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Sixth-order Compact Extended Trapezoidal Rules for 2D Schr(o)dinger Equation

数学研究 2015年第1期48卷 30-52页

作者： Xiao-Hui Liu Yu-Jiang Wu Jin-Yun Yuan Raimundo J.B.de Sampaio Yan-Tao Wang School of Mathematics and Statistics Lanzhou University Lanzhou 730000 GansuP.R.China School of Mathematics and Statistics Lanzhou University Lanzhou 730000 GansuP.R.China Key Laboratory of Applied Mathematics and Complex Systems Lanzhou 730000Gansu P.R.China Department of Mathematics Federal University of Paraná Centro Politecnico CP:19.081 81531-980 Curitiba PR Brazil Graduate Program in Production and Systems Engineering Pontifical Catholic University of Paraná CEP: 81611-970 Curitiba PR Brazil

Based on high-order linear multistep methods (LMMs), we use the class of extended trapezoidal rules (ETRs) to solve boundary value problems of ordinary differential equations (ODEs), whose numerical solutions can be approximated by boundary value methods (BVMs). Then we combine this technique with fourth-order Padé compact approximation to discrete 2D Schrödinger equation. We propose a scheme with sixth-order accuracy in time and fourth-order accuracy in space. It is unconditionally stable due to the favourable property of BVMs and ETRs. Furthermore, with Richardson extrapolation, we can increase the scheme to order 6 accuracy both in time and space. Numerical results are presented to illustrate the accuracy of our scheme.

关键词： Schr(o)dinger equation BVMs ETRs compact scheme Richardson extrapolation

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The impact of climate change on global wheat production

The impact of climate change on global wheat production

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第七届国际作物科学大会

作者： S.Asseng P.Martre A.Maiorano R.P.Rtter G.O'Leary G.Fitzgerald C.Girousse M.A.Baber M.P.Reynolds A.M.S.Kheir P.J.Thorburn K.Waha A.C.Ruane P.K.Aggarwal M.Ahmed J.Balkovic B.Basso A.Berger C.Biernath M.Bindi D.Cammarano A.J.Challinor G.De Sanctis J.Doltra B.Dumont E.Eyshi Rezaei E.Fereres R.Ferrise M.Garcia-Vila S.Gayler G.Hoogenboom R.C.Izaurralde M.Jabloun C.D.Jones B.T.Kassie K.C.Kersebaum C.Klein A.K.Koehler B.Liu S.Minoli M.Montesino San Martin C.Muller S.Naresh Kumar C.Nendel J.E.Olesen T.Palosuo J.R.Porter E.Priesack D.Ripoche M.A.Semenov C.Stockle P.Stratonovitch T.Streck I.Supit F.Tao M.Van der Velde D.Wallach E.Wang H.Webber J.Wolf P.Woli Z.Zhang Y.Zhu F.Ewert Agricultural & Biological Engineering Department University of Florida UMR GDEC INRAUniversite Blaise Pascal World Food Crops Breeding(wheat & oat) 3105 McCarty Hall BDepartment of AgronomyIFASUniversity of Florida CIMMYT Int.Adpo D.F.Mexico CSIRO Agriculture Flagship CSIRO Queensland Biosci Precinct St Lucia CGIAR Research Program on Climate Change Agriculture and Food SecurityInternational Water Management Institute Biological Systems Engineering Washington State University Department of agronomy PMAS Arid Agriculture University Comenius University Faculty of Natural ScienceDepartment of Soil Science Department of Geological Sciences Michigan State University W.K.Kellogg Biological Station Michigan State University Department of Agri-food Production and Environmental Sciences(DISPAA) University of Florence Institute for Climate and Atmospheric Science School of Earth and EnvironmentUniversity of Leeds CGIAR-ESSP Program on Climate Change Agriculture and Food SecurityInternational Centre for Tropical Agriculture(CIAT) Institute of Crop Science and Resource Conservation INRES University of Bonn IAS-CSIC and University of Cordoba Institute of Soil Science and Land Evaluation University of Hohenheim Department of Geographical Sciences University of Maryland Texas A&M AgriLife Research and Extension Center Texas A&M University Department of Agroecology Aarhus University Institute of Biochemical Plant Pathology Helmholtz Zentrum Munchen-German Research Center for Environmental Health College of Agriculture Nanjing Agricultural University Potsdam Institute for Climate Impact Research University of Copenhagen Department of Plant & Environmental Science Centre for Environment Science and Climate Resilient Agriculture Indian Agricultural Research InstituteIARI PUSA University of Greenwich Natural Resources Institute INRA US1116 AgroClim Computational and Systems Biology Department Rothamsted Research Plant Production Systems & Earth System Science Wageningen University Institute of Geographical Sciences and Natu

The Agricultural Model Intercomparison and Improvement Project has shown that many wheat crop models can simulate grain yields and growth dynamics under a range of growing conditions,but simulation results often *** model uncertainties increase with higher temperatures and with combined increased temperature and CO,however,multi-model ensemble medians have proven with field observations to be a good predictor of observed data under various growing *** multi-model ensemble median simulations showed that global wheat production declines by 6% for each degree of global temperature *** simulated impact is similar to temperature impact assessments using statistical regression methods with aggregated farm *** on the temperature impact study,new simulations of increased temperature were combined with elevated CO and rainfall changes to assess their impact on yield and protein and included the possible role of genetic adaptations to climate change at local,regional and global scales.

关键词： Global foods security Climate change Adaptation Wheat

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Sustainable Product Design: The Development of a Conceptual Model

Sustainable Product Design: The Development of a Conceptual ...

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2014 International Conference on Experimental and Applied Mechanics(EAM 2014)

作者： Pamela Teixeira Fernandes Osíris Canciglieri Junior Pontifical Catholic University of Paraná Polytechnic School Graduate Program in Production Engineering and Systems - PUCPR/PPGEPS

This paper presents the development of a conceptual model for Method Integrated Product Development Oriented for *** proposed method aims to assist designers in the development process, generating design alternatives directed at sustainable development and full life cycle of the *** research was limited to application of the method to a product category through a case *** research objective is to present the process of development and application of the *** results indicate that the proposed method provides the development process to insert the rationale for the development of sustainability-oriented products as a complement to traditional design requirements in existing models of product *** is believed that its application to other product designs is promising for the development of sustainable solutions.

关键词： Sustainable Product Development Product Categories Strategies DFE

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Sustainable and Inclusive Development Products Applied to Form Engineers in the Citizenship

Sustainable and Inclusive Development Products Applied to Fo...

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2014 International Conference on Experimental and Applied Mechanics(EAM 2014)

作者： Maria Lucia Miyake Okumura Osiris Canciglieri Junior Pontifical Catholic University of Paraná Polytechnic School Graduate Program in Production Engineering and Systems – PUCPR/PPGEPS.

This paper presents a multiple case study concerning to the Integrated Product Development Process(IPDP) that involves the concepts of environmental sustainability and social inclusion to build solar water heating system made of discarded and recyclable materials in a way that People with Visual deficiency(Pw VD) can participate in its *** research proposes that engineering courses in a near future adopt the aspect of Citizenship Education systematically, contextualizing environmental impact reduction and social inclusion of people with *** technical procedure of the study was delineated according to IPDP phases defined in two multidisciplinary strands leading to raw materials data collection through recycling and manufacturability with accessibility process to develop the product *** analysis of the results presents the tooling developed for manufacturing with accessibility of people with visual impairments and the efficiency of the prototype *** the end, it is placed the relevant notes observed during the research and sustainable assignments in social and environmental dimensions for the education of engineering professionals.

关键词： Product Development Environmental Sustainability Social Inclusion Citizenship Education Solar Water Heating System Person with Visual Disability

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Greening the supply chain: A model for green performance assesment 22

Greening the supply chain: A model for green performance ass...

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22nd International Conference on production Research, ICPR 2013

作者： Sellitto, M.A. Borchardt, M. Pereira, G.M. Silva, R.I. Production and Systems Engineering Graduate Program UNISINOS São Leopoldo RS Brazil

The purpose of this article is to introduce and test a model for green performance assessment in supply chains. The research method was the qualitative modeling. By literature review a model was proposed, consisting of three constructs described and appraised by categorical indicators: green strategy;green innovation;and green operations. The model originated a scale, with five degrees for the measurement of the indicators: very good=1;good=0.75;neutral=0.5;bad=0.25;very bad=0. An application was made in a supply chain of the footwear industry. Focal company managers were asked to distribute importance among the constructs and fulfill the scale. Outcomes obtained, with uniform distribution, and weighted by AHP methods, reached close to 40% of the maximum possible. The worst-performing construct and indicators were operations, reverse logistics and green distribution. Actions have been proposed to improve them.

关键词： Environmental management

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Model for supply chain performance measurement 22

Model for supply chain performance measurement

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22nd International Conference on production Research, ICPR 2013

作者： Sellitto, M.A. Pereira, G.M. Borchardt, M. Silva, R.I. Production and Systems Engineering Graduate Program UNISINOS São Leopoldo RS Brazil

This article presents a model for performance measurement in supply chains. The methodology had two-steps: a qualitative part to identify constructs and indicators and a quantitative one to measure them. The model has two dimensions: SCOR model process: source, make, deliver, and return;and priorities: cost, quality, delivery, flexibility. A 4 x 4 matrix resulted, weighted by AHP. In the cells, indicators, with ranges and five categories [very good, good, neutral, bad, very bad] were allocated to appraise the priority in the process. The ranges were set in the planning process of SCOR. An application was done in the hard core of a supply chain of the footwear industry, including 72 indicators in four suppliers;the focal company;three distribution channels;and a return channel. The SC overall performance reached near 80% of the maximum possible value. Worst performance was flexibility in deliver and delivery in make.

关键词： Supply chains

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production of charcoal: Industrial unit against handcrafted model

Production of charcoal: Industrial unit against handcrafted ...

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2013 Portland International Conference on Management of engineering and Technology, PICMET 2013

作者： Hatakeyama, Kazuo De Fatima Oliveira Miranda Santos, Sueli Universidade Do Vale Dos Rio Dos Sinos Postgraduate Program in Production Engineering and Systems São Leopoldo Brazil Universidade Tecnologica Federal Do Parana Postgraduate Program in Production Engineering Ponta Grossa Brazil

ISBN: (纸本)9781890843274

Brazil responds for an approximately one third of the world's charcoal production, with 90% is used to produce pig iron, iron alloys, among others. Surely, 70% of the charcoal is still produced by traditional handicraft method, with almost half of the firewood from the native forests. The pressure for ecologically correct and self-sustainable production has driven the search for cleaner and more efficient technologies. These can contribute to change the present charcoal production model in Brazil. This paper intends to show the research on a metallic vertical cylinder for a charcoal production unit as a model that can meet the basic requirements of being ecologically correct, socially fair, economically and then be culturally accepted to replace the traditional model. According to the sustainability pillars, this model has shown the possibility of a 25% of firewood saving, pointing out to an economical feasibility, an ecologically correct procedure and then to comply with the Brazilian labor legislation, achieving a socially fair condition for the work force. Finally it was evidenced that the process' crucial point is to burn the dirt smoke generated during the wood's carbonization process and the use of the generated heat for a previous drying of the firewood. © 2013 PICMET.

关键词： Charcoal

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Distributed team's performance measurement capabilities: A model to evaluate systematic literature review result 22

Distributed team's performance measurement capabilities: A m...

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22nd International Conference on production Research, ICPR 2013

作者： Ferreira, P. Pinheiro, E. Gouvea, S. Pontifical University of Parana Graduate Program in Production and Systems Engineering R. Imaculada Conceicao 1155 Curitiba Parana Brazil

Companies are more commonly adopting the distributed teams' model, in order to increase their knowledge and skill set. In doing so the company will obtain several benefits, but it will lose its personal touch in managing their employees. Aiming to verify if this tradeoff is beneficial for the company, Performance Measurement systems are more and more being applied to distributed teams and to follow this growth researchers are consistently focusing on this area. Due to this focus the count of articles reporting developments in the required capabilities to form and manage distributed teams performance measurement system increases as well. Along the way some researchers are developing/applying different types of literature review on the subject in order to identify its growth and the main areas the topic is growing. Following this trend the author performed a systematic review on the theme "Which organizational capabilities/competences a company must have in order to manage/develop distributed teams performance?". This paper aims to present a model to evaluate such literature review in order to quantify and qualify the results to make it even more clearly to other researchers. Based on the results of the research, others will be able to compare the research areas and contribute with its development.

关键词： Capabilities Develop Distributed teams Performance measurement system

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Photovoltaic Generation Potential of Paraná State, Brazil – A Comparative Analysis with European Countries

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Energy Procedia 2014年 57卷 725-734页

作者： Gerson Maximo Tiepolo Jair Urbanetz Junior Osiris Canciglieri Junior Trajano Viana Department of Electrical Engineering Technological Federal University of Paraná – UTFPR Avenida Sete de Setembro 3165 80230-901 Curitiba Paraná Brazil Graduate Program in Production Engineering and Systems – PPGEPS Pontifical Catholic University of Parana - PUCPR Rua Imaculada Conceição 115 80215-901 Curitiba Paraná Brazil Federal Center of Technological Education - CEFET/RJ Avenida Maracanã 229 20271-110 Rio de Janeiro Brazil

The theme of sustainable development has increasingly impacted the spheres of Brazilian society and has contributed to greater awareness to the need of natural resources conservation as well as issues on how to continue promoting socio-economic development of regions. One of the key issues for sustainable development is the generation of electricity with more use of renewable sources and, therefore, less environmental degradation. In this scenario, historically, Paraná State of Brazil has been one of the largest producers of electricity in the country, almost entirely from hydraulic source, due to the large existing river basin in the state. However, the use of this source in Brazil is declining due to depletion of water potential and also the pressure of society with respect to environmental, social and economic impacts caused by damming of rivers and flooding of cities and areas to form large reservoirs. To overcome these limitations, other sources have been studied and used, such as biomass and wind. Photovoltaic generation has been contemplated in Brazilian government policies only to supply electricity with off-grid systems in remote locations. However, due to the recent Resolution 482/2012 of ANEEL (Brazilian Electricity Regulatory Agency), which establishes rules for micro and mini-generation of electricity, it is possible that consumers install grid connected photovoltaic systems up to 1 MWp, as have been widely used in the urban environment installed or integrated on roofs as a form of distributed generation, particularly in Europe, where counts with installed capacity in GW range, while in Brazil it counts only with a few MW. Given this new perspective of growth of the Brazilian photovoltaic electricity generation this paper presents the potential of solar photovoltaic power generation in Paraná State, Brazil, with a comparative analysis with the potential presented by some European countries. The presented solar and photovoltaic maps uses irradiation data

关键词： Sustainable Development Renewable Energy Photovoltaic Generation Distributed Generation Public Policy

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Microscopic simulation analysis of Mainstream Traffic Flow Control with Variable Speed Limits

Microscopic simulation analysis of Mainstream Traffic Flow C...

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2013 16th International IEEE Conference on Intelligent Transportation systems: Intelligent Transportation systems for All Modes, ITSC 2013

作者： Muller, Eduardo R. Carlson, Rodrigo C. Kraus, Werner Papageorgiou, Markos Post-graduate Program in Automation and Systems Engineering Federal University of Santa Catarina Florianópolis-SC 88040-900 Brazil Post-graduate Program in Automation and Systems Engineering Center for Mobility Engineering Federal University of Santa Catarina Joinville-SC 89218-000 Brazil Department of Production Engineering and Managament Technical University of Crete Chania 73132 Greece

ISBN: (纸本)9781479929146

Mainstream Traffic Flow Control (MTFC) with Variable Speed Limits (VSL) is a freeway traffic control method which aims to maximize throughput by regulating the mainstream flow upstream from a bottleneck. Recent studies in a macroscopic simulator have shown optimal and feedback MTFC potential to improve traffic conditions. In this paper, local feedback MTFC is applied in microscopic simulation for an on-ramp merge bottleneck. Traffic behavior reveals important aspects that had not been previously captured in macroscopic simulation. Mainly, the more realistic VSL application at specific points instead of along an entire freeway section produces a slower traffic response to speed limit changes. In addition, the nonlinear speed limit-flow relation observed in the microscopic model is more pronounced than what was observed at the macroscopic level. After appropriate modifications in the control law significant improvements in traffic conditions were obtained. © 2013 IEEE.

关键词： Feedback

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