character density 中文意思是什麼
character density
解釋
字元密度-
Domain theory provides the mathematical foundation for denotation semantics of computer program languages. it is characterized by the close connection between order and topology, which makes it the common study field of both computer experts and mathematicians. weight, character and density are generally called cardinal functions
一種domain范疇要成為某種語言的語義學模型其基本條件是笛卡爾閉的，因而研究domain范疇的笛卡爾閉性或者說尋找笛卡爾閉的domain范疇就自然成了domain理論中一個十分基本的問題。 -
This thesis described fuel management system theory and system reliability design to set forth system fuel management general design thought. many technical details are discussed in the thesis such as : fuel quantity measurement, fuel mass character calculation, fuel density measurement, the accuracy of fuel quantity measurement, the optimum location of fuel gauge probes in the fuel tank. the author brings forward a new method which is based on the software of catia to calculate fuel mass character
本文對燃油管理系統的工作原理和可靠性設計等問題進行研究，以明晰燃油管理系統的總體設計思路；並對數字式燃油量測量、燃油質量特性計算、燃油密度測量、提高燃油量測量精度的措施、油箱油量傳感器安裝位置優化等具體技術展開研究；提出了一種基於catia軟體的燃油質量特性計算方法；論文最後探討了燃油管理系統的未來發展方向。 -
Based on the reseaching of lycoris leaf micro - morphology characters by sem scanning, light microscope viewing and using paraffin method in the article, we try to provide the proofs of experiment and the efffective characer indexes to discuss the system and evolution of the lycoris. we find these microscope characers through reseach are as follows : the arrangement type, density and the length of stoma ; the shape and length of the epidermal cells ; the ridge of epidermis ; the transverse shape of leaf ; the number of the vascular bundle ; the style of vessel arrangement of vascular bundle in the middle vein ; the layers of palisade tissue ; the ratio of the thicken of palisade tissue to that of spongy tissue ; the angle number of the middle leaf ; the type of ventilating cavity etc. these characters are different from those of species in lycoris, meanwhile these characters are similar to those of some species in lycoris. so these characters can be used as the character indexes for differentiating species and reseaching systematic evolution of lycoris ; we can divide lycoris into two subgenus by these characteristic indexes : the species of one subgenus are l. aurea ( l " her. ) herb, chinensis traub, l. caldweuii traub, l. anhuiensis y. hsu et q. j. fan, l. longituba y. hsu et q. j. fan ; the species of another subgenu s are l. houdyshelii traub, l. albiflora koidz.,
研究結果表明：葉表皮的氣孔排列方式、長度、長寬比，脊的明顯與否，葉表皮上的顆粒紋飾的多少、大小，葉表皮細胞長度、長寬比、垂周壁形狀，上部葉柵欄組織細胞層數、葉的維管束數、葉中脈導管組成數目，氣腔類型，葉的脊部遠軸面的角數，葉緣的形狀等這些特徵在種間存在差異，同時，在有些種之間又有相似性；因此，這些特徵既可以作為區分種的證據，又是研究石蒜屬植物系統演化的性狀指標，根據這些性狀指標，可以將石蒜屬植物大致分為兩個亞屬：一是忽地笑、中國石蒜、短蕊石蒜、安徽石蒜、長筒石蒜，二是江蘇石蒜、乳白石蒜、石蒜、玫瑰石蒜、稻草石蒜；在兩個亞屬中其中有些種如忽地笑、長筒石蒜、中國石蒜的親緣關系則更近些。 -
For the low pr hadrons, the bayon number density is very low and shows the evidence of early stage equilibrium. there exists elliptic flow character for the high pt hadrons
對于低竹強于，在h 0處呈現較低的重子數密度，有早期平衡的明顯證據；對于高ptjffi子，有橢性流的特點。 -
For river networks, its growth subjects are notably influenced by climate, geotectonic movement, and mankind actions. and its character certainly reflects the different conditions of geotectonic movement. statistical analysis of some characters of the river networks including the river direction s, the geometric fractal of main river s and the river network density s in jiaodong peninsula showed that the river networks respond obviously to the neotectonic movement. the area is mainly divided into the west part and the east part by taocun - dongdoushan fault during neotectonic movement
水系的發育受氣候構造運動和人類活動的顯著影響，構造運動狀況的差異必然反映在水系特徵上。通過對膠東半島水系的展布方向水系分形諸水系特徵的統計分析，揭示出水系受新構造運動有較明顯的響應，桃村東陡山斷裂是本地區東西部新構造上的主要分界。 -
Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed
本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。 -
The topographic feature is one of the main factors that influence the process of soil erosion and sediment yield of small watershed. the quantitative parameters of small watershed topographic feature are average watershed slope, average slope length, gully density and so on, which are based on the quantitative method of slope character and do not reflect the essential character of the small watershed topographic feature, which are complex
地貌形態是影響小流域侵蝕產沙的主要下墊面因素之一，其量化參數一般繼承坡面地貌特徵量化方法（如坡度、坡長因子）而採用平均坡度、平均坡長及溝壑密度等參數，這些參數僅是對流域地貌形態的概化和單因子表達，沒有真正反映流域地貌形態復雜的本質特徵和相互聯系。 -
In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector
在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件： （ ? ）小的3db帶寬b ，即最小的主瓣寬度； （ ? ）最小的旁瓣最大峰值a ； （ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。 -
Ict can clearly, directly and accurately show us the structure, density change, character of a absence, position and size of measured profile by computer image
工業ct能以計算機圖象的形式，清晰、直觀、準確地呈現被測物體斷面內部的結構、密度變化以及缺陷的性質、位置及大小。 -
This article is mainly aim at tuo28 down reservoir of shengli oil field. through deeply analysis of geological character and its developing course. the important problems are found, first, flood pattern is not perfect, the reserivor is serious watered out in horizontal section, waterflood susceptibility is bad, the contradiction between oil and water in reservoir is serious, the interference between each producting formation is great, the crude oil is density, the reservoir have not enough energy, anisotropies is very serious. due to those facts, it is difficult to improve oil production by general technique
本文通過對勝坨油田坨28下油組油藏地質特點及開發歷程的深入分析，找出目前存在的主要問題有：注采井網不完善，平面上水淹嚴重，注水效果差，油水矛盾突出，層間干擾嚴重，原油稠，油藏能量低，儲層非均質性強，致使常規彩油工藝開發難度大。 -
Effect of sowing density on biology character and yield of tagetese recta l
種植密度對萬壽菊生物學及產量性狀的影響 -
Liquefaction of saturated sands is a greatly complicated phenomenon. its generation, development and dissipation are restricted by physical property, stresscondition and boundary condition of soils. in addition, there are a lot of influencing factors such as density, structure property ， clay content, degree of saturation, gradation, hydraulic conductivity, initial stress condition and dynamic load character and so on
砂土液化是一種相當復雜的現象，它的產生、發展和消散主要由土的物理性質、受力狀態和邊界條件所制約，存在許多影響因素，例如土的密度、土的結構性、粘粒含量、飽和度、級配、透水性能以及初始應力狀態和動荷載特徵等。 -
By changing the negative bias current density, gaseous ratio and total pressure, nanocrystalline diamond film is prepared by ion - assisted bombardment method at the substrate temperature of 700 ? 00 ? and mixture gaseous of ch4 and h2 the effect of growth parameters on the diamond film is studied. the diamond film presents very low compressive stress and excellent field emission character
採用離子輔助轟擊法，以ch _ 4 、 h _ 2為源氣，襯底溫度為700 900 ，通過改變襯底負偏壓、 h _ 2和ch _ 4氣體比例以及工作氣壓，制備出納米金剛石薄膜，並對工藝參數對金剛石薄膜沉積的影響進行了研究。 -
Put up the cold experiment of the three - phase fluidized bed with multiple orifice balls, research on the influence of the superficial gas velocity, the filler static height and the liquid density on the resistance character and the desulfurized efficiency, summarize the virtue of multiple orifice balls
摘要對多孔球為填料的三相流化床進行冷態試驗研究，研究不同工況下氣體空塔流速、填料靜止高度、噴淋密度等因素對流化床阻力特性和脫硫效率的影響。 -
From langevin equation, the stochastic resonance characteristics of bistable system were investigated, including the probability density function and other character numbers
通過朗之萬（ langevin ）方程，本文詳細研究了雙穩態系統的隨機共振特性，得出系統穩態輸出的概率密度分佈函數及其數字特徵。 -
With the development of radar technology, radar system has been more diversiform and complicated, which make ecm face much more complex electromagnetic environment. how to sort and analyze signal exactly is an important research of ecm. in this paper, we mainly research the signal sorting 、 system simulating and dsp realizing : 1. the paper introduces the environment of ecm and analyses the character of time domain 、 frequency domain 、 air space 、 power density and polarization detailedly
本文主要就是研究復雜電磁環境下的彈上電子對抗系統信號分選關鍵演算法、系統軟體模擬以及dsp的實現，主要包括以下幾個方面: 1 .對電子對抗環境進行了介紹，並對雷達偵察機的信號環境的時域特徵、頻域特徵、空域特徵、功率密度（能量）特徵以及極化特徵進行了詳細的分析，得出了對雷達偵察接收機信號分選系統設計的主要依據。 -
Methods of dust character test - part 2 : determination of effective density - pyknometer method
粉塵物性試驗方法第2部分：有效密度的測定比重瓶法 -
Current. in order to make diffluent piers with low ridge to be popularized and applied, the surface wave of low fr. current is chosen as the research object. we measure the surface wave elements and the velocity distribution of various diffluent piers scheme by the experiment of physical model. we also analyze the average wave height, the the average value of the square of wave, unit width of the wave ' s energy, the probability density distribution of wave height, and the power chart character, so as to reveal the weakening wave mechanism of the diffluent piers
低fr水流的核心是波浪問題，為了低坎分流墩的推廣應用，本研究以低fr水流的表面波浪作為研究對象，通過物理模型試驗，對各種分流墩方案消能工的下游水面波浪要素、流速分佈進行測試，分析低坎分流墩下游波浪的平均波高、均方根、單寬波能、波高概率密度分佈及功率譜特性變化規律，從而揭示了低坎分流墩的削波機理。 -
On the basis of the strategy of sustainable development, by our country ' s character of high dense population, high density use of urban land, tight concentrated form, single center tight configuration, paper applies coordinated idea of transport plan and land use plan, insists on the principle of public traffic development priority, seeks a high accessibility low demand model of land use and transport, bringi forward a new plan method of transit - oriented dev elopment to deal until connection between the effective use of urban land source and continual increasing demand of transport, thoroughly solves urban transport congest problem resulted by the imbalance of supply and demand of transport. also paper detailed analyzes and studies the concept, soit. general design principles, particularity of transit - oriented development region
在可持續發展戰略的指導思想基礎上，論文根據我國城市人口高度密集，城市土地高密度利用，以集中緊湊型為主的布局形態，單中心圈層式緊密結構的特點，運用交通規劃與土地利用規劃的協同觀念，堅持優先發展公共交通的原則，尋求高可達性、低交通需求的土地利用? ?交通系統發展模式，提出以公共交通為導向的城市土地利用形態的新的規劃方法，處理好有效利用城市土地資源與不斷增長交通需求之間的關系，從根本上解決交通供求關系不平衡而造成的城市交通擁擠問題，並對公共交通運輸導向開發區的概念、分類、設計總則、特質作了詳細分析研究。 -
Taking the fourier transform of this windowed ccf produces the time - domain filtered cross spectral density ( tdfcsd ). the snr can be improved with using the character of noise which distribute uniformly in frequency domain
再進行傅立葉變換產生時域濾波互相關譜密度（ tdfcsd ） ，利用噪聲在頻域中均勻分佈的特性使snr得到改善。
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