空間多邊形 的英文怎麼說
中文拼音 [kōngjiānduōbiānxíng]
空間多邊形
英文
space polygon-
To settle the phonomenon of seasons, we design the boudary full of sunlight at the side of groud - floor space ; to make the peoples in the uptown have the feeling of safety and ascription, we optimize the quality of the enrance space ; we design the solid sight carport to improve the quality of physical environment, such as lighting airiness and sight
邊界效應的存在使住宅架空層在邊緣地帶具有更多的活力，我們通過構造措施在這里形成邊界陽光區，從而改善架空層在使用中的季節性現象；為了提高社區的人文品質，我們優化住宅的入戶空間，使居民具有更強的歸屬感和安全感；通過立體景觀車庫的設計，改善車庫內的採光、通風以及景觀條件，從而改善地下車庫的物理環境質量。Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located
首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。In this paper, the problem of calculating movement of piece is simplified to the problem of finding track line segments between vertices and edges, hence the time complexity is much reduced, and special cases such as inner cavity and inner nfp ( no fit polygon ) can also be tackled
摘要將多邊形滑動碰撞問題轉化為頂點和邊之間的軌跡線提取問題，從而降低了時間復雜度，並可統一處理邊界空腔和內部靠接臨界多邊形問題。On the base of fully utilizing the available data about tectonic maps and structural elements, the present paper has made synthesized research that used the ways of stratigraphic sequence edge unconformity analysis and stratigraphic thickness correlation analysis, and combined seismic - data interpretation, review of paleo - structure and ancient landform and research of tectonic evolution and petroleum system, and combined region and location, plane and profile and time and spatial. by the synthesis analysis on tectonic evolution of hetian paleo - uplift in tarim basin, the results indicate that : ( 1 ) hetian paleo - uplift is a sedimental and erosional paleo - uplift. the formation and evolution of the hetian paleo - uplift experienced three stages, that is, the uplifting and eroding stage of the caledonian period, the depositional stage of the hercynian period and the destroying stage of the himalayan period, and evolved from paleo - lift to inclining strap at last
本文採用地質和地球物理相結合的研究思路，運用多種技術手段和方法；在充分利用已有構造圖資料和構造要素資料的基礎上，運用地層層序邊界不整合分析法、地層厚度對比分析法，結合地震資料的精細解釋、古構造和古地貌的恢復、構造演化史研究、含油氣系統的研究，和區域和局部、平面和剖面、時間和空間的結合研究，對塔里木盆地和田古隆起構造演化及油氣關系進行了綜合分析，認為： （ 1 ）和田古隆起為一沉積?剝蝕性古隆起；形成於志留-泥盆紀；其構造演化可分為三個階段，即加里東期的抬升剝蝕階段、海西期的沉積階段和喜山期的破壞階段，最終由古隆起演變為一斜坡帶。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。It is indicated that the radius parameter is insensitive to the spatial shape of the edge zone of source and is mainly affected by the size of the central zone of pions emitted in high energy heavy - ion collisions
結果表明，半徑參數主要取決于高能重離子碰撞中多數介子產生的中間區域；對產生介子的邊緣區域的空間分佈形狀不敏感。We find out the ball basis of the space kn and define the h - ball curves with this ball basis
由這組基通過控制多邊形定義的曲線即是空間k _ n中的ball曲線This new basis provides properties analogous to berstein polynomials, including symmetry, zeros of the basis functions, positivity, normalization, etc. based on this new basis, we define a new kind of curves, to be called h - bezier curves, with control polygon
本文利用多項式混合雙曲形式在空間中構造了一組新的基，稱為h - b zier基，它具有類似於bernstein基的端點性質，零點階數，正性，正規性質，對稱性等性質進一步，文章通過控制多邊形的方式定義了h - b zier曲線The system uses the permanent magnet synchronous machine as the driver motor based on the idea of polygonal flux linkage locus and the permanent magnet brush - less motor is as the momentum balance motor by means of speed and current loop in order to track driver motor precisely and rapidly. the harmonious control of driver motor and balance motor is realized by making full use of the dsp hardware resource and complicated programmable logic device. the software design is composed of c and assembly language to realize motor control arithmetic of polygonal flux linkage locus
衛星天線伺服控制系統以正弦波永磁同步電機作為驅動電機，採用多邊形磁鏈軌跡法（電壓空間矢量法）的控制策略；動量平衡電機採用永磁無刷直流電機，通過電流環、速度環達到快速、精確跟蹤驅動電機的目的，確保了衛星姿態恆定；設計方案中充分利用了dsp硬體資源和復雜邏輯陣列實現了驅動電機和平衡電機的協調控制，並通過c語言和匯編語言的混合編程實現了電機的多邊形磁鏈軌跡控制演算法。In this paper, the method of dividing circle rotating magnetic field into polygonal step magnetic field and the step orientation characteristic of space rotating vectors are researched
本文研究了由圓形旋轉磁場離散為多邊形步進磁場的離散方法和空間旋轉矢量的步進定位特性。Space deformation is an effective tool for geometric shape modification in geometric modeling and computer animation system - however, the sampling problem for the polygonal object deformation is unsolved yet
空間變形是幾何造型和計算機動畫中一種重要的幾何外形編輯技術，但是多邊形物體的變形采樣問題還沒有得到很好的解決。This paper also analyzed some key problems in 3d triangulation from scattered points. new determining principles for the relationship of point and line in space and for convexo - concave vertices of space polygon is discussed which corrected the previous method and can be applied in space triangle mesh. at the end of this papar, the future research areaes of triangluation from 3d scattered points are demonstrated
本文還分析了三維空間直接三角剖分所要解決的一些關鍵問題，進而提出了空間中點與直線位置關系判別的新方法及空間多邊形頂點凹凸性判別的新方法，修正了以往演算法在應用上的局限性，使之能夠適用於復雜網格多邊形邊界。Abstract : basing on the introduction of brim - vector and face - vector, by means of analogy, the paper popularizes the cosine - theorem from flat - triangle to vacuum - polygon and arbitrary - polyhedron, concludes a series of generalized cosine - theorems which have symmetric and conformable form, and presents short and strict proof
文摘:在引入邊矢量及面矢量概念的基礎上，以類比作為手段，對餘弦定理進行由平面三角形到空間多邊形乃至任意多面體的一系列推廣，得出了形式對稱一致的一組廣義餘弦定理，並給出了其簡捷嚴謹的證明。The chemical components of silkworm pupa crust were analyzed, and its microstructure was characterized by using scanning electron microscope. the existing realtion of among chitin 、 protein and inorganic salt in silkworm pupa crust has been observed. the results show that the major protion of silkworm pupa chitin is in pupa crust, and it accounts for about one forth of crust weight, the out surface of pupa crust is regular polygon net vein characteristics. chitin takes honeycomb shape in chitin - protein complex and conjugated with protein. the inner space of chitin - protein complex net was filled with inorganic salts. thus the theory basis was provided for working out the process route of isolation pupa chitin
對桑蠶蛹皮的成分、結構進行了化學及掃描電鏡分析，確定其含有的主要成分及含甲殼素的數量，並對其中的甲殼素、蛋白質和無機鹽三者之間的存在方式進行了觀察.研究結果表明，蛹體中的甲殼素與灰分主要含在蛹皮中，甲殼素占整個蛹體成分的2 . 71 % ，占蛹皮重量的25 . 5 % ，蛹皮外表面呈規整的多邊形網狀結構，蛹皮中蛋白質與蜂窩狀的甲殼素相結合，呈層狀分佈，顆粒狀的無機鹽填充在甲殼素/蛋白質復合物構成的蜂窩狀的空隙中.這為制定提取蛹甲殼素的工藝路線提供了理論依據Though simulating the state of packing, adopting the experience of manual packing and heuristics knowledge to control the searching way and limit the search space, it changes the packing problem into the problem of searching best path in the state space
文中對多邊形的合成技術進行了研究，通過模擬布局狀態，吸取人工布局的經驗，採用啟發式知識控制搜索方向，限制搜索空間，把布局問題轉化為在狀態空間下尋找最優路徑的問題。Results showed that, attribute data obtained by this way avoided deficiency of polygon overlap way, as a result, the logistical consistency between map data and attribute data reached over 90 % on average. database pivot precision was 0. 18mm, data quantity during manipulation was decreased greatly, data treatment was more convenient, computation velocity was boosted greatly. workload of map and table pretreatment and edition was mitigated on large scale, spatial data precision was increase
研究表明：用該方法獲得的屬性數據，避免了多邊形疊加方法的不足之處，能使圖形數據和屬性數據邏輯一致性平均達到90以上，數據庫點位精度達到0 . 18mm ，且操作中圖層數據量大大減小，數據處理更為方便，運算速度大為提高；減輕了圖表預處理和編輯的工作量，使空間數據精度提高。The surface detail or offsets simulated by a normal map are always relative to either the polygon it ' s projected on ( tangent space ) or the object ' s orientation ( object space ) or the world ( world space )
（通過法線貼圖計算出的表面細節和偏移是總是相對于多邊形的投影方向或是物體的自身軸向（物體空間）或是世界（世界空間）的。 ）Firstly, singly linked lists are used as the data structure of this algorithm rather than doubly linked lists or trees as other algorithms use, so less memory space and running time are required. secondly, the relationship between the entry and exit points on the two polygons is found and argumentation, which, with the reasonable operations on the lists, reduces the times that the lists are traversed and allows the polygon to be input clockwise or counterclockwise
該演算法使用單線性鏈表數據結構，與其它使用雙鏈表或樹結構的演算法相比具有佔用空間少及處理速度快的特點；其次，找出並論證兩個多邊形之間進、出點之間的關系，並通過合理的數據結構處理，減少了演算法對多邊形鏈表的遍歷次數，而且允許多邊形既可以按順時針方向也可以按逆時針方向輸入。Virtual reality ( vr ) applications, computer - aided design ( cad ) applications and scientific visualizations often need user - steered interactive displays of very complex polygonal environments, for which, however, the computation and storage requirements far exceeds the capacity of modem graphics hardware
虛擬現實（ vr ） 、計算機輔助設計（ cad ）和科學計算可視化應用通常要求能夠對復雜的場景結構進行互動式顯示和觀察，然而這些多邊形場景的計算復雜度和存儲空間要求已經大大超過了當前圖形硬體的承受能力。The job of this paper was divided into two parts mainly. firstly, the numerical simulation approach for polygonal aggregate was presented. secondly, the space analysis model for dynamic modulus of elasticity of concrete was set up, and a series of theories analysis and calculations to the model were performed
本文的工作主要分為兩部分，首先提出了混凝土多邊形骨料的數值模擬方法，然後為了研究混凝土的動態彈性模量建立了空間分析模型，並對模型進行了一系列理論分析和計算。分享友人