青龙本地山羊随机扩增多态DNA与体重体尺相关性研究

利用９ 种随机引物研究了青龙本地山羊的随机扩增多态ＤＮＡ,并利用ＳＰＳＳ程序对多态标记进行了方差分析。结果表明,青龙本地山羊基因组ＤＮＡ 多态频率为４８．６５％ 。多态标记Ｋ０９Ｂ、Ｐ１４Ｄ和Ｑ１４Ｄ及其互作效应与体重和体尺有显著相关     

河南野生早春开花木本植物资源调查分析

在查阅相关资料的基础上,对河南范围内栽培早春开花木本观赏植物的种类和园林应用现状进行了分析,调查、采集,并记录野生早春开花木本植物资源的分布、花期、花色等．结果表明,河南栽培早春开花木本植物共计有9科、24种;具有较高观赏价值和市场应用前景的野生早春开花木本植物共计18科,41种．最后对野生资源的保护、引种驯化和开发利用提出了建议．     

VaR与CVaR的对比研究及实证分析

对两种风险度量方法——风险价值（VaR）和条件风险价值（CVaR）的性质和最优化算法进行了比较．首先对它们具有的性质如平移不变性等进行了比较,其中CVaR独有的次可加性最能显示它相对于VaR的优越性．然后,通过引入顺序统计量,把现实中基于CVaR的最优组合问题转化成线性规划问题,并说明只有当收益服从高斯分布时,基于VaR和CVaR的两种最优组合问题的解才是一致的,基于VaR的最优问题才有意义．最后对深市股票进行了实证分析,验证了上述结论,并分析了可能存在的影响结果的因素．     

Observation of internal tides and near-inertial motions in the upper 450 m layer of the northern South China Sea

Mooring ADCP current observations from August to November are used to study the barotropic tides, baroclinic tides and near-inertial motions in the upper 450 m layer of the northern South China Sea. The barotropic and baroclinic tides at the mooring station are all dominated by M2, K1, O1, P1, with the barotropic amplitudes being 7.8 cm·s^-1, 7.0 cm·s^-1, 5.4 cm·s^-1 and 3.5 cm·s^-1 respectively. The amplitudes of M2, K1, O1, P1 internal tides vary greatly, which are 12--15 cm·s^-1 in the thermocline, and then decrease with increasing depth. The amplitude of the barootropic near-inertial motions is less than 1 cm·s^-1, contributing little to the barotropic currents. However, that of the baroclinic nearinertial motions can be as large as 5 cm·s^-1. The inclination of tidal ellipse tends to increase with increasing depth, implying upward propagation of energy, while that of the near-inertial ellipse tends to decrease with increasing depth, implying downward propagation of energy.     

East Asian monsoon change for the 21st century: Results of CMIP3 and CMIP5 models

Forty-two climate models participating in the Coupled Model Intercomparison Project Phases 3 and 5 were first evaluated in terms of their ability to simulate the present climatology of the East Asian winter (December-February) and summer (June-August) monsoons. The East Asian winter and summer monsoon changes over the 21st century were then projected using the results of 31 and 29 reliable climate models under the Special Report on Emissions Scenarios (SRES) mid-range A1B scenario or the Representative Concentration Pathways (RCP) mid-low-range RCP4.5 scenario, respectively. Results showed that the East Asian winter monsoon changes little over time as a whole relative to the reference period 1980-1999. Regionally, it weakens (strengthens) north (south) of about 25°N in East Asia, which results from atmospheric circulation changes over the western North Pacific and Northeast Asia owing to the weakening and northward shift of the Aleutian Low, and from decreased north- west-southeast thermal and sea level pressure differences across Northeast Asia. In summer, monsoon strengthens slightly in East China over the 21st century as a consequence of an increased land-sea thermal contrast between the East Asian continent and the adjacent western North Pacific and South China Sea.     

二(1-苯基-3-甲基-4-苯甲酰吡唑啉酮-5)合钯(Ⅱ)的热分解机理

报道了二（１－苯基－３－甲基－４－苯甲酰吡唑啉酮－５）合钯（Ⅱ）的合成、红外表征及非等温热分解动力学．采用微分和积分相结合的方法,推断出了可能的热分解机理及热力学方程．     

城市轨道交通噪声分析与降噪措施的研究

针对目前日趋严重的城市轨道交通产生的噪声污染问题,结合某一高架轻轨结构实例,首先对该高架轻轨线路的噪声进行了预测分析,然后根据该例实际情况设计出适合的声屏障降噪,并进行降噪分析.结果表明当列车以100 km/h的速度驶过,对于距离20 m处的一建筑物各层的瞬时噪声级都达到近90 dB(A),并且与高架桥高度水平的层高处噪声级最高.当采用隔声式声屏障进行降噪后的噪声分析得到,底层的降噪效果最明显,随着建筑物高度的增加,降噪效果有所降低.     

提高亚网格FDTD法对细导线电流的模拟精度

提出了在时域有限差分（FDTD）方法中应用亚网格技术精确模拟细导线上电流的改进方法——圆形积分回路法。通过计算同轴线特性阻抗、无限长细导线对 E 型平面波的散射电流以及单极细圆柱形天线的输入导纳,对所提出的方法作了验证,证明了该方法比常用的矩形积分回路法对细导线上电流的模拟要精确得多。     

绿色荧光蛋白标记的芽孢杆菌在幼龄畜禽体内的动态分布

应用DNA重组技术构建了表达绿色荧光蛋白(GFP)的重组芽孢杆菌(Baci1010).以GFP为标记研究该工程菌在仔猪和小鸡体内的动态分布.试验结果表明:投喂含质量分数为0.1%工程菌(Baci1010)菌液的全价配合饲料12h后,在仔猪和小鸡的肠道内可检测到该工程菌的存在,36h后在小鸡盲肠内该工程菌的数量达到(155±33)×105个/g,48h后在仔猪盲肠内该工程菌的数量达到(133±35)×105个/g,在仔猪和小鸡体内,该工程菌都能在肠道内迅速复活并繁殖成为有益菌.     

基于ICC的色彩管理在数码彩扩机上的应用研究

在数字图像的输入、复制和输出的过程中,色彩的一致性一直是困扰人们多年的问题。以ICC为标准的色彩管理技术很好地解决了这个问题。数码彩扩作为一种计算机图像输出方式,同样面临色彩不一致的问题,因此迫切需要运用色彩管理采对整个冲印过程进行色彩一致性管理。该文综述了将色彩管理运用到数码彩扩机的方法,研究结果对ICC标准的普及应用以及色彩管理应用水平的提高都有着指导意义。