Results 61 to 70 of about 564,176 (286)

Observation and Control of Laser-Enabled Auger Decay

, 2017
Single photon laser enabled Auger decay (spLEAD) has been redicted theoretically [Phys. Rev. Lett. 111, 083004 (2013)] and here we report its first experimental observation in neon. Using coherent, bichromatic free-electron laser pulses, we have detected
Ahmadi, H., Allaria, E., Callegari, C., Carpeggiani, P., Comby, A., Csizmadia, T., Ferrari, E., Finetti, P., Fischer, A., Gauthier, D., Giannessi, L., Iablonskyi, D., Ishikawa, Kenichi L., Kheifets, A. S., Kuehn, S., Mazza, T., Meyer, M., Ovcharenko, E., Plekan, O., Prince, K. C., Reduzzi, M., Roussel, E., Sansone, G., Ueda, K.   +23 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Novel correction procedure for compensating thermal contraction errors in the measurement of the magnetic field of superconducting undulator coils in a liquid helium cryostat

Journal of Synchrotron Radiation
Superconducting undulators (SCUs) can offer a much higher on-axis undulator field than state-of-the-art cryogenic permanent-magnet undulators with the same period and vacuum gap.
Barbara Marchetti, Johann Baader, Sara Casalbuoni, Grigory Yakopov, Mikhail Yakopov   +4 more
doaj   +1 more source

Room-temperature macromolecular serial crystallography using synchrotron radiation

IUCrJ, 2014
A new approach for collecting data from many hundreds of thousands of microcrystals using X-ray pulses from a free-electron laser has recently been developed.
Francesco Stellato, Dominik Oberthür, Mengning Liang, Richard Bean, Cornelius Gati, Oleksandr Yefanov, Anton Barty, Anja Burkhardt, Pontus Fischer, Lorenzo Galli, Richard A. Kirian, Jan Meyer, Saravanan Panneerselvam, Chun Hong Yoon, Fedor Chervinskii, Emily Speller, Thomas A. White, Christian Betzel, Alke Meents, Henry N. Chapman   +19 more
doaj   +1 more source

Real-time observation of a correlation-driven sub 3 fs charge migration in ionised adenine

Communications Chemistry, 2021
Sudden ionisation of larger molecules can initiate a correlation-driven process called charge migration, but due to its short time scale this process is challenging to observe.
Erik P. Månsson, Simone Latini, Fabio Covito, Vincent Wanie, Mara Galli, Enrico Perfetto, Gianluca Stefanucci, Hannes Hübener, Umberto De Giovannini, Mattea C. Castrovilli, Andrea Trabattoni, Fabio Frassetto, Luca Poletto, Jason B. Greenwood, François Légaré, Mauro Nisoli, Angel Rubio, Francesca Calegari   +17 more
doaj   +1 more source

Optimizing Post Friction Stir Welding Heat Treatment in Dissimilar Friction Stir Welded 6061/AlSi10MgMn Joints for Electrical Vehicle Battery Housing

Advanced Engineering Materials, EarlyView.
Microstructural evolution and hardness optimization along the cross‐section of friction stir welded AA6061/AlSi10MgMn joints, for electric vehicle battery housings, were investigated. Postweld aging between 170°C and 220°C enhances hardness uniformity within the nugget zone.
Emanuele Ghio, Emanuela Cerri
wiley   +1 more source

Resolving molecular diffusion and aggregation of antibody proteins with megahertz X-ray free-electron laser pulses

Nature Communications, 2022
The European X-ray FreeElectron Laser Facility generates ultrashort hard X-ray pulses with megahertz repetition rate. Here, the authors probe the dynamics of dense antibody protein (Ig-PEG) solutions using megahertz X-ray photon correlation spectroscopy ...
Mario Reiser, Anita Girelli, Anastasia Ragulskaya, Sudipta Das, Sharon Berkowicz, Maddalena Bin, Marjorie Ladd-Parada, Mariia Filianina, Hanna-Friederike Poggemann, Nafisa Begam, Mohammad Sayed Akhundzadeh, Sonja Timmermann, Lisa Randolph, Yuriy Chushkin, Tilo Seydel, Ulrike Boesenberg, Jörg Hallmann, Johannes Möller, Angel Rodriguez-Fernandez, Robert Rosca, Robert Schaffer, Markus Scholz, Roman Shayduk, Alexey Zozulya, Anders Madsen, Frank Schreiber, Fajun Zhang, Fivos Perakis, Christian Gutt   +28 more
doaj   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Analysis of XFEL serial diffraction data from individual crystalline fibrils

IUCrJ, 2017
Serial diffraction data collected at the Linac Coherent Light Source from crystalline amyloid fibrils delivered in a liquid jet show that the fibrils are well oriented in the jet.
David H. Wojtas, Kartik Ayyer, Mengning Liang, Estelle Mossou, Filippo Romoli, Carolin Seuring, Kenneth R. Beyerlein, Richard J. Bean, Andrew J. Morgan, Dominik Oberthuer, Holger Fleckenstein, Michael Heymann, Cornelius Gati, Oleksandr Yefanov, Miriam Barthelmess, Eirini Ornithopoulou, Lorenzo Galli, P. Lourdu Xavier, Wai Li Ling, Matthias Frank, Chun Hong Yoon, Thomas A. White, Saša Bajt, Anna Mitraki, Sebastien Boutet, Andrew Aquila, Anton Barty, V. Trevor Forsyth, Henry N. Chapman, Rick P. Millane   +29 more
doaj   +1 more source