Acute and Chronic Exposure to 900 MHz Radio Frequency Radiation Activates p38/JNK-mediated MAPK Pathway in Rat Testis

Author(s):  
Hakan Er ◽  
Gizem Gamze Tas ◽  
Bikem Soygur ◽  
Sukru Ozen ◽  
Leyla Sati
2003 ◽  
Vol 31 (3) ◽  
pp. 197-254 ◽  
Author(s):  
Riadh W. Y. Habash ◽  
Lynn M. Brodsky ◽  
William Leiss ◽  
Daniel Krewski ◽  
Michael Repacholi

1996 ◽  
Vol 53 (17) ◽  
pp. 11332-11335 ◽  
Author(s):  
C. Strunk ◽  
V. Bruyndoncx ◽  
C. Van Haesendonck ◽  
V. V. Moshchalkov ◽  
Y. Bruynseraede ◽  
...  

2012 ◽  
Vol 53 (2) ◽  
pp. 176-183 ◽  
Author(s):  
Han-Na KIM ◽  
Na-Kyung HAN ◽  
Mi-Na HONG ◽  
Sung-Gil CHI ◽  
Yun-Sil LEE ◽  
...  

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jared Allison ◽  
John Pearce ◽  
Joseph Beaman ◽  
Carolyn Seepersad

Purpose Additive manufacturing (AM) of thermoplastic polymers for powder bed fusion processes typically requires each layer to be fused before the next can be deposited. The purpose of this paper is to present a volumetric AM method in the form of deeply penetrating radio frequency (RF) radiation to improve the speed of the process and the mechanical properties of the polymer parts. Design/methodology/approach The focus of this study was to demonstrate the volumetric fusion of composite mixtures containing polyamide (nylon) 12 and graphite powders using RF radiation as the sole energy source to establish the feasibility of a volumetric AM process for thermoplastic polymers. Impedance spectroscopy was used to measure the dielectric properties of the mixtures as a function of increasing graphite content and identify the percolation limit. The mixtures were then tested in a parallel plate electrode chamber connected to an RF generator to measure the heating effectiveness of different graphite concentrations. During the experiments, the surface temperature of the doped mixtures was monitored. Findings Nylon 12 mixtures containing between 10% and 60% graphite by weight were created, and the loss tangent reached a maximum of 35%. Selective RF heating was shown through the formation of fused composite parts within the powder beds. Originality/value The feasibility of a novel volumetric AM process for thermoplastic polymers was demonstrated in this study, in which RF radiation was used to achieve fusion in graphite-doped nylon powders.


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