WorldWideScience

Sample records for plants case gestion

  1. Environmental management in Chile: The power plants case; Gestion ambiental en Chile: Caso de las centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Jadrijevic, Maritza [Comision Nacional del Medio Ambiente, (Chile)

    1996-12-31

    In this paper are presented the general aspects of the historic evolution o the legal norms on environmental matters in Chile; general aspects of the electric generation system and the instruments of environmental management currently applied in the fossil fueled power plants, such as: the assessment system of the environmental impact; compliance of the air quality and emissions Standards and plans for decontamination [Espanol] En este trabajo se dan a conocer aspectos generales de la evolucion historica de las normas juridicas en materia ambiental en Chile; aspectos generales del sistema de generacion electrica y los instrumentos de gestion ambiental que actualmente se aplican a las plantas de generacion termoelectricas, tales como: el sistema de evaluacion de impacto ambiental; cumplimiento de normas de la calidad de aire y de emision y, planes de descontaminacion

  2. Environmental Management System of Thermal plants: SIGMA; El sistema de gestion medioambiental de centrales termicas: SIGMA

    Energy Technology Data Exchange (ETDEWEB)

    Mateo Montoya, I.; Rodriguez Zarzalejos, A.

    1995-04-01

    SIGMA, (Sistema de Gestion Medioambiental) this Environmental Management System includes the different factors that are present in the environmental management of a conventional Thermal Plant such as: Air and Water Pollution, Hazardous Waste Management, Energy Recovery and Control of the Environmental Impact. Up to date the section Air Pollution is being developed and set up in the Thermal Plant of Meirama. (Author)

  3. Asco 2044 nuclear power plant: management system; Central nuclear Asco 2044: sistema de gestion

    Energy Technology Data Exchange (ETDEWEB)

    Ramos Pellejero, J.L.

    2010-07-01

    Due to their complexity and involvement in safety related matters, Nuclear Power Plants have highly eliable management organisations where safety is top priority. To achive this, there are many elements specific to this type of organisation that are available and which are integrated within a Management System that comprises the necessary meassures to ensure and adequate level of safety in the facility, in such a way that it promotes continual improvement, a strengthening of the safety culture and good results in this field. (Author).

  4. Knowledge management in nuclear power plants; Gestion del conocimiento en las centrales nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Cal, C. de la; Barasoain, F.; Buedo, J. L.

    2013-03-01

    This article aims to show the importance of knowledge management from different perspectives. In this first part part of the article, the overall approach that performs CNAT of knowledge management is described. In the second part, a specific aspect of knowledge management in ANAV, tacit knowledge transfer is showed. finally, the third part discusses the strategies and actions that are followed in CNCO for knowledge management. All this aims to show an overview of knowledge management held in the Spanish Nuclear Power Plants. (Author)

  5. Life management plants at nuclear power plants PWR; Planes de gestion de vida en centrales nucleares PWR

    Energy Technology Data Exchange (ETDEWEB)

    Esteban, G.

    2014-10-01

    Since in 2009 the CSN published the Safety Instruction IS-22 (1) which established the regulatory framework the Spanish nuclear power plants must meet in regard to Life Management, most of Spanish nuclear plants began a process of convergence of their Life Management Plants to practice 10 CFR 54 (2), which is the current standard of Spanish nuclear industry for Ageing Management, either during the design lifetime of the plant, as well as for Long-Term Operation. This article describe how Life Management Plans are being implemented in Spanish PWR NPP. (Author)

  6. Environmental management project of the Patache power plant project and associated transmission line; Gestion ambiental proyecto central termoelectrica Patache y linea de transmision asociada

    Energy Technology Data Exchange (ETDEWEB)

    Carreno Paredes, Cristian [Compania Electrica Tapaca (CELTA, S. A.), (Chile)

    1996-12-31

    This report makes a brief description of the services developed by INGENDESA of the projects executed in the area of engineering as well as in the area of environmental matters. In a second instance a relatively detailed presentation is made of the most important background of the Chilean project: {sup E}nvironmental Management of the Patache Power Plant and the Associated Transmission Line-Compania Electrica Tarapaca (CELTA, S.A.) Region I{sup .} The justification for the construction of the power plant and the environmental problems associated with the same are described [Espanol] En el presente informe se hace una breve presentacion de los servicios desarrollados por INGENDESA, de los proyectos elaborados tanto en el area de la ingenieria como en la tematica ambiental. En segunda instancia, se hace una presentacion relativamente detallada de los antecedentes mas importantes del proyecto chileno {sup G}estion Ambiental Central Patache y Linea de Transmision Asociada - Compania Electrica Tarapaca (CELTA, S.A.) I Region{sup .} Se describe la justificacion de la construccion de esta central termoelectrica y los problemas ambientales asociados a la misma

  7. CONTABILIDAD DE GESTION

    OpenAIRE

    QUINTERO RIVERA, GILBERTO

    2005-01-01

    La contabilidad de costos constituye la parte troncal o mas sustantiva de la contabilidad de gestion,llegando esta a suponer un enriquecimiento y una ampliacion de aquella,en primer lugar,de caracter extensivo,ya que se ha ampliado su campo de actuacion y por lo tanto las aplicaciones o aspectos de la gestion empresarial sobre los que se proyecta;tambien ha experimentado una ampliacion,de caracter intensivo,ya que las actuales tecnicas,modelos e instrumentos de apoyo son sensiblemente mejores...

  8. Gestion des risques

    CERN Document Server

    Louisot, Jean-Paul

    2009-01-01

    Depuis le début du lie siècle, la gestion des risques connaît une véritable révolution culturelle. Jusqu'alors fonction technique, centrée autour de l'achat de couverture d'assurances, elle est devenue une discipline managériale et transversale : une valise d'instruments que chaque manager doit connaître et appliquer quels que soient son domaine de compétence et ses missions au sein de l'organisation. En effet, la gestion des risques est une culture qui doit être assimilée par chacun des acteurs. C'est précisément l'ambition des 101 questions rassemblées dans cet ouvrage : apporter à chaque manager d'entreprise, de collectivité, d'établissement de santé..., des réponses claires au " pourquoi " et au " comment " : Comment identifier les risques ? Comment analyser les risques ? Quels sont les objectifs de la gestion des risques ? Une carte des risques pour quoi faire ? Pourquoi faut-il financer les risques ? Les entreprises ont-elles des responsabilités pénales ? En quoi consiste la gestion...

  9. Environmental management systems implemented in the Spanish nuclear power plants; Sistemas de gestion ambiental implantados en las centrales nucleares espanolas

    Energy Technology Data Exchange (ETDEWEB)

    Redondo, R.; Fernandez Guisado, M. B.; Hortiguela, R.; Bustamante, L. F.; Esparza, J. L.; Villareal, M.; Yague, F.

    2013-09-01

    The companies that own the Spanish Nuclear Power Plants, aware of social concern and in the context of a growing demanding environmental legislation, have a permanent commitment to the electricity production based on the principles of a maximum respect for the environment, safety, quality, professionalism and continuous improvement. In order to minimize the environmental impact of their plants they have implemented and Environmental Management System based on the ISO 14001 Standard. They minimize the environmental impact by identifying the significant environmental aspects and defining the corresponding objectives. This article describes the referred environmental management systems and their environmental objectives, as applied and defined by the Spanish Nuclear Power Plants. (Author)

  10. RELATIONS PLANTE/SOL/CLIMAT Connaître le sol : nouveaux enjeux pour la gestion des territoires ruraux

    Directory of Open Access Journals (Sweden)

    Stengel Pierre

    2000-11-01

    ériau support standard, modulant secondairement les fonctions de production des intrants. Cette vision est certes un peu extrême, mais il n’en reste pas moins que, dans la relations agriculture-territoire, le sol a occupé progressivement une position de plus en plus secondaire. Une des manifestations spécifiques à notre pays de cette indifférence croissante est la faiblesse des moyens dont il s’est doté pour connaître et gérer la diversité de sa couverture pédologique. Il ne dispose ni d’un inventaire exhaustif suffisamment précis pour répondre aux besoins de l’agriculture et de la décision publique, ni d’un outil de surveillance efficace de l’état de son patrimoine sol. Enfin, la protection des sols n’y est assurée que très partiellement par des dispositions juridiques ou réglementaires. L’évolution récente du contexte agricole, qu’elle concerne les mécanismes de soutien et de formation de revenu, les exigences de compétitivité et de qualité des produits, les liens au territoire et à l’environnement ou la recherche de la durabilité, conduit à une révision profonde de cette attitude. Cette nouvelle donne porte en gestation de nouvelles manières de produire et, plus généralement, de nouvelles méthodes de gestion de l’espace rural dans lesquelles le sol et son évolution devront être beaucoup plus fortement pris en compte. C’est la nécessité de ce changement et ses implications en matière de mobilisation des connaissances sur le sol qui constituent le propos de cet article.

  11. Gestion de production

    CERN Document Server

    Courtois, Alain; Pillet, Maurice

    1995-01-01

    n ouvrage de référence pour tous les gestionnaires de production industrielle. Un cas concret d'entreprise fictive, fil rouge de l'ouvrage, pour expliquer et illustrer les différents outils et méthodes utilisés. Toutes les méthodes et tous les outils de gestion de production, des plus traditionnels aux novateurs, explicités, comparés et illustrés. L'ouvrage, entièrement mis à jour, reflète toutes les évolutions liées à la gestion de production. II se divise désormais en deux grandes partes ; la première regroupe les méthodes de base de la gestion de la production ainsi que l'informatisation de celles-ci (chapitres 2 à 10) ; la seconde concerne les méthodes d'amélioration de la production (chapitres 11 à 15), en mettant un accent fort sur la philosophie du Lean Manufacturing : L'entreprise en mouvement avec le Lean ; Les principaux outils du Lean ; Le pilotage d'atelier en flux tirés par la méthode Kanban ; L'implantation d'ateliers ; Les indicateurs de performance. Pour faciliter la le...

  12. Chapitre VI. La politique de gestion technologique

    OpenAIRE

    Drouvot, Hubert; Verna, Gérard

    2014-01-01

    1. LES COMPOSANTES DE LA GESTION TECHNOLOGIQUE Par rapport aux expressions de gestion commerciale, gestion du personnel ou de gestion financière, le terme de gestion technologique est d’un emploi plutôt récent en France. Cette notion est devenue également courante dans la littérature en gestion en provenance de certains nouveaux pays industrialisés, notamment au Brésil. Aussi, en nous appuyant à la fois sur des publications brésiliennes (Bertero, 1977) et sur des recherches auxquelles nous av...

  13. Chapitre VI. La politique de gestion technologique

    OpenAIRE

    Drouvot, Hubert; Verna, Gérard

    2014-01-01

    1. LES COMPOSANTES DE LA GESTION TECHNOLOGIQUE Par rapport aux expressions de gestion commerciale, gestion du personnel ou de gestion financière, le terme de gestion technologique est d’un emploi plutôt récent en France. Cette notion est devenue également courante dans la littérature en gestion en provenance de certains nouveaux pays industrialisés, notamment au Brésil. Aussi, en nous appuyant à la fois sur des publications brésiliennes (Bertero, 1977) et sur des recherches auxquelles nous av...

  14. Gestion et mondialisation

    Directory of Open Access Journals (Sweden)

    Jean-Luc Metzger

    2010-10-01

    Full Text Available L’économie mondiale est en crise. Apparue dans la sphère financière globalisée, cette « crise » se serait propagée à l’économie réelle planétaire, laquelle, pour s’adapter, exige des élites politiques qu’elles interviennent et encouragent la mise en œuvre d’instruments de gestion portant sur l’emploi, l’organisation du travail ou les relations avec les différents marchés (clients et fournisseurs. Une telle vision, dominante, naturalise la production des dynamiques contemporaines. Elle présen...

  15. Gestion durable du paysage

    Directory of Open Access Journals (Sweden)

    Jean-David Gerber

    2009-03-01

    Full Text Available Le paysage est de plus en plus perçu comme une ressource. À ce titre, il est nécessaire de trouver des instruments juridiques, politiques ou économiques susceptibles de gérer cette « ressource-paysage » sur le long terme. Le gouvernement suisse a introduit récemment l’instrument des parcs naturels régionaux, organisés selon le modèle français, dans sa législation de protection de la nature et du paysage. Une mise en regard des nouveaux parcs avec des structures de gestion beaucoup plus anciennes, les bourgeoisies et les corporations, permet de mettre en évidence les forces et les faiblesses de chacun de ces instruments dans leur contribution à résoudre les rivalités d’usage entre acteurs utilisant ou influençant la ressource paysage. Cette comparaison permet de formuler des recommandations pratiques concernant la gestion de cette ressource.The landscape is increasingly perceived as a resource. For this reason, it is necessary to find legal, political and economic instruments that will succeed in managing this “resource landscape” in the long term. The Swiss government recently introduced the instrument of regional nature parks into the legislation governing nature and landscape preservation; the proposed parks are organized on the basis of the French model. The examination of the new parks from the perspective of much older management structures, i.e. the civic municipalities (bourgeoisies and corporations, makes it possible to demonstrate the strengths and weaknesses of each of these instruments in their contribution to the resolution of use rivalries between actors who use or influence the resource landscape. This comparison also enables the formulation of practical recommendations regarding the management of this resource.

  16. Comptabilité de gestion

    OpenAIRE

    Alain Burlaud; Claude Simon

    2003-01-01

    Présentation de la comptabilité de gestion dans son contexte organisationnel et économique pour la prise de décisions : - politique des prix ; - mise sous tension de l'organisation ; - contextes particuliers : organisations publiques, banques, entreprises en réseau.

  17. La difficile gestion de l’eau en contexte transfrontalier : un exemple franco-espagnol The difficulty of managing water in a cross-border region: the Franco-Spanish case

    Directory of Open Access Journals (Sweden)

    Caroline Maury

    2011-03-01

    Full Text Available En se focalisant sur les politiques de gestion de l’eau, cet article aborde la question des usages sociaux de la frontière, de leur complexité et de leur ambiguïté ainsi que l’incidence de ces derniers sur la gouvernance du territoire transfrontalier. L’exemple de la plaine cerdane, à la frontière entre la France et l’Espagne, permet de distinguer plusieurs types d’usage de la frontière: un usage social pour légitimer le maintien de pratiques et un usage politique et institutionnel jouant sur les niveaux d’action publique. Malgré le volontarisme de certains acteurs, la gestion de l’eau peine à trouver une assise et un fonctionnement transfrontaliers. En effet, dès qu’elle menace de modifier les équilibres politiques économiques et sociaux existants, la gestion transfrontalière de l’eau est ainsi rapidement ramenée au Traité des Pyrénées et à l’hétérogénéité des situations nationales. Sur cette frontière, le cas retenu montre donc bien que les acteurs locaux ont un usage « à la carte » de leur situation frontalière en fonction des enjeux auxquels ils sont confrontés.By focusing on water management policies, this article addresses the social usage of borders, their complexity and ambiguity and how they impact the governance of cross-border territory. The case of the Cerdinyan plain on the French-Spanish border, allows distinguishing several types of border uses: a social usage to legitimate ongoing practices and a political and institutional use that capitalizes on levels of public action. In spite of the goodwill of certain actors, water management still has not found a solid cross-border base. As a matter of fact, water management is quickly assimilated to the Pyrenees Treaty and to the heterogeneity of national situations whenever it threatens to modify extant political, economic, and social balances. Along this border, the example chosen thus shows that local actors benefit from a

  18. Supply Chain et Gestion des ressources humaines

    OpenAIRE

    Nondonfaz, Robert

    2010-01-01

    Rappels de quelques exigences de la Supply Chain en matière de gestion des ressources humaines; spécificités de certains métiers : chauffeur, magasinier, acheteur, gestionnaire de stock, gestion des imprévus

  19. GESTION "PAR" LES COMPETENCES ET POSITIONNEMENT DU CONTROLE DE GESTION ?

    OpenAIRE

    Rouby, Evelyne; Solle, Guy

    2002-01-01

    International audience; Cet article a pour but de contribuer à une définition des contours du concept de "gestion par les compétences". De notre point de vue, ce concept relèverait des mêmes principes que la compétence organisationnelle à savoir les principes "systémique, de finalité, de spécificité, de visibilité et de reconnaissance, dynamique et cumulatif". Il consisterait à en assurer l'interaction dynamique entre les niveaux stratégiques et opérationnels et selon des cycles temporels dif...

  20. Management program of cables and electrical conductions in operating nuclear power plant; Programa de gestion de cables y conducciones electricas en C. N. en Operacion

    Energy Technology Data Exchange (ETDEWEB)

    Perez Pereira, J.

    2012-07-01

    The management of cables and electrical conductions of a nuclear power plant is an activity very important during making the original design and subsequent design modifications, by the cable volume and nuclear safety regulations. During the design and construction of the Nuclear Power Plants, the late XX century, this work was carried out using manual procedures. The introduction of new technology provides users the ability to create relational databases for data according to the needs. Also tools and IT programs develop for the management of these databases with more reliability and a major number of possibilities at the moment of handling the available information. This paper aims to expose advances and developments in this field and present the methodology and lessons learned.

  1. Fuel cycle management by the electric enterprises and spanish nuclear Power plants; Gestion del ciclo de combustible por las empresas electricas y centrales nucleares espanolas

    Energy Technology Data Exchange (ETDEWEB)

    Celma, E. M.; Gonzalez, C.; Lopez, J. V.; Melara, J.; Lopez, L.; Martinez, J. C.; Culbras, F.; Blanco, J.; Francia, L.

    2015-07-01

    The Nuclear Fuel Group reports to the Technology Committee of the UNESA Nuclear Energy Committee, and is constituted by representatives of both the Spanish Utilities and the Nuclear Power Plants. The Group addresses the nuclear plant common issues in relation to the operation and management of the nuclear fuel in their different stages of the Fuel Cycle. The article reviews the activities developed by the Group in the Front-End, mainly in the monitoring of international programs that define criteria to improve the Fuel Reliability and in the establishment of common bases for the implementation of changes in the regulation applying the nuclear fuel. Concerning the Back-End the Group focuses on those activities of coordination with third parties related to the management of used fuel. (Author)

  2. Rationalisation des modes de gestion Rationalization of Management Methods. The Case of the Mexican Sugar Industry in a Context of Commercial Overture

    Directory of Open Access Journals (Sweden)

    Catherine Delhoume

    2010-12-01

    Full Text Available Depuis le début des années 1990, le Mexique se trouve dans un contexte d’ouverture pluriel conditionné à une plus large échelle par le phénomène de la mondialisation. De ce fait, le pays est particulièrement sensible aux normes externes diffusées par le monde occidental, notamment les orientations économiques. À partir d’enquêtes de terrain menées auprès d’acteurs d’organisations de producteurs de canne à sucre, nous nous interrogeons sur les modalités de diffusion des dispositifs de gestion issus des pays industrialisés au sein des organismes sucriers mexicains, dans un pays et un secteur où d’autres dispositifs d’encadrement leur ont préexisté. Ainsi, on assiste à l’émergence d’un discours mettant en avant la figure de l’agriculteur-entrepreneur performant, relayé par des acteurs qui acquièrent une forte reconnaissance dans la nouvelle configuration sucrière : les « experts scientifiques ». Dans le même temps, les cadres de pensée et d’action hérités montrent que ces dispositifs « rationnels » sont encastrés dans le social. L’article analyse comment cette double dynamique débouche sur des pratiques originales qui peuvent être qualifiées de syncrétiques.Since the 1990’s, Mexico has found itself in a multi-faceted context of overture, caused to a great extent by the phenomenon of globalization. For this reason, the country is particularly sensitive to external norms spread by the western world, and notably to its economic orientations. Based on field surveys carried out among actors in sugar cane producing organizations, we look into the modalities of the spreading of management arrangements issuing from industrialized countries within Mexican sugar organizations, in a country and a sector wherein other organizational arrangements preexisted them. Thus we witness the emergence of a discourse accentuating the figure of the performant agricultural entrepreneur, backed up by actors

  3. Gestion automatizada e integrada de controles de seguridad informatica

    National Research Council Canada - National Science Library

    Montesino Perurena, Raydel; Baluja Garcia, Walter; Porven Rubier, Joelsy

    2013-01-01

    En el presente trabajo se propone un modelo para la gestion automatizada e integrada de controles de seguridad informatica, basado en sistemas de gestion de informacion y eventos de seguridad (SIEM...

  4. Impact on the aquatic environment of hydro-peaking in hydroelectric plants; Impact sur le milieu aquatique de la gestion par eclusees des usines hydroelectriques

    Energy Technology Data Exchange (ETDEWEB)

    Sabaton, C.; Lauters, F.; Valentin, S.

    1996-12-31

    There are a number of types of hydroelectric installations on French rivers. Some of these intermittently turbine water stored in dammed reservoirs, in order to use available reserves at the most opportune moment for power generation. These plants, run under `hydro-peaking` management procedures, cause variations in discharge in river sections downstream of the restitution, on a daily or weekly scale. To answer questions concerning the impact of such variations in discharge on the aquatic environment, EDF launched a research program aimed at describing and better understanding the physical and biological phenomena related to hydro-peaking and assessing the possible impact of this type of plant management on French streams. Seven sites subjects to hydro-peaking were studied on rivers with mean flow rates lower than 20 m{sup 3}/s (which corresponds to over 65 % of EDF hydro-peaking sites). Four themes in particular were examined: hydraulic characterization of hydro-peaking, modifications in thermal regime and water quality, response of benthic invertebrates and response of fish populations to hydro-peaking. For fish as well as for invertebrates, the role of the base discharge - in the absence of peaking flow - and that of the morphology of the river bed (and, in particular, the presence of shelter for fish) during periods of strong discharge were clearly highlighted. Impact assessment requires a precise diagnosis of the state of biocenoses. To carry out such a diagnosis, one must reason in terms of species, life phase (particularly the most sensitive phases) and population structure as well as the type of stream and the faunizone involved. A risk assessment is possible by means of simultaneous study of the morphology of the river bed and the response of the signal generated by hydro-peaking in terms of hydrology and physical characteristics downstream of the restitution. (authors). 25 refs.

  5. Metals essentials for plants: the nickel case.

    Science.gov (United States)

    Pennazio, Sergio

    2012-01-01

    The long period of research that preceded the discovery of nickel (Ni) essentiality for plants constitutes a paradigmatic case of doubts and uncertainties that often occur in experimental biology. The history of the essentiality of chemical elements that are present as traces in the plant ash (micronutrients) began in the mid-Nineteenth, but it had blurred outlines until Daniel Arnon, towards the mid-twentieth century, fixed the now historic 'criteria of essentiality'. During this rather long time, seven micronutrients were recognised, step by step, as essential for higher plants, (iron, manganese, boron, Zinc, copper, molybdenum, and chloride), at first thanks to meticulous observations of deficiency symptoms and then to the culture of plant on aqueous solutions. The last element to be recognised as essential for plant nutrition was Ni, which was considered a very toxic element for more than a century. Towards the Thirties, Ni became to be regarded as a useful element by some researchers, but the ultimate proof of its essentiality was obtained only in the Eighties, when the American group of Ross M. Welch demonstrated that Ni is a cofactor of the enzyme urease. More recent research shows that Ni improves the nitrogen (N) metabolism and appears to be important for the efficiency of N fixation.

  6. Integrated management software files action in case of fire; Software de gestion integral de fichas de actuacion en caso de incendio

    Energy Technology Data Exchange (ETDEWEB)

    Moreno-Ventas Garcia, V.; Gimeno Serrano, F.

    2010-07-01

    The proper management of emergencies, is a challenge for which it is essential to be prepared. Integrated Software Performance Chips In case of fire and rapid access to information, make this application a must to effectively drive any emergency due to fire at any nuclear facility.

  7. Technology transfer and knowledge management in cooperation networks: the Airzone case; Transferencia y gestion del conocimiento en las redes de cooperacion: El caso de Airzone

    Energy Technology Data Exchange (ETDEWEB)

    Benavides Velasco, C. A.; Quintana Garcia, C.

    2007-07-01

    This paper highlights the importance of cooperation networks between the public system of R and D and industry to promote technology transfer, knowledge management, and the consolidation and growth of new technology firms. Through the case of Air zone,his paper shows the significance of collaboration agreements between University and industry to enhance technology transfer and the success of entrepreneurial projects. (Author) 28 refs.

  8. GESTION DES RISQUES ET DES INCERTITUDES L'EMERGENCE D'UN CONTRÔLE DE GESTION " PAR EXCEPTION "

    OpenAIRE

    Wegmann, Grégory

    2003-01-01

    International audience; Le thème de la gestion des risques a été peu abordé en contrôle de gestion et le fonctionnement des outils traditionnels comme les budgets postulent une maîtrise des risques et des incertitudes. L'émergence de nouvelles approches en contrôle de gestion montre une évolution sur ce point.

  9. GESTION DES RISQUES ET DES INCERTITUDES L'EMERGENCE D'UN CONTRÔLE DE GESTION " PAR EXCEPTION "

    OpenAIRE

    Wegmann, Grégory

    2003-01-01

    International audience; Le thème de la gestion des risques a été peu abordé en contrôle de gestion et le fonctionnement des outils traditionnels comme les budgets postulent une maîtrise des risques et des incertitudes. L'émergence de nouvelles approches en contrôle de gestion montre une évolution sur ce point.

  10. Customer service: Re-Engineering of handling complain process the aeronautical industrial case; Re-Ingenieria en el proceso de gestion de reclamaciones. Aplicacion al sector aeronautico

    Energy Technology Data Exchange (ETDEWEB)

    Rio-Belver, R. M.; Contreras-Romeral, M. T.

    2009-07-01

    In this paper we analyze the actions carried out in Customer Care in order to improve the complaint's management system in an aeronautical company. The principles of knowledge management are taken as foundation in order to clarify the existing knowledge. A management system is designed based on knowledge of previous cases. Prior to enhance the organizations capacity and the efficiency of the process, its necessary to conduct a through re-engineering of the current process. A diagrammed turn breakdown techniques is used, brainstorming structure, the five questions, to generate the best alternatives. This big quantity of alternatives should be grouped in tasks using the affinity diagram or method Kawakita Jiro. This is achieved measurable improvements in service resolution and therefore an improvement in the products features. (Author) 7 refs.

  11. Le patrimoine et ses outils de gestion

    CERN Document Server

    Garcin, J

    2001-01-01

    Les principale taches de gestion du Patrimoine immobilier du CERN sont la saisie des données, leur mise à jour, l'archivage et la mise à disposition des informations. Les outils de gestion actuels : Le Système de Gestion de Base de Données Relationnelles alphanumérique ORACLE permet de gérer toutes les informations du Patrimoine, sur le réseau du CERN. Le logiciel de dessin Graphique MICROSTATION (Bentley) a été installé dans la division ST depuis fin 1991. Les plans de situation des sites, des bâtiments et locaux, des espaces confinés ont été réalisés avec ce logiciel. Les outils de demain : La mise en place du SIG (Système d'Information Graphique) STAR a été réalisée en 1993. Le transfert des plans de locaux de MICROSTATION vers STAR est en cours depuis une année environ. Le dessin de la cartographie des réseaux de canalisations Eaux Usées et Eaux Pluviales est en cours de réalisation. Le Web est l'outil de consultation de l'information par les utilisateurs.

  12. NOUVEAUX REPERES ET NOUVEAUX ESPACES DU CONTROLE DE GESTION : LE CAS DES ACTIVITES DE SERVICE

    OpenAIRE

    Meyssonnier, Jean-François

    2013-01-01

    International audience; Management control cannot be understood any more only in its traditional financial dimension. A new refunded and enlarged approach, which includes control mechanisms that guarantee the implementation of the company business model at the level of business processes, is necessary. A presentation of this new approach is made in the case of service activities.; Le contrôle de gestion ne peut plus être appréhendé uniquement dans sa dimension financière classique. Une approc...

  13. Guideline on dependability management for the power industry: detailed description of international power plant equipment dependability indicators; Guide de gestion de la surete de fonctionnement dans l`industrie electrique: description detaillee d`indicateurs de surete de fonctionnement internationaux

    Energy Technology Data Exchange (ETDEWEB)

    Procaccia, H.; Silberberg, S.

    1997-10-01

    Dependability Management involves the management of reliability, availability maintainability and maintenance support, and in the power industry is necessary to ensure that plant meets the Reliability, Availability and Maintainability (RAM) targets set by the Utilities. In 1993, a joint (Standard on Dependability Programme Management - Part 1: Dependability Programme Management), ISO 9000-`: 1993 (Quality Management and Quality Assurance Standards - Part 4: Guide to Dependability Programme Management). UNIPEDE established a group of experts (Nulethermaint) to produce guidelines on its implementation specifically for use in the power industry. The present document comprises Part 2 OF THE UNIPEDE plant performance indicators and can be applied to both nuclear and fossil plant. There are five different equipment dependability indicators, all relating to equipment maintenance activities and the impact that these activities have on the loss of both system function and unit capability. Per year, each of the indicators can be applied separately to both preventive maintenance and corrective maintenance, giving rise to as many as ten indicator values for each item of equipment. Used in this way, the indicators provide a comprehensive picture of the maintenance strategy employed for key pieces of equipment, and its effectiveness. They are, therefore, a valuable managerial tool for improving maintenance activities at the unit level within a utility. This document provides guidance on the division of both nuclear and fossil power plant into their component parts and in each case the types of equipment having the most dominant effect on dependability are identified. These are the items which merit the greatest attention with regard to the equipment dependability indicators. (authors).

  14. Les plans de gestion de crises dans les pays francophones

    OpenAIRE

    Barkaoui, Houssem; Guinet, Alain; Tao, Wang; Meskens, Nadine

    2016-01-01

    International audience; La gestion des catastrophes, appelée plus communément gestion des situations d'urgences ou encore gestion de crises, est la discipline qui s'intéresse à l'évaluation des menaces et de leurs risques relatifs ainsi qu'aux stratégies mises en oeuvre afin d'en limiter l'occurrence ou les conséquences en cas de survenue. Dans ce papier, nous allons étudier le cadre réglementaire et les mesures prises par les gouvernements pour gérer des situations exceptionnelles de crises ...

  15. Riesgos del trabajo en el sistema de gestion de calidad

    National Research Council Canada - National Science Library

    Ulloa-Enriquez, Medardo Angel

    2012-01-01

    El objetivo del presente articulo es compartir una metodologia adecuada para identificar e incorporar los riesgos de salud y seguridad al sistema de gestion de calidad certificado bajo la Norma ISO 9001...

  16. Situacion de la gestion de inventarios en Cuba

    National Research Council Canada - National Science Library

    Lopes-Martinez, Igor; Gomez-Acosta, Martha Ines; Acevedo-Suarez, Jose Antonio

    2012-01-01

    El objetivo del presente articulo es analizar la situacion de la gestion de inventarios en Cuba, a partir de las experiencias obtenidas durante mas de 10 anos en entidades de los sectores de servicios...

  17. Panama Viejo: una experiencia exitosa de gestion patrimonial

    National Research Council Canada - National Science Library

    Guillermo Martin, Juan; de Arango, Julieta

    2013-01-01

    Desde finales de 1995 comienza la gestion del Conjunto Historico Monumental de Panama Viejo por parte del Patronato Panama Viejo, una institucion mixta, sin fines de lucro, cuyos objetivos principales...

  18. Modelos ontologicos de soporte a la gestion de competencias profesionales

    National Research Council Canada - National Science Library

    Blanco-Gonzalez, Jeffrey; Ortega-Gonzalez, Yadary; Delgado-Fernandez, Mercedes; Dominguez-Pena, Leticia; Gonzalez-Vengas, Monica

    2011-01-01

    .... En la presente investigacion se realiza un estudio del estado del arte sobre modelos ontologicos de soporte a la gestion de competencias profesionales, con vistas a caracterizar algunos de estos en...

  19. Risk Management and Disaster Mitigation: A Case study Applied to Haïti « Gestion du risque et atténuation des désastres : un exemple appliqué à Haïti »

    Directory of Open Access Journals (Sweden)

    Charley G. Granvorka

    2012-05-01

    Full Text Available Natural hazards do have impacts on development. Of heavy consequences on both the human life and the economic development these impacts are critical in most of the Caribbean islands in general and specifically in Haiti. Thus, there is an urgent need to implement strategies aiming at reducing risk for lessening losses. By implementing well designed risk management strategies vulnerability can be reduced, and as a consequence, investment and employment can be protected. Even so preparedness to sustainable development is at the global Agenda, with regards to the specific case of Haiti, we assume that, at present, the country is not at all involved in such a long run strategy. Government attention is focused on immediate urgencies to be solved. By questioning the particular case of tourism, we show the positive impact of risk management strategies on growth using a Cost-Benefit Analysis (CBA.Les catastrophes naturelles ont sans conteste des impacts sur le développement. Ces derniers, qui occasionnent de lourdes conséquences à la fois sur la vie humaine et le développement économique, sont préjudiciables dans la plupart des îles des Caraïbes et plus particulièrement en Haïti. Ainsi, il devient urgent de mettre en œuvre des stratégies visant à réduire les risques afin de minimiser les pertes occasionnées. En établissant des stratégies de gestion des risques bien conçues, la vulnérabilité des pays peut être réduite, et, par conséquent, l'investissement et l'emploi protégés. Même si le développement durable est à l'ordre du jour à l’échelle mondiale, il semble que ce ne soit pas le cas d'Haïti à l’heure actuelle, le pays n'étant pas du tout impliqué dans une telle stratégie à long terme. L'action du gouvernement se focalise sur la résolution des urgences immédiates. En s'interrogeant sur le cas particulier du tourisme, nous montrons, en utilisant une analyse coûts-avantages, l'impact positif des stratégies de

  20. PROCEDE DE GESTION DENERGIE DUN VEHICULE ELECTRIQUE

    OpenAIRE

    Granato, Giovanni; Zidani, Hasnaa

    2013-01-01

    L'invention se rapporte à un procédé de gestion d'énergie pour un véhicule électrique, comprenant un calculateur, un moteur électrique, une batterie électrique et un moteur thermique d'appoint utilisant un carburant et conçu pour aider la batterie à faire fonctionner ledit moteur électrique. La principale caractéristique d'un procédé selon l'invention est qu'il comprend les étapes suivantes : - une étape de sélection d'un trajet compris entre un point de départ et un point de destination, - u...

  1. La gestion des reseaux IP basee sur les technologies Web et le modele push

    OpenAIRE

    1999-01-01

    La gestion des rseaux IP est actuellement fonde sur le protocole SNMP, ainsi que sur des plateformes de gestion coteuses implmentant le paradigme gestionnaire-agent du cadre de gestion SNMP. Cette gestion repose sur deux types de transfert de donnes: un protocole de type requte/rponse, pour recueillir des donnes statistiques et pour surveiller le rseau, et du push non sollicit, pour envoyer les notifications. Ce modle conceptuel souffre de plusieurs carences, notamment en ce qui concerne le t...

  2. Management experience on microthrix parvicella bulking in an activated sludge wastewater treatment plant; Esperienza di gestione del bulking filamentoso causato da microthrix parvicella in un impianto a biomassa sospesa

    Energy Technology Data Exchange (ETDEWEB)

    De Bortoli, N.; Mion, M. [AMGA S.p.A., Azienda Multiservizi, Udine (Italy); Di Giorgio, G.; Goi, D. [Udine Univ., Udine (Italy). Dipartimento di scienze e tecnologie chimiche

    2005-10-15

    Activated sludge wastewater treatment processes may give inefficiencies due to biological imbalances involving biomass. In fact, external causes as temperature lowering can increase the proliferation of the filamentous bacterium Microthrix parvicella into activated sludge flocks. Microthrix parvicella increases may create dangerous bulking phenomena compromising secondary settling without varying bio-kinetic parameters. In this case of study, a method to defeat growth of Microthrix parvicella has been set up. Aluminium poly-chloride (PAC) has been added to activated sludge contained into oxidation tanks of a municipal wastewater treatment plant, where a large growth of Microthrix parvicella has been periodically observed. It has been demonstrated that a definite PAC concentration can reduce Microthrix parvicella proliferation into activated sludge flocks so bulking phenomena can be well reduced. [Italian] I trattamenti di depurazione basati sulla tecnologia a biomassa sospesa possono essere soggetti a malfunzionamenti legati ad alterazioni degli equilibri biologici del complesso di microrganismi del fango attivo. In particolare, alcuni fattori esterni quali le basse temperature possono incrementare lo sviluppo del batterio filamentoso Microthrix parvicella, la cui eccessiva proliferazione nei fiocchi del fango attivo provoca pericolosi fenomeni di bulking filamentoso con peggioramento del processo di sedimentazione secondaria. La presenza di tali situazioni critiche puo non alterare necessariamente i parametri biocinetici principali del processo. Nella presente sperimentazione, condotta nelle vasche di un impianto di depurazione biologica di reflui urbani soggetto alla frequente proliferazione di Microthrix particella, si e voluto mettere in atto una procedura di controllo nei confronti dell'eccessiva crescita di tale specie batterica. E stata verificata l'utilita dell'impiego nel fango attivo del policloruro di alluminio (PAC) che, in opportune

  3. Experience the declassification of radioactive waste from Spanish nuclear power plants as an alternative route of administration; Experiencia de la desclasificacion de los residuos radiactivos procedentes de Centrales Nucleares Espanolas como alternativa de via de gestion

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Gomez, M. A.; Gonzalez Crespo, M.

    2011-07-01

    During the operation of the plants generated several slightly contaminated materials that can be managed conventionally by declassification. Declassification activity is incorporated into the Waste Management Plan of each plant considered a {sup g}ood practice{sup .} However experience to date demonstrates that there are difficulties to carry out the practice.

  4. Center for emergency response at the ENUSA fuel fabrication plant in Juzbado; El centro de gestion de las emergencias de la fabrica de combustible nuclear de ENUSA en Juzbado

    Energy Technology Data Exchange (ETDEWEB)

    Alvaro Perez, C.; Romano, A.

    2016-08-01

    Effective emergency preparedness and management is critical for a safe exploitation of nuclear installations like the Enusa fuel fabrication plant. In 2012, an important project was carried out at the plant which enlarged and remodeled the Emergency Room used until then to give response to the Internal Emergency Plan postulated scenarios. This project was motivated after carefully analyzing the results of audits, inspections and operation experience as well as after studying the conclusions of the Fukushima accident emergency management weaknesses. The new Center for Emergency Response, which hosts the plant control room, devoted to monitoring the plant safety systems on a constant basis, greatly improves both technical means available and operative procedures as well as human interactions during an emergency. This paper describes the most relevant technical features of this Center, the safety systems which support its operation and the emergency management process that takes place in it. (Author)

  5. Interoperability of Knowledge Units in Plant Protection: Case Studies

    Directory of Open Access Journals (Sweden)

    M. Beránková

    2010-12-01

    Full Text Available In this work, we provide two case studies on interoperability and transfer of knowledge in the environment of acompany dealing with plant protection. We find that the area of plant protection is highly oriented on workingwith knowledge. In this case interoperability of knowledge can play an important role in acquiring knowledgefrom different environments to solve specific problem in companies dealing with plant protection. Nevertheless,the concept of interoperability is well-developed on the level of data and information only.We stem from our previous works, where we defined a logical concept for the interoperability of knowledge onthe level of knowledge units. The objective of this work is to show how to apply our process model ofknowledge interoperability in a particular plant protection company. Two case studies are provided in order todemonstrate distinguishing between simple knowledge transfer and knowledge interoperability.

  6. IMPREMAS Project, Pilo project for the integration between Environmental Management System and safety Management System; Il Progetto IMPREMAS, Progetto pilota per l'eco-gestion delle Piccole e Medie Imprese classificate a rischio per l'uso e lo stoccaggio di sostanze pericolose previste dal DPR 17.5.1988 n. 175

    Energy Technology Data Exchange (ETDEWEB)

    Luciani, R.; Andriola, L.; Brunetti, N.; Caropreso, G. [ENEA, Centro Ricerche Casaccia, Rome (Italy). Dipt. Ambiente

    1999-07-01

    The topic discussed in this report can be inserted within the context of case studies carried out by ENEA in the promotion of Environmental Management Systems (EMAS-ISO14000). During the IMPREMAS project ENEA has therefore set up a method of integration between Environmental Management System and Safety Management System. [Italian] L'argomento trattato nel presente lavoro si inserisce nel contesto degli studi effettuati dall'ENEA nella promozione dei Sistemi di Gestione Ambientale (EMAS-ISO14000). ENEA durante il progetto IMPREMAS ha sviluppato un metodo per l'integrazione dei Sistemi di Gestione Ambientale con i Sistemi di Gestione della Sicurezza.

  7. Perception de la gestion du paysage

    Directory of Open Access Journals (Sweden)

    Martin Coy

    2009-03-01

    Full Text Available Complex landscape management instruments based on a dynamic, innovative land-conservation paradigm and spatial zoning to provide for graded intensity of protection and human use are being implemented in the newer generation of biosphere reserves and biosphere parks. The multifunctionality of these exemplary landscapes with sustainable development is a great challenge; it also offers considerable potential for conflict. This paper intends to demonstrate the extent to which multifunctionality has been realised in the alpine Großes Walsertal Biosphere Park, and how the local population perceive the quality of their park five years after it was created. Landscape management efforts in the Großes Walsertal were monitored by accompanying regional-economic and perceptional studies, resulting in a discussion of required future actions.Des instruments complexes de gestion du paysage, fondés sur un paradigme dynamique et innovant de conservation ainsi que sur un zonage de l’espace visant à réguler la protection du territoire et son utilisation par l’homme, ont été mis en œuvre dans la dernière génération de réserves de biosphère et de parcs. La multifonctionnalité de ces paysages exemplaires du développement durable constitue un défi majeur, mais représente également une importante source de conflits. L’objectif de cet article est de démontrer dans quelle mesure la notion de multifonctionnalité a été appliquée à la réserve de biosphère alpine de Grosse Walsertal et d’évaluer comment la population locale perçoit la qualité de son parc, cinq ans après sa création. Les efforts de gestion du paysage dans la réserve de Grosse Walsertal ont été évalués par des études économiques régionales et par des enquêtes de perception, à l’origine d’un débat sur les actions futures à mettre en place.

  8. Quel contrôle de gestion pour les startups ?

    OpenAIRE

    Meyssonnier, François

    2015-01-01

    Une étude de huit PME fondées sur la science permet d’identifier les spécificités du contrôle de gestion des startups. Dans les startups émergentes le dirigeant n’utilise que des linéaments de contrôle de gestion essentiellement pour développer son approche cognitive du business model. Dans les startups en croissance le contrôle de gestion a un rôle de garde-fou et les outils de pilotage de la performance sont utilisés essentiellement de façon interactive et pour la prévision. Les principaux ...

  9. Gestion des risques : histoire, définition et critique

    OpenAIRE

    Georges Dionne

    2013-01-01

    L’étude de la gestion des risques a débuté après la Deuxième Guerre mondiale. La gestion des risques a pendant longtemps été associée à l’utilisation de l’assurance de marché pour protéger les individus et les entreprises contre différentes pertes associées à des accidents. Des formes de gestion des risques purs, alternatives à l’assurance de marché, ont pris forme durant les années 1950 lorsque l’assurance de marché a été perçue très coûteuse et incomplète. L’utilisation des produits dérivés...

  10. Plant-wide performance optimisation – The refrigeration system case

    DEFF Research Database (Denmark)

    Izadi-Zamanabadi, Roozbeh; Green, Torben; Razavi-Far, Roozbeh

    2012-01-01

    This paper investigates the problem of plant-wide performance optimisation seen from an industrial perspective. The refrigeration system is used as a case study, because it has a distributed control architecture and operates in steady state conditions, which is common for many industrial applicat......This paper investigates the problem of plant-wide performance optimisation seen from an industrial perspective. The refrigeration system is used as a case study, because it has a distributed control architecture and operates in steady state conditions, which is common for many industrial...

  11. Reinforced concrete corrosion: application of Bayesian networks to the risk management of cooling towers in nuclear plants; Corrosion du beton arme: application des reseaux bayesiens a la gestion du risque des aerorefrigerants des centrales nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Capra, B.; Le Drogo, J.; Wolff, V. [OXAND S.A., 77 - Avon (France)

    2007-07-01

    Degradation modeling of concrete structures uses uncertain variables and leads, using reliability assessment, to time dependant evolution of failure probabilities. However, only few data are generally available to feed models leading to two types of uncertainties: an intrinsic one depending on the modeled phenomena and one related to the precision of the measurements. Each new data available is a piece of information which allows updating the initial prediction. In this article, an example of updating process, based on a Bayesian network, is presented and applied on the corrosion risk of a cooling tower in a nuclear plant. (authors)

  12. Burnup extension and evolution in the fuel management of EDF's nuclear power plants; Accroissement des taux de combustion et impact des evolutions de gestion sur l'exploitation des reacteurs du parc EDF

    Energy Technology Data Exchange (ETDEWEB)

    Provost, J.L.; Thibault, X. [Electricite de France (EDF/DPN), 93 - Saint-Denis (France); Debes, M. [Electricite de France (EDF/DCN), 92 - Clamart (France); Kaplan, P. [Cogema, 78 - Velizy Villacoublay (France)

    2004-07-01

    Today the use of enhanced nuclear fuels that can sustain higher burnups has allowed a better optimization of the fuel management in nuclear power plants. The optimization for the near future is based on 3 aims: -) a better competitiveness of nuclear energy, longer campaigns mean a higher availability and less refueling so it has a direct impact on costs, -) a better flexibility to meet energy demand: a modulation of cycle lengths by more or less 2 months is possible by introducing or withdrawing 8 assemblies in the refueling load, this modulation will allow an optimization of the scheduling of the refueling shutdowns with respect to the seasonal energy demand peaks, -) a reduced volume of spent fuels (but with a higher level of radioactivity). (A.C.)

  13. MOCAT project: support tool to the management of the emergencies in the nuclear power plant of Santa Maria of Garona; Proyecto MOCAT: Herramienta de apoyo a la gestion de las emergencias en la central nuclear de Santa Maria de Garona

    Energy Technology Data Exchange (ETDEWEB)

    Calleja, J. L.

    2010-07-01

    Santa Maria de Garona NPP, as part of its continuous improvement philosophy, has decided to undertake the modernization of its Technical Support Center (CAT with the aim of improving the emergency management, provided in the Internal Emergency Plan. To this end, Tecnatom, applying the know-how acquired and within its line of technological innovation, has designed the Technical Support Center modernization project, MOCAT, in collaboration with Garona NPP. This project is basically the application of new information and communications technologies to the management of the information available on the CAT, and the computerization of the procedures for the responsible from the different areas of the CAT, which it is going to contribute significantly to the improvement of the security, allowing a better understanding of the state of the plant in emergency as well as a faster and smoother decision making, and an improved training and education of those responsible for the CAT in emergency management. (Author) 8 refs.

  14. Etude des cas: Gestion alternatîves des conflits

    OpenAIRE

    Lo, H.

    2006-01-01

    Metadata only record Pour mieux consolider les acquis consensuels pour la gestion alternative des conflits, il nous paraît essentiel de maîtriser un certain nombre de facteurs ayant trait au "partage" des gommeraies entre autres: Available in SANREM office, FS

  15. Plant-wide performance optimisation – The refrigeration system case

    DEFF Research Database (Denmark)

    Green, Torben; Razavi-Far, Roozbeh; Izadi-Zamanabadi, Roozbeh;

    2012-01-01

    This paper investigates the problem of plant-wide performance optimisation seen from an industrial perspective. The refrigeration system is used as a case study, because it has a distributed control architecture and operates in steady state conditions, which is common for many industrial applicat...

  16. The management of the radioactive waste generated by the EDF nuclear power plants in service; La gestion des dechets radioactifs issus du parc electronucleaire en fonctionnement d'EDF

    Energy Technology Data Exchange (ETDEWEB)

    Lantes, B. [EDF, Div. Production Nucleaire, 93 - Saint-Denis (France); Beguin, St. [EDF, Division combustible nucleaire, 93 - Saint-Denis (France)

    2011-02-15

    From the very beginning of France's nuclear power programme, EDF has developed industrial-scale management of the waste it produces, which has constantly progressed in line with changes in the regulations and the available technology. This management process, improved thanks to feedback and experience, ensures that any risk of exposure, at every stage, from production to final disposal, is controlled. The guidelines adopted by EDF for sustainable management of its waste are as follows: reduce the quantity of waste, from the production stage and then through recycling and reprocessing; sort waste according to its nature and activity level, so that it can be processed and packaged appropriately and the appropriate long-term management solution implemented; package waste as soon as it is produced to prevent any risk of dispersion; store waste, pending decay or the availability of an appropriate disposal solution; transport and place waste in repositories, keeping it away from Man and the environment by means of engineered or natural barriers for as long as required for the radioactivity to decay to an acceptable level. Regarding short-lived waste produced during operating and maintenance activities at power plants in service, EDF currently implements fully-integrated industrial management solutions which are constantly being optimised in conjunction with its industrial partners. (authors)

  17. Geothermal power plants principles, applications, case studies and environmental impact

    CERN Document Server

    DiPippo, Ronald

    2008-01-01

    Ron DiPippo, Professor Emeritus at the University of Massachusetts Dartmouth, is a world-regarded geothermal expert. This single resource covers all aspects of the utilization of geothermal energy for power generation from fundamental scientific and engineering principles. The thermodynamic basis for the design of geothermal power plants is at the heart of the book and readers are clearly guided on the process of designing and analysing the key types of geothermal energy conversion systems. Its practical emphasis is enhanced by the use of case studies from real plants that increase the reader'

  18. Los aspectos ambientales en el sistema de gestion de calidad de una empresa de elaborados carnicos

    National Research Council Canada - National Science Library

    Ulloa-Enriquez, Medardo Angel

    2011-01-01

    El objetivo del presente articulo es compartir una metodologia adecuada para la identificacion, priorizacion e incorporacion de los aspectos ambientales en el sistema de gestion de calidad certificado...

  19. A Business Case for Nuclear Plant Control Room Modernization

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, Ken [Idaho National Lab. (INL), Idaho Falls, ID (United States); Lawrie, Sean [Idaho National Lab. (INL), Idaho Falls, ID (United States); Niedermuller, Josef M. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-06-01

    This paper presents a generic business case for implementation of technology that supports Control Room Modernization (CRM). The analysis presented in two forms; 1) a standalone technology upgrade, and 2) a technology upgrade that is built upon and incremental to a prior business case created for Mobile Work Packages (MWP). The business case contends that advanced communication and networking and analytical technologies will allow NPP to conduct control room operations with improved focus by reducing human factors and redundant manpower, and therefore operate with fewer errors. While some labor savings can be harvested in terms of overtime, the majority of savings are demonstrated as reduced time to take the plant off line and bring back on line in support of outages. The benefits are quantified to a rough order of magnitude that provides directional guidance to NPPs that are interested in developing a similar business case. This business case focuses on modernization of the operator control room and does not consider a complete overhaul and modernization of a plants instrument and control systems. While operators may be considering such an investment at their plants, the sizable capital investment required is not likely supported by a cost/benefit analysis alone. More likely, it is driven by obsolescence and reliability issues, and requires consideration of mechanical condition of plant systems, capital depreciation, financing, relicensing and overall viability of the plant asset over a 20-year horizon in a competitive market. Prior studies [REF] have indicated that such a modernization of plant I&C systems, alone or as part of a larger modernization effort, can yield very significant reductions in O&M costs. However, the depth of research and analysis required to develop a meaningful business case for a plant modernization effort is well beyond the scope of this study. While CRM as considered in this study can be easily integrated as part of grander plant

  20. Sistemas de gestion de la innovacion estandarizados: un estudio de caso sobre la norma espanola UNE 166002:2006

    National Research Council Canada - National Science Library

    Mir, Moises; Casadesus, Marti

    2011-01-01

    .... El documento concluye con una discusion sobre la conveniencia y viabilidad de crear un estandar internacional de gestion de la innovacion y la aparicion de una nueva generacion de procesos de gestion...

  1. Implementacion de un sistema de gestion para una empresa distribuidora de productos farmaceuticos de ecuador. Un estudio exploratorio

    National Research Council Canada - National Science Library

    Alvarado Ramirez, Karla Maria; Suarez Barraza, Manuel Francisco

    2012-01-01

    La importancia del sistema de gestion en una organizacion consiste en desplegar una estrategia que se desarrolle mediante el sistema integrado de gestion con el fin de ejecutar, controlar e innovar...

  2. Geothermal power plants principles, applications, case studies and environmental impact

    CERN Document Server

    DiPippo, Ronald

    2012-01-01

    Now in its 3e, this single resource covers all aspects of the utilization of geothermal energy for power generation using fundamental scientific and engineering principles. Its practical emphasis is enhanced by the use of case studies from real plants that increase the reader's understanding of geothermal energy conversion and provide a unique compilation of hard-to-obtain data and experience. Important new chapters cover Hot Dry Rock, Enhanced Geothermal Systems, and Deep Hydrothermal Systems. New, international case studies provide practical, hands-on knowledge.

  3. Postface : La gestion des risques naturels est une dynamique

    NARCIS (Netherlands)

    Jaboyedoff, M.; Charriere, M.K.M.; Derron, M.H.; Nicolet, P.; Sudmeier-Rieux, K.

    2013-01-01

    Les risques sont contrôlés par de nombreux facteurs dont, en premier lieu, les dangers, exprimés par leur fréquence (aléa) à une intensité donnée, mais aussi relativement à un fonctionnement de la société. La gestion des risques, liés aux dangers naturels, implique de les évaluer, en premier lieu, e

  4. Nuclear Minerals Plants in Brazil-Case Studies

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    This paper presents the process flow sheet of the main nuclear industrial units in Brazil and discusses some solvent extraction technical support required for these plants. The Center for the Development of Nuclear Technology-CDTN has been investigating alternative ways to supply the nuclear industry in order to improve the industrial processes. Some case study examples are presented, Emulsion from Uranium has caused continuous changes in the composition of pregnant liquor mainly in the sulfate and chloride concentrations. After some water recirculation cycles, a decrease in the uranium extraction efficiency was noted which was followed by the formation of stable emulsion at the uranium extraction stage. Itataia Ufanium Developments were performed in a pilot plant for Itataia ore. This ore has the uranium mineral associated to the phosphate. The process consists of four main steps: 1) phosphate concentration, 2) chemical digestion of the concentrate to produce phosphoric acid with dissolved uranium, 3) uranium recovery, and 4) phosphoric acid purification by solvent extraction.

  5. Approches participatives et gestion décentralisée de la Forêt du ...

    African Journals Online (AJOL)

    sulaiman.adebowale

    25 août 2006 ... Le présent article2 repose sur une étude de cas relative à la gestion ... tels que le SOS Sahel, le Projet de gestion des ressources naturelles (PGRN), .... De cette période à la fin de la Deuxième République, le classement de ...

  6. Economical optimization model of MSW management; Un modello di ottimizzazione della gestione integrata dei rifiuti solidi urbani

    Energy Technology Data Exchange (ETDEWEB)

    Sparacino, M.; Camussi, M. [AEM SpA, Milan (Italy); Rapizzi, L. [AMSA, Unita' , Pianificazione Collaudi, Autorizzazioni, Milan (Italy)

    2001-02-01

    The Municipal Solid Waste (MSW) management policies involve several different technological, environmental, social and economical aspects that produce a complex problem that must be faced by means of quantitative analysis. In this paper is introduced the experience concerning the development of a mathematical model based on a mixed integer linear programming (MILP) technique with the aim of performing the economical optimisation of MSW management. The model, applied to a virtual city of one million of inhabitants, determines the plant choices and the collecting, transfer, transport, energy and materials recovery management choices; moreover the model manages the disposal and the sale on the market of the different kind of wastes, maximising the economical revenue compatibly with technical, physical, environmental constraints. The mathematical model has been developed utilising as software environment the programming algebraic language AMPL Plus and CPLEX 6.0 as solver of integer linear program. Evaluated on historical data the model furnished results that show its usefulness for what concern the MSW management and planning phases. [Italian] La gestione integrata dei rifiuti solidi urbani (RSU) coinvolge molteplici aspetti di tipo tecnologico, ambientale, sociale ed economico che ne fanno un problema complesso difficilmente affrontabile senza ricorrere a una strutturata rappresentazione quantitativa. Viene di seguito presentata l'esperienza di realizzazione di un modello basato sulla metodologia della programmazione lineare a interi (Mixed Integer Linear Programming - MILP) per l'ottimizzazione economica dell'intero ciclo di gestione degli RSU. Il modello, applicato ad una citta' virtuale di 1 milione di abitanti, individua le scelte impiantistiche, le condizioni e le modalita' operative di conferimento, raccolta, trasferimento, trasporto, recupero di materiali e di energia: inoltre gestisce lo smaltimento e la vendita sul mercato dei

  7. Decision-making guide for management of agriculture in the case of a nuclear accident; Guide d'aide a la decision pour la gestion du milieu agricole en cas d'accident nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Reales, N. [Institut de Radioprotection et de Surete Nucleaire (IRSN), 92 - Clamart (France); Fourrie, L. [Association De Coordination Technique Agricole, 75 - Paris (France); Quinio, C.; Grastilleur, Ch. [Ministere de l' Agriculture et de la Peche, 75 - Paris (France). Direction Generale de l' Alimentation

    2008-07-15

    For several years, agricultural and nuclear professionals in France have been working on how to manage the agricultural situation in the event of a nuclear accident. This work resulted in measures at both the national (Aube nuclear safety exercises in 2003, INEX3 in 2005) and international levels (EURATOM Programmes). Following on from the European FARMING (FP5) and EURANOS (FP6) works, ACTA', IRSN and six agricultural technical institutes which are specialized in agricultural production and processing network (arable crop [especially cereals, maize, pulses, potatoes and forage crops], fruits and vegetables, vine and wine, livestock farming [cattle, sheep, goats, pigs, poultry]), created a resource adapted to the French context: the Decision-aiding Tool for the Management of Agriculture in case of a Nuclear Accident. Devised for the Ministry of Agriculture services supporting state officials in a radiation emergency, this manual focuses on the early phase following the accident when the state of emergency would make discussion on countermeasures with a large stakeholder panel impossible. Supported by the Ministry of Agriculture and Fisheries and the French Nuclear Safety Authority, this project increased knowledge of post-accident management strategies and made an important contribution to the national think tank set up within the framework of the French Steering Committee for managing the post-event phase of a nuclear accident (CODIRPA). This article describes how the manual evolved throughout the project and the development of new resources. (authors)

  8. New methodologies for the integrated analysis of groundwater management. Altiplano water system case study (Murcia, SE Spain); Nuevas metodologias para el analisis integrado de la gestion del agua subterranea. Aplicacion al caso de estudio del Altiplano (Murcia, SE Espana)

    Energy Technology Data Exchange (ETDEWEB)

    Molina, J. L.; Garcia Arostegui, J. L.

    2009-07-01

    Integrated analysis of water management incorporates a great range of dimensions and aspects involved in the management of a water system. Lately, these kind of studies have become numerous because they allow getting a holistic knowledge and they also help managers with the decision making process. Nevertheless, there is not yet a general methodology for tackling this type of studies and there is a big opened field concerning the tools and techniques application. This paper establishes a methodology, which can be extrapolated to other case studies, and a practical procedure for the integrated analysis of groundwater management. This analysis starts with the identification and conceptualization of the hydric problematic. Then, a second phase is focused on the development of sectorial and detailed studies. The third phase is the building of the Decision Support System (DSS) based on the results from the sectorial studies. This research develops and proposes the application of a stochastic DSS based on Object-Oriented Bayesian Networks (OOBNs) that allows incorporating a huge range of aspects such as hydrogeological, socioeconomic and environmental, among others. The last phase of the procedure is the simulation of water management scenarios through the DSS. This allows comparing and quantifying the impacts generated by three water management interventions which have been proposed previously. The first scenario establishes the continuation of the current situation, the second scenario is made up of for several water management interventions which are the incoming of external water resources, the purchase of water rights and a reduction of the water demand; finally, the third scenario implies to reach the equilibrium in the aquifer water budgets. (Author) 19 refs.

  9. La gestion et la communication du patrimoine ethnographique

    OpenAIRE

    Guibal, Jean; Lazier, Isabelle

    2007-01-01

    Un siècle après la constitution des premières collections ethnographiques sur le domaine français, dix ans après la naissance de la mission du Patrimoine ethnologique du ministère de la Culture, les documents collectés et conservés dans les institutions les plus diverses se comptent par centaines de milliers. Leur accès reste pourtant difficile et pour le moins aléatoire. Les moyens affectés à l'organisation et à la gestion de ce patrimoine sont sans doute insuffisants ; plus gravement, peut-...

  10. Methodology of aging management in structures, systems and components of a nuclear power plant and its application to a pilot program in Laguna Verde; Metodologia de la gestion del envejecimiento en estructuras, sistemas y componentes de una central nuclear y su aplicacion a un programa piloto en Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Jarvio C, G. [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico); Fernandez S, G. [Comision Federal de Electricidad, Gerencia de Centrales Nucleoelectricas, Subgerencia de Ingenieria, Carretera Veracruz-Medellin Km. 7.5, Dos Bocas, 54270 Veracruz (Mexico)], e-mail: gfdezs@cfe.gob.mx

    2009-10-15

    From its origin the nuclear power plants confront the effects of time and of environment, giving as result the aging of its structures, systems and components. In this document the general process is described for the establishment of Aging Management Program developed by IAEA. Following the program methodology is guaranteed that a nuclear power plant manages the aging effects appropriately and to make decisions for its solution, assuring the characteristic functions of structures, systems and components of same nuclear power plant. On the other hand, the implantation of an aging management program constitutes the base for development of a licence renovation program, like it can be the specific case of the Central Laguna Verde Units 1 and 2. (Author)

  11. Processus de construction de la confiance et configuration de contrôle de gestion

    OpenAIRE

    Khlif, Wafa

    2000-01-01

    International audience; L'enrichissement de la compréhension du contrôle de gestion par une dimension plus “humaine” a conduit naturellement à l'émergence de concepts “qualitatifs”. La confiance fait partie de ces concepts ignorés dans un contexte instrumental. L'objectif de cette recherche est d'analyser le processus de construction de la confiance relativement aux éléments de contrôle de gestion. En premier lieu, ce travail discute le lien entre le contrôle de gestion et la confiance dans l...

  12. Pour une gestion efficiente de l'énergie au niveau communal : Guide pratique

    OpenAIRE

    Duquesne, Marianne; Hauglustaine, Jean-Marie; Teller, Jacques

    2008-01-01

    Ce guide pratique est destiné aux communes qui souhaitent mettre en place une politique intégrée en matière de gestion de l'énergie. Le guide est consacré à la gestion énergétique et à l’utilisation rationnelle de l’énergie (URE). Quatre thématiques y sont traitées : la mobilisation de moyens humains, la sensibilisation des acteurs, l’aménagement du territoire, la gestion du patrimoine.

  13. Sicurezza sul lavoro in un sistema di gestione integrata

    Directory of Open Access Journals (Sweden)

    A. Boccia

    2003-05-01

    Full Text Available

    Il Sistema di Gestione Integrata, può essere definito come un insieme di persone inserite in una struttura organizzativa, dove sono presenti delle risorse, delle procedure e delle responsabilità, con la finalità di raggiungere e mantenere nel tempo gli obiettivi di miglioramento definiti dall’azienda, in materia di qualità, efficienza ambientale, sicurezza degli impianti e salute dei lavoratori.

    Il sistema deve essere definito in modo da poter fornire un’adeguata dimostrazione dell’attuazione e del raggiungimento di tali obiettivi. L’esigenza e l’utilità per una Azienda dell’implementazione di un Sistema sicurezza integrato con quelli della qualità e della gestione ambientale riconosce le proprie radici nelle profonde trasformazioni culturali e gestionali imposte dalle normative emanate dalla Comunità Europea nell’ultimo decennio e recepite dai singoli governi.

    Questa filosofia, meglio conosciuta con la sigla ISO 9000, per quanto finora avulsa dallo scenario italiano in materia di sicurezza sul lavoro racchiude concetti molto importanti anche per chi deve applicare correttamente il D.Lgs. 626/94.

  14. Les ERP changent-ils le contrôle de gestion ?

    OpenAIRE

    Meyssonnier, François; Pourtier, Frédéric

    2005-01-01

    L'intégration de l'information de gestion dans le cadre d'ERP se généralise et le contrôle de gestion s'effectue maintenant la plupart du temps en environnement ERP dans les grandes entreprises. Un état de l'art est effectué relativement à l'impact des ERP aussi bien sur les concepts et les outils du contrôle de gestion que sur la fonction et le rôle des contrôleurs de gestion. La démarche de recherche, fondée sur dix études de cas dans une approche intermédiaire entre les monographies qualit...

  15. Discursos de gestion de recursos humanos presentes en las iniciativas y normas de responsabilidad social

    National Research Council Canada - National Science Library

    Gaete Quezada, Ricardo Andres

    2010-01-01

    ...), el Libro Verde, las Directrices OCDE, SA8000 y la Norma SGE 21, para identificar las referencias discursivas relacionadas con el concepto de gestion de recursos humanos desde la perspectiva sistemica...

  16. La practica docente en contabilidad de gestion; una aproximacion a partir de las trayectorias

    National Research Council Canada - National Science Library

    Leon-Paime, Edison Fredy; Ardila-Trujillo, Maria Emma

    2013-01-01

    El presente documento tiene como objetivo hacer una aproximacion comprensiva al papel que tienen las trayectorias de los docentes de contabilidad de gestion en la definicion de la practica docente que despliegan...

  17. Aproximacion general para el analisis de tendencias en la contabilidad de gestion en Iberoamerica

    National Research Council Canada - National Science Library

    Salgado-Castillo, Jorge Andres

    2010-01-01

    La variedad de enfoques y de corrientes teoricas sobre los cuales se ha basado la Contabilidad de Gestion ha presupuesto asunciones hegemonicas, asociadas al funcionalismo y asunciones de visiones mas...

  18. Sistema de gestion de no conformidades para los productos comerciales del centro de inmunologia molecular

    National Research Council Canada - National Science Library

    Romero Ruiz, Yuliet; Fontanet Tamayo, Lizette; Delgado Fernandez, Mercedes

    2011-01-01

    Este articulo describe el diseno y la implementacion de un sistema de gestion para las no conformidades generadas durante la fabricacion y la distribucion de los productos biotecnologicos comerciales...

  19. Liderazgo directivo en la gestion escolar desde el enfoque politico de la escuela

    National Research Council Canada - National Science Library

    Contreras Paredes, Blanca Margarita

    2009-01-01

    Esta investigacion presenta el analisis de la relacion entre el estilo de liderazgo de una directora y la participacion de docentes y alumnos en la gestion escolar, desde el enfoque politico de la escuela y el liderazgo...

  20. El Estado en la gestion del conflicto: la reforma del proceso penal en Latinoamerica

    National Research Council Canada - National Science Library

    Mercado Maldonado, Asael; Benavente Chorres, Hesbert

    2010-01-01

    ... facultades al juez, pasa al paradigma del sistema de justicia penal como marco de discusion y gestion de un conflicto de intereses surgido a consecuencia de la comision de un delito, donde las partes, como...

  1. Historia, historiografia y gestion cultural del patrimonio vitivinicola de Mendoza, Argentina

    National Research Council Canada - National Science Library

    Moretti-Baldin, Graciela

    2008-01-01

    ...; el historiografico, presentando estudios representativos sobre el tema; y, finalmente, el de la gestion, analizando los programas y actividades que tanto instituciones del Estado como privadas desarrollan para poner en valor los bienes tangibles e intangibles del patrimonio del vino.

  2. Les ERP changent-ils le contrôle de gestion ?

    OpenAIRE

    Meyssonnier, François; Pourtier, Frédéric

    2005-01-01

    L'intégration de l'information de gestion dans le cadre d'ERP se généralise et le contrôle de gestion s'effectue maintenant la plupart du temps en environnement ERP dans les grandes entreprises. Un état de l'art est effectué relativement à l'impact des ERP aussi bien sur les concepts et les outils du contrôle de gestion que sur la fonction et le rôle des contrôleurs de gestion. La démarche de recherche, fondée sur dix études de cas dans une approche intermédiaire entre les monographies qualit...

  3. Alarm management in gas pipeline plant: a case study

    Energy Technology Data Exchange (ETDEWEB)

    Araujo, Juliano; Lima, Marcelo; Leitao, Gustavo; Guedes, Luiz Affonso [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil); Branco, Nicolau; Coelho, Robson; Elias, Gustavo Passos; Nunes, Marcelo [Transportadora Brasileira Gasoduto Bolivia-Brasil (TBG), Rio de Janeiro, RJ (Brazil)

    2009-07-01

    In order to improve the requirements of industrial processes, many decision support systems have been introduced in recent years. In this context, the alarm management systems have great relevance. On the other hand, the informatics revolution allowed a great increase of information concerning the operation of the industrial processes. Currently, process operators handle an excessive number of about 1.500 alarms per day. Thus, this overdose of information implies in the discredit of alarms. Then, in order to improve the operation activities of industrial processes, it is mandatory to incorporate procedures to evaluate and rationalize alarms. Since the EMMUA191 Standard is the reference guide to alarm management, but it does not specify how to execute an alarm management procedure, in this paper, a systematic procedure to evaluate alarms configurations in industrial processes is proposed. This procedure is in line with EMMUA191 and is composed by the following steps: to use statistics analyses to identify problematic alarms, such as occurrence, intermittency, correlation, and flooding calculation; to indicate problematic alarm group; and to propose a set of actions to be implemented. To validate our proposal, we present a case study in a gas pipeline plant using the BR-AlarmExpert software. (author)

  4. A Symbiosis Between Instructional Systems Design and Project Management / Une symbiose de la conception de matériel pédagogique et de la gestion de projet

    Directory of Open Access Journals (Sweden)

    Cheng-Chang (Sam Pan

    2012-02-01

    Full Text Available This study is intended to explore a complementary relationship between instructional systems design (ISD and project management in an attempt to build a plausible case for integrating project management as a distinct course in the core of the graduate instructional systems design programs. It is argued that ISD and project management should form a symbiosis from a curriculum perspective, in a hope for the prepared instructional designers to create values for customers. An integrated view of ISD and project management is proposed, using three concepts of project management as a reasonable bridge for the integration. Challenges for the proposed view in this position paper are also stated. Cette étude explore la complémentarité de la conception de matériel pédagogique et de la gestion de projets en vue de justifier l’intégration de la gestion de projets à titre de cours distinct au cœur des programmes des cycles supérieurs en conception de matériel pédagogique. L’étude fait valoir l’intérêt d’une symbiose de la conception de matériel pédagogique et de la gestion de projets du point de vue du programme d’études, afin de préparer les concepteurs pédagogiques formés à créer une plus-value pour les clients. Elle propose une vision intégrée de la conception de matériel pédagogique et de la gestion de projets fondée sur trois concepts de la gestion de projets favorisant une telle intégration. Les défis de la vision proposée dans cet exposé de position sont également énoncés.

  5. Management of purines; Gestion integral de purines

    Energy Technology Data Exchange (ETDEWEB)

    Soria, J. M.

    2004-07-01

    Waste in the shape of pig excrement is causing greatest concern in Spain due to the large quantities produced and its high toxic level (up to one hundred times greater than that of water); the problem being even more serious in regions with large areas devoted to intensive pig farming. It is difficult to say exactly how much excrement is generated, particularly if you take into account the fact that it depends on the animal's age, the type and means of feed, and even the time of the year. In any case, domestic production is estimated at between 100 and 180 million litres a day, a huge amount if you take into account that you are dealing with waste whose unauthorised dumping is strictly forbidden by law and heavily fined. We know of many different systems used for purification purpose. None of these systems has so far proved to be really effective. (Author)

  6. Performance of small water treatment plants: The case study of Mutshedzi Water Treatment Plant

    Science.gov (United States)

    Makungo, R.; Odiyo, J. O.; Tshidzumba, N.

    The performance of small water treatment plants (SWTPs) was evaluated using Mutshedzi WTP as a case study. The majority of SWTPs in South Africa (SA) that supply water to rural villages face problems of cost recovery, water wastages, limited size and semi-skilled labour. The raw and final water quality analyses and their compliance were used to assess the performance of the Mutshedzi WTP. Electrical conductivity (EC), pН and turbidity were measured in the field using a portable multimeter and a turbidity meter respectively. Atomic Absorption Spectrometry and Ion Chromatography were used to analyse metals and non-metals respectively. The results were compared with the Department of Water Affairs (DWA) guidelines for domestic use. The turbidity levels partially exceeded the recommended guidelines for domestic water use of 1 NTU. The concentrations of chemical parameters in final water were within the DWA guidelines for domestic water use except for fluoride, which exceeded the maximum allowable guideline of 1.5 mg/L in August 2009. Mutshedzi WTP had computed compliance for raw and final water analyses ranging from 79% to 93% and 86% to 93% throughout the sampling period, respectively. The results from earlier studies showed that the microbiological quality of final water in Mutshedzi WTP complied with the recommended guidelines, eliminating the slight chance of adverse aesthetic effects and infectious disease transmission associated with the turbidity values between 1 and 5 NTU. The study concluded that Mutshedzi WTP, though moving towards compliance, is still not producing adequate quality of water. Other studies also indicated that the quantity of water produced from Mutshedzi WTP was inadequate. The findings of the study indicate that lack of monitoring of quantity of water supplied to each village, dosage of treatment chemicals, the treatment capacity of the WTP and monitoring the quality of water treated are some of the factors that limit the performance of

  7. Consumers' Attitudes towards Edible Wild Plants: A Case Study of Noto Peninsula, Ishikawa Prefecture, Japan

    OpenAIRE

    Bixia Chen; Zhenmian Qiu

    2012-01-01

    This study explored the rural revitalizing strategy in FAO's Globally Important Agricultural Heritage System (GIAHS) site in Noto Peninsula, Ishikawa Prefecture of Japan, using a case study of edible wild plants. This study assessed the current and possible future utilization of edible wild plants as one important NTFP by clarifying the attitudes of consumers and exploring the challenges of harvesting edible wild plants. Traditional ecological knowledge associated with edible wild plants and ...

  8. Gestion de versions de formats avec Camlp4

    OpenAIRE

    2007-01-01

    National audience; La gestion des changements de formats est un problème crucial de l'informatique : encore aujourd'hui, peu d'applications sont capables de lire des données sauvées dans un format d'une version antérieure ; en distribué, les versions de programmes devant communiquer entre eux sont de plus en plus hétérogènes, en particuliers dans les systèmes pair-à-pair. Dans ce papier, nous présentons une extension de syntaxe d'Objective-Caml en Camlp4 permettant de gérer plus efficacement ...

  9. Dictionnaire d'analyse et de gestion des risques

    CERN Document Server

    Desroches, Alain

    2005-01-01

    Ce dictionnaire présente les principaux termes utilisés en analyse et gestion des risques, pour tous les secteurs d'activité industrielle ou de service. Il permet de clarifier des terminologies existantes présentant des variations plus ou moins importantes et parfois des contradictions de sens. Il propose : premièrement, la définition des auteurs, définition correspondant à l'usage le plus courant du terme , deuxièmement, les différences avec les terminologies existantes (essentiellement des normes) , troisièmement, des compléments à la définition, lorsque cela semble nécessaire et notamment lorsqu'il est important de préciser le contexte d'utilisation du terme , en dernier lieu, des exemples pratiques d'application, lorsque cela peut apporter un éclairage complémentaire pertinent.

  10. An extreme case of plant-insect codiversification

    DEFF Research Database (Denmark)

    Cruaud, Astrid; Rønsted, Nina; Chanterasuwan, Bhanumas;

    2012-01-01

    It is thought that speciation in phytophagous insects is often due to colonization of novel host plants, because radiations of plant and insect lineages are typically asynchronous. Recent phylogenetic comparisons have supported this model of diversification for both insect herbivores and speciali...

  11. Gli Ungulati in Italia: status, gestione e ricerca scientifica

    Directory of Open Access Journals (Sweden)

    Marco Apollonio

    2004-06-01

    managers in public administrations is suggested, as a further step in the development of a proper management of ungulates and other wildlife. Scientific research on ungulates in Italy was, in the last decade, quite uneven both in the species and in the disciplines chosen. There is a clear opportunistic approach to subjects, that often has no link with the real necessities of wildlife management. The development of long term studies is suggested, together with a more efficient coordination among scientist in the choice of the research subjects. Last but not least a more efficient founding mechanisms is needed in order to avoid money waste and to promote serious research programmes. Riassunto Gli Ungulati nel nostro Paese hanno proseguito, nell'ultimo decennio, l'espansione dei loro areali già iniziata nel decennio precedente e, per quanto i dati disponibili possono testimoniare, della loro consistenza. Tale tendenza è particolarmente chiara nel Centro-Nord, mentre nell'area meridionale il processo di sviluppo di popolamenti di ungulati delle diverse specie è rallentato se non assente, sia pure con notevoli eccezioni come la Sardegna dove, grazie ad un'opportuna politica di reintroduzioni, il Cervo sardo (Cervus elaphus corsicanus sta tornando nelle quattro province dell'isola. In questo quadro generale deve essere ricordato il ruolo rilevante dell'aumento degli ungulati nel favorire l'espansione dei grandi predatori, in particolare del Lupo (Canis lupus in ampi settori del paese. La gestione degli ungulati ha anch'essa subito una positiva evoluzione durante l'ultimo decennio sebbene persistano forti differenze fra Centro-Nord e Sud. Reintroduzioni di molte specie, effettuate con procedure nel complesso più corrette di quelle eseguite nel passato, hanno contribuito a colmare le lacune della distribuzione naturale di molte specie. Le statistiche d'abbattimento disponibili hanno dimensioni che suggeriscono un'accresciuta importanza degli

  12. Assessing ant seed predation in threatened plants: a case study

    Science.gov (United States)

    Albert, María José; Escudero, Adrián; Iriondo, José María

    2005-11-01

    Erodium paularense is a threatened plant species that is subject to seed predation by the granivorous ant Messor capitatus. In this paper we assessed the intensity and pattern of ant seed predation and looked for possible adaptive strategies at the seed and plant levels to cope with this predation. Seed predation was estimated in 1997 and 1998 at the population level by comparing total seed production and ant consumption, assessed by counting seed hulls in refuse piles. According to this method, ant seed predation ranged between 18% and 28%. A more detailed and direct assessment conducted in 1997 raised this estimate to 43%. In this assessment spatial and temporal patterns of seed predation by ants were studied by mapping all nest entrances in the studied area and marking the mature fruits of 109 reproductive plants with a specific colour code throughout the seed dispersal period. Intact fruit coats were later recovered from the refuse piles, and their mother plants and time of dispersal were identified. Seeds dispersed at the end of the dispersal period had a greater probability of escaping from ant seed predation. Similarly, in plants with late dispersal a greater percentage of seeds escaped from ant predation. Optimum dispersal time coincided with the maximum activity of granivorous ants because, at this time, ants focused their harvest on other plant species of the community. It was also observed that within-individual seed dispersal asynchrony minimised seed predation. From a conservation perspective, results show that the granivorous ant-plant interaction cannot be assessed in isolation and that the intensity of its effects basically depends on the seed dispersal pattern of the other members of the plant community. Furthermore, this threat must be assessed by considering the overall situation of the target population. Thus, in E. paularense, the strong limitation of safe-sites for seedling establishment reduces the importance of seed predation.

  13. Integrated Solar-Thermal Power Plants: TPP Bitola Case Study

    OpenAIRE

    Cingoski, Vlatko; Gelev, Saso; Stefanov, Goce; Sarac, Vasilija

    2016-01-01

    The potentials for usage of the solar energy as a renewable energy source, whether by its conversion only into heat, indirect conversion into electricity using a prior generated thermal energy, or direct conversion of solar energy into electric energy using the photoelectric effect, are enormous. This paper presents a study for the development of an integrated solar-thermal power plant (ISTPP) for repowering the existing goal-fired TPP Bitola. In the proposed plant, firstly sol...

  14. Reports by the Parliamentary Office for scientific and technological assessments. Friday, May 13, 2011. Crisis management in the case of nuclear accident; Comptes rendus de l' Office Parlementaire d'Evaluation des Choix Scientifiques et Technologiques. Vendredi 13 mai 2011. Gestion de crise en cas d'accident nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-05-15

    During this meeting held after a visit of the Gravelines nuclear power plant, risks of flooding and industrial risks present in the region are evoked, as well as civil security planning and organization, evacuation plans, and health department implication in emergency plans. In a second part, the discussion addresses communication issues in case of nuclear crisis. The third part addresses the ORSEC plan and discusses the decision and expertise chain it involves

  15. Efficient Heat Use from Biogas CHP Plants. Case Studies from Biogas Plants in Latvia

    OpenAIRE

    Dzene, Ilze; Slotiņa, Lāsma

    2013-01-01

    This paper is focusing on efficient heat use from biogas plants. It gives an overview about various biogas heat use options and specifically addresses biogas heat use market in Latvia. In the end three examples from typical agricultural biogas plants in Latvia and their heat use plans are described.

  16. Acquis et défis de la gestion participative des ressources forestières : Cas du Parc National d’Ifrane

    Directory of Open Access Journals (Sweden)

    Larbi Aziz

    2014-03-01

    Full Text Available Les ressources forestières constituent un capital naturel pour l’approvisionnement des populations locales, en bois, en plantes aromatiques et médicinales et en parcours pour le pâturage. Ces multiples usages ont conduit ces populations à mettre en place une gestion communautaire et très ancienne de ces ressources. Depuis 2002, l’administration des Eaux et Forêts a mis en place une politique forestière basée sur une stratégie de gestion participative. Nous avons étudié les formes de gestion communautaire et par l’administration des ressources forestières dans quatre communes rurales du Parc National d’Ifrane. L’administration organise une mise en défens, fondée sur l’implication et la responsabilisation des populations usagères, organisée en associations sylvo-pastorales ou en coopératives forestières, à travers une incitation financière sous forme de compensation. Ce mécanisme a permis d’obtenir un certain nombre d’acquis : conscientisation des populations vis-à-vis de la mise en défens, investissement des sommes de la compensation dans des projets de développement local, etc. Cependant, ce mécanisme présente certaines fragilités, notamment un risque de non durabilité des mises en défens (du fait que celles-ci ne sont financées que par le budget de l’Etat et un contrôle social plus faible dans les nouvelles associations qui n’ont pas la même légitimité pour prendre des décisions au nom du collectif que les anciennes jmaa.

  17. Development of plant maintenance management system (pmms): a case study

    Science.gov (United States)

    Che Azhar, N. A.; Mansor, M. A.

    2013-12-01

    In large plant industry, it is not easy to maintain machine performance without using any method such as checklist system. Manual checklist is a common maintenance checklist used in industry. All machine, equipment and parts that need to be checked will be written down for the employee to do maintenance checks. Converting the manual checklist to the Plant Maintenance Management System (PMMS) can improve the way of employees work and make plant management easier. Therefore, a new system was designed to maintain the equipment so that the activities are more efficient and cost effective. The system consists of three frames that connect to each other. The frames divide to section, equipment and checklist. This system also builds to prevent data from arbitrarily changes. Only certain officers or staffs are permitted to make modifications to data. Using this system, a company can make the office environment a paperless environment.

  18. Investment decisions under uncertainties: a case of nuclear power plants

    NARCIS (Netherlands)

    Jain, S.

    2014-01-01

    This thesis discusses the role of flexibility of decisions when investing in projects that are affected by economic uncertainties. It uses the theory of real options to value such investment decisions. The thesis focuses on investment decisions related to nuclear power plants, which usually are aff

  19. Gestion des finances publiques : une contribution à la bonne gouvernance financière

    OpenAIRE

    Leiderer, Stefan; Wolff, Peter

    2009-01-01

    Introduction : la gestion des finances publiques comme élément de la bonne gouvernance financière L’expression gestion des finances publiques (GFP) sert depuis quelques années de cadre à un débat animé sur les capacités et la réforme des finances publiques dans les pays en développement. L’importance de la GFP découle du rôle central que jouent les finances publiques dans un Etat démocratique désireux de se développer : une politique budgétaire axée sur des objectifs et une gestion budgétaire...

  20. Pratique de la gestion industrielle organisation, méthodes et outils

    CERN Document Server

    Javel, Georges

    2003-01-01

    Avec l'augmentation des échanges et des flux de marchandises, la gestion industrielle c'est à dire la gestion de production et ses fonctions connexes : maintenance, logistique, qualité est devenue une fonction critique dans l'entreprise industrielle, qu'il importe de bien maîtriser. Cet ouvrage constitue le vademecum indispensable du directeur industriel et du responsable production. Il présente tous les concepts de la gestion industrielle de façon très appliquée, en décrivant concrètement les méthodes et les outils à mettre en oeuvre au quotidien pour assurer les performances de l’entreprise.

  1. Gestion des finances publiques : une contribution à la bonne gouvernance financière

    OpenAIRE

    Leiderer, Stefan; Wolff, Peter

    2009-01-01

    Introduction : la gestion des finances publiques comme élément de la bonne gouvernance financière L’expression gestion des finances publiques (GFP) sert depuis quelques années de cadre à un débat animé sur les capacités et la réforme des finances publiques dans les pays en développement. L’importance de la GFP découle du rôle central que jouent les finances publiques dans un Etat démocratique désireux de se développer : une politique budgétaire axée sur des objectifs et une gestion budgétaire...

  2. Le contrôle de gestion environnementale d'une entreprise

    OpenAIRE

    Marquet-Pondeville, Sophie

    2001-01-01

    Dans cette recherche, nous étudions comment s’opère le contrôle de gestion environnementale. Cette problématique est abordée dans une perspective contingente et nous proposons un modèle théorique qui met en évidence l’impact de certaines variables sur les systèmes de contrôle de la gestion environnementale. Certains liens présents dans ce modèle sont discutés à travers une étude de cas.

  3. Conception et développement d’application de gestion d’emploi du temps

    OpenAIRE

    AYAD, Soriya; BENMANSOUR, Fatima Zohra

    2014-01-01

    Ce modeste travail s’intéresse à la conception et la réalisation d’un système de gestion d’emploi du temps pour l’université, les objectifs principaux de ce système est de faciliter l’établissement des emplois du temps au niveau des départements, permet la création et la modification des emplois du temps ainsi la gestion de quelque conflit qui peuvent exister (conflit d’enseignant, salle). This modest work focuses on the design and implementation of a management system sched...

  4. Apport de l’ethnicité à la culture en sciences de gestion

    OpenAIRE

    Vassili Joannides

    2011-01-01

    (VF)Cet article part des critiques de Bhimani (1999), Baskerville (2003) et Hofstede (2003) adressées à l’utilisation du modèle développé par Hofstede (1980, 2001) pour appréhender la culture. Ces critiques soulignent qu’étudier l’ethnicité dans un cadre plus souple permettrait une compréhension plus fine des outils et pratiques de gestion. Ainsi, cet article vise à évaluer les apports de l’ethnicité aux sciences de gestion via l’analyse de vingt publications en contrôle. Ses apports sont : u...

  5. LA COMPTABILITÉ DE GESTION : OUTIL D'INFORMATION OU DISPOSITIF DE CONNAISSANCE ? LA PERCEPTION DES MANAGERS

    OpenAIRE

    Cheffi, Walid; Beldi, Adel

    2005-01-01

    International audience; Cette communication explore les rôles de la comptabilité de gestion pour les managers. Elle repose sur l'analyse de contenu de dix-huit entretiens semi-directifs réalisés auprès de cadres dirigeants de grandes entreprises en France. Les résultats de l'analyse des données qualitatives montrent la co-présence des trois rôles de la comptabilité de gestion (outil d'information, outil de relations et dispositif de connaissance). Une évaluation quantitative de l'importance d...

  6. Le contrôle de gestion environnementale d'une entreprise

    OpenAIRE

    Marquet-Pondeville, Sophie

    2001-01-01

    Dans cette recherche, nous étudions comment s’opère le contrôle de gestion environnementale. Cette problématique est abordée dans une perspective contingente et nous proposons un modèle théorique qui met en évidence l’impact de certaines variables sur les systèmes de contrôle de la gestion environnementale. Certains liens présents dans ce modèle sont discutés à travers une étude de cas.

  7. Plant applications of online corrosion monitoring: CO2 capture amine plant case study

    NARCIS (Netherlands)

    Kane, R.D.; Srinivasan, S.; Khakharia, P.M.; Goetheer, E.L.V.; Mertens, J.; Vroey, S. de

    2015-01-01

    Over the past several years, there has been a significant effort to bring corrosion monitoring into the realm of online, real-time management with plant process control technology. As part of this new direction in corrosion monitoring, corrosion data (e.g. information on corrosion rate, measured Ste

  8. Plant applications of online corrosion monitoring: CO2 capture amine plant case study

    NARCIS (Netherlands)

    Kane, R.D.; Srinivasan, S.; Khakharia, P.M.; Goetheer, E.L.V.; Mertens, J.; Vroey, S. de

    2015-01-01

    Over the past several years, there has been a significant effort to bring corrosion monitoring into the realm of online, real-time management with plant process control technology. As part of this new direction in corrosion monitoring, corrosion data (e.g. information on corrosion rate, measured

  9. Implementing Case Studies in a Plant Pathology Course: Impact on Student Learning and Engagement

    Science.gov (United States)

    Yadav, Aman; Beckerman, Janna L.

    2009-01-01

    Case studies have been used in undergraduate science education as a way to develop students' critical thinking and problem-solving skills. However, little empirical evidence exists on whether this teaching method is having the desired impact on students in plant pathology courses. This study evaluated the influence of the case teaching method on…

  10. Dynamics of Postcombustion CO2 Capture Plants: Modeling, Validation, and Case Study.

    Science.gov (United States)

    van de Haar, Adam; Trapp, Carsten; Wellner, Kai; de Kler, Robert; Schmitz, Gerhard; Colonna, Piero

    2017-02-22

    The capture of CO2 from power plant flue gases provides an opportunity to mitigate emissions that are harmful to the global climate. While the process of CO2 capture using an aqueous amine solution is well-known from experience in other technical sectors (e.g., acid gas removal in the gas processing industry), its operation combined with a power plant still needs investigation because in this case, the interaction with power plants that are increasingly operated dynamically poses control challenges. This article presents the dynamic modeling of CO2 capture plants followed by a detailed validation using transient measurements recorded from the pilot plant operated at the Maasvlakte power station in the Netherlands. The model predictions are in good agreement with the experimental data related to the transient changes of the main process variables such as flow rate, CO2 concentrations, temperatures, and solvent loading. The validated model was used to study the effects of fast power plant transients on the capture plant operation. A relevant result of this work is that an integrated CO2 capture plant might enable more dynamic operation of retrofitted fossil fuel power plants because the large amount of steam needed by the capture process can be diverted rapidly to and from the power plant.

  11. Plant response strategies to stress and disturbance: the case of aquatic plants

    Indian Academy of Sciences (India)

    Michèle Trémolières

    2004-12-01

    The environmental factors controlling the establishment and development of plants in different ecosystems are of two types, stress and disturbance. The effects of stress or disturbance on aquatic systems are discussed in relation to the following questions: Can we predict the state and rate of recolonization after a disturbance? What are the strategies of recolonization developed by plants? How high is the resilience of a disturbed system? Two theories, the intermediate disturbance hypothesis, and the patch dynamics concept proposed to predict the composition, structure and dynamics of plants due to physical-chemical factors, were tested on two scales, that of communities and that of species, within two alluvial floodplains (the Rhine and the Rhône systems in France). With regard to the change of community on a larger scale (i.e. the whole network of the cut-off channels in the floodplain), large gradients of connection and disturbance induce high diversities within communities. Moreover, the highest flood disturbance induces a higher species richness and the occurrence of a particular species. The change in species is analysed using biological traits (morphological, reproductive or physiological). In the floodplain of the river Rhône, the response of plants corresponds well to theory, i.e. that habitats with an intermediate disturbance are richer than more or less disturbed habitats. So we can predict, through the biological traits, the functioning of a habitat. The last remaining question is that of the resilience of the system, which can be discussed in terms of species competition and the risk of biological invasion after an opening of habitat.

  12. Logistique, chaîne logistique et SCM dans les revues francophones de gestion : quelle dimension stratégique?

    OpenAIRE

    Belin-Munier, Christine

    2014-01-01

    International audience; L’objectif de cet article est de cerner le caractère stratégique de la logistique et du Supply Chain Management (SCM) tel qu’il apparaît dans les revues généralistes de gestion, afin d’avoir une vision de la nature de la diffusion de la connaissance logistique dans les sciences de gestion. Il s’appuie sur l’analyse de 62 articles parus entre 2001 et 2011 dans quatre revues de la base Cairn, accessible en ligne dans la plupart des universités : Gestion, Revue Française ...

  13. Nuove Tecnologie per il Monitoraggio e la Gestione dei giardini storici

    Directory of Open Access Journals (Sweden)

    Maurizio Romani

    2012-07-01

    Full Text Available ItSotto la spinta dei cambiamenti socio-economici e di significativi progressi tecnici, la gestione dei giardini storici e degli spazi verdi in genere, sta vivendo un periodo di forte cambiamento ed evoluzione. Nel tentativo di razionalizzare l’uso delle risorse naturali e umane, nascono nuovi servizi che fanno intravedere la necessità di creare specifiche figure professionali, in grado di colmare in tempi rapidi il divario tra le potenzialità applicative offerte dalle nuove tecnologie e le diverse realtà operative, ancora legate all’uso di pratiche e metodologie tradizionali. Anche nel settore dei giardini e dei parchi storici è giunto il momento di approfondire i temi relativi alla loro conservazione e valorizzazione, che oggi sono strettamente legati a una concreta sostenibilità economica e ambientale delle pratiche di gestione e di promozione. Queste considerazioni sono state alla base di una serie di iniziative e di progetti promossi a livello nazionale ed europeo, che, grazie all’integrazione di strumenti ICT, SMART-Sensors e IA, in alcuni casi si sono concretizzati nella realizzazione di metodologie e soluzioni di grande interesse operativo.Le procedure e i criteri presentati in questo articolo sono il risultato dell’attività di ricerca e trasferimento tecnologico condotta dal CNR-IBIMET di Firenze negli ultimi dieci anni. Già nella sua versione prototipale, il sistema proposto mostra tutte le sue potenzialità di monitoraggio e supporto alle attività gestionali e manutentive degli spazi verdi, aprendo la strada a una progressiva automazione e virtualizzazione delle procedure (creazione di scenari, elementi essenziali per la successiva valorizzazione e promozione del bene a livello sociale e culturale.In particolare, oltre allo schema logico del sistema, si discutono alcune tra le funzioni di monitoraggio di maggiore interesse (disponibilità idrica, stato fitosanitario e fenologia, evidenziando quali siano i vantaggi

  14. Implementation of PV plants in Spain: A case study

    Energy Technology Data Exchange (ETDEWEB)

    Diez-Mediavilla, M.; Alonso-Tristan, C. [Dpto. Ingenieria Electromecanica, Escuela Politecnica Superior. Universidad de Burgos, Avda. Cantabria s/n, 09006 Burgos (Spain); Rodriguez-Amigo, M.C.; Garcia-Calderon, T. [Dpto. Matematicas y Computacion Escuela Politecnica Superior. Universidad de Burgos, Avda. Cantabria s/n, 09006 Burgos (Spain)

    2010-05-15

    The implementation process of a photovoltaic system and its connection to the national grid in Spain is examined from an economic, an administrative and a legal standpoint. In the first place, this case study describes the solar farm, and it goes on to examine the economic aspects of electricity production, its associated costs, and relevant grants and financial subsidies. Finally, problems related to the administration of the project and the issuing of permits by local and regional authorities are discussed. (author)

  15. Marginal costs of water savings from cooling system retrofits: a case study for Texas power plants

    Science.gov (United States)

    Loew, Aviva; Jaramillo, Paulina; Zhai, Haibo

    2016-10-01

    The water demands of power plant cooling systems may strain water supply and make power generation vulnerable to water scarcity. Cooling systems range in their rates of water use, capital investment, and annual costs. Using Texas as a case study, we examined the cost of retrofitting existing coal and natural gas combined-cycle (NGCC) power plants with alternative cooling systems, either wet recirculating towers or air-cooled condensers for dry cooling. We applied a power plant assessment tool to model existing power plants in terms of their key plant attributes and site-specific meteorological conditions and then estimated operation characteristics of retrofitted plants and retrofit costs. We determined the anticipated annual reductions in water withdrawals and the cost-per-gallon of water saved by retrofits in both deterministic and probabilistic forms. The results demonstrate that replacing once-through cooling at coal-fired power plants with wet recirculating towers has the lowest cost per reduced water withdrawals, on average. The average marginal cost of water withdrawal savings for dry-cooling retrofits at coal-fired plants is approximately 0.68 cents per gallon, while the marginal recirculating retrofit cost is 0.008 cents per gallon. For NGCC plants, the average marginal costs of water withdrawal savings for dry-cooling and recirculating towers are 1.78 and 0.037 cents per gallon, respectively.

  16. La gestion forestière communautaire dans le sud-ouest de Madagascar

    DEFF Research Database (Denmark)

    Casse, Thorkil; Milhøj, Anders

    2012-01-01

    La principale conclusion est que le modèle de transfert de la gestion forestière vers les communautés locales malgaches, du moins dans cette partie du pays, n'a pas modifié significativement l'attitude des villageois vis-à-vis de la conservation de la forêt....

  17. Comptabilité de gestion : Coûts/contrôle

    OpenAIRE

    Burlaud, Alain; Simon, Claude,

    2003-01-01

    International audience; Présentation de la comptabilité de gestion dans son contexte organisationnel et économique pour la prise de décisions : - politique des prix ; - mise sous tension de l'organisation ; - contextes particuliers : organisations publiques, banques, entreprises en réseau.

  18. Una propuesta para trabajar en las escuelas con internet: gestion del conocimiento y comunidades de aprendizaje

    National Research Council Canada - National Science Library

    Arancibia Herrera, Marcelo

    2004-01-01

    ..., la conformacion de comunidades de aprendizaje se propone como modalidad organizativa ideal para llevar a cabo la innovacion. Palabras clave: internet, informatica educativa, gestion del conocimiento, comunidades de aprendizaje. A proposal for working with Internet in schools knowledge management and learning communities Abstract From a critical view a prop...

  19. Comptabilité de gestion : Coûts/contrôle

    OpenAIRE

    Alain BURLAUD; Simon, Claude,

    2003-01-01

    International audience; Présentation de la comptabilité de gestion dans son contexte organisationnel et économique pour la prise de décisions : - politique des prix ; - mise sous tension de l'organisation ; - contextes particuliers : organisations publiques, banques, entreprises en réseau.

  20. Test Cases for Wind Power Plant Dynamic Models on Real-Time Digital Simulator: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Singh, M.; Muljadi, E.; Gevorgian, V.

    2012-06-01

    The objective of this paper is to present test cases for wind turbine generator and wind power plant models commonly used during commissioning of wind power plants to ensure grid integration compatibility. In this paper, different types of wind power plant models based on the Western Electricity Coordinating Council Wind Generator Modeling Group's standardization efforts are implemented on a real-time digital simulator, and different test cases are used to gauge their grid integration capability. The low-voltage ride through and reactive power support capability and limitations of wind turbine generators under different grid conditions are explored. Several types of transient events (e.g., symmetrical and unsymmetrical faults, frequency dips) are included in the test cases. The differences in responses from different types of wind turbine are discussed in detail.

  1. Consumers' Attitudes towards Edible Wild Plants: A Case Study of Noto Peninsula, Ishikawa Prefecture, Japan

    Directory of Open Access Journals (Sweden)

    Bixia Chen

    2012-01-01

    Full Text Available This study explored the rural revitalizing strategy in FAO's Globally Important Agricultural Heritage System (GIAHS site in Noto Peninsula, Ishikawa Prefecture of Japan, using a case study of edible wild plants. This study assessed the current and possible future utilization of edible wild plants as one important NTFP by clarifying the attitudes of consumers and exploring the challenges of harvesting edible wild plants. Traditional ecological knowledge associated with edible wild plants and the related attitudes of consumers towards wild plants was documented. A questionnaire survey found that a majority of the respondents held positive attitude towards edible wild plants as being healthy, safe food, part of traditional dietary culture. Increasing demand of edible wild plants from urban residents aroused conflicts with local residents’ interest given that around 86% of the forested hills are private in Noto Region. Non timber forest products (NTFP extraction can be seen as a tool for creating socioeconomic relationships that are dependent on healthy, biodiverse ecosystems. It was suggested that Japanese Agricultural Cooperatives (JA and Forestry Cooperatives (FCA could be involved with GIAHS process. As important traditional dietary and ecological system, edible wild plants should be a part of GIAHS project for rural revitalization.

  2. Criterios para mejorar la gestion y comunicacion ambiental en la administracion publica. Una investigacion mixta en la ciudad de Madrid

    National Research Council Canada - National Science Library

    Diaz, Maria Jose; Ulloa, Jorge; Palavecinos, Mireya; Pineiro, Concepcion

    2015-01-01

    ...) y la realizacion de entrevistas a expertos y gestores locales. Los resultados entregan datos que permiten verificar problemas en la gestion y comunicacion municipal que perpetuan los conflictos ambientales...

  3. Gestion del conocimiento para la elaboracion de un modelo formal de asignacion de personal a equipos de proyectos de software

    National Research Council Canada - National Science Library

    Andre Ampuero, Margarita; Baldoquin de la Pena, Maria Gulnara; Acuna Castillo, Silvia Teresita

    2009-01-01

    .... En este trabajo se describen los principales resultados del proceso de gestion de conocimientos realizado para obtener los elementos considerados en un modelo formal para la asignacion de personal...

  4. Gestion de un programa de capacitacion en linea para el desarrollo de habilidades y capacidades TIC en profesores de negocios

    National Research Council Canada - National Science Library

    Farias, Gabriela; Pedraza, Norma; Lavin, Jesus

    2013-01-01

    .... El programa de capacitacion se desarrollo utilizando la Red CUDI de Internet 2 para la realizacion de videoconferencias, asi como la plataforma educativa SAKAI para la gestion de la intervencion educativa...

  5. Functional and Structural Optimality in Plant Growth: A Crop Modelling Case Study

    Science.gov (United States)

    Caldararu, S.; Purves, D. W.; Smith, M. J.

    2014-12-01

    Simple mechanistic models of vegetation processes are essential both to our understanding of plant behaviour and to our ability to predict future changes in vegetation. One concept that can take us closer to such models is that of plant optimality, the hypothesis that plants aim to achieve an optimal state. Conceptually, plant optimality can be either structural or functional optimality. A structural constraint would mean that plants aim to achieve a certain structural characteristic such as an allometric relationship or nutrient content that allows optimal function. A functional condition refers to plants achieving optimal functionality, in most cases by maximising carbon gain. Functional optimality conditions are applied on shorter time scales and lead to higher plasticity, making plants more adaptable to changes in their environment. In contrast, structural constraints are optimal given the specific environmental conditions that plants are adapted to and offer less flexibility. We exemplify these concepts using a simple model of crop growth. The model represents annual cycles of growth from sowing date to harvest, including both vegetative and reproductive growth and phenology. Structural constraints to growth are represented as an optimal C:N ratio in all plant organs, which drives allocation throughout the vegetative growing stage. Reproductive phenology - i.e. the onset of flowering and grain filling - is determined by a functional optimality condition in the form of maximising final seed mass, so that vegetative growth stops when the plant reaches maximum nitrogen or carbon uptake. We investigate the plants' response to variations in environmental conditions within these two optimality constraints and show that final yield is most affected by changes during vegetative growth which affect the structural constraint.

  6. Securite fonciere et gestion de la fertilite des sols: etudes de cas au Ghana et au Benin.

    NARCIS (Netherlands)

    Saidou, A.; Adjei-Nsiah, S.; Kossou, D.; Sakyi-Dawson, O.; Kuyper, T.W.

    2007-01-01

    Dans le cadre d¿un programme interuniversitaire de recherche, Convergence des Sciences (CoS), une étude a été conduite sur les stratégies de gestion de la fertilité du sol dans les régions centrales du Ghana (Wenchi) et du Bénin (Savè) où des pratiques variables de gestion de la fertilité du sol son

  7. Impact of urbanization on plant diversity: A case study in built-up areas of Beijing

    Institute of Scientific and Technical Information of China (English)

    LIANG Yao-qin; LI Jing-wen; LI Jing; Sanna Katrina VALIMAKI

    2008-01-01

    Urbanization is developing rapidly in the world, which seriously changes the habitat of organisms and has clearly a negative effect on biodiversity. Preservation of biodlversity is crucial in urban planning and management, which is also an important symbol for the level of greening. Problems such as scarcity of urban green space and plant species have become obstacles to the establishment of ecological friendly cities. However, coexistence of nature and modernization, as well the coordination of economic development and biodiversity, are goals that people are seeking. We have taken the built-up areas of Beijing as a study case and discussed the impacts of urbanization on plant diversity, with the support of fieldwork and SPOT remote sensing data. The results are as follows: 1) in the process of urbanization, exotic plants have been widely introduced, which has affected species composition and the proportion of native plants; it is clear that artificial green spaces always will have a lower level of plant diversity than natural green spaces; 2) functional differences of green space types partially decide their species abundance, so that plant diversity in greenbelts and streets is generally lower than in parks; 3) the spatial variety of plant diversity contributes much to the imbalance of district development and the planning of different functional zones; this variation is embodied in different ring-belts and directions; 4) habitat fragmentation also affects plant diversity to a great extent; there is a significant positive correlation between high fragmentation and low plant diversity. According our results, some suggestions are proposed, which would be suitable for the preservation of plant diversity and ecological improvement during urbanization.

  8. Management Index Systems and Energy Efficiency Diagnosis Model for Power Plant: Cases in China

    Directory of Open Access Journals (Sweden)

    Jing-Min Wang

    2016-01-01

    Full Text Available In recent years, the energy efficiency of thermal power plant largely contributes to that of the industry. A thorough understanding of influencing factors, as well as the establishment of scientific and comprehensive diagnosis model, plays a key role in the operational efficiency and competitiveness for the thermal power plant. Referring to domestic and abroad researches towards energy efficiency management, based on Cloud model and data envelopment analysis (DEA model, a qualitative and quantitative index system and a comprehensive diagnostic model (CDM are construed. To testify rationality and usability of CDM, case studies of large-scaled Chinese thermal power plants have been conducted. In this case, CDM excavates such qualitative factors as technology, management, and so forth. The results shows that, compared with conventional model, which only considered production running parameters, the CDM bears better adaption to reality. It can provide entities with efficient instruments for energy efficiency diagnosis.

  9. Optimization-based methodology for wastewater treatment plant synthesis – a full scale retrofitting case study

    DEFF Research Database (Denmark)

    Bozkurt, Hande; Gernaey, Krist; Sin, Gürkan

    2015-01-01

    technologies. The superstructure optimization problem is formulated as a Mixed Integer (non)Linear Programming problem and solved for different scenarios - represented by different objective functions and constraint definitions. A full-scale domestic wastewater treatment plant (265,000 PE) is used as a case...

  10. Costs and benefits of biological control of invasive alien plants: case studies from South Africa

    CSIR Research Space (South Africa)

    Van Wilgen, BW

    2004-01-01

    Full Text Available . In many cases, plants are brought under complete control. In this paper, we describe an attempt to estimate the costs and benefits of the biological control of 6 weed species (Opuntia, aurantiaca, Sesbania punicea, Lantana camara, Acacia longifolia, A...

  11. Population around the French nuclear power plant sites: a key-parameter for crisis management and safety economics; La population autour des sites nucleaires francais: un parametre determinant pour la gestion de crise et l'analyse economique des accidents nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    PASCAL, A. [IRSN, Laboratoire d' economie de la surete, DSDP/SPIIC/LAERN, BP 17, 92262 Fontenay-aux-Roses (France)

    2012-01-15

    This paper undertakes an analysis of population around the French nuclear power plant sites, tackles the problem of evacuation planning and provides a glimpse into ongoing research at the Laboratory of Nuclear Safety Economics of the IRSN, about the cost assessment of a nuclear accident and long-term land contamination. (author)

  12. Medicinal plants used by the Yi ethnic group: a case study in central Yunnan

    Directory of Open Access Journals (Sweden)

    Li Sumei

    2009-04-01

    Full Text Available Abstract Background This paper is based on ethnomedicinal investigation conducted from 1999–2002 in Chuxiong, central Yunnan Province, Southwest China. The Yi medicine has made a great contribution to the ethnomedicinal field in China. Neither case studies nor integrated inventories have previously been conducted to investigate the traditional Yi plants. This paper aims to argue the status and features of medicinal plants used in traditional Yi societies through a case study. Methods The approaches of ethnobotany, anthropology, and participatory rural appraisal were used in the field surveys. Twenty-two informants in four counties were interviewed during eight field trips. Medicinal plant specimens were identified according to taxonomic methods. Results One hundred sixteen medicinal plant species were found to be useful by the local people in the treatment of various diseases or disorders, especially those relating to trauma, gastrointestinal disorders and the common cold. Among these 116 species, 25 species (21.55% were found to have new curative effects and 40 species (34.48% were recorded for their new preparation methods; 55 different species were used in treating wounds and fractures, and 47 were used to treat gastrointestinal disorders. Traditional Yi herbal medicines are characterized by their numerous quantities of herbaceous plants and their common preparation with alcohol. Conclusion Totally 116 species in 58 families of medicinal plants traditionally used by the Yi people were inventoried and documented. The characteristics of medicinal plants were analyzed. Some new findings (such as new curative effects and new preparation methods were recorded These newly gathered ethnobotanical and medicinal data are precious sources for the future development of new drugs, and for further phytochemical, pharmacological and clinical studies.

  13. La Gestion Locale Sécurisée (GELOSE : L’expérience malgache de gestion décentralisée des ressources naturelles

    Directory of Open Access Journals (Sweden)

    Bruno Sarrasin

    2009-09-01

    Full Text Available Marqué par une biodiversité exceptionnelle et une grande pauvreté humaine, la destruction rapide des ressources naturelles à Madagascar place le territoire et son appropriation au centre des enjeux de développement. Dans ce contexte, cet article s’intéresse à l’émergence et à la mise en œuvre d’une politique publique touchant la Gestion LOcale SÉcurisée (GELOSE dont le principal objectif vise à transférer la gestion de ces ressources, de l’État vers les communautés locales, dans le but de les protéger plus efficacement. Cette lecture montre cependant que les objectifs, les ressources et les stratégies des principaux acteurs concernés sont difficilement conciliables et que le système de relation qu’il induit n’est pas nécessairement en phase avec les finalités poursuivies.Marked by exceptional biodiversity and extreme human poverty, Madagascar is experiencing a rapid destruction of its natural resources, placing territory and its appropriation at the heart of development issues. From this perspective, this article will look at the development and implementation of a public policy, the Gestion LOcale SÉcurisée (GELOSE, for the local management of natural renewable resources. This regulation seeks to transfer the management of these resources from the government to local communities in the goal of protecting them more effectively. We will see, however, that the objectives, resources and strategies of the primary actors concerned are difficult to reconcile at best and that the relational system to which the policy gives rise is not necessarily in keeping with the goals being pursued.

  14. Shamir secret sharing scheme with dynamic access structure (SSSDAS). Case study on nuclear power plant

    Energy Technology Data Exchange (ETDEWEB)

    Thiyagarajan, P.; Thandra, Prasanth Kumar; Rajan, J.; Satyamurthy, S.A.V. [Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam (India). Computer Div.; Aghila, G. [National Institute of Technology, Karaikal (India). Dept. of Computer Science and Engineering

    2015-05-15

    In recent years, due to the sophistication offered by the Internet, strategic organizations like nuclear power plants are linked to the outside world communication through the Internet. The entry of outside world communication into strategic organization (nuclear power plant) increases the hacker's attempts to crack its security and to trace any information which is being sent among the top level officials. Information security system in nuclear power plant is very crucial as even small loophole in the security system will lead to a major disaster. Recent cyber attacks in nuclear power plant provoked information security professionals to look deeply into the information security aspects of strategic organizations (nuclear power plant). In these lines, Shamir secret sharing scheme with dynamic access structure (SSSDAS) is proposed in the paper which provides enhanced security by providing dynamic access structure for each node in different hierarchies. The SSSDAS algorithm can be applied to any strategic organizations with hierarchical structures. In this paper the possible scenarios where SSSDAS algorithm can be applied to nuclear power plant is explained as a case study. The proposed SSSDAS scheme identifies the wrong shares, if any, used for reconstruction of the secret. The SSSDAS scheme also address the three major security parameters namely confidentiality, authentication and integrity.

  15. LE SYSTEME D'INFORMATION DE GESTION HOSPITALIER : QUELLES CARACTERISTIQUES PRIVILEGIER POUR FAVORISER LE DEVELOPPEMENT DES OUTILS EN CONTROLE DE GESTION ?

    OpenAIRE

    Nobre, Thierry; Signolet, Lionel

    2009-01-01

    International audience; Accounting Management Tools Implementation requires a Management Information System (MIS) capable of providing data. This paper aims to propose some ways to ensure the MIS's capabilities to make easier the Accounting Management Tools Implementation in a particular organisation: the French Public Hospital.; développer des outils en contrôle de gestion suppose d'assurer la collecte des données nécessaires à leur construction. Il s'agit de la tâche du Système d'Informatio...

  16. ÉVALUATION ÉCONOMIQUE DES PLANS DE GESTION PISCICOLE.

    OpenAIRE

    ARMAND C.; BONNIEUX, F.; CHANGEUX T.

    2002-01-01

    En France, la gestion de la pêche en eau douce est généralement confiée aux associations de pêcheurs qui agissent sous le contrôle de l’Etat. Le Conseil Supérieur de la Pêche a développé une méthode synthétique d’élaboration de plans de gestion piscicole qui favorisent la reproduction naturelle et le maintien des populations sauvages. Ces plans s’appuient sur des opérations de protection des habitats et de restauration du milieu dont il convient d’évaluer la rentabilité sociale. Ce qui condui...

  17. La société civile : outil de gestion et de transmission du patrimoine

    OpenAIRE

    Harrison Silvy

    2013-01-01

    Le mémoire de stage vient conclure une année étudiante répartie entre cours universitaires et expériences professionnelles. Ainsi, cette année nous a démontré des compétences pluridisciplinaires nécessaires à la pratique de la gestion de patrimoine à savoir juridiques, financières, fiscales et comptables. La société civile, propos de ce mémoire, est à l'image de la gestion de patrimoine, elle requiert des connaissances transversales et une technicité certaine. Ce mémoire présentera la société...

  18. Le Paradoxe de la Communication / Contrôle de Gestion

    OpenAIRE

    Chtioui, Tawhid

    2006-01-01

    International audience; La communication correspond actuellement à une préoccupation majeure du management, pourtant elle ne se traduit pas souvent dans la recherche en contrôle de gestion. Ceci peut être dû à l'une des deux raisons suivantes. D'une part, il semble que l'apparence première de simplicité du lien entre contrôle de gestion et communication s'accompagne d'une certaine incapacité à en saisir concrètement des éléments opératoires pour résoudre les problèmes qu'ils posent dans l'ent...

  19. CAN PALYNOLOGY CONTRIBUTE TO PLANT DIVERSITY CONSERVATION ACTIVITIES? THE WETLAND PLANTS IN SOUTHERN PO PLAIN AS A CASE STUDY.

    Directory of Open Access Journals (Sweden)

    F. Buldrini

    2013-04-01

    Full Text Available The vegetation of the Po Plain has long been modified by natural and human factors. The present plant landscape is almost entirely anthropogenic. Many hydro-hygrophilous species, quite common until a few decades ago, are now very rare and in danger of extinction, so conservation programmes are necessary for their protection and maintenance. It is known that the former vegetation can be reconstructed thanks to palynological data, but assessing the real presence of a given species is not always possible. This work aims to understand whether palynology can give information about the presence and identification of hydro-hygrophilous species, supporting the classical flora analyses commonly conducted on herbarium data. In some cases, these species are well characterized from a morphopalynological and phytogeographical viewpoint: the plant occurrence may be suggested even by pollen findings in surface-samples. Discovering the presence of some of these species by pollen morphotypes offers a real opportunity to gear the reintroduction/reinforcing programmes, but ecological analysis will obviously be essential to ascertain the real suitability of the chosen sites, according to the ecological requirements of the species. Our analysis refers to wetlands of the southern Po plain within the Modena Province, where detailed palynological data about present and historical local flora were available.

  20. Energy saving on wastewater treatment plants through improved online control: case study wastewater treatment plant Antwerp-South.

    Science.gov (United States)

    De Gussem, Kris; Fenu, Alessio; Wambecq, Tom; Weemaes, Marjoleine

    2014-01-01

    This work provides a case study on how activated sludge modelling and computational fluid dynamics (CFD) can help to optimize the energy consumption of a treatment plant that is already equipped with an advanced control based on online nutrient measurements. Currently, aeration basins on wastewater treatment plant Antwerp-South are operated sequentially while flow direction and point of inflow and outflow vary as a function of time. Activated sludge modelling shows that switching from the existing alternating flow based control to a simultaneous parallel feeding of all aeration tanks saves 1.3% energy. CFD calculations also illustrate that the water velocity is still sufficient if some impellers in the aeration basins are shutdown. The simulations of the Activated Sludge Model No. 2d indicate that the coupling of the aeration control with the impeller control, and automatically switching off some impellers when the aeration is inactive, can save 2.2 to 3.3% of energy without affecting the nutrient removal efficiency. On the other hand, all impellers are needed when the aeration is active to distribute the oxygen.

  1. L'économie de la gestion des risques en zone semi-aride

    NARCIS (Netherlands)

    Dijk, van J.W.M.; Tielekes, E.; Schlecht, E.; Hiernaux, P.

    2001-01-01

    Toute forme de gestion ou d'aménagement des ressources fourragères pour les éleveurs dans la zone semi-aride au Sahel commence obligatoirement par l'appréciation d'un certain nombre de variables et notamment leur variabilité dans l'espace et dans le temps. Cette variabilité est la source d'une vaste

  2. Numerical simulation and comparison of conventional and sloped solar chimney power plants: the case for Lanzhou.

    Science.gov (United States)

    Cao, Fei; Li, Huashan; Zhang, Yang; Zhao, Liang

    2013-01-01

    The solar chimney power plant (SCPP) generates updraft wind through the green house effect. In this paper, the performances of two SCPP styles, that is, the conventional solar chimney power plant (CSCPP) and the sloped solar chimney power plant (SSCPP), are compared through a numerical simulation. A simplified Computational Fluid Dynamics (CFD) model is built to predict the performances of the SCPP. The model is validated through a comparison with the reported results from the Manzanares prototype. The annual performances of the CSCPP and the SSCPP are compared by taking Lanzhou as a case study. Numerical results indicate that the SSCPP holds a higher efficiency and generates smoother power than those of the CSCPP, and the effective pressure in the SSCPP is relevant to both the chimney and the collector heights.

  3. Life extension of nuclear power plants. World situation and the USA case

    Energy Technology Data Exchange (ETDEWEB)

    Leon, Pablo T.; Cuesta, Loreto; Serra, Eduardo; Yaguee, Luis [Endesa. C/ Ribera del Loira, No.60, 28042 Madrid (Spain)

    2010-07-01

    Life extension of Nuclear Power Plants above 40 years of operation is an important issue in many countries. The Kyoto limits for CO{sub 2} emissions, the security of supply, the costs and predictability of renewable energy, etc., are putting nuclear energy in the agenda of many countries all around the world. The delay, due to the economic crisis, of the new nuclear projects in many countries, push governments to continue operation of nuclear plants above the 40 years design life. This is the case in the USA, where 59 units have obtained the extension of operation license from 40 to 60 years, and currently have 19 units are in the reviewing process. The life extension of these plants permits savings in CO{sub 2} emissions and in the consumption of additional amounts of fossil fuels. In this paper, the position of the different nuclear countries about the Extension of Life will be reviewed, with a special emphasis on the situation in the USA. In this last case, the NRC approach for operation licenses above 40 years will be explained, and actions taken by nuclear companies in the country will be reviewed. In this country, the debate about life extension over 40 years has been surpassed, and the new technical discussion focuses on the operation of nuclear power plants above 60 years. (authors)

  4. GESTION DES NEMATODES A GALLES PARASITES DE LA ...

    African Journals Online (AJOL)

    ACSS

    antagonistes et d'extraits botaniques sur les nématodes à galles parasites de la culture d'egusi. ... T-12 a été faite à 108 spores plant-1 et celle de la poudre de graines de neem à 75 g plant-1, une ..... ANOVA à un critère de classification.

  5. A case of fatal poisoning with the aconite plant: quantitative analysis in biological fluid.

    Science.gov (United States)

    Elliott, S P

    2002-01-01

    In recent years recorded cases of plant poisoning have become rare, this may in part be due to the possibility of plant ingestion not being indicated at the beginning of an investigation. Aconitum napellus (aconite, Wolfsbane, Monkshood) is one of the most poisonous plants in the UK. It contains various potent alkaloids such as aconitine, isoaconitine, lycaconitine and napelline. Ingestion of Aconitum plant extracts can result in severe, potentially fatal toxic effects. This paper describes the analytical findings in a recent death in the UK. resulting from deliberate ingestion of Aconitum napellus extract. The concentrations of aconitine measured by HPLC-DAD in the post mortem femoral blood and urine were 10.8 micrograms/L and 264 micrograms/L, respectively. The aconitine concentration in the ante mortem urine was 334 micrograms/L and was estimated to be 6 micrograms/L in the ante mortem serum. Hence, accidental, suicidal or homicidal poisoning due to the ingestion of plant material remains a possibility and should be borne in mind when investigating sudden or unexplained death.

  6. Adaptive transgenerational plasticity in plants: case studies, mechanisms, and implications for natural populations

    Directory of Open Access Journals (Sweden)

    Jacob J. Herman

    2011-12-01

    Full Text Available Plants respond to environmental conditions not only by plastic changes to their own development and physiology, but also by altering the phenotypes expressed by their offspring. This transgenerational plasticity was initially considered to entail only negative effects of stressful parental environments, such as production of smaller seeds by resource- or temperature-stressed parent plants, and was therefore viewed as environmental noise. Recent evolutionary ecology studies have shown that in some cases, these inherited environmental effects can include specific growth adjustments that are functionally adaptive to the parental conditions that induced them, which can range from contrasting states of controlled laboratory environments to the complex habitat variation encountered by natural plant populations. Preliminary findings suggest that adaptive transgenerational effects can be transmitted by means of diverse mechanisms including changes to seed provisioning and biochemistry, and epigenetic modifications such as DNA methylation that can persist across multiple generations. These non-genetically inherited adaptations can influence the ecological breadth and evolutionary dynamics of plant taxa and promote the spread of invasive plants. Interdisciplinary studies that join mechanistic and evolutionary ecology approaches will be an important source of future insights.

  7. Implementation of Case-Based Reasoning System for Knowledge Management of Power Plant Construction Projects in a Korean Company

    Science.gov (United States)

    Jang, Gil-Sang

    Recently, plant construction industries are enjoying a favorable business climate centering around developing countries and oil producing countries rich in oil money. This paper proposes a methodology of implementing corporation-wide case-based reasoning (CBR) system for effectively managing lessons learned knowledge like experiences and know-how obtained in performing power plant construction projects. Our methodology is consisted of 10 steps: user requirement analysis, information modeling, case modeling, case base design, similarity function design, user interface design, case base building, CBR module development, user interface development, integration test. Also, to illustrate the usability of proposed methodology, the practical CBR system is implemented for the plant construction business division of ’H’ company which has international competitiveness in the field of plant construction industry. At present, our CBR system is successfully utilizing as storing, sharing, and reusing the knowledge which is accumulated in performing power plant construction projects in the target enterprise.

  8. La gestion des connaissances dans le processus d’innovation de produit

    Directory of Open Access Journals (Sweden)

    Agnieszka A. Szpitter

    2014-09-01

    Full Text Available Cet article décrit le niveau de connaissance de différents domaines qu’ont les salariés des entreprises impliqués dans la gestion de projet. Son but est d’établir un diagnostic pour le premier degré de maturité de la gestion à partir d’informations recoltées dans quatre entreprises. L’établissement d’un langage commun est le premier des cinq degrés de maturité de la gestion de projet. Méthodologie: une étude qualitative sur un échantillon cible a été réalisée à l’aide d’un questionnaire. Résultats: Cet article présente une partie des résultats de l’étude sur la maturité des projets de ces organisations dans le processus d’innovation de produit. La connaissance du projet est une ressource qui se rapporte aux méthodes et aux techniques liées à la coordination des activités du projet et de l’expérience des projets précédents. Conclusions: La bonne gestion des ressources liée à la connaissance au cours du projet peut sans aucun doute apporter de nombreux avantages, tels que le développement et l’amélioration de solutions propres, l’élimination de la duplication des travaux. Elle permet aussi de gagner du temps, de tirer les leçons de ses propres erreurs et de celles des autres et de mettre en place de meilleures pratiques. Originalité: La connaissance des domaines techniques liés au projet au sein de l’équipe qui travaille dessus indique le degré de maturité de la gestion de projet en ce qui concerne l’innovation du produit.

  9. Système d’information comptable et contrôle de gestion dans les entreprises camerounaises

    Directory of Open Access Journals (Sweden)

    Dagobert Ngongang

    2013-12-01

    Full Text Available Cette étude a objet, d’abord, d’identifier quelques spécificités du SIC et des modes de contrôle de gestion, ensuite d’analyser l’impact des facteurs de contingence structurelle sur la pratique de la comptabilité analytique et sur le contrôle de gestion et, enfin, à examiner la relation entre le SIC et le contrôle de gestion.L’analyse des données recueillies par questionnaire administré par entretien direct auprès de 68 entreprises montre que les pratiques comptables sont différenciées, même si on note une prééminence des pratiques de comptabilité générale et de fiscalité. Les TIC sont de plus en plus intégrées dans le SIC et déterminent le rôle du contrôleur de gestion. Deux facteurs de contingence structurelle, la taille et le secteur d’activité, déterminent la pratique de la comptabilité analytique. L’âge de l’entreprise n’explique aucunement le degré d’importance accordé aux outils de contrôle de gestion.

  10. Management post-treatment of sewage plant sludge. The UE directives affect its re-use and encourage waste-to-energy recovery; Gestion y postratamientos de fangos de EDAR. Las directivas de la UE condicionan su reutilizacion e inducen a la valoracion energetica

    Energy Technology Data Exchange (ETDEWEB)

    Elias, X.

    2004-07-01

    As the number of urban waste-water treatment plants increases, so does the amount of sludge generated and this sludge must be treated so that it can be finally disposed of as a by-product or waste. This article examines and classifies the various different post-treatment techniques and processes for sludge, including the most recent, especially in regard to its use in energy production. It also looks at the major conditions laid downs by European Union (EU) legislation and points out that long-term planning of sludge waste management is required, as the choice of a particular treatment process, which generally involves a large capital outlay, must take into consideration the legal, technical and financial aspects based on a forecasts of how they are likely to perform over time in order to guarantee its future viability. Characterisation of biodegradation in waste water from the canning industry in sequencing batch reactors. (Author) 23 refs.

  11. Problematique de la gestion des eaux souterraines au Maroc

    Directory of Open Access Journals (Sweden)

    Mennani, A.

    2002-08-01

    Full Text Available Maroc a toujours fait du développent du secteur de l'eau une priorité et un choix stratégique. Ce secteur qui constitue un des principaux leviers du développement économique et social, se trouve confronté a deux défis essentiels: - L'épuisement des ressources en eau en rapport avec l'accroissement de la demande en eau tous usages confondus, avec une tendance a la pénurie absolue d'ici 2025. - La dégradation des ressources en eau qui subissent différentes formes de pollution. La rareté des ressources en eau, et la forte irrégularité aussi bien spatiale, que temporelle, qui caractérisent le contexte marocain, ont conditionné les choix des pouvoirs publics 2 adopter une stratégie globale dont les résultats ont prouvé son efficacité particulikrement durant les périodes de sécheresse consécutives. Cette stratégie tout azimuts a concerné aussi bien le plan législatif et réglementaire, que le plan de la mobilisation et de la protection des ressources en eau. Les études de pldcation entreprises ont montré que les ressources en eau conventionnelles seront saturées au niveau de la majorité de bassins a l'horizon 2020, et que ces déficits prévus risquent d'gtre aggravés dans le cas de conjonction avec des périodes de sécheresse. La politique de mobilisation et de protection des ressources en eau, en particulier souterraine dont le potentiel mobilisable est de l'ordre de 4 milliards de m3 sur un total de 20 milliards, nécessite une gestion participative ainsi que le recours a de nouvelles approches et technologies pour compléter les méthodes conventionnelles utilisées jusqu'a présent.Marruecos siempre ha considerado prioritario y estratégico el desarrollo del sector del agua. Este sector, que constituye una de las principales palancas del desarrollo económico y social, se enfrenta a dos desafíos principales: - La disminución de los recursos hídricos en relación con el aumento de la demanda para todo tipo de

  12. Le contrôle de gestion des entreprises familiales : un contrôle non-financiarisé ?

    OpenAIRE

    Barbelivien, Dominique

    2016-01-01

    Nous examinons la tendance décrite dans la littérature quant à la financiarisation de la fonction de contrôle de gestion en nous appuyant sur le cas d’une entreprise de taille intermédiaire familiale. Nous constatons que le contrôle de gestion dans le cas étudié correspond à une rationalisation des décisions opérationnelles et développons les raisons qui peuvent expliquer la persistance d’un contrôle de gestion très opérationnel. Le contexte d’entreprise familiale dans laquelle il y a confusi...

  13. Le contrôle de gestion des entreprises familiales : un contrôle non-financiarisé ?

    OpenAIRE

    Barbelivien, Dominique

    2016-01-01

    Nous examinons la tendance décrite dans la littérature quant à la financiarisation de la fonction de contrôle de gestion en nous appuyant sur le cas d’une entreprise de taille intermédiaire familiale. Nous constatons que le contrôle de gestion dans le cas étudié correspond à une rationalisation des décisions opérationnelles et développons les raisons qui peuvent expliquer la persistance d’un contrôle de gestion très opérationnel. Le contexte d’entreprise familiale dans laquelle il y a confusi...

  14. Rattachement hiérachique du contrôleur de gestion, perception du contrôle de gestion et qualité des relations contrôleurs - manageurs : une étude exploratoire

    OpenAIRE

    Godener, Armelle; Fornerino, Marianela

    2004-01-01

    Working paper serie RMT (WPS 04-02); La recherche proposée étudie le lien existant entre le rattachement hiérarchique du contrôleur de gestion et la perception du contrôle de gestion par les directeurs de l'entité pour laquelle travaille le contrôleur ainsi que par les opérationnels, ainsi que le lien rattachant cette perception et la qualité des relations contrôleurs / directeurs et contrôleurs / opérationn

  15. Rural nutrition interventions with indigenous plant foods - a case study of vitamin A deficiency in Malawi

    Directory of Open Access Journals (Sweden)

    Babu S.C.

    2000-01-01

    Full Text Available Identification, propagation, and introduction of a nutritionally rich, indigenous plant species in the existing cropping system are presented in this paper as a method of rural nutrition intervention. A case study of Moringa (Moringa oleifera Lam., Moringaceae, which is a common tree in Malawi and one of the richest sources of vitamin A and vitamin C compared to the commonly consumed vegetables is presented to address the problem of vitamin A deficiency. After a brief review of the prevalence of vitamin A deficiency and the efforts to reduce its incidence in Malawi, Moringa is suggested as a potential solution to the problem. A framework for designing nutrition intervention with Moringa is described for actual implementation. It is argued that attempts to identify, document, and encourage the utilization of nutrient-rich indigenous plants could be cost-effective, and a sustainable method of improving the nutritional status of local populations.

  16. Licensing of nuclear power plants. The case of Sweden in an international comparison

    Energy Technology Data Exchange (ETDEWEB)

    Michanek, Gabriel [Law Faculty, Uppsala University, P.O. Box 512, 751 20 Uppsala (Sweden); Soederholm, Patrik [Division of Social Sciences, Luleaa University of Technology, 971 87 Luleaa (Sweden)

    2009-10-15

    Efficient power plant licensing procedures are essential for the functioning of deregulated electricity markets. The purpose of this paper is to review and analyse the licensing process for nuclear power plants in Sweden, and in part contrast the Swedish case with the corresponding approaches in a selection of other countries. This approach permits a discussion of how licensing processes can be altered and what the benefits and drawbacks of such changes are. The paper highlights and discusses a number of important legal issues and implications, including, for instance: (a) the role of political versus impartial decision-making bodies; (b) the tension between national policy goals and implementation at the local level; (c) public participation and access to justice; (d) consistency and clarity of the legal system; and (e) the introduction of license time limits. (author)

  17. Licensing of nuclear power plants: The case of Sweden in an international comparison

    Energy Technology Data Exchange (ETDEWEB)

    Michanek, Gabriel [Law Faculty, Uppsala University, P.O. Box 512, 751 20 Uppsala (Sweden)], E-mail: gabriel.michanek@jur.uu.se; Soederholm, Patrik [Division of Social Sciences, Lulea University of Technology, 971 87 Lulea (Sweden)], E-mail: patrik.soderholm@ltu.se

    2009-10-15

    Efficient power plant licensing procedures are essential for the functioning of deregulated electricity markets. The purpose of this paper is to review and analyse the licensing process for nuclear power plants in Sweden, and in part contrast the Swedish case with the corresponding approaches in a selection of other countries. This approach permits a discussion of how licensing processes can be altered and what the benefits and drawbacks of such changes are. The paper highlights and discusses a number of important legal issues and implications, including, for instance: (a) the role of political versus impartial decision-making bodies; (b) the tension between national policy goals and implementation at the local level; (c) public participation and access to justice; (d) consistency and clarity of the legal system; and (e) the introduction of license time limits.

  18. Strategic patent analysis in plant biotechnology: terpenoid indole alkaloid metabolic engineering as a case study.

    Science.gov (United States)

    Miralpeix, Bruna; Sabalza, Maite; Twyman, Richard M; Capell, Teresa; Christou, Paul

    2014-02-01

    The do-it-yourself patent search is a useful alternative to professional patent analysis particularly in the context of publicly funded projects where funds for IP activities may be limited. As a case study, we analysed patents related to the engineering of terpenoid indole alkaloid (TIA) metabolism in plants. We developed a focused search strategy to remove redundancy and reduce the workload without missing important and relevant patents. This resulted in the identification of approximately 50 key patents associated with TIA metabolic engineering in plants, which could form the basis of a more detailed freedom-to-operate analysis. The structural elements of this search strategy could easily be transferred to other contexts, making it a useful generic model for publicly funded research projects. © 2014 Society for Experimental Biology, Association of Applied Biologists and John Wiley & Sons Ltd.

  19. Gestion des déchets et inégalités à Lima (Pérou

    Directory of Open Access Journals (Sweden)

    Mathieu Durand

    2011-12-01

    Full Text Available L’étude de la gestion des déchets met en évidence des logiques spatiales permettant de mieux comprendre le fonctionnement des villes. Cette thèse de doctorat en offre l’illustration à travers le cas des villes d’Amérique latine, plus particulièrement de Lima. Nous y interprétons la gestion des déchets solides et liquides sous l’angle des inégalités environnementales et écologiques afin de mieux comprendre les enjeux en termes de vulnérabilité et de durabilité.

  20. Identification and quantification of environmental issues of aging coal-based power plant - Case study

    Energy Technology Data Exchange (ETDEWEB)

    Sharma, M.; Vyas, P. [Indian Institute of Technology, Kanpur (India). Dept. of Civil Engineering, Environmental Engineering & Management Programme

    2001-12-01

    This research has focused on three environmental issues: (1) fugitive dust emissions; (2) water management; and (3) operational parameters (such as thermal efficiency) of aging coal-based thermal power plants, using a case study. Regarding dust emissions, it was observed that the identified sources are fugitive in nature and contribute to a significant loss of raw material and particulate emissions. These sources include coal dust emissions from a wagon tippler area, ball mill operations, and leakage from the ash hoppers of electrostatic precipitators. In situ measurements of air quality and meteorological measurements were undertaken to estimate the emissions from a wagon tippler area, and a mass balance technique was applied across other operations to estimate the emissions. These fugitive emissions were about 98% of the total particulate emissions and the remaining 2% emissions were from the stack. The losses of water in various unit operations were also examined. The sources of water losses include the clariflocculator, the demineralization plant, and auxiliary water cooling of motors and pumps. The operational parameters such as auxiliary power requirement and thermal efficiency that indirectly affect the environment were also studied. The auxiliary power requirement was estimated as 9 MW against the accepted requirement of 7 MW. The thermal efficiency of the plant was estimated to be 26%, against the acceptable level of 32% of such plants in India. This study suggests that a significant reduction in cost and improvements in the environment could be achieved if the plant could be operated at rated efficiencies. It was observed that nonpoint (fugitive) sources, although significant, are ignored.

  1. A method for under-sampled ecological network data analysis: plant-pollination as case study

    Directory of Open Access Journals (Sweden)

    Peter B. Sorensen

    2012-01-01

    Full Text Available In this paper, we develop a method, termed the Interaction Distribution (ID method, for analysis of quantitative ecological network data. In many cases, quantitative network data sets are under-sampled, i.e. many interactions are poorly sampled or remain unobserved. Hence, the output of statistical analyses may fail to differentiate between patterns that are statistical artefacts and those which are real characteristics of ecological networks. The ID method can support assessment and inference of under-sampled ecological network data. In the current paper, we illustrate and discuss the ID method based on the properties of plant-animal pollination data sets of flower visitation frequencies. However, the ID method may be applied to other types of ecological networks. The method can supplement existing network analyses based on two definitions of the underlying probabilities for each combination of pollinator and plant species: (1, pi,j: the probability for a visit made by the i’th pollinator species to take place on the j’th plant species; (2, qi,j: the probability for a visit received by the j’th plant species to be made by the i’th pollinator. The method applies the Dirichlet distribution to estimate these two probabilities, based on a given empirical data set. The estimated mean values for pi,j and qi,j reflect the relative differences between recorded numbers of visits for different pollinator and plant species, and the estimated uncertainty of pi,j and qi,j decreases with higher numbers of recorded visits.

  2. Optimization-based methodology for wastewater treatment plant synthesis – a full scale retrofitting case study

    DEFF Research Database (Denmark)

    Bozkurt, Hande; Gernaey, Krist; Sin, Gürkan

    2015-01-01

    technologies. The superstructure optimization problem is formulated as a Mixed Integer (non)Linear Programming problem and solved for different scenarios - represented by different objective functions and constraint definitions. A full-scale domestic wastewater treatment plant (265,000 PE) is used as a case...... framework to manage the multi-criteria WWTP design/retrofit problem for domestic wastewater treatment. The design space (i.e. alternative treatment technologies) is represented in a superstructure, which is coupled with a database containing data for both performance and economics of the novel alternative...

  3. La gestion de la relation client dans la banque: Cas du marché marocain

    Directory of Open Access Journals (Sweden)

    EL KORAICHI Mustapha

    2014-03-01

    Full Text Available Face aux évolutions du secteur bancaire (concurrence accrue, crise de confiance l’adoption d’un système de gestion de la relation client représente un enjeu important pour les banques. Il contribue à l’optimisation de la gestion du portefeuille client, plus précisément ce système permet d’acquérir de nouveaux clients et d’augmenter la rentabilité des clients existants. Cet article a pour objectif de répondre à la problématique suivante: le système de gestion de la relation client permet-il aux banques d’atteindre les objectifs attendus? L’étude que nous avons réalisée auprès de 47 banques commerciales marocaines montre que malgré le potentiel anticipé, les bénéfices escomptés d’un tel système restent limités. En effet, l’utilisation de ce système reste à son état embryonnaire, il se centre principalement sur la collecte des informations clients au niveau des agences tandis que l’analyse et l’exploitation de ces informations se fait au niveau du siège de la banque. De même, les opérations basiques de la banque occupent une grande part du temps de travail des agents de la banque au dépend des services bancaires à valeur ajoutée. D’un autre côté, une grande part des banques adoptant ce système ne mesurent pas le coût de la relation avec leurs clients.

  4. La gestione dei flussi turistici tramite sistemi di trasporto innovativi: l’esempio di Perugia

    Directory of Open Access Journals (Sweden)

    Leonardo Naldini

    2010-10-01

    Full Text Available La città di Perugia ha, fin dagli anni ’70, unito alla sua capacità di attrazione turistica, dovuta al patrimonio storico ambientale plurimillenario, una volontà di affrontare il tema della mobilità urbana in maniera profondamente innovativa ed ambientalmente sostenibile. Il concetto della creazione di parcheggi di attestazione, serviti da percorsi meccanizzati di risalita verso l’acropoli, è stato recentemente ampliato dalla creazione del Minimetro, mezzo di trasporto innovativo, dal ridottissimo impatto ambientale, che unisce in soli 12 minuti, con un servizio semicontinuo, l’area di valle di Pian di Massiano, dotata di un capace parcheggio da circa 2800 posti auto, al centro cittadino, servendo diversi quartieri urbani. Tale sistema di trasporto, corridoio forte del trasporto pubblico urbano, ha fornito lo spunto per attuare una nuova modalità di gestione dei flussi turistici, che individua nel Minimetro la modalità principale di accesso al centro storico sia per i gruppi a numero ridotto, sia per i gruppi organizzati in arrivo con i bus turistici. L’organizzazione della mobilità turistica che ne è derivata costituisce un ulteriore passo in avanti lungo quell’itinerario di gestione della città che cerca di coniugare l’attrattiva turistica, con le sue ricadute in termini di crescita economica, e la salvaguardia del patrimonio storico artistico e della qualità della vita dei cittadini. Gli scenari futuri vedono un’iniezione di tecnologia in questo contesto, con l’introduzione nella gestione dei flussi turistici dei concetti di accreditamento, dell’infomobilità come supporto alle politiche urbane, del controllo unito alla fornitura di servizi georeferenziati.

  5. Aide à la décision en agriculture et gestion des ressources naturelles : note introductive

    OpenAIRE

    2003-01-01

    International audience; L'aide à la décision n'a pas pour but de se substituer aux décideurs en leur proposant des solutions "toutes faites". Elle cherche plutôt à les éclairer et à les guider vers des décisions dont ils conservent la responsabilité. Dans le domaine agricole et dans celui de la gestion des ressources naturelles, il existe aujourd'hui de nombreux outils d'aide à la décision. Les systèmes experts utilisent une base de connaissances afin de fournir des solutions, équivalentes à ...

  6. Intersubjectivité et Singularités en Entrepreneuriat et en Sciences de Gestion

    OpenAIRE

    Levy-Tadjine, Thierry

    2008-01-01

    Nos travaux de recherche, engagés d'abord dans une perspective d'économiste, puis progressivement, avec une dimension plus gestionnaire, c'est-à-dire intéressée par le pilotage organisationnel et entrepreneurial, peuvent être relus avec le double éclairage de l'intersubjectivité et de la singularité.On peut, en effet, relire notre cheminement de chercheur, des Sciences Economiques vers les Sciences de Gestion, comme articulant deux axes de recherche avec la prise en compte de l'intersubjectiv...

  7. Exemple de gestion d'un bassin mytilicole. La Baie du Mont St-Michel

    OpenAIRE

    Gerla, Daniel

    1990-01-01

    Depuis son implantation en 1954, la mytiliculture en baie du Mont-saint-Michel a été frappée par de très graves crises. En collaboration avec l'ISTPM puis l'IFREMER, les professionnels ont su analyser les causes de ces chutes de production et mettre en place des mesures adaptées à la situation. La dernière en date étant une restructuration de l'implantation de l'ensemble des bouchots de la baie de 1985 à 1981. Cette volonté de gestion globale du bassin mytilicole du Vivier-sur-Mer se...

  8. LE RISQUE DE LIQUIDITE POUR UNE BANQUE ISLAMIQUE : ENJEUX ET GESTION

    OpenAIRE

    KHOUTEM, BEN JEDIDIA; MOULDI, JLASSI

    2013-01-01

    La liquidité est une question cruciale pour les banques islamiques. L’enjeu de la liquidité et sa gestion présentent des défis pour ces banques. D’abord, les banques islamiques sont exposées au risque de liquidité3 dans un contexte de faiblesses structurelles du système financier qui pèsent sur leur solvabilité et leur liquidité (Sundararajan and Errico, 2002 ; Salman, 2004 ; El-Hawary et al, 2007 ; Akkizidis et Khandelwal, 2008, Al-Muharrami et Hardy, 2013). En fait, la plupart des banques i...

  9. Oltre i culti ammessi. Prime note sulla gestione giuridica del pluralismo religioso nella legislazione coloniale italiana*

    Directory of Open Access Journals (Sweden)

    Federica Botti

    2011-07-01

    Full Text Available Questo saggio comparirà nel volume I diritti culturali religiosi fra l’Africa e l’Europa, a cura diF. Alicino, F. Botti, in corso di stampa.Sommario: 1. Premessa – 2. Dimensione unitaria e settoriale del diritto ecclesiastico italianonella gestione della libertà religiosa nelle colonie italiane – 3. I primi provvedimenti di tuteladella libertà religiosa e dei culti nella legislazione coloniale 4. – Le linee comuni del “dirittoecclesiastico coloniale” 5. – L’avventura coloniale e la ricomposizione del conflitto tra stato eChiesa cattolica. 6. – Alcune prime sommarie considerazioni

  10. Acute methemoglobinemia with hemolytic anemia following bio-organic plant nutrient compound exposure: Two case reports.

    Science.gov (United States)

    Malkarnekar, Santoshi Balkrishna; Anjanappa, Raveesha; Naveen, L; Kiran, B G

    2014-02-01

    Two young women, were reffered to our hospital on two different occasions with history of breathlessness and mental confusion, following consumption of two different bio-organic plant nutrient compounds with a suicidal intent. On examination, they had cyanotic mucous membranes, and their blood samples showed the classic 'dark chocolate brown' appearance. Work up revealed cyanosis unresponsive to oxygen supplementation and absence of cardiopulmonary abnormality. Pulse oximetry revealed saturation of 75% in case 1 and 80% in case 2, on 8 liters oxygen supplementation via face masks, although their arterial blood gas analysis was normal, suggestive of "saturation gap". Methemoglobinemia was suspected based on these findings and was confirmed by Carbon monoxide-oximetry (CO-oximetry). Methylene blue was administered and the patients showed dramatic improvement. Both the patients developed evidence of hemolysis approximately 72 hours following admission which improved with blood transfusion and supportive treatment. The patients were eventually discharged without any neurological sequalae.

  11. Acute methemoglobinemia with hemolytic anemia following bio-organic plant nutrient compound exposure: Two case reports

    Directory of Open Access Journals (Sweden)

    Santoshi Balkrishna Malkarnekar

    2014-01-01

    Full Text Available Two young women, were reffered to our hospital on two different occasions with history of breathlessness and mental confusion, following consumption of two different bio-organic plant nutrient compounds with a suicidal intent. On examination, they had cyanotic mucous membranes, and their blood samples showed the classic ′dark chocolate brown′ appearance. Work up revealed cyanosis unresponsive to oxygen supplementation and absence of cardiopulmonary abnormality. Pulse oximetry revealed saturation of 75% in case 1 and 80% in case 2, on 8 liters oxygen supplementation via face masks, although their arterial blood gas analysis was normal, suggestive of "saturation gap". Methemoglobinemia was suspected based on these findings and was confirmed by Carbon monoxide-oximetry (CO-oximetry. Methylene blue was administered and the patients showed dramatic improvement. Both the patients developed evidence of hemolysis approximately 72 hours following admission which improved with blood transfusion and supportive treatment. The patients were eventually discharged without any neurological sequalae.

  12. Evaluation of organics removal options. A case study from a zero liquid discharge power plant

    Energy Technology Data Exchange (ETDEWEB)

    Quagraine, Emmanuel K.; Hill, Keith Dean; Omorogbe, Fredrick [Shand Power Station, Estevan (Canada)

    2010-01-15

    Although the role of organics in power plant cycle chemistry still appears to be controversial, their adverse effects in the course of makeup water treatment are very familiar and include fouling of ion exchange resins. This paper describes the organic/bio-fouling experience in a boiler makeup water treatment train for a zero liquid discharge plant, which draws on treated sewage water and surface water for cooling and utilizes the cooling tower blowdown to make distillate water from an evaporator prior to final treatment with a mixed bed demineralizer. In a case study, which is the focus of this paper, the performance of the pilot plants of two recommended organic removal techniques (i.e. reverse osmosis and organic trap resin) were compared to the existing activated carbon bed for organic removal prior to the mixed beds. Parameters evaluated for these three techniques (before and after each unit) include bacteria plate counts, organic carbons, inorganic nutrients (e.g. NH{sub 3}-N, [NO{sub 3}{sup -}+ NO{sub 2}{sup -}]-N, P, Mn, and Fe), known parameters that could significantly impact on the performance of the mixed beds (i.e. SiO{sub 2}, Cl{sup -}, SO{sub 4}{sup 2-}, Na{sup +}), and various others like pH, conductivity, turbidity, HCO{sub 3}{sup -} etc. The effects of oxidizing (i.e. bleach) and non-oxidizing (glutaraldehyde) biocides on the performance of the activated carbon filter were also evaluated.

  13. Non-native megaherbivores: the case for novel function to manage plant invasions on islands.

    Science.gov (United States)

    Hansen, Dennis M

    2015-07-20

    There is a heated debate about whether all non-native species are 'guilty until proven innocent', or whether some should be accepted or even welcomed. Further fanning the flames, I here present a case where introductions of carefully vetted, non-native species could provide a net conservation benefit. On many islands, native megaherbivores (flightless birds, tortoises) recently went extinct. Here, rewilding with carefully selected non-native species as ecological replacements is increasingly considered a solution, reinstating a herbivory regime that largely benefits the native flora. Based on these efforts, I suggest that restoration practitioners working on islands without a history of native megaherbivores that are threatened by invasive plants should consider introducing a non-native island megaherbivore, and that large and giant tortoises are ideal candidates. Such tortoises would be equally useful on islands where eradication of invasive mammals has led to increased problems with invasive plants, or on islands that never had introduced mammalian herbivores, but where invasive plants are a problem. My proposal may seem radical, but the reversibility of using giant tortoises means that nothing is lost from trying, and that indeed much is to be gained. As an easily regulated adaptive management tool, it represents an innovative, hypothesis-driven 'innocent until proven guilty' approach.

  14. POISONOUS PLANTS – TWO CASES OF POISONING WITH THORN APPLE (DATURA STRAMONIUM

    Directory of Open Access Journals (Sweden)

    Ljuba Gangl-Žvikart

    2002-01-01

    Full Text Available   Background. In attempt to provoke hallucinations two adolescents were poisoned with thorn apple. This plant could be easily found near urban and rural areas such as fields and dykes. It spreads around as a weed and its seeds are found even in bird’s food. In nowadays these seeds could be found in seedman’s shops offered for sale as decorative plants. While free acces to the internet enables the targeted population, in this case mostly adolescents, to gather large amount of information on hallucinogenic effects of seeds described above. It does not provide them with information on negative side effects which causes urgent visits at intensive care units of hospitals. The fact that the abuse of thorn apple’s seeds causes intoxications is more and more often described in scientific literature. In 1997/98 the paediatricians from Maribor described three cases of accidental poisoning of adolescents. In Slovenia there are only four out of twelve pediatric departments which haven’t had any case of poisoning of that kind yet.Results. Clinical data – simptoms of central and peripherial anticholinergic syndrom and the history (heteroanamnesy showed the possibility of poisoning with plant’s alkaloids with anticholinergic activity which was comfirmed by doctor on duty. She provided me in person with exact, specific and detailed description of seeds consumed by two young men. Physostigmine salicilate is the drug of choice and it is used in cases of serious poisoning.Conclusions. After serious clinical simptoms at the beginning both adolescents recovered well and after three days of medical supervision they were released from the hospital without any consequences harmful to their health.   

  15. The PWR cores management; La gestion des coeurs REP

    Energy Technology Data Exchange (ETDEWEB)

    Barral, J.C. [Electricite de France (EDF), 75 - Paris (France); Rippert, D. [CEA Cadarache, Departement d' Etudes des Reacteurs, DER, 13 - Saint-Paul-lez-Durance (France); Johner, J. [CEA/Cadarache, Dept. de Recherches sur la Fusion Controlee, DRFC, 13 - Saint-Paul-lez-Durance (France)] [and others

    2000-01-25

    During the meeting of the 25 january 2000, organized by the SFEN, scientists and plant operators in the domain of the PWR debated on the PWR cores management. The five first papers propose general and economic information on the PWR and also the fast neutron reactors chains in the electric power market: statistics on the electric power industry, nuclear plant unit management, the ITER project and the future of the thermonuclear fusion, the treasurer's and chairman's reports. A second part offers more technical papers concerning the PWR cores management: performance and optimization, in service load planning, the cores management in the other countries, impacts on the research and development programs. (A.L.B.)

  16. Dynamiques de gestion transfrontalière des forêts du bassin du Congo: une analyse du Traité relatif à la conservation et la gestion des écosystèmes forestiers d'Afrique centrale - Comment

    Directory of Open Access Journals (Sweden)

    Samuel Assembe Mvondo

    2006-06-01

    Full Text Available Les dynamiques de gestion transfrontalière des forêts du bassin du Congo, viennent de franchir une nouvelle étape de leur construction, à travers l'adoption du Traité relatif à la conservation et la gestion des écosystèmes forestiers d'Afrique centrale le 5 février 2005 à Brazzaville. Le passage en revue des principales dispositions de cet accord international fait tout d'abord apparaître que les principaux engagements pris dans le traité par les Etats membres, sont conformes mutatis mutandis à l'esprit des principes de gestion durable des forêts élaborés par la communauté internationale. Ensuite, l'originalité de ce traité réside dans le fait que c'est le premier texte juridiquement contraignant consacré entièrement à la gestion durable des forêts. Enfin, ce papier relève d'autres traits forts du texte de Brazzaville, ainsi qu'un certain nombre de faiblesses qui sont susceptibles de freiner sa bonne application.

  17. Comparing Two Operating Configurations in a Full-Scale Arsenic Removal Plant. Case Study: Guatemala

    Directory of Open Access Journals (Sweden)

    Sofía E. Garrido Hoyos

    2013-06-01

    Full Text Available The present study was conducted in Naranjo County located in the municipality of Mixco, Guatemala. The water supply source comes from two wells with a maximum flow of 25.24 and 33.44 L·s−1. The main problem with this source is the high arsenic concentration—between 0.1341 and 0.1671 mg·L−1. The aim of this study was to conduct laboratory tests, basic engineering and supervision of the construction and evaluation of an operations plant using two configurations, A (low-rate sedimentation and ceramic filter and B (high-rate sedimentation and clinoptilolite filter, to remove arsenic present in water for human use and consumption. This plant supplies water to Naranjo County in Mixco, Guatemala (5000 inhabitants. First, a laboratory Jar Test was performed to evaluate arsenic removal efficiency. And second, a conventional clarification plant was then built (design flow: 25.24 L·s−1. The best results were achieved with configuration B, with the following reagents and dosage as defined by the laboratory tests: 10 mg L−1 ferric chloride as coagulant; 1.8 mg·L−1 CH-polyfocal as flocculant and 0.4 mg L−1 MIT03 as color removal; 1 mg L−1 sodium hypochlorite as oxidant and adjusting pH to ≈7.0 with sodium hydroxide. Once the plant began operating, the efficiency of the treatment process was evaluated. The maximum elimination efficiencies were obtained 100% for turbidity (0 UTN, 89.54% (3.66 UPt-Co for color and 96.80% (0.005 mg L−1 for arsenic, values that comply with Guatemalan standards. For this case, the relation between Fe(III dosage/mg and As(V removal was 1:46.

  18. Incense and ritual plant use in Southwest China: A case study among the Bai in Shaxi

    Directory of Open Access Journals (Sweden)

    Staub Peter O

    2011-12-01

    Full Text Available Abstract Background Ritual and religious uses of plant-derived smoke are widespread throughout the world. Our research focuses on Southwest China, where the use of incense is very common. This study aims to document and analyze contemporary ritual plant uses by the Bai people of Shaxi Township (Jianchuan County, Dali Prefecture, Yunnan Province, including their related ethnobotanical knowledge, practices, and beliefs. Methods The present study builds on previous ethnobotanical research in Shaxi, which started in 2005. Interviews focusing on ritual plant use and associated beliefs were carried out with a total of 44 Bai informants in September 2009 and May and June 2010. The results are supplemented with information on the local religion collected from June to December 2010. All documented species were vouchered, and are deposited at the herbaria of Kunming Institute of Botany (KUN and the University of Zurich (Z/ZT. Results A total of 17 species have been documented for use in incense. They are always used in mixtures and are either burned in the form of powders in a censer or as joss sticks. The smell of the smoke is the main criterion for the selection of the incense plants. Incense is burned for communication with spiritual entities at graves, temples, and cooking stoves, as well as for personal well-being. Cupressus funebris Endl., Gaultheria fragrantissima Wall., and Ligustrum sempervirens (Franch. Lingelsh. are the most important incense species. Others serve as substitutes or are used to stretch incense powders. Conclusions In Shaxi the use of incense mixtures at the household and community level is regularly practiced for communication with ancestors, ghosts, and deities and in some cases to strengthen self-awareness. Some of the documented species are widely used in central Asia and Europe, hinting at the well documented knowledge exchange that occurred in Shaxi, which was a major hub along the influential Southern Silk Road.

  19. Gestion communautaire des ressources naturelles au Bénin (Afrique de l’Ouest : le cas de la vallée du Sitatunga

    Directory of Open Access Journals (Sweden)

    Pricette Dovonou-Vinagbè

    2009-09-01

    réalité, il importe qu’un partenariat soit établi entre les différents acteurs liés à la gestion de la vallée du Sitatunga en particulier et des milieux humides en général : les ONG, l’État et les communautés locales.Bénin, a country in West Africa is actually facing the destruction of its wetlands, especially those in the southern part of the country. The wetlands which their richness in natural resources are important for both human and wildlife are also threatened by many factors. The most important threat is population pressure. Although recognised as Ramsar sites, the destruction continues. In 1995, the Government has decided to create community protected areas in this part of the country. The objective of this research is to understand the main challenges around the community management of wetlands. The case of the Sitatunga valley, in south Bénin has been studied. The methodology used consisted on interviews with stakeholders during a period of 3 months. The results show that, although the good intentions of community management, its practical application is not easy, and reveal many difficulties in its practical application. The site although rich in biodiversity and used as refuge for several species, is regarded as useless even harmful by the bordering populations, which are more worried by their poverty state. The traditions and values formerly allotted to the wetlands almost disappeared and individualism is growing. It is important to take into account all these factors to truly hope to preserve these wetlands. The study shows that management of the wetlands on a Beninese scale is also difficult. Indeed, the government through its structures struggles to coordinate its activities. It is the same for NGOs. The situation is accentuated by the poor relations between NGOs and government institutions which consider each other more as adversaries than as partners. This affects the effectiveness of the undertaken activities. It is then

  20. Early Validation of Automation Plant Control Software using Simulation Based on Assumption Modeling and Validation Use Cases

    Directory of Open Access Journals (Sweden)

    Veronika Brandstetter

    2015-10-01

    Full Text Available In automation plants, technical processes must be conducted in a way that products, substances, or services are produced reliably, with sufficient quality and with minimal strain on resources. A key driver in conducting these processes is the automation plant’s control software, which controls the technical plant components and thereby affects the physical, chemical, and mechanical processes that take place in automation plants. To this end, the control software of an automation plant must adhere to strict process requirements arising from the technical processes, and from the physical plant design. Currently, the validation of the control software often starts late in the engineering process in many cases – once the automation plant is almost completely constructed. However, as widely acknowledged, the later the control software of the automation plant is validated, the higher the effort for correcting revealed defects is, which can lead to serious budget overruns and project delays. In this article we propose an approach that allows the early validation of automation control software against the technical plant processes and assumptions about the physical plant design by means of simulation. We demonstrate the application of our approach on the example of an actual plant project from the automation industry and present it’s technical implementation

  1. Elaboration d'un plan de gestion des solvants dans le secteur de l'emballage souple

    OpenAIRE

    Collet, Serge

    1997-01-01

    National audience; Le projet de directive europeenne sur la limitation des emissions de composes organiques volatils des activites industrielles utilisatrices de solvants, prevoit la realisation d'un plan de gestion des solvants sur une periode de 12 mois consecutifs afin d'estimer les emissions fugitives de solvants sur l'ensemble d'une installation.

  2. Relaciones entre dispositivos administrativos y arreglos familiares en la gestion de la infancia "con derechos vulnerados". Una aproximacion etnografica

    National Research Council Canada - National Science Library

    Barna, Agustin

    2014-01-01

    ...". Exploro aqui algunas implicancias de las renovadas configuraciones que asumen las relaciones entre los dispositivos administrativos y las familias y adultos "responsables" del entorno cercano de los ninos. Esta reconfiguracion se caracteriza por una complementariedad asimetrica entre administradores y administrados que resulta constitutiva de los modos de gestion de la infancia en la contemporaneidad.

  3. Focus – SIC-2, un logiciel pour la gestion des canaux, rivières et fleuves

    OpenAIRE

    DORCHIES, David ; BAUME, Jean-Pierre ; MALATERRE, Pierre-Olivier

    2013-01-01

    Le logiciel SIC2, développé à Irstea, est un modèle de simulation du comportement hydraulique des canaux d’irrigation. Outil efficace, il permet aussi bien aux gestionnaires d’un canal qu’aux chercheurs, de simuler rapidement un grand nombre de configurations hydrauliques tant au niveau de la conception que de la gestion.

  4. Quelle organisation territoriale pour une gestion durable des sangliers? Un exemple pyrénéen

    Directory of Open Access Journals (Sweden)

    Yves Poinsot

    2009-07-01

    Full Text Available La prolifération des grands ongulés réclame une gestion cynégétique rigoureuse, du fait de l’accroissement des dégâts agricoles et forestiers. Le plan de chasse est piloté à l’échelle d’unités de gestion (UG regroupant quelques dizaines de communes. La territorialité du sanglier impose une gestion intercommunale, illustrée dans le cadre de l’UG 15 (piémont des Pyrénées-Atlantiques, où les configurations écologiques et territoriales favorisent parfois l’émergence de ce niveau supra-communal. Le contraire est aussi observé, en fonction des particularités du découpage communal. On remarque aussi des accords techniques entre équipes de chasseurs pourtant rivales. La pertinence d'un regard géographique sur la gestion sociale de la grande faune est ainsi soulignée.

  5. In vitro antimicrobial activity of ten medicinal plants against clinical isolates of oral cancer cases

    Directory of Open Access Journals (Sweden)

    Kaushal Vivek

    2011-05-01

    Full Text Available Abstract Background Suppression of immune system in treated cancer patients may lead to secondary infections that obviate the need of antibiotics. In the present study, an attempt was made to understand the occurrence of secondary infections in immuno-suppressed patients along with herbal control of these infections with the following objectives to: (a isolate the microbial species from the treated oral cancer patients along with the estimation of absolute neutrophile counts of patients (b assess the in vitro antimicrobial activity medicinal plants against the above clinical isolates. Methods Blood and oral swab cultures were taken from 40 oral cancer patients undergoing treatment in the radiotherapy unit of Regional Cancer Institute, Pt. B.D.S. Health University, Rohtak, Haryana. Clinical isolates were identified by following general microbiological, staining and biochemical methods. The absolute neutrophile counts were done by following the standard methods. The medicinal plants selected for antimicrobial activity analysis were Asphodelus tenuifolius Cav., Asparagus racemosus Willd., Balanites aegyptiaca L., Cestrum diurnum L., Cordia dichotoma G. Forst, Eclipta alba L., Murraya koenigii (L. Spreng. , Pedalium murex L., Ricinus communis L. and Trigonella foenum graecum L. The antimicrobial efficacy of medicinal plants was evaluated by modified Kirby-Bauer disc diffusion method. MIC and MFC were investigated by serial two fold microbroth dilution method. Results Prevalent bacterial pathogens isolated were Staphylococcus aureus (23.2%, Escherichia coli (15.62%, Staphylococcus epidermidis (12.5%, Pseudomonas aeruginosa (9.37%, Klebsiella pneumonia (7.81%, Proteus mirabilis (3.6%, Proteus vulgaris (4.2% and the fungal pathogens were Candida albicans (14.6%, Aspergillus fumigatus (9.37%. Out of 40 cases, 35 (87.5% were observed as neutropenic. Eight medicinal plants (A. tenuifolius, A. racemosus, B. aegyptiaca, E. alba, M. koenigii, P. murex R

  6. SISTEMA INTEGRAL DE INFORMACION FINANCIERA PARA OPTIMIZAR LA GESTION PÚBLICA DE LAS ASOCIACIONES COOPERATIVAS BANCOS COMUNALES, EN EL ESTADO NUEVA ESPARTA

    National Research Council Canada - National Science Library

    EUCARIS MARIA RODRIGUEZ

    2016-01-01

      La investigacion consistio en proponer a las Asociaciones Cooperativas Bancos Comunales del Municipio Diaz del Estado Nueva Esparta, un sistema de informacion financiera, que les permita mejorar sus gestiones públicas...

  7. Gestion des résultats comptables : l'influence de la politique financière, de la performance et du contrôle

    OpenAIRE

    Mard, Yves

    2004-01-01

    International audience; Cette recherche porte sur les déterminants de la gestion des résultats au sein des entreprises françaises cotées. Nous étudions la relation entre la gestion des résultats (mesurée à partir des accruals) et plusieurs caractéristiques de la firme (politique financière, performance boursière, contrôle) afin de tester sept hypothèses de gestion des résultats. Les analyses confirmant plusieurs hypothèses et suggèrent que les déterminants de la gestion des résultats dépenden...

  8. De los conceptos de administracion, gobierno, gerencia, gestion y management: algunos elementos de corte epistemologico y aportes para una mayor comprension

    National Research Council Canada - National Science Library

    Sanabria R., Mauricio

    2007-01-01

    ...), algunos elementos basicos para la mejor comprension de los conceptos de administracion, gerencia, gobierno, gestion y management, y de la discusion existente en el campo administrativo y en nuestro...

  9. Gestion des résultats comptables : l'influence de la politique financière, de la performance et du contrôle

    OpenAIRE

    Mard, Yves

    2004-01-01

    International audience; Cette recherche porte sur les déterminants de la gestion des résultats au sein des entreprises françaises cotées. Nous étudions la relation entre la gestion des résultats (mesurée à partir des accruals) et plusieurs caractéristiques de la firme (politique financière, performance boursière, contrôle) afin de tester sept hypothèses de gestion des résultats. Les analyses confirmant plusieurs hypothèses et suggèrent que les déterminants de la gestion des résultats dépenden...

  10. Gestion de procesos de negocio BPM (Business Process Management), TICs y crecimiento empresarial: ?que es BPM y como se articula con el crecimiento empresarial?

    National Research Council Canada - National Science Library

    Diaz Piraquive, Flor Nancy

    2008-01-01

    ... (Business Process Management) apoyen estas condiciones, convirtiendo la gestion de procesos de negocios en una tecnica estrategica, que permite generar y controlar "cambios" de forma agil, oportuna, confiable y de calidad...

  11. Gestion de procesos de negocio BPM (Business Process Management), TICs y crecimiento empresarial: ?que es BPM y como se articula con el crecimiento empresarial?

    National Research Council Canada - National Science Library

    Diaz Piraquive, Flor Nancy

    2008-01-01

    ... con parametros de eficiencia y eficacia. Las soluciones tecnologicas solicitadas por los clientes para mantener y aprovechar el crecimiento empresarial de largo plazo en gestion, hacen que soluciones como BPM...

  12. Estimating population exposure to power plant emissions using CALPUFF: a case study in Beijing, China

    Science.gov (United States)

    Zhou, Ying; Levy, Jonathan I.; Hammitt, James K.; Evans, John S.

    Epidemiological studies have shown a significant association between ambient particulate matter (PM) exposures and increased mortality and morbidity risk. Power plants are significant emitters of precursor gases of fine particulate matter. To evaluate the public health risk posed by power plants, it is necessary to evaluate population exposure to different pollutants. The concept of intake fraction (the fraction of a pollutant emitted that is eventually inhaled or ingested by a population) has been proposed to provide a simple summary measure of the relationship between emissions and exposure. Currently available intake fraction estimates from developing countries used models that look only at the near field impacts, which may not capture the full impact of a pollution source. This case study demonstrated how the intake fraction of power plant emissions in China can be calculated using a detailed long-range atmospheric dispersion model—CALPUFF. We found that the intake fraction of primary fine particles is roughly on the order of 10 -5, while the intake fractions of sulfur dioxide, sulfate and nitrate are on the order of 10 -6. These estimates are an order of magnitude higher than the US estimates. We also tested how sensitive the results were to key assumptions within the model. The size distribution of primary particles has a large impact on the intake fraction for primary particles while the background ammonia concentration is an important factor influencing the intake fraction of nitrate. The background ozone concentration has a moderate impact on the intake fraction of sulfate and nitrate. Our analysis shows that this approach is applicable to a developing country and it provides reasonable population exposure estimates.

  13. The artificial recharge as a tool for the water resources management: case of the aquifer recharge system of Geneva (Switzerland); La recarga artificial de acuifero como ayuda a la gestion de los recursos hidricos; el ejemplo del sistema de Ginebra (Suiza)

    Energy Technology Data Exchange (ETDEWEB)

    Cobos, G. de los

    2009-07-01

    The drinking water supply for the Geneva area comes partly (80%) from the lake Geneva and partly (20%) from a large transboundary aquifer called Genevois aquifer. During the 70's, over pumping lowered the groundwater level by more than 7m. Artificial recharge has been carried out from the Arve river into the Genevois aquifer in order to maintain the groundwater level and enable water resources management. Located near the Arve river, this artificial recharge plant started its activity in 1980. For the last almost 30 years the artificial recharge system of Geneva has brought over 230 hm{sup 3} of treated water into the Genevois aquifer. The impacts of the recharge on the Genevois aquifer and on the aquifer management are described in this paper. (Author) 20 refs.

  14. A fatal case of hydrogen sulfide poisoning in a geothermal power plant.

    Science.gov (United States)

    Kage, S; Ito, S; Kishida, T; Kudo, K; Ikeda, N

    1998-07-01

    An adult man entered an oil separator room to remove waste oil from a vacuum pump in a geothermal power plant. He suddenly collapsed and died soon after. Since hydrogen sulfide gas was detected in the atmosphere at the scene of the accident, poisoning by this gas was suspected and toxicological analysis of sulfide and thiosulfate in blood, brain, lung, femoral muscle was made using the extractive alkylation technique combined with gas chromatography/mass spectrometry (GC/MS). The concentrations of sulfide in these tissues were similar to those previously reported for fatal cases of hydrogen sulfide gas. The concentration of thiosulfate in the blood was at least 48 times higher than the level in control samples. Based on these results, the cause of death was attributed to hydrogen sulfide gas poisoning.

  15. The potential of phytoremediation using hyperaccumulator plants: a case study at a lead-zinc mine site.

    Science.gov (United States)

    Lorestani, Bahareh; Cheraghi, Mehrdad; Yousefi, Nafiseh

    2012-09-01

    Contamination with heavy metals is one of the most pressing threats to water and soil resources, as well as human health. Phytoremediation might potentially be used to remediate metal-contaminated sites. A major advance in the development of phytoremediation for heavy metal affected soils was the discovery of heavy metal hyperaccumulation in plants. This study applied several established criteria to identify hyperaccumulator plants. A case study was conducted at a mining area in the Hamedan province in the west central region of Iran. The results indicated that plant metal accumulation differed among species and plant parts. Plant species grown in substrata with elevated metal levels contained significantly higher metal levels. Using the most common criteria, Euphorbia macroclada and Centaurea virgata can be classified as hyperaccumulators of specific heavy metals measured in this study and they might potentially be used for the phytoremediation of contaminated soils.

  16. Gestion inter-organisationnelle des connaissances : le cas des nanotechnologies

    OpenAIRE

    Pérez Martelo, Constanza,

    2013-01-01

    The thesis deals with knowledge management processes and associated practices in interorganizational contexts. With an insight of intellectual craftsmanship, we focus on the case study of Nanoscience and Nanotechnology (NST) that involves a wide diversity of participant organizations and knowledge fields. By studying three specific contexts –a Colombian network of research groups, a European collaborative project, and a laboratory of materials belonging to a micro and nanotechnology cluster o...

  17. ENVIRONMENTAL RISKS RELATED TO ACCIDENTS AT PULP AND PAPER PLANTS: THE CASE OF THE MANTUROVO PULP AND PAPER PLANT PROJECT

    Directory of Open Access Journals (Sweden)

    Maria Gunko

    2011-01-01

    Full Text Available The paper presents approaches to quantitative and spatial assessment of emergency environmental risks at new sites of pulp and paper production using mathematical statistics, probability theory, and cartographic modeling. Damage assessment is based on the type and sphere (atmosphere, soil, and underground and surface waters of impact. Although damage assessment considers governmentally approved methodology, the formula suggested for the assessment contains some suitable improvements. In addition, a brief characterization of technological process at pulp and paper plants provides objective substantiation of possible accident scenarios. Conclusions discuss economic and social benefits of pulp and paper plants versus their ecological disadvantages.

  18. C3I for Crisis, Emergency and Consequence Management (C3I pour la gestion des crises, des urgences et de leurs consequences)

    Science.gov (United States)

    2009-05-01

    Synthèse Les évènements du 11 septembre 2001 ont placé au premier plan des préoccupations de nombreuses nations les questions d’anti- terrorisme et de...contre- terrorisme , de sécurité nationale/publique et de réponse collective face aux situations d’urgence (à la fois gestion des crises et gestion de leurs

  19. Environmental management system; El sistema de Gestion Medioambiental

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    An Environmental Management System was implemented in ANAV in 1999, including the two nuclear sites of the Asco and Vandellos II nuclear power plants. This implementation entailed formulation of the ANAV Environmental Policy, preparation of an Environmental Management Plan (PLAGMA) supported by the Environmental Aspects Manuals (MASMA) of each site and their operating procedures, modification of the organizational structure to create the Environment Unit, in charge of implementing the SIGEMA, and the Environment Committee, the governing body that reviews the results obtained and environmental goals to be achieved, and direct involvement of all the different ANAV organization in continuous improvement of the SIGEMA implementation. Special attention is paid to evolution of the environmental indicators, to communication and specific training in environmental issues, and to waste management and the different programs for increasing waste recycling and assessment, as well as to minimization programs. The article details the different approaches used to improve the environmental results in these last five years, which have allowed ANAV to maintain the ISO-14001 Certification since 1999. (Author)

  20. Towards a more holistic research approach to plant conservation: the case of rare plants on oceanic islands.

    Science.gov (United States)

    Silva, Luís; Dias, Elisabete Furtado; Sardos, Julie; Azevedo, Eduardo Brito; Schaefer, Hanno; Moura, Mónica

    2015-06-11

    Research dedicated to rare endemic plants is usually focused on one given aspect. However, holistic studies, addressing several key issues, might be more useful, supporting management programmes while unravelling basic knowledge about ecological and population-level processes. A more comprehensive approach to research is proposed, encompassing: phylogenetics/systematics, pollination biology and seed dispersal, propagation, population genetics, species distribution models (SDMs), threats and monitoring. We present a holistic study dedicated to Veronica dabneyi Hochst. ex Seub., an endangered chamaephyte endemic to the Azores. Veronica dabneyi was mainly found associated with other endemic taxa; however, invasive plants were also present and together with introduced cattle, goats and rabbits are a major threat. Most populations grow at somewhat rocky and steep locations that appeared to work as refuges. Seed set in the wild was generally high and recruitment of young plants from seed seemed to be frequent. In the laboratory, it was possible to germinate and fully develop V. dabneyi seedlings, which were planted at their site of origin. No dormancy was detected and time for 50 % germination was affected by incubation temperature. Eight new microsatellite markers were applied to 72 individuals from 7 sites. A considerable degree of admixture was found between samples from the two islands Flores and Corvo, with 98 % of the genetic variability allocated within populations. Levels of heterozygosity were high and no evidence of inbreeding was found. Species distribution models based on climatic and topographic variables allowed the estimation of the potential distribution of V. dabneyi on Flores and Corvo using ecological niche factor analysis and Maxent. The inclusion of land-use variables only slightly increased the information explained by the models. Projection of the expected habitat in Faial largely coincided with the only historic record of V. dabneyi on that island

  1. A sensitivity analysis for the design of small-scale hydropower plant: Kayabogazi case study

    Energy Technology Data Exchange (ETDEWEB)

    Aslan, Yilmaz; Yasar, Celal [Electrical and Electronics Engineering Department, Engineering Faculty, Dumlupinar University, 43100 Kutahya (Turkey); Arslan, Oguz [Mechanical Engineering Department, Engineering Faculty, Dumlupinar University, 43100 Kutahya (Turkey)

    2008-04-15

    In this study, the feasibility of hydroelectric power generation from the Kayabogazi dam, which was built by The State Hydraulic Works of Turkey (DSI) in 1987 in the town of Tavsanli, Kutahya, for irrigation and flood control purposes is investigated. Since a certain amount of water is supplied from the dam to the town of Tavsanli as drinking water, that amount is deducted from the total and is not allowed to be used in the process of electric power generation. By evaluating the amount of incoming water to the Kayabogazi dam in the period of 1995 and 2003 years, the most agreeable turbine type and size is decided for a small hydropower plant (SHP). In this purpose, seven different cases have been taken into consideration. As a conclusion, the case used three turbines which one of them is installed to utilize from the higher flow rates has been determined as the best configuration. In this study, a power generation ranging between 0.313 and 4.997 MW has been achieved in the viewpoint of installed capacity for Kayabogazi dam. Hence, it has been estimated an electricity generation up to 10,579 MWh per annum. (author)

  2. Fossil fuel-fired power generation. Case studies of recently constructed coal- and gas-fired plants

    Energy Technology Data Exchange (ETDEWEB)

    Henderson, C. [IEA Clean Coal Centre, London (United Kingdom)

    2007-10-23

    To meet future energy demand growth and replace older or inefficient units, a large number of fossil fuel-fired plants will be required to be built worldwide in the next decade. Yet CO{sub 2} emissions from fossil-fired power generation are a major contributor to climate change. As a result, new plants must be designed and operated at highest efficiency both to reduce CO{sub 2} emissions and to facilitate deployment of CO{sub 2} capture and storage in the future. The series of case studies in this report, which respond to a request to the IEA from the G8 Summit in July 2005, were conducted to illustrate what efficiency is achieved now in modern plants in different parts of the world using different grades of fossil fuels. The plants were selected from different geographical areas, because local factors influence attainable efficiency. The case studies include pulverized coal combustion (PCC) with both subcritical and supercritical (very high pressure and temperature) steam turbine cycles, a review of current and future applications of coal-fuelled integrated gasification combined cycle plants (IGCC), and a case study of a natural gas fired combined cycle plant to facilitate comparisons. The results of these analyses show that the technologies for high efficiency (low CO{sub 2} emission) and very low conventional pollutant emissions (particulates, SO{sub 2}, NOx) from fossil fuel-fired power generation are available now through PCC, IGCC or NGCC at commercially acceptable cost. This report contains comprehensive technical and indicative cost information for modern fossil fuel-fired plants that was previously unavailable. It serves as a valuable sourcebook for policy makers and technical decision makers contemplating decisions to build new fossil fuel-fired power generation plants.

  3. Processus territoriaux et gestion de l’eau en Camargue gardoise

    Directory of Open Access Journals (Sweden)

    Daniel Petit

    2006-02-01

    Full Text Available Dans la mouvance des grandes mutations des années 1960-1970 en Camargue gardoise et face à l’obsolescence du Traité des Marais qui réglait la gestion collective des niveaux d’eau, les acteurs économiques liés à l’eau se sont positionnés sur des logiques individualistes. L’eau est devenue l’objet de maints conflits avec de graves conséquences sur les ressources et les milieux. La mise en œuvre d’une Charte de l’environnement et d’un SAGE au début des années 1990 a constitué les prémices du retour du « collectif » dans la gestion de l’eau. Mais on est encore loin de l’eau comme vecteur d’une construction territoriale à travers une communauté de projets liée à l’eau. Dans ce contexte, les crues de 2002 et 2003 sont apparues comme des révélateurs des inadéquations territoriales en cas de gestion de crise. Elles montrent que les politiques de l’eau ne peuvent faire l’impasse d’une réflexion sur l’articulation entre les différents espaces de décision et de solidarité.Next to the major changes which occurred in the « Camargue gardoise » during sixties and seventies, and because of the becoming obsolete « Traité des Marais » which was regulating the collective management of water levels, the economic actors dealing with water concerns have been developing individualistic policies. Water has became a source of many conflicts implying serious consequences on resources and natural spaces. The achievement of an environmental chart and of a « SAGE » at the beginning of the nineties were the ground baits for a come back to a collective form of water management. However, it’s a long way to consider water as a vector of territorial construction thanks to collective agreements about projects dealing with water. In the following context, the 2002 and 2003 floods have revealed territorial limitations to manage this kind of crisis. They have shown that the water policies have to take inot

  4. Dynamique institutionnelle des transferts de gestion dans le corridor Fandriana-Vondrozo

    Directory of Open Access Journals (Sweden)

    Thierry Ganomanana

    2011-06-01

    Full Text Available Ten years after their creation, the operation of the community-based natural resource management policy named ‘transfert de gestion’ – the 1996 GELOSE law (applied to any kind of natural resources, and the 2001 GCF decree (only applied to forests – remains little understood. The forest corridor linking Ranomafana and Andringitra National Parks has been extended south, and since 2006 the Fandriana-Vondrozo Corridor has been established as a new protected area within the Madagascar Protected Area System. Eighty-two sites of transfert de gestion have been created since 2001 in the Fandriana-Vondrozo Corridor and Randriamahaleo III are managed by local community associations named COBA. Management is determined by law but is locally adapted to each site. We analyze the dynamic of the community forest management system using six variables and 19 modes: year of creation (five modes, legal form of management (two modes, locality (two modes, principal NGO partners (five modes, management objective (two modes, and surface area of the transferred site (three modes. There are four institutions in charge of forest management: local community associations (COBA, which manage the forest in their territory; the Forest Service (Eaux et Forêt representing the State, which controls this management; the commune, the smallest decentralized unit of the State, which manages the whole communal territory including forests; and NGOs, which facilitate the process. In order to investigate institutional tendencies, the sites of transfert de gestion are analyzed using Multiple Correspondence Analysis. The sites are distributed in the first two factorial plans with percentage variance of 18.5 % and 15.8 % according to their objectives: 1 pure conservation, and 2 economic development. Three types of NGO are distinguished by the form and duration of their support to COBA. The NGOs with greatest weight in the process are those which support the transfert de gestion

  5. Financiarisation de la gestion et concentration des risques : une étude de cas d'un gestionnaire de fonds public

    Directory of Open Access Journals (Sweden)

    Frédéric Hanin

    2012-05-01

    Full Text Available Cet article propose une analyse de la financiarisation de la gestion à partir de l’étude du cas de la principale institution financière publique au Canada, la Caisse de Dépôt et Placement du Québec. Cette évolution de la gestion est documentée ici à travers deux éléments. Le premier élément est le modèle d'affaire mis de l'avant par l'institution avec l'arrivée d'un nouveau PDG en 2002 qui repose sur une nouvelle interprétation du mandat de l'institution et de sa responsabilité sociétale. Le second élément est la réforme de l'organisation interne de la Caisse avec l'adoption d'un modèle organisationnel de conglomérat financier basé sur l'utilisation indirecte des produits dérivés ou indirect à travers des produits structurés. Cette étude de cas permet également d’analyser les transformations récentes des modes de gouvernance dans les institutions financières.This article proposes an analysis of the financialization of public pension’s asset managers through the case study of the most important one in Canada. The 2008 fallout is the result of structural changes in the regulation and management of the organization. Two elements are here at the core of financialization. First, the new business model was built on a different analysis of the mission of the institution. Second, the creation of "value added" was expected by the use of interactions between portfolios, facilitated by the development of derivatives and structured financial products. This case study is also interesting to analyze the transformation of the governance structure in the financial sector.

  6. Protamine sulfate precipitation method depletes abundant plant seed-storage proteins: A case study on legume plants.

    Science.gov (United States)

    Kim, Yu Ji; Wang, Yiming; Gupta, Ravi; Kim, So Wun; Min, Chul Woo; Kim, Yong Chul; Park, Ki Hun; Agrawal, Ganesh Kumar; Rakwal, Randeep; Choung, Myoung-Gun; Kang, Kyu Young; Kim, Sun Tae

    2015-05-01

    Depletion of abundant proteins is one of the effective ways to improve detection and identification of low-abundance proteins. Our previous study showed that protamine sulfate precipitation (PSP) method can deplete abundant ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) from leaf proteins and is suitable for their in-depth proteome investigation. In this study, we provide evidence that the PSP method can also be effectively used for depletion of abundant seed-storage proteins (SSPs) from the total seed proteins of diverse legume plants including soybean, broad bean, pea, wild soybean, and peanut. The 0.05% protamine sulfate (PS) was sufficient to deplete major SSPs from all legumes tested except for peanut where 0.1% PS was required. SDS-PAGE, Western blotting and 2DE analyses of PS-treated soybean and peanut seed proteins showed enriched spots in PS-supernatant than total proteins. Coefficient of variation percentage (%CV) and principal component analysis of 2DE spots support the reproducibility, suitability, and efficacy of the PSP method for quantitative and comparative seed proteome analysis. MALDI-TOF-TOF successfully identified some protein spots from soybean and peanut. Hence, this simple, reproducible, economical PSP method has a broader application in depleting plant abundant proteins including SSPs in addition to RuBisCO, allowing discussion for comprehensive proteome establishment and parallel comparative studies in plants.

  7. La gestion de la tecnologia: Modelos y sus elementos clave

    Directory of Open Access Journals (Sweden)

    Juan Carlos Solis Galvan

    2010-07-01

    Full Text Available A new interdisciplinary field that combines science, engineering knowledge management and practice has been incorporated into business models and is called Management of Technology (MOT (Mezher, Nasrallahand Allemedine, 2006. Technology is defined as all the knowledge, products, processes, tools, methods and systems used to create goods and provide services. In general speaking the technology is the way we do things and MOT is the key to competitiveness and wealth creation (Khalil, 2000. The elements that make up the various models are key to success in results, so in this article we present different models and its main elements to identify what are those key elements, including innovation. As Peter Drucker said (Drejer, 2002, p.6 the concept “innovation" means both a process and its outcome. Following the definition given by the European Commission on "The Green Book on Innovation (European Commission, 1995, innovation is the transformation of an idea into a marketable product or service new or improved, a process for manufacturing or distribution operating, new or improved, or a new method of providing a social service. It is therefore a definition linked to the first of the meanings, the innovation as a process. However, when the concept innovation refers to the product, equipment, process or service improvements on the market, the emphasis is placed on the outcome of the process. In this case, innovation is considered as such when introduced into the market (product innovation or used in the process of producing goods or providing services (process innovation.

  8. La gestion territoriale de l'activité agricole dans un village lorrain

    Directory of Open Access Journals (Sweden)

    M. Benoit

    1990-12-01

    Full Text Available Les relations que les agriculteurs d’un village lorrain entretiennent avec leur territoire sont dynamiques. En un siècle, la répartition des cultures est devenue concentrique, centrée sur le bâti villageois, et la «sortie» des bâtiments agricoles de leur «gangue» villageoise a été un facteur décisif de cette dynamique. Les conséquences de cette actuelle gestion territoriale de l’activité agricole sont multiples et concernent le fonctionnement interne aux exploitations du village, les transferts de fertilité, donc les risques de pollution des eaux souterraines, et la création d’un paysage.

  9. Sigand : une application SIG sous androïd (tablette de la gestion des chantiers

    Directory of Open Access Journals (Sweden)

    CHAKIB SAFAR BATI

    2016-12-01

    Full Text Available L’introduction de données terrain pour les études environnementales ou de gestion de l’espace, régionales ou locales est une nécessité incontournable pour la validation des traitements et des interprétations mais aussi pour fournir des compléments d’informations aux divers travaux. Mais ce retour terrain est également de plus en plus demandé pour les gestionnaires de chantiers et de projets qui ont une exigence de contrôle ou de suivi et donc d’une information temps réel sur l’avancement des travaux, autrement pour introduire de nouvelles informations sur la base de données géoréférencées. Les avancées technologiques en matière de manipulation de l’information géographique (GPS, tablette graphique, téléphone portable, réalité augmentée permettent d’espérer la mise à dispositiondes professionnels, voire d’un plus large public, des outils adéquats pour de tels travaux. Actuellement, les outils d’élaboration, de gestion et d’exploitation des bases de données géographiques (solutions SIG ne sont pas encore complètement opérationnels en version « tablette » ; des applications telles que Qgis ou ArcGis sous Androïd attendent encore des développements. Nous présentons ici la première version d’une application SIG sous Androïd (disponible sur tablette pour la gestion en temps réel des chantiers qui permet de charger des couches vectorielles et de les mettre à jour sur le terrain en fonction de l’observation directe ; les couches (préalablement géoréférencées sont projetées sur des fonds cartographiques fournis par un serveur cartographique Google Maps (Route, Satellite, terrain; dans le cas d’absence de connexion internet, le fond cartographique est ramené d’un cache. Nous utilisons SpatialiteAndroïd pour le stockage et la manipulation des données géographiques. Le contrôleur de cartes Google Maps est employé pour afficher en mode cartographique les données stockées dans

  10. Droit de propriété et gestion des conflits agriculture - environnement

    OpenAIRE

    FACCHINI, François

    2008-01-01

    Ce chapitre souhaite montrer que les solutions à la gestion des conflits entre les usages agricoles et environnementaux sous estiment l'efficacité des solutions privées (marchandes ou non marchandes). Il soutient que le respect des droits de propriété privée est un moyen de gérer et de prévenir les conflits d'usage en général et en matière agricole en particulier. Il se fonde sur trois propositions inspirées de la théorie économique des droits de propriété. 1) La principale cause des conflits...

  11. Aspects institutionnels de la gestion durable de l’eau en Europe

    Directory of Open Access Journals (Sweden)

    Bernard Barraqué

    2004-11-01

    Full Text Available Paradoxalement, le continent où la gestion de la ressource en eau et des services publics est la meilleure est ignoré par le débat mondial centré sur la confrontation public-privé. En Europe, la ressource tend de plus en plus à échapper à la domainialisation et à la privatisation, et à devenir un patrimoine commun de ses usagers. Les différences institutionnelles sont typifiées à grands traits, mais on retrouve des tendances communes, que la Directive Cadre donne la chance de développer, si elle est appliquée intelligemment dans le sens du développement durable.

  12. La gestion par affaire et pilotage de la performance des organisations industrielles

    OpenAIRE

    Pendariees, Michel

    2006-01-01

    International audience; « Dans les systèmes industriels où les produits sont conçus et réalisés en fonction des spécifications des clients, la notion d'affaire est l'entité de base de la gestion industrielle » . Aujourd'hui, la recherche de solutions globales « sur mesure », prime sur la fourniture d'un catalogue de « belles solutions », comme réponse au client. Pour être performante, l'entreprise industrielle doit s'organiser par « affaire ». Ce qui lui permet de mieux s'adapter et maîtriser...

  13. Pour une sociologie critique de la gestion Towards a Critical Sociology of Management

    Directory of Open Access Journals (Sweden)

    Jean-Luc Metzger

    2011-03-01

    Full Text Available Comment définir et analyser sociologiquement la gestion ? C’est à cette interrogation que cet article propose des réponses. Dans cette perspective, les auteurs rappellent que la plupart des activités sociales sont dorénavant concernées par des dispositifs de gestion ou, à tout le moins, par des raisonnements qui empruntent à cette discipline. Aussi, en rendre compte avec les catégories de la sociologie, dans une visée de connaissance, et non d’aide à l’action gestionnaire, constitue-t-il un objectif légitime. C’est pourquoi, les auteurs construisent un programme détaillé de recherche, en trois axes, tenant compte aussi bien des acteurs, des visées, que des principes et dispositifs. Ils y voient un moyen d’apprécier les dynamiques à l’œuvre dans la gestionnarisation de la société et, peut-être, d’envisager des conceptions alternatives.The sociological definition and analysis of management is the authors concern. They recall how most social activities have now become management issues or at least coloured by them. Establishing this fact from a sociological angle, independently of concrete concerns, is a legitimate contribution to knowledge. Hence three programmatic research axes are proposed taking into account the actors, their goals, principles as well as ways and means. What is going forward in the managerialization of society can thus be exposed and alternatives eventually envisaged.

  14. gestion d'une agence de voyage selon le modele client/serveur avec swing et mySQL

    OpenAIRE

    BELGACEM, Hicham; BOUAZZA, Mohammed Reda

    2014-01-01

    L’objectif de ce modeste travail est le développement d'une application Client/serveur pour la gestion d’une agence de voyage en se basant sur SWING et MySQL. Dans le premier chapitre de notre rapport nous avons présenté les outils misent en place pour la réalisation de notre application, en commençant par le langage Java utilisés sous Netbeans, MySQL pour la gestion de base de données et phpMyAdmin pour créer la BDD. Le deuxième chapitre est consacré à la présentation de notre...

  15. LES PUBLICATIONS FRANCAISES EN COMPTABILITE ET CONTROLE DE GESTION SUR LA PERIODE 1994-2003 : UN ETAT DES LIEUX

    OpenAIRE

    Charreaux, Gérard; Schatt, Alain

    2005-01-01

    International audience; Cet article a pour objet de dresser un état des lieux de la production académique française en comptabilité et contrôle de gestion. Il met notamment en évidence, d'une part, les auteurs et les centres de recherche les plus productifs, d'autre part, les chercheurs français les plus influents. Il porte également sur les revues pour évaluer leur influence. Ce travail est fondé sur le recensement des articles publiés en comptabilité et contrôle de gestion dans les quatre r...

  16. La place de l'audit externe dans la gestion des résultats comptables. Cas des entreprises tunisiennes

    OpenAIRE

    Zehri, Fatma

    2006-01-01

    International audience; Dans cette étude, nous avons tenté de tester empiriquement, un modèle intégrateur de gestion du résultat comptable en se basant sur les apports de la théorie de l'agence et les réflexions sur le gouvernement des entreprises. A coté des hypothèses classiques de la théorie positive, les coûts politiques, la richesse des dirigeants et les clauses contractuelles, nous postulons que la gestion du résultat comptable est associée conjointement à la qualité d'audit externe et ...

  17. Le contrôle de gestion socio-économique de la performance:enjeux, conception et implantation

    OpenAIRE

    Laurent Cappelletti

    2006-01-01

    (VF)Cet article soulève la problématique de la conception et de l’implantation d’un contrôle de gestion socio-économique dans une entreprise, d’aide au pilotage de la performance sociale et de mesure de ses impacts sur la performance économique. A partir de recherches-interventions menées dans quatre entreprises de 1999 à 2003, l’article décrit les enjeux d’un pilotage de la performance sociale fondé sur un contrôle de gestion socio-économique. L’article identifie des conditions informationne...

  18. Optimal Site Selection of Tidal Power Plants Using a Novel Method: A Case in China

    Directory of Open Access Journals (Sweden)

    Yunna Wu

    2016-10-01

    Full Text Available The site selection plays an important role in the entire life cycle of a tidal power plant (TPP project. However, some problems decrease the evaluation quality of TPP site selection: (a suitable and effective methods are scarce since the TPP site selection involves multiple forms of data; (b there is no comprehensive evaluation index system due to the unilateralism of existing criteria. In this paper, we firstly propose a novel method based on interval number with probability distribution weighted operation and stochastic dominance degree. It takes all stakeholders’ preferences into consideration and can simultaneously deal with different forms of data in the TPP site selection; then, a comprehensive evaluation index system for TPP site selection is constructed on the basis of academic literature, feasibility research reports and expert opinions in different fields. It takes the factors of construction conditions, existing policies, social impacts as well as ecological and environmental impacts which reflects the inherent characteristics of TPP site selection fully into account. Finally, a Chinese case study is given to illustrate the applicability and effectiveness of the proposed method.

  19. Plant lipid environment and membrane enzymes: the case of the plasma membrane H+-ATPase.

    Science.gov (United States)

    Morales-Cedillo, Francisco; González-Solís, Ariadna; Gutiérrez-Angoa, Lizbeth; Cano-Ramírez, Dora Luz; Gavilanes-Ruiz, Marina

    2015-04-01

    Several lipid classes constitute the universal matrix of the biological membranes. With their amphipathic nature, lipids not only build the continuous barrier that confers identity to every cell and organelle, but they are also active actors that modulate the activity of the proteins immersed in the lipid bilayer. The plasma membrane H(+)-ATPase, an enzyme from plant cells, is an excellent example of a transmembrane protein whose activity is influenced by the hydrophilic compartments at both sides of the membrane and by the hydrophobic domains of the lipid bilayer. As a result, an extensive documentation of the effect of numerous amphiphiles in the enzyme activity can be found. Detergents, membrane glycerolipids, and sterols can produce activation or inhibition of the enzyme activity. In some cases, these effects are associated with the lipids of the membrane bulk, but in others, a direct interaction of the lipid with the protein is involved. This review gives an account of reports related to the action of the membrane lipids on the H(+)-ATPase activity.

  20. Solid municipal waste management in a mediterranean sea; La gestione dei rifiuti solidi urbani in un'area mediterranea

    Energy Technology Data Exchange (ETDEWEB)

    Falcetta, M. [Ministero degli Esteri, Direzione Generale per la Cooperazione e lo Sviluppo, Rome (Italy); Grauso, S. [ENEA, Divisione Caratterizzazione del Territorio, S. Maria di Galeria, Rome (Italy); Pietrelli, L.; Sgroi, S. [ENEA, Divisione Ingegneria Ambientale, S. Maria di Galeria, Rome (Italy)

    2001-02-01

    Development and results of a co-operative project on solid waste management in Palestine. The project was the first part of a broader programme of environmental co-operation between Italy and the Palestinian National Authority. [Italian] Lo sviluppo e i risultati raggiunti da un progetto di cooperazione italo-palestinese sulla gestione dei rifiuti solidi urbani in Palestina. Il progetto si presta ad essere replicato nei Paesi in via di sviluppo mediterranea.

  1. Effet sur la compétitivité des réglementations relatives à la gestion des effluents

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou

    2004-01-01

    ’OCDE et parce qu’ils aident les producteurs à des degrés variables (chapitre 5). Comparativement aux résultats d’une analyse similaire consacrée au secteur porcin, les coûts de gestion des effluents dans le secteur laitier sont en général inférieurs et les différences sont moindres entre les pays ; cela s...

  2. Feasibility study for the partial conversion of a hydropower plant into a pumped-storage power plant: a case study of hydroelectric power plant La Barca (Asturias, Spain

    Directory of Open Access Journals (Sweden)

    E. Antuña Yudego

    2017-01-01

    Full Text Available Renewable energy sources have reported an unprecedented increase of global installed renewable power capacity. Against the advantages provided by this renewable power generation technology it should be taken into account an important issue: these intermittent energy sources supply a fluctuating output which is difficult to manage. Pumped-storage hydro power plants reappear in these circumstances as an efficient form of energy storage which allows to use reserves when necessary, enabling power generation output to cover continuously this energy demand. The present paper shows a simplified feasibility study of the partial conversion of hydropower plant La Barca, in Asturias, into a reversible storage through the development of an algorithm to simulate its operation according to electricity market prices. For this purpose, the operation in the deviation management market is considered and the technical modifications required for the conversion are shown. The estimation of costs and incomes present a feasible scenario.

  3. Human Reliability Analysis for Digitized Nuclear Power Plants: Case Study on the LingAo II Nuclear Power Plant

    Directory of Open Access Journals (Sweden)

    Yanhua Zou

    2017-03-01

    Full Text Available The main control room (MCR in advanced nuclear power plants (NPPs has changed from analog to digital control system (DCS. Operation and control have become more automated, centralized, and accurate due to the digitalization of NPPs, which has improved the efficiency and security of the system. New issues associated with human reliability inevitably arise due to the adoption of new accident procedures and digitalization of main control rooms in NPPs. The LingAo II NPP is the first digital NPP in China to apply the state-oriented procedure. In order to address issues related to human reliability analysis for DCS and DCS + state-oriented procedure, the Hunan Institute of Technology conducted a research project based on a cooperative agreement with the LingDong Nuclear Power Co. Ltd. This paper is a brief introduction to the project.

  4. UN OUTIL D’AIDE Á LA GESTION DE L’ANGUILLE : LE TABLEAU DE BORD ANGUILLLE DU BASSIN LOIRE

    Directory of Open Access Journals (Sweden)

    BAISEZ A.

    2005-10-01

    Full Text Available L’anguille européenne (Anguilla anguilla, L. est longtemps apparue comme une espèce commune, représentant une composante majeure des milieux littoraux et des eaux continentales. La prise de conscience de la diminution de son abondance est réelle et engendre l’émergence de processus de gestion. Ce constat situe l’enjeu du Tableau de Bord Anguille du Bassin Loire mis en place en avril 2002 sous l’égide du COmité de GEstion des POissons MIgrateurs du Bassin de la Loire, des Côtiers Vendéens et de la Sèvre Niortaise. Son objectif in fine est de contribuer à une gestion et à un développement durable de l’espèce et de ses habitats. Il vise à surveiller les caractéristiques des stocks locaux présents et des habitats disponibles au moyen d’une collecte régulière et objective de données synthétisées sous forme d’indicateurs de population et de milieu. Le concept, le fonctionnement actuel et les applications de ce tableau de bord sont ici présentés.

  5. Knowledge-based control and case-based diagnosis based upon empirical knowledge and fuzzy logic for the SBR plant.

    Science.gov (United States)

    Bae, H; Seo, H Y; Kim, S; Kim, Y

    2006-01-01

    Because biological wastewater treatment plants (WWTPs) involve a long time-delay and various disturbances, in general, skilled operators manually control the plant based on empirical knowledge. And operators usually diagnose the plant using similar cases experienced in the past. For the effective management of the plant, system automation has to be accomplished based upon operating recipes. This paper introduces automatic control and diagnosis based upon the operator's knowledge. Fuzzy logic was employed to design this knowledge-based controller because fuzzy logic can convert the linguistic information to rules. The controller can manage the influent and external carbon in considering the loading rate. The input of the controller is not the loading rate but the dissolved oxygen (DO) lag-time, which has a strong relation to the loading rate. This approach can replace an expensive sensor, which measures the loading rate and ammonia concentration in the reactor, with a cheaper DO sensor. The proposed controller can assure optimal operation and prevent the over-feeding problem. Case-based diagnosis was achieved by the analysis of profile patterns collected from the past. A new test profile was diagnosed by comparing it with template patterns containing normal and abnormal cases. The proposed control and diagnostic system will guarantee the effective and stable operation of WWTPs.

  6. Abandoned seasonal livestock migration reflected by plant functional traits: A case study in Kyrgyz rangelands

    Science.gov (United States)

    Hoppe, Franziska; Zhusui Kyzy, Taalaigul; Usupbaev, Adilet; Schickoff, Udo

    2017-04-01

    At least 30% of Kyrgyz pasture areas are considered to be subject to vegetation and soil degradation. Since animal husbandry is the economic basis to sustain people's livelihoods, rangeland degradation presents a threat for the majority of the population. Recently, the usage of plant functional traits as a powerful tool for the characterization of vegetation dynamics in response to anthropogenic and natural disturbances has been put forward. Grazing is one of the most severe disturbances on vegetation, which concerns equally the loss of area and biomass. Because grazing is both depending on and affecting plant functional traits, important insights can be generated, based on this codependency. We hypothesized that the contrasting grazing intensity of summer and winter pastures is reflected by the chosen traits. We used traits such as plant height, flowering start, growth form as well as SLA (Specific Leaf Area) and LMA (Leaf Mass per Area). Based on former phytosociological classification of the main pasture types (summer and winter pastures), community structure and the traits of dominant plant species were analyzed. Our results showed that on winter pastures grazing decreased plant height and SLA and favored plants with an earlier flowering start as well as rosette plants and ascending plants. We conclude that the study of trait composition in relation to anthropogenic disturbances can provide important insights into the mechanism of plant response to grazing in high-altitude rangelands.

  7. The conservation significance of natural hybridisation in Mediterranean plants: from a case study on Cyclamen (Primulaceae) to a general perspective.

    Science.gov (United States)

    Thompson, John D; Gauthier, Perrine; Papuga, Guillaume; Pons, Virginie; Debussche, Max; Farris, Emmanuele

    2017-06-23

    Hybridisation plays a prominent role in plant evolution due to its influence on genetic diversity, fitness and adaptive potential We identify a case of on-going hybrid evolution of floral phenotypes in disjunct populations of Cyclamen balearicum and C. repandum subsp. repandum on Corsica and Sardinia. Hybrid populations on the two islands contain similar patterns of variation in flower colour and size but are probably at different stages in the evolutionary process of hybridisation and differences in the frequency of floral types and flower size suggest hybrid vigour that may contribute to the dynamics and maintenance of hybrid forms. In a review of cases of hybridisation in Mediterranean plants we found an equivalent number of cases for the contemporary occurrence of mixed hybrid populations, as there are cases of homoploid hybrid species differentiation. We argue for the development of a conservation strategy for Mediterranean plants that integrates the need to protect not just pure endemic species (some of hybrid origin) but also mixed populations where adaptive variation and new species are evolving due to contemporary hybridisation. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  8. Clay hydration and crystal growth in expansive anhydritic claystone. The Ascó Power Plant case

    Science.gov (United States)

    Alonso, Eduardo; Ramon, Anna

    2015-04-01

    A large power plant directly founded on a hard claystone experienced, soon after the construction of the foundation slabs, a continuous heave developing at decreasing rate, which has been active for the last 35 years. When undisturbed (i.e., at some depth, in the range of several meters) Ascó claystone exhibits high unconfined compressive strengths (30-40 MPa). In high quality cores the rock has a massive aspect and discontinuities are difficult to observe. The rock has a Tertiary origin and horizontal layers at spacing of 1-4 m could be identified. Whitish seams of gypsum, bassanite or anhydrite are also observed within the reddish rock matrix. Minerals identified in deep cores are quartz (10%), calcite and dolomite (50-70%), clay minerals (10-20%) and gypsum and anhydrite (2-20%). Among the clay minerals, illite dominates (10%). Smectite or smectite-interbedded minerals do not amount in general to more than 5%. The undisturbed rock has a low porosity (6-11%) and low water content (2-5%). Because of the presence of hydrated sulphates, water content and degree of saturation (Sr=0.8-0.9 was found) are somewhat uncertain. However, high suctions were found in recovered cores. This rock changes into a weathered material at shallow depths. Mineralogy is not much affected but porosity increases to 22-29% and water content increases to 10-19%. Strength drops to small values (soil like) and a lower "in situ" suction has been measured (0.4-7.1 MPa). The added pore volume of the weathered material, if compared with the deep rock, is filled with water. The heave of the station was attributed to the hydration of undisturbed rock under the building slabs of the power plant. In fact, large excavations preceded the layout of foundations. As a result, atmospheric water had an easy access to the intact rock. The installation of a compacted soil fill around the buildings allowed the presence of a permanent water table which could infiltrate into the rock. Piezometric data provided

  9. Scaling Environment Justice: The Case of the Waste Isolation Pilot Plant

    Energy Technology Data Exchange (ETDEWEB)

    Murphy, Brenda L. [Wilfrid Launer Univ., Brantford (Canada); Kuhn, Richard G. [Univ. of Guelph (Canada). Dept. of Geography

    2006-09-15

    The growing body of literature associated with environmental justice documents the extent to which poor, peripheral or minority regions are often burdened with contamination or the siting of new noxious, unwanted facilities. More recently. environmental justice studies have also begun to explore the processes and societal structures that contribute to (in)justice. The environmental justice perspective asserts that instances of local contamination or the siting of noxious facilities in disempowered neighbourhoods are not only problems for those most affected by the facility; such situations are also instances of broader concerns about fairness and equity. At the grass-roots level. in marginalised spaces, residents may adopt the environmental justice frame as a strategy to gain recognition of their 'local' problem by regional. national or global actors. In this paper we problemise this environmental justice perspective, particularly as it relates to the issue of spatial and temporal scale. We utilise the Waste Isolation Pilot Plant (WIPP). the military transuranic nuclear waste disposal facility located in Carlsbad, New Mexico as an example where the environmental justice perspective was not (for the most part) invoked by local residents. Since it was mostly members of civil society groups and state and federal elected officials, most living four hours away who questioned the safety and viability of the facility, while local leaders actively lobbied to bring the facility to Carlsbad, this raises questions regarding 1) what counts as marginalised space and who gets to speak for those spaces, 2) who decides what can be defined as an environmental justice issue, and 3) at what spatial and temporal scale should justice be defined. Following a further elaboration of the conceptual ideas that underpin this discussion, in the subsequent section we present the WlPP case study.

  10. Stratégies de gestion dans les centres d’appels brésiliens : omniprésence et visibilité Management Strategies in Brazilian Call Centres: Omnipresence and Visibility

    Directory of Open Access Journals (Sweden)

    Selma Venco

    2010-12-01

    Full Text Available La question de la rencontre entre dispositifs de gestion importés et configurations socio-historiques est ici examinée dans le cas des centres d’appels brésiliens. L’article rappelle, tout d’abord, que ces dispositifs, généralement importés des États-Unis, prétendent accroître la compétitivité des entreprises, en s’appuyant sur des critères réputés universels.Cependant, au Brésil, les modèles de gestion mondialisés sont mis en œuvre par les directions qui se saisissent de leurs potentialités pour intensifier le processus de domination dans les relations capital-travail. En effet, les formes de gestion sont renouvelées pour essayer d’obtenir des téléopérateurs l’intériorisation partielle des normes de travail, en rendant opérationnel le contrôle gestionnaire ancré dans la technologie. L’article suggère que le système de management « au corps à corps » s’appuye également sur la fragilité des salariées, prises dans les effets conjugués d’un fort taux de chômage et des rapports sociaux de genre.The question of the encounter between imported management arrangements and socio-historical configurations is examined in the case of Brazilian call centres. The article first of all recalls that these arrangements, generally imported from the United States, claim to increase the companies’ competitiveness, in basing themselves on criteria deemed universal.Yet, in Brazil, the globalized management models are put to work by directors wanting to grasp their potentials for intensifying their domination processes in capital-labour relationships. In effect, these management forms have been renewed to try and instill in tele-operators a partisan interiorization of work standards, by applying an adminstrative and management control anchored in technology. The article suggests that this “hand to hand” system of management also has an effect on the fragility level of salaried workers, caught up in the

  11. Pollinator networks, alien species and the conservation of rare plants: Trinia glauca as a case study

    NARCIS (Netherlands)

    Carvalheiro, L.G.; Barbosa, E.R.; Memmott, J.

    2008-01-01

    1. Despite the essential role of pollination in the maintenance of many rare plant species, conservation management plans rarely consider the service of pollination. 2. This study identifies the main pollinators of a rare English plant species, Trinia glauca (Apiaceae), and provides recommendations

  12. Pollinator networks, alien species and the conservation of rare plants: Trinia glauca as a case study

    NARCIS (Netherlands)

    Carvalheiro, L.G.; Barbosa, E.R.; Memmott, J.

    2008-01-01

    1. Despite the essential role of pollination in the maintenance of many rare plant species, conservation management plans rarely consider the service of pollination. 2. This study identifies the main pollinators of a rare English plant species, Trinia glauca (Apiaceae), and provides recommendations

  13. Economic analysis of anaerobic digestion - A case of Green power biogas plant in The Netherlands

    NARCIS (Netherlands)

    Gebrezgabher, S.A.; Meuwissen, M.P.M.; Prins, B.A.M.; Oude Lansink, A.G.J.M.

    2010-01-01

    One of the key concerns of biogas plants is the disposal of comparatively large amounts of digestates in an economically and environmentally sustainable manner. This paper analyses the economic performance of anaerobic digestion of a given biogas plant based on net present value (NPV) and internal r

  14. Rhizobacteria modify plant-aphid interactions: a case of induced systemic susceptibility.

    Science.gov (United States)

    Pineda, A; Zheng, S-J; van Loon, J J A; Dicke, M

    2012-03-01

    Beneficial microbes, such as plant growth-promoting rhizobacteria and mycorrhizal fungi, may have a plant-mediated effect on insects aboveground. The plant growth-promoting rhizobacterium Pseudomonas fluorescens can induce systemic resistance in Arabidopsis thaliana against several microbial pathogens and chewing insects. However, the plant-mediated effect of these beneficial microbes on phloem-feeding insects is not well understood. Using Arabidopsis as a model, we here report that P. fluorescens has a positive effect on the performance (weight gain and intrinsic rate of increase) of the generalist aphid Myzus persicae, while no effect was recorded on the crucifer specialist aphid Brevicoryne brassicae. Additionally, transcriptional analyses of selected marker genes revealed that in the plant-microbe interaction with M. persicae, rhizobacteria (i) prime the plant for enhanced expression of LOX2, a gene involved in the jasmonic acid (JA)-regulated defence pathway, and (ii) suppress the expression of ABA1, a gene involved in the abscisic acid (ABA) signalling pathway, at several time points. In contrast, almost no effect of the plant-microbe interaction with B. brassicae was found at the transcriptional level. This study presents the first data on rhizobacteria-induced systemic susceptibility to an herbivorous insect, supporting the pattern proposed for other belowground beneficial microbes and aboveground phloem feeders. Moreover, we provide further evidence that at the transcript level, soil-borne microbes modify plant-aphid interactions.

  15. Economic analysis of anaerobic digestion - A case of Green power biogas plant in The Netherlands

    NARCIS (Netherlands)

    Gebrezgabher, S.A.; Meuwissen, M.P.M.; Prins, B.A.M.; Oude Lansink, A.G.J.M.

    2010-01-01

    One of the key concerns of biogas plants is the disposal of comparatively large amounts of digestates in an economically and environmentally sustainable manner. This paper analyses the economic performance of anaerobic digestion of a given biogas plant based on net present value (NPV) and internal

  16. ÉVALUATION ÉCONOMIQUE DES PLANS DE GESTION PISCICOLE.

    Directory of Open Access Journals (Sweden)

    ARMAND C.

    2002-04-01

    Full Text Available En France, la gestion de la pêche en eau douce est généralement confiée aux associations de pêcheurs qui agissent sous le contrôle de l’Etat. Le Conseil Supérieur de la Pêche a développé une méthode synthétique d’élaboration de plans de gestion piscicole qui favorisent la reproduction naturelle et le maintien des populations sauvages. Ces plans s’appuient sur des opérations de protection des habitats et de restauration du milieu dont il convient d’évaluer la rentabilité sociale. Ce qui conduit à estimer la valeur du poisson sauvage (c’est à dire né dans le milieu naturel, de parents eux-mêmes sauvages. Cette valeur intègre deux composantes principales, une valeur d’usage qui dérive de la pratique de la pêche et une valeur de non-usage qui découle de son existence même et qui intéresse une population plus vaste que celle des seuls pêcheurs. Les bénéfices potentiels engendrés par la présence de poissons sauvages sont estimés par la méthode d’évaluation contingente. Les résultats empiriques sont basés sur un échantillon de 1 629 pêcheurs qui ont participé à une enquête postale. Le Consentement A Payer (CAP pour le poisson sauvage est une fonction croissante du revenu, de la valeur du matériel et de la distance parcourue pour pêcher. De plus on note que les amateurs de brochets et de truites (espèces repères de l’étude ainsi que ceux qui pêcheraient plus souvent s’il y avait du poisson sauvage ont, toutes choses égales, par ailleurs un CAP plus élevé. La valeur moyenne du CAP varie selon le modèle retenu de 50 F à 100 F par pêcheur et par an. Ce CAP correspond à un concept de valeur totale qui inclut une composante de valeur d’usage et de valeur de non-usage. Certains pêcheurs sont prêts à payer sans pour autant marquer une préférence pour la pêche au poisson sauvage. Leur CAP est associé à une valeur de non-usage et correspond à la valeur d’existence du poisson

  17. A case study in risk management : remediation of residual salt impacts at a closed sour gas processing plant

    Energy Technology Data Exchange (ETDEWEB)

    Brewster, M.L.; Penny, S.; MacDonald, J.; Hamilton, A.; Oness, M. [WorleyParsons Canada Ltd., Calgary, AB (Canada)

    2010-07-01

    This presentation described the post remediation management of residual salt impacts at a closed former sour gas processing plant. Generic guidelines were discussed along with guideline recalculation and ongoing risk management. Green remediation objectives that incorporate sustainable environmental practices into remediation of contaminated sites were also presented. A case study of the Okotoks Gas Plant was also provided. The case study discussed post shutdown activities; land blocks; escarpment feature; simplified hydrogeologic cross-section; the upper terrace remediation program; remedial excavations; groundwater remediation; risk management plan; vegetation surveys; soil stratification scheme; groundwater risk management; and geophysical monitoring. It was concluded that Alberta needs a risk management framework in order to promote site re-development, reduce contamination and control exposure and adopt principles of green and sustainable remediation.

  18. To Stretch the Boundary of Secondary Metabolite Production in Plant Cell-Based Bioprocessing: Anthocyanin as a Case Study

    Directory of Open Access Journals (Sweden)

    Wei Zhang

    2004-01-01

    Full Text Available Plant cells and tissue cultures hold great promise for controlled production of a myriad of useful secondary metabolites on demand. The current yield and productivity cannot fulfill the commercial goal of a plant cell-based bioprocess for the production of most secondary metabolites. In order to stretch the boundary, recent advances, new directions and opportunities in plant cell-based bioprocessing, have been critically examined for the 10 years from 1992 to 2002. A review of the literature indicated that most of the R&D work was devoted predominantly to studies at an empirical level. A rational approach to molecular plant cell bioprocessing based on the fundamental understanding of metabolic pathways and their regulations is urgently required to stimulate further advances; however, the strategies and technical framework are still being developed. It is the aim of this review to take a step forward in framing workable strategies and technologies for molecular plant cell-based bioprocessing. Using anthocyanin biosynthesis as a case study, an integrated postgenomic approach has been proposed. This combines the functional analysis of metabolic pathways for biosynthesis of a particular metabolite from profiling of gene expression and protein expression to metabolic profiling. A global correlation not only can thus be established at the three molecular levels, but also places emphasis on the interactions between primary metabolism and secondary metabolism; between competing and/or complimentary pathways; and between biosynthetic and post-biosynthetic events.

  19. To Stretch the Boundary of Secondary Metabolite Production in Plant Cell-Based Bioprocessing: Anthocyanin as a Case Study.

    Science.gov (United States)

    Zhang, Wei; Franco, Chris; Curtin, Chris; Conn, Simon

    2004-01-01

    Plant cells and tissue cultures hold great promise for controlled production of a myriad of useful secondary metabolites on demand. The current yield and productivity cannot fulfill the commercial goal of a plant cell-based bioprocess for the production of most secondary metabolites. In order to stretch the boundary, recent advances, new directions and opportunities in plant cell-based bioprocessing, have been critically examined for the 10 years from 1992 to 2002. A review of the literature indicated that most of the R&D work was devoted predominantly to studies at an empirical level. A rational approach to molecular plant cell bioprocessing based on the fundamental understanding of metabolic pathways and their regulations is urgently required to stimulate further advances; however, the strategies and technical framework are still being developed. It is the aim of this review to take a step forward in framing workable strategies and technologies for molecular plant cell-based bioprocessing. Using anthocyanin biosynthesis as a case study, an integrated postgenomic approach has been proposed. This combines the functional analysis of metabolic pathways for biosynthesis of a particular metabolite from profiling of gene expression and protein expression to metabolic profiling. A global correlation not only can thus be established at the three molecular levels, but also places emphasis on the interactions between primary metabolism and secondary metabolism; between competing and/or complimentary pathways; and between biosynthetic and post-biosynthetic events.

  20. Optimization of a biotechnological multiproduct batch plant design for the manufacture of four different products: A real case scenario.

    Science.gov (United States)

    Sandoval, Gabriela; Espinoza, Daniel; Figueroa, Nicolas; Asenjo, Juan A

    2017-06-01

    In this work a biotechnological multiproduct batch plant that manufactures four different recombinant proteins for human application is described in some detail. This batch plant design is then optimized with regards to the size of equipment using a mixed-integer linear programming (MILP) formulation recently developed by us in order to find a hypothetical new biotechnological batch plant based on the information of real known processes for the production of the four recombinant protein products. The real plant was divided for practical purposes into two sub-processes or facilities: a fermentation facility and a purification facility. Knowing the specific steps conforming the downstream processing of each product, size, and time factors were computed and used as parameters to solve the aforementioned MILP reformulation. New constraints were included to permit the selection of some equipment-such as centrifuges and membrane filters-in a discrete set of sizes. For equipment that can be built according to customer needs-such as reactors-the original formulation was retained. Computational results show the ability of this optimization methodology to deal with real data giving reliable solutions for a multi-product batch plant composed of 44 unit operations in a relatively small amount of time showing that in the case studied it is possible to save up to a 66% of the capital investment in equipment given the cost data used. Biotechnol. Bioeng. 2017;114: 1252-1263. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  1. On the use of wind energy to power reverse osmosis desalination plant: A case study from Tenes (Algeria)

    Energy Technology Data Exchange (ETDEWEB)

    Dehmas, Djamila Abdeslame; Merzouk, Nachida Kasbadji [Wind Energy Division, Renewable Energy Development Center, BP. 62, Bouzareah, Algiers (Algeria); Kherba, Nabila; Hacene, Fouad Boukli [University Hassiba Ben Bouali of Chlef (Algeria); Merzouk, Mustapha [Mechanical Department, University Saad Dahlab of Blida (Algeria); Mahmoudi, Hacene [Wind Energy Division, Renewable Energy Development Center, BP. 62, Bouzareah, Algiers (Algeria); University Hassiba Ben Bouali of Chlef (Algeria); Goosen, Mattheus F.A. (Alfaisal University, P.O. Box 50927, Riyadh 11533, Saudi Arabia)

    2011-02-15

    The aim of this study was to provide a detailed analysis of wind energy resources for seawater reverse osmosis desalination (SWRO), in a case study region of Tenes Algeria, by using commercial Wasp software. An economic analysis of the environmental benefits was also done using RETScreen software to give details about financial investment hazards and CO{sub 2} emissions reduction. An energy yield and economical analysis was performed of a hypothetical wind farm consisting of 5 wind turbines of type Bonus 2 MW. It was found that wind energy can successfully power a SWRO desalination plant in the case study region. (author)

  2. Optimizing learning of scientific category knowledge in the classroom: the case of plant identification.

    Science.gov (United States)

    Kirchoff, Bruce K; Delaney, Peter F; Horton, Meg; Dellinger-Johnston, Rebecca

    2014-01-01

    Learning to identify organisms is extraordinarily difficult, yet trained field biologists can quickly and easily identify organisms at a glance. They do this without recourse to the use of traditional characters or identification devices. Achieving this type of recognition accuracy is a goal of many courses in plant systematics. Teaching plant identification is difficult because of variability in the plants' appearance, the difficulty of bringing them into the classroom, and the difficulty of taking students into the field. To solve these problems, we developed and tested a cognitive psychology-based computer program to teach plant identification. The program incorporates presentation of plant images in a homework-based, active-learning format that was developed to stimulate expert-level visual recognition. A controlled experimental test using a within-subject design was performed against traditional study methods in the context of a college course in plant systematics. Use of the program resulted in an 8-25% statistically significant improvement in final exam scores, depending on the type of identification question used (living plants, photographs, written descriptions). The software demonstrates how the use of routines to train perceptual expertise, interleaved examples, spaced repetition, and retrieval practice can be used to train identification of complex and highly variable objects.

  3. Participation et gestion dans les parcs nationaux de montagne : approches anglo-saxonnes

    Directory of Open Access Journals (Sweden)

    Stéphane Héritier

    2010-04-01

    Full Text Available L’implication du public est devenue l’un des éléments clé des politiques de conservation dans le monde. Cet article a pour objectif de proposer une analyse générale dans quatre pays ayant établi des parcs nationaux de manière très précoce, souvent en opposition avec les populations locales ou autochtones. Depuis les années 1970, la participation publique est devenue une pratique commune dans la gestion des parcs nationaux, même si elle revêt des réalités très variables. Cet article analyse les tendances générales de la participation (notamment au niveau des dispositifs dans les pratiques de gestion des parcs nationaux, qui sont généralement considérées comme des réussites en termes de pratiques politiques ou de gouvernance et qui sont souvent présentées comme des modes d’élaboration de démocratie délibérative. L’analyse utilisant les différents niveaux scalaires tend à montrer au contraire que les dispositifs de participation publique peuvent aussi fragmenter les parties prenantes et rendre plus difficile la constitution efficace d’une coalition d’acteurs.Public involvement has become a key concept in conservation management worldwide. This paper intends to give an overview on four countries known to have established national parks for over a century, and often in clearing the land from previous ‘indigenous’ or local occupation. Since the seventies, public participation has become a common practice in parks’ management, even if reality does not fit always perfectly with theory. The paper analyses general trends of public participation in parks management practices, which are most often considered as a successful governance policies by most authors, and is also considered as a way to build participative democracy. The analysis using the level of scale intends to show that public participation can also fragment the stakeholders, making really difficult the emergence of any efficient coalition of

  4. A case study of printing industry plant layout for effective production

    Science.gov (United States)

    Viswajit, T.; Teja, T. Ravi; Deepthi, Y. P.

    2017-07-01

    This paper presents the overall picture of the processes happening in printing industry. This research is aimed to improve the plant layout of existing plant. The travel time was reduced by relocating machinery. Relocation is based on systematic layout planning (SLP). The complete process of raw material entering the industry to dispatching of finished product is shown in 3-D Flow diagram. The process happening in each floor explained in detail using Flow Process chart. Travel time is reduced by 25% after modifying existing plant layout.

  5. Les déchets post-catastrophe à Haïti : les jeux d'acteurs d'une gestion informelle

    OpenAIRE

    Durand, M.; Popescu, R.; D'Ercole, Robert

    2015-01-01

    L’étude de la gestion des déchets post-catastrophe est récente dans la littérature scientifique comme chez les acteurs opérationnels de la gestion de crise. Cette activité semble pourtant essentielle pour la réponse immédiate à la crise (déblaiement des voies, des canalisations, etc.) comme pour les phases de récupération et de reconstruction. La gestion des déchets post-catastrophe permet en effet de stimuler une économie locale et d’engager un redémarrage économique, tout en offrant des mat...

  6. Description d'un processus de debureaucratisation de l'appareil administratif etatique au moyen de differentes techniques de gestion des ressources humaines

    Directory of Open Access Journals (Sweden)

    Thibault DUVILLIER

    2000-06-01

    Full Text Available Le but de cet exposé1 consiste à expliquer un processus de débureaucratisation de l'appareil administratif étatique au moyen de techniques de gestion des Ressources humaines. Pour ce faire, il convient de s'entendre sur le concept de bureaucratie autant que sur celui de gestion des Ressources humaines. En disséquant une organisation définie comme bureaucratique en ses diverses composantes, nous pourrons ainsi mieux émettre des pistes de débureaucratisation. Précisément, les différentes techniques de gestion des Ressources humaines dont je ferai état ici permettront de faciliter le changement organisationnel souhaité.

  7. Electrical efficiency in waste incineration plants - Turgi case study; Elektrizitaetseffizienz in Kehrichtverwertungsanlagen - Fallbeispiel KVA Turgi

    Energy Technology Data Exchange (ETDEWEB)

    Haenny, D.; Schnyder, G.

    2004-07-01

    This final report for the Swiss Federal Office of Energy (SFOE) presents the results of a study made on the more efficient use of electricity in the waste incineration plant in Turgi, Switzerland. Using this plant as a model, an evaluation of the potential for increasing efficiencies in the area of electricity consumption was carried out. All energy-relevant processes and technologies were analysed on site in order to draw up a catalogue of optimisation measures. The measures described were evaluated and classified, whereby their feasibility and economic viability were taken into account. The electricity savings potential for the Turgi plant was extrapolated: the potential increase in efficiency in all thermal waste treatment plants in Switzerland indicates annual savings of around 38 GWh, which is equivalent to the electricity consumption of around 10,000 private households.

  8. Efficiency analysis of hydroelectric generating plants: A case study for Portugal

    Energy Technology Data Exchange (ETDEWEB)

    Barros, Carlos Pestana [Instituto Superior de Economia e Gestao, Technical University of Lisbon, Rua Miguel Lupi, 20, 1249-078 Lisbon (Portugal)

    2008-01-15

    This paper estimates changes in total productivity, breaking this down into technically efficient change and technological change, by means of data envelopment analysis (DEA) applied to the hydroelectric energy generating plants of EDP - the Portugal Electricity Company. The aim of this procedure is to seek out those best practices that will lead to improved performance in the energy market. We rank the plants according to their change in total productivity for the period 2001-2004, concluding that some plants experienced productivity growth while others experienced a decrease in productivity. The implications arising from the study are that EDP should adopt an internal benchmark management procedure in order to evaluate the relative position of each hydroelectric generating plant and to adopt managerial strategies designed to catch up with the frontier of 'best practices'. As the frontier is shifting along the time, constant efforts are needed in this respect along the time. (author)

  9. Efficiency analysis of hydroelectric generating plants: a case study for Portugal

    Energy Technology Data Exchange (ETDEWEB)

    Pestana Barros, C. [Technical University of Lisbon (Portugal). Instituto Superior de Economia e Gestao

    2008-01-15

    This paper estimates changes in total productivity, breaking this down into technically efficient change and technological change, by means of data envelopment analysis (DEA) applied to the hydroelectric energy generating plants of EDP - the Portugal Electricity Company. The aim of this procedure is to seek out those best practices that will lead to improved performance in the energy market. We rank the plants according to their change in total productivity for the period 2001-2004, concluding that some plants experienced productivity growth while others experienced a decrease in productivity. The implications arising from the study are that EDP should adopt an internal benchmark management procedure in order to evaluate the relative position of each hydroelectric generating plant and to adopt managerial strategies designed to catch up with the frontier of ''best practices''. As the frontier is shifting along the time, constant efforts are needed in this respect along the time. (author)

  10. Bias and conflict in phylogenetic inference of myco-heterotrophic plants: a case study in Thismiaceae

    NARCIS (Netherlands)

    Merckx, V.; Bakker, F.T.; Huysmans, K.; Smets, B.F.

    2009-01-01

    Due to morphological reduction and absence of amplifiable plastid genes, the identification of photosynthetic relatives of heterotrophic plants is problematic. Although nuclear and mitochondrial gene sequences may offer a welcome alternative source of phylogenetic markers, the presence of rate heter

  11. A case study evaluation of edible plants curriculum implemented in an elementary school

    Science.gov (United States)

    Graves, Leila

    The main purpose of this study was to describe elementary teachers' attitudes and perceptions toward plant science. The secondary purpose was to create an edible plant curriculum as a vehicle for integrating STEM and 21st Century skills into Common Core Content. Results indicate that teachers and STEM coordinators did find the curriculum to be effective in teaching the interdisciplinary standard-based and inquiry based content and skills targeted. Additionally, the curriculum development process produced a hybrid design framework that facilitated the creation of life science content as a vehicle for integrating STEM into common core content. However, several significant barriers will need to be overcome with regard to the teachers', STEM coordinators' and administrators' perception that plant science and nutrition literacy are "special" content activities versus important STEM content. Keywords; STEM, Curriculum development, 21st Century skills, Common Core Content, Plant Science and Nutrition Literacy, Interdisciplinary Standard-based and inquiry based.

  12. Improving Energy Efficiency at U.S. Plastics Manufacturing Plants Summary Report and Case Studies

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2010-06-25

    Industrial Technologies Program’s BestPractices report based on a comprehensive plant assessment project with ITP’s Industrial Assessment Center, The Society of the Plastics Industry, Inc., and several of its member companies.

  13. Improving Energy Efficiency at U.S. Plastics Manufacturing Plants: Summary Report and Case Studies

    Energy Technology Data Exchange (ETDEWEB)

    2005-09-01

    Industrial Technologies Programs BestPractices report based on a comprehensive plant assessment project with ITP's Industrial Assessment Center, The Society of the Plastics Industry, Inc., and several of its member companies.

  14. Class Attendance, Course Performance, and Course Evaluation: A Case Study of an Introducctory Plant Science Course

    National Research Council Canada - National Science Library

    Michael A. Fidanza

    2006-01-01

    Class lecture attendance by students in an introductory undergraduate plant science course had not been consistent, and the impact of attendance on student grades and their perception of the course...

  15. Valuing flexibility: The case of an Integrated Gasification Combined Cycle power plant

    Energy Technology Data Exchange (ETDEWEB)

    Abadie, L.M.; Chamorro, J.M. [University of the Basque Country, Bilbao (Spain)

    2008-07-15

    In this paper we analyze the choice between two technologies for producing electricity. In particular, the firm has to decide whether and when to invest either in a Natural Gas Combined Cycle (NGCC) power plant or in an Integrated Gasification Combined Cycle (IGCC) power plant, which may burn either coal or natural gas. Instead of assuming that fuel prices follow standard geometric Brownian motions' here they are assumed to show mean reversion, specifically to follow an inhomogeneous geometric Brownian motion. First we consider the opportunity to invest in a NGCC power plant. We derive the optimal investment rule as a function of natural gas price and the remaining life of the right to invest. In addition, the analytical solution for a perpetual option to invest is obtained. Then we turn to the IGCC power plant. We analyse the valuation of an operating plant when there are switching costs between modes of operation, and the choice of the best operation mode. This serves as an input to evaluate the option to invest in this plant. Finally we derive the value of an opportunity to invest either in a NGCC or IGCC power plant, i.e. to choose between an inflexible and a flexible technology, respectively. Depending on the opportunity's time to maturity, we derive the pairs of coal and gas prices for which it is optimal to invest in NGCC, in IGCC, or simply not to invest. Numerical computations involve the use of one- and two-dimensional binomial lattices that support a mean-reverting process for coal and gas prices. Basic parameter values are taken from an actual IGCC power plant currently in operation. sensitivity of some results with respect to the underlying stochastic process for fuel price is also checked.

  16. LEGO® bricks as building blocks for centimeter-scale biological environments: the case of plants.

    Directory of Open Access Journals (Sweden)

    Kara R Lind

    Full Text Available LEGO bricks are commercially available interlocking pieces of plastic that are conventionally used as toys. We describe their use to build engineered environments for cm-scale biological systems, in particular plant roots. Specifically, we take advantage of the unique modularity of these building blocks to create inexpensive, transparent, reconfigurable, and highly scalable environments for plant growth in which structural obstacles and chemical gradients can be precisely engineered to mimic soil.

  17. LEGO® bricks as building blocks for centimeter-scale biological environments: the case of plants.

    Science.gov (United States)

    Lind, Kara R; Sizmur, Tom; Benomar, Saida; Miller, Anthony; Cademartiri, Ludovico

    2014-01-01

    LEGO bricks are commercially available interlocking pieces of plastic that are conventionally used as toys. We describe their use to build engineered environments for cm-scale biological systems, in particular plant roots. Specifically, we take advantage of the unique modularity of these building blocks to create inexpensive, transparent, reconfigurable, and highly scalable environments for plant growth in which structural obstacles and chemical gradients can be precisely engineered to mimic soil.

  18. Bioindicator plants as monitoring tools for urban and industrial pollutant sources - case studies from Austria

    Energy Technology Data Exchange (ETDEWEB)

    Soja, G.; Schafler, P.; Gerzabek, M. [Austrian Research Center Seibersdorf (Austria). Dept. of Environmental Research

    2002-07-01

    This paper presents two examples for the application of bioindicator techniques in environmental monitoring projects. The results presented here refer to the quantitation of the effects of environmental parameters on the behaviour of bioindicator plants. a.) Environmental monitoring of an industrial pollutant emitter in a rural environment. For monitoring the environmental impact of a coal-fired power plant, an extensive multi-annual monitoring programme had been established four years prior to the start of operation of the power plant. The programme included analyses of soils and field crops and the physiological responses of crop plants in non-filtered and carbon-filtered open-top chambers (OTC). b.) Monitoring of ozone effects on bioindicator plants in a large city and its rural environs. In a two-year multi-location study, the region of Vienna was analysed along a profile from the west to the southeast of the city for visual ozone injury of bioindicator plants. Meteorological conditions and air pollutant concentrations were recorded in detail at 9 out of 25 indicator stations. The resulting dataset was processed with multivariate techniques. (orig.)

  19. Staffing decision processes and issues: Case studies of seven US Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Melber, B.; Roussel, A.; Baker, K.; Durbin, N.; Hunt, P.; Hauth, J.; Forslund, C.; Terrill, E. [Battelle Human Affairs Research Centers, Seattle, WA (United States); Gore, B. [Pacific Northwest Lab., Richland, WA (United States)

    1994-03-01

    The objective of this report is to identify how decisions are made regarding staffing levels and positions for a sample of U.S. nuclear power plants. In this report, a framework is provided for understanding the major forces driving staffing and the implications of staffing decisions for plant safety. The focus of this report is on driving forces that have led to changes in staffing levels and to the establishment of new positions between the mid-1980s and the early 1990s. Processes used at utilities and nuclear power plants to make and implement these staffing decisions are also discussed in the report. While general trends affecting the plant as a whole are presented, the major emphasis of this report is on staffing changes and practices in the operations department, including the operations shift crew. The findings in this report are based on interviews conducted at seven nuclear power plants and their parent utilities. A discussion of the key findings is followed by a summary of the implications of staffing issues for plant safety.

  20. Sweet scents from good bacteria: Case studies on bacterial volatile compounds for plant growth and immunity.

    Science.gov (United States)

    Chung, Joon-hui; Song, Geun Cheol; Ryu, Choong-Min

    2016-04-01

    Beneficial bacteria produce diverse chemical compounds that affect the behavior of other organisms including plants. Bacterial volatile compounds (BVCs) contribute to triggering plant immunity and promoting plant growth. Previous studies investigated changes in plant physiology caused by in vitro application of the identified volatile compounds or the BVC-emitting bacteria. This review collates new information on BVC-mediated plant-bacteria airborne interactions, addresses unresolved questions about the biological relevance of BVCs, and summarizes data on recently identified BVCs that improve plant growth or protection. Recent explorations of bacterial metabolic engineering to alter BVC production using heterologous or endogenous genes are introduced. Molecular genetic approaches can expand the BVC repertoire of beneficial bacteria to target additional beneficial effects, or simply boost the production level of naturally occurring BVCs. The effects of direct BVC application in soil are reviewed and evaluated for potential large-scale field and agricultural applications. Our review of recent BVC data indicates that BVCs have great potential to serve as effective biostimulants and bioprotectants even under open-field conditions.

  1. Water uptake efficiency of a maize plant - A simulation case study

    Science.gov (United States)

    Meunier, Félicien; Leitner, Daniel; Bodner, Gernot; Javaux, Mathieu; Schnepf, Andrea

    2014-05-01

    Water uptake by plant roots is a complex mechanism controlled by biological and physical properties of the soil-plant-atmosphere system and affects a major component of the water cycle, transpiration. This uptake of water by plants is one of the major factors of plant development. Since water uptake occurs at the roots, root architecture and hydraulic properties both play a crucial role in plant productivity. A fundamental understanding of the main processes of water uptake will enable better breeding of drought resistant plants and the improvement of irrigation strategies. In this work we analyzed the differences of root water uptake between idealized genotypes of a plant using mathematical modelling The numerical simulations were performed by the R-SWMS software (Javaux et al., 2008). The model describes 3-D water movement in soil by solving Richard's equation with a sink term representing root uptake. Water flow within the root xylem network and between soil and root is modelled based on water pressure gradients and calculated according to Doussan's model. The sink term is calculated by integration of local uptakes within rooted representative elementary volumes of soil. The plant water demand is described by a boundary condition at the base of the shoot. We compare the water uptake efficiency of three types of root system architectures of a maize plant. Two are actual architectures from genotypes showing significant differences regarding the internodal distance, the root growth rate and the insertion angle of their primary roots. The third one is an ideotype according to Lynch of the maize plant designed to perform better in one dry environment. We generated with RootBox five repetitions of these three root systems with the same total root volume and simulated two drought scenarios at the flowering stage (lack of water at the top or at the bottom of the soil domain). We did these simulations for two distinct distributions of local conductivities of root

  2. Gestion Technique Centralisée en Génie Climatique

    CERN Document Server

    Pepinster, P

    1999-01-01

    Il y a une quinzaine d'années, la Division ST a introduit sur les équipements de chauffage et de climatisation du CERN, des systèmes de contrôle locaux à microprocesseur en lieu et place des chaînes de régulation devenues obsolètes. Adoptée dans une volonté d'évolution technologique et dans une démarche de rationalisation des dépenses d'énergie, cette technique s'est répandue sur les différents sites du Laboratoire au fil des années. Depuis les applications de confort climatique dans les bâtiments tertiaires, jusqu'au conditionnement d'air des accélérateurs et des expériences, en passant par l'autocontrôle des chaufferies centrales, ces 'Unités de Traitement Locales' (UTL) sont aujourd'hui interconnectées en un système de Gestion Technique Centralisée d'environ 140 sous-stations. L'objet du document est de présenter la structure actuelle de ce système GTC, d'en montrer les possibilités et l'intérêt dans son exploitation quotidienne au CERN, et d'aborder ses évolutions futures.

  3. Pantoea agglomerans as an indicator of a foreign body of plant origin in cases of wound infection.

    Science.gov (United States)

    Vaiman, M; Lazarovich, T; Lotan, G

    2013-04-01

    To investigate the role of Pantoea agglomerans as an infectious agent that causes infection in a wound even after the wound was managed at the emergency department. A retrospective cohort study, reviewing the medical records of patients with traumatic wounds that were admitted to the emergency department from 2007-20 12 and had signs of wound infection for more than I 0 days after the wound was managed. Bacteriological results, clinical picture,and treatment results were obtained. Nine cases were identified. Pantoea agglomerans was detected in all cases. After 1-2 months of ineffective treatment, patients were hospitalised and surgical revisions of the wounds were performed.In all cases, small foreign bodies of plant origin were detected. After surgical revision, wounds were healed in 2-3 days. In cases of prolonged healing of post-traumatic wounds, the presence of foreign bodies of plant origin infected with Pantoea agglomerans should be taken into account. Removal of such foreign bodies leads to rapid healing of the wounds.

  4. Quels conflits d'intérêts sont-ils constitutifs de gestion déloyale (art. 158 CP) ?

    OpenAIRE

    Deuel, Michael

    2013-01-01

    Ce travail examine quels types de conflits d'intérêts ont une pertinence pénale au regard de l’art. 158 CP relatif à la gestion déloyale. Les deux infractions décrites à l'art. 158 CP sont présentées et quatre types de conflits d'intérêts, pertinents dans le cas de conseils d'administration, sont décrits. Enfin, des situations dans lesquels ils peuvent constituer une infraction de gestion déloyale sont analysées.

  5. Exploitation et maintenance des infrastructures urbaines: Système intégré de gestion des ressources en eau et en énergie

    OpenAIRE

    Storelli, Stéphane

    2007-01-01

    Cet article met en évidence l’importance des réseaux techniques pour une gestion et une exploitation optimale des municipalités. Cependant, il existe également des risques d’exploitation, qu’il s’agit de considérer et de rectifier. Dans cette optique, l’approche urbistique, développée à Martigny par le Centre de Recherches Energétiques et Municipales (CREM) depuis 1986, promeut l’utilisation et l’intégration des nouvelles technologies, afin de faciliter une gestion et une exploitation systémi...

  6. L’influence des Capital Investisseurs sur la gestion des ressources humaines des entreprises financées:dimensions, enjeux et limites

    OpenAIRE

    Anne Stévenot-Guéry; Loris Guéry

    2006-01-01

    (VF)Dans la mesure où elle peut avoir une incidence sur la création de valeur, les capital investisseurs (CI) sont susceptibles d’intervenir dans la gestion des ressources humaines (GRH) des entreprises qu’ils financent. La littérature montre une implication des CI au niveau de la stratégie et de la gestion financière, mais peu d’études se sont intéressées spécifiquement à leur influence sur la GRH. Cette recherche vise par conséquent à mieux comprendre quelles sont les dimensions de la GRH i...

  7. Life Cycle Assessment of Producing Electricity in Thailand: A Case Study of Natural Gas Power Plant

    Directory of Open Access Journals (Sweden)

    Usapein Parnuwat

    2017-01-01

    Full Text Available Environmental impacts from natural gas power plant in Thailand was investigated in this study. The objective was to identify the hotspot of environmental impact from electricity production and the allocation of emissions from power plant was studied. All stressors to environment were collected for annual natural gas power plant operation. The allocation of environmental load between electricity and steam was done by WRI/WBCSD method. Based on the annual power plant operation, the highest of environmental impact was fuel combustion, followed by natural gas extraction, and chemical reagent. After allocation, the result found that 1 kWh of electricity generated 0.425 kgCO2eq and 1 ton of steam generated 225 kgCO2eq. When compared based on 1GJ of energy product, the result showed that the environmental impact of electricity is higher than steam product. To improve the environmental performance, it should be focused on the fuel combustion, for example, increasing the efficiency of gas turbine, and using low sulphur content of natural gas. This result can be used as guideline for stakeholder who engage with the environmental impact from power plant; furthermore, it can be useful for policy maker to understand the allocation method between electricity and steam products.

  8. Exergy analysis of boiler of the steam power plant : case study in Iran

    Energy Technology Data Exchange (ETDEWEB)

    Gorji, M.; Ebrahimian, V. [Mazandaran Univ., Babol (Iran, Islamic Republic of). Dept. of Mechanical Engineering

    2006-07-01

    An exergy analysis was conducted to investigate the efficiency of a power plant in Iran. The plant consisted of 4 steam cycle units and 3 turbines of varying pressures using both natural gas and diesel fuel scenarios. The boiler had natural circulation with a 3-staged superheater and 2-stage reheaters and economizers. Energy and exergy balance equations were used to calculate efficiencies. The analysis showed that the total exergy efficiency of the plant was 36.1 per cent for the natural gas scenario and 35.5 per cent for the diesel fuel scenario. Among the main elements of the plant cycle, the highest exergy losses occurred with the boiler. Internal losses of the boiler included heat transfer, combustion, and friction losses, which were estimated at 362899 kW for the natural gas scenario and 411127 MW for the diesel fuel scenario. Exergy losses were primarily due to the exiting of hot gases from the chimney. Exergy losses caused by heat transfer were greater than the exergy losses of the combustion process. The exergy analysis of the boiler elements showed that the reheater had the lowest exergy efficiency and that the evaporator had the highest exergy losses. Results suggested that natural gas was more efficient than diesel fuel for producing superheater vapor in the boiler. It was concluded that the simulation can be used for steam power plants using both natural gas and diesel fuel. 13 refs., 5 tabs., 12 figs.

  9. A proposal of an efficiency indicator for the integrated management of waste; Una proposta per un indicatore di efficienza della gestione integrata dei rifiuti

    Energy Technology Data Exchange (ETDEWEB)

    Apostol, T.; Panaitescu, V. [Politecnico Univ., Bucarest (Romania). Facolta' di Energetica; Cemin, A.; Ragazzi, M. [Trento Univ., Trento (Italy). Dipartimento di Ingegneria Civile e Ambientale; Rada, E.C. [Politecnico Univ., Bucarest (Romania). Facolta' di Energetica; Trento Univ., Trento (Italy). Dipartimento di Ingegneria Civile e Ambientale

    2005-08-01

    In the present paper an efficiency indicator for the integrated management of waste is proposed. The aim is the assessment of the goodness of the solution either adopted or to be adopted in a region. This indicator takes into account not only the technical solutions but also the role of the waste production. This indicator has been used referring to two realities: the one is for a typical EU country where the European Union regulations are under implementation. The other is for a typical country which is going to enter in EU. In the present paper the role of the waste production, selective collection, conventional and innovative solutions for Waste to Energy plants, pre-treatment of waste and landfill is analysed. [Italian] Nel presente lavoro viene proposto un indicatore di efficienza della gestione integrata dei rifiuti utilizzabile per verificare la bonta' delle soluzioni adottate o da adottare con riferimento ad un determinato bacino di utenza. Tale indicatore tiene conto non solo delle soluzioni impiantistiche realizzate o programmate, ma anche del ruolo che ha la produzione dei rifiuti. L'indicatore e' stato utilizzato con riferimento a due realta': una e' quella tipica di un paese dell'Unione Europea dove sono in fase di implementazionele indicazioni delle direttive in materia di rifiuti; l'altra e' quella tipica di un paese che si appresta ad entrare nell'Unione Europea. Nel lavoro e' analizzato il ruolo della produzione di rifiuti, della raccolta differenziata, delle soluzioni convenzionali e innovative di termovalorizzazione, dei pretrattamenti dei rifiuti e della discarica.

  10. L'EVOLUTION DES SYSTEMES D'INFORMATION DE GESTION FACE AUX ENJEUX DE LA RESPONSABILITE SOCIALE : LE CAS DE LA COMPTABILITE ET DU CONTRÔLE DE GESTION

    OpenAIRE

    Bollecker, Marc; Mathieu, Pierre; Clementz, Claude

    2008-01-01

    De nombreux écrits sont consacrés actuellement à la responsabilité sociale des entreprises. En revanche, les travaux qui analysent la manière dont évoluent les systèmes d'information comptable et de contrôle de gestion face à ce phénomène sont plus rares. Cette contribution cherche alors à étudier les différentes attitudes que les organisations peuvent adopter ainsi que les déterminants de telles attitudes. Une grille de lecture néo-institutionnaliste d'inspiration sociologique est mobilisée ...

  11. Exploring the nature of science through courage and purpose: a case study of Nikolai Vavilov and plant biodiversity.

    Science.gov (United States)

    Cohen, Joel I; Loskutov, Igor G

    2016-01-01

    Historical biographies facilitate teaching the 'nature of science'. This case study focuses on how Nikolai Vavilov's unrelenting sense of purpose, courage, and charismatic personality was maintained during violent revolutionary change in Russia. The rediscovery of Gregor Mendel's laws of inheritance provided Vavilov with a scientific foundation for crop improvement, this foundation was later bolstered by Vavilov's personal drive to conserve plant biodiversity. As he advanced theories and pragmatic approaches for genetic improvement and conservation of plants, political leaders in Russian came to reject Mendel's principles and eventually Vavilov's work. This rejection occurred because Joseph Stalin was desperate for a quick remedy to the famine and suffering from forced collective agriculture. Vavilov's work continued, modernizing Russian crop research while inspiring other scientists to save seeds stored in the world's first gene bank. Three themes illustrating the nature of science help examine Vavilov's life: explaining natural phenomena, uncompromising human endeavor, and revising scientific knowledge. The case study concludes with four questions to stimulate student inquiry and self-guided research. They also deepen student understanding of Vavilov's personal sacrifices to ensure use and conservation of plant biodiversity.

  12. Determinants and mapping of collective perceptions of technological risk: the case of the second nuclear power plant in Taiwan.

    Science.gov (United States)

    Hung, Hung-Chih; Wang, Tzu-Wen

    2011-04-01

    Nuclear power is a highly controversial and salient example of environmental risk. The siting or operating of a nuclear power plant often faces widespread public opposition. Although studies of public perceptions of nuclear power date back to 1970s, little research attempts to explain the spatial heterogeneity of risk attitude toward nuclear power among individuals or communities. This article intends to improve the knowledge about the major factors contributing to nuclear power plant risk perceptions by mapping the geographical patterns of local risk perception and examining the determinants in forming the nature and distribution of the perceived risk among potentially affected population. The analysis was conducted by a case study of the Second Nuclear Power Plant (SNPP) in Taiwan by using a novel methodology that incorporates a comprehensive risk perception (CRP) model into an ethnographic approach called risk perception mapping (RPM). First, we examined the determinants of local nuclear power risk perceptions through the CRP model and multivariate regression analysis. Second, the results were integrated with the RPM approach to map and explain the spatial pattern of risk perceptions. The findings demonstrate that the respondents regard the nuclear power plant as an extremely high-risk facility, causing them to oppose the SNPP and reject the compensation payment to accept its continuing operation. Results also indicate that perceptions of nuclear power risk were mainly influenced by social trust, psychological and socioeconomic attributes, proximity, and the perceived effects of the SNPP on the quality of everyday life.

  13. Multi-scale simulation of plant stem reinforcement by brachysclereids: A case study in apple fruit peduncles.

    Science.gov (United States)

    Horbens, Melanie; Branke, Dominik; Gärtner, Roland; Voigt, Axel; Stenger, Florian; Neinhuis, Christoph

    2015-10-01

    Sclereid formation in addition to or in gaps of fragmented fibre rings is common in dicotyledonous plant stems. Whether this sclereid formation is force-triggered remains open so far. In fruit peduncles of several Malus species as modified plant stems, for example, the persistent fibre ring is displaced to the centre by formation of cortex parenchyma during growth. Parenchyma cells subsequently differentiate into an additional layer of brachysclereids, previously interpreted as an adaptation to continuously rising fruit loads. The present study pursues a multi-scale numerical modelling approach, to verify the important effect for different cellular architectures in both sclerenchyma categories on the stiffness of these tissues and the entire peduncle. First, different material properties are simulated analogue to plant tissues on the basis of three cell types. A regular three-dimensional and a random Voronoi microstructure combined with various mechanical cell wall parameters are applied. Using homogenisation simulations based on HILL's principle, numerical calculations predict a lower effective homogenised tissue stiffness of isodiametric brachysclereids compared to those of fibres, confirming experimentally obtained data from Malus fruit peduncles. Furthermore, a curved peduncle model with a complex arrangement of different material layers is generated. Diverse material sets are tested under three representative loadings, using an adaptive diffuse domain approach (AMDiS). The model explains the function of sclereids as considerable contributors to the stiffness against bending and tensile deformations, as well as torsion, especially in consequence of superimposed load conditions in the case of a curved plant stem.

  14. Medicinal Plants and Ethnomedicine in Peril: A Case Study from Nepal Himalaya

    Directory of Open Access Journals (Sweden)

    Ripu M. Kunwar

    2014-01-01

    Full Text Available The impacts of climate change were severe on indigenous medicinal plant species and their dependent communities. The harvesting calendar and picking sites of these species were no longer coinciding and the changes were affecting harvesters’ and cultivators’ abilities to collect and use those species. Secondary sites: road-heads, wastelands, regenerated forests, and so forth, were being prioritized for collection and the nonindigenous medicinal plant species were being increasingly introduced into the medical repertoire as a substitution and to diversify the local medicinal stock. Acceptance and application of nonindigenous species and sites for livelihood and ethnopharmacopoeias with caution were considered as an important adaptation strategy. Findings on species and site specific accounts urged further researches on medicinal plants, ethnomedicine, and their interrelationship with impacts of climate change.

  15. Can phylogeny predict chemical diversity and potential medicinal activity of plants? A case study of Amaryllidaceae

    DEFF Research Database (Denmark)

    Rønsted, Nina; Symonds, Matthew RE; Birkholm, Trine;

    2012-01-01

    a predictive approach enabling more efficient selection of plants for the development of traditional medicine and lead discovery. However, this relationship has rarely been rigorously tested and the potential predictive power is consequently unknown. Results: We produced a phylogenetic hypothesis...... for the medicinally important plant subfamily Amaryllidoideae (Amaryllidaceae) based on parsimony and Bayesian analysis of nuclear, plastid, and mitochondrial DNA sequences of over 100 species. We tested if alkaloid diversity and activity in bioassays related to the central nervous system are significantly correlated......Background: During evolution, plants and other organisms have developed a diversity of chemical defences, leading to the evolution of various groups of specialized metabolites selected for their endogenous biological function. A correlation between phylogeny and biosynthetic pathways could offer...

  16. Reuse of process water in a waste-to-energy plant: An Italian case of study.

    Science.gov (United States)

    Gardoni, Davide; Catenacci, Arianna; Antonelli, Manuela

    2015-09-01

    The minimisation of water consumption in waste-to-energy (WtE) plants is an outstanding issue, especially in those regions where water supply is critical and withdrawals come from municipal waterworks. Among the various possible solutions, the most general, simple and effective one is the reuse of process water. This paper discusses the effectiveness of two different reuse options in an Italian WtE plant, starting from the analytical characterisation and the flow-rate measurement of fresh water and process water flows derived from each utility internal to the WtE plant (e.g. cooling, bottom ash quenching, flue gas wet scrubbing). This census allowed identifying the possible direct connections that optimise the reuse scheme, avoiding additional water treatments. The effluent of the physical-chemical wastewater treatment plant (WWTP), located in the WtE plant, was considered not adequate to be directly reused because of the possible deposition of mineral salts and clogging potential associated to residual suspended solids. Nevertheless, to obtain high reduction in water consumption, reverse osmosis should be installed to remove non-metallic ions (Cl(-), SO4(2-)) and residual organic and inorganic pollutants. Two efficient solutions were identified. The first, a simple reuse scheme based on a cascade configuration, allowed 45% reduction in water consumption (from 1.81 to 0.99m(3)tMSW(-1), MSW: Municipal Solid Waste) without specific water treatments. The second solution, a cascade configuration with a recycle based on a reverse osmosis process, allowed 74% reduction in water consumption (from 1.81 to 0.46m(3)tMSW(-1)). The results of the present work show that it is possible to reduce the water consumption, and in turn the wastewater production, reducing at the same time the operating cost of the WtE plant. Copyright © 2015 Elsevier Ltd. All rights reserved.

  17. What drives the career choice among engineers? A case in Malaysian manufacturing plant

    Directory of Open Access Journals (Sweden)

    Choo, Ling Suan

    2012-01-01

    Full Text Available This empirical study was conducted to determine factors that influence the career choice among engineers in a Malaysian manufacturing plant. Subjects of this study were taken from engineers in one of manufacturing plant in Malaysia. As hypothesized, the results suggest that perceptions of person-job fit and financial rewards are significant factors that influence the career choice of engineers. Contrast to our hypothesis, influence from family members does not have any impact in determining the career choice among engineers. Interventions in attracting more engineers to remain in their career path and limitations of the study are also being discussed in the paper.

  18. Direct sale as a means for promoting the sustainable use of plant genetic resources: the case of the Tuscany Region

    Directory of Open Access Journals (Sweden)

    Diego Naziri

    2011-11-01

    Full Text Available Similarly to other Northern countries, Italy has witnessed a growth in recent years of forms of direct sale of agri-food products. These so-called short supply chains often open new opportunities for the development and conservation of rural areas which are not merely economic in nature. The case study described here presents the results of a survey conducted in the Tuscany Region the purpose of which was to understand if and how direct sale has a part to play in promoting more diversified agricultural systems and in increasing or maintaining agrobiodiversity. The support that the institutions provide for direct sale in this context can be considered as a form of implementation of the FAO International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA that Italy has ratified and which obliges its contracting parties to promote a sustainable use of plant genetic resources.

  19. Analysis of the differences between the accounting and tax treatment for items of property, plant and equipment: The Peruvian case

    Directory of Open Access Journals (Sweden)

    Oscar Alfredo Díaz Becerra

    2012-12-01

    Full Text Available This research work aims principally to make an analysis showing differences between the measurement and the recognition of items of property, plant and equipment. It focuses on the differences caused by existing differences between the treatment settled in the accounting standards and the one settled in the tax regulations related to Corporate Income Tax, for Peruvian case.A review of the related accounting standards and the standards established in the Peruvian Income Tax Law and its regulations have been considered in the current work. Thus, we are going to identify the main differences arising from the application of both standards regarding items of property, plant and equipment.Finally, we present the main conclusions drawn from this research.

  20. Optimizing a Hybrid Energy Storage System for a Virtual Power Plant for Improved Wind Power Generation: A Case Study for Denmark

    DEFF Research Database (Denmark)

    Braun, Philipp; Swierczynski, Maciej Jozef; Diosi, Robert

    2011-01-01

    This paper describes one approach to find two optimum energy storages (ESs) to build a hybrid system which is part of a virtual power plant. Here it means the combination of the hybrid energy storage system and wind power plant (WPP). The discussed approach is applied in a case study on the power...

  1. An objective method based on assemblages of subfossil plant macro-remains to reconstruct past natural vegetation : a case study at Swifterbant, The Netherlands

    NARCIS (Netherlands)

    Schepers, Mans; Scheepens, J. F.; Cappers, Rene T. J.; van Tongeren, Onno F. R.; Raemaekers, Daan C. M.; Bekker, Renee M.; Schepers, 28286

    2013-01-01

    We present a new method of identifying past plant communities based on a palaeobotanical dataset. The dataset used as a case study consists of plant macro-remains retrieved from the Neolithic settlement Swifterbant S4, The Netherlands. Taxa were grouped based on their present-day concurrence values.

  2. La gestion des eaux souterraines et des steppes en Syrie : une ouverture internationale sous contrôle

    OpenAIRE

    Saadé-Sbeih, Myriam; Jaubert, Ronald; Al-Dbiyat, Mohamed

    2014-01-01

    À partir de la fin des années 1990, dans un contexte d’ouverture à l’international, les autorités syriennes adoptèrent une posture conforme au discours des organisations internationales de développement en redéfinissant les politiques d’exploitation des eaux souterraines et des parcours steppiques. Si les programmes mis en œuvre semblent dans un premier temps correspondre à l’adoption des principes et instruments de régulation et de gestion des ressources naturelles promus par les organisatio...

  3. Gestion territorial et valorisation du patrimoine: Vers un développement régional durable

    OpenAIRE

    Guillaume Marceau; Thomas Metzger; Nehme Azoury

    2015-01-01

    Cet article traite de la valorisation du patrimoine des communes de France dans une perspective de gestion territoriale et de rééquilibrage des économies régionales. Nous nous attachons notamment à montrer dans quelle mesure une allocation même modérée de moyens à la mise en valeur de différentes formes de patrimoine occasionne des retombées économiques plus que proportionnelles aux efforts consentis. Ce phénomène étant vraisemblablement accentué par l’importance du secteur touristique dans l...

  4. L'ÉVOLUTION DES PRATIQUES DE CONTRÔLE DE GESTION DANS LES ENTREPRISES RUSSES APRÈS 1992

    OpenAIRE

    Nobre, Thierry; Riskal, Dmitry

    2003-01-01

    International audience; L'année 1992 est inscrite dans l'histoire de la Russie comme le passage définitif d'une économie planifiée à une économie de marché suivi de changements politiques et économiques fondamentaux. Il s'agit, à partir d'une enquête, réalisée auprès de 16 grandes entreprises russes, d'étudier les évolutions des pratiques de contrôle de gestion, provoquées par ce changement radical de l'environnement.

  5. Integrated monitoring environmental system applied to waste management; Sistema integrato di monitoraggio ambientale applicato alla gestione dei rifiuti

    Energy Technology Data Exchange (ETDEWEB)

    Morselli, L. [Bologna Univ., Bologna (Italy)

    2000-11-01

    For every antropic process is important the knowledge of entity of processes and the interaction with surrounding environment. This paper defines the environmental monitoring and proposes a possible application of an integrated system of waste management. [Italian] Per ogni processo antropico, soprattutto per quelle attivita' a forte impatto ambientale, uno degli obiettivi e' la conoscenza affidabile della loro entita' e della loro interazione con l'ambiente circostante. Questa nota definisce il monitoraggio ambientale e propone un approccio ad una possible applicazione ad un sistema integrato di gestione dei rifiuti.

  6. a Case study of medicinal plant Conservation in the Eastern Cape

    African Journals Online (AJOL)

    community development organisation and a traditional health practitioner ... interviews were done with each of the three key staff members engaged in the project ... From the traditional healers' perspective medicinal plants are ... statistical information, assessment, observation and recording processes on the studied entity.

  7. Influence of Content Knowledge on Pedagogical Content Knowledge: The Case of Teaching Photosynthesis and Plant Growth

    Science.gov (United States)

    Kapyla, Markku; Heikkinen, Jussi-Pekka; Asunta, Tuula

    2009-01-01

    The aim of the research was to investigate the effect of the amount and quality of content knowledge on pedagogical content knowledge (PCK). The biological content photosynthesis and plant growth was used as an example. The research sample consisted of 10 primary and 10 secondary (biology) teacher students. Questionnaires, lesson preparation task…

  8. Marine ecological habitat: A case study on projected thermal power plant around Dharamtar creek, India

    Digital Repository Service at National Institute of Oceanography (India)

    Kulkarni, V.A.; Naidu, V.S.; Jagtap, T.G.

    water discharges from konakovo tps on sex cycles of fish in the Ivankovo reservoir, Tr. VGBO, 21, 63-82 (1977). Fox, J.L. and M.S. Moyer: Effect of power plant chlorination on estuarine productivity. Chesapeake Sci., 16, 66-68 (1975). Gray, J.S., K...

  9. Evaluation of Power Generation Efficiency of Cascade Hydropower Plants: A Case Study

    Directory of Open Access Journals (Sweden)

    Jiahua Wei

    2013-02-01

    Full Text Available Effective utilization of scarce water resources has presented a significant challenge to respond to the needs created by rapid economic growth in China. In this study, the efficiency of the joint operation of the Three Gorges and Gezhouba cascade hydropower plants in terms of power generation was evaluated on the basis of a precise simulation-optimization technique. The joint operation conditions of the Three Gorges and Gezhouba hydropower plants between 2004 and 2010 were utilized in this research in order to investigate the major factors that could affect power output of the cascade complex. The results showed that the current power output of the Three Gorges and Gezhouba cascade complex had already reached around 90% of the maximum theoretical value. Compared to other influencing factors evaluated in this study, the accuracy of hydrological forecasts and flood control levels can have significant impact on the power generating efficiency, whereas the navigation has a minor influence. This research provides a solid quantitative-based methodology to assess the operation efficiency of cascade hydropower plants, and more importantly, proposes potential methods that could improve the operation efficiency of cascade hydropower plants.

  10. Measuring dry plant residues in grasslands: A case study using AVIRIS

    Science.gov (United States)

    Fitzgerald, Michael; Ustin, Susan L.

    1992-01-01

    Grasslands, savannah, and hardwood rangelands are critical ecosystems and sensitive to disturbance. Approximately 20 percent of the Earth's surface are grasslands and represent 3 million ha. in California alone. Developing a methodology for estimating disturbance and the effects of cumulative impacts on grasslands and rangelands is needed to effectively monitor these ecosystems. Estimating the dry biomass residue remaining on rangelands at the end of the growing season provides a basis for evaluating the effectiveness of land management practices. The residual biomass is indicative of the grazing pressure and provides a measure of the system capacity for nutrient cycling since it represents the maximum organic matter available for decomposition, and finally, provides a measure of the erosion potential for the ecosystem. Remote sensing presents a possible method for measuring dry residue. However, current satellites have had limited application due to the coarse spatial scales (relative to the patch dynamics) and insensitivity of the spectral coverage to resolve dry plant material. Several hypotheses for measuring the biochemical constituents of dry plant material, particularly cellulose and lignin, using high spectral resolution sensors were proposed. The use of Airborne Visible/Infrared Imaging Spectrometers (AVIRIS) to measure dry plant residues over an oak savannah on the eastern slopes of the Coast Range in central California was investigated and it was asked what spatial and spectral resolutions are needed to quantitatively measure dry plant biomass in this ecosystem.

  11. CO2 capture and storage in Greece: A case study from komotini ngcc power plant

    Directory of Open Access Journals (Sweden)

    Koukouzas Nikolaos

    2006-01-01

    Full Text Available The aim of this paper is to examine the possibilities for the abatement of CO2 emissions in the Greek fossil fuel power generation sector. An overview of CO2 capture, transportation, and storage concepts, on which the R&D community is focused, is presented. The implementation of post-combustion CO2 capture options in an existing fossil fuel power plant is then examined and the consequences on the overall plant performance are determined. Finally, the possibilities of transportation and then underground storage of the pure CO2 stream are analyzed taking into account both technical and economical factors. The results of this analysis show that CO2 sequestration is technically feasible for existing fossil fuel fired power plants in Greece. However, substantial reduction in plant efficiency is observed due to increased energy demand of the technologies used as well as in electricity production cost due to capital and operation costs of capture, transport, and storage of CO2. .

  12. Soil-plant-animal transfer models to improve soil protection guidelines: A case study from Portugal

    NARCIS (Netherlands)

    Rodrigues, S.M.; Pereira, M.E.; Duarte, A.C.; Römkens, P.F.A.M.

    2012-01-01

    Food chain models are essential tools to assess risks of soil contamination in view of product quality including fodder crops and animal products. Here we link soil to plant transfer (SPT) models for potentially toxic elements (PTEs) including As, Ba, Cd, Co, Cu, Hg, Ni, Pb, Sb, U and Zn with models

  13. Plants Species Diversity in Hyrcanian Hardwood Forests, Northern Iran (Case Study: Mazandaran Province

    Directory of Open Access Journals (Sweden)

    Kambiz Abrari Vajari

    2013-12-01

    Full Text Available In order to better understand and manage forest ecosystems, it is important to study the relationship between environmental factors and plants in these ecosystems. We investigated plant species diversity of three hardwood forest stands in the Hyrcanian forests, Sari, northern Iran. Our aim was to determine the effect of forest stand type on the diversity of plant species. One plot 150 × 150 m established at the center of each forest stand and in each plot, nine subplots 50 × 50 m were selected. Diversity values (Richness, diversity and evenness indices were measured in five sample areas 0.01 ha per 50 × 50 m quadrates by estimating cover percentage of each species. The results showed that Geophytes (43.33% had the highest life form spectrum among species. JACCARD'S similarity index revealed that the highest values exist between Parrotia-Carpinus and Carpinus stands. All herb layer species diversity indices varied significantly among different forest stands. Cover percentage significantly positively correlated with diversity indices in Parrotia-Carpinus stand. Diversity and richness indices of herb-layers plants were significantly negatively correlated with cover percentage in Fagus stand. Correlation analysis between all diversity measures and cover percentage in Carpinus stand wasn't significant. The result of the present study revealed that species diversity in temperate broad-leaved deciduous forest was significantly influenced by forest stand type

  14. Biomass power plants and health problems among nearby residents: A case study in Thailand

    Directory of Open Access Journals (Sweden)

    Chudchawal Juntarawijit

    2013-10-01

    Full Text Available Objectives: Electricity generation from biomass has become a boom business. However, currently, concerns over their environmental and health impact have emerged. This study aimed to explore these health problems by studying two small biomass power plants in Thailand. Materials and Methods: Data concerning chronic diseases and health symptoms was collected from 392 people by trained interviewers by the use of a questionnaire. Results: Residents living within 1 km from the power plants had a higher prevalence of allergies (Odds ratio = 2.4, 95% CI: 1.5-4.0, asthma (OR = 2.1, 95% CI: 1.0-4.4 and chronic obstructive pulmonary disease (COPD (OR = 2.7, 95% CI: 1.0-8.4. The risks of other symptoms, itching/rash, eye irritation, cough, stuffy nose, allergic symptoms, sore throat, and difficulty breathing among those living within 0.5 km from the power plants (OR = 2.5-8.5 were even more marked. Conclusions: It has been concluded that without a proper control, pollution from the biomass power plants can cause significant health problems to the nearby residents.

  15. Antelope bitterbrush reestablishment: a case study of plant size and browse protection effects.

    Science.gov (United States)

    G. Randy Johnson; Joel P. Okula

    2006-01-01

    After an intense stand-replacement fire in south-central Oregon, 1-y-old (1+0) bareroot seedlings of antelope bitterbrush (Purshia tridentata (Pursh) DC. [Rosaceae]) were outplanted over a 4-y period. Paired-plots were established to examine the benefits of protecting the plants from damage due to animal browsing with Vexar mesh tubing. In the first...

  16. Biodiversity as a multidimensional construct: a review, framework and case study of herbivory's impact on plant biodiversity.

    Science.gov (United States)

    Naeem, S; Prager, Case; Weeks, Brian; Varga, Alex; Flynn, Dan F B; Griffin, Kevin; Muscarella, Robert; Palmer, Matthew; Wood, Stephen; Schuster, William

    2016-12-14

    Biodiversity is inherently multidimensional, encompassing taxonomic, functional, phylogenetic, genetic, landscape and many other elements of variability of life on the Earth. However, this fundamental principle of multidimensionality is rarely applied in research aimed at understanding biodiversity's value to ecosystem functions and the services they provide. This oversight means that our current understanding of the ecological and environmental consequences of biodiversity loss is limited primarily to what unidimensional studies have revealed. To address this issue, we review the literature, develop a conceptual framework for multidimensional biodiversity research based on this review and provide a case study to explore the framework. Our case study specifically examines how herbivory by whitetail deer (Odocoileus virginianus) alters the multidimensional influence of biodiversity on understory plant cover at Black Rock Forest, New York. Using three biodiversity dimensions (taxonomic, functional and phylogenetic diversity) to explore our framework, we found that herbivory alters biodiversity's multidimensional influence on plant cover; an effect not observable through a unidimensional approach. Although our review, framework and case study illustrate the advantages of multidimensional over unidimensional approaches, they also illustrate the statistical and empirical challenges such work entails. Meeting these challenges, however, where data and resources permit, will be important if we are to better understand and manage the consequences we face as biodiversity continues to decline in the foreseeable future.

  17. Biodiversity as a multidimensional construct: a review, framework and case study of herbivory's impact on plant biodiversity

    Science.gov (United States)

    Naeem, S.; Prager, Case; Weeks, Brian; Varga, Alex; Flynn, Dan F. B.; Griffin, Kevin; Muscarella, Robert; Palmer, Matthew; Wood, Stephen; Schuster, William

    2016-01-01

    Biodiversity is inherently multidimensional, encompassing taxonomic, functional, phylogenetic, genetic, landscape and many other elements of variability of life on the Earth. However, this fundamental principle of multidimensionality is rarely applied in research aimed at understanding biodiversity's value to ecosystem functions and the services they provide. This oversight means that our current understanding of the ecological and environmental consequences of biodiversity loss is limited primarily to what unidimensional studies have revealed. To address this issue, we review the literature, develop a conceptual framework for multidimensional biodiversity research based on this review and provide a case study to explore the framework. Our case study specifically examines how herbivory by whitetail deer (Odocoileus virginianus) alters the multidimensional influence of biodiversity on understory plant cover at Black Rock Forest, New York. Using three biodiversity dimensions (taxonomic, functional and phylogenetic diversity) to explore our framework, we found that herbivory alters biodiversity's multidimensional influence on plant cover; an effect not observable through a unidimensional approach. Although our review, framework and case study illustrate the advantages of multidimensional over unidimensional approaches, they also illustrate the statistical and empirical challenges such work entails. Meeting these challenges, however, where data and resources permit, will be important if we are to better understand and manage the consequences we face as biodiversity continues to decline in the foreseeable future. PMID:27928041

  18. Soil and plant changing after invasion: the case of Acacia dealbata in a Mediterranean ecosystem.

    Science.gov (United States)

    Lazzaro, Lorenzo; Giuliani, Claudia; Fabiani, Arturo; Agnelli, Alessandro Elio; Pastorelli, Roberta; Lagomarsino, Alessandra; Benesperi, Renato; Calamassi, Roberto; Foggi, Bruno

    2014-11-01

    Acacia dealbata Link (Fabaceae) is one of the most invasive species in the Mediterranean ecosystems of Europe, Africa and America, where it has been proved to exert strong effects on soil and plant communities. In Italy A. dealbata has been largely used for ornamental and forestry purpose and is nowadays spreading in several areas. The present study was addressed to evaluate the impacts on soil chemical properties, soil microbial communities and understory plant communities and to assess the relationships among these compartments after the invasion of A. dealbata in a typical Mediterranean shrubland. Towards these aims, a soil and vegetation sampling was performed in Elba Island where A. dealbata is invading the sclerophyllous native vegetation. Three levels of invasion status were differentiated according to the gradient from invaded, to transitional and non-invaded vegetation. Quantitative and qualitative alterations of soil chemical properties and microbial communities (i.e. bacterial and fungal communities) and above-ground understory plant communities were found. In particular, the invaded soils had lower pH values than both the non-invaded and transitional ones. High differences were detected for both the total N and the inorganic fraction (NH4(+) and NO3(-)) contents, which showed the ranking: invaded>transitional>non-invaded soils. TOC and C/N ratio showed respectively higher and lower values in invaded than in non-invaded soils. Total plant covers, species richness and diversity in both the non-invaded and transitional subplots were higher than those in the invaded ones. The contribution of the nitrophilous species was significantly different among the three invasion statuses, with a strong increase going from native to transitional and invaded subplots. All these data confirm that A. dealbata modifies several compartments of the invaded ecosystems, from soil chemical properties to soil and plant microbial communities determining strong changes in the

  19. Definition of sampling units begets conclusions in ecology: the case of habitats for plant communities

    Directory of Open Access Journals (Sweden)

    Martin A. Mörsdorf

    2015-03-01

    Full Text Available In ecology, expert knowledge on habitat characteristics is often used to define sampling units such as study sites. Ecologists are especially prone to such approaches when prior sampling frames are not accessible. Here we ask to what extent can different approaches to the definition of sampling units influence the conclusions that are drawn from an ecological study? We do this by comparing a formal versus a subjective definition of sampling units within a study design which is based on well-articulated objectives and proper methodology. Both approaches are applied to tundra plant communities in mesic and snowbed habitats. For the formal approach, sampling units were first defined for each habitat in concave terrain of suitable slope using GIS. In the field, these units were only accepted as the targeted habitats if additional criteria for vegetation cover were fulfilled. For the subjective approach, sampling units were defined visually in the field, based on typical plant communities of mesic and snowbed habitats. For each approach, we collected information about plant community characteristics within a total of 11 mesic and seven snowbed units distributed between two herding districts of contrasting reindeer density. Results from the two approaches differed significantly in several plant community characteristics in both mesic and snowbed habitats. Furthermore, differences between the two approaches were not consistent because their magnitude and direction differed both between the two habitats and the two reindeer herding districts. Consequently, we could draw different conclusions on how plant diversity and relative abundance of functional groups are differentiated between the two habitats depending on the approach used. We therefore challenge ecologists to formalize the expert knowledge applied to define sampling units through a set of well-articulated rules, rather than applying it subjectively. We see this as instrumental for progress in

  20. Biomonitoring of Air Pollution by Magnetic Measurements of Native and Transplanted Lichens; Two Case Studies Around Cement Plants

    Science.gov (United States)

    Winkler, A.; Paoli, L.; Kodnik, D.; Candotto Carniel, F.; Guttová, A.; Loppi, S.; Sagnotti, L.; Tretiach, M.

    2015-12-01

    A cement plant is a source of dust pollution and lichens are suitable biomonitors of the impact of airborne pollutants released during cement production. We investigated the magnetic and chemical properties of lichens exposed around two cement plants, located in SW Slovakia and in NE Italy, respectively. We characterized the magnetic properties of the lichen Evernia prunastri exposed for 180 days at selected sites around a Slovak cement plant in order to define the magnetic mineralogy and test the correlations between the concentration-dependent magnetic parameters and the content of heavy metals and crustal elements in the thalli. In addition, we compared the magnetic properties of the transplants to those carried by native thalli of the lichen Xanthoria parietina and neighboring soils, barks and rocks. The data indicated a substantial homogenous magnetic mineralogy, with the exception of a sample collected from a basalt quarry. The transplants showed an excellent correlation between the saturation remanent magnetization (Mrs) and the concentration of Fe; the concentrations of the elements linked to cement production also correlated to Mrs values, apart from the basalt quarry sample. In the second context, we characterized the magnetic properties of the lichen Pseudevernia furfuracea transplanted near a cement plant in NE Italy. The transplants were exposed for 2 months in 40 sites distributed in surrounding rural, urban and industrial areas. In this case, the agreement between the magnetic and elemental datasets pointed out a modest environmental impact of the cement plant compared to the neighboring industrial activities, which resulted in significantly higher values of the concentration-dependent magnetic parameters. Magnetic analyses on lichens can expand the dataset of passive dust collectors in environmental magnetism, with the advantage, for the transplants, of precisely knowing the exposure time and the initial conditions.

  1. Universal plant DNA barcode loci may not work in complex groups: a case study with Indian berberis species.

    Directory of Open Access Journals (Sweden)

    Sribash Roy

    Full Text Available BACKGROUND: The concept of DNA barcoding for species identification has gained considerable momentum in animals because of fairly successful species identification using cytochrome oxidase I (COI. In plants, matK and rbcL have been proposed as standard barcodes. However, barcoding in complex genera is a challenging task. METHODOLOGY AND PRINCIPAL FINDINGS: We investigated the species discriminatory power of four reportedly most promising plant DNA barcoding loci (one from nuclear genome--ITS, and three from plastid genome--trnH-psbA, rbcL and matK in species of Indian Berberis L. (Berberidaceae and two other genera, Ficus L. (Moraceae and Gossypium L. (Malvaceae. Berberis species were delineated using morphological characters. These characters resulted in a well resolved species tree. Applying both nucleotide distance and nucleotide character-based approaches, we found that none of the loci, either singly or in combinations, could discriminate the species of Berberis. ITS resolved all the tested species of Ficus and Gossypium and trnH-psbA resolved 82% of the tested species in Ficus. The highly regarded matK and rbcL could not resolve all the species. Finally, we employed amplified fragment length polymorphism test in species of Berberis to determine their relationships. Using ten primer pair combinations in AFLP, the data demonstrated incomplete species resolution. Further, AFLP analysis showed that there was a tendency of the Berberis accessions to cluster according to their geographic origin rather than species affiliation. CONCLUSIONS/SIGNIFICANCE: We reconfirm the earlier reports that the concept of universal barcode in plants may not work in a number of genera. Our results also suggest that the matK and rbcL, recommended as universal barcode loci for plants, may not work in all the genera of land plants. Morphological, geographical and molecular data analyses of Indian species of Berberis suggest probable reticulate evolution and thus

  2. Worst Case study method to assess the environmental impact of amine emissions from a CO{sub 2} capture plant

    Energy Technology Data Exchange (ETDEWEB)

    Karl, M.; Berglen, T.F.; Denby, B. (Norwegian Institute for Air Research, NILU, Kjeller (Norway)); Wright, R.F. (Norwegian Institute for Water Research, NIVA, Oslo (Norway))

    2011-07-15

    Use of amines is one of the leading technologies for post-combustion carbon capture from gas and coal-fired power plants. A CO{sub 2} capture plant using amine technology will release amines (as gas and dissolved in droplets) to the air. These will undergo photo-oxidation and other reactions to form hundreds of different chemical compounds in the atmosphere after their release. The main aim of the current study is to estimate the potential adverse human health and environmental impacts given ''worst case'' assumptions on emission, dispersion and deposition of amines and their photo-oxidation products. We used a 40 x 40 km2 study area in the vicinity of a planned 1 Mg/yr CO{sub 2} capture facility at the gas-fired power plant at Mongstad, western Norway. We assumed that the plant would release 40 t/yr monoethanol amine (MEA) and 5 t/yr diethyl amine. With respect to inhalation exposure, the recommended risk threshold for N-nitrosodiethylamine (0.02 ng/m3 in air; US EPA) was exceeded in the 40 x 40 km2 study region. Drinking water standards for nitrosamines would be exceeded by about a factor of 3. MEA concentrations would exceed toxicity limits for aquatic organisms also by about a factor of 3. The ''worst case'' conditions may be different at other sites because the geographic location and the local meteorology have a large influence on both the atmospheric dispersion of pollutants and the local exposure of the population and the environment. Additional toxicity studies and field experiments are necessary to investigate biodegradation and retention of the compounds in soil and water before final conclusions can be drawn with respect to the maximum allowable emissions of amines and their oxidation products from CO{sub 2} capture plants. The ''worst case'' approach can be applied to other emitted air pollutants. (Author)

  3. Fatigue damage in nuclear power plants: cases study; Endommagement par fatigue dans les centrales nucleaires: illustration par quelques cas rencontres

    Energy Technology Data Exchange (ETDEWEB)

    Goltrant, O.; Thebault, Y. [Electricite de France (EDF/GDL), 93 - Saint-Denis (France). Groupe des Labs; Cipiere, M.F. [FRAMATOME, 92 - Paris-La-Defense (France)

    2001-07-01

    Some fatigue cracks have been detected on nuclear power plants components. Generally they appears under local solicitations not correctly predicted. Two cases are presented in this paper to illustrate the problem: the pitting during mechanical fatigue where the stresses are induced by the pumps vibrations or by fluid flow; the mixing zones of RRA circuit (N4 bearing) where the stresses are induced by the flow of different temperature fluids. The examination allowed the identification of the cracking origin and the development of corrective solutions. (A.L.B.)

  4. Hydro-economic performances of streamflow withdrawal strategies: the case of small run-of-river power plants

    Science.gov (United States)

    Basso, Stefano; Lazzaro, Gianluca; Schirmer, Mario; Botter, Gianluca

    2014-05-01

    setups and management strategies. Benefits connected to ecosystem services provided by unimpaired riverine environments can be also included in the analysis, possibly accounting for the disruptive effect of multiple run-of-river power plants built in cascade along the same river. The application to case studies in the Alpine region shows the potential of the tool to assess different management strategies and design solution, and to evaluate local and catchment scale impacts of small run-of-river hydropower development.

  5. Reconstructing the plant mitochondrial genome for marker discovery: a case study using Pinus.

    Science.gov (United States)

    Donnelly, Kevin; Cottrell, Joan; Ennos, Richard A; Vendramin, Giovanni Guiseppe; A'Hara, Stuart; King, Sarah; Perry, Annika; Wachowiak, Witold; Cavers, Stephen

    2016-12-20

    Whole-genome-shotgun (WGS) sequencing of total genomic DNA was used to recover ~1 Mbp of novel mitochondrial (mtDNA) sequence from Pinus sylvestris (L.) and three members of the closely-related Pinus mugo species complex. DNA was extracted from megagametophyte tissue from six mother trees from locations across Europe and 100 bp paired-end sequencing was performed on the Illumina HiSeq platform. Candidate mtDNA sequences were identified by their size and coverage characteristics, and by comparison with published plant mitochondrial genomes. Novel variants were identified, and primers targeting these loci were trialled on a set of 28 individuals from across Europe. In total, 31 SNP loci were successfully resequenced, characterising 15 unique haplotypes. This approach offers a cost effective means of developing marker resources for mitochondrial genomes in other plant species where reference sequences are unavailable. This article is protected by copyright. All rights reserved.

  6. Fidelity and Promiscuity in an Ant-Plant Mutualism: A Case Study of Triplaris and Pseudomyrmex

    Science.gov (United States)

    Sanchez, Adriana

    2015-01-01

    The association between the myrmecophyte Triplaris and ants of the genus Pseudomyrmex is an often-reported example of mutualism but no molecular studies have examined this association to date. In this study, the interspecific relationships of Triplaris were reconstructed using five molecular markers (two chloroplast and three nuclear), and the relationships of the associated Pseudomyrmex using two molecular regions (one mitochondrial and one nuclear). A data set including all known collections of plant hosts and resident ants was also compiled. The pattern of distribution of both organisms reveals that there are varying degrees of host specificity; most ants show broader host usage (promiscuous) but one species (P. dendroicus) is faithful to a single species of Triplaris. In most ant-plant interactions, host usage is not specific at the species level and preferences may result from geographical or ecological sorting. The specificity of P. dendroicus could be based on chemical recognition of the host they were raised on. PMID:26630384

  7. Can phylogeny predict chemical diversity and potential medicinal activity of plants? A case study of Amaryllidaceae

    DEFF Research Database (Denmark)

    Rønsted, Nina; Symonds, Matthew R. E.; Birkholm, Trine

    2012-01-01

    a predictive approach enabling more efficient selection of plants for the development of traditional medicine and lead discovery. However, this relationship has rarely been rigorously tested and the potential predictive power is consequently unknown. Results: We produced a phylogenetic hypothesis......Background: During evolution, plants and other organisms have developed a diversity of chemical defences, leading to the evolution of various groups of specialized metabolites selected for their endogenous biological function. A correlation between phylogeny and biosynthetic pathways could offer...... of acetylcholinesterase (AChE) and binding to the serotonin reuptake transporter (SERT) are significantly correlated with phylogeny. This has implications for the use of phylogenies to interpret chemical evolution and biosynthetic pathways, to select candidate taxa for lead discovery, and to make recommendations...

  8. The gap between science and perception: the case of plant biotechnology in Europe.

    Science.gov (United States)

    Einsele, Arthur

    2007-01-01

    Although the global area of biotech crops continues to climb for the tenth consecutive year at a sustainable double-digit growth rate, the acceptance of biotech products from agriculture in Europe is still low. There is a gap between science and perception. It is a strong belief that the public turning against science and against GM food has been encouraged by the negative activities of NGO groups. Scientists have to overcome the purely risk-based discussion, and the benefits of plant biotechnology have to be made literally visible. GM food should be available, the benefits should be tangible and the consumer should have fun with such novel food. The gap could be reduced if genetically modified plants and the products thereof were regulated in the same way as classical products.

  9. Energy Optimization Modeling of Geothermal Power Plant (Case Study: Darajat Geothermal Field Unit III)

    Science.gov (United States)

    Sinaga, R. H. M.; Darmanto, P. S.

    2016-09-01

    Darajat unit III geothermal power plant is developed by PT. Chevron Geothermal Indonesia (CGI). The plant capacity is 121 MW and load 110%. The greatest utilization power is consumed by Hot Well Pump (HWP) and Cooling Tower Fan (CTF). Reducing the utility power can be attempted by utilizing the wet bulb temperature fluctuation. In this study, a modelling process is developed by using Engineering Equation Solver (EES) software version 9.430.The possibility of energy saving is indicated by Specific Steam Consumption (SSC) net in relation to wet bulb temperature fluctuation from 9°C up to 20.5°C. Result shows that the existing daily operation reaches its optimum condition. The installation of Variable Frequency Drive (VFD) could be applied to optimize both utility power of HWP and CTF. The highest gain is obtained by VFD HWP installation as much as 0.80% when wet bulb temperature 18.5 °C.

  10. Conservazione e gestione della Lepre italica (Lepus corsicanus

    Directory of Open Access Journals (Sweden)

    Francesco Riga

    2003-10-01

    Full Text Available Il recente riconoscimento dello status specifico della Lepre italica (Lepus corsicanus e l?accertamento dell?areale distributivo rappresentano le azioni più importanti per la conservazione di un taxon endemico che si era creduto estinto. Nella penisola la specie presenta un areale discontinuo, il cui limite settentrionale è dato dal comune di Manciano (GR, sul versante tirrenico e da una linea che dalla provincia de L'Aquila arriva al Gargano. In Sicilia la distribuzione è relativamente continua anche in aree non protette. Dati genetici hanno permesso di confermare la presenza in Corsica. Al contrario, nell?Isola d'Elba, a seguito di estese ricerche, sono stati identificati solo esemplari di L. europaeus. Nell?Italia peninsulare L. corsicanus è spesso presente in simpatria con popolazioni di L. europaeus, mentre in Sicilia la lepre europea non ha originato popolazioni stabili, nonostante l?immissione di molte migliaia di individui. La distribuzione ecologica di L. corsicanus ed analisi ambientali specifiche, suggeriscono l?adattamento prevalente agli ambienti a clima mediterraneo, benché essa sia presente anche a quote elevate (> 1.500 m s.l.m.. Dati preliminari di abbondanza relativa hanno evidenziato una situazione diversificata tra la penisola e la Sicilia e tra aree a diverso regime di gestione; un confronto tra le aree protette ha evidenziato rispettivamente valori di 5,54 e 11,73 ind./km². La riduzione quali-quantitativa e la frammentazione dell?habitat delle lepri è un fenomeno potenzialmente pericoloso per la sopravvivenza delle popolazioni, determinando fenomeni di estinzione locale dovuti alle basse densità di popolazione, inducendo fenomeni di erosione della variabilità genetica e di riduzione della fitness degli individui. L?introduzione di L. europaeus può costituire un importante fattore limitante sia per la possibile competizione

  11. Pratiques de gestion et rapports d’âge en milieu de travail

    Directory of Open Access Journals (Sweden)

    Yolande Pelchat

    2005-05-01

    Full Text Available Le vieillissement de la main-d’œuvre et ses conséquences potentielles préoccupent. Jusqu’à maintenant, les planificateurs ont eu tendance, à l’instar de chercheurs de diverses disciplines, à assimiler cette question à la présence accrue dans les milieux de travail de travailleurs âgés ou de travailleurs vieillissants, des qualificatifs qui sont généralement accolés aux travailleurs dont l’âge d’état civil est 45 ans ou plus. Dans une recherche de nature exploratoire menée dans la fonction publique québécoise, nous avons choisi de suivre une avenue résolument différente et d’examiner comment différents acteurs en co-présence dans les milieux de travail (employés et gestionnaires participent à la construction et à la déconstruction des identités d’âge. L’analyse amène à voir les liens étroits entre ces identités et l’organisation du travail, plus spécifiquement les pratiques de gestion. Les résultats suggèrent, en effet, que les relations qu’entretiennent les employés d’âge différent de même que les caractéristiques attribuées aux uns et aux autres se construisent dans le cours même des pratiques de gestion. La démarche entreprise invite donc à revoir l’a priori d’un « fossé intergénérationnel », déjà existant à l’échelle de la société, et qui ferait du milieu de travail un simple lieu où se manifeste et s’exprime ce fossé.The aging workforce and its potential consequences are causes for concern. To date, planners, like researchers in various disciplines, have tended to merge this issue with the increased presence of older or aging workers - two adjectives that are generally used to describe workers aged 45 or older - in workplaces. During an exploratory study conducted within the Quebec public service, we decided to follow an entirely different path by examining how various actors in workplaces (employees and managers construct and deconstruct age identities

  12. Climatic gradient and δ13C values of plants: A case study from the Himalaya

    Science.gov (United States)

    Hirave, Pranav; Sanyal, Prasanta

    2016-04-01

    Change in atmospheric conditions is believed to be responsible for the evolution of plants. In an evolving atmosphere, gymnosperms appeared during the Carboniferous Period and appearance and diversification of angiosperms occurred during the Cretaceous time. In a symbiotic environment, difference in the response of these plant types to the climatic factors can be studied for parallel correlation. To monitor plants response with the changing climatic factors, variations in plants δ13Cleaf value can be used as one of the indicators. To investigate the variation in δ13Cleaf values in response to water availability, air temperature and a change in pCO2 pressure with elevation, five gymnosperm (Cedrus deodara, Pinus wallichiana, Pinus roxburghii, Pinus gerardiana and Abies pindrow) and two angiosperm (Betula utilis and Eucalyptus globulus) species were collected along an altitude gradient in the Himalayan mountain ranges. The studied sites cover ca. 3.5 km elevation transect. The δ13Cleaf value for Cedrus Deodara changes with altitude and mean annual precipitation (MAP). A sensitivity of 2.9 ‰ km-1 and 0.3 ‰ /100 mm was calculated for the altitude range of 1.5 km and precipitation range of 700 mm respectively. Although Pinus wallichiana do not show a correlation between elevation and δ13Cleaf value, a negative correlation between MAP and δ13Cleaf value with an average sensitivity of 0.2 ‰ /100 mm for the precipitation range of 900 mm is obtained. Comparison of results acquired from both gymnosperm and angiosperm species shows that gymnosperms are comparatively more sensitive to the climatic factors than angiosperms growing in a similar environmental setting.

  13. Perapion connexum (Schilsky, 1902) (Coleoptera, Apionidae) in Central Europe, a case of plant expansion chase

    OpenAIRE

    Marek Wanat; Attila Podlussány; Karel Schön

    2012-01-01

    Perapion connexum (Schilsky) is recorded for the first time from Hungary and Kyrgyzstan, and new distribution data from Ukraine and Russia are provided. Preliminary placements of this weevil in faunal checklists for Poland and Slovakia are here documented with detailed data. Its occurrence in Austria based on older evidence, is discussed. The neophytic and invasive in Central Europe sorrel Rumex confertus Willd. is confirmed to be its unique host plant in Poland. Morphology of the newcoming w...

  14. Case study of 85 m{sup 3} floating drum biogas plant under hilly conditions

    Energy Technology Data Exchange (ETDEWEB)

    Kalia, A.K.; Singh, S.P. [HPKV, Palampur (India). Dept. of Agricultural Engineering

    1999-05-01

    An 85 m{sup 3} floating drum biogas plant was installed at the dairy farm of HP Agricultural University, Palampur, in 1989 to meet the energy needs of cooking food in the veterinary hostel mess and for general dairy requirements. It cost nearly Rs. 0.21 million (US dollars 6293), including the cost of an 800 m gas pipe line, and is working satisfactorily without any major problems except breakage of the central guide of its gas holder. With the feed rate of 17 q cattle dung/day, 50 m{sup 3} and 30 m{sup 3} biogas was obtained in the summer and winter months, respectively, during 1989-1991. The reduction of feed rate to 9 q cattle dung/day in 1992 onwards resulted in lowering the gas production of 25 m{sup 3} and 18 m{sup 3} in the summer and winter months, respectively. This gas was just sufficient to meet 73% (9466 MJ/month) and 53% (7019 MJ/month) of the energy needs for cooking meals in the hostel alone in the summer and winter months, respectively, during the course of the study. Considering the biogas and manure obtained from the plant, the income-cost ratios during the period 1989-1991 and 1992-1997 were found to be 1.44 and 1.15, respectively, suggesting that, though the plant was under fed relatively to the requisite feed rate (21 q cattle dung/day), the installation of this plant was an economically viable proposition. (author)

  15. Two proposals for pumping calculations of non–newtonian fluids, water treatment plants disposal sludges case

    OpenAIRE

    H. Gardea–Villegas

    2008-01-01

    This paper presents two ways to calculate the pumping power of non Newtonian fluids and especially yield pseudoplastics which are the kind of disposal fluids from Water Treatment Plants. Fluids called sludges. The proposals included here, are based in methods suggested by Levenspiel (1986) applicable to determine the performance of Bingham plastics and pseudoplastic fluids using a graphical approximation of the rheological behavior of these materials. This approach has the advantage that is a...

  16. Socioeconomic impacts of nuclear power plant siting: a case study of two New England communities

    Energy Technology Data Exchange (ETDEWEB)

    Purdy, B. J.

    1976-01-01

    An examination is presented of the social, economic and political/institutional impacts of two operating nuclear power complexes on two New England communities. The work is one of a series planned to broaden knowledge of the effects of large energy-generating facilities upon the social structure of local communities. Its primary objectives are to investigate and assess social and economic impacts resulting from construction and operation of nuclear power plants and to generate hypotheses about such impacts for future testing.

  17. Retrofitting a geothermal power plant to optimize performance: A case study

    Energy Technology Data Exchange (ETDEWEB)

    Kanoglu, M.; Cengel, Y.A.

    1999-07-01

    Performance evaluation of a 12.8 MW single-flash design geothermal power plant in Northern Nevada is conducted using actual plant operating data, and potential improvement sites are identified. The unused geothermal brine reinjected back to the ground is determined to represent about 50% of the energy and 40% of the exergy available in the reservoir. The first and second law efficiencies of the plant are determined to be 6% and 22%, respectively. Optimizing the existing single-flash system is shown to increase the net power output by up to 4%. Some well-known geothermal power generation technologies including double-glass, binary, and, combined flash/binary designs as alternative to the existing system are evaluated and their optimum operating conditions are determined. It is found that a double-flash design, a binary design, and a combined flash/binary design can increase the net power output by up to 31%, 35%, and 54%, respectively, at optimum operating conditions. An economic comparison of these designs appears to favor the combined flash/binary design, followed by the double-glass design.

  18. Antigen Production in Plant to Tackle Infectious Diseases Flare Up: the Case of SARS

    Directory of Open Access Journals (Sweden)

    Olivia C eDemurtas

    2016-02-01

    Full Text Available Severe Acute Respiratory Syndrome (SARS is a dangerous infection with pandemic potential. It emerged in 2002 and its aetiological agent, the SARS Coronavirus (SARS-CoV, crossed the species barrier to infect humans, showing high morbidity and mortality rates. No vaccines are currently licensed for SARS-CoV and important efforts have been performed during the first outbreak to develop diagnostic tools. Here we demonstrate the transient expression in Nicotiana benthamiana of two important antigenic determinants of the SARS-CoV, the nucleocapsid protein (N and the membrane protein (M using a virus-derived vector or agro-infiltration, respectively. For the M protein, this is the first description of production in plants, while for plant-derived N protein we demonstrate that it is recognized by sera of patients from the SARS outbreak in Hong Kong in 2003. The availability of recombinant N and M proteins from plants opens the way to further evaluation of their potential utility for the development of diagnostic and protection/therapy tools to be quickly manufactured, at low cost and with minimal risk, to face potential new highly infectious SARS-CoV outbreaks.

  19. Antigen Production in Plant to Tackle Infectious Diseases Flare Up: The Case of SARS.

    Science.gov (United States)

    Demurtas, Olivia C; Massa, Silvia; Illiano, Elena; De Martinis, Domenico; Chan, Paul K S; Di Bonito, Paola; Franconi, Rosella

    2016-01-01

    Severe acute respiratory syndrome (SARS) is a dangerous infection with pandemic potential. It emerged in 2002 and its aetiological agent, the SARS Coronavirus (SARS-CoV), crossed the species barrier to infect humans, showing high morbidity and mortality rates. No vaccines are currently licensed for SARS-CoV and important efforts have been performed during the first outbreak to develop diagnostic tools. Here we demonstrate the transient expression in Nicotiana benthamiana of two important antigenic determinants of the SARS-CoV, the nucleocapsid protein (N) and the membrane protein (M) using a virus-derived vector or agro-infiltration, respectively. For the M protein, this is the first description of production in plants, while for plant-derived N protein we demonstrate that it is recognized by sera of patients from the SARS outbreak in Hong Kong in 2003. The availability of recombinant N and M proteins from plants opens the way to further evaluation of their potential utility for the development of diagnostic and protection/therapy tools to be quickly manufactured, at low cost and with minimal risk, to face potential new highly infectious SARS-CoV outbreaks.

  20. Benefits of MS 6001B gas turbine in cogeneration: The UEM power plant case

    Energy Technology Data Exchange (ETDEWEB)

    Remy, P.M. [Usine d`Electricite de Metz (France); Boissenin, Y.M.; Moliere, M.M. [European Gas Turbines, Belfort (France)

    1996-04-01

    Long before the neologism ``Cogeneration`` was coined (around 1978), UEM`s Chambiere Power Plant -- which dates back to the turn of the century -- was already supplying the city of Metz with combined heat and power. In 1992, Chambiere experienced a major turning point in its history with the installation of a new unit based on one MS 6001B ``Heavy Duty`` gas turbine. This model, rated 38 MWe-ISO and burning natural gas or fuel oil, has become the core of a new cogeneration unit exhibiting outstanding performance: efficiency higher than 80 percent (LHV) providing a 20 percent energy saving in comparison to a conventional plant; low pollutant emissions (NO{sub x}, CO, HC) and low contribution to the greenhouse effect (CO{sub 2}). The gas turbine has been equipped with two steam injection devices, for DeNO{sub x} and power augmentation, respectively, resulting in a very flexible system. After describing the power plant and giving its main achievements in the fields of energy and emissions, the paper briefly presents several improvements intended to protect both the turbine and the environment.

  1. Un accumulateur echangeur de chaleur hybride pour la gestion simultanee des energies solaire et electrique

    Science.gov (United States)

    Ait Hammou, Zouhair

    Cette etude porte sur la conception d'un accumulateur echangeur de chaleur hybride (AECH) pour la gestion simultanee des energies solaire et electrique. Un modele mathematique reposant sur les equations de conservation de la quantite d'energie est expose. Il est developpe pour tester differents materiaux de stockage, entre autres, les materiaux a changement de phase (solide/liquide) et les materiaux de stockage sensible. Un code de calcul est mis en eeuvre sur ordinateur, puis valide a l'aide des resultats analytiques et numeriques de la litterature. En parallele, un prototype experimental a echelle reduite est concu au laboratoire afin de valider le code de calcul. Des simulations sont effectuees pour etudier les effets des parametres de conception et des materiaux de stockage sur le comportement thermique de l'AECH et sur la consommation d'energie electrique. Les resultats des simulations sur quatre mois d'hiver montrent que la paraffine n-octadecane et l'acide caprique sont deux candidats souhaitables pour le stockage d'energie destine au chauffage des habitats. L'utilisation de ces deux materiaux dans l'AECH permet de reduire la consommation d'energie electrique de 32% et d'aplanir le probleme de pointe electrique puisque 90% de l'energie electrique est consommee durant les heures creuses. En plus, en adoptant un tarif preferentiel, le calcul des couts lies a la consommation d'energie electrique montre que le consommateur adoptant ce systeme beneficie d'une reduction de 50% de la facture d'electricite.

  2. Gestion des déchets dangereux et responsabilité sociale des firmes

    Directory of Open Access Journals (Sweden)

    Faouzi Bensebaa

    2010-10-01

    Full Text Available Prenant les déchets électriques et électroniques comme terrain d’observation, cette recherche étudie les fondements du commerce illégal de déchets dangereux des pays développés vers les PED. En effet, malgré la multiplication des législations, le problème des déchets dans les pays développés, loin d’être traité en amont, l’est en grande partie en aval par leur délocalisation dans les PED. Les deux lectures proposées, économique et institutionnelle, permettent de montrer comment les contraintes de coût de gestion des déchets dans les pays développés conjuguées à l’imperfection et à la non-application des législations conduisent à des comportements socialement irresponsables. À partir de là, l’implication des parties prenantes est suggérée comme solution pour éliminer ce type de comportements.Based on the analysis of the waste electrical and electronic equipments (WEEE, the research investigates the motivations for the illegal cross-border trade in hazardous wastes from developed countries to developing countries. Although many developed countries have implemented waste shipment regulations, they are passing the risks and costs of E-waste to developing countries. Indeed, E-waste is often sent for recycling and refurbishing in developing countries. The two-side proposed approach (i.e. economical and institutional suggests that both the cost for firms to comply with increasing regulations and the imperfect implementation of regulatory restrictions lead to socially irresponsible behaviours. An increasing and better involvement of stakeholders may be put forward as a solution.

  3. Evaluer des études de gestion des entreprises : combiner des éléments principales avec des éléments pratiques

    NARCIS (Netherlands)

    Pennink, B.J.W.

    2002-01-01

    Evaluer la recherche de gestion demande une combinaison des critères classiques et des critères pratiques. Par cette combinaison il est possible de trouver une réponse cerrecte concernant la validité et l'effet de la recherche. Dans cet article nous allons décrire comment une combinaison des

  4. Gestion de la calidad y del medio ambiente en instituciones de educacion superior mediante integracion de ISO 9001 e ISO 14001

    National Research Council Canada - National Science Library

    Tlapa, Diego A; Limon, Jorge; Baez, Yolanda A

    2009-01-01

    ... la factibilidad de la integracion de gestion de la calidad y medio ambiente. Para ello, se realizo una busqueda de instituciones de educacion superior que trabajan bajo ISO 9001 e ISO 14001, encontrando 322 y 3 certificados respectivamente en el ano 2008...

  5. Assessing climate change impacts on fruit plant and pest phenology and their synchrony: the case of apple and codling moth

    Science.gov (United States)

    Felber, Raphael; Stöckli, Sibylle; Calanca, Pierluigi

    2017-04-01

    Temperature is a main climatic driver of plant phenology and the dominant abiotic factor directly affecting insect pests. Global warming is therefore expected to accelerate the development of plants and insects. Moreover, in the case of multivoltine pest species higher temperatures are expected to lead to the appearance of additional generations toward the end of the warm season. These changes could entail higher pest pressure and hence require an adaptation of pest management, but ultimately this would depend on whether plant and pest phenology remain synchronized or not. In this contribution we present an analysis of potential impacts of climate change on the phenology of the apple tree (Malus pumila L.), a fruit crop of economic relevance worldwide, and the codling moth (Cydia pomonella L.), one of its main pests. Key developmental stages of the apple and the codling moth were simulated by means of two heat summation models. The models were calibrated with lab and field data from Switzerland and subsequently run with observed weather data and various climate change scenarios. The time period between flowering termination and the harvest of the apples was compared to the appearance of the second and third generation of codling moth larvae to study the interlinkage between host and pest. To illustrate the potential for practical applications of the phenology models, we used spatial temperature data of Switzerland to produce risk maps that can serve as a basis for further studies and decision support.

  6. Gestion des externalités environnementales dans le bassin minier du Nord – Pas de Calais : une approche en termes de proximité

    Directory of Open Access Journals (Sweden)

    Gwénaël Letombe

    2006-05-01

    Full Text Available Cet article a pour objet l’application des catégories conceptuelles de la proximité à la problématique de gestion des externalités environnementales. Le cas d’étude est celui d’une zone d’ancienne industrialisation en reconversion – le bassin minier du Nord – Pas de Calais – soumise à un passif environnemental spécifique. Nous tentons de montrer que l’incertitude inhérente aux externalités induit, en premier lieu, une certaine faiblesse des proximités organisées, puis la construction de formes de proximités particulières, passant par des dispositifs régulatoires innovants. Le contenu de ces proximités, leur efficacité, leur lien avec la dynamique économique territoriale, sont analysés successivement.Managing the environmental externalities of the Nord – Pas de Calais coal field : a tentative approach in terms of proximity. The purpose of this article is to explore how the conceptual categories used in the proximity approach can be applied to such issues as the management of environmental externalities. The case study is the Nord – Pas de Calais coal field, a formerly industrial area. Consequently, we focus on the specific environmental damages in this area which is currently undergoing reconversion. The aim of this paper is to show that the uncertainty which is inherent to externalities induces some degree of weakness on the part of “organised proximities” at first, then the setting-up of specific forms of proximity via innovative regulatory tools. The contents of those proximities, their efficiency and their relevance to the local economic dynamics will be analysed successively.

  7. Intelligent Energy Management for Plug-in Hybrid Electric Vehicles: The Role of ITS Infrastructure in Vehicle Electrification Gestion énergétique intelligente pour véhicules électriques hybrides rechargeables : rôle de l’infrastructure de systèmes de transport intelligents (STI dans l’électrification des véhicules

    Directory of Open Access Journals (Sweden)

    Marano V.

    2012-08-01

    Full Text Available The desire to reduce carbon emissions due to transportation sources has led over the past decade to the development of new propulsion technologies, focused on vehicle electrification (including hybrid, plug-in hybrid and battery electric vehicles. These propulsion technologies, along with advances in telecommunication and computing power, have the potential of making passenger and commercial vehicles more energy efficient and environment friendly. In particular, energy management algorithms are an integral part of plug-in vehicles and are very important for achieving the performance benefits. The optimal performance of energy management algorithms depends strongly on the ability to forecast energy demand from the vehicle. Information available about environment (temperature, humidity, wind, road grade, etc. and traffic (traffic density, traffic lights, etc., is very important in operating a vehicle at optimal efficiency. This article outlines some current technologies that can help achieving this optimum efficiency goal. In addition to information available from telematic and geographical information systems, knowledge of projected vehicle charging demand on the power grid is necessary to build an intelligent energy management controller for future plug-in hybrid and electric vehicles. The impact of charging millions of vehicles from the power grid could be significant, in the form of increased loading of power plants, transmission and distribution lines, emissions and economics (information are given and discussed for the US case. Therefore, this effect should be considered in an intelligent way by controlling/scheduling the charging through a communication based distributed control. Le désir de réduire les émissions de carbone issues des sources de transport a conduit durant la dernière décennie au développement de nouvelles technologies de propulsion, axées sur l’électrification des véhicules (comprenant les véhicules

  8. Direction for the Estimation of Required Resources for Nuclear Power Plant Decommissioning based on BIM via Case Study

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Insu [Korea Institute of Construction Technology, Goyang (Korea, Republic of); Kim, Woojung [KHNP-Central Research Institute, Daejeon (Korea, Republic of)

    2014-05-15

    Ways to estimate decommissioning of required resources in the past have imposed great uncertainty since they analyze required resources at the construction stage, analyzing and consulting decommissioning required resources of overseas nuclear power plants. As demands on efficient management and use of complicated construction information increased these days, demands on the introduction of Building Information Modeling (herein after referred to as BIM) technology has increased. In the area of quotation, considerable effects are expected as to the accuracy and reliability predicting construction costs through the characteristics that can automatically estimate quantities by using attribute information of BIM model. BIM-based estimation and quotation of required resources is more accurate than the existing 2D-based quotations and have many advantages such as reviews over constructability and interference. It can be desirable to estimate decommissioning required resources in nuclear power plants using BIM as well as using tools that are compatible with usual international/industrial standards. As we looked into the cases where required resources were estimated, using BIM in Korea and abroad, they dealt with estimation of required resources, estimation of construction cost and process management at large. In each area, methodologies, classification systems, BIM, and realization tests have been used variably. Nonetheless, several problems have been reported, and among them, it is noticeable that although BIM standard classification system exists, no case was found that has used standard classification system. This means that no interlink among OBS (Object Breakdown Structure), WBS (Work Breakdown Structure) and CBS (Cost Breakdown Structure) was possible. Thus, for nuclear power plant decommissioning, decommissioning method and process, etc. shall be defined clearly in the stage of decommissioning strategy establishment, so that classification systems must be set up

  9. How much is too little to detect impacts? A case study of a nuclear power plant.

    Directory of Open Access Journals (Sweden)

    Mariana Mayer-Pinto

    Full Text Available Several approaches have been proposed to assess impacts on natural assemblages. Ideally, the potentially impacted site and multiple reference sites are sampled through time, before and after the impact. Often, however, the lack of information regarding the potential overall impact, the lack of knowledge about the environment in many regions worldwide, budgets constraints and the increasing dimensions of human activities compromise the reliability of the impact assessment. We evaluated the impact, if any, and its extent of a nuclear power plant effluent on sessile epibiota assemblages using a suitable and feasible sampling design with no 'before' data and budget and logistic constraints. Assemblages were sampled at multiple times and at increasing distances from the point of the discharge of the effluent. There was a clear and localized effect of the power plant effluent (up to 100 m from the point of the discharge. However, depending on the time of the year, the impact reaches up to 600 m. We found a significantly lower richness of taxa in the Effluent site when compared to other sites. Furthermore, at all times, the variability of assemblages near the discharge was also smaller than in other sites. Although the sampling design used here (in particular the number of replicates did not allow an unambiguously evaluation of the full extent of the impact in relation to its intensity and temporal variability, the multiple temporal and spatial scales used allowed the detection of some differences in the intensity of the impact, depending on the time of sampling. Our findings greatly contribute to increase the knowledge on the effects of multiple stressors caused by the effluent of a power plant and also have important implications for management strategies and conservation ecology, in general.

  10. Perapion connexum (Schilsky, 1902) (Coleoptera, Apionidae) in Central Europe, a case of plant expansion chase

    Science.gov (United States)

    Wanat, Marek; Podlussány, Attila; Schön, Karel

    2012-01-01

    Abstract Perapion connexum (Schilsky) is recorded for the first time from Hungary and Kyrgyzstan, and new distribution data from Ukraine and Russia are provided. Preliminary placements of this weevil in faunal checklists for Poland and Slovakia are here documented with detailed data. Its occurrence in Austria based on older evidence, is discussed. The neophytic and invasive in Central Europe sorrel Rumex confertus Willd. is confirmed to be its unique host plant in Poland. Morphology of the newcoming weevil is described and illustrated, and the key to all Central European species of Perapion is presented. PMID:22451784

  11. Applications of SLAR in nuclear power plant siting: A case history

    Science.gov (United States)

    Siegal, B. S.

    1980-01-01

    Over 10,000 square km of side-looking airborne radar (SLAR) imagery was obtained and analyzed for the siting of the first nuclear power plant in the Republic of the Philippines. The imagery was obtained using the Motorola APS/AN-94D (X-band) real aperture system as part of an overall remote sensing program to site and evaluate potential site regions. Analysis of SLAR images, in conjunction with LANDSAT, color, black and white, and thermal infrared images, provided basic information on structure, relative geochronology, stratigraphy, geomorphology, and ground water, which facilitated field operations and data synthesis.

  12. Perapion connexum (Schilsky, 1902 (Coleoptera, Apionidae in Central Europe, a case of plant expansion chase

    Directory of Open Access Journals (Sweden)

    Marek Wanat

    2012-03-01

    Full Text Available Perapion connexum (Schilsky is recorded for the first time from Hungary and Kyrgyzstan, and new distribution data from Ukraine and Russia are provided. Preliminary placements of this weevil in faunal checklists for Poland and Slovakia are here documented with detailed data. Its occurrence in Austria based on older evidence, is discussed. The neophytic and invasive in Central Europe sorrel Rumex confertus Willd. is confirmed to be its unique host plant in Poland. Morphology of the newcoming weevil is described and illustrated, and the key to all Central European species of Perapion is presented.

  13. Perapion connexum (Schilsky, 1902) (Coleoptera, Apionidae) in Central Europe, a case of plant expansion chase.

    Science.gov (United States)

    Wanat, Marek; Podlussány, Attila; Schön, Karel

    2012-01-01

    Perapion connexum (Schilsky) is recorded for the first time from Hungary and Kyrgyzstan, and new distribution data from Ukraine and Russia are provided. Preliminary placements of this weevil in faunal checklists for Poland and Slovakia are here documented with detailed data. Its occurrence in Austria based on older evidence, is discussed. The neophytic and invasive in Central Europe sorrel Rumex confertus Willd. is confirmed to be its unique host plant in Poland. Morphology of the newcoming weevil is described and illustrated, and the key to all Central European species of Perapion is presented.

  14. White syndrome on massive corals: A case study in Paiton power plant, East Java

    Science.gov (United States)

    Muzaki, Farid Kamal; Saptarini, Dian; Riznawati, Aida Efrini

    2017-06-01

    As a stenothermal organism, coral easily affected by high-temperature cooling water discharged by a power plant into surrounding waters; which may lead to a rapid spread and transmission of coral disease, including White Syndrome. This study aimed to measure the prevalence of WS on massive corals in Paiton Power Plant waters. Research was conductedduring May 2015 at three observation stations; west and east side of water discharge canal (DB and DT) and water intake canal (WI). Observed parameters including ambient environmental variables (sea surface and bottom temperature, salinity, dissolved oxygen/DO, pH, and visibility); the cover of life corals (percent and genera composition) and prevalence of coral disease at 5 m depth. One-way ANOVA (analysis of variance, p=0.05) was performed to test the difference of coral disease prevalence from different observation stations. As the results, Coral coverage percentage in WI (85.75%), DB (60.75%), and DT (40.8%). Prevalence of WS in DB was highest (40.49±2.12% in DB, 13.53±11.5% in DT and 6.44±3.6 %, respectively). It can be assumed that prevalence of White Syndrome in those locations may be correlated to temperature which highest average temperature occurred in DB stations.

  15. The rising threat of fungicide resistance in plant pathogenic fungi: Botrytis as a case study.

    Science.gov (United States)

    Hahn, Matthias

    2014-10-01

    The introduction of site-specific fungicides almost 50 years ago has revolutionized chemical plant protection, providing highly efficient, low toxicity compounds for control of fungal diseases. However, it was soon discovered that plant pathogenic fungi can adapt to fungicide treatments by mutations leading to resistance and loss of fungicide efficacy. The grey mould fungus Botrytis cinerea, a major cause of pre- and post-harvest losses in fruit and vegetable production, is notorious as a 'high risk' organism for rapid resistance development. In this review, the mechanisms and the history of fungicide resistance in Botrytis are outlined. The introduction of new fungicide classes for grey mould control was always followed by the appearance of resistance in field populations. In addition to target site resistance, B. cinerea has also developed a resistance mechanism based on drug efflux transport. Excessive spraying programmes have resulted in the selection of multiresistant strains in several countries, in particular in strawberry fields. The rapid erosion of fungicide activity against these strains represents a major challenge for the future of fungicides against Botrytis. To maintain adequate protection of intensive cultures against grey mould, strict implementation of resistance management measures are required as well as alternative strategies with non-chemical products.

  16. Limitations of biodiversity databases: case study on seed-plant diversity in Tenerife, Canary Islands.

    Science.gov (United States)

    Hortal, Joaquín; Lobo, Jorge M; Jiménez-Valverde, Alberto

    2007-06-01

    Databases on the distribution of species can be used to describe the geographic patterns of biodiversity. Nevertheless, they have limitations. We studied three of these limitations: (1) inadequacy of raw data to describe richness patterns due to sampling bias, (2) lack of survey effort assessment (and lack of exhaustiveness in compiling data about survey effort), and (3) lack of coverage of the geographic and environmental variations that affect the distribution of organisms. We used a biodiversity database (BIOTA-Canarias) to analyze richness data from a well-known group (seed plants) in an intensively surveyed area (Tenerife Island). Observed richness and survey effort were highly correlated. Species accumulation curves could not be used to determine survey effort because data digitalization was not exhaustive, so we identified well-sampled sites based on observed richness to sampling effort ratios. We also developed a predictive model based on the data from well-sampled sites and analyzed the origin of the geographic errors in the obtained extrapolation by means of a geographically constrained cross-validation. The spatial patterns of seed-plant species richness obtained from BIOTA-Canarias data were incomplete and biased. Therefore, some improvements are needed to use this database (and many others) in biodiversity studies. We propose a protocol that includes controls on data quality, improvements on data digitalization and survey design to improve data quality, and some alternative data analysis strategies that will provide a reliable picture of biodiversity patterns.

  17. Characterization of a thermal power plant air heater washing waste: a case study from Iran.

    Science.gov (United States)

    Saeedi, M; Amini, H R

    2007-02-01

    In Iran most of the electricity is generated by thermal power plants. As a result of fuel oil burning in winter time, the air heaters of the boilers have to be washed and cleaned frequently. The wastewater originating from air heater washing is then treated in an effluent treatment plant by chemical precipitation followed by dewatering of the sludge produced. The resulting waste is classified as specific industrial waste that should be characterized in detail under the Waste Management Act of Iran. The quantity of this waste produced in the studied power plant is about 20 tonnes year(-1). In the present investigation, the first to be carried out in Iran, seven composite samples of dewatered sludge from air heater washing wastewater treatment were subjected to investigation of the physical properties, chemical composition and leaching properties. The most likely pollutants that were of concern in this study were heavy and other hazardous metals (Cd, Co, Cr, Mn, Ni, Pb, Zn and V). The results revealed that mean pH, wet and dry density and moisture content of the waste were 6.31, 1532 kg m(-30, 1879 kg m(-3) and 15.35%, respectively. Magnetite, SiO2, P2O5, CaO, Al2O3 and MgO were the main constituents of the waste with a weight percentage order of 68.88, 5.91, 3.39, 2.64, 2.59 and 1.76%, respectively. The toxicity characteristic leaching procedure test results for some heavy and other hazardous metals showed that mean elemental concentrations of Cd, Co, Cr, Mn, Ni, Pb, V and Zn in leachate were 0.06, 1.55, 5.49, 36.32, 209.10, 0.58, 314.06 and 24.84 mg L(-1), respectively. According to the Waste Management Act of Iran this waste should be classified as hazardous and should be disposed of in accordance with hazardous waste disposal regulations.

  18. Eliminating anti-nutritional plant food proteins: the case of seed protease inhibitors in pea.

    Science.gov (United States)

    Clemente, Alfonso; Arques, Maria C; Dalmais, Marion; Le Signor, Christine; Chinoy, Catherine; Olias, Raquel; Rayner, Tracey; Isaac, Peter G; Lawson, David M; Bendahmane, Abdelhafid; Domoney, Claire

    2015-01-01

    Several classes of seed proteins limit the utilisation of plant proteins in human and farm animal diets, while plant foods have much to offer to the sustainable intensification of food/feed production and to human health. Reduction or removal of these proteins could greatly enhance seed protein quality and various strategies have been used to try to achieve this with limited success. We investigated whether seed protease inhibitor mutations could be exploited to enhance seed quality, availing of induced mutant and natural Pisum germplasm collections to identify mutants, whilst acquiring an understanding of the impact of mutations on activity. A mutant (TILLING) resource developed in Pisum sativum L. (pea) and a large germplasm collection representing Pisum diversity were investigated as sources of mutations that reduce or abolish the activity of the major protease inhibitor (Bowman-Birk) class of seed protein. Of three missense mutations, predicted to affect activity of the mature trypsin / chymotrypsin inhibitor TI1 protein, a C77Y substitution in the mature mutant inhibitor abolished inhibitor activity, consistent with an absolute requirement for the disulphide bond C77-C92 for function in the native inhibitor. Two further classes of mutation (S85F, E109K) resulted in less dramatic changes to isoform or overall inhibitory activity. The alternative strategy to reduce anti-nutrients, by targeted screening of Pisum germplasm, successfully identified a single accession (Pisum elatius) as a double null mutant for the two closely linked genes encoding the TI1 and TI2 seed protease inhibitors. The P. elatius mutant has extremely low seed protease inhibitory activity and introgression of the mutation into cultivated germplasm has been achieved. The study provides new insights into structure-function relationships for protease inhibitors which impact on pea seed quality. The induced and natural germplasm variants identified provide immediate potential for either halving

  19. Ageing Mechanisms and Control. Specialists’ Meeting on Life Management Techniques for Ageing Air Vehicles (Les mecanismes vieillissants et le controle) (Reunions des specialistes des techniques de gestion du cycle de vie pour vehicules aeriens vieillissants)

    Science.gov (United States)

    2003-02-01

    développement et la mise en œuvre de technologies nouvelles/existantes, ainsi que de processus de gestion de la logistique , permettant l’établissement...technologies existantes et nouvelles, ainsi que des processus de gestion de la logistique . Ils seront alors plus à même de déterminer leurs priorités en

  20. Some Working Parameters and Energy Use in a Pistachio Nut Processing Plant: A Case Study

    Science.gov (United States)

    Polat, Refik; Erol Ak, Bekir; Acar, Izzet

    This study was performed with the objective to investigate the work process, work capacity, work effectiveness, energy consumption and labor force requirements of basic units such as washing, dehulling, sorting, separating, roasting and packing in a pistachio processing plant which has been mechanized in the last years. As a result of this study, the work capacity in washing, sorting, breaking, drying, separating units was found to be 1.5, 1.5, 2, 1, 1.6 t h-1, respectively. The work effectiveness in sorting and breaking units was found to be 95% and that of separating unit was 99%. The total energy consumption of the units was found to be 20.42 kW h-1 and the total labor force requirement was found to be five workers.

  1. Air quality measurements versus model predictions: a case study for the Sugozu power plant

    Energy Technology Data Exchange (ETDEWEB)

    A. Korur; C. Derinoz; C. Yurteri [ENVY Energy and Environmental Investments Inc., Ankara (Turkey)

    2003-07-01

    Air quality modeling is one of the tools used in Environmental Impact Assessment (EIA) studies in order to predict the potential impacts of atmospheric emissions. The main advantage of air quality modeling is the simulation of the ground-level concentrations under different conditions (i.e., meteorological variations and other pollutant sources in the vicinity). The accuracy of model predictions, on the other hand, depends mainly on the quality of the input data reflecting meteorological and topographical conditions as well as emission sources. In this regard, the model predictions should be supported with monitoring data. In the paper, the predictions of Gaussian air dispersion model (Industrial Source Complex - ISC) for SO{sub 2} and NO{sub 2} carried out in the vicinity of the Sugozu Power Plant on the coast of Turkey are compared with the air quality monitoring results of the same region. 2 refs., 3 figs., 2 tabs.

  2. Light as stress factor to plant roots - case of root halotropism.

    Science.gov (United States)

    Yokawa, Ken; Fasano, Rossella; Kagenishi, Tomoko; Baluška, František

    2014-01-01

    Despite growing underground, largely in darkness, roots emerge to be very sensitive to light. Recently, several important papers have been published which reveal that plant roots not only express all known light receptors but also that their growth, physiology and adaptive stress responses are light-sensitive. In Arabidopsis, illumination of roots speeds-up root growth via reactive oxygen species-mediated and F-actin dependent process. On the other hand, keeping Arabidopsis roots in darkness alters F-actin distribution, polar localization of PIN proteins as well as polar transport of auxin. Several signaling components activated by phytohormones are overlapping with light-related signaling cascade. We demonstrated that the sensitivity of roots to salinity is altered in the light-grown Arabidopsis roots. Particularly, light-exposed roots are less effective in their salt-avoidance behavior known as root halotropism. Here we discuss these new aspects of light-mediated root behavior from cellular, physiological and evolutionary perspectives.

  3. Land cover change and plants diversity in the Sahel: A case study from northern Burkina Faso

    Directory of Open Access Journals (Sweden)

    Abel Kadeba

    2015-04-01

    Full Text Available Understanding land cover degradation patterns and the effects of geomorphological units on phytodiversity is important for guiding management decisions and restoration strategies in the Sahelian vulnerables zones. This paper describes land cover degradation by combining Landsat TM image analysis and field data measurements in the Gourouol catchment of the Sahelian zone of Burkina Faso. Erdas Imagine 9.2 and Arc-GIS.10 were applied. The change patterns were obtained by superposing land cover maps for 1992 and 2010. The field data were collected by the mean of inventories according to the Braun-Blanquet phytosociological relevés methods. Plot sizes were 50 m x 20 m for woody species and 10 m x 10 m for herbaceous species. Six land cover types were identified and mapped: cultivated lands, bared lands, lowlands, which all spatially increased; and shrub-steppes, grasslands and water bodies, which all spatially decreased. The dynamic patterns based on the geomorphological units were non-degraded lowlands, stable sand dunes and degraded glacis. High plant diversity was found in lowlands, whereas low diversity occurred in glacis. A significant dissimilarity was observed between communities. The Shannon diversity indices in plant communities were approximately close to ln(species richness. The Pielou indices were close to 1, indicating a species fairly good distribution. Our results showed a variation of land cover over time and the effects of geomorphological units on phytodiversity. Furthermore, this variation helps oppose land degradation in the Sahel.

  4. ANFIS-based modelling for coagulant dosage in drinking water treatment plant: a case study.

    Science.gov (United States)

    Heddam, Salim; Bermad, Abdelmalek; Dechemi, Noureddine

    2012-04-01

    Coagulation is the most important stage in drinking water treatment processes for the maintenance of acceptable treated water quality and economic plant operation, which involves many complex physical and chemical phenomena. Moreover, coagulant dosing rate is non-linearly correlated to raw water characteristics such as turbidity, conductivity, pH, temperature, etc. As such, coagulation reaction is hard or even impossible to control satisfactorily by conventional methods. Traditionally, jar tests are used to determine the optimum coagulant dosage. However, this is expensive and time-consuming and does not enable responses to changes in raw water quality in real time. Modelling can be used to overcome these limitations. In this study, an Adaptive Neuro-Fuzzy Inference System (ANFIS) was used for modelling of coagulant dosage in drinking water treatment plant of Boudouaou, Algeria. Six on-line variables of raw water quality including turbidity, conductivity, temperature, dissolved oxygen, ultraviolet absorbance, and the pH of water, and alum dosage were used to build the coagulant dosage model. Two ANFIS-based Neuro-fuzzy systems are presented. The two Neuro-fuzzy systems are: (1) grid partition-based fuzzy inference system (FIS), named ANFIS-GRID, and (2) subtractive clustering based (FIS), named ANFIS-SUB. The low root mean square error and high correlation coefficient values were obtained with ANFIS-SUB method of a first-order Sugeno type inference. This study demonstrates that ANFIS-SUB outperforms ANFIS-GRID due to its simplicity in parameter selection and its fitness in the target problem.

  5. Finish line plant-insect interactions mediated by insect feeding mode and plant interference: a case study of Brassica interactions with diamondback moth and turnip aphid.

    Science.gov (United States)

    Soufbaf, Mahmoud; Fathipour, Yaghoub; Harvey, Jeffrey A; Hui, Cang

    2017-01-16

    There are gaps in our understanding of plant responses under different insect phytophagy modes and their subsequent effects on the insect herbivores' performance at late season. Here we compared different types of insect feeding by an aphid, Lipaphis erysimi, and a lepidopteran, Plutella xylostella, and how this affected defensive metabolites in leaves of 2 Brassica species when plants gain maturity. Thiocyanate concentrations after P. xylostella and L. erysimi feeding activities were the same. Total phenolics was higher after the phloem feeder feeding than the folivore activity. The plants compensatory responses (i.e., tolerance) to L. erysimi feeding was significantly higher than the responses to P. xylostella. This study showed that L. erysimi had higher carbon than P. xylostella whereas nitrogen in P. xylostella was 1.42 times that in L. erysimi. Population size of the phloem feeder was not affected by plant species or insect coexistence. However, there was no correlation between plant defensive metabolites and both insects' population size and biomass. This suggests that plant root biomass and tolerance index after different insect herbivory modes are not necessarily unidirectional. Importantly, the interaction between the folivore and the phloem feeder insects is asymmetric and the phloem feeder might be a trickier problem for plants than the folivore. Moreover, as both plants' common and special defenses decreased under interspecific interference, we suggest that specialist insect herbivores can be more challenged in ecosystems in which plants are not involved in interspecific interference. © 2017 Institute of Zoology, Chinese Academy of Sciences.

  6. La gestion des galères de Savoie. 1560-1637. Aspects administratifs et comptables

    Directory of Open Access Journals (Sweden)

    Michel Bottin

    2012-01-01

    Full Text Available Charles III duc de Savoie se retrouve après une série de défaites contre les Bernois et contre François I pratiquement dépouillé de ses Etats. A sa mort en 1553 il n’est plus maître que de Nice et de Verceil dans le nord du Piémont. L’Etat savoyard est sur le point de disparaître. La difficile succession revient à son fils Emmanuel Philibert. Le nouveau duc est alors lieutenant de Philippe II dans la guerre qu’il mène contre les Français. Le 10  août 1557 il gagne une bataille décisive à Saint-Quentin. La paix du Cateau-Cambrésis qui clôt cette guerre en 1559 permet à Emmanuel Philibert de recouvrer ses Etats. C’est avec une ambition nouvelle que le duc reprend le pouvoir. Il rêve de bâtir un Etat moderne et efficace pour servir une diplomatie ambitieuse. Celle-ci passe par une présence sur la scène méditerranéenne occidentale où se déroule depuis le début du siècle un conflit majeur entre les puissances chrétiennes et l’Empire ottoman. Les incidents sont permanents et chaque campagne annuelle se termine par une formidable bataille navale opposant  deux voire trois cents galères. Année après année les Turcs progressent. Le duc souhaite mettre son poids de puissance moyenne dans la balance et devenir ainsi un allié privilégié de l’Espagne. Pour cela il lui faut des galères et un port bien protégé pour les abriter. C’est-à-dire beaucoup d’argent. La rénovation fiscale qu’il entreprend et une bonne gestion des droits indirects permettront de faire cet effort. Le budget des galères occupe ainsi une place non négligeable dans les finances de l’Etat. Autant dire que le poste est surveillé. Préoccupation centrale du duc la gestion des galères doit être sans défaut.Les comptes des galères permettent de juger cette gestion pendant un demi siècle, sous Emmanuel Philibert d’abord puis sous le règne de son fils Charles Emmanuel I (1580-1630. La présente étude ne porte pas sur l

  7. Gestion de la douleur chronique par les infirmières des Groupes de médecine de famille

    Science.gov (United States)

    Bergeron, Dave A; Bourgault, Patricia; Gallagher, Frances

    2015-01-01

    INTRODUCTION : Des milliers de personnes souffrent actuellement de douleur chronique (DC) pour laquelle la prise en charge s’avère souvent inadéquate. Au Québec, les infirmières qui oeuvrent dans les Groupes de médecine de famille (GMF) jouent un rôle clé dans le suivi des personnes aux prises avec des problèmes de santé chroniques dont la DC. OBJECTIFS : Cette étude a pour objectifs de décrire les activités réalisées par les infirmières œuvrant en GMF en lien avec la gestion de la douleur chez la clientèle souffrant de DC, ainsi que les barrières à ces activités. MÉTHODE : Un dispositif descriptif corrélationnel transversal de type enquête postale a été utilisé. La population accessible à l’étude comprend les infirmières qui figurent sur la liste des membres de l’Ordre des infirmières et infirmiers du Québec travaillant en GMF. L’ensemble des infirmières figurant sur cette liste ayant consenti à être contactées à leur domicile pour des fins de recherche ont été contactées. Un questionnaire postal auto-administré (Pain Management Activities Questionnaire) a été complété par 53 infirmières travaillant en GMF. RÉSULTATS : Les trois activités le plus souvent réalisées par les infirmières sont d’établir une relation thérapeutique avec le client; de discuter avec le médecin de l’efficacité des mesures thérapeutiques et de faire un enseignement personnalisé au client. Les infirmières ont la perception qu’elles rencontrent en moyenne 2,68 personnes par semaine qui souffrent de DC. La méconnaissance des interventions possibles en douleur (71,7%) et la non-disponibilité de l’information sur la gestion de la douleur (52,8%) constituent les principales barrières selon les infirmières sondées. CONCLUSION : Les infirmières au sein des GMF font actuellement peu d’activités en gestion de la DC probablement en raison du manque de reconnaissance de la DC. PMID:25848847

  8. Air conditioning and energy conservation. Improved space HVAC systems. Case studies: Office buildings, hotels, shopping centers, skyscrapers, industrial plants

    Energy Technology Data Exchange (ETDEWEB)

    Heiner, H.

    1988-08-01

    Rising energy prices and an increasing demand for comfortable rooms account for the importance attached to the windows and glass used for office buildings, hotels and industrial plants. Both windows and glass have a considerable influence on the thermal behavior and air conditioning of buildings. Among the latest developments are precious metal-coated insulating panes. Selected gases allow to reduce the total thickness of insulating glass and improve noise insulation. The case studies presented refer to the energy-saving air conditioning and space heating, heat recovery and cooling of rooms as well as to the respective control systems. Investigations into the specific energy consumption of building shells reveal the considerable space/tap water heating energy conservation potentials remaining to be utilized.

  9. EVALUATION OF THE QUALITY OF DRINKING WATER PRODUCED BY THE TREATMENT PLANT: CASE OF MAURITANIA

    Directory of Open Access Journals (Sweden)

    MOHAMEDEN TFEILA

    2015-10-01

    Full Text Available This study aims to evaluate the performance of treatment plants after three years of operation of the city of Nouakchott. It essentially aims to study the evolution of various raw water qualities during the different processing steps (T °, pH, EC, MES, Cl-, NO3-, NO2-, sulfate.... The water treatment in Béni Nadji pretreatment station has led to a significant removal of turbidity, organic matter, and a 99-100 % elimination of SS (Suspended Solids. For drinking water, the total hardness varies between 3.8 and 5.6 °fH. The value of turbidity in drinking water was between 0.2 and 0.3 NTU with turbidity varying between 21 and 330 NTU in the surface water. Aluminum surface concentration surface was between 0.1 and 0.7 mg·L-1. The nitrate concentration varies between 0.5 and 2 mg·L-1, which is lower than that suggested by The World Health Organization (50 mg·L-1. As a result of this study, we concluded that water clarification phases of Nouakchott must be improved.

  10. Leachate Monitoring In The Extractive Industry: A Case Study Of Nigerian Liquified Natural Gas Plant.

    Directory of Open Access Journals (Sweden)

    Uneke Louis Agwu

    2015-11-01

    Full Text Available Activities of extractive industry (NLNG is typical introduces some chemical substances into the groundwater. These change the groundwater signature and bioaccumulation of some of these classified as hazardous may result in various wealth challenges. Seven areas within the plant where identified by NLNG Six as high risk pollution areas and one (Nature Park as no pollution risk area. Groundwater samples were collected from all seven areas and analyzed for the presence of Cu, Cr, Zn, nitrate, phosphate and PH. Samples from the no pollution risk area served as control. Results were compared with WHO limits. Except for Cr content which was stable, other results showed fluctuations with time, albeit on the increase, though all remained within WHO limits. Nitrate value is fast approaching limit and requires urgent attention. Unexpected high values of the measured parameters were observed at Nature Park (no pollution risk area even beyond the high risk pollution areas. This precludes NLNG activities being responsible. The necessity of pre-activity groundwater quality assessment is thus established. Close monitoring of groundwater quality of the extractive industry zones is vital for the protection of source quality.

  11. Drought tolerance in wild plant populations: the case of common beans (Phaseolus vulgaris L.).

    Science.gov (United States)

    Cortés, Andrés J; Monserrate, Fredy A; Ramírez-Villegas, Julián; Madriñán, Santiago; Blair, Matthew W

    2013-01-01

    Reliable estimations of drought tolerance in wild plant populations have proved to be challenging and more accessible alternatives are desirable. With that in mind, an ecological diversity study was conducted based on the geographical origin of 104 wild common bean accessions to estimate drought tolerance in their natural habitats. Our wild population sample covered a range of mesic to very dry habitats from Mexico to Argentina. Two potential evapotranspiration models that considered the effects of temperature and radiation were coupled with the precipitation regimes of the last fifty years for each collection site based on geographical information system analysis. We found that wild accessions were distributed among different precipitation regimes following a latitudinal gradient and that habitat ecological diversity of the collection sites was associated with natural sub-populations. We also detected a broader geographic distribution of wild beans across ecologies compared to cultivated common beans in a reference collection of 297 cultivars. Habitat drought stress index based on the Thornthwaite potential evapotranspiration model was equivalent to the Hamon estimator. Both ecological drought stress indexes would be useful together with population structure for the genealogical analysis of gene families in common bean, for genome-wide genetic-environmental associations, and for postulating the evolutionary history and diversification processes that have occurred for the species. Finally, we propose that wild common bean should be taken into account to exploit variation for drought tolerance in cultivated common bean which is generally considered susceptible as a crop to drought stress.

  12. Drought tolerance in wild plant populations: the case of common beans (Phaseolus vulgaris L..

    Directory of Open Access Journals (Sweden)

    Andrés J Cortés

    Full Text Available Reliable estimations of drought tolerance in wild plant populations have proved to be challenging and more accessible alternatives are desirable. With that in mind, an ecological diversity study was conducted based on the geographical origin of 104 wild common bean accessions to estimate drought tolerance in their natural habitats. Our wild population sample covered a range of mesic to very dry habitats from Mexico to Argentina. Two potential evapotranspiration models that considered the effects of temperature and radiation were coupled with the precipitation regimes of the last fifty years for each collection site based on geographical information system analysis. We found that wild accessions were distributed among different precipitation regimes following a latitudinal gradient and that habitat ecological diversity of the collection sites was associated with natural sub-populations. We also detected a broader geographic distribution of wild beans across ecologies compared to cultivated common beans in a reference collection of 297 cultivars. Habitat drought stress index based on the Thornthwaite potential evapotranspiration model was equivalent to the Hamon estimator. Both ecological drought stress indexes would be useful together with population structure for the genealogical analysis of gene families in common bean, for genome-wide genetic-environmental associations, and for postulating the evolutionary history and diversification processes that have occurred for the species. Finally, we propose that wild common bean should be taken into account to exploit variation for drought tolerance in cultivated common bean which is generally considered susceptible as a crop to drought stress.

  13. Technoeconomic evaluation of urban plant factories: The case of basil (Ocimum basilicum).

    Science.gov (United States)

    Liaros, Stelios; Botsis, Konstantinos; Xydis, George

    2016-06-01

    Greece is currently in a turmoil, experiencing the effects of more than half a decade of economic crisis. Public health and welfare, jobs and wages, labor market concerning employment as long as employability of the work force, inequality, life satisfaction and housing, tourism and environment, economic and energy poverty are heavily impacted by Greece's disadvantageous economic situation. Real estate market could not have gotten away from the financial commotion, being currently in a halt after years of rapid decline. Fired from the present situation of Greece's real estate market, the present study is concerned with the investigation of alternative ways to support the local real estate market. With respect to sustainable development's ethics, the development, implementation, installation and operation of small, inexpensive plant factories within the urban environment is evaluated. Installations such are those, will encourage the penetration of a new market for the untapped buildings' resource, advancing new investing opportunities, promoting economic growth and productivity while creating a new labor market. The study will rely on the basic principles of Life Cycle Costing Assessment and develop a methodology upon which different scenarios will be evaluated against the "Do Nothing" scenario. Copyright © 2016 Elsevier B.V. All rights reserved.

  14. Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study

    Science.gov (United States)

    Rajendram, William

    2016-01-01

    The aim of this study was to assess the effects of the codigestion of food manufacturing and processing wastes (FW) with sewage sludge (SS), that is, municipal wastewater treatment plant primary sludge and waste activated sludge. Bench scale mesophilic anaerobic reactors were fed intermittently with varying ratio of SS and FW and operated at a hydraulic retention time of 20 days and organic loading of 2.0 kg TS/m3·d. The specific biogas production (SBP) increased by 25% to 50% with the addition of 1%–5% FW to SS which is significantly higher than the SBP from SS of 284 ± 9.7 mLN/g VS added. Although the TS, VS, and tCOD removal slightly increased, the biogas yield and methane content improved significantly and no inhibitory effects were observed as indicated by the stable pH throughout the experiment. Metal screening of the digestate suggested the biosolids meet the guidelines for use as a soil conditioner. Batch biochemical methane potential tests at different ratios of SS : FW were used to determine the optimum ratio using surface model analysis. The results showed that up to 47-48% FW can be codigested with SS. Overall these results confirm that codigestion has great potential in improving the methane yield of SS. PMID:27689091

  15. Environment Quality: Impact From Traffic, Power Plant and Land Morphology, a Case Study of Prishtina

    Directory of Open Access Journals (Sweden)

    Bajcinovci Bujar

    2017-05-01

    Full Text Available Environmental air pollution is a global health concern, a complex phenomenon which is directly reflected on public health, economic and human development. Environmental air pollution has been drastically multiplied, followed by the beginning of the new Millennia in Prishtina, the capital city of the Kosovo. The new millennium began as a crucial activity for the city of Prishtina in terms of demographic, human geography, social and economic phenomena. The presented study aims to determine prevalent traffic and land morphology composition attributes, which have influenced and continue to have environmental impact in the city of Prishtina. According to the conceptual findings from the empirical observations, the heavy city traffic and the land morphology structure, determine the urban air pollution level. Prishtina is generally polluted due to its geomorphic position in relation to the power plants Kosovo A, and Kosova B. The impact of the above cited factors, is even bigger when the dominant winds prevail through valley, which encompasses the city. The findings from this paper propose the necessity of careful driven urban solutions.

  16. Environment Quality: Impact From Traffic, Power Plant and Land Morphology, a Case Study of Prishtina

    Science.gov (United States)

    Bajcinovci, Bujar

    2017-05-01

    Environmental air pollution is a global health concern, a complex phenomenon which is directly reflected on public health, economic and human development. Environmental air pollution has been drastically multiplied, followed by the beginning of the new Millennia in Prishtina, the capital city of the Kosovo. The new millennium began as a crucial activity for the city of Prishtina in terms of demographic, human geography, social and economic phenomena. The presented study aims to determine prevalent traffic and land morphology composition attributes, which have influenced and continue to have environmental impact in the city of Prishtina. According to the conceptual findings from the empirical observations, the heavy city traffic and the land morphology structure, determine the urban air pollution level. Prishtina is generally polluted due to its geomorphic position in relation to the power plants Kosovo A, and Kosova B. The impact of the above cited factors, is even bigger when the dominant winds prevail through valley, which encompasses the city. The findings from this paper propose the necessity of careful driven urban solutions.

  17. Information system design of inventory control spare parts maintenance (valuation class 5000) (case study: plant kw)

    Science.gov (United States)

    Fitriana, Rina; Moengin, Parwadi; Riana, Mega

    2016-02-01

    Plat KW hadn't using optimal inventory level planning yet and hadn't have an information system that well computerized. The research objective is to be able to design an information system related inventory control of spare parts maintenance. The study focused on five types of spare parts with the highest application rate during February 2013- March 2015 and included in the classification of fast on FSN analysis Grinding stones Cut 4". Cable Tie 15". Welding RB 26-32MM. Ring Plat ½" and Ring Plate 5/8 ". Inventory calculation used Economic Order Quantity (EOQ). Safety Stock (SS) and Reorder Point (ROP) methods. System analysis conducted using the framework PIECES with the proposed inventory control system. the performance of the plant KW relating to the supply of spare parts maintenance needs can be more efficient as well as problems at the company can be answered and can perform inventory cost savings amounting Rp.267.066. A computerized information system of inventory control spare parts maintenance provides a menu that can be accessed by each departments as the user needed.

  18. Recombinant production of plant lectins in microbial systems for biomedical application – the frutalin case study

    Directory of Open Access Journals (Sweden)

    Carla eOliveira

    2014-08-01

    Full Text Available Frutalin is a homotetrameric partly-glycosylated alpha-D-galactose-binding lectin of biomedical interest from Artocarpus incisa (breadfruit seeds, belonging to the jacalin-related lectins family. As other plant lectins, frutalin is a heterogeneous mixture of several isoforms possibly with distinct biological activities. The main problem of using such lectins as biomedical tools is that batch-to-batch variation in isoforms content may lead to inconstant results. The production of lectins by recombinant means has the advantage of obtaining high amounts of proteins with defined amino-acid sequences and more precise properties. In this mini review, we provide the strategies followed to produce two different forms of frutalin in two different microbial systems: Escherichia coli and Pichia pastoris. The processing and functional properties of the recombinant frutalin obtained from these hosts are compared to those of frutalin extracted from breadfruit. Emphasis is given particularly to recombinant frutalin produced in P. pastoris, which showed a remarkable capacity as biomarker of human prostate cancer and as apoptosis-inducer of cancer cells. Recombinant frutalin production opens perspectives for its development as a new tool in human medicine.

  19. Ergonomic design of crane cabins: a case study from a steel plant in India.

    Science.gov (United States)

    Ray, Pradip Kumar; Tewari, V K

    2012-01-01

    The study, carried out at the Batch Annealing Furnace (BAF) shop of Cold Rolling Mill (CRM) at an integrated steel plant of India, concerns ergonomic evaluation and redesign of a manually-operated Electrical Overhead Travelling (EOT) crane cabin. The crane cabin is a complex worksystem consisting of the crane operator and twelve specific machine components embedded in a closed workspace. A crane operator has to perform various activities, such as loading and unloading of coils, setting and removal of convector plates, and routine maintenance work. Initially, an operator had to work in standing posture with bent back most of the time. Ergonomically poor design of the chair and the controls, awkward work postures, and insufficient vision angle resulting in musculoskeletal disorders (MSDs) are some of the critical problems observed.. The study, conceived as an industry-academia joint initiative, was undertaken by a design team, the members of which were drawn from both the company concerned and the institute. With the project executed successfully, a number of lessons, such as how to minimize the anthropometric mismatch, how to improve the layout of the components and controls within enclosed workspace, and how to improve work posture minimizing risk of MSDs have been learned.

  20. Two proposals for pumping calculations of non–newtonian fluids, water treatment plants disposal sludges case

    Directory of Open Access Journals (Sweden)

    H. Gardea–Villegas

    2008-04-01

    Full Text Available This paper presents two ways to calculate the pumping power of non Newtonian fluids and especially yield pseudoplastics which are the kind of disposal fluids from Water Treatment Plants. Fluids called sludges. The proposals included here, are based in methods suggested by Levenspiel (1986 applicable to determine the performance of Bingham plastics and pseudoplastic fluids using a graphical approximation of the rheological behavior of these materials. This approach has the advantage that is appropriate to any kind of regime. Otherwise, Levenspiel underlines, that there is not yet a chart who relates the roughness coefficient with the Reynolds number for general plastics, so it is not possible by now to calculate the yield pseudoplastic fluid. Its calculation is the aim of this study. Levenspiel proposes an approach subject to the assessment of the project manager, and will therefore entail personal observations, with the limitations that this can cause. The results obtained by both propositions, are very similar. This is part of a doctorate study done by the author under the direction of Dr. Rafael B. Carmona in the Faculty of Engineering of the National Autonomous University of Mexico.

  1. Analysis of dispersion of heated effluent from power plant: a case study

    Indian Academy of Sciences (India)

    VIKRAM SHAH; ANKIT DEKHATWALA; JYOTIRMAY BANERJEE; A K PATRA

    2017-04-01

    Thermal dispersion of heated effluent in a lake near nuclear power plant is analysed. Lake Bathymetry is established by data collection at a pre-planned matrix of sample points in the lake. Threedimensional geometric model of the lake is developed based on the geometric data collected, using a high accuracy GPS and a dead weight based depth meter at respective sample points of the lake matrix. A turbine type digital flow meter is used to measure the velocities at the intake and blow down points of the lake. Numerical analysis of flow and thermal dispersion is carried out using PLIC-VOF two-phase model with the two-equationk-epsilon model for turbulence closure. Numerical results for varying flow and blow down temperature conditions and wind speed are studied. It is observed that the thermal gradients are steeper in the curved area near the blowdown point. Small increase in main inlet (inlet II) velocity suppresses the dispersion of high-temperature contours significantly. Thermal discharge and dispersed temperature is monitored using temperature sensor mounted floating buoy at various locations in the lake. It is established that the thermal dispersion is influenced by wind velocity and the presence of water hyacinth in the lake.

  2. Decommissioning a phosphoric acid production plant: a radiological protection case study.

    Science.gov (United States)

    Stamatis, V; Seferlis, S; Kamenopoulou, V; Potiriadis, C; Koukouliou, V; Kehagia, K; Dagli, C; Georgiadis, S; Camarinopoulos, L

    2010-12-01

    During a preliminary survey at the area of an abandoned fertilizer plant, increased levels of radioactivity were measured at places, buildings, constructions and materials. The extent of the contamination was determined and the affected areas were characterized as controlled areas. After the quantitative and qualitative determination of the contaminated materials, the decontamination was planned and performed step by step: the contaminated materials were categorized according to their physical characteristics (scrap metals, plastic pipes, scales and residues, building materials, etc) and according to their level of radioactivity. Depending on the material type, different decontamination and disposal options were proposed; the most appropriate technique was chosen taking into account apart from technical issues, the legal framework, radiation protection issues, the opinion of the local authorities involved as well as the owner's wish. After taking away the biggest amount of the contaminated materials, an iterative process consisting of surveys and decontamination actions was performed in order to remove the residual traces of contamination from the area. During the final survey, no residual surface contamination was detected; some sparsely distributed low level contaminated materials deeply immersed into the soil were found and removed.

  3. The cultural significance of plants of the Pernambuco indians: The Xucuru case

    Directory of Open Access Journals (Sweden)

    Laise de Holanda Cavalcanti Andrade

    2004-05-01

    Full Text Available The Index of Cultural Significance (ICS created at the end of the 1980´s, aims to register the value of each vegetable species and to disclose its importance for the biological and cultural survival of a traditional community. Initially, the ISC was considered and applied in aboriginal communities in Canada and the United States. Aiming to verify its applicability for Brazilian aboriginal groups, it was used in the present work to evaluate the cultural meaning of the useful species for the Xucuru tribe, in pesqueira county, Pernambuco. In Brazil, it is the first time that this index has been used with a northeastern aboriginal community, the Xucuru, one of the seven tribes remaining in Pernambuco. From informal interviews, 97 useful species were registered among trees, shrubs and grass growing in the Pedra D’Água forest (Humid Ororobá-Forest, in yards, and in small cultivated areas in the village. The ISC provided a numeric order of importance for the plants registered in the Xucuru tribe, much like the one observed in the field. Musa paradisiaca was the species of greatest meaning for the community (ICS 120, followed by Rosmarinum officinalis (ICS 92, Xerophyta plicata (ICS 88, Aspidosperma sp. (ICS 84 and Cymbopogon citratus (ISC 80. The place of distinct prominence for non-native species of the area (exotic evidences the importance that such species have acquired in the Xucuru culture.

  4. Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study

    Directory of Open Access Journals (Sweden)

    Zubayeda Zahan

    2016-01-01

    Full Text Available The aim of this study was to assess the effects of the codigestion of food manufacturing and processing wastes (FW with sewage sludge (SS, that is, municipal wastewater treatment plant primary sludge and waste activated sludge. Bench scale mesophilic anaerobic reactors were fed intermittently with varying ratio of SS and FW and operated at a hydraulic retention time of 20 days and organic loading of 2.0 kg TS/m3·d. The specific biogas production (SBP increased by 25% to 50% with the addition of 1%–5% FW to SS which is significantly higher than the SBP from SS of 284±9.7 mLN/g VS added. Although the TS, VS, and tCOD removal slightly increased, the biogas yield and methane content improved significantly and no inhibitory effects were observed as indicated by the stable pH throughout the experiment. Metal screening of the digestate suggested the biosolids meet the guidelines for use as a soil conditioner. Batch biochemical methane potential tests at different ratios of SS : FW were used to determine the optimum ratio using surface model analysis. The results showed that up to 47-48% FW can be codigested with SS. Overall these results confirm that codigestion has great potential in improving the methane yield of SS.

  5. Application of scanning microdensitometer data in selected plant science case studies

    Science.gov (United States)

    Lillesand, T. M.; Meisner, D. E.

    1981-01-01

    This paper treats a representative sample of projects aimed at vegetation mapping and assessment via analysis of both digital photographic and Landsat data projects and illustrates the potential for using scanning microdensitometric data extracted from color infrared photographs in the following applications: freshwater wetlands mapping, tree type mapping, and yield vs. reflectance modeling in corn fertilization experiments. These case studies are presented to illustrate the general applicability of scanning microdensitometer data in the contexts of image classification and enhancement as well as quantitative modeling of ground parameters.

  6. Investigation of Sulfate concentration influence on Anaerobic Lagoon performance: Birjand Wastewater Treatment plant: A Case study

    Directory of Open Access Journals (Sweden)

    Mohammad Malakootian

    2016-05-01

    Full Text Available Background and Aim: In the present study the influence of the different sulfate concentration on the anaerobic lagoon stabilization was investigated. Materials and Methods: The present study is an experimental research carried out on anaerobic stabilization pond pilot for 7 months in Birjand wastewater treatment plant. After making sure of a steady state sulfate with different concentrations of 200, 300 and 400 mg/L were injected into the pilot. Then parameters including pH, organic nitrogen, ammonia nitrogen, BOD5, COD and nitrate were measured. All of the experiments were carried out according to the methods presented in the book "Standard Method" for the examination of water and wastewater (2005. Results: It was found that by increasing sulfate concentration from 200 to 300 mg/L all of parameters  except BOD5 (10% reduction had no significant changes., but by increasing the sulfate concentration from 200 to 400 mg/L the removal efficiency of the parameters such as BOD5, COD, Organic nitrogen, total kjeldahl nitrogen, nitrate and sulfate reduced to 11, 8, 12, 26, 6 and 10 percent, respectively. PH in the first stage was alkaline and then changed to acidic. Conclusion: Anaerobic stabilization ponds have different capacities for removal of organic compounds at different sulfate concentrations; so that; in sulfate concentration of 200 mg/L, the proper operation was seen and in concentration of 300 mg/L, sulfate-reducing bacteria get dominant and therefore odor is produced..  Alternatively, by increasing the concentration of sulphate to 400 mg/L, ammonia nitrogen increased 2.5 times (150% in the effluent.

  7. Plants ecotoxicology. A case of low doses and multi pollutant exposure

    Energy Technology Data Exchange (ETDEWEB)

    Geras' Kin, S.; Kim, J.; Evseeva, T.; Oudalova, A.; Dikarev, V. [Russian Institute of Agricultural Radiology and Agroecology, Obninsk (Russian Federation)

    2004-07-01

    In this report, results of long-term laboratory, 'green-house' and field experiments carried out on different species of wild and agricultural plants (spring barley, Scots pine, spider wort, bulb onion and others) to study toxic and genotoxic effects of low doses and concentrations of such common pollutants as acute and chronic {gamma}-radiation, heavy natural radionuclides, compounds of heavy and alkaline earth metals, pesticides are presented for the first time. Special attention is paid to eco-toxic effects of chronic low dose exposures, the dose-rate effect, synergistic and antagonistic effects of different factors' combined exposures and biological effects of incorporated radionuclides. The results of long-term field experiments in the 30-km Chernobyl NPP zone, in the vicinity of the facility for the processing and storage of radioactive wastes (Leningrad region), in the vicinity of the radium production industry storage cell (Komi Republic), at the site of an underground nuclear explosion (Perm region) are discussed. These findings suggest that the further evolution of investigations in this field would issue in the development of a theoretical bases and practical procedures for environmental protection against radioactivity, taking into account the new experimentally confirmed facts about the presence of such essentially important singularities of the biological effect of low ionizing radiation doses as the nonlinearity of a dose-effect relationship, radiation-induced genomic instability, phenomenon of radio-adaptation, increased probability of synergetic and antagonistic effects of the combined action of different nature factors. A development of a new concept of radiation protection for a human and biota should be based on the clear understanding of these effects and their contribution to the response of biological objects. (author)

  8. A volatolomic approach for studying plant variability: the case of selected Helichrysum species (Asteraceae).

    Science.gov (United States)

    Giuliani, Claudia; Lazzaro, Lorenzo; Calamassi, Roberto; Calamai, Luca; Romoli, Riccardo; Fico, Gelsomina; Foggi, Bruno; Mariotti Lippi, Marta

    2016-10-01

    The species of Helichrysum sect. Stoechadina (Asteraceae) are well-known for their secondary metabolite content and the characteristic aromatic bouquets. In the wild, populations exhibit a wide phenotypic plasticity which makes critical the circumscription of species and infraspecific ranks. Previous investigations on Helichrysum italicum complex focused on a possible phytochemical typification based on hydrodistilled essential oils. Aims of this paper are three-fold: (i) characterizing the volatile profiles of different populations, testing (ii) how these profiles vary across populations and (iii) how the phytochemical diversity may contribute in solving taxonomic problems. Nine selected Helichrysum populations, included within the H. italicum complex, Helichrysum litoreum and Helichrysum stoechas, were investigated. H. stoechas was chosen as outgroup for validating the method. After collection in the wild, plants were cultivated in standard growing conditions for over one year. Annual leafy shoots were screened in the post-blooming period for the emissions of volatile organic compounds (VOCs) by means of headspace solid phase microextraction coupled with gas-chromatography and mass spectrometry (HS-SPME-GC/MS). The VOC composition analysis revealed the production of overall 386 different compounds, with terpenes being the most represented compound class. Statistical data processing allowed the identification of the indicator compounds that differentiate the single populations, revealing the influence of the geographical provenance area in determining the volatile profiles. These results suggested the potential use of VOCs as valuable diacritical characters in discriminating the Helichrysum populations. In addition, the cross-validation analysis hinted the potentiality of this volatolomic study in the discrimination of the Helichrysum species and subspecies, highlighting a general congruence with the current taxonomic treatment of the genus. The consistency

  9. The influence of habitat on the evolution of plants: a case study across Saxifragales.

    Science.gov (United States)

    de Casas, Rafael Rubio; Mort, Mark E; Soltis, Douglas E

    2016-12-01

    Organismal evolution tends to be closely associated with ecological conditions. However, the extent to which this association constrains adaptation or diversification into new habitats remains unclear. We studied habitat evolution in the hyper-diverse angiosperm clade Saxifragales. We used species-level phylogenies for approx. 950 species to analyse the evolution of habitat shifts as well as their influence on plant diversification. We combined habitat characterization based on floristic assignments and state-of-the art phylogenetic comparative methods to estimate within- and across-habitat diversification patterns. Our analyses showed that Saxifragales diversified into multiple habitats from a forest-inhabiting ancestor and that this diversification is governed by relatively rare habitat shifts. Lineages are likely to stay within inferred ancestral ecological conditions. Adaptation to some habitat types (e.g. aquatic, desert) may be canalizing events that lineages do not escape. Although associations between increased diversification rates and shifts in habitat preferences are occasionally observed, extreme macroevolutionary rates are closely associated with specific habitats. Lineages occurring in shrubland, and especially tundra and rock cliffs, exhibit comparatively high diversification, whereas forest, grassland, desert and aquatic habitats are associated with low diversification. The likelihood of occupation of new habitats appears to be asymmetric. Shifts to aquatic and desert habitats may be canalizing events. Other habitats, such as tundra, might act as evolutionary sources, while forests provide the only habitat seemingly colonized easily by lineages originating elsewhere. However, habitat shifts are very rare, and any major environmental alteration is expected to have dramatic evolutionary consequences. © The Author 2016. Published by Oxford University Press on behalf of the Annals of Botany Company.

  10. Altered stream-flow regimes and invasive plant species: The Tamarix case

    Science.gov (United States)

    Stromberg, J.C.; Lite, S.J.; Marler, R.; Paradzick, C.; Shafroth, P.B.; Shorrock, D.; White, J.M.; White, M.S.

    2007-01-01

    Aim: To test the hypothesis that anthropogenic alteration of stream-flow regimes is a key driver of compositional shifts from native to introduced riparian plant species. Location: The arid south-western United States; 24 river reaches in the Gila and Lower Colorado drainage basins of Arizona. Methods: We compared the abundance of three dominant woody riparian taxa (native Populus fremontii and Salix gooddingii, and introduced Tamarix) between river reaches that varied in stream-flow permanence (perennial vs. intermittent), presence or absence of an upstream flow-regulating dam, and presence or absence of municipal effluent as a stream water source. Results: Populus and Salix were the dominant pioneer trees along the reaches with perennial flow and a natural flood regime. In contrast, Tamarix had high abundance (patch area and basal area) along reaches with intermittent stream flows (caused by natural and cultural factors), as well as those with dam-regulated flows. Main conclusions: Stream-flow regimes are strong determinants of riparian vegetation structure, and hydrological alterations can drive dominance shifts to introduced species that have an adaptive suite of traits. Deep alluvial groundwater on intermittent rivers favours the deep-rooted, stress-adapted Tamarix over the shallower-rooted and more competitive Populus and Salix. On flow-regulated rivers, shifts in flood timing favour the reproductively opportunistic Tamarix over Populus and Salix, both of which have narrow germination windows. The prevailing hydrological conditions thus favour a new dominant pioneer species in the riparian corridors of the American Southwest. These results reaffirm the importance of reinstating stream-flow regimes (inclusive of groundwater flows) for re-establishing the native pioneer trees as the dominant forest type. ?? 2007 The Authors Journal compilation ?? 2007 Blackwell Publishing Ltd.

  11. Considerations on Legal and Philosophical Problems in Experimental Botany: The case of plant in vitro cultures

    Directory of Open Access Journals (Sweden)

    Iwona Kleszcz

    2015-09-01

    Full Text Available The present paper consists of two parts. In the first, some issues related to the character of biological experiments conducted under in vitro cultures are portrayed. The relevant aspects of these procedures are explicated from the viewpoint of the experimental botanist. It is a case study for the considerations in the second part, which presents selected philosophical and legal issues involved in biological experiments from the general perspective of philosophical investigations concerning the problem of plants’ axiology. Obviously, the nature of the considerations is limited; not all important questions from the perspective of biology and philosophy have been raised. Nevertheless, the authors hope that the analyzed issues may be interesting for both biologists and philosophers.

  12. Évolution et rôle de la cartographie dans la gestion des zones inondables en France

    Directory of Open Access Journals (Sweden)

    Gérald GARRY

    1994-12-01

    Full Text Available Les Plans d’Exposition aux Risques (PER commencés en 1984 ont été à l’origine d’une véritable réflexion en matière de prévention des risques naturels, qui s’est caractérisée par la mise au point d’une méthodologie des études, notamment dans le domaine des inondations, et par l’élaboration de cartes dont les applications se sont progressivement étendues et complétées au regard de la planification, de l’information préventive et de la gestion de crise.

  13. L’Internet des objets au service de la gestion énergétique des bâtiments

    OpenAIRE

    Bocchi, Yann; Nanchen, Benjamin; Olivieri, Alex Carmine; Genoud, Dominique; Dedieu, Hervé; Ziegler, Sébastien; Rey, Jean-Philippe; Rizzo, Gianluca; Dufour, Luc

    2014-01-01

    Tout en renforçant la nécessité du passage au protocole IPv6, la prolifération des objets communicants et connectés offre de multiples avantages, notamment pour la gestion énergétique des bâtiments. Néanmoins, l’interopérabilité des différents dispositifs, tels que les smartphones, les ampoules, les volets ou les panneaux solaires, requiert de nombreux développements. Dédié à l’exploration des possibilités offertes par IPv6 pour étendre l’Internet des objets, le projet IoT6 a déjà rendu possi...

  14. Gérer les bonnes pratiques des entreprises : Entre gestion des connaissances et veille stratégique

    OpenAIRE

    Stanel, Sorin

    2004-01-01

    Jury : Arnaud JULES, Diocèse de Paris Olivia VERGER, IMS-Entreprendre pour la Cité; Retour d'expérience sur une démarche prospective et expérimentale globale (avec le développement des dimensions organisationnelles, techniques et humaines), menée au sein de l'organisation IMS-Entreprendre pour la Cité. Ce mémoire porte sur la mise en œuvre de stratégies de veille et de gestion des connaissances dans une structure de type réseau, sujette aux avantages et aux contraintes du monde de l'entrepris...

  15. Gestion territorial et valorisation du patrimoine: Vers un développement régional durable

    Directory of Open Access Journals (Sweden)

    Guillaume Marceau

    2015-03-01

    Full Text Available Cet article traite de la valorisation du patrimoine des communes de France dans une perspective de gestion territoriale et de rééquilibrage des économies régionales. Nous nous attachons notamment à montrer dans quelle mesure une allocation même modérée de moyens à la mise en valeur de différentes formes de patrimoine occasionne des retombées économiques plus que proportionnelles aux efforts consentis. Ce phénomène étant vraisemblablement accentué par l’importance du secteur touristique dans l’économie nationale, nous proposons des politiques concrètes de valorisation du patrimoine à des fins touristiques et plus particulièrement en nous intéressant à ce que le code de l’urbanisme appelle le “petit patrimoine”.

  16. [Breve commento sull'importanza spesso sottovalutata degli approcci psicologici e riabilitativi nella gestione del dolore oncologico].

    Science.gov (United States)

    Cascella, Marco; Thompson, Nicholas Simonds; Muzio, Maria Rosaria; Forte, Cira Antonietta; Cuomo, Arturo

    2016-08-01

    Riassunto. L'approccio farmacologico personalizzato (tailored) rappresenta la terapia standard per i pazienti affetti da dolore oncologico, consentendo il controllo della sintomatologia in circa il 90% dei casi. Qualora tale strategia risulti inefficace è possibile ricorrere a più complesse tecniche, invasive o mini-invasive. Tuttavia, sia da parte dei pazienti sia degli operatori viene sottostimato il disagio psicologico sotteso al dolore oncologico e non si considerano i potenziali benefici dei trattamenti di supporto psicologico e riabilitativi nella gestione del dolore da cancro. Queste strategie non farmacologiche dovrebbero essere parte integrante di un più globale approccio multidisciplinare alla terapia del dolore, affiancando e amplificando gli effetti della terapia farmacologica. Tale breve rassegna narrativa ha la finalità di offrire una panoramica sul ruolo dei possibili interventi psicologici e riabilitativi atti al miglioramento della qualità della vita in pazienti affetti da dolore oncologico.

  17. Simulation temps réel pour la gestion des flux énergétiques dans l'habitat

    OpenAIRE

    Missaoui, Rim; Warkozek, Ghaith; Abras, Shadi; Ploix, Stéphane; Bacha, Seddik

    2010-01-01

    National audience; Le secteur de bâtiment représente 43% de la consommation totale du pays en énergie primaire. Pour cette raison, le bâtiment est considéré comme un énorme gisement potentiel d'économies d'énergie, d'où l'existence de nombreux travaux de recherche sur ce thème. Parmi ces derniers travaux, le projet ANR Multisol a proposé une solution pour la gestion des flux énergétique dans le bâtiment en gérant les équipements du système bâtiment. Or, pour valider des algorithmes de pilotag...

  18. Swiss Foundation Code 2009 avec commentaire : principes et recommandations pour la constitution et la gestion de fondations donatrices

    CERN Document Server

    Sprecher, Thomas; Janssen, Martin

    2009-01-01

    Le «Swiss Foundation Code 2009» reprend et complète le premier Code européen de bonne gouvernance pour les fondations donatrices publié en 2005. Il contient des directives de gouvernance orientées vers la pratique. Elles ont trait aussi bien à la constitution, à l’organisation, à la gestion et à la surveillance ou à l’activité de soutien qu’à la politique financière et d’investissement de fondations à but non lucratif. Pour la première fois, les principes définis par le Code font l’objet d’un commentaire détaillé.

  19. Gestion documentaire des dossiers mixtes : méthodes et outils dans une approche-métier

    OpenAIRE

    Monfort, Alice

    2015-01-01

    Comment gérer de façon efficiente les dossiers mixtes où coexistent des documents physiques et des documents électroniques ? Après avoir exploré la notion de dossier dans les environnements physique et électronique, ce mémoire tente d'identifier des solutions de gestion documentaire permettant de répondre aux spécificités des dossiers dont les supports sont hétérogènes en s'appuyant sur une approche-métier à travers l'étude du dossier individuel de salarié et du dossier relatif à l'immeuble....

  20. L’integrazione tra DbT e catasto: un nuovo strato informativo per la gestione del territorio tramite GIS

    Directory of Open Access Journals (Sweden)

    Franco Guzzetti

    2013-02-01

    Full Text Available L’ampliamento dei tematismi del DbT attraverso l’acquisizione dei dati catastali e l’armonizzazione tra i due strumenti cartografici costituisce un importante passo verso la realizzazione di SIT di tipo gestionale: i nuovi contenuti informativi acquisiti al DbT vanno però strutturati in base agli usi che sono destinati a supportare. La gestione dei diritti edificatori derivanti da perequazione urbanistica ne costituisce un esempio.Widening the range of contents forming the Topographical Database through the integration with the Land Registry geometries and data is an important step toward the realization of a management GIS: new information acquired by the Topographical Database need to be structured depending on the applications they are going to support. Administration through GIS technology of development right trade, arising from urban equalization mechanisms, constitutesa good example for the automation of processes and procedures related to the territory.

  1. Indigenous knowledge for plant species diversity: a case study of wild plants' folk names used by the Mongolians in Ejina desert area, Inner Mongolia, P. R. China

    Directory of Open Access Journals (Sweden)

    Soyolt

    2008-01-01

    Full Text Available Abstract Folk names of plants are the roots of traditional plant biodiversity knowledge. This paper mainly records and analyses the wild plant folk names of the Mongolians in the Ejina desert area based on a field survey for collection and identification of voucher specimens. The results show that a total of 121 folk names of local plants have correspondence with 93 scientific species which belong to 26 families and 70 genera. The correspondence between plants' Mongol folk names and scientific species may be classified as one to one correspondence, multitude to one correspondence and one to multitude correspondence. The Ejina Mongolian plant folk names were formed on the basis of observations and an understanding of the wild plants growing in their desert environment. The high correspondence between folk names and scientific names shows the scientific meaning of folk botanical nomenclature and classification. It is very useful to take an inventory of biodiversity, especially among the rapid rural appraisal (RRA in studying biodiversity at the community level.

  2. Distribution pathways of hexachlorocyclohexane isomers in a soil-plant-air system. A case study with Cynara scolymus L. and Erica sp. plants grown in a contaminated site

    Energy Technology Data Exchange (ETDEWEB)

    Calvelo Pereira, R. [Departamento de Edafoloxia e Quimica Agricola, Facultade de Bioloxia, Universidade de Santiago de Compostela, Campus Sur, 15782 Santiago de Compostela (Spain)], E-mail: edrobert@usc.es; Monterroso, C.; Macias, F.; Camps-Arbestain, M. [Departamento de Edafoloxia e Quimica Agricola, Facultade de Bioloxia, Universidade de Santiago de Compostela, Campus Sur, 15782 Santiago de Compostela (Spain)

    2008-09-15

    This study focuses on the main routes of distribution and accumulation of different hexachlorocyclohexane (HCH) isomers (mainly {alpha}-, {beta}-, {gamma}- and {delta}-HCH) in a soil-plant-air system. A field assay was carried out with two plant species, Cynara scolymus L. and Erica sp., which were planted either: (i) directly in the HCH-contaminated soil; or (ii) in pots filled with uncontaminated soil, which were placed in the HCH-contaminated soil. Both plant species accumulated HCH in their tissues, with relatively higher accumulation in above-ground biomass than in roots. The {beta}-HCH isomer was the main isomer in all plant tissues. Adsorption of HCH by the roots from contaminated soil (soil {yields} root pathway) and adsorption through the aerial biomass from either the surrounding air, following volatilization of the contaminant (soil {yields} air {yields} shoot pathway), and/or contact with air-suspended particles contaminated with HCH (soil particles {yields} shoot pathway) were the main mechanisms of accumulation. These results may have important implications for the use of plants for reducing the transfer of contaminants via the atmosphere. - Hexachlorocyclohexane isomers are preferentially accumulated in above-ground tissues of plants grown in a heavily contaminated site.

  3. Indigenous knowledge for plant species diversity: a case study of wild plants' folk names used by the Mongolians in Ejina desert area, Inner Mongolia, P. R. China.

    Science.gov (United States)

    Khasbagan; Soyolt

    2008-01-16

    Folk names of plants are the roots of traditional plant biodiversity knowledge. This paper mainly records and analyses the wild plant folk names of the Mongolians in the Ejina desert area based on a field survey for collection and identification of voucher specimens. The results show that a total of 121 folk names of local plants have correspondence with 93 scientific species which belong to 26 families and 70 genera. The correspondence between plants' Mongol folk names and scientific species may be classified as one to one correspondence, multitude to one correspondence and one to multitude correspondence. The Ejina Mongolian plant folk names were formed on the basis of observations and an understanding of the wild plants growing in their desert environment. The high correspondence between folk names and scientific names shows the scientific meaning of folk botanical nomenclature and classification. It is very useful to take an inventory of biodiversity, especially among the rapid rural appraisal (RRA) in studying biodiversity at the community level.

  4. Definizione di un modello di prioritá clinica per la gestione dei tempi e delle liste di attesa

    Directory of Open Access Journals (Sweden)

    L. Bruno

    2003-05-01

    Full Text Available La gestione dei tempi di attesa, per la complessità dei determinanti che vi concorrono, costituisce una delle criticità del SSN frequentemente affrontata come un’emergenza. Per individuare soluzioni appropriate, garantendo tempi di attesa non tanto brevi quanto certi e adeguati al bisogni clinici, la Regione Lazio recependo gli indirizzi nazionali ha dato mandato ai Direttori Generali di definire e realizzare un’azione di governo clinico, che adegui l’offerta al bisogno reale. A tal fine la ASL Roma E ha progettato il presente studio pilota per la definizione di un modello di sperimentazione di priorità clinica, focalizzato su alcune prestazioni ambulatoriali critiche e sulle patologie oncologiche della mammella, del polmone e dell’apparato gastroenterico. Materiali e metodi: è stato costituito un gruppo di Progetto multidisciplinare per il coordinamento, il monitoraggio e la valutazione dello studio che ha coinvolto i medici prescrittori (MMGG e specialisti ambulatoriali, i medici dei Presidi ospedalieri, i Distretti, il CUP. In considerazione dell’estensione del territorio della ASL, della elevata densità di popolazione, della distribuzione dei presidi erogatori, la sperimentazione è stata circoscritta ad un ambito territoriale ristretto, corrispondente a quello del Municipio XVII. Sono stati arruolati 24 MMGG, individuati fra quelli inseriti in forme associative, con una popolazione di circa 30.000 assistiti. Sono state coinvolte sei strutture a gestione diretta insistenti nel Municipio. È stato previsto l’adattamento della procedura informatica di prenotazione, il coinvolgimento e la formazione degli operatori interni ai reparti ospedalieri interessati e del personale addetto al front - office. Risultati: definizione dei criteri clinici di arruolamento nelle classi di prioritarizzazione delle prestazioni ambulatoriali e delle patologie oncologiche con esplicitazione della graduazione del bisogno clinico. Creazione di un

  5. Deploiement et gestion d'un reseau de noeuds multimedias embarques et distribues dans un habitat intelligent

    Science.gov (United States)

    Stein, Kilian

    Les laboratoires de recherche sur l'assistance aux personnes âgées ou avec une déficience cognitive possèdent actuellement peu de solutions réellement déployables dans un habitat. Ils se heurtent donc à un problème de transfert de leurs applications vers des conditions réelles. En effet, la plupart de ces applications ont besoin de serveurs et d'équipements coûteux ou complexes à installer. La nouvelle tendance des laboratoires de recherche est donc à l'élaboration de solutions plug and play. En effet, ces dernières sont facilement et rapidement installables dans un habitat. C'est dans cette optique que mon présent projet de recherche a été réalisé. L'objectif de cette maîtrise est de proposer une solution à ce problème en déployant des plateformes embarquées pouvant supporter des applications multimédias distribuées. Ces plateformes appelées noeuds multimédias ont la particularité d'être simples d'installation, peu intrusives et de faibles coûts. Afin de tester la gestion du réseau de noeuds multimédias, une application distribuée de suivi multimédia à travers un habitat intelligent a été réalisée dans l'appartement du laboratoire DOMUS. Mots-clés : réseau, distribué, multimédia, embarqué, habitat intelligent, déploiement, gestion, suivi multimédia.

  6. Radioactive waste management - a European issue; Gestion des dechets radioactifs - Une question europeenne

    Energy Technology Data Exchange (ETDEWEB)

    Blohm-Hieber, U. [Chef de l' Unite Energie nucleaire, transport, demantelement et gestion des dechets, Direction generale de l' energie - Commission europeenne (Belgium)

    2011-02-15

    Today, the European Union (EU) nuclear panorama is changing rapidly. Many Member States have reconsidered the nuclear energy option and its contribution towards a balanced energy mix. Such perspectives fit well with the European 2020 Strategy for smart, sustainable and inclusive growth which aims at a 'Resource efficient Europe'. This objective demands a gradual but clear shift towards a low-carbon economy. In fact today, nuclear power already contributes to 2/3 of the low-carbon electricity production. It is unquestionably our shared duty to ensure that nuclear energy be used in a responsible manner. Nuclear safety is, and remains, an absolute priority for the EU. This includes the highest safety standards for the design, for the operation and for the security of nuclear installations. But, it also extends to the safe management of spent fuel and radioactive waste, generated in all Member States, regardless of whether they have nuclear power plants or not. Nuclear techniques are also to be found in the medical sector, for cancer therapy, and in industry, in such applications as the quality control of welds. The draft of the European directive on radioactive wastes imposes that all radioactive waste should be disposed in the member state that has produced it except in case of agreements between member states. This directive does not apply to military wastes, to ore tailings and authorized radioactive releases

  7. "Life without nuclear power": A nuclear plant retirement formulation model and guide based on economics. San Onofre Nuclear Generating Station case: Economic impacts and reliability considerations leading to plant retirement

    Science.gov (United States)

    Wasko, Frank

    Traditionally, electric utilities have been slow to change and very bureaucratic in nature. This culture, in and of itself, has now contributed to a high percentage of United States electric utilities operating uneconomical nuclear plants (Crooks, 2014). The economic picture behind owning and operating United States nuclear plants is less than favorable for many reasons including rising fuel, capital and operating costs (EUCG, 2012). This doctoral dissertation is specifically focused on life without nuclear power. The purpose of this dissertation is to create a model and guide that will provide electric utilities who currently operate or will operate uneconomical nuclear plants the opportunity to economically assess whether or not their nuclear plant should be retired. This economic assessment and stakeholder analysis will provide local government, academia and communities the opportunity to understand how Southern California Edison (SCE) embraced system upgrade import and "voltage support" opportunities to replace "base load" generation from San Onofre Nuclear Generating Station (SONGS) versus building new replacement generation facilities. This model and guide will help eliminate the need to build large replacement generation units as demonstrated in the SONGS case analysis. The application of The Nuclear Power Retirement Model and Guide will provide electric utilities with economic assessment parameters and an evaluation assessment progression needed to better evaluate when an uneconomical nuclear plant should be retired. It will provide electric utilities the opportunity to utilize sound policy, planning and development skill sets when making this difficult decision. There are currently 62 nuclear power plants (with 100 nuclear reactors) operating in the United States (EIA, 2014). From this group, 38 are at risk of early retirement based on the work of Cooper (2013). As demonstrated in my model, 35 of the 38 nuclear power plants qualify to move to the economic

  8. Probabilistic seismic safety assessment of a CANDU 6 nuclear power plant including ambient vibration tests: Case study

    Energy Technology Data Exchange (ETDEWEB)

    Nour, Ali [Hydro Québec, Montréal, Québec H2L4P5 (Canada); École Polytechnique de Montréal, Montréal, Québec H3C3A7 (Canada); Cherfaoui, Abdelhalim; Gocevski, Vladimir [Hydro Québec, Montréal, Québec H2L4P5 (Canada); Léger, Pierre [École Polytechnique de Montréal, Montréal, Québec H3C3A7 (Canada)

    2016-08-01

    Highlights: • In this case study, the seismic PSA methodology adopted for a CANDU 6 is presented. • Ambient vibrations testing to calibrate a 3D FEM and to reduce uncertainties is performed. • Procedure for the development of FRS for the RB considering wave incoherency effect is proposed. • Seismic fragility analysis for the RB is presented. - Abstract: Following the 2011 Fukushima Daiichi nuclear accident in Japan there is a worldwide interest in reducing uncertainties in seismic safety assessment of existing nuclear power plant (NPP). Within the scope of a Canadian refurbishment project of a CANDU 6 (NPP) put in service in 1983, structures and equipment must sustain a new seismic demand characterised by the uniform hazard spectrum (UHS) obtained from a site specific study defined for a return period of 1/10,000 years. This UHS exhibits larger spectral ordinates in the high-frequency range than those used in design. To reduce modeling uncertainties as part of a seismic probabilistic safety assessment (PSA), Hydro-Québec developed a procedure using ambient vibrations testing to calibrate a detailed 3D finite element model (FEM) of the containment and reactor building (RB). This calibrated FE model is then used for generating floor response spectra (FRS) based on ground motion time histories compatible with the UHS. Seismic fragility analyses of the reactor building (RB) and structural components are also performed in the context of a case study. Because the RB is founded on a large circular raft, it is possible to consider the effect of the seismic wave incoherency to filter out the high-frequency content, mainly above 10 Hz, using the incoherency transfer function (ITF) method. This allows reducing significantly the non-necessary conservatism in resulting FRS, an important issue for an existing NPP. The proposed case study, and related methodology using ambient vibration testing, is particularly useful to engineers involved in seismic re-evaluation of

  9. Extending simulations for virtual commissioning to operating plants. Challenges during the operation phase of industrial plants and use cases for simulations in parallel to operating plants; Von der virtuellen Inbetriebnahme zur Betriebsparallelen Simulation. Herausforderungen im Anlagenbetrieb und Nutzenpotentiale der Betriebsparallelen Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Kain, Sebastian; Schiller, Frank [TU Muenchen (Germany). Lehrstuhl fuer Informationstechnik im Maschinenwesen; Heuschmann, Christian [Siemens AG, Nuernberg (Germany). Industry Sector, Industry Automation, Advanced Technologies and Standards

    2008-07-01

    Short product life cycles, increasing complexity of machines and production plants as well as competitive markets require the identification of the potential for reducing efforts concerning time and costs during the life cycle of production plants. In this context, simulation plays a key role. While simulation methods are mainly applied during the development and engineering phases nowadays, the use of simulation models in parallel to machines and industrial plants during the operation phase provides additional benefits, not entirely discovered at present. In this paper, potentials are derived in use cases and two methodological approaches based on a simulation of the plant running in parallel are presented. (orig.)

  10. LC-MS based screening and targeted profiling methods for complex plant: coffee a case study.

    Science.gov (United States)

    da Rosa, Jeane Santos; Freitas-Silva, Otniel; Pacheco, Sidney; de Oliveira Godoy, Ronoel Luiz; de Rezende, Claudia Moraes

    2012-11-01

    In the recent years the way of thinking about human health necessarily passes by human food. Recent discoveries are not only concerned about valuable biomolecules but also contaminants. Thus, the screening of substances in animal and vegetable matrices by analytical techniques is focused on the presence and absence of target substance. In both cases, the majority of these substances are present as traces or in very low levels. Contaminants could be naturally present in the food, inserted on it or even developed on it as a consequence of food processing or cooking. Pesticides, mycotoxins, dioxins, acrylamide, Sudan red, melamine and now 4(5)-methylimidazole can be, at present, be listed as some of the world big problems related to food contaminants and adulterants. With the development of liquid chromatography coupled to mass spectrometry (LC-MS-MS), in the last few decades, analysis of some food contaminants in trace levels trace become less laborious, more accurate and precise. The multiple approach of those techniques make possible to obtain many results in one single run. On the other hand, European Union (2002/657/EC) established regulations for analytical methods regarding mass spectrometry as detection tool, showing the importance of this technique in food quality control. The EU criteria uses identification points (IPs) that could be achieved basically with four product ions (including molecular ion) or reduced with the use of high resolution equipments. This kind of mass spectrometers made the IPs criteria more accessible, as the exact mass information is a differential tool. In view of this the aim of this review is to present the actual scenario for mass spectrometry analysis in a complex vegetable food matrix such as roasted coffee, with emphasis on needs and challenges regarding the LC-MS technique in order to meet and contribute to food safety standards in this complex matrix.

  11. Vers une démarche structurée de gestion forestière intégrée et participative

    OpenAIRE

    Rondeux, Jacques

    2005-01-01

    Cette note présente une approche structurée de mise en oeuvre d’une gestion forestière intégrée et participative testée, dans le cadre d’un massif boisé de plusieurs milliers d’hectares situé en Belgique méridionale. Le processus de décision se déroule en trois phases : la construction de scénarios de gestion potentiels, leur évaluation par l’intermédiaire d’indicateurs spécifiques puis leur comparaison multicritère. Ces étapes, dont l’accomplissement résulte souvent d’itérations successives,...

  12. Evolution des systèmes d'irrigation et gestion de la salinité des terres irriguées

    OpenAIRE

    Marlet, Serge

    2004-01-01

    International audience; Le développement de l'irrigation s'est, dans la majorité des situations, accompagné de l'apparition de processus de salinisation, de sodisation ou d'alcalinisation des sols à des degrés d'importance divers. Si les situations apparaissent très variées en raison des caractéristiques du milieu naturel et des modalités de gestion de l'eau et des systèmes de culture, ces dégradations résultent pour l'essentiel de modes de gestion inappropriés dans les systèmes irrigués. En ...

  13. Les effets sur la compétitivité internationale des réglementations relatives à la gestion des effluents d'élevage

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou

    2003-01-01

    différences sensibles de compétitivité de la production porcine et d’une concurrence internationale croissante sur le marché de la viande de porc explique que l’on se préoccupe de la charge financière imposée par les politiques de l’environnement aux éleveurs, notamment en ce qui concerne la gestion des...... petites exploitations appliquant la réglementation. Néanmoins, les coûts imposés par les règles de gestion des effluents dans les différents pays n’apparaissent pas assez importants pour rendre compte des écarts généraux de compétitivité de la viande de porc entre pays producteurs....

  14. Tant qu’il y aura des « profanes »… dans la gestion des risques littoraux

    OpenAIRE

    2016-01-01

    Cet article part du constat selon lequel les pratiques et les discours actuels en matière de gestion des risques littoraux relèvent encore prioritairement de modes de gestion fondés sur les « savoirs experts ». Il interroge alors la validité du « modèle du déficit » qui sous-tend cette approche et qui présuppose, en l’absence d’une information et d’une communication officielles idoines, un public peu averti et peu rationnel face aux risques. Issu d’une enquête par questionnaire réalisée duran...

  15. Distribution pathways of hexachlorocyclohexane isomers in a soil-plant-air system. A case study with Cynara scolymus L. and Erica sp. plants grown in a contaminated site.

    Science.gov (United States)

    Pereira, R Calvelo; Monterroso, C; Macías, F; Camps-Arbestain, M

    2008-09-01

    This study focuses on the main routes of distribution and accumulation of different hexachlorocyclohexane (HCH) isomers (mainly alpha-, beta-, gamma- and delta-HCH) in a soil-plant-air system. A field assay was carried out with two plant species, Cynara scolymus L. and Erica sp., which were planted either: (i) directly in the HCH-contaminated soil; or (ii) in pots filled with uncontaminated soil, which were placed in the HCH-contaminated soil. Both plant species accumulated HCH in their tissues, with relatively higher accumulation in above-ground biomass than in roots. The beta-HCH isomer was the main isomer in all plant tissues. Adsorption of HCH by the roots from contaminated soil (soil-->root pathway) and adsorption through the aerial biomass from either the surrounding air, following volatilization of the contaminant (soil-->air-->shoot pathway), and/or contact with air-suspended particles contaminated with HCH (soil particles-->shoot pathway) were the main mechanisms of accumulation. These results may have important implications for the use of plants for reducing the transfer of contaminants via the atmosphere.

  16. Design and sampling plan optimization for RT-qPCR experiments in plants: a case study in blueberry

    Directory of Open Access Journals (Sweden)

    Jose V Die

    2016-03-01

    Full Text Available The qPCR assay has become a routine technology in plant biotechnology and agricultural research. It is unlikely to be technically improved, but there are still challenges which center around minimizing the variability in results and transparency when reporting technical data in support of the conclusions of a study. There are a number of aspects of the pre- and post-assay workflow that contribute to variability of results. Here, through the study of the introduction of error in qPCR measurements at different stages of the workflow, we describe the most important causes of technical variability in a case study using blueberry. In this study, we found that the stage for which increasing the number of replicates would be the most beneficial depends on the tissue used. For example, we would recommend the use of more RT replicates when working with leaf tissue, while the use of more sampling (RNA extraction replicates would be recommended when working with stems or fruits to obtain the most optimal results. The use of more qPCR replicates provides the least benefit as it is the most reproducible step. By knowing the distribution of error over an entire experiment and the costs at each step, we have developed a script to identify the optimal sampling plan within the limits of a given budget. These findings should help plant scientists improve the design of qPCR experiments and refine their laboratory practices in order to conduct qPCR assays in a more reliable-manner to produce more consistent and reproducible data.

  17. Design and Sampling Plan Optimization for RT-qPCR Experiments in Plants: A Case Study in Blueberry.

    Science.gov (United States)

    Die, Jose V; Roman, Belen; Flores, Fernando; Rowland, Lisa J

    2016-01-01

    The qPCR assay has become a routine technology in plant biotechnology and agricultural research. It is unlikely to be technically improved, but there are still challenges which center around minimizing the variability in results and transparency when reporting technical data in support of the conclusions of a study. There are a number of aspects of the pre- and post-assay workflow that contribute to variability of results. Here, through the study of the introduction of error in qPCR measurements at different stages of the workflow, we describe the most important causes of technical variability in a case study using blueberry. In this study, we found that the stage for which increasing the number of replicates would be the most beneficial depends on the tissue used. For example, we would recommend the use of more RT replicates when working with leaf tissue, while the use of more sampling (RNA extraction) replicates would be recommended when working with stems or fruits to obtain the most optimal results. The use of more qPCR replicates provides the least benefit as it is the most reproducible step. By knowing the distribution of error over an entire experiment and the costs at each step, we have developed a script to identify the optimal sampling plan within the limits of a given budget. These findings should help plant scientists improve the design of qPCR experiments and refine their laboratory practices in order to conduct qPCR assays in a more reliable-manner to produce more consistent and reproducible data.

  18. Gestion de l'eau en milieu aride : considérations physiques et sociales pour l'identification des territoires pertinents dans le Sud-Est tunisien

    Directory of Open Access Journals (Sweden)

    Bruno Romagny

    2006-02-01

    Full Text Available La situation actuelle des ressources en eau et de leurs usages dans le Sud-Est tunisien présente des enjeux qui sont communs à de nombreuses régions du bassin méditerranéen : des ressources limitées et déjà largement exploitées pour répondre à la croissance des besoins, le recours accru aux ressources dites non conventionnelles, une situation de concurrence entre usages sectoriels, une marchandisation croissante des ressources, et des conditions climatiques contraignantes qui viennent renforcer les tensions autour de l'eau. Dans le contexte des mutations en cours, face aux risques de déficits en eau et à la nécessité d'un développement économique et social équilibré, ces caractéristiques, parmi d'autres, font de la Jeffara tunisienne un cas d'étude exemplaire des difficultés que pose la gestion intégrée de l'eau. Celle-ci doit prendre en compte les différentes sources d'approvisionnement ainsi que les différents usages associés, et donc l'identification des territoires pertinents pour cette  gestion, compte tenu des relations amont-aval naturelles et artificielles d'une part, et des cohérences institutionnelles et sociales d'autre part.The current situation of the water resources and their uses in South-Eastern Tunisia presents stakes which are common to many areas of the Mediterranean basin : limited and already largely exploited resources to address the growth of the needs, the increasing use of so-called non conventional resources, a competition between sectoral uses of water, an increasing merchandising of the resources, and constraining climatic conditions which reinforce the tensions around water. In the context of the changes in progress, facing the hazard of water deficits and with the need for a balanced economic and social development, these characteristics, among others, make Tunisian Jeffara be an exemplary case of study of the difficulties raised by the integrated water resources management. This one

  19. Les unités pastorales du Sahel sénégalais, outils de gestion de l’elevage et des espaces pastoraux. projet durable ou projet de développement durable ?

    Directory of Open Access Journals (Sweden)

    Abdrahmane Wane

    2006-12-01

    Full Text Available Au Ferlo (Sahel sénégalais, la durabilité de l’élevage pastoral repose sur la diversité et la flexibilité des régimes de mobilité. Depuis les années 90, le Projet d’Appui à l’Elevage (PAPEL intervient dans la zone pour organiser la gestion des ressources naturelles à l’échelle des unités pastorales (UP, avec l’objectif affiché d’assurer le contrôle et la durabilité de cette activité. Nous avons tenté d’évaluer la pertinence de la généralisation de ce projet d’envergure à l’aune des caractéristiques propres au pastoralisme, dorénavant reconnu comme la meilleure forme de mise en valeur dans l’environnement incertain du Ferlo. Même si les unités pastorales de gestion des ressources ont prouvé leur intérêt dans plusieurs cas de la première phase du projet en zone pastorale, il semble que dans le contexte sénégalais actuel de politique sectorielle agricole, et d’accaparement privé des ressources foncières, la généralisation systématique du schéma des UP sur tout le territoire risquerait plutôt de menacer la durabilité de la mobilité pastorale.In Ferlo (Senegalese Sahel, the sustainability of the livestock farming depends on the diversity and the flexibility of the regulations of mobility. Since the 90s, the PAPEL (Senegalese Support Project for Livestock has intervened in the area in order to manage the natural resources on the scale of the pastoral units (UP with the declared objective to ensure the control and the sustainability of this activity.  We tried to estimate the relevance of the general implementation of this large-scale project by the yardstick of the characteristics peculiar to Pastoralism, henceforth known as the best valorisation form in the uncertain environment of Ferlo. Even if the pastoral units as tools of the natural resource management have demonstrated their interest in many cases of the first stage of the project in the pastoral area, it seems that, in the

  20. Gestion des voies aériennes supérieures et cellulite cervico-faciale

    Science.gov (United States)

    Kechna, Hicham; Nadour, Karim; Ouzzad, Omar; Chkoura, Khalid; Choumi, Faical; Loutid, Jaouad; Moumine, Mohamed; Hachimi, Moulay Ahmed

    2017-01-01

    Introduction La cellulite maxillo faciale est urgence médico chirurgicale. Ces patients sont le plus souvent pris en charge au bloc opératoire d’une part pour la mise à plat et le drainage des collections et d’autres parts pour les prélèvements bactériologiques. L’anesthésie de ce genre de patient expose à des difficultés potentielles de contrôle des voies aériennes supérieures. Méthodes Il s'agissait d'une étude rétrospective réalisée sur une durée de 24 mois dans le pôle d’anesthésie réanimation et urgence de l’hôpital militaire Moulay Ismail de Meknès avec la collaboration des services de stomatologie et d’oto-rhino laryngologie. On été inclus tous les patients admis au bloc pour cure chirurgicale sous anesthésie générale d’une cellulite cervicale et/ou maxillo-faciale. Résultats Nous avons colligé 22 dossiers. Le sexe ratio était à 4,5 en faveur des hommes. L'âge moyen des patients est de 29 ans. Concernant la gestion des voies aériennes ; une intubation standard à l’aide de laryngoscope a été retenue chez la plupart des patients (17 patients). L’intubation vigile sous fibroscopie a été réalisée chez 3 patients, une trachéotomie première a été faite chez une patiente et une intubation rétrograde salvatrice a été retenue chez une autre patiente. Conclusion Deux défis guettent tout anesthésiste prenant en charge des patients présentant une cellulite cervico-faciale, un risque de ventilation difficile et un souci d’intubation laborieuse. Les deux risques sont à envisager de principe, et où une stratégie anticipative devra être élaborée. Introduction Maxillofacial cellulitis is a medical-surgical emergency. These patients are most often treated in the operating room on the one hand for identifying and draining the collections and on the other hand for bacteriological samples. The type of anesthetic technique used exposes to potential difficulties in controlling the upper airways. Methods

  1. LA CONTABILIDAD Y SU RELACION CON LA GESTION DEL TALENTO HUMANO EN LAS EMPRESAS INDUSTRIALES DE MANIZALES,BAJO UNA PERSPECTIVA DE LA RESPONSABILIDAD SOCIAL

    OpenAIRE

    JIMENEZ AGUIRRE, RUBIELA

    2010-01-01

    El presente trabajo abordara elementos de analisis y de compresnsion de la relacion de la contabilidad con la gestion humana en las organizaciones,ya que no se evidencia un sistema contable que de cuenta de la valoracion y medicion de los recursos humanos en las organizaciones y las necesidades de informacion que requiere la gerencia para una adecuada toma de decisiones en materia de inversion en el talento humano.

  2. Folk Knowledge of an Individual Plant Specimen: The Case of the Royal Fern (Osmunda regalis L. in Virestad Parish, Småland, Sweden

    Directory of Open Access Journals (Sweden)

    Ingvar Svanberg

    2012-11-01

    Full Text Available Ethnobiological studies of local economic or folk religious uses of plants often rely on the assumption that plant use relates to folk knowledge about specific taxa. However, in some cases, folk knowledge is more about beliefs concerning an individual plant. When Carl Linnaeus traveled in 1749 through his native province of Småland, Sweden, he observed a striking specimen of a royal fern (Osmunda regalis L., which was being used by a local healer. The appearance and unusually large size of this individual plant specimen were possibly responsible for its use. This species has not been used elsewhere in Sweden and historical data refer only to the single specimen observed by Linnaeus.

  3. Implementation of Environmental Judgments in Context: A Comparative Analysis of Dahanu Thermal Power Plant Pollution Case in Maharashtra and Vellore Leather Industrial Pollution Case in Tamil Nadu

    Directory of Open Access Journals (Sweden)

    Geetanjoy Sahu

    2010-12-01

    Full Text Available This paper explores a relatively neglected aspect of understanding the post-environmental judgment scenario: the impact of environmental judgment at the grassroots level and why there has been variation in the implementation of environmental judgments. It examines two Supreme Court environmental judgments on industrial pollution in two different states of India-the Dahanu Power Plant Case in Thane District of Maharashtra and the leather industrial pollution case in Vellore District of Tamil Nadu-and raises one central question-what factors determine the effective implementation of Supreme Court’s environmental judgments. The premise of this paper is that, despite the existence of a well-established regulatory framework to enforce environmental laws and policies in India, there has been a variation in the implementation of environmental judgments. From the judicial activism perspective, emphasis is placed on how the nature and level of judicial intervention in the post-judgment scenario, ensures the effective implementation of its own directions. It is argued that judicial intervention in the implementation of its decisions has become crucial to enforce its directions, and that this intervention is undertaken not to take away the power and functions of implementing agency, but rather to translate its directions into action at the grassroots level. In turn, the successful enforcement of environmental judgments depends on the nature of judicial activism, or the way in which the judges bring changes in the implementation process. As a consequence, it is not the level of judicial activism in itself which is decisive, but the process of activism that contributes towards the effective implementation of its decisions. In establishing this argument, however, the paper also argues that the process of judicial activism in the implementation of its direction is triggered by the active and consistent involvement of civil-society groups at the grassroots

  4. Impact of daily variation of solar radiation on photovoltaic plants economy at the open market: A case study "Bavanište" (Serbia

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    Babić Iva M.

    2015-01-01

    Full Text Available The main purpose of this paper is to propose a correlation index between average time diagram of Photovoltaic Power Plant production and a typical diagram of the price of electrical energy at the open market. The basic idea is to define correlation index, which is of key importance for assessing the economy of a Photovoltaic Power Plant under open market conditions. This index may be useful for investors during evaluation of economic parameters of a Photovoltaic Power Plant project which will one part of its lifetime operate at the open market. In this paper, a case study for the project Bavanište - Serbia is been presented. The estimated value of correlation index shows that each of the produced MWh at prospective Photovoltaic Power Plant Bavanište will realize a price at The Germain Electricity Market - EEX, which is on average 20.8% higher than the average annual price of an MWh. By taking example of the prospective Photovoltaic Power Plant located in Bavanište in Serbia, the proposed methodology has been used to show that the average MWh of electrical energy produced by a Photovoltaic Power Plant at the open market, can be over 20% better valued compare to Wind Power Plant in the same region. [Projekat Ministarstva nauke Republike Srbije, br. III 42009

  5. Using Plant Clinic Registers to Assess the Quality of Diagnoses and Advice Given to Farmers: A Case Study from Uganda

    Science.gov (United States)

    Danielsen, Solveig; Boa, Eric; Mafabi, Moses; Mutebi, Emmanuel; Reeder, Robert; Kabeere, Flavia; Karyeija, Robert

    2013-01-01

    Purpose: This study developed a framework for quality assessment of diagnoses and advice given at plant clinics. Design/methodology/approach: Clinic registers from five plant clinics in Uganda (2006-2010) were used to develop quality assessment protocols for diagnoses and advice given by plant doctors. Assessment of quality of diagnoses was based…

  6. Does exogenic food benefit both partners in an ant-plant mutualism? The case of Cecropia obtusa and its guest Azteca plant-ants.

    Science.gov (United States)

    Dejean, Alain; Petitclerc, Frédéric; Roux, Olivier; Orivel, Jérôme; Leroy, Céline

    2012-03-01

    In the mutualisms involving the myrmecophyte Cecropia obtusa and Azteca ovaticeps or A. alfari, both predatory, the ants defend their host trees from enemies and provide them with nutrients (myrmecotrophy). A. ovaticeps provisioned with prey and then (15)N-enriched food produced more individuals than did control colonies (not artificially provisioned). This was not true for A. alfari colonies, possibly due to differences in the degree of maturity of the colonies for the chosen range of host tree sizes (less than 3m in height). Myrmecotrophy was demonstrated for both Azteca species as provisioning the ants with (15)N-enriched food translated into higher δ(15)N values in host plant tissues, indicating that nitrogen passed from the food to the plant. Thus, the predatory activity of their guest ants benefits the Cecropia trees not only because the ants protect them from defoliators since most prey are phytophagous insects but also because the plant absorbs nutrients.

  7. Knowledge of medicinal plants and their uses among secondary and grammar school students: A case study from Slovenia

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    Strgar Jelka

    2013-01-01

    Full Text Available The use of medicinal plants has been decreasing gradually. Our main objective was to determine whether young people today are still familiar with medicinal plants, and whether traditional knowledge, which forms part of the cultural heritage, has been lost or is still being passed on to new generations. In our study, we found that the majority of 19-year-olds used medicinal plants occasionally. They mostly buy dried plants or products based on medicinal plants; they rarely grew plants themselves. Their general knowledge concerning the use and effects of using these plants was not satisfactory. Students were only able to identify correctly a few medicinal plants, and most were not able to recognize poisonous plants. It was proposed that more time in school should be devoted to this topic because pupils did show interest in medicinal plants. This could be in the form of an elective module in the frame of an open curriculum that would also include growing plants in a school garden.

  8. Evaluating Public Participation Process in Development Projects in Thailand: A Case Study of the Hin Krut Power Plant Project

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    Chutarat Chompunth

    2012-01-01

    Full Text Available Problem statement: Public participation has become a vital element of environmental decision-making. Although public participation has grown tremendously in Thailand due to a rising pressure from the public, this practice often fails to solve environmental problems and conflicts. There is a keen for a systematic evaluation of the public participation process to investigate whether the participation process is effective and what works or does not work in this respect. Approach: This study evaluates the effectiveness of the public participation process of the Hin Krut power plant project through an evaluation model developed from relevant literatures. Results: It was found that the public participation process of the case study was not completely effective when tested against the evaluation criteria. The affected people had no chance to present any comments at the very beginning. The public participation process started too late, after a decision had been made and conflicts among stakeholders already occurred. Conclusion: The public participation process is not yet properly established in the Thai context. There is an urgent need to find a working model and conditions of public participation which can assist in resolving environmental problems. Finally, a set of recommendations for improving public participation process are suggested.

  9. Decision support system for the optimal location of electrical and electronic waste treatment plants: a case study in greece.

    Science.gov (United States)

    Achillas, Ch; Vlachokostas, Ch; Moussiopoulos, Nu; Banias, G

    2010-05-01

    Environmentally sound end-of-life management of Electrical and Electronic Equipment has been realised as a top priority issue internationally, both due to the waste stream's continuously increasing quantities, as well as its content in valuable and also hazardous materials. In an effort to manage Waste Electrical and Electronic Equipment (WEEE), adequate infrastructure in treatment and recycling facilities is considered a prerequisite. A critical number of such plants are mandatory to be installed in order: (i) to accommodate legislative needs, (ii) decrease transportation cost, and (iii) expand reverse logistics network and cover more areas. However, WEEE recycling infrastructures require high expenditures and therefore the decision maker need to be most precautious. In this context, special care should be given on the viability of infrastructure which is heavily dependent on facilities' location. To this end, a methodology aiming towards optimal location of Units of Treatment and Recycling is developed, taking into consideration economical together with social criteria, in an effort to interlace local acceptance and financial viability. For the decision support system's needs, ELECTRE III is adopted as a multicriteria analysis technique. The methodology's applicability is demonstrated with a real-world case study in Greece.

  10. Case study on incentive mechanism of energy efficiency retrofit in coal-fueled power plant in China.

    Science.gov (United States)

    Yuan, Donghai; Guo, Xujing; Cao, Yuan; He, Liansheng; Wang, Jinggang; Xi, Beidou; Li, Junqi; Ma, Wenlin; Zhang, Mingshun

    2012-01-01

    An ordinary steam turbine retrofit project is selected as a case study; through the retrofit, the project activities will generate emission reductions within the power grid for about 92,463 tCO(2)e per annum. The internal rate of return (IRR) of the project is only -0.41% without the revenue of carbon credits, for example, CERs, which is much lower than the benchmark value of 8%. Only when the unit price of carbon credit reaches 125 CNY/tCO(2), the IRR could reach the benchmark and an effective carbon tax needs to increase the price of carbon to 243 CNY/tce in order to make the project financially feasible. Design of incentive mechanism will help these low efficiency enterprises improve efficiency and reduce CO(2) emissions, which can provide the power plants sufficient incentive to implement energy efficiency retrofit project in existing coal-fuel power generation-units, and we hope it will make a good demonstration for the other low efficiency coal-fueled power generation units in China.

  11. Minimization of the energy loss of nuclear power plants in case of partial in-core monitoring system failure

    Science.gov (United States)

    Zagrebaev, A. M.; Ramazanov, R. N.; Lunegova, E. A.

    2017-01-01

    In this paper we consider the optimization problem minimize of the energy loss of nuclear power plants in case of partial in-core monitoring system failure. It is possible to continuation of reactor operation at reduced power or total replacement of the channel neutron measurements, requiring shutdown of the reactor and the stock of detectors. This article examines the reconstruction of the energy release in the core of a nuclear reactor on the basis of the indications of height sensors. The missing measurement information can be reconstructed by mathematical methods, and replacement of the failed sensors can be avoided. It is suggested that a set of ‘natural’ functions determined by means of statistical estimates obtained from archival data be constructed. The procedure proposed makes it possible to reconstruct the field even with a significant loss of measurement information. Improving the accuracy of the restoration of the neutron flux density in partial loss of measurement information to minimize the stock of necessary components and the associated losses.

  12. Case Study on Incentive Mechanism of Energy Efficiency Retrofit in Coal-Fueled Power Plant in China

    Science.gov (United States)

    Yuan, Donghai; Guo, Xujing; Cao, Yuan; He, Liansheng; Wang, Jinggang; Xi, Beidou; Li, Junqi; Ma, Wenlin; Zhang, Mingshun

    2012-01-01

    An ordinary steam turbine retrofit project is selected as a case study; through the retrofit, the project activities will generate emission reductions within the power grid for about 92,463 tCO2e per annum. The internal rate of return (IRR) of the project is only −0.41% without the revenue of carbon credits, for example, CERs, which is much lower than the benchmark value of 8%. Only when the unit price of carbon credit reaches 125 CNY/tCO2, the IRR could reach the benchmark and an effective carbon tax needs to increase the price of carbon to 243 CNY/tce in order to make the project financially feasible. Design of incentive mechanism will help these low efficiency enterprises improve efficiency and reduce CO2 emissions, which can provide the power plants sufficient incentive to implement energy efficiency retrofit project in existing coal-fuel power generation-units, and we hope it will make a good demonstration for the other low efficiency coal-fueled power generation units in China. PMID:23365532

  13. Case Study on Incentive Mechanism of Energy Efficiency Retrofit in Coal-Fueled Power Plant in China

    Directory of Open Access Journals (Sweden)

    Donghai Yuan

    2012-01-01

    Full Text Available An ordinary steam turbine retrofit project is selected as a case study; through the retrofit, the project activities will generate emission reductions within the power grid for about 92,463 tCO2e per annum. The internal rate of return (IRR of the project is only −0.41% without the revenue of carbon credits, for example, CERs, which is much lower than the benchmark value of 8%. Only when the unit price of carbon credit reaches 125 CNY/tCO2, the IRR could reach the benchmark and an effective carbon tax needs to increase the price of carbon to 243 CNY/tce in order to make the project financially feasible. Design of incentive mechanism will help these low efficiency enterprises improve efficiency and reduce CO2 emissions, which can provide the power plants sufficient incentive to implement energy efficiency retrofit project in existing coal-fuel power generation-units, and we hope it will make a good demonstration for the other low efficiency coal-fueled power generation units in China.

  14. Tracking Legionella in air generated from a biological treatment plant: a case study of the outbreak of legionellosis in Norway

    Science.gov (United States)

    Blatny, Janet M.; Olsen, Jaran S.; Andreassen, Øyvind; Waagen, Viggo; Reif, Bjørn Anders P.

    2011-05-01

    Two outbreaks of legionellosis occurred in the Sarpsborg/Fredrikstad region southeast of Norway in 2005 and 2008 where more than 60 exposed individuals were infected and 10 case patients died. The air scrubber at Borregaard, a wood-based chemical factory, was identified as the outbreak source. High concentration levels of Legionella species, including the etiological agent L. pneumophila SG1 was found in the aeration ponds, which belongs to Borregaard's biological treatment plant. Results showed that these ponds were able to generate Legionella-containing aerosols that were transported by the wind as such aerosols were measured up to 200 meters downwind of the pond. Our studies did not detect L. pneumophila SG1 isolates, only L. pneumophila SG4 during the air sampling measurement campaign. Furthermore, the operational conditions of the air scrubber proved to be harsh for Legionella growth as the outbreak L. pneumophila strains were not able to grow at 45ºC and pH8 (conditions during the outbreaks). These results, together, lead us to suggest that the aeration pond should be regarded as the primary amplifier and disseminator of Legionella and L. pneumophila and thereby most likely being the outbreak source.

  15. A geoprocessing model for the selection of populations most affected by diffuse industrial contamination: the case of oil refinery plants

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    Roberto Pasetto

    2013-03-01

    Full Text Available INTRODUCTION. A method to select populations living in areas affected by diffuse environmental contamination is presented, with particular regard to oil refineries, in the Italian context. The reasons to use municipality instead of census tract populations for environment and health small-area studies of contaminated sites are discussed. METHODS. Populations most affected by diffuse environmental contamination are identified through a geoprocessing model. Data from the national census 2001 were used to estimate census tract level populations. A geodatabase was developed using the municipality and census tract layers provided by the Italian National Bureau of Statistics (ISTAT. The orthophotos of the Italian territory - year 2006 - available on the geographic information systems (GIS of the National Cartographic Portal, were considered. The area within 2 km from the plant border was used as an operational definition to identify the area at major contamination. RESULTS. The geoprocessing model architecture is presented. The results of its application to the selection of municipality populations in a case study are shown. CONCLUSIONS. The application of the proposed geoprocessing model, the availability of long time series of mortality and morbidity data, and a quali-quantitative estimate of contamination over time, could allow an appraisal of the health status of populations affected by oil refinery emissions.

  16. The water management in the industry: Integral system of water management; La gestion del agua en la industria: sistema integral de gestion del agua

    Energy Technology Data Exchange (ETDEWEB)

    Meseque i Sebastia, C.; Cabeza Diaz, R.; Coll i Raich, M. [Instituto Catalan de Energia (Spain)

    1995-06-01

    This article presents the need of integral system for water management in the industry. This system should facilitate to know and control the water. The first part explains the system with its four parts. The second part presents the data to realize the analysis in the decision making. At last a practical case is exposed.

  17. A Case Study of Native Plants at Industrially Contaminated Area in Bhopal and Their Tissue Culture Approach for Phytoremediation

    OpenAIRE

    Ashwini A Waoo; Sujata Ganguly; Swati Khare

    2014-01-01

    In phytoremediation techniques,experiments were done with normal soil-grown or hydroponically grown plants. In recent days, more and more effort is directed toward research to understand and improve the performance of plants in remediation technologies, the number of results obtained with the help of in vitro plant cell and tissue cultures is rapidly increasing.This review focuses on the report of various phytoremediation technologies, paying special attention to removal of pollutants from so...

  18. To Stretch the Boundary of Secondary Metabolite Production in Plant Cell-Based Bioprocessing: Anthocyanin as a Case Study

    OpenAIRE

    Wei Zhang; Chris Franco; Chris Curtin; Simon Conn

    2004-01-01

    Plant cells and tissue cultures hold great promise for controlled production of a myriad of useful secondary metabolites on demand. The current yield and productivity cannot fulfill the commercial goal of a plant cell-based bioprocess for the production of most secondary metabolites. In order to stretch the boundary, recent advances, new directions and opportunities in plant cell-based bioprocessing, have been critically examined for the 10 years from 1992 to 2002. A review of the literature ...

  19. Design and assessment of solar PV plant for girls hostel (GARGI of MNIT University, Jaipur city: A case study

    Directory of Open Access Journals (Sweden)

    Rahul Khatri

    2016-11-01

    Full Text Available In this paper designing and assessment of a solar PV plant for meeting the energy demand of girl’s hostel at MNIT University Jaipur city was analyzed. A solar PV plant was designed with its financial and environmental assessment considering recent market prices. All the aspects related to a solar PV plant were considered for financial feasibility of PV plant near this location. The different financial parameters which affect the financial feasibility of PV plant were considered i.e. discount rate, effective discount rate, rate of escalation of electricity cost, salvage value of the plant etc. The environmental aspect related with the energy generated with PV plant i.e. reduction in carbon emission and carbon credits earned was also considered. Result obtained with the assessment of the proposed plant with different discount rate and current rate of inflation shows that the max IRR 6.85% and NPV of $1,430,834 was obtained with a discount rate of 8% and an inflation rate of 7.23% when no land cost considered and if land cost was considered the maximum IRR was 1.96% and NPV of $630,833. Minimum discounted payback of the plant will be 13.4 years if inflation was considered.

  20. Variation in the effectiveness of biotic defence: the case of an opportunistic ant-plant protection mutualism.

    Science.gov (United States)

    Giusto, Bruno; Anstett, Marie-Charlotte; Dounias, Edmond; McKey, Doyle B

    2001-11-01

    Benefits to plants in facultative ant protection mutualisms are highly variable. This allows examination of the sources of this variation and the mechanisms by which ants protect plants. We studied opportunistic interactions between ants and an extrafloral nectary-bearing vine, Dioscorea praehensilis, during 3 different years. Variation in plant protection among years was striking. Several factors affected the effectiveness of the biotic defence. Stems recently emerged from the underground tuber were self-supporting, contacting no other plants and encountering few foraging ants. Stems then became lianescent, and contact with supporting plants greatly increased ant recruitment. Both species and number of ant workers influenced the effect of ants on the major herbivore, the chrysomelid beetle Lilioceris latipennis. Protective actions included limitation of oviposition (reduction in the number of eggs laid on the plant) and predation, leading to increased larval mortality. The probability of successful predation was strongly dependent on larval size. If temporarily low ant-patrolling activity allows larvae to grow beyond a critical size, their mechanical (thick integument) or chemical (plant-derived compounds in a fecal shield) defences become more effective against ants. Secondary metabolites derived from the host plant thus appear to be important for the anti-predator mechanisms of this beetle, being necessary for its survival and reproduction on a host plant that actively recruits ants as a biotic defence against herbivores.

  1. Removal mechanisms and plant species selection by bioaccumulative factors in surface flow constructed wetlands (CWs): In the case of triclosan.

    Science.gov (United States)

    Zhao, Congcong; Xie, HuiJun; Xu, Jingtao; Zhang, Jian; Liang, Shuang; Hao, Jingcheng; Ngo, Huu Hao; Guo, Wenshan; Xu, Xiaoli; Wang, Qian; Wang, Jingmin

    2016-03-15

    Plants can bioaccumulate triclosan and bond with microbes and sediments in constructed wetlands (CWs) as well. However, little is known regarding the species-specific removal mechanism of CWs components and the selection of suitable wetland plant species for triclosan disposal. In this work, the use of bioaccumulation factors (BAFs) and biota to sediment accumulation factors (BSAFs) for choosing the best triclosan removal plant species was studied in laboratory-scale CWs. By the end of the experiment, over 80% of triclosan was removed and a specie-effect distribution was revealed in CWs with emergent, submerged and floating plants. By mass balance calculation, negative correlation between triclosan concentration in plants and degradation process was observed. The significant correlations between Log BSAFs values and triclosan concentration in plants or degradation contribution made it possible and reasonable in wetland plants selection. Introductions on plant species were provided considering the target removal process or regulation method. This work provided new information on plant species selection in CWs for triclosan removal or its emergency remediation by using bioaccumulative factors. Copyright © 2015 Elsevier B.V. All rights reserved.

  2. In vitro antimicrobial activity of traditional plant used in mestizo shamanism from the Peruvian amazon in case of infectious diseases

    Directory of Open Access Journals (Sweden)

    Vincent Roumy

    2015-01-01

    Full Text Available Context: Our survey was performed near Iquitos (Peruvian Amazon and its surroundings and leads us to consider Mestizo ethnomedical practices. The plant species reported here are traditionally used for ailments related to microbial infections. Inhabitants of various ethnic origins were interviewed, and 52 selected plants extracts were evaluated for their antimicrobial properties against a panel of 36 sensitive and multi-resistant bacteria or yeast. The study aimed at providing information on antimicrobial plant extract activities and the ethnomedical context of Mestizo riverine populations from Loreto (Peru. Material and Method: The minimum inhibitory concentrations (MICs of the plant crude extracts were carried out using the agar dilution method and ranged between 0.075 and 5.0 mg/ml. Results: Of the 40 plants analyzed, 9 species showed MIC ≤0.3 mg/ml (Anacardium occidentale, Couroupita guianensis, Croton lechleri, Davilla rugosa, Erythrina amazonica, Jacaranda copaia subsp. Spectabilis, Oenocarpus bataua, Peperomia macrostachya, and Phyllanthus urinaria for one or several of the 36 microorganisms and only 6 drug extracts were inactive. Among the 40 plants, 13 were evaluated for the first time for an antibacterial activity. Conclusion: This evaluation of the antimicrobial activity of 40 plants using an approved standard methodology allowed comparing those activities against various microbes to establish antimicrobial spectra of standardized plant extracts, and give support to the traditional use of these plants. It may also help discovering new chemical classes of antimicrobial agents that could serve against multi-resistant bacteria.

  3. Energy metering, management and accounting; Comptage, gestion, et comptabilite de l`energie

    Energy Technology Data Exchange (ETDEWEB)

    Foucherand, P. [Agence de l`environnement et de la maitrise de l`energie, Rhone-Alpes (France)

    1996-12-31

    The activities of the French Energy Conservation Agency (ADEME) in the field of energy management and conservation through energy metering in industrial plants, and more especially in mechanical and metal industries, are presented. Audit and diagnostic procedures and information/awareness measures are presented and discussed with the example of a regional program, and two operations conducted in a mechanical industrial plant and a foundry where metering systems were installed

  4. Caracterisation environnementale des emissions atmospheriques d'une source fixe et creation d'un outil de gestion dynamique =

    Science.gov (United States)

    Fournier, Marie-Claude

    Une caracterisation des emissions atmospheriques provenant des sources fixes en operation, alimentees au gaz et a l'huile legere, a ete conduite aux installations visees des sites no.1 et no.2. La caracterisation et les calculs theoriques des emissions atmospheriques aux installations des sites no.1 et no.2 presentent des resultats qui sont en dessous des valeurs reglementaires pour des conditions d'operation normales en periode hivernale et par consequent, a de plus fortes demandes energetiques. Ainsi, pour une demande energetique plus basse, le taux de contaminants dans les emissions atmospheriques pourrait egalement etre en dessous des reglementations municipales et provinciales en vigueur. Dans la perspective d'une nouvelle reglementation provinciale, dont les termes sont discutes depuis 2005, il serait souhaitable que le proprietaire des infrastructures visees participe aux echanges avec le Ministere du Developpement Durable, de l'Environnement et des Parcs (MDDEP) du Quebec. En effet, meme si le principe de droit acquis permettrait d'eviter d'etre assujetti a la nouvelle reglementation, l'application de ce type de principe ne s'inscrit pas dans ceux d'un developpement durable. L'âge avance des installations etudiees implique la planification d'un entretien rigoureux afin d'assurer les conditions optimales de combustion en fonction du type de combustible. Des tests de combustion sur une base reguliere sont donc recommandes. Afin de supporter le processus de suivi et d'evaluation de la performance environnementale des sources fixes, un outil d'aide a la gestion de l'information environnementale a ete developpe. Dans ce contexte, la poursuite du developpement d'un outil d'aide a la gestion de l'information environnementale faciliterait non seulement le travail des personnes affectees aux inventaires annuels mais egalement le processus de communication entre les differents acteurs concernes tant intra- qu'inter-etablissement. Cet outil serait egalement un bon

  5. The Distribution of Microalgae in a Stabilization Pond System of a Domestic Wastewater Treatment Plant in a Tropical Environment (Case Study: Bojongsoang Wastewater Treatment Plant

    Directory of Open Access Journals (Sweden)

    Herto Dwi Ariesyady

    2016-02-01

    Full Text Available The Bojongsoang Wastewater Treatment Plant (WWTP serves to treat domestic wastewater originating from Bandung City, West Java, Indonesia. An abundant amount of nutrients as a result of waste decomposition increases the number of microalgae populations present in the pond of the wastewater treatment plant, thereby causing a population explosion of microalgae, also called algal blooming. In a stabilization pond system, the presence of algal blooming is not desirable because it can decrease wastewater treatment performance. More knowledge about the relationship between the nutrients concentration and algae blooming conditions, such as microalgae diversity, is needed to control and maintain the performance of the wastewater treatment plant. Therefore this study was conducted, in order to reveal the diversity of microalgae in the stabilization pond system and its relationship with the water characteristics of the comprising ponds. The results showed that the water quality in the stabilization pond system of Bojongsoang WWTP supported rapid growth of microalgae, where most rapid microbial growth occurred in the anaerobic pond. The microalgae diversity in the stabilization ponds was very high, with various morphologies, probably affiliated with blue-green algae, green algae, cryptophytes, dinoflagellates and diatoms. This study has successfully produced information on microalgae diversity and abundance profiles in a stabilization pond system.

  6. L'évolution de l'activité de contrôle de gestion en contexte PME : une focalisation sur le suivi des marges et le pilotage du changement

    OpenAIRE

    Van Caillie, Didier

    2002-01-01

    L'activité de contrôle de gestion menée en contexte PME est aujourd'hui devenue véritablement bicéphale, intégrant à la fois un contrôle de gestion opérationnel dominé par la volonté de maîtrise à court terme des coûts et surtout des marges qui traversent la vie quotidienne de l'entreprise au travers de toutes ses activités et un contrôle de gestion stratégique dominé par la volonté de permettre le pilotage effectif du changement dans l'entreprise, changement lui-même issu de l...

  7. Herbivore-induced plant volatiles trigger sporulation in entomopathogenic fungi: the case of Neozygites tanajoae infecting the cassava green mite.

    Science.gov (United States)

    Hountondji, Fabien C C; Sabelis, Maurice W; Hanna, Rachid; Janssen, Arne

    2005-05-01

    A large body of evidence shows that plants release volatile chemicals upon attack by herbivores. These volatiles influence the performance of natural enemies. Nearly all the evidence on the effect of plant volatiles on natural enemies of herbivores concerns predators, parasitoids, and entomophagous nematodes. However, other entomopathogens, such as fungi, have not been studied yet for the way they exploit the chemical information that the plant conveys on the presence of herbivores. We tested the hypothesis that volatiles emanating from cassava plants infested by green mites (Mononychellus tanajoa) trigger sporulation in three isolates of the acaropathogenic fungus Neozygites tanajoae. Tests were conducted under climatic conditions optimal to fungal conidiation, such that the influence of the plant volatiles could only alter the quantity of conidia produced. For two isolates (Altal.brz and Colal.brz), it was found that, compared with clean air, the presence of volatiles from clean, excised leaf discs suppressed conidia production. This suppressive effect disappeared in the presence of herbivore-damaged leaves for the isolate Colal.brz. For the third isolate, no significant effects were observed. Another experiment differing mainly in the amount of volatiles showed that two isolates produced more conidia when exposed to herbivore-damaged leaves compared with clean air. Taken together, the results show that volatiles from clean plants suppress conidiation, whereas herbivore-induced plant volatiles promote conidiation of N. tanajoae. These opposing effects suggest that the entomopathogenic fungus tunes the release of spores to herbivore-induced plant signals indicating the presence of hosts.

  8. Plants Probiotics as a Tool to Produce Highly Functional Fruits: The Case of Phyllobacterium and Vitamin C in Strawberries

    Science.gov (United States)

    Flores-Félix, José David; Silva, Luis R.; Rivera, Lina P.; Marcos-García, Marta; García-Fraile, Paula; Martínez-Molina, Eustoquio; Mateos, Pedro F.; Velázquez, Encarna; Andrade, Paula; Rivas, Raúl

    2015-01-01

    The increasing interest in the preservation of the environment and the health of consumers is changing production methods and food consumption habits. Functional foods are increasingly demanded by consumers because they contain bioactive compounds involved in health protection. In this sense biofertilization using plant probiotics is a reliable alternative to the use of chemical fertilizers, but there are few studies about the effects of plant probiotics on the yield of functional fruits and, especially, on the content of bioactive compounds. In the present work we reported that a strain of genus Phyllobacterium able to produce biofilms and to colonize strawberry roots is able to increase the yield and quality of strawberry plants. In addition, the fruits from plants inoculated with this strain have significantly higher content in vitamin C, one of the most interesting bioactive compounds in strawberries. Therefore the use of selected plant probiotics benefits the environment and human health without agronomical losses, allowing the production of highly functional foods. PMID:25874563

  9. Comprehensive evidence-based assessment and prioritization of potential antidiabetic medicinal plants: a case study from canadian eastern james bay cree traditional medicine.

    Science.gov (United States)

    Haddad, Pierre S; Musallam, Lina; Martineau, Louis C; Harris, Cory; Lavoie, Louis; Arnason, John T; Foster, Brian; Bennett, Steffany; Johns, Timothy; Cuerrier, Alain; Coon Come, Emma; Coon Come, Rene; Diamond, Josephine; Etapp, Louise; Etapp, Charlie; George, Jimmy; Husky Swallow, Charlotte; Husky Swallow, Johnny; Jolly, Mary; Kawapit, Andrew; Mamianskum, Eliza; Petagumskum, John; Petawabano, Smalley; Petawabano, Laurie; Weistche, Alex; Badawi, Alaa

    2012-01-01

    Canadian Aboriginals, like others globally, suffer from disproportionately high rates of diabetes. A comprehensive evidence-based approach was therefore developed to study potential antidiabetic medicinal plants stemming from Canadian Aboriginal Traditional Medicine to provide culturally adapted complementary and alternative treatment options. Key elements of pathophysiology of diabetes and of related contemporary drug therapy are presented to highlight relevant cellular and molecular targets for medicinal plants. Potential antidiabetic plants were identified using a novel ethnobotanical method based on a set of diabetes symptoms. The most promising species were screened for primary (glucose-lowering) and secondary (toxicity, drug interactions, complications) antidiabetic activity by using a comprehensive platform of in vitro cell-based and cell-free bioassays. The most active species were studied further for their mechanism of action and their active principles identified though bioassay-guided fractionation. Biological activity of key species was confirmed in animal models of diabetes. These in vitro and in vivo findings are the basis for evidence-based prioritization of antidiabetic plants. In parallel, plants were also prioritized by Cree Elders and healers according to their Traditional Medicine paradigm. This case study highlights the convergence of modern science and Traditional Medicine while providing a model that can be adapted to other Aboriginal realities worldwide.

  10. Comprehensive Evidence-Based Assessment and Prioritization of Potential Antidiabetic Medicinal Plants: A Case Study from Canadian Eastern James Bay Cree Traditional Medicine

    Directory of Open Access Journals (Sweden)

    Pierre S. Haddad

    2012-01-01

    Full Text Available Canadian Aboriginals, like others globally, suffer from disproportionately high rates of diabetes. A comprehensive evidence-based approach was therefore developed to study potential antidiabetic medicinal plants stemming from Canadian Aboriginal Traditional Medicine to provide culturally adapted complementary and alternative treatment options. Key elements of pathophysiology of diabetes and of related contemporary drug therapy are presented to highlight relevant cellular and molecular targets for medicinal plants. Potential antidiabetic plants were identified using a novel ethnobotanical method based on a set of diabetes symptoms. The most promising species were screened for primary (glucose-lowering and secondary (toxicity, drug interactions, complications antidiabetic activity by using a comprehensive platform of in vitro cell-based and cell-free bioassays. The most active species were studied further for their mechanism of action and their active principles identified though bioassay-guided fractionation. Biological activity of key species was confirmed in animal models of diabetes. These in vitro and in vivo findings are the basis for evidence-based prioritization of antidiabetic plants. In parallel, plants were also prioritized by Cree Elders and healers according to their Traditional Medicine paradigm. This case study highlights the convergence of modern science and Traditional Medicine while providing a model that can be adapted to other Aboriginal realities worldwide.

  11. A software for processing and managing accelerometric data; Sistema per il processamento e la gestione di dati accelerometrici

    Energy Technology Data Exchange (ETDEWEB)

    Bongiovanni, G.; Paciello, A. [ENEA, Centro Ricerche Casaccia, Rome (Italy). Dipt. Ambiente

    1999-07-01

    A software for processing and managing accelerometric data is presented. It is developed on UNIX platform, using IDL (Interactive Data Language). IDL widgets are used to create graphical user interfaces (GUI) which easily allow to execute the processing routines, written in FORTRAN language, to obtain a graphical display of the data through IDL routines and to dialogue with an Accelerometric Data Bank, developed on File Maker Pro and on ARC-INFO platforms. [Italian] Viene presentato un software per il processamento e la gestione di registrazioni accelerometriche. Questo software, sviluppato in ambiente UNIX, e' scritto in linguaggio IDL (Interactive Data Language). I widget (maschere) IDL vengono utilizzati per creare delle interfacce grafiche (GUI, Graphic User Interface) che permettono facilmente l'esecuzione delle routine di processamento, scritte in linguaggio FORTRAN, la restituzione grafica dei dati tramite routine IDL e la comunicazione con una banca dati accelerometrici sviluppata in ambiente File Maker Pro su PC e in ambiente ARC-INFO su workstation.

  12. Multivariate Analysis of Metal Levels in Paddy Soil, Rice Plants, and Rice Grains: A Case Study from Shakargarh, Pakistan

    Directory of Open Access Journals (Sweden)

    Saadia R. Tariq

    2013-01-01

    Full Text Available The present study aims at determining the relationship between trace metal levels in paddy soils, rice plants, and rice grains obtained from these plants. The levels of selected metals (Fe, Co, Ni, Cd, Pb, and Cr were determined by atomic absorption spectrophotometry in the soil, rice plants, and rice grain samples collected from paddy fields. All the metals were present at enhanced levels in paddy soil. Among the selected metals, Fe, Ni, Cd, and Cr were predominantly associated with oxidizable fraction. The metals such as Cr, Ni, Co, and Fe were significantly positively correlated in soil and plants, but no such correlation was observed in soil-grain matrix evidencing that these metals have a soil-based origin in the plants, but they were not translocated to grains. The Pb content of soil was strongly positively correlated with plants as well as the grains. The principal component analysis and cluster analysis were used to depict the origin of enhanced metal levels in rice plants. Under the given field conditions, different metals possess different translocation behaviours from soil to roots to shoots to grains. There is a dire need to implement the strategies for wise and optimum use of agrochemicals.

  13. Maintenance and management of refills NPP Cofrentes; Mantenimiento y gestion de recargas en CN Cofrentes

    Energy Technology Data Exchange (ETDEWEB)

    Salar, J.; Blanquer, N.

    2014-04-01

    Maintenance in a nuclear power plant is a discipline that requires considering multiple criteria. Many risks can be involved during the jobs execution, and the preparation of activities needs an important knowledge and experience. During outages, many pieces of equipment are reviewed and inspected, and there is a huge increase of the number of risks and variables needed to perform and adequate preparation, coordination and execution of the maintenance activities. Cofrentes Nuclear Power Plant has improved the Outage preparation organization, in order to get more people involved, and make sure that all the critical parameters have been considered for each outage work. (Author)

  14. Selecting Proper Plant Species for Mine Reclamation Using Fuzzy AHP Approach (Case Study: Chadormaloo Iron Mine of Iran)

    Science.gov (United States)

    Ebrahimabadi, Arash

    2016-12-01

    This paper describes an effective approach to select suitable plant species for reclamation of mined lands in Chadormaloo iron mine which is located in central part of Iran, near the city of Bafgh in Yazd province. After mine's total reserves are excavated, the mine requires to be permanently closed and reclaimed. Mine reclamation and post-mining land-use are the main issues in the phase of mine closure. In general, among various scenarios for mine reclamation process, i.e. planting, agriculture, forestry, residency, tourist attraction, etc., planting is the oldest and commonly-used technology for the reclamation of lands damaged by mining activities. Planting and vegetation play a major role in restoring productivity, ecosystem stability and biological diversity to degraded areas, therefore the main goal of this research work is to choose proper and suitable plants compatible with the conditions of Chadormaloo mined area, providing consistent conditions for future use. To ensure the sustainability of the reclaimed landscape, the most suitable plant species adapted to the mine conditions are selected. Plant species selection is a Multi Criteria Decision Making (MCDM) problem. In this paper, a fuzzy MCDM technique, namely Fuzzy Analytic Hierarchy Process (FAHP) is developed to assist chadormaloo iron mine managers and designers in the process of plant type selection for reclamation of the mine under fuzzy environment where the vagueness and uncertainty are taken into account with linguistic variables parameterized by triangular fuzzy numbers. The results achieved from using FAHP approach demonstrate that the most proper plant species are ranked as Artemisia sieberi, Salsola yazdiana, Halophytes types, and Zygophyllum, respectively for reclamation of Chadormaloo iron mine.

  15. To what extent are medicinal plants shared between country home gardens and urban ones? A case study from Misiones, Argentina.

    Science.gov (United States)

    Furlan, Violeta; Kujawska, Monika; Hilgert, Norma Ines; Pochettino, María Lelia

    2016-09-01

    Context Worldwide ethnobotanical research has shown the importance of home gardens as sources of medicinal plants. These resources are worthy of further study in the Argentinean Atlantic Forest due to the richness of medicinal flora and their importance for local people. Objective We studied richness, composition, cultural importance and medicinal uses of plants in home gardens of rural, semirural and urban areas in the Iguazú Department (Misiones, Argentina). Our hypothesis claims that people living in different environments have a similar array of medicinal plants in their gardens and they use them in a similar way. Materials and methods The analysis was based on 76 interviews and plant inventories of home gardens. During guided walks in gardens, voucher specimens were collected. To analyse composition, Simpson similarity index was applied and a new index was proposed to measure culturally salient species. Results All the environments had similar species composition with species differing in less than 30% of them. The most culturally salient taxa were Mentha spicata L. (Lamiaceae), in rural, Artemisia absinthium L. (Asteraceae), in semirural, and Aloe maculata All. (Xanthorrhoeaceae), in urban areas. The body systems treated with medicinal plants were similar across study sites. Discussion The results suggest a "core repertoire" of medicinal plants and a widespread exchange of plants among local population. The cultural importance index informs us about plant adaptability, based on the efficacy and the versatility of medicinal resources. Conclusion In this changing context where mobility and migrations constitute everyday life, medicinal plants in home gardens are part of local healthcare sovereignty.

  16. Selecting Proper Plant Species for Mine Reclamation Using Fuzzy AHP Approach (Case Study: Chadormaloo Iron Mine of Iran)

    National Research Council Canada - National Science Library

    Arash Ebrahimabadi

    2016-01-01

    This paper describes an effective approach to select suitable plant species for reclamation of mined lands in Chadormaloo iron mine which is located in central part of Iran, near the city of Bafgh in Yazd province. After...

  17. Sulfur Dioxide (SO2 Accumulation in Soil and Plant's Leaves around an Oil Refinery: A Case Study from Saudi Arabia

    Directory of Open Access Journals (Sweden)

    M. O. Al-Jahdali

    2008-01-01

    Full Text Available The accumulative levels of SO2 in soil and plant's leaves around an oil refinery were monitored. Four different sites around the refinery area were chosen; west, south east, north east and the northern side. The refinery southern side was not accessible. In addition to the soil samples, leaves samples of the dominant plants species Myoporum pictum were randomly collected from all sites. Highly significant levels of sulfate were found in soil and plant leaves samples at all sites compared to the control. The highest level of sulfate in soil (9,000 ± 1200 µg g-1 and plant's leaves (65,774 ± 320 µg g-1 were found in the southern east side. This high content of sulfate indicates high levels of air contamination with SO2 around the refinery which negatively effects the environment and public health at this populated area.

  18. Distribution and Transmission of Medicinal Plant Knowledge in the Andean Highlands: A Case Study from Peru and Bolivia

    Directory of Open Access Journals (Sweden)

    Sarah-Lan Mathez-Stiefel

    2012-01-01

    Full Text Available This paper presents a study of patterns in the distribution and transmission of medicinal plant knowledge in rural Andean communities in Peru and Bolivia. Interviews and freelisting exercises were conducted with 18 households at each study site. The amount of medicinal plant knowledge of households was compared in relation to their socioeconomic characteristics. Cluster analysis was applied to identify households that possessed similar knowledge. The different modes of knowledge transmission were also assessed. Our study shows that while the amount of plant knowledge is determined by individual motivation and experience, the type of knowledge is influenced by the community of residence, age, migratory activity, and market integration. Plant knowledge was equally transmitted vertically and horizontally, which indicates that it is first acquired within the family but then undergoes transformations as a result of subsequent contacts with other knowledge sources, including age peers.

  19. Problems of pricing fresh water obtained from a sea water desalination plant; Problemes de tarification de l'eau douce obtenue a partir d'une installation de dessalement d'eau de mer

    Energy Technology Data Exchange (ETDEWEB)

    Gaussens, J. [Commissariat a l' Energie Atomique, (France). Centre d' Etudes Nucleaires

    1967-07-01

    Integrating a double-purpose desalination and electricity generating plant into a water supply system alters the conditions in which the other water and electricity sources are used, as the peak and the base load water and electricity demands have to be met at the least cost. This paper attempts to show how the problem of determining optimal water supply structures can be approached, in definite cases, but against a global economic back-ground. It becomes necessary to define the competition between classical resources and desalination plants, as these plants introduce into optimum studies new factors due to the peculiar shape of their production functions. These new factors (fixed and proportional costs structures, flow availabilities) are studied in relation to the production functions in various management cases (private monopoly, public monopoly). (author) [French] L'intervention d'une installation egalement productrice d'energie electrique dans l'alimentation en eau d'une zone modifie les conditions d'utilisation des autres ressources en eau et en electricite, compte tenu de la necessite d'assurer les pointes et la base des diagrammes de demande d'eau et d'electricite au moindre cout. Cet expose se propose de montrer comment on peut approcher le probleme de la determination des structures optimales d'approvisionnement en eau pour des cas precis, mais dans un cadre economique global, II devient en effet necessaire de situer la competition: ressources classiques/installation de dessalement; ces dernieres introduisent, dans les etudes d'optimum, des elements nouveaux dus a la forme particuliere de leurs fonctions de production. On etudie ces elements nouveaux (structures des couts fixes et des couts proportionnels, disponibilite des debits) en liaison avec les fonctions de production dans divers cas de gestion (monopole prive, monopole public). (auteur)

  20. Status and ethno-medicinal usage of invasive plants in traditional health care practices: a case study from northeastern Bangladesh

    Institute of Scientific and Technical Information of China (English)

    Mohammed Abu Sayed Arfin Khan; Fahmida Sultana; Md. Habibur Rahman; Bishwajit Roy; Sawon Istiak Anik

    2011-01-01

    Species diversity and ethno-medicinal usage of 39 species of invasive plants were explored in and around two protected areas,Khadinmagar National Park (KNP) and Rema-Kalenga Wildlife Sanctuary (RKWS),of northeastern Bangladesh,.Status of invasive plants were investigated in 60 sample plots with 5 different habitat types,including forest,roadside,homestead,fallow land and others (ponds,canals,water logged areas,agricultural land,etc.).Data about the usage of invasive plants in traditional health care were collected through interviewing 110 households.Among the five habitat types,fallow land (28 species) possessed the highest number of species,followed by roadside (25 species),forest (23 species),homestead (22 species) and others (13 species).Based on the survey,invasive plants of study areas were also categorized into five degrees of invasiveness e.g.,naturalized,introduced,possibly invasive,moderately invasive and highly invasive.Additionally,there is the linear trend between degrees of invasiveness and use percentage of invasive plants.Total 39 species of invasive plants belonging to 29 families were recorded,which are generally used to treat 37 diseases,ranging from simple headache to highly complicated eye and heart diseases.The majority of the species used by the local inhabitants were herbs (16 species),followed by some shrubs (11 species),climbers (5 species),trees (5 species) and grasses (2 species).The use percentage of aboveground plant parts were higher (70.58%) than that of underground plant parts (16.18%).

  1. Economic Analysis of Biomass Supply Chains: A Case Study of Four Competing Bioenergy Power Plants in Northwestern Ontario

    OpenAIRE

    Md. Bedarul Alam; Reino Pulkki; Chander Shahi; Thakur Prasad Upadhyay

    2012-01-01

    Supply chain optimization for biomass-based power plants is an important research area due to greater emphasis on green energy sources. This paper develops and applies two optimization models to analyze the impacts of biomass competition on cost structures and gross margins for four competing biomass-based power plants in northwestern Ontario. Model scenarios are run to study the impacts of changes in parameters relevant to biomass type and processing technology, and prices of inputs and outp...

  2. Transformation of traditional knowledge of medicinal plants: the case of Tyroleans (Austria) who migrated to Australia, Brazil and Peru

    OpenAIRE

    Pirker Heidemarie; Haselmair Ruth; Kuhn Elisabeth; Schunko Christoph; Vogl Christian R

    2012-01-01

    Abstract Background In ethnobotanical research, the investigation into traditional knowledge of medicinal plants in the context of migration has been of increasing interest in recent decades since it is influenced and changed by new environmental and social conditions. It most likely undergoes transformation processes to match the different living circumstances in the new location. This study compares the traditional knowledge of medicinal plants held by Tyroleans – and their descendants – wh...

  3. Sustainable utilization and conservation of plant biodiversity in montane ecosystems: the western Himalayas as a case study

    Science.gov (United States)

    Khan, Shujaul Mulk; Page, Sue E.; Ahmad, Habib; Harper, David M.

    2013-01-01

    Background Conservation of the unique biodiversity of mountain ecosystems needs trans-disciplinary approaches to succeed in a crowded colloquial world. Geographers, conservationists, ecologists and social scientists have, in the past, had the same conservation goals but have tended to work independently. In this review, the need to integrate different conservation criteria and methodologies is discussed. New criteria are offered for prioritizing species and habitats for conservation in montane ecosystems that combine both ecological and social data. Scope Ecological attributes of plant species, analysed through robust community statistical packages, provide unbiased classifications of species assemblages and environmental biodiversity gradients and yield importance value indices (IVIs). Surveys of local communities’ utilization of the vegetation provides use values (UVs). This review suggests a new means of assessing anthropogenic pressure on plant biodiversity at both species and community levels by integrating IVI and UV data sets in a combined analysis. Conclusions Mountain ecosystems are hot spots for plant conservation efforts because they hold a high overall plant diversity as communities replace each other along altitudinal and climatic gradients, including a high proportion of endemic species. This review contributes an enhanced understanding of (1) plant diversity in mountain ecosystems with special reference to the western Himalayas; (2) ethnobotanical and ecosystem service values of mountain vegetation within the context of anthropogenic impacts; and (3) local and regional plant conservation strategies and priorities. PMID:23825353

  4. Plant-based strategies aimed at expressing HIV antigens and neutralizing antibodies at high levels. Nef as a case study.

    Science.gov (United States)

    Marusic, Carla; Vitale, Alessandro; Pedrazzini, Emanuela; Donini, Marcello; Frigerio, Lorenzo; Bock, Ralph; Dix, Philip J; McCabe, Matthew S; Bellucci, Michele; Benvenuto, Eugenio

    2009-08-01

    The first evidence that plants represent a valid, safe and cost-effective alternative to traditional expression systems for large-scale production of antigens and antibodies was described more than 10 years ago. Since then, considerable improvements have been made to increase the yield of plant-produced proteins. These include the use of signal sequences to target proteins to different cellular compartments, plastid transformation to achieve high transgene dosage, codon usage optimization to boost gene expression, and protein fusions to improve recombinant protein stability and accumulation. Thus, several HIV/SIV antigens and neutralizing anti-HIV antibodies have recently been successfully expressed in plants by stable nuclear or plastid transformation, and by transient expression systems based on plant virus vectors or Agrobacterium-mediated infection. The current article gives an overview of plant expressed HIV antigens and antibodies and provides an account of the use of different strategies aimed at increasing the expression of the accessory multifunctional HIV-1 Nef protein in transgenic plants.

  5. The Assessment of Water Treatment Plant Sludge Properties and the Feasibility of Its Re-use according to Environmental Standards: Shahid Beheshti Water Treatment Plant Case Study, Hamadan

    Directory of Open Access Journals (Sweden)

    H. Pourmand

    2016-04-01

    Full Text Available Introduction & Objectives: Water treatment leads to produce large volumes of sludges in water treatment plants which are considered as solid waste, and should be managed appropriately and logically to avoid bioenvironmental effects. Materials & Methods: In this cross-sectional study, the required samples were taken from the sludge of Shahid Beheshti water treatment plant to assay physical and chemical characteristics during one year from summer, autumn and winter 93 until spring 94. Sampling and testing procedures were full fit according to standard methods. Results: The average concentration of total solids parameters (TSS, total suspended solids (TSS, and total dissolved solids (TDS were 22346, 21350 and 1005 mg/L, respectively. Among the heavy metals, aluminum, iron, manganese and zinc have the highest concentrations with the values of 1400, 956, 588 and 100 mg per kg of dry solids, respectively. The measured concentrations for cadmium were also higher than the permissible limits for agricultural purposes and discharges into the environment. The average concentrations of nickel were more than the recommended standard for industrial, agricultural and parkland application purposes. The concentrations were also slurry higher than the dry sludge. Conclusion: According to the past studies and results of this study, it could be concluded that contamination of heavy metals in sludge and slurry samples are more than dried sludge, .Therefore, if they are discharged into the environment, it is better to be disposed as dry sludges. Furthermore, because these types of waste sludges are routinely disposed in the environment, it is recommended to take the routine samples in order to measure the heavy metals and other relevant parameters contents of sludge before discharging it. (Sci J Hamadan Univ Med Sci 2016; 23 (1:57-64

  6. DNA barcoding for species identification from dried and powdered plant parts: a case study with authentication of the raw drug market samples of Sida cordifolia.

    Science.gov (United States)

    Vassou, Sophie Lorraine; Kusuma, G; Parani, Madasamy

    2015-03-15

    The majority of the plant materials used in herbal medicine is procured from the markets in the form of dried or powdered plant parts. It is essential to use authentic plant materials to derive the benefits of herbal medicine. However, establishing the identity of these plant materials by conventional taxonomy is extremely difficult. Here we report a case study in which the species identification of the market samples of Sida cordifolia was done by DNA barcoding. As a prelude to species identification by DNA barcoding, 13 species of Sida were collected, and a reference DNA barcode library was developed using rbcL, matK, psbA-trnH and ITS2 markers. Based on the intra-species and inter-species divergence observed, psbA-trnH and ITS2 were found to be the best two-marker combination for species identification of the market samples. The study showed that none of the market samples belonged to the authentic species, S. cordifolia. Seventy-six per cent of the market samples belonged to other species of Sida. The predominant one was Sida acuta (36%) followed by S. spinosa (20%), S. alnifolia (12%), S. scabrida (4%) and S. ravii (4%). Such substitutions may not only fail to give the expected therapeutic effect, but may also give undesirable effects as in case of S. acuta which contains a 6-fold higher amount of ephedrine compared to the roots of S. cordifolia. The remaining 24% of the samples were from other genera such as Abutilon sp. (8%), Ixonanthes sp., Terminalia sp., Fagonia sp., and Tephrosia sp. (4% each). This observation is in contrast to the belief that medicinal plants are generally substituted or adulterated with closely related species. The current study strongly suggests that the raw drug market samples of herbal medicines need to be properly authenticated before use, and DNA barcoding has been found to be suitable for this purpose. Copyright © 2015 Elsevier B.V. All rights reserved.

  7. Performance evaluation of reverse osmosis desalination plants for rural water supply in a developing country--a case study.

    Science.gov (United States)

    Kelkar, P S; Joshi, V A; Ansari, M H; Manivel, U

    2003-12-01

    Performance evaluation of two reverse osmosis (RO) desalination plants (DSP) at villages: Melasirupodhu (30 m3 day(-1)) and Sikkal (50 m3 day(-1)) in Ramanathpuram district, Tamil Nadu (India) were studied so as to bring out the state-of-art of their operation and maintenance (O&M). Detailed information on plant design and engineering, water quality, plant personnel, and cost of O&M was collected for a period of three years after commissioning of the two plants. Feed water was brackish, the TDS varied in the range of 6500-8500 mg L(-1) at Melasirupodhu and 5300-7100 mg L(-1) at Sikkal villages. The product water quality was observed to be gradually deteriorating as the salt rejection by the membranes decreased with time. The salt rejection was 97-99% at the time of commissioning of the plants, and came down to 89-90% at the end of 3 years of operation. Product water TDS soon after installation of the plants was excellent and within desirable limits of BIS. After three years of operation, few parameters exceeded the desirable limits, however, they were found to be within permissible limits of BIS. The analyses of the data showed that both plants were operated only at 30-36% of the design capacity. Plant shut-down due to inadequate and erratic power supply, and plant break-down and inherent delay in repairs due to lack of adequate infrastructure were found to be the major causes for the low utilization of the plants. Consequently the recurring cost of product water production enhanced to Rs. 25.0/m3 at Melasirupodhu and Rs. 17.5 m(-3) at Sikkal, as against the estimated cost of Rs. 15.0/m3 and Rs. 11.0/m3, respectively, as per the design. Over the years, the energy consumption for the product water output increased reflecting higher operational pressures needed with the aging of the membranes.

  8. Health risks resulting from contaminants transfers in soil-plants systems: case study of Atrazine in Lactuca sativa.

    Science.gov (United States)

    Mathieu, Camoin

    2015-04-01

    Food safety is presently at the center of great part of scientific and political debates. This represents a field of study in its own right of health risks, including ingestion by humans of hazardous biological, physical, chemical or radiological substances, from contaminated foods during different stages of production. Plant cultivation step is often one of the main sources of contamination, whether of voluntary (pesticide application) or accidental (nuclear, industrial waste, etc.) origin. As a result, the plants growth in an contaminated environment may increase the risk of transfer within the plant, and finally the exposure of humans. Furthermore, pesticides are among the main contaminants investigated in the frame of human health risks resulting from food intakes. However, most of these scientific works focus mainly on their occurrence and persistence in water bodies, and few of them are interested in soil/plants transfer. In this context, the understanding of the processes governing transfers of pesticides in plants is become a necessity, in particular to prevent human risks linked the ingestion of food produced in contaminated environments. This objective can be reached by studying the pollutants behavior in soils/plants transfers, and using various substances/plants couples. In our study, we selected a salad/pesticide couple as our experimental model. Atrazine was chosen as model contaminant because of its problematic presence in a large amount of environmental compartments, its physico-chemical properties and because of its long-term toxicity. Lactuca sativa has been selected as model plant because of its importance in French agriculture, and specifically in Languedoc-Roussillon. Salad has been cultivated in peats and irrigated with an atrazine spiked water solution (concentrations from 10 to 100 μg/L). Plant growth in such conditions has been compared to a growth in clean condition (irrigation with non spiked water). Measurements of atrazine contents in

  9. Enhancing sediment distribution at the vicinity of power plant intakes using double rows of vanes and groins (Case study: New tebbin power plant

    Directory of Open Access Journals (Sweden)

    Sayed Mahgoub

    2013-12-01

    The study results showed that, in case of vanes absence, sediments with rates 1–2 m3/week were stuck within the sediment trap under the winter conditions. Also, the results indicated that the submerged vanes play an important role in preventing the sediment intrusion. Also, it was clear that using groins might lead to enhancing the sediment distribution at the intake vicinity.

  10. Hibridación de fuentes de energía renovables no gestionables con sistemas de almacenamiento distribuido de aire comprimido o licuado

    OpenAIRE

    Soto Pérez, Fernando

    2016-01-01

    Esta Tesis tiene por objeto el estudio del almacenamiento en forma de aire (comprimido o licuado) de la electricidad generada mediante energía renovable no gestionable y que no se puede verter a la red por razones técnicas o de saturación. El interés de diferir la entrega de energía a la red, también se vincula a motivos económicos, al posibilitar la venta del kWh a un precio más alto. Con este fin, se ha considerado la posibilidad de utilizar un sistema de almacenamiento artificial que ...

  11. Finance computationnelle et gestion des risques ingénierie financière avec applications Excel (Visual Basic) et Matlab

    CERN Document Server

    Racicot, François-Éric

    2006-01-01

    Ce manuel propose un exposé rigoureux de la gestion des risques en finance. Les aspects théoriques de la question sont abordés par des démonstrations claires et des rappels élaborés des bases mathématiques de la finance computationnelle. Le texte est émaillé de nombreux programmes écrits en langages Visual Basic (Excel), Matlab et EViews qui prépareront l'étudiant à sa carrière de spécialiste en ingénierie financière.

  12. Gestion des externalités environnementales dans le bassin minier du Nord – Pas de Calais : une approche en termes de proximité

    OpenAIRE

    Gwénaël Letombe; Bertrand Zuindeau

    2006-01-01

    Cet article a pour objet l’application des catégories conceptuelles de la proximité à la problématique de gestion des externalités environnementales. Le cas d’étude est celui d’une zone d’ancienne industrialisation en reconversion – le bassin minier du Nord – Pas de Calais – soumise à un passif environnemental spécifique. Nous tentons de montrer que l’incertitude inhérente aux externalités induit, en premier lieu, une certaine faiblesse des proximités organisées, puis la construction de forme...

  13. Stratégie, choix et mise en oeuvre d'un système de gestion électronique de documents (GED)

    OpenAIRE

    Goncalves, Marcio; Ceillier, Thierry

    2010-01-01

    De nos jours, une entreprise est soumise à un flot d’informations continues plus ou moins important. Sur ce lot d’information, il faut savoir conserver l’information importante, la stocker et pouvoir la retrouver facilement et rapidement. Les outils de Gestion Electronique de Documents (GED) sont des solutions à cette problématique à laquelle les entreprises sont confrontées, d’autant plus si ces dernières font de l’EBuisness. Le but de ce rapport n’est pas de fournir une solution clef en mai...

  14. Optimisation de tournée de véhicules avec gestion de stock dans le cadre de la logistique en boucle

    OpenAIRE

    Iassinovskaia, Galina; RIANE, FOUAD; SIL

    2011-01-01

    De plus en plus d’entreprises utilisent des ressources réutilisables pour le transport et la manutention de marchandises (RTI : Returnable Transport Item) comme les palettes, les containers pour des raisons économiques et environnementales. Ces ressources circulent au sein d’une chaîne logistique en boucle et leur gestion influence la performance sur l’ensemble de la chaîne. Dans cet article, nous nous intéresserons particulièrement au problème d’optimisation de tournée de véhicules avec gest...

  15. Approche comparée de quelques évolutions de la gestion du risque en France à travers l’organisation des agences

    Directory of Open Access Journals (Sweden)

    Hubert Philippe

    2000-09-01

    Full Text Available L’organisation nationale en matière d’évaluation et de gestion des risques est en cours de modifications depuis quelques années. Organisée par une loi en 1998, la création d’agences pour la sécurité sanitaire des aliments, des produits de santé et de l’environnement a marqué une étape. D’autres domaines sont en cours de réorganisation comme la sûreté nucléaire et la radioprotection. La mise en oeuvre de la directive SEVESO II peut aussi influer sur la gestion des installations industrielles classées dites « SEVESO ». Des « événements » comme la crise de la vache folle ou celle du sang contaminé ont joué un rôle dans les évolutions, mais l’émergence de nouveaux principes de gestion des risques au sein de la communauté internationale a aussi influé fortement sur les choix faits et les discussions. Le travail présenté ici est un travail préliminaire, qui visait à identifier les grandes lignes des réponses apportées dans les différents domaines à des questions comme celles du rôle des différentes institutions en matière d’évaluation et de gestion. L’approche comparative suivie ici est trop globale pour que tous les éléments de chaque système réglementaire soit décrit et certains aspects sont simplifiés. En revanche, ce type de comparaison met en lumière des contrastes notables quant aux solutions trouvées pour articuler le travail d’évaluation des risques et les prises de décision relevant des autorités.

  16. Gestion des ressources hydriques adaptee aux changements climatiques pour la production optimale d'hydroelectricite. Etude de cas: Bassin versant de la riviere Manicouagan

    Science.gov (United States)

    Haguma, Didier

    Il est dorenavant etabli que les changements climatiques auront des repercussions sur les ressources en eau. La situation est preoccupante pour le secteur de production d'energie hydroelectrique, car l'eau constitue le moteur pour generer cette forme d'energie. Il sera important d'adapter les regles de gestion et/ou les installations des systemes hydriques, afin de minimiser les impacts negatifs et/ou pour capitaliser sur les retombees positives que les changements climatiques pourront apporter. Les travaux de la presente recherche s'interessent au developpement d'une methode de gestion des systemes hydriques qui tient compte des projections climatiques pour mieux anticiper les impacts de l'evolution du climat sur la production d'hydroelectricite et d'etablir des strategies d'adaptation aux changements climatiques. Le domaine d'etude est le bassin versant de la riviere Manicouagan situe dans la partie centrale du Quebec. Une nouvelle approche d'optimisation des ressources hydriques dans le contexte des changements climatiques est proposee. L'approche traite le probleme de la saisonnalite et de la non-stationnarite du climat d'une maniere explicite pour representer l'incertitude rattachee a un ensemble des projections climatiques. Cette approche permet d'integrer les projections climatiques dans le probleme d'optimisation des ressources en eau pour une gestion a long terme des systemes hydriques et de developper des strategies d'adaptation de ces systemes aux changements climatiques. Les resultats montrent que les impacts des changements climatiques sur le regime hydrologique du bassin de la riviere Manicouagan seraient le devancement et l'attenuation de la crue printaniere et l'augmentation du volume annuel d'apports. L'adaptation des regles de gestion du systeme hydrique engendrerait une hausse de la production hydroelectrique. Neanmoins, une perte de la performance des installations existantes du systeme hydrique serait observee a cause de l'augmentation des

  17. Nuclear technology and knowledge management in radioprotection; Tecnologia nuclear y gestion del conocimiento en Radioproteccion

    Energy Technology Data Exchange (ETDEWEB)

    Alonso, A.

    2007-07-01

    The cycle of life of nuclear power plant expands along seven well defined phases lasting about a century and therefore employing three successive generations. Each one of such phases is in need of specific knowledge on radiation protection matters. The nuclear moratorium introduced in Spain in 1983 suspended all those activities related to site selection, design and construction of new units and their commissioning. As it does not seem to be prudent to renounce to nuclear energy on a permanent basis, nuclear utilities, engineering and service companies, academic, research and state organizations agencies should establish programmes to recuperate the radiological knowledge and experience, among other subjects, acquired in the interrupted activities. Likewise, those responsible for the operation of nuclear power plants and the follow up activities should also establish knowledge management activities on radiation protection and other subject matters in line with the IAEA recommendations. (Author) 19 refs.

  18. SGDes project. Decommissioning management system of Enresa; Proyecto SGDes. Sistema de Gestion de Desmantelamiento de Enresa

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez Lopez, M.; Julian, A. de

    2013-03-01

    ENRESA, the public company responsible for managing radioactive waste produced in spain and nuclear facilities decommissioning work, has developed a management information system (SGDes) for the decommissioning of nuclear power plants, critical for the company. SGDes system is capable of responding to operational needs for efficient, controlled and secure way. Dismantling activities require a rigorous operations control within highly specialized, process systematization and safety framework, both the human and technological point of view. (Author)

  19. SGDES: Management system dismantling of ENRESA; SGDES: Sistema de gestion de desmantelamiento de ENRESA

    Energy Technology Data Exchange (ETDEWEB)

    Julian, A. de; Fernandez, M.; Vidaechea, S.

    2013-07-01

    ENRESA, the Spanish public company responsible for managing radioactive waste and nuclear facilities decommissioning, has developed a management information system (SGDES) for the decommissioning of nuclear power plants. Dismantling activities require a rigorous operations control within highly specialized, process systematization and safety framework, both under human and technological point of view. SGDES system is capable of responding to the mentioned operational needs, efficiently and safely.

  20. Benchmarking on the management of radioactive waste; Benchmarking sobre la gestion de los residuos radiactivos

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Gomez, M. a.; Gonzalez Gandal, R.; Gomez Castano, N.

    2013-09-01

    In this project, an evaluation of the practices carried out in the waste management field at the Spanish nuclear power plants has been done following the Benchmarking methodology. This process has allowed the identification of aspects to improve waste treatment processes; to reduce the volume of waste; to reduce management costs and to establish ways of management for the waste stream which do not have. (Author)

  1. Plant occurrence on burning coal waste – a case study from the Katowice-Wełnowiec dump, Poland

    Directory of Open Access Journals (Sweden)

    Ciesielczuk Justyna

    2015-06-01

    Full Text Available Coal-waste dumps superimposed on former rubbish dump frequently undergo selfheating and selfignition of organic matter dispersed in the waste. The special conditions for plant growth generated as a result have been investigated since 2008 on the municipal dump reclaimed with coal wastes in Katowice-Wełnowiec, Poland. The plants observed most frequently where heating has occurred are Sisymbrium loeselii, Artemisia vulgaris, Sonchus arvensis, Chenopodium album, Achillea millefolium, Cirsium arvense, Amaranthus retroflexus, Atriplex nitens and Solanum nigrum. Some new, rare species such as Portulaca oleracea, first noticed in 2011, may be added. Most of encroaching species are annual, alien archeophytes and neophytes. Native species are mainly perennials. The majority of these species show a tendency to form specimens of huge size (gigantism. The abundance of emitted CO2 and nitrogen compounds is the likely cause of this. Additionally, the plants growing there are not attacked by insects. The heating of the ground liquidates the natural seed bank. After cooling, these places are seeded by species providing seeds at that very moment (pioneer species. Heated places on the dumps allow plant growth even in the middle of winter. As the seasonal vegetation cycle is disturbed, plants may be found seeding, blooming and fruiting at the same time.

  2. Bioindication of heavy metals with aquatic macrophytes: the case of a stream polluted with power plant sewages in Poland.

    Science.gov (United States)

    Samecka-Cymerman, A; Kempers, A J

    2001-01-12

    The Kozi Brod (left tributary of the Biala Przemsza, east of Katowice) flows in a highly industrial coal-mining area dominated by the power plant of Siersza. Concentrations of the microelements nickel (Ni), chromium (Cr), cobalt (Co), zinc (Zn), manganese (Mn), lead (Pb), cadmium (Cd), copper (Cu), barium (Ba), aluminum (Al), vanadium (V), and strontium (Sr), as well as the macronutrients nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), and sulfur (S), were measured in water and plants of the Kozi Brod. The collected plants were: Myosotis palustris L. Nathorst, Galium palustre L., Mentha rotundifolia L. Huds., Mentha aquatica L., Berula erecta (Huds.) Coville, Cardamine amara L., Epilobium angustifolium L., Geranium palustre L., Lysimachia vulgaris L., Crepis paludosa L. Much., Calitriche verna L., Solanum dulcamara L., and the aquatic moss Hygrohypnum ochraceum (Turn.) Loesk. These plants were used to evaluate the spatial distribution of elements in the Kozi Brod and contained elevated levels of Co, Cd, Zn, Ni, Mn, Al, Pb, and Cu. Significant correlations between concentrations of Cd, Zn, and Mn in water and plants indicate the potential of these species for pollution monitoring.

  3. The Factors of Local Energy Transition in the Seoul Metropolitan Government: The Case of Mini-PV Plants

    Directory of Open Access Journals (Sweden)

    Jae-Seung Lee

    2017-03-01

    Full Text Available As a way of enhancing urban sustainability, Seoul Special City, the capital of South Korea, has shown strong enthusiasm for urban energy transition by tackling climate change and expanding renewable energy. The Seoul Metropolitan Government (SMG has adopted the “One Less Nuclear Power Plant (OLNPP” strategy since April 2012 and specific policy measures, including a mini-photovoltaic (PV plant program, were introduced to facilitate the energy transition. However, varying degrees of success were achieved by 25 district-level local governments (Gu with mini-PV plant programs. This study explored the reason why those local governments showed different levels of performance despite the strong will of municipal government (SMG to implement urban energy transitions through the mini-PV plant program. The tested hypotheses were based on capacity, political context, public awareness and geographical diffusion. The findings indicated that institutional capacity, financial dependence, political orientation and public perception had positively affected the performance of mini-PV plant installation at each district level. Especially, the political will of each district mayor played an important role in the implementation of the policy.

  4. A clustering approach for the analysis of solar energy yields: A case study for concentrating solar thermal power plants

    Science.gov (United States)

    Peruchena, Carlos M. Fernández; García-Barberena, Javier; Guisado, María Vicenta; Gastón, Martín

    2016-05-01

    The design of Concentrating Solar Thermal Power (CSTP) systems requires a detailed knowledge of the dynamic behavior of the meteorology at the site of interest. Meteorological series are often condensed into one representative year with the aim of data volume reduction and speeding-up of energy system simulations, defined as Typical Meteorological Year (TMY). This approach seems to be appropriate for rather detailed simulations of a specific plant; however, in previous stages of the design of a power plant, especially during the optimization of the large number of plant parameters before a final design is reached, a huge number of simulations are needed. Even with today's technology, the computational effort to simulate solar energy system performance with one year of data at high frequency (as 1-min) may become colossal if a multivariable optimization has to be performed. This work presents a simple and efficient methodology for selecting number of individual days able to represent the electrical production of the plant throughout the complete year. To achieve this objective, a new procedure for determining a reduced set of typical weather data in order to evaluate the long-term performance of a solar energy system is proposed. The proposed methodology is based on cluster analysis and permits to drastically reduce computational effort related to the calculation of a CSTP plant energy yield by simulating a reduced number of days from a high frequency TMY.

  5. History and conservation of wild and cultivated plant diversity in Uganda: Forest species and banana varieties as case studies

    Directory of Open Access Journals (Sweden)

    Alan C. Hamilton

    2016-02-01

    Full Text Available The history of wild and cultivated plant diversity in Uganda is reviewed, taking forest species and bananas as examples. Palynological research into past human influences on forests is reassessed. The evidence suggests that crops were first introduced into the country at about 1000 BCE, farming communities practicing slash and burn agriculture started to significantly influence the floristic composition of forests during the 1st millennium BCE and there was a major episode of forest reduction at about 1000 CE related to socio-economic change. Bananas were probably introduced in the early centuries CE. The colonial era from 1894 saw the introduction of new concepts of land ownership and the establishment of forest reserves and agricultural stations. Forests and banana diversity are currently under threat, Uganda having a very high rate of deforestation and endemic banana varieties proving susceptible to introduced pests and diseases. It is suggested that, under these circumstances, conservationists take an opportunistic approach to field engagement, making use of favourable local conditions as they arise. Partnerships should be sought with elements of society concerned with sustainable use, provision of ecosystem services and cultural survival to widen the social base of plant conservation. International organisations involved in conservation of plant genetic resources and wild plant species should collaborate with one another to develop the conceptual basis of plant conservation, to make it more relevant to countries like Uganda.

  6. A study of arsenic speciation in soil, irrigation water and plant tissue: A case study of the broad bean plant, Vicia faba.

    Science.gov (United States)

    Sadee, Bashdar A; Foulkes, Mike E; Hill, Steve J

    2016-11-01

    Samples of soil, the broad bean plant, Vicia faba and irrigation water were collected from the same agricultural site in Dokan, in the Kurdistan region of Iraq. Total arsenic and arsenic speciation were determined in all materials by ICP-MS and HPLC-ICP-MS, respectively. Available arsenic (11%) was also determined within the soil, together with Cd, Cr, Cu, Ni, Zn, Fe and Mn. The concentrations of total arsenic were: soil (5.32μgg(-1)), irrigation water (1.06μgL(-1)), roots (2.065μgg(-1)) and bean (0.133μgg(-1)). Stems, leaves and pods were also measured. Inorganic As(V) dominated soil (90%) and root (78%) samples. However, organo-arsenic (MMA, 48% and DMA, 19%) was the more dominant species in the edible bean. The study provides an insight into the uptake, preferred disposal route, speciation changes and loss mechanism involved for arsenic with this food source. Copyright © 2016. Published by Elsevier Ltd.

  7. PERCEPTION OF THEATTRIBUTES OF A PROFESSIONAL OF INNOVATION BY OPERATION AND MAINTENANCE OF A THERMAL POWER PLANT: A CASE FOR TECHNOLOGY TRANSFER TO FOCUS ON END USERS

    Directory of Open Access Journals (Sweden)

    Fabricio Baron Mussi

    2013-01-01

    Full Text Available To attend Brazil‘s energy demands, considering the typical seasonality of Brazilian climates conditions, part of the energy available in the national electrical system has been generated from natural gas power plant (in the most recent years. This paper analyses a case of technology transfer with focus on end-users, observing theirs perception in relation to attributes of technological tool installed, a control and monitoring system. The case, developed in a thermoelectric power plant, has four organizations participants: the thermoelectric power plant that bought the technology, the company that will operate with the new technology, a research institution that helped out on the selection process and adjustments of technological tool to local necessities and the international supplier of the technology. This work used qualitative and quantitative methodology to arrive its purpose. Between the findings, there are some differences on perception of attributes for some users groups. Given the relevance of technological tool acquired, it‘s possible that communications actions and technical trainings would be necessaries to ensure that users know all the functionalities of new system, its advantages in relation to previous system and its compatibility with power plant‘s technical process. The technological dependency of foreign companies and necessities of adjustments to schedule of technological tool installation contributed for a partial transference of the technology observed, demanding future researches to check the overcoming of these limitations.

  8. Accumulation of microcystin congeners in different aquatic plants and crops--a case study from lake Amatitlán, Guatemala.

    Science.gov (United States)

    Romero-Oliva, Claudia Suseth; Contardo-Jara, Valeska; Block, Tobias; Pflugmacher, Stephan

    2014-04-01

    Microcystins (MCs) fate in natural environments can lead to its transfer into aquatic organisms, e.g. aquatic plants. Moreover, lakes in several countries sustain agriculture activities posing a serious health threat for the public. The case of Lake Amatitlán in Guatemala, was addressed to better understand MCs accumulation of four aquatic plants (Polygonum portoricensis, Eichhornia crassipes, Typha sp. and Hydrilla verticillata) coexisting with Microcystis aeruginosa blooms. These findings were further corroborated with an uptake/accumulation laboratory study. Finally crop products (Solanum lycopersicum and Capsicum annuum) irrigated with lake water were also evaluated for MCs. The obtained results suggest that Lake Amatitlán is highly contaminated with MCs (intra- and extracellular 1931 and 90 µg/L, respectively). In fruits of S. lycopersicum and C. annuum a concentration of 1.16 and 1.03 µg/kg dry weight (DW), respectively could be detected. All four aquatic plants showed a high MCs uptake capacity based on obtained bioconcentration factors (BCF) 165, 18, 16 and 11, respectively. These results were further corroborated in a laboratory study with 30 percent of total MCs taken up by H. verticillata within just 7 days. Additionally it was evidenced that all plants accumulated more MC-LR than other MCs congeners. Monitoring of crop products irrigated with lake water needs further consideration.

  9. Using ProModel as a simulation tools to assist plant layout design and planning: Case study plastic packaging factory

    Directory of Open Access Journals (Sweden)

    Pochamarn Tearwattanarattikal

    2008-01-01

    Full Text Available This study is about the application of a Simulation Model to assist decision making on expanding capacity and plant layout design and planning. The plant layout design concept is performed first to create the physical layouts then the simulation model used to test the capability of plant to meet various demand forecast scena. The study employed ProModel package as a tool, using the model to compare the performances in term of % utilization, characteristics of WIP and ability to meet due date. The verification and validation stages were perform before running the scenarios. The model runs daily production and then the capacity constraint resources defined by % utilization. The expanding capacity policy can be extra shift-working hours or increasing the number of machines. After expanding capacity solutions are found, the physical layout is selected based on the criterion of space available for WIP and easy flow of material.

  10. Evaluation Indicator System of Low-carbon Landscape in Residential Areas: A Case Study of Garden Plant Landscape

    Institute of Scientific and Technical Information of China (English)

    Xiaogang; CHEN; Qi; LUO

    2013-01-01

    Garden plant landscape is one of the main contents of low-carbon landscape design in residential areas. From the basic theory of garden plant landscaping, we put forth five principles and ideas concerning the building of evaluation indicator system of garden plant landscape, to establish the indicator system with ecological quality, recreational function and aesthetic effect as three layers. According to the characteristics of evaluation system, we use qualitative and quantitative integration method, coupled with analytic hierarchy process (AHP) and expert consulting method, to determine the weight of various factors. And we use fuzzy comprehensive evaluation method to test this indicator system, so as to provide a theoretical basis for the research on evaluation indicator system of low-carbon landscape.

  11. Evaluation of plant performance of Jatropha curcas L. under different agro-practices for optimizing biomass - A case study

    Energy Technology Data Exchange (ETDEWEB)

    Behera, Soumit K.; Srivastava, Pankaj; Singh, Nandita [National Botanical Research Institute, CSIR, Rana Pratap Marg, Lucknow 226001, UP (India); Tripathi, Ritu; Singh, J.P. [Solar Energy Centre, Ministry of New and Renewable Energy, Gwalpahari, Gurgaon (India)

    2010-01-15

    Jatropha curcas L., a multipurpose, drought resistant, perennial plant belonging to Euphorbiaceae family has gained lot of importance for the production of biodiesel. The properties of the crop and its oil have persuaded investors, policy makers and clean development mechanism (CDM) project developers to consider Jatropha as a substitute for fossil fuels to reduce greenhouse gas emissions. However, basic agronomic properties of Jatropha are not thoroughly understood and the environmental effects have not been investigated yet. Grey literature reports are very optimistic on simultaneous wasteland reclamation capability and oil yields. Studies were undertaken at Solar Energy Centre, Gurgaon, India to evaluate the plant performance under different agro-practices with special reference to irrigation scheduling, VAM and biofertilizers' applications, plant spacing, pruning trials for maximizing tree architecture and higher biomass. Parallel experiments were undertaken to understand the scope of J. curcas for intercropping practices in the under storey of dominating monoculture tree stands (Prosopis, Acacia and Neem). (author)

  12. Use of synchrotron radiation to characterize metals in plants: the case of Cd in the hyperacumulator Arabidopsis halleri

    Science.gov (United States)

    Isaure, M.; Sarret, G.; Verbruggen, N.

    2010-12-01

    Phytoremediation uses plants to extract (phytoextraction) or stabilize (phytostabilization) metals accumulated in soils, and can be an alternative to invasive physico-chemical remediation techniques. Its development requires the knowledge of the mechanisms involved in metal tolerance and accumulation in plants, and particularly the way that plants transfer and store metals. In that context, synchrotron radiation based techniques such as micro-focused X-Ray Fluorescence (µXRF), and micro-focused X-ray Absorption Spectroscopy, including Extended X-ray Absorption Fine Structure and X-ray Absorption Near Edge Structure, are particularly suited to determine the localization and the chemical forms of metals in the different tissues, cells and sub-cellular compartments. Arabidopsis halleri is a Zn, Cd hyperaccumulating plant, naturally growing on contaminated sites, and is a model plant to investigate metal hyperaccumulation. This work presents the application of µXRF and Cd µXANES to determine the distribution and speciation of Cd in this species. Results showed that Cd was mainly located in the mesophyll and veins of leaves. It is bound to S ligands in some leaves and to O/N ligands in other ones, and the observed variations may be related to the age of the leaves. Cd speciation seems to differ from other metals, and particularly Zn, generally encountered in hyperaccumulators. High local Cd concentrations were also detected at the base of trichomes, epidermal hairs of leaves, associated to O/N ligands, probably to the cell wall. This phenomenon was also observed on non-hyperaccumulators and is clearly not the major sink for Cd, but trichomes might play a role in the detoxification process. This study illustrates the suitability of synchrotron radiation based techniques to investigate metal distribution and speciation in plants.

  13. Plant Responses to Climate Change: The Case Study of Betulaceae and Poaceae Pollen Seasons (Northern Italy, Vignola, Emilia-Romagna

    Directory of Open Access Journals (Sweden)

    Anna Maria Mercuri

    2016-12-01

    Full Text Available Aerobiological data have especially demonstrated that there is correlation between climate warming and the pollination season of plants. This paper focuses on airborne pollen monitoring of Betulaceae and Poaceae, two of the main plant groups with anemophilous pollen and allergenic proprieties in Northern Italy. The aim is to investigate plant responses to temperature variations by considering long-term pollen series. The 15-year aerobiological analysis is reported from the monitoring station of Vignola (located near Modena, in the Emilia-Romagna region that had operated in the years 1990–2004 with a Hirst spore trap. The Yearly Pollen Index calculated for these two botanical families has shown contrasting trends in pollen production and release. These trends were well identifiable but fairly variable, depending on both meteorological variables and anthropogenic causes. Based on recent reference literature, we considered that some oscillations in pollen concentration could have been a main effect of temperature variability reflecting global warming. The duration of pollen seasons of Betulaceae and Poaceae, depending on the different species included in each family, has not unequivocally been determined. Phenological responses were particularly evident in Alnus and especially in Corylus as a general moving up of the end of pollination. The study shows that these trees can be affected by global warming more than other, more tolerant, plants. The research can be a contribution to the understanding of phenological plant responses to climate change and suggests that alder and hazelnut trees have to be taken into high consideration as sensible markers of plant responses to climate change.

  14. Plant Responses to Climate Change: The Case Study of Betulaceae and Poaceae Pollen Seasons (Northern Italy, Vignola, Emilia-Romagna)

    Science.gov (United States)

    Mercuri, Anna Maria; Torri, Paola; Fornaciari, Rita; Florenzano, Assunta

    2016-01-01

    Aerobiological data have especially demonstrated that there is correlation between climate warming and the pollination season of plants. This paper focuses on airborne pollen monitoring of Betulaceae and Poaceae, two of the main plant groups with anemophilous pollen and allergenic proprieties in Northern Italy. The aim is to investigate plant responses to temperature variations by considering long-term pollen series. The 15-year aerobiological analysis is reported from the monitoring station of Vignola (located near Modena, in the Emilia-Romagna region) that had operated in the years 1990–2004 with a Hirst spore trap. The Yearly Pollen Index calculated for these two botanical families has shown contrasting trends in pollen production and release. These trends were well identifiable but fairly variable, depending on both meteorological variables and anthropogenic causes. Based on recent reference literature, we considered that some oscillations in pollen concentration could have been a main effect of temperature variability reflecting global warming. The duration of pollen seasons of Betulaceae and Poaceae, depending on the different species included in each family, has not unequivocally been determined. Phenological responses were particularly evident in Alnus and especially in Corylus as a general moving up of the end of pollination. The study shows that these trees can be affected by global warming more than other, more tolerant, plants. The research can be a contribution to the understanding of phenological plant responses to climate change and suggests that alder and hazelnut trees have to be taken into high consideration as sensible markers of plant responses to climate change. PMID:27929423

  15. Influence of deposition of fine plant debris in river floodplain shrubs on flood flow conditions - The Warta River case study

    Science.gov (United States)

    Mazur, Robert; Kałuża, Tomasz; Chmist, Joanna; Walczak, Natalia; Laks, Ireneusz; Strzeliński, Paweł

    2016-08-01

    This paper presents problems caused by organic material transported by flowing water. This material is usually referred to as plant debris or organic debris. Its composition depends on the characteristic of the watercourse. For lowland rivers, the share of the so-called small organic matter in plant debris is considerable. This includes both various parts of water plants and floodplain vegetation (leaves, stems, blades of grass, twigs, etc.). During floods, larger woody debris poses a significant risk to bridges or other water engineering structures. It may cause river jams and may lead to damming of the flowing water. This, in turn, affects flood safety and increases flood risk in river valleys, both directly and indirectly. The importance of fine plant debris for the phenomenon being studied comes down to the hydrodynamic aspect (plant elements carried by water end up on trees and shrubs, increase hydraulic flow resistance and contribute to the nature of flow through vegetated areas changed from micro-to macro-structural). The key part of the research problem under analysis was to determine qualitative and quantitative debris parameters and to establish the relationship between the type of debris and the type of land use of river valleys (crop fields, meadows and forested river sections). Another problem was to identify parameters of plant debris for various flow conditions (e.g. for low, medium and flood flows). The research also included an analysis of the materials deposited on the structure of shrubs under flood flow conditions during the 2010 flood on the Warta River.

  16. Do forest soil microbes have the potential to resist plant invasion? A case study in Dinghushan Biosphere Reserve (South China)

    Science.gov (United States)

    Chen, Bao-Ming; Li, Song; Liao, Hui-Xuan; Peng, Shao-Lin

    2017-05-01

    Successful invaders must overcome biotic resistance, which is defined as the reduction in invasion success caused by the resident community. Soil microbes are an important source of community resistance to plant invasions, and understanding their role in this process requires urgent investigation. Therefore, three forest communities along successional stages and four exotic invasive plant species were selected to test the role of soil microbes of three forest communities in resisting the exotic invasive plant. Our results showed that soil microbes from a monsoon evergreen broadleaf forest (MEBF) (late-successional stage) had the greatest resistance to the invasive plants. Only the invasive species Ipomoea triloba was not sensitive to the three successional forest soils. Mycorrhizal fungi in early successional forest Pinus massonina forest (PMF) or mid-successional forest pine-broadleaf mixed forest (PBMF) soil promoted the growth of Mikania micrantha and Eupatorium catarium, but mycorrhizal fungi in MEBF soil had no significant effects on their growth. Pathogens plus other non-mycorrhizal microbes in MEBF soil inhibited the growth of M. micrantha and E. catarium significantly, and only inhibited root growth of E. catarium when compared with those with mycorrhizal fungi addition. The study suggest that soil mycorrhizal fungi of early-mid-successional forests benefit invasive species M. micrantha and E. catarium, while soil pathogens of late-successional forest may play an important role in resisting M. micrantha and E. catarium. The benefit and resistance of the soil microbes are dependent on invasive species and related to forest succession. The study gives a possible clue to control invasive plants by regulating soil microbes of forest community to resist plant invasion.

  17. Variability and Controls of Plant Phenology in Drylands: A Novel Case Study from the Northern Chihuahuan Desert

    Science.gov (United States)

    Luna, N. R.; Browning, D. M.; Tweedie, C. E.

    2015-12-01

    By mid century, arid ecosystems will likely comprise the largest terrestrial biome on the planet largely as a result of anthropogenic disturbance and climate change. The size, extent, increased prevalence of shrubs, and large pool of soil carbon are just some of the underlying reasons why it is important to advance our understanding of biogeochemical cycling and energy balance in these landscapes and how change may alter feedbacks with other components of the Earth System. Although substantial progress has been made over the past decade, few studies have simultaneously examined how plant stress can constrain larger scale phenomenon (e.g. plant and landscape phenology), and how large scale phenomenon (e.g. climatic extremes and variability) can impact relatively small scale processes such as plant photosynthetic stress. This study, conducted in a creosote shrubland on the USDA Jornada Experimental Range (JER) in southern New Mexico during 2012-2015, documents seasonal changes in plant and landscape phenology (NPN protocols and phenocams) across four different land cover types (LCTs). The selected LCTs includes grassland, grassland-tobosa playa, shrubland-sandy ridge, and shrubland where each vegetative growth is captured with Windscape "PlantCams" between 11:00 am and 2:00 pm MST. An image processing program (Phenology Analyzer Software), developed in-house has been used to process and analyze imagery. Regions of interest (ROIs) were chosen at the plant and landscape scale to enable inter-comparison of plant phenological trends within and between LCTs using a well-acceted greenness index (Richardson et al. 2007). Timing of green-up was similar between sites but peak greenness varied between LCTs. Shrubland greenness was substantially greater than values from other LCTs. Ongoing analysis is also exploring the utility of alternate color spaces (HSV and L*a*b*) for describing plant phenology using custom phenocams maintained on the JER by UTEP Systems Ecology Lab. This

  18. How do plant communities and flower visitors relate? A case study of semi-natural xerothermic grasslands

    Directory of Open Access Journals (Sweden)

    Damian Chmura

    2013-06-01

    Full Text Available The paper examines the relationships between the species composition of flower visitors and plants in the semi-natural xerothermic grasslands in southern and central Poland. Thirty 10 × 10 m permanent plots were laid out in total, mainly in nature reserves. The vegetation units studied were classified according to the Braun-Blanquet system; these were phytocoenoses of the Festuco-Brometea classes Inuletum ensifoliae, Adonido-Brachypodietum pinnati and the transitional plant community. Entomological research was performed using the Pollard method within the same plots. A particular site was visited only once and different sites were studied between April and August 2008. We applied, among others, co-correspondence-analysis Co-CA, detrended correspondence analysis (DCA and redundancy analysis (RDA to investigate the co-occurrence patterns of plants and flower visitors and their biotopic requirements. We found that the species composition of flower visitors cannot be predicted by floristic composition when the duration of the study is restricted to one day (but under similar weather conditions; however, there is a positive relationship between the species richness of insects and plants and a positive relationship between the number of plant species and the abundance of flower visitors. The Ellenberg moisture index and the cover of meadow species significantly explained the species composition of insects. The three various vegetation units and five dominant xerothermic species, i.e. Adonis vernalis, Anemone sylvestris, Inula ensifolia, Linum hirsutum and Carlina onopordifolia that were studied across time differed in the species richness of insects. Our results demonstrate that possible patterns in the species composition and the assembly rules of flower visitors are not apparent when the Pollard method is applied. Based on the data obtained using this method, the flower visiting assemblages seem not to be driven by competition and they primarily

  19. Energetic autonomy of waste water treatment plants using anaerobic co-digestion of sewage sludges and MSW - A case study

    Energy Technology Data Exchange (ETDEWEB)

    Cecchi, F.; Traverso, P.G.; Chiesa, G.; Bozzola, L.

    The paper is a technical and economic analysis of the possibility to apply the sorted organic fraction of municipal solid wastes (MSW) to the anaerobic stabilization section of sewage sludge in a waste water treatment plant. The aim is to attain energetic autonomy of the plant through the increasing of the gas production rate. The study shows that savings of 65,000,000 Italian lire per year can be obtained with an investment cost of 300,000,000 lire. At the current interest rate (4-10%), this total amount can be paid back within 4 to 6 years.

  20. Les conflits de temporalités dans la gestion du littoral à l'épreuve de la GIZC

    Directory of Open Access Journals (Sweden)

    Fabienne Kervarec

    2010-07-01

    Full Text Available Processus intégratif d'action, la gestion intégrée des zones côtières (GIZC est en permanence confrontée dans sa mise en œuvre à des conflits de temporalité. Ceux-ci résultent de déphasages des rythmes et décalages entre les calendriers. Une démarche de GIZC voit inévitablement se croiser des enjeux de long, moyen et court termes. Elle met alors en lumière l'existence de conflits de temporalité. Mais elle recèle un potentiel intéressant pour atténuer ce phénomène. Son caractère structurant sur le long terme ajouté à son caractère intégrateur, qui doit s'étendre à la dimension temporelle, concourent à une meilleure prise en charge de ces conflits. Pourtant, dans la pratique, plusieurs obstacles limitent l'expression de ce potentiel.Integrative action process, the integrated coastal zone management (ICZM has to deal with temporality conflicts in its implementation. It results from phase shift in rhythms and calendars. During an ICZM process, simultaneous long, middle and short term stakes get crossed. Then, it reveals temporality conflicts. But ICZM has a real potential to reduce this phenomenon. The ICZM long term framing feature added to its integrative feature, including its temporal dimension, have a potential to deal with those conflicts. However, many fences reduce yet a complete achievement of this potential.

  1. Presentazione di un prototipo per la gestione dei persistent identifiers per i Beni Culturali al Convegno “Digital Preservation in Italia: esperienze a confronto” – Firenze 27 maggio 2008

    OpenAIRE

    Groppo, Emilia Adele

    2008-01-01

    Il 27 maggio 2008 si è svolta a Firenze, presso la Biblioteca Nazionale, la Tavola Rotonda sulla “Digital Preservation in Italia: esperienze a confronto”. Il CILEA, in collaborazione con la Fondazione Rinascimento Digitale, ha presentato i risultati del “Progetto NBN” che ha prodotto un prototipo per la gestione dei Persistent Identifiers.

  2. Les tendances des réformes de gestion des banques européennes%欧盟银行业经营模式变革的五大趋势及其经济效应

    Institute of Scientific and Technical Information of China (English)

    马红霞

    2004-01-01

    Les modifications de l'environnement de gestion des banques europeennes permettent a l'auteur d'analyser les tendances de leurs reformes et l'influence interessante de celles-ci sur la rentabilite et le pouvoir concurrentiel de ces etablissements financiers.

  3. Strategic Management and the Politics of Production in the Development of Work. A Case Study in a Danish Manufacturing Plant

    DEFF Research Database (Denmark)

    Clausen, Christian; Olsén, Peter

    2000-01-01

    . It is shown that the 'social constitution' of this plant implies profound ambivalent attitudes among management as well as workers towards changes of work content and organization. Finally, implications for strategic management for the development of work at company level are discussed....

  4. An Examination Some of Educational – Extension Factors Influencing Use of Transgenic Plants (Case Study: Ilam, Iran

    Directory of Open Access Journals (Sweden)

    Mohammad Bagher Arayesh

    2015-12-01

    Full Text Available The purpose of this study was to examine the effect of educational – extension factors on the use of transgenic plants. This study was conducted through a survey design. The research was an applied study type. The research method of this study is descriptive-correlation. Statistical population of the study consisted of all of biotechnology experts of Research Center of Agriculture of Ilam Province (N=63. Census method was used in this study. A questionnaire was the main tool which the face and content its validity was confirmed by panel of University Experts. Reliability Coefficient (Cronbach's alpha of the questionnaire was 92%. Results showed that the use of media (radio and TV was the most important factor in the use of transgenic plants. The result of Spearman correlation coefficients showed that, there was a significant relationship between the variables such as the use of communication media, communication with extension professionals, and scientific rank of professional with use of transgenic plants. Multiple regression analysis results showed that varriables like scientific rank, relationship with extension professionals and mass media have positive effect on the dependent variable of application of transgenic plants, describing 53.2% of the changes of the mentioned dependent variable.

  5. Food science meets plant science: A case study on improved nutritional quality by breeding for glucosinolate retention during food processing

    NARCIS (Netherlands)

    Hennig, K.; Verkerk, R.; Boekel, van M.A.J.S.; Dekker, M.; Bonnema, A.B.

    2014-01-01

    Nutritional quality of vegetables is affected by several steps in the food chain. Up to now the effects of these different steps are mostly studied separately. We propose the cooperation between plant breeding and food technology by using food technological parameters as breeding traits to identify

  6. Effect of power plant emission reductions on a nearby wilderness area: a case study in northwestern Colorado

    Science.gov (United States)

    Mast, M. Alisa; Ely, Daniel

    2013-01-01

    This study evaluates the effect of emission reductions at two coal-fired power plants in northwestern Colorado on a nearby wilderness area. Control equipment was installed at both plants during 1999–2004 to reduce SO2 and NOx emissions. One challenge was separating the effects of local from regional emissions, which also declined during the study period. The long-term datasets examined confirm that emission reductions had a beneficial effect on air and water quality in the wilderness. Despite a 75 % reduction in SO2 emissions, sulfate aerosols measured in the wilderness decreased by only 20 %. Because the site is relatively close to the power plants (2 to sulfate, particularly under conditions of low relative humidity, might account for this less than one-to-one response. On the clearest days, emissions controls appeared to improve visibility by about 1 deciview, which is a small but perceptible improvement. On the haziest days, however, there was little improvement perhaps reflecting the dominance of regional haze and other components of visibility degradation particularly organic carbon and dust. Sulfate and acidity in atmospheric deposition decreased by 50 % near the southern end of the wilderness of which 60 % was attributed to power plant controls and the remainder to reductions in regional sources. Lake water sulfate responded rapidly to trends in deposition declining at 28 lakes monitored in and near the wilderness. Although no change in the acid–base status was observed, few of the lakes appear to be at risk from chronic or episodic acidification.

  7. The potential of text mining in data integration and network biology for plant research: a case study on Arabidopsis.

    Science.gov (United States)

    Van Landeghem, Sofie; De Bodt, Stefanie; Drebert, Zuzanna J; Inzé, Dirk; Van de Peer, Yves

    2013-03-01

    Despite the availability of various data repositories for plant research, a wealth of information currently remains hidden within the biomolecular literature. Text mining provides the necessary means to retrieve these data through automated processing of texts. However, only recently has advanced text mining methodology been implemented with sufficient computational power to process texts at a large scale. In this study, we assess the potential of large-scale text mining for plant biology research in general and for network biology in particular using a state-of-the-art text mining system applied to all PubMed abstracts and PubMed Central full texts. We present extensive evaluation of the textual data for Arabidopsis thaliana, assessing the overall accuracy of this new resource for usage in plant network analyses. Furthermore, we combine text mining information with both protein-protein and regulatory interactions from experimental databases. Clusters of tightly connected genes are delineated from the resulting network, illustrating how such an integrative approach is essential to grasp the current knowledge available for Arabidopsis and to uncover gene information through guilt by association. All large-scale data sets, as well as the manually curated textual data, are made publicly available, hereby stimulating the application of text mining data in future plant biology studies.

  8. Can native plant species be preserved in an anthropogenic forest landscape dominated by aliens? A case study from Mediterranean Chile

    Directory of Open Access Journals (Sweden)

    Steffi Heinrichs

    2016-06-01

    Full Text Available Plantations with fast growing exotic tree species can negatively affect native plant species diversity and promote the spread of alien species. Mediterranean Chile experienced major landscape changes with a vast expansion of industrial plantations of Pinus radiata in the past. However, with increasing knowledge of biodiversity effects on ecosystem services Chilean forest owners now aim to integrate the conservation of native biodiversity into forest management, but data on native species diversity and establishment within a plantation landscape is scarce. Here we investigated plant species diversity and composition in four forest management options applied within a landscape dominated by P. radiata plantations in comparison to an unmanaged reference: (i a clear cut, (ii a strip cut, (iii a native canopy of Nothofagus glauca and (iv a young P. radiata plantation. We wanted to assess if native plant species can be maintained either by natural regeneration or by planting of native tree species (Nothofagus glauca, N. obliqua, Quillaja saponaria within this landscape. Results show a high diversity of native and forest plant species within the different management options indicating a high potential for native biodiversity restoration within an anthropogenic landscape. In particular, herbaceous species can benefit from management. They are rare in unmanaged natural forests that are characterized by low light conditions and a thick litter layer. Management, however, also promoted a diversity of alien species. The rapid spread of alien grass species after management can deter an initial establishment of native tree species or the survival and growth after planting mainly under dry but less under sufficient moisture conditions. The most unsuccessful option for promoting native plant species was clear cutting in a dry area where alien grasses were abundant. For drought-tolerant tree species such as Quillaja saponaria, though

  9. Can native plant species be preserved in an anthropogenic forest landscape dominated by aliens? A case study from Mediterranean Chile

    Directory of Open Access Journals (Sweden)

    Steffi Heinrichs

    2016-06-01

    Full Text Available Plantations with fast growing exotic tree species can negatively affect native plant species diversity and promote the spread of alien species. Mediterranean Chile experienced major landscape changes with a vast expansion of industrial plantations of Pinus radiata in the past. However, with increasing knowledge of biodiversity effects on ecosystem services Chilean forest owners now aim to integrate the conservation of native biodiversity into forest management, but data on native species diversity and establishment within a plantation landscape is scarce. Here we investigated plant species diversity and composition in four forest management options applied within a landscape dominated by P. radiata plantations in comparison to an unmanaged reference: (i a clear cut, (ii a strip cut, (iii a native canopy of Nothofagus glauca and (iv a young P. radiata plantation. We wanted to assess if native plant species can be maintained either by natural regeneration or by planting of native tree species (Nothofagus glauca, N. obliqua, Quillaja saponaria within this landscape. Results show a high diversity of native and forest plant species within the different management options indicating a high potential for native biodiversity restoration within an anthropogenic landscape. In particular, herbaceous species can benefit from management. They are rare in unmanaged natural forests that are characterized by low light conditions and a thick litter layer. Management, however, also promoted a diversity of alien species. The rapid spread of alien grass species after management can deter an initial establishment of native tree species or the survival and growth after planting mainly under dry but less under sufficient moisture conditions. The most unsuccessful option for promoting native plant species was clear cutting in a dry area where alien grasses were abundant. For drought-tolerant tree species such as Quillaja saponaria, though

  10. Genomics-Based Discovery of Plant Genes for Synthetic Biology of Terpenoid Fragrances: A Case Study in Sandalwood oil Biosynthesis.

    Science.gov (United States)

    Celedon, J M; Bohlmann, J

    2016-01-01

    Terpenoid fragrances are powerful mediators of ecological interactions in nature and have a long history of traditional and modern industrial applications. Plants produce a great diversity of fragrant terpenoid metabolites, which make them a superb source of biosynthetic genes and enzymes. Advances in fragrance gene discovery have enabled new approaches in synthetic biology of high-value speciality molecules toward applications in the fragrance and flavor, food and beverage, cosmetics, and other industries. Rapid developments in transcriptome and genome sequencing of nonmodel plant species have accelerated the discovery of fragrance biosynthetic pathways. In parallel, advances in metabolic engineering of microbial and plant systems have established platforms for synthetic biology applications of some of the thousands of plant genes that underlie fragrance diversity. While many fragrance molecules (eg, simple monoterpenes) are abundant in readily renewable plant materials, some highly valuable fragrant terpenoids (eg, santalols, ambroxides) are rare in nature and interesting targets for synthetic biology. As a representative example for genomics/transcriptomics enabled gene and enzyme discovery, we describe a strategy used successfully for elucidation of a complete fragrance biosynthetic pathway in sandalwood (Santalum album) and its reconstruction in yeast (Saccharomyces cerevisiae). We address questions related to the discovery of specific genes within large gene families and recovery of rare gene transcripts that are selectively expressed in recalcitrant tissues. To substantiate the validity of the approaches, we describe the combination of methods used in the gene and enzyme discovery of a cytochrome P450 in the fragrant heartwood of tropical sandalwood, responsible for the fragrance defining, final step in the biosynthesis of (Z)-santalols. © 2016 Elsevier Inc. All rights reserved.

  11. Superheater failures in ultra supercritical boilers - cases from Fynsvaerket, Vestkraft, and Skaerbaekvaerket power plants; Ueberhitzerschaeden in Kesseln mit fortschrittlichen Dampfparametern - Fallbeispiele aus den Kraftwerken Fynsvaerket, Vestkraft und Skaerbaekvaerket

    Energy Technology Data Exchange (ETDEWEB)

    Blum, R.; Larsen, O.H.; Henriksen, N.

    1999-12-01

    Superheater and reheater failures are well known problems in existing power boilers and a potential problem of great importance in new ultra supercritical (USC) plants. Unexpected shut downs caused by leaking superheater and reheater tubes affect the availability of the plant and thereby the overall plant economics. Overheating due to an incorrect balance of the actual temperature level, heat flux and cooling causes most of the superheater and reheater failures. Elsam has been dealing with these problems for many years, and based on experience gained from in service plants and from different in-plant test facilities a powerful simulation calculation programme has been set up. Using this programme it has been possible to explain the failures, assess the remaining lifetime of superheater or reheater sections and make correct simulations and assessments of superheater and reheater design in new boilers with advanced steam parameters. A detailed description of this calculation programme has been given in former papers. In this paper, examples of such evaluations will be given describing three cases where severe superheater failures were experienced in supercritical once through boilers. (orig.) [German] Ueberhitzer- und Zwischenueberhitzerschaeden sind in bestehenden Kraftwerkskesseln bekannt und stellen ein potentielles Problem groesster Wichtigkeit in neuen Anlagen mit fortgeschrittenen Dampfparametern dar. Unerwartete Betriebsunterbrechungen durch Leckagen von Ueberhitzer- und Zwischenueberhitzerrohren beeintraechtigen die Kraftwerksverfuegbarkeit und dadurch die Wirtschaftlichkeit. Ueberhitzung als Folge von Temperaturschieflagen, von inkorrekten Waermestromdichten und Kuehlung verursacht die meisten Ueberhitzer- und Zwischenueberhitzerschaeden. ELSAM befasst sich seit vielen Jahren mit diesem Problem. Anhand der Erfahrungen aus den Anlagen in Betrieb und Ergebnissen von verschiedenen Teststaenden in Kraftwerken wurde ein leistungsfaehiges Computerprogramm

  12. Reforming water services management. Indentification of optimal territorial units in Sicily; Riforma della gestione dei servizi idrici. Delimitazione degli ambiti territoriali ottimali in Sicilia

    Energy Technology Data Exchange (ETDEWEB)

    Rossi, G.; Ancarani, A.; Toscano, A. [Catania Univ, Catania (Italy). Ist. di Idraulica, Idrologia e Gestione delle Acque

    2000-12-01

    The Italian Law no. 36/1994 (Galli Act), which deeply reformed the management of Water Services in Italy, is facing great difficulties in implementation. These difficulties arise first of all from the delays of Regional governments and local authorities (Municipalities and Provinces) in developing their assigned tasks and also from the uncertainties about the organizational forms for the management of all local public services, to be regulated by a law currently under discussion at Parliament. Recently, criticisms to the Galli Act have pointed out the weakness of both the operational tools and the basic principles of the Act, in particular with reference to the criteria for the definition of Optimal Territorial Units (OTUs). In this paper some criteria for OTUs definition - based upon technical and management characteristics of the water supply, wastewater collection and treatment system-, more complex of those indicated by the Galli Act and by successive national and regional law are proposed and various alternatives of obtained following different criteria are compared using Sicily as a case study. The application of the proposed criteria priority seems to guarantee an OTUs definition more adequate than the ones defined according the national and regional laws. The proposed criteria could be useful even when the OTUs definition is already made in order to facilitate the revision of OTUs boundaries which expected after a first testing period. [Italian] L'attuazione della legge n. 36/1994 (Legge Galli), che si proponeva di modificare profondamente la gestione dei servizi idrici in Italia, sta incontrando notevoli difficolta'. Tali difficolta' derivano anzitutto dai ritardi con cui le Regioni e gli Enti Locali hanno adempiuto ai compiti loro affidati dalla legge, ma anche dall'incertezza sulle forme organizzative dei servizi pubblici locali regolamentati da una legge in corso di riforma al Parlamento. Recentemente le critiche alla legge Galli

  13. Gestion des risques naturels et prise en compte du développement durable : un lien équivoque. Le cas du sud grenoblois

    Directory of Open Access Journals (Sweden)

    Lauren Andres

    2009-01-01

    Full Text Available Cet article questionne la nature du lien envisageable entre risque naturel et développement durable à travers l’étude du territoire du sud grenoblois, soumis notamment à deux aléas naturels majeurs : le mouvement de terrain de grande ampleur dit des « Ruines de Séchilienne » et les probables crues de la Romanche et du Drac. Trois étapes structurent cette réflexion questionnant la transition supposée entre une gestion des risques naturels et une gestion durable des territoires soumis aux risques naturels : une association toute relative, un lien logique mais limité sur le terrain, une relation surtout indirecte. Les interactions identifiées, en termes législatifs mais aussi idéels et opérationnels, entre risque et durabilité se révèlent ainsi complexes et ne sont pas forcément explicites ; elles dépendent en particulier de multiples échelles territoriales (nationales à locales, confrontant alors pour l’essentiel des stratégies d’acteurs – porteurs des décisions ou du savoir technique – distinctes.

  14. La restituzione virtuale dell’architettura antica come strumento di ricerca e comunicazione dei beni culturali: ricerca estetica e gestione delle fonti

    Directory of Open Access Journals (Sweden)

    Stefano Borghini

    2011-12-01

    Full Text Available Raffaello Sanzio intuì per primo che il mondo antico, come lo vedevano i suoi occhi, non era che l’eco sbiadita di quella ricchezza che pur doveva caratterizzarne l’esperienza artistica. Oggi la tecnologia permette di realizzare il sogno di Raffaello e di restituire le immagini delle antiche architetture, rivoluzionando la percezione del patrimonio culturale da parte del pubblico moderno. La nostra esperienza decennale nel settore della comunicazione del bene culturale ha consentito di confrontarci con diversi casi: dalla Domus Aurea, all'Ara Pacis; dai filmati divulgativi agli applicativi pensati per le postazioni fisse dei musei, fino alla creazione di software per la gestione dei dati degli scavi archeologici. Sempre ponendo al centro di ogni lavoro i cardini del nostro modo di fare ricerca: l'attenzione al linguaggio, quale strumento di comprensione estetica, e la gestione informatizzata delle fonti, come apparato di studio e metodo di validazione scientifica delle ricostruzioni.[L’impostazione del saggio è comune ai due autori. In particolare, però, Stefano Borghini ha curato il paragrafo “Considerazioni generali”, mentre Raffaele Carlani “Alcune esperienze”].

  15. New Public Management et usage des outils de contrôle de gestion dans l’administration de l’éducation de Dubaï

    Directory of Open Access Journals (Sweden)

    Bouchra Fninou

    2014-09-01

    Dans le cadre d’une étude longitudinale basée sur une recherche observation, nous avons rencontré les managers de terrains et les contrôleurs de gestion de KHDA pour connaitre leurs représentations et leur ressenti vis-à-vis des outils de gestion conçu par le gouvernement de Dubaï. Nous avons collecté un ensemble de verbatims qui nous ont permis de mettre en évidence la résistance et la non adhésion de certains acteurs à la démarche de modernisation lancée par l’équipe politico-administrative dubaïote. Les résultats de cette recherche montrent que la mise en place du NPM dans l’administration publique de l’éducation de Dubaï connait des difficultés d’appropriation d’autant plus que cette administration est caractérisée par une grande diversité culturelle.

  16. Le difficile retour du " collectif " dans la gestion de l’eau : Regards sur 15 années d’efforts en Camargue gardoise

    Directory of Open Access Journals (Sweden)

    Daniel Petit

    2004-11-01

    Full Text Available Suite aux grandes mutations des années 60-70 en Camargue gardoise et à l’obsolescence du Traité des Marais qui réglait la gestion collective des niveaux d’eau, les acteurs économiques liés à l’eau se sont positionnés sur des logiques individualistes. L’eau est devenue l’objet de maints conflits avec de graves conséquences sur les ressources et les milieux. La mise en œuvre d’une Charte de l’environnement et d’un SAGE au début des années 90 a constitué les prémices du retour du " collectif " dans la gestion de l’eau. Mais on est encore loin de l’eau comme vecteur d’une construction territoriale à travers une communauté de projet liée à l’eau.

  17. Il controllo di gestione e operativo delle commesse per una impresa di costruzioni: nuovo impianto di trattamento e recupero di rifiuti urbani.

    Directory of Open Access Journals (Sweden)

    Matteo Camprini

    2013-10-01

    Full Text Available Il mercato delle costruzioni in Italia soffre problemi di maturità da molto tempo. Dagli anni ’90, infatti, per superare i fatti di tangentopoli venne riformata la legislazione dei lavori pubblici per giungere a livelli di competizione maggiori e più simili a quelli esistenti in Europa.  In questo contesto le imprese che per la loro struttura culturale, organizzativa e produttiva mostravano maggiore sensibilità a tali aspetti avviarono processi di formazione e riorganizzazione introducendo specifiche procedure mirate alla gestione completa dei progetti trasformandosi così da imprese di sola produzione a imprese operanti per progetti.La presente memoria vuole descrivere il sistema di gestione attuato, le modifiche ed i miglioramenti che si sono susseguiti nel tempo,  la sua struttura organizzativa e gli strumenti di lavoro messi a disposizione.A conclusione verrà illustrata l’applicazione al caso concreto della costruzione del nuovo impianto di trattamento e recupero di rifiuti urbani.

  18. A Case Study of Nearshore Wave Transformation Processes along the Coast of Mexico near the Laguna Verde Nuclear Power Plant Using a Fast Simulation Method

    Directory of Open Access Journals (Sweden)

    Israel-Enrique Herrera-Díaz

    2010-01-01

    numerical method was developed using a split proposed version of the mild-slope equation and solved by an implicit method in a finite volume grid; this technique easily allows model the wave effects caused by the breakwater building in coastal waters, where industrial and other economic activities take place. Controlled case studies have been made and the results match very well with the reference solution. The capability and utility of the model for real coastal areas are illustrated by application to the breakwater of the Laguna Verde Nuclear Power Plant (LVNPP.

  19. Transformation of traditional knowledge of medicinal plants: the case of Tyroleans (Austria who migrated to Australia, Brazil and Peru

    Directory of Open Access Journals (Sweden)

    Pirker Heidemarie

    2012-11-01

    Full Text Available Abstract Background In ethnobotanical research, the investigation into traditional knowledge of medicinal plants in the context of migration has been of increasing interest in recent decades since it is influenced and changed by new environmental and social conditions. It most likely undergoes transformation processes to match the different living circumstances in the new location. This study compares the traditional knowledge of medicinal plants held by Tyroleans – and their descendants – who emigrated to Australia, Brazil and Peru at different time scales. The study’s findings allow a discussion of the complexities and dynamics that influence this knowledge within the context of long-distance migration. Methods Information was obtained from 65 informants by free-listing, semi-structured interviews and non-participatory observation in Tyrol (Austria and the migrants’ countries: Australia, Brazil and Peru. The collected data was analysed using different quantitative approaches, including statistical tests, and compared between the countries of investigation. Results All respondents in all four investigation areas claimed that they had knowledge and made use of medicinal plants to treat basic ailments in their day-to-day lives. Informants made 1,139 citations of medicinal plants in total in free lists, which correspond to 164 botanical taxa (genus or species level in Tyrol, 87 in Australia, 84 in Brazil and 134 in Peru. Of all the botanical taxa listed, only five (1.1% were listed in all four countries under investigation. Agreement among informants within free lists was highest in Tyrol (17%, followed by Peru (12.2%, Australia (11.9% and Brazil (11.2%. The proportion of agreement differs significantly between informants in Australia and Tyrol (p = 0.001, Brazil and Tyrol (p = 0.001 and Peru and Tyrol (p = 0.001 and is similar between informants in the migrant countries, as indicated by statistical tests. We recorded 1,286 use

  20. Technique distribuee de gestion de la charge sur le reseau electrique et ring-tree: Un nouveau systeme de communication P2P

    Science.gov (United States)

    Ayoub, Simon

    Le reseau de distribution et de transport de l'electricite se modernise dans plusieurs pays dont le Canada. La nouvelle generation de ce reseau que l'on appelle smart grid, permet entre autre l'automatisation de la production, de la distribution et de la gestion de la charge chez les clients. D'un autre cote, des appareils domestiques intelligents munis d'une interface de communication pour des applications du smart grid commencent a apparaitre sur le marche. Ces appareils intelligents pourraient creer une communaute virtuelle pour optimiser leurs consommations d'une facon distribuee. La gestion distribuee de ces charges intelligentes necessite la communication entre un grand nombre d'equipements electriques. Ceci represente un defi important a relever surtout si on ne veut pas augmenter le cout de l'infrastructure et de la maintenance. Lors de cette these deux systemes distincts ont ete concus : un systeme de communication peer-to-peer, appele Ring-Tree, permettant la communication entre un nombre important de noeuds (jusqu'a de l'ordre de grandeur du million) tel que des appareils electriques communicants et une technique distribuee de gestion de la charge sur le reseau electrique. Le systeme de communication Ring-Tree inclut une nouvelle topologie reseau qui n'a jamais ete definie ou exploitee auparavant. Il inclut egalement des algorithmes pour la creation, l'exploitation et la maintenance de ce reseau. Il est suffisamment simple pour etre mis en oeuvre sur des controleurs associes aux dispositifs tels que des chauffe-eaux, chauffage a accumulation, bornes de recharges electriques, etc. Il n'utilise pas un serveur centralise (ou tres peu, seulement lorsqu'un noeud veut rejoindre le reseau). Il offre une solution distribuee qui peut etre mise en oeuvre sans deploiement d'une infrastructure autre que les controleurs sur les dispositifs vises. Finalement, un temps de reponse de quelques secondes pour atteindre 1'ensemble du reseau peut etre obtenu, ce qui est