共振角 的英文怎麼說
中文拼音 [gòngzhènjiǎo]
共振角
英文
resonance angle-
Therefore, when a cancer patient has sudden hearing loss, an mri scan should be carried out to confirm cpa metastasis or meningeal carcinomatosis
故當癌癥病人出現突發性聽力喪失時,必須安排核磁共振檢查以排除小腦橋腦角轉移或腦膜性癌的可能性。In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術,有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應,提高了聚合物大分子鏈中有機硅鏈節的含量;利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵,並通過對共聚產物力學和吸水率的測試,證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能;從分子設計角度出發,利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體: ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷;利用核磁共振對新型硅烷單體結構進行了證實;研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液,且其聚合產物具有較高的力學及耐水性能。E., the carrier frequency of a gaussian beam deviates from the resonant frequency of a fabry - perot etalon ), variations of the peak intensity, the position of the peak intensity and the dwdm systems, has received considerable attention. in this work, after taking into account the wavelength - depended reflectivity distribution profile of a fiber bragg grating, the oscillation wavelength # _ ( 1 ) of long external cavity fiber bragg grat
與共振情況(即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率一致)相比,非共振條件(即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率存在偏差)一透射光束的峰值強度、峰值強度所對應的位置、以及光斑的大小隨入射角的變化都發生了顯著的改變。The triangulated mr brain surface is drawn in yellow
三角型化的磁共振腦表面在圖中用黃色畫出。Based on the potential resonance in heavy - ion collisions, the anomalous phenomenon of the backward - angle oscillatory arising in the angular distribution for 16o + 12c elastic scattering have been studied within the framework of the optical model using a deep optical potential
摘要基於重離子碰撞中勢共振的考慮,在光學模型的框架下,使用深光學勢研究了16o + 12c彈性散射角分佈后角振蕩上升的反常現象。Although this may be sad from a physical point of view, all nonphysical forces shall retract and carry on, returning to those creations that they are resonant with for their own return cycle ahead
盡管從物質層角度來看這很悲慘,但所有的非物質力量都將撤回而繼續前進,回到它們共振的造物而在前方周期中演化回家。2 ) the carotenoids successfully probed in nacre by in situ resonance raman spectra, are considered one of the most important factors responsible for the coloration of nacre and pearl
2 )採用共振拉曼光譜首次成功地原位探測到三角帆蚌及馬氏珍珠貝珍珠層中類胡蘿卜素的存在,並提出類胡蘿卜素是珍珠層致色的重要原因之一。2. using the simulation method and a lorentzian oscillator model, the influence of the deviation in experimental parameters, including the thickness of samples, the incident angle, the misalignment of the time delay line, the background noise and the laser noise is analyzed
二、首次利用模擬thz輻射脈沖入射到共振吸收的樣品上的方法分析了厚度、角度、平移臺錯位、背景噪聲及激光器噪聲等對于光學常數測量產生的影響。The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity
在分析點光源激勵聲表面波機理的基礎上,求出了線光源激勵的超聲振動的位移表達式,發現線光源激勵的近場區表面波具有波形好,信噪比高,指向性好,幅度強等特點。通過理論推導,得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比,並與入射角和散射角有關;適當減小cfpi的帶寬,增加腔長,增大鏡面反射率,或者減小檢測入射角都可以提高系統的信噪比。Stochastic resonance has attracted the attentions in many fields of science in recent decades, but it is a new method and theory in signal processing. in context of signal processing, for signal transmission by nonlinear systems, stochastic resonance is commonly described as an increase hi the signal - to - noise ratio ( snr ) at the output, which is obtained through an increase of noise level or tuning system parameters
從信號處理的角度來講,隨機共振是在非線性系統信號處理中,輸入為強噪聲背景下的微弱信號,系統輸出以適宜的物理量來衡量,如信噪比,通過調節輸入噪聲強度或系統參數,都可使得系統輸出信噪比達到一個最大值,此時,稱信號、噪聲和非線性系統所產生的協同現象為隨機共振。They act as an intermediary transducer, much as a tuning fork which when struck, and then being brought into proximity of another tuning fork, will start the second fork to begin vibrating also
他們擔當了中間媒介變換器角色,非常像受了敲擊的音叉,緊接著就引起了另一個音叉的共鳴,就會引起第二個音叉也同樣開始振動。This system tests 19 parameters such as the pressure of fore and after main fluid pumps and every sub fluid pumps ", force of pedal, turn angle of steering wheel, speed of every wheels and car body, and calculates 9 correlation analyses according to the gb112676 - 1999 " automobile system structure, capability and test methods " and gb7258 - 1997 " technical regulation of automobile safety ", also it can generate data report automatically
該系統對汽車制動過程中前後液壓總泵出口液壓、各制動分泵進口液壓、腳踏板力、方向盤轉角、各車輪轉速、車體速度等共計19個物理量進行測試。系統硬體由便攜式計算機、數據採集器以及相應傳感器組成。硬體設計中採用了模塊化設計思想,使得測試系統體積小、重量輕、抗振動、安裝拆卸方便、易於維護、可以進行隨車實測試驗。This topic focused on the radiation effect on the uhmwpe fiber with electron beam ( eb ) radiation. and instron, sem, atr - ir, xps, epr, xrd et al were used to characterize the structure and properties of uhmwpe fiber before and after radiation treatmentand on this condition we probed into the grafting modification with eb radiation technology
本課題研究uhmwpe纖維的電子束輻照效應,運用電子強力機、掃描電鏡( sem ) 、全反射紅外( atr ? ir )光譜、 x射線光電子能譜( xps ) 、電子順磁共振儀( epr ) 、 x射線衍射儀( xrd ) 、接觸角和交聯度測定等方法對uhmwpe纖維在電子束輻照作用下的主要結構與性能變化規律進行了表徵和分析,在此基礎上對運用電子束輻照技術進行uhmwpe纖維的表面接枝改性進行了探討。The convoluted folds of the outer ear produce differing resonances depending on the angle of the incoming sound
外耳上的皺褶可根據聲音傳入的角度,產生不同的共振。In the view of stochastic resonance ( sr ) and signal processing, parameter - turning sr ( psr ) theory and method is proposed and the characteristics of bistable systems are studied. the applications of psr in multi - frequency analog signal processing, digital baseband pulse - amplitude modulation signal transmission and digital carrier modulation signal transmission are investigated. this thesis has also introduced the concepts of parameter - adaptive sr and array - induced sr
本文主要從隨機共振物理力學機理與信號處理的角度,研究了非線性雙穩態系統的數字特徵,提出了參數調節隨機共振( psr )理論和方法,並將這一理論應用到多頻模擬信號處理、數字基帶信號傳輸和數字載波調制信號傳輸中,引入了參數自適應隨機共振和陣列隨機共振系統的概念。In order to carry out the acoustic and aerodynamics performances tests, seven resonators are designed and made, and a specialized engine intake silencer and exhaust silencers test bench was designed. the tests and analysis are performed as well. on the basis of the intake noise spectrum of sc7080a, a three - parallel - connected resonant silencer is designed, and that has efficiently controlled the acceleration noise of sc7080a
在此基礎上設計並加工了兩類七個共振型進氣消聲器,研製了發動機進排氣消聲器性能測試實驗臺,開發了發動機進排氣消聲器聲學性能測試軟體,並在該實驗臺上測試了所設計的進氣消聲器靜態工況下的傳聲損失,從實驗的角度研究了共振腔的尺寸、形狀對其共振頻率的影響及其趨勢。In particularly, the relation of the thickness of the metal layer and the surface plasma resonant wavelength and the relation of the incident angle and the surface plasma resonant wavelength based on the theory and experiments
特別的從理論和實驗兩個方面研究了金屬膜層厚度與表面等離子體波傳感器的共振波長的關系和入射角與表面等離子體波傳感器的共振波長的關系。The numerical model based on vof method gives the bragg resonance phenomena and the resonant reflection coefficient agrees well with the result of physical experiment. the numerical simulation on the interaction between surface waves and the triangle / trapezium sandbars on the seabed also shows the bragg resonance and the resonant period matches the davies " prediction
應用vof方法所建立的數學模型,在與物理模型試驗相同條件下,數值模擬反映出的bragg共振現象及得到的最大反射系數與物理模型試驗結果吻合;對波浪與三角形或梯形沙壩地形相互作用的數值模擬也較好地反映出了bragg共振現象,共振周期與davies理論預測一致。Peace avenue veterinary clinic, mri centre, g / f, 6b peace avenue, mongkok, kowloon, hong kong
03太平道寵物診所,磁力共振中心,香港九龍旺角太平道6號b地下。In this paper, we also use the transfer matrix to simplify the rotation drive system, analyzed the system natural frequency to ensure the motion frequency far away the natural frequency to avoid the resonance, debased the noise of the equipment
用傳遞矩陣法簡化了成角和轉角驅動系統,並分析了該系統的固有頻率,確保系統運動的頻率遠離其本身的固有頻率,以免發生共振,降低整個系統的噪聲。分享友人