width variation 中文意思是什麼
width variation
解釋
寬度變化-
This thesis introduces the base theory and correlative information of variable frequency speed variation, and expatiates sinusoidal pulse width modulation ( spwm ). the principle of svpwm is in - depth discussed, and a simple algorithm for svpwm is ratiocinated
本文介紹了交流變頻調速的發展概況，分析了其基本原理，闡述了正弦脈寬調制（ spwm ）原理，對svpwm理論進行了研究，給出了svpwm的簡單實現演算法。 -
The kuroshio meander south of japan and the two lee - wave meanders in the kuroshio extension are well presented by the p - vector method. the path of the kuroshio meander, the position of the meanders in the kuroshio extension, the bifurcation of the kuroshio extension and the width of the current display seasonal variation evidently
日本以南黑潮彎曲路徑呈一「 v 」字型，黑潮延續體西段的大彎曲路徑呈現一「 m 」字型，即「兩峰一谷」的彎曲形態，兩峰分別位於144 e和150 e ，且彎曲程度和彎曲位置都呈現較明顯的季節變化。 -
The main works and contributions achieved in this dissertation are concluded as follows : 1. based on the scalar diffraction theory, the mathematical model of optical configuration of transmissive grating interferometer is established. it indicats that moir interference fringes is affected by many parameters, such as grating pitch, light wavelength, light beam size and incidence angle, etc. the variation that the width, intensity, orientation and contrast of moir interference fringes along with every parameter is numerically analyzed
主要的研究內容和所取得的成果可歸納如下: 1 .基於標量衍射理論，建立了透射式光柵干涉儀光路的數學模型，分析了透射式光柵干涉儀的莫爾干涉條紋與光柵柵距、光柵開口比、光波波長、光斑尺寸、光束入射角等多個參數的關系。 -
The transverse stiffness limitation index ? the permissible ultimate width / span ratio b / l of the continuous steel truss girder of railway bridge is analyzed in accordance with the analytic theories of random vibration of train ? bridge time - variation system and the required derailment coefficients and comfort of drivers and passengers in train running through the bridge. the limitation index in question may be referred to in the design of the continuous steel truss girders of railway bridges
基於列車-橋梁時變系統隨機振動分析理論，按照橋上列車脫軌安全系數和司機、旅客舒適度的要求，對鐵路連續鋼桁梁橋橫向剛度限值-橋梁容許極限寬跨比b / l進行了分析，對鐵路連續鋼桁梁橋的設計具有一定的參考作用。 -
The result presents the characteristics of the current system, including current path, width, velocity, volume transport, display seasonal variation evidently
研究表明，該研究海域的流場特徵，包括流軸、流幅、流速、流量等存在較明顯的季節變化。 -
Abstract : based on two order approximation of the variation of refraction index produced by self - action while optical pulses are traveling in kerr - medium, the propagation equation has been solved. furthermore, the strict analytical expressions of the amplitude, width and chirp parameter of chirped gaussian pulse, relative to the propagation distance, are deduced. the solitary wave traveling conditions of fundamental mode gaussian pulse have been discussed
文摘:將光脈沖在克爾介質中自作用產生的折射率變化作二階近似，求解所得到的傳播方程，得到啁啾高斯脈沖幅度，脈沖寬度和周啾參數隨傳播距離變化的嚴格解析解，討論了基模高斯脈沖孤波傳播的條件。 -
The results suggest that a number of species of gephyrocapsa can be separated by using three pairs of following morphological features : 1 ) placolith length against bridge angle, 2 ) bridge angle against roundness, 3 ) placolith length against placolith width. in pleistocene, at about 1. 3 ma, a notable variation in placolith length and bridge angle occurred, while the genus boosted according to the result of earlier studies on this genus ( su, 1996 )
通過對幾種形態因子進行相關分析，發現橋的角度變化與盾盤大小的變化呈現極顯著負相關，即當盾盤長度比起老地層中的種類有所變大的時候，橋角有變小的趨勢；而當盾盤長度比起老地層中的種類有所變小的時候，橋角有變大的趨勢。 -
This variation of stresses is due to the action of in - plane shear strain in the plate, which is termed “ shear - lag ”. stresses larger than the elementary bending uniform stress thus develop at the web - flange connection. an appropriate reduced “ effective width ” of the plate - with the uniform stress equal to the maximum longitudinal stress - has been widely used by engineers in conjunction with the elementary beam bending theory
但實際上翼緣中剪切變形是不均勻的，由此導致正應力沿橋寬呈曲線分佈，從而引出了有效寬度的概念，即按初等梁理論的公式也能得與真實應力峰值接近相等的那個翼緣折算寬度。 -
4. the uncertainty of quasi - dynamic pressure corresponding tables is analyzed systemically. according to the data obtained from the calibration process by varying the pulse width, the regulation of error on consulting the quasi - dynamic pressure corresponding tables caused by the variation of the pressure pulse width is explained. and the applicable scope of the 6ms quasi - dynamic pressure corresponding tables is discussed
4對準動態校準之動態壓力對照表進行了系統的不確定度分析，利用變脈寬校準數據，闡明了由於被測壓力脈寬變化引起的查表誤差的規律，根據該不確定度計算方法，探討了測壓銅柱、測壓銅球用6 . 0 0 . 6ms準動態校準壓力對照表的適用范圍。 -
The form of variable cross - section, used mostly in the practical projects, just has the change of the linear variation on the height of the web plate while keep the width of the flange c hangeless
實際工程中使用最多的變截面構件形式是僅構件腹板高度線性變化，翼緣寬度保持不變的形式。 -
With the different use, the height of the web plate and the width of the flange can be designed to be the form of linear variation respectively or synchronously, as well as the thickness of the flanges can be taken with the different values
根據需要的不同，可以將腹板高度和翼緣寬度分別或同時設計成沿桿長線性變化的形式，並且上下翼緣的厚度可以根據需要取不同的值。 -
Furthermore, the variation of sbs performance parameters, such as threshold and reflectivity, with parameters of pumping laser and multi - mode optical fiber has been researched by analysis of the numerical solution. experiments have also been operated in ld - pumped solid - state laser system with high - repetition more than 100hz and narrow pulse - width between 15ns and 47ns. the experimental results agree with calculated results by the theoretical model
第三章在重復頻率100hz 、脈寬15 47ns可調的dpl系統中，實驗研究了不同芯徑、長度的光纖在不同能量、脈寬的激光泵浦下sbs閾值、反射率等性能參數等變化趨勢，實驗結果和理論分析一致。 -
Four types of constitutive models are provided by the code : linear elastic model, duncan - chung model, nonlinear elastic model taking stress path into account and modified three - element model. contact element is used to simulate possible sliding between soil and structure. with this code, analysis is made concerning the pore pressure dissipation, lateral deformation of the support, ground settlement, bottom heave, and variation in earth pressure and support forces ; both effects of consolidation and coupled effects of consolidation and creep are considered ; furthermore, different combinations of cohesion, permeability and excavation width are elaborated
該程序採用了更合理的開挖荷載的計算方法，可以引入線彈性、鄧肯張非線彈性、考慮應力路徑的非線性彈性和修正三元件模型等四種本構模型，並在擋墻和土之間設置薄層接觸面單元以模擬土體和墻體在開挖過程中可能產生的滑移。 -
The influence of the height, width and the shape of the metal barrier is calculated in this paper. the simulation results show that the shape of the barrier boundary has great influence on discharge efficiency. the variation of electron temperature with gas pressure is also investigated and its result is coincident with the recorded data
對新型蔭罩式結構分析了單元結構的變化對電子平均溫度和放電效率的影響，並觀察了隨壓強的變化電子平均溫度的變化趨勢，模擬結果表明斜邊或弧狀的內斜式結構可提高放電效率，且電子溫度隨壓強的變化趨勢同文獻相符。 -
Channel width variation
通道頻寬變化 -
Abstract : taking a deep basal pit in wuhan as a case history, this article adopts the numerical simulation method ( finite element method ) to study the variation of pit excavation depth 、 anchor prestress 、 pile width and embeded depth of pile and their relationship with the horizontal deformation and displacement of the tiedjogglepile
文摘:以武漢某深基坑為例，採用有限單元數值模擬方法，研究基坑開挖深度、錨桿預應力、樁體厚度、樁體嵌入深度的變化與其錨式連鎖灌注排樁支護結構水平變形位移的關系。 -
The analytical solutions of the gain, dispersion and population difference in the steady state of an open ladder lasing without inversion ( lwi ) system are at first given when the phase fluctuation of the driving field is considered. then the effects of the driving field phase fluctuation on the gain, dispersion and population difference are analyzed by the numerical results from the analytical solutions. our research shows that the phase fluctuation of the driving field will results in a finite line width ; with the line width increasing, the gain decreases monotonously, however, variation of the dispersion isn ? t monotonous, it has a maximum value when the line width takes some value ; the line width varying can ? t lead to change lasing from without to with population inversion
給出了有驅動場位相漲落的開放的梯型無粒子數反轉激光（ lwi ）系統增益、色散和布居數差的定態解析解，進而用得到的數值計算結果分析了驅動場位相漲落對增益、色散和布居數差的影響.研究結果表明，驅動場位相漲落將導致有限線寬;隨著線寬的增加，系統增益單調地減小，但系統色散的變化並不是單調的，當線寬取某個值時，色散有極大值;線寬的變化不能導致無反轉激光向反轉激光的轉變 -
This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation, at the same time the results are given
本文對雙極性調制的無刷直流電動機模擬分析了轉速和調制頻率對轉矩影響同時給出模擬結果。 -
This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation ; the influence of snubber circuit, dead time effects, and modulation frequency to igbt pwm inverterbridge is taken into account, too
本文對雙極性調制的無刷直流電動機模擬，分析了轉速和調制頻率對轉矩影響；並綜合考慮緩沖電路、控制死區及載波頻率對pwm逆變電路中igbt開關損耗的影響。 -
Details of dcfs with the rip is analyzed, including the relation of dispersion and wavelength, variation of dispersion in the c - band, cutoff wavelength of the basic mode, distribution of scalar field and power, macro - bending loss at 1550nm. based on the optimized rip, impaction of radius of core and width of depressed cladding is studied. at the s ame time, a wavelength devision multiplexing system is designed
接著對這種結構的光纖作了分析，包括它的色散與波長之間的關系，色散在c - band的變動范圍，標量場的分佈，基模在光纖中的功率分佈，在1550處的宏彎損耗等。
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