Ara
Toplam kayıt 2670, listelenen: 1041-1050
Electrical conductivity and corrosion performances of in situ and ex situ AA7075 aluminum composites
(Polish Academy of Sciences, 2017)
The present study investigates corrosion behaviors and electric conductivity of AA7075 in situ (TiAl3) and ex situ (B4C) composites produced by powder metallurgy method. In production of in situ composites, various amounts ...
Corrosion behaviour and electrical conductivity of reinforced TiAl3 and B4C hybrid aluminium composites
(Polish Academy of Sciences, 2017)
In this study, corrosion and electric conductivity of aluminum hybrid composites (in situ TiAl3 and ex situ B4C) produced by powder metallurgy are investigated. Hybrid (in situ and ex situ) aluminum composite powders are ...
Effect of surfactant types on the size of tin oxide nanoparticles
(Polish Academy of Sciences, 2017)
In this study, tin oxide (SnO2) nanoparticles were synthesized by hydrothermal method in the presence of hydrazine and ammonia by adding surfactant for 12 h in a Teflon autoclave at 100°C reaction temperature. Tin(II) ...
Preparation and swelling properties of zeolite-poly(2-hydroxyethyl methacrylate-co-acrylic acid) hydrogel composites
(Polish Academy of Sciences, 2016)
Zeolite-Poly(2-hydroxyethyl methacrylate (HEMA)-co-acrylic acid (AA)) hydrogel composite materials were synthesized by in situ free radical addition polymerization technique. The swelling values obtained highly for the ...
Synthesis, characterization and sensing behavior of WO3 nanocrystalline powder for toluene vapor
(Polish Academy of Sciences, 2017)
Tungsten oxide (WO3) nanocrystalline powder was successfully synthesized by direct precipitation technique starting from sodium tungstate dehydrate (Na2WO4•2H2O) as precursor at 80°C for 48 h. The morphological characteristics, ...
High pressure elastic properties of wurtzite aluminum nitrate
(Physical Society of the Republic of China, 2014)
Aluminum nitrate is an indisputable material for current optoelectronic technology. Although much scientific effort has been devoted to understand the ground state elastic properties of aluminum nitrate, little is known ...
Elastic and mechanical properties of cubic diamond under pressure
(Physical Society of the Republic of China, 2015)
We report on some structural, elastic, and mechanical properties of cubic diamond under pressures up to 500 GPa. Unlike existing theoretical works, the second-generation reactive bond order (REBO) potential was used for ...
A rare presentation of subclinical Cushing’s syndrome as a pubic fracture
(Japanese Society of Internal Medicine, 2014)
Osteoporosis and bone fractures are commonly seen in patients with Cushing’s syndrome (CS). Fractures usually occur in the vertebrae and ribs whereas pubic fractures are less common. Similar to obvious hypercortisolemia, ...
Normocalcemic hyperparathyroidism is associated with complications similar to those of hypercalcemic hyperparathyroidism
(Springer Tokyo, 2016)
Normocalcemic primary hyperparathyroidism (NC-PHPT) is a variant of hyperparathyroidism, characterized by normal serum calcium levels, high parathyroid hormone (PTH) and normal 25-OH vitamin D status. The present study ...
Forchheimer forced convection in a rectangular channel partially filled with aluminum foam
(Elsevier Inc., 2016)
In this paper, heat transfer and pressure drop were investigated by placing open-cell aluminum foam in different ratios according to the channel volume in a hydrodynamically fully developed rectangular channel. Aluminum ...