Dong Zhang Libri

To the West, China may appear an unstoppable economic unity, a single high-performing whole, but for the inhabitants of this vast, complex, and contradictory nation, it is the cities that hold the secret to such economic success. From the affluent, Westernized Hong Kong to the ice-cold Harbin in the north, from the Islamic quarters of Xi'an to the manufacturing powerhouse of Guangzhou--China's cities thrum with promise and aspiration, playing host to the myriad hopes, frustrations, and tensions that define China today. The stories in this anthology offer snapshots of 10 such cities, taking in as many different types of inhabitant. Here we meet the lowly Beijing mechanic lovingly piecing together his first car from scrap metal, somnambulant commuters at a Nanjing bus stop refusing to acknowledge the presence of a dead body just feet away, or Shenyang intellectuals conducting a letter-writing campaign on the moral welfare of their city. The challenges depicted in these stories are uniquely Chinese, but the energy and ingenuity with which their authors approach them is something readers everywhere can marvel at. Featuring stories from locations including Beijing, Chengdu, Guangzhou, Harbin, Hong Kong, Nanjing, Shanghai, Shenyang, Wuhan, and Xi'an, the collection contains work from authors Jie Chen, Han Dong, Diao Dou, Cau Kou, Ding Liying, Ho Sin Tung, Yi Sha, Zhu Wen, Xu Zechen, and Zhang Zhihao.

Exploring the physics of galactic winds, this book delves into their vital role in galaxy formation and evolution, influencing star formation and the intergalactic medium. It examines various theoretical mechanisms, including supernovae explosions and radiation pressure from starlight, while highlighting the gaps in understanding when comparing theory with observation. Through a detailed discussion of supernova-driven and radiation pressure-driven models, the author aims to bridge the divide between theoretical explorations and empirical data.

Exploring the nature of gamma-ray bursts (GRBs), this thesis examines hyperaccreting neutron-star disks as potential central engines. It analyzes the structure and neutrino emissions of these disks, distinguishing between inner and outer regions. The neutron-star disks demonstrate more efficient cooling and greater neutrino luminosity compared to black hole disks. Additionally, the influence of a global magnetic field on these disks is investigated. The work includes a comprehensive review of GRB progenitors and central engines, providing insights into the phenomenon.