In this paper we report the progress of research of the basic circuits developed for rubidium atomic fountain clock in the key laboratory of quantum optics of SIOM, including circuits for cold rubidium atoms tossing, circuits for TOF signal detection and microwave circuits.

The fundamental problems of TOF SIMS applications to the hydrocarbon generating study of source rocks, such as the techniques of sample preparation, the relationship between the abundance and the content of fragment ions, and the necessity of the high resolution of TOF SIMS were discussed.

A multi-channel pre-processing circuit for signals from temperature sensor;

R&D of Multi-signals Transmission Device for ETL-81 Power Carrier;

This article described the fundamental principle and practical significance of the digital signals processing in a nonmathematical way.

Application of Computer Network in Railway Signaling;

Design of Lightning Protection of Signaling and Telecommunication System in Qinghai-Tibet Railway;

This paper systematically describes and analyzes the structure of maintenance management system of communication and signaling system of JR Eastern Japan Express Rail Transit.

The features and the development of the train signalling and control system based on communication , as well as its influence on the railway transportation , are analyzed .