數值因子 的英文怎麼說
中文拼音 [shǔzhíyīnzi]
數值因子
英文
numberical factor-
2 the theoretical values of the second virial coefficient are precisely fitted into some simple expressions. according to one of them, a new temperature function for the quadratic terms in cubic equations was derived : the function is simple, general, without acentric factor, truly predictive, theoretically sound, and applicable to all the van der waals - type equations
2將第二維里系數的理論值較精確地擬合為幾種簡單的表達式，並據此導出了立方型狀態方程中二次項溫度函數的新形式該式簡單、通用，不含偏心因子，具有真正的預測功能和堅實的理論基礎，原則上適用於所有vanderwaals型方程。Optimized association rules are permitted to contain uninstantiated attributes. the optimization procedure is to determine the instantiations such that some measures of the roles are maximized. this paper tries to maximize interest to find more interesting rules. on the other hand, the approach permits the optimized association rule to contain uninstantiated numeric attributes in both the antecedence and the consequence. a naive algorithm of finding such optimized rules can be got by a straightforward extension of the algorithm for only one numeric attribute. unfortunately, that results in a poor performance. a heuristic algorithm that finds the approximate optimal rules is proposed to improve the performance. the experiments with the synthetic data sets show the advantages of interest over confidence on finding interesting rules with two attributes. the experiments with real data set show the approximate linear scalability and good accuracy of the algorithm
優化關聯規則允許在規則中包含未初始化的屬性.優化過程就是確定對這些屬性進行初始化，使得某些度量最大化.最大化興趣度因子用來發現更加有趣的規則;另一方面，允許優化規則在前提和結果中各包含一個未初始化的數值屬性.對那些處理一個數值屬性的演算法進行直接的擴展，可以得到一個發現這種優化規則的簡單演算法.然而這種方法的性能很差，因此，為了改善性能，提出一種啟發式方法，它發現的是近似最優的規則.在人造數據集上的實驗結果表明，當優化規則包含兩個數值屬性時，優化興趣度因子得到的規則比優化可信度得到的規則更有趣.在真實數據集上的實驗結果表明，該演算法具有近似線性的可擴展性和較好的精度And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。On the basis of expound the theory of building exterior - protected construction energy consumption and the gene of influence the building energy, set up mathematics model, this article discuss the mechanism of dispelling the heat of the buildings " thermal bridge and the complication that influence it, and then synthetic analysis and calculate the influence range of building thermal bridge in exterior - protected construction column thermal bridge to the building outer wall get the conclusion that when the construction column can satisfy the building stress - area, in bulgy construction column dispel less heating than out bulgy construction column. but if the pole stuck out more than 100mm, in bulgy or out bulgy make no difference
本文在闡述建築圍護結構耗熱原理以及影響建築能耗因子的基礎上，採用數值模擬方法，探討了建築熱橋傳熱的基本機理和影響建築熱橋傳熱的因素，進而對建築熱橋在圍護結構傳熱中的影響范圍進行了綜合分析和計算，研究了構造柱熱橋型式對建築外墻能耗的影響，得出了構造柱在滿足建築受力面積要求的情況下，內凸構造柱較外凸構造柱略能減少散熱量的結論，但是凸出過大（ 100mm ）無論內凸還是外凸對建築耗熱都沒有大的差別。The approximation analysis result of band dipole model is obtained on the basis of the theory of mfl. the electromagnetic distribution feature of the defect in the steel panel is studied by means of simulation. the leakage magnetic distribution of the two defects and four defects plural and the defects in the column differently in the width are also assayed. conclusions that factors affecting flaw magnetic leakage to the panel also affect the column and magnetic leakage bx should be the feature of the flaw identification to several flaws are drawn
在對漏磁檢測原理進行詳細介紹的基礎上，得出了帶偶極子模型的近似解析解，並以有限元數值模擬分析為主要手段，以鋼板上缺陷為對象，分析了各因素對缺陷漏磁場產生影響的不同規律，同時模擬分析了板上平行的兩條裂紋，四條裂紋以及柱體上寬度不同時的裂紋的漏磁場分佈特徵，得出結論:影響板上缺陷漏磁場的諸因素會對柱體上缺陷漏磁場產生同樣的影響;對于多條裂紋，宜用漏磁分量bx作為缺陷識別的特徵量。Zhoushan is sea area which fertility is tiptop in our country. sea surface wind is important factor of influencing contrail of excursion oil and culturist so investigating sea surface wind of zhoushan and setting up numerical forecast model which fits this sea area can offer tool for study sea wind in this area and let us has a mensurable acquaintance ship of effect degree of physics factors which effect sea surface wind in zhoushan sea area and acquaint oneself with physic process
而海面風是影響溢油油團漂移軌跡和養殖業的重要因素，因此，對舟山海域的海面風進行研究，建立適合此區域的數值預報模式，可為研究該區域海面風作用過程提供數值預報工具，使我們對近海區域海面風場作用中物理因子的影響程度有更定量的認識，並對物理過程和影響機制有更深刻地了解。2. an optimal design that is good for individual function can be realized through adjusting the adding authority gene to have the dispart objective functions given up to each other if certain targets are to be improved during optimization calculating
2 、在優化計算時，要想使某項指標提高，可以通過調整加權因子來實現，使各分目標相互作出一些讓步，以取得一個對于各分目標函數值都比較好的最優方案。Numeral results of dsif at radial crack tips of ellipse and square cavities are provided. then the influences of different shape cavities upon the dsif at the crack of their edges are discussed. 5. scattering of sh - wave by a radial interface crack at the edge of arbitrary - shape - cavity is studied
給出了橢圓孔和方孔孔邊徑向界面裂紋尖端動應力強度因子的數值結果，討論了在不同形狀孔、不同入射波數、不同入射角和不同材料常數組合情況下孔邊徑向界面裂紋尖端動應力強度因子變化的規律。A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎So we consider five financial indexes includes stock b / p, e / p, current stock size, current stock stru and financial levge by the international tradition, then descriptive statistical test method and cross section statistical test method proved that b / p and current stock size have marked effect on the securities yield besides coefficient b. in the third chapter, the article fut forward a risk factor model, estimates yield sequences of every risk factor by weight regression, and then estimates each risk factor coefficient of different stock by time sequence regression, at last we can reckon the portfolio risk o2p and yield rp which consists n stocks
結合國際慣例，文章考慮了股票的凈值市價比（ b p ） ，市盈率倒數（ e p ） ，流通規模（ size ） ，流通比例（ stru ）和財務杠桿（ levge ）等五個財務指標，應用描述性統計檢驗和橫截面統計檢驗等多種方法，結果表明，除系數以外，凈值市價比（ b p ）和流通規模（ size ）對證券收益率部有重要的影響。在論文的第三章，提出了一個基於多因素的風險因子模型，並用加權回歸和時間序列回歸等方法估計出了不同證券的各風險因子系數（類似於單指數模型中的系數） ，據此，即可衡量出一個包括n只股票的組合的風險_ p ~ 2和收益率r _ p 。( 4 ) through level division of the predict result which favorable for mineralize district in the studied areas. we put up a graduate method which is used to divide graduations of statistical result. this kind of dividing method is different from traditional interval or non - interval graduate method, it can avoid a subjectivity for level division and is favorable to divide the high value of the result. ( 5 ) in the light of rank points and weight of the predicting factors, minerogenetic prediction map had been made. on the basis of the map, six favorable districts to mineralize had been determined
這種劃分方法不同於傳統的等間距、不等間距劃分方法，避免了劃分的主觀性，更有利於對預測結果高值區域的劃分； （ 5 ）根據預測因子的級別分數和權重，通過gis疊加分析操作，生成一系列的成礦預測系列圖件，根據預測圖件，在研究區圈定6個成礦有利區。The maximum of the piezoelectric constant d33 is 68pc / n when the volume fraction of pzt, pvdf, pan is 0. 55, 0. 45, and 0. 05 respectively. finally, when the n, a, p are 6, 0. 6, 0. 3 respectively, the calculation value can agree well with the experimental data
而且經過理論計算與比較，當以下三個參量取下列值時，即陶瓷顆粒形狀因子n = 5 、極化率= 0 . 6 、結構因子q = 0 . 3時，實驗數據與理論計算吻合較好。For micro - cavity semiconductor laser, station model is proposed in this paper and its steady - state and instantaneous characteristics when the coupling efficiency of spontaneous emission into a lasing mode is equal to 1 are analysised. for current noise, sp noise, noise, p noise, as well as current modulation, sp modulation, modulation and p modulation, using small - signal approximation, we derive the laser ' s corresponding transfer functions. and we calculate their signal - to - noise ratio ( snr ) gain in various parameters through frequency domain analysis in the premiss of large input snr
本文對于微腔半導體激光器，提出站模型，能夠較直觀簡潔地分析微腔半導體激光器的穩態和瞬態特性，利用此模型對具有重要實用價值的= 1的微腔半導體激光器進行了討論；對于電流i噪聲、自發發射壽命_ （ sp ）噪聲、自發發射因子噪聲、光子壽命_ p噪聲，以及電流調制、 _ （ sp ）調制、調制、 _ p調制，在小信號近似下，得到了相應的激光器的傳遞函數；在大信噪比的前提下，對激光器進行了頻域分析，分別計算了它們在不同參數下的信噪比增益，分析了其抗噪聲性能。Based on the generalized huygens - fresnel diffraction integral and in consideration of the effect introduced by astigmatism, the transformation properties of gaussian beams passing an astigmatic lens are studied analytically, the beam quality of astigmatic gaussian beams is analyzed in terms of the beam propagation factor ( m2 - factor ) and power in the bucket ( pib ), and illustrated with numerical examples
基於廣義惠更斯-菲涅爾衍射積分，並考慮了像散的影響，對高斯光束通過像散透鏡后的傳輸特性作了解析研究，以光束傳輸因子和桶中功率為參數分析了像散高斯光束的光束質量，並以數值計算例加以說明。The updated model with complete forcing has excellent ability of simulation and forecast. to study yellow and east china circulation in winter and summer, based on long - term ocean observation data of january and august, the fine structure of yellow and east china seas circulation is diagnostically calculated with complete forcing ( including surface wind stress, boundary transportation, baroclinic effect, tide, changjiang river runoff ) in winter. the influences of factors on main circulation patterns are discussed respectively
對于冬季和夏季海洋環流的情況，在多年觀測的溫鹽資料基礎上，分別以1月份和8月份代表黃東海冬季和夏季的情況，以月平均大氣風應力、邊界流輸送、溫鹽斜壓效應、潮汐、長江口徑流等作為強迫條件，對黃東海環流的細微結構作了高分辨的三維數值模擬，探討了各因子對冬、夏季主要流系的動力學作用。Through studying the working mechanism of the composing, the paper referred the bearing ' s analyzing model and designing flow. through shearing test of high damping rubber, the paper analyzes the influence of shearing shape, shearing strain range and inspiriting frequence on the characteristic parameters ( dynamic shear elastic module, dissipation engineering module, wasted gene ). according to the rule of equivalent energy, the paper gets the hysteretic curve of hdr ' s equivalent bilinear model and parameters ' calculating formula
本論文通過對這種分離式減震支座各組成部分工作機理的研究，提出了該分離式減震支座整體的計算分析方法和設計流程；通過高阻尼橡膠剪切試驗，分析了高阻尼橡膠剪切面形狀、剪應變幅值、激勵頻率和試件高度對特徵參數（動態剪切彈性模量、耗能模量、損耗因子）的影響。During the applied procession, the writer exerts factor ( principal components ) analysis and cluster analysis to dissect the economic benefit of the agricultural production simply and indirectly, and thereby avoids the difficulties of collecting the related data and inaccurate consequence even though with the essential data
在運用的過程中，筆者獨創性的運用因子（主成分）分析和聚類分析的方法簡便、間接的分析出農產品的經濟效益的好壞，從而解決了經濟效益指標難于收集且收集得到的數值真實性和準確性不佳的難題。The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難，對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析，首次全面分析了非穿透裂紋端部場三維影響區范圍，給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解，並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。The train of thought is : on the basis of the different factors and importance which effect the land use intensive level, economic benefit and environmental benefit, it determines the evaluation index system and the weight value. based on the standardized firsthand data, it defines weighted sum to found a composite index. thus arranging the composite index in mathematical order, it fixes quantitatively the land use intensive level, economic benefit and environmental benefit to demonstrate quantity, structure, scale, benefit and distribution on land use in small - towns of chongqing
其評價思路為:根據影響小城鎮土地集約利用水平、土地利用經濟效益、環境效益的各因子及其重要程度的不同，確定評價指標體系及指標權重，在對原始數據標準化的基礎上，按照指標權重，將各指標值加權求和，得到小城鎮土地集約利用、土地利用經濟效益、環境效益的綜合指數，按綜合指數從大到小的順序對各評價單元進行排序，定量地確定小城鎮土地集約利用水平、土地利用經濟效益、環境效益，從而找出重慶市小城鎮土地利用的數量、結構、規模、效益特徵及布局特點，根據小城鎮土地利用與區域社會經濟發展的互動關系，分析存在的問題及原因，為小城鎮土地利用優化配置、小城鎮建設用地指標管理提供借鑒。Gully erosion, which is universal on original lands, but also the special forms, for example, hole erosion gravel erosion debris slide and debris flow, which is unusual in loess area, ( 2 ) based on a long - term fixed point experiments in proving ground of the south stackpile, the soil erosion factors have been researched quantitatively, the runoff and erosion affected factors have been made sure and the experiential models of producing water and soil have been taken in newly - constructed stage, early stage and later stage of reclamation
確定南排土場原地貌的水蝕模數為3700 4400t km ~ 2 ? a ；在排土場新造地貌上，擊濺、面蝕、細溝侵蝕、淺溝侵蝕、沉陷侵蝕、砂礫化面蝕、土砂瀉溜和坡面泥石流等水土流失形式出現頻率和發生程度都明顯強于原地貌。 （ 2 ）以南排土場徑流試驗場長期的定位觀測為基礎，對排土場未復墾時期、復墾初期、復墾後期的土壤水蝕影響因子進行定量研究，確定了徑流和土壤水蝕的主要影響因子及其臨界值，建立了產流產沙的經驗模型。分享友人