Biomedical subjects

Mei-Yu Huang

Publications and source records attributed to Mei-Yu Huang.

3 recordsLinked to original sources

PubMed2005

[Aromatherapy for dysmenorrhea].

Dysmenorrhea is one of a number of discomforts that women often suffer. Many kinds of complementary therapies have been discussed in the literature on the subject, and aromatherapy is one of these. Aromatherapy uses the action of essential oils refined from plants to relieve discomfort. It is effective at relieving the symptom distress associated with many conditions, but the literature contains little information about essential oils and dysmenorrhea relief. This paper therefore discusses several topics that may be of interest to women, as follows: 1. The fundamental concept of aromatherapy and its applications. 2. The essential oil used for dysmenorrhea relief. 3. The principles of essential oil recipes for dysmenorrhea relief. 4. The method for using essential oil for dysmenorrhea relief, and things to note.

Aromatherapy↗

PubMed2003

Quantitative prediction of traffic pollutant transmission into buildings.

An integrated air quality model that combines a CFD model and multi-room pollutant transport model has been developed to study the effect of traffic pollution on indoor air quality of a multi-room building located in close proximity to busy roads. The CFD model conducts the large eddy simulation of the three-dimensional turbulent flows and pollutant transport processes in outdoor, whereas the multi-room pollutant transport model performs zonal airflow and pollutant transport in indoor. The integrated model is verified with available field measurement of traffic-induced CO concentrations. Twelve scenarios of numerical experiments for various configurations of window openness are carried out to study the effects of the air change rate and the outdoor pollutant dispersion on indoor air quality. It is concluded that the windward side opening is a significant factor contributing to indoor air quality. Using air inlets on the sideward and leeward envelopes simultaneously can effectively lower the daily mean and peak indoor levels of traffic pollutants and maintain a desirable air change rate.

Air Movements↗

PubMed2002

Removal dynamics of airborne road dust in a ventilated airspace.

We derive a simple linear dynamic equation to describe the removal mechanisms of airborne road dust from a ventilated airspace. The dynamic equation is sufficiently to take into account the simultaneous removal effects of turbulent coagulation, turbulent diffusive deposition, gravitational sedimentation, and airflow pattern within a ventilated airspace. Three dimensionless parameters TC, TD, and GS that characterize the relative effects of turbulent coagulation, turbulent diffusive deposition and gravitational settling, respectively, in a ventilated airspace were introduced to generalize the removal dynamics of airborne road dust. An environmental chamber test was carried out not only to determine the particle size distributions but also to verify the removal dynamics of airborne road dust in a ventilated airspace. Our results demonstrate that there is no significant variation for particle size distributions of road dust obtained from urban and suburban areas in north Taiwan region and both followed a lognormal distribution with average geometric mean diameter of 1.08 +/- 0.02 microm and geometric standard deviation of 2.59+/-0.03. Measured values match the simulated values with an r2 value of 0.93, whereas the overall RMSE value of 2.36 +/- 1.05 mg m(-3) is low, indicating that the ability to predict the removal dynamics of airborne road dust within a ventilated airspace using an average particle size based linear equation. Effects of TC, TD, GS, and various ventilation systems on the time-dependent road dust concentrations are also justified.

Air Movements↗