Results 31 to 40 of about 7,769,894 (338)

Research on the Key Parameters and Device Capacity Decoupling Analysis of Full Bridge MMC DC Ice-Melting Device

南方能源建设, 2023
[Introduction] This article aims to study the issue of the melting capacity and reactive output capacity of the full bridge modular multi-level converter (MMC) type DC (Direct Current) melting ice device under different operating modes.
Xiaogang WU, Rui HE
doaj   +1 more source

Orientation of Vortices in a Superconducting Thin-Film: Quantitative Comparison of Spin-Polarized Neutron Reflectivity and Magnetization [PDF]

, 2000
We present a quantitative comparison of the magnetization measured by spin-polarized neutron reflectivity (SPNR) and DC magnetometry on a 1370 \AA\ -thick Nb superconducting film.
A. A. Abrikosov, A. Mansour, A. P. Malozemoff, A. V. Pronin, C. A. Bolle, D. Craik, David. A Huse, E. Zeldov, Ernst Helmut Brandt, G. Blatter, G. P. Felcher, H. F. Hess, H. Kaiser, H. Kaiser, H. Zhang, I. V. Roshchin, J. Farmer, J. Guimpel, L. H. Greene, L. H. Greene, L. H. Greene, P. F. Miceli, P. F. Miceli, P. G. de Gennes, P. Lobotka, R. G. Mints, S. H. Brongersma, S. M. Yusuf, S. V. Gaponov, S.-W. Han, S.-W. Han, T. P. Orlando, T. P. Russell, V. Lauter-Pasyuk, V. Lauter-Pasyuk, Y. Paltiel   +35 more
core   +3 more sources

Study of the Effect of Transport Current and Combined Transverse and Longitudinal Fields on the AC Loss in NET Prototype Conductors [PDF]

, 1993
AC losses in cables carrying DC as well as AC transport currents at different DC background fields up to 2T have been measured on three types of Nb3Sn subcables in a new test facility.
Kate, H.H.J. ten, Nijhuis, A.
core   +3 more sources

Novel Design Methodology for DC-DC Converters Applying Metaheuristic Optimization for Inductance Selection

Applied Sciences, 2020
Nowadays in modern industrial applications, where the power supply efficiency is more important than the output noise performance, DC-DC converters are widely used in order to fulfill the requirements.
Efrain Mendez, Israel Macias, Alexandro Ortiz, Pedro Ponce, Adriana Vargas-Martinez, Jorge de Jesús Lozoya-Santos, Ricardo A. Ramirez-Mendoza, Ruben Morales-Menendez, Arturo Molina   +8 more
doaj   +1 more source

The Role of Space Charge on Corona Inception Threshold Conditions in Rod-Plane Air Gaps at DC/AC Combined Voltages

IEEE Access, 2021
This work investigates the corona inception voltage and the motion of space charge near a rod-plane electrode under combined DC-AC voltages. For a high AC component, the corona inception voltage of the equivalent negative corona exceeds that of the ...
Xuyuan He, Yunbo Zhou, Zichen He, Jie Zhu, Luxing Zhao, Boyang Shen, Xingming Bian   +6 more
doaj   +1 more source

Dynamical symmetry breaking as the origin of the zero-$dc$-resistance state in an $ac$-driven system

, 2003
Under a strong $ac$ drive the zero-frequency linear response dissipative resistivity $\rho_{d}(j=0)$ of a homogeneous state is allowed to become negative. We show that such a state is absolutely unstable.
A. J. Millis, A. V. Andreev, A. L. Zakharov, A. L. Zakharov, E. Schöll, I. L. Aleiner, M. I. D’yakonov, M. I. D’yakonov, M. I. D’yakonov, M. I. D’yakonov, P. I. Liao, S. A. Basun, V. I. Ryzhii, V. I. Ryzhii, V. I. Ryzhii, V. I. Ryzhii   +15 more
core   +1 more source

Radiotherapy Delivery in Deep Inspiration for Pediatric Patients—Final Results of the Phase II Feasibility Study TEDDI

Pediatric Blood &Cancer, EarlyView.
Abstract Introduction The TEDDI trial tested the feasibility and reproducibility of deep‐inspiration breath‐hold (DIBH) in pediatric patients referred for radiotherapy. This report presents final results, including patient‐reported outcomes (PRO) and dosimetric comparison of DIBH and free‐breathing (FB).
Daniella Elisabet Østergaard, Anni Young Lundgaard, Laura Ann Rechner, Danijela Dejanovic, Hanne Krogh Rose, Jolanta Hansen, Leila Vaalavirta, Miia Mokka, Marianne Aznar, Peder Skov Wehner, Lisa Lyngsie Hjalgrim, Maja Vestmø Maraldo   +11 more
wiley   +1 more source

Artifacts reduction in strain maps of tagged magnetic resonance imaging using harmonic phase

Open Medicine, 2015
Tagged Magnetic Resonance Imaging (MRI) is a noninvasive technique for examining myocardial function and deformation. Tagged MRI can also be used in quasistatic MR elastography to acquire strain maps of other biological soft tissues. Harmonic phase (HARP)
Wang Daolei, Fu YaBo, Aqeel Ashraf Muhammad   +2 more
doaj   +1 more source

Parametric instability of a magnetic junction under modulated spin-polarized current

, 2011
The stability is analyzed of the magnetic junction collinear configurations against small fluctuations under amplitude-modulated current with CPP mode. High spin injection is assumed.
Epshtein, E. M., Zilberman, P. E.
core   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source