象輻射率 的英文怎麼說
中文拼音 [xiàngfúshèlǜ]
象輻射率
英文
radiation of image-
By introduction of two lif layers, the adjustment of the position of thin layer alq3 in the microcavity is achieved and the effect of the coupling strength between the emissive dipole and vacuum electric - field on the emission intensity in ( / 2 - length microcavity is studied for the first time
在帶有dbr結構的高q值微腔中,觀察熒光壽命變短輻射速率提高的現象。通過使用填充層,來實現對薄層alq在腔中位置的調節,研究了輻射偶極子同光電磁場的耦合強度對輻射強度的影響。To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range
地形與反射率的關系是本文研究的一個重點。本文對崎嶇山地象元的各入射光和反(散)射光分量進行了深入分析,在所提出的濕潤土壤光譜模型和植被冠層模型的基礎之上進一步提出了新的適合青藏高原的山地輻射傳輸模型。該模型同時考慮了土壤含水量、植被覆蓋( lai ) 、地形起伏和海拔高度的影響,並以象元坡面定義的半球空間立體角對環境入射光進行積分,使周圍地形和天空散射光均得到適當考慮,計算量又在可接受范圍內。Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density. several novel phenomena can be obtained. the spontaneous emission displays an oscillatory behavior, classical light localization, photon - atom bound state, nonzero steady - state population and anomalously large vacuum rabi splitting. and localized mode associated with a defect site in an otherwise perfect photonic crystals, acts as a high - q micro - cavity
通過原子上能級與光子頻率帶隙邊緣的相對位置或者光子態密度,可以抑制或增強原子的自發輻射。分析並得到了一些奇異的現象,如自發輻射的諧振子行為、光的局域、單光子?原子局域態、上能級中存在非零穩態原子布居數、類似於真空中的拉比頻率分裂等。Firstly it discusses the value, meaning, background and method of this topic. then it deducts the single - bubble sound pressure, spectrum of sound pressure, power spectrum. according to the real situation of traveling bubble cavitation noise around a schiebe body, the mathematical model of single - bubble collapse is selected, furthermore, the mathematical model of mass traveling bubbles without interference effect is established, and the multi - peaks and rebound phenomenon while bubbles collapse is also analyzed with statistical method
首先論證了本項研究的意義,價值,背景和方法,然後推出了單空泡輻射噪聲聲壓,聲壓譜和功率譜,針對回轉體流動泡空化噪聲的具體情況,選擇了雙指數模型作為單空泡潰滅的數學模型,進一步建立了無干涉條件下的群泡輻射噪聲的數學模型,並用統計的方法分析了空泡潰滅時的多峰值和反彈現象。Derived from optical waveguide fundamentals, outstanding advantages of mfld in high s / n ratio and sensitivity were theoretically presented. to resolve inconsistent change tendencies of mode - filtered light obtained in bare core sensing system and in modified sensing system, that is, the mode - filtered light signal declines with the increase in analyte ris in bare core sensing system but increases with the increase in analyte ris in modified sensing system, we started with light energy radiation theory, and obtained the details of mfld mechanism by discussing in detail the radiant energy ' s reflection and refraction at the interface, thus establishing a mathematical model of mfld. we concluded that the inconsistent change tendencies of mode - filtered light were essentially coherent
為了解決實驗中裸光纖體系與修飾光纖體系在獲取模式濾光信號上出現的不一致現象,即裸光纖體系中隨著分析對象的折射率增大,獲取的模式濾光信號呈下降趨勢,而在修飾光纖體系中分析對象的折射率增大,獲取的模式濾光信號卻是增大的,我們從光的能量輻射學入手,詳細地討論了光輻射能在傳輸路徑上的反射與透射,獲得了模式濾光信號產生的細節,以此建立了模式濾光檢測的新模式。As we all know, occupants " thermal sense is mainly dependent on the six factors : inside air temperature, humidity, air velocity, mean radiant temperature, clothing and metabolism rate. the traditional hvac control system, neglecting other factors concerned with human comfort, only considering the inside air temperature and air humidity and indirectly impacting on occupants by the two parameters control, cannot satisfy the comfort requirement of occupants and is energy wasting as well
傳統的空調控制系統以室內空氣的溫濕度作為控制對象,而實際上影響人體熱舒適的因素不僅包括溫度與濕度,還有風速、平均輻射溫度、人體的衣著熱阻和人體的新陳代謝率,人體對環境的冷熱感受是這些因素綜合作用的結果,因此在很多時候系統並不能滿足人體對熱舒適的需要而且節能性較差。In this paper, a research of spatial distribution of solar radiation and temperature over mountainous area of qinling is presented. the research is based on monthly mean temperature and sunshine ratio data of 36 meteorological observe stations over qinling zone in 1971 - 2000, and xian solar radiation data in 1961 - 2000, and 1km 1km dem data over qinling zone
本文用秦嶺地區36個氣象觀測站1971 - 2000年30年氣候整編資料的月平均氣溫、日照百分率資料, 1961 - 2000年西安日射資料,以及秦嶺地區1km 1kmdem數據,對秦嶺地區山地輻射和氣溫空間分佈進行研究。Lastly, many experiments are done on the base of simulation. output power, frequency, mode and pulse shortening phenomena of the microwave radiated from the device are analyzed during the experiment. the energy of microwave radiated from the device is calculated
最後在模擬的基礎上對該器件進行了詳細的實驗研究,分析了器件輸出信號的功率、頻率、輻射模式以及脈沖縮短的現象,同時還從能量的角度對器件輻射信號進行了分析。In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given
從光路、光學元件的自行設計到理論分析計算,初步建立了一臺實驗系統;採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量,並模擬了相關參數對展寬比的影響,對實驗具有指導意義;評價了再生放大器和多通放大器的優缺點,對放大過程中通常忽略的放大自發輻射現象( ase )進行了分析,並提出了相應的解決方法;針對放大過程中出現的增益窄化和增益飽和現象,對輸入種子脈沖提出了一種新的分段頻率調制函數,實現了對增益窄化效應和增益飽和效應的共同抑制;提出了系統的材料(包括放大介質和光路中的普通介質)正是融合高階色散的來源。Radiation characteristics were studied on curvature and arrangement of radiation reflecting cover based on system research of carbon fiber far - infrared tubular electric - heating element, which supply a design reference to obtain homogeneous steady radiation field
摘要以碳纖維遠紅外管狀電熱元件為研究對象,研究了輻射反射罩的曲率及排布位置對輻射特性的影響,為獲得均勻穩定的輻射場提供了參考。Electromagnetic compatibility ; part 2 : environment ; section 3 : description of the environment ; radiated and non - network - frequency - related conducted phenomena
電磁兼容性.第2部分:環境.第3節:環境描述.輻射現象和非網路頻率相關導電現象The characteristic of surface radiation, energy balance, albedo, bulk momentum transfer coefficient cd and bulk sensible heat transfer coefficient ch between surface and atmosphere over rainfed field are analyzed based on the data of land - surface process field experiment in the dingxi arid meteorology and ecological environment experimental station
利用中國氣象局蘭州乾旱氣象研究所定西乾旱氣象與生態環境試驗基地取得的地氣相互作用觀測試驗資料,分析了地表輻射、地表能量平衡、地表反射率、總體輸送系數等特徵。Thirdly, considering when acoustic wave with a certain frequency or angle is incident upon plates, it will greatly cause the radiation power " translating. this paper details the causes of coincident effect and gets the calculating formula. the conclusion is resulted that thick plate and uniaxial anisotropies can lower critical frequency
針對聲波入射板面時在某一特定頻率或特定入射角度時會使聲輻射能力大大增加並產生聲能的大量透射這一現象,詳細討論了產生吻合效應的條件;並針對工程實際中所應用到的各種尺寸、材質的板分別推導了其吻合頻率和臨界頻率的計算公式,得出了厚板和材料的各向異性均會使結構的臨界頻率下降的結論。But the sound field generated by this kind of transducers in medium has s ome " congenital " shortcomings : there always exist zero areas in sound - axes of near - field however we change the frequencies and radii of transducers, so we need to look for better radiate transducers. in this dissertation, we design and make two kinds of radiate transducers : bunchiness control transducer with electric polarity division and gaussian transducer
然而,這種類型的換能器在媒質中產生的輻射聲場,有其「先天性」的不足之處,在近場中無論平面活塞的頻率和半徑如何變化,軸上和沿徑向上都呈現出極大和極小交替分佈的干涉現象,因此我們有必要繼續尋求更為理想的輻射形式。Date integration technique was used to analyze the relationship between monthly mean daily clearness index kt and s, the ration of monthly mean daily sunshine duration to possible sunshine duration as well as that of monthly mean daily direct transmittance kb. based on data from 1957 to 2000, a series of kt and kb estimation models with different temporal and spatial scales were established. furthermore, the distributions of kt and kb from january to december in chongqing were mapped by kriging interpolation for long - term mean
大氣輻射過程模擬通過晴空指數、直接透射率等綜合描述大氣對太陽輻射影響的參數,採用重慶市及其周邊地區1957 - 2000年日射站觀測的月輻射資料和常規月氣象觀測資料,利用數據集群技術,建立了不同時空尺度的太陽輻射估算模式;使用kriging插值法,完成了重慶市氣候平均狀況下各月晴空指數、直接透射率的空間制圖。Taking gear case as research object, we studied the sound radiant efficiency of complex box - shape structure under practical stimulation by experiment, mainly observed the difference of sound radiant efficiency between the complex structure under practice stimulation and the known simple structure
以變速箱為對象,對實際激勵條件下箱形結構的聲輻射效率進行了試驗研究,重點考察了這種結構在實際激勵下的聲輻射效率同已知的簡單結構聲輻射效率的異同以及激勵的改變對輻射效率的影響。Plasma erosion opening switch ( peos ) is a critical device used in the pulsed power apparatus for modern radiation physics and inertial confinement fusion research. there is no perfect theoretical description or model for pegs presently, and the switching phenomena differ from system to system. in addition, there is still much to do for the improvement of performance
等離子體融斷開關( peos )是現代輻射物理和慣性約束聚變等研究領域中脈沖功率技術的關鍵部件之一,其工作機理目前尚無完善的理論解釋和物理模型描述,實驗現象因裝置的多樣性而差別較大,開關性能則有待進一步的提高。In this paper, tiris is decomposed into 3 exclusive frequency bands mentioned above by wavelet method
本文運用小波理論將地表熱紅外輻射分解為上述3個頻率成份,並結合氣象資料和地震活動進行綜合分析。In 1987, a remarkable step was made by yablonovitch, who pointed out the possibility of the realization of photonic bandgaps, localized defect modes, and their applications to various optoelectronic devices, and by john who dicussed the strong localization of electromagnetic waves in disordered photonic crystals and also predicted many interesting quantum optical phenomena that can be realized in photonic crystals such as the bound state of photons and non - exponential decay of spontaneous emission
1987年yablonovitch和john開創性地提出光子晶體這一新概念, yablonovitch指出了有可能實現光子頻率帶隙和局域缺陷模以及許多光電技術方面的應用, john則討論了在無序光子晶體中電磁波的強烈局域現象,並預言在光子晶體中存在許多有趣的量子光學現象,諸如光子局域態、自發輻射的非指數衰減。Phenomenon of the change in velocity of propagation of monochromatic radiations in a medium as a function of the frequency of these radiations
在介質中傳播的單色光改變其傳輸速度的現象,並由該輻射的頻率所決定的。分享友人