Zobrazeno 1 - 10
of 828
pro vyhledávání: '"C. KRAFFT"'
Autor:
Michael Herzog, Frieder C. Krafft, Bernd J. Stetter, Andrea d’Avella, Lizeth H. Sloot, Thorsten Stein
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-18 (2023)
Abstract The transitions between sitting and standing have a high physical and coordination demand, frequently causing falls in older individuals. Rollators, or four-wheeled walkers, are often prescribed to reduce lower-limb load and to improve balan
Externí odkaz:
https://doaj.org/article/1c483be171524253b6097e2fd633f6db
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L20 (2024)
Large-scale and long-term two-dimensional particle-in-cell simulations performed for parameters relevant to type III solar radio bursts have provided new results on the generation mechanisms of fundamental electromagnetic waves radiated at the plasma
Externí odkaz:
https://doaj.org/article/243fe40d4b5b45f3b471c4d926f899eb
Autor:
C. Krafft, P. Savoini
Publikováno v:
The Astrophysical Journal Letters, Vol 964, Iss 2, p L30 (2024)
Despite a few space observations where Langmuir and ion acoustic waves are expected to participate in the mechanism of electrostatic decay, this is to date believed to be the main and fastest nonlinear wave process in the solar wind. However, in such
Externí odkaz:
https://doaj.org/article/863bd920f6564bc19b4ea2cbe77caeb5
Autor:
C. Krafft, A. S. Volokitin
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 65 (2024)
In the solar wind, electromagnetic waves at the harmonic plasma frequency 2 ω _p can be generated as a result of coalescence between forward- and backward-propagating Langmuir waves. A new approach to calculate their radiation efficiency in plasmas
Externí odkaz:
https://doaj.org/article/ebec8d68b51d4397977b39d834a940d5
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 10 (2022)
Four-wheeled walkers or rollators are often used to assist older individuals in maintaining an independent life by compensating for muscle weakness and reduced movement stability. However, limited biomechanical studies have been performed to understa
Externí odkaz:
https://doaj.org/article/7395c50deda14449b691a4bc38580d81
Autor:
C. Krafft, P. Savoini
Publikováno v:
The Astrophysical Journal, Vol 949, Iss 1, p 24 (2023)
The dynamics of a type III electron beam generating Langmuir wave turbulence and subsequent electromagnetic emissions is studied owing to two-dimensional Particle-In-Cell simulations performed in both homogeneous and randomly inhomogeneous solar wind
Externí odkaz:
https://doaj.org/article/b89db0cecb824006bf6422e9c09c1a19
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 8 (2020)
Joint moment measurements represent an objective biomechanical parameter of knee joint load in knee osteoarthritis (KOA). Wearable sensors in combination with machine learning techniques may provide solutions to develop assistive devices in KOA patie
Externí odkaz:
https://doaj.org/article/5d7d5ff58355443d8f453ebe36b9333e
Akademický článek
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Publikováno v:
Sensors, Vol 19, Iss 17, p 3690 (2019)
Knee joint forces (KJF) are biomechanical measures used to infer the load on knee joint structures. The purpose of this study is to develop an artificial neural network (ANN) that estimates KJF during sport movements, based on data obtained by wearab
Externí odkaz:
https://doaj.org/article/4ee9fedf4b034fa1b264daead66f617d
Akademický článek
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