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The influence of residual thermal stress on repairing cracked metallic panel with composite patch bonded is investigated.

分析了残余热应力对复合材料修理金属裂纹板修理效果的影响。

With the analysis of stress intensity factor near the crack tip of the cracked metallic panel,the influence of residual thermal stress on repairing cracked metallic panel with composite patch bonded is investigated.

本文建立了复合材料胶接修理金属裂纹板的三板有限元模型；采用分析金属裂纹板裂纹尖端应力强度因子的方法，分析了残余热应力对复合材料修理金属裂纹板修理效果的影响。

Based on the fundamental solution of two perfectly bonded elastic halfspaces, the boundary integral equation method is used to reduce the problem to a hypersingular integral equation in which the unknown function is the crack opening displacem...

首先根据双材料空间的弹性力学基本解，使用边界积分方程方法，在有限部积分的意义下导出了以裂纹面位移间断为未知函数的超奇异积分方程，并为其建立了数值法。

The elasticity point-force solutions for perfectly bonded elastic halfspaces in literatures are further studied. The compact formulae of displacements and stresses are given, which can be used as Green function in the boundary element method.

对已有的关于双相材料组成空间的弹性力学基本解作了进一步整理，给出了问题的位移场和应力场的显式表达式，此解答可作为Green函数在边界元法中进行使用，从而为使用边界元法研究双相材料中的力学问题奠定了基础。

Xi ′ an Jiaotong University, Xi ′ an 710049, ChinaAbstract : Propagation of generalized Rayleigh wave in a layered piezoelectric structure with initial stress is investigated. It involves a thin elastic layer bonded perfectly to a piezoelectric elastic substrate.

摘 要：通过求解考虑初应力时的耦合波动方程，研究了覆盖层为各向同性材料、基底为横观各向同性压电材料的压电层状结构中广义Rayleigh波传播时初应力和相速度的关系。

The spinodal surface instability induced by the van der Waals force in a soft elastic thin film perfectly bonded to a rigid substrate is investigated theoretically using the bifurcation theory of elastic structures.

本文采用弹性体分叉理论，分析了完好粘结在刚性基底上的软弹性薄膜由范德华力引起的表面自发性失稳问题。

Prior to the removal of goods from bonded warehouse or the importing carrier, permittee is required to submit application form (CED 383) to this Department for Customs officers attendance for checking of the goods.

Fax： 2429 4167 持证人须於货品从保税仓或进口运载工具搬移前向香港海关递交申请书(表格CED383)，以预约海关派员在场检查货品传真：2429

Prior to the removal of goods from bonded warehouse or the importing carrier, permittee is required to submit application form (CED 383) to this Department for Customs officers attendance for checking of 'For Export','Ship Stores' or 'HKDNP' markings on the outer containers of the goods.

持证人须於货品从保税仓或进口运载工具搬移前向香港海关递交申请书(表格CED383)，以预约海关派员在场检查货品包装箱是否标有"出口用"，"船舶补给品"或"HKDNP"的标记(传真：2429 4167)。

PETN is a typical nitric acid ester of high explosive with good explosion property. It is chosen as the base of polymer bonded explosive.

PETN（季戊四醇四硝酸酯，又名太安）是爆炸性能优良的硝酸酯类高能炸药的典型，该研究将其选作高聚物粘结炸药中的墓炸药。

The second experiment is to fabricate white light LED from red and green phosphors pumped by blue light LED. The blue light LED we used in our experiment has the wavelength range between 450 and 452.5 nm, and the chip size is 17 mil *14 mil. There are two kinds white light LED we fabricated in the experiment. There are three blue light LED chips bonded in single package of both kinds package. The different of the both packages is mixed phosphor of encapsulation. One of the experimental devices was encapsulated YAG phosphor mixed silicone to fabricate white light. The other is red and green phosphor mixed encapsulation. The compared and focused parameter was luminous efficiency. YAG phosphor pumped white light has the luminous efficiency 72 lm/W, CRI 70, CIE(0.32, 0.33), CCT 5622°K at the operating current 60mA. On another hand, red and green phosphor pumped white light LED has the luminous efficiency 55 lm/W, CRI 90, CIE(0.31, 0.32), CCT 6479°K at the operating current 60mA. We fabricated the red and green phosphor pumped white light LED, and proved that it could has much higher CRI under similar compared conditions, CIE xy and CCT.

第二个实验是使用蓝光LED晶粒来制作白光元件，蓝光LED晶粒波段范围在450 ~ 452.5 nm，晶粒大小为17*14 mil，以三颗蓝光LED晶粒搭配YAG萤光粉(黄绿光 540 nm)制成白光元件，再以另外三颗蓝光LED晶粒搭配红色萤光粉(613 nm)混合绿色萤光粉(519 nm)制成的白光元件进行发光效率比较；搭配YAG萤光粉的白光元件在注入60 mA的电流时所量测到最大的发光效率是在72 lm/W，演色性数值大约为70，CIE色度座标为(0.32， 0.33)，色温是在5622 °K；而搭配红色萤光粉混合绿色萤光粉的白光元件在注入60 mA的电流时，最大的发光效率在55 lm/W，演色性数值大约为90，CIE色度座标为(0.31， 0.32)，色温在6479 °K；证明了蓝光LED晶粒搭配红色萤光粉混合绿色萤光的白光元件演色性指数可以高达90 以上的结果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。