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Вопросы эксплуатации, строительства и экономики железных дорог

Определение числа, назначений пассажирских поездов и схематического графика их прокладки является одним из направлений, по которому рассматривается вопросы повышения уровня удобств для пассажиров и наименьше затраты народнохояйственных средств.

Деҳқончилик асослари

Деҳқончилик ва ўсимликшунослик дунёдаги кўпгина халқлар хўжалигининг етакчи тармоғи бўлиб хизмат қилади.

SCALE UP Teacher's Book Course 2

Congratulations for being a Teacher of B2 level students. IMease. remember that your students are always smart, unique, talented and have great mission in this world.

Understanding Solids

The publisher and the author make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of fitness for a particular purpose. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for every situation. In view of ongoing research, equipment modifications, changes in governmental regulations, and the constant flow of information relating to the use of experimental reagents, equipment, and devices, the reader is urged to review and evaluate the information provided in the package insert or instructions for each chemical, piece of equipment, reagent, or device for, among other things, any changes in the instructions or indication of usage and for added warnings and precautions. The fact that an organization or Website is referred to in this work as a citation and/or a potential source of further information does not mean that the author or the publisher endorses the information the organization or Website may provide or recommendations it may make. Further, readers should be aware that Internet Websites listed in this work may have changed or disappeared between when this work was written and when it is read. No warranty may be created or extended by any promotional statements for this work. Neither the publisher nor the author shall be liable for any damages arising herefrom

ВВЕДЕНИЕ В НАНОТЕХНОЛОГИЮ (ОБЩИЕ СВЕДЕНИЯ, ПОНЯТИЯ И ОПРЕДЕЛЕНИЯ)

Рассмотрены предмет нанотехнологии, отличие нанонауки от классической физики и квантовой физики, основные представления и описание наиболее известных наноразмерных структур, традиционные и нетрадиционные проблемы нанофизики и нанохимии. Приведены основ- ные характеристики наночастиц, определяющие их механические, элек- трофизические и иные свойства, а также влияющие на их применимость для решения технологических задач в машиностроении, химическом и электронном производстве. Описаны области применения наноразмер- ных структур и материалов, созданных с их применением.

НАНОМАТЕРИАЛЫ И НАНОТЕХНОЛОГИИ

Принято считать, что социально-экономический прогресс в XXI веке будет всецело определяться успехами нанотехнологии. Под нанотехнологией понимают умение специалистов производить «сборку» любых объектов при использовании в качестве исходных ресурсов отдельных атомов и молекул, а в качестве оборудования для сборки и разборки объектов использование са- моорганизующихся репликаторов, снабженных искусственным интеллектом [Nanotechnology-Revolutionary Opportunities and societal Implications/M.Roco, R. Tomellini, 3rd Joint EC-NSF Workshop on Nanotechnology 2002.]. По множественным прогнозам специалистов уже к 2010 г

Исследование и расчет современных мостовых конструкций

В работе показано, что величина коэффициента концентрации напряжений для отверстий заключенных н болтовых соединений при загруженных многократно повторными усилиями в значительной -степени зависит от износа соединения, который характеризуется снижением осевых напряжений в заклепках (болтах) и напряжений в прикрепляемом элементе

Theoretical Physics 9

Unfortunately, the real situation can seldom be caricatured in such a way that the resulting model is on the one hand still sufficiently realistic and on the other can be treated with mathematical rigour. Thus, one usually has to accept additional approximations in order to find solutions. A powerful technique in this connection has proven to be the Green’s function method, with its concept of quasi-particles. The abstract theory is discussed in Chap. 3 and then applied to numerous concrete problems in Chap. 4. Diagrammatic methods of solution are worked out in Chaps. 5 and 6. They should be included nowadays within the indispensable repertoire of every theoretician. A number of exercises (together with their explicit solutions) are also included in this volume and are in particular designed to help the student to acquire a facility for working with the formalism and applying it to concrete topics. The solutions given, however, should not tempt the reader to forbear making a serious effort to solve the problems independently. At the end of each major chapter, questions are included, which can be useful to test the knowledge gained by the reader and in preparing for examinations.

Моделирование тяжелых аварий на АЭС

пособии представлены основные подходы и физические принципы, применяемые при моделировании режимов с нарушениями нормальной эксплуатации, проектных и запроектных аварий на АЭС с водо-водяными реакторами. Для расчетного моделирования используются так называемые тяжелоаварийные коды. Процессы, протекающие в ходе постулируемой аварии на АЭС, отличаются необычайной сложностью и взаимосвязанностью, что делает их моделирование чрезвычайно затруднительным

Theoretical Physics 8

This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Исследование надежности погрузочно- разгрузочных и строительных материалов

Стандарты многих стран предусматривают экспериментальную проверку устойчивости погрузчиков на повторной платформе. Угол наклона платформы с установления на ней погрузчиком.

Theoretical Physics 7

This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Говорим по-американски

Цель этого курса – помочь вам овладеть разговорным английским. Только тот, кто уже пожил в Америке, осознал в полной мере всю сложность этой задачи. Начинающим подчас кажется, что было бы хорошо сначала научиться разговору, оставив все хитрости языка на потом.

Theoretical Physics 6

This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Расчет и надежность электронных устройств

Вопросы оценки качества радиоэлектронной аппаратуры по результатам контроля параметров случайной выборки изделий из готовой партии в процессе проведения приемо-сдаточных испытаний рассматриваются в статье «Сравнительная оценка эффективности различных методов контроля качества функциональных узлов радиоэлектронной аппаратуры

Maxsus fanlarni o'qitish metodikasi

Zamonaviy ta’lim tushunchasi. Ta’lim tizimi taraqqiyotining jahon tendensiyalari. Ta’lim sifatini ta’minlash maqsadida tizimni boshqarish tamoyillari. O‘zbekistonda ta’lim tizimi. “Maxsus fanlarni o‘qitish metodikasi” ning boshqa fanlar bilan aloqasi. Maxsus fanlarni o‘qitishning asosiy toifalari.