Observed time delays between solar H-alpha flares and microwave bursts as evidence for various energy transport mechanisms

1983 ◽  
Vol 274 ◽  
pp. 910 ◽  
Author(s):  
N. Kaempfer ◽  
A. Magun
1991 ◽  
Author(s):  
David E. Ramaker ◽  
K. C. Adiga ◽  
H. Zhang ◽  
M. Pivovarov ◽  
S. W. Baek

Author(s):  
Yimin Xuan ◽  
Qiang Li

Nanofluid is a solid-liquid mixture consisting of solid nanoparticles or nanofibers with sizes typically of 1–100 nm suspended in liquid. Thermal conductivity and heat transfer performance of nanofluids is superior to those of the original pure carrier fluids because the suspended nanoparticles remarkably improve energy exchange capability of the suspensions. In the present paper, the investigations efforts cover microscopic and mesoscaled approachs for the heat transfer enhancement mechanism of the nanofluid, flow and heat transfer mechanism and the relevant control methods of the magnetic fluid by suspending magnetic nanoparticles in base fluids, and some applications of nanofluid on a variety of thermal systems in order to understand energy transfer mechanism of nanofluids and guide future applications of nanofluids to thermal engineering.


Author(s):  
Ion-Hong Chao ◽  
Liang Pan ◽  
Cheng Sun ◽  
Xiang Zhang ◽  
Adrienne S. Lavine

Plasmonic lithography may become a mainstream nano-fabrication technique in the future. Experimental results show that feature size with 22 nm resolution can be achieved by plasmonic lithography. In the experiment, a plasmonic lens is used to focus the laser energy with resolution much higher than the diffraction limit and features are created in the thermally sensitive phase change material layer. The energy transport mechanisms are still not fully understood in the lithography process. In order to predict the lithography resolution and explore the energy transport mechanisms involved in the process, customized electromagnetic wave and heat transfer models are developed in COMSOL. Parametric studies on both operating parameters and material properties are performed for optimizing the lithography process. Parametric studies show that the lithography process can be improved by either reducing the thickness of the phase change material layer or using a material with smaller real refractive index for that layer.


2021 ◽  
pp. 2010704
Author(s):  
Eitan Oksenberg ◽  
Calvin Fai ◽  
Ivan G. Scheblykin ◽  
Ernesto Joselevich ◽  
Eva L. Unger ◽  
...  

2014 ◽  
Vol 2 (3) ◽  
Author(s):  
Ion-Hong Chao ◽  
Liang Pan ◽  
Cheng Sun ◽  
Xiang Zhang ◽  
Adrienne S. Lavine

Plasmonic lithography may become a mainstream nanofabrication technique in the future. Experimental results show that feature size with 22 nm resolution can be achieved by plasmonic lithography. In the experiment, a plasmonic lens (PL) is used to focus the laser energy with resolution much higher than the diffraction limit and features are created in the thermally sensitive phase-change material (PCM) layer. The energy transport mechanisms are still not fully understood in the lithography process. In order to predict the lithography resolution and explore the energy transport mechanisms involved in the process, customized electromagnetic wave (EMW) and heat transfer (HT) models were developed in comsol. Parametric studies on both operating parameters and material properties were performed to optimize the lithography process. The parametric studies show that the lithography process can be improved by either reducing the thickness of the phase-change material layer or using a material with smaller real refractive index for that layer.


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