極微分子 的英文怎麼說
中文拼音 [jíwéifēnzi]
極微分子
英文
indivisible-
Abstract : the paper interprets alternant polarization phenomen on of even alternant hydrocarbons by discussing charge density on every position of even alternate when it is polarized using perturbational molecular orbitals ( pmo )
文摘:本文用微擾分子軌道法（ pmo ）討論了偶交替烴被極化時各位置上的電荷密度，解釋了偶交替烴電荷的交替極化現象。With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。However, in our nation, the research on gan - based microelectronic devices is in the early stage, and a great deal of vestigation is still needed to perform on separative processes of gan devices. due to the lack of algan / gan heterojunction materials in the country, a few researches on algan / gan were made, and the investigation on schottky rectifiers is much less
在國內， gan基微電子器件的研究剛開始起步，制備gan分立器件的工藝尚處于探索研究階段，特別是受algan gan二維電子氣材料來源的限制，國內algan gan基的場效應晶體管的研究開展得較少，關于肖特基整流二極體的研究更少。We used this water - soluble cationic polyelectrolyte pei as a soft cushion for biomimetic membranes in this chapter, and studied the microstructure of polymer - cushioned pure binary and trinary mixed lb and ls films of dimyristoyl phosphatidyicholine ( dmpc ). cholesterol ( chol ) and sphingomylin ( sph ) ( that is to say study the influence of pei cushion on the microstructure of the monolayers ) deposited from looppm pei water solution subphase by - a isotherms and tapping mode atomic force microscopy
在本章中我們用這種極易溶於水的陽離子型聚合物pei為一軟墊，研究以此軟墊為基底的不同生物分子和它們不同種二元及三元混合單分子膜體系在含pei亞相上的相結構情況，初步的討論了它們以雲母為基底的is膜和lb膜的微結構或者說是該軟墊對單分子膜微結構的影響。Al. first applies the color - dipole approach to drell - yan process, which says that in the target rest frame the drell - yan process can be viewed as bremsstrahlung. rather than parton annihilation. according to factorization theorem, the drell - yan cross section can be expressed in terms of the same dipole cross section that appears in deep inelastic scattering
雖然高能反應的微分截面是洛侖茲不變的，但其部分子解釋卻是與坐標系有關的，最近， b . z . kopeliovich等提出靶靜止系中drell - yan過程的色偶極模型，他們認為，在靶靜止系高能碰撞的drell - yan過程是一韌致輻射過程而不是正反夸克對的湮滅。In the second chapter, the nonlinear optical properties are described from both macroscopic and microscopic views, at the same time, giving the definitions of the linear and nonlinear polarizabilities. then, the explicit expressions of the linear and nonlinear polarizabilities are obtained by using quantum mechanical perturbation theory and density matrix formalism, respectively
第二章非線性光學性質，首先分別從宏觀和微觀兩個角度討論了極化強度和電偶極矩與外加光電場強度之間的關系，同時給出了線性極化率和非線性超極化率的定義，然後分別運用含時微擾理論和密度矩陣理論求解了分子體系的線性極化率和非線性超極化率。Therefore, the wave is liable to be taken in by human body ensuing the emergence of resonance effect, which is able to activate cellular organization and promote metabolism. meanwhile, the magnetic therapy can effectively stimulate the circulation of the blood and cause the muscles and joints to relax through specific points. combining two unique functions together, the functional textile could take effect in evidence by improving human microcirculation efficiently, accelerate oxygen supply,
Nb素加磁功能產品，其中nb素所輻射的能量波正發與人體細胞中水分子律動頻率相同，極易被吸收並產生「共振效應「 ，從而活化細胞組織，促進新陳代謝，而磁療能通過穴位達到舒筋活絡的作用，二者科學的相迭加，所以效果更明顯，可充分改善人體微循環，加速氧氣的供給，提高人體細胞的再生能力，對高血壓肢體麻木關節痛肩頸痛腰肌勞損腰背酸痛等有很好的療效。Direct damage on supf trna gene can be neglected because half - life of mnng is 1. 1 hour and the interval between treatment and transfection was as long as 12 - 24 hours. therefore the mutagenesis is not lesion directed
20m的mnng經洗滌后的極微量殘留經過10 ? 20多個半衰期的降解后，己不足攻擊轉人的qdna分子，因此這種突變顯然是發生在mnng直接攻擊部位以外的正常堿基上。The study of the effect of the momentun distribution of target nucleons on the scdw calculation is performed, which shows that the larger nucleon momentum compenents affect the double differential cross sections at backward and forward angles, while smaller nucleon momentum compenents affect the cross sections near the qes angle
本文還分析了核子動量分佈對scdw模型雙微分截面計算的影響，發現大動量的核子成分的增加會導致截面計算值在大角度區域和極小角度區域的增大；小動量核子成分的減小會導致截面計算值在準彈性散射角附近的減小。I used acrylamide ( acr ) and ki to probe the micro - environments of trp residues in the g6pd molecule to show that the trp residues fluorescence of g6pd were quenched by the two quenching reagents, 100 % and 78 % was quenched by acr and ki respectively. i deduced that some trp residues of g6pd were located in the inner core and the others located in the polarity surface
用常見的熒光淬滅劑丙烯酰胺和ki研究g6pd分子中trp殘基的微環境，發現它們對分子中t印殘基的熒光均有淬滅作用，丙烯酸胺能淬滅100 %的熒光， kl能淬滅78 %的熒光，表明分子中小部分飾殘基埋藏在分子內部，大部分t印殘基處于分子表面的極性環境中。Electrorheological fluids ( er fluids ) is a composite suspension of polarizable solid particles with a radium of u m dispersed in an unpolarizable continuous medium
電流變體是由粒徑為微米或亞微米級的易極化粒子分散於低介電系數的液體絕緣介質中形成的復合懸浮體。The recombination gene micyoinjected is 5nl dna ( about 106 - 107 ) into everyone oocytes or cytoplasm of grass carp. there were 32197 oocytes of 12 series via micyoinjection and achived 12945 fries in 2000 year, by hatching and raising. genomic dna was extracted from grass carp who were transformated in 1120 grass carp presented postive reaction by blood
實驗通過將hu - - ifn基因重組分子採用顯微注射法將這種重組基因轉化草魚1 - 2細胞期的受精卵，即以narashige顯微注射儀，將5nldna （約10 ~ 6 10 ~ 7分子）直接注射到選擇好的受精卵核的動物極上。When the separation of the molecules is large, as in a gas, the force is extremely small and attractive.
分子間的距離較大時，如在氣體中，分子間的作用力極為微小，而且是引力。One state resembles setting a hungry man down to a single dish, on which he may concentrate his entire appetite and do it justice ; the other, introducing him to a table laid out by french cooks : he can perhaps extract as much enjoyment from the whole ; but each part is a mere atom in his regard and remembrance
一種情況像是把一個饑餓的人，安放在僅僅一盤菜前面，他可以精神專注地大嚼一頓，毫不怠慢它。另一種情況，是把他領到法國廚子擺下的一桌筵席上，他也可能從這整桌菜肴中同樣享用了一番，但是各盆菜肴在他心目中記憶里卻僅僅是極微小的分子而已。 」There are much complicated and exquisite physical and chemical processes when the oil and the air been mixed. for some theories of the combustion are not clear and the differential eguations are so complicated, it is very difficlut to get the accurate flow field distribution. so it limits the combustion theory to design conb ustion equipment
由於對某些燃料的燃燒過程機理至今尚不完全清楚，並且描述這一現象數學模型的控制微分方程很復雜，所以很難用解析方法求得等離子點火器燃燒流場的精確分佈，這樣就極大的限制了人們應用燃燒理論指導這一燃燒設備的設計研究。The microcrystalline was same to the direction of electric field. the microcrystalline orientation of the film that was obtained by melting pvdf congealing in the effect of electric field changed along electric field obviously. comparing with the film congealing without electric field their crystalline plate become thick
發現pvdf纖維在電場作用下微觀結構變化較大，極化后微晶取向發生較大變化，極化以後微晶變化為沿電場方向取向的厚片狀，熔融態的pvdf在電場作用下凝固時變化更明顯，與不加電場直接凝固的pvdf膜相比，在電場作用下幾乎所有的分子鏈都沿電場方向取向所以出現有序的片晶結構，而且結構緻密。Ag + and fe2 + caused the fluorescence of trp residues in g6pd quenched ; mg2 + and edta made fluorescence intensity of g6pd increased, this indicates that they caused trp residues wrapped and came to the inner core and located in the hydrophobic area ; while zn2 + or mn2 + made fluorescence intensity of g6pd decreased, this indicates that they made the conformation of g6pd relaxed and chromophores exposed to polarity environments. in native condition and in the far circular dichroic ( cd ) region, g6pd exhibited two characteristic negative band centered at 208nm and 222nm respectively, thus it is estimated to contain about 41. 2 % a - helix, 20. 6 % - pleated sheet and 38. 2 % random coil and turn
Ag ~ +和fe ~ （ 2 + ）引起色氨酸（ trp ）殘基的熒光淬滅； mg ~ （ 2 + ）和edta均使g6pd的熒光強度增強，說明它們使trp殘基重新包裹在分子內部而處于疏水的微環境中； zn ~ （ 2 + ）和mn ~ （ 2 + ）均使g6pd的熒光強度變小，說明它們使酶分子構象變得疏鬆，原來處在分子內部的發色團暴露在極性環境中。In this paper, the color dipole approach in the target rest frame is presented and the ratio of the drell - yan cross section per nucleon for an 800 gev proton beam incident on a variety of nuclear targets are calculated and the results are compared with fermilab e772 and e866 experimental data. it is shown that without considering the energy loss effect, the calculated results can fit rather well with experimental data
本文介紹了靶靜止系中色偶極模型，用色偶極模型計算了800gev質子與原子核碰撞的drell - yan過程的微分截面比，並與e772和e866實驗結果進行了比較。發現：不考慮能量損失，只計及p - a碰撞中的遮蔽效應，理論結果就與實驗符合的很好。We also consider the lotka - volterra system. we construct the examples of the classes 26, 28, 29 ( under zeeman ' s classification ) in three dimensional lotka - volterra competitive system with two limit cycles and the class 27 with three limit cycles
對于高維的微分動力系統，我們考慮數學生物學領域中最為基本和重要的lotka - volterra系統，分別構造了該系統在zeeman分類下的第26 ， 28 ， 29類具有兩個小擾動極限環和第27類具有三個極限環的例子Flow characteristics of non - polar organic liquids with small molecules in a microchannel
非極性小分子有機液體在微管道中的流量特性分享友人