Following the failure of recent efforts by the United States to engage North Korea in denuclearization negotiations, the author proposed and tested an approach to negotiations, the portfolio method , that addresses the reasons for past failures.

—兰德公司 2020-10-26

The cover story highlights the value of invention, analyzing the economic and social impacts of winners of the Lemelson-MIT Prize. A second feature focuses on human rights abuses against ethnic Uyghurs in China and what we know from satellite images.

—兰德公司 2021-05-06

本文主要讨论了雷达信号盲分离问题。首先介绍了基于负熵最大化的FastICA算法,然后将该算法在相应的DSP平台上进行了实现,进而针对算法初步仿真中出现的问题,提出了一种引入DSPLib程序库的优化算法,经测试,优化后的算法在保证算法性能的前提下,速度有了很大的提高。

—知网 2018-04-22

Evaluates past policy changes surrounding national legalization of cannabis and identifies feasible policy responses for contemporary or anticipated issues.

—兰德公司 2020-06-16

本发明涉及一种液冷发射机系统,包括发射机系统的工作电路,其特征在于：所述工作电路的多路功放模块设置在散热板上,所述散热板上设有冷却管道。本发明通过采用液体冷却方式,可以极有效地解决整个系统及模块的散热难的问题,而且整机模块安装紧凑、集成度高,实现了数字电视发射机的高密度、高效率、低噪音。

—知网 2018-04-22

—标准 2019-12-18