Results 61 to 70 of about 108,598 (292)
Deep Underground Science and Engineering, EarlyView.This study proposes an exponentially‐constrained Gaussian mixture model (EcGMM) to quantify vertical fracture heterogeneity in stratified roof strata. The model integrates a piecewise exponential decay term capturing global stress dissipation with Gaussian components representing localized fracture intensification at lithological interfaces.
Huiqing Yuan +5 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu +4 more
wiley +1 more source
, 1958 Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a news story about a Tarrant County investigation into unexplained spending overages on the transport of gravel by one of the county's precinct ...
WBAP-TV (Television station : Fort Worth, Tex.)
core
The development of a cloud-based information system for gravel road maintenance
, 2022 The gravel road network is an essential function for rural residents and entrepreneurs. Traditional maintenance of gravel roads is well-functioning but provides a relatively high maintenance cost per unit length of the road.
Kans, Mirka, +2 more
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Microclimate mediates the strength and direction of avian biotic interactions
Ecography, EarlyView.Theory predicts that the strength and direction of species interactions can shift from being competitive in benign environments toward being facilitative in stressful environments. However, the environmental context dependency of species interactions has rarely been tested in animal communities.
Sarah J. K. Frey +6 more
wiley +1 more source
Compaction Characteristics and Mechanical Response of Gravel–Glass–Rubber Mixtures
Applied SciencesFrom a geotechnical engineering viewpoint, recycling and reuse of crushed glass and tire rubber can significantly help reduce the demand for natural resources (i.e., sand and gravel aggregates).
Gabriele Chiaro, Arjun Murali, Sean Rees
doaj +1 more source
Interactions between coarse sediment transfer, channel change, river engineering and flood risk in an upland gravel-bed river [PDF]
, 2008 Coarse sediment transfer in upland gravel-bed river systems is often neglected in the design and operation of river management schemes. Yet, it is increasingly attributed to problems within upland environments including bank erosion and enhanced flood ...
Waterhouse, Emma Kate
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Rising, falling, stalling: complex biodiversity trajectories in English rivers
Ecography, EarlyView.Freshwater ecosystems face intense anthropogenic pressures. Yet in parts of Europe, including the UK, studies have documented widespread increases in macroinvertebrate diversity following investments to improve water quality. More recent analyses, however, suggest that these gains have slowed, plateaued, or even reversed. Despite increasing recognition
Mansi Mungee +5 more
wiley +1 more source
Turbidity removal: Gravel and charcoal as roughing filtration media
South African Journal of Science, 2010 Roughing filtration is an important pre-treatment process for wastewater, because it efficiently separates fine solid particles over prolonged periods, without the addition of chemicals.
Onyeka Nkwonta +4 more
doaj