Search results for "arki"

Tariffs and efficient performance by water suppliers: an empirical approach

2012

Water leaks are an environmental and sustainable issue as well as an economic issue. The objective of this paper is to analyse the efficiency of a sample of Spanish urban water systems by considering water leaks in a network as undesirable outputs. Data envelopment analysis (DEA), an analytical benchmarking methodology, is used to calculate technical and economic efficiency. We also discuss the possible relationship between efficiency and tariffs charged to users. Results show that the possibilities for reducing water leaks in networks are high, thus demonstrating that there is room for savings from an economic and environmental point of view. The assessment of efficiency performance could …

Examining Benchmark Indicator Systems for the Evaluation of Higher Education Institutions

2009

Higher Education Institutions are undergoing important changes involving the development of new roles and missions, with implications for their structure. Governments and institutions are implementing strategies to ensure the proper performance of universities and several studies have investigated evaluation of universities through the development and use of indicator systems. In this paper, we review some of the systems applied to the OECD countries, with special attention to Spain. We demonstrate the difficulty involved in establishing classification criteria for existing indicators, on which there is currently no consensus.

Nykyajan suomalainen merimiesyhteisö : antropologinen yhteisötutkimus rahtialus M/S Eiran merimiesyhteisöstä

2006

On benchmarking the dependability of automotive engine control applications

2004

The pervasive use of ECUs (electronic control units) in automotive systems motivates the interest of the community in methodologies for quantifying their dependability in a reproducible and cost-effective way. Although the core of modern vehicle engines is managed by the control software embedded in engine ECUs, no practical approach has been proposed so far to characterise the impact of faults on the behaviour of this software. This paper proposes a dependability benchmark for engine control applications. The essential features of such type of applications are first captured in a general model, which is then exploited in order to specify a standard procedure to assess dependability measure…

Transcranial MRgFUS for movement disorder: Toward a wider and affordable employment for functional neurosurgery through 1.5-T MRI?

2018

Cadmium binding proteins induced in exposed freshwater crayfish Procambarus clarkii.

1989

This work describes results on the characterization of cadmium binding proteins (Cd-BPs) obtained from cadmium exposed freshwater crayfish Procambarus clarkii. After acclimation to laboratory conditions, induction of Cd-BPs was achieved by water exposure at a concentration of 100 micrograms Cd/L during 2, 15, and 30 d. In accordance with the method followed by Engel and Brouwer, in each case two midgut glands were minced and homogenized in Tris-HC1 buffer with PMSF to prevent protease activity and DTT to maintain reducing conditions. The homogenate was centrifuged, heat treated, applied to a column of Sephadex G-75, and eluted with the same buffer (pH 8.6). Absorbances of the fractions coll…

Load forecast on intelligent buildings based on temporary occupancy monitoring

2016

The modeling of energy consumption in buildings must consider occupancy as a relevant input, since it plays a very important role in the overall building's energy consumption. Frequently, buildings lack of permanent occupancy monitoring solutions. However, they may include data sources that are correlated with real building occupancy. This study proposes a new methodology for energy consumption modeling, supported by these alternative data sources, such as the number of vehicles in a parking lot. The aim is to mitigate investment in permanent occupancy monitoring solutions. The proposed methodology makes use of short-term real occupancy monitoring for model fitting, to enable the developmen…

Benchmarking in Romanian industrial environment

2017

Benchmarking is a managerial tool that can assist the organizational change and the innovation. The paper aims to discover the degree in which Romanian managers in various industrial fields use this modern tool in the improvement of business strategy or organizational processes. In this context, we presented some results of a selective research made in Romanian industrial environment. The respondents were experts in creativity management and benchmarking, acting in big, medium or small enterprises. They offered many solutions for increase the rate of use of benchmarking and creativity couple in the management of Romanian organizations.

Analysis of the Motor Vehicles Manufacturing Sector in Cataluña: Implementation with Radar Charts

2013

The representation of the average periods of maturation in the axes of a radial chart allows us to know the financial position reached by companies at the end of an economic year or in a certain period. The angular indicators obtained from the application of the cosine and sine theorems, according to plane geometry principles verify the deduction obtained from the observation of the radial chart and establish whether the result of each management areas displayed offers liquidez to the developed trading activity, or it is the financial positions regardless trading activity the ones which verifies the displayed financial position in the radial chart. The indicated ratio explains why companies…

Assessing the efficiency of wastewater treatment plants: A double-bootstrap approach

2017

Abstract Benchmarking the performance of wastewater treatment plants (WWTPs) is essential for promoting their long-term sustainability. Recent research has applied data envelopment analysis (DEA) models to evaluate the efficiency of WWTPs providing a synthetic index of their performance. However, the traditional DEA is a deterministic method; therefore, regression analysis cannot be used to explore the external factors influencing efficiency scores. To overcome this limitation, in this study, a double bootstrap DEA model was used for the first time to compute the efficiency scores for a sample of WWTPs. The confidence intervals for efficiency scores were estimated for each facility. Results…