平稳过程的条件概率密度非参数估计的L1－模强相合性

设｛Ｘ_Ｊ｝_（ｊ＝－∞）~∞是一个实值平稳随机过程，本文考虑了联合密度和给定过去状态的条件密度的递推估计，得到这些估计在过程｛Ｘｊ｝的各种混合条件下是Ｌ１－模强相合的。     

黄瓜子叶组培中器官发生的全息现象

以黄瓜子叶的１／２切块和１／３切块为外植体，用不同激素处理进进行芽器官诱导和发根培养。现黄瓜子叶切块在离体培养时同样存在全息现象，无论是芽的诱导是根的分化，其器官发生的部位以及器官发生的数量、频率的梯度变化都遵循生物全息律。     

Adaptive Excitation Control with L2 Disturbance Attenuation for Multi-Machine Power Systems

Generator excitation control plays an important role in improving the dynamic performance and stability of power systems. This paper is concerned with nonlinear decentralized adaptive excitation control for multi-machine power systems. Based on a recursive design method, an adaptive excitation control law with L2 disturbance attenuation is constructed. Furthermore, it is verified that the proposed control scheme possesses the property of decentralization and the robustness in the sense of L2-gain. As a consequence, transient stability of a multi-machine power system is guaranteed, regardless of system parameters variation and faults.     

Leishmania donovani in hamsters: Stimulation of non-specific resistance by some novel glycopeptides and impact on therapeutic efficacy

Summary Several glycopeptides structurally related to muramyl dipeptide (MDP) have been synthesized and evaluated for their ability to stimulate the non-specific resistance of hamsters againstL. donovani infection. These compounds have been named CDRI compounds. The synthetic procedure used for compounds 86/448 and 84/212 is described.MDP and its synthetic congeners were administered as immunostimulants at a prophylactic dose of 3 mg/kg at two weeks interval. The challenge infection (1×10⁷ amastigotes i.c./hamster) was given in between two doses of the compounds. One of the glycopeptides, CDRI comp. 86/448, has been found to be significantly more potent than MDP, effecting 92% inhibition of the challenge dose, whereas MDP produced only 26.5% inhibition. The effect of comp. 86/448 lasted until day 7 of challenge. The efficacy of sodium stibogluconate was appreciably improved in hamsters treated with comp. 86/448.     

黑麦Rubisco大亚基基因(rbc L)的克隆及其限制性内切酶图谱的构建

以小麦的rbc L为探针,分别与黑麦ctDNA EcoR I,BamH I,Hind III的酶切谱带进行Southern杂交。结果发现,E13(2.15 kb),B2(10.7 kb),H2(10.4 kb)均含有rbc L基因。用pUC9为载体克隆黑麦ctDNA的B2片段,Southern杂交后表明,得到的重组质粒含有rbc L基因,将其命名为pRCB2。设计了一种快速准确的分析方法,构建出pRCB2质粒DNA的限制性内切酶图谱,rbc L被定位在一个2.8 kb的区域内。     

广义逆与环的rc—正则性

引进了一类广义逆－Ｌ逆，进而利用Ｌ－逆刻画了环的ｒｃ－正则性。     

通过小鼠运动后血尿素变化规律观察中药的抗疲劳作用

给予小鼠不同运动负荷研究其血尿素变化规律，建立了负重（体重的５％）游泳４０ｍｉｎ的小鼠疲劳模型。分别用黄芪、沙棘提取液给小鼠灌胃１４ｄ，通过上述疲劳模型观察到实验组小鼠游泳后ＢＵＮ（血尿素氮）曲线比对照组及本组给药前显著降低。