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  1. Article ; Online: Application of the thermoelectric cooling system in making a cooling belt: A case of heat stress control measure device.

    Samani, Ali Sahraneshin / Ghavamabadi, Leila Ibrahimi / Dehaghi, Behzad Fouladi

    Work (Reading, Mass.)

    2024  

    Abstract: Background: Climate change and global warming are emerging as new challenges worldwide. The World Meteorological Organization has reported that the temperature is expected to rise by an average of 1.2°C between 2021-2025. This increase in temperature ... ...

    Abstract Background: Climate change and global warming are emerging as new challenges worldwide. The World Meteorological Organization has reported that the temperature is expected to rise by an average of 1.2°C between 2021-2025. This increase in temperature will expose more and more workers to extreme heat.
    Objective: This study aimed to explore the possibility of using thermoelectric coolers for cooling the water circulation circuit of a cooling belt, which can be used for extended periods in high-temperature environments.
    Methods: A cooling belt was designed using thermoelectric coolers (TEC) and two blowers. The TECs were equipped with heat sinks and heat exchange block made of aluminum at hot and cold sides to exchange heat effectively.
    Results: The experiment was conducted under actual environmental temperature conditions during three different time periods, with mean temperatures of 31, 48, and 41°C. The mean temperature of the belt section was recorded as 20.73, 24.52, and 21.38°C, respectively. The maximum average difference between the inlet air temperature and the inside cooling belt temperature was 40.45°C.
    Conclusion: The experiment revealed that the cooling performance of the designed prototype remained within an acceptable range (18°C) despite the increase in ambient temperature. Moreover, the cooling system can be utilized in high-heat environments to reduce thermal stress.
    Language English
    Publishing date 2024-01-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1394194-x
    ISSN 1875-9270 ; 1051-9815
    ISSN (online) 1875-9270
    ISSN 1051-9815
    DOI 10.3233/WOR-230329
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Metabolic syndrome and its relationship with shift work in petrochemical workers.

    Rashnuodi, Payam / Afshari, Davood / Shirali, Gholam Abbas / Amiri, Arman / Zadeh, Marziye Raesi / Samani, Ali Sahraneshin

    Work (Reading, Mass.)

    2022  Volume 71, Issue 4, Page(s) 1175–1182

    Abstract: Background: The metabolic syndrome is a complex of interdependent risk factors for cardiovascular disease and diabetes. Shift work might have an impact on metabolic variables, and be a risk factor for type 2 diabetes. To date, only few studies have been ...

    Abstract Background: The metabolic syndrome is a complex of interdependent risk factors for cardiovascular disease and diabetes. Shift work might have an impact on metabolic variables, and be a risk factor for type 2 diabetes. To date, only few studies have been done on the prevalence of MetS in industrial work environments in Iran, and most of them have been conducted on a small sample size.
    Objective: The aim of this study was to evaluate the impact of shift work on prevalence of metabolic syndrome in one of the petrochemical companies in Iran.
    Methods: This cross-sectional study was conducted among 692 male workers of a petrochemical company in south-west Iran. Metabolic syndrome was diagnosed according to criteria recommended by Adult Treatment Panel III. In order to determine correlation between MetS and its factors with shift work odds ratio (ORs) for the MetS, 95% confidence level (95% CL), chi-square test and logistic regression analysis were performed.
    Results: Overall 15.1% of workers were diagnosed with metabolic syndrome and 80% of them were shift workers. A significant difference for prevalence of metabolic syndrome and mean values for body mass index, blood pressure, fast blood sugar, waist circumference among shift workers and non-shift workers were identified (p < 0.001). Compared with the day workers, shift workers had a significantly higher risk of MetS (odds ratio = 4.852; 95% CI 2.34-9.974).
    Conclusions: There is an association between metabolic syndrome and shift work in petrochemical workers. Promising intervention strategies are needed for prevention of metabolic disorders for shift workers.
    MeSH term(s) Adult ; Cross-Sectional Studies ; Diabetes Mellitus, Type 2/complications ; Female ; Humans ; Male ; Metabolic Syndrome/epidemiology ; Prevalence ; Risk Factors ; Shift Work Schedule/adverse effects ; Waist Circumference
    Language English
    Publishing date 2022-03-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1394194-x
    ISSN 1875-9270 ; 1051-9815
    ISSN (online) 1875-9270
    ISSN 1051-9815
    DOI 10.3233/WOR-205223
    Database MEDical Literature Analysis and Retrieval System OnLINE

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