selected differential 中文意思是什麼

selected differential 解釋
選擇差數
  • selected : adj. 挑選出來的；精選的。
  • differential : adj 1 差別的，區別的；特定的。2 【數學】微分的。3 【物、機】差動的，差速的，差示的。n 1 （鐵路不...
  1. Output can be obtain, next we use our designed the wavelet soft threshold to select result of the wavelet transform, finally, we give the selected result reversal wavelet transform. it is obvious : the wavelet soft threshold is important to improve the quality of the gray image processing. i give the donoho wavelet soft threshold a modified value method, which has a relation with ratio of signal - noise. i made full use of discrete hop field single feedback neural network, and nonlinear steady of automatic system at last, i obtained a steady limited ring, give the energy function an order differential a optimal

    我的思路是：改造現有圖形結構，先建立能反映信噪比大小且含待定參數k的表達式，然後通過離散型h0pfi舊單層反饋神經網路，再結合前邊的混合濾波器構成一個非線性控制系統，寫出對應的網路函數，利用相平面法和李雅普諾大穩定性的判據，得到一個穩定的極限環，從而確定出參數卜的范圍，進而再對原來的小波軟閾值進行修正，用修正後的值作為小波閾值。
  2. Measurement precision contribute to improving the security class and economic of boiler running and automatic level of whole plant. the smart measurement instrument of the boiler ’ s air flow designed in the thesis and the instrument can make the degree of accuracy get to. firstly, the thesis build the “ velocity - area ” method which is on basis of “ log - tchebycheff ” on the analyzing of basic measure method of boiler ’ s air flow. secondly, model86 averaging pitot tube was selected the right model of flow transducer which can pickoff the differential pressure and static pressure. modelc264 which made in setra system corp. u. s. a was selected as ultra low differential pressure transmitter. a good flow of boiler ’ s air was calculated by offsetting pressure and temperature. finally, numeroscope was designed with z80cpu and other chips

    精確的監測有助於提高鍋爐燃燒的安全型、經濟性，也有助於提高電廠的整體自動化水平。本文設計的智能化鍋爐風量測量裝置能夠實現對鍋爐送風的精確測量，精度可達。本文首先研究鍋爐送風矩形大管道測量理論，提出在流來流量測量測點布置基於「對數-切比雪夫」法的速度-面積法。
  3. Differential screening for the library revealed that, 167 of 237 clones randomly selected from the library are positive and represent genes that were exclusively or intensively expressed in bract, which contain inserts ranging from 100 to 2000 bp in length. moreover, except a few clones were expressed predominantly in bract, absolute majority of subtraclive clones were expressed at low level in all checked organs, i. e., bract, leaf and root

    用地高辛標記的珙桐苞片、葉片和根的cdna做探針，與差減雜交所獲得克隆的pcr產物的雜交結果表明，有少數基因在這些器官中都是大量表達，而大多數在這些器官里的表達量均很少，除苞片外，一般均檢測不到，有部分基因在苞片中優勢表達。
  4. To ascertain how to produce differential pressure reasonably during the course of high temperature and pressure gas well testing, we must consider synthetically the following situations : both liquid in well bore and solid phase particles of mud in strata can be carried out through airflow ; we must avoid sand production out of borehole walls and make the selected differential pressure meet the demands of the testing instrument capability ; the calculation of differential pressure when no sand comes out of strata covers the calculation of strength of rock of borehole walls and airflow velocity, etc

    摘要高溫高壓氣井測試中合理生產壓差的確定需要綜合考慮使氣流能夠在井筒中攜液、返排侵入地層中的泥漿固相顆粒、避免井壁出砂、滿足測試工具性能要求等；地層不出砂壓差計算還涉及到井壁巖石的強度計算、氣流流速計算等。
  5. Realizing the auto - selected mating of differential chain change gear in the gear processing by self - programming

    用自編程序實現齒輪加工差動鏈掛輪的自動選配
  6. Thus, the inner parts are found which are the main factors of the total accuracy loss. this result can offer the basis to improve the design of dynamic measurement system and to increase its measuring accuracy. in order to prove the theory of the error tracing and accuracy - loss diagnosis of the dynamic measurement, two simple measuring system are selected, that is, pressure transducer system and the dynamic measuring system based on differential mutual inductive displacement transducer

    根據建立的動態系統誤差模型，以誤差溯源結果為依據，用bp神經網路分析方法，求得系統各組成單元的精度損失規律，建立其精度損失時變模型，從而找出對測量系統的總精度損失影響較大的內部組成單元，為改進動態測量系統的設計、提高其測量精度提供依據。
  7. According to the short lasting time of the vibration above, the maximum transient vibration value of the acceleration is selected as the comfort index, which is also the criterion to decide if the differential settlement is tolerable

    由於該振動是持續時間很短的瞬態振動，振動舒適性指標採用人的加速度最大瞬態振動值mtvv ，它也為橋頭跳車嚴重與否的衡量標準。
  8. The main idea makes use of daubechies orthonormal bases to transform the differential equations into linear equations in wavelet space, and then solve the set of simultaneous equations to get the solution, transform the solution back into physical space to identify the moving loads or the prestressing force. numerical simulations demonstrate the efficiency of the method using selected measurements

    該方法的思路是先對車橋系統進行有限元建模，再利用小波基將動力學方程導入小波空間，求解關于響應與載荷的小波系數的線性方程組得到載荷小波系數，重新導入到物理空間求得所需識別移動載荷。
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