phase ratio 中文意思是什麼

phase ratio 解釋
相比率
  • phase : n 1 形勢,局面,狀態;階級。2 方面,側面。3 【天文學】(月等的)變相,盈虧;【物、天】相,周相,...
  • ratio : n. (pl. ratios)1. 比,比率,比值;比例;系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達;求出…的比值;使…成比例。2. 將(相片)按比例放大或縮小。
  1. In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits

    論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念,並以加速度模糊函數為分析工具,詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。
  2. We carry on model study on non - thermal phase transition and antiproton to proton ratio at rhic energies

    本文對非熱相變和rhic能區的反質子質子產額比進行了模型研究。
  3. Firstly, second harmonic component ratio and dead angles of two phase inrush ' s dispersion in three - phase transformes are acted as input variable. secondly, the method applies improved algorithm based on the original algorithm of multi - layer forward back propagation network, that is to say, adding last variational effect of weight value and bias value to this time and making use of variable learning rate. at the same time, this method also adopts dynamic form in the number of hidden floor node

    首先,文中將三相變壓器兩相涌流差流的二次諧波含量比和間斷角作為網路的輸入變量;其次,利用對原有bp網路訓練演算法基礎上的改進型演算法(即在計算本次權值和閾值的變化時增加上一次權值和閾值變化的影響以及採用變學習率,與此同時隱含層神經元個數採用動態形式) ,通過樣本訓練使網路結構模型達到最優。
  4. A complex mixed - phase explicit microphysical parameterization scheme, which also be known as reisner 2 explicit scheme was developed for use in the ncar / penn state mesoscale model versions ( mm5 ). the single - moment schemes has additional variables for graupel and ice number concentration, in which the mixing ratio of cloud water, rain water, cloud ice, snow and graupel are predicted and number concentration specified

    Mm5中的reisner2方案是一種含霰的復雜混合相顯式雲物理方案,該方案包含了雲水、雨水、冰晶、雪和霰的混合比預報方程,同時對冰晶的數濃度作了預報。
  5. With the established rf front - end system simulation platform, adding the digital modulated baseband signal, this paper simulated the multifold digital modulated signal ’ s transmission, such as 2ask, qpsk, and 16qam. then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system. the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end

    隨后在建立的寬帶射頻前端通用模擬平臺上,加入基帶數字調制信號,對多種數字調制格式的信號在該通用平臺上的傳輸作了研究,模擬了2ask 、 qpsk和16qam等調制格式信號的發射與接收,研究了功率壓縮和本振相位噪聲對不同調制的誤碼率影響,實現了滿足多種功能要求的寬帶高性能綜合射頻前端的設計。
  6. The study conducted research on the following four fields : firstly, the characteristics of the interfacial polymerization system of piperazine aqueous solution / trimesoyl hexane solution were systematically investigated. the results show that at a certain molar ratio between the two monomers, piperazine and trimesoyl, at the two phase interface, a dense functional layer of ultra low pressure, high permeating flux and high salt rejection formed by controlling the time of interfacial polymerization, such as the composite membrane ( i ), the concentration in water phase is 0. 4 %, and 0. 1 % in organic phase, and the polymerization time is 1 minute

    本文主要進行了四個方面的研究,首先系統分析和研究了哌嗪水溶液均苯三甲酰氯正己烷溶液界面聚合體系特徵、界面聚合反應中各影響因素對膜性能的影響等,結果發現,當界面處兩相單體(哌嗪和酰氯)分子摩爾比為某一比值時,通過控制界面聚合時間(有機相處理時間) ,可以形成超低壓高通量高脫鹽的緻密功能層,如復合膜( ) ,水相濃度為0 . 4 ,有機相濃度為0 . 1 ,聚合時間1min 。
  7. The verify experiment proves that its ratio and phase characteristics are much better than ordinary ones and the precision is enough for measure use. zero - flux current transformer can ’ t obtain absolute zero flux because residuary flux, so when the secondary turns is too small it will not satisfying. to improve the precision further, proposes a method to compensate zero - flux current transformer using capacitance parallel connected coil and deduces it

    為了進一步抵消剩餘磁通,提高互感器的精度,提出了一種並聯電容線圈補償零磁通的方法,並進行了理論推導,設計了基於該方法的100匝電流互感器,通過校驗證明它可以改善零磁通電流互感器的比差和角差特性,提高互感器的精度,將電流互感器的二次匝數由普通互感器的幾千匝降到了100匝,提高了測量微小電流的能力。
  8. Those conclusions may be meaningful for us to determine mixture ratio when fabricating composite films with special structures. 2. we study the phase - separation and microstructure of the pure binary and trinary mixed lb and ls films of dimyristoyl phosphatidyicholine ( dmpc ) cholesterol ( chol ) and sphingomylin ( sph ) deposited from pure water subphase by - a isotherms and tapping mode atomic force microscopy

    2 、利用- a等溫曲線和原子力顯微鏡的輕敲模式對從純水亞相上提拉的不同生物分子二肉豆蔻酰磷脂酰膽堿( dmpc ) 、膽固醇( chol . )和神經鞘磷脂( sph )不同種純的、二元及三元混合單分子膜- lb膜和ls膜體系的相分離和微結構進行了研究。
  9. When the atomic ratio of nb is one, the structure is homogeneous and almost composed of the single sm2fe17 phase. it ' s nearly the same structure as that after annealing. so it can reduce the production cost and increase the stability of magnetic properties

    當nb的原子比為1時的鑄態組織基本為均勻的接近單相的sm _ 2fe _ ( 17 )組織,已接近於退火后的組織,從而可以避免冗長的均勻化退火化過程而直接用於製造永磁體,極大的降低了生產成本,並能有效的提高磁性能的穩定性。
  10. When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis

    對壓制式干擾來講,干信比越大,雷達的發現目標的概率就越小,由於分散式干擾的干擾效能在於其合成功率,在分散式干擾單元分佈之後,各個干擾源與被干擾對象之間的距離的不確定性,帶來了干擾信號相位的不確定性,增加了分析干擾效能的復雜度。
  11. A. thalianas were respectively introduced by ion beam with a collection of donor dna having a gradient genetic relation with a. thaliana. in vegetative phase of tl, the ratio of phenotypic variation showed no distinct difference among these transformed populations

    用離子束介導與擬南芥菜親緣關系從近到遠一系列的外源供體的全dna轉化擬南芥菜,在轉化當代營養生長期,各轉化群體的表型變異情況沒有明顯的差別。
  12. Methods of estimating baud rate, signal to noise ratio ( snr ) and reference phase are investigated. a modified euclidean algorithm is proposed to estimate baud rate of the burst packets. a cumulant based algorithm of estimating snr of star - qam is proposed which has better estimation performance in medium scope of snr

    研究了自適應調制中波特率,信噪比和載波相位等參數的估計演算法;提出一種基於修改的歐幾里得演算法的波特率估計演算法,這種演算法可以對突發分組的波特率做出準確估計;提出一種星型qam信號的信噪比估計演算法,在中等信噪比條件下,具有較好估計性能。
  13. We examin e the generation of bell state in bose - einstein condensates of two interacting species trapped in a double - well configuration analytically and the density of probability for finding the entangled bell state is given. we find that the oscillation amplitude of the probability of density for finding the entangled bell state becomes greater as the ratio of the interspecies interaction strength and the tunneling rate increases, moreover the self - interaction strength of the component a ( b ) has no effect on it. also we use the time - dependent su ( 2 ) gauge transformation to diagonalize the hamilton operator, obtain the berry phase and analytically the time - evolution operator

    此外我們還研究了在雙阱玻色-愛因斯坦凝聚中糾纏態的演化,研究發現隨著組分間相互作用和隨穿率的比值的增加系統演化到bell態的概率變大,而且組分自身內在的相互作用對形成bell態的幾率沒有影響;並且用含時su ( 2 )規范變換對角化哈密頓量得到了系統的berry位相和時間演化算符,並研究了量子隨穿過程。
  14. By adjusting many variable geometry components of the engine, bypass ratio can be changed during large range ( the most 0. 25 of military fighter ). the high specific thrust characteristic of turbojet engine and the low specific fuel consumption characteristic of the turbofan engine can be realized during different flight phase by the usage of vce technology

    變幾何變循環發動機是應用於第四代多用途戰斗機的理想動力裝置,通過多個部件幾何的調節在較大范圍內改變涵道比,能夠使發動機在不同航段分別實現渦噴發動機的高單位推力性能和渦扇發動機的低油耗性能。
  15. The experiment show that cr : sbn crystal has super characteristic of four - wave mixing to produce the phase - conjugate wave. we study the dependence of the phase - conjugate reflectivity of 1000ppm cr : sbn crystal on the parameters of incidence light such as light intensity ratio and the angle of incidence

    研究了摻雜量為500ppm的cr : sbn晶體的四波混頻相位共軛特性,發現該晶體的四波混頻特性不如摻雜量為1000ppm的cr : sbn晶體。
  16. A integrated algorithm of ambiguity resolution is proposed. by using triple carrier phase, integer gauss transformations, qr factorization, cholesky factorization, and geometry constraint, the correlation between ambiguity components is reduced, and more error ambiguity can be discarded, also process of ambiguity searching getting rapidly. the ratio test combining constraint of baseline is used to fix ambiguity rapidly

    利用三差最小二乘求解模糊度浮點解,然後採用整數高斯變換降低模糊度分量間的相關性,再根據qr分解和基線幾何約束減少需搜索的模糊度組合,採用cholesky分解在搜索過程中及早淘汰不正確的模糊度組合,最後利用ratio檢驗與基線幾何約束條件相結合檢驗模糊度組合,盡快固定正確的模糊度。
  17. In reproductive phase, however, the ratio of low - fertility plants first increased then decreased as genetic relation between exogenous donors and a. thaliana reduced

    但在生殖生長階段,低育性株率的變化隨著親緣關系的從近到遠呈現出一種先升高再降低的變化趨勢。
  18. In order to look for the key factors governing fluidization characteristics in the dense phase pulverized powder feeder, the effects of the different operating conditions and the geometrical variables on the mass ratio of powder and gas and the stable conveying time of the system were investigated in the self - developed special dense phase powder conveying test - bed

    摘要為了尋找影響濃相粉體給料器流化特性的關鍵因素,在自行設計的專用小型濃相粉體輸送試驗臺上,考察了不同操作參數和結構參數對輸送固氣質量比和穩定給粉時間的影響,總結了各因素對流化質量的影響規律。
  19. We calculate a model with angular momentum loss caused by gravitational radiation, and find that the binary undergo cyclic evolution as well. however, the period of the cycle becomes shorter, and the ratio of the time spent in the semi - detached phase to the time spent in the contact phase in a cycle becomes smaller

    我們計算了由引力波輻射引起雙星系統的角動量損失的演化模型,發現雙星系統還是經歷循環演化,不過循環的周期變短,且雙星系統的每一個循環處在半接狀態的時間與處在相接狀態的時間之比變小。
  20. Abstract : the transformation of the flowmeter and the control valve for water and oil phase flow, the control devices for oil - water phase ratio and blast hole charge and other control devices has eliminated the distinct dificiencies in the quality control of on - site mixed loading car of emulsified explosive and realized its automatic control so as to improve the quality of the products of emulsion and emulsified explosive and their blasting effect

    文摘:從水相和油相流量的流量計、控制水相油相流量的流量控制閥、控制油相水相配比的配比控制裝置、炮孔裝藥量控制裝置以及其他控制裝置的改造入手,改變原有乳化炸藥現場混裝車質量控制上存在的明顯不足之處,實現乳化炸藥現場混裝車的自動控制,提高了生產乳膠及乳化炸藥的質量和爆破效果。
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