Water-dispersible and magneto-responsive carbon nano test tubes with a controlled length (1.3 microm) and diameter (35 nm) were synthesized by using the nanochannels of anodic aluminium oxide as a template.

Introduction According to present theory, the nuclear processes in the sun give off vast quantities of neutrinos-Experiments confirm the production of these particles, but fail to detect the quantity predicted by theory. The most recent experiments have found a maximum of two thirds the expected number of neutrinos. The Sudbury Neutrino Observatory is being constructed to accurately determine t...

Abstract: The huge consumption of iron ores in China has attracted much attention to utilizing low grade complex iron resources, such as high-aluminum hematite-limonite ore, which is a refractory resource and difficult to upgrade by traditional physical concentration processes due to the superfine size and close dissemination of iron minerals with gangue minerals. An innovative technology for a...

In this study, the effects of heat treatment of aluminum alloy on the tube bending process were investigated in the rotary draw bending process. As two experimental and numerical simulation methods were used to determine the wall-thinning, ovality, and spring back for extruded, annealed, and aged AA6063 aluminum alloy tubes in different bending angles and bend radii. Numerical simulations were ...

This study introduced a method based on magnetic field assisted finishing mechanism for micromachining the inner surfaces of Aluminum tubes. In this approach, using the alternating magnetic field of an AC electromotor, abrasive particles were formed as Magnetic Rods (Magnetic Clusters) and surface micromachining was carried out by the dynamic particular pattern made by an alternating magnetic f...

Numerical investigation for turbulent flow of nanofluid (Ethylene glycol/water-Al2O3) is carried out with a volume fraction 0.5%, 1%, and 1.5%. The diameter solid nanoparticles equal to 20 nm. range Reynolds number in this simulation from 6300 27500 through three-dimensional steel corrugated spirally tube. For enhancement the heat transfer performance internal horizontal tube, tube combined alu...

‘THEUSE of heavy aluminum foil in our ashing procedure for PB1 (1), introduced 3 years ago, has proved extremely successful in preventing cross-contamination. A Temco double-door muffle furnace is used for which three steel buckets were made; small buckets, 4 in. wide, 6 in. long, and 6 in. deep, and one large bucket, 6 in. wide, 8 in. long, and 6 in. deep. A steel shovel was made to aid the te...

In this research, a practical study and appraisal of the thermal performance for solar collector with vacuum tube has conducted Two types nanomaterials (aluminum aluminum oxide) have added to distilled water nanoparticles diameters 30 nm 50 respectively. The were used in three several concentrations flow rates which as working fluid evacuated (ETSC) order increase efficiency beneficial gain. An...