Global asymptotic stability of a class of nonlinear rational difference equations was studied by means of setting up an auxiliary equation, so that a sufficient condition was obtained. 运用建立辅助方程的方法研究一类非线性有理差分方程正平衡点的全局渐近稳定性,得到一个充分条件。
, we can immediate define point A on the auxiliary circle for the fixed hinge center, and we can get the define condition mechanism; 直接确定辅助圆上固定铰链中心A点,以得到满足给定条件的机构;
Therefore, proper program design of sequence and cycle control should notice as follows: make I/ O point 、 coil of relay of auxiliary point and act principle and act condition of TIM definite; 因此,正确设计基本的时间顺序循环控制程序应注意I/O点、辅助点继电器线圈及TIM动作原理和动作条件;
Conclusions As the high frequency ultrasound can provide distinct image of tendon in various conditions, it can be used as an auxiliary examination in diagnose of tendon injury and following its healing condition. 结论高频超声能够提供有关肌腱情况的图像资料,可以做为临床了解肌腱损伤和愈合情况的辅助检查手段。
The whole system made mine auxiliary fan work in the safety and economy condition by monitoring gas consistency. 整个变频调速系统通过瓦斯浓度监测和局部通风机的变频调速,使矿井局部通风机始终保持安全经济运行。
This paper deals with the existence of two positive solutions for critical elliptic equations with a changed sign perturbation and with an auxiliary condition. 讨论了带变号扰动并且具有一定附加条件的临界椭圆方程的两个正解存在性。
In this paper, we research the PPS cluster sampling with auxiliary target, construct the PPS ratio estimators of population mean and population total, prove that the PPS ratio estimators are feasible and give the condition that the PPS ratio estimator is superior to PPS estimator. 本文研究有辅助指标的PPS整群抽样,构造了总体均值和总值的PPS比估计量,证明PPS比估计量是可用的,给出PPS比估计量优于PPS估计量的条件并讨论其优良性。
There are a variety of auxiliary substances, controlling the pollution condition of gemma of a fungus of auxiliary substances, which will be of great importance to the importance of the quality of the products. 肉制品生产中所用辅料种类较多,控制辅料中芽孢菌污染情况,对提高产品质量有重要意义。
The management method about auxiliary system in different condition is explained in detail. The two deformed matrix thermal balance equations are proved in this essay. 详细地说明了在不同情况下辅助系统的处理方法,通过矩阵运算推导了矩阵热平衡方程的两种变形形式。
The inverter features single phase commutation, main switch IGBT working under zero voltage condition and auxiliary switch working under zero current condition. 该逆变器具有单相换相、逆变器主开关管工作在ZVS零电压开关以及辅开关管工作在ZCS零电流开关环境下的特点。
Auxiliary variable algorithm is a main method in parameter estimation. Consistency without deviation when using auxiliary variable algorithm to estimate is verified through the analysis under system noise interference condition. 辅助变量算法是参数估计中的重要算法,通过分析验证了辅助变量法在有系统噪声干扰情况下进行估计的无偏一致性。
The stability of the laser output and the selection of auxiliary spark excitation condition in experimental process were discussed. 讨论了实验过程中激光输出的稳定性和辅助火花激发条件的优化问题。
The Improving Design of Roundabout Intersection of Crossing Roads with Auxiliary Road under the Condition of Mixed Traffic 混合交通条件下相交道路带有辅道的环形交叉口改善设计研究
The essay has a detailed classification on the ten forms of structure of this kind of sentence structure and a analysis each practice in numeral phrase plus structure auxiliary and the condition of its appearance. The main types of sentence structure has also been discussed. 本文对这种句式的10种结构形式进行了细致的描写,剖析了数量短语加结构助词的修饰名词的各种情况及出现条件,讨论了这种句式的主要句法类型。
This paper introduces An Auxiliary System of Software Test for the process control ( AASST) to emulate the site running condition, produce test data and results automatically, and to found data files. 本文介绍一个系统测试级的软件测试辅助系统AASST(AnAuxiliarySystemofSoftwareTest),用来仿真现场条件的运行环境,产生测试数据,建立数据文件,自动产生测试结果。
The influence of dyes selection, auxiliary dosage and process condition to dyeing process are experimented and analyzed. 从染料的选择、助剂的用量及工艺条件对染色工艺的影响等方面进行试验和分析。
A method is proposed to satisfy the free boundary equilibrium for non-symmetrical current, by using linear equation array with the current of poloidal field coils as the main confined condition and expected configuration as the auxiliary confined condition. 提出极向场线圈电流作为线性方程组主约束条件,期望位形作为从约束条件,求解非对称电流条件下自由边界平衡问题的方法。
Simultaneously, this topology makes both the secondary side diodes and auxiliary diodes operate on the soft switching state too, which reduces more switching losses and provides requirement for the system to run stably under the condition of self-cooled. 同时,该拓扑也使副边二极管和辅助二极管都工作于软开关状态,进一步降低了开关损耗,为系统能够在自冷的条件下稳定运行创造了条件。
Perhaps, it's very difficult to guarantee both main and auxiliary navigable openings of the Shashi Bridge to be navigable at the present river condition. 目前的河型条件下要保证主、副通航孔都能通航可能是比较困难的;
The Situation and Prospect of Underground Auxiliary Trackless Transport Current Condition and Development of Underground Trackless Mining Equipments 煤矿井下无轨辅助运输的现状与展望井下无轨采掘设备的现状和发展
The proposed auxiliary commutation circuit consists of one resonant inductor and two bidirectional switch, which provides the ZVS condition to the main switch without increasing voltage or current stresses. 提出的辅助变换电路由一个谐振电感和两个双向开关组成,此电路没有增加主开关的电压和电流应力,却给主开关提供了ZVS的条件。
This article describes the advantages of various kinds of auxiliary conveying equipment, introduced and developed in our country at present, and expounds in detail the operation condition of overhead trolley, trackless rubber tyred wheel vehicle, rail-trapped car, rubber-tyred locomotive and rack locomotive. 叙述了目前我国引进和开发的各类辅助运输设备的优点,详细论述了单轨吊车,无轨胶轮车、卡轨车、胶套轮机车、齿轨机车的使用条件。
The U-tube vertical pipe loop was inserted into the two 120m deep boreholes, and other four 100m deep drilled wells are auxiliary well for temperature testing. The cooling capacity of R22 scroll compressor is 21.8 kW at the ARI standard rating condition. 建起了具有两眼120m深埋管井和四眼100m测温辅井的垂直U型埋管土壤源热泵实验系统,热泵机组采用R22全封闭涡旋压缩机,ARI标定工况制冷量为21.8KW。
The centrifugal pump is one of main auxiliary machineries in marine engine room. Its running condition directly concerns to the safe navigation of vessels and the livelihood security of crews. 离心泵是船舶机舱的主要辅助机械,其运行状态的好坏直接关系到船舶能否持续正常航行和船员生活能否得到保障等问题。
According to the results, matching with the actual situation of the road section, taking mainly the GPS data and other detector data for auxiliary, we can obtain real-time traffic condition of any road in the network of Beijing roads accurately and easily. 根据匹配的结果,结合路段的实际情况,以GPS数据为主,其他检测器数据为辅助,可以方便准确地获取到北京市路网任何一条路段上的交通状态。
In addition, the method of auxiliary drying was enlarged to be suitable for closed structures. Auxiliary structure was also optimized. Deformation of closed structures is calculated under the condition of using auxiliary drying by finite element method. 3. 此外,还对该方法进行了拓展,分析了封闭结构的变形,优化了辅助干燥方法的辅助结构,并利用有限元法计算了使用辅助干燥方法情况下封闭结构的变形量。
The hardware in the loop ( HIL) test of electric traction system and auxiliary supply system can provide a relative real external environment, especially in fault condition which may not realized in Laboratory. 摘要:硬件在回路仿真可以在电力牵引以及辅助变流器驱动控制器开发过程中,为实际系统中关键软硬件提供一个接近真实的控制环境,特别是极限,故障条件下的测试。
Two typical multistage iterative reduced-rank ( MIRR) methods, multistage nested wiener filtering ( MWF) algorithm and auxiliary vector filtering ( AVF) algorithm were deeply analyzed and unified to the same reduced-rank frame on a certain enhanced condition. 本文深入研究了多级维纳滤波(MWF)和辅助向量滤波(AVF)两种典型多步迭代降维方法,在一定加强条件下将这两种方法统一到同一降维框架内。
The auxiliary switch operates at zero-current-switching turn-on and turn-off condition. 辅助开关在零电流状态下开通和关断。
Additionally, HTGS is a close-coupling, complex, and large system consisted of hydraulic, mechanical, electrical, control and auxiliary equipment, whose health condition can be affected by any one part. 加之,水电机组是一个由水力、机械、电气、控制和辅助设备构成的强耦合复杂大系统,往往牵一发而动全身。