查询词典 explicit difference scheme

The scheme takes the difference between USA grid and PRC grid into account, and can run above the rating parameter, and it would benefits for the J-TEXT operation on the rating parameters. The stator magnetic flux linkage vector oriented control method is defined for motor double-feed varying speed system, thereafter the ac converter scheme of 100MW motor-generator double-fed varying speed system is proposed.

针对中美电网之间的差异所导致的机组转速下降和储能不足等问题，设计了100MW脉冲发电机组的双馈调速系统初步方案，方案利用机组电动机转子为绕线式转子的特点，采用双馈调速的方法将机组转速提升至750rpm，以解决机组储能不足的问题。

Based on this, a new WENO difference scheme which based on Dispersion-Relation-Preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics problems has been implemented and compared in order to test capability of wave capturing; In addition, WENO schemes generally do not converge at high order in the presence of contact discontinuity of Euler equations, so a conservative front tracking technique coupling WENO schemes and Level Set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy.

本文研究了高阶精度加权基本无振荡格式及其在双曲守恒律方程中的应用，在此基础上作了两个方面的工作：一是针对高频声波问题构造出一种基于保色散关系的WENO有限差分格式，并对计算气动声学问题的代表性算例进行了大量数值实验，比较了该格式捕捉波数的能力；另外，针对高阶WENO格式在处理Euler方程的接触间断时精度有所降低的问题，研究了利用界面追踪技术Level Set方法和高阶激波捕捉WENO格式相结合的一种守恒追踪方法，并且给出有代表性的密度滑移面问题的算例，得到一致高阶精度的数值模拟结果。

In order to enhance reliability, this paper presents a new realization scheme. The scheme using current instantaneous value to detect the branch circuit which is serving, and the branch circuit permuted and combinated with recursion algorithm till the difference of each busbar balances.

针对这一问题，本文提出了一种新的自适应运行方案，使用电流瞬时值来检出有流支路，再利用递归算法算出两段平衡的小差，然后对两段小差不断进行平衡校验。

In this paper, based on the demand of enterprise, the design theory and method for blocking scheme of clamping fixture are further studied; the difference and similarity of under frame of railway freight wagon on structure and size are analyzed; the design system frame of blocking scheme for freight wagon under frame is constructed; the blocking design method for under frame assembly is generalized.

本文在企业需求的基础上，对夹具模块化方案设计理论和方法进行了深入的研究，大量分析了铁路货车底架组成在结构、尺寸上的差异及相似点，并对与之相对应的组对夹具进行了细致的研讨，构建了货车底架组对夹具模块化方案设计系统框架，总结出底架组对夹具的模块化设计方法。

They examined the Detroit " hotel broker priority " Work for the Dole scheme (through an employment agency for low-skilled unemployed to find the hotel brokers ), and then more job seekers joining the scheme, before and after accession, in income, hotel brokers during what difference there.

他们检视了底特律的「酒店经纪优先」以工代赈计划（透过职业介绍所，为低技能的失业者找酒店经纪），再比较参加计划的谋职者，加入之前与之后，在所得、酒店经纪期间上有什麼差异。

The difference between this scheme and others proxy multi-signatures was that no all original signers authorized the proxy signer who could sign a message on behalf of original signers.Only a part of original signers delegated their signing power to the proxy signer,and others signed by themselves.This scheme satisficed the need when part of original signers couldn't sign by themselves.

与一般的代理多重签名不同的是，一组原始签名人不是都将签名权授予指定的代理签名人，仅有一部分原始签名人授权，其余的是自己行使签名权，即实现了一组原始签名人只有部分成员不能行使签名权的要求。

The author systematically studies the construction principle of high order accuracy difference scheme and uses third-order accuracy Godunov scheme with TVD property to solve three-dimensional viscous flow field in cascade.

为了减少网格畸变对数值解的影响，发展了一种微分方程法与代数法相结合的网格生成方法。

In this paper,a systematic direct perturbation method of dark solitons is found.Having analyzed the mistakes in earlier works on perturbation method for dark solitonsand essence of the direct perturbation method for bright solitons,we notice that to in-troduce the adjoint solutions of the squared Jost solutions and to prove the completenessare crucial to the problem.Giving up the unnecessary scheme of introducing the adjointoperator in the bright soliton case,we directly find the adjoint solutions by meetingthe demand for the orthogonality that inner product of the squared Jost solutions andits adjoint should be proportional to a δ function in the case of continuous spectra.The corresponding adjoint operator is thus found.Taking into account the reductiontransformation,we find a correct description for the completeness of the squared Jostsolutions and directly verify its validity with explicit expressions of the squared Jostsolutions.

本论文建立了系统的暗孤子直接微扰方法，在对前人关于暗孤子微扰方法的错误以及亮孤子直接微扰方法的本质作了充分的分析后，认识到引入平方Jost解的伴随解和证明完备性是问题的关键，撇开过去亮孤子情况首先引入伴随算子的非必要作法，直接从平方Jost解与其伴随解的内积在连续谱时正比于δ函数这一正交性要求出发，找出了伴随解，同时得出了应有的伴随算子，在考虑到约化变换性后，得到了暗孤子情况的平方Jost解的完备性的正确表述，并在单个暗孤子的情况利用平方Jost解的显式直接验证了它的正确性。

In wireless net,Cumulative Explicit Transport Error Notification Scheme is used to improve the TCP performance.

针对CETEN需要路由器支持这一缺点进行了改进，在接收方估计丢包率。

In wireless net, Cumulative Explicit Transport Error Notification Scheme is used to improve the TCP performance.

无线网中，可以采用累积方式的显示传输错误通告（Cumulative Explicit Transport Error Notification）机制来提高TCP的性能。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。