Results 41 to 50 of about 2,508,631 (310)

Computer simulation of channel processes [PDF]

open access: yesE3S Web of Conferences, 2019
The article discusses the results of numerical studies of flow movement with a sharp change in the channel parameters. The numerical study of the flow in the channels and rivers creates the possibility of a multivariate forecast of channel processes ...
Shokirov B   +4 more
doaj   +1 more source

Quantum Analogue Computing [PDF]

open access: yes, 2010
We briefly review what a quantum computer is, what it promises to do for us, and why it is so hard to build one. Among the first applications anticipated to bear fruit is quantum simulation of quantum systems.
Deutsch D.   +7 more
core   +1 more source

Evaluation of an EPID in vivo monitoring system using local and external independent audit measurements

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The aim of this work was to evaluate the SunCHECK PerFRACTION, the software for in vivo monitoring using EPID images. Materials/Methods First, the PerFRACTION ability to detect errors was investigated simulating two situations: (1) variation of LINAC output and (2) variation of the phantom thickness.
Samuel Ramalho Avelino   +3 more
wiley   +1 more source

A framework for evaluating epidemic forecasts

open access: yesBMC Infectious Diseases, 2017
Background Over the past few decades, numerous forecasting methods have been proposed in the field of epidemic forecasting. Such methods can be classified into different categories such as deterministic vs.
Farzaneh Sadat Tabataba   +6 more
doaj   +1 more source

Fluid Simulation System Based on Graph Neural Network [PDF]

open access: yesarXiv, 2022
Traditional computational fluid dynamics calculates the physical information of the flow field by solving partial differential equations, which takes a long time to calculate and consumes a lot of computational resources. We build a fluid simulation simulator based on the graph neural network architecture. The simulator has fast computing speed and low
arxiv  

Digital radiography image quality evaluation using various phantoms and software

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas   +4 more
wiley   +1 more source

Stability of scalarized charged black holes in the Einstein–Maxwell–Scalar theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
We analyze the stability of scalarized charged black holes in the Einstein–Maxwell–Scalar (EMS) theory with quadratic coupling. These black holes are labelled by the number of $$n=0,1,2,\ldots $$ n=0,1,2,… , where $$n=0$$ n=0 is called the fundamental ...
Yun Soo Myung, De-Cheng Zou
doaj   +1 more source

Efficient techniques to GPU Accelerations of Multi-Shot Quantum Computing Simulations [PDF]

open access: yesarXiv, 2023
Quantum computers are becoming practical for computing numerous applications. However, simulating quantum computing on classical computers is still demanding yet useful because current quantum computers are limited because of computer resources, hardware limits, instability, and noises.
arxiv  

Accuracy of patient dose estimation in cone beam computed tomography in breast irradiation by size‐specific dose estimates with position correction

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract This study aims to investigate the effects of the position correction of size‐specific dose estimates (SSDE) on patient dose estimation in cone beam computed tomography (CBCT). The relationship between the phantom position and absorbed dose in the right breast was studied using optically stimulated luminescence dosimeters and a simulated human
Hiroyuki Ueno   +3 more
wiley   +1 more source

Efficient Data Collection in Widely Distributed Wireless Sensor Networks with Time Window and Precedence Constraints

open access: yesSensors, 2017
In addition to the traditional densely deployed cases, widely distributed wireless sensor networks (WDWSNs) have begun to emerge. In these networks, sensors are far away from each other and have no network connections.
Peng Liu, Tingting Fu, Jia Xu, Yue Ding
doaj   +1 more source

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