Shells

An increase in the use of composite materials in areas of engineering has led to a greater demand for engineers versed in the design of structures made from such materials. This book offers students and engineers tools for designing practical composite structures. Among the topics of interest to the designer are stress-strain relationships for a wide range of anisotropic materials; bending, buckling, and vibration of plates; bending, torsion, buckling, and vibration of solid as well as thin walled beams; shells; hygrothermal stresses and strains; finite element formulation; and failure criteria. More than 300 illustrations, 50 fully worked problems, and material properties data sets are included. Some knowledge of composites, differential equations, and matrix algebra is helpful but not necessary, as the book is self-contained. Graduate students, researchers, and practitioners will value it for both theory and application.

A unifying element that links the apparently diverse phenomena observed in optical processes is the dielectric dispersion of matter. It describes the response of matter to incoming electromagnetic waves and charged particles, and thus predicts their behavior in the self-induced field of matter, known as polariton and polaron effects. The energies of phonon, exciton and plasmon, quanta of collective motions of charged particles constituting the matter, are also governed by dielectric dispersion. Since the latter is a functional of the former, one can derive useful relations for their self-consistency. Nonlinear response to laser light inclusive of multiphoton processes, and excitation of atomic inner shells by synchrotron radiation, are also described. Within the configuration coordinate model, photo-induced lattice relaxation and chemical reaction are described equally to both ground and relaxed excited states, to provide a novel and global perspective on structural phase transitions a

This book is about the major groups of animals, their structure, physiology and ways of life. Each chapter, except the first, deals with a taxonomic group of animals, usually a phylum or class. Brief descriptions of a few examples are followed by more detailed discussion of selected topics. Some of the topics are peculiarities of the groups (for example, the shells of molluscs and the flight of insects). Others are more widespread features or properties of animals which can be illustrated particularly well by reference to the group. Many experiments are described, on the grounds that it is as important and interesting to know how information is obtained, as to know the information itself. The text demonstrates the extraordinary diversity of animals, without becoming encumbered with excessive morphological and taxonomic information.

Shell structures form key components in a very wide range of engineering enterprise. The theory of shell structures is an old and large subject, with a huge literature. However, this book is not a compilation of results from the past. Instead, it is an attempt to bring the essence of the subject within the grasp of engineers. It tackles the fundamental question of how bending and stretching effects combine and interact in shell structures from a physical point of view; and it shows that this approach leads to an understanding of the structural mechanics of shells in general, and to useful results in particular problems. The first half of the book is concerned mainly with the basic ideas and equations of equilibrium, geometry and elasticity, and their combination in various useful ways. In particular, it includes a simple treatment of the geometry of general curved surfaces. The second half of the book first investigates the behaviour of various practical shell structures under static l

A group of acknowledged experts describe the use of spectroscopy as a diagnostic probe of astronomical environments. The broad sweep of the book enables good coverage to be given to all the situations in which plasmas are encounteres in astronomical investigations. Specifically, the articles include quasars, Seyfert galaxies, active galactic nuclei, the solar chromosphere and corona, galactic HII regions, circumstellar shells, interstellar gas, supernova remnants and interstellar clouds. The book includes an account of the basic aspects of spectroscopy in a chapter on laboratory astrophysics. The book was stimulated by the extraordinary contributions to astronomical spectroscopy of Leo Goldberg, and is dedicated to him. Throughout, this book is written with the needs of students in astronomy and astrophysics in mind. Each chapter includes a summary or conclusions about the future direction of research. Furthermore there are extensive bibliographies. This textbook is therefore an excell

★ 2019年英國國家學術院納伊夫‧魯贊跨文化理解獎★ 2020年沃爾夫森歷史獎入圍作品★ 一部跨越數世紀的宏大且權威的西非歷史★ 重塑西非諸王國的世界及其與西方的關係★ 著名歷史作家、《穿越非洲兩百年》《汴京之圍》作者郭建龍傾心獻譯西非似乎一直處於世界的偏僻角落，不借助西方之手，就無法走出部落制與原始的陰影。然而，當托比•格林踏上西非這片土地，翻開落滿灰塵的檔案材料時，他發現真相並非如此。格林從專業和學術的角度為我們重塑了西非諸王國的世界，在這個世界裡，王國的存在建立於戰爭、稅收、貿易、宗教信仰、權力的展示以及藝術品的創造之上。這是一部跨越數世紀的宏大且權威的西非歷史，它從政治、經濟、文化、宗教等方面對西非社會進行了全方位剖析，尤其關注奴隸貿易時期西非與西方世界的關係，將該地區及其人民重新寫進了他們也身處其中的世界史。

Photographs and text examine different types of shells, including seashells, eggshells, and fossil shells, focusing on such aspects as how shells camouflage themselves and how they may be collected.

Labeled photographs introduce young readers to the words for common animals that are divided into nine different categories, including big eyes, long legs, and hard shells.

Money talks . . . about history!Shells. Coins. Paper bills. Credit cards. Bitcoins. People have used all kinds of objects to buy, sell, or trade. Aren’t you curious: whatis money? Developed with numis

Photographs and simple text introduce some of the marine animals that live in shells.

A new edition of the standard text/reference for analysis and design of petrochemical process equipment, revised to reflect current practice. Covers the theory of plates and shells and its industrial

Palaeoclimatology is the study of past climates and climate change, and uses a variety of methods to obtain data preserved within rocks, sediments, ice, tree rings, and shells and other matter. Studie

Pat Hammond is not your ordinary artist. In fact, she doesn't even consider herself an artist. She takes everyday objects, such as spinning tops and jars of cicada shells, and infuses them with new me

A tense and thrilling ghost story from the internationally acclaimed author of War Horse. It all began with a necklace, made of glistening pink cowrie shells. A long, long necklace that had taken Cher

In 1916, the people are settling down to the business of war. As conscription reaches into every household, Britain turns out men and shells in industrial numbers from army camps and munitions factori

Kizzy, a spirited child, lives with her family on a one-room ramshackle houseboat in Big Pearl, Arkansas. They fish, dig for mussels, look for pearls, and sell the shells to the button factory. It is

Horsemeat in burgers was hard to swallow, but there are far more sinister culinary crimes afoot...Chicken eggs that haven’t come from chickens, melamine in infant’s milk in China, nut shells in spices

Sometimes the toughest journey is the one that takes you back to your roots. For Katie, navigating life and love is trickier than walking barefoot on a beach full of broken shells. Maybe Katie will br

At the age of 6, I discovered a jar of brightly colored shells under my grandmother's kitchen sink. When I inquired where they had come from, she did not answer. Instead, she told me in broken English

Collected in a single handy volume, the definitive guides to life (and death!) in the Imperial Guard. It won’t deflect mass-reactive bolt shells, but it could still save your skin.You there, soldier!

The Golden Age is a piece written in the carefree style of the music written in North America at the turn of the 20th Century. The concerts in band shells throughout Canada and the United States conta

Max and Ruby are very busy bunnies! Join them in some of their favorite pastimes, including playing soccer in the yard, dressing up in Grandma's attic, looking for shells at the beach, and more! Inclu

Beloved author Josie Iselin's collaged images of the treasures we live with as reminders of the beachfrom sea glass to driftwood, shells to stonesevoke the timeless elements of sand, ocean, and refres

"Throughout the ages, many things have been used as currency: livestock, grains, spices, shells, beads, and now paper. But only two things have ever been money: gold and silver. When paper money bec

There are lots of babies in the bayou, and even though they might have sharp white teeth, hard shells, webbed feet, or quick claws, their mothers still need to watch over them and protect them from ha

Examines the symbolic and material meaning of money, from shekels, shells, and beads to gold, silver, checks, and credit cards, and discusses how coins and banknotes are made, the value of money durin

This study examines the role of cowrie-shell money in West African trade, particularly the slave trade. The shells were carried from the Maldives to the Mediterranean by Arab traders for further trans

Every one of these easy-to-make, 3-D keepsakes has a professional finish enhanced by captivating ribbons, beads, feathers, glitter, shells, pressed flowers, and textured papers. Glamour Girl wears a p

Bivalves, such as clams and oysters, are species having two-valved shells. In the marine ecosystem these species play a unique and essential role. This book examines the ecology of bivalves from an ec

At the age of 6, I discovered a jar of brightly colored shells under my grandmother's kitchen sink. When I inquired where they had come from, she did not answer. Instead, she told me in broken English

What a Waste! answers the question: when we throw something away, where is ?away”? Ever since cave people cracked open seafood shells for dinner, humans have produced garbage, and we’ve had to figure out what to do with it. What a Waste! explores the history of garbage from earliest times to today, covering subjects including dumps, human waste, water pollution, ?problem” garbage, and modern ?throwaway” culture. From islands made out of 5,000-year-old garbage in the Florida Everglades and sophisticated waste-disposal systems in ancient Pakistan to ?fatbergs” the size of a city bus in sewers today, What a Waste! delves into the fascinating, weird, and often disgusting world of garbage, and shows why it’s a growing problem. Creative solutions are showcased, like Repair Cafés to fix broken items, grocery stores that specialize in ?imperfect” fruits and vegetables, and filtration systems in Kenya made from discarded water bottles. With an inviting presentation including hand-lettering and