Sulfide-melt inclusions in mantle xenoliths of Hannuoba, China

Sulfide fluid incluision study on mantle xenoliths of Hannouba has been carried out by EPMA analysis. It is indicated that the Ni/Fe ratios of metal sulfides in sulfide-melt inclusions from Hannuoba seem to be related to host rocks. These data of lherzolite (pentlandite) are obviously higher than those of olivine pyroxenite (mainly pentlandite, partly pyrrhotine). The LRM analysis shows that sulfur (H₂S + SO₂) occupies larger proportion in gas composition of CO₂ fluid inclusions, generally more than mol 20%. This may be related to sulfide inclusions which are frequently found.     

生长表面中的点缺陷对表面生长行为的影响

采用修正的ＫＰＺ方程和动力学重整化群技术,求解生长表面或界面中存在点缺陷或杂质时的标度指数Ｘ和ｚ,所得结果表明点缺陷与杂质的存在倾向于使生长表面更加粗糙化。     

光网络中的全光上下话路(OADM)技术

对目前的OADM方案进行了综述,归纳为4类形式,对各类OADM的结构和主要性能做了介绍和评估,并对2种OADM的结构进行了实验研究,最后结合一个OADM的实例做了说明。     

Selectivity of CC Traps in Catching Green Leafhoppers and Thrips

在中国广西南宁,测定８种不同基座颜色的ＣＣ诱捕器对豇豆（ＶｉｇｎａｓｅｓｑｕｉｐｅｄａｌｉｓＷｒｉｇｈｔ）上的叶蝉、蓟马的诱捕作用。蓝色基座诱捕器对华筒管蓟马（ＨａｐｌｏｔｈｒｉｐｓｃｈｉｎｅｎｓｉｓＰｒｉｅｓｎｅｓ）的诱集量为白色基座诱捕器的２倍（２２．８头／诱捕器天）,其他基座颜色诱捕器的诱捕量为０．１～１．７头／诱捕器天。ＣＣ诱捕器对叶蝉（Ｅｍｐｏａｓｃａｓｐｐ．）的诱集量为４头／诱捕器天,不同基座颜色诱捕器的诱集量差异不显著。在印度,测定白色、黄色和绿色基座诱捕器对花生上两种蓟马的诱捕作用。白色基座诱捕器对茶黄蓟马（ＳｃｉｒｔｏｔｈｒｉｐｓｄｏｒｓａｌｉｓＨｏｏｄ）的诱集量为３９．８头／诱捕器天,为黄色基座诱捕器的２倍多。绿色基座诱捕器的诱集量最少。白色基座诱捕器对瓜蓟马（ＴｈｒｉｐｓｐａｌｍｉＫａｒｎｙ）的诱捕量（１７．３头／诱捕器天）也显著高于黄色基座诱捕器（１１．０头／诱捕器天）。结论为：白色和蓝色基座诱捕器可用于监测豇豆、花生上蓟马的种群数量。     

基于非正交实小波的框架扩展方法及滤波应用

该文由框架定义导出其自扩展性,并在此理论基础上把调制思想运用于小波变换,提出了一种基于非正交实小波的框架扩展方法,并以墨西哥草帽小波为例对该方法给予详细的说明。使用该方法可以构造出具有正交小波尺度函数特性的框架———调制小波,这种调制小波不但具有优良的滤波特性,而且对噪声具有鲁棒性,还兼有窗函数易于实现的优点。     

路桥多媒体收费监视与管理系统的设计与实现

描述了一种集电视、语音与计算机通信和管理于一体的用于路桥收费站的多媒体网络系统,给出了系统结构原理与主要的设计思路及通信协议等．该系统在现场半年多的使用过程中未发现误传数据的现象,说明系统的设计合理,具有很好的推广应用前景．     

PMN基电致伸缩材料

试验以PMN基弛豫铁电体为基础,通过掺杂和优化工艺,研制出性能优异的电致伸缩材料(1-y)［(1-x)PMN-xPT］-yWO     

Store Environment: Its Importance and Consumers' Expectations on Ca-sual - wear Chain Stores in Honk Kong

This study attempted to examine the importance of storeenvironment in affecting consumers'store choice deci-sion;the relative importance among the three environ-mental factors;and consumers'expectations on store en-vironment for the casual-wear chain stores in HongKong.Julie Baker's Three-category framework onstore environments namely ambient,design and socialfactors was adopted for investigation.The results indi-cated that the store environment was important in affect-ing consumers'selection of store for shopping.It alsorevealed that social factor was perceived relatively im-portant than ambient and design factors.Nine store ex-pectation dimensions were categorised and the resultdemonstrated that most respondents were concerned onthe social aspect in their expectation of having a satisfy-ing store environment.     

大学生考试作弊的心理学分析

本文从大学生考试作弊的心理过程、直接心理和深层心理三个方面,分析了大学生考试作弊这一大学校园里常见的问题行为,并提出了防治大学生考试作弊的心理对策,以期对这一问题的解决有所帮助。     

采用金属阳极溶解法合成纳米MgO前驱体

以金属镁作为“牺牲”阳极,在乙酰丙酮醇溶液中,采用电化学溶解金属镁一步制备了纳米MgO前驱体Mg(OEt)2-x(acac)x,Mg(OBu)2-x(acac)x[acac为乙酰丙酮基]．通过傅里叶变换红外光谱(FT-IR)、拉曼光谱(Raman spectrum)对其进行了表征．可讨论了影响电合成镁醇盐配合物的关键因素．实验表明,温度控制在40～50℃,导电盐Bu4NBr浓度为0．04～0．05mol／L较为适合,同时防止阳极钝化,有利于提高电合成效率。