Results 91 to 100 of about 80,405 (315)

Impact of APOE ε4 Genotype Load on Cognitive Function and Lipid Metabolism in Patients With Cerebral Small Vessel Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin, Haocheng Yang, Feng Liu, Sihao Lin, Junru Hu, Jian Wang, Yulan Gou   +6 more
wiley   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Industrial hygiene and safety implications of radiofrequency use in particle accelerator technologies

Radiation Protection and Environment
Despite their essential contributions, particle accelerators present unique occupational hazards, including exposure to ionizing radiation, high-voltage systems, cryogenic temperatures, and risks associated with handling hazardous materials and strong ...
Vyom Saxena
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

IPAC2010 Accelerator Prize article: Particle accelerators and colliders

Physical Review Accelerators and Beams, 2020
In this document, I recall my own personal memories of the conception, design, construction and operation of particle accelerators and particle colliders over the past 50 years.
Stephen Myers
doaj   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Development Status and Trend of Particle Accelerator in China

Yuanzineng kexue jishu, 2022
Particle accelerators in China have been in rapid development in the past twenty years and are approaching the world’s advanced level in terms of different types, scales and application directions.
TANG Jingyu;ZHOU Luping
doaj  

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

Advanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

Modelling of a variable length gas cell target for laser wakefield acceleration

High Power Laser Science and Engineering
We present time-dependent two-dimensional (2D) and three-dimensional (3D) fluid simulations of a gas cell with a variable length of 0–5 cm, designed for laser wakefield acceleration.
Runfeng Luo, Greg Christian, Michael Backhouse, Nelson Lopes, Saleh Alatabi, Michael Bloom, Matthias Maier, Zulfikar Najmudin   +7 more
doaj   +1 more source

Warp-X: a new exascale computing platform for beam-plasma simulations

, 2018
Turning the current experimental plasma accelerator state-of-the-art from a promising technology into mainstream scientific tools depends critically on high-performance, high-fidelity modeling of complex processes that develop over a wide range of space ...
Almgren, A., Bell, J., Ge, L., Grote, D. P., Hogan, M., Kononenko, O., Lehe, R., Myers, A., Ng, C., Park, J., Ryne, R., Shapoval, O., Thevenet, M., Vay, J. -L., Zhang, W.   +14 more
core   +1 more source