Results 141 to 150 of about 76,872 (306)

Vegetation on the move: elevational shifts and greening dynamics across the Himalayan alpine zone

Ecography, EarlyView.
This study investigates alpine ‘vegetation line' (the upper limit of continuous plant community) dynamics in the Himalayan alpine zone (HAZ) over a 24‐year timescale (1999–2022) using maximum NDVI products derived from Landsat series datasets, adjusted for sampling bias using phenological modelling.
Ruolin Leng, Stephan Harrison, Dominic Fawcett, Achyut Tiwari, Mike Harrison, Karen Anderson   +5 more
wiley   +1 more source

Improving Conductivity of Reduced Infill 3D-Printed Electrodes Through Tuning Infill Pattern and Orientation

International Journal of Electrochemistry
3D printing has been shown to be a highly effective approach for the reproducible manufacturing of composite carbon electrodes. Various printing parameters have been effectively shown to enhance the electrochemical performance of 3D-printed electrodes ...
Rora Wisby, Ricoveer Singh Shergill, Chloe Miller, Bhavik Anil Patel   +3 more
doaj   +1 more source

Spatial Variations in Methane Content and Their Main Controlling Factors of the Deep‐Buried Coalbed in the Nalinhe–Hengshan Area, Ordos Basin

Energy Science &Engineering, EarlyView.
Ash yield is the primary geological factor controlling the spatial variations in the total gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin. However, porosity dominates the differential enrichment of the free gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin.
Shi Yunhe, Wang Kangle, Wang Huaichang, Wang Yufei, Zhang Hui, Cao Jingjing, Yin Liangliang, Hu Xinyou, Liang Chao, Liu Mina   +9 more
wiley   +1 more source

Atmospheric River Event Frequency Is the Principal Moisture Driver for Radial Growth of High‐Elevation Southern California, USA Conifers, 1658–2020 CE

International Journal of Climatology, EarlyView.
Conifers growing in high‐elevation alpine environments in the mountains of Southern California, USA, are highly responsive to atmospheric river (AR) events, which typically produce heavy precipitation over 1–3 days. However, it is the frequency of the AR events, not their magnitude nor annual precipitation totals, that most affects the radial growth of
Paul A. Knapp, Avery A. Catherwood, Tyler J. Mitchell   +2 more
wiley   +1 more source

Multi‐Country‐Multi‐City Characterisation of Heat Stress and Exposure in Africa

International Journal of Climatology, EarlyView.
This study provides the first continent‐wide, grid‐specific assessment of heat stress trends in Africa, revealing a sharp rise in multi‐scale extreme heat episodes and shifting population exposure. Findings highlight urgent implications for urban planning and climate adaptation.
Tobi Eniolu Morakinyo, Oluwafemi E. Adeyeri, Mojolaoluwa Toluwalase Daramola, Bobde Vishal, Kazeem Abiodun Ishola, Oluwafemi Benjamin Obe, Emmanuel Olaoluwa Eresanya, Akintomide Afolayan Akinsanola, Charles Onyutha, Brian Odhiambo Ayugi, Patricia Nying'uro   +10 more
wiley   +1 more source

Non‐Stationary Dry‐Spell Hazard Probabilities for Spain

International Journal of Climatology, EarlyView.
This study assesses long‐term changes in dry‐spell hazard probabilities across Spain (1961–2024) using a novel non‐stationary extreme value framework applied to daily precipitation records from a dense observational network. Results show that dry‐spell duration and associated return levels are dominantly stationary, with non‐stationary models providing
S. M. Vicente‐Serrano, S. Beguería, A. Royo, A. El Kenawy, M. Franquesa, A. Halifa‐Marin, M. Adell‐Michavila, A. Crespillo, D. Pérez‐Pajuelo, F. Domínguez‐Castro, C. Azorin‐Molina, L. Gimeno, R. Nieto, L. Gimeno‐Sotelo   +13 more
wiley   +1 more source

The Glacial Legacy of the Geneva Basin: Morphology and implications of an intricate tunnel valley system revealed from 3D seismic data

Journal of Quaternary Science, EarlyView.
ABSTRACT Like other perialpine basins and glaciated margins, the Geneva Basin in SW Switzerland is characterised by buried tunnel valleys, which are elongated incisions widely attributed to subglacial meltwater erosion beneath continental ice sheets. However, an inclusive understanding of the geological control on the evolution of the glacial landscape
Ovie Emmanuel Eruteya, Emna Meftah, Andrea Moscariello   +2 more
wiley   +1 more source

The Influence of Infill on the Tensile Strength of some Mini‐Test Specimens Manufactured by 3D Printing From PLA

Macromolecular Symposia, EarlyView.
ABSTRACT In industrial practice, situations may be encountered where small parts manufactured by 3D printing from polymeric materials are subjected to tensile stresses. Since standard tensile testing machines are not recommended for performing tests for values less than 10% of the machine's maximum nominal force, it is necessary to design and build a ...
Vlada Țisari, Alexandra‐Anamaria Spiridon, Adinda Hairil, Roxana‐Gabriela Hobjâlă, Cosmin‐Gabriel Grădinaru, Gheorghe Nagîț, Alexei Toca, Laurențiu Slătineanu   +7 more
wiley   +1 more source

3D-Printed Reinforcers for Shelves in Panel Furniture Fabricated from Polyamide Filament

BioResources
To address the issue of bending deformation in panel furniture shelves under prolonged loading, this study developed a 3D-printed shelf reinforcer using polyamide 6 (PA6) filament via fused filament fabrication (FFF) technology.
Chen Wang, Hanyi Huang, Jiahao Yu
doaj  

In-Vitro Evaluations of Shape Memory Polymer Scaffolds With Tunable Architecture for the Endovascular Embolization of Unruptured Intracranial Aneurysms. [PDF]

J Biomech Eng
Cabaniss TL, Colby G, Liu Y, Lee H, Bohnstedt BN, Lee CH.   +5 more
europepmc   +1 more source