譜帶強度 的英文怎麼說
中文拼音 [pǔdàiqiángdù]
譜帶強度
英文
band intensity-
Firstly, this paper designs a polar coordinate barotropic vorticity equation semi - spectral model and a quasi - geostrophic grid model in order to research the propagation of vortex rossby waves and tropical cyclone intensity change entirely
本文首先設計了一個極坐標系正壓渦度方程的半譜模式、一個準地轉格點模式對渦旋rossby波傳播和熱帶氣旋強度變化進行了較為系統的研究。Each order rainbow can be separated and reconstructed from the interference intensity distribution, using low or band pass filtering for the interference spectrum of the intensity and ifft
提出了對干涉強度頻譜進行低通和帶通濾波、 ifft的方法,從干涉強度分佈中分離重建各階彩虹。Under visible light excitation titanic acid and titanate sodium nanotubes showed a relatively intense emission, which red shifts with the increase of excitation wavelength. under humid conditions this photoluminescence of titanic acid nanotubes was not stable. the intensity decreased, and the emission peak was at 480nm, which cannot shift with the change of excitation wavelength
鈦酸和鈦酸鈉納米管在使用可見光激發時,都能產生光致發光現象,當使用不同波長的可見光激發鈦酸和鈦酸鈉納米管時,能夠得到不同強度的發光譜帶,且發光峰的位置隨著激發光的變化發生較大范圍的移動。Then some cavity quantum electro - dynamic ( cqed ) effects are studied by experiment. the photoluminescence ( pl ) intensity enhancement at resonance wavelength and suppression at off - resonance wavelength, emission spectrum narrowing as well as emission intensity redistribution in space are observed in the microcavity device fabricated with distributed bragg reflector ( dbr ) and silver mirror as well as that done with two silver mirrors
分別在帶有dbr結構的平面微腔及全金屬鏡構成的平面微腔中觀察到了諧振模式處的輻射增強及非諧振模式處的輻射抑制,發射譜線窄化以及輻射強度空間分佈重組等腔量子電動力學現象。( 4 ) the results of ftir showed that the ftir spectrum of decaying remainders at all periods was near to that of original samples, and was far to that of soil humus
( 4 )紅外光譜分析結果,腐解物原樣的紅外光譜各主要吸收帶均較窄且強度較大,而腐殖酸的紅外光譜各主要吸收帶均較寬且峰尖平緩。In the attenuated - total - reflection ( atr ) multi - layer structure, light reflectivity can be highly dependent on layer parameters such as the layer thickness and refractive index. a tiny change in these parameters can lead to a large change in the light reflectivity
衰減全反射( atr )結構是光學上一種較為特殊的反射型結構,在一定的條件下,反射光的空間強度和頻譜成分都會受到結構參數的影響和控制,同時反射光也攜帶上了結構本身的信息。In this text we make a diagnosis of linear and nonlinear response of quasi - quadrennial ( qq ) and quasi - biennial ( qb ) component of nino3. 4 index by using reanalyzed ncep / ncar data of sst, wind stress ( pseudo stress ) field, ssp, then have a time and spatial analysis of wind stress field by using mssa, and finally find the importance and contrast the effect of different wind stress field forcing the sea so as to find the cause ofenso irregularity
本文首先分析海表溫度( sst ) 、風應力場、海表面氣壓( slp )等ncep ncar再分析的月距平場對于nino3 . 4指數的準4a ( qq )和準2a ( qb )振蕩成分的線性和非線性響應,接著用mssa (多通道奇異譜分析)對風應力場進行時空特徵分析,最後用一個熱帶太平洋動力海洋模式研究具有不同振蕩性質的風應力場對海洋強迫作用的重要性及差異,尋找enso不規則性的原因。There are distinct changes about shifts or intensity in bulk plasmon, surface plasmon, and interband electron transitions losses as a result of oxidation of specimens, and adsorption and oxidation processes can be studied through these changes. at room temperature, the formation of oxide layers on uranium and uranium - niobium alloys were found to occur rapidly upon exposure to oxygen, and the resultant oxide in each case was near - stoichiometric uo2. due to formation of niobium oxide in uranium - niobium alloys, the diffusion of o ~ ( - ) ( o ~ ( 2 - ) ) and u ~ ( 4 + ) in the interface region was prevented, and the corrosion resistance of uranium - niobium alloys to oxygen is greatly enhanced by alloying with niobium
研究結果表明:清潔表面鈮和鈾的體等離子體振蕩所造成的電子能量損失的實驗值與理論計算值較為符合;隨著氧化程度的加劇,表面等離子體( sp ) 、體等離子體( bp )以及價帶電子躍遷所造成電子能量損失的譜峰發生了明顯的連續偏移或強度的變化,這些變化可以用來分析鈾及鈾鈮合金的初始氧化過程;室溫下,鈾及鈾鈮合金很容易與氧作用,最終結果,鈾僅氧化為二氧化鈾,另外,在鈾鈮合金氧化過程中,因為有鈮的氧化物存在,不利於氧和鈾在界面擴散,增強了鈾鈮合金抗氧化性能; eels能獲得樣品表面的信息比aes更為表面,更為靈敏,但由於eels的譜線過于集中,主要在幾十ev以內,也有不容易區別和解譜的不足。5nm and 10nm respec live1y, but the ye1 l ( ) w band i s also found on the ijl spectra of these two samp1es. the yel low peak i s very strong in 1 # samp1e, its intensi ty is higher than that of the ilear - - band peak. while the ye11ow band is quite weak compairing with the 1 # samp1e, and its radio of ye1low - - band / near - - band is on1y 0
1 # 、 2 #樣品的pl譜峰均很窄,其fwhm (半峰寬)僅為7 . 5nm和10nm ,但兩個樣品的pl譜均出現了黃峰, 1 #的黃峰較高,其強度超過了帶邊峰,而2 #的黃峰得到很大改善,其黃帶帶邊峰強度比僅為0 . 17 。Thus, the frequency domain adaptive filter is well suited to a multi - narrowband interference scenario, the paper studied frequency domain adaptive algorithms, carried out analysis and computer simulations. simulation results : for gold codes ds - ss signal of length 63, 4 interferences of signal to interference ratio ( sir ) 40 ub or 4 narrowband interferences of signal to interference ratio ( sir ) 40 db and frequency - spectrum bandwidth 12 percent of the whole bandwidth, the sir improvement is better than 20db
模擬結果指出,在輸入信號為干擾是4個等強度的多音干擾或4個頻譜帶寬占信號總帶寬12的強窄帶干擾(干信比為40db )的擴頻信號(碼長為63的gold碼序列)情況下,演算法的干擾抑制比均優於20db 。Simultaneously, the einstein shift of spectra could be seen and the intensity of fluorescence at 350nm was reinforced with the increment of manganese oxide nanoclusters in the pores. 4. the preparation of manganese oxide mesophase via hydrothermal treatment was studied here simply
此外對不同孔徑mcm - 41進行納米團簇裝載試驗表明:隨著孔道中氧化錳裝載量的增加,吸收光譜吸收邊帶發生紅移, 350nm激發熒光強度增強。Melp vocoders utilize mixed pulse and noise as the excitation to elimate the buzzes in traditional lpc vocoders, and add a jitter voicing state to overcome the tonal noise. parameters " interpolation, adaptive spectrum enhancement and pulse dispersion also are adopted to improve the continuity. the synthetic speech of melp vocoders sound much more natural and perceivable than the traditional vocoders "
Melp聲碼器採用混合脈沖和噪聲激勵解決了經典lpc的嗡嗡聲的問題;引入了抖動濁音狀態以克服音調噪聲;利用參數插值、脈沖散布和自適應譜增強等措施提高合成語音的自然度和可懂度;此外還採用了多帶激勵,使其具有了比較強的抗背景噪聲的性能。4 different types ’ features were generated, namely ar model parameters, power spectral frequency band intensity, energy for wavelet packet decomposition, wavelet packet entropy. every type of features were extracted respectively using pca and ica method and classified using linear neural network, knn and bp network
建立了ar模型參數、功率譜估計頻帶強度、小波包分解能量比率、小波包熵四種特徵,分別使用pca與ica進行特徵提取,採用線性神經網路、 k -緊鄰法、 bp神經網路四種分類器進行分類。The process of target identification is formulated, which involved feature extraction, dimension reduction and classification. for solving the overlap of each subspace of a wavelet library in frequency, there are two approaches that are best basis ( bb ) and local discriminant bases ( ldb ). their measure and searching algorithm were researched
從數學的角度描述了目標識別過程,依據cwt和多分辨分析表示信號的特點,提出了以信號尺度?小波能量譜、時間?小波能量譜、多分辨分解系數和各子帶能量強度為特徵的方法。The photoluminescence of the thin films without post heating is weak. only one luminescence band is found nearby 473nm. two luminescence bands are found after post heating, nearby 493nm and 368nm respectively. the intensity of the luminescence bands increase little by little when the temperature and the time of post heating continues to increase
而退火處理過后,薄膜出現兩種光致發光現象,即藍色發光和紫外發光,其峰值分別在493nm和368nm附近,而且隨著退火溫度的升高和退火時間的延長,發光譜帶的強度逐漸增大,峰形的位置也有不明顯的藍移。Raman spectroscopic studies show that the intensities of the d with respect to g band and the widths ( fwhms ) of raman bands can represent the change of the cnx nanotube ' s crystallinity with the nitrogen incorporation
對cn _ x納米管樣品的拉曼光譜研究結果顯示,拉曼光譜中d帶和g帶的相對強度、拉曼峰半高寬等信息可以反映由於氮原子摻雜所引起的納米管結晶有序程度的變化。Vanadyl phthalocyanine ( vopc ) films prepared by vacuum deposition were annealed under magnetic field. uv - visible absorption results showed that the films annealed under magnetic field showed a q - band red - shift. x - ray diffraction study ( xpj ) ) indicated enhancement in diffraction intensity and shift of peak position
分析表明酞菁氧釩分子uv - vis吸收譜q帶峰值發生較大的紅移; xrd測試中衍射峰強度明顯增強,峰位變化,但峰寬變化不大;原子力顯微鏡( afm )分析發現晶粒大小無明顯變化。By comparable investigation, two luminescence mechanisms can explain the different variety of pl intensity of origin and annealed samples and are dominant mechanisms separately in unanneal and anneal course
經過退火處理后,在相同波長的光激發下發光強度逐漸增強,峰型逐漸變好,發光譜帶的半峰寬也變窄。The detailed research contents are as following : ( 1 ) based on molecule spectrum theory and experimental data, presented are fine parameters of ch4 combined frequency band v2 + v3 and wide frequency band 2v3, including absorption spectrum central wavelength, line space, intensity distribution, line type and line width. these fine parameters have played solid foundation for measurement wavelength selection, and effectively eliminated cross sensitivity
主要研究內容如下: ( 1 )應用分子光譜理論和實驗數據給出了甲烷氣體在聯合帶v2 + v3和泛頻帶2v3的精細參數,包括吸收線的中心波長、吸收線間隔、吸收線強度分佈、吸收線線型和線寬,為系統設計選擇合適波長提供依據,消除交叉敏感。After compared these methods, power spectral frequency band intensity, pca and linear network were choose to carry out the recognition system. finally, this paper provided software of gui as well as a group of simulink blocks to operate data and acquire results
在綜合比較各種方法后,最終選擇功率譜估計頻帶強度為分類特徵, pca用於特徵提取,線性神經網路作為分類器用於系統的實現。分享友人