scholarly journals Bonding of High Density Graphite by Brazing with Filler Metal and Sinter Bonding with Adhesive Resin using Direct Current Heating and Pressing-Study on Bonding of Carbon Materials (Report 1)-

2004 ◽  
Vol 22 (1) ◽  
pp. 149-155 ◽  
Author(s):  
Yasuhiro FUKAYA ◽  
Akihiko IKUTA ◽  
Tatsuhiko IHARA ◽  
Masahiro ANDOU ◽  
Toshirou KOBAYASHI
1994 ◽  
Vol 349 ◽  
Author(s):  
Yang-Duk Park ◽  
Chul-Woo Kim ◽  
Young-Dae Seo

ABSTRACTPreparation of high density graphite materials from coal tar pitch was investigated. The effect of β-resin content on the mechanical properties of graphite solid prepared from semi-coke, which was prepared by wet milling method, was examined. β-Resin content was effective for fabrication of green bodies without lamination and for improving the mechanical properties of graphite materials.


2015 ◽  
Vol 41 (2) ◽  
pp. 3128-3136 ◽  
Author(s):  
Ch. Jagadeeswara Rao ◽  
A. Ravi Shankar ◽  
C. Mallika ◽  
U. Kamachi Mudali

2019 ◽  
Vol 45 (9) ◽  
pp. 11694-11702 ◽  
Author(s):  
B. Madhura ◽  
E. Vetrivendan ◽  
Ch. Jagadeeswara Rao ◽  
P. Venkatesh ◽  
S. Ningshen

2009 ◽  
Vol 3 (2) ◽  
Author(s):  
J. Diaz ◽  
V. Bansal ◽  
A. Datta ◽  
J. Patel ◽  
M. Bikson

Transcranial Direct Current Stimulation (tDCS) is a non-invasive procedure where a weak electrical current (260 μA to 2 mA) is applied across the scalp to modulate brain function. tDCS has been applied for therapeutic purposes (e.g., addiction, depression, mood and sleep disorders) as well as cognitive performance enhancement (e.g., memory consolidation, motor learning, language recall). Despite safety and cost advantages, the developments of tDCS therapies have been restricted by spatial targeting concerns using existing two-channel systems. We have developed novel technology for High-Density tDCS (HD-tDCS) that improves spatial focality. Our hardware interface integrates a multichannel stimulating guide with existing two channel tDCS stimulators, and can be configured to target specific brain regions using computational models of current flow and multichannel array accessories. The hardware interface provides real time stimulation quality and safety feedback, and is designed to be MRI and TMS compatible. An electrical “tickle” feature enables skin pre-conditioning to minimize sensation. The full system includes the hardware interface, cable assemblies, head gear, tDCS electrodes, tDCS gel, and electrode adaptors. The head gear allows fixing the electrode adaptors over cortical targets using conventional EEG electrode coordinates. The electrode adaptors “fin” design, tDCS gel composition, and electrode shape are optimized to reduce sensation during direct current stimulation with 2 mA for up to 22 minutes. A five electrode system (4×1-C1), for implementing optimally focal “4×1 ring configuration” protocols, and an 8 electrode system (4×4-S1), that can be configured for “4×4 cortical strip stimulation”, are available. The entire system is robust, intuitive, and ultimately adaptable for home use. Our HD-tDCS system allows non-invasive, safe, and targeted modulation of selected cortical structures for electrotherapies that are individualized as well as optimized for a range of therapeutic applications.


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