Results 21 to 30 of about 123,093 (174)

Supramolecular Gels as Active Tools for Reaction Engineering

Angewandte Chemie, EarlyView.
The unique combination of environments within gels, self‐assembled from low‐molecular‐weight gelators, offers the ability to control reactivity in new ways, achieving unique reaction outcomes, leading to the emerging concept of supramolecular gels as nanoreactors. Smart chemical engineering methods enable the use of such gels to fabricate materials and
David K. Smith
wiley   +2 more sources

Digital receivers for low-frequency radio telescopes UTR-2, URAN, GURT

, 2016
This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations. This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations.
Bortsov, V., Brazhenko, A., Bubnov, I., Bulakh, E., Coffre, A., Denis, L., Dorovskyy, V., Fischer, G., Grießmeier, J. -M., Ivantyshin, O., Kalinichenko, N., Koliadin, V., Konovalenko, A., Koshovyy, V., Koval, A., Kozhin, R., Kravtsov, A., Kravtsov, I., Kuzin, A., Kvasov, G., Lecacheux, A., Lisachenko, V., Litvinenko, G., Lozinsky, A., Melnik, V., Mukha, D., Mylostna, K., Panchenko, M., Plakhov, M., Pylaev, O., Reznichenko, A., Rucker, H. O., Ryabov, V., Shepelev, V., Shevchuk, N., Shevtsova, A., Sidorchuk, M., Skoryk, A., Stanislavsky, A., Stepkin, S., Ulyanov, O., Vashchishin, R., Vasilenko, N., Vasilyev, A., Vasylieva, I., Vasylkivskyi, Y., Vavriv, D., Vinogradov, V., Volvach, Y., Yerin, S., Zakharenko, V., Zarka, P.   +51 more
core   +2 more sources

Dwingeloo – the golden radio telescope [PDF]

Astronomische Nachrichten, 2007
AbstractThe Dwingeloo 25‐m telesope, inaugurated in 1956, has played a major role in research for half a century. We trace its history back to its conception in 1944, and summarize its main achievements. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Richard G. Strom, Richard G. Strom, H. van Woerden   +2 more
openaire   +3 more sources

Toward Architected Microstructures Using Advanced Laser Beam Shaping in Laser Powder Bed Fusion of Ti‐6Al‐4V

Advanced Functional Materials, EarlyView.
This research applies advanced laser beam shaping (LCoS‐SLM) to fabricate the Ti‐6Al‐4V alloy via laser powder bed fusion. A tailored beam is used to prevent martensite formation and create a dual α+β microstructure by controlling cooling rates.
Reza Esmaeilzadeh, Jamasp Jhabvala, Lucas Schlenger, Mathijs van der Meer, Eric Boillat, Cyril Cayron, Amir Mohammad Jamili, Junfeng Xiao, Roland E. Logé   +8 more
wiley   +1 more source

Near‐Zero Thermal Expansion in Coordination Polymer Cd(1,2,4‐Triazole)2(H2PO4)2

Angewandte Chemie, EarlyView.
The structural dynamics and the chemical bonding origin of a volumetric near‐zero thermal expansion in a coordination polymer across 25 K to 400 K is studied using multi‐temperature X‐ray crystallography and X‐ray electron density analysis. The lattice expansion in the a and c directions is counteracted by contraction along b axis, caused by concerted ...
Sounak Sarkar, Bo Brummerstedt Iversen
wiley   +2 more sources

The ALMA radio telescope [PDF]

Proceedings of 2nd MCCT-SKADS Training School. Radio Astronomy: fundamentals and the new instruments — PoS(2nd MCCT-SKADS), 2009
University of Bordeaux, LAB & European ALMA Project Office, E SOE-mail:baudry@obs.u-bordeaux1.frThe Atacama Large Millimeter/submillimeter Array (ALMA) is an imaging radio telescope of upto 64 12-m antennas which can be moved to fixed stations across the Atacama plateau of northernChile to form antenna configurations extending from 150 m to a bout 15 km ...
openaire   +2 more sources

Structured Light Projection Using Image Guide Fibers for In Situ Photo‐biofabrication

Advanced Materials, EarlyView.
Light‐based biofabrication is typically performed with single wavelength light sources and within benchtop devices. This work demonstrates FaSt‐Light (Fiber‐assisted Structured Light) as a new approach to achieve multiwavelength image projection using flexible image guide fibers, which enables a variety of applications for in situ biofabrication ...
Parth Chansoria, Michael Winkelbauer, Shipin Zhang, Jakub Janiak, Hao Liu, Dimitar Boev, Andrea Morandi, Rachel Grange, Marcy Zenobi‐Wong   +8 more
wiley   +1 more source

The Allen Telescope Array: The First Widefield, Panchromatic, Snapshot Radio Camera for Radio Astronomy and SETI [PDF]

, 2009
The first 42 elements of the Allen Telescope Array (ATA-42) are beginning to deliver data at the Hat Creek Radio Observatory in Northern California. Scientists and engineers are actively exploiting all of the flexibility designed into this innovative ...
Ackermann, Robert, Atkinson, Shannon, Backer, Don, Backus, Peter, Barott, William, Blitz, Leo, Bock, Douglas C.-J., Bower, Geoffrey C., Bradford, Tucker, Cheng, Calvin, Cork, Chris, Croft, Steve, Davis, Michael, DeBoer, Dave, Dexter, Matt, Dreher, John, Engargiola, Greg, Fields, Ed, Fleming, Matt, Forster, James, Gutierrez-Kraybill, Colby, Harp, Gerry, Heiles, Carl, Helfer, Tamara, Jordan, Jane, Jorgensen, Susanne, Keating, Garrett, Kilsdonk, Tom, Lugten, John, MacMahon, Dave, Milgrome, Oren, Pierson, Tom, Randall, Karen, Ross, John, Shostak, Seth, Tarter, Jill, Thornton, Douglas, Urry, Lynn, van Leeuwen, Joeri, Vitouchkine, Artyom, Wadefalk, Niklas, Weinreb, Sander, Welch, Jack, Wertheimer, Dan, Williams, Peter H., Wright, Melvin   +45 more
core   +2 more sources

Hybrid Electroluminescence Device for On‐Demand Single Photon Generation at Room Temperature

Advanced Optical Materials, EarlyView.
New type of electroluminescent device based on hBN nanocrystals deposited on a GaN laser diode displays electrically driven emission of single photons at room temperature. Low g2(0) autocorrelation function values are achieved of < 0.2 for continuous driving and < 0.4 for on‐demand single‐photon emission.
Aleksander Rodek, Mateusz Hajdel, Kacper Oreszczuk, Anna Kafar, Muhammed Aktas, Łucja Marona, Marek Potemski, Czeslaw Skierbiszewski, Piotr Kossacki   +8 more
wiley   +1 more source

J1420--0545: The radio galaxy larger than 3C236

, 2008
We report the discovery of the largest giant radio galaxy, J1420-0545: a FR type II radio source with an angular size of 17.4' identified with an optical galaxy at z=0.3067. Thus, the projected linear size of the radio structure is 4.69 Mpc (if we assume
Alexander P., D. J. Saikia, D. Kozieł‐Wierzbowska, Falle S. A. E. G., J. Machalski, Kaiser C. R., Kaiser C. R., Leahy J. P., Liu R., M. Jamrozy, Machalski J., Murgia M., Nath B. B., Scheuer P. A. G., Schindler S.   +14 more
core   +1 more source