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Selective encryption exploits the relationship between encryption and compression to reduce encryption requirements, saving in complexity and facilitating new system functionality. Selective encryption of MPEG video streams has been proposed in a number of variations, yet has seen little application to date. Here we focus on high encryption savings,(More)
The aim of this study was to investigate if quinine plus antidepressant drugs (ADS) leads to an additive effect in the forced swimming test. Quinine (0.125, 0.5 mg/kg) and ADS (subactive doses) were given IP 45 and 30 min, respectively, before the test. When combined with QUIN, all drugs that act via inhibition of 5-HT uptake (imipramine, amitriptyline,(More)
With the development of active compensation for electrified railway load, it is necessary to analyze the configuration of active compensation. The requirements of electrified railway loads to the configuration of active compensation are discussed. An identification process for all active compensation topologies is presented. The optimized topologies for 25(More)
Electrified railway traction loads present large single phase loads to the supply system. Most of traction transformer use Y,d11 connection in china. Typically zero sequence components are removed using a phase to phase transformer connection, however a large negative sequence component remains. With the developing of high speed and heavy load of the train,(More)
With proposing active compensation, it is necessary to reduce the active part rating of active compensation. Two types of active compensation and their active part rating are presented and analyzed. Four hybrid active compensations for electrification railway are formulated after analyzing the topology of active compensation. Active part rating formulas of(More)
The pharmacokinetics of moracizine (Mor) and moracizine sulfoxide (Mor-SO) determined by reversed phase HPLC was reported. The data in 6 volunteers after a single oral dose (600 mg) showed an one-compartment open model. The peak concentration in plasma (2.1 +/- 0.4 micrograms.ml-1) of Mor reached within 1-2 h. The Mor-SO concentration in plasma was much(More)
As a functional type of writing style, English for science and technology is developed on the basis of the General English. This paper is to analyze the stylistic features of English for science and technology— The Science of Mechanics in four aspects: graphlogical level, lexical level, and syntactical/grammatical level.