نتایج جستجو برای: glasspolyester composite

تعداد نتایج: 121604  

1995
PANKAJ JAIN

We show that composite fermions with masses much smaller than the scale of confinement arise naturally in certain models which admit dynamical breakdown of chiral symmetry. The models are such that to leading order some of the fermions remain massless but pick up small dynamical masses at subleading order.

Journal: :Dental materials journal 2013
Emine Sirin Karaarslan Mehmet Bulbul Esma Yildiz Asli Secilmis Fatih Sari Aslihan Usumez

The purpose of this study was to evaluate the effect of polishing procedures on the color stability of different types of composites after aging. Forty disk-shaped specimens (Ø10×2 mm) were prepared for each composite resin type (an ormocer, a packable, a nanohybrid, and a microhybrid) for a total of 160 specimens. Each composite group was divided into four subgroups according to polishing meth...

2012
Inaam A. Pedalino Thomas R. Schneid Kraig S. Vandewalle

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
Jie Kong Truell W Hyde Lorin Matthews Ke Qiao Zhuanhao Zhang Angela Douglass

The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a gaseous electronics conference (GEC) reference cell was studied. A mechanism for creating a single vertical dust string is described. It is shown that the oscillation amplitudes, resonance frequencies, damping coefficients, and oscillation phases of the dust particles ...

2004
Fu-Kuo Chang Richard A. Scott

Expressions were presented which can be used to estimate the strengths of continuous fiber reinforced composite laminates containing pin-loaded holes. The expressions apply to laminates containing either a single pin loaded hole, a single row of pin loaded holes, or two parallel rows of pin loaded holes.

Journal: :JDCTA 2008
Robin A. Christian Ravindra K. Lad Ashok W. Deshpande N. G. Desai

Urbanization and industrialization with minimal focus on environmental pollution has resulted in rapid degradation of natural environment. A fresh look at the pollution control strategies is, therefore, necessary. An attempt has been made to address the problem and a new formalism is proposed for ranking of industries based on their water and air pollution potential. Vagueness in the perception...

1995
Stuart Raby

This paper is based on four lectures given at the Trieste Summer School 1994 on theories of fermion masses. The first two lectures introduce three mechanisms which have been used to construct models of fermion masses. We then discuss some recent applications of these ideas. In the last lecture we briefly review SO(10) and some predictive theories of fermion masses.

Journal: :The Chinese journal of dental research : the official journal of the Scientific Section of the Chinese Stomatological Association 2012
Lippo V J Lassila Emre Nagas Pekka K Vallittu Sufyan Garoushi

OBJECTIVE To evaluate the translucency characteristics of new flowable bulk-filling resin composites at various thicknesses. Experimental short fibre-reinforced composite was also tested. METHODS Two new brands of flowable bulk composites (Venus Bulk Fill and SureFil SDR Flow), experimental short fibre-reinforced resin composite (FC) and, as control, conventional flow (Filtek Supreme Flow XT ...

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