Study on Low-Chromium Heat Resisting Steels for Inlet Values

Effects of Heat Treatments on Steels for Bearing Applications

a study on corrosion reasons of heat exchanger in ammonia unit

چکیده ندارد.

a study on the effectiveness of task types (noticing-reformulation) on iranian low intermediate efl learners’ retention of collocations

چکیده پژوهش شبه تجربی حاضر به بررسی بکارگیری تمارین کلاسی که برانگیزنده آگاهی و توجه آگاهانه به همایندها بعنوان بخشی از یک دوره ی مکالمه زبان خارجی در یکی از آموزشگاه های زبان انگلیسی ایران است می پردازد.

a study on thermodynamic models for simulation of 1,3 butadiene purification columns

attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

Fundamental Principles of Heat - Treating Steels

eat-treating is a process that is critical to the fabrication of steel fasteners. It is a necessary process in order to achieve the mechanical properties. Heat-treating is typically conduc t ed a f t e r t he fo rming processes and before any coating or finishing processes. Heat-treating may be done by the manufacturer or outsourced to a commercial shop. The equipment necessary to effect ively ...