美国“鲨鱼”隐身快艇

最近美国洛克希德-马丁公司公开了正在研制的“鲨鱼”隐身高速快艇的独特设计——造型奇特．双体船型，隐身设计．折叠结构．强大武备．多种用途。“鳖鱼”隐身高速快艇在外形和武器配备等方面借鉴了武装直升机和快艇的一些特点．被称为是武装直升机与快艇的“混血儿”。该设计可以称得上是应用高新科技成果进行舰艇跨越式创新发展的典范，在舰艇界引起很大的反响。     

城市集约用地主要有哪些指标

综观历史，“城市土地集约利用”概念的提出，实际上是借鉴了农业土地集约利用概念。     

谈谈现代地质学的思维结构

谈谈现代地质学的思维结构吴俊华，袁训红（江西地质科学研究所南昌向塘３３０２０１）ＯｎｔｈｅＴｈｉｎｋｉｎｇＳｔｒｕｃｔｕｒｅｏｆＭｏｄｅｒｎＧｅｏｌｏｇｙＷｕＪｕｎｈｕａ；ＹｕｅｎＸｕｎｔｏｎｇ（ＪｉａｎｇｘｉＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ）１...     

重点成矿区(带)化探扫面资料的深开发——以吉林老岭地区为例

文章介绍了成矿区(带)化探资料对确定找矿目标矿种、估计化探异常找矿前景等方面的应用,指出研究分带序列中不同位置元素间相关性的变化和相关元素的拓扑结构,可能为解决上述问题提供有用信息。     

优化发电能源结构的初探

从我国电力工业发展的角度，浅析了国内外发电能源结构及其变化趋势，作者认为优化我国发电能源结构、采取必要的技术措施，是实现我国电力 工业可持续发的重要途径。     

Rhombic Cell Analysis. Ⅱ. Application to the IRAS／PSCz Catalogue

Rhombic cell analysis as outlined in the first paper of the present seriesis applied to samples of varying depths and liming luminosities of the IRAS/PSCzCatalogue. Numerical indices are introduced to summarize essential information.Because of the discrete nature of the analysis and of the space distribution of galax-ies, the indices for a given sample must be regarded as each having an irreduciblescatter. Despite the scatter, the mean indices show remarkable variations acrossthe samples. The underlying factor for the variations is shown to be the limitingluminosity rather than the sampling depth. As samples of more and more luminousgalaxies are considered over a range of some 2.5 magnitudes (a factor of some 75in space density), the morphology of the filled and empty regions defined by thegalaxies degrades steadily towards insignificance, and the degrading is faster for thefilled than the empty region.     

维护农民合法权益促进农民增加收入

国土资源部门是涉农部门。土地是农民的命根子，为“三农”服务特别是维护农民土地权益、促进农民增收，是国土资源部门义不容辞的职责。回顾总结了近年来这方面的工作，指出了今后一个时期国土资源部门为“三农”服务的方向。     

Comparison of Taste Components between Triploid and Diploid Oyster

The main taste components of triploid and diploid oyster (Crassostrea gigas) were compared. Free amino acids, inosine monophosphate, succinate, trimethylamine oxide and betaine in fresh and boiled extractives were analyzed. The protein, lipids, glycogen, moisture and ash, which may affect the flavour, were evaluated. In boiled extractives, the amino acids were 394.1 mg(100g)^-1 in diploid and 183.5 mg(100g)^-1 in triploid. However, in fresh oyster extractives, they were 320.0 mg(100g)^-1 and 147.3 mg(100g)^-1 respectively. The inosine monophosphate in triploid was 44% more than that in diploid, and a little difference existed in the content of trimethylamine oxide between them. The contents of these taste components were the basis for taste flavour pattern determination.     

应用MAPGIS制作农级别基准地价图的方法探讨

本文从农级别基准地价图编制的目的和原则入手，详细介绍了用MAPGIS软件编制农级别基准地价图的方法。