Development of a mercury electromagnetic centrifugal pump for the SNAP-8 refractory boiler development program

An electromagnetic pump, in which pressure is developed in mercury because of the interaction of the magnetic field and current which flows as a result of the voltage induced in the mercury contained in the pump duct, was developed for the SNAP-8 refractory boiler test facility. Pump performance results are presented for ten duct configurations and two stator sizes. These test results were used to design and fabricate a pump which met the SNAP-8 criteria of 530 psi developed pressure at 12,500 lb/hr. The pump operated continuously for over 13,000 hours without failure or performance degradation. Included in this report are descriptions of the experimental equipment, measurement techniques, all experimental data, and an analysis of the electrical losses in the pump

On the Application of Situational Crime Prevention Theory to the Practice of Comprehensive Administration of Social Security

社会治安综合治理经过十几年的发展已成为具有中国特色的犯罪治理模式。但在实践中要如何突破“口号味浓、操作性难”的被动局面，是社会治安综合治理工作的当务之急。情境预防是近年来世界范围内犯罪预防的主流理论之一，其在西方国家取得的显著成效，使之与社会预防、司法预防鼎足而立。社会治安综合治理从宏观的角度入手，将预防措施逐步演绎至微观局面、大局观强；情境预防犯罪理论从微观的预防实践入手，将预防措施归纳成指导性的宏观原则、操作性强。笔者认为，在我国社会治安综合治理过程中借鉴情境预防犯罪理论，具有其特别的应用价值和现实意义。本文从探求情境预防犯罪理论在我国社会治安综合治理过程中的实践应用入手，应用大量实证事例...After years of development, the comprehensive administration of social security has become a crime control model with Chinese characteristics. However, as it is packed with slogans and difficult to operate, it is a priority to break though that passive situation in practice. Situational crime prevention is one of the mainstream theories on crime prevention throughout the world in recent years. Wit...学位：法律硕士院系专业：法学院法律系_法律硕士(JM)学号：X200512018