基于非线性度变换的NPID在SVC中的应用分析

分析静止无功补偿器(Static Var Compensator,SVC)控制系统的组成和补偿原理,将非线性度变换NPID控制方法引入SVC控制系统.仿真试验表明该方法在SVC应用中可以明显提高系统的响应速度,加速系统稳定.     

Prevalence of antibodies to Rickettsia conorii Ricketsia africae, Rickettsia typhi and Coxiella burnetii in Mauritania

A 24-year-old male developed cytogenetic relapse of chronic myeloid leukemia (CML) four years after allogeneic BMT. After a year of treatment with IFN-alpha, he achieved a partial cytogenetic response. Treatment with donor leukocyte infusions (DLI) was given (total dose 1 x 10(8) T lymphocytes/kg). Two months later, he developed acute GVHD (skin and liver), that improved with CsA and methylprednisolone and resulted in cytogenetic remission with complete donor chimerism. One month later he developed rhinocerebral mucormycosis and was successfully treated with surgical debridement and liposomal amphotericin B (total dose 12 g). This is the first case of mucormycosis described after DLI.     

Helicobacter pylori and upper digestive disease at the Main Hospital of Dakar. Study apropos of 105 consecutive endoscopies

Gastro-duodenal ulcer is a very frequent disease in Senegal and Helicobacter pylori (HP) being an ubiquitarian germ infects people living in developing countries in an over-early way and this most frequently. We have realized a prospective study dealing with 105 adult patients sent to hospital principal's endoscopy center. We were searching for HPs into three different methods which are as follows: using ordinary slats, clo-test, histological process. The results have confirmed the existence of a very high rate of infection due to HP, with among adults living in developing countries: 82% of our study. Likewise 95.8% of our ulcerous and erosive injuries at the bulb and 93.8% ulcerous and erosive gastric attacks were associated to HP infection. Those gastric and bulbar lesions were known to have followed a mild but chronic gastritis.     

论己酸菌代谢的影响因素

己酸菌在生长、繁殖过程中受环境影响较大,探索己酸菌在不同条件下的生长代谢,有利于掌握其生长习性,便于指导生产。主要影响因素有有机酸及其盐类、酒精含量和温度。