backgrounds and objectives: the dispersion of particulate matter has been known as the most serious environmental pollution of cement plants. in the present work, dispersion of the particulate matter from stack of kerman cement plant was investigated using computational fluid dynamics (cfd) modeling.materials and methods: in order to study the dispersion of particulate matter from the stack, a ...

Alter Breath-hold duration Increasing parallel-imaging factors (up to x 4 routinely) will reduce breath-hold with minimal impact on SSFP quality. Reduce spatial resolution small reductions in phase resolution will significantly reduce breath-hold Increasing the echo train/segments shorten breathhold, with slight decrease in temporal resolution Increase the number of averages(3-5) for free-breat...

This paper proposes a new perspective in the enhancement of the closed-loop tracking performance by using the first-order hold (FOH) sensing technique. Firstly, the literature review and fundamentals of the FOH are outlined. Secondly, the performance of the most commonly used zero-order hold (ZOH) and that of the FOH are compared. Lastly, the detailed implementation of the FOH on a pendulum tra...

beverage emulsions are systems that are composed of two liquids including oil and water which are prepared by homogenizing oil phase in an acidic aqueous phase. they must be stable in both concentrated and diluted form for a period of 6-12 months upon standing at room temperature. two immiscible phases contained systems are thermodynamically unsta-ble. in other words, they are vulnerable to bre...

We report the synthesis of ZnSe:Mn quantum dots (QDs) in the dispersed phase of a microemulsion template consisting of p-xylene as the continuous phase, water as the dispersed phase, and an amphiphilic block copolymer (Pluronic P105) as the surfactant. The Zn and Mn precursors were Zn-acetate and Mn-acetate, respectively, dissolved in the aqueous dispersed phase. Hydrogen selenide gas was bubbl...

We present a concept for solid phase extraction of compounds from reactions contained in the dispersed phase of twophase flow based on the manipulation of liquids via patterned surface chemistry. Approaches to guiding of liquids via patterned surface coatings have been proposed by several groups [1-3]. However, few practical applications of such approaches have been reported to date. We demonst...

This study presents the investigations on effect of heat transfer droplet formation in T-type microfluidic channel. Mineral oil acts as a continuous phase, and water dispersed phase. The Volume Fluid model is used to investigate droplets microchannel. physical properties both fluids change with an increase temperature which dominant are viscosities interfacial tension. parameters such diameter,...

The objective of this paper is to minimize the phase delay of the zero-order hold (ZOH) an usual sample-data hold device. In this paper an optimized data holding scheme whose phase delay is significantly less than of the ZOH is presented. The method is based on using optimal extrapolators, which has a better result than extrapolators proposed by Yekutiel (1980) and Belicynski and Kozinski (1984...