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Through process simulation and optimization, a double-tower process with depropanizer and propane fractionator and without deethanizer is presented for gas fractionation as well as optimized process conditions of different units.

通过装置的流程模拟和优化，提出了气体分馏装置新双塔流程(无脱乙烷塔，只有脱丙烷塔和丙烯精馏塔)，以及各装置的优化工艺条件。

Through establishing the functional of the source pulse which is based on the concept of "usable energy" in the received pulse and then extremizing the functional by means of the calculus of variations, the mathematical models of the optimized source pulse waveforms are shown to be associated with the eigenfunctions of a homogeneous Fredholm linear integral equation of the second kind. An efficient algorithm is developed for numerically solving the integral equation models.

论文研究了基于延迟反射脉冲序列无源标签的UWB RFID系统的基本工作原理并进行了详细的信号描述和分析，通过建立基于接收脉冲"有效能量"概念的源脉冲波形函数的泛函和使用变分计算泛函极值，得到了相关于第二类齐次Fredholm线性积分方程特征函数的源脉冲波形最优解数学公式模型，并开发了一套有效的数值求解算法。

Aim at the question of maximum freight train arrangement, this article established an optimized simplification model.

针对货物列车的最大铺画问题，本文建立了1个简化的优化模型。

At last, as two key parameters, the modulation index and modulation frequency are optimized.

最后还对调制中的两个关键参数调制指数和调制频率进行了优化分析。

Considering reactor synthesis conditions, the coefficients of calculating the ammonia standard fugacity have been optimized and the results of thermodynamic model agree well with experimental data.

本文采用扩展的UNIQUAC方程对NH〓-CO〓-H〓O-urea体系气液平衡进行模拟计算，以满足尿素生产系统中高压系统的流程模拟计算的需要，并重新回归了模型氨组分的标准态逸度，使模型计算结果与实际数据更为相符。

Based on a new modified Wallace multiplier structure, named bi-forked Wallace multiplier structure, this paper presents the design of a highly re-configurable Multiplier for VLIW multimedia-processor. We found a reusable design method to extend multiplier with full adder array. The Structure can enable 32/16/8 bit operands, and has been optimized for speed and area.

在VLIW多媒体芯片的设计过程中，针对传统乘法器与加法器的不足，提出了一种新的分叉华莱氏树结构的乘法器模型，采用可重用的模块化设计思想，通过重用一位全加器阵列对乘法器进行扩展，处理器可以在一个乘法器单元内部同时支持多个32/16/8位的乘法运算，同时使乘法单元的速度和面积均得以优化。

The simulation results demonstrate the rightness and efficiency of FEM. Based on the studies above, the detective characteristics of FMI are examined, a few device structural parameters are numerical analyzed and optimized. The response of each type of formation model is simulated, and gray-scale images are used to express the resistivity results. Adopting 8 electrodes manner to measuring inclined bed, a full-bore resistivity image is obtained, and the relations between the image and the inclined bed are pointed.

在上述工作基础上，考察了全井眼地层微成象仪的探测特性；对有可能影响测量结果的仪器结构参数进行了分析和优化；模拟各种地层模型的测井响应，并用灰度图象表示电阻率井壁成象结果；采用8极板同时测量的方式，对倾斜地层进行模拟测量，得到了全井眼电阻率成象结果，并指出了成象特征与地层倾斜方向之间的关系。

It is mainly optimized for downloading images, and includes both thumbnail and full-screen image viewers.

这主要是优化下载图片，既包括缩略图和全屏幕图像观众。

The article makes a comparison among different types of bus, bus transmission signal and several familiar topologies of front-end converters and load-end converters. Finally, the half bridge converter with full-wave rectifier based on the high-frequency parallel-type AC bus bar is chosen as circuit structure and optimized. The working mode under different condition of the circuit is analyzed and a mathematical model is set up under continuous current mode. Simulation result is used as comparison.

通过对比不同类型的母线、母线传输信号以及各种常见的前端变换器拓扑和负载变换器拓扑，确定了基于并联型高频交流母线的半桥变换器加全波整流作为电路拓扑，并优化了电路的结构，分析了基于不同工作状态下的电路结构并建立电流连续模式的数学模型，并与软件仿真结果进行对比。

The LTC.3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers.

Linear 公司的LTC3588-1是压电能量收集电源，集成了低噪音全波整流和高效降压转换器，组成完整的能量收集解决方案，最适合高输出阻抗的能量源如压电传感器。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。