Search results for "Building"
showing 10 items of 1985 documents
Efficient microwave-assisted synthesis of glycerol monodecanoate
2017
International audience; Solvent-free microwave-assisted synthesis was carried out to prepare 2,3-dihydroxypropyl decanoate, by esterification of decanoic acid in the presence of two distinct glycerol derivatives, glycidol, and glycerol carbonate, respectively. The process described is based on microwaves heating source with electrical power in the range of 200–400 W, involving stoichiometric proportions of decanoic acid and glycerol derivatives, and using catalytic amounts of TBAI used as organocatalyst. Conversion and selectivity rates of esterification reactions were monitored by 1H and 13C{1H} NMR spectroscopy. The predominantly formed ester, 2,3-dihydroxypropyl decanoate was fully chara…
Undecylenic acid: A tunable bio-based synthon for materials applications
2016
International audience; An undecylenic acid-based monoglyceride prepared from glycidol and undecylenic acid is used as suitable and tunable synthon for polymerization applications. Epoxidation and acrylation reactions lead to photopolymerizable monomers while transesterification with dimethyl carbonate, metathesis and aminolysis reactions provide access to polyhydroxyurethane-based materials. The successive intermediates were synthesized according to a green chemistry approach implicating solvent-less and catalyzed reactions, and were at each step fully characterized by infrared, 1H and 13C{1H} NMR spectroscopy, elemental analysis and mass spectrometry. Analyses of the resulting polymer mat…
A Possible Approach to Take into Account the Presence of Green Roofs in the Energy Certification of Buildings
2011
Efficiency improvement of a ground coupled heat pump system from energy management
2011
The installed capacity of an air conditioning system is usually higher than the average cooling or heating demand along the year. So, most of the time, the system is working under its actual capacity. In this contribution, we study the way to improve the efficiency of a ground coupled heat pump air conditioning system by adapting its produced thermal energy to the actual thermal demand. For this purpose, an air conditioning system composed by a ground coupled heat pump and a central fan coil linked to an office located in a cooling dominated area was simulated, and a new management strategy aiming to diminish electrical consumption was developed under the basic constraint that comfort requi…
Using Group Model Building and System Dynamics Modeling in Health Care Quality Assessment
Introduction & Research Aim Drawing from previous research on performance management, arguing that measurement systems in the public sector sometimes lead to harmful outcomes (Bianchi, 2010, 2015; Bivona & Montemaggiore, 2010), the purpose of this study is to assess the long-term dynamic impact of “ESY-net” (i.e. the Greek public hospitals' national performance measurement system) on the quality of healthcare services. Methods As hospital quality is a quite broad and abstract concept, perceived differently by different stakeholders, we will take a systemic view (Meadows, 2008; Sterman, 1994) and use Group Model Building (GMB) (De Gooyert, 2016, 2018; De Gooyert, Honingh, & Van G…
Datorzinātne un informācijas tehnoloģijas
2011
Sistemi costruttivi tradizionali in gesso nell’architettura siciliana
2020
Chalks outcrops characterize all the central-western territory in Sicily. They are different in types and extension and tangibly mark the presence of the well-known sulphurus chalky series. In the same areas it is possible to see several traditional buildings built, even in their structures, using gypsum, an material which is unusual in other contexts. In some cases the chalk outcrop makes up even the base of a building. This text describes different kinds of walls, floors, vaults and flooring where gypsum is the main material.
Thermoeconomic Analysis Under Dynamic Operating Conditions for Space Heating and Cooling Systems in Small Residential Buildings
2018
Due to the social concern for energy savings and ecological improvement necessity in the performance of buildings, new analysis tools emerged. Thermoeconomics connects the physics and economics of energy conversion processes through the second law of thermodynamics. A limited number of thermoeconomic applications in buildings have been proposed, due to the difficulties in dealing with very irregular energy load profiles and unsteady plant operating conditions, which require the use of dynamic approaches that increase the complexity of the method. The present study highlights the potential of thermoeconomics as a support for decision making, due to the capability to identify trade-offs betwe…
Intersectoral partnerships and competencies for mental health promotion: a Delphi-based qualitative study in Finland.
2021
Summary The importance of intersectoral collaboration and partnership working in mental health promotion, together with the requisite competencies for effective collaboration, is widely acknowledged. This Delphi-based qualitative study examined how intersectoral collaboration and partnership work are constructed and adopted in mental health promotion practice. Descriptive data from a Delphi panel of mental health promotion practitioners working in the health sector (n = 32) were used as a data source. Thematic analysis was used to analyze the data. Applying the theory of collaborative advantage, eight themes of collaboration advantage and the related competencies were identified: management…
Potential non-disasters of 2021
2022
Author's accepted manuscript. This author accepted manuscript is deposited under a Creative Commons Attribution Non-commercial 4.0 International (CC BY-NC) licence. This means that anyone may distribute, adapt, and build upon the work for non-commercial purposes, subject to full attribution. If you wish to use this manuscript for commercial purposes, please contact permissions@emerald.com. Purpose: This short paper compiles some potential disasters that might not have happened in 2021 even though a major hazard occurred. No definitive statements are made of what did or did not transpire in each instance. Instead, the material offers a pedagogical and communications approach, especially to e…