查询词典 emission control

A great number of dynamometer experiments are carried out to investigate the effects of structure characteristics of the injector, configuration of combustion chamber, design of the bypass valve and fuel injection phasing on the performance, emission, fuel consumption of the engine during light load operating conditions. After a final optimization and other practical considerations, the control MAPs for the two-stroke DISI prototype engine are obtained. The torque performance, fuel consumption and emission economy of the engine is tested and compared with those of the original carbureted engine.

并且通过大量的发动机台架试验，分析了喷油相位和喷油器的结构参数、燃烧室形状、旁通孔的大小等参数对发动机低速低负荷工况下的性能、燃油消耗和排放的影响规律；通过最后的优化和实际的考虑，获得了最终的二冲程直喷发动机样机的控制MAP图，试验研究了其动力性、燃油经济性以及排放性能，还做了该样机和原化油器发动机的动力性能、燃油消耗率和排放性能的比较。

Based on international front and hotspot in atmospheric chemistry and aerosol study, considering domestic characteristics of atmospheric pollution, the laboratory has included main research areas below: atmospheric chemical reaction, aerosol chemistry, photochemical pollution, acid deposition chemistry, atmospheric brown cloud, emission characteristics and emission factors of PM and VOCs emitted from various sources, indoor air pollution and its control techniques, health effect of particulate matters, and so on.

研究室的主要研究方向始终瞄准国际大气化学和气溶胶研究和发展的前沿和热点，结合中国大气污染的自身特点，在大气化学反应、气溶胶化学、光化学污染、酸沉降化学、大气棕色云、各种污染源颗粒物和 VOCs 的排放特征和排放因子、室内空气污染及其控制、大气污染的人体健康效应等方面进行实验研究，在上述各方面得出具有国际先进水平的研究成果，建立国内领先和国际先进的学术研究和实验科学体系，确保研究室的学术地位和知名度，与国外相关的研究机构保持同步的发展态势并建立平等的交流机制。

Company's franchise of various brands and various types of IC DIP, SMD diode and audion, infrared emission, acceptance control, battery and a variety of modules, crystal and so on, have a wealth of electronic product manufacturing and sales experience and a good international reputation, the company covers product sales AT, MAXIM, PHILIPS, DS, TI, CYPRESS, ST, ON, such as international brands; Products widely used in networking, computer, aerospace, communications, electronic instrumentation, display control, industrial control, medical equipment, access control, POS terminals, audio home appliances and consumer electronics products such as high-tech fields.

公司专营各种品牌IC和各类直插、贴片二三极管，红外发射，接受管，电池以及各种模块、晶振等，有丰富的电子产品生产与销售经验和良好的国际信誉，公司产品销售涵盖了AT，MAXIM、PHILIPS 、DS、TI、CYPRESS、ST，ON等国际知名品牌；产品广泛用于网络、电脑、航天、通讯、电子仪表、显示控制，工业控制、医疗设备、门禁、POS终端、家电音响及消费类电子产品等高新领域。

In the last chapter,we study the control problems of the distributedparameter system governed by a class of higher order pseudohyperbolicequation related to the symmetric regularized long wave equation.we havediscussed the controllability and optimal control problems.we have obtainedcompatibility condition of the constraint when the state is controllable,therepresentation of the optimal control for both the time optimal control problemand the optimal control problem of minimum energy type,and the equationsatisfied by the minimum time.we have shown that the optimal control belongsto the boundary of the admissible control set.

在第六章中，我们研究了与对称正则长波方程相关的一类高阶拟双曲型方程支配的分布参数系统的控制问题。讨论了系统的状态能控性问题和最优控制问题，给出了状态能控时的约束相容性条件，给出了最速控制问题、最小能量型最优控制问题的最优控制表达式和最速时间所满足的方程式，证明了最优控制属于控制集合的边界。

The paper, first of all, particularly expounded the new characteristics of the control within the accountants of the enterprises on the accounting computerization basis-control object dualization, control key points singularity, control form procedure, control content data, control range magnifying, and control technique modernization; then put forward the new methods of increasing the enterprises.

具体地阐述了在会计电算化条件下，企业会计内部控制的新特点———控制对象二元化、控制重点单一化、控制形式程序化、控制内容数据化、控制范围扩大化、控制技术现代化；其次提出了企业会计内部控制应增加的新方法，并作了相关的建议。

Results: For CRF rats which made by fed with feedingstuff contains 0.75% of adenine for 4 weeks, the weight of model control group rats were lighter than that of Yi Shen Granule groups rats. The water wastage of Yi Shen Granule groups rats were less than that of model control group rats. Compared urine volume, the ejectable quantity of Na, K, Cl and proteinuria in 12 hours , the data of Yi Shen Granule groups rats were less than that of model control rats. The specific gravity of Yi Shen Granule groups rats was higher than that of model control rats. The numerical value of RBC, HGB, HCT, MCV, MCH in model control group was lower than that in Yi Shen Granule groups. The content of BUN and Cre in serum of model control groups rats were higher than that of Yi Shen Granule groups. The results of excretion test of phenolsulfonphthalein showed that the RPF of Yi Shen Granule groups rats was larger than that of model control group rats.

结果： 益肾颗粒可以使0.75%腺嘌呤饲喂法致大鼠慢性肾衰模型动物体重增长加快；给药后观察，给药组动物饮水量较少，12小时尿量、12小时钠、氯、尿蛋白排泄总量均显著低于模型组动物，尿液比重值较大；模型组动物的RBC、HGB、HCT、MCV、MCH等指标的数值较给药组动物的数值小；给药组动物血清中BUN和Cre的含量较低；给药组动物酚红排泄率均高于模型组动物；给药30天，处死各组动物，尸解观察，模型对照组动物肾脏呈灰白色，各给药组动物肾脏表面均出现不同程度的红、白相兼的颗粒状纹理，各组动物肾脏均肿大，切面可见不同程度的腺嘌呤结晶沉积。

The aerodynamics characteristic of the innovative control surfaces which are implemented on the flying wing aircraft with large aspect ratio were introduced, and elevon and split rudder were involved. And the control effects on three axis were analyzed basing on computetional fluid dynamics method. The concept of control volume was imported to introduce parameters-based method of control surfaces design. The control effect requirements of the control surfaces were also evaluated. The original design of certain aircraft's control surfaces was modified.

介绍了在该新布局飞机上采用的升降副翼和开裂式方向舵等新型操纵面的气动特点，并在计算空气动力学的基础上分析了其三轴控制效率，引进舵容量的概念提出了操纵面的参数化设计方法，基于飞机的可控性对各新型操纵面的操纵效率需求进行了评估，最终对某型飞机的操纵面初步设计进行了修正。

In the design of automatic control system for isomerization unit from heptane tower of PX devices, single-loop control is used in the control programme. There is a total of 11 circuit , of which is 8 single-loop control system and 3 cascade control system. It has done the choice and relevant calculation on the controller, control valves and measurement devices used in the control system. There is a total of eight chapters in this design.

在对PX装置异构化单元脱庚烷塔自动控制系统进行设计时，控制方案基本采用单回路控制，总共有11个设计回路，其中单回路控制系统8个，串级控制系统3个，并对控制系统所要用到的控制器，控制阀和测量元件等进行了选择且进行了相关的计算。

Secondly, the quality loss model of the quality control, quality problem tracing back and the quality improvement is constructed, which minimizes the quality loss in quality control system. The quality loss model combined with Duncan model and Taguchi quality loss model is studied, the control parameters such as the upper control limit and the lower control limit are computed for the quality control in manufacturing. The Taguchi quality loss model is improved with the fuzzy theory, and the validity of the quality loss model is validated by the instance of the principal axis quality control.

2构建了产品质量控制、质量问题追踪和质量改进的质量损失模型，使质量控制系统运行过程中质量损失最小；研究了由Duncan模型和田口质量损失模型相结合的质量损失分析模型，为过程质量控制提供了上下控制限等参数，利用模糊理论对田口质量损失模型进行了改进，并通过主轴质量控制实例验证了质量控制损失模型的有效性。

In the process of realizing the remote control of electromotor meter, it probes into the realization of the GPRS wireless collector emphatically which is on the kernel ground. It adopts the means of area-centralizing control to manage the electromotor meters affiliated by it. It communicates with the central control station by GPRS Modem and transmits the commands and data to the instrument by wireless, which makes the collection and transmission of the field data come true. In the process of realizing the remote control of voltage transformer meter, according to the actual requirement, it adopted the chips and modules that are different from the front means to design and realize the GPRS wireless communicating controller corresponding with the devices. It also introduces the mixed—mode Communication integrating the GSM with GPRS to settle the problem that too many GPRS terminals connecting with the central control station synchronously will affect the performance of the central control station.As a whole system, the central control station is the kernel of the digital oil field.

在油田电机表远程控制方案实现中，着重介绍了处于核心地位的GPRS无线集中器的实现，它采用区域集中控制的方式管理下属的石油电机表，与主控站采用GPRS Modem进行通信，与仪表则采用无线电方式进行命令和数掘的传输，实现了现场数据采集传输；在配电变压器表远程控制方案实现中，根据应用需要，采用与前一个方案完全不同的硬件芯片和模块，设计实现了与仪表设备——对应的GPRS无线通信控制器，并针对同时挂接在主控站上的GPRS终端太多会对主控站性能产生一定的影响这个问题，引入了GSM和GPRS相结合的混合通信模式。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！