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Forscher-Alumni-Galerie

Prof. Jin Zhao

Tongji University, China.

Host at the University of Siegen: Prof. Dr. Stephan Habscheid
German Applied Linguistics

Current professional background:

Professor of Germanistische Linguistik (German-Language Linguistics) at Tongji University, China.

Field of research:
  • Linguistics
  • German as a foreign langue
  • Intercultural communication
  • Philosophy of language
Purpose of your last research visit:

The purpose of my research visits is to make new projects at the background of a long-term research collaboration between the University of Siegen, Germany, and Tongji University, China. The main research objective is to research the biographies of Wilhelm von Humboldt and his philosophy of language.

Relation to the University of Siegen and/or to the local host:

I was previously here as a Diesterweg research fellow of FIGS (research institute for humanities and social science) in 2012 and within the bounds of the Friedrich Wilhelm Bessel Research Award of the Humboldt Foundation in 2013 at the Germanistisches Seminar, University of Siegen, hosted by Prof. Dr. Stephan Habscheid.

Future projects / Activities:

Our future plans follow from our research efforts in the field of cultural analysis language and medium linguistics. We have organized a Humboldt research workshop in the October 2017 and on this basis we are planning to edit a Humboldt issue of the Zeitschrift für Literaturwissenschaft und Linguistik (Magazine for literary science and linguistics.)

Impressions of Siegen:

Compared to Shanghai Siegen is an idyllic city. The cakes in Naschwerk are the best in Germany. Siegen is a city with a very good quality of life.

Dr. Olga Tsurtsumia

Georgian Technical University

Host at the University of Siegen: Prof. Hans-Jürgen Christ
Priv. Doz. Dr.-Ing. habil. B. Gorr
Chair of Materials Science and Testing

Current professional background:

I have held a permanent position as a senior scientific researcher at the Republic Center for Structure Research (RCSR) of the Georgian Technical University (GTU) since 2003. The main research field of the RCSR is the investigation of micro- and nano-structures of materials, their properties, peculiarities and behaviour in different environments. My responsibilities are particularly related to studying the behaviour of high temperature corrosion/oxidation resistant materials, development of heat resistant coatings and new technologies related to these areas.

Field of research:
  • Materials Science; High temperature alloys and coatings
Purpose of your last research visit:

I have collaborated with the University of Siegen’s Chair of Materials Science and Testing for many years. My last visit there was for one week in April 2018, during which I held an intense schedule of meetings, scientific-research, as well as social activities to celebratethe chair’s 25th anniversary. This has allowed a good opportunity for an exchange of ideas, experience and information on the newest high temperature material related studies and projects going on in our two research groups (GTU and Uni Siegen). These exchanges occurred during private conversations, official meetings, and seminars given to an auditorium consisting of professors, lecturers, and students as well as the technical staff of the department.

Relation to the University of Siegen and/or to the local host:

Collaboration between our two groups has occurred for about 10 years. I met one of my co-hosts, Priv. Doz. Dr.-Ing. habil. B. Gorr from University Siegen, at an international conference in France where we discussed our topics of research and found lots of common areas of interest, we then began to plan our further collaboration. Since then I have visited the chair of materials science lead by Prof.Dr.-Ing. habil. H.-J. Christ many times in the scopes of projects funded by the AvH (Alexander von Humboldt) foundation or the DAAD (German academic exchange service). Besides the exchange visits my hosts and I also regularly meet at different international conferences dedicated to the topics of materials science.

Future projects / Activities:

Since our collaboration with the Materials Science chair of University Siegen has always been very fruitful, we plan to continue this also in future. We are always up to the new challenges of participating in both the large international and multi-partner research projects as well as the smaller ones.

Impressions of Siegen:

I consider Germany to be my second motherland because I have spent many years of my life in this country. I was honoured to work with many distinguished German (as well as international) scientists in the Forschungszentrum Jülich, BAM (Federal Institute for Materials Research and Testing) and of course the University of Siegen. I am always happy to come to Germany and especially to Siegen because there are so many colleagues and friends who make this place special for me.

Dr. Nowsheen Goonoo

Biomaterials, Drug Delivery & Nanotechnology Unit, Centre for Biomedical and Biomaterials Research (CBBR), University of Mauritius

Host at the University of Siegen: Prof. Holger Schönherr
Chair of Materials Science and Testing

Current professional background:

I am a postdoctoral researcher currently working at the Biomaterials, Drug Delivery & Nanotechnology Unit, Centre for Biomedical and Biomaterials Research (CBBR), University of Mauritius.

Field of research:
  • High end biomedical applications of naturally-derived polysaccharides, for example seaweeds and Aloe vera.
Purpose of your last research visit:

The purpose of my last visit in March 2018 which lasted for 2 months was mainly to design new polymeric fiber based substrates and to test their efficacy in capturing various cancer cell lines such as pancreatic and breast cancer cells. This work was conducted at the Physical chemistry I Group, which is led by Prof. Schönherr.

Relation to the University of Siegen and/or to the local host:

I first met Prof. Schönherr in 2013, at a Polychar conference in Gwangju, Republic of Korea. We began to talk about our work and we found out that there was much to be gained by conducting research together. Since then there has been a close cooperation between our research groups. The University of Siegen provides expertise in cell work and also allows us access to certain equipment which is not yet available in Mauritius. Whereas myself and the CBBR can offer extensive experience and expertise into the scientific applications of Seaweed and Aloe vera, as they are native to Mauritius and the surrounding ecosystem. It is noteworthy to mention that I spent one year (2016-2017) working in Prof Schönherr’s group as a Georg Forster Postdoctoral Researcher (awarded by the Alexander von Humboldt Foundation). The research stay was very fruitful and led to several joint publications with Prof Schönherr but also with other departments of the University of Siegen.

Future projects / Activities:

For us it is most important to ensure that the current research is complete before we begin anything new. However it is never possible to know exactly how much longer the current research will take; the results can lead us in many different directions. We will continue to cooperate closely to test the effectiveness of different substrates with varying fiber topographies in capturing cancer cells. Thankfully it is relatively easy to share samples between Siegen and Mauritius by mail, and modern technology allows us to always stay in close contact.

Impressions of Siegen:

I found the working group of Prof. Schönherr to be warm and welcoming, they really made me feel at home very quickly. Siegen itself is very nice, and it is also not so big, coming from a small island I found Siegen easy to adjust to, except for the weather of course!

Prof. Seung Wook Jung

Konyang University, Republic of Korea

Host at the University of Siegen: Prof. Kristoph Ruland
Chair of Materials Science and Testing

Current professional background:

I am a Professor at the Department of Cyber Security Engineering at Konyang University in Nonsan, South Korea.

Field of research:
  • My research specialty is in blockchains, which is a specialised and decentralised way of recording economic transactions. This technology has many applications, for example it forms the basis for cryptocurrencies. My current research looks at how to use blockchains in smart energy grids. Smart energy grids also have many different uses, they can for example, make it easier for consumers to sell any electricity they generate back into the grid.
Purpose of your last research visit:

I came to Germany in order to cooperate on a project called "smart grid blockchain for end-to-end authentication and logging" with Prof. Dr. Ruland at the University of Siegen.

Relation to the University of Siegen and/or to the local host:

I studied my PhD at the University of Siegen a few years ago, Prof. Ruland was my supervisor.

Future projects / Activities:

Prof. Ruland proposed a project about blockchains for smart grids to the Pajako program (a German Ministry of Foreign Affairs initiative to foster partnerships with Japan and Korea). We have just made a memorandum of understanding (MOU) between the Universities of Siegen and Konyang to facilitate tighter cooperation in future. We will regularly visit both Universities to conduct this joint international project. By combining Prof Ruland’s expertise in smartgrids with mine in blockchains, we can create research that is greater than the sum of its parts.

Impressions of Siegen:

Siegen is a quiet and green city. I usually live in a larger metropolitan area so I find Siegen to be an easy place to relax because of the fresh air.

Prof. Jian Xiong

Harbin Institute of Technology, China

Host at the University of Siegen: Prof. Hans-Jürgen Christ
Chair of Materials Science and Testing

Current professional background:

I currently hold the title of a full Professor, I am also a Principal Research Scientist at the group of Mechanics of Lightweight Composite Materials and Structures, Center for Composite Materials and Structures, at the Harbin Institute of Technology, China.

Field of research:
  • Mechanics of Lightweight Composite Materials and Structure (Composite Materials, Cellular Materials, Porous Materials, Biomaterials, Sandwich Panels, Lightweight Structures, Multifunctional Structures)
Purpose of your last research visit:

The purpose of my research visits is to set up a long-term research collaboration between the University of Siegen, Germany, and the Harbin Institute of Technology, China. The main research objective is to present the results of combining experimental, numerical and analytical studies to investigate the micro-structures and mechanical properties of the cellular structures in the mammal skull. The results of our research are expected to be useful for understanding the mechanical properties and damage mechanisms of cellular structures in the mammal skull and these fascinating features serve as suggestions to researchers to design or fabricate new bio-inspired materials to improve our lives.

Relation to the University of Siegen and/or to the local host:

I was previously a Humboldt Research Fellow at the Institut für Werkstofftechnik, University of Siegen from March, 2015 to August, 2016. The time before that was from September to December, 2013, when I was a visiting DAAD scholar. Prof. H-J. Christ was my host during both of these visits. I have joint research and publications with Prof. H-J. Christ and Dr. Arne Ohrndorf which present a systematic investigation on the failure mechanism and energy absorption of skull cellular bones under low- and medium-velocity impact loadings.

Future projects / Activities:

Our future plans naturally follow from our research efforts in the past and present in the field of lightweight cellular bones materials. We are planning to prepare a research proposal for the NSFC-DFG (Deutsche Forschungsgemeinschaft and National Natural Science Foundation of China) funding programme and write joint publications in the following years. During my latest visit to Siegen, I gave several presentations about my recent research work to other professors at the University. This may lead to some future cooperation with different departments on topics such as composite materials or automobile structures.

Impressions of Siegen:

The Radler beer is delicious, and so is the food, including the food from the University canteen on top of the mountain. The scenery in Siegen is very beautiful. I have been to Siegen four times and the University is an important part of my research life now. My hosts Prof.H-J. Christ, and Dr. Arne Ohrndorf have always been very nice to me and have helped me a lot in my research. I miss Siegen very much and hope to return again soon.

Prof. Teodolito Guillén Girón

Tecnologico de Costa Rica

Host at the University of Siegen: Prof. Hans-Jürgen Christ
Chair of Materials Science and Testing

Current professional background:

Prof. Dr.-Ing. In Material Science and Engineering

Field of research:
  • Biomaterials and biomechanical analysis and tissue engineering;
Purpose of your last research visit:

Interest in Research collaboration and participation at the 25th anniversary of the Chair of Materials Science and Testing.

Relation to the University of Siegen and/or to the local host:

At the University of Siegen I studied my Msc. In Mechatronics and Dr.-Ing. in Mechanical Engineering

Future projects / Activities:

We are planning to apply for a student mobility project with the DAAD (German academic exchange service) and with the Bundesministerium für Bildung und Forschung (German Federal Ministry for education and research). Exactly when we will do so depends on whether these institutions issue calls this year or in future years.

Impressions of Siegen:

Siegen is a multicultural city with a remarkable University where people and facilities make it possible to carry out different kinds of research. Especially in my field I find the University of Siegen to be a very strong partner with which to develop specialized research projects.

Prof. George Chagelishvilli

Georgian National Academy of Sciences, Georgia

Host at the University of Siegen: Prof. Holger Foysi
Chair of Fluid Mechanics

Current professional background:

Academic of the Georgian National Academy of Sciences, Principal Research Scientist at the Institute of Geophysics, Tbilisi State University, and a Principal Research Scientist at the Abastumani Astrophysical Observatory, Ilia State University.

Field of research:
  • Natural and engineering plasma and fluid dynamics;
  • Linear phenomena induced by shear flow non-normality;
  • Self-organization (including formation of spatiotemporal patterns) and turbulence in hydrodynamic and magnetohydrodynamic shear flow systems;
  • Aeroacoustics of turbulent shear flows.
Purpose of your last research visit:

The purpose of my research visits is the investigation of aerodynamic sound generation (aeroacoustics) which is a major subject of fluid dynamics, with applications in wide areas of engineering problems, such as aircraft jet engines, naval and automotive applications. The emission of noise from mixing processes and turbulence of engineering flows is to be reduced owing to modern regulations, which require a substantial reduction of the perceived sound levels. Working on this problem, we based our study on the rethinking of non-uniform/shear flow dynamics by the hydrodynamic stability community in 1990s. This approach, formed as a result of this rethinking, led to a breakthrough in the understanding and description of turbulence in different natural and engineering shear flows. Specifically, we adapted this trend of research to the aerodynamic sound generation in time-developing shear layers.

Relation to the University of Siegen and/or to the local host:

I have joint research and publications with Prof. Holger Foysi and Dr. George Khujadze where a new scheme of turbulence control is elaborated on the example of plane Couette flow. Our scientific interests also coincide in the field of aeroacoustics of shear flow systems. In my opinion the collaboration is quite productive and our perspective is to get closer to engineering flows.

Future projects / Activities:

Our future plans naturally follow from our efforts in the past and present. At first, we are planning to work on the control of the aerodynamic sound generation in time-developing shear layers. We also wish to apply the elaborated scheme of turbulence control to flows of practical interests, for instance, - to boundary layer flows

Impressions of Siegen:

Siegen is a pleasant city, very convenient for people who are visiting with a goal similar to mine: to live quietly and concentrate on science. However, it would be better if there were more guest house apartments at the University.

Dr. Ozgül Öztürk

Host at the University of Siegen: Prof. Dr. Ullrich Pietsch
Chair of the Department of Solid State Physics

Current professional background:

Research scientist at the University of Siegen physics department.

Field of research:

I currently work in the field of solid state physics, specifically my project is about nanowires.

Purpose of your last research visit:

I actually did my post-doctoral degree here in Siegen. That was when I began work on my nanowires project. Nanomaterials could be inserted onto the graphene, and then by combining this with polymers we are able to produce new kinds of optoelectronic sensors.

Relation to the University of Siegen and/or to the local host:

After finishing my PHD in Istanbul I came to Siegen originally for my post doctoral degree and worked with Prof. Dr. Ullrich Pietsch. After working in Istanbul for 8 years as an assistant professor, I have been offered a permanent position here in Siegen.

Future projects / Activities:

The University of Siegen is great for my research, so therefore I want to continue working on these projects here. We are currently performing experiments to optimise the graphene and nanowire samples further. As Richard Feynman, one of the first scientists to study nanomaterials, said, “there is plenty of room at the bottom.” So the possibilities with nanoscience are endless, with possible uses in the fields of biophysics, material science and pharmaceuticals.
I am also involved with a joint project in Jordan which uses a synchrotron, one of the most wonderful things about this project is that it highlights the power of science to bring people from different nations together. Even if their governments are currently not getting along with one another.

Impressions of Siegen:

Compared to Istanbul, Siegen is like a different planet! But I find it to be a nice change from living in a different city. I found everyone here, including Professor Pietsch to be very warm and welcoming to me. Siegen also feels like a nice place to raise my child.

Dr. Daria Berdnikova

Host at the University of Siegen: Prof. Dr. Heiko Ihmels
Department of Chemistry–Biology,
Chair of Organic Chemistry II

Current professional background:

I am a Marie Sklodowska-Curie fellow currently working on an independent European project here at the university.

Field of research:

Light-controlled interactions of organic molecules with nucleic acids.

Purpose of your last research visit:

On my last research visit, I performed investigations of organic molecules, which can be applied for light-controlled interactions with DNA. I design a molecule, synthesize it, check its photochemical properties, and then see if it can targetedly attack the nucleic acid upon irradiation. This approach can be used for killing undesirable cells, such as cancer cells. My current project is dealing with RNA instead of DNA, because this is more perspective for medical and biological purposes.

Relation to the University of Siegen and/or to the local host:

My former supervisor in Russia already had an established collaboration with Prof Ihmels here in Siegen, and they both encouraged me to apply for a short-term DAAD scholarship. After successfully receiving this scholarship in 2011, I came to Siegen to work with Prof Ihmels for the first time. Later on, I returned to Siegen several times to perform small joint projects. In 2017, I finally moved here for my current 2-years long project with Prof Ihmels.

Future projects / Activities:

We are currently 3 months into a 2-year research project. After we have some promising results, we can arrange some collaboration with biologists and biochemists to test our newly developed methods on fighting with cancer and bacterial cells and viruses.

Impressions of Siegen:

I’m originally from Moscow, which is very large, noisy and overcrowded city. Being in such a large city also made me feel separated from nature. So I adore Siegen because it has everything I need and I feel much closer to nature.

Dr. Gouri Shankar Giri

Host at the University of Siegen: Prof. Dr. Christof Wunderlich
Department of Physics,
Chair of Experimental Quantum Optics

Current professional background:

Postdoctoral Research Fellow at the Physics Department, University of Siegen

Field of research:

Quantum computing with trapped ions

Purpose of your last research visit:

I was a recipient of the Marie Curie Fellowship in order to work with Prof. Christof Wunderlich. Together we are developing essential elements for an ion trap based large-scale quantum computer.


Relation to the University of Siegen and/or to the local host:

I originally met Prof. Christof Wunderlich at the University of Sussex in the U.K, whilst we were working on a large-scale EU project. Conventionally, logic gate operations in ion trap quantum computers are realized with optical radiation (such as lasers). Prof. Wunderlich proposed and demonstrated a new scheme that ensures realization of logic gates using long wavelength radiation (such as microwaves). I was interested in working with him and I asked to join his research team in Germany. After successfully applying for the Marie Curie Fellowship in 2014, I took up my position as a Postdoctoral Research Fellow here in Siegen.

Future projects / Activities:

I will continue to work toward the development of ion trap quantum computer in collaboration with the research department here. I expect quantum computing to hugely advance in the coming decades, with the potential to change how we use computers in many different fields.

Impressions of Siegen:

It is certainly a good place to study, the living costs are low, and the campus, especially the physics campus is beautiful.

Dr. phil. Hyeongjoo Kim

Chung-Ang University Department of Philosophy, Republic of Korea

Host at the University of Siegen: Prof. Dr. Dieter Schönecker
Department of Philosophy,
Chair of Practical Philosophy

Current professional background / Field of research:

Philosophy of I. Kant. Metaphysic, Didactics of Philosophy

Purpose of your last research visit / Relation to the University of Siegen and/or to the local host:

Cooperation of project "Sachunterricht vernetzen", Writing the paper "was heißt empirischer Satz"/ past supervisor

Future projects / Activities:

"Time Lecturer Support Project" of NRF(National Research Foundation of Korea): A Dialectic of Thought and Being: Kant-Fichte Comparison on their respective Attitudes toward descartes' Cogito-Thesis

Prof. Dr. Bo Song

Professor at Soochow University, China

Host at the University of Siegen: Prof. Dr. Holger Schönherr
Department of Chemistry,
Chair of Physical Chemistry

Current professional background:

Professor at Soochow University

Field of research:
  • Supramolecular assembly
  • Colloidal and interfaces
  • Fluorescence probes for bio-imaging
Purpose of your last research visit / Relation to the University of Siegen and/or to the local host:

The main target of my visit is to establish the collaboration with Prof. Holger Schoenherr in form of research study, exchange student, and bilateral joint fund. Actually, these items are connected, and will become each other’s support.

Future projects / Activities:

(1) Currently, we nailed down the specific research collaboration starting with fluorescence measurement and interpretation. Besides Prof. Holger Schoenherr and I, Sergy, an expert on fluorescence, will be involved. Intensified discussion can be conducted via email or network meeting (for example Skype). (2) Around the end of 2017, we will try to encourage student join the collaboration. From my side, I try to find financial sources to support master student to register as a PhD student in Siegen University. The student will be co-guided by Holger and me. By doing this, for one thing we can have more close collaboration, and for the other thing we can expand to larger scale collaboration (involve more project, student, and even professors). (3) The above-mentioned two aspects will make the bases for bilateral joint fund application. We hope that the health feedback of our lab-level collaboration can be expanded to depart-level, and even more.

Dr. Alexey Yushkov

Czech Academy of Sciences the Institute of Physics, Prague

Host at the University of Siegen: Prof. Dr. Markus Risse
Department of Physics,
Experimental Particle Physics

Current professional background:

Senior researcher at the Institute of Physics, Czech Academy of Sciences, Prague Coordinator of the physics task "Composition" of the Pierre Auger Collaboration

Field of research:

Experimental physics of ultra-high-energy cosmic rays

Purpose of your last research visit:

Discussion of details of the common work on analysis of the mass composition of ultra-high energy cosmic rays and of the photon searches using data of the Pierre Auger Observatory. Coordination of various activities within the Auger collaboration for publications and discussion with the students of the Siegen group of their master and PhD projects.

Relation to the University of Siegen and/or to the local host:

Postdoctoral position in the group of Prof. Markus Risse, 07/2013-03/2016

Future projects / Activities:

Research topics described above will continue also after the two planned research visits and surely reach into the next 1-2 years. There are more analysis topics, not yet mentioned, that may later come in addition; also in terms of hardware expertise (electronics of Auger detectors) and of the ongoing upgrade of the Auger Observatory, communications may prove useful.

To this end, the present visits would also be used to check options for further third-party funding of research visits (like DAAD). This includes mutual visits of various group members (Siegen-Prague), with the aim to strengthen the links between the two working groups.

Unsere Forscher-Alumni-Galerie befindet sich im Aufbau. Die Vorstellung weiterer Forscher-Alumni-Porträts folgt in Kürze.

Currently we are working on the Research Alumni Gallery. More profiles will be published soon.