Recent content by osama800

hi friends: can any one advise me from where i get copy of this book: (Nondestructive Rapid Identification of Metals and Alloys by Spot Test) is there library ? because i contact astm they said this copy was not available . best regards

hi friends: thank u very much for your valuable equation HVAC68. now if i want to estimate the quantity of insulation what is equation i must used ? if the duct is round in this case what is the equation i must used to estimate (the cost per square feet)? thanks again for your equation...

hi friends: thanks for all my queation is very easy i estimated the ductwork by weight but i get in one project the owner want from me the cost per square feet . how can i calculate it ???? best regards

hi friends: i need estimate duct system for a/c and the owner want from me estimate the cost per square feet so i need your help to estimate the quantites for sheets and man . hours units required for this dimenstion : 30 feet * 20 feet (dimension of duct )for 15 feet best regards

hi friends: i need estimate duct system for a/c and the owner want from me estimate the cost per square feet so i need your help to estimate the quantites for this dimenstion : 30 feet * 20 feet (dimension of duct )for 15 feet best regards

hi friends: is there any one can help me and give the equation i must used to calculate b.o.d in the waste water systems ? thank u in advanse for any help best regards.

hi friends what is the equation i must used to estimate ductwork and insulation by square feet method ? any articles will be gratefull thanks for all

hi friends: what is mean time to failure? best regards

hi friends: what is mean man.hours unit? i read it to much but i confuse it mean the time need to execute the job ? if i need more one labour to execute the job how can adjust the number of man .hours units? any articles will be gratefull.

hi friends: thank u very much for every one help me best regards

hi friends: thank u very much for every one help me best regards

hi friends is there any good book ,web site explain the differnt methods to distinguish between materials and alloys by chemical testing ? best regards

hi friends: how can design ventilation system for garage ? any suggestion ,articles will be gratefull best regards.

hi friends: what data i must collect to any process equipment and what is method to convert it to (time to failure )to begin do statistical analysis ? according my information i must do either probability or hazard analysis depend on my data if it is complete or multible censored data but...