一种基于拍卖理论的移动Agent资源分配模型

描述了 1种以区间值为价格的移动 Agent资源底价密封拍卖模型 ,并赋予资源所有者参与价格制定的权利     

粒度分析在塔克拉玛干沙漠研究中的应用

本文重点探讨了塔克拉玛干沙漠的风成沙粒度组成特征及其与物源的关系，同时对沙丘的下伏地层沙、现代河流沙及丘间地沙的粒度组成也进行了对比。通过对该沙漠第四纪沉积物的粒度分析，证实了风成沙的粒度分布以极细沙为主，不含粗沙，粉沙含量极小；粒度组合、分选主要受营力和源区物质制约，结果使粒度空间分布形成格局。总之，通过粒度分析得到一系列量化指征，可为研究风沙流运动，探讨沉积环境和改造沙漠、发展沙产业提供理论依据。     

Biodegradability of the Anti-tumour Agents 5-Fluorouracil,Cytarabine, and Gemcitabine: Impact of the Chemical Structure and Synergistic Toxicity with Hospital Effluent

Most anti-tumour agents are known to be carcinogenic, mutagenic, teratogenic, embryotoxic or fetotoxic. Only little is known about the environmental impact of pharmaceuticals. Unmetabolized active substances are excreted and will show up in municipal wastewater. Therefore, we examined the biodegradability of the widely used anti-tumour agent 5-fluorouracil (5-FU), also as an example for assessing the impact of hospital effluent on the biodegradation of a test compound. The biodegradability of the structurally similar anti-tumour agents cytarabine and gemcitabine was also examined. Test systems used were the closed bottle test (OECD 301 D) and the modified Zahn-Wellens test (OECD 302 B). 5-FU was not biodegradable in the closed bottle test (CBT) nor in the Zahn-Wellens test (ZWT). At the highest concentration of 5-FU, with hospital effluent an inhibition of the degradation of substances present in hospital effluent was observed, probably as a result of a synergistic effect by 5-FU with antibiotics present in hospital sewage. Gemcitabine was biodegraded 42% in the CBT. The prolongation of the test period to 40 days only improved the result to 45%. In the ZWT, the biodegradation of gemcitabine was 50%. Cytarabine was partially biodegraded in the CBT (50%), but only after an adaptation period of 20 days. After a test prolongation to 40 days, the degree of biodegradation was 80%. In the ZWT, the biodegradability was > 95% after only a few days.     

两种常用漂白剂对江篱和鸡毛藻琼胶质与量影响的研究

本文系统研究了次氯酸钠和高锰酸钾漂白剂对两种江篱和鸡毛藻制造琼胶质与量的影响。探索了漂白剂浓度,处理时间与琼胶质与量的关系,选出了较佳的漂白方法及条件。试验结果表明,采用选定的漂白方法,既保证了产品的质与量,又用最少量的辅料,达到降低成本,提高经济效益的目的。     

Urease-Hemmtest für wirkungsbezogene Untersuchungen der Bindungsformen von Kupfer in Wässern und Bodeneluaten

Urease Inhibition Test for Effect-related Investigations of Copper Speciation in Water and Soil Extracts In 80 different water samples, the inhibition effect of cupric ions was measured by application of a simple urease inhibition test. In relation to the total copper concentration, the inhibition permits an effect-related classification of drinking water, rain water, spring water, surface water, leakage water, wastewater, and soil extracts. Drinking water contains high parts of cupric ions in the free hydrated form. Their copper content results in high urease inhibition and is caused by using copper pipes in house plumbing. In leakage water, wastewater, and soil extracts, cupric ions are mainly complexed by organic compounds in the sample matrix. Hence, the inhibition effects are low. In soil extracts, the urease inhibition increased after an UV-decomposition procedure, but a decreasing effect was observed for a surface and a drinking water sample, respectively. The chemical oxygen demand and UV-absorbance at 255 nm measured before and after the procedure were correlated to the content of organic compounds, i.e., humic acid. In most samples, the organic matrix was not decomposed completely. The oxidizing decomposition apparently forms further complexing agents, which suppress the inhibition effect of cupric ions. In the rain water samples investigated, the content of organic compounds depended on rain intensity. The chemical oxygen demand and UV-absorbance, respectively, were low for rain water collected during strong rain periods and increased with decreasing rain intensity. The rain water trickled over sheet-lead roof showed an increase of urease inhibition compared with the simultaneously collected rain. Consequently, a decomposition of organic matrix could be demonstrated in rain water by use of the urease inhibition test.     

Agent-based simulation for biogas power plant potential in Schwarzwald-Baar-Kreis,Germany: a step towards better economy

Over the past decade, political framework in the energy sector all over the world has provoked a strong focus on the production of renewable energies. The study focuses on agent-based modelling approach to identify the suitable and economical distribution of biogas power plants over time in the area of interest. For sufficient supply of biomass (silage maize) on a regional basis to run biogas power plants economically and smoothly, different thematic layers with defined rules for Agent Analyst used to simulate the future installations of power plants. In conjunction with ArcGIS, the Agent Analyst software generates simulations that prove the robustness of the model in finding the suitable location of power plants. The resultant location from the model is analysed in different aspects. The designed methodology could be implemented in other areas with minor edits as per requirement of the area.     

代建制在浙江美术馆工程中的实施体会

代建制是近年来政府投资项目推行的管理模式,本文通过代建制在浙江美术馆项目两年多的实践,主要阐述在实施过程中的体会及体现的优势,以推动代建制的健康发展。     

多粒度时空对象动态行为表达模型与方法研究

对具有动态变化特征的空间实体的描述,除了表达其内在属性外,还应包括动态行为.传统GIS把空间对象内在属性和动态行为分开建模本质上是一种基于地图的静态建模思想,而多粒度时空对象把行为能力作为对象的固有属性,是区别于其它对象的一个重要特征,使得全空间信息系统能够描述具有认知和行为能力的"活"的地理实体.本文针对具有规则化动...     

标记乳糖基白蛋白SPIO作为磁共振肝细胞受体显影剂的实验研究

目的是探讨标记乳糖基白蛋白的超顺磁性氧化铁粒子（ＬＡＣ－ＨＳＡ－ＳＰＩＯ）作为配体与肝细胞膜去唾液酸糖蛋白受体（ＡＳＧ）特异性结合可能性;评价ＬＡＣ－ＨＳＡ－ＳＰＩＯ增强磁共振受体成像对大鼠微小肝癌灶的显示能力。方法：将Ｆｅ３＋Ｆｅ２＋混合液与ＬＡＣ－ＨＳＡ在碱性条件下制备出ＬＡＯ－ＨＳＡ－ＳＰＩＯ;应用　二乙基亚硝酸胺建立大鼠肝癌模型;电镜及Ｐｅｒｌｓ（普鲁士蓝）染色,观察ＬＡＣ－ＨＳＡ－ＳＰＩＯ在肝组织的颁;并比较ＬＡＣ－ＨＳＡ－ＳＰＩＯ增强前后大鼠肝癌的显示情况。得到结果是（１）Ｐｅｒｌｓ染色证实有ＬＡＣ－ＨＳＡ－ＳＰＩＯ分布到肝细胞浆内;电镜下也显示肝细胞膜表面及胞浆内有电子致密ＳＰＩＯ粒子分布;（２）注射小剂量ＬＡＣ－ＨＳＡ－ＳＰＩＯ可观察到明显明显肝脏强化效果,大鼠肝癌检出率由平扫３６．８％（７／１９）提高到７８％（１５／１９,Ｐ＜００１）。结论：ＬＡＣ－ＨＳＡ－ＳＰＩＯ是一种新型的具有肝细胞ＡＳＧ受体靶向性显影剂,对提高肝脏微小瘤灶检出率有章要价值。     

对PH敏感的顺磁性造影剂—Fe—EDTA

目的探讨ＰＨ值对Ｆｅ－ＥＤＴＡ造影效果的影响。方法;配制ＰＨ梯度５０－８０的０．５和０．１ｍｍｏｌ／Ｌ的Ｆｅ－ＥＤＴＡ液,观察ＳＥ序列「ＴＲ（ｍｓ）／ＴＥ（ｍｓ）２００／１５,２５００／８０」,信号变化,结果：Ｆｅ－ＥＤＴＡ的ＭＲ信号随ＰＨ值提高而减弱。