نتایج جستجو برای: thermal heating

تعداد نتایج: 260067  

Journal: :Optics express 2015
Shen Xu Tianyu Wang David Hurley Yanan Yue Xinwei Wang

A novel transient thermal characterization technology is developed based on the principles of transient optical heating and Raman probing: time-domain differential Raman. It employs a square-wave modulated laser of varying duty cycle to realize controlled heating and transient thermal probing. Very well defined extension of the heating time in each measurement changes the temperature evolution ...

2005
Hui Wan Pin Su Samuel Fung Ali Niknejad Chenming Hu

In this paper, a BSIMSOI RF gate resistance model for FDSOI MOSFET is introduced and verified. With the addition of the gate resistance model, the RF characteristic of FDSOI MOSFET could be modeled well. Self-heating effect (SHE) will affect RF data fitting significantly. A simple method to extract thermal resistance is proposed.

2001
M. H. Lau J. Tang

Asparagus spears are sensitive to thermal treatments. Lengthy pasteurization at elevated temperatures may cause severe thermal degradation. In this research we explored the application of short-time microwave pasteurization for pickled asparagus in glass bottles and studied the effect of this process on the textural quality of the products in comparison with the conventional hot-water pasteuriz...

Journal: :Physical review letters 2011
Albert D Liao Justin Z Wu Xinran Wang Kristof Tahy Debdeep Jena Hongjie Dai Eric Pop

We investigate high-field transport in graphene nanoribbons (GNRs) on SiO(2), up to breakdown. The maximum current density is limited by self-heating, but can reach >3 mA/μm for GNRs ~15 nm wide. Comparison with larger, micron-sized graphene devices reveals that narrow GNRs benefit from 3D heat spreading into the SiO(2), which enables their higher current density. GNRs also benefit from lateral...

2015
Frederik Auffenberg Sebastian Stein Alex Rogers

We present a novel, personalised thermal comfort model and a heating agent using this model to reduce energy consumption with minimal comfort loss. At present, heating agents typically use simple models of user comfort when deciding on a set point temperature for the heating or cooling system. These models however generally fail to adapt to an individual user’s preferences, resulting in poor pe...

2006
Jelena Srebric Qingyan Chen Leon R. Glicksman

Design of a thermally comfortable indoor environment requires detailed information about distribution of air velocity, air temperature, relative humidity, and mean radiant temperature and about heating/cooling load in a space. This research has developed a coupled airflow-and-energy simulation program to calculate simultaneously the distributions of indoor airflow and thermal comfort and heatin...

Journal: :Journal of drugs in dermatology : JDD 2014
Douglas J Key

BACKGROUND This study incorporates concurrent thermal camera imaging as a means of both safely extending the length of each treatment session within skin surface temperature tolerances and to demonstrate not only the homogeneous nature of skin surface temperature heating but the distribution of that heating pattern as a reflection of localization of subcutaneous fat distribution. METHODS Five...

2004
David Oldham Huw Davies Adrian Lenardic

[1] Stratified stable layered mantle convection in a three-dimensional (3-D) spherical shell is investigated for a range of depth of layer, intrinsic density contrast between the layers (Dr), and heating mode. Three heating modes are studied: internal heating, bottom heating across core-mantle boundary, and both combined. For each heating mode, layers were investigated centered at depths from 5...

Journal: :The Annals of occupational hygiene 2010
Faming Wang Hansup Lee

We studied the heating efficiency of an electrically heated vest (EHV), its relationship to the microclimate temperature distribution in a three-layer clothing ensemble, and the effect of an EHV on the clothing's total thermal insulation by both theoretical analysis and thermal manikin measurements. The heat losses at different ambient conditions and heating states were recorded and the heating...

2006
K. E. Korreck T. H. Zurbuchen S. T. Lepri J. M. Raines

Shock heating and particle acceleration processes are some of the most fundamental physical phenomena of plasma physics with countless applications in laboratory physics, space physics, and astrophysics. This study is motivated by previous observations of non-thermal heating of heavy ions in astrophysical shocks (Korreck et al. 2004). Here, we focus on shocks driven by Interplanetary Coronal Ma...

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