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Dive into the research topics where Sobi Thomas is active.

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Featured researches published by Sobi Thomas.


international conference on control automation and systems | 2013

Bio-inspired robot platform powered by a commercial PEM fuel cell

SungMok Ha; Sobi Thomas; Osung Kwon; Sang C. Lee

Robots have come up as an emerging technology to assist humans in performing those repetitive and dangerous tasks which humans prefer not to do, or are unable to do due to size limitations and extreme environmental conditions. So the design of robots is required to be stringent to be able to operate at any environmental conditions. A wheeled robot is the one mostly associated in mobile robot operations. But a wheeled robot can travel only on smooth surface and not at irregular surface conditions. To overcome this, the robots mobile platform equipped with an efficient structure and function is required. Another issue with mobile robot is the power source which is generally battery. The disadvantage of battery is its low efficiency and low energy density. To override the above two issues, A competent robot platform suitable for irregular areas is designed and the conventional power source is replaced with a fuel cell to develop an efficient and environmental independent robot.


International Journal of Hydrogen Energy | 2016

A comprehensive review of PBI-based high temperature PEM fuel cells

Samuel Simon Araya; Fan Zhou; Simon Lennart Sahlin; Jakob Rabjerg Vang; Sobi Thomas; Xin Gao; Christian Jeppesen; Søren Knudsen Kær


Applied Energy | 2014

Graphical and mathematical analysis of fuel cell/battery passive hybridization with K factors

Sang C. Lee; Osung Kwon; Sobi Thomas; Sam Park; Gyeungho Choi


International Journal of Hydrogen Energy | 2014

Online health monitoring of a fuel cell using total harmonic distortion analysis

Sobi Thomas; Sang C. Lee; A. K. Sahu; Sam Park


Applied Energy | 2016

An experimental and simulation study of novel channel designs for open-cathode high-temperature polymer electrolyte membrane fuel cells

Sobi Thomas; Alex Bates; Sam Park; A. K. Sahu; Sang C. Lee; Byung Rak Son; Joo Gon Kim; Dong-Ha Lee


Applied Energy | 2017

Experimental study to distinguish the effects of methanol slip and water vapour on a high temperature PEM fuel cell at different operating conditions

Sobi Thomas; Jakob Rabjerg Vang; Samuel Simon Araya; Søren Knudsen Kær


International Journal of Hydrogen Energy | 2017

New load cycling strategy for enhanced durability of high temperature proton exchange membrane fuel cell

Sobi Thomas; Christian Jeppesen; Thomas Steenberg; Samuel Simon Araya; Jakob Rabjerg Vang; Søren Knudsen Kær


Journal of Power Sources | 2018

The influence of phosphoric acid migration on the performance of high temperature polymer electrolyte fuel cells

J. Halter; Sobi Thomas; Søren Knudsen Kær; Thomas J. Schmidt; Felix N. Büchi


Journal of Power Sources | 2017

Fault detection and isolation of high temperature proton exchange membrane fuel cell stack under the influence of degradation

Christian Jeppesen; Samuel Simon Araya; Simon Lennart Sahlin; Sobi Thomas; Søren Juhl Andreasen; Søren Knudsen Kær


224th ECS Meeting (October 27 – November 1, 2013) | 2013

A High Energy Density System by Thin Metallic Bipolar Plates

Alex Bates; Santanu Mukherjee; Sang C. Lee; Osung Kwon; SungMok Ha; Sobi Thomas; Dong-Ha Lee; Sam Park

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Sang C. Lee

Daegu Gyeongbuk Institute of Science and Technology

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Sam Park

University of Louisville

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Osung Kwon

Daegu Gyeongbuk Institute of Science and Technology

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SungMok Ha

Daegu Gyeongbuk Institute of Science and Technology

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A. K. Sahu

Council of Scientific and Industrial Research

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