International Journal:

- Aiman Omer, Reza Ghorbani, Kenji Hashimoto, Hun-ok Lim and Atsuo Takanishi. " A Novel Design for Adjustable Stiffness Artificial Tendon for the Ankle Joint of a Bipedal Robot: Modeling & Simulation ”, Machines 2016, Vol. 4, Issue 1; doi:10.3390/machines4010001

- Takasei OKANO, Salvatore SESSA, and Aiman Omer." Discussion on PBL Class from View Point of Difference of Learning Style between Undergraduate and Graduate Students in Egypt ", Journal of JSEE, Vol. 62 (2014) No. 5, pp. 45-49. (in Japanese)

- Aiman Omer, Kenji Hashimoto,Hun-ok Lim and Atsuo Takanishi." Study of Bipedal Robot Walking Motion in Low Gravity: Investigation and Analysis ", Int J Adv Robot Syst, 2014, 11:139. doi: 10.5772/58731 "

Book Chapter:

- Aiman Musa M. Omer, Reza Ghorbani,Hun-ok Lim and Atsuo Takanishi." Semi-Passive Dynamic Walking Approach for Bipedal Humanoid Robot Based on Dynamic Simulation ", Biped Robots (Book), 2011.

- Aiman Musa M. Omer, Hun-ok Lim and Atsuo Takanishi." Dynamic-Based Simulation for Humanoid Robot Walking Using Walking Support System ", Contemporary Robotics - Challenges and Solutions (Book), 2009.

Domestic Conference:

- Aiman Musa M. Omer, Hun-ok Lim, and Atsuo Takanishi." “Simulation Based Study of a Bipedal Robot Forward Jumping Motion Approach on Moon Gravity” ", The 28th Annual Conference of the Robotics Society of Japan, Nagoya, Japan, September 2010.

- Aiman Musa M. Omer, Reza Ghorbani, Hun-ok Lim, and Atsuo Takanishi. “Simulation study of a semi-passive dynamic walking for a humanoid bipedal robot with high degrees of freedom” , The 27th Annual Conference of the Robotics Society of Japan, Yokohama, Japan, September 2009.

- Przemyslaw Kryczka, Kosuke Nishikawa, Juri Shimizu, Kenji Hashimoto, Aiman Musua M. Omar, Hideki Kondo, Kentaro Hattori, Yuki Takezaki, Hun-ok Lim, Atsuo Takanishi, Keisuke Suga and Keisuke Kato. “Development of Disturbance Force Generator for Humanoid Robots”, The 27th Annual Conference of the Robotics Society of Japan, Yokohama, Japan, September 2009.

- Aiman Musa M. Omer, Yu Ogura, Hideki Kondo, Hun-ok Lim, and Atsuo Takanishi. “Development of Biped Humanoid Robot as Human Motion Simulator 6th Report: Dynamic Simulation for Biped Walking with Walk-assist Machine”, The 25th Annual Conference of the Robotics Society of Japan, Chiba, Japan, September 2007.

International Conference:

- Kenji Hashimoto, Kosuke Nishikawa, Juri Shimizu, Aiman Omer, Hun-ok Lim and Atsuo Takanishi. " Disturbance Force Generator for Biped Robots ”, The 21th CISM-IFToMM Symposium on Robot Design, Dynamics, and Control (RoManSy2016), pp. 267-274, Udine, Italy, June 2016.

- Aiman Omer, Reza Ghorbani, Kenji Hashimoto, Hun-ok Lim and Atsuo Takanishi. " Development of a Novel Bi-directional Adjustable Stiffness Artificial Tendon for Energy Efficient Bipedal Walking ”, The 6th International Conference on Advanced Mechatronics (ICAM2015), pp.124-125, Tokyo, December 2015.

- Aiman Omer, Kenji Hashimoto, Hun-ok Lim and Atsuo Takanishi. " Approach Toward Development of a New Method for Bipedal Running Trajectory Planning ”, The 6th International Conference on Advanced Mechatronics (ICAM2015), pp.286-287, Tokyo, December 2015.

- Aiman Omer, Taufik Sulaiman, Reza Ghorbani, Kenji Hashimoto, Hun-ok Lim, and Atsuo Takanishi." Development of Adjustable Stiffness Mechanism for Bipedal Walking Robot ", The 2nd IFToMM Asian Conference on Mechanism and Machine Science, Paper ID 117, Tokyo, Japan, November, 2012.

- Aiman Musa M. Omer, Kenji Hashimoto, Hun-ok Lim, and Atsuo Takanishi." Initial Study of Bipedal Robot Locomotion Approach on Different Gravity Levels ", 2011 IEEE/SICE International Symposium on System Integration (SI International 2011), pp. 802-807, Kyoto, Japan, December 2011.

- Przemyslaw Kryczka, Kenji Hashimoto, Hideki Kondo, Aiman Omer, Hun-ok Lim, and Atsuo Takanishi." Stretched knee walking with novel inverse kinematics for humanoid robots ", 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2011), pp. 3221-3226, San Francisco, CA, USA, September 2011.

- Aiman Musa M. Omer, Hun-ok Lim, and Atsuo Takanishi." Simulation Study of a Bipedal Robot Jumping Motion Approach on Moon Gravity ", IEEE International Conference on Robotics and Biomimetics (Robio 2010), pp. 218-222, Tianjin, China, December 2010.

- Aiman Musa M. Omer, Hun-ok Lim, and Atsuo Takanishi." Simulation of a Humanoid Robot walking gait on Moon Surface ", The 18th CISM-IFToMM Symposium on Robot Design, Dynamics, and Control (RoManSy2010), pp. 241-248, Udine, Italy, July 2010.

- Aiman Musa M. Omer, Reza Ghorbani, Hun-ok Lim, and Atsuo Takanishi." Simulation based study of a semi-passive dynamic walking for a human size humanoid robot ", 12th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines (CLAWAR2009), pp. 653-660, Istanbul, Turkey, September 2009.

- Aiman Musa M. Omer, Reza Ghorbani, Hun-ok Lim, and Atsuo Takanishi." Semi-Passive Dynamic Walking for Biped Walking Robot Using Controllable Joint Stiffness Based on Dynamic Simulation ", International Conference on Advanced Intelligent Mechatronics (AIM 2009), pp. 1600-1605, Singapore, July 2009.

- Aiman Musa M. Omer, Reza Ghorbani, Hun-ok Lim, and Atsuo Takanishi." Semi-Passive Dynamic Walking for Humanoid Robot Using Controllable Spring Stiffness on the Ankle Joint ", The 4th International Conference on Autonomous Robots and Agents (ICARA 2009), pp.681-685, Wellington, New Zealand, February, 2009.

- Aiman Musa M. Omer, Hideki Kondo, Hun-ok Lim, and Atsuo Takanishi." Development of Walking Support System Based on Dynamic Simulation ", IEEE International Conference on Robotics and Biomimetics (Robio 2008), pp. 137-142., Bangkok, Thailand, February, 2009.

- Aiman Musa M. Omer, Reza Ghorbani, Hun-ok Lim, and Atsuo Takanishi." Simulation of Semi-Passive Dynamic Walking For Biped Walking Robot ", IEEE International Conference on Robotics and Biomimetics (Robio 2008), pp. 360-364., Bangkok, Thailand, February, 2009.

- Aiman Musa M. Omer, Hideki Kondo, Hun-ok Lim, and Atsuo Takanishi." Simulation of Walking Support System Using Humanoid Robot ", 2008 IEEE/SICE International Symposium on System Integration (SI International 2008), pp. 48-53, Nagoya, Japan, December 2008.

- Aiman Musa M. Omer, Reza Ghorbani, Hun-ok Lim, and Atsuo Takanishi." Simulation of Semi-Passive Dynamic Walking For Humanoid Robots ", 8th International Conference on Humanoid Robot (Humanoids 2008), pp. 541-544, Daejeon, Korea, December 2008.

- Aiman Musa M. Omer, Yu Ogura, Hideki Kondo, Hun-ok Lim, and Atsuo Takanishi." Development of a Rehabilitation System Using Humanoid Robot ", The 5th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI 2008), pp.687-692, Seoul, South Korea, November 2008.

- Aiman Musa M. Omer, Hun-ok Lim, and Atsuo Takanishi." Simulations for Elderly Support Walking Device with Humanoid Robot ", The 6th International Conference of the International Society for Gerontechnology (ISG08), No. 43, Pisa, Italy, June 2008.

- Aiman Musa M. Omer, Yu Ogura, Hideki Kondo, Hun-ok Lim, and Atsuo Takanishi." Dynamic-based Simulation for Humanoid Robot Walking Using Walking Support System ", The 5th International Conference on Informatics in Control, Automation and Robotics (ICINCO2008), pp.23-28, Funchal, Madeira - Portugal, May 2008.

- Aiman Musa M. Omer, Yu Ogura, Hideki Kondo, Akitoshi Morishima, Giuseppe Carbone, Marco Ceccarelli, Hun-ok Lim, and Atsuo Takanishi." Development of A Humanoid Robot Having 2-DOF Waist and 2-DOF Trunk ", 5th IEEE-RAS International Conference on Humanoid Robots (Humanoids 2005), pp. 333-338, Tsukuba, Japan, December 2005.