optimal concentration 中文意思是什麼

optimal concentration 解釋
最適濃度
  • optimal : adj. 最適宜的；最理想的；最好的 （opp. pessimal）。
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  1. Experiment shows that the antigen extracted by autoclave is best for dot - ppa - elisa. applying the x2 test, optimal concentration of antigen was determined, and the optimum dilution of enzyme hrp - spa was 1 : 10. the high specificity of dot - ppa - elisa was proved by the specific blocking test, and also by the cross - reaction test in which the diaphragm does not react with the antibodies against salmonellosis, pasteurellosis, chlamydiosis, hcv, ppv, brucellosis, erysipelas suis, colibacillosis, prv

    試驗中對多種方法提取的診斷抗原進行了比較、篩選；確定了dot - ppa - elisa的最佳工作條件；測定了st - 171株的免疫豬血清抗體及c群、 2型人工感染豬血清抗體效價，並初步確定了該方法的陽性標準。
  2. It is the optimal time for subjecting creatine to the medium when cultured to 12h and the concentration of creatine was 0. 75 %. creatine, sarcosine and choline chloride could induce the creatinase production and creatine was the optimal inducer, but creatinine and urea could not induce the creatinase production. 3 purification of creatinase the process of creatinase purification was performed as follows : first the enzyme was completely precipitated in the range of 40 - 80 % of saturation with ammonia sulfate fraction precipitation

    最佳氮源為玉米漿和蛋白腖，最佳比例為2 ： 3 ，最佳濃度為1 . 6 ；加入其它碳源時有助於菌株穩定產酶； 100ml搖瓶的最佳裝液量為15ml ；肌酸、肌氨酸和氯化膽堿都能誘導菌株產酶，其中肌酸誘導產酶的效果最好，而肌酐和尿素不能誘導菌株產酶；誘導物肌酸的最適加入時間為接種培養12小時后，最適加入量為0 . 75 。
  3. With the software of simulating low - pressure vacuum carburizing process and computer control system, carburizing process parameters are controlled accurately. the minimum error of carburizing layer depth, the optimal distribution of carbon concentration in carburizing layer and the minimum distortion are insured

    均勻布置鼠籠狀加熱元件和多組滲碳氣氛噴嘴，並對滲碳參數進行精確控制，可保證零件最小的滲層深度誤差最佳的滲層碳濃度分佈。
  4. In the volume change study, we found appropriate temperature is helpful for shrinkage control, and different lpas have different shrinkage control effects due to their dipole moment, tg, miscibility with upr and morphology after blending. there existed an optimal concentration range of poly ( vinyl acetate ) based lpas for shrinkage control. lpa was effective for shrinkage compensation in this range, on the other hand, lpa only acted as filler and the low profile effect vanished out of this range, however, for polystyrene based lpa, the more concentration the better shrinkage control

    在膨脹研究中，發現適當的溫度條件更有利於upr達到好的收縮控制效果；不同類型的lpa隨著偶極矩、玻璃化溫度、與upr的相容性、與upr的混合形態的不同，表現出不同的收縮控制效果；聚醋酸乙烯酯類的lpa - a存在一個最佳收縮控制的濃度范圍，在這個范圍之內， lpa起到補償收縮的作用；而在這個范圍之外， lpa的作用僅相當于填料，不能起到收縮控制。
  5. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。
  6. The recombinant vectors were transformed into e. coli m15 respectively and the expression was induced based on the optimal values of the iptg concentration incubation temperature and induction time determined in the previous section

    根據優化確定的iptg誘導濃度、誘導溫度和時間進行誘導表達。 5的積層膠， 15的分離膠，變性聚丙烯酰胺凝膠電泳（ sds - page ）檢查表達情況。
  7. By using inverted microscope, it was observed that dunaliella salina of different growth stages after the high osmotic shocks can live in the medium with nacl concentration between 0. 1m and 5. 0m, but its growth status and period showed differently. the optimal concentration for the growth of dunaliella salina was 0. 5 - 1. 5m, and this organism could stand a variety range of osmotic shock. enolase gene, the anti - adversity gene of d. salina, was cloned by modified degenerate pcr technique

    通過倒置顯微鏡觀察生長在不同鹽濃度，不同生長時期，以及經不同滲透壓震動的鹽藻，四川大學博士學位論文發現其在o . im一5 . omnaci培養基中均能正常生長，但其生活狀態及生長周期有所不同，其最適生長naci濃度為0 . 5一1 . 5m ，還能適應各種高滲及低滲震動。
  8. In determining the optimal concentration of each antibody, we have used a strategy in which the capture antibody is first immobilized at a particular density on the predetermined site of membrane, and the labeled antibody is then varied to retain a maximum signal - to - noise ratio

    在測定每個抗體的最佳濃度中，我們用到了這樣一個方案：先將捕獲抗體以特定的濃度固定在膜上預留的部位，然後改變標記抗體濃度得到最大的信號噪音比例。
  9. Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,

    具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象，在闡述了曝氣過程式控制制參數選取可行性的基礎上，建立了以溶解氧濃度do和活性污泥排放量qw為控制變量，以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀點和污水處理理論，在現有關于污水處理最優控制問題研究的基礎上，建立了有約束條件多變量能耗最小數學模型，該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件，曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化，並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元，應用具有控制約束的共軛梯度演算法對能耗最小這一最優控制問題進行求解，並進行模擬實驗驗證。
  10. Economic monopoly including monopoly caused by concentration of production and natural monopoly characterized by the subadditivity of cost. administrative monopoly is one kind of super - economic monopoly with the abuse of administrative power. monopoly enterprises capture the monopoly profit through controlling the market price with monopolistic output, consumer has to pay more before the optimal output

    根據壟斷形成的原因，可以分為經濟性壟斷和行政性壟斷，經濟性壟斷包括建立在生產集中（或資本積聚）基礎上的經濟壟斷，也包括以成本次可加（資源獨占）為特性的自然壟斷；以行政權力干預市場形成的壟斷，則是一種超經濟的行政壟斷。
  11. When nals was used as the collector in the process, the optimal conditions were the ph of feed solution 5. 0 - 6. 0, air flow rate 100ml / min, the liquid column depths 20cm, the surfactant concentration determined by its cmc and feed concentration. under this condition, the 3 can be above 20. also, the optimal ph ( 5. 0 ) was calculated theoretically for the recovery of the cu ( ii )

    對以十二烷基硫酸鈉為捕集劑的泡沫吸附分離過程的工藝參數進行了研究，並得出本分離系統所確定的最佳工藝參數為： ph5 . 0 6 . 0 ，氣體流量100ml min ，液位高度20cm ，最佳表面活性劑濃度由其臨界膠束濃度和原料液濃度確定，此時（濃縮比）可達20以上；同時還從理論上推算出泡沫吸附分離銅的最佳ph值范圍為5 . 0左右。
  12. In a word, wbaer can effectively remove micro - quantity hmi from dk with alkali metals, alkaline - earth metals and anions at high concentration. on the basis of lots of regeneration experiments of wbaer ( d301g ), the best regeneration manner ( regurgitation regeneration ), the optimal regeneration agents ( h2so4 and naoh ) and the optimum operating parameters of regeneration are obtained

    論文進而對d301g型弱堿性陰離子交換樹脂進行了再生試驗研究，確定了最佳再生方式（逆流再生） ，最佳再生劑（ h2so4和naoh ）以及酸液再生時的最佳濃度范圍（ 2 % 4 % ）和最佳流速范圍（ 3 4m / h ） ；並通過正交試驗確定了逆流再生過程中的最佳運行參數組合。
  13. Higher the post - crosslinking temperature was, the better regularity of the cluster structure of the fibers. the camp aqueous solution wet - spinning process was researched. the results showed, as a spinning solution, the optimal concentration and neutralization of the camp aqueous solution was 25 % and 85 % respectively

    通過對camp水溶液濕法紡絲成形研究發現，當濃度為25 、中和度為85時， camp水溶液具有較好的流動性和可紡性，溶液呈現良好的動力學穩定性，無分層現象。
  14. Electrocatalytic oxidation of glucose at the sensor is determinated with respect to solution ph, temperature and concentration of water - soluble mediator naphthol green b. under optimal conditions, the sensor displays a good linear response in the concentration range of 8. 0 + 10 - 4 mol / l - 3. 6 + 10 - 2 mol / l, and the detection limit is 5. 0 + 10 - 4 mol / l

    文中討論了溶解性媒介體萘酚綠b的濃度、溶液的ph值和溫度對該電極電流響應的影響。這一介體型葡萄糖傳感器在優化的實驗條件下，對葡萄糖表現出良好的響應特性，如響應快、重現性和穩定性好。
  15. The fungus age, enzyme system, osmotic stabilizer, ca2 + concentration influenced on the formation of the protoplast have been confirmed. the result show that 16 - 18hr fermention, 32 1. 0 % cellulase plus 1. 0 % snailase confected by pba ( phosphate blend ammonium chloride ) contant 0. 2 % ca2 +, acted 3 hr is optimal for the protoplast production of aspergillus. niger

    分別採用單因子法和正交實驗法考查，認為16 18hr菌齡的菌絲體， 32 ，用含0 . 2 ca ~ （ 2 + ）的pba高滲緩沖液配製的1纖維素酶與1蝸牛酶的混合酶酶解3hr ，得到的原生質體數最多。
  16. This paper presents an elite inheritance strategy of antibody in memory cells to strengthen the memory function and antibody concentration regulation mechanism of immune system, which can make the immune genetic algorithm ( iga ) converge to the global optimal point more rapidly and stably

    摘要提出了一種記憶細胞精英抗體遺傳策略，能強化免疫系統的記憶功能和抗體濃度調節機制，從而使免疫遺傳演算法更快速、穩定地收斂到全局最優點。
  17. The optimal conditions for the determination of the concentration of the hydrolyzed polyacrylamine in the waste from oil extraction by the starch - cadmium iodide spectrophotometry were investigated and the reaction mechanism was explored

    摘要研究了澱粉碘化鎘光度法檢測油田采出液中部分水解聚丙烯醯胺濃度的最佳測試條件，並探討了反應機理。
  18. It is proved that the new technology is feasible, but 4 important problems must be solved by test, viz, behavior of iron ion in anode ; influence of iron in electrolyte on current efficiency, cathode quality, and the allowable concentration of iron ion ; the optimal concentration of sulphuric acid in electrolyte ; the optimal method of removing iron ion in electrolyte

    但是要進行工業生產，必須經過試驗研究，解決好4個問題，即陽極中鐵的行為；電解液中的鐵離子對電流效率的影響和陰極析出質量的影響，鐵離子的最高允許濃度是多少；電解液中硫酸的最佳濃度是多少；電解廢液中的鐵離子採用什麼方法進行凈化最經濟。
  19. Our experiment indicates : ( 1 ) the optimal concentration of kanamycin for screening torenia fournier regenerated buds was 400 mg / l. the ideal transformation was obtained in the following conditions : the leaf discs were dipped in agrobacterium suspension that od600 was 0. 1 for 10 ~ 20 min ; subsequently cocultivated on the ms solid coculture medium containing 20umol / l acetosyringon for 7 to 8 d at 23, and the induction ratio of regenerated buds was 27. 2 %

    研究結果表明： （ 1 ）篩選藍豬耳轉化芽的最適卡那黴素濃度為400mg l 。 od _ （ 600 ）為0 . 1的菌液濃度菌液浸染葉盤10 20min ，固體共培養基（含20 mol l乙酰丁香酮）上23共培養7 8d可獲得理想的轉化效率，轉化芽誘導率為27 . 2 ； 16h光照， 8h黑暗是較理想的共培養光周期；莖段是較好的轉化受體。
  20. The results indicated that : ( 1 ) marinated in 1 % agno3 for 15min was the optimal sterile condition of seeds. ( 2 ) 2, 4 - d had great effects on the formation of callus, and the optimal concentration was 0. 1mg / l

    在pbi121vp7表達載體成功構建的基礎上，利用質粒pbi121vp7和質粒puc19ctb上相同的ndei和xbai單限制性酶切位點，構建了pbi121ctbvp7融合表達載體。
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