自由變項 的英文怎麼說
中文拼音 [zìyóubiànxiàng]
自由變項
英文
free variable-
Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義However applied modeling of the mineral processing plant is a complicate and very difficult work, because the relativity of production data, complexity of the non - linear modeling and the absence of technical parameter quantum data of mineral processing plant, which should be used as independent variable of network and so on
然而，由於生產數據的相關性、非線性建模本身的復雜性和應該作為網路自變量的選廠工藝參數量化數據的缺乏等，建立實用的選廠數學模型，是一項復雜和難度較大的工作。Based on the idea of subordinate meshes, we bring forward a new method of weighted volume which is used for constructing linear interpolation polynomials. besides, according to the eno interpolation on unstructured grids, a class of linear interpolation polynomial is developed on irregular quadrilateral grids and allows very small oscillation. program in fortran is given for a remapping algorithm developed by caiqingdong
另外，根據非結構網格的eno插值的思想，構造了四邊形網格網眼內的線性插值多項式，由於利用其插值點自適應選取的特性，在物理量變化劇烈區域選取最光滑區域的點來插值，雖然不能保持單調性，但只允許出現非常小的振蕩。This declaration applies to all links and references which have been included within the authors own internet site as well as to entries made by others in those guest books, discussion forums and mailing lists which have been established by the author
因此作者在此聲明，將于所有跟本網站向鏈接後有變更的網頁保持距離。此項聲明適用於所有本網站所提供的網路連接及由作者自己設置的留言本內他人的留言，討論及電子郵件列表。To allow a wider choice to prospective home buyers, to make better use of public resources and to respond more effectively to short - term fluctuations in housing demand, the government has embarked on a partial shift in the provision of housing assistance from the conventional bricks and mortar approach to the use of housing loans to purchase flats in the private sector
政府已略為修訂提供資助房屋的方式，由以往直接興建資助自置居所，改為減建這類單位，為部分置業人士提供貸款購買私人樓宇。這項轉變除了使有意置業的市民有較多選擇外，還可更有效地運用公營資源，對房屋需求的短期波動作出迅速的回應。Although a trust can be a verbal agreement and implied by law, i. e., your words and actions are legally acknowledged by previous, similar precedents, it is far more common for a trust to be established by way of a written document called either a deed of trust or declaration of trust
因此，銀行收到的是來自於受託方對于其違約情況下賠償能力的擔保（通過變賣部分房地產） ，而不是將計畫開發區域中的一塊地皮作為擔保。在工程項目進行中，由於土地價值的浮動，每塊地皮價格是可變的。The dissertation refers to comparatively full literatures in the field of vsc, and the development history and characteristics of vsc are summarized, and the elementary concepts, elementary definitions, elementary properties, elementary principles and design methods are particularly introduced, and the causes of the chattering phenomenon are systematically analysed, and the study status of the chattering phenomenon and the main methods to eliminate the chattering are elaborated. for the deficiencies of traditionary methods, three improved methods are developed, which are improved exponent reaching law solution, variable boundary layer solution and the solution by adding an auxiliary continuous control term. for uncertain linear systems, an adaptive fuzzy integral variable structure control stategy ( afivsc ) is put forward to eliminate the chattering around the sliding plane, which introduces fuzzy logic to soften the non - linear discontinuous sig nal in the control variable and utilizes adaptive theory to adjust output membership function according to how much the uncertainty of the system is
比較全面地查閱了關于變結構控制理論的文獻，總結了滑模變結構控制的發展歷史和特點，詳細介紹了變結構控制的基本概念、基本定義、基本性質、基本原理以及設計方法；系統分析了變結構控制系統抖振產生的機理，並闡述了國內外目前對抖振問題的研究現狀以及消除抖振的主要方法；針對傳統抑制和消除抖振方法的不足，改進了傳統方法，得到了三種新的消除抖振的方法? ?即改進的指數趨近律法、可變邊界層法和附加連續項法；針對不確定性線性系統，在變結構控制策略中引入模糊邏輯和自適應理論來消除滑動平面上的抖振，提出了一種自適應模糊積分變結構控制方案（ afivsc ） ，利用模糊邏輯來柔化控制量中非線性不連續部分，採用自適應理論，根據系統不確定性大小在線調整模糊輸出量的隸屬函數，另外，鑒于模糊控制本質上是有靜差的，所以本文選擇了帶積分項的切換函數，由於積分項的存在使系統較正為無靜差系統。With the development of educational measurement theory and computer network technology, there are some underlying changes in educational examination system in china, from traditional fixed testing based on classical test theory ( ctt ) to computerized adaptive testing ( cat ) based on item response theory ( irt )
隨著教育測量理論和計算機網路技術的發展，中國的教育考試也正在發生著悄悄的變化，由傳統的基於經典測驗理論（ ctt ）的固定題目、同一試卷的考試向基於項目反應理論（ irt ）的計算機化自適應測試（ cat ）的方向轉軌。It is the researchful purpose of this paper that the methods of appraising the existing structural reliability basing on own information are found, which will impel the methods of appraising the existing structural develop from applied methods to probability methods. the contents of this paper have mainly four, including : firstly, the normal value of permanent load in the existing structure is ascertained by the way that is called bayes - small capacity, which considers the dates of design and the road - test dates. secondly, by introducing the random variable that is statistical ambiguity, the statistics of loading and resistance of existing structure are researched
本文研究目的是針對現有結構的特點，建立基於自身信息的現有結構可靠性的實用評定方法，推動我國的現有結構可靠性鑒定方法由實用鑒定法向概率鑒定法發展，主要研究內容包括四個方面：一、結合結構原設計數據和現場抽樣實測數據，研究了恆載標準值的統計推斷方法，提出bayes小樣本統計推斷方法；二、利用統計不定性隨機變量，結合現有結構的特點，提出荷載、抗力變異性的小樣本統計推斷方法；三、分析了現有結構抗力變異性的主要影響因素，並利用實測數據進行了實例分析；四、針對現有結構自身的荷載、抗力統計特性，研究了現有結構承載力的校核表達式，對恆載、抗力分項系數提出修訂建議，建立了基於自身信息的現有結構可靠性實用評定方法。Sets a list of custom strings that the output cache will use to vary the user control
設置要由輸出緩存用來改變用戶控制項的自定義字元串列表。As goldfeld - quandt test can only be applied to one independent variable, it is generalized in the second section. it shows that, in multivariate situation, the data can be arranged according to their principle components. but there should be a premise : the disturbances of the lower data group should have equal variance and those of the higher data group have the same variance
由於戈德菲爾德-匡特檢驗方法只適用於一個自變量，因此，本文對g - q檢驗進行了推廣，說明在多變量的情況下，可以利用主成分對樣本數據進行排序，並強調使用戈德菲爾德-匡特檢驗的前提：低樣本組各觀察值的擾動項必須具有同方差性；高樣本組各觀察值的擾動項也必須具有同方差性，否則，檢驗的結果可能是錯誤的。This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton
當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。Owner earnings gains basically ought to be used at capital of compensatory and special maintenance, also can set according to what owner violates this ordinance the 65th times greatly, agree without owner congress, do sth without authorization of property management company changes property management to use the utility of the room, by administration of estate of government of people of place of prefectural class above director branch instructs deadline to correct, give a warning, be in 10 thousand yuan of above 100 thousand yuan of the following amerce ; have profit, earnings gains is used within property management section property is common place, common the maintenance of facilities facilities, conserve, odd part is used according to the decision of owner congress
業主所得收益應當主要用於補充專項維修資金，也可以按照業主大第六十五條違反本條例的規定，未經業主大會同意，物業治理企業擅自改變物業治理用房的用途的，由縣級以上地方人民政府房地產行政主管部門責令限期改正，給予警告，並處1萬元以上10萬元以下的罰款；有收益的，所得收益用於物業治理區域內物業共用部位、共用設施設備的維修、養護，剩餘部分按照業主大會的決定使用。Changes in the formal rules include legislative changes, such as the passage of a new statute, judicial changes that result from court decisions altering the common law, regulatory rule changes, which alter the rules by which other rules are made
正是規則的變化包括法律的變化，比如通過了一項新的法令，司法的變化來自於法庭的決定，那改變了普通法，管理規則的變化改變了其他由此而定的規則。Changes in the formal rules may come about as a result of legislative changes such as the passage of a new statute ; judicial changes stemming from court decisions that alter the common law ; regulatory rule changes enacted by regulatory agencies ; and constitutional rule changes that alter the rules by which other rules are made
正式規則的變化可能是法律變化的結果，比如通過了一項新的法令；司法的變化源自於法庭的決定，那將改變普通法；管理規則的變化由管理機構實施；憲法規則的變化會制定其他規則。Moreover, while changing link state of equipments between power line, generatrix, transformer and generator which are manipulated by jiangsu province ' s control center and bidding and retreating correlated relay protector and automatic safty safeguard, project company may obey related regulations of schedule discipline
項目公司在改變由江蘇中調調度的線路、母線、變壓器、發電機之間的設備連接狀態和投退有關繼電保護和安全自動裝置時，應服從調度規程的有關規定。分享友人