Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Dimitar Penev"'
Theoretical investigation of the impact of different timing schemes in hypofractionated radiotherapy
Autor:
Alan E. Nahum, P. Stavrev, Dimitar Penev, Nadejda Stavreva, Ruggero Ruggieri, Pavlin Tsonev, Dobromir S. Pressyanov
Publikováno v:
Medical Physics. 48:4085-4098
PURPOSE This study compares the effectiveness of three fractionation schemes of equal fraction size, comprising five fractions of SBRT over 5 days, 10 days, or 15 days, respectively. METHOD This comparative study is based on two tumor-control-probabi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b5c9828ab54cf85521feafa529fac1d
https://doi.org/10.1002/mp.14908
https://doi.org/10.1002/mp.14908
Publikováno v:
THERMOPHYSICAL BASIS OF ENERGY TECHNOLOGIES (TBET 2020).
Supercapacitors as any other capacitors also have tolerance in their capacitance. That brings difficulties when charging a series connected cells because the voltage of each cell changes with different rate. This problem had a solution called voltage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb9fcac1be993e09c7db195bd7f21650
https://doi.org/10.1063/5.0041820
https://doi.org/10.1063/5.0041820
Publikováno v:
2020 43rd International Spring Seminar on Electronics Technology (ISSE).
This paper presents a fast charging algorithm for battery bank made of connected in series supercapacitor cells. This algorithm allows simultaneously charging of all sells up to preliminary set up maximum voltage. Considering the tolerance in the cap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b865748e439f6e92e2a71861e10f8d3f
https://doi.org/10.1109/isse49702.2020.9120958
https://doi.org/10.1109/isse49702.2020.9120958
Publikováno v:
2020 43rd International Spring Seminar on Electronics Technology (ISSE).
The main goal during charging a battery made of supercapacitors connected in series is reaching the rated voltages across all cells at the end of the charging process. The voltage imbalance is due to the tolerance in the nominal capacitance of the ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7e937ebaa539b96af1b582dec701803
https://doi.org/10.1109/isse49702.2020.9121001
https://doi.org/10.1109/isse49702.2020.9121001
Publikováno v:
2019 II International Conference on High Technology for Sustainable Development (HiTech).
In the current paper an estimation of energy parameters in electric vehicles is presented. Multiple electric vehicles are examined with their characteristics. The main purposes of this article is to create comparatively simpler mathematical model for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f935ba0b7f980f4aff98949d2e5a6406
https://doi.org/10.1109/hitech48507.2019.9128246
https://doi.org/10.1109/hitech48507.2019.9128246
Autor:
Ruggero Ruggieri, Alan E. Nahum, P. Stavrev, Nadejda Stavreva, Dobromir S. Pressyanov, Dimitar Penev
Publikováno v:
Physics in medicine and biology. 63(20)
The aim of the work is to investigate the impact of radiation-independent (natural or spontaneous) tumor cell death on tumor control probability (TCP) during and following fractionated external-beam radiotherapy employing both analytical and numerica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e1b89a81e96f3e9f64451ff026e0e7c
https://pubmed.ncbi.nlm.nih.gov/30204124
https://pubmed.ncbi.nlm.nih.gov/30204124
Publikováno v:
IFMBE Proceedings ISBN: 9789811090349
Purpose: The purpose of this research is to assess Kerma Area Product (KAP) to Effective dose (E) conversion coefficients (CC) specific to gender of patient and type of radiography technique applied during X-ray radiography of Chest. Methods and mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01952c055b8d55308cf832b9ae8c0fea
https://doi.org/10.1007/978-981-10-9035-6_133
https://doi.org/10.1007/978-981-10-9035-6_133
Publikováno v:
SPIE Proceedings.
The carious decay develops a tiny area of demineralization on the enamel, which could be detected by element analytic techniques such as laser-induced breakdown spectroscopy (LIBS). That demineralization can quickly turn into a large lesion inside th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd6221cbf4244a8fb76f0db0bf8b8dba
https://doi.org/10.1117/12.2261423
https://doi.org/10.1117/12.2261423
Publikováno v:
AIP Conference Proceedings.
The following paperwork presents models of bidirectional converters. A classic bidirectional converter and a new bidirectional circuit based on a ZCS resonant converter are investigated and compared. The developed models of these converters allow com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f07126101ea3ed0a56b2beae627ad6e
https://doi.org/10.1063/1.5014020
https://doi.org/10.1063/1.5014020
Publikováno v:
AIP Conference Proceedings.
In the current paper is developed a mathematical model realized in Matlab for describing a buck-boost converter for control of small electric vehicle. The model is presented with differential equations which describes the processes in the converter.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbfbd37faa4178ffd75e0b86b906ef18
https://doi.org/10.1063/1.5014014
https://doi.org/10.1063/1.5014014