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Repositorio DSpace at LNEC: Recent submissions

Now showing items 321-340 of 8897

Adaptive Thermal Comfort vs Energy Efficiency in Portuguese buildings

Matias, L. (Academic Research Library, 2025-12-26)

Portuguese building thermal regulations, as well as in many other countries, define indoor thermal comfort conditions in a static way, assuming constant winter and summer comfort temperatures. Meeting these controlled ...
Numerical Analysis of the Performance of a Dual-Chamber OWC Wave Energy Converter Integrated into a Vertical Breakwater

Didier, E.; Teixeira, P. (IJOPE, 2025-12-04)

Performance of a novel dual-chamber Oscillating Water Column (OWC) wave energy converter device, composed of two separated chambers, with independent entrance and a Wells turbine, is analyzed for incident regular waves. ...
CoDEC: Connected Data For Road Infrastructure Asset Management

Biswas, S.; Proust, J.; Andriejauskas, T.; Wright, A.; Geem, C.; Kokot, D.; Antunes, A.; Marecos, V.; Barateiro, J.; Bhusari, S.; Jovanovic, U. (IOP Science, 2021-12-16)

Abstract Road infrastructure asset management is rapidly transforming into a digital environment where data accessibility, effective integration and collaboration and accessibility from different sources and assets are ...
Da tradição à inovação: a revolução da modelação física e CFD na engenharia hidráulica

Mendes, L. S.; Muralha, A.; Melo, J.; Alves, E.; Viseu, T. (APRH, 2025-04-09)

O núcleo de Recursos Hídricos e Estruturas Hidráulicas do Laboratório Nacional de Engenharia Civil (LNEC) modernizou o procedimento de avaliação do desempenho de estruturas hidráulicas. A nova metodologia, denominada ...
Analysis of Measurement Uncertainty in Experimental Methods Applied to Daylight in Buildings

Santos, A.; Lages Martins, L.; Ribeiro, A. (IMEKO Journals, 2025-09-14)

Lighting plays a critical role in ensuring both environmental comfort and energy efficiency in buildings, as it directly influences the creation of a suitable visual environment for performing visual tasks. The lighting ...
Modelling the collapse of a masonry tower during the 2015 Nepal earthquake with support from a video-camera recording

Lemos, J. V.; Oliveira, C.S.; Rupakhety, R. (Compdyn, 2025)

During the April 25, 2015 Nepal earthquake, the Dharahara Tower, a 60 m high historical brick masonry structure, located in Kathmandu collapsed completely. The tower was initially built in 1832, having suffered a previous ...
Adding value to sensor data of civil engineering structures: Automatic outlier detection

Antunes, A.; Cardoso, E.; Barateiro, J. (Revista IEEE, 2019-02-03)

This paper discusses the problem of outlier detection in datasets generated by sensors installed in large civil engineering structures. Since outlier detection can be implemented after the acquisition process, it is fully ...
Modelação numérica da interação onda–estrutura usando modelos rans: a importância dos modelos de turbulência

Didier, E.; Teixeira, P. (Pianc, 2025-11-06)

Os modelos de turbulência usados em modelos do tipo Reynolds-Averaged Navier-Stokes (RANS) aplicados em problemas de interação onda-estrutura necessitam modelar os escoamentos turbulentos complexos que se desenvolvem ...
Controlo de afluências indevidas na rede de drenagem de águas residuais - Caso de estudo de Setúbal.

Pereira, C.; Fernandes, I.; Simões, M.; Candeias, C.; Matias, C.; Brito, R.; Almeida, M. C.; Jorge, C. (ENEG, 2025-11)

"As afluências indevidas (AI) aos sistemas de drenagem de águas residuais, sejam caudais de águas pluviais, de infiltração ou de outras origens não domésticas, contribuem para um aumento dos custos operacionais, provocam ...
Improvement of InSAR displacements based on GNSS station calibration over corner reflector

Diaz, A.; Roque, D.; Lima, J. N.; Rodríguez, J.; Solla, M. (ELSEVIER, 2025-09)

This article presents an analysis of the effectiveness of performing a calibration through Global Navigation Satellite System (GNSS) data on different approaches of the Interferometric Synthetic Aperture Radar (InSAR). InSAR ...
Shear Strength of Rock Discontinuities with Emphasis on the Basic Friction Angle Based on a Compiled Database

Zoorabadi, M.; Muralha, J. (MDPI, 2025-07-11)

The shear strength of rock discontinuities is a critical parameter in rock engineering projects for assessing the safety conditions of rock slopes or concrete dam foundations. It is primarily controlled by the frictional ...
A reabilitação do interior de edifícios antigos de uso habitacional: documentos normativos, conceitos e desafios

Vicente, M.; André, P.; Branco Pedro, J. (DINÂMIA’CET-Iscte, 2025-08)

A reabilitação do interior dos edifícios antigos de uso habitacional, é uma forma de intervenção indissociável da resposta às necessidades de adaptação aos modos de vida contemporâneos. Essas necessidades de adaptação são ...
Methodologies for environmental sound assessment: Characterization and measurement approaches at Six ES Sites In Portugal

Antunes S. (NATURELAB, 2025)

Environmental sound assessment can be carried out in different ways, depending on the measurement goals, the sampling techniques used (both spatial and temporal), and the effort required to obtain representative results. ...
Macro and microstructural characterisation of rendering mortars from the 18th century Fishing House of the Recreational Farm of Marqueses de Pombal (Portugal)

Parracha, J.; Lopes dos Santos, A. R.; Santos Silva, A.; Veiga, M. R. (Edizioni Quasar, 2025-09-02)

The Casa da Pesca (Fishing House) is an 18th-century complex located within the Recreational Farm of Marqueses de Pombal in Oeiras, Portugal. The complex is located in the northern part of the farm and consists of the main ...
Effects of accelerated ageing on the long-term thermal conductivity of thermal insulating mortars

Parracha, J.; Pinchard, L.; Matias, L.; Veiga, M. R. (UCLPress, 2025-10-23)

Thermal insulating mortars have been widely used in building facades, thus improving the thermal performance of the building envelope. However, reliable data on their long-term thermal performance is still lacking. The aim ...
Optimization via Taguchi of Artificial Lightweight Aggregates Obtained from Kaolinite Clay and Ceramic Waste: Develop-ment and Industrial Applications.

Neto, J.; Anjos, M.; Dutra, R.; Souza, M.; Pederneiras, C. (MDPI, 2025-06-20)

Lightweight artificial aggregates (LWAs) are widely used in civil construction, but their conventional production depends on pure clays, a finite natural resource that negatively impacts the environment. This study aims ...
Hydraulic modelling in residential buildings using EPANET software

Poças, A.; Loureiro, D. (Springer Nature, 2025-01-11)

The EPANET software is commonly used for hydraulic modelling of drinking water distribution systems (DWDS). It is free and has been extensively used in the academic environment and by water utilities professionals. Although ...
First infilling of the underground structures of the Gouvães hydroeletric scheme - Monitoring and observed behaviour

Pereira, R.; Muralha, J.; Lamas, L. (Laboratório Nacional de Engenharia Civil, 2025-04)

The Gouvães pump-storage hydroelectric scheme includes a 7800m-long underground power conduit connecting the Gouvães and the Daivões reservoirs, with a hydraulic head of 657 m and a 49 m-high underground powerhouse located ...
Carbonation of concretes with SCMs

A. Vollpracht; G.J.G. Gluth; B. Rogiers; Q.T. Phung; Y. Villagran Zaccardi; C. Thiel; H. Vanoutrive; J.M. Etcheverry; E. Gruyaert; S. Kamali-Bernard; A. Kanellopoulos; Zhao, Z.; Martins, I. M.; S. Rathnarajan; De Belie, N.; I.D. Uwanuakwa (IIT Madras, 2024)

Due to the urgent need to reduce CO2 emissions, cement and concrete producers aim to substitute increasing proportions of Portland cement by supplementary cementitious materials (SCMs). However, lowering the clinker content ...
Metrologia Acústica e Ruido Ambiente

Antunes S.; Patricio, J. (Engenho e Média, Lda, 2025-06)

Metrologia e Medições no âmbito da Acústica Ambiental Atualmente, no campo da Acústica, a realização de medições requer a presença de três componentes fundamentais: Equipamento de medição devidamente calibrado e rastreável ...

Now showing items 321-340 of 8897

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