地下工程中岩爆灾害的成因及防治措施

岩爆是地下工程掘进过程中所遇到一种动力地质灾害，其危害较大。根据当前国内外大量岩爆的统计资料，结合在二郎山隧道知锦屏二级水电站勘探洞所遇到的岩爆现象，提出了岩爆是由构造、浅表生改造、围岩的岩体强度、岩层产状、围岩应力状态、变形特性、地下工程布置等多种影响因素综合作用的结果。就岩爆的力学机制问题，认为岩爆力学机制的实质属于压致拉裂破坏。     

钢筋轧后控制冷却的数学模型

通过对热轧棒材进行在线热处理既可以提高强度，又可以降低成本，是近年来发展较快的一项新工艺，通常被称为热芯回火工艺，也称为穿水冷却工艺。介绍了穿水冷却控制过程，并对这一控制过程的核心问题冷却数学模型进行了探讨。根据螺纹钢筋轧后冷却过程中的热交换特点，从理论上进行分析与推导，并利用数学方法进行简化，得到结构简单实用的两个数学模型：始冷温度预报模型和冷却水量模型。该模型对现场环境变化适应性强，有自学习能力实用于现场控制。     

炼钢物流仿真系统的设计与开发

针对炼钢生产物流情况，在确定系统的设计目标和设计原则基础上，综合运用赋时着色Petri网和排队网络方法，以面向对象技术设计和开发了炼钢物流仿真系统。设计的仿真系统具有建模、运行、模型管理、数据管理、动画展示、结果分析和在线帮助功能。介绍了该系统的总体结构和数据流程，以攀钢提钒炼钢厂主物流的输入条件进行了实例仿真，检验了仿真系统的有效性。仿真结果还可提供炼钢生产调度的Gantt图和仿真结果统计分析，可用于辅助炼钢生产管理决策。     

新型中孔多金属氧酸盐复合材料光催化降解染料罗丹明B的研究

以胺修饰的中孔氧化硅为载体，通过自组装技术制备了一取代keggin结构的K5［Ni（H2O）PW11O39］(以下简称PW11Ni)复合材料，并研究了该复合材料对可溶性染料罗丹明B(简称RB)光催化的活性。实验结果表明。该复合材料光催化RB的活性高于RB的直接光解和PW11Ni均相光催化。其中，复合材料PW11Ni—APS—SiO2可在180min内使RB的转化率达到91．6％。具有一定的开发价值。     

现代主义文学唤醒沉睡的人性

中国传统文化的自身缺陷导致了传统文学中人性的缺失,在作家笔下性成了被压抑的对象,人成了道德化、畸形化了的人,人性在文本中得到扭曲。随着西方现代主义文学渐趋渗透,许多文化先驱接受了这一理论,并指导他们的文本创作,打破了传统文本创作的禁区,以一种更理性、更接近人自身的方式书写人性,唤醒了沉睡已久的性意识,从而使文学中对人性的探讨更趋于完善与全面。     

Design and application of 60mer oligonucleotide microarray in SARS coronavirus detection

In April 2003, a novel coronavirus[1,2] which was associated with cases of Severe Acute Respiratory Syn-drome (SARS) was first isolated and sequenced in Canada. The genome of SARS coronavirus (SARS-CoV) is 29727[3] nucleotides in length and has 11 known open reading frames (ORFs). Although the genome organiza-tion of this virus is similar to that of other coronaviruses, phylogenetic analyses and sequence alignment show that SARS-CoV is not closely related to any of the previously ch…     

The age of formation of the mirabilite and sand wedges in the Hexi Corridor and their paleoclimatic interpretation

The Hexi Corridor is located at the transition zone of the Asian summer monsoon and westerly airflow, and lies in an important position in terms of its ecological fragility and climatic sensitivity. During a recent field expedition to this region, we found a sedimentary mirabilite layer in a number of localities including Suwushan, Yanchi, Baitujing, Yanchi Gaotai, Huahai, Yumen, Halanuo扙r, and Dunhuang (Fig. 1), which have the potential to provide important information about environmenta…     

Loess-soil sequences in southern Anhui Province： Magnetostratigraphy and paleoclimatic significance

Two parallel loess-soil sequences from Xuancheng and Fanchang in southern Anhui Provinces are dated using geomagnetic and luminescence methods.The Brunhes/Matuyama(B/M) reversal boundary is recognized within the lower part of the so-calles Vermiculated Red Soil (VRS) in the Xuancheng section while the entire Fanchang sequence is of Brunhes age.This indicated that the most recent VRS in southern China,a stratigraphic marker and an indication of extremely warm-humid conditions,was formed during the middle Pleistocene,chronologically correlative with the S4 and S5 soil units in northern China.Microscopic and sedimentologic in vestigations reveal that eolian deposition started in this region at about 0.85 MaBp,roughly synchronous with the well-known Mid-Pleistocene climate change of global significance.The strengthening of both summer and winter monsoon circulations and the consequent river hydrological changes at that time would have provided favorable conditions for sustained eolian deposition in the middle-lower reaches of the Yangtze River since 0.85 MaBP.     

彗星电泳检测细胞DNA损伤应用新进展

彗星电泳是近年发展起来的一种测定单个细胞DNA损伤的方法 ,因其操作简单、快速及灵敏等特点 ,应用范围十分广泛 .着重介绍了这一技术的发展、图形分析及应用进展     

无剪切闭锁的厚薄板矩形单元的构造

在板弯曲的有限元计算中 ,因为剪切闭锁现象导致厚板元无法自动退化为薄板元 ,工程中很难构造既适用于厚板又适用于薄板的计算单元 ,因此采用由龙驭球教授提出的广义协调元法 ,构造了矩形厚薄板弯曲通用计算单元 .通过铁木辛柯梁理论 ,建立了板单元边界和板单元内部的位移插值场函数 .计算结果表明该单元可顺利解决剪切闭锁现象 ,可在实际工程中推广应用