Results 31 to 40 of about 51,276 (280)

Modelling smoke dynamics and hazards of smouldering fire in complex large space building

open access: yesEngineering Applications of Computational Fluid Mechanics
Smouldering fires produce significant quantities of toxic smoke and gases that are responsible for severe casualties while rarely considered in building fire safety design.
Wai Kit Cheung   +4 more
doaj   +1 more source

Safe evacuation framework with intelligent dynamic exit sign system and demonstration in tunnel fire

open access: yesJournal of Safety Science and Resilience
Emergency exit sign systems guide occupants to safety, but they may fail in fires when smoke blocks routes. This study introduces an Intelligent Dynamic Exit Sign (IDES) system, integrating a fire-detection sensor network with dynamic sign patterns ...
Ho Yin Wong   +5 more
doaj   +1 more source

Multisensor Fire Detection System Mobile Robot as a Learning Media in Firefighting Robotic Course

open access: yesJournal of Innovation in Educational and Cultural Research, 2023
Firefighting Robotic technology has been used for a long time to achieve aviation safety and security goals. The research is deemed necessary because of some related issues: 1) A pressing need for lecturers and students to have access to learning media ...
Direstu Amalia   +5 more
doaj   +1 more source

Applications of Bee Colony Optimization [PDF]

open access: yes, 2013
Many computationally difficult problems are attacked using non-exact algorithms, such as approximation algorithms and heuristics. This thesis investigates an ex- ample of the latter, Bee Colony Optimization, on both an established optimization problem in
CHALK, AIDAN BERNARD GERARD
core  

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Examination of Strenuous Activity Preceding Cardiac Death during Firefighting Duties

open access: yesSafety, 2019
Sudden cardiac death accounts for approximately 45% of duty-related fatalities among United States firefighters. Strenuous physical exertion is recognized as a trigger of sudden cardiac events.
Jeannie M. Haller, Denise L. Smith
doaj   +1 more source

Organizing for Emergencies - Issues in Wildfire Fighting in Croatia [PDF]

open access: yesInterdisciplinary Description of Complex Systems, 2015
Croatia's accession to the European Union implies inevitable changes in the national emergency management system. New requirements for adjustment in accordance with the EU standards and practices also apply to the fire-services organization.
Robert Fabac, Davor Đalog, Vinko Zebić
doaj   +1 more source

PFOS Disrupts Oocyte Maturation and Early Embryonic Development via Ovarian FOXK1 O‐GlcNAcylation in Mice

open access: yesAdvanced Science, EarlyView.
Perfluorooctane sulfonate (PFOS) exposure disrupts oocyte maturation and early embryonic development. This study elucidates the mechanism by which enhanced O‐GlcNAcylation of FOXK1 underlies the PFOS‐induced reduction of progesterone levels in granulosa cells and the disturbance of follicular microenvironment.
Shuwen Han   +16 more
wiley   +1 more source

Physiological Responses to Firefighting in Extreme Temperatures Do Not Compare to Firefighting in Temperate Conditions

open access: yesFrontiers in Physiology, 2017
Purpose: The aim of this study was to examine physiological responses to two different simulated firefighting exercises: a firefighting exercise with flashovers, smoke, poor visibility and extreme temperatures (300°) in a burning container and a standard
Stephanie Windisch   +4 more
doaj   +1 more source

The effect of practical cooling strategies on physiological response and cognitive function during simulated firefighting tasks in a smoke-diving room [PDF]

open access: yesHealth Promotion Perspectives, 2017
Background: Firefighters often perform multiple emergency tasks during firefighting and life-saving operations under unknown and unpredictable conditions in hot and hostile environments.
Rasoul Hemmatjo   +4 more
doaj   +1 more source

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