Results 61 to 70 of about 1,001,893 (298)

News Improved: NPR's Transition from Public Radio to Public Media [PDF]

, 2011
In 2007, National Public Radio adopted a multiyear plan to increase the organization's digital footprint and begin transforming itself from a public radio company to a public media company.

core  

Radio Jets in Galaxies with Actively Accreting Black Holes: new insights from the SDSS

, 2007
The majority of nearby radio-loud AGN are found in massive, old elliptical galaxies with weak emission lines. At high redshifts,however, most known radio AGN have strong emission lines.
Allen, Baldwin, Balogh, Barthel, Baum, Baum, Becker, Best, Best, Best, Best, Best, Birnboim, Birzan, Bower, Brinchmann, Bruzual, Böhringer, Charlot, Churazov, Clewley, Condon, Croston, Croton, Di Matteo, Dressler, Dunlop, Ellingson, Fabian, Fabian, Fabian, Fanaroff, Forman, Gallimore, Govoni, Guinevere Kauffmann, Hardcastle, Hardcastle, Heckman, Hine, Hopkins, Ivezić, Kaiser, Kauffmann, Kauffmann, Kauffmann, Kereš, Laing, Laing, Ledlow, Li, McCarthy, McLure, McLure, Nandra, Nesvadba, Pentericci, Philip N. Best, Rawlings, Serjeant, Sijacki, Smith, Tadhunter, Tadhunter, Tadhunter, Timothy M. Heckman, Tremaine, Tremonti, Wild, Willott, Worthey, Yee, Yun, Zirbel, Zirm   +74 more
core   +1 more source

Blazars in the early Universe [PDF]

, 2011
We investigate the relative occurrence of radio--loud and radio-quiet quasars in the first billion years of the Universe, powered by black holes heavier than one billion solar masses. We consider the sample of high-redshfit blazars detected in the hard X-
Abdo, Ajello, Baes, Becker, Bernardi, Bryan, Croton, F. Haardt, Ferrarese, G. Ghisellini, Ghisellini, Ghisellini, Ghisellini, Gültekin, Haiman, Hook, Hopkins, Häring, Jiang, Kormendy, Kormendy, Kurk, Lauer, Lauer, M. Volonteri, Marconi, Marconi, McGreer, Merloni, Pizzella, R. Della Ceca, Rhook, Richards, Richards, Romani, Schneider, Shakura, Shen, Sheth, Treister, Tremaine, Tundo, Volonteri, Volonteri, Willott, Worsley, Worsley, Wyithe, Yuan   +48 more
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Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Dakwah Media Radio Jakarta Islami Center (JIC) di Era Digital

Palita: Journal of Social - Religion Research
The development and advancement of today's technological world have helped overcome various obstacles in life.  In the digital era, the fulfilment of information needs is a necessity that cannot be denied.
Moh. Amir Choiri, Pipin Yosepin
doaj   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Baseband Transceiver Design of a High Definition Radio FM System Using Joint Theoretical Analysis and FPGA Implementation

International Journal of Antennas and Propagation, 2014
Advances in wireless communications have enabled various technologies for wireless digital communication. In the field of digital radio broadcasting, several specifications have been proposed, such as Eureka-147 and digital radio mondiale (DRM).
Chien-Sheng Chen, Chyuan-Der Lu, Ho-Nien Shou, Le-Wei Lin   +3 more
doaj   +1 more source

Antimultipath communication by injecting tone into null in signal spectrum [PDF]

, 1987
A transmitter for digital radio communication creates a null by balanced encoding of data modulated on an RF carrier, and inserts a calibration tone within the null. This is accomplished by having the calibration tone coincide in phase and frequency with
Davarian, Faramaz
core   +1 more source

Air Shower Measurements with the LOPES Radio Antenna Array [PDF]

, 2008
LOPES is set up at the location of the KASCADE-Grande extensive air shower experiment in Karlsruhe, Germany and aims to measure and investigate radio pulses from Extensive Air Showers.
A. Chiavassa, A. Haungs, A. Horneffer, A. Nigl, A. Saftoiu, A. Schmidt, A. Weindl, Allan, Antoni, Apel, Ardouin, B. Mitrica, Buitink, C. Grupen, C. Morello, D. Fuhrmann, D. Heck, D. Kang, D. Kickelbick, E. Cantoni, F. Badea, F. Cossavella, F. Di Pierro, F. Schröder, Falcke, G. Navarra, G. Toma, G.C. Trinchero, H. Bozdog, H. Falcke, H. Gemmeke, H. Rebel, H. Schieler, H. Ulrich, H.J. Mathes, H.J. Mayer, Haungs, Haungs, Horneffer, Huege, I.M. Brancus, J. Auffenberg, J. Blümer, J. Kuijpers, J. Milke, J. Oehlschläger, J. Rautenberg, J. Wochele, J. Zabierowski, J.A. Zensus, J.C. Arteaga, J.R. Hörandel, K. Bekk, K. Daumiller, K. Singh, K.-H. Kampert, L. Bähren, M. Bertaina, M. Brüggemann, M. Finger, M. Petcu, M. Roth, M. Stümpert, M. Wommer, Navarra, Nehls, Nigl, Nigl, O. Krömer, O. Sima, P. Buchholz, P. Doll, P. Łuczak, P.G. Isar, P.L. Biermann, P.L. Ghia, Petrovic, R. Engel, R. Glasstetter, S. Buitink, S. Lafebre, S. Nehls, S. Over, T. Asch, T. Huege, T. Pierog, V. de Souza, W. Walkowiak, W.D. Apel, Y. Kolotaev   +89 more
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3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source