One of The New York Times Book Review‘s 10 Best Books of the Year
On the morning of December 26, 2004, on the southern coast of Sri Lanka, Sonali Deraniyagala lost her parents, her husband, and her two young sons in the tsunami she miraculously survived. In this brave and searingly frank memoir, she describes those first horrifying moments and her long journey since. She has written an…
Please Disable Adblock to Show Download Link
DOWNLOAD eBooks
Author : Sonali Deraniyagala
Genre : Biography & Autobiography
Summary : One of The New York Times Book Review's 10 Best Books of the Year On the morning of December 26, 2004, on the southern coast of Sri Lanka, Sonali Deraniyagala lost her parents, her husband, and her two young sons in the tsunami she miraculously survived. In this brave and searingly frank memoir, she describes those first horrifying moments and her long journey since. She has written an engrossing, unsentimental, beautifully poised account: as she struggles through the first months following the tragedy, furiously clenched against a reality that she cannot face and cannot deny; and then, over the ensuing years, as she emerges reluctantly, slowly allowing her memory to take her back through the rich and joyous life she’s mourning, from her family’s home in London, to the birth of her children, to the year she met her English husband at Cambridge, to her childhood in Colombo; all the while learning the difficult balance between the almost unbearable reminders of her loss and the need to keep her family, somehow, still alive within her.
Please Disable Adblock to Show Download Link
DOWNLOAD eBooks
Author : Ursula K. Le Guin
Genre : Literary Criticism
Summary : Join Ursula K. Le Guin as she explores a broad array of subjects, ranging from Tolstoy, Twain, and Tolkien to women's shoes, beauty, and family life. With her customary wit, intelligence, and literary craftsmanship, she offers a diverse and highly engaging set of readings. The Wave in the Mind includes some of Le Guin's finest literary criticism, rare autobiographical writings, performance art pieces, and, most centrally, her reflections on the arts of writing and reading.
Please Disable Adblock to Show Download Link
DOWNLOAD eBooks
Author : Birendra Nath Mandal
Genre : Mathematics
Summary : The theory of water waves is most varied and is a fascinating topic. It includes a wide range of natural phenomena in oceans, rivers, and lakes. It is mostly concerned with elucidation of some general aspects of wave motion including the prediction of behaviour of waves in the presence of obstacles of some special configurations that are of interest to ocean engineers. Unfortunately, even the apparently simple problems appear to be difficult to tackle mathematically unless some simplified assumptions are made. Fortunately, one can assume water to be an incompressible, in viscid and homogeneous fluid. The linearised theory of water waves is based on the assumption that the amplitude of the motion is small compared to the wave length. If rotational motion is assumed, then the linearised theory of water waves is essentially concerned with solving the Laplace equation in the water region together with linearised boundary condition. There are varied classes of problems that have been/are being studied mathematically in the literature within the framework of linearised theory of water waves for last many years. Scattering by obstacles of various geometrical configurations is one such class of water wave problems. This book is devoted to advanced mathematical work related to water wave scattering. Emphasis is laid on the mathematical and computational techniques required to study these problems mathematically. The book contains nine chapters. The first chapter is introductory in nature. It includes the basic equations of linearised theory for a single layer fluid, a two-layer fluid, solution of dispersion equations, and a general idea on scattering problems and the energy identity in water with a free surface. Chapter 2 is concerned with wave scattering involving thin rigid plates of various geometrical configurations, namely, plane vertical barriers or curved barriers, inclined barriers, horizontal barrier, and also thin elastic vertical plate. For the horizontal case, the barrier is submerged below an ice-cover modelled as a thin elastic plate floating on water. Chapter 3 discusses wave scattering by a rectangular trench by using Galerkin technique. Chapter 4 involves wave scattering by a dock by using Carleman singular integral equation followed by reduction to Riemann-Hilbert problems. Chapter 5 involves several wave scattering problems involving discontinuities at the upper surface of water by using the Wiener-Hopf technique, by reduction to Carleman singular integral equations. Chapter 6 considers scattering by a long horizontal circular cylinder either half immersed or completely submerged. In chapter 7, some important energy identities are derived for scattering problems in a single-layer and also in a two-layer fluid. Chapter 8 is concerned with wave scattering in a two-layer fluid by a thin vertical plate and by a long horizontal circular cylinder submerged in either of the two layers. Chapter 9 is the final chapter which considers a number of wave scattering problems in a single-layer or a two-layer fluid with variable bottom topography by using a simplified perturbation analysis It is hoped that this book will be useful to researchers on water waves. The several wave scattering problems presented in the book are mostly based on the research work carried out by the authors and their associates.
Please Disable Adblock to Show Download Link
DOWNLOAD eBooks
Author : Martin Schanz
Genre : Technology & Engineering
Summary : Wave propagation is an important topic in engineering sciences, especially, in the field of solid mechanics. A description of wave propagation phenomena is given by Graff [98]: The effect of a sharply applied, localized disturbance in a medium soon transmits or 'spreads' to other parts of the medium. These effects are familiar to everyone, e.g., transmission of sound in air, the spreading of ripples on a pond of water, or the transmission of radio waves. From all wave types in nature, here, attention is focused only on waves in solids. Thus, solely mechanical disturbances in contrast to electro-magnetic or acoustic disturbances are considered. of waves - the compression wave similar to the In solids, there are two types pressure wave in fluids and, additionally, the shear wave. Due to continual reflec tions at boundaries and propagation of waves in bounded solids after some time a steady state is reached. Depending on the influence of the inertia terms, this state is governed by a static or dynamic equilibrium in frequency domain. However, if the rate of onset of the load is high compared to the time needed to reach this steady state, wave propagation phenomena have to be considered.
Please Disable Adblock to Show Download Link
DOWNLOAD eBooks
Author : Christopher Lavers
Genre : Technology & Engineering
Summary : Reeds Introductions: Physics Wave Concepts for Marine Engineering Applications covers the fundamental theoretical maritime physics concepts which underpin electromagnetic wave and sonar principles as developed in most maritime-related courses, whether Naval, Coastguard or Merchant Marine engineering. For these reasons it is vital that maritime users have a basic understanding of the concepts upon which many essential modern sea-going sensors and communications devices now operate. Knowledge regarding electromagnetic waves and electromagnetic devices is an established merchant navy sea service requirement, particularly for the Standards in Training and Certification in Watchkeeping (STCW95) qualification in various Maritime Coastguard Agency exams, e.g. Marine Electrotechnology (as Chief Engineer and Second Engineer), as mandated by the UK Department for Transport. This short introductory book is written as simply as possible to support growing numbers of overseas students for whom English is not their first language. This volume provides a comprehensive study of maritime physics principles and provides a firm foundation prior to reading and studying of the following Reeds Marine Engineering series: Vols 1, 3, 6, 7, 14 and 15. Students having read this easy-to-read volume will be better prepared for the more in depth study of the other volumes listed.
Please Disable Adblock to Show Download Link
DOWNLOAD eBooks
Author : Kazuyoshi Takayama
Genre : Science
Summary : Shock wave research covers important inderdisciplinary areas which range from basic topics on gasdynamics, combustion and detonation, physico-chemistry of high temperature gases, plasma physics, astro and geophysics, materials science, astronautics and space technology to medical and industrial applications. This book includes 202 papers presented at the 18th the International Symposium on Shock Waves which describe the research frontier of shock wave phenopmena and 14 plenary lectures which show the state of the art of various fields of shock wave research. This proceedings is a unique collection of most important and updated shock wave research.
Please Disable Adblock to Show Download Link
DOWNLOAD eBooks
Author : Morton Rhue (pseud. van Todd Strasser.)
Genre :
Summary :