Results 1 to 10 of about 658,076 (295)

Comparative Study of AC and Positive and Negative DC Visual Corona for Sphere-Plane Gaps in Atmospheric Air

Energies, 2018
Due to the expansion of high-voltage direct current (HVDC) power systems, manufacturers of high-voltage (HV) hardware for alternating current (ac) applications are focusing their efforts towards the HVDC market. Because of the historical preponderance of
Jordi-Roger Riba, Andrea Morosini, Francesca Capelli   +2 more
doaj   +1 more source

Insertion loss measuring apparatus having transformer means connected across a pair of bolometers Patent [PDF]

, 1966
High impedance alternating current sensing transformer device between two bolometers for measuring insertion loss of test ...
Finnie, C. J., Schuster, D. M.
core   +1 more source

Nonlinear Response of a Kondo system: Direct and Alternating Tunneling Currents

, 1998
Non - equilibrium tunneling current of an Anderson impurity system subject to both constant and alternating electric fields is studied. A time - dependent Schrieffer - Wolff transformation maps the time - dependent Anderson Hamiltonian onto a Kondo one ...
A. C. Hewson, A. Kawabata, A. Schiller, D. C. Ralph, D. C. Ralph, D. Goldhaber-Gordon, I. K. Yanson, J. A. Appelbaum, J. Kondo, J. König, J. R. Schrieffer, L. P. Kouwenhoven, M. H. Hettler, N. S. Wingreen, N. Sivan, P. Coleman, P. Fulde, R. J. P. Keijsers, R. K. Tien, S. Gregory, S. Hershfield, S. M. Cronenwett, T. H. Oosterkamp, T. K. Ng, T. K. Ng, Y. Avishai, Y. Goldin, Y. Goldin, Y. Meir   +28 more
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Brain-state determines learning improvements after transcranial alternating-current stimulation to frontal cortex [PDF]

, 2018
Published in final edited form as: Brain Stimul. 2018 ; 11(4): 723–726. doi:10.1016/j.brs.2018.02.008BACKGROUND Theories of executive control propose that communication between medial frontal cortex (MFC) and lateral prefrontal cortex (lPFC) is ...
Deng, Yuqi, Nguyen, John, Reinhart, Robert M.G.   +2 more
core   +1 more source

Protection Criteria of Cathodically Protected Pipelines Under AC Interference

Corrosion and Materials Degradation
Carbon steel structures employed to convey hydrocarbons and other dangerous fluids, such as oil or flammable liquids, are equipped with degradation prevention systems, which typically consist of a cathodic protection (CP) system combined with an external
Luca Paterlini, Andrea Marinelli, Andrea Brenna, Marco Ormellese   +3 more
doaj   +1 more source

High-field vortices in Josephson junctions with alternating critical current density

, 2007
We study long Josephson junctions with the critical current density alternating along the junction. New equilibrium states, which we call the field synchronized or FS states, are shown to exist if the applied field is from narrow intervals centered ...
A. I. Buzdin, L. N. Bulaevskii, M. Tinkham, Maayan Moshe, N. F. Pedersen, R. G. Mints, V. V. Arnold   +6 more
core   +1 more source

AC-Induced Corrosion of Cathodically Protected Pipelines: Experimental Study and Probabilistic Modeling

Corrosion and Materials Degradation
This study investigated the effects of alternating current (AC) interference on pipeline steel under cathodic protection (CP). In a simulated solution, real-time electrochemical measurements and corrosion rate analysis were conducted on two steel types ...
Yuhan Su, Emadoddin Majdabadi Farahani, Qindan Huang, Qixin Zhou   +3 more
doaj   +1 more source

Device Simulation on GaN‐LED Operating in Noncarrier Injection Mode for Performance Improvement by Enhancing the Tunneling Effect in Multiquantum Wells

Advanced Electronic Materials, 2023
Noncarrier injection (NCI) operation mode is an emerging driving mode for nanoscale light‐emitting diodes (LEDs) for application in nanopixel light‐emitting displays. However, the luminescence intensity of the NCI‐LED with traditional epitaxial structure
Wenhao Li, Kun Wang, Yitao Liao, Jiawei Guo, Yiwei Shen, Junlong Li, Hao Su, Xiongtu Zhou, Yongai Zhang, Lan Yang, Tailiang Guo, Chaoxing Wu   +11 more
doaj   +1 more source

The thermal conductivity of alternating spin chains

, 2010
We study a class of integrable alternating (S1,S2) quantum spin chains with critical ground state properties. Our main result is the description of the thermal Drude weight of the one-dimensional alternating spin chain as a function of temperature.
A Klümper, Aladim S R, Feyerherm R, G A P Ribeiro, Hlubek N Ribeiro P Saint-Martin R Revcolevschi A Roth G Behr G Bchner B Hess C, N Crampé, Sakai K, Sakai K, Suzuki J, Zotos X   +9 more
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Linear and nonlinear isotherm modeling of nitrate removal from aqueous solution by alternating current electrocoagulation

International Journal of Environmental Health Engineering, 2019
Aims: Nitrates in drinking water which may come from nitrogen fertilizers applied to crops are a potential health risk. The present study was conducted to investigate the application of alternating current (AC) in electrocoagulation (EC) process for ...
Mina Rostami, Hamidreza Pourzamani, Bijan Bina, Hossein Karimi   +3 more
doaj   +1 more source