比降面積法 的英文怎麼說

中文拼音 [jiàngmiàn]
比降面積法 英文
slope area method
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • : 降動詞1. (投降) surrender; capitulate 2. (降伏) subdue; vanquish; tame
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  • 面積 : [數學] area
  1. In the course of working, , the plow will make use of the shuttling method so that it can dig alternately either on the left or on the right. compared to the unilateral plow, it can improve the productivity because it can help leave off the soil 、 take from the consumed energy and reduce the empty journey. to meet the requests above, we will use a remote cylinder with both a small cubage and double functions, approximately designing the plow to be columniform and symmetric. after the experiment for a period in the field, we found that the most frayed areas had happened at the places of both plow shank and share and at the same time the base of the remote cylinder had ruptured suddenly

    與單向犁相,其優點在於:耕地無開、閉壟,地表平整,低了耕后整地的能量消耗,減少了地頭的空行程,因而大大提高班次生產率。為了滿足犁體梭式作業的要求,我們採用了一隻小容雙作用的液壓油缸;同時對犁壁曲的形狀採用了近似圓柱形的對稱設計。但經過一段時間的田間試驗,我們發現:該犁犁胸部分的犁脛和犁鏵上的犁尖在工作中磨損較為嚴重;主犁梁和油缸缸體的連接部分(即油缸底座)突然發生了斷裂,造成整個犁體無正常工作。
  2. On this foundation the article inducts in detail the method which is based on the relative settlement of calculating unit area end support ( qb ) force at the same time considering the feature of pedestal pile ' s " arch effect " the article introduces conception of pile effective length and finally obtain t he formula of calculating man - made pipe with bulb - shaped axial carrying capacity. the article uses marc program to calculate and analyze foundation soil ' s stress and displacement and gets the change curve chart and the proportion that is shared by king - pipe side soil friction resistance and pipe end counterforce respectively. the article inducts the structure of pedestal in detail on the basis of generalizing pedestal application cases of many countries

    在此基礎上論文詳細歸納了以相對沉為依據確定單位端承力q _ b的計算方,並考慮擴底樁的「拱效應」特點引入了有效樁長的概念,最後結合公路規范推出了較實用的人工挖孔擴底樁軸向承載力計算公式。論文運用了marc程序對地基土的應力和位移進行了有限元數值計算分析,得到了地基土的應力和位移場的變化曲線和在加載過程中樁側土摩阻力和樁端反力各自所承擔的例;本文還在總結各國挖孔擴底樁應用情況的基礎上就擴底樁的構造進行了詳細的歸納。
  3. The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased

    本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方進行了優化,結果表明:採用普通工藝焊接時,葉片焊后殘余拉應力出現在焊縫及其附近區域,並且在葉片出水邊的熔合線附近(危險區域)出現了峰值;在採用優化的分段焊時,先焊兩端后焊中間的方可以低葉片危險區域的焊接殘余拉應力峰值,低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱成正,與冷卻成反,並且危險區域的殘余應力隨加熱區域的增大呈先低后升高的趨勢。
  4. For 2h, the osc and special surface area decreased sharply, meaning a bad thermal stability. the osc and special surface area of the samples prepared by precipitation keep very well after aged, exhibiting a promising thermal resistance. while the samples prepared by dipping method have a much more stable osc at different temperature, that is, they have a good thermal stability

    研究表明,採用溶膠?凝膠制備的樣品在老化前具有最大的儲氧量和,但經高溫老化后,其儲氧量急劇下,表現出很差的抗高溫老化性能;採用沉澱制備的樣品在老化前後,其儲氧量和幅最小,有良好的高溫熱穩定性能;採用浸漬制備的樣品不管老化與否,其儲氧量並不隨著儲氧溫度的改變而大起大落,表現出較好的熱穩定性。
  5. The factors include antecedent precipitation of low flow period and status of karst basins ( such as lithology, landform, drainage area, drainage density, length and ratio of demotion of main river and so on. ). based on the former studies, integrated the conventional statistic methods, the technique of anns is applied in this paper for researching the law of the low flow of karst basins in guizhou altiplano

    影響喀斯特流域枯水徑流的因素異常復雜,其影響因素主要有枯季前期水量和巖性、地貌、流域、河網密度、主河道長度及其等流域下墊狀況。本文在前人研究的基礎上,採用人工神經網路技術,結合傳統的統計方,研究貴州高原上喀斯特流域的枯水徑流規律。
  6. The grade composite, road performance and its mechanism are systemically studied. 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades. then the grade is verified and the relation between the grade and pore rate is studied statistically, the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content, thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper, it shows : asphalt paste, as well as the coarse aggregate skeleton, is essential to the mechanics of ogfc

    在分析各國ogfc級配的基礎上,運用礦料體進行ogfc級配設計,用正交實驗對礦料級配進行了優化設計,運用數理統計方分析礦料級配和孔隙率之間的關系,並回歸出礦料關鍵篩孔通過率與ogfc骨架空隙結構關系的數學方程,進而提出了ogfc的合理級配;通過對不同孔隙率典型級配混合料的性能研究,綜合力學和功能性能,得出了ogfc的合理孔隙率范圍:針對高速公路層對ogfc力學性能方的要求,本文從瀝青膠結材料、纖維穩定劑兩方對ogfc的性能進行改善:通過sbs和橡膠粉復合改性的方開發出了適合ogfc的高粘度改性瀝青,摻加聚合物纖維,提高ogfc的最佳瀝青用量,進而改善了混合料的高溫性能和抗水損害性能,優化設計出能滿足高速公路路用性能,車轍動穩定度達5000次/ mm以上,動融劈裂強度90 ,透水系數31ml / s ,並具有防滑噪功能的開級配瀝青磨耗層( ogfc )混合料。
  7. With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability

    在渠道縱橫斷優化方,本文在利用已經較成熟的縱橫斷優化理論的基礎上,提出以工程總費用最小為目標函數,以渠道縱坡i為控制變量,以渠道不沖不淤流速及灌區允許地為約束條件,通過縱橫斷聯動優化的方得到渠道的最佳工程可行的斷參數。另外,針對部分地區的取土困難的狀況,本文採用計算渠道工程土方量,從而大大提高了土方量的估算精度,有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方及原理,最後應用本系統對泰州市翟家村機電灌區進行規劃設計,運行結果證明其操作較簡便,界友好,運行速度快,規劃成果合理,基本達到了系統預定的要求,具備較強的實用性。
  8. The paper compares some algorithms on rs decoding, makes improvements based on the me algorithm, removes the modifying step in decoding truncate rs code, corrects unsuitable statements in the related papers, and parameterizes the rs decoding module, reducing its area by 20 %. the paper overcomes the signal integration problem in multi - clock design, greatly lowers the phase jitter without area increase, introduces pll to adjust rate for the first time, and parameterizes the module

    本文較了實現rs解碼的幾種演算,並在me演算基礎上進行改進,創造性的去掉了縮短碼解碼中的校正環節,糾正了有關論文中的不當論述,並將rs解碼模塊進行了參數化設計,同時也將rs解碼的規模縮小了20 ;克服了多時鐘設計中的信號完整性難題,在沒有增加模塊的條件下,大幅低數據的相位摘要抖動,首次引入鎖相環來調整速率。
  9. Conclusions as following have got through test study : ( 1 ) when impact compaction technology is applied to treat collapsible loess subgrade, the effect depth may be treated generally can not override 80 cm and impact compaction pass is optimum at 30 times. ( 2 ) for stratified impact compaction of subgrade, when compactness of each level reaches codeslstandards loose laying depth of 80 cm fits 40 impact compaction pass is the optimum combination of subgrade construction. when average compactness in each level reaches codeslstandards loose laying depth of 80 cm fits 30 impact compaction pass is the optimum combination o ( 3 ) the quality control method may request impact compaction pass as the main control index and at the same time the final division settlement is less than 10 % of total settlement as large area subgrade is constructed

    通過試驗研究主要得出如下認識:沖擊壓實技術處理濕陷性黃土地基時,其有效處理深度一般不超過80cm ,沖壓遍數以30遍左右為宜;對路基分層沖壓,在要求土體中各點壓實度均達到規范要求時,路基沖壓最佳組合為虛鋪厚度80cm 、沖壓40遍;在只要求土體平均壓實度達到規范要求時,路基沖壓最佳組合為虛鋪厚度80cm 、沖壓30遍;大施工時,質量控制方可按照在以沖壓遍數作為主要控制指標的同時,要求最後10遍分計沉量小於累計沉量10 ;在施工單位自己購置沖擊壓實機情況下,與傳統施工相較,沖擊壓實技術是一種既能節約資金又能大量縮短工期的施工方
  10. Standard test method for open - channel flow measurement of water indirectly by slope - area method

    使用比降面積法迂迴測量明渠水流流量的標準試驗方
  11. 26th ieee asilomar conference on signals, systems, and computers, pacific grove, ca, usa, october 26 - 28, 1992, pp. 391 - 395. 14 oklobdzija v. an algorithmic and novel design of a leading zero detector circuit : comparison with logic synthesis. ieee transactions on vlsi systems, 1993, 2 : 124 - 128

    而另一方,該演算與目前國際上其它類似演算具有和功耗上的明顯優勢,根據實驗結果,採用該演算所實現的電路採用以往類似演算所實現的電路減少了27 ,功耗則低了28 ,因此特別適合在高性能低功耗的浮點加減運算演算中採用。
  12. Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result

    西安理工大學碩士學位論文在水平地震作用下,並考慮風荷載組合,分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系,通過改變結構參數,運用空間有限元方,進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ,以及「構件內力」 。結果表明:在等原則下,異型柱代換矩形柱后,結構剛度增大,側向位移明顯減小,地震反應力略有增加,框架柱軸壓最大增幅小於8 % ,結構整體抗震性能有所提高;當異型柱肢長肢厚小於等於3 . 6時,結構有利於抗震;水平地震作用力與整體坐標夾角為0度時,結構地震作用效應較大,屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐,側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小,構件內力增大適中,是一種抗震性能優越的結構體系:在抗震設防烈度較高地區( 8度)和抗震不利的建築場地( m類場地) ,採用異型柱結構體系時,應盡可能減輕結構自重,低地震作用力;分別採用「振型分解反應譜」和「時程分析」進行地震作用計算,兩種方所得結果基本一致。
  13. Finally we conducts rig test with fuzzy control system. the test results indicate fuzzy control system is able to lower intensity of body vibration and the national standard on the vibration eligible class of the engine is met. it is demonstrated that the mathematical model and fuzzy control arithmetic presented by the paper are accurate and reliable, which make an active seek and research on control strategy of engine vibration

    以matlab + simulink為模擬工具,設計了模糊控制系統和被動控制系統兩類不同的模擬模型,並進行了對模擬和結果分析,在此基礎上,設計開發了以80c196kc單片機為主控器件的模糊控制系統,進行了控制系統的軟、硬體設計,最後對所設計的模糊控制系統進行了臺架實驗,實驗結果表明模糊控制系統能有效地低了內燃機整機振動的強度,達到了國標規定的合格級,證明了本文建立的數學模型和模糊控制演算是正確可行的,在內燃機振動控制策略方作了一個極的探索和研究。
  14. The text choose fenjin countryside of changchun as the typical district, choose rs and gis as the technological platform, utilize serial statistical data of land use from 1990 to 2002, remote sensing image and actual census data, adopt arc and statistical analysis method to analyze the change of land use structure in the process of urbanization, achieve the pace, range, trend and shift matrix of land use change ; at the same time analyzing economy, social and ecological benefit. the result shows : the agricultural area is reduced year by year, construction area is increased gradually, the social economic benefits are obviously improved, but the ecological benefits of the land drop to some extent. the urbanization process is developing quickly but it sacrifices the environments

    本文選擇長春市寬城區奮進鄉為典型區,以rs和gis為技術平臺,利用1990 - 2002年的土地利用系列統計資料、遙感影像解譯數據以及實際調查數據,採用arc方和統計分析等方對城市化進程中城市近郊的土地利用結構變化進行分析,獲得了土地利用變化的速度、幅度、趨勢及轉移矩陣;同時將同一時段奮進鄉的經濟、社會、生態效益的變化與土地利用變化進行對分析,結果表明:農用地逐年減少,建設用地逐漸增多,社會經濟效益明顯提高,但土地的生態效益卻有所下
  15. With the design and realization of the servo system of the airborne ( shipborne ) target ' s real - value measurement equipment as the background, and with a view to the especial problems which have to be faced with in servo control system ( that is the bad condition, contradiction between the weight and the power and the disturbance of the carrier ), it is difficult to reach the high stabilization precision and the tracking precision by traditional control technique, so by means of refer to a great deal of references and base on the summary of the domestic and overseas designing schemes, control technique adapted to the airborne ( shipborne ) equipment is brought forward. theoretical analysis and researches are presented in this dissertation and are applied to the practical design and realization of the airborne ( shipborne ) real - value measurement servo controller

    本文以某工程研製項目機(艦)載目標真值測量設備的伺服系統研究和實現為依託,著眼于機(艦)載測量設備伺服系統所必須對的與陸基設備相的特殊問題(即環境條件更為惡劣、體和功耗的矛盾及載體擾動帶來的精度低等) ,提出傳統的控制方難以使系統達到高的穩定精度和跟蹤精度,因此,通過查閱大量的國內外文獻及總結了國內外光電穩定與跟蹤系統設計方案的基礎上,提出了適用於機(艦)載伺服系統的控制方,從理論上進行了分析和研究,並將之應用到具體的研究與實現中。
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