Results 61 to 70 of about 2,771 (227)

Influence of natural fibers on physical, mechanical, and fire‐resistant properties of microconcrete

open access: yesStructural Concrete, EarlyView.
Abstract This study examined the influence of natural fibers on the physical, mechanical, and fire‐resistant properties of microconcrete, in comparison with conventional polypropylene fibers used in cement composites. The fibers were characterized by FTIR and TGA/DSC to assess their composition and thermal stability, and FTIR was also performed after ...
Ivanka Netinger Grubeša   +5 more
wiley   +1 more source

Passive seismic interferometry by multidimensional deconvolution

open access: yesGeophysics, 2008
Abstract We introduce seismic interferometry of passive data by multidimensional deconvolution (MDD) as an alternative to the crosscorrelation method. Interferometry by MDD has the potential to correct for the effects of source irregularity, assuming the first arrival can be separated from the full response. MDD applications can range
Wapenaar, C.P.A. (author)   +2 more
openaire   +5 more sources

Effective axial strength of laterally strengthened RC pier heads with post‐tensioning method

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the structural performance enhancement of reinforced concrete (RC) pier heads laterally strengthened with unbonded post‐tensioning (PT) to accommodate increased design loads following a deck replacement of an existing railway bridge.
Yujae Seo   +3 more
wiley   +1 more source

Pickin' up good vibrations: a systematic review of footfall detection and analysis in the realm of wildlife surveying

open access: yesWildlife Biology, EarlyView.
Exploration of new wildlife surveying methodologies that leverage advances in sensor technology and machine learning has led to tentative research into the application of seismology techniques. This, most commonly, involves the deployment of a footfall trap – a seismic sensor and data logger customised for wildlife footfall.
Benjamin J. Blackledge   +4 more
wiley   +1 more source

Critical Research Spaces as Scholarship: an Ethnography Lab as an Apparatus for the Experimental, the Imaginary, and the Relational

open access: yesAmerican Anthropologist, EarlyView.
ABSTRACT The creation of critical research spaces, such as ethnography labs, studios, and other collaborative research environments, requires attention and attunement in anthropology to focus on the kinds of imaginative and generative spaces where creative ethnographic research can unfold as scholarship.
Fiona P. McDonald
wiley   +1 more source

Full Waveform Inversion of Irregularly Sampled Passive Seismic Data Based on Robust Multi-Dimensional Deconvolution

open access: yesJournal of Marine Science and Engineering
Full waveform inversion (FWI) comprehensively utilizes phase and amplitude information of seismic waves to obtain high-resolution subsurface medium parameter models, applicable to both active-source and passive-source seismic data. Passive-source seismic
Donghao Zhang   +4 more
doaj   +1 more source

Thorncliffe Formation: A proglacial to subglacial lacustrine basin sequence, Greater Toronto Region, Canada

open access: yesBoreas, EarlyView.
Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe   +3 more
wiley   +1 more source

Behind the Curtain: COVID‐19 as a Lens to Precarity in Museum Labor

open access: yesCurator: The Museum Journal, EarlyView.
ABSTRACT Using in‐depth interviews with emerging and early professional museum workers in New Orleans, Louisiana, this article expands on scholarship around the perceived and actual value of nonprofit labor. It adds qualitative support to the argument that museum labor is real labor—open to exploitation and abuse while constantly negotiated internally ...
Miriam Taylor Fair
wiley   +1 more source

Numerical Method for Computing Seismic Slip-Line Fields and Earth Pressure Coefficients in Cohesionless Backfills [PDF]

open access: yesLithosphere
This study introduced a novel numerical method for calculating seismic slip-line fields and earth pressure coefficients in cohesionless backfills with an inclined and rough retaining wall. By integrating the triangular slice method with the pseudo-static
Huanhuan Li   +4 more
doaj   +1 more source

Space-time monitoring of groundwater fluctuations with passive seismic interferometry. [PDF]

open access: yesNat Commun, 2022
Mao S   +3 more
europepmc   +1 more source

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