Results 11 to 20 of about 425 (58)

Developing a phantom for the positronium imaging evaluation [PDF]

open access: yes, 2022
In this contribution, a concept for a new phantom for positronium imaging with PET scanners is described. The proposed phantom is based on the NEMA IEC phantom in which six high-activity spheres are filled with solutions characterized by a different mean
Moskal, Paweł   +2 more
core   +2 more sources

Nonlinear 3-D simulation of high-intensity focused ultrasound therapy in the Kidney [PDF]

open access: yes, 2016
Kidney cancer is a severe disease which can be treated non-invasively using high-intensity focused ultrasound (HIFU) therapy. However, tissue in front of the transducer and the deep location of kidney can cause significant losses to the efficiency of the
Cleveland, R   +3 more
core   +1 more source

Development of the Stem of Jatropha Multifida Linn as a New Antimalarial Through Erythrocytes Test on Mus Musculus Infected by Plasmodium Berghei [PDF]

open access: yes, 1991
Introduction : Jatropha multifida Linne is known as Betadin plant by the Bengkulunese. The stem extract of J. multifida has antibacterial activity. This study examined the potential of stem extract of J.
Sundaryono, A. (Agus)   +2 more
core   +5 more sources

Recovering missing slices of the discrete fourier transform using ghosts [PDF]

open access: yes, 2012
The discrete Fourier transform (DFT) underpins the solution to many inverse problems commonly possessing missing or unmeasured frequency information. This incomplete coverage of the Fourier space always produces systematic artifacts called Ghosts.
Chandra, Shekhar S.   +4 more
core   +1 more source

Overview of the software architecture and data flow for the J-PET tomography device [PDF]

open access: yes, 2016
Modern TOF-PET scanner systems require high-speed computing resources for efficient data processing, monitoring and image reconstruction. In this article, we present the data flow and software architecture for the novel TOF-PET scanner developed by the J-
Alfs, Dominika   +21 more
core   +2 more sources

The HEV Ventilator Proposal [PDF]

open access: yes, 2020
We propose the design of a ventilator which can be easily manufactured and integrated into the hospital environment to support COVID-19 patients. The unit is designed to support standard ventilator modes of operation, most importantly PRVC (Pressure ...
Abud, A. Abed   +30 more
core   +2 more sources

3-D Registration on Carotid Artery imaging data: MRI for different timesteps

open access: yes, 2016
A common problem which is faced by the researchers when dealing with arterial carotid imaging data is the registration of the geometrical structures between different imaging modalities or different timesteps.
Bizopoulos, Paschalis A.   +4 more
core   +1 more source

Dynamic Scaling of Non-Euclidean Interfaces

open access: yes, 2008
The dynamic scaling of curved interfaces presents features that are strikingly different from those of the planar ones. Spherical surfaces above one dimension are flat because the noise is irrelevant in such cases.
A.-L. Barabási   +5 more
core   +1 more source

Multichannel FPGA based MVT system for high precision time (20~ps~RMS) and charge measurement

open access: yes, 2017
In this article it is presented an FPGA based $M$ulti-$V$oltage $T$hreshold (MVT) system which allows of sampling fast signals ($1-2$ ns rising and falling edge) in both voltage and time domain.
Bednarski, T.   +31 more
core   +1 more source

Study of Air Curtain in Context of Individual Protection from Exposure to Coronavirus (SARS-CoV-2) Contained in Cough-Generated Fluid Particles

open access: yes, 2020
The ongoing respiratory COVID-19 pandemic has heavily impacted the social and private lives of the majority of the global population. This infection is primarily transmitted via virus-laden fluid particles (i.e., droplets and aerosols) that are formed in
Sakharov, Alexander S.   +1 more
core   +1 more source

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