the wide availability of data on air pollutant emissions, the knowledge already achieved on theset of chemical and photochemical reactions in the troposphere, the ability to access real time weatherconditions at the local scale that determine the transport and transformation of gases and aerosol, now make it possible to obtain credible and reliable predictions, retrospective analyses and/or fut...

the new non-conventional cutting process by the use of thermal shock is a convenient procedure for cutting the brittle materials such as glasses and ceramics. this method is based on the application of localized thermal shock to brittle materials by the use of hot air jet, which induces thermal stresses at the tip of an existed pre-crack. due to the thermo-elastic behavior of materials, the pre...

background: since the industrial revolution, the rate of industrialization and urbanization has increased dramatically. regarding this issue, specific regions mostly located in developing countries have been confronted with serious problems, particularly environmental problems among which air pollution is of high importance. methods: eleven parameters, including co, so 2 , pm 10 , pm 2.5 , o 3 ...

background: many studies have been conducted to assess the indoor air quality (iaq) of buildings throughout the world because it is closely related to comfort, safety and work productivity of occupants. however, there is still lack of available literature about iaq in tropical buildings that apply radiant cooling systems in conditioning the indoor air. methods: this paper reports the results ob...

The following report describes the analysis for finding the speed of an extensive air shower produced by an ulta-high energy cosmic ray. Not only will this analysis be useful in measring the speed of cosmic ray showers but also it can help in correcting a bias in the detection instrumentation. As cosmic rays enter Earth’s upper atmosphere, they interact with nuclei, creating secondary particles...

A system for quality assessment of micropixel detectors is presented. The includes a laser scanning microprobe and setup studying the response micro to minimum ionizing particles. results validation developed indicate its suitability assessing latest monolithic active pixel sensors (MAPS), promising elements large-area tracking systems future high-energy physics experiments. Comparison MAPS wit...