HARICH-CHANDRA MODULES OVER LIE SUPERAL GEBRAS

In this paper, we obtain a theorem for the classification of the irreducible Harich-Chandra modules over G, Where G is a basic classical Lie superalgebra of I type. And the list of the classi-ficatication is given for G=A(1,0).     

关于感生电场和库仑电场的讨论

通过剖析两个实例，讨论感生电场和库仑电场性质上的差异以及电压的定义问题，澄清对两种场认识上的一些误解．为进一步计算似稳电路打下了坚实的理论基础．     

格值诱导空间的若干特征定理

讨论了格值诱导空间及相关的弱诱导空间和满层空间的代数特征和拓扑特征。     

复线电气化区段施工感应电对人体的危害及防护对策

感应电会对人体造成伤害。从电磁感应和静电感应原理入手，分析了产生感应电的过程，并就如何防止感应电的危害提出了防护对策，有一定实用价值。     

电化学沉积Cu-In-Se薄膜

采用电化学沉积方法在钼箔上制备Cu-Se、In-Se和Cu-In-Se薄膜,对电沉积的工艺参数进行了测试,发现Cu-In-Se是一种诱导共沉积,虽然沉积膜不具备化学计量比,但具有一定的光电性能.     

低频时谐载流圆环和无限长螺线管的感生电场

当载流圆环和无限长螺线管所通的电流为低频时谐载流时必将激发感生电场,文章利用 ×E k=- B t求解载流圆环和无限长螺线管的感生电场,通过理论分析获得低频时谐载流圆环和无限长螺线管全空间感生电场的表达式。     

Lightning activity on the central Tibetan Plateau and its response to convective available potential energy

Lightning flash activities on the central Tibetan Plateau have been studied by using the satellite-based Lightning Imaging Sensor(LIS)database from January 1998 to July 2002.The lightning activity shows a clear diurnal variation on the central Plateau.The peak lightning activity appears at about 17:00 which is 3 h earlier than that in Jingxhou,Hubei in the same latitude belt nearby,indicating that the lightning activity is a sensitive indicator of solar heating on the Plateau.The lightning discharge is weaker on the Plateau than Jingzhou.Hubei and other low-altitude continental regions because of the lower convective available potential energy(CAPE)on the Plateau.The CAPE on the Plateau is 12 times lower than that in Jingzhou,Hubei,and 20 times lower than that in the sea-level region,such as Guangzhou and Florida.However,the sensitivity of lightning activity to CAPE changes on the Plateau is up to 30 times more sensitive than other prominent low-altitude regions.     

磁空间群Pб_ 3/m''''m’c''''不可约共表示的计算

群表示理论在群论的发展和应用中占有十分重要的地位,它对求解C-G系数,同位标量因子及母分系数是必不可少的。本文主要以P6_3”m′m′c′的对称点L点为例,应用诱导表示的方法,介绍磁空间群不可约共表示的计算方法。     

几种真菌的诱导产孢试验

几种在常规培养条件下不产生繁殖体的真菌的诱导产孢试验结果表明:大茎点菌属[Macrophoma(Sacc.)BerleseetVoglino]、茎点霉属[PhomaSacc.]、壳球孢属[MacrophominaPetrak]的真菌,通过预培养、扫刷营养体、光诱导后能产生分生孢子器及分生孢子;轮枝菌属[VerticilliumNeesexWallr.]、头孢属[CephalosporiumCorda.]的真菌,通过预培养、扫刷营养体后,在有光或无光条件下均能产生分生孢子梗及分生孢子.     

精密相干检测法研究

研究了精密相干检测法的原理,即采用共时钟方案,使与发送机有关的参考信号同接收机接收到的待测信号精密相干,同时精确检测出复合波信号中各主要谐波的振幅和相位.应用结果表明:该方法克服了微弱复合波信号的锁相放大、数据采集、叠加平均和获取多参数时遇到的困难,提高了观测系统的灵敏度、测量精度、抗干扰能力、探测分辨率和探测深度;精密相干检测法原理同样适用于其他观测系统和对其他类型信号的检测.