激光雷达中层大气遥感技术

介绍了中科院武汉物理与数学研究所瑞利激光雷达的技术特点，并从其对武汉地区中层大气密度和温度廓线探测的典型结果，给出了该激光雷达对中层大气主要参数的探测能力。     

Lie symmetries and conserved quantities of controllable nonholonomic dynamical systems

This paper concentrates on studying the Lie symmetries and conserved quantities of controllable nonholonomic dynamical systems. Based on the infinitesimal transformation, we establish the Lie symmetric determining equations and restrictive equations and give three definitions of Lie symmetries before the structure equations and conserved quantities of the Lie symmetries are obtained. Then we make a study of the inverse problems. Finally, an example is presented for illustrating the results.     

类氖锗X光激光双程放大实验研究

本文在神光装置上,进行了类氖锗X光激光双程放大实验研究.实验中使用了硅/钼多层膜X光平面反射镜.用平场光栅谱仪测量了X光激光的时间积分和时间分辨信号.实验证实了X光激光的双程放大.时间积分结果表明,双程放大为单程放大信号的5倍多;时间分辨结果表明,对多层镜的作用时间作修正后,双程放大信号的增强倍数还要大.在本实验条件下,多层镜的寿命约为400—700ps.     

Two Term Asymptotics of Counting Function for One Dimensional p-Laplace Operator with Mixed and Periodic Boundary-value Conditions

1 Main Results Let Ω(?) R be a non-empty open subset with finite Lebesgue measure |Ω|1 and boundary Г= σΩ. We can write Ωas the union of its connected components, i.e., Ω= ∪Ij, where the open intervals Ij are pairwise disjoint and of length lj,. Since |Ω|1= sum from j=1 to ∞lj < +00, we can assume, without loss of generality, that l1 ≥l2 ≥…≥lk ≥…> 0. In this paper, we consider the eigenvalue problem of the p-Laplace operator with mixed boundary-value conditions, i.e.,     

NFZ-10工业辐照电子直线加速器

研制的电子直线加速器ＮＦＺ－１０的辐照加工能力相当于３０ＰＢｑ的６０Ｃｏ源，电子束能量为４～１２ＭｅＶ，平均束功率为３ｋＷ，扫描宽度为１ｍ，能量不稳定度≤±０．５％，束流不稳定度≤±０．６％，扫描不均匀度≤±２．５％。ＮＦＺ－１０加速器已被用于辐照各种电力半导体器件，一年多来运行稳定可靠并获得较好的经济效益。     

食管贲门癌患者血清微量元素的变化

检测了３０例食管贲门癌患者手术羊后的ＳＣｕ，ＳＺｎ及Ｃｕ／Ｚｎ比值，并以２８例健康查体者作对照研究，发现：（１）食管贲门癌患者术前血清ＳＣｕ及Ｃｕ／Ｚｎ值高于对照，ＳＺｎ低于对照；（２）肿瘤患者术后１０天血清ＳＣｕ及Ｃｕ／Ｚｎ值下降，ＳＺｎ接近正常，通过本文研究提示，血清ＳＣｕ，ＳＺｎ及Ｃｕ／Ｚｎ比值与食管贲门癌患者的病情和疗效有关，可作为监测和判断病情和预后的辅助检查。     

尼泊金酯类的微波合成

尼泊金酯类防腐剂(即对羟基苯甲酸甲、乙、丙、丁酯)由于毒性极低,无刺激性及适用于较宽pH范围等特点,广泛用于食品、化妆品和医药工业。该类防腐剂无论是采用国际流行的工艺或国内生产工艺,均存在酯化时间长(一般为5h)、产率低等问题。虽经改进,但也需3h以上,且添加去水剂-苯后,不仅使工艺难