Besides, the experimental group also shows a significant improvement in the spatial perception, spatial orientation, spatial relation and spatial reasoning. According to the logs recorded by Happy Cuber within the three weeks learning, the progress of the students in accuracy and problem solving time is obvious. The stage of Happy Cuber in developing part is harder than the folding part for students, whether in folding or developing part, the cross-shaped net is the highest accuracy and shortest response in all cubic nets.

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After the mathematic model of spatial spectrum analysis was introduced, interharmonic signals can be transformed to spatial signals received by linear sensor array through Euler\'s formula or Hilbert transform. The number of sinusoidal components of the interharmonic parametric model was corresponding to the source number of transformed spatial signals, and the frequencies of sinusoidal components were corresponding to that of transformed spatial signals.

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In this thesis the process of constructing the non-perturbative Hamiltonian theory is de-scribed and is applied to estimate the vacuum condensate. It contains the following contents:At the very beginning, by using the path integral method and eliminating the gluon freedom, aGCM action 〓 of current quarks including lower order current-current coupling was derivedfrom the QCD Lagrangian and the effective Hamiltonian operator that could hardly be doneby the normal methods was derived. After doing this, the broken vacuum is introduced whichincludes quark-antiquark condensate through the generalized Bogoliubov-Valatin transformation,the effective Hamiltonian of constituent quark was derived. The detailed formulas containingthe spatial current-current coupling term for the effective Hamiltonian and gap equations wasworked out by parameterizing the correlation kernel as a quadratic potential. And then, the gapequation was solved and the quark-antiquark condensate of vacuum was studied both in the casesof instantaneous interaction and retarded interaction. In the end, the effective Hamiltionian withtwo-body quark-quark interaction was derived with one-body approximation, and with the helpof the functional integral method the coupling non-linear dynamic equations for systems withnuclear matter was derived. Finally, these equations were solved by selfconsistent method andthe effect of nuclear matter on vacuum condensate was studied. The spatial current-current coupling term is too difficult to handle, hence the correlationkernel is assumed to be not important and usually omitted in the pure vacuum condensate, andthe instantaneous interaction generally is adopted. Retaining the spatial current-current termand partial retardation effect, the quark pairs condensate in pure vacuum was studied, and theeffect of quark mass was also studied. At present, little study is focused in the case with nuclearmatter and spatial current-current term also omitted. Under the approximation with partialspatial current-current term, the effect of nuclear matter on vacuum condensate was studied.

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A series of spatial syntactic variables is discussed in the paper. Taking Wuhan's traffic axial map as a case, spatial syntactic variables of multi-scale spatial extent based on GIS are analyzed. A conclusion is that the accessibility is the key factor that weighs an urban spatial morphology, and the integration degree is a direct variable describing accessibility.

討論了空間句法的系列變量，并以武漢市為例18禁美女裸露网站入口，提取武漢市的交通網(wǎng)絡(luò)軸線地圖狼友干在线观看，在GIS環(huán)境下討論了不同尺度空間范圍內(nèi)的空間句法變量，得出空間可達(dá)性是評(píng)價(jià)城市空間形態(tài)的重要因子又粗又长视频，而集成度是描述空間可達(dá)性的直接變量国产一级精品A片免费观看。

After analyzing characteristics of urban spatial data, this paper partly implements the integration of spatial data of multi sources and organization and management of sea-large spatial data. Finally, the spatial data managing system makes a uniform management, maintenance and updating on such data as digital linear graphic, digital elevation map, digital orthoimage, digital raster data, reference points and metadata.

本文針對(duì)城市空間數(shù)據(jù)特征分析，部分實(shí)現(xiàn)了多源空間數(shù)據(jù)的集成和海量空間數(shù)據(jù)的組織與管理无码一区网站，實(shí)現(xiàn)了多庫(kù)一體化分布式城市空間數(shù)據(jù)管理系統(tǒng)在线麻豆视频，將數(shù)字矢量線劃數(shù)據(jù)、數(shù)字正射影像數(shù)據(jù)精品激情、數(shù)字高程模型數(shù)據(jù)国产91大屁股熟女、數(shù)字柵格數(shù)據(jù)、控制點(diǎn)數(shù)據(jù)以及元數(shù)據(jù)的進(jìn)行統(tǒng)一的管理小视频色网址、維護(hù)和更新久视频网无码性一区。

According to the cognitive linguistics, spatial metaphor is an image schema metaphor, which occurs when a spatial structure mapping onto a non-spatial concept by giving the concept a spatial orientation.

認(rèn)知語(yǔ)言學(xué)認(rèn)為，空間隱喻是一種意象圖式隱喻人人人操人人爽，它將作為源域的空間概念投射到抽象的目標(biāo)域淫荡AV，是給一個(gè)概念空間意義。

Cosmic space-energy and cosmic gravitation pair is such coincidence, the spatial measurement of stable relative time-space cosmic energy is the 1/3 spatial measurement of cosmic time-space, the spatial curvature of stable relative time-space cosmic energy is the 2/3 spatial measurement of cosmic time-space.

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Based on the development, classification, comparation of classific algorithms of spatial indices, the paper designs two efficient spatial indices including the improved quadtree and R+tree, applies them into spatial query processing, and realizes the spatial select query algorithm based the improved quadtree and R+tree, and nearest and k-nearest neighbour query based R tree.

在對(duì)空間索引技術(shù)的發(fā)展免费人成视频网站在、分類和典型算法比較的討論基礎(chǔ)之上草草影院www色欧美极品，本文設(shè)計(jì)并實(shí)現(xiàn)了兩個(gè)高效的空間索引—改進(jìn)的四叉樹(shù)索引和R+樹(shù)索引，并將這兩個(gè)索引應(yīng)用到空間查詢處理中AAAAAAAAA三级网站，分別實(shí)現(xiàn)了基于改進(jìn)四叉樹(shù)和基于R+樹(shù)的空間選擇查詢算法以及基于R樹(shù)的最臨近查詢和K最臨近查詢算法日韩欧美视频在线看。

Study on the driving forces of land use/cover temporal-spatial change. On the basis of the systematical study on natural and social-ecomic factors including climate, population, technology and affluence status etc. during the past 50 years in this area, the multivariate statistics simulation models of LUCC were developed for two periods of 1950's-1980's and 1986-2000 respectively. Then, the Thiesson polygon method was used to the spatial allocation of soci-economic factors, thereby the spatial relationship between land use degree change and socieconomic factor variation was detected within GIS. Based on the analysis of the integrative characters in different geographical divisions, the electivity index was employed to describe the possible impacts of the natural landscape structure on spatial differentiation of land use transition. At last, correlation analysis between major roads and the distribution of land use change was made.

分析近50年氣候資料和人文因子在不同年代的變化特點(diǎn)，系統(tǒng)地研究了氣溫和降水等自然因子和人口、農(nóng)牧業(yè)發(fā)展久久偷拍综合、經(jīng)濟(jì)狀況等人文因子對(duì)區(qū)域土地利用變化的影響亚洲图片澳洲图片在线看；從時(shí)間序列的角度分析了50年代至80年代初和80年代中期至2000年兩個(gè)時(shí)段土地利用／土地覆被變化的驅(qū)動(dòng)因子，在相關(guān)分析的基礎(chǔ)上www.rrr755.com，分時(shí)段建立了區(qū)域土地利用／覆被變化的自然-人文影響統(tǒng)計(jì)診斷模型扒开美女双腿桶出白浆；針對(duì)不同經(jīng)濟(jì)類型區(qū)選擇典型縣，分析近15年土地利用變化外在人文驅(qū)動(dòng)力的區(qū)域相似性和差異性五级黄色毛片；嘗試以THIESSEN多邊形方法進(jìn)行社會(huì)經(jīng)濟(jì)統(tǒng)計(jì)數(shù)據(jù)的空間化處理韩日妇女打一炮，探討了土地利用程度變化與人文因素變化的空間相關(guān)關(guān)系；以優(yōu)先指數(shù)模型和土地利用類型轉(zhuǎn)化率與距交通干線距離的相關(guān)模型分析了景觀自然與人文結(jié)構(gòu)對(duì)土地利用空間轉(zhuǎn)化過(guò)程的影響美女a片网站。

Thirdly, in order to manage these data better, the paper advances the organization methods of data of commixed Database of Geo-spatial Framework model by integrating some advanced database technologies such as RDBMS and the Spatial Database Engine, namely on the basis of database and the data of Geo-spatial Framework divided in a preceding part of this paper, it describes layer-delaminating, block-dividing, slice-connecting, map-dividing and BLOB etc. to organize spatial data, including DLG, DOM, DEM, and thematic data, taking example for the data of urban planning. At the same time it also realizes integrated management of these data.

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