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M113 American Armoured Personnel Carrier


M113: American Armoured Personnel Carrier
English | 2021 | ISBN: 1526789779 | 188 Pages | EPUB (True) | 57 MB
The M113 has become as much a recognizable part of the US military machine at war as the Bell UH-1 Iroquois and M16 assault rifle. Earning its stripes in the jungles and highlands of Vietnam, it became the most widely armored vehicle of the campaign. Such was its prowess that the Viet Cong gave it the nickname Green Dragon on account of its ability to go virtually anywhere.

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Luftwaffe Aces in the Battle of Britain


Luftwaffe Aces in the Battle of Britain
English | 2020 | ISBN: 1526754215 | 399 Pages | EPUB (True) | 26 MB
For the Luftwaffe, a number of its fighter pilots, many of whom had fought with the Legion Condor in Spain, had already gained their Experte, or ace, status in the Battle of France. However, many more would achieve that status in the hectic dogfights over southern England and the Channel during the Battle of Britain in the summer of 1940. A number would also be either killed or captured. Some of these men, individuals such as Adolf Galland, Werner Mölders, and Helmut Wick, who between them had claimed 147 aerial victories by October 31st1940, are well-known, but most are less so.

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Low-Altitude Economy


Low-Altitude Economy: A New Economic Structure Of New-quality Productive Forces
English | 2026 | ISBN: 9819823455 | 575 Pages | EPUB (True) | 55 MB
Through the integrated analytical framework "theory-technology-practice", Low-Altitude Economy provides a multifaceted examination of the industrialization of unmanned aerial vehicles (UAVs), electric vertical take-off and landing (eVTOL) aircraft, and related infrastructure. Key topics include policy planning, airworthiness certification, AI integration, and differentiated development models across regions such as East China, the Greater Bay Area, and China's Southwest provinces.

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Long-Haul Optical Fiber Communication Systems


Long-Haul Optical Fiber Communication Systems
English | 2026 | ISBN: 3032194717 | 171 Pages | PDF EPUB (True) | 48 MB
This textbook provides a comprehensive treatment of optical communication systems, one of the fundamental technologies in telecommunication networks, and the backbone of our communication and information society. Geared towards upper undergraduate and graduate students, this book explains key technologies and recent trends in long-haul optical communication systems. After a brief introduction, the authors present key technologies in optical fiber communication systems. They go on to discuss long-haul optical fiber transmission using regenerative repeaters or optical amplifier repeaters, dispersion managed optical fiber transmission considering fiber nonlinearity, high-capacity optical fiber transmission using wavelength division multiplexing, and high spectral efficiency transmission using digital coherent receivers, among others. The book includes homework problems and PowerPoint slides for easy integration into classroom use.