Results 31 to 40 of about 164,762 (248)

Heterogeneous Nanopore Arrays – Selective Modification of Nanopores Embedded in a Membrane

Advanced Materials, EarlyView.
Biological processes rely on the concerted action of channels with different functionalities embedded in the same membrane. Inspired by nature, heterogeneous nanopore arrays are prepared where two nanopores are connected in parallel and function as two different elements of an ionic circuit: a diode and a resistor.
Ethan Cao, Zuzanna S. Siwy
wiley   +1 more source

The effects of a satellite power system on ground-based astronomy [PDF]

, 1980
The effects of power transmission from the solar power satellite and of radiation from the ground based rectennas on radio astronomy, radar astronomy, and optical astronomy are discussed.
Thompson, A. R.
core   +1 more source

Glaphene: A Hybridization of 2D Silica Glass and Graphene

Advanced Materials, EarlyView.
‘Glaphene’, a novel hybrid material combining 2D silica glass and graphene, is synthesized via a scalable liquid precursor‐based vapor‐phase growth. This study reveals interlayer hybridization beyond van der Waals interactions, leading to emergent semiconducting behavior.
Sathvik Ajay Iyengar, Manoj Tripathi, Anchal Srivastava, Abhijit Biswas, Tia Gray, Mauricio Terrones, Alan B. Dalton, Marcos A. Pimenta, Robert Vajtai, Vincent Meunier, Pulickel M. Ajayan   +10 more
wiley   +1 more source

Mechanical Resonant Sensing of Spin Texture Dynamics in a 2D Antiferromagnet

Advanced Materials, EarlyView.
Detection of antiferromagnetic spin texture in a 2D magnetic crystal is achieved through nanomechanical resonators at radio frequencies. Sharp magnetic transitions that lead to abrupt changes in mechanical linear and nonlinear responses are assigned to antiferromagnetic domain motions.
S M Enamul Hoque Yousuf, Yunong Wang, Shreyas Ramachandran, John Koptur‐Palenchar, Chiara Tarantini, Li Xiang, Stephen McGill, Dmitry Smirnov, Elton J. G. Santos, Philip X.‐L. Feng, Xiao‐Xiao Zhang   +10 more
wiley   +1 more source

Next‐Generation Image Sensors Based on Low‐Dimensional Semiconductor Materials

Advanced Materials, EarlyView.
Low‐dimensional semiconductor materials are promising candidates for photosensitive components in next‐generation image sensors. This review offers a thorough and timely examination of novel image sensors, covering their working principles, intriguing materials categorized into four main groups, and advanced imaging applications.
Yunxia Hu, Zhaoli Gao, Zhengtang Luo, Liang An   +3 more
wiley   +1 more source

Radio astronomy in Africa: the case of Ghana [PDF]

, 2015
South Africa has played a leading role in radio astronomy in Africa with the Hartebeesthoek Radio Astronomy Observatory (HartRAO). It continues to make strides with the current seven-dish MeerKAT precursor array (KAT-7), leading to the 64-dish MeerKAT ...
Asabere, Bernard Duah, Gaylard, Michael, Horellou, Cathy, Jarrett, Thomas, Winkler, Hartmut   +4 more
core   +1 more source

Flexible Selenium Nanowires with Tuneable Electronic Bandgaps

Advanced Materials, EarlyView.
Nanotubes serve as effective test tubes for selenium nanowires, as their diameter precisely controls the width of the nanowires and the Se─Se bonding, resulting in a variety of different structures. An electron beam can be used to modify the nanotubes, allowing real‐time observation of the nanowire extrusion process. Additionally, optically transparent
William J. Cull, Quentin M. Ramasse, Johannes Biskupek, Graham A. Rance, Ian Cardillo‐Zallo, Benjamin L. Weare, Michael W. Fay, R. Roy Whitney, Lyndsey R. Scammell, Jesum Alves Fernandes, Ute Kaiser, Amalia Patanè, Andrei N. Khlobystov   +12 more
wiley   +1 more source

The Murchison Widefield Array [PDF]

, 2010
It is shown that the excellent Murchison Radio-astronomy Observatory site allows the Murchison Widefield Array to employ a simple RFI blanking scheme and still calibrate visibilities and form images in the FM radio band.
Arcus, W., Benkevitch, L., Bernardi, Gianni, Bowman, J. D., Briggs, F. H., Bunton, J. D., Burns, S., Cappallo, R. J., Clark, Michael A., Corey, B. E., Dal, Kevin, de Oliveira-Costa, A., Derome, M. F., Desouza, L., Doeleman, S. S., Edgar, Richard G., Emrich, D., Gleadow, Stewart J., Glossop, M., Goeke, R., Greenhill, Lincoln J., Hazelton, B., Herne, D. E., Hewitt, J. N., Kamini, P. A., Kaplan, D. L., Kasper, J. C., Kincaid, B. B., Kocz, J., Kowald, E., Kratzenberg, E., Krishna, M. R. Gopala, Kumar, D., Lonsdale, C. J., Lynch, M. J., Madhavi, S., Matejek, M., McWhirter, S. R., Mitchell, Daniel A., Morales, M. F., Morgan, E., Oberoi, D., Ord, Stephen M., Pathikulangara, J., Pfister, Hanspeter, Prabu, T., Rogers, A., Salah, J. E., Sault, R. J., Shankar, N. Udaya, Srivani, K. S., Stevens, J., Tingay, S. J., Vaccarella, A., Waterson, M., Wayth, Randall B., Webster, R. L., Whitney, A. R., Williams, A., Williams, C.   +59 more
core   +1 more source

Radio Astronomy [PDF]

, 1982
Contains reports on eleven research projects.National Science Foundation (Grant AST79-25075)National Science Foundation (Grant AST79-20984)National Science Foundation (Grant AST79-19553)U.S.
Ali, Ali D. S., Barrett, Alan H., Burke, Bernard F., Garnavich, Peter M., Ghosh, Biswa, Jin, Jian-sheng, Johnson, Timothy L., Komichak, Michael J., Lamb, R. H., Lang, Jeffrey H., Myers, Philip C., Nathan, S. Krishna, Rosenkranz, Philip W., Shao, Michael, Shih, Shih-Ming, Staelin, David H., Sulecki, Joan M., Yam, Yeung   +17 more
core   +1 more source

Development and Optimization of Micro‐Nanotopographical Platforms for Surface Enhanced Raman Scattering Biomolecular Detection

Advanced Materials Interfaces, EarlyView.
Lithographically defined concentric micro‐ and nanostructures systematically designed and fabricated as reproducible arrays for Surface‐enhanced Raman spectroscopy applications. Abstract Topologically designed micro‐ and nanostructured surface‐enhanced Raman scattering (SERS) substrates propel the advancements of innovative applications, including ...
David Femi Odetade, Jonathan J. S. Rickard, Pola Goldberg Oppenheimer   +2 more
wiley   +1 more source