v-curve 中文意思是什麼

v-curve 解釋
v形曲線
  • v :
  • curve : n 1 曲線;彎曲;彎曲物。2 曲線規 (=French curve);【機械工程】曲線板;【棒球】曲線球;【統計學...
  1. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle

    流體噪聲主要來源於輸出流量脈動,造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流,在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲,本文以截流作用和液體的可壓縮性為理論依據,以matlab語言為工具,對原配流盤上的v型尖槽進行了理論計算,繪制出p - t圖線,分析了它的不足,並對原有v型尖槽進行了優化設計,得出了v型尖槽的最佳幾何尺寸:配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ,槽長5mm ,槽的橫截面為等邊三角形。
  2. According to photomicrograph, the diameter of emitting aperture is about 40um. in term of i - v curve, the threshold voltage is 1. 4v

    國際上,已經有先例將sio _ 2探尖與vcsel採用簡單、有效的膠合方法結合,製成vcsel snom復合探測器。
  3. The curve diagram of cylinder lifting force varies following the lifting bar was draw, the mechanism ? movement was simulated. the v - belt drive whose pulley is made by impact extrusion is the special drive way in farm machine

    本研究還繪制了油缸提升力隨提升桿件角度變化的曲線圖,機構模擬運動圖,使設計的表達更為直觀。
  4. A generalization, n > 4, is given in this paper. in result the critical points of these koch curve with different values of tv by decimation based on ising model are same, but the critical exponents are different. the four ones, , are same, and the other two v, are different

    本文對其進行一種推廣,推廣后n 4 ,對于取不同n值的科赫曲線應用重整化群的格點消元法,仍採用ising模型,結果得到同樣的相變點,但是臨界指數不完全相同,其中, , ,相同,而,不同。
  5. We can obtain the trap density by measuring the change of gate voltage of mos capacitance under constant current stress and the change of high frequency c - v curve before and after the stress

    該方法根據電荷陷落的動態平衡方程,測量恆流應力下mos電容的柵電壓變化曲線和應力前後的高頻cn曲線變化求解陷階密度。
  6. In this paper, the author improved the design of v trough of port plate by studying the automobile power steering pump ( apsp ) produced home and abroad and analyzing the different reasons of their noise from the stator transition curve, which could reduce the noise of apsp effectively

    本文以國內和國外生產的汽車動力轉向泵為研究對象,從定子過渡曲線的角度分析了它們噪聲不同的原因,並對配流盤v形尖槽進行了優化設計,可以有效地降低汽車動力轉向泵的噪聲。
  7. As a result, the p - v curve of the target was a quasi - isentropic compression curve, which consisted of small hugoniot curves ( similar to isentropic curves ) from different original states, and was located betwee n the hungoniot curve and isentropic curve but closer to the latter. finally, on a two - stage light - gas gun, titanium alloy projectiles ( with mass of 0. 35 ~ 2. 80g ) were driven intact to hypervelocities as over 15km / s by 93w - ofc - tc4 - a1 - mb2 system flier - plate with graded wave impedance, although the fl

    在二級輕氣炮上,利用93w - ofc一tc4一al一mb :系波阻抗梯度飛片成功將克量級( 0 . 35一2 . 809 )欽合金二級飛片發射到了15kln / s以上的超高速度,且二級飛片主體是完整性,但其平面性和飛行姿態還有待於今后的深入研究。
  8. V ) based on cbr ( cased - based reasoning ) principle and characteristic of garment structure graphics design - strong experience - oriented, this paper selects cbr as the basic theory of intelligent subsystem, which creatively combines point - grading, vectorgraph method, theory of fuzzy reasoning and bezier curve algorithm together and devise case reuse and revise algorithm

    ( 5 )在基於實例推理( cbr )原理及服裝結構圖形設計特點?強經驗性的基礎上,選用cbr為基於autocad的服裝結構圖形設計子系統的解決方案。創造性的將點位移及矢量法膜糊推理原理和bezier曲線演算法相結合,設計了實例重用和實例修正演算法。
  9. A self - made device used to measure the hydrogen release curve ( v - t ) of coated tih2 / and tih2 was founded, and the results show that the hydrogen released characteristic of coated tih : had been improved and hydrogen released time had been delayed

    利用自製的釋氫試驗裝置,測定了tih _ 2包覆劑的釋氫曲線( v - t ) ,並和未包覆的進行了比較,證明包覆對改善tih _ 2的釋氫特性,延遲釋氫時間確有效果。
  10. Finally, the rules used to design the induction motor and set the inverter v / f curve are summarized to improve the stability of the system movement in the forth part of the dissertation, three measures are brought forward to eliminate the system low frequency oscillation. the first measure adopts pulse based dead time compensation to suppress the oscillation. as second measure, considering the motor and inverter as an integration, the discontinuous space vector modulated strategy named dpwm3 is proposed for the first time to suppress the oscillation

    措施一是在總結常用死區補償方法的基礎上,提出脈沖為基礎的死區時間補償法( pbdtc )對死沈陽工業大學博士學位論文區進行補償,抑制系統的低頻振蕩;措施二是從逆變器與電機的機電一體化配合更加完善的角度,首次提出採用不連續空間矢量調制策略dpwm抑制系統的低頻振蕩;措施三是通過對系統中電機參數的調節,達到抑制系統低頻振蕩的目的;最後進行了實驗驗證。
  11. First, the paper researchs the spice simulation of single electron transistor based on curve approach and quasi - analytical model of single electron transisor, and simulate characteristic of single electon transistor with matlab tool. secondly, the paper combine spice simulation program with master equation of single electron transistor, put forward novel spice simulation method of single electron transistor based on master equation, by choose master state of single electron transistor and build master equation of single electron transistor, afterward gain nonlinear cortrolled source of spice model of single electron transistor by solve the master equation of single electron transistor and simulate v - i characteristic of single electon transistor by spice program, it ’ s result prove the method is availability precision comparing with master equation method

    然後在此基礎上提出了基於主方程法單電子晶體管spice模擬新方法,本論文結合當前電路模擬軟體spice程序和單電子晶體管主方程模擬演算法,通過選擇單電子島電子數的主要狀態,建立單電子晶體管主方程,然後求解主方程,求得單電子晶體管spice等效模型的受控源的非線性函數,然後利用集成電路輔助分析軟體spice的abm (模擬行為建模)建立單電子晶體管( set ) spice等效模型,利用set的等效模型對單電子晶體管v - i特性進行模擬,實驗證明此方法與直接解主方程法相比具有一定的精度。
  12. Flow feature : the intrinsic flow feature of v - type regulating ball valve approximates the intrinsic flow feature of equal percentage, the featrre curve is shown as fig. 3

    流量特性: v型調節球閥的固有流量特性為近似等百分比固有流量特性,特性曲線如圖例所示
  13. The research indicate that the structured soft clay has below several characteristic, the viscous strain is produced during the stage of primary consolidation and of second consolidation, and in the prophase, the relation of stress - strain - strain rate is unique, so the form of constitutive model, such as, f ( v ', e ) = 0, f ( ' v, e, t ) = 0, ca n ' t describe strain behavior of soil skeleton rationally ; the time - dependent properties involve three aspects, in addition the time - dependent strain, apparent preconsolidation pressures that depend on strain rate, and the effect of creep compression on apparent preconsolidation pressures ; because of holding structural strength, the mechanics characteristic is determined by the magnitude of stress, and the compression curve is composed of several sections. by combining structural yield stress and it ' s characteristics with the improved time line model, a new one - dimensional elastic visco - plastic consolidation model is established

    研究結果表明,結構性土的固結過程具有以下特性:主固結和次固結階段都包含有因土骨架的粘滯性移動而產生的變形,而且在正常固結階段,存在應力?應變?應變速率的唯一性, f ( _ v , e ) = 0 、 f ( _ v , e , t ) = 0形式的本構關系不足以描述土骨架的變形行為;固結壓縮過程中的時間效應包括三個方面的內容,除了應力應變關系與時間相關外,還包括粘滯性變形引起表觀前期固結壓力增加和屈服應力的應變速率效應;軟土的結構性使其力學特性與應力水平相關,壓縮曲線具有分段性。
  14. The physical process of generating quasi - isentropic compression on target via flier - plates with graded wave impedance might be considered as the successive overlap of a series of small shock loading waves generated by the transition layers in the flier - plate. as a result, the p - v curve of the target was a quasi - isentropic compression curve, which consisted of small hugoniot curves ( similar to isentropic curves ) from different original states, and was located between the hungoniot curve and isentropic curve but closer to the latter

    波阻抗梯度飛片對靶板的壓縮過程是一系列弱沖擊加載波相繼發生作用疊加的結果,靶板由此獲得的p - v線是一組通過不同起始狀態點的hugoniot線的連線,這條連線可以近似看作是由小段小段等熵線連接而成的準等熵線。
  15. Professional racing - field : the 3000 ? stunt competition park includes : eight v - type curve, three slope house, three wavy mounds, one bridge, one stunt board, s - type raceway

    專業賽道:賽道由八個彎道、三個高房坡、三個土坡臺、一個橋梁、一座斷壁跳臺及空中跑道組成的3000平方米園內賽場。
  16. According the simulated results, the dark i - v curve is in agreement with the experimental date from literature, but the i - v curve under illumination doesn ’ t fit the experimental date from literature in the insaturation region

    在使用現有理論的模擬結果中,獲得的暗電流的i - v曲線與文獻中實驗數據一致,而穩態光照下i - v關系曲線與文獻報道的實測結果在非飽和段不吻合。
  17. The data formats of optical design software ( code v ) and optical cnc machines are investigated. based on the function of optical design software that can output documents with file type of txt, we developed the software in visual c + + used to control optical manufacture process. the software can find parameters of curve surfaces from the documents, handle the data stream of optical design software, the technological parameters of optical manufacture machines and surface error data of talysurf, and simulate the manufacture process

    研究光學設計軟體( codev )和光學cnc製造設備的數據格式,利用光學設計軟體的文檔輸出功能,採用vc + +編制一個能從上述文件中自動發現曲面方程的介面,處理光學軟體數據流、光學設備工藝參數以及輪廓儀的面形檢測數據,模擬加工過程,生成用於光學加工的控制代碼實現非球面的銑磨和拋光,實現光學cad cam一體化製造。
  18. If the pulses are of the same polarity, the i - v curve of varistor will become asymmetric, i. e., the positive degradation is less than the negative degradation

    如果所受的突波為單一極性,則受突波侵襲后之樣品的i - v曲線呈現不對稱性,亦即正向劣化程度低於反向劣化程度。
  19. The results provide a theoretic basis to research the multi - pulse operation of high power spark gap. as the breakdown mechanism is concerned, the influence of rough electrode on the v / p ( switch breakdown voltage / gas pressure ) curve is analyzed originally using breakdown possibility. the requirements of flat v / p curve are presented, which provides a theoretical basis for controlling and utilizing the curve

    對氣體火花開關的擊穿機理,創新的利用擊穿概率分析了粗糙電極對氣體火花開關v / p曲線影響的物理機制,給出了利用細小結構構造平穩v / p (開關擊穿電壓/氣體壓強)曲線的條件,為實驗中控制和利用該曲線提高氣體火花開關的多脈沖運行能力提供了理論基礎。
  20. At all test potelltials, but not affected l - v relations curve. using perforated whole cell patch cl

    在穿孔模式下, 100umsnp可以明顯抑制ib 。
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