chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...

on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...

افزایش روزافزون تعداد کاربران شبکه اینترنت موجب افزایش ترافیک در این شبکه شده است. یکی از مواردی که می تواند علاوه بر شبکه های زمینی به انتقال اطلاعات بپردازد ماهواره ها هستند از این رو پای ماهواره ها هم به این عرضه باز شدهاست. نگهداری می کند تا در صورت درخواستهای آینده برای همان اطلاعات نیازی به بازیابی مجدد آ>ها از شبکه نبوده و بتوان آنها را مستقیما از حافظه بازیابی کرد. با توجه به حافظه محد...

in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...