简捷

The following points are emphasized:The operation models of adiabatic and diabatic distillation have been set up and the operation block, thermodynamics model and mathematical model in the simulation have been determined as well;(2)Based on the simulation and exergy analysis with Aspen Plus program, shortcut distillation design—DSTWU model and rigorous distillation design—RADFRAC model, the author has determined the heat duty, exergy losses and the distribution of exergy losses along the adiabatic column, which will help the simulation and optimization of the diabatic distillation;(3)Diabatic distillation under various operation conditions has been simulated by using energy balance method and exergy analysis;(4)How the different mixture and the various degree of separation, number of trays and feed location influence exergy saving in diabatic distillation have also been discussed;(5)On the basis of the total exergy losses along the column, different schema of the heat transfer distribution along the column have been compared and analyzed;they can be classified in three categories: heat duty equipartition approach, empirical approach, separation degree matching approach. In conclusion, different heat transfer distribution along the column will have effect on total exergy losses. In particular, most satisfactory results have been obtained by using separation degree matching approach. In order to diminish the exergy losses, heat transfer distribution should meet the needs of the request of separation degree.And on this premise, the author makes his suggestion in increasing the proportion of heat supplied to the tray with minimum exergy losses and decreasing the proportion of heat supplied to the tray with the maximum exergy losses.

本文对透热精馏过程进行了模拟并对其节能效果的影响因素做了较为全面的分析和深入的研究，主要研究内容如下：(1)建立了常规精馏和透热精馏过程的模拟操作模块、热力学模型以及数学模型；(2)利用化工模拟软件Aspen Plus并分别采用DSTWU简捷模型和RADFRAC严格计算模型对常规精馏进行模拟计算和有效能分析，确定常规精馏塔的公用工程热负荷、有效能损失及有效能损失在塔内的分布，为透热精馏的模拟和优化提供数据参考；(3)对不同物系在不同分离度条件下进行透热精馏的模拟，分别采用能量衡算法和有效能分析法进行计算和分析；(4)探讨了各种因素如物系的选择、不同分离度、塔板数、进料位置对透热精馏节能效果的影响；(5)以全塔总有效能损失为比较基准，对热量在塔内的三种分布方案即热负荷平均分配法、经验法和分离度匹配法进行了对比分析并得出结论：塔内热量的不同分布方案对于全塔总有效能损失会产生影响，其中以分离度匹配法的节能效果最为理想，为减少有效能的损失，应使塔内的热量分布满足各塔板的分离度要求，并在此前提下，尽量减小有效能损失大的塔板的热负荷和增加有效能损失小的塔板的热负荷。

A simple and rapid microwave-assisted extraction procedure was developed and optimized for determination of ergosterol in Agaricus brasiliensis.

建立一种简捷的微波辅助提取方法以测定姬松茸菌丝体中麦角甾醇的含量。

With the guidance of object-oriented idea and the theory of flexible software, report is described as a three-layer model that consists of the origin-data layer, the data-processing layer and the format layer. The format of report is separated from its data, which makes the data variable, the format fictile and the processing of data modularized. The problem of fixed report template and data is solved. Users can adjust reports format and content easily at any moment. The data of report are dynamic and can be refreshed when needed.

它以面向对象的思想和柔性软件系统理论为指导将报表描述为包含原始数据层、数据处理层和格式层的三层结构模型，将报表数据与格式分离，使报表数据变量化、报表格式可塑化、数据处理模板化，从而解决了报表模板和数据固化的问题，使用户可以随时根据情况需要简捷方便的调整报表的格式和内容，并可以实现报表数据的动态赋值和自动刷新。

The fastest way to double your money is to fold it up and put it back to your wallet.

能使你的钱翻倍的最简捷的方法是把它对折起来然后放回到你的钱包里。

Although do same thing to also want to learn to find more the method of forthright!

即使做同样的事情也要学会找到更简捷的方法！

With the development of science and technology, the gantry crane designers pay more attention to science and simpleness.

随着科学技术的发展，龙门起重机的设计更注重科学和简捷，研究的方向是安装的便捷性，工作的可靠性、平稳性及节能环保性。

Introduce programmable calculation methods of heat exchanger by using graphic integration that has advantage of being simple and accuracy , obtain distribution data of temperature of fluid within the heat exchanger, and contribute to heat transfer mechanism analysis.

介绍用图解积分法进行换热器工艺的程序化计算方法，此法具有简捷、确的优点，且同时可获得换热器内流体的温度分布数据，有助于对传热机理的分析。

This paper made an improvement and development on the traditional graphic solution method for designing planar crank-rocker mechanism in accordance with travel velocity-ratio coefficient K .

对传统的按行程速比系数K设计平面曲柄摇杆机构的图解法做了改进，使该法在解决带有辅助条件的设计问题时更为简捷。

This is a more complete graphical method.

本文提出用向量作图法解等角应变花的问题，这是一种比较完整的图解法，只需利用比例尺、三角板和量角器，就可用作图法简捷地得到所求的结果。

Through corresponding categorized algorithm to helminth eggs in the computer, we have structured The Image Recognition System of Common Human Helminth Eggs (OvRecognizer 1.0), and have realized tentatively the automatic image recognition of human common helminth eggs.

研究中，通过对寄生虫虫卵图像的色彩特征和纹理特征的分析、选择和提取研究，以及大量的样本测试和系统参数调整，使系统对样本的分类精度也达到了较高的水平；简捷而有效的程序设计还使实验系统的处理速度远高于国内外同类项目。

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。