Results 41 to 50 of about 882,775 (293)

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Electron beam welder X-rays its own welds [PDF]

, 1967
Beam of an electron beam welder X rays its own welds, enabling rapid weld quality checks to be made without removing the work from the vacuum chamber. A tungsten target produces X rays when hit by the beam.
Roden, W. A.
core   +1 more source

Beam Orientation Optimization for Intensity Modulated Radiation Therapy using Adaptive l1 Minimization

, 2011
Beam orientation optimization (BOO) is a key component in the process of IMRT treatment planning. It determines to what degree one can achieve a good treatment plan quality in the subsequent plan optimization process.
Bortfeld T, Bortfeld T, Chartrand R Sidky E Y Xiaochuan P, Chunhua Men, Djajaputra D, Fung G M, Haas O C L, Li Y J, Meedt G, Men C, Schreibmann E, Steve B Jiang, Woudstra E, Xun Jia, Yifei Lou, Zhu L   +15 more
core   +1 more source

Overview of Plasma Lens Experiments and Recent Results at SPARC_LAB [PDF]

, 2018
Beam injection and extraction from a plasma module is still one of the crucial aspects to solve in order to produce high quality electron beams with a plasma accelerator.
A. Biagioni, A. Cianchi, A. Gallo, A. Giribono, A. Marocchino, A. Mostacci, A. Zigler, A.R. Rossi, Alesini, Anania, Aschikhin, Barber, Barov, Barov, Becker, Benedetti, Bennett, Blumenfeld, Bobrova, C. Vaccarezza, Chen, Chiadroni, Chiadroni, D. Di Giovenale, Dornmair, E. Brentegani, E. Chiadroni, F. Bisesto, F. Cardelli, F. Filippi, F. Villa, Ferrario, Filippi, G. Costa, G. Di Pirro, Geddes, Giorgianni, J. Scifo, J.B. Rosenzweig, Johnson, Kallos, L. Piersanti, Leemans, Lim, M. Bellaveglia, M. Ferrario, M.P. Anania, Marocchino, Marocchino, Marocchino, Martinez de la Ossa, Merling, Migliorati, Nichols, Panofsky, Pompili, R. Pompili, Ronsivalle, Rosenzweig, Rossi, Schaper, Su, Tomassini, Tzoufras, V. Shpakov, Vaccarezza, Van Tilborg, Van Tilborg, Walker, Wittig   +69 more
core   +2 more sources

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

Molecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix, Daniel Samaga, Katharina Gehr, Benedek Dankó, Mohamed Schumann, Guido Drexler, Ahmed Alnatsha, Georg Beyer, Ujjwal Mahajan, Martin Selmansberger, Julia Mayerle, Claus Belka, Horst Zitzelsberger, Kirsten Lauber   +13 more
wiley   +1 more source

Beam Quality of a Nonideal Atom Laser [PDF]

Physical Review Letters, 2006
We study the propagation of a non-interacting atom laser distorted by the strong lensing effect of the Bose-Einstein Condensate (BEC) from which it is outcoupled. We observe a transverse structure containing caustics that vary with the density within the residing BEC.
Riou, Jean-Félix, Guerin, William, Le Coq, Yann, Fauquembergue, Marie, Bouyer, Philippe, Josse, Vincent, Aspect, Alain   +6 more
openaire   +4 more sources

The Side-Effects of the Space Charge Field Introduced by Hollow Electron Beam in the Electron Cooler of CSRm

, 2015
Electron cooler is used to improve the quality of the beam in synchrotron, however it also introduces nonlinear electromagnetic field, which cause tuneshift, tunespread and may drive resonances leading to beam loss.
Li, Jie, Ma, Xiao-Ming, Mao, Li-Jun, Ruan, Shuang, Sha, Xiao-Ping, Tang, Mei-Tang, Wang, Geng, Wu, Bo, Yan, Tai-Lai, Yang, Xiao-Dong, Zhao, He, Zheng, Wen-Heng   +11 more
core   +1 more source

High quality electron beam generation in a proton-driven hollow plasma wakefield accelerator [PDF]

, 2017
Simulations of proton-driven plasma wakefield accelerators have demonstrated substantially higher accelerating gradients compared to conventional accelerators and the viability of accelerating electrons to the energy frontier in a single plasma stage ...
Hanahoe, Kieran, Li, Yangmei, Lotov, Konstantin V., Mete-Apsimon, Oznur, Sosedkin, Alexander P., Xia, Guoxing   +5 more
core   +3 more sources

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

The NSNS High Energy Beam Transport Line [PDF]

, 1997
In the National Spallation Neutron Source (NSNS) design, a 180 meter long transport line connects the 1 GeV linac to an accumulator ring. The linac beam has a current of 28 mA, pulse length of 1 ms, and 60 Hz rep rate.
Alessi, J., Lee, Y. Y., Raparia, D., Weng, W. T.   +3 more
core   +3 more sources