能量损耗

This paper presents the expressions of energy consumption in two types of blank holding: the conventional hydraulic cushion and cushion-compensating cylinder in single-action deep-drawing hydraulic press,and shows through comparison that the energy consumption in the latter one is far less than that in the former one.

用能量法推导了单动拉深液压机的两种压边方式即传统液压垫压边方式和液压垫—补偿缸压边方式的能量损耗表达式，以此为基础对两种压边方式产生的能量损失进行比较，结果表明后者远小于前者。

Comparing with the equation of common machine tools, this equation has three characteristics: It includes the variable frequency driver's energy loss;The variable frequency driver's no-sine voltage wave causes mechanical pulse losses in mechanical driving system;Equivalent palstance of main driving system is of uniform continuity.

该方程相对于普通机床功率平衡方程，具有变频器自身存在较大的能量损耗、变频器输出的非正弦波形电压带来的电气谐波损耗和机械传动系统的机械脉动损耗、主传动系统当量角速度具有一致连续性等三个重要特点。

In the process of transmitting and coupling of laser energy, there are some factors which caused energy lose. By doing experiment, these factors can be analyzed. Besides, since the instantaneity and complexity of the process, now it is difficult to completely understand the characteristics of laser ignition of energetic materials.

在激光点火系统中，激光能量的传输和耦合效果对激光点火非常重要，可用实验的方法测量能量传输过程中的能量损耗。

On the point of structure optimization, focusing on the optimization to the quantity factor of silicon cantilever, three kind of power attenuation which effect the Q value and the measure taken to lower the power loss are analysed systematically, and finally a high Q value silicon cantilever resonator with an actual Q reaches 540 is developed.

在结构的优化方面，着重对硅梁谐振器的品质因数进行了优化设计，系统地分析了影响Q值的三种能量损耗形式，研究了为减小其能量损耗而采取的措施，最终设计出在检测条件下实际Q值达540的高Q值硅梁谐振器。

Those rarely refer to the researches about water pressure function mechanism. In fact, the water flow intrudes upwards with a loss of the distance water and energy wastes for splitting rocks when confined groundwater intrudes upwards through coal seam water-resisting layer. The water flow under the coal seam scaleboard consumes more energy after it intrudes at a certain height.

实际上，煤层底板高承压含水层水沿隔水底板岩层向上导升过程中，存在一定的沿程水头损失和劈裂岩体裂隙的能量损耗，下伏含水层高压水在底板隔水层下部劈裂导升一定的高度后，在导升段的能量消耗很大，这时作用于有效隔水层段下部的实际水压已远远小于含水层中的观测水压，真正作用在有效隔水层上的水压为残余水压P_c，对底板有效隔水层起破坏作用的有效水压力亦应为残余水压。

I.! y P,{7 v: R; O0 D INTRODUCTIONIn most of the previous studies like [1-3], the effect of SRS in DWDM fiber opticsystems has been treated under various assumptions like undepleted pump approximation, wavelength independent fiber loss coefficient, triangular approximation of Raman gainprofile, negligible loss of energy whenever a short wavelength photon is transformed into a long wavelength photon (i.e., l i / l k ~ 1), equal power loading in all the wavelength channels and equal channel spacing.

P _ W/ I 在以往的绝大多数研究中，如[1-3]，人们都认为， SRS 在 DWDM 光纤系统中的影响是在诸多假设，如未衰减泵近似值，波长依赖光纤损耗系数，喇曼增益表的三角近似值，当短波光子被转变为长波光子时(i.e。， l i / l k ~ 1可忽略不计的能量损耗，各波长通道均等的动力负载以及均等的信道的频率间隔。

Furthermore, the thesis analyses the Loss and calculates the loss in switches, transformers and rectifiers in detail.

针对绿色开关电源的概念，论文详细的分析和计算了开关电源中引起能量损耗的各个方面，具体计算了开关电源中开关管，变压器，整流桥的损耗并提出具体的热设计方案。

The influence factors of energy transmission and energy loss in optical fiber ar e analysed.

着重分析了影响光纤传输能量以及光纤传输中造成能量损耗的因素。

After considering the earth rotation and non-conservative forces energy dissipation, the energy conservation equation was presented. The formula of the gravitation potential and tide-generating force additional potential of sun and moon were given in detail.

给出了地心惯性系下顾及地球自转和非保守力能量损耗的能量守恒方程，并且对日、月摄动位与引潮力附加位的计算方法作了相应的分析，同时介绍了加速度数据的处理方法。

Energy lost by environmental stress will be compensated in this or in subsequent stage through delaying developmental period at the range of ＜PNR and＞PRS.

因各种环境条件引起的能量损耗，在＜PNR及＞PRS的范围内可以通过延长该发育期或下一发育期的发育时间获得能量补偿。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。