時間最佳控制 的英文怎麼說

中文拼音 [shíjiānzuìjiākòngzhì]
時間最佳控制 英文
time optimal control
  • 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...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 控 : 動詞1 （告發;控告） accuse; charge 2 （控制） control; dominate 3 （使容器口兒朝下 讓裏面的液體慢...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 最佳 : the best; optimum
  • 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
  1. This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content. to prevent the insufficiency or excess of sand water content, the amount of the first addition is set as 80 % of the total water addition amount. after the first water addition, we adopt ar model to predict the stable value of sand compactibility to shorten the time mixing the sand. each time we add water, the correction coefficient is introduced to adapt to the change in the composition of sand. the experiment shows that the mathematics model not only makes the water content in sand reach the best range within shorter time, but also directs how the sand composition should be adjusted, which can better conform to the actual situation

    分析了影響型砂緊實率控制精度的因素，建立了型砂緊實率-水分回歸系數的動態模型.為防止型砂水分不足或過量，將第一次加水量設定為總加水量的80 .第一次加水后，對型砂緊實率穩定值採用ar模型進行預測，以縮短型砂混制時間.每次加水后，引入修正系數，以適應型砂組成的變化.實驗表明，該數學模型不僅使型砂水分含量在較短時間內達到最佳范圍，同時可指示對型砂組成進行調整，能較好地符合實際情況
  2. Some main results of testing research were as fellows : i. in the course of testing of leaching zinc dross, leaching zinc dross by sulfuric acid was researched and the effects on the leaching rate of the zinc dross were analyzed by author, the optimum conditions of leaching testing of zinc dross were determined as fellows : liquid - solid ratio 6 : 1, stirring ratio 250r / min, granularity 120 mesh, the soaking time 5h, the concentration of sulfuric acid of 30 %, and under these conditions, the rate of leaching zinc is above 92. 0 %. ii. in the course of testing of purification, on the basis of comprehending and comparing all present methods of the manganese - removal and iron - removal, the oxidizing method of manganese - removal in zinc sulfate solution using ammonium persulfate was put forward and the oxidizing method of iron - removal in zinc sulfate solution using the goethite process and oxidation - hydrolysis process was adopted

    研究的主要結果具體如下： 1 、研究了硫酸浸出鋅浮渣並分析了影響浸出率的各種因素，確定了浸出鋅浮渣的最佳條件為：液固比為6 ： 1 ，攪拌速度為250r min ，粒度為- 120目，酸浸時間為5 . 0h ，硫酸濃度30 ，鋅浮渣的浸出率大於92 . 0 ； 2 、在綜合和比較了目前除錳和除鐵的各種方法基礎上，提出了過硫酸銨氧化除錳方法和選擇了針鐵礦-氧化水解聯合法除鐵方法，並分析和討論了影響除錳率和除鐵率等各種因素，確定了除錳的條件為：溫度90 ， ph值5 . 4 ，反應時間3h ，過硫酸銨達到理論值的1 . 2倍，除錳率超過99 . 86 ；聯合法除鐵的條件為：氧化反應時間1 . 5小時、溫度控制在90 92 、 ph值5 . 2 5
  3. For the uf progress, the service pressure control below 0. 12mpa is quite reasonable. the best water flushing method is direction flushes - the recoil flushes - suitable flushes. the best flush time is 60 - 80s ; the best recoil washes current is about 2 - 2. 5 times of the produce water current

    2 .在超濾工藝中，操作壓力控制在0 . 12mpa以下比較合理;最佳水力沖洗方式為順沖-反沖-順沖;最佳的反沖洗時間為60 - 80s ，最佳的反沖洗流量為產水流量的2 - 2 . 5倍。
  4. Many researchers have conducted experimellts about it, but not succeeded. culture media were compared to find the best medium of gingkgo culture for controlling callus browning by different sugars, antioxidants and sorbents. the result showed that the medium with ms + zt 1. 0mg / l + naa 1. 0mg / l + sucrose 50g / l + agar 8g / l + ac 2g / l was the best medium, at l5 days subculturing intervals

    銀杏組織培養過程中，尤其是在愈傷組織的繼代培養中，褐變現象特別嚴重，曾有不少的人做過這方面的研究，但都沒有成功，而本研究通過對不同糖類物質、抗氧化劑、吸附劑以及不同的培養基對褐變的影響和控制效果，探索出有效控制褐化現象發生的最佳培養條件，試驗結果表明： ms + zt1 . 0mg / l + naa1 . 0mg / l +蔗糖50g / l +瓊脂8g / l + ac2g / l培養基上的繼代效果最好，繼代時間最好在15d左右。
  5. The surface modification of foils contributes to the activation of surface before etching, and consequently provides more pit sites. the redemption and regeneration of passive film on foil surface lead to continuous growth of tunnels. anodized in oxide - forming acid, the etched foil shows higher capacitance

    侵蝕前鋁箔的表面改性處理研究了堿性、酸性溶液、直流電和低頻交流電對比容的影響，結果表明堿性溶液和酸性溶液處理有利於活化表面、提高比容；直流電和低頻交變電流表面改性需嚴格控制時間在5s內，最佳為2s ，可提高比容8 10 。
  6. By comprehensive considerate the intercoupling relationship between the side - slip angle and the yaw rate, the combine - control strategy ’ s predominance distinctness because it overcome the disadvantages of the large side - slip angle under the - control and can ’ t following the ideal yaw rate under the - control. vehicle possesses optimal control stability with the combine - control obviously

    由於聯合控制策略綜合考慮了質心側偏角和橫擺角速度之間相互耦合的關系，克服了單獨橫擺角速度控制時質心側偏角過大，以及單獨質心側偏角控制時對理想橫擺角速度跟蹤不好的缺點，因而優勢明顯，聯合控制策略下的車輛具有最佳的操縱穩定性。
  7. This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver, studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels. the theory and key technical of adaptive modem is discussed. in the last, an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission, this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer

    本文在對短波數傳兩種常見調制方式fsk及psk最佳解調性能分析的基礎上，討論了幾種採用典型調制技術的短波數傳系統（如時頻調制、多進制頻移鍵控慢跳頻、 chess系統）原理、優缺點以及抗衰落和抗符號間干擾的性能；分析了自適應串列數傳系統抗短波通道衰落和多徑干擾的原理、關鍵技術；在本文的最後引入一種有望解決短波數傳系統低效率狀況的調制方式bcm -分組編碼調制，給出了一個採用bcm技術與自適應均衡技術相結合的短波數傳系統方案，並通過計算機模擬進行了初部驗證。
  8. Considering the high correlation between quantity demand of spare parts and life of equipment, this paper offers an inventory model to determine the times of order, reorder point and quantity of spare parts during the whole life of equipment on condition that the demand rate of spare parts changes with time while the total cost of ordering and stocking is lowest

    基於備件的需求量與設備使用周期密切相關這一關鍵點，從設備的整個使用周期入手，結合設備的使用情況，在備件需求率隨時間變化的情況下，對備件庫存控制問題進行了研究，建立了在設備整個使用周期內使備件總訂貨成本和存儲費用最低的數學模型，給出了備件最佳訂貨次數、訂貨時間和訂貨批量的計算公式。
  9. Therefore it is reasonable that special surface of steel - making slag powder is controlled in the rang between 450 - 500m2 / kg. furthermore, when special surface of different steel - making slag powders are close, steel - making slag powder, which surface is attached lot of fine particle powder or which degree of roundness is high, has higher cementitous property

    實驗結果表明，提高比表面積可提高鋼渣粉的膠凝性能，但當比表面積超過500m ~ 2 kg時，鋼渣粉的膠凝性能提高已不顯著，鋼渣粉的最佳比表面積應控制在450 500m ~ 2 kg之間；比表面積相近時，表面有細小顆粒吸附且顆粒圓形度高的鋼渣粉有相對較高的膠凝性能。
  10. Generally speaking activity of steel - making slag is higher than first grade fly ash. influence of special surface and particle morphology of steel - making slag powder on cementitous property is studied by experiment. results show that cementitous property of steel - making slag powder increase with increase of its special surface, but increase of cementitous property is not obvious when its special surface is beyond 500 m2 / kg

    實驗結果表明，提高比表面積可提高鋼渣粉的膠凝性能，但當比表面積超過500m ~ 2 kg時，鋼渣粉的膠凝性能提高已不顯著，鋼渣粉的最佳比表面積應控制在450 500m ~ 2 kg之間；比表面積相近時，表面有細小顆粒吸附且顆粒圓形度高的鋼渣粉有相對較高的膠凝性能。
  11. For the above reason, many thermopower control systems are not able to run as red lines, even not to work in automatic state over a 1ong period of time

    這不僅要花費大量的投試和整定時間，並且很難獲得最佳的控制效果。由於以上原因，相當一部分熱工過程不能達到「壓紅線」運行，甚至無法長期投入自動運行。
  12. The article introduces the basic concepts and common methods of fuzzy mathematics, initially discussing the applications of fuzzy mathematics in the following aspects : 1 ) division of " skidding " strata with grade of membership that are drilled with diamond bits ; 2 ) comprehensive evaluation on the application in evaluation of diamond bits, classification of rock drillability, and evaluation of clay ; 3 ) classification of " hard rock " through fuzzy clustering analysis ; 4 ) estimation of completion time of boreholes and evaluation of underg round water with fuzzy mathematics ; 5 ) identification of new ore areas and option of best water resource area with fuzzy model ; 6 ) option of diamond bits and evaluation on oil field development plan with fuzzy resemble option and the improved calculation method ; ? ) prediction of mud slurry performance and of the amount of surging water in ore pits with fuzzy control ; 8 ) comprehensive evaluation of diamond bits and supporting plan of deep foundation pit with fuzzy optimal theory

    初步探討了以下幾方面的應用： 1 ）用隸屬度劃分金剛石鉆進「打滑」地層； 2 ）綜合評判在金剛石鉆頭評價、巖石可鉆性分級及鉆探造漿粘土評價中的應用； 3 ）用模糊聚類分析進行「硬巖石」分類； 4 ）用模糊數進行鉆孔竣工時間預估及地下水質評價； 5 ）模糊模式識別在新礦區類型識別和最佳水源地選擇中的應用； 6 ）模糊相似選擇及其改進演算法在金剛石鉆頭選擇和油田開發方案評價中的應用； 7 ）模糊控制在泥漿性能和礦坑涌水量預測中的應用； 8 ）優化理論模型在金剛石鉆頭和深基坑支護方案綜合評價中的應用。
  13. Firstly, the mechanism of the preparation of superfine quartz powder with ball mill is studied in this article, based on nature of quartz material, griffith ' s strength theory and the crush theory of planetary ball mill. the problem of granulation during the process of the preparation of superfine quartz powder is studied minutely. and proposed increasing dispersant and disperser medium to restrain granulation, and dispersing use ultrasonic after milled

    首先，本文結合石英材料的基本物性，以格里菲斯強度理論和行星式球磨機的粉碎原理為基礎，研究了球磨法制備超細石英粉體的機理，同時對粉石英制備過程中的團聚問題及其控製作了細致的研究，提出粉磨過程中增加分散劑和分散介質來抑制團聚，粉磨后採用超聲法進行分散，並確定了最佳分散劑、分散介質的用量和最佳超聲分散時間。
  14. The second is the software, which based on the vb6. 0, communicates with the hardware circuitry by the mscomm activex, completes the save, view and others of the inspection data with the access database, designs a high precision clock, at last, analyses the inspection data to find the best project and transmit the result to the tipper ' s control room by http

    第二部分為配套的軟體設計，基於vb6 . 0軟體平臺進行開發，運用通信控制項mscomm與設計的硬體電路進行通信，採用access數據庫完成檢測數據的保存、查看等操作，並設計了高精度定時器來記錄時間，最後，對檢測數據進行分析，確定最佳翻卸方案，並將檢測結果通過http傳送到翻車機控制室。
  15. Process capability index ( pci ) is also an important method to measure and improve quality, which has play a key role in assuring quality evidence, lowering cost and raising customer satisfaction indexes ( csi ). this paper studies the applications of pci and control chart from the actual viewpoint, and discusses the applications of the probability a, ( 3 of type i, ii error of the control chart, the detecting power and pci based on x control chart. in addition we explore the relationship between qlf and pci, put forward the concepts of relative loss and loss extent, adopt the linear plan to optimize pci and decide the best loss extent of each process. an example is given

    ）控制圖為例，討論了控制圖的兩類錯誤、檢出力與過程能力指數在實際中的應用；重要的是討論了質量損失與過程能力指數之間的關系，提出了相對質量損失、損失度等概念；研究了多道工序相對質量損失、損失度對總質量損失的影響，並從質量損失的角度出發，採用線性規劃的方法，優化多工序的過程能力指數，確定各道工序的最佳損失度，實證討論了這種關系，同時可以利用這種關系對供應商進行評價，給出了從全局的、動態的角度選擇供應商的方法，為上下游企業間的配合、監督及共同進步提供了理論基礎和實現途徑。
  16. In order to reduce the communication time between the high - speed and low - speed flows in 2d space, and to get the optimum interconnecting control of traffic flow to the highway pavement maintenance, the fluid characteristic parameters are utilized to appraise traffic conflict trend

    基於減少高速流和低速流在二維空間上的交匯時間，實現高速公路路面養護與交通流關聯最佳控制的要求，應用管道流變特性參數解釋高速公路養護作業產生的交通沖突特徵，建立了控制施工作業設備與高速交通流的數學模型。
  17. First, according to the demand of vimp for resin system, the reaction kinetics and rheological of up resin are investigated and the optimal content of low additive profile ( lpa ) is determined. then vimp based on a high - permeable medium and grooves are studied by visual experiments, through which the appropriate high - permeable mediums are selected and the parameters of width, depth and spacing for flow grooves and spacing for supply grooves are optimized. furthermore, various factors affecting the mold filling process are discussed and the whole vacuum infusion procedures are described taking examples of the manufacture of a model boat and a sandwich panel in one infusion

    文中首先根據vimp對樹脂體系的要求，對vimp用不飽和聚酯樹脂體系的動力學和流變學性能進行了研究，確定了最佳低收縮添加劑的含量；對高滲透介質型和溝槽型vimp開展了實驗研究，通過可視化實驗優選出較好的高滲透介質，確定了引流槽的寬度、深度和槽間距及主槽的槽間距等工藝參數並進行了優化；對影響充模過程的各種因素進行了詳細的討論，並以模型船和夾芯面板的製作為實例描述了兩種vimp的成型過程；在實驗的基礎上，建立了二維滲漏模型，採用控制體有限元法對高滲透介質型vimp進行了成型過程的計算機模擬計算，通過充模時間和流動前峰的計算值與實驗結果的比較，驗證本文所採用的數學模型和數值方法的正確性，其結果對實際生產具有一定的理論指導意義。
  18. All of these are aimed to reduce pollution and consumption, enhance the efficiency. at last the results of analysis, which is the best value of the air - fuel and the firing angle of minimal engine with the various operating mode of engine, write these data into dedicated memory for engine. when motorcycles are running, in accordance with the various operating mode of engines, the air - fuel and the firing angle of minimal engine are being controlled

    通過單片機對小型發動機進行電控實驗，對發動機空燃比和點火角進行調整、進行電控參數優化，最後將優化出的結果，即發動機各種不同的工況下，小型發動機的點火角和占空比的最佳值，存入單片機，從而在摩托車實際行駛過程中，實現對發動機的點火角和占空比的有效控制，調整空燃比和點火時間使發動機工作在最佳的狀態，從而改善發動機的性能。
  19. It includes reducing the density of medicines, choosing the optimal medicine proportion, choosing unpolluted catalyst and controlling response time properly

    其中包括降低藥品濃度；選擇最佳藥品是配比；選擇無污染的催化劑；合理控制反應時間。
  20. Lock mechanism of that concurrency control can effectively void the dead - lock, two phase commit can guarantee atomicity of the distribute transaction while distributed transaction is executed with which the consistency of the database system is guaranteed. the method of checking the inconsistent is mainly to track the update status of multiple repetitions when distributed and parallel database system is not busy, and to detect inconsistent early. consequently, system can be recovered to best status

    數據庫在執行分散式事務的時候，並發控制的鎖機制可有效的預防分散式事務中的死鎖現象，兩階段的提交協議可以保證分散式事務執行的原子性，從而有效地保證了分散式并行數據庫系統的一致性，不一致性檢測的方法主要是在保證系統非繁忙狀態下對多個副本間的數據庫的更新狀態進行跟蹤，也保證了數據庫多個副本間不一致狀態的及早發現，從而使系統及時地恢復到最佳運行狀態，提高了分散式并行數據庫系統的可用性。
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