AC operation with multiple full cycles has been successfully performed on the superconducting tokamak HT-7. In the experiment, it was discovered that the saturation of the transformer magnetic flux with DEF, a signal ...AC operation with multiple full cycles has been successfully performed on the superconducting tokamak HT-7. In the experiment, it was discovered that the saturation of the transformer magnetic flux with DEF, a signal name, was one of key aspects that affected the AC operation. The conditions of DEF were examined through the DEF feedback control system. By controlling the working patterns of the subsystems, namely the poloidal field control system and density control system, it was guaranteed that DEF would remain in the non-saturated status.展开更多
美国大学传播系的W·约瑟夫·坎贝尔教授在其2001年出版的专著Yellow Journalism:Puncturing the Myths,Defining the Legacies中,发表了大量为黄色新闻正名的观点。本文旨在介绍其中的重要观点,重新探讨黄色新闻的发展之源,并...美国大学传播系的W·约瑟夫·坎贝尔教授在其2001年出版的专著Yellow Journalism:Puncturing the Myths,Defining the Legacies中,发表了大量为黄色新闻正名的观点。本文旨在介绍其中的重要观点,重新探讨黄色新闻的发展之源,并结合今天的新闻实践活动,重新认识这场发源于美国却最终波及全球的新闻思潮。展开更多
基金the Meg-science Engineering of the Chinese Academy of Sciences(No.19981303)
文摘AC operation with multiple full cycles has been successfully performed on the superconducting tokamak HT-7. In the experiment, it was discovered that the saturation of the transformer magnetic flux with DEF, a signal name, was one of key aspects that affected the AC operation. The conditions of DEF were examined through the DEF feedback control system. By controlling the working patterns of the subsystems, namely the poloidal field control system and density control system, it was guaranteed that DEF would remain in the non-saturated status.
文摘美国大学传播系的W·约瑟夫·坎贝尔教授在其2001年出版的专著Yellow Journalism:Puncturing the Myths,Defining the Legacies中,发表了大量为黄色新闻正名的观点。本文旨在介绍其中的重要观点,重新探讨黄色新闻的发展之源,并结合今天的新闻实践活动,重新认识这场发源于美国却最终波及全球的新闻思潮。
