2,335 research outputs found
Circular construction and demolition waste?: Barriers and opportunities for creating circular business models in the EU C&DW sector
No full textThe main goal of this paper is to identify barriers and opportunities for creating the circular business models in the EU C&DW sector. Having in mind this fact, author of the paper describes market, social, governance and regulatory failures which may limit opportunities for achieving market success in the EU C&DW sector. The presentation will take into account current economic situation of the sector which is under the pressure of both global economic challenges and the EU policy aiming at popularization of the circular economy approach. As a result, different recommendations that may determine the final shape of the business models will be identified, including key resources that have to be used for successful commercialization of the different circular C&DW solutions
First photometric study of two southern eclipsing binaries IS Tel and DW Aps
No full text32nd International Physics Congress of Turkish-Physical-Society (TPS) -- SEP 06-09, 2016 -- Bodrum, TURKEYThe paper presents the first photometric analysis of two southern eclipsing binary stars, IS Tel and DW Aps. Their V light curves from the All Sky Automated Survey were modelled by using Wilson-Devinney method. The final models give these two Algol-like binary stars as having detached configurations. Absolute parameters of the components of the systems were also estimated.Turkish Phys So
Policy analysis of water management for the Netherlands. Vol VII: Assessment of impacts on drinking-water companies and their customers
No full textThis volume assesses the impacts of a number of water management policies developed by PAWN on drinking-water (DW) companies and their customers (households, commercial entities, and industrial firms). Chapter 2 summarizes briefly the major water-related problems facing DW companies in the Netherlands today, and shows why the author believes they will become more severe in the future. Chapter 3 describes the methodology in detail. Chapter 4 presents the impacts and associated discussion of PAWN's primary and groundwater cases on DW production, and on DW companies and their customers. Finally, in Chap. 5, the author assesses those impacts, draws some overall conclusions, and discusses the implications of those conclusions for the future supply and costs of DW in the Netherlands.PAW
Novel circular economy business model of high-added value products for energy efficiency: from C&DW to aerogels
No full textSince the Industrial Revolution, humanity’s use of natural resources has been basically the same: TAKE, MAKE and THROW AWAY; which consequently led to the indispensable problems of waste materials. Around 461 million tons of Construction & Demolition Waste (C&DW), excluding excavation materials, are yearly generated in EU28. This undoubtedly gives a call to novel closed-loop circular business models which reshape the Eco-system in a way the waste is 'designed out'. Here, we present a novel closed-loop circular economy model of a high-performance building insulation material from silica containing C&DW materials to silica aerogels with λ≈0.015 W/mK. In the present model, the benefit comes with the use of massive construction waste to a silica precursor and thereby aerogel production guaranteeing at least 40% product cost reduction and 40% reduction in energy consumption in real construction environment
Applying hierarchical task analysis to medication administration errors
No full textMedication use in hospitals is a complex process and is dependent on the successful interaction of health professionals functioning within different disciplines. Errors can occur at any one of the five main stages of prescribing, documenting, dispensing or preparation, administering and monitoring. The responsibility for the error is often placed on the nurse, as she or he is the last person in the drug administration chain whilst more pressing underlying causal factors remain unresolved.
This paper demonstrates how hierarchical task analysis can be used to model drug administration and then uses the systematic human error reduction and prediction approach to predict which errors are likely to occur. The paper also puts forward design solutions to mitigate these errors
Performance of C&DW materials for road applications validated by field monitoring
No full textSUPREMA – Sustainable Application of Construction and Demolition Recycled Materials in Road Infrastructures was a research project developed by the Laboratório Nacional de Engenharia Civil (LNEC), in cooperation with the University of Lisbon (IST). The use of recycled materials has major environmental and economic benefits. Its recycling contributes for a more sustainable construction and rehabilitation of road pavements. The main goals of this project were to achieve a deeper knowledge on recycled materials and correspondent technologies and to increase the confidence of road agencies and construction companies for its application in road pavements. The objective of the paper is to analyse the mechanical performance of recycled aggregates, from construction and demolition waste (C&DW), used in unbound granular layers and evaluated on experimental sections of asphalt pavements. Four sections were instrumented with strain gauges and load cells. The recycled aggregates used in these sections were: crushed concrete, crushed mixed concrete and crushed and milled reclaimed asphalt pavement (RAP). A crushed natural limestone aggregate was used in one section as a reference material. The sections were submitted to in situ load tests performed by the Falling Weight Deflectometer (FWD). In addition, an extensive program of laboratory tests was also performed related to geometrical, physical, mechanical, chemical and environmental characteristics. This paper presents the mechanical behaviour of aggregate layers obtained from the backanalysis of FWD tests results and from the instrumentation measurements. In general, it was concluded that stiffness of unbound granular layers with recycled aggregates could be considered equivalent to the stiffness of layers constructed by natural aggregates. Results of resilient modulus obtained for the studied recycled aggregates could be useful for pavement design purposes
Author reply
No full textHealth data linkage in Australia remains challenging1 as reflected in our recent experience of multi‐jurisdictional data linkage. We welcome the Population Health Research Network (PHRN) collaborative's initiatives in establishing a streamlined and unified application process in multi‐jurisdictional data linkage projects, and we fully support their vision. We acknowledge the concerns raised by Flack and Smith2 and take this opportunity to elaborate.Full Tex
Efficacy of Plasma Activation on Bleaching
No full textThis in vitro study aimed to evaluate the bleaching efficacy and color stability of nonthermal atmospheric pressure plasma (NAPP)-activated 40% hydrogen peroxide (HP) and deionized water (DW). Methods: Two hundred-forty bovine enamel−dentin samples were stained with a coffee solution before bleaching. Samples were randomly divided into 12 (n = 20): (1) HP for 5 minute (HP-5), (2) HP-10, (3) HP-20, (4) Plasma-HP-5, (5) P-HP-10, (6) P-HP-5/HP-15, (7) P-HP-10/HP-10, (8) P-DW-5, (9) P-DW-10, (10) DW-5, (11) DW-10, and (12) DW-20. After bleaching, the samples were re-stained for 48 h using red wine. The color differences measured using a dental spectrophotometer after bleaching and after re-staining were reported as ΔE1 and ΔE2, respectively. The data were analyzed using Kruskal−Wallis and Mann−Whitney U tests (p< 0.05).Complex Fluid Processin
Reliability of predicted amino acid residue preferences.
No full text<p>The membrane-targeting ability of each Gγ<sub>cyto</sub>-hybrid was quantitatively measured using the diploid growth assay. Standard deviations of three independent experiments are presented. DW-Gγ<sub>cyto</sub> (lane 1), GE-Gγ<sub>cyto</sub> (lane 2), WA-Gγ<sub>cyto</sub> (lane 3), MP10Y-Gγ<sub>cyto</sub> (lane 4), TM-Gγ<sub>cyto</sub> (lane 5), QT-Gγ<sub>cyto</sub> (lane 6), FN-Gγ<sub>cyto</sub> (lane 7).</p
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