非對角元 的英文怎麼說
中文拼音 [fēiduìjiǎoyuán]
非對角元
英文
nondiagonal element-
Results the diagnostic accuracy of cut film with conventional ap and lateral views was 80. 5 %, the diagnostic accuracy of cine film with angulated views was 90. 0 % and the diagnostic accuracy of dsa using non - ionic contrast medium with angulated views was 96. 5 %
結果用快速換片心血管造影設備和常規正側位元投照時的兒童先天性心臟病心血管造影診斷符合率為80 . 5 % ,用電影心血管造影設備和軸位元成角投照技術時的造影診斷符合率為90 . 0 % ,採用數字減影心血管造影設備,軸位成角投照技術和非離子型對比劑時的造影診斷符合率為96 . 5 % 。A determinant whose only nonzero elements occur in square blocks centered about the principal diagonal is in block-diagonal form.
僅有的非零元素集中於主對角線的方塊中的行列式是分塊對角形式的。On the basis of experimental research, this thesis applies 2 - dimensional non - linear finite element method to the analysis of transient temperature field on the section by means of relatively high precision triangular element of six joints. when the temperature field is analyzed, finite element reseaus are divided in space field and finite difference reseaus are divided in time field, and then the program is compiled. the computing results are in good agreement with the test data
在試驗研究的基礎上,本文採用精度較高的三角形六結點單元對構件截面二維非線性瞬態溫度場進行了有限元分析,即在空間域內採用有限元網格劃分,在時間域內採用有限差分網格劃分,據此編制了計算程序,計算結果與試驗數據符合較好,程序穩定性好,精度滿足要求。Due to the importance of the accuracy of the time - domain impedance matrix elements, the techniques by which treating of the singular integrals and near singular integrals arose from the tdie - mom solving process are analyzed in detail, and these techniques are utilized to solve the tdie. in the end, using triangle patches discretizing arbitrarily 3 - d dielectric objects and metal - nonmetal composite objects surface and utilizing spatial rwg and temporal triangular bases, the tdie are solved by mot algorithm
最後,分別對三維介質目標、金屬非金屬組合目標散射體表面用三角貼片離散,並在空間上採用rwg基函數,在時間上採用三角型時間基函數、利用阻抗元素的精確演算法計算出阻抗矩陣,再運用mot法分別求解了介質體目標,金屬非金屬組合目標的時域積分方程,並分析了金屬非金屬組合目標分界面上的等效電流與等效磁流的特性。To the level control problem of a spherical tank, two model - free control methods are proposed. in the former method, the takagi - sugeno fuzzy model is used to tune the neuron controller gain. in the latter method, the model - free control method using the neural network model proposed for nonlinear plants is presented
針對具有非線性特性的球形容器液位受控對象,從增益自調整和非線性補償兩個角度,分別提出了兩種非模型控制方法,前者採用t - s模糊模型對神經元控制器的增益進行在線整定,後者使用本文建立的非線性神經元網路對球形容器進行非模型控制。The software ansys6. 0 is used to analysis the stability of the state after construction of tongwamen bridge, linear method is used in analyzing the finite element model of the bridge, the coeffient of stability of different state after construction is given. on the basis, the effect of different factors such as the arrangement of lateral brace, the sloping angle of arch ribs, the stiffness of bridge deck system, the effect of non - orientedly conservative loadings of the hanger and tie bar etc is discussed. the different coefficients of stability of changing these factors are given, so the factors that are vital to the lateral stability of x - type arches are found, and the rationality of the methods taken to enhance the lateral stability of tongwamen bridge is evaluated
本文應用有限元分析商業軟體ansys6 . 0 ,採用線彈性方法,通過對該橋的空間有限元模型進行穩定性分析,得出其成橋運營階段各種工況下的穩定安全系數。在此基礎上,本文還通過有限元模型分析,就拱的矢跨比、吊桿(立柱)的非保向力效應、橋面系的剛度、橫撐布置形式、拱肋側傾角等因素對該橋整體穩定性的影響展開探討與研究。文中給出了各因素變化情況下的穩定安全系數,指出了對鋼管混凝土提籃拱橫向穩定性有顯著影響的因素及其合理變化范圍,並對銅瓦門大橋提高橫向穩定性的措施的經濟合理性進行了分析。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。6 ) the incapability of feeding back the testing results on time. aiming at solving the problems ibid, and taking advice from professor gardner into account, this thesis offers a detailed analysis of the original 80 armstrong questions with the mi theory as reference also it offers a new design of the testing questions which includes tests for students as well as aided test questions for teachers and parents so that make it more pertinent. this design emphasized on solving the problems and reviewing the capability, and at the same time taking the different characters of the objects into account
本文正是針對以上問題,以加德納教授的測評設計思想為指導,以阿姆斯特朗教授設計的80道題目為基礎,詳細分析題目含義,根據題目本身性質,重新設計成學生自測題和家長、教師、同學等他人助測題,一方面使測評題相對于不同的角色對象有較強的針對性;同時使測評題目著重於問題的解決和能力的體現,而非關注于偏好、興趣或者是自我描述,使之更符合多元智能測評要求。Anisotropic convergences of some famous finite elements are also analyzed, and a lot of numerical experiments have been carried out - many applicable triangular and rectangular elements have been developed for the plate bending problems, some of them are conforming and some of them arc unconforming, but the researches on quadrilateral piar. e elements have been seldom reported
對薄板彎曲問題,已提出了很多適用的三角形元和矩形元,有協調的,也有非協調的。但關于任意四邊形板元的研究尚不多見。對于矩形元,從參考元(Based on the careful strata correlation and division of chang - 6 formation of panguiang in jing ' an oil field, the article discusses the structure characteristics, the sand body shape and distribution and the microfacies feature of chang - 6 oil set, analyses the physical properties and heterogeneities of the reservoir which is classified three types as i, ii and iii type, summarizes the relation between microfacies, sandbody distribution and physical properties, evaluates the reservoir from the flow unit aspect, reveals the affecting feature of oil concentration
本文在對靖安油田盤古梁油藏長6油層組進行小層精細劃分和對比的基礎上,詳細研究了盤古梁長6油層組的構造,砂體形態、展布方向及沉積微相特徵,對儲層的非均質性作了定性定量的分析並且對其進行分類,總結了沉積微相和砂體展布、物性之間的關系,從流動單元的角度對砂體進行了評價,揭示和確定油氣富集規律的影響因素。The present findings of nonlinear research in frame structures, and the methods for design of second - order effect in the codes from china and other countries, were briefly introduced in this paper. the contents and methods of design and calculating about second - order effect in gb50017 - 2003 were discussed as well. a rotational displacement equation for geometric nonlinear structures was derived, and then a nonlinear finite element program for rigid frames was compiled by fortran
本文簡要地介紹了框架結構非線性研究的現狀以及各國規范對框架二階效應的設計內容和方法;對我國《鋼結構設計規范》 gb50017 - 2003給出的考慮框架結構二階效應的方法進行了探討;推導了基於幾何非線性框架的轉角位移方程,在此理論基礎上用fortran語言編制了剛性框架二階內力分析的有限元計算程序,並用此結構分析程序對多種框架進行了一階和二階的彈性分析,討論了二階效應在框架分析中不應忽略的原因,同時分析了影響框架二階效應的因素。We deduce easily the coherent term of quantum dynamical model ( the off - diagonal of reduced density matrix ) by improving the nature of displace operator and the nature of coherent states. then, the interaction is energies of a two - photon mechanism and the usual one - photon or liner driving mechanism. we deduce the coherent term by improving the nature of squeezing operators, displace operators and canonical transformation
其一,僅有阻尼相互作用和勢能相互作用,此時利用位移算符的性質和相干態的性質很方便地推導了量子動力學模型的相干項(約化密度矩陣的非對角元) ;其二,考慮的是既有單光子相互作用又有雙光子相互作用,這時利用相干態、壓縮算符及正則變換等的性質推導出相干項。Have been suggested. given a contingency table whose cells are numbers of parents who either do or not transmit the associated marker alleles to affected children, t compares every symmetric pairs, both tn and t compare row and column total for every marker allele. tm uses all cells but t uses non - diagonal elements only
給定一個列聯表(其元素為傳遞或未傳遞某種等位基因給生病小孩的父母的個數) , tc比較列聯表的每一個對稱的部分, tm和tmhet均比較其相應的行和與列和,但tm用到了表中所有的元素,而tmhet只用了非對角元素。Firstly, optical trigonometry measurement principle and wok principle of linear ccd are introduced, which are based on to design optical focusing and imagery system with he - ne laser instrument as illuminant. secondly, peripheral circuit of linear ccd is designed in theory and experiment. finally non - contact thickness measurement instrument is constructed, using ccd as photoelectric transformation element and microprocessor as the controller
本文首先介紹了光學三角法測量原理,並對線陣ccd的工作原理進行了研究,以此為基礎採用氦氖激光器為光源,設計了光學聚焦及成像系統,對線陣ccd外圍電路的設計進行了理論設計和實驗研究,最後設計了以ccd為光電轉換元件,以微處理器為控制核心的非接觸式厚度測量儀及其系統。According to the dirac constrain theory and the extended condition, we deduce the gauge generators, show the brst transformation of ( 1 + 1 ) dimension o ( 3 ) non - linear model under the new general condition. we first gain the new general commutation relations of ghost field, deduce the brst charge from gauge generator, complete the general brst quantization of the model, get green function, connecting green function and generating functional, gain three kinds of ward identities. at last, we complete the brst quantization of o ( 3 ) non - linear model with topological term in ( 1 + 1 ) dimensions space - time
最後依據dirac約束規范理論和推廣的條件,導出了規范生成元,推導出了1 + 1維o ( 3 )非線性模型的新的一般條件下的brst變換,給出了其brst變換與dirac規范變換的等價性,首次得到了鬼場的一般對易關系,且其一般參數為零時就回到通常的鬼場的對易關系,第一次由規范生成元導出了brst荷,進而完成了此模型的一般的brst量子化,並在此基礎上進一步導出了此系統的green函數、連通green函數生成泛函和正規頂角生成泛函,獲得了三種不同的ward恆等式。Taking erectophile type continuous vegetation as a example, authors had done many monte carlo simulations, and established empirical analytic expressions of radiances with component temperature, soil emissivity and leaf area index. empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters, such as component temperature, soil emissivity and lai, from thermal infrared 2 channels and 2 angles data. many experiments of genetic algorithm inversion from simulated data were conducted, results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken. comparison between inversion results and ground - truth data has been done. this paper offers a new example to retrieve component temperature from multi - channel, multi - angle thermal infrared data based on the model of directionality of thermal radiance
在熱輻射方向性規律的基礎上,以喜直型連續植被為例,進行了大量的monte carlo模擬,建立了輻射亮度和組分溫度植被葉面積指數及土壤比輻射率之間的經驗函數關系。採用遺傳演算法,從熱紅外2個波段2個角度數據中,同時反演混合像元組分溫度土壤比輻射率和葉面積指數等5個參數。通過對模擬的觀測數據進行大量的遺傳演算法反演試驗,結果表明,遺傳演算法反演組分溫度非常穩健,在寬松的先驗知識條件下,遺傳演算法可以解決不確定性反演問題。By simulating body node with fea software ansys and comparing its results with the experiment ones, natural capacity of semi - rigid connection node itself was discussed, and the experimental results were analyzed additionally, and the bearing conditions of sections which could n ' t be tested in experiment were obtained, as well as two kinds of bearing conditions under different conditions that the connections with and without stiffener were compared in detail
在討論半剛性連接節點本身的性能時,通過有限元軟體ansys對節點進行三維非線性有限元精細模擬,將計算結果與試驗所得數據對比,對試驗結果進行補充分析,了解沒有測到試驗數據的節點組件在加載過程中的受力情況,並對帶雙腹板角鋼頂、底角鋼連接在有無加勁肋兩種情況下的受力狀態進行詳細對比。Some properties of the quasi diagonally dominant matrix with chain of non - zero elements
擬具非零元素鏈對角占優矩陣的若干性質The method which eleminates the doa ambiguity using the nula is presented in this dissertation. the theory and the algorithm of the doa ambiguity resolution is showed. the re - configurating array elements location is not necessary in this algorithm, and the ambiguiry is well suppressed
本文討論了通過非均勻線陣陣列設置解模糊的方法,闡述了變頻率解測角模糊的原理,並給出一種演算法,該演算法不需要對陣元位置進行設置,且對模糊有較好的抑制。Trend prediction and fault diagnosis tech., etc. the information intelligent processing technology facing the application is presented as an emphasis. after introducing the development situation and the whole pattern on related fields, this paper describes several algorithm applied in the simulation experiment, including direct multi - steps nonlinear autoregressive - moving average ( narma ) prediction model based on diagonal recurrent neural networks and fuzzy neural networks model based on generalized probability sum ( gps ) and generalized probability product ( gpp ), and lists the algorithm steps facing the application
作為重點,本文辟用了較大的篇幅討論面向應用(主要是趨勢預測與故障診斷)的集成智能信息處理技術,在介紹相關領域的發展情況和總體格局之後,重點闡述了幾種基於神經網路的智能演算法,包括基於對角遞歸神經網路( drnn )的直接多步非線性自回歸滑動平均( narma )預測模型,以及基於廣義概率和( gps )與廣義概率積( gpp )兩種運算元的模糊神經網路模型,給出了它們的詳細演算法及面向應用的運算步驟。分享友人