基于Flash技术的综合电子地图集制作技术

重点介绍了基于Flash平台制作多媒体综合电子地图集的开发集成方法以及具体功能的实现。     

Fishery analysis using gradient-dependent optimal interpolation

The current lack of high-precision information on subsurface seawater is a constraint in fishery research. Based on Argo temperature and salinity profiles, this study applied the gradient-dependent optimal interpolation to reconstruct daily subsurface oceanic environmental information according to fishery dates and locations. The relationship between subsurface information and matching yellowfin tuna(YFT) in the western and central Pacific Ocean(WCPO) was examined using catch data from January 1...     

Rapid detection of virulent protease secreted by Vibrio anguillarum by dot enzyme-linked immunosorbent assay

Dot enzyme-linked immunosorbent assay （dot-ELISA）, indirect ELISA and Westem blot were performed to detect the virulent protease secreted by Vibrio anguillarum which was isolated from the diseased left-eyed flounder, Paralichthys olivaceous. Sensitivity results showed that dot-ELISA is a more sensitive, rapid and simple technique for the protease detection. The minimal detectable amount of protease is about 7 pg in the dot-ELISA test, while 7.8 ng in the indirect ELISA and 6.25 ng in the Westem blot respectively. Protease could be detected 2 h after incubation of V. anguillarum in the 2216E liquid medium but enzyme activity was very low at that period. From 6 to 12 h, the amount and enzyme activity of protease increased markedly and reached maximum at stationary phase. Analysis of serum samples periodically collected from the infected flounders showed that after 2 h of infection by V. anguillarum, the pathogenic bacteria could be detected in the blood of the infected flounders but no protease was found. It was 5-6 h after infection that the protease was detected in blood and then the amount increased as infection advanced. Quantitative detection of protease either incubation in the medium or from the blood of infected flounders could be accomplished in virtue of positive controls of quantificational protease standards （＂marker＂） so that the alterations ofprotease secretion both in vitro and in vivo could be understood generally. In addition, the indirect ELISA and dot-ELISA were also performed to detect V. anguillarum cells. Results indicated that the sensitivity of indirect ELISA to bacteria cells is higher than that of the dot-ELISA, and that the minimal detectable amount is approximately 10^4 cell/mL in the indirect ELISA, while 10^5 cell/mL in the dot-ELISA.     

试论工程项目投资控制

工程项目投资控制是工程项目管理的重要内容。如何减少投资，并最大限度地提高企业投资收益，已为广大房地产开发商及项目管理者热切关注，即为热点又是难点。长期以来，人们总是把投资控制放在审查施工单位的进度款和决算方面，然而这种控制存在明显的缺陷。因为在施工过程中，经常发现那些因设计不科学、不合理脱离实际而造成的投资浪费，且又无法得到纠正的情况，从而使工程投资控制限于十分被动的局面。     

On the Systematic Position of Eosipterus yangi Ji et Ji, 1997 among Pterodactyloids

1 Introduction Eosipterus yangi is the first pterosaur found from western Liaoning Province (Ji and Ji, 1997). Since then, more and more pterosaurs have been reported (Ji and Ji, 1998; Wang and Lü, 2001; Wang et al., 2002, 2005; Wang and Zhou, 2003, 2004; Lü, 2003; Ji et al., 2004; Lü and Ji, 2005a, b; Dong and Lü, 2005; Lü and Yuan, 2005; Lü and Zhang, 2005; Lü et al., 2006). Because Eosipterus yangi lacks skull, it is difficult to resolve its relationships to other pterodact…     

辽西朝阳地区下白垩统九佛堂组一新的离龙类

根据发现于辽宁省西部朝阳地区下白垩统九佛堂组的离龙类一具有头骨的不完整骨架，建立Simoedosauridae科中的一新属新种：朝阳辽西龙：Liaoxisaurus chaoyangensis gen．etsp．nov．。朝阳辽西龙的下颌缝合部短，小于下颌长度的20％，牙齿齿槽近似正方形，区别于任何已知的进步的离龙类。它吻部相对较短，占头骨总长的49．8％。     

地下水水动力弥散问题中弥散度的单孔确定方法研究

本文提出了利用单孔进行弥散实验,确定地下水含水层弥散度的新方法,给出了数学模型、求解过程及方法。提出了用计算机自动处理求得最佳参数的直线回归法与非线性迭代法相结合的方法。不但进行了理论上的详细推导,而且通过实例进行了验证,结果很好。本文提出的方法原理通俗易懂,计算过程简单,易于实行,成本低,具有重要实际意义。     

基于scPDSI的东北地区气象干旱时空特征分析

干旱已成为全球陆地生态系统面临的普遍问题,其发展具有明显的地域特征,了解区域干旱的时空分布特征是防灾减灾、应对气候变化的基础。基于scPDSI数据集,采用经验正交函数和统计分析方法,分析2002-2017年东北地区气候干湿状况的时空分布和演变特征,探讨了干湿状况的季节变化对年际变化的贡献率,结果表明:东北地区4个季节的干旱面积为52.27%-62.03%,虽然季节和年际尺度的干旱均有减弱趋势,其中冬季干旱程度显著减弱,但干旱仍然是东北地区的主要气候背景;春季和夏季scPDSI的协同作用对年际scPDSI变化的贡献率达88.64%,夏季的贡献率达86.13%;东北地区的西部干旱程度高于东部的,其中呼伦贝尔草原中部和浑善达克沙地东部以严重干旱和中等干旱为主;EOF分析表明,东北地区4个季节和年度的干湿状况呈现一致的正变化趋势,高值中心主要出现在南部地区。     

豫北多时效归一化棉铃虫气象预报模式

按照棉铃虫繁育规律,将棉铃虫周年活动期划分为秋季预蛹期、越冬期、春季羽化期、夏季危害期4个阶段,分阶段选取有昆虫学、统计学意义的气象因子,通过归一化处理和加权组合,组成棉铃虫气象指数,建立多时效、归一化棉铃虫气象预报模式和分析、评价指标。结果显示：气象条件与棉铃虫发生程度密切相关,各时段预报模式的复相关系数达0.7780~0.8780,回代拟合率为96.7%,回归效果极显著。经试报应用,取得较好效果。结论认为：将诸多气象因子作无量纲化处理,不但便于因子间相互组合,还可提高模式的预报精度;将棉铃虫周年繁育期划分为秋季预蛹期、越冬期、春季羽化期、夏季危害期,突出了阶段性特点,分阶段组建预报模式,预报效果较好。对组合因子的生物学意义,有待生物学试验认定。     

汶川地震极重灾区地质背景及次生斜坡灾害空间发育规律

512汶川大地震造成大量的次生斜坡灾害,本次研究区域为汶川大地震的11个重灾区,包括汶川、北川、青川、安县、平武、茂县、江油、彭州、什邡、绵竹、理县等市县。通过对重灾区航片、卫片、雷达图像的解译研究发现,重灾区次生斜坡灾害的主要灾种表现为崩塌、滑坡以及崩塌、滑坡高速运动解体形成的碎屑流（个别地方由于水的参与表现为泥石流）以及它们堵江形成的堰塞湖。研究发现地震次生斜坡灾害的发育具有明显的丛集性规律。从区域上看,次生斜坡灾害明显呈带状,沿龙门山断裂带展布,并主要受北川映秀断裂控制。各灾种的发育在不同地段发育的规模、频率差别较大。以灾害分布面积来排序,汶川县灾害面积最大,为131.55km2,其次为北川县,为45.57km2,其余9个县（市）灾害面积相差不大,均介于6~17km2,其中理县灾害面积最小,为6.25km2。各灾种的发育在不同地段发育的规模、频率差别较大。青川县、平武县灾种主要为滑坡,汶川县、茂县、安县、理县灾种主要表现崩塌转化的碎屑流,北川的主要灾种则为碎屑流,其次为滑坡,什邡、彭州、绵竹、江油等地主要灾种为崩塌。\r\n灾种发育的这种地域性差别主要受控于地层岩性,除此而外,还与构造特征、地形地貌等因素紧密相关。研究表明：岩性对灾害种类的展布有决定性控制作用。统计发现,岩性越坚硬,崩塌、碎屑流发育率越高,滑坡则在软岩地区、较软岩地区和较坚硬区发育率最高,泥石流则在软岩地区最为发育。地形地貌对次生斜坡灾害的发育有重要影响,统计表明,崩塌、碎屑流以及泥石流在1200～2000m坡段范围内发育率最高,其次为800～1200m坡段;而滑坡则在800～1200m坡段范围发育率最高。对坡度而言,除11~20坡度范围外,崩塌和碎屑流的发育率总体具有随坡度增高而增大的特点;而滑坡和泥石流的发育率呈现典型的单峰特征,在1~20范围内发育率最大。坡向对地震次生斜坡灾害的发育影响不明显。\r\n地震次生斜坡灾害的发育规律表明,地震斜坡灾害的发生主要受控于活动构造本身,并沿活动构造呈带状展布,同时受场地条件如岩性、地形地貌等因素的强烈控制。