Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources
基於以上考慮,論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討:全面回顧了「可持續發展」概念的由來與演變,對國內外「可持續發展」的研究現狀進行了述評,並對「可持續發展」概念的科學內涵進行了深入探討;對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述,對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解;全面闡述了地下水資源變值系統理論的內容和意義,並與傳統的地下水資源計算評價方法進行了對比分析,結合實例具體說明了方法的應用;深入分析了地下水資源預測預報工作的極端重要性和復雜性,對傳統的地下水資源動態預測方法進行了全面的評述,指出了各類預測預報方法的特點及適用條件,對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍,以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介
紹,並應用於地下水動態過程線的分析,採用時間序列中的b ? j法,蒙特
卡羅方法,與地下水資源變值系統理論相結合,探討了地下水動態資料分析和地下水資源預測預報的新思路;綜合分析了現今各類地下水管理模型的特點及缺陷,將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度,使模型更準確、更實用;對保證地下水資源可持續開發的內部條件和外部條件進行了分析,內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀,科學的資源計算與評價方法,可靠的資源預測預報技術,可操作的資源管理措施,外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。
The game is introduced : the cartoon city and cartoon young girl, the young girl is the soldier who protects the urban skyscraper, shoot ! towards the aerial enemy
游戲介
紹:
卡通城市和
卡通少女,少女是保護城市摩天樓的戰士,射擊!向著空中的敵人。
The game is introduced : annual match of the cartoon car ! whose performance optimum, who ' s driving technology most superb, compare, know right away
游戲介
紹:
卡通車的年度大賽!誰的性能最優、誰的駕駛技術最高超,比比就知道。
Kitaro of introduced cards & poster, 99 % new, just opened for looking only ! never play, nothing injury, cards completed, never write anything in cards
鬼太郎介
紹卡系列, 99 %新,只是拆開過看一下,從未玩過,無花痕,無缺
卡,無畫過任何東西
Descriptions and rules for dozens of traditional children s games, including indoor and outdoor activities, playground games, and jump rope rhymes
-好書介
紹卡通人物區兒童光碟及軟體的推薦,還有兒童作品發表專區
This paper in simple introduce on groundwork of kar raimund popper, from to karl raimund popper of core think - knowledge point going to generalize key for karl raimund popper of openness nature of the three world theoretical and bearing of down - to - earth world or subjunctive world going to analysis, karl raimund popper of theoretical content derive soundly ; from to again, the discuss to karl raimund popper world three the oretical in the information use with identity groundwork
摘要本文在簡單介
紹卡爾?波普爾的基礎上,就其核心思想知識論進行了歸納;重點對波普爾的三個世界理論的開放性和現實界與虛擬界的關系進行了分析,充分揭示了他的理論內涵;以此為起點,論述了波普爾世界3理論在情報學的應用及本體基礎。
87 introductory book note kabir s poems
87好書介紹卡比爾詩集