格網因子 的英文怎麼說
中文拼音 [géwǎngyīnzi]
格網因子
英文
grid factor-
Its biquadratic finite element approximation is considered and under the appropriately graded meshes, quasi - optimal order error estimates in the - weighted h ^ 1 - norm, up to a logarithmic factor in the singular perturbation parameter, are proved
然後,考慮此方程在分層網格剖分上的雙二次有限元逼近,在-加權h ^ 1 -模意義下得到了至多相差一個關于攝動參數對數因子的擬最優階收斂的誤差估計。A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算,多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序,驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較,可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率,縮短了計算時間,因此為后續計算打下了良好的基礎The higher intelligences, such as the elohim creational forces, use this blueprint to project the elements of life into creations such as the planet earth through a grid system or matrix
更高級的智慧,例如耶洛因(神)的創造力量,使用這個藍圖通過網格系統或矩陣能量把生命元素投射到創造物裏面去,比如行星地球就是這樣子的。Most genealogy software programs can output information about persons and their relationships in gedcom format, so it can be shared with other genealogists by e - mail and internet forums or converted into a family web site using online genealogical tools such as ged2html, phpgedview, and phpmyfamily
多數譜學軟體節目可能輸出信息人和他們的關系gedcom格式,因此它可能被分享與其它系譜學家由電子郵件並且網際網路論壇或轉換入一個家庭網站使用網上系統工具譬如ged2html , phpgedview ,並且phpmyfamily 。Rather than using costly and restrictive electronic data interchange formats on value - added networks, companies can set up extranets for an open dialogue between customers and suppliers over the net
各公司可以在因特網上為客戶和供應商之間建起用於開放對話的內擴網,而不是在增值網上使用既費錢又受限制的電子數據交換格式。Non - linear dynamical systems and chaotic phenomena. random processes and diffusion. ising model and lattice gas. quantum systems and electronic structures. percolation, fractal and self - similarity. neural network and genetic algorithm
非線性動力系統與混沌現象、隨機過程和擴散現象、易幸模型與格子氣體的統計模擬、量子系統與電子結構、展透、碎形與自我類似、類神經網路與基因演演算法。To discuss the natural vulnerability of different coasts to future sea - level rise, the paper selects the coasts along the pearl river mouth as the studied area. after analyzing the impacting factors of natural vulnerability along the pearl river mouth, the paper divides the coastline of approximately 412km into 25 15 - minute gird cells. for assessment purposes, the six variables including geography, relative sea - level change, average tide range, regional slope, shoreline erosion or accretion rates and tropic cyclone impacting frequency are selected as assessed variables
為了探討不同海岸帶對未來海平面上升的自然脆弱性,本文以珠江口沿岸作為研究個案,在分析珠江口沿岸自然脆弱性的影響因子的基礎上,把珠江口沿岸412km岸線劃分為25個15 15的網格單元,選取了地質、海平面上升率、平均潮差、區域海岸坡度、海岸侵蝕/堆積率、熱帶氣旋影響頻率6個評價指標,應用cvi指數評價公式對珠江口地區進行海岸脆弱性評價,並建立海岸脆弱性評價數據庫,繪制了珠江口沿岸1 : 2 , 000 , 000的數字化cvi圖。This paper adopts multi - grid and the optimal selection of the relaxation gene, so it quickens the convergent speed of iteration
方程組的求解過程中,採用了多重網格法的思想和優選法試驗鬆弛因子法,來加快迭代的收斂速度。A discretization equation is derived by using a finite volume method in three - dimensional cylindrical polar coordinate system. algebraic equations are solved by iteration with a line - by - line method that is a combination of tdma in axial and radial directions, ctdma in tangential direction and adi method in three directions. the pressure and velocity coupling are solved with the simple algorithm
在三維圓柱坐標下,利用有限體積法推導離散方程;在軸向與徑向用三對角矩陣法( tdma ) ,在周向採用循環三對角矩陣法( ctdma ) ,採用交替方向亞鬆弛疊代法( adi )求解方程;推導同位網格下的壓力修正方程,用simple演算法處理速度與壓力的耦合;為加速收斂,採用適當的鬆弛因子。In this paper, chroma dc coefficients are selected as the carrier data because chroma dc coefficients are robust. also, alterable steps are used to select one part of the coefficients, so the watermark is imperceptible ; before watermark embedding, the watermark is divided into many parts, every part is individually embedded into one gop of the video, even if a gop is destroyed, the watermark can be extracted correctly, this methods promotes the robustness of the watermark ; in addition, in order to promote the security of the watermark, the user ' s id and password are used to generate chaos sequence by the chaos system which is created in this paper, later, watermark is mixed by the chaos sequence. also, the embedding position of the watermark bit is modified by one chaos sequence, so, unauthorized person can not extract or remove the watermark, since the embedding position is unknown
本文認為,色度dc系數是魯棒性非常好的參數,因而選擇色度dc系數作為水印信息載體,同時,採用可變的步長選擇部分系數,保證了水印的隱形性;在嵌入水印時,本文採用水印信息「網格劃分」 、各子塊獨立嵌入視頻的方案,由於水印信息子塊是相對獨立的嵌入視頻中的每一相對獨立的圖組當中,即使某一圖組收到一定破壞,也能夠恢復水印信息,使水印的健壯性得到提高;此外,為了提高水印信息的安全性,在嵌入水印信息時,根據用戶輸入的id號和密碼,利用本文構造的混沌系統產生的混沌序列對水印信息進行變換,同時,對每一水印信息比特的嵌入位置也採用了偽隨機序列進行調整,這樣,未授權用戶不能提取水印信息,也難以擦除其中的水印信息,因為嵌入的位置是未知的。The preliminary results obtained by solving n - s equations show - viscous effects clearly. in addition, based on euler equations the effects of point distribution, cloud structure and weight selection on computational results have been analyzed, which results in having a convenient technique of point distribution in the computational domain and a rule of point selection forming an appropriate. clouds of points used in the computation
此外,論文結合無粘euler方程的求解,對無網格演算法涉及的計算域內點的分佈、當地點雲結構及空間導數逼近的加權因子等問題對計算結果的影響進行了分析和比較,完善了方便的區域離散布點方法,明確了點雲生成選點準則。This article analyzes the factors that influence the periodical acquisition so as to provide references for other libraries. the factors include main collection, funds, periodical price, core journals and their impact factors, print and electronic journals, availability rate, cooperation acquisition, original article access, surrogates and so on
分析和論述了影響期刊采購的因素,這些因素包括采購經費、期刊價格、核心期刊及期刊影響因子、印刷版和電子版、期刊利用率、聯合採購、采購代理商、網路免費資源等。The spd model is made by the ins titute of geographical sciences and natural resources research of chinese academy of sciences. it combines social economic factors, such as city and transportation foundational facilities, with nature factors, for example the digital elevation model ( dem ) and net primary productivity ( npp ) of plants to simulate the spatial distribution of population density of china by the advanced grid generation technology
中國模擬人口密度模型是由中國科學院地理科學與資源研究所首先提出的,這個模型試圖利用先進的格網生成技術,將城市、交通基礎設施等社會經濟因子和陸地數字高程( dem ) 、陸地植被凈第一性生產力( npp )等自然因子相結合,通過模型的反演,模擬某一時期的中國人口密度空間分佈狀況。Beginning with the problem of interlaced region between farming and herding, the boundary line of the interlaced region is calculated based on grid with 10km grid ; then the relation among land use of the region, soil erosion and erosion region is analyzed ; based on factor classification, no useful factors were neglected and stepwise regression method was used to analysis the drive of land use change ; fractal method was applied to analysis the degradation of land - use and relation among land use, soil erosion and wind - water erosion zone ; environmental variances are introduced to establish characteristic index of land use change and analysis the effect of land use change on soil erosion
從農牧交錯帶的實質問題入手,基於10公里網格,計算農牧交錯帶的界限;在此基礎上分析農牧交錯帶的土地利用、土壤侵蝕及與風水侵蝕帶的關系;在因子分層的基礎上,剔除不需要因素,採用逐步回歸的方法,進行土地利用變化驅動力分析;運用分形方法分析土地利用的退化,並分析土地利用與土壤侵蝕的關系,引入環境變量,建立土地利用變化特徵指數,分析土地利用變化對土壤侵蝕的影響。This paper summarize overviews of domestic scholars in relevant research, on the basis of regional economics theories, from space structure perspective, apply factor analysis methods, calculate the main indicators that reflect interregional disparities of jiangsu province, draw the current space structures chart, analysis the major problems of jiangsu province space structures, give some policies that optimize jiangsu province space structure, raise “ one circle and five axis ” network - style pattern strategy. thus enabling sunan continued rapid development, accelerate suzhong, particularly of subei, form a harmonious development situation, achieve the purpose of the harmonious development of regional economy
本文在綜述國內學者相關研究成果的基礎上,從空間結構的角度出發,利用空間結構與區域經濟協調發展的關系,藉助于因子分析方法,計算了反映江蘇省區域間差距的主要指標,繪出了江蘇省的空間結構圖,分析了江蘇省空間結構存在的主要問題,給出了江蘇省空間結構優化的政策建議,提出江蘇省「一圈五軸」的網路式空間格局,從而使江蘇省在繼續保持蘇南地區快速發展的同時,加快蘇中特別是蘇北地區的發展,形成協調發展的局面,達到區域經濟協調發展的目的。E - commerce, website construction, and online marketing are strategic means for all chinese corporations to succeed in a fiercely competitive market. ce s key clients, the smes, are eager to find a fair, effective, innovative online marketing platform to connect them to the world. google is a world - class company, who leads in technology and innovation
面對激烈的市場競爭格局,電子商務、網站建設、網路營銷已經成為中國企業勢不可擋的發展之路,因此中國中小企業現在急需一個公正、有效、具創新能力的網路營銷服務商將他們推向世界市場。 google是一家世界級、技術和創新能力全球領先的企業。In this part, we apply the classification of tasks and add a load balance factor. we submit tasks to grid resource relatively idle and make the task dispatcher and load balancing effectively
同時通過增加負載平衡因子和應用任務分類等方法,將用戶提交的任務更加合理的映射到相對空閑的網格資源上,有效地實現了任務的合理調度和負載均衡。( 4 ) this system includes bp neural network forecasting model based on fuzzy clustering and rough principal factor analysis model, except for some typical mathematics models, for instance, gray - markov chain forecasting model, bp neural network model, avail theory model method, etc. they were used to resolve some actual problem, such as forecasting machine amount, agricultural machine power and prices
選用多種數學方法建立了模型庫,引用具有代表意義的灰色?馬爾柯夫鏈聯合預測方法、人工神經網路預測方法和效用理論決策方法建模,提出基於模糊聚類的人工神經網路預測方法和粗糙集因子分析數學模型,並分別對未來農機需求、農機總動力、農機價格等問題進行了探討和應用分析。The integrated information units could be identified by a variety of methods according to different data types and issues including overlay - operation for vector gis, cell - partition for raster gis, and for some cases, synthetical consideration based on special treatment or expert - knowledge
針對不同的相關因子以及數據類型,綜合信息元可以採用數據疊加法、綜合法和網格劃分法等進行構建。Response of grass productivity potential to climate changing in south of guanshan
基於小網格的北京山區植物氣候生產力及其限制因子分析分享友人