選點三角形 的英文怎麼說
中文拼音 [xuǎndiǎnsānjiǎoxíng]
選點三角形
英文
preliminary triangle- 選 : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
- 點 : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
- 三 : Ⅰ數詞1. (二加一后所得) three 2. (表示多數或多次) more than two; several; many Ⅱ名詞(姓氏) a surname
- 角 : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
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The paper presents several aspects in partition rectification and visualization of raster image. adopt technology of visualization for scientific calculation, vector diagram of deformation 、 contour chart of deformation and drawing of three - dimensional are realized. delaunay tin in view of deformation feature is constructed on base of selected grid control points and methods and mathematical models for partition rectification are realized based on the delaunay tin. software of geometric rectification for large scales are realized and applied in project
本論文針對柵格影像的變形可視化及分塊糾正展開研究,取得了以下幾方面的研究成果:一、採用科學計算可視化技術,繪制變形矢量圖、變形等值線圖和三維效果圖,實現了柵格影像變形特徵的可視化;二、提出了在格網控制點( gcp )數據基礎上選擇性構造顧及變形特徵的delaunay三角網,並基於構造的三角網實現了分塊糾正的方法和數學模型;三、採用vc編制了影像幾何糾正軟體,實現大比例尺掃描地形圖的糾正,並在工程中得到應用。Secondly, the core conception of cognitive towards information science is " human as essence ", and bring forward that the information system is one that can boost up and magnify the existence value, ability and specialty of " human ", and provide users a system which is active and unforced, rather than force users to arduously adapt system. thirdly, from the visual angle of cognitive, information - seeking or information - using is a kind of cognitive behavior in essence. fourthly, cognitive style is the development trend of future information retrieve system, it can reveal the thinking - process of users during retrieving on - line, in order to help users to develop their knowledge configuration
首先,認知觀可集成情報科學的相關領域,從而為形成統一、有效的情報科學提供體系結構;第二,情報學認知觀把「以人為本」作為它的核心觀念,提出情報系統設計的任務是要設計出增強和放大「人」的存在價值、能力和特長的系統,使提供給用戶的情報系統是一種積極自然,而不是要求他們花力氣去適應的系統;第三,從認知角度來看,情報查尋和利用從根本上說是一項認知行為;第四,認知風格將是未來情報檢索系統的發展趨勢,這樣可以揭示聯機檢索過程中的用戶思維過程,以便有助於用戶知識的發展;第五,知識的進化與認知活動有密切關系,人的知識結構對外來信息的吸附、同化、選擇、建構和實現社會化的過程,其實就是知識的進化;第六, 「知識結構」將成為情報學認知觀研究的重點。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。Chapter four analysis on collect money and investment of astdp this chapter comprehensively and exactly analyses the market quality of independent innovation astdp and the practice abroad in the relative fields, puts forward that independent innovation astdp should collects its construction money mainly from government especially central government theoretically ; but for different kind of actual problems, independent innovation astdp should collect its construction money both from government and itself industry development in reality ; analyses the multiply function of investment on an exact area and on an exact phase, puts forward that marginal consume propensity and proportion of investment into an exact area and so on are the decisive factors, astdp should take a series of measurements to improve its area multiply function and phase multiply function according this theory. chapter five analysis on astdp ' s innovation this chapter puts forward that independent innovation astdp ' s chief innovation fields should consist of agricultural science and agricultural institution, analyses respectively the major innovation contents of agri - science and agri - stitution ; on the basis of analysis on different kind of innovation prompt patterns and the actual condition of astdp, puts forward that independent innovation astdp should selects the pattern of prompted chiefly by government and supply, assisting by market and demand as its chief innovation prompt pattern ; analyses the optimization of independent innovation asdp ' s innovation mechanism ; analyses some relative questions of spreading of independent inno
第五章農業科技示範園區的創新研究本章分析了原發型創新農業科技示範園區創新重點領域,提出了農業科技和農業制度應該是目前原發型創新農業科技示範園區的兩大重點創新領域,並界定了原發型創新農業科技示範園區農業科技創新和農業制度創新的重點內容;在對不同類型創新驅動源進行比較分析的基礎上,結合園區實際,分析提出了原發型創新農業科技示範園區的農業制度創新和農業基礎科技創新應選擇政府驅動、供給推動為主驅動源,而應用農業技術的創新應該選擇市場驅動、需求拉動為主的驅動源;分析了農業科技示範園區創新成果傳遞的有關問題,提出了農業科技示範園區在自己創新成果傳遞過程中科學的角色定位應該是示範、農業科技示範園區必須採取有效措施建立健全科研成果對外傳遞的中介組織體系等觀點:分析了農業發展的三種不同形態,界定生態型農業是農業科技示範園區農業發展的必然選擇,提出了農業科技示範園區生態型農業發展的實施對策。Some other techniques were also introduced including a reasonable space partition scheme to accelerate the algorithm, a proper selection criterion to select candidate points, and an additive topological operation to assure the correctness of topology
第1階段生長點分佈均勻並且密度相對較高的區域,剩下的部分在第2階段生長;還提出了一種空間劃分方法和選擇新點生成三角形的方法,並採用了附加三角形提高拓撲操作的可靠性。The engendering source of traffic volumes and their general influential factors have been presented, and the situation of nowadays highway transportation has been discussed. according to the introduction of traffic distribution theory and classical assignment method, analysis of traffic flow path selection among cities and that of special influential factors for traffic flow on toll highways, initial analysis to the forming mechanism of traffic volume on road sections has been made, and a probability model for path selection has been set up with the maximum - utility theory and disaggregating model. detailed analysis to impedances on road sections and their functions ( especially to three main composing factors of the impedances as cost of time, transport and toll and to the functional relations with traffic loads ) was made, at the same time, the relative cost calculating model was set up on the basis of the state - of - art achievements in both international and national researches
主要研究內容包括:交通量的產生根源及一般影響因素分析和當前公路運輸地位討論;從交通分配理論及經典配流方法著手,通過分析城市間交通流路徑選擇行為和收費公路路段交通量特殊影響因素,初步提出路段交通量的形成機理,並採用效用極大原理和非集結模型理論( disaggregationmodel ) ,建立用戶出行路徑選擇概率模型;對路段阻抗及路阻函數(尤其對行程時間費用、車輛營運費用和道路收費這三個構成路段阻抗的主要因素及其與交通負荷間的函數關系)進行較為詳盡的分析,並以現階段國內外較為先進的研究成果為依據建立相應的成本測算模型,其中,特別提出了兩種確定客貨車輛時間價值的分析方法;離散分析法和時間-費率轉換法,後者是在目前基礎調查、統計數據資料不夠齊全的現實下提出的一種確定道路系統內務車型時間價值的較為實用的新方法;對我國公路收費政策的背景和理論、實踐依據及費率的各種影響因素進行重點分析;從數學的角度證明合理費率的存在性,並以最優化理論為基礎,建立在普通收費公路和擁擠路段交通調控型收費公路兩種模式下合理費率的計算模型等。Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent
本文首先介紹了異步電機的數學模型,在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理,採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹,詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究,包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時,選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量,解決了扇區切換時的矢量突變問題。The chapter structure of this thesis is the following roughly : chapter 1 about capital structure concept and relevant categories it explains and defines main basic conceptions that text involves such as modern enterprise, capital structures, and give out comparatively strict defining of meaning and extension of the conceptions ; chapter 2 the modern enterprise capital structure theory in western country this chapter introduces the main content of western enterprise modern capital structure theory and historical development trend in detail, comment on the corresponding view of main schools ; chapter 3 system analysis on capital structure of our country state - owned enterprise in this chapter we analyse the capital structure of our state - owned enterprise with real examples, accordingly find out matters of the capital structure of soe ; chapter 4 enterprise capital structure and corporative structure this chapter discusses mutual operation of enterprise capital structure and corporative structure ; chapter 5 securities market and the choose of capital structure in the chapter we produce advises on developing securities market in order to optimize the capital structure of soe ; chapter 6 optimal standard of the capital structure of soe this chapter probes into the optimization standard of the capital structure of state - owned enterprise of our country mainly, moreover offers rational projects on the adjustment of capital structure of soe
本文的結構安排主要分為以下幾部分:第一章資本結構概念及其相關范疇,主要解釋定義本論文所涉及到的基本概念如現代企業、資本結構,並對其內涵與外延給以較為嚴格的界定;第二章現代西方企業資本結構理論述評,詳細介紹現代西方企業資本結構理論主要內容及其歷史發展趨勢,並對相應的主要理論觀點給以評述;第三章我國國有企業資本結構形成的制度分析,對我國國有企業資本結構進行實證分析,從而搞清我國國有企業資本結構的現狀及其形成的體制原因;第四章企業資本結構與治理結構,主要從企業資本結構與公司治理結構互動的角度論述企業如何實現合理的資本結構;第五章我國資本市場發展與企業資本結構選擇,主要論述企業外部環境(資本市場)和企業資本結構選擇的相互關系;第六章國有企業資本結構優化標準探析,本章主要探討我國國有企業資本結構的優化標準,進而提出我國國有企業資本結構的調整思路。First, in the theoretical part, by the description of some theories concerning this topic - resource - based view of the firm, this paper illustrates important resource theories ; then, the model of value - create - zone, composed of industry, competitive analysis and the theory of the resource base of the firm, demonstrates the key stages of matching the firm ' s resources with its competitive environment ; finally, by introducing the practical framework that is the triangle of firm strategy, which is applied to evaluate the stock firm ' s competitive edge, the paper states each composed elements one by one in line with the framework
本文首先在原理部分,通過對相關理論觀點的描述引入了本文的主題? ?基於資源的公司觀( resource - basedviewofthefirm ) ,由此闡述了重要的資源理論;接著選擇把產業與競爭分析同公司的資源基礎論聯系起來的「價值創造區」模型,展示了公司的資源與其競爭環境相匹配的關鍵步驟;再引入本文用於評價證券公司競爭優勢的實用框架,即「公司戰略三角形」 ,並針對該框架的每個構成要素進行了論述。We have realized stable triangulation and striping methods in radm modeling system. triangulation method, which is based on delaunay triangle algorithm, has been improved on criterion of selected vertex, and striping used local optimize greedy algorithm
我們在radm系統中以delaunay三角化為基礎,改進了頂點選擇的判據,並針對不同類型的多邊形採用不同的三角化策略,實現了穩定高效的三角化。This thesis contains six parts, the first part is about the introduction which mainly discusses the research background thesis frame mostly innovation and mostly conceptions ; the second one is mainly about the summarization of theory which summarizes the theory of corporation cluster correlated with manufacturing base ; the third one is mainly about the discussion of the mutual action between zhejiang province advanced manufacturing tee and human resource supporting from the academic angle, namely the inducement factor of manufacturing base is human resource, meanwhile the the formation of manufacturing base will drive the convergency of human resource ; the fourth one is mainly about the discussion of mutual action between the advanced manufacturing base and the human resource supporting from positivism angle, which dissertates the state of human resource of the four overseas manufacturing base and the domestic manufacturing base of changjiang river triangle area zhujiang river triangle area and the rounding bohai area ; the fifth one mainly discusses the actuality of current manufacturing base in zhejiang province and the cause, and the conclusion is that the mutual action between the manufacturing base of zhejiang province and human resource hasn " t formed ; the sixth one mainly bring forword the corresponding measure which can promote the mutual action between the advanced manufacturing base of zhejiang and human resource supporting
本文共包括六塊內容,第一塊內容是緒論部分,主要論述了選題背景、論文框架、主要創新點和主要概念的界定;第二塊內容是有關的理論綜述部分,對與製造業基地相關的企業集群理論進行了歸納總結;第三部分是從理論的角度論述了先進製造業基地同人才支撐之間存在著互動關系,即在製造業基地形成以人才為主要的誘導因素,而在製造業基地形成后又會對人才的集聚產生推動作用;第四部分則是從實證角度分析了先進製造業基地同人才支撐之間存在著互動關系,其中分別討論了國外的四大世界製造業基地和國內長三角、珠三角和環渤海灣製造業基地的人才流動狀況;第五部分主要論述了浙江省當前製造業基地存在的一些現狀及其原因,得出了浙江省當前的製造業基地還沒有同人才形成有效的互動關系;第六部分主要是提出了促進先進製造業基地同人才支撐形成互動的相應措施。分享友人