Results 91 to 100 of about 579,495 (286)

Experimental Research on Microstructure and Physical-Mechanical Properties of Expansive Soil Stabilized with Fly Ash, Sand, and Basalt Fiber

open access: yesAdvances in Materials Science and Engineering, 2018
Expansive soil is a source of risk to the foundations or subgrade engineering. Stabilization of expansive soil is imperative for practical engineering.
Qin-yong Ma, Zi-ming Cao, Pu Yuan
doaj   +1 more source

Nonlinear dynamics of sand banks and sand waves [PDF]

open access: yes, 2000
Sand banks and sand waves are two types of sand structures that are commonly observed on an off-shore sea bed. We describe the formation of these features using the equations of the fluid motion coupled with the mass conservation law for the sediment ...
Newell, Alan C., Komarova, Natalia L.
core   +1 more source

Impact of Fiber Treatments on the Properties and Aging Behavior of a Bio‐Composite Characterized From Nano‐ to Macro‐Scale

open access: yesPolymer Composites, EarlyView.
From Posidonia oceanica seagrass fibers to sustainable bio‐composites: the role of alkaline treatment in composite performance and durability. ABSTRACT The valorization of the abundant marine residue Posidonia oceanica (PO) fibers, as a filler in a bio‐based epoxy matrix was investigated.
Mahamat Saleh Elhadj Yacoub   +4 more
wiley   +1 more source

Combined Effects of Thermal Cycling Aging and Reinforcement Content on the Ball‐On‐Disk Wear of Additively Manufactured Polylactic Acid Composites

open access: yesPolymer Composites, EarlyView.
Thermal Aging and Tribological Tests of Additive Manufactured PLA Composites. ABSTRACT This study focuses on the additive manufacturing of pure polylactic acid (PLA) specimens and milled glass fiber (GF)‐filled PLA composites under thermal cycling aging and wear tests. Wear tracks have been analyzed via 3D optical profiling and SEM imaging.
Sinan Fidan   +5 more
wiley   +1 more source

Insecticide Susceptibility Status of Wild-Caught Sand Fly Populations Collected from Two Leishmaniasis Endemic Areas in Western Turkey

open access: yesJournal of Arthropod-Borne Diseases, 2017
Background: In Turkey, vector control programs are mainly based on indoor residual spraying with pyre­throids against mosquitoes. No special control program is available for sand flies.
Mehmet Karakus   +2 more
doaj  

Niche‐tracking as a collecting method: Habitat‐targeted search strategies for taxon‐focused botany

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity science depends on more than collecting plants—it depends on how we search for them. Although GPS and digital maps have transformed fieldwork, they can also encourage repeated visits to the same easy‐to‐access sites, leaving other habitats and populations unknown to science.
Lucas C. Marinho   +2 more
wiley   +1 more source

Increasing urban flash flood risk attributable to both climate and development

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
A new event impact attribution methodology that combines convection‐permitting climate model data with flood inundation modelling was used for a five‐hour flash‐flooding event in the suburbs of Leeds in 2014. The results show increased urban flood extent due to both climate change (+16%) and increased urbanisation (+29%).
Daniel F. Cotterill   +5 more
wiley   +1 more source

Riparian Failure: Damming and Flow Stabilization Exclude Cottonwood Colonization Along a Dryland River

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT The Marias River flows from Glacier National Park through northcentral Montana, and into the Missouri River. Annual flows gradually declined from 1902 to 2024 (~3.2%/decade) and the 1952 Tiber Dam and Lake Elwell reservoir were operated to attenuate peak flows and stabilize downstream flows year‐round.
Stewart B. Rood, Lori A. Goater
wiley   +1 more source

Study on Axial Compression Performance of Aeolian Sand Concrete

open access: yes工程科学与技术, 2020
Mechanical properties of aeolian sand concrete, are important indicators to characterize the performance of aeolian sand concrete. Domestic and foreign scholars have extensively studied the cubic compressive strength, splitting tensile strength and ...
Wei DONG   +3 more
doaj  

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao   +10 more
wiley   +1 more source

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