數學地理學 的英文怎麼說
中文拼音 [shǔxuédelǐxué]
數學地理學
英文
mathematical geography-
Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。Robustness of our results was confirmed by high bootstrap support of all nodes in the trees. this result contradicts the batrachia hypothesis ( a salamander + frog grouping ), and is consistent with bolt ' s hypothesis ( 1991 ) basing on the morphological data. the result was also supported by previous molecular studies based on mitochondrial and nuclear rrna data
這個結果與蛙類假說是相矛盾的，與bolt （ 1991 ）中國澤蛙線粒體基因組結構及種群系統地理學研究在形態學基礎上提出的絨蝶類和蚓螺類為姐妹群關系的假說相一致，並得到建立在線粒體和核trna基因數據基礎上的許多分子研究的支持。The authors put forwards a new method which select the terrain profile perpendicular to falling line ( opposite direction of gradient ) to determine the candidate points on ridge and valley
摘要利用有關數學原理從理論上對地形高程斷面極值法進行了分析和深入的研究，指出了該方法的不足。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。Methods based on the, autoptical result, apply the fuzzy theory and multi - grade fuzzy comprehensive appraisement means
方法依據實地調查資料，運用模糊數學的理論與多級模糊綜合評價方法。The methods of analysis and evaluation to the stability of slope, now mainl y are qualitative analysis, half quantitative analysis, physics model test and qua ntitative analysis. they all are extensively synthetically use of project geology, soil mechanics and classical mathematics physics, with the help of computers
對于斜坡穩定性的分析評價方法，目前主要有定性分析、半定量分析、物理模型試驗和定量分析等，它們都是對工程地質、巖土力學以及經典數學物理通過計算機進行廣泛的綜合運用，各有側重和優勢。By using theories from the relevant disciplines such as geography, mathematics, physics, ecology, and system sciences, this thesis develops a framework employing the concept of system entropy to represent the state function of the man - earth relationship system. in this framework the entropy change is used to show the development change of the system, and the entropy flow to express the flow among the spatial parts of the system. following the framework, and based on a large set of household data from surveys, the thesis makes a quantitative analysis of the village - level man - earth relationship system from a micro - perspective
藉助地理學、數學、物理學、生態學、系統科學等有關學科理論，根據實地調查的大量農戶數據，從微觀視角對村域人地關繫系統進行了定量分析，用人地關繫系統熵來表徵人地關繫系統的狀態函數，用熵變來反映人地關繫系統的發展變化，用熵流來表示人地關繫系統各空間型式地域主體之間的流動。Firstly, the pretreatment of character to be recognized is researched, stressed discussing the subdivisional process of character, and a kind of fast shape preserving morphological thinning algorithm is used. in the following, how to construct the structure model on the basis of characteristic point ) sub - stroke and their interrelation is discussed, and a kind of method that describe sub - stroke through the feature of the sequence of curvature is brought forward. finally, the paper adopts the recognising model of printing number that base on repository, and describes the constructing method of repository
文中首先對待識別字元的預處理進行了研究，著重探討了字元的細化過程，採用了一種基於數學形態學的保形的快速細化演算法；接著探討了如何以特徵點和子筆段及其相互關系為基礎構造結構模型，提出了一種以曲率序列性質描述子筆段的方法：最後採用了以知識庫為基礎的印刷體數字識別模型，並詳細地描述了知識庫的構造方法。One group, led by john matese, professor of physics at the university of louisiana at lafayette, confirms the notion that it is most likely to be a brown dwarf, a star that never accumulated enough mass to ignite and which has simply sat in space smouldering for billions of years
一個由拉斐特的路易斯安娜大學物理學教授約翰?馬泰塞領導的小組證實了一個想法，那就是它最有可能是一顆褐矮星，這是一種永遠也不能積聚足夠的質量著火燃燒的星，它只是在太空中數十億年地無焰悶燒。Be aimed at the characters of fluvial layered pool, such as serious intrastratal and interlayer heterogeneity, small water flooding volume and low oil displacement efficiency in its high water - cut stage, the fine research work on reservoir heterogeneity model are carried out, and the research is done on the base of geological, logging, production testing materials and production date and with a center of the research of remaining oil. the west 7th block, gudong oilfield is in case. the forming mechanisms of remaining oil and its distributing feature in this area are revealed
本文針對我國陸相沉積層狀油藏層內及層間儲層非均質性嚴重、高含水期水驅波及體積小、驅油效率低等特點，以剩餘油研究為中心，藉助于數學地質統計及聚類分析等方法，綜合利用孤東七區西的地質、測井、生產測試資料和生產動態信息等，深入開展了儲層非均質模型的精細研究，揭示了在不同規模非均質模型上剩餘油的形成機理和分佈特徵。Based on the previous research of many scholars, the thesis summarizes the methods of tourist market analysis, and then elaborates how the economy, tourists " characters and the tourism resources will affect the tourists " need. the methods of market segmenting, image designing of the tour place and target market localizing are also discussed. the survey of tourist market is emphasized in the text and some survey methods are stated
針對上述問題，本文在國內外眾多學者對吐魯番旅遊客源市場研究的基礎上，系統地總結了吐魯番旅遊客源市場現狀的描述和分析方法，並借用旅遊地理學、旅遊經濟學、心理學、行為學等學科的理論，用數理統計等方法對吐魯番旅遊區旅遊者的行為規律進行闡述，在此基礎上，概括了吐魯番客源市場細分、旅遊地形象設計及目標市場定位方法。Combining the research achievements of inbound and outbound theory, this paper begins with the relationship between ethnic culture and tourism, analyzes the value of ethnic culture in yunnan tourism development, and finally, focuses on the tourism development and protection of ethnic culture by using the theories of tourism geography, sociology, ethnology and human ecology, and brings forward suggestions on the tourism development of ethnic culture and its sustainable growth, at the same time, provides some scientific suggestions on the management of ethnic tourism destinations in yunnan province
而目前，旅遊業發展中如何開發與保護民族文化將會越來越得到旅遊管理部門和學術界的重視。本文從民族文化與旅遊的關系入手，結合國內外的理論研究成果，運用旅遊地理學，社會學，民族學，人類生態學的理論與方法，論述了民族文化資源在雲南旅遊業發展中的價值，並通過研究雲南少數民族社區民族文化資源的開發與持續開發的關聯關系問題，為雲南少數民族旅遊社區民族文化資源的利用與保護提出了一些思路和建議。Nowadays there exist some problems in tourism planning : less attention has been paid to the consumers " needs and their behavior, and the analysis of tourist market seems superficial. based on the previous research of many scholars, the thesis summarizes the methods of tourist market analysis, and then elaborates how the economy, tourists " characters and the tourism resources will affect the tourists " need. the methods of market segmenting, image designing of the tour place and target market localizing are also discussed
針對上述問題，本文在國內外眾多學者對旅遊客源市場研究的基礎上，系統地總結了旅遊客源市場現狀的描述和分析方法，並借用旅遊地理學、旅遊經濟學、心理學、行為學等學科的理論，用數理統計和模糊數學的方法對旅遊市場需求的形成、旅遊者的行為規律進行詳盡闡述，在此基礎上，概括了客源市場細分、旅遊地形象設計及目標市場定位方法。Region geography is a subject that studies reciprocity of people and nature in some region. valley management subject is a managing science studying valley, which is a forward subject of region geography and important developing subject in 21th. valley management subject should study key science questions which include valley health score, study of index system, valley hydrology management simulation, benefit model of flood management simulation zoology repair work and study of sustainable development, study of figure valley and continuance management of society and economy of valley
區域地理學是研究某一地區內人地相互作用的科學，流域管理學是以流域為研究對象的一門管理科學，流域管理學是區域地理學研究的前沿性學科，是21世紀要重點發展的學科.流域管理學應研究的關鍵科學問題主要包括流域健康評價及指標體系的研究、流域水文管理模擬、洪災管理模擬生態恢復工程效益模型及可持續發展研究、數字流域研究及流域社會經濟可持續管理研究As the provincial - level fundamental scientific research and training base of the science discipline, mss has fine academic atmosphere, hard - working open - minded teaching staff and remarkable achievements in teaching and scientific research
數學科學學院是黑龍江省省級理科基礎科學研究與人才培養基地，具有優良的教風、學風，教師治學嚴謹、科學視野開闊，教學、科研成果顯著。At the same time, how to reduce the risk of futures trading, the expense of futures trading and realize more futures interest need further research, in the view of the law, the theory of law, the papers discussed that futures contract is a standarized treaty which is consistently made by futures exchenge house and trade a certain quantity and qulity of goods on a certain time and place in the future
同時，如何降低期貨交易風險、減少期貨交易費用、實現較大期貨利益尚須進一步研究。本文從比較法學、法理學角度論述了期貨合同是由期貨交易所統一制定的，規定在將來某一特定時間和地點交割一定數量和質量商品的標準化合約。期貨合同與現貨合同、遠期合同有著本質區別，與期貨關聯合同關系密切。Jokes organized by topic, including biology, earth science, chemistry, einstein, math, and physics
-教育部所設數學物理化學生物生活科技與地球科學學習網The measurement geography is the geography methodology discipline, it utilizes mathematics method and the computer technology, the analysis nature and human geography each kind of essential factor, obtains the related geography research the scientific conclusion
摘要計量地理學是地理學的方法論學科，它運用數學方法和計算機技術，分析自然和人文地理的各種要素，獲得有關地理研究的科學結論。Usually, we consider a sampling technique in which each sample is obtained by averaging a diamond portion of the picture, as we know, a large amount of information of a image in nature mainly gathered the small area, at the same time <, . but to finger print gray image, a fine degree of quantization is particularly important for samples taken in regions of a picture across which the gray level changes slowly
目前國內外圖像濾波常用的方法有線性濾波和非線性濾波。線性濾波有完善的理論基礎，數學處理也簡單，易於fft實現，在濾波技術中佔有及其重要的地位，但對于像素受污染的指紋圖像而言由於脈沖噪聲的重脫尾，處理效果並不太理想。In order to overcome difficulties in the recovery of historical tritium concentration in the determination of shallow groundwater age by the method of mathematical physical model, this paper, just taking the expolatianal model as the example, deduces a new formula to calculate the groundwater age based on the equation of the tritium mathematical physical and the tritium analysis results in different times
摘要為克服應用氚同位素方法確定現代地下水年齡過程中存在的，需確定地下水系統輸入項的歷史背景濃度問題，本文根據地下水同位素數學物理方程，以全混模型為例，利用不同時期地下水同位素的測試結果，通過數學迭代運算，推導出計算現代地下水年齡的計算公式。分享友人