loss ratio method 中文意思是什麼
loss ratio method
解釋
遞減比法-
Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。 -
Using the beam propagation method ( bpm ) simulation, we confirm that wide controllability of the branching ratio and low excess loss can be realized by this structure
用bpm方法模擬的結果表明，此結構實現了50 - 94的不對稱分支比，並且具有低的附加損耗的特點。 -
The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。 -
An example demonstrates the feasibility of this method. we also study the design of mean selection based on the minimum loss using taguchi. g method, present the concepts of the ratio of quality loss and effective off - center. at last we explore the design of mean selection based on the maximum profit in the process of bin packing and improve the old model
應用田口的質量損失理論，我們研究了基於損失最小的過程均值設計問題，提出了質量損失率及過程有效偏移的概念；然後以裝罐過程為例，探討了基於利潤最大化的過程均值設計，並改進了原有的裝罐模型。 -
This paper trice to find the cause of effective ness loss and to analyze it theoretically by adopting the ways of quantitative analysis and quantitative analysis by using the way of fault tree to carry out the qualitative analysis, it draws the logic charts by various elements that cause the loss of effectiveness and to make a faucet tree to find out the loss programs, then make a final analysis of the smallest element of the fault tree. the first problem is due to the over friction by exceeding permitted limits ; the second problem is due to the gear feather ' s low inteusity, this paper adopts the method of changing the trans mission ratio of the first gear and the width of the sixth gear of second shaft so as to solve the problems
本文採用定性和定量相結合的方法，利用失效樹進行定性分析，它通過對可能造成系統失效的各種因素，畫出邏輯框圖，從上到下繪成失效樹，找出失效譜，並對失效樹的全部最小割集進行分析，找出有可能的失效原因，再對其通過理論計算進行定量分析，由此發現第一個問題是由於離合器在極限狀況下的滑磨功超過其許用值造成的，第二個問題的原因是二軸六檔齒輪強度不足。 -
The simulation using the bi - directional beam propagation method proves that the demultiplexer can have very low insertion loss and high isolation ratio
藉由雙向光束傳播法來模擬此組件，結果顯示此解多任務器具有很低的插入損耗和高的隔離度。 -
The method make the loss of the relevant information decrease and make the recall ratio go up. 3. controlling of the anchor - depth can make the system work more efficiently not search anchor greedily
（ 3 ）研究了檢索中基於深度控制的鏈接過濾方法和下載控制方法，輔助新的相關信息資源的發現，使用戶可以對下載的信息量進行間接的控制，搜集到相關度更大的專題信息。
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