Girls' Day 2018
26.04.2018
Am 26. April ist Girls´Day.
Für nähere Informationen klicken Sie bitte hier:
https://www.tf.uni-kiel.de/de/studium/studieninteressierte-schuelerinnen/girls-day
Kolloquiumsvortrag (MAWI), Prof. Dr. Ulrich Schwarz,Heidelberg University, Institute for Theoretical Physics am 04.06.2018
Sommerfest 2018
Kolloquiumsvortrag (MaWi), Prof. Richard Fu, Faculty of Engineering and Environment, Northumbria University, Newcastle / am 28.05.2018
28.05.2018 von 17:15 bis 18:00
Institute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel
Titel: Acoustic wave lab-on-chip is now flexible, bendable and potentially wearable!
Abstract: Thin film acoustic wave devices especially surface acoustic waves (SAW) have been used for sample preparation (sorting, separating, mixing, nebulization and dispensing) as well as bio-sensing. This talk will focus on our recent work of flexible and wearable thin film acoustic wave lab-on-chip (mainly using ZnO and AlN films on flexible substrates) for acoustic wave based microfluidic applications. We report theoretical and experimental studies of the evolution, hybridization and decoupling of wave modes in the flexible acoustic wave devices, as well as their vibration patterns. thus providing a guide for different microfluidic applications. Thin film based flexible SAW devices have the potential to be integrated with other microfluidic and sensing technology on flexible substrates including CMOS integrated circuits to make novel lab-on-chip for bio-detection for wearable and flexible applications. SAW devices on commercial polymer and aluminum foils have been fabricated and various microfluidic functions, such as mixing, pumping, jetting have been demonstrated with bent and deformed acoustic wave devices.
About Prof. Richard Fu. He has extensive experience in smart thin film/materials, biomedical microdevices, lab-on-chip, micromechanics, MEMS, nanotechnology, sensors and microfluidics. He has established a good reputation from his pioneer research work on shape memory films, piezoelectric thin films, nanostructured composite/films for applications in MEMS, sensing and energy applications. He published over 330 science citation index (SCI) journal papers (including Progress in Materials Science and Nature Communications), 2 books, 20 book chapters, and over 120 conference papers. His current SCI H-index is 39 with over 6500 citations. He is associate editor/editorial board members for seven international journals including Scientific Report. He is regular journal paper reviewers for more than 30 journals, and has co-organized 12 international conferences worldwide, and co-edited six special issues for journals.
Kolloquiumsvortrag (INF), Dr. Hermann Lindhorst, Fachanwalt für IT-Recht / am 25.05.2018
25.05.2018 von 14:15 bis 15:45
Christian-Albrechts-Platz 2, 24118 Kiel, Raum: Hörsaal A
Titel: „Datenschutz: Anbruch eines neuen Zeitalters? – Zur Geltung der EU-Datenschutzgrundverordnung ab dem 25. Mai"
Abstract: Ab dem 25.5.2018 haben alle Bürger, Behörden und Unternehmen neue Vorschriften zum Datenschutz zu beachten, denn dann gelten europaweit die Regelungen der „EU-Datenschutzgrundverordnung“ sowie in Deutschland ein Bundesdatenschutzgesetz, bei dem nicht ein einziger Paragraph so wie vorher geblieben ist. Darauf weisen seit Monaten nicht nur Datenschützer, sondern auch viele andere hin, wie z.B. Unternehmensberater, Rechtsanwälte und Zertifizierungsunternehmen wie der TÜV. Doch was wird sich ab Ende Mail tatsächlich ändern? Hat vor dem Hintergrund z.B. der drastisch erhöhten Sanktionen ein echtes Umdenken stattgefunden oder bleibt der Datenschutz eine ungeliebte bürokratische Bürde?
Kolloquiumsvortrag (INF), Dr. Matthias Mnich, Uni Bonn / am 01.06.2018
01.06.2018 von 14:15 bis 15:45
Institut für Informatik, Ludewig-Meyn-Straße 2, 24118 Kiel, Raum: Übungsraum 2/K
Titel: Multivariate Algorithms for Machine Scheduling Problems
Abstract: Machine scheduling problems are a long-time key domain of algorithms and complexity research. In those problems, we are generally given a finite set J of jobs with certain characteristics, and we must find a schedule for processing the jobs on one or more machines, which also may have their individual specifications. Typical characteristics of a job are its processing time, its release date, its due date, or its importance reflected by an integer weight. A significant amount of research has been devoted in the past 60 years towards designing polynomial-time algorithms which approximate the value of optimal schedules (for various objective functions). A novel approach to machine scheduling problems are multivariate algorithms, which aim to find a provably optimal schedule at the expense of an increased run time, which is permitted to depend moderately exponentially on the job characteristics or other structural parameters. We survey some recent algorithms in this paradigm, present some novel results, and discuss several challenging open problems in this exciting research area.
Prof. Jansen
Kolloquiumsvortrag (MAWI), Jan Lammerding, Meinig School of Biomedical Engineering & Weill Institute for Cell and Molecular Biology Cornell University/ am 11.06.2018
11.06.2018 von 17:15 bis 18:00
Institute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel
Titel: Squish and squeeze – Nuclear mechanics and mechanotransduction in physiology and disease
Abstract: The nucleus is the characteristic feature of eukaryotic cells and houses the genomic information of the cell. The Lammerding laboratory is combining cell and molecular biology approaches with microfabricated devices that mimic physiological environments, live-cell microscopy, and in vivo models to investigate how physical forces acting on the nucleus, for example, in contracting muscle cells or during migration of cells through tight interstitial spaces, can challenge the integrity of the nucleus, alter its structure, and cause genomic and transcriptional changes. These processes play important roles in cellular mechanotransduction, i.e., the ability of cells to convert mechanical stimuli into biochemical signals, but can also contribute to various diseases when the nuclear structure is perturbed by mutations or altered protein expression. In particular, mutations in the nuclear envelope proteins lamin A/C are responsible for a broad spectrum of diseases (laminopathies), including Emery-Dreifuss muscular dystrophy (EDMD) and dilated cardiomyopathy. The fact that most mutations result in highly tissue-specific disease phenotypes primarily affecting skeletal and cardiac muscles, in spite of the near ubiquitous expression of lamins A/C, suggest that lamin mutations may render cells more sensitive to mechanical stress, which then causes progressive cell failure in mechanically stressed tissues. I will discuss our recent findings that highlight the importance of lamins A/C in mediating nuclear stability and mechanotransduction in mechanically stressed cells and tissues. At the same time, increased nuclear deformability, caused for example by reduced levels of lamins A/C, can promote cell migration through tight spaces with cross-sections smaller than the nuclear diameter, where the large size and rigidity of the nucleus can constitute a rate-limiting factor. I will present recent findings that demonstrate the importance of nuclear mechanics during cell migration in confined environments in vitro and in vivo, as well as the functional consequences of cells having to squeeze their large nuclei through tight interstitial spaces and small pores in the extracellular matrix network, with a particular focus on breast cancer.
Prof. Selhuber
Kolloquiumsvortrag (MAWI), Nian. X Sun W.M. Keck Laboratory for Integrated Ferroics, & ECE Department, Northeastern University, Boston, / am 18.06.2018
18.06.2018 von 17:15 bis 18:00
Institute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel
Titel: RF NEMS Magnetoelectric Sensors
Abstract: The coexistence of electric polarization and magnetization in multiferroic materials provides great opportunities for realizing magnetoelectric coupling, including electric field control of magnetism, or vice versa, through a strain mediated magnetoelectric coupling in layered magnetic/ferroelectric multiferroic heterostructures [1-9]. Strong magnetoelectric coupling has been the enabling factor for different multiferroic devices, which however has been elusive, particularly at RF/microwave frequencies. In this presentation, I will cover the most recent progress on new integrated magnetoelectric materials, magnetoelectric NEMS (nanoelectromechanical system) based sensors and antennas. Specifically, we will introduce magnetoelectric multiferroic materials, and their applications in different devices, including: (1) novel ultra-compact RF NEMS acoustic magnetoelectric antennas immune from ground plane effect with < l0/100 in size, self-biased operation and potentially 1~2% voltage tunable operation frequency; and (2) ultra-sensitive RF NEMS magnetoelectric magnetometers with ultra-low noise of ~1pT/Hz1/2 at 10 Hz for DC and AC magnetic fields sensing. These novel magnetoelectric devices show great promise for applications in compact, lightweight and power efficient sensors and sensing systems, ultra-compact antennas and for radars, communication systems, biomedical devices, IoT, etc.
Reference: 1. N.X. Sun and G. Srinivasan, SPIN, 02, 1240004 (2012); 2. J. Lou, et al., Advanced Materials, 21, 4711 (2009); 3. J. Lou, et al. Appl. Phys. Lett. 94, 112508 (2009); 4. M. Liu, et al. Advanced Functional Materials, 21, 2593 (2011); 5. T. Nan, et al. Scientific Reports, 3, 1985 (2013); 6. M. Liu, et al. Advanced Materials, 25, 1435 (2013); 7. M. Liu, et al. Advanced Functional Materials, 19, 1826 (2009); 8. Ziyao Zhou, et al. Nature Communications, 6, 6082 (2015). 9. T. Nan, et al. Nature Comm. 8, 296 (2017).
Short Bio: Nian Sun is professor at the Electrical and Computer Engineering Department, Director of the W.M. Keck Laboratory for Integrated Ferroics, Northeastern University, and Thrust Leader of 2-D Multiferroics in the NSF ERC Transitional Applications of Nanoscale Multiferroic Systems (TANMS). He received his Ph.D. degree from Stanford University. Prior to joining Northeastern University, he was a Scientist at IBM and Hitachi Global Storage Technologies. Dr. Sun was the recipient of the NSF CAREER Award, ONR Young Investigator Award, the Søren Buus Outstanding Research Award, etc. His research interests include novel magnetic, ferroelectric and multiferroic materials, devices and subsystems. He has over 240 publications and over 20 patents and patent applications. One of his papers was selected as the “ten most outstanding full papers in the past decade (2001~2010) in Advanced Functional Materials”. Dr. Sun has given over 100 plenary or invited presentations and seminars in national and international conferences and universities. He is an editor of Sensors, and IEEE Transactions on Magnetics, and a fellow of the Institute of Physics, and of the Institution of Engineering and Technology.
Kolloquiumsvortrag (MAWI), Iain Dunlop, Imperial College London / am 25.06.2018
25.06.2018 von 17:15 bis 18:00
Institute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel
Titel: Engineering the immune system with graphitic nanomaterials
Abstract: Recent work shows that immune cell signalling is controlled by supramolecular assemblies of molecules on the c. 100 nm scale. This insight offers the possibility of developing new nano-scale reagents to direct immune cell activation. We have used nano-flakes of graphene oxide as templates to develop molecular nanoclusters of monoclonal antibodies (mAb) that stimulate immune cells. This technology is applied to Natural Killer (NK) cells: a key cell type in the body’s natural anti-cancer defences. The nanoclusters successfully activate NK cells, enhancing the potency of the clustered mAb. This demonstrates molecular nanoclustering as a powerful approach to developing new immunomodulatory reagents with graphene oxide -templated nanoclusters a strong candidate technology.
Kolloquiumsvortrag, Leon Abelmann, "KIST Europe" und "University of Twente" am 02.07.2018
02.07.2018 von 17:15 bis 18:00
nstitute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel
Titel: Observing magnetic objects in fluids
Abstract: At KIST Europe, we specialize in studying magnetic objects in a fluid enviroment. The objects I would like to present are
-Magneto-tactic bacteria, which we observe for instance inside a microfluidic chip (https://youtu.be/3uUL4ooM6KI)
- 3D printed centimeter sized objects with embedded magnets inside a turbulent water flow, which we use to study self-assembly processes (https://youtu.be/8NleFldyf50)
- Supsensions of microfabricated permalloy discs with diameters of 150-3000 nm, which might be a better alternative to magnetic colloids for magnetic particle imaging (https://journal.iwmpi.org/index.php/iwmpi/article/view/76)
Prof. Mc Cord
Kolloquiumsvortrag, Prof. King,TU Berlin / am 09.07.2018
09.07.2018 von 17:15 bis 18:00
Institute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel
Titel: Closed-loop active flow control of repetitive disturbances in a linear stator cascade
Abstract: This presentation demonstrates the mitigation of disturbances in a periodically throttled compressor stator cascade by closed-loop active flow control. The work is motivated by the replacement of a constant pressure combustion of a gas turbine with the significantly more efficient constant volume counterpart. One way of implementing a constant volume combustion is a pulse detonation engine. In such an engine, the heat addition takes place in a discontinuous, detonative manner while the inlets to the combustion tubes are closed. As a result, periodic pressure waves will be transmitted upstream into the compressor. A successful exploitation of this new combustion system therefore strongly depends on the ability to dampen negative effects resulting from these disturbances. To this end, active flow control is applied based on two different actuators for the sidewalls and the blade. Blowing fluidic switches are used to excite flow modes to decrease detrimental corner vortices and premature flow separation. For closed-loop control, the repetitive nature of the disturbances can be utilized to increase control performance. Three concepts will be considered here and compared. In iterative learning control (ILC), either in a frequency-based or time-based formulation, un-modeled nonlinear effects and disturbances are learned over the cycles to some extent and used to adapt the control inputs. As an alternative, repetitive model predictive control (RMPC) is introduced which more directly makes use of remaining control errors of a last cycle. RMPC and one of the ILC formulations, which solve respective optimization problems on-line, outperformed the considered frequency-based version of classical ILC with respect to control performance. However, the frequency domain ILC variant might benefit from its robustness features.
Kolloquiumsvortrag (ET/IT), Prof. Sawodny, Institut für Systemdynamik, Universität Stuttgart / am 16.07.2018
16.07.2018 von 17:15 bis 18:00
Institute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel
Titel: Methoden der Systemdynamik in der Optomechatronik
Abstract: Im Vortrag werden anhand verschiedener Beispiele die Anwendung von Methoden der Systemdynamik auf Fragestellungen in der Optomechatronik vorgestellt. Diese findet vorzugsweise in der adaptiven Optik eine Anwendung. Nach einer kurzen Einführung in die grundsätzliche Thematik der adaptiven Optik werden Anwendungen im Kontext der Großteleskope vorgestellt. Hier werden verschiedene Ansätze wie beispielsweise zur Abbildungsverbesserung durch vorsteuernde Vibrationskompensation und eine Methode zur thermischen Drift-Kompensation präsentiert. Auch atmosphäreninduzierte Fehler können durch geeignete Modellierung und Methoden der Störgrößenkompensation wirksam unterdrückt werden. Abschließend werden Ansätze zur Modellierung und Steuerung adaptiver optischer Elemente in Laserresonatoren vorgestellt.