查询词典 number system

Main contributions and achievements are as follows:A general non-equilibrium rigorous model for RDP is developed in this thesis. Based on the pseudo-homogenous assumption, two main factors reaction and separation are de-coupled, and an RDP model with the same format as that for a traditional distillation process is established. To solve the model with a large number of algebraic equations, modified M-K equations with tri-diagonal matrix form are developed based on the improved Separation Efficiency Functions, which greatly increases the iteration efficiency. This thesis also develops a general reactive distillation dynamic model. Through splitting of the differential variables based on SEFS, large-scaled differential algebraic equations can be solved with the improved Gear's algorithm which makes the dynamic model suitable for the on-line application. A simulation platform for the control loop design and evaluation of RDP by introducing control system equations into the dynamic model is also developed.A lactic acid purification pilot-scale RDP is investigated.

论文对热点问题——反应精馏过程的建模与优化控制相关技术进行了深入的研究，取得了一系列成果：1、建立了反应精馏过程机理模型，基于拟均相假设，将反应和分离过程进行解耦，推导出反应精馏过程的非平衡级稳态模型和动态模型，通过引入推广的分离效率函数，对模型变量进行了合理划分，显著提高了模型求解效率；将动态模型和控制系统方程结合，建立了反应精馏过程控制系统研究的辅助工具。2、全面分析了乳酸提纯反应精馏新工艺试验装置，利用本文建立的过程机理模型，对该试验装置进行了稳态和动态性能分析及水力学核算；设计和分析了单边质量控制方案，比较了间接和直接物料平衡控制两种方案的控制性能。

The minimal number of the generators or the minimal set of the genera- tors of an algebraic system, is a very fundamental problem.

在代数体系的结构和分类理论当中，最小生成元的个数及其具体的刻划是一个基本问题。

Finally, the scheme " reset chip + pull-up resistor" was selected through a large number of tests considering the alterability of product state and operational reliability. The result shows that the initial state control problem in torpedo control system has been completely solved.

在充分试验验证的基础上，考虑到产品状态更改的便捷和工作可靠性，优选了"复位芯片+上拉电阻"解决方案，从根本上解决了因初态不稳定引起的控制系统不可靠的问题。

In practical applications of the data collection system designed to quantify the number of external analog signals into a computer for processing.

在实际的应用中数据采集系统的目的是把外部模拟信号进行数字量化后送入计算机进行处理。

Therefore, the logic analyzer system as the number of effective detection tool, has been great development in recent years.

因此，逻辑分析仪作为数字系统的有效的检测工具，近年来得到了很大发展。

The early introduction of many new furniture or a large number of manufacturing, the use of color and soft furniture, decorative fabrics, patterns, including asymmetric disconnected curves, flowers, twisted vortex ornaments, shells, the Chinese-style decorative arts, musical instruments (violin, horn angle system, drum), a symbol of love, wreaths, shepherd scenes booty ornaments (Battle of the decorative layout of the symbol), flower and animal.

许多新的家具或制造大量早日推出，色彩和软家具，装饰面料，图案，包括非对称曲线断开，花卉，扭曲涡饰品，贝壳，中国式的装饰艺术，乐器使用(小提琴，喇叭角系统，鼓)是爱情的象征，花圈，战利品饰品，花卉和动物牧羊人的场面。

The microspore was more like a tetrahedron, whilethe polar was more like a triangle. The number of microspore in every anther wasbetween 2600～3600, so the amount of pollen was quite large that it was propitiousto spread and pollination. P/O was 8088 and the breed system was singleheterosexual copulatoryb. The viability of pollen was normally above 50%. The testof pollen culture showed that the viability of pollen was up to the tiptop under thehigher temperature and lower humidity (38℃,40%),while it was weakest under thelower temperature and lower humidity (16℃,40%).The OCI is 4, and the breedsystem was belong to autocopulation. If it was heterosexual copulatory, there must beintermediums for pollination. It was recorded there were more than 40 species ofinsects on the anthotaxy or followers of Malania Oleifera. Under different weather,different living environments and different plants the frequency and rush hour of theinsects to visit the followers were different. Actions of different kinds of insect werealso different. According to the results of the observation, the form of fluid and seedof Malania Oleifera mostly rely on the action of insect pollination, especially thebees.

蒜头果的花序为聚伞形花序，有小花8～10朵，小花较小；按花粉大小等级划分，蒜头果的花粉粒属于小的范围；花粉粒呈近四面体，极面为近三角形：每粒花药所含的花粉粒在2600～3600粒之间，花粉量较大，有利于花粉的传播和授粉；胚珠比值为8088，繁育系统为专性异交类型；花粉生活力一般在50％以上；在不同温度湿度条件下测得蒜头果花粉的生活力在高温低湿(38℃，40％)的条件下最高，在低温低湿(16℃，40％)的条件下最低；杂交指数值为4，繁育系统自交亲和，异交，需要传粉者；记录到的访花昆虫有40余种，访花昆虫的访花频率及高峰时间不同，不同种类的昆虫的访花行为也是各有所异；从观察的结果看，蒜头果的种实的形成大多数依赖于传粉昆虫的活动，其中主要是蜂类。

These functions are related to a number of System component APIs.

这些职能相关的系统组件的API的数量。

At the same time, as the economic transformation and social improvement, there has been a great change in the life of city, many new fields appear on the scene of Sub-district management, for example,"institution people" becomes "social people"; since China has gone into aging society,aged people have increased a lot; ever-growing number of laid-off workers; more and more floating population; All these new situations apparently increased the amount of service targets and bring pressure to Sub-district management, it is hard to deal with in the old system.

例如，"单位人"转变为"社会人"，增加了街道办事处的管理和服务对象；中国已经进人老龄化社会，各街区的老龄人口显著增多，老年人口的活动空间基本上在家庭所居住的街区，这就增加了街道办事处的工作内容；改革中出现了大量失业下岗人员，需要街道办事处的(来源：A32BC2d论92文网www.abclunwen.com)关心和帮助；随着城乡社会流动加快，城市街区的外来人口越来越多，他们既为街区的发展作出了贡献，也给街区的管理带来了压力。

This paper proposes an universal e-cash system based on partially blind signature which can be divided to small pieces of arbitrary number one time, so-called single-divisibility.

针对通用电子现金系统的难点在于其可分性，本文提出的方案以SK00系统为基础，实现其转移性(SK00公开问题)，并给商家颁发电子执照行使银行的部分职能，进而提出了一个显式可分(即一次性任意分割电子现金)的离线电子货币系统；同时利用以前的技术实现了一个采用树型结构的可分电子现金系统，并比较了这两个方案和以前方案的效率；二者安全性基于离散对数问题和强无碰撞Hash函数安全性；最后本文利用代理签名给出了一个新的部分盲签名方案。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。