temporal change 中文意思是什麼
temporal change
解釋
時間變化-
Study on the temporal change of radon concentration
空氣中氡濃度時間變化規律探討 -
Takes the case of beijing city, this dissertation mainly studies the spatial distribution characteristics and temporal change trend of urban land price in different uses, and explores the spatial structure of land price and the mechanism of its formation, in order to supply some references for city function zoning, optimizing city land use structure and regulating city land market
本文以北京市為例，主要研究不同用途城市地價的空間分佈特徵和時間變化趨勢，揭示城市地價空間結構及其形成機制，為確定城市功能分區、優化城市用地結構和宏觀調控城市土地市場提供依據。 -
For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics
利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0 -
Gis ; groundwater level ; spatio - temporal change ; the hebei plain
Gis地下水位時空變化河北平原 -
Spatio - temporal databases manage spatial objects that change positions and / or extents over time, spatio - temporal index method is one of the key technologies in spatio - temporal database management system
時空數據庫是存儲、管理隨時間變化，其空間位置和/或范圍也發生變化的時空對象的數據庫系統，時空索引技術是時空數據庫管理系統的關鍵技術之一。 -
( 2 ) based on the review and analysis of typical object detection methods, especially the temporal difference, a moving objects detection algorithm based on three frame difference is proposed. this algorithm employs many new technologies, such as adaptive frame interval, half - pixel global motion estimation and compensation, adaptive change detection and object repair, therefore it is very practical
2 .在總結常用運動目標檢測方法，並詳細討論時間差分法的基礎上，針對實地拍攝的紅外圖像序列，提出了一種基於三幀差分的運動目標檢測演算法，該演算法採用自適應幀間隔、半象素全局運動估計與補償、自適應變化區域檢測、抗噪聲形態學處理和目標修復等一系列新技術，具有很強的實用性。 -
What matters is the fundamental change that takes place in the temporal framework of form of human memory
這里重要的是記憶形式的時間結構發生了根本的變化。 -
Based on the available high - quality surface - meteorlogical observation data from 22 stations in trim basin from 1961 to 2000, investigation has been conducted for the temporal and spatial distribution characteristics, especially for interdecadal change and long - term trend of sandstorm in trim basin in recent 40 years
摘要本文利用1961 - 2000年塔里木盆地22個氣象站的氣象實測資料，分析了近40年塔里木盆地沙塵暴天氣的時空分佈特徵。 -
Based on 1986 tm and 2000 etm data, the land use and landscape pattern change in the source region of the yangtze river was studied with geographical information system ( gis ) and the analytic method of landscape ecological spatial patterns in both spatial and temporal aspects in this paper
摘要長江源區是我國重要的水源涵養區，也是高海拔地區生物多樣性最集中的地區和生態變化最為敏感的地區。 -
In this paper, we aim at establish heat and mass coupled transfer model in the building wall, the emphasis of this study lies in creating a coupled and non - linear diferential equation system for the heat air and moisture transfer in the wall, which can be described by means of continuum mechanics and irreversible thermodynamics, the most dominant factor is moisture conten 9la gas pressure pc and temperature t, for the description of heatair and moisture transport, the general mass balance equation can be expressed by the temporal change of moisture conten 9 l, gas pressure pc and temperature t that means, in order to create a closed solvable equation system, the other additional dependencies have to be found, which the other variable depending on the variables of the solution : moisture conten 6 l gas pressure pc and temperature to the model is verified by the numerical simulation software which has been developed about building wall.,
根據節能設計要求，本文用熱力學的方法，並根據多孔介質中多相流體流動描述方面的最新研究成果? ?體積平均方程，建立了墻體熱、濕和空氣耦合熱質傳遞模型，並推導出熱、濕和空氣耦合傳遞等效擴散方程；找到建築墻體熱、濕及空氣耦合作用下熱質傳遞過程的主要影響因素濕容量_ l 、氣壓p _ c和溫度t 。開發了單體材料墻體熱質傳遞數值模擬軟體，用實測數據對軟體進行調試並對模擬計算結果進行了驗證。模擬出了單材料墻體在熱、濕和空氣耦合作用下建築墻體內的溫度和濕度分佈規律。 -
The research on static geographical information system is relatively mature at present, but any geographical entity in future is changed with time, such as generation, evolution and extinction of geographical entity. geographical information system lack of time dimension is a great pity, yet temporal gis can truly reflect the essence of future change
但是，自然界中任何地理實體都是隨時間發生變化的，如地理實體的產生、進化、消亡等，缺乏時間維的地理信息系統是一種缺憾，只有考慮了時間維的時態地理信息系統才真正反映自然界變化的本質。 -
The results showed that the temporal dynamics of predatory natural enemy community in cotton fields could be classified into seven types and the change of the community could he divided into three major stages of formation and development period ( in the vegetative growth stage of cotton ), great prosperity period ( in the vegetative and reproductive growth stage of cotton ) and decline period ( in the reproductive growth stage of cotton )
結果表明，棉田捕食性天敵群落的時序動態可以分為7種類型；演變可以分為形成和發展階段（棉花營養生長期） 、鼎盛階段（棉花營養生長和生殖生長並進期） 、衰退階段（棉花生殖生長期） 3個主要階段。 -
Annual precipitation series about 50 years is stable and no period ; further, the climate drying and desertification are n ' t caused directly by the decrease of precipitation during the period of the research according to the relational analysis among precipitation temporal - spatial change, runoff, evaporation, potential evapotranspiration and soil water ; longyangxia reservoir which was built in 1986 does n ' t have influence on precipitation up to now ; but annual temperature series in gonghe is unstable, having a linear upward trend, and it increases about 0. 0247, 0. 0422 and 0. 0272c per year, and temperature rise must be having an influence on desertification, but there is a very little temperature change, so that the effect is very small ; annual potential evapotranspiration series is stable too, so climate change has little influence on plant water consumption. 2
在青海共和盆地，近50年的年降雨量序列是平穩的、無周期，其時空變化與徑流、蒸發、潛在蒸散和土壤水分的關系表明，氣候乾燥和嚴重的荒漠化不是由於降雨量減少直接引起，龍羊峽水庫對共和盆地年降雨量變化沒有影響；但是年氣溫序列是非平穩的，茶卡、恰卜恰和貴南的年氣溫平均每年升高0 . 0247 、 0 . 0422和0 . 0272 ，且氣溫升高2 ，年潛在蒸散增加57mm ，盆地內氣候逐漸變乾燥，但影響比較小；由於歷年潛在蒸散序列是平穩的，因此氣候變化對盆地的作物潛在蒸散的影響在研究期內是較小的。 -
Our study is different from the traditional tourist market research. we take jiuzhaigou, a famous world heritage, as an example, and study it ’ s market composing, pattern, temporal change and spatial character from the perspective of temporal - spatial analysis
本研究另闢蹊徑，以我國著名的世界自然遺產地? ?四川九寨溝風景名勝區為例，主要從時空關系的角度來研究旅遊市場的組成、格局、時間動態和空間特性。 -
The data obtaining form statistical sources is used to analyze the spatial - temporal change of cultivated land and driving forces by using relevance analysis, principal component analysis and regression analysis
結果表明：鄂南丘陵山區耕地總體上呈下降趨勢，北部平原丘陵地區下降快，南部丘陵山區下降慢；近10年來，鄂南貧困丘陵山區耕地資源變化主要受經濟因子、人口、房地產政策及耕地開發強度的影響。 -
The high change of preci - pitation made spatio - temporal change of climatic productive potentialities bigger than that of photosynthesis and photo - temperature. the trend of water decreasing from south to north, from east to west in hebei, beijing, tianjin and shandong, from south to north in shanxi, shaanxi and henan made every index has the same trend almostly
降水年際變異較大，區域差異明顯，使得氣候生產力的時空變化大於光合和光溫生產力的時空變化，在中東部，水分由南向北、由東向西減少，中西部由南向北減少，使得各項指標的變化均有與此基本相應的變化趨勢。 -
Based on the data of the depth to groundwater table below land surface with observational wells in 1975, 1980, 1985, 1990, 1995, 2000 of the hebei plain, adopting gis technic and kriging interpolation method, this paper analyzes the spatio - temporal change of groundwater level in the past 25 years in hebei plain
根據1975 1980 1985 1990 1995 2000年的地下水位觀測資料，利用gis技術，採用kriging插值方法，分析了近25年來河北平原地下水位的動態變化過程，揭示了地下水位的時空演變規律，並探討了地下水位下降的原因。 -
Gis - based analysis on spatio - temporal change of groundwater level in the hebei plain
基於gis的河北平原地下水位時空變化動態分析 -
Analysis of spatial - temporal change and driving mechanism of land - use structure in shandong province
山東省土地利用結構動態變化及宏觀驅動力研究 -
Dynamics in spatial and temporal change of sandy land in horqin since the 50s of the 20th century
20世紀50年代以來科爾沁沙地景觀時空動態變化探析
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