least concentration 中文意思是什麼

least concentration 解釋
最低濃度
  • least : adj (little 的最高級,比較級為 less 或 lesser)1 最小的,最少的 (opp most)。2 最不重要的,地位...
  • 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. Renin secretion is controlled by at least four mechanisms that are not mutually exclusive : a renal vascular receptor responds to changes in tension in the afferent arteriolar wall ; a macula densa receptor detects changes in the delivery rate or concentration of nacl in the distal tubule ; circulating angiotensin has a negative feedback effect on renin secretion ; and the sympathetic nervous system stimulates renin secretion via the renal nerve mediated by receptors

    腎素的分泌至少受四種互不排斥的機制控制:腎血管受體對向心小動脈壁張力變化的反應;緻密斑受體發現遠端腎小管內氯化鈉傳遞速率或濃度的變化;循環的血管緊張素對腎素的分泌的負反饋效應;和交感神經系統經由受體介導的腎神經刺激分泌腎素。
  2. The results of the uni - factor experiments and perpendicular experiments show their best mechanic synthesizing craft as followed : nvp ( 10 % wt ), kh570 ( 20 % wt ), hema ( 70 % wt ), initiator ( 0. 2 % wt ), crosslinker ( 20 % wt ), reacting 20 hours under 80 c. the factors which influenced organic silicon modified pvp hydrogel soft contact lens material ' s swelling capabilities were researched, which included temperature, monomer content, ion concentration etc. the experiments showed the equation swelling content ewc improved with the increase of nw, droped with the increase of kh570 and ion concentration, improved then droped with the raise of temperature, and hydrogels got the least ewc at 45 c. experiment carried on todiscuss water dehydration mechanism of organic silicon modified pvp hydrogel soft contact lens materials, which showed dehydration process could be divided into evaporating stage and diffusing stage

    正交實驗結果表明, nvp ? hema ? kh570共聚物的機械性能最佳時,其合成工藝條件為: nvp用量10 (質量百分含量,下同) , kh570用量20 , hema用量70 ,引發劑aibn用量0 . 2 ,交聯劑nmba用量0 . 2 ,反應溫度為80 ,反應時間16h 。討論了單體配比、溶脹溫度、離子濃度等因素對有機硅改性pvp水凝膠軟接觸透鏡材料溶脹性能的影響。實驗得出:水凝膠材料的平衡溶脹度ewc隨單體nvp含量的增加而增大, ewc隨kh570用量的增加而減小,隨離子濃度的增大而略微降低,隨溶脹溫度的升高先稍微下降後有所提高, 45時平衡含水量最低。
  3. Firstly, in order to deal with the problem that the accuracy of the demarcating concentration calibrate algorithm can ’ t satisfy the requirement, this thesis proposes a new demarcating concentration calibrate based on fitting a curve. the new algorithm uses least square method to keep the accuracy. the measuring results show that the accuracy of the algorithm is higher and it can satisfies the requirement of application

    首先,本文針對生化分析系統中現存的濃度標定演算法不精確,難以滿足實際需要的問題,提出了一種基於曲線擬合的濃度標定演算法,演算法基於最小二乘原理進行曲線擬合以保持測量精度,實際樣本測量表明該演算法具有較好的測量精度,能滿足應用要求。
  4. The concentration of phenolic substances is greatest in the bud and the first leaf of the harvested tea shoot, is progressively less in leaves 1 to 3 and is least in the stem

    在採摘下來的幼苗中,幼芽和頭一片葉子中的酚類物質含量最高,從第一片到第三片葉子,酚類物質依次減少,茶梗中的含量最少。
  5. As testing result indicated that the concentration of benzene in the sample would be lower when benzene was released from it gradually, customs and excise department advised consumers to unpack the purchased goods and expose them in the open air for at least a week before using it indoor

    由於測試結果顯示苯成份水平會隨著揮發而漸見減少,因此海關提醒消費者,在購買塑膠軟地墊時,應在拆封後置于戶外通風處最少一星期才移至戶內使用。
  6. Iii graduate students are expected to write at least one extensive research paper with no less than 10, 000 words either in english or in chinese for one of the courses. for students who want to declare concentration on biblical studies or theological studies or christianity and society or pastoral studies and counseling or christianity in china or christian education or workplace theology, their papers should respectively be related to that concentration

    學生須在其中一個選修科目中撰寫一篇字數不少於10 , 000字之論文(中文或英文均可) ;學生如有專修范圍(聖經研究神學研究基督教與社會教牧學及輔導中國基督教基督教教育) ,則其提交之論文須屬所選之專修范圍;及
  7. Variations in pressure with and without aeration in cavitation region are measured and the compressible characteristics of pressure waveforms and relation between mach number and compression ratio are analyzed ; the time - averaged pressure profiles of different air concentration in cavitation erosion region are measured, the variations of the pressure with air concentration and effects of back pressure on cavitation erosion are analyzed ; the relations between least air concentration to prevent cavitation erosion and flow velocity are proposed ; the cavitation numbers with and without aeration in cavitation region are compared

    實測了空化區摻氣前後壓力的變化,分析了壓力波形的可壓縮流特徵以及馬赫數與壓縮比的關系;實測了空蝕區不同摻氣濃度的時均壓力分佈,分析了壓力隨摻氣濃度的變化及背壓對空蝕的影響;提出減免空蝕的最低摻氣濃度與流速的關系,比較了摻氣前後水流的空化數。
  8. And then the sde ligands were immobilized on the spacer arms - containing paam beads by glutaraldehyde or edc to prepare the bionic adsorbents. the factors that can influence the immobilized ligand density were also studied. the optimum conditions of coupling sde ligands through its - nh to paam beads by glutaraldehyde are : the initial concentration of 5mg / ml ( 8g wet paam beads ) of sde gives more efficient results than the higher ones ; the concentration of glutaraldehyde which activated paam beads is 5 % ; ph of activation is 7. 0 ; the coupling reaction time is at least 4 hours

    同時對影響sde配體固定化量的各種因素也做了初步的探討,結果如下:戊二醛固定化sde配體的最適條件為: sde配體的初始濃度為sing ml (載體用量為sg ,濕重)時,效率最高;活化載體時的ph值為7刀;戊二醛的活化濃度為5 :偶聯時的ph值為7刀;偶聯時間不少於4小時。
  9. The protein level of nf - kb in nucleus peaks at 6 h after stimulation and persists for at least 6 h. pdtc ( pyrrolidinedithiocarbamate ), an inhibitor of nf - kb, the effective concentration of it for nf - kb inhibition without any toxicity on cells is up to 100 umol / l, can significantly block no production induced by oligochitosan. although the study reported herein reveals that oligochitosan induces no production via nf - kb in macrophage, which is an important signaling mechanism of oligochitosan inducing immuno - enhancement of macrophage in vitro

    加入100林mol / l劑量的nf一忍抑制劑毗咯烷二硫代氨基甲酸鹽( pnte )作用於rawz 「 . 7細胞( 4火10 ,個細胞/ ml ) 90rnin ,然後再加入100林留而劑量的殼寡糖對巨噬細胞進行刺激,發現pdtc在各個時間點( 6 、 12 、 18 、 24h )都明顯抑制殼寡糖對巨噬細胞no的誘導作用。
  10. It is firstly found that the nox concentration increases rapidly when is less than 0. 75, which complements the staged combustion and the rich - lean combustion that are well considered currently as low nox combustion. it does not mean that the combustion must be the low nox combustion when < 1. there is a limited least value of air excess coefficient

    對目前普遍認為的分級燃燒和濃淡燃燒可以降低no _ x排放的提法給予補充,即對一次過量空氣系數有一個最小值限定,不是小於1的任何值都可以,低於最小限定值將是不利的,而且一次過量空氣系數有一個最佳值。
  11. At least during meditation, we should forsake all these things so that were able to concentrate better inside ; because only inward concentration will bring us liberation, happiness and peace

    我們可以享受這個世界,享受上帝為我們創造的所有美好事物,但應該看時候,至少在打坐時要統統放下,才能更專心往內集中。
  12. Forecasting of gas concentration in power transformer oil based on least square support vector machine

    基於最小二乘支持向量機的變壓器油中氣體濃度預測
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