弦定義 的英文怎麼說
中文拼音 [xiándìngyì]
弦定義
英文
chord definition-
In this paper, we propose the chord - distribution - based image description, and research the image retrieval algorithm based on this description. the main work of the paper consists of two part that are the feature description about image and the algorithm of image retrieval. in the first part, we propose the definition of region - chord, the presentation of chord - distribution, and describle image after analyzing the properties of chord - distribution. in the second part, after partitioning image and counting region - chord - distribution, we analyse the forground and background of image to each region and propose the criterion of the similarity of images
論文的主要工作由圖象特徵描述和圖象檢索演算法兩部分組成。在圖象特徵描述部分，我們給出了區域弦的定義和區域弦分佈的表示，分析了弦分佈的性質，並在此基礎上進行了圖象特徵描述。在圖象檢索演算法部分，本文首先作了圖象區域劃分、區域弦分佈的計算；其次對區域作了前景、背景分析並給出了圖象間的相似性度量。The brown - york quasilocal energies of some black holes in string theory are calculated and martinez ' s conjecture, originally proposed for the kerr black hole in general relativity, is explored in string theory
本文用brown - york準定域能定義對弦理論中的一些黑洞的能量進行了計算，並探討了源於廣義相對論中kerr黑洞的martinez猜測在弦理論中的適用性。Trial - use standard definitions for the measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, or unbalanced conditions
試驗用標準定義.在正弦曲線，非正弦曲線，平衡和非平衡條件下電力數量測量的試驗用標準定義A method that combines category - based and keyword - based concepts for a better information retrieval system is introduced. to improve document clustering, a document similarity measure based on cosine vector and keywords frequency in documents is proposed, but also with an input ontology. the ontology is domain specific and includes a list of keywords organized by degree of importance to the categories of the ontology, and by means of semantic knowledge, the ontology can improve the effects of document similarity measure and feedback of information retrieval systems. two approaches to evaluating the performance of this similarity measure and the comparison with standard cosine vector similarity measure are also described
介紹了一種綜合各層級分類類目和對應關鍵詞來構造概念體系並用於改進信息檢索系統效果的方法.為了改進文本聚類的效果，提出了將領域知識本體和文本關鍵詞詞頻相結合的基於餘弦向量的文本相似性測度方法.該本體面向特定領域，將關鍵詞以不同權值對應于各分類類目，通過其語義知識來改進文本相似性測度以及信息檢索系統的效果.進一步給出了對基於本體的相似性測度方法進行效果評價的2種策略以及該方法與經典餘弦向量測度方法的比較結果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。3 zhang c, cheng f, miura k. a method for determing knots in parametric curve interpolation. cagd, 1998, 15 : 399 - 416. 4 fritsch f n, carlson r e. monotone piecewise cubic interpolation
文章以四組有代表性的數據為實例，通過定義節點用樣條函數方法構造三次參數樣條曲線，將新方法與向心參數化法修整弦長參數化法和二次精度方法進行了比較。Wide cosine theorem of k dimension simplex
維單形上的廣義餘弦定理This paper introduces ieee trial - use standard 1459 - 2000 and compares the old and new definitions of the apparent power s. it also gives the definitions of electric power quantities under sinusoidal, nonsinusoidal, balanced, or unbalanced condition in detail
本文介紹和分析了ieeestd1459 ? 2000暫行使用標準，比較了關于視在功率s的新舊定義的不同。介紹正弦、非正弦單相系統的電量的定義，詳細分析了正弦、非正弦和對稱、不對稱的三相系統的功率的定義和計算。The knots for constructing the quadric curve are determined by minimizing the internal strain energy, which can be regarded as a function of the angle. the function of the angle is expanded as a taylor series with two terms, then the two knot intervals between the three consecutive points are defined by linear expression
對每一個數據點，用相鄰的三個數據點構造一條二次曲線，通過極小化二次曲線的應變能來定義三個數據點的節點，這些節點可被看作是三個數據點相鄰兩條弦間夾角的函數。In general, however, a chord may be described as the simultaneous sounding of any number of notes more than one
和弦通常被定義為一個音以上的任何數量的音同時發聲。The arithmetic formulas for sine wave, linear frequency modulation signal, v - style frequency modulation signal, white noise signal, reverberation signal and echo signal are given by their definition
根據信號類型的定義，給出了正弦信號、線性調頻信號、 v型調頻信號、白噪聲、混響和回波信號的合成公式。Based on the minimum potential energy principal, the influences of three loads, which are concentrated force, trapezoidal load and sinusoid load, over shear lag of cantilever single - box - single - cell box girder are deducted and discussed, and a conclusion is reached, which has some instructive significance for designer to determine the sectional dimension and reinforcing bars ; the bending normal stress changes greatly as considering the shear lag effect
以最小勢能原理為基礎，推導並討論了3種形式的荷載：集中力、梯形荷載、正弦形荷載對懸臂單箱單室箱形梁剪力滯的影響，得出考慮剪力滯效應后彎曲法向應力有較大變化的結論，對設計人員確定截面尺寸、截面配筋具有一定的指導意義。分享友人