值遞降 的英文怎麼說
中文拼音 [zhídìjiàng]
值遞降
英文
beta degradation-
Precipitating process in this area could be divided into four types, namely : even type, gradually decreasing type, eruptive type and peak type. at the same time, the different raining type produced different sediment - transporting process
庫區的降雨類型主要有均勻型、遞降型、突發型、峰值型等四種，不同的降雨類型存在不同的產流產沙方式。The value of pore water pressure dissipation can be divided into two parts. one part is produced by vacuum degree and the other part by groundwater table lowering
加固區內地基中的孔隙水壓力的最大消散值可分為兩個組成部分：一為真空度的直接傳遞導致的孔壓下降值；二為抽真空引起水位線下降進而引起的孔壓消散值。The weights are trained with gradient descent method. the increase algorithm of bvs, and restricted algorithm, was induced
利用梯度下降法對網路的權值進行訓練，並且推導了bvs的增長演算法，以及網路訓練的限制記憶遞推公式。Based on the full - depth / part - depth shear spring model proposed by luo weide and the theoretical corealation between the pile base resistance and the pile base settlement presented by randolph, a elastic analytical approach for computing the pile compression is conducted
本文利用羅惟德全深度? ?變深度剪切彈簧模型推導了樁身壓縮量的彈性理論解析計算方法，選用randolph的樁端沉降與樁端阻力的關系，利用荷載傳遞法推導了樁身壓縮量的數值計算方法。Fluorescence power transfer function, three - dimensional point spread function ( 3d - psf ) and three - dimensional optical transfer function ( sd - otf ) for the various fluorescent wavelength of the two kinds of fluorescence confocal scanning microscopy are calculated in this paper by using fourier imaging theory. the results show that the fluorescent wavelength has influence on imaging property of confocal microscopy such as spatial cut - off frequency, resolution and 3d - otf. there is a different missing - cone in the 3 - d space of otf when the ratio of excitation wavelength to fluorescent wavelength decreases
本文在sheppard和gumin等人的理論基礎上，利用fourier光學成像理論，討論了不同熒光波長對單光子和雙光子共焦顯微鏡成像特性的影響，導出了單光子和雙光子共焦顯微鏡的熒光功率傳輸函數、三維脈沖響應函數和三維光學傳遞函數，得到了它們在不同激發波長與熒光波長比值時具體的表達式，並且通過數值計算，得到了它們的曲線圖，結果表明：隨著激發波長與熒光波長比值的增加，焦斑的橫向分佈和縱向分佈變窄，橫向解析度和縱向解析度提高，系統的成像效果變好，當激發波長與熒光波長的比值下降到一定程度時，可以看到不同程度的失錐現象。Detailed diagnoses is made on a heavy - hard rain in the northeast qinghai - xizang plateau using ncep data of 1 x 1 with 6h intervals, more complete and integrated conventional observational data and the data set of automatic meteorological stations in plateau and new generation doppler radar data and satellite images and etc. the following conclusions can be drawn : 1. the distribution of heavy - hard rain, which is characteristics of valley topography in northeast qinghai - xizang plateau is obviously effected by topography. the distribution of yearly mean precipitation and the frequencies of heavy - hard rain in this area are descending from east to west
本文首先利用ncep時間間隔為6小時的1 1的格點資料、更全面、更為完整的常規探測資料和高原地區布設的自動氣象站資料、新一代多卜勒天氣雷達資料、衛星雲圖資料等對高原東北部地區大到暴雨的天氣、氣候特徵及大尺度環流背景進行分析，形成對高原暴雨的整體認識，並為以後的數值模擬提供大尺度環流背景及依據，分析中發現： 1 、高原東北部地區大到暴雨的分佈明顯受到地形影響，年降水量和大到暴雨次數自東向西呈階梯性遞減趨勢，分別在高原東北部的外流河谷地區和四川北部地區存在大值中心。3 a novel recursive least - square ( rls ) blind space - time receiver algorithm based on the constrained condition, which can completely avoid the matrix inversion introduced into by constraints ( comparing with the normal rls ), is proposed for multi - path slow fading cdma channels. the computational complexity of this method is not only lower than that of the normal rls, but also lower than that of both lms and ls blind space - time receiver methods that are realized based on the rosen ' s gradient projection. and the speed of convergence of the presented rls blind space - time receiver algorithm is better than that of both lms and ls blind space - time receiver methods
3 、針對多徑慢衰落通道下ds - cdma盲空時接收機中線性約束二次規劃問題提出一種新的遞歸最小二乘演算法，該演算法完全避免因約束而引進的矩陣求逆運算（相對于常規的遞歸最小二乘演算法） ，不但運算量比常規的要低，而且比基於rosen梯度投影實現的最小均方（ lms ）與最小二乘盲空時接收機演算法還低，且收斂速度比基於rosen梯度投影實現的最小均方（ lms ）與最小二乘盲空時多用戶檢測都好，將提出的新的遞歸最小二乘演算法與提出的數據選擇方案結合起來可以進一步降低其運算量，具有很大的實用價值，最後通過模擬實驗進一步分析了其性能。A bearing surface transmits the interaction between an arch dam and its foundation, the strength of which directly affects the constraint of the bedrock to the dam, and thus affects the stress and deformation of the dam. the influence is studied in this paper with nonlinear finite element method, as an example, for a high arch dam in design. the results show that the influence on stress is only limited within the local area near the bearing surface, larger on the maximum principal tensile stress than on the principal compression stress, and the decrease of the strength does not cause unlimited increase of the maximum stress. the influence on the displacement of the top of the dam is smaller than that of the bottom of the dam, especially the relative downstream displacement. at the lower strength of the bearing surface, the relative downstream displacement at the bottom of the dam increases with the decrease of the strength
建基面是傳遞拱壩和基巖相互作用的紐帶，它的強度直接影響基巖對壩體的約束，從而影響壩體的應力和變形.採用非線性有限單元法，以設計中的某高拱壩為例，分析建基面強度對壩體應力和變形的影響.結果表明建基面強度對壩體應力的影響僅限於建基面附近的局部范圍，對最大主拉應力的影響要大於對最大主壓應力的影響，建基面強度的降低不會無限地增大壩體的應力數值；建基面強度對壩頂位移的影響較小，但對壩底位移（尤其是順河向相對位移）的影響較大，當建基面強度較低時，壩底順河向相對位移隨建基面強度的降低而增大The dynamic predigesting model for passive isolation of flexible base system was established, and the four - pole parameters and machinery impedance methods were adopted to analyse the system, the expression of the responsibility and power flow transmissibility was deduced. by means of the matlab programming language, the responsibility and power flow transmissibility were simulated. proposed the vibration contrl method of optimizing system parameters. the methods proposed in this dissertation, can meet the requirement of decreasing vibration and noise for flexible base, and have some practicability and reference value
對柔性基礎被動隔振系統進行了力學建模簡化，並採用四端參數和機械阻抗方法對其進行分析，推導出其響應比和功率流傳遞率的表達式，並利用matlab程序設計語言對響應比和功率流傳遞率進行了模擬模擬。提出了以優化系統參數為措施的振動控制方法。本文所提出的方法，能夠滿足柔性基礎減振降噪的要求，具有一定的實用性和參考價值。Zny, ni ( 1 - y ) fe2o4 and cobalt substituted ni - zn soft ferrite powders of zn0. 4ni ( 0. 6 - a ) coa fe2o4 are synthesized by shs. the shs powders and cycle samples are annealing in 1100 for 2h. their magnetic, and micro structural properties are studied using xrd, vsm and sem techniques. the studies reveal that the value of hc mr and ms of the powder of zn yni ( 1 - y ) fe2o4 are maximal when the value of y is 0. 4
研究發現：隨著zno含量（ y值）的增加，粉末產物的矯頑力（ hc ） 、飽和磁矩（ ms ）以及剩餘磁矩（ mr ）先增大（在y = 0 . 4時取得最大值）然後再下降；磁環表面顆粒逐漸長大，孔隙率減少，密度增加；磁環的bs與br先增大再減小，在y = 0 . 4時達到最大；磁環的矯頑力hc是遞減的。It is appropriate commonly that the resolution of ccd sensor imaging is 1. 8 times of the pixel dimension, in the mean while the mtf decreases 11 %, because the mtf is bigger, the other parts are easier to be made and the image shows the characterization of the object well. 2
一般情況下取ccd探測器的目標影像分辨力是其像元尺寸的1 . 8倍較為適中，因為這時的mtf數值較大對系統的其它環節的指標壓力較小，且圖像較好地反映了目標圖形的特徵，此時其光學調制度傳遞函數mtf下降了11 。分享友人