نتایج جستجو برای: monolithic groups

تعداد نتایج: 737089  

Journal: :The Journal of prosthetic dentistry 2015
Despoina Bompolaki Elias Kontogiorgos John B Wilson William W Nagy

STATEMENT OF PROBLEM Endodontic access preparation through a lithium disilicate restoration is a frequently encountered clinical situation. The common practice of repairing the accessed crown with composite resin may result in a weakened restoration. PURPOSE The purpose of this in vitro study was to determine the effect of endodontic access preparation on the fracture resistance and microstru...

2017
Ehsan Ataie Reza Entezari-Maleki Leila Rashidi Kishor S. Trivedi

Infrastructure as a Service (IaaS) is one of the most significant and fastest growing fields in cloud computing. To efficiently use the resources of an IaaS cloud, several important factors such as performance, availability, and power consumption need to be considered and evaluated carefully. Evaluation of these metrics is essential for cost-benefit prediction and quantification of different st...

2017
Reza Derafshi Hooman Khorshidi Mohamadhasan Kalantari Ilyad Ghaffarlou

BACKGROUND Patients susceptible to periodontal disease and dental caries, including those who undergo fixed prosthodontic treatments use chemical plaque control agents. However, these mouthrinses may result in adverse effects such as discoloration of the restorative materials. The aim of this study was to compare the color stability of monolithic zirconia and feldspathic porcelain after immersi...

2011
Raveendranath U. Nair

The application of circular aperture frequency selective surface (FSS) for the enhancement of electromagnetic performance of monolithic half-wave radome is presented. The performance parameters of the circular aperture type FSS embedded radome panel are computed based on equivalent transmission line method in conjunction with equivalent circuit method (ECM). The EM analysis shows that the circu...

Journal: :Journal of the American Ceramic Society 2005

Journal: :Electrophoresis 2006
Jiwei Hu Chuanhui Xie Ruijun Tian Zhike He Hanfa Zou

A hybrid silica monolithic stationary phase for RP CEC was prepared by in situ co-condensation of (3-mercaptopropyl)-trimethoxysilane (MPTMS), phenyltriethoxysilane (PTES), and tetraethoxysilane (TEOS) via a sol-gel process. The thiol groups on the surface of the stationary phase were oxidized to sulfonic acids by peroxytrifluoroacetic acid. The introduced sulfonic acid moieties on the monolith...

2000
C. R. Knight Malcolm. Munro

Rapid change is nothing new in a discipline that only has a lifespan of approximately fifty years. What is unique at the moment however, is the speed at which industry is adopting and then utilising these changes. The Internet is the primary driver in this rapid evolution, and this requires a step change in the thinking behind software evolution. Logically, and financially, it makes sense for t...

Journal: :IEICE Transactions 2006
Itaru Nakagawa Ryo Ishikawa Kazuhiko Honjo Masao Shimada

Journal: :CoRR 2012
Frank van Harmelen George Kampis Katy Börner Peter Van den Besselaar Erik Schultes Carole A. Goble Paul T. Groth Barend Mons Stuart Anderson Stefan Decker Conor Hayes Thierry Bücheler Dirk Helbing

Modern science is a main driver of technological innovation. The efficiency of the scientific system is of key importance to ensure the competitiveness of a nation or region. However, the scientific system that we use today was devised centuries ago and is inadequate for our current ICT-based society: the peer review system encourages conservatism, journal publications are monolithic and slow, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1386

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