Results 31 to 40 of about 1,183 (186)

Dispersal, source and glass chemistry of a third tephra unit within Iceland's Settlement Layer

Boreas, EarlyView.
Tephra layers may be studied to understand the dynamics and sequence of past explosive volcanism. In Iceland, the distinctive Settlement Layer (AD ~877) underlies almost all archaeological evidence for the Norse Settlement and is preserved in soils across Iceland and as cryptotephra overseas.
Conner A. G. Morison, GuÐrún Larsen, Anthony J. Newton, Andrew J. Dugmore   +3 more
wiley   +1 more source

Trans‐oceanic migration and wind utilization by Amur Falcons (Falco amurensis)

Ibis, EarlyView.
The Amur Falcon Falco amurensis performs one of the world's longest raptor migrations, involving a non‐stop crossing of the Indian Ocean of approximately 2800 km. While the existence of this route is known, the mechanistic details of wind exploitation and seasonal navigation remain to be fully elucidated.
Bernd‐Ulrich Meyburg, Rina Pretorius, Daniel Holte, Photos by B.‐U. Meyburg   +3 more
wiley   +1 more source

Joint Research on Aerodynamic Characteristics and Handling Stability of Racing Car under Different Body Attitudes

Energies, 2022
With the rapid development of FSAE, the speed of racing cars has increased year by year. As the main research content of racing cars, aerodynamics has received extensive attention from foreign teams.
Zhe Zhang, Qiang Wang, Shida Song, Chengchun Zhang, Luquan Ren, Yingchao Zhang   +5 more
doaj   +1 more source

Optimization of Venting Units to Minimize the Dimensions of Explosive Zones

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.
ABSTRACT This contribution investigates how changes of standardized venting geometries affect the EX zone extension. CFD simulations are used to explore different venting unit geometries in order to reduce the experimental effort. The optimization of the venting unit geometries is analyzed separately from the dispersion of the hydrogen–air mixture into
Nils Kaufhold, Frauke Walter, Konrad E. R. Boettcher, Norbert Kockmann   +3 more
wiley   +1 more source

On the effects of crosswinds in tandem aerodynamics:An experimental and computational study

European Journal of Mechanics - B/Fluids, 2019
Aerodynamics has been an important research aspect in cycling science, with aerodynamic apparel and equipment, athlete postures, and race strategies all taking advantage of scientific aerodynamics knowledge. Crosswinds occur when cyclists travel at a non-zero angle to the direction of the wind.
Paul Mannion, Yasin Toparlar, Eoghan Clifford, Magdalena Hajdukiewicz, Thomas Andrianne, Bert Blocken   +5 more
openaire   +1 more source

Impacts of Pasture Conversion to Sugarcane on Water Fluxes and Water Use Efficiency in the Southeastern US

GCB Bioenergy, Volume 18, Issue 9, September 2026.
Sugarcane expansion, poised to reshape the Southeastern US bioenergy landscape, has uncertain ecohydrological implications following pasture conversion. Compared with improved and semi‐native pastures, sugarcane showed more conservative water use, stronger stomatal sensitivity to atmospheric water demand, higher evaporation, and greater water‐use ...
Sneha Bandyopadhyay, Elena Blanc‐Betes, Cole Walton, Tess Rutstein, Carl J. Bernacchi, Evan H. DeLucia, Elizabeth H. Boughton, Amartya Saha, Wendy H. Yang, Caitlin E. Moore, Nuria Gomez‐Casanovas   +10 more
wiley   +1 more source

Analysis of crosswind aerodynamics for competitive hand-cycling

Journal of Wind Engineering and Industrial Aerodynamics, 2018
Competitive hand-cycling represents a unique case for cycling aerodynamics as the athletes are in a relatively aerodynamic position in comparison to traditional able-bodied cyclists. There are some aerodynamic similarities between both cycling disciplines, including wheel designs and helmets.
Paul Mannion, Yasin Toparlar, Bert Blocken, Eoghan Clifford, Thomas Andrianne, Magdalena Hajdukiewicz   +5 more
openaire   +1 more source

Geography and ‘The New’

Transactions of the Institute of British Geographers, Volume 51, Issue 3, September 2026.
ABSTRACT This Intervention reflects on the multiple, contradictory and ambivalent relations human geography has with ‘the new’. Some sort of relation with the new is an inescapable and necessary part of all practices of knowledge generation. Newness, whether it be an empirical finding, an idea, a concept or an approach, can fuel the interest, wonder ...
Ben Anderson, Katherine Brickell, David Bissell, Beth Greenhough, Harriet Hawkins, Jenny Pickerill, Nathaniel Télémaque, Tatiana Thieme   +7 more
wiley   +1 more source

Influence of Suspension Parameters on the Curve Passage Performance of Metro Vehicle under Crosswind in Mountain City

机车电传动, 2020
To investigate the influence of suspension parameters on the curve passage performance of metro vehicle under crosswind in mountain city, the targeted type-B vehicle dynamics model was established in the mountain city. The influence of the windward angle,
Yongxiang ZHU, Zhihua ZHANG, Shengyong LI   +2 more
doaj  

A trajectory-tracking controller for improving the safety and stability of four-wheel steering autonomous vehicles

Transport, 2021
To achieve anti-crosswind, anti-sideslip, and anti-rollover in trajectory-tracking for Four-Wheel Steering (4WS) autonomous vehicles, a trajectory-tracking controller based on a four-channel Active Disturbance Rejection Control (ADRC) was used to track ...
Runqiao Liu, Minxiang Wei, Nan Sang, Jianwei Wei   +3 more
doaj   +1 more source