für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Assignment Problem is one of the first fundamental problems in the area of combinatorial optimization. Despite its historical roots, the problem has tremendous importance to date, due to its numerous real life applications in like facility location, personnel scheduling, job scheduling, production planning, project assignment, task assignment, time-tabling, vehicle routing, storage space allocation, etc. This book comprises some real life assignment and related problems involving imprecise cost/time parameters. In order to represent those imprecise parameters, interval numbers have been used here as this representation is the best among others. The associated problems have been solved using Genetic Algorithm efficiently. A salient feature of this book is that most of the algorithms have been written in a lucid manner with suitable examples using figures. This book should interest academicians, OR/GA practitioners and executives of different industries and business organizations. ····· 10361131795
für 46.71€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Urbanization is a term that represents the level of urbanization relative to the overall population living within urban areas. The rate of urbanization, on the other hand, refers to the speed at which a country is urbanizing. Urban areas have long been associated with economic growth and prosperity. However, as populations, industries and services get attracted to urban centers, urbanization, if not well managed, may come with a number of environmental challenges, prominent among which are water and air pollution, poor solid and liquid waste management, disappearance of urban greenery, loss of biological diversity, and sub-urban sprawl. The environmental challenges faced by urban planners and managers, as well as urban dwellers in general form the basis of this book. The book tries to highlight the causes and effects of these environmental challenges, particularly in less developed countries, and suggests possible codes of practice that might minimize the challenges. Among the suggestions proffered is the need for environmental education, public involvement and urban planning that integrates environmental considerations at all stages of urbanization and urban development. ····· 10361131786
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book we apply the B-ordering of vectors of length n over the ring Z4. This ordering is a generalization of the B-ordering deinedfor vectors over binary field Z2, and over the prime field Zp.Then we study greedy codes generated by this ordering over the ring Z4 using Lee distance. Also we modify the greedy algorithm to anotherone called almost` greedy. By this algorithm we show that codes and self-orthogonal codes generated by using B-ordering for Lee distanceare linear codes over Z4.An extension and a generalization of these results are applied to another ring of four alphabets which is F2 + uF2.Finally we study linear codes over the rings Z4 and F2+uF2 of constant Lee weight using the almost greedy algorithm and also the additive greedy codes over the ring Z2 x Z2. ····· 10361119671
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The control of inventory of physical goods is an important problem in almost every enterprise. Inventory must be maintained in agriculture, industry, retail establishment and military. There are several reasons why different sectors should maintain inventories of goods. The fundamental reasons for doing so is that it is either physically impossible or economically not viable to have goods arrive in a given system at the time when demands for them arises. Without inventories, customers have to wait until their orders are filled from a source. There are many other reasons for keeping inventories as well. For example, the price of some raw materials used by a manufacturer may exhibit considerable seasonal fluctuations. When price is low, it is profitable to procure a large quantity of it to last through the high priced season. In the year 1915, F. Harris formulated and optimized a simple inventory model which resulted in the well known classical economic lot-size formula. Since then, the above mentioned model has been modified and extended all over the world. All the models have been developed by considering proper illustration and sensitivity study. ····· 10361119455
für 50.31€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study was carried out to evaluate the effect of different gamma radiation doses to decontamination of micro-organisms present in Guar gum powder. As well as to study the effect of radiation on the chemical and physical properties of the carbohydrate components of the gum`s material. Two types of samples were used in this study (powder and liquid). All samples were collected from commercially available guar gum (GG), which were obtained from the company (Sudanese guar gum.ltd). Samples putted in polyethylene tightly closed container, then irradiated by applying different doses (2.5, 5, 7.5, 10, 20.30, 40, and 50 KGy) from Co-60 source at room temperature in air. ····· 10361119009
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The study of Goppa codes is important since they are a very large class of codes, near to random codes. They are easy to generate and posses an interesting algebraic structure and a lot of good properties. The idea of equivalence of codes gives a precise definition on when two codes should be considered the same. In recent International Conferences, Goppa codes were shown to be inequivalent by the fact that they had distinct weight distributions. The question rose if inequivalent Goppa codes always have distinct weight distributions. In this book we have examined quintic binary irreducible Goppa codes of length 32 and we give examples which demonstrate that this is not the case. We demonstrate that it is possible for inequivalent Goppa codes to have the same weight distribution. This subject is concerned with devising efficient encoding and decoding procedures. This is very important in communication systems using recent technology to reduce and avoid eavesdropping. ····· 10361118819
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Calculus (Latin, calculus, a small stone used forcounting) is a branch of mathematics focused onlimits, functions, derivatives, integrals, andinfinite series. This subject constitutes a majorpart of modern mathematics education. It has twomajor branches, differential calculus and integralcalculus, which are related by the fundamentaltheorem of calculus. Calculus is the study of change.A course in calculus is a gateway to other, moreadvanced courses in mathematics devoted to the studyof functions and limits, broadly called mathematicalanalysis. Calculus has widespread applications inscience, economics, and engineering and can solvemany problems for which algebra alone is insufficient.This book is prepared in easy and self-explanatoryform that help students to easily understand the mainconcepts of calculus and for teachers as well it canbe used as teaching material. I hope this book isused as a bridge to study advanced calculus conceptsand also especially students of pre- engineering,mathematics, and other natural science departmentsget excited due to the user friendly approach of thebook. ····· 10361118763
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Szemerédi`s Regularity Lemma is a powerful tool in Graph Theory, yielding many applications in areas such as Extremal Graph Theory, Combinatorial Number Theory and Theoretical Computer Science. Strong hypergraph extensions of graph regularity techniques were recently given by Nagle, R dl, Schacht and Skokan, by W.T. Gowers, and subsequently, by T. Tao. These extensions have yielded quite a few non-trivial applications to Extremal Hypergraph Theory, Combinatorial Number Theory and Theoretical Computer Science. A main drawback to the hypergraph regularity techniques above is that they are highly technical. In this thesis, we consider a less technical version of hypergraph regularity which more directly generalizes Szemerédi`s regularity lemma for graphs. The tools we discuss won`t yield all applications of their stronger relatives, but yield still several applications in extremal hypergraph theory (for so-called linear or simple hypergraphs), including algorithmic ones. This thesis surveys these lighter regularity techiques, and develops three applications of them. ····· 10361118694
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is intended as a text covering the central concepts of penalty and barrier function methods for constrained optimization problems. The lucid presentation of the text provides a good understanding of the sequential penalty/or barrier methods and the exact penalty methods. As the field of optimization, the book should be useful to operations researchers, engineers, economists, management scientists, and other specialists from the host of disciplines from which practical optimization application s are drawn. Algorithms and MATLAB codes are developed for both penalty and barrier methods and problems that have appeared frequently in the optimization literature are solved using the developed MATLAB code. The exact penalty functions: the exact absolute value and the augmented Lagrangian penalty function (ALPF) are also discussed in detail. In this case a single application of an unconstrained minimization technique as against to the sequential methods is used to solve the constrained optimization problems. ····· 10361118486
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Earth Day and other green special events are on the rise lately as Canadians continue to embrace opportunities to learn more about their natural environment. However, the impressions participants are actually taking away from these event experiences has remained largely unexplored. Coinciding with the 40th anniversary of Earth Day globally, this book examines short and long term memories of participants who attended Earth Day Celebration events in Surrey, BC, Canada to determine the most memorable aspects of their Earth Day experience. Although little academic literature exists on the subject, the applicability of special events as informal learning environments for the purposes of environmental education is discussed. The study revealed not only that hands-on stewardship activities of releasing salmon and planting trees proved the most popular among event participants but also illuminated the importance of social and familial interactions at these events. This analysis may serve to guide the efforts of community and private event organizers in order to capitalize on the public s interest in these types of events and meet both the environmental and social needs of the community. ····· 10361118443
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The chemistry of the renewable resources applied to the conception of new viable novel eco-friendly materials is a burning issue and has captured the attention of researchers both from the academic and industrial world. It is intensively connected to natural bio-resources, agricultural production and new developments in biomass management. As a result of growing environmental consciousness, the issues of sustainability, industrial ecology, eco-efficiency, and green chemistry are guiding the development of the next generation of materials and processes. Renewable resources such as natural fibers in the field of green polymeric materials with their new range of applications represent an important basis in order to fulfill the ecological objective of creating eco-friendly materials. In this book, the fundamental perceptive of natural fibers such as classification, techniques for surface modification, novel applications, general methods and chemistry of synthesis of polymers and composites, analysis of mechanical, physico-chemical and thermal properties are explored. ····· 10361118324
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book deals with the asymptotic behaviours of the solutions of the laminar boundary layer equations, complementary variational principles for unsteady Poiseuille s flow of a viscous incompressible liquid and Kantorovich method for the laminar steady flow of a viscous incompressible and electrically conducting fluid through rectangular porous pipe in presence of a transverse magnetic field. One of the important problems in the study of differential equations is that of describing the nature of the solutions for large positive values of the independent variables and this purpose is completely served by the study of asymptotic behaviours. Variational principles occur widely in physical problems and the approximate methods of the solutions of such problems are often based on associated variational principles. The basic problem of variational principle is a generalization of the elementary theory of maxima and minima of the calculus and is concerned with the determination of a function from an admissible class of functions such that a certain definite integral involving the function and some of its derivatives takes on a extreme value on a closed region. ····· 10361118193
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Linear programming has evolved over the years, due tosustained research and testing,as an excellent mathematical tool for solving manytheoretical and practical problems.Yet, escalating problem sizes in practical problemspose serious challenges for the verybest linear programming codes, running on the fastestcomputing hardware. New linearprogramming solution techniques have to developed tomeet these challenges. Theresearch performed in this book intends to addressthis issue through a comprehensivestudy of least-squares methods for solving linearprogramming problems.We have developed two new linear programmingalgorithms based on least-squarestheory. A Combined Objectives Least-Squares (COLS)algorithm uses a Non-NegativeLeast-Squares (NNLS) algorithm framework for solvingboth the Phase I and Phase IIlinear programming problems. A Least-SquaresPrimal-Dual (LSPD) algorithm usesNNLS solutions by solving small NNLS problems tosolve relatively larger linear programmingproblems. These algorithms are impervious todegeneracy. Computationalresults for the algorithms shows a superiorperformance over the simplex algorithmon a wide range of linear programming problems. ····· 10361118188
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The text foundation of differential equations has the basic rudiments needed in the studying differential equations. Partial fractions, review of fundamental calculus, Laplace transform and its inverse, etc. have been treated in details in the preliminary chapter. In the main body many examples have been done with illustrations. Also exercises have been included to enable the reader access himself/herself and he/she progresses ····· 10361118152
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The results contained in the book are related to the field of Complex Analysis of one complex variable. The classical notions of differential subordination and its dual, differential superordination, introduced by S.S.Miller and P.T.Mocanu are the starting point for new differential subordinations and superordinations obtained using differential and integral operators and the classical methods of the admissible functions theory. Using the notion of strong differential subordination introduced by J.A.Antonino and S.Romaguera, the author introduced in a published paper the dual notion of strong differential superordination. As a novelty, the book shows in two chapters the results of a joint work with Professor Gheorghe Oros in extending the classical theory of differential subordination and superordination to those new notions. Also, a new approach given by the author to the study of strong differential subordination and strong differential superordination by introducing some special classes of functions can be seen.The book can be useful to researchers who study for their PhD and to all researchers whose activity is oriented twards the domain of Geometric Function Theory. ····· 10361118053
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Energy Metabolism of the Brain is Book that was written to address the much needed interpretation of results in the field. The basic concept is to address the ideology of neuronal survival against astrocytic activation and genetic material repair. The survival of the neuron is dependent on the astrocytic neuronal glutamate-glucose cycling and the ratio of glutamate to glutamaine. the pathway also interacts with the TCa cycle, ornithine pathway and the GABA-Succinate-Glutamine pathway ····· 10361117689
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray V monografii vvodyatsya i izuchayutsya funktsii rosta dlyamnogomernykh i odnomernykh ryadov eksponent s deystvitel`nymi i kompleksnymipokazatelyami pri podkhode k singulyarnym tochkam granitsy absolyutnoy skhodimosti .Vvodyatsya stepennye funktsii rosta dlya odnomernykh stepennykh ryadov. Dlya razlichnykhvvedennykh funktsiy i kharakteristik rosta polucheny formuly , pozvolyayushchieanaliticheski vyrazit` funktsii cherez koeffitsienty i pokazateli , opornye funktsii iradiusy skhodimosti . V rabote ustanovleno , chto vvedennye funktsii rostazavisyat ot koordinat singulyarnykh tochek tipa polyusov ili sushchestvenno osobykh na granitseabsolyutnoy skhodimosti , drugie zavisyat ot napravleniya lucha ili radiusov skhodimosti . ····· 10361117656
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Considerando la importancia del cáncer en Chile y en el mundo, es necesario planear estrategias para estudiar y controlar esta enfermedad. Sin embargo, es difícil tener un pronóstico y tratamiento precisos del cáncer, debido a la complejidad del crecimiento de tumores. Por esta razón, es necesaria la identificación de los biomarcadores del cáncer y su simulación numérica en un modelo apropiado para este sistema biológico. En este trabajo proponemos un nuevo modelo matemático multiescala, lo suficientemente estable con respecto a los valores de los parámetros, y lo suficientemente robusto para predecir el crecimiento de tumores acoplado con angiogénesis tumoral y con el uso de terapias antineoplásicas. Además se realizan simulaciones numéricas del modelo, obteniendo resultados muy similares a otros trabajo publicados a día de hoy, y también se estudia la efectividad de un protocolo de inyección de medicamentos para analizar como se comporta el tiempo de explosión de la enfermedad. ····· 10361117298
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Este proyecto está enfocado en el área de abastecimiento de una empresa constructora, el cual se profundiza en aspectos de Gestión y Control de Calidad. El objetivo del modelo, es integrar la estadística, la administración de operaciones y la gestión de calidad en un solo punto y de una manera estandarizada con el fin de determinar con un criterio adecuado y una mayor exactitud los llamados `Costos Emergentes`, y de esta manera lograr disminuirlos. Estos costos también son llamados `Costos de Calidad` (Costo de Inspección, Costo de Rechazo de Inspección y Costo de rechazo Posterior), costos son visualizados sólo a largo plazo, y están asociados de una manera directa con el criterio de recepción (aceptación) o el rechazo de materiales, así como también al rechazo de las obras terminadas. ····· 10361116983
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El Parque Sierra de San Javier es un espacio natural muy cercano a un gran núcleo urbano, San Miguel de Tucumán (Argentina). En la Sierra se encuentra la comuna de San Javier, donde se ha creado el CIC (Centro Integrador Comunitario). Es a través de el CIC que se elabora un pla integral que incluye el proyecto de ecoturismo. Este proyecto consiste en una gestión de la red de senderos existentes en la Sierra. Se elabora un inventario de todos los senderos de la red y se analiza cada uno de ellos con unos índices de potencial paisajístico e interpretativo y se valora también su conservación. A partir de estos valores se elabora un plan de actuaciones de recuperación y mantenimiento, y un plan de actuación turística en el que se mejora el estado del sendero, se instalan paneles informativos y de señalización. El proyecto contiene las fichas de información de cada uno de los itinerarios con un mapa y con otras informaciones de interés para los usuarios de los senderos. ····· 10361116787
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Hoy en día, los procesos urbanos en las grandes ciudades latinoamericanas vienen precedidos por una serie de factores causales que tienden a aumentar y a explicar el riesgo en las ciudades y su naturaleza cambiante una respuesta social determinante ante los desastres una vez ocurridos determinan el grado del desarrollo de las sociedades a adaptarse al cambio sufrido, es decir, los condicionantes impuestas por las características multifacéticas de las ciudades como entornos de acción repercuten en el desarrollo de la problemática en la reconstrucción de un entorno urbano cada vez más amenazado por los embates de la naturaleza. Existe el interés en este trabajo de investigación de presentar al mismo tiempo una serie de imágenes en 3D, que reflejen de alguna forma las principales problemas ambientales que se suscitan en el perímetro urbano de Ciudad Bolívar y que tienen que ver precisamente con las amenazas anteriormente descritas. Los análisis que derivaron de esta investigación, buscan alcanzar un entendimiento general en la visualización de la problemática actual existente desde el punto de vista del riesgo ambiental asociado que esto implica sobre los conjuntos poblacionales y ····· 10361116501
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Este trabajo estudia los modelos de subasta utilizados en las transacciones comerciales de compraventa de unidades eléctricas en un mercado competitivo. Se analizan las estrategias que deben seguir las empresas generadoras, para maximizar sus ingresos, y el modelo de subasta que debe elegir el Operador del Mercado (responsable de la compra de las unidades eléctricas necesarias para satisfacer la demanda eléctrica), para minimizar el pago que debe hacer a las empresas generadoras. De esta forma se intenta establecer una ordenación entre los distintos modelos de subasta y establecer, bajo determinadas circunstancias, las ventajas de un modelo frente a los restantes. ····· 10361116499
für 88.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En este libro el autor hace un estudio integrado de la formalización, el rigor y la intuición al aprender y enseñar matemáticas particularmente, del papel de la intuición al resolver problemas de optimización. Propone y analiza problemas atractivos de optimización para primaria y secundaria y da lineamientos concretos para que estos se incluyan en los currícula y se estimule la intuición optimizadora desde la niñez, como parte de su formación científica. Sus análisis y propuestas, que constituyen su tesis doctoral, tienen como marco teórico el enfoque ontosemiótico de la cognición e instrucción matemática (EOS) y la ciencia cognitiva de las matemáticas. La tesis fue defendida en el 2008 ante el Jurado integrado por el Dr. Vicenç Font (Presidente), de la Universidad de Barcelona el Dr. Juan D. Godino, de la Universidad de Granada y el Dr. Jorge Bazán G., de la Pontificia Universidad Católica del Perú. El autor ha seguido investigando estos temas y proponiendo nuevos problemas de optimización, como lo muestran sus publicaciones (Educational Studies in Mathematics, V.75, 1, pp 107 130 UNION, desde el 2005) y sus exposiciones en foros internacionales sobre educación matemática. ····· 10361116386
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Psyllids resemble miniature cicadas and are sometimes called jumping plant lice. Most species have to be considered as pest of agriculture and forests because they feed on plant juices (phloem sup). Considerableattention has been given to ecology of Australian tree-dwelling psyllids, particularly genus Cardispina(Hemiptera: Phsyllidae). Cardiaspina is one of mostimportant genera of the Australian Psyllidae, owing to the spectacular damage it can cause to Eucalyptus spp in Eucalypt forests of Australia. The population two species of Cardiaspina (C. albitextura and C. retator) reported increase from time to time. Thebasic knowledge of those pests (biological andecological) should be known before controlling the pest. This book, therefore, provides a newinformation about biology of the pests such as ovoposition, development, phylogenetic, andecological aspects that influence their life, should be especially useful for success controlling those pest in order to save particularly forests and generally agriculture products. ····· 10361116175· 1 · ::::: · 7 ·· 8 ·· 9 ·· 10 ·· 11 ·· 12 ·· 13 · ::::: · 26 ·
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