時變流 的英文怎麼說

中文拼音 [shíbiànliú]
時變流 英文
time-dependent flow
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  1. [ scene change to conan, time passed ] jodie protects camel ' s safety

    [場景變換柯南，時間流逝過去]朱蒂保障卡梅爾的安全
  2. As a result, the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created. damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor. the formulas of fluctuating current and damping coefficient are deduced theoretically, and the calculated results are consistent with the experimental results

    通過分析發現電磁阻尼器線圈內由於轉子渦動時變化的磁場而產生的波動電流與轉子位移間的相位差是產生阻尼的主要原因，推導了波動電流、阻尼系數的計算公式，並通過實驗展示了被動式電磁阻尼器的阻尼效應。
  3. Contraposing the measurement principle of the traditional hotwire air mass flowmeter, the reason of the excursion of the result for flow measurement was analyzed and inferred when environment temperature changed ; the method for temperature compensation and the realization circuit was given ; and compared the theory output of the new type hotwire air mass flowmeter with its real output after temperature compensation

    摘要針對傳統型熱線式空氣質量流量計的測量原理，分析和推導出當環境溫度變化時對流量測量結果產生偏移的原因；提出了一種環境溫度的補償方法和具體的實現電路；並對經環境溫度補償后的一種新型熱線式空氣質量流量計的理論輸出和實際輸出進行了計算與比較。
  4. Results show when velocity of flow remains unchanged in the onflow area and openness of the tube is changed, then resistance coefficient changes obviously

    實驗結果表明：在湍流區域內流速（量）不變時，改變管件開度，阻力系數變化較顯著；改變流量，管件開度不變時，變化不大。
  5. Suction gas pressure goes up as the compressor run at the lower speed in the lower burthen, and this is beneficial to lower systems energy - consume. when the system is controlled by wvf, the discharge change of the evaporator is not linear ; the electronic expansion valve is adopted to regulate the system superheat degree, and the controlled object is parameter time varying, accordingly, the time varying controller should be adopted

    在負荷較小時，壓縮機採用低速運轉，吸氣壓力升高，這對系統降低能耗是有利的；變頻控制時，蒸發器製冷劑流量的變化並非線性；系統中採用電子膨脹閥進行過熱度控制，被控對象具有參數時變的特性，相應地宜採用變結構的控制器。
  6. Using exponential trichotomy and the local geometrical expressions ofinvariant manifolds, the conditions are given for the persistence andtransversality of orbits situated in a heteroclinic manifold withequilibria undergoing transcritical bifurcations

    本文應用指數三分性和不變流形的局部幾何表示方法，給出異宿流形上的軌道當兩個奇點經歷超臨界分支和攝動時保存和橫截的條件
  7. Then, a thunderous sound came from the rear of the house. the kitchen on the back slope had collapsed under the sudden onslaught of a torrential flow of muddy water, and had fallen on the last row of concrete houses on the slope. rocks of all sizes, washed down by the muddy water, smashed through the windows into the rooms and then rushed through the doors into the living room and out into the courtyard at lower levels

    謝師兄在打坐中依稀聽到爸爸走進客廳的聲音，突然一聲山崩地裂的巨響從屋后傳來，後山腰的廚房被突如其來的土石流沖擊倒塌，壓到斜坡上最後一排的鋼筋房子，土石流沖破兩三間房間的窗戶玻璃，大小石塊挾雜在洪水中，從窗口沖進房間，又從房門竄流出來，直奔地勢較低的客廳和庭院，家頓時變成土石流的出水口。
  8. While adopts bang - bang control to realize semi - active control of vehicle suspension system equipped with electrorheologic damper, the coulomb damping force of electrorheologic damper is fixed, as the bang - bang control is two - value control actually. the bang - bang control cannot make full use of performances of the electrorheologic fluids

    由於開關控制是一種二值控制，採用開關控制策略實現對電流變液阻尼器半主動控制懸架系統的控制時，電流變液阻尼器輸出的庫侖阻尼力無法連續變化，不能充分發揮電流變液的特性。
  9. The poynting vector that represent the flow of electromagnetic power density on a sphere from a linear dipole antenna is approximated by the summation of the field of segmented line current as hertz dipoles

    以赫芝偶極之電磁場合成任意長度偶極天線在球面上電磁功率密度流之時變玻因亭向量。
  10. The query module is a retrieval system on internet, it adopts b / s mode of three - layer structure, and has been implemented by using the inner component ado and the third party component fileup of asp technology and sql server 7. 0. this module can support the transmission of multi - media file. the discussion module is a electronic white board which is based on network, it has been implemented by java language and java media framework ( one of java media apis )

    本答疑係統由查詢和討論兩部分組成，查詢部分是一internet上的全文檢索系統，它採用三層結構的b / s模式，利用asp技術的內置組件ado 、第三方組件fileup和sqlserver7 . 0來實現，它能支持與問題相關的多媒體文件的上傳和下載，從而為查詢答疑提供了與問題相關場景（即音視頻信息）的支持；討論部分則是一網上實時交互系統，該系統是以java語言和javamediaapis （ applicationprograminterfaces應用程序介面）提供的jmf （ java多媒體框架）編程實現的網路電子白板，通過它能在ip網路上實現文字、圖形、圖象、音頻視頻信息的實時交流，使網上答疑變得直觀生動和高效
  11. As time went on, he became increasingly paranoid, imagining plots against him perpetrated by the kgb fbi, who he believed were constantly laying traps for him

    隨著時光流逝，他漸漸變得偏執化，臆測著kgb （前蘇聯國安會）或fbi （美國聯邦調查局）要密謀對他不利，狄克相信這些人經常對他設下陷阱。
  12. Cot1s i deri ng that t he exte ] - ioi - in t el - ference mai n1 y comes from t 11e sea fl o v l11elj i t i s un ( lel ' - i1 t el ", thi s nfr ) j { j1t i ; fi + lk, 7 : f } itft, ? } { t ! : i / cx pal7er veri fj ed t he st i ~ ol1g 1 ~ oi ) ust ness of th is fuxzy va1 - iilb1 e st l ' uctul ' c control method against the mode1 uncertainties and external disturhances, such as the variat ions of the sea current i s sdeed and direct ion, ancl it a1 so coinpared it se1f wi t. h the l > ji ) contl ~ o1 ler in comnlon use and the regu1ar variable structure contro11 er

    論文分別討論了潛器縱向，橫向和航向三個子系統在不同條件下的控制問題，考慮到該潛器潛航時外界干擾主要來自海流，驗證了模糊變結構控制方法對模型參數時變及海流速度、方向變化的強魯棒性，同時將該控制器跟實際工程中常用的pid控制器和常規的變結構控制器的控制效果進行比較，並結合實際情況，將該控制器同縱傾調節相結合進行控制以更好地滿足實際工程的需要。
  13. By use of - perturbation method with spatial discretization, the hydraulic transient system controlled by quasilinear partial differential equation was converted to a time - continuous linear system, so that the inverse problem of hydraulic transients under limited pressure could be sol ed with the optimal control theory for time - continuous systems

    採用-攝動法並經過空間離散，將由擬線性偏微分方程式控制制的有壓瞬變流系統轉化為時間連續線性系統，從而使有壓瞬變流限壓控制反問題能應用時間連續系統最優控制理論來求解。
  14. Abstract : the ever increasing number and power of polluting loads ( non - linear, time - variant loads and so on ) connected to the electric power network cause a significant distortion in the line voltage and line current

    文摘:電力系統電網中逐漸增多的「污染性」負荷（如非線性負荷、時變負荷等）正在使電網中的電流、電壓出現越來越多的、顯著的畸變。
  15. The paper analyzes the non - lineal relations of the quantity of heat exchange and water flux of coil exchanger in part - load operating condition, the shortage of deciding the water flux in bypass pipe, the disadvantage that the operating condition of pumps and chiller ca n ' t be met with the load change of the air conditioning system in different operating condition of using pressure - difference bypassing control in primary water pump system. using load control method in the change of the operating condition of primary water pump system can realize that the load change is small and reasonable in the on / off condition of pumps and m m chiller by comparing load control method in primary variable - flow water pump system with pressure - difference bypassing control method, back water temperature control method

    本論文從目前空調工程中使用的變流量水系統入手，研究了盤管換熱器在部分負荷下水流量與換熱量的非線性關系，分析了文獻中介紹的旁通管通流能力選擇的不足之處和一次泵水系統採用壓差旁通控制時，工況轉換不能滿足系統控制要求的缺陷；比較了一次泵變流量水系統中壓差旁通控製法、回水溫度控製法、負荷控製法的精確性，並得出了在一次泵水系統的工況轉換時，採用負荷控製法能使冷水機組及其相應水泵在啟停時的負荷變化范圍較小，更符合建築物的冷量需求，節能效果較好的結論。
  16. Find the law of the influence from the injection pressure to the filling time and the cavity pressure and make certain of the best filling time, injection time and injection pressure. though the analysis of the flowing velocity and pressure spread of the key position element in the injection parts in different gate position, we forecast the injection parts quality and the possibility injection flaw and its position, optimize the gate position. in this paper, though the research of analogue of the runner system of metal - powder injection molding and the process of injection molding, we get the law of how the injection parameter influence the injection process

    在相同的注射條件下，通過分析喂料在不同直徑和長度流道中的流動規律，得到了喂料在流道中的速度場、壓力場和溫度場，找到了流道長徑比的合理取值范圍，並得出通過改變流道設計可實現對現有設備資源充分利用的結論；給出了不同注射壓力下，型腔壓力與充模時間關系曲線和喂料熔體平均充填速度與充模時間關系的曲線，得到了注射壓力對充填時間和型腔壓力的影響規律，確定了最佳的充模時間、注射時間和注射壓力；通過分析採用不同位置澆口注射時注射件關鍵位置單元的流動速度和壓力分佈，預測了注射件的成形質量，或可能產生的注射缺陷及位置，優化了澆口設置。
  17. Lastly, the scaling hypotheses is applied to the relationship of flood volume and duration in this paper. the flood intensity - duration - frequency form is proved based on the temporal scaling property of flood

    最後，本文將標度不變性引入洪水洪量? ?歷時關系中，對大流域年最大洪量隨歷時變化的標度性質行了嘗試性的研究。
  18. This dissertation majorly researchs and designs full digital dc driving system with fuzzy control. it makes a scheme argumentation firstly, analyzing the pid algorithm and fuzzy control algorithm the ordinary digital pulse trigger algorithm and the double remainder method of pulse trigger in detail, and fuzzy control and the double remainder method are put forward to settle the under - mentioned problems, namely, the new viewpoint and the task having finished in this dissertation as follows : ( 1 ) in rder to overcome the influence of dc motor ' s parameter changing with time and nonlinear on the control system performance, this dissertation adopts fuzzy control as outside regulator and pi control as inside regulator in double regulators of the full digital dc motor driving system design ;. ( 2 ) aiming at the pulse trigger reliability of the ordinary d igital pulse trigger being low and leaking the pulse or the order of pulse confusion, this paper adopts the double remainder algorithm with short response time high pulse trigger reliability good adaptability and anti - jamming ; ( 3 ) this dissertation adopts tms320lf2407 which has good performance as major control chip this chip has power function with fast calculation capability, and accomplishes the software and hardware design in the dc motor driving system with fuzzy control ; ( 4 ) this dissertation also puts emphases on anti - jamming in hardware and software ; ( 5 ) after having designed the sample of full digital dc motor driving system with fuzzy control, a lot of experiments are performed to verify the performance and settles problems during experiment. the result of experiment proves the feasibility of design

    首先進行了方案論證，對模糊控制演算法和數字pid調節演算法、觸發脈沖的一般演算法和雙余演算法進行了詳細地研究分析，提出應用模糊控制和雙余法解決下述問題，即該論文主要的新見解和所完成的工作： （ 1 ）為了克服直流電機參數時變性和非線性因素對控制性能的影響，本設計中，雙閉環調速系統的外環採用模糊控制，內環採用pi控制，使系統在一定范圍內對直流電機參數變化和非線性因素影響有自適應能力； （ 2 ）針對常規數字觸發器演算法中觸發脈沖的可靠性不高，經常出現漏脈沖或是脈沖混亂的情況，本文採用雙余法，該演算法具有響應快，可靠性高，具有良好的適應性及抗干擾能力； （ 3 ）本設計中採用了速度快、功能強的tms320lf2407作為系統的主控晶元，應用該晶元完成系統的軟硬體設計： （ 4 ）本文對系統抗干擾的軟硬體措施進行了重點研究； （ 5 ）設計了具有模糊控制的全數字直流傳動系統原理樣機，並進行了試驗驗證，對試驗過程中出現的問題及時解決，最終實驗結果證明設計是可行的。
  19. Induced current electrical impedance tomography ( iceit ) is a new branch of electrical impedance tomography ( hit ). it applies several excitation coils on the boundary of the object. when one of the coils is stimulated by constant alternating current, the magnetic field is established

    感應電流電阻抗斷層成像（ inducedcurrentelectricalimpedancetomography ， iceit ）是電阻抗斷層成像技術的一個分支，它在被測目標的外圍放置若干個激勵線圈，對其施加時變電流，在空間產生交變磁場，從而在被測目標內激勵出感應電流。
  20. To use the dynamic mesh model, it is necessary to provide a starting volume mesh and the description of the motion of any moving zones in the model. this paper describes the motion using a c program, a user - defined function ( udf ), to calculate the linear and angular velocities from the force balance on the store

    與此相映，動態網格計算技術是最近兩年計算流體動力學最新發展成熟的重大成果，並且在先進的cfd計算軟體中得到了實際的應用，開始為計算飛機投彈之類復雜相對運動造成的時變流場等領域提供了實際可行的工程方法。
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