提水采樣 的英文怎麼說
中文拼音 [dīshuǐcǎiyàng]
提水采樣
英文
dip specimen-
Stability testing and compare of the hydroextracting the dark brown pigment from walnut epicarp of dry in the sun and by the airing and retting
摘要將同一采樣點的樣品分別曬乾、晾乾、漚干后，以水為萃取劑，提取棕褐色色素，並對其穩定性進行了測試與比較。Experimental results demonstrate that the algorithms are robust and imperceptive at the attack of noise stain, low - pass filtering and sampling again
模擬實驗表明，本課題提出的各種演算法能有效地抵抗白噪聲污染、色噪聲污染、低通濾波和重采樣對水印的攻擊。Parallel structure of poly - phase decomposition and parallel mixer is applied in the ddc circuit, it solves the bottleneck in mixing and increases the handle speed. the partition of the tuning channel according to the digital mixing sequence, and the ddc by means of decimating first, the low - pass filtering and mixing realize efficiently the down - conversion of the variable carrier frequency band - pass signal. according to the structure of the ddc and the requirement of the frequency
短數據快速測頻演算法的具體實現:使用并行流水線的設計方法，提高了系統的數據吞吐率，在100mhz的系統時鐘下，能夠實時處理400mhz ~ 600mhz速率a / d采樣的數據，在64點采樣， 100mhz系統時鐘情況下，初次測頻佔用時間640ns ，以後每次測頻佔用時間縮短到160ns ，實時地提供多相濾波下變頻所需的載頻位置信息，縮短了接收機的調諧時間。At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss
然後對現有的演算法進行了詳細的分析、比較，篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案，確定了準同步采樣的方案，並通過對準同步采樣誤差的分析，提出了一種從45開始采樣，從而提高精度的采樣數據處理辦法，同時，對于電流互感器相位漂移提出了一種補償辦法，接著對裝置中電能質量分析與統計以及無功補償中電容器的補償量、投切原則也作了相應分析，其中對于無功補償採用y混合接線，並利用交流接觸器和固態開關共同投切電容，不但提高了經濟運行水平、改善了電能質量，而且有效的避免了頻繁更換開關，減少了經濟損失；最後，設計了裝置的硬體電路並繪制了相應的軟體流程圖。Such concentrated deposits ought to make underwater mining highly efficient
這樣的集中式分佈可以使水下開采效率大大提高。In the paper, the gpr system developed by us employs several optimization techniques to enhance the system performances, including antenna, sampling - hold circuit, orientation wheel, function of system software, multithreading, and signal processing algorithms. as the result the system works more well with these techniques, and its azimuth and distance resolution of 10 cm has been achieved with detection depth of more than 50 cm. the main contents of this dissertation are summarized as following : 1
本文根據探地雷達系統工作原理，在電子科技大學探地雷達系統樣機研製的基礎上採用了各種有效的優化技術，包括探測前端、采樣保持電路的優化，定位輪、目標定位、多線程技術的應用，數據採集處理和控制軟體功能的拓展、各種有效的信號預處理演算法的應用等，顯著提高了系統的探測性能和增強了探測效果，使得系統方位、距離解析度均達到了10cm ，探測深度大於50cm ，其性能指標達到國外先進水平，為進一步的實用化奠定了重要的基礎。I a study on the comparison between quantitative and semi - quantitative sampling methods for stream macro - invertebrate assemblages quantitative sampling method for stream macro - invertebrates is well used in stream ecological study, and semi - quantitative method is widely used in water quality bio - assessment. the results from comparisons of the number of species, individuals and values of metrics between the two methods were showed as follows : 1
對定量采樣法和半定量采樣法在個體數、種類數和種類相似性及生物指數等方面關系的研究，為探討半定量采樣法的科學性和實用性，進一步完善水質快速生物評價采樣法（半定量采樣法）提供科學數據。We stretch a consumptive optic fiber into the molten metal and take the light signal from it, then transform the optic signal into electric signal and amplify the signal. send the signal into scm, use the scm to convert the signal into data and display the true temperature of the molten metal
具體的步驟是先將消耗型光纖插入熔融金屬提取光信號，在將光信號轉換為電信號並作放大，放大后的信號經過采樣濾波等處理后經單片機進行顯示，得到鋼水內部的真實溫度。It also studies the influencing factors including sampling frequency, pd waveform, decline time, time intervals between pd pulses, mother wavelet, center frequency of interference, entropy threshold value and snr. in addition, it applies wavelet packet method （ wpm ） for non - stationary signal de - noising in on - line pd monitoring and analyzes the processing results under different pd waveform, sampling frequency and noise level. firstly, the curve of pd
基於小波包變換的非平穩信號消噪演算法（ wpm ）已較為成熟，本文將其應用於局部放電在線監測，通過研究其對不同局放波形、采樣率、噪聲水平下的處理效果，首次提出了理想白噪聲條件下提取局部放電信號的曲線，分析了各種因素對該演算法下信號失真的影響。The thesis also introduces the virtual instrument ’ s concept, system architecture, etc. the development of virtual instrument ’ s application software is discussed in detail. it includes virtual instrument software architecture ( visa ), and virtual instrument ’ s software platforms. the thesis discusses the principle and mechanism of work of the simulation of embedded system. by comparing with the principle of traditional logical analyzer, it draw a conclusion that the virtual logical analyzer will work in synchronous way when it is used for both logical state analyzer and logical time analyzer. the thesis
論文接著探討了嵌入式模擬平臺的原理和工作機制，通過與傳統邏輯分析儀原理的比較，得出了嵌入式模擬平臺下邏輯分析儀無論是做定時分析，還是做狀態分析都工作在同步方式下;並重點剖析了探頭原理，采樣定理和毛刺，數據的建立和保持時間等邏輯分析儀的重要技術指標，得出了虛擬環境對虛擬邏輯分析儀的功能和各項技術指標的影響，還提出了流水線狀態表的思想和實現機制。The floating - point a / d conversion scheme was employed to increase the system ' s dynamic range. complex programmable logic device ( cpld ) was also used to perform the system ' s function such as data sampling trigger control and data storage control, etc. aduc812, a new type of microprocessor with full a / d converter, was utilized to fulfill the a / d conversion
在數據採集電路設計中，採用了浮點放大技術來提高系統的動態范圍；通過引入可編程邏輯器件來實現觸發控制、存儲控制；采樣過程中應用了時序重疊技術，從而實現了數據採集系統的流水線作業方式。Under 0. 35um si - cmos process, considering the trade off of accuracy and speed in the adc, 2. 5 - bit were converted in the first stage of the pipeline. using the improved calibration scheme and full difference structure and bottom - plant sampling technique to reduce the errors of the 10 - bit ( 2. 5 + 1. 5 5 + 3 ), 100msample / s pipeline adc
在0 . 35 m工藝水平下，通過折衷考慮提高系統線性度和降低功耗的要求，將流水線第一級精度取為2 . 5位，採用改進的冗餘位演算法，並結合全差分結構，下底板采樣等技術對一個（ 2 . 5 + 1 . 5 5 + 3 ）結構的10位100msample / s流水線adc系統進行校正。分享友人