@article{SchoeningAbouzarPoghossian2009, author = {Sch{\"o}ning, Michael Josef and Abouzar, Maryam H. and Poghossian, Arshak}, title = {pH and ion sensitivity of a field-effect EIS (electrolyte-insulator-semiconductor) sensor covered with polyelectrolyte multilayers}, series = {Journal of Solid State Electrochemistry. 13 (2009), H. 1}, journal = {Journal of Solid State Electrochemistry. 13 (2009), H. 1}, isbn = {1433-0768}, pages = {115 -- 122}, year = {2009}, language = {en} } @article{ThustPoghossianSchoeningetal.1999, author = {Thust, M. and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Naser, S. and M{\"u}ller-Veggian, Mattea and Kordos, P. and L{\"u}th, H.}, title = {Cross-sensitivity of a capacitive penicillin sensor combined with a diffusion barrier}, series = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. - Vol 1.}, journal = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. - Vol 1.}, address = {The Hague, The Netherlands}, isbn = {90-76699-02-X}, pages = {573 -- 576}, year = {1999}, language = {en} } @article{SchoeningPoghossianYoshinobuetal.2001, author = {Sch{\"o}ning, Michael Josef and Poghossian, Arshak and Yoshinobu, Tatsuo and L{\"u}th, Hans}, title = {Semiconductor-based field-effect structures for chemical sensing}, pages = {188 -- 198}, year = {2001}, language = {en} } @article{HammerQuitterMayntzetal.2023, author = {Hammer, Thorben and Quitter, Julius and Mayntz, Joscha and Bauschat, J.-Michael and Dahmann, Peter and G{\"o}tten, Falk and Hille, Sebastian and Stumpf, Eike}, title = {Free fall drag estimation of small-scale multirotor unmanned aircraft systems using computational fluid dynamics and wind tunnel experiments}, series = {CEAS Aeronautical Journal}, journal = {CEAS Aeronautical Journal}, publisher = {Springer}, address = {Wien}, issn = {1869-5590 (Online)}, doi = {10.1007/s13272-023-00702-w}, pages = {14 Seiten}, year = {2023}, abstract = {New European Union (EU) regulations for UAS operations require an operational risk analysis, which includes an estimation of the potential danger of the UAS crashing. A key parameter for the potential ground risk is the kinetic impact energy of the UAS. The kinetic energy depends on the impact velocity of the UAS and, therefore, on the aerodynamic drag and the weight during free fall. Hence, estimating the impact energy of a UAS requires an accurate drag estimation of the UAS in that state. The paper at hand presents the aerodynamic drag estimation of small-scale multirotor UAS. Multirotor UAS of various sizes and configurations were analysed with a fully unsteady Reynolds-averaged Navier-Stokes approach. These simulations included different velocities and various fuselage pitch angles of the UAS. The results were compared against force measurements performed in a subsonic wind tunnel and provided good consistency. Furthermore, the influence of the UAS`s fuselage pitch angle as well as the influence of fixed and free spinning propellers on the aerodynamic drag was analysed. Free spinning propellers may increase the drag by up to 110\%, depending on the fuselage pitch angle. Increasing the fuselage pitch angle of the UAS lowers the drag by 40\% up to 85\%, depending on the UAS. The data presented in this paper allow for increased accuracy of ground risk assessments.}, language = {en} } @article{KochPoghossianSchoeningetal.2018, author = {Koch, Claudia and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Wege, Christian}, title = {Penicillin Detection by Tobacco Mosaic Virus-Assisted Colorimetric Biosensors}, series = {Nanotheranostics}, volume = {2}, journal = {Nanotheranostics}, number = {2}, publisher = {Ivyspring}, address = {Sydney}, issn = {2206-7418}, doi = {10.7150/ntno.22114}, pages = {184 -- 196}, year = {2018}, abstract = {The presentation of enzymes on viral scaffolds has beneficial effects such as an increased enzyme loading and a prolonged reusability in comparison to conventional immobilization platforms. Here, we used modified tobacco mosaic virus (TMV) nanorods as enzyme carriers in penicillin G detection for the first time. Penicillinase enzymes were conjugated with streptavidin and coupled to TMV rods by use of a bifunctional biotin-linker. Penicillinase-decorated TMV particles were characterized extensively in halochromic dye-based biosensing. Acidometric analyte detection was performed with bromcresol purple as pH indicator and spectrophotometry. The TMV-assisted sensors exhibited increased enzyme loading and strongly improved reusability, and higher analysis rates compared to layouts without viral adapters. They extended the half-life of the sensors from 4 - 6 days to 5 weeks and thus allowed an at least 8-fold longer use of the sensors. Using a commercial budget-priced penicillinase preparation, a detection limit of 100 µM penicillin was obtained. Initial experiments also indicate that the system may be transferred to label-free detection layouts.}, language = {en} } @article{HarzheimMuehmelHeuermann2021, author = {Harzheim, Thomas and M{\"u}hmel, Marc and Heuermann, Holger}, title = {A SFCW harmonic radar system for maritime search and rescue using passive and active tags}, series = {International Journal of Microwave and Wireless Technologies}, volume = {13}, journal = {International Journal of Microwave and Wireless Technologies}, number = {Special Issue 7}, publisher = {Cambridge University Press}, address = {Cambridge}, doi = {10.1017/S1759078721000520}, pages = {691 -- 707}, year = {2021}, abstract = {This paper introduces a new maritime search and rescue system based on S-band illumination harmonic radar (HR). Passive and active tags have been developed and tested while attached to life jackets and a small boat. In this demonstration test carried out on the Baltic Sea, the system was able to detect and range the active tags up to a distance of 5800 m using an illumination signal transmit-power of 100 W. Special attention is given to the development, performance, and conceptual differences between passive and active tags used in the system. Guidelines for achieving a high HR dynamic range, including a system components description, are given and a comparison with other HR systems is performed. System integration with a commercial maritime X-band navigation radar is shown to demonstrate a solution for rapid search and rescue response and quick localization.}, language = {en} } @article{PoghossianThustSchoeningetal.2000, author = {Poghossian, Arshak and Thust, M. and Sch{\"o}ning, Michael Josef and M{\"u}ller-Veggian, Mattea and Kordos, P. and L{\"u}th, H.}, title = {Cross-sensitivity of a capacitive penicillin sensor combined with a diffusion barrier}, series = {Sensors and Actuators B. 68 (2000), H. 1-3}, journal = {Sensors and Actuators B. 68 (2000), H. 1-3}, isbn = {0925-4005}, pages = {260 -- 265}, year = {2000}, language = {en} } @article{SchoeningBrinkmannDemuthetal.2004, author = {Sch{\"o}ning, Michael Josef and Brinkmann, D. and Demuth, C. and Poghossian, Arshak}, title = {CIP (cleaning-in-place)-suitable „non-glass" pH sensor based on a Ta2O5-gate EIS structure}, series = {Digest of technical papers : September 12 - 15, 2004, Rome, Italy, Pontificia Universitas Sancto Thoma Aquinate in Urbe / [conference chairperson: C. Di Natale].}, journal = {Digest of technical papers : September 12 - 15, 2004, Rome, Italy, Pontificia Universitas Sancto Thoma Aquinate in Urbe / [conference chairperson: C. Di Natale].}, address = {Roma}, isbn = {88-7621-282-5}, pages = {857 -- 860}, year = {2004}, language = {en} } @article{PoghossianBerndsenLuethetal.2001, author = {Poghossian, Arshak and Berndsen, Lars and L{\"u}th, Hans and Sch{\"o}ning, Michael Josef}, title = {Novel concepts for flow-rate and flow-direction determination by means of pH-sensitive ISFETs}, series = {Proceedings of SPIE. 4560 (2001)}, journal = {Proceedings of SPIE. 4560 (2001)}, pages = {19 -- 27}, year = {2001}, language = {en} } @article{Staat1993, author = {Staat, Manfred}, title = {Sensitivity of and Influences on the Reliability of an HTR-Module Primary Circuit Pressure Boundary}, series = {Transactions of the 12th International Conference on Structural Mechanics in Reactor Technology (SMiRT-12) / Kussmaul, K. [ed]}, journal = {Transactions of the 12th International Conference on Structural Mechanics in Reactor Technology (SMiRT-12) / Kussmaul, K. [ed]}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {0-444-81515-5}, pages = {147 -- 152}, year = {1993}, language = {en} } @article{Stulpe2020, author = {Stulpe, Werner}, title = {Pairwise coexistence of effects versus coexistence}, series = {Journal of Physics: Conference Series}, volume = {1638}, journal = {Journal of Physics: Conference Series}, number = {012004}, publisher = {IOP}, address = {Bristol}, issn = {1742-6596}, doi = {10.1088/1742-6596/1638/1/012004}, pages = {1 -- 21}, year = {2020}, language = {en} } @article{HonarvarfardGamellaPoghossianetal.2017, author = {Honarvarfard, Elham and Gamella, Maria and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Katz, Evgeny}, title = {An enzyme-based reversible Controlled NOT (CNOT) logic gate operating on a semiconductor transducer}, series = {Applied Materials Today}, volume = {9}, journal = {Applied Materials Today}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2352-9407}, doi = {10.1016/j.apmt.2017.08.003}, pages = {266 -- 270}, year = {2017}, abstract = {An enzyme-based biocatalytic system mimicking operation of a logically reversible Controlled NOT (CNOT) gate has been interfaced with semiconductor electronic transducers. Electrolyte-insulator-semiconductor (EIS) structures have been used to transduce chemical changes produced by the enzyme system to an electronically readable capacitive output signal using field-effect features of the EIS device. Two enzymes, urease and esterase, were immobilized on the insulating interface of EIS structure producing local pH changes performing XOR logic operation controlled by various combinations of the input signals represented by urea and ethyl butyrate. Another EIS transducer was functionalized with esterase only, thus performing Identity (ID) logic operation for the ethyl butyrate input. Both semiconductor devices assembled in parallel operated as a logically reversible CNOT gate. The present system, despite its simplicity, demonstrated for the first time logically reversible function of the enzyme system transduced electronically with the semiconductor devices. The biomolecular realization of a CNOT gate interfaced with semiconductors is promising for integration into complex biomolecular networks and future biosensor/biomedical applications.}, language = {en} } @article{YoshinobuEckenPoghossianetal.2001, author = {Yoshinobu, T. and Ecken, H. and Poghossian, Arshak and Simonis, A. and Iwasaki, H. and L{\"u}th, H. and Sch{\"o}ning, Michael Josef}, title = {Constant-current-mode LAPS (CLAPS) for the detection of penicillin}, series = {Electroanalysis. 13 (2001), H. 8-9}, journal = {Electroanalysis. 13 (2001), H. 8-9}, isbn = {1040-0397}, pages = {733 -- 736}, year = {2001}, language = {en} } @article{PoghossianAbouzarSchoening2008, author = {Poghossian, Arshak and Abouzar, Maryam H. and Sch{\"o}ning, Michael Josef}, title = {Capacitance-voltage and impedance characteristics of field-effect EIS sensors functionalised with polyelectrolyte multilayers}, series = {IRBM. 29 (2008), H. 2-3}, journal = {IRBM. 29 (2008), H. 2-3}, isbn = {1959-0318}, pages = {149 -- 154}, year = {2008}, language = {en} } @article{PoghossianLuethSchultzeetal.2001, author = {Poghossian, Arshak and L{\"u}th, H. and Schultze, J. W. and Sch{\"o}ning, Michael Josef}, title = {(Bio-)chemical and physical microsensor array using an identical transducer principle}, series = {Scaling down in electrochemistry : electrochemical micro- and nanosystem technology ; proceedings of the 3rd International Symposium on Electrochemical Microsystem Technologies, Garmisch-Patenkirchen, Germany, 11 - 15 September 2000 / ed. by J. W. Schultz}, journal = {Scaling down in electrochemistry : electrochemical micro- and nanosystem technology ; proceedings of the 3rd International Symposium on Electrochemical Microsystem Technologies, Garmisch-Patenkirchen, Germany, 11 - 15 September 2000 / ed. by J. W. Schultz}, publisher = {Elsevier [u.a.]}, address = {Amsterdam [u.a.]}, isbn = {0-08-044014-2}, pages = {243 -- 249}, year = {2001}, language = {en} } @article{SchoeningPoghossian2006, author = {Sch{\"o}ning, Michael Josef and Poghossian, Arshak}, title = {BioFEDs (field-effect devices) : State-of-the-art and new directions}, series = {Electroanalysis}, volume = {18}, journal = {Electroanalysis}, number = {19-20}, issn = {1521-4109}, doi = {10.1002/elan.200603609}, pages = {1893 -- 1900}, year = {2006}, language = {en} } @article{HuckPoghossianKerroumietal.2014, author = {Huck, Christina and Poghossian, Arshak and Kerroumi, Iman and Schusser, Sebastian and B{\"a}cker, Matthias and Zander, Willi and Schubert, J{\"u}rgen and Buniatyan, Vahe V. and Martirosyan, Norayr W. and Wagner, Patrick and Sch{\"o}ning, Michael Josef}, title = {Multiparameter sensor chip with Barium Strontium Titanate as multipurpose material}, series = {Electroanalysis}, volume = {26}, journal = {Electroanalysis}, number = {5}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1521-4109 (E-Journal); 1040-0397 (Print)}, doi = {10.1002/elan.201400076}, pages = {980 -- 987}, year = {2014}, abstract = {It is well known that biochemical and biotechnological processes are strongly dependent and affected by a variety of physico-chemical parameters such as pH value, temperature, pressure and electrolyte conductivity. Therefore, these quantities have to be monitored or controlled in order to guarantee a stable process operation, optimization and high yield. In this work, a sensor chip for the multiparameter detection of three physico-chemical parameters such as electrolyte conductivity, pH and temperature is realized using barium strontium titanate (BST) as multipurpose material. The chip integrates a capacitively coupled four-electrode electrolyte-conductivity sensor, a capacitive field-effect pH sensor and a thin-film Pt-temperature sensor. Due to the multifunctional properties of BST, it is utilized as final outermost coating layer of the processed sensor chip and serves as passivation and protection layer as well as pH-sensitive transducer material at the same time. The results of testing of the individual sensors of the developed multiparameter sensor chip are presented. In addition, a quasi-simultaneous multiparameter characterization of the sensor chip in buffer solutions with different pH value and electrolyte conductivity is performed. To study the sensor behavior and the suitability of BST as multifunctional material under harsh environmental conditions, the sensor chip was exemplarily tested in a biogas digestate.}, language = {en} } @article{RolkaPoghossianSchoening2004, author = {Rolka, David and Poghossian, Arshak and Sch{\"o}ning, Michael Josef}, title = {Integration of a capacitive EIS sensor into a FIA system for pH and penicillin determination}, series = {Sensors. 4 (2004)}, journal = {Sensors. 4 (2004)}, isbn = {1424-8220}, pages = {84 -- 94}, year = {2004}, language = {en} } @article{PoghossianSchoening2004, author = {Poghossian, Arshak and Sch{\"o}ning, Michael Josef}, title = {Detecting Both Physical and (Bio-)Chemical Parameters by Means of ISFET Devices}, series = {Electroanalysis. 16 (2004), H. 22}, journal = {Electroanalysis. 16 (2004), H. 22}, isbn = {1040-0397}, pages = {1863 -- 1872}, year = {2004}, language = {en} } @article{SchifferFerreinLakemeyer2012, author = {Schiffer, Stefan and Ferrein, Alexander and Lakemeyer, Gerhard}, title = {Caesar: an intelligent domestic service robot}, series = {Intelligent service robotics}, volume = {5}, journal = {Intelligent service robotics}, number = {4}, publisher = {Springer}, address = {Berlin}, issn = {1861-2776}, doi = {10.1007/s11370-012-0118-y}, pages = {259 -- 276}, year = {2012}, abstract = {In this paper we present CAESAR, an intelligent domestic service robot. In domestic settings for service robots complex tasks have to be accomplished. Those tasks benefit from deliberation, from robust action execution and from flexible methods for human-robot interaction that account for qualitative notions used in natural language as well as human fallibility. Our robot CAESAR deploys AI techniques on several levels of its system architecture. On the low-level side, system modules for localization or navigation make, for instance, use of path-planning methods, heuristic search, and Bayesian filters. For face recognition and human-machine interaction, random trees and well-known methods from natural language processing are deployed. For deliberation, we use the robot programming and plan language READYLOG, which was developed for the high-level control of agents and robots; it allows combining programming the behaviour using planning to find a course of action. READYLOG is a variant of the robot programming language Golog. We extended READYLOG to be able to cope with qualitative notions of space frequently used by humans, such as "near" and "far". This facilitates human-robot interaction by bridging the gap between human natural language and the numerical values needed by the robot. Further, we use READYLOG to increase the flexible interpretation of human commands with decision-theoretic planning. We give an overview of the different methods deployed in CAESAR and show the applicability of a system equipped with these AI techniques in domestic service robotics}, language = {en} }