two-channel theory 中文意思是什麼

two-channel theory 解釋
雙通道學說
  • two : n. （pl. twos）1. 兩人；兩個東西，一對。2. 二的記號。3. 兩點鐘。4. 兩歲。n. -ness
  • channel : n 1 水路，水道，渠，溝；海峽；河床，河底。2 （柱等的）槽，凹縫；【機械工程】槽鐵，凹形鐵。3 〈比...
  • theory : n. 1. 理論，學理，原理。2. 學說，論說 （opp. hypothesis）。3. 推測，揣度。4. 〈口語〉見解，意見。
  1. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義
  2. Chapter two is data sample of system. it will discuss the data conversion theory, 24bit e - a data conversion, mux - channel switch sampling technology, and emc design. among them, we will introduce the principle and application of ads 1251, application of photomos technology in mux - channel switch sampling, and emc design with hardware and software of gas feed controller, which has good performance in reliability

    第二章介紹系統的數據採集，該部分包括24bit -采樣原理、多路信號切換採集技術和電磁兼容設計，其中，主要介紹了ads1251晶元的工作原理和應用， photomos技術在多路信號切換采樣中的應用，以及配氣控制器在硬體、軟體等方面所做的電磁兼容設計，通過這些設計使得系統具有很好的穩定性和抗干擾性。
  3. A method of communication between two arbitrary units in a scatternet is presented in this paper ， and then the performance of all kinds of packet in different channel are analyzed. at last, a set of bluetooth terminal is introduced. this works can provide theory basis and design reference for the application of bluetooth

    本文研究分析了一種藍牙鬆散網中任意兩個單元進行通信的方法，研究了藍牙各種基帶數據包在不同誤碼率通道中的傳輸性能，最後介紹了我們研製的一套藍牙數據傳輸終端，為藍牙技術的實際應用提供了理論依據和設計參考。
  4. The practical experiments of the designed intelligent two - wire valve present a good preferment. we model the power - line channel in chapter 4 as the experimental result shows that the power - line channel condition has civilizing influence upon the valve ' s communication performance. here, we establish power - line resistance model base on theory of transmission line

    在實驗中我們發現電力線通道特性的變化對智能二線閥系統的性能有著比較明顯的影響，從研究的系統性出發，同時，也是作為從物理實踐到理論研究的一個重要步驟，我們在第四章中對電力線通道建模和電力線載波通訊進行了模擬研究。
  5. Modeling and classification of two - channel elctromyography signals based on blind channel identification theory

    基於盲辨識理論的雙通道肌電信號建模與分類
  6. In the second part, introduces the theory of wireless lan based on the ofdm, supplies the corresponding simulation analysis by systemview software, compares two channel coding by simulatation, gives a advice to use convolution coding, and analyses its ber

    第二部分通過分析無線局域網的基本原理，以及採用模擬軟體分析了ofdm在無線局域網中的應用。通過模擬比較了兩種通道編碼的性能，並做了相應的誤碼率分析，得到了有用的結論。建議採用卷積編碼。
  7. In the paper, an overview of transpiration cooled platelet and micro - scale theory is presented. the velocity slip model and the temperature jump model for the research on flow and heat transfer in the platelet micro - channel are developed. while programs developing, two dimensional temperature distribution of the fluid in the channel and one dimensional temperature distribution of the platelet are obtained

    本文對層板發汗冷卻技術和微尺度理論進行了綜述，建立了溫度跳躍和速度滑移的微尺度研究模型，通過編寫程序，得到了微小通道內流體的二維溫度分佈和結構層板的一維溫度分佈。
  8. This protocol uses the theory of pu blic - key to build a security channel, and then uses the secret session - key to encrypt the data. the security protocol can assure that the data is transported in security through the link. finally, the author described two cipher algorithm which used in t he encryption module

    該協議結合單鑰加密體制和雙鑰加密體制的優點，利用雙鑰體制對通信雙方進行身分認證並確定每次會話的會話密鑰，然後使用會話密鑰對傳輸數據進行加密，從而保證了通信數據在線路上的安全性。
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