peak-peak value 中文意思是什麼
peak-peak value
解釋
正餅峰間幅值-
4 ) cryopreservation had a little influence on hpfl ' function, and the influence aggravated as cryopreservation time went on. when hpfl were recovered, their activity and attachment efficiency declined, and the excretion peak value of alb descended
4 ）凍存復甦對hpfl的生物學功能有一定影響，隨著凍存時間的延長，復甦后的細胞活性和貼壁率有一定下降，白蛋白分泌峰值亦有所降低。 -
Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。 -
For increasing the effective material peak - value power ( empvp ), solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state and improving the efficiency of the pmsm, some solving method are taken as follows : the influence of length / diameter ratio to the empvp is analyzed, and the optimum size of length and diameter is chosen
主要是從提高電機的有效材料峰值功率、解決pmsm提高電動機運行狀態時的弱磁擴速能力和減小發電機運行狀態時的電壓調整率之間的矛盾及提高電機的效率著手，分析了長徑比、氣隙長度對有效材料峰值功率的影響，並確定了它們的最佳尺寸。 -
Research about ctod and its components 8 ", " shows that the direction angle of ctod vector is identical with the fracture angle of void - mode fracture, which is obtained through experiments, and it is also identical with the result got by peak value line of stress triaxiality. besides, 8 i " was compare with vgc as criterion for initiation of void - mode fracture
對裂紋尖端張開位移ctod及其張開型分量~ 1和剪切型分量~ 11的分析表明，在試件發生韌窩型斷裂時，按照圓弧裂紋中ctod矢量的垂直方向預測的斷裂角與試驗測得的斷裂角符合較好，與三軸度脊線預計的結果也比較一致。 -
The following results were found, i. e., the water ratio affects obviously the acoustic wave velocity of rock sample ; the wave velocity is higher in saturated rock samples than in unsaturated ones ; and it decreases gradually with the strain of samples during uniaxial compression ; and also with the lengthening holding time at 160 ; when heating the samples the acoustic wave velocity increases slightly in initial stage and comes to the peak value at 60, then decreases gradually with increasing temperature ; meantime, there is a certain temperature effect on rock samples size
實驗發現含水率對波速影響比較大，飽和巖樣的聲波傳播速度高於不飽和巖樣的聲波傳播速度；人工預制裂紋對聲波傳播速度影響不大；單軸壓縮條件下，聲波傳播速度隨應變增加逐漸降低；在同一溫度（ 160 ）下，波速隨保溫時間的增加而逐漸降低；在對巖樣逐漸加熱情況下，初始加熱階段波速略有升高，當溫度達到60時，巖樣波速達到峰值，之後隨著溫度繼續升高其波速逐漸下降；波速隨溫度變化具有一定的尺寸效應。 -
Abstract : the paper points out that the main factor influencing residential load variation are the following household appliance : electric cooker, electric shower bath, air conditioner, etc. in peak - value time from inquiry
文摘:通過對住宅用電進行調查，分析了高峰用電時間內大功率家用電器，如電炊具、電淋浴器、空調機等投入是當前住宅用電負荷變化的主要因素。 -
During the female menstrual cycle, lh lute tropic hormone in her urine shows peak value at about 24 hours before ovulation
在女性的月經周期中，尿液中的促黃體生成激素lh會在排卵前24小時左右出現高峰值。 -
The velocity of astrocytic intracellular calcium elevation to the peak value is a slightly faster than neurons
Ast鈣水平達到峰值的速度略快于神經元。 -
Increasing ultrasound intensity in the range of cavitation threshold and cavitation peak value, decreasing monomer concentration and increasing the temperature make the induction period shorter. under optimized reaction conditions, the conversion of ba can reach 90 % in 11 min at high n2 flow rate the viscosity average molecular weight of the obtained pba reaches 5. 24 106. the molecular weight of pba varies with ultrasonic irradiation time, indicating that the ultrasonic induced emulsion polymerization is dynamic and quite complicated, polymerization of monomer as well as degradation of polymer occurs concomitantly
一、實現了無常規化學引發劑存在下的超聲輻照引發丙烯酸正丁酯（ ba ）間歇乳液聚合，制備了pba納米粒子，在11min內轉化率達到90 ，分子量達5 . 24 10 ~ 6 ，隨反應時間的延長而降低，表明超聲輻照引發乳液聚合是一個動態的復雜過程，單體的聚合和聚合物的降解同時發生。 -
( 3 ) in order to prove multi - point exciting experiment good, we employ traditional ergography ( hammering method ) to make experiment, peak value pick - up method to modal identification, and compare identification result by hammering method with vibration table experiment. the result revel that vibration table experiment can obtain larger energy and more adequately excite
在重頻、密頻時、在試驗試件的結構巨大，需要大的能量激勵才能充分激出完全模態時、在一激勵點為某階感興趣模態的節點時，都需要用多點激勵的方法。 -
The laser power is detected through the pd ’ s movement across the faculous region. when the value of the peak value of laser power is got, the power of the facular boundary points can be found according to definition of the facular boundary such as “ 1 / e ~ 2 ” theory. then the equation of the facular boundary can be made fitting by using the least square method, and calculate the beam divergence at last
採用兩個光電探測器分別檢測光束不同高度上的兩個光斑，在確定光斑中心最大光強值后，根據光斑截面尺寸的1 / e2定義，得到光斑截面邊界點的光強值，並以其為標準判定光斑截面的邊界點，對探測到的邊界點通過最小二乘法進行擬合，得到橢圓光斑截面的方程，根據空間幾何關系求出發散角。 -
Fictious simulation of high - speed roll casting has been carried out on the basis of the fact. the results showed that roll casting speed increase with the decrease of the thickness of the strip, and the peak value of rolling pressure decrease with the increase of roll casting speed and thickness of strip or the increase of roll casting zone. the designed parameters of mechanical capabilities of the roll caster should be raised when rolling pressure increase with roller diameter increase
研究結果表明，減薄鑄軋板坯厚度可提高鑄軋速度；隨著鑄軋速度降低、鑄軋區增大與鑄軋坯厚度減薄，軋制壓力峰值增大；隨著鑄軋輥徑增大，軋制壓力增大，因此鑄軋機力能設計參數也要相應增大。 -
The research result shows that the influence of impressed electromagnetic field strengthen the gas explosion, and make the flame propagation speed, the flame propagation speed peak value and the overpressure peak value enlarged ; with the increase of electromagnetic field intensity, the effects on aggravating the gas explosion raise
研究結果表明：外加電磁場使瓦斯爆炸強度增加，使火焰速度、火焰速度峰值、壓力波超壓峰值增大，隨著電磁場強度增加，其對瓦斯爆炸加劇作用增強。 -
It is noted that no displacement of ft ~ lr adsorption of rnse occurred after the preparation of lb film compared wtth that prior to the preparation. wth the thickness of lb filin incrasing, the peak value of adsorption is of the tendency of increasing which indhates that lb film can deposit even and effeetively
Hihb的成膜性能及吸附蛋白質的研究（ l ）用langmuirra天平研究了不岡酸度的亞相對hihb成膜性能的影響，結采腦刃，堿性亞相中hihb的成膜性能較佳。 -
The hardware is composed of the selection of sensor, magnifying circuit, filter circuit of multi - plot tracing, shaping circuit, demodulation circuit, peak value holding circuit, and voltage comparing circuit
硬體部分包括傳感器的選擇、放大電路、多點跟蹤濾波電路、整形電路、檢波電路、峰值保持電路、電壓比較電路。 -
The research results show that the influence of sampling frequency, sampling error of peak value, strobe - position and strobe - width on fft and ifft is obvious
研究發現，超聲信號的采樣頻率、采樣特徵點、閘門位置及閘門寬度對超聲信號的fft及ifft結果有明顯的影響。 -
The model considers peak value of lightning current, tower grounding resistance, tower style, line surge impedance, power frequency voltage and distance between towers
模型中考慮了雷電流幅值、桿塔沖擊接地電阻、桿塔具體形狀、尺寸、桿塔波阻抗、工頻電壓及檔距等因素的影響。 -
Work frequency of the source current module is 50khz, and peak - peak value is 1ma
恆流源模塊工作頻率為50khz 、峰峰值電流為1ma 。 -
Our item choiced msp430f149, a sort of singlechip as controller, designed our hardware electrocircuit to get the pulse wave singnal, and used msp430f149 to continuously search and calculate the peak - peak value of the pulse wave, and compute oxygen saturaction. in our study, in order to hurdle the dirft of baseline caused by the physiological difference of human bodies. we designed one circuit which can automatically regulate of the baseline of signal
本文以msp430f149晶元為控制器，設計硬體電路提取脈搏波信號，連續檢測脈搏波峰?峰值，計算氧飽合度。本課題採用了基線自動調節電路，以克服不同人體生理差異引起的基線漂移；設計了直流截取電路和可控積分放大電路，以滿足臨床連續監測的特殊需要，解決信號飽和問題。 -
The vibration source identification was realized in this paper by analyzing and comparing the train ’ s and the bogie ’ s lateral acceleration. the proposed method can divide into four steps : first adopting the acceleration ’ s peak - peak value entropy comparison method, second peak - peak value cross correlation comparison method, third peak - peak value weight center position comparison method, and the last adopting peak - peak value max - value position comparison method, if still unidentified refuse it
分為四個步驟:首先用加速度的峰峰值熵比較法進行判別，如果不行則用加速度峰峰值互相關比較法進行判別，如果不行則用加速度峰峰值重心位置比較法進行判別，仍然不行最後用加速度峰峰值最大值位置比較法進行判別，如果仍然不行則拒絕判別。
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