موضوعات
آموزش و پرورش
ادبیات و زبان
پزشکی، دندانپزشکی و داروسازی
تاریخ و جغرافیا
داستان و رمان
دیگر
دین و فلسفه
روانشناسی
ریاضیات و آمار
سلامتی، تناسب اندام و رژیم غذایی
شیمی و پلیمر
علوم اجتماعی و حقوق
علوم زیستی و بیوتکنولوژی
فیزیک و نجوم
کامپیوتر و اینترنت
کتابهای کودکان و داستان
کسب و کار و اقتصاد
کشاورزی و دامپزشکی و غذا
معماری
مهندسی و فناوری
هنر و تئاتر
محصولات
Facts about flying wings. A primer on all-wing aircraft - PDF
نویسندگان: خلاصه: For many years airplane designers have realized that by reducing parasite drag. that drag caused by the shape or form of the aireraft, its performance could be greatly inereased. Early steps in this direction were the changes from biplane to monoplane designs, the elimination of external struts and wires, the incorporation of retractable landing gears, ete. In spite of all these advaneements, the average conventional airplane of today has two to four times the drag that would be necessary if all its functions could be incorporated within its wing alone.
The radar game: Understanding stealth and aircraft survivability - Original PDF
نویسندگان: خلاصه: Precision weapons and rapid targeting information mean little if aircraft are unable to survive engagements with enemy air defenses. In addition to costing the lives of pilots, high levels of attrition can ultimately affect the outcome of the theater campaign. One of the most critical factors in determining the success of an air operation is survivability. In the last several decades, the term survivability has been associated with analysis of how low observables and electronic countermeasures can help aircraft carry out their missions in hostile airspace. Discussions of survivability immediately bring to mind stealth aircraft, radar jamming and debates about the latest SA-10 threats. Yet the quest for survivability is not a fad of the Cold War or the high-technology 1990s. Its roots, and its importance to combined arms operations, go back to the first use of military aircraft in World War I.
F-22 Raptor: America's Next Lethal War Machine - Original PDF
نویسندگان: خلاصه: Книга F-22 Raptor: America's Next Lethal War Machine F-22 Raptor: America's Next Lethal War Machine Книги Вооружение Автор: Steve Pace Год издания: 1999 Формат: pdf Издат.:McGraw-Hill Страниц: 145 Размер: 6.96 ISBN: 0-07-134271-0 Язык: Английский0 (голосов: 0) Оценка:The Lockheed Martin F-22 Raptor, about to be launched as America's premier Air Dominance Fighter, will replace the vaunted F-15C Eagle as the world's foremost fighter aircraft.Once operational
Introduction to Communication Electronic Warfare Systems (2nd Editon) - PDF
نویسندگان: خلاصه: The first edition contained a very brief section on noise in EW systemsessentially only an introduction to the topic. It is such an important issue with EW systems that we thought it would be beneficial to expand on the topic and so there are substantial additions pertaining to the sources and affects of external and internal noise on EW system performance.
Differences that matter - Original PDF
نویسندگان: خلاصه: Differences That Matter challenges existing ways of theorising the relationship between feminism and postmodernism which ask 'is or should feminism be modern or postmodern?' Sara Ahmed suggests that postmodernism has been allowed to dictate feminist debates and calls instead for feminist theorists to speak (back) to postmodernism, rather than simply speak on (their relationship to) it. Such a 'speaking back' involves a refusal to position postmodernism as a generalisable condition of the world and requires closer readings of what postmodernism is actually 'doing' in a variety of disciplinary contexts. Sara Ahmed hence examines constructions of postmodernism in relation to rights, ethics, subjectivity, authorship, meta-fiction and film.
EMPIRE, GLOBAL COLONIALITY AND AFRICAN SUBJECTIVITY - Original PDF
نویسندگان: خلاصه: Global imperial designs, which have been in place since conquest by western powers, did not suddenly evaporate after decolonization. Global coloniality as a leitmotif of the empire became the order of the day, with its invisible technologies of subjugation continuing to reproduce Africas subaltern position, a position characterized by perceived deficits ranging from a lack of civilization, a lack of writing and a lack of history to a lack of development, a lack of human rights and a lack of democracy. The authors sharply critical perspective reveals how this epistemology of alterity has kept Africa ensnared within colonial matrices of power, serving to justify external interventions in African affairs, including the interference with liberation struggles and disregard for African positions. Evaluating the quality of African responses and available options, the author opens up a new horizon that includes cognitive justice and new humanism.
Coloniality of the U-S///Mexico Border - Original PDF
نویسندگان: خلاصه: National borders are often taken for granted as normal and necessary for a peaceful and orderly global civil society. Roberto D. Hernández here advances a provocative argument that borders--and border violence--are geospatial manifestations of long histories of racialized and gendered colonial violence. In Coloniality of the U-S///Mexico Border, Hernández offers an exemplary case and lens for understanding what he terms the "epistemic and cartographic prison of modernity/coloniality." He adopts "coloniality of power" as a central analytical category and framework to consider multiple forms of real and symbolic violence (territorial, corporeal, cultural, and epistemic) and analyzes the varied responses by diverse actors, including local residents, government officials, and cultural producers. Based on more than twenty years of border activism in San Diego-Tijuana and El Paso-Ciudad Juárez, this book is an interdisciplinary examination that considers the 1984 McDonald's massacre, Minutemen vigilantism, border urbanism, the ongoing murder of women in Ciudad Juárez, and anti-border music. Hernández's approach is at once historical, ethnographic, and theoretically driven, yet it is grounded in analyses and debates that cut across political theory, border studies, and cultural studies. The volume concludes with a theoretical discussion of the future of violence at--and because of--national territorial borders, offering a call for epistemic and cartographic disobedience.
Microwave Receivers with Electronic Warfare Applications - Original PDF
نویسندگان: خلاصه: This book provides an introduction to microwave receivers and is written at a level appropriate for advanced undergraduates and first-year graduate students. The advance in microwave receiver development can be considered to be a result of device and logic circuit research. On the other hand, many of the new microwave devices and new ideas in microwave systems are developed as by-products of specific receiver designs. Therefore, this book is written primarily for both microwave receiver engineers and microwave device engineers. The book is divided into two parts, the general properties and the structures of microwave receivers. The properties of microwave receivers are discussed in Chapters 1-3 and in 12. The structures of different receivers are discussed in Chapters 4-11. The basic properties of microwave devices used in receivers are discussed where appropriate.آیا کتاب مورد نظر هنوز بر روی سایت قرار نگرفته است؟ جای نگرانی نیست! کافی است بر روی گزینه سفارش کتاب کلیک کرده و درخواست خود را ثبت کنید. در کمتر از چند ساعت کتاب شما را آماده خواهیم کرد.