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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.
261

The analysis on the water resource development strategy in Kinmen ¡ÐA viewpoint of public value

Chang, Chung-Min 21 July 2005 (has links)
This research is mainly, composed of Mark H. Moore ¡§Creating Public Value¡GV.C.S. strategy management in government¡¨, and promoted by Wang, Ming-Shen with the viewpoint of ¡§An integrated public affair management ¡]PAM¡^ framework¡¨. Qualitative research method is used in this dissertation to analyze the process of local government promoting water resource development. The case study takes the main pusher of bureaucrats in local government as public manager. With¡§V.C.S. strategic triangle¡¨¡G Value, Capacity and Support, we discuss the mutual relation and make operational suggestions. Research result shows that with ¡§An integrated public affair management ¡]PAM¡^ framework¡¨,public manager will do good to evaluate the overall environment¡Fwith strategic triangle, public manager can evaluate the weakness of project promptly, and make practical suggestions. Therefore, we believe that V.C.S. strategy management can offer public manager broader thinking direction.
262

Stady on Land acquisition Issue During the Water Resources Development of Sourthern Taiwan Region

Liou, He-Liang 24 August 2006 (has links)
The purpose of the research is to study the solutions for the difficulties encountered in the water resources development in southern Taiwan. In the recent years, Owing to the phenomenon of global warming, many countries in the world experienced more powerful flood and longer drought then before. The water resources development of southern Taiwan is very difficult not only because the limitation of the weather and geographical condition, but also the hinder of the inner and outside factors of government organizations. The inner factors majorly include : The opinions of central government and local government cannot be integrated effectively like the old province government and results in the suspension of the engineering land acquisition. The authority¡¦s policy of water resource development is unstable, which also make the situation worse. The outside factors majorly includes: The intention of the local government authority can be affected easily by the effect of NIMBY and the pressure of environmental protection group,which causes the problem of land acquisition becoming more complicated and harder to resolve. This paper trys to study the cases of Ma-Tan Reservoir and Tseng-Wen Reservoir Transbasin Water diversion project, based on the efficiency of the land acquisition of the province government, to analyse the inner and outside factors and the dealing mechanism of government to provide some suggestions for the government.
263

Economy-wide Analysis Of Water Resource Management: A Cge Model For Turkey

Cirpici, Yasemin Asu 01 March 2008 (has links) (PDF)
Water-related issues are gaining importance at both national and global level. Water resources are becoming insufficient in meeting the rising needs. As resources are distributed unevenly throughout the world, supply and demand correspondence is difficult to meet. The analysis of water related issues should be addressed within a comprehensive framework. CGE models offer this possibility. This study aims to construct a CGE model for Turkey which includes water as a factor of production. It relates water issues with another troublesome debate that is important for Turkey: trade liberalization in agriculture. Turkey as a member of WTO and a candidate country for the EU has to consider the effects of a further liberalization in agriculture on its economy. In this study a trade liberalization scenario and a water-policy scenario have been discussed. Additional simulations are conducted in the case of a productivity increase in agriculture. Results show that, trade liberalization in agriculture leads to an increase in GDP and income levels, but had a negative impact on the trade balance in agricultural products. Applying a &ldquo / selective water tax&rdquo / will result in a decrease in production and consumption in water-intensive sectors, as well as in the private income. For the first simulation, productivity increase in agriculture leads to a further increase in both GDP level and incomes, and it compensates the trade distortions resulting from the tariff reduction. In water simulation, private income increases with productivity increase and depletion in production and consumption of agricultural products reversed. Moreover, the net exports in agriculture improve significantly.
264

none

Huang, Yu-Shan 27 July 2001 (has links)
none
265

The Kingdom of Jordan's Water Scarcity| Understanding Water Demand Management

Dabbagh, Deema 25 June 2015 (has links)
<p> The Kingdom of Jordan is one of the world's most water poor countries suffering from physical water scarcity, a growing population, regional instability, poor water infrastructure, inefficient water sector management and high water misuse. Through conducting a content analysis of 73 USAID reports, focusing on water demand management, this paper aims to understand how water demand is managed in the Kingdom, in addition to understanding the role of international aid in transforming Jordan's water sector. A greater understanding of the crisis and actions taken to mitigate the impacts were revealed by examining specific water polices and laws, the role of government structures and water sectors, and implemented projects. It was found that Jordan has taken significant efforts to sustainably manage water resources and to address growing water demand. Reallocating water among various sectors, reducing non-revenue water, and decentralizing water provision are key priorities outlined in the Kingdom's water strategy.</p>
266

A Modeling Analysis of Dissolved Carbon Dioxide Discharged from Howard F. Curren Advanced Wastewater Treatment Plant

Capps, Dustin 01 January 2011 (has links)
Currently, the US Environmental Protection Agency primarily regulates the discharge of dissolved nitrogen and phosphorous from wastewater treatment plants in the United States. A recent study has shown that the treated effluent of many plants contains concentrations of dissolved carbon dioxide well above the expected theoretical equilibrium concentration of 0.6 mg/L, indicating that carbon dioxide may have been overlooked as a possible pollutant in receiving waters. For this reason, it is necessary to examine the possible presence of a discharge plume containing high levels of dissolved CO2 downstream from the outfall of a major wastewater treatment plant in Tampa, Florida. To examine this possibility, discharge data at the Howard F. Curren Advanced Wastewater Treatment Plant was collected over a two-week period and fed into the UM3 submerged discharge model to simulate discharge conditions at peak ebb tide. In all, five separate runs of the model were performed and compared to examine plume rise, spreading rate, average dissolved CO2 concentration, and plume path. The model predicts that, for this scenario, the plume rises fairly rapidly and is also quickly diluted to near-ambient concentrations of dissolved carbon dioxide within a short distance of being discharged. While this would seem to indicate that the effects of Howard F. Curren on Tampa Bay, in terms of dissolved CO2, are negligible major limitations of the UM3 model make it difficult to say this with a great deal of certainty.
267

Evaluating the Effectiveness of Irrigation Restrictions within Key Communities in Tampa, Florida

Ozan, Lin Allen 01 January 2011 (has links)
The City of Tampa, Florida has instituted water restrictions over the past decade that have been primarily aimed at mitigating non-essential usage of water resources by limiting domestic lawn irrigation. The mandatory restrictions are enforced by the issuance of citations to violators, which is intended to promote compliance and deter from subsequent violations. This thesis provides a thorough investigation of historical water restriction with relation to compliance in order to determine which factors might be related to high rates of water usage within key Tampa communities. The objectives are to: (1) develop a GIS data set that can be used to quantitatively map and analyze domestic water usage at the parcel level; (2) examine the relationships between domestic water usage and key environmental and recreational factors, such as rainfall, seasonality, and usage of swimming pools; and (3) map the enforcement of residential lawn irrigation policy non-compliance to determine spatial relationships within the communities and test the effectiveness of current enforcement practices. The key factor that provided the most significant relationship to water usage within the communities was the amount of average monthly rainfall, with each community's water consumption having a significant negative correlation with precipitation. Water usage increased in each examined community after transitioning to more stringent water usage restrictions, with cited restriction violators increasing usage to a greater magnitude than their uncited counterparts. This may primarily be attributed to contradictions between local policy and community binding directives.
268

The Water Culture Beliefs of Embera Communities and Maternal and Child Health in the Republic of Panama

Forero, Ilenia Anneth 01 January 2013 (has links)
Water has cultural and spiritual values to indigenous people. These beliefs expose them to unsafe water sources and make them vulnerable to waterborne diseases. This background is not taken into account when countries write their water legislations, therefor imposing a management of water not readily accepted by them. The Embera group is one of the indigenous groups from the Republic of Panama, who have strong water beliefs. They live along the shore of rivers in houses built on high stilts away from urban areas. The purpose of this cross-sectional community based study is to describe through a survey the relation between the water beliefs of Embera communities living inside the Chagres National Park and the health of women and children. A house to house visit was performed in two of the five Embera communities that reside inside the Chagres National Park to enroll them and complete the survey. Sixteen Embera households with 71 family members agreed to participate. Results showed that 18.5% were children under 5 years of age and 14.1% their corresponding mothers. One hundred percent of the households rely on rural aqueduct as their source of water, with no treatment performed to this water. Women that completed elementary school or had higher education level accounted for 53.4%. Analysis of frequency of more than three diarrheal episodes in children under 5 years of age with mother's education level and months of breastfeeding had no statistical significance (X2 of 1.935, p-value of >0.05; X2 of 0.258, p-value of >0.05). When the frequency of diarrheal episodes in women and their education level was analyzed a statistically significant association was found (X2 of 6.429, p-value of 0.011). Five (38.5%) out of 13 children under 5 years of age in these communities had complete immunization calendar for their ages, but 10 (76.9%) have completed immunization for Rotavirus. No deaths due to diarrhea were reported in any member of the household. Marginalization in this type of communities is frequent since they settle in vast areas far from access to safe roads, safe water, basic sanitation and health services. A similar study can be applied to the 5 communities living in the area to have a clear view of their water beliefs, diseases and needs in order to concentrate efforts to close any gaps.
269

Time Scale of Groundwater Recharge: A Generalized Modeling Technique

Virdi, Makhan 01 January 2013 (has links)
Estimating the quantity of water that reaches the water table following an infiltration event is vital for modeling and management of water resources. Estimating the time scale of groundwater recharge after a rainfall event is difficult because of the dependence on nonlinear soil characteristics and variability in antecedent conditions. Modeling the flow of water through the variably saturated zone is computationally intensive since it requires simulation of Richards' equation, a nonlinear partial differential equation without a closed-form analytical solution, with parametric relationships that are difficult to approximate. Hence, regional scale coupled (surface water - groundwater) hydrological models make simplistic assumptions about the quantity and timing of recharge following infiltration. For simplicity, such models assume the quantity of recharge to be a fraction of the total rainfall and the time to recharge the saturated groundwater is scaled proportionally to the depth to water table, in lieu of simulating computationally intensive flow in the variably saturated zone. In integrated or coupled (surface water - groundwater) regional scale hydrological models, better representation of the timing and quantity of groundwater recharge is required and important for water resources management. This dissertation presents a practical groundwater recharge estimation method and relationships that predict the timing and volume accumulation of groundwater recharge to moderate to deep water table settings. This study combines theoretical, empirical, and simulation techniques to develop a relatively simple model to estimate the propagation of the soil moisture wetting front through variably saturated soil. This model estimates the time scale and progression of recharge following infiltration for a specified depth to water table, saturated hydraulic conductivity and equilibrium moisture condition. High-resolution soil moisture data from a set of experiments conducted in a laboratory soil column were used to calibrate the HYDRUS-1D model. The calibrated model was used to analyze the time scale of recharge by varying soil hydraulic properties and simulating the application of rainfall pulses of varying volume and intensities. Modeling results were used to develop an equation that relates the non-dimensional travel time of the wetting front to excess moisture moisture content above equilibrium. This research indicates that for a soil with a known retention curve, the wetting front arrival time at a given depth can be described by a power law, where the power is a function of the saturated hydraulic conductivity. This equation relates the non-dimensional travel time of the wetting front to excess moisture content above the equilibrium moisture content. Since the equilibrium moisture content is dependent on the water retention curve, the powers in the equation governing the timing of recharge depend on the saturated hydraulic conductivity for a large variation in water retention curve. Also, the power law relates recharge (normalized by applied pulse volume) to time (normalized by the time of arrival of wetting front at that depth). The resulting equations predicted the model simulated normalized (relative) recharge with root mean square errors of less than 14 percent for the tested cases.
270

Production of Expendable Reagents from Raw Waters and Industrial Wastes

Davis, Jake Ryan January 2014 (has links)
A couple of processes for electrosynthetic production of expendable reagents, namely acids, bases, and oxidants, from the native salt content of raw waters and industrial wastes were investigated, and the composition of mixed acids and bases made of sodium sulfate or sodium chloride salts were predicted using a model predicated on conservation principles, mass action relations, and Pitzer equations. Electrodialysis with bipolar membranes (BMED) was used to produce acids and bases in a single pass. Product concentration was limited only by the salt content of the feed water. The current efficiency for acid production was slightly higher than that for base, but neither dropped below 75%. Acid and base current utilization showed the same trends with respect to feed salt content and flow velocity, with higher efficiency at higher feed salt concentrations and flow velocities. Operating the BMED stack near the limiting current density of the bipolar membrane (BLCD) or above the limiting current density of the diluate compartment (LCD) decreased current efficiency and increased electrical power dissipation. Electrodialytic acid and base production was approximately10 times cheaper than the chemicals' f.o.b. unit costs as quoted on Alibaba.com. The mechanism and cost of on site peroxodisulfuric acid production by electrolysis of sulfuric acid solutions with boron doped diamond film anodes was investigated experimentally and with molecular dynamics (MD) and density functional theory (DFT) simulations. The cost of on site peroxodisulfate production was approximately 4 times less expensive than purchasing a 25 lb bag. It was shown that direct discharge of sulfate species produces sulfate radicals, which subsequently combined to form peroxodisulfuric acid. The likely hood of these reactions was dependent on electrode surface condition. Sulfate radicals could also be produced in solution by reaction with hydroxyl radicals generated by water discharge.

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