purpose: in the present study we have tried to find the most reliable intraocular lens (iol) power calculation formula in patients with keratoconus (kcn) and cataract. methods: in a prospective case series between october 2010 and march 2012, eligible patients with cataract and kcn underwent phacoemulsification with iol implantation. preoperatively, based on iol master keratometric data iol pow...

the total change in living quality happening in developed countries represents a suitable policy and programming conducted by the government. providing enough power and authority for those who are called as society organizers, there remains no doubt to expect a fruitful national economy and consequently a much better living conditions. according to the rate of changes and family economic evolut...

The history of writing is interesting not just because it marks the evolution of means for preserving or communicating information but also because writing can be taken as representing aspects of language including such structural features as sentences, words, syllables and phonemes. Just how graphic symbols came to represent underlying linguistic constituents is the concern of this paper.] As ...

biomass co-firing with lignite represents an attractive solution for operating lignite-fired thermalpower plants (tpp) with the dual advantage of using local renewable resources and simultaneously reducingemissions. the subject of this study is technical and environmental investigation of the feasibility of the cofiring of soma lignite with some dried agricultural residues in the soma thermal p...

Arguably, the natural gas transmission pipeline infrastructure in Iran represents one of the largest and most complex mechanical systems in the world. The optimization of large gas trunk lines known as IGAT results in reduced fuel consumption or higher capability and improves pipeline operation. In the current study, a single-objective optimization was conducted for Khormoj compressor station o...