查询词典 transfer coefficient

The principle of determination of sound absorption coefficient of materials by transfer function method is introduced.

介绍了在阻抗管中采用传递函数法测量材料吸声系数的原理，详细介绍了使用双传声器进行测量的方法，指出了测试的频率范围取决于阻抗管的管径大小和传声器布置的位置。

We then applied the transfer matrix introduced by Allard to evaluate the absorption coefficient and the transmission loss of the materials and also compared the results to the previous lectures, including experiments and theoretical analysis, to verify the accuracy of the present method.

并将Allard建立的转换矩阵应用在计算材料吸音率及穿透损失。接著，将以往学界所发表的文献和做过的实验，与理论程式互相比对，以印证理论程式的正确性。

Alpha decay half-lives of even-even superheavy element s are calculated in the framework of the effective liquid drop model using the combination of constant asymmetry shape description for the mass transfer and the effective inertia coefficient.

利用有效液滴模型计算了偶偶超重核的α衰变半衰期，计算过程中采用了保持碎片体积守恒的不对称形状描述以及有效惯性系数计算Gamow势垒穿透因子。

Based on the analysis of the single-ring resonator, both the transfer functions of parallel-coupled structure and the ones of series-parallel structure in multiple-ring high order resonators are derived using the transfer matrix method. And the influences of the length of straight waveguide between rings, coupling coefficients between rings, coupling coefficient between straight waveguides and ring, the number of rings and the radii of rings on spectral response are also analyzed. Spectral response at drop channel with maximally flat response pass bands and sharper roll-off could be achieved by optimizing these parameters, so as to improve the performance of output spectral response.

在分析单环结构的基础上，利用传输矩阵法，推导了多环并联和多环串联两种耦合结构的高阶谐振器的传输函数公式，分别分析了并联环间直波导的长度、串联环间耦合系数、环与直波导间的耦合系数、环个数和环半径对相应结构输出特性的影响，通过优化这些参数实现下话路输出光谱具有通带的最大平坦性和过渡带良好的滚降特性，从而达到改善其输出光谱特性的目的。

The optimal collocated positions of secondary source with two microphones are studied and the separate of transfer function method that reduce the influence of acoustic feedback are developed based on plane wave transmission theory of sound and concept of transfer function in a duct. After, In order to identify the variation of the signals and find out individual correlation coefficient, cross correlation function analysis between primary noise signal and reference input signal is processed.

本文根据管道声场的平面波传递理论，进行第二声源与两个感测麦克风之间的位置配置研究，配合数位讯号处理的技术，发展出转移函数分离法，以消除声场回授的影响，之后，再将使用和未使用转移函数分离法的讯号个别与主要噪音源讯号做交互相关函数的运算处理，辨识讯号之间的差异，找出个别的相关性系数。

For a soil or rock of water - lacked , a heat transfer theoretical model is developed , which is a steady or unsteady , the results show that reservoir temperature , thermal diffusion coefficient , inlet temperature , flow rate of and run time of ground source heat pumps have an effect directly on heat transfer process of dhe . it can deduce that intermit running is favorable for this type of soils and rocks

对于贫含水地下岩土层建立了稳态与非稳态传热的理论模型，分析结果表明，岩土层的热储温度、导温系数、埋地换热器进水温度、流量以及地源热泵系统的运行时间或开停机比，都对埋地换热器的传热过程产生直接影响，可以推断，对于该类型岩土层的地源热泵系统，采用间歇运行将是有利的。

We made the light absorption coefficient measurement system with Nuclepore filter which were used to collected aerosol particles. The system has one laser beam which is split into two laser beam, one being information light which transfer through glass pipe, the other being reference light which transfer directly through atmosphere. so the measurement system could well eliminate the effect of all kinds of measurement errors which were caused by optical ullage and circuit noises and power fluction.

本测量系统利用核孔过滤膜采集气溶胶粒子，测量系统的光路由同一光束分为两路光组成，一路为信号光，通过光管传输，另一路为参考光，通过信号光和参考光相比很好地消除了测量系统中由于光管损耗、电路放大倍数的差异及光功率起伏等因素所引入的误差对吸收系数测量的影响。

From the results, it was observed that the transfer migrate coefficient for hendecane was larger than that for kerosene; the transfer mass resistance increased and decreased with adding Span 80 and TBP respectively; there was little effect by adding liquid paraffin.

发现苯胺在十一烷／水界面的传质系数比在煤油／水界面上的大；在油相中加入span80和磷酸三丁酯会使传质阻力分别增加和减少，而液体石蜡的加入几乎不影响传质速度。

The result shows that the cooling capacity increases with increasing generator heat transfer. The coefficient of performance of the system increases when the quantity of the generator heat transfer is increased from 6 kW to 7 kW, however it decreases in the range of 7 kW-9 kW. When the fan frequency increases, the temperature of liquid ammonia leaving condenser decreases, while the cooling capacity and the COP of the system increases. When the flow rate and inlet temperature of water/glycol increases, the evaporator takes more heat away and the cooling capacity and COP of the system increases.

其结果可发现当发生器加热量增加，系统温度增加系统冷冻能力增加，但其COP於6 kW-7 kW 系统COP会有先增加，於7 kW-9 kW，系统COP会有下掉的趋势；在冷凝器方面，当风扇频率增加，冷凝器温度降低时，冷凝器出口冷媒随之降低，系统冷冻能力会有所提高，COP亦增加；在蒸发器方面，蒸发器卤水出口温度及卤水流量增加，可以使蒸发器带走更多的热量其系统冷冻能力及COP也就会相对增加。

Nozzle flow was assumed to be frozen, and convective and radiative heat transfer from gas to solid wall was considered. Discretization of the governing equations was performed with two order upstream scheme, and radiative heat transfer equation was solved with Discrete Ordinates method. Absorption coefficient of water vapor was calculated by Leckner formula.

计算中，假定塞式喷管中的流动为冻结流动，考虑燃气向壁面的对流换热和辐射换热；采用二阶迎风格式离散控制方程，及DO模型离散求解辐射换热方程，水蒸气的吸收系数根据Leckner公式计算。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。