heat stress Articles

  • Heat Stress In The Workplace

    Heta stress monitoring, why you should monitor, effects of heat stress and how to combat it in the workplace. Why should you measure heat stress? If you or your employees work in hot environments you may be susceptible to heat stress. Heat stress us caused when the temperature of a surround area or the core body temperature is raised resulting in dangerous high levels. ...


    By Shawcity Limited

  • Empirical validation of a new heat stress index

    Thermal stress is a well-recognised health hazard in the workplace. In addition to the health deficits, working in the heat can impact significantly on the productivity of some industries which are located in harsh environments. A long-standing dilemma in OHS has been the specification of what constitutes a safe working environment. The current indices used to evaluate the environment are either ...


    By Scarlet Tech Ltd.

  • A valid method for comparing rational and empirical heat stress indices

    No single heat stress index has gained universal acceptance within the past 20 years., despite extensive research. It is currently difficult to directly and quantitatively compare the many rational and empirical indices that are available, which results in confusion and a reluctance to change to a different index. A method is developed using the concept of limiting metabolic rate which allows ...


    By Scarlet Tech Ltd.

  • New Measures to Protect Workers from Heat Stress in China

    Work system to control heat exposure It is stipulated in the Measures that working time under high temperature shall be controlled by employers, unless exceptional cases of damaging life & property security and public interest exist. When the temperature reaches 40°C, outdoor work shall cease. When it stands at 37°C to 40°C, outdoor work shall not exceed more than ...


    By SGS

  • Self-pacing as a protective mechanism against the effects of heat stress

    Objective: Self-pacing or avoidance of physiological strain by adjustment of work rate may be an important protective behaviour for manual workers in severe thermal conditions. Data were gathered at a number of industrial sites in the United Arab Emirates to assess whether self-pacing takes place in these workers. Methods: Heart rate and aural temperature were monitored in 150 subjects for 12 h ...


    By Scarlet Tech Ltd.

  • Simulation of foundry environment for improving occupational exposure to heat stress conditions

    A worker in a foundry, especially near the furnace, is affected by several heat-related adverse health outcomes arising from non-ionising radiation emitted by molten metal. Such workers are likely to be affected by heat cramps, exhaustion, stroke, etc. Hence, the design of a proper furnace environment is an important issue to avoid these health hazards. In this study, the furnace environment is ...


    By Inderscience Publishers

  • The thermal work limit is a simple reliable heat index for the protection of workers in thermally stressful environments

    Background: Workers in many industries are exposed to thermally stressful work environments. Protection of the health of workers without unnecessarily compromising productivity requires the adoption of a heat index that is both reliable and easy to use. Objectives: To evaluate the Thermal Work Limit (TWL), in a controlled environment and under field conditions, against these criteria. ...


    By Scarlet Tech Ltd.

  • Limiting metabolic rate (thermal work limit) as an index of thermal stress

    The development of a rational heat stress index called thermal work limit (TWL) is presented. TWL is deŽ ned as the limiting (or maximum) sustainable metabolic rate that euhydrated, acclimatized individuals can maintain in a speciŽ c thermal environment, within a safe deep body core temperature (< 38.20±C) and sweat rate (< 1.2 kg/hr¡1). The index has been developed using ...


    By Scarlet Tech Ltd.

  • Beat the Heat: Occupational Exposure to Heat and Hot Environments

    With summer underway, now is the perfect time for organizations to examine their policies and procedures regarding employee heat exposure, especially in light of the recently published document from NIOSH titled, “Occupational Exposure to Heat and Hot Environments”, Publication Number 2016-106. What is the ...


    By Antea Group - USA

  • Assessment of organic micropollutants occurrence in treated wastewater using heat shock protein 47 stress responses in Chinese hamster ovary cells and GC/MS-based non-target screening

    Combining bioassays and analytical chemistry screening is a powerful approach to assess organic micropollutants which are the main contributors to toxic potential in complex mixtures of treated wastewater (TWW). The aim of this study was to perform a comprehensive toxicity assessment of treated effluents using stress response bioassays and then to assess the occurrence of the organic ...


    By IWA Publishing

  • The Myth of Heat Illnesses

    If you have not already had a safety talk in your workplace about heat stress and related illnesses, you probably will have one in the coming weeks.  Summer is around the corner and temperatures are warming up.  You will probably hear something about becoming acclimated to the heat slowly, and drinking plenty of water. But if that’s all that you have been told about warm outdoor ...

  • Simulation research on the influence of stress relaxation on plastic IC delamination during scrapped PCB disassembly

    Functional reuse of Integrated Circuits (IC) is effective to recover electronic utilities. Interfacial delamination may occur when the ICs are disassembled from scrapped Printed Circuit Board (PCB) and reduce reusability. In delamination analysis, viscoelasticity of moulding compound is a non-ignorable property as it reduces the stress. It is the purpose of this research to analyse the effect of ...


    By Inderscience Publishers

  • Coupled ADCPs can yield complete Reynolds stress tensor profiles in geophysical surface flows

    We introduce a new technique to measure profiles of each term in the Reynolds stress tensor using coupled acoustic Doppler current profilers (ADCPs). The technique is based on the variance method which is extended to the case with eight acoustic beams. Methods to analyze turbulence from a single ADCP rely on questionable assumptions on turbulence anisotropy ratios and on the requirement of ...


    By Teledyne RD Instruments

  • The Processes Performed with Heat Treatment Furnaces

    The term heat treatment covers a variety of controlled processes that are used to alter a material’s physical and chemical properties. Heat treatment furnaces are used to achieve these processes, which involve extreme heating or cooling to achieve their desired reaction. This blog post will outline some of the heat treatment processes that can be achieved with heat treatment furnaces. ...


    By Thermcraft Inc

  • Heat waves in Central Europe (1991–2006)

    The extreme weather phenomenon of heat waves poses a serious threat to humans and has been shown to contribute to increased sickness rates and even deaths, mostly in large cities. The paper concerns the occurrence of heat waves in Central Europe. Data was collected from five regional weather stations in Budapest, Krakow, Lvov, Prague and Vienna and included records of the average, maximum and ...


    By Inderscience Publishers

  • Assessment of cracking in concrete due to hydration heat and autogenous shrinkage

    An experimental study was conducted to simulate the generation of thermal stresses due to hydration heat and restraint by using a thermal stress measuring device (TSD). The net effects of time-dependent properties of hardening concrete can be well incorporated in TSD due to simultaneous development of temperature and corresponding stress in restrained specimen. Moreover, experiments were ...


    By Inderscience Publishers

  • A computer-based simulation for teaching heat transfer across a woody stem

    To assist student understanding of heat transfer through woody stems, we developed an instructional package that included an Excel-based, one-dimensional simulation model and a companion instructional worksheet. Guiding undergraduate botany students to applying principles of thermodynamics to plants in nature is fraught with two main obstacles: (1) students have a limited knowledge of heat ...

  • Cardiovascular metrics and transepidermal water loss in a high heat risk environment

    Heat stress is currently primarily classified by environmental factors and not physiological factors. It is already known that certain cardiovascular metrics such as heart rate, stroke volume, blood pressure and vascular compliance undergo changes as the body traverses the different classifications of heat stress from heat oedema to heat stroke. However, there is no specific metric that provides ...


    By Inderscience Publishers

  • Study on hydrodynamics and heat transfer of solitary wave on film flow with CFD method

    In this paper, a capacitance probe and high speed camera are adopted to study the solitary wave of falling film on large flat plate experimentally. Two types of solitary wave are studied with a Computational Fluid Dynamic (CFD) method based on the measuring data. The water–air shear stress on the interface of the solitary wave is modelled in the numerical calculation. The results indicate that ...


    By Inderscience Publishers

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