Piezoelectric atomization, which breaks liquid into tiny droplets, is widely used in aerospace, medicine, and health. Most research piezoelectric atomizers has increased the atomization amount by improving mechanical structure optimizing vibration characteristics. However, as core component of atomizer to realize using dynamic conical angle effect, micro-tapered hole on atomizing sheet not been...

development of ultrasound technique has not been progressing for evaluating the internal quality of fruits as fast as that of processed foods. in this research for quality assessment of pear fruit (shah miveh variety) an ultrasonic measurement system was constructed to transmit and receive the ultrasonic waves. the apparatus included a pulser-receiver, a pair of 75 khz ultrasonic transducers wi...

This research presents 3D steady-state simulations of a skim milk spray drying process in counter-current configuration dryer. A two-phase flow involving gas and discrete phase is modeled using the Eulerian–Lagrangian model with two-way coupling between phases. The kinetics incorporated Reaction Engineering Approach. predictions are found to be accordance experimental temperature measurements m...

Numerical prediction of discharge parameters allows design a pressure-swirl atomizer in fast and cheap manner, yet it must provide reliable results for wide range geometries operating regimes. Many authors have used different numerical setups similar cases often concluded opposite suggestions on setup. This paper compares 2D (two-dimensional) axisymmetric, 3D (three-dimensional) periodic full m...

The current study focuses on comprehensive fuel spray modeling and its effects on chamber acoustics in combustion dynamics simulations. The fuel spray is modeled using an Eulerian-Lagrangian approach describing the atomizer internal flow, primary atomization, and secondary atomization processes. To anchor the fuel spray model, a series of experiments has been conducted on the fuel atomizer with...

It’s January, and an aluminum skiff glides slowly across the waters of an old, flooded railroad tunnel in northern Georgia. Its lone passenger is an atomizer, a machine commonly used to disperse air fresheners or mosquito repellents. Over the course of its half-hour journey through the 430-m tunnel, the atomizer sprays an aerosolized cocktail of antifungal compounds that drift up to the craggy ...

A novel method for preparing samples for use in MALDI-TOFMS (matrix-assisted laser desorption ionization time-of-flight mass spectrometry) is described. Seven hydrolysis products derived from nitrogen mustards and CHCA (alpha-cyano-4-hydroxycinnamic acid) were selected as model compounds and the matrix, respectively. A capillary atomizer was used for evaporative and spray deposition of the samp...

The mechanism of volatile hydride generation (HG) and the formation of analyte atoms in the quartz cell atomizer used in the determination of hydride-forming elements (As, Bi, Ge, Pb, Sb, Sn, Te etc.) by atomic absorption spectrometry (AAS), have been critically reviewed. The nascent hydrogen mechanism failed to explain hydride generation under different experimental conditions when tetrahydrob...

INTRODUCTION Electronic vapor cigarettes (E-cigarettes) were created in 2003 as an alternative to traditional tobacco cigarettes. E-cigarettes have been available in the United States since 2006.1 The typical E-cigarette consists of a cartridge that contains liquid, an atomizer that heats the liquid (i.e. acts as a vaporizer), as well as a battery. The liquid contained within the cartridge cont...