The occurrence of a fire, no matter how small, often exposes objects to significant levels of contamination from the products of combustion. The production and dispersal of these contaminants has been an issue of relevance in the field of fire science for many years, though little work has been done to examine the contamination levels accumulated within an enclosure some time after an incident....

CONTEXT . China's rapid economic development has come at the cost of severe environmental degradation, most notably from coal combustion. Outdoor air pollution is associated with >300000 deaths, 20 million cases of respiratory illness, and a health cost of >500 billion renminbi (>3% of gross domestic product) annually. The young are particularly susceptible to air pollution, yet there has been ...

A wet. chemical techniq~e is ~escribed for passivating air-exposed GaAs surfaces. The passivating ~ayer IS elemental arsemc WhICh forms as a result of illuminating an n-type GaAs wafer immersed ~n a ~i~ture of Hel acid and d~ionized 18 Mil water with light from a mercury vapor lamp at mtenSltles of 0.01-0.05 yY-cm. Studies using XPS, LEBD, and UPS show that the passivated surfaces have the foll...

This review is about non-Newtonian nanofluid applications for convection in cavities under a magnetic field. Convection an important topic thermal energy system, and diverse exist processes such as drying, chemical processing, electronic cooling, air conditioning, removal of contaminates, power generation many others. Some problems occur symmetrical phenomena, while they can be applicable to ap...

Envelope analysis is a widely used tool for fault detection in rotating machines. In envelope analysis, impulsive noise contaminates the measured signal, making it difficult to extract features of defects. This paper proposes time–frequency that overcomes effects noises. performed by dividing signal into several sections through time window. The effect noises eliminated using frequency characte...

pricing for an insurance policy can be described as the process of calculation of expectedcompensation to be paid to property losers as well as associated costs of potential risks. loss forecast isaccurate if the risks will be identified appropriately in order to calculate the frequency and expected severityof losses.this is particularly important about environmental risks since most of them ap...

Recent research reported new evidence suggesting the radiocarbon dating of the Turin Shroud was invalid due to the intrusion of newer material in the sampling area. This evidence included the detection of anomalous surface contaminates in specimens from the sampling area. This paper reports new data from an unpublished study conducted by the Shroud of Turin Research Project (STURP) team in 1978...