消光值 的英文怎麼說
中文拼音 [xiāoguāngzhí]
消光值
英文
extinction value-
These ideas explain why high numerical aperture, apochromatic lenses can separate extremely small details in blue light
這就是在使用大數值孔徑復消色差物鏡時用藍光照明可獲得超級解析度的原因。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。There's something else that's worth watching the latest news flashes and weather forecasts in moving letters running around the times building.
還有值得看的呢--在時報大樓周圍有最近消息的閃光燈和活動字母的天氣預報。In the paper, we describe the whole configuration of the joint transform correlator ; introduce the correlative theories of joint fourier transform in detail ; in order to achieve better correlation result, the nonlinear processing of joint transform power spectrum ( jtps ) is put forward, the effect of jtps laplace sharpening and binary processing to the correlation image is given ; the method of the best binary threshold is determined ; we analyse the correlation image, present the way that removes liquid crystal diffraction spot, direct current spot and image noise, and binarize the correlation image finally
本論文主要對提出的聯合變換相關的整體結構進行了描述;詳細介紹了聯合傅里葉變換的相關理論;為了得到更好的相關結果,本文提出對聯合功率譜進行非線性處理的方法,給出了聯合變換功率譜的拉普拉斯銳化和譜的二值化處理對相關峰圖像的影響及二值化最佳閾值的確定方法;對相關峰圖像信息進行了分析;提出了消除液晶衍射光斑、直流光斑和圖像噪聲的方法;最後對相關峰圖像進行了二值化處理。The algorithm can not only eliminate the influence of the cumulative errors of the photoelectric code recorder, but also it can satisfy the requirement of the real - time control. a direct inverse model controller of fuzzy neural network with changeable structure based on takagi - sugeno inference is presented and it is used to the motion control of mobile robot. in order to avoid the obstacles successfully, detection results from ccd and ultrasonic sensors are fused by a fuzzy neural network, which acts as an avoidance controller
包括移動機器人的融合自定位問題:移動機器人利用光電編碼器進行自定位,同時用擴展卡爾曼濾波器融合多個超聲波傳感器的測量值,採用回朔演算法將融合值用於復位光電編碼器,消除了光電編碼器累積誤差的影響,並能滿足實時控制的要求:並提出一種基於takagi - sugeno模型的變結構模糊神經網路直接逆模型控制器,並應用於移動機器人的運動控制;利用模糊神經網路避障控制器融合ccd攝象機與超聲波傳感器探測到的環境信息,以實現機器人的安全避障。Thirdly, in the environment of labview, several kinds of vis used for sensor signal test are designed, including wave generation, time domain measurement, filter disposal, frequency analysis, etc. after that, wavelet analysis in the application of one - dimensional signal de - noise is studied, threshold and translation invariance wavelet de - noise are realized, and wavelet de - noise vi for zero drift signal of the fiber optic gyro in fcs is designed using labview
接著,在labview環境下開發了多種用於傳感器信號測試的虛擬儀器,具有波形發生、時域測量、濾波處理、頻譜分析等多種功能。隨后,研究了小波分析在一維信號消噪中的應用,實現了labview環境下的閾值法和平移不變量法小波消噪,並利用labview設計了飛控系統中光纖陀螺零漂信號的小波消噪儀。Because of their fine extinction ratio and high anti - light - damage threshold value, laser - polarizing prisms are popular among workers in science and technology field
激光偏光棱鏡,以其優良的消光比性能和高抗光損傷閾值性能,倍受科技工作者歡迎。We validated this system on the black - body oven, analyzed the errors which brought about by the optical system, ccd, surroundings and workers, expounded the improvement methods ; 5. we had done many real measurements with this system. after analyzing the experiment results, we improved the original system and proposed a new system
在自己研製的黑體爐上對系統進行了標定實驗研究,對標定誤差進行了分析,對消除光學系統、 ccd 、環境以及主觀因素等對誤差的影響提出了改進和處理方法,大量實驗得出了較為穩定的標定測量值,為系統進行實際工況環境下的測量奠定了基礎; 5When this information was given, and they had all taken their seats, mr. collins was at leisure to look around him and admire, and he was so much struck with the size and furniture of the apartment, that he declared he might almost have supposed himself in the small summer breakfast parlour at rosings ; a comparison that did not at first convey much gratification ; but when mrs. philips understood from him what rosings was, and who was its proprietor, when she had listened to the description of only one of lady catherine s drawing - rooms, and found that the chimney - piece alone had cost eight hundred pounds, she felt all the force of the compliment, and would hardly have resented a comparison with the housekeeper s room
大家聽到這個消息之後,便都坐了下來。柯林斯先生悠閑自在地朝四下望望,瞻仰瞻仰一切屋子的尺寸和裏面的傢具使他十分驚羨,他說他好象進了咖苔琳夫人在羅新斯的那間消夏的小飯廳。這個比喻開頭並不怎麼叫主人家滿意,可是接下來腓力普太太弄明白了羅新斯是一個什麼地方,它的主人是誰,又聽他說起咖苔琳夫人的一個會客間的情形,光是一隻壁爐架就要值八百英鎊,她這才體會到他那個譬喻實在太恭維她了,即使把她家裡比作羅新斯管家奶奶的房間,她也不反對了。Nan ya wrap bringsneatness tocommodity, enhances its value and triggers consumer ' s purchasing desire
南亞保鮮膜光澤度及透明性均佳。賦予商品清潔感,提高商品價值,增加消費者之購買欲。However, the online games community value and economic value increasingly be reflected today, china ' s online game for the young people in particular to the negative impact of the condemnation did not persist ; moreover, due to china ' s online game market has great potential for foreign game developers have to turn their attention to china, and has taken the offensive expectations on access to china ' s market place
然而,在網路游戲的社會價值和經濟價值日益得到體現的今天,對我國網路游戲帶來的尤其對青少年的負面影響的聲討並未消停;同時由於我國網路游戲市場的潛力巨大,國外游戲開發商紛紛將目光投向我國,並已採取攻勢期望在我國市場上獲得一席之地。Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
在此基礎上,給出了一整套bbo - opo激光參數設計方案:計算了不同泵浦強度下的參量放大倍數;詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線,以及非共線類相位匹配調諧曲線;分析了走離角對非線性系數和群速匹配的影響;計算了參量過程的允許角;計算了bbo - opo的理論閾值條件;分析了飽和與泵浦光束的消耗過程;給出了轉換效率與超過泵浦閾值的倍數的關系;討論了轉換效率與輸出鏡反射率的關系;討論了線寬控制的各種方法;研究了利用非穩腔改善光束質量的方法;考慮了bbo晶體的設計。A statistical method is used to obtain the background model, which is updated real time in order to adapt to illumination changes and scene changes. after threshold operation, morphologic operation and connected region area measurement are introduced to solve background disturb problem. at last, shadows are detected using hsv color space information and gets exact moving regions
該方法首先利用統計的方法得到背景模型,並實時地對背景模型進行更新,以適應外界光線變化和場景本身的變化,閾值操作后,用形態學和連通域檢測的方法進行后處理,消除噪聲和背景擾動帶來的影響,最後,在hsv顏色空間下檢測出陰影,得到準確的運動對象區域。But he thought of her as he had seen her last, and all his doubts vanished ; not because she had answered the questions that haunted him, but because her image lifted him instantly into another bright realm of spiritual activity, in which there could be neither right nor wrong, into a region of beauty and love which was worth living for
可是他總是回憶起最後一次看見她的模樣,他的所有懷疑都消滅了,這不是因為她解答了存留於他心中的問題,而是一想到她,就立刻把他領入另一個光明璀璨的精神境界,那裡不可能有是或非,那是個值得為其愛和美而活著的境界。Its buildings run north to south, and a walk street in the middle and retail markets at both sides ; business and catering are mainly dealt on the 1st and 2nd floors, and small - sized guest rooms, business offices and apartments on the upper floors ; the walk street, 17 m wide and 13m in part, with 4 entries and exits, set in the four directions of walk street, and it neighbors the port in the north, with game playing halls and other amusement facilities for tourists break and amusement when they wait in the port ; business offices and small hotels in the west adopt the court - style, which small scattered pattern is not only convenient to isolate operation, but also to lighting and ventilation, vertical greening by bottom roof platform, office and accommodation environment and space level and commercial value improvement
工程建築南北走向,中間為步行街,兩側為門市;一層、二層以商業、餐飲為主,上部各層布置小規模旅館客房、商務辦公和商務公寓;步行街寬17米,局部13米,出入口有四個,分別設在步行街南北東西處,北側靠近港口處布置電腦游戲廳等娛樂設施,主要供港口等候遊客短時間休息、消遣使用;西側的商務辦公與小旅館採用了院落組合式,一方面,小型化的分散布局便於獨立經營,另一方面,也有利於房間的採光通風,並利用底層屋頂平臺豎向綠化,改善辦公和住宿環境,提高空間層次和商業價值。The results of property test of dkdp crystal grown on a point seed show that laser damage threshold is about 5gw / cm2, ? half - wave voltage is about 4kv, extinction ratio is about 1600 : l. the obvious difference of dkdp crystals is not found between traditional technique and point seed growth technique
性能測試結果表明,點狀籽晶全方位生長的dkdp晶體的激光損傷閾值約為5gw cm ~ 2 、半波電壓約為4kv 、動態消光比約為1600 : 1 ,發現與傳統方法生長晶體的性能沒有明顯的差別。Simulation study on the extinction coefficient of winter wheat in huang - huai - hai plain of china
黃淮海冬小麥冠層消光系數農業氣象數值模擬This paper deals with theoretical study on extinction characters of non - spherical particles and their smokescreen, which is one of the fundamental researches of smokescreen technology. the mathematical radiation extinction model of particles is discussed, and numerical simulation of extinction characters of particle and smokescreen is developed
本文就非球形微粒及其形成煙幕的消光機理開展了研究,針對煙幕對輻射衰減的理論模型,進行了非球形微粒及其形成煙幕的消光特性數值模擬。The infrared results showed that the ir characteristic value l080cm - lof cubic crystal sio, and the absorption peak 460cm - l of mgf, caused by the interaction between f - - mg ' + - p elastic vibration and photon radiation, appeared in the ir spectra. ellipsometric analysis showed that the typical absorption peaks 58lnm, 589nm and 606nm, resulting from the surface plasma resonance of cu panicles and reflecting the absorption on composite film system, appeared in the extinction coefficient k curves of cu ( voll5 % ) mgf, cu ( vol20 % ) mgf, and cu ( vol30 % ) mgf, cermet films, respectively. with the component of cu increasing, the peak site presented red shift, which was in accordance to the results of ultraviolet - visible spectra
橢偏測試分析表明: cu ( vol15 ) mgf _ 2 、 cu ( vol20 ) mgf _ 2和cu ( vol30 ) mgf _ 2樣品的消光系數k曲線中出現了反映復合金屬陶瓷體系吸收的由cu金屬顆粒表面等離子體共振引起的吸收峰,峰位分別為581nm 、 589nm和606nm ,呈現紅移,這些與紫外-可見光譜測試結果相一致;此外, cu - mgf _ 2復合納米金屬陶瓷薄膜光學常數的實驗值與考慮尺寸效應修正過的mg理論值總體上符合得很好。( 2 ) with the condition of table 4. 2, the average reflectance decreases and the low reflectance vale moves towards shortwave, the influence on the extinction coefficient ( k ) of the films is very little, refractive index has trend of decrease and the thickness of the films decrease when increasing the total gas pressure, and the refractive index fix on a constant value when the total pressure exceeds a certain value. the phase of tio2 change from rutile to anatase and the size of surface grain change from big to small
( 2 )隨著總氣壓的增加薄膜的反射低谷向短波方向移動;總氣壓對消光系數k影響不大;隨著總氣壓的增加薄膜的折射率出現了下降的趨勢,但當總氣壓達到一定的量值時折射率的變化趨于穩定;薄膜的厚度隨總氣壓的增加而減少;隨著總氣壓的增加tio2的晶體結構由金紅石相向銳鈦礦相轉變,薄膜的表面的顆粒度大小由粗大變得微小細密。分享友人