Gerhard W rtche's Books

Investment Strategies: Implementation and Performance

By: Gerhard W”rtche

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Investment Strategies: Implementation and Performance

By: Gerhard W”rtche

This book analyzes several investment strategies that are applied to an international equity portfolio. The evaluated strategies are: the Simple Crossover Moving Average, the Equally Weighted Portfolio, the Minimum Variance Portfolio, the Certainty Equivalent Tangency Portfolio, the James Stein Estimator and the Black Litterman Model. Besides the applied methodology part which demonstrates how to implement the considered strategies, the empirical section shows from the viewpoint of a European investor whether the final performance parameters are mainly due to returns of foreign markets or through exchange rate developments. The investigation is carried out from an ex ante as well as from an ex post perspective. In order to examine the time window of a strategy, the in- and the out of the sample periods are varied. The empirical investigation indicates that - the relative young more sophisticated approaches are superior to the traditional strategies, the impact of exchange rate developments cannot be ignored in an equity portfolio, nearly no conclusion can be drawn in the context of a superior in- and out of the sample period.

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Diplomica Verlag

Published Date

ISBN 10

3836690144

ISBN 13

9783836690140

Environmental Geology

Handbook of Field Methods and Case Studies

By: Klaus Knödel,Gerhard Lange,Hans-Jürgen Voigt

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Environmental Geology

Handbook of Field Methods and Case Studies

By: Klaus Knödel,Gerhard Lange,Hans-Jürgen Voigt

This illustrated handbook describes a broad spectrum of methods in the fields of remote sensing, geophysics, geology, hydrogeology, geochemistry, and microbiology designed to investigate landfill, mining and industrial sites. The descriptions provide information about the principle of the methods, applications and fundamentals. This handbook also deals with the stepwise procedure for investigating sites and common problems faced in efficient implementation of field operations.

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Page Count

1375

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3540746714

ISBN 13

9783540746713

Intermetallics

By: Gerhard Sauthoff

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Intermetallics

By: Gerhard Sauthoff

Derived from the highly acclaimed series Materials Science and Technology, this book covers the properties as well as the present and emerging applications of intermetallics. Mechanical characteristics, microstructure as well as the environmental influence on intermetallics are treated in depth. In addition, the prospects and risks inherent in materials development as well as typical applications of intermetallics are critically assessed. It is the author's aim to provide the basis for understanding the physical mechanisms, which influence the properties of the materials and ultimately their areas of application. Materials covered include: Titanium Aluminides and Related Phases * Nickel Aluminides and Related Phases * Iron Aluminides and Related Phases * Cu-Base Phases * A15 Phases * Laves Phases * Rare-Earth Compound * Beryllides * Silicides Intermetallics is a valuable source of information for researchers and graduate students working in materials science, metallurgy, condensed-matter physics, and engineering.

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Page Count

165

Publisher

John Wiley & Sons

Published Date

ISBN 10

3527615407

ISBN 13

9783527615407

Reviews in Modern Astronomy 2

By: Gerhard Klare

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Reviews in Modern Astronomy 2

By: Gerhard Klare

The second yearbook published by the Astronomische Gesellschaft presents the breadth and depth of current astronomical research. Martin Rees' Schwarzschild Lecture "Is there a massive black hole in every galaxy?" is followed by several extensive surveys of the new research opportunities opening up with the next generation of telescopes, dedicated satellites, and innovative instrumentation. Among others themes, the spectroscopy of SN 198/A, chemically peculiar stars, and extragalactic radio jets are dealt with at length. The volume is rounded off by shorter reviews of up-front research topics ranging from accretion disks and solar physics to cosmic rays and stellar evolution.

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Page Count

360

Publisher

Springer

Published Date

ISBN 10

3540518401

ISBN 13

9783540518402

Computational Electronics

Semiclassical and Quantum Device Modeling and Simulation

By: Dragica Vasileska,Stephen M. Goodnick,Gerhard Klimeck

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Computational Electronics

Semiclassical and Quantum Device Modeling and Simulation

By: Dragica Vasileska,Stephen M. Goodnick,Gerhard Klimeck

Starting with the simplest semiclassical approaches and ending with the description of complex fully quantum-mechanical methods for quantum transport analysis of state-of-the-art devices, Computational Electronics: Semiclassical and Quantum Device Modeling and Simulation provides a comprehensive overview of the essential techniques and methods for effectively analyzing transport in semiconductor devices. With the transistor reaching its limits and new device designs and paradigms of operation being explored, this timely resource delivers the simulation methods needed to properly model state-of-the-art nanoscale devices. The first part examines semiclassical transport methods, including drift-diffusion, hydrodynamic, and Monte Carlo methods for solving the Boltzmann transport equation. Details regarding numerical implementation and sample codes are provided as templates for sophisticated simulation software. The second part introduces the density gradient method, quantum hydrodynamics, and the concept of effective potentials used to account for quantum-mechanical space quantization effects in particle-based simulators. Highlighting the need for quantum transport approaches, it describes various quantum effects that appear in current and future devices being mass-produced or fabricated as a proof of concept. In this context, it introduces the concept of effective potential used to approximately include quantum-mechanical space-quantization effects within the semiclassical particle-based device simulation scheme. Addressing the practical aspects of computational electronics, this authoritative resource concludes by addressing some of the open questions related to quantum transport not covered in most books. Complete with self-study problems and numerous examples throughout, this book supplies readers with the practical understanding required to create their own simulators.

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Page Count

866

Publisher

CRC Press

Published Date

ISBN 10

1351834886

ISBN 13

9781351834889

Physical Properties (Continued)

By: Elisabeth Koch-Bienemann,Liselotte Berg,Gerhard Czack

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Physical Properties (Continued)

By: Elisabeth Koch-Bienemann,Liselotte Berg,Gerhard Czack

The present volume continues the edition of a number of supplement volumes dealing with the elements tungsten and molybdenum. Technology and metallurgy of molybdenum and tungsten have been described in the respective volumes A 1. Tungsten Supplement Volume A 2 has been published and comprises the nuclear and atomic properties, sections on the clusters and the vapor, the electronic structure, the lattice dynamics, and the basic crystallographic properties. The present volume A/3 deals with the relationships between lattice defects and mechanical properties. Each of the subsequent chapters, concerning the thermal, electrical, magnetic, and optical properties, has a somewhat larger scope than the corresponding chapter in the Molybdenum Supplement Volumes. Within these chapters, some noteworthy facts are the following: the melting point of tungsten is the highest of all metals, i.e., 3695 K, the behavior of the current carriers has been studied in great detail by numerous methods, and the emissivity characteristics have received much attention above all because of the high melting point. Another special feature is the very intense study of all surface properties and the phenomena, which will be described in a forthcoming volume.

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Page Count

296

Publisher

Springer

Published Date

ISBN 10

3540935940

ISBN 13

9783540935940

Endosonography in Obstetrics and Gynecology

By: Gerhard Bernaschek,Josef Deutinger,Alfred Kratochwil

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Endosonography in Obstetrics and Gynecology

By: Gerhard Bernaschek,Josef Deutinger,Alfred Kratochwil

More than 25 years ago, when ultrasound diagnostic methods were first intro duced into gynecology and obstetrics, few of the pioneers of these techniques sus pected what importance sonographic diagnosis was destined to assume. It was soon recognized that the organs of the lesser pelvis could be visualized to much greater advantage by inserting probes into the natural bodily orifices than by abdominal sonography. Full exploitation of the physical properties of ultra sound had to wait, as so often in the history of sonography, for technological ad vances. Endosonography in the form available to us today combines the advantages of endoscopy and sonography. The next light-reflecting surface, once the limit of en doscopy, represents no barrier to ultrasound. A whole range of both diagnostic and therapeutic procedures can be sonographically guided. Blood flow in vessels lying deep in the lesser pelvis can now be measured by means of vaginal duplex sonography.

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Page Count

500

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642741118

ISBN 13

9783642741111

Scheffer/Schachtschabel Soil Science

By: Hans-Peter Blume,Gerhard W. Brümmer,Heiner Fleige,Rainer Horn,Ellen Kandeler,Ingrid Kögel-Knabner,Ruben Kretzschmar,Karl Stahr,B.-Michael Wilke

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Scheffer/Schachtschabel Soil Science

By: Hans-Peter Blume,Gerhard W. Brümmer,Heiner Fleige,Rainer Horn,Ellen Kandeler,Ingrid Kögel-Knabner,Ruben Kretzschmar,Karl Stahr,B.-Michael Wilke

The soils are fundamental to our existence, delivering water and nutrients to plants, that feed us. But they are in many ways in danger and their conservation is therefore a most important focus for science, governments and society as a whole. A team of world recognised researchers have prepared this first English edition based on the 16th European edition. • The precursors and the processes of soil development • The physical, biological and chemical properties of soils • Nutrients and Pollutants • The various soil classifications with the main focus on the World Reference Base for Soil Resources (WRB) • The most important soils and soil landscapes of the world • Soil Evaluation Techniques • Basic Principles of Soil Conservation Whoever works with soils needs this book.

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Page Count

630

Publisher

Springer

Published Date

ISBN 10

3642309429

ISBN 13

9783642309427

Numerical Simulation in Molecular Dynamics

Numerics, Algorithms, Parallelization, Applications

By: Michael Griebel,Stephan Knapek,Gerhard Zumbusch

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Numerical Simulation in Molecular Dynamics

Numerics, Algorithms, Parallelization, Applications

By: Michael Griebel,Stephan Knapek,Gerhard Zumbusch

This book details the necessary numerical methods, the theoretical background and foundations and the techniques involved in creating computer particle models, including linked-cell method, SPME-method, tree codes, amd multipol technique. It illustrates modeling, discretization, algorithms and their parallel implementation with MPI on computer systems with distributed memory. The text offers step-by-step explanations of numerical simulation, providing illustrative code examples. With the description of the algorithms and the presentation of the results of various simulations from fields such as material science, nanotechnology, biochemistry and astrophysics, the reader of this book will learn how to write programs capable of running successful experiments for molecular dynamics.

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472

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3540680950

ISBN 13

9783540680956

Learning

Nineteen Scenarios from Everyday Life

By: Gerhard Steiner

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Learning

Nineteen Scenarios from Everyday Life

By: Gerhard Steiner

This volume deals with learning, how it occurs and under which circumstances.

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344

Publisher

Cambridge University Press

Published Date

ISBN 10

0521478006

ISBN 13

9780521478007

Hitler's Foreign Policy 1933-1939

The Road to World War II

By: Gerhard L. Weinberg

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Hitler's Foreign Policy 1933-1939

The Road to World War II

By: Gerhard L. Weinberg

Hitler’s path to war consisted of two different stages that paralleled the internal development of Germany. From 1933 to the end of 1936, he created a diplomatic revolution in Europe. From a barely accepted equal, Germany became the dominant power on the continent. With the remilitarization of the Rhineland, the stalemate in the Spanish Civil War, the forming of the Axis, and the signing of the Anti-Comintern Pact, the first phase was completed. In the second phase, the diplomatic initiative in the world belonged to Germany and its partners. Germany’s march toward war therefore became the central issue in world diplomacy.

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Page Count

892

Publisher

Enigma Books

Published Date

ISBN 10

1936274841

ISBN 13

9781936274840

Book's by Gerhard W rtche

Investment Strategies: Implementation and Performance

Investment Strategies: Implementation and Performance

Environmental Geology

Environmental Geology

Intermetallics

Intermetallics

Reviews in Modern Astronomy 2

Reviews in Modern Astronomy 2

Computational Electronics

Computational Electronics

Physical Properties (Continued)

Physical Properties (Continued)

Endosonography in Obstetrics and Gynecology

Endosonography in Obstetrics and Gynecology

Scheffer/Schachtschabel Soil Science

Scheffer/Schachtschabel Soil Science

Numerical Simulation in Molecular Dynamics

Numerical Simulation in Molecular Dynamics

Learning

Learning

Hitler's Foreign Policy 1933-1939

Hitler's Foreign Policy 1933-1939

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