Results 71 to 80 of about 8,630,188 (308)

Modeling of plasma transport and negative ion extraction in a magnetized radio-frequency plasma source

New Journal of Physics, 2017
Negative ion sources for fusion are high densities plasma sources in large discharge volumes. There are many challenges in the modeling of these sources, due to numerical constraints associated with the high plasma density, to the coupling between plasma
G Fubiani, L Garrigues, G Hagelaar, N Kohen, J P Boeuf   +4 more
doaj   +1 more source

2D accelerator design for SITEX negative ion source [PDF]

, 1983
Solving the Poisson-Vlasov equations where the magnetic field, B, is assumed constant, we optimize the optical system of a SITEX negative ion source in infinite slot geometry.
McCollough, D. H., McGaffey, R. W., Stirling, W. L., Dagenhart, W. K., Whealton, J. H., Raridon, R. J.   +5 more
core  

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Recent Negative Ion Source Developments

, 1978
This report describes recent results obtained from studies associated with the development of negative ion sources which utilize sputtering in a diffuse cesium plasma as a means of ion beam generation.
Alton, G. D.
core  

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Assessment of plasma uniformity in the extraction region of an RF-driven negative ion source for CRAFT NNBI

Nuclear Fusion
The uniformity of beam, for large RF negative ion source, is closely related to the plasma uniformity in the extraction region. The six electrostatic probes were installed above the plasma grid (PG) 5 mm to evaluate the plasma uniformity.
Xufeng Peng, Yongjian Xu, Yufan Li, Jianglong Wei, Guangyong Mei, Bo Liu, YuWen Yang, Na Wang, Junwei Xie, Yahong Xie, Lizhen Liang, Bin Wu   +11 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Comparative experiments of different excitation frequency in a large-area RF negative ion source for NBI application

Nuclear Fusion
The excitation frequency is a critical parameter for the radio frequency (RF) ion source employed in the Neutral Beam Injection (NBI) system for the magnetic confinement fusion devices.
Na Wang, Bo Liu, Wei Liu, Xu-Feng Peng, Yu-Fan Li, Yu-Wen Yang, Yong-Jian Xu, Yu-Ming Gu, Cai-Chao Jiang, Ya-Hong Xie, Yuan-Lai Xie, Li-Zhen Liang, Jiang-Long Wei   +12 more
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Simulations for the cesium dynamics of the RF-driven prototype ion source for CRAFT N-NBI

Nuclear Engineering and Technology
To realize an initial objective of the negative ion-based neutral beam injection (N-NBI) at the Comprehensive Research Facility for Fusion Technology (CRAFT) test facility, which targets an H0 beam power of 2 MW at an energy of 200–400 keV and a pulse ...
Yalong Yang, Yong Wu, Lizhen Liang, Jianglong Wei, Rui Zhang, Yahong Xie, Wei Liu, Chundong Hu   +7 more
doaj   +1 more source