نتایج جستجو برای: thermal barrier

تعداد نتایج: 302971  

2001
Johan J. Åkerman Ivan K. Schuller

The bias and temperature dependent resistance and magnetoresistance of magnetic tunnel junctions with and without intentional shorts through the insulating barrier were studied. Based on the experimental results, a set of quality criteria was formulated that enables the identification of barrier shorts. While the temperature and bias dependencies of the junction resistance and of the fitted bar...

2014
Srinivas Varanasi Stuart Bolton Thomas Siegmund J. Stuart Bolton Thomas H. Siegmund

It has been shown previously that a panel comprising a cellular array can yield a normal incidence transmission loss in a specified low frequency range that is significantly larger than that of a homogeneous panel having the same mass per unit area. The cellular metamaterial considered consists of a periodic arrangement of unit plates held in a grid-like frame. However, when the incident sound ...

Journal: :IEICE Electronic Express 2008
Tsuyoshi Funaki Tsunenobu Kimoto Takashi Hikihara

This paper experimentally studies the temperature dependencies of current–voltage (I–V) and capacitance–voltage (C–V) characteristics of SiC power devices, and discusses the relationships between physical phenomena and the measured characteristics in SiC. Two SiC Schottky barrier diodes (SBD) with different specifications were studied for temperatures ranging from 25 to 450◦C. Their I–V charact...

2007
Adam Whaley-Connell Javad Habibi Ravi Nistala Shawna A. Cooper Poorna R Karuparthi Melvin R Hayden Nathan Rehmer Vincent G DeMarco Bradley T Andresen Yongzhong Wei Carlos Ferrario James R Sowers Harry S Truman Harry S. Truman

2012

Under normal circumstances, epidermis must be as impermeable as possible except for a small amount of water loss to hydrate the outer layers of the SC. Although all living cells require water to function, some “dead” cells also require water to be metabolically active. As it is the case of corneocytes, epidermis must retain sufficient water to (a) hydrate the outer layers of the SC to maintain ...

Journal: :journal of biomedical physics and engineering 0
h. ghomi laser and plasma research institute, shahid beheshti university, tehran, iran s. mohades laser and plasma research institute, shahid beheshti university, tehran, iran n. navab safa laser and plasma research institute, shahid beheshti university, tehran, iran h. dabiri school of medicine, shahid beheshti university of medical sciences, tehran, iran

background: dielectric barrier discharge (dbd), a source of non-thermal plasma, is used in surface decontamination. objective: to study the effect of dbd plasma treatment, we evaluated the effect of plasma exposure time on inactivation of bacillus subtilis. results: applying the dbd plasma to the culture of b. subtilis caused complete sterilization of the surface without any thermal effects. in...

2015
Maeve Kelleher Claire Culliane Audrey Dunn Galvin Deirdre Murray Jonathan O B Hourihane

Rationale Food Allergy is a growing public health concern. There is observational evidence that exposure to food allergens across a disrupted skin barrier can lead to food sensitisation (FS) and food allergy (FA). This mechanism of action has subsequently been proven in murine studies. We sought to ascertain whether a non invasive measurement of skin barrier function at 3 time points in early i...

2004
Adrian G. Wills William P. Heath

We use multivariable feedback control to reduce variations in flow and back-pressure associated with two industrial separator units forming part of an edible oil refining line. This provides plant operators with a mechanism for increasing process yield without reducing product quality. Actuator limits are a natural consideration in the controller design since increased production rates require ...

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