Open Journal of Safety Science and Technology最新文献_第9页

Quantitative Risk Assessment in Iran’s Natural Gas Distribution Network 伊朗天然气分销网络的定量风险评估

Open Journal of Safety Science and Technology Pub Date : 2014-03-11 DOI: 10.4236/OJSST.2014.41008

Payam Amir-Heidari, Mehrzad Ebrahemzadih, H. Farahani, Jamshid Khoubi

{"title":"Quantitative Risk Assessment in Iran’s Natural Gas Distribution Network","authors":"Payam Amir-Heidari, Mehrzad Ebrahemzadih, H. Farahani, Jamshid Khoubi","doi":"10.4236/OJSST.2014.41008","DOIUrl":"https://doi.org/10.4236/OJSST.2014.41008","url":null,"abstract":"Natural gas (NG) is one of the widely used domestic fuels in most of the countries, and \u0000because of economical and environmental advantages, its consumption is \u0000continuously increasing. As a result, complex piping systems are being \u0000installed to transport and distribute the gas for end users. Pipelines carrying \u0000NG are a significant source of hazard for their adjacent society. The risk of \u0000this hazard could be high especially in distribution network and urban areas \u0000where the population density is high. The common causes of accident in NG \u0000distribution network are: third party interference, corrosion, fatigue, stress \u0000corrosion cracking (SCC), etc. Accident in network leads to leakage and release of NG and consequent injuries and \u0000losses. To prevent these adverse outcomes, the risks should be identified and \u0000assessed carefully, so that they can be controlled and managed properly. \u0000In this work, risk assessment of NG distribution pipelines was surveyed and quantitative methods were recommended for assessing the individual and societal risks of \u0000distribution network.","PeriodicalId":183634,"journal":{"name":"Open Journal of Safety Science and Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122192681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

The Metro Project Construction Safety Risk Managing System of GMC 地铁工程建设安全风险管理系统

Open Journal of Safety Science and Technology Pub Date : 2014-03-11 DOI: 10.4236/OJSST.2014.41005

Guangwu Liu, F. Luo, G. Zeng

引用次数: 5

Computational Model of Successful Mobilization of Voluntary Firefighters 成功动员志愿消防员的计算模型

Open Journal of Safety Science and Technology Pub Date : 2014-03-11 DOI: 10.4236/OJSST.2014.41006

J. Šrekl

引用次数: 0

Design and Development of a Comprehensive Software for Risk Management of Pipelines Carrying Natural Gas: Conceptual Design 天然气管道风险管理综合软件的设计与开发:概念设计

Open Journal of Safety Science and Technology Pub Date : 2014-03-11 DOI: 10.4236/OJSST.2014.41002

Payam Amir-Heidari, Mehrzad Ebrahemzadih, Omid Giahi

引用次数: 0

Risk Management in Laboratory Quality Control of Pesticides 农药实验室质量控制中的风险管理

Open Journal of Safety Science and Technology Pub Date : 2014-03-11 DOI: 10.4236/OJSST.2014.41001

R. Prisco, Vera Lúcia Tedeschi Savoy

引用次数: 2

Modeling Accidents on Mashhad Urban Highways 马什哈德城市公路事故模拟

Open Journal of Safety Science and Technology Pub Date : 2014-03-01 DOI: 10.4236/OJSST.2014.41004

E. Ayati, E. Abbasi

{"title":"Modeling Accidents on Mashhad Urban Highways","authors":"E. Ayati, E. Abbasi","doi":"10.4236/OJSST.2014.41004","DOIUrl":"https://doi.org/10.4236/OJSST.2014.41004","url":null,"abstract":"In recent years, numerous researches have been carried out with purpose of predicting motor vehicle crashes on transportation facilities as freeways and urban or rural highways. Accident process can be modeled successfully with assuming a dual-state data-generating process. Based on this assumption, road components like intersections or road segments have two states of perfectly safe and unsafe. Zero-inflated regression models are applied to model accidents usually in cases of preponderance of excess zero data in crash data. We handle in this research, the investigation into effective factors on frequency and severity of accidents on urban highways and use crash data of Mash had-Iran urban highways as a case study. We use in this study, the Poisson, Negative binomial, Zero-inflated Poisson and Zero-inflated Negative binomial regression models for modeling accidents, and traffic flow and road geometry related variables as in dependent variables of models. In addition to identifying effective factors on crash occurrence probability, we deal with comparison of models, evaluate and prove the efficiency of Zero-inflated regression models against traditional Poisson and Negative binomial models.","PeriodicalId":183634,"journal":{"name":"Open Journal of Safety Science and Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124718620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Introduction of Innovative Equipment in Mining: Impact on Occupational Health and Safety 在采矿中引进创新设备:对职业健康和安全的影响

Open Journal of Safety Science and Technology Pub Date : 2014-03-01 DOI: 10.4236/OJSST.2014.41007

Bryan Boudreau-Trudel, S. Nadeau, K. Zaras, I. Deschamps

{"title":"Introduction of Innovative Equipment in Mining: Impact on Occupational Health and Safety","authors":"Bryan Boudreau-Trudel, S. Nadeau, K. Zaras, I. Deschamps","doi":"10.4236/OJSST.2014.41007","DOIUrl":"https://doi.org/10.4236/OJSST.2014.41007","url":null,"abstract":"Occupational health and safety in mining has clearly improved in developed countries over the past twenty years, but accidents and illness still occur with unacceptable frequency. The arrival of new mining equipment, bigger, more powerful and complex and requiring a higher skill level appears also to increase certain specific risks of accident and work-related illness. The objective of this paper is to examine the impact of new equipment on occupational health and safety in underground mining. The injury rate associated with eight equipment introduction projects was examined. The results show clearly that the introduction of new equipment with technological innovations does not automatically reduce the injury rate. The new equipment may even generate a higher injury rate than the equipment it replaced. Ergonomic deficiencies were noted in some of the new equipment. We suggest that future research focus on identifying the mechanisms and conditions that determine injury rate following the acquisition of innovative as means of improving occupational health and safety in mining. Successful implementation of new mining equipment appears to depend on the specific conditions of use.","PeriodicalId":183634,"journal":{"name":"Open Journal of Safety Science and Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133605527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Risk Assessment Methodology to Support Shutdown Plant Decision 支持关闭工厂决策的风险评估方法

Open Journal of Safety Science and Technology Pub Date : 2013-12-13 DOI: 10.4236/OJSST.2013.34015

E. Calixto, C. D. Moraes, Cid Atusi Outi, W. D. Santos

{"title":"Risk Assessment Methodology to Support Shutdown Plant Decision","authors":"E. Calixto, C. D. Moraes, Cid Atusi Outi, W. D. Santos","doi":"10.4236/OJSST.2013.34015","DOIUrl":"https://doi.org/10.4236/OJSST.2013.34015","url":null,"abstract":"Nowadays one of the most important decisions in safety issues in \u0000Brazilian Oil and Gas industry is that it’s necessary to shut down \u0000plant because one specific failure or required maintenance in protection system makes influence on risk level. Most of time, experienced operators make decisions based on their background despite carrying out a risk analysis to support \u0000their decision. Therefore in so many cases, refinery plants work on \u0000catastrophic risk level due to subjective decisions. In order to \u0000improve the operator decision, a specific methodology was established to apply \u0000risk assessment using PRA (Preliminary Risk Analysis), LOPA (Layer of \u0000Protection Analysis) and FTA (Fault Tree Analysis) in order to check risk level \u0000or layer of protection availability. By this way, as the first step, the \u0000Preliminary Risk Analysis will be carried out in order to qualify risk and \u0000mainly define consequences severity. The second step will carry out the LOPA in \u0000order to find out the failure probability of all layers of protection and \u0000without one of those layers of protection which requires maintenance or \u0000even failure. In addition, when is necessary to check that contingency \u0000systems availability FTA will be carried out? In the first \u0000case, it is possible to substitute the layer of protection for another in order to keep risk on acceptable level. In the second case, it is necessary to \u0000check if contingency system is available and assess if consequence gets worse \u0000or keeps on the same level. In both cases, the final risk will be assessed \u0000and compared with the previous one defined on PRA. In case of risk, it is \u0000unacceptable that the final decision will shut down plant. The \u0000refinery study case will be shown as an instance of such methodology.","PeriodicalId":183634,"journal":{"name":"Open Journal of Safety Science and Technology","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134255931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Numerical Modeling of the Thermal Behavior of Corrosion in Conduit in Transient Mode 管道瞬态腐蚀热行为的数值模拟

Open Journal of Safety Science and Technology Pub Date : 2013-12-13 DOI: 10.4236/OJSST.2013.34014

N. Laaidi, S. Belattar

引用次数: 0

Modeling of an Organizational Environment by System Dynamics and Fuzzy Logic 基于系统动力学和模糊逻辑的组织环境建模

Open Journal of Safety Science and Technology Pub Date : 2013-12-13 DOI: 10.4236/OJSST.2013.34012

Hafida Bouloiz, E. Garbolino, M. Tkiouat

引用次数: 9