Results 101 to 110 of about 30,865 (351)

A simplified controller and detailed dynamics of constant off-time peak current control [PDF]

, 2017
A fast and reliable current control is often the base of power electronic converters. The traditional constant frequency peak control is unstable above 50 % duty ratio.
Dimitrova, Ekaterina, Feradov, Firgan, Valchev, Vencislav, Van den Bossche, Alex   +3 more
core   +2 more sources

Temporal Modeling of Amyloid and Tau Trajectories in Alzheimer's Disease Using PET and Plasma Biomarkers

Annals of Neurology, EarlyView.
Objective This study aimed to compare positron emission tomography (PET) and plasma‐based temporal modeling of amyloid and tau biomarkers in Alzheimer's disease. Methods Longitudinal amyloid PET (n = 1,097, mean age ± SD = 72.5 ± 7.38 year, 51.4% male), 18F‐flortaucipir tau‐PET (n = 230, 74.3 ± 7.18 year, 52.2% female), and Fujirebio Lumipulse plasma p‐
Christopher A. Brown, Katheryn A.Q. Cousins, Magdalena Korecka, Emily McGrew, Alice Chen‐Plotkin, John A. Detre, Corey T. McMillan, Edward B. Lee, Sandhitsu R. Das, Dawn Mechanic‐Hamilton, Paul A. Yushkevich, Ilya M. Nasrallah, Leslie M. Shaw, for the Alzheimer's Disease Neuroimaging Initiative, David A. Wolk   +14 more
wiley   +1 more source

Design of Full-bridge Soft-switching DC/DC Converter Based on LLC Resonant

机车电传动, 2019
In order to adapt to the development trend of high frequency and high power density of converter products, the working principle of LLC resonant soft-switching circuit was mainly introduced, the main mathematical relationship of LLC resonant network was ...
Xiaoyong ZHANG, Qing ZHANG, Peinan RAO, Zhidong GENG, Pan LUO   +4 more
doaj  

Observation of Coherently-Enhanced Tunable Narrow-Band Terahertz Transition Radiation from a Relativistic Sub-Picosecond Electron Bunch Train

, 2011
We experimentally demonstrate the production of narrow-band ($\delta f/f \simeq20$% at $f\simeq 0.5$ THz) THz transition radiation with tunable frequency over [0.37, 0.86] THz.
A. H. Lumpkin, Ginzburg V. L., Ginzburg V. L., J. Ruan, M. M. Rihaoui, P. Piot, R. Thurman-Keup, T. J. Maxwell, Y.-E Sun   +8 more
core   +1 more source

Transient Transfection of Rolling‐Circle Amplified DNA in Biomanufacturing‐Relevant Mammalian Cell Lines: A Comparison of Transfection Conditions for Optimal Protein Expression

Biotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Rolling‐circle amplification (RCA) is a completely synthetic and rapid mechanism for scaling‐up bulk DNA that eliminates requirements for large‐scale bacterial fermentation. Several reports have described the surprising ability of large unprocessed (hyperbranched) rolling circle‐amplified DNA (RCA DNA) to effectively transfect cultured cells ...
Evelina Loghin, Erik Kvam, Lisa Lowery, Nathan Hudson, Jenny Keen, Brian Davis, Roger B. Dodd, Christine Surrette, John Nelson   +8 more
wiley   +1 more source

A Novel High Efficiency Quasi-Resonant Converter

Energies, 2018
In this paper, a new constant-frequency quasi-resonant converter is proposed. Compared with the traditional LLC converter, the proposed converter can effectively reduce the range of the operating frequency.
Tianyu Zhu, Jianze Wang, Yanchao Ji, Yiqi Liu   +3 more
doaj   +1 more source

Wurtzite‐Chalcopyrite Crystal Polymorphism in CuGaS2 Nanoparticles Dictates the Localized Surface Plasmon Resonance

Chemistry – A European Journal, EarlyView.
Crystal phase‐ and size‐selective synthesis of chalcopyrite and wurtzite‐type CuGaS2 NPs was successfully achieved. They exhibited clear LSPR in the NIR region. The extinction coefficient of chalcopyrite was three times higher than that of wurtzite due to its greater symmetry and dipole moment. These results will enable precise control of the plasmonic
Keito Sano, Daniel M. Packwood, Masanori Sakamoto   +2 more
wiley   +1 more source

Development of a half-bridge LLC DC-DC loaded resonant converter for low power application / Mazliza Abdul Halim [PDF]

, 2018
An LLC DC-DC loaded resonant converter is gaining more attention in power-supply designs due to its potential to achieve high efficiency and power density.
Abdul Halim, Mazliza
core  

Mathematical model of the LLC resonant converter

Proceedings of Tomsk State University of Control Systems and Radioelectronics, 2020
The numerical-analytical model of the voltage regulator based on full-bridge LLC resonant converter is proposed in this paper. In the text of the article LLC converters operation algorithm on each working interval is investigated. The proposed mathematical model describes key elements behavior on duty cycle and allows the study of nonlinear dynamic ...
A. A. Stolyarova, S. G. Mikhalcenko, V. I. Apasov   +2 more
openaire   +1 more source

Advances in Human Mass Balance Studies: An IQ Consortium Perspective on Current Practices and Emerging Trends

Clinical Pharmacology &Therapeutics, EarlyView.
Human radiolabeled mass balance studies are crucial for comprehensively characterizing the absorption, distribution, metabolism, and excretion (ADME) of investigational drugs, providing essential data for drug development, regulatory evaluation, and product labeling.
Jason Boer, Ellen Cannady, Filip Cuyckens, Ulrike Glaenzel, Camille Granvil, Felix Huth, Alexander D. James, Wenying Li, Céline Veau, Graeme Young, Qin Yue, Gregory S. Walker, Upendra A. Argikar, Jonathan N. Bauman, Cathy Cantalloube, Yu‐Luan Chen, Ping Kang, Patricia Moliner, Mette L. Pedersen, Isabel Piel, Simone Schadt, Hanno Schieferstein, Julia Suchomel, Shuai Wang, S. Cyrus Khojasteh   +24 more
wiley   +1 more source