位阻的 的英文怎麼說
中文拼音 [wèizǔde]
位阻的
英文
sterically hindered-
Because of the interaction of urushiol chains and cus, the transformation temperature tg of hybrid - epu / cus was higher than that of epu. heat stability and solvent resistance were also improved. the interaction and network of urushiol chains were efficiency to inhibit the dimension of cus nanoparticles
漆酚鏈段與cus之間的作用,以及漆酚交聯網路的存在可有效阻止cus顆粒尺寸的增大,但漆酚交聯網路產生的空間位阻也在一定程度上降低了sz 」的擴散。A multi-center fragmentation is governed by steric factors.
多中心斷裂受到位阻因素的控制。Macromolecules cannot approach the ligand owing to steric hindrance of the matrix.
由於載體的立體位阻的關系,大分子化合物不能接觸到配基。It influences the miaow thiazole quinoline to lose slowly that the experiment is drawn the pharmaceutical loses slowly the factor of performance has temperature mainly, density, the membrane time in advance, and design many group ' s simulation systems for different influence of these three factors, is it is it should lose pharmaceutical to lose pharmaceutical slowly one positive pole type, lose performance is it is it form space location hinder after the membrane to absorb to come from mainly slowly slowly to appear to prove, thus isolated the carbon steel base body and corrode the medium
實驗得出影響咪唑啉緩蝕劑緩蝕性能的因素主要有溫度,濃度,預膜時間,並針對這三個因素的不同影響設計了多組模擬體系,驗證出該緩蝕劑是一種陽極型的緩蝕劑,緩蝕性能主要來自於吸附成膜后形成空間位阻,從而隔離了碳鋼基體和腐蝕介質。Just as the kilometer is the unit of length, so the ohm is the practical unit of resistance
正象公里是長度的單位那樣,歐姆就是電阻的實際單位。Choose two nodes on the edge of the structural to compare the results calculating by the finite element program midas, then we can draw a conclusion that these kinds of space truss systems is sensitive to the libration of the dynamic wind loads. to consider this factor is very necessary in the process of design, we will use the pulsant augmentation coefficient to realize it
比較靜力風荷載和動力風荷載作用下的有限元軟體的計算結果,選取結構邊緣部分的兩個節點,對比它們在兩種方法計算下的最大位移的計算結果。經過比較可以看出重量輕、頻率低、阻尼小的柔性建築物對風荷載的橫向振動是很敏感的,在進行工程設計時應該考慮這種因素,並可採用乘以風振系數等相應方法來加以體現。The interactions between particles were discussed based on dlvo and edlvo theories. experiment results show the effect of the ph on the dispersion is due to the repulsion interactions of electrical double layer ; and addition suitable inorganic dispersant or organic macromolecule dispersant results in improvement the stabilization of the dispersion. the main action of the inorganic dispersants is to increase the repulsion interactions of electrical double layer and the main action of organic macromolecule dispersant is to increase hydration shell and steric hindrance
研究表明: ph對顆粒分散的影響主要體現在對顆粒間雙電層靜電排斥力的改變;添加合適分散劑可以改變顆粒在水中的分散性;無機電解質的分散機制主要是增加顆粒表面的雙電層靜電排斥作用能,而高分子分散劑的分散機制主要是增加顆粒的水化膜排斥能和位阻排斥能;復合分散劑的分散效果要優于單一分散劑;提出了用經時損失性來評價分散穩定性。The results show that the internal friction angle of rock has importance affect on the displacement of surrounding rock for deep roadway when in - situ stress and support resistance all are certain
分析結果表明,在地應力和支護阻力一定時,巖石的內摩擦角對深埋巷道圍巖位移的影響最為明顯。In general, a precise resistor is in series with one of the resistors in wheatstone bridge to compensate the zero offset, and the other one is in parallel with another arm of the wheatstone bridge to compensate thermal zero drift. based on this principle, in this paper, a compensation method based on virtual instrument technology has been put forward. actuated by current source, a good calculation method of compensation resistors and their position in the bridge is deduced
本文基於串並聯電阻補償法的原理,提出了一種基於虛擬儀器的誤差補償方案,推導了在恆流源供電下可以精確的計算出補償電阻大小和補償位置的演算法,並且在虛擬儀器軟體平臺labview上完成了數據採集、處理、顯示等軟體的設計,經過實驗的驗證,對傳感器的零點溫度漂移補償取得較好的效果,而對靈敏度溫度漂移的工藝補償亦有一定的效果。In order to make clear the regulation of the combustion and the heat - transport process of fire - retardant treated wood, the combustion of untreated, fire - retardant solution soaked, and fire - proof paint coated white pine ( pinus bungeana ) and northeast china ash ( fraxinus mandshurica ) wood as well as the rising process of temperature at different sites in wood were measured in this study, taking a multi - function fire - proof experiment oven to simulate the typical process of fire
摘要為了弄清楚阻燃處理木材的燃燒及其熱傳導規律,該研究採用多功能耐火實驗爐模擬典型火災的發生過程,測定了未處理、阻燃劑水溶液浸漬處理、塗刷防火塗料白皮松和水曲柳木材的燃燒及木材內不同位置的升溫過程。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。Added information about the units seconds in which the blocked process threshold is set
添加了有關設置阻塞的進程閾值的單位(秒)的信息。" electronic 1c chip drawing system " provides many functions such as " modify the position of the component ' s diagram " " modify the color of the component ' s diagram " " magnify and minify the component ' s diagram without distortion " " change the type of drawing line " " edit some physical properties of the component " " copy and paste diagram of one component " " delete one or more component diagrams " " move more than one components " positions " " change the z _ order of the diagram, set it to back or bring it to front " " save the drawing of the electronic components to one file and the file extension name is *. brd " " print the drawing ". users can finish all these functions easily by clicking and dragging the mouse
電路板元器件繪制系統主要完成了使用鼠標拖拽、鼠標點按的方式繪制電路板上各種常見的元器件圖形;編輯電路板上元器件圖形的位置;編輯元器件圖形的顏色;不失真的對器件圖形進行放大和縮小;編輯元器件圖形的線型;編輯電路板上各個器件的物理屬性(比如電阻的阻值大小、電容的容量大小、額定電壓等) ;復制已經繪制出的電路板上的器件;粘貼剪貼板上的器件;刪除單個或多個已經繪制出的器件圖形;同時改變多個器件圖形的位置;改變繪制區內各個元器件的zorder順序,也就是可以將層疊在一起的圖形置前或置后;把繪制的電路板器件圖保存到指定文件中;能打開、查看和修改保存的電路板器件圖;列印電路板器件圖。By using sterically hindered, electron - rich alkylphosphines and n - heterocyclic carbenes ( nhc ), this process has encompassed a broad range of substrates including ketones, aldehydes, esters, amides, malonates, nitrocompounds, nitriles and sulfones
隨著大位阻、富電子烷基膦和氮雜環卡賓( nhc )為配體的催化體系的出現,該類反應的底物已從酮擴展到醛、酯、酰胺以及含酸性氫的化合物如丙二酸酯、硝基化合物、腈、碸等。For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions
針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機,本文提出一種基於六個離散位置信號的自同步svpwm (電壓空間矢量法)控制方法,用以削弱電磁轉矩脈動,分析了實現這種方法的主要控制環節,包括起動時電壓空間矢量的初始定位,阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。With linear time - invariant modeling of phase noise and definition of “ effective resistor ”, we analyze the critical parameters of the circuit and calculate the value of phase noise at the 1 / f ~ 2 region
引入「有效電阻」的概念對電路的各項關鍵參數在線性時不變模型下進行理論分析和推導,得到相位噪聲在1f2區域的理論值。0 x 10 " 3 and 264. 6mpa respectively. 6. the damping mechanism at ambient temperature is related to viscous motion of dislocation and interactions between dislocation with various point defects, the viscous sliding between the phase with rich zn and primary a dendrite crystals and the micro - plastic deformation of the soft phase in the eutectic
6 ) azsm合金的室溫阻尼行為與組織中的溶質原子和位錯的交互作用以及位錯的粘性運動、富鋅相與基體之間的粘性滑移、以及共晶體中較軟相的西安理工大學碩士學位論文微塑性變形有關。Abstract : synthesis of sterically hindered dicyclohexylmethyl 、 l - menthyl and tert - butyl diazoacetate by diazo transfer was described on this paper
文摘:研究了用重氮轉移法合成具有較大空間位阻的重氮乙酸二環己基甲酯、 l -薄荷酯和叔丁酯。Exciting method is used to measure the damping, the four damping coefficients of the radial part and a damping coefficient of the thrust part can be obtained though hammering the testing bearing which is in a equilibrium position. based on the testing data, the dynamic characteristic curves of the radial - thrust floating ring hybrid bearing are drawn and compared with the theoretical curves
採用激振法測量軸承的阻尼,對處于平衡位置的測試軸承分別沿水平方向、上45度方向及軸向進行錘擊,根據錘擊法原理求得各個轉速下軸承徑向部分內、外膜總阻尼系數以及推力部分內、外膜總阻尼系數。Using our new behavioral detection spyware doctor can prevent these keyloggers from recording keystrokes and causing damage much sooner than keylogger blockers based on signature - dependent methods
較之於傳統基於特徵碼偵測方竊碼密反的式取工具,使用了最新行為偵測技術的s . d將能夠阻的松輕常非止密碼竊取器記錄鍵盤敲擊定位以的成造此由及損失分享友人