With regard to the impact of transfer delay on multimedia digital service in computer network, this paper proposes a flow control scheme, a self-adaptive proportional-plus-derivative flow controller, and analyzes the stability and feasibility.
针对计算机网络中多媒体数据业务传输存在时延的情况,设计了一种自校正比例微分流量控制器,并从理论上分析和证明了系统的稳定性和可行性。
In this regard, proposals to transfer financial responsibility for the main non-work income support scheme (Revenu minimum d`insertion, RMI) to the same governmental level that is responsible for job activation policy is a step forward.
在这方面,如下这些建议,即把主要非工作收入补贴计划的财政责任转移给一个同等级的、负责鼓励就业政策的政府部门,是向前迈进了一步。
The unsteady flow and heat transfer in pressure wave refrigerator is investigated numerically in the present paper. The Godunov scheme and control volume method are used to solve the 1D Euler integral equations and heat transfer equation respectively.
建立了振荡管内非定常流动与传热的数学模型,分别采用Godunov格式和控制容积法对气动方程及传热方程进行离散,得到了管内压力波形、气流速度及温度随时间的变化历程。
From the scheme of the method and analyses of its static jitter and jitter transfer performance, it can be known that the method has smaller output jitter, better transfer performance and wider catching bound than some other methods, such as bit-leaking method.
从该方法的基本原理,以及对它的静态抖动和抖动转移性能分析中可知,相对于以往的减小指针抖动的方法,如比特泄漏法等,自适应预测法具有输出抖动小,抖动转移性能好,捕捉范围宽等特点。
ABSTRACT Based on analyzing the flow and heat transfer features of vertical pipe in quench chamber, a numerical model is first presented per to multi-phase turbulent flow theory. The partial differential equations are deduced in detail. The QUICK scheme on uniform grid is employed in discretising these equations and boundary condition.
本文在分析煤气化炉激冷室下降管工作特点的基础上,利用气固两相湍流理论建立了激冷室下降管的数学模型,推导出控制方程组,应用QUICK均分网格格式对控制方程和边界条件进行离散,编制了能进行气固两相流的计算程序。
Based on the general harmonic mean difference scheme, a program is coded for the flow and heat transfer in a porous media with three phases and two components. The developments of the temperature, pressure and the fluid saturation are computed.
利用文中提出的广义调和平均差分格式,建立了孔隙介质中三相两组分数值模拟程序,模拟计算了温度场、压力场和流体饱和度场的发展。
First, plenty of X-ray spectrum measurement documents and materials were analyzed and compared in order to prove our scheme theoretically; Second, the CMOS devices were the key parts for filtering, amplifying and Max Amplitude Detecting of the detecters`analog outputs; Third, the low power assumption and fast A/D devices were chosed to implement the 4096 channels detecting; Fourth we not only designed the timing control of sytem circuit, but also completed the control of the Max Amplitude Circuit based on the CPLD; Fifth, in order to complete high-speed data transfer between the PCI local bus and Double Ram, the PCI bus with PCI 9030 chip was our first choice.
首先,论文对X光探测及其测量系统作了大量的文献调研,在理论上保证了整个方案的可行性;其次,采用CMOS器件对探测器输出的模拟信号进行滤波、放大、峰值甄别处理;第三,根据脉冲信号的幅频特性,选择低功耗高速的A/D器件,实现X光谱的4096道测量;第四,利用CPLD芯片和Quartus II 软件,设计并实现了整个硬件电路的时序控制,并且实现对幅值电路的控制;第五,利用PCI9030的特性,设计了PCI总线,实现PCI局部总线与双口RAM之间数据的高速传输。
Therefore, it is feasible to scheme of embryo transfer which superovulation was conducted in Taihang goats and synchronized estrus was induced in Boer goats and Tangshan milk goats at non-breeding season.
因此,在非繁殖季节对太行山羊采用CIDR+FSH+LH法超数排卵和以布尔山羊及唐山奶山羊为受体分别用CIDR+PMSG和CIDR+FSH同步发情来进行胚胎移植的技术方案是可行的。
Based on the cooling scheme of ventilating duct, the models of the thermal radiation and conduction are set up respectively, and the heat-transfer structure on the walls in the dome is described with them.
在通风管道冷却方案的基础上,分别建立了壁面辐射和传导的热模型,描述了壁面的传热结构。
My employer may from time to time agree with me in respect of any changes and your Company is hereby authorized to accept any instruction given by my employer to update/amend the governing rules (including but not limited to any change in vesting scale) and/or to terminate the participation in the scheme and/or to transfer any accrued benefit to another provident fund scheme provider.
本人与雇主可以不时同意作出任何更改,及贵公司已获授权接受本人之雇主所给予的任何指示以更新/修正管限规则(包括但不限於归属比例的变更)及/或终止参与计划及/或转移累算权益至另一公积金计划提供机构。
After an analysis of the influence of blast furnace gas firing on the boiler's thermodynamic parameters, heat transfer characteristics and heating surface layout the authors have proposed a layout scheme suitable for a blast furnace gas fired bo...
根据研究结果制造的我国首台 5 0MW高炉煤气高压锅炉成功运行的实践证明,该锅炉可以有效解决高炉煤气放散污染问题,在冶金工业中有着广阔的应用前景
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如欲由其他计划转移强积金累算权益至宏利,请确保已「」以下的方格
Numerical solution of heat transfer model was researched by adopting alternation direction explicit scheme.
采用交替方向显格式研究了传热模型的数值解法。
Focused on the PCI interface chip PCI 9054, the dissertation discusses the work mode of local bus and the simulation of the CPU design with CPLD on the local bus side. Based on these discussions, system design scheme, circuit design essentials, configuration of EEPROM and the dual DMA transfer method are given.
本文围绕PCI接口芯片PCI9054,讨论了Local总线侧的工作模式和用可编程逻辑器件CPLD来模拟Local侧CPU的设计,然后在此基础上给出系统设计方案,以及电路设计的要点、EEPROM的配置和双DMA传输的思路。
Through the study on the character of hydrokinetics and heat transfer and combustion and dynamic of CFBB, three kind of single fuzzy controllers and a kind of synthetically fuzzy controller are designed, and control system is analyzed in some one power plant, and the three kind of control scheme are simulated on deferent objec...
本文通过对循环流化床的流体动力学特性、传热学特性、燃烧特性和动态特性等的研究,设计了三种单模糊控制器和一种综合模糊控制器,分析了某一电厂实际控制系统,并对这三种控制方案进行了变对象的仿真。
This scheme can also be extended to transfer entangled state of N-atom.
这个方案也可以推广到传送N个原子的纠缠态。
In calculation, it was assumed that nozzle flow was frozen, and convective and radiative heat transfer from gas to nozzle wall was considered. Governing equations were discretized with second order upstream scheme and radiative heat transfer equation was solved with Discrete Ordinates method.
在计算中,假定喷管流动为冻结流动,考虑燃气向壁面的对流换热和辐射换热;采用二阶迎风格式离散控制方程,采用DO模型离散求解辐射换热方程,水蒸气的吸收系数根据Leckner公式计算。
Nozzle flow was assumed to be frozen, and convective and radiative heat transfer from gas to solid wall was considered. Discretization of the governing equations was performed with two order upstream scheme, and radiative heat transfer equation was solved with Discrete Ordinates method. Absorption coefficient of water vapor was calculated by Leckner formula.
计算中,假定塞式喷管中的流动为冻结流动,考虑燃气向壁面的对流换热和辐射换热;采用二阶迎风格式离散控制方程,及DO模型离散求解辐射换热方程,水蒸气的吸收系数根据Leckner公式计算。
It is a systems engineering that needs advanced technology and long time for the embryo transfer in sheep, we must work out strict scheme, organize carefully, grasp the key link, only in this way, we can obtain the expected effects.
羊的胚胎移植工作是一项技术性和时间性较强的系统工程,必须严格制定方案,周密组织,严把关键环节,才能取得预期的效果。
Non-intrusive soot volume fraction and temperature distribution reconstruction scheme was proposed based on the approximations of flame emission transfer model according to tomographic principle.
基于烟黑热辐射传递过程,提出了非对称碳氢扩散火焰断面内烟黑浓度和温度分布的联合层析重建模型。