Search results for " rev"

Exergy analysis and thermoeconomic cost accounting of a CHP steam cycle integrated with MED-TVC desalination

2016

In this paper exergy analysis and thermoeconomic cost accounting of a CHP steam cycle integrated with MED-TVC plant is performed; the purpose is to show how this methodology provides a rational criterion to allocate production costs on electricity and freshwater. After a brief overview on methodology and a description of reference plant, exergy analysis is carried out in order to calculate exergy flows and plant exergetic performance. A detailed description of the adopted thermoeconomic model is given. Cost accounting is performed considering two scenarios: in the first, the concentrated brine is disposed back to sea, thus being its exergy content definitively wasted; in the second, convers…

Seawater desalination : state of the art on conventional technologies

2009

Desalination of oilfield produced waters via reverse electrodialysis: A techno-economical assessment

2023

Produced waters (PWs) are oilfield waste streams rich in minerals and hydrocarbons whose production rate is largely increased in last decades following the corresponding increase of energy demand. The high salinity level of PWs inhibits the adoption of cheap biological treatments. Also, desalination techniques based on osmotic membranes would require severe pre-treatments. As an alternative, Reverse ElectroDialysis (RED) and Assisted Reverse ElectroDialysis (ARED) are here proposed for the first time to reduce the salinity level of PWs. RED may also guarantee an operation cost reduction thanks to its energy generation. An ad-hoc model for RED and ARED is here developed in order to deal suit…

Commodity Tax Competition and Industry Location Under the Destination- and the Origin-Principle

2007

We develop a model of commodity tax competition with monopolistically competitive internationally mobile firms, transport costs, and asymmetric country sizes. We investigate the impacts of non-cooperative tax setting, as well as of tax harmonization and changes in the tax principle, in both the short and the long run. The origin principle, when compared to the destination principle, is shown to exacerbate tax competition and to erode tax revenues, yet leads to a more equal spatial distribution of economic activity. This suggests that federations which care about spatial inequality, like the European Union, face a non-trivial choice for their tax principle that goes beyond the standard consi…

Sensitive determination of parabens in human urine and serum using methacrylate monoliths and reversed-phase capillary liquid chromatography-mass spe…

2014

A method for the determination of parabens in human urine and serum by capillary liquid chromatography (cLC) with UV-Vis and mass spectrometry (MS) detection using methacrylate ester-based monolithic columns has been developed. The influence of composition of polymerization mixture was studied. The optimum monolith was obtained with butyl methacrylate monomer at 60/40% (wt/wt) butyl methacrylate/ethylene dimethacrylate ratio and 50wt% porogens (composed of 36wt% of 1,4-butanediol, 54wt% 1-propanol and 10wt% water). Baseline resolution of analytes was achieved through a mobile phase of acetonitrile/water in gradient elution mode. Additionally, dispersive liquid-liquid microextraction (DLLME)…

Consumption values and mobile banking services : understanding the urban-rural dichotomy in a developing economy

2021

PurposeThis study develops a theoretical model of consumption values regarding the technology adoption of mobile banking (m-banking) services, with the financial service sector as the empirical context. This study aims to evaluate whether consumption values influence trust and intention. Furthermore, the authors explore how the consumer type (i.e. urban vs rural) differs in consumption values regarding adopting m-banking services.Design/methodology/approachThe data for this study were gathered from 246 responses collected from individuals living in a country with a developing market, using a survey instrument. The six study hypotheses were tested using partial least squares structural equat…

The Concept of Civility and Law

2017

From Hobbes on, the concept of law-making was strongly associated with the needs of creating a third-object (dialectics) that can control force and violence. The same concept of law and violence, which is historically associated with the Occident, paved the way for the creation of borders. By studying the legacy of Foucault and R. Castel and the contribution of sociological thinking, in this chapter we will dissect the roots of national identity and the evolution of security. While industrialism emancipated medieval peasants from their attachment to the soil, a great process of urbanization produced slums and ghettos in. Against this back drop, a new concept of civility erected a barrier be…

Pre-paradigmatic Status of Social Entrepreneurship Research: A Systematic Literature Review

2013

Abstract Social entrepreneurship (SE) research has been presented in the literature as a field of action in a pre-paradigmatic state, a field that lacks an established epistemology. Despite that impediment, several qualitative and quantitative studies have already been undertaken on the sole base of some institutions’ worldview and without previous solidification of theory. Consequently, critics and social constructivists have found much ambivalence in these and owing to the resulting mess, even question SE's legitimization as a distinctive item of research. Articles on the topic of SE make use of a variety of frameworks, borrowing from neo-institutional or dialectic theory, bringing with t…

Dietary fiber and health outcomes: an umbrella review of systematic reviews and meta-analyses

2018

Background Several studies have suggested that higher consumption of dietary fiber is beneficial for a variety of health outcomes. However, many results have been inconclusive and, to our knowledge, there has been no attempt to systematically capture the breadth of outcomes associated with dietary fiber intake or to systematically assess the quality and the strength of the evidence on the associations of dietary fiber intake and different health outcomes or medical conditions. Objective The aim of this study was to describe the diverse health outcomes convincingly associated with dietary fiber consumption. Design This was an umbrella review of systematic reviews with meta-analysis of observ…

Review of Bodard, G., Mahony, S. (edd.) Digital Research in the Study of Classical Antiquity. Pp. xx + 210, ills. Farnham, Surrey and Burlington, VT:…

2013

Review of a miscellaneous volume on the application of digital methods and tools to research in Classics.