in tehran megacity with 7705036 populations, 7000 tons solid waste a day has been generated in 2008. according to the municipality`s division, tehran is divided to 22 local zones. quality and quantity are the basis of planning for hazardous waste management system. in this context, selection a combination of techniques, technology and management program is imperative to achieve purposes of wast...

MOTIVATION Biological cells continually need to adapt the activity levels of metabolic functions to changes in their living environment. Although genome-wide transcriptional data have been gathered in a large variety of environmental conditions, the connections between the expression response to external changes and the induction or repression of specific metabolic functions have not been inves...

Electrical units are operated by electrical and electronic components. An environmental test sequence is useful for testing electrical units to reduce reliability issues. This study introduces test sequence guidelines based on relevant principles and considerations for electronic testing according to International Standard IEC-60068-1 and the United States Military Standard MIL-STD-810G. Test s...

A logical system of symbols to designate the widely accepted biological variables routinely measured in environmental research is described. Upper case letters are used for three major symbols of temperature, heat quantity, and rate of heat transfer. These are modified by upper case subscripts for physical variables and lower case subscripts for biological variables.