Windows钩子技术的研究与应用

综述了Windows平台下钩子函数的特点及应用.在Windows消息机制下,深入讨论了利用Windows钩子函数,进行嵌入式程序设计的原理及方法,并给予相应的简略实现过程.由目前嵌入式硬件迅速发展的前景,利用钩子,作了用软件来模拟硬件的有益尝试.     

激光雷达技术的发展及其在大气环境监测中的应用

评述了激光雷达系统的特点、分类、发展趋势及其在大气环境探测中的应用，重点讨论了利用激光雷达对大气污染物、大气构成和气象要素等进行垂直方向的连续、实时、快速监测，了解其三维空间分布和动态变化，为环境保护和经济发展政策的制定提供依据。     

EM技术在我国水环境保护中的应用研究进展

对EM技术在我国水环境保护中的应用情况进行了综述,重点介绍了EM技术应用于废水处理领域的研究进展,同时还展望了将来的应用及研究前景.     

疏水性交联聚合物微球与AP-P4的复合性能

考虑海上稠油油藏严重非均质性和海上平台寿命短、大井距开采的情况,也为解决疏水缔合聚合物在长时间高温、高盐度和高剪切条件下分子间疏水缔合比例降低问题,选择疏水性交联聚合物微球与疏水缔合聚合物进行复合.通过黏浓性质、抗剪切性能、填砂管封堵实验和人造岩心驱油实验,发现复合体系中微球能够与聚合物发生疏水缔合作用,改善聚合物在高温下的流变性能和抗剪切性能;且复合体系兼具交联聚合物微球的深部调剖和聚合物的增黏驱油性能,封堵性能和驱油效果均优于单纯聚合物驱.由于微球和AP-P4之间的疏水缔合作用使两者具有较好的复合效果,为改善聚合物驱提供新方法,为研究微观机理和指导聚合物驱奠定基础.     

太阳能腔式吸热器光热转换特性及其在油田上的应用

以油田规模化利用太阳能为背景,建立基于蒙特卡洛射线踪迹法的腔式吸热器光热转换物理模型和数学模型,通过数值模拟计算腔式吸热器的热流密度分布特性,设计一种新型太阳能腔式吸热器,结合油田应用对太阳能腔式吸热器出口水温进行计算.结果表明,新型太阳能腔式吸热器的热流密度分布基本呈正态分布,在太阳辐射强度为1100W/m2,最大辐射热流为0.22MW/m2时,系统实际聚光比为200,吸热器出口水温为50.2e,能够满足油田应用需求.     

三元复合驱采油污水阻垢缓蚀剂电化学分析

研制适用于三元复合驱采油污水工况条件下的MPM固体缓蚀阻垢剂,分析三元复合驱采油污水中MPM的电化学特性.结果表明:随着温度增加,20#钢在采油污水的腐蚀速率呈增加趋势,极化曲线显示钝化区表面材料在表面高温下处于钝化状态,产生的钝化膜能够降低腐蚀速度.在阻垢缓蚀剂质量浓度相同的情况下,不同温度的电化学阻抗谱在高频区出现容抗弧,显示优良的缓蚀性能.不同质量浓度MPM极化曲线表明,缓蚀率随MPM质量浓度的增加而增大,MPM极值质量浓度为80mg/L.污水体系中的Ca2+、Cl-对缓蚀率产生影响.MPM适用于高质量浓度Ca2+的三元复合驱采油污水处理.     

GIS在中国旅游资源研究与应用中的现状及趋势

随着现代信息技术的不断发展,GIS在旅游研究与应用愈来愈深入。目前,GIS已经广泛的应用到旅游资源研究中,尤其在旅游资源空间分类、评价、旅游规划、旅游资源管理、旅游开发利用等方面取得了较大的进展。首先,本文综述了近些年来GIS在旅游资源研究中的文献资料,研究发现GIS空间分析理论与方法在旅游资源研究与开发中的应用较为广泛,但在旅游资源认知、分类及评价等方面仍存在一些尚未解决的问题。其次,在总结前人和课题组研究成果的基础上,对旅游资源认知、分类与标准化理论进行了相关论述。通过梳理GIS建模技术与空间分析方法在旅游资源信息提取与分析、旅游资源评价、旅游资源开发规划等相关研究成果中发现,旅游资源研究方法已从定性描述走向定量模型,应用成果不断增多,涉及综合评价、空间结构优化、空间布局与选址、空间发展趋势预测、空间利用规划等方面。最后,提出了未来在旅游资源知识模型、旅游资源图谱、旅游资源多维仿真以及旅游资源大数据等方面的相关展望。     

基于SOA的数据服务中间件的研究与实现

农业信息化建设过程中,各信息系统数据源的异构性、分布性和自治性限制了农业信息资源的有效共享。为了解决这一难题,结合面向服务体系结构和Web服务技术,设计一种可以共享普通数据,地理信息系统空间数据和移动设备通过全球移动通讯系统传输的数据的服务中间件,并成功应用于海南热带农业信息服务系统的开发应用中。通过实际使用证明,该中间件有效地解决了该地区农业信息资源的共享问题。     

定量荧光录井技术在胜利油田油气勘探中的应用

为了更好的发现轻质油和有效的消除特殊钻井条件下钻井液中大量混入有机添加剂对荧光录井的影响,国内外录井界都在尝试一种新的录井方法———定量荧光录井技术。本文介绍了定量荧光录井技术产生的背景,检测原理和技术特点,重点介绍了定量荧光录井技术评价油水层的方法,通过近2年的试验性应用,定量荧光仪具有较高的检测灵敏度和较好的推广应用前景。     

Research on infiltration clogging effect and its application prospect in anti-seepage project

Clogging effect, as a new concept in geological engineering, is a phenomenon of permeability decreasing under seeping in reservoir dam foundation of the alluvial and diluvial deposits with deep and thick layer, coarse particle and high permeability in mountains-gully rivers of Tibetan Plateau. A clogging infiltration instrument has been designed successfully and a series of simulation tests have been done. Based on large amounts of data, it is confirmed that the existence of the clogging effect and the law of infiltration clogging is found out. Three indexes are proposed such as ＂optimal size of particle＂, ＂optimal size range of particle＂ and ＂characteristic pore＂, which are closely related with effect of infiltration clogging. The concept and results can offer a new idea to solve problems on anti-seepage of dam foundation in mountains-gully rivers environment and to study artificial clogging, meanwhile supplement of the concept of seepage deformation.     

Research on infiltration clogging effect and its application prospect in anti-seepage project

Clogging effect, as a new concept in geological engineering, is a phenomenon of permeability decreasing under seeping in reservoir dam foundation of the alluvial and diluvial deposits with deep and thick layer, coarse particle and high permeability in mountains-gully rivers of Tibetan Plateau. A clogging infiltration instrument has been designed successfully and a series of simulation tests have been done. Based on large amounts of data, it is confirmed that the existence of the clogging effect and the law of infiltration clogging is found out. Three indexes are proposed such as "optimal size of particle", "optimal size range of particle" and "characteristic pore", which are closely related with effect of infiltration clogging. The concept and results can offer a new idea to solve problems on anti-seepage of dam foundation in mountains-gully rivers environment and to study artificial clogging, meanwhile supplement of the concept of seepage deformation.     

真实感云的快速渲染算法的研究与实现

云是自然场景最常见的自然现象,然而其不规则的外观和复杂的运动使云的模拟难度很大。在分析和研究了元胞自动机建模方法的基础上,采用元胞自动机生成云的初始模型,通过billboard的自转简化云的运动算法,并将单向散射与多重散射相结合的方式构造云的光照模型。通过该方法提高了云渲染的效率,同时满足了云场景的真实性。实验结果表明,该算法能以较高的帧率实现云的仿真效果同时不失真实性。     

交际教学互动作用的分析、研究与探讨

阐述了英语交际教学中，教学双方的锐意进取不仅能保证外语教学的顺利进行，而且还能有效促进大学英语教学，提高教学质量。详细研究了互动作用及非语言因素对教学的影响。     

吉林省黑土区土壤--作物系统Cd元素转化积累研究

在吉林省黑土区系统的野外调查和土壤及玉米籽实样品采集、测试的基础上,采用地球化学分析方法及SPSS技术,研究了Cd元素的土壤地球化学特征,及其在土壤和作物籽实中的含量特征和相关性,用以揭示Cd元素在土壤-作物系统中的转化累积特征及影响因素,为粮食安全服务。研究表明：吉林省黑土区Cd元素全量高于吉林省及全国土壤背景值,但不存在污染,籽实中Cd含量低于国家安全标准。土壤中Cd元素有效态转化程度较高,受其全量控制,同时Zn、 Cu及P元素有效量对Cd转化的作用明显,偏酸性土壤更利于Cd元素的转化。玉米籽实对Cd吸收程度较低,主要取决于其自身的生物特性, Zn元素缺乏可能导致玉米籽实对Cd元素吸收增加。     

Research on changes and circulations of sea-ice in Eurasian in recent 50 years

1 Introduction Polar region in north is the large source of arctic mass. As an importantmember of cli- matic system, sea-ice and its variation impact on intensity and extent of northern cold air. With the stronger influence of greenhouse-effect in latest5…     

黄河三角洲盐渍土区土地整理实施及绩效评价

该文以垦利县永安镇五村片省级土地整理项目为例,在对土地整理规划设计、实施管理和效益评价的基础上,提出了黄河三角洲盐渍土区土地整理项目绩效评价的重点内容、主要指标和基本思路,对于丰富黄河三角洲盐渍土区土地整理理论,规范和指导黄河三角洲盐渍土区土地整理实践具有重要的指导和现实意义。     

Improved AHP method and its application in lake environmental comprehensive quality evaluation a case study of Xuanwu Lake, Nanjing, China

The relative importance of each pollution factor in analytical hierarchy process (AHP) method comes from pooling expert opinions in general. Because expert opinions are based on information and judgment criteria, determining their weight may lead to uncertainty.. Therefore, an improved AHP method had been developed. The process of the improved AHP method involved four key procedures. The weights of pollution factors were completely related to the objective monitoring data through the standardization of these procedures. The environmental comprehensive quality of water and sediment of Xuanwu Lake, Nanjing, China had been evaluated. The environmental quality comprehensive indices (EQCI) of the water in 1991-1995 and 1996-2000 were 3.32 and 1.85, respectively, indicating that the water quality improved. The EQCI of the sediment in 1995 and 2000 indicates that the sediment contamination decreased from 1995 to 2000. Such results agreed with the fact that the lake had been under comprehensive control. However, with the classical AHP method, the EQCI of the sediment in the northwestern part of the lake may have indicated that sediment contamination increased from 1995 to 2000. The discrepancy may have resulted from the judgment difference of the experts. The improved AHP method can avoid arbitrariness of subjective judgment and can reflect the real influential factors of environment pollution in different periods or regions.     

Method for evaluating the degrees of land use sustainability of mountainous county and its application in Yunnan Province,China

The evaluation of sustainable land use is the key issue in the field of studying the sustainable land utilization. In general analysis, the sustainable land use is evaluated respectively from its ecological sustainability, economic sustainability and social sustainability in China and other countries in recent years. Although this evaluation is an important work, it seems insufficient and hard to comprehensively reflect the whole degree of land use sustainability. Thus, to make up this deficiency, this paper brings forward the evaluation indexes, which make it possible to quantitatively reflect the whole degree of land use sustainability, namely, the concept of ＂degrees of overall land use sustainability＂ （Dos）, and research and measurement development of the method of and calculation in Dos. Taking the evaluation of the degree of land use sustainability in county regions of Yunnan Province as the actual example for analysis, results are basically as follows：
1） The degree of land use sustainability （Dos） is the ration index to organically and systematically integrate the degree of ecological friendliness （DeF）, the degree of economic viability （Dev） and the degree of social acceptability （Dsa）, able to comprehensively reflect the whole sustainability degree of regional land use
2） Based on the value of Dos, the grading system and standard for the sustainability of land use may be established and totally divided into five grades, namely, the high-degree sustainability, middle-degree sustainability, low-degree sustainability, conditional sustainability and non-sustainability. Meanwhile, the standard for distinguishing sustainability grades has also been confirmed so as to determine the nature of sustainability degrees in different grades. This makes the possibility for the combination of nature determination with ration in research result and provides with the scientific guideline and decision-making gist for better implementation of sustainable land use strategy.
3） The pract     

利用张衡一号卫星电场数据研究吉林松原、河北唐山MS5.1地震前后空间电场时空演化特征

利用我国第一颗电磁监测试验卫星张衡一号电场探测仪（EFD）载荷记录到的ULF/ELF频段电场功率谱密度（PSD）数据,限制Dst≥－30 nT和K_p＜3排除空间磁环境扰动后,分4个频段对2020年唐山古冶M_S5.1地震和2019年吉林松原M_S5.1地震前后空间电场时空演化特征进行研究。结果发现,2020年唐山古冶M_S5.1地震4个频段扰动幅度均显示出震前先抬升至最高点超过2倍均方差,而后在下降过程中发震,震后恢复的规律,且第2频段异常尤为明显;4个频段扰动幅度时间序列特征相似,且震前均超过2倍均方差。2019年吉林松原M_S5.1地震不同频段的扰动幅度时间序列特征不同,仅有第2频段超过2倍均方差。2次地震均在第2频段（371~879 Hz）出现震前异常扰动,认为该频段是地震异常提取的优势频段。     

高新技术在高速公路工程可行性研究中的应用

本文重点论述了运用3S等高新技术对高速公路工程可行性的分析和应用实例,研究表明这是一经济有效的技术途径。