distance to failure 中文意思是什麼
distance to failure
解釋
爆破里程-
The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation
小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性 -
Through the excel program, and combining the inside and outside environment of the excavation and stress field and displace field, the data of stress and displacement of points are analyzed in variable depth and load grade and terminal state. the spss software has been applied to the statistics of geometry parameter of failure surface, and the failure surface criterion is created by the linearity regression from d ( the longest horizontal distance between the failure surface and the side face of the slope ), ho ( the depth
此外，應用spss軟體對試驗破壞滑弧的幾何參數進行統計分析，並對滑弧的最大水平深入距離d及d處至坑底的高度h _ 0結合各水理指標進行多元線性回歸，建立滑面的判據，並對此判據進行修正，且用實際工程對其進行評價，通過反算已知滑面的c 、值，表明邊界條件對破壞形式有極大的干擾作用，所直接看到的破壞類型土體不是發生整體滑移破壞，而是剝落式的潰屈破壞。 -
The rational reinforcing distance is very important to modes of failure
合理的加固距離對梁的破壞形式影響很大。 -
Based on tanner graph, the representation and construction of ldpc codes are addressed, and the two decoding algorithm for ldpc codes, i. e, bit - flipping algorithm and sum - product algorithm, are discussed. from two aspects - minimum distance and the failure of independence assumption, the impacts of cycles to the performance of ldpc codes are analyzed. 2
基於tanner圖模型，詳細介紹了ldpc碼的表示和構造；介紹了ldpc碼的硬判決譯碼（比特翻轉演算法）和軟判決迭代譯碼（和積演算法） ；從最小距離和獨立性假設失效兩個方面分析了環的存在對ldpc碼譯碼性能的影響； 2 -
In this paper, systematic numerical test have been carried out to study the stability of surrounding rock mass with different distribution of weak interbed, different distance between weak interbed and limit of excavation, different thickness of weak interbed, in the different confining coefficient and representational surrounding rock mass graded ii, iii, iv. all of the numerical modeling is plain - strain type with elastic - plastic constitutive law and mohor - coulomb failure criterion, through the integrated numerical analysis program final. plentiful numerical test results have been drawn via analyse the deformation, tensile stress region, plastic region of surrounding rock and the stress status of shot - crete
大量的工程實踐表明，軟弱夾層對地下洞室圍巖穩定性的影響有著決定性的作用，本文以大型數值模擬分析系統final為平臺，採用彈塑性應力應變關系和m - c屈服準則建立平面應變問題有限元模型，對軟弱夾層的分佈部位、分佈距離、軟弱夾層的厚度對圍巖穩定性的影響以及在具有不同側壓力系數的地應力場中和、 、類代表性圍巖中軟弱夾層對圍巖穩定性的影響進行了系統的數值試驗，研究得出了軟弱夾層對圍巖位移、拉應力區、塑性區以及噴射混凝土層內力等影響豐富的量化成果，以便直接為工程設計人員提供參考。 -
The study quality of the network learner is the key point of the distance education success or failure. how to solve the question in distance education for guarantee the distance network learner ' s study quality
遠程網路學習者的學習質量好壞是遠程網路教育成敗的關鍵所在，如何解決遠程網路教育存在的這一問題，確保遠程網路學習者的學習質量 -
Under the condition of applied technology based on internet combined with intellective computational ways and traditional marine condition monitoring, we can construct a new failure diagnosis system ( to develop a distance condition monitoring and failure diagnosis system for main mechanic equipments ) in dredger. it can offer timely credible technical guidance and steps to dredging technician. it is satisfied with the need of dredging security, equipments " condition monitoring and failure diagnosis, maintenance decision of the shipping and its base
將基於internet的應用技術、智能計算方法與傳統的船舶狀態監測與故障診斷技術相結合，在具有首沖功能的300方自航耙吸挖泥船上構造一種全新的故障診斷系統，即開發一套基於網路的挖泥船主要機械設備遠程狀態監測和故障診斷系統，為疏浚作業的技術人員提供及時可靠的技術指導和處理措施，滿足疏浚作業安全、設備狀態監測和故障診斷、實船和基地管理和維修決策的需求，提高設備利用率和管理水平。
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