Micro-perforated panel (MPP) can be used as non-fibrous acoustic absorber which can provide broadband sound absorption performance. In this study, a sub-structuring methodology based on the Patch Transfer Function (PTF) approach to deal with duct silencers with MPP absorbers and internal partitions is proposed, and the sound attenuation performance of such silencers is investigated. Reactive si...

Skin applications of non-thermal atmospheric pressure plasma (NTAPP) have been at-tracting attention from medical and cosmetic aspects. The reactive species generated sources known to play important roles in the skin. For proper applications, it is essential know how they diffuse into In this study, penetration active NTAPP through a skin model was analyzed by UV absorption spectroscopy. diffus...

The Treponema pallidum haemagglutination (TPHA) test was carried out on 274 sera known to show biological false positive reactions to reagin tests for syphilis. The Treponema pallidum immunization (TPI) and fluorescent treponemal antibody absorption (FTA-ABS) tests were non-reactive on all these sera. Thirty-one or 11.3% showed reactive results in the TPHA test. Sera from 267 people who had lep...

<p class="Abstract">The conventional three-phase alternating current (AC) to direct (DC) converter can be modified using two isolated-gate bipolar transistor (IGBT) as by-pass switches connected tapping points on the secondary side of transformer. This scheme yields a reduction in both harmonic contents and reactive volt-ampere absorption. possibly eliminates need for an on-load tap-chang...

The mouths of three human infants were examined from birth to age 2 years to detect colonization of Actinomyces naeslundii genospecies 1 and 2. These bacteria did not colonize until after tooth eruption. The diversity of posteruption isolates was determined by ribotyping. Using immunoblotting and enzyme-linked immunosorbent assay, we determined the reactivity of secretory immunoglobulin A (SIgA...