空數據區 的英文怎麼說
中文拼音 [kōngshǔjùqū]
空數據區
英文
null area-
Based on field research and the dynamic analysis of remote sensing data of different time ( 1987 tm, 1996 tm and 2000 china - brazil earth resource satellite ccd ), using multi - information of research area ( including data of geology, geography, hydrology, meteorology, economy, human culture and dem ) and existing research results, the dissertation discusses drive factors of desertification and the relationships between drive factors and desertification with the help of gis tool and some mathematical methods such as probability, statistics, curvilinear estimation, logical analysis and analytic hierarchy process
論文在對研究區土地荒漠化現狀野外調研和不同時相（ 1987tm 、 1996tm和2000ccd ）遙感圖像土地荒漠化信息提取和演變分析的基礎上，結合研究區已有的多元信息基礎資料及研究成果（包括地質、地理、多時期的水文氣象、經濟、人文以及dem數據等） ，運用gis強大的空間分析功能和概率統計、曲線估計、邏輯分析、主成分分析、層次分析等數學方法綜合研究了土地荒漠化與各驅動因子之間的相關關系，揭示了研究區土地荒漠化的主要驅動因素，探討了荒漠化動態演化規律。Dealing with remote sensing data of different time ( 1987, 1996 landsat tm, and 2000 china - brazil earth resource satellite ccd ) and using the gis technology, the dissertation extracts the changing information of the desertification. the dissertation makes a dynamic remote sensing analysis on the desertification of the research region, and discusses the temporal and spatial evolving law of the desertification
在技術上主要採用了1987 、 1996年的陸地衛星tm數據以及2000年中巴資源衛星1號ccd數據三個不同時相的遙感數據進行圖像處理，並利用gis較強的空間分析功能，從中提取研究區土地沙漠化的變化信息，同時與研究區的其他信息數據進行疊加分析，探討了研究區土地沙漠化的時空演化特點。In chapter 2, the meteorological knowledge, data and the methods of the data processing, related to the study on the atmospheric loads, are simply presented. the model for the perfect gas constant, describes by the relative moisture, is developed. the influences of the variation in the vapor component in the atmosphere on the perfect gas constant are evaluated by using the changing characteristics of the temperature on the surface, its spatial gradient and the barometric pressure
第二章：簡要介紹大氣負荷研究所需的氣象科學知識、資料及其數據處理方法；建立相對濕度表示的大氣比氣體常數模型，利用地面溫度和空間垂直溫度梯度、壓力變化的規律估算大氣水汽組分變化對比氣體常數的影響；對中國及鄰區的地面氣壓記錄進行了預處理和網格化( 2 ) the liman problem is normally adopted to check the liability of numerical method. the calculation error was within 9 % by comparison with the theoretic solutions of liman problem in the following case, the dimensionless calculation length was 2 with high pressure zone 0. 8, and the dimensionless state parameters were p1 = 2, p2 = 1, p1 = p2 = 1, u1 = u2 = 0. experiment results in literature [ 8 ] were used to check the adaptability of the numerical model developed here for unconfined gas cloud explosions and the calculation error was within 13 %
（ 2 ）數值方法的可靠性通常用黎曼問題的解析解檢驗，本文以無量綱計算區長度為2 ，高壓區長度為0 . 8 ，狀態參數為p _ 1 = 2 ， p _ 2 = 1 ， _ 1 = _ 2 = 1 ， u _ 1 = u _ 2 = 0條件下的黎曼問題解析解對所編制的爆炸場計算程序進行了考核，結果表明該程序的計算誤差在9以內；為考核本文計算模型預測開敞空間氣雲爆炸的適用性，以文獻[ 8 ]的實驗數據進行了校核，計算誤差在13以內。The attainment proves that the method is prompter than the conventional ones and reduces the amount of work greatly. moreover, when the db is connected with regional information system of transfered, it is possible to study the changing characterises or regional land use through quantity change, furthemore, to find out the decipline and the dynamic changes of spatial distribution of type of land use through land use maps
結果表明與傳統調查方法相比速度快，工作量大大減少，且把數據庫與區域信息系統連接或被調用，不僅可以通過數值的變化，研究區域土地利用狀況的變化特徵，還可以從圖形上體現出土地利用類型的空間分佈規律，以及空間分佈的動態變化情況。The paper is mainly based on geography, ecology, sight ecology, region location theory and system theory. by interpreting the mss remote sensing image of 1970s and the tm remote sensing image of 1980s and the end of 1990s in keerqin sandlot based on background database and expert information, we have achieved the three periods vector data of land desertification of the research area, then we have disposed the data property by using the powerful spatial analysis function of arc / info and achieved the information extraction and analysis supported by arcview and erdas imagine. thus the rule of temporal and spatial variation of land desertification in keerqin sandlot is researched and the blueprint and countermeasures of the prevention and treatment of land desertification in keerqin sandlot are put forward
本研究主要以地理學、生態學、景觀生態學、區位論和系統論為主要理論支持，通過對科爾沁地區20世紀70年代的mss遙感影像、 20世紀80年代和90年代末tm遙感影像進行基於背景數據庫和專家知識的解譯，獲得科爾沁研究區土地沙漠化的三期矢量數據，利用arc / info軟體強大的空間分析功能對屬性進行處理，並在arcview 、 erdasimagine軟體的支持下進行信息提取與分析，研究了科爾沁沙地土地沙漠化時空變化的規律，提出了科爾沁沙地土地沙漠化防治的構想與對策。It was the first trial to employ the newly equipped migration data acquisition and analysis system for the scanning entomological radar and, a twin light - trap developed in china for, systematic long - term observations of migration of the beet armyworm spodoptera exigua, beet webworm loxostege sticticalis and cotton bollworm helicoverpa armigera in northern china the study provided direct evidence for the migration of 5 ". exigua in china, many parameters of migratory behaviour of the three species of insects, a better understanding of the relationship between migratory behaviour and wind or temperature field. the results enriched the theory of migration and provided new scientific knowledge for pest management in china
本研究初步闡明了我國華北地區空中昆蟲群落結構，首次使用我國自行研製的掃描昆蟲雷達的數字化數據採集及分析系統，及價廉、高效的姊妹燈誘蟲法對華北地區甜菜夜蛾spodopteraexigua 、草地螟loxostegesticticalis和棉鈴蟲helicoverpaarmigera的遷飛進行了長期系統地觀測，得到了甜菜夜蛾在我國北方遷飛的直接證據，三種害蟲遷飛行為的若干參數，認識了昆蟲遷飛行為與風溫場的關系，豐富了昆蟲遷飛理論，為我國害蟲的治理提供了科學依據。Then, the article describes the mathematic model of block adjustment with independent model andundle block adjustment which both supported by gps data. at last, takeing the digital aerial triangulation system of the red star digital photogrammetry system as the testing platform, we required some conclusions significative to actual generation
在此基礎上，建立gps數據支持的獨立模型法和光束法區域網平差的數學模型。並以紅星數字攝影測量系統中的數字空三子系統為平臺進行試驗，獲得若干對實際生產有指導意義的結論。The processing and graphical representation of aeroelectromagnetic data of over 30000 traverse kilometers demonstrate the effectiveness of the techniques, and the apparent resistivity images obtained reflect characteristics of shallow electric distrbution, thus providing new data for geological mapping
通過對3萬多測線公里航空電磁數據的處理與圖示，證明了方法的有效性，取得的視電阻率圖像反映了各測區淺層電性分佈特徵，為地質填圖提供了新的數據。Can be calculated. going a step further, it is possible to analyse cities and systems of cities and predict the course of regional urbanization by means of integrating the allometric growth models and the rs data into geographical information systems. allometric analyses of the urban system of henan, china, are made as examples to show how to use the models advanced in the paper
將城市人口-城區面積異速生長模型由城市動態相似分析和城市體系的幾何測度分析推廣到城市體系總量的動態相似分析，並據此建立了城鎮化水平預測模型，然後以河南省的城市為例說明了有關模型的應用方法，為實現基於rs數據的城市系統地理信息分析和區域城鎮化進程的空間監測拓展了思路。The anti - cruise missile system is a fire - control system, which is developed by a military factory and our lab. the assistant of firepowers disposal is the sub - system of anti - cruise missile system. it analyse the information of target protected, digital maps and the rules of enemy ` s activities to provide a optimized solution of disposals of our firepower. and also it provide plenary man - machine conversations to adjust the solution. before this system, for the purpose of firepower disposal, commanders must be autoptical to disposal, it takes long terms, and is not optimized and it has no convenience to adjust the disposal
陸軍防空兵反巡航導彈系統是某軍工廠和我們教研室合作研製的火力控制系統。輔助部陣是其中的一個子系統，它通過分析戰區地圖數據及保衛目標信息，敵方活動規律，並且提供充分的人機交互，對己方的火力點布置進行優化指派。它在戰前為己方防空部隊提供一個隊形布置的解決方案。The forest fire size class forecasting may success through many times practices if the atmosphere circulating current index and fire index are known. in the web, subscribers may forecast the class of the forest fire size using the program in the local database and get the interesting regional view which is shown by the gis software
本文實現了在提供地理空間數據的本地數據庫的森林火險的預測，在基於網路環境下，用戶可以在預測程序中得到森林火險的等級，並能使得地理軟體顯示出要預測地區的森林火險的視圖。Topics discussed included the progress in windshear alerting service, amendment 72 to icao annex 3, re - organization of airspace in the south china sea, the annual survey on services provided by the hong kong observatory, world area forecast system wafs transition matters, the launch of broadband amids and the progress on automatic dependent surveillance controller pilot data link communication ads cpdlc and aircraft meteorological data relay amdar. fig. 15 meeting on aviation weather services with air traffic management bureau, civil aviation administration of china, 12 november 2001, beijing
會上討論多項議題，包括風切變警告服務的最新進展國際民用航空組織icao附件3須作出的第72號修訂中國南海空域的重組天文臺的周年服務意見調查世界航空區域預報系統wafs過渡事宜推出寬頻航空氣象資料發送系統amids ，以及自動從屬監視系統飛行員管制員數據鏈通訊ads cpdlc和飛機氣象數據下傳amdar計劃的最新進展。According to statistics parameters of the typical clouds over xi ' an region and cloud data obtained from the global distribution of cloud cover under the auspices of world meteorological organization, for xi ' an region typical cloud, the parameters of khragian - mazin cloud drop size distribution are obtained. based on xi ' an cloud water content profile, on earth - space paths, attenuation due to cloud are calculated by means of the k - m distribution. it is shown that the attenuation induced by cloud are taken into account at ka - at elevation angle smaller than 30 and v - band paths
第三，根據西安地區氣象觀測數據，討論了西安典型雲的宏觀和微觀物理特性；根據西安典型雲的觀測結果和世界氣象組織提供的數據，得到西安典型雲的k - m雲滴譜參數；並根據西安地區雲的液水含量，計算了地一空路徑上雲的衰減，結果表明，在v波段和仰角小於30度的ka波段路徑，雲的衰減需加以考慮。Abstract : for a precise dataflow analysis within the framework of the computation function model, the logical relationship of branch conditions is represented as the coverage relationship of regions. in this paper, the authors discuss how to represent, compute and propagate the region, region of the conditional reference. meanwhile, the methods of resolving the nondeterminism caused by conditional branch statements are also presented in order to get more precise dataflow information
文摘:用計算函數模型進行精確的數據流分析，條件謂詞之間的邏輯關系被轉化為空間區域之間的覆蓋關系.該文討論在各種常見的程序構造下如何表示、計算和傳遞區域、區域，並在數據流分析過程中，利用區域、區域之間的覆蓋關系消除條件分支語句帶來的不確定性，以得到更精確的數據流信息The civil aviation department ( cad ) today ( april 19 ) begins to implement the air traffic service ( ats ) airground datalink application for the provision of the automatic terminal information service ( atis ) and meteorological information for aircraft in flight ( volmet ) within the hong kong flight information regionarea of responsibility
二一年四月十九日民航處由今日（四月十九日）起應用航空交通服務空中地面數據鏈路，在香港飛行情報區負責區內提供數據化自動航站情報服務和數據化遠航氣象情報服務。Unlike america, which sought to operate large uavs at long distances through hostile air space, israel ' s drones operated from its own defended territory, and real - time video was transmitted through short line - of - sight data links
美國是想方設法地使用大型無人機遠程進入敵方領空以採取軍事行動，以色列卻和他們不一樣? ?以色列的無人駕駛飛機從自己的防禦區域進行軍事行動，而且其實時視頻是通過短視線的數據通信進行傳輸的。Based on the distinction of monetary effect and efficiency and taken the monthly data of 1999. 12 - 2006. 6 as sample, this paper studies the relations of integrated variables with the method of canonical correlation analysis, empirically tests the combined transmission efficiency of monetary policy based on multicomponent reaction models, and finally it indicates that, in the sample range, monetary operation tools married up better, the holistic transmission efficiency is relatively high, while there exists efficiency derogation in external transmission system, but also a big space of promotion
摘要在區分貨幣政策效果和效率的基礎上，本文以1999年12月2006年6月的數據為樣本，藉助典型相關分析，對貨幣政策傳導中同屬性變量進行整組壓縮，研究整組變量間的關系，並結合交互影響的多元反饋模型，對我國貨幣政策傳導的綜合效率進行了檢驗，得出結論：樣本區間內，貨幣政策工具實現了良好的配合，整體傳導效率高，外部傳導存在著效率減損，但有很大提升空間。Mr lam said hong kong was the first place to introduce a data link volmet ( d - volmet ) service in the asiapacific region, allowing pilots to access the latest observations, forecasts and warnings in flight. " in the coming years, the hko will further improve the forecast accuracy and take advantage of the improved air - ground link to provide more user - friendly products to the aviation community.
林超英說：香港是亞太區第一個引進對空氣象數據鏈《 d - volmet 》服務的地方，好讓機師在飛行途中，透過查詢，取得最新的觀測、預報和警報資料。在未來的日子里，天文臺會提高預報的精確度，以及利用不斷改善的地對空數據鏈，提供更多更方便的產品給航空界使用。A study of performance optimization method for massive spaito - temporal data based on spatio - temporal partition clustering
基於時空分區聚簇的海量時空數據性能優化方法研究分享友人