有很多曲線和 的英文怎麼說
中文拼音 [yǒuhěnduōqūxiànhé]
有很多曲線和
英文
ornate carving with lots of curves and convolutions- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 很 : 副詞(表示程度相當高) very; quite; awfully
- 曲 : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 和 : 和動詞(在粉狀物中加液體攪拌或揉弄使有黏性) mix (powder) with water, etc. : 和點兒灰泥 prepare some plaster
- 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
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Numerous preprogrammed and user - defined time current curves for sensing phase or ground faults. - three independent recloser interval times
對于相間和接地故障,有很多條預定義的或者用戶可定義的時間電流曲線可供選擇。The algorithm has many advantages such as the input format and output format being uniformed, high efficient, wide application, etc. it has abroad market values in many domains, such as the weather character demonstration, computing and the demonstration of anomalous graphics, etc. we know that curves can be approached by mini line - segments, so the boolean operations between almost all regions can be implemented by this algorithm
本演算法具有輸入、輸出數據格式統一、效率高、應用面廣等優點。在實現天氣氣象圖的演示、各種不規則圖形的顯示和計算等領域具有很廣闊的市場前景。由於曲線邊界可以由小線段組成的多邊形來逼近,所以通過本演算法,我們還可以實現任何邊界區域間的布爾操作。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。Through a large amount of research, exploration, analysis and comparison, iterative classification method of solving the equation, the statistical method of dividing the period of calculating time and its key technology are put forward. the difficulties in computer simulation of multi - curve fitting are solved well
經過大量的研究、探索、分析、比較,提出了方程的迭代分類法和推流時段劃分的統計方法及其關鍵技術,很好地解決了計算機模擬多曲線的難點,具有一定的創新和突破。Another algorithm is based on pixels : sample many points along the curve, round them to the nearest integer and set each pixel the computed point falls in. although this algorithm uses integer arithmetic, it provides the smooth curve possible at the expense of computation time as many points have to be computed to ensure that no gaps are created along the curve. furthermore these two algorithms we mentioned above is appropriate for low degree parametric curves, for high degree parametric curves, we usually approach them by using low degree rational parametric curves, the generating curve ' s fairness property is not very good
我們知道當節點矢量的兩端節點均為k重節點且無內節點時, b樣條基函數退化為bemstein多項式,因此該生成演算法還可推廣到b能ier曲線中,具有廣泛的應用價值、同樣地,在cad和cagd中,有理b樣條曲線,特別是非均勻有理b樣條曲線( nurbs )已經成為曲線曲面設計中最廣為流行的技術,然而對這些曲線目前也尚無很好的曲線生成演算法,因此有理b樣條曲線的生成演算法無疑有著更重要的意義Ir - ta - ti metal oxide coated titanium anodes of variable composition were prepared by thermal decomposition. their micro morphorogies and electrochemical properties were characterized by scanning electron microscope, open circuit potential, cyclic voltammetry, consumption rate measurements and accelerated life test. the sem results indicated that all coatings were of a porous and cracked - mud microstructure influenced greatly by the composition of coatings. the electrochemical measurements showed that the ir - ta - ti ternary oxide - coated anodes exhibited excellent electrochemical activity and electrochemical stability in both acidic media and seawater which were affected by the composition and microstructure of the coatings. owing to good corrosion resistance and low consumption rate in seawater, metal oxde coated anodes belong to insoluble material, and can be potentially applid in impressed current cathodic protection systems as an anode
採用熱分解方法在鈦基體上制備銥鉭鈦金屬氧化物陽極,用掃描電鏡對陽極塗層顯微形貌進行分析,通過強化電解壽命試驗、開路電位測試、消耗率試驗及循環伏安曲線研究了金屬氧化物陽極的電化學性能. sem分析結果表明銥鉭鈦金屬氧化物陽極塗層呈現多孔多裂紋形貌結構.隨陽極塗層組成不同,塗層顯微形貌表現出很大差異,這種差異直接影響陽極電化學性能.電化學性能試驗結果表明銥鉭鈦金屬氧化物陽極在酸性介質和海水中具有良好的電化學穩定性和電化學活性.此外,銥鉭鈦金屬氧化物陽極在海水中的消耗率很低,屬于不溶性的陽極材料,作為外加電流陰極保護用輔助陽極具有廣泛的應用前景Greatly different from previous works, the matching circuits and dc bias networks are bent many times, for minimizing the lna
與以往同類工作有很大不同,為了實現lna小型化的目的,對匹配電路和直流偏置網路採用多次曲折線的形式。Paper [ 76 ] provides a integer algorithm for rasterizing free curves, we need change the curve form to implicit function form, then use curve ' s positive - negative property to draw, but we ca n ' t use this algorithm when curve ' s degree is higher than 3 and this algorithm ca n ' t avoid using multiplication ; paper [ 77 ] provides a new generating algorithm, this algorithm can draw bezier very well, but for b - spline curve, we need use convert them into bernstein base form. because this process spends a lot of time, this algorithm has not a good speed and effect for rendering rational b - spline curve
現在經常採用的演算法也是基於幾何的演算法(即線式生成演算法)和基於像素的演算法(點式生成演算法) ;文獻78 ]提供了一種有理參數曲線的快速逐點生成演算法,該演算法對有理b吮ier曲線的繪制,能起到很好的作用,但是對于有理b樣條曲線,必須先通過多項式的代數基與bemstein基間的變換矩陣,把原式用bemstein基表示,這一過程由於計算量大,降低了曲線生成的速度和效率After this work, the paper discusses the property of uniform curve. when the multiplies of end knots equal the order of the basis, the inner knots are also the simple knots, the rational b - splines are translated to the rational b zier - like basis. studies show that these basis have the similar properties with the b zier basis, and satisfied the new recurrence relation
其次,在低階情況,研究了形狀參數對曲線的影響,並且討論了均勻情況下曲線獨有的特性,當k階有理b樣條端節點重復度達到k時,而內節點重復度為零時,這種有理b樣條轉化為一種有理b zier基函數,它們的很多性質和b zier基有驚人的相同點,滿足新的遞推關系Grpcs provides a unified framework for parametric curve and surface. it does not only inherit a lot of good properties from nurbs such as locality, convex hull, affine and perspective invariance etc., but also has the ability to directly represent trimmed surfaces and closed surfaces
廣義有理參數曲線曲面在表示形式和計算方法上具有高度的統一性,它不僅繼承了nurbs的很多優良性質,比如局部控制性、凸包性、仿射和投影不變性等,而且可以直接表示裁剪曲面和閉合的曲線曲面。Another approach of this thesis is to demonstrate that the lowest degree is 5 in order to make the b - spline patches hold the property of local adjustment if no specific 111 abstract restriction to the partition. most existed surfaces reconstruction methods adopt bezier tool and demand particular partition. the local scheme addressed in this thesis does n ' t restrict the partitions of fitted surfaces, and the fitting tools is biquartic b - spline surfaces with double interior knots and biquintic b - spline surface with single interior knots
本文論述的「局部格式」調整方法不對剖分區域施加任何限制,主要採用內部具有二重節點的雙四次b樣條曲面和單節點的雙五次b樣條曲面做為擬合工具,給出了「局部」調整的方法,該方法能很好的保持拼接曲面的幾何特徵,克服了許多已有的重構方法僅採用簡單共線法處理幾何光滑性的弊端。Another proposal to explain the lack of women professors of maths and science is that even if there is little or no difference in average ability, there might be differences in the variation around this average, with more men found in the tails of the distribution curve and fewer in the middle
對于數學和自然科學方面缺乏女性教授的另一個解釋是,盡管在平均水平是兩性沒有差別,但在平均值附近的變異卻有差別,男性更多地分別在曲線的兩端,而很少在中間。Finally, by comparing with the predicting results of 5 engineering examples, the prediction results of compertz curve equation are proved to be better and more stability than other methods, and the prediction method of multi - model is feasible
通過對5個工程實例的預測比較,證明龔帕斯曲線方程有很好的預測效果,有較好的穩定性,可用於工程實踐;同時也說明多模型的預測方法和判別標準是符合實際的。分享友人