Classical Approach to Constrained and Unconstrained Molecular Dynamics

Classical Approach to Constrained and Unconstrained Molecular Dynamics PDF Author: Ajith Gunaratne
Publisher: Xlibris Corporation
ISBN: 1984535862
Category : Science
Languages : en
Pages : 278

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Book Description
In this book, we propose a penalty-function method for constrained molecular dynamics simulation by defining a quadratic penalty function for the constraints. The simulation with such a method can be done by using a conventional, unconstrained solver only with the penalty parameter increased in an appropriate manner as the simulation proceeds. More specifically, we scale the constraints with their force constants when forming the penalty terms.

Classical Approach to Constrained and Unconstrained Molecular Dynamics

Classical Approach to Constrained and Unconstrained Molecular Dynamics PDF Author: Ajith Gunaratne
Publisher: Xlibris Corporation
ISBN: 1984535862
Category : Science
Languages : en
Pages : 278

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Book Description
In this book, we propose a penalty-function method for constrained molecular dynamics simulation by defining a quadratic penalty function for the constraints. The simulation with such a method can be done by using a conventional, unconstrained solver only with the penalty parameter increased in an appropriate manner as the simulation proceeds. More specifically, we scale the constraints with their force constants when forming the penalty terms.

Free Energy Calculations

Free Energy Calculations PDF Author: Christophe Chipot
Publisher: Springer Science & Business Media
ISBN: 3540384480
Category : Science
Languages : en
Pages : 528

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Book Description
This volume offers a coherent account of the concepts that underlie different approaches devised for the determination of free energies. It provides insight into the theoretical and computational foundations of the subject and presents relevant applications from molecular-level modeling and simulations of chemical and biological systems. The book is aimed at a broad readership of graduate students and researchers.

Understanding Molecular Simulation

Understanding Molecular Simulation PDF Author: Daan Frenkel
Publisher: Elsevier
ISBN: 0323913180
Category : Science
Languages : en
Pages : 868

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Book Description
Understanding Molecular Simulation explains molecular simulation from a chemical-physics and statistical-mechanics perspective. It highlights how physical concepts are used to develop better algorithms and expand the range of applicability of simulations. Understanding Molecular Simulation is equally relevant for those who develop new code and those who use existing packages. Both groups are continuously confronted with the question of which computational technique best suits a given application. Understanding Molecular Simulation provides readers with the foundational knowledge they need to learn about, select and apply the most appropriate of these tools to their own work. The implementation of simulation methods is illustrated in pseudocodes, and their practical use is shown via case studies presented throughout the text. Since the second edition's publication, the simulation world has expanded significantly: existing techniques have continued to develop, and new ones have emerged, opening up novel application areas. This new edition aims to describe these new developments without becoming exhaustive; examples are included that highlight current uses, and several new examples have been added to illustrate recent applications. Examples, case studies, questions, and downloadable algorithms are also included to support learning. No prior knowledge of computer simulation is assumed. - Fully updated guide to both the current state and latest developments in the field of molecular simulation, including added and expanded information on such topics as molecular dynamics and statistical assessment of simulation results - Gives a rounded overview by showing fundamental background information in practice via new examples in a range of key fields - Provides online access to new data, algorithms and tutorial slides to support and encourage practice and learning

The Journal of Chemical Physics

The Journal of Chemical Physics PDF Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 1088

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Book Description


Dynamic Fracture Mechanics

Dynamic Fracture Mechanics PDF Author: Arun Shukla
Publisher: World Scientific
ISBN: 9814477737
Category : Technology & Engineering
Languages : en
Pages : 374

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Book Description
Covering a wide variety of topics in dynamic fracture mechanics, this volume presents state-of-the-art experimental techniques and theoretical analysis on dynamic fracture in standard and exotic materials. Written by world renowned researchers, this valuable compendium contains eleven chapters on crack initiation, crack propagation, crack arrest, crack-stress wave interactions, and experimental, analytical and numerical methods in dynamic fracture mechanics.

A Practical Introduction to the Simulation of Molecular Systems

A Practical Introduction to the Simulation of Molecular Systems PDF Author: Martin J. Field
Publisher: Cambridge University Press
ISBN: 1139465813
Category : Science
Languages : en
Pages : 294

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Book Description
Molecular simulation is a powerful tool in materials science, physics, chemistry and biomolecular fields. This updated edition provides a pragmatic introduction to a wide range of techniques for the simulation of molecular systems at the atomic level. The first part concentrates on methods for calculating the potential energy of a molecular system, with new chapters on quantum chemical, molecular mechanical and hybrid potential techniques. The second part describes methods examining conformational, dynamical and thermodynamical properties of systems, covering techniques including geometry-optimization, normal-mode analysis, molecular dynamics, and Monte Carlo simulation. Using Python, the second edition includes numerous examples and program modules for each simulation technique, allowing the reader to perform the calculations and appreciate the inherent difficulties involved in each. This is a valuable resource for researchers and graduate students wanting to know how to use atomic-scale molecular simulations. Supplementary material, including the program library and technical information, available through www.cambridge.org/9780521852524.

Understanding Molecular Simulation

Understanding Molecular Simulation PDF Author: Daan Frenkel
Publisher: Elsevier
ISBN: 0080519989
Category : Science
Languages : en
Pages : 661

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Book Description
Understanding Molecular Simulation: From Algorithms to Applications explains the physics behind the "recipes" of molecular simulation for materials science. Computer simulators are continuously confronted with questions concerning the choice of a particular technique for a given application. A wide variety of tools exist, so the choice of technique requires a good understanding of the basic principles. More importantly, such understanding may greatly improve the efficiency of a simulation program. The implementation of simulation methods is illustrated in pseudocodes and their practical use in the case studies used in the text. Since the first edition only five years ago, the simulation world has changed significantly -- current techniques have matured and new ones have appeared. This new edition deals with these new developments; in particular, there are sections on: - Transition path sampling and diffusive barrier crossing to simulaterare events - Dissipative particle dynamic as a course-grained simulation technique - Novel schemes to compute the long-ranged forces - Hamiltonian and non-Hamiltonian dynamics in the context constant-temperature and constant-pressure molecular dynamics simulations - Multiple-time step algorithms as an alternative for constraints - Defects in solids - The pruned-enriched Rosenbluth sampling, recoil-growth, and concerted rotations for complex molecules - Parallel tempering for glassy Hamiltonians Examples are included that highlight current applications and the codes of case studies are available on the World Wide Web. Several new examples have been added since the first edition to illustrate recent applications. Questions are included in this new edition. No prior knowledge of computer simulation is assumed.

Mathematical Reviews

Mathematical Reviews PDF Author:
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 1852

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Book Description


Progress In Computational Physics Of Matter: Methods, Software And Applications

Progress In Computational Physics Of Matter: Methods, Software And Applications PDF Author: Franca Manghi
Publisher: World Scientific
ISBN: 9814499854
Category :
Languages : en
Pages : 282

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Book Description
The aim of the book is to describe some of the recent advances, through computer simulation in a broad sense, in the understanding of the complex processes occurring in solids and liquids.The rapid growth of computer power, including the new parallel processors, has stimulated a ferment of new theoretical and computational ideas, which have been developed in particular by the authors in a pluriennal research project supported by Consiglio Nazionale delle Ricerche (CNR) for the development of novel software for large scale computations.The book will cover advances in ab initio (Car-Parrinello) molecular dynamics, quantum monte carlo simulations, self-consistent density functional computation of electronic states, classical molecular dynamics simulation of thermodynamic processes, chemical reactions and transport properties.Besides the description of the results of these techniques in leading edge applications, the book will address specific aspects of the algorithms and software which have been developed by the authors in order to implement in an efficient way the new theoretical advances in these computationally intensive problems.These aspects which are generally not discussed in any detail in the literature, can be of great help for newcomers in the field.

Quantum Effects in Unimolecular Reaction Dynamics

Quantum Effects in Unimolecular Reaction Dynamics PDF Author: Joshua Daniel Gezelter
Publisher:
ISBN:
Category :
Languages : en
Pages : 296

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Book Description