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Based on the linear creep superposition principle, admiting average loading age coefficient and average time-lasting coefficient, adopting creep and shrinkage calcultion in ACI code, a simplified method of creep and shrinkage analysis in reinforced c

摘要根据线性徐变的迭加原理，引入平均龄期影响系数和平均持荷影响系数，利用ACI规范中的徐变和收缩计算公式，推导了钢筋混凝土轴压构件分批加载时收缩徐变分析的简化计算方法。

Based on the linear creep superposition principle, admiting average loading age coefficient and average time-lasting coefficient, adopting creep and shrinkage calcultion in ACI code, a simplified method of creep and shrinkage analysis in reinforced concrete member bearing multi-times axial forces is presented.

根据线性徐变的迭加原理，引入平均龄期影响系数和平均持荷影响系数，利用ACI规范中的徐变和收缩计算公式，推导了钢筋混凝土轴压构件分批加载时收缩徐变分析的简化计算方法。

It is found that the position of vortex shedding is different fro m three-row cylinders. The time-mean pressure coefficient along the surfaces o f the cylinders is not changed with the void friction. But the fluctuating press ure coefficient reduces with the increase of void fraction.

试验结果表明：沿圆柱表面周向的旋涡分离点随着流动向深层发展，并向圆柱的背部移动；圆柱表面沿周向的时均压力系数几乎不随含气率的变化而变化；圆柱表面的脉动压力系数随着含气率的增加而减小。

Further, the influence of apodizing function, chirp coefficient and cross-coupling coefficient on the dispersion of thin-clad chirped LPFG is also analyzed.

进一步分析了切趾函数、啁啾系数、交叉耦合系数等参数对薄包层啁啾LPFG色散的影响。

Fourth, according to the Weibull distributing functions of equivalent loads, calculated the max loads by expanded sample method, acquired eight routine loads spectrum of each roads taking advantages of the Connover classification method, calculated the respective enhancement coefficient in principle of amended Miner linear accumulated fatigue damage rule, by the comparative norm of general tar-paved road, educed the mathematical model of calculating enhancement coefficient of synthesized roads.

第四，根据各路面的等效载荷的Weibull分布函数采用扩展样本法求得了各路面的极值载荷，按照Connover的分级法得到了各路面的八级程序载荷谱。以一般沥青公路为比较基准，采用修正的Miner线性累积损伤理论，根据前桥的S-N和P-S-N关系式得到了各路面的强化系数，建立了综合路面的强化系数计算的数学模型。

Analyzes the degree of influence of improving the external window heat transfer coefficient and changing sun-shading manner and sun-shading coefficient on the limited value of energy consumption.

分析了提高外窗传热系数、改变遮阳方式和遮阳系数对能耗限值的影响程度。

This article,on the basis of the limited value of energy consumption under the specified indicators for different climate subregions in Hot-summer and Cold-winter Area,analyzes the degree of influence of improving the external window heat transfer coefficient and changing sun-shading manner and sun-shading coefficient on the limited value of energy consumption.

文章以夏热冬冷地区不同气候子区域规定性指标下能耗限值为比较基础，分析了提高外窗传热系数、改变遮阳方式和遮阳系数对能耗限值的影响程度。

The results show that:(1)the low-noise source-follower circuit can be effectively used to measure the output of PVDF thin film;(2)the piezoelectric coefficient D33 of the PVDF is very sensitive on temperatures;(3)the value of D33 intensively fluctuate in initial loading stage,this means that a pre-load is needed in practice application to keep a constant piezoelectric coefficient D33 of the PVDF;(4)when the compressive load is imposed on the surface of the PVDF along a incline direction,D33 value is obvious changed with changing incline angle,and(5)the frequency bandwidth of the PVDF thin film is very wide,it is more suitable to measure strike or impact loading at various loading conditions.

结果表明：(1)低噪声源跟随电路可有效测量PVDF 薄膜输出；(2)PVDF压电薄膜的压电系数D33对温度很敏感；(3)D33值在加载初始阶段波动很大，所以实际应用中应给PVDF提供一个预压载荷，以确保有一恒定的压电系数D33；(4)当压载荷沿倾斜方向作用在PVDF 表面时，由于有剪切力作用，D33 值会随着倾斜角的变化发生显著改变；(5)PVDF 薄膜具有很宽的频响，更适用于测定不同载荷条件下的侵彻或冲击等动态载荷。

In order to compare the performance of electric-driven compression type refrigerating machine and steam-driven lithium bromide absorption machine,defines a modified performance coefficient—equivalent performance coefficient based on the analysis of existing indices for electric-driven compression type refrigerating machines.

为便于比较电动压缩式制冷机与蒸汽溴化锂吸收式制冷机的性能，在对现有制冷机性能评价指标分析基础上，提出了修正后的电动压缩式制冷机的性能系数———等效性能系数。

The experiment shows that:(1) In certain light intensity and electric field ranges (145～305V/cm) the material Si∶ with a resistivity of 1E4Ω·cm exhibits a current oscillation phenomenon at liquid nitrogen temperature;(2) At a certain electric field,the waveform of the current oscillation is stable and does not change with time;(3) The dependence relation between the oscillation frequency and light-intensity can be expressed by f=f0(L/L0)α where L0 is the minimum light-intensity needed to stimulate oscillation,f0 is the frequency under L0,L is the intensity of the light,and α is a coefficient that increase with electric field;(4) The modulating coefficient K K=(Imax-Imin/Imax decreases as the light increases;(5) The maximum value of the oscillation Imax decreases with the increase of the light-intensity while the minimum value of oscillation Imin increases slowly.

结果表明：在一定光照和电场范围内（276～305V/cm ，电阻率为10.4Ω·cm的材料在液氮温度下显示出电流振荡特性；在一定的电场下，电流振荡波形是固定的，不随时间变化；振荡频率随光照强度的增大而线性增大；调制系数随着光强的增强而减弱；振荡的最大值随着光照强度增大而减小，最小值随着光强增大而缓慢增大。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。