降序索引 的英文怎麼說
中文拼音 [jiàngxùsuǒyǐn]
降序索引
英文
descending index-
This is the reason why reversing the index when its leading column is fed by a sequence reduces buffer contention, removes the hot block problem and by doing so, reduces the potential for buffer busy waits on a multi - user system
這正是為何當前導（ /起始）列由序列生成時索引的逆序處理可以降低緩存爭用，解決熱塊問題，並且這樣做可以在一個多用戶系統中減少緩存忙等待的機會。Nucleic acid sequences of azoreduclase were searched and blasted in genbank. a pair of primers based on the conserved regions were designed. a specific fragment was amplified by pcr from the plasmid of rhodopsedomonas palustris and sequenced. the sequence contained a complete 471bp orf ( open reading frame )
脫色實驗證明沼澤紅假單胞菌（ rhodopsedomonaspalustris ）對偶氮染料有較強的降解能力，我們通過genbank搜索，對所獲得的所有偶氮還原酶基因在ncbi進行比對並設計引物，從沼澤紅假單胞菌質粒中擴增獲得了一條含471bp完整開放閱讀框架的序列。Determines the ascending or descending sort direction for the particular index column
確定特定索引列的升序或降序排序方向。In this paper, i will present some algorithms of polyhedral visual hull reconstruction : ( 1 ) polyhedral v isual h ull generation a igorithm b ased one dge - pool - searching, which constrains the 3 - d intersections into the 2 - d planes intersection via the epipolar theory to reduce the complexity a nd c an r educe t he t imes f or c ones t o b e p rejected o nto t he i mage p lanes, i n which we induced the index list to every points on the surface of object, and connected the related points to get sub polygons on surface and in turn get the mesh model, we replace triangulation process of disordered points cloud by edge - pool searching. ; ( 2 ) reconstruction based on degenerated - polygon - intersection, which have the following improvements on traditional bull intersection : using degenerated polygon to orga nize intersected area on cone face, which may be discontinuous ; a fast intersection algorithm of polygons on the cone face based on degenerated polygons, which is consistent between the continuous polygons and the discontinuous ones. the intersection of degenerated polygons is similar to the convergence of two ordered lists, which is comparably simple to the bull operation ; ( 3 ) reconstruction algorithm based on ray - tracing, in which all the rays that run through the vertex on silhouette of object will intersect with all the cones correspondent to other silhouette, and we have to calculate the intersection of all such line segments, the endpoints of which are considered to lie on the surface of object and we will get the point cloud on the surface of object
同時利用共極線原理把三維計算投影到二維平面以降低求交計算的復雜度，該演算法可以減少光錐向圖像平面投影計算的次數，以邊池搜索取代散亂點集上進行的三角剖分； （ 2 ）基於退化多邊形求交的多面體可見殼模型重構，系統引入退化多邊形的概念，把錐體平面的交集中不連通的部分用一個退化多邊形來表示，並引入了新的基於退化多邊形的求交演算法，與傳統多面體可見殼重構相比，該演算法有以下幾點創新：在圖像平面以退化多邊形組織投影錐體和物體輪廓的交集，把任意錐面與物體輪廓的交集歸一到一個退化多邊形；基於退化多邊形的二維平面上多邊形快速相交演算法，該演算法在一定程度上就是兩個有序鏈表的合併，大大簡化了先前的布爾求交計算； （ 3 ）基於光線跟蹤的演算法，該演算法中所有通過輪廓頂點的光線和對應其它圖像輪廓的光錐進行求交計算，最後得到每次求交計算得到線段的交集，該線段的頂點就認為是物體表面點，從而得到物體表面的點雲。Property rebuilds the index for the data, adding overhead to your application and decreasing performance
設置rowfilter屬性會重新生成數據的索引，從而增加應用程序的系統開銷並降低性能。分享友人