A highly parallelized 3D code, based on the Particle-In-Cell approach is used for self-consistent simulations of highly energetic microwave sources (gyrotron resonator and launcher) for fusion plasma heating. We prese...
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A highly parallelized 3D code, based on the Particle-In-Cell approach is used for self-consistent simulations of highly energetic microwave sources (gyrotron resonator and launcher) for fusion plasma heating. We present results for some isolated components of TE 0, 3 and the TE 22, 6 gyrotron.
We discuss the relation between Bell’s and Boole’s inequality. We apply both to the analysis of measurement results in idealized Einstein‐Podolsky‐Rosen‐Bohm experiments. We present a local realist model that vio...
We discuss the relation between Bell’s and Boole’s inequality. We apply both to the analysis of measurement results in idealized Einstein‐Podolsky‐Rosen‐Bohm experiments. We present a local realist model that violates Bell’s and Boole’s inequality due to the absence of Boole’s one‐to‐one correspondence between the two‐valued variables of the mathematical description and the two‐valued measurement results.
Bubble-nucleation processes of a Lennard-Jones liquid are studied by molecular dynamics simulations. Waiting time, which is the lifetime of a superheated liquid, is determined for several system sizes, and the apparen...
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Bubble-nucleation processes of a Lennard-Jones liquid are studied by molecular dynamics simulations. Waiting time, which is the lifetime of a superheated liquid, is determined for several system sizes, and the apparent finite-size effect of the nucleation rate is observed. From the cumulative distribution function of the nucleation events, the bubble-nucleation process is found to be not a simple Poisson process but a Poisson process with an additional relaxation time. The parameters of the exponential distribution associated with the process are determined by taking the relaxation time into account, and the apparent finite-size effect is removed. These results imply that the use of the arithmetic mean of the waiting time until a bubble grows to the critical size leads to an incorrect estimation of the nucleation rate.
Over the past decade, the Arctic Ocean and Beaufort Sea ice pack has been less extensive and thinner than has been observed during the previous 35 years [e.g., Wadhams and Davis , 2000; Tucker et al. , 2001; Rothrock ...
Over the past decade, the Arctic Ocean and Beaufort Sea ice pack has been less extensive and thinner than has been observed during the previous 35 years [e.g., Wadhams and Davis , 2000; Tucker et al. , 2001; Rothrock et al. , 1999; Parkinson and Cavalieri , 2002; Comiso , 2002]. During the summers of 2007 and 2008, the ice extents for both the Beaufort Sea and the Northern Hemisphere were the lowest on record. Mechanisms causing recent sea ice change in the Pacific Arctic and the Beaufort Sea are under investigation on many fronts [e.g., Drobot and Maslanik , 2003; Shimada et al. , 2006]; the mechanisms include increased ocean surface warming due to Pacific Ocean water inflow to the region and variability in meteorological and surface conditions. However, in most studies addressing these events, the impact of sea ice dynamics, specifically deformation, has not been measured in detail.
A non‐axisymmetric structure of accretion disks around the neutron star in Be/X‐ray binaries is studied, analyzing the results from 3D SPH simulations performed by [1]. It is found that a ram pressure due to the ph...
A non‐axisymmetric structure of accretion disks around the neutron star in Be/X‐ray binaries is studied, analyzing the results from 3D SPH simulations performed by [1]. It is found that a ram pressure due to the phase‐dependent mass transfer from the Be‐star disk excites a one‐armed, trailing spiral structure in the accretion disk around the neutron star. The spiral wave has a transient nature; it is excited around the periastron, when the material is transferred from the Be disk, and gradually damped afterwards. We also find that the orbital phase‐dependence of the mass‐accretion rate is mainly caused by the inward propagation of the spiral wave excited on the accretion disks.
In this paper, we propose an approach to molecular simulationbased experiments which combines workflow management and grid computing techniques to address both the computing issue due to the challenging computation re...
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This book presents the latest findings and ongoing research in the field of environmental informatics. It addresses a wide range of cross-cutting activities, such as efficient computing, virtual reality, disruption ma...
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ISBN:
(数字)9783319996547
ISBN:
(纸本)9783319996530;9783030076191
This book presents the latest findings and ongoing research in the field of environmental informatics. It addresses a wide range of cross-cutting activities, such as efficient computing, virtual reality, disruption management, big data, open science and the internet of things, and showcases how these green information & communication technologies (ICT) can be used to effectively address environmental and societal challenges. Presenting a selection of extended contributions to the 32nd edition of the International Conference EnviroInfo 2018, at the Leibniz supercomputing Centre in Garching near Munich, it is essential reading for anyone looking to expand their expertise in the area.
This book is an outcome of the 33rd International Conference EnviroInfo 2019, held at the University of Kassel, Germany. It presents a selection of papers that describe innovative scientific approaches and ongoing res...
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ISBN:
(数字)9783030308629
ISBN:
(纸本)9783030308612;9783030308643
This book is an outcome of the 33rd International Conference EnviroInfo 2019, held at the University of Kassel, Germany. It presents a selection of papers that describe innovative scientific approaches and ongoing research in environmental informatics and the emerging field of computational sustainability. The respective articles cover a broad range of scientific aspects including advances in core technologies such as earth observation, environmental modelling, big data and machine learning, as well as applications of ICT solutions intended to support societal transformation processes toward the more sustainable management of resource use, transportation and the energy supply. Given its scope, the book is essential reading for scientists, experts and students in these fields of research.
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