活性下降 的英文怎麼說

中文拼音 [huóxìngxiàjiàng]
活性下降 英文
activity decline
  • 活 : Ⅰ動詞1 （生存; 有生命） live 2 [書面語]（救活） save （the life of a person）:活人無算 （of a goo...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 活性 : [化學] activity; active; activated活性肥料 active fertilizer; 活性酵母 active dry yeast; 活性粘土...
  1. The acetaldehyde dehydrogenase ( acdh ) and alcohol dehydrogenase ( adh ) of the adhe mutants and parent strain were assayed with a result that the acdh activities of mutants were less than 10 % of the parent strain and the adh activities of mutants are about 10 % of the parent strain

    6個adhe ~ -突變株的乙醛脫氫酶活性均降低為親株的10以下，乙醇脫氫酶活性降低為親株的10左右； 4個ldha ~ -突變株的乳酸脫氫酶活性均降低為親株的7以下。
  2. Second, the activities of protective enzymes i. e. superoxide dismutase ( sod ), peroxidase ( pod ), and ascrobate peroxidase ( apx ) exhibited down - up - down trends when treated with 2 @ and 8 @, and these activities sustained at a relatively high level. this indicated euonymus japonicus " zhuzi " had relatively high adaptability to cold stress

    （ 2 ） 『粗枝』大葉黃楊在零上低溫時，細胞保護酶超氧化物歧化酶（ sod ） 、過氧化物酶（ pod ） 、抗壞血酸過氧化物酶（ apx ）的活性先降低後上升，又下降並維持較高的水平，表明『粗枝』大葉黃楊對低溫脅迫有一定的適應性。
  3. The hemagglutinating activity of amphioxus skin mucus was decreased after heating at 60 for 30 min, and was almost lost upon heating at 100 for 30 min. the hemagglutinating activity of the skin mucus remained stable in the ph range from 6 to 10, but it was inactivated at ph above 10 or below 6. the hemagglutinating activity in the skin mucus is inhibited by d - galactose, which is same with the hemagglut inating activity of the humoral fluids of amphioxus

    在60保溫30分鐘后，凝集素的凝集活性下降，在100保溫30分鐘后，凝集素凝集活性幾乎完全消失；在ph6 - 10的范圍內，凝集素的凝集活性穩定， ph大於10小於6的條件下，凝集素的凝集活性消失；文昌魚體表粘液中的凝集素受d -半乳糖苷的抑制。
  4. To verify the integration of st901 gene into transgenic plants genome, the stable transgenic plants were analyzed by pcr and southern blotting. the aberrant phenotypes were observed in pollens and anthers of the transgenic plants. most of pollen grains in the transgenic plant were distorted, shrunken, invagination and not stained with the solution of acetocarmine

    通過對轉基因植株花粉、花藥形態的觀察和花粉活力的測定，表明st901啟動子驅動的st901基因在轉基因植株中的表達造成花粉嚴重敗育，花粉粒皺縮，扁癟、塌陷，缺乏內容物；轉反向表達載體的馬鈴薯花粉育性僅為對照的5 . 2 ，育性下降94 . 8 。
  5. Extraradical hyphal growth was inhibited at high p levels, resulting in decreased p uptake by am fungi

    高磷造成am真菌生長和代謝活性下降，是導致菌根效應下降的原因之一。
  6. Four years of operation saw slow decline of activity of the catalysts and remarkable savings of sulfiding agent

    裝置近4年的應用結果表明，催化劑活性下降緩慢，節約了大量的硫化劑，取得了較好的效果。
  7. With the increase of exposure time, the antioxidative ability of spirodela polyhiza dereased, sod and ap activities were induced, and asa content of treated plants were always lower than those of control plants, but the proline ( pro ) contents in treated plants increased. these factors would break the balance of the metabolism of ros and the active oxygen accumulation in leafy thallus of spirodela polyhiza could be the result, the membrane lipid peroxidation was accelerated ( mda content increased ), ultra - microstructure of chloroplast was damaged, photosynthetic capacity dereased, biomass ( dry weight ) reduced

    實驗研究結果如下： （ 1 ） uv - b輻射處理后前2天，紫萍超氧化物歧化酶（ sod ）和抗壞血酸過氧化物酶（ ap ）等抗氧化酶系統有不同程度的升高，隨著uv - b處理時間的延長，紫萍體內抗氧化保護系統能力下降， sod和ap的活性下降，並且非酶類抗氧化物質抗壞血酸（ asa ）含量一直低於對照組，而脯氨酸（ pro ）的含量則一直在升高。
  8. Anthropogenic activities ( e. g. development, over - grazing, timber harvest ) can disrupt the structural integrity of oasis - desert landscapes and is expected to impede diversity communities across the landscape and make it fragmented. with human dimension and activities enhancing, the patchiness grain, edge density and landscape contrast become large, landscape diversity and patch fractal dimension decreased

    隨著人類活動的增強，斑塊粒度、邊緣密度、分散度、對比度變大，而景觀多樣性下降，斑塊分維數變小，人類生產經營活動導致了綠洲-荒漠景觀破碎化，綠洲和荒漠生態系統界面上的突變性、對比度和異質性增強。
  9. In xenopus embryonic extracts camp concentration and pka activity also oscillations accompany with the cell cycle, low in mitosis and increased during m / g1 transition, keep high until next mitosis, and the mechanism concern with the cdc25 phosphorylation state and cyclin b concentration. mouse fertilized egg is the most simple and natural model for cell cycle that near to human, but little is know about pka on mpf also pka on mitosis

    通過對非洲爪贍胚胎細胞周期的研究發現jka活性也隨細胞周期變化而波動，在m期出現時pka活性下降，而m間期轉換時pka活性達最大值，一直維持高值直到下一個m期出現，其對mpf活性調節與cdc25磷酸化狀態及周期素b表達有關。
  10. Mass spectrometry of synthetic hw - ma and rgd - hw are in full agreement with those speculated theoretically, which proves the success of peptide synthesis and refold. on isolated mouse phrenic nerve - diaphragm preparations, hw - ma can block the neuromuscular transmission in 35 minutes or so ( l 10 - 5 g / ml ), its biological activity shows 73 % decrease comparing with biological activity of native hwtx - i. it proves t hat the protein engineering of synthetic chimera hwtx - i has gained success to some extent, although it did not achieve our expectations. thus it proved that hwtx - i can be using as natural scaffold for protein engineering. and also emphasized the importance of " local stereo circumstances " of activity site when the foreign activity site was transferred into a natural scaffold

    濃度為1 / 1059 / ml的hw一ma突變體能可逆阻斷小白鼠隔神經書高肌的接頭傳遞，阻斷時一間為35min左右，與天然hwtx一i比較，生物學活性下降3一4倍，說明合成的突變體改造獲得了一定的成功，盡管與我們預期的目標有一定的差距，從而證明hwtx一i可以作為蛋白質工程研究的天然分子骨架，同時也強調了往天然分子骨架中轉移外源活性位點時維持活性位點「局部立體環境」的重要性。
  11. Comparing with the y7, the specific growth rate of mutant increased by 22. 7 %, the activities of neutral and acid trehalase droped by 19. 2 % and 6. 7 %, respectively. under the non - optimized condition, the production of trehalose increased by 57. 2 % compared with that of parental strain y7

    與原菌株y7相比較，對數期比生長速率提高22 . 7 ，酸性海藻糖分解酶活性下降19 . 2 ，中性海藻糖分解酶活性下降26 . 7 ，胞內海藻糖含量提高了57 . 2 。
  12. The activities of sod in the roots of brassica chinensis l treated with ph4. 5 or ph 3. 5 solutions increased faster than those treated with ph5. 6. but with increasing in concentrations of zn or cd, the activities of sod decreased. the activities of sod in the leaves of brassica chinensis l treated with ph4. 5 had changed only a little, but had changed more when treated with ph3. 5

    Ar1 ， ar2的酸雨下，小白菜根系sod比活性在低濃度zn 、 cd條件下，比ar0 （ ph5 . 6 ）的酸雨下高，但隨著zn 、 cd濃度的增加， sod比活性下降； ar1的酸雨下，小白菜葉中sod比活性與ar0的酸雨下相比變化不大，而ar2的酸雨下， sod比活性明顯比ar0的酸雨下小。
  13. In winter, because the water temperature descend and the activity of microbial reduce

    冬季由於進水溫度的下降，微生物活性的降低，處理效果明顯下降。
  14. If reduced nmda receptor activity prompts schizophrenia ' s symptoms, what then causes this reduction

    如果說nmda受體活性的下降促成了精神分裂的癥狀，那麼又是什麼原因造成了這種活性下降？
  15. The major target of photoinhibition is photosystem ii ( psii ) on which photoinhibition make photosynthetic efficiency decreased, electronic transportation blocked and reaction center protein dl photodamaged

    已有研究表明ps是主要靶點，光抑制時表現為： ps光合效率下降、 ps電子傳遞鏈活性下降及核心蛋白被氧化而破壞。
  16. Sds - page analysis and hemagglutination assays showed the composition of proteins, especially the prominent mannose - binding lectin in cultured rhizomes were comparable to that in wild rhizomes of polygonatum cyrtonema hua

    四川大學博士學位論文賴氨酸（ lys ）的. nhz修飾導致凝集素的凝血活性和促淋巴細胞有絲分裂活性下降，表明lys的
  17. Expression level in pupa is 32 times higher at 23c - 26c than that at 30c, and decreased by 50 % at 20c, the level of expression was influenced to some extent by the titre of virus used for infection and rearing season

    病毒滴度為ix10丫fu時， rhbsag可獲得最高表達活性，而低於1 10 』 pfu表達活性下降。春季蠶的表達量比秋季高1倍左右。
  18. The sod it was stable up to 85 treatment for two hours, and decrease only 12 % after treated at 90 for 30min. the activities of sod could remain about 85 % after treated at 100 for 10min

    同時， sod樣品在不同溫度處理后活性檢測發現:在85的水浴中處理兩個小時后仍然保持穩定:在90水浴中處理30分鐘后只有1器的sod活性下降，顯示出較高的熱穩定性。
  19. The combustion conditions in a circulating fluidized bed ( cfb ) boiler are much different from a pulverized coal firing ( pf ) boiler. however, this dissertation has confirmed that coal char in cfb boiler will also experience reactivity loss and ordering of turbostratic carbon structure, which have been reported by many researchers whose work were mainly restricted to pf conditions

    本文通過獲得在cfb燃燒條件下熱解和燃燒過程中的焦碳，對其反應性、亂層碳結構、礦物質催化作用和比表面積等進行了系統研究，指出cfb鍋爐和煤粉爐同樣存在焦碳亂層碳結構有序化和焦碳反應性下降（失活）現象，並全面分析了焦碳失活的機理。
  20. Moreover, the sio2 / tio2 composite thin film showed the lowest pl intensity due to a decrease in the recombination rate of photo - generated electrons and holes under uv light irradiation, which further confirmed the film with the highest photocatalytic activity at 700 c. when the calcination temperature was higher than 700 c, the decrease in photocatalytic activity was due to the formation of rutile and the sintering and growth of tio2 crystallites resulting in the decrease of surface area

    同時，此時sio _ 2 / tio _ 2復合薄膜的熒光光譜顯示最低的熒光強度，這表明此時薄膜中的光生電子和空穴的復合速率最低，因而更有利於物質的光催化降解。當熱處理溫度高於700時，武漢理工大學碩士學位論文薄膜的光催化活性下降，這是由於薄膜中晶相二氧化欽的燒結和成長導致樣品的表面積下降以及金紅石相的形成。
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