速率限制過程 的英文怎麼說

中文拼音 [xiànzhìguòchéng]
速率限制過程 英文
rate-limiting process
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 率名詞(比值) rate; ratio; proportion
  • : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
  • : 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...
  • : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
  • : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
  • 速率 : speed; rate; tempo
  • 限制 : place [impose] restrictions on [to]; astrict; restrict; limit; confine; shut down on [upon]: 限制...
  • 過程 : process; procedure; transversion; plication; course
  1. A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time

    本文將一種高效的數值計算方法? ?多重網格法引入三維靜電場分佈的計算,多重網格法利用和延拓可迅求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法序,驗算了靜電同心球模型的三維場分佈.通與目前在場計算中常用的有差分法進行比較,可以看出多重網格法的計算效和計算精度優于有差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效,縮短了計算時間,因此為后續計算打下了良好的基礎
  2. Back extraction by hno3 - hf and back extraction by concentrated hnch after lower the concentration of organic phase are studied, the method of back extration by hnorhf can not be used to icp - ms, because some zirconium is hydrolysis when hf is removed by heat. however, the method of back extraction by concentrated nitric acid after lower the concentration of organic phase can be used to icp - ms, the recovery is 93. 2 %, rsd % is 5. 24 %, the decontamination factor of uranium is 3. 2xl04, the detection limit of zirconium is 0. 04ng / ml. the method of tta extracting trace zirconium in uranium is firstly used to icp - ms, the result is satisfied, it can be used to determine zirconium in uranic production quickly and veraciously

    本文通研究hno _ 3 - hf反萃和稀釋有機相後用濃hno _ 3反萃這兩種分離方法,認為hno _ 3 - hf反萃由於在加熱去除hf時酸度不易控,導致鋯的部分水解,因而此方法不宜用於icp - ms中,然而稀釋有機相後用濃hno _ 3反萃法用於icp - ms測量中,全回收為93 . 2 ,相對標準偏差為5 . 24 ,鈾的一次去污因子為3 . 2 10 ~ 4 ,鋯的測定下為0 . 04ng / ml ,本文首次將tta萃取分離鈾中鋯用於icp - ms測量中,結果令人滿意,此方法適用於快、準確測量鈾產品中微量鋯。
  3. According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography

    第二章首先以xyz - 1型電化學抑柱為例,分析了電化學抑柱的抑得出影響抑容量的主要因素主要是抑柱的電流效和離子交換膜的極電流密度,因此採用中等交換能力的離子交換樹脂作為抑室的填料以提高電流效,在通常情況下電流效可達到90以上;在選用同種離子交換膜的前提下,可通增加離子交換膜的有效面積達到提高極電流的目的從而提高抑柱的抑容量,因此提出了多級抑的概念並據此研製了共電極式高容量電化學抑柱,該抑柱最高可將流為1 . 0ml / min ,濃度為200mmol / l電導10000 s ? cm ~ ( - 1 )氫氧化鈉溶液抑為電導低至8 . 9 s ? cm ~ ( - 1 )的純水,並且具有穩定性高、分析結果準確等優點。
  4. Firstly, the process of fold and deployment was divided into several steps. secondly, the relative geometry results of the last simulation step was picked up as the initial geometry configuration of current step, using the restarting technology provided by fem programs, then the models of a inflatable structure with an paraboloid shape were established

    然後,基於ls - dyna970中的airbag模型,建立了捲曲折疊空間充氣展開管的有元模型,運用控體積法將充氣管離散為若干連續的腔,成功模擬了其充氣展開,並研究了不同充氣對充氣管展開的影響規律。
  5. The results of the experiment show this creative ac variable frequency speed - governing experiment system can realize the load relationship of direct electromagnetic torque between the motor group, get the continuous control process easily for the reaction load and potential energy load during four quadrant, achieve the total availability of the regenerate energy at any kind of load, and the system consumed power make up under 30 % of actual load power at any kind of load

    該方案研究獲得的實驗結果表明:這種具有創新特色的交流變頻調實驗系統可實現電動機組之間直接電磁轉矩方式的負載關系,可方便地獲得電動機在反應或位能負載特性下四象運行的連續控,並實現了任意負載方式下再生能量的全部回饋利用,任意負載下系統消耗功僅占電動機實際負載功的30 %以下。
  6. Abstract : based on the rigid visco - plastic fem technique, this paper numerically simulate the superplastic bulging process of void - sensitive materials using pressure controlling strategy of maintaining maximum effective strain rate constant and void damage evolution model of superplastic forming

    文摘:基於剛粘塑性有元技術採用最大應變恆定的壓力控策略和超塑性成形空洞損傷演變模型對空洞敏感材料的超塑性脹形進行了數值模擬。
  7. 6 ), the process that h20 is adsorbed on the electrode surface and the hydroxyl group is formed to oxidize the co may be the rate - determining step ; in the region iil ( logi > l. 6 ), all of the tafel curves show a curvature until the current densities reach the peak value, indicative of a possible limiting current. the effect of rare earth elements on methanol electro - oxidation has not been reported in literatures

    在低極化區( logi 1 . 3 ) ,甲醇發生脫氫反應並形成反應中間體,其中co成為未被氧化的毒物,此成為步驟;在更高的極化區( 1 . 3 logi 1 . 6 ) , h _ 2o吸附在電極表面並解離生成[ oh ] ,促進了co的氧化,此為此階段步驟:在第3個極化區( 10gi 1 . 6 ) , tafel曲線發生彎曲,電流密度也最終達到峰值。
  8. It reframes the traceback problem as a polynomial reconstruction problem, and uses techniques from algebraic coding theory to provide robust methods of transmission and restriction. the scheme is a new solution to the traceback problem during a dos attack ; the honeypot for ddos, which is a tool of traceback, lures the attacker to believe that he successfully compromised a slave for his needs, convincingly simulating the architecture of a potential ddos attack ; the source - based approach to ddos defense, which is a useful adjunt to traceback systems, deploys a ddos defense system at source - end networks. attacks are detected by monitoring two - way traffic flows, and the attacks originating from source networks are stopped by rate - limiting ; the routing mechanism based on pushback treats ddos attacks as a congestion - control problem

    最後,就有關ddos攻擊反向追蹤問題,從四個方面對其解決方案進行了研究:在分析比較幾種反向追蹤演算法的基礎上,著重研究了代數方法編碼反向追蹤信息的方案,該方案把追蹤重構問題當作多項式重構問題,使用代數編碼理論技術提供魯棒的傳送和重構方法,是dos攻擊中的反向追蹤問題的一種新的解決方法; ddos陷阱作為反向追蹤的工具,引誘攻擊者相信自己成功與所需的傀儡主機通話,令人信服地模擬出潛在ddos攻擊體系結構;基於源的ddos防禦方法作為反向追蹤有用的補充,將防禦系統部署在源網路,通監控雙向流量檢測攻擊和終止來自源的攻擊;基於向後倒推的防禦ddos的路由機把ddos攻擊看作擁塞控問題,添加功能到每個路由器來檢測並優先丟棄可能屬于攻擊的包,通向後倒推上級路由器也得到通知而把這樣的包丟棄。
  9. Compared with the internal combustion engine vehicle ( icev ), fcev is not restricted by thermal mechanism and carnot cycle and has a higher energy conversion efficiency and a better working condition. at the same time, the fcev can also keep the same dynamic performance, top speed, long driving distance, driving security and comfort. it is considered as the first choice as a kind of clean and high efficient vehicle

    與傳統內燃機汽車相比, fcev不通熱機,不受卡諾循環的,具有能量轉化效高、環境友好等內燃機汽車不可比擬的優點,同時仍然可以保持傳統內燃機汽車的加性能、高度、長距離行駛和安全、舒適等性能,被認為是21世紀首選的潔凈、高效運輸工具。
  10. The anti - lock braking processes based on logic threshold control are simulated in the environment of matlab / simulink software. the influences on logic threshold control abs by the factors such as road condition, initial velocity, the changing rate of braking torque, delay time, inertia and load are discussed at the same time

    運用matlab simulink軟體,對基於邏輯門方法的防抱進行了計算機模擬,並分析了路面、初動力矩變化、延遲時間、轉動慣量及載荷等因素對邏輯門abs的影響。
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