相對發光度 的英文怎麼說

中文拼音 [xiāngduìfāguāngdù]
相對發光度 英文
relative luminosity
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 發 : 名詞（頭發） hair
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. Abstract : the total quantity of perylene quinonoids in hypocrella bambusae ( b. et br. ) sacc., shiraia bambusicola p. henn and culture substance of ascomycetes hypocreacae ( fr ) tul. sp. were determined with spectrophotometric methods. the relative extraction efficiency were studied when ethanol, acetone and chloroform were used as solvents. among them acetone was the best one

    文摘:用分光光度法測定了竹紅菌、竹黃和菌寄生菌培養物中?醌類化合物的總量；同時研究了以無水乙醇、丙酮和氯仿為溶劑提取?醌類化合物的相對效率，結果發現以丙酮為溶劑最合適。
  3. This and the x - ray spectrum, which exhibits a high concentration of iron atoms relative to oxygen and silicon, convincingly show that the ejecta are the remains of an exploded white dwarf star

    這幅圖連帶x射線光譜（顯示出了鐵相對氧與硅的高度集中）令人信服地說明，拋出的物質是爆發白矮星的殘余。
  4. Our cosine correctors couple to optical fibers and spectrometers for relative and absolute spectral intensity measurements, for emissive color applications, and for evaluation of light sources such as leds and lasers

    我們的餘弦校正器可與光纖和光譜儀連接，用於相對光譜強度和絕對光譜強度測量、發射光譜測量，以及對led光源和激光光源進行評價。
  5. The electronic temperature, intensities of all lines and continuous spectra gradually increased with the increment of laser energy, and they got to maximum at different laser energy. our results of copper and aluminum show that there are possibly different thresholds of laser energy to electronic temperature and intensities of emission spectra of laser ablated plasma. at the different environmental gas pressure, spatial emission intensity distribution is explained by the competition among " heat reservoir effect ", " confined effect " and " s hadow effect "

    認為cu等離子體羽的發光機制是由電子與粒子的碰撞傳能、電子與離子的復合形成的；隨激光能量的增加， cu等離子體特徵輻射（分立譜） 、連續背景輻射（連續譜） 、電子溫度都出現最大值；結合對al的實驗結果說明：激光燒蝕金屬產生的等離子體，其特徵輻射、連續輻射、電子溫度可能都存在一定的能量閾值；背景氣壓對激光燒蝕等離子體譜線的影響，其機理可以認為是「熱庫效應」 、 「約束效應」及「陰影效應」相互競爭的綜合結果。
  6. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  7. The results show that the indoor air is unpolluted and the main contamination is particulates with diameter of 10 m or less, total volatile organic compounds and ozone ; the pollution mostly comes from personnel, merchandise and outdoor air ; the unacceptability ratio of the indoor air quality is 22. 64 %, so the indoor air is unacceptable ; indoor persons have caught sick building syndrome ( sbs ) ; long time and low concentration pollution is an important characteristic of indoor pollution ; and the satisfied degree of indoor persons on the temperature, relative humidify, illumination and vision is very high

    結果表明，商場室內處于未污染狀況，主要污染物是可吸入顆粒物、總揮發性有機化合物和臭氧；主要污染來源於顧客、商品和室外空氣；商場內人員對室內空氣的不可接受率為22 . 64 % ，室內空氣屬于不可接受；室內人員已有病態建築綜合癥發生；長時間低濃度污染，是室內污染的重要特徵；室內人員對商場的溫度、相對濕度和室內光照度、視覺環境等滿意程度很高。
  8. As the increasing of concentration, the host and guest interconverted, and the more the charge been transferred, the more the total energy decreased. finally, we deduce that the doping of rubrene in pvk just acting as traps in electroluminescent devices, and its trapping electrons arrested many cavities in pvk. and so, more pvk who did n ' t transport energy was concerned with trop and it makes less pvk was concerned with energy transfer in photoluminescent devices than in electroluminescent devices

    基於光致發光和電致發光中pvk與rubrene發光強度的不同，我們對低摻雜時的電致發光和光致發光進行了比較，並提出：在電致發光中， rubrene的摻入在pvk鏈間相當于陷阱，其陷阱電子對pvk空穴的吸引，使一部分在光致發光中不參與能量傳遞的pvk參與了這種陷阱作用，使得在電致發光中不參與能量傳遞的pvk可能比光致發光中少。
  9. 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。
  10. The upconverted emission after 980 nm excitation revealed an enhancement of the red [ 4f9 / 2 4i15 / 2 ] emission with respect to the green [ ( 2h11 / 2, 4s3 / 2 ) 4i15 / 2 ] emission when the dopant concentration is increased

    在納米晶和體材料中均觀察到980nm激發下紅色和綠色上轉換發光，紅光與綠光的相對強度比隨著濃度的增大而增大。
  11. Abstract : based on the objectivity of space, time and their measuring, the author gives a ideal experiment of space and time measuring, educe the difference between true time and metrical time ( this difference results from the finity of light speed ), thus proves the relativity between metrical time and true time and the relativity between given reference points, gives the express formulas of relative velocity

    提要：從時空及時空度量的客觀性、絕對性出發，通過具體的空間、時間測量理想實驗，導出測量時刻、時間與客觀時刻、時間的差異（這種差異的根源在於光速傳播的有限性） ，從而說明測量時刻、時間對于客觀物理量及不同參照點的相對性，給出了客觀勻速直線運動的相對速度表達式。
  12. Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field

    文摘:討論了在雙光子驅動場作用下，三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用，兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質，這不僅依賴于兩個上能級與禁帶的相對位置，同時也依賴于原子的初始狀態，而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同，也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質
  13. Such control can be realized in case where a atom interact with photonic band gap matericals when the atom is placed in photonic crystals whose density of modes is dramatically different from that of free space vacuum. it was known that control could be achieved by varying the frequency ( which leads to the changes of the relative position of the upper levels from the forbidden gap ) or by varying the photonic density of modes ( dos ) or by varying the intial atomic state

    由於光子晶體具有不同於真空中的光子態密度，原子和光子帶隙材料便發生相互作用，這樣便可以控制原子的自發輻射。改變原子上能級與光子禁帶邊緣的相對位置、材料中的光子態密度或原子初態都可以控制原子的自發輻射。
  14. It is validated that the numerical methods can absolutely predict the flow in the microchannels. the flow field around the roughness and the pressure drop of midline along flow direction are analyzed. it ' s found that the range of the pressure drop change relate to the magnitude of relative roughness, the distance between two parallel planes, the re number and ratio of the size of roughness and the distance between two roughness

    通過對粗糙元周圍流場和充分發展段中心線壓力曲線的分析，發現有粗糙元存在的兩平行平板間微通道，其充分發展段壓降大於光滑平板充分發展段壓降；當相對粗糙度和re不變時，隨著板間距的減小，粗糙度對主流的影響不斷增大；當板間距和相對粗糙度不變時，在層流狀態下，粗糙度對流動的影響不隨re的變化而變化；當板間距和re保持不變時，相對粗糙度越大，其對流動的影響就越大。
  15. The result showed that the spin coating method was better relatively. the obvious blue shift of pl was found in spectra of the ps / pmma composite prepared with spin coating. compared to the spectra from original ps sample, the luminescence quenching was greatly decreased for ps / pmma composite due to the prevention to ps layer with coated with pmma film and modification of dielectrical penetrability of the medium in quantum threads by the pmma

    實驗結果表明，用旋塗法實現的pmma固化后再與多孔硅復合而制得的樣品的結果最好，它與原始的多孔硅樣品相比發光峰發生了藍移而且發光強度下降很小，我們認為pmma層有限的厚度和pmma對多孔硅表面的保護使復合后發光強度下降很小，而且制備的多孔硅pmma復合體系的發光強度幾乎不隨時間而下降。
  16. Carbon plasma immersion ion implantation ( piii ) into the porous silicon has been studied for the first time, and obtained intense blue light. the effect of annealing temperature on the luminescence has been investigated and results show that the luminescence intensity of sample reaches maximum after annealed at 4000c

    首次研究了碳等離子體注入對多孔硅的改性，得到了強藍光發射，詳細研究了退火溫度對發光強度的影響，發現在400時達到最大值，並探討了相關的機理。
  17. We researched the influences of systhesis temperature, heat preservation time, eu + concentration, reduction surrounding feeling and flux on luminescent properties of sral2o4 : eu2 + phosphors, optimized the experiment conditions and reduced systhesis temperature about 100 c. we found that the systhesized sample ' s luminescent brightness is better with increasing systhesis temperature, but the phase component is more complex. we found that the luminescence brightness of sample appear a increasing process at first, and then a reducing one with the raise of eu2 + concentration, it indicated that the luminescence brightness is not better if the eu2 + concentration is too high or low. we found that the systhesized sample can not bright at too long heat preservation time, and the luminescence brightness is lower at too short heat preservation time. we found that particle diameter is bigger, the wavelength of emission peak is longer

    研究發現合成溫度高，合成樣品的發光效果好，但物相組成也較復雜； eu ~ （ 2 + ）離子在一定摻雜濃度范圍內，合成樣品的發光亮度先是出現一個提高過程，然後是一個降低過程，說明eu ~ （ 2 + ）離子濃度高或低都不利於合成樣品發光；保溫時間較長，合成樣品不發光，保溫時間較短，合成樣品發光效果不好，只有合適的保溫時間才能合成發光效果好的樣品；合成樣品的粒徑大小與發射峰的位置具有一定的關系，粒徑越大，發射峰越偏向長波方向；助熔劑對樣品的合成溫度和發光性能都有影響，助熔劑的量較低時，主要表現為助熔作用，對發光影響不大，助熔劑的量較高時，使得樣品發光亮度降低和余輝時間縮短；還原方式的不同，合成樣品的發光性能也不一樣。
  18. Rather newer is the cultural discovery by the west and by the richer parts of asia of a certain “ china chic ” : the lush, epic cinematography of zhang yimou ; the hyper - hip nightlife of a reborn shanghai ; and the western infatuation with modern chinese art, whose prices now leave a cynical smile on many a painter ' s face

    文化上，西方世界以及亞洲相對發達地區也有新的發現- - 「中國韻」 ：張藝謀史詩般的電影畫面；再度繁榮的上海光怪陸離的夜生活；西方人對中國現代藝術的沉迷陶醉，不菲價格令畫家臉上充滿了高傲的微笑。
  19. The results showed that the forming constant and the fluorescence relative intensity were increased with the increase of cross - linked degree, and also, a well straight line of i vs. cross - linked degree was obtained ( where i = i - i0, i is the fluorescence relative intensity of guest in the presence of different - cyclodextrin polymer and i0 is that of guest in aqueous solution ). the electrorheological properties of suspensions of these particles in silicon oil have been investigated under dc electric field, which exhibited a significant er behavior

    結果表明，超分子配合物中主-客體配比均為1 ： 1 ，其生成常數和相對熒光強度均隨交聯度的增長呈上升趨勢，且相對熒光強度的增量與對應的交聯度存在良好的線性關系。電流變液性能測試發現， 6種超分子配合物電流變液在3kv mm直流電場作用下，其屈服應力達3 . 38 5 . 98kpa ，與對應聚合物相比，平均增加了47 . 6 。
  20. In this paper, we analyze the doping experiments of several representational semiconductors and conclude the theoretical formula from different aspects. optimum doping contents in various materials of semiconductor materials are calculated. the quantitative calculation values are in accordance with the experimental results

    本論文工作是在對電子薄膜材料摻雜的研究基礎之上，主要是對幾種有代表性的半導體發光材料的摻雜進行分析，從不同角度對最佳摻雜含量的理論進行探索，並應用理論公式對發光材料最佳摻雜含量進行理論計算，使理論計算出的最佳摻雜含量與實驗數據相符合。
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