(Y,Ce)TZP-Al_2O_3陶瓷显微组织对力学性能及热稳定性的影响

研究了(Y、Ce)TZP-Al_2O_3陶瓷的显微组织对其力学性能和热稳定性的影响。结果表明,试样表面t-ZrO_2失稳相变是造成低温时效和热循环条件下材料强度下降的主要原因。添加CeO_2稳定剂和Al_2O_3相可较大幅度地提高(Y,Ce)TZP-Al_2O_3陶瓷的力学性能及热稳定性。1550℃烧结晶粒尺寸0.9μm,其力学性能和热稳定性综合性能优越。     

脱落酸对离体叶片衰老的影响及其与活性氧代谢的关系

研究了脱落酸对离体韭菜叶片衰老的影响与活性氧代谢的关系.发现在暗诱导衰老过程中膜脂过氧化产物丙二醛含量随超氧物歧化酶、过氧化氢酶活性和抗坏血酸、谷胱甘肽含量下降而增加.脱落酸处理后,伴随着叶绿素和蛋白质含量下降,超氧物歧化酶、过氧化氢酶活性和抗坏血酸、谷胱甘肽含量降低,而丙二醛含量增加.证明脱落酸促进离体韭菜叶片衰老的作用与活性氧代谢有密切关系.     

Spatial teleconnection pattern between Indian Ocean Dipole and the southern high-latitude sea level pressure field

Sea level pressure (SLP) anomalies over the southern high latitudes associated with the Indian Ocean Dipole Mode (IOD) are investigated. Partial correlation and composite analysis depict, for the first time, the seasonal spatial variability in the relationship of SLP field in Southern Ocean with IOD. Results suggest that the IOD signal exists in the southern high latitudes and it is enhanced in boreal autumn, an active season of IOD. On interannual to subdecadal timescales, the spatial teleconnection pattern exhibits a wavenumber-3 pattern around the circumpolar Southern Ocean and the lead-lag correlation analysis shows that there are about 3 months of SLP anomalies in southern high latitudes lagging IOD, which indicates that the response time is almost instantaneous.     

基于VoiceXML的呼叫中心的研究和实现

在呼叫中心的建设中，为用户提供更为方便、灵活的接入方式在电子商务迅速发展的时代显得尤为重要。结合实际开发中的经验，介绍了基于VoiceXML的呼叫中心的体系结构及备模块的功能。     

浅谈大同矿区开采石炭系煤层矿井水的防治

针对大同矿区石炭系煤层矿井水防治的重要性，从地表水防治、上部采空区积水防治、同层采空区积水防治等方面详细阐述了石炭系煤层矿井水的防治方法。     

On the structure of AP-4 responsive element in the LTR of Jembrana disease virus

As a bovine lentivirus,Jembrana disease virus (JDV) is genetically similar to the bovine immunodeficiency virus (BIV). Unlike other lentiviruses which always have a long incubation period, e.g. 8—10 years for HIV, JDV infection causes an acute illness with shorter incubationpreriod and higher mortality. In the experimentally inocu-lated cattle, the incubation period varied from 8 to 12 d before the onset of clinical symptoms, which is very simi-lar to bovine plague with a high titer of J…     

Kinetics of early methane generation from Green River shale

During oil/gas exploration in an area, there is a question as to whether methane in the strata was generatedin situ mainly by thermal degradation of local organic matter. The key to the question is whether the kerogen could produce methane of more than 80 mL/g TOC, when its R_o increased from initial (0.36%) to current value of 0.70% during thermal evolution. The authors have made efforts to answer this question by the kinetics method. First, a series of pyrolysis experiments were carried out to obtain data of methane yield and R_o evolution, from which kinetic parameters of methane and R_o were derived; then these parameters were extrapolated to the geological condition and finally, a methane yield, 96 mL/g TOC, was predicted. The result suggests that from the view of hydrocarbon generation, methane in the seam should be from thermal degradation of local kerogen.     

拖网曳纲力学计算的研究

曳纲是拖网渔具中的重要组成部分，对曳纲进行力学计算，不但对于研究拖网渔具，而且对于拖网作业水层都是十分必要的。本文阐述了拖网船匀速直线运动时曳纲作为平面问题和空间问题以及加速运动时的情况，并将计算结果进行比较和分析。     

毕业生分配管理系统与决策支持系统总体设计

该文论述“全国毕业生分配管理信息系统与决策支持系统”的系统目标，设计要求以及该系统的信息项与信息规范，系统功能，程序模块，系统接口等设计内容与主要成果。