WorldWideScience

Sample records for clean room sistema

  1. 'How To' Clean Room Video

    Science.gov (United States)

    McCarty, Kaley Corinne

    2013-01-01

    One of the projects that I am completing this summer is a Launch Services Program intern 'How to' set up a clean room informational video. The purpose of this video is to go along with a clean room kit that can be checked out by employees at the Kennedy Space Center and to be taken to classrooms to help educate students and intrigue them about NASA. The video will include 'how to' set up and operate a clean room at NASA. This is a group project so we will be acting as a team and contributing our own input and ideas. We will include various activities for children in classrooms to complete, while learning and having fun. Activities that we will explain and film include: helping children understand the proper way to wear a bunny suit, a brief background on cleanrooms, and the importance of maintaining the cleanliness of a space craft. This project will be shown to LSP management and co-workers; we will be presenting the video once it is completed.

  2. MEMS and Nano-Technology Clean Room

    Data.gov (United States)

    Federal Laboratory Consortium — The MEMS and Nano-Technology Clean Room is a state-of-the-art, 800 square foot, Class 1000-capable facility used for development of micro and sub-micro scale sensors...

  3. SRF Clean Rooms and Cryomodule Assembly

    Data.gov (United States)

    Federal Laboratory Consortium — Three primary cleanroom facilities used for the SRF cryomodule production program are available. All 3 clean rooms have class 10 and class 100 areas. The largest is...

  4. Clean Industrial Room for Drift Tube Assembling

    CERN Document Server

    Glonti, GL; Evtoukhovitch, P G; Kroa, G; Manz, A; Potrap, I N; Rihter, P; Stoletov, G D; Tskhadadze, E G; Chepurnov, V F; Chirkov, A V; Shelkov, G A

    2001-01-01

    Description of a clean industrial room for assembly of drift tubes for the muon spectrometer of the ATLAS experiment is presented. High quality specifications on the detectors to be produced demanded creation of a workplace with stable temperature and humidity, as well as minimum quantity of dust in the room. Checking of parameters of intra-room air during long period of continuous work has been confirmed correctness of the designed characteristics of the climatic system installed in the clean room. The room large volum (\\sim 190 m^3), the powerful and flexible climatic system, and simplicity of service allow assembling of detectors with length up to 5 m. Subsequent checking of functionality of the assembled detectors has shown high quality of assembling (the amount of rejected tubes does not exceed 2 %). It demonstrates conformity to the assembling quality requirements for mass production of drift chambers for the muon spectrometer.

  5. Diversity of anaerobic microbes in spacecraft assembly clean rooms.

    Science.gov (United States)

    Probst, Alexander; Vaishampayan, Parag; Osman, Shariff; Moissl-Eichinger, Christine; Andersen, Gary L; Venkateswaran, Kasthuri

    2010-05-01

    Although the cultivable and noncultivable microbial diversity of spacecraft assembly clean rooms has been previously documented using conventional and state-of-the-art molecular techniques, the occurrence of obligate anaerobes within these clean rooms is still uncertain. Therefore, anaerobic bacterial communities of three clean-room facilities were analyzed during assembly of the Mars Science Laboratory rover. Anaerobic bacteria were cultured on several media, and DNA was extracted from suitable anaerobic enrichments and examined with conventional 16S rRNA gene clone library, as well as high-density phylogenetic 16S rRNA gene microarray (PhyloChip) technologies. The culture-dependent analyses predominantly showed the presence of clostridial and propionibacterial strains. The 16S rRNA gene sequences retrieved from clone libraries revealed distinct microbial populations associated with each clean-room facility, clustered exclusively within gram-positive organisms. PhyloChip analysis detected a greater microbial diversity, spanning many phyla of bacteria, and provided a deeper insight into the microbial community structure of the clean-room facilities. This study presents an integrated approach for assessing the anaerobic microbial population within clean-room facilities, using both molecular and cultivation-based analyses. The results reveal that highly diverse anaerobic bacterial populations persist in the clean rooms even after the imposition of rigorous maintenance programs and will pose a challenge to planetary protection implementation activities.

  6. Bacterial contamination in hotel rooms during the cleaning activity

    OpenAIRE

    Monteiro, ANA; Cabo Verde, Sandra; Carolino, Elisabete

    2016-01-01

    Introduction - Some studies point to human activities as one of the responsible for most bacterial concentration. However, there is no information regarding bacteria contamination in hotel room during the cleaning activity. Aim of the study - This study aims to assess and characterize the occupational exposure of bacterial contamination in hotel rooms, more precisely in a room with carpet floor and another room without carpet, during the cheaning activity.

  7. 9 CFR 354.241 - Cleaning of rooms and compartments.

    Science.gov (United States)

    2010-01-01

    ... AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND POULTRY PRODUCTS INSPECTION AND VOLUNTARY... light fixtures in the official plant shall be kept clean. (c) All docks and rooms shall be kept...

  8. I'm dreaming of a white clean room...

    CERN Document Server

    Katarina Anthony

    2014-01-01

    New HIE-ISOLDE cryomodules are now under construction in a state-of-the-art clean room facility in SM18.   The HIE-ISOLDE clean rooms in SM18. HIE-ISOLDE is set to be the world's leading nuclear physics site, ultimately accelerating radioactive nuclei to an impressive 10 MeV/u. Helping the facility reach this energy are new superconducting cryomodules, the first quarter-wave cavity module to be assembled at CERN and necessitating a custom clean-room in SM18. At a towering five metres tall, the new clean room houses a custom assembly frame and associated equipment, moving the components of the 6 tonne cryomodules both vertically and horizontally while they are being assembled. "Each cryomodule is made up of some 10,000 parts, which have come from across the continents to be assembled here," says CERN TE engineer Lloyd Williams, who is managing quality assurance for the project. "Each part is checked by the CERN team, catalogued and thoroughly cleaned, befor...

  9. Elements of Clean-room Technology and Contamination Control

    Directory of Open Access Journals (Sweden)

    J.C. Kapoor

    2003-07-01

    Full Text Available The heart of the clean room is the high efticiency particualte air (HEPA/ultra-low penetration air (ULPA filter, which provides the highest level of air cleaning ever achieved by a singleprocess step. Filter technology has seen tremendous growth in terms of ultimate performance and air handling capacity. Mere installation of ULPA filters of 99.99995 per cent efficiency for 0.2 um aerosol is not sufficient for achieving the desired performance of a clean room. Other design aspects like flow fields, face velocity, number of air changes, make-up air fractions and precise control of other environmental parameters (temperature, humidity, airflow, noise, vibrations, electrostatic discharge, etc. are equally important.

  10. Spanish Government delegation in the ISR workshop clean room

    CERN Multimedia

    1982-01-01

    A Spanish Government delegation visited CERN before Spain rejoined CERN as a Member State(in 1983). Some delegates were particularly interested in advanced technologies. The picture shows them in the ISR workshop clean room looking at components of vacuum chambers for experiments. From left to right: a delegate, Director-General Herwig Schopper demonstrating the lightness of a titanium chamber, another delegate, the Spanish Minister of Industry and Energy Mr.Ignacio Bayon Marine and Romeo Perin. See also 8202369.

  11. Evaluating The Operation Of Three Air Cleaners Working Individually In A Clean Room

    DEFF Research Database (Denmark)

    Ardkapan, Siamak Rahimi; Afshari, Alireza; Bergsøe, Niels Christian;

    2011-01-01

    , photochemical air purifier and corona discharge ionizer. The concentrations of ultrafine particles, ozone and total volatile organic compounds were measured both in a duct and in a clean room. It was found that the studied air cleaning technologies increased the ozone level in the clean room and the duct......The use of portable air cleaners is becoming increasingly popular in many countries including Denmark. Portable air cleaners are known for not only removing but also generating particles and gases. To clarify this, three air cleaning technologies were evaluated. They were nonthermal plasma...... that air cleaners should be evaluated in a clean room about generation of ozone to get more reliable evaluation....

  12. Microbiological aspects of clean room technology as applied to surgery, with special reference to unidirectional airflow systems

    Science.gov (United States)

    Wardle, M. D.

    1974-01-01

    The microbiological aspects of clean room technology as applied to surgery were reviewed. The following pertinent subject areas were examined: (1) clean room technology per se and its utilization for surgery, (2) microbiological monitoring of the clean room surgical environment, (3) clean rooms and their impact on operating room environmental microbiology, and (4) the effect of the technology on surgical wound infection rates. Conclusions were drawn for each topic investigated.

  13. Blowers for clean rooms; Ventilatoren. Keine Beruehrungsaengste mit Reinraum-Planungskonzepten

    Energy Technology Data Exchange (ETDEWEB)

    Schott, T. [CAT Clean Air Technology GmbH, Stuttgart (Germany); Anschuetz, J.; Buehrle, W. [Gebhardt-Ventilatoren, Waldenburg (Germany)

    2005-10-01

    The contribution explains specifications for and components of clean rooms, describes alternative ventilation concepts and shows exemplary tests to be made prior to commissioning. Constructional measures and staff rules are left out of account. (orig.)

  14. Cleaning-resistant Cupriavidus and Ralstonia bacteria contaminating spacecrafts and the ultra clean rooms they are assembled in.

    Science.gov (United States)

    Leys, N.; Dams, A.; Bossus, A.; Provoost, A.; Venkateswaran, K.; Mergeay, M.

    Background Planetary Protection is preventing microbial contamination of both the target planet and the Earth when sending spacecrafts on interplanetary space mission It is important to preserve the natural conditions of other planets and to not bring with robots earthly microbes forward contamination when looking for spores of extra terrestrial life Spacecrafts and the ultra clean rooms they are assembled in are routinely monitored for microbial contamination It was shown that the floor air and surfaces of such spacecraft assembly rooms often contain Cupriavidu s and Ralstonia bacteria These bacteria not only contaminated the clean rooms but have also been found prior-to-flight on surfaces of space robots such as the Mars Odyssey Orbiter La Duc et al 2003 and even in-flight in ISS cooling water and Shuttle drinking water unpublished Aim In this study several Cupriavidus and Ralstonia strains isolated from space craft assembling rooms and spacecrafts were characterized and analysed in detail Results The analysis showed that all the Cupriavidus and Ralstonia clean-room isolates are able to use a wide variety of substrates as carbon sources including ethanol and acetone In addition they all have accumulated moderate resistances to an extraordinary collection of physical and chemical antimicrobial agents Some of the test strains were able to form biofilms on plastic and metal materials used for space robots a nutritional and

  15. Characterization of predominant bacteria isolates from clean rooms in a pharmaceutical production unit

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Aims: To screen for the predominant bacteria strains distributed in clean rooms and to analyze their phylogenetic relationships. Methods and Results: The bacteria distributed in air, surfaces and personnel in clean rooms were routinely monitored using agar plates. Five isolates frequently isolated from the clean rooms of an aseptic pharmaceutical production workshop were selected based on their colony and cell morphology characteristics. Their physiological and biochemical properties, as well as partial 16S rDNA sequences, were analyzed. Results showed that all the five isolates belong to Gram positive bacteria, of which three were Staphylococcus, one Microbacterium and one Bacillus species. Sensitivity tests for these bacteria isolates to 3 disinfectants showed that isolate F03 was obtuse, and had low susceptivity to UV irradiation, while isolates F02, F01 and F04 were not sensitive to phenol treatment. Isolates F04, F01 and F05 were resistant to chlorhexidine gluconate. Conclusion: Bacteria widely distributed in clean rooms are mainly a group of Gram positive strains, showing high resistance to selected disinfectants. Significance and impact of the study: Clean rooms are essential in aseptic pharmaceutical and food production. Screening bacteria isolates and identifying them is part of good manufacturing practices, and will aid in finding a more effective disinfection method.

  16. CERN Technical Training 2002: Learning for the LHC! CLEAN-2002: WORKING IN A CLEAN ROOM

    CERN Multimedia

    Davide Vitè

    2002-01-01

    CLEAN-2002 is a new, free of charge, half-day seminar in the context of Technical Training for the LHC. The course is designed for personnel working or managing activities in an assembly cleanroom, for example physicists, engineers and technicians working at or visiting the laboratory. CLEAN-2002 is aimed at raising awareness about good working practices in a cleanroom, and at providing practical examples, analysis tools, and documentation. Specific problems put forward beforehand by attendees will also be addressed. If you are interested in CLEAN-2002, please discuss with your supervisor or your DTO. More information and online registration by EDH are available from the Technical Training pages. The next session, in English, will be on 10 October (afternoon). Other sessions, in French and English, will be offered following demand: the first session in French will be organised in November. Organiser: Davide Vitè / HR-TD / 75141 Davide.Vite@cern.ch

  17. ATP as a biomarker of viable microorganisms in clean-room facilities

    Science.gov (United States)

    Venkateswaran, Kasthuri; Hattori, Noriaki; La Duc, Myron T.; Kern, Roger

    2003-01-01

    A new firefly luciferase bioluminescence assay method that differentiates free extracellular ATP (dead cells, etc.) from intracellular ATP (viable microbes) was used to determine the viable microbial cleanliness of various clean-room facilities. For comparison, samples were taken from both clean-rooms, where the air was filtered to remove particles >0.5 microm, and ordinary rooms with unfiltered air. The intracellular ATP was determined after enzymatically degrading the sample's free ATP. Also for comparison, cultivable microbial populations were counted on nutrient-rich trypticase soy agar (TSA) plates. Both the cultivable and ATP-based determinations indicate that the microbial burden was lower in clean-room facilities than in ordinary rooms. However, there was no direct correlation between the two sets of measurements because the two assays measured very different populations. A large fraction of the samples yielded no colony formers on TSA, but were positive for intracellular ATP. Subsequently, genomic DNA was isolated directly from selected samples and 16S rDNA fragments were cloned and sequenced, identifying nearest neighbors, many of which are known to be noncultivable in the media employed. It was concluded that viable microbial contamination can be reliably monitored by measurement of intracellular ATP, and that this method may be considered superior to cultivable colony counts due to its speed and its ability to report the presence of viable but noncultivable organisms. When the detection of nonviable microbes is of interest, the ATP assay can be supplemented with DNA analysis.

  18. How Clean Are Hotel Rooms? Part I: Visual Observations vs. Microbiological Contamination.

    Science.gov (United States)

    Almanza, Barbara A; Kirsch, Katie; Kline, Sheryl Fried; Sirsat, Sujata; Stroia, Olivia; Choi, Jin Kyung; Neal, Jay

    2015-01-01

    Current evidence of hotel room cleanliness is based on observation rather than empirically based microbial assessment. The purpose of the study described here was to determine if observation provides an accurate indicator of cleanliness. Results demonstrated that visual assessment did not accurately predict microbial contamination. Although testing standards have not yet been established for hotel rooms and will be evaluated in Part II of the authors' study, potential microbial hazards included the sponge and mop (housekeeping cart), toilet, bathroom floor, bathroom sink, and light switch. Hotel managers should increase cleaning in key areas to reduce guest exposure to harmful bacteria.

  19. [Time for cleaning and room preparation: connection between surgery size and professional perspectives].

    Science.gov (United States)

    de Avila, Marla Andréia Garcia; de Fusco, Suzimar Fátima Benato; Gonalves, Ivana Regina; Caldeira, Sílvia Maria; Padovani, Carlos Roberto; Yoo, Hugo Hyung Bok

    2014-03-01

    The objective was to verify the association between time needed for room cleaning (TLPS) and the surgery size, and related advantages and difficulties faced by the circulator of the room asszgned to this task. A mixed method, with a transverse quantitative, retrospective approach, using a sample of 3095 surgeries performed,from January to June 2011, and a qualitative approach using a Thematic Content Analysis of statements from 11 circulators, was used. The average TLPS was smaller in size 1 surgeries, increasing in sizes 2, 3 and 4, with a significant difference. Advantages reported included organization and size of staff and difficulties reported related to sharp, bladed materials mixed with surgical instruments and a reduced number of cleaning professionals. The larger the size, the higher the TLPS. Surgical teams operating in the Surgical Center interfere directly in the process, facilitating or hindering the achievement of institutional goals related to quality and productivity.

  20. Time for cleaning and room preparation: connection between surgery size and professional perspectives

    Directory of Open Access Journals (Sweden)

    Marla Andréia Garcia de AVILA

    Full Text Available The objective was to verify the association between time needed for room cleaning (TLPS and the surgery size, and related advantages and difficulties faced by the circulator of the room assigned to this task. A mixed method, with a transverse quantitative, retrospective approach, using a sample of 3095 surgeries performed, from January to June 2011, and a qualitative approach using a Thematic Content Analysis of statements from 11 circulators, was used. The average TLPS was smaller in size 1 surgeries, increasing in sizes 2, 3 and 4, with a significant difference. Advantages reported included organization and size of staff, and difficulties reported related to sharp, bladed materials mixed with surgical instruments and a reduced number of cleaning professionals. The larger the size, the higher the TLPS. Surgical teams operating in the Surgical Center interfere directly in the process, facilitating or hindering the achievement of institutional goals related to quality and productivity.

  1. Large Eddy Simulation of Flow Field in Vector Flow Clean-Room

    Institute of Scientific and Technical Information of China (English)

    樊洪明; 刘顺隆; 何钟怡; 李先庭

    2002-01-01

    The turbulent large eddy simulation (LES) technique and the finite element method (FEM) of computational fluid dynamics (CFD) are used to predict the three-dimensional flow field in a vector flow clean-room under empty state and static state conditions. The partly expanded Taylor-Galerkin (TG) discretization scheme is combined with implicit stream-upwind diffusion in the finite element formulation of the basic equations with Gauss filtering. The vortex viscosity subgrid model is used in the numerical simulation. The numerical results agree well with the available experimental data, showing that the LES method can more accurately predict the size and location of large eddies in clean-rooms than the standard k-ε two equation model.

  2. The Effect of Market Orientation on Business Performance of the Companies Designing and Manufacturing Clean Rooms

    Directory of Open Access Journals (Sweden)

    Amirhossein Amirkhani

    2009-01-01

    Full Text Available Problem statement: Theatrically claimed that there is relationship between market orientation and improvement of business performance of the companies, but the regular empirical research is carried out to understand deeply and prove these claims especially in Iranian environment. Considering the importance of market orientation, as well as lack of information on its effects, this study considered its effect on the business performance of companies engaging in clean room industry in Iran, while mentioning different viewpoints and theories on the market orientation. Approach: This study was a descriptive-survey, correlation-based research. Its population includes 110 units, from which, 80 units were selected as sample with using simple random sampling. Finally all study hypotheses were confirmed. At the present study, the different components were extracted for measuring business performance contains: Company effectiveness on the market, including success of new product, attracting the customer, keeping the customer and product quality. Domination over the market, including sale volume, sale growth, market share, financial performance, including profit, cash flows and rate of capital return. Results: The variables correlation coefficients in each of research hypothesis were respectively 0.671, 0.709, 0.659 and 0.517, which considering the acceptance criterion is 0.50 it can be concluded that there is a high correlation coefficient between each one variables. Finally all study hypotheses were confirmed. Conclusion: The positive and significant relationship between market orientation and business performance of the companies designing and manufacturing clean rooms was established though testing the principal hypothesis. In other words, it can be said that market orientation viewpoint on each of companies manufacturing clean rooms had positive influence on their business performance. Recommendations had been submitted as per market orientation

  3. Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms

    DEFF Research Database (Denmark)

    Bivolarova, Mariya Petrova; Melikov, Arsen Krikor; Mizutani, Chiyomi;

    2016-01-01

    The performance of a ventilated mattress (VM) used as a bed-integrated local exhaust ventilation system combined with air cleaning fabric (acid-treated activated carbon fibre (ACF) fabric) was developed and studied. The separate and combined effect of the VM and the local air cleaning for reducing...... micro-environment was exhausted. Two modes of operation were studied: 1) the exhausted polluted air was discharged out of the room and 2) the polluted air was cleaned by the ACF material installed inside the mattress and recirculated back into the room. Both modes of operation efficiently reduced...

  4. Cultivation of anaerobic and facultatively anaerobic bacteria from spacecraft-associated clean rooms.

    Science.gov (United States)

    Stieglmeier, Michaela; Wirth, Reinhard; Kminek, Gerhard; Moissl-Eichinger, Christine

    2009-06-01

    In the course of this biodiversity study, the cultivable microbial community of European spacecraft-associated clean rooms and the Herschel Space Observatory located therein were analyzed during routine assembly operations. Here, we focused on microorganisms capable of growing without oxygen. Anaerobes play a significant role in planetary protection considerations since extraterrestrial environments like Mars probably do not provide enough oxygen for fully aerobic microbial growth. A broad assortment of anaerobic media was used in our cultivation strategies, which focused on microorganisms with special metabolic skills. The majority of the isolated strains grew on anaerobic, complex, nutrient-rich media. Autotrophic microorganisms or microbes capable of fixing nitrogen were also cultivated. A broad range of facultatively anaerobic bacteria was detected during this study and also, for the first time, some strictly anaerobic bacteria (Clostridium and Propionibacterium) were isolated from spacecraft-associated clean rooms. The multiassay cultivation approach was the basis for the detection of several bacteria that had not been cultivated from these special environments before and also led to the discovery of two novel microbial species of Pseudomonas and Paenibacillus.

  5. Design and construction of the clean room for proton beam accelerator assembly

    Energy Technology Data Exchange (ETDEWEB)

    Park, J. S.; Song, I. T

    2000-09-01

    The objective of this report is to design, construction and evaluation of clean room for proton beam accelerator assembly. The design conditions o Class : 1,000(1,000 ea ft{sup 3}), o Flow Rate : 200 m{sup 3}/h m{sup 2}, o Temperature : 22 deg C{+-}2, o Humidity : 55%{+-}5. The main design results are summarized as follows: o Air-handling unit : Cooling Capacity : 13,500 kcal/h, Heating Capacity : 10,300 kcal/h, Humidity Capacity : 4 kg/h, Flow Rate : 150 CMM o Air Shower : Flow Rate : 35 CMM, Size : 1500 x 1000 x 2200, Material : In-steel, Out-SUS304, Filter : PRE + HEPA, AIR Velocity : 25 m/s o Relief Damper : Size : {phi}250, Casing : SS41, Blade : AL, Shaft : SUS304, Weight Ring : SS41, Grill : AL o HEPA Filter Box : Filter Box Size : 670 x 670 x 630, Filter Size : 610 x 610 x 150, Frame: Poly Wood, Media : Glass Fiber, Filter Efficiency : 0.3{mu}m, 99.97%, Separator : AL, Flow Rate : 17 CMM, Damper Size : {phi}300 Following this report will be used important data for the design, construction, operation and maintenance of the clean room, for high precision apparatus assembly laboratory.

  6. The first collection of spacecraft-associated microorganisms: a public source for extremotolerant microorganisms from spacecraft assembly clean rooms.

    Science.gov (United States)

    Moissl-Eichinger, Christine; Rettberg, Petra; Pukall, Rüdiger

    2012-11-01

    For several reasons, spacecraft are constructed in so-called clean rooms. Particles could affect the function of spacecraft instruments, and for missions under planetary protection limitations, the biological contamination has to be restricted as much as possible. The proper maintenance of clean rooms includes, for instance, constant control of humidity and temperature, air filtering, and cleaning (disinfection) of the surfaces. The combination of these conditions creates an artificial, extreme biotope for microbial survival specialists: spore formers, autotrophs, multi-resistant, facultative, or even strictly anaerobic microorganisms have been detected in clean room habitats. Based on a diversity study of European and South-American spacecraft assembly clean rooms, the European Space Agency (ESA) has initialized and funded the creation of a public library of microbial isolates. Isolates from three different European clean rooms, as well as from the final assembly and launch facility in Kourou (French Guiana), have been phylogenetically analyzed and were lyophilized for long-term storage at the German Culture Collection facilities in Brunswick, Germany (Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen). The isolates were obtained by either following the standard protocol for the determination of bioburden on, and around, spacecraft or the use of alternative cultivation strategies. Currently, the database contains 298 bacterial strains. Fifty-nine strains are Gram-negative microorganisms, belonging to the α-, β- and γ-Proteobacteria. Representatives of the Gram-positive phyla Actinobacteria, Bacteroidetes/Chlorobi, and Firmicutes were subjected to the collection. Ninety-four isolates (21 different species) of the genus Bacillus were included in the ESA collection. This public collection of extremotolerant microbes, which are adapted to a complicated artificial biotope, provides a wonderful source for industry and research focused on

  7. Standard Test Method for Sizing and Counting Particulate Contaminant In and On Clean Room Garments

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2000-01-01

    1.1 This test method covers the determination of detachable particulate contaminant 5 m or larger, in and on the fabric of clean room garments. 1.2 This test method does not apply to nonporous fabrics such as Tyvek or Gortex. It only applies to fabrics that are porous such as cotton or polyester. 1.3 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for information only. 1.4 This test method provides not only the traditional optical microscopic analysis but also a size distribution and surface obscuration analysis for particles on a fine-textured membrane filter or in a tape lift sample. It utilizes transmitted illumination to render all particles darker than the background for gray level detection. Particles collected on opaque plates must be transferred to a suitable membrane filter. This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associat...

  8. sistemas

    Directory of Open Access Journals (Sweden)

    Diego Alejandro Muñoz Gaviria

    2006-01-01

    Full Text Available El texto presentado a continuación, plantea en términos generales las principales posturas conceptuales del sociólogo alemán Niklas Luhmann sobre las ideas de Max Weber y su teoría de la acción social, y de Talcott Parsons y sus planteamientos en torno a la teoría de los sistemas sociales. Al final del escrito se hace especial énfasis en el rol protagónico que para Luhmann tienen las ciencias sociales y humanas en la autorreferencia del sistema social.

  9. Strengthening management of cleaning personnel in clean operating room%加强洁净手术室保洁人员管理的调查研究

    Institute of Scientific and Technical Information of China (English)

    银彩霞; 董薪

    2011-01-01

    OBJECTIVE To strengthen the management of cleaning workers, so as to effectively prevent cross infection. METHODS A series of scientific measures for cleaning workers were taken to establish and amplify the necessary rules and regulations and strengthen the training of new employee and the personal protection, and the supervision, quality assessment and reward and punishments for the cleaning task were regularly conducted.RESULTS Through all the measures being carried out, the communication, understanding and respect between the medical care personnel and cleaning staff were strengthened, the positivity was improved. The incidence of cross infection in operating room was effectively improved. CONCLUSION The supervision to the management system and the implementation of countermeasures should be strengthened to prevent and control nosocomial infection.%目的 加强手术室物业保洁人员管理,预防医院交叉感染. 方法 针对保洁人员存在的问题,实施管理对策,完善各项规章制度,强化培训;感染监测小组定期与不定期对保洁工作进行督查、质量考评和奖惩. 结果 通过对保洁人员进行全面的管理与培训,加强了医护与保洁人员之间相互沟通、理解、尊重,提高积极性,有效改善医院手术科室交叉感染的发生率. 结论 应强化各种管理制度监督对策实施,有效预防和控制医院感染的发生.

  10. How Clean Are Hotel Rooms? Part II: Examining the Concept of Cleanliness Standards.

    Science.gov (United States)

    Almanza, Barbara A; Kirsch, Katie; Kline, Sheryl Fried; Sirsat, Sujata; Stroia, Olivia; Choi, Jin Kyung; Neal, Jay

    2015-01-01

    Hotel room cleanliness is based on observation and not on microbial assessment even though recent reports suggest that infections may be acquired while staying in hotel rooms. Exploratory research in the first part of the authors' study was conducted to determine if contamination of hotel rooms occurs and whether visual assessments are accurate indicators of hotel room cleanliness. Data suggested the presence of microbial contamination that was not reflective of visual assessments. Unfortunately, no standards exist for interpreting microbiological data and other indicators of cleanliness in hotel rooms. The purpose of the second half of the authors' study was to examine cleanliness standards in other industries to see if they might suggest standards in hotels. Results of the authors' study indicate that standards from other related industries do not provide analogous criteria, but do provide suggestions for further research.

  11. Application of towel mechanical cleaning method in floor cleaning and disinfection of operation room%地巾机械清洗方法在手术室地面清洁工作中的应用

    Institute of Scientific and Technical Information of China (English)

    陈锐; 李静; 徐少珍

    2014-01-01

    目的:探讨地巾机械清洗方法在手术室地表清洁工作中的作用。方法采用拖把手工清洗方法和地巾机械清洗方法对50间手术间进行术后清洁,并对地面、拖把、地巾进行微生物监测。结果机械地巾组清洁的手术间地面合格率(96浇.0%)高于手工拖把组合格率(82.0%)。地巾清洗合格率明显高于拖把。结论采用地巾机械清洗方法对手术间地面进行清洁,减少了手术室内细菌扩散,是防止手术感染的重要环节。%Objective To explore the effects of towel mechanical cleaning method in floor cleaning and disinfection of operation rooms .Methods Mop manual cleaning method and towel mechanical cleaning method were used to clean floor of 50 operation rooms .Floors in operation rooms ,mops ,towels were checked by microbial monitoring .Results Disinfection qualified rate of operation room floors by towel mechanical cleaning method was higher than that by mop manual cleaning method (96 -.0% vs 82 .0% ) . Cleaning qualified rate of towel was significantly higher than that of mop .Conclusion Floor cleaning and disinfection by towel mechanical cleaning method can reduce bacteria diffusion in operation rooms ,and it is an important link to prevent operation infection .

  12. Qualitative Analysis and Study of the Microorganisms in Clean Air within Clean Room of the Pharmaceutical Industry%医药工业洁净室洁净空气微生物定性分析与探讨

    Institute of Scientific and Technical Information of China (English)

    吕洪浩; 李俊杰; 徐慰倬

    2012-01-01

    ObjGCtive To study the distribution of the microorganisms in clean air within clean room of the pharmaceutical industry. Methods Test method for settling microbe was used in the clean air of some clean rooms. The microorganisms isolated were analysed by morphological observation, physiological and biochemical tests and 16S rDNA sequence analysis. Results A strain of actinomycete, four strains of fungi and ten strains of bacteria were derived in the experiment. Conclusion The clean air mainly consists of bacteria, a small amount of fungi and actinomycetes. Professionals of enterprise should master the distribution of bacteria, fungi and actinomycetes, analyze the causes of formation of the colony forming unit and take targeted methods of control for the environment of the clean room to guarantee the quality of products.%目的 探讨医药工业洁净室洁净空气中微生物分布情况.方法 对部分洁净室洁净空气进行沉降菌检测,采用形态学观察,生理生化反应检测以及16S rDNA序列测定等技术对微生物进行分析.结果 通过实验共获得放线菌1株,真菌4株,细菌10株.结论 一般洁净空气中以细菌为主,有少量真菌及放线菌,企业生产者应掌握这些菌的分布情况,分析这些菌落形成的原因,对洁净室环境做出针对性控制手段以保证产品质量.

  13. Economic and energy benefits in clean rooms, case of study: natural illumination and insulating capacity of the lagging; Beneficios economicos y energeticos en cuartos limpios, caso de estudio: iluminacion natural y capacidad aislante de la envolvente

    Energy Technology Data Exchange (ETDEWEB)

    Torres Rodriguez, Agustin; Morillon Galvez, David [Universidad Nacional Autonoma de Mexico (Mexico)

    2009-01-15

    The objective of the present article is to show the electrical energy saving in clean rooms used to make pharmaceutical products using natural illumination instead of using fluorescent lamps. A study is performed in steady state of the heat load of buildings during three hours in order to observe the thermal its thermal behavior. And it is observed that at 1:00 o'clock p.m. the greatest heat load appears. With the global heat transference coefficients proposed in the official Mexican Norm NOM-008-ENER-2001 the heat load by conduction and convection of the building is estimated. Finally a bimonthly economic study of the energy saving of energy of the air conditioning system was realized with the system of artificial lighting and the system of natural illumination. All this study was realized in a site with temperate climate (Fraccionamiento Industrial Xalostoc, Ecatepec de Morelos, Estado de Mexico). [Spanish] El objetivo del presente articulo es mostrar el ahorro de energia electrica en cuartos limpios utilizados para elaborar productos farmaceuticos utilizando iluminacion natural en ves de utilizar lamparas fluorescentes. Se realiza un estudio en estado estable de la carga de calor de edificios para tres horas con la finalidad de observar el comportamiento termico de este. Y se observa que a las 13:00 horas se presenta la mayor carga de calor. Con los coeficientes globales de transferencia de calor propuestos en la norma oficial mexicana NOM-008-ENER-2001 se estima la carga de calor por conduccion y conveccion del edificio. Finalmente se realizo un estudio economico bimestral del ahorro de energia del sistema de aire acondicionado con el sistema de iluminacion artificial y con el sistema de iluminacion natural. Todo este estudio se realizo en un sitio con clima templado (fraccionamiento industrial Xalostoc, Ecatepec de Morelos Estado de Mexico).

  14. Microbiological monitoring of clean rooms in development of vaccines Monitoramento microbiológico de áreas classificadas em desenvolvimento de vacinas

    Directory of Open Access Journals (Sweden)

    Carla Lílian de Agostini Utescher

    2007-12-01

    Full Text Available The aim of the present work was to evaluate an environmental monitoring program for clean rooms, or classified environments, involved in the filling and quality control of biological products produced by Butantan Institute, São Paulo, Brazil. This monitoring established the quantification, characterization and seasonality of the microorganisms in air and operators and, moreover, determined the alert and action limits. The total detectable microbial number showed some contrasts in installed air purification systems and in the operational impact on adopted procedures. The typical microbial population consisted of Staphylococcus sp, Micrococcus sp, Bacillus sp and Penicillium sp. The highest microorganism concentration occurred during summer and springtime. The established internal alert and action limits supported the operational procedures. Therefore, the environmental monitoring program is recommended for other laboratories involved in the production of vaccines, hyperimmune sera and biopharmaceuticals.O presente trabalho teve por objetivo avaliar um programa de monitoramento microbiológico ambiental para áreas limpas, ou ambientes classificados, envolvidas na produção, envasamento e controle dos imunobiológicos produzidos pelo Instituto Butantan. Este monitoramento permitiu a quantificação, a caracterização e a sazonalidade da população microbiana presente no ar e nos operadores, e a determinação dos limites de alerta e ação. O número total de bactérias detectáveis revelou diferenças nos sistemas de purificação de ar instalados e o impacto operacional ocasionado pelos procedimentos realizados. A população microbiana característica foi composta por bactérias dos gêneros Staphylococcus sp, Micrococcus sp, Bacillus sp e por fungos filamentosos do gênero Penicillium sp. A maior concentração de microrganismos ocorreu nos períodos de verão e primavera. Os limites internos de alerta e ação estabelecidos asseguram os

  15. Assessment of the Forward Contamination Risk of Mars by Clean Room Isolates from Space-Craft Assembly Facilities through Aeolian Transport - a Model Study

    Science.gov (United States)

    van Heereveld, Luc; Merrison, Jonathan; Nørnberg, Per; Finster, Kai

    2016-07-01

    The increasing number of missions to Mars also increases the risk of forward contamination. Consequently there is a need for effective protocols to ensure efficient protection of the Martian environment against terrestrial microbiota. Despite the fact of constructing sophisticated clean rooms for spacecraft assembly a 100 % avoidance of contamination appears to be impossible. Recent surveys of these facilities have identified a significant number of microbes belonging to a variety of taxonomic groups that survive the harsh conditions of clean rooms. These microbes may have a strong contamination potential, which needs to be investigate to apply efficient decontamination treatments. In this study we propose a series of tests to evaluate the potential of clean room contaminants to survive the different steps involved in forward contamination. We used Staphylococcus xylosus as model organism to illustrate the different types of stress that potential contaminants will be subjected to on their way from the spacecraft onto the surface of Mars. Staphylococcus xylosus is associated with human skin and commonly found in clean rooms and could therefore contaminate the spacecraft as a result of human activity during the assembling process. The path the cell will take from the surface of the spacecraft onto the surface of Mars was split into steps representing different stresses that include desiccation, freezing, aeolian transport in a Martian-like atmosphere at Martian atmospheric pressure, and UV radiation climate. We assessed the surviving fraction of the cellular population after each step by determining the integrated metabolic activity of the survivor population by measuring their oxygen consumption rate. The largest fraction of the starting culture (around 70 %) was killed during desiccation, while freezing, Martian vacuum and short-term UV radiation only had a minor additional effect on the survivability of Staphylococcus xylosus. The study also included a simulation

  16. Sources and Effects of AMC in Clean Rooms%净化厂房中气相分子沾污(AMC)的来源和危害

    Institute of Scientific and Technical Information of China (English)

    潘文伟; 蔡蕾

    2012-01-01

      越来越多的研究发现,在半导体圆片加工净化厂房中,除了存在空气悬浮颗粒沾污外,还存在以气相或蒸汽形式存在的分子污染物(Airborne Molecular Contaminants,AMC)。随着特征尺寸(CD)的不断缩小,AMC将会越来越严重地影响圆片加工质量和成品率,并会影响净化厂房内工作人员的身体健康。文章介绍了AMC的分类、来源、危害性、控制标准和方法,希望以此引起人们对AMC的重视,并采取相应的控制措施。%  More and more investigations hanve shown that, as the criticle dimension (CD) continually shrinks, in addition to particle contamination, airborne molecular contaminants (AMC) in clean rooms have a detrimental effect on the process and product yield, as well as on the health of the operators and engineers working in clean rooms. The source, effects, control standards of AMC are described to help understand and take appropriate measures to control AMC.

  17. Investigation of the Contamination Control in a Cleaning Room with a Moving AGV by 3D Large-Scale Simulation

    Directory of Open Access Journals (Sweden)

    Qing-He Yao

    2013-01-01

    Full Text Available The motions of the airflow induced by the movement of an automatic guided vehicle (AGV in a cleanroom are numerically studied by large-scale simulation. For this purpose, numerical experiments scheme based on domain decomposition method is designed. Compared with the related past research, the high Reynolds number is treated by large-scale computation in this work. A domain decomposition Lagrange-Galerkin method is employed to approximate the Navier-Stokes equations and the convection diffusion equation; the stiffness matrix is symmetric and an incomplete balancing preconditioned conjugate gradient (PCG method is employed to solve the linear algebra system iteratively. The end wall effects are readily viewed, and the necessity of the extension to 3 dimensions is confirmed. The effect of the high efficiency particular air (HEPA filter on contamination control is studied and the proper setting of the speed of the clean air flow is also investigated. More details of the recirculation zones are revealed by the 3D large-scale simulation.

  18. Confirmation of the sterilization effect using a high concentration of ozone gas for the bio-clean room.

    Science.gov (United States)

    Iwamura, Takuji; Nagano, Katsunori; Nogami, Toshihiro; Matsuki, Noritomo; Kosaka, Noriyoshi; Shintani, Hideharu; Katoh, Miyoshi

    2013-01-01

    A high-level aseptic environment must be maintained in bio-cleanrooms used for the manufacture of sterile products. In the past, formaldehyde gas was most commonly used to sterilize bio-cleanrooms, but due to strict residual limitations there has been a need to develop a less toxic alternative choice. The authors have developed a revolutionary new sterilization system using a high concentration of ozone gas and used this system to sterilize an actual bio-cleanroom. This system integrates the ozone gas generator with the air conditioning system by proper control. The design specifications for the system included an ozone gas concentration of 200 ppm or more, relative humidity of 80% or more, and a sterilizing time of 120 min. Blow vents and suction ports were placed to ensure a uniform airflow which would extend through the entire room during ozone gas sterilization. Tests regarding long-term material exposure to ozone gas were conducted when the system was introduced to distinguish usable and unusable materials. In an actually constructed cleanroom, simulations were used to predict the evenness of the diffusion of ozone gas concentration and relative humidity during ozone gas sterilization, and measurements of the actual indoor ozone gas concentration, temperature and relative humidity during sterilization revealed that the ozone concentration and relative humidity needed for sterilization had been achieved generally throughout the entire environment. In addition, the CT value (mg/m(3) (=ppm) × min) , derived by multiplying the ozone gas concentration during ozone gas sterilization by the sterilization time, was equal to or greater than the target value of 24 × 10(3) (ppm·min) . When the results of sterilization in a cleanroom were confirmed using a biological indicator (BI) , negative results were obtained at all measurement points, demonstrating that sterilization was being performed effectively in the actual factory at which the ozone gas sterilization system

  19. Room-temperature synthesis of single-phase anatase TiO2 by aging and its self-cleaning properties.

    Science.gov (United States)

    Qi, Kaihong; Xin, John H

    2010-12-01

    A facile process to synthesize single-phase anatase titanium dioxide nanocrystallites at room temperature was presented. The process included a sol-gel reaction in an aqueous media followed by aging at room temperature. The anatase TiO2 was characterized using XRD, TEM and SEM. The cotton fabrics-coated by the anatase nanocrystallites possessed significant photocatalytic self-cleaning properties as demonstrated by their ability to decompose a colorant and degrade red wine and coffee stains, which was equivalent to that of prepared by heating or hydrothermal methods described previously. The anatase TiO2-coated cotton substrate also showed a high UPF rating of 50+, which means excellent UV protection to human wearers. The study of the adhesion between the anatase TiO2 and the cotton substrate showed that even after 20 times of repeated launderings, the-coated substrate was still capable of decomposing stains, which indicated its photocatalytic power, though this was reduced compared to that before laundering. The tensile strength results of the anatase TiO2-coated cotton fabrics indicate that the anatase TiO2 will not damage the cotton substrate even after 20 h of continuous UV irradiation. The method of preparing single-phase anatase TiO2 revealed in this study not only eliminates the need for high temperature processing, which means energy saving, but also broadens its applications to poor acid-resistant and low thermal stability materials such as many of the biomaterials and cellulosic materials.

  20. Investigation of occupation protection of cleaner in clean operation rooms%洁净手术室保洁员职业防护调查与管理

    Institute of Scientific and Technical Information of China (English)

    张红梅; 柴艳红; 薛海丹

    2014-01-01

    OBJECTIVE To understand hospital infection of cleaner in clean operation rooms , awareness of occupation exposure and qualified occupation protection so as to provide specific intervention to avoid occupation exposure of cleaners .METHODS From Dec .2012 to Feb .2013 ,16 cleaners in clean operation rooms were investigated for knowledge related to hospital infection ,harm of occupation exposure and knowledge on occupation protection by means of self-designed questionnaire and interview .RESULTS All cleaner investigated had good knowledge on partition using of cleaning tools ,correct preparation and use of disinfectant and requirements of medical waste collection and storage ,and the cognition rate was 93 .75% ,87 .50% and 81 .25% respectively .The cleaners had good knowledge on that needlestick injuries could cause blood borne infectious disease and the medical waste was dangerous ,and the cognition rate was 56 .25% and 43 .75% .However ,the cognition rate of correct treatment of wounds after injured by needlestick was 0 . They were also lack of knowledge on occupation protection ,and the pass rate of occupation protection was low .CONCLUSION It is necessary for operation manager to take some intervention strategies such as train , educate , supervise and instruct cleaners so as to improve the cognitive level of hospital infection and occupation protection .%目的:了解洁净手术室保洁员医院感染相关知识、职业暴露危害认知率、职业防护合格率,以便针对性的采取干预措施,减少保洁员职业暴露的发生。方法2012年12月-2013年2月采用自行设计的调查表,以问卷与访谈相结合的方法,对16名洁净手术室保洁员进行医院感染相关知识、职业暴露危害的认知、保洁人员职业防护的调查。结果16名保洁员对保洁工具分区使用和终末处置、消毒剂正确配置和使用、医疗废物收集及保存要求的认知率较高,分别为93.75%、87.50%、81

  1. 改进手术室地面清洁洁具清洗方法的效果评价%Evaluation on effectiveness of improved cleaning method for operating room floor mop towel

    Institute of Scientific and Technical Information of China (English)

    陈锐; 李静; 许少珍

    2014-01-01

    Objective To improve cleaning methods of ground towel in operating room ,standardize the cleaning of ground of operating room,prevent and control the occurrence of healthcare-associated infection (HAI),and im-prove management quality.Methods Operating room mops were changed into detachable mops,ground towels were cleaned and disinfected by automated washing machine (mechanical cleaning group ),disinfection effect and time need to finish cleaning between mechanical cleaning group and manual cleaning group were compared.Results The qualified rates of disinfection effect of ground and ground towels in mechanical cleaning group were both 96.67%(29/30),in manual cleaning group was 83.33% (25/30)and 66.67% (20/30)respectively;the time need to complete the cleaning and disinfection of operating ground and batch cleaning of towels in mechanical cleaning group was(1 .91 ±0.37)and (35.00±2.47)minutes respectively,and in mechanical cleaning group was(4.53±1.56 )and (41.00± 5.33)minutes respectively;there was significant difference between two groups (all P<0.01). Conclusion Me-chanically towel cleaning method can effectively improve ground cleaning effectively and shorten cleaning time.%目的:通过改进手术室地面洁具清洗方法,规范地面清洁工作,预防和控制手术室医院感染的发生,提高管理质量。方法将手术室一体式拖把更换为可拆卸式,并应用全自动洗衣机实施地巾机械清洗与消毒(机械清洗组),比较机械清洗组与手工清洗组(手工清洗地巾)的消毒效果及用时。结果机械清洗组在地面及地巾的消毒效果监测中合格率均达96.67%(29/30),而手工清洗组地面及地巾的消毒效果监测合格率分别为83.33%(25/30)、66.67%(20/30);机械清洗组完成手术间清洁消毒及批量清洁地巾的时间分别为(1.91±0.37)min 和(35.00±2.47)min,手工清洗组完成手术间清洁消毒及批量清

  2. Survey of surface contamination of digital equipment in clean operating room Survey of surface contamination of digital equipment in clean operating room%洁净手术室数字化设备表面污染情况调查

    Institute of Scientific and Technical Information of China (English)

    林志敏; 章明阳; 马颖; 杨维泽

    2015-01-01

    目的:了解洁净手术室数字化设备的细菌污染状况,拟定合理的防控措施。方法2014年3月选取我院10间手术间共20个单位的数字化设备(包括电脑主机、键盘、鼠标、显示器、条码扫描及打印机)表面进行细菌分布情况及种类监测,4月采取新的防控措施后再次对该设备进行监测分析。结果3月份共检出44份阳性标本,4月共检出8份阳性标本,差异有统计学意义( P<0.05);3月检测出病原微生物菌19株,4月未检测到各类病原微生物,实施新防控措施前后差异显著。结论洁净手术室内不同区域数字化设备存在不同差异的细菌污染,采取有效的防控措施能够明显改善污染状况。%Objective To explore the condition of bacterial contamination of digitizing equipment in clean operating room, and de-velop reasonable control measures.Methods In march of 2014 , a total of 20 units of the surface of the digital equipment ( including com-puter host, keyboard, mouse, display, barcode scanning and printer) were selected from 10 operating rooms, bacterial distribution and types were monitored, again after April new prevention and control measures were taken to conduct monitoring and analysis of the device.Results 44positivespecimenswerecheckedoutinMarch,eightmasculinespecimenwerecheckedinApril,thedifferencewasstatisticallysignifi-cant (P<0.05), 19 strains of pathogenic microorganisms bacteria were checked out in March, none of pathogenic microorganisms was detec-ted in April, the significant difference before and after the implementation of the new prevention and control measures.Conclusions There exist different bacterial contamination in the different regions digital devices in the clean operating room, effective prevention and control measures can greatly improve the pollution condition.

  3. Application of biofilm cleaners for cleaning endoscopic equipment in operation room%生物膜清洁剂在手术室内镜器械清洗中的应用

    Institute of Scientific and Technical Information of China (English)

    杨坤明; 吴冉; 任素香

    2013-01-01

    Objective To discuss the cleaning effect of biofilm cleaners for the endoscopic equipment,in order to clean the endoscopic equipment in the operation room thoroughly,improve the cleaning quality of surgical instruments in hospital and prevent nosocomial infection.Methods 300 polluted endoscopic equipments were selected in the operation room and were divided into the experimental group and the control group randomly.Then the two groups were dealt with biofilm cleaners and multi-enzyme detergent respectively.At the end of the cleaning step,the cleaning effect were compared between the two groups.Results The passing rate of cleaning in the experimental group was 96.8%,significantly better than that of the control group,which was 78.0%.The difference between two groups had statistical significance.Conclusions Cleaning endoscopic equipment with biofilm cleaners can improve the cleaning effect of the surgical instruments,ensure the cleaning quality of the surgical instruments.%目的 探讨生物膜清洁剂对内镜器械的清洗效果,以彻底清洁手术室内镜器械,提高医院手术器械清洗质量,防止医院感染.方法 选择手术室的污染内镜器械300件,随机分为实验组和对照组各150件,分别用生物膜清洁剂和多酶清洗剂对污染器械进行处理,清洗步骤结束后比较2组清洗效果.结果 采用生物膜清洁剂清洗内镜器械的实验组的清洗合格率为96.8%,明显优于对照组(合格率78.0%),2组比较差异有统计学意义.结论 生物膜清洁剂清洗手术室内镜器械可提高手术器械的清洗效果,保证手术器械清洗质量.

  4. Effect of cleaning and disinfection in dental treatment room%口腔诊疗环境清洁消毒效果的研究

    Institute of Scientific and Technical Information of China (English)

    苏静; 张涛; 赵红

    2012-01-01

    目的 了解北京地区口腔诊疗环境现状,探讨提高口腔诊疗环境清洁消毒效果的方法及监测手段.方法 采用三磷酸腺苷(ATP)生物荧光检测法监测分层随机抽取的125所口腔医疗机构环境表面清洁现状,采用平行对照研究比较卡瓦布和乙醇棉的清洁消毒效果,分析菌落计数法与ATP生物荧光法数值的相关性.结果 采用ATP方法对医师侧操作台面、医师侧灯把手、患者左侧扶手分别对125份标本进行检测,医师侧操作台面合格率为45.6%;卡瓦布和乙醇棉经菌落计数法检测消毒合格率达100.0%,经ATP生物荧光检测法检测,合格率为50.0%;ATP法测定数值(RLU)与菌落计数法所计算的菌落形成单位(CFU)无明确相关性.结论 卡瓦布可以有效用于物体表面清洁消毒,口腔诊疗环境清洁状况需要加强监管,ATP生物荧光检测法可以作为快速监测的手段.%OBJECTIVE To identify the contamination status of general surface in dental treatment room in Beijing and to research on the disinfection and monitoring methods to improve the effect of environment cleaning. METHODS By means of ATP bioluminescence method, the contamination of object surfaces in 125 stratified randomly samples from Beijing dental clinics was evaluated. A parallel control study was conducted to compare the effect of alcohol gauze and CaviWipes. The correlation between the detected data of ATP bioluminescence method and plate culture method was analyzed. RESULTS With ATP bioluminescence method, among 125 groups of dental unit surface samples including light handle aside dentist, panel plate aside dentist and left armrest, the qualified rate in panel plate aside dentist was 45. 6%. With plate culture method, the qualified rate of alcohol gauze and CaviWipes was 100. 0%. The 1g RLU of bioluminescence method was not significantly associated with the lgCFU of plate-culture method. CONCLUSION CaviWipes can be effectively used in the

  5. Effect of laminar flow clean operating room on surgical wound infection rate%层流洁净手术室对手术切口感染的影响研究

    Institute of Scientific and Technical Information of China (English)

    方群

    2013-01-01

    目的 探讨层流洁净手术室对手术切口感染的影响,为不同类型手术的手术室安排及手术切口感染控制提供参考依据.方法 采用回顾性方法对医院2010年1月-2011年6月普通手术室1652台手术以及2011年7月-2012年6月层流洁净手术室842台手术资料分析,比较各类切口在普通手术室和层流洁净手术室施行的手术切口感染率.结果 洁净手术室手术切口总感染率为1.31%,普通手术室切口总感染率为2.66%,洁净手术室切口总感染率低于普通手术室(P<0.05);洁净层流手术室Ⅰ、Ⅱ、Ⅲ类手术切口感染率分别为0、0.40%、5.10%,普通手术室Ⅰ、Ⅱ、Ⅲ类手术切口感染率分别为1.14%、2.48%、5.77%,洁净层流手术室Ⅰ、Ⅱ类切口感染率低于普通手术室(P<0.05);Ⅲ类手术切口感染率同普通手术室差异无统计学意义.结论 层流洁净手术室能够降低Ⅰ、Ⅱ类手术切口感染率,有利于医院感染控制.%OBJECTIVE To investigate the effect of laminar flow clean operating room on the incidence of surgical incision infections so as to provide basis for the arrangement of operating room as well as for the control of surgical incision infections.METHODS Totally 1652 cases of operations in the ordinary operating rooms from Jan 2010 to Jun 2011 and 842 cases of operations in laminar flow clean operating rooms from Jul 2011 to Jun 2012 were enrolled in the study,then the clinical data of the cases were retrospectively analyzed,and the incidence of surgical incision infections was compared between the ordinary operating rooms and the laminar flow clean operating rooms.RESULTS The total incidence rate of surgical incision infections in the ordinary operating rooms was 2.66%,significantly higher than 1.31% in the laminar flow clean operating rooms (P<0.05).In the laminar flow clean operating rooms,the incidence rate of type Ⅰ incision infection was 0%,the type Ⅱ incision

  6. Monitoring and evalution on the envirov mental clean level of hemodlalysis room%血液透析中心环境清洁水平的监测和改善

    Institute of Scientific and Technical Information of China (English)

    唐钦妹; 郭淑霞; 叶亚莉; 黄文碧; 黄向红

    2013-01-01

    Objective Adenosine triphosphate (ATP) bioluminescence and microbiological culture methods were used for evaluation of cleaning procedure changed before or after in hemodialysis room. These provide a real-time and effective method on monitoring and evaluation of the environmental clean level of hemodialysis room. Methods Choose five sites from the hemodiaylsis room and use ATP bioluminescence and microbiological culture methods to monitor and record the clean level of those sites before and after changing clean procedure, comparison of two results and evaluation of a new clean procedure. Results The mean of ATP bioluminescence method before changing clean procedure respectively is 788. 310. 530.600 and 900RLU, after cleaning procedure changed is 176. 130. 120. 220 and 239RLU. The mean of microbiological culture method respectively is 12. 4. 9. 6 and 8cfu, after cleaning procedure changed is 2. 1. 1. 1 and 2cfu. The surface contaminated level of homedialysis room was significantly reduced, the monitoring results of ATP bioluminescence are similar with microbiological culture method. Conclusions Effectively surface cleaning procedure can dramatically reduced the surface contaminated condition, ATP bioluminescence is much more quick and efficient technology used in monitoring and evaluation on the nosocomial environmental clean level.%目的 通过三磷酸腺苷(ATP)荧光监测法和微生物培养法去评价血液透析中心环境清洁程序改进前后的清洁水平变化情况,为血液透析中心环境清洁和监测提供一个实时有效的方法. 方法 选择透析室5个环境位点,通过ATP荧光监测法和微生物培养法去监测5个位点的清洁水平,通过改进现有的清洁方式再次进行监测并比较两次监测结果,评价改进后的清洁程序.结果 改进前5个监测位点ATP测量均值为788、310、530、600和900RLU,改进后清洁程序ATP测量均值176、130、1 20、220和239RLU.改进前微生

  7. Control system and environmental parameters monitoring of the Tandetron Accelerator clean room; Sistema de control y monitoreo de parametros ambientales del cuarto limpio del acelerador Tandetron

    Energy Technology Data Exchange (ETDEWEB)

    Mejia V, M.E.; Garcia H, J.M.; Flores M, J. [ININ, Departamento de Sistemas Electronicos, 52750 La Marquesa, Estado de Mexico (Mexico)]. e-mail: mmejia@nuclear.inin.mx

    2007-07-01

    A control system and monitoring of humidity and temperature implemented by means of a system based on a microcontroller, an intelligent sensor and a stage of power for the actuators handling is described. The change of the levels of reference of the control system and the monitoring of the physical controlled variables can be carried out from any connected computer to a local net or Internet. (Author)

  8. The System Form of Clean Operation Room Class III with Respect to Energy Saving%从节能的角度看III级洁净手术室的系统形式

    Institute of Scientific and Technical Information of China (English)

    李志红

    2012-01-01

    洁净手术部建设中对于III级手术室的空调系统形式一般的设计为一拖三的形式,很明显这不是避免交叉感染的最好形式,有悖于建造洁净手术部来降低手术感染风险的初衷。通过对投资以及运营方面的比对来探讨新的系统形式%The general practice for air-conditioning system of Clean Operation Room Grade III in clean operation department is designed in the form of one-driving-three, which is not the best form to avoid cross-contamination. The new system form was studied with comparision with respect to investment and operation.

  9. Analysis and Solution of Negative Pressure Problem in an Electronic Component Clean Room%某电子元器件净化间内的负压分析与解决方案

    Institute of Scientific and Technical Information of China (English)

    谢裕

    2012-01-01

    The differential pressure requirement of clean room about the electronic component production is introduced in this paper. Then through negative pressure phenomenon analysis of an electronic component clean room, three reasons causing negative pressure are obtained. One reason causing negative pressure is studied by means of qualitative analysis from two aspects of air volume and resistance loss, and the solution is put forward finally.%介绍了电子元器件生产间对净化环境的压差要求,并从某电子元器件净化间产生负压的现象入手,分析了净化间可能产生负压的三种原因,.并就其中一种原因从风量及阻力损失两个方面给出了定性分析,同时,提出了解决方案。

  10. The effects of different disinfectants on polluted surfaces in clean operating room%不同消毒液对洁净手术室污染物体表面消毒效果

    Institute of Scientific and Technical Information of China (English)

    吴建文

    2011-01-01

    目的 比较乙醇、新洁尔灭和含氯消毒剂3种消毒液对洁净手术室污染物体表面的消毒效果.方法 选择万级洁净手术间3间,于非感染手术结束后,先用清水擦拭所有物体表面,再分别用75%的乙醇、0.5%的新洁尔灭和含氯消毒剂擦拭被血液、体液等有机物污染的物体表面,30 min后对物体表面采样,检测菌落数,比较3种消毒液的消毒效果.结果 3种消毒液消毒的物体表面菌落数比较,差异无统计学意义(P>0.05).结论 乙醇、新洁尔灭、含氯消毒剂均可达到洁净手术室物体表面消毒效果.%Objective To compare the effects of ethanol,benzalkonium bromide and chlorine - containing disinfectant on polluted surface in clean operating room.Methods Three rooms of cleanliness class 10 000 were selected.At the end of non - infectious operations,the stuff surfaces which were polluted by blood,body fluids were cleaned firstly by clean water and then wiped by 75% ethanol,0.5%benzalkonium bromide and chlorine -containing disinfectant respectively..After 30 minutes,samples from the different surfaces were collected,and the clones of bacteria were examined,and the effects of the disinfection were compared.Results There was no significant difference among the three disinfectants ( P > 0.05).Conclusions Ethanol,benzalkonium bromide and chlorine - containing disinfectant can all achieve satisfactory disinfection results on the surfaces in clean operating room.

  11. Comparison of the cleaning efficacy of the FKG race system and hand instrument in molar root canal Comparação da eficácia de limpeza entre o sistema FKG race e instrumentos manuais em molares inferiores

    Directory of Open Access Journals (Sweden)

    Carla Renata Sipert

    2006-01-01

    Full Text Available INTRODUCTION AND OBJECTIVE: The aim of this study was to evaluate the ability of root canal cleaning of the RaCe rotary instrumentation system (FKG Dentaire - La-Cheaux-de Fonds - Switzerland, compared to manual filing with Stainless Steel K-files (Maillefer Instruments - Ballaigues - Switzerland. MATERIAL AND METHOD: Twenty extracted human teeth (maxillary molars were selected and their pulp tissue was removed after coronal access. The root canals were filled with a dye (India ink and allowed to dry for 48 hours, followed by establishment of the working length of the mesiobuccal root; then, half of the specimens were instrumented by the modified Oregon technique and the other half were instrumented by crown-down sequence of the RaCe system. After preparation, the teeth were longitudinally sectioned and evaluated according to the amount of remaining dye. RESULTS: Data obtained were registered as numerical scores, and the arithmetic means were compared between groups using the Mann Whitney test. Both techniques were unable to completely clean the interior of the root canals, with a better performance of the manual technique only at the middle third. CONCLUSION: It could be concluded that the RaCe system was able to provide satisfactory cleaning, similar to that obtained by the manual instrumentation technique.Objetivo deste trabalho foi avaliar a capacidade de limpeza de canais radiculares por meio do sistema de instrumentação RaCe (FKG Dentaire - La-Cheaux-de Fonds - Suíça em comparação à instrumentação manual por meio de limas tipo K-File (Maillefer Instruments - Ballaigues - Suíça. Foram selecionados 20 dentes humanos extraídos (molares superiores que tiveram seu conteúdo radicular removido após realização da abertura coronária. Os canais foram preenchidos com corante (tinta nanquim e após 48 horas para secagem, realizou-se a odontometria da raiz mésio-vestibular. Metade dos espécimes foi instrumentada pela técnica de

  12. The effect analysis of concentrated cleaning and disinfection in the supply room to the anesthesia laryngoscope in the operating room%手术室麻醉喉镜供应室集中清洗及消毒效果分析

    Institute of Scientific and Technical Information of China (English)

    卢春红

    2013-01-01

    目的探讨手术室的麻醉喉镜在经过供应室集中清洗、消毒之后的效果,分析其方法的应用性。方法 A组回顾性抽取分析我院于2011年1月至12月经手术室手工清洗、浸泡并消毒的麻醉喉镜200片。B组抽取2012年1月至2013年4月经供应室集中用全自动喷淋式清洗消毒机按标准流程清洗、高压蒸汽灭菌的麻醉喉镜200片。所有的麻醉镜片均采用目测法、带光源的放大镜检测法及细菌培养计数法鉴定消毒效果,并记录镜片的损耗率。结果 A组和B组麻醉喉镜片,目测法、带光源的放大镜检测法及细菌培养计数法合格率分别是95.50%和100.00%、91.00%和98.50%,87.50%和96.50%,均具有显著性差异。麻醉喉镜片损耗率为98.00%和99.31%,不具有显著性差异。结论麻醉喉镜片由供应室集中清洗、消毒灭菌效果优于手工清洗方法。不但保证了麻醉喉镜彻底清洗的效果和灭菌质量,而且人力和物质资源得到了共享,为医院节约了医疗成本,降低医疗风险,保证患者安全。%Objective: To explore effect of concentrated cleaning and disinfection in the supply room to the anesthesia laryngoscope in the operating room, and to analyze the applications of the methods. Methods: 200 pieces of anesthesia laryngoscope which were cleaned manual y, soaked and disinfected were selected in the group A. While 200 pieces of anesthesia laryngoscope which were cleaned and disinfected concentratedly with automatic spray cleaning machine according to standard procedures, high-pressure steam sterilization were selected in the group B. Al anesthesia laryngoscope were identified by the visual method, magnifying glass with light detection and the bacterial culture counting method, and their loss rate were recorded. Results: The pass percent of group A and group B in the verification of the visual method, magnifying glass with light detection and the bacterial culture counting

  13. 洁净手术室医疗废物感染的管理%Management of medical waste in clean operating rooms

    Institute of Scientific and Technical Information of China (English)

    银彩霞; 董薪; 李丽霞; 龚珊; 文玉琴

    2012-01-01

    OBJECTIVE To investigate the management of medical waste in operating rooms so as to avoid secondary infections due to the contamination. METHODS The current status of administration of medical waste was analyzed, the whole management process of medical waste and innocuous disposal were explored. RESULTS Through all the measures, the awareness of the medical staff to the medical waster management was intensified, the classification and recovery rate of the medical waste reached up to 100. 0% , the infections due to leakage and diffusion did not occurred. CONCLUSION Through the establishment of sound organization and the completed management system, clear assignment of the department s duty, and enhancement of coordination and cooperation, the whole process management of medical waste in operating room has been achieved.%目的 探讨医院手术室医疗废物管理方法,防止污物扩散造成的二次感染.方法 分析手术室医疗废物管理现状,探讨医疗废物的全程管理及环境无害化处理.结果 各项措施得到落实,增强了医护人员对医疗废物管理意识,医疗废物分类回收率达100.0%,未发生泄漏、扩散造成感染.结论 通过建立健全组织机构、完善管理机制,明确各部门职责,加强协调与合作,实现了手术室医疗废物的全程管理.

  14. Plasma Cleaning

    Science.gov (United States)

    Hintze, Paul E.

    2016-01-01

    NASA's Kennedy Space Center has developed two solvent-free precision cleaning techniques: plasma cleaning and supercritical carbon dioxide (SCCO2), that has equal performance, cost parity, and no environmental liability, as compared to existing solvent cleaning methods.

  15. 医院洁净手术部空气洁净度监测的效果评价%The evaluation of the cleanliness air monitoring in the hospital clean operating room

    Institute of Scientific and Technical Information of China (English)

    尉永红

    2013-01-01

    Objective Evaluate the monitoring effects of the air cleanliness at operating room of the hospital. Methods The standars and testing methods in the"Hospital Disinfecting Sanitation Standard"(GB15982-1995)have been adopted. Results After strict ,effective and scientific managements made use of the clean operating room of lamina flows, and the successive air monitor by two years, the quantum of existing in the air to meet the Environment Standard Type I. Conclusion Air quality in operating room will be kept in a relatively high standard by applying monitoring system of the air cleanliness at the hospital.%  目的评价医院洁净手术部空气洁净度监测效果。方法依据国家标准《医院洁净手术部建筑技术规范》(GB50333--2002)中规定的标准及检测方法,对我院5个洁净手术间进行每月1次的生物监测。结果洁净手术部实施严格、有效、科学的管理后,通过2年跟踪监测,其空气细菌含量均达到了Ⅰ类环境标准。结论洁净手术部空气洁净度的监测,为我院手术部空气质量的提高提供了有力保障。

  16. Mothers' feelings about breastfeeding their premature babies in a rooming-in facility Sentimientos de madres al amamantar a sus bebés prematuros en sistema de alojamiento conjunto Sentimentos de mães ao amamentarem seus bebês prematuros em sistema de alojamento conjunto

    Directory of Open Access Journals (Sweden)

    Rejane Marie Barbosa Davim

    2010-09-01

    Full Text Available This study aimed at learning about the feelings experienced by mothers while breastfeeding their premature babies in a rooming-in facility, by means of individual interviews with 33 mothers during the period of February to April 2006, at a maternity hospital in Natal/RN/Brazil. The main feelings referred by the mothers regarding their inability to breastfeed their premature babies immediately after delivery were: sorrow, guilt, disappointment, frustration, insecurity, and fear of touching, holding or harming the delicate babies while breastfeeding. However, the mother-child bond that was formed when the baby was discharged from the Neonatal Intensive Care Unit and taken to the rooming-in facility was reflected by feelings of fulfillment, pride, and satisfaction at experiencing the first breastfeeding.Estudio realizado con el objetivo de conocer los sentimientos de madres al amamantar a sus bebés prematuros en Sistema de Alojamiento Conjunto, realizándose entrevistas individuales con 33 madres acompañantes en el período comprendido entre febrero y abril de 2006, en una maternidad escuela de Natal / RN / Brasil. Los principales sentimientos referidos por esas madres resultaron en tristeza, culpa, decepción, frustración, inseguridad, miedo de tocar, asegurar o hasta incluso de perjudicar a sus delicados bebés mientras eran amamantados. No obstante eso, el vínculo creado por madres y bebés cuando los mismos reciben el alta de la Unidad de Terapia Intensiva Neonatal para el Sistema de Alojamiento Conjunto, se manifiesta en los sentimientos de realización y orgullo, los cuales son determinados por la satisfacción de la primera lactancia.Estudo teve o objetivo de conhecer os sentimentos de mães ao amamentarem seus bebês prematuros em Sistema de Alojamento Conjunto. Entrevistas individuais foram realizadas com 33 mães acompanhantes no período de fevereiro a abril de 2006, em uma maternidade-escola de Natal/RN/Brasil. Os principais

  17. The construction of a process line for high efficiency silicon solar cells under clean-room conditions. Final report; Erstellung einer Prozesslinie fuer `High-Efficiency`-Silicium-Solarzellen unter Reinraumbedingungen; Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Aberle, A.; Faller, C.; Grille, T.; Glunz, S.; Kamerewerd, F.J.; Kopp, J.; Knobloch, J.; Klussmann, S.; Lauby, E.; Noel, A.; Paul, O.; Schaeffer, E.; Schubert, U.; Seitz, S.; Sterk, S.; Voss, B.; Warta, W.; Wettling, W.

    1992-08-01

    The aim of this research project was to plan, construct and test a clean-room technology laboratory for the manufacturing of silicon solar cells with 20% efficiency (1.5AM). In addition to the establishment of the laboratory, there existed the case of establishing the material and technological fundamentals of high-efficiency solar cells, testing and optimizing all stages of production as well as constructing test stands for accompanying characterisation work. The following final report describes the construction of the laboratory and characterisation systems, the material elements of high-efficiency solar cells as well as the most important results of solar cell production and optimisation. (orig./BWI) [Deutsch] Erstellung und Erprobung eines Reinraum-Technologielabors fuer die Herstellung von Si-Solarzellen mit Wirkungsgraden von 20% (AM1.5). Neben der Einrichtung des Labors bestand die Aufgabe darin, die physikalischen und technologischen Grundlagen der ``High-efficiency``-Solarzelle zu erarbeiten, alle Prozessschritte zu erproben und zu optimieren, sowie Messplaetze fuer begleitende Charakterisierungsarbeiten zu erstellen. Der vorliegende Abschlussbericht beschreibt den Aufbau der Labor- und Charakterisierungseinrichtungen, die physikalischen Grundlagen der ``High-efficiency``-Solarzelle, sowie die wichtigsten Ergebnisse der Solarzellenherstellung und -optimierung. (orig./BWI)

  18. Standard Practice for Continuous Sizing and Counting of Airborne Particles in Dust-Controlled Areas and Clean Rooms Using Instruments Capable of Detecting Single Sub-Micrometre and Larger Particles

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2007-01-01

    1.1 This practice covers the determination of the particle concentration, by number, and the size distribution of airborne particles in dust-controlled areas and clean rooms, for particles in the size range of approximately 0.01 to 5.0 m. Particle concentrations not exceeding 3.5 106 particles/m3 (100 000/ft 3) are covered for all particles equal to and larger than the minimum size measured. 1.2 This practice uses an airborne single particle counting device (SPC) whose operation is based on measuring the signal produced by an individual particle passing through the sensing zone. The signal must be directly or indirectly related to particle size. Note 1The SPC type is not specified here. The SPC can be a conventional optical particle counter (OPC), an aerodynamic particle sizer, a condensation nucleus counter (CNC) operating in conjunction with a diffusion battery or differential mobility analyzer, or any other device capable of counting and sizing single particles in the size range of concern and of sampling...

  19. The Application of DOP (PAO) Leak Test for Heat Filter in Clean Room%高效过滤器DOP(PAO)检漏法在洁净室中的应用

    Institute of Scientific and Technical Information of China (English)

    梁勇杰; 张勇

    2012-01-01

    This paper baseds on No.5.6.1-No.5.6.13 rules of The Code for Consturction and Acceptance of Cleanroom and the appendix D. And it introduces the leak thory ,leak test, judgments of the rusltes of the heat filter DOP( PAO )of clean room.Meanwhile,it also dissuces the differences of filter and standard of DOP(PAO).%根据GB50591—2010洁净室施工及验收规范中5.6.1-5.6.13及附录D的要求,介绍洁净室中的高效过滤器DOP(PAO)检漏的原理、检测方法、结果判断及处理、检漏周期等内容,并对DOP(PAO)检漏及其标准间的差别的有关问题进行了探讨。

  20. Clean data

    CERN Document Server

    Squire, Megan

    2015-01-01

    If you are a data scientist of any level, beginners included, and interested in cleaning up your data, this is the book for you! Experience with Python or PHP is assumed, but no previous knowledge of data cleaning is needed.

  1. Administração limpa e enxuta em sistemas hidráulicos de colhedoras de cana-de-açúcar Clean and lean administration in hydraulic systems of sugarcane harvesters

    Directory of Open Access Journals (Sweden)

    Mauro Tomazela

    2010-04-01

    Full Text Available Dentre as importantes mudanças nos processos de produção, está à necessidade de garantir sustentabilidade aos empreendimentos. Isso faz prever mudanças na gestão empresarial para adequar-se a um novo modelo, com a inserção dos conceitos de Produção Limpa, Mais Limpa, Enxuta e Manutenção Produtiva Total (MPT. O foco principal deste trabalho foi elaborar uma metodologia que possibilitou aumentar a confiabilidade nos sistemas hidráulicos das colhedoras de cana-de-açúcar, identificando e analisando os modos de falhas, visando à melhoria da qualidade ambiental e socioeconômica em uma indústria sucroalcooleira, promovendo a diminuição significativa do desperdício de óleo hidráulico durante o processo de colheita motomecanizada. O histórico existente no controle do planejamento da empresa, utilizado na Usina sucroalcooleira, permitiu a avaliação do desempenho operacional de colhedoras de cana-de--açúcar durante três safras. Durante esse período, por meio da elaboração e da efetivação de um controle total, acompanharam-se os modos de falhas no sistema hidráulico de cinco colhedoras. Com base na metodologia desenvolvida, elaborou-se um programa computacional para processar os dados obtidos e facilitar a tomada de decisões.Among the important changes in the production processes, it is necessary to guarantee the sustainability of the human enterprises, what makes us to foresee changes in the managerial administration to adapt to a new model, with the insert of the concepts of Clean Production, Cleaner, Lean and Total Productive Maintenance (TPM. The main focus of this work was to elaborate a methodology that made it possible to guarantee the reliability in the waterworks of the sugarcane harvester, identifying and analyzing the manners of flaws, in order to result in the improvement of the environmental and socioeconomic quality in the atmosphere of an industry of sugarcane through the significant decrease of hydraulic

  2. Investigation of influencing factors for bacterial density in air in clean operating room%洁净手术室术间空气细菌密度影响因素的调查

    Institute of Scientific and Technical Information of China (English)

    沈郁; 钱小毛; 冯惠娟; 陈小娣

    2011-01-01

    目的 了解洁净手术室术间空气细菌密度影响因素,探讨相应的护理对策.方法 对5间千级、万级和十万级手术室的45台手术进行动态条件下空气细菌检测,检测方法采用自然沉降法,结果计算后用CFU/m3表示.结果 所有手术间的术前空气含菌量均为0~23 CFU/m3,随着手术时间的延续空气细菌数逐渐增加,不同手术持续时间的术后检测:<1 h组为202~778 CFU/m3,1~2 h组为582~1332 CFU/m3,2~3 h组为672~1993 CFU/m3,<3 h组为713~2108 CFU/m3;不同手术人员数的术后检测:≤4人组为202~471 CFU/m3,5~8人组为355~901 CFU/m3,9~12人组为614~1443 CFU/m3,≥13人组为878~2108 CFU/m3;不同术中开门次数的术后检测:≤6次组为202~328 CFU/m3,7~11次组为562~889 CFU/m3,12~16次组为673~1870 CFU/m3,≥17次组为882~2108 CFU/m3.结论 影响术间空气细菌含量与手术时间长短,室内人员数,以及术间开门的次数有关,为了减缓手术过程空气细菌密度增大趋势,必须加强术间动态条件下的检测和一系列有效的预防措施.%OBJECTIVE To investigate the influencing factors of bacteria density in clean operating room environment and discuss the corresponding nursing measures. METHODS Air bacteria density of in 5 operating room (thousand level, ten thousand level, hundred thousand level) under dynamical condition in which 45 operations were undertaken was tested by means of natural precipitation method, and the result was named with CFU/m3. RESULTS The bacteria density in operating room before the surgery was between 0 to 23 CFU/m3. The number of bacteria was increased with the operating-time. Postoperative detection to surgery duration showed that, the bacteria density after surgery was 202~778 CFU/m3 ; in less than 1 hour group 1 to 2 hours group 582~ 1332 CFU/m3; 2 to 3 hours group 672~1993 CFU/m3 and more than 3 hours group 713~2108 CFU/m3. The postoperative detection to different

  3. Identificação das intervenções de enfermagem no Sistema de Alojamento Conjunto Identificación de las intervenciones de enfermería en Sistema de Alojamiento Conjunto Nursing intervention identification in rooming-in

    Directory of Open Access Journals (Sweden)

    Alda Valéria Neves Soares

    2010-06-01

    Full Text Available Diante da escassez de parâmetros que possibilitem conhecer a carga de trabalho existente no Sistema de Alojamento Conjunto (SAC, torna-se necessário identificar as atividades de enfermagem na assistência ao binômio mãe-filho. O estudo teve como objetivos: identificar as atividades de enfermagem realizadas no Alojamento Conjunto do HU-USP; classificar as atividades em intervenções de enfermagem, segundo a Nursing Intervention Classification (NIC, e validar as intervenções. O levantamento das atividades foi realizado por meio dos registros e da observação direta da assistência de enfermagem, em todos os turnos. O conteúdo das intervenções foi validado com as enfermeiras da unidade, por meio da técnica de oficina de trabalho. Identificaram-se 43 intervenções diretas e indiretas de enfermagem, atividades associadas e atividades pessoais da equipe. O instrumento construído com as intervenções/atividades possibilitará, em futuros estudos, correlacionar o tempo despendido na execução dessas intervenções e, assim, propor parâmetros no dimensionamento de profissionais de enfermagem necessários ao SAC.Ante la falta de parámetros que posibiliten conocer la carga de trabajo existente en el Sistema de Alojamiento Conjunto (SAC, se vuelve necesario identificar las actividades de enfermería en la atención del binomio madre-hijo. El estudio tuvo como objetivos: identificar las actividades de enfermería efectuadas en la unidad Alojamiento Conjunto del HU-USP, clasificar las actividades en intervenciones de enfermería, de acuerdo con el Nursing Intervention Classification NIC y validar las intervenciones. El relevamiento de las actividades fue realizado a través de los registros y de la observación directa de la atención de enfermería en todos los turnos. El contenido de las atenciones fue validado con las enfermeras de la unidad, utilizándose la técnica de oficina de trabajo. Fueron identificadas 43 intervenciones directas

  4. Hypoxia Room

    Data.gov (United States)

    Federal Laboratory Consortium — The Hypoxia Room is a 8x8x8 ft. clear vinyl plastic and aluminum frame construction enclosure located within USAREIM laboratory 028. The Hypoxia Room (manufactured...

  5. Air Cleaning Technologies

    Science.gov (United States)

    2005-01-01

    Executive Summary Objective This health technology policy assessment will answer the following questions: When should in-room air cleaners be used? How effective are in-room air cleaners? Are in-room air cleaners that use combined HEPA and UVGI air cleaning technology more effective than those that use HEPA filtration alone? What is the Plasmacluster ion air purifier in the pandemic influenza preparation plan? The experience of severe acute respiratory syndrome (SARS) locally, nationally, and internationally underscored the importance of administrative, environmental, and personal protective infection control measures in health care facilities. In the aftermath of the SARS crisis, there was a need for a clearer understanding of Ontario’s capacity to manage suspected or confirmed cases of airborne infectious diseases. In so doing, the Walker Commission thought that more attention should be paid to the potential use of new technologies such as in-room air cleaning units. It recommended that the Medical Advisory Secretariat of the Ontario Ministry of Health and Long-Term Care evaluate the appropriate use and effectiveness of such new technologies. Accordingly, the Ontario Health Technology Advisory Committee asked the Medical Advisory Secretariat to review the literature on the effectiveness and utility of in-room air cleaners that use high-efficiency particle air (HEPA) filters and ultraviolet germicidal irradiation (UVGI) air cleaning technology. Additionally, the Ontario Health Technology Advisory Committee prioritized a request from the ministry’s Emergency Management Unit to investigate the possible role of the Plasmacluster ion air purifier manufactured by Sharp Electronics Corporation, in the pandemic influenza preparation plan. Clinical Need Airborne transmission of infectious diseases depends in part on the concentration of breathable infectious pathogens (germs) in room air. Infection control is achieved by a combination of administrative, engineering

  6. Sistemas audiovisuales

    OpenAIRE

    Tarrés Ruiz, Francisco

    2000-01-01

    Conté: 1. Televisión analógica y digital El libro presenta una descripción detallada de los diferentes sistemas de televisión analógica y digital e incluye un análisis exhaustivo de numerosos aspectos tecnológicos e históricos, siempre desde una perspectiva sistemática y generalista dirigida tanto a estudiantes universitarios como a técnicos de grado superior. Tras una introducción a los sistemas de comunicación visual, en la que se analizan las distintas etapas de la conversión de una...

  7. Room Acoustics

    Science.gov (United States)

    Kuttruff, Heinrich; Mommertz, Eckard

    The traditional task of room acoustics is to create or formulate conditions which ensure the best possible propagation of sound in a room from a sound source to a listener. Thus, objects of room acoustics are in particular assembly halls of all kinds, such as auditoria and lecture halls, conference rooms, theaters, concert halls or churches. Already at this point, it has to be pointed out that these conditions essentially depend on the question if speech or music should be transmitted; in the first case, the criterion for transmission quality is good speech intelligibility, in the other case, however, the success of room-acoustical efforts depends on other factors that cannot be quantified that easily, not least it also depends on the hearing habits of the listeners. In any case, absolutely "good acoustics" of a room do not exist.

  8. Sistema Solar

    OpenAIRE

    Federación de Asociaciones de Astronomía Cielo de Comellas

    2004-01-01

    Lección sobre el Sistema Solar. Curso de Astronomía Básica, segunda edición, impartido por los miembros de la Federación de Asociaciones de Astronomía Cielo de Comellas. Casa de la Ciencia, sábados, del 24 de septiembre al 22 de octubre de 2011

  9. Basis for the life cycle assessment (LCA) of cleaning-in-place systems in milk processing plants; Bases para el analisis de ciclo de vida de los sistemas de limpieza in situ en plantas de la industria lactea

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Barral, S.; Laca Perez, A.; Gutierrez Lavin, A.; Diaz Fernandez, M.; Rendueles de la Vega, M.; Iglesias Gonzalez, E.

    2006-07-01

    Milk processing requires high hygienic operations in order to assure safe products of high quality and suitable for human diet. The cleaning operations that take place during milk processing, do cause environmental impact, because of the high volume of wastewater generated, which is contaminated with rests of milk, detergents and other chemical products. The life cycle assessment of cleaning operations can be a powerful tool to evaluate the environmental impact associated with different operation methodologies. In this work, two current alternatives are studied, by means of operational data of a dairy plant. (Author) 7 refs.

  10. Disinfectants used for environmental disinfection and new room decontamination technology.

    Science.gov (United States)

    Rutala, William A; Weber, David J

    2013-05-01

    Environmental contamination plays an important role in the transmission of several key health care-associated pathogens. Effective and thorough cleaning/disinfecting of the patient environment is essential. Room decontamination units (such as ultraviolet-C and hydrogen peroxide systems) aid in reducing environmental contamination after terminal room cleaning and disinfection.

  11. Clean catch urine sample

    Science.gov (United States)

    ... specimen; Urine collection - clean catch; UTI - clean catch; Urinary tract infection - clean catch; Cystitis - clean catch ... LE, Norrby SR. Approach to the patient with urinary tract infection. In: Goldman L, Schafer AI, eds. Goldman-Cecil ...

  12. 7 CFR 58.413 - Cutting and packaging rooms.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Cutting and packaging rooms. 58.413 Section 58.413....413 Cutting and packaging rooms. When small packages of cheese are cut and wrapped, separate rooms shall be provided for the cleaning and preparation of the bulk cheese and for the cutting and...

  13. Quick and clean cloning.

    Science.gov (United States)

    Thieme, Frank; Marillonnet, Sylvestre

    2014-01-01

    Identification of unknown sequences that flank known sequences of interest requires PCR amplification of DNA fragments that contain the junction between the known and unknown flanking sequences. Since amplified products often contain a mixture of specific and nonspecific products, the quick and clean (QC) cloning procedure was developed to clone specific products only. QC cloning is a ligation-independent cloning procedure that relies on the exonuclease activity of T4 DNA polymerase to generate single-stranded extensions at the ends of the vector and insert. A specific feature of QC cloning is the use of vectors that contain a sequence called catching sequence that allows cloning specific products only. QC cloning is performed by a one-pot incubation of insert and vector in the presence of T4 DNA polymerase at room temperature for 10 min followed by direct transformation of the incubation mix in chemo-competent Escherichia coli cells.

  14. Discussion on the application of alkaline cleaner in cleaning quality of disinfection supply room%碱性清洗剂在消毒供应室清洗质量中的应用

    Institute of Scientific and Technical Information of China (English)

    范文玲

    2015-01-01

    Objective To compare the effects of alkaline cleaner and multi enzyme cleaner in equipment cleaning quality.Methods The use of medical devices for the operation of homogeneous pollution from May 2014 to August 2014. Random sample of 1020 parts, The equipment of the pollution was randomly divided into 510 groups and 510 control groups, The test group and the con-trol group were using the same brand lotion, Control group with multi enzyme detergent, Test group with alkaline detergent.Quality inspection after instrument cleaning, Comparison of amplification was observed by visual method under microscope after cleaning quality by five times with light. Results By washing quality inspection, The washing quality of the test group was better than that of the control group by using the alkaline cleaner. The difference between the two groups was statistically significant(P<0.05). Conclusion The alkaline cleaner can save manpower, material resources and financial resources, Reduce reuse device loss, Re-duce medical costs, And it can guarantee the best cleaning quality of reusable equipment. So as to ensure the safety of the hospital.%目的:探讨碱性清洗剂与多酶清洗剂对器械清洗质量的效果。方法:选择2014年5-8月同质污染的手术使用后医疗器械,随机抽取1020件,将污染的器械随机分为试验组510件和对照组510件。试验组与对照组均使用同一品牌的洗剂,对照组洗剂为多酶清洗剂,试验组洗剂为碱性清洗剂。器械清洗后的质量检测,经五倍带光源放大镜下采用目测方式进行观察后进行清洗质量的比较。结果通过清洗质量检测,使用碱性清洗剂的试验组清洗质量优于多酶清洗剂的对照组清洗质量,两组比较差异具有统计学意义(P<0.05)。结论碱性清洗剂可以节省人力、物力、财力,减少复用器械的耗损,降低医疗成本,又能保证复用器械的最佳清洗质量,从而保障医院的安全质量。

  15. Measuring quality indicators in the operating room: cleaning and turnover time Mensuración de indicadores de calidad en un centro quirúrgico: tiempo de limpieza e intervalo entre cirugías Mensuração de indicadores de qualidade em centro cirúrgico: tempo de limpeza e intervalo entre cirurgias

    Directory of Open Access Journals (Sweden)

    Marli de Carvalho Jericó

    2011-10-01

    Full Text Available This exploratory-descriptive study was carried out in the Surgical Center Unit of a university hospital aiming to measure time spent with concurrent cleaning performed by the cleaning service and turnover time and also investigated potential associations between cleaning time and the surgery's magnitude and specialty, period of the day and the room's size. The sample consisted of 101 surgeries, computing cleaning time and 60 surgeries, computing turnover time. The Kaplan-Meier method was used to analyze time and Pearson's correlation to study potential correlations. The time spent in concurrent cleaning was 7.1 minutes and turnover time was 35.6 minutes. No association between cleaning time and the other variables was found. These findings can support nurses in the efficient use of resources thereby speeding up the work process in the operating room.Este estudio exploratorio y descriptivo fue conducido en la Unidad de Centro Quirúrgico de un hospital de enseñanza teniendo por objetivos mensurar el tiempo utilizado para limpieza concurrente en sala de operación (por el Servicio de Higiene y Limpieza y el intervalo entre las cirugías; e, investigar las asociaciones entre: tiempo de limpieza, porte de la cirugía, especialidad de la cirugía, período de ocurrencia y tamaño de la sala. El estudio fue constituido de 101 casos de limpieza (estudio de tiempo de limpieza y 60 cirugías (estudio de intervalo entre cirugías. El método de Kaplan-Meier fue utilizado para el análisis del tiempo y la correlación de Pearson para el estudio de las asociaciones. El tiempo promedio de limpieza concurrente de la sala fue de 7,1 minutos y el del intervalo entre cirugías de 35,6 minutos. No fue encontrada correlación entre el tiempo de limpieza y las demás variables. Estos hallazgos instrumentalizan a los enfermeros en el uso eficiente de recursos, agilizando el proceso de trabajo en el Centro Quirúrgico.Este estudo exploratório-descritivo foi

  16. Occupational dosimetry in real time hemodynamic rooms. utility of the system Dose-aware as a training tool; Dosimetria ocupacional en tiempo real en salas de hemodinamica. Utilidad del Sistema Dose-Aware como herramienta formativa

    Energy Technology Data Exchange (ETDEWEB)

    Pinto Monedero, M.; Rodriguez Cobo, C.; Pifarre Martinez, X.; Ruiz Martin, J.; Barros Candelero, J. M.; Goicolea Ruigomez, J.; Diaz Blaires, G.; Garcia Lunar

    2014-02-01

    This paper presents the results from a study in a real time dosimetry system used in the catheter laboratory room of our center. The objective was to know the occupational doses per procedure, on the one hand, and, on the other hand, to evaluate its utility as a learning tool for radiation protection purposes with the simultaneous video recording of the interventions. 83 diagnostic and therapeutic procedures were analyzed, and an average dose per procedure of 0,37 {mu}Sv and 0,10 {mu}Sv for the main cardiologist and nurse were obtained, respectively. 36 of these interventions were also recorded and the images were synchronized with the dosimetric information stored and the dosimetry system. The findings were presented to the interventional cardiology team in a learning session. They showed a high level of satisfaction with this new method of optimizing the occupational doses through a customized learning session. (Author)

  17. Evaluation of corrosiveness grade of the main pipeline system within the machine-room of the Cen Juragua; Evaluacion del grado corrosivo de los principales sistemas de tuberias de la sala de maquinas de la CEN Juragua

    Energy Technology Data Exchange (ETDEWEB)

    Camacho C, J.; Corvo P, F. [Central Electronuclear de Juragua, Cuba (Cuba)

    1998-12-31

    It is realized a study of the corrosion process and the products formed over the carbon steel in different points of the machine-room of the Electronuclear plant of Juragua (Cuba) particularly in the pipelines considering the specific characteristics of corrosion under roof which has been less studied. The determination of corrosiveness grade was carried out by gravimetric methods (lost and gain weight) in the different coats of the machine-room not existing a correlation between them in according to results with those ones obtained by Infrared Spectroscopy, in which there is not a correlation between the band intensities (lepidocrocite/ goethite) and the corrosion; however both explain different parts of corrosive process. Also it is realized the corrosion products analysis by chemical methods and by Atomic Absorption Spectrometry, obtaining the concentration of the major anions and cations of importance for the corrosion, not existing a meaning correlation between them and the corrosion velocity by what it was determined the absorption isotherms, obtaining as result a microporous structure in the formed oxides which was capable to retain and to absorb water and pollutants which could be this the main cause of corrosion. By analyzing the high concentration of iron and the low concentration of the remainder anions and cations it is possible to make the traditional chemical washes which are less expensive and greater effectiveness. All the obtained results are very important to assure the conditions of the pipelines systems installed at the presence of Government and Foreign organizations which are interested for the protection and conservation measures in the pipelines system. (Author)

  18. Mothers' feelings about breastfeeding their premature babies in a rooming-in facility Sentimientos de madres al amamantar a sus bebés prematuros en sistema de alojamiento conjunto Sentimentos de mães ao amamentarem seus bebês prematuros em sistema de alojamento conjunto

    OpenAIRE

    Rejane Marie Barbosa Davim; Bertha Cruz Enders; Richardson Augusto Rosendo da Silva

    2010-01-01

    This study aimed at learning about the feelings experienced by mothers while breastfeeding their premature babies in a rooming-in facility, by means of individual interviews with 33 mothers during the period of February to April 2006, at a maternity hospital in Natal/RN/Brazil. The main feelings referred by the mothers regarding their inability to breastfeed their premature babies immediately after delivery were: sorrow, guilt, disappointment, frustration, insecurity, and fear of touching, ho...

  19. 清洁型免水洗常温锰钙钡系磷化液的研究%Study on Cleaning and Free-washing Mn-Ca-Ba Phosphating Solution at Room Temperature

    Institute of Scientific and Technical Information of China (English)

    刘迎新; 余取民; 刘婷琛; 何协华

    2013-01-01

    以磷酸二氢锰、硝酸钙、硝酸钡、钼酸钠等为原料配制锰钙钡系磷化液,对Q235钢铁试片进行常温磷化,磷化后免水洗,自然干燥3h以上,获得了彩色锰钙钡系磷化膜.分析了磷化膜的形貌和组成,考察了磷化液pH值、磷化温度、磷化时间、磷化量等工艺条件对磷化膜性能的影响.结果表明,在磷化液pH值2.3 ~2.8、磷化温度5 ~40℃下浸渍磷化8~ 10 min,可生成连续、致密且颗粒细小的免水洗锰钙钡系磷化膜;磷化膜由Fe,Mn,Ca,Ba的磷酸盐及少量钼酸盐等组成,耐硫酸铜溶液腐蚀时间>85 s,膜质量0.9 g/m2左右,喷涂铁红环氧底漆后的涂层附着力达1级.%Q235 Steel specimen was phosphated at room temperature in the Mn-Ca-Ba phosphating solution consisting of manganese dihydrogen phosphate, calcium nitrate, barium nitrate and sodium molybdate. Washing-free, colorful phosphate coating was formed after natural drying for 3 hours. The effect of pH value, temperature, treatment time and the lifetime of phosphating solution on the properties of the phosphate coating was investigated. Moreover, the morphology and component of the phosphate coating were analyzed. The results show that continuous and compact phosphate coating is obtained when the specimen is phosphated for 8 ~ 10 min under 5 ~40 ℃ with phosphating solution, whose pH value is 2. 3 ~ 2. 8. The particles of the phosphate coating are very fine. The phosphating coating is composed of phosphate of Fe, Mn, Ca and Ba and a little of molybdate. The time of copper sulphate solution corrosion resistance is more than 85 s, and the weight of coating is around 0. 9 g/ m2. The adhesion of the coating reaches 1 grade after being sprayed with iron-red epoxy primer.

  20. Evaluation of air cleaning technologies existing in the Danish market

    DEFF Research Database (Denmark)

    Ardkapan, Siamak Rahimi; Afshari, Alireza; Bergsøe, Niels Christian

    2014-01-01

    the ozone level significantly in the room. Moreover, they can cause generation of ultrafine particles and consequently increase ultrafine particle concentration in the room. The study suggests using a mechanical filter with low pressure drop as a recommended air cleaning technology in order to remove...

  1. Los Sistemas Peatonales Como Sistemas De Transporte

    Directory of Open Access Journals (Sweden)

    Lindsay Álvarez Pomar

    2015-01-01

    Full Text Available Los sistemas peatonales han cobrado importancia dentro de los sistemas de movilidad debido al aumento de los viajes peatonales. Este aumento se ha debido a la concientización de las personas sobre las ventajas de caminar, al aumento del uso de los sistemas de transporte público y en algunos casos a los escasos recursos económicos. En la última década, los sistemas peatonales han sido incluidos en la planeación de movilidad de algunas ciudades. Sin embargo, su definición formal carece del despliegue de sus componentes, así como del análisis de las interrelaciones entre los mismos. Se presenta una propuesta que puede servir de base para su definición formal, con el fin de ser usada para su análisis y diseño. Se concluye que las definiciones actuales no cubren todos los aspectos clave de los sistemas peatonales, para que puedan ser un buen soporte para la toma de decisiones sobre este tipo de sistemas y se distinguenlos componentes estructurales que se consideran importantes.

  2. Sposobnost opstanka informacionih sistema

    OpenAIRE

    Bosko Rodic; Dejan Vuletic

    2005-01-01

    U radu je opisan znacaj i trend razvoja informacionih sistema u savremenom drustvu, a definisani su i drugi znacajni pojmovi radi boljeg razumevanja problema. Prikazana su i cetiri aspekta resenja sposobnosti opstanka informacionih sistema koje predlaze Computer Emergency Response Team (CERT).

  3. Locker Room Talk.

    Science.gov (United States)

    Fickes, Michael

    1999-01-01

    Examines the trends in college and university sports and recreation center locker rooms as envisioned by a specialist. Features of the modern locker room and the different levels of locker room design are explained. Final comments discuss whether college and university facility managers are inclined to move to high-end locker rooms. (GR)

  4. Airing 'clean air' in Clean India Mission.

    Science.gov (United States)

    Banerjee, T; Kumar, M; Mall, R K; Singh, R S

    2016-12-30

    The submission explores the possibility of a policy revision for considering clean air quality in recently launched nationwide campaign, Clean India Mission (CIM). Despite of several efforts for improving availability of clean household energy and sanitation facilities, situation remain still depressing as almost half of global population lacks access to clean energy and proper sanitation. Globally, at least 2.5 billion people do not have access to basic sanitation facilities. There are also evidences of 7 million premature deaths by air pollution in year 2012. The situation is even more disastrous for India especially in rural areas. Although, India has reasonably progressed in developing sanitary facilities and disseminating clean fuel to its urban households, the situation in rural areas is still miserable and needs to be reviewed. Several policy interventions and campaigns were made to improve the scenario but outcomes were remarkably poor. Indian census revealed a mere 31% sanitation coverage (in 2011) compared to 22% in 2001 while 60% of population (700 million) still use solid biofuels and traditional cook stoves for household cooking. Further, last decade (2001-2011) witnessed the progress decelerating down with rural households without sanitation facilities increased by 8.3 million while minimum progress has been made in conversion of conventional to modern fuels. To revamp the sanitation coverage, an overambitious nationwide campaign CIM was initiated in 2014 and present submission explores the possibility of including 'clean air' considerations within it. The article draws evidence from literatures on scenarios of rural sanitation, energy practises, pollution induced mortality and climatic impacts of air pollution. This subsequently hypothesised with possible modification in available technologies, dissemination modes, financing and implementation for integration of CIM with 'clean air' so that access to both sanitation and clean household energy may be

  5. Preperation for a Clean Surface

    Directory of Open Access Journals (Sweden)

    Aurimas Ralys

    2012-12-01

    Full Text Available The article reviews techniques for preparing clean surfaces used in the manufacturing process, considers the types of clean surfaces and their role in modern production and provides the classification methods of arranging such surfaces. The paper also discusses the principles of methods for solvent cleaning, aqueous cleaning, ultrasonic cleaning, precision cleaning and mechanical cleaning. The study focuses on the possibility of adjusting a clean surface using a water flow, including cavitation.Article in Lithuanian

  6. Preperation for a Clean Surface

    Directory of Open Access Journals (Sweden)

    Aurimas Ralys

    2013-02-01

    Full Text Available The article reviews techniques for preparing clean surfaces used in the manufacturing process, considers the types of clean surfaces and their role in modern production and provides the classification methods of arranging such surfaces. The paper also discusses the principles of methods for solvent cleaning, aqueous cleaning, ultrasonic cleaning, precision cleaning and mechanical cleaning. The study focuses on the possibility of adjusting a clean surface using a water flow, including cavitation.Article in Lithuanian

  7. Evaluation of an automated room decontamination device using aerosolized peracetic acid.

    Science.gov (United States)

    Mana, Thriveen S C; Sitzlar, Brett; Cadnum, Jennifer L; Jencson, Annette L; Koganti, Sreelatha; Donskey, Curtis J

    2017-03-01

    Because manual cleaning is often suboptimal, there is increasing interest in use of automated devices for room decontamination. We demonstrated that an ultrasonic room fogging system that generates submicron droplets of peracetic acid and hydrogen peroxide eliminated Clostridium difficile spores and vegetative pathogens from exposed carriers in hospital rooms and adjacent bathrooms.

  8. Il Sistema Costituzionale Italiano

    OpenAIRE

    2015-01-01

    Conferencia sobre el sistema constitucional italiano,centrándose en la forma de gobierno de Italia y sus principales instituciones. Tres fueron los perfiles en los que la ponente hizo hincapié: la relación entre el Gobierno y el Parlamento; las funciones desempeñadas por los partidos políticos en el sistema representativo italiano y las leyes electorales que a lo largo de la historia republicana del país han reglamentado el sistema electoral. I...

  9. Cleaning and surface properties

    CERN Document Server

    Taborelli, M

    2007-01-01

    Principles of precision cleaning for ultra high vacuum applications are reviewed together with the techniques for the evaluation of surface cleanliness. Methods to verify the effectiveness of cleaning procedures are discussed. Examples are presented to illustrate the influence of packaging and storage on the recontamination of the surface after cleaning. Finally, the effect of contamination on some relevant surface properties, like secondary electron emission and wettability is presented.

  10. Clean Energy Progress Report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-07-01

    For the past several years, the IEA and others have been calling for a clean energy revolution to achieve global energy security, economic growth and climate change goals. This report analyses for the first time progress in global clean energy technology deployment against the pathways that are needed to achieve these goals. It provides an overview of technology deployment status, key policy developments and public spending on RDD&D of clean energy technologies.

  11. Sistema de arbitraje

    OpenAIRE

    2015-01-01

    Con el propósito de garantizar la calidad de las publicaciones de la Revista Científica Virtual  Horizonte Empresarial, en el presente volumen 2 N° 2, 2015, queda estipulado el siguiente sistema de arbitraje.

  12. The effect of terminal cleaning on environmental contamination rates of multidrug-resistant Acinetobacter baumannii.

    Science.gov (United States)

    Strassle, Paula; Thom, Kerri A; Johnson, J Kristie; Johnsonm, J Kristie; Leekha, Surbhi; Lissauer, Matthew; Zhu, Jingkun; Harris, Anthony D

    2012-12-01

    We evaluated the prevalence of multidrug-resistant Acinetobacter baumannii environmental contamination before and after discharge cleaning in rooms of infected/colonized patients. 46.9% of rooms and 15.3% of sites were found contaminated precleaning, and 25% of rooms and 5.5% of sites were found contaminated postcleaning. Cleaning significantly decreased environmental contamination of A baumannii; however, persistent contamination represents a significant risk factor for transmission. Further studies on this and more effective cleaning methods are needed.

  13. Locker Room Design Trends.

    Science.gov (United States)

    Wiens, Janet

    2001-01-01

    Examines how today's college and university athletic locker rooms have become sophisticated recruiting tools that rival many professional facilities. Locker room design and location and their level of furniture, finishes, and equipment are discussed as is the trend for more environmentally friendly locker rooms. (GR)

  14. Mechanical cleaning of graphene

    NARCIS (Netherlands)

    Goossens, A.M.; Calado, V.E.; Barreiro, A.; Watanabe, K.; Taniguchi, T.; Vandersypen, L.M.K.

    2012-01-01

    Contamination of graphene due to residues from nanofabrication often introduces background doping and reduces electron mobility. For samples of high electronic quality, post-lithography cleaning treatments are therefore needed. We report that mechanical cleaning based on contact mode atomic force mi

  15. Prizes awarded in fiscal 1999 by the Minister for International Trade and Industry on factories having applied excellent energy management. Energy conservation by installing fuel cell power generation facilities utilizing methane gas generated from waste water treatment plants / Improvements toward a clean room and energy saving air conditioning system; 1999 nendo energy kanri yuryo kojo tsusho sangyo daijin hyosho jusho. 1999 nendo shigen energy sho chokan hyosho jusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-04-01

    In order to achieve energy conservation in a waste water treatment plant in a brewery factories, an anaerobic treatment facility was introduced, and a fuel cell power generation facility effectively utilizing methane gas generated from the anaerobic waste water treatment plant was installed. This has resulted in large reduction in the operating number of blowers in the waste water treatment facility of activated sludge system. In addition, electric power, steam, and hot water generated from the fuel cells are effectively utilized as the factory utility. In energy conservation in an optical communication device manufacturing factory, the fan filter unit system was adopted, having been changed from the circulation air conditioner, a conventional type air conditioning system. The present system is a circulation system integrating the fan with the filter, making it possible to circulate air in the room to perform control of temperature, humidity, and dust in a clean room. Thus, the system has eliminated the circulating air conditioner, and reduced the air conditioner capacity by 42% and power consumption by 58.6% compared with those in the conventional circulation system. (NEDO)

  16. Cleaning must be well planned; Rengjoeringsopplegget maa planlegges

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    Both detergents and water may damage painted and varnished surfaces in the long run. It is therefore important to choose the right cleaning method once the rooms are put to use. It is essential that a cleaning method be found that does not require great quantities of chemicals. Professional cleaning implies that a program is used that describes in detail the cleaning operation in each room. Materials used in walls often do not tolerate much moisture. If such components are cleaned by means of too much water to which is added detergents, they may swell. These walls are exposed above all the first time they are cleaned because those doing the cleaning are not aware of the situation. Some of the detergents in current use contain hazardous components. It is very important to know the individual detergent's contents of volatile components as these may cause damage. Some detergents may lead to deterioration of the surface if incorrectly used. Some contain perfume or dyes that may develop allergies. Thus, detergents must be selected with due consideration of both the subject and the personnel. Declaration and user instruction is necessary.

  17. A Commercial IOTV Cleaning Study

    Science.gov (United States)

    2010-04-12

    quite clean and had a refreshing scent . The medium soiled garments (30%) also looked reasonably clean after one wash. The heavily soiled garments...and Solvair® Cleaning in cleaning soiled Improved Outer Tactical Vests (IOTV). Computer-controlled Wet Cleaning coupled with the use of LANADOL...to clean soiled IOTVs. Soldier Product Support Integration Directorate, ILSC U.S. Army Soldier Systems Center 15 Kansas Street, Natick, MA 01760

  18. Sistema detector d'incendis WSN

    OpenAIRE

    Domínguez López, Emiliano

    2012-01-01

    Sistema detector d'incendis aprofitant una xarxa de sensors sense fils (WSN) mitjançant un sistema encastat. Sistema detector de incendios aprovechando una red de sensores inalámbricos (WSN) mediante un sistema empotrado.

  19. Envejecimiento del sistema cardiovascular

    OpenAIRE

    2005-01-01

    Las principales características del envejecimiento del sistema cardiovascular reflejan cambios anatómicos y estructurales a nivel de la pared de los vasos, la relajación miocárdica, el llenado ventricular y la respuesta a las catecolaminas . Muchos de los cambios funcionales asociados con la edad están relacionados con estos fenómenos. Esta revisión describe los cambios relacionados con el envejecimiento a nivel estructural y funcional del sistema cardiovascular, sus posibles factores etiológ...

  20. Sistema Internacional de Medidas

    OpenAIRE

    2015-01-01

    La adopcion del Sistema Intemacional de unidades hace necesario que los profesores y maestros lo conozcan y sepan usarlo.La enseiianza de las ciencias, y en especial la didactica de la fisica, se simplifica con Ia adopcion de un sistema unico de unidades. El estudio de Ia mecanica se facilita notablemente y en los tópicos -de calor solo es necesario presentar el julio en vez de Ia caloria y adoptar la escala Kelvin de temperaturas, en tanto que la óptica no requiere de ningin cambio.

  1. El Sistema inspirerede projekter

    DEFF Research Database (Denmark)

    Holst, Finn; Chemi, Tatiana

    Rapporten er resultat af pilotprojektet ”Forundersøgelse El Sistema DK” gennemført af Ph.D. Finn Holst (DPU, Aarhus Universitet) og Ph.D. Tatiana Chemi (Aalborg Universitet) i 2015. I rapporten indgår desuden bidrag fra Sofie Holm, Sara Fink Søndergaard og Stine Møgelbjerg Johansen. Pilotprojektet...... er gennemført for DMKLs El Sistema-udvalg med støtte fra Statens Kunstfond, Projektstøtteudvalget for Musik....

  2. SISTEMA NACIONAL DE CONTABILIDAD

    OpenAIRE

    Yacsahuache Pasapera, Hernán; Facultad de Ciencias Contables, Universidad Nacional Mayor de San Marcos

    2014-01-01

    La Ley 24680 o ley del Sistema Nacional de Contabilidad determina las funciones, objetivos y estructura de los organismos y Órganos componentes del SNC, instituido por el artículo 145° de la Constitución Política del Perú de 1979, los mecanismos de coordinación de la contabilidad, así como las relaciones con otros organismos del sector público y del sector privado. Determina, además, que es un sistema autónomo, administrativa y funcionalmente, tiene a su cargo la investigación y función de l...

  3. Clean Water Act

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Clean Water Act (CWA) establishes the basic structure for regulating discharges of pollutants into U.S. waters and regulating quality standards for surface...

  4. Effective Cleaning Radius Studies

    Energy Technology Data Exchange (ETDEWEB)

    Churnetski, B.V.

    2001-10-15

    This report discusses results of testing done in the Savannah River Laboratory half tank and full tank mockup facilities using kaolin clay slurries and the relationship between cleaning radius and pump and slurry characteristics.

  5. Clean Power Plan Toolbox

    Science.gov (United States)

    These are resources to help states as they develop state implementation plans under section 111(d) of the Clean Air Act to meet EPA's carbon pollution standards for existing power plants. Supplements www2.epa.gov/carbon-pollution-standards.

  6. Health Physics counting room

    CERN Multimedia

    1970-01-01

    The Health Physics counting room, where the quantity of induced radioactivity in materials is determined. This information is used to evaluate possible radiation hazards from the material investigated.

  7. Cleaning without chlorinated solvents

    Energy Technology Data Exchange (ETDEWEB)

    Thompson, L.M.; Simandl, R.F.

    1994-12-31

    Because of health and environmental concerns, many regulations have been passed in recent years regarding the use of chlorinated solvents. The Oak Ridge Y-12 Plant has had an active program to find alternatives for these solvents used in cleaning applications for the past 7 years. During this time frame, the quantity of solvents purchased has been reduced by 92%. The program has been a twofold effort. Vapor degreasers used in batch cleaning-operations have been replaced by ultrasonic cleaning with aqueous detergent, and other organic solvents have been identified for use in hand-wiping or specialty operations. In order to qualify these alternatives for use, experimentation was conducted on cleaning ability as well as effects on subsequent operations such as welding, painting and bonding. Cleaning ability was determined using techniques such as X-ray photoelectron spectroscopy (XPS) and Fourier Transform Infrared Spectroscopy (FTIR) which are capable of examining monolayer levels of contamination on a surface. Solvents have been identified for removal of rust preventative oils, lapping oils, machining coolants, lubricants, greases, and mold releases. Solvents have also been evaluated for cleaning urethane foam spray guns, swelling of urethanes and swelling of epoxies.

  8. ALICE’s new meeting room

    CERN Multimedia

    2009-01-01

    There’s no reason to be late for a meeting in Wonderland (Point 2) anymore as ALICE gets a brand new conference room and a ‘clean up’. The new ALICE conference room.You won’t find Building 3294 on the CERN map yet, but it is already being used. If you follow the white rabbit just inside the entrance at point 2, you will find a new conference room and office space for 12 people. "Previously at Point 2 we’ve had very little office space at all. Our old conference room was inside the main building, SX2, but it was cramped and extremely noisy," explained Frank Cliff from ALICE. "As soon as they turned on the overhead cranes you could barely hear yourself think!" The plans for the new building were drawn up by the Civil Engineering Group, and construction started in August last year. The building was completed and already in use before Christmas. The 109 square metre conference room can fit up to 60 people and is fully equipped...

  9. El Sistema's Open Secrets

    Science.gov (United States)

    Booth, Eric

    2011-01-01

    In this article, the author talks about Venezuela's national youth orchestra program called El Sistema whose attributes offer a direct challenge to traditional Western music practices. As U.S. classical music--and all "high arts"--struggle to find relevance to more than the small "arts club" percentage of the U.S. populace, El…

  10. Virtual Seminar Room

    DEFF Research Database (Denmark)

    Forchhammer, Søren Otto; Fosgerau, Anders; Hansen, Peter Søren Kirk

    1999-01-01

    The initial design considerations and research goals for an ATM network based virtual seminar room with 5 sites are presented.......The initial design considerations and research goals for an ATM network based virtual seminar room with 5 sites are presented....

  11. Our Urban Living Room

    DEFF Research Database (Denmark)

    Hjortshøj, Rasmus

    2016-01-01

    the boundaries between private and public space become fluid. Based on specific Cobe projects, Our Urban Living Room tells stories about the architectural development of Copenhagen, while exploring the progression of the Danish Capital - from an industrial city into an urban living room, known as one...

  12. Operating room manager game

    NARCIS (Netherlands)

    Hans, Erwin W.; Nieberg, Tim

    2007-01-01

    The operating room (OR) department of a hospital forms the heart of the organization, where the single largest cost is incurred. This document presents and reports on the “Operating Room Manager Game,” developed to give insight into managing a large hospital's OR department at various levels of cont

  13. Unlocking the Locker Room.

    Science.gov (United States)

    St. Clair, Dean

    1996-01-01

    Discusses locker-room design standards and common challenges when complying with the Americans with Disabilities Act. Accessibility and safety considerations for shower, toilet, and locker areas are addressed, as are entrance vestibules, drying and grooming areas, and private dressing rooms. (GR)

  14. Amination of allylic alcohols in water at room temperature.

    Science.gov (United States)

    Nishikata, Takashi; Lipshutz, Bruce H

    2009-06-04

    The "trick" to carrying out regiocontrolled aminations of allylic alcohols in water as the only medium is use of a nanomicelle's interior as the organic reaction solvent. When HCO(2)Me is present, along with the proper base and source of catalytic Pd, allylic amines are cleanly formed at room temperature.

  15. Clean Elements in Abelian Rings

    Indian Academy of Sciences (India)

    Angelina Y M Chin

    2009-04-01

    Let be a ring with identity. An element in is said to be clean if it is the sum of a unit and an idempotent. is said to be clean if all of its elements are clean. If every idempotent in is central, then is said to be abelian. In this paper we obtain some conditions equivalent to being clean in an abelian ring.

  16. Efficiancy of hydrogen peroxide for cleaning production areas and equipments in the radiopharmaceutical production

    Energy Technology Data Exchange (ETDEWEB)

    Baptista, Tatyana S.; Batista, Vanessa; Gomes, Antonio; Matsuda, Margareth; Fukumori, Neuza; Araujo, Elaine B. de, E-mail: tsbaptista@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    A great challenge in the radiopharmaceuticals production is to fulfill the Good Manufacturing Practices (GMPs), involving the validation of process and of all supporting activities such as cleaning and sanitization. The increasingly strict requirements for quality assurance system, with several norms and normative resolutions has led to a constant concern with programs and cleaning validation in pharmaceutical production. The main goal of GMP is to reduce risks inherent to pharmaceutical production, that is to reduce product contamination with microorganisms and cross-contamination. The basic requirements to prevent contamination is the development and implementation of efficient cleaning programs. In the case of clean rooms for the production of injectable radiopharmaceuticals, the requirement for cleaning programs is evidently higher due to the characteristics of these areas with hot cells for radioactive materials, where sterile radiopharmaceuticals are manipulated and distributed before administration to patients just after minutes or hours of its preparation. In the Radiopharmacy Department at IPEN it was established a cleaning program for clean rooms and hot cells using a hydrogen peroxide solution (20% proxitane alfa). The objective of this work was to assess effectiveness of this cleaning agent in reducing and/or eliminating microbial load in the clean rooms and equipment to acceptable levels in accordance with the current legislation. The analysis was conducted using results of the environmental monitoring program with and settling contact plates in clean rooms after the cleaning procedures. Furthermore, it was possible to evaluate the action of the sanitizing agent on the microbial population on the surface of equipment and clean rooms. It was also evaluated the best way to accomplish the cleaning program considering the dosimetric factor in each production process, as the main concern of pharmaceutical companies is the microbiological contamination, in

  17. Effect of cleaning and storage on quartz substrate adhesion and surface energy

    Science.gov (United States)

    Balachandran, Dave; John, Arun

    2014-04-01

    The force of adhesion of 50 nm diameter diamond-like carbon sphere probes to three quartz substrates was measured using an atomic force microscope. The force of adhesion was measured prior to cleaning, within 10 minutes after cleaning, after storage in an N2-purged cabinet, and after storage in an N2-purged vacuum oven. The evaluated cleaning recipes were SC1-like, SPM-like, and HF-based, each followed by ultra-pure deionized water (UPW) rinse and spin drying. The measurements were conducted in a Class 100 clean room at approximately 50% relative humidity. In addition, contact angle measurements were made on three additional quartz substrates using UPW before cleaning, after cleaning, and throughout N2 storage. The adhesion force increased after cleaning as compared to the pre-cleaned state, continued to increase until reaching a maximum after 5 days of N2 storage, and then decreased after 26 days for all three substrates. One substrate was then stored in a vacuum oven for 3 days, and the adhesion force decreased to 46% of the pre-cleaned state. The contact angle was reduced from over 30° before cleaning to 0° immediately after cleaning. During subsequent N2 storage, the contact angle increased to 5° or greater after 18 hours for the substrate cleaned with the HF-based recipe and after 15 days for the substrates cleaned by the SC1-like and SPM-like recipes.

  18. The Virtual Dressing Room

    DEFF Research Database (Denmark)

    Holte, Michael Boelstoft; Gao, Yi; Petersson, Eva

    2015-01-01

    This paper presents the design and evaluation of a usability and user experience test of a virtual dressing room. First, we motivate and introduce our recent developed prototype of a virtual dressing room. Next, we present the research and test design grounded in related usability and user...... experience studies. We give a description of the experimental setup and the execution of the designed usability and user experience test. To this end, we report interesting results and discuss the results with respect to user-centered design and development of a virtual dressing room....

  19. Room Acoustical Fields

    CERN Document Server

    Mechel, Fridolin

    2013-01-01

    This book presents the theory of room acoustical fields and revises the Mirror Source Methods for practical computational use, emphasizing the wave character of acoustical fields.  The presented higher methods include the concepts of “Mirror Point Sources” and “Corner sources which allow for an excellent approximation of complex room geometries and even equipped rooms. In contrast to classical description, this book extends the theory of sound fields describing them by their complex sound pressure and the particle velocity. This approach enables accurate descriptions of interference and absorption phenomena.

  20. RILIS laser room HD

    CERN Multimedia

    2016-01-01

    Footage of the RILIS laser room at ISOLDE. The Resonance Ionization Laser Ion Source (RILIS) is a chemically selective ion source which relies on resonant excitation of atomic transitions using tunable laser radiation. This video shows you the laser table with the different lenses and optics as well as an overview of the RILIS laser setup. It also shows laser light with different colors and operation by the RILIS laser experts. The last part of the video shows you the laser path from the RILIS laser room into the ISOLDE GPS separator room where it enters the GPS separator magnet.

  1. RILIS laser room

    CERN Multimedia

    2016-01-01

    Footage of the RILIS laser room at ISOLDE. The Resonance Ionization Laser Ion Source (RILIS) is a chemically selective ion source which relies on resonant excitation of atomic transitions using tunable laser radiation. This video shows you the laser table with the different lenses and optics as well as an overview of the RILIS laser setup. It also shows laser light with different colors and operation by the RILIS laser experts. The last part of the video shows you the laser path from the RILIS laser room into the ISOLDE GPS separator room where it enters the GPS separator magnet.

  2. Transformer room fire tests

    Science.gov (United States)

    Fustich, C. D.

    1980-03-01

    A series of transformer room fire tests are reported to demonstate the shock hazard present when automatic sprinklers operate over energized electrical equipment. Fire protection was provided by standard 0.5 inch pendent automatic sprinklers temperature rated at 135 F and installed to give approximately 150 sq ft per head coverage. A 480 v dry transformer was used in the room to provide a three phase, four wire distribution system. It is shown that the induced currents in the test room during the various tests are relatively small and pose no appreciable personnel shock hazard.

  3. sistema Web con JSP

    Directory of Open Access Journals (Sweden)

    César Viloria Núñez

    2014-01-01

    Full Text Available Este artículo presenta el desarrollo de un sistema de información que permite la adquisición y la administración de información relacionada con los signos vitales como la presión arterial, la frecuencia cardiaca y respiratoria, y la saturación de oxígeno en la sangre de un paciente. La implementación del sistema se basa en una solución Web, permitiendo así que médicos especialistas puedan monitorear a sus pacientes desde cualquier punto conectado a la red en tiempo real y, al mismo tiempo, dar indicaciones críticas al personal médico que se encuentra en el lugar con el paciente.

  4. Clean Assembly Practices to Prevent Contamination and Damage to Optics

    Energy Technology Data Exchange (ETDEWEB)

    Pryatel, J; Gourdin, W H

    2005-12-19

    A key lesson learned from the earliest optics installed in the National Ignition Facility (NIF) was that the traditional approach for maintaining cleanliness, such as the use of cleanrooms and associated garments and protocols, is inadequate. Assembly activities often negate the benefits provided by cleanrooms, and in fact generate contamination with high damage potential. As a result, NIF introduced ''clean assembly protocols'' and related practices to supplement the traditional clean room protocols. These new protocols included ''clean-as-you-go'' activities and regular bright light inspections. Introduction of these new protocols has greatly reduced the particle contamination found on more recently installed optics. In this paper we will describe the contamination mechanisms we have observed and the details of the clean assembly protocols we have successfully introduced to mitigate them.

  5. Predicting Acoustics in Class Rooms

    DEFF Research Database (Denmark)

    Christensen, Claus Lynge; Rindel, Jens Holger

    2005-01-01

    Typical class rooms have fairly simple geometries, even so room acoustics in this type of room is difficult to predict using today's room acoustic computer modeling software. The reasons why acoustics of class rooms are harder to predict than acoustics of complicated concert halls might...

  6. Carpenter in White Room

    Science.gov (United States)

    1962-01-01

    Inside Hangar S at the White Room Facility at Cape Canaveral, Florida, Mercury astronaut M. Scott Carpenter examines the honeycomb protective material on the main pressure bulkhead (heat shield) of his Mercury capsule nicknamed 'Aurora 7.'

  7. Cleanly: trashducation urban system

    DEFF Research Database (Denmark)

    Reif, Inbal; Alt, Florian; Ramos, Juan David Hincapie

    Half the world's population is expected to live in urban areas by 2020. The high human density and changes in peoples' consumption habits result in an ever-increasing amount of trash that must be handled by governing bodies. Problems created by inefficient or dysfunctional cleaning services...

  8. Clean Cities Tools

    Energy Technology Data Exchange (ETDEWEB)

    None

    2014-12-19

    The U.S. Department of Energy's Clean Cities offers a large collection of Web-based tools on the Alternative Fuels Data Center. These calculators, interactive maps, and data searches can assist fleets, fuels providers, and other transportation decision makers in their efforts to reduce petroleum use.

  9. Neutrino Detection With CLEAN

    CERN Document Server

    McKinsey, D N

    2005-01-01

    This article describes CLEAN, an approach to the detection of low-energy solar neutrinos and neutrinos released from supernovae. The CLEAN concept is based on the detection of elastic scattering events (neutrino-electron scattering and neutrino-nuclear scattering) in liquified noble gases such as liquid helium, liquid neon, and liquid xenon, all of which scintillate brightly in the ultraviolet. Key to the CLEAN technique is the use of a thin film of wavelength-shifting fluor to convert the ultraviolet scintillation light to the visible. This allows the same liquid to be used as both a passive shielding medium and an active self-shielding detector, allowing lower intrinsic radioactive backgrounds at low energies. Liquid neon is a particularly promising medium for CLEAN. Because liquid neon has a high scintillation yield, has no long-lived radioactive isotopes, and can be easily purified by use of cold traps, it is an ideal medium for the detection of rare nuclear events. In addition, neon is inexpensive, dense...

  10. WINDOW-CLEANING

    CERN Multimedia

    Environmental Section / ST-TFM

    2001-01-01

    The two-month window-cleaning session on the Meyrin, Prévessin and LEP sites will soon begin. The cleaning contractors will work from Monday to Saturday, every week from 4.00 a.m. to 8.00 p.m. The work will be organised so as to disturb users as little as possible. In any event, a work notice will be left in each office 24 hours beforehand. To prevent any damage to documents or items which could occur despite the precautions taken, please clear completely the window-sills and the area immediately around them. If, however, for valid reasons, the work cannot be done on the scheduled day, please inform the Environmental Section by telephoning: 73753 / 74233 / 72242 If you are going to be absent during this two-month period, we should be grateful if you would clear the above mentioned areas before your departure. REMINDER To allow more thorough cleaning of the entrance doors to buildings and also facilitate the weekly work of the cleaning contractors, we ask you to make use of the notice boards at the...

  11. Sistemas Silvipastoris Silvipastoral Systems

    Directory of Open Access Journals (Sweden)

    Fernando Salgado Bernardino

    2010-02-01

    Full Text Available

    Apesar das pesquisas com sistemas silvipastoris terem sido iniciadas no final da década de 1970, as informações geradas até hoje não são em grande número. As vantagens advindas de um sistema silvipastoril são inúmeras e devidamente reconhecidas. Pelo fato de ser uma técnica de uso da terra capaz de recuperar ecossistemas alterados pelo mau manejo, estes sistemas, pela integração de atividades agrícolas, pecuárias e silviculturais, passam a representar uma tecnologia que confere maior sustentabilidade que os sistemas tradicionais, nos quais os monocultivos são predominantes. Nos últimos anos, instituições de ensino, pesquisa e extensão do País têm se voltado para o desenvolvimento de tais sistemas. O governo de Minas Gerais, por meio de sua Secretaria de Estado de Agricultura e de órgãos vinculados, vem promovendo a condução de modelos agrossilvipastoris num processo integrado de ocupação do solo, denominado lavoura-pecuária-silvicultura. Apesar dos grandes avanços no conhecimento de culturas anuais e dos componentes arbóreos, principalmente o eucalipto, e de gramíneas forrageiras tolerantes à diminuição da intensidade luminosa, ainda é necessário se comnhecer melhor o manejo do sub-bosque sob os efeitos do pastejo.

     

    doi: 10.4336/2009.pfb.60.77

    Although researches related to silvopastoral systems have been initiated many years ago in Brazil, there are few informations generated until now. The advantages from a silvopastoral system are inumerous and well recognized. By the fact of being a technique of land using capable of recovering several disturbed ecosystems, the silvopastoral systems by the integration of agricultural, cattle, and silvicultural activities represent a technology that can achieve higher sustainability than the traditional systems as the monocultures. Today, research centers in Brazil dedicate great attention to agrossilvopastoral systems. The government of Minas Gerais

  12. SISTEMA PROCESSUAL MISTO (OU MÍTICO SISTEMA PROCESSUAL)

    OpenAIRE

    Cani, Luiz Eduardo

    2014-01-01

    Este artigo demonstra que a existência de um sistema processual misto não passa de um engodo. Para tanto, são abordadas as estruturas dos sistemas processuais acusatório e inquisitório. O método de abordagem é o indutivo e o de procedimento é o comparativo. A metodologia empregada é a de análise e de cruzamento da literatura acerca do tema, apresentando-se as razões porque o chamado sistema processual misto não é, na verdade, um sistema.

  13. Clean Energy Solutions Center Services

    Energy Technology Data Exchange (ETDEWEB)

    2016-03-01

    The Solutions Center offers no-cost expert policy assistance, webinars and training forums, clean energy policy reports, data, and tools provided in partnership with more than 35 leading international and regional clean energy organizations.

  14. A Simple Survey Concerning the Approach of the Cleaning Companies to Mercury Spills

    OpenAIRE

    Derya Camur; Songul Acar Vaizoglu; Cagatay Guler

    2010-01-01

    AIM: The aim of this study is to determine the knowledge of the cleaning companies in case of mercury spills at home. METHOD: Thirty-two cleaning companies were interviewed by a telephone survey. Two standard questions were asked to an authorized people of the company. “A manometer is broken on the carpet. The mercury in the manometer is all spilled on the wall to wall carpet in the living room. We want our carpet to be cleaned. Could you do it? How can be the carpet cleaned? Have you e...

  15. Sustainable development with clean coal

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-08-01

    This paper discusses the opportunities available with clean coal technologies. Applications include new power plants, retrofitting and repowering of existing power plants, steelmaking, cement making, paper manufacturing, cogeneration facilities, and district heating plants. An appendix describes the clean coal technologies. These include coal preparation (physical cleaning, low-rank upgrading, bituminous coal preparation); combustion technologies (fluidized-bed combustion and NOx control); post-combustion cleaning (particulate control, sulfur dioxide control, nitrogen oxide control); and conversion with the integrated gasification combined cycle.

  16. Multi-stage cleaning plant

    Energy Technology Data Exchange (ETDEWEB)

    Kullendorff, A.; Wikner, J.

    1980-12-09

    A cleaning plant positioned within an annular fluidized bed combustion chamber is divided into a plurality of separate cleaning stages, wherein a first stage is located adjacent the fluidized bed and additional stages are arranged within the first stage. Each stage comprises a plurality of separate cleaning devices which act in parallel, while cleaning devices of different stages act in series to remove debris from the combustion gases that exit from the fluidized bed combustion chamber.

  17. Sistemas constructivos industrializados

    Directory of Open Access Journals (Sweden)

    del Águila, Alfonso

    1996-12-01

    Full Text Available The present article summarizes the main points discussed in three Innovator Buildings Systems sessions, which are about different subjects of Industrialized Building. The first part is about the topic of concrete panels, applied to building flats basically. It is given a historical summary and the general concepts, ending with "INDAGSA BUILDING SYSTEM", which is running several promotions with in Madrid. In the second part it is developed the subject of building with boxes, beginning with general points which are extended to the concept of box, its classification, its historical aspects and its applications. It is continues with a description of the "SET HOME SYSTEM" of boxes of concrete, which is dedicated to industrialization of social housing services and equipments. This part ends with the French system "TRANSLOKO" of big light boxes. Lately, it has made a building for laboratories in Madrid. The last part is dedicated to a new subject in Interior Building, which is the Dry Floor, being detailedly described the "PLADUR" point of view about this.

    El presente artículo resume lo tratado en tres jornadas de Sistemas Constructivos Innovadores, relativos a diversos temas de Construcción Industrializada. En la primera parte se trata el tema de los paneles de hormigón aplicados a la edificación, principalmente a viviendas. Se da una síntesis histórica y esquemática de conceptos generales, para terminar con una descripción del Sistema Constructivo INDAGSA que están realizando numerosas promociones en Madrid. La segunda parte, desarrolla el tema de la construcción con módulos tridimensionales, comenzando por unas consideraciones generales que abarcan el concepto de módulo tridimensional, su clasificación, aspectos históricos y campos de aplicación. Se sigue con una descripción del Sistema SET HOME, de módulos tridimensionales de hormigón, dedicado a la industrialización de servicios e instalaciones en vivienda social

  18. Los nudos del sistema

    OpenAIRE

    2000-01-01

    Pieza central del antiguo régimen; pacto, acuerdo o trato con algunos actores decisivos del sistema político susceptible de ser revisado; forma cultural de relaciones de poder o de intercambio; pirámide de organizaciones o estructura sectorial: ¿qué tan invisible sigue siendo, qué tan montada sigue estando la pirámide del corporativismo mexicano antes y después del 2 de julio de 2000? Este fenómeno constituye el eje central de las reflexiones del presente ensayo. En torno al mismo, se pres...

  19. El Sistema Penitenciario Mexicano

    OpenAIRE

    Azaola, Elena; Bergman, Marcelo

    2003-01-01

    Este trabajo describe los rasgos y los problemas que caracterizan al sistema penitenciario mexicano y efectúa un análisis del papel que desempeña dentro del conjunto de las instituciones que tienen por objeto combatir la criminalidad. Se abordan los cambios en la actividad delictiva que han tenido lugar en el país durante la última década y las acciones que llevan a cabo las instituciones de seguridad y justicia para contenerla. Se incluyen los principales resultados y conclusiones de una enc...

  20. Cleaning of Free Machining Brass

    Energy Technology Data Exchange (ETDEWEB)

    Shen, T

    2005-12-29

    We have investigated four brightening treatments proposed by two cleaning vendors for cleaning free machining brass. The experimental results showed that none of the proposed brightening treatments passed the swipe test. Thus, we maintain the recommendation of not using the brightening process in the cleaning of free machining brass for NIF application.

  1. A Clean Market

    Institute of Scientific and Technical Information of China (English)

    MAGGIECHEN

    2004-01-01

    If you have US$1 million, do you invest in car production or cleaning car emissions? More cars than ever are hitting the roads and demand is rising.Cleaner cars are being called for, as the government strives to reduce car emission. So there is an obvious market both for cars and for new emission control technologies.Theoretically, you should make money by investing in either of them in China today.

  2. CLEAN: CLustering Enrichment ANalysis

    Directory of Open Access Journals (Sweden)

    Medvedovic Mario

    2009-07-01

    Full Text Available Abstract Background Integration of biological knowledge encoded in various lists of functionally related genes has become one of the most important aspects of analyzing genome-wide functional genomics data. In the context of cluster analysis, functional coherence of clusters established through such analyses have been used to identify biologically meaningful clusters, compare clustering algorithms and identify biological pathways associated with the biological process under investigation. Results We developed a computational framework for analytically and visually integrating knowledge-based functional categories with the cluster analysis of genomics data. The framework is based on the simple, conceptually appealing, and biologically interpretable gene-specific functional coherence score (CLEAN score. The score is derived by correlating the clustering structure as a whole with functional categories of interest. We directly demonstrate that integrating biological knowledge in this way improves the reproducibility of conclusions derived from cluster analysis. The CLEAN score differentiates between the levels of functional coherence for genes within the same cluster based on their membership in enriched functional categories. We show that this aspect results in higher reproducibility across independent datasets and produces more informative genes for distinguishing different sample types than the scores based on the traditional cluster-wide analysis. We also demonstrate the utility of the CLEAN framework in comparing clusterings produced by different algorithms. CLEAN was implemented as an add-on R package and can be downloaded at http://Clusteranalysis.org. The package integrates routines for calculating gene specific functional coherence scores and the open source interactive Java-based viewer Functional TreeView (FTreeView. Conclusion Our results indicate that using the gene-specific functional coherence score improves the reproducibility of the

  3. Clean Power on Tap

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    China adopts the most advanced nuclear power technologies to meet long-term energy needs Nuclear power has taken center stage in China’s nationwide cam-paign to develop new and clean energy sources. In the latest effort, Chinese state-owned nuclear power giants invested over 40 billion yuan ($5.86 billion) as an initial funding injection to build a new plant under the

  4. Clean steels for fusion

    Energy Technology Data Exchange (ETDEWEB)

    Gelles, D.S.

    1995-03-01

    Fusion energy production has an inherent advantage over fission: a fuel supply with reduced long term radioactivity. One of the leading candidate materials for structural applications in a fusion reactor is a tungsten stabilized 9% chromium Martensitic steel. This alloy class is being considered because it offers the opportunity to maintain that advantage in the reactor structure as well as provide good high temperature strength and radiation induced swelling and embrittlement resistance. However, calculations indicate that to obtain acceptable radioactivity levels within 500 years after service, clean steel will be required because the niobium impurity levels must be kept below about 2 appm and nickel, molybdenum, nitrogen, copper, and aluminum must be intentionally restricted. International efforts are addressing the problems of clean steel production. Recently, a 5,000 kg heat was vacuum induction melted in Japan using high purity commercial raw materials giving niobium levels less than 0.7 appm. This paper reviews the need for reduced long term radioactivity, defines the advantageous properties of the tungsten stabilized Martensitic steel class, and describes the international efforts to produce acceptable clean steels.

  5. Saltstone Clean Cap Formulation

    Energy Technology Data Exchange (ETDEWEB)

    Langton, C

    2005-04-22

    The current operation strategy for using Saltstone Vault 4 to receive 0.2 Ci/gallon salt solution waste involves pouring a clean grout layer over the radioactive grout prior to initiating pour into another cell. This will minimize the radiating surface area and reduce the dose rate at the vault and surrounding area. The Clean Cap will be used to shield about four feet of Saltstone poured into a Z-Area vault cell prior to moving to another cell. The minimum thickness of the Clean Cap layer will be determined by the cesium concentration and resulting dose levels and it is expected to be about one foot thick based on current calculations for 0.1 Ci Saltstone that is produced in the Saltstone process by stabilization of 0.2 Ci salt solution. This report documents experiments performed to identify a formulation for the Clean Cap. Thermal transient calculations, adiabatic temperature rise measurements, pour height, time between pour calculations and shielding calculations were beyond the scope and time limitations of this study. However, data required for shielding calculations (composition and specific gravity) are provided for shielding calculations. The approach used to design a Clean Cap formulation was to produce a slurry from the reference premix (10/45/45 weight percent cement/slag/fly ash) and domestic water that resembled as closely as possible the properties of the Saltstone slurry. In addition, options were investigated that may offer advantages such as less bleed water and less heat generation. The options with less bleed water required addition of dispersants. The options with lower heat contained more fly ash and less slag. A mix containing 10/45/45 weight percent cement/slag/fly ash with a water to premix ratio of 0.60 is recommended for the Clean Cap. Although this mix may generate more than 3 volume percent standing water (bleed water), it has rheological, mixing and flow properties that are similar to previously processed Saltstone. The recommended

  6. The Virtual Dressing Room

    DEFF Research Database (Denmark)

    Holte, Michael Boelstoft

    2013-01-01

    This paper presents a review of recent developments and future perspectives, addressing the problem of creating a virtual dressing room. First, we review the current state-of-the-art of exiting solutions and discuss their applicability and limitations. We categorize the exiting solutions into three...... kinds: (1) virtual real-time 2D image/video techniques, where the consumer gets to superimpose the clothes on their real-time video to visualize themselves wearing the clothes. (2) 2D and 3D mannequins, where a web-application uses the body measurements provided by the customer, to superimpose...... and their demands to a virtual dressing room....

  7. Controlabilidad de Sistemas Bilineales en el Plano

    OpenAIRE

    Laura Guarachi, Leonardo Ramiro

    2012-01-01

    El objeto principal de este trabajo son los sistemas de ecuaciones diferenciales que dependen de un parámetro u, control del sistema, tales sistemas se llaman sistemas de ecuaciones diferenciales controlables, los cuales, en general, describen procesos dinámicos de fenómenos físicos. Estos procesos se describen mediante sistemas de ecuaciones diferenciales ordinarios (EDO), ecuaciones en diferencias o a través de ecuaciones derivadas parciales. Una clase de sistemas de mucha im...

  8. Enfermagem em centro cirúrgico: trinta anos após criação do Sistema de Assistência de Enfermagem Perioperatória Enfermería en centro quirúrgico: treinta años después de la creación del Sistema de Asistencia de Enfermería Perioperatoria Operation room nursing in Brazil: thirty years after the Institution of Perioperative Nursing Process

    Directory of Open Access Journals (Sweden)

    Rosa Maria Pelegrini Fonseca

    2009-01-01

    mejor calidad posible. Se confirmó la importancia de la asistencia humanizada e individualizada. CONCLUSIÓN: Las investigaciones analizadas contribuyen a la construcción del conocimiento e influyen positivamente en el enfermero para el buen desempeño en la asistencia al paciente quirúrgico y familia.OBJECTIVE: To identify, review, and describe publications of Brazilian operation room nurses. METHODS: An integrated review approach was used to summarize main aspects of research articles on operation room nursing published in Brazilian journals indexed in LILACS, DEDALUS, and SciELO from 1978 through 2006. Fifty six research articles were retrieved and classified on the following six themes: preoperative visit, intraoperative care; postoperative recovery room care; postoperative visit; instrument development and validation, and perceptions of the patient. RESULTS: The research articles addressed issues that facilitated or impeded quality transoperative nursing care. Humanized and individualized transoperative care was found to be important. CONCLUSION: Findings from this review contribute to knowledge development and may influence quality transoperative nursing care to the patient and his or her family.

  9. Locker-Room Talk.

    Science.gov (United States)

    Lowe, Jason; Noyes, Brad

    1999-01-01

    Explains how proper athletic facility locker-room design can save time and money. Design factors that address who will be using the facility are discussed as are user requirements, such as preparation areas, total storage area per user, grooming area, and security areas. Final comments address maintenance and operations issues. (GR)

  10. Technology Equipment Rooms.

    Science.gov (United States)

    Day, C. William

    2001-01-01

    Examines telecommunications equipment room design features that allow for growth and can accommodate numerous equipment replacements and upgrades with minimal service disruption and with minimal cost. Considerations involving the central hub, power and lighting needs, air conditioning, and fire protection are discussed. (GR)

  11. Making room for volunteers

    DEFF Research Database (Denmark)

    Nielsen, Rasmus Kleis

    2012-01-01

    that is singleminded in its instrumental pursuit of victory can thus be less effective than one that is more accommodating- a campaign that makes room for volunteers by accepting that, unlike staffers, they come to politics with a different perspective and conception of what is and ought to be going on....

  12. PS Control Room

    CERN Multimedia

    1963-01-01

    The good old PS Control Room, all manual. For each parameter, a knob or a button to control it; for each, a light or meter or oscilloscope to monitor it; carefully written pages serve as the data bank; phones and intercom for communication. D.Dekkers is at the microphone, M.Valvini sits in front.

  13. Local control room

    CERN Document Server

    1972-01-01

    Local control room in the ejection building : all electronics pertaining to proton distribution and concomitants such as beam gymnastics and diagnostics at high energies will eventually be gathered here. Shown is the first of two rows of fast ejection electronic racks. It includes only what is necessary for operation.

  14. Room for caring

    DEFF Research Database (Denmark)

    Timmermann, Connie; Uhrenfeldt, Lisbeth; Birkelund, Regner

    2015-01-01

    ) Experiencing inner peace and an escape from negative thoughts, (ii) Experiencing a positive mood and hope and (iii) Experiencing good memories. Conclusion Our findings highlight aesthetic sensory impressions in the form of nature sights and natural light in the patient room as a powerful source of well...

  15. Air Distribution in Rooms

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    The research on air distribution in rooms is often done as full-size investigations, scale-model investigations or by Computational Fluid Dynamics (CFD). New activities have taken place within all three areas and this paper draws comparisons between the different methods. The outcome of the l...

  16. Effectiveness of ultraviolet devices and hydrogen peroxide systems for terminal room decontamination: Focus on clinical trials.

    Science.gov (United States)

    Weber, David J; Rutala, William A; Anderson, Deverick J; Chen, Luke F; Sickbert-Bennett, Emily E; Boyce, John M

    2016-05-02

    Over the last decade, substantial scientific evidence has accumulated that indicates contamination of environmental surfaces in hospital rooms plays an important role in the transmission of key health care-associated pathogens (eg, methicillin-resistant Staphylococcus aureus, vancomycin-resistant enterococci, Clostridium difficile, Acinetobacter spp). For example, a patient admitted to a room previously occupied by a patient colonized or infected with one of these pathogens has a higher risk for acquiring one of these pathogens than a patient admitted to a room whose previous occupant was not colonized or infected. This risk is not surprising because multiple studies have demonstrated that surfaces in hospital rooms are poorly cleaned during terminal cleaning. To reduce surface contamination after terminal cleaning, no touch methods of room disinfection have been developed. This article will review the no touch methods, ultraviolet light devices, and hydrogen peroxide systems, with a focus on clinical trials which have used patient colonization or infection as an outcome. Multiple studies have demonstrated that ultraviolet light devices and hydrogen peroxide systems have been shown to inactivate microbes experimentally plated on carrier materials and placed in hospital rooms and to decontaminate surfaces in hospital rooms naturally contaminated with multidrug-resistant pathogens. A growing number of clinical studies have demonstrated that ultraviolet devices and hydrogen peroxide systems when used for terminal disinfection can reduce colonization or health care-associated infections in patients admitted to these hospital rooms.

  17. Clean electricity from photovoltaics

    CERN Document Server

    Green, Martin A

    2015-01-01

    The second edition of Clean Electricity from Photovoltaics , first published in 2001, provides an updated account of the underlying science, technology and market prospects for photovoltaics. All areas have advanced considerably in the decade since the first edition was published, which include: multi-crystalline silicon cell efficiencies having made impressive advances, thin-film CdTe cells having established a decisive market presence, and organic photovoltaics holding out the prospect of economical large-scale power production. Contents: The Past and Present (M D Archer); Limits to Photovol

  18. Flue Gas Cleaning

    DEFF Research Database (Denmark)

    Fehrmann, Rasmus

    2014-01-01

    and sulfuric acid in the atmosphere causing precipitation of acid rain resulting in death of forests and destruction of buildings and monuments in addition to human health problems. The most common state-of-the-art methods applied today industrially for cleaning of flue gases will be addressed, including wet......-time. But the problems may also be attacked by new materials like supported ionic liquid phase (SILP) gas absorbers where the pollutants may be selectively absorbed, desorbed and finally converted to useful mineral acids of commercial grade – really a green waste-to-value approach that we persue instead...

  19. Sistemas hamiltonianos ressonantes.

    OpenAIRE

    Marisa Atsuko Nitto

    1999-01-01

    Será analisado, neste trabalho, o problema de ressonância existente entre os corpos celestes, cujos períodos orbitais são comensuráveis na razão p:q, onde p e q são números inteiros positivos. O corpo central será considerado achatado e as excentricidades e inclinações serão quantidades pequenas e não-nulas. O sistema Hamiltoniano ressonante obtido abrange muitos casos que podem ocorrer em problemas de Mecânica Celeste.A análise do problema será feita considerando três classes particulares de...

  20. Sistema Presidencial Mexicano"

    Directory of Open Access Journals (Sweden)

    David Pantoja Morán

    2005-01-01

    Full Text Available En este artículo, el autor aborda el origen doctrinal de las dimensiones institucionales y constitucionales del sistema presidencial-constitucional mexicano para tratar de encontrar ahí los posibles orígenes o explicaciones del éxito o fracaso de este tipo de régimen político. Para ello, se recupera la relevancia y significado de la constitución de 1824 para la vida nacional —desde entonces hasta nuestros días— a fin de comprender muchos de los orígenes de los aciertos y de los errores en el diseño de nuestra constitución vigente así como de la forma presidencial de gobierno, a saber, el principio de legitimidad dual y el de la rigidez o separación rígida de los Poderes.

  1. International Clean Energy Coalition

    Energy Technology Data Exchange (ETDEWEB)

    Erin Skootsky; Matt Gardner; Bevan Flansburgh

    2010-09-28

    In 2003, the National Association of Regulatory Utility Commissioners (NARUC) and National Energy Technology Laboratories (NETL) collaboratively established the International Clean Energy Coalition (ICEC). The coalition consisting of energy policy-makers, technologists, and financial institutions was designed to assist developing countries in forming and supporting local approaches to greenhouse gas mitigation within the energy sector. ICEC's work focused on capacity building and clean energy deployment in countries that rely heavily on fossil-based electric generation. Under ICEC, the coalition formed a steering committee consisting of NARUC members and held a series of meetings to develop and manage the workplan and define successful outcomes for the projects. ICEC identified India as a target country for their work and completed a country assessment that helped ICEC build a framework for discussion with Indian energy decisionmakers including two follow-on in-country workshops. As of the conclusion of the project in 2010, ICEC had also conducted outreach activities conducted during United Nations Framework Convention on Climate Change (UNFCCC) Ninth Conference of Parties (COP 9) and COP 10. The broad goal of this project was to develop a coalition of decision-makers, technologists, and financial institutions to assist developing countries in implementing affordable, effective and resource appropriate technology and policy strategies to mitigate greenhouse gas emissions. Project goals were met through international forums, a country assessment, and in-country workshops. This project focused on countries that rely heavily on fossil-based electric generation.

  2. Room for improvement

    DEFF Research Database (Denmark)

    Storvang, Pia; Dalby, Mette Strømgaard

    2015-01-01

    This paper develops the notion of a project war room as an innovation practice in companies. We argue that the consistent use of a project war room, in which customer and user research serves as a background for design work, improve the quality of product innovation. We describe our experiences...... from a project with four Danish medium-sized manufacturing companies aiming to become more competitive in the European export market. In the project, one challenge was how to convey results from customer interviews and user studies from the researcher team (which in all instances included a company...... manager) to the development team in each company. We chose to collaboratively build a ‘war room’ in each of the companies to make sense of research materials and establish design principles for products that would better align with customer needs....

  3. Sistema de control de riego

    OpenAIRE

    Sáez González, Javier

    2016-01-01

    Programación de un sistema capaz de controlar un sistema de riego mediante el microcontrolador Arduino. Dicho sistema se ha programado en la plataforma Simulink y se han llevado a cabo simulaciones del mismo para confirmar su correcto funcionamiento. Las simulaciones realizadas se basan en datos obtenidos de informes meteorológicos diarios que nos dan una idea de las posibles necesidades de riego en diferentes regiones de España. Realización de un estudio de diversos factores que influyen en ...

  4. La estructura del sistema hegeliano

    OpenAIRE

    Léonard, André; Universidad de Lovaina

    2014-01-01

    Como lo expresa su título, este artículo no pretende exponer el contenido del sistema hegeliano sino el esquema del pensamiento que es inherente a la filosofía hegeliana y que aparece invariable, bajo modos distintos, en cada una de las diferentes exposiciones que hace Hegel de su sistema. El autor toma como base para su trabajo la exposición del sistema hegeliano que aparece en la última edición de la Enciclopedia de las Ciencias Filosóficas (1830). Apoyado en la teoría hegeliana del silogis...

  5. [Virtual room of gastroenterology].

    Science.gov (United States)

    Spinelli, Osvaldo Mateo; Fittipaldi, Mónica Elsa; Henderson, Eduardo; Krabshuis, Justus Hendrik

    2010-12-01

    The amount of published information and its continuing growth can no longer be managed by an individual searcher. One of today's great challenges for the academic researcher and clinician is to find a relevant scientific article using bibliographic search strategies. We aimed to design and build a Virtual Room of Gastroenterology (VRG) generating real-time automated search strategies and producing bibliographic and full text search results. These results update and complement with the latest evidence the Clinical Guideline Program of the World Gastroenterology Organisation. The HTML driven interface provides a series of pre-formulated MeSH based search strategies for each Aula. For each topic between 10 and 20 specific terms, qualifiers and subheadings are identified. The functionality of the VRG is based on the PubMed's characteristic that allows a search strategy to be captured as a web address. The VRG is available in Spanish and English, and the access is free. There are 28 rooms currently available. All together these rooms provide an advanced bibliographic access using more than 900 pre-programmed MeSH driven strategies. In a further very recent development some of the topics of VRG now allow cascade based searches. These searches look at resource sensitive options and possible ethnic difference per topic. The VRG allows significant reductions in time required to design and carry out complex bibliographic searches in the areas of gastroenterology, hepatology and endoscopy. The system updates automatically in real-time thus ensuring the currency of the results.

  6. Development of Megasonic cleaning for silicon wafers. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Mayer, A.

    1980-09-01

    The major goals to develop a cleaning and drying system for processing at least 2500 three-in.-diameter wafers per hour and to reduce the process cost were achieved. The new system consists of an ammonia-hydrogen peroxide bath in which both surfaces of 3/32-in.-spaced, ion-implanted wafers are cleaned in quartz carriers moved on a belt past two pairs of Megasonic transducers. The wafers are dried in the novel room-temperature, high-velocity air dryer in the same carriers used for annealing. A new laser scanner was used effectively to monitor the cleaning ability on a sampling basis. The following factors contribute to the improved effectiveness of the process: (1) recirculation and filtration of the cleaning solution permit it to be used for at least 100,000 wafers with only a relatively small amount of chemical make-up before discarding; (2) uniform cleanliness is achieved because both sides of the wafer are Megasonically scrubbed to remove particulate impurities; (3) the novel dryer permits wafers to be dried in a high-velocity room-temperature air stream on a moving belt in their quartz carriers; and (4) the personnel safety of such a system is excellent and waste disposal has no adverse ecological impact. With the addition of mechanical transfer arms, two systems like the one developed will produce enough cleaned wafers for a 30-MW/year production facility. A projected scale-up well within the existing technology would permit a system to be assembled that produces about 12,745 wafers per hour; about 11 such systems, each occupying about 110 square feet, would be needed for each cleaning stage of a 500-MW/year production facility.

  7. Radiation Protection Elephants in the Room

    Energy Technology Data Exchange (ETDEWEB)

    Vetter, R. J.

    2004-07-01

    As our system of radiological protection evolves, several significant issues loom within radiation protection discussions and publications. These issues influence the nature of epidemiological and radiobiological research and the establishment of radiation protection recommendations, standards, and regulations. These issues are like the proverbial ''elephants in the room''. They are large, and it is unwise to ignore them. This paper discusses the impact of three young elephants as they make their presence increasingly obvious: increased cancer susceptibility from early-life exposure to radiation, terrorism and fear of radiation, and patient safety. Increased cancer susceptibility from early-life exposure to radiation is emerging as a discussion topic related to the safety of computed tomography (CT) and other medical modalities. Shortly after publication of CT dose data, manufacturers were helping to reduce doses to children by increasing flexibility for adjustment of technique factors. Also, radiation epidemiological data are being used in the development of guidance on exposure to chemical carcinogens during early life. Re-emergence of public fear of radiation has been fueled by threats of radiological dispersion devises and confusing messages about personal decontamination, emergency room acceptance or rejection of contaminated victims, and environmental clean-up. Finally, several professional publications have characterized risk of medical radiation exposure in terms of patient deaths even though epidemiological data do not support such conclusions. All three of these elephants require excellent science and sophisticated data analysis to coax them from the room. Anecdotal communications that confuse the public should be avoided. These are not the only elephants in the room, but these three are making their presence increasingly obvious. This paper discusses the need for radiation protection professionals to rely on good science in the

  8. Clean coal technologies market potential

    Energy Technology Data Exchange (ETDEWEB)

    Drazga, B. (ed.)

    2007-01-30

    Looking at the growing popularity of these technologies and of this industry, the report presents an in-depth analysis of all the various technologies involved in cleaning coal and protecting the environment. It analyzes upcoming and present day technologies such as gasification, combustion, and others. It looks at the various technological aspects, economic aspects, and the various programs involved in promoting these emerging green technologies. Contents: Industry background; What is coal?; Historical background of coal; Composition of coal; Types of coal; Environmental effects of coal; Managing wastes from coal; Introduction to clean coal; What is clean coal?; Byproducts of clean coal; Uses of clean coal; Support and opposition; Price of clean coal; Examining clean coal technologies; Coal washing; Advanced pollution control systems; Advanced power generating systems; Pulverized coal combustion (PCC); Carbon capture and storage; Capture and separation of carbon dioxide; Storage and sequestration of carbon dioxide; Economics and research and development; Industry initiatives; Clean Coal Power Initiative; Clean Coal Technology Program; Coal21; Outlook; Case Studies.

  9. Performance and Effectiveness of Portable Air Cleaners in an Office Room

    DEFF Research Database (Denmark)

    Ardkapan, Siamak Rahimi; Afshari, Alireza; Bergsøe, Niels Christian

    2015-01-01

    Nowadays, many people work in an office environment. Air pollutants, including particles and gases, are generated by humans and by different devices that are used in offices. Pollutants can also enter an office room with the air supplied from outdoors. It has been established that air pollutants...... have adverse health effects on human body. Air cleaning devices are commonly marketed as being beneficial for the health by removing air pollutants and consequently improving indoor air quality. The performance of five air cleaning technologies was tested in order to determine the generation of ozone...... and particles in an office room. The particle removal effectiveness of the technologies was also determined in order to clarify their ability to remove UFPs (ultrafine particles) in the office room. The tested five air cleaning technologies are non-thermal plasma, corona discharge ionizer, portable air purifier...

  10. Gas-Liquid Supersonic Cleaning and Cleaning Verification Spray System

    Science.gov (United States)

    Parrish, Lewis M.

    2009-01-01

    NASA Kennedy Space Center (KSC) recently entered into a nonexclusive license agreement with Applied Cryogenic Solutions (ACS), Inc. (Galveston, TX) to commercialize its Gas-Liquid Supersonic Cleaning and Cleaning Verification Spray System technology. This technology, developed by KSC, is a critical component of processes being developed and commercialized by ACS to replace current mechanical and chemical cleaning and descaling methods used by numerous industries. Pilot trials on heat exchanger tubing components have shown that the ACS technology provides for: Superior cleaning in a much shorter period of time. Lower energy and labor requirements for cleaning and de-scaling uper.ninih. Significant reductions in waste volumes by not using water, acidic or basic solutions, organic solvents, or nonvolatile solid abrasives as components in the cleaning process. Improved energy efficiency in post-cleaning heat exchanger operations. The ACS process consists of a spray head containing supersonic converging/diverging nozzles, a source of liquid gas; a novel, proprietary pumping system that permits pumping liquid nitrogen, liquid air, or supercritical carbon dioxide to pressures in the range of 20,000 to 60,000 psi; and various hoses, fittings, valves, and gauges. The size and number of nozzles can be varied so the system can be built in configurations ranging from small hand-held spray heads to large multinozzle cleaners. The system also can be used to verify if a part has been adequately cleaned.

  11. Ultrasound cleaning of microfilters

    DEFF Research Database (Denmark)

    Hald, Jens; Bjørnø, Irina; Jensen, Leif Bjørnø

    1999-01-01

    The aim of the present work is to develop, design, and manufacture a high-power ultrasound transducer module to be used for preventing the blocking of plastic-based microfilters by organic materials, and possibly to prolong the lifetime of the filters in industry using the cavitation on the surface...... suitable for cleaning of microfilters without damaging the filter structure. The filter surface was studied using an optical microscope before and after the experiment. When high-power ultrasound (max. 75 W/cm2) was applied to the surface of some microfilters, no visible damage was found, while others...... filters were damaged. The results of the laboratory experiments formed background for the final design of an ultrasound transducer module for use by foodstuff filtration plants. [This work was financed by the EU Project WAMBIO PL96-3257 (FAIR Programme).]...

  12. Flue gas cleaning chemistry

    Energy Technology Data Exchange (ETDEWEB)

    Gutberlet, H. [VEBA Kraftwerke Ruhr AG, Gelsenkirchen (Germany)

    1996-12-01

    The introduction of modern flue gas cleaning technology into fossil-fueled power stations has repeatedly confronted the power station chemists with new and interesting problems over the last 15 - 20 years. Both flue gas desulphurization by lime washing and catalytic removal of nitrogen oxides are based on simple basic chemical reactions. Owing to the use of readily available starting materials, the production of safe, useful end products and, last but not least, the possibility of implementing all this on an industrial scale by means of efficient process engineering, limestone desulphurization and catalytic removal of nitrogen oxides dominate the world market and, little by little, are becoming still more widespread. The origin and thus the quality of fuels and starting materials, the firing method, the mode of operation and engineering peculiarities in each plant interact in a complex manner. Simple cause/effect relationships are frequently incapable of explaining phenomena; thinking in complex interrelationships is needed. (EG)

  13. SISTEMAS INMUNES ALTERNATIVOS

    Directory of Open Access Journals (Sweden)

    LUIS F. CADAVID

    2011-01-01

    Full Text Available El sistema inmune en animales es una red compleja de moléculas, células y tejidos que de manera conjunta mantienen la integridad fisiológica y genética de los organismos. Convencionalmente se ha considerado la existencia de dos clases de inmunidad, la innata y la adaptativa. La primera es ancestral, con variabilidad limitada y baja discriminación, mientras que la segunda es altamente variable, específica y restringida a vertebrados mandibulados. La inmunidad adaptativa se basa en receptores de antígeno que se rearreglan somáticamente para generar una diversidad casi ilimitada de moléculas. Este mecanismo de recombinación somática muy probablemente emergió como consecuencia de un evento de transferencia horizontal de transposones y transposasas bacterianas en el ancestro de los vertebrados mandibulados. El reciente descubrimiento en vertebrados no mandibulados e invertebrados de mecanismos alternativos de inmunidad adaptativa, sugiere que en el transcurso de la evolución distintos grupos animales han encontrado soluciones alternativas al problema del reconocimiento inmunológico.

  14. En portada SISTEMA RESPIRATORIO

    Directory of Open Access Journals (Sweden)

    Andrés J. Flores Alés,

    2005-10-01

    Full Text Available La sección “En portada” de este mes está dedicada a los agentes infecciosos y al diagnóstico de algunas de las enfermedades respiratorias más habituales en los animales de compañía, estacando la relevancia adquirida por el diagnóstico mediante la obtención de de imágenes en este campo. También se hace incapie en la actuación que debe llevar a cabo elínico ante una urgencia respiratoria La obtención de imágenes por radiología o endoscopia son dos de las técnicas diagnósticas que más ayudan a dilucidar el proceso respiratorio que sufre un paciente. Sobre el momento en el que se encuentra el diagnóstico por imagen de las patologías del sistema respiratorio en veterinaria nos habla a continuación Andrés J. Flores.

  15. On The Living Room

    Directory of Open Access Journals (Sweden)

    Thomas Richards

    2013-03-01

    Full Text Available This text discusses the work The Living Room, directed by the author, and reflects on its meanings and functions. The article confronts problems performance raises in relation to contemporary social life, bringing forward the isolation of life today and the possibilities performance offers to fight it. We problematise the crisis experienced by the author and the consequent creation of the work as a mobile performative device in relation to the staging space. Finally, the work questions the forms of interaction and type of participation possible in performance.

  16. Programmed Cleaning and Environmental Sanitation.

    Science.gov (United States)

    Gardner, John C., Ed.

    Maintenance of sanitation in buildings, plants, offices, and institutions; the selection of cleaning materials for these purposes; and the organization and supervision of the cleaning program are becoming increasingly complex and needful of a higher cost of handling. This book describes these problems and gives helpful information and guidance for…

  17. Quantification of perchloroethylene residues in dry-cleaned fabrics.

    Science.gov (United States)

    Sherlach, Katy S; Gorka, Alexander P; Dantzler, Alexa; Roepe, Paul D

    2011-11-01

    We have used a novel gas chromatography/mass spectrometry (GC/MS)-based approach to quantify perchloroethylene (PCE) residues in dry-cleaned fabrics. Residual PCE was extracted from fabric samples with methanol and concentration was calculated by the gas chromatographic peak area, standardized using PCE calibration data. Extracts examined were from samples of 100% wool, polyester, cotton, or silk, which were dry cleaned from one to six times in seven different Northern Virginia dry-cleaning establishments. Additional experiments were conducted to investigate the kinetics of PCE release in the extraction solvent and to the open air. We found that polyester, cotton, and wool retained ≥ µM levels of PCE, that these levels increased in successive dry-cleaning cycles, and that PCE is slowly volatilized from these fabrics under ambient room air conditions. We found that silk does not retain appreciable PCE. Measured differences across dry-cleaning establishments and fabric type suggest more vigorous monitoring of PCE residues may be warranted. Environ. Toxicol. Chem. 2011;30:2481-2487. © 2011 SETAC.

  18. A Note on Clean Rings

    Institute of Scientific and Technical Information of China (English)

    Zhou Wang; Jianlong Chen

    2007-01-01

    Let R be a ring and g(x) a polynomial in C[x],where C=C(R) denotes the center of R.Camillo and Sim6n called the ring g(x)-clean if every element of R can be written as the sum of a unit and a root of g(x).In this paper,we prove that for a,b (E) C,the ring R is clean and b - a is invertible in R if and only if R is g1(x)-clean,where gl(x) = (x - a)(x - b).This implies that in some sense the notion of g(x)-clean rings in the Nicholson-Zhou Theorem and in the Camillo-Sim6n Theorem is indeed equivalent to the notion of clean rings.

  19. Micoses do sistema nervoso

    Directory of Open Access Journals (Sweden)

    Carlos da Silva Lacaz

    1947-03-01

    Full Text Available As micoses do sistema nervoso central não têm merecido atenção cuidadosa dos neurologistas. Elas afetam o neuraxe em diferente percentagem: a granulomatose criptocóccica (torulose é a mais freqüente, seguindo-se a actinomicose; a granulomatose paracoccidióidica só excepcionalmente determina lesões meningoencefálicas. Do ponto de vista clínico, as neuromicoses podem ser divididas em duas formas: tumorais encefalomedulares e meningíticas. Estas predominam sobre as tumorais, das quais são mais freqüentes as de localização encefálica. Não são raros os quadros mistos, meningoencetálicos. As formas tumorals encefálicas abrangem vários tipos anátomo-patológicos - abscesso, granuloma, nódulos e cistos - sendo mais comuns os dois primeiros, todos êles produzindo o quadro clinico da síndrome hipertensiva intracraniana. As formas meningomedulares, em geral, são secundárias às lesões ósseas vertebrais, sendo a actinomicose, por ser a mais osteófila, a micose que mais freqüentemente atinge a medula. Nestes casos, o quadro clínico da síndrome compressiva é o mais comum. As meninges participam do processo fúngico, na maior parte dos casos; as manifestações clínicas variam desde o simples meningismo, até as meningites purulentas e meningoencefalites graves, havendo a possibilidade de se formarem aracnoidites císticas, ependimites e bloqueios ventriculares, do aqueduto ou mesmo do canal raquidiano. O diagnóstico das micoses do sistema nervoso central é comumente um "achado de autópsia". Somente a verificação do cogumelo no líquor e o seu isolamento permitem um diagnóstico seguro. Outros dados liquóricos, quando bem interpretados com os achados clínicos e neurológicos, orientam o analista na pesquisa do agente fúngico. O quadro anátomo-patológico nada tem de caraterístico, a não ser a presença do agente parasitário e só o seu encontro firma o diagnóstico. Examinamos 25 casos de granulomatose

  20. Blastomicose do sistema nervoso

    Directory of Open Access Journals (Sweden)

    Horácio M. Canelas

    1951-09-01

    Full Text Available Os autores chamam a atenção sôbre os erros de diagnóstico nos casos de neuroblastomicose, seja nas formas meningoencefálicas, seja nas tumorais. São focalizadas a paracoccidioidose e a criptococose. Depois de caracterizarem clìnicamente a paracoccidioidose, acentuam a raridade das formas nervosas (1,2% dos casos dessa micose autopsiados no Departamento de Anatomia Patológica da Faculdade de Medicina da Universidade de São Paulo. Pela revisão da literatura foi verificado haver apenas 12 casos registrados. 0 caso de Casiello e Klass é o único em que o diagnóstico foi feito em vida; os demais, ou constituem achado de necropsia, ou foram inesperadamente revelados pelo exame histopatológico realizado após intervenções cirúrgicas. Os autores registram 2 casos de paracoccidioidose do sistema nervoso. No primeiro, tratava-se de meningomielorra-diculite crônica, sendo o parasito identificado no escarro; o segundo era portador de síndrome de compressão medular, cuja patogenia é discutida pelos autores, tendo sido a etiologia paracoccidióidica comprovada pelo exame da polpa e biópsia ganglionares. Considerações clínicas sôbre a criptococose precedem o relato de um caso de meningoencefalomielite subaguda, no qual fôra feito em vida o diagnóstico de paracoccidioidose, pelo exame micológico do liqüido cefalorraqueano; êste paciente, embora medicado com doses maciças de sulfa e tiossemicarbarsona, veio a falecer, tendo o exame anátomo-patológico revelado tratar-se, na realidade, de lesões nervosas produzidas pelo Crypíococcus neo-formans. Nos três casos era incisivo o caráter neurocirúrgico da sintomatologia. Entretanto, ante o diagnóstico de paracoccidioidose, foi instituído tratamento pelas sulfas, vacina específica e tiossemicarbarsona. Os resultados foram excelentes no caso 2, em que a terapêutica pôde ser instituída mais precocemente; melhoras também foram obtidas no caso 1. No caso 3, foram verificadas

  1. Application of the mechanism of clean development - MDL to the projects of PCHs operating in isolated system in Brazil; A aplicacao dos mecanismos de desenvolvimento limpo - MDL - em projetos de implantacao de pequenas centrais hidreletricas - PCHs em sistemas isolados no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Nunes, Camila Fernandes

    2006-07-01

    The present work considered to analyze the potential of application of the Mechanism of Clean Development - MDL to the projects of PCHs operating in isolated system. For in such a way, the emissions of gases of effect had been entered greenhouse - GEEs proceeding from a thermoelectric plant operating with diverse types of fuels: oil diesel, combustible oil, natural gas and coal and the emissions of one hydropower plant - a PCH. For comparison effect two scenes of performance of a PCH had been considered standard of 15MW: the first one corresponding to an area flooded of 3km{sup 2} and according to an area of 13km{sup 2}. Had the absence of data of emissions of GEEs for PCHs, a correlation with data of available CO{sub 2} emission of the UHE Curua-Una was established (chosen for the availability of referring data the measurements C-CO{sub 2} emission). The values calculated for the method of chamber of diffusion, which had most of the carbon emissions proceeding from hydropower reservoirs had been used to be proceeding from the diffusion of CO{sub 2} in the surface. The gotten results had demonstrated that it is possible if to credit of the benefits of the MDL through the implantation of PCHs operating in isolated systems in substitution the thermal plants. (author)

  2. Results of the filters change of the cooling system and cleaning of the spent fuel pool in the NPP-L V; Resultados del cambio de filtros del sistema de enfriamiento y limpieza de la alberca de combustible gastado en la CLV

    Energy Technology Data Exchange (ETDEWEB)

    Lara H, M. A., E-mail: marco.lara@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Carretera Cardel-Nautla Km 42.5, Alto Lucero, Veracruz (Mexico)

    2012-10-15

    The cooling system and cleaning of the spent fuel pool has for object to extract the heat of the decay irradiated fuel that is stored in the pool, to maintain the temperature and the water level of the pool to specific values, as well as to submit the water to a purification process through a filtration process and demineralization. To be able to carry out these functions the system has a filtrate system that is able to retain particles in suspension whose filtrate elements after several cycles retained highly activated metallic particles that saturated the filters, which ended up accumulating speed levels of dose exhibition of up to 70 rem/hour, for it, to the moment to be necessary the filters substitution several options were analyzed, from the robots employment (whose cost was considered in 1 million dollars) until the factory of special tools that it allowed the nuclear power plant of Laguna Verde (NPP-L V) to carry out the work with a dose and a minor budget (30 and 12.5 times minor respectively according to the initially estimated budget). This work describes the results of implementing the method selected by the NPP-L V that allowed to minimize times and collective dose with technology 100% Mexican, developed by personal of Electricity Federal Commission. (Author)

  3. Clean Metal Casting

    Energy Technology Data Exchange (ETDEWEB)

    Makhlouf M. Makhlouf; Diran Apelian

    2002-02-05

    The objective of this project is to develop a technology for clean metal processing that is capable of consistently providing a metal cleanliness level that is fit for a given application. The program has five tasks: Development of melt cleanliness assessment technology, development of melt contamination avoidance technology, development of high temperature phase separation technology, establishment of a correlation between the level of melt cleanliness and as cast mechanical properties, and transfer of technology to the industrial sector. Within the context of the first task, WPI has developed a standardized Reduced Pressure Test that has been endorsed by AFS as a recommended practice. In addition, within the context of task1, WPI has developed a melt cleanliness sensor based on the principles of electromagnetic separation. An industrial partner is commercializing the sensor. Within the context of the second task, WPI has developed environmentally friendly fluxes that do not contain fluorine. Within the context of the third task, WPI modeled the process of rotary degassing and verified the model predictions with experimental data. This model may be used to optimize the performance of industrial rotary degassers. Within the context of the fourth task, WPI has correlated the level of melt cleanliness at various foundries, including a sand casting foundry, a permanent mold casting foundry, and a die casting foundry, to the casting process and the resultant mechanical properties. This is useful in tailoring the melt cleansing operations at foundries to the particular casting process and the desired properties of cast components.

  4. Clean tracks for ATLAS

    CERN Multimedia

    2006-01-01

    First cosmic ray tracks in the integrated ATLAS barrel SCT and TRT tracking detectors. A snap-shot of a cosmic ray event seen in the different layers of both the SCT and TRT detectors. The ATLAS Inner Detector Integration Team celebrated a major success recently, when clean tracks of cosmic rays were detected in the completed semiconductor tracker (SCT) and transition radiation tracker (TRT) barrels. These tracking tests come just months after the successful insertion of the SCT into the TRT (See Bulletin 09/2006). The cosmic ray test is important for the experiment because, after 15 years of hard work, it is the last test performed on the fully assembled barrel before lowering it into the ATLAS cavern. The two trackers work together to provide millions of channels so that particles' tracks can be identified and measured with great accuracy. According to the team, the preliminary results were very encouraging. After first checks of noise levels in the final detectors, a critical goal was to study their re...

  5. Precision Cleaning - Path to Premier

    Science.gov (United States)

    Mackler, Scott E.

    2008-01-01

    ITT Space Systems Division s new Precision Cleaning facility provides critical cleaning and packaging of aerospace flight hardware and optical payloads to meet customer performance requirements. The Precision Cleaning Path to Premier Project was a 2007 capital project and is a key element in the approved Premier Resource Management - Integrated Supply Chain Footprint Optimization Project. Formerly precision cleaning was located offsite in a leased building. A new facility equipped with modern precision cleaning equipment including advanced process analytical technology and improved capabilities was designed and built after outsourcing solutions were investigated and found lacking in ability to meet quality specifications and schedule needs. SSD cleans parts that can range in size from a single threaded fastener all the way up to large composite structures. Materials that can be processed include optics, composites, metals and various high performance coatings. We are required to provide verification to our customers that we have met their particulate and molecular cleanliness requirements and we have that analytical capability in this new facility. The new facility footprint is approximately half the size of the former leased operation and provides double the amount of throughput. Process improvements and new cleaning equipment are projected to increase 1st pass yield from 78% to 98% avoiding $300K+/yr in rework costs. Cost avoidance of $350K/yr will result from elimination of rent, IT services, transportation, and decreased utility costs. Savings due to reduced staff expected to net $4-500K/yr.

  6. The acid cleaning method of labware for trace element analysis in snow and ice samples

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Acid cleaning processes were performed on a class 100 laminar flow clean bench assembled inside a class 1000 clean room.The ultrapure water was produced by Millipore RO (Reverse Osmosis) and Milli-Q water purification systems.The three purity grades of nitric acid used for cleaning include Merck reagent grade HNO3,Fisher "TraceMetal" grade HNO3,and the purest Fisher "Optima" grade HNO3.The various bottles,containers and other labware,which are in contact with the samples,are made of low-density polyethylene (LDPE) and FEP or PFA Teflon materials.The acid cleaning procedures of the bottles and other containers follow a successive four times cleaning through immersion in increasing purity of nitric acid baths at different concentrations during four weeks.The first acid bath is performed at room temperature,but the following three acid baths are heated on ceramic hotplates with a surface temperature of 45℃.In order to verify the efficiency of the acid cleaning method,cleaned bottles underwent a blank determination procedure using ELAN 6100 inductively coupled plasma spectrometry (ICP-MS).Results show that most measured trace elements are not detected and the elements detected are at very low concentrations.The blank values are comparable with that of bottles cleaned at Korea Polar Research Institute (KOPRI).Although the acid cleaning method is developed mainly for reliable measurements of trace elements in snow and ice samples,it can also be used for investigations of trace elements in other environmental samples.

  7. CLEAN Technique for Polarimetric ISAR

    Directory of Open Access Journals (Sweden)

    M. Martorella

    2008-01-01

    Full Text Available Inverse synthetic aperture radar (ISAR images are often used for classifying and recognising targets. To reduce the amount of data processed by the classifier, scattering centres are extracted from the ISAR image and used for classifying and recognising targets. This paper addresses the problem of estimating the position and the scattering vector of target scattering centres from polarimetric ISAR images. The proposed technique is obtained by extending the CLEAN technique, which was introduced in radar imaging for extracting scattering centres from single-polarisation ISAR images. The effectiveness of the proposed algorithm, namely, the Polarimetric CLEAN (Pol-CLEAN is tested on simulated and real data.

  8. Sistema de coordenadas para AR

    OpenAIRE

    Aguiar Cabello, Arnau

    2012-01-01

    Este proyecto realiza un estudio sobre las diferentes opciones referentes a la Realidad Aumentada, como primera parte. La Realidad Aumentada es una tecnología que en los últimos años ha experimentado un gran desarrollo. La Realidad Aumentada consiste en sobreponer información virtual con la ya existente realidad física. Como segunda parte, se escoge una de estas opciones, NyARToolkit, y se explica el funcionamiento del sistema de coordenadas basado en marcadores. El sistema basado en marca...

  9. Sistema de salud de Brasil

    OpenAIRE

    Víctor Becerril Montekio; Guadalupe Medina; Rosana Aquino

    2011-01-01

    En este trabajo se describe el sistema de salud de Brasil, que está compuesto por un sector público que cubre alrededor de 75% de la población y un creciente sector privado que ofrece atención a la salud al restante 25% de los brasileños. El sector público está constituido por el Sistema Único de Salud (SUS) y su financiamiento proviene de impuestos generales y contribuciones sociales recaudadas por los tres niveles de gobierno (federal, estatal y municipal). El SUS presta servicios de manera...

  10. Un sistema desconocido pero internacional

    OpenAIRE

    2008-01-01

    Se presenta en este trabajo un estudio sobre el Sistema Internacional de Unidades (SI) en la etapa de Educación Secundaria (13 a 18 años), cuyo objetivo es comprobar si el alumnado conoce las siete magnitudes y unidades fundamentales, que manejan habitualmente en el aula. A partir del currículum de ciencias se han analizado las posibles causas de las deficiencias encontradas en las magnitudes fundamentales y derivadas. Los resultados muestran que el sistema a pesar de ser inter...

  11. El sistema reticulo-endotelial

    OpenAIRE

    Cuartas L., Carlos J.

    2011-01-01

    Definición.-Este nombre fue dado por Aschoff a una categoríacelular, cuyos elementos se encuentran profusamente distribuídos en la trama de sostén de diferentes órganos y tejidos; esos elementos gozan de características funcionales que justifican su individualización en un sistema celular especial. Muchos son los trabajos de investigación que han puesto de manifiesto las propiedades de este sistema celular, a pesar de su conocimiento relativamente reciente. Gracias a ellos, sabemos que esos e...

  12. Application of FMEA-DEA (Failure Modes and Effect Analysis - Data Envelopment Analysis) to the air conditioning system of the control room a nuclear power plant; Aplicacao de FMEA-DEA ao sistema de ar condicionado da sala de controle de uma usina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Barbosa Junior, Gilberto Varanda

    2007-03-15

    This dissertation presents the FMEA-DEA analysis application to the air conditioning system of the control room of a nuclear power plant. After obtaining the failure modes, the index associated to the occurrence probability, the severity of the effects and the potential of detention, a priority order is established for the failure modes or deviations. This number is obtained by multiplying the three mentioned index that vary in a natural scale from 1 to 10, where the higher the index, the more critical the situation will be. In this work, it is intended to use a model based on the data envelopment analysis, DEA jointly with the FMEA, to identify the current efficiency of the system and which failure modes or deviations are considered more critical, and by means of the weights attributed for the mathematical modeling to identify which index are contributing more for these deviations. From this identification, improvements can be set, which may consider administrative changes, operator training and so on, thus adding value to the final product. (author)

  13. Algunos Hechos Estilizados del Sistema Bancario Peruano

    OpenAIRE

    Espino, Freddy

    2013-01-01

    Estima el tipo de relación que existe entre las principales variables del sistema bancario (colocaciones y depósitos) y las variables macroeconómicas que afectan el desempeño del sistema bancario.

  14. Hansen Cleaning Solvent Research Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Environmental regulation will force current baseline  precision cleaning solvent (AK-225) to be phased out starting 2015. We plan to develop  a new...

  15. Clean coal - a national urgency

    Energy Technology Data Exchange (ETDEWEB)

    Gupta, S.M.; Sahai, R. [Indian Bureau of Mines, Nagpur (India). Technical Consultancy Division

    2000-07-01

    India is the third largest producer and consumer of coal in the world. Coal generally has a high ash content, thereby requiring that it be cleaned for proper use. Technological advances now make it possible to reduce pollution considerably, even as energy use increases. However, to reduce environmental impacts, technologies for cleaning coal before combustion need to be developed. The paper focuses on the need for clean coal production and the benefits associated with it. Although the country is rich in coal reserves, the generally inferior quality of coal will lead to its depletion if it is not used cleanly. Increasing the proportion of prepared coal from the current level of less than 5% (i.e. 10-11 million tonnes per annum) of all coal consumed will lead to a massive saving. This can be achieved if new washeries are set up, preferably near the coalfields. 2 figs.

  16. Tracking Clean Energy Progress 2013

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-06-01

    Tracking Clean Energy Progress 2013 (TCEP 2013) examines progress in the development and deployment of key clean energy technologies. Each technology and sector is tracked against interim 2020 targets in the IEA Energy Technology Perspectives 2012 2°C scenario, which lays out pathways to a sustainable energy system in 2050. Stark message emerge: progress has not been fast enough; large market failures are preventing clean energy solutions from being taken up; considerable energy efficiency remains untapped; policies need to better address the energy system as a whole; and energy-related research, development and demonstration need to accelerate. Alongside these grim conclusions there is positive news. In 2012, hybrid-electric vehicle sales passed the 1 million mark. Solar photovoltaic systems were being installed at a record pace. The costs of most clean energy technologies fell more rapidly than anticipated.

  17. Efficient methods of piping cleaning

    Directory of Open Access Journals (Sweden)

    Orlov Vladimir Aleksandrovich

    2014-01-01

    Full Text Available The article contains the analysis of the efficient methods of piping cleaning of water supply and sanitation systems. Special attention is paid to the ice cleaning method, in course of which biological foil and various mineral and organic deposits are removed due to the ice crust buildup on the inner surface of water supply and drainage pipes. These impurities are responsible for the deterioration of the organoleptic properties of the transported drinking water or narrowing cross-section of drainage pipes. The co-authors emphasize that the use of ice compared to other methods of pipe cleaning has a number of advantages due to the relative simplicity and cheapness of the process, economical efficiency and lack of environmental risk. The equipment for performing ice cleaning is presented, its technological options, terms of cleansing operations, as well as the volumes of disposed pollution per unit length of the water supply and drainage pipelines. It is noted that ice cleaning requires careful planning in the process of cooking ice and in the process of its supply in the pipe. There are specific requirements to its quality. In particular, when you clean drinking water system the ice applied should be hygienically clean and meet sanitary requirements.In pilot projects, in particular, quantitative and qualitative analysis of sediments adsorbed by ice is conducted, as well as temperature and the duration of the process. The degree of pollution of the pipeline was estimated by the volume of the remote sediment on 1 km of pipeline. Cleaning pipelines using ice can be considered one of the methods of trenchless technologies, being a significant alternative to traditional methods of cleaning the pipes. The method can be applied in urban pipeline systems of drinking water supply for the diameters of 100—600 mm, and also to diversion collectors. In the world today 450 km of pipelines are subject to ice cleaning method.Ice cleaning method is simple

  18. 2012 Clean Energy: Project Summaries

    OpenAIRE

    Asian Development Bank

    2013-01-01

    This report summarizes the investments in clean energy made by the operations departments of the Asian Development Bank (ADB) in 2012, condensing information from project databases and formal reports in an easy-to-reference format. This report was prepared by ADB’s Clean Energy Program which provides the cohesive agenda that encompasses and guides ADB’s lending and non-lending assistance, initiatives, and plan of action for sustainable growth in Asia and the Pacific.

  19. Clean Energy Solutions Center (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Reategui, S.

    2012-07-01

    The Clean Energy Ministerial launched the Clean Energy Solutions Center in April, 2011 for major economy countries, led by Australia and U.S. with other CEM partners. Partnership with UN-Energy is extending scope to support all developing countries: 1. Enhance resources on policies relating to energy access, small to medium enterprises (SMEs), and financing programs; 2. Offer expert policy assistance to all countries; 3. Expand peer to peer learning, training, and deployment and policy data for developing countries.

  20. Efficient methods of piping cleaning

    OpenAIRE

    Orlov Vladimir Aleksandrovich; Nechitaeva Valentina Anatol'evna; Bogomolova Irina Olegovna; Shaykhetdinova Yuliya Aleksandrovna; Daminova Yuliya Farikhovna

    2014-01-01

    The article contains the analysis of the efficient methods of piping cleaning of water supply and sanitation systems. Special attention is paid to the ice cleaning method, in course of which biological foil and various mineral and organic deposits are removed due to the ice crust buildup on the inner surface of water supply and drainage pipes. These impurities are responsible for the deterioration of the organoleptic properties of the transported drinking water or narrowing cross-section of d...

  1. Sistema de incendios inalámbrico

    OpenAIRE

    Menéndez Muñiz, Sergio

    2012-01-01

    Sistema de detección de incendios inalámbrico basado en dispositivos "motes" para la monitorización del estado del sistema, detección y reconocimiento de alarmas. Sistema de detecció d'incendis sense fils basat en dispositius "motes" per a la monitorització de l'estat del sistema, detecció i reconeixement d'alarmes.

  2. Improving hospital staff compliance with environmental cleaning behavior.

    Science.gov (United States)

    Ramphal, Lilly; Suzuki, Sumhiro; McCracken, Izah Mercy; Addai, Amanda

    2014-04-01

    Reducing the incidence of healthcare-associated infections requires proper environmental cleanliness of frequently touched objects within the hospital environment. An intervention was launched in June 2012 and repeated in February 2013 and August 2013 to increase hospital room cleanliness with repeated education and training of nursing and environmental services staff to reduce healthcare-associated infections at Cook Children's Medical Center. Random rooms were tested, staff were trained about proper cleaning, rooms were retested for surface cleanliness, and preintervention and postintervention values were compared. The percentage of cleaned surfaces improved incrementally between the three trials-with values of 20%, 49%, and 82% showing that repeat training favorably changed behavior in the staff (P = 0.007). During the study period, during which other infection control interventions were also introduced, there was a decline from 0.27 to 0.21 per 1000 patient days for Clostridium difficile infection, 0.43 to 0.21 per 1000 patient days for ventilator-associated infections, 1.8% to 1.2% for surgical site infections, and 1.2 to 0.7 per 1000 central venous line days for central line-associated bloodstream infections.

  3. Analysis and evaluation methods for chemical contaminants in clean room air; Kagaku osen no bunseki hyokaho clean room kukichu no kagaku osen busshitsu ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Fujimoto, T.

    1998-07-31

    As for, chemical contamination in a cleanroom air has taken up as a important problem. As the main source is building materials, after construction the execution of countermeasures is difficult. Out-gas evaluation and selection in building materials, chemical filters for removing specific organic matter and so on, are a large technical theme in the future and analytical techniques corresponding them become necessary. In this paper, analytical methods of airborne molecular contaminants (AMCs) are introduced. Main samples are AMCs in cleanroom atmosphere, on silicon wafer surface and out-gas from raw materials for cleanroom construction materials such as sealant, plastics and so on. Analytical methods consist of quantification of inorganic compounds, organic compounds and identification of abnormal spot with local/surface analysis. Various interesting findings with analytical data are obtained and investigated. 22 refs., 6 figs., 5 tabs.

  4. Clean Energy Application Center

    Energy Technology Data Exchange (ETDEWEB)

    Freihaut, Jim

    2013-09-30

    The Mid Atlantic Clean Energy Application Center (MACEAC), managed by The Penn State College of Engineering, serves the six states in the Mid-Atlantic region (Pennsylvania, New Jersey, Delaware, Maryland, Virginia and West Virginia) plus the District of Columbia. The goals of the Mid-Atlantic CEAC are to promote the adoption of Combined Heat and Power (CHP), Waste Heat Recovery (WHR) and District Energy Systems (DES) in the Mid Atlantic area through education and technical support to more than 1,200 regional industry and government representatives in the region. The successful promotion of these technologies by the MACEAC was accomplished through the following efforts; (1)The MACEAC developed a series of technology transfer networks with State energy and environmental offices, Association of Energy Engineers local chapters, local community development organizations, utilities and, Penn State Department of Architectural Engineering alumni and their firms to effectively educate local practitioners about the energy utilization, environmental and economic advantages of CHP, WHR and DES; (2) Completed assessments of the regional technical and market potential for CHP, WHR and DE technologies application in the context of state specific energy prices, state energy and efficiency portfolio development. The studies were completed for Pennsylvania, New Jersey and Maryland and included a set of incentive adoption probability models used as a to guide during implementation discussions with State energy policy makers; (3) Using the technical and market assessments and adoption incentive models, the Mid Atlantic CEAC developed regional strategic action plans for the promotion of CHP Application technology for Pennsylvania, New Jersey and Maryland; (4) The CHP market assessment and incentive adoption model information was discussed, on a continuing basis, with relevant state agencies, policy makers and Public Utility Commission organizations resulting in CHP favorable incentive

  5. More room for ISOLDE

    CERN Multimedia

    2005-01-01

    To meet the needs of the new ISOLDE experiments, a new extension has been added to the facility's Building 170. The new extension to Building 170. Moving around the ISOLDE hall was almost like an obstacle course until now. The facility's Building 170 simply didn't have an inch to spare and the ISOLDE team's need to set up new experiments, whose installation could have created difficulties from the safety point of view, only exacerbated the problem. "We had ambitious plans to develop new experiments but no room for them", says Mats Lindroos, ISOLDE's technical coordinator. The only solution was to extend the existing building". This was how a new building saw the light of day. Measuring 24 metres long, 20 metres wide and 12 metres high, it is an extension to the existing Building 170 and should be ready for use this year. The new structure makes use of the existing infrastructure, with part of the end wall of Building 170 being kept as a support for steel platforms. The top of this wall had to be cut away ...

  6. El sistema tributario japonés

    OpenAIRE

    Yoshiyasu Okada

    2002-01-01

    Este documento primeramente trata las tendencias recientes y el estado actual del sistema tributario japonés como antecedentes. Luego resume los impuestos principales y describe el actual sistema. Finalmente trata los incentivos tributarios y los aspectos internacionales del sistema japonés.

  7. Graphene-based room-temperature implementation of a modified Deutsch-Jozsa quantum algorithm.

    Science.gov (United States)

    Dragoman, Daniela; Dragoman, Mircea

    2015-12-04

    We present an implementation of a one-qubit and two-qubit modified Deutsch-Jozsa quantum algorithm based on graphene ballistic devices working at room temperature. The modified Deutsch-Jozsa algorithm decides whether a function, equivalent to the effect of an energy potential distribution on the wave function of ballistic charge carriers, is constant or not, without measuring the output wave function. The function need not be Boolean. Simulations confirm that the algorithm works properly, opening the way toward quantum computing at room temperature based on the same clean-room technologies as those used for fabrication of very-large-scale integrated circuits.

  8. Thoughts on Seeing "El Sistema"

    Science.gov (United States)

    Booth, Eric

    2009-01-01

    The FESNOJIV (the Spanish acronym for the State Foundation for the National System of Youth and Children's Orchestras), more commonly known as "El Sistema," teaches 300,000 of Venezuela's poorest children in the nationwide music learning program. Many begin attending the "nucleo" as early as age two or three, and the vast majority continue well…

  9. Thoughts on Seeing "El Sistema"

    Science.gov (United States)

    Booth, Eric

    2009-01-01

    The FESNOJIV (the Spanish acronym for the State Foundation for the National System of Youth and Children's Orchestras), more commonly known as "El Sistema," teaches 300,000 of Venezuela's poorest children in the nationwide music learning program. Many begin attending the "nucleo" as early as age two or three, and the vast…

  10. Knowledge Exchange with Sistema Scotland

    Science.gov (United States)

    Allan, Julie; Moran, Nikki; Duffy, Celia; Loening, Gica

    2010-01-01

    This paper reports on a knowledge exchange project, funded by the Scottish Funding Council and undertaken by a group of researchers from three higher education institutions in Scotland and the project partner, Sistema Scotland. This newly established charity is attempting to implement a major programme of social change, developed in Venezuela,…

  11. Mechanisms of single bubble cleaning.

    Science.gov (United States)

    Reuter, Fabian; Mettin, Robert

    2016-03-01

    The dynamics of collapsing bubbles close to a flat solid is investigated with respect to its potential for removal of surface attached particles. Individual bubbles are created by nanosecond Nd:YAG laser pulses focused into water close to glass plates contaminated with melamine resin micro-particles. The bubble dynamics is analysed by means of synchronous high-speed recordings. Due to the close solid boundary, the bubble collapses with the well-known liquid jet phenomenon. Subsequent microscopic inspection of the substrates reveals circular areas clean of particles after a single bubble generation and collapse event. The detailed bubble dynamics, as well as the cleaned area size, is characterised by the non-dimensional bubble stand-off γ=d/Rmax, with d: laser focus distance to the solid boundary, and Rmax: maximum bubble radius before collapse. We observe a maximum of clean area at γ≈0.7, a roughly linear decay of the cleaned circle radius for increasing γ, and no cleaning for γ>3.5. As the main mechanism for particle removal, rapid flows at the boundary are identified. Three different cleaning regimes are discussed in relation to γ: (I) For large stand-off, 1.8substrate and remove particles without significant contact of the gas phase. (II) For small distances, γsubstrate are driven by the jet impact with its subsequent radial spreading, and by the liquid following the motion of the collapsing and rebounding bubble wall. Both flows remove particles. Their relative timing, which depends sensitively on the exact γ, appears to determine the extension of the area with forces large enough to cause particle detachment. (III) At intermediate stand-off, 1.1substrate, but acts with cleaning mechanisms similar to an effective small γ collapse: particles are removed by the jet flow and the flow induced by the bubble wall oscillation. Furthermore, the observations reveal that the extent of direct bubble gas phase contact to the solid is partially smaller than the

  12. Megasonic cleaning: effect of dissolved gas properties on cleaning

    Science.gov (United States)

    Shende, Hrishi; Singh, Sherjang; Baugh, James; Dietze, Uwe; Dress, Peter

    2013-06-01

    Current and future lithography techniques require complex imaging improvement strategies. These imaging improvement strategies require printing of sub-resolution assist-features (SRAF) on photomasks. The size of SRAF's has proven to be the main limiting factor in using high power Megasonic cleaning process on photomasks. These features, due to high aspect ratio are more prone to damage at low Megasonic frequencies and at high Megasonic powers. Additionally the non-uniformity of energy dissipated during Megasonic cleaning is a concern for exceeding the damage threshold of the SRAFs. If the cavitation events during Megasonic cleaning are controlled in way to dissipate uniform energy, better process control can be achieved to clean without damage. The amount and type of gas dissolved in the cleaning liquid defines the cavitation behavior. Some of the gases possess favourable solubility and adiabatic properties for stable and controlled cavitation behaviour. This paper particularly discusses the effects of dissolved Ar gas on Megasonic characteristics. The effect of Ar Gas is characterized by measuring acoustic energy and Sonoluminscense. The phenomenon is further verified with pattern damage studies.

  13. Madness in Sartre's "The Room"

    NARCIS (Netherlands)

    Jongeneel, E.C.S.

    2009-01-01

    In "The Room," part of his short story collection, The Wall (1938), Jean-Paul Sartre investigates madness as an alternative way of bourgeois life and thus takes a stand in the contemporary debate on the existential status of mental illness. "The Room" is a case-study of a "limit situation," as well

  14. Experimental investigation of performance of a novel ventilation method for hospital patient rooms

    DEFF Research Database (Denmark)

    Melikov, Arsen Krikor; Bolashikov, Zhecho Dimitrov; Brand, Marek

    2010-01-01

    A novel hospital bed integrated ventilation and cleaning unit (HBIVCU) was developed to reduce the exposure of medical staff, visitors, etc. to coughed air from a sick patient. The performance efficiency of the unit was studied in a full-scale mock-up of a hospital room with two beds with patients...

  15. Las virtudes del sistema binominal

    Directory of Open Access Journals (Sweden)

    John M Carey

    2006-01-01

    Full Text Available El sistema único de elecciones legislativas chileno, en el que cada distrito elige a dos representantes (M=2, ha sido objeto de controversia y de propuestas de reforma, ya que fue impuesto por el régimen autoritario saliente en 1990. La mayor parte de ellas aboga por la llamada mayor proporcionalidad. Este ensayo sostiene que, a pesar de sus orígenes no democráticos, el sistema M=2 ha funcionado relativamente bien respecto a los sistemas empleados en muchos otros países. En particular, M=2 en Chile entrega una mezcla adecuada de representatividad, gobernabilidad y responsabilidad individual del legislador. El ensayo considera varias alternativas para la reforma y perfila algunos problemas potenciales que cada una implicaría. Si se reforma el sistema chileno, entonces el autor recomienda que se haga por pasos incrementales, no fundamentales -un aumento moderado en la magnitud de cada distrito-, pero manteniendo las listas abiertas y no haciendo el salto a un sistema mixto de miembros (SMMChile's unique system of legislative elections, in which each district elects two representatives (M=2, has been subject to controversy and a target for reform proposals since it was imposed on the country by the outgoing authoritarian regime in 1990. Most reform advocates call for greater proportionality. This essay argues that, desipte its undemocratic origins, the M=2 system has performed quite well relative to systems used in many other countries. In particular, M=2 in Chile delivers a reasonable mix of representativeness, governability, and individual legislator accountability. The essay goes on to consider various alternatives for reform and outlines some potential problems each would entail. If the Chilean system is to be reformed, the essay recommends incrementalism - a moderate increase in district magnitude, perhaps, but maintaining open lists, and no change to a mixed-member system (MMS

  16. Electromagnetically Clean Solar Arrays

    Science.gov (United States)

    Stem, Theodore G.; Kenniston, Anthony E.

    2008-01-01

    The term 'electromagnetically clean solar array' ('EMCSA') refers to a panel that contains a planar array of solar photovoltaic cells and that, in comparison with a functionally equivalent solar-array panel of a type heretofore used on spacecraft, (1) exhibits less electromagnetic interferences to and from other nearby electrical and electronic equipment and (2) can be manufactured at lower cost. The reduction of electromagnetic interferences is effected through a combination of (1) electrically conductive, electrically grounded shielding and (2) reduction of areas of current loops (in order to reduce magnetic moments). The reduction of cost is effected by designing the array to be fabricated as a more nearly unitary structure, using fewer components and fewer process steps. Although EMCSAs were conceived primarily for use on spacecraft they are also potentially advantageous for terrestrial applications in which there are requirements to limit electromagnetic interference. In a conventional solar panel of the type meant to be supplanted by an EMCSA panel, the wiring is normally located on the back side, separated from the cells, thereby giving rise to current loops having significant areas and, consequently, significant magnetic moments. Current-loop geometries are chosen in an effort to balance opposing magnetic moments to limit far-0field magnetic interactions, but the relatively large distances separating current loops makes full cancellation of magnetic fields problematic. The panel is assembled from bare photovoltaic cells by means of multiple sensitive process steps that contribute significantly to cost, especially if electomagnetic cleanliness is desired. The steps include applying a cover glass and electrical-interconnect-cell (CIC) sub-assemble, connecting the CIC subassemblies into strings of series-connected cells, laying down and adhesively bonding the strings onto a panel structure that has been made in a separate multi-step process, and mounting the

  17. Representações de puérperas sobre o sistema alojamento conjunto: do abandono ao acolhimento Representación de las puérperas acerca del alojamiento conjunto: del abandono al acogimiento Mothers' representation concerning the rooming-in: from the abandonment to the acceptance

    Directory of Open Access Journals (Sweden)

    Alda Valéria Neves Soares

    2003-06-01

    Full Text Available O objetivo desse estudo foi compreender a representação social das puérperas acerca do Alojamento Conjunto (AC. Participaram 23 puérperas internadas no AC do HU-USP. A análise dos dados, obtidos por entrevistas individuais e grupos focais, baseou-se nas Representação Sociais. Uma das representações sobre sua internação mostra sentimento de medo, submissão às rotinas institucionais e equipe de saúde, um misto de acomodação e resistência a maneira impessoal como são tratadas. A Hospitalização: do abandono ao acolhimento, indica como a disponibilidade de interagir dos profissionais atua como elemento de re-significação das representações de abandono e indiferença sobre o atendimento à mulher.El objetivo de este estudio fue el de comprender la representación social de las puérperas acerca del Alojamiento Conjunto (AC. Participaron 23 puérperas internadas en el AC del Hospital Universitario de la USP. El análisis de los datos, obtenidos por entrevistas individuales y grupos focales, fue realizada en base a los presupuestos de las Representaciones Sociales. Una de las representaciones de las mujeres sobre su internación hospitalar muestra el sentimiento de miedo, sumisión a las rutinas institucionales y al equipo de salud, una combinación entre acomodo y resistencia de manera muchas veces impersonal de la como son tratadas. La Hospitalización: del abandono al acogimiento, indica también, como la disponibilidad de algunos profesionales, en interactuar efectivamente con esas mujeres, actúa como elemento de re-significación de las representaciones de abandono e indiferencia que éstas cargam consigo, sobre la atención a la mujer.The Objective of this study was understand the mothers' social representation concerning the rooming-in. Population: 23 mothers assisted in the University Hospital of São Paulo University. Data analysis was obtained by individual and group interviews, based on the Social Representation

  18. Sistemas operativos distribuídos

    OpenAIRE

    Bastidas C., Jose Fernando; Carrillo Guzmán, Herbert; Cifuentes C., David Eduardo; Serrano B., María Fernanda; Vargas Cabas, Andres

    2010-01-01

    Desde hace algunos años el uso de los computadores ha cambiado enormemente, debido a la transición, desde los sistemas centralizados que constan de un único CPU, sus periféricos de memoria y algunas terminales, hacia sistemas de cómputo compuestos por un gran número de CPUs, conectados mediante una red de alta velocidad, conocidos como Sistemas Distribuidos. Aunque los sistemas operativos necesarios para estos Sistemas Distribuidos están apenas en etapa de sur...

  19. Are Breast Surgical Operations Clean or Clean Contaminated?

    Science.gov (United States)

    Kataria, Kamal; Bagdia, Amit; Srivastava, Anurag

    2015-12-01

    The breast surgeries are classically taught as clean surgical procedures. The infection rates following breast surgery ranges from 3 to 15 %, which is much higher than infection rates after clean surgery (ranging from 1.5 to 3 %). This high infection rate following breast surgery can be explained by opening of the ductal system to outside world through nipple similar to the gastrointestinal and genitourinary system. We conducted a systematic review of infection following breast surgeries. We searched various randomized controlled trials, meta-analysis, and Cochrane Reviews over PubMed and Medline via the Internet. These evidences were found to support the thesis, "Breast surgeries need to be reclassified as clean-contaminated". We recommend the use of prophylactic antibiotics in breast surgery.

  20. Cleaning properties of dry adhesives

    Institute of Scientific and Technical Information of China (English)

    J.; P.; DíAZ; TéLLEZ; D.; SAMEOTO; C.; MENON

    2010-01-01

    In this paper we present a study into the cleaning properties of synthetic dry adhesives. We have manufactured the adhesive micro-fibres through a low-cost, high yield fabrication method using Sylgard 184 Polydimethylsiloxane (PDMS) as the structural material. We deliberately contaminated the adhesive samples with different sized particles in the micro and macro scales and tested different cleaning methods for their efficacy with respect to each particle size. We investigated different cleaning methods, which included the use of wax moulding, vibration and pressure sensitive adhesives. For adhesion testing we used a custom system with a linear stage and a force sensor indenting a hemispherical probe into the adhesive surface and measuring the pull-off force. To characterize the cleaning efficacy we visually inspected each sample in a microscope and weighed the samples with a microgram-accuracy analytical balance. Results showed that the moulding method induced adhesion recovery in a greater percentage than the other cleaning methods and even helped with the recovery of collapsed posts in some cases. On the other hand pressure sensitive adhesives seem to have the upper hand with regards to certain particle sizes that can potentially pose problems with the moulding method.

  1. Introducción al estudio de los sistemas económicos

    OpenAIRE

    García Nossa, Antonio

    2010-01-01

    Interdependencia de los sistemas; Coexistencia de los sistemas; Sucesión y coexistencia; Sistemas históricos y sistemas geopolíticos; Factores cuantitativos y cualitativos de los sistemas; Principios generales de los sistemas.

  2. Laser cleaning of tungsten ribbon

    Energy Technology Data Exchange (ETDEWEB)

    Kumar, Aniruddha, E-mail: nontee65@rediffmail.com [Advanced Fuel Fabrication Facility, Bhabha Atomic Research Centre, Tarapur, Maharashtra, 401504 (India); Sonar, V.R.; Das, D.K.; Bhatt, R.B.; Behere, P.G.; Afzal, Mohd.; Kumar, Arun [Advanced Fuel Fabrication Facility, Bhabha Atomic Research Centre, Tarapur, Maharashtra, 401504 (India); Nilaya, J.P.; Biswas, D.J. [Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, 400085 (India)

    2014-07-01

    Removal of a thin oxide layer from a tungsten ribbon was achieved using the fundamental, second and third harmonic radiation from a Q- switched Nd-YAG laser. It was found that beyond the threshold, oxide removal was achieved at all wavelengths for a wide range of fluence values. The removal mechanism of the oxide layer was found to be critically dependent on both wavelength and fluence of the incident radiation and has been identified as ejection or sublimation. The un-cleaned and cleaned surfaces were analyzed by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDS) and atomic force microscopy (AFM). Laser cleaned tungsten ribbons were used in a thermal ionization mass spectrometer (TIMS) to determine isotopic composition of Neodymium atoms.

  3. Hyperbolic Divergence Cleaning for SPH

    CERN Document Server

    Tricco, Terrence S

    2012-01-01

    We present SPH formulations of Dedner et al's hyperbolic/parabolic divergence cleaning scheme for magnetic and velocity fields. Our implementation preserves the conservation properties of SPH which is important for stability. This is achieved by deriving an energy term for the Psi field, and imposing energy conservation on the cleaning subsystem of equations. This necessitates use of conjugate operators for divB and gradPsi in the numerical equations. For both the magnetic and velocity fields, the average divergence error in the system is reduced by an order of magnitude with our cleaning algorithm. Divergence errors in SPMHD are maintained to < 1%, even for realistic 3D applications with a corresponding gain in numerical stability. Density errors for an oscillating elliptic water drop using weakly compressible SPH are reduced by a factor of two.

  4. Clean Coal Diesel Demonstration Project

    Energy Technology Data Exchange (ETDEWEB)

    Robert Wilson

    2006-10-31

    A Clean Coal Diesel project was undertaken to demonstrate a new Clean Coal Technology that offers technical, economic and environmental advantages over conventional power generating methods. This innovative technology (developed to the prototype stage in an earlier DOE project completed in 1992) enables utilization of pre-processed clean coal fuel in large-bore, medium-speed, diesel engines. The diesel engines are conventional modern engines in many respects, except they are specially fitted with hardened parts to be compatible with the traces of abrasive ash in the coal-slurry fuel. Industrial and Municipal power generating applications in the 10 to 100 megawatt size range are the target applications. There are hundreds of such reciprocating engine power-plants operating throughout the world today on natural gas and/or heavy fuel oil.

  5. In the LEAR control room

    CERN Multimedia

    1983-01-01

    View into the control room of the Low Energy Antiproton Ring (LEAR). Edgar Asseo (sitting) and Dieter Möhl and Georges Carron reflecting upon some beam dynamics (or hardware?) problem. Vassilis Agoritsas, in the background, leaning over a plan or a keyboard. LEAR in its early years (1982 to about 1990) was run from this local control room in building 363 close to the end of the PS South Hall, where the ring was installed. Later-on the operation was surveyed from the PS main control room.

  6. Laser paper cleaning: the method of cleaning historical books

    Science.gov (United States)

    Zekou, Evangelini; Tsilikas, Ioannis; Chatzitheodoridis, Elias; Serafetinides, Alexander A.

    2016-01-01

    Conservation of cultural heritage treasures is the most important issue for transferring knowledge to the public through the next generation of students, academics, and researchers. Although this century is authenticating e-books and information by means of electronic text, still historical manuscripts as content as well as objects are the main original recourses of keeping a record of this transformation. The current work focuses on cleaning paper samples by the application of pulsed light, which is interventional. Experiments carried out using paper samples that are artificially colonized with Ulocladium chartarum. Paper is treated by Nd:YAG laser light. The available wavelength is 1064 nm, at various fluences, repetition rates and number of pulses. Two types of paper are stained with fungi colonies, which grow on substrates of clean paper, as well as on paper with ink text. The first type of paper is Whatman No.1056, which is closer to pure cellulose. The second type of paper is a page of a cultural heritage book published in 1926. Cleaning is performed using laser irradiation, thus defining the damage threshold of each sample. The treatment on paper Watman showed a yellowing, especially on areas with high concentration of fungi. The second sample was more durable to the exposure, performing the best results at higher fluences. Eventually, the paper samples are characterized, with optical microscopy and SEM/EDX analyses, prior to and after cleaning.

  7. [Design, equipment, and management for air conditioning in operating room].

    Science.gov (United States)

    Fuji, Kumiko; Mizuno, Ju

    2011-11-01

    In order to maintain air cleanliness in the operating room (OR) permanently, air exchange rate in the OR should be more than 15 times x hr(-1), the laminar air flow should be kept, and the numbers of the persons in the OR and the numbers of opening and closing OR door should be limited. High efficiency particulate air (HEPA) filter is effective in collection and removal of airborne microbes, and is used in the biological clean room. We need to design, equip, and manage the OR environment according to Guideline for Design and Operation of Hospital HVAC Systems HEAS-02-2004 established by Healthcare Engineering Association of Japan and Guideline for Prevention of Surgical Site Infection (SSI) established by the Center for Disease Control and Prevention (CDC) in the USA.

  8. Nanostructured ZnO Films for Room Temperature Ammonia Sensing

    Science.gov (United States)

    Dhivya Ponnusamy; Sridharan Madanagurusamy

    2014-09-01

    Zinc oxide (ZnO) thin films have been deposited by a reactive dc magnetron sputtering technique onto a thoroughly cleaned glass substrate at room temperature. X-ray diffraction revealed that the deposited film was polycrystalline in nature. The field emission scanning electron micrograph (FE-SEM) showed the uniform formation of a rugby ball-shaped ZnO nanostructure. Energy dispersive x-ray analysis (EDX) confirmed that the film was stoichiometric and the direct band gap of the film, determined using UV-Vis spectroscopy, was 3.29 eV. The ZnO nanostructured film exhibited better sensing towards ammonia (NH3) at room temperature (˜30°C). The fabricated ZnO film based sensor was capable of detecting NH3 at as low as 5 ppm, and its parameters, such as response, selectivity, stability, and response/recovery time, were also investigated.

  9. 32 CFR 518.9 - Reading room.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Reading room. 518.9 Section 518.9 National... RELATIONS THE FREEDOM OF INFORMATION ACT PROGRAM FOIA Reading Rooms § 518.9 Reading room. (a) Reading room... the records described, DA may elect to place other records in their reading room, and also make...

  10. Nociones del Sistema Tributario Mexicano

    Directory of Open Access Journals (Sweden)

    Froylán Balderas Torres

    2012-01-01

    Full Text Available La presente información se encamina a interiorizar al lector en el tema fiscal con palabras sencillas, describiendo en forma sucinta los antecedentes de los tributos, hasta llegar y describir el sistema impositivo actual mexicano, y de ahí estudiar en forma específica el impuesto que tiene más relevancia por la cantidad que se recauda siendo el Impuesto Sobre la Renta.

  11. CDRH FOIA Electronic Reading Room

    Data.gov (United States)

    U.S. Department of Health & Human Services — The CDRH FOIA electronic reading room contains frequently requested information via the Freedom of Information Act from the Center for Devices and Radiological Health.

  12. What's New in Locker Rooms?

    Science.gov (United States)

    Rittner-Heir, Robbin M.

    2001-01-01

    Discusses athletic facility design and renovation issues that exist because of increasing numbers of female athletes. Outlines renovation issues such as locker room facilities, space for sports equipment, and additional athletic fields. (GR)

  13. Reverberation Radius in Real Rooms

    Directory of Open Access Journals (Sweden)

    M. Mijić

    2010-11-01

    Full Text Available A reverberation radius, also called a critical distance, is an important parameter in sound reproduction. Statistical approach gives a simple formula for its calculation, and some simple methods for its measurement were described in literature. To measure the critical distance in real rooms, a more accurate method is proposed. This paper is concerned with that method. Accuracy of the method was analysed and the results of critical distance measurement in several rooms of different sizes and acoustical characteristics are presented.

  14. Sociology: Clean-energy conservatism

    Science.gov (United States)

    McCright, Aaron M.

    2017-03-01

    US conservatives receive a steady stream of anti-environmental messaging from Republican politicians. However, clean-energy conservatives sending strong counter-messages on energy issues could mobilize moderate conservatives to break away from the dominant right-wing defence of fossil fuels.

  15. Laser cleaning on Roman coins

    Science.gov (United States)

    Drakaki, E.; Karydas, A. G.; Klinkenberg, B.; Kokkoris, M.; Serafetinides, A. A.; Stavrou, E.; Vlastou, R.; Zarkadas, C.

    Ancient metal objects react with moisture and environmental chemicals to form various corrosion products. Because of the unique character and high value of such objects, any cleaning procedure should guarantee minimum destructiveness. The most common treatment used is mechanical stripping, in which it is difficult to avoid surface damage when employed. Lasers are currently being tested for a wide range of conservation applications. Since they are highly controllable and can be selectively applied, lasers can be used to achieve more effective and safer cleaning of archaeological artifacts and protect their surface details. The basic criterion that motivated us to use lasers to clean Roman coins was the requirement of pulsed emission, in order to minimize heat-induced damages. In fact, the laser interaction with the coins has to be short enough, to produce a fast removal of the encrustation, avoiding heat conduction into the substrate. The cleaning effects of three lasers operating at different wavelengths, namely a TEA CO2 laser emitting at 10.6 μm, an Er:YAG laser at 2.94 μm, and a 2ω-Nd:YAG laser at 532 nm have been compared on corroded Romans coins and various atomic and nuclear techniques have also been applied to evaluate the efficiency of the applied procedure.

  16. Cleaning Validation of Fermentation Tanks

    DEFF Research Database (Denmark)

    Salo, Satu; Friis, Alan; Wirtanen, Gun

    2008-01-01

    Reliable test methods for checking cleanliness are needed to evaluate and validate the cleaning process of fermentation tanks. Pilot scale tanks were used to test the applicability of various methods for this purpose. The methods found to be suitable for validation of the clenlinees were visula o...

  17. Clean coal initiatives in Indiana

    Science.gov (United States)

    Bowen, B.H.; Irwin, M.W.; Sparrow, F.T.; Mastalerz, Maria; Yu, Z.; Kramer, R.A.

    2007-01-01

    Purpose - Indiana is listed among the top ten coal states in the USA and annually mines about 35 million short tons (million tons) of coal from the vast reserves of the US Midwest Illinois Coal Basin. The implementation and commercialization of clean coal technologies is important to the economy of the state and has a significant role in the state's energy plan for increasing the use of the state's natural resources. Coal is a substantial Indiana energy resource and also has stable and relatively low costs, compared with the increasing costs of other major fuels. This indigenous energy source enables the promotion of energy independence. The purpose of this paper is to outline the significance of clean coal projects for achieving this objective. Design/methodology/approach - The paper outlines the clean coal initiatives being taken in Indiana and the research carried out at the Indiana Center for Coal Technology Research. Findings - Clean coal power generation and coal for transportation fuels (coal-to-liquids - CTL) are two major topics being investigated in Indiana. Coking coal, data compilation of the bituminous coal qualities within the Indiana coal beds, reducing dependence on coal imports, and provision of an emissions free environment are important topics to state legislators. Originality/value - Lessons learnt from these projects will be of value to other states and countries.

  18. Wanted: Clean Coal Burning Technology

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    China is intent on developing clean coal burning technology, an objective it can achieve through installing desulfurization facilities at coal-burning power plants that will control SO2 emissions and environmental pollution. According to kuo Yi, deputy director general of the Department of Science and Technology of the State Environmental Protection Agency, China is a major coal-buming country:

  19. Pollute first, clean up later?

    NARCIS (Netherlands)

    Azadi, Hossein; Verheijke, Gijs; Witlox, Frank

    2011-01-01

    There is a growing concern with regard to sustainability in emerging economies like China. The Chinese growth is characterized by a strategy which is known as "pollute first, clean up later". Here we show that based on this strategy, the pollution alarm can often be postponed by a tremendous economi

  20. Partnership for a Clean Future

    Institute of Scientific and Technical Information of China (English)

    WANG HAIRONG

    2010-01-01

    @@ Having lived in China for almost three decades,Sabina Brady is a de facto China hand.Currently,she is the cxecutive director of the U.S.-China Energy Cooperation Program (ECP),a nonprofit organization that engages in market development and promotion of clean energy within the framework of China-U.S.bilateral government commitments on the environrnent and energy.

  1. Teaming up for Clean Energy

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    On October 22, the China Institute of Strategy and Management and the U.S. Brookings Institution jointly held the China-U.S. Strategic Forum on Clean Energy Cooperation. At the opening session of the forum, Zheng Bijian, Chairman of the China Institute of Strategy and Management, gave a keynote speech. Edited excerpts follow:

  2. Cleaning the Diesel Engine Emissions

    DEFF Research Database (Denmark)

    Christensen, Thomas Budde

    This paper examines how technologies for cleaning of diesel emission from road vehicles can be supported by facilitating a technology push in the Danish automotive emission control industry. The European commission is at present preparing legislation for the euro 5 emission standard (to be enforc...

  3. Benchmarks of Global Clean Energy Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Sandor, Debra [National Renewable Energy Lab. (NREL), Golden, CO (United States); Chung, Donald [National Renewable Energy Lab. (NREL), Golden, CO (United States); Keyser, David [National Renewable Energy Lab. (NREL), Golden, CO (United States); Mann, Margaret [National Renewable Energy Lab. (NREL), Golden, CO (United States); Engel-Cox, Jill [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2017-01-01

    The Clean Energy Manufacturing Analysis Center (CEMAC), sponsored by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), provides objective analysis and up-to-date data on global supply chains and manufacturing of clean energy technologies. Benchmarks of Global Clean Energy Manufacturing sheds light on several fundamental questions about the global clean technology manufacturing enterprise: How does clean energy technology manufacturing impact national economies? What are the economic opportunities across the manufacturing supply chain? What are the global dynamics of clean energy technology manufacturing?

  4. Clean Energy Infrastructure Educational Initiative

    Energy Technology Data Exchange (ETDEWEB)

    Hallinan, Kevin; Menart, James; Gilbert, Robert

    2012-08-31

    The Clean Energy Infrastructure Educational Initiative represents a collaborative effort by the University of Dayton, Wright State University and Sinclair Community College. This effort above all aimed to establish energy related programs at each of the universities while also providing outreach to the local, state-wide, and national communities. At the University of Dayton, the grant has aimed at: solidfying a newly created Master's program in Renewable and Clean Energy; helping to establish and staff a regional sustainability organization for SW Ohio. As well, as the prime grantee, the University of Dayton was responsible for insuring curricular sharing between WSU and the University of Dayton. Finally, the grant, through its support of graduate students, and through cooperation with the largest utilities in SW Ohio enabled a region-wide evaluation of over 10,000 commercial building buildings in order to identify the priority buildings in the region for energy reduction. In each, the grant has achieved success. The main focus of Wright State was to continue the development of graduate education in renewable and clean energy. Wright State has done this in a number of ways. First and foremost this was done by continuing the development of the new Renewable and Clean Energy Master's Degree program at Wright State . Development tasks included: continuing development of courses for the Renewable and Clean Energy Master's Degree, increasing the student enrollment, and increasing renewable and clean energy research work. The grant has enabled development and/or improvement of 7 courses. Collectively, the University of Dayton and WSU offer perhaps the most comprehensive list of courses in the renewable and clean energy area in the country. Because of this development, enrollment at WSU has increased from 4 students to 23. Secondly, the grant has helped to support student research aimed in the renewable and clean energy program. The grant helped to solidify

  5. La reforma del sistema electoral chileno

    Directory of Open Access Journals (Sweden)

    Mariela Rubano Lapasta

    2007-01-01

    Full Text Available La modificación del sistema electoral público chileno se ha transformado nuevamente en tema de debate público, después de la Reforma Constitucional de 2005. El Gobierno ha propuesto reformar el sistema electoral, sustituirlo por otro que permita a las minorías tener representación en el Congreso. Se abordan brevemente los sistemas electorales en el derecho comparado, en especial el caso chileno, evaluando las ventajas y desventajas del sistema electoral nacional. Se propone recurrir al mecanismo de primarias a fin de elegir a los candidatos. Se concluye que no hay ningún sistema ideal, importa más las características del sistema político y no tanto el método electoral con el cual se eligen a los representantes.

  6. Modelo de sistemas tutores inteligentes multiagente

    OpenAIRE

    Ferrer, Alejandro; Vallejos, Félix Anibal; Jiménez Rey, Elizabeth Miriam; Grossi, María Delia; Servetto, Arturo Carlos; Perichinsky, Gregorio

    2006-01-01

    Se presenta una línea de investigación del Proyecto de la Facultad de Ingeniería de la Universidad de Buenos Aires I015: Manufactura Integrada por Computadora en Sistemas Complejos para el Desarrollo Social, Industrial y de Tecnología. Se introduce conceptos básicos de los campos en los que incursiona esta línea de investigación: Sistemas Tutores Inteligentes (STI) y Sistemas Multiagentes (SMA). Se describe los aspectos esenciales que se deben considerar en el modelado de un sistema ...

  7. Clean Cities Now Vol. 17, No. 1

    Energy Technology Data Exchange (ETDEWEB)

    None

    2013-05-24

    Biannual newsletter for the U.S. Department of Energy's Clean Cities initiative. The newsletter includes feature stories on advanced vehicle deployment, idle reduction, and articles on Clean Cities coalition successes across the country.

  8. Clean Cities Now Vol. 16.1

    Energy Technology Data Exchange (ETDEWEB)

    None

    2012-05-01

    Biannual newsletter for the U.S. Department of Energy's Clean Cities initiative. The newsletter includes feature stories on advanced vehicle deployment, idle reduction, and articles on Clean Cities coalition successes across the country.

  9. Following ergonomics guidelines decreases physical and cardiovascular workload during cleaning tasks

    DEFF Research Database (Denmark)

    Samani, Afshin; Søgaard, Karen; Holtermann, Andreas

    2012-01-01

    The aim was to investigate the effect of ergonomics guidelines on muscular activity, postural and cardiovascular load during cleaning. Eighteen cleaners performed 10 min of cleaning tasks in two locations; three min in a laboratory and seven min in a lecture room. All participants performed......, and the cardiovascular load was estimated by electrocardiogram. Ergonomics sessions resulted in lower muscular load, a more complex pattern of muscular activity, lower range of motion and angular velocity of the trunk as well as lower cardiovascular load compared with non-ergonomics sessions (p ...

  10. The MiniCLEAN Experiment

    Science.gov (United States)

    Wang, Jui-Jen (Ryan); Gold, Michael; Miniclean Collaboration

    2017-01-01

    The MiniCLEAN (Cryogenic Low-Energy Astrophysics with Noble liquid) dark matter experiment will exploit a single-phase liquid argon detector instrumented with 92 photomultiplier tubes placed in the cryogen with 4- π coverage of a 500 kg (150 kg) target (fiducial) mass. The detector design strategy emphasizes scalability to target masses of order 10 tons or more. It is designed also for a liquid neon target that allows for an independent verification of signal and background and a test of the expected dependence of the WIMP-nucleus interaction rate. For MiniCLEAN, PMT stability and calibration are essential. The Light-Emitting Diode (LED) based light injection system provide single photon for the calibration which can be performed in near real-time, providing a continuous monitor on the condition of the detector. This talk will summarize the status of detector and upcoming commissioning at SNOLAB in Sudbury, Canada.

  11. Clean Energy Solutions Center Services (Arabic Translation)

    Energy Technology Data Exchange (ETDEWEB)

    2016-03-01

    This is an Arabic translation of the Clean Energy Solutions Center fact sheet. The Solutions Center offers no-cost expert policy assistance, webinars and training forums, clean energy policy reports, data, and tools provided in partnership with more than 35 leading international and regional clean energy organizations.

  12. 7 CFR 29.6007 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 29.6007 Section 29.6007 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... INSPECTION Standards Definitions § 29.6007 Clean. Tobacco is described as clean when it contains only...

  13. Clean Energy Manufacturing Analysis Center (CEMAC)

    Energy Technology Data Exchange (ETDEWEB)

    2015-12-01

    The U.S. Department of Energy's Clean Energy Manufacturing Analysis Center (CEMAC) provides objective analysis and up-to-date data on global supply chains and manufacturing of clean energy technologies. Policymakers and industry leaders seek CEMAC insights to inform choices to promote economic growth and the transition to a clean energy economy.

  14. Air cleaning using regenerative silica gel wheel

    DEFF Research Database (Denmark)

    Fang, Lei

    2011-01-01

    This paper discussed the necessity of indoor air cleaning and the state of the art information on gas-phase air cleaning technology. The performance and problems of oxidation and sorption air cleaning technology were summarized and analysed based on the literature studies. Eventually, based on an...

  15. Clean Energy Solutions Center Services (Chinese Translation)

    Energy Technology Data Exchange (ETDEWEB)

    2016-03-01

    This is a Mandarin translation of the Clean Energy Solutions Center fact sheet. The Solutions Center offers no-cost expert policy assistance, webinars and training forums, clean energy policy reports, data, and tools provided in partnership with more than 35 leading international and regional clean energy organizations.

  16. Clean Energy Solutions Center Services (Vietnamese Translation)

    Energy Technology Data Exchange (ETDEWEB)

    2016-03-01

    This is a Vietnamese translation of the Clean Energy Solutions Center fact sheet. The Solutions Center offers no-cost expert policy assistance, webinars and training forums, clean energy policy reports, data, and tools provided in partnership with more than 35 leading international and regional clean energy organizations.

  17. Clean Cities Now, Vol. 18, No. 2

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-01-19

    This is version 18.2 of Clean Cities Now, the official biannual newsletter of the Clean Cities program. Clean Cities is an initiative designed to reduce petroleum consumption in the transportation sector by advancing the use of alternative and renewable fuels, fuel economy improvements, idle-reduction measures, and new technologies, as they emerge.

  18. Clean Energy Solutions Center Services (Portuguese Translation)

    Energy Technology Data Exchange (ETDEWEB)

    2016-03-01

    This is a Portuguese translation of the Clean Energy Solutions Center Services fact sheet. The Solutions Center offers no-cost expert policy assistance, webinars and training forums, clean energy policy reports, data, and tools provided in partnership with more than 35 leading international and regional clean energy organizations.

  19. Clean Energy Solutions Center Services (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2014-04-01

    The Clean Energy Solutions Center (Solutions Center) helps governments, advisors and analysts create policies and programs that advance the deployment of clean energy technologies. The Solutions Center partners with international organizations to provide online training, expert assistance, and technical resources on clean energy policy.

  20. Clean Energy Solutions Center Services (French Translation)

    Energy Technology Data Exchange (ETDEWEB)

    2016-03-01

    This is a French translation of the Clean Energy Solutions Center fact sheet. The Solutions Center offers no-cost expert policy assistance, webinars and training forums, clean energy policy reports, data, and tools provided in partnership with more than 35 leading international and regional clean energy organizations.

  1. 48 CFR 36.512 - Cleaning up.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Cleaning up. 36.512... CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 36.512 Cleaning up. The contracting officer shall insert the clause at 52.236-12, Cleaning Up, in solicitations and contracts when a...

  2. 7 CFR 51.606 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.606 Section 51.606 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Consumer Standards for Celery Stalks Definitions § 51.606 Clean. Clean means that the stalk is...

  3. 7 CFR 51.1553 - Fairly clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Fairly clean. 51.1553 Section 51.1553 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Potatoes 1 Definitions § 51.1553 Fairly clean. Fairly clean means that at least...

  4. 7 CFR 51.1581 - Fairly clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Fairly clean. 51.1581 Section 51.1581 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Consumer Standards for Potatoes Definitions § 51.1581 Fairly clean. Fairly clean means that from...

  5. 7 CFR 51.1316 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.1316 Section 51.1316 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Winter Pears 1 Definitions § 51.1316 Clean. Clean means free from excessive dirt, dust,...

  6. 7 CFR 29.2256 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 29.2256 Section 29.2256 Agriculture Regulations... INSPECTION Standards Official Standard Grades for Virginia Fire-Cured Tobacco (u.s. Type 21) § 29.2256 Clean. Tobacco is described as clean when it contains only a normal amount of sand or soil particles....

  7. 7 CFR 51.1552 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.1552 Section 51.1552 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Potatoes 1 Definitions § 51.1552 Clean. Clean means that at least 90 percent of...

  8. 7 CFR 29.3507 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 29.3507 Section 29.3507 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Type 95) § 29.3507 Clean. Tobacco is described as clean when it contains only a normal amount of...

  9. 7 CFR 51.2288 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.2288 Section 51.2288 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Shelled English Walnuts (Juglans Regia) Definitions § 51.2288 Clean. Clean means that...

  10. 7 CFR 51.1867 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.1867 Section 51.1867 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Fresh Tomatoes 1 Definitions § 51.1867 Clean. Clean means that the tomato is practically...

  11. 7 CFR 51.2965 - Fairly clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Fairly clean. 51.2965 Section 51.2965 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Walnuts in the Shell Definitions § 51.2965 Fairly clean. Fairly clean means...

  12. 7 CFR 51.2654 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.2654 Section 51.2654 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades for Sweet Cherries 1 Definitions § 51.2654 Clean. Clean means that the cherries...

  13. 7 CFR 51.2083 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.2083 Section 51.2083 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Almonds in the Shell Definitions § 51.2083 Clean. Clean means that the shell...

  14. 7 CFR 29.1004 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 29.1004 Section 29.1004 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Type 92) § 29.1004 Clean. Tobacco is described as clean when it contains only a normal amount of...

  15. 7 CFR 51.2118 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.2118 Section 51.2118 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Shelled Almonds Definitions § 51.2118 Clean. Clean means that the kernel...

  16. 7 CFR 29.3009 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 29.3009 Section 29.3009 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Clean. Tobacco is described as clean when it contains only a normal amount of sand or soil...

  17. 7 CFR 51.3061 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.3061 Section 51.3061 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Florida Avocados Definitions § 51.3061 Clean. Clean means that the avocado is practically...

  18. 7 CFR 51.1275 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.1275 Section 51.1275 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Summer and Fall Pears 1 Definitions § 51.1275 Clean. Clean means free from excessive...

  19. 7 CFR 51.570 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.570 Section 51.570 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Celery Definitions § 51.570 Clean. Clean means that the stalk is practically free from dirt...

  20. Clean Air Act. Revision 5

    Energy Technology Data Exchange (ETDEWEB)

    1994-02-15

    This Reference Book contains a current copy of the Clean Air Act, as amended, and those regulations that implement the statute and appear to be most relevant to DOE activities. The document is provided to DOE and contractor staff for informational purposes only and should not be interpreted as legal guidance. This Reference Book has been completely revised and is current through February 15, 1994.

  1. Waterless Clothes-Cleaning Machine

    Science.gov (United States)

    Johnson, Glenn; Ganske, Shane

    2013-01-01

    A waterless clothes-cleaning machine has been developed that removes loose particulates and deodorizes dirty laundry with regenerative chemical processes to make the clothes more comfortable to wear and have a fresher smell. This system was initially developed for use in zero-g, but could be altered for 1-g environments where water or other re sources are scarce. Some of these processes include, but are not limited to, airflow, filtration, ozone generation, heat, ultraviolet light, and photocatalytic titanium oxide.

  2. Battery Technology Stores Clean Energy

    Science.gov (United States)

    2008-01-01

    Headquartered in Fremont, California, Deeya Energy Inc. is now bringing its flow batteries to commercial customers around the world after working with former Marshall Space Flight Center scientist, Lawrence Thaller. Deeya's liquid-cell batteries have higher power capability than Thaller's original design, are less expensive than lead-acid batteries, are a clean energy alternative, and are 10 to 20 times less expensive than nickel-metal hydride batteries, lithium-ion batteries, and fuel cell options.

  3. Combining a Novel Computer Vision Sensor with a Cleaning Robot to Achieve Autonomous Pig House Cleaning

    DEFF Research Database (Denmark)

    Andersen, Nils Axel; Braithwaite, Ian David; Blanke, Mogens

    2005-01-01

    Cleaning of livestock buildings is the single most health-threatening task in the agricultural industry and a transition to robot-based cleaning would be instrumental to improving working conditions for employees. Present cleaning robots fall short on cleanness quality, as they cannot perform...

  4. Exposure of German residents to ethylene and propylene glycol ethers in general and after cleaning scenarios.

    Science.gov (United States)

    Fromme, H; Nitschke, L; Boehmer, S; Kiranoglu, M; Göen, T

    2013-03-01

    Glycol ethers are a class of semi-volatile substances used as solvents in a variety of consumer products like cleaning agents, paints, cosmetics as well as chemical intermediates. We determined 11 metabolites of ethylene and propylene glycol ethers in 44 urine samples of German residents (background level study) and in urine samples of individuals after exposure to glycol ethers during cleaning activities (exposure study). In the study on the background exposure, methoxyacetic acid and phenoxyacetic acid (PhAA) could be detected in each urine sample with median (95th percentile) values of 0.11 mgL(-1) (0.30 mgL(-1)) and 0.80 mgL(-1) (23.6 mgL(-1)), respectively. The other metabolites were found in a limited number of samples or in none. In the exposure study, 5-8 rooms were cleaned with a cleaner containing ethylene glycol monobutyl ether (EGBE), propylene glycol monobutyl ether (PGBE), or ethylene glycol monopropyl ether (EGPE). During cleaning the mean levels in the indoor air were 7.5 mgm(-3) (EGBE), 3.0 mgm(-3) (PGBE), and 3.3 mgm(-3) (EGPE), respectively. The related metabolite levels analysed in the urine of the residents of the rooms at the day of cleaning were 2.4 mgL(-1) for butoxyacetic acid, 0.06 mgL(-1) for 2-butoxypropionic acid, and 2.3 mgL(-1) for n-propoxyacetic acid. Overall, our study indicates that the exposure of the population to glycol ethers is generally low, with the exception of PhAA. Moreover, the results of the cleaning scenarios demonstrate that the use of indoor cleaning agents containing glycol ethers can lead to a detectable internal exposure of residents.

  5. Clean

    Institute of Scientific and Technical Information of China (English)

    何伟文

    2005-01-01

    Core competitiveness is a notion familiar to most managers with an MBA degree, These days, this is what is taught at renowned business schools and colleges. And in the real world,large and small enterprises are increasingly following this course of action, To concentrate on one or two single lines of business in most cases makes sense and boosts profit, There are, however,

  6. 39 CFR 3004.12 - Reading room.

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Reading room. 3004.12 Section 3004.12 Postal... Reading room. (a) The Commission maintains a public reading room at its offices (901 New York Avenue, NW., Suite 200, Washington, DC 20268-0001) and an electronic reading room at http://www.prc.gov. The...

  7. 32 CFR 296.6 - Reading room.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Reading room. 296.6 Section 296.6 National... Reading room. (a) The NRO shall provide a reading room equipped with hard copy and electronic records as required in the “Electronic Freedom of Information Act Amendments of 1996”. The NRO Reading Room is...

  8. Cleaning technics of cleaning robots%清洗机器人的清洗工艺

    Institute of Scientific and Technical Information of China (English)

    何勇强; 周利坤

    2012-01-01

    The cleaning works and cleaning methods of cleaning robots were systematically summarized. The cleaning robots' cleaning technics were illustrated and analyzed. It also specially proposed the idea of oil tank cleaning robot's cleaning technics and process.%对清洗机器人的清洗作业和清洗方法进行了系统分类概述,举例综合分析了清洗机器人的清洗工艺,特别提出了油罐清洗机器人的清洗工艺流程设想。

  9. Clean Assembly of Genesis Collector Canister for Flight: Lessons for Planetary Sample Return

    Science.gov (United States)

    Allton, J. H.; Stansbery, E. K.; Allen, C. C.; Warren, J. L.; Schwartz, C. M.

    2007-01-01

    Measurement of solar composition in the Genesis collectors requires not only high sensitivity but very low blanks; thus, very strict collector contamination minimization was required beginning with mission planning and continuing through hardware design, fabrication, assembly and testing. Genesis started with clean collectors and kept them clean inside of a canister. The mounting hardware and container for the clean collectors were designed to be cleanable, with access to all surfaces for cleaning. Major structural components were made of aluminum and cleaned with megasonically energized ultrapure water (UPW). The UPW purity was >18 M resistivity. Although aluminum is relatively difficult to clean, the Genesis protocol achieved level 25 and level 50 cleanliness on large structural parts; however, the experience suggests that surface treatments may be helpful on future missions. All cleaning was performed in an ISO Class 4 (Class 10) cleanroom immediately adjacent to an ISO Class 4 assembly room; thus, no plastic packaging was required for transport. Persons assembling the canister were totally enclosed in cleanroom suits with face shield and HEPA filter exhaust from suit. Interior canister materials, including fasteners, were installed, untouched by gloves, using tweezers and other stainless steel tools. Sealants/lubricants were not exposed inside the canister, but vented to the exterior and applied in extremely small amounts using special tools. The canister was closed in ISO Class 4, not to be opened until on station at Earth-Sun L1. Throughout the cleaning and assembly, coupons of reference materials that were cleaned at the same time as the flight hardware were archived for future reference and blanks. Likewise reference collectors were archived. Post-mission analysis of collectors has made use of these archived reference materials.

  10. A Simple Survey Concerning the Approach of the Cleaning Companies to Mercury Spills

    Directory of Open Access Journals (Sweden)

    Derya Camur

    2010-12-01

    Full Text Available AIM: The aim of this study is to determine the knowledge of the cleaning companies in case of mercury spills at home. METHOD: Thirty-two cleaning companies were interviewed by a telephone survey. Two standard questions were asked to an authorized people of the company. “A manometer is broken on the carpet. The mercury in the manometer is all spilled on the wall to wall carpet in the living room. We want our carpet to be cleaned. Could you do it? How can be the carpet cleaned? Have you ever cleaned a carpet on which mercury was spilled?” It is stated that mercury spillage has happened just a very short time ago and nothing have been done after that. RESULTS: Fifty percent of the 32 companies work in Istanbul, 37.5% in Ankara and 22.5% in Izmir. Three companies from Ankara, five from Istanbul, one from Izmir stated that they have encountered with mercury spillage before. Three of the companies who have stated that the have not encountered with mercury spillage before, asked “What is mercury?” and one of them asked whether “Mercury is a communicable disease, isn’t it?”. Twenty-two of the interviewed cleaning companies stated that they could clean the carpet with stain remover and three of them offered vacuuming, one washing the carpet with carpet shampoo, one person cleaning the stain by wiping with alcohol/ethyl alcohol. Five of the companies stated that they could not clean the stain and one of them he has advised throwing the carpet away. CONCLUSION: In many developing countries there is no responsible association or institution for mercury spills. Such simple surveys may be very important in determining training and gaps concerning public health problems. [TAF Prev Med Bull 2010; 9(6.000: 557-562

  11. Sistemas residenciales: conceptos y aplicaciones

    Directory of Open Access Journals (Sweden)

    Franu00E7oise Dureau

    2004-01-01

    Full Text Available Luego de volver sobre los orígenes de la noción de sistema residencial familiar en la investigación sobre África y América Latina, el artículo expone las técnicas de recolección desarrolladas en dos encuestas colombianas. El análisis de la morfología espacial de los sistemas residenciales familiares de los Bogotanos pone en evidencia las prácticas pluri-locales de la población, las movilidades que las subtienden y la importancia de la localización en las escogencias residenciales. Con este enfoque, el análisis de las prácticas residenciales se desplaza de la vivienda hacia el acceso a los recursos urbanos localizados: los relacionados con el entorno natural, los producidos por los actores políticos y económicos, pero también aquellos construidos por las prácticas sociales de los habitantes. De esta manera, lo que se propone aquí es una renovación de la lectura de las dinámicas espaciales en términos de territorios y un reconocimiento del habitante como actor pleno de la producción de nuevas configuraciones urbanas.

  12. Los Sistemas tecnológicos Concretos

    OpenAIRE

    2011-01-01

    Usando un enfoque sistémico, se estudian cierto tipo de subsistemas sociales que caracterizan a la sociedad contemporánea. Específicamente se definen aquellos tecnosistemas que realizan el diseño y la ejecución de artefactos y/o sistemas artificiales, los que se denominarán sistemas tecnológicos.

  13. Anti-airborne-molecular-contamination technology in clean rooms; Kukichu no kagaku osen no teigen taisaku

    Energy Technology Data Exchange (ETDEWEB)

    Sakata, S.; Sato, K.; Takahashi, H.; Okada, T.

    1998-07-31

    As for, countermeasures for chemical contaminants in a cleanroom air, the technical development has progressed earnestly since T top phenomenon of photo-amplified resist with basic gas due to atmosphere was pointed out in 1991 by MacDonald. Airborne-Molecular-Contamination (AMC) is classified into acids, bases, condensables, and dopants. According to SEMATECH no 95052812A-TR, condensable are defined as silicones or hydrocarbons with a boiling point greater than or equal to 150 degC. Water-soluble gaseous contaminants in outdoor air coming into cleanrooms are removed with a water spray equipment. AMC originated from circulating air in cleanrooms are prevented using various chemical filters. Conventional chemical filters made of activated charcoal, however, have several defects. Ceramic chemical filters developed by the authors are nonflammable, and consist of inorganic materials without any volatile organic matters and without alkaline metal and so on, and they have high removal efficiencies of condensable. 15 refs., 12 figs., 3 tabs.

  14. Thermal plumes in ventilated rooms

    DEFF Research Database (Denmark)

    Kofoed, Peter; Nielsen, Peter V.

    1990-01-01

    The design of a displacement ventilation system involves determination of the flow rate in the thermal plumes. The flow rate in the plumes and the vertical temperature gradient influence each other, and they are influenced by many factors. This paper shows some descriptions of these effects. Free...... to be the only possible approach to obtain the volume flow in: thermal plumes in ventilated rooms....

  15. ISOLDE target zone control room

    CERN Multimedia

    2016-01-01

    Operating the ISOLDE target handling robots from the dedicated control room in building 197. Monitors showing the movements of the robots (GPS in this case) in the target zone. The footage shows the actual operation by the operator as well as the different equipment such as camera electronics, camera motor controls, camera monitors and Kuka robot controls touch panel.

  16. New Radiation Protection training room

    CERN Multimedia

    HSE Unit

    2013-01-01

    From now on, the theory and practical components of the Radiation Protection training, developed by the RP Group and offered by the HSE Unit’s Safety Training team to people working in a Controlled Radiation Area, will take place in a dedicated teaching room, designed specifically for this kind of training.   The new room is in the Safety Training Centre on the Prévessin site and has been open since 16 October. It has an adjoining workshop that, like the room itself, can accommodate up to 12 people. It is also equipped with an interactive board as well as instruments and detectors to test for ionising radiation. This room is located near the recently inaugurated LHC tunnel mock-up where practical training exercises can be carried out in conditions almost identical to those in the real tunnel. To consult the safety training catalogue and/or sign up for Radiation Protection training, please go to: https://cta.cern.ch For further information, please contact the Safety Trainin...

  17. Locker Rooms: The Durable Design.

    Science.gov (United States)

    Viklund, Roy; Coons, John

    1997-01-01

    Offers advice on heavy-use locker-room design that provides easier maintenance and vandal resistance. Design features and materials used for flooring, ceilings, and walls are addressed as are built-in systems and equipment, toilet and shower fixtures and partitions, lockers, and mechanical and electrical systems. (GR)

  18. Room-Maid in Hotel

    Science.gov (United States)

    Hotel and Catering Industry Training Board, Wembley (England).

    This syllabus is intended for the use of training personnel in drawing up training programs for room-maids in hotels. Its main objective is to produce fully trained maids, thereby maintaining and raising standards. The syllabus is divided into three sections: Introducing to Housekeeping, Basic Tasks Performed by the Majority of Housekeeping…

  19. Supersonic Gas-Liquid Cleaning System

    Science.gov (United States)

    Kinney, Frank

    1996-01-01

    The Supersonic Gas-Liquid Cleaning System Research Project consisted mainly of a feasibility study, including theoretical and engineering analysis, of a proof-of-concept prototype of this particular cleaning system developed by NASA-KSC. The cleaning system utilizes gas-liquid supersonic nozzles to generate high impingement velocities at the surface of the device to be cleaned. The cleaning fluid being accelerated to these high velocities may consist of any solvent or liquid, including water. Compressed air or any inert gas is used to provide the conveying medium for the liquid, as well as substantially reduce the total amount of liquid needed to perform adequate surface cleaning and cleanliness verification. This type of aqueous cleaning system is considered to be an excellent way of conducting cleaning and cleanliness verification operations as replacements for the use of CFC 113 which must be discontinued by 1995. To utilize this particular cleaning system in various cleaning applications for both the Space Program and the commercial market, it is essential that the cleaning system, especially the supersonic nozzle, be characterized for such applications. This characterization consisted of performing theoretical and engineering analysis, identifying desirable modifications/extensions to the basic concept, evaluating effects of variations in operating parameters, and optimizing hardware design for specific applications.

  20. IDEA Clean Energy Application Center

    Energy Technology Data Exchange (ETDEWEB)

    Thornton, Robert

    2013-09-30

    The DOE Clean Energy Application Centers were launched with a goal of focusing on important aspects of our nation’s energy supply including Efficiency, Reliability and Resiliency. Clean Energy solutions based on Combined Heat & Power (CHP), District Energy and Waste Heat Recovery are at the core of ensuring a reliable and efficient energy infrastructure for campuses, communities, and industry and public enterprises across the country. IDEA members which include colleges and universities, hospitals, airports, downtown utilities as well as manufacturers, suppliers and service providers have long-standing expertise in the planning, design, construction and operations of Clean Energy systems. They represent an established base of successful projects and systems at scale and serve important and critical energy loads. They also offer experience, lessons learned and best practices which are of immense value to the sustained growth of the Clean Energy sector. IDEA has been able to leverage the funds from the project award to raise the visibility, improve the understanding and increase deployment CHP, District Energy and Waste Heat Recovery solutions across the regions of our nation, in collaboration with the regional CEAC’s. On August 30, 2012, President Obama signed an Executive Order to accelerate investments in industrial energy efficiency (EE), including CHP and set a national goal of 40 GW of new CHP installation over the next decade IDEA is pleased to have been able to support this Executive Order in a variety of ways including raising awareness of the goal through educational workshops and Conferences and recognizing the installation of large scale CHP and district energy systems A supporting key area of collaboration has involved IDEA providing technical assistance on District Energy/CHP project screenings and feasibility to the CEAC’s for multi building, multi-use projects. The award was instrumental in the development of a first-order screening

  1. How to achieve ultra-clean detectors and cryostats at astronomical instruments: measures to avoid contamination and dust on CCD detectors

    Science.gov (United States)

    Deiries, S.; Lizon, Jean Louis; Iwert, Olaf

    2016-07-01

    ESO developed in its detector laboratory a complete routine to achieve ultra-clean detectors with lasting effect with special materials and surface treatments. All components of the detector cryostats are washed in ultrasonic baths, then baked to its maximum temperature in vacuum ovens. As final step plasma cleaning is used of individual and integrated systems. All handlings and the complete integrations are done in the clean room before its integration the detectors are dust cleaned with new methods e.g.: vapor cleaning. At observatory operation the detectors can be monitored by new methods (e.g.: pseudo FF dust evaluation, UV QE test) as a long term contamination control. The always unavoidable moisture in the ready installed instrument can even be cured by UV flashing in dry synthetic air without removing anything from the telescope. Such ESO provides ultra-clean detectors and instruments, which also do not degrade even after years of operation at their telescope sites.

  2. The vascular hybrid room--operating room of the future.

    Science.gov (United States)

    Hudorović, Narcis; Rogan, Suncica Andreja; Lovricević, Ivo; Zovak, Mario; Schmidt, Sasa

    2010-09-01

    The last two decades have seen a paradigm shift in the treatment of vascular related diseases from once traditional open surgical repairs to the entire vascular tree being amenable to percutaneous interventions. Neither the classic operating room nor the conventional angiography suite is optimal for both open surgery and endovascular procedures. Important issues for the vascular hybrid operating room include quality of the imaging equipment, radiation burden, ease of use of the equipment, need for specially trained personnel, ergonomics, ability to perform both open and percutaneous procedures, sterile environments, as well as quality and efficiency of patient care. The most important feature of working in a dedicated hybrid vascular suite should be the ability to attain best treatment of vascular patients. Whether the interventional radiologist or the vascular surgeon uses the facilities is of less importance. Establishment of an endovascular operating room suite has the benefit of a sterile environment, and the possibility of performing hybrid procedures and conversions when necessary. Moreover, angiography immediately before treatment gives contemporary anatomical information, and after treatment provides quality control. Consequently, better quality and service can be provided to the individual patient. These changes in the treatment of vascular disease require that a new type of vascular specialist, named 'vascular hybrid surgeon', trained to perform both endovascular and open surgical procedures in this highly complex patient group.

  3. Cleaning insertions and collimation challenges

    CERN Document Server

    Redaelli, S; Bertarelli, A; Bruce, R; Jowett, J M; Lechner, A; Losito, R

    2015-01-01

    High-performance collimation systems are essential for operating efficiently modern hadron machine with large beam intensities. In particular, at the LHC the collimation system ensures a clean disposal of beam halos in the superconducting environment. The challenges of the HL-LHC study pose various demanding requests for beam collimation. In this paper we review the present collimation system and its performance during the LHC Run 1 in 2010–2013. Various collimation solutions under study to address the HL-LHC requirements are then reviewed, identifying the main upgrade baseline and pointing out advanced collimation concept for further enhancement of the performance.

  4. Cleaning Massive Sonar Point Clouds

    DEFF Research Database (Denmark)

    Arge, Lars Allan; Larsen, Kasper Green; Mølhave, Thomas;

    2010-01-01

    We consider the problem of automatically cleaning massive sonar data point clouds, that is, the problem of automatically removing noisy points that for example appear as a result of scans of (shoals of) fish, multiple reflections, scanner self-reflections, refraction in gas bubbles, and so on. We...... describe a new algorithm that avoids the problems of previous local-neighbourhood based algorithms. Our algorithm is theoretically I/O-efficient, that is, it is capable of efficiently processing massive sonar point clouds that do not fit in internal memory but must reside on disk. The algorithm is also...

  5. Sistema Distribuido de Gran Escala

    Directory of Open Access Journals (Sweden)

    Fco. Javier Luna Rosas

    2006-01-01

    Full Text Available Este artículo propone una nueva forma de balancear la carga dinámicamente combinando un modelo Fuzzy-Logic en conjunto con el algoritmo distribuido Request for Bids (RB, el trabajo es centrado en el modelo Fuzzy-Logic con el propósito de mejorar el balanceo dinámico de carga en un sistema distribuido a gran escala. El modelo Fuzzy-Logic y RB fueron implementados en una arquitectura para balancear la carga bajo el estándar de CORBA y fueron evaluados contra otras estrategias que son bien conocidas en la literatura usando diferentes métricas de carga y mostramos como bajo ciertas condiciones nuestra estrategia obtiene mejores resultados.

  6. Space Brightness Evaluation for a Daylit Room

    Directory of Open Access Journals (Sweden)

    Takashi Maruyama

    2011-05-01

    Full Text Available One of the most important problems for lighting design is how to reduce an electric energy. One way to solve this problem is use of daylight, but little is known how to perceive a brightness of a room illuminated by daylight come in through a window and artificial light. Although the horizontal illuminance increases because of daylight, we would not perceive the room as bright as brightness estimated by the illuminance. The purpose of this study is to measure the space brightness for daylit room and to propose a evaluation method. The experiment was conducted with a couple of miniature office rooms, standard room and test room. Test room has several types of windows and standard room has no window. Subject was asked to evaluate the brightness of the test room relative to the standard room with method of magnitude estimation. It was found that brightness of daylit room did not increase simply with horizontal illuminance. Subject perceived a daylit room darker than a room illuminated only by the artificial light even if horizontal illuminance of these room was same. The effect of daylight on space brightness would vary with the window size and intensity of daylight or artificial light.

  7. Cold water cleaning of brain proteins, biofilm and bone - harnessing an ultrasonically activated stream.

    Science.gov (United States)

    Birkin, P R; Offin, D G; Vian, C J B; Howlin, R P; Dawson, J I; Secker, T J; Hervé, R C; Stoodley, P; Oreffo, R O C; Keevil, C W; Leighton, T G

    2015-08-28

    In the absence of sufficient cleaning of medical instruments, contamination and infection can result in serious consequences for the health sector and remains a significant unmet challenge. In this paper we describe a novel cleaning system reliant on cavitation action created in a free flowing fluid stream where ultrasonic transmission to a surface, through the stream, is achieved using careful design and control of the device architecture, sound field and the materials employed. Cleaning was achieved with purified water at room temperature, moderate fluid flow rates and without the need for chemical additives or the high power consumption associated with conventional strategies. This study illustrates the potential in harnessing an ultrasonically activated stream to remove biological contamination including brain tissue from surgical stainless steel substrates, S. epidermidis biofilms from glass, and fat/soft tissue matter from bone structures with considerable basic and clinical applications.

  8. Appalachian clean coal technology consortium

    Energy Technology Data Exchange (ETDEWEB)

    Kutz, K.; Yoon, Roe-Hoan [Virginia Polytechnic Institute and State Univ., Blacksburg, VA (United States)

    1995-11-01

    The Appalachian Clean Coal Technology Consortium (ACCTC) has been established to help U.S. coal producers, particularly those in the Appalachian region, increase the production of lower-sulfur coal. The cooperative research conducted as part of the consortium activities will help utilities meet the emissions standards established by the 1990 Clean Air Act Amendments, enhance the competitiveness of U.S. coals in the world market, create jobs in economically-depressed coal producing regions, and reduce U.S. dependence on foreign energy supplies. The research activities will be conducted in cooperation with coal companies, equipment manufacturers, and A&E firms working in the Appalachian coal fields. This approach is consistent with President Clinton`s initiative in establishing Regional Technology Alliances to meet regional needs through technology development in cooperation with industry. The consortium activities are complementary to the High-Efficiency Preparation program of the Pittsburgh Energy Technology Center, but are broader in scope as they are inclusive of technology developments for both near-term and long-term applications, technology transfer, and training a highly-skilled work force.

  9. Clean Water for Developing Countries.

    Science.gov (United States)

    Pandit, Aniruddha B; Kumar, Jyoti Kishen

    2015-01-01

    Availability of safe drinking water, a vital natural resource, is still a distant dream to many around the world, especially in developing countries. Increasing human activity and industrialization have led to a wide range of physical, chemical, and biological pollutants entering water bodies and affecting human lives. Efforts to develop efficient, economical, and technologically sound methods to produce clean water for developing countries have increased worldwide. We focus on solar disinfection, filtration, hybrid filtration methods, treatment of harvested rainwater, herbal water disinfection, and arsenic removal technologies. Simple, yet innovative water treatment devices ranging from use of plant xylem as filters, terafilters, and hand pumps to tippy taps designed indigenously are methods mentioned here. By describing the technical aspects of major water disinfection methods relevant for developing countries on medium to small scales and emphasizing their merits, demerits, economics, and scalability, we highlight the current scenario and pave the way for further research and development and scaling up of these processes. This review focuses on clean drinking water, especially for rural populations in developing countries. It describes various water disinfection techniques that are not only economically viable and energy efficient but also employ simple methodologies that are effective in reducing the physical, chemical, and biological pollutants found in drinking water to acceptable limits.

  10. Clean Coal Program Research Activities

    Energy Technology Data Exchange (ETDEWEB)

    Larry Baxter; Eric Eddings; Thomas Fletcher; Kerry Kelly; JoAnn Lighty; Ronald Pugmire; Adel Sarofim; Geoffrey Silcox; Phillip Smith; Jeremy Thornock; Jost Wendt; Kevin Whitty

    2009-03-31

    Although remarkable progress has been made in developing technologies for the clean and efficient utilization of coal, the biggest challenge in the utilization of coal is still the protection of the environment. Specifically, electric utilities face increasingly stringent restriction on the emissions of NO{sub x} and SO{sub x}, new mercury emission standards, and mounting pressure for the mitigation of CO{sub 2} emissions, an environmental challenge that is greater than any they have previously faced. The Utah Clean Coal Program addressed issues related to innovations for existing power plants including retrofit technologies for carbon capture and sequestration (CCS) or green field plants with CCS. The Program focused on the following areas: simulation, mercury control, oxycoal combustion, gasification, sequestration, chemical looping combustion, materials investigations and student research experiences. The goal of this program was to begin to integrate the experimental and simulation activities and to partner with NETL researchers to integrate the Program's results with those at NETL, using simulation as the vehicle for integration and innovation. The investigators also committed to training students in coal utilization technology tuned to the environmental constraints that we face in the future; to this end the Program supported approximately 12 graduate students toward the completion of their graduate degree in addition to numerous undergraduate students. With the increased importance of coal for energy independence, training of graduate and undergraduate students in the development of new technologies is critical.

  11. Scaleable Clean Aluminum Melting Systems

    Energy Technology Data Exchange (ETDEWEB)

    Han, Q.; Das, S.K. (Secat, Inc.)

    2008-02-15

    The project entitled 'Scaleable Clean Aluminum Melting Systems' was a Cooperative Research and Development Agreements (CRADAs) between Oak Ridge National Laboratory (ORNL) and Secat Inc. The three-year project was initially funded for the first year and was then canceled due to funding cuts at the DOE headquarters. The limited funds allowed the research team to visit industrial sites and investigate the status of using immersion heaters for aluminum melting applications. Primary concepts were proposed on the design of furnaces using immersion heaters for melting. The proposed project can continue if the funding agency resumes the funds to this research. The objective of this project was to develop and demonstrate integrated, retrofitable technologies for clean melting systems for aluminum in both the Metal Casting and integrated aluminum processing industries. The scope focused on immersion heating coupled with metal circulation systems that provide significant opportunity for energy savings as well as reduction of melt loss in the form of dross. The project aimed at the development and integration of technologies that would enable significant reduction in the energy consumption and environmental impacts of melting aluminum through substitution of immersion heating for the conventional radiant burner methods used in reverberatory furnaces. Specifically, the program would couple heater improvements with furnace modeling that would enable cost-effective retrofits to a range of existing furnace sizes, reducing the economic barrier to application.

  12. Efficient alpha-Methylenation of Carbonyl Compounds in Ionic Liquids at Room Temperature

    OpenAIRE

    Vale, JA; Zanchetta, DF; Moran, PJS; RODRIGUES, JAR

    2009-01-01

    The application of several 1-butyl-3-methylimidazolium (BMIM) salt ionic liquids as solvent in the alpha-methylenation of carbonyl compounds at room temperature is reported. The ionic liquid [BMIM][NTf(2)] gave a clean reaction in a short time and good yields of several alpha-methylene carbonyl compounds. This ionic liquid was reused without affecting the reaction rates or yields over seven runs.

  13. On the thermodynamic path enabling a room-temperature, laser-assisted graphite to nanodiamond transformation

    OpenAIRE

    Gorrini, F.; M. Cazzanelli; Bazzanella, N.; Edla, R.; Gemmi, M.; Cappello, V; David, J.; Dorigoni, C.; Bifone, A.; Miotello, A.

    2016-01-01

    Nanodiamonds are the subject of active research for their potential applications in nano-magnetometry, quantum optics, bioimaging and water cleaning processes. Here, we present a novel thermodynamic model that describes a graphite-liquid-diamond route for the synthesis of nanodiamonds. Its robustness is proved via the production of nanodiamonds powders at room-temperature and standard atmospheric pressure by pulsed laser ablation of pyrolytic graphite in water. The aqueous environment provide...

  14. Polariton condensates at room temperature

    Science.gov (United States)

    Guillet, Thierry; Brimont, Christelle

    2016-10-01

    We review the recent developments of the polariton physics in microcavities featuring the exciton-photon strong coupling at room temperature, and leading to the achievement of room-temperature polariton condensates. Such cavities embed active layers with robust excitons that present a large binding energy and a large oscillator strength, i.e. wide bandgap inorganic or organic semiconductors, or organic molecules. These various systems are compared, in terms of figures of merit and of common features related to their strong oscillator strength. The various demonstrations of polariton laser are compared, as well as their condensation phase diagrams. The room-temperature operation indeed allows a detailed investigation of the thermodynamic and out-of-equilibrium regimes of the condensation process. The crucial role of the spatial dynamics of the condensate formation is discussed, as well as the debated issue of the mechanism of stimulated relaxation from the reservoir to the condensate under non-resonant excitation. Finally the prospects of polariton devices are presented.

  15. Principales sistemas osmóticos orales

    OpenAIRE

    José Eduardo Hernández Torres; Luz María Melgoza Contreras

    2014-01-01

    Los sistemas de liberación convencionales tienen poco control sobre la liberación del fármaco, lo que resulta en concentraciones plasmáticas variables. Como consecuencia, se han desarrollado sistemas de liberación controlada, como los sistemas osmóticos que han demostrado ser independientes de las condiciones psiológicas del cuerpo (pH, alimento y movimientos peristálticos). La liberación del fármaco puede controlarse conociendo de antemano las propiedades psicoquímicas del fármaco y la forma...

  16. Sistemas de conciliación financiera

    OpenAIRE

    Cerro Campón, Ana

    2011-01-01

    Los sistemas de conciliaciones financieras, son sistemas que se basan en la carga de datos. Estos datos son extraídos previamente desde las aplicaciones propias de los movimientos bancarios. Esta información bancaria esta constituida en su mayoría por información sobre precios de distintos mercados. La finalidad de los sistemas de conciliación financiera es comprobar que todas las aplicaciones están alineadas, y que las operaciones realizadas con estos precios no se desvirtualizan de un siste...

  17. Elementos del sistema electoral del Congreso Mexicano

    OpenAIRE

    Aldo Medina García; Irina Cervantes Bravo

    2013-01-01

    El presente artículo es un estudio de los componentes del sistema electoral, diseñado por el legislador mexicano para integrar al parlamento federal. Estudio desarrollado a sabiendas de la importancia que reviste el sistema electoral como un medio que permite a los ciudadanos convertir su voto expresado en las urnas en escaños a favor de determinado candidato o partido. En dicho análisis tomamos en cuenta la evolución constitucional del sistema electoral mexicano, la participación de las fuer...

  18. Sistemas de salvaguardia en reactores EPR

    OpenAIRE

    2015-01-01

    En este documento se describe brevemente el funcionamiento de los diversos sistemas de una planta nuclear operada con un reactor de tipo PWR. Más concretamente, el proyecto se centra en una descripción exhaustiva de los sistemas de salvaguardia y seguridad que regulan el funcionamiento de un reactor de tipo EPR, así como la central nuclear que contiene a dicho reactor. El proceso ha consistido en clasificar y resumir los distintos sistemas que operan en dicha planta, estudiando sus caracterís...

  19. El sistema acusatorio oral en Costa Rica

    OpenAIRE

    Hernández Barrantes, Jessica María; Rodríguez Montoya, Carmen María; Tenorio Jara

    2014-01-01

    El 1.° de enero de 1998 entra en vigencia el nuevo Código Procesal Penal, con lo cual se experimenta una de las reformas más importantes en materia de Administración de Justicia Penal, que implica el paso de un Sistema Procesal Inquisitivo a un Sistema Acusatorio que procura la adversarialidad entre partes. El antiguo Sistema Penal Inquisitivo se caracterizaba en que las funciones de investigar y juzgar se ejercían por el Juez de instrucción, el proceso era escrito y las dil...

  20. Gestor de recursos sobre sistemas virtualizados

    OpenAIRE

    Gavilán García, Jesús Ruben

    2011-01-01

    Creacion, diseño e implementación de una nube (cloud) basado en un clúster de servidores con sistema de ficheros distribuido en red y virtualización de sistemas operativos que mejora la utilización de los recursos disponibles. Esta nueva arquitectura ofrece una nube privada que simplifica la gestión de los servicios y aporta una disminución del coste de mantenimiento, ademas de añadir flexibilidad, dinamismo y escalabilidad al sistema. Las tecnologías con las que se trabaja son GNU/Linux, Xen...

  1. Airborne Contamination Control through Directed Airflow in the Exam Room: A Pilot Study Using a Membrane Diffuser

    Directory of Open Access Journals (Sweden)

    Debajyoti Pati

    2010-01-01

    Full Text Available Airborne infections have been documented as a major source of hospital acquired infection - one of the major concerns in healthcare delivery. An important factor contributing to airborne infection is cross contamination through air particulate dispersion as affected by the ventilation system design. Clean room technology (with membrane ceiling has been successfully used in technology and pharmaceutical industries to control airborne contamination. This study examined the performance of membrane ceiling technology in controlling air particulate dispersion in a mock-up exam room. It included both performance tests in a mock-up room and a simulation study of six different ventilation system designs using Computational Fluid Dynamics (CFD analysis. Findings suggest that a membrane diffuser directed airflow ventilation strategy occupying approximately 20% to 30% of the ceiling surface and placed over the patient in a contemporary sized exam room provides a less turbulent airflow pattern and less mixing of the air between the patient and others in the room.

  2. National Clean Fleets Partnership (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2012-01-01

    Provides an overview of Clean Cities National Clean Fleets Partnership (NCFP). The NCFP is open to large private-sector companies that have fleet operations in multiple states. Companies that join the partnership receive customized assistance to reduce petroleum use through increased efficiency and use of alternative fuels. This initiative provides fleets with specialized resources, expertise, and support to successfully incorporate alternative fuels and fuel-saving measures into their operations. The National Clean Fleets Partnership builds on the established success of DOE's Clean Cities program, which reduces petroleum consumption at the community level through a nationwide network of coalitions that work with local stakeholders. Developed with input from fleet managers, industry representatives, and Clean Cities coordinators, the National Clean Fleets Partnership goes one step further by working with large private-sector fleets.

  3. An automated cleaning system for hospitals

    OpenAIRE

    Griffin, Colin

    2009-01-01

    Insufficient hygienic practices in Irish hospitals coupled with one of the highest number of reported cases of MRSA in Europe have highlighted the need for solutions to aid in the task of cleaning. This automated cleaning system consisted of two robots: a core robot developed separately with navigational and task scheduling capabilities integrated. The cleaning task was carried out by making use of a commercially available Roomba vacuum cleaner which had been adapted to operate in conju...

  4. National Clean Fleets Partnership (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2014-01-01

    Clean Cities' National Clean Fleets Partnership establishes strategic alliances with large fleets to help them explore and adopt alternative fuels and fuel economy measures to cut petroleum use. The initiative leverages the strength of nearly 100 Clean Cities coalitions, nearly 18,000 stakeholders, and more than 20 years of experience. It provides fleets with top-level support, technical assistance, robust tools and resources, and public acknowledgement to help meet and celebrate fleets' petroleum-use reductions.

  5. Novel room temperature ferromagnetic semiconductors

    Energy Technology Data Exchange (ETDEWEB)

    Gupta, Amita [KTH Royal Inst. of Technology, Stockholm (Sweden)

    2004-06-01

    Today's information world, bits of data are processed by semiconductor chips, and stored in the magnetic disk drives. But tomorrow's information technology may see magnetism (spin) and semiconductivity (charge) combined in one 'spintronic' device that exploits both charge and 'spin' to carry data (the best of two worlds). Spintronic devices such as spin valve transistors, spin light emitting diodes, non-volatile memory, logic devices, optical isolators and ultra-fast optical switches are some of the areas of interest for introducing the ferromagnetic properties at room temperature in a semiconductor to make it multifunctional. The potential advantages of such spintronic devices will be higher speed, greater efficiency, and better stability at a reduced power consumption. This Thesis contains two main topics: In-depth understanding of magnetism in Mn doped ZnO, and our search and identification of at least six new above room temperature ferromagnetic semiconductors. Both complex doped ZnO based new materials, as well as a number of nonoxides like phosphides, and sulfides suitably doped with Mn or Cu are shown to give rise to ferromagnetism above room temperature. Some of the highlights of this work are discovery of room temperature ferromagnetism in: (1) ZnO:Mn (paper in Nature Materials, Oct issue, 2003); (2) ZnO doped with Cu (containing no magnetic elements in it); (3) GaP doped with Cu (again containing no magnetic elements in it); (4) Enhancement of Magnetization by Cu co-doping in ZnO:Mn; (5) CdS doped with Mn, and a few others not reported in this thesis. We discuss in detail the first observation of ferromagnetism above room temperature in the form of powder, bulk pellets, in 2-3 mu-m thick transparent pulsed laser deposited films of the Mn (<4 at. percent) doped ZnO. High-resolution transmission electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS) spectra recorded from 2 to 200nm areas showed homogeneous

  6. Novel room temperature ferromagnetic semiconductors

    Energy Technology Data Exchange (ETDEWEB)

    Gupta, Amita

    2004-11-01

    Today's information world, bits of data are processed by semiconductor chips, and stored in the magnetic disk drives. But tomorrow's information technology may see magnetism (spin) and semiconductivity (charge) combined in one 'spintronic' device that exploits both charge and 'spin' to carry data (the best of two worlds). Spintronic devices such as spin valve transistors, spin light emitting diodes, non-volatile memory, logic devices, optical isolators and ultra-fast optical switches are some of the areas of interest for introducing the ferromagnetic properties at room temperature in a semiconductor to make it multifunctional. The potential advantages of such spintronic devices will be higher speed, greater efficiency, and better stability at a reduced power consumption. This Thesis contains two main topics: In-depth understanding of magnetism in Mn doped ZnO, and our search and identification of at least six new above room temperature ferromagnetic semiconductors. Both complex doped ZnO based new materials, as well as a number of nonoxides like phosphides, and sulfides suitably doped with Mn or Cu are shown to give rise to ferromagnetism above room temperature. Some of the highlights of this work are discovery of room temperature ferromagnetism in: (1) ZnO:Mn (paper in Nature Materials, Oct issue, 2003); (2) ZnO doped with Cu (containing no magnetic elements in it); (3) GaP doped with Cu (again containing no magnetic elements in it); (4) Enhancement of Magnetization by Cu co-doping in ZnO:Mn; (5) CdS doped with Mn, and a few others not reported in this thesis. We discuss in detail the first observation of ferromagnetism above room temperature in the form of powder, bulk pellets, in 2-3 mu-m thick transparent pulsed laser deposited films of the Mn (<4 at. percent) doped ZnO. High-resolution transmission electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS) spectra recorded from 2 to 200nm areas showed homogeneous

  7. [Hand hygiene during mobile X-ray imaging in the emergency room].

    Science.gov (United States)

    Aso, Mayumi; Kato, Kyoichi; Yasuda, Mitsuyoshi; Takahashi, Toshiyuki; Say, Syogo; Fujimura, Kazumasa; Kuroki, Kazunori; Nakazawa, Yasuo

    2011-01-01

    A hand hygiene behavior questionnaire and environmental survey were conducted regarding the mobile X-ray system used in the emergency room. As a result, among a total of 22 radiological technologists at this hospital who replied to the questionnaire, 18 wore disposable gloves when performing X-ray imaging using the mobile system. Among those 18, 11 were found to touch computed radiology (CR) consoles and HIS/RIS terminals while still wearing the gloves, thus creating the potential for spreading pathogens to other medical equipment and systems. According to the results of an environmental survey of the emergency imaging preparation room, the highest levels of bacteria were detected on CR consoles and HIS/RIS terminals. A possible reason for this is that these locations are not wiped down and cleaned as a part of routine cleaning and disinfection protocols, thus demonstrating the importance of cleaning and disinfection. Hand hygiene by medical personnel and appropriate cleaning and disinfecting of the working environment are important for preventing the spread of nosocomial infections. Radiological technologists are also required to take effective measures against infections in consideration of the high frequency of contact with both infected patients and patients susceptible to infections.

  8. Clean Cities Annual Metrics Report 2006

    Energy Technology Data Exchange (ETDEWEB)

    Bergeron, P.; Putsche, V.

    2007-07-01

    Report summarizes Clean Cities coalition accomplishments, including membership, funding, sales of alternative fuel blends, deployment of AFVs and HEVs, idle reduction initiatives, and fuel economy activities.

  9. New thinking for the boiler room.

    Science.gov (United States)

    Rose, Wayne

    2008-09-01

    Wayne Rose, marketing manager at integrated plant room manufacturer Armstrong Integrated Systems, explains how increasing use of off-site manufacture, the latest 3D modelling technology, and advances in control technology, are revolutionising boiler room design and construction.

  10. Sistemas basados en conocimiento usando Prolog

    Directory of Open Access Journals (Sweden)

    Zenaida García Valdivia

    2011-10-01

    Full Text Available Se exponen algunos de los resultados alcanzados en la Universidad Central "Marta Abreu" de Las Villas en cuanto al uso de un lenguaje de Programación Lógica (Prolog en la elaboración de Sistemas Basados en Conocimiento para diferentes áreas del saber como son la medicina, soldadura, educación, sistemas eléctricos de potencia, entre otros. Todos los sistemas elaborados utilizan el paradigma de la programación lógica para la representación del conocimiento de los expertos en los temas en cuestión y además hacen uso de entornos agradables a los usuarios a través interfaces visuales elaboradas en ambientes de programación para súper lenguajes ó utilizan un conjunto de herramientas para la elaboración de sistemas sobre la Web

  11. Unit for cleaning drilling muds

    Energy Technology Data Exchange (ETDEWEB)

    Dorosh, M.M.; Dera, Ya.I.; Fesenko, M.M.; Makedonov, N.I.; Surkov, V.T.

    1983-01-01

    A design is proposed for a unit for cleaning drilling muds which includes a settling tank with input sleeve and a sleeve of the purified mud and hydrocyclones. In order to improve the effectiveness of the degree of purification, the unit is equipped with an ejector and sludge filter arranged under the settling tank in the form of a grid installed in the upper part of the settling tank and connected to the sleeve of purified mud, while the inlet sleeve is arranged tangentially. The proposed unit can operate during drilling with the use of muds on water and carbon bases. As a result of its use, the degree of purification of the drilling mud reaches 30-35%; there is an increase in mechanical drilling rate, the service life of the sand-separator and the silt separators and decrease in wear of the pump equipment.

  12. Beam Cleaning and Collimation Systems

    CERN Document Server

    Redaelli, S

    2016-01-01

    Collimation systems in particle accelerators are designed to dispose of unavoidable losses safely and efficiently during beam operation. Different roles are required for different types of accelerator. The present state of the art in beam collimation is exemplified in high-intensity, high-energy superconducting hadron colliders, like the CERN Large Hadron Collider (LHC), where stored beam energies reach levels up to several orders of magnitude higher than the tiny energies required to quench cold magnets. Collimation systems are essential systems for the daily operation of these modern machines. In this document, the design of a multistage collimation system is reviewed, taking the LHC as an example case study. In this case, unprecedented cleaning performance has been achieved, together with a system complexity comparable to no other accelerator. Aspects related to collimator design and operational challenges of large collimation systems are also addressed.

  13. Carbon nanotubes – becoming clean

    Directory of Open Access Journals (Sweden)

    Nicole Grobert

    2007-01-01

    Full Text Available Carbon nanotubes (CNTs are now well into their teenage years. Early on, theoretical predictions and experimental data showed that CNTs possess chemical and mechanical properties that exceed those of many other materials. This has triggered intense research into CNTs. A variety of production methods for CNTs have been developed; chemical modification, functionalization, filling, and doping have been achieved; and manipulation, separation, and characterization of individual CNTs is now possible. Today, products containing CNTs range from tennis rackets and golf clubs to vehicle fenders, X-ray tubes, and Li ion batteries. Breakthroughs for CNT-based technologies are anticipated in the areas of nanoelectronics, biotechnology, and materials science. In this article, I review the current situation in CNT production and highlight the importance of clean CNT material for the success of future applications.

  14. Cleaning lady saves the day

    CERN Multimedia

    2009-01-01

    At lunch time on Wednesday 21 January a guest at the CERN hostel put her food in the microwave oven and switched it on. "Within seconds I smelt plastic. I looked into the oven and saw flames. I switched it off, took my food out. But the flames continued and so I ran for the door." In the corridor she ran into Jane Kiranga, a cleaning lady working for the company ISS. Without hesitation Jane picked up a portable fire extinguisher, returned to the kitchen and stopped the fire. The Fire Brigade arrived a few minutes later and only needed to ventilate the kitchen. "Jane was just in time, because the flames had not left the oven yet. Her model behaviour deserves recognition," said the team leader on duty for the CERN Fire Brigade. A few days later Jane received a gift voucher from the Prevention and Training section of the Safety Commission (photo).

  15. El sistema presidencial mexicano. Actualidad y perspectivas

    OpenAIRE

    Diego VALADÉS

    2011-01-01

    Este ensayo presenta un análisis del sistema presidencial mexicano desde una perspectiva constitucional. Se hace especial referencia a la concentración del poder presidencial y a las relaciones entre el Congreso y el gobierno. Asimismo, se incluyen consideraciones comparativas entre los sistemas presidenciales estadounidense y mexicano. El concepto vertical del poder en México no ha sido modificado de manera significativa desde su versión original de 1917, por lo que se hacen ostensibles las ...

  16. The NOXSO clean coal project

    Energy Technology Data Exchange (ETDEWEB)

    Black, J.B.; Woods, M.C.; Friedrich, J.J.; Browning, J.P. [NOXSO Corp., Bethel Park, PA (United States)

    1997-12-31

    The NOXSO Clean Coal Project will consist of designing, constructing, and operating a commercial-scale flue-gas cleanup system utilizing the NOXSO Process. The process is a waste-free, dry, post-combustion flue-gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO{sub 2}) and nitrogen oxides (NO{sub x}) from flue gas from coal-fired boilers. The NOXSO plant will be constructed at Alcoa Generating Corporation`s (AGC) Warrick Power Plant near Evansville, Indiana and will treat all the flue gas from the 150-MW Unit 2 boiler. The NOXSO plant is being designed to remove 98% of the SO{sub 2} and 75% of the NO{sub x} when the boiler is fired with 3.4 weight percent sulfur, southern-Indiana coal. The NOXSO plant by-product will be elemental sulfur. The elemental sulfur will be shipped to Olin Corporation`s Charleston, Tennessee facility for additional processing. As part of the project, a liquid SO{sub 2} plant has been constructed at this facility to convert the sulfur into liquid SO{sub 2}. The project utilizes a unique burn-in-oxygen process in which the elemental sulfur is oxidized to SO{sub 2} in a stream of compressed oxygen. The SO{sub 2} vapor will then be cooled and condensed. The burn-in-oxygen process is simpler and more environmentally friendly than conventional technologies. The liquid SO{sub 2} plant produces 99.99% pure SO{sub 2} for use at Olin`s facilities. The $82.8 million project is co-funded by the US Department of Energy (DOE) under Round III of the Clean Coal Technology program. The DOE manages the project through the Pittsburgh Energy Technology Center (PETC).

  17. An Optimisation Approach for Room Acoustics Design

    DEFF Research Database (Denmark)

    Holm-Jørgensen, Kristian; Kirkegaard, Poul Henning; Andersen, Lars

    2005-01-01

    This paper discuss on a conceptual level the value of optimisation techniques in architectural acoustics room design from a practical point of view. It is chosen to optimise one objective room acoustics design criterium estimated from the sound field inside the room. The sound field is modeled...

  18. 32 CFR 701.6 - Reading rooms.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 5 2010-07-01 2010-07-01 false Reading rooms. 701.6 Section 701.6 National... Reading rooms. The FOIA requires that (a)(2) records created on or after 1 November 1996, be made available electronically (starting 1 November 1997) as well as in hard copy, in the FOIA reading room...

  19. ActiveClean: Interactive Data Cleaning While Learning Convex Loss Models

    OpenAIRE

    2016-01-01

    Data cleaning is often an important step to ensure that predictive models, such as regression and classification, are not affected by systematic errors such as inconsistent, out-of-date, or outlier data. Identifying dirty data is often a manual and iterative process, and can be challenging on large datasets. However, many data cleaning workflows can introduce subtle biases into the training processes due to violation of independence assumptions. We propose ActiveClean, a progressive cleaning ...

  20. Microbial water quality in clean water tanks following inspection and cleaning

    OpenAIRE

    Christensen, Sarah Christine Boesgaard; Esbjørn, Anne; Albrechtsen, Hans-Jørgen

    2014-01-01

    Increased bacterial counts are often registered in drinking water leaving clean water tanks after the tanks have been emptied, inspected and cleaned by flushing. To investigate the reason for the increased bacterial concentrations and consequently limit it, samples from two clean water tanks before, during and after cleaning of the tanks were analysed. Bacteria were quantified, the dominating bacterial groups were identified and re-growth potential in the water was estimated. Bacterial counts...

  1. Gerencia de sistemas conductuales y cambio organizacional

    Directory of Open Access Journals (Sweden)

    Guillermo E. Yáber

    1998-01-01

    Full Text Available La gerencia de sistemas conductuales es una tecnología basada en un enfoque científico para el análisis del comportamiento en sistemas humanos. Esta tecnología ayuda a las organizaciones a definir y lograr sus metas. Consiste en el análisis, especificación, diseño, implementación, evaluación y reciclaje de sistemas de motivación humana que optimizan el desempeño y desarrollo a nivel del sistema total, departamental e individual de la organización. Utiliza tres modelos: El diseño de sistemas dirigidos hacia la meta, el análisis de «Tres Contingencias» y la gerencia del desempeño para el cambio cultural. Este artículo incluye la descripción del marco teórico y metodológico de la gerencia de sistemas conductuales y su aplicación en las áreas de servicios y producción.

  2. Rudimentary Cleaning Compared to Level 300A

    Science.gov (United States)

    Arpin, Christina Y. Pina; Stoltzfus, Joel

    2012-01-01

    A study was done to characterize the cleanliness level achievable when using a rudimentary cleaning process, and results were compared to JPR 5322.1G Level 300A. While it is not ideal to clean in a shop environment, some situations (e.g., field combat operations) require oxygen system hardware to be maintained and cleaned to prevent a fire hazard, even though it cannot be sent back to a precision cleaning facility. This study measured the effectiveness of basic shop cleaning. Initially, three items representing parts of an oxygen system were contaminated: a metal plate, valve body, and metal oxygen bottle. The contaminants chosen were those most likely to be introduced to the system during normal use: oil, lubricant, metal shavings/powder, sand, fingerprints, tape, lip balm, and hand lotion. The cleaning process used hot water, soap, various brushes, gaseous nitrogen, water nozzle, plastic trays, scouring pads, and a controlled shop environment. Test subjects were classified into three groups: technical professionals having an appreciation for oxygen hazards; professional precision cleaners; and a group with no previous professional knowledge of oxygen or precision cleaning. Three test subjects were in each group, and each was provided with standard cleaning equipment, a cleaning procedure, and one of each of the three test items to clean. The results indicated that the achievable cleanliness level was independent of the technical knowledge or proficiency of the personnel cleaning the items. Results also showed that achieving a Level 300 particle count was more difficult than achieving a Level A nonvolatile residue amount.

  3. Hydrogen peroxide room disinfection--ready for prime time?

    Science.gov (United States)

    Huttner, Benedikt D; Harbarth, Stephan

    2015-05-08

    Non-manual techniques for terminal disinfection of hospital rooms have gained increasing interest in recent years as means to reduce transmission of multidrug-resistant organisms (MDROs). A prospective crossover study by Blazejewski and colleagues in five ICUs of a French academic hospital with a high prevalence of MDRO carriers showed that two different hydrogen peroxide (H2O2)-based non-touch disinfection techniques reduced environmental contamination with MDROs after routine cleaning. This study provides further evidence of the 'in use' bioburden reduction offered by these techniques. Before H2O2-based non-touch disinfection can be recommended for routine clinical use outside specific outbreak situations, further studies need to show whether the environmental contamination reduction provided by these techniques is clinically relevant and results in reduced cross-infections with MDROs.

  4. Equivalent cleaning in a juvenile facultative and obligate cleaning wrasse: an insight into the evolution of cleaning in labrids?

    Science.gov (United States)

    Grutter, Alexandra S.; Feeney, William E.

    2016-09-01

    Species that exhibit ontogenetic variation in interspecific cleaning behaviours may offer insights into how interspecific cooperation evolves. We investigated the foraging ecology of the yellowtail tubelip wrasse ( Diproctacanthus xanthurus), a facultative cleaner as a juvenile and corallivore as an adult, and compared its juvenile ecology with that of juvenile blue-streak cleaner wrasse ( Labroides dimidiatus), a closely related and sympatric obligate cleaner. While juveniles of the two species differed in the amount of time they inspected clients, the number of client individuals and species that were cleaned and the proportion that posed did not differ, nor did the number of ectoparasitic isopods in their guts. In contrast, adult yellowtail tubelip wrasse had fewer isopods and more coral mucus in their guts than juveniles. These data support a hypothesized series of events in which juvenile cleaning acts as an evolutionary precursor to obligate cleaning and suggest that the yellowtail tubelip wrasse may present an intermediate between corallivory and cleaning.

  5. Quantitative assessment of airborne exposures generated during common cleaning tasks: a pilot study

    Directory of Open Access Journals (Sweden)

    Perry Melissa J

    2010-11-01

    during mirror cleaning. Conclusions Our results indicate that airborne exposures from short-term cleaning tasks can remain in the air even after tasks' cessation, suggesting potential exposures to anyone entering the room shortly after cleaning. Additionally, 2-BE concentrations from cleaning could approach occupational exposure limits and warrant further investigation. Measurement methods applied in this study can be useful for workplace assessment of airborne exposures during cleaning, if the limitations identified here are addressed.

  6. Flow in air conditioned rooms

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    1974-01-01

    of the flow equations is demonstrated and the flow in air conditioned rooms in case of steady two dimensional flow is predi cted. Compari son with measured results is shown i n the case of small Archimedes numbers, and predictions are shown at high Archimedes numbers. A numerical prediction of f low and heat......Flow in air conditioned r ooms is examined by means of model experiments . The different gearnetries giving unsteady, steady three- dimensional and steady twodimensional flow are determined . Velacity profiles and temperature profiles are measured in some of the geometries. A numerical solution...

  7. Cogeneration Systems; Sistemas de Cogeneracion

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez M, Manuel F; Huante P, Liborio; Romo M, Cesar A [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2006-07-01

    The present article deals on relevant aspects on the subject of cogeneration within the Mexican territorial limits. In the first place it is presented the role of Mexico in terms of its cogeneration potential, the type of service that has obtained from this predominant modality of cogeneration for self-supplying, the most propitious sectors to develop it, its legislations on the matter, the projects made for the implementation of cogeneration plants, as well as the existing cogeneration schemes for its respective optimization proposals. Without leaving out the analysis on the different types of evaluation on the efficiency of cogeneration systems and the aspects to consider for the election of a generation cycle. [Spanish] El presente articulo trata sobre aspectos relevantes en materia de cogeneracion dentro de los limites territoriales de la nacion mexicana. Se muestra en primer lugar el papel de Mexico en terminos de su potencial de cogeneracion, el tipo de servicio que ha obtenido de esta predominantemente (modalidad de cogeneracion para autoabastecimiento), los sectores mas propicios para desarrollarla, sus legislaciones al respecto, los proyectos realizados para la implementacion de plantas de cogeneracion, asi como los esquemas de cogeneracion existentes con sus respectivas propuestas de optimizacion. Sin dejar de lado el analisis sobre los distintos tipos de evaluacion de la eficiencia de sistemas de cogeneracion y los aspectos a considerar para la eleccion de un ciclo de generacion.

  8. Human Response to Ductless Personalised Ventilation: Impact of Air Movement, Temperature and Cleanness on Eye Symptoms

    DEFF Research Database (Denmark)

    Dalewski, Mariusz; Fillon, Maelys; Bivolarova, Maria;

    2013-01-01

    The performance of ductless personalized ventilation (DPV) in conjunction with displacement ventilation (DV) was studied in relation to peoples’ health, comfort and performance. This paper presents results on the impact of room air temperature, using of DPV and local air filtration on eye blink...... rate and tear film quality. In a test room with DV and six workstations 30 human subjects were exposed for four hours to each of the following 5 experimental conditions: 23 °C and DV only, 23 °C and DPV with air filter, 29 °C and DV only, 29 °C and DPV, and 29 °C and DPV with air filter. At warm...... environment facially applied individually controlled air movement of room air, with or without local filtering, did not have significant impact on eye blink frequency and tear film quality. The local air movement and air cleaning resulted in increased eye blinking frequency and improvement of tear film...

  9. How Do We Clean Our Water and How Clean Does It Need to Be?

    Science.gov (United States)

    Whitburn, Niki

    2013-01-01

    Nowadays, in the United Kingdom, citizens take for granted clean water pumped directly into their homes, but it was not always the case, and is still not so in many countries. Could people clean water themselves if they had to and what could they then use it for? Would it actually be "clean enough" to drink? The author presents children…

  10. Clean Cities Now Vol. 19, No. 2

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-12-18

    Clean Cities Now is the official bi-annual newsletter of Clean Cities, an initiative designed to reduce petroleum consumption in the transportation sector by advancing the use of alternative and renewable fuels, fuel economy improvements, idle-reduction measures, and new technologies, as they emerge.

  11. Gas turbine cleaning upgrade (compressor wash)

    Energy Technology Data Exchange (ETDEWEB)

    Asplund, P. [Gas Turbine Efficiency, Jarfalla (Sweden)

    1998-12-31

    The influence of gas turbine degradation on operating costs is high. Gas turbine cleaning is one of many actions taken for power recovery and is to consider as preventive maintenance. It is generally performed within the industrial field and occasionally within the aero sector. In order to meet the gas turbine development win high blade loads and ever-increasing temperatures, together with emission Aces and environmental regulations, more efficient and careful cleaning methods are needed. Following a survey about potentials for cost reduction in gas turbine operation a new man-hour and water saving cleaning method has been evaluated for a standard process. Compared with traditional cleaning methods, the new method is water,- cost,- weight and space saving due to a new washing technique. Traditional methods are based on using different nozzles for ON and OFF-line cleaning, which rise the demand for complicated systems. In the new method the same nozzle installation, same liquid flow and pressure is used for both ON and OFF-line cleaning. This gives a cost reduction of appr. 20.000 - 30.000 USD per gas turbine depending on installation and size. Evaluation of the new method shows significantly improved ON -line cleaning performance and thus OFF -line cleaning is required only during scheduled stops. (orig.) 10 refs.

  12. Clean Cities Now Vol. 20, No. 1

    Energy Technology Data Exchange (ETDEWEB)

    None

    2016-06-13

    Clean Cities Now is the official semi-annual newsletter of Clean Cities, an initiative designed to reduce petroleum consumption in the transportation sector by advancing the use of alternative and renewable fuels, fuel economy improvements, idle-reduction measures, and new technologies, as they emerge.

  13. ASRM process development in aqueous cleaning

    Science.gov (United States)

    Swisher, Bill

    1992-12-01

    Viewgraphs are included on process development in aqueous cleaning which is taking place at the Aerojet Advanced Solid Rocket Motor (ASRM) Division under a NASA Marshall Space and Flight Center contract for design, development, test, and evaluation of the ASRM including new production facilities. The ASRM will utilize aqueous cleaning in several manufacturing process steps to clean case segments, nozzle metal components, and igniter closures. ASRM manufacturing process development is underway, including agent selection, agent characterization, subscale process optimization, bonding verification, and scale-up validation. Process parameters are currently being tested for optimization utilizing a Taguci Matrix, including agent concentration, cleaning solution temperature, agitation and immersion time, rinse water amount and temperature, and use/non-use of drying air. Based on results of process development testing to date, several observations are offered: aqueous cleaning appears effective for steels and SermeTel-coated metals in ASRM processing; aqueous cleaning agents may stain and/or attack bare aluminum metals to various extents; aqueous cleaning appears unsuitable for thermal sprayed aluminum-coated steel; aqueous cleaning appears to adequately remove a wide range of contaminants from flat metal surfaces, but supplementary assistance may be needed to remove clumps of tenacious contaminants embedded in holes, etc.; and hot rinse water appears to be beneficial to aid in drying of bare steel and retarding oxidation rate.

  14. Cathodic ARC surface cleaning prior to brazing

    Energy Technology Data Exchange (ETDEWEB)

    Dave, V. R. (Vivek R.); Hollis, K. J. (Kendall J.); Castro, R. G. (Richard G.); Smith, F. M. (Frank M.); Javernick, D. A. (Daniel A.)

    2002-01-01

    Surface cleanliness is one the critical process variables in vacuum furnace brazing operations. For a large number of metallic components, cleaning is usually accomplished either by water-based alkali cleaning, but may also involve acid etching or solvent cleaning / rinsing. Nickel plating may also be necessary to ensure proper wetting. All of these cleaning or plating technologies have associated waste disposal issues, and this article explores an alternative cleaning process that generates minimal waste. Cathodic arc, or reserve polarity, is well known for welding of materials with tenacious oxide layers such as aluminum alloys. In this work the reverse polarity effect is used to clean austenitic stainless steel substrates prior to brazing with Ag-28%Cu. This cleaning process is compared to acid pickling and is shown to produce similar wetting behavior as measured by dynamic contact angle experiments. Additionally, dynamic contact angle measurements with water drops are conducted to show that cathodic arc cleaning can remove organic contaminants as well. The process does have its limitations however, and alloys with high titanium and aluminum content such as nickel-based superalloys may still require plating to ensure adequate wetting.

  15. Coal can be a Clean Fuel

    Science.gov (United States)

    Environmental Science and Technology, 1975

    1975-01-01

    Redevelopment and expansion of United States coal resources are economic necessities. Environmentalists' objections to the less expensive, available United States coal, that introduces large amounts of SOx and particulates into the air, may be overcome with the options of coal cleaning, tall stacks, material recovery and stack cleaning. (BT)

  16. A multistep approach for reticle cleaning

    NARCIS (Netherlands)

    Koster, N.B.; Donck, J.C.J. van der; Stortelder, J.K.; Jong, A.J. de; Molkenboer, F.T.

    2012-01-01

    The introduction of EUV Lithography for the next node has two major obstacles at the moment; the first is source power and reliability and the second is defect free reticles and damage free cleaning of reticles. We present our results on our investigation for damage free cleaning of EUV reticles wit

  17. Clean Cities Now Vol. 17, No. 2

    Energy Technology Data Exchange (ETDEWEB)

    None

    2013-10-23

    The Fall 2013 issue of the biannual newsletter for the U.S. Department of Energy's Clean Cities initiative. The newsletter includes feature stories on deployment of alternative fuels and advanced vehicles, and articles on Clean Cities coalition successes across the country.

  18. Clean Cities Now, Vol. 18, No. 1

    Energy Technology Data Exchange (ETDEWEB)

    None

    2014-04-30

    The Spring 2014 edition of the semi-annual newsletter for the U.S. Department of Energy's Clean Cities initiative. The newsletter includes feature stories on deployment of alternative fuels and advanced vehicles, and articles on Clean Cities coalition successes across the country.

  19. Clean Cities Now Vol. 20, No. 2

    Energy Technology Data Exchange (ETDEWEB)

    None

    2017-01-13

    Clean Cities Now is the official semi-annual newsletter of Clean Cities, an initiative designed to reduce petroleum consumption in the transportation sector by advancing the use of alternative and renewable fuels, fuel economy improvements, idle-reduction measures, and new technologies, as they emerge.

  20. Clean Cities 2010 Annual Metrics Report

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, C.

    2012-10-01

    This report details the petroleum savings and vehicle emissions reductions achieved by the U.S. Department of Energy's Clean Cities program in 2010. The report also details other performance metrics, including the number of stakeholders in Clean Cities coalitions, outreach activities by coalitions and national laboratories, and alternative fuel vehicles deployed.

  1. Clean Cities 2011 Annual Metrics Report

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, C.

    2012-12-01

    This report details the petroleum savings and vehicle emissions reductions achieved by the U.S. Department of Energy's Clean Cities program in 2011. The report also details other performance metrics, including the number of stakeholders in Clean Cities coalitions, outreach activities by coalitions and national laboratories, and alternative fuel vehicles deployed.

  2. Plasma discharge self-cleaning filtration system

    Science.gov (United States)

    Cho, Young I.; Fridman, Alexander; Gutsol, Alexander F.; Yang, Yong

    2014-07-22

    The present invention is directed to a novel method for cleaning a filter surface using a plasma discharge self-cleaning filtration system. The method involves utilizing plasma discharges to induce short electric pulses of nanoseconds duration at high voltages. These electrical pulses generate strong Shockwaves that disintegrate and dislodge particulate matter located on the surface of the filter.

  3. Electro-impulse Method of Surface Cleaning

    OpenAIRE

    Bekbolat R. Nussupbekov; Kappas Kussaynov; Аyanbergen К. Khassenov

    2013-01-01

    This article is focused on the qualitative assessment of the electro-impulse method of surface cleaning efficiency. Heat exchanger tubes are cleaned under the action of blast waves created by the high voltage discharge in the liquid. The article presents dependences of degree of surface purification on the impulse voltage at switching device and on spark rate

  4. Electro-impulse Method of Surface Cleaning

    Directory of Open Access Journals (Sweden)

    Bekbolat R. Nussupbekov

    2013-01-01

    Full Text Available This article is focused on the qualitative assessment of the electro-impulse method of surface cleaning efficiency. Heat exchanger tubes are cleaned under the action of blast waves created by the high voltage discharge in the liquid. The article presents dependences of degree of surface purification on the impulse voltage at switching device and on spark rate

  5. 7 CFR 51.314 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.314 Section 51.314 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Apples Definitions § 51.314 Clean. “Clean” means that the apples are free...

  6. 7 CFR 51.3155 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.3155 Section 51.3155 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Nectarines Definitions § 51.3155 Clean. “Clean” means that the fruit is...

  7. 7 CFR 29.2506 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 29.2506 Section 29.2506 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing...-Cured Tobacco (u.s. Types 22, 23, and Foreign Type 96) § 29.2506 Clean. Tobacco is described as...

  8. 7 CFR 51.2956 - Practically clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Practically clean. 51.2956 Section 51.2956 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Walnuts in the Shell Definitions § 51.2956 Practically clean. Practically...

  9. 7 CFR 51.1529 - Clean.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Clean. 51.1529 Section 51.1529 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Standards for Grades of Fresh Plums and Prunes Definitions § 51.1529 Clean. “Clean” means that the fruit...

  10. State Grid Contributes to Clean Energy Development

    Institute of Scientific and Technical Information of China (English)

    Zhao

    2010-01-01

    The development of clean energy is an inevitable choice for China to achieve sustainable development.The article presents the strategic thinking and measures for the promotion of clean energy development in grids, which shows that the company will bear its responsibilities for the development as a large state-owned enterprise.

  11. Healthcare quality in Emergency Room

    Directory of Open Access Journals (Sweden)

    P Sarafis

    2009-02-01

    Full Text Available Aim: This study wants to clarify the issue of quality in health but also to determine the qualitative and quantitative quality indicators in Emergency department that their measurement is a discipline to countries developed in the area of health in order to promote quality in emergency care. Measurement of specific indicators through the evaluation of data and results, quality in Emergency Room is verified.Method: Review of relative bibliography was made in electronic bases of Blackwell-Synergy (1990-2008, and Medline (1990-2008 using as key words Emergency Room, safety, quality, responsiveness, satisfaction, effectiveness, efficiency, appropriateness, accessibility, competence. Complementary bibliography was found through other electronic search engines and by reviewing references of already found articles.Results: determinants for quality in the provision of health services were found to be the credibility that consists of the stability of care, the consistency and the duration of performance, the personnel responsiveness and the vigilance to serve the health user, its efficiency, the accessibility of health services, the politeness, understanding and communication of health professionals in relation to their professionalism, the security and the working environment.

  12. Robotic cleaning of a spent fuel pool

    Energy Technology Data Exchange (ETDEWEB)

    Roman, H.T.; Marian, F.A. (PSE and G Research Corp., Newark, NJ (US)); Silverman, E.B.; Barkley, V.P. (ARD Corp., Columbia, MD (US))

    1987-05-01

    Spent fuel pools at nuclear power plants are not cleaned routinely, other than by purifying the water that they contain. Yet, debris can collect on the bottom of a pool and should be removed prior to fuel transfer. At Public Service Electric and Gas Company's Hope Creek Nuclear Power Plant, a submersible mobile robot - ARD Corporation's SCAVENGER - was used to clean the bottom of the spent fuel pool prior to initial fuel loading. The robotic device was operated remotely (as opposed to autonomously) with a simple forward/reverse control, and it cleaned 70-80% of the pool bottom. This paper reports that a simple cost-benefit analysis shows that the robotic device would be less expensive, on a per mission basis, than other cleaning alternatives, especially if it were used for other similar cleaning operations throughout the plant.

  13. Clean Coal Technology Programs: Program Update 2009

    Energy Technology Data Exchange (ETDEWEB)

    None

    2009-10-01

    The purpose of the Clean Coal Technology Programs: Program Update 2009 is to provide an updated status of the U.S. Department of Energy (DOE) commercial-scale demonstrations of clean coal technologies (CCT). These demonstrations have been performed under the Clean Coal Technology Demonstration Program (CCTDP), the Power Plant Improvement Initiative (PPII), and the Clean Coal Power Initiative (CCPI). Program Update 2009 provides: (1) a discussion of the role of clean coal technology demonstrations in improving the nation’s energy security and reliability, while protecting the environment using the nation’s most abundant energy resource—coal; (2) a summary of the funding and costs of the demonstrations; and (3) an overview of the technologies being demonstrated, along with fact sheets for projects that are active, recently completed, or recently discontinued.

  14. Northeast Clean Energy Application Center

    Energy Technology Data Exchange (ETDEWEB)

    Bourgeois, Tom

    2013-09-30

    From October 1, 2009 through September 30, 2013 (“contract period”), the Northeast Clean Energy Application Center (“NE-CEAC”) worked in New York and New England (Connecticut, Rhode Island, Vermont, Massachusetts, New Hampshire, and Maine) to create a more robust market for the deployment of clean energy technologies (CETs) including combined heat and power (CHP), district energy systems (DES), and waste heat recovery (WHR) systems through the provision of technical assistance, education and outreach, and strategic market analysis and support for decision-makers. CHP, DES, and WHR can help reduce greenhouse gas emissions, reduce electrical and thermal energy costs, and provide more reliable energy for users throughout the United States. The NE-CEAC’s efforts in the provision of technical assistance, education and outreach, and strategic market analysis and support for decision-makers helped advance the market for CETs in the Northeast thereby helping the region move towards the following outcomes: • Reduction of greenhouse gas emissions and criteria pollutants • Improvements in energy efficiency resulting in lower costs of doing business • Productivity gains in industry and efficiency gains in buildings • Lower regional energy costs • Strengthened energy security • Enhanced consumer choice • Reduced price risks for end-users • Economic development effects keeping more jobs and more income in our regional economy Over the contract period, NE-CEAC provided technical assistance to approximately 56 different potential end-users that were interested in CHP and other CETs for their facility or facilities. Of these 56 potential end-users, five new CHP projects totaling over 60 MW of install capacity became operational during the contract period. The NE-CEAC helped host numerous target market workshops, trainings, and webinars; and NE-CEAC staff delivered presentations at many other workshops and conferences. In total, over 60 different workshops

  15. Clean Energy Policy Analysis: Impact Analysis of Potential Clean Energy Policy Options for the Hawaii Clean Energy Initiative (HCEI)

    Energy Technology Data Exchange (ETDEWEB)

    Busche, S.; Doris, E.; Braccio, R.; Lippert, D.; Finch, P.; O' Toole, D.; Fetter, J.

    2010-04-01

    This report provides detailed analyses of 21 clean energy policy options considered by the Hawaii Clean Energy Initiative working groups for recommendation to the 2010 Hawaii State Legislature. The report considers the impact each policy may have on ratepayers, businesses, and the state in terms of energy saved, clean energy generated, and the financial costs and benefits. The analyses provide insight into the possible impacts, both qualitative and quantitative, that these policies may have in Hawaii based on the experience with these policies elsewhere. As much as possible, the analyses incorporate Hawaii-specific context to reflect the many unique aspects of energy use in the State of Hawaii.

  16. Clean Coal Initiatives in India

    Directory of Open Access Journals (Sweden)

    Sribas Goswami

    2014-08-01

    Full Text Available Availability of, and access to, coal is a crucial element of modern economies and it helps pave the way for human development. Accordingly, the thermal power sector and steel industries have been given a high priority in the national planning processes in India and a concerted focus on enhancing these sectors have resulted in significant gain in generation and availability of electricity and steel in the years since independence. To meet the need of huge demand of power coal is excavated. The process of excavation to the use of coal is potential enough to degrade the environment. Coal Mining is a development activity, which is bound to damage the natural ecosystem by all its activities directly and ancillary, starting from land acquisition to coal beneficiation and use of the products. Huge areas in the Raniganj and Jharia coal field in India have become derelict due to abandoned and active opencast and underground mines. The study is pursued to illustrate the facts which show the urgent need to clean coal mining in India.

  17. Clean fuels from coal gasification.

    Science.gov (United States)

    Squires, A M

    1974-04-19

    The quickest way to establish a visible new margin against energy demand is the historic producer serving small industry and gasifying Pennsylvania anthracite. In 2 years many producers could be in operation. The quickest way to obtain significant supplies of "new" gas or oil is to retrofit existing electricity and industrial boilers for power or industrial gas. Important results could be achieved in 6 years. Table 3 identifies development activities deserving high priority to speed the capture of gas and oil now burned in boilers, and to speed realization the advantages of combined-cycle equipment running on coal (8). Obviously, these activities are not enough. Many exciting and worthwhile concepts at various stages of development can furnish improved techniques for converting coal to pipeline gas and liquid fuels for the long run. Reviews of these concepts are available (6, 32, 35). I have neglected them in this article not to deny their importance but to stress the earlier opportunities from technology that is ready now, or nearly ready. The oil and gas industries might well consider the historical progression from Wells Fargo to Western Union to American Telephone and Telegraph to Radio Corporation of America. These industries will miss the boat if they regard themselves simply as purveyors of their historical fuels and not as purveyors of clean energy. The gas industry especially will be in trouble if it lets its major industrial customers, such as steel and electricity, provide their own supplies of power and industrial gas.

  18. Midwest Clean Energy Application Center

    Energy Technology Data Exchange (ETDEWEB)

    Cuttica, John; Haefke, Cliff

    2013-12-31

    The Midwest Clean Energy Application Center (CEAC) was one of eight regional centers that promoted and assisted in transforming the market for combined heat and power (CHP), waste heat to power (WHP), and district energy (DE) technologies and concepts throughout the United States between October 1, 2009 and December 31, 2013. The key services the CEACs provided included: Market Opportunity Analyses – Supporting analyses of CHP market opportunities in diverse markets including industrial, federal, institutional, and commercial sectors. Education and Outreach – Providing information on the energy and non-energy benefits and applications of CHP to state and local policy makers, regulators, energy end-users, trade associations and others. Information was shared on the Midwest CEAC website: www.midwestcleanergy.org. Technical Assistance – Providing technical assistance to end-users and stakeholders to help them consider CHP, waste heat to power, and/or district energy with CHP in their facility and to help them through the project development process from initial CHP screening to installation. The Midwest CEAC provided services to the Midwest Region that included the states of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin.

  19. New catalysts for clean environment

    Energy Technology Data Exchange (ETDEWEB)

    Maijanen, A.; Hase, A. [eds.] [VTT Chemical Technology, Espoo (Finland)

    1996-12-31

    VTT launched a Research Programme on Chemical Reaction Mechanisms (CREAM) in 1993. The three-year programme (1993-1995) has focused on reaction mechanisms relevant to process industries and aimed at developing novel catalysts and biocatalysts for forest, food, and specialty chemicals industries as well as for energy production. The preliminary results of this programme have already been presented in the first symposium organized in Espoo in September 1994. To conclude the programme the second symposium is organized in Otaniemi, Espoo on January 29 - 30, 1996. Papers by 19 speakers and 17 poster presentations of the 1996 Symposium are included in this book. The Symposium consists of four sessions: Biotechnology for Natural Fibers Processing, New Biocatalysts, Catalysts for Clean Energy, and New Opportunities for Chemical Industry. The CREAM programme has tried to foresee solutions for the problems challenged by the public concern on environmental aspects, especially dealing with industrial processes and novel use of raw materials and energy. The programme has followed the basic routes that can lead to natural and simple solutions to develop processes in the fields of forest, food fine chemicals, and energy industry. This symposium presents the results of the programme to learn and further discuss together with the international experts that have been invited as keynote speakers. (author)

  20. 77 FR 44672 - Notice of Lodging of Consent Decree Under the Clean Water and Clean Air Acts

    Science.gov (United States)

    2012-07-30

    ... of Lodging of Consent Decree Under the Clean Water and Clean Air Acts Notice is hereby given that on... resolve its violations of the Clean Air Act and the Clean Water Act. The Allegheny County Health... the Clean Water Act, Plaintiffs allege that Shenango violated the effluent limitations in the...

  1. Operating room of the future.

    Science.gov (United States)

    Bharathan, Rasiah; Aggarwal, Rajesh; Darzi, Ara

    2013-06-01

    Development of surgical care in the 21st century is increasingly dependent on demonstrating safety, efficacy and cost effectiveness. Over the past 2 decades, the potential role of simulation in surgery has been explored with encouraging results; this can now be linked to direct improvement in the quality of care provision. Computer-assisted surgical platforms, such as robotic surgery, offer us the versatility to embrace a host of technical and technological developments. Rapid development in nanomedicine will expand the limits of operative performance through improved navigation and surgical precision. Integration of the multiple functions of the future operating room will be essential in optimising resource management. The key to bringing about the necessary paradigm shift in the design and delivery of modern surgical care is to appreciate that we now function in an information age, where the integrity of processes is driven by apt data management.

  2. Room acoustics for the aged.

    Science.gov (United States)

    Plomp, R; Duquesnoy, A J

    1980-12-01

    This article deals with the combined effects of noise and reverberation on the speech-reception threshold for sentences. It is based on a series of current investigations on: (1) the modulation-transfer function as a measure of speech intelligibility in rooms, (2) the applicability of this concept to hearing-impaired persons, and (3) hearing loss for speech in quiet and in noise as a function of age. It is shown that, generally, in auditoria, classrooms, etc. the reverberation time T, acceptable for normal-hearing listeners, has to be reduced to (0.75)DT in order to be acceptable for elderly subjects with a hearing loss of D dB for speech in noise; for listening conditions as in lounges, restaurants, etc. the corresponding value is (0.82)DT.

  3. Regulación neuroendocrina del sistema inmune

    OpenAIRE

    Caballero Hernández, Diana; Tamez Guerra, Reyes S.; RODRÍGUEZ PADILLA, CRISTINA; Tamez Guerra, Patricia; Weber, Richard J.; GÓMEZ FLORES, RICARDO

    2001-01-01

    El sistema inmune recibe señales del sistema nervioso central (cerebro) vía el sistema nervioso autónomo y el sistema endocrino. El sistema inmune, a su vez, envía información al cerebro vía citocinas. Este sistema de retroalimentación es vital para el funcionamiento adecuado del organismo en situaciones normales, y en aquellas en las que la homeostasis se ve perturbada, como en casos de estrés, consumo de drogas (terapéuticas o de abuso), enfermedades infecciosas y...

  4. Sistemas territoriales de salud frente al sistema general de seguridad social en salud de Colombia

    Directory of Open Access Journals (Sweden)

    Jahir Alexander Gutiérrez Ossa

    2014-06-01

    Full Text Available Introducción: El artículo expone los elementos y fundamentos que podrían avalar la generación de sistemas de seguridad social en salud territorial, en complementación con el sistema general preexistente. Materiales y Métodos: La eclosión generalizada en los sistemas de salud, implica la revisión de los modelos propuestos de carácter central y territorial. El análisis económico institucional, permite analizar las condiciones que tienen los sistemas generales para impactar en los esquemas territoriales. Resultados: Es el momento preciso, para que el sistema general en Colombia responda efectivamente en la materia, y que tanto ello, podría dar cuenta de la capacidad sistémica del mismo en el escenario territorial. Discusión: Es importante, que las gobernaciones y municipios planteen el alcance de dicha iniciativa. El Sistema General de Seguridad Social en Salud en Colombia, gira en torno a modelos y no a la concepción de sistema de salud efectivamente. Conclusiones: La definición de sistema de salud está opacando la atención para definir lo que implica efectivamente la salud, independiente de cualquier sistema al que se pretenda apuntar al final. Palabras clave: Cobertura de Servicios Públicos de Salud, Evaluación en Salud, Sistemas Multiinstitucionales, Sistemas Nacionales de Salud, Políticas Públicas de Salud. (Fuente: DeCS BIREME. Cómo citar este artículo: Gutiérrez Ossa JA, Restrepo Avendaño RD. Sistemas territoriales de salud frente al sistema general de seguridad social en salud de Colombia. Rev Cuid. 2014; 5(1: 623-32.

  5. Clean Energy—The Ultimate Solution

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Major economies in the world have raised various proposals to reduce carbon emissions by applying clean energies in a bid to tackle climate change. As a major consumer of coal, China is facing mounting pressure, and experts are wrangling about which clean energy should come first on the government agenda. To get a closer look at the current situation in China, Beijing Review reporter Liu Yunyun sat down with Zhou Dadi, Director General Emeritus of the Energy Research Institute of the National Development and Reform Commission, who shared his insights on clean energy. Edited excerpts follow:

  6. Physical cleaning of high carbon fly ash

    Energy Technology Data Exchange (ETDEWEB)

    Gray, McMahan L.; Champagne, Kenneth J.; Soong, Yee; Killmeyer, Richard P. [National Energy Technology Laboratory, US Department of Energy, P.O. Box 10940, Cochran Mills Roads, 15236 Pittsburgh, PA (United States); Maroto-Valer, M. Mercedes; Andresen, John M. [The Energy Institute, The Pennsylvania State University, 405 Academic Activities Building, 16802-2308 University Park, PA (United States); Ciocco, Michael V.; Zandhuis, Paul H. [Parson Project Services Inc, National Energy Technology Laboratory, P.O. Box 618, 15129 Library, Pittsburgh, PA (United States)

    2002-04-20

    An industrial fly ash sample was cleaned by three different processes, which were triboelectrostatic separation, ultrasonic column agglomeration, and column flotation. The unburned carbon concentrates were collected at purities ranging up to 62% at recoveries of 62%. In addition, optical microscopy studies were conducted on the final carbon concentrates to determine the carbon forms (inertinite, isotropic coke and anisotropic coke) collected from these various physical-cleaning processes. The effects of the various cleaning processes on the production of different carbon forms from high carbon fly ashes will be discussed.

  7. Abort Gap Cleaning for LHC Run 2

    Energy Technology Data Exchange (ETDEWEB)

    Uythoven, Jan [CERN; Boccardi, Andrea [CERN; Bravin, Enrico [CERN; Goddard, Brennan [CERN; Hemelsoet, Georges-Henry [CERN; Höfle, Wolfgang [CERN; Jacquet, Delphine [CERN; Kain, Verena [CERN; Mazzoni, Stefano [CERN; Meddahi, Malika [CERN; Valuch, Daniel [CERN; Gianfelice-Wendt, Eliana [Fermilab

    2014-07-01

    To minimize the beam losses at the moment of an LHC beam dump the 3 μs long abort gap should contain as few particles as possible. Its population can be minimised by abort gap cleaning using the LHC transverse damper system. The LHC Run 1 experience is briefly recalled; changes foreseen for the LHC Run 2 are presented. They include improvements in the observation of the abort gap population and the mechanism to decide if cleaning is required, changes to the hardware of the transverse dampers to reduce the detrimental effect on the luminosity lifetime and proposed changes to the applied cleaning algorithms.

  8. CO2 (dry ice) cleaning system

    Science.gov (United States)

    Barnett, Donald M.

    1995-03-01

    Tomco Equipment Company has participated in the dry ice (solid carbon dioxide, CO2) cleaning industry for over ten years as a pioneer in the manufacturer of high density, dry ice cleaning pellet production equipment. For over four years Tomco high density pelletizers have been available to the dry ice cleaning industry. Approximately one year ago Tomco introduced the DI-250, a new dry ice blast unit making Tomco a single source supplier for sublimable media, particle blast, cleaning systems. This new blast unit is an all pneumatic, single discharge hose device. It meters the insertion of 1/8 inch diameter (or smaller), high density, dry ice pellets into a high pressure, propellant gas stream. The dry ice and propellant streams are controlled and mixed from the blast cabinet. From there the mixture is transported to the nozzle where the pellets are accelerated to an appropriate blasting velocity. When directed to impact upon a target area, these dry ice pellets have sufficient energy to effectively remove most surface coatings through dry, abrasive contact. The meta-stable, dry ice pellets used for CO2 cleaning, while labeled 'high density,' are less dense than alternate, abrasive, particle blast media. In addition, after contacting the target surface, they return to their equilibrium condition: a superheated gas state. Most currently used grit blasting media are silicon dioxide based, which possess a sharp tetrahedral molecular structure. Silicon dioxide crystal structures will always produce smaller sharp-edged replicas of the original crystal upon fracture. Larger, softer dry ice pellets do not share the same sharp-edged crystalline structures as their non-sublimable counterparts when broken. In fact, upon contact with the target surface, dry ice pellets will plastically deform and break apart. As such, dry ice cleaning is less harmful to sensitive substrates, workers and the environment than chemical or abrasive cleaning systems. Dry ice cleaning system

  9. Abort Gap Cleaning for LHC Run 2

    CERN Document Server

    Uythoven, J; Bravin, E; Goddard, B; Hemelsoet, GH; Höfle, W; Jacquet, D; Kain, V; Mazzoni, S; Meddahi, M; Valuch, D

    2015-01-01

    To minimise the beam losses at the moment of an LHC beam dump the 3 μs long abort gap should contain as few particles as possible. Its population can be minimised by abort gap cleaning using the LHC transverse damper system. The LHC Run 1 experience is briefly recalled; changes foreseen for the LHC Run 2 are presented. They include improvements in the observation of the abort gap population and the mechanism to decide if cleaning is required, changes to the hardware of the transverse dampers to reduce the detrimental effect on the luminosity lifetime and proposed changes to the applied cleaning algorithms.

  10. Limpeza da superfície de corte de rebolos por um sistema de ar comprimido na retificação cilíndrica externa de mergulho de materiais cerâmicos refrigerados com a técnica da mínima quantidade de lubrificante (MQL Grinding wheel surface cleaning using a compressed air system, in external plunge grinding of ceramics using the minimum quantity lubricant (MQL technique

    Directory of Open Access Journals (Sweden)

    E. C. Bianchi

    2012-06-01

    to diminish the amounts applied, due to some problems it may cause. The cost of the final product enhances considerably with the application of cutting fluids; they are environmentally hazardous substances, and the cause of many illnesses to the people involved. In this case, industries, universities and research centers are prompted to research alternative methods which are less harmful to the environment. Between these arises the minimum quantity lubricant (MQL technique, however having also its disadvantages, like the formation of a grout on wheel surface, which generates higher surface roughness on the workpiece. Aiming to minimize the problems concerning this grout, compressed air jets can be applied in order to clean the abrasive tool, which is the subject of the present work. This study aims to analyze some output variables of the external plunge grinding as surface roughness and roundness errors. Using the obtained results, it is intended to study MQL technique, aiming its improvement through the surface cleaning of the grinding wheel by compressed air jets.

  11. SCODA para el Desarrollo de Sistemas Multiagente

    Directory of Open Access Journals (Sweden)

    Jesús A. Román

    2011-12-01

    Full Text Available El planteamiento de implementar sistemas multiagente de forma que puedan reutilizarse con distintos objetivos, dota a los desarrolladores de una metodología más eficaz en sus fines. Este artículo presenta SCODA, una arquitectura basada en cinco principios: estandaridad, especialización, facilidad de implementación, reutilización y computación distribuida. SCODA pretende facilitar el desarrollo de sistemas multiagente, basándose en el concepto de pequeños grupos de agentes denominados Comunidades Inteligentes Especializadas (CIE. Las CIE cuentan con funcionalidades específicas que permiten llevar a cabo la implementación de sistemas multiagente de forma escalable, dentro del marco de SCODA, pudiendo ser reutilizadas en diversos desarrollos.

  12. Contexto General de los Sistemas Agrarios

    Directory of Open Access Journals (Sweden)

    Vélez Escobar Norberto

    1989-12-01

    Full Text Available Esta ponencia introdujo y delimitó el campo de trabajo para el panel: Formas o Sistemas de Producción Agraria. En ella se presentó y discutió la definición del concepto de FORMA DE PRODUCCION e igualmente planteó la taxonomía más general o "agrupamientos" de los sistemas de producción agraria en Colombia. Se identificaron cinco grupos de formas, en proceso de estructuración, empresariales, campesinas, de economía natural y experimentales; y a continuación se caracterizó y explicó cada uno de los cinco agrupamientos. La ponencia terminó sustentando la validez del trabajo académico basado en el enfoque de sistemas y presentó la evolución reciente de esta forma de trabajo en la Universidad Nacional, Seccional Medellín.

  13. Noise control considerations for patient rooms

    Science.gov (United States)

    Davenny, Benjamin

    2005-09-01

    The patient room envelope is a path between outside noise sources and the patient receiver. Within the patient room there are several sources including televisions, clinical monitor alarms, medical pumps, etc. Noise control in patient rooms relies on a combination of the sound transmission loss of the patient room envelope and the level of background sound at the patient's head. Guidelines published by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), American Institute of Architects (AIA), and the U.S. Department of Defense for background noise and sound transmission loss in patient rooms will be discussed. Appropriate levels, spectra, and temporal characteristics of background sound at the patient head location may be helpful in raising the threshold of annoying sounds. Various means of personal hearing protection for patients will be discussed. Sound-pressure levels in patient rooms reported in previous literature will also be discussed.

  14. From Baltic rooms to conference rooms: my jouney with data

    Science.gov (United States)

    Kozlowski, W. A.

    2015-12-01

    From time spent in murky, mosquito-filled mangrove swamps searching for fiddler crabs, to being transported off ships in webbed "man-baskets" on inky-black winter mornings to sample sea ice, to teaching rooms full of students the benefits of information organization, the wonders of science have long shaped my career path. Regardless of surroundings, the driving factor has always been a desire to learn new skills, then try to figure out how to use them to make work easier or more efficient for myself and hopefully others. Somewhere along the way, I've switched from doing it primarily for my "own" research projects, to a focus on helping others with theirs. Like many in this field, my route to a career in data science has influenced how I do my work. Along the way I've carried skills with me but also learned a few things that have made my journey both practical and fun. In this presentation, I'll discuss a few key factors that contribute to my current efforts as a data curation specialist in a research library, including communication (translation of "library" concepts to "science" concepts and vice versa), flexibility (ability to accomodate ideas, pace and values of those I'm working with), and prioritization (learning to balance what's valuable to researchers with principles important to libraries, curators, repositories, archives and other groups with which I interact).

  15. The Value of Clean Air

    Science.gov (United States)

    Shindell, D. T.

    2014-12-01

    How can society place a value on clean air? I present a multi-impact economic valuation framework called the Social Cost of Atmospheric Release (SCAR) that extends the Social Cost of Carbon (SCC) used previously for carbon dioxide (CO2) to a broader range of pollutants and impacts. Values consistently incorporate health impacts of air quality along with climate damages. The latter include damages associated with aerosol-induced hydrologic cycle changes that lead to net climate benefits when reducing cooling aerosols. Evaluating a 1% reduction in current global emissions, benefits with a high discount rate are greatest for reductions of co-emitted products of incomplete combustion (PIC), followed by sulfur dioxide (SO2), nitrogen oxides (NOx) and then CO2, ammonia and methane. With a low discount rate, benefits are greatest for CO2 reductions, though the sum of SO2, PIC and methane is substantially larger. These results suggest that efforts to mitigate atmosphere-related environmental damages should target a broad set of emissions including CO2, methane and aerosol/ozone precursors. Illustrative calculations indicate environmental damages are 410-1100 billion yr-1 for current US electricity generation ( 19-46¢ per kWh for coal, 4-24¢ for gas) and 3.80 (-1.80/+2.10) per gallon of gasoline ($4.80 (-3.10/+3.50) per gallon for diesel). These results suggest that total atmosphere-related environmental damages plus generation costs are much greater for coal-fired power than other types of electricity generation, and that damages associated with gasoline vehicles substantially exceed those for electric vehicles.

  16. Thermal expansion of ceramics around room temperature

    OpenAIRE

    橋本, 忍; 安達, 信泰; 太田, 敏孝; 宮崎, 英敏; ハシモト, シノブ; アダチ, ノブヤス; オオタ, トシタカ; Hashimoto, Shinobu; Adachi, Nobuyasu; Ota, Toshitaka

    2010-01-01

    Thermal expansion of some ceramics, polymers and metals was measured by dilatometer around room temperature (from -140℃to +200℃), and compared with thermal expansion in the high temperature region. The CTE (coefficient of thermal expansion)of almost ceramics changed drastically between room temperature and high temperature region. On the other hand, the CTE ofmetals did not change between room temperature and high temperature region. The difference on thermal expansion betweenceramics and met...

  17. Psiconeuroinmunología: Conexiones entre sistema nervioso y sistema inmune

    Directory of Open Access Journals (Sweden)

    García López, Luis Joaquín

    2008-09-01

    Full Text Available La psiconeuroinmunología es una nueva parcela de la ciencia que apenas lleva tres décadas, pero que en los últimos años ha sido objeto de una enorme atención por diversos grupos de investigación. El articulo pretende exponer brevemente cómo están organizados los sistemas inmune y neuroendocrino, para después presentar los hallazgos que hasta el momento intentan dar explicación de las relaciones entre ambos con el sistema nervioso, así como las influencias de unos sobre otros, más concretamente expresar la relación entre los tres sistemas responsables de la defensa del organismo y, más ampliamente, de su mantenimiento homeostático. Cuando se trata de amenazas, el sistema nervioso central tiene que decidir qué sistema se pone en marcha, el sistema de estrés como energía para el ataque o la huida (un animal que nos quiere atacar, el sistema inmune para neutralizar el antígeno (un virus que nos quiere atacar o ambos (la energía es necesaria también para el sistema inmune. Como parece ser que en muchas ocasiones la depresión aparece tras los esfuerzos infructuosos de puesta en marcha de estrategias de afrontamiento, también hemos repasado sucintamente algunas investigaciones que relacionan al sistema inmune con la depresión, así como con los trastornos del sueño. Se finaliza con las aportaciones que la psicología puede ofrecer a nivel terapéutico.

  18. El Derecho Administrativo del Sistema Comunitario Andino

    Directory of Open Access Journals (Sweden)

    Jorge Enrique Santos Rodríguez

    2013-12-01

    Full Text Available Una de las tendencias contemporáneas del Derecho Administrativo es el reconocimiento de su existencia más allá de las fronteras de un Estado. Bajo esa premisa, se busca demostrar que en la Comunidad Andina de Naciones se configuran los elementos suficientes para afirmar que existe un Derecho Administrativo Comunitario Andino, en la medida en que de las normas andinas se desprende la existencia de una función administrativa andina, una organización administrativa al seno del Sistema Andino de Integración, un sistema de fuentes administrativas andina y un contencioso administrativo comunitario.

  19. Sistemas dinámicos planos

    OpenAIRE

    Torres Henao, Jorge Alberto

    2013-01-01

    Resumen: En el documento se hace una presentación de los sistemas dinámicos planos, en particular los continuos provenientes de ecuaciones diferenciales ordinarias de segundo orden o de sistemas de ecuaciones diferenciales simultáneas de primer orden. Se introduce la teoría con ejemplos cuidadosamente seleccionados que hacen especial énfasis en las propiedades tipológicas de las soluciones y se dedica toda una sección a la obtención de una demostración del Teorema de Poincaré-Bendixson. La pa...

  20. Caos e simetrias em sistemas quanticos

    OpenAIRE

    Righi, Assis Francisco Moro

    1989-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Ciencias Fisicas e Matematicas Neste trabalho são investigadas algumas propriedades espectrais de dois sistemas quânticos não separáveis: o hamiltoniano de Henon-Heiles e o oscilador harmônico bidimensional com perturbação sugerida por Pullen e Edmonds do tipo x2y2. Foi confirmado que estes sistemas apresentam uma transição do comportamento quântico regular para o comportamento quântico irregular, também chamado caó...

  1. Ortogonalidad y capacidad en sistemas MIMO masivo

    OpenAIRE

    Romero Ibáñez, Irene

    2014-01-01

    La tecnología MIMO constituye un antes y un después en los sistemas de comunicaciones inalámbricas. Esta tecnología ofrece multitud de beneficios que nos acercan a cumplir con los desafíos impuestos por las limitaciones en un canal inalámbrico así como por las restricciones de nuestros recursos o el espacio físico ocupado por las antenas, entre otros. Además de explotar tanto la dimensión temporal como la frecuencial en sistemas inalámbricos convencionales con una única antena, las posibilida...

  2. As unidades fundamentais do sistema internacional (SI)

    OpenAIRE

    2002-01-01

    Nos últimos anos de docência no Instituto Superior de Engenharia de Lisboa, redigimos, para uso dos alunos, um pequeno memorando sobre as unidades fundamentais do Sistema Internacional - as unidade de base -, tendo em vista, principalmente, a correção da escrita das ditas unidades, seus múltiplos e seus submúltiplos. Esse escasso conjunto de menos de meia dúzia de páginas foi sendo gradualmente alargado, de forma a incluir referência aos sistemas de unidades primitivos e sua evolução, como ta...

  3. Algoritmos array para filtragem de sistemas lineares

    OpenAIRE

    Gildson Queiroz de Jesus

    2007-01-01

    Esta dissertação desenvolve filtro de informação, algoritmos array para estimador do erro médio mínimo quadrático para sistemas lineares sujeitos a saltos Markovianos e algoritmos array rápidos para filtragem de sistemas singulares convencionais. Exemplos numéricos serão apresentados para mostrarem as vantagens dos algoritmos array deduzidos. Parte dos resultados obtidos nesta pesquisa serão publicados no seguinte artigo: Terra et al. (2007). Terra, M. H., Ishihara, J. Y. and Jesus, G. Q. (20...

  4. Sistema de salud de Perú

    OpenAIRE

    2011-01-01

    En este trabajo se describen las condiciones generales de salud de la población peruana y, con mayor detalle, el sistema peruano de salud: su estructura y cobertura, sus fuentes de financiamiento, los recursos físicos, materiales y humanos con los que cuenta, y las actividades de rectoría que en él se desarrollan. Asimismo se discute el estado en el que se encuentran la generación de información y la investigación, y la participación de los ciudadanos en la gestión y evaluación del sistema. E...

  5. Sistema de salud de México

    OpenAIRE

    Octavio Gómez Dantés; Sergio Sesma; Victor M. Becerril; Felicia M. Knaul; Héctor Arreola; Julio Frenk

    2011-01-01

    En este trabajo se describe el sistema mexicano de salud. En la primera parte se discuten las condiciones de salud de la población mexicana, con énfasis en los padecimientos emergentes que constituyen las principales causas de muerte, diabetes, enfermedades isquémicas del corazón, padecimientos cerebrovasculares y cáncer. En la segunda parte se describe la estructura básica del sistema, las instituciones que lo conforman, la población a la que cubre, los beneficios que reciben los afiliados d...

  6. El sistema linfático: el gran olvidado del sistema circulatorio

    OpenAIRE

    2014-01-01

    En el presente artículo se analizan los modelos mentales y las concepciones alternativas que tienen los estudiantes de distintos niveles educativos sobre el sistema linfático como componente del sistema circulatorio. Se establece una relación con las dificultades que se salvaron a lo largo de la historia en la adquisición de dichos conocimientos. Los resultados muestran una deficiente relación entre los sistemas linfáticos y sanguíneos, una falta de conocimientos tanto anatómicos ...

  7. El sistema linfático: el gran olvidado del sistema circulatorio.

    OpenAIRE

    Olmos Martínez, Susana; Gavidia Catalán, Valentín

    2014-01-01

    En el presente artículo se analizan los modelos mentales y las concepciones alternativas que tienen los estudiantes de distintos niveles educativos sobre el sistema linfático como componente del sistema circulatorio. Se establece una relación con las dificultades que se salvaron a lo largo de la historia en la adquisición de dichos conocimientos. Los resultados muestran una deficiente relación entre los sistemas linfáticos y sanguíneos, una falta de conocimientos tanto anatómicos como fisioló...

  8. Clean Technology Evaluation & Workforce Development Program

    Energy Technology Data Exchange (ETDEWEB)

    Patricia Glaza

    2012-12-01

    The overall objective of the Clean Technology Evaluation portion of the award was to design a process to speed up the identification of new clean energy technologies and match organizations to testing and early adoption partners. The project was successful in identifying new technologies targeted to utilities and utility technology integrators, in developing a process to review and rank the new technologies, and in facilitating new partnerships for technology testing and adoption. The purpose of the Workforce Development portion of the award was to create an education outreach program for middle & high-school students focused on clean technology science and engineering. While originally targeting San Diego, California and Cambridge, Massachusetts, the scope of the program was expanded to include a major clean technology speaking series and expo as part of the USA Science & Engineering Festival on the National Mall in Washington, D.C.

  9. Clean Cities Annual Metrics Report 2008

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, C.; Bergeron, P.

    2009-09-01

    This report summarizes the Department of Energy's Clean Cities coalition accomplishments in 2008, including petroleum displacement data, membership, funding, sales of alternative fuel blends, deployment of AFVs and HEVs, idle reduction initiatives, and fuel economy activities.

  10. Clean Cities Annual Metrics Report 2009 (Revised)

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, C.

    2011-08-01

    Document provides Clean Cities coalition metrics about the use of alternative fuels; the deployment of alternative fuel vehicles, hybrid electric vehicles (HEVs), and idle reduction initiatives; fuel economy activities; and programs to reduce vehicle miles driven.

  11. Clean Air Markets - Compliance Query Wizard

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Compliance Query Wizard is part of a suite of Clean Air Markets-related tools that are accessible at http://ampd.epa.gov/ampd/. The Compliance module provides...

  12. Supporting Clean Energy Development in Swaziland

    Energy Technology Data Exchange (ETDEWEB)

    2016-04-01

    Swaziland, a country largely dependent on regional fossil fuel imports to meet power needs, is vulnerable to supply changes and price shocks. To address this challenge, the country's National Energy Policy and Implementation Strategy prioritizes actions to enhance energy independence through scaling up renewable energy and energy efficiency. With approximately 70 percent of the country lacking electricity, Swaziland is also strongly committed to expanding energy access to support key economic and social development goals. Within this context, energy security and energy access are two foundational objectives for clean energy development in Swaziland. The partnership between the Swaziland Energy Regulatory Authority and the Clean Energy Solutions Center led to concrete outcomes to support clean energy development in Swaziland. Improving renewable energy project licensing processes will enable Swaziland to achieve key national objectives to expand clean energy access and transition to greater energy independence.

  13. Clean Air Markets - Quick Facts and Trends

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Quick Facts and Trends module is part of a suite of Clean Air Markets-related tools that are accessible at http://camddataandmaps.epa.gov/gdm/index.cfm. The...

  14. Clean Air Markets - Allowances Query Wizard

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Allowances Query Wizard is part of a suite of Clean Air Markets-related tools that are accessible at http://camddataandmaps.epa.gov/gdm/index.cfm. The Allowances...

  15. Constrained hyperbolic divergence cleaning in smoothed particle magnetohydrodynamics with variable cleaning speeds

    CERN Document Server

    Tricco, Terrence S; Bate, Matthew R

    2016-01-01

    We present an updated constrained hyperbolic/parabolic divergence cleaning algorithm for smoothed particle magnetohydrodynamics (SPMHD) that remains conservative with wave cleaning speeds which vary in space and time. This is accomplished by evolving the quantity $\\psi / c_h$ instead of $\\psi$. Doing so allows each particle to carry an individual wave cleaning speed, $c_h$, that can evolve in time without needing an explicit prescription for how it should evolve, preventing circumstances which we demonstrate could lead to runaway energy growth related to variable wave cleaning speeds. This modification requires only a minor adjustment to the cleaning equations and is trivial to adopt in existing codes. Finally, we demonstrate that our constrained hyperbolic/parabolic divergence cleaning algorithm, run for a large number of iterations, can reduce the divergence of the field to an arbitrarily small value, achieving $\

  16. Constrained hyperbolic divergence cleaning in smoothed particle magnetohydrodynamics with variable cleaning speeds

    Science.gov (United States)

    Tricco, Terrence S.; Price, Daniel J.; Bate, Matthew R.

    2016-10-01

    We present an updated constrained hyperbolic/parabolic divergence cleaning algorithm for smoothed particle magnetohydrodynamics (SPMHD) that remains conservative with wave cleaning speeds which vary in space and time. This is accomplished by evolving the quantity ψ /ch instead of ψ. Doing so allows each particle to carry an individual wave cleaning speed, ch, that can evolve in time without needing an explicit prescription for how it should evolve, preventing circumstances which we demonstrate could lead to runaway energy growth related to variable wave cleaning speeds. This modification requires only a minor adjustment to the cleaning equations and is trivial to adopt in existing codes. Finally, we demonstrate that our constrained hyperbolic/parabolic divergence cleaning algorithm, run for a large number of iterations, can reduce the divergence of the magnetic field to an arbitrarily small value, achieving ∇ ṡ B = 0 to machine precision.

  17. Clean and Highly Efficient Utilization of Coal

    Institute of Scientific and Technical Information of China (English)

    WANG Jianguo; YANG Li

    2011-01-01

    @@ Clean and highly efficient utilization of coal is an important scientific and technological issue.As the petroleum resource decreases but its consumption increases, all of the countries in the world have to face the big issue of sustainable development of energy and economy and protection of environment.Therefore, study on clean coal technology (CCT) has attracted much attention and become one of important themes of energy research.

  18. Recent Advances in Precombustion Coal Cleaning Processes

    Institute of Scientific and Technical Information of China (English)

    Shiao-HungChiang; DaxinHe

    1994-01-01

    The mineral matter in coal constitutes a major impediment to the direct use of coal in power plants.A concerted effort has been mounted to reduce the ash/sulfur contents in product coal to meet the ever more stringent environmental regulations.In recent years,significant advances have taken place in fine coal cleaning technologies.A review of recent developments in aveanced physical,chemical and biological processes for deep-cleaning of fine coal is presented.

  19. State perspectives on clean coal technology deployment

    Energy Technology Data Exchange (ETDEWEB)

    Moreland, T. [State of Illinois Washington Office, Washington, DC (United States)

    1997-12-31

    State governments have been funding partners in the Clean Coal Technology program since its beginnings. Today, regulatory and market uncertainties and tight budgets have reduced state investment in energy R and D, but states have developed program initiatives in support of deployment. State officials think that the federal government must continue to support these technologies in the deployment phase. Discussions of national energy policy must include attention to the Clean Coal Technology program and its accomplishments.

  20. Clean Cities Technical Assistance Project (Tiger Teams)

    Energy Technology Data Exchange (ETDEWEB)

    2016-02-01

    This two-page fact sheet describes Clean Cities' technical assistance (Tiger Teams) capabilities and projects, both completed and ongoing. Tiger Teams are a critical element of the Clean Cities program, providing on-the-ground consultation to help inform program strategies. The knowledge Tiger Team experts gain from these experiences often helps inform other alternative fuels activities, such as needed research, codes and standards revisions, and new training resources.

  1. [Management for the operating room].

    Science.gov (United States)

    Tschudi, O; Schüpfer, G

    2015-03-01

    Business companies, which in the current times also includes hospitals, must create customer benefits and as a prerequisite for this must sustainably generate profits. Management in the world of business means the formation and directing of a company or parts of a company on a permanent basis, whereby management in this context is not exercising power but function. This concept of management is exemplary developed in this article for the important services sector of the operating room (OR) and individual functions, such as resource control, capacity planning and materials administration are presented in detail. Some OR-specific management challenges are worked out. From this it becomes clear that the economic logic of the most efficient implementation possible is not a contradiction of medical ethics, enabling the most effective treatment possible for patients while safeguarding the highest possible levels of safety and quality. The article aims to build a bridge for medical specialists to the language and world of commerce, emphasizing the profession-based competence and hopefully to arouse interest to go into more detail.

  2. Topological Insulators at Room Temperature

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Haijun; /Beijing, Inst. Phys.; Liu, Chao-Xing; /Tsinghua U., Beijing; Qi, Xiao-Liang; /Stanford U., Phys. Dept.; Dai, Xi; Fang, Zhong; /Beijing, Inst. Phys.; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-03-25

    Topological insulators are new states of quantum matter with surface states protected by the time-reversal symmetry. In this work, we perform first-principle electronic structure calculations for Sb{sub 2}Te{sub 3}, Sb{sub 2}Se{sub 3}, Bi{sub 2}Te{sub 3} and Bi{sub 2}Se{sub 3} crystals. Our calculations predict that Sb{sub 2}Te{sub 3}, Bi{sub 2}T e{sub 3} and Bi{sub 2}Se{sub 3} are topological insulators, while Sb{sub 2}Se{sub 3} is not. In particular, Bi{sub 2}Se{sub 3} has a topologically non-trivial energy gap of 0.3eV , suitable for room temperature applications. We present a simple and unified continuum model which captures the salient topological features of this class of materials. These topological insulators have robust surface states consisting of a single Dirac cone at the {Lambda} point.

  3. What is Clean Cities? October 2011 (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2011-10-01

    Brochure describes the Clean Cities program and includes the contact information for its 85 coalitions. Sponsored by the U.S. Department of Energy's (DOE) Vehicle Technologies Program (VTP), Clean Cities is a government-industry partnership that reduces petroleum consumption in the transportation sector. Clean Cities contributes to the energy, environmental, and economic security of the United States by supporting local decisions to reduce our dependence on imported petroleum. Established in 1993 in response to the Energy Policy Act (EPAct) of 1992, the partnership provides tools and resources for voluntary, community-centered programs to reduce consumption of petroleum-based fuels. In nearly 100 coalitions, government agencies and private companies voluntarily come together under the umbrella of Clean Cities. The partnership helps all parties identify mutual interests and meet the objectives of reducing the use of petroleum, developing regional economic opportunities, and improving air quality. Clean Cities deploys technologies and practices developed by VTP. These include idle-reduction equipment, electric-drive vehicles, fuel economy measures, and renewable and alternative fuels, such as natural gas, liquefied petroleum gas (propane), electricity, hydrogen, biofuels, and biogas. Idle-reduction equipment is targeted primarily to buses and heavy-duty trucks, which use more than 2 billion gallons of fuel every year in the United States while idling. Clean Cities fuel economy measures include public education on vehicle choice and fuel-efficient driving practices.

  4. Chemical-free cleaning using excimer lasers

    Science.gov (United States)

    Lizotte, Todd E.; O'Keeffe, Terence R.

    1996-04-01

    A critical requirement in many industrial processes is the cleaning of oils and grease, oxides, solvent residues, particles, thin films and other contaminants from surfaces. There is a particularly acute need in the electronics industry for cleaning semiconductor wafers and computer chips and in the metals industry for removing oxides and other contaminants. Cleaning traditionally is done by various wet chemical processes, almost all consuming large amounts of water and producing large amounts of hazardous wastes. To further complicate this, some of these cleaning agents and vast water consumption are undergoing stringent restrictions. The Radiance ProcessSM is a novel, patented Excimer Laser approach to dry surface cleaning. The process has removed particles from 80 microns to submicron sizes, paints, inks, oxides, fingerprints, hazes, parts of molecules and metallic ions in fingerprints. The process does not ablate, melt or damage the underlying surface. Micro-roughening on some Silicon and Gallium Arsenide is on the order of 1A or less. This paper will discuss the various applications with this process and the latest results from a beta wafer cleaning prototype test bed system that is being built under an EPA grant and joint partnership between Radiance Services Company, Neuman Micro Technologies, Inc. and the Microelectronics Research Laboratory.

  5. Clean fuel for demanding environmental markets

    Energy Technology Data Exchange (ETDEWEB)

    Josewicz, W.; Natschke, D.E. [Acurex Environmental Corp., Research Triangle Park, NC (United States)

    1995-12-31

    Acurex Environmental Corporation is bringing Clean Fuel to the environmentally demand Krakow market, through the cooperative agreement with the U.S. Department of Energy. Clean fuel is a proprietary clean burning coal-based energy source intended for use in stoves and hand stoked boilers. Clean Fuel is a home heating fuel that is similar in form and function to raw coal, but is more environmentally friendly and lower in cost. The heating value of Clean Fuel is 24,45 kJ/kg. Extensive sets of confirmation runs were conducted in the Academy of Mining and Metallurgy in the Krakow laboratories. It demonstrated up to 54 percent reduction of particulate matter emission, up to 35 percent reduction of total hydrocarbon emissions. Most importantly, polycyclic aromatic hydrocarbons (toxic and carcinogens compounds) emissions were reduced by up to 85 percent, depending on species measured. The above comparison was made against premium chunk coal that is currently available in Krakow for approximately $83 to 93/ton. Clean Fuel will be made available in Krakow at a price approximately 10 percent lower than that of the premium chunk coal.

  6. Research of laser cleaning technology for steam generator tubing

    Science.gov (United States)

    Hou, Suixa; Luo, Jijun; Xu, Jun; Yuan, Bo

    2010-10-01

    Surface cleaning based on the laser-induced breakdown of gas and subsequent shock wave generation can remove small particles from solid surfaces. Accordingly, several studies in steam generator tubes of nuclear power plants were performed to expand the cleaning capability of the process. In this work, experimental apparatus of laser cleaning was designed in order to clean heat tubes in steam generator. The laser cleaning process is monitored by analyzing acoustic emission signal experimentally. Experiments demonstrate that laser cleaning can remove smaller particles from the surface of steam generator tubes better than other cleaning process. It has advantages in saving on much manpower and material resource, and it is a good cleaning method for heat tubes, which can be real-time monitoring in laser cleaning process of heat tubes by AE signal. As a green cleaning process, laser cleaning technology in equipment maintenance will be a good prospect.

  7. Clean Production Management of Breweries: the realities of implementing clean production management in Tsingtao Brewery

    OpenAIRE

    Wang, Chaonan

    2011-01-01

    In recent years,China's beer industry has rapid growth,but because of high energy consumption and high emissions in the production process, its environmental pollution became more serious and aroused concern. Beer companies must promote management of clean production in the pursuit of economic benefits while addressing the pollution problems. Comparing to leading markets, China’s beer industry practiced clean production at later stage, the level of clean production management is still lower t...

  8. New bio-cleaning strategies on porous building materials affected by biodeterioration event

    Science.gov (United States)

    Valentini, Federica; Diamanti, Alessia; Palleschi, Giuseppe

    2010-09-01

    In this paper, a new bio-cleaning procedure based on the glucose oxidase (GOx) has been applied on the travertine and peperino substrata to remove the biological patina (i.e., biofilm). Glucose oxidase, used as a model enzyme system, is able to produce in situ H 2O 2 (the cleaning agent having oxidizing properties) by the enzymatic reaction at room temperature. The travertine and peperino samples came from the Villa Torlonia in Rome (Italy), and an analytical diagnosis on them was performed applying several analytical techniques, such as the differential interference contrast microscopy (DIC), the optical microscope (OM), the Fourier transform infrared spectroscopy (FT-IR) and the X-ray fluorescence (XRF) that evidence the presence of biofilms on the substrata. Better results were obtained on the travertine samples in terms of the cleaning efficiency and the absence of the etching effect on the surface, eventually induced by the peroxide molecule. These results could be explained in terms of the different porosities of the two kinds of stone materials, according to the BET data. A comparative study was also performed to validate the new bio-cleaning procedure, using both traditional approaches based on saturated (NH 4) 2CO 3 solution and EDTA in buffer solution and the enzyme lipase treatments. Among all, the cleaning procedure via GOx shows the best result, probably because the enzyme controls the concentration of the H 2O 2 in situ and also retains the H 2O 2 preferentially on the surface (where the biological patina is present) depending on the porosity of the substrata. A synergistic effect, with other enzymes such as lipase and protease, combined with the biocompatibility of the enzymatic treatments, could represent a new way for a higher cleaning efficiency to apply on different stone substrata.

  9. Estabilización robusta de sistemas lineales

    Directory of Open Access Journals (Sweden)

    Horacio Leyva Castellanos

    2013-12-01

    Full Text Available En este trabajo se muestra un conjunto de resultados que permiten abordar el problema de la estabilización robusta de una familia de sistemas lineales positivos. Se describen dos nuevas aplicaciones en la teoría de control positivo para sistemas compartimentales y se muestra la aplicación de un teorema de robustez para tales sistemas

  10. Cleaning and sanitation in the design and management of buildings. Counselling part no 5; Renhold og hygiene ved planlegging, utforming og drift av bygg. Veiledningshefte nr.5

    Energy Technology Data Exchange (ETDEWEB)

    Dahl, Paal Anders; Nilsen, Steinar K.; Sjoevold, Oddbjoern

    1999-02-01

    The report series ''Cleaning and sanitation in the design and management of buildings'' consists of twelve reports containing professional advice. The present report discusses the design of ventilation rooms and ventilation systems, heating- and electricity systems, sanitary installation, shafts etc., and directions on constructional matters. Legal aspects are also dealt with.

  11. Otimização da eficiência de limpeza em equipamento de beneficiamento de tomate de mesa Optimizing cleaning efficiency at a fresh market tomato packing line

    Directory of Open Access Journals (Sweden)

    Michele C. Silva

    2008-12-01

    Full Text Available A etapa de limpeza no sistema de beneficiamento do tomate de mesa é essencial para a aceitação do produto pelo consumidor, pois o grau de limpeza dos frutos está diretamente relacionado com a qualidade do produto. Entretanto, a etapa de lavagem, nos atuais equipamentos de limpeza, utilizada em unidades comerciais de beneficiamento, demanda volume excessivo de água, trazendo sérias preocupações ambientais. Este trabalho teve como objetivo comparar a eficiência de limpeza em dois sistemas, avaliando diferentes configurações operacionais relacionadas com a rotação de escovas, vazão do sistema e tempo de permanência do fruto sobre o jato. Comparou-se o sistema convencional utilizado em equipamentos comerciais com o sistema composto por um bocal de spray do tipo cone cheio. Os resultados demonstraram que a eficiência de limpeza não está diretamente relacionada com o volume de água utilizado, mas, sim, à pressão da água, associado ao tempo de permanência dos frutos e à rotação das escovas. Portanto, o uso de spray em sistemas de limpeza de frutos de tomate pode trazer benefícios tanto para a eficiência de limpeza, com incrementos superiores a 13%, como para o meio ambiente, trazendo redução no consumo de água.The post-harvesting cleaning process in fresh market tomatoes production is essential to the consumer acceptance, since the degree of dirtiness of the fruits is directly related to its quality. However, the washing stage of the cleaning process of commercial packinghouse demands an excessive water volume, bringing serious environmental concerns. The objective of this work was to compare the cleaning efficiency in two cleaning systems through the evaluation of different operational conditions of the cleaning process, related with the brush rotation, water flow and fruit standing time under the system. It was compared the conventional system utilized in commercial equipment with a system using commercial sprays. The

  12. Sistemas territoriales de salud frente al sistema general de seguridad social en salud de Colombia

    OpenAIRE

    2014-01-01

    Introducción: El artículo expone los elementos y fundamentos que podrían avalar la generación de sistemas de seguridad social en salud territorial, en complementación con el sistema general preexistente. Materiales y Métodos: La eclosión generalizada en los sistemas de salud, implica la revisión de los modelos propuestos de carácter central y territorial. El análisis económico institucional, permite analizar las condiciones que tienen los sistemas generales para impactar en los esquemas terri...

  13. ENEA presenta sistema ADS per trattamento scorie

    CERN Multimedia

    2002-01-01

    "Arriva il sistema Ads (Accelerator driven system) per il trattamento dei rifiuti radioattivi. Lo studio di fattibilita' per l' innovativa tecnologia, realizzato da un gruppo di lavoro congiunto Enea, Cea, Cern e Ansaldo, e' stato presentato oggi nel corso di un workshop presieduto dal premio Nobel per la fisica, Carlo Rubbia" (1/2 page).

  14. Sistema de Reinscripciones Vía Internet

    Directory of Open Access Journals (Sweden)

    Bertha Alicia Góngora Serna

    2005-01-01

    Full Text Available Este Proyecto se enfoca al diseño de una página Web para optimizar el sistema de reinscripciones del Instituto Tecnológico de Aguascalientes (ITA, la cual permite que los alumnos utilicen menos tiempo en el proceso de inscripción, además de facilitar que dicha actividad se pueda realizar desde su hogar. Para la elaboración de este proyecto se requirió de Tecnologías web como HTML, JavaScript y JSP. La información necesaria fue reutilizada de los datos que actualmente genera el sistema de reinscripciones. La investigación que se llevó a cabo para sustentar este proyecto indaga desde la historia del Internet, una explicación breve de las tecnologías Web requeridas, algunos sistemas de reinscripciones de diferentes escuelas de nivel superior del país, así como el funcionamiento básico del sistema actual de reinscripciones del ITA

  15. Elementos del sistema electoral del Congreso Mexicano

    Directory of Open Access Journals (Sweden)

    Aldo Medina García

    2013-08-01

    Full Text Available El presente artículo es un estudio de los componentes del sistema electoral, diseñado por el legislador mexicano para integrar al parlamento federal. Estudio desarrollado a sabiendas de la importancia que reviste el sistema electoral como un medio que permite a los ciudadanos convertir su voto expresado en las urnas en escaños a favor de determinado candidato o partido. En dicho análisis tomamos en cuenta la evolución constitucional del sistema electoral mexicano, la participación de las fuerzas minoritarias en la integración del Senado y de la Cámara de Diputados, la división que se hace del territorio en circunscripciones electorales, la barrera electoral que se fija a los partidos políticos para acceder a la representación en el Parlamento, la fórmula de asignación que se aplica a la votación obtenida, para finalmente concluir que el sistema electoral mexicano es esencialmente mayoritario aun cuando se vista de proporcional.

  16. Elementos del sistema electoral del Congreso Mexicano

    Directory of Open Access Journals (Sweden)

    Aldo Medina García

    2013-07-01

    Full Text Available El presente artículo es un estudio de los componentes del sistema electoral, diseñado por el legislador mexicano para integrar al parlamento federal. Estudio desarrollado a sabiendas de la importancia que reviste el sistema electoral como un medio que permite a los ciudadanos convertir su voto expresado en las urnas en escaños a favor de determinado candidato o partido. En dicho análisis tomamos en cuenta la evolución constitucional del sistema electoral mexicano, la participación de las fuerzas minoritarias en la integración del Senado y de la Cámara de Diputados, la división que se hace del territorio en circunscripciones electorales, la barrera electoral que se fija a los partidos políticos para acceder a la representación en el Parlamento, la fórmula de asignación que se aplica a la votación obtenida, para finalmente concluir que el sistema electoral mexicano es esencialmente mayoritario aun cuando se vista de proporcional.

  17. El Sistema and American Music Education

    Science.gov (United States)

    Lesniak, Melissa

    2012-01-01

    The brainchild of Jose Antonio Abreu, El Sistema, a music education program for aspiring orchestra musicians launched in Venezuela for students of limited means and now spreading to other parts of the world, has become a subject of interest to music teachers and teacher educators in North America. This article examines a bit of the program's…

  18. The Mini Dark Room from Holywell High

    Science.gov (United States)

    Lane, Frank

    2011-01-01

    The mini dark room from Holywell High School costs nothing to make and has a construction time of 10 min. In spite of progress, or perhaps because of it, light experiments often have to be performed without blackout. Put this idea into practice and each pupil can have a dark room--and best of all, it's free. In this article, the author describes…

  19. The Ethics of the Collegiate Locker Room

    Science.gov (United States)

    Roper, Larry D.

    2017-01-01

    Locker rooms are a fixture in the athletic culture of colleges and universities. Given the important roles those spaces play in the learning, growth, and development of student-athletes, collegiate leaders should consider how to influence locker room environments in positive ways.

  20. VRML Programs for Room Ventilation Applications

    DEFF Research Database (Denmark)

    Nielsen, Anker

    Cheap 3D models for visualization of room ventilation applications are now available. VRML (Virtu~l Reality Modelling Language) is found to be a good format to describe buildings, rooms and furniture. A 3D model in VRML can be placed on a World Wide Web (www) page and others can see the model...

  1. Evaporation Controlled Emission in Ventilated Rooms

    DEFF Research Database (Denmark)

    Topp, Claus; Nielsen, Peter V.; Heiselberg, Per

    -scale ventilated room when the emission is fully or partly evaporation controlled. The objective of the present research work has been to investigate the change of emission rates from small-scale experiments to full-scale ventilated rooms and to investigate the influence of the local air velocity field near...

  2. Mathematical Models for Room Air Distribution - Addendum

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    1982-01-01

    A number of different models on the air distribution in rooms are introduced. This includes the throw model, a model on penetration length of a cold wall jet and a model for maximum velocity in the dimensioning of an air distribution system in highly loaded rooms and shows that the amount of heat...

  3. Mathematical Models for Room Air Distribution

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    1982-01-01

    A number of different models on the air distribution in rooms are introduced. This includes the throw model, a model on penetration length of a cold wall jet and a model for maximum velocity in the dimensioning of an air distribution system in highly loaded rooms and shows that the amount of heat...

  4. Room Airflows with Low Reynolds Number Effects

    DEFF Research Database (Denmark)

    Topp, Claus; Nielsen, Peter V.; Davidson, Lars

    The behaviour of room airflows under fully turbulent conditions is well known both in terms of experiments and, numerical calculations by computational fluid dynamics (CFD). For room airflows where turbulence is not fully developed though, i.e. flows at low Reynolds numbers, the existing knowledge...

  5. 32 CFR 701.35 - Reading room.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 5 2010-07-01 2010-07-01 false Reading room. 701.35 Section 701.35 National Defense Department of Defense (Continued) DEPARTMENT OF THE NAVY UNITED STATES NAVY REGULATIONS AND... DOCUMENTS AFFECTING THE PUBLIC FOIA Definitions and Terms § 701.35 Reading room. Location where...

  6. Assigning treatment rooms at the Emergency Department

    NARCIS (Netherlands)

    Vrugt, van de Maartje; Boucherie, Richard J.

    2016-01-01

    Increasing efficiency at the Emergency Department (ED) reduces overcrowding. At the ED in typical Dutch Hospitals treatment rooms are mostly shared by two residents of different specialties: a Surgeon and an Internist. Each resident uses multiple rooms in parallel; while one patient awaits test resu

  7. New heuristics for planning operating rooms.

    NARCIS (Netherlands)

    Molina-Pariente, J.M.; Hans, E.W.; Framinan, J.M.; Gomez-Cia, T.

    2015-01-01

    We tackle the operating room planning problem of the Plastic Surgery and Major Burns Specialty of the University Hospital “Virgen del Rocio” in Seville (Spain). The decision problem is to assign an intervention date and an operating room to a set of surgeries on the waiting list, minimizing access t

  8. Sistemas ultrasónicos para la irrigación del sistema de conductos radiculares

    Directory of Open Access Journals (Sweden)

    A. García Delgado

    2014-04-01

    Full Text Available La eliminación de los restos de tejido pulpar vital y necrótico y de los microorganismos del sistema de conductos radiculares, es esencial para el éxito en endodoncia. La desinfección del canal radicular mediante la irrigación e instrumentación es el factor más importante en la prevención y tratamiento de la periodontitis apical. Al ser imposible con la instrumentación llegar a todas las áreas del sistema de conductos, la irrigación cobra especial importancia. Por este motivo, en la última década se han desarrollado una serie de sistemas de dispensación y agitación de irrigantes, tales como los ultrasonidos. En concreto, en este artículo de revisión se evalúa la información disponible de los diez últimos años sobre la efectividad de los sistemas ultrasónicos para eliminar bacterias, tejido pulpar, restos de dentina y barrillo dentinario, la capacidad de estos dispositivos para hacer que el irrigante penetre en el sistema de conductos radiculares y la seguridad en su uso. Los resultados de la revisión muestran que los sistemas ultrasónicos son más eficaces en el desbridamiento químico, biológico y físico del sistema de conductos radiculares que los sistemas de irrigación convencional, a la vez que son seguros.

  9. Room acoustics modeling using a point-cloud representation of the room geometry

    DEFF Research Database (Denmark)

    Markovic, Milos; Olesen, Søren Krarup; Hammershøi, Dorte

    2013-01-01

    within the room is simulated using a 3D point-cloud model to define a room geometry and a discrete ray-tracing method to calculate sound propagation paths within the enclosure. Based on a 3D point-cloud room model a voxel grid is created and each voxel has been assigned certain properties...

  10. Three-dimensional point-cloud room model for room acoustics simulations

    DEFF Research Database (Denmark)

    Markovic, Milos; Olesen, Søren Krarup; Hammershøi, Dorte

    2013-01-01

    acquisition and its representation with a 3D point-cloud model, as well as utilization of such a model for the room acoustics simulations. A room is scanned with a commercially available input device (Kinect for Xbox360) in two different ways; the first one involves the device placed in the middle of the room...

  11. Three-dimensional point-cloud room model in room acoustics simulations

    DEFF Research Database (Denmark)

    Markovic, Milos; Olesen, Søren Krarup; Hammershøi, Dorte

    2013-01-01

    acquisition and its representation with a 3D point-cloud model, as well as utilization of such a model for the room acoustics simulations. A room is scanned with a commercially available input device (Kinect for Xbox360) in two different ways; the first one involves the device placed in the middle of the room...

  12. High Efficiency Room Air Conditioner

    Energy Technology Data Exchange (ETDEWEB)

    Bansal, Pradeep [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2015-01-01

    This project was undertaken as a CRADA project between UT-Battelle and Geberal Electric Company and was funded by Department of Energy to design and develop of a high efficiency room air conditioner. A number of novel elements were investigated to improve the energy efficiency of a state-of-the-art WAC with base capacity of 10,000 BTU/h. One of the major modifications was made by downgrading its capacity from 10,000 BTU/hr to 8,000 BTU/hr by replacing the original compressor with a lower capacity (8,000 BTU/hr) but high efficiency compressor having an EER of 9.7 as compared with 9.3 of the original compressor. However, all heat exchangers from the original unit were retained to provide higher EER. The other subsequent major modifications included- (i) the AC fan motor was replaced by a brushless high efficiency ECM motor along with its fan housing, (ii) the capillary tube was replaced with a needle valve to better control the refrigerant flow and refrigerant set points, and (iii) the unit was tested with a drop-in environmentally friendly binary mixture of R32 (90% molar concentration)/R125 (10% molar concentration). The WAC was tested in the environmental chambers at ORNL as per the design rating conditions of AHAM/ASHRAE (Outdoor- 95F and 40%RH, Indoor- 80F, 51.5%RH). All these modifications resulted in enhancing the EER of the WAC by up to 25%.

  13. Perceptual effects in auralization of virtual rooms

    Science.gov (United States)

    Kleiner, Mendel; Larsson, Pontus; Vastfjall, Daniel; Torres, Rendell R.

    2002-05-01

    By using various types of binaural simulation (or ``auralization'') of physical environments, it is now possible to study basic perceptual issues relevant to room acoustics, as well to simulate the acoustic conditions found in concert halls and other auditoria. Binaural simulation of physical spaces in general is also important to virtual reality systems. This presentation will begin with an overview of the issues encountered in the auralization of room and other environments. We will then discuss the influence of various approximations in room modeling, in particular, edge- and surface scattering, on the perceived room response. Finally, we will discuss cross-modal effects, such as the influence of visual cues on the perception of auditory cues, and the influence of cross-modal effects on the judgement of ``perceived presence'' and the rating of room acoustic quality.

  14. Reduction of trapped ion anomalous heating by in situ surface plasma cleaning

    CERN Document Server

    McConnell, Robert; Chiaverini, John; Sage, Jeremy

    2015-01-01

    Anomalous motional heating is a major obstacle to scalable quantum information processing with trapped ions. While the source of this heating is not yet understood, several previous studies suggest that surface contaminants may be largely responsible. We demonstrate an improvement by a factor of four in the room-temperature heating rate of a niobium surface electrode trap by in situ plasma cleaning of the trap surface. This surface treatment was performed with a simple homebuilt coil assembly and commercially-available matching network and is considerably gentler than other treatments, such as ion milling or laser cleaning, that have previously been shown to improve ion heating rates. We do not see an improvement in the heating rate when the trap is operated at cryogenic temperatures, pointing to a role of thermally-activated surface contaminants in motional heating whose activity may freeze out at low temperatures.

  15. Indoor secondary pollutants from cleaning product and air freshener use in the presence of ozone

    DEFF Research Database (Denmark)

    Singer, B.C.; Coleman, B.K.; Destaillats, H.

    2006-01-01

    This study investigated the formation of secondary pollutants resulting from household product use in the presence of ozone. Experiments were conducted in a 50-m(3) chamber simulating a residential room. The chamber was operated at conditions relevant to US residences in polluted areas during warm......-oil air freshener (AFR) was operated for several days. Cleaning products were applied realistically with quantities scaled to simulate residential use rates. Concentrations of organic gases and secondary organic aerosol from the terpene-containing consumer products were measured with and without ozone...... than 100 mu g m(-3)) in some experiments. Ozone consumption and elevated hydroxyl radical concentrations persisted for 10-12 h following brief cleaning events, indicating that secondary pollutant production can persist for extended periods. (c) 2006 Elsevier Ltd. All rights reserved....

  16. He{sup +} scattering on clean and oxygen covered Al(1 1 1)

    Energy Technology Data Exchange (ETDEWEB)

    Kravchuk, T. [Laboratoire des Collisions Atomiques et Moleculaires, UMR CNRS, Universite Paris, Sud No. 8625, bat. 351, Universite Paris Sud, 91405 Orsay Cedex (France); Department of Chemistry, Technion - Israel Institute of Technology, Haifa 32000 (Israel); Esaulov, V.A. [Laboratoire des Collisions Atomiques et Moleculaires, UMR CNRS, Universite Paris, Sud No. 8625, bat. 351, Universite Paris Sud, 91405 Orsay Cedex (France)]. E-mail: esaulov@lcam.u-psud.fr; Hoffman, A. [Department of Chemistry, Technion - Israel Institute of Technology, Haifa 32000 (Israel); Monreal, R.C. [Departamento de Fisica Teorica de la Materia Condensada C-V, Universidad Autonoma de Madrid, Cantoblanco, E-28049 Madrid (Spain)

    2005-05-01

    We present results of a study of He{sup +} neutralisation on clean and oxygen covered Al(1 1 1). For clean Al(1 1 1) we find a small ion fraction which rapidly increases with increasing ion energy attaining about (0.4 {+-} 0.1)% at 4 keV. The overall behaviour is quite different from that observed on previously studied Ag surfaces and is attributed to reionisation processes, a conclusion supported by measurements using He atoms. When O{sub 2} is adsorbed onto Al(1 1 1) at room temperature, we observe a rapid increase in the ion fraction, which attains a broad plateau for exposures higher than about 50 L. Experiments with incident He atoms lead to an ion fraction that is smaller, indicating that in this case a substantial fraction of ions is due to survival of incident ions. We attribute these changes to a decrease of the Auger neutralisation rates on the oxidic surface.

  17. Clean Energy Solutions Center Services (Arabic Translation) (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2014-06-01

    This is the Arabic translation of the Clean Energy Solutions Center Services fact sheet. The Clean Energy Solutions Center (Solutions Center) helps governments, advisors and analysts create policies and programs that advance the deployment of clean energy technologies. The Solutions Center partners with international organizations to provide online training, expert assistance, and technical resources on clean energy policy.

  18. 33 CFR 157.220 - Dedicated clean ballast tanks: Standards.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Dedicated clean ballast tanks... CARRYING OIL IN BULK Dedicated Clean Ballast Tanks on Tank Vessels Design and Equipment § 157.220 Dedicated clean ballast tanks: Standards. (a) Cargo tanks that are designated as dedicated clean ballast...

  19. 33 CFR 157.218 - Dedicated clean ballast tanks: Alterations.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Dedicated clean ballast tanks... CARRYING OIL IN BULK Dedicated Clean Ballast Tanks on Tank Vessels General § 157.218 Dedicated clean ballast tanks: Alterations. The dedicated clean ballast tanks or equipment on a tank vessel that has...

  20. Sistemas de Cultivo de la Papa en Antioquia

    Directory of Open Access Journals (Sweden)

    Arango U. Ernesto

    1948-04-01

    Full Text Available Existen tres sistemas de cultivo entre los que se encuentran el sistema de tapado, sistema de destapado y el sistema de cepillado. Es necesario aclarar que la mayor utilidad que se obtiene con el sistema de cepillado sobre el de destapado, no compensa las pérdidas del suelo, puesto que este queda inutilizado por mucho tiempo, siendo necesario abandonarlo por varios años, antes de volver a lograr una cosecha remuneradora. Además se obtienen cosechas de papa demasiado bajas lo que merma considerablemente los rendimientos de la zona.

  1. A Portable, Pressure Driven, Room Temperature Nucleic Acid Extraction and Storage System for Point of Care Molecular Diagnostics

    OpenAIRE

    Byrnes, Samantha; Fan, Andy; Trueb, Jacob; Jareczek, Francis; Mazzochette, Mark; Sharon, Andre; Sauer-Budge, Alexis F.; Klapperich, Catherine M.

    2013-01-01

    Many new and exciting portable HIV viral load testing technologies are emerging for use in global medicine. While the potential to provide fast, isothermal, and quantitative molecular diagnostic information to clinicians in the field will soon be a reality, many of these technologies lack a robust front end for sample clean up and nucleic acid preparation. Such a technology would enable many different downstream molecular assays. Here, we present a portable system for centrifuge-free room tem...

  2. Ultrasonic cleaning of 3D printed objects and Cleaning Challenge Devices

    NARCIS (Netherlands)

    Verhaagen, Bram; Zanderink, Thijs; Fernandez Rivas, David

    2016-01-01

    We report our experiences in the evaluation of ultrasonic cleaning processes of objects made with additive manufacturing techniques, specifically three-dimensional (3D) printers. These objects need to be cleaned of support material added during the printing process. The support material can be remov

  3. Emerging forward osmosis (FO) technologies and challenges ahead for clean water and clean energy applications

    KAUST Repository

    Chung, Tai-Shung

    2012-08-01

    The purpose of this short review is to share our understanding and perspectives with the chemical, environmental, water and osmotic power communities on FO processes in order to conduct meaningful R & D and develop effective and sustainable FO technologies for clean water and clean energy. © 2012 Elsevier Ltd. All rights reserved.

  4. Laser cleaning treatment of burnt paintings

    Science.gov (United States)

    Antonopoulou-Athera, N.; Chatzitheodoridis, E.; Doulgerides, M.; Evangelatos, Ch.; Serafetinides, A. A.; Terlixi, A.

    2015-01-01

    Three samples taken from two paintings partly burned by fire are investigated for cleaning with lasers. The paintings belong to the collection of the National Gallery of Athens and were made by the great Greek artist Konstantinos Parthenis. To remove the damaged surface and achieve an acceptable restoration result, the optimum combination of fluence and wavelength are sought. Seven different wavelengths with a set of fluences where used, i.e., the five harmonics of a Nd:YAG laser (1064, 532, 355, 266, and 213 nm), a TEA 10.6 μm CO2 and a free running laser Er:YAG 2.94 μm. Characterization was performed prior and after the cleaning process by optical and electron microscopy and analysis (SEM/BSE EDS), as well as X-Ray Diffraction (XRD). The results of this work indicate that the wavelength in the visible spectrum (532 nm) with fluences between 0.1-0.4J/cm2 show the optimum cleaning. The optical microscopy observation shows that with these laser parameters the burnt layer was preferentially removed, exposing the original colors that Parthenis had used in these paintings. Electron microscopy imaging and chemical analysis revealed that the original texture and materials of these samples are preserved after irradiation. Since the damage varies along the surface of the painting, more experiments should be performed in order to find and optimize the full cleaning and characterization process for the homogeneous cleaning of the whole surface of the painting.

  5. Bayesian Data Cleaning for Web Data

    CERN Document Server

    Hu, Yuheng; Chen, Yi; Kambhampati, Subbarao

    2012-01-01

    Data Cleaning is a long standing problem, which is growing in importance with the mass of uncurated web data. State of the art approaches for handling inconsistent data are systems that learn and use conditional functional dependencies (CFDs) to rectify data. These methods learn data patterns--CFDs--from a clean sample of the data and use them to rectify the dirty/inconsistent data. While getting a clean training sample is feasible in enterprise data scenarios, it is infeasible in web databases where there is no separate curated data. CFD based methods are unfortunately particularly sensitive to noise; we will empirically demonstrate that the number of CFDs learned falls quite drastically with even a small amount of noise. In order to overcome this limitation, we propose a fully probabilistic framework for cleaning data. Our approach involves learning both the generative and error (corruption) models of the data and using them to clean the data. For generative models, we learn Bayes networks from the data. Fo...

  6. Northwest Region Clean Energy Application Center

    Energy Technology Data Exchange (ETDEWEB)

    Sjoding, David

    2013-09-30

    The main objective of the Northwest Clean Energy Application Center (NW CEAC) is to promote and support implementation of clean energy technologies. These technologies include combined heat and power (CHP), district energy, waste heat recovery with a primary focus on waste heat to power, and other related clean energy systems such as stationary fuel cell CHP systems. The northwest states include AK, ID, MT, OR, and WA. The key aim/outcome of the Center is to promote and support implementation of clean energy projects. Implemented projects result in a number of benefits including increased energy efficiency, renewable energy development (when using opportunity fuels), reduced carbon emissions, improved facility economics helping to preserve jobs, and reduced criteria pollutants calculated on an output-based emissions basis. Specific objectives performed by the NW CEAC fall within the following five broad promotion and support categories: 1) Center management and planning including database support; 2) Education and Outreach including plan development, website, target market workshops, and education/outreach materials development 3) Identification and provision of screening assessments & feasibility studies as funded by the facility or occasionally further support of Potential High Impact Projects; 4) Project implementation assistance/trouble shooting; and 5) Development of a supportive clean energy policy and initiative/financing framework.

  7. Sistema de inferencia difusa basado en relaciones Booleanas

    Directory of Open Access Journals (Sweden)

    Helbert Eduardo Espitia Cuchango

    2010-09-01

    Full Text Available Este documento describe la estructura de un sistema de inferencia difusa basado en relaciones booleanas. La teoría relacionada con lógica y conjuntos booleanos es una buena herramienta para el diseño de automatismos y sistemas digitales. Una variación con la cual se busca mejorar los sistemas basados en automatismos consiste en emplear conjuntos difusos en lugar de booleanos. Lo anterior se realiza con el objetivo de tener una acción continua en el actuador del automatismo. Al realizar esta variación y al aplicar la metodología de diseño de los sistemas de automatismos, aparecen los sistemas de inferencia difusa basados en relaciones booleanas.Aunque inicialmente esta propuesta se realizó considerando sistemas de automatismos, se observa que es posible extenderla a sistemas de inferencia difusa.

  8. Going clean: structure and dynamics of peptides in the gas phase and paths to solvation

    Science.gov (United States)

    Baldauf, Carsten; Rossi, Mariana

    2015-12-01

    The gas phase is an artificial environment for biomolecules that has gained much attention both experimentally and theoretically due to its unique characteristic of providing a clean room environment for the comparison between theory and experiment. In this review we give an overview mainly on first-principles simulations of isolated peptides and the initial steps of their interactions with ions and solvent molecules: a bottom up approach to the complexity of biological environments. We focus on the accuracy of different methods to explore the conformational space, the connections between theory and experiment regarding collision cross section evaluations and (anharmonic) vibrational spectra, and the challenges faced in this field.

  9. 76 FR 16646 - Circadian, Inc., Clean Energy Combustion, Inc. (n/k/a Clean Energy Combustion Systems, Inc...

    Science.gov (United States)

    2011-03-24

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION Circadian, Inc., Clean Energy Combustion, Inc. (n/k/a Clean Energy Combustion Systems, Inc... concerning the securities of Clean Energy Combustion, Inc. (n/k/a Clean Energy Combustion Systems,...

  10. 75 FR 11560 - Notice of Lodging of Consent Decree Under the Clean Water Act and Clean Air Act

    Science.gov (United States)

    2010-03-11

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE Notice of Lodging of Consent Decree Under the Clean Water Act and Clean Air Act Notice is hereby given that... violations of the Clean Water Act, 33 U.S.C. 1251 et seq., and the Clean Air Act, 42 U.S.C. 7401 et seq....

  11. 76 FR 40728 - Clean Air Act Advisory Committee (CAAAC); Request for Nominations for 2011 Clean Air Excellence...

    Science.gov (United States)

    2011-07-11

    ... AGENCY Clean Air Act Advisory Committee (CAAAC); Request for Nominations for 2011 Clean Air Excellence Awards Program AGENCY: Environmental Protection Agency (EPA). ACTION: Request for nominations for Clean Air Excellence Awards. ] SUMMARY: EPA established the Clean Air Excellence Awards Program in...

  12. 75 FR 35025 - Clean Air Act Advisory Committee (CAAAC); Request for Nominations for 2010 Clean Air Excellence...

    Science.gov (United States)

    2010-06-21

    ... AGENCY Clean Air Act Advisory Committee (CAAAC); Request for Nominations for 2010 Clean Air Excellence Awards Program AGENCY: Environmental Protection Agency (EPA). ACTION: Request for nominations for Clean Air Excellence Awards. SUMMARY: EPA established the Clean Air Excellence Awards Program in...

  13. Dynamic self-cleaning in gecko setae via digital hyperextension

    OpenAIRE

    Hu, Shihao; Lopez, Stephanie; Niewiarowski, Peter H.; Xia, Zhenhai

    2012-01-01

    Gecko toe pads show strong adhesion on various surfaces yet remain remarkably clean around everyday contaminants. An understanding of how geckos clean their toe pads while being in motion is essential for the elucidation of animal behaviours as well as the design of biomimetic devices with optimal performance. Here, we test the self-cleaning of geckos during locomotion. We provide, to our knowledge, the first evidence that geckos clean their feet through a unique dynamic self-cleaning mechani...

  14. Alternative Solvents and Technologies for Precision Cleaning of Aerospace Components

    Science.gov (United States)

    Grandelli, Heather; Maloney, Phillip; DeVor, Robert; Hintze, Paul

    2014-01-01

    Precision cleaning solvents for aerospace components and oxygen fuel systems, including currently used Vertrel-MCA, have a negative environmental legacy, high global warming potential, and have polluted cleaning sites. Thus, alternative solvents and technologies are being investigated with the aim of achieving precision contamination levels of less than 1 mg/sq ft. The technologies being evaluated are ultrasonic bath cleaning, plasma cleaning and supercritical carbon dioxide cleaning.

  15. Cleaning of South African coal using a compound dry cleaning apparatus

    Institute of Scientific and Technical Information of China (English)

    Li Haibin; Luo Zhenfu; Zhao Yuemin; Wu Wanchang; Zhang Cuiyu; Dai Ningning

    2011-01-01

    The compound dry cleaning principle is briefly described. A beneficiation test on South African coal was conducted using a model compound dry cleaning apparatus. Excellent results were obtained and the optimum operating parameters were determined. They are: an amplitude of 3.0 ram, a motor frequency of 47.5 Hz, an air volume of 50%, a transverse angle of 7°, and a longitudinal angle of -2°. These conditions yield a clean coal containing 11% ash and a coal production of 75%. The organic efficiency, η, is 95.86%. These results show that the South African coal can be separated effectively by compound dry cleaning, which will popularize the compound dry cleaning method.

  16. Engine room cooling system using jet pump

    Energy Technology Data Exchange (ETDEWEB)

    Lim, J.W.; Lee, S.H. [Daewoo Heavy Industries Ltd. (Korea)

    2000-04-01

    Construction machinery includes an engine enclosure separated from a cooling system enclosure by a wall to reduce noise and advance cooling system performance. For this structure, however, the axial fan cannot be of benefit to the engine room, and so the temperature rise in the engine room makes several bad conditions. This paper proposes that hot air in engine room is evacuated by secondary pipe using jet pump. This paper demonstrates the structure and the effect of jet pump and useful guideline on design of area, length, and shape of secondary pipe to maximize the effect of jet pump. (author). 4 refs., 7 figs., 5 tabs.

  17. Personal Exposure in Displacement Ventilated Rooms

    DEFF Research Database (Denmark)

    Brohus, Henrik; Nielsen, Peter Vilhelm

    1996-01-01

    Personal exposure in a displacement ventilated room is examined. The stratified flow and the considerable concentration gradients necessitate an improvement of the widely used fully mixing compartmental approach. The exposure of a seated and a standing person in proportion to the stratification...... in the lower part of the room close to the occupant. A personal exposure model for displacement ventilated rooms is proposed. The model takes the influence of gradients and the human thermal boundary layer into account. Two new quantities describing the interaction between a person and the ventilation...

  18. Simulating People Moving in Displacement Ventilated Rooms

    DEFF Research Database (Denmark)

    Mattsson, M.; Bjørn, Erik; Sandberg, M.

    A displacement ventilation system works better the more uni-directional the air flow through the ventilated room is: from floor to ceiling. Thus, from an air quality point of view, there should be as little vertical mixing of the room air as possible. It is therefore comprehensible that physical...... activity in the room -like peoples movements -in previous studies has been shown to influence the effectiveness of the ventilation. In this study we have compared results from previous tests, where a cylindrical person simulator was used, to results obtained when using a person simulator of more human...

  19. Solar-Panel Dust Accumulation and Cleanings

    Science.gov (United States)

    2005-01-01

    Air-fall dust accumulates on the solar panels of NASA's Mars Exploration Rovers, reducing the amount of sunlight reaching the solar arrays. Pre-launch models predicted steady dust accumulation. However, the rovers have been blessed with occasional wind events that clear significant amounts of dust from the solar panels. This graph shows the effects of those panel-cleaning events on the amount of electricity generated by Spirit's solar panels. The horizontal scale is the number of Martian days (sols) after Spirit's Jan. 4, 2005, (Universal Time) landing on Mars. The vertical scale indicates output from the rover's solar panels as a fraction of the amount produced when the clean panels first opened. Note that the gradual declines are interrupted by occasional sharp increases, such as a dust-cleaning event on sol 420.

  20. Clean coal and patent policy in Romania

    Energy Technology Data Exchange (ETDEWEB)

    Florin Popa [State Office for Inventions and Trademarks (Romania)

    2003-07-01

    The talk explained the importance of intellectual property protection to both industry and business. Applications for patents and utility models (for inventions), trademarks and industrial designs are filed with the State Office for Inventions and Trademarks (OSIM) in Romania; Trade secrets and how they can be kept, are discussed. The routes to follow before filing a patent application are outlined. An example is given of how to search for patents on 'clean coal' on the European Patents Office's database. The abstract of one patent is presented. This is entitled: 'Clean combustion of coal, utility of the concomitant products of the clean combustion and the product by using the concomitant products'. 23 PowerPoint slides are also available in the proceedings. 1 fig.

  1. Plasma cleaning of beryllium coated mirrors

    Science.gov (United States)

    Moser, L.; Marot, L.; Steiner, R.; Newman, M.; Widdowson, A.; Ivanova, D.; Likonen, J.; Petersson, P.; Pintsuk, G.; Rubel, M.; Meyer, E.; Contributors, JET

    2016-02-01

    Cleaning systems of metallic first mirrors are needed in more than 20 optical diagnostic systems from ITER to avoid reflectivity losses. Currently, plasma sputtering is considered as one of the most promising techniques to remove deposits coming from the main wall (mainly beryllium and tungsten). This work presents the results of plasma cleaning of rhodium and molybdenum mirrors exposed in JET-ILW and contaminated with typical tokamak elements (including beryllium and tungsten). Using radio frequency (13.56 MHz) argon or helium plasma, the removal of mixed layers was demonstrated and mirror reflectivity improved towards initial values. The cleaning was evaluated by performing reflectivity measurements, scanning electron microscopy, x-ray photoelectron spectroscopy and ion beam analysis.

  2. The macroecology of marine cleaning mutualisms.

    Science.gov (United States)

    Floeter, Sergio R; Vázquez, Diego P; Grutter, Alexandra S

    2007-01-01

    1. Marine cleaning mutualisms generally involve small fish or shrimps removing ectoparasites and other material from cooperating 'client' fish. We evaluate the role of fish abundance, body size and behaviour as determinants of interactions with cleaning mutualists. 2. Data come from eight reef locations in Brazil, the Caribbean, the Mediterranean and Australia. 3. We conducted a meta-analysis of client-cleaner interactions involving 11 cleaner and 221 client species. 4. There was a strong, positive effect of client abundance on cleaning frequency, but only a weak, negative effect of client body size. These effects were modulated by client trophic group and social behaviour. 5. This study adds to a growing body of evidence suggesting a central role of species abundance in structuring species interactions.

  3. Nonlinear temporal pulse cleaning techniques and application

    Institute of Scientific and Technical Information of China (English)

    Yi; Xu; Jianzhou; Wang; Yansui; Huang; Yanyan; Li; Xiaomin; Lu; Yuxin; Leng

    2013-01-01

    Two different pulse cleaning techniques for ultra-high contrast laser systems are comparably analysed in this work.The first pulse cleaning technique is based on noncollinear femtosecond optical-parametric amplification(NOPA)and second-harmonic generation(SHG)processes.The other is based on cross-polarized wave(XPW)generation.With a double chirped pulse amplifier(double-CPA)scheme,although temporal contrast enhancement in a high-intensity femtosecond Ti:sapphire chirped pulse amplification(CPA)laser system can be achieved based on both of the techniques,the two different pulse cleaning techniques still have their own advantages and are suitable for different contrast enhancement requirements of different laser systems.

  4. In-Water Hull Cleaning & Filtration System

    Science.gov (United States)

    George, Dan

    2015-04-01

    Dan George R & D Mining Technology LinkedIn GRD Franmarine have received the following prestigious awards in 2014 for their research & development of an in-water hull cleaning and filtration system "The Envirocart: Golden Gecko Award for Environmental Excellence; WA Innovator of the Year - Growth Sector; Department of Fisheries - Excellence in Marine Biosecurity Award - Innovation Category; Lloyd's List Asia Awards - Environmental Award; The Australian Innovation Challenge - Environment, Agriculture and Food Category; and Australian Shipping and Maritime Industry Award - Environmental Transport Award. The Envirocart developed and patented by GRD Franmarine is a revolutionary new fully enclosed capture and containment in-water hull cleaning technology. The Envirocart enables soft Silicon based antifouling paints and coatings containing pesticides such as Copper Oxide to be cleaned in situ using a contactless cleaning method. This fully containerised system is now capable of being deployed to remote locations or directly onto a Dive Support Vessel and is rated to offshore specifications. This is the only known method of in-water hull cleaning that complies with the Department of Agriculture Fisheries and Forestry (DAFF) and Department of Fisheries WA (DoF) Guidelines. The primary underwater cleaning tool is a hydraulically powered hull cleaning unit fitted with rotating discs. The discs can be fitted with conventional brushes for glass or epoxy based coatings or a revolutionary new patented blade system which can remove marine biofouling without damaging the antifouling paint (silicone and copper oxide). Additionally there are a patented range of fully enclosed hand cleaning tools for difficult to access niche areas such as anodes and sea chests, providing an innovative total solution that enables in-water cleaning to be conducted in a manner that causes no biological risk to the environment. In full containment mode or when AIS are present, material is pumped

  5. 7 CFR 58.211 - Packaging room for bulk products.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Packaging room for bulk products. 58.211 Section 58... Service 1 Rooms and Compartments § 58.211 Packaging room for bulk products. A separate room or area shall... dust within the packaging room and where needed, a dust collector shall be provided and...

  6. Clean Processing and Utilization of Coal Energy

    Institute of Scientific and Technical Information of China (English)

    陈如清; 王海峰

    2006-01-01

    The dominant status of coal on the energy production and consumption structure of China will not be changed in the middle period of this century. To realize highly efficient utilization of coal, low pollution and low cost are great and impendent tasks. These difficult problems can be almost resolved through establishing large-scale pithead power stations using two-stage highly efficient dry coal-cleaning system before coal burning, which is a highly efficient, clean and economical strategy considering the current energy and environmental status of China. All these will be discussed in detail in this paper.

  7. Cleaning with solvents methods and machinery

    CERN Document Server

    Durkee, John

    2014-01-01

    High-precision cleaning is required across many sectors, including aerospace, defense, medical device manufacturing, pharmaceutical processing, semiconductor/electronics, and more. In this comprehensive reference work, solvent cleaning equipment is thoroughly covered with a focus on the engineering details of its operation and selection. Key data is provided alongside practical guidance, giving scientists and engineers in multiple sectors the information they need not only to choose the correct machine in the first place, but also how to operate it effectively and efficiently. Low emission

  8. China Leading in Clean Energy Spending

    Institute of Scientific and Technical Information of China (English)

    Wu Zhenjun

    2010-01-01

    @@ China has taken the lead in investments in clean energy,spending nearly double what the US did in 2009,as it ramps up projects in both renewable and traditional energy.China's investment and financing for clean energy rose to US$34.6 billion in 2009,out of US$162 billion invested globally,according to the report by the nonprofit Pew Charitable Trusts.US spending ranked second,at US$18.6 billion,with European nations also recording strong growth.

  9. La decadencia del Sistema Nacional de Salud

    Directory of Open Access Journals (Sweden)

    Costas Lombardía, Enrique

    2005-02-01

    Full Text Available El Sistema Nacional de Salud no es, como oficialmente se enseña, un todo ramificado o descentralizado, sino un mosaico compuesto por 17 «todos », los 17 servicios sanitarios autonómicos, cada uno de ellos con poder estatutario para configurarse a sí mismo como entidad propia, sin interferencias de la administración central. Servicios casi soberanos, diferentes en criterios de asistencia y pautas administrativas, refractarios a su coordinación y cohesión, y hasta desconocidos entre si. Cada uno responde sólo ante los ciudadanos votantes de su comunidad, y está ensimismado en sus ambiciones (su política, sus posibles votos en busca del provecho partidista propio, y desinteresado del Sistema Nacional…

  10. Sistemas electorales y justicia electoral a debate

    Directory of Open Access Journals (Sweden)

    Dieter Nohlen

    2015-07-01

    Full Text Available Despliega conceptos y planteamientos en torno a los sistemas electorales y la justicia electoral. El autor inicia con una descripción estricta de los sistemas electorales para orientar, en una segunda parte, un debate sobre la justicia electoral, que marca dos tendencias: la judicialización de la política y la politización de la administración y la jurisdicción electoral. Concluye que el desarrollo de la justicia electoral en América Latina, en sus múltiples dimensiones, es comprensible sólo con referencia al contexto sociocultural y político de la región

  11. GPS: El sistema de posicionamiento global

    Directory of Open Access Journals (Sweden)

    Juan Gilberto Serpas

    2016-03-01

    Full Text Available El Sistema de Posicionamiento Global (GPS, por sus siglas en inglés se ha convertido, en la actualidad, en una herramienta invaluable para el posicionamiento de puntos sobre la superficie terrestre. Este artículo pretende dar al lector una descripción del GPS, así como la introducción al cálculo de coordenadas para ser usadas tanto en navegación como en labores de topografía y geodesia. Las características principales del sistema son descritas y se introducen los principios básicos para la determinación de coordenadas tanto en modo absoluto como en modo relativo.

  12. Virtual Training of Compressor Control Room Project

    Data.gov (United States)

    National Aeronautics and Space Administration — MYMIC will analyze, design, develop and evaluate the Virtual Control Room – Compressor Station (VCoR-CS) training system. VCoR-CS will provide procedural...

  13. Microalgal Mass Culture Room Harvest Records

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The microalgal mass culture room, housed at the NOAA Fisheries' Milford CT laboratory, provides research grade microalgae (phytoplankton) to in-house and...

  14. Room temperature creep in metals and alloys

    Energy Technology Data Exchange (ETDEWEB)

    Deibler, Lisa Anne [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Materials Characterization and Performance

    2014-09-01

    Time dependent deformation in the form of creep and stress relaxation is not often considered a factor when designing structural alloy parts for use at room temperature. However, creep and stress relaxation do occur at room temperature (0.09-0.21 Tm for alloys in this report) in structural alloys. This report will summarize the available literature on room temperature creep, present creep data collected on various structural alloys, and finally compare the acquired data to equations used in the literature to model creep behavior. Based on evidence from the literature and fitting of various equations, the mechanism which causes room temperature creep is found to include dislocation generation as well as exhaustion.

  15. HISTORIC ENERGY STAR Certified Room Air Cleaners

    Data.gov (United States)

    U.S. Environmental Protection Agency — Certified models meet all ENERGY STAR requirements as listed in the Version 1.2 ENERGY STAR Program Requirements for Room Air Cleaners that are effective as of July...

  16. El Sistema Político Latinoamericano

    Directory of Open Access Journals (Sweden)

    Luis Dallanegra Pedraza

    2003-01-01

    Full Text Available Se ha escrito mucho sobre la problemática latinoamericana, y sobre sus aspectos históricos, especialmente en relación con Estados Unidos, y sobre las políticas que este país ha ido aplicando históricamente en sus sucesivos períodos de gobierno, hacia América Latina. Sin embargo, no se ha hecho un estudio profundo sobre el sistema político latinoamericano. Al menos sobre la existencia de un sistema político específico en América Latina que la caracterice desde ese punto de vista. Siempre se han utilizado las tipologías políticas europeas para caracterizar al continente suramericano, siendo que se trata de sociedades y culturas políticas diferentes. Es cierto que existe una “geografía” llamada América Latina; lo que no necesariamente coincide con la existencia de un sistema político que abarque esa región. Lo más peculiar es que, lo que era considerado como la “verdad” en la América Latina de los cuarentas, cincuentas, sesentas, e incluso hasta los ochentas; luego de la caída del Muro de Berlín en 1989 y la desintegración de la URSS en 1991, paso a ser lo errado. Se procura mostrar el hilo conductor del comportamiento de los sistemas políticos latinoamericanos.

  17. Sistema de domòtica

    OpenAIRE

    Andreo García, Pedro

    2011-01-01

    Memòria del TFC de Sistemes Encastats, relatiu a una aplicació de domòtica implementada mitjançant una xarxa de sensors sense fils. Memoria del TFC de Sistemas Empotrados, relativo a una aplicación de domótica implementada mediante una red de sensores inalámbricos. Final degree project dissertation on Embedded Systems on a home automation application implemented through a network of wireless sensors.

  18. usando dinámica de sistemas

    Directory of Open Access Journals (Sweden)

    Carlos Mario Parra Mesa

    2006-01-01

    Full Text Available Este artículo pretende motivar a los estamentos académicos y a las pequeñas y medianas organizaciones a desarrollar en el área de la simulación dinámica de sistemas trabajos conjuntos que conlleven a un direccionamiento empresarial más claro y confiable, y de paso contribuyan a la formación de profesionales mejor capacitados para satisfacer las necesidades del medio. Para ello se presenta la aplicación de la simulación dinámica de sistemas en una pequeña empresa, mediante la modelación y simulación computacional del proceso de plastificado de barra metálica para carpetas de FRAMECO S.A (Bello-Antioquia, con interés particular en la identificación de las limitaciones del sistema, la capacidad de producción, el tiempo tipo del proceso, el tiempo ocioso de la mano de obra y el tiempo de consumo innecesario del gas empleado como insumo en uno de los equipos; igualmente, se ilustra de manera general el análisis de sensibilidad del proceso. Como resultado se obtiene un modelo de simulación que representa de manera razonable el comportamiento dinámico del proceso y le facilita al directivo, académico o analista, la comprensión, el análisis y el mejoramiento del sistema productivo.

  19. ENHANCED CHEMICAL CLEANING: A NEW PROCESS FOR CHEMICALLY CLEANING SAVANNAH RIVER WASTE TANKS

    Energy Technology Data Exchange (ETDEWEB)

    Ketusky, E; Neil Davis, N; Renee Spires, R

    2008-01-17

    The Savannah River Site (SRS) has 49 high level waste (HLW) tanks that must be emptied, cleaned, and closed as required by the Federal Facilities Agreement. The current method of chemical cleaning uses several hundred thousand gallons per tank of 8 weight percent (wt%) oxalic acid to partially dissolve and suspend residual waste and corrosion products such that the waste can be pumped out of the tank. This adds a significant quantity of sodium oxalate to the tanks and, if multiple tanks are cleaned, renders the waste incompatible with the downstream processing. Tank space is also insufficient to store this stream given the large number of tanks to be cleaned. Therefore, a search for a new cleaning process was initiated utilizing the TRIZ literature search approach, and Chemical Oxidation Reduction Decontamination--Ultraviolet (CORD-UV), a mature technology currently used for decontamination and cleaning of commercial nuclear reactor primary cooling water loops, was identified. CORD-UV utilizes oxalic acid for sludge dissolution, but then decomposes the oxalic acid to carbon dioxide and water by UV treatment outside the system being treated. This allows reprecipitation and subsequent deposition of the sludge into a selected container without adding significant volume to that container, and without adding any new chemicals that would impact downstream treatment processes. Bench top and demonstration loop measurements on SRS tank sludge stimulant demonstrated the feasibility of applying CORD-UV for enhanced chemical cleaning of SRS HLW tanks.

  20. EUV mask cleans comparison of frontside and dual-sided concurrent cleaning

    Science.gov (United States)

    Cheong, Lin Lee; Kindt, Louis; Turley, Christina; Leonhard, Dusty; Boyle, John; Robinson, Chris; Rankin, Jed; Corliss, Daniel

    2015-03-01

    The cleaning requirements for EUV masks are more complex than optical masks due to the absence of available EUVcompatible pellicles. EUV masks must therefore be capable of undergoing more than 100 cleaning cycles with minimum impact to lithographic performance. EUV masks are created on substrates with 40 multilayers of silicon and molybdenum to form a Bragg reflector, capped with a 2.5nm-thick ruthenium layer and a tantalum-based absorber; during usage, both ruthenium and absorber are exposed to the cleaning process. The CrN layer on the backside is used to enable electrostatic clamping. This clamp side must also be free of particles that could impact printing and overlay, and particles could also potentially migrate to the frontside and create defects. Thus, the cleaning process must provide decent particle removal efficiencies on both front- and backside while maintaining reflectivity with minimal surface roughness change. In this paper, we report progress developing a concurrent patterned-side and clamped-side cleaning process that achieves minimal reflectivity change over 120 cleaning cycles, with XPS and EDS indicating the presence of ruthenium after 125 cleaning cycles. The change in surface roughness over 100 cleaning cycles is within the noise (0.0086nm) on a mask blank, and SEM inspection of 100nm and 200nm features on patterned masks after undergoing 100 cleaning cycles show no indications of ruthenium pitting or significant surface damage. This process was used on test masks to remove particles from both sides that would otherwise inhibit these masks from being used in the scanner.