Potential reactivity assessment of mechanically activated kaolin as alternative cement precursor

MgB2 superconducting tapes with mechanically alloyed precursor powders as a possible alternative to NbTi

Efficiency of calcined kaolin and silica fume as cement replacement material for strength performance

The cementing efficiency factor k of a pozzolan is defined as the number of parts of cement in a concrete mixture that could be replaced by one part of pozzolan without changing the property being investigated, which is usually the compressive strength. This concept was proposed by Smith [1] and was initially applied in rational proportioning of fly ash concrete by using the ‘‘fly ash cementing...

Mechanically Activated Combustion Synthesis of B4C-TiB2 Nanocomposite Powder

Boron carbide is one of the hardest materials. The combustion method was used to synthesize B4C-TiB2 nanocomposite powder in a B2O3-Mg-TiO2-C system. An experimental study of the formation of B4C–TiB2 nanoparticles was conducted in the thermal explosion mode. A mixture of B2O3:TiO2:Mg:C at a molecular ratio of 3:1:12:1 was chosen to obtain the B4C–TiB2. This powder mixture was milled for differ...

Kaolin-activated thromboelastography in echocardiographically normal cats.

OBJECTIVE To determine reference values for kaolin-activated thromboelastography in echocardiographically normal cats. ANIMALS 30 healthy cats without evidence of cardiomyopathy on echocardiographic examination. PROCEDURES All cats underwent echocardiographic examination, the findings of which were reviewed by a board-certified cardiologist. Cats that struggled (n = 10) received mild sedati...

Mechanically Activated Ion Channels

Mechanotransduction, the conversion of physical forces into biochemical signals, is essential for various physiological processes such as the conscious sensations of touch and hearing, and the unconscious sensation of blood flow. Mechanically activated (MA) ion channels have been proposed as sensors of physical force, but the identity of these channels and an understanding of how mechanical for...