色度常數 的英文怎麼說
中文拼音 [shǎidùchángshǔ]
色度常數
英文
color constant-
When the illuminance rose, the photic decomposition rates of the natural anthocyan pigments rose as well, but there was no linear relation between photic decomposition rate and illuminance
隨著照度的增大,花青素類色素的光降解速率也增大,但光降解速率常數的改變和照度之間不存在線性對應關系。The result showed that non - enzymatic browning of greengage juice could be inhibited and natural primrose yellow could be kept in the plasming of greengage by adding 0. 2 % ( mass fraction ) sodium erythorbate ; non - enzymatic browning of greengage juice was restrained more remarkably by vacuum concentration than by normal pressure concentration ; the non - enzymatic browning of greengage juice increased and the color darkened with the increase of concentration and processing temperature ; non - enzymatic browning of greengage juice in the storage could be inhibited under the condition of low temperature, and frozen storage was the best store method of greengage concentrated juice
摘要結果表明:在青梅果打漿時加入質量分數為0 . 2 %的異抗壞血酸鈉,可防止果汁氧化褐變而保持天然淡黃色澤;減壓濃縮較常壓濃縮明顯抑制了非酶褐變的發生;隨著果汁含量和加工溫度的提高,非酶褐變加快,色澤加深;低溫有利於青梅濃縮汁的貯藏,冷凍貯藏是最佳的貯藏條件。The results indicate that ( a ) before heat treatment, with the increasing of substrate temperatures, content of lower valency ( tij + ) decreases, the stoichiometric proportion of o / ti in all samples is about 2 ; the films have amorphous incompact columnar fiber structure, and with the increasing of substrate temperature, the size of columnar fiber increases ; the films have good hyalescence in visible range and great absorbability at the wavelength of 350nm ; optical constants of the films are calculated from the transmittance spectrums in visible range by mathematical analysis of the orders of interference, the results show that the refractive ind
研究結果表明, ( a )熱處理前,隨著基片溫度的增加,薄膜中的低價氧化鈦含量逐漸減少,化學計量比趨于o ti = 2 ;薄膜具有非晶態不緻密的柱狀纖維結構,柱狀纖維的尺寸隨基片溫度的升高而增加;薄膜在可見光范圍內透明,在波長為35onzn時嚴重吸收,利用干涉級次法分析了薄膜的光學常數,結果表明,薄膜的折射率隨基片溫度的升高而增加,根據計算結果得到了tioz薄膜在不同基片溫度下的折射率色散曲線。A good, free speed network monitoring software, it can monitor your current network speeds and upload and download includes the real - time speed and a beautiful chart, or figures out ( to support both also choose to show or show only a ), support adsorption of the screen ' s edges, obviously thoroughly support show monitoring window, penetrating mouse support functions ( embedded desktop ) and the functional and cross - fade out, would not affect other software applications and support custom color graphics and font support day - to - day, week, month statistics and limit traffic flow
一個不錯且免費的網路速度監測軟體,它可以監測你當前網路速度,包含上傳及下載的實時速度,並以漂亮的圖表或數字顯示出來(支持選擇兩種方式同時顯示或只顯示一種) ,支持吸附到屏幕邊緣,支持透明顯示監測窗口,支持鼠標穿透功能(嵌入桌面)及淡入淡出功能,不會影響日常其它軟體應用,支持自定義圖表和字體顏色,支持按日,周,月統計流量並限制流量。The experiments showed that, as compared to the conventional dyeing, the diffusion coefficients increased more with raising the bath voltage and temperature, indicating the dye uptake rate could be improved with electro - chemical dyeing
實驗表明:當槽電壓和溫度增加時,擴散系數均比常規染色增加,說明電化學染色可以增加染料的上染速率。Applicability test of chromatographic systems usually include 4 indicators including theoretical tower number, separating degree, repeatability and trailing factor
色譜系統的適用性試驗通常包括理論板數、分離度、重復性和拖尾因子等四個指標。Abstract : the colored sandwich steel plate has been successfully used in the noise control at the cooler center in the paint shop of dcac wuhan factory, expressed with laudness index, noise level is reduced 79. 65 % after control. the effect is very excellent
文摘:在噪聲治理中,採用彩色夾心板作隔聲構件,在武漢總廠塗裝分廠製冷站應用成功,用響度指數這個絕對數表示,治理前後噪聲總響度降低79 . 65 % ,隔聲效果非常好,達到了預期的目的。It plays a very important role in many application, according to the point of mathematics point, its mostly application originate from equations of mathematical physics, difference equations, markov process, and so on, its purpose is to solve the problems of solid, fluid, electromagnetic, microscopic particles, system control, and etc. in practical science research and engineer applications, such as, architecture project, research of aeronautics and astronautics, bioscience, computing physics and oil reconnoiter, many large scale generalized eigenvalue problems need to be solved
它在很多應用中扮演非常重要的角色,從數學角度來看,矩陣特徵值問題的應用大多來自數學物理方程、差分方程、 markov過程等。目的是為了計算固體、流體、電磁、微觀粒子、系統控制等重大問題。在實際的科學研究與工程應用中,比如在建築工程、航空航天研究、生物科學、計算物理以及石油勘探中,都要涉及到大規模矩陣廣義特徵值問題的計算。In this paper, chroma dc coefficients are selected as the carrier data because chroma dc coefficients are robust. also, alterable steps are used to select one part of the coefficients, so the watermark is imperceptible ; before watermark embedding, the watermark is divided into many parts, every part is individually embedded into one gop of the video, even if a gop is destroyed, the watermark can be extracted correctly, this methods promotes the robustness of the watermark ; in addition, in order to promote the security of the watermark, the user ' s id and password are used to generate chaos sequence by the chaos system which is created in this paper, later, watermark is mixed by the chaos sequence. also, the embedding position of the watermark bit is modified by one chaos sequence, so, unauthorized person can not extract or remove the watermark, since the embedding position is unknown
本文認為,色度dc系數是魯棒性非常好的參數,因而選擇色度dc系數作為水印信息載體,同時,採用可變的步長選擇部分系數,保證了水印的隱形性;在嵌入水印時,本文採用水印信息「網格劃分」 、各子塊獨立嵌入視頻的方案,由於水印信息子塊是相對獨立的嵌入視頻中的每一相對獨立的圖組當中,即使某一圖組收到一定破壞,也能夠恢復水印信息,使水印的健壯性得到提高;此外,為了提高水印信息的安全性,在嵌入水印信息時,根據用戶輸入的id號和密碼,利用本文構造的混沌系統產生的混沌序列對水印信息進行變換,同時,對每一水印信息比特的嵌入位置也採用了偽隨機序列進行調整,這樣,未授權用戶不能提取水印信息,也難以擦除其中的水印信息,因為嵌入的位置是未知的。Red tide occurs randomly, with short duration and large incidence. airborne hyperspectral remote sensing technique can play an important role in red tide ' s monitoring. and the precondition is to acquire in situ spectral data of red tide, to grasp red tide ' s spectral characteristics by data processing and analysis and to set up spectral library of different dominant species of red tide
赤潮是海水中的浮游生物在一定條件下過度繁殖或聚集致使海水變色的一種生態異常現象,因其具有隨機性、突發性、持續時間短、影響范圍大等特點,客觀上要求利用航空高光譜遙感技術對其進行監測;但首要的前提與基礎性工作是大量獲取赤潮水體的現場光譜數據,通過處理與分析,掌握其光譜特性,不斷充實赤潮優勢種類的光譜數據庫。Now, there are four evaluation methods in this field, every method has its advantages and shortages and most of them are established based on highway. high weight communication, great loads channelized traffic and high speed is the expressway ' s feature, there is great difference in the development law between highway and expressway. we will get some unfitness result by using those evaluation methods to evaluate expressway
目前國內外常用的四類路面使用性能評價方法中回歸法評價結果與實測數據相關性不太理想,系統分析法客觀性不強,灰色理論法存在一定的主觀經驗性,其它一些方法還處于研究階段;而且這些方法都是基於普通公路建立,高速公路具有交通量大、汽車軸載重、交通渠化和行車速度高等特點,路面使用性能的特點和發展變化規律與普通公路存在較大差異。The dielectric constant of srtio3 ( sto ) thin films is voltage - dependent near the curie temperature tc ( about 40k ). and no dispersion in is observed in sto at frequencies up to 10 ghz. yba2cu3o7 - x ( ybco ) high temperature superconducting thin film has very low microwave surface resistance
Srtio3 ( sto )薄膜在其居里溫度附近( ~ 40k )具有介電常數隨電場強度變化而變化的性質,同時sto在10ghz以下介電常數沒有頻率色散性。To pick up the convergence speed of traditional genetic algorithm, a modified genetic algorithm is presented, which is based on subsection integer coding, combining stable - state selection strategy with inequality individual and scaling, adaptive recombination according to gene sufficiency, self - adaptive variable step and multi - gene mutation
將兩幅圖象重疊區域的歸一化差圖象作為搜索空間,定義一個與圖象高相等維數的向量作為染色體,染色體的基因表示每一行圖象中的最優拼接點,採用常用的最小值搜索適應度函數作為視差圖像拼縫搜索的適應度函數。By means of chemical - displacement and orthogonal test method, the various technological parameters of the colorant for steel at normal temperature are determined. and simultaneously their effect regulation for steel of various state and constituent on coloring film quality are also discussed in detail. a new bronze - colored treating solution and technology for steel at normal temperature has been developed with stable and high quality performance
運用化學置換法和正交試驗法測定常溫著色液的溫度、酸度、成分、含量等參數及其對不同狀態及成分的鋼鐵色膜質量的影響規律,研製出了一種性能優良的鋼鐵常溫古銅色處理液及處理新工藝。Abstract : by means of chemical - displacement and orthogonal test method, the various technological parameters of the colorant for steel at normal temperature are determined. and simultaneously their effect regulation for steel of various state and constituent on coloring film quality are also discussed in detail. a new bronze - colored treating solution and technology for steel at normal temperature has been developed with stable and high quality performance
文摘:運用化學置換法和正交試驗法測定常溫著色液的溫度、酸度、成分、含量等參數及其對不同狀態及成分的鋼鐵色膜質量的影響規律,研製出了一種性能優良的鋼鐵常溫古銅色處理液及處理新工藝。In this paper, integrating with gis, gps technology and groud survey data, multi - source remote sensing data, including multispectral tm / etm + data, high spatial resolution spot 5 pan data and sar data were used to monitor the forest change in zhangpu county
本文利用常規的多光譜數據tm etm +數據、高空間解析度spot5全色波段數據和合成孔徑雷達數據,結合gis 、 gps技術和森林資源地面調查技術,對漳浦縣森林資源展開遙感動態變化監測。Algorithms of video segmentation that are good adaptive character and real time are crucial to the final mpeg 4 coding products there exist the contributions in this dissertation as follows obtaining the edge of video objects is crucial to the video segmentation, author researches the features of human being visual, especially giving a description of mach band that is usually used in the image processing, and builds a model of mathematics, researching the mach band of color image
( 1 )視頻分割的關鍵是獲得視頻對象的邊界,邊緣檢測很重要,本論文以人類的視覺系統的特性為出發點,對圖像處理中經常應用的馬赫帶現象進行了詳盡的分析並進行了數學建模,研究分析了彩色圖像的馬赫帶現象。在對馬赫帶圖像分析的基礎上,得出了人類視覺系統對圖像邊緣能識別的最小灰度差和彩色差曲線。We derive an analytic expression of the group velocity dispersion ( gvd ) induced chirp and the self - phase modulation ( spm ) induced chirp in the normal dispersionregion of non - kerr - like optical fibers with saturable nonlinarity. the evolution of chirp is simulated by numerical methods. the studied results show that the more powerful saturable effects, the smaller is chirp and the gently is chirp. the net chirp is zero in the central region of the pulse
從理論上推導出具有飽和非線性的非克爾光纖正常色散區內,群速度色散效應導致的啁啾和自相位調制效應導致的啁啾解析表達式.利用數值解法模擬了非克爾光纖正常色散區啁啾演變過程.研究結果表明:當非克爾光纖的飽和非線性增強時,凈啁啾不斷減小,而且,越來越平緩,脈沖中心附近區域凈啁啾接近零In this paper we studied and compared general face detecting algorithms. in allusion to the characteristics that image of video sequences has low resolution ratio and large quantity of color information ; we propose a face detecting method based on skin color and local human face structural feature
本文對在靜態圖像和視頻圖像序列中常用的人臉檢測演算法進行了研究和比較,針對數字視頻中圖像解析度較低,包含大量色彩信息的特點我們提出了一種基於膚色和人臉局部特徵的檢測方法。In this thesis, the spectral characteristics of a fiber grating are analyzed by using the coupled mode theory. the influences of various structural features such as the length, chirp, coupling coefficient and aperdization to the spectral characteristics were studied numerically with a transfer matrix method. the reflective spectral responses for fiber bragg gratings with different aperdization are analyzed, and the optimal aperdization is ob tained
首先論文利用耦合模理論對光纖光柵的光學特性進行了詳細的分析,在對比了龍格庫塔法和傳輸矩陣法這二種常用的分析方法的基礎上,選擇傳輸矩陣法著重研究了光纖光柵長度、啁啾系數、耦合系數以及各種切趾函數與其反射譜譜寬、反射率極值、時延、色散等特性的相互關系及影響。分享友人