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Repositório IC-Online

Institution's Scientific Repository

 

IC-Online, the Institutional Repository of Scientific Information of the Polytechnic of Leiria (IPLeiria), is part of the RCAAP Project (Open Access Scientific Repositories of Portugal). Its main objectives are to organise, preserve and disseminate the scientific production of the Polytechnic of Leiria (IPLeiria), helping to increase the visibility and impact of the institution's scientific publications.

The IC-Online Repository includes various types of digital documents, such as articles from national and international scientific journals, papers from congresses and conferences, master's dissertations and doctoral theses, among others.

Email repositorio@ipleiria.pt

Recent Submissions

Wine and wine tourism experience: a theoretical and conceptual review
Publication . Santos, Vasco Ribeiro; Ramos, Paulo; Santos-Pavón, Enrique; Almeida, Nuno
This paper aims to provide a theoretical and conceptual analysis of wine and wine tourism experiences evidencing the current state of the art and providing some directions for future research. Design/methodology/approach – The paper provides an in-depth literature review and content analysis of prior work. Findings – The experience focussed on wine and wine tourism requires further exploration. The boundaries of the wine and wine tourism experience were identified, together with highlights and strategic agenda for future actions. Originality/value – Based on some key prior literature on the topic of wine and tourism experience, future research
2019-12-02Journal article Restricted access Show more
Video game interaction and reward mechanisms applied to business applications: A comparative review
Publication . Diogo Lopes; Esteves, Micaela; Carlos Mesquita
Upon entering in a new institution, an employee has a learning curve to absorb new tools, this learning curve brings extra costs to the employing institution. Besides this, in 2008, a study from the National Institute of Statistics concluded that various Portuguese institutions have a low index of productivity. These two facts may make institutions feel more discouraged to make new hires. In this study we show that there is an unexplored potential in the adaptation of some of the gaming industry interaction and reward mechanisms to the corporate world, in order to improve the intuitiveness of business applications, by not only reducing learning and adjustment time for new users, but also to use the reward and fidelization mechanisms, as a means to motivate and increase overall productivity and employee involvement.
2012Conference proceedings Restricted access Show more
Evaluation of errors on the CFD computation of air flow and heat transfer around the human body
Publication . Martinho, Nuno; Lopes, A.; Gameiro da Silva, M.
A detailed computer aided design model representing a female human body was created from a 3-D scan of a full scale thermal manikin. The sensible heat losses due to convection and radiation for a person seated in a rectangular room were calculated using CFD simulations, as well as the parameters characterizing the flow around the body including air velocity and temperature. The accuracy of numerical results was evaluated in terms of the physical approximation errors, namely inlet boundary conditions and turbulence models, and spatial discretization errors due to the number of grid elements and grid refinement near solid surfaces. Results were compared to published data from two tests performed in conditions that portrayed the CFD simulations. The use of: a mixed turbulence model between k-e{open}, for zones away from solid surfaces, and k-ω, for zones close to solid surfaces; values of the dimensionless y + parameter inferior to 5 jointly with a low-Reynolds method to model the flow in the near-wall region of the human surface and inlet non-uniform boundary profiles for temperature, velocity and turbulence intensity, leaded to good agreement with experimental results, with a global mean relative error of the order of 7%, with a standard deviation of 4%, in terms of convective and radiative heat flux between the human body and the thermal environment.
2012-12Journal article Restricted access Show more
A state-of-the-art review on shear-friction
Publication . Santos, Pedro M.D.; Júlio, Eduardo N.B.S.
Initially proposed in 1966, the ‘‘shear-friction theory’’ has been adopted in all design codes to analyse concrete-to-concrete interfaces. In the last decades, several improvements were suggested to take into account more influencing factors, to increase the accuracy and to enlarge the application field. The inclusion of the concrete strength and density and the consideration of the dowel action are examples of the proposed improvements. This paper presents a literature review on design expressions for shear-friction, chronologically ordered, describing proposals from the earliest research studies, precursors of the theory, until the most recent studies, incorporated in the newest fib Model Code. The most significant contributions are identified and a comparison between some of these design expressions is presented. Codes updates concerning shear-friction provisions are also identified in the literature review herein presented.
2012-12Journal article Restricted access Show more
Effect of surface preparation and bonding agent on the concrete-to-concrete interface strength
Publication . Santos, Dinis S.; Santos, Pedro M.D.; Dias-da-Costa, Daniel
Concrete-to-concrete interfaces are present both in new and existing structures. Two distinctive situations can be identified: (1) placing hardened concrete against hardened concrete parts, such as the case of precast members for viaducts and bridge decks; and (2) placing fresh concrete against hardened concrete parts, such as the rehabilitation and strengthening of existing structures by concrete jacketing or concrete overlay, among other techniques, as well as the use of precast members placed on site to later receive a cast-in-place concrete layer. The bond strength of the concrete-to-concrete interface is influenced by several parameters but mainly by: (1) the surface preparation; (2) the use of bonding agents; (3) the compressive strength of the weakest concrete; (4) the moisture content of the substrate; (5) the curing conditions; (6) the stress state at the interface; (7) the presence of cracking; and (8) the amount of steel reinforcement crossing the interface, among others. This paper presents an experimental study conducted to assess the influence of the surface preparation and bonding agent on the bond strength of the concrete-to-concrete interface. The contribution of the substrate moisture is also addressed. Experimental results are discussed and conclusions drawn.
2012-12Journal article Restricted access Show more