高频等参数感应(ВИКИЗ)测井技术应用

介绍了高频等参数感应的基本原理。以胜利油田比较典型的 3口井为例 ,详细分析了高频感应资料在划分薄夹层、确定储层流体饱和类型、评价储层电阻率空间分布等方面的应用。研究结果表明 ,高频感应具有极高的纵向分辨率和较好的径向探测特性 ,能够准确计算地层真电阻率、侵入带电阻率及侵入半径 ,通过与常规感应及薄层测井资料的对比 ,论证了高频等参数感应在测井技术应用上的优越性     

凰蛔柿戏ā⒐δ芊ā⑶呦喙胤ê妥畹湍昶

njiang Institute of Ecology and Geography,CAS Urumqi,830011,Xinjiang,China;2 Agriculture Technologg Service Station of the Sixth Agriculture Division,XPCC Wujiagu 831300,Xinjiang,China;3 Arboretum of Urumqi City,Urumqi 830011,Xinjiang,China)The lake plays an important role in maintaining the ecological balance.A study on the lowest ecological water level of lake is significant in solving the ecological degeneration of lake in China.This paper analyzes six kinds of calculation methods of the lowest ecological water level of lake: the yea     

用AsTray随心设置EeePC的显示屏分辨率

不论是采用7英寸还是9英寸显示屏的EeePc都存在一个不足．分辨率较低有时甚至会因为不能完整显示程序窗口造成无法操作。特别是第一代采用7英寸显示屏的EeePC．分辨率只有800×480,虽然可以通过EeePC自带的“EeePC Tray Utility”调整为800×600,但仍然不能完整显示部分程序的窗口,而且要浏览显示的全部内容还需要上下移动,非常不方便。     

李宁携手淘宝共同打造官方网店

在人们纷纷谈论如何应付经济危机的时候,李宁出招了。电子商务这一招,李宁选择了淘宝,出手相当快。这个春节,李宁品牌的拥夏们已经发现,李宁在淘宝上推出了"李宁试衣坊"活动。而在不久前,在淘宝网发布的2008年企业十大网商中,李宁的淘宝官网也赫然在列。     

Investigating deformation processes in AM60 magnesium alloy using the acoustic emission technique

Microstructure changes in an AM60 magnesium alloy were monitored using the acoustic emission (AE) technique during tensile tests in the temperature range from 20 to 300 °C. The correlation of the AE signal and the deformation processes is discussed. It is shown, using transmission electron and light microscopy, that the character of the AE response is associated with various modes of mechanical twinning at lower temperatures, whereas at higher temperatures also the influence of c + a non-basal dislocations on the AE response must be taken into account.     

制笔技术词典（19）

《表面处理》surface treatment 是一门内容广泛,涉及很多方面的综合性学科,应用面亦很广。对制笔行业而言,表面处理的目的首先是为了美化装饰,同时亦是为了保护。由于它直接影响笔的外观、性能和使用寿命,所以表面装饰处理对随身携     

Plastic Properties of a Mg-Al-Ca Alloy Reinforced with Short Saffil Fibers

AX41 magnesium alloy was reinforced with short Saffil fibers using squeeze cast technology. Samples of the composite were deformed in compression at elevated temperatures. The work hardening rate as a function of the flow stress in the matrix was investigated. A model taking into account two hardening and two softening processes was used for analyzing of experimental curves. Parameters of the model follow different temperature dependences. Possible hardening and softening processes are discussed.     

浅析电子商务促进区域一体化发展

随着2008年12月提出《珠江三角洲地区改革发展规划纲要》的提出,小珠三角再次成为世界焦点,其中深莞惠区域合作也被世人关注。但是区域合作知易行难,如何解决地方保护主义、同构严重等问题,本文认为,电子商务是一个可行方案并作出证明。     

Characterization of Microstructure and Mechanical Properties of Mg–Y–Zn Alloys with Respect to Different Content of LPSO Phase

The Mg–Y–Zn alloys with different contents of alloying elements are extruded at an extrusion ratio of 4:1 at 350 °C. The microstructure of the alloys is of an inhomogeneous character showing fine grains produced due to dynamic recrystallization and coarse original grains elongated along the extrusion direction (ED). Moreover, Y and Zn form a long‐period stacking‐ordered (LPSO) phase whose volume fraction increases with their increasing content in the alloy. All investigated alloys exhibit distinct fiber textures with basal planes oriented parallel to ED. It is seen that increasing content of alloying elements leads to a weaker texture. Compression tests with concurrent acoustic emission (AE) measurements are performed along ED at room temperature and a constant strain rate in order to reveal active deformation mechanisms in the alloys and to relate them to their mechanical properties. The AE response is also discussed with respect to the volume fraction of the LPSO phase.