位阻效應 的英文怎麼說

中文拼音 [wèizǔxiàoyīng]
位阻效應 英文
steric effects
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 效應 : [物理學] effect; action; influence
  1. A noncompetitive antagonist prevents the agonist from producing any effect at a given receptor site.

    非競爭性拮抗劑可阻止激動劑在特定受體部位產生任何效應。
  2. On this foundation the article inducts in detail the method which is based on the relative settlement of calculating unit area end support ( qb ) force at the same time considering the feature of pedestal pile ' s " arch effect " the article introduces conception of pile effective length and finally obtain t he formula of calculating man - made pipe with bulb - shaped axial carrying capacity. the article uses marc program to calculate and analyze foundation soil ' s stress and displacement and gets the change curve chart and the proportion that is shared by king - pipe side soil friction resistance and pipe end counterforce respectively. the article inducts the structure of pedestal in detail on the basis of generalizing pedestal application cases of many countries

    在此基礎上論文詳細歸納了以相對沉降為依據確定單位面積端承力q _ b的計算方法，並考慮擴底樁的「拱效應」特點引入了有效樁長的概念，最後結合公路規范推出了比較實用的人工挖孔擴底樁軸向承載力計算公式。論文運用了marc程序對地基土的應力和位移進行了有限元數值計算分析，得到了地基土的應力和位移場的變化曲線和在加載過程中樁側土摩阻力和樁端反力各自所承擔的比例；本文還在總結各國挖孔擴底樁應用情況的基礎上就擴底樁的構造進行了詳細的歸納。
  3. As a result, the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created. damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor. the formulas of fluctuating current and damping coefficient are deduced theoretically, and the calculated results are consistent with the experimental results

    通過分析發現電磁阻尼器線圈內由於轉子渦動時變化的磁場而產生的波動電流與轉子位移間的相位差是產生阻尼的主要原因，推導了波動電流、阻尼系數的計算公式，並通過實驗展示了被動式電磁阻尼器的阻尼效應。
  4. Syntheses of ? ? diimine and 2 - aminopyridine transiting metal complexes bearing 2, 6 - unsym - substituents on the aryl, and investigation on the steric and electronic effects of the unsym - subatituents on the catalytic property

    以2 ， 6位不同基團取代的苯胺與相應的二酮反應合成系列的? ?二亞胺和吡啶胺基過渡金屬配合物。主要考察芳環2 ， 6位基團立體位阻對催化性能的影響，同時也考慮基團的推拉電子效應。
  5. The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell

    對磺化膜的研究分析表明：膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量，且接枝苯乙烯相互間的位阻效應對膜性能影響很大；膜的性能可與nafion膜相比較；質子在膜中的傳導遵循「似液體」質子傳導機理；電滲析與擴散作用使膜保持水平衡。
  6. System imitation analysis in the time domain indicates that the amplitude and peak of displacement at the joint between cable and mast are both reduced, and the fatigue life of guyed mast is increased. adjusting the location of mr damper can efficiently reduce the displacement on the top of guyed mast induced by wind

    模擬分析表明可以有效地減小桅桿結構纖繩與桿身連接處的位移響應的幅值與峰值，能提高結構的疲勞壽命，通過調節mr阻尼器的作用位置可以改善對桅桿頂部位移響應的控制效果。
  7. Dense of structure and development of final properties were benefited from retardation of hydration. in contrast, cement hydration process was controlled better by polycarboxylate superplasticizer than the other three superplasticizers owing to its stereoscopic action. and its adaptability to cement was better, by which the cement particles were

    相比之下，聚羧酸鹽高效減水劑由於其良好的空間位阻效應，能夠使水泥顆粒呈完全分散狀態，與其他三種高效減水劑相比可有效控制水泥水化歷程，與水泥適應性較好。
  8. The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material

    本文的主要工作和結論如下：在人工氣候室內，根據不同覆冰絕緣子正、負極性下的閃絡試驗結果，得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓；正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應；覆冰較少時，合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法，對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明，直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低，且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。
  9. Pmosfets and two 16 - bits shift registers were used as the impedance converting and address selection of the elements respectively. the thermal insulation layer was a polyimide film of five micrometers an

    用pmos場效應管作熱釋電元件的阻抗轉換，用雙16位移位寄存器作敏感元件信號讀出的選址。
  10. And based on these findings, we further study the dependence of nuclear stopping on system size, initial n / z, sp and the medium correction of two - body cross sections. it ' s found that the effect of initial n / z ratio and isospin sp on stopping is weak, and the excitation function of stopping depends on the form of medium correction of two - body cross sections and the equation of state of nuclear matter strongly

    在此基礎上我們研究了核阻止本領對系統大小、初始核n / z 、平均場中對稱勢以及兩體散射截面介質修正等的依賴情況，研究結果表明它受初始核n / z比以及對稱勢的影響很弱，而受碰撞截面介質修正的同位旋依賴效應及核態方程影響明顯。
  11. Mechanism of glutamate - induced inhibition of pulmonary surfactant lipid synthesis ? mda receptor ( nmdar ) antagonist mk - 801 could reverse glutamate - induced inhibition of [ 3h ] - choline incorporation in lung explants ; ? he expression of nmdar1 subtype existed in alveolar type ii epithelial cells ; ? he effect of glu on pc synthesis required l - arginine in cultured lung explants, nos activity and no production were increased significantly in lung explants with glu treatment ; and mk - 801 and nos inhibitor l - nna could block the increase of nos activity and no production induced by glu ; l - nna also could reverse the inhibition of [ 3h ] - choline incorporation induced by glu ; ( 4 ) mda content increased and sod level decreased in cultured lung explants of glu treament groups, mk - 801 and l - nna could reverse these effects ; ( 3 ) mk - 801, l - nna could block the release of ldh induced by glu

    谷氨酸對肺表面活性物質脂質合成抑制的機制研究nmda受體拮抗劑mk - 801能逆轉glu所致肺組織[ ~ 3h ] -膽堿摻入減少的效應；肺泡上皮細胞有nmda受體nmdar1亞單位的表達； glu對ps脂質合成的影響依賴l -精氨酸的存在， glu可使肺組織勻漿中nos活性、 no合成量升高； mk - 801 、 nos的抑制劑l - nna均可阻斷glu所致的這些效應； l - nna可逆轉glu所致肺組織[ ~ 3h ] -膽堿摻入減少的效應； glu可使肺組織勻漿中mda碩士學位論文中文摘要含量增高、 sod水平下降。 mk七0 、 l nna能阻斷q所致的這些效應； mk80 、 l nna還能阻斷gill誘導的ldh釋放增多的效應。
  12. Many opo implementations are limited by problems with conventional birefiingent phase - matched techniques in available materials, such as poynting - vector walk - off, low effective nonlinear coefficient, and inconvenient phase - matching temperature and angles

    常規雙折射位相匹配技術的opo有許多缺點，比如光束走離效應、非線性轉換效率較低、位相匹配溫度及匹配角的限制，阻礙了opo的發展。
  13. The effect of initial static load on the instantaneous response makes the amplitude of vibration of horizontal and vertical displacement bigger than that without the effect

    初始靜力效應對結構瞬態響應的影響與剛度、質量、阻尼等因素有關，剛度越小，質量、阻尼越大時，初始靜力荷載效應對結構最大位移影響越小。
  14. Poor thermal stability as a bottleneck has limited the development of liquid crystal photo - alignment technique. the intrinsic reason is that the photosensitive polymer has large space resistance and decreases the reaction degree of the directional photo - polymerization. the effective solution is focused in the increase of orientational order of photo - alignment film

    光控取向技術瓶頸問題是穩定性差，其根本原因是光敏高分子空間位阻太大，定向交聯的反應度太低，有效解決方法應是降低位阻，提高定向交聯度和取向膜分子鏈段的有序度。
  15. Based on the formula which is used to compute the lateral resistance of single pile deduced by wang qitong, a formula is setup whose precondition is that the pile and the lateral soil directly around the pile deform in - phase. on the basis of that the contact stress of the foundation is equal, a formula that can be used to conform the stress - ratio of the composite ground is set up, on the same time, the principles of the deformation harmony of the soil and the piles in the composite ground are also discussed. combining with results of this test, a formula which can calculate the bearing capacity that considering the effect of group piles of the composite ground is also deduced

    視攪拌樁樁體為均質彈性介質，推導了復合地基中單樁有效樁長的理論計算公式；根據王啟銅柔性樁樁側摩阻力計算公式，以樁側土與樁體協調位移為前提推導了柔性樁樁側摩阻力的計算公式；以基底接觸應力均勻分佈，樁體、樁間土均質為前提，討論了樁，土協同工作原理，從而得出復合地基樁、土荷載變形特性，以及樁、土應力比計算公式；結合本次試驗，通過計算加載時樁體與土體的荷載分擔情況以及在極限狀態下樁土承載力發揮值，提出考慮群樁效應的攪拌樁復合地基承載力計算公式。
  16. The resonance network is connected to the gate, then the output and input matching network is designed to satisfy the oscillation criteria. then harmonic balance method is used to analysize and optimize the output power and phase noise. to minimize the load pulling effect a buffer amplifier is designed to isolate the oscillator and the load

    本文在場效應管fet柵極上加上諧振網路（諧振網路是通過cst模擬得到的，它是串聯反饋迴路，介質工作在te01模，對于其後的fet ，它又相當於一個帶阻濾波器） ，然後設計輸入輸出匹配電路，使電路結構滿足起振條件，之後繼續用諧波平衡法模擬和優化，使振蕩器輸出功率合適，相位噪聲很低。
  17. This paper uses of the actual mechanics form, cantilever bending stiffness is adopted in the mega structure, however shearing stiffness in the sub structure. based on the complex mode theory, this paper gains the expression of dynamical response of the system based the model of municipal no. l building of tokyo city and analyses the affection of the main parameters ( stiffness and damping ) on the two configurations ( sustaining type and hang type ). the results indicate that the rational stiffness of the sub structure can control the deformation of the mega structure perfectly, but the acceleration of the sub structure increases at the same time

    本文採用了更接近實際的力學模型，主結構採用彎曲剛度，子結構採用剪切剛度，利用隨機振動復模態理論，推導了巨型框架減振結構的動力響應表達式，並以日本東京市政一號樓為基本模型，討論了巨型框架減振結構兩種結構形式（座承式和懸掛式）的主要參數（剛度和阻尼）對減振效果的影響，結果表明：與普通巨型框架結構相比，減振結構通過合理選擇子結構剛度，可以較好的控制主結構在順風向脈動風作用下的位移響應，從而提高結構的安全性，但與此同時，子結構自身的加速度響應也有了一定程度的提高。
  18. To make clear the hypothesis, a middle cerebral artery occlusion ( mcao ) and hypoxia and glucose - deprivation ( hgd ) ischemic models were used in in vivo and in vitro study, respectively. we first studied the cellular localization of kvl. 2 and the co - localization of kvl. 2 protein and vegf receptors flk - 1 and flt - 1, observed the effect of mcao on kvl. 2 expression and phosphrylation in the rat brain in vivo, then investigated the effect of vegf on ischemia / hypoxia cell damage and tyrosine phosphorylation of kvl. 2 in sh - sy5y cells. finally, in order to further elucidate the relationship between vegf ' s neuroprotection and its regulation on kvl. 2 phosphorylation, we used a specific antisense oligodeoxynucleotide ( odn ) to knockdown the expression of endogenous vegf to observe its role in ischemia / hypoxia cell damage and regulation of kvl. 2 phosphorylation

    為了驗證上述假設，本文分別在整體和離體水平，採用大腦中動脈缺血（ middlecerebralarteryocclusion ， mcao ）和體外氧?糖剝奪（ hypoxiaandglucose - deprivation ， hgd ）缺血模型，首先了解了kv1 . 2蛋白的細胞定位及與vegf受體flk - 1和flt - 1的共存情況，觀察了整體mcao后缺血再灌不同時間大鼠腦內kv1 . 2蛋白的磷酸化水平變化，然後通過外源性給予vegf蛋白，在sh - sy5y細胞株上觀察其對缺血細胞存活率及kv1 . 2蛋白磷酸化水平的影響，最後利用vegf反義脫氧寡核苷酸（ oligodeoxynucleotide ， odn ）特異阻斷內源性vegf蛋白的表達，觀察內源性vegf蛋白在缺血細胞損傷及調節kv1 . 2蛋白磷酸化中的作用，以進一步明確vegf缺血保護效應與其調節kv1 . 2蛋白磷酸化之間的關系。
  19. Via researches symans and sadek pointed out that for flexible structures ( structures with periods beyond 1. 5s ) such a semiactive control system can be effective in reducing both the relative displacement and the absolute acceleration, whereas for rigid structures ( structures with periods below 1. 5s ) it is doubtful

    Symans和sadek等人通過研究指出，對于柔性結構（周期在1 . 5s以上）變阻尼控制可以同時減小結構的位移反應和加速度反應；相反對于剛性結構（周期在1 ss以下）其效果如何則是值得懷疑的。
  20. In chapter 3, a lot of researches about the dynamic imaging for the brain hematoma based on a 2 - d circular model and 3 - d sphere model were studied. the effect on the brain surface potentials ( bsps ) due to the change of hematoma within brain in a 3 - d sphere model was discussed here and the results were very valuable. then some researches about the effect on the bsps due the existence of skull were studied as well as

    第三章首先分別在二維圓形場域、三維球形模型上對顱內血腫動態成家方法進行了大量的模擬計算，研究了顱內血腫（水腫）體積、位置的變化對邊界電位的影響及其規律；然後研究了顱骨存在對邊界電位的影響；最後還研究了電阻抗成像中的三維效應。
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