自由基反應 的英文怎麼說
中文拼音 [zìyóujīfǎnyīng]
自由基反應
英文
free radical reaction- 自 : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
- 由 : causereason
- 反 : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
- 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...
- 自由基 : free radical
- 自由 : freedomliberty
-
Termination of free radical chains occurs by a bimolecular reaction.
自由基鏈的終止產生於雙分子反應。This reaction has been classified as a free radical chain process.
這種反應是按自由基連鎖反應的歷程進行分類的。Let us consider the most simple reaction scheme for the radical propagated polymerization of a single monomer.
讓我們考慮一種單體聚合中自由基增長的最簡單的反應圖式。During the procedure of system design and implementation, the author has made some innovative efforts such as : ( d establishing the user interest orientated model, the model receiving user interests continuously and conjecturing user interests by interaction with the user, accumulating user preferences in information demand, thereby achieving self - adaptive retrieval, ? roviding a feedback method which is based on the human - machine interaction, summarizing the user operations on the interface of result presentation, and designing an algorithm for capturing user operation behaviors, by which the changes in user interests and preferences can be learned potentially, ? ffering a method for user interest mining which can extract subjects of information confirmed by user, thereby conjecturing or predicting different kinds of expressions of the same interest or extracting the new interests or unexpressed interests, ? roposing a solution of personalized internet information retrieval based on the user interests in accordance with the above - mentioned work, the solution having very strong feasibility and practicality with taking user interest model as center, employing machine learning ( active learning and passive learning ) and data mining as tools, and being assisted with network robot,
Piirs系統分析與設計過程中所做的創新性的嘗試主要有以下幾個方面:實現了基於用戶興趣的用戶模型,該模型通過與用戶的交互(主動交互和被動交互) ,不斷地接收用戶的興趣和推測用戶的興趣,積累用戶信息需求的偏好,實現自適應的檢索;提供了一種基於人機交互的反饋方法,對用戶在結果呈現界面上的操作進行了歸納總結,設計了用戶操作捕獲演算法, 「隱性地」學習用戶興趣和偏好的變化;提供了一種用戶需求挖掘的方法,對用戶已確定的信息做進一步的主題挖掘,由此推測或預測用戶同一興趣的不同表述方式或者挖掘出用戶新的或未表達出來的興趣;在上述工作基礎上提出了一套完整的基於用戶興趣的個性化網路信息檢索的解決方案,該方案以用戶興趣模型為中心,以機器學習(主動學習和被動學習)和數據挖掘為手段,輔以網路機器人,具有很強的可行性和實用性。Using these dates, the study develops a supply - demand analysis system ( consists of cobb - douglas production function modek nerlovian supply response model and double log demand function model ) to point out all the important factors affecting the supply and demand of japonica rice in china and the extent of influence respectively, especially the paper analyzed the trade status and international competitiveness of japonica rice thoroughly under the framework of china ' s joining to the wto, and according to the analysis of development trend and natura1. economic and social factors of influencing japonica rice industry, predicts the development of japonica rice industry in 2005 and 2010, brings forward some of strategies and suggestions for the future development of japonica rice industry
以這些數據為基礎構造了我國粳稻(米)的供求分析系統(該系統由c - d生產函數模型、 nerlovian供給反應模型和雙對數需求函數模型三大模型構成) ,以此來揭示影響我國粳稻(米)供求的各種重要因素以及各因素的影響程度,特別是在wto框架下,比較全面、深入地分析我國粳米的貿易態勢和國際競爭力問題,同時根據當前我國粳稻產業的發展態勢以及對影響粳稻產業發展的自然、經濟和社會等各重要因素進行分析,據此預測我國粳稻產業在2005年和2010年的發展情況,並對我國粳稻產業的未來發展提出相應的對策和建議。With the development of educational measurement theory and computer network technology, there are some underlying changes in educational examination system in china, from traditional fixed testing based on classical test theory ( ctt ) to computerized adaptive testing ( cat ) based on item response theory ( irt )
隨著教育測量理論和計算機網路技術的發展,中國的教育考試也正在發生著悄悄的變化,由傳統的基於經典測驗理論( ctt )的固定題目、同一試卷的考試向基於項目反應理論( irt )的計算機化自適應測試( cat )的方向轉軌。In the study of the diffusion - reaction equation, the mass diffusion was believed could cause some order - behavior in the reaction, however in shs this effect was n ' t found. it was believed due to that mass could mainly diffuse in a fixed direction in shs, the combustion wave ' s direction
由於自蔓延過程中,燃燒波基本上是以單一行波的方式蔓延過樣品,因而擴散過程的方向基本是確定的單一方向,在shs過程中的作用主要是引起能量和物質的耗散,沒有導致通常擴散反應可能形成的有序性。In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.
在混凝土結構的施工及使用過程中,由於受其自身及外界各種因素的影響,常常會產生一些缺陷,對結構物的承載能力和耐久性造成嚴重影響,採用無損檢測技術進行質量檢測和健康診斷,這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作,重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍,運用動力有限元數值模擬其檢測過程,探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵,研究了不同裂縫深度下首波相位變化規律,得出了反轉臨界點與裂縫深度之間的關系,這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術,它是利用聲波穿透被檢測體獲取聲波接收時間,來進行計算機反演成像的技術。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。Many tcp - friendly congestion control mechanisms have been proposed for these applications, of which some are described in the thesis
這些應用由於自身的原因是基於對擁塞沒有反應的udp的。Abstract : in this paper a new adaptive neural network controller is presented for a class of continuous - time nonlinear time delay systems subject to modeling uncertainty. the neural network model requires a priori knowledge about plant dynamics to provide prediction models for time delay systems. an adaptive controller based on neural networks was developed to produce the desired tracking performance in uncertain conditions. stability of the closed - loop system is proved by the lyapunov method. the effectiveness of the proposed scheme was demonstrated through its application to the control of a continuous stirred tank reactor
文摘:針對模型不確定性的連續時間時滯系統,提出了一種新的神經網路自適應控制.系統的辨識模型是由神經網路和系統的已知信息組合構成,在此基礎上,建立時滯系統的預測模型.基於神經網路預測模型的自適應控制器能夠實現期望軌線的跟蹤,理論上證明了閉環系統的穩定性.連續攪拌釜式反應器模擬結果表明了該控制方案的有效性Feed back control base on nonlinear pid with self - adjust parameter and feed forward control base on experience model are employed in the practical application. the realization of this control system and its result are introduced in this paper. because the process of the reaction is complicated, it ' s difficult to model for it
在對中和過程自動控制演算法的探索中,採用了非線性參數自整定控制和基於模型的前饋控制,本文介紹了這種控制系統的實現和現場控制效果,由於中和控制過程的模型極其難以確定,反應過程變化復雜,因此基於模型的前饋控制無法對ph值和流量值的波動進行有效的補償。To order to solve above problems, we design a novel rate - based multicast congestion control scheme - rbmcc, which uses the active explicit congestion indication and representative - based feedback control scheme to inform the source of the status of the network, and alternate the send rate by adjusting the packet intervals between packets. the goal of the dynamic congestion control algorithm is to make the entire system responsive to the changes as rapidly as possible in the offered loads or available bandwidth without getting into an oscillating behavior
針對上述演算法中存在的動態性、靈敏性以及由之引起的公平性等問題,本文第3章設計了一種新的基於速率的組播擁塞控制機制? ? rbmcc ,該演算法利用積極的顯式擁塞指示,基於代表的反饋機制,通過調節包與包的發送間隔來改變數據的發送速率,動態地自適應網路擁塞狀態的改變。Finally, these departments ca n ' t establish the information system and logistic system which can quick respond to the customers relate to cost. quality deliverable our country economy system is changing, it is changing from socialism planning economy to market economy. it is very important for us to research the supply chain management, we can learn from the foreign country " s enterprise practice. our goal of use of scm is controlling inventory, improving supply quality and strengthening the competitive capability
我國航空企業特別是材料采購在傳統計劃體制與運作模式下,多數是自成一個封閉系統,不重視對供應鏈的管理;製造商、供應商和經銷商缺乏長期合作的戰略夥伴關系,相互之間缺乏以信任和共同獲利為基礎的價值鏈,沒有形成滿足顧客在成本、質量、交貨時間等方面的要求而反映敏捷的物流和信息流。我國正在由計劃經濟體制向市場經濟體制轉變,研究國外近來發展迅速的供應鏈管理理論與方法並應用於gj航空公司的實際,對控制庫存、提高服務水平、增強市場競爭能力,有重要的現實意義。Current doctrines related to it fall into tow categories : one is single governance structure which is based on shareholder ' s cost and individualism, but ca n ' t reflect the overall situation of company governance ; the other is multiple governance structure which is based on social cost and socialism, but is too ambiguous to be feasible. this article intends to reconstruct the concept of legal person " s property rights with the combination of enterprise property rights theories and enterprise contract theories. after expounding on the reasonability of the legal - person - property rights - based company governance form, it further analyzes the administrating rights of the providers of legal person " s property rights
主要分為兩種,一種是以股東成本和股東個人本位為基礎的單邊治理結構,這一觀點認為公司屬股東所有,公司的最終決定權應交付股東,由股東獨自構成公司治理的主體,其實質是認為公司生產經營的成本就是股東成本,這一觀點並不能反映公司治理的全貌;另一種是以社會成本和社會本位為基礎的多邊治理理論,這一觀點認為以利益相關者作為參與公司治理的主體,雖然就利益相關者的范圍又有各種不同的觀點,但總體上一般都包括股東、債權人、雇員、顧客等主體。分享友人