非隨機子集 的英文怎麼說

中文拼音 [fēisuíjīzijí]
非隨機子集 英文
nonrandom subset
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 隨 : Ⅰ動詞1 （跟; 跟隨） follow 2 （順從） comply with; adapt to 3 （任憑; 由著） let （sb do as he li...
  • 機 : machineengine
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 集 : gatherassemblecollect
  • 隨機 : random stochasticrandom
  1. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  2. As a result of the heightening of mechanical operation speed and the application of new materials and new structures, the nonlinear dynamic behavior in rotating machines is becoming increasingly outstanding and important. nonlinear dynamic phenomena in rotating machines cant be described, explained and predicted by rotordynamics based on linear system theory. along with the deepening and permeating of nonlinear scientific research, the nonlinear vibration of rotor systems has become an attractive field in recent years. from a point of view to set up the distinct corresponding relations between vibration states and failures of rotating machines, main advances in the research of rotor nonlinear vibration are summarized, and typical nonlinear dynamic phenomena and their forming mechanism are also summed up in the paper. the aim of the paper is to enrich the diagnostic knowledge base of rotating machines. 55refs

    由於機械運轉速度的不斷提高和新型材料、新型結構的推廣應用，旋轉機械的非線性動力學行為日顯突出和重要.基於線性系統原理的轉子動力學理論與方法難以對實踐中出現的豐富的非線性動力學現象作出準確的描述、闡釋和預測.近年來，隨著非線性科學研究的深入和滲透，轉子系統非線性振動已成為應用力學和機械工程領域的研究熱點之一.從有利於建立旋轉機械振動狀態集與故障集之間的映射關系出發，綜述了近年來轉子系統非線性振動研究的主要進展，總結了轉子系統中出現的典型非線性動力現象及其產生機理，目的在於豐富旋轉機械故障診斷知識庫.參55
  3. Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly

    但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。
  4. Farmers cannot get the good seed which has high yield, high quality, high resistance. as socialist market economy is tending toward perfection, especially 《 plant new variety protection 》, 《 seed law 》 those polities are coming on, and foreign large seed companies are joining in after china enter wto in fear of the coming of our country ’ s agriculture protection period. therefore, the general adoption of the market principle of china ’ s seed industry speed up, and the challenge between seed companies become hot

    傳統種子業是由自給自足的非商品化產業過渡到計劃經濟體制下政府壟斷性的行業，此時期，新品種及配套的新技術得不到很好的應用，行業市場集中程度很低，農民（用戶）很大程度上得不到高產、優質、高抗的良種，隨著社會主義市場經濟的不斷完善成熟，特別是《植物新品種保護條例》 、 《種子法》等政策、法規的相繼出臺實施，更為重要的是中國加入wto后對我國農業保護期限的即將到來，國外種業巨頭伺機紛紛進入，加速了中國種子產業的市場化進程，種業企業的競爭日益加劇，同時為中國種子產業的規模化、產業化經營帶來了更多的機遇。
  5. The pullulation of floes is a random process and it has nonlinear character. if the fragmentation of floes is not considered, the routine flocculation process is to form the small group from initial particle and the big group from small groups. finally the biggest group is formed from those big groups

    由於絮凝體的成長是一個隨機過程，具有非線性的特徵，如果不考慮絮凝體破碎的話，常規的絮凝過程是由初始粒子結成小的集團，小的集團又結成大的集團，然後結成更大的集團，這樣一步一步成長為粗大絮凝體。
  6. In this paper, the notion of likelihood ratio, as a measure of deviation between a sequence of the arbitrary random variables and a sequence of independent random variables with different distributions, is introduced. a class of strong deviation theorems represented by inequalities are given on a subset of the sample space by constructing a negative supermartingale and using martingale convergence theorem

    本文通過引進似然比作為相依隨機變量序列相對于服從不同分佈的獨立隨機變量序列的偏差的一種度量，並通過構造一個非負上鞅，利用鞅收斂定理給出了樣本空間的一個子集上的一類用不等式表示的強偏差定理。
  7. Through literature review and case studies of six firms headquartered in taiwan, the study has the following findings : ( 1 ) a parent firm tends to adopt more formal control mechanisms when its levels of internationalization are low and when a subsidiary serves the role as a production site ; ( 2 ) a parent firm tends to lower the adoption of formal control mechanisms, when its levels of internationalization are low and when a subsidiary serves the role as a selling unit ; ( 3 ) increasing levels of internationalization leads to the adoption of more informal control mechanisms by a parent firm, in addition to the intensive usage of formal control mechanisms ; ( 4 ) when a subsidiary relies more on the headquarters for resources, a parent firm tends to adopt more formal control mechanisms ; ( 5 ) when a subsidiary relies less on the headquarters for resources, a parent firm tends to increase the usage of informal control mechanisms ; ( 6 ) when the organizational culture encourages innovation and communications, a parent firm tends to adopt more informal control mechanisms ; ( 7 ) when the culture of a host country is characterized by collectivism, a parent firm tends to adopt more formal control mechanisms ; and ( 8 ) unstable local industrial environment leads to more usage of informal control mechanisms by a parent firm

    本研究以個案研究法，經分析六家廠商，對于母公司採用的控制機制有下述結論： （ 1 ）當母公司國際化程度較低，且海外子公司以生產為主要活動時，母公司傾向高度使用正式化控制機制； （ 2 ）當母公司國際化程度較低，且海外子公司以銷售為主要活動時，母公司傾向降低使用正式化控制機制； （ 3 ）隨母公司國際化程度的提高，母公司除了高度使用正式化控制機制外，亦傾向增加使用非正式化控制機制； （ 4 ）當子公司對母公司的資源依賴程度愈高時，母公司傾向高度使用正式化控制機制； （ 5 ）當子公司對母公司的資源依賴程度愈低時，母公司傾向增加使用非正式化控制機制； （ 6 ）當母公司文化鼓勵創新與溝通時，母公司傾向高度使用非正式化控制機制； （ 7 ）當地主國文化呈現集體主義時，多國公司傾向高度使用正式化控制機制； （ 8 ）當地主國產業競爭環境不穩定時，多國公司傾向高度使用非正式化控制機制。
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