Search results for "led"

The thermal performances of historic masonry: In-situ measurements of thermal conductance on calcarenite stone walls in Palermo

2018

Abstract Rich literature explores materials and construction techniques of historic buildings, but limited information is available about the thermal and hygrometric features of their envelope. Nevertheless, accurate hygrothermal data are essential for identifying effective energy upgrade measures, which must be compatible with the conservation of the architectural heritage. In order to fill this gap, it is necessary to refer to local contexts, where the variety of historic buildings is limited and their material and construction features are comparable. This paper focuses on historic masonry walls and discusses the results of twenty in-situ measurements of thermal conductance, performed al…

Evaluation of web reinforcements in prestressed concrete box girders through shear-transverse bending domains

2020

In concrete box girders, the amount and distribution of reinforcements in the webs have to be estimated considering the local effects due to eccentric external loads and cross-sectional distortion and not only the global effect due to the resultant forces of a longitudinal analysis: shear, torsion and bending. This work presents an analytical model that allows designers to take into account the interaction of all these effects, global and local, for the determination of the reinforcements. The model is based on the theory of stress fields and it has been compared to a 3D finite element analysis, in order to validate the interaction domains. The results show how the proposed analytical mode…

Utilisation des critères non financiers pour évaluer ou piloter la performance : analyse théorique

2005

The determinants which explain the use of non-financial measures in order to evaluate or drive the performance belong to disciplinary (contractual) and knowledge-based approaches. The aim of this paper is to propose a theoretical analysis of these explanations. For the disciplinary view, we realize a typology of the existing literature. We show that others theories explain the choice of non-financial measures too. For the knowledge-based view, we propose a synthesis of the existing literature in which the link between non-financial and theoretical explanations exists. Finally, we explain why the Balanced Scorecard can be associated to the disciplinary view and the Intellectual Capital to th…

Tieto, valta ja vastuu erityislasten hoidossa

2016

Artikkelissa tarkastelen sitä, kuinka erityislasten vanhempien tieto ja asiantuntemus lasta koskevissa asioissa rakentuu ja kuinka siihen suhtaudutaan auttamistyön tilanteissa. Aineistoni koostuu vanhempien kokemuskertomuksista, joissa he kuvaavat erityislapsen vanhemmuuteen kasvua sekä kohtaamisia ammattilaisten kanssa auttamistyön kentillä. Tutkimukseni rakentaa kuvan epäsymmetriselle vallalle perustuvasta vuorovaikutuksesta, jossa ammattilaisen ja asiakkaan roolia määrittelevät kulttuuriset kategoriat vaikuttavat vanhempien mahdollisuuksiin osallistua auttamistyön neuvotteluihin. Näiden kategorioiden mukaan asiakkaan roolina on olla tiedon ja avun vastaanottaja, minkä seurauksena heidän …

Information sharing in the era of social media

2016

Social media has become ubiquitous in just a few years. Their success depends on users’ willingness to continue investing their time and attention in this media and share their knowledge with each other in the absence of formal contract. This thesis attempts to examine social media users’ information sharing activities with three essays. Specifically, this thesis investigates 1 Why do social networking sites (SNS) users have online information privacy? 2 What are the antecedents of blog users’ online information privacy concerns? and 3 Why virtual team members want to sharing knowledge among each other in social media platform? To answer these questions, we conducted three studies. Specific…

Tarvitaanko päätöksenteossa tieteellistä tietoa?

2018

Identifying Critical Determinants of ‘Digital Customer Services’ Usage – An Exploratory Study

2019

Digital technology has reinvented retail business as well as commerce. This study aims to examine consumers’ perception and usage of digital customer services (DCS) and investigate three significant post-adoption and marketing consequences: simplicity, awareness, and usefulness. Using a purposeful sampling technique, 10 semi-structured, in-depth interviews were conducted with banking customers in Finland in January 2019. The research findings suggest that simplicity regarding DCS occupies a key position in their prolonged use, while awareness and usability are also important. This study offers some valuable theoretical and managerial implications and suggests an agenda for future research. …

Testing explosive bubbles with time-varying volatility: the case of Spanish public debt

2023

In this paper the dynamics of the Spanish public debt-GDP ratio is analysed during the period 1850–2021. We use recent procedures to test for explosive bubbles in the presence under time- varying volatility (Harvey et al., 2016; Harvey et al., 2019, 2020; Kurozumi et al., 2022) in order to test the explosive behavior of Spanish public debt over this long period. We extend previous analysis of Esteve and Prats (2022) where assume constant unconditional volatility in the underlying error process.

Method and Practical Guidelines for Overcoming Enterprise Architecture Adoption Challenges

2017

During the last few years, interest towards Enterprise Architecture (EA) has increased, not least due to anticipated benefits resulting from adopting it. For instance, EA has been argued to provide cost reduction, technology standardisation, process improvement, and strategic differentiation. Despite these benefits, the EA adoption rate and maturity are still low. Consequently, EA benefits are not realised. A major reason hindering the adoption is that EA is not understood correctly. This paper aims for minimising the effect of the lack of understanding EA to adopting EA. Based on the research conducted in Finnish public sector, we propose an improved Enterprise Architecture Adoption Method…

From conceptualization to constructions in Finnish as an L2 : a case study

2017

AbstractThis study traces the individual learning trajectories of an adult beginner L2 Finnish learner in expressing the extralinguistic concept of evaluation from a dynamic usage-based perspective. Our results provide support for the view of learner language as a dynamic system in which patterns wax and wane and in which a change in one component has the potential to affect the whole system. In the early stages of learning there was a strong preference to use lexical verbs first, and then adjectives. The study also shows that variability plays a role. Finally, the study confirms that the learning of L2 constructions is in some cases item based. However, another highly frequent and superfic…