Article
Chemistry, Physical
Michael A. Hope, Snaedis Bjorgvinsdottir, Clare P. Grey, Lyndon Emsley
Summary: The raser effect is achieved through solid effect dynamic nuclear polarization, allowing exceptionally narrow NMR line widths to be recorded, limited only by the magnetic field stability. The reversible activation and deactivation of the raser effect can be modulated by magic angle spinning, adjusting the coherence lifetime of nuclear spins.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Gastroenterology & Hepatology
Edward Kim, Alex Sher, Ghadi Abboud, Myron Schwartz, Marcelo Facciuto, Parissa Tabrizian, Karin Knesaurek, Aaron Fischman, Rahul Patel, Scott Nowakowski, Josep Llovet, Bachir Taouli, Robert Lookstein
Summary: Radiation segmentectomy is a safe and effective treatment option for unresectable hepatocellular carcinoma with suboptimal location for ablation, with a low proportion of high-grade adverse events. Further investigation is warranted to explore its potential as a curative treatment option.
LANCET GASTROENTEROLOGY & HEPATOLOGY
(2022)
Article
Multidisciplinary Sciences
Soeren Lehmkuhl, Simon Fleischer, Lars Lohmann, Matthew S. Rosen, Eduard Y. Chekmenev, Alina Ada, Thomas Theis, Stephan Appelt
Summary: This study demonstrates a different contrast mechanism in MRI by establishing RASER in imaged media. RASER can generate stronger image contrast than conventional MRI by utilizing small local differences in initial population inversion density.
Article
Engineering, Mechanical
C. A. Geweth, S. K. Baydoun, F. Saati, K. Sepahvand, S. Marburg
Summary: This study investigates the influence of boundary conditions on experimentally obtained damping values for a solid plate made of aluminium alloy. Results show that the damping values are more sensitive to the applied boundary conditions, and the lowest damping values are obtained when the structure is suspended at the nodal lines of the corresponding mode. Additionally, comparison with numerically obtained values suggests that at higher frequencies, the overall damping of the plate is more affected by energy dissipation due to sound radiation.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Chemistry, Physical
Jing Yang, Peng Wang, Jan G. Korvink, Juergen J. Brandner, Soeren Lehmkuhl
Summary: A method to control the operation of a RASER at a magnetic field of 1.45 T is introduced, using a continuous-flow RASER pumped by PHIP. The system demonstrates five RASER phenomena and matches with simulations based on a theoretical model of two nonlinear-coupled RASER modes.
Article
Chemistry, Physical
Yanhe Yang, Hao Xie, Jian You, Weixiang Ye
Summary: In this study, gold nanorods were used as the model system to investigate the radiation damping properties of noble metal nanoparticles. Theoretical and experimental methods were employed, and it was found that radiation damping of the nanorods can be accurately described by a simple analytical equation. This research provides insights for designing and optimizing gold nanostructures with higher optical signal and better sensing performance.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
J. Goeken, N. Saba, I. Anzel
Summary: Wood is a main component of the forest ecosystem and a versatile raw material with enormous potential for application. It has unique acoustic properties and is gaining increasing social acceptance as an environmentally friendly material. Research into the acoustic properties of wood is crucial for establishing it as an alternative substitute material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
J. Goeken, N. Saba, I Anzel
Summary: Wood is a versatile raw material with enormous potential for application, widely used in construction material and energy source. It has unique acoustic properties and environmentally friendly attributes, gaining increasing social acceptance in manufacturing and transportation fields. However, further research on its acoustic properties is essential for its establishment as an alternative substitute material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Qinglin Liu, Yali Wang, Panxu Sun, Dongwei Wang
Summary: This study analyzed the transient and steady responses of a single degree of freedom system based on viscous damping and hysteretic damping models. The results showed that the dynamic responses based on the two damping models were approximately equal in small damping cases, but the difference between the two models gradually increased with the increase in damping ratio.
APPLIED SCIENCES-BASEL
(2022)
Article
Acoustics
Panxu Sun, Dongwei Wang
Summary: The half-power bandwidth method for calculating structural damping parameters using frequency response functions (FRFs) is proposed in this note. The method is applied to displacement FRFs, velocity FRFs, and acceleration FRFs based on viscous and hysteretic damping models. The results show that the method has limited application conditions for displacement and acceleration FRFs but can be widely used for velocity FRFs, making it the preferred choice for calculating damping parameters.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Polymer Science
Guojiang Liao, Wenzheng Zhang, Qingna Zeng, Xiangfeng Peng, Wanjun Wu, Shuai Liu, Bin Lan, Yixiong Zhang
Summary: Magnetorheological elastomer (MRE), a type of smart material, can have its mechanical properties controlled quickly and reversibly by an external magnetic field. This study investigated the influence of gamma radiation on the damping property of MRE. It was found that gamma radiation does not affect the variation trend of the loss factor of MRE with increasing strain amplitude or magnetic flux density, but it does affect the variation trend of the maximum change of the loss factor induced by strain or magnetic field.
Article
Environmental Sciences
Menglin Bao, Ji-Sook Park, Hailong Wu, Hyuk Je Lee, Sang Rul Park, Tae-Hoon Kim, Young Baek Son, Tae Hee Lee, Charles Yarish, Jang K. Kim
Summary: Large-scale Sargassum blooms, particularly the Sargassum horneri (Turner) C. Agardh blooms, have been causing serious problems in coastal areas. The attached populations showed higher biomass accumulation under high nutrients and low PAR, while nutrient limitation and high PAR may accelerate senescence of the pelagic populations.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Wooyoung Shin, Min-seung Ko, Hyun-Keun Ku, Jiyoung Song, Kyeon Hur
Summary: This paper presents a method for accurately estimating the structural mechanical damping in sub-synchronous torsional interaction (SSTI) analysis. The proposed method is based on the Rayleigh and Caughey damping models applied to a multi-mass model, and comprehensive studies show its accuracy and efficacy. The theoretical aspects and applicability of the two damping models for SSTI analysis are also discussed.
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Chin-Long Lee, Theodore L. Chang, Athol J. Carr
Summary: This study proposes a new assembly method to address the problems associated with the conventional assembly method, and showcases its performance through examples.
COMPUTERS & STRUCTURES
(2023)
Article
Engineering, Civil
F. J. Pinto, C. Ledezma, R. Astroza, J. A. Abell Mena
Summary: The study explores the modeling of structural damping and its effect on structural response due to elastic-wave excitation into the surrounding soil domain. Results indicate that up to 1% of apparent, low-amplitude damping can be attributed to radiation damping, depending on the number of stories and depth of embedment.
JOURNAL OF EARTHQUAKE ENGINEERING
(2022)
Article
Chemistry, Organic
Soren S. Donau, Matthias Bechmann, Norbert Mueller, Thorbjorn T. Nielsen, Reinhard Wimmer
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2017)
Article
Chemistry, Physical
Stephan J. Ginthoer, Kousik Chandra, Matthias Bechmann, Victor V. Rodin, Norbert Mueller
Article
Biochemical Research Methods
Petr Rathner, Michael Stadlbauer, Christoph Romanin, Marc Fahrner, Isabella Derler, Norbert Mueller
PROTEIN EXPRESSION AND PURIFICATION
(2018)
Article
Multidisciplinary Sciences
Marc Fahrner, Michael Stadlbauer, Martin Muik, Petr Rathner, Peter Stathopulos, Mitsu Ikura, Norbert Mueller, Christoph Romanin
NATURE COMMUNICATIONS
(2018)
Article
Chemistry, Applied
Erika Ponzini, Antonino Natalello, Fabrizio Usai, Matthias Bechmann, Francesco Peri, Norbert Mueller, Rita Grandori
CARBOHYDRATE POLYMERS
(2019)
Article
Chemistry, Multidisciplinary
Maria Braeuer, Maria Theresia Zich, Kamil Oender, Norbert Mueller
MONATSHEFTE FUR CHEMIE
(2019)
Article
Biochemistry & Molecular Biology
Petr Rathner, Marc Fahrner, Linda Cerofolini, Herwig Grabmayr, Ferdinand Horvath, Heinrich Krobath, Agrim Gupta, Enrico Ravera, Marco Fragai, Matthias Bechmann, Thomas Renger, Claudio Luchinat, Christoph Romanin, Norbert Mueller
Summary: The calcium release activated calcium channel is activated by the endoplasmic reticulum-resident calcium sensor protein STIM1, with interhelical interactions within the CC1 domain playing a key role in controlling STIM1 activation.
NATURE CHEMICAL BIOLOGY
(2021)
Article
Dermatology
Adriana Rathner, Petr Rathner, Andreas Friedrich, Michael Wiessner, Christian Manuel Kitzler, Jan Schernthaner, Thomas Karl, Jan Krauss, Friedrich Lottspeich, Werner Mewes, Helmut Hintner, Johann W. Bauer, Michael Breitenbach, Norbert Mueller, Hannelore Breitenbach-Koller, Jorg von Hagen
Summary: Atazanavir and artesunate have been identified as candidate compounds binding to ribosomal protein rpL35 and may potentially be used to increase production of full-length Lamb3 protein from LAMB3PTC mRNA for targeted systemic therapy in treating gs-JEB.
SKIN PHARMACOLOGY AND PHYSIOLOGY
(2021)
Article
Biophysics
Libor Hejduk, Petr Rathner, Martin Strnad, Libor Grubhoffer, Jan Sterba, Ryan O. M. Rego, Norbert Mueller, Adriana Rathner
Summary: In this study, the interaction of various European Borrelia spirochetes and their Dbp proteins was investigated using NMR, with a focus on B. afzelii DbpA. By predicting secondary structure propensity and analyzing backbone dynamics, structural differences of B. afzelii DbpA compared to other species were identified and will be further explored to understand their impact on host interactions.
BIOMOLECULAR NMR ASSIGNMENTS
(2021)
Article
Biophysics
Agrim Gupta, Christian Manuel Kitzler, Petr Rathner, Marc Fahrner, Herwig Grabmayr, Adriana Rathner, Christoph Romanin, Norbert Muller
Summary: The protein STIM1 is crucial for store-operated calcium entry and changes from an inactive to an active form in response to calcium depletion. Studies of STIM1's CC3 domain are important for understanding its role in stabilizing the inactive form and activating the ORAI calcium channel.
BIOMOLECULAR NMR ASSIGNMENTS
(2021)
Article
Biochemistry & Molecular Biology
Thilini H. Gamage, Herwig Grabmayr, Ferdinand Horvath, Marc Fahrner, Doriana Misceo, William Edward Louch, Gjermund Gunnes, Helen Pullisaar, Janne Elin Reseland, Staale Petter Lyngstadaas, Asbjorn Holmgren, Silja S. Amundsen, Petr Rathner, Linda Cerofolini, Enrico Ravera, Heinrich Krobath, Claudio Luchinat, Thomas Renger, Norbert Mueller, Christoph Romanin, Eirik Frengen
Summary: Stormorken syndrome is a multiorgan hereditary disease caused by dysfunction of the endoplasmic reticulum Ca2+ sensor protein STIM1. The R304W mutation in STIM1, which destabilizes and extends its C terminus, leads to constitutive binding to Orai1 and activation of CRAC channel.
Article
Nanoscience & Nanotechnology
Zuzana Gajarska, Karl Christian Zelenka, Petr Rathner, Dominik Recktenwald, Jan Philipp Kollender, Khurram Shahzad, Norbert Mueller, Achim Walter Hassel, Cezarina Cela Mardare
ACS APPLIED BIO MATERIALS
(2019)
Article
Biochemistry & Molecular Biology
Kathrin Volk, Sven D. Breunig, Raphaela Rid, Julia Herzog, Maria Braeuer, Harald Hundsberger, Christian Klein, Norbert Mueller, Kamil Oender
BIOLOGICAL CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Lukas Traxler, Petr Rathner, Marc Fahrner, Michael Stadlbauer, Felix Faschinger, Tatsiana Charnavets, Norbert Mueller, Christoph Romanin, Peter Hinterdorfer, Hermann J. Gruber
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2017)