Based on an effective energy conversion method between gas enthalpy and thermal radiation, a multi-layered type of porous air heater has been proposed. In the five layered structure which is analyzed in this work, there are five porous layers which are separated by four quartz glass windows. The main layer operates as a porous radiant burner that products a large amount of thermal radiative ene...

the oil content of the wax produced in a dewaxing process is the key economic parameter thatshould be reduced as much as possible. some factors such as the type of solvents, cooling rate,temperature, and solvent to oil ratio influence the dewaxing process. due to the fact that crude oildiffers from place to place and since the operational conditions for wax extraction vary for differenttypes of...

Starter activities • Ask the students what is meant by ‘health and safety in the workplace’. Ask them to give you some examples • Using the factsheet, describe to the students what a work environment used to be like. Ask for their ideas on how they would expect a workplace to differ today • Ask the students why health and safety in the workplace is important. Read out the case study to emphasis...

Discusses the importance of addressing the potential toxic effects of harmful agents encountered through occupational exposure on the fetus and the male and female reproductive systems. Some employers in the United States have excluded females from job positions that may have the potential to interfere with normal reproductive function. This policy is contrary to the Equal Employment Opportun...

Computer Supported Cooperative Work (CSCW) studies the possibilities and effects of technological support for agents involved in cooperative work processes. Many technologies dedicated to cooperative work environments such us cooperative requirements engineering or cooperative information systems have emerged in the past decade. For many organisations, structured and unstructured cooperative ac...

The air pollution due to tobacco smoke and its effects on employees were investigated in 44 work-rooms. For that purpose the concentration of CO, NO, Nicotine and the Particulate Matter were determined and 472 employees were interviewed about annoyance and irritations. The mean values of the concentrations of the components due to tobacco smoke are: CO = 1.1 ppm, NO = 32 ppb, Nicotine = 0.9 mic...

This paper will discuss the future use of the dwelling as a place for cooperative work. It is our opinion that the development of the communication technologies and the architectural design has to be treated in parallel when we discuss new forms of living and work habits. Our analysis is built on a theoretical framework that is reflected through earlier experiences in IT technology in domestic ...