Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Modelling the Friction Contact in an Inertia Motor.”https://doi.org/10.1177/1045389X12474354__Journal of Intelligent Material Systems and Structures 24, no. 11 (2013): 1380–91.https://doi.org/10.1177/1045389X12474354 .

Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Stick-Slip and Slip-Slip Operation of Piezoelectric Inertia Drives - Part II: Frequency-Limited Excitation.”https://doi.org/10.1016/j.sna.2012.11.043__Sensors and Actuators A: Physical 200 (2013): 79–89.https://doi.org/10.1016/j.sna.2012.11.043 .

Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Stick-Slip and Slip-Slip Operation of Piezoelectric Inertia Drives - Part I: Ideal Excitation.”https://doi.org/10.1016/j.sna.2012.11.012__Sensors and Actuators A: Physical 200 (2013): 90–100.https://doi.org/10.1016/j.sna.2012.11.012 .

Morita, Takeshi, Tobias Hemsel, T. Ijima, D. Y. Jeong, T. Kanda, Jens Twiefel, E. Uzgur, and M. Lallart, eds. Selected Papers from the 9th International Workshop on Piezoelectric Materials and Applications in Actuators. Sensors and Actuators A: Physical. Vol. 200. Elsevier, 2013.https://doi.org/10.1016/j.sna.2013.06.017 .

Ohta, Kanako, Gaku Isobe, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Study on Optimizing Ultrasonic Irradiation Period for Thick Polycrystalline PZT Film by Hydrothermal Method.”https://doi.org/10.1016/j.ultras.2012.12.003__Ultrasonics 53, no. 4 (2013): 837–41.https://doi.org/10.1016/j.ultras.2012.12.003 .

Yokouchi, Yuriko, Takafumi Maeda, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Piezoelectric Properties of CuO-Doped (K,Na)NbO3 Lead-Free Ceramics Synthesized with Hydrothermal Powders.”https://doi.org/10.7567/JJAP.52.07HB03__Japanese Journal of Applied Physics 52, no. 7S (2013).https://doi.org/10.7567/JJAP.52.07HB03 .

Al-Ashtari, Waleed, Matthias Hunstig, Tobias Hemsel, and Walter Sextro. “Frequency Tuning of Piezoelectric Energy Harvesters by Magnetic Force.” Smart Materials and Structures 21, no. 3 (2012): 035019.

Al-Ashtari, Waleed, Matthias Hunstig, Tobias Hemsel, and Walter Sextro. “Analytical Determination of Characteristic Frequencies and Equivalent Circuit Parameters of a Piezoelectric Bimorph.”https://doi.org/10.1177/1045389X11430742__Journal of Intelligent Material Systems and Structures 23, no. 1 (2012): 15–23.https://doi.org/10.1177/1045389X11430742 .

Bornmann, Peter, Tobias Hemsel, Walter Sextro, Takafumi Maeda, and Takeshi Morita. “Non-Perturbing Cavitation Detection / Monitoring in Sonochemical Reactors.”https://doi.org/10.1109/ULTSYM.2012.0284__In Ultrasonics Symposium (IUS), 2012 IEEE International, 1141–44, 2012.https://doi.org/10.1109/ULTSYM.2012.0284 .

Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “An Efficient Simulation Technique for High-Frequency Piezoelectric Inertia Motors.”https://doi.org/10.1109/ULTSYM.2012.0068__In Ultrasonics Symposium (IUS), 2012 IEEE International, 277–80, 2012.https://doi.org/10.1109/ULTSYM.2012.0068 .

Isobe, Gaku, Ryo Ageba, Takafumi Maeda, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Synthesis of Piezoelectric Materials by Ultrasonic Assisted Hydrothermal Method.”https://doi.org/10.1063/1.3703251__In AIP Conference Proceedings, edited by Bogumil B. J. Linde, Jacek Paczkowski, and Nikodem Ponikwicki, 1433:569–72. AIP, 2012.https://doi.org/10.1063/1.3703251 .

Maeda, Takafumi, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Piezoelectric Applications of Hydrothermal Lead-Free (K0.48N.52)NbO3 Ceramics.”https://doi.org/10.1109/ULTSYM.2012.0048__In Ultrasonics Symposium (IUS), 2012 IEEE International, 194–95, 2012.https://doi.org/10.1109/ULTSYM.2012.0048 .

Maeda, Takafumi, Tobias Hemsel, and Takeshi Morita. “Piezoelectric Properties of Li-Doped (K0.48N.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders.”https://doi.org/10.1143/JJAP.51.09MD08__Japanese Journal of Applied Physics 51 (2012): 09M.https://doi.org/10.1143/JJAP.51.09MD08 .

Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Analysis of Different Operation Modes for Inertia Motors.” ACTUATOR 2012 Conference Proceedings, 2012, 761–64.

Hemsel, Tobias, Bo Fu, Yi Jing, and Xuan Fu. “Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm.”https://doi.org/10.4028/www.scientific.net/KEM.474-476.1808__Key Engineering Materials 474–476 (2011): 1808–12.https://doi.org/10.4028/www.scientific.net/KEM.474-476.1808 .

Lucinskis, Raimundas, Dalius Mazeika, Tobias Hemsel, and Ramutis Bansevicius. “Multi-DOF Cylindrical Piezoelectric Actuator with Radial Polarization.”https://doi.org/10.1063/1.3703277__AIP Conference Proceedings 1433, no. 1 (2011): 693–96.https://doi.org/10.1063/1.3703277 .

Maeda, Takafumi, Tobias Hemsel, and Takeshi Morita. “Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48N.52)NbO3 Ceramics.” Japanese Journal of Applied Physics 50 (2011): 07H.

Isobe, Gaku, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “High Temperature Tolerant Transducer for Ultrasonic Assisted Hydrothermal Method.” Proceedings of Symposium on Ultrasonic Electronics 32 (2011): 19–20.

Sextro, Walter, Matthias Hunstig, Peter Bornmann, and Tobias Hemsel. “Patent 1003395: Anordnung Und Verfahren Zur Mehrdimensionalen Messung von Schwingungen Eines Objekts. ,” 2011.

Ageba, Ryo, Yoichi Kadota, Takafumi Maeda, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa, Peter Bornmann, and Tobias Hemsel. “Ultrasonically-Assisted Hydrothermal Method for Ferroelectric Material Synthesis.”https://doi.org/10.3938/jkps.57.918__Journal of Korean Physical Society 57, no. 4 (2010): 918–23.https://doi.org/10.3938/jkps.57.918 .