Results 61 to 70 of about 3,395 (206)

Artificial ground reflector size and position effects on energy yield and economics of single‐axis‐tracked bifacial photovoltaics

open access: yesProgress in Photovoltaics: Research and Applications, Volume 32, Issue 10, Page 675-686, October 2024.
Artificial ground reflectors were studied through modeling and field experiments for bifacial single‐axis‐tracked photovoltaic systems. Fielded reflectors increased daily energy yield up to 6.2%. Modeled reflectors increased irradiance by 1.9–8.6% and energy yield by 0.9–4.5% annually after considering clipping.
Mandy R. Lewis   +4 more
wiley   +1 more source

Kapconstructies uit de 18de eeuw: stilstand of vernieuwing?

open access: yesBulletin KNOB, 2008
In relation to the architecture of façades, in the 18th century the roof got a less striking, even secondary position in comparison with the high ornamental roof still in vogue in the 17th century.
Dirk Jan de Vries
doaj   +1 more source

Effectiveness of double cutout on lateral buckling analysis of fiber reinforced composites

open access: yesPolymer Composites, Volume 45, Issue 12, Page 10880-10887, 20 August 2024.
Lateral buckling test mechanism. Abstract Lateral buckling, an essential mechanical phenomenon observed in composite beams subjected to specific external loads and boundary conditions, is influenced by various factors including cutout dimension, shape, position, and beam thickness in woven fabric laminated composite cantilever beams.
Mehmet Bulut
wiley   +1 more source

An artificial intelligence approach to palaeogeographic studies: a case study of the Late Ordovician brachiopods of Laurentia [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches
According to the earliest hypothesis which was based on qualitative studies of the Late Ordovician brachiopod fauna, the younger and larger species of Hiscobeccus, which was one of the epicontinental brachiopod fauna of North America, evolved from the ...
Akbar Sohrabi
doaj   +1 more source

Field load tests on a Queen-post timber truss [PDF]

open access: yes, 2008
In-situ cyclic tests on a Portuguese Queen-post timber truss were performed. The main goal of the tests was to evaluate the overall behaviour of the timber truss under symmetric and nonsymmetric loading.
Branco, J.   +3 more
core  

A detailed damage investigation of an instrumented ductile reinforced concrete building following the M‐7.8 Kaikoura earthquake

open access: yesEarthquake Spectra, Volume 40, Issue 3, Page 2179-2209, August 2024.
Summarized in this article are the major findings from a detailed damage investigation of an instrumented ductile reinforced concrete moment frame building subjected to a design‐level earthquake. The building sustained widespread damage during the 2016 M‐7.8 Kaikoura earthquake and was subsequently demolished. Prior to demolition, the structural system
Mohamed Mostafa   +4 more
wiley   +1 more source

Numeric analysis of the global stiffness of group purlin-sheeting in lateral steel panels

open access: yesSemina: Ciências Exatas e Tecnológicas, 2008
This paper presents an evaluation of the behaviour of lateral panels of steel buildings starting from computational modeling using the purlin-sheeting group in the longitudinal contention.
Renato Bertolino Junior   +1 more
doaj  

Quantifying spectral albedo effects on bifacial photovoltaic module measurements and system model predictions

open access: yesProgress in Photovoltaics: Research and Applications, Volume 32, Issue 7, Page 468-480, July 2024.
This study analyzes the effect of spectral albedo on photovoltaic module measurements and system model predictions. We demonstrate how indoor photovoltaic measurements can be adjusted to account for albedo, and measure up to a 2% difference in short‐circuit current with spectral effects.
Erin M. Tonita   +5 more
wiley   +1 more source

Analysis and Design of Cold-Formed Z Purlins

open access: yesInternational Journal for Research in Applied Science and Engineering Technology, 2022
Abstract: Structures built by cold-formed segments of primary members secondary members and roof panels provide a different solution for a great variety of areas such as housing, storage, education, etc The design of cold-formed sections has obvious complexity in view of the buckling of sections vis-à-vis stress in the compression element, especially ...
openaire   +1 more source

Exhibition pavilion [PDF]

open access: yes, 2013
V bakalářské práci je vypracován návrh nosné ocelové konstrukce výstavního pavilonu o půdorysných rozměrech 30x36 m, maximální výškou 12 m, pro oblast Brno.
Zogata, Pavel
core  

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