能積曲線 的英文怎麼說

中文拼音 [néngxiàn]
能積曲線 英文
energy product curve
  • : 能名詞(姓氏) a surname
  • : 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...
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The traditional analog frequency - sweeping instrument, which mostly uses the lc circuit as the frequency oscillator, is more expensive, too much bigger and heavy to carry. it can only display the curve of amplitude - frequency, but ca n ' t used to measure the phase - frequency, and ca n ' t used to print the curve of frequency response characteristic either. it brings many discommodity to the user

    傳統的模擬式掃頻儀大多是用lc電路構成掃頻振蕩器,它不僅價格昂貴,體龐大,而且只顯示幅頻特性,不得到相頻特性,更不列印被測網路的頻響,給使用者帶來諸多不便。
  2. Abstract : molecular deposition ( md ) film, a nano film, is assembled by the interaction of static charge between cationic and anionic compounds. the micro - friction properties of an md film on silica has been studied with atomic force microscope ( afm ). it has been found that the md film has lower coefficient of friction as compared with the original surface of silica. moreover, based on the analyses of the surface force versus distance curves, photographic image, friction force image, and modulated force image, it is concluded that the friction reduction effect of md film on silica is attributed to the surface adhesion reduction and surface micro - modification

    文摘:利用原子力顯微鏡對石英巖表面單層分子沉膜的微觀摩擦特性進行了研究,發現該分子沉膜具有一定的減摩性.通過對其表面力-位移、表面形貌像、調制力像和摩擦力像的進一步分析表明,石英巖表面分子沉膜具有減摩作用的原因在於它夠降低表面的粘著力並對表面具有微觀修飾作用
  3. With the numerical solution, an internal condensation critical curve can be calculated out by condensation theory and depositing theory, on the curve, the enter water ability equal to the out water ability, which can be used as the basis to determine the occurrence of internal condensation. but the result doesn ’ t coincide with the real completely. in this dissertation, we plan to get the critical curve by practical experiment results, because that the enter water ability only relates to the condensation density and the out water ability only relate to the volume ratio of the pneumatics system

    然而由凝結理論和沉理論得到的計算結果往往與實際有一定偏差,本課題希望通過實驗的方法獲得內部結露臨界,即系統進水力和排水力相等的,由於系統的進水力和充放氣過程中凝結水滴密度有關,排水力和系統容比有關,可以通過大量實驗總結出以凝結水滴密度和容比表示的內部結露臨界,作為判別內部結露是否發生的依據。
  4. After various indexes including constant elements, trace elements and organic gases in core sediment of site 1146 were analyzed, the changes of their vertical section curves of content with depth were studied and the potential reasons were also discussed in the paper

    通過對1146站位巖心沉物各常量元素、微量元素及各有機氣體的測試分析。研究了各元素及氣體含量的縱剖面隨深度的變化,討論了其可的原因。
  5. By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion

    由此得出結論,在非性磁場計算中:採用迭代法的情況下,在各迭代循環之間進行磁導率修正時,一個欠鬆弛迭代過程是必需的;對永磁體中的等效電流修正時可以不作欠鬆弛迭代;在純鐵的磁化上指定某一個固定的磁感應強度為磁飽和值,會使得插值求出的磁導率在該磁飽和值附近有一突變,這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中,由於微波管磁路比較復雜,作者認為磁體的工作點並不很好地反映磁體的工作狀態,而採用平均磁為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況;要表示磁系統設計好壞的程度,則用磁利用的效率為標準更好。
  6. Regarding the estimated performance of classifier at high specificities ( > 80 % ) in control eyes as measured by the partial area under the receiver - operating characteristic curve, the combination of both instruments is also superior to the individual instruments

    以受試者工作特徵下部分面作為對照眼高專屬性( > 80 % )的分類性評價,兩種儀器聯合篩查也優于單一儀器篩查。
  7. Based on the statistics and analysis of the accumulated experiment data in designing the mixing proportion of middle and small - sized concrete projects in west region of guanzhong plain, 3 groups of related diagrams and 5 groups of empirical formulas have been established, as well as a parameter table suitable for this region to select the concrete mixing proportion and a table of the mortar mixing proportion have been compiled. the quality of raw meterials and the characters of concrete in this region are also analyzed in the paper

    對關中西部地區各類中、小型砼工程中,配合比設計所累的實驗資料進行了統計分析,建立了3種關系圖和5組經驗公式,編制出了適用於該地區選擇砼配合比的參數表和砂漿配合比表,並對該地區原材料的質量狀況和砼的性特點,進行了必要的分析。
  8. According to the relation between gear wear and its vibration, continuous wavelet transform is introduced to estimate the wear condition, the energy values of continuous wavelet on scale fit a spline which is much like that of the wear course of the gear

    最後,將基於連續小波變換的信號處理方法引入變速箱齒輪的磨損估計。根據信號的連續小波變換的量譜對尺度的分值,擬合得到齒輪的磨損過程
  9. The theoretical results showed that point spread function ’ s distribution and the stray light mainly influenced the space resolving power and the measurement precision of the temperature measurement system, so we supposed some methods, which can improve the space resolving power, and the results proved the space resolution improved from 37 m to 16 m. 2. having made the space resolution come to 16 m, in order to improve the space resolving power more, we used image reconstruction method to reconstruct the

    利用這兩種方法,可以將測得的溫度場分佈中被點擴展函數卷鈍化掉的部分復原回來,實驗測得微小面元溫度分佈在復原后溫度最高值高於復原前最高值,且分佈變窄,較好地提高了系統的空間分辨力,最終得到真實溫度分佈的最佳估計。
  10. In practice, it ’ s very hard to find any ideal scatter points to track, so this thesis focuses on the motion compensation algorithm base on motion parameters estimation, which is used in r - d fft imaging algorithm and verified by simulation. work of this thesis contains : first analyze the signal - processing model of isar system in detail, and establish a 3 - dimensional mathematical scattering model of moving target. then some improvements are made on existing compensation algorithm, to get a higher image quality and reduce compute burden

    本論文有以下幾點創新: 1 .在距離向的補償(包絡對齊)方面,採用基準相關法代替相鄰相關法或累相關法,一定程度上解決了可出現的包絡漂移和包絡突跳現象;根據目標運動軌跡特點,採用二次擬合的方法,將包絡對齊時的局部誤差轉化為全局的誤差,以便實現較優的整體對齊效果。
  11. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面: 1 、針對頻率選擇性衰落通道:結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法,與傳統方法相比,該方法計算量更小,收斂速度更快,性更優,且對系統階次的過確定表現穩健,具有實際均衡應用價值; 2 、針對時間選擇性衰落通道:提出一種基於迫零均衡的時間選擇性通道均衡方法,演算法結構簡單; 3 、針對時變色散通道:利用瞬態均值提取通道時變信息,對之ar建模,利用卡爾曼濾波器跟蹤時變通道抽頭變化,可以快速跟蹤通道變化;基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法,提出了新的單輸入多輸出色散時變通道均衡與識別演算法,同樣具有對通道階次過確定保持穩健的優點;結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法;研究時變的多輸入多輸出系統的盲均衡與盲反卷問題,給出一種時變系統處理模型。
  12. Second, many mechanical properties are tested, for example, tensile strength and tensile modulus, flexural strength and flextural modulus and impact strength. by the analysis of the tensile stress - strain curves and the flexural stress - strain curves, the results are as follows : 1 ) the voluminal content of fibre of composite making by vacuum assistant resin injection is more than other composites. 2 ) the mechanical properties of the needlepunching nonwoven fabric reinforced polymer composite are superior to these of the calendering nonwoven fabric reinforced polymer composite

    首先,採用不同的增強材料(針刺非織造布和熱軋非織造布) 、不同的基體材料( 961樹脂和306樹脂)和不同的成型工藝方法(手糊法、真空袋法和真空輔助成型法)製造出了一系列非織造布增強復合材料,然後對它們的拉伸強度、拉仲彈性模量、彎強度、彎彈性模量和沖擊強度等力學性進行了測試,並分析了它們的拉伸載荷? ?位移和彎載荷? ?位移,結果表明真空輔助成型工藝大大提高纖維的體含量;針刺非織造布增強復合材料各項力學性優于熱軋非織造布增強復合材料。
  13. Beams are researched, and the relation between strains of corroded re - bars and fatigue life of beams are obtained. the main research contents and conclusions are as following : 1. under the fatigue loads, the overstrain of concrete approximately coincidences three stages strain development and accumulation rule, and the mechanical property of concrete is deteriorated

    鑒于實際工程中大量存在腐蝕鋼筋混凝土結構承受反復荷載作用,但其力學性研究不多的問題,本論文進行了銹蝕鋼筋混凝土梁抗彎疲勞試驗,研究了應力比和鋼筋銹蝕率對銹蝕鋼筋混凝土梁抗彎疲勞性的影響,得出了銹蝕鋼筋的應變與構件疲勞壽命之間的關系,主要研究內容及結論如下: ( 1 )在循環荷載下,混凝土殘余變形基本符合三階段變形規律,力學性劣化,疲勞損傷累。
  14. Fourthly, the resonance structure disappears in the energy dependence of integral cross - section due to the summation of partial waves

    另外在分散射截面中,由於對各個分波求和,量幾率的振動結構消失了。
  15. Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great

    採用雙向楔形壓制,大尺寸噴射沉5a06鋁合金楔壓坯的組織和性變化具有如下特點:當高向變形量為20 %時,大的孔洞變形破碎為小的孔洞,或呈狀孔;隨著高向變形量的增加,顆粒進一步變形,孔洞進一步破碎,大孔「吞併」小孔,小孔塌陷並逐步消失;當高向變形量達到60 %時,孔洞量大為減少,材料基本緻密,組織趨于均勻,楔壓坯料的密度、硬度變化接近水平,坯料的相對密度達99 . 7 % ,抗拉強度_ b = 408mpa ,屈服強度_ ( 0 . 2 ) = 289mpa ,延伸率= 13 . 6 % ;對比其它的壓制溫度,在450楔形壓制的坯料組織均勻,孔洞及顆粒邊界基本消失,顆粒之間冶金結合良好。
  16. Abstract : in this paper, a kind of technological scheme for one - step precision forging spur gear with large module is put forward by using positive friction role. experiment, in which commercial pure lead is taken as test material, is done in the special die designed, and force vs. stroke curve is recorded. it is shown that positive friction role can efficiently make a contribution to the filling of the tooth cavity, but increase forming force

    文摘:針對大模數直齒圓柱齒輪,提出了利用極摩擦一步成形的工藝方案,並用工業純鉛作為試驗材料,在設計的專用模具上進行試驗,記錄了力? ?行程,結果表明:利用極摩擦作用夠有效地保證直齒圓柱齒輪精鍛時齒腔充滿,但同時增加了變形力。
  17. The innovative ideas in this paper is to replace the linear fixed - gain pid controller for a nonlinear pid controller. based on the step response curves of conventional control system, we analyze the ideal variety of three gains in different times and construct the simulated curves of proportional, intergral and derivative gain. the controllers has considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, the dynamitic performance of the system and the size of input. to solve the problem of so many unknown parameters, we use transmit arithmetic to find the parameters which are fit for the system. to keep the robust and stable performance

    本文的創新之處在於,將傳統的固定增益的pid控制器用非性pid控制器來代替,並在此基礎上,就一般控制系統的階躍響應,分析了在不同響應時間階段pid的三個增益調節參數的理想變化情況,並根據這些理想變化,分別給出了比例、分、微分增益參數的一種連續的非性擬和函數。在分析雙位置環時,仔細考慮了使系統性變壞的各種因素,如系統的動態性及控制出入量的大小等等。
  18. Through simulation and calculating the four models, the influence on proportion coefficient, integral time constant, derivative time constant and partial feedback coefficient for system performance is analyzed. the ideal reference value of every parameters and step respond curves are given. the simulation result may be used as reference for making analogue controller or digital controller

    通過對這四種模型的模擬研究,分析了各模型中比例系數、分時間常數,微分時間常數及局部反饋系數對系統性的影響,並給出了各參數較為理想的參考值及階躍響應,模擬結果對製作模擬控制器及數字控制器有一定的借鑒作用。
  19. The inelastic demand spectra are established according to the new chinese seismic design code for buildings by means of force reduction factor r and ductility factor u, thus, a simple and practical method is established for seismic damage assessment in combination with capacity spectrum method ; the structure ' s push - over curve of second earthquake is gained by cutting the curve of quasi - test reversal load pattern method, thus, the structure ' s cumulate damage level can be computed by the capacity spectrum method too ; the results of an example are compared with the facts, and the validity and simplicity of this method is approved

    利用r -關系基於抗震規范彈性反應譜建立了力譜方法中的需求譜,並將該法和力譜方法結合,建立了一種簡單實用的結構損傷評估方法;對擬靜力循環往復加載的截取,得到了第二次地震作用的push - over,從而夠繼續使用力譜方法得到結構物的累損傷值;通過算例闡述了該法的計算步驟,所得結果符合基本規律,且具有概念明確、簡單實用的優點。
  20. We test it by many examples. we hope that our work will benefit the development and application of elliptic curve cryptographic technology

    我們希望我們所做的工作對橢圓密碼技術的發展和應用起到極的作用。
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