早寒武世放射虫的发现及其意义

用酸蚀法从陕西镇巴县下寒武统下部灰岩中处理出来的保存精美完好的双瓣壳微体化石,经电子探针的成分分析,电子显微镜及光学显微镜下的形态构造研究及薄片研究,证明是一类最古老的放射虫化石。基于这些早寒武世标本的壳质成分及形态构造特点,建立了始小贝虫属(Eoconcharium)和始小贝虫科。     

3Cr2W8V钢复合热处理强韧化及提高热疲劳抗力的研究

对３Ｇｒ２Ｗ８Ｖ钢进行了几种复合热处理，从而显著提高其强韧度及热疲劳性能，但常 温强韧化并不一定也提高热疲劳性能。采用较高温度淬、回火（最终热处理）的复合热处理，获 得较为热稳定的组织，既可提高热疲劳性能，电可提高常温的强、韧度。     

3Cr_2W_8V钢的热疲劳及其热疲劳硬化和软化

用扫描电镜及显微硬度计分别对热疲劳试样的热疲劳裂纹的萌生及扩展进行精心观察，及裂纹尖端前沿显微硬度分布进行细致的测量，在试验基础上提出了热疲劳裂纹的萌生、扩展以及裂纹尖端前沿热疲劳硬化、软化的机理．     

谈幼师钢琴的启蒙教学

本文从健康的学习心理,基本技能技巧,科学思想方法三个方面论述了对幼师钢琴教师实施启蒙教学问题。     

DISCOVERY OF EARLY CAMBRIAN RADIO-LARIA AND ITS SIGNIFICANCE

The well-preserved bivalved microfossils collected from the Lower Cambrian limestone at theXiaoyang section in Zhenba, Shaanxi, have proved the oldest known radiolarians by meansof the electron probing analysis and morphological study under the electron scanning miroscopeand the observation of the thin section. The present discovery has shaken the theory thatThaeodaria originated from Spumellaria. Unlike the Mesozoic and Cenozoic radiolarians that areplanktonic, the Cambrian ones lived as benthos. On the basis of the chemical composition andmorphological features of these radiolarians a new genus Eoconcharium and a new family Eocon-chariidae are erected.