Researches on the NOX emission characteristics of HT(Huangtai coal),LC(Laicheng)coal are carried out in different atmosphere.The results show that the NOX emiss
A discrete fuzzy sliding mode variable structure controller was studied and designed for a class of electro-hydraulic servo system by means of the combination o
目的:比较腹腔镜下单侧卵巢打孔术(ULOD)与腹腔镜下双侧卵巢打孔术(BLOD)对多囊卵巢综合征(PCOS)患者性激素水平、规律月经、妊娠结局、卵巢储备及术后盆腔粘连的影响。方法:算机检索Pubmed、EMbase、Web of Science、中国知网、万方数据库及维普数据库从建库至2018年9月15日比较多囊卵巢综合征卵巢打孔相关的随机对照试验(RCT),采用ReMan 5.3软件和Stata
目的:评价超声引导下甲状腺内注射糖皮质激素应用于亚急性甲状腺炎治疗的有效性及安全性。方法:检索PubMed、Embase、Web Of Science、The Cochrane Library,中国生物医学文献数据库、中国知网、万方数据库及维普数据库,收集已经公开发表的亚急性甲状腺炎的随机对照试验研究,按制定的纳入标准及排除标准对所搜集文献进行筛选及数据提取,运用RevMan5.3及Stata15