1,720,965 research outputs found
Twenty first century standards for thermal comfort : fostering low carbon building design and operation
No full textNearly 50% of energy consumed in the developed world is consumed in buildings. Despite regulation intent, many new buildings are energy profligate. Thermal comfort standards are partly responsible for this increase in consumption. In this volume, Roaf et al. have described the evolution of current comfort standards and problems inherent in buildings they shape, and have discussed two new methods of regulating thermal comfort in buildings which recognize human adaptation and have potential for reduced energy demand. These new methods incorporate adaptation through a fixed heating and cooling threshold approach (similar to Japanese Cool-Biz) or through heating and cooling setpoints calculated based on outdoor conditions(using CEN standard equations). The impact on comfort and energy demand of these new approaches is investigated for a London office building. Variables such as future climate, future building upgrades, setback temperatures, internal gains and ventilation are also explored. Adoption of the new approaches gave a 50% reduction in heating and cooling energy for the simulated office. The new approach together with optimized setback temperatures, ventilation strategies and higher efficiency equipment gives predicted heating and cooling energy demand close to zero. Recommendations for future regulation, design and operation of buildings are proposed
Personal Control Over Heating, Cooling and Ventilation:results of a workshop at Clima 2013 conference
Get PDFThis article presents a summary of a Workshop at 11th Clima Wolrd Conference 2013 in Prague. The workshop was organised by REHVA in cooperation with ISIAQ (International Society of Indoor Air Quality and Climate), and chaired by Atze Boerstra and Angela Simone
Effect van binnenklimaatbeïnvloeding : in een laboratoriumsetting
Get PDFOnderzoeken in kantoorgebouwen hebben aangetoond dat het hebben van persoonlijke controle over het binnenklimaat een positieve invloed heeft op comfort en productiviteit. Is dit effect toe te schrijven aan het verschil in behoefte van werknemers, of is alleen het gevoel van het hebben van controle al voldoende om een positieve invloed te hebben? Dit laboratoriumonderzoek richtte zich op die vraag. Het onderzoek maakt deel uit van het promotieonderzoek ‘Persoonlijke Beïnvloeding van het Binnenklimaat in kantoorgebouwen’ van Atze Boerstra en uitgevoerd in samenwerking met de Technical University of Denmark
Effect van binnenklimaatbeïnvloeding : in een laboratoriumsetting
No full textOnderzoeken in kantoorgebouwen hebben aangetoond dat het hebben van persoonlijke controle over het binnenklimaat een positieve invloed heeft op comfort en productiviteit. Is dit effect toe te schrijven aan het verschil in behoefte van werknemers, of is alleen het gevoel van het hebben van controle al voldoende om een positieve invloed te hebben? Dit laboratoriumonderzoek richtte zich op
die vraag. Het onderzoek maakt deel uit van het promotieonderzoek ‘Persoonlijke Beïnvloeding van het Binnenklimaat in kantoorgebouwen’ van Atze Boerstra en uitgevoerd in samenwerking met de Technical University of Denmark
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The circularity of renovation solutions for residential buildings
No full textConstruction and demolition waste accounts for approximately a third of all waste generated in the EU. Adopting circularity principles to the construction processes aims to reduce waste generation. The focus of the study was on circular renovation solutions as renovation is becoming increasingly important. The renovation wave for Europe sets a target to double annual energy renovation rates in the next ten years. This study analyses circularity of the renovation concepts for the pilot renovation cases in seven countries in different climate zones in Europe. Analyses were carried out within the DRIVE 0 project funded by the European Union’s Horizon 2020 research and innovation program. Pilot buildings are detached houses and apartment buildings with different renovation interventions. Design for Disassembly criteria and embodied energy and embodied CO2 analyses combine design and material use aspects. Results show that in terms of design for disassembly indicators, prefabricated modular solutions have much higher circularity potential than the traditional wall insulation systems due to the low disassembly and reusability potential of external thermal insulation composite systems (ETICS. The environmental impact of the prefabricated insulation solutions is lower than and ETICS solutions. Although the difference between prefabricated and ETICS solutions in terms of environmental impact is smaller than in terms of disassembly and recovery options
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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