Results 71 to 80 of about 111,516 (212)

Optimization Based Evaluation of Grating Interferometric Phase Stepping Series and Analysis of Mechanical Setup Instabilities

Journal of Imaging, 2018
The diffraction contrast modalities accessible by X-ray grating interferometers are not imaged directly but have to be inferred from sine-like signal variations occurring in a series of images acquired at varying relative positions of the interferometer ...
Jonas Dittmann, Andreas Balles, Simon Zabler   +2 more
doaj   +1 more source

Progress toward a large-scale ion Talbot-Lau interferometer

, 2017
International audienceThe Talbot-Lau interferometer is a proven tool to perform measurements in the near-field regime. It has been extensively used for investigating the wave nature of electrons, atoms, and complex organic molecules.
Oberthaler, Markus K., Andrea Demetrio, Müller, Simon R., Simon R. Müller, Lansonneur, Pierre, Markus K. Oberthaler, Pierre Lansonneur, Demetrio, Andrea   +7 more
core   +1 more source

Deformable image registration of dark‐field chest radiographs for functional lung assessment

Medical Physics, Volume 52, Issue 8, August 2025.
Abstract Background Dark‐field radiography of the human chest has been demonstrated to have promising potential for the analysis of the lung microstructure and the diagnosis of respiratory diseases. However, most previous studies of dark‐field chest radiographs evaluated the lung signal only in the inspiratory breathing state.
Fabian Drexel, Vasiliki Sideri‐Lampretsa, Henriette Bast, Alexander W. Marka, Thomas Koehler, Florian T. Gassert, Daniela Pfeiffer, Daniel Rueckert, Franz Pfeiffer   +8 more
wiley   +1 more source

Isotope-selective high-order interferometry with large organic molecules in free fall

New Journal of Physics, 2018
Interferometry in the time domain has proven valuable for matter-wave based measurements. This concept has recently been generalized to cold molecular clusters using short-pulse standing light waves which realized photo-depletion gratings, arranged in a ...
Jonas Rodewald, Nadine Dörre, Andrea Grimaldi, Philipp Geyer, Lukas Felix, Marcel Mayor, Armin Shayeghi, Markus Arndt   +7 more
doaj   +1 more source

Temporal and spatiotemporal soliton molecules in ultrafast fibre lasers

Nanophotonics, Volume 14, Issue 6, Page 677-706, April 2025.
Abstract Ultrafast fibre lasers, characterized by ultrashort pulse duration and broad spectral bandwidth, have drawn significant attention due to their vast potential across a wide range of applications, from fundamental scientific to industrial processing and beyond.
Ding Mao, Zichuan Yuan, Ke Dai, Yue Chen, Huihui Ma, Qiang Ling, Jiancheng Zheng, Yusheng Zhang, Daru Chen, Yudong Cui, Zhipei Sun, Boris A. Malomed   +11 more
wiley   +1 more source

Thermal deformation compensation scheme to the sub‐nanometre level of a piezoelectric offset mirror for MHz repetition rate free‐electron laser

Journal of Synchrotron Radiation, Volume 32, Issue 1, Page 46-56, January 2025.
A compensation scheme has been developed to control thermal deformation of offset mirrors used in MHz repetition rate free‐electron lasers to sub‐nanometre level. This approach employs a piezoelectric deformable mirror, utilizes finite‐element analysis for simulation and post‐processing verification, and integrates a differential evolution algorithm ...
Baoning Sun, Qinming Li, Chuan Yang, Kai Hu, Zhongmin Xu, Xiaohao Dong, Weiqing Zhang, Xueming Yang   +7 more
wiley   +1 more source

Carol Talbot Gaddy Graywing collection, 1972-1988

, 1972
This collection contains the personal and professional papers collected during the 1970s and mid-1980s by Little Rock social activist and feminist Carol Talbot Gaddy Graywing.
Graywing, Carol Talbot Gaddy, 1940-
core  

Bio‐Engineering Yeast Cells Biolenses by Reshaping Intracellular Vacuoles

Advanced Optical Materials, Volume 12, Issue 18, June 26, 2024.
Achieving tunable biolens effects in single cells by altering their internal structures is feasible. Particularly, hypotonic conditions prompt reshaping of intracellular vacuoles in yeast cells. Utilizing Tomographic Phase Imaging Flow Cytometry, 3D refractive index tomograms of suspended cells are captured, thus enabling in‐depth characterizations ...
Daniele Pirone, Massimo D'Agostino, Matteo Lombini, Fausto Cortecchia, Emiliano Diolaiti, Giuseppe Mongelluzzo, Giusy Giugliano, Vittorio Bianco, Lisa Miccio, Pasquale Memmolo, Pietro Ferraro   +10 more
wiley   +1 more source

Correction for Mechanical Inaccuracies in a Scanning Talbot-Lau Interferometer [PDF]

, 2023
Wolfgang Noichl, Fabio De Marco, Konstantin Willer, Theresa Urban, Manuela Frank, Rafael C. Schick, Bernhard Gleich, Lorenz Hehn, Alex Gustschin, Pascal Meyer, Thomas Koehler, Ingo Maack, Klaus-Jürgen Engel, Bernd Lundt, Bernhard C. Renger, Alexander A. Fingerle, Daniela Pfeiffer, Ernst J. Rummeny, Julia Herzen, Franz Pfeiffer   +19 more
openalex   +1 more source

A Multicompartment Assessment of Microplastic Contamination in Semi‐remote Boreal Lakes

Environmental Toxicology and Chemistry, Volume 43, Issue 5, Page 999-1011, May 2024.
Abstract Microplastic contamination is ubiquitous across the globe, even in remote locations. Still, the sources and pathways of microplastics to such locations are largely unknown. To investigate microplastic contamination in a semi‐remote location, we measured microplastic concentrations in nine oligotrophic lakes within and around the International ...
Hayley K. McIlwraith, Minoli Dias, Diane M. Orihel, Michael D. Rennie, Anna L. Harrison, Matthew J. Hoffman, Jennifer F. Provencher, Chelsea M. Rochman   +7 more
wiley   +1 more source