色度系數 的英文怎麼說
中文拼音 [shǎidùxìshǔ]
色度系數
英文
chromaticity coefficient- 色 : 色名詞[口語] (顏色) colour
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 數 : 數副詞(屢次) frequently; repeatedly
- 色度 : tone; chroma; chrominance; tinct; chromaticness; chromaticity; colourity色度測量 colour measureme...
- 系數 : [數學] coefficient; ratio; modulus; quotient; factor
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The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological
分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象,依據astm標準及國際通用文物保護研究方法與評估準則相結合,通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定,及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響,對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。By analysising the thin film system, polarization and absorption of material, the relation ship between these parameters and the chroma of the light engine system is built. then a programm is writen in c + + language to realize the method
通過分析該系統從光源到分色合色和投影鏡頭的膜系結構,偏振特性,材料吸收等對系統能量分佈的影響,建立了各個參數與系統色度之間的關系。This arithmetic divides the wavelet coefficients of carrier image into 27 - classes by the background luminance, the texture and the edge mask character of visual system ; then after encrypting watermark image with magic cube transformation, the ycbcr model is employed, it embeds the watermark sequences in the carrier image with different intensity according to the coefficients " classes of carrier image in y channel
首先,將載體rgb圖像轉換到ycbcr顏色空間,然後提取亮度通道y ,將其進行小波變換,然後利用人眼視覺模型對載體圖象分解后的小波系數進行分類。其次,對有意義的水印圖像分別進行3次不同的魔方置亂,得到3個隨機水印序列。In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy
本文研究了高階精度加權基本無振蕩( weno )格式及其在雙曲守恆律方程中的應用,在此基礎上作了兩個方面的工作:一是針對高頻聲波問題構造出一種基於保色散關系( drp )的weno有限差分格式,並對計算氣動聲學( caa )問題的代表性算例進行了大量數值實驗,比較了該格式捕捉波數的能力;另外,針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題,研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法,並且給出有代表性的密度滑移面問題的算例,得到一致高階精度的數值模擬結果。So, we propose another novel algorithm using the cubic spline interpolation along the relevant direction and computing weights by trigonometric function of the gradients. the algorithm also adopts the correlation between color channels. and it proved highly effective based on some tests
鑒於此,本文接著提出了一種基於三次樣條函數在相關方向進行插值以及利用梯度的三角函數關系來計算相關性加權系數的混合型插值方案,並結合了考慮不同顏色通道間的相關耦合關系。Utilising dissolved gases analysis, a new insulation fault diagnosis method for power transformers is proposed. this method is based on the group grey relational grade analysis method. first, according to the fault type and grey reference sequence structure, some typical fault samples are divided into several sets of grey reference sequences. these sets are structured as one grey reference sequence group. secondly, according to a new calculation method of the grey relational coefficient, the individual relational coefficient and grade are computed. then according to the given calculation method for the group grey relation grade, the group grey relational grade is computed and the group grey relational grade matrix is structured. finally, according to the relational sequence, the insulation fault is identified for power transformers. the results of a large quantity of instant analyses show that the proposed method has higher diagnosis accuracy and reliability than the three - ratio method and the traditional grey relational method. it has good classified diagnosis ability and reliability
基於變壓器油中溶解氣體分析,提出了一種基於群灰色關聯度分析的變壓器絕緣故障診斷新方法.首先根據故障類型與灰色參考序列構造,選擇變壓器典型故障樣本構造多組參考序列,這些參考序列組構成一個灰色參考序列群.其次根據給出的新的關聯系數計算方法,計算個體關聯系數和關聯度.然後根據給出的群灰色關聯度計算方法,計算群灰色關聯度和構造群灰色關聯度矩陣.最後根據關聯序識別變壓器絕緣故障診斷.通過大量變壓器絕緣故障診斷實例分析,所提方法診斷準確性與可靠性優於三比值法和傳統的灰色關聯分析方法,具有較好的分類診斷能力和可靠性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。Based on the preliminary knowledge of color coordinate, color space and color difference, in chapter 4, we focus on the image preprocessing, that is the gamut mapping between the color paper and the crt displayed image. color correction and its realization of our lcos digital image print head are also given in this chapter
在第四章,我們重點研究的用於數碼沖印的顏色校正模塊及其實現,這一部分在簡要介紹色坐標與顏色空間,色差計算公式的基礎上,將重點放在數碼彩擴機目標色域以及源色域色域映射方法,密度計密度空間以及色度空間映射關系,即時色度與密度空間的關系等的研究。A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method
提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求,選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化,再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法,通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍,以速度調節器和電流調節器的參數為染色體中的基因,通過遺傳演算法在搜索范圍中優化這些基因,獲得優化解.實驗結果表明,所設計的參數能使系統性能指標有顯著提高Based on the propagation law of the cross - spectral density function in the space - frequency domain, the properties of polychromatic vector gsm beams through a paraxial optical abcd system are studied. the analytical propagation expressions for the cross - spectral density matrix of vector gsm beams passing through a paraxial optical abcd system are derived, which permits us to study the propagation properties of vector gsm beams, including the propagation - induced polarization changes, effect of the spectrum bandwidth and irradiance distributions in a unique way. there are some applications of the theoretical results
基於空間一頻率域中交叉譜密度函數的傳輸理論,研究了多色矢量gsm光束通過abcd光學系統傳輸時偏振特性的變化規律,首次推出了矢量高斯一謝爾模刑fgsm )光束通過近軸abcd光學系統交叉譜密度矩陣的傳輸公式,並對矢量gsm光束傳輸中偏振的變化、譜寬的影響和強度的分佈等進行了統一研究。Colourless optical glass test methods - linear thermal expansion coefficient and transformation temperature
無色光學玻璃測試方法線膨脹系數和轉變溫度測試方法According to the practical observation, a math method to calculate the traffic capacity is discussed. a grey incidence analysis model is set up to analyze incidence degree between environment factors and the vessel accidents in port in order to find out the instinct reason in chapter 4. that the visibility and the vessel traffic are the most two important factors is concluded
第四章利用灰色系統理論對港口船舶交通事故主致因進行灰色關聯分析,並且對計算模型的改進提出了作者的見解,用灰色綜合關聯度的數學模型對沿海六個港口環境因素八個指標與船舶交通事故的關聯度進行了定量的計算;指出能見度不良和港口船舶交通量是港口環境中導致船舶交通事故的最主要影響因素。We use the c / s module, which provides technology means of land - use planning management flowing work. the flowing of graphic data and text and the function of leader examining is realized in the system by storage operational sign, which promote the transparence of examining operation. by using graphic editor function and spatial analysis faculty of gis, various especially function of graphic editor and area statistic for land - use operation are provided in this system
本系統採用c s運行模式,為土地利用規劃管理工作的網路化辦公提供了技術手段;應用存儲業務標識信息的數據庫設計思想,為項目用地規劃審查業務信息的網路流轉以及領導督辦、督察功能的實現提供了技術方法,提高了土地利用規劃管理工作的透明度;系統採用gis的圖形編輯功能和空間分析功能,提供了多種規劃特色的圖形編輯功能和土地管理中專用的面積統計功能。Sellmeier coefficients for the refractive indices of calcite at crystal different temperatures
冰洲石晶體色散方程解析研究及折射率溫度系數表達式First, this thesis studied the performance of the image processing system, such as the color principle of ccd camera, the radiation transfer principle of system, geometry optics model of system and so on. then the system hardware frame was established
首先,本文充分研究了火焰圖像處理系統中彩色ccd的工作原理、色度學原理、成像系統的輻射度學原理、幾何光學模型以及數字化成像原理,並建立了燃燒可視化監控系統的硬體框架。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。By using the way of gray correlation degree, this study analyzed the gray correlation coefficient, correlation degree and correlation order among seven main characters in 20 groups of parents and hybrids of two - row hulled malting barley
摘要研究採用灰色關聯分析方法,對20組二棱型啤酒大麥雜種一代及其親本的7個主要性狀之間的關聯系數、關聯度和關聯序進行了分析。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。Wavelet subband coding method has advanced considerably in 2d image compression. many effective embedded wavelet image coding methods have already emerged. we improve the spiht algorithm by expanding the coding method used for gray image to color image of the video
本文對已有的spiht演算法進行改進,充分利用其空間方向樹能夠高效組織小波系數的優勢,將其由針對灰度圖像的編碼方法擴展為對視頻序列彩色圖像的壓縮。According to the geological conditions of baise project, erosive bands and joint fissures, f6 fault and grout curtain are fully simulated to establish 3d numerical model of the dam and its foundation. 3d non - linear fem is used to analyze the stress and strain and to appraise the operation state of both the dam and it ' s foundation under different operation conditions. by overloading the upstream water level and reducing rock strength parameter, the dam foundation ' s degradation process is simulated and the damage pattern and paths are determined, and finally the safety factor is determined
2 、根據百色的地形地質條件,充分模擬了蝕變帶、節理裂隙、 f6斷層、灌漿帷幕等,較為真實地建立了壩體與地基相互作用的整體三維數值模型;採用有限元法對壩體及壩基在不同工況下的應力應變狀態開展分析,評價各工況下壩基的運行狀態;而後採用超載法和綜合法對大壩穩定性進行分析,模擬壩基的漸進性破壞過程,從而得到壩基在超載和強度下降過程中的破壞模式和破壞發展路徑,最終確定壩基超載安全系數和綜合安全系數。分享友人