Results 1 to 10 of about 3,677 (212)

Design and Application of Toxic and Harmful Gas Monitoring System in Fire Fighting

open access: yesSensors, 2019
In recent years, fire accidents in petrochemical plant areas and dangerous goods storage ports in China have shown a trend of frequent occurrence. Toxic and harmful gases are diffused in the scenes of these accidents, which causes great difficulties for ...
Yufeng Fan   +4 more
doaj   +3 more sources

Distribution of harmful gas and ventilation length design of high altitude long gas tunnel construction: a case study

open access: yesFrontiers in Earth Science, 2023
The air density in high altitude gas tunnel is small and the air supply is difficult. The jet tunnel ventilation is a common construction ventilation mode.
Xueqiang Zhang   +4 more
doaj   +3 more sources

Design of phononic crystal using open resonators as harmful gases sensor

open access: yesScientific Reports, 2023
This paper investigates the ability to use a finite one-dimensional phononic crystal composed of branched open resonators with a horizontal defect to detect the concentration of harmful gases such as CO2. This research investigates the impact of periodic
Zaky A. Zaky   +3 more
doaj   +1 more source

Optimizing quasi-cyclic spatially coupled LDPC codes by eliminating harmful objects

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
It is well known that some harmful objects in the Tanner graph of low-density parity-check (LDPC) codes have a negative impact on their error correction performance under iterative message-passing decoding.
Massimo Battaglioni   +4 more
doaj   +1 more source

Folk Moral Objectivism: The Case of Harmful Actions

open access: yesFrontiers in Psychology, 2021
It is controversial whether ordinary people regard beliefs about the wrongness of harmful actions as objectively correct. Our deflationary hypothesis, consistent with much of the evidence, is that people are objectivists about harmful actions that are ...
Paulo Sousa   +3 more
doaj   +1 more source

RISCOS E SEGURANÇA NO ROBLOX: COMO PROTEGER CRIANÇAS E ADOLESCENTES NO AMBIENTE DIGITAL

open access: yesBrazilian Creative Industries Journal
A crescente dataficação da sociedade expõe crianças e adolescentes a riscos em plataformas digitais interativas, como o Roblox, em função de fragilidades de segurança.
Lynn Alves, Mariona Grané
doaj   +5 more sources

A Study on the Design Space for Harm Claim Thresholds [PDF]

open access: yesProceedings of the 9th International Conference on Cognitive Radio Oriented Wireless Networks, 2014
Harm claim threshold policies will offer more flexibility in radio regulations. By defining bounds on the acceptable field strength over time and space, these policies will introduce quantitative measures to inter-system coexistence questions. How-ever, this requires tangible and sufficient means of proving claims of interference through spectrum ...
Janne Riihijärvi   +3 more
openaire   +1 more source

Beliefs about harms of cigarette smoking among Norwegian adults born from 1899 to 1969. Do variations across education, smoking status and sex mirror the decline in smoking?

open access: yesPLoS ONE, 2022
Background and aimSmoking is one of the most important causes of socioeconomic disparities in morbidity and mortality. The aim of this study was to examine if beliefs about harms of smoking differed across gender, smoking status and education among ...
Tord Finne Vedøy, Karl Erik Lund
doaj   +2 more sources

Increasing the level of environmental safety during explosive destruction of rocks in quarries

open access: yesТехнічна інженерія, 2020
The type of explosive is decisive during blasting, not only to select the network of wells and to improve the quality of rock crushing, but also to reduce the environmental impact and loss of non-metallic minerals associated with excessive rock crushing ...
O.Y. Tverda, K.К. Tkachuk
doaj   +1 more source

Shaping the Design of Smartphone-Based Interventions for Self-Harm [PDF]

open access: yesProceedings of the 2020 CHI Conference on Human Factors in Computing Systems, 2020
Self-harm is a prevalent issue amongst young people, yet it is thought around 40% will never seek professional help due to stigma surrounding it. It is generally a way of coping with emotional distress and can have a range of triggers which are highly heterogeneous to the individual.
Mahsa Honary   +6 more
openaire   +1 more source

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