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The theoretical analysis and simulation results of 1kW 40~60VDC/380VDC full-bridge Boost mode two-input DC-DC converter have shown that the converter has the advantages such as double isolation among multiple input sources and between output and input of the converter, simple topology, strong voltage matching ability, multiple input sources can supply the power simultaneously or individually, small input current ripple, high power density, high conversion efficiency, high reliability at short circuit, magnetic flux of high-frequency transformer easy to add up etc.

1kW 40～60VDC/380VDC全桥Boost型双输入直流变换器的理论分析和仿真结果表明，这种变换器具有多路输入源之间以及输出与输入源之间双隔离、电路拓扑简洁、电压匹配能力强、多路输入源可同时或分时供电、输入电流纹波小、功率密度高、变换效率高、负载短路时可靠性高、高频变压器磁通易于叠加等优点。

But there are unfair aspects between urban and rural areas about the sources of law, the scope of rights, funding sources, regulating effect. To establish integration goals and direction about social security rights of the common taw will be an inevitable requirement for build a harmonious society in China, and will guarantee people' s livelihood.

然而，我国社会保障普通法权利在法律渊源、权利范围、资金来源、规范效力等方面存在着城乡不公，确立社会保障普通法权利制度的城乡一体化目标与方向将是我国构建和谐社会，发挥社会保障民生保障作用的必然要求。

Based on the analysis of thermal sources of the electric transmission and the work status of main parts,the heat dissipated from each of the thermal sources was estimated,the preliminary computation of the heat balance was conducted.

基于对电传动冷却系统热源及其工作情况的分析，估算了各热源需要散发的热量，进行了初步热平衡计算，在此基础上提出了适应装甲车辆电传动情况冷却系统结构方案，该方案由高、低温循环回路组成。

By the liquid-state fermentation, the best factors for cellulase from C. thermophile were investigated. The factors including carbon sources, nitrogen sources, the original pH of medium and varieties of pH and the protein concentration during the cultural process were tested .

采用液体发酵培养法，通过对碳源、氮源、培养时间、液体培养基的起始pH值及产酶过程中培养液中pH值和蛋白质含量变化的研究发现：在以2％纤维素、1％可溶性淀粉为碳源，2.0％KNO_3+0.2％酵母为氮源，液体培养基的起始pH值为6.5，50℃下液体发酵培养8d～9d后，各种酶活力最高。

Correlation and signal-to-noise ratio of the space sources can affect the resolution of DOA estimation of subspace algorithms. Using this relation, the algorithm changes the correlation and SNR of the equivalent sources by processing the Toeplitz matrix based on the Toep-MUSIC algorithm, so that the resolution of DOA estimation can be improved.

改进算法利用信源间相关性和信噪比对子空间类DOA估计算法分辨力的影响，在Toep-MUSIC算法基础上，通过对Toeplitz重构矩阵的处理，改变了等效信源的相关系数和信噪比，从而使DOA估计分辨力得到提高。

Compared to the other carbon and nitrogen sources studied, sucrose and malt extract were found to be the suitable carbon/nitrogen sources. The decolorization efficiency of Cerrena unicolor Y5002 to orange G was similar at different orange G concentration below 500mg/L; however, alizarin red inhibited the decolorization reaction at the concentration of 400mg/L or above 400mg/L.

对一色齿毛菌Cerrena unicolor Y5002的液体培养脱色条件进行了研究，其最适碳源和氮源分别为蔗糖和麦芽浸粉；在不同橙黄G浓度下均获得较高的脱色率，因此浓度为500mg/L的橙黄G未对该菌的脱色能力产生抑制作用，而浓度为400mg/L茜素红则对其脱色作用产生明显抑制。

The ambiguity of DOA estimation due to ignorance of the function form of angular signal distribution is analyzed and the DOA estimation without ambiguity is given. 4. A method of DOA estimation of distributed sources is proposed by using the knowledge of the unimodal property of angular signal distribution and independence between different distributed sources.

利用角信号分布函数的共轭对称性，提出了基于噪声子空间的极小最小特征值一维搜索分布式目标DOA估计方法，和基于信号子空间的极大最大特征值一维搜索分布式目标DOA估计方法。

Relatively few French musical sources survive from the years immediately following the Roman de Fauvel manuscript, and those few are fragments whose dating and provenance are subject to substantial disagreement, so there remain very few sources in the purest Ars Nova notation as described by philippe de Vitry.

相对来说，紧接着《福威尔传奇》手稿之后保存下来的法国音乐的原始资料极其稀少，并且都是些零星的碎片，对于它们的年代和出处说法各不相同且有很大的争议。

Liu Ying is built express, Environment, managing the sources of energy, construction is protected in whole society but of durative development society today, with managing wildwood wooden resource and relevant the sources of energy are the electronic paper technology that develops a target, reach book of paper of report of its core product, inevitable meeting makes the product that society and public are happy to accept.

刘迎建表示，"在全社会保护环境、节约能源、建设可持续性发展社会的今天，以节约自然林木资源和相关能源为发展目标的电子纸技术，及其核心产品电纸书，必然会成为社会和公众乐于接受的产品。"

The results show that the global N\-2O emission per year is about 14.7 TgN\-2O\|N, in which 57% and 43% from natural and anthropogenic sources respectively, 92% from N biogeochemistry and only 8% from N abiology, 70% from soil\|related sources, and about 20% attributable to agricultural soil.

得出全球N2 O年释放总量约 1 4 。7TgN2 O -N ，其中自然源和人为源分别占 57%和 4 3 %。年释放总量中N的生物地球化学过程约贡献92 %、非生物作用过程仅贡献 8%；与土壤有关的释放源约贡献 70 %、农业土壤贡献2 0 %。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。