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MACHINE ANALYSIS WITH COMPUTER APPLICATIONS FOR MECHANICAL ENGINEERS

The material presented in this book evolved from supplementary material prepared for teaching a course in machine analysis. One major thing I have learned from teaching Machine Analysis, and also from discussing with others who have taught the course, is that students do not understand the purpose of machine analysis and lack understanding of the big picture. This book focuses on learning the big picture with the use of computer methods. As an example, students typically learn kinematic analysis of linkage systems by calculating velocity and acceleration of a linkage mechanism in one “freeze frame” position. As a result, the students get answers in the form of vectors, which have no real meaning to them because it is not a complete solution. In order to have a complete understanding of the concept, students need to calculate velocity and acceleration for one complete cycle of motion of the mechanism. Although it is far too tedious to calculate by hand, students can develop computer code that will analyze the mechanism for its complete cycle of motion. From this broad analysis, students can now plot acceleration curves for the motion of the mechanisms and learn in a more visual manner. Because most students are visual learners, this text focuses on teaching the material in this more complete and visual fashion. Students will be taught how to build computer code throughout the book, and in the end they will be able to develop a tool to do a much more thorough analysis of mechanisms. This approach will make the learning process more effective, and it will also serve as a useful tool to use as practicing engineers. Some of the solution methods discussed in this book stem from graphical methods that may seem antiquated. Though some of these methods may be outdated, they present the material in a very visual way to help students understand the more complex analytical solution methods.

Euclidean Geometry in Mathematical Olympiads

This book is an outgrowth of five years of participating in mathematical olympiads, where geometry flourishes in great vigor. The ideas, techniques, and proofs come from countless resources—lectures at MOP∗ resources found online, discussions on the Art of Problem Solving site, or even just late-night chats with friends. The problems are taken from contests around the world, many of which I personally solved during the contest, and even a couple of which are my own creations. As I have learned from these olympiads, mathematical learning is not passive—the only way to learn mathematics is by doing. Hence this book is centered heavily around solving problems, making it especially suitable for students preparing for national or international olympiads. Each chapter contains both examples and practice problems, ranging from easy exercises to true challenges.

First Steps for Math Olympians

In the last year of the second millennium, the American High School Mathematics Examination, commonly known as the AHSME, celebrated its fiftieth year. It began in 1950 as a local exam in the New York City area, but within its first decade had spread to most of the states and provinces in North America, and was being administered to over 150,000 students. A third generation of students is now taking the competitions. The examination has expanded and developed over the years in a number of ways. Initially it was a 50-question test in three parts. Part I consisted of 15 relatively routine computational problems; Part II contained 20 problems that required a thorough knowledge of high school mathematics, and perhaps some ingenuity; those in Part III were the most difficult, although some of these seem, based on the latter problems on the modern examination, relatively straightforward. The points awarded for success increased with the parts, and totaled 150.

UNIYERSUM ТЕХНИЧЕСКИЕ НAУКN

Приведены результаты исследования выбора состава полуфункциональной загустки на основе натриевой соли карбоксиметилкрахмала (Na-КМК), гидролизованной акриловой эмульсии (ГАЭ) и узхитана для активного красителя и других вспомогательных веществ для печатания текстильных материалов типа хлопок шёлк. Пока- зано что, колористические свойства набивных тканей, получаемой после печатания новой загусткой, значительно улучшается с использованием загустителя на основе альгината и DGT.

Тошкент вилояти шароитида беда етиштириш агротехникаси

Авваллари олдин республикамизда кам ҳосилли маҳаллий навлар экилиб келинган бўлса, ҳозирги вақтда бедачилик соҳасида илмий тадқиқотлар олиб бориш натижасида махаллий навларга нисбатан беданинг бир қатор юқори ҳосилли, оқсилга бой, ҳар бир вилоят шароитига мослашган навлари яратилган. Жумладан, Қорақалпоқ-1, Қорақалпоқ-15, Қорақалпок-41 навларидан ташқари, ЎзГСУИТИ беда селекцияси ва уруғчилиги лабораторияси томонидан яратилган, Ўзбекистоннинг деярли барча вилоятлари учун мос бўлган Тошкент3192, Тошкент-1, Тошкент-1728, Тошкент-2009 навлари экилиб келинмокда, Хоразм вилоятида Хива ва мамлакатнинг лалми ерлари учун Аридная ва Бойгул навлари жорий этилган.

Хитой баргли карамни етиштириш ва унинг иқтисодий самарадорлиги

Сабзавотчилик - ўсимликшуносликнинг ажралмас таркибий қисмидир. Шунинг учун сабзавот экинларини ҳамма вақт ҳам бошқа экинлардан ажратиб бўлмайди. Чунки, карам, картошка, сабзи, қовоқ, лавлаги, тарвуз, маккажўхори кабиларни сабзавот экини сифатида озиқ -овқатга, чорва моллари учун ем - хашак ва техник мақсадларда ишлатиш учун хом ашё сифатида етиштириш мумкин.

Ғўзанинг “Бухоро-102” навининг ҳосилдорлигига ўғитлаш меъёрининг таъсири

Минерал ўғитларнинг қўлланишида меъёрларини, вақтини тўғри белгилаш ҳам мўл-кўл ҳосил олишнинг асоси ҳисобланади. Ялпи пахта ҳосилини янада кўпайтириш асосан экин майдонлари структурасини такомиллаштириш, минерал ўғитлардан самарали фойдаланиш, агротехникани яхшилаш негизида ҳосилдорликни ошириш йўли билан амалга оширилади.

Соя навларини етиштириш ва уруғига йиғиб олингандан кейинги ишлов бериш технологияси

Ўзбекистонда соянинг навлари яратилган, районлаштирилган, аммо етиштириш теҳнологияси тўла ишлаб чиқилмаган. Соя ўсимлигини ер юзининг ҳамма минтақаларида кенг тарқалиши унинг сифатли дони ва кўкати билан боғлиқдир. Етиштириш учун кўп маблағ талаб қилинмайди, соя маҳсулоти озиқ-овқатда, ем-хашак, техника ва тиббиётда кенг кўламда қўлланилади.

Мутахассиснинг ижодий фаолиятини бошқаришда психологиянинг роли

Битирув малакавий ишнинг мақсади – касб-ҳунар коллежи ўқувчиларида касбий фаолият ва мутахассиснинг ижодий фаолиятини бошқаришда бугунги кундаги психологик билимларнинг ролини илмий-назарий жиҳатдан асослаш.

HIND ADABIYOTI

Hind adabiyoti qadimiy adabiyotlar sirasiga kirib uning tarixi eramizdan oldingi to‘rtinchi ming yilliklardan boshlanadi. O‘quv qo‘llanmani tayyorlashda muallif hind adabiyotshunoslari, rus va o‘zbek sharqshunoslarining ilmiy izlanishlari, ilmiy asar va maqolalariga tayangan. Ushbu qo‘llanma yordamida talaba asosan hind adabiyotining eng dastlabki yozma yodgorliklari, qadimda shakllangan adabiyotning turli yo‘nalishlari, shoir va yozuvchilari, hamda hind diniy-falsafiy qarashlarining adabiyotga ta’siri kabi masalalar bo‘yicha tushuncha va mahsus ilm hosil qiladi.

Local Cohomology

This Second Edition of a successful graduate text provides a careful and detailed algebraic introduction to Grothendieck’s local cohomology theory, including in multi-graded situations, and provides many illustrations of the theory in commutative algebra and in the geometry of quasi-affine and quasi-projective varieties. Topics covered include Serre’s Affineness Criterion, the Lichtenbaum–Hartshorne Vanishing Theorem, Grothendieck’s Finiteness Theorem and Faltings’ Annihilator Theorem, local duality and canonical modules, the Fulton–Hansen Connectedness Theorem for projective varieties, and connections between local cohomology and both reductions of ideals and sheaf cohomology. The book is designed for graduate students who have some experience of basic commutative algebra and homological algebra, and also for experts in commutative algebra and algebraic geometry. Over 300 exercises are interspersed among the text; these range in difficulty from routine to challenging, and hints are provided for some of the more difficult ones.

Turli tuproq-gidrogeologik sharoitlarda makkajo‘xorini sug‘orish rejimi

Men takroriy ekin sifatida yetishtirilayotgan makkajo‘xorini sug‘orish rejimini o‘rganish bo‘yicha qator tadqiqotchilar tomonidan olib borilgan maxsus izlanishlar natijalarini ilmiy manbalardan o‘rganish, ularni umumlashtirish va tahlil etishni o‘z oldimga maqsad qilib qo‘ydim va ish mazmunidan kelib chiqqan holda tegishli xulosa va takliflar qildim.

LINEAR ALGEBRA AND LEARNING FROM DATA

This book aims to explain the mathematics on which data science depends : Linear algebra, optimization, probability and statistics. The weights in the learning function go into matrices. Those weights are optimized by "stochastic gradient descent". That word stochastic ( = random) is a signal that success is governed by probability not certainty. The law of large numbers extends to the law of large functions : If the architecture is well designed and the parameters are well computed, there is a high probability of success. Please note that this is not a book about computing, or coding, or software. Many books do those parts well. One of our favorites is Hands-On Machine Learning (2017) by Aun!lien Geron (published by O'Reilly). And online help, from Tensorftow and Keras and Math Works and Caffe and many more, is an important contribution to data science.

БАДОЙИЪУ-С-САНОЙИЪ

Моҳир шоиру аржуманд донишманд, комил фозилу беназир амир Алишер Навоийнинг илмию маънавий, молиявию ташкилий ёрдами билан вужудга келган университет ҳамда махсус илмий ва амалий институтлар ул азизнинг тинимсиз меҳнатию олий ҳиммати туфайли жаҳоннинг илму фан ва маданият хазиналарига салмоқли ҳисса қўшди. Жумладан Навоий академияси инсоният ихтиёрига кўплаб илмий асарлар тақдим қилди. Шулардан бири Атоуллоҳ Маҳмуд Ҳусайнийнинг бадиъ илмига, яъни нутқдаги бадиий воситаларга бағишланган «Бадойиъу-с- санойиъ» (санъат янгиликлари) деган рисоласидир.

Linear Algebra

I dedicate this book to friends and colleagues, past and present, at Bradley University. Without their friendship, counsel, and support over these past 30 years, my teaching experience wouldn’t have been quite so special and my writing opportunities wouldn’t have been quite the same. It’s been an interesting journey, and I thank all who have made it so

«KIMYOI SAODAT

Sharq falsafasi va uning tarmoqlari bo'lgan tavhid, kalom, tafsir, hadis, ruhiy va tabiiy fanlar o'rtasidagi ixtiloflarni bartaraf etib, buning o'zaro uyg'un rivojlanish yo'llarini kashf etgan, fan va din bir-biriga dushman emas, do'st ekanligini dalillab bergan atoqli faylasuf Muhammad Abu Homid G'azzoliy asarlari jahondagi juda ko'p donishmand, faylasuflarning e'tiborini jalb etib kelgan. G'azzoliy Kimyoi saodat da bunday hikoyani keltiradi: Bir quruh ko'rlar yo'lni ko'rmay, chetroqda ko'zalar turgan joydan o'ta boshladilar va «Kimdir yo'limizga to'siqlar qo'yibdi» deb shikoyat qiladilar. Aslida ular ko'rligi tufayli to'g'ri yo'ldan adashgan edilar. Darvoqe, Jaloliddin Rumiyning Masnaviyi ma'naviy asaridagi ko'pchilik hikoyatlar <<Ihyo dan: «Nafs (ruh) chavandozga, badan otga o'xshaydi. Chavandozning ko'rligi otning ko'rligidan zararlioqdir. Yana: Aql qalbga qo'shilsa fazilatga aylanadi. Aks holda aql-fazilat emas».