light concentration 中文意思是什麼

light concentration 解釋
低濃度
  • light : n 1 光，光線；光明，亮光 （opp darkness） Hang the picture in a good light 把那幅畫掛在能看清楚的...
  • 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. On the base of these theory calculations, we passivated the front - surface both of different surface doping concentration solar cells by a thin layer of thermally grown sio2. the results show that the in heavy surface doping concentration cell is lower compared to the cell in light surface doping concentration. the majority of improvement in comes from the emitter surface passivation

    接著採用sio2作為鈍化膜，從實驗上比較了在不同表面濃度下單晶硅太陽電池的鈍化效果，結果表明在高表面濃度下其開路電壓比低表面濃度下的開路電壓低，這開路電壓的提高主要來源於降低了前表面復合。
  2. The energy saving technology of countercurrent multi - effect evaporation for light alkali concentration

    逆流多效蒸發淡堿濃縮工藝節能技術研究
  3. Both reduced irradiance and defoliation caused decreased slm ( specific leaf mass ). ( 4 ) generally, chlorophyll content and chlorophyll concentration increased with reduced light levels, the ratio of chlorophyll a to chlorophyll b of defoliated plants was higher than those of controlled plants, while in latter period, the results were contrary to that of the former period

    （ 4 ）葉綠素含量和濃度總體上都隨光照水平的降低而升高，葉綠素a / b在高光條件下顯著大於低光水平下的植株，葉損失植株的葉綠素a / b值處理初期小於未受損植株，處理後期則大於未受損植株。
  4. 二 、 effects of calcium concentration on the membrane - bound gq protein a subunit in the photoreceptor cell of macrobrachium rosenbergi on light adaptation and dark adaptation. the membrane - bound gq a was extracted from the retina of the macrobrachium rosenbergi with protein extract and was electophoresised by sds - page. the percent of the membrane - bound gq a was analyzed by tanon gis gel image disposal system

    二、鈣離子濃度對光暗適應羅氏沼蝦感光細胞膜結合gq蛋白亞基的影響用蛋白質提取液提取膜結合gq蛋白亞基並sds - page電泳，利用tanongis凝膠圖像處理系統分析其含量。
  5. In our experiment, after light and dark adaptation, the retina of the macrobrachium rosenbergi was respective incubated in high calcium solution, physiological solution and low calcium solution. we studied the effect of calcium concentration on the content and subcellular localization of gq protein a subunit in the photoreceptor cell of macrobrachium rosenbergi on light adaptation and dark adaptation by sds - page technology and imunoelectron microscopy technology. our study results indicated : 一 、 effects of calcium concentration on the soluble gq protein a subunit in the photoreceptor cell of macrobrachium rosenbergi on light adaptation and dark adaptation

    而鈣離子對gq蛋白亞基活性有無影響還未見報道。我們以光適應和暗適應條件下的羅氏沼蝦復眼視網膜為材料，分別用高鈣溶液、生理溶液、低鈣溶液孵育后，通過sds ? page電泳技術及免疫膠體金電鏡技術，研究鈣離子濃度對光暗適應時羅氏沼蝦感光細胞gq蛋白亞基含量的影響及亞基亞細胞定位的影響。
  6. The intensity of a ray of monochromatic light decreases exponentially as the concentration of the absorbing medium increases.

    一束單色光的強度隨著吸收介質的濃度增加而呈指數下降。
  7. By measuring the anthocyanin accumulation of the mutants, it was showed that phytochrome and cryptochromel were involved in the induction process. kt enhanced the accumulation of anthocyanin under blue light and had a concentration effects

    Kt與藍光對花色素昔積累的作用表現為明顯的協同效應，藍光在整個調節反應過程中居於主導地位，而kt對藍光的誘導效應起促進作用。
  8. Some key points are resolved with advanced software design conception and technology, and a nitrogen tetroxide concentration monitor with sound and light alarm is developed

    通過採用先進的軟體設計思想與技術，解決了幾個關鍵問題，成功地研製出了具有聲光報警功能的高性能四氧化二氮毒氣濃度監測儀。
  9. The current interest in melatonin is wintnessed by the growing number of scientific papers directly or indirectly dealing with this molecule, in the last 10 years, the mean number of articles has doubled and reports on new compounds acting at the melatonin receptors abound, although the search for a clear therapeaatic role for these ligands is still under way beside the scientific interest, there is a contemporary, but largely independent, explosion of a free market of various products containing mt, which have been presented at antiage agents protecting against differe kinds of injuries, although this action still lacks a solid scientific foundation. indeed while a number of physiological action of mt are coming to light, the exact role and the the real therapeutic benefit of this compound still remain unclear, both have been the subject of debate. with a lot of potential actions still to be fully demonstrated and with some mechanisms deserving more clarification, in sense, the appellation of the hormone of darkness, attributed to mt beacause of its characteristic concentration / time profile, seems extremely appropriate

    除科學興趣以外，也有暫時的，在很大程度上不可靠的有關各種含有mt的產品開發的探索，如出現的保護多種損傷的抗衰老劑。盡管這些產品的作用仍缺少堅實的科學基礎，事實上當mt的許多生理作用研究清楚后，這種物質的確切作用和真實的治療效果仍不得而知。有許多潛在的作用需要充分論證，有些機理需要進一步區分，在某種意義上說，稱mt為黑暗激素，主要是由於在某一時間的特定濃度分佈似乎更合適。
  10. Adsorption distribution coefficients increase with the increasing of temperature. the concentrations of redox reagents have light effects on adsorption within the studied concentration range

    測定了硝酸溶液中三種價態的鎿在硅膠上吸附的等溫線和表觀吸附熱。
  11. It indicated that not only can spirulina cells grow photoautotrophically and photomixtrotrophically, but also can grow heterotrophically under some specific conditions. light intensity, light quality, temperature, species and concentration of metals, rare earth elements and vitamins, salinity, cell concentration, dissolved oxygen level and magnetic filed etc., all play important roles in photosynthetic performance and cell productivity of spirutina

    認為螺旋藻細胞不但能進行光合自養和混合營養生長，而且在某些特定的環境條件下，還能進行異養生長；光照強度、光質、溫度、金屬元素、稀土元素、鹽度、藻體細胞濃度、溶氧水平、維生素、激素和磁場等環境因素對螺旋藻細胞的光合性能和細胞產率都有顯著影響。
  12. 2. mouse lung vessel endothelial cell was used for examining ha, hb and hpd ' s ic50 concentration under saturated light dose and ic50 light dose in saturated concentration irradiated by copper vapor laser of 510. 6nm and 578. 2nm separately

    應用體外培養的小鼠肺血管內皮細胞系（ 1h11 ）測定在飽和光劑量的條件下，實驗光敏劑對血管內皮細胞的殺傷作用，得出其半數殺傷濃度。
  13. 2. to know the injuring and photobleaching properties of two screened photosensitizer, i. e. hypocrellin a ( ha ) and hypocrellin b ( hb ) using haematoporphyrin derivative ( hpd ) as their control and to measure their ic50 concentration at the saturated light dose and ic50 light dose in saturated concentration

    2以血卟啉衍生物（ hpd ）為對照，測定上述篩選出的光敏劑?竹紅菌素（ ha ， hb ）在飽和光劑量條件下，光敏劑半數殺傷濃度和在飽和光敏劑劑量條件下半數殺傷光劑量，了解ha 、 hb的殺傷效率和漂白特性。
  14. These methods can effectively decrease the pollution concentration of air invironment, however, ultraviolet light must join the process, the purity effect is not good at being used indoors

    此方法雖然能有效降低環境中污染性氣體的濃度，但必須有紫外光參與，否則凈化效果不佳，應用於室內空氣凈化受到較大限制。
  15. When the amt concentration was below 3phr ( 3g amt / 100g epoxy resin ), the cte values of composites decreased from 0 to 20 % of that of pure epoxy, however, the light transmittancies in near ir region of composites were more than 80 % of that of the pristine epoxy, indicating that epoxy / amt exfoliated nanocomposites could be used as packaging materials for optoelectronic devices

    對剝離型納米復合材料的熱膨脹系數進行了研究，隨著粘土含量的增加體系熱膨脹系數顯著下降，且仍保持較好的光學透明性。表明粘土納米復合是一種很好的制備高透光率和低膨脹系數的光電器件包裝用環氧樹脂基復合材料的方法。
  16. In the third chapter, the influence of current density, solution concentration, erosion time and aging in ambient air on the pl spectra of ps suggests that peak would blue shift with current density increasing, and with erosion time and aging time prolonging ; with the increasing of solution concentration, peaks would red shift when solution concentration less than 1 : 1 but blue shift when solution concentration greater than 1 : 1. above phenomena can be explained by quantum confinement and light center model, but do not deny the action of si - h bonding and defect on the surface in the process of photoluminescence. at present, radiation mechanism is still one of the primary problems in the study of ps

    在第z三章中；通過對比，分析了電流密度、陽極化時間、溶液濃度以及自i然氧化時間對多孔硅光致發光光譜的影響，認為在一定的范圍內，多i孔硅的發光峰位會隨電流密度的增大而藍移，要獲得較強的發光，需z要選擇合適的電流密度；隨著腐蝕時間的延長，多孔硅的發光峰位會i發生藍移；當f酸的濃度較小q ： 1 ）時，峰位隨濃度的增大表現為向i低能移動；而當f酸的濃度較大河山時，峰位隨濃度的增大則表現z為移向高能；多孔硅在空氣中自然氧化；其發光峰位發生藍移，而強i度隨放置時間的延長而降低。
  17. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  18. By calculated judd - ofelt parameters of the npre - 1 glass and luminescence dynamics equation, the author has get the changing curve about light intensity near 1540nm with the increase of er doped concentration. it was observed that the light intensity is the strongest when er doped concentration is 20mol % and the concentration - quenching phenomenon takes place after the concentration is bigger than 20mol %

    5 ）通過建立發光動力學方程，利用j - o計算得到的參數，得出npre - 1樣品1540nm處發光強度隨er3 +離子摻雜濃度的變化規律，看到er3 +離子摻雜mol濃度為20 %時發光最強，大於這個濃度后就發生了濃度猝滅效應。
  19. Because of our concentration on the research and the development of the standardized light imaging screening technologies, we have been able to continuously demonstrate our great achievements both in the sales and on the markets among our peers

    專注于標準件光學篩選機的研究與發展，並不斷地在標準業者銷售與市場佔有方面屢創佳績。
  20. Under that condition the strain can produce the most concentration of the bioactive compounds. the physical and chemical properties of the actibacterial compounds have been studied, the results showed the bioactive substance has heat stable, acidity and weakly alkali stable. it can be dissolved in acid water, chloroform solvent, can not be dissolved in ethyl acetate, petroleum ether, alkali water. the result of thinlayer chromatography showed the bioactive compounds can give off blue and green fluorescence in the uv light. the paper chromatography demonstrate the bioactive substance may be a new construct compounds

    研究表明，該活性物質具有較強的熱穩定性， ph 9的條件下能穩定存在，但ph 12的強堿性條件下活性物質的抗菌活性幾近喪失；活性物質易溶於氯仿、酸性水、不溶於乙酸乙酯、石油醚、堿性水；薄層層析顯示活性物質在紫外光下能發藍綠色熒光等特點；由捷克八溶劑系統紙層析鑒定該抗菌活性物質不屬於四大類抗生素，可能為一新的抗菌活性物質。
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