Results 111 to 120 of about 44,777 (358)

Some more algorithms for Conway’s universal automaton

Acta Universitatis Sapientiae: Informatica, 2014
In this paper authors propose algorithms for constructing so called automaton COM(L) and prove that this automaton coincides, up to re-denoting states, with Conway’s universal automaton. We give some algorithms of constructing this automaton and consider
Melnikov Boris, Dolgov Vasily
doaj   +1 more source

The semigroup of an algebra automaton

Journal of Computer and System Sciences, 1976
In this paper we construct for a given algebra automaton the semigroup of functionswhich can be defined by that algebra automaton. We then express this semigroup as an operator semigroup with prescribed generators. Further, we characterize the algebra automata of algebras in a particular variety.
openaire   +2 more sources

Dose rate correction of a diode array for universal wedge field dosimetric verification

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To study the performance of MapCHECK 3 (MC3) in measuring universal wedge fields and propose a dose rate correction strategy to improve MC3 measurement accuracy. Materials and methods Universal wedge fields with different wedge angles and field sizes were measured at different depths using MC3.
Linyi Shen, Mengyang Li, Guiyuan Li, Xinyuan Chen, Shouping Xu, Jianrong Dai, Yuan Tian   +6 more
wiley   +1 more source

Representation of the stochastic matrix sets with given properties based on autonomous automatic models

Учёные записки Казанского университета: Серия Физико-математические науки, 2019
This paper considers the methods of construction (presentation) of the sets of ergodic stochastic matrices using automaton models and determination of the power estimates of the generated sets. The research aimed at developing algorithms for constructing
V.M. Zakharov, S.V. Shalagin, B.F. Eminov   +2 more
doaj   +1 more source

Complexity of checking whether two automata are synchronized by the same language [PDF]

arXiv, 2014
A deterministic finite automaton is said to be synchronizing if it has a reset word, i.e. a word that brings all states of the automaton to a particular one. We prove that it is a PSPACE-complete problem to check whether the language of reset words for a given automaton coincides with the language of reset words for some particular automaton.
arxiv  

Digitally programmable microfluidic automaton for multiscale combinatorial mixing and sample processing.

Lab on a Chip, 2013
A digitally programmable microfluidic Automaton consisting of a 2-dimensional array of pneumatically actuated microvalves is programmed to perform new multiscale mixing and sample processing operations.
E. Jensen, A. Stockton, T. Chiesl, Jungkyu Kim, A. Bera, R. Mathies   +5 more
semanticscholar   +1 more source

Monte Carlo modeling of radiation dose from radiation therapy with superficial x‐rays

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction Superficial x‐rays (50–100 kVp) are used for treating non‐melanoma skin cancer and intraoperative radiation therapy (IORT). At these energies, the photoelectric effect significantly increases absorbed dose to bone compared to soft tissue.
Reham Barghash, Tiffany W. Martin, Amber R. Prebble, Del Leary   +3 more
wiley   +1 more source

A One-Dimensional Physically Universal Cellular Automaton [PDF]

arXiv, 2015
Physical universality of a cellular automaton was defined by Janzing in 2010 as the ability to implement an arbitrary transformation of spatial patterns. In 2014, Schaeffer gave a construction of a two-dimensional physically universal cellular automaton. We construct a one-dimensional version of the automaton.
arxiv  

Practical experience in commissioning ring applicators using ring applicator component type with bravos control software v1.2

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The Bravos v1.2 control software introduces a ring applicator component type (ACT) with channel length verification to address geometric characteristics and dosimetric discrepancies caused by source positioning inaccuracies. This study aims to commission the ring applicator and investigate the new ring ACT in Bravos 1.2.
Xiuxiu He, Michael A. Trager, Gil'ad N. Cohen, Antonio L. Damato, David Aramburu Núñez   +4 more
wiley   +1 more source

Geometric and dosimetric evaluation of a commercial AI auto‐contouring tool on multiple anatomical sites in CT scans

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Current radiotherapy practices rely on manual contouring of CT scans, which is time‐consuming, prone to variability, and requires highly trained experts. There is a need for more efficient and consistent contouring methods. This study evaluated the performance of the Varian Ethos AI auto‐contouring tool to assess its potential integration into
Robert N. Finnegan, Alexandra Quinn, Patrick Horsley, Joseph Chan, Maegan Stewart, Regina Bromley, Jeremy Booth   +6 more
wiley   +1 more source