Results 1 to 10 of about 17,996 (120)

Dosimetry Evaluation of Treatment Planning Systems in Patient-Specific 3D Printed Anthropomorphic Phantom for Breast Cancer after Mastectomy using a Single-Beam 3D-CRT Technique for Megavoltage Electron Radiation Therapy [PDF]

Journal of Biomedical Physics and Engineering, 2023
Background: The patient-specific 3D printed anthropomorphic phantom is used for breast cancer after mastectomy developed by the laboratory of medical physics and biophysics, Department of Physics, Institut Teknologi Sepuluh Nopember, Indonesia.
Endarko Endarko, Siti Aisyah, Aditya Prayugo Hariyanto, Mohammad Haekal, Nandia Kavilani, Ahmad Syafi’i   +5 more
doaj   +1 more source

Direct observation of dislocation motion in the complex alloy T-Al-Mn-Fe using in-situ transmission electron microscopy

Materials Research Letters, 2023
Metadislocations are novel defects recently identified in complex metallic alloys. It was reasoned that their propagation necessarily requires the orchestrated motion of hundreds of atoms along various crystallographic directions per elementary step ...
Marc Heggen, Michael Feuerbacher, Rafal E. Dunin-Borkowski   +2 more
doaj   +1 more source

A 16-year Survey of Clinicopathological Findings, Electron Microscopy, and Classification of Renal Amyloidosis [PDF]

Iranian Journal of Medical Sciences, 2021
Background: Electron microscopy (EM) is a valuable tool in the diagnosis of renal amyloidosis, particularly in the early stages of the disease. In Iran, studies on EM and the clinical features of renal amyloidosis are scarce. The objective of the present
Seyed Mohammad Owji, Hadi Raeisi Shahraki, Seyed Hossein Owji   +2 more
doaj   +1 more source

Electronic Markets and Electronic Hierarchies [PDF]

Communications of the ACM, 1987
Abstract The innovations in information technologies of the past two decades have radically reduced the time and cost of processing and communicating information. These reductions have in turn brought many changes in the ways that tasks are accomplished in firms.
Thomas W. Malone, JoAnne Yates, Robert I. Benjamin   +2 more
openaire   +1 more source

Practical Dosimetry Considerations for Small MLC-Shaped Electron Fields at 60 cm SSD [PDF]

Journal of Biomedical Physics and Engineering, 2022
Superficial tumours can be treated with megavoltage electron beams. The underlying tissue can be spared through the steep dose fall-off gradients over a range of a few centimetres.An accurate Monte Carlo model for an Elekta Precise was determined and ...
Déte Van Eeden, Karl N. Sachse, Freek C.P. Du Plessis   +2 more
doaj   +1 more source

Initial Studies of Electron Beams as a Means of Modifying Collagen

Physics, 2021
We present the initial design studies and specifications for an accelerator and conveyor system to irradiate collagen samples, modifying properties such as the putrescibility and mechanical behaviours in a paradigm shift from existing, widely used ...
Robert Apsimon, Sadiq Setiniyaz, Rebecca Seviour, William Wise, Tobias Junginger, Maribel Juarez Hernandez, Edgar Ortiz   +6 more
doaj   +1 more source

Influence of Electron Injection on the Characteristics of a Hollow Cathode Glow Discharge

East European Journal of Physics, 2021
The article presents the results of experimental studies of a glow discharge with a hollow cathode in helium and argon gases using an auxiliary discharge as an electron emitter. The authors proposed to make the electrode common for both discharges in the
Stanislav V. Pogorelov, Volodymyr A. Timaniuk, Nikolay G. Kokodii, Ihor V. Krasovskyi   +3 more
doaj   +1 more source

Study of Photoneutron Production for the 18 MV Photon Beam of the Siemens Medical linac by Monte Carlo Simulation [PDF]

Journal of Biomedical Physics and Engineering, 2020
Background: Considering the importance of photoneutron production in linear accelerators, it is necessary to describe and measure the photoneutrons produced around modern linear accelerators.
H Dowlatabadi, A A Mowlavi, M Ghorbani, S Mohammadi, C Knaup   +4 more
doaj   +1 more source

Electron–electron and electron–hole pairing in graphene structures [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
The superconducting pairing of electrons in doped graphene owing to in-plane and out-of-plane phonons is considered. It is shown that the structure of the order parameter in the valley space substantially affects conditions of the pairing. Electron–hole pairing in a graphene bilayer in the strong coupling regime is also considered.
Lozovik, Yu. E., Ogarkov, S. L., Sokolik, A. A.   +2 more
openaire   +3 more sources

Storm-Time Evolution of the Equatorial Electron Pitch Angle Distributions in Earth’s Outer Radiation Belt

Frontiers in Astronomy and Space Sciences, 2022
In this study we analyze the storm-time evolution of equatorial electron pitch angle distributions (PADs) in the outer radiation belt region using observations from the Magnetic Electron Ion Spectrometer (MagEIS) instrument aboard the Van Allen Probes in
Artem Smirnov, Artem Smirnov, Yuri Shprits, Yuri Shprits, Yuri Shprits, Hayley Allison, Nikita Aseev, Alexander Drozdov, Peter Kollmann, Dedong Wang, Anthony A. Saikin   +10 more
doaj   +1 more source