体育教学与德育渗透的思考与实践

体育教学中渗透着丰富的德育内容，对于学生人格的培养、世界观的形成具有积极的作用。在体育教学中，根据学生的特点，有意识地渗透德育内容，进行生动活泼的思想道德教育，取得了良好效果。     

回转式空气预热器改造技术的探讨

为解决电厂锅炉空气预热器漏风率过高的问题，提出了新的空气预热器改造方案，其技术关键是通过安装新的扇形板和轴向密封板，形成双密封；在转子轴的密封中增加迷宫密封等方法，使漏风率由30％下降到9％，保证了锅炉正常运行及运行的经济性。     

Disaster Reduction Decision Support System Against Debris Flows and Landslides Along Highway in Mountainous Area

Highways in mountainous areas are easy to be damaged by such natural disasters as debris flows and landslides and disaster reduction decision support system (DRDSS) is one of the important means to mitigate these disasters. Guided by the theories and technologies of debris flow and landslide reduction and supported by geographical information system (GIS), remote sensing and database techniques, a DRDSS against debris flow and landslide along highways in mountainous areas has been established on the basis of such principles as pertinence, systematicness, effectiveness, easy to use, open and expandability. The system consists of database, disaster analysis models and decisions on reduction of debris flows and landslides, mainly functioning to zone disaster dangerous degree, analyze debris flow activity,simulate debris flow deposition and diffusion, analyze landslide stability, select optimal highway renovation scheme and plan disaster prevention and control ergineering. This system has been applied successfully to the debris flow and landslide treatment works along Palongzangbu Section of Sichuan-Tibet Highway.     

Dependence of mutual information of big protein sequence

The mutual information function is used to describe the auto-correlation of amino acids in protein. We find two interesting phenomenon: (1) for any given big protein, the mutual information function l(k) is almost a const, where k is the length of gap. (2) for any two sequence similar proteins, the mutual information are nearly the same. As a consequent, we may use mutual information of protein as a character for sequences comparison. Foundation item: Supported by the National Natural Science Foundation of China (30170214) Biography: Shi Feng ( 1966-), male, Ph. D, Associate professor, research direction: bioinformatics.     

高校学科导航资源的知识组织模式及优化

就目前国内外学科资源导航建设现状 ,CALIS学科导航项目建设进展 ,导航库知识组织模式 ,Web站点信息资源的维护方案 ,信息技术对组织模式的影响 ,网络信息资源评价体系的建设方法、指标 ,建立信息质量控制机制和体系 ,信息的优化方案等问题做了探讨 ,分析了网络信息组织的发展趋势 .由此为用户提供具有较高可信度的网络信息资源的有效服务     

Analysis of cDNA sequence, protein structure and expression of parotid secretory protein in pig

Parotid secretory protein (PSP) secreted abundantly in saliva, whose function is related with the anti-bacterial effect. The PSP cDNA has been isolated from pig parotid glands by 3′ and 5′ rapid amplification of cDNA end (RACE), based on the conserved signal peptide region among the known mammalian PSP. The result of homologous comparison shows that pig PSP and human PSP shares the high identity at the level of the primary, secondary and tertiary protein structure. A search for functionally significant protein motifs revealed a unique amino acid sequence pattern consisting of the residues Leu-X(6)-Leu-X(6)-Leu-X(7)-Leu-X(6)-Leu-X(6)-Leu near the amino-terminal portion of the protein, which is important to its function. RT-PCR, Dot blot and Northern blot analysis demonstrated that PSP was strongly expressed in parotid glands, but not in other tissues.     

Abnormal piezoresponse behavior of Pb（Mg1／3Nb2／3）O3-30% PbTiO3 single crystal studied by high vacuum scanning force microscopy

The piezoresponse behavior dependence of the Pb(Mg1/3Nb2/3)O3-30%PbTi03 single crystal on the vacuum degree has been investigated by scanning force microscopy in the piezoresponse mode under high vacuum. Unusual piezoresponse behavior related to the screening charges compensation mechanism is observed on the (111) crystal face. The significant piezoresponse degradation behavior with low piezoresponse signal under high vacuum is attributed to the instability of the polarization state due to the insufficient compensation of the intrinsic screening charges for the polarization charges in PMN-30%PT single crystal. In contrast, the remarkable domain contrast of the sample at ambient pressure is owing to the dominant surface screening charges deriving from surface adsorption, which plays an important role in determining the stability of the domain behavior and in achieving the optimal properties.     

Building of hFⅨ transgenic mice by spermatogenic cells

Human FⅨ expression vector pCMVⅨ was packaged by effectene^TM reagent and injected into mice seminiferous tubules with glass pipettes.The expressional frame of pCMVⅨ was examined by PCR and Southern blotting among 41 progenies.There were 2(4%) mice being integrated with hFⅨ gene into chromosomes.4.6ng/mL of hFⅨ protein was expressed in plasma of one mouse,which was tested by ELISA.We demonstrated that building of transgenic animals by spermatogonial stem cells is an efficient method.Meanwhile,it has also been proved to be an alternative choice for mammary gland bioreactor.     

Evolution of the South China Sea and monsoon history revealed in deep-sea records

As the third summary report of ODP Leg 184 to the South China Sea (SCS), this paper discusses the evolution of the East Asian monsoon and the SCS basin. A multi-proxy approach, involving geochemistry, micropale-ontology, pollen and other analyses, was adopted for reconstructing the evolutionary history of the East Asian monsoon, which was characterized by a series of paleo-climate events especially at 8, 3.2, 2.2 and 0.4 Ma. The new record indicates similar stages in the development of the East and South Asian monsoons, with an enhanced winter monsoon over East Asia being the major difference. The rich spectrums of monsoon variability from the southern SCS also reveal other characteristic features of the low latitude ocean. Evidence for the evolution of the SCS includes the hemipelagic Oligocene sediments, implying the existence of deep water environments during the early seafloor spreading stage of the SCS basin. The four major unconformities and some remarkabl ediagenetic features in upper Oligocene deposits indicate the strongest tectonic events in the region. From a careful comparison of lithologies and sedimentation rates, we conclude that the prominent differences in sedimentary environments between the southern and northern SCS were established only by ～3 Ma.     

磷钼杂多酸催化合成乳酸正丁酯

本探讨了用磷钼酸作催化剂，以乳酸和正丁醇为原料合成乳酸正丁醋，通过对各种酸醇比，催化剂用量，不同反应时间的正交试验，确定了最佳反应条件。