A study is made of the effects of superposed tangential force by off-axis indentation loading on curved bilayers consisting of brittle shells filled with polymer support material. Such loadings are pertinent to all-ceramic crown structures on tooth dentin in occlusal function. Layer flexure places the ceramic undersurfaces in tension, leading to fracture by initiation and propagation of radial ...

BACKGROUND American College of Cardiology/American Heart Association guidelines advise waiting 5 to 7 days before operating on P2Y12 inhibitor-treated acute coronary syndrome patients, to allow dissipation of its antiplatelet effects. Platelet transfusion is often used to restore hemostasis during operations, but its effectiveness and optimal timing are unclear. We investigated the degree of fu...

over a period of three months (summer), 108 samples of water collected from four hospitals in te-hran. they were taken from numerous potable and non-potable water, including main supply cis-terns, calorifiers, hot and cold tap water, shower, cooling tower and drain of air condition system. culturing of concentrated and non-concentrated water samples on buffered charcoal yeast extract (bcye) aga...

Point-supported flat slabs made of cross laminated timber (CLT) for multi-storey buildings pose various challenges to structural design. One aspect are concentrated compressive loads, which cause stress concentrations in the form shear and compression perpendicular grain at point supports. The present work deals with this problem shows a method, how support area can be reinforced system connect...

A high H2S concentration inhibits nitrification when H2S and NH3 are simultaneously treated in a single biofilter. To improve NH3 removal from waste gases containing concentrated H2S, a two-stage biofilter was designed to solve the problem. In this study, the first biofilter, inoculated with Thiobacillus thioparus, was intended mainly to remove H2S and to reduce the effect of H2S concentration ...

In order to improve Super-Kamiokande’s neutron detection efficiency and thereby increase its sensitivity the diffuse supernova neutrino background flux, 13 tons of Gd2(SO4)3?8H2O (gadolinium sulfate octahydrate) was dissolved into detector’s otherwise ultrapure water from July 14 August 17, 2020, marking start SK-Gd phase operations. During loading, continuously recirculated at a rate 60 m3/h, ...

Abstract Understanding the dynamic response of a solar fuel processing system utilizing concentrated radiation and made thermally-integrated photovoltaic (PV) water electrolyzer (EC) is important for design, development implementation this technology. A detailed non-linear process model introduced fundamental components (i.e. PV, EC, pump etc.) in order to investigate coupled behavior performan...

The solar energy is increasingly used as a renewable source. Raising the efficiency of conversion from to useful (electric and thermal) represents an important research direction in domain. Using hybrid systems for electric thermal cogeneration can be solution. In this study, system (HS) designed, manufactured, implemented, experimentally tested under concentrated sunlight with concentration ra...