[{"title":"Development of a biomedical tissue differentiation system using piezoelectric actuators","status":"public","year":"2008","publication_identifier":{"issn":["1075-6787"]},"author":[{"full_name":"Uribe, David Oliva","last_name":"Uribe","first_name":"David Oliva"},{"first_name":"Ralf","last_name":"Stroop","full_name":"Stroop, Ralf"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"},{"last_name":"Wallaschek","first_name":"Jörg","full_name":"Wallaschek, Jörg"}],"date_updated":"2022-01-06T07:04:16Z","page":"91-94","_id":"9576","language":[{"iso":"eng"}],"user_id":"55222","doi":"10.1109/FREQ.2008.4622963","publication":"Frequency Control Symposium, 2008 IEEE International","citation":{"apa":"Uribe, D. O., Stroop, R., Hemsel, T., &#38; Wallaschek, J. (2008). Development of a biomedical tissue differentiation system using piezoelectric actuators. In <i>Frequency Control Symposium, 2008 IEEE International</i> (pp. 91–94). <a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">https://doi.org/10.1109/FREQ.2008.4622963</a>","ieee":"D. O. Uribe, R. Stroop, T. Hemsel, and J. Wallaschek, “Development of a biomedical tissue differentiation system using piezoelectric actuators,” in <i>Frequency Control Symposium, 2008 IEEE International</i>, 2008, pp. 91–94.","chicago":"Uribe, David Oliva, Ralf Stroop, Tobias Hemsel, and Jörg Wallaschek. “Development of a Biomedical Tissue Differentiation System Using Piezoelectric Actuators.” In <i>Frequency Control Symposium, 2008 IEEE International</i>, 91–94, 2008. <a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">https://doi.org/10.1109/FREQ.2008.4622963</a>.","short":"D.O. Uribe, R. Stroop, T. Hemsel, J. Wallaschek, in: Frequency Control Symposium, 2008 IEEE International, 2008, pp. 91–94.","mla":"Uribe, David Oliva, et al. “Development of a Biomedical Tissue Differentiation System Using Piezoelectric Actuators.” <i>Frequency Control Symposium, 2008 IEEE International</i>, 2008, pp. 91–94, doi:<a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">10.1109/FREQ.2008.4622963</a>.","ama":"Uribe DO, Stroop R, Hemsel T, Wallaschek J. Development of a biomedical tissue differentiation system using piezoelectric actuators. In: <i>Frequency Control Symposium, 2008 IEEE International</i>. ; 2008:91-94. doi:<a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">10.1109/FREQ.2008.4622963</a>","bibtex":"@inproceedings{Uribe_Stroop_Hemsel_Wallaschek_2008, title={Development of a biomedical tissue differentiation system using piezoelectric actuators}, DOI={<a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">10.1109/FREQ.2008.4622963</a>}, booktitle={Frequency Control Symposium, 2008 IEEE International}, author={Uribe, David Oliva and Stroop, Ralf and Hemsel, Tobias and Wallaschek, Jörg}, year={2008}, pages={91–94} }"},"quality_controlled":"1","abstract":[{"lang":"eng","text":"In neurosurgery, delineation of tumor boundaries during resection of brain tumors is of substantial relevance. During operation distinction between tumor and healthy tissue rely on the abilities of the surgeon based on visual and tactile differentiation. In this paper a high sensitivity actuator-sensor system using a piezoelectric bimorph is presented. Frequency shift and transfer function of the bimorphpsilas voltages are detected and evaluated. Sensorpsilas sensitivity is evaluated using two frequency controls strategies: A phase-locked loop (PLL) and a self-oscillating circuit. Results of measurements conducted on gel-phantoms are presented and discussed."}],"date_created":"2019-04-29T13:07:39Z","keyword":["biomedical measurement","brain","cancer","neurophysiology","phantoms","phase locked loops","piezoelectric actuators","surgery","tactile sensors","transfer functions","tumours","PLL","biomedical tissue differentiation system","brain tumor resection","frequency control","frequency shift","gel-phantom","high sensitivity actuator-sensor system","neurosurgery","phase-locked loop","piezoelectric actuators","piezoelectric bimorph","self-oscillating circuit","sensor sensitivity","tactile differentiation","tactile sensor system","transfer function","tumor boundary","visual differentiation","Biomedical measurements","Circuits","Frequency control","Neoplasms","Neurosurgery","Phase locked loops","Piezoelectric actuators","Surges","Transfer functions","Voltage"],"type":"conference","department":[{"_id":"151"}]},{"date_created":"2019-07-12T05:30:57Z","type":"journal_article","keyword":["acoustic signal processing","arbitrary transfer function","array signal processing","blind acoustic beamforming","direction-of-arrival","direction-of-arrival estimation","eigenvalues and eigenfunctions","generalized eigenvalue decomposition","gradient ascent adaptation algorithm","microphone arrays","microphones","narrowband array beamforming","sensor array","single-channel post-filter","spatially colored noise","transfer functions"],"department":[{"_id":"54"}],"issue":"5","publication":"IEEE Transactions on Audio, Speech, and Language Processing","abstract":[{"text":"Maximizing the output signal-to-noise ratio (SNR) of a sensor array in the presence of spatially colored noise leads to a generalized eigenvalue problem. While this approach has extensively been employed in narrowband (antenna) array beamforming, it is typically not used for broadband (microphone) array beamforming due to the uncontrolled amount of speech distortion introduced by a narrowband SNR criterion. In this paper, we show how the distortion of the desired signal can be controlled by a single-channel post-filter, resulting in a performance comparable to the generalized minimum variance distortionless response beamformer, where arbitrary transfer functions relate the source and the microphones. Results are given both for directional and diffuse noise. A novel gradient ascent adaptation algorithm is presented, and its good convergence properties are experimentally revealed by comparison with alternatives from the literature. A key feature of the proposed beamformer is that it operates blindly, i.e., it neither requires knowledge about the array geometry nor an explicit estimation of the transfer functions from source to sensors or the direction-of-arrival.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"https://groups.uni-paderborn.de/nt/pubs/2007/WaHa07.pdf"}],"language":[{"iso":"eng"}],"doi":"10.1109/TASL.2007.898454","year":"2007","title":"Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition","author":[{"first_name":"Ernst","last_name":"Warsitz","full_name":"Warsitz, Ernst"},{"full_name":"Haeb-Umbach, Reinhold","first_name":"Reinhold","last_name":"Haeb-Umbach","id":"242"}],"date_updated":"2022-01-06T06:51:12Z","intvolume":"        15","oa":"1","citation":{"short":"E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language Processing 15 (2007) 1529–1539.","chicago":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i> 15, no. 5 (2007): 1529–39. <a href=\"https://doi.org/10.1109/TASL.2007.898454\">https://doi.org/10.1109/TASL.2007.898454</a>.","apa":"Warsitz, E., &#38; Haeb-Umbach, R. (2007). Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, <i>15</i>(5), 1529–1539. <a href=\"https://doi.org/10.1109/TASL.2007.898454\">https://doi.org/10.1109/TASL.2007.898454</a>","ieee":"E. Warsitz and R. Haeb-Umbach, “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition,” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 15, no. 5, pp. 1529–1539, 2007.","ama":"Warsitz E, Haeb-Umbach R. Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>. 2007;15(5):1529-1539. doi:<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>","bibtex":"@article{Warsitz_Haeb-Umbach_2007, title={Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition}, volume={15}, DOI={<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>}, number={5}, journal={IEEE Transactions on Audio, Speech, and Language Processing}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2007}, pages={1529–1539} }","mla":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 15, no. 5, 2007, pp. 1529–39, doi:<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>."},"page":"1529-1539","_id":"11927","user_id":"44006","volume":15,"status":"public"},{"citation":{"mla":"Gausemeier, Jürgen, et al. “Virtual Prototyping Of Self-Optimizing Mechatronic Systems.” <i>Proceedings of the Design 2004</i>, 2004.","bibtex":"@inproceedings{Gausemeier_Müller_Paelke_Bauch_Shen_Radkowski_2004, place={Dubrovnik}, title={Virtual Prototyping Of Self-Optimizing Mechatronic Systems}, booktitle={Proceedings of the Design 2004}, author={Gausemeier, Jürgen and Müller, Wolfgang and Paelke, Volker and Bauch, Jürgen and Shen, Q. and Radkowski, R. }, year={2004} }","ama":"Gausemeier J, Müller W, Paelke V, Bauch J, Shen Q, Radkowski R. Virtual Prototyping Of Self-Optimizing Mechatronic Systems. In: <i>Proceedings of the Design 2004</i>. ; 2004.","ieee":"J. Gausemeier, W. Müller, V. Paelke, J. Bauch, Q. Shen, and R. Radkowski, “Virtual Prototyping Of Self-Optimizing Mechatronic Systems,” presented at the 8th International Design Conference , Dubrovnik, 2004.","apa":"Gausemeier, J., Müller, W., Paelke, V., Bauch, J., Shen, Q., &#38; Radkowski, R. (2004). Virtual Prototyping Of Self-Optimizing Mechatronic Systems. <i>Proceedings of the Design 2004</i>. 8th International Design Conference , Dubrovnik.","short":"J. Gausemeier, W. Müller, V. Paelke, J. Bauch, Q. Shen, R. Radkowski, in: Proceedings of the Design 2004, Dubrovnik, 2004.","chicago":"Gausemeier, Jürgen, Wolfgang Müller, Volker Paelke, Jürgen Bauch, Q. Shen, and R.  Radkowski. “Virtual Prototyping Of Self-Optimizing Mechatronic Systems.” In <i>Proceedings of the Design 2004</i>. Dubrovnik, 2004."},"publication":"Proceedings of the Design 2004","department":[{"_id":"672"}],"keyword":["mechatronic systems","self-optimization","virtual prototyping"],"type":"conference","place":"Dubrovnik","date_created":"2023-01-24T09:12:31Z","date_updated":"2023-01-24T09:12:40Z","conference":{"name":"8th International Design Conference ","location":"Dubrovnik"},"author":[{"first_name":"Jürgen","last_name":"Gausemeier","full_name":"Gausemeier, Jürgen","id":"163"},{"full_name":"Müller, Wolfgang","first_name":"Wolfgang","last_name":"Müller","id":"16243"},{"full_name":"Paelke, Volker","first_name":"Volker","last_name":"Paelke"},{"full_name":"Bauch, Jürgen","first_name":"Jürgen","last_name":"Bauch"},{"full_name":"Shen, Q.","first_name":"Q.","last_name":"Shen"},{"last_name":"Radkowski","first_name":"R. ","full_name":"Radkowski, R. "}],"status":"public","title":"Virtual Prototyping Of Self-Optimizing Mechatronic Systems","year":"2004","user_id":"5786","language":[{"iso":"eng"}],"_id":"39078"},{"date_updated":"2022-06-07T00:26:34Z","publication_status":"published","intvolume":"        43","year":"2003","title":"Direct parameter specification of an attention shift: Evidence from perceptual latency priming.","publication_identifier":{"issn":["0042-6989"]},"author":[{"id":"451","full_name":"Scharlau, Ingrid","first_name":"Ingrid","orcid":"0000-0003-2364-9489","last_name":"Scharlau"},{"full_name":"Ansorge, Ulrich","last_name":"Ansorge","first_name":"Ulrich"}],"main_file_link":[{"open_access":"1","url":"https://kw.uni-paderborn.de/fileadmin/fakultaet/Institute/psychologie/Kognitive_Psychologie/Publikationen/ScharlauAnsorge2003VisResDPS.pdf"}],"language":[{"iso":"eng"}],"abstract":[{"text":"In the direct parameter specification (DPS) mode of sensorimotor control, response parameters can be specified by stimuli that are not consciously perceived [Psychological Research/Psychologische Forschung 52 (1990) 207]. DPS is contingent on the current intentions. The invisible stimuli can be processed for the purposes of sensorimotor control only if they match the actual intentions, for example, share task-relevant features. The present experiments explore whether attentional capture by masked abrupt-onset stimuli is mediated via DPS. Participants judged which of two visual targets appeared first. Masked primes preceded one of the targets. The primes were either similar to the targets or not, in shape, or in color. Target-like (task-relevant), but not distractor-like (task-irrelevant), primes facilitated perceptual latencies of targets trailing at their positions. Thus, the latency effects resulted from DPS of an attention shift, rather than from bottom-up capture or from top-down ","lang":"eng"}],"extern":"1","issue":"12","publication":"Vision Research","type":"journal_article","keyword":["direct parameter specification","DPS","attention shift","latency priming","sensorimotor control","stimuli","task-relevant features","visual targets","color","shape","latency effects","Adult","Attention","Discrimination (Psychology)","Female","Humans","Judgment","Male","Perceptual Masking","Reaction Time","Visual Perception","Attention","Perceptual Motor Processes","Response Latency","Stimulus Onset","Visual Stimulation","Form and Shape Perception","Sensory Adaptation"],"department":[{"_id":"424"}],"date_created":"2018-12-10T07:01:37Z","status":"public","user_id":"42165","volume":43,"page":"1351 - 1363","_id":"6065","citation":{"bibtex":"@article{Scharlau_Ansorge_2003, title={Direct parameter specification of an attention shift: Evidence from perceptual latency priming.}, volume={43}, number={12}, journal={Vision Research}, author={Scharlau, Ingrid and Ansorge, Ulrich}, year={2003}, pages={1351–1363} }","ama":"Scharlau I, Ansorge U. Direct parameter specification of an attention shift: Evidence from perceptual latency priming. <i>Vision Research</i>. 2003;43(12):1351-1363.","mla":"Scharlau, Ingrid, and Ulrich Ansorge. “Direct Parameter Specification of an Attention Shift: Evidence from Perceptual Latency Priming.” <i>Vision Research</i>, vol. 43, no. 12, 2003, pp. 1351–63.","short":"I. Scharlau, U. Ansorge, Vision Research 43 (2003) 1351–1363.","chicago":"Scharlau, Ingrid, and Ulrich Ansorge. “Direct Parameter Specification of an Attention Shift: Evidence from Perceptual Latency Priming.” <i>Vision Research</i> 43, no. 12 (2003): 1351–63.","ieee":"I. Scharlau and U. Ansorge, “Direct parameter specification of an attention shift: Evidence from perceptual latency priming.,” <i>Vision Research</i>, vol. 43, no. 12, pp. 1351–1363, 2003.","apa":"Scharlau, I., &#38; Ansorge, U. (2003). Direct parameter specification of an attention shift: Evidence from perceptual latency priming. <i>Vision Research</i>, <i>43</i>(12), 1351–1363."},"oa":"1"},{"citation":{"chicago":"Haeb-Umbach, Reinhold. “Automatic Generation of Phonetic Regression Class Trees for MLLR Adaptation.” <i>IEEE Transactions on Speech and Audio Processing</i> 9, no. 3 (2001): 299–302. <a href=\"https://doi.org/10.1109/89.906003\">https://doi.org/10.1109/89.906003</a>.","short":"R. Haeb-Umbach, IEEE Transactions on Speech and Audio Processing 9 (2001) 299–302.","apa":"Haeb-Umbach, R. (2001). Automatic generation of phonetic regression class trees for MLLR adaptation. <i>IEEE Transactions on Speech and Audio Processing</i>, <i>9</i>(3), 299–302. <a href=\"https://doi.org/10.1109/89.906003\">https://doi.org/10.1109/89.906003</a>","ieee":"R. Haeb-Umbach, “Automatic generation of phonetic regression class trees for MLLR adaptation,” <i>IEEE Transactions on Speech and Audio Processing</i>, vol. 9, no. 3, pp. 299–302, 2001.","ama":"Haeb-Umbach R. Automatic generation of phonetic regression class trees for MLLR adaptation. <i>IEEE Transactions on Speech and Audio Processing</i>. 2001;9(3):299-302. doi:<a href=\"https://doi.org/10.1109/89.906003\">10.1109/89.906003</a>","bibtex":"@article{Haeb-Umbach_2001, title={Automatic generation of phonetic regression class trees for MLLR adaptation}, volume={9}, DOI={<a href=\"https://doi.org/10.1109/89.906003\">10.1109/89.906003</a>}, number={3}, journal={IEEE Transactions on Speech and Audio Processing}, author={Haeb-Umbach, Reinhold}, year={2001}, pages={299–302} }","mla":"Haeb-Umbach, Reinhold. “Automatic Generation of Phonetic Regression Class Trees for MLLR Adaptation.” <i>IEEE Transactions on Speech and Audio Processing</i>, vol. 9, no. 3, 2001, pp. 299–302, doi:<a href=\"https://doi.org/10.1109/89.906003\">10.1109/89.906003</a>."},"oa":"1","status":"public","_id":"11778","page":"299-302","volume":9,"user_id":"44006","issue":"3","publication":"IEEE Transactions on Speech and Audio Processing","abstract":[{"text":"In this paper, it is shown that a correlation criterion is the appropriate criterion for bottom-up clustering to obtain broad phonetic class regression trees for maximum likelihood linear regression (MLLR)-based speaker adaptation. The correlation structure among speech units is estimated on the speaker-independent training data. In adaptation experiments the tree outperformed a regression tree obtained from clustering according to closeness in acoustic space and achieved results comparable with those of a manually designed broad phonetic class tree","lang":"eng"}],"date_created":"2019-07-12T05:28:04Z","department":[{"_id":"54"}],"type":"journal_article","keyword":["acoustic space","adaptation experiments","automatic generation","bottom-up clustering","broad phonetic class regression trees","correlation criterion","correlation methods","maximum likelihood estimation","maximum likelihood linear regression based speaker adaptation","MLLR adaptation","pattern clustering","phonetic regression class trees","speaker-independent training data","speech recognition","speech units","statistical analysis","trees (mathematics)"],"author":[{"id":"242","first_name":"Reinhold","last_name":"Haeb-Umbach","full_name":"Haeb-Umbach, Reinhold"}],"title":"Automatic generation of phonetic regression class trees for MLLR adaptation","year":"2001","intvolume":"         9","date_updated":"2022-01-06T06:51:08Z","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2001/Ha01.pdf","open_access":"1"}],"doi":"10.1109/89.906003"}]