距離分佈 的英文怎麼說

中文拼音 [fēn]
距離分佈 英文
distance distribution
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
  • : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
  • 距離 : 1 (相隔的長度) distance; range; gap; space; spacing; separation 2 (相距) be apart from; be aw...
  1. An isolated point " s statistic excluding method is proposed in this paper to eliminate crassitude error in clouding data, which include plenty of oddity data. the method based on the distance between two neighbour points can eliminate the data beyond normal distribution. a error limitation of angle and chordal highness method is used to filtrate clouding point

    針對大量含奇異點的數據點雲,本文提出了剔除粗大誤差的孤立點統計排異法,該方法根據對相鄰點的統計,剔除在正態以外的點;對大量數據的精減,利用角度和弦高的最大允許偏差法進行點雲精減。
  2. To reduce the marking distortion, using the vertical 2 - dimension galvanometer distributing and f field lens focalize, the distance of the second galvanometer to the machining plane is the focus f. to avoid too hign temperature to distroy the resonance cavity because of too long marking time, cooling system and self - protector is used in the design

    為減少打標畸變,採用垂直二維振鏡, f物鏡聚焦,將激光束經第二個振鏡反射後到加工平面的為焦f ,為了避免打標時間過長,溫度過高破壞諧振腔,在設計中加上冷卻系統和自我保護裝置。
  3. The optical near - field distribution and propagation properties of solid immersion lens system are analyzed in detail when illuminated by linearly polarized focusing gauss beam. the change of the optical intensity and beam dimension at the bottom of solid immersion lens with different refractive index and different distance are discussed. the simulated results reveal that the higher the refractive index is, the stronger the optical intensity and the smaller the beam dimension at the bottom of the solid immersion lens will be

    編制了對固體浸沒透鏡近場超高密度光存儲系統進行模擬的二維時域有限差程序,實現了對固體浸沒透鏡光存儲系統的數值模擬;著重研究了線偏振的高斯光束通過固體浸沒透鏡的光傳輸和近場光場特性;析了固體浸沒透鏡底面出射光強、光斑直徑隨固體浸沒透鏡折射率的變化、光透過固體浸沒透鏡后的強度、光斑直徑隨開固體浸沒透鏡底面的變化。
  4. A new planning method - analysis of factors of point line and area and control points optimization, which is based on the analysis of urban spatial structure, is tried to put forward. analyzing the important functional clusters in the spatial layout of the urban, the intracity medium - long distance vehicle traffic major directional desire line how the urban to link up with the highway network and the whole structure of expressway system, the skeleton of the expressway network can be obtained. using the degree of importance method analytic hierarchy process ( ahp ), one or several intersections can be selected

    該法對城市空間結構布局中的重要節點、主要的中長機動車交通流徑期望線的、大城市與區域干線公路網的銜接以及快速路系統線網的整體結構等進行層次的析研究,得出快速路系統線網構架,運用重要度法、層次析法找出大城市重要功能組團中重要程度最高的一個或數個關鍵交叉口作為快速路系統線網規劃的控制點,考慮快速路線路走向的控制點對線路走向進行優化。
  5. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定,而格局有可能受樣方大小的影響,且析過程中沒有涉及聚塊間密度差的問題,因而無法掌握種群的聚塊大小差別及聚塊內個體間的散程度.本研究採用無樣方法,測定不同生境的格氏栲種群空間格局,析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義,紋理則是體現聚塊內個體間的散程度與諸聚塊間的程度.測定結果表明,格氏栲種群格局強度從高到低排列次序為:木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷;格局紋理從粗到細的順序是:木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此,格氏栲空間格局類型及與格氏栲生物學特性及生境的關系密切
  6. According to the mean message traversal, the performance of leo / meo mobile satellite communication networks with intersatellite links ( isls ) is analyzed in this paper. three different traffic patterns are used in the analysis. if the isl number per satellite increases, the advantage of packet switch is more significant than that of circuit switch

    本文提出了一種基於信息平均傳輸的中/低軌衛星移動通信系統星際鏈路網路性能的析方法.根據三種不同的業務模型對繁/簡兩種網路的信息過網時延和呼叫丟失率進行了析.通過增加網路中每個節點星際鏈路的數目可以改善網路的性能,而且這種改善對採用組交換的系統比採用電路交換的系統大
  7. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體,主要在兩個區域;火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近,或近日接近甚至小於日地平均,其運動可深入到地球軌道的內部,這將導致該類小行星與地球(還有金星、火星等)十靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難,包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法(包括辛演算法)計算效果的比較,根據小天體運動自身的特性,給出了相應處理措施,從而可提高計算結果的可靠性
  8. In this work, some species of palmae cultivated in the xiamen botanical garden had been selected to be analyzed their genetic diversity with rapd ( random amplified polymorphic dna ) technique. according to the result of genomic dna amplified with pcr ( polymerase chain reaction ), genetic distance and similarity between different palm species were calculated on nei " s estimate of similarity and genetic distance. a primary but first time research at the phylogenetic relationships of some genera and species, the molecular classification and identification of some puzzling species of palmae was carried out through upgma ( unweighted pair group mean average ) cluster analysis of the genetic distance together with comparative study of the morphological structure characteristics

    本文在初步調查析了棕櫚科植物在我國的自然、引種馴化情況以及該類植物在廈門地區栽培應用狀況的基礎上,首次採用rapd子標記技術,對廈門萬石植物園引種的一些棕櫚科植物的遺傳多樣性進行了研究,根據pcr對基因組dna擴增的結果,用nei ' s相似性系數計算了不同植物間的遺傳和遺傳一致度,通過對遺傳的upgma聚類析,並結合形態類的特點,對棕櫚科植物的屬、種間的系統類關系和一些疑難種的類鑒定進行了初步研究。
  9. When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis

    對壓制式干擾來講,干信比越大,雷達的發現目標的概率就越小,由於散式干擾的干擾效能在於其合成功率,在散式干擾單元之後,各個干擾源與被干擾對象之間的的不確定性,帶來了干擾信號相位的不確定性,增加了析干擾效能的復雜度。
  10. At first, the text is segmented to words and converted to a sequence of part - of - speech tags ; then based on the pos tags sequence parameters and phrase - break distance information from training, markov model is used to get the most likely phrase break sequence

    首先,文本進行詞,並轉換為一列由詞性標記所組成的序列;然後使用馬爾可夫模型,利用人工標注數據庫訓練詞語連接處詞性標注序列的概率和連接類型序列的信息,得到輸入的詞性標記序列對應的具有最大似然概率的連接類型序列,最後利用后處理規則進行適當的糾錯。
  11. The species, heights, diameter breast heights, canopy widths and plant numbers in 38 quadrats of 6 belt transects, which were located in yingsu cross - section and kaerdayi cross - section lying in the lower reaches of tarim river where populus euphratica concentrated, were investigated to study the distribution patterns, aggregation intensities and distribution pattern scales of p. euphratica populations at different distances away from the river

    摘要在塔里木河下游胡楊集中的英蘇、喀爾達依斷面,設置了6條樣帶38塊樣地進行植被種類、高度、胸徑、冠幅、株數等因子調查,研究了不同胡楊格局類型、聚集強度及其格局規模。
  12. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸,測量了不同光闌孔徑和不同稜角情況下的最大無衍射和傳播軸附近橫截面內微小光孔中的光強,實驗結果顯示當激光光束經過軸棱錐轉換後有一段功率變化很小,且近似貝塞爾,符合無衍射光束的特性;經過聚焦后,呈現三維中空的光束bottlebeam ,實驗結果與理論析基本吻合。
  13. This paper mainly analyzes control delay at urban signalized intersections. based on the survey data, this paper talks about vehicles movement characteristics of arrival and depart process, then the queueing headway distribution is obtained, and the suggestion that saturated flow should be measured from the sixth queuing vehicle is offered. using random process theory analysis and computer simulation, the queuing length distribution model is obtained

    本論文針對平面信號控制交叉口的延誤問題進行了析,在實測數據析的基礎上,探討了車輛到達過程和開過程的運行特性,給出信號交叉口排隊散車頭時模型,提出飽和流率的測量應從第六個開的排隊車輛算起;運用隨機過程理論和計算機模擬的方法得到了信號交叉口排隊長度模型,在此基礎上運用協調變換的方法改進了車輛延誤模型。
  14. Contrasting the results of simulation and the experiment for depositing the 3 inch thin films by icds technique, the center position of substrate and the target is in a 18mm offset, the thickness distribution homogeneity is under 8 %. based on the analyses of the theoretic heat distribution for the radiant heating system, a 3 inch size radiant heater fitting for the requirement is designed and made, whose temperature difference is under 6 %

    其次,對3英寸范圍內的膜厚進行了理論模擬,在此基礎上和試驗結果對比析,發現:在倒筒靶直流濺射裝置下,如果採用一種讓基片中心和靶中心處于相對偏心為18mm的位置來制備3英寸薄膜,其膜厚的均勻度范圍控制在8以內。
  15. Notice that the energy eigenvalues are not equally spaced.

    注意,這些本徵值並不是等距離分佈的。
  16. Calibrating the gravity model consists of evaluating the parameters of the impedance function ( or the values in the friction factor table ) so that the gravity model reproduces, as closely as possible, the base year productions and / or attractions and the base year trip length distribution

    校準重力模型就是計算阻抗函數參數(或者摩阻系數表中的值) ,使其盡可能吻合基年產生和吸引,以及基年的出行距離分佈
  17. Comparing the catchments with the same conditions at the same scales, we found that at the small scale catchments, the factor directly impacting the runoff variation and sediment variation was the relative distribution location at sloping fields, and at the median scale catchments, was the slope distribution of land use components, while at the large scale catchments, the distance distribution of land use components

    在相近條件的同尺度集水區之間比較發現,小尺度集水區土地利用類型的坡位格局對徑流和泥沙變化有較直接的影響,中尺度集水區土地利用類型的坡度格局和大尺度集水區的土地利用類型的距離分佈格局對徑流和泥沙土地利用空間格局對侵蝕產沙過程的影響的變化影響較大。
  18. To improve the performance of the traditional icp method for the large data models of mesh watermarking, this thesis develops a new icp variant based on the framework of mesh multiresolution analysis. the author presents a novel method for acquiring the initial approximate transformation in terms of the distribution feature of points around the centroid

    為避免迭代落入局部而非全局最優解,本方法利用網格的多解析度表示特性和網格上點到質心距離分佈的特徵信息,快速有效地確定初始矩陣。
  19. A device was constructed, which is made up of a detector, a three demension micromovement device with high precision which can be controlled at long distance, an enough large target chamber, a serial balzers pressure stabilizing system which can measure and adjust the pressure and an electronic acquiring system to measure the ionization distribution

    它包括探測器、可遠遙控的高精度三維微動裝置、足夠大的靶室系統、可對工作氣體的氣壓進行測量和調節的氣壓穩定系統以及進行電研究的電子學系統。
  20. According to the successful application to pattern recognition of small category for neural network, in this system, we use a distance classifier based on gross periphery feature for rough classification in order to classify the total chinese character set to some small sets, and then a bp network classifier based on the probability distribution of pixels with elastic meshing is used for fine recognition

    在此系統中,我們針對神經網路在小類別模式識別中的成功應用,先採用基於漢字粗外圍特徵的類器作為粗類,以將待識漢字集成若干個小的漢字集合,然後用基於漢字彈性網格像素概率特徵的bp神經網路類器作為細類,以實現漢字識別的目的。
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