Abstract Quantum circuits show unprecedented sensitivity to external fluctuations compared their classical counterparts, and it can take as little a single atomic defect somewhere in mm-sized area completely spoil device performance. For improved coherence is thus essential find ways reduce the number of defects, thereby lowering hardware threshold for achieving fault-tolerant large-scale error...

In chemical, biological, radiological, and nuclear protective clothing, a layer of activated carbon material in between two textile layers provides protection against hazardous gases. A cylinder in cross flow, sheathed by such material, is generally used to experimentally test the garment properties. This is, however, complicated and predictive models are needed. We present a computational flui...

Portland cement has been analyzed and compared to mineral trioxide aggregate (MTA) because of their chemical similarity. The possibility of using this material as a less expensive alternative to MTA in dental practice should be considered. In view of this, the present study compared the components of a Portland cement (Votoran) to two commercial brands of MTA (Pro-Root and MTA-Angelus). Twelve ...

-Yttria (Y2O3) has become a promising gate oxide material to replace silicon dioxide in metal-oxide-semiconductor (MOS) devices. The characterization of native point defect in Y2O3 is essential to understand the behavior of the material. We used the firstprinciples pseudopotential method to study the electronic structure, defect structure and formation energy of native point defects in Y2O3. Va...

PURPOSE To present the findings from histological and chemical analysis of large dacryoliths and correlate them with previous reports. MATERIALS AND METHODS Dacryoliths were found in 8% of 216 dacryocystorhinostomy operations. In two cases with mild chronic dacryocystitis, large dacryoliths were extracted. The first case was a 42-year-old male with three dacryoliths in a lacrimal sac, present...

The analysis of surface and pores of activated carbons oxidized to various degrees has been carried out on the basis of adsorption isotherms of nitrogen, water and several organic compounds. The reason for the large hysteresis of isotherms of water was ascribed to the structure formation of water in the micropores caused by the hydrophobic interaction at water-carbon inferface. INTRODUCTION The...

Plastic debris litters aquatic habitats globally, the majority of which is microscopic (< 1 mm), and is ingested by a large range of species. Risks associated with such small fragments come from the material itself and from chemical pollutants that sorb to it from surrounding water. Hazards associated with the complex mixture of plastic and accumulated pollutants are largely unknown. Here, we s...

We study radiation convective fluid flow with chemical reaction. The dimensionless governing equations are solved using perturbation technique. The effects of velocity, temperature and concentration are studied for different parameters such as Grashof number, chemical reaction number, Prandtl number, Mass Grashof number and Radiative parameter. It is observed that the velocity increases with in...