Bibliografie tematiche / Routing with profits

Letteratura scientifica selezionata sul tema "Routing with profits"

Autore: Grafiati

Pubblicato: 6 luglio 2024

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Articoli di riviste sul tema "Routing with profits":

Li, Jian, e Wenhua Lu. "Full truckload vehicle routing problem with profits". Journal of Traffic and Transportation Engineering (English Edition) 1, n. 2 (aprile 2014): 146–52. http://dx.doi.org/10.1016/s2095-7564(15)30099-4.

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Li, Jianping, Kang Li, Lusheng Wang e Hao Zhao. "Maximizing Profits of Routing in WDM Networks". Journal of Combinatorial Optimization 10, n. 2 (settembre 2005): 99–111. http://dx.doi.org/10.1007/s10878-005-2263-0.

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Archetti, C., N. Bianchessi e M. G. Speranza. "Optimal solutions for routing problems with profits". Discrete Applied Mathematics 161, n. 4-5 (marzo 2013): 547–57. http://dx.doi.org/10.1016/j.dam.2011.12.021.

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Archetti, Claudia, Luca Bertazzi, Demetrio Laganà e Francesca Vocaturo. "The Undirected Capacitated General Routing Problem with Profits". European Journal of Operational Research 257, n. 3 (marzo 2017): 822–33. http://dx.doi.org/10.1016/j.ejor.2016.08.001.

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Archetti, Claudia, Dominique Feillet, Alain Hertz e M. Grazia Speranza. "The undirected capacitated arc routing problem with profits". Computers & Operations Research 37, n. 11 (novembre 2010): 1860–69. http://dx.doi.org/10.1016/j.cor.2009.05.005.

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Stavropoulou, F., P. P. Repoussis e C. D. Tarantilis. "The Vehicle Routing Problem with Profits and consistency constraints". European Journal of Operational Research 274, n. 1 (aprile 2019): 340–56. http://dx.doi.org/10.1016/j.ejor.2018.09.046.

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Lee, Dongoo, e Jaemyung Ahn. "Vehicle routing problem with vector profits with max-min criterion". Engineering Optimization 51, n. 2 (24 aprile 2018): 352–67. http://dx.doi.org/10.1080/0305215x.2018.1458845.

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Zachariadis, E. E., e C. T. Kiranoudis. "Local search for the undirected capacitated arc routing problem with profits". European Journal of Operational Research 210, n. 2 (aprile 2011): 358–67. http://dx.doi.org/10.1016/j.ejor.2010.09.039.

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Archetti, Claudia, Nicola Bianchessi, M. Grazia Speranza e Alain Hertz. "Incomplete service and split deliveries in a routing problem with profits". Networks 63, n. 2 (3 ottobre 2013): 135–45. http://dx.doi.org/10.1002/net.21529.

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Poltavskaya, Yuliya. "ROUTING CARGO TRAFFIC IN MULTIMODAL TRANSPORT NETWORKS". Modern Technologies and Scientific and Technological Progress 2022, n. 1 (16 maggio 2022): 195–96. http://dx.doi.org/10.36629/2686-9896-2022-1-195-196.

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Abstract (sommario):

Multimodal transportation is widely used for trade between different regions and countries. The cost of international logistics is approximately 30-50% of all production costs of enterprises. Reducing transport costs allows you to increase profits and maintain the competitiveness of transport companies in the global market. Thus, optimization of routes in a multimodal transport network is an actual direction for research. An analytical review of the problem of planning routes for multimodal freight transportation is presented from the point of view of formulating a model

Più fonti

Tesi sul tema "Routing with profits":

El-Hajj, Racha. "Vehicle routing problems with profits, exact and heuristic approaches". Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2192.

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Nous nous intéressons dans cette thèse à la résolution du problème de tournées sélectives (Team Orienteering Problem - TOP) et ses variantes. Ce problème est une extension du problème de tournées de véhicules en imposan tcertaines limitations de ressources. Nous proposons un algorithme de résolution exacte basé sur la programmation linéaire en nombres entiers (PLNE) en ajoutant plusieurs inégalités valides capables d’accélérer la résolution. D’autre part, en considérant des périodes de travail strictes pour chaque véhicule durant sa tournée, nous traitons une des variantes du TOP qui est le problème de tournées sélectives multipériodique (multiperiod TOP - mTOP) pour lequel nous développons une métaheuristique basée sur l’optimisation par essaim pour le résoudre. Un découpage optimal est proposé pour extraire la solution optimale de chaque particule en considérant les tournées saturées et pseudo saturées .Finalement, afin de prendre en considération la disponibilité des clients, une fenêtre de temps est associée à chacun d’entre eux, durant laquelle ils doivent être servis. La variante qui en résulte est le problème de tournées sélectives avec fenêtres de temps (TOP with Time Windows - TOPTW). Deux algorithmes exacts sont proposés pour résoudre ce problème. Le premier est basé sur la génération de colonnes et le deuxième sur la PLNE à laquelle nous ajoutons plusieurs coupes spécifiques à ce problème
We focus in this thesis on developing new algorithms to solve the Team Orienteering Problem (TOP) and two of its variants. This problem derives from the well-known vehicle routing problem by imposing some resource limitations .We propose an exact method based on Mixed Integer Linear Programming (MILP) to solve this problem by adding valid inequalities to speed up its solution process. Then, by considering strict working periods for each vehicle during its route, we treat one of the variants of TOP, which is the multi-period TOP (mTOP) for which we develop a metaheuristic based on the particle swarm optimization approach to solve it. An optimal split procedure is proposed to extract the optimal solution from each particle by considering saturated and pseudo-saturated routes. Finally, in order to take into consideration the availability of customers, a time window is associated with each of them, during which they must be served. The resulting variant is the TOP with Time Windows (TOPTW). Two exact algorithms are proposed to solve this problem. The first algorithm is based on column generation approach and the second one on the MILP to which we add additional cuts specific for this problem. The comparison between our exact and heuristic methods with the existing one in the literature shows the effectiveness of our approaches

Ahn, Jaemyung. "The Generalized Location Routing Problem with Profits for planetary surface exploration and terrestrial applications". Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43077.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2008.
Includes bibliographical references (p. 143-149).
As the scale of space exploration gets larger, planning of planetary surface exploration becomes more complex and campaign-level optimization becomes necessary. This is a challenging profit maximization problem whose decisions encompass selection of bases, technological options, routes, and excursion methods under constraints on a route, a mission, and a whole campaign. The Generalized Location Routing Problem with Profits (GLRPP) is developed in this thesis as a framework to solve this campaign optimization problem. A mathematical formulation for the GLRPP is developed and two solution methods to solve the GLRPP - a single phase method and a three-phase method - are presented. Numerical experiments for these two solution methods are carried out and their performance in terms of efficiency and effectiveness are analyzed. Two case studies are carried out. The first case study is a global Mars surface exploration campaign optimization. Problem instances for 100 potential bases and 1000 potential exploration sites are successfully solved using a three-phase solution method. A methodology to express the incremental value of a technology using exploration profits is demonstrated to evaluate an orbiting depot and in-situ resource utilization (ISRU). The second case study is a college football recruiting problem. A GLRPP instance is created out of the NCAA football division I-A schools and airports from which the schools can be reached. The problem is successfully solved using the three-phase solution method within a very small optimality gap.
by Jaemyung Ahn.
Ph.D.

Polat, Esra. "A Location And Routing-with-profit Problem In Glass Recycling". Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12610221/index.pdf.

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In this study, our aim is to determine the locations of bottle banks used in collecting recycled glass. The collection of recycled glass is done by a fleet of vehicles that visit some predetermined collection points, like restaurants and hospitals. The location of bottle banks depends on the closeness of the banks to the population zones where the recycled class is generated, and to the closeness of the banks to the predetermined collection points. A mathematical model, which combines the maximal covering problem in the presence of partial coverage and vehicle routing problem with profits, is presented. Heuristic procedures are proposed for the solution of the problem. Computational results based on generated test problems are provided. We also discuss a case study, where bottle banks are located in Yenimahalle, a district of Ankara

Tran, Trong Hieu. "Méthodes d'optimisation hybrides pour des problèmes de routages avec profits". Electronic Thesis or Diss., Toulouse 3, 2023. http://www.theses.fr/2023TOU30367.

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L'optimisation combinatoire est une branche de l'optimisation mathématique qui se concentre sur la recherche de solutions optimales parmi un ensemble fini de combinaisons possibles, tout en respectant un ensemble de contraintes et en maximisant ou minimisant une fonction objectif. Pour résoudre ces problèmes, les méthodes incomplètes sont souvent utilisées en pratique, car ces dernières peuvent produire rapidement des solutions de haute qualité, ce qui est un point critique dans de nombreuses applications. Dans cette thèse, nous nous intéressons au développement d'approches hybrides qui permettent d'améliorer la recherche incomplète en exploitant les méthodes complètes. Pour traiter en cas pratique, nous considérons ici le problème de tournées de véhicules avec profits, dont l'objectif est de sélectionner un sous-ensemble de clients à visiter par des véhicules de manière à maximiser la somme des profits associés aux clients visités. Plus précisément, nous visons tout d'abord à améliorer les algorithmes de recherche incomplets en exploitant les connaissances acquises dans le passé. L'idée centrale est de: (i) apprendre des conflits (combinaisons de décisions qui conduisent à une violation de certaines contraintes ou à une sous-optimalité des solutions) et les utiliser pour éviter de réexaminer les mêmes solutions et guider la recherche, et (ii) exploiter les bonnes caractéristiques de solutions élites afin de produire de nouvelles solutions ayant une meilleure qualité. En outre, nous étudions le développement d'un solveur générique pour des problèmes de routage complexes pouvant impliquer des clients optionnels, des véhicules multiples, des fenêtres temporelles multiples, des contraintes supplémentaires, et/ou des temps de transition dépendant du temps. Le solveur générique proposé exploite des sous-problèmes pour lesquels des méthodes de raisonnement dédiées sont disponibles. L'efficacité des approches proposées est évaluée par diverses expérimentations sur des instances classiques et sur des données réelles liées à un problème d'ordonnancement pour des satellites d'observation de la Terre, qui inclut éventuellement des profits incertains
Combinatorial optimization is an essential branch of computer science and mathematical optimization that deals with problems involving a discrete and finite set of decision variables. In such problems, the main objective is to find an assignment that satisfies a set of specific constraints and optimizes a given objective function. One of the main challenges is that these problems can be hard to solve in practice. In many cases, incomplete methods are preferred to complete methods since the latter may have difficulties in solving large-scale problems within a limited amount of time. On the other hand, incomplete methods can quickly produce high-quality solutions, which is a critical point in numerous applications. In this thesis, we investigate hybrid approaches that enhance incomplete search by exploiting complete search techniques. For this, we deal with a concrete case study, which is the vehicle routing problem with profits. In particular, we aim to boost incomplete search algorithms by extracting some knowledge during the search process and reasoning with the knowledge acquired in the past. The core idea is two-fold: (i) to learn conflicting solutions (that violate some constraints or that are suboptimal) and exploit them to avoid reconsidering the same solutions and guide search, and (ii) to exploit good features of elite solutions in order to hopefully generate new solutions having a higher quality. Furthermore, we investigate the development of a generic framework by decomposing and exchanging information between sub-modules to efficiently solve complex routing problems possibly involving optional customers, multiple vehicles, multiple time windows, multiple side constraints, and/or time-dependent transition times. The effectiveness of the approaches proposed is shown by various experiments on both standard benchmarks (e.g., the Orienteering Problem and its variants) and real-life datasets from the aerospace domain (e.g., the Earth Observation Satellite scheduling problem), and possibly involving uncertain profits

Vicente, Tiago da Luz. "Otimização das rotas para operadores de coleta da EMEL". Master's thesis, Instituto Superior de Economia e Gestão, 2016. http://hdl.handle.net/10400.5/13694.

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Mestrado em Decisão Económica e Empresarial
Através da parceria entre o ISEG e a EMEL - Empresa Municipal de Mobilidade e Estacionamento de Lisboa, foi realizado um estágio profissional, tendo como objetivo otimizar as rotas dos operadores de coleta da EMEL. Foi assim definido o objetivo de identificar, de forma automática, rotas que permitam coletar mais dinheiro no fim de cada turno, reduzindo e homogeneizando os montantes de dinheiro que ficam na rua e, por consequência, o risco de roubo. O problema enquadrado no Vehicle Routing Problem with Profits, identifica rotas que, partindo e regressando de/a um ponto fixo (a base), visitam um certo conjunto de nodos (parquímetros), compatíveis com a capacidade do veículo e com a duração dos turnos dos operadores de coleta. Não se exige que todos os nodos sejam visitados diariamente, sendo apenas visitados os que garantem maior retorno. Foi construída uma função para estimar o valor depositado em cada parquímetro, por hora, sendo assim possível estimar o seu valor no momento da coleta. De seguida, desenvolveu-se e programou-se (em VBA) uma heurística construtiva para a geração de rotas.
Through the partnership between ISEG and EMEL - Empresa Municipal de Mobilidade e Estacionamento de Lisboa, the traineeship has been proposed aiming to optimize the routes made by the EMEL's coin collection operators. The scope is to automatically identify routes that allow the coin collection of more parking meters at the end of each working shift, reducing the amount of money left on the street. The problem was interpreted as a Vehicle Routing Problem with Profits. The routes start and end at a fixed point (the base), and the vehicles must visit a certain set of nodes (metered), within the crew time limit. In this problem there is no need to visit every node daily but to visit those that guarantee a higher return, provided that both the vehicles' capacity and the time limits are satisfied. A valuation function was built to estimate the value deposited in each parking meter per hour. Then, a constructive heuristic was developed and programmed (VBA) to generate routes.
info:eu-repo/semantics/publishedVersion

Melconian, Terran (Terran Kirk) 1979. "Effects of increased nonstop routing on airline cost and profit". Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/16831.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2001.
Includes bibliographical references (p. 77-78).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
by Terran Melconian.
S.M.

Hemmelmayr, Vera, Karen Smilowitz e la Torre Luis de. "A Periodic Location Routing Problem for Collaborative Recycling". Taylor & Francis, 2017. http://dx.doi.org/10.1080/24725854.2016.1267882.

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Motivated by collaborative recycling efforts for non-profit agencies, we study a variant of the periodic location routing problem, in which one decides the set of open depots from the customer set, the capacity of open depots, and the visit frequency to nodes, in an effort to design networks for collaborative pickup activities. We formulate this problem, highlighting the challenges introduced by these decisions. We examine the relative dfficulty introduced with each decision through exact solutions and a heuristic approach which can incorporate extensions of model constraints and solve larger instances. The work is motivated by a project with a network of hunger relief agencies (e.g., food pantries, soup kitchens and shelters) focusing on collaborative approaches to address their cardboard recycling challenges collectively. We present a case study based on data from the network. In this novel setting, we evaluate collaboration in terms of participation levels and cost impact. These insights can be generalized to other networks of organizations that may consider pooling resources.

HOMSI, GABRIEL ANDRE. "SHIP ROUTING AND SPEED OPTIMIZATION WITH HETEROGENEOUS FUEL CONSUMPTION PROFILES". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2018. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=34172@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
PROGRAMA DE EXCELENCIA ACADEMICA
A indústria de transporte marítimo é essencial para o comércio internacional. No entanto, no despertar da crise financeira de 2008, essa indústria foi severamente atingida. Nessas ocasiões, empresas de transporte só são capazes de obter lucro se suas frotas forem roteadas de forma eficaz. Neste trabalho, nós estudamos uma classe de problemas de roteamento de navios relacionados ao Pickup and Delivery Problem with Time Windows. Para resolver esses problemas, nós introduzimos um método heurístico e um exato. O método heurístico é uma meta-heurística híbrida com uma vizinhança larga baseada em set partitioning, enquanto o método exato é um algoritmo de branch-and-price. Nós conduzimos experimentos em um conjunto de instâncias baseadas em rotas de navios reais. Os resultados obtidos mostram que nossos algoritmos superam as metodologias estado da arte. Em seguida, nós adaptamos o conjunto de instâncias para modelar um problema de roteamento de navios no qual a velocidade em cada segmento de rota é uma variável de decisão, e o consumo de combustível por unidade de tempo é uma função convexa da velocidade e carga do navio. A fim de resolver esse novo problema de roteamento de navios com otimização de velocidade, nós estendemos nossa meta-heurística para encontrar decisões de velocidade ótimas em toda avaliação de solução vizinha de uma busca local. Nossos experimentos demonstram que essa abordagem pode ser altamente rentável, e que requer apenas um aumento moderado de recursos computacionais.
The shipping industry is essential for international trade. However, in the wake of the 2008 financial crisis, this industry was severely hit. In these times, transportation companies can only obtain profit if their fleet is routed effectively. In this work, we study a class of ship routing problems related to the Pickup and Delivery Problem with Time Windows. To solve these problems, we introduce a heuristic and an exact method. The heuristic method is a hybrid metaheuristic with a set-partitioning-based large neighborhood, while the exact method is a branch-and-price algorithm. We conduct experiments on a benchmark suite based on real-life shipping segments. The results obtained show that our algorithms largely outperform the state-of-the-art methodologies. Next, we adapt the benchmark suite to model a ship routing problem where the speed on each sailing leg is a decision variable, and fuel consumption per time unit is a convex function of the ship speed and payload. To solve this new ship routing problem with speed optimization, we extend our metaheuristic to find optimal speed decisions on every local search move evaluation. Our computational experiments demonstrate that such approach can be highly profitable, with only a moderate increase in computational effort.

Kashyap, Abhishek. "Profile based topology control and routing in wireless optical networks". College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1440.

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Thesis (M.S.) -- University of Maryland, College Park, 2004.
Thesis research directed by: Dept. of Electrical and Computer Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

Schreier, Hannah Milena Caroline. "Longitudinal relationships between family routines and biological profiles in youth with asthma". Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/1409.

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While numerous studies have linked family routines to pediatric asthma outcomes, it remains unclear how family routines come to be associated with these outcomes on a biological level. The current study investigated whether longitudinal trajectories of inflammatory markers of asthma could be predicted by levels of family routines in youth with asthma. Family routines were assessed at baseline through parent questionnaires and peripheral blood samples obtained from youth every 6 months (total number of assessments = 4) over the course of an 18 month study period. Youth with more family routines in their home environment showed decreases in mitogen-stimulated production of a cytokine implicated in asthma, IL-13, over the course of the study period. In turn, within-person analyses indicated that at times when stimulated production of IL-13 was high, asthma symptoms were also high, pointing to the clinical relevance of changes in IL-13 over time. A variety of potential explanations for this effect were probed. Parental depression, stress, and general family functioning could not explain these effects, suggesting that family routines are not just a proxy for parent psychological traits or family relationship quality. However, medication use eliminated the relationship between family routines and stimulated production of IL-13. This suggests that family routines do impact asthma outcomes at the biological level, possibly through influencing medication adherence. Considering daily family behaviors when treating asthma may help improve both biological and clinical profiles in youth with asthma.

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Libri sul tema "Routing with profits":

Sotamaa, Olli, e Jan Svelch, a cura di. Game Production Studies. NL Amsterdam: Amsterdam University Press, 2021. http://dx.doi.org/10.5117/9789463725439.

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Video games have entered the cultural mainstream and now rival established forms of entertainment such as film or television in terms of economic profits. As careers in video game development become more common, so do the stories about precarious working conditions and structural inequalities within the industry. In Game Production Studies, an international group of researchers takes a closer look at the everyday realities of video game production, ranging from commercial studios to independent creators. Across sixteen chapters, the authors deal with issues related to labour, production routines, or monetization, as well as local specificities. As the first edited collection dedicated solely to video game production, this volume provides a timely resource for anyone interested in how games are made and at what cost.

Vansteenwegen, Pieter, e Aldy Gunawan. Orienteering Problems: Models and Algorithms for Vehicle Routing Problems with Profits. Springer International Publishing AG, 2020.

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Vansteenwegen, Pieter, e Aldy Gunawan. Orienteering Problems: Models and Algorithms for Vehicle Routing Problems with Profits. Springer, 2019.

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Cavanna, Andrea E. Vigabatrin. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198791577.003.0015.

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Vigabatrin is a second-generation antiepileptic drug characterized by a few antiepileptic indications, with a very good interaction profile in polytherapy. Clinically relevant adverse effects (especially visual field defects) have reduced its use as antiepileptic drug in routine clinical practice considerably. Vigabatrin has an acceptable behavioural tolerability profile, although patients with epilepsy treated with this medication can report depression, psychosis, and irritability. Risk factors for developing psychiatric adverse effects include high starting and maintenance doses, past psychiatric history, and epilepsy severity. Vigabatrin has no approved indications or clinical uses in psychiatry, despite weak evidence for its usefulness in the treatment of anxiety disorders and addictions.

L, Anderson William. Swing Trading: A Beginner's Guide with Proven Strategies on How to Trade with Options, Stocks, Futures and Make Profits Fast. Tools, Time and Money Management, Rules and Routine of a Trader. Independently Published, 2019.

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Mainwaring, Lynda. Psychological Factors and Sport-Related Concussion. A cura di Ruben Echemendia e Grant L. Iverson. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199896585.013.15.

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Psychological factors related to sport concussion have been overshadowed by interests in neurocognitive recovery. This chapter begins by examining psychological factors relevant to research and management of sport concussion in the context of a culture where normalizing pain and injury is routine. Among the key components of this chapter is a discussion of emotional disturbance following concussion characterized as the “concussion crevice,” which is represented by high fatigue, low vigor, elevated depression and confusion scores, and high overall emotional distress. This differs from pre-injury “iceberg” profiles of high energy, and low depression, fatigue, and confusion, which is characteristic of mentally healthy athletes. Acute emotional response to concussion is distinguished from response to musculoskeletal injury, mirrors neurocognitive recovery, and appears to correspond with the dynamic neurometabolic restoration pattern described in the literature. Directions for future research are recommended.

Jalan, Rajiv, e Banwari Agarwal. Extracorporeal liver support devices in the ICU. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0198.

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Liver failure is common and carries high morbidity and mortality. Liver transplantation (LT) is the only definitive treatment available performed as an emergency in acute liver failure and electively for chronic liver disease. In the last 50 years, a number of extracorporeal liver support devices and modifications have emerged , some of them purely mechanical in nature aimed at detoxification, while others are cell based systems possessing bio-transformational capability. Mechanical devices are mainly based on albumin dialysis, albumin being a key transporter protein that is severely deficient and irreversibly destroyed in liver diseases. Despite a sound scientific rationale and good safety profile, none of the currently available devices have shown enough promise to be incorporated in routine clinical practice, their use being limited to specific clinical situations. This chapter describes currently available devices, their operational characteristics, current evidence of their utility and limitation, and the future developments in the field of extracorporeal liver support.

Rich, Andrew. Swing Trading: Strategies and Guide for Beginners. Different Options for Risk Management and Analysis. Easy Rules and Routines Used When Investing in Stocks or Forex Which Lead to Dividend Profits. Independently Published, 2019.

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Swing, Matthew J. Swing Trading: A Comprehensive Guide for Beginners on How to Make High Profits with Little Time Available. Learn Base Rules, Routines and the Pros&Cons about Trading on Stocks, Options, Forex and ETF. Independently Published, 2019.

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Kontos, Louis, e David C. Brotherton, a cura di. Encyclopedia of Gangs. Greenwood Publishing Group, Inc., 2007. http://dx.doi.org/10.5040/9798400655593.

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In light of Los Angeles' gang state of emergency, ethnic and minority gangs are arguably more high profile now than at any other time in our history. News media typically focus on the crime and violence associated with gangs, but not much else. This encyclopedia seeks to illuminate the world of gangs, including gang formations, routine gang activities, aberrations and current developments. One hundred essay entries related to gangs in the United States and worldwide provide a diffuse overview of the gang phenomenon. Each entry defines and explains the term, provides an historical overview, and explains its significance today. As the following entries demonstrate, gangs are part of the fabric of American society. They are not only in our communities but also our schools and other social institutions. Understanding the world of gangs is therefore needed to understand American society. Entries include: Bikers, Bloods, Cholas, Crips, gang mythology, gang warfare, graffiti, Hell's Angels, Hong Kong Triads, Latin Kings, law enforcement, occultic gangs, mafia, media, prison gangs, rites, Skinheads, Streetgang Terrorism Omnibus Prevention Act, tattoos, trafficking, Wanna-bes, West Side Story, Witness Protection programs, and youth gangs.

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Capitoli di libri sul tema "Routing with profits":

Archetti, Claudia, M. Grazia Speranza e Daniele Vigo. "Chapter 10: Vehicle Routing Problems with Profits". In Vehicle Routing, 273–97. Philadelphia, PA: Society for Industrial and Applied Mathematics, 2014. http://dx.doi.org/10.1137/1.9781611973594.ch10.

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Archetti, Claudia, e M. Grazia Speranza. "Chapter 12: Arc Routing Problems with Profits". In Arc Routing, 281–99. Philadelphia, PA: Society for Industrial and Applied Mathematics, 2015. http://dx.doi.org/10.1137/1.9781611973679.ch12.

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Bruni, M. E., S. Nucamendi-Guillén, S. Khodaparasti e P. Beraldi. "The Cumulative Capacitated Vehicle Routing Problem with Profits Under Uncertainty". In AIRO Springer Series, 311–22. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34960-8_28.

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Vansteenwegen, Pieter, e Aldy Gunawan. "Definitions and Mathematical Models of Single Vehicle Routing Problems with Profits". In EURO Advanced Tutorials on Operational Research, 7–19. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29746-6_2.

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Ogino, Nagao, e Masatoshi Suzuki. "Proposal of an Inter-AS Policy Routing and a Flow Pricing Scheme to Improve ASes’ Profits". In Networking — ICN 2001, 673–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-47728-4_66.

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Farmer, Jane, Anthony McCosker, Kath Albury e Amir Aryani. "Introduction". In Data for Social Good, 1–26. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-5554-9_1.

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AbstractThe authors introduce the idea of data capability and why this is a crucial time for non-profit organisations to become skilled and resourced in data analytics. First, we explore the non-profit sector and how its role as a provider of social services in many high-income countries means it increasingly works with data. We suggest how non-profits could re-use data they already generate, along with open public data, to address their data challenges and gaps, including to evidence their social impact. Second, we explain why non-profits should aim for data capability that differs in relation to context, comparing it with data literacy and data maturity as outcomes. We propose benefits from collaborating with data and data analytics because it enables access to wider resources and more holistic solutions. We end by summarising the current relationship between citizens who are often in non-profit data as clients and customers and the lack of routine ways for non-profits to engage citizens in data work. We highlight this space of working with citizens as one where experiments and new ideas are forming. We suggest non-profits need to invest in skilling-up and resourcing within their organisations, so they are competent to work with citizens and data.

Schönfelder, René, Martin Leucker e Sebastian Walther. "Efficient Profile Routing for Electric Vehicles". In Lecture Notes in Computer Science, 21–30. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11167-4_3.

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Xie, Yubin, Zizhen Zhang, Hu Qin, Songshan Guo e Andrew Lim. "The Multi-period Profit Collection Vehicle Routing Problem with Time Windows". In Modern Advances in Applied Intelligence, 466–75. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07467-2_49.

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Bratu, Roxana. "Friday Lunch with EU Funding: Profit-Making Routines". In Corruption, Informality and Entrepreneurship in Romania, 201–24. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66667-9_7.

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Suri, Subhash, Marcel Waldvogel e Priyank Ramesh Warkhede. "Profile-Based Routing: A New Framework for MPLS Traffic Engineering". In Quality of Future Internet Services, 138–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-45412-8_11.

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Atti di convegni sul tema "Routing with profits":

Li, Jian, e Wenhua Lu. "Full Truckload Vehicle Routing Problem with Profits". In 14th COTA International Conference of Transportation Professionals. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413623.083.

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Viktorin, Adam, Dusan Hrabec e Michal Pluhacek. "Multi-Chaotic Differential Evolution For Vehicle Routing Problem With Profits". In 30th Conference on Modelling and Simulation. ECMS, 2016. http://dx.doi.org/10.7148/2016-0245.

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Aleksandrov, Martin Damyanov. "Fair Division meets Vehicle Routing: Fairness for Drivers with Monotone Profits". In 2022 IEEE Intelligent Vehicles Symposium (IV). IEEE, 2022. http://dx.doi.org/10.1109/iv51971.2022.9827432.

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Sánchez, Aitor López, Marin Lujak, Frederic Semet e Holger Billhardt. "Vehicle Routing Problem with Fair Profits and Time Windows (VRP-FPTW)". In 2023 IEEE International Conference on Systems, Man, and Cybernetics (SMC). IEEE, 2023. http://dx.doi.org/10.1109/smc53992.2023.10394012.

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Widyandaru, Rahadyas Bharata, Niniet Indah Arvitrida e Ahmad Rusdiansyah. "Integrated Location and Technician Routing Problem with Profits and Time Windows for Supporting Maintenance Activities of Technology Infrastructure". In 3rd African International Conference on Industrial Engineering and Operations Management. Michigan, USA: IEOM Society International, 2022. http://dx.doi.org/10.46254/af03.20220211.

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Mao, Wengang, Zhiyuan Li, Jonas W. Ringsberg e Igor Rychlik. "Fatigue Variation in Ships due to the Variability of Environmental Loads". In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83293.

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The design and analysis of structural strength against fatigue failure always includes large uncertainties. It is crucial to understand and identify the most important uncertainties that affect the performance, functionality and service life of an engineering structure — in particular when it comes to the safety aspect, which may involve the risk of loss of human lives. In maritime industry, it is known that due to various sources of uncertainties in ship fatigue design, some ships may survive (the occurrence of fatigue cracks which may endanger the structural integrity) much longer than their designed life, while other ships develop fatigue cracks far too early. The current investigation presents some of the most important uncertainties and their effects on the accuracy of fatigue assessments in a container vessel. The study emphasizes the analysis of the fatigue damage variation when the ship is sailing on different routings between two ports. A fatigue model developed by the authors for ship fatigue routing application is employed to estimate the long term fatigue damage. In this model, only a few parameters, i.e. the encountered significant wave height and operational profiles, are needed. The procedure of using this model for a ship fatigue routing design is described in detail. Its potential use and benefits are demonstrated in a case study by a 2,800 TEU container ship using both full-scale measurements and hindcast wave data. It is shown that awareness and careful fatigue routing design can reduce fatigue damage significantly by up to 50%!

Cardona Restrepo, J. C., C. G. Gruber e C. Mas Machuca. "Energy Profile Aware Routing". In 2009 IEEE International Conference on Communications Workshops. IEEE, 2009. http://dx.doi.org/10.1109/iccw.2009.5208041.

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Zaitseva, A., L. M. Hvattum e S. Urrutia. "Profit Maximization in Inventory Routing Problems". In 2018 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM). IEEE, 2018. http://dx.doi.org/10.1109/ieem.2018.8607713.

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Li, Zhiyao, Jiale Zhang, Xiaofeng Gao e Guihai Chen. "Maximum Profit Routing for Mobile Crowdsensing". In 2022 21st ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN). IEEE, 2022. http://dx.doi.org/10.1109/ipsn54338.2022.00042.

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Rogers, Philip J., e Matthew G. Dick. "Predicted Wheel Wear and RCF Performance Using VAMPIRE Automation Routines". In 2009 Joint Rail Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/jrc2009-63058.

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Predicted wheel performance is an invaluable tool in developing new components such as wheel profiles and truck components and also in understanding and controlling wheel and rail wear and rolling contact fatigue (RCF). This paper outlines a vehicle dynamics trial using VAMPIRE Pro to compare the predicted wear and RCF performance of the WRISA2 wheel profile developed by the National Research Council of Canada (NRC) and the United Kingdom P8 wheel profile using measured wheel profiles from an in-service trial. WRISA2 and P8 profiles were fitted to two passenger trains running in normal service. Wheel profiles were measured every 10,000 miles. These measured profiles were used to predict wear and RCF damage for each wheel of the investigated rail vehicle, using a combination of VAMPIRE transient analysis and another program called the “Whole Life Rail Model” (WLRM). This process was repeated up to 190,000 miles run in service, allowing a clear comparison of the changing rail wear and RCF performance of the two profiles up to this mileage. This process was automated using new features within VAMPIRE that allow communication to 3rd party computer programs including the WLRM, Microsoft Excel, and Microsoft Visual Basic. This research process presents itself to be a very useful tool in predicting wheel wear performance for any number of new wheel and truck components.

Rapporti di organizzazioni sul tema "Routing with profits":

Mahmassani, Hani, Christopher Cummings, Vasileios Volakakis, Laurence Audenaerd e Jessica De La Paz. Advancing Air Mobility in Illinois. Illinois Center for Transportation, febbraio 2024. http://dx.doi.org/10.36501/0197-9191/24-006.

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Advanced air mobility (AAM) is a nascent market within the aviation sector of Illinois’ transportation system, promising enhanced movement of people and cargo to previously inaccessible or underserved locations. This project addresses AAM’s prospects and impacts in the state. The research encompasses several tasks, starting with an examination of the current and projected state of the AAM industry, including pertinent regulations, technology advancements, and key industry players. Task two involves identifying the potential scale, operational profiles, and safety considerations of AAM within Illinois. Task three addresses the diverse geographic and operational environments across the state, encompassing urban, suburban, rural, intra-regional, and inter-regional areas, as well as congested and uncongested airspace. Moreover, the project aims to explore how AAM may influence Illinois’ overall transportation system, including surface and aviation components. The surface transportation system aspect involves investigating potential vehicular traffic impacts, shifts, and reductions, while the aviation system aspect includes assessing the interaction with unmanned aircraft systems, helicopters, and low-level traffic as well as airport access and routing considerations. Enabling infrastructure and facility requirements, such as communication, surface transportation access, landing facilities, power and fuel availability, and utilities, are identified in task five. Subsequently, state-level policy and regulatory recommendations, aligned with federal and state statutes, are developed in task six, considering the Illinois Aviation System Plan. Last, the research provides a high-level assessment of potential impacts, encompassing economic, social, and environmental aspects. The project’s outcomes are expected to enhance Illinois Department of Transportation’s preparedness for AAM implementation, contributing to the progressive integration of this transformative aviation technology within the state’s transportation landscape.

Galili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs e Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, ottobre 1994. http://dx.doi.org/10.32747/1994.7570549.bard.

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The objectives of this project were to develop nondestructive methods for detection of internal properties and firmness of fruits and vegetables. One method was based on a soft piezoelectric film transducer developed in the Technion, for analysis of fruit response to low-energy excitation. The second method was a dot-matrix piezoelectric transducer of North Carolina State University, developed for contact-pressure analysis of fruit during impact. Two research teams, one in Israel and the other in North Carolina, coordinated their research effort according to the specific objectives of the project, to develop and apply the two complementary methods for quality control of agricultural commodities. In Israel: An improved firmness testing system was developed and tested with tropical fruits. The new system included an instrumented fruit-bed of three flexible piezoelectric sensors and miniature electromagnetic hammers, which served as fruit support and low-energy excitation device, respectively. Resonant frequencies were detected for determination of firmness index. Two new acoustic parameters were developed for evaluation of fruit firmness and maturity: a dumping-ratio and a centeroid of the frequency response. Experiments were performed with avocado and mango fruits. The internal damping ratio, which may indicate fruit ripeness, increased monotonically with time, while resonant frequencies and firmness indices decreased with time. Fruit samples were tested daily by destructive penetration test. A fairy high correlation was found in tropical fruits between the penetration force and the new acoustic parameters; a lower correlation was found between this parameter and the conventional firmness index. Improved table-top firmness testing units, Firmalon, with data-logging system and on-line data analysis capacity have been built. The new device was used for the full-scale experiments in the next two years, ahead of the original program and BARD timetable. Close cooperation was initiated with local industry for development of both off-line and on-line sorting and quality control of more agricultural commodities. Firmalon units were produced and operated in major packaging houses in Israel, Belgium and Washington State, on mango and avocado, apples, pears, tomatoes, melons and some other fruits, to gain field experience with the new method. The accumulated experimental data from all these activities is still analyzed, to improve firmness sorting criteria and shelf-life predicting curves for the different fruits. The test program in commercial CA storage facilities in Washington State included seven apple varieties: Fuji, Braeburn, Gala, Granny Smith, Jonagold, Red Delicious, Golden Delicious, and D'Anjou pear variety. FI master-curves could be developed for the Braeburn, Gala, Granny Smith and Jonagold apples. These fruits showed a steady ripening process during the test period. Yet, more work should be conducted to reduce scattering of the data and to determine the confidence limits of the method. Nearly constant FI in Red Delicious and the fluctuations of FI in the Fuji apples should be re-examined. Three sets of experiment were performed with Flandria tomatoes. Despite the complex structure of the tomatoes, the acoustic method could be used for firmness evaluation and to follow the ripening evolution with time. Close agreement was achieved between the auction expert evaluation and that of the nondestructive acoustic test, where firmness index of 4.0 and more indicated grade-A tomatoes. More work is performed to refine the sorting algorithm and to develop a general ripening scale for automatic grading of tomatoes for the fresh fruit market. Galia melons were tested in Israel, in simulated export conditions. It was concluded that the Firmalon is capable of detecting the ripening of melons nondestructively, and sorted out the defective fruits from the export shipment. The cooperation with local industry resulted in development of automatic on-line prototype of the acoustic sensor, that may be incorporated with the export quality control system for melons. More interesting is the development of the remote firmness sensing method for sealed CA cool-rooms, where most of the full-year fruit yield in stored for off-season consumption. Hundreds of ripening monitor systems have been installed in major fruit storage facilities, and being evaluated now by the consumers. If successful, the new method may cause a major change in long-term fruit storage technology. More uses of the acoustic test method have been considered, for monitoring fruit maturity and harvest time, testing fruit samples or each individual fruit when entering the storage facilities, packaging house and auction, and in the supermarket. This approach may result in a full line of equipment for nondestructive quality control of fruits and vegetables, from the orchard or the greenhouse, through the entire sorting, grading and storage process, up to the consumer table. The developed technology offers a tool to determine the maturity of the fruits nondestructively by monitoring their acoustic response to mechanical impulse on the tree. A special device was built and preliminary tested in mango fruit. More development is needed to develop a portable, hand operated sensing method for this purpose. In North Carolina: Analysis method based on an Auto-Regressive (AR) model was developed for detecting the first resonance of fruit from their response to mechanical impulse. The algorithm included a routine that detects the first resonant frequency from as many sensors as possible. Experiments on Red Delicious apples were performed and their firmness was determined. The AR method allowed the detection of the first resonance. The method could be fast enough to be utilized in a real time sorting machine. Yet, further study is needed to look for improvement of the search algorithm of the methods. An impact contact-pressure measurement system and Neural Network (NN) identification method were developed to investigate the relationships between surface pressure distributions on selected fruits and their respective internal textural qualities. A piezoelectric dot-matrix pressure transducer was developed for the purpose of acquiring time-sampled pressure profiles during impact. The acquired data was transferred into a personal computer and accurate visualization of animated data were presented. Preliminary test with 10 apples has been performed. Measurement were made by the contact-pressure transducer in two different positions. Complementary measurements were made on the same apples by using the Firmalon and Magness Taylor (MT) testers. Three-layer neural network was designed. 2/3 of the contact-pressure data were used as training input data and corresponding MT data as training target data. The remaining data were used as NN checking data. Six samples randomly chosen from the ten measured samples and their corresponding Firmalon values were used as the NN training and target data, respectively. The remaining four samples' data were input to the NN. The NN results consistent with the Firmness Tester values. So, if more training data would be obtained, the output should be more accurate. In addition, the Firmness Tester values do not consistent with MT firmness tester values. The NN method developed in this study appears to be a useful tool to emulate the MT Firmness test results without destroying the apple samples. To get more accurate estimation of MT firmness a much larger training data set is required. When the larger sensitive area of the pressure sensor being developed in this project becomes available, the entire contact 'shape' will provide additional information and the neural network results would be more accurate. It has been shown that the impact information can be utilized in the determination of internal quality factors of fruit. Until now,

Ecuador: Use commercial marketing to increase sustainability. Population Council, 2001. http://dx.doi.org/10.31899/rh2001.1007.

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Many nongovernmental organizations sell contraceptives through retail outlets to generate income and expand access to these products. In 1998 Centro Médico de Orientación y Planifación Familiar (CEMOPLAF) employed 25 sales agents in 14 cities throughout Ecuador. These agents sold products, including contraceptive methods and home pregnancy tests, to pharmacies, physicians, other distributors, and nontraditional outlets. Contraceptive sales were CEMOPLAF’s largest source of revenue in 1997. Sales had grown rapidly during 1996–97, but CEMOPLAF managers did not know whether product sales were profitable. With support from the Population Council and Family Health International, CEMOPLAF made a detailed analysis of product sales income and costs during 1998. As noted in this summary, the analysis found that net revenue is the best measure of sales performance, since it takes product costs into account; sales agents in large cities had the largest sales and generated most of the profits, whereas sales agents in smaller cities had lower sales volume; and program managers should set up a routine financial analysis system to monitor product sales, profits, and unit costs for sound decision-making.