南京地区软岩承载力确定方法的探讨

根据多个工程的岩基载荷试验和岩石单轴抗压强度试验，对南京地区软岩地基承载力的确定方法进行了分析和探讨，提出了解决思路和建议。     

复大产业迷云

2006年3月27日，上海《东方早报》以一篇名为《复大公司基因检测疑云重重记者暗访揭开面纱》的报道拉开了为时十数天对复大公司连续报道的序幕。而早在3月20日，联合基因科技集团与上海复旦生物科技有限公司联合发布的一则通告中，也提到了复大公司。这份通告中称，“复大公司”“在运行过程中没有尊重和有效保障我公司合法权利”，决定全面停止与复大公司合作。     

基于模糊逻辑系统的组合大系统自适应观测器设计

针对一类非线性不确定组合大系统，利用模糊逻辑系统具有充分逼近连续函数的性质，分析和研究了这类系统自适应状态观测器设计问题，并在较弱的假设条件下，证明这种观测器与被控系统状态间的误差及各参数估计误差一致终极有界。最后的仿真实例说明了本文所提出方法的有效性。     

西部经济大开发存在的问题及对策

中国西部经济大开发过程中存在着五大问题，经济发展滞后，投资环境不够完善，科技创新能力不够，人才问题及全民综合素质问题，接纳外部投资力度不够，本通过这些问题的分析提出了西部经济大开发有效展开的思路对策。     

用地球化学特征判别川北含铀砂岩

文章阐述了川北砂岩型铀矿床的地球化学特征。根据能谱测量，用Ｕ，Ｔｈ，Ｋ元素的丰度和比值，获得铀富集的有利条件、不利条件。通过伽马能谱法（测Ｕ，Ｔｈ，Ｋ）和Ｘ射线荧光法（测Ａｓ，Ｂａ），区分含铀浅色砂岩和不含铀浅色砂岩，区分红色砂岩（红色泥岩）与浅色砂岩，缩小川北砂岩找铀矿的范围。     

立井深孔大孔距崩落爆破技术

根据露天采矿爆破时采用大孔距小抵抗微差爆破技术，提高爆破效率，改善破碎效果的原理，结合立井施工的具体特点，从理论上分析研究了立井深孔大孔距崩落爆破时孔网参数的合理选定，并初步在实践中进行应用，取得了较好的爆破效果。     

在不同水硬度下铜对草鱼、鲢和大鳞泥鳅的急性毒性

实验以草鱼、鲢和大鳞泥鳅的鱼苗为材料,测定了水硬度对铜的急性毒性的影响,水硬度在255、141、37和14mg/L(以 CaCO_3计)时铜对草鱼的48小时 LC_(50)分别是519、354、91和76μg/L,96小时 LC_(50)则分别为460、307、67和39μg/L.在同样的硬度条件下,对鲢的48小时 LC_(50)是452、393、71和40μg/L,96小时 LC_(50)分别为452、296、41和31μg/L.大鲢泥鳅鱼苗在硬度260、137、36和10μg/L(以 CaCO_3计)条件下,铜的48小时 LC_(50)为369、305、1113和67μg/L,而96小时 LC_(50)则分别是226、135、67和18μg/L.铜的急性毒性和水硬度之间的关系可用下列方程来描述:草鱼 ln96小时■_(50)=1.1345+0.9051ln 硬度 r=0.99ln96小时■_(50)=2.2118+0.7220ln 硬度 r=0.97鲢 ln96小时■_(50)=0.4564+1.0207ln 硬度 r=0.97ln96小时■_(50)=1.1371+0.9232ln 硬度 r=0.98大鳞泥鳅ln96小时■_(50)=1.2823+0.7506ln 硬度 r=0.99ln96小时■_(50)=2.8635+0.5563ln 硬度 r=0.99     

An in situ zircon Hf isotopic,U-Pb age and trace element study of banded granulite xenolith from Hannuoba basalt： Tracking the early evolution of the lower crust in the North China craton

Backscattered electron images, in situ Hf isotopes, U-Pb ages and trace elements of zircons in a banded granulite xenolith from Hannuoba basalt have been studied. The results show that the banded granulite is a sample derived from the early lower crust of the North China craton. It is difficult to explain the petrogenesis of the xenolith with a single process. Abundant information on several processes, however, is contained in the granulite. These processes in-clude the addition of mantle material, crustal remelting, metamorphic differentiation and the delamination of early lower crust. About 80% of zircons studied yield ages of 1842 ±40 Ma, except few ages of 3097-2824 Ma and 2489-2447 Ma. The zircons with ages older than 2447 Ma have high εHf (up to +18.3) and high Hf model age (2.5-2.6 Ga), indicating that the primitive materials of the granulite were derived mainly from a depleted mantle source in late Archean. Most εhf of the zircons with early Proterozoic U-Pb age vary around zero, but two have     

Large eddy simulation of the gas-particle turbulent wake flow

To find out the detailed characteristics of the coherent structures and associated particle dispersion in free shear flow, large eddy simulation method was adopted to investigate a two-dimensional particleladen wake flow. The well-known Sub-grid Scale mode introduced by Smagorinsky was employed to simulate the gas flow field and Lagrangian approach was used to trace the particles. The results showed that the typical large-scale vortex structures exhibit a stable counter rotating arrangement of opposite sign, and alternately form from the near wall region, shed and move towards the downstream positions of the wake with the development of the flow. For particle dispersion, the Stokes number of particles is a key parameter. At the Stokes numbers of 1.4 and 3.8 the particles concentrate highly in the outer boundary regions. While the particles congregate densely in the vortex core regions at the Stokes number of 0. 15, and the particles at Stokes number of 15 assemble in the vortex braid regions and the rib regions between the adjoining vortex structures.     

新疆若羌县赤石山变质核杂岩研究

新疆北山裂谷带西缘若羌县赤石山地区存在大型变质核杂岩构造。其下拆离盘为古元古界结晶基底杂岩 ,上拆离盘为中元古界白湖群变质岩系 ,滑脱拆离带为已变形的大型韧性正断层。核杂岩南、北侧发育上叠盆地 ,北侧形成“年轻”正断层及同构造期岩浆岩。变质核杂岩的形成与晚古生代北山陆内裂谷区域伸展有直接联系。该区变质核杂岩的首次厘定 ,对深化北山裂谷的研究具有重要意义