隨機索得率 的英文怎麼說
中文拼音 [suíjīsuǒdelǜ]
隨機索得率
英文
browsability-
A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied
本論文在激光光束波前畸變檢測和控制上進行了新的探索，主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究，其研究的內容和取得的成果如下：一、根據標量衍射理論，結合低頻波前畸變的高斯隨機位相分佈模型，研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響，並採用描述中頻段波前畸變的功率譜密度概念，模擬計算了它對激光焦斑旁瓣的貢獻。Because ga possesses the traits of can global random search, the robustness is strong, been use briefly and broadly, it didn ’ t use path search, and use probability search, didn ’ t care inherence rule of problem itself, can search the global optimum points effectively and rapidly in great vector space of complicated, many peak values, cannot differentiable. so it can offset the shortages of nn study algorithm, can reduce the possibility that the minimum value get into local greatly, the speed of convergence can improve, interpolation time shorten greatly, the quantity of training reduce
因為遺傳演算法具有全局隨機搜索能力，魯棒性強、使用簡單和廣泛的特點，它不採用路徑搜索，而採用概率搜索，不用關心問題本身的內在規律，能夠在復雜的、多峰值的、不可微的大矢量空間中迅速有效地尋找到全局最優解，所以可以彌補神經網路學習演算法的不足，使陷入局部最小值的可能性大大減少，使得收斂速度提高，訓練量減小。In this paper, we first analyze the input and output as well as cost - benefit rate of chinese livestock industry by the example of hog, beef, mutton and dairy cow. then, we choose the samples from different regions in different time, use the stochastic production frontier suggested by battese and coelli ( 1992 ), which is aimed at the panel data ( balanced or unbalanced ), and make the econometric analysis for the growth of hog, beef, mutton, and dairy cow. different from the former research for livestock industry, the efficiency measurement theory is introdiced into the growth model and the tfp is dissolved into technical advancement, technological efficiency and residual, the translog production function is used to make the estimation more precised
本文首先以生豬，肉牛、肉羊和奶牛為例對近年來我國畜牧業的投入產出和成本收益狀況進行了分析，然後採用battese和coelli在1992年提出的針對混合數據（ paneldata ）的隨機邊界生產函數形式，在不同地區選取一定的樣本，利用樣本省的時間序列與截面混合數據，對生豬，肉牛，肉羊和奶牛的增長因素進行了分析，與以往對于畜牧業增長研究不同的是，將效率測算理論引入生產增長模型，把全要素生產率分解為技術進步、技術效率和殘差項，並採取了更加符合實際的超越對數函數形式，使傳統上使用的索洛余值法得到改進，更深層次的剖析了我國畜牧業目前的增長方式。A widely used method for checking real - time systems is, according to the real - time property to be checked, to use a proper bi - simulation equivalence relation to convert the infinite - timed state space to a finite equivalence class space. the algorithm needs only to explore the finite space to get a correct answer. in most cases, exhaustive exploration is very difficult because the equivalence class space increases explosively when the scale of the system increases. in this paper, an equivalence relation is introduced to check whether a concurrent system, which is composed of a finite set of real - time automata, satisfies a linear duration property. to avoid exhaustive exploration, this paper also introduces a compatibility relation between timed states ( configurations ). based on these two relations, an algorithm is proposed to check whether a real - time automaton network satisfies a linear duration property. the cases study shows that under some conditions this algorithm has better efficiency than the tools in the literature
一個被廣泛用於驗證實時系統的方法是根據被驗證的實時性質，使用適當的雙向模擬等價關系使無限的狀態空間轉化為有限的狀態等價類空間.演算法只需要在這個有限的等價類空間里搜索就可以得到正確答案.但是，這個等價類空間的規模一般隨著系統規模的增大而產生爆炸性的增長，以至於在很多情況下，窮盡搜索這個空間是不現實的.該文引入了一個等價關系來驗證一個由多個實時自動機通過共享變量組成的並發系統是否滿足一個線性時段特性.同時，還引入了格局之間的兼容關系來避免對狀態等價類空間的窮盡搜索.基於這兩個關系，文章提出了一個演算法來驗證是否一個實時自動機網滿足一個線性時段特性.實例研究顯示，此演算法在某些情況下比其他一些工具有更好的時間和空間效率One is the " belt persistence ", which is defined as the total length of joints teace length in a 1m wide belt projected to a basic line ( eliminating the overlay section ) over the length of the basic line. another is the one called as " search persistence ", which is defined a as the total length of joints trace length on the searched potential slipe surface over the length of the slip surface. thus, the author establishes a measuring and calculation system to these definitions and finishes a great deal of field investigation aiming at the joints trace length and the " rock bridge " survey
在此基礎上，針對a區邊坡的穩定性，結合邊坡的破壞失穩模式，以邊坡節理巖體的連通特性的研究為突破點，從節理巖體的幾何參數的統計分析出發，採用monte - carlo隨機模擬原理形成節理網路模擬圖，以巖橋和節理組合破壞的內在機制為依據，以搜索節理巖橋組合的最短路徑為手段，通過帶寬投影法與路徑搜索法兩種方法的計算，獲得了sn向中緩節理的連通率分別為48 . 7和56 . 78 ，最終推薦60的連通率進行了邊坡的穩定性分析與計算，並結合工程實際，計算了邊坡的推力與錨固力，最終為邊坡的支護設計提供優化建議。Software reuse come up on this background. as an effective approach to solve software crisis, software reuse is getting more and more attention, and with perfection of component specification such as corba, opendoc, ole2 and javabeans, reuse emphases divert to how to develop reusable components, how to manage components and how to improve the component search efficiency
軟體復用在這種背景下發展起來，並且作為解決軟體危機的有效途徑，越來越得到廣泛的重視，目前隨著構件規范corba ， opendoc ， ole2 ， javabeans的日趨完善，軟體復用的重點轉移到如何開發復用的構件，如何對構件進行管理，以及如何提高構件的檢索效率。分享友人