scholarly journals New design methodology for branched hydraulic networks that accounts for variable water demand and energy assessment

2020 ◽  
Author(s):  
Araceli Martín Candilejo
Keyword(s):  
Water Demand ◽  
Design Methodology ◽  
Energy Assessment ◽  
Hydraulic Networks ◽  
Variable Water

Water rate to manage residential water demand with seasonality: peak-load pricing and increasing block rates approach

Water Policy ◽  
2014 ◽  
Vol 16 (5) ◽  
pp. 930-944 ◽  
Author(s):  
María Molinos-Senante
Keyword(s):  
Water Demand ◽  
Peak Load ◽  
Water Shortage ◽  
Water Pricing ◽  
Urban Water ◽  
Seasonal Demand ◽  
Tourist Town ◽  
Water Rate ◽  
Water Scarce ◽  
Variable Water

A strong seasonal demand for water occurs in many tourist areas, which might exacerbate the water shortage problems. Water pricing is a key instrument for water use management; therefore, the objective of this work was to design a variable water rate to examine the seasonal water demand in water-scarce regions. The proposed water rate combines the peak-load pricing (PLP) and increasing block rate (IBR) strategies. PLP results in full cost recovery of urban water services; however, IBRs penalise excessive water consumption. Moreover, the proposed water rate structure allocates the costs among users depending on their consumption. Subsequently, an empirical application was developed for a Spanish tourist town illustrating the usefulness of the water rate proposed. In conclusion, the combination of the PLP and IBR approaches is a useful water-pricing strategy for increasing the sustainability of the urban water supply under the conditions of seasonal water demand and water shortage.

scholarly journals Global to small island; a cross-scale foresight scenario exercise

foresight ◽  
2020 ◽  
Vol 22 (5/6) ◽  
pp. 579-598
Author(s):  
Crystal Drakes ◽  
Adrian Cashman ◽  
Eric Kemp-Benedict ◽  
Timothy Laing
Keyword(s):  
Water Demand ◽  
Design Methodology ◽  
Feedback Loops ◽  
Small Island ◽  
Global Changes ◽  
Demand Model ◽  
Content Type ◽  
Complementary Method ◽  
Caribbean Islands ◽  
Island States

Purpose The use of socio-economic scenarios in small island developing states (SIDS) when assessing, and planning for, the impacts of global changes on national socioeconomic and environmental systems is still in its infancy. The research conducts a cross-scale foresight scenario exercise to produce regional scenarios and national storylines for Caribbean islands that are of “partial” consistency to the shared socioeconomic pathways (SSPs) and representative concentration pathways (RCPs) and shows how future socioeconomic and climatic changes can be applied to inform natural resource management decisions. Design/methodology/approach To develop the scenarios, the study uses a three-staged linking process using mixed methods to “triangulate” each technique to compensate for weaknesses of one method by introducing a complementary method at each stage. A participatory-expert stepwise approach with feedback loops is used and complemented with a climate sensitive tourism water demand model. Findings Four regional exploratory socio-economic scenarios were constructed that are partially consistent with global scenarios. In addition, national storylines for four island states were developed based on the regional scenarios. Using RCP 4.5 hotel water demand in Barbados is estimated under three of the regional scenarios based on compatibility. The results indicate there is a 17% difference between the highest and lowest estimated water demand, indicating the effect of varying socio-economic conditions on water demand. Originality/value The paper contributes to the literature by presenting regional socio-economic scenarios, specifically for SIDS, that are partially consistent with both global climatic RCPs and SSPs using a cross-scale approach. The scenarios are then used to demonstrate how future socio-economic pathways impact on freshwater demand.

scholarly journals Suspension of irrigation during the maturation phase of sugarcane (Saccharum spp.) cultivation

2021 ◽  
Author(s):  
Mepivoseth Castelán-Estrada ◽  
Sergio Salgado-García ◽  
Jesús M. Méndez-Adorno ◽  
Luz C. Lagunes-Espinoza ◽  
Samuel Córdova-Sánchez ◽  
...  
Keyword(s):  
Water Stress ◽  
Water Demand ◽  
Design Methodology ◽  
Growth Cycle ◽  
Maturity Stage ◽  
Sugar Mill ◽  
Experimental Plot ◽  
Saccharum Spp ◽  
Plot Design

Objective: To evaluate if there is an increase in the concentration of sugars in sugarcane grinding stalks as a result of controlled water stress. Design/Methodology/Approach: An experimental plot on cultivar MEX 69-290 was established in 2nd ratoon cycle, on a mollic Gleysol soil in the supply area of ​the​ Pujiltic sugar mill. Five treatments in irrigation suspension were established: T1 = 15 days; T2 = 30 days; T3 = 45 days; T4 = 60 days, and T5 = 75 days of suspension. The treatments were distributed in the field in a gradient plot design, following the slope of the land, with four repetitions within each irrigation strip. Results: The results show that suspending irrigation between 45 and 60 days before harvest increases the quality of the juices as well as the yields of the grinding stalks. In addition, natural precipitation plus irrigation water do not satisfy the water needs of the crop in the area under the scheme followed by the farmers. Study Limitations/Implications: Irrigation rotation. Findings/Conclusions: The authors recommend providing the necessary amount of auxiliary irrigation to satisfy the water demand of the crop during the growth cycle but suspending irrigation at the beginning of the ripening and maturity stage.

Accuracy in the design methodology of abstracts

2003 ◽  
Vol 84 (2) ◽  
pp. 303-303
Author(s):  
Maurice Bernaiche ◽  
Michael Andary
Keyword(s):  
Design Methodology

Tourism awareness as a tourism development strategy: status of the issue

2020 ◽  
Vol 13 (9) ◽  
Author(s):  
M.I. Rosas-Jaco ◽  
S.X. Almeraya-Quintero ◽  
L.G. Guajardo-Hernández
Keyword(s):  
Development Strategy ◽  
Design Methodology ◽  
Local Development ◽  
Local Population ◽  
Host Community ◽  
Government Policies ◽  
Training Manual ◽  
Environmental Development ◽  
Main Engine ◽  
The Relationship

Objective: Tourism has become the main engine of economic, social and environmental development in several countries, so promoting tourism awareness among tourists and the local population should be a priority. The present study aims to suggest a status of the research carried out on the topic of tourism awareness. Design / methodology / approach: The type of analysis is through a retrospective and exploratory bibliometric study. The analysis materials were scientific articles and a training manual published between 2000 and 2020, registered by Scopus, Emerald insight and Dialnet, using “tourism awareness” as the keyword. Results: When considering the three senses in which tourism awareness ought to operate, it is concluded that studies are more focused on the relationship and contact of the host community with the tourist. It is observed that four out of six articles in this sense consider that education, training, and government policies around tourism awareness should be developed in a better way in the destinations, in order to be an element that contributes to the development of communities and reduces poverty in developing countries. Study limitations / implications: It is considered a limitation not to include thesis dissertations. Findings / conclusions: It is necessary to make visible the importance of tourism awareness as a local development strategy for communities, in addition to including tourism awareness on the part of tourists.

Assessment of land-use change in coastal areas through geographical information systems

2020 ◽  
Vol 13 (10) ◽  
Author(s):  
Verónica Lango-Reynoso ◽  
Karla Teresa González-Figueroa ◽  
Fabiola Lango-Reynoso ◽  
María del Refugio Castañeda-Chávez ◽  
Jesús Montoya-Mendoza
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Geographical Information Systems ◽  
Design Methodology ◽  
Scientific Information ◽  
Coastal Ecosystems ◽  
Coastal Areas ◽  
Geographical Information ◽  
Coastal Zones ◽  
Computer Based

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.

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