Results 21 to 30 of about 4,108 (222)

The Traveling Firefighter Problem [PDF]

open access: yes, 2021
We introduce the $L_p$ Traveling Salesman Problem ($L_p$-TSP), given by an origin, a set of destinations, and underlying distances. The objective is to schedule a destination visit sequence for a traveler of unit speed to minimize the Minkowski $p$-norm of the resulting vector of visit/service times.
Majid Farhadi   +2 more
openaire   +2 more sources

Effects of Law Enforcement Load Carriage Systems on Muscle Activity and Coordination during Walking: An Exploratory Study

open access: yesSensors, 2023
Law enforcement officers (LEOs) commonly wear a duty belt (DB) or tactical vest (TV) and from prior findings, these forms of load carriage (LC) likely alter muscular activity.
Joel Martin   +2 more
doaj   +1 more source

Effect of the Law Enforcement Duty Belt on Muscle Activation during Hip Hinging Movements in Young, Healthy Adults

open access: yesJournal of Functional Morphology and Kinesiology, 2023
Sixty percent of all law enforcement officers (LEOs) experience low back pain (LBP), with the LEO duty belt (LEODB) commonly reported to be a contributing factor. The primary purpose of the study was to investigate the LEODB’s effect on muscular activity
James W. Kearney   +4 more
doaj   +1 more source

A Classification of US Wildland Firefighter Entrapments Based on Coincident Fuels, Weather, and Topography

open access: yesFire, 2019
Previous attempts to identify the environmental factors associated with firefighter entrapments in the United States have suggested that there are several common denominators.
Wesley G. Page   +3 more
doaj   +1 more source

Online Firefighting on Trees [PDF]

open access: yes, 2018
In the Firefighter problem, introduced by Hartnell in 1995, a fire spreads through a graph while a player chooses which vertices to protect in order to contain it. In this paper, we focus on the case of trees and we consider as well the Fractional Firefighter game where the amount of protection allocated to a vertex lies between 0 and 1.
Coupechoux, Pierre   +3 more
openaire   +2 more sources

Energy Cost of the Trondheim Firefighter Test for Experienced Firefighters [PDF]

open access: yesInternational Journal of Occupational Safety and Ergonomics, 2013
The aim of this study was to measure aerobic demands of fire fighting activities including exercise in the heat.Twenty-two experienced firefighters performed the Trondheim test simulating fire fighting tasks including work in the heat. Maximal oxygen uptake (VO2 max), heart rate (HR) and ventilation were recorded continuously.
Erna, von Heimburg, Jon Ingulf, Medbø
openaire   +2 more sources

Post-traumatic stress disorder and depressive symptoms among firefighters: a network analysis

open access: yesFrontiers in Public Health, 2023
BackgroundFirefighters, as first responders with a high risk of occupational exposure to traumatic events and heavy working stress, have a high prevalence of PTSD symptoms and depressive symptoms.
Peng Cheng   +6 more
doaj   +1 more source

Sizing Firefighters [PDF]

open access: yesHuman Factors: The Journal of the Human Factors and Ergonomics Society, 2014
Objective: This article reports new anthropometric information of U.S. firefighters for fire apparatus design applications (Study 1) and presents a data method to assist in firefighter anthropometric data usage for research-to-practice propositions (Study 2).
Hongwei Hsiao   +5 more
openaire   +2 more sources

Maximizing vertex rescue: investigating the firefighter problem with edge subdivision

open access: yesAKCE International Journal of Graphs and Combinatorics
The firefighter problem is a game played on a connected graph where a fire breaks out at a vertex. In each round, a firefighter chooses a vertex to protect, and the fire then spreads to all unprotected neighbors of the burning vertex.
Chutchawon Weeranukunjit   +1 more
doaj   +1 more source

Geometric Firefighting in the Half-Plane [PDF]

open access: yesComputational Geometry, 2019
15 pages, 10 figures, pre-print of an article published in WADS ...
Sang-Sub Kim 0003   +4 more
openaire   +2 more sources

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