index gradient 中文意思是什麼
index gradient
解釋
指數梯度-
Compared with current instruments, the setup can decrease disturbance of disorder radiation by using double layer refractive index sample matching vessel, and it can increase collecting and transmitting efficiency of radiation by adopting single mode fiber with gradient refractive index lens. with a low power laser, the sample has a low scathe, and the laser and the measurement system can be integrated conveniently
與現有的同類型儀器相比，該儀器採用雙層折射率樣品匹配池減少了雜散光的干擾；採用帶梯度折射率透鏡的單模光纖接收、傳輸散射光信號提高了散射光的收集傳輸效率；用低強度的激光避免了對樣品的輻射損傷，同時可以使激光器和系統集成在一起，整個系統小型實用。 -
The course covers non - sequential ray tracing, sources, detectors, objects, ray splitting, scattering, ghost analysis, stray light analysis, prisms, fresnel lenses, multi - element lenses, gradient index, polarization and thin film modeling
本課程涵蓋了非連續光線的追跡、光源、探測器、物體、分光、散射、鬼像分析、雜散光分析、棱鏡、菲涅耳透鏡、多元件透鏡、梯度折射率、偏振和薄膜的建立。 -
Compared with the reality, it shows that this model and its parameters are defined reasonablly. to analyse the arrangement of drainage system with different spacings and depths, with unsteady flow formula and benefit index, this paper gives a two - dimensional non - linear programing model for arrangement of drainage system in the barley field, which can be solved by the method of projected gradient. by this model, we make out the optimum solution of spacings and depth of pvc pipe in littoral area of changjiang river that is s = 21. 5 8m, h = l. lm
論文通過對不同埋深、間距的塑料暗管排水布局的分析，結合非穩定流公式和效益指標，提出了麥田排水暗管布局的二維非線性規劃模型，並利用梯度投影法求解，得出長江下游濱海地區塑料排水暗管埋設的最優方案為埋深h = 1 . 1m ，間距s = 21 . 58m 。 -
A type of small - sized interferometer is reported, which makes use of the coupling of optical fiber and gradient index lens ( grin ) to form parallel light beams
摘要介紹一種超小型光纖導光干涉儀，它利用光纖和自聚焦透鏡的耦合來形成平行光路，利用半反和全反光學膜片分光。 -
This work studies a kind of polymer gradient reflective index ( grin ) micro - sphere - lens
本工作研究一類具有梯度折射率（ gradientrefractiveindex ， grin ）分佈的高分子聚合物微球透鏡。 -
Based on this, the upper controlling index of soil water content is 80. 4 % and the days of waterlogged and salinization tolerance is 3. 2 days. the moisture and salinization movement mathematical model in the field under subdrainage condition is based on the assumption of neglecting the effects of horizontal hydraulic gradient, it can analogy the changes of soil water content and salinization which are changed with times and depth
論文在忽略水平方向水力梯度影響的假定下建立了排水條件下麥田水鹽運移模型，模擬土壤水鹽含量隨時間、空間的變化情況。經與實測資料對比發現，計算值與實測值較為接近，故該模型及參數的確定是合理的，可用於預測麥田水鹽的動態變化。 -
A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function
把近代最優控制論方法引入軸流透平葉片的設計，在優化的軸流透平子午通道內，建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式，並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下，使級的某一性能指標（如級的功率）達到最優的最優控制問題，應用「代價函數法」及「共軛梯度法」編制計算程序，計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈，結果是令人滿意的。 -
Diversity index on different terrain varied between 0. 28 to 1. 75, the terrain followed the sequence of level land - plain > sloping land - medium - gradient mountain > sloping land - medium - gradient hill > level land - valley floor > sloping land - medium - gradient escarpment zone > level land - depression > steep land - high - gradient mountain ; the evenness index on different terrain varied between
發育于不同地形上的多樣性指數值范圍為0 . 28 1 . 75之間，從高到低依次為平原、中坡度、中坡度丘陵、山麓平原、中坡度峭壁帶、低洼地和高坡度山地;均勻度指數范圍為0 . 26 0 . 84之間，從高到低依次為中坡度、平原、山麓平原、中坡度丘陵、中坡度峭壁帶和低洼地。 -
Studies on the transverse optical proporties for buried gradient - index glasses waveguide
掩埋式變折射率玻璃光波導的橫向光學特性 -
The higher landscape heterogeneity, the closer to nature secondary forest. along the gradient, landscape congregation index exhibits descendent tendency, showing a significant relationship between the extent of patch mosaic and the extent of disturbance, according to changes of landscape mean shape index ( lmsi ) and landscape mean fractal dimension index, integrated disturbance ( nature disturbance, human activities, vegetational inner succession or population dynamics ) tend to enhance
景觀聚集度指數是隨著梯度區呈下降的變化趨勢，表明斑塊之間的鑲嵌聯系的程度與受到的干擾程度有極為重要的關系。從景觀平均形狀指數和景觀平均分維數的變化，可看出綜合干擾（自然干擾、人為活動、植被的內源演替或種群的動態變化）是呈增強的發展趨勢。 -
With wavelet based gray - gradient symbiosis matrix to compute the ununiformities of gray distribution and gradient distribution, a kind of pollution index was defined
利用小波的灰度梯度共生矩陣計算基於鄰域的圖像灰度分佈不均勻性和灰度梯度分佈不均勻性。 -
The digital oral endoscope is designed and realized in this paper, which is based on the technologies of digital signal processing and database, by using gradient refractive index rod lens, that is grin - lens, and photo - electronic imaging device
摘要以梯度折射率透鏡（自聚焦透鏡）為攝像鏡頭，通過光電轉換，結合數字信號處理和數據庫技術，設計並實現了數字化口腔內窺鏡。 -
Micro - lenses with a spherical gradient index ( grin are a new kind of optical device. their optical properties are chiefly depending on their non - uniform index distributions. there are many merits about them
梯度折射率（ grin ）微球透鏡及其陣列是一類新型光學器件，主要依靠介質特殊的非均勻折射率分佈以實現其各種光學功能，具有極簡單的幾何形狀。 -
Chapter 2 : the beam propagation of x - ray in an inhomogeneous plasma with a continuous varied refractive index is studied. we emphasize, theoretically and numerically, on the analysis of the effect of refractive index gradient on the beam parameters
第二章：研究了x射線激光光束在折射率連續變化的非均勻等離子體介質中的傳播，從理論和數值模擬上著重討論了折射率梯度效應對光束參數的影響。 -
Nondimensional distribution index was able to describe the spatial pattern of each landscape patch type and indicate the affection of the topography on the change of the pattern. for excluding the disturbance of the area, distribution index can describe the difference between the actual distribution and the standard distribution of each patch type on the topographic gradient. and according to this, kinds of comparative analyses were availed
運用地形分佈指數克服了不同地形因子各梯度內面積的差異，同時也消除了各景觀斑塊類型的面積比重差異，能夠準確地反映不同景觀斑塊類型在一定的地形因子梯度上的實際分佈情況與標準分佈的偏差，使分析不受面積的影響，其結果具有較好的可比性和可解釋性；且通過對優勢分佈范圍、分佈趨勢線特徵的分析，能夠獲得森林景觀空間分佈格局及其變化的多種信息。 -
The result showed that landscape diversity index and evenness index increase along the gradient, whilst dominant index decrease along the gradient zones. in general, landscape elements present concentrative d istributing patterns for great size, with landscape patch density and edged density smaller and landscape heterogeneity lower than others within closing to gradient of the city
優勢度指數呈相反的變化趨勢。在接近城市的梯度區內一般是景觀要素以大面積相對集中的分佈格局，景觀斑塊密度與邊緣密度較小，景觀異質性較低。越接近天然次生林區，景觀異質程度越大。 -
Firstly, this paper puts forward basic intentions of unbalanced development of regional economy as well as measure index on basis of analyzing related concepts and theories on balance and unbalance, economy growth and economy development, theory of balanced development and theory of unbalanced development. secondly, this part makes an analysis and evaluation on theory of growth pole, accumulation and circulation theory of regional economy development, gradient spreading theory of regional economy development, theory of scale economy and congregation economy, motion theory of economic regions etc. thirdly, this part summarizes the concept, features, types and laws governing formation and development of industrial group, as well as their relation with regional economy development, and points out the view that industrial group is the important factor of unbalanced development of regional economy
首先，通過對均衡與非均衡、經濟增長與經濟發展、均衡增長論與非均衡增長論等相關概念和理論進行解析，提出區域經濟非均衡發展的基本內涵及其測度指標；其次，對增長極理論、區域經濟發展累積循環理論、區域經濟發展梯度推移理論、規模經濟與集聚經濟理論、經濟地域運動理論等有關區域經濟非均衡發展的理論進行評析；然後，對產業集群的概念、特徵、類型、形成發展的一般規律及其與區域經濟發展的關系進行了概括和總結，提出產業集群是區域經濟非均衡發展的重要機制的觀點。 -
Chapter 1. simply introduce the background knowledge of gradient index optics, micro - optics and polymer gradient index material. besides, elaborate the contents and significance of the research
第一章簡要介紹梯度折射率光學器件、微小光學及高分子梯度折射率材料的發展和現狀，以及本工作的研究內容和意義。 -
Main contents as followed : chapter 1. simply introduce the background knowledge of gradient index optics, micro - optics and polymer gradient index material. besides, elaborate the contents and significance of the research
本論文的主要內容如下：第一章簡要介紹梯度折射率光學、高分子梯度折射率材料的發展歷史與現狀，及本工作的研究內容與意義。 -
Polymer gradient refrective index ( grin ) micro - sphere - lens are a new - type optical element of very simple geometrical shape, whose optical function is mainly achieved by the inhomogeneous reflective index distribution of the medium
梯度折射率（ gradientrefractiveindex ， grin ）微球透鏡是一類具有極簡單幾何形狀的新型光學器件，主要依靠介質內特殊的非均勻折射率分佈實現其各種光學功能。
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