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Compared the similarity and difference of distribution of homologous fragments on X and Y, we suggested that the sex chromosomes of spiny eel have evolved from a pair of homologous ancestral chromosomes, and during the evolution, a pericentric inversion might have occurred on the original Y chromosome, and subsequently terminal regional duplication might have followed, eventually resulting in the differentiation and formation of X and Y chromosomes, then the recombinants between sex chromosomes were repressed, so the sex chromosomes could be inherited steadily.

根据X、Y染色体上同源片段的分布的相似和相异，我们对刺鳅性染色体的分化历程进行了推测，即：刺鳅的性染色体起源于一对原始的同源染色体，通过原Y染色体上的一个明显的臂间倒位，以及染色体末端的异染色质成分的扩增，导致原始Y染色体与X染色体在染色体结构上的分化，从而抑制了X、Y性染色体之间的遗传物质的重组交换，为性染色体的稳定遗传奠定了基础。

It was found that La〓 does not affect the binding affinity between calmodulin and Polistes Mastoparan, a known calmodulin binding peptide, neither the conformation of the ternary complex. Excessive amount of La〓 result in the decrease of the binding constant and the disrupted conformation. The binding affinity of La〓 to calmodulin increased in the ternary complex (La〓-CaM-Mas/Mas X), which suggested the coordination between the two global domains. The binding priority between the two global domains is also changed: La〓 more is likely to bind to the C-terminal of calmodulin than to N-terminal, thus facilitates the binding of Mas/Mas X to the C-terminal of calmodulin as the first step of the Mas/Mas X binding.

在以钙调蛋白结合肽—Polistes Mastoparan和Mastoparan X为对象的研究中，我们发现，除非过量，否则La〓的存在不影响钙调蛋白与Mas间的结合常数以及构象；过量的La〓（La〓/CaM摩尔比＞4）将引起钙调蛋白结合功能的下降，同时明显改变金属-钙调蛋白-Mas三元复合物的构象；La〓对Ca〓CaM-Mas的N末端表现高度选择性，显示了在三元复合物中两种离子间的协同效应；在三元体系中，La〓与钙调蛋白的亲和力明显上升，而且亲和力上升的程度因钙调蛋白结合肽的不同而有明显差异，显示了作用的选择性；Mas和MasX的存在改变了La〓在钙调蛋白上的结合顺序，La〓很可能优先与C末端结合，从而使Mas/Mas X首先与C末端结合，该顺序与钙离子相同；La〓的参与使三元复合物在动力学上更加稳定。

Therefore, zinc oxide and Eu~(2+)-activated strontium aluminate green phosphors were synthesized for the fluorescence conversion of near ultraviolet light-emitting diode, and their properties were examined by means of photoluminescent spectra, thermoluminescent spectrum, X-ray photoelectron spectroscopy and X-ray diffraction.

本研究针对近紫外LED荧光转换材料的要求，采用荧光光谱，热释光谱，X射线光电子能谱，X射线衍射等分析手段，重点研究ZnO绿色荧光粉和Eu~(2+)激活铝酸锶绿色长余辉荧光材料的合成，或提高发光效率和稳定性的新方法及其相关机制。并在以下几方面取得了一些进展： [1]将ZnS与一定量的卤化物MX(X=F，Cl，Br，I；M=Na，K，NH_4，Zn，ZrO)一起煅烧合成出发光性能优良的、具有六方纤维锌矿结构的ZnO绿色荧光粉。

Toop's model and Miedema method are to be used to calculate the heat of formation of ternary compounds. A projected method is used to obtained the heat of formation of AB_(1-x)G_x. The heat of formation is negative for GaAs_(1-x)P_x and for GaAs_(1-x)N_x compounds in the all range and for GaP_(1-x)gN_x compound in the

我们分别用Pauling和Phillips经验方法及Miedema半经验方法计算[59]得到Ⅲ-Ⅴ族二元合金的生成热，比较三种方法，均只定性与实验结果吻合，但Miedema方法具有准第一原理特点，可以从组元基本特性出发来得到合金生成热的数据；我们把TOOP'S模型引入计算中，并把计算结果投影到Ⅲ族组元总浓度等于所有Ⅴ族组元总浓度的平面上，即计算AB_(1-x)C_x合金系的

The Fe^0 concentration and pH had optimal values during the decolorization of X-BR in Fe^0-anaerobic biological system. When Fe0 dose, initial pH value and X-BR concentration were 400 mg/L, 7 and 100 mg/L respectively, the decolorization rate of X-BR in the integrated system could reach up to 90% after 68 h reaction. Compared with pure Fe^0 and pure microorganism treatment systems, it could be improved about 40% under the same experimental conditions. In addition, the analysis result of UV-vis spectrogram indicated that Fe^0 could promote effectively biodegrading of anthraquinone dye X-BR and its intermediate products.

结果表明，在Fe^0-厌氧微生物体系中，Fe^0投加量和pH值均存在最适宜值，当两者分别控制在400mg/L和7，染料初始浓度和反应时间分别为100mg/L和68h时，该体系脱色率可达到90%以上；与相同反应条件下的纯Fe^0、纯厌氧微生物体系相比，该体系的脱色率提高近40%根据紫外可见光谱分析，Fe^0可有效促进厌氧微生物对X-BR及其中间产物的降解，实现完全脱色。

This Planet X complex has appeared regularly on both the C2 and C3 images, when the automatic air brushing programs in place to disguise the presence of Planet X falter or when there is dithering or bobbling so it appears in an unexpected place in the images.

虽然有自动喷涂和清理程序在运行，以掩盖行星X的存在，但行星X的综合体还是在C2和C3卫星影像上经常出现；当有跳动时，行星X就出现在了影像上无法预期的位置。

The result shows that the hydrogen storage properties increase remarkably after pure magnesium ball-milled with 10% TiFe(subscript 1-x)Cr (x=0, 0.3). Moreover, the chromium content also influences the hydrogen storage characteristics. Furthermore, the ball-milled composite of Mg+10%TiFe0.7Cr0.3 has the best hydrogen storage properties with hydrogenation capacity of 7.14% and dehydrogenation capacity of 6.91% at 613 K. In addition, the lower temperature of 493-573 K, the Cr-contained composite exhibits the best dehydrogenating kinetics.

研究结果表明：在纯Mg中添加质量分数为10%的TiFe(下标 1-x)Cr(x=0， 0.3)进行复合球磨，可以明显提高其吸放氢性能；在相同温度条件下，x=0.3的含铬复相合金具有最佳的吸放氢性能，其中在613 K下的吸氢容量为7.14%，放氢容量为6.91%；在493~573 K的较低温度下，含铬复相合金表现出更好的放氢动力学性能。

Research results indicate that X FLOUR has notable effects of fluidizing and water reducing.

研究结果表明：X粉具有显著的流化与减水效应，其流化与减水效果与目前市售掺合料的最高水平相当，明显好于硅灰。X粉与硅灰复合后，仍具有流化效应。X粉产生流化效应的机理，一是增加水泥浆悬浮体系的分散性；二是通过填充效应减少填隙水，增加了用于混凝土流动性的水量；三是增加混凝土混合料的浆体体积。X粉流化与减水效应的发挥，以与高效减水剂双掺为前提。

objective to compare image manifestations values between high resolution computerized tomography and x-ray chest film in idiopathic interstitial pneumonia in the elderly.methods we analysed and compared image manifestations between hrct and x-ray chest film with 12 cases of clinically suspected iip in the elderly.results ct and hrct had more sensitivity and specificity than x-ray chest film.there were more image manifestations in hrct such as grand grass,net,line,nodular,honeycombing,bronchiectasis,honeycombing cyst,peribronchovascular interstitial thickening and irregularity.there were significant difference between them （p.05）.these patients who were suspected iip had better control and remission after being treated with hormone and immuno-suppressive drug.conclusion it have more significant virtues in hrct to manifest iip in the elderly than x-ray chest film,and it also may manifest iip curative effect.

目的 比较高分辨断层摄影术、x线胸片检查对老年特发性间质性肺炎的诊断价值。方法对12例临床疑诊为间质性肺炎的老年患者，进行胸部hrct与胸部平片检查，并对照分析。结果胸部ct在诊断方面比常规胸片有较大的优越性，hrct则有更高的敏感性和特异性，hrct表现出磨玻璃影、网状、线条、小结节、蜂窝影，支气管扩张、细支气管扩张、支气管壁和血管壁增厚及不规则等征象，12例临床疑诊为间质性肺炎的患者，经胸部hrct诊断的12例，而胸部平片诊断的仅有2例，二者比较差异有显著性（p.05），hrct疑诊的iip患者，经临床激素及免疫抑制剂治疗，病情均得到控制或缓解。结论 hrct表现老年间质性肺炎的特点明显高于胸部平片，且hrct可以反映间质性肺炎的疗效。

Advancement of CT machine : Since CT machine has been applied , with unceasing development of computer technique, detector technique , X-ray technique and new micro-electron and micro-technique have been used , thereby performance of computerized X-ray tomography machine has been improved greatly , it is era-changing identification of computerized X-ray tomography scan from bed plane scan to spiral scan. 2The image after-treatment technique: With emergence of spiral computerized X-ray tomography and exploi...

1CT机的进展：CT机器自问世以来，随着计算机技术、探测器技术、X线技术的不断发展以及新的微电子和显微技术不断的应用于CT机，从而提高了CT机的性能，标志着CT扫描从层面扫描到螺旋扫描的换代。2图象后处理技术：螺旋CT的出现及计算机软件的开发，利用导航技术做出具有3D仿真内窥镜的图象，既，这种新的影像学方法，引起了广泛的关注。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。