constant fraction 中文意思是什麼
constant fraction
解釋
不變分數-
For a given media, and at a constant total pressure and temperature, the partial pressure of oxygen is proportional to oxygen mole fraction
對一個給定的媒介，在恆定的總壓和溫度下，局部壓力與氧的克分子數成比例。 -
The maximum of the piezoelectric constant d33 is 68pc / n when the volume fraction of pzt, pvdf, pan is 0. 55, 0. 45, and 0. 05 respectively. finally, when the n, a, p are 6, 0. 6, 0. 3 respectively, the calculation value can agree well with the experimental data
而且經過理論計算與比較，當以下三個參量取下列值時，即陶瓷顆粒形狀因子n = 5 、極化率= 0 . 6 、結構因子q = 0 . 3時，實驗數據與理論計算吻合較好。 -
The basic electronics of positron imaging systems are composed of the preamplifier, shaper, main amplifier, constant fraction discriminator ( cfd ) and so on
有用的數據采入計算機后，對其進行相關的處理后進行圖像重建。 -
Here we assume planets move in circular motion at constant speed, and the synodic periods given above is just an approximate value. actually the planetary motion is full of small variants, and the synodic period values are irrational number. the quotient of two irrational numbers cannot be written as a fraction
最新的消息是，在2000年10月後的六星期內，竟然一口氣為土星多發現10顆衛星，讓它在剎那間重新超越天王星，成為最星多勢眾的行星，現在土星有28顆衛星，遙遙領先只有21顆衛星的天王星，木星的衛星數目為18顆，而第四位的海王星則只有8顆。 -
In the experimental system apd transferred laser pulse to weak electrical current. after two - level amplification we got a voltage pulse that had a enough amplitude to be applied, the timing point was discriminated by the constant - fraction timing discriminator circuit. timing circuits transferred the pulse flight time to digital signal accurately
實驗系統採用apd作為光電傳感器，將激光脈沖信號轉變為微弱電流脈沖，經過兩級放大后，信號變為幅度較大的電壓脈沖，經過時點鑒別電路分別確定計時起點和終點后，由計時電路來精確測量兩個時間點之間的時間間隔。 -
The main results are as follows : 1. dynamical behavior in coupled map lattices with regular topology are investigated by using lyapunov componet. 2. dynamical behavior in coupled map lattice with scale - free topology are investigated in detail. our strategy is to apply three feedback control methods, including constant feedback and two types of time - delayed feedback, to a small fraction of network nodes to reach desired synchronous state
本論文正是對具有無標度拓撲結構的耦合映象格子的動力學行為進行了研究，主要內容和創新點如下: 1 .利用lyapunov指數對具有規則網路結構的耦合映象格子系統的動力學行為進行研究; 2 .對具有無標度網路結構的耦合映象格子系統的動力學行為進行了詳細研究;為了使系統達到同步，我們的策略是應用三種反饋方法（常數反饋和兩種時延反饋）對系統的部分節點進行控制以達到我們期望的狀態。 -
At the condition of constant salt content ( total ion content ), if the water mass fraction in the substrate is lower than 50 %, its ec is determined by both the salinity and the moisture of the substrate
試驗結果表明：在保持基質鹽分（離子總量）水平不變的條件下，若基質質量含水率低於50 % ，則電導率值受基質內離子含量和基質水分的雙重影響。 -
For high count - rate of the eelcs is designed a new non - delay - line constant fraction discriminator and a spectroscopy amplifier with pile up rejection
考慮到譜儀的高計數率的特點，設計了適應高計數率的反堆積放大器和無延遲線恆比定時甄別器。 -
In mpe / lldpe ( ldpe ) blends when lldpe ( ldpe ) content varies from 20 % to 80 % ( weight fraction ), tear strength and puncture of remain almost constant ; smpe / lldpe film ' s puncture strength changes slowly too. considering dsc analysis, it can be verified that the co - crystallization between ingredients affects tear strength and puncture strength greatly. 2
Mpe中加入lldpe或ldpe在後者含量為20 - 80 （重量比）時，撕裂強度和穿刺強度沒有明顯變化； smpe lldpe薄膜穿刺強度的變化也很平緩，結合dsc分析，證明組分之間形成的共晶結構對薄膜的撕裂強度和穿刺強度影響很大。
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