Search results for "consumption"
showing 10 items of 1796 documents
An Urbanistic Project Based on General Systems Theory
1991
This paper intends to be an outline of the Urbanistic Development Planning of the Valencian Community in Spain to be performed during the years 1991 to 1993, The following are considered as objectives of the Planning: – Quality of Life improvement, – protection of Nature, – rational management of natural resources, – rational use of land; all based on social demand. The territory and the mechanism of intervention is considered as a system whose elements can be grouped as: – uses of land, – infrastructure, equipment, services, – objectives, – intervention and management. The Planning proposes itself to be: integral, strategic, prospective, programmed, controllable and participative, A simula…
A review of the Digital Twin technology for fault detection in buildings
2022
This study aims to evaluate the utilization of technology known as Digital Twin for fault detection in buildings. The strategy consisted of studying existing applications, difficulties, and possibilities that come with it. The Digital Twin technology is one of the most intriguing newly discovered technologies rapidly evolving; however, some problems still need to be addressed. First, using Digital Twins to detect building faults to prevent future failures and cutting overall costs by improving building maintenance is still ambiguous. Second, how Digital Twin technology may be applied to discover inefficiencies inside the building to optimize energy usage is not well defined. To address thes…
Hydraulic Design of the Center-Pivot Irrigation System for Gradually Decreasing Sprinkler Spacing
2021
Design strategies that enhance modern irrigation practices, reduce energy consumption, and improve water use efficiency and crop yields are fundamental for sustainability. Although microirrigation is currently a widely applied method, center-pivot irrigation systems have become very popular on large farms, thanks to their automation, wide-coverage, and reliability. Different design procedures have been proposed, even though some aspects have not been solved yet. This paper presents a simple design procedure for center-pivot systems using a gradually decreasing sprinkler spacing along with a pivot lateral, which makes it possible to set favorable and uniformly distributed water application r…
Irrigated agriculture: Water resources management for a sustainable environment
2014
In the last decade, research on irrigation has mainly been aimed at reducing crop water consumption. In arid and semi-arid environments, in relation to the limited water resources, the use of low quality water in agriculture has also been investigated in order to detect their effects on soil physical properties and on crop production. More recently, even the reduction of energy consumption in agriculture, as well as the effects of external factors, climate change and agricultural policies, have been major research interests. All these objectives have been considered in the papers included in this special issue. However, in the last years, approaches aimed at reducing crop water requirements…
La integración de la educación ambiental en la formación periodística como proyecto de innovación docente
2012
El reconocimiento del papel de los medios de comunicación como constructores de la realidad y como educadores informales en la sociedad actual inspira la acción educativa que se presenta como proyecto de innovación docente en la práctica universitaria. El objetivo de esta intervención pretende potenciar la reflexión crítica y activar el proceso enseñanza-aprendizaje en torno a la problemática ambiental relacionándola con la actualidad periodística y las rutinas productivas de los medios en la asignatura Fundamentos de la Comunicación Periodística que se imparte en el primer curso de los Grados de Ciencias de la Comunicación. En concreto, la integración de la Educación ambiental en la formac…
Sharing media content in social media: The challenges and opportunities of user-distributed content (UDC)
2017
The article explores the distribution of mass media content by the online audience that connects by using the different social platforms, such as Facebook, Twitter and WhatsApp. The focus is on the new and developing concept of user-distributed content (UDC). From the viewpoint of media organisations, UDC is a process by which the mass media converge with online social networks through the intentional use of social media services and platforms in an effort to expand the distribution of media content. UDC does not have a long trajectory as a study object in media studies. The study suggests that practices related to UDC can be more strongly incorporated into management and journalism in main…
Staphylococcal alpha-toxin kills human keratinocytes by permeabilizing the plasma membrane for monovalent ions
1993
Incubation of human keratinocytes with nanomolar concentrations of Staphylococcus aureus alpha-toxin leads to irreversible depletion of cellular ATP. The toxin forms hexamers in the target cell membranes, and rapid transmembrane flux of K+, Na+, and 86Rb+ is observed. Unexpectedly, pores formed in keratinocytes through application of low but lethal doses of alpha-toxin appeared to be considerably smaller than those formed in erythrocyte membranes. They permitted neither rapid influx of Ca2+ or propidium iodide, nor efflux of carboxyfluorescein. Larger pores allowing flux of all three markers did form when the toxin was applied at high concentrations. Flux of monovalent ions and reduction in…
Concurrent and Distributed Projection through Local Interference for Wireless Sensor Networks
2012
In this paper we use a gossip algorithm to obtain the projection of the observed signal into a subspace of lower dimension. Gossip algorithms allow distributed, fast and efficient computations on a Wireless Sensor Network and they can be properly modified to evaluate the sought projection. By combining computation coding with gossip algorithms we proposed a novel strategy that leads to important saving on convergence time as well as exponentially decreasing energy consumption, as the size of the network increases.
Food loss and waste in food supply chains. A systematic literature review and framework development approach
2021
Abstract This study examines the state of the art of the literature in the domain of food loss and waste (FLW) in food supply chains (FSC). The authors used a systematic literature review (SLR) approach to examine and synthesise the findings of the existing literature to identify the key research themes, research gaps and avenues of future research on FLW in FSC. To this end, this SLR considered 152 articles relevant for the review. The authors uncovered the extant literature in the domain by presenting the research profile of the selected studies, along with thematic analysis. The authors identified eight key themes from the extant literature. The themes range from factors responsible for …
Raising Energy Saving Awareness Through Educational Software
2013
A study that I have conducted on a sample of 395 children aged 6 to 12, from both the urban and the rural environments, shows that an increasing number of them use computer related technologies. Today there are an increasing number of web sites that inform the user of different ways to save energy and to reduce energy consumption because it is only natural that the modern information society would go online to research such topics. The development of an educational application that is focused on teaching the children about energy saving is represented on a timeline. We conducted a study in which a number of 29 children, aged between 8 and 10, use this educational application and a questionn…