采樣過密 的英文怎麼說
中文拼音 [cǎiyàngguòmì]
采樣過密
英文
oversampling-
Through measuring slope forms on the spot, serried sampling, physical and chemical analyzing, and measuring soil erosion from natural and artificial rainfalls, the project researched in the approaches and behaviors of soil erosion affecting contents of soil carbon and nutrient, and the law of soil carbon and nutrient distributing in micro - topographty under influences of soil erosion. in the same time, supported by geographic information system, models of soil carbon and nutrient changing with soil erosion have been built, and spatial processes of soil erosion affecting soil carbon and nutrient have been simulated, and annual and long - term changing of soil carbon and nutrient under impact of soil erosion have been estimated and forecasted, and synchronously, a elementary assessment for different soil erosion management has b een performed by using the models built in the study
本研究以三峽庫區秭歸縣水田壩鄉王家橋小流域四個徑流試驗區二十個標準小區為研究對象，通過坡形實地測量、坡面密集采樣的顆粒分析和養分含量分析以及人工模擬降雨實驗，研究了土壤侵蝕對土壤碳和養分的影響途徑和表現，侵蝕作用影響下土壤碳和養分在微地形空間的分佈規律；同時，在地理信息系統的支持下，建立了侵蝕條件下的土壤碳和養分變化模型，模擬了侵蝕對土壤碳和養分影響的空間過程，預測了侵蝕影響下土壤碳和養分的年變化及多年變化，並通過研究建立的模型對不同侵蝕控制措施進行了初步的效益評價。The soil organo - mineral complexes, formed by intimate association of organic matters or humic substances and mineral, is one of the fundamental features that distinguishes soils from their geological parent materials, and effects on the nature of soil aggregate, and the amounts and characters of soil particle aggregation is closely related to soil fertility. by way of collecting soil samples outdoors and analysis indoors and using the dry land soils developed from purple soils as research materials, this paper investigated status of organo - mineral complexion, characters of aggregation and soil fertility for discussing the relationship among them under different land treatments, and the factors that influencing the amounts and characters of organo - mineral complexion and soil aggregation and restricting status of soil fertility, the main results were as follows : there were remarkable differences of status and activity of fe oxide and aluminum oxide in dry land soils developed from different parent soils and under different utilizations
土壤中有機物質和礦物質的結合?土壤有機無機復合體是土壤區別其母質的基本特徵之一，它對土壤團聚體的性質有很大的影響，而團聚體的數量和性狀有跟土壤肥力密切相關，本文以不同母巖發育的旱地紫色土作為研究材料，通過野外采樣和室內分析，研究了旱地紫色土的有機無機復合狀況、團聚體特徵和肥力水平，探討了在不同土地利用方式下它們之間的關系，以及影響有機無機復合、土壤中團聚體的數量、性質以及制約土壤養分狀況的因素，主要結果如下：不同類型的紫色土鐵鋁氧化物形態和活性具有很大差別。Abstract : according to the variation in content of characteristic radioactive nuclide and the close relationship between high - grade associated elements in ore - forming components and gold, the ground gamma - ray spectrometry and x - ray fluorescence slectrometry can be used to reveal the existence of gold mineralization rapidly in field and make semi - quantitative evaluation of gold grade. this is of great significance in guiding field geological sample collection and mountain land engineering
文摘:通過測定特徵放射性核素的含量變化以及利用成礦組分中一些高品位共生元素與金密切的相關關系，可利用地面伽馬能譜與x熒光測量在現場快速揭示金礦化的存在，同時對金的品位進行準定量評價，以及指導野外地質采樣和山地工程。Markov chain monte carlo simulation ( mcmc ) was taken to sample the posterior distribution to get the marginal posterior probability function of the parameters, and the statistical quantities such as the mathematic expectation were calculated
通過馬爾科夫鏈蒙特卡羅模擬對后驗分佈進行了采樣，獲得了參數的后驗邊緣概率密度，並在此基礎上獲得了參數的數學期望等統計量。Based on the analysis of those existing generative models, this paper conducts research on the local modeling based face recognition method, and obtains the following results : ( 1 ) proposes a densely local matching ( dlm ) based face recognition method, in which by densely sampling original images we can get several sub images, which reflect features of different local regions, and obtained the final matching similarity through syncretizing the results of local subimage matching similarity
本文在分析現有的產生式方法的基礎上，對基於局部建模的人臉識別方法進行研究，取得了以下研究結果: （ 1 ）提出了一種基於稠密局部匹配（ denselylocalmatching ，簡寫為dlm ）的人臉識別方法。該方法通過對原始人臉圖像進行稠密重采樣，得到反映不同局部區域特徵的子圖像，並最終通過融合局部子圖像匹配結果來得到最終的圖像匹配相似度。The principles of sigma - delta modulator have been discussed firstly and the influences of structure and parameters on resolution have been analyzed. then on the base of theories, the simulink toolbox of matlab has been used to make behavior simulation and fft analyse of two main structures : 2 - 1 - 1 and 2 - 2. the related parameters of modulator such as : psd, sndr and enob have been gotten by simulink toolbox on the conditions of different oversampling rates. from the analyses above, topology of modulator has been chosen
調制器的原理進行了介紹，分析了各種結構及參數對調制器精度的影響;其次，在理論指導的基礎上，利用matlab的simulink工具包對調制器兩種主要級聯結構: 2 - 1 - 1和2 - 2結構進行了行為級模擬和fft分析，得出了在不同過采樣率條件下，兩種結構調制器的功率譜密度、信噪失真比以及有效位數，通過比較確定了調制器的拓撲結構。In the characteristic measurement of surface, a method of surface " s self - adoption - character measurement is adopted in the paper to achieve the distribution of data " s density. the formula of coordinate transformation is educed and the calculate process in data fitting is proposed
對曲面的特徵測量，採用曲面的自適應特徵數字化方法解決采樣數據的密度分配問題，對有標準參考坐標下和在不同參考坐標下的多視拼合問題，導出了坐標變換的公式並提出了數據拼合的計算過程。The first is to build reservoir geological models for fang 2 area of daqing songfangtun oil field, based on the application of seismic data that is areally dense, and well - log data that provides good vertical resolution. the second is to study the technique details of reservoir geological modeling integrated seismic and well - log data, based on the study of reservoir geological modeling in fang 2 area of daqing songfangtun oi ! field, so that the methods of reservoir geological modeling can be tested and some experience can be accumulated for daqing oil field
本文研究的目的，一是利用橫向上具有密集采樣的地震數據和在縱向上具有高解析度的井數據，為大慶宋芳屯油田芳2區塊建立較為精確的儲層地質模型，對芳葡62 - 34 ?芳48 - 38斷塊布井方案進行認證；二是通過對大慶宋芳屯油田芳2區塊結合地震資料建立儲層地質模型的研究，探討地震與地質資料綜合儲層地質建模的技術細節，為大慶油田結合地震資料建立儲層地質模型進行方法嘗試和積累經驗。分享友人