residual set 中文意思是什麼
residual set
解釋
剩餘集-
The elastic foundation model is considered as two - parameter elastic foundation model and its effect to moderate - thick plates are taken into account by a set of governing differential equations. united with hu hai - chang ’ s function, least squares collocation weighted residual method which uses b - spline function as trial function is put forward for solving the bending problems. compare with the results of finite element method of lines, spline finite strip method, accurate solution of series etc. it is proved that the method in this article has adequate accuracy and practical feasibility
本文採用瑞斯納中厚板理論求解彈性地基板，建立雙參數地基與中厚板相互作用的控制微分方程，結合胡海昌的解耦函數，運用雙五次b樣條函數作為試函數的離散型最小二乘加權殘值法分析了雙參數地基上的中厚板的彎曲問題，並將結果與有限元線法、有限條法、級數精確解等進行比較，證明本文方法具有足夠的精確性與實際的可行性。 -
With consideration of the damage to forest soil, production costs, damage to residual stands, the model of optimal selective cutting was set up to find the harvesting policy which would maximize the expected net financial returns and minimize damage to forest soil
以最大凈收益與對林地破壞最小為目標，綜合考慮了採伐作業對林地破壞、林木損傷、生產成本等因素，建立常綠闊葉林最優擇伐模型。 -
An experimental program which includes lots of unidirectional laminae is conducted using t300 / bmp - 316 material for researching the static and fatigue behaviour of the unidirectional ply. the experimental research for mechanical behaviour of a unidirectional lamina is to set up expressions of the normalized fatigue life, the residual strength degradation and the residual stiffness degradation of a unidirectional ply in the longitudinal, transverse and in - plane - shear directions, which also verifies the fact of nonlinear shear stress - strain behavior of a unidirectional ply in the 1 - 2 planes
其中:分別對材料t300 / bmp - 316單向層合板縱向、橫向及面內剪切靜載力學性能及疲勞特性進行了試驗研究，並採用最小二乘法擬合得到各主方向正則化疲勞壽命表達式，以及單層板各主方向疲勞加載剩餘剛度退化表達式及剩餘強度退化表達式;試驗同時驗證了單向層合板1 - 2面上明顯的剪切應力應變非線性關系。 -
In order to study the thermal performance and residual stress of microelectronic subassembly, in this paper, a newly optical interferometry method for 3 - d displacement measurement is developed based on wavefront interference theory. in which the moire interferometry provide the in - plane displacement, but the system is different from the conventional interferometry, the system applies the double diffraction of the specimen grating, the in - plane displacement sensitivity is a factor of 2 higher than that of the conventional moire interferometer. twyman / green interferometry method for out - of - plane displacement measurement is adapted, the advantages of the optical set - up are structure novelty, and the fringe patterns of the displacement fields shown high contrast and spatial resolution
為了詳細研究試件的熱變形特徵以及殘余應力的影響作用，本文在波前干涉理論的基礎上，設計了一新型三維光學測試系統，該系統的平面位移測試基於雲紋干涉方法，但採用與普通雲紋干涉不同的光路系統，利用試件光柵和平面反射鏡組形成的兩次衍射，使平面位移干涉條紋倍增，測量靈敏度是普通雲紋干涉的2倍，系統的離面位移場測試採用泰曼格林干涉光路。 -
Abstract : a new variable structure model reference adaptive control ( vs - mrac ) scheme is proposed in this paper. by transforming a relative degree one system into a first - order - like differential equation, it is shown that the spr ( strictly positive real ) assumption for reference model or its modified form ( if plant relative degree n * > 1 ) can be removed and the tracking error can converge to zero in finite time or a small residual set
文摘:提出了一種可具有非嚴格正實參考模型的變結構魯棒自適應控制方案，可去除變結構模型參考自適應控制中普遍要求參考模型為嚴格正實或當相對階大於1時參考模型經補償后為嚴格正實的假設.在此基礎上提出的變結構控制律可保證跟蹤誤差在相對階為1時于有限時間內收斂到零，而當相對階大於1時則可使跟蹤誤差收斂到一個殘差集內 -
First, the research background of this dissertation is set forth, and summarized with the overview of the history and the current development of residual stress research, based on reading a lot of literatures, and summarized with the general situations of aircraft aluminum alloys quenching and numerical simulation, those are pointed out objective, significance, methods of this research
本文主要採用數值模擬、理論分析、實驗驗證等方法，對航空構件淬火殘余應力的產生及影響進行了研究。主要工作集中在以下幾個方面： 1 、闡述了本學位論文的選題背景，在查閱國內外研究文獻的基礎上，歸納總結了航空鋁合金淬火殘余應力的研究概況，給出了論文的主要研究目標、內容及方法。 -
The main contents of the paper are : ( 1 ) review the state and art for fiber - wound vessel with metal inner lining ; ( 2 ) provide a method to present the technical features including wound process, equal stress dome and fiber gathering at the dome etc. ( 3 ) establish a finite element analysis model considering nonlinear physical and geometrical effects and develop a equivalent constitutive relation for winding graphite fiber reinforced plastic layers ; ( 4 ) set up a failure criterion for the inner metal lining and winding graphite fiber reinforced plastic layers ; ( 5 ) develop a corresponding engineering analysis code based on the commercial software ansys ; ( 6 ) investigate the plastic deformation and residual stress in the inner lining due to winding tension and pre - tension, and stress distribution of the composite vessel under service loading case
本文旨在為具有金屬內襯的纖維纏繞復合容器的參數設計提供分析模型、方法及工程軟體。論文主要內容是： （ 1 ）對復合容器分析國內外研究的概述； （ 2 ）復合容器的幾何表徵方法及工藝中若干力學問題； （ 3 ）復合容器結構分析的物理和幾何非線性有限元列式及其纖維層的等效本構關系； （ 4 ）復合容器的破壞類別； （ 5 ） ansys程序的二次開發； （ 6 ）典型復合容器的數值討論。本論文工作將對工程界復合容器設計和分析工作者具有參考價值。 -
Pca model was set up based on the normal history data of the system to detect the sensor faults by comparing the projection on the residual subspace to which the real measurement vector and normal vector were projected
主成分分析法根據系統正常的歷史數據建立數理統計模型，通過傳感器實際測量數據與正常數據在故障子空間投影的比較，對傳感器的故障進行在線檢測。 -
The relationship between gdp and export of the prc ’ s province, cities, and autonomous regions is analysed in panel data set : gdp and export annul datafrom 1992 to 2004 in the prc ’ s province, cities, and autonomous regions. empiricalanalysis show that the fixed two panel model is better than other model, but exist theproblem of residual errors sequence correlation
同時利用中國內地省區市1992年至2004年的年度國內生產總值與對外出口貿易總額的面板數據做了大量實證分析，發現雙向固定效應模型比較適合此面板數據集，但是存在殘差序列相關的問題。 -
Do you agree with the residual acrylamide limits in cosmetics set by cosmetic ingredient review ( cir ) in the us that are 10 times that of china and the eu
貴會是否接受化妝品成份安全委員會所訂定的丙烯酰胺安全上限為歐盟及中國大陸所訂定有關標準的十倍？ -
Firstly, we connect the minimal continuous semi - flow with the minimal sets of its time - one map. secondly, by using the connection, we prove that the minimal continuous semi - flow is the minimal continuous flow if its time - one map is open, and for any minimal continuous semi - flow, there is an invariant residual set such that the restriction to the set is a minimal continuous flow
為此，我們首先建立了它與其時間1映射極小集的聯系；然後，利用這種聯系證明了：若時間1映射為開映射，則它是極小的連續流，並且一般地說來，對任意極小連續半流，存在不變的剩餘集，使得它在這不變集上的限制是極小的連續流。
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