Tag: Collisions

Free Download Introduction to the Theory of Vehicular Collisions
English | 2025 | ISBN: 3031623541 | 120 Pages | PDF (True) | 5.4 MB
The phenomena that occur during a vehicle collision are extremely complex, to such an extent that car manufacturers are forced to carry out full-scale tests in order to draw conclusions about vehicle behavior. Fortunately, for the engineering calculations required in a collision analysis, equations can be considered, which, with reasonable development, and with good judgment, lead to reliable results. This book seeks to take a first step on the exciting topic of the Theory of Vehicular Collisions, because this field of science has crucial importance, for example, in clarifying circumstances of serious criminal and civil penalties situations. A brief historical review about the development of collisions theory is also included.

Free Download Theory of Electron-Atom Collisions: Part 1: Potential Scattering By Philip G. Burke, Charles J. Joachain (auth.)
1995 | 255 Pages | ISBN: 1489915699 | PDF | 9 MB
The authors aim to hone the theory of electron-atom and electron-ion collisions by developing mathematical equations and comparing their results to the wealth of recent experimental data. This first of three parts focuses on potential scattering, and will serve as an introduction to many of the concepts covered in Parts II and III. As these processes occur in so many of the physical sciences, researchers in astrophysics, atmospheric physics, plasma physics, and laser physics will all benefit from the monograph.

Free Download Solar Flares and Collisions between Current-Carrying Loops: Types and Mechanisms of Solar Flares and Coronal Loop Heating By Jun-Ichi Sakai, Cornelis De Jager (auth.), Jun-Ichi Sakai, Cornelis De Jager (eds.)
1996 | 192 Pages | ISBN: 9401066353 | PDF | 11 MB
In this volume we compare modem observations of solar flares with results from recent theoretical research and simulation studies on current-carrying loops and their interaction. These topics have undergone rapid developments in the course of recent years. Observational results by X-ray monitoring and imaging spacecraft in the seventies and by dedicated imaging instrumentation in the satellites Solar Max imum Mission and Hinotori, launched 1980 and 1981, have shown the importance of X-ray imaging for understanding the ignition processes of solar flares. Such observations, in tum, stimulated theoretical studies, centered around the flux-tube concept. The classical idea that flares originate by interaction of current-carrying loops was developed and proved to be promising. Concepts on reconnection and coalescence of flux tubes were developed, and their consequences studied. The Yohkoh spacecraft, launched 1991, showed the overwhelming importance of coro nal flux tubes and their many possible ways of interaction. Subsequent and parallel theoretical studies and simulations, differentiating between the topology of interact ing fluxtubes, demonstrated that the mutual positioning and the way of interaction are important for the subsequent processes of energy release in flares and the many associated phenomena such as the expUlsion of jets and the emission of X -ray and microwave radiation. The new developments now enable researchers to understand and classify flares in a physically significant way. Various processes of accelera tion are active in and after flares on greatly varying timescales; these can now be distinguished and explained.

Free Download Computational Methods for Electron-Molecule Collisions By T. N. Rescigno, C. W. McCurdy, A. E. Orel, B. H. Lengsfield III (auth.), Winifred M. Huo, Franco A. Gianturco (eds.)
1995 | 364 Pages | ISBN: 1475797990 | PDF | 18 MB
The collision of electrons with molecules and molecular ions is a fundamental pro cess in atomic and molecular physics and in chemistry. At high incident electron en ergies, electron-molecule collisions are used to deduce molecular geometries, oscillator strengths for optically allowed transitions, and in the case of electron-impact ionization, to probe the momentum distribution of the molecule itself. When the incident electron energy is comparable to or below those of the molecular valence electrons, the physics involved is particularly rich. Correlation and exchange effects necessary to describe such collision processes bear a close resemblance to similar efft:cts in the theory of electronic structure in molecules. Compound state formations, in the form of resonances and vir tual states, manifest themselves in experimental observables which provide details of the electron-molecule interactions. Ro-vibrational excitations by low-energy electron collisions exemplify energy transfer between the electronic and nuclear motion. The role of nonadiabatic interaction is raised here. When the final vibrational state is in the continuum, molecular dissociation occurs. Dissociative recombination and dissociative attachment are examples of such fragmentation processes. In addition to its fundamental nature, the study of electron-molecule collisions is also motivated by its relation to other fields of study and by its technological appli cations. The study of planetary atmospheres and the interstellar medium necessarily involve collision processes of electrons with molecules and molecular ions.

Free Download Advances in Atomic Molecular Collisions
English | 2024 | ISBN: 9819770629 | 292 Pages | PDF EPUB (True) | 59 MB
This book highlights the advances made in the field of atomic and molecular collisions both in the experimental and theoretical fronts. The study of the collision of charged particles with neutral target atoms or molecules started many decades ago. The charged particles mostly include electrons and fast heavy ions. This book discusses basic research in atomic molecular collision physics along with some of the important applications in other branches of physics and peripheral fields, such as plasma physics, radiobiology, astrophysics, nanosciences, antimatter physics, and surface science. The complexity of the target systems led to the need for more sophisticated experimental tools as well as advanced theoretical models. Since the last decade, a major focus has been to investigate the behavior of biomolecules (such as nucleobases) and water when irradiated with protons and heavy ions due its applications toward hadron therapy for cancer and radiobiology in general. The collisions with polycyclic aromatic hydrocarbons find applications toward astrochemistry that take place in the interstellar medium, solar wind as well as UV plasmonic devices. It has been proposed that the collective excitation in these molecules plays a major role in these applications. This book presents details about the advances made and the challenges faced in both experimental and theoretical front for studying the atomic collisions including these aspects. The book can be used as a reference for researchers, professionals, and also students. The recent advances in the sophisticated experimental tools for various types of experiments as well as the progress in the experimental methodologies are addressed along with the advancement in the theoretical front.

Free Download Collisions of Conflict : Studies in American History and Culture, 1820-1920 By Sobieraj, Jerzy
2014 | 152 Pages | ISBN: 3631648480 | PDF | 2 MB
This book explores and analyzes the problems and challenges that have resulted from the Civil War, Reconstruction, slavery, and segregation in North America. These painful chapters in American history have continued along racial and regional lines and are of particular interest today when the USA are for the first time governed by an African American president. The postscriptum extends the main narrative by focusing on selected writers’ activities and fiction during the Civil War and Reconstruction

Free Download Slobodan D. Bosanac, "Long-Lived States in Collisions"
English | 2018 | ISBN: 0849368715 | PDF | pages: 181 | 9.7 mb
This book contains essentially two parts. A Review of the classical, quantum, and semi-classical theories of collision are given in the first part, while their applications to the atom and molecule collisions are given in the second part. The book is useful to scientists other than atom and molecular physicists, and is as general as possible, however, with the emphasis on the atom and molecule collisions.

Free Download Leah Jing McIntosh, "Collisions: Fictions Of The Future:An Anthology Of Australian Writers OfColour"
English | ISBN: 0648795187 | 2020 | 141 pages | EPUB | 807 KB
This collection of short stories showcases some of the best work that Australian literature has to offer in this new decade. Featuring work from both emerging and established writers of colour, the stories in Collisions transcend genre and experiment with style. They are necessary reading for everybody with an interest in the future of fiction and our planet. Although many of these visions are dystopic, the quality of their writers is something the future has to look forward to.

Free Download Galaxy Collisions: Forging New Worlds from Cosmic Crashes by Curtis Struck
English | PDF | 2011 | 292 Pages | ISBN : 0387853707 | 143.29 MB
Galaxy collisions are the key process in building galaxies, triggering the formation of stars and the build-up of heavy elements that allow the formation of planets and solar systems. This book presents the revolutionary research advances achieved in the last decade and lucidly explains the underlying dynamical processes.