赋形

Shadow effect can not be neglected for thermal analysis of spacecraft,Accroding to the angle between solar light and antenna orbit plane and its orbit location,analytical geometry method was used for accurately calculating solar radiation heat flux distribution of reflector surfaces.To analyze the temperature field under heat flux,the formulations of net radiation flux density between two gray elements and the net flux density of gray surface under external thermal flux were deduced.Based on the characteristic of space environment,the nonlinear temperature distribution in transverse direction of reflector shell self radiation were considered,the finite element formulations were given for orthogonal material layered shell by Galerkin method.A layered element including a inner heat source layer was proposed,and the finite element formulation expressed by DOF of the inner heat source layer were put forward with temperature and heat flux boundarys between adjacent layer.

单馈反射面赋形天线是未来星载天线发展的一个重要形式，分析了基于物理光学、几何光学和几何绕射理论的理想反射面辐射场；介绍了基于几何光学的反射面天线赋形方法；针对赋形过程中辐射场的快速分析要求，比较分析了基于物理光学的Fourier-Bessel和Jacobi-Bessel级数展开方法以及GB展开分析方法；利用GB展开快速分析方法在20GHz频率下对0.6m口径的天线进行赋形分析，实现中国大陆的30dB增益覆盖，通过数值计算研究了固定增益期望下的口径尺寸随频率的变化，以及频率为20GHz的不同尺寸天线赋形后的覆盖目标区域最大增益的变化情况。

The features held by PAA are fast scanning and beam deflection, which are not provided with other traditional antennas.

相控阵天线有常规阵列天线所不具备的特点：快速、无惯性的扫描能力，快速波束赋形能力等。

Methods: A composite of coralline hydroxyapatite,used as bone graft supporting frame,human bone morphogenetic protein2(rhBMP2) and type I collagen,used as carrier of rhBMP2, was prepaired and transplanted into cranial defects of mice;the effects were observed.

采用珊瑚转化多孔羟基磷石作为移植物支架，用I型胶原作为rhBMP－2的缓释载体及赋形剂，将三者复合制成新型人工骨，进行了大鼠标准颅骨缺损骨移植实验。

With the overview of present MIMO antenna research, the thesis brings forward a new kind of polar diversity antenna array applied in MIMO base stations, which elements are planar printed dipoles. The beamforming technology is used to obtain a particular type of elevation pattern, which has square cosecant characteristic.

本文在对目前MIMO 天线领域的研究动态进行概述的基础上，结合基站的自身特点，提出并实现了一种新型的基站极化分集波束赋形天线阵列，其阵元为平面印刷偶极子，阵列在俯仰面形成类似平方余割形式的方向图分布。

A kind of best baffle-beard suitable for applications in the dual-frequency base station antenna is presented, meanwhile, we adopt the PSO algorithm to optimize the parameters affecting antenna pattern such as the phase of the elements, the space between the elements, such that the pattern of antenna can be shaped in the vertical plane （the pattern in the vertical plane has Cosecant beam in the service area）.

针对我国移动通信频率，以基站天线的双频工作以及阵列波束赋形为目标，设计了一种满足基站天线双频辐射要求的最佳反射板形状，并通过PSO全局优化算法优化各单元馈电相位并调整其间距以实现垂直面方向图双频波束赋形的目的（即垂直面方向图在所覆盖的服务区域内具有余割波束）。

Of these 4.8 million lb, approximately 60% is estimated to be used in coatings applications and 40% is used for other excipient uses.

这4.8 百万磅，大约60%估计被使用在涂料，40%被使用于其它赋形剂使用。

Mannitol, a typical pharmaceutical excipient, was selected as the solute in aqueous solution.

甘露醇，一种典型的配药赋形剂，在水溶液被选择了作为溶质。

The formulation development is based on preformulation results. Prefomulation studies including spectral analysis, solubility, stability and excipient compatibility were conducted.

本实验经由处方前研究，包含T1-11的光谱分析、溶解度、安定性试验、以及与赋形剂相容性，从中挑选合适的赋形剂，再加入不同比例赋形剂，使用直接打锭法制成锭剂并做处方测试。

Methods Twenty four female Zucker rats were divided into four groups: lean rats + vehicle, lean rats + clofibrate, obese rats + vehicle, obese rats + clofibrate. Daily intraperitoneal injection of clofibrate (300 mg/kg) or vehicle (olive oil, 1 mL/kg) was given to the rats for two weeks.

选择瘦型和肥胖型Zucker大鼠24只，分为：瘦大鼠＋赋形剂组，瘦大鼠＋氯苯丁酯组，肥胖大鼠＋赋形剂组和肥胖大鼠＋氯苯丁酯组，分别给予腹腔内注射抓苯丁酯(300mg/kg)或赋形剂（橄榄油，1mL/kg）2周。

Objective To investigate the influence of different excipients on the stability of baicalin solution.

张婷，朱婷婷，不同赋形剂对黄芩苷溶液稳定性的影响目的研究不同赋形剂对黄芩苷溶液稳定性的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。