rate constant 中文意思是什麼

rate constant 解釋
速度常數
  • rate : n 1 比率,率;速度,進度;程度;(鐘的快慢)差率。2 價格;行市,行情;估價,評價;費,費用,運費...
  • constant : adj 1 恆定不變的,固定的,穩定的,恆久的;繼續不斷的。2 不屈不撓的,堅韌的。3 忠實的,有節操的。n...
  1. The variation of the return rate constant k with different absolute temperature t deviates arrhenius empiric equation

    反應速率常數隨絕對溫度的變化基本上符合阿累尼烏斯定理。
  2. The birth rate in this city is almost constant

    這城市的出生率幾乎是一成不變的。
  3. Cbr continuous bit rate, or constant bit rate

    連續的比特率或不變的比特率
  4. This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective

    本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷,利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法,提出了在液壓系統中加一個定差減壓閥的新思路,較好地解決了液壓伺服系統存在的上述問題。
  5. The parabolic rate constant b is substantially larger for wet oxidation than for dry.

    在濕氧氧化中拋物線速率常數B比干氧氧化中的大得多。
  6. Abstract : the thermogram of s. dysenteriae of fungistatic action w as determined and the growth rate constant at different concentration of medicin e was calculated, and the optimum allowable concentration of the co salt complex abtained

    文摘:微量量熱法測定並研究計算了在不同濃度的鈷配合物作用下痢疾桿菌的生長速率常數和最佳用藥量。
  7. The electrochemical study showed that the interaction mode is mainly intercalative binding in ph 7. 4 phosphate buffer solution. the uv - vis spectroscopic study further demonstrated the above results. through the electrochemical parameters such as charge transfer coefficient and standard electron transfer rate constant ks in the absence and presence dna, it was found that the reaction of aloe - emodin with dna forms an electrochemical active supramolecular complex

    本文對姜黃素的研究結果表明,在0 . 1m磷酸鹽緩沖液( ph3 . 0 )中,姜黃素于玻碳電極上存在可逆的單電子轉移過程,據此,本文建立了以差示脈沖伏安掃描法檢測姜黃素含量的新方法。
  8. Abstract : determined the power - time curves of the promoter bacteria of ganoderma lucidum for e. coli, using 2277 thermal activity moniter, a new experimental model of promoter bacteria growth were established. the growth rate constant and heat output at different concentration of ganoderma lucidum have been calculated. from - c and q - c curves the optimum concentration has also been established

    文摘:用熱活性檢測儀測定了天然藥物靈芝對大腸桿菌起促菌作用的熱功率-時間曲線,並根據曲線建立了細菌生長的新的實驗模型,按新模型計算了促菌作用下的生長速率常數,發熱量及最佳促菌濃度。
  9. A piezoelectric immunosensor was developed by immobilized transferring antiserum on the surface of quartz crystal to especial answer transferring, it can be get good answer to determined in the range of 3. 92 ~ 79mg / l ; the adsorption and desorption of consult serum on the quartz crystal monitored with tr - antibody, determined the rate constant of immuno - reaction was 2. 14xl07 ( mol / l ) ' 1xs ' 1, the association constant of the immuno - reaction ( k1ss ) was 6. 75xl07 ( mol / l ) ~ l

    Oz vomg l范圍內的參考血請中的轉鐵蛋白進行了定量測定,獲得很好的響應;利用石英晶體微天平技術在線監測了參考血清在固定了轉鐵蛋白抗體的石英晶振上的吸附與解吸過程,測得了其抗原抗體免疫反應的速率常數為2 14xl0 』 ( mol l ) 』 xs 「 『 ,結合常數為6
  10. When human serum albumin was adsorbed on the surface of au electrode or c12sh modified au electrode, different conformations were resulted and the processes of binding vepesid were also different. the corresponding kinetic parameters were obtained by fitting the response curves. the values of heterogeneous standard charge transfer rate constant for fe ( cn ) 637 fe ( cn ) 64 were obtained from the cyclic voltanimograms and the electrochemical impedance spectroscopy, and the electric double layer capacitance was calculated from the impedance semicircle

    當在金電極及修飾了十二烷基硫醇的金電極表面吸附時, hsa以不同結合部位結合導致其吸附后的空間構象存在差異,在隨后的與足葉乙甙給合過程中表現出了不同的結合行為,並擬合了相應的動力學參數。
  11. The intrinsic chemical reaction rate constant was insensitive to the precursor and the calcinations history of cao, but the product layer diffusivity was affected by these two factors in the initial stage and decreased to a constant value with increasing conversion of cao

    化學反應速率常數不受氧化鈣的先驅物與其鍛燒程序所影響,但產物層擴散系數在初始階段則受到上述兩因素的影響,並隨著氧化鈣的轉化而減少至一定值。
  12. The parabolic rate constant b is substantially larger for wet oxidation than for dry

    在濕氧氧化中拋物線速率常數b比干氧氧化中的大得多。
  13. 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:基於剛粘塑性有限元技術採用最大應變速率恆定的壓力控制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過程進行了數值模擬。
  14. The absorption rate constant expresses the speed of absorption

    吸收速率常數表示吸收的速度。
  15. The rate constant of the surface electrochemical reaction was determined as

    ,表面電極反應速率常數
  16. Elimination rate constant

    清除速率常數
  17. Wavepacket ; timedependent ; potential energy surface ; reaction cross section ; reaction rate constant ; ozone

    波包含時勢能面反應截面反應速率臭氧
  18. The simulation results of wcdma uplink is presented and analyzed. it shows that the combined power and rate control scheme achieve good spectrum efficiency and keep the data rate constant over long time periods

    模擬結果顯示我們提出的基於sir平衡的功率速率聯合控制方案使系統有很好的頻譜效率並在長時間保持數據速率為一個恆定值。
  19. The kinetic characteristics of the electrochemical oxidation of adrenaline to adrenochrome was studied by uv - vis spectroscopy. the measurements showed that the electrooxidation of adrenaline to adrenochrome was typical of the first order reaction and the average apparent rate constant is 1. 92110

    以紫外-可見分光光度法為主要手段,研究了腎上腺素電氧化生成腎上腺素紅的反應動力學特徵。研究結果表明:該反應具有一級反應的動力學特徵,且反應的表觀反應速率常數的平均值為1 . 92110
  20. Liposome is an effective nuclide delivery agent for neutron capture therapy. in this paper liposomes containing encapsulated gadolinium complex were prepared and characterized. the influence of formulation factors such as ph, ionic strength, buffer, and storage time upon the stability of liposomes was investigated. the uptake rate constant and its concentration dependence of lgd in tumor cells were compared in vitro with that of gd complex itself. the results indicate that the uptake rate of lgd in tumor cells increases to eight times as much as that of gd - edta, but the release rate of gd from tumor cells containing lgd is remarkably lower than that from the tumor cells containing gd - edta. the results reveal that lgd would be a potential drug for neutron capture therapy of cancer

    制備和表徵了包埋gd - edta的脂質體,測定了ph ,離子強度,緩沖液組成及溫度對gd - edta脂質體的影響,比較了gd - edta脂質體和gd - edta被腫瘤細胞攝入的動力學曲線。結果表明, gd - edta脂質體在37和生理條件下最穩定,腫瘤細胞攝入gd - edta脂質體速率是gd - edta的8倍,而釋放gd的速率, gd - edta脂質體遠遠低於gd - edta ,這些結果提供了脂質體包埋gd - edta作為釓中子俘獲治療藥物的可能性。
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