In this study, the thermal performance of three kinds of roofs with different heat capacity and thermal conductivity under different external conditions has been investigated using a numerical method. For this purpose, the combined solar radiation, conduction and convection heat transfer were calculated implicitly in terms of a one-dimensional finite difference method. Different high and low so...

All of these materials are transported on land, sea or in the air in compliance with regulations which are now universally based on the IAEA Regulations for the Safe Transport of Radioactive Materials Ref. [1]. These regulations are designed to ensure adequate protection of transport workers, the public and the environment against the hazards of external radiation, the spread of radioactive con...

Objective: the RE-AIM framework has been widely used to evaluate internal and external validity of interventions aimed to promote physical activity, helping to provide comprehensive evaluation of the reach, efficacy, adoption, implementation and maintenance of research and programming. Despite this progress, the RE-AIM framework has not been used widely in Latin America. The purpose of this man...

This article discusses various types of energy efficient thermal insulation materials. The efficiency calculation a multi-storey 36-apartment residential building using options for the enclosing structures has been carried out, after which results have compared.

With the increasingly commercial emphasis on dental esthetics, patients have become more interested in improving the appearance of their smile. For many, whiter teeth is their chief goal. However, when considering dental bleaching, practitioners need to take certain precautions. Over the past decade, multiple studies have evaluated the effects of bleaching agents on restorative materials. This ...

Scientists have long been interested in measuring external qi (EQ or wai qi) during qigong healing, and have produced a large body of literature over the past 20 years. This paper reviews the major research on measuring EQ in China and tries to help other researchers to get a picture on what has been done so as to eliminate the simple replication of already verified results. Starting with the h...