field of control 中文意思是什麼

field of control 解釋
場相位調節
  • field : n 菲爾德〈姓氏〉。n 1 原野,曠野;(海、空、冰雪等的)茫茫一片。2 田地,牧場;割草場;〈pl 〉〈集...
  • of : OF =Old French 古法語。
  • control : n 1 支配,管理,管制,統制,控制;監督。2 抑制(力);壓制,節制,拘束;【農業】防治。3 檢查;核...
  1. This thesis tries to solve the problems in the design and construction of jinping cascade 2 hydropower station. a typical section is selected to analysis seepage, seepage control and fem numerical simulation. the influence of different plans of excavation and support on seepage field of subsurface water and stability of adjoining rock are studied. the homologous support pattern is suggested according to the research results

    本文就錦屏二級水電站(一期)深埋長隧洞的設計和施工中面臨的一些問題,選取隧洞的一個典型斷面進行滲流、滲控分析和開挖及支護的有限元數值模擬,從而就深埋隧洞不同的開挖及支護方式對地下水滲流場及圍巖穩定性的影響和所應採取的支護措施等方面進行了探索、研究。
  2. Results the treatment group was superior significantly to the control group in the field of reduction of serum total bilirubin, the total bile acid, the total effective rates, advance of prothrombin activity ( pta ) and alph fetal protein ( afp ) of chronic fulminant hepatitis and the effective rates of the treatment group ( p < 0. 05 )

    結果治療組在降低血清總膽紅素、總膽汁酸、升高凝血酶原活動度、維持較高血清甲胎蛋白水平、提高存活率等方面均優于對照組,差異有顯著性( p < 0 . 05或0 . 01 ) 。
  3. Secondly, we emphasize the field measure & control sub - system design and implementation ' s scheme because it is the main content of this dissert

    然後本論文以大量的篇幅重點論述了「網路化柴油機自動測控系統」中的「現場測控子系統」的詳細設計方案和實現技術。
  4. Soon after the war, electronic control was perfected, and a new field of technology opened.

    戰后不久,電子控制進一步完善,開拓了一個新的技術領域。
  5. Recently, in the field of microfluidics system the drive mode of flow is a key problem, dc electroosmoticflow micropump bases on the principle of electroosmosis, which control the flow in the microchannel with electric field. recent years, it is more and more attracting people to realize it

    當前在微流控系統中液體的驅動方式是一個關鍵問題,直流電滲流微泵是基於電滲原理,利用電場控制通道中的液體流動,實現無運動部件的液體流動系統,近年越來越受到人們的重視。
  6. Field trial experiment of control sweet corn helicoverpa armigera by several chemicals pestiside

    幾種藥劑防治三代三化螟的田間藥效
  7. In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions

    本文從試驗及試驗資料入手,取得以下主要成果和結論:對鹽堿地水稻節水灌溉技術進行優化研究,系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響,採用了多目標模糊優化的方法,對灌水技術進行綜合評判,優選了節水灌溉技術,論證該地區宜採用水稻控制灌溉技術;闡述控灌技術通過調節和控制水稻的需水規律,降低水稻高產情況下的無效水量消耗,從水稻生理、生態節水兩方面分析了控灌技術節水機理,針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點;通過控灌與淹灌的定量對照比較,從根系、莖蘗、冠層葉片及綠葉動態到株高,土壤水分變化,抗病蟲害、抗倒伏能力,稻田土溫變化,產量構成因素及稻米品質等諸多方面進行動態比較,分析控灌技術高產優質機理;在鹽堿稻地採用控制灌溉+間歇淋洗模式,跟蹤測試田間水鹽變化狀況,驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性,通過分析水稻控制灌溉淋洗條件下水稻生理生態指標,提出優化控制灌溉+間歇淋洗組合模式,為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。
  8. The area within the field of fluidics in which components and systems perform functions such as sensing, logic, amplification, and control without the use of mechanical parts

    射流技術的一個領域,其部件和系統執行諸如傳感、邏輯、放大和控制之類的功能,而不使用機械零件。
  9. Specific requirements for the competence of testing laboratories for noise and vibration in the field of immission control

    排放控制區噪聲和振動檢驗的實驗室的能力的特定要求
  10. As the developmental direction of the future of the automation technology, the fieldbus is maturating gradually and is applied to every field of auto - control

    以lonworks技術為基礎的lon現場總線是目前世界上應用最廣泛的一種現場總線技術。
  11. The main contents are as follows : firstly, this paper has analyzed and researched completely to different control system in the field of industrial control. reviewing the phytogeny of process control, this paper has presented background, character, performance, framework and direction of fieldbus control system and ethernet completely and discussed inevitability to intervention in the field of industrial control of the ethernet

    具體的內容如下:對當今工業控制領域的各種控制系統進行了全面的分析和研究,回顧了過程式控制制的發展史,詳細的介紹了現場總線控制系統的發展背景、特點、性能、體系結構和發展方向。
  12. In the thesis, the general situation of the domestic and abroad developments in the field of the numerical control interpolation algorithm for aspheric surface machining is reviewed firstly, for the poorness of recent numerical control interpolation algorithm, an numerical control interpolation algorithm that based on the genetic algorithm ( ga ) and neural network ( nn ) is introduced

    在數控系統中,它是生成加工軌跡的一個最基本的子程序,在很大程度上決定了數控機床的加工精度和最大進給速度。本文首先綜述了國內外非球曲面超精密加工中所運用的插補演算法的發展概況。
  13. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制理論的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的穩定性,同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的正確性,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。
  14. Combined with debugging expirence in the field, the control system of incinerator, including the stocker control system, primary air control system, secondary air control system etc., used in nanshan municipal solid waste ( msw ) incineration power plant has been presented

    摘要結合現場調試經驗,介紹了深圳市南山垃圾焚燒發電廠焚燒爐控制系統,包括爐排控制系統、一次風控制系統、二次風控制系統等。
  15. Though the fieldbus as the communication technology of the automation field can be built as understratum network of intelligent building, but with the increase of the demand of opening, interoperability and integration of control network and information network, the lack of no unified standard, bad opening, difficulty of interoperability, lack equipment, high expense and difficulty of integration was unfolded if the system integration of intelligent building adopts fieldbus completely

    雖然現場總線作為自動化領域的通信技術,可以構成智能建築的底層網路,但出於對網路開放性、可互操作性的要求以及控制網路與信息網路集成等需求,若完全採用現場總線進行建築智能化系統集成,現場總線的標準不統一、開放性差、互操作困難、設備少、費用高以及集成困難等弊端便逐漸顯露出來。
  16. This article states the basic principle of efc in detail, and mentions success a successful sample in the field of control, an inverted pendulum which is analyzed systemically. besides, the theory of efc solves the problem of verticality and back to the center of the inverted pendulum. on this foundation, expert fuzzy reasoning controller is realized by the c language, so as to use cross assemble technique to form machine codes, and solidify the program in the single board computer to realize control

    詳細地闡述了專家模糊控制的基本原理,引用控制界中成功的實例倒立擺進行系統分析,並採用專家模糊控制這一理論解決倒立擺的垂直問題和回到中心問題.在此基礎上用高級c語言來進行專家模糊推理器的實現,以便於用交叉匯編技術形成機器代碼,把程序固化在單片機上實現控制
  17. Information viewpoint and methods are attracting more and more attentions in the field of control theory

    控制系統研究的信息觀點和方法已越來越受到控制領域的重視。
  18. Fuzzy neural network, having strong learning and expressional ability, turns out to be more flexible than the conventional methods when modeling object and acting as a controller in the field of control engineering

    在控制領域,由於模糊神經網路具有很強的學習和表達能力,所以用它們來建立對象模型、充當控制器,具有比傳統方法靈活優越的地方,本文就是對作者在這方面工作的總結。
  19. The kernel for the development of impact identification techniques and the means for error elimination are proposed. on the basis of the modal model theory and the conception of spatial filtering which is derived from the field of control, a more precise force identification model is developed based on the discrete modal filter

    在動載荷識別的模態模型法理論基礎上,通過引入控制領域業已應用的空間濾波概念,提出利用離散模態濾波器的正交特性以分離出各階模態對系統響應的獨立貢獻,構造的動載荷識別模型減少了演算法實現的計算量。
  20. Variable structure control with sliding mode ( vscsm ) has the peculiarity such as reduced order, better robustness and quickly response and it has been broadly used in the field of control with the development of computer technology and the produce of high - speed switch circuit, but it is few applied to complex process systems

    滑模變結構控制具有降階、魯棒性強、響應快等特點,隨著計算機技術的發展和高速切換電路的產生,滑模控制理論目前在控制領域得到了廣泛應用,但是在復雜過程式控制制系統中的應用不多。
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