双

A new experimental apparatus has been developed for measuring the thermal conductivity of liquid by the two transient hot-wire method, which is based on the theory of one-dimensional unsteady heat conduction in infinite medium.

摘 要：采用双热线瞬态热线法研制出一套瞬态双热线液体导热系数测试装置，在阐述该测试仪器的基本原理和测试方法的基础上，就该仪器对乙醇、乙二醇、甘油和去离子水进行测试的实验情况及结果进行了分析与比较。

We also find that the temperature dependence of those interlayercouplingsare considerably enhanced with the decrease of the Hubbard interaction.

我们还发现当Hubbard互作用减弱时，双线性和双二次耦合强度随温度升高的衰减会显著增强。

We coupled the IgG of monoclonal antibody N34 specific to UK and the Fab of monoclonal antibody SZ-51 specific to the membrane protein GMP-140 of activated platelet. The bispecific antibody (N34 SZ-51) is able to bind UK and plasma-clot simutaneously. It enhanced plasma clot lysis 5 fold by HUK whereas it enhanced plasma clot lysis 38 times by LUK. UK in association with the bispecific antibody didn't decrease the concentration of fibrinogen in the assay supernatants.

利用抗体介导使纤溶酶原激活剂定向到血栓表面，可大大提高其纤溶作用，我们用双功能团试剂将抗尿激酶的单克隆抗体N34的IgG和抗活化血小板膜蛋白GMP-l40的单抗SZ-5l的Fab片段通过二硫键共价偶联，合成的双专一性抗体（N34-SZ-51）既具有血栓亲和性也具有尿激酶亲和性，从而增加了尿激酶对血栓的专一性，使高分子量尿激酶溶栓率提高了5倍，使低分子量尿激酶溶栓率提高了38倍之多，且不影响血浆中纤维蛋白原的含量。

Three open chain crown ether s and triglycolyl isopropylidene hydrazide complexes of rare earth nitrate were synthesized for the first time with isoproylidene hydrazide as the terminal group and through IR, 1HNMR, MS, characterized their structures have been characterized.

首次合成了以丙酮酰腙为端基的3种双酰腙型开链冠醚及三甘双酰丙酮腙稀土硝酸盐配合物，并通过元素分析，IR，1HNMR，MS对分子结构进行了表征

Based on the existed approaches of hydrometeor classification and the requirement of application in China,we construct a algorithm to classify the precipitation particles with the polarimetric radar observations,and make a comparison of polarimetric radar variables sensitivity Z_DR,K_DPand ρ_HV(0) in this model.

在综合分析国内外降水粒子相态识别方法的基础上，结合我国双线偏振雷达的应用需求，建立了一套利用双线偏振雷达探测资料识别降水粒子类型的识别模式，并根据美国KOUN雷达观测资料对该模式进行了分析验证，同时检验了模式中的几个偏振参数：差分反射率因子ZDR、差传播相移KDP、水平偏振和垂直偏振回波功率零滞后互相关系数ρHV(0)对不同降水粒子的识别效果。

Methods In 120 cases of pregnant women, all kinds of parameters were measured,such as size, solidity ,degree of hydrops of double kidneys and hemodynamic changes of kidney.

120例受检孕妇中，均要求晚期妊娠时做孕妇双肾大小、体积、双肾积液程度及肾脏血流动力学的测定。

The purpose of the paper is to investigate the convergence of the mixed finite element method for the initial-boundary value problem for the Hyperbolic type integro-differential equation and Hyperbolic type equation.

本文讨论了双曲型和双曲型积分微分方程的标准混合有限元和H~1-Galerkin混合有限元方法的L~2模和H~1模的误差估计。

The result indicates that the damping term drastically changes the asymptotic behavior of the hyperbolic equation.

分析结果表明，阻尼项强烈地改变双曲型方程解的渐近行为，强阻尼双曲型方程组的能量E随时间按指数衰减，即E≤Cexp。

For this method, although the variable time steps can be employed and the initial conditions can be determined in a more natural way, it investigated a special kind of hyperbolic equation with separable coefficients.

该方法虽然不受等时间步长的限制，对初始条件的选取也更具灵活性，但是它是针对一类变量分离系数型的特殊双曲型方程进行讨论的，对一般形式的双曲型方程则没有提及。

An advanced numerical analysis indicates that two coaxial hyperbolic secant beams, provided that they satisfy the functional relations of FWHM with amplitudes of this type of PVSS, will be very close to solitons when they propagate in PV crystals.

进一步的数值模拟结果表明，当入射双曲正割光束满足复色光伏孤子半高宽与中心光强的关系时，双曲正割光束在晶体中的传播就非常接近孤子，表明复色光伏孤子对于小的微扰是稳定的。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。