有效中濃度 的英文怎麼說

中文拼音 [yǒuxiàozhōngnóngdù]
有效中濃度 英文
median effective concen-tration
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 濃 : 形容詞1. （液體或氣體中所含的某種成分多; 稠密） dense; thick; concentrated 2. （程度深） （of degree or extent） great; strong
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 有效 : effective; valid; efficacious
  • 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
  1. The primary results showed : using m199 as diluents containing 20 % bovine serum, it is better to freeze the cells slowly freezing at fist then increase freezing speed ( for example, from 0 to - 6 freezing speed is about - 0. 05 a minute, from - 6 to - 40, freezing speed is about - 0. 5 a minute ), studies on effect of various concentration of dmso demonstrate that about 12. 5 % dmso gave the highest post - thaw percentage of viable cells. the concentration of bovine serum had no different effect on the percentage of the viable embryo cells of misgurnus auguillicaudatus. the embryo cells derived 6 from the later stage of blastula offish is more resistant to the cryogen than the cells of early stage of blastula. the cells preserved in liquid nitrogen at - 196 were thawed and cultivated, a few cells were found adhere to the surface of culture vessel when the percentage of viable cell was more than 30 %. the cells in only two culture vessels were found to proliferated and gave rise to many small morphologically undifferentiated cells

    研究初步表明:以細胞培養液m199 （含2既的小牛血清，常規量雙抗）為凍存稀釋液對泥鰍胚胎細胞冷凍保存宜採取先慢后快的方式（例如，從0一一6 ，凍存速度為一0 . 05 / min ，再以一0 . 5 / min的速度從一6一一40 ） ; dmso的保護效應濃度為12 . 506左右;小牛血清的濃度對泥鰍胚胎細胞的成活率影響不明顯;囊胚晚期細胞抗凍性比中早期強;通過對不同批次的凍存細胞解凍培養，解凍后成活率為30 %以上細胞培養數天後均有少數細胞貼壁，但只發現兩瓶培養細胞有明顯增殖現象產生許多未分化的小細胞。
  2. Study leader professor angela clow, from the university of westminster, said : " measurement of cortisol in saliva is an effective way of quantifying a person ' s stress levels

    此項研究的負責人，英國威斯敏斯特大學的安吉拉克洛教授對此表示： 「通過唾液中的皮質醇濃度可以有效地判斷一個人的壓力水平。
  3. The city workers were also given an audio - visual tour of london ' s only roman amphitheatre. study leader professor angela clow, from the university of westminster, said : " measurement of cortisol in saliva is an effective way of quantifying a person ' s stress levels

    此項研究的負責人，英國威斯敏斯特大學的安吉拉克洛教授對此表示： 「通過測量唾液中的皮質醇濃度可以有效地判斷一個人的壓力水平。
  4. The method of obtaining high concentration of na2feo4 solution by quick electrolysis mainly contains four aspects : adoption of either a diaphragm or an ionic membrane electrolytic cell in which a thin anodic cell lying between the two cathodes, ( 2 ) using an iron anode that has larger specific surface area, ( 3 ) keeping suitable concentration of naoh in the anodic cell, adoption of lower current density and higher electrolyzing speed. the practical technique parameters follow a s below : the naoh solution of 14 - 16mol / l, the temperature of 303 - 308k, the surface anodic current density of 300a / m2, the unit electrolyzing speed of efficiency larger than 6. 0a / l

    快速電解獲取高濃度na _ 2feo _ 4溶液的方法，主要包括四個方面：採用兩陰極室夾一厚度較小的陽極室的隔膜（或離子膜）電解槽；使用比表面積較大的鐵網陽極；保持陽極室中有適宜濃度的濃naoh溶液；採用較低的電流密度和較高的電解速度。具體工藝參數是： 14 16mol / lnaoh溶液、溫度303 308k 、表觀陽極電流密度300a m ~ 2 、有效單位電解速度6 . 0a / l 。
  5. The addition of surfactant to etchant can protect surface from intense dissolution, and keep a relative similarity of dissolving activity between surface and tunnel walls. in order to gain a satisfactory enlargement of tunnels, the etchant temperature should be controlled at 70 - 90

    3a / cm ，嚴重，使比容降低;溶液中添加表面活性劑可以有效地抑製表面溶解，提高比容;適宜的擴孔條件為:溫度80oc ; h +濃度lmol / l0
  6. The time defiance intensive repair serum from artistry contains 33 different kinds of highly concentrated essences and an advanced dna complex containing 10 precious plant extracts such as licorice root extract, alpinia speciosa extract, sunflower seed extract, echinacea extract, centella asiatica extract, hexose, hydrolyzed oats, rosemary leaf extract, vitamin c derivatives and t4 endonuclease ( extracted from the bacteria micrococcus leutus )

    雅姿特效滋養活顏14 ，每瓶含有33種珍貴護膚成分之高度濃縮精華配方，其中以尖端科技提煉的dna復合精華，包含10種珍貴天然植物精華，包括?甘草根、月桃葉、向日葵籽、紫錐花、積雪草、己糖、燕麥和迷迭香、維他命c提煉物與t4酵素，有效提供5大護膚功效。
  7. Rat cumulus - enclosed oocyte ( ceo ) and denuded oocyte ( do ) both spontaneously resume meiotic maturation in vitro, when cultured for 2h, the germinal vesical breakdown percentage of do reaches up to 88 %, and ceos get 53 %. oocytes begin to extrude first polar body 1 ( fb1 ) when cultured for 8h. mouse oocyte spontaneous maturation in vitro can be inhibited by 4mm hypoxanthine ( hx ) or 25um 3 - isobutyl - methylxanthine ( ibmx ). while, 4mm hx can not inhibit the spontaneous maturation of rat oocyte, and the lowest effective concentration of ibmx to inhibit rat oocyle spontaneous maturation in vitro is 50um. treated with the same concentration of ibmx, gvbd percentage of rat ceo is lower than that of do, the results indicat that cumulus cells delay rat oocyte spontaneous maturation and potentate the inhibition effect of ibmx, but it ' s not the case on mouse

    Ceo和do培養8h時都開始排出pb1 ；在卵母細胞成熟抑制模型中， 4mm次黃嘌呤（ hx ）和25 m的異丁基甲基黃嘌呤（ ibmx ）是小鼠卵母細胞成熟的有效抑制劑，但4mm的hx抑制大鼠卵母細胞成熟效果不理想，用hx - m199和hx - mem培養24h ， gvbd率分別為61 ， 81 ，而ibmx有效抑制大鼠卵母細胞自發成熟的最小濃度為50 m ， ibmx可以降低大鼠ceo和do的gvbd率，但ceo中的卵母細胞gvbd率要顯著低於do的gvbd率， 100 m的jbmx處理24h后，大鼠ceo和do的gvbd率分別為24 ， 84 ，提示卵丘細胞的存在可以延遲大鼠卵母細胞的自發成熟，有助於抑制卵母細胞成熟，但在小鼠上ceo和do的自發成熟差異不明顯。
  8. The killing effect on oncomelania hupensis by lixivium of pterocarya stenoptera, nerium indicum, rumex japonicus and their mixture was studied. differences of the snails mortality were studied also. the three kinds of plant material could kill the snail effectively both in spring and in autumn. but the mortality was different when the experiment is done in different seasons or with different lixivium. the effect in spring was better than that in autumn. n. indicum was the most effective among the three kinds. the effect by mixture was better than that by unitary material, and the effect by the mixture of the three kinds was better than that by two kinds. the variance analyses showed that the experiment could be modified, and some ingredients concentration in mixed lixivium could be reduced. the experiment was valuable in enhancing the power of killing the snail and saving plant material

    對楓楊、夾竹桃和土大黃以及它們的組合水浸液的滅螺效果作了比較研究，結果表明: （ 1 ）滅螺效果均隨水浸液濃度的增高而增強; （ 2 ）這3種植物材料及其組合水浸液的滅螺效果都是春季比秋季好; （ 3 ）組合水浸液的滅螺效果比單一植物材料水浸液的滅螺效果好; （ 4 ）方差分析的結果說明植物材料組合水浸液滅螺在保證滅螺效果的前提下，還可以適當降低組合水浸液中的濃度.以上結論對提高植物材料的滅螺效率和節省植物材料的使用量有著重要的意義，同時也為組建植物滅螺群落提供了有益的參考
  9. The iron doped tio2 thin films showed almost no photocatalytic activity for the photodegradation of no in the gaseous phase when the calcination temperature was lower than 400 c. this was due to the fact that the phase structure of the film was amorphous. at 400 c, the film appeared obviously photoactive du

    對于用液相沉積法所制備的tio :薄膜，薄膜中的si （或fe ）含量和薄膜的厚度可通過調節前驅體濃度、溶液的ph值、基片的沉積溫度和沉積時間，薄膜的熱處理溫度和時間進行有效地控制。
  10. 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 。
  11. Analysis of experimental data indicates that there exist several following problems during the whole operation : first, the emission is serious and the density of hc and co smoke is very high at on and off period. second, there is oil dripping from the dripping vitta as a result of the fault of ignition system and combustion structure. the last, there might be accidents of disabled ignition resulted from the improper operation at the beginning

    通過對樣機的試驗分析和研究表明，汽車空氣燃油加熱器在整個工作過程中，其排放存在以下三個問題：一、開機和關機兩個階段的排放問題嚴重，廢氣中hc和co的濃度值及煙度測量值都很高；二、因點火系統和燃燒結構的缺陷而導致開機后一段時間內有油滴從滴油管滴落；三、在點火過程中，會出現因操作不當而點火失效的現象。
  12. 24 days later, recorded the results : the quantity of the algea the rate of increase of height, the phosphorus concentration and ph of the mediums

    24天後測定實驗體系中的沙角衣藻的活藻生物量、水稻苗的植株長度增長率和培養基中有效磷濃度、 ph值的變化情況。
  13. Two weeks later, recorded the results : the quantity of the algea and the phosphorus concentration in the mediums, the rate of increase of height and the phosphorus of the rice

    培養兩周后測定培養基中的沙角衣藻的活藻生物量、有效磷濃度和水稻苗的植株高度增長率以及水稻中的含磷量。
  14. The author finded out that the rice in the mediums with phosphorus and phosphate rocks can grow well, the quantity of the algea and the phosphorus in the mediums increase. on the contrary, in other mediums the rice appear to be short of phosphate

    其中，全磷培養基和含磷礦石粉的無磷培養基中雜交水稻正常生長，沙角衣藻生物量較實驗前有所增長；由於實驗梯隊磷礦石的轉化作用，使培養基有效磷濃度均較實驗前也有所增長；而其他實驗組水稻均出現不同程度的缺磷表徵。
  15. Biosorption is a process that utilizes inexpensive active / dead biomass to sequester heavy metals and is particularly useful for the removal of contaminants from industrial effluents. compared with conventional methods such as ion exchange and precipitation with lime, the biosorption process offers the advantages of low operating cost, minimization of the volume of chemical and biological sludge to be disposed of, high efficiency in detoxifying very dilute effluents

    生物吸附技術是環境領域近年來迅速發展起來的處理工業污染廢水的新技術，它以各種生物（菌類或藻類）吸附廢水中的重金屬離子，具有吸附容量大，選擇性強，效率高，消耗少，並能有效的處理含低濃度重金屬離子廢水等優點。
  16. The reason to cause this phenomenon is due to the change of electric field in the blue oled to induce the probality of the carrier shifted and the hole - electron recombination zone changed, which was a possible alternative to achieve color display. 3 ) device with the structure of ito / npb / adn : balq3 / alq3 / mg : ag was fabricated. when the balq3 dopant concentration was about 25 mol %, a high performance devcie with luminous efficiency of 1. 0 lm / w, the peak of emission spectrum at 440 nm, the cie coordinate at ( 0. 18, 0. 15 ), and half lifetime of unencapsulated device about 950 hrs was achieved

    導致本現象的原因是由於各有機層電場強度的變化影響了空穴和電子的隧穿幾率，從而導致載流子的復合區域發生改變而發出不同顏色的光; 3 ）制備了結構為ito / npb / adn : balq3 / alq3 / mg : ag的藍光oled ，空穴阻擋材料balq3的摻入顯著影響了oled的光電性能，當balq3的摻雜濃度為25mol %時， oled的發光效率為1 . 0lm / w ，發光光譜的峰值為440nm ，色純度為（ 0 . 18 ， 0 . 15 ） ，未封裝器件的半衰期達到了950小時; 4 ）在藍光材料adn中摻雜npb 、 balq3和tbp三種材料時，不僅改善了器件的發光亮度和色純度，而且提高了器件的發光效率和壽命。
  17. 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。
  18. Conclusion : seminal carnitine concentration may be an appropriate marker of sperm and epididymal function. l - carnitine / l - acetylcarnitine treatment may be an effective therapy to improve mainly functional seminal parameters

    結論：精液中肉堿濃度可能可以作為一個指標用於檢測精子和附睪功能。復合服用左旋肉堿加乙酰左旋肉堿，是提高精子質量和數量的主要參數的一種有效治療方法。
  19. The application of the method will effectively alleviate and prevent the arteriosclerosis and prevent the occurrence of cardiac and cerebral blood vessels

    使其在血液中濃度降低。從而緩解和預防血管硬化的發生，有效地預防心腦血管疾病的發生。
  20. Putting the potassium permanganate into the filter can improve its effect, the removal of organics and ammonia is increased, the influent concentration can satisfy the water reuse standard. but the turbidity of influent is unsatisfactory. the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed. the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2, hydraulic loading is 2. 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1. the influent concentration of organics is blow 7mg / l. from the beginning to 30cm of the anoxic filter, the removal of the organics is significant ; as the c / n ratio increasing, the influent concentration of ammonia is decreasing. when the c / n ratio is 3. 60, the enfluent concentration of ammonia is 3. 05mg / l which satisfies the water reuse standard. when the c / n ration is less than 3. 60, because of the imperfection

    迴流比為2 : 1 ，水力負荷為2 . 55m3 / m2 ? h ，好氧柱氣水比為3 : 1時試驗表明:不同的c / n （ 1 . 05 7 . 45 ）下，兩級曝氣生物濾池對有機物有很好的去除作用，出水有機物濃度小於7mg / l ，其中在缺氧柱進水端30cm內對有機物的去除最為明顯;隨著c / n的增加，系統出水氨氮濃度降低，當c / n為3 . 60時，出水氨氮濃度降到3 . 05mg / l ，已經滿足回用水的氨氮標準; c / n < 3 . 60時，因為缺氧柱的不完全反硝化，體系中硝酸鹽氮和亞硝酸鹽氮發生積累影響了好氧柱的硝化反應使氨氮降解效果較差;系統對總氮的去除隨著c / n的增加而增加，當c / n為3 . 60時，出水總氮已經降到11 . 18mg / l ，滿足回用水的要求。
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