Imaging fibrillar amyloid-b deposition in the human brain in vivo by positron emission tomography has improved our understanding of the time course of amyloid-b pathology in Alzheimer’s disease. The most widely used amyloid-b imaging tracer so far is C-Pittsburgh compound B, a thioflavin derivative but other Cand F-labelled amyloid-b tracers have been studied in patients with Alzheimer’s diseas...

Nanofluids are suspensions of nanoparticles in the base fluids, a new challenge for thermal sciences provided by nanotechnology. In this paper, the tested fluids are prepared by dispersing the Al and Cu into water at three different concentrations such as 500, 1000 and 2000 ppm. Thermal conductivities of these fluids are measured experimentally by thermal property analyzer i.e. KD2 Pro by using...

Nanofluids are the heat transfer fluids having remarkable thermal properties. The paper presents the experimental analysis of thermal conductivity, density, specific heat and viscosity of multiwalled carbon nanoparticles dispersed in water at various temperatures and particle concentrations. To examine the forced convection heat transfer of Multiwalled Carbon Nanotubes (MWCNT)-water nanofluid, ...

In recent years, research has focused on enhancing the thermo-physical properties of a single component nanofluid. Therefore, hybrid or composite nanofluids have been developed to improve heat transfer performance. The Al2O3-TiO2-SiO2 nanoparticles suspended in base water (W) and ethylene glycol (EG) at constant volume ratio 60:40 different concentrations were investigated. experiment was condu...

this work presents a model for calculating the effective ‎thermal conductivity of nanofluids. the proposed model ‎includes the effects of nanoparticles and thermal conductivity ‎base fluid.we will focus on experimental of the volume ‎concentration parameter and temperature on thermal ‎conductivity, nano-fluid combination and multi-walled ‎carbon nanotubes-oxide / copper-paid deionized water. th...

The surrounding (backfill) materials around the underground power cable systems are essential for dissipating heat away from it, during exertion phases. dissipation restrains thermal instability and risk of progressive drying backfill materials, thus reducing stress on cable. Thermal indicates reduction in properties (conductivity or diffusivity) due to migration moisture because accumulation. ...

The present study allowed to carry out a thermal characterization of concrete and cement mortar. Thermal tests were carried with the KD2 Pro device, on mortar samples taken from twenty-six (26) construction sites office buildings two (2) industrial production units in city Ouagadougou. rectangular specimens after four weeks (4) conservation site or materials. This seeks determine properties mat...

In this paper, the mechanical and thermal properties of a sand-clay ceramic with additives coal bottom ash (CBA) waste from incinerator power plant are investigated to develop an alternative material for energy storage (TES). Ceramic balls developed at 1000°C 1060°C using sintering or firing method. The obtained ceramics were compressed compression machine thermally analyse Decagon devise KD2 P...