نتایج جستجو برای: a leading ceramic center during this period
تعداد نتایج: 14232797 فیلتر نتایج به سال:
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
Background and Aim: All ceramic, inlay-retained resin bonded fixed partial denture is a conservative method for replacement of missing teeth, because of minimal tooth reduction. The connector between the retainer and the pontic is the weak point of these bridges. Reinforcement of ceramic core will increase the clinical longevity. The aim of this study was to determine the effect of zirconia on ...
background: during the one-year period from may 2008 to may 2009, a nationwide shortage developed which rabies vaccine was not being produced by the manufacturers. in order to manage existing supply, a protocol was established wherein an authorization was required from the regional poison center before vaccine could be administered to a patient. methods: the georgia poison center internal datab...
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...
AIM The aim of this study was to evaluate the clinical performance of IPS-Empress 2(R) all-ceramic crowns placed by general dental practitioners. METHODS AND MATERIALS Eighty-two IPS-Empress 2 crowns placed in 64 patients (27 females and 37 males) were evaluated. These crowns had been in place for 15.2 to 57.2 months (mean 25.3 months, SD=9.3). Survival analysis was conducted using the Kaplan...
Metal–ceramic systems represent a high-strength treatment associated with long-term success, but they have several disadvantages, mainly in terms of esthetics and biocompatibility. Over the past decade, a number of novel all-ceramic crown and bridge systems have been developed, with the capability of restoring anterior, posterior and multiple units. The search for new methods has been driven, i...
A new integration concept for micro-nano-integration based on a new bonding technique between nano-scaled, modified Black Silicon (BSi) and an adapted, unfired LTCC substrate is presented. The novel technique enables to combine advantages of silicon and ceramic technology, especially electrical and fluidic interconnects from nmto mm-scale. Current bonding concepts of silicon on ceramics need jo...
background most of the acid- burns are due to assault or accidental. the epidemiology of burns is diverse across the world and within a country. we evaluated the epidemiology and outcome of acid-burns in tertiary health care center in tehran, iran. methods this study was retrospective descriptive among patients referred for acid-burn injury that was done in a referral burn care center in tehran...
the public bathhouses are included in buildings as public utilities that have been expanded throughout islamic realm by arising islamic religion that cleaning is the preamble for most of its rites. unfortunately, from the beginning of islamic period until 8th hegira century (15th ad century) no stable sample of public bathhouses remained in iran, but many public bathhouses have still remained f...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید