在进行中的
- 与 在进行中的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Firstly, it discusses the principle of adaptive interference chancellor, including broad band signal and narrow band signal; Secondly, it analysises one common algorithm used in adaptive interference chancellor, that is, LMS algorithm and its anamorphosis algorithm especially normalized LMS algorithm pointing out their relationship. After then, the paper talks about the structure and reality of canceling broad band noise in narrow band signal and narrow band noise in broad band signal and gives it's result simulation analyzing the factors affecting the power of the algorithm. In the last party, it gives the hardware design and assembly language software design using TMS32OC3 1, including the result of simulating.
首先,本文讨论了自适应干扰对消的原理,并对窄带信号和宽带信号两种进行了分别分析;然后本文对自适应干扰对消中常用的算法—LMS算法进行了分析,同时也讨论了LMS算法的变形算法,尤其是归一化LMS算法,并指出了这些算法的相同和不同之处;此后,本文讨论了窄带信号中的宽带干扰对消和宽带信号中的窄带干扰对消的结构及实现方法并给出了住址的结果,分析了影响干扰对消效果的因素;在论文的最后,给出了用TMS320C31实现窄带信号中的宽带干扰对消的硬件设计和汇编程序设计,以及汇编语言程序的结果,并就此结果与高级语言程序的结果作了比较。
-
The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.
本文主要工作既创新点体现在以下几个方面:(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型,并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题,如边界条件、空间离散格式和时间推进格式、时间步长选择等问题,为大涡模拟在室内气流计算中的广泛应用打下了基础;(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布,并探讨了多射流流场的动态特性和流动规律;(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标,首次系统地提出了动态热舒适评价指标体系的概念:即基于时间平均参数的热舒适指标PD、PPD、PMV;基于瞬时参数的瞬时热指标IPD、IPPD、IPMV;基于时间平均热舒适指标TAPD、TAPPD、TAPMV;以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV,并分析了四类热舒适指标的差异性和计算方法,还以PD值为例对四类指标分别进行了计算;(4)基于数十种工况下空调房间大涡模拟的结果,研究了空调建筑上送上回和侧送侧回两种情况下热分层现象,并探讨了热分层的基本规律,首次提出了避免热分层现象的判断公式;(5)在暖通空调领域,首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备,完成了与大涡模拟相对应的模型试验,并把实测结果与仿真结果进行了对比,说明LES在室内气流仿真方面是一种很有前景的方法。
-
This fault is described below: In some conditions, the offer/answer signaling for media negotiation will be unmatched. Present paper also analyzes present solution and point out its drawback. Proposing a new solution resolving the problem that offer/answer is unmatched in original offer/answer mode of early media negotiation. This solution resolves the problem from two aspects including SDP message content and SIP signaling integrity.
本文贡献可归纳为以下几个方面:(1)分析了IMS系统中多实体会话建立的信令流程,并对其中早期媒体协商的过程进行了研究,发现了原SIP规范所提供的媒体协商所使用的提供/应答模式应用在早期媒体中的缺陷:在某些情况下,用于进行媒体协商的提供/应答信令出现不匹配情况。
-
The results showed that with treatment of the fixative solution added with antimonite,the free Ca2+ in pear different organs and tissues could be changed into antimonite calcium and precipitated in situ,which,after being stained,appeared as black particles under electronic microscope,whereas such particles could not be observed in the treatment without antimonite.
结果表明:在固定液中加焦锑酸钾处理进行制样,梨树不同器官或组织细胞中的自由态Caa2+,都能生成焦锑酸钙在原部位沉淀,经染色后在电子显微镜下呈现出黑色颗粒,而固定液中不加焦锑酸钾处理的则没有这种颗粒。
-
Firstly we merge the edge detected image and the same-size voronoi-diagrams, then adopt the recent Antipole strategy technique about data structure aimed to optimize proximity queries to speed up the search process, and finally search one tile image with the similar shape in the data base to mosaic the voronoi region.
首先利用图像融合技术将原始图像提取出来的边缘信息图像与一幅相同尺寸大小的沃龙诺依图像进行合成,然后采用优化近似查询中关于数据结构的"反极策略"来加速搜索过程,根据模式识别中的形状相似技术在数据库中查找与需要填充的区域形状最接近的碎片图像进行镶嵌。
-
Church patient at 3 o'clock type, function of flesh of type waist back exercised a method at 5 o'clock. 1.2 instruments prepare an operation to answer to undertake between operation of bigger laminar flow purifying device, line of aircraft of route of X of preparative C arm, X defends take, knife of appearance of anaesthetic machine, custody, report, ambipolar report coagulates the place in reaching art wants all sorts of article and drug, have comprehensive examination. 1.3 postures put itinerate nurse to lie arched Fu a bracket put go up in operation bed, adjust good bracket width and height according to patient height, weight.
教会患者三点式、五点式腰背肌功能锻炼方法。1.2仪器预备手术应在较大的层流净化装置手术间进行,预备C型臂X线机、X线防护服、麻醉机、监护仪、电刀、双极电凝及术中所需各种物品及药品,并进行全面检查。1.3体位摆放巡回护士将弓形俯卧位支架摆放在手术床上,根据患者身高、体重调整好支架宽度和高度。
-
The professional content management system, including the papers submitted papers to amend, review papers and user management In the development process, the attention to bring it into conformity with the operation of business processes and systems to the comprehensive, universal, making the system not only applies to an educational institution In the development of methods of choice and chose a life cycle with the prototype of the method of combining law, follow the system research, systems analysis, system design and implementation of four major stages of system design, and in the specific design, to take the evolution of Prototype, with the use and users of the system have deepened the understanding of a certain part or parts of re-analysis, design, implementation In the development of the choice of language, using mainly carried out ASP programming language development, the use of SQL databases, so as to ensure data integrity and consistency This results mainly from system analysis, system design, systems implementation and use of several areas are introduced
本系统管理内容专业,包括论文提交、论文修改、论文审核以及用户管理等等。在开发过程中,注意使其符合操作的业务流程,并力求系统的全面性、通用性,使得本系统不只适用于一家教育机构。在开发方法的选择上,选择了生命周期法与原型法相结合的方法,遵循系统调查研究、系统分析、系统设计和系统实施四个主要阶段进行设计,而在具体的设计上,采取了演化式原型法,随着用户的使用及对系统了解的不断加深,对某一部分或几部分进行重新分析、设计、实施。在开发语言的选择上,主要利用ASP 编程语言进行开发,使用SQL数据库,从而保证了数据的完整性与一致性。
-
The lead-time of order and the time of transportation in each stage and of whole chain are the main performance index at present research stage.
文章介绍了供应链中的"牛鞭效应"以及Witness的基本应用,讨论了在供应链系统中利用Witness软件进行仿真的方法,采用了由钢铁公司、钢材服务中心、部件生产商和汽车厂所组成的供应链结构进行仿真,整个供应链和供应链上各节点的订货提前期和运输时间是所介绍的模型中的主要供应链绩效指标。
-
The paper introduces the"bullwhip effect"of a supply chain and the application of software Witness, and discusses the simulation of software Witness in the supply chain system. The structure of supply chain in the paper is composed by steel company, steel service center, parts manufactures and car factories. The lead-time of order and the time of transportation in each stage and of whole chain are the main performance index at present research stage.
文章介绍了供应链中的"牛鞭效应"以及Witness的基本应用,讨论了在供应链系统中利用Witness软件进行仿真的方法,采用了由钢铁公司、钢材服务中心、部件生产商和汽车厂所组成的供应链结构进行仿真,整个供应链和供应链上各节点的订货提前期和运输时间是所介绍的模型中的主要供应链绩效指标。
-
This paper presents a method of NAT port switch. For fast mode, negotiation of packets encapsulation methods is used by increasing field in SA payload. In the process of negotiation of encapsulation method, this paper solve the problem of updating the upper check sum through the use of NAT-OA data packets.
对于快速模式的修改,通过在SA载荷中增加字段的方法来进行数据包封装方式的协商;在封装方式协商的过程中,通过使用NAT-OA数据包,使得通信双方即使经过了NAT转换,依然可以进行正确的校验,解决了NAT无法更新上层校验和的问题。
- 推荐网络例句
-
In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
-
Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
-
Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。