播种期对栽培甘草越冬性及根系生长特征的影响

甘草不同播种期的试验研究表明：甘草的适宜播种期较长,4月下旬至8月初播种都能较安全地越冬,但4月下旬至5月中旬播种完全安全,越冬率达100%,6月上旬至8月初播种的甘草抗寒能力有所下降,有一部分植株在越冬时死亡,但越冬率仍在90%以上。不同播种期播种的甘草越冬后植株的地上茎和根系都能正常生长发育,而且播种期晚的甘草在根长和根粗生长特征上表现出“追长”和“追粗”效应,光合产物也有明显向根系转移的特征。     

地震台供电系统的探讨与实践

"十五"项目实施中,对于地震台站的供电系统的建设引起了工程实施技术人员的重视.主要问题是如何构建一套科学的、合理的供电系统以保障地震台系统的连续可靠运行.     

Estimation of potential distribution of gas hydrate in the northern South China Sea

Gas hydrate research has significant importance for securing world energy resources, and has the potential to produce considerable economic benefits. Previous studies have shown that the South China Sea is an area that harbors gas hydrates. However, there is a lack of systematic investigations and understanding on the distribution of gas hydrate throughout the region. In this paper, we applied mineral resource quantitative assessment techniques to forecast and estimate the potential distribution of gas hydrate resources in the northern South China Sea. However, current hydrate samples from the South China Sea are too few to produce models of occurrences. Thus, according to similarity and contrast principles of mineral outputs, we can use a similar hydrate-mining environment with sufficient gas hydrate data as a testing ground for modeling northern South China Sea gas hydrate conditions. We selected the Gulf of Mexico, which has extensively studied gas hydrates, to develop predictive models of gas hydrate distributions, and to test errors in the model. Then, we compared the existing northern South China Sea hydrate-mining data with the Gulf of Mexico characteristics, and collated the relevant data into the model. Subsequently, we applied the model to the northern South China Sea to obtain the potential gas hydrate distribution of the area, and to identify significant exploration targets. Finally, we evaluated the reliability of the predicted results. The south seabed area of Taiwan Bank is recommended as a priority exploration target. The Zhujiang Mouth, Southeast Hainan, and Southwest Taiwan Basins, including the South Bijia Basin, also are recommended as exploration target areas. In addition, the method in this paper can provide a useful predictive approach for gas hydrate resource assessment, which gives a scientific basis for construction and implementation of long-term planning for gas hydrate exploration and general exploitation of the seabed of China.     

高温高压岩石粒间熔体（和流体）形态学及其研究进展

高温高压岩石粒间熔体（和流体）形态学是现代岩石学的前沿领域之一。它主要研究高温高压下低程度部分熔融（或含少量流体）岩石中,矿物颗粒之间熔体（或流体）形态特征、连通性,以及与周围矿物相互关系的科学。研究中较多地借鉴了材料科学的研究方法,与界面物理化学密切相关。高温高压下地幔岩石粒间熔体（和流体）形态学的研究为探讨地幔部分熔融作用、软流圈和地幔交代作用的成因提供了重要的实验依据,已成为地球深部研究的重要手段之一。目前该学科还没有为我国广大地学工作者所熟悉。为此,对高温高压岩石粒间熔体（和流体）形态学的基础理论、实验方法,以及某些实验研究结果进行简要介绍,从而为读者对该学科的了解提供一些便利。     

相变前的热力学平衡态对铁电液晶排列的影响

本实验选用ZLI-3654型铁电液晶(FLC)以及SE-3140型取向剂制备FLC器件样品,通过改变FLC相变过程中的降温速率以及相变前的热力学平衡态来研究FLC相变前的热力学平衡态对FLC排列的影响,共进行了十组实验.实验后,将FLC器件静态对比度进行比较,得出手性向列相到近晶A相(N^*-SmA)相变前的热力学平衡态对FLC实现均匀排列起着极其重要的作用的结论.实验结果表明:器件的静态对比度可高达620 ∶1, N^*-SmA相变前的热力学平衡态有利于形成高对比     

博兴县多措并举大力推进集约节约用地

一是大力推进企业闲置土地处置。加强建设用地供应监管，采用收回、收购、整合等手段，积极盘活原县油棉一厂、三厂、兴粮玉米等因企业破产或结构调整形成的闲置和低效用地。截至目前，全县共盘活存量建设用地51．80hm2，挖潜改造成效明显。     

太平洋CC区及周边多金属结核分布及资源量预测

选取了太平洋克拉里昂-克利帕顿断裂带(简称CC区)以及邻近海域作为研究区,对该区多金属结核的分布和资源量进行了估计.运用数学地质方法和GIS空间分析技术,将已勘探区作为训练区,建立资源目标信息和区域证据图层之间的关系模型;将该模型用于未勘探区,得到整个CC区及周边海区的多金属结核的空间分布和潜在资源量.预测结果和勘探结果对比表明,预测结果具有一定的可靠性,所选方法对研究区多金属结核资源估计具有可行性.该评价方法或结果为将来未调查区多金属结核勘探工作提供了技术或参考靶区.