Results 21 to 30 of about 71,141 (225)
Scientific Reports, 2021 Two Monterfortino helmets, recovered in the Mediterranean seabed, show unusual features with respect to the more common helmets of the same period and found in underwater environments.
Francesco Armetta +3 more
doaj +1 more source
Aerodynamic Drag Reduction on Speed Skating Helmet by Surface Structures
Applied Sciences, 2022 The aerodynamic drag for speed skating helmets with surface structures was investigated in this work by using numerical and experimental methods. Computational fluid dynamic (CFD) research was performed to analyze the detail of the flow field around the ...
Yanqing Wang +5 more
doaj +1 more source
An Approach to the Definition of the Aerodynamic Comfort of Motorcycle Helmets
Vehicles, 2021 The aim of this work is to obtain a reliable testing methodology for the characterization of the perceived aerodynamic comfort of motorcycle helmets. Attention was paid to the rider’s perception of annoying vibrations induced by wind.
Lorenzo Scappaticci +4 more
doaj +1 more source
Identifying psychological and socio-economic factors affecting motorcycle helmet use [PDF]
, 2015 Sixty percent of motorcyclist fatalities in traffic accidents of Iran are due to head injuries, but helmet use is low, despite it being a legal requirement.
Groeger, John A. +2 more
core +1 more source
Early Byzantine Baldenheim-Type Helmets in the Dnieper Region
Вестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2019 Introduction. Recent finds of Baldenheim-type helmets in the Dnieper (Klimovsk district of Bryansk region, Boldyzhsky Forest and Cherkasy region) indicate the proliferation of prestigious weapons in the territory of the Kolochin and Penkovka cultures ...
Michel Kazanski
doaj +1 more source
CPAP delivered via a helmet interface in lightly sedated patients with moderate to severe ARDS: predictors of success outside the ICU [PDF]
Jornal Brasileiro de PneumologiaObjective: This study aimed to describe the outcomes and explore predictors of intubation and mortality in patients with ARDS due to COVID-19 treated with CPAP delivered via a helmet interface and light sedation. Methods: This was a retrospective cohort
Isabella de Melo Matos +7 more
doaj +1 more source
Analysis of bicycle helmet damage visibility for concussion-threshold impacts
International Biomechanics, 2021 Any helmet involved in an accident should be replaced, regardless of appearance after impact. However, consumer compliance and interpretation of this recommendation is unclear, for which there is additional ambiguity for lesser impacts.
Ana Cachau-Hansgardh +3 more
doaj +1 more source
Helmet Laws, Helmet Use, and Bicycle Ridership [PDF]
Journal of Adolescent Health, 2016 To assess bicycle helmet laws' effect on helmet and bicycle use among U.S. high school students in urban jurisdictions.Log-binomial models were fit to Youth Risk Behavior Survey data from five jurisdictions. Adjusted helmet and bicycle use proportions were calculated with post-regression marginal effects.
openaire +2 more sources
Sports, 2021 When in public, faith-based mandates require practising Sikh men to wear a turban which may not be covered by hats or caps. This makes it impossible for practising Sikhs to wear helmets and other protective headwear, mandatory in many countries and ...
Dirk H. R. Spennemann
doaj +1 more source
Automatic Number Plate Detection for Motorcyclists Riding Without Helmet [PDF]
E3S Web of Conferences, 2023 The increased usage of motorcycles in recent times has resulted in a rise of road accidents and injuries, with the absence of helmets being a major contributing factor.
Kiran Kumar Mamidi +5 more
doaj +1 more source