不动产地籍和产权登记信息系统

介绍了一种涵盖地籍管理过程且在实施过程中简单易行而有效的信息系统,为土地资源的合理开发利用和地籍信息的动态管理了新的途径。     

粘土-有机树脂超吸水复合材料的制备及性能研究

超吸水材料是一种吸水能力特别强的物质,能够吸收自身重量的几十倍甚至几千倍的水;吸水后,在加压的情况下也不脱水或脱水很少。因此,又称它为高保水材料。由于它既具有独特的吸水和保水性能,又具备高分子材料的优点,从而在国民经济众多领域中获得了广泛的应用［１～３］,从１９６１年美国将其开发应用［３］至今,一直保持着良好的发展势头。本文制备了粘土淀粉接枝丙烯酰胺超吸水复合材料。通过Ｃｅ４＋引发,使淀粉、粘土接枝丙烯酰胺;以Ｎ,Ｎ’亚甲基双丙烯酰胺作为交联剂使接枝物适度交联;交联产物经水解、洗涤、脱水、干…     

Sedimentary cycle pattern and stacked style of sand-body of the Lower Jurassic Sangonghe Formation in belly of Junggar Basin

The coarse grain braided river delta in Jurassic Sangonghe Formation of Junggar Basin formed the main Mesozoic reservoir system. At present,there are obvious different opinions on the sedimentary cycle characteristics of Jurassic Sangonghe Formation,and there is a lack of research on the driving mechanisms of sedimentary cyclicity,which leads to a great dispute on the stacked style of sand-bodies. Using 38 wells coring and logging data in the belly of Junggar Basin,based on principles and methods of sedimentology and sedimentary basin analysis,the characteristics of sedimentary cycle in Sangonghe Formation are systematically analyzed. The stacked style and combination rule of sand-bodies are studied in detail within sedimentary cyclic framework. The characteristics of basement subsidence and multi-stage uplifting during the Early Jurassic of Junggar Basin are discussed,so as to clear the driving mechanisms of positive sedimentary cycle. The Sangonghe Formation in the study area is divided into four system tract level positive cycles with no reverse cycle deposition,which reflects the sedimentary characteristics of slow lacustrine transgress and fast lacustrine retrogress. The sand-bodies in the braided river delta front of the Sangonghe Formation show five stacking patterns: Strong erosion of superimposed sand-body by subaqueous distributary channel,weak erosion of superimposed sand-body by subaqueous distributary channel,superimposed river-mouth bar on subaqueous distributary channel,distal bar-blanket sand assemblage,beach bar sand-body. The first cycle is the intermittent distribution of beach bar sand-bodies. The second cycle includes continuous distribution of strong erosion of superimposed sand-body by subaqueous distributary channel,weak erosion of superimposed sand-body by subaqueous distributary channel,and superimposed river-mouth bar on subaqueous distributary channel. The third cycle is composed of relatively continuous distribution of weak erosion of superimposed sand-body by subaqueous distributary channel and distal bar-blanket sand assemblage. The fourth cycle is scattered distribution of beach bar sand-body. It is possible because of the slow subsidence and intermittent rapid uplift of the basement of Junggar Basin that regressive superposition and the scour interface between each sedimentary cycle are formed.     

龙卷风的风强分析与极值推断

本文采用1955－1997年影响盐城市的龙卷风资料,按富士达F等级定义龙卷风风强分类级别,对盐城市受袭击点的破坏程度进行风强分级,并分析各个时段龙卷风风强等级的频数。应用耿贝尔极值分布理论,对影响盐城市的龙卷风风速极值进行统计推断,获得1％风险度龙卷风风速极值,以及各种特定重视期间的极值。     

多层多跨部分预应力混凝土框架结构抗震延性设计方法的探讨

本文在前人研究基础上,对部分预应力混凝土框架结构延性二次设计作了进一步研究,将塑性铰出铰顺序引入计算。并用这种方法对部分预应力混凝土框架结构进行了分析,由此对部分预应力混凝土框架结构抗震设计提出一些实用建议。     

西天山阿希晚古生代破火山口构造及其控矿意义

阿希破火山口构造位于西天山博罗科努山早石炭世吐拉苏—也里莫墩火山岩带西部,呈近等轴状,周边被环状断裂所限,南北直经２.６kｍ,东西向宽２.４kｍ,面积约６kｍ2。火山口缘环状、放射状裂隙、火山岩相的配置格局、地球物理场特征等都十分清晰地显示了破火山口的特征。大型阿希金矿产于破火山口缘环状断裂内,显示了与破火山口形成的密切成因联系。     

青海共和盆地下白垩统烃源岩地球化学特征及其生油意义

我国西北大部分地区在早白垩世处于挤压为主的构造环境,但共和地区处于伸展的构造环境,发育了巨厚的下白垩统湖相沉积。我们首次在共和盆地下白垩统发现了一套２５８．１５ｍ 厚的烃源岩。这一发现改变了以往西北白垩系烃源岩仅分布在祁连－秦岭以北的观点, 这对于研究我国西北地区白垩系烃源岩的分布和油气田的形成具有重大意义。共和盆地下白垩统从下到上分为万一段、万二段、万三段、万四段。万一段和万四段是炎热干旱气候条件下形成的红色沉积, 基本没有生烃能力。万二段烃源岩是一套炎热潮湿气候条件下形成的浅湖－半深湖相沉积, 烃源岩有机质丰度达到了中到好烃源岩的丰度标准, 干酪根类型以Ⅰ２ 型为主。该烃源岩在Ｋ２ 早期（９０．０１Ｍａ） 进入生油门限, 开始生油, 从Ｋ２ 晚期（７４．１１Ｍａ） 以来,一直处于大量生油的成熟阶段。下白垩统万三段沉积时期, 水体时深时浅, 暗色泥岩和红色泥岩交替出现。暗色泥岩属于中等烃源岩, 其有机质类型主要为Ⅱ型。它在晚白垩世 （７８．０２Ｍａ） 进入生油门限, 但一直到第四纪 （１．５Ｍａ） 才进入大量生油的成熟阶段。共和盆地下白垩统烃源岩发育, 具有形成中小型油气田的可能性。     

浙江丽水Ⅰ盆地白垩纪古地磁学研究

在浙江丽水Ⅰ盆地白垩系采集古地磁样品０１个,经测试得出晚白垩世末期的古地磁偏角为２４．７５°,古地磁倾角为４８．１４°,古纬度为２９．１６°Ｎ,为中国东部晚白垩世末期边南移、边顺时针旋转的区域性构造运动提供了证据。     

弹簧钢球式安全离合器在钻机中的应用

分析了钻机在过程中经常发生机械事故的主要原因,提出了解决这一问题的方法,即在钻机内的传动轴上安装弹簧钢球式安全离合器在钻机中的经过反复试验论证辽一方法的可行性。     

用VB语言实现地震动态演示

Ｖ Ｂ 编程语言提供了图形环境,能可视化的设计窗体和控件。本文介绍了应用该设计语言的特性如何实现地震资料的动态显示过程。