祁连山东段冲积扇的发育时代及其成因

第四纪期间祁连山东段山麓地带广泛发育了多级冲积扇,它们是研究区域构造抬升与气候变化最为直接的载体.本文主要通过ESR,IRSL以及14C等绝对测年手段对该区冲积扇的形成年代进行研究,结果表明祁连山东段北麓最高级冲积扇形成于0.85 MaBP,而毛毛山南麓的最高级冲积扇形成于0.43 MaBP.随后各地又相继发育了0.25,0.16,0.06,0.01 MaBP等多级冲洪积台地.根据主要冲积扇的形成年代及其与区域构造气候事件的对比,认为它们是构造运动与气候变化共同作用的产物.     

High Power One- and Two-Order Cascaded Raman Lasers Based on Home-Made Phosphosilicate Fibre

One- and two-order cascaded Raman fibre lasers are demonstrated by using home-made P-doped Raman fibres.An output power of 2.8 W at 1245 nm with a slope efficiency of 33.4% and an output power of 2.0 W at 1495 nm with a slope efficiency of 23.5% are obtained with the pump source at 1069. 7nm.     

关于在2—距离空间中集值映射不动点(续)

本文系上篇论文[3]的续篇。在其中,进一步论述了2—距离空间中集值映射不动点的一系列结果。     

网的收敛与分离公理

用Ｍｏｏｒｅ－Ｓｍｉｔｈ收敛给出了一个拓扑空间分别是Ｔ０，Ｔ１，正则，正规空间的充要条件．     

平面上Volterra型随机微分方程解的轨道惟一性

In this paper we prove the pathwise uniqueness of a kind of two-parameter Volterra type stochastic differential equations under the coefficients satisfy the nonLipschitz conditions. We use a martingale formula in stead of Itǒ formula, which leads to simplicity the process of proof and extends the result to unbounded coefficients case.     

插值Blaschke积的两个刻划定理

信据Ｂｌａｓｃｈｋｅ积在Ｈ＾∞的极大理想空间Ｍ上的零点分布，给出了Ｂｌａｓｃｈｋｅ积是插值Ｂｌａｓｃｈｋｅ积的两个刻划定理。