余維數 的英文怎麼說
中文拼音 [yúwéishǔ]
余維數
英文
kodimension codimension-
The complete open nonnegatively curved riemannian manifolds with souls of codimension one
核心的余維數為1的具非負曲率完備非緊黎曼流形Along with the progress of drilling technology, many new types of bha such as steering motor assembly, dropping assembly with eccentric bend sub, dropping assembly with flexible connection are developed based on common building, dropping and holding assemblies. for using these bha, a new mathematical model is put forward for 3d static analysis of these types of bha under small deflection. and its weighted residual solution is given. the mathematical model includes ( 1 ) differential equations ; ( 2 ) boundary conditions at drill bit, stabilizer, bend angle, diameter change, tangential point and borehole wall ; ( 3 ) lateral forces and deflection angles of bit. the software based upon this method runs well
為了更好地應用各種新鉆具，建立了適用於對普通下部鉆具、導向鉆具、帶偏心彎接頭和柔性接頭的下部鉆具進行三維小撓度靜力學分析的數學模型，包括（ 1 ）微分方程； （ 2 ）鉆頭、穩定器、彎角、變截面、切點和井壁的邊界條件； （ 3 ）鉆頭的側向力和鉆頭轉角.給出了該模型的加權余量解.用該方法編寫的軟體應用效果良好Abstract : thermally induced stress and the relevant warpage cause by inappropriate mold design and processing conditions are problems that confounded the overall success of injection molding. a thermorheologically simple thermoviscoelastic two - dimension material model is used to simulate the residual stress and warpage within injection molded parts generated during the cooling stage of the injection molding cycle. the initial temperature field corresponds to the end of the filling stage. the fully time - dependent algorithm is based on the calculation of the elastic response at every time step. numerical results are discussed with respect to temperature and pressure
文摘:不均勻的熱殘余應力及其變形是注塑成型加工中常見的工程問題之一.應用熱流變簡單材料的二維熱粘彈本構方程得到的遞推公式，數值模擬了成型中的熱殘余應力及其翹曲變形，並用數值實驗討論了溫度、壓力對注塑件殘余應力及變形的影響，發現溫度變化不均勻是注塑件翹曲變形的最主要原因，其影響遠大於壓力的作用，與工程實驗的結論一致The classification of differential function germs whose codimention is less than or equal to 5 had been done by topologist r. thom
對于余維小於等於5的可微函數芽的分類，拓撲學家r thom早就已經給出了分類結果。Aesthetic appearance is one of the most important criteria used by consumers in judging clothing wear performance. bagging is a kind of three - dimensional residual deformation that deteriorates garment appearance during wear and caused dissatisfaction. to understand the psychophysical mechanisms of fabric bagging perception, a method of subjectively evaluating this behavior is developed by using a series of photographs taken from bagged fabric samples. both ranking and rating scales are used as the psychological scales. the two scales are highly correlated with each other, but the rating scale provides more information than the ranking scales and can indicate perceived differences between fabrics. a linear relationship between subjective perceptions and measured residual bagging height shows that perception of fabric bagging follows stevens ? power law. residual bagging height contributes up to 94 % of the total variance in the perception of fabric bagging. the rest of the variation may be attributed to anistropic behavior during the bagging process
美觀是消費者日常服裝穿著功能中最重要的指標之一.起拱是一種外衣穿著中引起變化，令人不滿的三維殘余變形.一種主觀評價方法是從一系列起拱織物的照片來理解心理物理學規律，採用優劣排序等級和優劣評判等級兩種方法用於心理評價標度.這兩種等級互相間緊密相關，但評判等級比排序等級包含更多的信息，可以更好地區分出兩種織物間的差異.主觀評價結果與測量得到的殘余起拱高度之間線性相關，表明了織物起拱特性符合斯特藩指數定律.殘余起拱高度對織物起拱特性總方差的貢獻在94 %以上.其它可能是起拱時各向異性因素引起的In metal matrix composites, thermal residual stresses will arise due to get ( coefficient of thermal expansion ) mismatch between matrix and fiber during cooling
在擠壓鑄造的金屬基復合材料中，由於基體和纖維的熱膨脹系數相差很大，所以在制備過程中由高溫（工藝溫度）冷卻至室溫時復合材料中會有熱殘余應力產生。In the second section, we study the multiplicity of weak focus in system ( 1 ) when b = 0, then system ( 1 ) becomes : in [ 7 ], the authors show that system ( 2 ) has rich global dynamics depending on all parameters, including a weak focus with multiplicity at least 2, but the authors did n ' t calculate the multiplicity. in the second section of this article, we calculate the order of the weak focus with formative series method and mathematica 4. 0, and show that the order of the weak focus is two for some parameters. we also get the stability, then by hopf bifurcation theorem, we show that system ( 2 ) has at least two limit cycles for some parameters
而且我們選擇了系統的原參數中的二個作為分支參數，可以使系統（ 1 ）進行bogdanov - takens余維2普適開折，從而證明系統（ 1 ）同宿軌的存在性。第二部分我們討論系統（ 1 ）當b = 0時細焦點的階數。當b = 0時，系統（ 1 ）為一文7對系統p ）進行了全參數分析得到系統）豐富的全局動力學性質，但當參數取某些值時系統間出現了階數大於或等於2的細焦點，文沒有計算該細焦點的階數。Especially, when the isocline of x is monotone decreasing in 0 < x < 1, the svstem has no limit cycle and is globally stable ; next, we construct a saddle bifurcation at the boundary equilibrium and a degenerated bogdanov - takens bifurcation at the interior equilibrium by choosing appropriate parameter values in the following two sections, where our work are based on the theory of central manifolds and normal torms. we prove that is a codimention 3 focus - type equilibrium. system ( 6. 1 ) will have two limit cycles at some appropriate bifurcation parameter values, and have homoclinic or double - homoclinic orbits at some other appropriate bifurcation parameter values ; at last, we study the qualitative properties of the system at infinite in the poincare sphere
因為系統在（ 0 ， 0 ）點處沒有定義，這給研究其在（ 0 ， 0 ）附近的動力學性質帶來了困難，我們應用文獻[ 17 ]中關于研究非線性方程奇點的系列理論和方法，圓滿解決了這一問題，給出了第一象限內當t +或t -時，在全參數狀態下系統的軌線趨于（ 0 ， 0 ）點的所有可能情況，其相圖也得以描繪；並且，系統不存在極限環的幾個充分條件我們也予以列出，當x的等傾線在0 x 1范圍內遞減時，系統不存在極限環，全局漸近穩定；然後，我們以中心流形定理和正規型方法為主要工具，巧妙選擇參數，分別構造了一個余維2的鞍點分岔和一個余維3退化bogdanov - takens分岔，證明了平衡點是余維3的焦點型平衡點，存在參數， m ，的值使得系統（ 6 . 1 ）有兩個極限環，還存在參數， m ，的另外值使得系統（ 6 . 1 ）有同宿軌或雙同宿軌。In this dissertation, the research trends for the problem have been introduced ; the ‘ dim ’ and ‘ point ’ has been strictly defined in mathematics from machine vision and human vision ; the ideal clutter suppression system based on clutter predication and the realization and evaluation of evaluation index has been studied, in succession the clutter suppression technologies have been researched. firstly, the classic nonparametric algorithm has been analyzed in detail and systematically, for it ’ s weakness that it cannot remove the non - stationary clutter ideally, kalman filter algorithm for clutter suppression in 2d image signal has been built. secondly, fast adaptive kalman filter is presented based on fast wide - sense stationary areas partition algorithm : limited combination and division algorithm based on quarti - tree algorithm, new taxis filter route algorithm which can break through the limitation of the necessity of pixel neighborhood of 2d filter and laplace data model with two parameters which is perfectly suitable for the residual image of kalman clutter suppression
首先分析了經典的非參數法，對於四種具有代表性的核，從前述的三個性能評價方面做了分析和對比，指出了其速度快的優點和對非平穩圖像適應性差的弱點，針對非參數法的弱點，重點研究了對非平穩圖像適應良好的卡爾曼雜波抑制技術:建立了非平穩圖像的類自回歸模型，在此基礎上建立了二維卡爾曼濾波基礎的兩個方程:狀態方程和測量方程;建立了非平穩圖像準平穩區域快速劃分演算法:基於四叉樹法的有限分裂合併演算法;二維空間的基於k排序的濾波路線演算法，突破了空域濾波路線上區域相鄰的限制;在這些研究的基礎上實現了快速卡爾曼估計，實驗驗證了該方法相對逐點卡爾曼估計可以提高運算速度三倍左右;雜波抑制結果表明傳統的高斯性檢驗並不適合卡爾曼估計后的殘余圖像，由此建立了殘余圖像的雙參數拉普拉斯模型，實驗表明其可以完好的吻合殘余圖像的概率密度曲線。In this paper, we studied the co - dimension decreasing of submanifold. we point out that on certain condition, the co - dime nsion can be reduced to 1
本文研究了常曲率空間子流形余維數減少的問題，說明了在一定條件下，余維數可以減少到1Structural constants of finite dimension algebra and coalgebra
有限維代數及余代數的結構常數After a few months or even a year, our hormones and brain chemistry begin to change, and our " thinking " brain - - the cerebral cortex - - may notice that our partner is flawed
結婚數月或年余之後，我們體內的荷爾蒙和大腦中的化學物質開始發生變化，大腦中負責「思維」的大腦皮層開始注意到我們的伴侶並非那麼完美無瑕。The criterion and applications of finite codimensional ideals in the ring of germs of c real functions
實函數芽環中有限余維理想的判定和應用Because the ancient guangxi developed late 、 the landlord economy developed incompletely 、 the political customs autonomy and the different culture types between the minority nationality and the han nationality ; guangxi family and clan regulations develop late which not only include the han nationality ' s culture speciality but also maintain its own nationality tradition 、 not only remain the primitive customs remainders, but also absorb the content of legal reformation. the family laws and clan regulation have many persuading regulation and pay more attention to punishing the bandit and thief. in the ancient
由於古代廣西社會整體發展滯后，地主經濟發育不充分，政治上實行「故俗治」 ，少數民族文化與漢民族文化存在較大差異等因素，使廣西家法族規呈現出形成時間晚，既體現漢民族宗法文化特色又維護其本民族傳統，既保留原始習俗殘余，又吸收法律變革內容和勸誡式規范多，懲罰力度較輕，相對重視對盜匪的懲罰等特點。This artical will use the similar way as [ 1 ] by the discussion to many kinds of situations and by the calculation to the codimention of ideal to discuss the classification and of differential function germs whose codimention is more than 5 and less than or equal to 8
本文將使用與論文類似的方法，經過對各種情況的討論和理想的余維數計算，對余維數大於5小於等於8的可微函數芽的分類加以討論，並給出證明。Then three schemes of the preconditioned sparse matrix canonical grid ( p - smcg ) method are presented and discussed. the sparse matrix canonical grid method is applied to analyze electromagnetic scattering from three - dimensional random dielectric scatterers in conjunction with the generalized minimal residual ( gmres ) method. in the end, these four schemes are applied to analyze electromagnetic scattering from three - dimensional random dielectric scatterers
論文首先運用smcg方法對隨機分佈三維介質目標的電磁散射問題進行較為全面的分析和討論，然後討論了如何對smcg方法進行預處理，提出了預處理smcg方法的三種方案，接下來又討論了將smcg方法和廣義最小余數法（ gmres ）結合起來的方案，最後應用上面提出的四種方案對多個隨機分佈三維介質目標的電磁散射問題進行了分析。分享友人