• Active Lift Inversion Process of Heaving Wing in Uniform Flow by Temporal Change of Wing Kinematics
  Makoto Iima, Naoto Yokoyama, and Kei Senda
  Physical Review E (2019). (in Press)

• Neuromusculoskeletal Model that Walks and Runs across a Speed Range with a Few Motor Control Parameter Changes Based on the Muscle Synergy Hypothesis
  Shinya Aoi, Tomohiro Ohashi, Ryoko Bamba, Soichiro Fujiki, Daiki Tamura, Tetsuro Funato, Kei Senda, Yury Ivanenko, and Kazuo Tsuchiya
  Scientific Reports, 9, 369, 13 pp (2019.1.23).
  doi: 10.1038/s41598-018-37460-3

• Control of Pitch Attitude by Abdomen During Forward Flight of Two-Dimensional Butterfly
  Jeeva Jayakumar, Kei Senda, and Naoto Yokoyama
  Journal of Aircraft, 55-6, 2327-2337 (2018.11).
  doi: 10.2514/1.C034767

• Sampling Policy that Improves Performance of Policy in Reinforcement Learning
  Kei Senda and RitsuSamuel Otsubo
  Transactions of Society of Instrument and Control Engineers, 54-3, 365-372 (2018.3). (in Japanese)

• Reinforcement Learning of Robotic Manipulators
  Kei Senda and Yurika Tani
  Adaptive Control for Robotic Manipulators, Dan Zhang and Bin Wei (Eds.), CRC Press, Boca Raton, FL, USA, 49-69 (2016.11.24)
  doi: 10.1201/9781315166056.

• Efficient Algorithms for Reinforcement Learning by Linear Programming
  Kei Senda and Koyu Amano
  Transactions of Society of Instrument and Control Engineers, 52-10, 566-572 (2016.10). (in Japanese)

• Robust Reinforcement Learning for Variations Represented by an Infinite Plant Set
  Kei Senda, RitsuSamuel Otsubo, and Yurika Tani
  Transactions of Society of Instrument and Control Engineers, 52-9, 474-480 (2016.9). (in Japanese)

• Straight walk instability induced by body flexibility helps turning maneuver in multilegged locomotion: a robotics approach
  Shinya Aoi, Takahiro Tanaka, Soichiro Fujiki, Tetsuro Funato, Kei Senda, Kazuo Tsuchiya
  Scientific Reports, 6, 30199, 10 pp (2016.7.22)
  doi: 10.1038/srep30199.

• Efficient Computation Methods for Reinforcement Learning
  Kei Senda
  Systems, Control and Information, 60-6, 238-243 (2016.6). (in Japanese)

• Approximation Bayesian Reinforcement Learning based on Estimation of Plant Variation and its Application to Peg-in-Hole Task
  Kei Senda, Toru Hishinuma, and Yurika Tani
  Transactions of the Institute of Systems, Control and Information Engineers, 29-3, 122-129 (2016.3). (in Japanese)

• Localized Wrinkle Behavior near Fixed Boundaries in Flat and Cylindrical Membranes
  Kei Senda, Mario Petrovic, and Kei Nakanishi
  Journal of Spacecraft and Rockets, 52-4, 1074-1090 (2015.7-8)
  doi: 10.2514/1.A33213.

• Wrinkle Generation without Bifurcation in a Shear-Enforced Rectangular Membrane with Free Boundaries
  Kei Senda, Mario Petrovic, and Kei Nakanishi
  Journal of Spacecraft and Rockets, 52-4, 1057-1073 (2015.7-8)
  doi: 10.2514/1.A33018.

• Adaptation Mechanism of Interlimb Coordination in Human Split-belt Treadmill Walking through Learning of Foot Contact Timing: a Robotics Study
  Soichiro Fujiki, Shinya Aoi, Tetsuro Funato, Nozomi Tomita, Kei Senda, and Kazuo Tsuchiya
  Journal of the Royal Society Interface, 12, 20150542, 15 pp (2015.7.28)
  doi: http://dx.doi.org/10.1098/rsif.2015.0542.

• Wrinkle Generation in Shear-Enforced Rectangular Membrane
  Kei Senda, Mario Petrovic, and Kei Nakanishi
  Acta Astronautica, 111, 110-135 (2015.6-7)
  doi: 10.1016/j.actaastro.2015.02.022.

• Performance Improvement of the PD-based Bilateral Teleoperator with Time Delay by Introducing Relative D-control
  Takashi Imaida and Kei Senda
  Advanced Robotics, 29-6, 385-400 (2015.3)
  doi: 10.1080/01691864.2014.993797.

• Acceleration of Reinforcement Learning by Policy Evaluation Using Nonstationary Iterative Method
  Kei Senda, Suguru Hattori, Toru Hishinuma, and Takehisa Kohda
  IEEE Transactions on Cybernetics, 44-12, 2696-2705 (2014.12)
  doi: 10.1109/TCYB.2014.2313655.

• Autonomous Robust Skill Generation Using Reinforcement Learning with Plant Variation
  Kei Senda and Yurika Tani
  Advances in Mechanical Engineering, Vol. 2014, 276264, 12 pp (2014.4.24)
  doi: 10.1155/2014/276264.

• Initial Operation and Deployment Experiment of Inflatable Extension Mast in SIMPLE on JEM Exposure Platform in ISS
  Ken Higuchi, Yasuyuki Miyazaki, Kosei Ishimura, Hiroshi Furuya, Hiroaki Tsunoda, Kei Senda, Akihito Watanabe, Nobuyoshi Kawabata, Takeshi Kuratomi, and SIMPLE Project Team
  Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan
  ISTS Special Issue: 12-ists29, Pc_1-Pc_7 (2014.4.23).

• Acceleration of Reinforcement Learning by Efficient Policy Evaluation
  Kei Senda, Suguru Hattori, and Takehisa Kohda
  Transactions of Society of Instrument and Control Engineers, 49-7, 696-702 (2013.7). (in Japanese)

• Hysteresis in the Metachronal-tripod Gait Transition of Insects: A Modeling Study
  Soichiro Fujiki, Shinya Aoi, Tetsuro Funato, Nozomi Tomita, Kei Senda, Kazuo Tsuchiya
  Physical Review E, 88, 012717-1-7 (2013)
  doi: 10.1103/PhysRevE.88.012717.

• Adaptive Splitbelt Treadmill Walking of a Biped Robot Using Nonlinear Oscillators with Phase Resetting
  Soichiro Fujiki, Shinya Aoi, Tsuyoshi Yamashita, Tetsuro Funato, Nozomi Tomita, Kei Senda, Kazuo Tsuchiya
  Autonomous Robots, 35, 15-26 (2013)
  doi: 10.1007/s10514-013-9331-6.

• Aerodynamic Forces and Vortical Structures in Flapping Butterfly’s Forward Flight
  Naoto Yokoyama, Kei Senda, Makoto Iima, Norio Hirai
  Physics of Fluids, 25, 021902, 24 pp (2013)
  doi: 10.1063/1.4790882.

• Contributions of Phase Resetting and Interlimb Coordination to the Adaptive Control of Hindlimb Obstacle Avoidance During Locomotion in Rats: a Simulation Study
  Shinya Aoi, Takahiro Kondo, Naohiro Hayashi, Dai Yanagihara, Sho Aoki, Hiroshi Yamaura, Naomichi Ogihara, Tetsuro Funato, Nozomi Tomita, Kei Senda, Kazuo Tsuchiya
  Biological Cybernetics, 107, 201-216 (2013)
  doi: 10.1007/s00422-013-0546-6.

• A Stability-Based Mechanism for Hysteresis in the Walk-Trot Transition in Quadruped Locomotion
  Shinya Aoi, Daiki Katayama, Soichiro Fujiki, Nozomi Tomita, Tetsuro Funato, Tsuyoshi Yamashita, Kei Senda, Kazuo Tsuchiya
  Journal of the Royal Society Interface, 10, 20120908, 12 pp (2013)
  doi: http://dx.doi.org/10.1098/rsif.2012.0908.

• Controlling Flow Structures by Wing Motion in a Flapping-flight Model
  Makoto Iima, Naoto Yokoyama, Norio Hirai, Kei Senda
  Advances in Science and Technology, Mining Smartness from Nature, 84, 59-65 (2013).

• Effects of Structural Flexibility of Wings in Flapping Flight of Butterfly
  K. Senda, T. Obara, T. Kitamura, N. Yokoyama, N. Hirai, M. Iima
  Bioinspiration & Biomimetics, 7-2, 025002, 15 pp (2012.5)
  doi: 10.1088/1748-3182/7/2/025002.

• Modeling and Emergence of Flapping Flight of Butterfly Based on Experimental Measurements
  K. Senda, T. Obara, T. Kitamura, T. Nishikata, N. Hirai, M. Iima, N. Yokoyama
  Robotics and Autonomous Systems, 60-5, 670-678 (2012.5).

• Sampling Policy that Guarantees Reliability of Optimal Policy in Reinforcement Learning
  K. Senda, Y. Iwasaki, S. Fujii
  Transactions of Society of Instrument and Control Engineers, 46-5, 274-280(2010.5). (in Japanese)

• Simple and Small De-orbiting Package for Nano-Satellites Using an Inflatable Balloon
  S. Nakasuka, K. Senda, A. Watanabe, T. Yajima, H. Sahara
  Transactions of Japan Society for Aeronautical and Space Sciences, Space Technology Japan
  ISTS Special Issue: 7-ists26, Tf_31-Tf_36 (2009).

• On-Orbit Verification of Space Inflatable Structures
  T. Aoki, H. Furuya, K. Ishimura, Y. Miyazaki, K. Senda, H. Tsunoda, K. Higuchi, J. Ishizawa, N. Kishimoto, R. Sakai, A. Watanabe, K. Watanabe
  Transactions of Japan Society for Aeronautical and Space Sciences, Space Technology Japan
  ISTS Special Issue: 7-ists26, Tc_1-Tc_5 (2009).

• Hardware and Numerical Experiments of Autonomous Robust Skill Generation Using Reinforcement Learning
  K. Senda, T. Kondo, Y. Iwasaki, S. Fujii, N. Fujiwara, N. Suganuma
  Journal of Robotics and Mechatronics, 20-3, 350-357 (2008.6).

• Flexible Manipulators – An Overview
  M. O. Tokhi, A. K. M. Azad, H. R. Pota, K. Senda
  in Flexible Robot Manipulators – Modelling, Simulation and Control
  M. O. Tokhi and A. K. M. Azad (Eds.), The Institution of Engineering and Technology (IET), London, United Kingdom, 1-21 (2008.5).

• Modelling and Control of Space Manipulators with Flexible Links
  K. Senda
  in Flexible Robot Manipulators – Modelling, Simulation and Control
  M. O. Tokhi and A. K. M. Azad (Eds.), The Institution of Engineering and Technology (IET), London, United Kingdom, 345-365 (2008.5).

• The Optimal Policy Reliability-Guaranteed by Sampling Condition in Reinforcement Learning
  K. Senda and S. Fujii
  Transactions of Society of Instrument and Control Engineers, 44-1, 71-77 (2008.1). (in Japanese)

• Reinforcement Learning That Optimizes Both Performance and Reliability of Policy
  K. Senda and S. Fujii
  Transactions of Society of Instrument and Control Engineers, 43-11, 1030-1036 (2007.11). (in Japanese)

• Stabilization of Flapping-of-Wing Flight of Butterfly, Considering Wakes
  K. Senda, M. Sawamoto, M. Kitamura, T. Tanaka
  in Bio-mechanisms in Swimming and Flying, Springer, 193-204 (2007.10).

• A New Concept of Solar Power Satellite: Tethered-SPS
  S. Sasaki, K. Tanaka, K. Higuchi, N. Okuizumi, S. Kawasaki, N. Shinohara, K. Senda, K. Ishimura
  Acta Astronautica, 60-3, 153-165 (2007.2).

• Efficient Algorithm for Reinforcement Learning with Partial Variation
  K. Senda, S. Fujii
  Transactions of Society of Instrument and Control Engineers, 42-8, 959-965 (2006) (in Japanese).

• Acceleration of Reinforcement Learning by Estimating State Transition Probability Model
  S. Fujii, K. Senda, S. Mano
  Transactions of Society of Instrument and Control Engineers, 42-1, 47-53 (2006) (in Japanese).

• Vehicle Front Environment Recognition Using Stereo Vision
  N. Suganuma, N. Fujiwara, K. Senda
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 71-703, 881-887 (2005) (in Japanese).

• Lane Marker Extraction on the Highway Using Stereovision System and Active Contour Model
  N. Suganuma, N. Fujiwara, K. Senda
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 70-700, 3524-3529 (2004) (in Japanese).

• Acceleration of Reinforcement Learning by Using State Transition Probability Model
  K. Senda, S. Fujii, S. Mano
  K. Murase, L.C.Jain, K. Sekiyama and T. Asakura (eds.), International Series on Natural and Artificial Intelligence Vol. 1, Advanced Knowledge International, Adelaide, Australia, 432-439 (2004).

• Conceptual Study of SSPS Demonstration Experiment
  S. Sasaki, K. Tanaka, S. Kawasaki, M. Shinohara, K. Higuchi, N. Okuizumi, K. Senda, K. Ishimura, and USEF SSPS Study Team
  The Radio Science Bulleti, 310 (September), International Union of Radio Science, Gent, Belgium, ISSN 1024-4530, 9-14 (2004).

• Tethered Solar Power Satellite
  S. Sasaki, K. Tanaka, K. Higuchi, N. Okuizumi, S. Kawasaki, M. Shinohara, K. Senda, K. Ishimura, and USEF SSPS Study Team
  JAXA Research and Development Report, ISSN 1349-113, JAXA RR-03-0005E (2004).

• On Flapping-of-Wings Flight of A Butterfly
  K. Senda, T. Tanaka, and M. Sawamoto
  Dynamic Systems Approach for Embodiment and Sociality, K. Murase and T. Asakura, (eds.), International Series on Advanced Intelligence Vol. 6, Advanced Knowledge International, Adelaide, Australia, 418-423 (2003).

• Hardware Experiments of A Truss Assembly by An Autonomous Space Learning Robot
  K. Senda, Y. Murotsu, A. Mitsuya, H. Adachi, S. Ito, J. Shitakubo, and T. Matsumoto
  Journal of Spacecraft and Rockets, 39-2, 267-273 (2002)
  doi: 10.2514/2.3808.

• Neural Motion Generator for Feedback Attitude Control of Space Robot
  K. Senda and T. Tanaka
  Machine Intelligence and Robotic Control Journal, 3-3, 129-136 (2001).

• Quasioptimal Dynamics-Based Control of Redundant Manipulators
  K. Senda
  Transactions of Society of Instrument and Control Engineers, 37-3, (2001) (in Japanese).

• Methodology for Control of a Space Robot with Flexible Links
  K. Senda and Y. Murotsu
  IEE Proceedings—Control Theory and Applications, 147-6, 562-569 (2000).

• Applications of Magnesium Alloys for Aerospace Structure Systems
  H. Furuya, N. Kogiso, S. Matunaga, and K. Senda
  Materials Science Forum, 350-351, 341-348 (2000).

• Hardware Experiments of Autonomous Space Robot
  K. Senda, Y. Murotsu, A. Mitsuya, H. Adachi, S. Ito, and J. Shitakubo
  Journal of Robotics and Mechatronics, 12-4, 343-350 (2000).

• Efficient Formulation of Inverse Dynamics and Control Application to a Planar Variable Geometry Truss
  K. Senda, H. Kawano, A. Ando, and Y. Murotsu
  Smart Materials and Structures, 8-6, 839-846 (1999).

• Adaptive Control of Free-Flying Space Robot with Position/Attitude Control System
  K. Senda, H. Nagaoka, and Y. Murotsu
  AIAA Journal of Guidance, Control, and Dynamics, 22-3, 488-490 (1999)
  doi: 10.2514/2.7630.

• Vibration Suppression of a Flexible Concrete Distributor Arm (2nd Report, Application to Actual Arm)
  T. Nunohara, Y. Murotsu, K. Senda, K. Matoba
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 65-632, 1381-1387 (1999). (in Japanese)

• Adaptive Control of Space Robots
  K. Senda, H. Nagaoka, Y. Murotsu
  Journal of the Robotics Society of Japan, 16-6, 832-838 (1998). (in Japanese)

• Position/Attitude Control for a Ground Testbed Simulating a Space Robot
  K. Senda, Y. Murotsu, H. Nagaoka, A. Mitsuya
  Journal of the Robotics Society of Japan, 16-6, 824-831 (1998). (in Japanese)

• Vibration Suppression of a Flexible Concrete Distributor Arm (1st Report, Vibration Suppression Using DVFB)
  T. Nunohara, Y. Murotsu, K. Senda
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 64-621, 1514-1519 (1998). (in Japanese)

• Control of Planar Space Robots Using Smooth and Time-Invariant Feedback
  R. Mukherjee, M. Kamon, K. Senda
  Journal of the Robotics Society of Japan, 16-3, 399-406 (1998). (in Japanese)

• Control Experiments of a Docking Mechanism Composed of a Planar Variable Geometry Truss
  Y. Murotsu, K. Senda, A. Mitsuya, H. Kawano, and A. Ando,
  Journal of Intelligent Material Systems and Structures, 8-9, 784-791 (1997).

• Efficient Formulation of Inverse Dynamics of a Planar Variable Geometry Truss
  K. Senda, H. Kawano, Y. Murotsu
  Journal of the Robotics Society of Japan, 14-3, 422-427 (1996). (in Japanese)

• Space Robotics Research at the University of Osaka Prefecture —Control of Free-Flying Robots with Structurally Flexible Manipulators—
  Y. Murotsu and K. Senda
  Journal of Robotics and Mechatronics, 6-5, 397-401 (1994).

• Control Experiments of Flexible Manipulator Mounted on a Free-Flying Space Robot
  K. Senda, Y. Murotsu, A. Mitsuya, T. Nunohara, K. Yamane
  Journal of the Robotics Society of Japan, 12-6, 899-904 (1994). (in Japanese)

• Parameter Identification of Unknown Object Handled by Free-Flying Space Robot
  Y. Murotsu, K. Senda, M. Ozaki, and S. Tsujio
  AIAA Journal of Guidance, Control, and Dynamics, 17-3, 488-489 (1994)
  doi: 10.2514/3.21225.

• PD-Impedance Control of Docking Mechanism Composed of Intelligent Adaptive Structure
  K. Senda, Y. Murotsu, K. Hisaji
  Journal of the Robotics Society of Japan, 11-5, 692-701 (1993). (in Japanese)

• Control Experiments of Two-Link Flexible Manipulator
  K. Senda, Y. Murotsu, A. Mitsuya, K. Yamane, T. Nunohara
  Journal of the Robotics Society of Japan, 11-4, 597-600 (1993). (in Japanese)

• Control Experiments of One-Link Flexible Manipulator
  K. Senda, Y. Murotsu, A. Mitsuya, K. Yamane, T. Nunohara
  Journal of the Robotics Society of Japan, 11-4, 593-596 (1993). (in Japanese)

• Inertial Parameter Identification of Unknown Object Handled by a Free-Flying Space Robot
  Y. Murotsu, S. Tsujio, K. Senda, M. Ozaki
  Transactions of Institute of System, Control and Information Engineers, 6-1, 26-36 (1993). (in Japanese)
  Best Journal Paper Award !

• PD-Impedance Control of Docking Mechanism Composed of Intelligent Adaptive Structure
  Y. Murotsu, K. Senda, and K. Hisaji
  Journal of Intelligent Material Systems and Structures, 3-4 (Oct.), 680-696 (1992).

• Control of Intelligent Truss Structures (2st Report: Hardware Experiments of Optimal Trajectory Control)
  Y. Murotsu, K. Senda, H. Okubo, T. Noguchi
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 58-552, 2395-2402 (1992.8). (in Japanese)

• Trajectory Control of Flexible Manipulators on a Free-Flying Space Robot
  Y. Murotsu, S. Tsujio, K. Senda, and M. Hayashi
  IEEE Control Systems, 12-3 (June), 51-57 (1992).

• Control of Intelligent Truss Structures (1st Report: Optimal Trajectory Control)
  Y. Murotsu, K. Senda, K. Hisaji
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 57-543, 3518-3525 (1991.11). (in Japanese)

• Dynamics and Positioning Control of Space Robot with Structurally Flexible Manipulators
  Y. Murotsu, S. Tsujio, K. Senda, M. Hayashi
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 57-539, 2363-2370 (1991.7). (in Japanese)

• A Method of Attitude Control for Space Robots
  K. Senda, Y. Murotsu, M. Ozaki
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 57-539, 2356-2362 (1991.7). (in Japanese)

• Identification of a Tendon Control System for Flexible Space Structures
  Y. Murotsu, H. Okubo, and K. Senda
  AIAA Journal of Guidance, Control, and Dynamics, 14-4, 743-750 (1991)
  doi: 10.2514/3.20708.

• Hardware Experimant of a Tendon Vibration Control System for a Flexible Beam
  Y. Murotsu, H. Okubo, F. Terui, K. Senda, T. Yamaguchi
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 56-525, 1139-1146 (1990.5). (in Japanese)

• An Approach to the Design of a Tendon Vibration Control System for Flexible Beam
  Y. Murotsu, H. Okubo, F. Terui, K. Senda, K. Shinoda
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 55-514, 1345-1352 (1989.6). (in Japanese)

• Dynamics of Tendon Vibration Control System for Flexible Beam
  Y. Murotsu, H. Okubo, F. Terui, K. Senda, K. Shinoda
  Transactions of Japan Society of Mechanical Engineers, Ser. C, 54-507, 2681-2688 (1988.11). (in Japanese)

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