Assessment of human exposure to RF signals which are rapidly variable in time and wide-banded is not yet standardized. Signals in IEEE 802.11 standards are widespread among population use due to presence of wireless local area network in everyday life. Recently, with technological advancement of real-time vector signal analyzers, a more precise exposure evaluation became achievable. However, such instruments are prohibitive and not available for

Metallic Glasses (MGs) , called also bulk metallic glasses (BMGs) ( or glassy metals , amorphous metals , liquid metals) are considered to be the materials of the future. Bulk metallic glasses, formed at very low critical cooling rates, are different from traditional amorphous alloys (which are usually formed at high cooling rates) in order to avoid the crystallization . The most important feature of BMGs that distinguish them from ordinary amorphous

It has been estimated that up to 90% of all workplace accidents have human error as a cause. Placing emphasis on reducing human error may help reduce the costs induced by undesired events. The risk assessment and management process has taken nowadays a great importance, representing a compulsory requirement of the national legislation. Because of the market pressure, norms certifi cations and higher consumer expectations, companies can’t avoid

In order to meet statutory requirements concerning the workers health and safety, it is necessary for mine managers within Valea Jiului coal basin in Romania to address the potential for underground fires and explosions and their impact on the workforce and the mine ventilation systems. Highlighting the need for a unified and systematic approach of the specific risks, the authors are developing a general framework for fire/explosion risk assessment