BACKGROUND Because protons in fat do not exhibit a temperature-dependent frequency shift, proton resonance frequency shift (PRFS)-based MR thermometry always suffers from disturbances due to the presence of fats or lipids. OBJECTIVE A new fat suppression method for PRFS-based MR thermometry is proposed to obtain accurate variation of phase angle. METHODS Similar to the approach of separatin...

Rivers can absorb certain amounts of contamination relying on different factors such as: river discharge, the primary conditions of the river, the river depth, discharge and the river viscosity of the offloaded wastes in the river. From parameters of water quality point of view, it is recom-mended to determine some parts of the river which are lower than the standard level in order to find out ...

Abstract A good aromatherapy experience of an incense stick with filter material depended heavily on the barrier effect particles and comfort temperature aroma. The lack accurate methods to determine aroma greatly hindered quality control product development aromatherapy. In this study, a novel method was proposed measure negative coefficient thermistor needle thermocouple. experimental results...

STUDIES on crossing over are usually designed to correlate changes in crossover values with a specific genetic or environmental condition. The lack of understanding of the primary genetic effects of chromosome rearrangements makes inferences based on the effects of these aberrations on crossing over difficult ( SUZUKI 1963b). On the other hand, extrinsic factors (temperature, radiation, chemica...

Friction and wear behavior exists between hoisting ropes that are wound around the drums of a multi-layer winding hoist. It decreases the service life of ropes and threatens mine safety. In this research, a series of experiments were conducted using a self-made test rig to study the effects of the strand lay direction and crossing angle on the winding rope's tribological behavior. Results show ...