过程控制

The identification and study of the control factors that regulate gene expression at different stages are of great value to elucidate the mechanism of spermatogenesis and spermiogenesis. Such study can also provide foundation and cues to investigating the mechanism of infertility and immunological contraception.

作为体内高度分化的雄性生殖细胞，精子发生过程中经历了从形态到生化的复杂变化，在这一过程中有一系列的特定基因按严格的时空顺序转录和翻译，因此寻找和研究不同发育阶段的差异表达的基因，将有助于最终阐明精子发生的机理，并为控制生育和不育机理的探索提供新的线索。

In plastic processing, temperature control mainly includes the temperature control of material tube, spray nozzle and mould.

在塑料加工过程中，温度控制主要包括料筒、喷嘴和模具的温度控制。

To keep control valve safe and stabile for use on industry, this paper research the dynamic character of control valve in controlling process.

调节阀如何安全稳定地工作关系到整个控制过程的好坏，本文主要研究调节阀工作过程中的动态特性。

Statistical process quality control is a useful and effective means in product quality control of mechanical process.

统计过程质量控制方法是机械加工中产品质量控制常用而有效的手段之一。

Chapter two, concerning the generating process of statistical data and its influence factor, researches on the statistical data quality control system.

第二章则以统计数据产生过程、统计数据产生过程中各环节的各影响因素为对象，展开对统计数据质量控制系统的研究。

The objects and significance of automatic control in steelmaking and gas analysis in converter dynamic control are introduced.

介绍了目前国内外炼钢过程的自动化控制的意义及其现状，阐述了转炉炉气分析动态控制技术的基本组成和工作原理。

The method of the invention comprises the steps as follows: step 1: each frame of image is divided into N areas according to the sequence of coding and the bit flow length of each area after coding is recorded; step 2: according to the comparison result between the bit flow length of the coded area and a prearranged gate limit, the number of non-zero DCT coefficients of non-coded areas allowed in the coding process is adjusted.

本发明提供一种码率控制方法及控制装置，方法包括：步骤一、对于每帧图象，都按照编码的先后顺序划分为N个区域，并记录每个区域编码后的码流长度；步骤二、根据已编码区域的码流长度与预定门限的比较结果，来调整未编码区域在编码过程中所允许的非零DCT系数的个数。

The failure process of the unrepairable network system can be considered as a single-controller stochastic game.

针对不可修复的网络系统，安全失效过程被看作一个攻击方控制状态转移的随机博弈过程。

Batch process plant described by subprocess is modeled by timed Petri n ets, and heuristic dynamic optimization algorithm is proposed to control the pla nt.

用赋时Petri网来建立以子进程表示的批处理过程，并提出启发式动态优化算法对过程进行控制。

The main point s and basic debugging methods of reconstruction of suchlike control system are described in detail.

通过对原料厂GDS监控系统的技术改造及过程的描述，说明计算机控制系统改造的思路、方法并较详细介绍了这类控制系统改造的要点与调试的基本方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。