molecular mass 中文意思是什麼

molecular mass 解釋
分子量
  • molecular : adj. 分子的,由分子形成的,分子內[間]的。adv. -ly
  • mass : n 彌撒；彌撒的儀式[禱告、音樂]；彌撒曲。 a high [solemn] Mass （有燒香、奏樂等的）大彌撒。 a low ...
  1. The amino acid sequences of about 100 kinds of spider toxin have been determined so far. their molecular weights were varied from 3 to 12kd except for black widow spider toxins, which were high molecular mass types. there were plenty of cysteine residues in their sequences

    至今已有近百種蜘蛛神經毒素的一級結構被測定，除黑寡婦蜘蛛毒素為高分子量毒素外，其他蜘蛛神經毒素的分子量在3 - 12kd之間，不同種屬來源的毒素同源性很小，序列中含有較多的半胱氨酸。
  2. The region of the atmosphere below 90 km has a nearly constant mean molecular mass, and is therefore called the homosphere.

    90公里以下大氣區域，具有一個接近恆定的平均分子質量，因此稱為均勻層。
  3. Full - length or truncated cdna was subcloned into prokaryotic expression vector pet30a and expression induced in e. coli bl21 ( de3 ). no squalene synthase polypeptide of expected molecular mass was observed in e. coli containing the putative full - length squalene synthase cdna, however, overexpression in e. coli was achieved by truncating 30 hydrophobic amino acids at the carboxy terminus

    但在含有全長的鯊烯合酶cdna的大腸桿菌中並沒有觀察到預期大小的鯊烯合酶表達，而c末端截短30個疏水氨基酸的鯊烯合酶可在大腸桿菌中過量表達。
  4. A neurotoxic peptide ( named huwentoxin - v ) was purified from the venom of the spider by a combination of ion exchange chromatography and reverse phase hplc. hwtx - v has 35 amino acid residues, with the molecular mass 4111. 4da. the amino acid sequence has been determined as nh2 - ecrwylggcsqdgdcckhlqchsn - yewcvwdgtfs - cooh, which consists of 6 cys, formed three pairs of disulfide bridges

    本文報道從虎紋捕鳥蛛（ selenocoimahuwena ）粗毒中，結合陽離子交換和反相高效液相色譜分離純化出一種昆蟲毒素，命名為虎紋捕鳥蛛毒素- （ huwentoxin - ， hwtx - ） ；其天然突變體（ themutantofhuwentoxin ， mhwtx - ）也同時純化出來。
  5. Thioredoxins, an ubiquitous small proteins with a redox active disulfide bridge in its conserved motif - cp ( g ) pc -, are universally distributed in eucaryote and procaryote and have a molecular mass of approximately 12kda. by its disulfide / dithiol interchange reaction, this protein can transmit the regulatory signals to seleted targets ( enzymes, transcription factors etc ) and plays an important role in many plant physiological processes that includes photosynthesis, dna synthesis, transcription, protein disulfide reduction, protein repair, filamentous phage assembly, cell apoptosis and seeds germinating and so on

    該蛋白質中含有保守的- cp （ g ） pc -氨基酸活性基序，該基序中的兩個半胱氨酸殘基可通過巰基二硫鍵的轉換實現其氧化還原狀態的變化和電子氫的傳遞，對細胞中與氧化還原相關的多種生理過程的調節起重要作用。通過同許多酶類、蛋白類、細胞內活性因子相藕連， trx能對光合作用、 dna復制、基因轉錄、細胞凋亡和生長、噬菌體組裝、蛋白質的還原和修復信號傳導等生理過程產生影響和調節。
  6. Rubber, raw natural - determination of average molecular mass and molecular - mass distribution by size exclusion chromatography

    天然橡膠.用粒度分離色譜法測定平均分子質量和分子質量分佈
  7. In order to investigate the genomic organization of the single - nucleocapid nucleopolyhedrovirus of helicoverpa armigera, the ecori - n fragment located at 54. 8 - 59. 3 kbp of the viral genome was sequenced. the fragment contained 3762 bp helicase gene potentially encoding a protein with a molecular mass of 146 kda

    對棉鈴蟲單核衣殼核多角體病毒（ helicoverpaarmigerdsingle - nucleocapsidnucleopolyhedrovirus ， hasnpv ）基因組中ecori ? n片段進行序列分析，獲得了完整的解螺旋酶基因（ hel ） ，其開放閱讀框大小為3762bp ，編碼一個分子量為146kda的蛋白質。
  8. It shows that the solution viscosity drops and the relative molecular mass reduces with narrow distribution

    結果表明改性栲膠溶液黏度下降，相對分子質量降低且分佈集中。
  9. The results of emsa showed the obvious retardant bands, which suggest that some proteins in nuclei can bind to the specific dna sequence of mbd3 gene after lps treatment. 5. the molecular mass of this dna binding protein was assessed between 43. 0 - 66. 2 kd by south - western blot

    4 .電泳遷移率改變實驗有明顯的滯后帶形成，表明lps刺激后，肝臟組織的細胞核內有轉錄因子與mbd3基因特異的dna序列結合，參與mbd3基因的誘導表達5 . south一westemblot進一步確定此轉錄因子分子量在43 . 0一「 . 2kd之間。
  10. In the forth chapter, the sl threshold pressures for bubbles with different noble gases were measured experimentally. results show that the threshold pressure increases with the decrement of molecular mass for gases inside the bubbles

    氣泡內的惰性氣體不同使氣泡內的絕熱系數和熱擴散系數不同，惰性氣體的原子質量越大，氣體的絕熱系數就越大而擴散系數就越小。
  11. Was released, which was confirmed by molecular mass and amino acid composition analysis. ultraviolet and circular dichroism spectra were used to test the secondary structure of - mt - 3. distinct from other - mt, - mt - 3 showed a negative trough at about 220nm in the cd spectrum, suggesting that an - helix might exist in its secondary structure

    紫外吸收光譜及圓二色性光譜研究重組- mt - 3的結構。 mt - 3的與其餘mt的結構域不同， - mt - 3的圓二色性光譜在220nm左右為負峰，說明- mt - 3可能包含一個-螺旋的二級結構。
  12. The molecular mass of mg7 scfv was measured by western blot. 8

    Wwbloto歧規可溶mg7scfv6樹馭怕吁量n為30kda 。
  13. 200 - 500 surface active agents - detergents - determination of cationic - active matter content - cationic - active matter of low molecular mass between 200 and 500

    表面活性劑.洗滌劑，陽離子活性物含量測定.第2部分:低分子團
  14. 200 - 500 surface active agents. detergents. determination of cationic - active matter content. part 2 : cationic - active matter of low molecular mass between 200 and 500

    表面活性劑.洗滌劑，陽離子活性物含量的測定.第2部分:低分子量
  15. Standard test method for relative molecular mass molecular weight of hydrocarbons by thermoelectric measurement of vapor pressure

    蒸氣壓力熱電測量法測定烴類相對分子質量
  16. Deglycosylation with pngase f resulted in a decrease in apparent molecular mass from 20 kda to 18kda

    目的蛋白徹底脫糖基后，分子量大約為18kd ，與原核表達產物大小相當。
  17. Surface plasmon resonance immunosensor is a relatively new immunoassay technique and has been receiving more and more attention in recent years. however, a major disadvantage of spr for bioanalytical applications is that low concentration or low molecular mass analytes could not be detected directly. therefore, it is a challenging task to develop strategies for improving the detection limit sensitivity of spr. in this paper, authors present a novel strategy for improving the sensitivity of spr immunosensing using streptavidinbiotinylated antibody complex. it is proven that the amplification strategy causes a dramatic improvement of the detection sensitivity. this amplification strategy is based on the construction of a molecular complex between streptavidin and biotin labeled protein. the complex can be formed in a crosslinking network of molecules so that the amplification of response signal will be realized due to the big molecular size of complex

    將鏈霉親和素-生物素系統用於表面等離子體共振免疫傳感的信號放大，實時檢測了人免疫球蛋白g higg的蛋白濃度。發生免疫反應的傳感片和生物素化抗體反應后，傳感片表面的一層生物素分子隨后與鏈霉親和素-生物素化抗體復合物中的鏈霉親和素的活性位點發生親和反應，從而使傳感片表面特異健合的物質質量顯著增加，大大提高了免疫檢測的靈敏度和檢測限。免疫反應經放大后，可檢測0 . 00510g ml濃度區間內的higg 。
  18. Schematic diagram showing the relationship between the zero - point energy and molecular mass for hydrogen, deuterium and hd. ( image courtesy of mit ocw

    示意圖說明氫分子、氘分子、氫氘分子的零點能與分子量之關系（本圖由麻省理工學院開放式課程網頁提供） 。
  19. Abstract : the fraction compositions, group compositions and structure compositions of seve n catalytic stocks were determined by means of vacuum distillation, mass spectrum, element analysis and molecular mass measurement

    文摘:採用減壓蒸餾、質譜分析、元素分析和分子質量測定對遼河原油的7種催化原料油進行了餾分組成、族組成和結構族組成的分析。
  20. Plastics - determination of average molecular mass and molecular mass distribution of polymers using size - exclusion chromatography - high - temperature method

    塑料.用粒度排除色譜法測定平均分子量和分子量分佈.高溫法
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