重积分计算方法的一个注记

三重积分与三次积分的意义是不相同的。但是在一定条件下三重积分可以转化为三次累次积分来计算,其公式为:■     

上市公司的利润操纵及其治理

分析了上市公司利润操纵的可能性，动机及其手段，提出了治理利润操纵的几点措施。     

1.30μmDFB激光器组件的设计和制做及其工作原理

本文自行设计和制作了１．３０μｍＤＦＢ激光器组件的讨论了光隔离和光耦合原理。由于采用的激光器－光隔离器－光纤的一体化结构，大大增加了该组件的可用性。在实验中得到高达５５％的耦合效率。     

热处理工艺对冲击曲线的影响

通过ＳＡ５１５Ｇｒ．７０钢的不同温度正火和１３ＭｎＮｉＭｏＮｂＲ钢正火不同温度回火试样的示波冲击试验，研究了不同热处理工艺对冲击曲线的影响。     

加速国内电弧炉工艺技术的发展

提出以紧凑式电炉流程模式对国内电炉钢厂进行改造，以及加强大型电炉冶炼工艺技术研究的建议。     

新器件条件下对行输出级电路计算公式的修正与补充(Ⅵ)

当彩色显示器使用初级线圈电感量L_P较小的新逆程变压器时,流过饱和导通行输出管的集电极电流I_(CP),不但包括偏转线圈L_Y中的正向锯齿波电流I_(YCP),还有不能忽略的FBT初级线圈中的正向锯齿电流I_(FCP),即CGA卡时峰值电流I_(CP)(6.1A)=I_(YCP)(3.9A)+I_(FCP)(2.2A)。因此有必要对行输出级电路的电流计算公式作相应的修正和补充。     

催化重整装置的几点设计改进

以一套500kt/a规模的催化重整装置的设计为例进行分析和讨论，提出对今后催化重整装置设计的几点改进建议，包括原料的加氢预处理流程，提纯重整产氢，优化预分馏塔及稳定塔的塔盘层数，选择合适的预加氢进料换热器及甲苯塔、二甲苯塔的加压操作等。     

Hydroxychloroquine reverses thrombogenic properties of antiphospholipid antibodies in mice

BACKGROUND: Previous studies have demonstrated that human monoclonal and polyclonal anticardiolipin antibodies have thrombogenic properties in vivo. Using such a model in which these antibodies have been shown to increase both the size of an induced thrombus and the duration of time in which such a clot lasts, we investigated whether hydroxychloroquine alters the dynamics of such thrombus formation. METHODS AND RESULTS: Three groups of nine mice were injected with purified immunoglobulin G (IgG) from a patient with the antiphospholipid syndrome (IgG-APS) and then fed with hydroxychloroquine at various doses (100, 6, and 3 mg/kg body wt). Three control groups of mice were also studied, including mice injected with IgG-APS and then fed with placebo, as well as two other groups injected with IgG from normal human serum and fed either hydroxychloroquine or placebo. A standardized thrombogenic injury was subsequently induced in the femoral vein of each mouse and the area (size) of thrombus measured as well as the total period of time that thrombus was present. Mice treated with hydroxychloroquine and IgG-APS showed significantly smaller thrombi that persisted for a shorter period of time compared with animals treated with IgG-APS and placebo. CONCLUSIONS: Hydroxychloroquine significantly diminished both thrombus size and total time of thrombus formation in mice previously injected with IgG-APS.     

超低硫燃料柴油的润滑性研究与性能研究

研究提出了超低硫燃料暂定战术技术指标，并规定了其润滑性要求。通过对基础油生产工艺研究、柴油润滑性添加剂研究及配方性能评定，成功研制了一种环保型超低硫燃料，满足外燃发动机（燃烧室高温高压）的使用要求。研制产品具有馏分窄、闪点高、氧化安定性好、低温性能优异、硫含量超低、润滑性能好等特点。燃料的低硫化是燃料发展的必然趋势。在我国开展低硫或超低硫环保型燃料研制，同时开展燃料润滑性添加剂的研制，具有重要意义。