Results 21 to 30 of about 5,030,445 (248)

Analysis of Synchronous Generator Self-Excitation under Capacitive Load Condition in Variable-Frequency Aviation Power System

Machines, 2022
As power electronic converters become more widely used in aviation power systems, the associated capacitive loads in the harmonic filter circuits increase accordingly.
Haigang Liu, Chu Sun, Mengyu He, Na Wang, Yuanjun Zhou   +4 more
doaj   +1 more source

Safe Model-Based Reinforcement Learning for Systems With Parametric Uncertainties

Frontiers in Robotics and AI, 2021
Reinforcement learning has been established over the past decade as an effective tool to find optimal control policies for dynamical systems, with recent focus on approaches that guarantee safety during the learning and/or execution phases.
S. M. Nahid Mahmud, Scott A. Nivison, Zachary I. Bell, Rushikesh Kamalapurkar   +3 more
doaj   +1 more source

Surrogate impulse ground motion for practical simulation of critical nonlinear structural responses

Frontiers in Built Environment
Impulse-based representations of earthquake ground motions provide an efficient framework for evaluating critical nonlinear structural responses. However, the direct use of ideal impulse ground motions expressed by Dirac’s delta function may excite all ...
Hiroki Akehashi, Mao Kinoshita, Fumiya Ueno, Koji Yamato, Yusuke Ehara, Tatsuhiko Maeda   +5 more
doaj   +1 more source

Critical properties of quantum three- and four-state Potts models with boundaries polarized along the transverse field

SciPost Physics Core, 2022
By computing the low-lying energy excitation spectra with the density matrix renormalization group algorithm we show that boundaries polarized in the direction of the transverse field lead to scale-invariant conformal towers of states at the critical ...
Natalia Chepiga
doaj   +1 more source

Analysis of dynamic stability of nonlinear suspension

Advances in Mechanical Engineering, 2018
The vehicle is excited by the road surface while traveling. The vehicle suspensions play a significant role not only in damping out the vibrations created due to the excitation but also in maintaining the stability of the entire system.
Jun Yao, Jin Qiu Zhang, Ming Mei Zhao, Zi Jian Wei   +3 more
doaj   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono, Yoshifumi Moriyama, Koji Ohashi, Naoya Otaka, Minako Tatsumi, Toyoaki Murohara, Noriyuki Ouchi, Satoru Oshima   +7 more
wiley   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Excitation-Dependent Fluorescence with Excitation-Selective Circularly Polarized Luminescence from Hierarchically Organized Atomic Nanoclusters

, 2023
Nanometer-scaled objects are known to have dimension-related properties, but sometimes the assembly of such objects can lead to the emergence of other properties.
Željka Sanader Maršić (16891596), Martina Perić Bakulić, Srestha Basu, Željka Sanader Maršić, Nadav Amdursky (1710997), Srestha Basu (6082295), Martina Perić Bakulić (16891593), Vlasta Bonačić-Koutecký, Nadav Amdursky, Vlasta Bonačić-Koutecký (1748803)   +9 more
core   +1 more source

Field-angle anisotropy of proximate Kitaev systems under an in-plane magnetic field

Physical Review Research, 2021
We have investigated the field-angle behaviors of magnetic excitations under an in-plane magnetic field for proximate Kitaev systems. By employing the exact diagonalization method in conjunction with the linear spin wave theory, we have demonstrated that
Beom Hyun Kim
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source