逆反效應 的英文怎麼說
中文拼音 [nìfǎnxiàoyīng]
逆反效應
英文
snob effect- 逆 : Ⅰ形容詞1 (方向相反) contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 (抵觸; 不順從) go aga...
- 反 : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
- 效 : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 效應 : [物理學] effect; action; influence
-
Flux position & error in flux magnitude and error in torque are used as fuzzy state variables. fuzzy logic is used for choosing the switching state. a fuzzy logic controller can choose the switching states according to a set of fuzzy rules based on both specialists " experience and knowledge, which improves the response performance of the system effectively during start - up and change in load
作為本文的一個創新點,針對普通的直接轉矩控制在給定轉矩躍變時反應較慢的缺點,提出了一種模糊控制器,把磁鏈位置、磁鏈誤差和轉矩誤差作為模糊輸入變量,應用模糊邏輯來確定逆變器的開關狀態,該模糊控制器根據一套基於專家經驗和知識的模糊規則來選擇開關狀態,從而有效地提高了系統在啟動和負載突變時的響應速度。Some stiffness matrices of special elements such as rubber bearings and components with field are derived from primary - secondary and inverse transform in structural matrix analysis. then, seismic response analytical models and non - isolated continuous rigid frame bridges are set up, while considering the interaction of soil - pile - structure and traveling wave effect simultaneously. finally, the seismic time history response of the two models is calculated by means of the finite element method, and the results show that the isolated bridge posses powerful earthquake resistance
首先論述了公路大跨徑橋梁的地震反應分析方法,其中包括樁-土-結構相互作用、行波效應等因素對結構物的影響;其次,利用結構矩陣分析中的主從變換和逆步變換,推演了幾個特殊單元的剛度矩陣,包括橡膠隔震層單元和帶剛域構件單元;最後,考慮樁-土-結構相互作用和行波效應的結合,分別建立隔震與非隔震連續剛構橋地震反應分析模型,通過有限元法對兩種結構進行時程分析,結果表明:隔震層上部結構的地震加速度反應、位移反應均明顯減小,這說明隔震的連續剛構橋具有很好的抗震能力。Jianpi jiangni xiaopi tang for toxic and side effects of digestive tract after chemotherapy by hepatic artery embolism : a clinical observation of 32 cases
健脾降逆消痞方治療肝動脈栓塞化療術后消化道毒副反應32例療效觀察An improved ar model is studied, which established by the combination normal order time serial and contrary order data in case the observations are less, and then, the combination model with improved grey and time serial is introduced. it can reflect not only the deformation tendency, but also the stochastic characters. it is very suitable to be applied to deformation analysis and prediction
為了充分利用有限的地表變形數據所蘊涵的內在規律性,提出了利用變形數據的正逆時間序列建立ar模型的方法,並與時變灰色模型組合,不但可反應出變形數據序列的趨勢性,同時還可表現出其隨機性,從而可進一步提高預測的精度和效果。Abscisic acid ( aba ) can regulate a variety of physiological and molecular responses for plant against stresses, including drought, chilling, salinity, and so forth
脫落酸( aba )可以調節植物抗逆(包括乾旱、冷害、鹽害等)的多種生理反應和分子生物學效應。A new robust adaptive scheme which are used for tracking of this robot with parametric and bounded external uncertainties is proposed in this thesis. the controller is consist of a controller which is proposed by slotine1 ' 1 and nonlinear continued feedback compensation part. by estimating the unknown physical parameters of robot on - line, it can eliminate the effects result by parameters and external disturbances and guarantee gas and uniform boundedness of parametric estimation. the only information required in setting up the strategy is the output states of jionts, while the inversion of the inertia matrix or estimation the bound of the inertia matrix and measure the jionts accelerations are not needed. it is shown by simulations that the proposed control scheme has quicker convergence velocity and better control precision than paper [ 1 ] and control schemes at present
針對該模型具有參數及有界外部擾動不確定性時提出了一種新的魯棒自適應控制策略,控制器由基於slotine的控制器和非線性連續反饋補償控制器構成。通過在線估計機器人的未知物理參數,有效的消除了由參數及外部擾動所引起的不確定性影響,保證系統達到漸近穩定和參數估計一致有界。與現存的許多控制方法相比,該控制策略不需求解慣性矩陣的逆或估計慣性矩陣的界,不需測量關節加速度,而唯一需要了解的只是系統輸出的位置及速度狀態。Picture that put forward in the article graph and data structure reciprocal mapping support not merely to map graph from data structure efficiently, besides, regard graphics element as a unit, analyze and discern to user ' s modified graph, produce the corresponding data structure automatically, maintain consistency of graph and data structure efficiently on the foundation of expanding case graphic tools effectively, we direct against the intrinsic characteristic of traditional waterfall model, proposesmall loop model to software analysis based on graph and data structure reciprocal mapping solve problems of slow information feedbackand high track back cost efficiently
文中提出的圖數互逆映射的思想,不僅對數據結構到圖形映射進行高效率地支持,同時,以圖形元素為單位,對用戶修改後的圖形進行分析和識別,自動生成相應的數據結構,有效地維護了圖數一致性。在對case圖形化工具進行有效擴展的基礎上,我們針對傳統瀑布開發模型的固有特點,提出了基於圖數互逆映射的軟體分析小循環模型,有效解決了傳統軟體分析設計階段信息反饋慢、回溯代價高等問題。The dependence of cw df / hf cl performance on the flow - field parameters in f & d2 / h2 reacting zone, which act as criterion to nozzles design, has been inversely educed on the light of original formula of gain coefficient, output power and laser efficiency
從增益系數、輸出功率和激光效率的基本模型公式出發,逆推得到了df hf化學激光器性能對光腔中f和d 。川。反應區流場參數的依賴關系。Compared with tranditional materials, electromagnetic waves transmitted in such material will behave some fantastic phenomena, such as negative snell refraction, reversed dollper effect, reversed cerenkov radition, and so on
電磁波在這種介質中傳播時將顯現與通常介質不同的各種逆向或反向效應,如負折射效應、逆多普勒效應、逆切侖科夫輻射等等。To build up local database of correlation between genotype and clinical response to highly active antiretroviral therapies haart for hiv subtypes prevalence in hong kong ; and
就本港流行的亞型愛滋病病毒對高療效抗逆轉病毒療法的基因型與臨反應的相互關系,建立本地的資料庫以及Using the basic principle of the network economy, the second part emphatically makes analysis of the controversial focus of the case from the perspectives of critical mass, positive feedback effects, consumer expectation, locking - in & irreversibiry and compatibility & industrial standard. the third part analyzes the other problems of the case, such as the pricing of the windows, bundling sale, etc. the last part concludes the above analysis and puts forward some positive suggestions
本文利用網路經濟學的基本原理,著重從臨界規模、正反饋效應、網路效應、消費者預期、鎖定和不可逆性、兼容性及產業標準六個方面對微軟壟斷案的爭論焦點進行分析,同時也對該案的其他問題如windows定價、捆綁銷售等進行了分析,得出了與傳統經濟理論不一致的結論,並提出了幾個富有建設性的反思。Currently, there is no reliable way to predict which transplants will fail, and when signs of chronic rejection appear, it is usually too late to reverse it, she said
目前尚無有效方法預測移植手術成敗及慢性排斥反應預警信號,最後導致為時已晚,無法逆轉,她說。The problem that we know the rotational degree of every joint and we need resolve the position of a joint or the end effector belongs to direct kinametics problem. but the problem if we know the position of the end effector, we need resolve the rotational degree of every joint belongs to inverse kinametics problem
已知鏈上各個關節旋轉角,求各關節的位置信息和末端效應器( endeffector )的位置信息,這是正向運動學的問題;若已知末端效應器的位置信息,反求其祖先關節的旋轉角和位置,這是逆運動學的問題。This method can guarantee the solution matrix of sylvester equation to be inverse and the sum of the input gain norm and the observer gain norm is the minimum. for the linear systems with unknown parameters, we identify the parameters using hopfield network, then design the observers using the identified parameters, the exponential convergence of adaptive observer is also proved. for the linear time - varying systems, a new network to solve the time - varying sylvester equation is proposed, we analysis it ' s convergence and robustness, then, deign the linear time - varying observer using this network model, and we discuss the convergence of the observer and ruboustness to unknown match parameters
同時保證了sylvester方程的解矩陣的可逆性和觀測器的增益矩陣與輸入矩陣范數的和最小;在設計線性時不變自適應觀測器時,首先利用系統的輸入、輸出數據設計一個hopfield網路參數估計器,進一步設計狀態觀測器,證明了參數估計器和狀態觀測器的指數收斂性;為了仍然從神經優化計算的角度設計線性時變系統的狀態觀測器,最後介紹了一種求解時變sylvester矩陣方程的神經網路模型,分析了它的收斂性和魯棒性,然後利用該網路設計時變狀態觀測器,進一步討論該觀測器的在系統存在未建模不確定和外部噪聲時的魯棒性;最後給出了一種基於分離性原理和hopfield網路觀測器的狀態反饋閉環系統的結構,分析了該閉環系統的特點;對于每一種設計方法都給出了相應的數值模擬例子來進一步表明所提方法的可行性和有效性。When a temperature inversion is formed in the pearl river delta ( prd ) region, or when a weak northerly or northwesterly wind prevails, ambient air pollutants ( including nitrogen oxides ( nox ) and volatile organic compounds ( voc ) ) in the region will be trapped easily in the lower atmosphere and cannot be dispersed effectively. the above factors, if coupled with strong sunlight, will generate ozone under photochemical reaction between nox and voc and lead to the phenomenon of photochemical smog
當珠江三角洲區域一帶出現逆溫層,或者吹微弱北或西北風時,區域內空氣中的污染物(包括氮氧化物及揮發性有機化合物)很容易會被困在大氣的低層,不能有效消散;如再加上強烈的陽光,氮氧化物與揮發性有機化合物便會產生光合化學反應,形成臭氧及引致光合化學煙霧現象。分享友人