Recent Advance and Research on Transport Protocols for Computer Networks(Ⅰ) —— Mechanism Revisions and Implementation Improvements on Traditional Protocols
The paper describes the recent advance in the research of polyphenylene sulfide blended fiber,and makes analysis on the effect on the properties of fiber from the structure and morphology of PPS/ETFE,PPS/PA,PPS/PET,PPS/PPSK,PPS/EBA blends in detail. Moreover,the future development of blends modification of PPS fiber was expected.
Objective: To introduce recent advance in the development of small molecule inhibitors of protein tyrosine phosphatase 1B(PTP-1B), mechanism of action and characteristics of PTP-1B inhibitors.
One major recent advance has been the identification of molecular and genetic prognostic factors that can be used in early-stage patients to identify those likely to rapidly progress.
A recent advance in understanding the "Brazil nuts phenomenon" together with insight into the relative motion of different-size particles in a lattice fluid makes this phenomenon amenable to an approach based on hydrodynamic concept.
According to the recent advance in application of Modern Control Theory in D. C. Speed regulating System, this paper by using Robust Control Theory presented a new design method of Robust Controller with feedforward Compensa- tor. Through a lot of experiments, it is showed that the new System not only obtained a good feature of steady and transient Characteristics(in the range 400~1450r. p. m when the full Load is applied(taken off), the transient speed down(rise): 10~20rev/sec; time of recupera...
The author report their surgical experince following percutaneous transluminal coronary angioplasty (PTCA) with a brief introduction about its recent advance.PTCA was attempted in a total number of 600 cases, among them 97 were classified as unsuccessful. Forty five patients were complicated by acute coronary occlusion. Coronary bypass surgery was performed in 72 patients, of which 38 required emergency bygass surgery, usually performed on unstable angina patients. In contrast to reports of othe...
A recent advance in plant experimental embryology is the induction of haploid plants via in vitro culture of unfertilized ovules.Using float culture method on liquid media,we have raised haploid as well as diploid embryoids in sunflower cultivars by ovule culture.The present investigation was aimed to know the origin and developmental processes of these embryoids.Young flowers 1—4 days before anthe- sis were dissected and ovules were inoculated on N6 medium supplemented with 0.5— 2 ppm MCPA and ...