A simple pre-stress estimating method of langevin transducers
F. Bo, L. Ting, T. Hemsel, in: Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium On, 2008, pp. 324–327.

Development of a biomedical tissue differentiation system using piezoelectric actuators
D.O. Uribe, R. Stroop, T. Hemsel, J. Wallaschek, in: Frequency Control Symposium, 2008 IEEE International, 2008, pp. 91–94.

Piezoelectric transducer design via multiobjective optimization
B. Fu, T. Hemsel, J. Wallaschek, Ultrasonics 44, Supplement (2006) e747–e752.

Piezoelectric linear motor concepts based on coupling of longitudinal vibrations
T. Hemsel, M. Mracek, J. Twiefel, P. Vasiljev, Ultrasonics 44, Supplement (2006) e591–e596.

Model based analysis of piezoelectric transformers
T. Hemsel, S. Priya, Ultrasonics 44, Supplement (2006) e741–e745.

Piezoelectric transformers - state of the art and development trends
T. Hemsel, W. Littmann, J. Wallaschek, in: Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE, 2002, pp. 645–648.

State of the art and development trends of ultrasonic linear motors
T. Hemsel, J. Wallaschek, in: Ultrasonics Symposium, 2000 IEEE, 2000, pp. 663–666 vol.1.