趨勢擬合 的英文怎麼說

中文拼音 [qūshìnǐgě]
趨勢擬合 英文
trend fitting
  • 趨 : 動詞1. （快走） hasten; hurry along 2. （向某個方向發展; 趨向） tend towards; tend to become
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 擬 : 動詞1. （設計; 起草） draw up; draft 2. （打算; 想要） intend; plan 3. （模仿） imitate
  • 合 : 合量詞（容量單位） ge, a unit of dry measure for grain （=1 decilitre）
  • 趨勢 : trend; tendency; drift; current; tide
  1. The method of modified simplex was applied to optimize the models, and the fitting results show that liu - logistic model was more suitable than logistic model to the actual growth trend of form. taxus chinensis var. mairei population, and the highest growth rate of basal area was the tenth age class, namely the phase when breast diameter was 68 ~ 76 cm

    以胸高斷面積代替種群生物量，分別採用logistic常規模型及劉金福提出的logistic改進模型對南方紅豆杉種群的增長動態進行研究，運用改進單純形法對模型進行優化，擬合結果表明改進模型比logistic常規模型更符合南方紅豆杉種群的增長趨勢，南方紅豆杉種群的最大增長速度出現在第10齡級，即胸徑為68 76cm時期。
  2. We use integrated research approach combining studies of ecosystem processes, remote sensing, gis, and computer modeling, to analyze and quantify ecosystem dynamics of major biomes of china in the context of global change. our researches are multidisciplinary, and focusing on terrestrial ecosystem processes at multiple - scales

    以陸地生態系統學為指導學科，綜合多尺度生態系統過程檢測與分析、遙感和gis技術應用、計算機模型模擬，研究和預測全球變化背景下區域生態系統結構及其功能的變化趨勢。
  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面進行了優化，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法可以降低葉片危險區域的焊接殘余拉應力峰值，降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比，與冷卻面積成反比，並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。
  4. The content of the study as follow : 1 to choice the ship form, mainly ship ' s overall size ; draft, according to design of shanghai deep - water port and development of container ; 2. to deside the date of width ; depth ; path ; tract and sinkage through simulator tests ; 3. to replenish and modify some date for channel design to very large container vessels in " design code of general layout for sea port " 4. to study ship ' s turning area ; ship ' s stop distance the new and special content of the study as follow : 1. statistics of path at the channel given by difference operators with the affections certain wind. currents. seas and other influences shows the path really needed under certain condition

    並可在各類航道和水域的通航安全評估及操船方法，航跡帶寬度，航道寬度，航跡帶分佈，船舶各種航行狀態時的下沉量研究中應用。本課題研究的內容： （ 1 ）根據洋山深水港設計規劃和集裝箱船舶的發展趨勢，通過研究、分析、比較，選擇最合適的船型，尤其是船舶主尺度和船舶吃水。 （ 2 ）在大量模擬研究情況下，得出進港航道所需的航道寬度和深度。
  5. From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program

    針對加熱彎管過程的受力和變形特點，採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分，並對接觸單元採用柔體-柔體的處理方法，將溫度場作為體載荷處理，建立了符合實際的加熱彎管問題數值模擬力學模型：在此基礎上，應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究，獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。
  6. We conclude that the conjunction intensity between the platform and piles has a prominent impact on the deformation on the surface and there exists the " curtain effect " of the pile that weakens the slide tendency to the sea. it is confirmed the most disadvantageous load cases

    通過數值模擬得到以下結論，承臺與樁頂連結對碼頭頂面的側向位移影響顯著；存在樁的「遮簾作用」 ，它在一定程度上弱化了岸坡土體向海方向的位移趨勢；確定出對碼頭穩定性最不利的工況荷載組合。
  7. Based on the basic analysis of the structure and power elements of the hybrid vehicle, this thesis presents a powertrain system with a metal pushing belt cvt, aiming to the development status and trend of the hybrid vehicle technology in our country. a rational control strategy and its work mode of this powertrain system are determined, and correlative parameters such as the engine power, the starting torque, and the differential ratio, the rated power and torque of the motor, and the ratio of the torque synthesizer are systematically designed for the changan star 6350b. at the same time, the design of these parameters is considered as the base of the simulation of the motor control system in next step

    在對混合動力汽車的結構型式和動力元件進行基礎性理論分析后，針對我國汽車技術發展現狀和混合動力汽車技術的發展趨勢，設計了一種基於金屬帶式無級自動變速器cvt混合動力汽車動力傳動系統方案，根據該傳動系統方案制定了比較合理的控制策略和工作模式，並針對長安之星6350b設計了發動機功率和起始轉矩、主減速比、電機的額定功率和轉矩、轉矩合成器速比等相關參數，為下一步的電機控制系統模擬實驗打下基礎。
  8. 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 。
  9. The first introduced basis concept fundamentals and development of reconnaissance and jam for communication. the second present fundamentals of reconnaissance for communication ; simulink simulation models ; reconnaissance for communication federate design. the models include : simulation models for communication ew panoramic scanning receiver, surveillance analyses receiver, multichannel - fft receiver

    本文主要分三部分，首先介紹了通信偵察和通信干擾的基本概念及發展趨勢;第二部分介紹了通信偵察的基本原理、 simulink模擬模型以及通信偵察邦元設計，主要包括全景搜索接收機、通道化接收機;第三部分介紹了通信干擾的基本原理、 simulink模擬模型以及通信干擾邦元設計，結合通信收發邦元、測向邦元，給出了干擾效果。
  10. The whole thesis was made up of seven parts. the first part provided the background, significance and aims of this research ; the second part briefly reviewed the progress and the trend of the researches about the relative fields at home and abroad, then concluded that the present researches were mainly focusing on mineral cities and the qualitative description of mineral economics, which lack in quantitative analysis and utilized models ; the third part defined mineral region according to two indexes, and discussed the theoretical basis of the economic sustainable development of mineral region ; the fourth part systematically analyzed the current situation of the economic sustainable development of huangling county, emphatically discussed the coincidental relationship between mineral exploitation and economic development as well as the reasons for the recession of mineral economic ; the fifth part, drawing on the experience of transforming industry and renewing economic in mineral cities ( region ) at home and abroad, put forth the foundation train of thought of the economic sustainable development huangling county, and programs and smocks the economic development of huangling county using the method of systematic dynamics, presented the model of the economic sustainable development of counties by comparative analysis of three plans ; the sixth part provided some policed suggestion and measure for the economic susta inable development of huangling county

    全文分為七個部分：第一部分：提出研究的背景、意義與目的；第二部分：簡要回顧了國內外相關領域的研究進展與趨勢，指出當前研究主要集中在礦業城市與礦業經濟的定性描述，缺少定量分析和應用模型；第三部分：依據兩組指標界定礦業區域，探討礦業區域經濟可持續發展的理論基礎；第四部分：對黃陵縣域經濟可持續發展現狀進行系統分析，重點探討了礦產資源開發與經濟發展的耦合關系及其礦業經濟衰退的原因；第五部分：在借鑒國內外礦業城市（地區）產業轉型與經濟新生經驗的基礎上，探討了黃陵縣域經濟可持續發展的基本思路，並運用系統動力學方法對黃陵縣域經濟發展進行規劃與模擬，通過三種方案的對比分析，提出縣域經濟可持續發展模式；第六部分：黃陵縣域經濟可持續發展的政策建議與措施；第七部分：主要結論及進一步研究的問題。
  11. In second part, we simply review the essential emerging and developing process of library network reference, conclude the future developing trend of library network reference, that is, digitalization, networked, intelligent, scattered, virtualization, remote, integration, informational, marketable, personalization, socialization and cooperation

    第二部分簡單地回顧了圖書館網路信息咨詢產生和發展的基本歷程，總結了圖書館網路信息咨詢未來發展趨勢，即數字化、網路化、智能化、分散化、遠程化、虛擬化、集成化、信息化、商品化、市場化、產業化、個人化、社會化、聯合化等。
  12. There are many factors must be desided such as width ; depth ; ship ' s turning area ; ship ' s stop distance during the design of shanghai deep - water channel. very large container vessels. navigating at the channel with the affections certain wind, currents, seas and other influences, may cause more huge damage and expenditures for the accidents without safety operation. some date for channel design to very large container vessels has been gone beyond in " design code of general layout for sea port " and needs to replenish, modify. the purpose of this study is : to choice the ship form, mainly ship ' s overall size ; draft, according to design of shanghai deep - water port and development of container, then to get the date of width and depth of channel through simulator tests

    對8000teu 、 5250teu超大型集裝箱船舶的航道寬度設計已超出了該規范的規定范疇，急需補充甚至修改。本課題研究的目的是根據洋山深水港設計規劃和集裝箱船舶的發展趨勢，通過研究、分析、比較，選擇最合適的船型，尤其是船舶主尺度和船舶吃水。在此基礎上，採用船舶操縱模擬器進行航行模擬研究，在大量模擬研究情況下，得出進港航道所需的航道寬度和深度。
  13. There are some differences between simulation and experiment results in the patterns " distribution scale for there are still some conditions " differences just as characteristics of encapsulated materials and shapes of encapsulated structure

    Led結構的參數變化時，模擬曲線的變化趨勢與實驗情況吻合較好。其中存在的不同和誤差必需根據led管型的真實參數適當調整模擬參數和條件解決，有待進一步改進。
  14. The impacts of soil and water conservation on river flow and soil - hydrology of jia - lu - he, tu - wei - he, pian - guan - he and qiu - shui - he catchments have been analyzed by the simulation and on - spot measuring methods according to data of during 1950 ' s to 1990 ' s. the selected catchments of the above four all are in the key area of soil and water conservation on the loess pleatu. the main results are as follows. the trend, reasons and critical year of annual river flow " change have been researched by rank correlation and maximum deviation division

    本文以黃土高原水土保持重點區的佳蘆河、禿尾河、偏關河和湫水河等四條流域為代表，採用定量與定性、模型模擬與實測對比相結合的方法，系統分析了上世紀50 90年代時段內水土保持對河川徑流及土壤水文的影響，取得主要結果如下：採用秩相關和極差分割等定量評價方法，分析了四條支流徑流量變化趨勢、變化原因及發生明顯變化的臨界年份。
  15. The pseudo excitation method ( pem ) has brocken its efficiency - bottleneck, and appears to be quite effective in coping with such multiple excitation random analyses. therefore introducing the random vibration approach into the bridge engineering as a tool of seismic designs not only meets the objective requirement and the modem technological development, a good methodology background is also available

    虛擬激勵演算法突破了計算效率瓶頸，並且易於處理多點激勵問題。因此，將隨機振動法作為一種新的橋梁抗震設計方法引入我國橋梁工程界不僅符合客觀需求，體現了設計水平的現代發展趨勢；而且在方法論上也有了比較有利的條件。
  16. Whereas what we should do, during the evolution from traditional retailing to e - commerce one, is to identify erroneous districts and various obstacles. moreover, according to current status t hat e - commerce still stays at its elementary phase as well as its development trend that e - commerce will be organically combined with retailing entity, a new market strategy of network deals for tiannan department should be remade

    但在傳統百貨零售企業拓展零售電子商務的過程中，我們必須充分認清零售電子商務發展過程中的誤區和種種障礙，並根據目前電子商務處于初級階段的發展現狀和零售電子商務的未來將與傳統零售業實體有機地融合在一起的發展趨勢，重新擬定天南百貨零售電子商務之網上購物的市場計劃。
  17. Abstract : the authors studied a lot of related data and analyzed three development stages of the softwares, and it is held that the softwares have the development tendency as follows : ( 1 ) the establishment of model will be based on the space distribution relation of source rock and oil reservoir, it is because the formation of oil and gas reservoir depends on the space relation, and oil reservoir simulation will be combined with oil and gas resource evaluation ; ( 2 ) 3d dynamic simulation will be applied in the simulation of oil and gas migration

    文摘:為了準確和定量地重建出盆地發展過程或油氣成藏過程，掌握盆地與油氣成藏模擬軟體發展趨勢及技術難點，通過研究相關資料，對盆地與油氣成藏模擬軟體的三個發展階段進行了分析.總結出盆地與油氣成藏模擬軟體的發展趨勢：源巖與油氣藏在空間上的關系決定著油氣藏形成過程，應以源巖與油氣藏的空間組合關系為基礎建立模型，將盆地模擬技術與資源評價思想結合模擬出油氣藏形成過程；發展模擬的真三維技術，實現油氣運移的三維動態模擬
  18. The intensity at the. irradiated site decreased linearly with the power density of the irradiation light. this means that the light - induced change is a one - photon process. irradiations at different wavelengths indicate that the spectral change is frequency - selective

    暗恢復過程的研究表明，光輻照后光譜的強度有恢復到輻照前強度的趨勢，擬合發現存在兩個恢復常數，一個為2 . 5小時，另外一個特別長。
  19. In the seventh part, the conversion between the data of spss and gis and the data editing function of spss were introduced. and simulations of the space distributions of the ground subsidence and its influence factors were performed by spss. the lowest precision of the simulation is 86

    第七部分，介紹spss與gis的數據之間的轉換、 spss的數據編輯功能，運用spss對地面沉降及其影響因素的空間分佈進行了模擬，模擬的精度最低86 . 7 ，最高為97 . 6 ，與各要素實際的空間分佈趨勢吻合很好。
  20. Based on a series of tests and investigations, this paper draws some conclusions as following by processing and analyzing the test data. the minimum icing flashover voltage of composite insulators decreases with the increase of ice amount, and the tendency of it accords with exponential function. however, the relation of the minimum icing flashover voltage with icing water conductivity accords with power function

    通過大量的試驗研究工作，對試驗數據進行擬合和分析處理，得到了如下結論： 1 ）合成絕緣子最低冰閃電壓隨覆冰重量的增加而降低，且其下降趨勢符合指數函數規律，與覆冰水電導率的關系符合冪函數規律。
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