WorldWideScience

Sample records for chain configuration integration

  1. Supply Chain Partners and Configuration Selection : An Intuitionistic Fuzzy Chouquet Integral Operator Based Approach

    NARCIS (Netherlands)

    Ashayeri, J.; Tuzkaya, G.; Tuzkaya, U.

    2010-01-01

    The concept of a supply chain exists for over twenty years but partners and configuration selection process still is rather unstructured. In order to increase value in any supply chain, a more comprehensive and integrative approach is required to select the right partners and establish the right con

  2. The Reverse Supply Chain: Configuration, Integration and Profitability

    DEFF Research Database (Denmark)

    Gobbi, Chiara

    2008-01-01

    Directive for Waste of Electrical and Electronic Equipment (WEEE). The electrical and electronic waste represents on average 4% of the total disposed waste in Europe but it is extremely dangerous for the environment due to the materials content; furthermore, the disposing rate has increased every year......, by the European Community. The number and scope of these regulations are due to increase over time as well as the impact they have on companies. This study has particularly considered the implementation of the reverse chain that aims at recovering electrical and electronic goods, complying with the European...... by organisations and communities that are concerned about the deteriorating conditions of the environment, depletion of non-renewable resources, and ever increasing disposal of waste. These concerns find an answer in the approval of environmental legislations, introduced by governments in particular, in Europe...

  3. Process Modeling, Performance Analysis and Configuration Simulation in Integrated Supply Chain Network Design

    OpenAIRE

    Dong, Ming

    2001-01-01

    Supply chain management has been recently introduced to address the integration of organizational functions ranging from the ordering and receipt of raw materials throughout the manufacturing processes, to the distribution and delivery of products to the customer. Its application demonstrates that this idea enables organizations to achieve higher quality products, better customer service, and lower inventory cost. In order to achieve high performance, supply chain functions must operate ...

  4. Supply chain configuration concepts, solutions, and applications

    CERN Document Server

    Chandra, Charu

    2016-01-01

    This book discusses the models and tools available for solving configuration problems, emphasizes the value of model integration to obtain comprehensive and robust configuration decisions, proposes solutions for supply chain configuration in the presence of stochastic and dynamic factors, and illustrates application of the techniques discussed in applied studies. It is divided into four parts, which are devoted to defining the supply chain configuration problem and identifying key issues, describing solutions to various problems identified, proposing technologies for enabling supply chain confirmations, and discussing applied supply chain configuration problems. Its distinguishing features are: an explicit focus on the configuration problem an in-depth coverage of configuration models an emphasis on model integration and application of information modeling techniques in decision-making New to this edition is Part II: Technologies, which introduces readers to various technologies being utilized for supply chai...

  5. A hybrid approach for integrated healthcare cooperative purchasing and supply chain configuration.

    Science.gov (United States)

    Rego, Nazaré; Claro, João; Pinho de Sousa, Jorge

    2014-12-01

    This paper presents an innovative and flexible approach for recommending the number, size and composition of purchasing groups, for a set of hospitals willing to cooperate, while minimising their shared supply chain costs. This approach makes the financial impact of the various cooperation alternatives transparent to the group and the individual participants, opening way to a negotiation process concerning the allocation of the cooperation costs and gains. The approach was developed around a hybrid Variable Neighbourhood Search (VNS)/Tabu Search metaheuristic, resulting in a flexible tool that can be applied to purchasing groups with different characteristics, namely different operative and market circumstances, and to supply chains with different topologies and atypical cost characteristics. Preliminary computational results show the potential of the approach in solving a broad range of problems.

  6. Qualtiy Issues in Project configured Supply Chains

    DEFF Research Database (Denmark)

    Koch, Christian; Larsen, Casper Schultz

    by configuration by project. In such a setting creating value for the customers and the enterprises becomes dependent of the ability to organise and coordinate in the supply chains. That the configuration is not always successful can be demonstrated by studying the emergence of failures occurring in the supply...... observation period. These were compiled and analysed. The economic consequences are calculated to be 8% of the production costs. The analysis of relations in the supply chain both show relations to materials and knowledge chains and their interaction. Most of the failures were generated in the knowledge...... stream and then occasionally transform into the material stream. The paper proposes initiatives to strengthen partnerships in supply chains and especially at engineer to order production. The contradiction between the permanent enterprise organisation potentially capable of handling purchasing...

  7. Sustainable Supply Chain Design: A Configurational Approach

    Directory of Open Access Journals (Sweden)

    S. Maryam Masoumik

    2014-01-01

    Full Text Available Designing the right supply chain that meets the requirements of sustainable development is a significant challenge. Although there are a considerable number of studies on issues relating to sustainable supply chain design (SSCD in terms of designing the practices, processes, and structures, they have rarely demonstrated how these components can be aligned to form an effective sustainable supply chain (SSC. Considering this gap in the literature, this study adopts the configurational approach to develop a conceptual framework that could configure the components of a SSC. In this respect, a process-oriented approach is utilized to classify and harmonize the design components. A natural-resource-based view (NRBV is adopted to determine the central theme to align the design components around. The proposed framework presents three types of SSC, namely, efficient SSC, innovative SSC, and reputed SSC. The study culminates with recommendations concerning the direction for future research.

  8. Integrated supply chain risk management

    OpenAIRE

    Riaan Bredell; Jackie Walters

    2007-01-01

    Integrated supply chain risk management (ISCRM) has become indispensable to the theory and practice of supply chain management. The economic and political realities of the modern world require not only a different approach to supply chain management, but also bold steps to secure supply chain performance and sustainable wealth creation. Integrated supply chain risk management provides supply chain organisations with a level of insight into their supply chains yet to be achieved. If correctly ...

  9. Decision-Making for Supply Chain Integration Supply Chain Integration

    CERN Document Server

    Lettice, Fiona; Durowoju, Olatunde

    2012-01-01

    Effective supply chain integration, and the tight co-ordination it creates, is an essential pre-requisite for successful supply chain management.  Decision-Making for Supply Chain Integration is a practical reference on recent research in the area of supply chain integration focusing on distributed decision-making problems. Recent applications of various decision-making tools for integrating supply chains are covered including chapters focusing on: •Supplier selection, pricing strategy and inventory decisions in multi-level supply chains, •RFID-enabled distributed decision-making, •Operational risk issues and time-critical decision-making for sensitive logistics nodes, Modelling end to end processes to improve supply chain integration, and •Integrated systems to improve service delivery and optimize resource use. Decision-Making for Supply Chain Integration provides an insight into the tools and methodologies of this field with support from real-life case studies demonstrating successful application ...

  10. Integrated supply chain risk management

    Directory of Open Access Journals (Sweden)

    Riaan Bredell

    2007-11-01

    Full Text Available Integrated supply chain risk management (ISCRM has become indispensable to the theory and practice of supply chain management. The economic and political realities of the modern world require not only a different approach to supply chain management, but also bold steps to secure supply chain performance and sustainable wealth creation. Integrated supply chain risk management provides supply chain organisations with a level of insight into their supply chains yet to be achieved. If correctly applied, this process may optimise management decision-making and assist in the protection and enhancement of shareholder value.

  11. International Space Station Configuration Analysis and Integration

    Science.gov (United States)

    Anchondo, Rebekah

    2016-01-01

    Ambitious engineering projects, such as NASA's International Space Station (ISS), require dependable modeling, analysis, visualization, and robotics to ensure that complex mission strategies are carried out cost effectively, sustainably, and safely. Learn how Booz Allen Hamilton's Modeling, Analysis, Visualization, and Robotics Integration Center (MAVRIC) team performs engineering analysis of the ISS Configuration based primarily on the use of 3D CAD models. To support mission planning and execution, the team tracks the configuration of ISS and maintains configuration requirements to ensure operational goals are met. The MAVRIC team performs multi-disciplinary integration and trade studies to ensure future configurations meet stakeholder needs.

  12. Governance In Project Configured Supply Chains

    DEFF Research Database (Denmark)

    Koch, Christian; Larsen, Casper Schultz; Gottlieb, Stefan Christoffer

    2006-01-01

    This case study covers a Danish architectural, engineering and construction supply network for a specific building project. Failures in supply are used as indicators of the governance forms employed. The following governance forms are present; internal integration and hierarchy, SCM......-efforts, subsystem deliveries and contracting per project. The case exhibits a very uneven integration upstream: Three engineering design areas are integrated with production and the client function. Amongst supplies, the architectural design is the most 'clean-cut' knowledge supply, whereas the supplies...... are integrated knowledge, material, workforce and management subsystem deliveries (the building core produced of pre-cast concrete, the elevator supply and the kitchen supply). Further 17 deliveries draws on more than 50 materials and component suppliers. The case project generated 160 failures over three months...

  13. Enactment of the Organizational Cost Structure in Value Chain Configuration

    OpenAIRE

    Scheibye, Carsten

    2015-01-01

    This PhD Thesis researches into Strategic Cost Management with a general research interest in, how top management makes sense about the organization’s cost structure in strategic decisions about the configuration of the value chain. The empirical setting is among other confined by organizations’ outsourcing and relocation ventures, where ‘cost reduction’ is a prominent argument behind the decisions. The overall research purpose is to develop explanatory propositions about, how ...

  14. Integrating configuration workflows with project management system

    Science.gov (United States)

    Nilsen, Dimitri; Weber, Pavel

    2014-06-01

    The complexity of the heterogeneous computing resources, services and recurring infrastructure changes at the GridKa WLCG Tier-1 computing center require a structured approach to configuration management and optimization of interplay between functional components of the whole system. A set of tools deployed at GridKa, including Puppet, Redmine, Foreman, SVN and Icinga, provides the administrative environment giving the possibility to define and develop configuration workflows, reduce the administrative effort and improve sustainable operation of the whole computing center. In this presentation we discuss the developed configuration scenarios implemented at GridKa, which we use for host installation, service deployment, change management procedures, service retirement etc. The integration of Puppet with a project management tool like Redmine provides us with the opportunity to track problem issues, organize tasks and automate these workflows. The interaction between Puppet and Redmine results in automatic updates of the issues related to the executed workflow performed by different system components. The extensive configuration workflows require collaboration and interaction between different departments like network, security, production etc. at GridKa. Redmine plugins developed at GridKa and integrated in its administrative environment provide an effective way of collaboration within the GridKa team. We present the structural overview of the software components, their connections, communication protocols and show a few working examples of the workflows and their automation.

  15. Integrating configuration workflows with project management system

    International Nuclear Information System (INIS)

    The complexity of the heterogeneous computing resources, services and recurring infrastructure changes at the GridKa WLCG Tier-1 computing center require a structured approach to configuration management and optimization of interplay between functional components of the whole system. A set of tools deployed at GridKa, including Puppet, Redmine, Foreman, SVN and Icinga, provides the administrative environment giving the possibility to define and develop configuration workflows, reduce the administrative effort and improve sustainable operation of the whole computing center. In this presentation we discuss the developed configuration scenarios implemented at GridKa, which we use for host installation, service deployment, change management procedures, service retirement etc. The integration of Puppet with a project management tool like Redmine provides us with the opportunity to track problem issues, organize tasks and automate these workflows. The interaction between Puppet and Redmine results in automatic updates of the issues related to the executed workflow performed by different system components. The extensive configuration workflows require collaboration and interaction between different departments like network, security, production etc. at GridKa. Redmine plugins developed at GridKa and integrated in its administrative environment provide an effective way of collaboration within the GridKa team. We present the structural overview of the software components, their connections, communication protocols and show a few working examples of the workflows and their automation.

  16. Port supply chain integration : analyzing biofuel supply chains

    NARCIS (Netherlands)

    Stevens, Leonie C. E.; Vis, Iris F. A.

    2016-01-01

    This paper focuses on port supply chain integration to strengthen operational and business performance. We provide a structured and comprehensive method to enable port supply chain integration and demonstrate its applicability to the biofuel supply chain. We define the value proposition, role, activ

  17. Integration, Configuration and Coordination: from Project to Reality, at CERN

    CERN Document Server

    Barberan Marin, Maria; Bernardini, Marzia; Birtwistle, Thomas; Chemli, Samy; Corso, Jean-Pierre; Coupard, Julie; Foraz, Katy; Grillot, Serge; Muttoni, Yvon; Perrot, Anne-Laure

    2016-01-01

    The rigorous process in place at CERN to approve and follow-up the implementation of any modification of the LHC machine and its Injectors is presented in this paper. Our methodology implies the support of three teams, in charge of the configuration management, the scheduling and safety coordination, and the 3D integration studies. At each stage of the project the support of the three teams evolves, to provide the adequate support in the preparation phase and during the technical stops and long shutdowns. The formal roles and the processes used to govern the interaction of the Integration, Configuration and Coordination teams, and their relation to the project teams during the preparation and implementation phases, for activities to be performed in LHC and its injector chain are described and discussed.

  18. Research on Integrated Green Supply Chain Management

    Institute of Scientific and Technical Information of China (English)

    DENG Lei; WANG Xu

    2006-01-01

    On the basis of the analyzing product life cycle and value chain management in green supply chain, integrated green supply chain is put forward and constructed which involve lean production, agile manufacturing and green supply chain. This integrated structure provides an effective method for resolving some questions such as cost, market, environment, etc. in enterprise. A case study is presented at the end of paper to demonstrate how integrated supply chain implemented successfully in enterprise.

  19. Feynman integrals and motives of configuration spaces

    CERN Document Server

    Ceyhan, Ozgur

    2010-01-01

    We formulate the problem of renormalization of Feynman integrals and its relation to periods of motives in configuration space instead of momentum space. The algebro-geometric setting is provided by the wonderful compactifications of arrangements of subvarieties associated to the subgraphs of a Feynman graph and a (quasi)projective variety. The motive and the class in the Grothendieck ring are computed explicitly for these wonderful compactifications, in terms of the motive of the variety and the combinatorics of the Feynman graph, using recent results of Li Li. The pullback to the wonderful compactification of the form defined by the unrenormalized Feynman amplitude has singularities along a hypersurface, whose real locus is contained in the exceptional divisors of the iterated blowup that gives the wonderful compactification. A regularization of the Feynman integrals can be obtained by modifying the cycle of integration, by replacing the divergent locus with a Leray coboundary. The ambiguities are then defi...

  20. CONFIGURATION-DEPENDENT PROPERTIES OF POLY(DIMETHYLSILOXANE) CHAIN

    Institute of Scientific and Technical Information of China (English)

    Lin-xi Zhang; A-gen Xia; Xiang-hong Wang; Jian-min Xu

    1999-01-01

    The intermolecular rotational potential energies for poly(dimethylsiloxane) (PJMS) chains are directly obtained from a priori probability Pαβ. Here the differing statistical weight matrices for the Si-O and O-Si bonds are considered in calculating the configuration partition function. In the Bahar's model, as the same statistical weight matrices for the Si-O and O-Si bonds are adopted, there exists a large deviation of a priori probability Pαβ between the theory and the molecular dynamics (MD) simulation. Our model gives satisfactory agreement with experiment on the mean-square unperturbed end-to-end distance, the meansquare dipole moment and its temperature dependence, and the molar cyclization equilibrium constants for dimethylsiloxane oligomers. This new rotational isomeric state approach can be widely applied to other chains, such as - CH2- C [(CH2)mH]2- and - O- Si [(CH2)mH] 2 for arbitrary m .

  1. The Integral Screened Configuration Interaction Method

    CERN Document Server

    Sørensen, Lasse Kragh; Madsen, Lars Bojer

    2016-01-01

    We present the formulation and implementation of the Integral-Screened Configuration-Interaction method (ISCI). The ISCI is a minimal-operational count integral-driven direct Configuration-Interaction (CI) method with a simple and rigorous integral screening (IS). With a novel derivation of the CI equations we show that the time consuming $\\sigma$-vector calculation is separable up to an overall sign and that this separability can lead to a rigorous IS. The rigorous IS leads to linear scaling in the $\\sigma$-vector step for large systems but can also lead to near linear scaling for smaller systems for the standard CISD, CISDT and CISDTQ methods, where the exponent for the scaling is 1.27, 1.48 and 1.98, respectively, even while retaining an accuracy of $10^{-14}$ or less in the energy. In the ISCI the non-relativistic CI problem can be broken into 42 generalized-matrix-vector products in the $\\sigma$-vector calculation, which can be separately optimized. Due to the IS the ISCI can use dramatically larger orbi...

  2. Systematic Methodology of Integrated Supply Chain Management

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Supply chain management (SCM) is a strategy for global competition. Th e characteristics of SCM are integration, systematic and coordination. Using sys tematic, coordination thoughts and integration theory, a new model of enterprise integration based on supply chain management is put forward and an implementing paradigm for systematic methodology of supply chain management is developed.

  3. The configurational approach in supply chain management (SCM) of steel goods

    OpenAIRE

    Dohn, K.

    2014-01-01

    A basic element of supply chain management is the holistic or system view. Following this perspective supply chain management has to analyse the supply chain as a whole and must not only concentrate on details or specific elements. The configurational approach is one method for realizing this. The article analyses how the configurational approach can be applied in SCM of steel goods.

  4. On the cohomology of spaces of links and braids via configuration space integrals

    CERN Document Server

    Volic, Ismar

    2010-01-01

    We study the cohomology of spaces of string links and braids in $\\mathbb{R}^n$ for $n\\geq 3$ using configuration space integrals. For $n>3$, these integrals give a chain map from certain diagram complexes to the deRham algebra of differential forms on these spaces. For $n=3$, they produce all finite type invariants of string links and braids.

  5. Investigation on Supply Chain Management Based on ComponentConfiguration

    Institute of Scientific and Technical Information of China (English)

    张洁; 陈淮莉; 马登哲

    2004-01-01

    From supply-push mode to demand-pull mode, SCM systems will face four main points: (1) real time visibility that covers the whole supply chain, (2) agility for choice of supply and source, (3) response to diverse customer demands and short delivery deadlines, and (4) rapid occurrence of new products following the market trends and new designs. Component-based SCM has become a hot spot in research areas. A multi-layer framework is set up, including a database server layer, an application server layer, a kernel component layer and a user interface layer. Some function components are designed, which are optimal planning arithmetic components, controller components and evaluation indexes components, in order to suit both discrete and continuous manufacturing. This paper studies a three-dimensional SCM configuration method based on the types of enterprise, manufacturing and products, provides powerful tools for SCM system implementations, and adopts an object-oriented technology to construct component-based distributed information system to assure right time, right materials, right place, right quantity and right customers.

  6. Supply Chain Integration: Challenges and Solutions

    OpenAIRE

    Sweeney, Edward

    2011-01-01

    Rapid changes in technological development are forcing businesses to continuously innovate to improve their competitiveness, which is particularly evident in logistics and supply chain management (SCM), where innovation impacts both the strategic and operational levels. Supply Chain Innovation for Competing in Highly Dynamic Markets: Challenges and Solutions investigates the role of innovation in the management of supply chains of today. This book focuses on supply chain integration from both...

  7. Achieving Supply Chain Integration within Construction Industry

    OpenAIRE

    Peter McDermotti; Malik Khalfan

    2012-01-01

    The main driver behind the adoption of supply chain management (SCM) philosophy into the construction industry was the successes within other industry sectors. SCM can be defined as network of different organisations, linked upstream and downstream in a chain, aiming to produce quality and value in the services and products for the end consumers through integrated processes and activities. In order to achieve the optimised level of integration of the whole supply chain, the industry has respo...

  8. Integrating product design into the supply chain

    DEFF Research Database (Denmark)

    Khan, Omera; Stolte, Terje; Creazza, Alessandro;

    2016-01-01

    Purpose: The aim of the research is to illustrate how companies can create competitive capabilities through integration of product design into the supply chain. In doing so the paper reveals the challenges and the opportunities that companies face when integrating product design and supply chain...... of opportunities and challenges when integrating product design and the supply chain and subsequently a step-by-step guide is developed to address these. Practical Implications: The research provides key recommendations to companies on how to create competitive capabilities by integrating product design...... into the supply chain. Originality/Value: This paper provides novel insights to both practitioners and researchers. For practitioners detailed recommendations are given on how they can maximise benefits through integrating product design into the supply chain. The RBV has been harnessed to highlight how...

  9. Integration of Forestry Industrial Chain in China

    Institute of Scientific and Technical Information of China (English)

    Zhanzhan; LAN; Liqun; WANG

    2013-01-01

    Based on the Smile Curve and Michael E. Porter’ value chain model,this paper points out that China’s forestry industry stays at the low end of the value chain for a long time. Raw materials are imported from foreign countries and also sold in foreign countries. Then,the authors analyze characteristics and existing problems of China’s forestry industrial chain. They put forward the development direction of China’s forestry industrial chain with reference to International Paper Company. Finally,they present their recommendations for integration of China’s forestry industrial chain.

  10. Information Technologies and Supply Chain Integration

    DEFF Research Database (Denmark)

    Lemoine, W; Mortensen, Ole

    integration. This study illustrates, from an empirical point of view, the problems associ-ated to SC integration among European firms operating in global/international markets. The focus is on the relationship between two echelons in the supply chain: manufacturers and their transport and logistics service......The goal of the Supply Chain Management process is to create value for customers, stakeholders and all supply chain members, through the integration of different processes like manufacturing flow management, customer service and order fulfillment. However, many firms fail in the path of achieving...... integration. Our results show that the current business integra-tion practices between manufacturers and TLSPs are primarily restricted to some sub-processes in three key SC processes: Customer Service Management, order fulfillment and backwards logistics. The use of IT tools to support the integration has...

  11. User Involvement as a Configurable Integrated Product Delivery

    DEFF Research Database (Denmark)

    Vibæk, Kasper Sánchez

    2009-01-01

    Integrated product deliveries as known from the product industry are beginning to emerge in construction. These are normally considered as physical systems that can be configured and customised for a specific delivery to form part of a unique construction project and help to reduce the complexity...... as a configurable integrated product delivery then the architect can – using slightly provocatively a term from the production industry – be seen a configuration manager of processes shaping our physical surroundings. Products focusing on standardisation and mass customisation of the building process rather than...... physical systems could however become architecturally intriguing by leaving more open the solution space of the final result....

  12. Exciton Transfer Integrals Between Polymer Chains

    CERN Document Server

    Barford, W

    2007-01-01

    The line-dipole approximation for the evaluation of the exciton transfer integral, $J$, between conjugated polymer chains is rigorously justified. Using this approximation, as well as the plane-wave approximation for the exciton center-of-mass wavefunction, it is shown analytically that $J \\sim L$ when the chain lengths are smaller than the separation between them, or $J\\sim L^{-1}$ when the chain lengths are larger than their separation, where $L$ is the polymer length. Scaling relations are also obtained numerically for the more realistic standing-wave approximation for the exciton center-of-mass wavefunction, where it is found that for chain lengths larger than their separation $J \\sim L^{-1.8}$ or $J \\sim L^{-2}$, for parallel or collinear chains, respectively. These results have important implications for the photo-physics of conjugated polymers and self-assembled molecular systems, as the Davydov splitting in aggregates and the F\\"orster transfer rate for exciton migration decreases with chain lengths l...

  13. Effective Batalin--Vilkovisky theories, equivariant configuration spaces and cyclic chains

    CERN Document Server

    Cattaneo, Alberto S

    2008-01-01

    Kontsevich's formality theorem states that the differential graded Lie algebra of multidifferential operators on a manifold M is L-infinity-quasi-isomorphic to its cohomology. The construction of the L-infinity map is given in terms of integrals of differential forms on configuration spaces of points in the upper half-plane. Here we consider configuration spaces of points in the disk and work equivariantly with respect to the rotation group. This leads to considering the differential graded Lie algebra of multivector fields endowed with a divergence operator. In the case of R^d with standard volume form, we obtain an L-infinity morphism of modules over this differential graded Lie algebra from cyclic chains of the algebra of functions to multivector fields. As a first application we give a construction of traces on algebras of functions with star-products associated with unimodular Poisson structures. The construction is based on the Batalin--Vilkovisky quantization of the Poisson sigma model on the disk and ...

  14. Integrable Deformations of the XXZ Spin Chain

    CERN Document Server

    Beisert, Niklas; de Leeuw, Marius; Loebbert, Florian

    2013-01-01

    We consider integrable deformations of the XXZ spin chain for periodic and open boundary conditions. In particular, we classify all long-range deformations and study their impact on the spectrum. As compared to the XXX case, we have the z-spin at our disposal, which induces two additional deformations: the short-range magnetic twist and a new long-range momentum-dependent twist.

  15. Path integrals, black holes and configuration space topology

    CERN Document Server

    Ortiz, M E

    1999-01-01

    A path integral derivation is given of a thermal propagator in a collapsing black-hole spacetime. The thermal nature of the propagator as seen by an inertial observer far from the black hole is understood in terms of homotopically non-trivial paths in the configuration space appropriate to tortoise coordinates.

  16. Differential neural network configuration during human path integration

    Directory of Open Access Journals (Sweden)

    Aiden EGF Arnold

    2014-04-01

    Full Text Available Path integration is a fundamental skill for navigation in both humans and animals. Despite recent advances in unravelling the neural basis of path integration in animal models, relatively little is known about how path integration operates at a neural level in humans. Previous attempts to characterize the neural mechanisms used by humans to visually path integrate have suggested a central role of the hippocampus in allowing accurate performance, broadly resembling results from animal data. However, in recent years both the central role of the hippocampus and the perspective that animals and humans share similar neural mechanisms for path integration has come into question. The present study uses a data driven analysis to investigate the neural systems engaged during visual path integration in humans, allowing for an unbiased estimate of neural activity across the entire brain. Our results suggest that humans employ common task control, attention and spatial working memory systems across a frontoparietal network during path integration. However, individuals differed in how these systems are configured into functional networks. High performing individuals were found to more broadly express spatial working memory systems in prefrontal cortex, while low performing individuals engaged an allocentric memory system based primarily in the medial occipito-temporal region. These findings suggest that visual path integration in humans over short distances can operate through a spatial working memory system engaging primarily the prefrontal cortex and that the differential configuration of memory systems recruited by task control networks may help explain individual biases in spatial learning strategies.

  17. Demand chain management-integrating marketing and supply chain management

    OpenAIRE

    Jüttner, Uta; Christopher, Martin; Baker, Susan

    2007-01-01

    This paper endorses demand chain management as a new business model aimed at creating value in today's marketplace, and combining the strengths of marketing and supply chain competencies. Demand chain design is based on a thorough market understanding and has to be managed in such a way as to effectively meet differing customer needs. Based on a literature review as well as the findings from a co-development workshop and focus group discussions with marketing and supply chain professionals, a...

  18. Organometallic macromolecules with piano stool coordination repeating units: chain configuration and stimulated solution behaviour.

    Science.gov (United States)

    Cao, Kai; Ward, Jonathan; Amos, Ryan C; Jeong, Moon Gon; Kim, Kyoung Taek; Gauthier, Mario; Foucher, Daniel; Wang, Xiaosong

    2014-09-11

    Theoretical calculations illustrate that organometallic macromolecules with piano stool coordination repeating units (Fe-acyl complex) adopt linear chain configuration with a P-Fe-C backbone surrounded by aromatic groups. The macromolecules show molecular weight-dependent and temperature stimulated solution behaviour in DMSO.

  19. Algebraic renormalization and Feynman integrals in configuration spaces

    CERN Document Server

    Ceyhan, Ozgur

    2013-01-01

    This paper continues our previous study of Feynman integrals in configuration spaces and their algebro-geometric and motivic aspects. We consider here both massless and massive Feynman amplitudes, from the point of view of potential theory. We consider a variant of the wonderful compactification of configuration spaces that works simultaneously for all graphs with a given number of vertices and that also accounts for the external structure of Feynman graph. As in our previous work, we consider two version of the Feynman amplitude in configuration space, which we refer to as the real and complex versions. In the real version, we show that we can extend to the massive case a method of evaluating Feynman integrals, based on expansion in Gegenbauer polynomials, that we investigated previously in the massless case. In the complex setting, we show that we can use algebro-geometric methods to renormalize the Feynman amplitudes, so that the renormalized values of the Feynman integrals are given by periods of a mixed ...

  20. Integrable spin chains and scattering amplitudes

    Energy Technology Data Exchange (ETDEWEB)

    Bartels, J.; Prygarin, A. [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik; Lipatov, L.N. [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik; Petersburg Nuclear Physics Institute (Russian Federation); Sankt-Peterburgskij Univ., St. Petersburg (Russian Federation)

    2011-04-15

    In this review we show that the multi-particle scattering amplitudes in N=4 SYM at large N{sub c} and in the multi-Regge kinematics for some physical regions have the high energy behavior appearing from the contribution of the Mandelstam cuts in the complex angular momentum plane of the corresponding t-channel partial waves. These Mandelstam cuts or Regge cuts are resulting from gluon composite states in the adjoint representation of the gauge group SU(N{sub c}). In the leading logarithmic approximation (LLA) their contribution to the six point amplitude is in full agreement with the known two-loop result. The Hamiltonian for the Mandelstam states constructed from n gluons in LLA coincides with the local Hamiltonian of an integrable open spin chain. We construct the corresponding wave functions using the integrals of motion and the Baxter-Sklyanin approach. (orig.)

  1. 1-loop graphs and configuration space integral for embedding spaces

    CERN Document Server

    Sakai, Keiichi

    2010-01-01

    We will construct differential forms on the embedding spaces using configuration space integral associated with 1-loop graphs. In particular, for any pair n, j of positive integers with n-j>=2, we show that some linear combination of such differential forms together with some correction terms coming from a 1-parameter family of immersions gives a closed form on the space fEmb(R^j,R^n) of embeddings with 1-parameter families of immersions to the trivial. We also show that the closed forms obtained detect nontrivial elements of the real homology of the embedding space fEmb(R^j,R^n).

  2. Configuration Management Program - a part of Integrated Management System

    International Nuclear Information System (INIS)

    The recently issued International Atomic Energy Agency (IAEA) publications (GS-R-3, GS-G-3.1 and GS-G-3.5) regarding Management Systems for Facilities and Activities define requirements for creation, introduction, evaluation and continuously improvement of the Management System, which unifies the safety, health, environment, security, quality and economic elements. According to GS-R-3 the Integrated Management System is based on defined processes identified in the enterprises: Managing, Basic and Supporting processes. At implementation of their activities, the organizations often apply other standards in their interrelations with suppliers and the parties concerned - ISO 9001:2008, ISO 14001:2004 and OHSAS 18001:2007, regarding quality, environment and occupational health and safety management. The integration of the standards of both series ensure the observance of the common management principles that reflect the best practices of management as leadership, participation of the people, process approach, continuously improvement, systematical approach to the management and approach based on facts used at the making decisions. The main objective of the Integrated Management System introduction is to ensure safety considering the influence of all additional impacts taken together. The Integrated Management System is based on the process approach at implementation of the activities in nuclear power plant. The transition to the process oriented approach require long period of time, during which the distribution of the responsibilities is optimized up to the level that will satisfy the requirements, reach and maintain the stipulated objectives. The Configuration Management (CM) is an integrated management process by means of which conformity between design requirements, physical configuration and the plant documentation is ascertained and maintained during the entire life cycle of the facility. Processes within configuration management are not isolated, but are part of

  3. Using MDA for integration of heterogeneous components in software supply chains

    NARCIS (Netherlands)

    Hartmann, Herman; Keren, Mila; Matsinger, Aart; Rubin, Julia; Trew, Tim; Yatzkar-Haham, Tali

    2013-01-01

    Software product lines are increasingly built using components from specialized suppliers. A company that is in the middle of a supply chain has to integrate components from its suppliers and offer (partially configured) products to its customers. To satisfy both the variability required by each cus

  4. Learning to Integrate: Supply Chains Reconceptualised

    Science.gov (United States)

    Sense, Andrew J.; Clements, Michael D. J.

    2007-01-01

    This paper introduces and explains a conception of supply chains from a situated learning perspective. This non-conventional supply chain perspective invites the reader to consider supply chain scenarios as "situated learning opportunities involving multiple communities of practice" interacting and participating together. It is argued that by…

  5. Risk and Work Configuration Management as a Function of Integrated Safety Management

    International Nuclear Information System (INIS)

    National Security Technologies, LLC (NSTec), has established a work management program and corresponding electronic Facilities and Operations Management Information System (e-FOM) to implement Integrated Safety Management (ISM). The management of work scopes, the identification of hazards, and the establishment of implementing controls are reviewed and approved through electronic signatures. Through the execution of the program and the implementation of the electronic system, NSTec staff work within controls and utilize feedback and improvement process. The Integrated Work Control Manual further implements the five functions of ISM at the Activity level. By adding the Risk and Work Configuration Management program, NSTec establishes risk acceptance (business and physical) for liabilities within the performance direction and work management processes. Requirements, roles, and responsibilities are specifically identified in the program while e-FOM provides the interface and establishes the flowdown from the Safety Chain to work and facilities management processes to company work-related directives, and finally to Subject Matter Expert concurrence. The Program establishes, within the defined management structure, management levels for risk identification, risk mitigation (controls), and risk acceptance (business and physical) within the Safety Chain of Responsibility. The Program also implements Integrated Safeguards and Security Management within the NSTec Safety Chain of Responsibility. Once all information has been entered into e-FOM, approved, and captured as data, the information becomes searchable and sortable by hazard, location, organization, mitigating controls, etc

  6. Energy transport between two integrable spin chains

    Science.gov (United States)

    Biella, Alberto; De Luca, Andrea; Viti, Jacopo; Rossini, Davide; Mazza, Leonardo; Fazio, Rosario

    2016-05-01

    We study the energy transport in a system of two half-infinite XXZ chains initially kept separated at different temperatures, and later connected and let free to evolve unitarily. By changing independently the parameters of the two halves, we highlight, through bosonization and time-dependent matrix-product-state simulations, the different contributions of low-lying bosonic modes and of fermionic quasiparticles to the energy transport. In the simulations we also observe that the energy current reaches a finite value which only slowly decays to zero. The general picture that emerges is the following. Since integrability is only locally broken in this model, a preequilibration behavior may appear. In particular, when the sound velocities of the bosonic modes of the two halves match, the low-temperature energy current is almost stationary and described by a formula with a nonuniversal prefactor interpreted as a transmission coefficient. Thermalization, characterized by the absence of any energy flow, occurs only on longer time scales which are not accessible with our numerics.

  7. Ranking of integration factors within supply chains of forward and backward types - recommendations from researches

    Directory of Open Access Journals (Sweden)

    Bernd Hentschel

    2015-06-01

    Full Text Available Background: Integration trends are one of main determinants of the development of modern logistics. After the period of interest focused mainly on supply chains realizing one-way flows only, at present there is a time for supply chains characterized by two-way flows, realizing at the same time both forward and backward flows. The possibility of various configurations of such chains requires identification of integration factors and determination of their influence on the results of the whole supply chain. Experiences of the science as well as the practice of supply chains show the urgent need of learning of reasons of the integration within supply chains of the two-way type.  Material and methods: The researches on modeling and simulation of integration processes within supply chains of forward and backward type were carried out in the environment of iGrafx Process 2013 for Six Sigma. The empirical material obtained in these researches was put to the statistical analysis by the used of Minitab 17. The identification of the significance of differences was made with the help of analysis of variance ANOVA. Additionally the analysis of differences in form of absolute averages was made.  The following measures are main ones for the evaluation of the integration of a supply chain of forward and backward types: cashflow, profitability, service level.  Results: 8 192 simulation experiments were made for 6 integration factors: accessibility of recycled materials, production planning, stock management, integration of transport, unification of packing materials and optimization of the material flow. Based on the analysis of the significance and values of differences, the results of the influence of each integration factor on global results of supply chains of forward and backward type were obtained. They were used to prepare the ranking of integration factors. The main factors, forming the integration shape of two-way supply chains were: stock

  8. A structural approach to supply chain integration process

    OpenAIRE

    Shpetim Cerri

    2014-01-01

    The competitiveness and dynamics of business environment today expose firms to many challenges. They are part of a whole chain of entities and activities that create goods and services and make them available to customers. Implementation of supply chain management techniques requires thorough integration of processes between supply chain partners in all functional areas, including sourcing, manufacturing, and distribution. This study uses a structural approach to measure supply chain integrat...

  9. Long-chain acyl-homoserine lactones from Methylobacterium mesophilicum: synthesis and absolute configuration.

    Science.gov (United States)

    Pomini, Armando M; Cruz, Pedro L R; Gai, Cláudia; Araújo, Welington L; Marsaioli, Anita J

    2009-12-01

    The acyl-homoserine lactones (acyl-HSLs) produced by Methylobacterium mesophilicum isolated from orange trees infected with the citrus variegated chlorosis (CVC) disease have been studied, revealing the occurrence of six long-chain acyl-HSLs, i.e., the saturated homologues (S)-N-dodecanoyl (1) and (S)-N-tetradecanoyl-HSL (5), the uncommon odd-chain N-tridecanoyl-HSL (3), the new natural product (S)-N-(2E)-dodecenoyl-HSL (2), and the rare unsaturated homologues (S)-N-(7Z)-tetradecenoyl (4) and (S)-N-(2E,7Z)-tetradecadienyl-HSL (6). The absolute configurations of all HSLs were determined as 3S. Compounds 2 and 6 were synthesized for the first time. Antimicrobial assays with synthetic acyl-HSLs against Gram-positive bacterial endophytes co-isolated with M. mesophilicum from CVC-infected trees revealed low or no antibacterial activity. PMID:19919062

  10. System Dynamics Model for VMI&TPL Integrated Supply Chains

    OpenAIRE

    Guo Li; Xiaojing Wang; Zhaohua Wang

    2013-01-01

    This paper establishes VMI-APIOBPCS II model by extending VMI-APIOBPCS model from serial supply chain to distribution supply chain. Then TPL is introduced to this VMI distribution supply chain, and operational framework and process of VMI&TPL integrated supply chain are analyzed deeply. On this basis VMI-APIOBPCS II model is then changed to VMI&TPL-APIOBPCS model and VMI&TPL integrated operation mode is simulated. Finally, compared with VMI-APIOBPCS model, the TPL’s important role of goods co...

  11. Supply Chain Management and Sustainability: Procrastinating Integration in Mainstream Research

    Directory of Open Access Journals (Sweden)

    Marisa P. de Brito

    2010-03-01

    Full Text Available Research has pointed out opportunities and research agendas to integrate sustainability issues with supply chain and operations management. However, we find that it is still not mainstream practice to systematically take a sustainability approach in tackling supply chain and operations management issues. In this paper, we make use of behavioral theory to explain the current lack of integration. We conclude through abductive reasoning that the reasons for procrastinating integration of sustainability in supply chain and operations management research are the conflicting nature of the task and the inherent context, which is the focus on operations rather than environmental or social issues.

  12. System Dynamics Model for VMI&TPL Integrated Supply Chains

    Directory of Open Access Journals (Sweden)

    Guo Li

    2013-01-01

    Full Text Available This paper establishes VMI-APIOBPCS II model by extending VMI-APIOBPCS model from serial supply chain to distribution supply chain. Then TPL is introduced to this VMI distribution supply chain, and operational framework and process of VMI&TPL integrated supply chain are analyzed deeply. On this basis VMI-APIOBPCS II model is then changed to VMI&TPL-APIOBPCS model and VMI&TPL integrated operation mode is simulated. Finally, compared with VMI-APIOBPCS model, the TPL’s important role of goods consolidation and risk sharing in VMI&TPL integrated supply chain is analyzed in detail from the aspects of bullwhip effect, inventory level, service level, and so on.

  13. Small Producers and Retailers Network Supply Chains Integration

    OpenAIRE

    Milan Davidovic

    2010-01-01

    The retailers network with e-supplying system can be main sales channel for small local and regional producers and their supply chain. Small producers and retailers network supply chains integration based on modern supply chain management systems (SCM) reduce cost of coordination, increase efficiency and effectiveness of logistics and retail, and create long-term mutual benefit relationship between small producers and retailers in logistics and retailing, branding and their impact on sustain ...

  14. GLOBAL INTEGRATION OF SUPPLY CHAINS IN TEXTILE/APPAREL INDUSTRY

    OpenAIRE

    Salman, Muhammad

    2006-01-01

    Supply chain management is important. It basically deals with the interconnection of an organization between the different processes that produce value in the form of products and services to the ultimate consumer. The final customer has the only real currency in the supply chain (Nigel S, Stuart C, Robert J; 2001). It has been established that effective supply chain management enables good and services to be produced more efficiently. This project is aimed to investigate the integration of t...

  15. Opportunities and realities of supply chain integration

    DEFF Research Database (Denmark)

    van Donk, Dirk Pieter; Akkerman, Renzo; van der Vaart, Taco

    2008-01-01

    in a wider context. Practical implications: Production managers and planners in food manufacturing are often aware of the described situation, but general managers, marketing managers, and supply chain managers can learn that there are limits to aligning operations to customers. The paper offers a number...

  16. Integrability of the Inozemtsev Spin Chain with Open Boundary Conditions

    Institute of Scientific and Technical Information of China (English)

    XUE Wei-Xing; WANG Yu-Peng

    2004-01-01

    @@ A long range interacting quantum spin chain with open boundary conditions is proposed. By constructing the reflection spin-Dunkl operators, the integrability of the model is proven. The model is therefore exactly solvable via the asymptotic Bethe ansatz method and falls into the universal class of the usual Heisenberg spin chain with boundary fields.

  17. Scenario analysis for supply chain integration in container shipping

    OpenAIRE

    Lam, J.S.L.; Van de Voorde, E.

    2011-01-01

    Competition in the business world nowadays is largely between supply chains, rather than individual players only. The same situation exists in container shipping. The study looks into container shipping from an integrated perspective and investigates the nature and level of supply chain integration in container shipping. Based on empirical examinations of the world's top 30 container shipping lines, a scenario analysis is conducted. The paper aims to present the scenario analysis for examinin...

  18. Supply chain planning with sustainability considerations: an integrative framework

    DEFF Research Database (Denmark)

    Wang, Yang; Akkerman, Renzo; Birkved, Morten;

    2011-01-01

    This paper proposes a modelling framework for combining supply chain planning and sustainability assessment, illustrating how sustainability assessments of logistic activities can be improved by supply chain planning input, and supply chain planning can in turn make use of the results from...... sustainability assessments. We use mathematical programming for the supply chain planning and life cycle assessment for the modelling and quantification of the environmental impacts. We illustrate the benefits of our integrated framework for a case of production, distribution and storage of food products...

  19. The integral cohomology groups of configuration spaces of pairs of points in real projective spaces

    CERN Document Server

    Gonzalez, Jesus

    2010-01-01

    We compute the integral homology and cohomology groups of configuration spaces of two distinct points on a given real projective space. The explicit answer is related to the (known multiplicative structure in the) integral cohomology---with simple and twisted coefficients---of the dihedral group of order 8 (in the case of unordered configurations) and the elementary abelian 2-group of rank 2 (in the case of ordered configurations).

  20. Integrating developing country manufacturing industries into global supply chain

    Directory of Open Access Journals (Sweden)

    Fasika Bete Georgise

    2014-01-01

    Full Text Available Purpose: Due to globalization of manufacturing activities, the arena of competition and competitiveness advantage is moving from firms towards supply chains and networks. With the recent advancement of information and communication technologies this participation are becoming as common business practice in developed countries firms. Companies were more integrated into the world market for the global nature of the sourcing, manufacturing and distribution. These changes create both challenges and opportunities for the manufacturing industries in developing countries. The objective of this paper is to examine the level of inter-organizational and intra-organizational supply chain integration practices in developing country, Ethiopia.Design/methodology/approach: An industrial questionnaires survey was used to collect the current practices of the manufacturing industries in Ethiopia as an example of the developing countries. Descriptive statistics is primarily used for the analysis.Findings: Results show a low level of supply chain relationship both in intra and inter organizational supply chain integration level among members. Accordingly, such issues require much attention to facilitate a greater integration within the supply chains in the Ethiopian manufacturing industries.Research limitations/implications: The paper focuses on examining the practices of Ethiopian manufacturing industries empirical data. The interpretation of results should be taken with prudence.Originality/Value: The manufacturing industry in developing countries (MIDC has been a part of the global supply chains for long time as a supplier of raw material and manufacturer of primary products. Currently, the MIDC is trying to access the different markets segment of the world even with new products starting from their local market to the complex and dynamic international market. Nevertheless, their supply chains are inefficient and hence, their competitiveness level far from the

  1. Using integrated information systems in supply chain management

    Science.gov (United States)

    Gonzálvez-Gallego, Nicolás; Molina-Castillo, Francisco-Jose; Soto-Acosta, Pedro; Varajao, Joao; Trigo, Antonio

    2015-02-01

    The aim of this paper is to empirically test not only the direct effects of information and communication technology (ICT) capabilities and integrated information systems (IS) on firm performance, but also the moderating role of IS integration along the supply chain in the relationship between ICT external and capabilities and business performance. Data collected from 102 large Iberian firms from Spain and Portugal are used to test the research model. The hierarchical multiple regression analysis is employed to test the direct effects and the moderating relationships proposed. Results show that external and internal ICT capabilities are important drivers of firm performance, while merely having integrated IS do not lead to better firm performance. In addition, a moderating effect of IS integration in the relationship between ICT capabilities and business performance is found, although this integration only contributes to firm performance when it is directed to connect with suppliers or customers rather than when integrating the whole supply chain.

  2. Integrated utilisation chains of second generation pyrolysis

    Energy Technology Data Exchange (ETDEWEB)

    Solantausta, Y.; Oasmaa, A.; Onarheim, K.; Soimakallio, S.; Kaelli, A. (VTT Technical Research Centre of Finland, Espoo (Finland)), Email: yrjo.solantausta@vtt.fi

    2010-10-15

    A new liquid biofuel concept is being developed, which is based on integrating a fluidised-bed boiler and fast pyrolysis. Bio-oil may be used in producing heat both for industry and communities. Improving product quality should make it possible later on also higher value uses. An emphasis in the work is placed in quality control of bio-oil production and fuel quality improvement. The work is carried out in three tasks: quality improvement, on-line measurements and markets for next generation bio-oils. The project supports industrial developments. (orig.)

  3. Achieving competitiveness through supply chain integration

    DEFF Research Database (Denmark)

    Wong, Chee Yew; Arlbjørn, Jan S.; Seerup, Søren

    2007-01-01

    of a Danish manufacturer that has gone through a major transformation process, and the paper intends to discuss how such a Business Process Reengineering (BPR) project aimed to achieve internal integration. The paper demonstrates how improved competitiveness can be obtained through a synchronous...... implementation of a new Enterprise Resource Planning (ERP) system together with BPR activities. From the very first day of the project, there was a clear focus on the construction and refinement of prototypes of core processes to meet competitive criteria. The paper provides further support for improving supply...

  4. Levels & Barriers to Supply Chain Integration: A conceptual model of Supply Chain Performance

    OpenAIRE

    RajaIrfan Sabir; Muhammad Irfan

    2014-01-01

    In modern business scenario Supply chain has become the back bone for every business organization. All supply chain partners are joined together in value delivery network of company that no one can perform better without support of other. The ultimate objective of this cohesive relationship is to deliver value to customers and gets desired state of customer satisfaction & loyalty for the organization. For this purpose it is necessary to integrate the internal and external partners of Supply c...

  5. SUPPLY CHAIN INFORMATION INTEGRATION THROUGH SERVICE ORIENTED ARCHITECTURE

    Directory of Open Access Journals (Sweden)

    Igor Milanovic

    2013-12-01

    Full Text Available In recent years information integration became significant problem for both natural and legal persons in everyday operations. Huge amount of information are available, but insufficiently processed in order to have useful value. Choosing the right combination of tools and technologies for integration is prerequisite for requiring information from multiple heterogeneous sources and their qualitative and simple using after.In this paper, we have focused on information integration within companies which are parts of supply chain or network. This environment typically includes a various mix of sources, structured (such as relational or other databases, and unstructured (such as document repositories, spreadsheets, documents, web pages, emails and others. Effective information integration and sharing significantly enhances supply chain practices. Service oriented architecture (SOA is an architectural style for building software applications that use services available in a network such as the web. The use of SOA to achieve inter-enterprise supply network information integration has many advantages.

  6. Integrated decision making for the optimal bioethanol supply chain

    International Nuclear Information System (INIS)

    Highlights: • Optimal allocation, design and production planning of integrated ethanol plants is considered. • Mixed Integer Programming model is presented for solving the integration problem. • Different tradeoffs can be assessed and analyzed. • The modeling framework represents an useful tool for guiding decision making. - Abstract: Bioethanol production poses different challenges that require an integrated approach. Usually previous works have focused on specific perspectives of the global problem. On the contrary, bioethanol, in particular, and biofuels, in general, requires an integrated decision making framework that takes into account the needs and concerns of the different members involved in its supply chain. In this work, a Mixed Integer Linear Programming (MILP) model for the optimal allocation, design and production planning of integrated ethanol/yeast plants is considered. The proposed formulation addresses the relations between different aspects of the bioethanol supply chain and provides an efficient tool to assess the global operation of the supply chain taking into account different points of view. The model proposed in this work simultaneously determines the structure of a three-echelon supply chain (raw material sites, production facilities and customer zones), the design of each installed plant and operational considerations through production campaigns. Yeast production is considered in order to reduce the negative environmental impact caused by bioethanol residues. Several cases are presented in order to assess the approach capabilities and to evaluate the tradeoffs among all the decisions

  7. The integral cohomology of configuration spaces of pairs of points in real projective spaces

    CERN Document Server

    Dominguez, Carlos; Landweber, Peter

    2011-01-01

    We compute the integral cohomology ring of configuration spaces of two points on a given real projective space. Apart from an integral class, the resulting ring is a quotient of the known integral cohomology of the dihedral group of order 8 (in the case of unordered configurations, thus has only 2- and 4-torsion) or of the elementary abelian 2-group of rank 2 (in the case of ordered configurations, thus has only 2-torsion). As an application, we complete the computation of the symmetric topological complexity of real projective spaces of dimensions of the form 2^i+j for non-negative i and j with j<3.

  8. [Application of supply chain integration management of medical consumables].

    Science.gov (United States)

    Zhang, Jian

    2013-07-01

    This paper introduces the background, the content, the information management system of material supply chain integration management and the consumables management process. The system helps to expand the selection of hospital supplies varieties, to reduce consumables management costs, to improve the efficiency of supplies, to ensure supplies safety, reliability and traceability.

  9. Expansion of single-link integrals around a saddle-point configuration

    Science.gov (United States)

    Brihaye, Y.; Taormina, A.

    1985-12-01

    Considering the single-link integrals arising in the mean-field approach of lattice spin and gauge models, we present a simple method to develop these integrals in powers of a fluctuation around the relevant mean-field saddle-point configurations. We illustrate the method by computing four orders in the large-N limit of the U(N) group integral.

  10. Expansion of single-link integrals around a saddle-point configuration

    Energy Technology Data Exchange (ETDEWEB)

    Brihaye, Y.; Taormina, A.

    1985-12-15

    Considering the single-link integrals arising in the mean-field approach of lattice spin and gauge models, we present a simple method to develop these integrals in powers of a fluctuation around the relevant mean-field saddle-point configurations. We illustrate the method by computing four orders in the large-N limit of the U(N) group integral.

  11. Optimal configuration of an integrated power and transport system

    DEFF Research Database (Denmark)

    Juul, Nina; Meibom, Peter

    2011-01-01

    Integrating the power and transport system, in the future energy system planning, influences the economically optimal investments and optimal operation of the power system as well as the transport system. For analysing the integrated power and transport system a new model capable of calculating...... optimal investments in both power plants and vehicle technologies is presented in this article. The model includes the interactions between the power system and the transport system including the competition between flexibility measures such as hydrogen storage in combination with electrolysis, heat...

  12. The configurations of a FENE bead-spring chain in transient rheological flows and in a turbulent flow

    Science.gov (United States)

    Massah, Heshmat; Kontomaris, Kostas; Schowalter, William R.; Hanratty, Thomas J.

    1993-04-01

    The changes in the configuration of a FENE bead-spring chain in a direct numerical simulation of turbulent channel flow and in some simple rheological flows are examined. Unraveling occurs both in uniaxial and shear flows, but the uniaxial flow is more effective. A vortex with a large rotation rate perpendicular to the principal strain of a uniaxial flow has only a minor retarding effect while a small rotation rate delays the unraveling substantially. In a turbulent flow, the chain unravels the most in the viscous sublayer, to about 90% of its fully extended length. It aligns at a 7° angle with the direction of mean flow. In the buffer zone, it unravels and coils up and takes different orientations at different times. Outside the wall region, the chain assumes a coiled configuration. The unraveling of the chain strongly depends on the relaxation time of the chain normalized with the wall shear rate, λ+. A value of λ+=10 exhibits strong unraveling while very weak unraveling is observed below λ+=1.

  13. The Influence of Supply Chain Integration on the Intrapreneurship in Supply Chain Management (SCM

    Directory of Open Access Journals (Sweden)

    FatemehAshrafganjouei,

    2015-12-01

    Full Text Available These days, SMEs pay a lot of attention to concept of Supply Chain Management (SCM in order to achieve competitiveness. The logic behind such act is integrating the activities of value creation within any kind of organizational context. Such integrity would collaborate with managers to accomplish the competitive edge that they are aiming to achieve. The goal of current research is to identify scopes of a unique construct which is known as Entrepreneurial Supply Chain Management competency. Therefore, the notions of SCM and entrepreneurship are being aligned together for evaluating the organizational performance. The outcomes demonstrate that SCM in fact is a critical issue that can alter the organizational performance, thus, through consideration of SCM, we should focus on supply chain integration and its impacts on intrapreneurship and innovation of an organization. In order to be successful in such competitive context, SMEs need to provide novel competences which are not imitable and to increase their application in supply chain and also to improve their total performance.

  14. Efficiency and Integration in the Food Supply Chain

    Directory of Open Access Journals (Sweden)

    Sebastian Jarzebowski

    2013-11-01

    Full Text Available Due to the nature of the food supply chain, an increase of the integration's degree in the chain may be an important aspect in the context of increasing the efficiency of agri-food companies. Therefore, exploring the relationships among these variables was found as an important research area and adopted as the goal of the paper. The paper is focused mainly on the theoretical background showing the relationship between integration and performance. A description of the theoretical and methodological aspects of performance measurement and its extension (including the integration aspect was also made within the framework of the paper.For an empirical illustration of the analyzed relationships two steps were made. Firstly, the integration's degree in the food chain was measured. Secondly, the efficiency of the companies from the cereals processing industry in Europe was assessed. The SFA models (e.g. Translog and Cobb-Douglas functional form were used for assessment of efficiency. By using stochastic method (e.g. the SFA, Stochastic Frontier Analysis, one may show the influence of external variable (the integration in the supply chain on the efficiency performance of enterprises. Efficiency of economic entities is not an unambiguous term. There are several different concepts of efficiency, its measurement and expressions. Within the framework of efficiency, many terms of similar meaning may be applied. However, these concepts are not identical. The actual concept of efficiency is derived from the structure of the production function, therefore it is conditioned by changes in the productivity of production factors and their remuneration and refers to the allocation of production factors in the most technically efficient way.

  15. A Multi-parameter Model for Effective Configuration of Supply Chains

    OpenAIRE

    Alfredo Lambiase; Alessandro Lambiase; Raffaele Iannone; Salvatore Miranda; Pham, Duc T.

    2015-01-01

    In this paper, a mathematical model for the strategic planning and design of supply chains in the globalization context is proposed. A multi-objective function is used to address decisions about capacity sizing, sourcing, and facility location, with the scope of maximizing supply chain profits. The model is dynamic and is applied to a multi-echelon, multi-facility and multi-product supply chain in hypotheses of delocalization. The model is characterized by the specific attention given to cost...

  16. Integral-Operator Analysis of Layered Media and Integrated Microstrip Configurations.

    Science.gov (United States)

    Yuan, Yi.

    This dissertation presents a rigorous full-wave integral operator formulation for electromagnetic interactions among microstrip configurations in the layered environment, and a comprehensive study on one of the most essential elements in microwave and millimeter-wave integrated circuits (MMIC's), the microstrip transmission lines. Broad electromagnetic phenomena associated with microstrip transmission lines, including their propagation spectrum, dispersion characteristics, coupling effects, current distributions, characteristic impedances, losses and leakage and/or radiation properties are investigated via the integral equation approach. First, dyadic Green's functions are developed for layered media with both dielectric and magnetic contrast. Based on the Green's functions, an electric field integral equation (EFIE) description for general microstrip circuits is developed, and then applied to microstrip transmission lines. The complete propagation-mode spectrum of microstrip line is identified and an excitation and coupling theory is developed. Propagation modes on isolated and coupled microstrip transmission lines are studied in details. Numerical solutions to the EFIE's are implemented by Galerkin's method of moments. Chebyshev polynomials with square-root edge factors are utilized as basis functions. An accurate circuit modeling of the non-TEM microstrip line structure is described and a full -wave analysis for the characteristic impedance is developed. Also, a EFIE-based full-wave perturbation theory for N coupled microstrip transmission lines is presented. An experimental verification is carried out and the theoretical and experimental results are in a good agreement. Much effort is made in this thesis in developing a unified, consistent, complex integral equation-formulation which correctly handles the problem of general lossy and leaky microstrip lines. In discussions of the bound waveguiding modes and the non-spectral radiative leaky modes, the propagation

  17. Configurable hardware integrate and fire neurons for sparse approximation.

    Science.gov (United States)

    Shapero, Samuel; Rozell, Christopher; Hasler, Paul

    2013-09-01

    Sparse approximation is an important optimization problem in signal and image processing applications. A Hopfield-Network-like system of integrate and fire (IF) neurons is proposed as a solution, using the Locally Competitive Algorithm (LCA) to solve an overcomplete L1 sparse approximation problem. A scalable system architecture is described, including IF neurons with a nonlinear firing function, and current-based synapses to provide linear computation. A network of 18 neurons with 12 inputs is implemented on the RASP 2.9v chip, a Field Programmable Analog Array (FPAA) with directly programmable floating gate elements. Said system uses over 1400 floating gates, the largest system programmed on a FPAA to date. The circuit successfully reproduced the outputs of a digital optimization program, converging to within 4.8% RMS, and an objective cost only 1.7% higher on average. The active circuit consumed 559 μA of current at 2.4 V and converges on solutions in 25 μs, with measurement of the converged spike rate taking an additional 1 ms. Extrapolating the scaling trends to a N=1000 node system, the spiking LCA compares favorably with state-of-the-art digital solutions, and analog solutions using a non-spiking approach.

  18. Industry and chain responsibilities and integrative social contract theory

    OpenAIRE

    2010-01-01

    This article shows that business ethics is not capable of explaining the responsibility of limited organized collectives such as chains, sectors and industries. The responsibility of the pharmaceutical industry to make AIDSblockers available for patients in Africa is an example of such a sector responsibility. By using system theory it is possible to understand responsibility at the level of a social system. The Integrative Social Contract Theory has been extended to determine this system&rsq...

  19. Integrated Lot Sizing in Serial Supply Chains with Production Capacities

    OpenAIRE

    Romero-Morales, Dolores; Wagelmans, Albert; Romeijn, H. Edwin; Hoesel, Stan van

    2005-01-01

    We consider a model for a serial supply chain in which production, inventory, and transportation decisions are integrated in the presence of production capacities and concave cost functions. The model we study generalizes the uncapacitated serial single-item multilevel economic lot-sizing model by adding stationary production capacities at the manufacturer level. We present algorithms with a running time that is polynomial in the planning horizon when all cost functions are concave. In additi...

  20. A heat & mass integration approach to reduce capital and operating costs of a distillation configuration

    Energy Technology Data Exchange (ETDEWEB)

    Madenoor Ramapriya, Gautham [Purdue University; Jiang, Zheyu [Purdue University; Tawarmalani, Mohit [Purdue University; Agrawal, Rakesh [Purdue University

    2015-11-11

    We propose a general method to consolidate distillation columns of a distillation configuration using heat and mass integration. The proposed method encompasses all heat and mass integrations known till date, and includes many more. Each heat and mass integration eliminates a distillation column, a condenser, a reboiler and the heat duty associated with a reboiler. Thus, heat and mass integration can potentially offer significant capital and operating cost benefits. In this talk, we will study the various possible heat and mass integrations in detail, and demonstrate their benefits using case studies. This work will lay out a framework to synthesize an entire new class of useful configurations based on heat and mass integration of distillation columns.

  1. Designing a Fuzzy Strategic Integrated Multiechelon Agile Supply Chain Network

    Directory of Open Access Journals (Sweden)

    Morteza Abbasi

    2013-01-01

    Full Text Available This paper integrates production, distribution and logistics activities at the strategic decision making level, where the objective is to design a multiechelon supply chain network considering agility as a key design criterion. A network with five echelons of supply chains including suppliers, plants, distribution centers, cross-docks, and customer zones is addressed in this paper. The problem has been mathematically formulated as a biobjective optimization model that aims to minimize the cost (fixed and variable and maximize the plant flexibility and volume flexibility. A novel multiobjective parallel simulating annealing algorithm (MOPSA is proposed to obtain the Pareto-optimal solutions of the problem. The performance of the proposed solution algorithm is compared with two well-known metaheuristics, namely, nondominated sorting genetic algorithm (NSGA-II and Pareto archive evolution strategy (PAES. Computational results show that MOPSA outperforms the other metaheuristics.

  2. Integrated strategic and tactical biomass-biofuel supply chain optimization.

    Science.gov (United States)

    Lin, Tao; Rodríguez, Luis F; Shastri, Yogendra N; Hansen, Alan C; Ting, K C

    2014-03-01

    To ensure effective biomass feedstock provision for large-scale biofuel production, an integrated biomass supply chain optimization model was developed to minimize annual biomass-ethanol production costs by optimizing both strategic and tactical planning decisions simultaneously. The mixed integer linear programming model optimizes the activities range from biomass harvesting, packing, in-field transportation, stacking, transportation, preprocessing, and storage, to ethanol production and distribution. The numbers, locations, and capacities of facilities as well as biomass and ethanol distribution patterns are key strategic decisions; while biomass production, delivery, and operating schedules and inventory monitoring are key tactical decisions. The model was implemented to study Miscanthus-ethanol supply chain in Illinois. The base case results showed unit Miscanthus-ethanol production costs were $0.72L(-1) of ethanol. Biorefinery related costs accounts for 62% of the total costs, followed by biomass procurement costs. Sensitivity analysis showed that a 50% reduction in biomass yield would increase unit production costs by 11%.

  3. Production chains as configurations for development : perspectives for innovation, market development and collaboration

    NARCIS (Netherlands)

    Vellema, S.

    2006-01-01

    Perspectives for innovation, market development and collaboration1Seeing chains for agricultural and food products as a possible instrument for development processes in the South opens up an important discussion about the institutional architecture of agricultural development. One of the major reaso

  4. Reliability modelling - PETROBRAS 2010 integrated gas supply chain

    Energy Technology Data Exchange (ETDEWEB)

    Faertes, Denise; Heil, Luciana; Saker, Leonardo; Vieira, Flavia; Risi, Francisco; Domingues, Joaquim; Alvarenga, Tobias; Carvalho, Eduardo; Mussel, Patricia

    2010-09-15

    The purpose of this paper is to present the innovative reliability modeling of Petrobras 2010 integrated gas supply chain. The model represents a challenge in terms of complexity and software robustness. It was jointly developed by PETROBRAS Gas and Power Department and Det Norske Veritas. It was carried out with the objective of evaluating security of supply of 2010 gas network design that was conceived to connect Brazilian Northeast and Southeast regions. To provide best in class analysis, state of the art software was used to quantify the availability and the efficiency of the overall network and its individual components.

  5. Metastable configurations of a finite-size chain of classical spins within the one-dimensional chiral XY-model

    Science.gov (United States)

    Popov, Alexander P.; Gloria Pini, Maria; Rettori, Angelo

    2016-03-01

    The metastable states of a finite-size chain of N classical spins described by the chiral XY-model on a discrete one-dimensional lattice are calculated by means of a general theoretical method recently developed by one of us. This method allows one to determine all the possible equilibrium magnetic states in an accurate and systematic way. The ground state of a chain consisting of N classical XY spins is calculated in the presence of (i) a symmetric ferromagnetic exchange interaction, favoring parallel alignment of nearest neighbor spins, (ii) a uniaxial anisotropy, favoring a given direction in the film plane, and (iii) an antisymmetric Dzyaloshinskii-Moriya interaction (DMI), favoring perpendicular alignment of nearest neighbor spins. In addition to the ground state with a non-uniform helical spin arrangement, which originates from the energy competition in the finite-size chain with open boundary conditions, we have found a considerable number of higher-energy equilibrium states. In the investigated case of a chain with N=10 spins and a DMI much smaller than the in-plane uniaxial anisotropy, it turns out that a metastable (unstable) state of the finite chain is characterized by a configuration where none (at least one) of the inner spins is nearly parallel to the hard axis. The role of the DMI is to establish a unique rotational sense for the helical ground state. Moreover, the number of both metastable and unstable equilibrium states is doubled with respect to the case of zero DMI. This produces modifications in the Peierls-Nabarro potential encountered by a domain wall during its displacement along the discrete spin chain.

  6. Thermal radiation in non-static curved spacetimes: quantum mechanical path integrals and configuration space topology

    OpenAIRE

    M.E. Ortiz; Vendrell, F.

    1997-01-01

    A quantum mechanical path integral derivation is given of a thermal propagator in non-static Gui spacetime. The thermal nature of the propagator is understood in terms of homotopically non-trivial paths in the configuration space appropriate to tortoise coordinates. The connection to thermal emission from collapsing black holes is discussed.

  7. Supply chain integration scales validation and benchmark values

    Directory of Open Access Journals (Sweden)

    Juan A. Marin-Garcia

    2013-06-01

    Full Text Available Purpose: The clarification of the constructs of the supply chain integration (clients, suppliers, external and internal, the creation of a measurement instrument based on a list of items taken from earlier papers, the validation of these scales and a preliminary benchmark to interpret the scales by percentiles based on a set of control variables (size of the plant, country, sector and degree of vertical integration. Design/methodology/approach: Our empirical analysis is based on the HPM project database (2005-2007 timeframe. The international sample is made up of 266 plants across ten countries: Austria, Canada, Finland, Germany, Italy, Japan, Korea, Spain, Sweden and the USA. In each country. We analized the descriptive statistics, internal consistency testing to purify the items (inter-item correlations, Cronbach’s alpha, squared multiple correlation, corrected item-total correlation, exploratory factor analysis, and finally, a confirmatory factor analysis to check the convergent and discriminant validity of the scales. The analyses will be done with the SPSS and EQS programme using the maximum likelihood parameter estimation method. Findings: The four proposed scales show excellent psychometric properties. Research limitations/implications: with a clearer and more concise designation of the supply chain integration measurement scales more reliable and accurate data could be taken to analyse the relations between these constructs with other variables of interest to the academic l fields. Practical implications: providing scales that are valid as a diagnostic tool for best practices, as well as providing a benchmark with which to compare the score for each individual plant against a collection of industrial companies from the machinery, electronics and transportation sectors. Originality/value: supply chain integration may be a major factor in explaining the performance of companies. The results are nevertheless inconclusive, the vast range

  8. Configuration space integrals and the cohomology of the space of homotopy string links

    CERN Document Server

    Munson, Brian A

    2011-01-01

    Configuration space integrals have in recent years been used for studying the cohomology of spaces of (string) knots and links in $\\mathbb{R}^n$ for $n>3$ since they provide a map from a certain differential algebra of diagrams to the deRham complex of differential forms on the spaces of knots and links. We refine this construction so that it now applies to the space of homotopy string links -- the space of smooth maps of some number of copies of $\\mathbb{R}$ in $\\mathbb{R}^n$ with fixed behavior outside a compact set and such that the images of the copies of $\\R$ are disjoint -- even for $n=3$. We further study the case $n=3$ in degree zero and show that our integrals represent a universal finite type invariant of the space of classical homotopy string links. As a consequence, we obtain configuration space integral expressions for Milnor invariants of string links.

  9. Supply chain managers: professional profile and the role in the cross-functional integration of supply chain management

    OpenAIRE

    Abreu, Andréia de; Alcântara, Rosane Lúcia Chicarelli

    2015-01-01

    Supply Chain Management can be seen as a way to achieve integration of all corporate functions. In practice, Supply Chain Management is complex and characterized by numerous activities spread over multiple functions and organizations, which pose challenges to reach effective implementation. Based on literature review, the objective of this paper is to present the theoretical indications regarding professional profile recommended for the Supply Chain Management and discuss the role of these pr...

  10. SUPPLY CHAIN MANAGERS: PROFESSIONAL PROFILE AND THE ROLE IN THE CROSS-FUNCTIONAL INTEGRATION OF SUPPLY CHAIN MANAGEMENT

    OpenAIRE

    Andréia Abreu; Rosane Lúcia Chicarelli Alcântara

    2015-01-01

    Supply Chain Management can be seen as a way to achieve integration of all corporate functions. In practice, Supply Chain Management is complex and characterized by numerous activities spread over multiple functions and organizations, which pose challenges to reach effective implementation. Based on literature review, the objective of this paper is to present the theoretical indications regarding professional profile recommended for the Supply Chain Management and discuss the role of these pr...

  11. Multi-variant configurations of supply chains in the context of synchromodal transport

    Directory of Open Access Journals (Sweden)

    Joanna Pleszko

    2012-12-01

    Full Text Available Background: Transport needs are specific expectations of business organizations and depend on customers' preferences, availability of supra- and infrastructure and ecological awareness. This study aims at outlining global efforts towards sustainable development by utilizing transport means with optimized solutions and specific advantages of each transport mode. Novel concepts within multi-variant transport, such as co-modal or synchromodal transport, make up a basis for creating a higher standard of process organization, characterized by individual customized solutions. Material and methods: Have been described the features and main characteristics of modern concepts synchromodal transport and identifies differences in relation to the well-known multimodal system. The paper presents a statistical analysis of the share of various modes of transport in intermodal transport in the last ten years. Conducted the examination of the significance of quality features of transport services on a sample of 613 companies chosen deliberately. The collected data were analyzed using two marking scales indicated determinants of composite supply chain. Results and conclusions: The presented analysis of transport service qualities in the context of prospective synchromodal transport included participants of complex supply chains. The results show that they aim towards improvement of relations, co-operation and partnership in future process-related and strategic solutions.

  12. Adoption of GM technology in livestock production chains: an integrating framework

    NARCIS (Netherlands)

    Novoselova, T.; Meuwissen, M.P.M.; Huirne, R.B.M.

    2007-01-01

    This paper presents an integrating framework for analysing the adoption of new technologies in food chains. We review the literature on the adoption of genetic modification in livestock production chains and conclude that an integrated chain approach is currently lacking. Such an approach is, howeve

  13. Strategies for integrating design and construction and operations and maintenance supply chains in Singapore

    OpenAIRE

    Ling, FYY; Toh, BGY; Kumaraswamy, MM; Wong, KWK

    2014-01-01

    Purpose – The purpose of this paper is to investigates strategies for achieving better integration between the design and construction (DC) and operation and maintenance (OM) supply chains in Singapore. The specific objectives are to: discover the goals that stakeholders want to achieve in integrating the supply chains; identify the stakeholders that play important integration role in each supply chain; and investigate the effective strategies that may yield better integration of the supply ...

  14. Integrating the processes of a Kraft pulp and paper mill and its supply chain

    International Nuclear Information System (INIS)

    Highlights: • A process integration model that establishes material stream connections among typical Nordic forest industries is developed. • Potential benefit of the operating the different industries in one site is studied using pinch analysis. • Different scenarios considered to assess impact of prioritization on how to utilize excess biomass. • Results indicate large potential for improved biomass resource utilization. - Abstract: This paper investigates the possibility of combining different forest industries (a pulp and paper mill, its supply chain, and a wood-pellet plant) into an integrated industrial site in which they share a common heat and power utility. Advanced process integration and optimization techniques are used to study the site from both material and energy viewpoints. An existing pulp and paper mill is used as the site core plant and its pulp and paper production rates are kept fixed as they are in reality, while the other material flow links among the plants are based on the current industrial situation in Sweden. Different scenarios are evaluated in order to reflect the two main objectives that can be pursued (increased electricity production or biomass resource saving) and the two technologies that can be considered for the shared CHP system (boilers and product gas fired gas turbines). The corresponding non-integrated (standalone) configurations are compared to these scenarios to quantify the potential benefits of the integration. Investment opportunity is also calculated for the considered scenarios as an indicator of the economic convenience

  15. Integrated strategic and tactical biomass-biofuel supply chain optimization.

    Science.gov (United States)

    Lin, Tao; Rodríguez, Luis F; Shastri, Yogendra N; Hansen, Alan C; Ting, K C

    2014-03-01

    To ensure effective biomass feedstock provision for large-scale biofuel production, an integrated biomass supply chain optimization model was developed to minimize annual biomass-ethanol production costs by optimizing both strategic and tactical planning decisions simultaneously. The mixed integer linear programming model optimizes the activities range from biomass harvesting, packing, in-field transportation, stacking, transportation, preprocessing, and storage, to ethanol production and distribution. The numbers, locations, and capacities of facilities as well as biomass and ethanol distribution patterns are key strategic decisions; while biomass production, delivery, and operating schedules and inventory monitoring are key tactical decisions. The model was implemented to study Miscanthus-ethanol supply chain in Illinois. The base case results showed unit Miscanthus-ethanol production costs were $0.72L(-1) of ethanol. Biorefinery related costs accounts for 62% of the total costs, followed by biomass procurement costs. Sensitivity analysis showed that a 50% reduction in biomass yield would increase unit production costs by 11%. PMID:24508904

  16. Interaction of systems integration, assembly, disassembly and maintenance in developing the INTOR-NET mechanical configuration

    Energy Technology Data Exchange (ETDEWEB)

    Farfaletti-Casali, F.; Booker, D.; Buzzi, U.; Casini, G.; Gritzmann, P. (Commission of the European Communities, Ispra (Italy). Joint Research Centre); Cardella, A. (Nucleare Italiana Reattori Avanzati S.p.A. (NIRA), Genoa)

    1984-04-01

    The driving concepts of systems integration, based on assembly, disassembly and maintenance requirements which define the mechanical configuration of INTOR (a world-wide conceptual study of an experimental Tokamak-type power fusion reactor of the next generation), are presented as the starting point for the studies carried out in this field at JRC-Ispra. Complementary new developments recently incorporated into the European version of INTOR, referred to as INTOR-NET, are described in detail and compared with the original concepts. The aim in INTOR-NET has been to reduce the physical size of the reactor while retaining similar plasma parameters. New systems integration and mechanical configuration concepts are introduced which can be used in future investigations for the NET design as alterantive options. Further reductions in reactor and/or improvements in the maintenance approach appear possible.

  17. Semi-classical locality for the non-relativistic path integral in configuration space

    CERN Document Server

    Gomes, Henrique

    2015-01-01

    In an accompanying paper, we have put forward an interpretation of quantum mechanics grounded on a non-relativistic Lagrangian 3+1 formalism of a closed Universe, existing on timeless configuration space. However, not much was said there about the role of locality, which was not assumed. In this paper, I describe how subsystems existing in (spatial) regions with fixed boundary conditions can be represented as submanifolds of the complete configuration space. I show that if the action functional can be put in the form of Riemannian distance element, then dynamical independence of the subsystem implies that the respective submanifolds are totally geodesic. When two regions are mutually independent the semi-classical path integral kernel factorizes, showing cluster decomposition. To exemplify these constructions I then construct a specific gravitational system with two propagating physical degrees of freedom and no refoliation-invariance. Finally, considering the path integral in this 3+1 context, I implement an...

  18. Plasmonic structure integrated single-photon detector configurations to improve absorptance and polarization contrast

    CERN Document Server

    Csete, Maria; Szenes, Andras; Szalai, Aniko; Szabo, Gabor

    2014-01-01

    Configurations capable of maximizing both absorptance and polarization contrast were determined for 1550 nm polarized light illumination of different plasmonic structure integrated superconducting nanowire single-photon detectors (SNSPDs) consisting of p=264 nm and P=792 nm periodic niobium-nitride (NbN) patterns on silica substrate. Global NbN absorptance maxima appear in case of p/s-polarized light illumination in S/P-orientation (gamma=90 azimuthal angle) and the highest polarization contrast is attained in S-orientation of all devices. Common nanophotonical origin of absorptance enhancement is collective resonance on nano-cavity-gratings with different profiles, which is promoted by coupling between localized modes in quarter wavelength MIM nano-cavities and laterally synchronized Brewster-Zenneck-type surface waves in integrated SNSPDs possessing a three-quarter-wavelength-scaled periodicity. The spectral sensitivity and dispersion characteristics reveal that device design specific optimal configurations...

  19. The quench action approach in finite integrable spin chains

    Science.gov (United States)

    Alba, Vincenzo; Calabrese, Pasquale

    2016-04-01

    We consider the problem of constructing the stationary state following a quantum quench, using the exact overlaps for finite size integrable models. We focus on the isotropic Heisenberg spin chain with initial state Néel or Majumdar–Ghosh (dimer), although the proposed approach is valid for an arbitrary integrable model. We consider only eigenstates which do not contain zero-momentum strings because the latter are affected by fictitious singularities that are very difficult to take into account. We show that the fraction of eigenstates that do not contain zero-momentum strings is vanishing in the thermodynamic limit. Consequently, restricting to this part of the Hilbert space leads to vanishing expectation values of local observables. However, it is possible to reconstruct the asymptotic values by properly reweighting the expectations in the considered subspace, at the price of introducing finite-size corrections. We also develop a Monte Carlo sampling of the Hilbert space which allows us to study larger systems. We accurately reconstruct the expectation values of the conserved charges and the root distributions in the stationary state, which turn out to match the exact thermodynamic results. The proposed method can be implemented even in cases in which an analytic thermodynamic solution is not obtainable.

  20. SUPPLY CHAIN MANAGERS: PROFESSIONAL PROFILE AND THE ROLE IN THE CROSS-FUNCTIONAL INTEGRATION OF SUPPLY CHAIN MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Andréia de Abreu

    2015-03-01

    Full Text Available Supply Chain Management can be seen as a way to achieve integration of all corporate functions. In practice, Supply Chain Management is complex and characterized by numerous activities spread over multiple functions and organizations, which pose challenges to reach effective implementation. Based on literature review, the objective of this paper is to present the theoretical indications regarding professional profile recommended for the Supply Chain Management and discuss the role of these professionals in cross-functional business processes. The literature review demonstrated a growing interest in the thematic, especially because the “soft” aspects (human and behavioral to achieve supply chain internal and external integration. All functions must be involved in Supply Chain Management and supply chain managers have a critical role to play: challenge the supremacy of functions in the organizational structure, implementing the practice of "horizontal work" through cross-functional teams. Overall, this research contributes to academic and practical professionals by the description of the job profile of the supply chain managers and presentation of forms to achieve internal integration.

  1. How to fold a spin chain: Integrable boundaries of the Heisenberg XXX and Inozemtsev hyperbolic models

    CERN Document Server

    Gomez, Alejandro De La Rosa; Regelskis, Vidas

    2016-01-01

    We present a general method of folding an integrable spin chain, defined on a line, to obtain an integrable open spin chain, defined on a half-line. We illustrate our method through two fundamental models with sl(2) Lie algebra symmetry: the Heisenberg XXX and the Inozemtsev hyperbolic spin chains. We obtain new long-range boundary Hamiltonians and demonstrate that they exhibit Yangian symmetries, thus ensuring integrability of the models we obtain. The method presented provides a "bottom-up" approach for constructing integrable boundaries and can be applied to any spin chain model.

  2. OTEC platform configuration and integration study. Volume I. Systems engineering and integration. Final report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1978-04-01

    The economic success of an Ocean Thermal Energy Conversion (OTEC) system is highly dependent on a platform which provides adequate support for the power system, accommodates reliably the cold water pipe, and is most cost effective. The results of a study conducted for the Department of Energy to assess six generic types of platforms to determine the most satisfactory platform for severl potential sites are presented. The six platform configurations are ship, circular barge, semi-submersible, Tuned Sphere, submersible, and spar. These represent directional and symmetric types of platforms which operate on the surface, at the interface, and submerged. The five sites for this study were primarily New Orleans, Keahole Point (Hawaii), Brazil, and secondarily Key West and Puerto Rico. Electrical transmission of energy by submarine cable is the planned form of energy transmission for all sites except Brazil, where chemical conversion is to be the method of transmission. This study is devoted to the platform (or ocean systems) of the OTEC plant which is chiefly comprised of the hull and structure, the seawater system, the position control system, and miscellaneous support/assembly systems. The principal elements in the work breakdown structure for the commercial plants are presented. The assessment of the six platform configurations was conducted utilizing a baseline plan (100-MW(e) (Net)) and site (New Orleans) with variations from the baseline to cover the range of interested platforms and sites.

  3. Stakeholders Integration in Higher Education: Supply Chain Approach

    Science.gov (United States)

    Al-Turki, U. M.; Duffuaa, S.; Ayar, T.; Demirel, O.

    2008-01-01

    Supply chain management principles have emerged in the last decade as a strategic option to meet new challenges in global business environment. Viewing business environment as part of a chain, starting from raw material suppliers to end customers passing by producers, is at the heart of supply-chain management. Many management principles have…

  4. Software Configuration Management Plan for the K West Basin Integrated Water Treatment System (IWTS) Project A.9

    Energy Technology Data Exchange (ETDEWEB)

    GREEN, J.W.

    2000-05-01

    This document provides a configuration control plan for the software associated with the operation and control of the Integrated Water Treatment System (IWTS). It establishes requirements for ensuring configuration item identification, configuration control, configuration status accounting, defect reporting and resolution of computer software. It is written to comply with HNF-SD-SNF-CM-001, Spent Nuclear Fuel Configuration Management Plan (Forehand 1998) and HNF-PRO-309 Computer Software Quality Assurance Requirements, and applicable sections of administrative procedure CM-6-037-00, SNF Project Process Automation Software and Equipment.

  5. The Effect of Information Security Management on Organizational Processes Integration in Supply Chain

    Directory of Open Access Journals (Sweden)

    Mohsen Shafiei Nikabadi

    2012-03-01

    Full Text Available : The major purpose of this article was that how information security management has effect on supply chain integration and the effect of implementing "information security management system" on enhancing supplies chain integration. In this respect, current research was seeking a combination overview to these tow approaches (Information Security Management and Organizational Processes Integration by Enterprise Resources Planning System and after that determined factors of these two important issue by factor analysis. Researchers using a series of comments in the automotive experts (production planning and management and supply chain experts and caregivers car makers and suppliers in the first level and second level supply chain industry. In this way, it has been done that impact on how information security management processes enterprise supply chain integration with the help of statistical correlation analysis. The results of this investigation indicated effect of "information security management system" various dimensions that were coordination of information, prevent human errors and hardware, the accuracy of information and education for users on two dimensions of internal and external integration of business processes, supply chain and finally, it can increased integration of business processes in supply chain. At the end owing to quite these results, deployment of "information security management system" increased the integration of organizational processes in supply chain. It could be demonstrate with the consideration of relation of organizational integration processes whit the level of coordination of information, prevent errors and accuracy of information throughout the supply chain.

  6. Integrating Poverty and Environmental Concerns into Value-Chain Analysis: A Conceptual Framework

    DEFF Research Database (Denmark)

    Bolwig, Simon; Ponte, Stefano; du Toit, Andries;

    2010-01-01

    the impact on poverty, gender and the environment, or conversely, how value chain restructuring is in turn mediated by local history, social relations and environmental factors. This article develops a conceptual framework that can help overcome the shortcomings in 'standalone' value-chain, livelihood...... and environmental analyses by integrating the 'vertical' and 'horizontal' aspects of value chains that together affect poverty and sustainability....

  7. Analysis of Radiant Cooling System Configurations Integrated with Cooling Tower for Different Indian Climatic Zones

    Energy Technology Data Exchange (ETDEWEB)

    Mathur, Jyotirmay [Malaviya National Institute of Technology (MNIT), Jaipur, India; Bhandari, Mahabir S [ORNL; Jain, Robin [Malaviya National Institute of Technology (MNIT), Jaipur, India; Srivastava, Prateek [Malaviya National Institute of Technology (MNIT), Jaipur, India

    2016-01-01

    Radiant cooling system has proven to be a low energy consumption system for building cooling needs. This study describes the use of cooling tower in radiant cooling system to improve the overall system efficiency. A comprehensive simulation feasibility study of the application of cooling tower in radiant cooling system was performed for the fifteen cities in different climatic zones of India. It was found that in summer, the wet bulb temperature (WBT) of the different climatic zones except warm-humid is suitable for the integration of cooling tower with radiant cooling system. In these climates, cooling tower can provide on average 24 C to 27 C water In order to achieve the energy saving potential, three different configurations of radiant cooling system have been compared in terms of energy consumption. The different configurations of the radiant cooling system integrated with cooling tower are: (1) provide chilled water to the floor, wall and ceiling mounted tubular installation. (2) provide chilled water to the wall and ceiling mounted tabular installation. In this arrangement a separate chiller has also been used to provide chilled water at 16 C to the floor mounted tubular installation. (3) provide chilled water to the wall mounted tabular installation and a separate chiller is used to provide chilled water at 16 C to the floor and ceiling mounted tabular installation. A dedicated outdoor air system is also coupled for dehumidification and ventilation in all three configurations. A conventional all-air system was simulated as a baseline to compare these configurations for assessing the energy saving potential.

  8. J-Integral for a 3-D Interface Crack Configuration in Welds of Dissimilar Steels

    Science.gov (United States)

    Chang, Kyong-Ho; Lee, Chin-Hyung

    In this study, path-independent values of the J-integral in the finite element context for an arbitrary three-dimensional interface crack configuration in welds of dissimilar steels are presented. For the fracture mechanics analysis of an interface crack in welds of dissimilar steels, residual stress analysis and fracture analysis must be performed sequentially. In the analysis of cracked bodies containing residual stress, the usual domain integral formation results in path-dependent values of the J-integral. And unlike cracks in homogeneous materials, an interface crack in welds of dissimilar steels always induces both opening and shearing modes of stress in the vicinity of the crack tip. Therefore, this paper discusses modifications of the conventional J-integral that yield path independence in the presence of residual stress and the total J values which can characterize the severity of an interface crack tip in welds of dissimilar steels. A finite element method which can evaluate the J-integral for an interface crack in three-dimensional residual stress bearing bodies is developed using the modified J-integral definition and total J values. The situation when residual stresses only are present is studied as is the case when mechanical stresses are applied in conjunction with a residual stress field.

  9. AN EXPLORATORY APPROACH TO INTEGRATION OF BUSINESS PRACTICES IN SUPPLY CHAIN MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Constangioara Alexandru

    2014-07-01

    After reviewing the literature on supply chain integration, present paper proposes an exploratory analysis of the measurement model corresponding to logistics integration. A Romanian dataset of 21 firms from various industries, covering all levels of a supply chain, from production to commerce is used to conduct a principal factor analysis to test for (a content validity, (b substantive validity, (c uni-dimensionality and (d reliability of scales used to measure integration in supply chains. Also the principal component analysis is used to forecast both dependent and independent variables subsequently used in an OLS estimation of the relationship between supply chain integration and performances in Romanian supply chains. Results support the conclusion that Romanian supply chains focus on a strategy of operational excellence.

  10. Integrating plastic recycling industries into the automotive supply chain

    OpenAIRE

    MAUDET-CHARBUILLET, Carole; Bertoluci, Gwenola; FROELICH, Daniel

    2012-01-01

    Chains for recycling the plastics used in the automotive industry are complex systems just emerging. In this paper we propose to explain the reasons which have so far prevented these recycling chains from achieving a sufficiently regulated state to make them reliable partners for automotive manufacturers. On the basis of this, and taking recycling polypropylene as an example, we propose to use a dynamic flow model of this chain to identify the critical parameters on which achieving this regul...

  11. Experiment/facility requirements document for the Space Station Furnace Facility. Section 1: Integrated configuration

    Science.gov (United States)

    1992-01-01

    The function of the Space Station Furnace Facility (SSFF) is to support materials research into the crystal growth and solidification processes of electronic and photonic materials, metals and alloys, and glasses and ceramics. To support this broad base of research requirements, the SSFF will employ a variety of furnace modules which will be operated, regulated, and supported by a core of common subsystems. Furnace modules may be reconfigured or specifically developed to provide unique solidification conditions for each set of experiments. The SSFF modular approach permits the addition of new or scaled-up furnace modules to support the evolution of the facility as new science requirements are identified. The SSFF Core is of modular design to permit augmentation for enhanced capabilities. The fully integrated configuration of the SSFF will consist of three racks with the capability of supporting up to two furnace modules per rack. The initial configuration of the SSFF will consist of two of the three racks and one furnace module. This Experiment/Facility Requirements Document (E/FRD) describes the integrated facility requirements for the Space Station Freedom (SSF) Integrated Configuration-1 (IC1) mission. The IC1 SSFF will consist of two racks: the Core Rack, with the centralized subsystem equipment; and the Experiment Rack-1, with Furnace Module-1 and the distributed subsystem equipment to support the furnace. The SSFF support functions are provided by the following Core subsystems: power conditioning and distribution subsystem (SSFF PCDS); data management subsystem (SSFF DMS); thermal control Subsystem (SSFF TCS); gas distribution subsystem (SSFF GDS); and mechanical structures subsystem (SSFF MSS).

  12. The application of design criteria for locating a hub configured supply chain for a restaurant cluster in the Stellenbosch area

    Directory of Open Access Journals (Sweden)

    Claudia B. Struwig

    2013-05-01

    Full Text Available Restaurants, in general, utilise numerous suppliers. Normally they deliver on different days in the week and at different times during the day, logistically not an optimum approach. Not only does the current practice cause frequent interruptions, but by segregating the food supply chain unnecessary traffic is generated. This article investigated the need for developing a third party supplier hub, the best positioning of that hub and the most economical routes to the customers. With the aim of providing non-franchised restaurants with the necessary leverage to become market leaders, the hub is planned to only service the restaurants within the vicinity of the Stellenbosch area. In such a hub-configured supply chain, the suppliers would be delivering to the proposed hub, from where once-off deliveries to all the restaurants may be made on days and/or times determined by them. In order to investigate the benefits of providing such a hub structure, a systematic implementation approach was used. The first step was to do market research in order to establish the need for such a hub. That is, the viability of the hub from a restaurant’s perspective was established. The next step entailed the investigation of the design criteria needed in determining a favourable hub location. Four possible hub locations were identified. The Clark and Wright’s savings algorithm was then used to determine the optimal hub location and the feasibility of the results was verified with the aid of a global positioning system (GPS device. The last steps followed involved the determination of an effective hub floor plan that may be utilised, possible products that can be supplied to the restaurants and the necessary assets needed to provide the hub’s service. Finally, by incorporating all these facets, a cost analysis was done to determine the hub’s profitability.

  13. Supply chain integration and performance : the moderating effect of supply complexity

    NARCIS (Netherlands)

    Giménez, C.; van der Vaart, T.; van Donk, D.P.

    2012-01-01

    Purpose - The purpose of this paper is to investigate the effectiveness of supply chain integration in different contexts. More specifically, it aims to show that supply chain integration is only effective in buyer-supplier relationships characterised by high supply complexity. Design/methodology/ap

  14. Space station integrated propulsion and fluid system study: Fluid systems configuration databook

    Science.gov (United States)

    Rose, L.; Bicknell, B.; Bergman, D.; Wilson, S.

    1987-01-01

    This databook contains fluid system requirements and system descriptions for Space Station program elements including the United States and International modules, integrated fluid systems, attached payloads, fluid servicers and vehicle accommodation facilities. Separate sections are devoted to each of the program elements and include a discussion of the overall system requirements, specific fluid systems requirements and systems descriptions. The systems descriptions contain configurations, fluid inventory data and component lists. In addition, a list of information sources is referenced at the end of each section.

  15. Applying Fuzzy Multiobjective Integrated Logistics Model to Green Supply Chain Problems

    OpenAIRE

    Chui-Yu Chiu; Yi Lin; Ming-Feng Yang

    2014-01-01

    The aim of this paper is attempting to explore the optimal way of supply chain management within the domain of environmental responsibility and concerns. The background of this research involves the issue of green supply chain management (GSCM) and the concept of the multiobjective integrated logistics model. More specifically, in this paper, we suggest the fuzzy multiobjective integrated logistics model with the transportation cost and demand fuzziness to solve green supply chain problems in...

  16. Supply Chain Integration, Competition Capability and Business Performance: A Study on Turkish SMEs

    Directory of Open Access Journals (Sweden)

    A.I. Özdemir

    2011-11-01

    Full Text Available In this study, the effect of supply chain integration on the SME’s (Small and Medium Sized Enterprises competition capability and performance is attempted to be investigated. The data is gathered from the conducted surveys with 181 SMEs. Regression models have been built between supply chain integration and competition capability and by building hierarchical regression models between competition ability, supply chain integration and performance, the effects are attempted to be determined. As a result, it is found that supply chain integration affects competition capability positively and competition capability partially affects performance positively. It is also found that supply chain integration has very little effect on business performance; affects only market performance positively.

  17. 基于构件配置的SCM研究%Investigation on Supply Chain Management Based on Component Configuration

    Institute of Scientific and Technical Information of China (English)

    张洁; 陈淮莉; 马登哲

    2004-01-01

    From supply-push mode to demand-pull mode, SCM systems will face four main points: (1) real time visibility that covers the whole supply chain, (2) agility for choice of supply and source, (3) response to diverse customer demands and short delivery deadlines, and (4) rapid occurrence of new products following the market trends and new designs. Component-based SCM has become a hot spot in research areas. A multi-layer framework is set up, including a database server layer, an application server layer, a kernel component layer and a user interface layer. Some function components are designed, which are optimal planning arithmetic components, controller components and evaluation indexes components, in order to suit both discrete and continuous manufacturing. This paper studies a three-dimensional SCM configuration method based on the types of enterprise, manufacturing and products, provides powerful tools for SCM system implementations, and adopts an object-oriented technology to construct component-based distributed information system to assure right time, right materials, right place, right quantity and right customers.

  18. Nash Game Model for Optimizing Market Strategies, Configuration of Platform Products in a Vendor Managed Inventory (VMI) Supply Chain for a Product Family

    NARCIS (Netherlands)

    Y. Yu (Yugang); G.Q. Huang (George)

    2009-01-01

    textabstractThis paper discusses how a manufacturer and its retailers interact with each other to optimize their product marketing strategies, platform product configuration and inventory policies in a VMI (Vendor Managed Inventory) supply chain. The manufacturer procures raw materials from multiple

  19. Plasmonic Structure Integrated Single-Photon Detector Configurations to Improve Absorptance and Polarization Contrast

    Directory of Open Access Journals (Sweden)

    Mária Csete

    2015-02-01

    Full Text Available Configurations capable of maximizing both the absorption component of system detection efficiency and the achievable polarization contrast were determined for 1550 nm polarized light illumination of different plasmonic structure integrated superconducting nanowire single-photon detectors (SNSPDs consisting of p = 264 nm and P = 792 nm periodic niobium nitride (NbN patterns on silica substrate. Global effective NbN absorptance maxima appear in case of p/s-polarized light illumination in S/P-orientation (γ = 90°/0° azimuthal angle and the highest polarization contrast is attained in S-orientation of all devices. Common nanophotonical origin of absorptance enhancement is collective resonance on nanocavity gratings with different profiles, which is promoted by coupling between localized modes in quarter-wavelength metal-insulator-metal nanocavities and laterally synchronized Brewster-Zenneck-type surface waves in integrated SNSPDs possessing a three-quarter-wavelength-scaled periodicity. The spectral sensitivity and dispersion characteristics reveal that device design specific optimal configurations exist.

  20. A conceptual model for factors affecting the relationship between supply chain integration and customer delivery performance

    Directory of Open Access Journals (Sweden)

    Peyman Ghafari Ashtiani

    2013-09-01

    Full Text Available Supply chain is a widely used concept around the world. Nowadays, companies need to integrate their production processes, from the raw materials to the end-user. Supply chain management is a phenomenon that achieves this in a way that ensures customers get reliable and fast service and high quality products at the lowest possible cost. There is very limited and sporadic research on supply chain integration and how it affects supply chain performance. Therefore there is no real understanding of the concept of supply chain integration and how it affects supply chain performance nor is there a holistic model. This paper thus aims to present a model that identifies factors affecting the relationship between supply chain integration and customer delivery performance. After analyzing the collected data on supply chain integration and customer delivery performance, the preliminary model was proposed and completed, and using expert opinion in the Imam Khomeini Oil Refinery the final model and for factors affecting the relationship between supply chain integration and customer delivery performance were presented. To determine how these factors interrelate with each other, the DEMATEL method was then used. The statistical population included the staff at Imam Khomeini Oil Refinery in Shazand. The data, collected through the standard DEMATEL questionnaire, were analyzed using the DEMATEL method and a MATLAB program. The DEMATEL results indicate that intra-organizational factors, institutional norms, technological certainties are causal factors which influence other factors that affect the relationship between supply chain integration and customer delivery performance. Intra-organizational factor have a greater influence also among effect factors, substructures have the greatest influence.

  1. Supply Chain Control: A Theory of Vertical Integration

    OpenAIRE

    Ursino, Giovanni

    2009-01-01

    Improving a company's bargaining position is often cited as a chief motivation to vertically integrate with suppliers. This paper expands on that view in building a new theory of vertical integration. In my model firms integrate to gain bargaining power against other suppliers in the production process. The cost of integration is a loss of flexibility in choosing the most suitable suppliers for a particular final product. I show that the firms who make the most specific investments in the pro...

  2. LINKED DATA PARADIGM FOR ENTERPRISES: INFORMATION INTEGRATION AND VALUE CHAIN

    OpenAIRE

    Hladky, D.; Maltseva, S.

    2013-01-01

    Data integration in enterprises is a crucial but at the same time costly and challenging problem. While business-critical information is stored in ERP, CRM, SCM and in Content Management systems the integration of such becomes even more critical when integrating with the growing information space on the Web. The IT industry has developed over the last decade integration solutions based on Master Data Management, Business Intelligence and the Service Oriented Architecture. However, we become i...

  3. Steps for the Solution of Faddeev Integral Equations in Configuration Space

    Directory of Open Access Journals (Sweden)

    Glöckle W.

    2010-04-01

    Full Text Available Faddeev equations in configuration space for three-atom scattering processes that have previously b een formulated in integral form allowing for additive and nonadditive forces, are now examined in terms of their numerical prop erties for a “toy-model” case. The numerical implementation is based on a sp ectral decomp osition in terms of Chebyshev p olynomials. The potential for high accuracy of this method, of the order of 6 to 8 significant figures is one of the main motivations for the present investigation.The ob ject of the equations are T-functions, that are the product of wave functions times potentials, that decay to zero in all directions. The driving and coupling terms are based on the two-body t-matrices, which describe the two-body correlations in each arrangement. The preferred form for b oth the driving term and the integral kernel terms is of a hybrid nature, the x-dependence is expanded into Chebyshev p olynomials, and the y-dependence is given in terms of a Fourier series. The numerical prop erties of the driving term are examined in detail, and the integral kernel is left for a subsequent analysis.

  4. Integrable inhomogeneous spin chains in generalized Lunin-Maldacena backgrounds

    International Nuclear Information System (INIS)

    We obtain through a Matrix Product Ansatz the exact solution of the most general inhomogeneous spin chain with nearest neighbor interaction and with U(1)2 and U(1)3 symmetries. These models are related to the one loop mixing matrix of the Leigh-Strassler deformed N = 4 SYM theory, dual to type IIB string theory in the generalized Lunin-Maldacena backgrounds, in the sectors of two and three kinds of fields, respectively. The solutions presented here generalizes the results obtained by the author in a previous work for homogeneous spins chains with U(1)N symmetries in the sectors of N = 2 and N = 3. (author)

  5. Integrating a web-based system with business processes in closed loop supply chains

    NARCIS (Netherlands)

    A.I. Kokkinaki; R. Dekker (Rommert); R. Lee; C.P. Pappis (Costas)

    2001-01-01

    textabstractClosed Loop Supply Chains include operations for physical collection of end-of-use products, selection based on their configuration and/or condition and decision making for reuse, remanufacturing or recycling. Uncertainty factors regarding the time, place of origin, and status of retu

  6. Industry and chain responsibilities and integrative social contract theory

    NARCIS (Netherlands)

    Wempe, J.F.D.B. (Johan)

    2010-01-01

    This article shows that business ethics is not capable of explaining the responsibility of limited organized collectives such as chains, sectors and industries. The responsibility of the pharmaceutical industry to make AIDSblockers available for patients in Africa is an example of such a sector resp

  7. Food safety objective: an integral part of food chain management

    NARCIS (Netherlands)

    Gorris, L.G.M.

    2005-01-01

    The concept of food safety objective has been proposed to provide a target for operational food safety management, leaving flexibility in the way equivalent food safety levels are achieved by different food chains. The concept helps to better relate operational food safety management to public healt

  8. A knowledge management methodology for the integrated assessment of WWTP configurations during conceptual design.

    Science.gov (United States)

    Garrido-Baserba, M; Reif, R; Rodriguez-Roda, I; Poch, M

    2012-01-01

    The current complexity involved in wastewater management projects is arising as the XXI century sets new challenges leading towards a more integrated plant design. In this context, the growing number of innovative technologies, stricter legislation and the development of new methodological approaches make it difficult to design appropriate flow schemes for new wastewater projects. Thus, new tools are needed for the wastewater treatment plant (WWTP) conceptual design using integrated assessment methods in order to include different types of objectives at the same time i.e. environmental, economical, technical, and legal. Previous experiences used the decision support system (DSS) methodology to handle the specific issues related to wastewater management, for example, the design of treatment facilities for small communities. However, tools developed for addressing the whole treatment process independently of the plant size, capable of integrating knowledge from many different areas, including both conventional and innovative technologies are not available. Therefore, the aim of this paper is to present and describe an innovative knowledge-based methodology that handles the conceptual design of WWTP process flow-diagrams (PFDs), satisfying a vast number of different criteria. This global approach is based on a hierarchy of decisions that uses the information contained in knowledge bases (KBs) with the aim of automating the generation of suitable WWTP configurations for a specific scenario. Expert interviews, legislation, specialized literature and engineering experience have been integrated within the different KBs, which indeed constitute one of the main highlights of this work. Therefore, the methodology is presented as a valuable tool which provides customized PFD for each specific case, taking into account process unit interactions and the user specified requirements and objectives.

  9. A knowledge management methodology for the integrated assessment of WWTP configurations during conceptual design.

    Science.gov (United States)

    Garrido-Baserba, M; Reif, R; Rodriguez-Roda, I; Poch, M

    2012-01-01

    The current complexity involved in wastewater management projects is arising as the XXI century sets new challenges leading towards a more integrated plant design. In this context, the growing number of innovative technologies, stricter legislation and the development of new methodological approaches make it difficult to design appropriate flow schemes for new wastewater projects. Thus, new tools are needed for the wastewater treatment plant (WWTP) conceptual design using integrated assessment methods in order to include different types of objectives at the same time i.e. environmental, economical, technical, and legal. Previous experiences used the decision support system (DSS) methodology to handle the specific issues related to wastewater management, for example, the design of treatment facilities for small communities. However, tools developed for addressing the whole treatment process independently of the plant size, capable of integrating knowledge from many different areas, including both conventional and innovative technologies are not available. Therefore, the aim of this paper is to present and describe an innovative knowledge-based methodology that handles the conceptual design of WWTP process flow-diagrams (PFDs), satisfying a vast number of different criteria. This global approach is based on a hierarchy of decisions that uses the information contained in knowledge bases (KBs) with the aim of automating the generation of suitable WWTP configurations for a specific scenario. Expert interviews, legislation, specialized literature and engineering experience have been integrated within the different KBs, which indeed constitute one of the main highlights of this work. Therefore, the methodology is presented as a valuable tool which provides customized PFD for each specific case, taking into account process unit interactions and the user specified requirements and objectives. PMID:22678214

  10. BiodieselFAO: An Integrated Decision Support System for Investment Analysis in the Biodiesel Production Chain

    Directory of Open Access Journals (Sweden)

    Aziz Galvão da Silva Júnior

    2015-06-01

    Full Text Available In the short and medium terms, biofuels are the most viable alternative to reduce the environmental impact of fossil fuels. The recent controversy over the competition between biofuels and food production increases the complexity of investment decisions in the biodiesel production chain. In this context, decision support tools are highly relevant. The purpose of this article is to describe the BiodieselFAO using the Unified Modeling Language (UML. An integrated analysis considering both agricultural and industrial sectors was identified as a key requirement to the system. Therefore, farmers and industry are the main actors in the use case diagram. As the raw material represents around 70% of the industrial cost of biodiesel production, the price negotiation of raw material (oilseeds is the central use case. Configuration, agriculture, industry, results and scenarios are the modules, which encompass the functionalities derived from the UML diagrams. The Food and Agriculture Organization of the United Nations (FAO has made the BiodieselFAO available, free of charge, to around 180 professionals from 17 Latin American countries. Additionally, the developing team has supported the usage of the BiodieselFAO in several biodiesel investment analyses throughout Latin America. The system was also useful in the design and analysis of policy related to biodiesel industry in Brazil.

  11. A Review on the Integration of Supply Chain Management and Industrial Cluster

    OpenAIRE

    Mangano, Giulio; Marco, Alberto

    2013-01-01

    Although Supply Chain Management (SCM) and Industrial Cluster (IC) are two different fields of study, it has been identified that there is a natural and internal relationship between these two theories. Most of research works depict that, integration of the two concepts is in its infancy. The aim of this research is to review the integration between supply chain management and industrial cluster, at the same time to identify the gap and propose solution. To achieve the research aim, two pairs...

  12. Design of an Integrated Methodology for Analytical Design of Complex Supply Chains

    OpenAIRE

    Shahid Rashid; Richard Weston

    2012-01-01

    A literature review and gap analysis indentifies key limitations of industry best practice when modelling of supply chains. To address these limitations the paper reports on the conception and development of an integrated modelling methodology designed to underpin the analytical design of complex supply chains. The methodology is based upon a systematic deployment of EM, CLD, and SM techniques; the integration of which is achieved via common modelling concepts and decomposition principles. Th...

  13. On the use of process integration techniques to generate optimal steam cycle configurations for the power plant industry

    OpenAIRE

    Girardin, Luc; Bolliger, Raffaele; Marechal, Francois

    2009-01-01

    The integration of steam cycles in the power plant industry aims at optimizing the conversion of the available heat into mechanical power. The proposed method uses process integration techniques and a multi-objective optimisation procedure to generate optimal steam cycle configurations which can be ordered by complexity-costs and efficiency. The interest of this methods is to allow the integration of complex heat exchanger network layout, providing systematically alternative arrangements usin...

  14. Co-specific investment and integration in the agrifood chain

    OpenAIRE

    Feng, Li; Karantininis, Kostas

    2014-01-01

    We develop a holdup model where multiple parties in the food chain (input suppliers, farmers, and buyers of the produce) invest in co-specific assets necessary for an innovative product. Shapley value is used in a multilateral bargaining game to assign bargaining power to the players, which correspondingly determines the surplus division.The conditions under which holdup is avoided and Pareto improving exchange will obtain are demonstrated. Two market responses to the holdup problem are consi...

  15. Web-Based Supply Chain Simulation: an Integrated Approach

    OpenAIRE

    Arisha, Amr; Tobail, Ayman; Crowe,John

    2010-01-01

    This is an era marked by rapid technology development in all different educational arenas. Alongside this growing demand of technology, learning process is getting new forms and hence traditional teaching approaches tend to struggle and lack the requisite qualities to meet new generation expectations. In third level education, this problem is increasing in magnitude and new dimensions, especially when it comes to teaching difficult subjects such as supply chain management. Understanding the c...

  16. Integration of logistics network in local food supply chains

    OpenAIRE

    Bosona, Techane

    2013-01-01

    The demand for locally produced food is increasing as global food supply system has considerably affected the confidence of consumers by increasing tonne-kilometres, food safety risk, environmental impact, and disconnecting local food producers and consumers. However, local food suppliers are not in the position to compete with large scale food supply systems due to high logistics costs. The overall objective of this study was to improve the logistics management of local food supply chains. I...

  17. Separation of Variables in the Classical Integrable SL(3) Magnetic Chain

    OpenAIRE

    Sklyanin, E. K.

    1992-01-01

    There are two fundamental problems studied by the theory of hamiltonian integrable systems: integration of equations of motion, and construction of action-angle variables. The third problem, however, should be added to the list: separation of variables. Though much simpler than two others, it has important relations to the quantum integrability. Separation of variables is constructed for the $SL(3)$ magnetic chain --- an example of integrable model associated to a nonhyperelliptic algebraic c...

  18. Applying Fuzzy Multiobjective Integrated Logistics Model to Green Supply Chain Problems

    Directory of Open Access Journals (Sweden)

    Chui-Yu Chiu

    2014-01-01

    Full Text Available The aim of this paper is attempting to explore the optimal way of supply chain management within the domain of environmental responsibility and concerns. The background of this research involves the issue of green supply chain management (GSCM and the concept of the multiobjective integrated logistics model. More specifically, in this paper, we suggest the fuzzy multiobjective integrated logistics model with the transportation cost and demand fuzziness to solve green supply chain problems in the uncertain environment which is illustrated via the detailed numerical example. Results and the sensitivity analysis of the numerical example indicate that when the governmental subsidy value increased the profits of the reverse chain also increased. The finding shows that the governmental subsidy policy could remain of significant influence for used-product reverse logistics chain.

  19. Integrable Inhomogeneous Spin Chains in Generalized Lunin-Maldacena Backgrounds

    OpenAIRE

    Lazo, Matheus Jatkoske

    2008-01-01

    We obtain through a Matrix Product Ansatz the exact solution of the most general inhomogeneous spin chain with nearest neighbor interaction and with $U(1)^2$ and $U(1)^3$ symmetries. These models are related to the one loop mixing matrix of the Leigh-Strassler deformed N=4 SYM theory, dual to type IIB string theory in the generalized Lunin-Maldacena backgrounds, in the sectors of two and three kinds of fields, respectively. The solutions presented here generalizes the results obtained by the ...

  20. Optimizing the configuration of a clearwell by integrating pilot and full-scale tracer testing

    Institute of Scientific and Technical Information of China (English)

    LIU Wenjun; DU Zhipeng; JIN Junwei

    2007-01-01

    In this paper,the main factors impacting the plug flow pattern of a clearwell were investigated by integrating pilot-scale,full-scale clearwell tracer testing and computational fluid dynamics (CFD) simulation.It was found that pilot tracer testing,full-scale tracer testing and CFD simulation all demonstrated that the correlation between the ratio of t10/T and L/W can be approximately expressed by:t10/T= 0.189 41n(L/W)-0.049 4.This study confirmed that the installation of baffles within clearwells is an efficient way to optimize their configuration.In addition,the inlet velocity has a minimal contribution to the ratio of t10/T.However,the ratio of turning channel width to charmel width (d/W)significantly contributes to the ratio of t10/T.The optimal ratio of d/W is 0.8-1.2 for maintaining better plug flow pattern.The number of turning channels is one of the main factors that impact the ratio of t10/T.When increasing the number of turning channels,a lower ratio of t10/T is obtained.

  1. B2B Integration in Global Supply Chains

    DEFF Research Database (Denmark)

    Schubert, Petra; Legner, Christine

    2011-01-01

    The competitiveness of businesses is increasingly dependent on their electronic networks with customers, suppliers, and partners. While the strategic and operational impact of external integration and IOS adoption has been extensively studied, much less attention has been paid to the organizational...

  2. Modelling and simulation of the integration of the supply chain of forward and backward type

    Directory of Open Access Journals (Sweden)

    Roman Domański

    2015-03-01

    Full Text Available Background: The integration, besides synergy and convergence, is regarded as a leading orientation in modern logistics. The connection of various participants within supply chains enables the integration of actions and allows to fulfill growing customers' demands in an effective and economically efficient way.  In times of a concept of the balanced development, growing interest in utilization of recycled material, connected with possibilities to consolidate  logistic activities, can be observed. According to the scientific literature (integration models as well as practical business cases, supply chains of forward and backward type (two-directional are the area of logistics of the intensive development.    Material and methods: The paper presents the Authors' model and methodology of modeling of the integration of supply chains, which realizes the flows of forward and backward type (two-directions. The empirical material was obtained during modeling and simulation of processes in the environment of iGrafx Process 2013 for Six Sigma with the support of Minitab 17 (for planning of experiments.  The method of the verification of statistical hypotheses was used. As a first step, the correlation between the level of the integration and the global service level for the supply chain was conducted using the method of Pearson's coefficient. The test of relevance of correlation coefficient was conducted by the use of t-distribution method. Then the verification of statistical hypotheses was made, based on the method using the Z-statistics. Results: The obtained results indicate clearly the strong relationship between the level of the integration of a supply chain and the obtained service level (values of Pearson's correlation coefficient and results of t-test. The detailed statistical researches of authors indicate that the increased level of the integration leads to the increase of the average value of service level coefficient (results of Z

  3. Proposition of a modeling and an analysis methodology of integrated reverse logistics chain in the direct chain

    Directory of Open Access Journals (Sweden)

    Faycal Mimouni

    2016-04-01

    Full Text Available Purpose: Propose a modeling and analysis methodology based on the combination of Bayesian networks and Petri networks of the reverse logistics integrated the direct supply chain. Design/methodology/approach: Network modeling by combining Petri and Bayesian network. Findings: Modeling with Bayesian network complimented with Petri network to break the cycle problem in the Bayesian network. Research limitations/implications: Demands are independent from returns. Practical implications: Model can only be used on nonperishable products. Social implications: Legislation aspects: Recycling laws; Protection of environment; Client satisfaction via after sale service. Originality/value: Bayesian network with a cycle combined with the Petri Network.

  4. An integrated multi-stage supply chain inventory model with imperfect production process

    OpenAIRE

    Soumita Kundu; Tripti Chakrabarti

    2015-01-01

    This paper deals with an integrated multi-stage supply chain inventory model with the objective of cost minimization by synchronizing the replenishment decisions for procurement, production and delivery activities. The supply chain structure examined here consists of a single manufacturer with multi-buyer where manufacturer orders a fixed quantity of raw material from outside suppliers, processes the materials and delivers the finished products in unequal shipments to each customer. In this p...

  5. The Progress of Paperless Trade in Asia and the Pacific: Enabling International Supply Chain Integration

    OpenAIRE

    Ha, Sung Heun; Lim, Sang Won

    2014-01-01

    This paper discusses on how to facilitate paperless trade for international supply chain integration in the Asia and Pacific region. The paper defines paperless trade and describes how paperless trade can improve efficiency of international supply chain, including its economic benefits. Based on the review of paperless trade initiatives and assessment of paperless trade readiness of countries in the Asia and Pacific region, the paper identifies five critical challenges in facilitating cross-b...

  6. Methodology for Supply Chain Integration: A Case Study in the Artisan Industry of Footwear

    OpenAIRE

    Jorge Raúl Pérez-Gallardo; Beatriz Hernández-Vera; Constantino Gerardo Moras Sánchez; Alberto Alfonso Aguilar Lasserre; Rubén Posada-Gómez; Ulises Juárez-Martínez; Giner Alor-Hernández

    2014-01-01

    The supply chain is a major issue in a global market. The efficient relationship between supplier-producer-retailer conforms the perfect combination to achieve a high level of competitiveness according to the needs of increasingly demanding and changing markets. The difficulty of synchronizing the members within the SC is related to the inherent uncertain factors. This paper proposes a methodology for integrating the supply chain that can be applied in any type of business. To demonstrate its...

  7. MONOLITHIC VERSUS HIERARCHICAL APPROACH TO INTEGRATED SCHEDULING IN A SUPPLY CHAIN

    OpenAIRE

    Sawik, Tadeusz J.

    2009-01-01

    Abstract The two approaches, monolithic and hierarchical, with a set of mixed integer programming formulations are proposed and compared for multi-objective integrated scheduling in a customer driven supply chain. The supply chain consists of multiple manufacturers (suppliers) of parts, a single producer of finished products and a set of customers which generates final demand for the products. Each supplier has a number of identical production lines in parallel f...

  8. Chain DTC Diabetes: new payment system to stimulate integrated care in the Netherlands

    OpenAIRE

    de Bruijn, Els M.

    2009-01-01

    Purpose To examine if the free negotiable chain diagnosis treatment combination (DTC) will stimulate (cost) effective and well organised diabetes care by integrated care groups. Context The chain DTC diabetes contains the care in accordance with the medical care standard of the Dutch Diabetes Federation. The care group negotiates the price of the DTC with the insurer. This should stimulate the professionals involved to collaborate as efficient as possible and the insurer to negotiate the lowe...

  9. Chaining of web services and its application in geographic information integration and visualization

    Science.gov (United States)

    Chen, Chuanbin; Wu, Qunyong; Chen, Chongcheng; Chen, Han

    2005-11-01

    The rapid development of web services technology ushers Geographical Information Systems (GISs) into the era of geographic information web services (GIWS), which requires a scalable and extensible GISs model to deliver distributed geographic information and GISs functions integrated as independently-provided, interoperable services in a distributed computing environment. Several distributed services can be dynamically chained as a new service to accomplish a specific task. Such a model of service chaining is one of the most important research topics of next generation GISs. The paper highlights the issues of service chaining, the process of combining several distributed, interoperable GIWS dynamically to construct customized applications, and analyses characters of each pattern. Then, based on pattern of client-coordinated chaining, we design a service chaining which is developed in a J2EE development environment using web services technology, and construct a web services-oriented Geo-spatial data integration and visualization platform in order to integrate multi-sources and heterogeneous Geo-spatial data using Geography Markup Language (GML) and Geo-spatial data integration technology, and to visualize geographic information using Scalable Vector Graphics (SVG) and JavaScript technology. During the process of design, several GIWS are defined, and functions, interfaces and related methods of these services are discussed in detail. The paper focuses on the method for chaining distributed GIWS, the mechanism for geographic information dissemination and error handling. Finally, forest Geo-spatial Data which have two typical types of data E00 and Shapefile (SHP) was used to test the platform. The result indicates that using service chaining for multi-sources and heterogeneous Geo-spatial data integration and visualization can efficiently meet customized needs, but further research is needed for better application.

  10. Path-integral theory of an axially confined worm-like chain

    Energy Technology Data Exchange (ETDEWEB)

    Smith, D.A. [Randall Centre for Molecular Mechanisms of Cell Function, King' s College London, London (United Kingdom)

    2001-06-01

    A path-integral formulation is developed for the thermodynamic properties of a worm-like chain moving on a surface and laterally confined by a harmonic potential. The free energy of the chain is calculated as a function of its length and boundary conditions at each end. Distribution functions for chain displacements can be constructed by utilizing the Markov property as a function of displacement {phi}(s) and its derivative d{phi}(s)/ds along the path. These quantities are also calculated in the presence of pinning sites which impose fixed positive or negative displacements, foreshadowing their application to a model for the regulation of striated muscle. (author)

  11. INCREASING INTEGRATION ACROSS THE SUPPLY CHAIN THROUGH AN APPROACH TO MATCH PERFORMANCE AND RISK

    Directory of Open Access Journals (Sweden)

    Maria Elena Nenni

    2013-01-01

    Full Text Available It is well known by researchers and practitioners that shared risks among actors support integration and collaboration across a supply chain. Moreover many authors have linked risk to performance contribution. Nevertheless these ideas remain still theoretical and in literature applications are missing. The aim of this study is to develop a logical framework in which risk, performance and actors are connected each other. The goal is using the framework as a tool to recognize unbalanced supply chains and the best way to improve them. The benefit should be a better integration among supply chain actors. The logical framework has been thought and then applied in the case of an Integrated Logistic Support (ILS service.

  12. Configurational entropy of protein: A combined approach based on molecular simulation and integral-equation theory of liquids

    Science.gov (United States)

    Chong, Song-Ho; Ham, Sihyun

    2011-03-01

    We report the recent development of a theoretical method to calculate the protein configurational entropy in explicit solvent from statistical properties of the solvent-averaged protein potential energy surface. This method can be implemented by combining molecular simulation and integral-equation theory of liquids. Our method does not assume Gaussian distribution of protein configurations, and can be applied to unfolded or misfolded states of protein in which an average protein structure is not well defined. An illustrative application is made to misfolded state of 42-residue amyloid beta protein in water.

  13. Supramolecular clusters and chains of 2,6-dimethylpyridine on Cu(110): Observation of dynamic configuration change with real-space surface science techniques and DFT calculations

    Science.gov (United States)

    Lee, Junseok; Sorescu, Dan C.; Lee, Jae-Gook; Dougherty, Dan

    2016-10-01

    The adsorption of 2,6-dimethylpyridine (2,6-DMP) on Cu(110) has been studied using low temperature scanning tunneling microscopy (LT-STM), time-of-flight electron stimulated desorption ion angular distribution (TOF-ESDIAD), and density functional theory (DFT) calculations. At low temperatures (T surface direction. At near-saturation coverage, a c(6 × 2) long-range ordered structure was observed. Upon annealing to T = 200 K, the 2,6-DMP molecules adopt an upright configuration with their pyridine ring plane oriented parallel to the azimuth. These upright 2,6-DMP molecules produce extended molecular chains where the repulsive interactions between the molecular chains give rise to coverage-dependent interchain distances.

  14. Dynamic simulations of solar combisystems integrating a seasonal sorption storage: Influence of the combisystem configuration

    OpenAIRE

    Hennaut, Samuel; Thomas, Sébastien; Davin, Elisabeth; Skrylnyk, Alexandre; Frère, Marc

    2012-01-01

    This paper focuses on the sizing of solar combisystems with adsorption seasonal storage to target autonomous solar space heating. Two main configurations of the combisystem are simulated, including one or two tanks. The influence of the seasonal storage on the sizing of the tanks is also discussed. Results show that performances of the system with two tanks are better (2 to 4 % with seasonal storage) but some improvements should be possible for the single tank configuration. The sizing of the...

  15. Integrable open spin chain in super Yang-Mills and the plane-wave/SYM duality

    Science.gov (United States)

    Chen, Bin; Wang, Xiao-Jun; Wu, Yong-Shi

    2004-02-01

    We investigate the integrable structures in an Script N = 2 superconformal Sp(N) Yang-Mills theory with matter, which is dual to an open+closed string system. We restrict ourselves to the BMN operators that correspond to free string states. In the closed string sector, an integrable structure is inherited from its parent theory, Script N = 4 SYM. For the open string sector, the planar one-loop mixing matrix for gauge invariant holomorphic scalar operators is identified with the hamiltonian of an integrable SU(3) open spin chain. Using the K-matrix formalism we identify the integrable open-chain boundary conditions that correspond to string boundary conditions. The solutions to the algebraic Bethe ansatz equations (ABAE) with a few impurities are shown to recover the anomalous dimensions that exactly match the spectrum of free open string in the plane-wave background. We also discuss the properties of the solutions of ABAE beyond the BMN regime.

  16. Integrable Open Spin Chain in Super Yang-Mills and the Plane-wave/SYM duality

    CERN Document Server

    Chen, B; Wu, Y S; Chen, Bin; Wang, Xiao-Jun; Wu, Yong-Shi

    2004-01-01

    We investigate the integrable structures in an N=2 superconfomal Sp(N) Yang-Mills theory with matter, which is dual to an open+closed string system. We restrict ourselves to the BMN operators that correspond to free string states. In the closed string sector, an integrable structure is inherited from its parent theory, N=4 SYM. For the open string sector, the planar one-loop mixing matrix for gauge invariant holomorphic operators is identified with the Hamiltonian of an integrable SU(3) open spin chain. Using the K-matrix formalism we identify the integrable open-chain boundary conditions that correspond to string boundary conditions. The solutions to the algebraic Bethe ansatz equations (ABAE) with a few impurities are shown to recover the anomalous dimensions that exactly match the spectrum of free open string in the plane-wave background. We also discuss the properties of the solutions of ABAE beyond the BMN regime.

  17. Lamellar thickness transition of melt-crystallized polybuten-1 tetragonal phase: configurational change in chain folding directions

    Institute of Scientific and Technical Information of China (English)

    Motoi YAMASHITA

    2009-01-01

    Lamellar crystal thickness lc of isotactic polybutene-1 (it-PB 1) have been investigated for crystal-lization in the melt over a wide range of crystallization temperature T from 40℃ to 90℃ by small angle X-ray scattering experiments and density measurements. The crystal thickness lc demonstrates two linear dependences on inverse supercooling and a transition from one dependence to the other has been observed around T =65~C. Each of the two dependences obeys the nucleation theory in the high and low supercooling ranges, respec-tively. Chain folding free energy q determined from the low supercooling range is larger than that determined from the high supercooling range. Possible mechanisms for the transition are discussed taking account of entropy of chain folding directions.

  18. Celebrating Soft Matter's 10th Anniversary: Chain configuration and rate-dependent mechanical properties in transient networks

    OpenAIRE

    Sing, Michelle K.; Wang, Zhen-Gang; McKinley, Gareth H.; Olsen, Bradley D.

    2015-01-01

    Numerical solution of a coupled set of Smoluchowski convection-diffusion equations of associating polymers modelled as finitely extensible dumbbells enables computation of time-dependent end-to-end distributions for bridged, dangling, and looped chains in three dimensions as a function of associating end-group kinetics. Non-monotonic flow curves which can lead to flow instabilities during shear flow result at low equilibrium constant and high association rate from two complementary phenomena:...

  19. Vertical integration within the logistic chain: does "regulation" play rational? The case for dedicated container terminals

    OpenAIRE

    Cariou, Pierre

    2001-01-01

    The liberalisation process of European port markets is similar to the one implemented in most of the networks industries (telecommunication, gas, water, airlines...). It takes place during a period of vertical integration within the logistical chain. The basic idea of this article is to present the main features of those processes and their major implications in one case of vertical integration: dedicated container terminals (DTs). A first section compares port systems and general network ...

  20. Integrated planning in supply chains with buy-side and sell-side marketplaces

    Indian Academy of Sciences (India)

    Roshan Gaonkar; N Viswanadham

    2005-04-01

    In this paper we develop a quadratic programming model for partner selection and planning in integrated supply chain networks embedded with both sell-side and buy-side electronic marketplaces. Such a scenario arises in several practical applications. In particular, we consider a contract manufacturer who procures components from suppliers through a component marketplace and sells its manufactured sub-assemblies to original equipment manufacturers (OEMs), through a sub-assembly marketplace. In these web-enabled supply chains, embedded with upstream and downstream electronic marketplaces, we need methods for online supply-chain partner selection based on pricing and delivery schedules. In this paper, we develop and present such a model that selects partners, synchronizes supply chain activities and optimizes the profit through optimal revenue pricing and cost minimization.

  1. Integrated supply chain design for commodity chemicals production via woody biomass fast pyrolysis and upgrading.

    Science.gov (United States)

    Zhang, Yanan; Hu, Guiping; Brown, Robert C

    2014-04-01

    This study investigates the optimal supply chain design for commodity chemicals (BTX, etc.) production via woody biomass fast pyrolysis and hydroprocessing pathway. The locations and capacities of distributed preprocessing hubs and integrated biorefinery facilities are optimized with a mixed integer linear programming model. In this integrated supply chain system, decisions on the biomass chipping methods (roadside chipping vs. facility chipping) are also explored. The economic objective of the supply chain model is to maximize the profit for a 20-year chemicals production system. In addition to the economic objective, the model also incorporates an environmental objective of minimizing life cycle greenhouse gas emissions, analyzing the trade-off between the economic and environmental considerations. The capital cost, operating cost, and revenues for the biorefinery facilities are based on techno-economic analysis, and the proposed approach is illustrated through a case study of Minnesota, with Minneapolis-St. Paul serving as the chemicals distribution hub.

  2. The moderating effect of product complexity on new product development and supply chain management integration

    NARCIS (Netherlands)

    Caniato, F.; Grössler, A.

    2015-01-01

    The purpose of this study is to investigate whether product complexity moderates the impact of integration programs in both new product development (NPD) and supply chain (SC) management on operational performance. Results are based on statistical analyses of data collected from an international sam

  3. A Technology Selection Framework for Integrating Manufacturing within a Supply Chain

    DEFF Research Database (Denmark)

    Farooq, Sami; O' Brien, Chris

    2012-01-01

    This paper describes a structured analytical approach for selecting a manufacturing technology. A framework consisting of six integrated steps is proposed by considering the growing importance of supply chains in manufacturing organisations. The framework makes use of Analytical Hierarchy (AHP......-organisational perspective in their organisational technology selection decision making process....

  4. On-Chip integration of sample pretreatment and Multiplex polymerase chain reaction (PCR) for DNA analysis

    DEFF Research Database (Denmark)

    Brivio, Monica; Snakenborg, Detlef; Søgaard, E.;

    2008-01-01

    In this paper we present a modular lab-on-a-chip system for integrated sample pre-treatment (PT) by magnetophoresis and DNA amplification by polymerase chain reaction (PCR). It consists of a polymer-based microfluidic chip mounted on a custom-made thermocycler (Figure 1) and includes a simple...

  5. Integrating Closed-loop Supply Chains and Spare Parts Management at IBM

    NARCIS (Netherlands)

    M. Fleischmann (Moritz); J.A.E.E. van Nunen (Jo); B. Graeve

    2002-01-01

    textabstractEver more companies are recognizing the benefits of closed-loop supply chains that integrate product returns into business operations. IBM has been among the pioneers seeking to unlock the value dormant in these resources. We report on a project exploiting product returns as a source of

  6. Value chain envy : Explaining new entry and vertical integration in popular music

    NARCIS (Netherlands)

    Mol, J.M.; Wijnberg, N.M.; Carroll, C.

    2005-01-01

    The concepts of value creation, value capture, and value protection are employed to explain new entry and vertical integration. It is posited that if, at one stage of the value system, the share of value captured is disproportionally higher than the share of value created, value chain envy will ensu

  7. Value Chain Envy: Explaining New Entry and Vertical Integration in Popular Music

    NARCIS (Netherlands)

    J.M. Mol; N.M. Wijnberg; C. Carroll

    2005-01-01

    The concepts of value creation, value capture, and value protection are employed to explain new entry and vertical integration. It is posited that if, at one stage of the value system, the share of value captured is disproportionally higher than the share of value created, value chain envy will ensu

  8. Sink or Swim: Learning by Doing in a Supply Chain Integration Activity*

    Science.gov (United States)

    Harnowo, Akhadian S.; Calhoun, Mikelle A.; Monteiro, Heather

    2016-01-01

    Studies show that supply chain integration (SCI) is important to organizations. This article describes an activity that places students in the middle of an SCI scenario. The highly interactive hands-on simulation requires only 50 to 60 minutes of classroom time, may be used with 18 to about 36 students, and involves minimal instructor preparation.…

  9. Opportunities and realities of supply chain integration : the case of food manufacturers

    NARCIS (Netherlands)

    van Donk, Dirk Pieter; Akkerman, Renzo; van der Vaart, Taco

    2008-01-01

    Purpose - The purpose of the paper is to investigate the limitations and barriers for supply chain integration that food manufacturers experience and to highlight their planning and scheduling problems. Possible ways to cope with these are offered. Design/methodology/approach - The paper is theoreti

  10. Highly configurable low cost remote laboratory with integrated support for learning – Hardware design

    Directory of Open Access Journals (Sweden)

    Dag A. H. Samuelsen

    2013-04-01

    Full Text Available This paper presents a flexible and low cost design specification for a remote laboratory platform for electronics laboratories. The system utilises a motherboard design and this paper presents both the design of the motherboard, various designs for add on cards and shows how to configure the setup. The design is focused on providing the user with a combination of easy setup and a large freedom in reconfiguration all provided as a low cost solution. The solution is designed to facilitate a natural flow in the creation of all forms of remote laboratories, from the prototyping level up to a permanent installation. This motherboard has connector for both configuration cards, programmable and static as well as for standardized add-on boards for all the configurable components in the laboratory circuit. Acquisition hardware can easily be changed both during development and after the creation of the lab.

  11. Implementing a Domain Specific Language to configure and run LHCb Continuous Integration builds

    Science.gov (United States)

    Clemencic, M.; Couturier, B.

    2015-12-01

    The new LHCb nightly build system described at CHEP 2013 was limited by the use of JSON files for its configuration. JSON had been chosen as a temporary solution to maintain backward compatibility towards the old XML format by means of a translation function. Modern languages like Python leverage on meta-programming techniques to enable the development of Domain Specific Languages (DSLs). In this contribution we will present the advantages of such techniques and how they have been used to implement a DSL that can be used to both describe the configuration of the LHCb Nightly Builds and actually operate them.

  12. A note on an integration by parts formula for the generators of uniform translations on configuration space

    CERN Document Server

    Conrad, Florian

    2011-01-01

    An integration by parts formula is derived for the first order differential operator corresponding to the action of translations on the space of locally finite simple configurations of infinitely many points on R^d. As reference measures, tempered grand canonical Gibbs measures are considered corresponding to a non-constant non-smooth intensity (one-body potential) and translation invariant potentials fulfilling the usual conditions. It is proven that such Gibbs measures fulfill the intuitive integration by parts formula if and only if the action of the translation is not broken for this particular measure. The latter is automatically fulfilled in the high temperature and low intensity regime.

  13. The Energy-Water Nexus: An Analysis and Comparison of Various Configurations Integrating Desalination with Renewable Power

    Directory of Open Access Journals (Sweden)

    Gary M. Gold

    2015-04-01

    Full Text Available This investigation studies desalination powered by wind and solar energy, including a study of a configuration using PVT solar panels. First, a water treatment was developed to estimate the power requirement for brackish groundwater reverse-osmosis (BWRO desalination. Next, an energy model was designed to (1 size a wind farm based on this power requirement and (2 size a solar farm to preheat water before reverse osmosis treatment. Finally, an integrated model was developed that combines results from the water treatment and energy models. The integrated model optimizes performances of the proposed facility to maximize daily operational profits. Results indicate that integrated facility can reduce grid-purchased electricity costs by 88% during summer months and 89% during winter when compared to a stand-alone desalination plant. Additionally, the model suggests that the integrated configuration can generate $574 during summer and $252 during winter from sales of wind- and solar-generated electricity to supplement revenue from water production. These results indicate that an integrated facility combining desalination, wind power, and solar power can potentially reduce reliance on grid-purchased electricity and advance the use of renewable power.

  14. Influence of water solubility, side chain degradability and side chain configuration on the degradation of phthalic acid esters under methanogenic conditions

    Energy Technology Data Exchange (ETDEWEB)

    Alnervik, M.

    1996-12-31

    Water solubility and degradability of side chains estrifying phthalic acid are factors possible to influence the degradation of phthalic acid esters (PAEs). To investigate the importance of these factors degradation of butyl 2-ethylhexyl phthalate (BEHP), bis(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP), dihexyl phthalate (DHP), dioctyl phthalate (DOP) and didecyl phthalate (DDP) were examined under methanogenic conditions as well as was the degradability of the alcohols estrifying these PAEs. We also investigated if the degradation of resistant PAEs could be stimulated by the addition of a degradable PAE. Synthesis of degradation intermediates and two methods for PAE analyses are presented. The investigation showed that all alcohols were degraded to methane and carbon dioxide and that the degradation of PAE occurred in incubations amended with BBP, BEHP, DHP and DBP, whilst DEHP, DOP and DDP were unaffected throughout the experimental period. BBP added to incubations with DEHP, could not stimulate DEHP degradation. In conclusion, the degradability of alcohols estrifying phthalic acid in this study does not affect the anaerobic degradability of PAEs. Water solubility of a PAE can not be rejected as a factor limiting phthalate degradation under methanogenic conditions. Anaerobic degradation of persistent PAEs can not be stimulated by mixing it with a degradable phthalate. 23 refs, 11 figs, 2 tabs

  15. Microsatellite allele dose and configuration establishment (MADCE): an integrated approach for genetic studies in allopolyploids

    NARCIS (Netherlands)

    Dijk, van T.; Noordijk, Y.; Dubos, T.; Bink, M.C.A.M.; Visser, R.G.F.; Weg, van de W.E.

    2012-01-01

    BACKGROUND: Genetic studies in allopolyploid plants are challenging because of the presence of similar sub-genomes, which leads to multiple alleles and complex segregation ratios. In this study, we describe a novel method for establishing the exact dose and configuration of microsatellite alleles fo

  16. Ocean Thermal Energy Conversion (OTEC) platform configuration and integration. Volume II. Conceptual design. Final report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1978-06-01

    The purpose of this project is to evaluate six candidate hullforms as candidates for the OTEC commercial plant. This volume is a summary of the conceptual design including facility requirements, cost, schedule, and site sensitivity. Two OTEC commercial plant configurations are considered in this study: the ship and the semi-submersible. Engineering drawings are presented. (WHR)

  17. Solution of Faddeev integral equations in configuration space using the hyperspherical harmonics expansion method

    CERN Document Server

    Kovalchuk, V I

    2016-01-01

    A method has been developed to solve three-particle Faddeev equations in the configuration space making use of a series expansion in hyperspherical harmonics. The following parameters of the bound state of triton and helium-3 nuclei have been calculated: the binding energies, the weights of symmetric and mixed-symmetry components of the wave function, the magnetic moments, and the charge radii.

  18. Tool for a configurable integrated circuit that uses determination of dynamic power consumption

    Science.gov (United States)

    French, Matthew C. (Inventor); Wang, Li (Inventor); Agarwal, Deepak (Inventor); Davoodi, Azadeh (Inventor)

    2011-01-01

    A configurable logic tool that allows minimization of dynamic power within an FPGA design without changing user-entered specifications. The minimization of power may use minimized clock nets as a first order operation, and a second order operation that minimizes other factors, such as area of placement, area of clocks and/or slack.

  19. FORMING OF THE SUSTAINABLE SUPPLY CHAINS BASED ON INCREASING OF THEIR INTEGRATED ENERGY EFFICIENCY

    Directory of Open Access Journals (Sweden)

    SHVETS V. J.

    2016-03-01

    Full Text Available Purpose. Key challenges and barriers of mining machinery enterprises in the context of forming sustainable supply chains in the mining industry are specified. Methodology. The algorithm of forming the industrial relations, which are carried out by the enterprises of mining machinery in order to increase the sustainable development of a mining industry, is offered. Conclusions.. Modern supply chains are confronted with dynamic trends and developments that are hard to predict. In order to respond to these changes and remain competitive advantage, companies should be able to identify and understand new sustainability issues in their branches. It is established that in the conditions of globalization of the market and the general orientation of Ukraine’s economy to the European principles of development, for mining machinery enterprises a proof of the commitment and observance of requirements of energy efficiency, i.e. energy saving, energy safety and social energy responsibility are very important. Supply channels should increase not only energy efficiency, economic and production stability of the company, but also strengthen the stability of all participants in the production chain, as well as other stakeholders (business partners, customers, investors, local communities, etc.. Originality. The interrelation of an indicator of energy efficiency in forming sustainable supply chain in a mining industry is established. Practical value. Using the principles of sustainable development in the forming of value chains will improve energy efficiency of industry in general; provide a competitive advantage to entry into the global production chains in terms of European integration of Ukraine.

  20. APPLYING A JUST-IN-TIME INTEGRATED SUPPLY CHAIN MODEL WITH INVENTORY AND WASTE REDUCTION CONSIDERATIONS

    Directory of Open Access Journals (Sweden)

    Li-Hsing Ho

    2013-01-01

    Full Text Available Just-In-Time (JIT has been playing an important role in supply chain environments. Countless firms have been applying JIT in production to gain and maintain a competitive advantage. This study introduces an innovative model which integrates inventory and quality assurance in a JIT supply chain. This approach assumes that manufacturing will produce some defective items and those products will not influence the buyer’s purchase policy. The vendor absorbs all the inspection costs. Using a function to compute the expected amount of total cost every year will minimize the total cost and the nonconforming fraction. Finally, a numerical example further confirms this model.

  1. Integrable open spin-chains in AdS3/CFT2 correspondences

    OpenAIRE

    Prinsloo, Andrea(Department of Mathematics, University of Surrey, Guildford, GU2 7XH, United Kingdom); Regelskis, Vidas; Torrielli, Alessandro

    2015-01-01

    We study integrable open boundary conditions for d(2,1;\\alpha)^2 and psu(1,1|2)^2 spin-chains. Magnon excitations of these open spin-chains are mapped to massive excitations of type IIB open superstrings ending on D-branes in the AdS_3 x S^3 x S^3 x S^1 and AdS_3 x S^3 x T^4 supergravity geometries with pure R-R flux. We derive reflection matrix solutions of the boundary Yang-Baxter equation which intertwine representations of a variety of boundary coideal subalgebras of the bulk Hopf superal...

  2. Making alliances work -- Using a computer-based management system to integrate the supply chain

    International Nuclear Information System (INIS)

    Traditionally, price has been king in the selection of suppliers and service companies in the upstream oil and gas market. Three years ago, Amoco began to question this selection practice and embarked on an extensive benchmarking effort that has led the company to a proven strategy for goods and services procurement called supply-chain management (SCM). However, the company found that managing compact, integrated supply chains is not always easy. Several implementation issues need to be reconciled for alliances to achieve their full bottom-line potential benefits consistently. Issues that must be resolved, whether they are called alliances, supply chains, or integrated services, are (1) whether these new working relationships are profitable for all the entities involved, from suppliers through to end users; (2) how to assess and improve risk management; (3) how to reduce total system costs; and (4) how to improve performance for each of the alliance members and for the alliance as a whole. This brief describes one possible solution to the complex issues involved in making alliances work: a computer-facilitated management system designed to integrate the work processes of different organizations. In the case described, the Drilling Management System (DMS) was developed and used by the Amoco (U.K.) Well Dept. The system uses off-the-shelf commercial software to improve the performance of the company's drilling operations by integrating the activities of the company and its suppliers

  3. Highly configurable low cost remote laboratory with integrated support for learning – Hardware design

    OpenAIRE

    Dag A. H. Samuelsen; Olaf H. Graven

    2013-01-01

    This paper presents a flexible and low cost design specification for a remote laboratory platform for electronics laboratories. The system utilises a motherboard design and this paper presents both the design of the motherboard, various designs for add on cards and shows how to configure the setup. The design is focused on providing the user with a combination of easy setup and a large freedom in reconfiguration all provided as a low cost solution. The solution is designed to facilitate a nat...

  4. Solution of Faddeev integral equations in configuration space using the hyperspherical harmonics expansion method

    Science.gov (United States)

    Kovalchuk, Valery I.

    2014-11-01

    In this paper, a method has been developed to solve three-particle Faddeev equations in the configuration space making use of a series expansion in hyperspherical harmonics. The following parameters of the bound state of triton and helium-3 nuclei have been calculated: the binding energies, the weights of symmetric and mixed-symmetry components of the wave function, the magnetic moments, and the charge radii.

  5. Forecasting return products in an integrated forward/reverse supply chain utilizing an ANFIS

    DEFF Research Database (Denmark)

    Kumar, D. T.; Soleimani, H.; Kannan, G.

    2014-01-01

    is to deal with the important gap of the uncertainties of return products. Therefore, we discuss the forecasting method of return products which have their own open-loop supply chain. We develop an integrated two-phase methodology to cope with the closed-loop supply chain design and planning problem....... In the first phase, an Adaptive Network Based Fuzzy Inference System (ANFIS) is presented to handle the uncertainties of the amounts of return product and to determine the forecasted return rates. In the second phase, and based on the results of the first one, the proposed multi-echelon, multi-product, multi......-period, closed-loop supply chain network is optimized. The second-phase optimization is undertaken based on using general exact solvers in order to achieve the global optimum. Finally, the performance of the proposed forecasting method is evaluated in 25 periods using a numerical example, which contains...

  6. An integrated multi-stage supply chain inventory model with imperfect production process

    Directory of Open Access Journals (Sweden)

    Soumita Kundu

    2015-09-01

    Full Text Available This paper deals with an integrated multi-stage supply chain inventory model with the objective of cost minimization by synchronizing the replenishment decisions for procurement, production and delivery activities. The supply chain structure examined here consists of a single manufacturer with multi-buyer where manufacturer orders a fixed quantity of raw material from outside suppliers, processes the materials and delivers the finished products in unequal shipments to each customer. In this paper, we consider an imperfect production system, which produces defective items randomly and assumes that all defective items could be reworked. A simple algorithm is developed to obtain an optimal production policy, which minimizes the expected average total cost of the integrated production-inventory system.

  7. Fuzzy Multi-Objective Programming Model for Facility Location in an Integrated Supply Chain Network

    Directory of Open Access Journals (Sweden)

    Hüseyin Ali Sarıkaya

    2014-05-01

    Full Text Available Traditional supply chain network design problems are often taken as a single objective. However, supply chains are complex networks formed by organizations having conflicting objectives with each other in real life. In this study, a multi-product, multi-stage and multi-period planning model is proposed to achieve multiple incommensurable goals in an integrated supply chain network with uncertain market demands. The supply chain planning model is constructed as a mixed-integer nonlinear programming problem to satisfy several conflicting objectives with each other. The proposed model consists of two objective functions. The first one is minimizing the fixed opening and operating costs with transportation costs determined depending on distances. Second one is minimizing the purchasing, ordering, inventory and backlogging costs according to Economic Production Quantity (EPQ model. Fuzzy goal programming approach is used in order to include decision maker's imprecise goal values in proposed model. The model is solved using GAMS optimization program. The application results presented in this study, demonstrates that fuzzy modeling and solution approaches could be used in the creation of more realistic models of the supply chain.

  8. Intelligent Supply Chain Integration and Management Based on Cloud of Things

    OpenAIRE

    Junwei Yan; Sijin Xin; Quan Liu; Wenjun Xu; Liwen Yang; Li Fan; Bo Chen; Qiang Wang

    2014-01-01

    The fierce global competition and market turbulence has been forcing the enterprises towards to the integration and intelligence for supply chain management, and the seamless information sharing and collaboration as well as operation agility are the challenges which need to be conquered, in terms of the highly distributed and heterogeneous resources located in separated warehouses. Although a number of works have been done to achieve the aforementioned targets, few of them are able to provide...

  9. Opportunities and Barriers related to Supply Chain Collaboration for Delivering Integrated Single-Family Home Renovations

    OpenAIRE

    Mlecnik, E.; Kondratenko, I.; Haavik, T.

    2013-01-01

    Single-family home renovations often show deficiencies in project management. There might be a market addressing house owners who would prefer integrated renovation services and clear responsibilities. Companies that would respond to these client’s needs would have a clear market potential, particularly for ambitious energyefficient home renovations. Such enterprises could result from collaboration between different enterprises. This paper first examined the business activity and supply chain...

  10. BiodieselFAO: An Integrated Decision Support System for Investment Analysis in the Biodiesel Production Chain

    OpenAIRE

    Aziz Galvão da Silva Júnior

    2015-01-01

    In the short and medium terms, biofuels are the most viable alternative to reduce the environmental impact of fossil fuels. The recent controversy over the competition between biofuels and food production increases the complexity of investment decisions in the biodiesel production chain. In this context, decision support tools are highly relevant. The purpose of this article is to describe the BiodieselFAO using the Unified Modeling Language (UML). An integrated analysis considering both agri...

  11. A case of integration of organic dairy sheep farm in value chains in Bulgaria

    OpenAIRE

    Bachev, Hrabrin

    2010-01-01

    This paper presents the state of integration of small scale dairy farms in value chains in Bulgaria and a case study on organic farming as a new prospective approach for market inclusion. It outlines the evolution of dairy sheep farming and organic production; analyzes the pace, factors and impacts of development of a successful organic dairy sheep farm from North-West Bulgaria; specifies driving factors and prospects of small-scale organic farming development; assesses possibilities for repl...

  12. Integrated configurable equipment selection and line balancing for mass production with serial-parallel machining systems

    Science.gov (United States)

    Battaïa, Olga; Dolgui, Alexandre; Guschinsky, Nikolai; Levin, Genrikh

    2014-10-01

    Solving equipment selection and line balancing problems together allows better line configurations to be reached and avoids local optimal solutions. This article considers jointly these two decision problems for mass production lines with serial-parallel workplaces. This study was motivated by the design of production lines based on machines with rotary or mobile tables. Nevertheless, the results are more general and can be applied to assembly and production lines with similar structures. The designers' objectives and the constraints are studied in order to suggest a relevant mathematical model and an efficient optimization approach to solve it. A real case study is used to validate the model and the developed approach.

  13. Exact solution of the open XXZ chain with general integrable boundary terms at roots of unity

    CERN Document Server

    Murgan, R; Shi, C; Murgan, Rajan; Nepomechie, Rafael I.; Shi, Chi

    2006-01-01

    We propose a Bethe-Ansatz-type solution of the open spin-1/2 integrable XXZ quantum spin chain with general integrable boundary terms and bulk anisotropy values i \\pi/(p+1), where p is a positive integer. All six boundary parameters are arbitrary, and need not satisfy any constraint. The solution is in terms of generalized T - Q equations, having more than one Q function. We find numerical evidence that this solution gives the complete set of 2^N transfer matrix eigenvalues, where N is the number of spins.

  14. Research on Operation Mechanism of Civil-military Integration Equipment Support Supply Chain

    Directory of Open Access Journals (Sweden)

    Zhou Chang Feng

    2016-01-01

    Full Text Available High-tech local wars under conditions of informatization is becoming increasingly dependent on the security of weapons and equipment, and civil-military integration equipment support has become a trend. Civil-military integration equipment support chain construction vigorously, must be starting from the strengthening of the top-level planning decisions, building the civil-military coordination and restraint mechanisms and establishing efficient incentives and effective oversight mechanisms to ensure the performance of various support tasks, and to enhance the equipment support ability to achieve “fast, accurate, and efficient” goals.

  15. chains

    Directory of Open Access Journals (Sweden)

    Gabriel Pérez-Salas

    2015-01-01

    Full Text Available Las barreras y aranceles al comercio exterior han disminuido significativamente gracias a los acuerdos multilaterales y los mecanismos de integración entre las naciones. Los costos logísticos representan una proporción significativa del precio final de los artículos, especialmente de los commodities. Por esta razón, minimizar los costos logísticos es un desafío importante para las naciones para fomentar la competitividad del comercio exterior y en particular para aprovechar la renta de los recursos naturales. En este artículo, proponemos un marco de referencia integral para la medición de costos logísticos, enfocado en determinar los extra-costos que resultan por procedimientos ineficientes y la falta de políticas públicas y regulaciones de las entidades públicas. Estos elementos no han sido considerados en la literatura, y este artículo aborda esta brecha. Como caso de estudio, presentamos la aplicación del marco de referencia para estimar los extra-costos en algunas cadenas logísticas de recursos naturales en Bolivia. Se presenta una discusión de los resultados encontrados, así como recomendaciones para trabajo futuro.

  16. SECAD-- a Schema-based Environment for Configuring, Analyzing and Documenting Integrated Fusion Simulations. Final report

    International Nuclear Information System (INIS)

    SECAD is a project that developed a GUI for running integrated fusion simulations as implemented in FACETS and SWIM SciDAC projects. Using the GUI users can submit simulations locally and remotely and visualize the simulation results

  17. A new integral representation for the scalar products of Bethe states for the XXX spin chain

    CERN Document Server

    Kazama, Yoichi; Nishimura, Takuya

    2013-01-01

    Based on the method of separation of variables due to Sklyanin, we construct a new integral representation for the scalar products of the Bethe states for the SU(2) XXX spin 1/2 chain obeying the periodic boundary condition. Due to the compactness of the symmetry group, a twist matrix must be introduced at the boundary in order to extract the separated variables properly. Then by deriving the integration measure and the spectrum of the separated variables, we express the inner product of an on-shell and an off-shell Bethe states in terms of a multiple contour integral involving a product of Baxter wave functions. Its form is reminiscent of the integral over the eigenvalues of a matrix model and is expected to be useful in studying the semi-classical limit of the product.

  18. A new integral representation for the scalar products of Bethe states for the XXX spin chain

    Science.gov (United States)

    Kazama, Yoichi; Komatsu, Shota; Nishimura, Takuya

    2013-09-01

    Based on the method of separation of variables due to Sklyanin, we construct a new integral representation for the scalar products of the Bethe states for the SU(2) XXX spin 1/2 chain obeying the periodic boundary condition. Due to the compactness of the symmetry group, a twist matrix must be introduced at the boundary in order to extract the separated variables properly. Then by deriving the integration measure and the spectrum of the separated variables, we express the inner product of an on-shell and an off-shell Bethe states in terms of a multiple contour integral involving a product of Baxter wave functions. Its form is reminiscent of the integral over the eigenvalues of a matrix model and is expected to be useful in studying the semi-classical limit of the product.

  19. Power trench gate MOSFET with an integrated 6-pack configuration for a 3-phase inverter

    Science.gov (United States)

    Won, Jong-Il; Koo, Jin-Gun; Cho, Doo-Hyung; Park, Kun-Sik; Yang, Yil-Suk; Kim, Sang-Gi

    2015-10-01

    In this paper, we present a new 6-pack power module for a 3-phase inverter that is integrated with the six trench gate double diffused metal-oxide semiconductor field-effect transistor (TDMOS) on a single chip. An integration of each power device is performed through a trench isolation technique using deep reactive-ion etching trench technologies. Through this new technology, the integrated power metal-oxide semiconductor field-effect transistor (MOSFET) produces a high current of above 30 A at a gate bias of 10 V. In addition, each trench power MOSFET (1-pack) has a minimum specific on-resistance of 21 mohm.cm2 and a typical breakdown voltage of 95 V. The trench isolation provides good isolation up to 120 V. The measurement results show that this 6-pack structure can successfully be integrated with other analog/driver integrated circuit on a single chip. Furthermore, to monitor the operating current of the MOSFET under an inverter-operating condition, sensing FET is integrated a FET into the main MOSFET source region without compromising either the area or the operation of the MOSFET.

  20. The electronic mean-field configuration interaction method. I. Theory and integral formulas

    Science.gov (United States)

    Cassam-Chenaï, Patrick

    2006-05-01

    In this article, we introduce a new method for solving the electronic Schrödinger equation. This new method follows the same idea followed by the mean-field configuration interaction method already developed for molecular vibrations; i.e., groups of electronic degrees of freedom are contracted together in the mean field of the other degrees. If the same partition of electronic degrees of freedom is iterated, a self-consistent field method is obtained. Making coarser partitions (i.e., including more degrees in the same groups) and discarding the high energy states, the full configuration interaction limit can be approached. In contrast with the usual group function theory, no strong orthogonality condition is enforced. We have made use of a generalized version of the fundamental formula defining a Hopf algebra structure to derive Hamiltonian and overlap matrix element expressions which respect the group structure of the wave function as well as its fermionic symmetry. These expressions are amenable to a recursive computation.

  1. Propulsion Airframe Aeroacoustic Integration Effects for a Hybrid Wing Body Aircraft Configuration

    Science.gov (United States)

    Czech, Michael J.; Thomas, Russell H; Elkoby, Ronen

    2012-01-01

    An extensive experimental investigation was performed to study the propulsion airframe aeroacoustic effects of a high bypass ratio engine for a hybrid wing body aircraft configuration where the engine is installed above the wing. The objective was to provide an understanding of the jet noise shielding effectiveness as a function of engine gas condition and location as well as nozzle configuration. A 4.7% scale nozzle of a bypass ratio seven engine was run at characteristic cycle points under static and forward flight conditions. The effect of the pylon and its orientation on jet noise was also studied as a function of bypass ratio and cycle condition. The addition of a pylon yielded significant spectral changes lowering jet noise by up to 4 dB at high polar angles and increasing it by 2 to 3 dB at forward angles. In order to assess jet noise shielding, a planform representation of the airframe model, also at 4.7% scale was traversed such that the jet nozzle was positioned from downstream of to several diameters upstream of the airframe model trailing edge. Installations at two fan diameters upstream of the wing trailing edge provided only limited shielding in the forward arc at high frequencies for both the axisymmetric and a conventional round nozzle with pylon. This was consistent with phased array measurements suggesting that the high frequency sources are predominantly located near the nozzle exit and, consequently, are amenable to shielding. The mid to low frequency sources were observed further downstream and shielding was insignificant. Chevrons were designed and used to impact the distribution of sources with the more aggressive design showing a significant upstream migration of the sources in the mid frequency range. Furthermore, the chevrons reduced the low frequency source levels and the typical high frequency increase due to the application of chevron nozzles was successfully shielded. The pylon was further modified with a technology that injects air

  2. New configurations of a heat recovery absorption heat pump integrated with a natural gas boiler for boiler efficiency improvement

    Energy Technology Data Exchange (ETDEWEB)

    Qu, Ming [Purdue University, West Lafayette, IN; Abdelaziz, Omar [ORNL; Yin, Hongxi [Southeast University, Nanjing, China

    2014-11-01

    Conventional natural gas-fired boilers exhaust flue gas direct to the atmosphere at 150 200 C, which, at such temperatures, contains large amount of energy and results in relatively low thermal efficiency ranging from 70% to 80%. Although condensing boilers for recovering the heat in the flue gas have been developed over the past 40 years, their present market share is still less than 25%. The major reason for this relatively slow acceptance is the limited improvement in the thermal efficiency of condensing boilers. In the condensing boiler, the temperature of the hot water return at the range of 50 60 C, which is used to cool the flue gas, is very close to the dew point of the water vapor in the flue gas. Therefore, the latent heat, the majority of the waste heat in the flue gas, which is contained in the water vapor, cannot be recovered. This paper presents a new approach to improve boiler thermal efficiency by integrating absorption heat pumps with natural gas boilers for waste heat recovery (HRAHP). Three configurations of HRAHPs are introduced and discussed. The three configurations are modeled in detail to illustrate the significant thermal efficiency improvement they attain. Further, for conceptual proof and validation, an existing hot water-driven absorption chiller is operated as a heat pump at operating conditions similar to one of the devised configurations. An overall system performance and economic analysis are provided for decision-making and as evidence of the potential benefits. These three configurations of HRAHP provide a pathway to achieving realistic high-efficiency natural gas boilers for applications with process fluid return temperatures higher than or close to the dew point of the water vapor in the flue gas.

  3. Assessing the level of integration in the offshore wind industry value chain

    DEFF Research Database (Denmark)

    Martinez-Neri, Ivan; Mikkelsen, Ole Stegmann; Stentoft, Jan

    2014-01-01

    The offshore wind industry (OWI) has experienced an explosive growth within the course of a decade and because of this rapid expansion, the industry has not had the opportunity to integrate well and be-come more efficient. The aim of this paper is to contribute to the understanding...... of the integration level of the offshore wind industry value chain. The work relies on a review of international peer-reviewed journals. The empirical basis of the paper is based on interviews with key players in the industry. The scope of this study covers the wind turbine generator, foundations, subsea cables......, offshore substation, installation vessels and the wind farm developer. The preliminary findings are that the different indus-trial sectors participating in the OWI are not aware of the maturity level of the sector. The fact that some developers are disintegrating the already integrated supply of some...

  4. Equilibrium dynamical correlations in the Toda chain and other integrable models

    CERN Document Server

    Kundu, Aritra

    2016-01-01

    We investigate the form of equilibrium spatio-temporal correlation functions of conserved quantities, and of energy transport in the Toda lattice and in other integrable models. From numerical simulations we find that the correlations satisfy ballistic scaling with a remarkable collapse of data from different times. We examine special limiting choices of parameter values, for which the Toda lattice tends to either the harmonic chain or the equal mass hard-particle gas. In both these limiting cases, one can obtain the correlations exactly and we find excellent agreement with the direct Toda simulation results. We also discuss a transformation to "normal mode" variables, as commonly done in hydrodynamic theory of non-integrable systems, and find that this is useful, to some extent, even for the integrable system.

  5. Effect of cavity flame holder configuration on combustion flow field performance of integrated hypersonic vehicle

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    As one of the most common methods to be used as the flame holding mechanism in the propulsion system of the integrated hypersonic vehicle,the research of cavity flame holder has drawn an ever increasing attention of many researchers. The two-dimensional coupled implicit NS equations,the standard k-ε turbulent models and the finite-rate/eddy-dissipation reaction model were employed to simulate the experimental items arranged by the orthogonal design,and the variance analysis method was used to investigate the effects of the geometric parameters of the cavity flame holder on the aero-propulsive performance of the integrated hypersonic vehicle,namely the depth,the ratio of length-to-depth and the sweepback angle. The obtained results show that the geometric parameters make only a little difference to the aero-propulsive performance of the vehicle in the range considered in this paper,and the cavity flame holder with its sweepback angle 45° can satisfy the performance requirement of the integrated hypersonic vehicle further. The hydrogen injected from the upper stream of the cavity makes the boundary layer separate on the lower wall of the engine,and a separate region appears in the upper stream and down stream of the injection slot,respectively.

  6. Beyond Sexual Orientation: Integrating Gender/Sex and Diverse Sexualities via Sexual Configurations Theory.

    Science.gov (United States)

    van Anders, Sari M

    2015-07-01

    Sexual orientation typically describes people's sexual attractions or desires based on their sex relative to that of a target. Despite its utility, it has been critiqued in part because it fails to account for non-biological gender-related factors, partnered sexualities unrelated to gender or sex, or potential divergences between love and lust. In this article, I propose Sexual Configurations Theory (SCT) as a testable, empirically grounded framework for understanding diverse partnered sexualities, separate from solitary sexualities. I focus on and provide models of two parameters of partnered sexuality--gender/sex and partner number. SCT also delineates individual gender/sex. I discuss a sexual diversity lens as a way to study the particularities and generalities of diverse sexualities without privileging either. I also discuss how sexual identities, orientations, and statuses that are typically seen as misaligned or aligned are more meaningfully conceptualized as branched or co-incident. I map out some existing identities using SCT and detail its applied implications for health and counseling work. I highlight its importance for sexuality in terms of measurement and social neuroendocrinology, and the ways it may be useful for self-knowledge and feminist and queer empowerment and alliance building. I also make a case that SCT changes existing understandings and conceptualizations of sexuality in constructive and generative ways informed by both biology and culture, and that it is a potential starting point for sexual diversity studies and research.

  7. Ocean Thermal Energy Conversion (OTEC) platform configuration and integration. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Scott, R. J.

    1978-07-01

    Studies leading to the development of conceptual designs for two 400 MW Offshore Thermal Energy Conversion (OTEC) Commercial Plants are summarized. A detailed overview of the study Final Report which was completed in Jun 1978 is presented. The successful deployment of a Commercial OTEC Plant in the near term is dependent upon the optimization of the platform configuration and power plant output level. The optimization procedure is based on both technical and economic factors and is used to evaluate a relatively large number of alternatives; i.e., six hullforms, five plant outputs ranging from 50 to 500 megawatts (MW), and three deployment sites. The hullforms under consideration include the ship (barge), cylinder (disc), spar, submersible, semi-submersible, and sphere; while the deployment sites are Hawaii, New Orleans, and Key West. The second part of the Summary describes the development of the two platforms selected by DOE to be carried through the Conceptual Design level: a 400 MW ship and semi-submersible. These studies include platform and cold water pipe (CWP) optimization trade-offs, arrangements, structure, position control, seawater systems, and auxiliary systems. Deployment concepts are also discussed, followed by definition of costs and schedules for both alternatives. A development plan to bring both Commercial Plant alternatives to fruition via an intermediate 100 MW Demonstration Plant which will reduce technical risks to an acceptable level is presented.

  8. Beyond Sexual Orientation: Integrating Gender/Sex and Diverse Sexualities via Sexual Configurations Theory.

    Science.gov (United States)

    van Anders, Sari M

    2015-07-01

    Sexual orientation typically describes people's sexual attractions or desires based on their sex relative to that of a target. Despite its utility, it has been critiqued in part because it fails to account for non-biological gender-related factors, partnered sexualities unrelated to gender or sex, or potential divergences between love and lust. In this article, I propose Sexual Configurations Theory (SCT) as a testable, empirically grounded framework for understanding diverse partnered sexualities, separate from solitary sexualities. I focus on and provide models of two parameters of partnered sexuality--gender/sex and partner number. SCT also delineates individual gender/sex. I discuss a sexual diversity lens as a way to study the particularities and generalities of diverse sexualities without privileging either. I also discuss how sexual identities, orientations, and statuses that are typically seen as misaligned or aligned are more meaningfully conceptualized as branched or co-incident. I map out some existing identities using SCT and detail its applied implications for health and counseling work. I highlight its importance for sexuality in terms of measurement and social neuroendocrinology, and the ways it may be useful for self-knowledge and feminist and queer empowerment and alliance building. I also make a case that SCT changes existing understandings and conceptualizations of sexuality in constructive and generative ways informed by both biology and culture, and that it is a potential starting point for sexual diversity studies and research. PMID:25772652

  9. Supply chain integration in the building industry: The emergence of integrated and repetitive strategies in a fragmented and project-driven industry

    OpenAIRE

    Vrijhoef, R.

    2011-01-01

    The building industry is a fragmented and project-driven industry with specific characteristics, which can sometimes result in negative effects. Reference has often been made to other industries, particularly manufacturing, that would function more effectively and efficiently. Major differences between both include the organisation and coordination of the supply chain. Supply chain integration has been suggested as a solution for the building supply chain. This thesis has aimed to contribute ...

  10. Integrable spin chains with U(1)3 symmetry and generalized Lunin-Maldacena backgrounds

    International Nuclear Information System (INIS)

    We consider the most general three-state spin chain with U(1)3 symmetry and nearest neighbour interaction. Our model contains as a special case the spin chain describing the holomorphic three scalar sector of the three parameter complex deformation of N = 4 SYM, dual to type IIB string theory in the generalized Lunin-Maldacena backgrounds discovered by Frolov. We formulate the coordinate space Bethe ansatz, calculate the S-matrix and determine for which choices of parameters the S-matrix fulfills the Yang-Baxter equations. For these choices of parameters we furthermore write down the R-matrix. We find in total four classes of integrable models. In particular, each already known model of the above type is nothing but one in a family of such models

  11. A process chain for integrating microfluidic interconnection elements by micro-overmoulding of thermoplastic elastomers

    International Nuclear Information System (INIS)

    This paper presents a process chain for in-line integration of microfluidic interconnection elements by a variant of micro-injection moulding (µIM). A SEBS-based thermoplastic elastomer (TPE) was moulded over polymethylmethacrylate (PMMA) to produce a hybrid microfluidic structure with an aspect ratio of 2. The process chain implemented micro-milling for fabricating micro-structured tool inserts, and µIM and micro-overmoulding was used for replication. A two-plate mould was used for moulding the substrate, whilst a three-plate mould with a replaceable insert was used for TPE overmoulding. The presented application was an interconnect system for a microfluidic device, which enabled direct fitting of standard tubes into microfluidic substrates. A leakage test showed that the interconnection was leak-proof within a range of flow rates between 0.32 and 0.62 ml min−1.

  12. Business Process Modelling Languages in Designing Integrated Information System for Supply Chain Management

    Directory of Open Access Journals (Sweden)

    Mohsen Mohammadi

    2012-01-01

    Full Text Available A business process model is very germane to the formation of an appropriate information system. For a marked infusion of business processes in the supply chain, the status quo regarding the processes must be totally understood and well secured. Business activities and sequence have to be well kept and properly coordinated by predicting business procedures process from diverse views. This study examines seven BPMLs Data Flow Diagram (DFD, Unified Modelling Language (UML, Business Process Modelling Notation(BPMN, Event Driven Process Chain (EPC, IDEF, Petri Net, and Role Activity Diagram (RAD. The submissions of this study are the subject of the Business Process Modelling Languages (BPMLs in developing an integrated dissemination mechanism and classification of modelling tools.

  13. Methodology for Supply Chain Integration: A Case Study in the Artisan Industry of Footwear

    Directory of Open Access Journals (Sweden)

    Jorge Raúl Pérez-Gallardo

    2014-01-01

    Full Text Available The supply chain is a major issue in a global market. The efficient relationship between supplier-producer-retailer conforms the perfect combination to achieve a high level of competitiveness according to the needs of increasingly demanding and changing markets. The difficulty of synchronizing the members within the SC is related to the inherent uncertain factors. This paper proposes a methodology for integrating the supply chain that can be applied in any type of business. To demonstrate its relevance, a case study is performed at a handmade shoe company. An improved demand forecasting, an optimal balanced production line, a proper inventory management of raw materials, and an efficient calculation of the delivery time to the customer represent some of the main results.

  14. The need for integration in the supply chain of vegetable production

    DEFF Research Database (Denmark)

    Deleuran, Lise Christina; Jelsøe, Erling; Boelt, Birte

    2008-01-01

    One of the challenges in food production is to ensure sufficient food and feed globally. In order to overcome food shortages there is a current need for a better integration in the supply chain of food production and inclusion of an overlooked issue in many supply chains - the availability...... comprise several dimensions, such as freshness, taste, texture and appearance, and increasingly quality dimensions that are associated with the origin of the product and the way food products have been produced have gained importance, at least to some segments of consumers. In this situation the origin...... interested in the origin of the product? Are they interested to know where the seeds come from or if they are organic or maybe genetically modified? Are they aware of the quality of the product they consume? Based on the considerations presented above, we have initiated a research project with the aim...

  15. Open spin chains with generic integrable boundaries: Baxter equation and Bethe ansatz completeness from SOV

    CERN Document Server

    Kitanine, N; Niccoli, G

    2014-01-01

    We solve the longstanding problem to define a functional characterization of the spectrum of the transfer matrix associated to the most general spin-1/2 representations of the 6-vertex reflection algebra for general inhomogeneous chains. The corresponding homogeneous limit reproduces the spectrum of the Hamiltonian of the spin-1/2 open XXZ and XXX quantum chains with the most general integrable boundaries. The spectrum is characterized by a second order finite difference functional equation of Baxter type with an inhomogeneous term which vanishes only for some special but yet interesting non-diagonal boundary conditions. This functional equation is shown to be equivalent to the known separation of variable (SOV) representation hence proving that it defines a complete characterization of the transfer matrix spectrum. The polynomial character of the Q-function allows us then to show that a finite system of equations of generalized Bethe type can be similarly used to describe the complete transfer matrix spectru...

  16. Innovation in Hungary - The Impact of EU Accession and Integration into Global Value Chains

    Directory of Open Access Journals (Sweden)

    Szalavetz Andrea

    2014-11-01

    Full Text Available This paper argues that EU accession has brought about minimal changes in the patterns of innovation in Hungary. The reason why is not that the ‘EU factor’ is of minor importance; rather, it is Hungary's inability to use EU resources effectively, so as to fully benefit from EU membership. The Hungarian story also demonstrates that the EU cannot block member states from reversing reform or abusing the opportunities EU membership offers to them. We contend that globalization (global value chain integration has more effectively contributed to Hungary's knowledge-based upgrading than Europeanization (in the sense of policy transfer; access to EU Structural & Cohesion Funds, and integration in the European Research Area. This argument is substantiated with a case study on innovation strategy design and implementation, which illustrates the ambiguous impact of Europeanization, which is contrasted with our investigation of integration in global value chains, conducted through interviews of foreign-owned manufacturing companies about their R&D-based upgrading experience.

  17. Role of Third Party Logistics Providers with Advanced it to Increase Customer Satisfaction in Supply Chain Integration

    OpenAIRE

    Zaryab Sheikh; Shafaq Rana

    2012-01-01

    The main area of change in organizational strategy is the extensive use of third party logistics providers who are using advanced information technology tools and integration of supply chain to enhance customer satisfaction. By outsourcing the logistics operations, companies can focus on their core competencies and other important areas of organization which can’t be outsourced. The analysis of this paper is conducted by discussing different concepts of supply chain integration, customer sati...

  18. Approaches to supply chain logistics integration in the textile/clothing sector: an exploratory study in the Region of Campania

    OpenAIRE

    De Martino, Marcella; Marasco, Alessandra

    2007-01-01

    Given its potential to reduce lead times and total costs of operations, increase delivery speed, responsiveness and flexibility, and ultimately customer satisfaction, supply chain logistics integration can help to improve the competitiveness of the Italian textile and clothing (T/C) firms. However, little research works on supply chain management in general, and few studies on logistics integration in particular have focused their attention on this sector. This paper analyses the approaches t...

  19. Integrated all-polymer Mach-Zehnder interferometers without interaction window in asymmetric configuration

    Science.gov (United States)

    Xiao, Yanfen; Hofmann, Meike; Wang, Ziyu; Sherman, Stanislav; Li, Pei; Zappe, Hans

    2016-02-01

    Integrated Mach-Zehnder interferometers (MZI) based on semiconductors or glasses have been widely used as evanescent field sensors for the monitoring of liquid or gas concentrations. In these systems the upper cladding of the sensing arm is removed partially to form an interaction window by means of subtractive fabrication techniques like etching. The use of polymer materials implicates new options and challenges. Polymers are tunable in terms of refractive index and viscosity offering a great flexibility in design and fabrication in a certain range. They enable a cost-efficient and large-scale roll-to-roll manufacturing of integrated optics on flexible foils as substrate material. The foils can be pre-patterned for example by hot-embossing. Additive steps such as printing a pattern or dispensing a homogeneous layer of liquid monomer material followed by a UV induced polymerization can be used to define the optical structure. However, when a large scale fabrication is required, the reliable production of small lateral structures and thin layers is challenging. Thus the fabrication according to the classical MZI design including an interaction window is difficult so that new design approaches are required. We present here the design and systematic evaluation of MZI sensors without interaction window based on polymer materials. The phase shift at the recombining Y-splitter of the MZI upon a refractive index change of an analyte, which serves as upper cladding of the entire system, is generated by a geometrical asymmetricity of the MZI. The waveguides in the sensing and the reference arm have different width leading to different effective refractive indices and sensitivities. We consider theoretically the expected interference signal and show results from numerical simulations of the whole system using commercial software. The simulations include the material as well as propagation losses and give an overall optimal system length.

  20. Substrate integrated Lead-Carbon hybrid ultracapacitor with flooded, absorbent glass mat and silica-gel electrolyte configurations

    Indian Academy of Sciences (India)

    A Banerjee; M K Ravikumar; A Jalajakshi; P Suresh Kumar; S A Gaffoor; A K Shukla

    2012-07-01

    Lead-Carbon hybrid ultracapacitors (Pb-C HUCs) with flooded, absorbent-glass-mat (AGM) and silica-gel sulphuric acid electrolyte configurations are developed and performance tested. Pb-C HUCs comprise substrate-integrated PbO2 (SI-PbO2) as positive electrodes and high surface-area carbon with graphite-sheet substrate as negative electrodes. The electrode and silica-gel electrolyte materials are characterized by XRD, XPS, SEM, TEM, Rheometry, BET surface area, and FTIR spectroscopy in conjunction with electrochemistry. Electrochemical performance of SI-PbO2 and carbon electrodes is studied using cyclic voltammetry with constant-current charge and discharge techniques by assembling symmetric electrical-double-layer capacitors and hybrid Pb-C HUCs with a dynamic Pb(porous)/PbSO4 reference electrode. The specific capacitance values for 2 V Pb-C HUCs are found to be 166 F/g, 102 F/g and 152 F/g with a faradaic efficiency of 98%, 92% and 88% for flooded, AGM and gel configurations, respectively.

  1. Pectic arabinan side chains are essential for pollen cell wall integrity during pollen development.

    Science.gov (United States)

    Cankar, Katarina; Kortstee, Anne; Toonen, Marcel A J; Wolters-Arts, Mieke; Houbein, Rudolf; Mariani, Celestina; Ulvskov, Peter; Jorgensen, Bodil; Schols, Henk A; Visser, Richard G F; Trindade, Luisa M

    2014-05-01

    Pectin is a complex polysaccharide and an integral part of the primary plant cell wall and middle lamella, contributing to cell wall mechanical strength and cell adhesion. To understand the structure-function relationships of pectin in the cell wall, a set of transgenic potato lines with altered pectin composition was analysed. The expression of genes encoding enzymes involved in pectin acetylation, degradation of the rhamnogalacturonan backbone and type and length of neutral side chains, arabinan and galactan in particular, has been altered. Upon crossing of different transgenic lines, some transgenes were not transmitted to the next generation when these lines were used as a pollen donor, suggesting male sterility. Viability of mature pollen was severely decreased in potato lines with reduced pectic arabinan, but not in lines with altered galactan side chains. Anthers and pollen of different developmental stages were microscopically examined to study the phenotype in more detail. Scanning electron microscopy of flowers showed collapsed pollen grains in mature anthers and in earlier stages cytoplasmic protrusions at the site of the of kin pore, eventually leading to bursting of the pollen grain and leaking of the cytoplasm. This phenomenon is only observed after the microspores are released and the tapetum starts to degenerate. Timing of the phenotype indicates a role for pectic arabinan side chains during remodelling of the cell wall when the pollen grain is maturing and dehydrating.

  2. Space Solar Power Multi-body Dynamics and Controls, Concepts for the Integrated Symmetrical Concentrator Configuration

    Science.gov (United States)

    Glaese, John R.; McDonald, Emmett J.

    2000-01-01

    Orbiting space solar power systems are currently being investigated for possible flight in the time frame of 2015-2020 and later. Such space solar power (SSP) satellites are required to be extremely large in order to make practical the process of collection, conversion to microwave radiation, and reconversion to electrical power at earth stations or at remote locations in space. These large structures are expected to be very flexible presenting unique problems associated with their dynamics and control. The purpose of this project is to apply the expanded TREETOPS multi-body dynamics analysis computer simulation program (with expanded capabilities developed in the previous activity) to investigate the control problems associated with the integrated symmetrical concentrator (ISC) conceptual SSP system. SSP satellites are, as noted, large orbital systems having many bodies (perhaps hundreds) with flexible arrays operating in an orbiting environment where the non-uniform gravitational forces may be the major load producers on the structure so that a high fidelity gravity model is required. The current activity arises from our NRA8-23 SERT proposal. Funding, as a supplemental selection, has been provided by NASA with reduced scope from that originally proposed.

  3. HYDRA: A Middleware-Oriented Integrated Architecture for e-Procurement in Supply Chains

    Science.gov (United States)

    Alor-Hernandez, Giner; Aguilar-Lasserre, Alberto; Juarez-Martinez, Ulises; Posada-Gomez, Ruben; Cortes-Robles, Guillermo; Garcia-Martinez, Mario Alberto; Gomez-Berbis, Juan Miguel; Rodriguez-Gonzalez, Alejandro

    The Service-Oriented Architecture (SOA) development paradigm has emerged to improve the critical issues of creating, modifying and extending solutions for business processes integration, incorporating process automation and automated exchange of information between organizations. Web services technology follows the SOA's principles for developing and deploying applications. Besides, Web services are considered as the platform for SOA, for both intra- and inter-enterprise communication. However, an SOA does not incorporate information about occurring events into business processes, which are the main features of supply chain management. These events and information delivery are addressed in an Event-Driven Architecture (EDA). Taking this into account, we propose a middleware-oriented integrated architecture that offers a brokering service for the procurement of products in a Supply Chain Management (SCM) scenario. As salient contributions, our system provides a hybrid architecture combining features of both SOA and EDA and a set of mechanisms for business processes pattern management, monitoring based on UML sequence diagrams, Web services-based management, event publish/subscription and reliable messaging service.

  4. A representation basis for the quantum integrable spin chain associated with the su(n) algebra

    CERN Document Server

    Hao, Kun; Li, Guang-Liang; Yang, Wen-Li; Shi, Kangjie; Wang, Yupeng

    2016-01-01

    An orthogonal basis of the Hilbert space for the quantum spin chain associated with the su(n) algebra is introduced. Such kind of basis could be treated as a nested generalization of separation of variables (SoV) basis for high-rank quantum integrable models. It is found that each basis vector is in fact an off-shell Bethe state with entries of generators taking values in a fixed set of inhomogeneity parameters $\\{\\theta_j|j=1,\\cdots,N\\}$, and all the monodromy-matrix elements acting on a basis vector take simple forms. This finding allows one to construct similar basis for other high-rank quantum integrable models in the framework of algebraic Bethe Ansatz. As an example of application of such kind of basis, we construct exact eigenstates of the su(3) spin torus (the trigonometric su(3) spin chain with antiperiodic boundary condition) based on its spectrum obtained via off-diagonal Bethe Ansatz (ODBA).

  5. Forecasting return products in an integrated forward/reverse supply chain utilizing an ANFIS

    Directory of Open Access Journals (Sweden)

    Kumar D. Thresh

    2014-09-01

    Full Text Available Interests in Closed-Loop Supply Chain (CLSC issues are growing day by day within the academia, companies, and customers. Many papers discuss profitability or cost reduction impacts of remanufacturing, but a very important point is almost missing. Indeed, there is no guarantee about the amounts of return products even if we know a lot about demands of first products. This uncertainty is due to reasons such as companies’ capabilities in collecting End-of-Life (EOL products, customers’ interests in returning (and current incentives, and other independent collectors. The aim of this paper is to deal with the important gap of the uncertainties of return products. Therefore, we discuss the forecasting method of return products which have their own open-loop supply chain. We develop an integrated two-phase methodology to cope with the closed-loop supply chain design and planning problem. In the first phase, an Adaptive Network Based Fuzzy Inference System (ANFIS is presented to handle the uncertainties of the amounts of return product and to determine the forecasted return rates. In the second phase, and based on the results of the first one, the proposed multi-echelon, multi-product, multi-period, closed-loop supply chain network is optimized. The second-phase optimization is undertaken based on using general exact solvers in order to achieve the global optimum. Finally, the performance of the proposed forecasting method is evaluated in 25 periods using a numerical example, which contains a pattern in the returning of products. The results reveal acceptable performance of the proposed two-phase optimization method. Based on them, such forecasting approaches can be applied to real-case CLSC problems in order to achieve more reliable design and planning of the network

  6. Coordination and Optimization: The Integrated Supply Chain Analysis with Non-Linear Price-Sensitive Demand

    Directory of Open Access Journals (Sweden)

    Mohammed Forhad UDDIN

    2012-01-01

    Full Text Available In this paper, a supply chain with a coordination mechanism consisting of a single vendor and buyeris considered. Further, instead of a price sensitive linear or deterministic demand function, a price-sensitivenon-linear demand function is introduced. To find the inventory cost, penalty cost and transportation cost, it isassumed that the production and shipping functions of the vendor are continuously harmonized and occur at thesame rate. In this integrated supply chain, the Buyer’s Linear Program (LP, vendor’s Integer Program (IP andcoordinated Mixed Integer Program (MIP models are formulated. In this research, numerical example ispresented which includes the sensitivity of the key parameters to illustrate the models. The solution proceduresdemonstrate that the individual profit as well as joint profit could be increased by a coordination mechanismeven though the demand function is non-linear. In addition, the results illustrate that Buyer’s selling price, alongwith the consumers purchasing price, could be decreased, which may increase the demand of the end market.Finally, a conclusion

  7. Fuzzy Goal Programming Approach for Integrating Production and Distribution Problem in Milk Supply Chain

    Directory of Open Access Journals (Sweden)

    Touil Achraf

    2016-01-01

    Full Text Available In this paper, a bi-objective mixed integer programming model is proposed to deal with the production-distribution problem found in a dairy company in Morocco. The supply chain containing three echelons: multi-sites, multi-distribution centers and multi-customers. The model seeks to integrate two conflicting simultaneous objectives: maximizing benefit by considering the shelf life of products and the total cost (quantitative objective, including production, storage, and distribution, as well as maximizing the service level (qualitative objective, which relates to providing satisfactory services to customers. This is subject to several technological constraints that typically arise in the dairy industry, such as sequence-dependent changeover time, machine speed and storage capacity. Due to imprecise aspiration levels of goals, an interactive approach is proposed based on fuzzy goal additive variants to find an efficient compromise solution. Numerical results are reported to demonstrate the efficiency and applicability of the proposed model.

  8. A Micro Polymerase Chain Reaction Module for Integrated and Portable DNA Analysis Systems

    Directory of Open Access Journals (Sweden)

    Elisa Morganti

    2011-01-01

    Full Text Available This work deals with the design, fabrication, and thermal characterization of a disposable miniaturized Polymerase Chain Reaction (PCR module that will be integrated in a portable and fast DNA analysis system. It is composed of two independent parts: a silicon substrate with embedded heater and thermometers and a PDMS (PolyDiMethylSiloxane chamber reactor as disposable element; the contact between the two parts is assured by a mechanical clamping obtained using a Plastic Leaded Chip Carrier (PLCC. This PLCC is also useful, avoid the PCR mix evaporation during the thermal cycles. Finite Element Analysis was used to evaluate the thermal requirements of the device. The thermal behaviour of the device was characterized revealing that the temperature can be controlled with a precision of ±0.5°C. Different concentrations of carbon nanopowder were mixed to the PDMS curing agent in order to increase the PDMS thermal conductivity and so the temperature control accuracy.

  9. Designing a mathematical model for integrating dynamic cellular manufacturing into supply chain system

    Science.gov (United States)

    Aalaei, Amin; Davoudpour, Hamid

    2012-11-01

    This article presents designing a new mathematical model for integrating dynamic cellular manufacturing into supply chain system with an extensive coverage of important manufacturing features consideration of multiple plants location, multi-markets allocation, multi-period planning horizons with demand and part mix variation, machine capacity, and the main constraints are demand of markets satisfaction in each period, machine availability, machine time-capacity, worker assignment, available time of worker, production volume for each plant and the amounts allocated to each market. The aim of the proposed model is to minimize holding and outsourcing costs, inter-cell material handling cost, external transportation cost, procurement & maintenance and overhead cost of machines, setup cost, reconfiguration cost of machines installation and removal, hiring, firing and salary worker costs. Aimed to prove the potential benefits of such a design, presented an example is shown using a proposed model.

  10. Two-echelon competitive integrated supply chain model with price and credit period dependent demand

    Science.gov (United States)

    Pal, Brojeswar; Sankar Sana, Shib; Chaudhuri, Kripasindhu

    2016-04-01

    This study considers a two-echelon competitive supply chain consisting of two rivaling retailers and one common supplier with trade credit policy. The retailers hope that they can enhance their market demand by offering a credit period to the customers and the supplier also offers a credit period to the retailers. We assume that the market demand of the products of one retailer depends not only on their own market price and offering a credit period to the customers, but also on the market price and offering a credit period of the other retailer. The supplier supplies the product with a common wholesale price and offers the same credit period to the retailers. We study the model under a centralised (integrated) case and a decentralised (Vertical Nash) case and compare them numerically. Finally, we investigate the model by the collected numerical data.

  11. Regulation and the Integrity of Spreadsheets in the Information Supply Chain

    CERN Document Server

    Baxter, Ralph

    2008-01-01

    Spreadsheets provide many of the key links between information systems, closing the gap between business needs and the capability of central systems. Recent regulations have brought these vulnerable parts of information supply chains into focus. The risk they present to the organisation depends on the role that they fulfil, with generic differences between their use as modeling tools and as operational applications. Four sections of the Sarbanes-Oxley Act (SOX) are particularly relevant to the use of spreadsheets. Compliance with each of these sections is dependent on maintaining the integrity of those spreadsheets acting as operational applications. This can be achieved manually but at high cost. There are a range of commercially available off-the-shelf solutions that can reduce this cost. These may be divided into those that assist in the debugging of logic and more recently the arrival of solutions that monitor the change and user activity taking place in business-critical spreadsheets. ClusterSeven provid...

  12. A dynamic optimization model of an integrated coal supply chain system and its application

    Institute of Scientific and Technical Information of China (English)

    PENG Hong-jun; ZHOU Mei-hua; LIU Man-zhi; ZHANG Yu; HUANG Yan-bo

    2009-01-01

    Various nodes, logistics, capital flows, and information flows are required to make systematic decisions concerning the operation of an integrated coal supply system. We describe a quantitative analysis of such a system. A dynamic optimization model of the supply chain is developed. It has achieved optimal system profit under conditions guaranteeing a certain level of customer satisfaction. Applying this model to coal production of the Xuzhou coal mines allows recommendations for a more systematic use of washing and processing, transportation and sale resources for commercial co al production to be made. The results show that this model, which is scientific and effective, has an important value for making reasonable decisions related to complex coal enterprises.

  13. Ocean thermal energy conversion (OTEC) platform configuration and integration. Final report. Volume I. Systems requirements and evaluation

    Energy Technology Data Exchange (ETDEWEB)

    None

    1978-06-01

    Studies leading to the development of two 400 MW Offshore Thermal Energy Conversion Commercial Plants are presented. This volume includes a summary of three tasks: task IIA--systems evaluation and requirements; task IIB--evaluation plan; task III--technology review; and task IV--systems integration evaluation. Task IIA includes the definition of top level requirements and an assessment of factors critical to the selection of hull configuration and size, quantification of payload requirements and characteristics, and sensitivity of system characteristics to site selection. Task IIB includes development of a methodology for systematically evaluating the candidate hullforms, based on interrelationships and priorities developed during task IIA. Task III includes the assessment of current technology and identification of deficiencies in relation to OTEC requirements and the development of plans to correct such deficiencies. Task IV involves the formal evaluation of the six candidate hullforms in relation to sit and plant capacity to quantify cost/size/capability relationships, leading to selection of an optimum commercial plant. (WHK)

  14. Role of Third Party Logistics Providers with Advanced it to Increase Customer Satisfaction in Supply Chain Integration

    Directory of Open Access Journals (Sweden)

    Zaryab Sheikh

    2012-01-01

    Full Text Available The main area of change in organizational strategy is the extensive use of third party logistics providers who are using advanced information technology tools and integration of supply chain to enhance customer satisfaction. By outsourcing the logistics operations, companies can focus on their core competencies and other important areas of organization which can’t be outsourced. The analysis of this paper is conducted by discussing different concepts of supply chain integration, customer satisfaction, advanced information technology and third party logistics providers, and their impact on customer satisfaction with theoretical framework. An analytical model is also presented.

  15. Integrated supply chain inventory model with quality improvement involving controllable lead time and backorder price discount

    Directory of Open Access Journals (Sweden)

    Prashant Jindal

    2016-06-01

    Full Text Available For the past four decades the integrated vendor and buyer supply chain inventory model has been an interesting topic, but quality improvement of defective items in the integrated inventory model with backorder price discount involving controllable lead time has been rarely discussed. The aim of this paper is to minimize the total related cost in the continuous review model by considering the order quantity, reorder point, lead time, process quality, backorder price discount and number of shipment as decision variables. Moreover, we assume that an investment function is used to improve the process quality. The lead time demand follows a normal distribution. In addition, the buyer offers backorder price discount to motivate the customers for possible backorders. There are some defective items in the arrival lot, so its treatment is also taken in account in this paper. We develop an iterative procedure for finding the optimal values of decision variables and numerical example is presented to illustrate the solution procedure. Additionally, sensitivity analysis with respect to major parameters is also carried out.

  16. Improving the quality of pork and pork products for the consumer : development of innovative, integrated, and sustainable food production chains of high quality pork products matching consumer demands

    NARCIS (Netherlands)

    Heimann, B.; Christensen, M.; Rosendal Rasmussen, S.; Bonneau, M.; Grunert, K.G.; Arnau, J.; Trienekens, J.H.; Oksbjerg, N.; Greef, de K.H.; Petersen, B.

    2012-01-01

    Improving the quality of pork and pork products for the consumer: development of innovative, integrated, and sustainable food production chains of high quality pork products matching consumer demands.

  17. An Integrated-Empirical Logistics Perspective on Supply Chain Innovation and Firm Performance

    OpenAIRE

    Santanu Mandal

    2015-01-01

    Supply chains need to innovate constantly for maintaining their position in the marketplace and also to fight uncertainties. Hence firms are focusing on strategies for developing supply chain innovation. The current investigation adds to this emerging regime through investigating the influence of logistics capabilities viz. demand management capability, supply management capability, information management capability and coordination capability on supply chain innovation through logistics inte...

  18. Quality in Supply in Project Configured Networks

    DEFF Research Database (Denmark)

    Koch, Christian; Larsen, Casper Schultz

    2006-01-01

    The paper argues that in the AEC-industry the material and knowledge supply chains are increasingly intertwined and moreover characterised by configuration by project. In such a setting creating value for the customers and the enterprises becomes dependent of the ability to organise and coordinat...... collaborative design and quality control in operations....... network. 160 failures were found in 38 working days. The paper discusses quality improvement strategies on strategic and processual level, proposing initiatives, especially at engineer to order production, to strengthen partnerships in supply chains with focus on quality specifications, integrated...

  19. Effect of silicon configurations on the mechanical integrity of silicon-carbon nanotube heterostructured anode for lithium ion battery: A computational study

    Science.gov (United States)

    Damle, Sameer S.; Pal, Siladitya; Kumta, Prashant N.; Maiti, Spandan

    2016-02-01

    Heterostructures of silicon and carbon nanotubes (CNT) have been widely studied as Li-ion battery anodes. The focus of the current study is to investigate the role of silicon configurations on the mechanical integrity of the Si-CNT heterostructured anodes during electrochemical cycling. We hypothesize that void nucleation and growth in silicon during electrochemical cycling of Li can induce fracture and eventual failure. To test this hypothesis, we utilized a custom developed multiphysics finite element modeling framework considering the lithium diffusion induced elasto-plastic deformation of silicon. We systematically varied the silicon component configuration and enumerated the stress field within it for one complete electrochemical cycle. Resulting evolution of stress state reveals that reducing the mechanical constraints on Si reduces the plastic flow of the material, and thus possibility of void nucleation and growth. We find that the Si droplet configuration is mechanically stable while the continuous Si coating configuration is prone to void growth induced mechanical failure. Present analysis provides a mechanistic understanding of the effect of Si configurations in heterostructured electrodes on its mechanical integrity, which can help in design of next-generation hetersostructured electrodes with improved capacity retention.

  20. An unit cost adjusting heuristic algorithm for the integrated planning and scheduling of a two-stage supply chain

    Directory of Open Access Journals (Sweden)

    Jianhua Wang

    2014-10-01

    Full Text Available Purpose: The stable relationship of one-supplier-one-customer is replaced by a dynamic relationship of multi-supplier-multi-customer in current market gradually, and efficient scheduling techniques are important tools of the dynamic supply chain relationship establishing process. This paper studies the optimization of the integrated planning and scheduling problem of a two-stage supply chain with multiple manufacturers and multiple retailers to obtain a minimum supply chain operating cost, whose manufacturers have different production capacities, holding and producing cost rates, transportation costs to retailers.Design/methodology/approach: As a complex task allocation and scheduling problem, this paper sets up an INLP model for it and designs a Unit Cost Adjusting (UCA heuristic algorithm that adjust the suppliers’ supplying quantity according to their unit costs step by step to solve the model.Findings: Relying on the contrasting analysis between the UCA and the Lingo solvers for optimizing many numerical experiments, results show that the INLP model and the UCA algorithm can obtain its near optimal solution of the two-stage supply chain’s planning and scheduling problem within very short CPU time.Research limitations/implications: The proposed UCA heuristic can easily help managers to optimizing the two-stage supply chain scheduling problems which doesn’t include the delivery time and batch of orders. For two-stage supply chains are the most common form of actual commercial relationships, so to make some modification and study on the UCA heuristic should be able to optimize the integrated planning and scheduling problems of a supply chain with more reality constraints.Originality/value: This research proposes an innovative UCA heuristic for optimizing the integrated planning and scheduling problem of two-stage supply chains with the constraints of suppliers’ production capacity and the orders’ delivering time, and has a great

  1. Technological and cross-border mixture value chain of science and engineering of multi-integrative mechatronics-integronics-adaptronics

    Science.gov (United States)

    Gheorghe, Gh. Ion; Popan, Gheorghe

    2013-10-01

    This scientific paper presents in national premiere and in original concept of the author, the scientific national and the author's original concept, the technological and cross-border mixture value chain of science and engineering of multi-integrative Mechatronics-Integronics-Adaptronics, as high-tech vector support development, for viability and sustainability of a new intelligent and competitive labour market.

  2. 学科链、专业链对接产业链办学模式若干问题的探讨%Discussion of Integration of Discipline Chain, Professional Chain and Industrial Chain

    Institute of Scientific and Technical Information of China (English)

    董晓玲

    2012-01-01

    This paper, through an analysis of the connotation of discipline chain, professional chain and industrial chain and the role positioning of local colleges and universities, expounds the necessity of integration of the three chains, analyzes the main problem and causes in the integration and puts forward some effective solutions in order to help higher learning institutions to locate their positions and optimize their role in the process of social and business services.%通过对学科链、专业链、产业链内涵及地方高校角色定位的分析,阐释了三链对接的必要性,进而剖析了目前三链对接中存在的主要问题与原因,从实践中提出一些行之有效的办法,以求高校在为社会、企业的服务过程中找准自己的立足点,发挥最大的作用。

  3. Integrating complexity into data-driven multi-hazard supply chain network strategies

    Science.gov (United States)

    Long, Suzanna K.; Shoberg, Thomas G.; Ramachandran, Varun; Corns, Steven M.; Carlo, Hector J.

    2013-01-01

    Major strategies in the wake of a large-scale disaster have focused on short-term emergency response solutions. Few consider medium-to-long-term restoration strategies that reconnect urban areas to the national supply chain networks (SCN) and their supporting infrastructure. To re-establish this connectivity, the relationships within the SCN must be defined and formulated as a model of a complex adaptive system (CAS). A CAS model is a representation of a system that consists of large numbers of inter-connections, demonstrates non-linear behaviors and emergent properties, and responds to stimulus from its environment. CAS modeling is an effective method of managing complexities associated with SCN restoration after large-scale disasters. In order to populate the data space large data sets are required. Currently access to these data is hampered by proprietary restrictions. The aim of this paper is to identify the data required to build a SCN restoration model, look at the inherent problems associated with these data, and understand the complexity that arises due to integration of these data.

  4. Integrability and soliton in a classical one dimensional site dependent biquadratic Heisenberg spin chain and the effect of nonlinear inhomogeneity

    International Nuclear Information System (INIS)

    The integrability of one dimensional classical continuum inhomogeneous biquadratic Heisenberg spin chain and the effect of nonlinear inhomogeneity on the soliton of an underlying completely integrable spin model are studied. The dynamics of the spin system is expressed in terms of a higher order generalized nonlinear Schroedinger equation through a differential geometric approach which becomes integrable for a particular choice of the biquadratic exchange interaction and for linear inhomogeneity. The effect of nonlinear inhomogeneity on the spin soliton is studied by carrying out a multiple scale perturbation analysis. (author)

  5. INTEGRATION IN THE CHAIN: A CASE STUDY ON THE COLLABORATION IN THE CHAIN OF A RESALE COMPANY OF PARTS FOR INDUSTRIAL EQUIPMENT

    Directory of Open Access Journals (Sweden)

    Inês Shinobu Chubachi

    2016-07-01

    Full Text Available The increasing market competition makes companies seek better results, through partnerships with suppliers, and it isnecessary to analyze and adapt to the requirements of customers and market. Thus, for the realization of this article, it is based on concepts of Logistics according to supply chain, intending to analyze operational processes and suggest improvements in results and competitive gains for collaboration in the chain of trade in pieces of industrial equipment company in the Greater São Paulo region. Therefore, we conducted literature searches through books and articles, as well as a case study, which in general, revealed that the supply chain of the studied company has great potential for improvement it once has modest integration actions compared to a model with a strategic focus and some deviations compared to the academic literature. Research results have shown issues such as ignorance of the subject proposed by the employees as well as the need to create alternatives to maximize the interaction between the sectors within the organization contributing more competitive solutions in addition to providing agility in the process as a whole. To carry out further research, it is recommended further study regarding the implementation of management information systems to improve some processes and, consequently, the outcome of that organization.

  6. Impact of Integration of Manufacturaing Planning and Control Systems on Supply Chain Management

    OpenAIRE

    Kawai, Ayako; Sato, Ryo

    2009-01-01

    Manufacturing planning and control systems (MPCSs, for short) are an essentialelement for supply chain processes today. However, there are few researches whichinclude planning information systems in supply chain models and optimize the wholestructure holistically in spite of the social importance of MPCSs for supply chainmanagement. At present, we do not have any ideas even about process behaviorwhen organizations which have MPCSs are linked in a supply chain. To clarifyfundamental properties...

  7. Simulation modelling for food supply chain redesign; Integrated decision making on product quality, sustainability and logistics

    OpenAIRE

    Jack G.A.J. van der Vorst; Tromp, Seth; Van Der Zee, Durk-Jouke

    2009-01-01

    Abstract Food supply chains are confronted with increased consumer demands on food quality and sustainability. When redesigning these chains the analysis of food quality change and environmental load of new scenarios is as important as the analysis of efficiency and responsiveness requirements. Simulation tools are often used for supporting decision-making on supply chain (re)design when logistic uncertainties are in place, building on their inherent modelling flexibility. Mostly, ...

  8. Value chain envy : explaining new entry and vertical integration in popular music

    NARCIS (Netherlands)

    Mol, Joeri M.; Wijnberg, Nachoem M.

    2002-01-01

    The desirability of establishing a value chain at a particular stage in a value system can be considered to depend on the relation between the value that can be created and the value that can be captured at that particular stage. Value chain envy motivates firms to invade the more desirable stages o

  9. Simulation modelling for food supply chain redesign; integrated decision making on product quality, sustainability and logistics

    NARCIS (Netherlands)

    Vorst, van der J.G.A.J.; Tromp, S.O.; Zee, van der D.J.

    2009-01-01

    Food supply chains are confronted with increased consumer demands on food quality and sustainability. When redesigning these chains the analysis of food quality change and environmental load of new scenarios is as important as the analysis of efficiency and responsiveness requirements. Simulation to

  10. Integrated Development and Maintenance of Software Products to Support Efficient Updating of Customer Configurations: A Case Study in Mass Market ERP Software

    OpenAIRE

    Jansen, S.R.L.; Brinkkemper, S.; Ballintijn, G.; Nieuwland, Arco van

    2008-01-01

    The maintenance of enterprise application software at a customer site is a potentially complex task for software vendors. This complexity can unfortunately result in a significant amount of work and risk. This paper presents a case study of a product software vendor that tries to reduce this complexity by integrating product data management (PDM), software configuration management (SCM), and customer relationship management (CRM) into one system. The case study shows that by combining these m...

  11. Supply Chain Integration and Logistics Management among BRICS: A Literature Review

    Directory of Open Access Journals (Sweden)

    Pravendra Tyagi

    2016-08-01

    Full Text Available Supply chain management encompasses the routing and scheduling of inventory maneuver to desired allocation in an economic mode for satisfying the all end-users by prompt connectivity and communication between the links of supply chain. In this article efforts have been made to explore the series of challenges in BRICS countries in supply chain connectivity to achieve the revolution of coined word, which is “Broad vision and shared prosperity, also security and prosperity” this paper exposes the impacting key constraints on economic and smooth supply chain execution country wise, specifically Brazil, Russia, India, China, South Africa, also discusses the approaches to overcome the loose poles in supply chain system by enhancing internationalization and globalization ,which relates to quantitative and qualitative strengthening in the field of finance and technology

  12. Integration of Green Practices in Supply Chain Environment The practices of Inbound, Operational, Outbound and Reverse logistics

    Directory of Open Access Journals (Sweden)

    MANISH CHOUDHARY,

    2011-06-01

    Full Text Available The present decade is fully conscious about the environmental problems and green products for sustainable development and the recent agenda of Indian Industries facing the environmental problems. The intense pressure from government regulatory acts to implement and become the industries Environment Sustainable (ES. Green Supply Chain Management (GSCM has emerged as a key approach for automobile manufacturing industries seeking to become Environmentally Sustainable (ES. There is a growing need to integrate GSCM into Inbound, Operational and Outbound supply chain. This study reviewed various literatures on Supplier (Inbound, Organizational (Operational, Distributional (Outbound and Reverse logistics (RL of Green Supply chain management. This paper propose concise framework for forward direction GSCM (FGSCM and reverse direction GSCM (RGSCM.

  13. TWRS Configuration management program plan

    Energy Technology Data Exchange (ETDEWEB)

    Vann, J.M.

    1996-06-03

    The TWRS Configuration Management Program Plan (CMPP) integrates technical and administrative controls to establish and maintain consistency among requirements, product configuration, and product information for TWRS products during all life cycle phases. This CMPP will be used by TWRS management and configuration management personnel to establish and manage the technical and integrated baselines and controls and status changes to those baselines.

  14. Configuration Management Automation (CMA)

    Data.gov (United States)

    Department of Transportation — Configuration Management Automation (CMA) will provide an automated, integrated enterprise solution to support CM of FAA NAS and Non-NAS assets and investments. CMA...

  15. Integration of Six Sigma and ISM to improve Supply Chain Coordination – A conceptual framework

    Directory of Open Access Journals (Sweden)

    Pratima Mishra

    2015-01-01

    Full Text Available To achieve competitiveness and to improve supply chain performance, supply chain coordination (SCC is considered as a key challenge by the companies to satisfy their customers. In today’s turbulent economic environment, SCC is a topic of great significance among business houses because SCC creates understanding, molds human behavior and improve competitiveness.  As observed from literature that the dynamics of global market has resulted in serious pressure and distraction to activities of various supply chain entities i.e. suppliers, manufacturer, distributors, wholesaler, retailers and customers, which ultimately affects the SC performance. Thus, supply chains are exposed to risks due to uncertain and turbulent economic environment. To overcome these challenges, authors in this study developed a conceptual framework for knowledge management based on Six Sigma and ISM which can be used to study various supply chain dimensions be it human, process or quality dimensions. The main advantage of this framework is that it not only helps to understand information regarding the strength and weaknesses of various supply chain entities in a supply chain but also helps to determine the structural relationship among key dimensions of interest. The proposed framework can be applied by industries to model and analyze their processes effectively, compare their performance both within and outside their industry segment and thus improve competitiveness by following knowledge management practices.

  16. Farmers, Markets and Contracts: Chain Integration of Smallholder Producers in Costa Rica

    Directory of Open Access Journals (Sweden)

    Ruerd Ruben

    2008-10-01

    Full Text Available Contract farming is frequently considered as an appropriate mechanism for integrating smallholders into dynamic markets. We discuss the rationale for the variety in contractual arrangements between small-scale producers and agro-processing firms in the Northern and Central region of Costa Rica. Different market configurations give rise to delivery conditions, ranging from spot market negotiations to verbal or written contracts. We analyse which types of farmers are typically engaged in each of these contractual arrangements, and what are the implications for their production and investment decisions. Main attention is given to the effects of institutional organization for equity, efficiency and sustainability. The analysis is based on detailed case studies for two non-traditional commodities (pepper and chayote. Results suggest that contracts provide an important insurance device for farmers meeting investment and information constraints, and offer incentive for more intensive input use. This suggests that contract farming may be a critical requirement enabling smallholders to enter into specialized markets.Resumen: Campesinos, mercados y contratos: La integración al mercado de los pequeños productores de Costa RicaFrecuentemente se considera a la agricultura de contrato como un mecanismo apropiado para fomentar la integración campesina en mercados dinámicos. Discutimos los fundamentos que explican la gran variedad en arreglos contractuales entre pequeños productores y empresas agroindustriales en la zona Norte y Central de Costa Rica. Diferentes configuraciones mercantiles inducen condiciones de suministro que varían entre negociaciones en el mercado mismo hasta contratos verbales y escritos. Aquí analizamos qué tipo de productores se relacionan normalmente en cada uno de estos arreglos contractuales, y cuáles son las implicaciones para sus decisiones de producción e inversión. Prestamos especial atención a los efectos de la

  17. 基于Assur机构构成模式的非零开式运动链的构型%Configuration of Non-zero Open Kinematic Chain based on Assur Group

    Institute of Scientific and Technical Information of China (English)

    李佳; 孔建益; 廖汉元; 侯宇

    2013-01-01

    提出了一种n杆非零开式运动链的构型方法,研究变胞机构的组成原理.将机构的构建理解为,将自由度大于零的非零开式链连接到机架和原动件上而构成机构,机构的自由度为该非零开式链的自由度与原动件数之和.推导出了F=1的运动链36种;F=2的运动链57种.这些运动链与主动件和机架相连可分别构成F=2、F=3的机构,将为变胞机构的型综合提供依据.%The method of configuration for non - zero open kinematic chain with n - links is introduced, construction theory of metamorphic mechanism is studied. The construction of mechanism could be considered as such process that mechanism will be constructed by means of connecting non - zero open kinematic chain which is of more than zero degree of freedom with rack and driving link. The degree of freedom of non - zero open kinematic chain plus the numbers of driving link is equal to the degree of freedom for this mechanism, 36 types of kinematic chain are studied in case of F = 1,57 types of kinematic chain are studied in case of F=2, some mechanisms with F = 2 or F = 3 could be constructed by means of connecting these kinematic chains with driving link and rack, the theory will be useful for type synthesis of metamorphic mechanism.

  18. Superlattice configurations in linear chain hydrocarbon binary mixtures - Case of -C28H58: -CH2+2 ( = 10, 12, 14, 16)

    Indian Academy of Sciences (India)

    P B V Prasad; P B Shashikanth; P Neelima

    2005-01-01

    Powder XRD data of mixtures of title compounds are interpreted in terms of superlattices (SL). It is suggested that SL configurations (orthorhombic-orthorhombic, orthorhombic-monoclinic, monoclinic-monoclinic) are realizable, because of discrete orientational changes in the alignment of molecules of -C28H58 hydrocarbon, through an angle , where = 1, 2, 3 $\\ldots$ and angle has an average value of 3.3°. Supporting literature evidence on the inclinations are discussed.

  19. Integration of Six Sigma and ISM to improve Supply Chain Coordination – A conceptual framework

    OpenAIRE

    Pratima Mishra; Rajiv Kumar Sharma

    2015-01-01

    To achieve competitiveness and to improve supply chain performance, supply chain coordination (SCC) is considered as a key challenge by the companies to satisfy their customers. In today’s turbulent economic environment, SCC is a topic of great significance among business houses because SCC creates understanding, molds human behavior and improve competitiveness.  As observed from literature that the dynamics of global market has resulted in serious pressure and distraction to activities of va...

  20. Integrating Sustainability into the Supply Chain: the Analysis of the Approach of a Sportswear Company Speedo

    OpenAIRE

    Baeva, Natalia

    2011-01-01

    Supply chain performance is one of the critical factors for companies in the process of achievement of long-term successful sustainable development and competitive advantage. As many companies from developed countries outsourced the manufacturing of their products to the developing countries, the control over the supply chain has become more complicated. The existence of risks in the market and non-market environment makes the global companies become careful about the socially responsible beh...

  1. A new Integration Model to Evaluate Strategic Performance of Supply Chain

    Directory of Open Access Journals (Sweden)

    Gholamreza Gholampour

    2014-12-01

    Full Text Available Nowadays, Supply Chain Management (SCM is one of the most important and complex issues for automakers in the world. The main objectives of this research were to investigate the factors that predict strategic performance of supply chain by doing quantitative research at Iran Khodro Company (IKCO in Iran. Based on supply chain theories, strategic performance of supply chain was predicted by Information Technology (IT, Organizational Learning (OL, and Product Innovation (PRI in our research at the first time in an automotive company. Stratified random sampling was used to determine the sample size. Accordingly, 250 questionnaires were distributed among experts and supply chain specialists at IKCO. According to Supplying Automotive Parts Company (SPSC variable as the main dependent variable, Path Analysis (PA technique was used to explore casual relationships among variables using multiple regression analysis in SPSS. The Confirmatory Factor Analysis (CFA was utilized based on Maximum Likelihood (ML analysis of normality, outliers, composite reliability, and validity to test hypotheses by using AMOS. PA, measurement model, and structural model were analyzed in order to examine the conceptual model. The results from multiple regression, path analysis, and Structural Equation Modeling (SEM were same. Thus, all hypotheses were supported by SPSS and SEM analyses. The findings of the study are discussed in detail.

  2. Symplectic integration of closed chain rigid body dynamics with internal coordinate equations of motion

    Science.gov (United States)

    Mazur, Alexey K.

    1999-07-01

    Internal coordinate molecular dynamics (ICMD) is a recent efficient method for modeling polymer molecules which treats them as chains of rigid bodies rather than ensembles of point particles as in Cartesian MD. Unfortunately, it is readily applicable only to linear or tree topologies without closed flexible loops. Important examples violating this condition are sugar rings of nucleic acids, proline residues in proteins, and also disulfide bridges. This paper presents the first complete numerical solution of the chain closure problem within the context of ICMD. The method combines natural implicit fixation of bond lengths and bond angles by the choice of internal coordinates with explicit constraints similar to Cartesian dynamics used to maintain the chain closure. It is affordable for large molecules and makes possible 3-5 times faster dynamics simulations of molecular systems with flexible rings, including important biological objects like nucleic acids and disulfide-bonded proteins.

  3. Presenting a Bi-objective Integrated Model for Production-Distribution Problem in a Multi-level Supply Chain Network

    Directory of Open Access Journals (Sweden)

    Abolfazl Kazemi

    2015-02-01

    Full Text Available In this study, a bi-objective model for integrated planning of production-distribution in a multi-level supply chain network with multiple product types and multi time periods is presented. The supply chain network including manufacturers, distribution centers, retailers and final customers is proposed. The proposed model minimizes the total supply chain costs and transforming time of products for customers in the chain. The proposed model is in the class of linear integer programming problems. The complexity of the problem is large and in the literatur, this problem has been shown to be NP-hard. Therefore, for solving this problem, two multi objective meta-heuristic approaches based on Pareto method including non-dominated Sorting Genetic Algorithm-II (NSGA-II and non-dominated Ranking Genetic Algorithm (NRGA have been suggested. Since the output of meta- heuristic algorithms are highly dependent on the input parameters of the algorithm, Taguchi method (Taguchi is used to tune the parameters. Finally, in order to evaluate the performance of the proposed solution methods, different test problems with different dimensions have been produced and the performances of the proposed algorithms on the test problems have been analyzed.

  4. Integrable Spin Chains with U(1)^3 symmetry and generalized Lunin-Maldacena backgrounds

    OpenAIRE

    Freyhult, L.; Kristjansen, C.; Mansson, T.

    2005-01-01

    We consider the most general three-state spin chain with U(1)^3 symmetry and nearest neighbour interaction. Our model contains as a special case the spin chain describing the holomorphic three scalar sector of the three parameter complex deformation of N=4 SYM, dual to type IIB string theory in the generalized Lunin-Maldacena backgrounds discovered by Frolov. We formulate the coordinate space Bethe ansatz, calculate the S-matrix and determine for which choices of parameters the S-matrix fulfi...

  5. Numerical methods for finding periodic points in discrete maps. High order islands chains and noble barriers in a toroidal magnetic configuration

    Energy Technology Data Exchange (ETDEWEB)

    Steinbrecher, G. [Association Euratom-Nasti Romania, Dept. of Theoretical Physics, Physics Faculty, University of Craiova (Romania); Reuss, J.D.; Misguich, J.H. [Association Euratom-CEA Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee

    2001-11-01

    We first remind usual physical and mathematical concepts involved in the dynamics of Hamiltonian systems, and namely in chaotic systems described by discrete 2D maps (representing the intersection points of toroidal magnetic lines in a poloidal plane in situations of incomplete magnetic chaos in Tokamaks). Finding the periodic points characterizing chains of magnetic islands is an essential step not only to determine the skeleton of the phase space picture, but also to determine the flux of magnetic lines across semi-permeable barriers like Cantori. We discuss here several computational methods used to determine periodic points in N dimensions, which amounts to solve a set of N nonlinear coupled equations: Newton method, minimization techniques, Laplace or steepest descend method, conjugated direction method and Fletcher-Reeves method. We have succeeded to improve this last method in an important way, without modifying its useful double-exponential convergence. This improved method has been tested and applied to finding periodic points of high order m in the 2D 'Tokamap' mapping, for values of m along rational chains of winding number n/m converging towards a noble value where a Cantorus exists. Such precise positions of periodic points have been used in the calculation of the flux across this Cantorus. (authors)

  6. QChain - integrating social, environmental and economic value: a tool to support innovation in production chains

    NARCIS (Netherlands)

    Kassahun, A.; Chatenier, du E.; Bots, P.W.G.; Hofstede, Gert Jan; Bloemhof, J.M.; Scholten, H.; Korver, S.; Beulens, A.J.M.

    2011-01-01

    Today's consumers increasingly demand products that are produced sustainably and ethically. As a result, businesses need to address sustainability and social responsibility issues and find a proper balance between people, planet and profit (PPP) aspects of their production chains. Software tools can

  7. Bethe States of the integrable spin-s chain with generic open boundaries

    CERN Document Server

    Yang, Lijun; Cao, Junpeng; Yang, Wen-Li; Shi, Kangjie; Wang, Yupeng

    2015-01-01

    Based on the inhomogeneous T-Q relation and the associated Bethe Ansatz equations obtained via the off-diagonal Bethe Ansatz, we construct the Bethe-type eigenstates of the SU(2)-invariant spin-s chain with generic non-diagonal boundaries by employing certain orthogonal basis of the Hilbert space.

  8. Integration of logistic regression, Markov chain and cellular automata models to simulate urban expansion

    NARCIS (Netherlands)

    Jokar Arsanjani, J.; Helbich, M.; Kainz, W.; Boloorani, A.

    2013-01-01

    This research analyses the suburban expansion in the metropolitan area of Tehran, Iran. A hybrid model consisting of logistic regression model, Markov chain (MC), and cellular automata (CA) was designed to improve the performance of the standard logistic regression model. Environmental and socio-eco

  9. Integrating ecosystem services into the tropical commodity value chain : cocoa, soy and palm oil

    NARCIS (Netherlands)

    Berg, van den J.; Ingram, V.J.; Judge, L.O.; Arets, E.J.M.M.

    2014-01-01

    This technical report explores the governance options available to the Dutch government to promote the sustainable use and maintenance of ecosystem services in tropical commodity value chains with Dutch links. It examines how ecosystem services can be given a more explicit role in public and market

  10. Integration of capacity, pricing, and lead-time decisions in a decentralized supply chain

    NARCIS (Netherlands)

    Zhu, Stuart X.

    2015-01-01

    We consider a decentralized supply chain consisting of a supplier and a retailer facing price- and lead-time-sensitive demand. The decision process is modelled by a Stackelberg game where the supplier, as a leader, determines the capacity and the wholesale price, and the retailer, as a follower, det

  11. Integrating Poverty and Environmental Concerns into Value-Chain Analysis: A Strategic Framework and Practical Guide

    DEFF Research Database (Denmark)

    Riisgaard, Lone; Bolwig, Simon; Ponte, Stefano;

    2010-01-01

    This article aims to guide the design and implementation of action-research projects in value-chain analysis by presenting a strategic framework focused on small producers and trading and processing firms in developing countries. Its stepwise approach – building on the conceptual framework set out...

  12. Robust food supply supply chains : an integrated framework for vulnerability assessment and disturbance management

    NARCIS (Netherlands)

    Vlajic, J.V.

    2012-01-01

    The operation of supply chains (SCs) has for many years been focused on efficiency, leanness and responsiveness. This has resulted in reduced slack in operations, compressed cycle times, increased productivity and minimised inventory levels along the SC. Combined with tight tolerance settings for th

  13. Handling Disruptions in Supply Chains: An Integrated Framework and an Agent-based Model

    NARCIS (Netherlands)

    Behdani, B.

    2013-01-01

    The degree of supply chain risk faced by many companies has risen dramatically and the impact of disruptions can cascade easily across companies’ and countries’ borders. To handle this increased vulnerability, systematic approaches and decision making tools are needed to provide support in managing

  14. Bridging the Operational Divide: An Information-Processing Model of Internal Supply Chain Integration

    Science.gov (United States)

    Rosado Feger, Ana L.

    2009-01-01

    Supply Chain Management, the coordination of upstream and downstream flows of product, services, finances, and information from a source to a customer, has risen in prominence over the past fifteen years. The delivery of a product to the consumer is a complex process requiring action from several independent entities. An individual firm consists…

  15. Supporting smallholder commercialisation by enhancing integrated coordination in agrifood value chains

    NARCIS (Netherlands)

    Kilelu, Catherine; Klerkx, Laurens; Leeuwis, Cees

    2016-01-01

    Recent literature suggests that to make value chains in changing agrifood systems in sub-Saharan Africa more inclusive, intermediary institutions should foster coordination. The hub concept has been applied as such an intermediary institution that coordinates advisory services, input supply and s

  16. Double path integral method for obtaining the mobility of the one-dimensional charge transport in molecular chain.

    Science.gov (United States)

    Yoo-Kong, Sikarin; Liewrian, Watchara

    2015-12-01

    We report on a theoretical investigation concerning the polaronic effect on the transport properties of a charge carrier in a one-dimensional molecular chain. Our technique is based on the Feynman's path integral approach. Analytical expressions for the frequency-dependent mobility and effective mass of the carrier are obtained as functions of electron-phonon coupling. The result exhibits the crossover from a nearly free particle to a heavily trapped particle. We find that the mobility depends on temperature and decreases exponentially with increasing temperature at low temperature. It exhibits large polaronic-like behaviour in the case of weak electron-phonon coupling. These results agree with the phase transition (A.S. Mishchenko et al., Phys. Rev. Lett. 114, 146401 (2015)) of transport phenomena related to polaron motion in the molecular chain. PMID:26701710

  17. An integrated one-chip-sensor system for microRNA quantitative analysis based on digital droplet polymerase chain reaction

    Science.gov (United States)

    Tsukuda, Masahiko; Wiederkehr, Rodrigo Sergio; Cai, Qing; Majeed, Bivragh; Fiorini, Paolo; Stakenborg, Tim; Matsuno, Toshinobu

    2016-04-01

    A silicon microfluidic chip was developed for microRNA (miRNA) quantitative analysis. It performs sequentially reverse transcription and polymerase chain reaction in a digital droplet format. Individual processes take place on different cavities, and reagent and sample mixing is carried out on a chip, prior to entering each compartment. The droplets are generated on a T-junction channel before the polymerase chain reaction step. Also, a miniaturized fluorescence detector was developed, based on an optical pick-up head of digital versatile disc (DVD) and a micro-photomultiplier tube. The chip integrated in the detection system was tested using synthetic miRNA with known concentrations, ranging from 300 to 3,000 templates/µL. Results proved the functionality of the system.

  18. An Integrated Structure for Supplier Selection and Configuration of Knowledge-Based Networks Using QFD, ANP, and Mixed-Integer Programming Model

    Directory of Open Access Journals (Sweden)

    M. Abbasi

    2013-01-01

    Full Text Available Today’s competitive world conditions and shortened product life cycles have led to the rise of attention towards new product development issue which can guarantee both growth and survival of organizations. The agility of new product development is directed by the efficiency and efficacy of knowledge management skills of an organization. A key issue in thorough success of such networks is the developed knowledge preservation amongst the members. Thus, it is important that reliable relations can be established between the members in order to promote further interactions. To do so, an integrated framework is developed in this paper to configure the new product development network so that sustainable collaborations can be maintained amongst the entities. The proposed framework consists of the network configuration in addition to the supplier selection phase. They are taken into consideration using a biobjective mathematical model in which incurred costs and suppliers' superiority determine the final configuration of the network. Finally, different numerical instances are solved to address the applicability of the proposed model.

  19. Interplant coordination, supply chain integration, and operational performance of a plant in a manufacturing network: A mediation analysis

    DEFF Research Database (Denmark)

    Yang, Cheng; Chaudhuri, Atanu; Farooq, Sami

    2016-01-01

    Purpose The objective of this paper is to investigate the relationships at the level of plant in a manufacturing network, labelled as networked plant in the paper, between (1) inter-plant coordination and operational performance, (2) supply chain integration (SCI) and operational performance, and...... of SCI on the operational performance by selecting networked plant as a unit of analysis. Besides, this paper distinguishes inter-plant coordination from SCI and investigates the relationship between SCI and inter-plant coordination for the first time....

  20. An integrated supply chain model for deteriorating items considering delay in payments, imperfect quality and inspection errors under inflationary conditions

    DEFF Research Database (Denmark)

    Mahmoudinezhad, Mahvash; Mirzazadeh, Abolfazl; Ghoreishi, Maryam

    2016-01-01

    In this article, an integrated production–distribution model is presented for a manufacturer and retailer supply chain under inflationary conditions, permissible delay in payments, deterioration, imperfect production process and inspection errors. We assume that the first-stage inspection...... is conducted without inspection errors, and the screening process and demand proceed simultaneously. The main objective is to determine the optimal inspection time and the optimal number of cycle such that the present value of the total cost is minimized. Finally, a numerical example and sensitivity analyses...

  1. Multi-bucket optimization for integrated planning and scheduling in the perishable dairy supply chain

    NARCIS (Netherlands)

    Sel, C.; Bilgen, B.; Bloemhof, J.M.; Vorst, van der J.G.A.J.

    2015-01-01

    This paper considers a dairy industry problem on integrated planning and scheduling of set yoghurt production. A mixed integer linear programming formulation is introduced to integrate tactical and operational decisions and a heuristic approach is proposed to decompose time buckets of the decisions.

  2. Baxter operators and Hamiltonians for “nearly all” integrable closed gl(n) spin chains

    International Nuclear Information System (INIS)

    We continue our systematic construction of Baxter Q-operators for spin chains, which is based on certain degenerate solutions of the Yang–Baxter equation. Here we generalize our approach from the fundamental representation of gl(n) to generic finite-dimensional representations in quantum space. The results equally apply to non-compact representations of highest or lowest weight type. We furthermore fill an apparent gap in the literature, and provide the nearest-neighbor Hamiltonians of the spin chains in question for all cases where the gl(n) representations are described by rectangular Young diagrams, as well as for their infinite-dimensional generalizations. They take the form of digamma functions depending on operator-valued shifted weights

  3. Improving food safety in the supply chain: Integrating traceability in production and distribution planning

    DEFF Research Database (Denmark)

    Grunow, Martin; Rong, Aiying; Akkerman, Renzo

    2008-01-01

    on production and distribution planning. Here, we develop a methodology for production and distribution planning in food supply chains which minimizes production and logistics costs and at the same time reduces food safety concerns, limits the size of potential recalls, and satisfies product quality......After a number of food safety crises, the design and implementation of traceability systems became an important focus of the food industry. As a result, food product traceability ranks high on senior management agendas for supply chain activities. In the literature, numerous studies deal...... with traceability from the viewpoint of information system development and technology development such as radio frequency identification (RFID) and DNA-based techniques. However, traceability and its implications for food safety are thus far not incorporated in the standard operations management literature...

  4. Pectic arabinan side chains are essential for pollen cell wall integrity during pollen development

    DEFF Research Database (Denmark)

    Cankar, Katarina; Kortstee, Anne; Toonen, Marcel A.J.;

    2014-01-01

    transgenes were not transmitted to the next generation when these lines were used as a pollen donor, suggesting male sterility. Viability of mature pollen was severely decreased in potato lines with reduced pectic arabinan, but not in lines with altered galactan side chains. Anthers and pollen of different...... developmental stages were microscopically examined to study the phenotype in more detail. Scanning electron microscopy of flowers showed collapsed pollen grains in mature anthers and in earlier stages cytoplasmic protrusions at the site of the of kin pore, eventually leading to bursting of the pollen grain...... and leaking of the cytoplasm. This phenomenon is only observed after the microspores are released and the tapetum starts to degenerate. Timing of the phenotype indicates a role for pectic arabinan side chains during remodelling of the cell wall when the pollen grain is maturing and dehydrating....

  5. Business Process Modelling Languages in Designing Integrated Information System for Supply Chain Management

    OpenAIRE

    Mohsen Mohammadi; Muriati Mukhtar

    2012-01-01

    A business process model is very germane to the formation of an appropriate information system. For a marked infusion of business processes in the supply chain, the status quo regarding the processes must be totally understood and well secured. Business activities and sequence have to be well kept and properly coordinated by predicting business procedures process from diverse views. This study examines seven BPMLs Data Flow Diagram (DFD), Unified Modelling Language (UML), Business Process Mod...

  6. Decision aid tool and design approach for plastic recycling chain integration in the automotive industry

    OpenAIRE

    MAUDET-CHARBUILLET, Carole; Bertoluci, Gwenola

    2007-01-01

    The many uses of plastics in our society are now compromised because of the social and environmental impacts they generate: exhaustion of petroleum resources, waste management... Plastics recycling appears to be one of the best ways to solve these problems. But Plastics Recycling Chains (PRC) are still emerging system. The automotive industry is directly concerned by plastic recycling through the End of Life Vehicles (ELV) directive which compels it to respect recycling rate for their product...

  7. RFID-integrated plastic pallets in the grocery industry : Contribution to supply chain efficiency

    OpenAIRE

    Gundersen, Eivind Arne; Eriksen, Nils Olaf

    2012-01-01

    Problem – Companies and supply chains, such as those in the grocery industry, continuously face stricter requirements in the form of customer satisfaction, quality, profit margins, as well as information sharing in order to stay competitive. One specific technology that may be used in dealing with increasing competitive demands is the radio frequency identification (RFID) technology. A wide body of research recognizes the positive impacts from RFID, yet even so, doubts and uncertainty have be...

  8. Robust food supply supply chains : an integrated framework for vulnerability assessment and disturbance management

    OpenAIRE

    Vlajic, J.V.

    2012-01-01

    The operation of supply chains (SCs) has for many years been focused on efficiency, leanness and responsiveness. This has resulted in reduced slack in operations, compressed cycle times, increased productivity and minimised inventory levels along the SC. Combined with tight tolerance settings for the realisation of logistics and production processes, this has led to SC performances that are frequently not robust. SCs are becoming increasingly vulnerable to disturbances, which can decrease the...

  9. Advances in integrated and sustainable supply chain planning concepts, methods, tools and solution approaches toward a platform for industrial practice

    CERN Document Server

    Laínez-Aguirre, José Miguel

    2015-01-01

    Decision making at the enterprise level often encompass not only production operations and  product R&D, but other strategic functions such as financial planning and marketing. With the aim of maximizing growth and a firm’s value, companies often focus on co-ordinating these functional components as well as traditional hierarchical decision levels. Understanding this interplay can enhance enterprise capabilities of adaptation and response to uncertainties arising from internal processes as well as the external environment. This book presents concepts, methods, tools and solutions based on mathematical programming, which provides the quantitative support needed for integrated decision-making and ultimately for improving the allocation of overall corporate resources (e.g., materials, cash and personnel). Through a systems perspective, the integrated planning of the supply chain also promotes activities of reuse, reduction and recycling for achieving more sustainable environmental impacts of production/di...

  10. Prevalence and characterization of Salmonella species in entire steps of a single integrated broiler supply chain in Korea.

    Science.gov (United States)

    Choi, Soo-Won; Ha, Jong-Su; Kim, Byoung-Yoon; Lee, Dong-Hun; Park, Jae-Keun; Youn, Ha-Na; Hong, Young-Ho; Lee, Sang-Bae; Lee, Joong-Bok; Park, Seung-Yong; Choi, In-Soo; Song, Chang-Seon

    2014-05-01

    The purpose of this study was to investigate the distribution of Salmonella species in an integrated broiler supply chain in Korea. A total of 1,214 samples from various steps of an integrated broiler production company including broiler breeder farms, broiler farms, broiler trucks, slaughterhouse, and retail chicken meats were collected and investigated. Salmonella was detected in 195 of the samples. The highest prevalence of Salmonella was observed in broiler transporting trucks (71.43%), followed by the slaughterhouse (63.89%) and broiler farms (16.05%). Salmonella Hadar was the most frequently isolated serotype (83.08%). All Salmonella Hadar isolates investigated in this study with pulsed-field gel electrophoresis showed the same XbaI pulsed-field gel electrophoresis pulsotype.

  11. Prevalence and characterization of Salmonella species in entire steps of a single integrated broiler supply chain in Korea.

    Science.gov (United States)

    Choi, Soo-Won; Ha, Jong-Su; Kim, Byoung-Yoon; Lee, Dong-Hun; Park, Jae-Keun; Youn, Ha-Na; Hong, Young-Ho; Lee, Sang-Bae; Lee, Joong-Bok; Park, Seung-Yong; Choi, In-Soo; Song, Chang-Seon

    2014-05-01

    The purpose of this study was to investigate the distribution of Salmonella species in an integrated broiler supply chain in Korea. A total of 1,214 samples from various steps of an integrated broiler production company including broiler breeder farms, broiler farms, broiler trucks, slaughterhouse, and retail chicken meats were collected and investigated. Salmonella was detected in 195 of the samples. The highest prevalence of Salmonella was observed in broiler transporting trucks (71.43%), followed by the slaughterhouse (63.89%) and broiler farms (16.05%). Salmonella Hadar was the most frequently isolated serotype (83.08%). All Salmonella Hadar isolates investigated in this study with pulsed-field gel electrophoresis showed the same XbaI pulsed-field gel electrophoresis pulsotype. PMID:24795319

  12. Integrating multimodal transport into cellulosic biofuel supply chain design under feedstock seasonality with a case study based on California.

    Science.gov (United States)

    Xie, Fei; Huang, Yongxi; Eksioglu, Sandra

    2014-01-01

    A multistage, mixed integer programing model was developed that fully integrates multimodal transport into the cellulosic biofuel supply chain design under feedstock seasonality. Three transport modes are considered: truck, single railcar, and unit train. The goal is to minimize the total cost for infrastructure, feedstock harvesting, biofuel production, and transportation. Strategic decisions including the locations and capacities of transshipment hubs, biorefineries, and terminals and tactical decisions on system operations are optimized in an integrated manner. When the model was implemented to a case study of cellulosic ethanol production in California, it was found that trucks are convenient for short-haul deliveries while rails are more effective for long-haul transportation. Taking the advantage of these benefits, the multimodal transport provides more cost effective solutions than the single-mode transport (truck). PMID:24275021

  13. The Research on Integrated Strategy of Supply Chain Information Systems in the Automobile Industry Based on Order-To-Delivery Mode

    Science.gov (United States)

    Li, Ming; Gan, Lianzhen; He, Xuefeng

    The automotive industry there are different degrees of impairment of many companies supply chain IT strategy. In this paper, in which the automotive industry supply chain management business cooperation between enterprises loose, poor exchange of information leading to the presence or delays in product customization, supply of raw materials, material control, production planning and control, sales and service and a fast response propose a series of typical problems of scientific and rational supply chain information integration strategy. The strategy through the development system integration platform, improve internal ERP system, implementation of supply chain management and other methods. Put some protection principles in the information process, to ensure the correct implementation of supply chain IT strategy, and ultimately achieve collaborative business development concept and enhance the automotive industry as a whole level of information.

  14. Integration within the Felsenstein equation for improved Markov chain Monte Carlo methods in population genetics

    DEFF Research Database (Denmark)

    Hey, Jody; Nielsen, Rasmus

    2007-01-01

    In 1988, Felsenstein described a framework for assessing the likelihood of a genetic data set in which all of the possible genealogical histories of the data are considered, each in proportion to their probability. Although not analytically solvable, several approaches, including Markov chain Monte...... posterior density of the model parameters. For many purposes, this function can be treated as a likelihood, thereby permitting likelihood-based analyses, including likelihood ratio tests of nested models. Several examples, including an application to the divergence of chimpanzee subspecies, are provided....

  15. Integrated planning problem in supply chains with time-varying delivery

    Science.gov (United States)

    Wang, Hai-ying; Liu, Da-cheng; Ding, Hua; Guo, Fu

    2011-10-01

    We consider a serial supply chain consisting of a raw material supplier, a manufacturer, a distribution centre and a retailer in the presence of time-varying delivery between manufacturer facility and the retailer warehouse. Delivery time functions are developed based on practical data analysis and the cost models for both linear and non-linear delivery time functions are derived. Analytic solution for system with linear delivery times is derived and a search algorithm for system with non-linear delivery times is established. Finally, sensitivity analysis is made to help decision makers achieve a lower total cost in practice.

  16. The Empirical Research on Seed Industry Chain Integration Based on Chain Management in Gansu%基于产业链管理的甘肃制种产业链整合实证研究

    Institute of Scientific and Technical Information of China (English)

    吕萍; 罗海燕

    2012-01-01

    In this paper,a questionnaire survey which was based on the industry chain and industry chain integration theory was conducted to the enterprises of Gansu production industry chain. On the foundation of the validity and reliability, a structural equation model was built and tested. The result shows that the industrial chain integration had significantly affected the seed enterprise performance. What's more,the internal integration, which is the basic conditions of external integration,is positively correlated with external integration and has larger influence on corporate performance.%本文以产业链及产业链整合理论为基础,对甘肃制种产业链上企业进行了问卷调查.在对问卷结果进行效度和信度检验的基础上,通过结构方程模型的构建和检验,表明产业链整合对种子企业绩效影响是显著的,内部整合比外部整合对企业绩效产生的影响大,内部整合和外部整合正向相关,内部整合是外部整合的基础条件.

  17. Critical chain project management and drum-buffer-rope tools integration in construction industry - case study

    Directory of Open Access Journals (Sweden)

    Piotr Cyplik

    2012-03-01

    Full Text Available Background: The concept of integrating the theory of constraints tools in reorganizing management system in a mechanical engineering company was presented in this article. The main aim of the concept is to enable the enterprise to satisfy the customers' expectations at reasonable costs, which allows for making a profit and creating an agile enterprise in the long run. Methods: Due to the individual character of the production process and service process in analyzed company, the described concept using theory of constraints project management (CCPM and manufacturing (DBR tools. The authors use performance levels conception to build an integration tool focused on the interaction and collaboration between different departments. The integration tool has been developed and verified in Polish manufacturing company. Results: In described model a tool compatible with CCPM operates on the level of the customer service process. Shop floor is controlled based on the DBR method. The authors hold that the integration of between TOC tools is of key importance. The integration of TOC tools dedicated to managing customer service and shop floor scheduling and controlling requires developing a mechanism for repeated transmitting the information between them. This mechanism has been developed. Conclusions: The conducted research showed that the developed tool integrating CCPM and DBR had a positive impact on the enterprise performance. It enables improving the company performance in meeting target group requirements by focusing on enhancing the efficiency of processes running in the company and tasks processed at particular work stations. The described model has been successfully implemented in one of the Polish mechanical engineering companies.

  18. Integrated Design for Marketing and Manufacturing team: An examination of LA-ICP-AES in a mobile configuration. Final report

    International Nuclear Information System (INIS)

    The Department of Energy (DOE) has identified the need for field-deployable elemental analysis devices that are safer, faster, and less expensive than the fixed laboratory procedures now used to screen hazardous waste sites. As a response to this need, the Technology Integration Program (TIP) created a mobile, field-deployable laser ablation-inductively coupled plasma-atomic emission spectrometry (LA-ICP-AES) sampling and analysis prototype. Although the elemental. screening prototype has been successfully field-tested, continued marketing and technical development efforts are required to transfer LA-ICP-AES technology to the commercial sector. TIP established and supported a student research and design group called the Integrated Design for Marketing and Manufacturing (IDMM) team to advance the technology transfer of mobile, field-deployable LA-ICP-AES. The IDMM team developed a conceptual design (which is detailed in this report) for a mobile, field-deployable LA-ICP-AES sampling and analysis system, and reports the following findings: Mobile, field-deployable LA-ICP-AES is commercially viable. Eventual regulatory acceptance of field-deployable LA-ICP-AES, while not a simple process, is likely. Further refinement of certain processes and components of LA-ICP-AES will enhance the device's sensitivity and accuracy

  19. Opportunities and Barriers related to Supply Chain Collaboration for Delivering Integrated Single-Family Home Renovations

    NARCIS (Netherlands)

    Mlecnik, E.; Kondratenko, I.; Haavik, T.

    2013-01-01

    Single-family home renovations often show deficiencies in project management. There might be a market addressing house owners who would prefer integrated renovation services and clear responsibilities. Companies that would respond to these client’s needs would have a clear market potential, particul

  20. Pectic arabinan side chains are essential for pollen cell wall integrity during pollen development

    NARCIS (Netherlands)

    Cankar, K.; Kortstee, A.J.; Toonen, M.A.J.; Wolters-Arts, M.; Houbein, R.; Mariani, C.; Ulvskov, P.; Jorgensen, B.; Schols, H.A.; Visser, R.G.F.; Trindade, L.M.

    2014-01-01

    Pectin is a complex polysaccharide and an integral part of the primary plant cell wall and middle lamella, contributing to cell wall mechanical strength and cell adhesion. To understand the structure–function relationships of pectin in the cell wall, a set of transgenic potato lines with altered pec

  1. Integrable anyon chains: From fusion rules to face models to effective field theories

    Science.gov (United States)

    Finch, Peter E.; Flohr, Michael; Frahm, Holger

    2014-12-01

    Starting from the fusion rules for the algebra SO (5)2 we construct one-dimensional lattice models of interacting anyons with commuting transfer matrices of 'interactions round the face' (IRF) type. The conserved topological charges of the anyon chain are recovered from the transfer matrices in the limit of large spectral parameter. The properties of the models in the thermodynamic limit and the low energy excitations are studied using Bethe ansatz methods. Two of the anyon models are critical at zero temperature. From the analysis of the finite size spectrum we find that they are effectively described by rational conformal field theories invariant under extensions of the Virasoro algebra, namely WB2 and WD5, respectively. The latter contains primaries with half and quarter spin. The modular partition function and fusion rules are derived and found to be consistent with the results for the lattice model.

  2. Integrable anyon chains: From fusion rules to face models to effective field theories

    Energy Technology Data Exchange (ETDEWEB)

    Finch, Peter E.; Flohr, Michael; Frahm, Holger

    2014-12-15

    Starting from the fusion rules for the algebra SO(5){sub 2} we construct one-dimensional lattice models of interacting anyons with commuting transfer matrices of ‘interactions round the face’ (IRF) type. The conserved topological charges of the anyon chain are recovered from the transfer matrices in the limit of large spectral parameter. The properties of the models in the thermodynamic limit and the low energy excitations are studied using Bethe ansatz methods. Two of the anyon models are critical at zero temperature. From the analysis of the finite size spectrum we find that they are effectively described by rational conformal field theories invariant under extensions of the Virasoro algebra, namely WB{sub 2} and WD{sub 5}, respectively. The latter contains primaries with half and quarter spin. The modular partition function and fusion rules are derived and found to be consistent with the results for the lattice model.

  3. Integrable spin chain for the SL(2,R)/U(1) black hole sigma model.

    Science.gov (United States)

    Ikhlef, Yacine; Jacobsen, Jesper Lykke; Saleur, Hubert

    2012-02-24

    We introduce a spin chain based on finite-dimensional spin-1/2 SU(2) representations but with a non-Hermitian "Hamiltonian" and show, using mostly analytical techniques, that it is described at low energies by the SL(2,R)/U(1) Euclidian black hole conformal field theory. This identification goes beyond the appearance of a noncompact spectrum; we are also able to determine the density of states, and show that it agrees with the formulas in [J. Maldacena, H. Ooguri, and J. Son, J. Math. Phys. (N.Y.) 42, 2961 (2001)] and [A. Hanany, N. Prezas, and J. Troost, J. High Energy Phys. 04 (2002) 014], hence providing a direct "physical measurement" of the associated reflection amplitude. PMID:22463514

  4. Spinning Strings and Integrable Spin Chains in the AdS/CFT Correspondence

    Directory of Open Access Journals (Sweden)

    Plefka Jan

    2005-11-01

    Full Text Available In this introductory review we discuss dynamical tests of the AdS_5 × S^5 string/N = 4 Super Yang-Mills duality. After a brief introduction to AdS/CFT, we argue that semiclassical string energies yield information on the quantum spectrum of the string in the limit of large angular momenta on the S^5. The energies of the folded and circular spinning string solutions rotating on a S^3 within the S^5 are derived, which yield all-loop predictions for the dual gauge theory scaling dimensions. These follow from the eigenvalues of the dilatation operator of N = 4 Super Yang-Mills in a minimal SU(2 subsector, and we display its reformulation in terms of a Heisenberg s = 1/2 spin chain along with the coordinate Bethe ansatz for its explicit diagonalization. In order to make contact to the spinning string energies, we then study the thermodynamic limit of the one-loop gauge theory Bethe equations and demonstrate the matching with the folded and closed string result at this loop order. Finally, the known gauge theory results at higher-loop orders are reviewed and the associated long-range spin chain Bethe ansatz is introduced, leading to an asymptotic all-loop conjecture for the gauge theory Bethe equations. This uncovers discrepancies at the three-loop order between gauge theory scaling dimensions and string theory energies and the implications of this are discussed. Along the way, we comment on further developments and generalizations of the subject and point to the relevant literature.

  5. Analysis of ultra-high sensitivity configuration in chip-integrated photonic crystal microcavity bio-sensors

    Energy Technology Data Exchange (ETDEWEB)

    Chakravarty, Swapnajit, E-mail: swapnajit.chakravarty@omegaoptics.com; Hosseini, Amir; Xu, Xiaochuan [Omega Optics, Inc., Austin, Texas 78757 (United States); Zhu, Liang; Zou, Yi [Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, Texas 78758 (United States); Chen, Ray T., E-mail: raychen@uts.cc.utexas.edu [Omega Optics, Inc., Austin, Texas 78757 (United States); Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, Texas 78758 (United States)

    2014-05-12

    We analyze the contributions of quality factor, fill fraction, and group index of chip-integrated resonance microcavity devices, to the detection limit for bulk chemical sensing and the minimum detectable biomolecule concentration in biosensing. We analyze the contributions from analyte absorbance, as well as from temperature and spectral noise. Slow light in two-dimensional photonic crystals provide opportunities for significant reduction of the detection limit below 1 × 10{sup −7} RIU (refractive index unit) which can enable highly sensitive sensors in diverse application areas. We demonstrate experimentally detected concentration of 1 fM (67 fg/ml) for the binding between biotin and avidin, the lowest reported till date.

  6. 基于SVN的软件配置管理和持续集成%The software configuration management and the continuous integration based on SVN

    Institute of Scientific and Technical Information of China (English)

    姜文; 刘立康

    2016-01-01

    SVN是一款广泛使用的配置管理工具,适合中小型软件团队使用。本文叙述了SVN的特点,介绍了配置管理的基本概念和相关角色;详细介绍了基于SVN的软件配置管理和持续集成,主要包括权限管理、SVN控制管理下的开发工作、建立编码基线、构建内部转测试版本、变更管理、版本管理等内容;最后介绍了一个典型工作案例。工作实践表明采用该管理方法有助于提高软件质量,便于项目管理者及时了解工作进度和解决存在的问题。%The SVN is a widely used configuration management tool, which is suitable for small and medium-sized software team. This article describes the characteristics of SVN, introduces the basic concept of configuration management and related role; detailed introduced the software configuration management based on SVN and continuous integration, including rights management, the development work under control of SVN, sets up the coding baseline, builds the internal test version, changes management, version management, and other content; Finally introduces a typical case. Practice shows that this management method is helpful to improve the quality of software, is convenient for project managers understand the work progress and timely solve the problems.

  7. Mitigation of ammonia, nitrous oxide and methane emissions from manure management chains: a meta-analysis and integrated assessment.

    Science.gov (United States)

    Hou, Yong; Velthof, Gerard L; Oenema, Oene

    2015-03-01

    Livestock manure contributes considerably to global emissions of ammonia (NH3 ) and greenhouse gases (GHG), especially methane (CH4 ) and nitrous oxide (N2 O). Various measures have been developed to mitigate these emissions, but most of these focus on one specific gas and/or emission source. Here, we present a meta-analysis and integrated assessment of the effects of mitigation measures on NH3 , CH4 and (direct and indirect) N2 O emissions from the whole manure management chain. We analysed the effects of mitigation technologies on NH3 , CH4 and N2 O emissions from individual sources statistically using results of 126 published studies. Whole-chain effects on NH3 and GHG emissions were assessed through scenario analysis. Significant NH3 reduction efficiencies were observed for (i) housing via lowering the dietary crude protein (CP) content (24-65%, compared to the reference situation), for (ii) external slurry storages via acidification (83%) and covers of straw (78%) or artificial films (98%), for (iii) solid manure storages via compaction and covering (61%, compared to composting), and for (iv) manure application through band spreading (55%, compared to surface application), incorporation (70%) and injection (80%). Acidification decreased CH4 emissions from stored slurry by 87%. Significant increases in N2 O emissions were found for straw-covered slurry storages (by two orders of magnitude) and manure injection (by 26-199%). These side-effects of straw covers and slurry injection on N2 O emission were relatively small when considering the total GHG emissions from the manure chain. Lowering the CP content of feed and acidifying slurry are strategies that consistently reduce NH3 and GHG emissions in the whole chain. Other strategies may reduce emissions of a specific gas or emissions source, by which there is a risk of unwanted trade-offs in the manure management chain. Proper farm-scale combinations of mitigation measures are important to minimize impacts of

  8. Packing of charged chains on toroidal geometries

    Science.gov (United States)

    Yao, Zhenwei; de la Cruz, Monica Olvera

    2013-01-01

    We study a strongly adsorbed flexible polyelectrolyte chain on tori. In this generalized Thomson problem, the patterns of the adsorbed chain are analyzed in the space of the toroidal coordinates and in terms of the orientation of each chain segment. Various patterns are found, including double spirals, disclination-like structures, Janus tori, and uniform wrappings, arising from the long-range electrostatic interaction and the toroidal geometry. Their broken mirror symmetry is quantitatively characterized by introducing an order parameter, an integral of the torsion. The uniform packing, which breaks the mirror symmetry the least, has the lowest value of the order parameter. In addition, it is found that the electrostatic energy of confined chains on tori conforms to a power law regardless of the screening effect in some typical cases studied. Furthermore, we study random walks on tori that generate chain configurations in the large screening limit or at large thermal fluctuation; some features associated with the toroidal geometry are discussed.

  9. Uncertainty assessment of integrated distributed hydrological models using GLUE with Markov chain Monte Carlo sampling

    DEFF Research Database (Denmark)

    Blasone, Roberta-Serena; Madsen, Henrik; Rosbjerg, Dan

    2008-01-01

    In recent years, there has been an increase in the application of distributed, physically-based and integrated hydrological models. Many questions regarding how to properly calibrate and validate distributed models and assess the uncertainty of the estimated parameters and the spatially......-site validation must complement the usual time validation. In this study, we develop, through an application, a comprehensive framework for multi-criteria calibration and uncertainty assessment of distributed physically-based, integrated hydrological models. A revised version of the generalized likelihood......-distributed responses are, however, still quite unexplored. Especially for complex models, rigorous parameterization, reduction of the parameter space and use of efficient and effective algorithms are essential to facilitate the calibration process and make it more robust. Moreover, for these models multi...

  10. More Competitiveness of the Port of Koper Through Supply Chain Integration

    OpenAIRE

    Trupac, Igor; Twrdy, Elen

    2010-01-01

    With the European Union growing eastwards and with the establishment of important production facilities in the countries of Central and Eastern Europe, the hinterland potential is bound to grow even more. The strategic goal of the Port of Koper is to become one of the best ports in the Southern Europe, to develop from a handling port into a commodity distributional centre. Penetrating and exploiting these markets demands cooperation (integration) with the existing inland terminals (logistic c...

  11. Critical chain project management and drum-buffer-rope tools integration in construction industry - case study

    OpenAIRE

    Piotr Cyplik; Michał Adamczak; Łukasz Hadaś

    2012-01-01

    Background: The concept of integrating the theory of constraints tools in reorganizing management system in a mechanical engineering company was presented in this article. The main aim of the concept is to enable the enterprise to satisfy the customers' expectations at reasonable costs, which allows for making a profit and creating an agile enterprise in the long run. Methods: Due to the individual character of the production process and service process in analyzed company, the ...

  12. Hypertext Configurations

    DEFF Research Database (Denmark)

    Finnemann, Niels Ole

    2016-01-01

    , links, interactive processes, and time scalings, and that the hypertext configuration is a major but not sole source of the messiness of big data. The notion of hypertext will be revalidated, placed at the center of the interpretation of networked digital media, and used in the analysis of the fast...

  13. Two Echelon Supply Chain Integrated Inventory Model for Similar Products: A Case Study

    Science.gov (United States)

    Parjane, Manoj Baburao; Dabade, Balaji Marutirao; Gulve, Milind Bhaskar

    2016-03-01

    The purpose of this paper is to develop a mathematical model towards minimization of total cost across echelons in a multi-product supply chain environment. The scenario under consideration is a two-echelon supply chain system with one manufacturer, one retailer and M products. The retailer faces independent Poisson demand for each product. The retailer and the manufacturer are closely coupled in the sense that the information about any depletion in the inventory of a product at a retailer's end is immediately available to the manufacturer. Further, stock-out is backordered at the retailer's end. Thus the costs incurred at the retailer's end are the holding costs and the backorder costs. The manufacturer has only one processor which is time shared among the M products. Production changeover from one product to another entails a fixed setup cost and a fixed set up time. Each unit of a product has a production time. Considering the cost components, and assuming transportation time and cost to be negligible, the objective of the study is to minimize the expected total cost considering both the manufacturer and retailer. In the process two aspects are to be defined. Firstly, every time a product is taken up for production, how much of it (production batch size, q) should be produced. Considering a large value of q favors the manufacturer while a small value of q suits the retailers. Secondly, for a given batch size q, at what level of retailer's inventory (production queuing point), the batch size S of a product be taken up for production by the manufacturer. A higher value of S incurs more holding cost whereas a lower value of S increases the chance of backorder. A tradeoff between the holding and backorder cost must be taken into consideration while choosing an optimal value of S. It may be noted that due to multiple products and single processor, a product `taken' up for production may not get the processor immediately, and may have to wait in a queue. The `S

  14. Assessing Consumer Values and the Supply-Chain Market for the Integrated Water Heater/Dehumidifier

    Energy Technology Data Exchange (ETDEWEB)

    Ashdown, BG

    2005-01-11

    This paper presents a case study of the potential market for the dual-service residential integrated water heater/dehumidifier (WHD). Its principal purpose is to evaluate the extent to which this integrated appliance might penetrate the residential market sector, given current market trends, producer and consumer attributes, and technical parameters. The report's secondary purpose is to gather background information leading to a generic framework for conducting market analyses of technologies. This framework can be used to assess market readiness as well as factor preferred product attributes into the design to drive consumer demand for this product. This study also supports analysis for prototype design. A full market analysis for potential commercialization should be conducted after prototype development. The integrated WHD is essentially a heat-pump water heater (HPWH) with components and controls that allow dedicated dehumidification. Adequate residential humidity control is a growing issue for newly constructed residential homes, which are insulated so well that mechanical ventilation may be necessary to meet fresh air requirements. Leveraging its successful experience with the energy-efficient design improvement for the residential HPWH, the Oak Ridge National Laboratory's (ORNL's) Engineering Science and Technology Division's (ESTD's) Building Equipment Group designed a water-heating appliance that combines HPWH efficiency with dedicated dehumidification. This integrated appliance could be a low-cost solution for dehumidification and efficient electric water heating. ORNL is partnering with Western Carolina University, Asheville-Buncombe Technical Community College, American Carolina Stamping Company, and Clemson University to develop this appliance and assess its market potential. For practical purposes, consumers are indifferent to how water is heated but are very interested in product attributes such as initial first cost

  15. ICT Based Information Flows and Supply Chain in Integrating Academic Business Process

    Directory of Open Access Journals (Sweden)

    Dwi Sulisworo

    2012-01-01

    Full Text Available Organizations' viability is a complex issue, owing to the high number of factors that affect it. In recent years, they have made increasing use of systems thinking, which has proved useful by helping them to a better understanding of problems arising in complex situations, and by providing them with a set of tools suitable for dealing with such problems. The implication is the higher education institutions has been facing the more complex situation that should be considered on giving better education service; including Ahmad Dahlan University (ADU. This paper attempts to show how the new communication and information technologies and the internet in particular can help in the design of viable organizations especially at ADU. The paper presents and describes the management information system named SIA (Sistem Informasi Akademik/ Academic Information System based on internet technology, created for the purpose as mentioned above. This system covers almost the value chain of academic business process from student enrollment to student graduation. This information system can be accessed by all relevant internal stakeholders with some level of authority. Communication and information technologies enable the university to help in the design of viable organizations by means of internet-based information system. The satisfaction of student service has increased as an implication of customer oriented framework because of less bureaucracy, reducing time response of some services, and increasing accurate decision.

  16. On a path integral description of the dynamics of an inextensible chain and its connection to constrained stochastic dynamics

    International Nuclear Information System (INIS)

    The dynamics of a freely jointed chain in the continuous limit is described by a field theory which closely resembles the nonlinear sigma model. The generating functional Ψ[J] of this field theory contains nonholonomic constraints, which are imposed by inserting in the path integral expressing Ψ[J] a suitable product of delta functions. The same procedure is commonly applied in statistical mechanics in order to enforce topological conditions on a system of linked polymers. The disadvantage of this method is that the contact with the stochastic process governing the diffusion of the chain is apparently lost. The main goal of this work is to re-establish this contact. For this purpose, it is shown here that the generating functional Ψ[J] coincides with the generating functional of the correlation functions of the solutions of a constrained Langevin equation. In the discrete case, this Langevin equation describes as expected the Brownian motion of beads connected together by links of fixed length

  17. Development of a novel pixel-level signal processing chain for fast readout 3D integrated CMOS pixel sensors

    Energy Technology Data Exchange (ETDEWEB)

    Fu, Y.; Torheim, O.; Hu-Guo, C. [Institut Pluridisciplinaire Hubert Curien (IPHC), 23 rue du loess, BP 28, 67037 Strasbourg (France); Degerli, Y. [CEA Saclay, IRFU/SEDI, 91191 Gif-sur-Yvette Cedex (France); Hu, Y., E-mail: yann.hu@iphc.cnrs.fr [Institut Pluridisciplinaire Hubert Curien (IPHC), 23 rue du loess, BP 28, 67037 Strasbourg (France)

    2013-03-11

    In order to resolve the inherent readout speed limitation of traditional 2D CMOS pixel sensors, operated in rolling shutter readout, a parallel readout architecture has been developed by taking advantage of 3D integration technologies. Since the rows of the pixel array are zero-suppressed simultaneously instead of sequentially, a frame readout time of a few microseconds is expected for coping with high hit rates foreseen in future collider experiments. In order to demonstrate the pixel readout functionality of such a pixel sensor, a 2D proof-of-concept chip including a novel pixel-level signal processing chain was designed and fabricated in a 0.13μm CMOS technology. The functionalities of this chip have been verified through experimental characterization.

  18. On asymptotic stabilisation of a chain of integrators with nonlinearity and an uncertain input delay by output feedback

    Science.gov (United States)

    Choi, Ho-Lim

    2014-12-01

    In this paper, we provide an output feedback solution over one given by Choi and Lim [Systems & Control Letters, 59(6), 374-379 (2010)] under more generalised system set-up. More specifically, we consider a stabilisation problem of a chain of integrators that has nonlinearity and an uncertain delay in the input by output feedback. The nonlinearity is classified into four types. Then, we propose a memoryless output feedback controller which contains a gain-scaling factor to adjust controller gains depending on the given nonlinearity type. Our stability analysis shows that the controlled system has unique stabilisation result associated with each type of nonlinearity. Our result provides a new aspect to the stabilisation problem of nonlinear time-delay systems and broadens the existing control results of time-delay systems. Two examples are given for illustration.

  19. A Small Molecule That Protects the Integrity of the Electron Transfer Chain Blocks the Mitochondrial Apoptotic Pathway.

    Science.gov (United States)

    Jiang, Xian; Li, Li; Ying, Zhengxin; Pan, Chenjie; Huang, Shaoqiang; Li, Lin; Dai, Miaomiao; Yan, Bo; Li, Ming; Jiang, Hui; Chen, She; Zhang, Zhiyuan; Wang, Xiaodong

    2016-07-21

    In response to apoptotic stimuli, mitochondria in mammalian cells release cytochrome c and other apoptogenic proteins, leading to the subsequent activation of caspases and apoptotic cell death. This process is promoted by the pro-apoptotic members of the Bcl-2 family of proteins, such as Bim and Bax, which, respectively, initiate and execute cytochrome c release from the mitochondria. Here we report the discovery of a small molecule that efficiently blocks Bim-induced apoptosis after Bax is activated on the mitochondria. The cellular target of this small molecule was identified to be the succinate dehydrogenase subunit B (SDHB) protein of complex II of the mitochondrial electron transfer chain (ETC). The molecule protects the integrity of the ETC and allows treated cells to continue to proliferate after apoptosis induction. Moreover, this molecule blocked dopaminergic neuron death and reversed Parkinson-like behavior in a rat model of Parkinson's disease. PMID:27447985

  20. An integrated production and inventory model for a system comprising an assembly supply chain and a distribution network

    Science.gov (United States)

    Ho, Wen-Tsung; Hsiao, Yu-Cheng

    2014-05-01

    This study investigates the production and inventory problem for a system comprising an assembly supply chain and a distribution network. A uniform lot size is produced uninterruptedly with a single setup at each production stage. Equal-sized batch shipment policy is applied to the whole system and the number of batches can be varied. All retailers have agreed on a joint replenishment policy with a common replenishment cycle. The objective is to determine the optimal common replenishment cycle, the number of batches of each production stage and retailer, all of which minimises the integrated total cost. Moreover, a new concept is introduced; namely, critical replenishment cycle. The replenishment cycle division (RCD) and recursive tightening (RT) methods are then developed to obtain the optimal solutions to the subject problem. Two theorems are verified to ensure the solutions obtained by the RCD and RT methods reaching the global optimum. An example is presented to illustrate the procedures involved in the RCD and RT methods.

  1. Dynamic configuring of the metastructure

    Directory of Open Access Journals (Sweden)

    Katarzyna Grzybowska

    2012-06-01

    Full Text Available Background: A trend to create groups of enterprises can be observed; whose model of operation makes use of assets of large, small and medium sized companies. It is a higher level of organisational changes. This trend is described as network organisation. It is based on the so called supply chain. The Authors of this paper proposed authors' analysis dynamic configuration of the supply chain and presents an example. The supply chain is a metastructure. It is an intermediate form between a single enterprise (microstructure/microsystem and the global economy (macrostructure/macrosystem. The metastructure is characterized by a dynamic holarchy of mutually cooperating holons (enterprises. Methods: After a brief discussion of the nature of supply chain (metrastructure and configuration of metastructures, authors present variable supply chains in the light of morphological analysis and presents an example.   Results: The key benefits of this approach are: identifying the characteristics of a supply network and modeling the flow in the entire own supply chain metastructure and possible quick adaptations to new situations. Conclusions: Configuration of a supply chain with the use of a morphological analysis is a basic action, if its goal is to optimally model the flow of goods and implementation of quick adaptation to new situations.     

  2. An IPC-based Prolog design pattern for integrating backward chaining inference into applications or embedded systems

    Directory of Open Access Journals (Sweden)

    Li Guoqi

    2014-12-01

    Full Text Available Prolog is one of the most important candidates to build expert systems and AI-related programs and has potential applications in embedded systems. However, Prolog is not suitable to develop many kinds of components, such as data acquisition and task scheduling, which are also crucial. To make the best use of the advantages and bypass the disadvantages, it is attractive to integrate Prolog with programs developed by other languages. In this paper, an IPC-based method is used to integrate backward chaining inference implemented by Prolog into applications or embedded systems. A Prolog design pattern is derived from the method for reuse, whose principle and definition are provided in detail. Additionally, the design pattern is applied to a target system, which is free software, to verify its feasibility. The detailed implementation of the application is given to clarify the design pattern. The design pattern can be further applied to wide range applications and embedded systems and the method described in this paper can also be adopted for other logic programming languages.

  3. An IPC-based Prolog design pattern for integrating backward chaining inference into applications or embedded systems

    Institute of Scientific and Technical Information of China (English)

    Li Guoqi; Shao Yuanxun; Hong Sheng; Liu Bin

    2014-01-01

    Prolog is one of the most important candidates to build expert systems and AI-related programs and has potential applications in embedded systems. However, Prolog is not suitable to develop many kinds of components, such as data acquisition and task scheduling, which are also crucial. To make the best use of the advantages and bypass the disadvantages, it is attractive to inte-grate Prolog with programs developed by other languages. In this paper, an IPC-based method is used to integrate backward chaining inference implemented by Prolog into applications or embed-ded systems. A Prolog design pattern is derived from the method for reuse, whose principle and def-inition are provided in detail. Additionally, the design pattern is applied to a target system, which is free software, to verify its feasibility. The detailed implementation of the application is given to clar-ify the design pattern. The design pattern can be further applied to wide range applications and embedded systems and the method described in this paper can also be adopted for other logic pro-gramming languages.

  4. Description of the HIA line in the CEEH integrated modelling chain. CEEH scientific report no. 5

    Energy Technology Data Exchange (ETDEWEB)

    Meulengracht Flachs, E. [Univ. of Southern Denmark (SDU), Odense (Denmark); Boenloekke, J.H.; Sigsgaard, T. [Aarhus Universitet, Aarhus (Denmark)] [and others

    2012-11-01

    The purpose of this report is to describe the different components constituting the HIA-line in the CEEH integrated energy-environment-health-cost modelling. The CEEH framework consists of a number of independent models linked together to assess the impacts and associated costs of emissions from energy production on human health. The HIA-line carries out assessment of the health impact and associated costs of human exposure to air pollution from future scenarios for energy production in Denmark. The methodology employed is the impact pathway, where future emissions from all Danish air pollution sources are modelled in the Balmorel model; the emitted air pollution is then dispersed and chemically transformed in time and space by either the NERI or the DMI Atmospheric Chemical Transport models. The resulting concentration fields of air pollution are then averaged to give municipality based levels, and the resulting health impact and associated societal cost of the Danish population is modelled in the Health Impact Assessment model. The social costs associated with air pollution exposure are then converted from the modelled exposure costs to emission costs to be fed into the Balmorel model as additional energy production costs. The CEEH HIA-line presents a novel way of modelling health related consequences of air pollution, as it directly models, the demography, air pollution, morbidity and mortality, in a dynamic and integrated setup. When modelling the health impact of Danish emitted air pollution in the period from 2005 to 2030 we find 2,000 extra deaths of lung cancer, 3,950 deaths of heart disease, 7,375 deaths of stroke and 1,750 deaths of COPD, and 11.475 premature deaths, amounting to 163,075 lost life years in the modelled 25-year period. The health related social costs sums up to 60.8m Euro for lung cancer, 88.3m Euro for heart disease, 91.6m Euro for stroke, 18.7m Euro for COPD, 26.9m Euro for other cause mortality and in total 282.5m Euro throughout the

  5. "Smart pharmacy" master blends integrated supply chains with patient care to uphold regulatory compliances.

    Science.gov (United States)

    Bhinder, Prabhjot; Oberoi, Mandeep Singh

    2009-01-01

    Hospitals require better information connectivity because timing and content of the information to be traded is critical. The imperative success in the past has generated renewed thrust on the expectations and credibility of the current enterprise resource planning (ERP) applications in health care. The desire to bring improved connectivity and to match it with critical timing remains the penultimate dream. Currently, majority of ERP system integrators are not able to match these requirements of the healthcare industry. It is perceived that the concept of ERP has made the process of segregating bills and patient records much easier. Hence the industry is able to save more lives, but at the cost of an individual's privacy as it enables to access the database of patients and medical histories through the common database shared by hospitals though at a quicker rate. Businesses such as health care providers, pharmaceutical manufacturers, and distributors have already implemented rapid ERPs. The new concept "Smart Pharmacies" will link the process all the way from drug delivery, patient care, demand management, drug repository, and pharmaceutical manufacturers while maintaining Regulatory Compliances and make the vital connections where these Businesses will talk to each other electronically. PMID:19964555

  6. 基于供应链集成的物流战略管理研究%Study on Strategic Logistics Management Based on Supply Chain Integration

    Institute of Scientific and Technical Information of China (English)

    赵欣

    2015-01-01

    在分析供应链集成的物流战略管理涵义的基础上,指出供应链各核心物流企业在信息集成的前提下,其物流战略目标只有具有互容性、战略资源配置具有互补性并通过供应链上下游企业及同级节点核心企业之间纵向横向集成,才能真正实现基于供应链集成的物流战略管理.%In this paper,on the basis of an analysis of the connotation of the strategic logistics management in supply chain integration,we pointed out that during the information integration process of the core logistics enterprises on a supply chain,only when the strategic logistics objectives of the enterprises were compatible,their strategic logistics resources were complementary and the upstream and downstream enterprises on the supply chain were vertically integrated and the core enterprises on the same level laterally integrated,could the supply chain integration based strategic logistics management system be realized.

  7. Quantum Group U_q(sl(2 Symmetry and Explicit Evaluation of the One-Point Functions of the Integrable Spin-1 XXZ Chain

    Directory of Open Access Journals (Sweden)

    Tetsuo Deguchi

    2011-06-01

    Full Text Available We show some symmetry relations among the correlation functions of the integrable higher-spin XXX and XXZ spin chains, where we explicitly evaluate the multiple integrals representing the one-point functions in the spin-1 case. We review the multiple-integral representations of correlation functions for the integrable higher-spin XXZ chains derived in a region of the massless regime including the anti-ferromagnetic point. Here we make use of the gauge transformations between the symmetric and asymmetric R-matrices, which correspond to the principal and homogeneous gradings, respectively, and we send the inhomogeneous parameters to the set of complete 2s-strings. We also give a numerical support for the analytical expression of the one-point functions in the spin-1 case.

  8. B2B collaboration method through trust values for e-supply chain integrator: a case study of Malaysian construction industry

    Science.gov (United States)

    Ab. Aziz, Norshakirah; Ahmad, Rohiza; Dhanapal Durai, Dominic

    2011-12-01

    Limited trust, cooperation and communication have been identified as some of the issues that hinder collaboration among business partners. These one also true in the acceptance of e-supply chain integrator among organizations that involve in the same industry. On top of that, the huge number of components in supply chain industry also makes it impossible to include entire supply chain components in the integrator. Hence, this study intends to propose a method for identifying "trusted" collaborators for inclusion into an e-supply chain integrator. For the purpose of constructing and validating the method, the Malaysian construction industry is chosen as the case study due to its size and importance to the economy. This paper puts forward the background of the research, some relevant literatures which lead to trust values elements formulation, data collection from Malaysian Construction Supply Chain and a glimpse of the proposed method for trusted partner selection. Future work is also presented to highlight the next step of this research.

  9. Resource Integration Modeling and Simulation for Distributed Multi-stage Supply Chain with Time Window%基于时间窗的分布式多级供应链资源整合建模与仿真

    Institute of Scientific and Technical Information of China (English)

    李鑫涛; 钱燕云; 刘淑敏

    2013-01-01

    对于多级供应链的多产品、多结构以及多级采购、多生产配送的整体资源整合,构造一个引入具有时间窗的四级供应链模型,在各级供应链的时间窗的约束下,使得整个供应链的运营成本最低,从而确定供应商、制造商、配送中心的最优数目以及对其的选择,优化各个阶段的分配与运输的最优配置,并运用LING0 10.0进行仿真求解,对不同参数条件下的总成本进行估算,并对时间加以控制,证明模型的可行性和有效性.%The paper constructs a four-time windows supply chain model for the overall resource integration of the multilevel supply chain which is characterized by multi-product,multi-structure,multi-level procurement and multi-pro-duction distribution.In the time window constraints,the model makes the lowest operating costs of the entire supply chain at all levels of the supply chain.It identifies the optimal number of suppliers,manufacturers and distribution centers as well as their selection.Then the paper optimizes the optimal configuration of distribution and transport at various stages.By using LINGO 10.0 to simulate,estimating the total cost of the different parameters and controlling the time,the paper proves the feasibility and effectiveness of the model.

  10. M ulti-source dynamic integration for SaaS collaborative platform of industrial chain%面向产业链协同SaaS平台的多源信息动态集成技术

    Institute of Scientific and Technical Information of China (English)

    潘华; 王淑营; 孙林夫; 吕瑞

    2015-01-01

    针对产业链协同平台多源信息集成的需求,提出面向SaaS平台的多源信息动态集成解决方案。以平台上多数据源信息集成模型的设计与实现为核心,建立以平台为核心的多源信息集成规则,设计并实现基于SaaS平台的多源信息集成体系架构,基于XM L和Web Service技术建立面向客户端的多源信息安装向导,实现多源信息数据格式的智能化转换,通过W eb数据集成接口,实现企业与平台间数据的动态集成。其在汽车零部件产业链协同平台查询经销商社会库存的应用验证了该技术的可行性和有效性。%A multi‐source dynamic integration solution was proposed for the requirements of SaaS collaborative platform of indus‐trial chain .Taking the design and implementation of multi‐source message integration model as the core concept ,the protocol of multi‐source message integration was proposed and the framework of multi‐source message integration was designed .Based on XML and Web Service ,the integration pilot for client was the created ,the intelligent configuration of multi‐source message inte‐gration was realized .According to the integration interface of Web data ,the dynamic integration between platform and corpora‐tion was realized .The results of research were applied in querying social stock of the cooperative platform of auto industrial sup‐ply‐chain ,and the integration technology was verified to be feasible and effective .

  11. Collective optical Kerr effect exhibited by an integrated configuration of silicon quantum dots and gold nanoparticles embedded in ion-implanted silica

    Science.gov (United States)

    Torres-Torres, C.; López-Suárez, A.; Can-Uc, B.; Rangel-Rojo, R.; Tamayo-Rivera, L.; Oliver, A.

    2015-07-01

    The study of the third-order optical nonlinear response exhibited by a composite containing gold nanoparticles and silicon quantum dots nucleated by ion implantation in a high-purity silica matrix is presented. The nanocomposites were explored as an integrated configuration containing two different ion-implanted distributions. The time-resolved optical Kerr gate and z-scan techniques were conducted using 80 fs pulses at a 825 nm wavelength; while the nanosecond response was investigated by a vectorial two-wave mixing method at 532 nm with 1 ns pulses. An ultrafast purely electronic nonlinearity was associated to the optical Kerr effect for the femtosecond experiments, while a thermal effect was identified as the main mechanism responsible for the nonlinear optical refraction induced by nanosecond pulses. Comparative experimental tests for examining the contribution of the Au and Si distributions to the total third-order optical response were carried out. We consider that the additional defects generated by consecutive ion irradiations in the preparation of ion-implanted samples do not notably modify the off-resonance electronic optical nonlinearities; but they do result in an important change for near-resonant nanosecond third-order optical phenomena exhibited by the closely spaced nanoparticle distributions.

  12. Independent Peer Review of Communications, Navigation, and Networking re-Configurable Testbed (CoNNeCT) Project Antenna Pointing Subsystem (APS) Integrated Gimbal Assembly (IGA) Structural Analysis

    Science.gov (United States)

    Raju, Ivatury S.; Larsen, Curtis E.; Pellicciotti, Joseph W.

    2010-01-01

    Glenn Research Center Chief Engineer's Office requested an independent review of the structural analysis and modeling of the Communications, Navigation, and Networking re-Configurable Testbed (CoNNeCT) Project Antenna Pointing Subsystem (APS) Integrated Gimbal Assembly (IGA) to be conducted by the NASA Engineering and Safety Center (NESC). At this time, the IGA had completed its critical design review (CDR). The assessment was to be a peer review of the NEi-NASTRAN1 model of the APS Antenna, and not a peer review of the design and the analysis that had been completed by the GRC team for CDR. Thus, only a limited amount of information was provided on the structural analysis. However, the NESC team had difficulty separating analysis concerns from modeling issues. The team studied the NASTRAN model, but did not fully investigate how the model was used by the CoNNeCT Project and how the Project was interpreting the results. The team's findings, observations, and NESC recommendations are contained in this report.

  13. Innovation Across the Supply Chain

    DEFF Research Database (Denmark)

    Druehl, Cheryl; Carrillo, Janice; Hsuan, Juliana

    Innovation is an integral part of every firm’s ongoing operations. Beyond product innovation, supply chain innovations offer a unique source of competitive advantage. We synthesize recent research on innovation in the supply chain, specifically, innovative supply chain processes...

  14. Enhancement of Markov chain model by integrating exponential smoothing: A case study on Muslims marriage and divorce

    Science.gov (United States)

    Jamaluddin, Fadhilah; Rahim, Rahela Abdul

    2015-12-01

    Markov Chain has been introduced since the 1913 for the purpose of studying the flow of data for a consecutive number of years of the data and also forecasting. The important feature in Markov Chain is obtaining the accurate Transition Probability Matrix (TPM). However to obtain the suitable TPM is hard especially in involving long-term modeling due to unavailability of data. This paper aims to enhance the classical Markov Chain by introducing Exponential Smoothing technique in developing the appropriate TPM.

  15. Issues on Supply Chain Management

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Although supply chain is regarded as an integrated pr ocess, actually, researchers and practitioners have primarily investigated the v arious processes of the supply chain individually. The competitive field in most markets requires well-designed integrated supply chain instead of individual o perations. In this paper, some traditional thinking of supply chain is given fir st, then SCM (Supply Chain Management) is introduced, which views the entire sup ply chain as a whole rather than individual process a...

  16. Polysoaps: Configurations and Elasticity

    Science.gov (United States)

    Halperin, A.

    1997-03-01

    Simple polymers are very long, flexible, linear molecules. Amphiphiles, soaps, are small molecules comprising of a part that prefers water over oil and a part that prefers oil over water. By combining the two we arrive at an interesting, little explored, class of materials: Polysoaps. These comprise of a water soluble backbone incorporating, at intervals, covalently bound amphiphilic monomers. In water, the polymerised amphiphiles aggregate into self assembled units known as micelles. This induces a dramatic modification of the spatial configurations of the polymers. What were featureless random coils now exhibit intramolecular, hierachial self organisation. Due to this self organisation it is necessary to modify the paradigms describing the large scale behaviour of these polymers: Their configurations, dimensions and elasticity. Understanding the behaviour of these polymers is of practical interest because of their wide range of industrial applications, ranging from cosmetics to paper coating. It is of fundamental interest because polysoaps are characterised by a rugged free energy landscape that is reminiscent of complex systems such as proteins and glasses. The talk concerns theoretical arguments regarding the following issues: (i) The design parameters that govern the spatial configurations of the polysoaps, (ii) The interaction between polysoaps and free amphiphiles, (iii) The effect of the intramolecular self organisation on the elasticity of the chains.

  17. Dynamic Model-Based Evaluation of Process Configurations for Integrated Operation of Hydrolysis and Co-Fermentation for Bioethanol Production from Lignocellulose

    DEFF Research Database (Denmark)

    Morales Rodriguez, Ricardo; Meyer, Anne S.; Gernaey, Krist;

    2011-01-01

    . Each configuration was evaluated against the following benchmark criteria, yield (kg ethanol/kg dry-biomass), final product concentration and number of unit operations required in the different process configurations. The results show that simultaneous saccharification and co-fermentation (SSCF......In this study a number of different process flowsheets were generated and their feasibility evaluated using simulations of dynamic models. A dynamic modeling framework was used for the assessment of operational scenarios such as, fed-batch, continuous and continuous with recycle configurations......) operating in continuous mode with a recycle of the SSCF reactor effluent, results in the best productivity of bioethanol among the proposed process configurations, with a yield of 0.18 kg ethanol/kg dry-biomass....

  18. Integration and self regulation of quality management in Dutch agri-food supply chains : a cross-chain analysis of the poultry meat, the fruit and vegetable and the flower and potted plant chains

    NARCIS (Netherlands)

    Plaggenhoef, van W.

    2007-01-01

    Introduction During the last decade, concerns about quality and safety in agri-food supply chains have been raised. Several sector-wide crises, such as the BSE and the dioxin crises, classical swine fever and foot-and-mouth disease and Aviaire Influenza have fuelled these concerns. These conc

  19. Exploring Environmental-Economic Benefits from Agri-Industrial Diversification in the Sugar Industry: An Integrated Land Use and Value Chain Approach

    OpenAIRE

    Roebeling, Peter C.; Smith, D. Mark; van Grieken, Martijn

    2006-01-01

    The sugar industry in Queensland (Australia) is confronted with increasing economic pressure and environmental constraints. To explore whether agri-industrial diversification of the sugar industry provides a sustainable development pathway for the region, we develop a spatial environmental-economic approach that integrates a land use and value chain model with a hydrological model. Results indicate that agri-industrial diversification can lead to substantial increases in regional income, whil...

  20. Features of robust timing chain drives. Integration of experiment and dynamics simulation; Eigenschaften von robusten Steuerkettentrieben. Integration von Versuch und Dynamiksimulation

    Energy Technology Data Exchange (ETDEWEB)

    Sauer, B.; Nicola, A. [Technischen Univ. Kaiserslautern (DE). Lehrstuhl fuer Maschinenelemente und Getriebetechnik (MEGT); Flierl, R.; Weiske, S. [Lehrstuhl fuer Verbrennungskraftmaschinen (VKM) an der Technischen Univ. Kaiserslautern (Germany)

    2007-12-15

    In modern combustion engines, robust timing chain drives are used more and more as timing element. This article describes the testing possibilities for the investigation of timing chain drives and its components that are located at the University of Kaiserslautern, represented by the institutes for combustion engines and for machine elements, gears and transmissions. By a double track approach of experimental and parallel simulation investigations of components and entire system an improved forecast feasibility of the dynamic behaviour of timing chain drives is achieved. (orig.)

  1. Effect of the Quality Property of Table Grapes in Cold Chain Logistics-Integrated WSN and AOW

    OpenAIRE

    Xinqing Xiao; Xiang Wang; Xiaoshuan Zhang; Enxiu Chen; Jun Li

    2015-01-01

    Table grapes are very popular for their high nutritional and therapeutic value. The objective of this work was to study the effect of table grapes’ quality property in cold chain logistics for improving the transparency and traceability of table grapes’ cold chain logistics and ensuring the table grapes’ quality and safety. Temperature and relative humidity are monitored by adopting the wireless sensor network (WSN) as the fundamental network infrastructure and adaptive optimal weighted data ...

  2. An integrated supply chain model for new products with imprecise production and supply under scenario dependent fuzzy random demand

    Science.gov (United States)

    Nagar, Lokesh; Dutta, Pankaj; Jain, Karuna

    2014-05-01

    In the present day business scenario, instant changes in market demand, different source of materials and manufacturing technologies force many companies to change their supply chain planning in order to tackle the real-world uncertainty. The purpose of this paper is to develop a multi-objective two-stage stochastic programming supply chain model that incorporates imprecise production rate and supplier capacity under scenario dependent fuzzy random demand associated with new product supply chains. The objectives are to maximise the supply chain profit, achieve desired service level and minimise financial risk. The proposed model allows simultaneous determination of optimum supply chain design, procurement and production quantities across the different plants, and trade-offs between inventory and transportation modes for both inbound and outbound logistics. Analogous to chance constraints, we have used the possibility measure to quantify the demand uncertainties and the model is solved using fuzzy linear programming approach. An illustration is presented to demonstrate the effectiveness of the proposed model. Sensitivity analysis is performed for maximisation of the supply chain profit with respect to different confidence level of service, risk and possibility measure. It is found that when one considers the service level and risk as robustness measure the variability in profit reduces.

  3. Study of the system construction of the whole tourism value chain based on industry integration%基于产业融合的旅游全价值链体系构建研究

    Institute of Scientific and Technical Information of China (English)

    马勇; 陈慧英

    2012-01-01

    Industry integration has become a kind of tourism development trend, and at the same time, industrial integration is also an important way of the sustainable development of tourism innovation. The integration of tourism and other industries based on the whole tourism value chain will inject new vitality to tourism industry for the sustainable development. This article from the perspective of industry integration, studies of the nine elements of the whole tourism value chain, that is the resource integration value chain, the market integration value chain, the function integration value chain, the brand integration value chain, the cul- ture integration value chain, the motion integration value chain, the capital integration value chain, the technology integration value chain and human integration value chain. At last the article puts forward the system framework of the whole tourism value chain, which provides guidance for tourism development, positioning and value upgrade.%产业融合已成为旅游发展的一种必然趋势,也是旅游创新可持续发展的重要途径。而基于旅游全价值链的旅游业与其他产业进行融合,会给旅游可持续发展注入新的活力。文章从产业融合的视角切入,研究了旅游全价值链的九大构成要素,即资源融合价值链、市场融合价值链、功能融合价值链、品牌融合价值链、文化融合价值链、情感融合价值链、资金融合价值链、技术融合价值链、人才融合价值链。最后提出了基于产业融合的旅游全价值链体系,这将为我国旅游产业发展、定位与价值提升提供全新的理念指导。

  4. Integration and self regulation of quality management in Dutch agri-food supply chains : a cross-chain analysis of the poultry meat, the fruit and vegetable and the flower and potted plant chains

    OpenAIRE

    Plaggenhoef, van, W.

    2007-01-01

    Introduction During the last decade, concerns about quality and safety in agri-food supply chains have been raised. Several sector-wide crises, such as the BSE and the dioxin crises, classical swine fever and foot-and-mouth disease and Aviaire Influenza have fuelled these concerns. These concerns may not only be limited to safety and quality issues, but also important ethical concerns are raised, for example, concerning preventive slaughtering of animals. Due to all this attention, consumers ...

  5. Effect of the Quality Property of Table Grapes in Cold Chain Logistics-Integrated WSN and AOW

    Directory of Open Access Journals (Sweden)

    Xinqing Xiao

    2015-10-01

    Full Text Available Table grapes are very popular for their high nutritional and therapeutic value. The objective of this work was to study the effect of table grapes’ quality property in cold chain logistics for improving the transparency and traceability of table grapes’ cold chain logistics and ensuring the table grapes’ quality and safety. Temperature and relative humidity are monitored by adopting the wireless sensor network (WSN as the fundamental network infrastructure and adaptive optimal weighted data fusion (AOW for the adaptive data fusion. The cold chain process, firmness quality and adaptive data fusion of temperature and relative humidity were evaluated in an actual cold chain logistics. The results indicate that the WSN and AOW methods could effectively reflect the real-time temperature and relative humidity information and quality property, improve the transparency and traceability in the cold chain and ensure the preservation of the quality and safety of table grapes. The AOW performance analysis shows that the AOW, whose mean absolute error and mean relative error of the temperature data are 0.06 °C and 8.61% and relative humidity data are 0.12% and 0.23%, respectively, could fuse the sensor data accurately, efficiently and adaptively and meet the actual application requirements.

  6. Towards the Integration between IoT and Cloud Computing: An Approach for the Secure Self-Configuration of Embedded Devices

    OpenAIRE

    Antonio Puliafito; Antonio Celesti; Massimo Villari; Maria Fazio

    2015-01-01

    The secure boot-up and setup of Internet of Things (IoT) devices connected over the Cloud represent a challenging open issue. This paper deals with the automatic configuration of IoT devices in a secure way through the Cloud, in order to provide new added-value services. After a discussion on the limits of current IoT and Cloud solutions in terms of secure self-configuration, we present a Cloud-based architecture that allows IoT devices to interact with several federated Cloud providers. In p...

  7. Integrating a Discovery-Based Laboratory to Teach Supply Chain Management Fundamentals in an Undergraduate Management Course

    Science.gov (United States)

    Zeng, Amy; Johnson, Sharon

    2009-01-01

    Using experiential simulation games is a commonly used pedagogical method to enrich classroom discussions and to facilitate students' learning in supply chain management education at both undergraduate and graduate levels. However, existing games are inappropriate for undergraduate students that are first-time learners of the subject. In this…

  8. Integrating ecosystem services into the tropical timber value chain : Dutch policy options from an innovation system approach

    NARCIS (Netherlands)

    Berg, van den J.; Ingram, V.J.; Bogaardt, M.J.; Harms, B.

    2013-01-01

    This WOt Working document explores the governance options available to the Dutch government for the promotion of the sustainable use and maintenance of ecosystem services in tropical timber value chains with Dutch links and how ecosystem services can be given a more explicit place in the public and

  9. Technology Integration to Business Focusing on RFID, Interoperability, and Sustainability for Manufacturing, Logistics, and Supply Chain Management

    CERN Document Server

    Yee, John T

    2013-01-01

    Today’s global business environments drive companies to be more dependent on technology, and to remain competitive, firms will face situations in which they will need to introduce or adopt a new technology to their business. In order to achieve a successful integration with maximum return on investment, companies need a systematic approach that accommodates acomprehensive course of action of technology integration. Technology Integration to Business suggests a business-driven holistic approach of technology integration that consists of several steps. First, companies should examine the current state, issues, benefits, and obstacles of technology integration in conjunction with their competitive business strategy and operational capability. Second, firms should investigate new, emerging business technologies as to how those technologies can contribute to improve the business. Third, with the technology integration needs identified, companies should complete preparatory tasks before actual implementation, su...

  10. Integrated Operation Framework Model of Construction Supply Chain%工程项目供应链整合管理运作框架模型

    Institute of Scientific and Technical Information of China (English)

    白玉; 陈建华

    2011-01-01

    通过分析工程项目管理的不同模式,同时结合国内外建筑行业的市场环境、管理体制的差异性,分别从实体层次、基本要素架构和框架模型以及运作基本思想三个方面探究工程项目供应链整合及其管理运作问题.首先提出了核心层、中间层和外围层是工程项目供应链整合的三个基本实体层次;其次从项目"三全"角度出发,基于三个基本实体层次分析了工程项目供应链整合的基本要素作为框架模型的基础;再次具体分析工程项目供应链整合管理运作层次的螺旋式推进过程特征、供应链整合管理运作的阶段性特征以及三个基本实体之间的不同整合水平,剖析了工程项目供应链整合框架的基本环节和过程,最终构建了工程项目供应链整合管理运作的框架模型,并说明该模型运转的基本思想.%The supply chain integration and its management operational issues were explored by analyzing the different models of project management, combined with domestic and international market environment for the construction industry, the management system differences.The work was studied from three aspects of the physical level, the basic elements of architecture and framework of the model and the basic idea of the operation of the project, respectively.Firstly, basic organizational relationship levels consisting of the core level, the mid-level and the outer level of the supply chain integration of construction were presented from project life cycle perspective.From perspective of project total life cycle and total system and total process, an integrated element framework of the management on the supply chain integration was proposed.Considering different organizational relationship levels and integration levels, based on the strategic stages characteristics of the supply chain integration, step-up relations and the spire advancing process of integrated elements in operational level, a basic

  11. SAMI Automated Plug Plate Configuration

    CERN Document Server

    Lorente, Nuria P F; Goodwin, Michael

    2012-01-01

    The Sydney-AAO Multi-object Integral field spectrograph (SAMI) is a prototype wide-field system at the Anglo-Australian Telescope (AAT) which uses a plug-plate to mount its 13 x 61-core imaging fibre bundles (hexabundles) in the optical path at the telescope's prime focus. In this paper we describe the process of determining the positions of the plug-plate holes, where plates contain three or more stacked observation configurations. The process, which up until now has involved several separate processes and has required significant manual configuration and checking, is now being automated to increase efficiency and reduce error. This is carried out by means of a thin Java controller layer which drives the configuration cycle. This layer controls the user interface and the C++ algorithm layer where the plate configuration and optimisation is carried out. Additionally, through the Aladin display package, it provides visualisation and facilitates user verification of the resulting plates.

  12. Are Co-operatives a Way to Integrate Small Farmers in Supply Chain Networks? Preliminary Thoughts on Hungary

    OpenAIRE

    Hanf, Jon H.; Török, Timea

    2009-01-01

    Vertical coordination in agri-food chains is a significant and increasing phenomenon in Central and Eastern European Countries (CEEC). It has been observed that this development prefers large scale production. However, the agricultural sector is still a mixture of small scale and large scale farming in these countries. Hence, for small scale farmers, horizontal collaboration can be assumed to be a prerequisite for remaining in the market. Therefore, the goal of this paper is to investigate wh...

  13. Calibration chain design based on integrating sphere transfer radiometer for SI-traceable on-orbit spectral radiometric calibration and its uncertainty analysis

    Science.gov (United States)

    Zhao, Wei-Ning; Fang, Wei; Sun, Li-Wei; Cui, Li-Hong; Wang, Yu-Peng

    2016-09-01

    In order to satisfy the requirement of SI-traceable on-orbit absolute radiation calibration transfer with high accuracy for satellite remote sensors, a transfer chain consisting of a fiber coupling monochromator (FBM) and an integrating sphere transfer radiometer (ISTR) was designed in this paper. Depending on the Sun, this chain based on detectors provides precise spectral radiometric calibration and measurement to spectrometers in the reflective solar band (RSB) covering 300-2500 nm with a spectral bandwidth of 0.5-6 nm. It shortens the traditional chain based on lamp source and reduces the calibration uncertainty from 5% to 0.5% by using the cryogenic radiometer in space as a radiometric benchmark and trap detectors as secondary standard. This paper also gives a detailed uncertainty budget with reasonable distribution of each impact factor, including the weak spectral signal measurement with uncertainty of 0.28%. According to the peculiar design and comprehensive uncertainty analysis, it illustrates that the spectral radiance measurement uncertainty of the ISTR system can reach to 0.48%. The result satisfies the requirements of SI-traceable on-orbit calibration and has wider significance for expanding the application of the remote sensing data with high-quality. Project supported by the National Natural Science Foundation of China (Grant No. 41474161) and the National High-Technology Program of China (Grant No. 2015AA123703).

  14. Research on the Port Logistics Services Supply Chain Integration System%集成化的港口物流服务供应链体系研究

    Institute of Scientific and Technical Information of China (English)

    屈莉莉; 陈燕

    2014-01-01

    Port is the hub and important node in international logistics transport network.The concepts are proposed,such as the fourth generation port,port modern logistics and port services supply chain,as well as the link between them.The port logistics services supply chain characteristics is discussed.Integration port logistics services supply chain can improve the value-added service and management capabilities.%港口是国际网络化物流运输的枢纽和重要节点,文中系统研究了第四代港口、港口现代物流和港口服务供应链等相关理论。根据现代物流理念提出港口物流服务供应链的特征。建立集成化的港口物流服务供应链体系构建模式。对于提高港口物流服务供应链网络的增值服务能力和管理运作水平具有重要的研究意义。

  15. 一种可配置的虚拟机启动完整性维护的方法%A Configurable Method for Virtual Machine Startup Integrity Maintenance

    Institute of Scientific and Technical Information of China (English)

    鄢斌

    2015-01-01

    Based on the virtualized environment architecture and the startup process of virtual machine ,a configurable method for virtual machine startup integrity maintenance is proposed .In the method ,important system and user‐specific pro‐grams and files are prestored ,measured and restored ,which not only guarantees the integrity and reliability of the virtual machine startup process ,but also enhances the configurability of virtual machine integrity maintenance .%针对虚拟化环境自身体系结构和虚拟机启动过程的特点,提出一种用户可配置的保护和恢复虚拟机启动过程中系统和用户自定义程序/文件的方法,完成对这些程序/文件的完整性备份、检测和恢复,在保证虚拟机启动过程可靠性和安全性的同时,增强虚拟机启动完整性管理的可维护性和可扩展性。

  16. Conceptualizing Embedded Configuration

    DEFF Research Database (Denmark)

    Oddsson, Gudmundur Valur; Hvam, Lars; Lysgaard, Ole

    2006-01-01

    configuration systems. That will include requirements to product modelling techniques. An example with consumer electronics will illuminate the elements of embedded configuration in settings that most can relate to. The question of where embedded configuration would be relevant is discussed, and the current...... and services. The general idea can be named embedded configuration. In this article we intend to conceptualize embedded configuration, what it is and is not. The difference between embedded configuration, sales configuration and embedded software is explained. We will look at what is needed to make embedded...

  17. Requirements of supply chain management in differentiating European pork chains.

    Science.gov (United States)

    Trienekens, Jacques; Wognum, Nel

    2013-11-01

    This paper summarizes results obtained by research into pork chain management in the EU Integrated Project Q-Porkchains. Changing demands for intrinsic and extrinsic quality attributes of pork products impact the way supply chain management should be organized from the farmer down to the consumer. The paper shows the importance of Quality Management Systems for integrating supply chains and enhancing consumer confidence. The paper also presents innovations in information system integration for aligning information exchange in the supply chain and logistics concepts based on innovative measurement technologies at the slaughterhouse stage. In the final section research challenges towards sustainable pork supply chains satisfying current consumer demands are presented. PMID:23611335

  18. Requirements of supply chain management in differentiating European pork chains.

    Science.gov (United States)

    Trienekens, Jacques; Wognum, Nel

    2013-11-01

    This paper summarizes results obtained by research into pork chain management in the EU Integrated Project Q-Porkchains. Changing demands for intrinsic and extrinsic quality attributes of pork products impact the way supply chain management should be organized from the farmer down to the consumer. The paper shows the importance of Quality Management Systems for integrating supply chains and enhancing consumer confidence. The paper also presents innovations in information system integration for aligning information exchange in the supply chain and logistics concepts based on innovative measurement technologies at the slaughterhouse stage. In the final section research challenges towards sustainable pork supply chains satisfying current consumer demands are presented.

  19. Método integral configurable y flexible de ensayo de materiales consumibles de soldadura por arco eléctrico. // Integral, flexible and shaped method for electric arc welding consumable materials test.

    Directory of Open Access Journals (Sweden)

    A. García Rodríguez

    2005-05-01

    Full Text Available La presente publicación propone un método integral configurable y flexible para facilitar el ensayo de materialesconsumibles de soldadura por arco eléctrico en las condiciones tecnológicas para las que han sido diseñados estosmateriales, en relación a la calidad de la unión soldada. Se puede llegar a conclusiones definitivas sobre la calidad de lasoldadura usando un determinado material consumible mediante: la relación operacional de técnicas de inteligencia naturaly/o artificial, el uso de sistemas expertos, el trabajo con bases de datos, la simulación y la realización práctica del procesomientras se registran ciertos parámetros del arco eléctrico, digitalmente procesados estadísticamente y relacionados a losresultados de la caracterización de la unión soldada. El método permite registrar adecuadamente la información referente acada aspecto del proceso exigida en los procesos de certificación de la calidad de los consumibles, así como en lainvestigación dirigida a optimizar la composición química y las propiedades físicas de un material, para obtener calidadesóptimas en un determinado proceso; además es posible obtener las bases de datos de parámetros del arco eléctrico útilespara investigar, desarrollar y valorar métodos y algoritmos para el monitoreo en tiempo real de la calidad de la soldaduradurante un determinado proceso tecnológico de soldadura con arco eléctrico.Palabras Clave: Ensayo, materiales, soldadura, arco eléctrico, estabilidad, calidad, simulación, optimización,unión soldada.___________________________________________________________________________Abstract.This paper presenst an integral, flexible and shaped method that make easy the electric arc welding consumable materials test at thedesigned technological conditions, related to the quality of the welding joint. It is possible to arrive to definitive conclusions about thewelding quality using a fixed material through: operational

  20. STABILITY OF MANIPULATOR CONFIGURATION UNDER EXTERNAL LOADING

    OpenAIRE

    Klimchik, Alexandr; Pashkevich, Anatol; Chablat, Damien

    2012-01-01

    The paper is devoted to the analysis of robotic manipulator behavior under internal and external loadings. The main contributions are in the area of stability analysis of manipulator configurations corresponding to the loaded static equilibrium. In contrast to other works, in addition to usually studied the end-platform behavior with respect to the disturbance forces, the problem of configuration stability for each kinematic chain is considered. The proposed approach extends the classical not...

  1. Techno-economic analysis of biofuel production considering logistic configurations.

    Science.gov (United States)

    Li, Qi; Hu, Guiping

    2016-04-01

    In the study, a techno-economic analysis method considering logistic configurations is proposed. The economic feasibility of a low temperature biomass gasification pathway and an integrated pathway with fast pyrolysis and bio-oil gasification are evaluated and compared with the proposed method in Iowa. The results show that both pathways are profitable, biomass gasification pathway could achieve an Internal Rate of Return (IRR) of 10.00% by building a single biorefinery and integrated bio-oil gasification pathway could achieve an IRR of 3.32% by applying decentralized supply chain structure. A Monte-Carlo simulation considering interactions among parameters is also proposed and conducted, which indicates that both pathways are at high risk currently. PMID:26859327

  2. Ecolifter Conceptual Configuration Design and Parameter Analysis

    Institute of Scientific and Technical Information of China (English)

    唐胜景

    2003-01-01

    In the phase of conceptually designing, the Ecolifter with three-lift-surface configuration, the influences of aircraft geometric parameters and configuration such as wing geometric parameters, canard parameters, aircraft center of gravity and engine positions and so on, on flight dynamic stability are discussed with the integrated analysis method. On the basis of the analysis of flight dynamic stability, the suitable wing geometric parameters are given and the improved aircraft configuration is proposed.

  3. The Problems in Optimization and Integration of Pharmaceutical Supply Chains%医药供应链优化整合问题研究

    Institute of Scientific and Technical Information of China (English)

    孙飞

    2013-01-01

    随着新医改深入推进,药品流通行业迎来新一轮的整合发展。医药供应链面临着国际国内市场竞争加剧、成本高效率低、运营风险增加和药品流通管制制度效率低下等一系列问题。研究表明:医药供应链的优化整合应遵循药品流通的特殊性、平衡经济效益和社会效益、注重与药品流通管制制度相协同等原则。在医药供应链整合的策略上应做好以下五个方面的工作:以药品需求特性为基础对供应链进行分类,通过有效激励促进知识共享与合作,推进信息技术和现代物流技术升级,构建敏捷性供应链支撑药品需求管理以及通过业务流程再造与创建风险管理文化等来规避运营风险。%With the promotion of new medical reform , there are great opportunities for the development of pharmaceutical circulation industry .Pharmaceutical supply chains are challenged by fierce competition from overseas and domestic , increasing circulation cost , low circulation efficiency , high risk of supply chain operation , and poor efficiency in regulation .Our research indicates the optimization and integration of pharmaceutical supply chains should conform to the principles related to specificity of pharmaceutical circulation , balanced economic profit and social benefit , and coordination in regulation .The following five as-pects on strategies should be focused , namely demand-based supply chains sassortment, knowledge sharing and cooperation via ef-fective incentives, promotion in information technology and modern logistics technology , supporting management on pharmaceutical demand by building agile supply chain, and avoiding risk of operation by business process reengineering and risk management .

  4. FUNCIONALIDADES DE SISTEMAS DE PLANIFICACIÓN DE RECURSOS EMPRESARIALES PARA CADENAS DE SUMINISTRO / FUNCTIONALITIES OF ENTERPRISE RESOURCE PLANNING SYSTEMS FOR SUPPLY CHAIN INTEGRATION

    Directory of Open Access Journals (Sweden)

    Dania Pérez-Armayor

    2013-05-01

    Full Text Available En la actualidad los sistemas de planificación de recursos empresariales, además de facilitar las relaciones y la eficiencia intra-empresarial, incluyen elementos para viabilizar la colaboración entre empresas, como respuesta a la necesidad de las organizaciones de agruparse en cadenas de suministro. En consecuencia, el Ministerio de la Informática y las Comunicaciones, junto a otras organizaciones cubanas, están proyectando el desarrollo de un sistema de planificación de recursos empresariales desarrollado en el país (Sistema Cedrux, incluyendo funcionalidades que soporten la integración de cadenas de suministro. Este trabajo se centra en el análisis de funcionalidades que debe poseer el Sistema Cedrux para facilitar una gestión de la cadena de suministro exitosa. Para complementar este análisis fueron realizadas búsquedas bibliográficas y entrevistas a personal participante en el desarrollo de Cedrux. Como resultado se propone la configuración de los módulos acorde al rol de la empresa en la cadena, incluyendo módulos de gestión de cadenas de suministroAbstractNowadays, enterprise resource planning systems (ERP systems, in addition to help improving the relations and the intra-enterprise efficiency, include elements that facilitate inter-enterprise cooperation in response to the need for organizations to come together in supply chains. As a consequence, the Ministry of Informatics and Communications, along with other Cuban organizations, are planning the development of an ERP system developed in Cuba (named Cedrux system, which includes functionalities that support the integration of supply chains. This paper aims to analyze the functionalities that Cedrux should have in order to support a successful supply chain management. Bibliographic searches and interviews to Cedrux developers were conducted, in order to complement this analysis. As a result is suggested the inclusion of modules for supply chain management and the

  5. Operads, configuration spaces and quantization

    CERN Document Server

    Merkulov, S A

    2010-01-01

    We review several well-known operads of compactified configuration spaces and construct several new such operads, C, in the category of smooth manifolds with corners whose complexes of fundamental chains give us (i) the 2-coloured operad of A-infinity algebras and their homotopy morphisms, (ii) the 2-coloured operad of L-infinity algebras and their homotopy morphisms, and (iii) the 4-coloured operad of open-closed homotopy algebras and their homotopy morphisms. Two gadgets - a (coloured) operad of Feynman graphs and a de Rham field theory on C - are introduced and used to construct quantized representations of the (fundamental) chain operad of C which are given by Feynman type sums over graphs and depend on choices of propagators. A theorem on homotopy (in)equivalence of Kontsevich's deformation quantizations is proved.

  6. Indicadores-chave de desempenho e a gestão integrada da mineração Key performance indicators and the mineral value chain integration

    Directory of Open Access Journals (Sweden)

    Beck Nader

    2012-12-01

    Full Text Available O rápido avanço da tecnologia da informação e da aplicação de computadores ao setor mineral permitiu a automatização de vários processos da cadeia de valor mineral. Os sistemas ERP (Enterprise Resource Planning forneceram a plataforma para a integração eficiente de todas as atividades de suporte da mineração. Apesar do avanço obtido com a aplicação dos computadores, não se conseguiu, até o presente momento, integrar, efetivamente, as atividades primárias da cadeia de valor mineral. A principal razão, para isso, são as incertezas existentes no processo produtivo, que são intrínsecas ao negócio, e a dificuldade de se quantificarem e qualificarem os benefícios advindos de tal integração, isto por não existir uma definição clara dos indicadores-chave de desempenho (KPIs. Esse trabalho apresenta uma análise da aplicação de sistemas ERP, na mineração do Brasil, identifica os KPIs mais importantes utilizados em empresas de mineração e discute a importância de seu mapeamento e medição para a gestão efetiva do negócio "Mineração".The exceptional advance of information technology and computer application to the mineral sector has allowed the automation of several processes of the mineral value chain. ERP systems (Enterprise Resource Planning provided the platform for the efficient integration of all support activities of the mineral value chain. Despite all advances gathered with the application of computers, it was not possible to date, to effectively integrate the primary activities of the mineral value chain. The main reason for that are the uncertainties present in the productive process, which are intrinsic to the business, and the difficulty to quantify and qualify the benefits obtained with this integration due to the lack of a clear definition of the key performance indicators (KPIs. This work presents an analysis of the ERP systems application in Brazilian mining, identifies the KPIs of some of the most

  7. Life Cycle Assessment of Peach Nectar: a comparative analysis between conventional and bioenergy-from-waste integrated food chains

    OpenAIRE

    Menna, Fabio

    2013-01-01

    Modern food systems are characterized by a high energy intensity as well as by the production of large amounts of waste, residuals and food losses. This inefficiency presents major consequences, in terms of GHG emissions, waste disposal, and natural resource depletion. The research hypothesis is that residual biomass material could contribute to the energetic needs of food systems, if recovered as an integrated renewable energy source (RES), leading to a sensitive reduction of the impact...

  8. B2B Marketers Integrate Precision Search to Boost Profitability and Increase Satisfaction Across the eCommerce Value Chain

    OpenAIRE

    Dr. Larry R. Harris

    2005-01-01

    This article will describe the central role that site search and navigation plays in B2B eCommerce, as well as the defining characteristics of a successful search implementation from both a technical and marketing perspective. This article will also outline how integrating precision search into an existing eCommerce infrastructure can result in higher productivity, streamlined processes, increased conversion rates, greater commercial buyer and partner satisfaction, and higher profits per tran...

  9. B2B Marketers Integrate Precision Search to Boost Profitability and Increase Satisfaction Across the eCommerce Value Chain

    Directory of Open Access Journals (Sweden)

    Dr. Larry R. Harris

    2005-01-01

    Full Text Available This article will describe the central role that site search and navigation plays in B2B eCommerce, as well as the defining characteristics of a successful search implementation from both a technical and marketing perspective. This article will also outline how integrating precision search into an existing eCommerce infrastructure can result in higher productivity, streamlined processes, increased conversion rates, greater commercial buyer and partner satisfaction, and higher profits per transaction.

  10. A unix configuration engine

    International Nuclear Information System (INIS)

    A high level description language is presented for the purpose of automatically configuring large heterogeneous networked unix environments, based on class-oriented abstractions. The configuration engine is portable and easily extensible

  11. Highly flexible nearest-neighbor-search associative memory with integrated k nearest neighbor classifier, configurable parallelism and dual-storage space

    Science.gov (United States)

    An, Fengwei; Mihara, Keisuke; Yamasaki, Shogo; Chen, Lei; Jürgen Mattausch, Hans

    2016-04-01

    VLSI-implementations are often applied to solve the high computational cost of pattern matching but have usually low flexibility for satisfying different target applications. In this paper, a digital word-parallel associative memory architecture for k nearest neighbor (KNN) search, which is one of the most basic algorithms in pattern recognition, is reported applying the squared Euclidean distance measure. The reported architecture features reconfigurable parallelism, dual-storage space to achieve a flexible number of reference vectors, and a dedicated majority vote circuit. Programmable switching circuits, located between vector components, enable scalability of the searching parallelism by configuring the reference feature-vector dimensionality. A pipelined storage with dual static-random-access-memory (SRAM) cells for each unit and an intermediate winner control circuit are designed to extend the applicability by improving the flexibility of the reference storage. A test chip in 180 nm CMOS technology, which has 32 rows, 4 elements in each row and 2-parallel 8-bit dual-components in each element, consumes altogether 61.4 mW and in particular only 11.9 mW during the reconfigurable KNN classification (at 45.58 MHz and 1.8 V).

  12. Automation and integration of polymerase chain reaction with capillary electrophoresis for high throughput genotyping and disease diagnosis

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, N.

    1999-02-12

    Genotyping is to detect specific loci in the human genome. These loci provide important information for forensic testing, construction of genetic linkage maps, gene related disease diagnosis and pharmacogenetic research. Genotyping is becoming more and more popular after these loci can be easily amplified by polymerase chain reaction (PCR). Capillary electrophoresis has its unique advantages for DNA analysis due to its fast heat dissipation and ease of automation. Four projects are described in which genotyping is performed by capillary electrophoresis emphasizing different aspects. First, the author demonstrates a principle to determine the genotype based on capillary electrophoresis system. VNTR polymorphism in the human D1S80 locus was studied. Second, the separation of four short tandem repeat (STR) loci vWF, THO1, TPOX and CSF1PO (CTTv) by using poly(ethylene oxide) (PEO) was studied in achieving high resolution and preventing rehybridization of the DNA fragments. Separation under denaturing, non-denaturing conditions and at elevated temperature was discussed. Third, a 250 {micro}m i.d., 365 {micro}m o.d. fused silica capillary was used as the microreactor for PCR. Fourth, direct PCR from blood was studied to simplify the sample preparation for genotyping to minimum.

  13. Kaleidoscopical configurations in groups

    Directory of Open Access Journals (Sweden)

    I. V. Protasov

    2011-11-01

    Full Text Available A subset A of a group G is called a kaleidoscopical configuration if there exists a surjective coloring χ:X→κ such that the restriction χ|gA is a bijection for each g∈G . We give two topological constructions of kaleidoscopical configurations and show that each infinite subset of an Abelian group contains an infinite kaleidoscopical configuration.

  14. Flexible Management Integration for Supply Chain Strategic Alliance%浅析供应链战略联盟柔性战略管理一体化

    Institute of Scientific and Technical Information of China (English)

    陈扬

    2012-01-01

    The paper describes obstacles in the operational process of the supply chain strategic alliance, analyzes the most critical factors in its strategic management, namely, environment, executor and process, establishes the support system and management framework for the flexible management integration for the supply chain strategic alliance and introduces the process of its implementation.%通过对现阶段供应链战略联盟运营过程中存在的障碍进行描述,重点分析了影响供应链战略联盟进行战略管理的最重要的三个因素-环境、执行者和流程,从而构建供应链战略联盟柔性战略管理一体化的支撑体系、管理框架,并详细阐述了该一体化体系的实施过程.

  15. 易变质商品供应链合同研究%Study on Perishable Goods Supply Chain Integrated Inventory Management Model

    Institute of Scientific and Technical Information of China (English)

    刘建

    2013-01-01

    In this paper,we studied a two-echelon supply chain inventory system consisting of a retailer and a supplier.Under the assumption of a fuzzy demand,we established the supplier's optimal inventory policy under the decision of the retailer.Then we studied the two-echelon supply chain' s integrated inventory management model and gave out a solution method.Finally,we used a numerical example to illustrate the validity of the model,and analyzed the impact of the deterioration ration to the inventory costs.%以一个零售商和一个供应商组成的两级供应链库存系统为研究对象,在模糊需求假设条件下,建立了供应商在零售商已做决策的条件下的最优库存策略.随后研究了供应链集成库存管理模型,并给出模型的求解步骤.最后通过算例说明供应链集成库存管理能有效的减少库存总成本,并分析了变质率对零售商和供应商订货周期以及变质率对各成本的影响.

  16. The Role of Third Party Logistics in Supply Chain Integration%第三方物流在供应链整合中的作用

    Institute of Scientific and Technical Information of China (English)

    张珈源

    2013-01-01

    With the development of economic globalization and increasing changes in market, supply chain competition between enter-prises is becoming more important and its integration becomes a trend, which is a source of sustainable profits and a chal enge to its management. Third-party logistics has becomean effective way for its unique independence andspecialization. The essay through the problem ofsupply chainintegration in ourcountry, telsin detailtherole ofthird-party logisticsin the integrationprocess ofsupply chain.%随着经济全球化的发展和市场变化日益加快,企业之间的竞争正日趋演变为供应链与供应链之间的角逐,供应链整合成为趋势。第三方物流以其自身特有的独立化、专业化优势,成为促进供应链整合、提高供应链物流运作效率的一种有效方式。文章通过我国供应链整合存在的问题,分析了第三方物流在供应链整合过程中的作用。

  17. Auralization of novel aircraft configurations

    OpenAIRE

    Arntzen, M.; Bertsch, E.L.; Simons, D.G.

    2015-01-01

    A joint initiative of NLR, DLR, and TU Delft has been initiated to streamline the process of generating audible impressions of novel aircraft configurations. The integrated approach adds to the value of the individual tools and allows predicting the sound of future aircraft before they actually fly. Hence, an existing process for the aircraft design and system noise prediction at DLR has been upgraded to generate the required input data for an aircraft auralization framework developed by NLR ...

  18. HLT configuration management system

    CERN Document Server

    Daponte, Vincenzo

    2015-01-01

    The CMS High Level Trigger (HLT) is implemented running a streamlined version of the CMS offline reconstruction software running on thousands of CPUs. The CMS software is written mostly in C++, using Python as its configuration language through an embedded CPython interpreter. The configuration of each process is made up of hundreds of modules, organized in sequences and paths. As an example, the HLT configurations used for 2011 data taking comprised over 2200 different modules, organized in more than 400 independent trigger paths. The complexity of the HLT configurations and the large number of configuration produced require the design of a suitable data management system. The present work describes the designed solution to manage the considerable number of configurations developed and to assist the editing of new configurations. The system is required to be remotely accessible and OS-independent as well as easly maintainable easy to use. To meet these requirements a three-layers architecture has been choose...

  19. THE SPATIAL DISTRIBUTION AND MOMENTS OF CIRCULAR FREELY JOINTED CHAIN

    Institute of Scientific and Technical Information of China (English)

    HAO Minghong

    1991-01-01

    The spatial distribution function and second moments of circular freely jointed chain are derived based on an analytical method. The circular Gauss chain, which is simple for long chains, is compared with the circular freely jointed chain, which is exact for short chains. It is shown that the Gauss chain model predicts a more compact configurational distribution than the exact freely jointed chain. The two chain models, however, become closer to each other when the chain length increases.It is found that the difference of the mean square radius of gyration calculated with these two chain models is a constant, independent of the chain length.

  20. An integrated supply chain inventory model with imperfect-quality items, controllable lead time and distribution-free demand

    Directory of Open Access Journals (Sweden)

    Lin Hsien-Jen

    2013-01-01

    Full Text Available In this paper, we consider an integrated vendor-buyer inventory policy for a continuous review model with a random number of defective items and screening process gradually at a fixed screening rate in buyer’s arriving order lot. We assume that shortages are allowed and partially backlogged on the buyer’s side, and that the lead time demand distribution is unknown, except its first two moments. The objective is to apply the minmax distribution free approach to determine the optimal order quantity, reorder point, lead time and the number of lots delivered in one production run simultaneously so that the expected total system cost is minimized. Numerical experiments along with sensitivity analysis were performed to illustrate the effects of parameters on the decision and the total system cost.

  1. Risk Management in Logystics Chains

    OpenAIRE

    Butrin, Andrey; Vikulov, Vladimir

    2013-01-01

    Article is devoted to risk management of supply chain. The authors considered indicators of supply chain risks, including risks caused by supplier. Authors formed a method of optimizing the level of supply chain risk in the integration with suppliers and customers.

  2. Sustainable Supply Chain Design

    DEFF Research Database (Denmark)

    Bals, Lydia; Tate, Wendy

    A significant conceptual and practical challenge is how to integrate triple bottom line (TBL; including economic, social and environmental) sustainability into global supply chains. Although this integration is necessary to slow down global resource depletion, understanding is limited of how to i...

  3. 中国制造企业供应链整合与企业绩效的关系研究%The Relationship between Supply Chain Integration and Firm Performance for Chinese Manufacturers

    Institute of Scientific and Technical Information of China (English)

    赵丽; 孙林岩; 李刚; 杨洪焦

    2011-01-01

    本文旨在研究探讨供应链整合、企业运作绩效及财务绩效之间的关系,揭示供应链整合通过供应商运作绩效及客户服务绩效影响财务绩效的作用机理.利用139份制造企业的样本,本文采用多元线性回归及中介效应检验方法对假设进行验证.实证研究结果表明:供应商整合对供应商运作绩效有显著的正向影响,内部整合及客户整合时客户服务绩效的提升有显著的推动作用;企业财务绩效的提升主要基于客户服务绩效的提升.同时,供应商整合、内部整合及客户整合对财务绩效的影响皆通过供应商运作绩效及客户服务绩效的提升来实现,其中,供应商运作绩效为部分中介变量,而客户服务绩效为完全中介变量.%Manufacturers in China are facing global competition, shortening product life cycle, customized demand, and rapid increase in labor and material costs. Supply chain integration is an effective supply chain management strategy for Chinese manufacturers to gain competitiveness. Current literature on the relationship between supply chain integration and firm performance is not conclusive, and American companies have been the main focus. Our study aims to investigate the relationship between supply chain integration and performance for Chinese manufacturers.This study reviews literature on supply chain integration, and propose a conceptual model to help understand the relationship between supply chain integration and firm performance. Supply chain integration includes supplier integration, internal integration and customer integration. Firm performance consists of operational performance and financial performance. We use our proposed model to investigate operational performance from the perspectives of supplier and customer. Our findings show that supplier integration, internal integration and customer integration have positive effect on the improvement of supplier's operational performance and

  4. 供应链一体化背景下的物流管理模式分析%Analysis of Logistics Management Modes in Environment of Supply Chain Integration

    Institute of Scientific and Technical Information of China (English)

    李一辉

    2012-01-01

    In this paper, we introduced the connotation of supply chain integration and logistics management and discussed the characteristics of logistics management in the environment of supply chain integration as well as how to establish ascientific and effective logistics management system.%论述了供应链一体化与物流管理的内涵,从供应链一体化的背景出发,探讨在新时期新情况下物流管理的特征以及如何构建科学有效的物流管理体系.

  5. Development of plasmids for quantitative detection of integrated lentiviral vectors and evaluation of culture time to perform vector titer by real-time quantitative polymerase chain reaction assay

    Directory of Open Access Journals (Sweden)

    Elena Baiamonte

    2014-09-01

    Full Text Available The accurate assessment of provirus copy number per cell (VCN/cell is a fundamental issue in transgenesis as well as in gene therapy studies based on stably integrated vectors. To this end, real-time quantitative polymerase chain reaction (qPCR is a powerful method but it is sensible to differences in quality or concentration of the two-plasmid preparations used for the construction of the standard curves. In order to minimize technical errors we included genome specific sequences (mouse or human and vector specific sequences in the same plasmid. We evaluated the specificity and sensitivity of these bivalent plasmids by qPCR analysis on mouse and human genomic DNA containing a known number of a reporter lentiviral vector and we found that the system is reliable to measure up to 0.1 VCN/cell. Here we have applied this assay to measure vector titer of virus stock preparations and to determine the optimal cell passages at which viral titration effectively reflects the number of integrated vectors.

  6. Nash and integrated solutions in a just-in-time seller-buyer supply chain with buyer's ordering cost reductions

    Science.gov (United States)

    Lou, Kuo-Ren; Wang, Lu

    2016-05-01

    The seller frequently offers the buyer trade credit to settle the purchase amount. From the seller's prospective, granting trade credit increases not only the opportunity cost (i.e., the interest loss on the buyer's purchase amount during the credit period) but also the default risk (i.e., the rate that the buyer will be unable to pay off his/her debt obligations). On the other hand, granting trade credit increases sales volume and revenue. Consequently, trade credit is an important strategy to increase seller's profitability. In this paper, we assume that the seller uses trade credit and number of shipments in a production run as decision variables to maximise his/her profit, while the buyer determines his/her replenishment cycle time and capital investment as decision variables to reduce his/her ordering cost and achieve his/her maximum profit. We then derive non-cooperative Nash solution and cooperative integrated solution in a just-in-time inventory system, in which granting trade credit increases not only the demand but also the opportunity cost and default risk, and the relationship between the capital investment and the ordering cost reduction is logarithmic. Then, we use a software to solve and compare these two distinct solutions. Finally, we use sensitivity analysis to obtain some managerial insights.

  7. Integrated Supply Chain Cooperative Inventory Model with Payment Period Being Dependent on Purchasing Price under Defective Rate Condition

    Directory of Open Access Journals (Sweden)

    Ming-Feng Yang

    2015-01-01

    Full Text Available In most commercial transactions, the buyer and vendor may usually agree to postpone payment deadline. During such delayed period, the buyer is entitled to keep the products without having to pay the sale price. However, the vendor usually hopes to receive full payment as soon as possible, especially when the transaction involves valuable items; yet, the buyer would offer a higher purchasing price in exchange of a longer postponement. Therefore, we assumed such permissible delayed period is dependent on the purchasing price. As for the manufacturing side, defective products are inevitable from time to time, and not all of those defective products can be repaired. Hence, we would like to add defective production and repair rate to our proposed model and discuss how these factors may affect profits. In addition, holding cost, ordering cost, and transportation cost will also be considered as we develop the integrated inventory model with price-dependent payment period under the possible condition of defective products. We would like to find the maximum of the joint expected total profit for our model and come up with a suitable inventory policy accordingly. In the end, we have also provided a numerical example to clearly illustrate possible solutions.

  8. NMR-based metabolomics reveals that conjugated double bond content and lipid storage efficiency in HepG2 cells are affected by fatty acid cis/trans configuration and chain length

    DEFF Research Database (Denmark)

    Najbjerg, Heidi; Young, Jette F; Bertram, Hanne Christine S.

    2011-01-01

    from conjugated double bonds (5.65, 5.94, and 6.28 ppm) in cells exposed to vaccenic acid, revealing that vaccenic acid upon uptake by the HepG2 cells is converted into a conjugated fatty acid. Upon exposure of the HepG2 cells to either butyric acid (C4:0), caproic acid (C6:0), lauric acid (C12......In the present study the metabolic response to various fatty acids was investigated in HepG2 cells by using a 1HNMRbased approach. To elucidate the effect of cis/trans configuration, the cells were exposed to either oleic acid (C18:1 cis-9), elaidic acid (C18:1 trans-9), vaccenic acid (C18:1 trans......-11), linoleic acid (C18:2), or palmitic acid (C16:0), and multivariate data analysis revealed a strong effect of fatty acid on the lipophilic metabolite fraction. Inspection of the spectra revealed that the difference between the observed responses could be ascribed to the appearance of resonances...

  9. Quantitation of viable Coxiella burnetii in milk using an integrated cell culture-polymerase chain reaction (ICC-PCR) assay.

    Science.gov (United States)

    Stewart, Diana; Shieh, Y-Carol; Tortorello, Mary; Kukreja, Ankush; Shazer, Arlette; Schlesser, Joseph

    2015-11-01

    The obligate intracellular pathogen Coxiella burnetii has long been considered the most heat resistant pathogen in raw milk, making it the reference pathogen for determining pasteurisation conditions for milk products. New milk formulations and novel non-thermal processes require validation of effectiveness which requires a more practical method for analysis than using the currently used animal model for assessing Coxiella survival. Also, there is an interest in better characterising thermal inactivation of Coxiella in various milk formulations. To avoid the use of the guinea pig model for evaluating Coxiella survival, an Integrated Cell Culture-PCR (ICC-PCR) method was developed for determining Coxiella viability in milk. Vero cell cultures were directly infected from Coxiella-contaminated milk in duplicate 24-well plates. Viability of the Coxiella in milk was shown by a ≥ 0.5 log genome equivalent (ge)/ml increase in the quantity of IS111a gene from the baseline post-infection (day 0) level after 9-11 d propagation. Coxiella in skim, 2%, and whole milk, and half and half successfully infected Vero cells and increased in number by at least 2 logs using a 48-h infection period followed by 9-d propagation time. As few as 125 Coxiella ge/ml in whole milk was shown to infect and propagate at least 2 logs in the optimised ICC-PCR assay, though variable confirmation of propagation was shown for as low as 25 Coxiella ge/ml. Applicability of the ICC-PCR method was further proven in an MPN format to quantitate the number of viable Coxiella remaining in whole milk after 60 °C thermal treatment at 0, 20, 40, 60 and 90 min.

  10. Total integrated slidable and valveless solid phase extraction-polymerase chain reaction-capillary electrophoresis microdevice for mini Y chromosome short tandem repeat genotyping.

    Science.gov (United States)

    Kim, Yong Tae; Lee, Dohwan; Heo, Hyun Young; Sim, Jeong Eun; Woo, Kwang Man; Kim, Do Hyun; Im, Sung Gap; Seo, Tae Seok

    2016-04-15

    A fully integrated slidable and valveless microsystem, which performs solid phase DNA extraction (SPE), micro-polymerase chain reaction (μPCR) and micro-capillary electrophoresis (μCE) coupled with a portable genetic analyser, has been developed for forensic genotyping. The use of a slidable chip, in which a 1 μL-volume of the PCR chamber was patterned at the center, does not necessitate any microvalves and tubing systems for fluidic control. The functional micro-units of SPE, μPCR, and μCE were fabricated on a single glass wafer by conventional photolithography, and the integrated microdevice consists of three layers: from top to bottom, a slidable chip, a channel wafer in which a SPE chamber, a mixing microchannel, and a CE microchannel were fabricated, and a Ti/Pt resistance temperature detector (RTD) wafer. The channel glass wafer and the RTD glass wafer were thermally bonded, and the slidable chip was placed on the designated functional unit. The entire process from the DNA extraction using whole human blood sample to identification of target Y chromosomal short tandem repeat (STR) loci was serially carried out with simply sliding the slidable chamber from one to another functional unit. Monoplex and multiplex detection of amelogenin and mini Y STR loci were successfully analysed on the integrated slidable SPE-μPCR-μCE microdevice by using 1 μL whole human blood within 60 min. The proposed advanced genetic analysis microsystem is capable of point-of-care DNA testing with sample-in-answer-out capability, more importantly, without use of complicated microvalves and microtubing systems for liquid transfer.

  11. Software configuration management

    CERN Document Server

    Keyes, Jessica

    2004-01-01

    Software Configuration Management discusses the framework from a standards viewpoint, using the original DoD MIL-STD-973 and EIA-649 standards to describe the elements of configuration management within a software engineering perspective. Divided into two parts, the first section is composed of 14 chapters that explain every facet of configuration management related to software engineering. The second section consists of 25 appendices that contain many valuable real world CM templates.

  12. Supply chain dynamics in Asia

    OpenAIRE

    Banomyong, Ruth

    2010-01-01

    Supply chain management in Asia is a relatively novel topic but a key challenge for all Asian based manufacturers and traders when trying to integrate into the "global market". The purpose of the paper is to describe key supply chain issues faced in Asia. These issues are related to supply chain security that forces Asian firms to comply with numerous requirements as well as the importance of a properly managed supply chain in enhancing firms' competitiveness. The critical role played by Asia...

  13. Airport Configuration Prediction Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Airport configuration is a primary factor in various airport characteristics such as arrival and departure capacities and terminal area traffic patterns. These...

  14. Ansible configuration management

    CERN Document Server

    Hall, Daniel

    2013-01-01

    Ansible Configuration Management"" is a step-by-step tutorial that teaches the use of Ansible for configuring Linux machines.This book is intended for anyone looking to understand the basics of Ansible. It is expected that you will have some experience of how to set up and configure Linux machines. In parts of the book we cover configuration files of BIND, MySQL, and other Linux daemons, therefore a working knowledge of these would be helpful but are certainly not required.

  15. Primary structure and configuration of tea polysaccharide

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    The monosaccharide composition of a tea polysaccharide(TGC)was determined by GC-MS method.Furthermore,the primary structure of tea polysaccharide and its configuration in the aqueous solution were investigated utilizing a combination of classical chemical methods and modern instrumental techniques including GC-MS,Proton NMR,UV and CD.The results indicate that TGC consists of 6 monosaccharides: Rha,Ara,Xyl,Glu,Man and Gal.The configuration of TGC in water solution is proposed to be an ordered helix.The possible primary structure of TGC was outlined as below: the basic structure of the main chain consists of Rha,Glu and Gal units.All three monosaccharides can potentially be connected to branch chains consisting of mainly Ara,and the linkages could be in β1 →2,β1 →3,β2→3 forms.When branch chain is absent in the basic structure of the main chain the linkage consists of only β1→3; Xyl exists at the terminal end of either the main chain or the branch chain with β1 → linkage.

  16. Supply chain reliability modelling

    OpenAIRE

    Eugen Zaitsev

    2012-01-01

    Background: Today it is virtually impossible to operate alone on the international level in the logistics business. This promotes the establishment and development of new integrated business entities - logistic operators. However, such cooperation within a supply chain creates also many problems related to the supply chain reliability as well as the optimization of the supplies planning. The aim of this paper was to develop and formulate the mathematical model and algorithms to find the ...

  17. Astudy of the system construction of the whole rural tourism value chain based on industry integration%基于产业融合的乡村旅游全价值链体系构建研究

    Institute of Scientific and Technical Information of China (English)

    马勇; 张学习

    2014-01-01

    Based on the point of view of industrial integration , through the new concept of the whole value chain , This article analyses the six elements of the value chain of the rural tourism:resources integration value , functional integration value , brand value integration and cultural integration value ,fusion integration of funds , personnel in-tegration,and innovation the guarantee value fusion .And on this basis build industrial convergence based the whole rural tourism value chain system .Hope for our country rural tourism industry development , positioning and value enhancement to provide brand -new concept guidance .%基于产业融合的观点,以全价值链这一全新的理念,分析了乡村旅游全价值链的六大构成要素,即资源融合价值、功能融合价值、品牌融合价值、文化融合价值、以及由资金融合、人才融合、创新融合构成的保障融合价值。并在此基础上构建出基于产业融合的乡村旅游全价值链体系,以期为我国乡村旅游产业发展、定位与价值提升提供全新的理念指导。

  18. PIV Logon Configuration Guidance

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Glen Alan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-03-04

    This document details the configurations and enhancements implemented to support the usage of federal Personal Identity Verification (PIV) Card for logon on unclassified networks. The guidance is a reference implementation of the configurations and enhancements deployed at the Los Alamos National Laboratory (LANL) by Network and Infrastructure Engineering – Core Services (NIE-CS).

  19. Integration

    DEFF Research Database (Denmark)

    Emerek, Ruth

    2004-01-01

    Bidraget diskuterer de forskellige intergrationsopfattelse i Danmark - og hvad der kan forstås ved vellykket integration......Bidraget diskuterer de forskellige intergrationsopfattelse i Danmark - og hvad der kan forstås ved vellykket integration...

  20. Business Model Process Configurations

    DEFF Research Database (Denmark)

    Taran, Yariv; Nielsen, Christian; Thomsen, Peter;

    2015-01-01

    strategic preference, as part of their business model innovation activity planned. Practical implications – This paper aimed at strengthening researchers and, particularly, practitioner’s perspectives into the field of business model process configurations. By insuring an [abstracted] alignment between......Purpose – The paper aims: 1) To develop systematically a structural list of various business model process configuration and to group (deductively) these selected configurations in a structured typological categorization list. 2) To facilitate companies in the process of BM innovation......, by developing (inductively) an ontological classification framework, in view of the BM process configurations typology developed. Design/methodology/approach – Given the inconsistencies found in the business model studies (e.g. definitions, configurations, classifications) we adopted the analytical induction...

  1. Are Local Food Chains More Sustainable than Global Food Chains? Considerations for Assessment

    Directory of Open Access Journals (Sweden)

    Gianluca Brunori

    2016-05-01

    Full Text Available This paper summarizes the main findings of the GLAMUR project which starts with an apparently simple question: is “local” more sustainable than “global”? Sustainability assessment is framed within a post-normal science perspective, advocating the integration of public deliberation and scientific research. The assessment spans 39 local, intermediate and global supply chain case studies across different commodities and countries. Assessment criteria cover environmental, economic, social, health and ethical sustainability dimensions. A closer view of the food system demonstrates a highly dynamic local–global continuum where actors, while adapting to a changing environment, establish multiple relations and animate several chain configurations. The evidence suggests caution when comparing “local” and “global” chains, especially when using the outcomes of the comparison in decision-making. Supply chains are analytical constructs that necessarily—and arbitrarily—are confined by system boundaries, isolating a set of elements from an interconnected whole. Even consolidated approaches, such as Life Cycle Assessment (LCA, assess only a part of sustainability attributes, and the interpretation may be controversial. Many sustainability attributes are not yet measurable and “hard” methodologies need to be complemented by “soft” methodologies which are at least able to identify critical issues and trade-offs. Aware of these limitations, our research shows that comparing local and global chains, with the necessary caution, can help overcome a priori positions that so far have characterized the debate between “localists” and “globalists”. At firm level, comparison between “local” and “global” chains could be useful to identify best practices, benchmarks, critical points, and errors to avoid. As sustainability is not a status to achieve, but a never-ending process, comparison and deliberation can be the basis of a

  2. Falling chains

    Science.gov (United States)

    Wong, Chun Wa; Yasui, Kosuke

    2006-06-01

    The one-dimensional fall of a folded chain with one end suspended from a rigid support and a chain falling from a resting heap on a table is studied. Because their Lagrangians contain no explicit time dependence, the falling chains are conservative systems. Their equations of motion are shown to contain a term that enforces energy conservation when masses are transferred between subchains. We show that Cayley's 1857 energy nonconserving solution for a chain falling from a resting heap is incorrect because it neglects the energy gained when a link leaves a subchain. The maximum chain tension measured by Calkin and March for the falling folded chain is given a simple if rough interpretation. Other aspects of the falling folded chain are briefly discussed.

  3. Private Cloud Configuration with MetaConfig

    DEFF Research Database (Denmark)

    Nielsen, Thomas; Iversen, Christian; Bonnet, Philippe

    2011-01-01

    With the advent of private clouds, the challenge of configuring a mix of physical and virtual machines is no longer reserved to a few system administrator gurus. How to assign virtual machines onto physical machines to leverage the available resources? How to maintain the virtual machine...... configurations congruent with a given specification, even in the face of unexpected changes? System administrators should be able to rely on appropriate tools to tackle these questions. However, today, even if tools exist to automate system configuration, there is no solution that seamlessly integrate...... the administration and configuration of virtual as well as physical machines. In this paper, we present MetaConfig, a system that supports (a) convergent as well as congruent configuration management, (b) full bootstrapping of blank physical and virtual machines and (c) automatic allocation of virtual machines onto...

  4. Working towards an ITIL Compliant Configuration Management

    OpenAIRE

    Omidiora, Abimbola

    2012-01-01

    The objective of this Thesis is to suggest how to implement an ITIL compliant configuration management based on a set of ITIL-oriented recommendations tailored for the case company. Information Technology Infrastructure Library (ITIL) is a de facto standard to manage complex IT systems which comprises best practices from IT Service Management (ITSM). Configuration Management (CM) is an integral part of ITIL processes designed to streamline IT management by systematizing IT environment, and th...

  5. Power and supply chain integration

    NARCIS (Netherlands)

    Petkova, Boyana Nikolaeva

    2013-01-01

    Hedendaagse economieën zijn gebaseerd op de sequentiële verdeling van taken tussen bedrijven. Bij een dergelijke verdeling van taken voegt elk bedrijf waarde toe aan een halffabricaat en verkoopt het door aan een volgend bedrijf totdat een product ontstaat dat gereed is voor de eindconsument. De lit

  6. Unwrapping Chains

    CERN Document Server

    Cambou, A D; Hamm, E; Hanna, J A; Menon, N; Santangelo, C D; Walsh, L

    2012-01-01

    A loop of chain can move along its own tangents, maintaining a steady shape. An open-ended chain undergoing a nontrivial motion must change its shape. One consequence is that chains pulled around objects will fail to follow the contours of the objects, unwrapping themselves instead. This short note accompanies a fluid dynamics video submission (83068) to the APS DFD Gallery of Fluid Motion 2012.

  7. Equivariant configuration spaces

    OpenAIRE

    Rourke, Colin; Sanderson, Brian

    1997-01-01

    We use the compression theorem (arxiv:math.GT/9712235) cf section 7, to prove results for equivariant configuration spaces analogous to the well-known non-equivariant results of May, Milgram and Segal.

  8. FEL phased array configurations

    Science.gov (United States)

    Shellan, Jeffrey B.

    1986-01-01

    The advantages and disadvantages of various phased array and shared aperture concepts for FEL configurations are discussed. Consideration is given to the characteristics of intra- and inter-micropulse phasing; intra-macropulse phasing; an internal coupled resonator configuration; and an injection locked oscillator array. The use of a master oscillator power amplifier (MOPA) configuration with multiple or single master oscillators for FELs is examined. The venetian blind, rotating plate, single grating, and grating rhomb shared aperture concepts are analyzed. It is noted that the shared aperture approach using a grating rhomb and the MOPA concept with a single master oscillator and a coupled resonator are useful for FEL phased array configurations; and the MOPA concept is most applicable.

  9. Firewall Configuration Errors Revisited

    CERN Document Server

    Wool, Avishai

    2009-01-01

    The first quantitative evaluation of the quality of corporate firewall configurations appeared in 2004, based on Check Point FireWall-1 rule-sets. In general that survey indicated that corporate firewalls were often enforcing poorly written rule-sets, containing many mistakes. The goal of this work is to revisit the first survey. The current study is much larger. Moreover, for the first time, the study includes configurations from two major vendors. The study also introduce a novel "Firewall Complexity" (FC) measure, that applies to both types of firewalls. The findings of the current study indeed validate the 2004 study's main observations: firewalls are (still) poorly configured, and a rule-set's complexity is (still) positively correlated with the number of detected risk items. Thus we can conclude that, for well-configured firewalls, ``small is (still) beautiful''. However, unlike the 2004 study, we see no significant indication that later software versions have fewer errors (for both vendors).

  10. Drupal 8 configuration management

    CERN Document Server

    Borchert, Stefan

    2015-01-01

    Drupal 8 Configuration Management is intended for people who use Drupal 8 to build websites, whether you are a hobbyist using Drupal for the first time, a long-time Drupal site builder, or a professional web developer.

  11. ATLAS DAQ Configuration Databases

    Institute of Scientific and Technical Information of China (English)

    I.Alexandrov; A.Amorim; 等

    2001-01-01

    The configuration databases are an important part of the Trigger/DAQ system of the future ATLAS experiment .This paper describes their current status giving details of architecture,implementation,test results and plans for future work.

  12. Airport Configuration Prediction Project

    Data.gov (United States)

    National Aeronautics and Space Administration — There is presently poor knowledge throughout the National Airspace System (NAS) of the airport configurations currently in use at each airport. There is even less...

  13. The New Program of Plastic Supply Chain Integration Management%塑料供应链一体化管理新方案

    Institute of Scientific and Technical Information of China (English)

    张浩彬

    2014-01-01

    After entering the 21st century,plastic consumption in china has been higher than the European,became the largest production base of plastic and consumption,and Linyi is the plastic main trade area domain industry's largest in china, most dosage,circulation is the most concentrated area.Plastic industry in Linyi development for thirty years,have already formed the industrial clusters,to go with them has become a pillar of Linyi wholesale market industry.And under the new trend of logistics service platform,plastic also exist on supply chain management and logistics links the shortcomings of traditional circulation.In view of the problems of some disadvantages,this article only in Shandong Huapaike logistics co.,LTD.for example,in Linyi is analysed,combined with their own advantages and experience of China park logistics a series of integrated,set up a plastic on the solution of the advanced supply chain management solutions.%进入21世纪之后,我国的塑料消费早已超过欧洲成为最大的塑料生产基地和消费基地,而临沂又是我国塑料主要贸易区域中产业规模最大,用量最多,流通最为集中的地区。塑料行业在临沂发展已有三十年,早已经形成了与之配套的产业群,现已成为临沂批发市场的支柱行业。同时,在物流服务平台化的新趋势下,传统的塑料供应链管理上也有存在传统流通和物流环节的种种弊端。针对出现的一些弊端问题,文中仅以山东华派克物流有限公司为例,浅析在临沂市场上,华派克物流结合自身的优势与经验进行了一系列的整合,建立起一套先进的解决塑料供应链的管理方案。

  14. Dynamics in Blends of Long Polymers with Unentangled Short Chains

    OpenAIRE

    Colby, Ralph

    1997-01-01

    Scaling ideas for dynamics of polymer solutions are extended to the case of a solution of long chains (of N monomers) in unentangled short chains (of P monomers). The P chains can be sufficiently short to make the long chains partially swell (P < N1/2). While the configurational statistics of the partially swollen long chains are perfectly analogous to the case of a long chain in marginal solvent, the dynamics are qualitatively different because of differences in the screening of hydrodynamic...

  15. SUPPLY CHAIN DESIGN AND COST ANALYSIS THROUGH SIMULATION

    OpenAIRE

    Bottani, Eleonora; Montanari, Roberto

    2010-01-01

    Abstract This paper is grounded on a discrete-event simulation model, reproducing a Fast Moving Consumer Goods (FMCG) supply chain, and aims at quantitatively assessing the effects of different supply configurations on the resulting total supply chain costs and bullwhip effect. Specifically, 30 supply chain configurations are examined, stemming from the combination of several supply chain design parameters, namely number of echelons (from 3 to 5), reorder and inventory management p...

  16. Configuration by Modularisation

    DEFF Research Database (Denmark)

    Riitahuhta, Asko; Andreasen, Mogens Myrup

    1998-01-01

    Globally operating companies have realized that locally customized products and services are today the prerequisite for the success. The capability or the paradigm to act locally in global markets is called Mass Customization [Victor 1997]. The prerequisite for Mass Customization is Configuration...... for the creation of a structured product family is presented and examples are given. The concepts of a novel Dynamic Modularisation method, Metrics for Modularisation and Design for Configurability are presented....

  17. Compact Torsatron configurations

    International Nuclear Information System (INIS)

    Low-aspect-ratio stellarator configurations can be realized by using torsatron winding. Plasmas with aspect ratios in the range of 3.5 to 5 can be confined by these Compact Torsatron configurations. Stable operation at high Β should be possible in these devices, if a vertical field coil system is adequately designed to avoid breaking of the magnetic surfaces at finite Β. 17 refs., 21 figs., 1 tab

  18. Falling chains

    CERN Document Server

    Wong, C W; Wong, Chun Wa; Yasui, Kosuke

    2006-01-01

    The one-dimensional falling motion of a bungee chain suspended from a rigid support and of a chain falling from a resting heap on a table is studied. Their Lagrangians are found to contain no explicit time dependence. As a result, these falling chains are conservative systems. Each of their Lagrange's equations of motion is shown to contain a term that enforces energy conservation when masses are transferred between subchains. We show in particular that Cayley's 1857 energy nonconserving solution for a chain falling from a resting heap is incorrect because it neglects the energy gained when the transferred link is emitted by the emitting subchain. The maximum chain tension measured by Calkin and March for the falling bungee chain is given a simple if rough interpretation. In the simplified one-dimensional treatment, the kinetic energy of the center of mass of the falling bungee chain is found to be converted by the chain tension at the rigid support into the internal kinetic energy of the chain. However, as t...

  19. Supply chains : ago-antagonistic systems through co-opetition game theory lens

    OpenAIRE

    Zouaghi, I.; Spalanzani, A.

    2009-01-01

    cahier de recherche n°2009-13 E5 Supply chain configurations, as hybrid governance structures, allow companies to be sufficiently integrated while keeping a certain level of flexibility. This enables them, on one hand, to converge towards common interests through the development of cooperation; and on the other hand, to diverge on their own interests by remaining in competition. This dynamics generates an ago-antagonistic system where both of these two concepts, namely cooperation and comp...

  20. Crafting inclusive value chains: a comparison of two cases of biotrade in South America

    OpenAIRE

    Roldan Muradian; Gerard Verschoor; Edgar Eduardo Bolivar; German Ignacio Ochoa

    2012-01-01

    The article analyzes the configuration of networks of innovation in two cases of inclusive biotrade value chains: The production of spicy sauces with Amazonian fruits in Colombia and the production of perfumes in Brazil, based on oily essences originating from a dry forest in Ecuador. Through the integration of theoretical perspectives, the authors highlight both the economic and socio-cultural elements that impinge on the performance of these networks. This enables them to consider the tens...

  1. Study on the Integrated Supply Chain Management of Agricultural Products Leading by Third-party Logistics%第三方物流主导的农产品集成供应链管理研究

    Institute of Scientific and Technical Information of China (English)

    杨宏祥; 查荣

    2011-01-01

    在分析我国农产品物流模式和存在问题基础上,阐述了实施第三方物流主导的农产品集成供应链管理的动因,建立了供应链模型,提出了相应的发展对策.%Based on the analysis of the logistics modes and problems of agricultural products in China, the motives of the integrated supply chain management of agricultural products leading by third-party logistics was discussed, the supply chain model was established, and some corresponding development countermeasures were put forward.

  2. Bethe's quantum numbers and rigged configurations

    Directory of Open Access Journals (Sweden)

    Anatol N. Kirillov

    2016-04-01

    Full Text Available We propose a method to determine the quantum numbers, which we call the rigged configurations, for the solutions to the Bethe ansatz equations for the spin-1/2 isotropic Heisenberg model under the periodic boundary condition. Our method is based on the observation that the sums of Bethe's quantum numbers within each string behave particularly nicely. We confirm our procedure for all solutions for length 12 chain (totally 923 solutions.

  3. Bethe's quantum numbers and rigged configurations

    OpenAIRE

    Kirillov, Anatol N.; Sakamoto, Reiho

    2016-01-01

    We propose a method to determine the quantum numbers, which we call the rigged configurations, for the solutions to the Bethe ansatz equations for the spin-1/2 isotropic Heisenberg model under the periodic boundary condition. Our method is based on the observation that the sums of Bethe's quantum numbers within each string behave particularly nicely. We confirm our procedure for all solutions for length 12 chain (totally 923 solutions).

  4. SCRL-Model for Human Space Flight Operations Enterprise Supply Chain

    Science.gov (United States)

    Tucker, Brian

    2010-01-01

    Standard approach to evaluate and configure adaptable and sustainable program and mission supply chains at an enterprise level. End-to-end view. Total Lifecycle. Evaluate the readiness of the supply chain during the supply chain development phase.

  5. Research on Web-Based Product Structure and Configuration Management

    Institute of Scientific and Technical Information of China (English)

    CHENJi-zhong; TIANLing; XUXiao-hui

    2004-01-01

    An enhanced system architecture of Web-based product structure and configuration management system along with its, functions are is presented. The key techniques, such as construction of object models of product structure and product configuration, hybrid approach method in product configuration management, sharing and integration of heterogeneous product data, integration with other sub-systems, are discussed too. A prototype system is developed by J2EE technology.

  6. Understanding the supply chain

    Directory of Open Access Journals (Sweden)

    Aćimović Slobodan

    2006-01-01

    Full Text Available Supply chain management represents new business philosophy and includes strategically positioned and much wider scope of activity in comparison with its "older brother" - management of logistics. Philosophy of the concept of supply chain is directed to more coordination of key business functions of every link in distribution chain in the process of organization of the flow of both goods and information, while logistic managing instruments are focused on internal optimum of flows of goods and information within one company. Applying the concept of integrated supply chain among several companies makes the importance of operative logistics activity even greater on the level of one company, thus advancing processes of optimum and coordination within and between different companies and confirms the importance of logistics performances for the company’s profitability. Besides the fact that the borders between companies are being deleted, this concept of supply chain in one distribution channel influences increasing of importance of functional, i.e. traditional business managing approaches but instead it points out the importance of process managing approaches. Although the author is aware that "there is nothing harder, more dangerous and with uncertain success, but to find a way for introducing some novelties (Machiavelli, it would be even his additional stimulation for trying to bring closer the concept and goals of supply chain implementation that are identified in key, relevant, modern, theoretical and consulting approaches in order to achieve better understanding of the subject and faster implementation of the concept of supply chain management by domestic companies.

  7. Supply chain quality management

    Directory of Open Access Journals (Sweden)

    Hannan Amoozad Mahdiraji

    2012-10-01

    Full Text Available In recent years, there are several methods introduced for the improvement of operational performances. Total quality management and supply chain management are two methods recommended for this purpose. These two approaches have been studied in most researches separately, while they have objectives in common, and this makes them a strategic means, which can be used, simultaneously. Total quality management and supply chain management play significant roles to increase the organizational competitiveness power. Moreover, they have only one purpose that is customer satisfaction, and they are different only on their approaches to reach their objectives. In this research, we aim to study both approaches of quality management and supply chain, their positive increasing effects that may be generated after their integration. For this purpose, the concept and definitions of each approach is studied, independently, their similarities and differences are recognized, and finally, the advantages of their integration are introduced.

  8. 基于城乡一体化背景的乳制品行业物流供应链整合%Integration of Dairy Product Logistics Supply Chains against Background of Urban-rural Overall Planning

    Institute of Scientific and Technical Information of China (English)

    秦烨; 康耀武

    2014-01-01

    In this paper, we introduced the current status of the logistics chain of the dairy industry in China as well as the influence of the urban-rural overall planning on the supply chain systems of the industry, and at the end, proposed the line of thinking and relevant measures to integrate the logistics supply chain systems of the dairy industry in China.%阐述了我国乳制品行业物流链的发展状况与城乡一体化对乳制品行业供应链的影响,并基于城乡一体化背景提出了我国乳制品行业物流供应链整合的思路与相关举措。

  9. Integrated production of wood fuels and pulpwood using chain-flail delimbing-debarking technology; Puupolttoaineen ja selluhakkeen integroitu tuotanto ketjukarsinta-kuorintatekniikalla

    Energy Technology Data Exchange (ETDEWEB)

    Rieppo, K. [Metsaeteho, Helsinki (Finland); Hakkila, P. [Finnish Forest Research Inst., Vantaa (Finland); Aho, V.J. [VTT Energy, Jyvaeskylae (Finland)

    1996-12-31

    The objective of the research was to develop a procurement method for small-diameter pulpwood based on chain-flail delimbing-debarking method. The study consisted of four parts: Development of the chain-flail delimbing-debarking method (based on Peterson Pacific DDC 5000 device); Combined chain-flail delimbing and drum-debarking; Processing and procurement of the chain-flail delimbing chips and; Intensifying of the timber debarking in chain-flail delimbing. The project was coordinated by Metsaeteho, and it was carried out as cooperation between Metsaeteho, the Finnish Forest Research Institute (METLA), VTT Energy, Pertti Szepaniak Oy and Enso-Gutzeit Oy. A calculation model, by which it is possible to determine the costs of pulpwood chips and fuel-rawmaterials formed beside the pulpwood chips while using different kinds of procurement methods and chains, was developed for chain-flail delimbing-debarking-chipping method based on utilization of Peterson Pacific device. By the model it is possible to optimize the utilization of the method in practice. A new fixed version of the combined chain-flail delimbing drum-debarking equipment was constructed in 1995. Tests with this equipment started in February 1996. A debarking simulator, by which it is possible to study the effects of the lengths of the chains and brushes, the positioning, the hit-angles and speeds on the removal of branches and bark, has been compiled in the `Intensification of wood debarking in chain-flail delimbing` sub-task. Preliminary tests have been made using mainly frozen first thinning pine as test material

  10. Requirements of supply chain management in differentiating European pork chains

    NARCIS (Netherlands)

    Trienekens, J.H.; Wognum, P.M.

    2013-01-01

    This paper summarizes results obtained by research into pork chain management in the EU Integrated Project Q-Porkchains. Changing demands for intrinsic and extrinsic quality attributes of pork products impact the way supply chain management should be organized from the farmer down to the consumer. T

  11. The universal path integral

    OpenAIRE

    Lloyd, Seth; Dreyer, Olaf

    2013-01-01

    Path integrals represent a powerful route to quantization: they calculate probabilities by summing over classical configurations of variables such as fields, assigning each configuration a phase equal to the action of that configuration. This paper defines a universal path integral, which sums over all computable structures. This path integral contains as sub-integrals all possible computable path integrals, including those of field theory, the standard model of elementary particles, discrete...

  12. The LHCb configuration database

    CERN Document Server

    Abadie, L; Van Herwijnen, Eric; Jacobsson, R; Jost, B; Neufeld, N

    2005-01-01

    The aim of the LHCb configuration database is to store information about all the controllable devices of the detector. The experiment's control system (that uses PVSS ) will configure, start up and monitor the detector from the information in the configuration database. The database will contain devices with their properties, connectivity and hierarchy. The ability to store and rapidly retrieve huge amounts of data, and the navigability between devices are important requirements. We have collected use cases to ensure the completeness of the design. Using the entity relationship modelling technique we describe the use cases as classes with attributes and links. We designed the schema for the tables using relational diagrams. This methodology has been applied to the TFC (switches) and DAQ system. Other parts of the detector will follow later. The database has been implemented using Oracle to benefit from central CERN database support. The project also foresees the creation of tools to populate, maintain, and co...

  13. Configuration Control Office

    CERN Multimedia

    Beltramello, O

    In order to enable Technical Coordination to manage the detector configuration and to be aware of all changes in this configuration, a baseline of the envelopes has been created in April 2001. Fifteen system and multi-system envelope drawings have been approved and baselined. An EDMS file is associated with each approved envelope, which provides a list of the current known unsolved conflicts related to the envelope and a list of remaining drawing inconsistencies to be corrected. The envelope status with the associated drawings and EDMS file can be found on the web at this adress: http://atlasinfo.cern.ch/Atlas/TCOORD/Activities/Installation/Configuration/ Any modification in the baseline has to be requested via the Engineering Change Requests. The procedure can be found under: http://atlasinfo.cern.ch/Atlas/TCOORD/Activities/TcOffice/Quality/ECR/ TC will review all the systems envelopes in the near future and manage conflict resolution with the collaboration of the systems.

  14. The Research on Integrated Grain Supply Chain Management Based on Internet of Things%基于物联网的集成化粮食供应链管理研究

    Institute of Scientific and Technical Information of China (English)

    周行; 孙宏岭

    2011-01-01

    This paper optimized the grain supply chain based on internet of things and network technology, in the use of information technology integrates the enterprises involved of grain supply chain and the link of grain circulation, and then buitt integrated grain supply chain model and the whole structure based on radio frequency identification technology, obtained accurate prediction, calculates based on radio frequency technology providing large amounts data and processing power. Studies integrated grain supply chain management under the support of internet of things, establish to track the quality of grain and the processed products, control and traceability, to ensure security of grain and the processed products, establish grain security early warning system of supply and demand according to the accurate prediction relying on integrated grain supply chain management based on internet of things, according to integrated supply chain management based on internet of things, reduces logistics costs of grain and the processed products, improves efficiency and effectiveness of circulation.%依托物联网技术及网络对粮食供应链进行优化,利用信息技术集成粮食供应链涉及的企业及粮食流通环节,基于射频识别技术构建集成化粮食供应链模型及整体架构,依托射频技术提供的大量数据及处理能力进行计算求解,获得精确的预测,在物联网的支撑下研究集成化粮食供应链的管理.研究构建粮食及其加工品的质量跟踪、控制及追溯;依据物联网技术支持下集成化粮食供应链管理信息系统的精确预测,建立粮食供需安全预警系统;通过基于物联网对粮食供应链进行集成化管理,降低粮食及其加工品物流费用,提高流通效率及效益.

  15. Study on Framework of Integrated Risk Management of Flexible Coal and Electricity Supply Chain%弹性煤电供应链一体化风险管理框架研究

    Institute of Scientific and Technical Information of China (English)

    郭晓鹏; 杨里

    2012-01-01

    In this paper, we studied the integrated risk management model aimed at the overall improvement of theflexibility of the coal and electricity supply chain, whose contents included the overall analysis of the characteristics of the member units of the coal and electricity supply chain (including coal enterprise, electricity enterprise, railway transportation enterprise and ports, ete.),recognition of the internal and external risk factors of the supply chain, and establishment of complete integrated risk management framework model of coal and electricity supply chain.%主要研究以全面提升煤电供应链弹性为目标的一体化风险管理框架.研究内容主要包括全面分析煤电供应链各成员单位(包括煤炭企业、电力企业、铁路运输、港口等)的特性,识别煤电供应链内外部的风险因素,建立完整的煤电供应链一体化风险管理框架模型.

  16. Designing the Reverse Supply Chain

    DEFF Research Database (Denmark)

    Gobbi, Chiara

    2011-01-01

    for the reverse supply chain. Design/methodology/approach – In order to identify the relevance of the Fisher model, the model needs to be recast in terms of PRV, which, in this context, is considered the independent variable in the reverse logistics arena. Products defined as innovative in Fisher's taxonomy......Purpose – The purpose of this paper is to explore the impact of the product residual value (PRV) and the loss of value over time of returned products in the reverse supply chain configuration. It also examines whether or not the distinction of Fisher's functional and innovative products holds...... correspond to disposed products with high residual value, whereas functional products correspond to disposed products with low residual value. Furthermore, the PRV and the speed at which returned products lose their value are considered in order to determine the configuration of the reverse supply chain...

  17. 中石化不同属性物资的供应链信息集成策略研究%Study on Strategy for Integrating Supply Chain Information of Materials of Different Attributes by SINOPEC

    Institute of Scientific and Technical Information of China (English)

    王志刚

    2014-01-01

    In this paper, from the angle of supply chain information integration, we analyzed the major factors influencing the integration of the supply chain and proposed that on the foundation of supplier relationship management, we should consider the different attributes and characteristics of the materials purchased by the enterprises and implement different supply chain information integration strategies for the four categories which were the strategic materials, regular materials, leverage materials and bottleneck materials.%从供应链信息集成的角度出发,分析了影响供应链信息集成的主要因素,提出应在加强供应商关系管理的基础上,结合企业采购物资的不同属性和特点,按照战略类物资、常规类物资、杠杆类物资和瓶颈类物资四个类别,分别实施不同的供应链信息集成策略,以期以较低的成本投入取得供应链信息集成效果最大化。

  18. Ansible configuration management

    CERN Document Server

    Hall, Daniel

    2015-01-01

    This book is intended for anyone who wants to learn Ansible starting from the basics. Some experience of how to set up and configure Linux machines and a working knowledge of BIND, MySQL, and other Linux daemons is expected.

  19. Space Station Final Configuration

    Science.gov (United States)

    1994-01-01

    An artist's conception of what the final configuration of the International Space Station (ISS) will look like when it is fully built and deployed. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide an unprecedented undertaking in scientific, technological, and international experimentation.

  20. Inclusive Services Innovation Configuration

    Science.gov (United States)

    Holdheide, Lynn R.; Reschly, Daniel J.

    2011-01-01

    Teacher preparation to deliver inclusive services to students with disabilities is increasingly important because of changes in law and policy emphasizing student access to, and achievement in, the general education curriculum. This innovation configuration identifies the components of inclusive services that should be incorporated in teacher…

  1. DNS BIND Server Configuration

    Directory of Open Access Journals (Sweden)

    Radu MARSANU

    2011-01-01

    Full Text Available After a brief presentation of the DNS and BIND standard for Unix platforms, the paper presents an application which has a principal objective, the configuring of the DNS BIND 9 server. The general objectives of the application are presented, follow by the description of the details of designing the program.

  2. SCM and extended integration at the lower tiers of the construction supply chain: An explorative study in the Dutch construction industry

    OpenAIRE

    Pryke, S. D.; Broft, R.; Badi, S. M.

    2014-01-01

    Several studies have underlined the potential of Supply Chain Management (SCM) in meeting the formidable challenges associated with fragmentation, adversarial relationships and insufficient customer focus in the delivery of construction projects (e.g. Dainty et al., 2001; Cox and Ireland, 2002; Gadde and Dubois, 2010). However, there remains a paucity of properly documented examples of successfully implemented SCM initiatives, particularly at the lower tiers of the supply chain. This study se...

  3. Reference frame for Product Configuration

    DEFF Research Database (Denmark)

    Ladeby, Klaes Rohde; Oddsson, Gudmundur Valur

    2011-01-01

    This paper presents a reference frame for configuration. The reference frame is established by review of existing literature, and consequently it is a theoretical frame of reference. The review of literature shows a deterioration of the understanding of configuration. Most recent literature reports...... on configuration systems in the shape of anecdotal reporting on the development of information systems that perhaps support the configuration task – perhaps not. Consequently, the definition of configuration has become ambiguous as different research groups defines configuration differently. This paper propose...... a reference frame for configuration that permits 1) a more precise understanding of a configuration system, 2) a understanding of how the configuration system relate to other systems, and 3) a definition of the basic concepts in configuration. The total configuration system, together with the definition...

  4. 'Integration'

    DEFF Research Database (Denmark)

    Olwig, Karen Fog

    2011-01-01

    , while the countries have adopted disparate policies and ideologies, differences in the actual treatment and attitudes towards immigrants and refugees in everyday life are less clear, due to parallel integration programmes based on strong similarities in the welfare systems and in cultural notions of...

  5. Configuration Management for eXtreme Programming

    DEFF Research Database (Denmark)

    Asklund, U.; Bendix, Lars Gotfred; Ekman, T.

    2003-01-01

    Extreme programming (XP) is a software development method that prescribes the use of 12 different practices. Four of these practices (collective code ownership, continuous integration, small releases and refactoring) can indeed be given good support by the use of simple configuration management (CM...

  6. METRODOS: Meteorological preprocessor chain

    DEFF Research Database (Denmark)

    Astrup, P.; Mikkelsen, T.; Deme, S.

    2001-01-01

    The METRODOS meteorological preprocessor chain combines measured tower data and coarse grid numerical weather prediction (NWP) data with local scale flow models and similarity scaling to give high resolution approximations of the meteorological situation. Based on available wind velocity...... - heat flux related measurement, e.g. a temperature gradient, are used to give local values of friction velocity and Monin-Obukhov length plus an estimate of the mixing height. The METRODOS meteorological preprocessor chain is an integral part of the RODOS - Real Time On Line Decision Support - program...

  7. JBOOM: Java Based Object Oriented Model of Software Configuration Management

    Directory of Open Access Journals (Sweden)

    Bhavya Mehta

    2006-01-01

    Full Text Available Most of the present Software Configuration Management systems deal with version and configurations in the form of files and directories, the need today is to have a Software Configuration Management system that handles versions and configurations directly in terms of functions (program module. A major objective of this research is the use of Java in the Software Configuration Management systems. An object-oriented language provides both design and implementation in an integrated manner. We have proposed a model that expresses change evolution in terms of class hierarchies. As the changes evolve so does the class hierarchy, it can be further extended and existing classes can be extended.

  8. Kinematics and Dynamics of Roller Chain Drives

    DEFF Research Database (Denmark)

    Fuglede, Niels

    with a clear derivation of the seating and release configurations, as well as the driven sprocket angular position, velocity and discontinuous acceleration. The approximate analysis allows for simple expressions describing the seating and release configurations and shows the influence of main design parameters...... is presented, which also allows for exact sprocket center positions for a chain with a given number of links. Results show that the total chain wrapping length varies periodically with the tooth frequency. These results are of practical importance to both the design, installation and operation of roller chain...

  9. Research on non-integrated supply chain models based on different transportation sponsors%基于不同运输主体的非一体化供应链模型研究

    Institute of Scientific and Technical Information of China (English)

    赵明

    2014-01-01

    This paper studies two types of models of the non-integrated supply chain without or with a transporter. Firstly, in the absence of a transporter,we establish the non-integrated supply chain models that the retailor and the manufacturer respectively acts as the transporter.Secondly, with a transporter participating in the supply chain,we set up the non-integrated supply chain models that the retailor and the manufacturer respectively bears the transportation service charges.Finally,by comparing the optimal solutions of the two types of models,we analyze the effects of the different transportation sponsors and the different undertakers of transportation service expenses on the retailor’s, manufacturer’s and the supply chain’s total profits.%研究了没有运输商和有运输商参与的两类非一体化供应链模型。首先,在没有运输商参与情况下,构建了零售商和制造商分别作为运输主体的非一体化供应链模型;其次,在有运输商参与的情况下,构建了零售商和制造商分别承担运输服务费用下的非一体化供应链模型;最后,通过对两类模型最优解的比较,分析了运输主体的不同和运输服务费用承担主体的不同对零售商、制造商以及供应链整体利润的影响。

  10. Code Organization and Configuration Management

    Institute of Scientific and Technical Information of China (English)

    J.P.Wellisch; I.Osborne; 等

    2001-01-01

    Industry experts are increasingly focusing on team productivity on team productivity as the key to success,the base of the team effort is the four-fold structure of software in terms of logical organisation,physical organisation,managerial organisation,and dynamical structure.We describe the ideas put into action within the CMS software for organising software into sub-systems and packages,and to establish configuration management in a multiproject environment.We use a structure that allows to maximise the independence of soft ware development in individual areas,and at the same time emphasises the overwhelming importance of the interdependencies between the packages and components in the system.We comment on release procedures,and describe the inter-relationship between release,development,integration,and testing.

  11. 推拉驱动模式供应链信息整合能力测度研究%Research on the Estimation of Push-Pull Driven Mode Supply Chain Information Integration Ability

    Institute of Scientific and Technical Information of China (English)

    王丘; 汤兵勇

    2012-01-01

    针对推拉驱动模式供应链驱动力的变化,在总结相关文献的基础上,构建了推拉驱动模式供应链信息整合能力测度的模糊综合评价指标体系,从物理设施、信息流程与信息内容、信息组织结构、信息用户体验与满意、供应链整体效益5个方面,结合实际调研资料,对种业供应链(A)与家电行业供应链(B)的信息整合能力进行了模糊综合评价.测度结果表明,所得出的量化指标符合测度对象信息整合能力的实际水平,对供应链运营策略的调整及运营绩效的提高能够起到积极的推进作用.%In connection with the change of the driving force of the push-pull driven mode supply chain, the fuzzy comprehensive evaluation system of information integration ability on the basis of summing up the relevant literatures was built. And the supply chain information ability from five aspects including the physical facility, information flow and information content, organizational structure of information, user experience and user satisfaction, the overall efficiency of the supply chain were also estimated combined with the actual research data. Two supply chains were estimated including a seed industry supply chain(A) and an appliance industry supply chain(B). The estimation results showed that the quantitative indicators were in line with the actual level of the information integration ability of the objects. And the result can actively push forward the strategy adjustment of supply chain operation and the improvement of operational performance.

  12. Chain Gang

    Science.gov (United States)

    2006-01-01

    6 August 2006 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a chain of clustered and battered craters. These were formed by secondary impact. That is, somewhere to the south (beyond the bottom of this image), a large impact crater formed. When this occurred, material ejected from the crater was thrown tens to hundreds of kilometers away. This material then impacted the martian surface, forming clusters and chains of smaller craters. Location near: 15.8oN, 35.6oW Image width: 3 km (1.9 mi) Illumination from: upper left Season: Northern Spring

  13. Research on Supply Chain Integration Based on the Perspective of Logistics Finance%基于物流金融视角的供应链整合研究

    Institute of Scientific and Technical Information of China (English)

    赵希和; 邓志刚

    2014-01-01

    Integration of Supply Chain Logistics Financial Perspective is to improve the entire supply chain, an important measure of capital efficiency, to improve the competitiveness of the supply chain has an important significance. This article first summarizes the plight of logistics enterprises, banks and SMEs in the logistics supply chain faces, and then analyze the logistics finance for SMEs, based on logistics last financial perspective, clearly the significance of the development of logistics and finance.%基于物流金融视角的供应链整合研究,是提高整个供应链中资金使用效率的重要措施,对提高我国供应链的竞争力有着重要的意义。文中首先总结了物流企业、银行以及中小企业在物流供应链中面临的困境,然后对中小企业的物流金融进行分析,最后基于物流金融视角,明确了发展物流金融的意义。

  14. Intellectual Model-Based Configuration Management Conception

    Directory of Open Access Journals (Sweden)

    Bartusevics Arturs

    2014-07-01

    Full Text Available Software configuration management is one of the most important disciplines within the software development project, which helps control the software evolution process and allows including into the end project only tested and validated changes. To achieve this, software management completes certain tasks. Concrete tools are used for technical implementation of tasks, such as version control systems, servers of continuous integration, compilers, etc. A correct configuration management process usually requires several tools, which mutually exchange information by generating various kinds of transfers. When it comes to introducing the configuration management process, often there are situations when tool installation is started, yet at that given moment there is no general picture of the total process. The article offers a model-based configuration management concept, which foresees the development of an abstract model for the configuration management process that later is transformed to lower abstraction level models and tools are indicated to support the technical process. A solution of this kind allows a more rational introduction and configuration of tools

  15. 利丰集团供应链整合的差异化战略案例研究%The Case Study of Li & Fung Group’s Differentiation Strategy about Supply Chain Integration

    Institute of Scientific and Technical Information of China (English)

    陈放; 黄永聪

    2013-01-01

    Supply chain strategy depends on, not only the commercial nature of the competitive environment and technology -intensive products, but also product and market characteristics. Therefore, supply chain integration strategy must be combined with competition strategy including market strategy and product strategy. Based on case studies of Li & Fung Group, we make an in - depth study of how li & Fung Group integrates the global supply chain to achieve differentiation strategy, which establishes the competitive advantage hardly imitated by competitors, and achieves successes in the fragmentation industry.%供应链战略的制定,除了商业的本质、竞争环境和产品的技术密集程度,还要根据产品和市场的特点,因此,供应链整合战略必须与企业的市场战略和产品战略互相结合.通过对利丰集团的案例研究,深入研究利丰集团如何通过全球化的供应链整合实现差异化战略,建立对手无法模仿的竞争优势,并在经销贸易的碎片行业获取成功.基于此,探讨供应链整合战略如何形成差异化战略.

  16. Establishment of Integrated Mode of Fresh Farm Produce Cold Chain Logistics in Hubei%湖北生鲜农产品冷链物流一体化模式构建研究

    Institute of Scientific and Technical Information of China (English)

    李诗珍; 宁静

    2012-01-01

    In light of the reality of the development of fresh farm produce Cold chain ldgtstics in Hubei, we've proposed the line of thought for establishing the integrated mode of cold chain logistics and, based On the diversified relationship in the supply of fresh farm produce, constructed the logistics system which integrates the farm-trade docking of local low-end products, the farm-supermarket docking of regional circulation products as well as the wholesale cold-chain logistics for exported products,%根据湖北省生鲜农产品冷链物流发展的实际,提出了冷链物流一体化模式的构建思路.基于生鲜农产品多元化的供求关系,构建了地方低端产品的“农贸对接”、区域流通产品的“农超对接”以及外销出口产品的批发型冷链物流一体化模式.

  17. 两级物流服务供应链的服务集成商运作风险分析%The Analysis of Service Integrators Operational Risks in Two-Echelon Logistics Service Supply Chain

    Institute of Scientific and Technical Information of China (English)

    李杨; 刘璐; 徐国虎

    2011-01-01

    物流服务集成商作为物流服务供应链的核心,在"一个服务集成商,多个服务供应商"两级物流服务供应链模式下,存在着服务运作过程中的风险。从与功能型物流服务供应商合作过程产生的违约风险,包括利益分配不均风险、信用风险、逆向选择风险,以及服务集成商自身能力风险、不可抗力风险来分析两级物流服务供应链下服务集成商运作的风险,并提出了相应的对策。%Logistics service integrators as the core of logistics service supply chain exist on service operational risks in the model of two-echelon logistics service supply chain of "one service integrators, multiple service providers". This article analyzes service integrators" operational risks in two-echelon logistics service supply chain from the default risk in the co- operation with function-based logistics service providers, including the risk of interest uneven distribution, credit risk, risk of adverse selection, and the risk of service integrators" ability.

  18. 面对单客户的生产与配送二级供应链协同调度探讨%Study of Production and Outbound Distribution in 2 Stages of One-Customer Integrated Supply Chain Scheduling

    Institute of Scientific and Technical Information of China (English)

    冯鑫; 郑斐峰

    2014-01-01

    本文探讨了单机器单客户下的生产与配送二级供应链协同调度问题,对于配送车容量有限且车辆充足、单配送车容量无限的两种情形展开分析。针对每一种情形,分析对比了在配送环节中iid(单独配送)方式与 di-rect(批量配送)方式对供应链调度效果的作用,给出了不同配送方式占优的条件。研究结果对于供应链协同调度模式的选择具有指导意义。%The paper discusses the integrated production and transportation supply chain scheduling problem un -der the one machine and one customer .The research analyses the two circumstances of unconstrained resources of transportation with limited capacity and the only one transportation with infinite capacity .For each circum-stance , we analyse and compare the effect of iid and direct methods in transportation on supply chain scheduling . Simultaneously , we provide the dominant conditions for different transportation methods .The result of this research has certain significance for integrated supply chain scheduling .

  19. Policy design in closed-loop supply chains for the integrated management of component recycling and spare parts supply in the electronics industry

    Science.gov (United States)

    Schroeter, Marcus; Spengler, Thomas

    2004-02-01

    The strategy to recover components from discarded electrical and electronic equipment to obtain spare parts is promising, especially during the final service phase. In that phase, the original product is no longer produced and the sources of new parts are often limited. Controlling those closed-loop supply chains is challenging. Decision makers have to choose when to acquire discarded equipment, when to recover used parts, and when to produce new parts. We developed a generic system dynamics model that provides a test for various proposed policies to control closed-loop supply chains with parts recovery and spare-parts supply.

  20. Design of materials Configurations for enhanced phononic and electronic properties

    OpenAIRE

    Daraio, Chiara

    2006-01-01

    The discovery of novel nonlinear dynamic and electronic phenomena is presented for the specific cases of granular materials and carbon nanotubes. This research was conducted for designing and constructing optimized macro-, micro- and nano-scale structural configurations of materials, and for studying their phononic and electronic behavior. Variation of composite arrangements of granular elements with different elastic properties in a linear chain-of-sphere, Y-junction or 3-D configurations le...

  1. Static aeroelastic analysis for generic configuration wing

    Science.gov (United States)

    Lee, IN; Miura, Hirokazu; Chargin, Mladen K.

    1991-01-01

    A static aeroelastic analysis capability that calculates flexible air loads for generic configuration wings was developed. It was made possible by integrating a finite element structural analysis code (MSC/NASTRAN) and a panel code of aerodynamic analysis based on linear potential flow theory. The framework already built in MSC/NASTRAN was used, and the aerodynamic influence coefficient matrix was computed externally and inserted in the NASTRAN by means of a DMAP program. It was shown that deformation and flexible air loads of an oblique wing configuration including asymmetric wings can be calculated reliably by this code both in subsonic and supersonic speeds.

  2. Defect Dynamics of the Dipole Ordered Water Chain in a Polar Nanochannel

    Science.gov (United States)

    Matsui, Hiroshi; Suzuki, Yuta; Fukumochi, Hiroyuki; Tadokoro, Makoto

    2014-05-01

    Using large single molecular porous crystals of ({[CoIII(H2bim)3](TATC)•7H2O}n), we have studied the dynamics of hydrated protons and configurational defects via the water chain by measuring the Raman and infrared spectra, and microwave conductivity. The highly one-dimensional water chain is affected by the periodic arrangement of charged groups, which yield short- and long-range interfacial interactions. Below a critical temperature (Tc) of about 270 K, the electric dipole of water molecules forming the water chain exhibits antiferroelectric ordering through weak long-range interpore correlation with spatial anisotropy. Above Tc, the small dielectric constant indicates that the antiferroelectric correlation remains, and the configuration of the oxygen atoms in the water molecules is restricted by the short-range interfacial interactions. The anisotropic microwave response with respect to the water chain originates from the Eigen-type hydrated proton (protonic hole) accompanying local distortions, which mutually couples to the mobile configurational D (L) defect. The proton and protonic hole are introduced by self-dissociation of water molecules hydrogen bonded to the carboxylate, and the configurational defect is caused by the rotation of water molecules violating an ice rule. The effective mass of the hydrated proton (protonic hole) is enhanced, in combination with the configurational defect that behaves as the rate-determining step, and consequently the mobility is suppressed by two orders of magnitude compared with the water nanotube in the TMA salt. Owing to the integration of periodic charge-modulation effect during the transfer, we have experimentally clarified the dramatic suppression of one-dimensional proton conductivity and mobility for the first time.

  3. Chain Teleportation

    OpenAIRE

    Lee, Chien-er

    2004-01-01

    By means of the idea of measurements on the crossed space-time nonlocal observables, we extend the mechanism for the two-way quantum teleportation to the chain teleportation among N spatially separated spin-1/2 systems. Since in the process only the local interactions are used, the microcausality is automatically satisfied.

  4. Secure Supply Chains: Design Restrictions & Organizational Boundaries

    NARCIS (Netherlands)

    Ludema, M.W.

    2009-01-01

    An important issue in the design of secure supply chains is the understanding of the relation between supply chains and the organizational responsibility of specific parts of these supply chains. Organizational boundaries change over time by means of vertical and/or horizontal (des)-integration and

  5. Automatic Configuration in NTP

    Institute of Scientific and Technical Information of China (English)

    Jiang Zongli(蒋宗礼); Xu Binbin

    2003-01-01

    NTP is nowadays the most widely used distributed network time protocol, which aims at synchronizing the clocks of computers in a network and keeping the accuracy and validation of the time information which is transmitted in the network. Without automatic configuration mechanism, the stability and flexibility of the synchronization network built upon NTP protocol are not satisfying. P2P's resource discovery mechanism is used to look for time sources in a synchronization network, and according to the network environment and node's quality, the synchronization network is constructed dynamically.

  6. Configuring the autism epidemic

    DEFF Research Database (Denmark)

    Christensen, Fie Lund Lindegaard; Seeberg, Jens

    2017-01-01

    Autism has been described as an epidemic, but this claim is contested and may point to an awareness epidemic, i.e. changes in the definition of what autism is and more attention being invested in diagnosis leading to a rise in registered cases. The sex ratio of children diagnosed with autism...... is skewed in favour of boys, and girls with autism tend to be diagnosed much later than boys. Building and further developing the notion of ‘configuration’ of epidemics, this article explores the configuration of autism in Denmark, with a particular focus on the health system and social support to families...

  7. Benefit and Risk Decision of Supply Chain Resources Integration under 4PL%4PL模式下供应链资源整合的收益与风险决策

    Institute of Scientific and Technical Information of China (English)

    姚建明

    2011-01-01

    In order to analyze the decision process of 4PL resource integration in supply chain management, this paper sets forth a general operational framework for the supply chain resource integration under 4PL based on the integration cost and benefit and describes such an input-output relationship. It analyses the supply chain resource integration decisions under 4PL by systemically quantifying and weighing the benefits and risks of the integration. The paper focuses on the expected benefit after integration and the quantification methods of integration benefit and risk. Finally, the paper verifies the objectivity of the results and the theoretical and practical significance of the proposed ideas through a case study.%为了从系统性量化角度对第四方物流(4PL)整合供应链复杂资源的决策过程进行分析,以形成合理、高效及灵活的整合模式指导运作实践,从资源整合的整合成本输入及整合收益输出关系入手,搭建了4PL模式下供应链资源整合的基本运作框架,描述了整合的基本输入与输出关系.在此基础上,从整合的收益与风险系统性权衡与量化角度,对4PL模式下的供应链资源整合决策问题进行了分析,着重探讨了整合后的期望收益关系、整合的收益与风险衡量及量化方法以及基于该方法的整合决策问题.最后,通过整合决策的算例验证了结果的客观性及所提分析思路的理论与现实意义.

  8. 基于产业价值链整合探析移动互联网企业盈利模式%Integration of Mobile Internet Companies Profit Model Based on Industry Value Chain

    Institute of Scientific and Technical Information of China (English)

    颜华保

    2012-01-01

    Mobile Internet companies play the role of resource integration in the industry chain.Based on the industry value chain,mobile Internet companies and operators,content providers and equipment manufacturers show a high degree of association between the cone,and then the paper analyses factors that affect their profitability from the user,the value chain positioning,products and services,cross-border competition and cooperation,and explores the mobile Internet business profit model from pay for content,advertising media,product distribution and affiliate marketing interests share.The author believes that the mobile Internet companies must integrate internal and external resources to achieve profitability,to work closely with the various aspects of the industry chain,in order to ultimately achieve customer value.%移动互联网企业在产业链上扮演着资源整合的角色。基于产业价值链,移动互联网企业与运营商、内容供应商及设备制造商之间呈关联度高的锥型关系,进而从用户价值、价值链定位、产品与服务、跨界竞合四方面分析影响其盈利的因素,并从内容付费、广告媒介、产品分销以及联盟营销与利益分享四方面探析移动互联网企业的盈利模式。笔者认为,移动互联网企业要实现盈利,必须整合企业内外资源,与产业链各环节紧密合作,才能最终实现用户价值。

  9. 现代服务业供应链整合与上海国际贸易中心建设%Integration of supply chain of modern service industry and the construction of Shanghai's international trade centre

    Institute of Scientific and Technical Information of China (English)

    黄丙志

    2012-01-01

    In the context of economic globalization, supply chain is increasingly becoming a mainstream mode of production. The capabilities of supply chain management are particularly important. This article investigated Shanghai's business services, financial services, logistics services and information services, analyzed the present situation and problems of the development of the integration of the supply chain during the construction of Shanghai's international trade centre and put forward the suggestions to enhance the ability to integrate the supply chain of modern service industry in Shanghai.%在当今经济全球化背景下,供应链日益成为产业组织的一种主流生产模式,高端与专业性服务业的供应链整合尤为重要。服务企业能否形成以其为核心的供应链,关键取决于各自的供应链管理能力。通过考察上海商贸、金融、物流、计算机与信息服务业等涉及国际贸易中心建设的关键服务行业,在分析上海国际贸易中心建设中现代服务业供应链整合发展的现状与存在问题的基础上,提出上海增强服务业供应链整合能力的对策建议。

  10. 确定需求下VMI-TPL分销供应链集成库存策略研究%Optimal Policies for Integrated Inventory in VMI-TPL Supply Chain with Determined Demand

    Institute of Scientific and Technical Information of China (English)

    郑长征; 刘志学; 徐彬彬

    2011-01-01

    According to the problems arising in VMI implementation,a TPL is introduced into the VMI system to build an integrated inventory model in VMI-TPL supply chain with determined demand,which consists of a manufacturer,a TPL and multiple retailers.Raw materials and finished products are both considered in the model and the optimal production and inventory policies are derived.On this basis,the effect of various parameters such as production-demand ratio(p/d) on the costs of the supply chain is discussed and the optimal policy of integrated inventory model in VMI supply chain with TPL is compared with that without TPL.Through the comparison,we observe that TPL can effectively reduce the total average cost of supply chain and avoid high inventory costs and high operational risk of the manufacturer.Furthermore,we show that production-demand ratio(p/d) of the manufacturer affects the performance of VMI-TPL supply chain greatly;and the higher the p/d is,the better performance the supply chain has.%针对VMI在实施中存在的问题,本文将TPL引入VMI,构建了确定需求下,由制造商、TPL和多零售商构成,考虑原材料、产成品的VMI-TPL供应链集成库存模型,并给出了最优生产策略和库存策略。在此基础上,文章进一步讨论了产需比等变量对供应链成本的影响,并比较分析了引入TPL前后VMI的最优策略。研究表明:引入TPL能有效降低供应链平均总成本,避免制造商高库存成本和高运营风险;制造商的产需比(p/d)对TPL引入后的效果影响很大,产需比越大,引入TPL的效果越好。

  11. Configurational Entropy Revisited

    Science.gov (United States)

    Lambert, Frank L.

    2007-09-01

    Entropy change is categorized in some prominent general chemistry textbooks as being either positional (configurational) or thermal. In those texts, the accompanying emphasis on the dispersal of matter—independent of energy considerations and thus in discord with kinetic molecular theory—is most troubling. This article shows that the variants of entropy can be treated from a unified viewpoint and argues that to decrease students' confusion about the nature of entropy change these variants of entropy should be merged. Molecular energy dispersal in space is implicit but unfortunately tacit in the cell models of statistical mechanics that develop the configurational entropy change in gas expansion, fluids mixing, or the addition of a non-volatile solute to a solvent. Two factors are necessary for entropy change in chemistry. An increase in thermodynamic entropy is enabled in a process by the motional energy of molecules (that, in chemical reactions, can arise from the energy released from a bond energy change). However, entropy increase is only actualized if the process results in a larger number of arrangements for the system's energy, that is, a final state that involves the most probable distribution for that energy under the new constraints. Positional entropy should be eliminated from general chemistry instruction and, especially benefiting "concrete minded" students, it should be replaced by emphasis on the motional energy of molecules as enabling entropy change.

  12. 一种改进的支持外部Web服务集成的过程模型%Integration Process Model of External Web Services in Supply Chain Management System

    Institute of Scientific and Technical Information of China (English)

    蹇崇军

    2012-01-01

    According to the characteristics of supply chain management system, and the integration requirements of Web services in cross-organizational process, a modeling method is introduced for supporting integration of external Web services in Web Service-Based Process Model ( WSBPM). A supply chain management prototype system based on WSBPM model is designed and realized to present a framework for virtual enterprises. Finally, future research work is discussed. The operation of prototype system shows that the WSBPM model is good at integration for external Web service.%围绕供应链管理系统的特点,针对跨企业过程中服务的集成需求,提出了一种支持外部Web服务集成的适合供应链管理系统的建模方法——基于Web服务的过程模型(Web Service-based Process Model,WSBPM),并构建了一个基于WSBPM模型的供应链管理原型系统.该模型为虚拟企业实现供应链管理系统提供了一种框架,系统的运行结果表明,WSBPM模型具有良好的外部Web服务集成能力.

  13. Impact of power and relationship commitment on integration between manufacturers and suppliers in a supply chain%权力与关系承诺对供应商整合的影响

    Institute of Scientific and Technical Information of China (English)

    霍宝锋; 韩昭君; 赵先德

    2013-01-01

    本文研究了供应商五种权力的使用对制造商两种关系承诺的影响,以及它们对供应商整合的作用.通过对我国617家制造商的问卷调查及分析,提出并验证了供应商管理的权力-关系承诺-供应商整合的理论模型.研究结果表明:供应商使用专家权力和奖励权力既会增加制造商的规范性承诺也会增加它的工具性承诺;供应商使用强制权力会减少制造商的规范性承诺,而供应商使用认同权力和法定权力对制造商的两种关系承诺都没有显著影响.结果还发现制造商对供应商的两种关系承诺都会促进供应商整合,但是,规范性承诺的促进作用更大.本研究的理论意义在于在Zhao等[1]对制造商和客户之间权力-关系承诺-客户整合理论研究的基础上,进一步研究了供应商和制造商之间的关系,从而完善了整条供应链上权力-关系承诺-供应链整合的理论.本研究对企业供应链管理的实践活动具有一定的参考价值.%This study investigates five types of powers used by suppliers and their impacts on manufactures' two types of relationship commitments to suppliers and their influences on supplier integrations. Based on data collected from 617 manufacturing companies in Chinese supply chains, this study proposes and examines the power-relationship commitment-supply chain integration theory model in terms of supplier management. Results indicate that suppliers' use of expert and reward power enhance both manufacturers' normative and instrumental relationship commitment; suppliers' use of coercive power reduces manufacturers' normative relationship commitment. But, suppliers' use of referent power and legitimate power has no significant impact on either instrumental or normative relationship commitment. It also indicates that both types of relationship commitments to suppliers improve supplier integration, but normative relationship commitment has a much stronger

  14. Information flow in the pharmaceutical supply chain.

    Science.gov (United States)

    Yousefi, Nazila; Alibabaei, Ahmad

    2015-01-01

    Managing the supply chain plays an important role in creating competitive advantages for companies. Adequate information flow in supply chain is one of the most important issues in SCM. Therefore, using certain Information Systems can have a significant role in managing and integrating data and information within the supply chain. Pharmaceutical supply chain is more complex than many other supply chains, in the sense that it can affect social and political perspectives. On the other hand, managing the pharmaceutical supply chain is difficult because of its complexity and also government regulations in this field. Although, Iran has progressed a lot in pharmaceutical manufacturing, still there are many unsolved issues in managing the information flow in the pharmaceutical supply chain. In this study, we reviewed the benefits of using different levels of an integrated information system in the supply chain and the possible challenges ahead. PMID:26664401

  15. Configuration management for nuclear power plants

    International Nuclear Information System (INIS)

    Technical configuration management is more than control of documents, their storage and retrieval, it is an integral part of the plant operation and maintenance process encompassing plant structures, systems, components, computer software and other documents important to safe and reliable operation. The technical configuration management system developed by Framatome, France, for the 900 MW and 1300 MW pressurized water reactor series is explained. It includes a suitable document base, a way of continuously updating documents and ensuring conformity to the requirements and software tools to allow document and modification management. Currently (1988) microfilm is used to give access to the information but electronic storage and direct access by means of an optical disc will be provided. The benefits of configuration management are listed. (UK)

  16. Optimizing the order processing of customized products using product configuration

    DEFF Research Database (Denmark)

    Hvam, Lars; Bonev, Martin; Denkena, B.;

    2011-01-01

    . Product configuration based on integrated modular product structure and product family architecture has been recognized as an effective means for implementing mass customization. In order to evaluate the effects of product configuration on order processing, a study has been conducted by the Department...

  17. 储备基地模式下的煤炭供应链整合%Integration of Coal Supply Chain with Mode of Store Base

    Institute of Scientific and Technical Information of China (English)

    高军民

    2012-01-01

    Coal supply and demand market depends on resources, production and consume, coal material stream is essential to the balance of supply and demand market. For quite a long time, the performance of coal supply chain has been limited by too many main bodies, long distance of transportation, various transportation means and low man- agement efficiency of material stream. With Supply Chain Operations Reference medel(SCOR), store bases have been built up at the link point of coal supply chain, coal supply chain strategy alliance with ports as tie has formed. Combined with construction practice of coal store base along rivers and sea coast in recent l0 years by SINOPEC, we come to the conclusion that building up coal store base is very important to optimize and develop coal supply chain.%煤炭供求市场取决于资源、生产和消费等因素,供求市场的平衡离不开煤炭物流环节。长期以来,煤炭供应链的效能受到主体多、运距长、运输方式多样和物流企业管理效率低等因素的制约。运用供应链运作参考模型(Supply-Chain Operations Reference model,简称SCOR模型)在煤炭供应链的节点建立储备基地,并形成了以港口为纽带的煤炭供应链战略联盟。结合中国石油化工集团近10年来在沿江沿海煤炭储备基地的建设实践,得出建立煤炭储备基地对煤炭供应链优化与发展具有重要作用的结论。

  18. Mod $p$ truncated configuration spaces

    OpenAIRE

    Yamaguchi, Kohhei

    2004-01-01

    In this paper we study the homotopy types of mod $p$ truncated configuration spaces. In particular, we investigate a finite dimensional configuration space model for the based loop space of mod $p$ lens space as an application.

  19. Catch Chain

    OpenAIRE

    Talbert, Robert

    2010-01-01

    Catch Chain is a book of poems that traces the journey of a Corrections Officer who attempts to combat issues of isolation, inhumane treatment of inmates and societal rejection in jails by embarking upon a cross-country road trip. However, the same issues the officer initially wrestled with begin cropping up in different cities, on various highways and in a multitude of states. The excitement and adventure of the open road runs parallel to the recurring imprisonment of the guard's mind.

  20. 基于跨境供应链整合的第三方物流海外仓建设%Third-party Logistics Construction of Oversea Location based on Cross-border Supply Chain Integration

    Institute of Scientific and Technical Information of China (English)

    鲁旭

    2016-01-01

    Thought the construction subject of oversea locations can be diversified, the strategic value of the third-party logistics’oversea location is increasingly prominent. From the perspective of cross-border supply chain, the service function extension commencing on middle-end warehousing and developing on tail-end distribution will have the qualitative change effect of integration on the whole cross-border supply chain if it continually expands to head-end transportation. However, the cross-border supply chain integration of the third party logistics is easily influenced by forwarder’s thought, expansion competition, oversea cooperation mode and international line’s development so that the inverse trend of integration is also inevitable. Only with the help of normalizing innovations, boosting construction, reducing intervention and adapting to environment, the oversea location ’s construction can develop along the direction of cross-border supply chain integration and thus play its important strategic role in the cross-border e-commerce era.%尽管海外仓的建设主体可以多样化,但是,以第三方物流公司为主体的海外仓建设的战略价值日益凸显。从跨境供应链的角度来看,第三方物流公司开始于中端仓储、发展于尾程配送的服务功能拓展,如果继续向头程运输延伸的话,就能够对整个跨境供应链产生整合质变的效果。然而,第三方物流公司的跨境供应链整合容易受到货代思维、扩张竞争、海外合作方式以及国际专线发展的影响,从而逆整合的发展趋势难以避免。只有规范海外仓创新、助力海外仓建设、减少海外仓干预、适应海外仓环境,第三方物流公司的海外仓建设才能沿着跨境供应链整合的方向发展,从而在跨境电子商务时代发挥其重要的战略作用。

  1. The all-loop integrable spin-chain for strings on AdS3 × S 3 × T 4: the massive sector

    Science.gov (United States)

    Borsato, Riccardo; Sax, Olof Ohlsson; Sfondrini, Alessandro; Stefanski, Bogdan; Torrielli, Alessandro

    2013-08-01

    We bootstrap the all-loop dynamic S-matrix for the homogeneous (1, 1|2)2 spin-chain believed to correspond to the discretization of the massive modes of string theory on AdS3 × S 3 × T 4. The S-matrix is the tensor product of two copies of the (1|1)2 invariant S-matrix constructed recently for the (2, 1; α)2 chain, and depends on two anti-symmetric dressing phases. We write down the crossing equations that these phases have to satisfy. Furthermore, we present the corresponding Bethe Ansatz, which differs from the one previously conjectured, and discuss how our construction matches several recent perturbative calculations.

  2. The all-loop integrable spin-chain for strings on AdS_3 x S^3 x T^4: the massive sector

    CERN Document Server

    Borsato, Riccardo; Sfondrini, Alessandro; Stefanski, Bogdan; jr.,; Torrielli, Alessandro

    2013-01-01

    We bootstrap the all-loop dynamic S-matrix for the homogeneous psu(1,1|2)^2 spin-chain believed to correspond to the discretization of the massive modes of string theory on AdS_3 x S^3 x T^4. The S-matrix is the tensor product of two copies of the su(1|1)^2 invariant S-matrix constructed recently for the d(2,1;alpha)^2 chain, and depends on two antisymmetric dressing phases. We write down the crossing equations that these phases have to satisfy. Furthermore, we present the corresponding Bethe Ansatz, which differs from the one previously conjectured, and discuss how our construction matches several recent perturbative calculations.

  3. BUSINESS TENDENCIES IN SERVICES WITHIN SUPPLY CHAIN

    OpenAIRE

    Beata Skowron-Grabowska

    2008-01-01

    Supply chain management has been a major component of competitive strategy to enhance organizational productivity and profitability. Client satisfaction and improvement in profitability are two basic goals while organizing supply chain. In the paper author tried to prove that there is a correlation between organization of supply chain and subjective evaluation of economic situation by enterprises. Logistics integration helps enterprises to find their place in the supply chain.

  4. Linking corporate strategy and supply chain management

    OpenAIRE

    Hofmann, Erik

    2009-01-01

    Purpose of this paper: The paper researches the linkages between corporate and supply chain strategy. It represents a stage of an on-going research initiative aimed at providing a framework for understanding systematically the integration of corporate strategy making and supply chain management. Design/methodology/approach: The paper engaged itself in the theory/literature related to strategic and supply chain management. Four generic levels of strategy are linked to supply chain ma...

  5. SCOR模型供应链一体化的得力工具%SCOR Model--Effective Means of Supply Chain Integration

    Institute of Scientific and Technical Information of China (English)

    周勇祥

    2004-01-01

    @@ SCOR(Supply Chain Operations Reference-model)是由供应链协会开发支持,适合于不同工业领域供应链运作的参考模型.它可以帮助企业更好地整合供应链资源,实现从基于职能管理到基于流程管理的转变.

  6. A STUDY OF INTEGRATION OF SUPPLY CHAIN AND REVERSE LOGISTICS IN NEW PRODUCT DESIGN & DEVELOPMENT: A CASE STUDY ON THE BEST PRACTICES IN THE AUTOMOTIVE SECTOR

    OpenAIRE

    Shaikh, Mohammad Ali Raza

    2012-01-01

    A globalized business environment and the ever changing customer demand are forcing many companies to change from their traditional way of mass manufacturing to the mass customized way. Manufacturing circle presently is going through a complete change in practice due to many reasons ranging from customer oriented products, short product life cycle, laws and regulations, stakeholders requirements and competition. Hence, the companies are trying to develop sustainable supply chain. For this pur...

  7. Pre-requisites for a successful supply chain integration – A case study of how RFID usage in the transport process can contribute

    OpenAIRE

    Mirmoradi, Milad; Nyström, Henric

    2012-01-01

    This Master thesis has been made for Volvo Group Trucks Operations, Logistics Services (VGLS) in Gothenburg. Other companies within the Volvo Group and Volvo Car Corporation (VCC) have been involved during the process, including Volvo Trucks Umeå (VTU), Volvo Trucks Tuve (VTT) and Volvo Cars Body Components (VCBC) in Olofström. The thesis has examined activities within the supply chain process between three factories, VCBC – VTU – VTT. The different companies at each location serve different ...

  8. Integrated compound profiling screens identify the mitochondrial electron transport chain as the molecular target of the natural products manassantin, sesquicillin, and arctigenin.

    Science.gov (United States)

    Lai, Kevin; Selinger, Douglas W; Solomon, Jonathan M; Wu, Hua; Schmitt, Esther; Serluca, Fabrizio C; Curtis, Daniel; Benson, John D

    2013-01-18

    Phenotypic compound screens can be used to identify novel targets in signaling pathways and disease processes, but the usefulness of these screens depends on the ability to quickly determine the target and mechanism of action of the molecules identified as hits. One fast route to discovering the mechanism of action of a compound is to profile its properties and to match this profile with those of compounds of known mechanism of action. In this work, the Novartis collection of over 12,000 pure natural products was screened for effects on early zebrafish development. The largest phenotypic class of hits, which caused developmental arrest without necrosis, contained known electron transport chain inhibitors and many compounds of unknown mechanism of action. High-throughput transcriptional profiling revealed that these compounds are mechanistically related to one another. Metabolic and biochemical assays confirmed that all of the molecules that induced developmental arrest without necrosis inhibited the electron transport chain. These experiments demonstrate that the electron transport chain is the target of the natural products manassantin, sesquicillin, and arctigenin. The overlap between the zebrafish and transcriptional profiling screens was not perfect, indicating that multiple profiling screens are necessary to fully characterize molecules of unknown function. Together, zebrafish screening and transcriptional profiling represent sensitive and scalable approaches for identifying bioactive compounds and elucidating their mechanism of action. PMID:23138533

  9. Counterintuitive Behaviors in Configuration Mixing

    CERN Document Server

    Yu, Xiaofei; Robinson, Shadow

    2016-01-01

    By starting with a simple configurations of 2 neutrons in a single j shell we hare able to learn the effects of high lying configurations on physical properties such as nuclear magnetic g factors. Some counterintuitive results are found when both high lying spin orbit partners are allowed to admix with the basic configuration.

  10. Configuration files processing in Sonix+

    International Nuclear Information System (INIS)

    The work is dedicated to configuration files processing in software package Sonix+. The work contains a list of software data processing drawbacks and their solutions. The structure of configuration files was formalized and the model providing editing of configurations files was developed during the work. The document contains logic of functions related with data processing and description of additional functions for developers.

  11. Configuration spaces of tori

    OpenAIRE

    Feler, Yoel

    2006-01-01

    The configuration space C^n of unordered n-tuples of distinct points on a torus T^2 is a non-singular complex algebraic variety. We study holomorphic self-maps of C^n and prove that for n>4 any such map F either carries the whole of C^n into an orbit of the diagonal Aut(T^2) action in C^n or is of the form F(x)=T(x)x for some holomorphic map T:C^n-->Aut(T^2). We also prove that for n>4 any endomorphism of the torus braid group B_n(T^2) with a non-abelian image preserves the pure torus braid g...

  12. Configurable Aperture Space Telescope

    Science.gov (United States)

    Ennico, Kimberly; Bendek, Eduardo

    2015-01-01

    In December 2014, we were awarded Center Innovation Fund to evaluate an optical and mechanical concept for a novel implementation of a segmented telescope based on modular, interconnected small sats (satlets). The concept is called CAST, a Configurable Aperture Space Telescope. With a current TRL is 2 we will aim to reach TLR 3 in Sept 2015 by demonstrating a 2x2 mirror system to validate our optical model and error budget, provide straw man mechanical architecture and structural damping analyses, and derive future satlet-based observatory performance requirements. CAST provides an alternative access to visible and/or UV wavelength space telescope with 1-meter or larger aperture for NASA SMD Astrophysics and Planetary Science community after the retirement of HST

  13. Ramjets: Airframe integration

    NARCIS (Netherlands)

    Moerel, J.L.; Halswijk, W.

    2010-01-01

    These notes deal with the integration of a (sc)ramjet engine in either an axisymmetric or a waverider type of cruise missile configuration. The integration aspects relate to the integration of the external and internal flow paths in geometrical configurations that are being considered worldwide. Int

  14. Space station configuration and flight dynamics identification

    Science.gov (United States)

    Metter, E.; Milman, M. H.

    1985-01-01

    The Space Station will be assembled in low earth orbit by a combination of deployable and space erectable modules that are progressively integrated during successive flights of the Shuttle. The crew assisted space construction will result in a configuration which is a large scale composite of structural elements having connectivity with a wide range of possible end conditions and imprecisely known dynamic characteristics. The generic applications of Flight Dynamics Identification to the candidate Space Station configurations currently under consideration are described. Identification functions are categorized, and the various methods for extracting parameter estimates are correlated with the sensing of parameter estimates are correlated with the sensing of specific characteristics of interest to both engineering subsystems and users of the Station's commercial and scientific facilities. Onboard implementation architecture and constraints are discussed from the viewpoint of maximizing integration of the Identification process with the flight subsystem's data and signal flow.

  15. Absolute configuration of micromelin

    Directory of Open Access Journals (Sweden)

    Hoong-Kun Fun

    2011-07-01

    Full Text Available The title compound {systematic name: 7-methoxy-6-[(1R,2R,5R-5-methyl-4-oxo-3,6-dioxabicyclo[3.1.0]hexan-2-yl]-2H-chromen-2-one}, C15H12O6, is a coumarin, which was isolated from the roots of Micromelum glanduliferum. There are two molecules in the asymmetric unit with slight differences in bond angles. In both molecules, the furan ring adopts a flattened envelope conformation. In the crystal, molecules are linked by weak C—H...O interactions into chains along the a axis. Aromatic π–π stacking interactions with centroid–centroid distances in the range 3.6995 (11–3.8069 (11 Å and C...O short contacts [3.030 (2–3.171 (3 Å] also occur.

  16. 互动式整合营销传播在供应链管理中的应用模式研究%Research on Application Mode of Interactive Integrated Marketing Communications in Supply Chain Management

    Institute of Scientific and Technical Information of China (English)

    申光龙; 杨静; 金洪雨; 李城根

    2012-01-01

    基于互动媒体、数据库及利害关系管理的互动式整合营销传播(Interactive IMC)已经成为非营利组织创造价值、获得资源的重要战略手段.在阐述互动式营销传播的基础上,引入了供应链的价值模式,最后详细分析了互动式整合营销在供应链管理中的运用.%Due to the developing information technology (IT) and Internet, integrated marketing communications achieves new breakthrough in academic and professional fields and the environment of corporate supply chain management has been profoundly changed. Moreover, interactive IMC, based on interactive media, database management and relationship management, has already become an important strategic means that non-profit organizations create value and obtain resources. In this paper, we first explained the features of Interactive IMC and then introduced the value activity model of a supply chain. Finally, we discussed in detail how to apply interactive IMC to supply chain management.

  17. 供应链整合标杆企业—利丰公司经营模式研究%Study on Operational Mode of Li&Fung, a Benchmarking Enterprise in Supply Chain Integration

    Institute of Scientific and Technical Information of China (English)

    谢政谕

    2011-01-01

    对供应链整合的标杆企业利丰公司进行了案例分析,将其经营模式归纳为明确的定位与业务范围、纵向供应链布局与横向全球化布局三个方面,并且分析了支撑其经营模式的核心竞争力,包括产品知识能力、流程设计能力、增值服务能力、信息能力、供应链管理能力、组织再造能力、广大的供货商与客户网络.%The paper includes a case study of the supply chain integration benchmarking enterprise-Li&Fung company, and summarizes its business model into three key aspects: specific positioning and business scope, vertical supply chain hierarchy, and horizontal global layout. It also analyzes the core competences supporting its business model, which include product knowledge capability, process design capability, value-added services capability, information capability, supply chain management capability, organization reengineering capability, and expansive suppliers and customers networks.

  18. Managing the Global Supply Chain

    DEFF Research Database (Denmark)

    Hsuan, Juliana; Skjøtt-Larsen, Tage; Kinra, Aseem;

    The world today faces global competition. The supply chain is vital part of the globalization process. Presenting a global view of the scope and complexity of supply chain management, this book reflects the rapid change that has taken place within the supply chain and its environment. This new...... edition has been fully updated with recent changes in concepts, technology and practice. Integration and collaboration are keywords in future competition. Firms must be agile and lean at the same time. The book gives an insightful overview of the conceptual foundations of the global supply chain, as...... well as current examples of best practice of managing supply chains in a global context....

  19. Managing the Global Supply Chain

    DEFF Research Database (Denmark)

    Skjøtt-Larsen, Tage; Schary, Philip B.; Mikkola, Juliana Hsuan;

    The world today faces global competition. The supply chain is vital part of the globalization process. Presenting a global view of the scope and complexity of supply chain management, this book reflects the rapid change that has taken place within the supply chain and its environment. This new...... well as current examples of best practice of managing supply chains in a global context....... edition has been fully updated with recent changes in concepts, technology and practice. Integration and collaboration are keywords in future competition. Firms must be agile and lean at the same time. The book gives an insightful overview of the conceptual foundations of the global supply chain, as...

  20. Computer Aided Aerodynamic Design of Missile Configuration

    OpenAIRE

    Panneerselvam, S; P. Theerthamalai; A.K. Sarkar

    1987-01-01

    Aerodynamic configurations of tactical missiles have to produce the required lateral force with minimum time lag to meet the required manoeuvability and response time. The present design which is mainly based on linearised potential flow involves (a) indentification of critical design points, (b) design of lifting components and their integration with mutual interference, (c) evaluation of aerodynamic characteristics, (d) checking its adequacy at otherpoints, (e) optimization of parameters an...