使增大

The results show that the density of glass, glass transition temperature and thermal expansion coefficient increase with the increase of yttria content, and the chemical durability decreases with the increase of yttria content. The bend strength of glass increases from 53.52 MPa to 109.65 MPa when 1.80% Y2O3 is added into glass. However, with the content of yttria further increases to 6.84%, the bend strength is suspended about 110 MPa. Y2O3 acting as network modifies in the structure and makes the island-shape network unit repolymerization by the bonding of Ge-O-Y because of the decrease of non-bridge oxygens and strengthening of glass network structure.

结果表明：该系统玻璃的密度、玻璃转变温度和热膨胀系数随氧化钇含量的增加而升高，玻璃的化学稳定性随氧化钇含量的增加而下降；在玻璃中加入1.80%氧化钇后，玻璃的抗弯强度值由53.52 MPa增至109.65 MPa；继续增大氧化钇的含量至6.84%时，玻璃的抗弯强度维持在110 MPa左右；氧化钇的加入减少玻璃网络结构中非桥氧数量，使孤立的岛状网络单元重新聚合，增强玻璃的网络结构。

It is well known that the large lattice mismatch (16%) and thermal expansion coefficient mismatch between GaN and sapphire substrate are the main origins of TDs. By new growing technique of LEO, we acquired high quality GaN films almost free of TDs. The stress characteristics in GaN films with MLTB growing technique is dependent on growing systems and conditions, and the changes of stress and dislocation density are rightabout; Combining buffer layers of high temperature and low temperature is first developed to growing GaN films with low dislocation density, and the mechanism of lowering TDs density is that the first buffer layer of high temperature can make nuclear in second buffer layer of low temperature bigger. This technique also can restrain yellow luminescence effectively.

众所周知，晶格失配和热应力失配是GaN异质外延中位错产生的主要原因；为此，我们对几种降低缺陷的MOCVD外延生长方法进行了新的尝试，其中尝试了侧向外延生长技术，得到了低位错密度（小于10〓/cm〓）、高质量的GaN外延层；尝试多低温缓冲层法，发现材料中的应力特性与生长系统和生长条件有关，材料中的应力与位错密度按相反方向变化；首次尝试高低温联合缓冲层法，材料中高温缓冲层可以使随后的低温缓冲层中成核颗粒增大，从而导致随后高温GaN外延膜中位错密度降低，并且能够有效地抑制黄光峰。

EAA formed a rodlike extension structure in PP matrix, and much more continuous structure are formed, which resulted in a rapid decreasing of the volume resistivity with the increasing of EAA resin content.

EAA相在PP基体中呈棒状伸长结构，且随着EAA树脂含量的增大，在PP基体中形成更多更为连续的棒状伸长结构，使体积电阻率迅速下降。

The ionic conductivity of polymer electrolytes equaled 3.56×10-4 S·cm-1 when the mass fraction of silicotungstate lithium was 8.5% in polymer film. The lithium ions transference number, which was measured by the method of combination of AC impedance with DC polarization, decreased with increase of the mass fraction of Li4SiW12O40 in the porous polymer film.

为了提高聚合物电解质的Li+离子迁移数，人们设法增大阴离子的体积[6~8]使其难以迁移而达到提高Li+离子迁移数的目的，很少应用含有多个Li+离子的锂盐做聚合物电解质的Li+离子载体。

The resistivity of filled skutterudites increases with the increase of the filling fraction. It originated from the decrease of carrier concentration in the skutterudite for the samples with high filling fraction and also the difference of the content of Fe Sb〓 and Sb in the samples.

填充型方钴矿材料的电阻率随填充率的提高而增大，这一方面是因为镧的引入使材料的载流子浓度降低，另一方面低填充率的样品中的低电阻率还与样品中的FeSb〓和Sb杂质的存在有关。

Firstly, the specific surface area of nano-coated particle is much larger than that of ordinary wollastonite, and the edges formed in comminuting is passivated, which made the slippy crystal surface coarsened. At the same time, the color of nano-coated particle became whiter, which fit for light ware. Secondly, if the coated wollastonite hasn't been modified by coupling agent, the toughness of PP/ wollastonite composite couldn't be improved.

在硅灰石表面包覆上纳米级SiO2小颗粒对硅灰石的应用特性有重要影响：①纳米包覆粒子填料的比表面积比普通硅灰石大，纳米级SiO2小颗粒钝化了由于机械力粉碎造成的硅灰石的棱角，使其平滑的晶体解理面变得粗糙，同时硅灰石粉体白度增大，可应用于浅色制品。

It is shown that the texture formation of as-spun fibers is very sensitive to the presence of high molecalar weight tail in the MWD of polypropylene resin. Under ordinary spinning conditions the as-spun fiber obtained from controlled degraded polypropylene resin showed smectic structure with low degree of oritation.

在通常的纺丝条件下，用控制降解的聚丙烯树脂纺得的卷绕丝具有低取向的次晶结构；而在相同的粘均分子量和纺丝条件下，高分子量尾端的存在使聚丙烯易于在纺丝线上生成结晶性较高的α-晶型，卷绕丝的取向也随高分子量尾端而显著增大。

Viral vector mainly contain adenovirus, retrovirus,adeno-associated virus and so on, but it has potential danger of safety; it isrepeled by immune system when it is injected to organism for a greatimmunogenicity. An injection with adenovirus vector with highconcentration, it leads to serious inflammatory reaction of liver. Viralvector such as liposome and polycation are commonly used lately. But,liposome and polycation have low specificness and targetness of genetransfer tissue, have lower transfection efficiency and short period ofgene expression, for they can be phagocytized by endothelial system.

许多的载体，病毒载体和非病毒载体以前已广泛应用，病毒载体主要包括腺病毒，逆转录病毒，腺相关病毒等；但病毒载体在安全性方面存在潜在的危险；免疫原性比较强，注射到机体后很快会被机体的免疫系统排斥，当静脉注射高浓度的腺病毒载体会使肝脏发生严重的炎症反应；非病毒载体目前常用的有脂质体及多聚阳离子聚合物；但脂质体和阳离子聚合物介导基因转移缺乏组织的特异性和靶向性，转染效率较低且易被网状内皮系统吞噬，基因表达时间短；因此研制新型的非病毒载体已成为研究的热点，纳米颗粒具有小尺寸效应，表面效应，随着颗粒直径变小，比表面积将会显著增大，故具有很高的化学活性，因而纳米成为了最有应用前景的非病毒载体。

Results:Three important MRI feat ures of brain stem gliomas were found:①enlargement of brain stem contour.Using different sequences and planes the precise tumor location could be obtained.Sagittal scan could well display the early stage of brain stem glioma,the tectal glioma and cervicomedullary junction glioma.

结果：MRI表现有以下3个特征：①肿瘤使脑干的外形增大，通过不同序列和断面显示肿瘤的精确部位，矢状面对于显示胶质瘤的早期改变、顶盖部位及延髓颈髓联合部位的胶质瘤具有独特作用。

Dare not animadversion to the student, dare not punishment more, the result is to make the teachers psychological stress enlarge, indecisive, thoughted the effect of moral qualities education to also lower.

对学生不敢批评，更不敢惩罚，结果是使教师们心理压力增大，无所适从，思想品德教育的效果也降低了。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。