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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Econometric models of domestic water consumption in the Tucson metropolitan area

Ray, Leon Nicholas, January 1972 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references.
2

Some aspects of legal control over water use for agriculture in central Chile a case study /

Medina, Rubens. January 1970 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison. / Typescript (photocopy). eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
3

The Analysis of the Demand for Residential Water in the City of Denton

Sawangchareon, Dumrongchai 12 1900 (has links)
The main objective of this study is to analyze the demand for water in Denton. The data used for the study are obtained from the City of Denton Utilities Department, the Tax Appraisal District and government documents. The 121 households which have perfect ten years historical data of water consumption were selected to be the representatives of all households in Denton. The study reveals that the change in water consumption significantly relates to the change in marginal price. Furthermore, the weather variables also have strong effects on the water consumption, especially during summer. The coefficients of income and a "difference" variable are found to have the opposite sign but are not equal in magnitude. In fact, they should be equal in magnitude, but opposite in sign. While the estimated coefficients on all independent variables were highly significant statistically, the resulting coefficient on the house size variable was statistically insignificant in the model test. The results show that the difference variable is required in the model. It also had some effect on the water consumption. It is found that there is a small change in water consumption when the lot size is increased.
4

The benefit analysis of government uses IMC to promote water conservation

Hsu, Ya-ting 08 August 2011 (has links)
Annual rainfall of Taiwan was 2.6 times larger than the average of the world, but the average allocation of rainfall per square meter of everyone in Taiwan was less than the fifth of the average of the world because of severe rainfall and dense population. When the government set into action of water conservation, education and guidance were the most important tools, however, the arduous challenge of the government was how to turn the slogan into the motion. This paper aimed to explore IMC (Integrated Marketing Communication, IMC) applied to public policies of the government and influenced an attitude of water consumption of consumer by literature discussion. Besides A Case Study of Taiwan Water Corporation, this paper analyzed and explored the influence of de-marketing strategies of the government on the south of Taiwan by questionnaire survey. The samples for the quantitative research were the water users from Kaohsiung City and Kaohsiung County , and there were 351 valid data finally. The conclusions were that each aspect of IMC was related to the water conservation, but only ¡§Preference Assessment¡¨ and ¡§Satisfication Assessment¡¨ had predictability. And the bettet preference and satisfication of the water conservation measures of the government consumers had, the better coordinate degree of water consumption.
5

Agricultural response to changing water prices in Arizona

Carr, Thomas Gordon, January 1977 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references.
6

Water value and demand for multiple purposes in the rural areas of South Africa: the case of Ga-Sekororo

Kanyoka, Phillipa. January 2008 (has links)
Thesis (M.Sc.(Agricultural Economics, Extension & Rural Development))--University of Pretoria, 2008. / Abstract in English. Includes bibliographical references (leaves 104-109).
7

Statistical modeling of daily urban water consumption in Hong Kong: trend, patterns, and forecast. / 香港城市日用水量的統計模型: 趨勢、模式及預測 / Xianggang cheng shi ri yong shui liang de tong ji mo xing: qu shi, mo shi ji yu ce

January 2010 (has links)
Wong, Jefferson See. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 143-151). / Abstracts in English and Chinese. / LIST OF FIGURES --- p.i / LIST OF TABLES --- p.iv / Chapter CHAPTER ONE --- INTRODUCTION --- p.1 / Chapter 1.1 --- Introduction --- p.1 / Chapter 1.2 --- Research Background --- p.1 / Chapter 1.3 --- Study Area --- p.8 / Chapter 1.3.1 --- Geographical setting --- p.8 / Chapter 1.3.2 --- Climate --- p.9 / Chapter 1.3.3 --- Water demand and supply in Hong Kong --- p.10 / Chapter 1.4 --- Objectives of the Study --- p.16 / Chapter 1.5 --- Significance of the Study --- p.16 / Chapter 1.6 --- Outline of Thesis --- p.17 / Chapter CHAPTER TWO --- LITERATURE REVIEW --- p.18 / Chapter 2.1 --- Introduction --- p.18 / Chapter 2.2 --- Concept of Urban Water Consumption / Water Use --- p.19 / Chapter 2.3 --- Urban Water Consumption Patterns --- p.19 / Chapter 2.4 --- Factors Influencing Urban Water Consumption --- p.22 / Chapter 2.5 --- Model Formulation of Urban Water Consumption --- p.29 / Chapter 2.6 --- Methods of Forecasting Urban Water Consumption --- p.37 / Chapter 2.7 --- Conclusion --- p.42 / Chapter CHAPTER THREE --- DATA AND METHODOLOGY --- p.44 / Chapter 3.1 --- Introduction --- p.44 / Chapter 3.2 --- Water Consumption and Climatic Data --- p.44 / Chapter 3.3 --- Modeling Framework and Procedure --- p.49 / Chapter 3.4 --- Base Water Use --- p.52 / Chapter 3.4.1 --- Long-term trend --- p.52 / Chapter 3.5 --- Seasonal Water Use --- p.53 / Chapter 3.5.1 --- Seasonal cycle --- p.54 / Chapter 3.5.2 --- Climatic effect --- p.58 / Chapter 3.6 --- Calendrical Water Use --- p.61 / Chapter 3.6.1 --- Day-of-the-week effect --- p.62 / Chapter 3.6.2 --- Holiday effect --- p.63 / Chapter 3.6.3 --- Persistence component --- p.64 / Chapter 3.7 --- Summary --- p.65 / Chapter CHAPTER FOUR --- RESULTS AND DISCUSSION --- p.67 / Chapter 4.1 --- Introduction --- p.67 / Chapter 4.2 --- Model Fitting and Parameterization --- p.68 / Chapter 4.3 --- Long-term Trend in Base Water Use --- p.69 / Chapter 4.4 --- Seasonal Water Use --- p.76 / Chapter 4.4.1 --- Seasonal cycle --- p.76 / Chapter 4.4.2 --- Climatic effect --- p.81 / Chapter 4.5 --- Calendrical Water Use --- p.86 / Chapter 4.5.1 --- Day-of-the-week effect --- p.86 / Chapter 4.5.2 --- Holiday effect --- p.90 / Chapter 4.5.3 --- Persistence component --- p.98 / Chapter 4.6 --- Evaluation of Model Performance --- p.112 / Chapter 4.7 --- Relative Contribution of Various Components of Water Consumption --- p.128 / Chapter CHAPTER FIVE --- CONCLUSION --- p.136 / Chapter 5.1 --- Introduction --- p.136 / Chapter 5.2 --- Summary of Findings --- p.137 / Chapter 5.3 --- Limitations of the Study --- p.141 / Chapter 5.4 --- Recommendations for Future Studies --- p.142 / REFERENCE LIST --- p.143
8

Estimating domestic outdoor water demand for residential estates

Du Plessis, Jacobus Lodewikus 04 1900 (has links)
Thesis (MEng)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: The outdoor water consumption of residential properties is a major contributor to the seasonal fluctuation of the overall water consumption of these properties. The estimation of the relating outdoor water demand has become valuable to property developers and planners alike. This could enable designers to optimise designs of water distribution networks and assist in water resource planning and gaining legislative approvals. For the purposes of this study the outdoor water-use components were mathematically defined and combined to develop an outdoor water-demand model. In order to evaluate the results of an outdoor water demand model on a monthly temporal scale it was necessary to develop a proxy outdoor water consumption evaluation method based on the metered monthly consumption of residential properties. The method entailed verifying that the generally non-seasonal indoor water consumption as a function of the winter water consumption. This entailed analysis of the total monthly, indoor and outdoor water consumption data adopted from a noteworthy North American water end-use project. The indoor water consumption estimated in this manner could then be subtracted from the overall monthly water consumption to obtain estimated monthly outdoor water consumption data. The estimated outdoor consumption could be compared with the simulated outdoor water demand, as described by the model. The parameters that formed part of the mathematical outdoor water demand model were formulated from data available for residential estates, where conditions such as types of vegetation, irrigated area and size of pool could be prescribed in a constitution, usually instituted by a home owners association. The data was derived from one estate located in the Western Cape Province of South Africa. The mathematical model was simulated using the Monte Carlo method and the @Risk software. Three residential estates located in South Africa were subsequently modelled. Additionally, the model was employed to estimate outdoor water demand for houses located in Northern America for verification purposes. The Monte Carlo simulations of the outdoor water demand model presented in this study yielded realistic results when compared with the proxy outdoor consumption figures as well as the metered actual outdoor water consumption data analysed. The peak monthly outdoor water demand estimation results were particularly close to the consumption data. This study serves as a baseline for further research into outdoor water demand. Research into the effects of water restriction and conservation potential could follow from this work, especially in today’s environmentally conscious society. / AFRIKAANSE OPSOMMING: Die buite waterverbruik van residensiëel eiendomme dra grootliks by tot die seisoenale fluktuasie van die algehele water verbruik van hierdie eiendomme. Die beraming van die dienooreenkomstige buite wateraanvraag kan waarde toevoeg vir eiendomsontwikkelaars and beplanners, indien dit ontwerpers kan instaat stel om water verspreindingsnetwerke te optimeer en te help met water hulpbron beplanning en wetlikke goedkeurings. Vir die doeleindes van hierdie studie is die buite waterverbruik komponente wiskundig gedefinieër en gekombineer om ‘n buite wateraanvraag model te ontwikkel. Ten einde die resultate van ‘n buite water aanvraag model op ‘n maandelikse tydskaal te evalueer, was dit nodig om ‘n benaderingsmetode te ontwikkel, gebaseer of die gemeterde maandelikse water verbruike gebruik. Die metode behels dat die data, verkry van ‘n bekende Noord-Amerikaanse water eindverbruikprojek, van die algmeen nie-seisoenale binneshuise water verbruik vergelyk word met die maandelikse winter water verbruik. Derhalwe kon die binneshuise waterverbruik wat op hierdie manier beraam is afgetrek word van die algehel maandelikse waterverbruik om die maandelikse buitewater verbruik te beraam. Die beraamde buitewater verbruik kon sodoende vergelyk kan word met ‘n gesimuleerde buite wateraanvraag soos beskryf deur die gesimuleerde model. Die parameters wat deel uitgemaak het van die wiskundige buite waterverbuik model was gedefinieër uit data wat beskikbaar was vir residensiële ontwikkelings, waar voorwaardes soos plantegroei, besproeiingsarea of swembad grote dikwels voorgeskryf kan word in ‘n grondwet ingestel deur ‘n huiseienaarsvereniging. Die data wat in hierdie model gebuik word is hoofsaaklik afskomstig van ‘n landgoed geleë in die Weskaap provinsie, Suid-Afrika. Die wiskundige model was gesimuleer met behulp van die Monte Carlo metode en die @Risk sagteware. Drie residensiële landgoede geleë in Suid-Afrika was daaropvolgend gemodelleer. Daarbenewens is die model gebruik die buite watergebruik van groepe huise geleë in Noord-Amerika te beraam vir verifikasie doeleindes. Die Monte Carlo simulasies van die buite water aanvraag model van hierdie studie het realistiese resultate in vergelyking met die beraamde buite verbruike sowel as die werklike gemeterde buite water verbruiksdata opgelewer. Die piek maandelikse buite water aanvraag beramings resultate was veral vergelykbaar met die piek maandeliks waterverbruik data. Hierdie studie dien as 'n basis vir verdere navorsing in buite waterverbruik. Navorsing gefokus op die gevolge van water beperkings en bewaring potensiaal kan as aanvullende voordele van hierdie studie ontstaan, veral in vandag se omgewingsbewuste samelewing.
9

Determining an urban water consumption model based on socio-demographic factors

Cheruseril, Jimmy Jose, jimmy.cheruseril@rmit.edu.au January 2007 (has links)
Water is a limited and essential resource for living and its importance is understood by all. Water is a scarce resource in Australia. Many of the river basins in Australia cover only a small area and the rivers that drain them are seasonal in flow. Climate change coupled with increasing population and a growing economy has put stress on the existing water resources. In the period of drought between 2003 and 2005 the careful consumption of water was of high importance and there is a consequent need to develop new methods to use water wisely. The state and federal governments have initiated many campaigns over the past decade to reduce water consumption and conserve water. This thesis aims to identify the relationship between socio-demographic factors and water consumption using multivariate analysis techniques and geographic information systems (GIS). This thesis has examined the water consumption patterns of Metropolitan Melbourne on a postcode level during the period 2000-2005. It has investigated how these patterns have altered with time and examined whether or not these changes are geographically linked. The effectiveness of the advertising campaigns and educational programs undertaken during the study period by The Victorian Government and its impact on Melbourne's water usage has been evaluated. Moran's I statistic was performed using water consumption to find spatial autocorrelation among postcodes. Multivariate techniques of factor and regression analysis were used to develop a model based on socio-demographic predictors to estimate water consumption. The relationship between separate dwellings, business counts, distance from GPO, semi detached dwellings and academically less qualified residents has been identified in this study. The numbers of separate dwellings and businesses have a significant influence on water consumption. Water use and soci o-demographic data are visualised by the creation of thematic maps using GIS.
10

An evaluation of a dual fluid ablution system

Baker, Larry Keith, 1940- January 1972 (has links)
No description available.

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