Results 51 to 60 of about 1,151,601 (306)

Bias and temperature dependence of the 0.7 conductance anomaly in Quantum Point Contacts

, 2000
The 0.7 (2e^2/h) conductance anomaly is studied in strongly confined, etched GaAs/GaAlAs quantum point contacts, by measuring the differential conductance as a function of source-drain and gate bias as well as a function of temperature. We investigate in
A. E. Hansen, A. Forchel, A. Kristensen, A. Kristensen, A. Kristensen, A. Yacobi, B. Spivak, B.E. Kane, B.J. van Wees, C. B. Sørensen, C. J. Marckmann, C.-K. Wang, C.-T. Liang, D.A. Wharam, F. Beuscher, H. Bruus, J. B. Jensen, J. Nygård, K.J. Thomas, K.J. Thomas, K.J. Thomas, L. Martin-Moreno, L.I. Glazman, L.P. Kouwenhoven, M. Michel, N.K. Patel, N.K. Patel, P. E. Lindelof, R.D. Tscheuschner, S. Tarucha   +29 more
core   +1 more source

Random barrier double-well model for resistive switching in tunnel barriers [PDF]

, 2011
The resistive switching phenomenon in MgO-based tunnel junctions is attributed to the effect of charged defects inside the barrier. The presence of electron traps in the MgO barrier, that can be filled and emptied, locally modifies the conductance of the
Arabski, Jacek, Bertin, Eric, Bowen, Martin, DaCosta, Victor, Doudin, Bernard, Halley, David, Henry, Yves, Majjad, Hicham, Najjari, Nabil   +8 more
core   +4 more sources

Parent Quality of Life at Two Years Following Their Child's Completion of Acute Lymphoblastic Leukemia Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra, Maria McCarthy, Michael Takagi, Cinzia De Luca   +3 more
wiley   +1 more source

Review of transient control strategies for grid-forming converters under grid voltage sag conditions

电力工程技术
As a large amount of renewable energy is integrated into the grid via power electronic converters，the power system is faced with challenges，such as reduced inertia，diminished disturbance resistance，and declining transient support capabilities.
Yuxuan LIN, Wei LI, Ling ZHU, Chong REN
doaj   +1 more source

Terahertz photoresponse of a quantum Hall edge-channel diode

, 2009
The Teraherz (THz) photoresponse of a two-dimensional electron gas in the quantum Hall regime is investigated. We use a sample structure which is topologically equivalent to a Corbino geometry combined with a cross-gate technique.
Axel Lorke, Christian Notthoff, Detlef Heitmann, E. V. Deviatov, Kevin Rachor, S. M. Sze   +5 more
core   +1 more source

Hinge solitons in three-dimensional second-order topological insulators

, 2020
A second-order topological insulator in three dimensions refers to a topological insulator with gapless states localized on the hinges, which is a generalization of a traditional topological insulator with gapless states localized on the surfaces.
Dai, Ning, Tao, Yu-Liang, Xu, Yong, Yang, Yan-Bin, Zeng, Qi-Bo   +4 more
core   +1 more source

Reactive current injection protocol for low-power rating distributed generation sources under voltage sags [PDF]

, 2015
Voltage sags are one of the main problems in transmission and distribution networks. This study proposes a voltage support control scheme for grid-connected low-power rating inverters under voltage sags.
Camacho Santiago, Antonio, Castilla Fernández, Miguel, García de Vicuña Muñoz de la Nava, José Luis, Hoz Casas, Jordi de la, Miret Tomàs, Jaume   +4 more
core   +2 more sources

Voltage Support With PV Inverters in Low-Voltage Distribution Networks: An Overview

IEEE Journal of Emerging and Selected Topics in Power Electronics
Large solar photovoltaic (PV) penetration using inverters in low-voltage (LV) distribution networks may pose several challenges, such as reverse power flow and voltage rise situations. These challenges will eventually force grid operators to carry out grid reinforcement to ensure continued safe and reliable operations.
Yonghao Gui, Karthikeyan Nainar, Jan Dimon Bendtsen, Nicole Diewald, Florin Iov, Yongheng Yang, Frede Blaabjerg, Yaosuo Xue, Jianzhe Liu, Tianqi Hong, Jakob Stoustrup   +10 more
openaire   +2 more sources

Cognitive Functioning in Vorinostat‐Treated Pediatric and Young Adult Patients Over the First 180 Days After Hematopoietic Stem Cell Transplant

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Cognitive and psychological difficulties could negatively interfere with treatment adherence and quality of life before and after hematopoietic stem cell transplant (HSCT). Methods to mitigate these changes may have positive effects on treatment success.
Kristen L. Votruba, Michelle Rozwadowski, Thomas Braun, April Rahrig, Edward Peres, Kirsten M. Williams, Vanessa Fabrizio, Julie‐An Talano, Carrie L. Kitko, Nicolas Parnell, Pavan Reddy, Sung Won Choi   +11 more
wiley   +1 more source

Research on Optimal Voltage Control of Distribution Network with the Participation of EVs and PVs

Applied Sciences, 2023
With the accelerating penetration of photovoltaics (PVs) and electric vehicles (EVs), distribution networks face the risks of voltage violations and fluctuations.
Yu Zhou, Fan Gao, Zhen Zhang, Shuangshuang Zhao, Xiao Xu, Haoge Meng, Hui Gao   +6 more
doaj   +1 more source