谷值點 的英文怎麼說
中文拼音 [gǔzhídiǎn]
谷值點
英文
valley point-
According to the variation, features of the integrand, the values of peaks and troughs are taken out and formed a slowly convergent series, and the repeated averaging scheme is performed to calculate the limit rapidly and accurately
根據被積函數的變化特點，將波峰和波谷值抽取出來組成慢收斂序列，利用重復平均法快速而準確地求出其極限值。This paper take comprehensive development project - " enrich farmers through water conservancy ( eftwc project ) " in pinggu district, beijing as an example or research area, to built up indexes system for evaluating such projects based on the analysis of the project ' s functions ; to evaluate the effects of eftwc project on the development of agricultural economy in research area with statistic analysis method, such as the theory of gray system and regression analysis method. the key points of this paper are focused on as following aspects : ( 1 ) the value of eco - environmental benefits of eftwc project in pinggu district is evaluated based on utility value theory and environmental economic methods such as equivalent substitution approach, opportunity cost approach, and replacement cost ap proach ; ( 2 ) the economic effects on investment are appraised with both static and dynamic cost - benefit analysis methods ; and ( 3 ) the effects of the eftwc project on the economy and society sustainability in research area are evaluated synthetically from three aspects : society development ability, economy development ability and resources and environmental capacity
本文以北京市平谷區水利富民綜合開發工程為例，在分析了水利富民綜合開發工程功能的基礎上，建立了水利富民綜合開發工程效益價值評估的指標體系；用灰色系統理論、回歸分析等統計分析方法進行了水利富民綜合開發工程對平谷區農業經濟發展的影響評價；重點以效用價值論為理論依據，用等效替代法、機會成本法和重置成本法（恢復費用法）等環境經濟學方法，對平谷區水利富民綜合開發工程生態環境效益價值進行了評估；採用靜態和動態費用效益分析法進行了水利富民綜合開發工程投資經濟效果分析；最後從社會發展能力、經濟發展能力和資源環境承載能力3個方面進行了水利富民綜合開發工程對平谷區經濟社會可持續發展能力的綜合影響評價。By combining the advanced modern mathematical modeling theory with the advanced database application and development tools and software engineering, this paper proposes the new mathematical model, and through programming realizes the 24 - hour data forecasting of punctual load, daily peak - to - valley load and daily average load in the area
本文將現代先進的數學建模理論與數據庫應用開發工具、軟體工程技術相結合，提出了適用該地區電網負荷預報的數學模型，通過編程實現了該地區電網24小時的正點負荷、日峰谷值負荷、日平均負荷等數據預報。New users bring their own kinds of demands, existing users change their focus and often the depth of their studies, the business cycle presents its own kinds of peaks and valleys, and in most cases the data warehouse expands as it stores data to cover longer periods of time
新的用戶帶來了他們自己的需求類型，現有的用戶修改他們的焦點，並且常常改變其研究深度，業務周期呈現其自己的峰值和谷值類型，在大多數情況下，數據倉庫隨著它存儲數據跨越更長時期而進行擴展。Detailed diagnoses is made on a heavy - hard rain in the northeast qinghai - xizang plateau using ncep data of 1 x 1 with 6h intervals, more complete and integrated conventional observational data and the data set of automatic meteorological stations in plateau and new generation doppler radar data and satellite images and etc. the following conclusions can be drawn : 1. the distribution of heavy - hard rain, which is characteristics of valley topography in northeast qinghai - xizang plateau is obviously effected by topography. the distribution of yearly mean precipitation and the frequencies of heavy - hard rain in this area are descending from east to west
本文首先利用ncep時間間隔為6小時的1 1的格點資料、更全面、更為完整的常規探測資料和高原地區布設的自動氣象站資料、新一代多卜勒天氣雷達資料、衛星雲圖資料等對高原東北部地區大到暴雨的天氣、氣候特徵及大尺度環流背景進行分析，形成對高原暴雨的整體認識，並為以後的數值模擬提供大尺度環流背景及依據，分析中發現： 1 、高原東北部地區大到暴雨的分佈明顯受到地形影響，年降水量和大到暴雨次數自東向西呈階梯性遞減趨勢，分別在高原東北部的外流河谷地區和四川北部地區存在大值中心。In order to calculate synthetic seismograms in a layered half - space with the sources and the receivers at close or same depths, an efficient numerical integration method - the peak - trough averaging method ( ptam ) is proposed, based on the repeated averaging method
摘要為了計算在震源和接收點深度相同或相近情況下分層半空間介質中的合成地震圖，在重復平均法的基礎上加以改進，提出一種有效的數值積分方法峰谷平均法。In part three, according to the viewpoint of system, giving consideration to all kinds of condition of forming hillslope debris flow, taking five indexes as follow : the shape index of ditch, the mean value of greatest precipitation within 24 hours, the developing degree of unstable mass, the mean depth of loose " accumulated clay and the rate of plant cover, applying fuzzy mathematics, the paper designs a suit of scheme about judging hillslope data
第三部分，依據系統的觀點，全面兼顧了山坡泥石流形成的各種條件，選取溝谷縱剖面形態指數、最大24小時暴雨均值、不良地質體發育程度、鬆散堆積層平均厚度和植被覆蓋率五個指標，運用模糊數學方法在室內設計出一套山坡泥石流溝與非泥石流溝的判定方案。然後以野外實例數據進行檢驗，結果表明本方案分辯率較高，為84 . 6 ，且偏於安全一側。分享友人