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Machinery’s Handbook

Machinery's Handbook has served as the principal reference work in metalworking, design and manufacturing facilities, and in technical schools and colleges throughout the world, for more than 90 years of continuous publication. Throughout this period, the intention of the Handbook editors has always been to create a comprehensive and practical tool, combining the most basic and essential aspects of sophisticated manufacturing practice. A tool to be used in much the same way that other tools are used, to make and repair products of high quality, at the lowest cost, and in the shortest time possible. The essential basics, material that is of proven and everlasting worth, must always be included if the Handbook is to continue to provide for the needs of the manufacturing community. But, it remains a difficult task to select suitable material from the almost unlimited supply of data pertaining to the manufacturing and mechanical engineering fields, and to provide for the needs of design and production departments in all sizes of manufacturing plants and workshops, as well as those of job shops, the hobbyist, and students of trade and technical schools.

Как работает Google

Компания Google действительно руководствуется в первую очередь принципами. Однажды ночью мне приснился сон, больше похожий на мечту, и я проснулся с мыслью: «А что, если бы можно было загрузить Всемирную сеть целиком и просто сохранить ссылки?» Я схватил ручку и быстро записал детали, чтобы понять, было ли такое на самом деле возможно.

Исламская археологическая архитектура и археология Казахстана

Предлагаемая книга содержит проанализированные и обобщенные материалы по мусульманским памятникам археологической архитектуры и археологии Казахстана, которые появляются здесь вместе с утверждением ислама, мусульманской идеологии в обществе и государстве, в умах и душах людей.

Nuclear Energy

AT THE transition to the new millennium the future of nuclear energy looks brighter. Nuclear power plants worldwide have operated safely. Applications for extension of reactor operating licenses in the U.S. are in place and construction is continuing abroad. Uses of isotopes and radiation in applications to medicine, research, and industry continue to assure human benefit. Research and development are active in the areas of controlled fusion, accelerator uses, isotope separation, space exploration, and excess weapons material disposition.

Irrigatsiya eroziyasiga chalingan tipik bo‘z tuproqlardan yuqori don hosili olish texnologiyasi

Tadqiqotlar maqsadi va vazifalari: Irrigatsiya eroziyasiga uchragan yerlarda kuzgi bug‘doydan yuqori va sifatli don hosili yaratishda tuproqqa ishlov berish va sug‘orish usullari, maqbul o‘g‘it me’yorlari hamda ko‘chat qalinligini belgilash, shu yo‘l bilan eroziya jarayonlariga qarshi kurash chora-tadbirlarini ishlab chiqish.

Nuclear and Particle Physics

It is common practice to teach nuclear physics and particle physics together in an introductory course and it is for such a course that this book has been written. The material is presented so that different selections can be made for a short course of about 25–30 lectures depending on the lecturer’s preferences and the students’ backgrounds. On the latter, students should have taken a first course in quantum physics, covering the traditional topics in non-relativistic quantum mechanics and atomic physics. A few lectures on relativistic kinematics would also be useful, but this is not essential as the necessary background is given in appendix B and is only used in a few places in the book. I have not tried to be rigorous, or present proofs of all the statements in the text. Rather, I have taken the view that it is more important that students see an overview of the subject which for many – possibly the majority – will be the only time they study nuclear and particle physics. For future specialists, the details will form part of more advanced courses. Nevertheless, space restrictions have still meant that it has been necessary to make a choice of topics covered and doubtless other, equally valid, choices could have been made. This is particularly true in Chapter 8, which deals with applications of nuclear physics, where I have chosen just three major areas to discuss. Nuclear and particle physics have been, and still are, very important parts of the entire subject of physics and its practitioners have won an impressive number of Nobel Prizes. For historical interest, I have noted in the footnotes many of the awards for work related to the field.

Проблемы преподавания русской литературы.

В пособии освещены проблемы преподавания русской литературы в национальной школе в зависимости от подготовленности учащихся, уровня и характера их двуязычная.

Notes on Quantum Mechanics

The following notes introduce Quantum Mechanics at an advanced level addressing students of Physics, Mathematics, Chemistry and Electrical Engineering. The aim is to put mathematical concepts and techniques like the path integral, algebraic techniques, Lie algebras and representation theory at the readers disposal. For this purpose we attempt to motivate the various physical and mathematical concepts as well as provide detailed derivations and complete sample calculations. We have made every effort to include in the derivations all assumptions and all mathematical steps implied, avoiding omission of supposedly ‘trivial’ information. Much of the author’s writing effort went into a web of cross references accompanying the mathematical derivations such that the intelligent and diligent reader should be able to follow the text with relative ease, in particular, also when mathematically difficult material is presented. In fact, the author’s driving force has been his desire to pave the reader’s way into territories unchartered previously in most introductory textbooks, since few practitioners feel obliged to ease access to their field. Also the author embraced enthusiastically the potential of the TEX typesetting language to enhance the presentation of equations as to make the logical pattern behind the mathematics as transparent as possible. Any suggestion to improve the text in the respects mentioned are most welcome. It is obvious, that even though these notes attempt to serve the reader as much as was possible for the author, the main effort to follow the text and to master the material is left to the reader

Nonlinear Physics with Mathematica for Scientists and Engineers

This text presents an introductory survey of the basic concepts and applied mathematical methods of nonlinear science as well as an introduction to some simple related nonlinear experimental activities. Students in engineering, phys- ics, chemistry, mathematics, computing science, and biology should be able to successfully use this book. In an effort to provide the reader with a cutting edge approach to one of the most dynamic, often subtle, complex, and still rapidly evolving, areas of modern research-nonlinear physics-we have made extensive use of the symbolic, numeric, and plotting capabilities of a powerful computer algebra software system applied to examples from these disciplines.

Археология Центральной Азии:архивные материалы Том II

Основная цель проекта заключается в публикации рабочих материалов, научных отчетов по исследованию памятников археологии Центральной Азии, которые хранятся в архивах Кыргызстана, России и Узбекистана, но в силу различных причин в свое время не были опубликованы.

МАҲАЛЛИЙЛАШТИРИЛГАН AMARANTHUS ЎСИМЛИГИ УРУҒЛАРИНИ ҚАЙТА ИШЛАШ МАҲСУЛОТЛАРИНИНГ КИМЁВИЙ ТАРКИБИ ВА УЛАР АСОСИДА БИОЛОГИК ФАОЛ ҚЎШИМЧАЛАР ЯРАТИШ

Дунёда сўнгги йилларда биоорганик кимё ва биотехнология фанларининг ривожланиши кўп жиҳатдан ўсимликларнинг кимёвий таркибларини тадқиқ қилиш, индивидуал моддаларни ажратиб олиш, тузилиши ва биологик фаоллигини аниқлаш ҳамда уларни амалиётга тадбиқ этиш бўйича кўплаб тадқиқотлар амалга оширилмоқда. Тиббиёт амалиётида қўлланилаётган доривор воситаларининг асосий қисми ўсимликлардан олинади. Чунки, ўсимликлардан ажратиб олинган биологик фаол моддалар, синтетик усулда олинган дори воситаларига нисбатан организм учун зарарли таъсири кам, ўзлаштирилиши осон ҳисобланади.

NONLINEAR CONTINUUM MECHANICS FOR FINITE ELEMENT ANALYSIS

A fundamental aspect of engineering is the desire to design artifacts that exploit materials to a maximum in terms of performance under working conditions and efficiency of manufacture. Such an activity demands an increasing understanding of the behavior of the artifact in its working environment together with an understanding of the mechanical processes occuring during manufacture.

Маҳаллий хомашёлар асосида самарали олигомер коррозия ингибиторлари олиш технологиясини ишлаб чиқиш ва синфлаш

Жаҳонда кимё ва нефт-газни қайта ишлаш саноатини жадал ривожлантириш даврида металлни кайта ишлаш ускуналари ва конструкцияларини ҳимоя қилиш учун янги юкори самарали коррозия ингибиторларини ишлаб чикиш бўйича илмий изланишлар олиб борилмоқда. Бу борада янги авлод органик коррозия ингибиторларини ишлаб чиқариш йўналишида маълум натижаларга эришилди, жумладан махаллий бозорни импорт ўрнини босувчи кимёвий маҳсулотлар билан таъминлаш соҳасида кенг кўламли ишлар амалга оширилмокда, шунингдек маҳсулотларни божхона экпертизасидан ўтказиш учун коррозия ингибиторларини идентификация килиш, синфлаш ва янги товар кодлари киритишга алоҳида эътибор берилмокда.

Newtonian Physics

We Americans assume that our economic system will always scamper to provide us with the products we want. Special orders don’t upset us! I want my MTV! The truth is more complicated, especially in our education system, which is paid for by the students but controlled by the professoriate. Witness the perverse success of the bloated science textbook. The newspapers continue to compare our system unfavorably to Japanese and European education, where depth is emphasized over breadth, but we can’t seem to create a physics textbook that covers a manageable number of topics for a one-year course and gives honest explanations of everything it touches on.

New Developments in Quantum Field Theory

Quantum field theory is one of most central constructions in 20th century theoretical physics, and it continues to develop rapidly in many different directions. The aim of the workshop “New Developments in Quantum Field Theory”, which was held in Zakopane, Poland, June 14-20, 1997, was to capture a broad selection of the most recent advances in this field. The conference was sponsored by the Scientific and Environmental Affairs Division of NATO, as part of the Advanced Research Workshop series. This book contains the proceedings of that meeting. Major topics covered at the workshop include quantized theories of gravity, string theory, conformal field theory, cosmology, field theory approaches to critical phenomena and the renormalization group, matrix models, and field theory techniques applied to the theory of turbulence.

МАҲАЛЛИЙ ХОМАШЁЛАР АСОСИДА РУХ ХЛОРИД ОЛИШ ТЕХНОЛОГИЯСИНИ ЯРАТИШ

Ҳозирги вактда жаҳонда чиқиндисиз технологияларни жорий этиб, таркибида рух бўлган хомашёлардан тўлиқ фойдаланган ҳолда юқори навли рух ишлаб чикаришга катта эътибор қаратилмоқда. Дунёда рух ишлаб чиқаришнинг умумий ҳажми йилига 8 млн тоннани ташкил этади. Бу борада рух бирикмалари, жумладан рух хлориди алоҳида ўрин тутади. Рух хлориди антисептик сифатида мато, картонларни шимдиришда, шпал, тиш цементи компоненти, галваник батарейкаларда, пайвандлаш ишларининг сифатини оширишда кенг қўлланилиши билан муҳим амалий аҳамиятга эга.