attenuation theory 中文意思是什麼

attenuation theory 解釋
衰減說
  • attenuation : n. 1. 變薄,變細。2. 減少,減弱。3. 稀釋。4. 【物理學】衰減。
  • 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. The theory of noise attenuation by patterns is the same whether applied to the shot or the geophone end of the wave trajectory.

    應用組合方法壓制噪聲的原理,不論對炮點還是對栓波器波的軌跡終端都是一樣的。
  2. Based on the theory of the extended fractal dimension, this paper studied the attenuation level of self - similarity of various map objects with the variety of the map scale, and researched further the relationship between the scale level factor of map features and fractal attenuation

    以擴展分維作為理論基礎,從變維分析的角度出發,研究地圖目標的自相似程度隨比例尺變化而衰減的規律,進一步研究地圖目標的尺度指標與分形衰減之間的關系。
  3. The optical rotation in er fluids is studied thoericaly. considering the different attenuation in different direction and the theory of light transmission, i derive the expression of rotation angle as function of the angle 6 ( between the electric vector of linearly polarized light and electric field ) and other parameters on the condition of several appropriates and assumptions

    考慮電場作用下電流變液中不同振動方向的線偏振光衰減不同,根據光波在介質中的傳播理論,推導出光通過電流變液的旋光角與(入射線偏振光振動方向與外加電場方向的夾角)及其它參數的關系表達式。
  4. After that, a fuzzy neural network control design with mixed performance was proposed aiming at different requirement to uncertainty, which separately compensate parameter uncertainties and external disturbances of robot system. this method can ensure the robust stability that under a prescribed attenuation level for the external disturbance, and also strengthens compensation to parameter uncertainties. the theory of hybrid force / position control is clear, however, it is difficult to implement

    針對實際應用中對不確定的不同要求,又提出了一種具有混合/性能指標的神經網路控制方法,對機器人不確定性(包括參數不確定性和外部擾動)分別進行補償,保證了系統對外界干擾在給定的干擾衰減度下具有魯棒穩定性的同時,還增強了系統對參數不確定性的補償。
  5. The theory and experiment of measuring diffusion coefficients in terms of mr signal attenuation has been established for decades, but recent advance of diffusion tractography has enabled us, for the first time, to visualize and analyze the axonal fiber tracts in the living brain non - invasively

    其實,利用磁振訊號衰減量測到擴散系數之理論與實驗已確立了幾十年,但近年來擴散神經纖維束造影的發展,第一次使我們能夠在活體非侵襲性的觀察和分析神經軸突纖維束。
  6. This paper is based on the theory of environmental science, systematology and noise control engineering. noise control system and comprehensive harness of fan room have been researched. by the investigate, and measure of fan room noise. sound production principle, acoustics characteristic and the law of attenuation propagation have been analyzed. thus, the sound field model of fan roo has been put for put forward ward

    本文以環境科學、系統科學和噪聲控制學為理論基礎,對風機房噪聲控制系統及其綜合治理進行研究,通過對風機房噪聲污染調查監測,分析其發生機理、聲學特性和傳播過程衰減規律。
  7. In this paper the train running noise level has been predicted with the theory of point sound source. the sound exposure level of a train set pass, equivalent continuous sound level and maximum sound level of a train set pass has been taken as estimate values, and some kinds of affixation attenuation on the course of noise propagation is considered, then the corresponding visual software has been developed. these make it convenient and precise to predict the noise level

    本文從點聲源的理論出發,對列車運行噪聲進行預測計算,採用一列車通過時的單發暴露聲級、時間特性的最大聲壓級和一定時間內的等效聲級等作為噪聲評價量,並考慮了噪聲傳播過程中的各種附加衰減,編制了相應的可視化軟體,使噪聲預測計算方便、準確。
  8. According to structural characteristics of multi - phased alloy steels and the properties of ultrasonic propagation, microstructures characterization with different heat treatment processes ( normalizing, quenching / annealing, quenching plus low tempering, quenching plus high tempering ) for three steels ( 40cr, 38crmoal, gcrlssimn ) was studied experimentally by using ultrasonic methods. ultrasonic velocity, relative attenuation coefficient, and power spectral analyses were researched on the same samples respectively, on the basis of theory and experiment, the sensitivity and other characterizations of the three methods used to distinguish different microstructures were compared

    根據具有多種相結構合金鋼不同熱處理轉變產物的組織特點,以及超聲波在其中的傳播規律,利用超聲波速度、相對衰減系數以及功率譜分析三種方法,對三種鋼( 40cr 、 38crmoal及gcr15simn )不同熱處理(正火、淬火退火、淬火+低溫回火及淬火+高溫回火)轉變產物的顯微組織進行了超聲表徵研究。
  9. Based on the technical difficulties in data acquisition, processing and interpretation, especially the difficulties in acquisition stage, combined with the feasibility and present situation in acquisition technology research, started from wave propagation theory, this article studies the absorption and attenuation of the effective wave and gets three basic recognitions

    本文較全面分析了深層地震勘探枝術從資料採集、數據處理、資料解釋中存在的技術難點,突出了原始資料採集中的困難,結合開展深層地震勘探技術研究的可行性和發展現狀,從波的傳播規律入手,通過理論模型計算,研究了有效波傳播的吸收與衰減問題,取得了三點基本認識。
  10. Finally a new theory about energy delivering in hollow waveguide is given. in this theory the input attenuation in both straight and bent hollow waveguide

    在這一理論體系中,我們得到了空芯光纖的輸入特性和光纖直線狀態下與彎曲狀態下的損耗公式。
  11. According to experiment result of filled fluid structure, analyze the attenuation instance of explosive wave crest value on the instance of infused fluid and no infused fluid, and put up elementary theory analysis, calculate result and experiment result receive better agreement

    根據注液結構爆炸實驗結果,分析注液和沒有注液兩種情況下的爆炸波波峰值的衰減情況,並進行初步的理論分析,計算結果和實驗結果得到了較好的吻合。
  12. In this paper, the theory for attenuation correction has been studied and advantages and disadvantages of several algorithms for applications have been analyzed. further more, some of them have been applied on real data

    本文從衰減訂正演算法的理論研究入手,詳細探討了幾種衰減訂正演算法的優缺點,並在實際資料中對幾種演算法進行了應用。
  13. Those kinds of waveguide have got the ability that could be used to deliver high energy ir light with low attenuation. but these attenuation phenomena ca n ' t be explained by current theory about character in hollow waveguide

    雖然這些光纖已經被廣泛用於在較低損耗下傳輸紅外激光能量,但是現有的關于空芯光纖的傳輸理論還不能很好地解釋空芯光纖中的損耗與模式特性。
  14. In addition, concrete inner defects are identified based on two different physical parameter, velocity and attenuation, which will greatly increase precision and reliability. in conclusion, the developed ct technique of ultrasonic for concrete non - destructive test is of great significance in both theory and practice

    在利用速度反演得到混凝土聲速和衰減反演得到混凝土吸收系數的基礎上,本文根據聲速和衰減兩種不同的物理參量判別混凝土內部缺陷,可大大提高缺陷判別的精度和可靠度。
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