Work safety evaluation in Mainland China using grey theory

Wei, Jiuchang; Zhou, Lei; Wang, Fei; Wu, Desheng Dash

doi:10.1016/j.apm.2014.06.017

Cited by 52 publications

(25 citation statements)

References 40 publications

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“…Step 1: Noise study in welding plant We studied the results of dosimetries made to the workers of the welding workshop and to workers of nearby workshops as shown in Fig. 2 [15].…”

Section: Case Studymentioning

confidence: 99%

Acoustic Insulation Design of Noise in Welding Plant through Screens

Delgado*,

Luyo,

Carbajal

2019

IJITEE

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Abstract: Noise is one of the industrial hygiene agents of greatest concern, which explains the large amount of regulations and literature that attempt to reduce it. In most industries in Peru and the world the welding process is indispensable as part of their production process, nevertheless this activity involves several risks for people, not only for those who perform the activity but also those who are adjacent to it, within these risks, exposure to high levels of noise is one of the most difficult to control because the control at the source of noise is almost, one of the great passive controls in noise reduction is the use of screens or acoustic curtains. It is for this reason that the objective of this article is to propose a design of acoustic barriers through screens, respondingto the problem of noise generated in welding workshops. The stages in the process of designing acoustic screens for a welding plant are presented in chronological order.

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“…Step 1: Noise study in welding plant We studied the results of dosimetries made to the workers of the welding workshop and to workers of nearby workshops as shown in Fig. 2 [15].…”

Section: Case Studymentioning

confidence: 99%

Acoustic Insulation Design of Noise in Welding Plant through Screens

Delgado*,

Luyo,

Carbajal

2019

IJITEE

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“…Among all forecast techniques being developed over the last few decades, the grey model and its alternatives have emerged as powerful tools in various application domains, such as economy (Evans, 2014;Huang & Jane, 2009;Ma, Zhu, & Wang, 2013), industry (Benítez, Paredes, Lodewijks, & Nabais, 2013;Hsu, 2011;Hsu, Liou, & Chuang, 2013), society (Jin, Zhou, Zhang, & Tentzeris, 2012;Pao, Fu, & Tseng, 2012;Wei, Zhou, Wang, & Wu, 2014) and engineering (Chen & Wang, 2012;He, Liu, & Chen, 2012;Ye, Lu, & Liu, 2013). Compared with conventional statistical models, the grey model has three superiorities: (1) requiring few sample size;…”

Section: Introductionmentioning

confidence: 99%

Regularized multivariable grey model for stable grey coefficients estimation

Shen

Li³

et al. 2015

Expert Systems with Applications

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“…In 1997, in Peru, President Alberto Fujimori privatized the metallurgical complex; it was then that U.S. billionaire Ira Rennert, owner of the transnational Renco group, acquired the complex and established the company Doe Run Perú, which operates in Cobriza and La Oroya [1], and it was also then that he was charged with implementing an environmental adjustment program, request that he did not execute [2]. After extending its Environmental Adjustment and Management Program in 2006 [1], in July 2009, the Ministry of Energy and Mines (MEM) warns that it will close the La Oroya complex if Doe Run does not present a viable proposal to get out of the financial crisis it is going through; a month later the company becomes insolvent and goes into restructuring [3].…”

Section: Introductionmentioning

confidence: 99%

Social Impact Assessment in La Oroya, Peru Applying the Grey Clustering Method

Delgado*,

Cuba,

Carbajal

2019

IJITEE

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The social conflict presented in the city of La Oroya, of a national government issue type, is considered by the Ombudsman's Office as a latent social conflict during the month of April 2019; therefore, analyses, agreements, meetings and dialogue tables are presented, which allow subjective evaluations of the problematic reality, complicating the correct decision making. For which, the application of the Grey Clustering method is proposed to quantify the social impact presented in the city of La Oroya; the surveys were conducted on Sunday, June 2, 2019, containing 08 questions (same number of criteria to evaluate) that were answered by 20 settlers, such answers were evaluated with the Grey Clustering method obtaining as a result that the social impact in the city of La Oroya is of normal level.

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Work safety evaluation in Mainland China using grey theory

Cited by 52 publications

References 40 publications

Acoustic Insulation Design of Noise in Welding Plant through Screens

Acoustic Insulation Design of Noise in Welding Plant through Screens

Regularized multivariable grey model for stable grey coefficients estimation

Social Impact Assessment in La Oroya, Peru Applying the Grey Clustering Method

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