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Yajima R, Nagatani K and Hirata Y (2019), "Research on traversability of tracked vehicle on slope with unfixed obstacles: Derivation of climbing-over tipping-over and sliding-down conditions", Advanced Robotics., September, 2019. Vol. 33(20), pp. 1060-1071.
BibTeX:
@article{Yajima_Nagatani_2019_SlopeTraversal,
  author = {Ryosuke Yajima and Keiji Nagatani and Yasuhisa Hirata},
  title = {Research on traversability of tracked vehicle on slope with unfixed obstacles: Derivation of climbing-over tipping-over and sliding-down conditions},
  journal = {Advanced Robotics},
  year = {2019},
  volume = {33},
  number = {20},
  pages = {1060--1071},
  url = {https://doi.org/10.1080/01691864.2019.1668848}
}
Nagatani K, Kiribayashi S, Yajima R, Hada Y, Izu T, Zeniya A, Kanai H, Kanasaki H, Minagawa J and Moriyama Y (2018), "Micro-Unmanned Aerial Vehicle based Volcano Observation System for Debris Flow Evacuation Warning", Journal of Field Robotics., November, 2018. Vol. 35(8), pp. 1222-1241.
BibTeX:
@article{Nagatani_2018_VolcanoEvacuation,
  author = {Keiji Nagatani and Seiga Kiribayashi and Ryosuke Yajima and Yasushi Hada and Tomoaki Izu and Akira Zeniya and Hiromichi Kanai and Hiroyuki Kanasaki and Jun Minagawa and Yuji Moriyama},
  title = {Micro-Unmanned Aerial Vehicle based Volcano Observation System for Debris Flow Evacuation Warning},
  journal = {Journal of Field Robotics},
  year = {2018},
  volume = {35},
  number = {8},
  pages = {1222--1241},
  url = {https://doi.org/10.1002/rob.21834}
}
Otsuka H and Nagatani K (2018), "Pitching Moment Caused by Rotor Flow Interference on a Small Quad-rotor Unmanned Aerial Vehicle in a Uniform Flow", Transactions of JSASS., March, 2018. Vol. 61(2), pp. 87-96.
BibTeX:
@article{Otsuka_Nagatani_2018_PitchingMoment,
  author = {Hikaru Otsuka and Keiji Nagatani},
  title = {Pitching Moment Caused by Rotor Flow Interference on a Small Quad-rotor Unmanned Aerial Vehicle in a Uniform Flow},
  journal = {Transactions of JSASS},
  year = {2018},
  volume = {61},
  number = {2},
  pages = {87--96},
  url = {https://www.jstage.jst.go.jp/article/tjsass/61/2/61_T-17-76/_article/-char/en}
}
Otsuka H, Sasaki D and Nagatani K (2018), "Reduction of head-up pitching moment of small quad-rotor unmanned aerial vehicles in uniform flow", International Journal of Micro Air Vehicles., March, 2018. Vol. 10(1), pp. 85-105.
BibTeX:
@article{Otsuka_Nagatani_2018_ReductionPitchingMoment,
  author = {Hikaru Otsuka and Daisuke Sasaki and Keiji Nagatani},
  title = {Reduction of head-up pitching moment of small quad-rotor unmanned aerial vehicles in uniform flow},
  journal = {International Journal of Micro Air Vehicles},
  year = {2018},
  volume = {10},
  number = {1},
  pages = {85--105},
  url = {https://doi.org/10.1177/1756829317745318}
}
Yamauchi G, Nagatani K, Hashimoto T and Fujino K (2017), "Slip-compensated odometry for tracked vehicle on loose and weak slope", ROBOMECH Journal., November, 2017. Vol. 4(1), pp. 1-11.
BibTeX:
@article{Yamauchi_Nagatani_2017_SlipComensatedOdometry,
  author = {Genki Yamauchi and Keiji Nagatani and Takeshi Hashimoto and Kenichi Fujino},
  title = {Slip-compensated odometry for tracked vehicle on loose and weak slope},
  journal = {ROBOMECH Journal},
  year = {2017},
  volume = {4},
  number = {1},
  pages = {1--11},
  url = {https://robomechjournal.springeropen.com/track/pdf/10.1186/s40648-017-0095-1?site=robomechjournal.springeropen.com}
}
Endo D, Watanabe A and Nagatani K (2017), "Stair Climbing Control for 4-DOF Tracked Vehicle Based on Internal Sensors", Journal of Robotics., October, 2017. , pp. 1-18.
BibTeX:
@article{Endo_Nagatani_2017_StairClimbing4DOF,
  author = {Daisuke Endo and Atsushi Watanabe and Keiji Nagatani},
  title = {Stair Climbing Control for 4-DOF Tracked Vehicle Based on Internal Sensors},
  journal = {Journal of Robotics},
  year = {2017},
  pages = {1--18},
  url = {https://www.hindawi.com/journals/jr/2017/3624589/}
}
Endo D and Nagatani K (2016), "Assessment of a Tracked Vehicle's Ability to Traverse Stairs", ROBOMECH Journal., September, 2016. Vol. 3(20), pp. 1-13.
BibTeX:
@article{Endo_Nagatani_2016_TrackedVehicleStair,
  author = {Daisuke Endo and Keiji Nagatani},
  title = {Assessment of a Tracked Vehicle's Ability to Traverse Stairs},
  journal = {ROBOMECH Journal},
  year = {2016},
  volume = {3},
  number = {20},
  pages = {1--13},
  url = {http://link.springer.com/article/10.1186/s40648-016-0058-y}
}
Higa S, Nagaoka K, Nagatani K and Yoshida K (2015), "Measurement and modeling for two-dimensional normal stress distribution of wheel on loose soil", Journal of Terramechanics., December, 2015. Vol. 62, pp. 63-73.
BibTeX:
@article{Higa_Nagatani_2015_NormalStressDistribution,
  author = {Shoya Higa and Kenji Nagaoka and Keiji Nagatani and Kazuya Yoshida},
  title = {Measurement and modeling for two-dimensional normal stress distribution of wheel on loose soil},
  journal = {Journal of Terramechanics},
  year = {2015},
  volume = {62},
  pages = {63--73},
  url = {http://www.sciencedirect.com/science/article/pii/S002248981500035X}
}
Nagatani K (2014), "Review: Recent Trends and Issues of Volcanic Disaster Response with Mobile Robots", Journal of Robotics and Mechatronics 2014., August, 2014. Vol. 26(4), pp. 436-441.
BibTeX:
@article{Nagatani_2014_Review-VolcanicRobots,
  author = {Keiji Nagatani},
  title = {Review: Recent Trends and Issues of Volcanic Disaster Response with Mobile Robots},
  journal = {Journal of Robotics and Mechatronics 2014},
  year = {2014},
  volume = {26},
  number = {4},
  pages = {436--441}
}
Inotsume H, Sutoh M, Nagaoka K, Nagatani K and Yoshida K (2013), "Modeling Analysis and Control of Actively Reconfigurable Planetary Rover for Traversing Slopes Covered with Loose Soil", Journal of Field Robotics., September, 2013. Vol. 30(6), pp. 1-22.
BibTeX:
@article{Inotsume_Nagatani_2013_ActiveControlOfReconfigurableRover,
  author = {Hiroaki Inotsume and Masataku Sutoh and Kenji Nagaoka and Keiji Nagatani and Kazuya Yoshida},
  title = {Modeling Analysis and Control of Actively Reconfigurable Planetary Rover for Traversing Slopes Covered with Loose Soil},
  journal = {Journal of Field Robotics},
  year = {2013},
  volume = {30},
  number = {6},
  pages = {1--22},
  url = {https://onlinelibrary.wiley.com/doi/full/10.1002/rob.21479}
}
Sutoh M, Nagaoka K, Nagatani K and Yoshida K (2013), "Design of wheels with grousers for planetary rovers traveling over loose soil", Journal of Terramechanics., July, 2013. Vol. 50, pp. 345-353.
BibTeX:
@article{Sutoh_Nagatani_2013_GrousersForPlanetaryRovers,
  author = {Masataku Sutoh and Kenji Nagaoka and Keiji Nagatani and Kazuya Yoshida},
  title = {Design of wheels with grousers for planetary rovers traveling over loose soil},
  journal = {Journal of Terramechanics},
  year = {2013},
  volume = {50},
  pages = {345--353},
  url = {http://www.sciencedirect.com/science/article/pii/S0022489813000499}
}
Nagai I, Yamauchi G, Nagatani K, Watanabe K and Yoshida K (2013), "Positioning device for outdoor mobile robots using optical sensors and lasers", Advanced Robotics., July, 2013. Vol. 27(15), pp. 1147-1160.
BibTeX:
@article{Nagai_Nagatani_2013_PositioningDevice,
  author = {Isaku Nagai and Genki Yamauchi and Keiji Nagatani and Keigo Watanabe and Kazuya Yoshida},
  title = {Positioning device for outdoor mobile robots using optical sensors and lasers},
  journal = {Advanced Robotics},
  year = {2013},
  volume = {27},
  number = {15},
  pages = {1147--1160},
  url = {http://www.tandfonline.com/doi/abs/10.1080/01691864.2013.819603}
}
Nagatani K, Kiribayashi S, Okada Y, Otake K, Tadokoro KYS, Nishimura T, Yoshida T, Koyanagi E, Fukushima M and Kawatsuma S (2013), "Emergency Response to the Nuclear Accident at the Fukushima Daiichi Nuclear Power Plants using Mobile Rescue Robots", Journal of Field Robotics., January, 2013. Vol. 30(1), pp. 44-63.
BibTeX:
@article{Nagatani_2013_FukushimaQuince,
  author = {Keiji Nagatani and Seiga Kiribayashi and Yoshito Okada and Kazuki Otake and Kazuya Yoshida. Satoshi Tadokoro and Takeshi Nishimura and Tomoaki Yoshida and Eiji Koyanagi and Mineo Fukushima and Shinji Kawatsuma},
  title = {Emergency Response to the Nuclear Accident at the Fukushima Daiichi Nuclear Power Plants using Mobile Rescue Robots},
  journal = {Journal of Field Robotics},
  year = {2013},
  volume = {30},
  number = {1},
  pages = {44--63},
  url = {https://doi.org/10.1002/rob.21439}
}
Michael N, Shen S, Mohta K, Mulgaonkar Y, Kumar V, Nagatani K, Okada Y, Kiribayashi S, Otake K, Yoshida K, Ohno K, Takeuchi E and Tadokoro S (2012), "Collaborative mapping of an earthquake-damaged building via ground and aerial robots", Journal of Field Robotics., August, 2012. Vol. 29(5), pp. 832-841.
BibTeX:
@article{Michael_Nagatani_2012_CollaborativeMapping,
  author = {Nathan Michael and Shaojie Shen and Kartik Mohta and Yash Mulgaonkar and Vijay Kumar and Keiji Nagatani and Yoshito Okada and Seiga Kiribayashi and Kazuki Otake and Kazuya Yoshida and Kazunori Ohno and Eijiro Takeuchi and Satoshi Tadokoro},
  title = {Collaborative mapping of an earthquake-damaged building via ground and aerial robots},
  journal = {Journal of Field Robotics},
  year = {2012},
  volume = {29},
  number = {5},
  pages = {832--841},
  url = {https://onlinelibrary.wiley.com/doi/full/10.1002/rob.21436}
}
Sutoh M, Yusa J, Ito T, Nagatani K and Yoshida K (2012), "Traveling Performance Evaluation of Planetary Rovers on Loose Soil", Journal of Field Robotics ., March, 2012. Vol. 29(4), pp. 648-662.
BibTeX:
@article{Sutoh_Nagatani_2012_TravellingPerformance,
  author = {Masataku Sutoh and Junya Yusa and Tsuyoshi Ito and Keiji Nagatani and Kazuya Yoshida},
  title = {Traveling Performance Evaluation of Planetary Rovers on Loose Soil},
  journal = {Journal of Field Robotics },
  year = {2012},
  volume = {29},
  number = {4},
  pages = {648--662},
  url = {https://doi.org/10.1002/rob.21405}
}
Ohki T, Nagatani K and Yoshida K (2012), "Local Path Planner for Mobile Robot in Dynamic Environment based on Distance Time Transform Method", Advanced Robotics., January, 2012. Vol. 26(14), pp. 1623-1647.
BibTeX:
@article{Ohki_Nagatani_2012_LocalPathPlanner,
  author = {Takeshi Ohki and Keiji Nagatani and Kazuya Yoshida},
  title = {Local Path Planner for Mobile Robot in Dynamic Environment based on Distance Time Transform Method},
  journal = {Advanced Robotics},
  year = {2012},
  volume = {26},
  number = {14},
  pages = {1623--1647}
}
Nagatani K, Kushleyev A and Lee DD (2012), "Sensor Information Processing in Robot Competitions and Real World Robotic Challenges", Advanced Robotics., January, 2012. Vol. 26(14), pp. 1539-1554.
BibTeX:
@article{Nagatani_2012_RealWorldChallenges,
  author = {Keiji Nagatani and Alex Kushleyev and Daniel D. Lee},
  title = {Sensor Information Processing in Robot Competitions and Real World Robotic Challenges},
  journal = {Advanced Robotics},
  year = {2012},
  volume = {26},
  number = {14},
  pages = {1539--1554}
}
Okada Y, Nagatani K, Yoshida K, Tadokoro S, Yoshida T and Koyanagi E (2011), "Shared Autonomy System for Tracked Vehicles on Rough Terrain Based on Continuous Three-Dimensional Terrain Scanning", Journal of Field Robotics., November, 2011. Vol. 28(6), pp. 875-893.
BibTeX:
@article{Okada_Nagatani_2011_SharedAutonomy,
  author = {Yoshito Okada and Keiji Nagatani and Kazuya Yoshida and Satoshi Tadokoro and Tomoaki Yoshida and Eiji Koyanagi},
  title = {Shared Autonomy System for Tracked Vehicles on Rough Terrain Based on Continuous Three-Dimensional Terrain Scanning},
  journal = {Journal of Field Robotics},
  year = {2011},
  volume = {28},
  number = {6},
  pages = {875--893},
  url = {https://doi.org/10.1002/rob.20416}
}
Nagatani K, Kinoshita H, Yoshida K, Tadakuma K and Koyanagi E (2011), "Development of leg-track hybrid locomotion to traverse loose slopes and irregular terrain", Journal of Field Robotics., November, 2011. Vol. 28(6), pp. 950-960.
BibTeX:
@article{Nagatani_2011_Leg-trackLocomotion,
  author = {Keiji Nagatani and Hiroaki Kinoshita and Kazuya Yoshida and Kenjiro Tadakuma and Eiji Koyanagi},
  title = {Development of leg-track hybrid locomotion to traverse loose slopes and irregular terrain},
  journal = {Journal of Field Robotics},
  year = {2011},
  volume = {28},
  number = {6},
  pages = {950--960}
}
Nagatani K, Okada Y, Tokunaga N, Kiribayashi S, Yoshida K, Ohno K, Takeuchi E, Tadokoro S, Noda HAI and Koyanagi TYE (2011), "Multirobot Exploration for Search and Rescue Missions: A Report on Map Building in RoboCupRescue 2009", Journal of Field Robotics., March, 2011. Vol. 28(3), pp. 373-387.
BibTeX:
@article{Nagatani_2011_RoboCupRescue2009,
  author = {Keiji Nagatani and Yoshito Okada and Naoki Tokunaga and Seiga Kiribayashi and Kazuya Yoshida and Kazunori Ohno and Eijiro Takeuchi and Satoshi Tadokoro and Hidehisa Akiyama Itsuki Noda and Tomoaki Yoshida Eiji Koyanagi},
  title = {Multirobot Exploration for Search and Rescue Missions: A Report on Map Building in RoboCupRescue 2009},
  journal = {Journal of Field Robotics},
  year = {2011},
  volume = {28},
  number = {3},
  pages = {373--387},
  url = {https://onlinelibrary.wiley.com/doi/full/10.1002/rob.20389}
}
Ding L, Deng Z, Gao H, Nagatani K and Yoshida K (2011), "Planetary rovers' wheel---soil interaction mechanics: new challenges and applications for wheeled mobile robots", Intelligent Service Robotics., January, 2011. Vol. 4(1), pp. 17-38.
BibTeX:
@article{Ding_Nagatani_2011_PlanetaryRovers,
  author = {Liang Ding and Zongquan Deng and Haibo Gao and Keiji Nagatani and Kazuya Yoshida},
  title = {Planetary rovers' wheel---soil interaction mechanics: new challenges and applications for wheeled mobile robots},
  journal = {Intelligent Service Robotics},
  year = {2011},
  volume = {4},
  number = {1},
  pages = {17--38}
}
Ding L, Gao H, Deng Z, Nagatani K and Yoshida K (2011), "Experimental study and analysis on driving wheels performance for planetary exploration rovers moving in deformable soil", Journal of Terramechanics., January, 2011. Vol. 48, pp. 27-45.
BibTeX:
@article{Ding_Nagatani_2011_DrivingWheels,
  author = {Liang Ding and Haibo Gao and Zongquan Deng and Keiji Nagatani and Kazuya Yoshida},
  title = {Experimental study and analysis on driving wheels performance for planetary exploration rovers moving in deformable soil},
  journal = {Journal of Terramechanics},
  year = {2011},
  volume = {48},
  pages = {27--45},
  url = {http://www.sciencedirect.com/science/article/pii/S0022489810000601}
}
Nagatani K, Ikeda A, Ishigami G, Yoshida K and Nagai I (2010), "Development of a Visual Odometry System for a Wheeled Robot on Loose Soil Using a Telecentric Camera", Advanced Robotics., May, 2010. Vol. 24, pp. 1149-1167.
BibTeX:
@article{Nagatani_2010_VisualOdometry,
  author = {Keiji Nagatani and Ayako Ikeda and Genya Ishigami and Kazuya Yoshida and Isaku Nagai},
  title = {Development of a Visual Odometry System for a Wheeled Robot on Loose Soil Using a Telecentric Camera},
  journal = {Advanced Robotics},
  year = {2010},
  volume = {24},
  pages = {1149--1167}
}
Reina G, Ishigami G, Nagatani K and Yoshida K (2010), "Odometry Correction Using Visual Slip-Angle Estimation for Planetary Exploration Rovers", Advanced Robotics., March, 2010. Vol. 24, pp. 359-385.
BibTeX:
@article{Reina_Nagatani_2010_OdometryCorrection,
  author = {Giulio Reina and Genya Ishigami and Keiji Nagatani and Kazuya Yoshida},
  title = {Odometry Correction Using Visual Slip-Angle Estimation for Planetary Exploration Rovers},
  journal = {Advanced Robotics},
  year = {2010},
  volume = {24},
  pages = {359--385},
  url = {http://www.tandfonline.com/doi/abs/10.1163/016918609X12619993300548}
}
Ishigami G, Nagatani K and Yoshida K (2009), "Slope traversal controls for planetary exploration rover on sandy terrain", Journal of Field Robotics., March, 2009. Vol. 26(3), pp. 264-286.
BibTeX:
@article{Ishigami_Nagatani_2009_SlopeTraversal,
  author = {Genya Ishigami and Keiji Nagatani and Kazuya Yoshida },
  title = {Slope traversal controls for planetary exploration rover on sandy terrain},
  journal = {Journal of Field Robotics},
  year = {2009},
  volume = {26},
  number = {3},
  pages = {264--286}
}
Nagatani K, Kuze M and Yoshida K (2007), "Development of transformable mobile robot with mechanism of variable wheel diameter", Journal of Robotics and Mechatronics., July, 2007. Vol. 19(3), pp. 252-257.
BibTeX:
@article{Nagatani_2007_TranformableRobot,
  author = {Keiji Nagatani and Mitsuhiro Kuze and Kazuya Yoshida},
  title = {Development of transformable mobile robot with mechanism of variable wheel diameter},
  journal = {Journal of Robotics and Mechatronics},
  year = {2007},
  volume = {19},
  number = {3},
  pages = {252--257}
}
Ishigami G, Miwa A, Nagatani K and Yoshida K (2007), "Terramechanics-based Model for Steering Maneuver of Planetary Exploration Rovers on Loose Soil", Journal of Field Robotics., March, 2007. Vol. 24(3), pp. 233-250.
BibTeX:
@article{Ishigami_Nagatani_2007_SteeringManeruver,
  author = {Genya Ishigami and Akiko Miwa and Keiji Nagatani and Kazuya Yoshida},
  title = {Terramechanics-based Model for Steering Maneuver of Planetary Exploration Rovers on Loose Soil},
  journal = {Journal of Field Robotics},
  year = {2007},
  volume = {24},
  number = {3},
  pages = {233--250}
}
Nagatani K, Sato H, Tasaka H, Gofuku A and Tanaka Y (2005), "Development of Optical Communication Marks for Mobile Robots to Recognize Their Environment and to Handle Objects", Journal of Robotics and Mechatronics ., May, 2005. Vol. 17(2), pp. 208-217.
BibTeX:
@article{Nagatani_2005_Opt-marks,
  author = {Keiji Nagatani and Hiroyasu Sato and Hidenori Tasaka and Akio Gofuku and Yutaka Tanaka},
  title = {Development of Optical Communication Marks for Mobile Robots to Recognize Their Environment and to Handle Objects},
  journal = {Journal of Robotics and Mechatronics },
  year = {2005},
  volume = {17},
  number = {2},
  pages = {208--217}
}
Nagatani K, Iwai Y and Tanaka Y (2003), "Sensor Based Navigation for car-like mobile robots based on Generalized Voronoi Graph", Advanced Robotics ., July, 2003. Vol. 17(5), pp. 385-401.
BibTeX:
@article{Nagatani_2003_Car-likeRobots,
  author = {Keiji Nagatani and Yosuke Iwai and Yutaka Tanaka},
  title = {Sensor Based Navigation for car-like mobile robots based on Generalized Voronoi Graph},
  journal = {Advanced Robotics },
  year = {2003},
  volume = {17},
  number = {5},
  pages = {385--401}
}
Choset H, Nagatani K and Lazar NA (2003), "The Arc-Transversal Median Algorithm: A Geometric Approach to Increasing Ultrasonic Sensor Azimuth Accuracy", IEEE Transactions on Robotics and Automation., June, 2003. Vol. 19(3), pp. 513-522.
BibTeX:
@article{Choset_Nagatani_2003_ATMAlgorithm,
  author = {Howie Choset and Keiji Nagatani and Nicole A. Lazar},
  title = {The Arc-Transversal Median Algorithm: A Geometric Approach to Increasing Ultrasonic Sensor Azimuth Accuracy},
  journal = {IEEE Transactions on Robotics and Automation},
  year = {2003},
  volume = {19},
  number = {3},
  pages = {513--522}
}
Choset H and Nagatani K (2001), "Topological simultaneous localization and mapping (SLAM): toward exact localization without explicit localization", IEEE Transactions on Robotics and Automation., April, 2001. Vol. 17(2), pp. 125-137.
BibTeX:
@article{Choset_Nagatani_2001_T-SLAM,
  author = {Howie Choset and Keiji Nagatani},
  title = {Topological simultaneous localization and mapping (SLAM): toward exact localization without explicit localization},
  journal = {IEEE Transactions on Robotics and Automation},
  year = {2001},
  volume = {17},
  number = {2},
  pages = {125--137}
}
Nagatani K and Yuta S (1996), "Door Opening Behavior of an Autonomous Mobile Manipulator by Sequence of Action Primitives", Journal of Robotic Systems., November, 1996. Vol. 13(11), pp. 709-721.
BibTeX:
@article{Nagatani_1996_ActionPrimitives,
  author = {Keiji Nagatani and Shin'ichi Yuta},
  title = {Door Opening Behavior of an Autonomous Mobile Manipulator by Sequence of Action Primitives},
  journal = {Journal of Robotic Systems},
  year = {1996},
  volume = {13},
  number = {11},
  pages = {709--721}
}
Nagatani K and Yuta S (1996), "Designing a Behavior of Mobile Robot Equipped with a Manipulator to Open and Pass Through a Door", Robotics and Autonomous Systems., April, 1996. , pp. 53-64.
BibTeX:
@article{Nagatani_1996_DoorOpening,
  author = {Keiji Nagatani and Shin'ichi Yuta},
  title = {Designing a Behavior of Mobile Robot Equipped with a Manipulator to Open and Pass Through a Door},
  journal = {Robotics and Autonomous Systems},
  year = {1996},
  pages = {53--64}
}