peak response 中文意思是什麼

peak response 解釋
峰值響應
  • peak : vi 1 瘦弱;消瘦,憔悴。2 減少,縮小 (out)。n 1 山峰,山頂;孤山。2 (胡須等的)尖兒;尖端。3 最...
  • response : n. 1. 回答,答復。2. 【宗教】應唱聖歌。3. (因刺激等引起的)感應,反應,反響;應驗;【物理學】響應;【無線電】靈敏度,感擾性;特性曲線。
  1. 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。
  2. When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer

    2 )耕作制下紫色土的產流主要機制是: 1 )當雨前土壤含水量未達到飽和狀態時,表面產流起始時間有明顯滯后現象,這與紫色土的快吸水性和較多非毛管孔隙密切相關;當雨前土壤較乾燥,降雨初期雨強較大時,易形成臨時相對不透水表層,表面產流峰也有明顯滯后現象。 2 )表面徑流的產流方式主要是超滲產流,當土壤達到飽和狀態后,有四川大學博士學位論文小部分回歸流發生,但主要是飽和超滲產流發生,因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 )壤中流主要是飽和產流,與降雨過程有明顯的滯后,而且雨停后的壤中流產流歷時與降雨特徵無關。
  3. The elastic and elastic - plastic calculation models of slope earthquake response are erected by the commerce software - - - flac. the distribute regularity of peak

    建立邊坡彈性和彈塑性模型,分析了邊坡內部質點沿高度方向的加速度峰值放大倍數分佈規律。
  4. Diurnal and seasonal changes in tr of ceratoides spp. displayed typically a single peak. tr was higher and response was more sensitive to environmental factors in ceratoides spp

    與霸王( zygophyllumxanthoxylum )和沙拐棗( calligonumrubicundum )相比,駝絨藜屬植物及檸條( caraganakorshinski )的蒸騰速率較高、對環境反應較敏感。
  5. General in biochemical analyser test process, firstly, use biochemical reactions hin color response to statistical samples in a particular wavelength solution with the greatest absorption peak, and then use ultraviolet and visible spectroscopic measurements to test the absorbency of material to the specific wavelength, the final adoption of bill law to calculate the corresponding material concentrations

    由於利用了以上先進技術,儀器的測量速度和精度都有了大大的提高,目前新型生化分析儀0 . 2秒即可完成一個樣本點的測量,並已經成功實現了雙波長測量法,提高了測量結果的精度。
  6. Pulse response characteristic of a quasi - peak voltmetre

    準峰值電壓表的脈沖響應特徵
  7. A hysteresis - band instantaneous current control pwm technique is popularly used because of its simplicity of implementation, fast current control response, and inherent peak current 1 imiting capability

    瞬時電流滯環控制技術由於實現簡單、響應速度快和具有自然限流等優點而得到廣泛應用。
  8. Flow - mediated dilatation response normalized to peak shear rate was significantly lower in migraine patients than in controls, the report indicates

    報告指出,流量介導的肱動脈擴張與標準的高峰速度階差相比,偏頭痛病人擴張流量低於對照組。
  9. All the chromatograms ( received ) i. e resolution solution, 3 standards, rifampicin dilute test soln., assay solution are chromatographed at the responce of 0. 18 au but only the chromatogram of test preparation showing impurities is chromatographed at the response 0. 44 au to hide the unseparated problematic impurity peak

    我們在分析時得到了額外的未分離的峰、對峰或裂峰(在中方人員面前當場試驗,甚至使用中方人員的色譜柱和分析方法時也是如此) ,這些色譜圖在保留時間為2 . 42和2 . 54分鐘時也呈現出額外的未分離的峰、對峰和裂峰,與雜質的其它峰相比,這些峰的峰底寬不相上下。
  10. According to the need of design code for anti - seismic of engineering constructure, the bedrock peak acceleration rate and response spectrum of exceeding probability of 63 %, 10 % and 2 % are given respectively and seismic motion parameters are also calculated, which will provide the evidences for anti - seismic design of this electric power equipment station

    按工程建築物抗震設計規范要求,分別給出了50年63 % 、 10 %和2 %超越概率水平的基巖峰值加速度及反應譜,計算出地震動參數,為該電力設備站建設提供了抗震設計依據。
  11. The implementation of peak and valley time price for electricity and the response of large industries

    峰谷分時電價的實施及大工業用戶的響應
  12. The response of the glucose electrode is surveyed by determining cyclic voltammetric peak current values under aerobic solution conditions. electrocatalytic oxidation of glucose at the electrode is evaluated with respect to temperature, ph value of solution and concentration of tris ( 2, 2 ' - bipyridyl ) cobalt ( iii ) perchlorate

    實驗用循環伏安法測定有氧溶液條件下葡萄糖在該生物傳感器上產生的催化氧化峰電流,考察了溫度、溶液ph值和co ( bpb濃度對傳感器的電流響應性能的影響。
  13. In addition, effects of several factors such as local site conditions, focal mechanism, epicentral distance and seismic magnitude on these parameters are discussed, and several significative results and conclusions are obtained. in all records there are about 1 / 3 vertical ground motion ’ s peak acceleration bigger than 2 / 3 of the corresponding horizontal one, so the action of vertical ground motion should not to be underestimated. vertical design response spectrum equals that the horizontal design response spectra times 65 % is probably unsafe when period is short, and suggest adopting different coefficients when at different periods

    本文基於對大量歐洲強震記錄的研究,分析了地震動豎向與水平向分量在峰值加速度、反應譜值、頻譜周期等參數方面的差異,以及這些參數與場地、震源機制、震級和震中距的關系,得到了以下有意義的結果和結論:在本文分析的地震記錄中大約1 / 3的記錄加速度峰值比大於2 / 3 ,豎向地震動分量的作用不可低估;在短周期,豎向地震動影響系數的最大值僅取為水平向地震動影響系數最大值的65 %是偏於不安全的,可以考慮按周期分段採用不同的折減系數;我國現行抗震規范中設計反應譜特徵周期的取值偏低,可能是偏於不安全的;豎向與水平向地震動分量卓越周期的比值在0 . 7 - 0 . 9之間,豎向設計反應譜的特徵周期應有單獨規定。
  14. Through analyzing bed ' s response to wave, in the condition that super - stratum is more hard and second - stratum is more soft in region of interest, super static interstitial hydraulic pressure amplitude die away rapidly between stratums, before in sight of boundary between hard and soft stratum, plane effective pressure increase to max. shear stress reach peak value when bed thickness is approximately 2. 7 meters, then it will decrease to the minimum on the place where the flexible soil has a common boundary with the rigidity, so the boundary is the most destroy plane on engineering. on the basis of reconnaissance in situ, in normal situation of sea, the structure slides to the basin along the boundary

    通過對底床在波浪下的響應分析,對于研究區底床上層較硬而第二層較軟的情況,超靜孔隙水壓力幅值在層間交界處迅速衰減,在臨近硬、軟地層交界處前,水平有效應力增至最大,剪切應力在底床厚度大約2 . 7米左右達到峰值,然後減小,到硬、軟層土交界位置,達到最小,因此這個界面就是最容易發生破壞的工程軟弱面,現場勘查證明,即使在正常海況下,構築物也會沿坡以此交界面為滑動面,緩慢向「盆」底滑動。
  15. For the single degree of freedom systems, the randomicity of mass and stiffness can considerably weaken the peak value of frequency response functions

    用monte - carlo數值模擬技術對含隨機參數結構頻率響應函數進行分析。
  16. This paper relates to some problems about the determination of design ground motion parameters, which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum, the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves, the choice of intensity envelops function and random input phase, the choice of soil nonlinearity and shear wave velocity, scale of design ground motion response spectrum etc. in the researches of relative aspect, based on a typical section plane of the engineering site, influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization

    摘要研究了確定設計地震動參數中涉及的若干問題,其中包括基巖水平加速度反應譜衰減關系的選擇、震源深度對基巖水平加速度峰值及基巖反應譜曲線的影響、強度包絡線函數及輸入隨機相位的選擇、土體非線性特性參數和土層剪切波速值的選擇、設計地震動反應譜的標定等問題。
  17. The meaning of cqc ( t ) algorithm is the difference in time domain between the peak value location in time axis of input earthquake and model response of structure, which is called delay time. through the delay time calculating of a series of oscillators with different damp ratio and natural vibration frequency, it is found that it will bring biggish error if the cqc algorithm applied on the structure which has long period, and the time dependent cqc ( t ) algorithm could solve the problem easily

    Cqc ( t )方法的意義在於輸入地震動峰值與結構模態響應峰值在時間軸上的時間差,我們稱之為延遲時間,通過計算具有不同周期和阻尼比結構的延遲時間,發現對于自振周期比較長的結構, cqc方法會帶來比較大的誤差,而基於時程的cqc ( t )方法能夠解決這個問題。
  18. The increase in peak response and spontaneous activity resulted in a significant decrease in signal - to - noise ratio for old cats

    由於老年貓v1區細胞自發放增加的幅度大於誘發反應的增加,導致了其信噪比的顯著降低。
  19. Neurons of old cats, compared with those of the young, showed a significant decrease in orientation and direction selectivity accompanied by an increase in peak response as well as increased spontaneous activity

    結果發現:與青年貓相比,老年貓v1區細胞呈現出明顯的方位和方向選擇性的下降,並伴隨著誘發反應及自發放的增加。
  20. Decreased stimulus selectivity and increased peak response indicated that more v1 neurons of aged cats can respond well to stimuli with previously optimal or non - optimal orientations and directions

    刺激選擇性的下降和誘發反應的增加表明老年貓v1區細胞對最優方位、方向和非最優方位、方向的刺激均有較好反應。
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