Results 81 to 90 of about 1,075,155 (309)

The Bifactor Model Fits Better Than the Higher-Order Model in More Than 90% of Comparisons for Mental Abilities Test Batteries

Journal of Intelligence, 2017
The factor structure of mental abilities has most often been depicted using a higher-order model. Under this model, general mental ability (g) is placed at the top of a pyramid, with “loading” arrows going from it to the other factors of intelligence ...
Jeffrey Cucina, Kevin Byle
doaj   +1 more source

Adaptive DC stabilizer with reduced DC fault current for active distribution power system application [PDF]

, 2016
This paper takes a systematic view on the control and protection of medium power DC networks in an active distribution power system considering fault current limiting, system control and converter design.
Chen, Dong, Xu, Lie, Yu, James
core   +2 more sources

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Fault detection and location in DC systems from initial di/dt measurement [PDF]

, 2012
The use of DC for primary power distribution has the potential to bring significant design, cost and efficiency benefits to a range of power transmission and distribution applications.
Burt, Graeme, Fletcher, Steven, Galloway, Stuart, Norman, Patrick   +3 more
core  

Protection system considerations for DC distributed electrical propulsion systems [PDF]

, 2015
Distributed electrical propulsion for aircraft, also known as turbo-electric distributed propulsion (TeDP), will require a complex electrical power system which can deliver power to multiple propulsor motors from gas turbine driven generators.
Armstrong, M., Bollman, A., Burt, G., Davies, K., Galloway, S., Jones, C. E., Norman, P.   +6 more
core   +1 more source

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

Advanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan, Joe Sunny, Tamer Karaman, Reshma Peremadathil‐Pradeep, Emily Darwin, Felix Büttner, Dieter Suess, Hans Josef Hug, Manfred Albrecht   +8 more
wiley   +1 more source

Analysis for DC transmission line harmonics originated from AC transformer inrush current and improved method for DC harmonic protection

The Journal of Engineering, 2019
Large-scale electricity has fed into Central and Southern China through DC transmission lines. Any one of the DC transmission lines suddenly outage will result in a large proportion of power-shortage.
Wenbin Cao, Xinaggen Yin, Xinaggen Yin, Xuanwei Qi, Yuxue Wang, Wei Liu, Yuanlin Pan   +6 more
doaj   +1 more source

Design of a DC overcurrent fault detection and protection scheme for DC collectors of a photovoltaic plant [PDF]

, 2017
: Faults in the DC collector circuits of a photovoltaic plant are a cause for major concern due to the damage they may cause to equipment. Fault protection is required for ground faults, line-to-line faults and arc faults.
Bokoro, P., Holland, I., Ndlovu, E., Paul, B.   +3 more
core  

High Voltage Coil Current Sensor for DC-DC Converters Employing DDCC [PDF]

, 2015
Current sensor is an integral part of every switching converter. It is used for over-current protection, regulation and in case of multiphase converters for balancing.
Drinovsky, M., Hospodka, J.
core   +2 more sources