Results 31 to 40 of about 1,254,288 (295)

Control Strategy of Dual Power Supply Excitation System for HTS Synchronous Condenser

IEEE Access
High temperature superconducting (HTS) synchronous condenser is a novel large-capacity reactive power compensation device. Its reactive power compensation capacity and accuracy are mainly determined by the excitation system, making the excitation power ...
Jinfeng Wang, Hao Yin, Tiantian Cao, Zhu Liu, Dayi Li   +4 more
doaj   +1 more source

Nonlinear dynamic characteristics of planetary gear transmission system considering squeeze oil film

Journal of Low Frequency Noise, Vibration and Active Control, 2021
Based on the planetary gear transmission system considering the coupling effects of friction and elastohydrodynamic lubrication, a torsional dynamic model considering friction, oil film, time-varying meshing stiffness, meshing damping, and gear backlash ...
Jingyue Wang, Ning Liu, Haotian Wang, Lixin Guo   +3 more
doaj   +1 more source

Collective excitations of Dirac electrons in a graphene layer with spin-orbit interaction

, 2006
Coulomb screening and excitation spectra of electrons in a graphene layer with spin-orbit interaction (SOI) is studied in the random phase approximation.
M. Wilson, T. Ando, Tapash Chakraborty, Xue-Feng Wang   +3 more
core   +1 more source

Power Compatibility of Induction Motors in Industrial Grids Containing Synchronous Generators

Energies
Starting an induction motor causes voltage sag in the industrial grid that may disturb the operation of grid equipment. Direct-on-line starting is the simplest and most cost-effective method for starting induction motors, but also the most problematic ...
Yuriy Varetsky, Michal Gajdzica
doaj   +1 more source

Parametric Excitation and Squeezing in a Many-Body Spin System

, 2015
We demonstrate a new method to coherently excite and control the quantum spin states of an atomic Bose gas using parametric excitation of the collective spin by time varying the relative strength of the Zeeman and spin-dependent collisional interaction ...
Anquez, M., Chapman, M. S., Hamley, C. D., Hoang, T. M., Land, B. J., Robbins, B. A., Yang, X. Y.   +6 more
core   +1 more source

Multifrequency spin resonance in diamond

, 2010
Magnetic resonance techniques provide a powerful tool for controlling spin systems, with applications ranging from quantum information processing to medical imaging.
Childress, Lilian, McIntyre, Jean
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Design and Test of High-Low Voltage Excitation System for HTS Synchronous Condenser

IEEE Access
Temperature superconducting (HTS) synchronous condenser is a reactive power compensation device with the advantages of low loss, high efficiency and wide reactive power range. Therefore, it has a very good application prospect in power grid. To solve the
Jinfeng Wang, Tiantian Cao, Yufeng Dai, Siqi Xie, Zhu Liu, Dayi Li   +5 more
doaj   +1 more source

Violation of the `Zero-Force Theorem' in the time-dependent Krieger-Li-Iafrate approximation

, 2007
We demonstrate that the time-dependent Krieger-Li-Iafrate approximation in combination with the exchange-only functional violates the `Zero-Force Theorem'.
C. A. Ullrich, E. K. U. Gross, M. Petersilka, Michael Mundt, Paul-Gerhard Reinhard, Robert van Leeuwen, Stephan Kümmel, T. Grabo   +7 more
core   +2 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source