極限力學性質 的英文怎麼說
中文拼音 [jíxiànlìxuéxìngzhí]
極限力學性質
英文
ultimate mechanical property- 極 : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 質 : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
- 極限 : 1 (最高的限度) the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
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The research studies affect of the hydraulic characteristic of storage equipment to water quality and put forward hygienical limit hrt to storage equipment by mathematics model
研究蓄水裝置水力特性對水質的影響,應用數學模型對蓄水裝置提出了衛生學極限流動時間和停留時間。According to the geological data which was gained by exploration investigation, establishing a geological model which can reflect rock mass characteristics ; with analyzing the internal and exterior factors synthetically, the deformation and possible failure mechanism and mode of the cut slopes was confirmed which combines with stereoic projection and other techniques ; the stabilities of the 14 high slopes are estimated synthetically by applicable design codes and guidelines. with the estimate result and some other analysis methods, the rock mass mechanical parameters of slope are identified ; as a results, 14 high slopes fall into 4 categories based on rockmass characteristics and discontinuities. the stability and deformation of some typical slopes was analyzed with distinct element method by udec ; the safety factor of some dangerous slopes are calculated by rigid limiting equilibrium method for comparison
首先著重研究影響邊坡穩定性的內在因素,主要是通過地質勘探、測量、現場觀測等手段取得研究區地質體的基礎地質資料,建立起能夠反映地質體結構特徵的地質模型;隨后綜合分析潛在的內外部影響因素,並結合赤平投影對邊坡可能的失穩模式或破壞機製作出判斷;運用已有巖體質量分類方法對沿線14個高陡邊坡穩定性進行初步的評價,並結合試驗研究、經驗判斷、工程類比等手段確定了坡體的巖體力學參數;根據穩定性初步評價結果將研究區14個高陡邊坡按開挖方式分為4大類,並利用離散元程序udec對各類典型高陡邊坡進行了穩定性計算分析;對潛在危險邊坡利用剛體極限平衡法求出了不同工況下的安全系數。Finally, this paper set up the substitute model between the new technology and the old one and studied characteristic of the diffusion system applied system dynamic method such as the stable points and phase portrait and hopf bifurcation and limit cycle of it. then studied the probability distribution function of them, and the probabilistic equation of this system
最後建立了四川大學碩士畢業論文創新技術和舊技術的技術更替模型,並運用系統動力學的方法分析了擴散系統在其不動點附近的變化特徵和相圖以及改進系統的hopf分支、極限環等性質,討論了新舊技術的概率分佈,並且將動力學方程轉化為概率方程進行分析。Based on the analysis of the stress distribution law in different districts around the self - closed and full - connected arch walling support roadway, the relationship among the limit equilibrium radius and the in - situ rock stress, the physico - mechanical properties and support parameters is obtained. the calculation formula of arch walling width design is put forward so as to provide a theoretical basis for the practical design of support
在分析自封閉全接觸碹體支護巷硐周圍不同區域應力分佈規律的基礎上,得出了圍巖極限平衡區半徑同巷硐所處的原巖應力,圍巖本身的物理力學性質及碹體支護參數間的相互關系,提出了設計碹體厚度的計算公式,為實際進行支護設計提供了理論依據。The coming of age of the postwar baby boom and an entry of women into the male - dominated job market have limited the opportunities of teen - agers who are already questioning the heavy personal sacrifices involved in climbing japan ' s rigid social ladder to good schools and jobs
戰后嬰兒潮一代的步入成年以及女性打入男性主導的勞動力市場使得青少年的發展機會變得極為有限,他們已經在不停地質疑為了爬上日本國內那通往優秀學校和體面工作的嚴酷的社會階梯而做出的巨大的個人犧牲。The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels
實驗結果顯示:鋼渣摻合料能顯著減緩水泥漿體水化速率,降低砂漿的水化溫升並延遲最高溫升時間;補償混凝土收縮,提高混凝土密實度,加強纖維與水泥石的界面粘結,增強混凝土力學性能,但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應,增韌鋼渣防滲抗裂混凝土;增加混凝土的破壞極限能,極大提高混凝土抗彎曲能力和韌性指數,改善混凝土脆性。At first, the mechanical model of joint is discussed, and the constitutive relation of the rough joint, especially the bolt - supported joint, is given. then bedding slide of bedding stratified rock slope is studied adopting limit equilibrium method, and a formula of stability is brought forward. at last, the bedding stratified rock slope ' s buckling deformation and failure mechanism and its evaluating method of stability is investigated, a corresponding mechanics model is established, then detail research to this failure mode is made in theory combining the energy law and elastic stability theory of plate and beam, and an analytical solution of the yielding curve is educed from this model
文中首先對結構面的力學模型進行了一定的探討,提出了粗糙結構面尤其是加錨結構面的本構關系;然後採用極限平衡法,研究了順向層狀巖質邊坡的順層滑動失穩,提出了其穩定性計算公式;最後,結合能量定律和彈性板梁穩定理論,探討了工程中常見的順向層狀巖體邊坡潰屈失穩時的破壞機理、變形規律和穩定性定量評價方法,建立了相應的力學模型,求出了其相應的解析解,並提出了臨界坡長與最大彎曲位置的確定方法。Based ongeological condition and mechanics propertie s of open - pit footwall slope rock in xinqiaopyrite mine, the stopes stability is analysed by calculation of double slide face typefailure mode with limit equ ilibrium theory
基於對新橋礦露採下盤邊坡的地質概況和巖石物理力學性質分析,採用極限平衡理論,通過雙滑面型破壞模式的計算,對邊坡作了穩定性分析。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。This formula can be reduced to the classic bending stiffness formula with the special conditions, and explain why the bending stiffness of swnt can not be obtained by classic formula
該公式能在極限條件下很好的還原為經典彈性力學中的抗彎剛度公式,並清楚地反映單壁碳納米管抗彎剛度不能由經典彈性力學抗彎剛度公式計算的本質原因。For universities in the west regions of china such as northwest normal university which is in a geographically disadvantaged position and has limited external resources, for the purpose of further deepening the reform of inner management system, it is their urgent task to find ways to strengthen the inner management system, and to build up a scientific motivation mechanism which is advantageous for bringing up and using talents, so as to let the teachers take full initiatives and to use their creative power to the fullest extent, and to raise the teaching quality and efficiency of the university and to ensure the vigorous and sustainable development of the university
對于地處區域劣勢、外部資源有限的西部高校如西北師范大學,如何加強內部管理,建立一套科學的、有利於人才培養和使用的激勵機制,充分調動廣大教師的積極性,發揮他們的創造力,提高學校的辦學質量和效益,使學校的發展充滿活力和后勁,已成為高校進一步深化內部管理改革所面臨的迫切問題。本人長期從事高校人事管理工作,通過對高等教育管理理論的學習,認為將激勵理論與高校管理實踐相結合,進行高校教師激勵機制的研究有非常重要的現實意義。It studied the engineering geology condition of the heigou mine - field of jisco. by the abundance of basic data with investigates and lab experiments, it estimated and analyzed the stability of the side slope of the heigou mine - field with many research methods that included " the ultimate balance ", " the discrete cell " and " the fea ". besides these, it gave same advice about analogous engineering in order to offer certain evidence for the later management of heigou mine - field and for the engineering blasting design
本文以工程地質學、巖石力學理論為基礎,針對黑溝礦區工業場地邊坡特殊的工程地質條件進行研究,在通過現場調查、實驗室試驗等手段獲得大量基礎資料的前提下,對黑溝礦區工業場地的邊坡,採用極限平衡法、離散單元法、三維彈性有限元法等多種方法進行了穩定性評價及分析,並提出了相應的工程措施建議,為今後黑溝礦區工業場地邊坡管理及大爆破設計等提供了一定的依據。At the same time, a series of development trend in organization structure innovation under the information environment has been put forward : flat model is the basis of organization structure optimization ; flexibility not only is beneficial to organization creation, innovation and accelerating reaction speed, but also strengthens organization ' s control centripetal force during the process of being operated continuously. it has rapid adjusting ability in time according to unexpected results of predictable change ; networking can not only decrease internal management cost and realize integration between supply chain and sale chain in worldwide, but also realize enterprise " s completely authorized managemen in order to promote substantial leap in enterprise economic benefit ; virtual model is centralizing limited resources on high additional value function and making low additional value virtual in order that the largest resource support can be obtained in the lowest cost and the whole organization is operated in the most effective way for adapting to market " s rapid change with high elasticity ; creating learning pattern in organization makes enterprise expand the width and depth of information being exchanged with the outer so as to keep enterprise in an unassailable position
提出信息化環境下組織結構創新的一系列發展趨勢:扁平化是組織結構優化的基礎;柔性化既有利於組織的創造、革新、加快反應速度,又能使組織在不斷磨合中加強控制的向心力,具有適時根據可預期的變化的意外結果迅速調整的能力;網路化不僅減少了內部管理成本、實現了企業全世界范圍內供應鏈與銷售環節的整合,而且實現了企業充分授權式的管理,極大地促進了企業經濟效益,實現質的飛躍;虛擬化是將有限的資源集中在附加值高的功能上,而將附加值低的功能虛擬化,以最小的代價獲得最大的資源支持,從而使整個組織以最有效的方式運轉,以高彈性化來適應市場的快速變化;創建學習型組織,使企業拓展了與外界進行信息交流的廣度和深度,使企業立於不敗之地。分享友人