Results 21 to 30 of about 191,872 (232)

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Achieving Ultra-Low Latency in 5G Millimeter Wave Cellular Networks

, 2016
The IMT 2020 requirements of 20 Gbps peak data rate and 1 millisecond latency present significant engineering challenges for the design of 5G cellular systems.
Dutta, Sourjya, Ford, Russell, Mezzavilla, Marco, Rangan, Sundeep, Zhang, Menglei, Zorzi, Michele   +5 more
core   +1 more source

‘Oxygen Bound to Magnesium’ as High Voltage Redox Center Causes Sloping of the Potential Profile in Mg‐Doped Layered Oxides for Na‐Ion Batteries

Advanced Functional Materials, EarlyView.
Na‐ion batteries ‐ Impact of doping on the oxygen redox: The sloping potential of NaMg0.1Ni0.4Mn0.5O2 above 4.0 V is caused by a new redox center (arising from the ‘O bound to Mg’), having a higher potential but being more irreversible compared to the ‘O bound to Ni’.
Yongchun Li, Konstantin Köster, Katherine A. Mazzio, Yanan Sun, Annica I. Freytag, Deniz Wong, Christian Schulz, Götz Schuck, Volodymyr Baran, Alba San Jose Mendez, Marcin Zając, Payam Kaghazchi, Philipp Adelhelm   +12 more
wiley   +1 more source

Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems

Wasit Journal of Engineering Sciences
The multi-input-multi-output-antenna Scheme is regarded as the most promising method for next-generation wireless communication networks that employ millimeter-wave (mm-wave) frequencies and enable them to have a large information throughput.
Haider Salih Al Ammar , Ismail Hburi
doaj   +1 more source

Development of a dc-ac power conditioner for wind generator by using neural network [PDF]

, 2011
This project present of development single phase DC-AC converter for wind generator application. The mathematical model of the wind generator and Artificial Neural Network control for DC-AC converter is derived.
Yonis Buswig, Yonis Mohammed
core  

Selective Charge Injection via Topological van der Waals Contacts for Barrier‐Free p‐Type TMD Transistors

Advanced Functional Materials, EarlyView.
 Topological van der Waals contacts represent a new class of electrodes for 2D semiconductors, enabling precise control of the Schottky barrier height (SBH) and contact resistance (RC) through interlayer distance and orbital hybridization engineering. In Se‐based transition metal dichalcogenides, these contacts achieve an ultralow SBH of 7 meV, RC of 0.
Soheil Ghods, Ho‐Chan Jang, Jun‐Hui Choi, Min Woo Kim, Hyunjin Lee, Tae‐Hoon Kim, Keun Heo, Hyung Jun Kwun, Taehun Lee, Yoon Kyeung Lee, Sang Hoon Lee, Seung‐Il Kim, Woonhyuk Baek, Sukang Bae, Ji‐Yun Moon, Jae‐Hyun Lee   +15 more
wiley   +1 more source

Studies of Ground Conductivity in the Territory of Alaska [PDF]

, 1958
The effective ground conductivity of Alaska has been determined by a comparison of experimental and theoretical field strengths. The experimental field strengths have been obtained by use of an airborne receiver, flown along radial paths from a large ...
Stanley, Glenn M.
core  

Toward End-to-End, Full-Stack 6G Terahertz Networks

, 2020
Recent evolutions in semiconductors have brought the terahertz band in the spotlight as an enabler for terabit-per-second communications in 6G networks.
Jornet, Josep, Melodia, Tommaso, Polese, Michele, Zorzi, Michele   +3 more
core   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

Advanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek, Yuxuan Zhang, Hyeondong Yang, Minyoung Kim, Pavlos P. Vlachos, Jeongok Choe, Bo‐Gyu Bok, Kejie Zhao, Han‐Wook Song, Min‐Seok Kim, Martin Byung‐Guk Jun, Sunghwan Lee   +11 more
wiley   +1 more source

Performance of the ARIANNA Hexagonal Radio Array [PDF]

, 2015
Installation of the ARIANNA Hexagonal Radio Array (HRA) on the Ross Ice Shelf of Antarctica has been completed. This detector serves as a pilot program to the ARIANNA neutrino telescope, which aims to measure the diffuse flux of very high energy ...
ARIANNA Collaboration, Barwick, S. W., Berg, E. C., Besson, D. Z., Binder, G., Binns, W. R., Boersma, D., Bose, R. G., Braun, D. L., Buckley, J. H., Bugaev, V., Buitink, S., Dookayka, K., Dowkontt, P. F., Duffin, T., Euler, S., Gerhardt, L., Gustafsson, L., Hallgren, A., Hanson, J. C., Israel, M. H., Kiryluk, J., Klein, S., Kleinfelder, S., Nelles, A., Niederhausen, H., Olevitch, M. A., Persichelli, C., Ratzlaff, K., Rauch, B. F., Reed, C., Roumi, M., Samanta, A., Simburger, G. E., Stezelberger, T., Tatar, J., Uggerhoj, U., Walker, J., Young, R.   +38 more
core   +1 more source