جستجوی استاد راهنمای دانشگاهی

Prof. Stefan Eisebitt is a Director at the Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie and holds a Professorship in Experimental Physics at the Technische Universität Berlin. His research focuses on ultrafast magnetization dynamics, nanoscale structure analysis, and novel imaging techniques using coherent XUV/X-ray spectroscopy. He leads the Transient Electronic Structure and Nanoscience group and is involved in cutting-edge projects involving femtosecond laser-driven X-ray sources and spintronic materials. Education and Career: He obtained his Diplom (1992) and Ph.D. (1996) from Cologne University, followed by postdoctoral research at the University of British Columbia and Forschungszentrum Jülich. He became a Privatdozent at Humboldt-Universität Berlin (2005) and held professorships at TU Berlin (2008–2015) and Lund University (2012–2015) before his current role since 2015. He leads the Functional Nanomaterials joint research group between Helmholtz-Zentrum Berlin and TU Berlin. Research Interests: His work spans transient electronic structure, ultrafast optical manipulation of magnetization, nanoscale material characterization, and advanced coherent imaging methods. Key techniques include XUV/X-ray spectroscopy, laser-driven plasma sources, and femtosecond time-resolved studies. Professional Roles: He chairs the Physikalische Gesellschaft zu Berlin and the Elettra Scientific Advisory Council. He has held leadership roles in the European XFEL Scientific Advisory Committee and the Komitee für Forschung mit Synchrotronstrahlung (KFS). His lab develops state-of-the-art setups for ultrafast X-ray scattering and holography.

• Ultrafast Spectroscopy
• Magnetism
• Materials Science
• +۵ مورد دیگر

Prof. Dr. Michael Horn-von Hoegen is a full professor in the Faculty of Physics at the University of Duisburg-Essen , Germany. His research focuses on ultrafast structural dynamics , surface physics , and 2D materials , particularly using electron diffraction and plasmonic imaging techniques. He leads the Horn-von Hoegen Group , which plays a central role in the Collaborative Research Center CRC 1242 Non-Equilibrium Dynamics of Condensed Matter in the Time Domain , where his team investigates driven phase transitions and phonon systems with sub-femtosecond temporal resolution. Location: Office Window MF260, Faculty of Physics, Lotharstr. 1-21, 47057 Duisburg Contact: Tel. +49 (203) 379 1439 | Fax +49 (203) 379 1555 His research spans ultrafast electron diffraction of photo-induced phase transitions in atomic wires and topological materials , with recent breakthroughs on Kibble-Zurek dynamics in the Si(001) surface and chiral plasmon polaritons . The group’s 15 most recent publications (2025-2022) address phenomena such as negative thermal expansion in 2D materials , electron-phonon coupling in Pb/Si heterostructures , and quantum pathway analysis in Bismuth films . These works are categorized under disciplines like Condensed Matter Physics , Nanooptics , and Ultrafast Dynamics , with subfields including Ising Model Transitions , Plasmon Focusing , and Time-Resolved Diffraction . Prof. Horn-von Hoegen serves as DFG Liaison Officer for the University of Duisburg-Essen, providing guidance on Deutsche Forschungsgemeinschaft (DFG) proposals . His group has mentored notable researchers including Dr. Simon Sindermann (postdoc at IBM), Dr. Anja Hanisch-Blicharski (Leopoldina Fellow), Dr. Hichem Hattab (Leopoldina Fellowship), and Dr. Marin Petrovic (Humboldt Fellow). The group’s laboratory facilities include advanced ultrafast electron diffraction and photoemission microscopy systems, enabling studies of atomic-scale processes such as molecular dynamics simulations of laser-excited surfaces and domain wall motion in Si(553)-Au systems .

• Surface Physics
• Ultrafast Dynamics
• Electron Diffraction
• +۴ مورد دیگر

Karin Jacobs is a Professor in the Department of Physics at Saarland University, where she leads the research group for soft matter physics within the Faculty of Natural Sciences and Technology. Her work bridges experimental physics and applied materials science, focusing on interfacial phenomena, thin films, and functional materials. Research Interests: Her group investigates the stability of coatings, properties of simple and complex fluids, and the adhesion of biomolecules on surfaces. Using advanced experimental techniques such as atomic force microscopy (AFM), ellipsometry, surface plasmon resonance spectroscopy, optical microscopy, and ultra-high vacuum (UHV) methods like photoelectron spectroscopy, her team probes nanoscale and microscale interactions at solid-liquid and solid-gas interfaces. The research spans fundamental and applied domains, including the synthesis and characterization of graphene and boronitrene, production of water-in-water vesicles using hydrophobins, and bacterial adhesion studies. These investigations are often linked to industrial applications in the paint, semiconductor, and biomedical sectors. Publication Trends: Over the past 15 years, her publications reflect a consistent focus on surface physics and soft matter. Key themes include graphene synthesis via liquid precursor deposition (including unconventional sources like fingerprints), interfacial rheology, biopolymer adsorption, and quantitative imaging analysis. The interdisciplinary nature of her work is evident in the combination of physics, chemistry, and biological interfaces. Scientific Awards: No specific awards are mentioned in the provided text. Advising and Grants: As head of an active research group, Prof. Jacobs supervises graduate students and postdoctoral researchers, though specific names are not listed. Her collaborations with theoretical groups and external institutions (e.g., University of Augsburg) suggest participation in joint grants and funded projects, particularly in nanomaterials and surface science. The applied orientation of her research indicates engagement with industry partners in coatings and semiconductor technologies. Labs and Teams: The Jacobs Group operates a well-equipped experimental laboratory at Campus E2 9, Saarland University, specializing in surface analysis and soft matter characterization. The team includes researchers working on biofilms, microfluidics, and functional materials, supported by technical and administrative staff.

• Soft Matter Physics
• Condensed Matter Physics
• Surface Physics
• +۸ مورد دیگر

Prof. Holger Braunschweig is the Chair of Inorganic Chemistry at the University of Würzburg . His research focuses on organometallic and main-group element chemistry , emphasizing the synthesis and reactivity of novel molecular species with applications in catalysis , organic synthesis , and materials science . Education : PhD and Habilitation at RWTH Aachen (advisor: Prof. P. Paetzold); postdoctoral work at Sussex (Prof. M.F. Lappert); Reader at Imperial College London Key research themes include low-valent main-group compounds (e.g., borylenes, diborenes, beryllium species), small-molecule activation (N 2 , CO 2 , CO), and photophysically active boron heterocycles (boroles, alumoles, azaborinines). His work combines sophisticated synthetic protocols with analytical and computational methods . Recent publications (2025) highlight advances in boron-containing polymers , metal-ligand reactivity , and high-pressure molecular studies . Awards include the 2024 ENI Award , 2024 Frederick Hawthorne Award , and ERC Advanced Grants ('multiBB', 'BORYLENEFUN'). Scientific Awards : Gottfried Wilhelm Leibniz Prize (2009), RSC Main Group Chemistry Award (2014), Reinhart Koselleck Grant (2018), etc. He leads the Institute for Sustainable Chemistry & Catalysis with Boron (ICB) and is affiliated with the Department of Inorganic Chemistry . His group includes senior researchers , postdocs , PhD students , and technicians .

• Organometallic Chemistry
• Main Group Chemistry
• Boron Chemistry
• +۶ مورد دیگر

Prof. Christian Liebscher is a Professor of Advanced Transmission Electron Microscopy at the Ruhr University Bochum , affiliated with the Faculty of Physics and Astronomy and the Research Center Future Energy Materials and Systems (RC FEMS). His work focuses on developing cutting-edge TEM techniques to understand energy-related materials' atomic-scale structure-functionality relationships. He combines aberration-corrected scanning TEM (STEM), 4D-STEM, and in-situ microscopy with machine learning to analyze complex material datasets. Education and Career: 2000–2006: Study of Materials Science at the University of Bayreuth. 2006–2010: PhD at the University of Bayreuth (summa cum laude) with a thesis on phase and dislocation analysis in superalloys. 2011–2014: Postdoc at the University of California, Berkeley, and the National Center for Electron Microscopy (Lawrence Berkeley National Laboratory). 2014–2015: Staff scientist at the University of Duisburg-Essen. 2015–2024: Group leader at the Max Planck Institute for Sustainable Materials in Düsseldorf. Research Interests: Prof. Liebscher’s research bridges microscopy innovation and materials understanding. He emphasizes atomic-scale characterization of interfaces, defects, and grain boundaries in metals and alloys using advanced STEM and 4D-STEM. His work addresses how structural features—like segregation, strain, and phase transitions—impact material properties. He also pioneers machine learning tools to automate data analysis from microscopy and tomography, advancing materials dataspaces. Key topics include energy materials (e.g., PEM fuel cells), high-entropy alloys, and nanomaterials for applications like semiconductors and electromagnetic absorption. Scientific Contributions: His publications highlight trends in grain boundary phase transitions, microstructure-property correlations, and integration of AI into microscopy. For example, recent work explores how grain boundary complexions affect mechanical strength in alloys and how in-situ TEM reveals deformation mechanisms under realistic conditions. He has contributed significantly to methodologies like scanning precession electron diffraction tomography and unsupervised machine learning for atomic-resolution datasets. Labs and Collaborations: Prof. Liebscher leads the Advanced Transmission Electron Microscopy group at RUB, building on his previous leadership at the Max Planck Institute. His lab collaborates with institutions like the Lawrence Berkeley National Laboratory and integrates interdisciplinary approaches combining experimental microscopy with computational modeling.

• Advanced Transmission Electron Microscopy
• Materials Science
• Energy-Related Materials
• +۶ مورد دیگر

J. T. Delitz is a researcher at DESY (Deutsches Elektronen-Synchrotron) in Hamburg, Germany, specializing in synchrotron radiation techniques and beamline instrumentation. They are affiliated with the Photon Science Department at DESY, which operates the PETRA III synchrotron facility. Dr. Delitz's research focuses on X-ray diffraction techniques, particularly powder diffraction at beamline P02.1 at PETRA III. Their work involves developing and optimizing instrumentation for high-resolution and high-energy diffraction experiments, which are essential for materials characterization and structural analysis. They have contributed significantly to advancing synchrotron-based powder diffraction techniques, including applications for electron density distributions and in situ total scattering measurements. Dr. Delitz has published in leading journals such as the Journal of Synchrotron Radiation and Zeitschrift für anorganische und allgemeine Chemie, with research spanning physics, chemistry, and materials science applications of synchrotron radiation. Their work supports a wide range of scientific investigations by providing advanced experimental capabilities at one of the world's premier synchrotron facilities.

• Synchrotron Radiation
• X-ray Diffraction
• Beamline Instrumentation
• +۲ مورد دیگر

Christoph T. Koch is a Professor of Physics at Humboldt-Universität zu Berlin, where he has held the W3 Chair since 2015. Previously, he held a similar position at Ulm University (2011–2015), supported by the Carl Zeiss Foundation. His research focuses on advanced electron microscopy techniques, including quantitative transmission electron microscopy (TEM), electron holography, and strain mapping. He leads the AG Strukturforschung/Elektronenmikroskopie group, advancing materials science through innovations in imaging and spectroscopy. Education: B.Sc./M.Sc. in Physics at Heidelberg University (1996–1998), followed by an exchange at Arizona State University (1997–1998). PhD in Physics from Arizona State University (2002, advisor: Prof. John C.H. Spence). Postdoctoral research at the Max Planck Institute for Metals Research, Stuttgart (2002–2011). Research interests include: Electron diffraction and phase retrieval Nanometer-scale strain and defect analysis Electron energy-loss spectroscopy (EELS) for plasmonics and bandgap mapping Development of FAIR data infrastructure for materials science Leadership: Managed the Department of Physics at Humboldt University (2020–2024). Collaborates widely, with key co-authors including P.A. van Aken, W. Sigle, and C. Felser. His work bridges experimental microscopy and computational modeling, addressing challenges in semiconductors, ceramics, and 2D materials. Notable contributions include pioneering methods for 3D reconstruction via electron ptychography, dynamic electron diffraction analysis, and strain mapping in advanced CMOS technologies. Current efforts emphasize real-time imaging and AI-driven data analysis in materials research.

• Electron Microscopy
• Materials Science
• Condensed Matter Physics
• +۳ مورد دیگر

Dr. Bastian Pfau serves as Department Head of the “Imaging and Coherent X-rays” (B2) division and Project Coordinator for “Transient Structures and Imaging with X-rays” at the Max Born Institute in Berlin, where he has conducted postdoctoral research since 2016. His work pioneers nanoscale magnetic imaging using coherent X-ray techniques, with significant contributions to ultrafast magnetization dynamics and topological spin structures. His academic foundation includes a Dr. rer. nat. (PhD) in Physics from Technical University Berlin (2013) with thesis “Imaging magnetic nanostructures using soft x-ray Fourier transform holography,” and a Diplom (MSc) in Physics from Technical University Dresden (2006) focused on “Combining photon correlation spectroscopy and fluctuation analysis for investigating diffusion dynamics.” Additional research experience spans Lund University (2014-2015), Technical University Berlin (2010-2013), and Helmholtz Center Berlin (2006-2010). Dr. Pfau’s research centers on developing and applying X-ray holography and coherent diffraction imaging to visualize magnetic nanostructures at nanometer-femtosecond scales. His group specializes in ultrafast magnetization dynamics , skyrmion imaging , and element-specific magnetic probing using soft X-rays. Key innovations include achieving 5 nm resolution magnetic imaging and demonstrating all-optical helicity-independent switching via plasmonic nanostructures, with applications in next-generation spintronic devices and magnetic storage technologies. Analysis of his 15 most recent publications reveals dominant themes in nanoscale magnetic imaging (particularly skyrmions and topological textures), ultrafast opto-magnetic effects using extreme ultraviolet radiation, and advanced X-ray methodologies for capturing transient magnetic states. His work consistently bridges fundamental physics with practical instrumentation development, as evidenced by contributions to laser-driven plasma sources and tabletop X-ray setups. As Department Head of B2, Dr. Pfau leads a multidisciplinary team operating cutting-edge X-ray microscopy facilities at MBI. The group maintains strong collaborations with international synchrotron facilities (including BESSY II) and free-electron laser centers, focusing on developing MHz-repetition-rate pump-probe capabilities and high-resolution magnetic imaging techniques. Current projects emphasize real-time visualization of light-induced phase transitions and magnetic switching phenomena in functional materials.

• X-ray Holography
• Magnetic Imaging
• Ultrafast Dynamics
• +۵ مورد دیگر

Mikel Sanz is a Ramón y Cajal Researcher and Ikerbasque Fellow at the University of the Basque Country (UPV/EHU) in Bilbao, Spain. His research focuses on quantum computing, quantum algorithms, quantum technologies, and quantum metrology. His research interests include: Quantum Computing and Quantum Algorithms Quantum Metrology and Quantum Sensing Digital-Analog Quantum Computing Quantum Machine Learning Quantum Simulation Quantum Error Correction and Mitigation Dr. Sanz's recent publications demonstrate a strong focus on practical applications of quantum computing across various domains. His work spans quantum hardware design, quantum algorithm development, quantum machine learning applications, and quantum metrology techniques. He has made significant contributions to digital-analog quantum computing approaches, quantum kernel methods, and quantum-enhanced sensing technologies. His scientific awards include being selected as a Ramón y Cajal Researcher, a prestigious research position in Spain for experienced researchers, and an Ikerbasque Fellow, which is awarded by the Basque Foundation for Science to attract top researchers to the Basque Country. Dr. Sanz has collaborated extensively with researchers across multiple institutions, contributing to a wide range of quantum information science projects. His work often bridges theoretical quantum information concepts with practical implementations, particularly in superconducting quantum computing platforms. He is actively involved in advancing quantum technologies through his research group at UPV/EHU, focusing on developing novel quantum algorithms and exploring applications of quantum computing in various scientific and industrial domains.

• Quantum Computing
• Quantum Algorithms
• Quantum Technologies
• +۵ مورد دیگر

Dr. Axel Lubk is a Group Leader at the Institute for Solid State Research (IFW Dresden) , specializing in advanced electron microscopy techniques for materials science. His research spans four key areas: (1) TEM method development (high-resolution imaging, tomography, holography, and in-situ techniques), (2) charge particle optics and scattering theory , (3) magnetic nanotextures (domain walls, skyrmions), and (4) plasmonics (mode hybridization in heterogeneous structures and semiconductor heterostructures). Dr. Lubk’s work focuses on three-dimensional magnetic texture analysis using electron holography and tomography, particularly in systems like skyrmion tubes , FeGe , and Cr2O3 thin films . He has pioneered techniques for vector-field electron tomography and phase retrieval under varying boundary conditions, advancing nanoscale magnetic imaging. His recent studies include plasmonic properties in AgAu nanosphere chains , thermoelectric multilayer systems , and topological insulators like NiRh2Sb and TaTMTe4 . Dr. Lubk has published extensively in high-impact journals such as Nature Communications and Advanced Materials , with a focus on TEM instrumentation and quantitative analysis . He frequently presents at international conferences like the International Microscopy Congress and European School of Magnetism , emphasizing applications in spintronics , quantum materials , and nanostructured systems . His contributions to holographic vector-field electron tomography and machine learning for spectrum-image data have set new standards in electron microscopy.

• Transmission Electron Microscopy (TEM) Method Development
• Charge Particle Optics and Scattering Theory
• Magnetic Nanotextures
• +۳ مورد دیگر

Prof. Bettina Valeska Lotsch serves as Director of the Nanochemistry Department at the Max Planck Institute for Solid State Research in Stuttgart and holds honorary professorships at both the University of Stuttgart and Ludwig-Maximilians-Universität München (LMU). She leads a research group focused on the rational synthesis of multifunctional materials with engineered properties, combining solid-state chemistry, molecular chemistry, and nanochemistry approaches. Her research interests span nanochemistry, solid-state chemistry, materials science, energy storage, catalysis, photocatalysis, and the development of two-dimensional materials, porous frameworks, and photonic nanostructures. She investigates structure-property-activity relationships in functional materials with applications in sensing, catalysis, and photo- and electrochemical energy conversion and storage. Her group employs diffraction, spectroscopic, and microscopic techniques to explore these materials. Prof. Lotsch's publication record demonstrates significant contributions to materials chemistry, with over 330 papers, 27,577 citations, and an h-index of 83 (as of February 2025). Her recent work focuses on integrated solar batteries, covalent organic frameworks, metal-organic frameworks, and novel materials for energy applications. The research shows strong emphasis on materials for renewable energy technologies, particularly in the areas of photocatalysis, energy storage, and photoelectrochemical systems. Gottfried Wilhelm Leibniz-Preis (2025) Highly Cited Researcher, Web of Science (2023-2024) Materials Lectureship Award, University of Warwick (2023) ERC Starting Grant (2014) EU-40 Materials Prize, European Materials Research Society (2017) Elected Member of the Heidelberger Akademie der Wissenschaften (2021) Prof. Lotsch leads the SOLBAT initiative funded by the Max Planck Foundation, which focuses on pioneering work in solar batteries and optoionics. She serves on multiple advisory boards including Quantum BW, SFB 1452 CLINT, and the Scientific Advisory Board of ICMol at the University of Valencia. Her department provides extensive research infrastructure including advanced characterization techniques for materials analysis.

• Nanochemistry
• Solid-State Chemistry
• Materials Science
• +۹ مورد دیگر

Uwe Klemradt is a Professor in the Department of Physics at RWTH Aachen University. His research focuses on experimental condensed matter physics, with a strong emphasis on advanced characterization techniques such as X-ray scattering and in situ studies of thin film growth. Key areas include ferroelectric materials, phase transitions, and nanotechnology. His work often involves the exploration of material properties at surfaces and interfaces, leveraging synchrotron radiation and laboratory-based light sources. Recent studies include investigations into the crystallization dynamics of BaTiO3 thin films, resistive switching in oxide films, and the structural evolution of heterostructures. Notable contributions span thin film deposition methods, such as RF sputtering, and the analysis of material behavior under external fields (e.g., magnetic field-induced ferroelectricity). His research bridges fundamental physics with applications in electronics and nanotechnology. No scientific awards are explicitly listed. His advising and grant activities are not detailed in the provided texts. The Department of Physics at RWTH Aachen University serves as his primary affiliation, with access to advanced experimental facilities.

• Condensed Matter Physics
• Materials Science
• X-ray Scattering Techniques
• +۴ مورد دیگر

Professor Markus Braden is a distinguished faculty member at the University of Cologne's Institute of Physics, where he leads the X-ray and Neutron Scattering Group. His research focuses on understanding the structural and magnetic properties of complex materials using advanced scattering techniques, with particular emphasis on strongly correlated electron systems and quantum materials. Braden's research interests span condensed matter physics, with special focus on unconventional superconductors, materials exhibiting strong spin-orbit coupling, and multiferroic compounds. His group employs both X-ray and neutron scattering methods to investigate crystal structures and excitation spectra in transition metal compounds, particularly those with 4d and 5d elements like ruthenates and iridates. The group has made significant contributions to understanding the magnetic interactions in α-RuCl3 as a candidate for Kitaev physics, the magnetic properties of Sr2RuO4 as a potential unconventional superconductor, and the complex behavior of multiferroic materials where magnetic order couples with ferroelectric polarization. Recent publications reveal Braden's leadership in polarized neutron scattering techniques, particularly in studying magnetic excitations with chiral properties and directional dependencies. His work on ruthenates has demonstrated how spin-orbit coupling creates highly anisotropic magnetic interactions, while research on multiferroics has revealed novel domain dynamics and electric field control mechanisms. The group frequently collaborates with international neutron facilities including MLZ in Garching and ILL in Grenoble. Braden supervises multiple PhD students and postdoctoral researchers, fostering expertise in neutron and X-ray techniques. His laboratory utilizes advanced instrumentation including the KOMPASS spectrometer, a cold triple-axis neutron spectrometer optimized for polarization analysis developed in collaboration with Prof. Böni's group, as well as X-ray diffractometers and crystal growth facilities for sample preparation.

• Neutron scattering
• X-ray diffraction
• Strongly correlated electron systems
• +۶ مورد دیگر

Óscar Andrey Herrera Sancho is a Full Professor at the University of Costa Rica and a researcher at the Atomic, Nuclear and Molecular Sciences Research Center. He holds a PhD in Physics from Leibniz University Hannover and has held roles including Head of the Physical Metrology Department at the National Metrology Institute of Costa Rica. His research spans Quantum Optics, Quantum Biology, Surface Physics, and Educational Physics, with interdisciplinary work in art conservation, biophysics, and cultural heritage science. Education: Postdoc Fellowship, Institute for Quantum Optics and Quantum Information, University of Innsbruck (2016) PhD in Physics, Leibniz University Hannover (2012) M.Sc. in Physics, University of Costa Rica (2008) B.Sc. in Physics, University of Costa Rica (2003) Research Interests: His work bridges quantum physics with cultural heritage preservation, including material analysis of historical artifacts, fungal biodeterioration studies, and pedagogical innovations linking literature and science. He also investigates surface physics phenomena relevant to astrophysical ice transitions and quantum gas systems. Scientific Awards: Alexander von Humboldt Foundation Fellow Advising & Grants: While specific grants are not listed, his extensive co-authorship network and leadership roles indicate active collaboration in interdisciplinary research. His work on cultural heritage has involved student teams in material analysis and software development for artifact preservation. Labs & Teams: Leads the Spatially Resolved Ultracold Rydberg Physics group at the 5th Institute of Physics, focusing on quantum systems and their applications in precision measurement and cultural heritage science.

• Quantum Optics
• Quantum Biology
• Quantum Metrology
• +۷ مورد دیگر

Prof. Thomas Fennel is a faculty member at the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, leading the department A1: Strong Field Processes at Extreme Wavelengths. His research focuses on ultrafast phenomena in strong-field physics, nanoplasma dynamics, and quantum coherent imaging. He has pioneered work on attosecond electron emission, laser-driven nanoplasma expansion, and light-induced dynamics in nanoscale systems. His educational background includes advanced studies in physics and optics, though specific degrees are not detailed here. His lab specializes in experimental and theoretical investigations of extreme light-matter interactions, particularly at the nanoscale. Key techniques include time-resolved spectroscopy, diffraction imaging, and ultrafast laser systems. Recent publications explore topics like subcycle metallization of nanoparticles, attosecond electron emission from metal tips, and quantum coherence in nanostructures. These contributions highlight his leadership in advancing ultrafast science and nanoscale optics. No awards are explicitly mentioned, though his prolific publication record indicates significant contributions to the field. He collaborates extensively with international teams on projects involving femtosecond imaging, plasma dynamics, and strong-field ionization. His work bridges fundamental physics with applications in nanotechnology and quantum photonics, positioning him as a key figure in modern ultrafast science.

• Strong-Field Physics
• Ultrafast Processes
• Nanoplasma Dynamics
• +۳ مورد دیگر