It is known that catalytic sensors have different sensitivities to different combustible gases. Usually gas analyzers are calibrated by methane and not suitable for measuring other flammable gases. Correction is needed to get real concentration of other gases. In this paper it is shown that sensor sensitivity to one particular gas alters with sensor temperature and each gas has its own rate of ...

are offset to a degree by revenue generated through fines. One barrier to successful implementation of Tobacco 21 laws is the prospect of incomplete compliance by retailers. Compliance with the 18-year minimum has been variable, and interventions to boost compliance have had mixed success.5 Some retailers may prove even more reluctant to comply with Tobacco 21 laws, particularly in challenging ...

Reuse and recycling are preferred strategies in waste management to ensure the high position of resources hierarchy. However, challenges still pronounced many developing countries, where disposal as a final solution is prevalent, particularly for municipal solid waste. On other hand, refuse-derived fuel means energy recovery provides sustainable option managing mixed, contaminated residual (MSW...

Façade fires in tall buildings are currently occurring more than once a month globally that responsible for many casualties and billions of dollars losses. In particular, the tragic Grenfell Tower fire London with 70 fatalities raised profile façade hazard. This work used well-controlled irradiation up to 60 kW/m2 re-assess hazard typical flame-retardant aluminum composite panels (ACPs) dimensi...

Material flows and their contributions to fuel properties are balanced for the mechanical section of a mechanical-biological treatment (MBT) plant producing solid recovered fuel (SRF) for the UK market. Insights for this and similar plants were secured through a program of sampling, manual sorting, statistics, analytical property determination, and material flow analysis (MFA) with error propag...

The extraction and amplification of nucleic acid from formalin-fixed and paraffin-embedded tissues has become an important exercise in the collection of retrospective epidemiological data. A protocol is described that enables the extraction and amplification of dsDNA from fixed tissues within paraffin blocks and from specimens stored in 10% (aq) formalin. The procedure can be used for the exami...

The primary objective of this research was to determine the relationship between operational variables and oil spill recovery rates, by performing a full-scale oil spill recovery test using an oleophilic drum skimmer. Prototype interchangeable oleophilic skimmer drums with aluminum, polyethylene and Neoprene surfaces were fabricated and tested at the field scale at the Ohmsett-National Oil Spil...

The potential of activated charcoal in the purification of fungal glucoamylase was investigated. Various concentrations of activated charcoal (1-4% w/v) were used to concentrate crude glucoamylase from Rhizopus oligosporus at different temperature values (30-50°C). Effects of pH (3.0-6.0) and contact time (0-60 min) on enzyme purification were also monitored. Activated charcoal (3% w/v) gave a ...