连片叠前深度偏移处理技术在孤西地区的应用

孤西断裂带地质构造十分复杂,速度横向变化较大,该区已进行了三维连片处理,但潜山的构造背景及准确细致的构造形态仍不清楚,制约了对该区带的深入地质研究和评价。采用匹配滤波、叠前数据规则化等技术对叠前连片道集进行精细处理后,再进行叠前深度偏移迭代,并利用层析成像法对层速度模型进行校正,成像剖面信噪比较高、潜山归位准确,内幕清楚,发现和落实了多个圈闭构造。     

笕桥机场12.6冬季雷雨的分析

雷雨对飞行安全影响很大，一直为航空气象预报所重视．但冬季雷雨极为少见，事先特征也不明显，很容易漏报，给飞行安全带来很大的影响．1997年12月6日，笕桥机场发生了一次漏报的冬季雷雨，这是一个十分难得的个案材料．本文利用天气系统、探空资料、物理量、数值预报产品，对本次过程进行探讨，归纳总结其发生发展的特征，重点说明数值预报产品对预报系统性强对流天气的强度和落区有很好的参考启迪作用.     

炼铁高炉内部情况检测的高炉CT方法

本文提出一和中用于炼高炉内部情况无损检测的新方法－高炉ＣＴ方法。     

离焦情况下波带片衍射光强的数值计算

基于非傍轴近似下菲涅耳 -基尔霍夫积分公式 ,讨论了波带片在离焦条件下的光斑特性 .通过数值计算 ,分别得到了在小离焦量和大离焦量时光强沿光轴径向的分布曲线、中心光斑的大小以及在特定范围内总能量随离焦量的变化规律 .为实际工作中应用波带片提供了更好的理论依据 .     

浅谈形位公差带的五因素分析法

文章从几何上探讨了方向与方位的定义，阐述了形位公差带的方向与方位的概念，提出分析形位公差带的五因素分析法。     

裂尖塑性流变区的实验研究（Ⅱ）

为了进一步验证我们关于流变断裂学理论的新见解,特别是作者提出的“变质量断裂模型”的正确与否,本文对裂尖塑性流变区的实验研究进行了阶段性的报告。文中提出了“光塑性实验新方法”,在国防科大和兰卅石油机械研究所的支持下,利用现代高科技成果对塑料试件随外载连续而不可逆的色度场进行了数字图象分析和红外扫描研究后,使我们能定量地给出裂尖塑性区随裂纹扩展的变化情况及对应的温度场,应力应变场和热耗散值。文中给出了部分由计算机处理后的彩色图片和计算结果。这些新的方法和实验结果表明我们在这方面的研究走在国内外前列,它不但为断裂力学研究提供了新的方法和手段,而且在弹塑性力学,有限元计算和解决工程实际问题等方面都具有广泛而重要的应用价值。     

浅谈高层建筑后浇带的设计与施工

本文中较为详细地介绍了高层建筑后浇带的设计与施工,分析了其中存在的问题,提出了具体方法和措施.     

Ants feeding on anal exudate from tortricid larvae: a new type of trophobiosis

A new type of trophobiosis between tortricid larvae of a hitherto unknown genus and species, and various ant species of the subfamilies Formicinae, Dolichoderinae and Myrmicinae, was found in Malaysia. The larvae live in silken shelters fixed to the leaves of bamboo. In response to mechanical stimuli from the ants, they discharge from the anus a liquid containing sugar and amino acids and/or protein. The tortricid is described as Semutophila saccharopa gen. nov., sp. nov.; a second species, S. susurra sp. nov., is described from New Guinea.     

II.—A synoptic revision of the Tanyrrhynchinæ (Curculionidæ)

This paper describes two new earthworm species, Iridodrilus codonothecoformis sp. n. and Iridodrilus condylopapillaris sp. n. and illustrates the major diagnostic features of, and the differences between, Iridodrilus roseus Beddard, 1897 and Heliodrilus lagosensis Beddard, 1890. Hitherto unnoticed features of I. roseus are also illustrated, namely that it possesses a bursa copulatrix and that two pairs of very tiny penial setae in sacs occasionally occur which penetrate the bursa copulatrix. It is also demonstrated that the structures hitherto regarded as a ‘coelomic duct’ that supposedly links the two fertilization chambers is in fact a pair of ovarian ducts that lead from the paired ovaries to the chambers; these ducts are not interlinked. It is further argued that neither Iridodrilus roseus nor Heliodrilus lagosensis can be regarded as having a spermathecal system that is paired internally. The implications of these findings are discussed in relation to the taxonomy of the two named genera. It is recommended that Iridodrilus and Heliodrilus be regarded as valid genera s.s. Beddard, though with modified diagnoses.     

Characteristics and laws of MODS coupling relation in arid zone under global change

Global change has influenced the distribution pattern and spatio-temporal changes of resources in arid zone, and has restrained the land use and land cover change, which is shown by water-heat state, landscape structure, climate effect, and human activities. The above-mentioned characteristics have a close coupling relation with the mountain-oasisdesert system （MODS）. The climate in Central Asia arid zone is warm and wet, which is different from that in northern China which takes a tendency of aridity, and the mechanism has restricted the characteristics and laws of MODS. Systematic interface characteristics and process, especially the formation, transformation and consumption laws of water resource reflect directly MODS＇s response to global change in arid zone. Spatio-temporal pattern, dynamic change, scale change and coupling mode of MODS reflect the ecology mechanism between the systems and within the systems.