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Evaluation of Individual and Environmental Sound Pressure Level and Drawing Noise-Isosonic Maps Using Surfer V.14 and Noise at Work V.5.0

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Sound & Vibration 2021年第2期55卷 163-171页

作者： sajad Zare Rasoul Hemmatjo Hossein ElahiShirvan Ashkan jafari Malekabad Mansour Ziaei Farshad Nadri Department of Occupational Health School of Public HealthKerman University of Medical SciencesKermanIran Department of Occupational Health School of Public HealthUrmia University of Medical SciencesUrmiaIra Student Research Committee Kerman University of Medical SciencesKermanIran Department of Occupational Health School of Public HealthBushehr University of Medical SciencesBushehrIran Department of Occupational Health School of Public HealthKermanshah University of Medical SciencesKermanshahIran

Noise pollution is one of the common physical harmful factors in many work *** current study aimed to assess personal and environmental sound pressure level and project the sound-Isosonic map in one of the Razavi Khorasan Paste manufacture using Surfer V.14 and Noise at work *** cross-sectional,descrip-tive study is analytical that was conducted in 2018 in the Paste factory that contains Canister,production and Brewing *** ISO 9612:2009,Casella Cel-320 was used to measure personal sound pressure level,while CEL-450 sound level meter(manufactured by Casella-Cel,the UK)was employed to assess environmental sound pressure *** analyzes was done using SPSS V.18 and Linear Regression *** sound-isosonic maps were projected using Surfer V.14 and Noise at work *** results of assessing personal sound pressure level indicated that the highest received dose(172.21%)and personal equivalent sound level(87.36 dBA)were recorded for workers in the Canister *** to results of measuring of the environmental sound pressure level,out of 16 measurement stations in this unit,overall 87.5%were regarded as danger and caution *** lowest and highest sound pressure levels in this units were 61 dBA and 92 dBA that belong to Brewing and Canister units *** indicate Over 75%of the Canister and production units had a sound pressure level greater than 85 dBA and these two units were regarded as the most dangerous area in terms of noise *** is there-fore necessary to implement noise control measures,apply hearing protection program and auditory tests among workers in these units.

关键词： Sound pressure level personal sound environmental sound sound map isosonic map surfer noise at work

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Nano-design of ultra-efficient reversible block based on quantum-dot cellular automata

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Frontiers of Information Technology & Electronic Engineering 2023年第3期24卷 447-456页

作者： Seyed sajad AHMADPOUR Nima jafari NAVIMIPOUR Mohammad MOSLEH Senay YALCIN Department of Computer Engineering Faculty of Engineering and Natural SciencesKadir Has UniversityIstanbul 34083Türkiye Materials and Energy Research Center Dezful BranchIslamic Azad UniversityDezful ***Iran Department of Computer Engineering Nisantasi UniversityIstanbul 34485Türkiye

Reversible logic has recently gained significant interest due to its inherent ability to reduce energy dissipation,which is the primary need for low-power digital *** of the newest areas of relevant study is reversible logic,which has applications in many areas,including nanotechnology,DNA computing,quantum computing,fault tolerance,and low-power complementary metal-oxide-semiconductor(CMOS).An electrical circuit is classified as reversible if it has an equal number of inputs and outputs,and a one-to-one relationship.A reversible circuit is conservative if the EXOR of the inputs and the EXOR of the outputs are *** addition,quantum-dot cellular automata(QCA)is one of the state-of-the-art approaches that can be used as an alternative to traditional ***,we propose an efficient conservative gate with low power demand and high speed in this ***,we present a reversible gate called ANG(Ahmadpour Navimipour Gate).Then,two non-resistant QCA ANG and reversible fault-tolerant ANG structures are implemented in QCA *** suggested reversible gate is realized through the Miller ***,reversible fault-tolerant ANG is implemented by the 2DW clocking ***,the power consumption of the suggested ANG is assessed under different energy ranges(0.5Ek,1.0Ek,and 1.5Ek).Simulations of the structures and analysis of their power consumption are performed using QCADesigner 2.0.03 and QCAPro *** proposed gate shows great improvements compared to recent designs.

关键词： Nanotechnology Reversible logic Energy dissipation Quantum-dot cellular automata(QCA) Reversible gate Miller algorithm

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