Academic literature on the topic 'Location choice problem'

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Journal articles on the topic "Location choice problem"

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Zomer, Jordi, Nikola Bešinović, Mathijs M. de Weerdt, and Rob M. P. Goverde. "The Maintenance Location Choice Problem for railway rolling stock." Journal of Rail Transport Planning & Management 20 (December 2021): 100268. http://dx.doi.org/10.1016/j.jrtpm.2021.100268.

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Aboolian, Robert, Oded Berman, and Majid Karimi. "Probabilistic Set Covering Location Problem in Congested Networks." Transportation Science 56, no. 2 (March 2022): 528–42. http://dx.doi.org/10.1287/trsc.2021.1096.

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This paper focuses on designing a facility network, taking into account that the system may be congested. The objective is to minimize the overall fixed and service capacity costs, subject to the constraints that for any demand the disutility from travel and waiting times (measured as the weighted sum of the travel time from a demand to the facility serving that demand and the average waiting time at the facility) cannot exceed a predefined maximum allowed level (measured in units of time). We develop an analytical framework for the problem that determines the optimal set of facilities and assigns each facility a service rate (service capacity). In our setting, the consumers would like to maximize their utility (minimize their disutility) when choosing which facility to patronize. Therefore, the eventual choice of facilities is a user-equilibrium problem, where at equilibrium, consumers do not have any incentive to change their choices. The problem is formulated as a nonlinear mixed-integer program. We show how to linearize the nonlinear constraints and solve instead a mixed-integer linear problem, which can be solved efficiently.
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Zakhry, Karim, Jiang Xin-ying, and Mohammed Ismail Alhussam. "Study on Location Choice for NAFFCO Company in Jiangsu Province China." Business and Economic Research 10, no. 1 (February 22, 2020): 260. http://dx.doi.org/10.5296/ber.v10i1.16510.

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The research presents Fuzzy set multi-criteria decision-making approach combined by Delphi method (ADM) to facilitate location decision. Whereas the preference ranking of alternatives importance of the criteria was obtained by (ADM) then obtained the right decision by applying Fuzzy set method. The applicability of the recommended methods was given on NAFFCO firefighting company location selection problem. The importance of this study is that it presented as followed: it is the first usage of the mixed methodologies in the area of location selection (Jiangsu province) that focusing on market size(MS), labor productivity(LP), knowledge(KN), and transportation(T) to facilitate location decision. Second the presented content of methodologies can be used to decide the important weight of the existed variables. Third, reduce the risks that can be faced in making the location decision to gain a fruitful location decision. Fourth, it can be used to facilitate location selection within unlimited locations and unlimited criteria.
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Yuan, Quan. "Environmental Justice in Warehousing Location." Journal of Planning Literature 33, no. 3 (February 2, 2018): 287–98. http://dx.doi.org/10.1177/0885412217753841.

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With the rapid spatial expansion of the warehousing industry in major metropolitan areas, environmental impacts associated with warehousing activities have been growing in the recent decades. This study focuses on the disproportionate distribution of warehousing facilities in disadvantaged neighborhoods and discusses how the disparities result from the interactions between various socioeconomic processes. From the perspective of environmental justice, warehousing-related environmental hazards affect the spatial relationship between warehouses and local communities. The changing factors in the firm location choice of warehousing facilities and the housing location choice of disadvantaged population jointly lead to the environmental justice problem in warehousing location.
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Guo, Jessica Y., and Chandra R. Bhat. "Modifiable Areal Units: Problem or Perception in Modeling of Residential Location Choice?" Transportation Research Record: Journal of the Transportation Research Board 1898, no. 1 (January 2004): 138–47. http://dx.doi.org/10.3141/1898-17.

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Beresnev, V. L. "On the competitive facility location problem with a free choice of suppliers." Automation and Remote Control 75, no. 4 (April 2014): 668–76. http://dx.doi.org/10.1134/s0005117914040079.

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Etebari, Farhad. "A column generation algorithm for the choice-based congested location-pricing problem." Computers & Industrial Engineering 130 (April 2019): 687–98. http://dx.doi.org/10.1016/j.cie.2019.03.023.

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El-Araby, Ahmed, Ibrahim Sabry, and Ahmed El-Assal. "A Comparative Study of Using MCDM Methods Integrated with Entropy Weight Method for Evaluating Facility Location Problem." Operational Research in Engineering Sciences: Theory and Applications 5, no. 1 (April 20, 2022): 121–38. http://dx.doi.org/10.31181/oresta250322151a.

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The location selection of facilities became a major interest for the organizations to establish their planned business for a long period of time. The choice of the best location among a set of candidate locations is a complex process. Although the multiple criteria decision making (MCDM) methods are applicable for location selection problems, different solutions can be obtained using different MCDM methods. Thus, a comparative study between four different MCDM methods was applied within numerical example to show the deviations in ranking of the alternatives that occurs when different methods are used. The weights of attributes are assigned using objective method namely Entropy weight method. The rank disagreements are expressed using spearman`s correlation coefficients.
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Liu, Huasheng, Yu Li, Chongyu Zhang, Jin Li, Xiaowen Li, and Yuqi Zhao. "Electric Vehicle Charging Station Location Model considering Charging Choice Behavior and Range Anxiety." Sustainability 14, no. 7 (April 1, 2022): 4213. http://dx.doi.org/10.3390/su14074213.

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Electric vehicles (EVs) have the advantages of low pollution, low energy consumption, and high energy efficiency, so they are highly valued by governments, enterprises, and consumers. However, the promotion and use of electric vehicles is restricted to a certain extent because of their limited range. This paper selects electric vehicle intercity medium- and long-distance travel as the research object, and takes the classical flow-capturing location problem as the theoretical basis for the expressway network or national highway network. This paper also considers the driver’s charging choice behavior and range anxiety, studies the electric vehicle charging station location problem, establishes the charging station location model, and uses the Tabu search algorithm to solve the problem. Finally, the effectiveness of the model and algorithm is verified by empirical analysis. The results show that the charging station location model considering the driver’s charging choice behavior and range anxiety performs better.
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Miralinaghi, Mohammad, Yingyan Lou, Burcu B. Keskin, Amirali Zarrinmehr, and Ramin Shabanpour. "Refueling station location problem with traffic deviation considering route choice and demand uncertainty." International Journal of Hydrogen Energy 42, no. 5 (February 2017): 3335–51. http://dx.doi.org/10.1016/j.ijhydene.2016.12.137.

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Dissertations / Theses on the topic "Location choice problem"

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Krüger, Jan. "Models for the location decision for a combined cycle power plant : basic principles for solving the decision problem of the choice of location for a feasibility study of gas-fired power plants." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/326467.

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The present thesis deals with the foundations for solving the decision problem of site selection for a feasibility study of gas-fired power plants, based on realistic and practical statements, under a business approach. The analysis of different theories and the investigation of site-relevant decision criteria has illustrated the broad range of site-specific factors and criteria that are to be taken into account. On the basis of existing projects, in which site theories were analysed for various industries, the present research project thus lays a new foundation for an extended specific approach in the area of electricity generation in gas-fired power plants. For gas-fired power plants, IEA anticipates a major increase, but otherwise notes that renewables and nuclear power account for more than half of all the new capacity added worldwide until 2040. Due to the low investment costs per KW of installed capacity, the high efficiency factor, the low CO2-emissions and the relatively short construction times, a large number of gas and steam power plants are planned or are already under construction in Europe. A lot of countries have been focussing on liquefaction of natural gas (LNG) for several years. The physical properties of LNG facilitate its transport on tankers to the ports of destination and / or power plants, where the natural gas is returned to its gaseous state. Thus, LNG offers a practical alternative to the gas transport by pipelines and a possibility to put the procurement structure on a broader basis. This, in turn, will lead to new alternatives for the choice of sites. Projects like the Baltic pipeline or the Nabuko project offer the prospect of a greater security of supply. The study considers the impact of measures to secure supply as decentralised generation and the use of renewable energies for power generation. The expansion targets of the EU 15 countries of 2004 and the values in each EU member country resulted in an indicative target value of around 20% of the share of renewable energies in the gross electricity consumption for the EU 25 in 2010. The political implementation in the individual EU 25 countries is one of the criteria for the choice of sites for power plant projects within Europe. The importance of the international electricity trade for the liberalised electricity market in Europe is stressed. It may include the promotion of the Europe-wide competition in the generation of electricity, increasing the efficient use of the existing capacities in the power plant fleet, and expansion of the cross-border power transfer capacities between the individual European states. It is also essential good cooperation of all participants on the energy market, for the development of an efficient power plant fleet in Europe and finally, for the success of each individual company.The survey method used in the self-designed empirical questionnaire has proven successful in the present study. The extension of the quantitative investment calculation by a refined qualitative evaluation and decision process and the introduction of a modified utility analysis rightly seem to claim their place in such a paradigm. On the basis of empirical material, a detailed characterization of the weighting of site criteria was performed. As a result of this it was found that the criteria weighting for a site decision is a multipersonal process, in which the behaviour of the subjective or restricted rationality of the players involved does not allow for a definite conclusion, but only provides a conclusion on tendencies. However, it could be proved that the subjective component is moderated by a multipersonal process and thus, by forming collective judgements instead of individual judgements. Over time, restrictions change, new energy concepts and technologies are developed, decision criteria and parameters vary. This induces permanent adaptation and further optimization of the present approach.
La presente tesis trata sobre las bases para la solución del problema de decisión de la selección del emplazamiento para un estudio de viabilidad de las plantas eléctricas de gas, basado en declaraciones realistas y prácticas, bajo un enfoque de negocio. El análisis de las diferentes teorías y la investigación de criterios de decisión relevantes ha ilustrado la amplia gama de factores específicos del lugar y los criterios que han de ser tenidos en cuenta. Sobre la base de los proyectos existentes, en los que se analizaron las teorías de selección de sitio para diversas industrias, el presente proyecto de investigación establece una nueva base para un enfoque específico en el área de generación de electricidad en centrales eléctricas de gas. Para las plantas eléctricas a gas, la AIE prevé un aumento importante de capacidades, y señala que las energías renovables y la energía nuclear cuenta con más de la mitad de toda la nueva capacidad añadida en todo el mundo hasta el año 2040. Debido a los bajos costos de inversión por kW de potencia instalada, el alto factor de eficiencia, las bajas emisiones de CO2 y los tiempos de construcción relativamente cortos, un gran número de plantas usando gas ya están en construcción en Europa. Una gran cantidad de países se han centrando en la licuefacción del gas natural (GNL) desde hace varios años. Las propiedades físicas de GNL facilitar su transporte en barcos a los puertos de destino, donde el gas natural se evapora a su estado gaseoso. El GNL ofrece una alternativa práctica para el transporte de gas a través de gasoductos y una posibilidad de poner la estructura de adquisición sobre una base más amplia. Esto, a su vez, dará lugar a nuevas alternativas para la elección de los sitios. Proyectos como el oleoducto del Báltico o el proyecto Nabuko ofrecen la perspectiva de una mayor seguridad del suministro. El estudio considera el impacto de las medidas para garantizar el suministro como la generación descentralizada y el uso de energías renovables para la generación de energía. Las metas de expansión de la UE de 15 países de 2004 y los valores de cada país miembro de la UE dio lugar a un valor objetivo indicativo de alrededor del 20% de la cuota de las energías renovables en el consumo bruto de electricidad de la UE-25 en 2010. La puesta en práctica política individuales en cada uno de 25 países de la UE, es uno de los criterios para la selección de sitios para proyectos de plantas de energía en Europa. La importancia del comercio internacional de electricidad para el mercado eléctrico liberalizado en Europa se destaca en el trabajo, además de la promoción de la competencia a escala europea en la generación de electricidad, el aumento de la utilización eficiente de las capacidades existentes en la flota de la planta de energía, y la expansión de las capacidades de transferencia de energía transfronterizos entre los estados europeos. Una buena cooperación de todos los participantes es esencial en el mercado de la energía, para el desarrollo de una flota de plantas de energía eficiente en Europa y, por último, para el éxito de cada empresa en particular. El método de encuesta utilizada, de diseño propio ha demostrado su eficacia en el presente estudio. La extensión del cálculo de la inversión cuantitativa por un proceso de evaluación y decisión cualitativa refinada y la introducción de un análisis de la utilidad modificado con razón tiene su lugar en este paradigma. Sobre la base del material empírico, se realizó una caracterización detallada de la ponderación de los criterios del sitio. Como resultado de esto se encontró que la decisión del sitio es un proceso multipersonal, en el que el comportamiento de la racionalidad subjetiva o restringida de los jugadores implicados no permite una conclusión definitiva, pero sólo proporciona una conclusión de tendencias, planteando la solución como juicios colectivos en lugar de individuales. Cambios futuros, pueden obligar a optimizar el trabajo.
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Бреженко, Нікіта Сергійович. "Теоретико-ігровий підхід в задачі вибору локації." Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/43898.

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Дипломна робота: 101 с., 16 рис., 9 табл., 2 додатки, 12 джерел Об’єкт дослідження – теоретико-ігровий підхід в задачі вибору локації, математичні специфікації локаійної задачі Предмет дослідження – практичне використання постулатів теорії ігор в економіці, маркетингі, урбаністиці, бізнесі Мета роботи – розробити програмний продукт, який дозволяє ознайомитись із прикладом класичної задачі вибору локації, освоїти теоретико-ігровий підхід до її розв’язання Актуальність – сучасні прикладення теорії ігор в задачі вибору локації Проведено дослідження історії виникнення задачі вибору локації, сучасних практичних прикладень та специфікацій. Шлях подальшого розвитку предмету дослідження – ускладнення задачі, шляхом додавання вагів до вершин, ребер та оптимізація роботи алгоритму для графів з безліччю ребер.
Diploma work: 101 p., 16 fig., 9 tabl., 2 appendixes, 12 sources. The theme – location choice problem in game theory The object of study - game-theoretic approach in the problem of location selection, mathematical specifications of the location problem Subject of research - practical use of the postulates of game theory in economics, marketing, urban planning, business Purpose – to develop a software product that allows to get acquainted with the example of the classical problem of location selection, to master the theoretical- game approach to its solution Actuality - modern applications of game theory in the problem of location selection A study of the history of the problem of location selection, modern practical applications and specifications. The way of further development of the subject of research is to complicate the problem by adding weights to the vertices, edges and optimizing the algorithm for graphs with many edges.
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Espinoza, García Juan Carlos. "Robust optimization for discrete structures and non-linear impact of uncertainty." Thesis, Cergy-Pontoise, Ecole supérieure des sciences économiques et commerciales, 2017. http://www.theses.fr/2017ESEC0004/document.

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L’objectif de cette thèse est de proposer des solutions efficaces à des problèmes de décision qui ont un impact sur la vie des citoyens, et qui reposent sur des données incertaines. Au niveau des applications, nous nous intéressons à deux problèmes de localisation qui ont un impact sur l’espace public, notamment la localisation de nouveaux logements, et la localisation de vendeurs mobiles dans l’espace urbain. Les problèmes de localisation ne sont pas un sujet récent dans la littérature, toutefois, pour ces deux problèmes qui reposent sur des modèles de choix pour le comportement d’achat des consommateurs, l’incertitude dans le modèle génère un cas spécial qui permet d’étendre la littérature sur l’Optimisation Robuste. Les contributions de cette thèse peuvent s’appliquer à divers problèmes génériques d’optimisation
We address decision problems under uncertain information with non-linear structures of parameter variation, and devise solution methods in the spirit of Bertsimas and Sim’s Γ-Robustness approach. Furthermore, although the non-linear impact of uncertainty often introduces discrete structures to the problem, for tractability, we provide the conditions under which the complexity class of the nominal model is preserved for the robust counterpart. We extend the Γ-Robustness approach in three avenues. First, we propose a generic case of non-linear impact of parameter variation, and model it with a piecewise linear approximation of the impact function. We show that the subproblem of determining the worst-case variation can be dualized despite the discrete structure of the piece-wise function. Next, we built a robust model for the location of new housing where the non-linearity is introduced by a choice model, and propose a solution combining Γ-Robustness with a scenario-based approach. We show that the subproblem is tractable and leads to a linear formulation of the robust problem. Finally, we model the demand in a Location Problem through a Poisson Process inducing, when demands are uncertain, non-linear structures of parameter variation. We propose the concept of Nested Uncertainty Budgets to manage uncertainty in a tractable way through a hierarchical structure and, under this framework, obtain a subproblem that includes both continuous and discrete deviation variables
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Κόλλια, Ηλιάνα. "Ιεραρχική ανάλυση αποφάσεων (AHP) : ένα μοντέλο λήψης αποφάσεων σε συνθήκες πολλαπλών κριτηρίων." Thesis, 2012. http://hdl.handle.net/10889/5465.

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Η παρούσα εργασία σκοπεύει στην παρουσίαση και ανάλυση μιας μεθόδου Λήψης Αποφάσεων η οποία διαχειρίζεται αποφάσεις πολυσταδιακές ως προς τα κριτήρια. Πρόκειται για αποφάσεις οι οποίες έχουν συγκεκριμένες εναλλακτικές επιλογές και πολλαπλά κριτήρια. Αποφάσεις σαν αυτές συνδέονται με κάθε επιστημονικό κλάδο αλλά τις συναντάμε και στην καθημερινότητα μας, γεγονός που καθιστά τον αποτελεσματικό χειρισμό τους σημαντικό. Η μέθοδος με την οποία θα ασχοληθούμε ονομάζεται Αναλυτική Ιεραρχική Διαδικασία (Analytic Hierarchy Process – AHP), δημιουργός της είναι ο Thomas L. Saaty και χρονολογείται μέσα στην δεκαετία του 1970. Η AHP βασίζεται στις σχετικές συγκρίσεις ανάμεσα στους παράγοντες που προσδιορίζουν την εκάστοτε απόφαση. Οι συγκρίσεις πραγματοποιούνται με κοινή βάση την θεμελιώδη κλίμακα του Saaty. Στο πρώτο κεφάλαιο όπου παρουσιάζεται το θεωρητικό υπόβαθρο της μεθόδου, θα δούμε ότι με τον τρόπο αυτό η AHP καθιστά τα πάντα μετρήσιμα. Σκοπός είναι μέσω της ιεραρχική δόμησης του προβλήματος να προσδιοριστεί η καλύτερη από τις εναλλακτικές. Η AHP προσεγγίζει με απλότητα την πολυπλοκότητα των αποφάσεων, γεγονός που κάνει την εννοιολογικά απλή προσέγγιση της μεθόδου εξαιρετικά ισχυρή. Στην πορεία της εργασίας θα παρουσιάσουμε το μαθηματικό υπόβαθρο της μεθόδου μέσα από την αξιωματική θεμελίωση όπως δόθηκε από τον Thomas L. Saaty. Τέλος, θα αναλύσουμε προβλήματα επιλογής τοποθεσίας σε διεθνές επίπεδο και θα ολοκληρώσουμε με την υλοποίηση ενός τέτοιου προβλήματος στο Expert Choice.
This paper intends to present and analyze a method of multi-criteria decision making. In these decisions the alternatives have been predetermined and there are multiple criteria affecting them. Decisions like these are linked with many areas of science, but there are in everyone’s daily lives too, fact that makes the effective handling really important. The present study is been dealing with a method called Analytic Hierarchy Process (AHP), invented by Thomas L. Saaty in seventies. The AHP is based on pairwise comparisons among the factors that determine the decision. The Saaty’s fundamental scale of absolute numbers is used in making paired comparison judgments. In the first chapter of the study where the theoretical base of the method is represented, will be seen that AHP with the relative comparisons makes everything measurable. AHP intends through hierarchical structuring of the problem to determine the best of the alternatives. The AHP approach with simplicity to the complexity of decisions makes the method conceptually simple and extremely powerful. Later in this paper will be presented the mathematical background of the method through the axiomatic foundation as given by Thomas L. Saaty. Finally, will be dealt with problems of location selection decisions in international operations and the paper will be completed with the implementation of such a problem in Expert Choice.
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Books on the topic "Location choice problem"

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Dowding, Keith. Rational Choice and Political Power. Policy Press, 2019. http://dx.doi.org/10.1332/policypress/9781529206333.001.0001.

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Rational Choice and Political Power is a classic text republished with two new chapters. It critiques the three dimensions of power showing that we can explain everything the dimensions are designed to highlight using the tools of rational choice theory. It argues power is best seen as a property of agents, and can be measured by looking at their relative resources. Breaking down power resources into five abstract categories we can see why groups of individuals can fail to secure their best interests due to the collective action problem. We can also define objective interests in through the lens of collective action. Despite power being seen as a property of agents rational choice models of power provide structural Explanation. The power and luck structure is the relationship in agential resource-holding given agents preferences. The book explains the difference between power and systematic luck – the latter is where groups, including powerful ones – can get what they want without doing anything simply because of their social location in the power and luck structure. The book engages with some feminist critiques of seeing power in rational choice terms and includes some methodological discussion of the relationship of methodological individualism and structuralism and then that the concept of power is essentially contested. This book’s unique interaction with both classical and contemporary debates makes it an essential resource for anyone teaching or studying power in the disciplines of sociology, philosophy, politics or international relations.
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Franklin, Christopher Evan. The Role and Location of Indeterminism. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190682781.003.0005.

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According to incompatibilists, free will and moral accountability exist only in nondeterministic worlds. But which ones? Where exactly must indeterminism be located, and what role must it play to make room for the possibility of freedom and accountability? This chapter evaluates three possible libertarian answers—non-action-centered accounts, nonbasic action-centered accounts, and basic action-centered accounts—and argues that libertarians should embrace a basic action-centered account that locates indeterminism at the moment of basic action (e.g., choice). Central to this chapter is showing that the source of the major problems with Kane’s event-causal libertarian theory can be traced to his problematic conception of the role and location of indeterminism and that we can avoid these problems by embracing the alternative conception developed in minimal event-causal libertarianism.
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Paul, Torremans. Part V Family Law, 28 Mental Incapacity. Oxford University Press, 2017. http://dx.doi.org/10.1093/law/9780199678983.003.0028.

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This chapter examines mental incapacity as a special issue in private international law. Problems arise in cases where, for example, a mentally incapacitated person may be present in one country but habitually resident in another when measures of protection are needed; or this person may own property situated in a country different from his present location or habitual residence that needs to be dealt with. This chapter considers the jurisdiction of the English courts to order protective measures over a mentally disordered or incapacitated person or over his property, as well as the choice of law rules governing the protection of mentally incapacitated persons, prior to and under the Mental Capacity Act 2005. It also discusses the recognition and enforcement of protective measures taken abroad, along with cases outside the realm of the Mental Capacity Act.
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Boström, Magnus, Michele Micheletti, and Peter Oosterveer, eds. The Oxford Handbook of Political Consumerism. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780190629038.001.0001.

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The global phenomenon of political consumerism is known through such diverse manifestations as corporate boycotts, increased preferences for organic and fair-trade products, and lifestyle choices such as veganism. It has also become an area of increasing research across a variety of disciplines. Political consumerism usesconsumer power to change institutional or market practices that are found ethically, environmentally, or politically objectionable. Through such actions, the goods offered on the consumer market are problematized and politicized. Distinctions between consumers and citizens and between the economy and politics collapse. The Oxford Handbook of Political Consumerism offers the first comprehensive theoretical and comparative overview of the ways in which the market becomes a political arena. It maps the four major forms of political consumerism: boycotting, buycotting (spending to show support), lifestyle politics, and discursive actions, such as culture jamming. Chapters by leading scholars examine political consumerism in different locations and industry sectors, and in consideration of environmental and human rights problems, political events, and the ethics of production and manufacturing practices. This volume offers a thorough exploration of the phenomenon and its myriad dilemmas, involving religion, race, nationalism, gender relations, animals, and our common future. Moreover, the Handbook takes stock of political consumerism's effectiveness in solving complex global problems and its use to both promote and impede democracy.
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Rushing, Sara. The Virtues of Vulnerability. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197516645.001.0001.

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There are many locations, relationships, and experiences through which we learn what it means to be a citizen. Contemporary healthcare—or “the clinic”—is one of those sites. Being drawn into the complex “medical-legal-policy-insurance nexus” as a patient entails all sorts of learning, including, it is argued here, political learning. When we are subjected as a patient, frequently through a discourse of “choice and control,” or “patient autonomy,” what do we learn? What happens when the promise of a certain kind of autonomy is accompanied by demands for a certain kind of humility? What do we learn about agency and self-determination, as well as trust, self-knowledge, dependence, and resistance under such conditions of acute vulnerability? This book explores these questions on a journey through medicalized encounters with giving birth, navigating death and dying, and seeking treatment for life-altering mental illness (here post-traumatic stress disorder among veterans). While the body has always posed a problem for Western thought, and has been treated as an obstacle to freedom and independence and something our rational capacity must master and control, this book aims to counter that intellectual-historical and political tendency by asking how we might reimagine the political potential of embodiment, or make space for considering “the virtues of vulnerability.” In particular, the book offers a novel conception of democratic citizen-subjectivity, grounded in an ethical disposition of humility-informed-relational-autonomy.
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Kelly, Phil. Defending Classical Geopolitics. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228637.013.279.

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Three successive parts are presented within this article, all intended to raise the visibility and show the utility of classical geopolitics as a deserving and separate international-relations model: (a) a common traditional definition, (b) relevant theories that correspond to that definition, and (c) applications of certain theories that will delve at some depth into three case studies (the Ukrainian shatterbelt, contemporary Turkish geopolitics, and a North American heartland).The placement of states, regions, and resources, as affecting international relations and foreign policies, defines classical geopolitics. This definition emphasizes the application of spatially composed unbiased theories that should bring insight into foreign-affairs events and policies. Specifically, a “model” contains theories that correspond to its description. A “theory” is a simple sentence of probability, with “A” happening to likely affect “B.” Importantly, models are passive; they merely hold theories. In contrast, theories possess their own titles and perform actively when taken from such models.Various methodological challenges are presented: (a) combining concepts with theories, (b) estimating probability for testing theories, (c) claiming the “scientific,” (d) accounting for determinism, (e) revealing a dynamic environment for geopolitics, (f) separating realism from geopolitics, and (g) drawing classical geopolitics away from the critical. Certain theories that are placed within the geopolitical model are examined next: (a) heartlands and rimlands, (b) land and sea power, (c) choke points and maritime lines of communication, (d) offshore balancing, (e) the Monroe doctrine, (f) balances of power, (g) checkerboards, (h) shatterbelts, (i) pan-regions, (j) influence spheres, (k) dependency, (l) buffer states, (m) organic borders, (n) imperial thesis, (o) borders/wars, (p) contagion, (q) irredentism, (r) demography, (s) fluvial laws, (t) petro-politics, and (u) catastrophic events in nature. Additional theories apply elsewhere in the article as well.Of the three case studies, the Ukrainian shatterbelt represents the sole contemporary geopolitical configuration of this type, a regional conflict coupling with a strategic rivalry. Here, partisans of the civil war between the eastern and the western sectors of the country have joined with the Russians against the Europeans and Americans, respectively. Next, Turkey’s pivotal location has afforded it both advantages and disadvantages, a topic discussed at some length earlier in the article. Its “zero-problems” strategy of seeking positive relations with neighbors has now been forced to change tactics, reflective of new forces within and beyond the country. Finally, a North American heartland compares nicely to Halford Mackinder’s earlier Eurasia heartland thesis, with the American perhaps proving more stable, wealthy, and enduring, based in large part on its stronger geopolitical features.
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Book chapters on the topic "Location choice problem"

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Veliyev, Ahmed, Tarlan Abdullayev, Ramiz Alekperov, and Vuqar Salahli. "Solution of the Retail Marketing Problem of Rational Choice of the Location of Trade Enterprises Using the Method of Hierarchy Analysis and Fuzzy Set Theory." In Advances in Intelligent Systems and Computing, 71–79. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-64058-3_9.

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Sender, Julia, and Uwe Clausen. "Hub Location Problems with Choice of Different Hub Capacities and Vehicle Types." In Lecture Notes in Computer Science, 535–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21527-8_59.

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Anshelevich, Elliot, and Wennan Zhu. "Ordinal Approximation for Social Choice, Matching, and Facility Location Problems Given Candidate Positions." In Web and Internet Economics, 3–20. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04612-5_1.

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Tigard, Daniel W. "Big Data and the Threat to Moral Responsibility in Healthcare." In Datenreiche Medizin und das Problem der Einwilligung, 11–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62987-1_2.

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AbstractTechnological innovations in healthcare, perhaps now more than ever, are posing decisive opportunities for improvements in diagnostics, treatment, and overall quality of life. The use of artificial intelligence and big data processing, in particular, stands to revolutionize healthcare systems as we once knew them. But what effect do these technologies have on human agency and moral responsibility in healthcare? How can patients, practitioners, and the general public best respond to potential obscurities in responsibility? In this paper, I investigate the social and ethical challenges arising with newfound medical technologies, specifically the ways in which artificially intelligent systems may be threatening moral responsibility in the delivery of healthcare. I argue that if our ability to locate responsibility becomes threatened, we are left with a difficult choice of trade-offs. In short, it might seem that we should exercise extreme caution or even restraint in our use of state-of-the-art systems, but thereby lose out on such benefits as improved quality of care. Alternatively, we could embrace novel healthcare technologies but in doing so we might need to loosen our commitment to locating moral responsibility when patients come to harm; for even if harms are fewer – say, as a result of data-driven diagnostics – it may be unclear who or what is responsible when things go wrong. What is clear, at least, is that the shift toward artificial intelligence and big data calls for significant revisions in expectations on how, if at all, we might locate notions of responsibility in emerging models of healthcare.
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Camargo-Pérez, Johanna, and Jairo R. Montoya-Torres. "Comparison of Multi-Criteria Decision-Making Techniques for the Location of Multi-Modal Terminals in an Integrated Public Urban Transport System." In Advances in Logistics, Operations, and Management Science, 393–407. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8160-4.ch021.

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Multiple actors from both private and public sectors are currently involved in the design and operation of urban passenger transport systems seeking at optimizing their own objectives. Multi-criteria decision-making (MCDM) techniques actually aid this process. In this chapter, the authors consider the problem of locating multimodal terminals of an integrated public passenger transport system (IPPTS). A case study for the city of Bogota, Colombia is evaluated. Majority of works in MCDM does not explicitly justify the choice of the applied technique. This chapter applies three different techniques, AHP (analytic hierarchy technique), ELECTRE II (elimination and choice expressing the reality), and CRITIC (criteria importance through intercriteria correlation), to solve problem. A feature of this study is that traditional economic and logistic criteria are evaluated together with environmental and social criteria not previously evaluated in the literature. Numerical results show that each multi-criteria approach may prefer a different alternative, depending on the intrinsic behavior of each technique.
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Zverovich, Vadim. "Graph Models for Optimization Problems in Road Networks." In Modern Applications of Graph Theory, 275–336. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198856740.003.0005.

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Here two applications of graph theory are considered. The first is devoted to pedestrian safety, and the focus is on pedestrian safety in urban areas with respect to pedestrian-vehicle crashes. In particular, an algorithm for automated construction of a graph model for pavement networks is discussed. Then, an algorithm for finding a user-optimal path in a given pavement network is presented. This algorithm is based on three criteria: path safety, distance, and path complexity. The second part of this chapter is devoted to optimizing the placement of charging stations for electric vehicles in road networks. The placement of charging stations in road networks is modelled as a multiple domination problem on reachability graphs. This model takes into account a threshold for the remaining battery charge and provides some minimal choice for a travel direction to recharge the battery. Experimental evaluation and simulations for the proposed facility location model are given for real road networks of the cities of Boston and Dublin.
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Gomez, Erwin Adán Martinez. "Distribution and Selection of Ornamental Fishes' Issues on a Koi Fish Pond Using Krill Algorithm to an Order Picking Model." In Advances in Human Resources Management and Organizational Development, 275–88. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8131-4.ch015.

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This chapter presents a problem solved by social modeling, associated with the adequate choice of colors to issues and their distribution in a koi fish pond using a range of 64 colors to specify different features related to the principal attributes of an issue adequate to represent the symbolic capital of a society from Memory Alpha. An algorithm of study based on a krill herd is presented regarding the selection of 47 issues using data obtained from the diverse cultural patterns described in this repository, a bio-inspired algorithm, to solve a specific problem adapted from the modeled literature about societies. The set of the study was formed by 1087 societies, which allowed to examine individual characteristics without affecting the visualization in the proposed koi fish pond. Demonstrating that the matching of features such as social, linguistic, and cultural specify the correct selection of colors, this research tries to explain this innovative representation and location of a sample of societies on a koi fish pond.
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"Store Location Analysis: Problems and Progress." In Store Choice, Store Location and Market Analysis (Routledge Revivals), 107–25. Routledge, 2014. http://dx.doi.org/10.4324/9781315736686-13.

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"The Angler in the Environment: Social, Economic, Biological, and Ethical Dimensions." In The Angler in the Environment: Social, Economic, Biological, and Ethical Dimensions, edited by Renae C. Tobin and Stephen G. Sutton. American Fisheries Society, 2011. http://dx.doi.org/10.47886/9781934874240.ch8.

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<i>Abstract</i> .—Recreational-only fishing areas (ROFAs; i.e., areas where commercial fishing is excluded, leaving sole fishing access to recreational fishers) are often implemented to reduce conflict between recreational and commercial fishing sectors and to enhance recreational fishing quality. This study explored recreational and commercial fishers’ perceptions of estuarine ROFAs in north Queensland, Australia, with the aim of understanding whether desired socioeconomic benefits are realized. Recreational and commercial fishers in the study area believed that competition between the sectors was a problem; however, only recreational fishers suggested increased segregation of the sectors via ROFAs as a solution. Recreational fishers were largely unaware of the location of current ROFAs in the study area and therefore did not preferentially use these areas compared to areas open to commercial fishing. Likewise, recreational fishers did not deliberately avoid areas frequented by commercial fishers, and the presence or absence of commercial fishing was not a major factor influencing recreational fishing site choice. Further, while recreational fishers expected to catch more fish in areas where commercial fishing does not occur, they had not noticed an improvement in catches in more recently formed ROFAs. Collectively, these results suggest that the existing ROFAs in the study area are not currently providing the expected benefits for fishers and that adding more ROFAs would be unlikely to reduce conflict between commercial and recreational fishers. The effectiveness of the ROFAs may be improved if recreational fishers are better informed about their location. Further investigation is required to understand why recreational fishers do not choose to use current ROFAS, the cause of conflict between the recreational and commercial sectors, and whether expected catch benefits of ROFAs are being realized.
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Leeson, Paul, and Harald Becher. "Pericardial effusion and cardiac tamponade." In The ESC Textbook of Cardiovascular Imaging, 509–19. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780198703341.003.0037.

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A pericardial effusion is an accumulation of fluid within the pericardial space and can occur in response to a range of conditions including inflammatory, iatrogenic, metabolic, and neoplastic problems. Cardiac tamponade describes the clinical situation in which the collection of fluid has become severe enough to cause haemodynamic compromise and is characterized by hypotension and tachycardia, with an exaggerated respiratory motion of the jugular venous pulse. Tamponade is an acute problem that usually requires immediate intervention with drainage of the effusion by pericardiocentesis. Echocardiography is the modality of choice for initial diagnosis, investigation, and monitoring of pericardial effusions. Echocardiography also identifies changes in cardiac function suggestive of cardiac tamponade, such as collapse of the right atrium and ventricle, as well as exaggerated variation in transvalvular Doppler flow with respiration. Echocardiography can also be used to plan the removal of fluid by pericardiocentesis and be of value during the procedure to confirm location of the pericardiocentesis needle. As an adjunct to echocardiography, cardiac computed tomography and magnetic resonance provide further detailed information on fluid characteristics and localization of effusions, although are usually impractical for acute management of effusions and, in particular, tamponade. However, these additional modalities are particularly suited to investigation of related pathology and can inform on the appearance and thickness of the pericardium, as well as identify pathology within the heart or wider thoracic field of view that may underlie the effusion.
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Conference papers on the topic "Location choice problem"

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Ran, Ma, and Han Xuefeng. "An Improved Optimal Algorithm for a Location Choice Problem." In 2009 International Conference on Networking and Digital Society (ICNDS). IEEE, 2009. http://dx.doi.org/10.1109/icnds.2009.95.

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Wu, Tingying, Feng Chu, Zhen Yang, and Zhili Zhou. "A Lagrangean Relaxation Approach for a Two-Stage Capacitated Facility Location Problem with Choice of Facility Size." In 2015 IEEE International Conference on Systems, Man, and Cybernetics (SMC). IEEE, 2015. http://dx.doi.org/10.1109/smc.2015.134.

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Wu, Tingying, Zhen Yang, Feng Chu, and Zhili Zhou. "A lagrangean relaxation approach for a two-stage capacitated facility location problem with choice of depot size." In 2015 IEEE 12th International Conference on Networking, Sensing and Control (ICNSC). IEEE, 2015. http://dx.doi.org/10.1109/icnsc.2015.7116007.

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Thompson, Thomas J. "Graphical Synthesis of Fourbar Mechanisms by Three-Position, Instant-Center Specification." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-71379.

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In four-bar mechanism synthesis, solutions to both the three-position and four-position synthesis problems are well-known. However, certain practical synthesis problems also require consideration of the instantaneous center of velocity for one of the precision positions. Examples are the double-wishbone front suspension of an automobile (camber in jounce and rebound, along with roll center), and four-bar prosthetic knee (standing stability, flexion length, and sitting cosmetic advantage). Because specifying the location of the instant center constrains the solution by one free choice per dyad, it reduces the number of free choices available in a three-position problem from two to one. Thus, center point and circle point solutions to the three-position, instant center specified synthesis (TPICS) problem are located along point-pair solution curves similar to the Burmester curves in four-position synthesis. The purpose of this paper is to present a direct, graphical method for finding pivot locations in three-position, instant-center synthesis of four-bar mechanisms. The method uses pole triangle theory to determine pivot locations along center point and circle point curves. A summary of a previously-presented computational method is included. As an example, both the graphical and the computational method are used to generate TPICS center-point curves for an automotive front suspension.
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Sheldon, Seth, and Ory Zik. "Water Scarcity: An Energy Problem." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88241.

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Using the connection between water and energy as a case study, we present a model that uses the effects of geospatial and temporal context on embedded energy to approximate resource sustainability for water. First, the basic steps of calculating the energy intensity for a given location are discussed. Intensity is presented in units of energy per volume of water. In the case of supplying fresh water, energy intensity depends upon the quality of the original resource, its location relative to the end use location, and the type of technology in use to move and treat the water. Pumping, and conveyance, purification, distribution, wastewater treatment, and system inefficiencies (e.g. evaporative losses, leaks) increase the total energy investment, while water recycling decreases the total investment. Lift and purification are typically the greatest contributors to the overall energy intensity of a fresh water supply, but system inefficiencies can have a substantial impact as well. Over time, growing cities tend to progress from using their least energy intensive water resources (e.g. untreated surface water) to their most energy intensive (e.g. long distance transfers, desalinated water lifted to high elevations) as water demands begin to outstrip supplies. As a function of water availability, we assign each location an intensity value that approaches the intensity of its next “best” (i.e., least energy intensive) source of water. Hence, an area which is depleting its available surface and groundwater may have desalinated surface or groundwater as its next (and last) resort. The area would be characterized as undergoing water stress, and relatively less sustainable than areas which use their local fresh water supplies with no perceivable negative impact. An operating principle of this research is that with enough energy, it is possible to supply any location with fresh water. Desalinated ocean water, moved over long distances and lifted to great heights represents that upper limit. Working backwards from this extreme scenario, it is possible to not only move away from the paradigm of unitless or vague sustainability indices, but to quantify resource scarcity in a way that is both intuitive and actionable. The model is also self-correcting: areas may reduce the energy intensity of a sustainable water supply through better management of existing fresh water resources or through technological innovations that produce fresh water from degraded sources in an energy efficient manner. A major conclusion of this research is that the amount of energy necessary to maintain a reliable supply of fresh water greatly varies by location and technology choice. Further, many areas of the country overuse their local fresh water sources. To create a durable water supply, such areas can 1) reduce their use of local fresh water to sustainable levels and invest in alternative water sources—at a high financial and energy cost, or 2) aggressively pursue water efficiency measures so that they can both reduce their reliance on local fresh water sources and avoid the high costs associated with alternative water supplies. Additionally, by converting water use to energy consumption as a function of scarcity, it is possible to weigh the relative importance of water use efficiency to conservation in other areas (e.g. electricity, direct heating, waste disposal).
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Blešić, Ivana, Tatjana Pivac, and Maja Lena Lopatny. "USING ANALYTIC HIERARCHY PROCESS (AHP) FOR TOURIST DESTINATION CHOICE: A CASE STUDY OF CROATIA." In Tourism in Southern and Eastern Europe 2021: ToSEE – Smart, Experience, Excellence & ToFEEL – Feelings, Excitement, Education, Leisure. University of Rijeka, Faculty of Tourism and Hospitality Management, 2021. http://dx.doi.org/10.20867/tosee.06.7.

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Purpose – Understanding how and why people travel, decide and select a specific place, and what they expect from their destination to meet their actual needs is also a highly important topic. The goal of this article is to investigate the elements that influence Serbian visitors' decision to visit Croatia (Cratian coastline) as a destination. The most important characteristics, components, and types of tourism destinations are analysed. The definition of consumer behavior is explained, as well as the idiosyncrasies of the decision-making process. The most important internal and environmental elements that influence tourist decision-making are summarized. An examination of the cultural, societal, and personal psychological aspects that influence decision-making of Serbian tourists to travel to Croatian cost with different attributes like see, cultural and natural attractions, image, price, human resources is done. Methodology – As a result, the decision-making process is extremely difficult, particularly when determining which factors are more significant than others. The Analytical Hierarchical Process (AHP) method, which has a strong mathematical foundation, could be used to find a good solution to this problem. The Analytical-hierarchy process (AHP) is a systematic way to solving complicated problems that leverages hierarchical structures by generating priorities for various options decided by decision makers. AHP can aid tourism decision-making by examining a large number of decision factors (e.g., factors influencing destination choice, motives for visiting a place, hotel site selection, tourist indicators) and measuring the relevance of each component impacting the decision. The questionnaire used for this manuscript was taken from the paper Blešić et al. (2018). The questionnaire consist of five factors that include 22 items. Findings – Destination amenities, tourism infrastructure, cultural attractions, human resources, price, environmental features are the importnant attributes for choosing Croatian coast as tourism destination. Contribution – this study makes a valuable contribution by highlighting tourists’ motives for visiting coastline destinations in Croatia. Finally, understanding the motivations and preferences of tourists is critical to realizing the full potential of tourism. Consumer behavior research is crucial for tourism sector stakeholders because it can provide important insights into who the tourist is and how stakeholders (travel agencies, hotels, restaurants, food producers, cultural organizations, and so on) can target and develop markets successfully. This research will help researchers better understand what inspires Serbian tourists to visit a Croatian coastal location. The findings will indicate the most common travel motivations that lead Serbian travelers to choose Croatia as their vacation location.
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Natalini, Gianni, and Enrico Sciubba. "Choice of the Pseudo-Optimal Configuration of a Cooled Gas-Turbine Blade Based on a Constrained Minimization of the Global Entropy Production Rate." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-509.

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The problem of determining the optimal configuration of a cooled gas-turbine blade is approached by an entropy minimization technique proposed in previous works by the same authors. The present paper describes the application of the same line of thought to a more complex (and realistic) pseudo-optimization procedure, in which the objective function is again the global entropy generation rate, but two integral constraints are added to the original formulation: the maximum blade temperature (weak constraint) and the overall enthalpy drop of the working fluid in the blade passage (strong constraint). The discontinuous optimization procedure is presented here in an application which resembles a trial-and-error technique, but can be rigorously and formally described and implemented [12]. As a “zero configuration”, a realistic 2-D geometry is considered, and the thermo-fluiddynamic field around it is computed via a standard finite-element code. Then, the entropy generation rates in the blade/fluid system are calculated, and the value of the overall enthalpy drop of the gas as well as the value and location of the maximum blade temperature are recorded. Keeping all other parameters fixed (in particular, maintaining the same cooling air flowrate), the geometry of the blade is slightly “perturbed”, by introducing arbitrary modifications in the blade profile, the number and location of cooling holes, etc. Again, the velocity and temperature fields are computed, and inlet conditions are tuned so that the overall enthalpy drop remains approximately constant and the blade maximum temperature does not exceed a certain assigned value. An “optimal” configuration is found, which is affected by the minimal entropy generation rate, while abiding to the imposed constraints. The procedure is demonstrated on a realistic blade profile, and is shown to produce a better performing cascade, at least in this 2-D simulation. The extension to 3-D problems is — in principle — straightforward (but see Section 3 for further comments).
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Funke, Lawrence, and James P. Schmiedeler. "Simultaneous Topological and Dimensional Synthesis of Planar Morphing Mechanisms." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59618.

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This paper presents a general method to perform simultaneous topological and dimensional synthesis for planar rigid-body morphing mechanisms. The synthesis is framed as a multi-objective optimization problem for which the first objective is to minimize the error in matching the desired shapes. The second objective is typically to minimize the actuating force/moment required to move the mechanism, but different applications may require a different choice. The paper shows how all possible topologies can be enumerated for morphing mechanism designs with a specified number of degrees of freedom and how infeasible topologies can be removed from the search space. A multi-objective genetic algorithm is then used to perform the optimization since it can handle both the discrete nature of the topological optimization and the continuous nature of the dimensional optimization. In this way, candidate solutions from any of the feasible topologies enumerated can be evaluated and compared simultaneously. The method also allows for the straightforward incorporation of specific design constraints, such as size limitations and joint location bounds. Ultimately, it yields a sizable population of viable solutions, often of different topologies, so that the designer can manage engineering tradeoffs (beyond those associated with the two objectives) in selecting the best mechanism for the specified application. Two examples are presented to illustrate the strengths of this method. The first examines the advantages gained by considering and optimizing across all topologies simultaneously instead of individual topologies one at a time. The second demonstrates the versatility of the method by incorporating prismatic joints into the morphing chain to allow for morphing between shapes that have significant changes in both shape and arc length.
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Thompson, Thomas J. "Specification of Prosthetic Knee Kinematic Design Parameters Using a Three-Position, Instant-Center Specification Approach." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38645.

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The large number of above-knee amputations world-wide creates a need for prosthetic knees with kinematic characteristics fit to individual users. Prosthetists use a number of parameters to fit an individual: leg length in zero and 65 degree flexion, cosmetic advantage in 90 degree flexion, and location of the coupler instant center of rotation both above the knee joint and behind its axis in the first position. Designers use four-bar and similar mechanisms to provide acceptable motion. The first three design requirements point to three-position motion synthesis, a well-studied kinematic synthesis approach for which a four-bar designer exercises two free choices. However, specification of the instant center location adds constraints which may force the designer to iterate or compromise in order to satisfy space and other constraints. The three-position, instant-center specification problem is generally applicable to a number of other situations. It is shown that the addition of the instant center requirement reduces the number of free choices available to the designer to only one, so that pivot locations may be located along a locus similar to a Burmester curve. Results of work to produce such curves graphically and computationally is presented.
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Hovhannisyan, Petros. "Development of Advanced System for Early Detection of Primary Coolant Circuit Piping Leaks." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75810.

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The critical analysis of existing diagnostics systems of primary circuit piping leaks has revealed, that it’s possible to develop a system allowing to essentially (up to several thousand times more) increase sensitivity of a leak detection. In addition, the location of a leak could be defined, too. The principle for an early leak identification system of the primary circuit piping, of approximately 0,001kg/hr sensitivity and leak detection time no more than one minute is presented. Such sensitivity is far above (several thousands times more), than the level required by LBB concept and that must result in increase of time for response planning and thus to increasing the reliability of selected decision. It will allow revealing a leak at a very early stage of a crack development, thus, increasing not only the safety of NPP equipment operation, but also reducing occupational exposure of the maintenance personnel and additional release into the atmosphere up to a reasonable minimum. Estimating of release reduction into the atmosphere makes up 2.4·107÷4.8·108 Bq/d and estimating of occupational exposure of the maintenance personnel makes up 3÷5 man·mSv per one operation for a crack elimination. Efficiency of application of such system is determined not only by the supposed high sensitivity but also by a correct choice of the pipeline sections for leak monitoring procedure. Therefore, identification of pipeline sections with the greatest probability of leak in operation is an important component of the problem solution. Optimization of the location and number of the inspected pipeline sections may be carried out by identification of the most dangerous pipeline sections in the view of through-crack formation, for that it is purposed: • Calculations of mechanical loadings on the main circulating pipeline and surge lines may be performed within the framework of linear elasticity theory; • Conformity of these calculations with the real situation may be checked by measurements of deformations and displacements of the pipeline elements during normal operation of the nuclear power plant and during reactor transients as well. So, in addition to the system for early detection of the location and the value of leak, you may get the system for on-line remote monitoring of value of deformations and displacements of the primary system pipe elements. As is well known, the value of leak depends on roughness of through-crack. That may lead to miscalculation of through-crack size, which is calculated using the value of leak. Thus if we have enough of sensitivity margin we will be able to guarantee the necessary safety margin without dependence on roughness of through-crack because by detecting the leak much less critical size we will be able to observe the temporal progress of leak value and to confidently control the progress of the crack size. Development of a system of detecting primary piping leaks, which much less critical ones, and identification of their location will allow NPP operators to supervise the crack propagation and to make the best decision. The estimates for topology and technical features of system will be represented in the report; The system will be able to satisfy the requirements for “near-ideal” system of early detection of primary circuit piping leaks. The software of a signal processing from such device at present does not constitute a difficulty and a signal processing may be performed under set-point accuracy and quick response. So, an operator makes a decision, which depends on measured size of leak, which is considered related to certain crack opening and the size of the latter dictate to operator what kind of decision he must accept.
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