重庆市水资源供需预测

重庆市地处湿润地区，水资源丰富，多年平均降水量1211.9mm，径流深度650mm。预测2030年全市总需水量145.53亿m^3，水资源总量大于总需求量。但是水资源的时空分布与人类需求不一致，人类活动频繁，工业和城镇用水量增加很快，水质恶化，水资源的供需矛盾仍然存在，节约用水刻不容缓。     

喷射成形原位反应TiC/Al-Fe-V-Si复合材料的显微组织

使用X射线衍射（XRD)、光镜(OM）、电子扫描电镜(SEM)、透射电镜（TEM）等对在TiC／Al-Fe-V—Si合金中原位反应生成TiC的喷射沉积坯件的显微组织进行了分析和研究．结果表明，原位反应生成的TiC颗粒在喷射沉积过程中抑制了针状相的形成，改善了合金的显微组织，生成的TiC颗粒均匀地分布在合金基体中．     

柴油车尾气排放控制技术进展

在节能减排政策的推动下,采用稀燃技术的柴油机日益受到人们的广泛关注。针对柴油机的主要排放污染物NOx和颗粒物(PM),从燃油品质、机内净化技术和柴油车后处理技术三个方面,综述了国内外柴油车尾气排放污染控制技术研究现状;机内净化技术重点论述了进气管理技术、新型燃烧技术、燃油喷射技术、废气再循环(EGR)技术等。柴油车后处理技术重点论述了氮氧化物处理技术和颗粒物捕集技术的研究思路和进展,展望了相关技术的发展方向。     

生物结构自组装

生物大分子、复合物分子机器、细胞器、完整细胞乃至生命个体的形成, 自组装贯穿其中, 并有极其复杂的调控机制. 本文归纳分析了生物结构自组装的特点及其物理、化学和几何学原理, 并以新生肽链折叠和染色体折叠浓缩为例描述自组装的生物调控原理. 采用自组装策略, 已经开发了许多生物纳米功能结构, 如DNA平面和立体结构、DNA马达、蛋白纳米线、荧光双分子互补系统等. 研究复杂生物体系的自组装极具挑战, 可使我们更接近生命的本质, 还将为纳米科学技术和仿生学提供许多启示.     

Screening and Insert Size Analysis of Candidate C-Genome BAC Clones from Brassica napus

Thirty-two C-genome specific candidate bacterial artificial chromosome (BAC) clones were successfully screened from the BAC library by four-dimensional PCR method with the primer pairs of 75 simple sequence repeat (SSR) markers located in the nine C-genome linkage groups of Brassica napus. The screened 32 BAC clones have an average insert size of 114.2 kb with a range of 30-190 kb. They are the first set of C-genome BAC clones screened from B. napus genomic BAC library. The average insert size of this set of BAC clones presented that the constructed BAC library had a high quality. This set of BAC clones can be used as markers to identify individual chromosomes of B. napus C-genome.     

从华为、Google的经验，看青岛星火集团的发展——国有巨型企事业单位整体上市的改革路径的成效

重新规划我国科技产业的发展路径,对于我国的兴起具有重要作用。借鉴国内外企业的发展经验,我国也可建立"知识产权公共地",推动我国民营"小企业"进入航母、太空轰炸机、火星飞船等国家战略新兴科技产业,实现原有知识产权体系的大解体、大重组、大激活。     

Up—Regulation of CCR5 and CXCR4 Expression on Human Monocytes by Interferon Gamma

Chemokine receptors, mainly CCR5 and CXCR4, have been proved to be the important coreceptors in HIV-1 entry. HIV-1 disease progression is, in general, characterized by an initial predominance of CCR5 using macrophage tropic, non-syncytium-inducing (NSI) isolates, switching later to CXCR4 using T-cell tropic,syncytium-inducing (SI) isolates. How this shift occurs and how the shift can be controlled are still unclear.Since patients with rapid decline of T cell counts have constantly high levels of IFN-7 in the sera and lymphoidnodes, we investigated the influence of this cytokine on the expression of the HIV-1 coreceptors CCR5 and CXCR4 on the cell surfaces of human monocytic cell line U937 and promonocyte NB4. IFN-γ could intensively enhance the expression of both, while a low level of CCR5 expression was detected in two cell lines before stimulation. The results of semiquantitative RT-PCR also confirm the up-regulation. As the newly generated X4-strains have been demonstrated to be insensitive to chemokine in some reports, IFN-7 may play an important role in selecting CXCR4-used strains.     

考虑电压稳定约束下的无功补偿

针对电力系统电压稳定问题,利用L_1指标研究了预防电压失稳的常用无功补偿手段。就系统电压稳定性的准确获取(电压稳定指标的选择与改进)、多场景下补偿点的选取、补偿方式(并联补偿或串联补偿)的选择和补偿量的优化选取等问题进行了深入的研究．基于上述研究,提出了一种新颖的解决方案．经New England标准验证系统检验,所提方案能够给出考虑多种运行方式的最佳补偿量,并对补偿方式的选择给出定性指导,为电力系统的规划提供有益的参考．     

GNSS开放服务的监测评估

GNSS开放服务的互操作是卫星导航发展的新趋势,其服务性能将直接决定用户使用的安全和可靠性;因此,开展GNSS开放服务的监测评估已成为卫星导航系统供应商和用户关注的焦点.本文首先系统地提出了GNSS开放服务监测评估的要素和方法;根据需求,我们设计了基于全向天线、多波束天线和大型抛物面天线分别实现四重、一重逆覆盖跟踪和精细分析的国际GNSS监测评估系统(iGMAS)架构,并对全球布站方案进行了初步的论证.最后,介绍了对北斗卫星导航系统开放服务监测评估的相关工作,并初步验证了系统实现的可行性.     

Isotopic evidence for the moisture origin and composition of surface runoff in the headwaters of the Heihe River basin

We investigated the moisture origin and contribution of different water sources to surface runoff entering the headwaters of the Heihe River basin on the basis of NECP/NCAR(National Centers for Environmental Prediction/National Center for Atmospheric Research) re-analysis data and variations in the stable hydrogen and oxygen isotope ratios(δ D and δ 18O) of precipitation,spring,river,and melt water. The similar seasonality in precipitation δ 18O at different sites reveals the same moisture origin for water ...