Results 31 to 40 of about 4,315,310 (343)

Clustering of Radio Galaxies and Quasars [PDF]

, 2009
We compute the cross-correlation between a sample of 14,000 radio-loud AGN (RLAGN) with redshifts between 0.4 and 0.8 selected from the Sloan Digital Sky Survey and a reference sample of 1.2 million luminous red galaxies in the same redshift range.
Antonucci, Barr, Barthel, Barthel, Becker, Best, Best, Best, Blanton, Boroson, Bower, Bruzual, Böhringer, Cannon, Cheng Li, Coil, Collister, Collister, Condon, Croom, Croton, Davis, DaÂngela, Donoso, Dunlop, E. Donoso, Fabian, Fanaroff, Franceschini, G. Kauffmann, Hamilton, Hardcastle, Hardcastle, Hardcastle, Heckman, Hickox, Hill, Hine, Ho, Häring, Jackson, Kauffmann, Kauffmann, Kellermann, Lacy, Laing, Lawrence, Ledlow, Li, Li, Li, Mandelbaum, McNamara, Merloni, Metacalf, Miley, P. N. Best, Padmanabhan, Peebles, Pentericci, Porciani, Prestage, Richards, Schneider, Shen, Shen, Sheth, Simpson, Smith, Snellen, Somerville, Stocke, Stoughton, T. M. Heckman, Urry, Wake, Wold, Yates, York   +78 more
core   +1 more source

Digital radio-over-fiber system with multi-pulse Manchester encoding-assisted delta-sigma modulation.

Optics Express, 2017
Two ∆Σ-modulated digital radio-over-fiber (DRoF) transmission systems that employ a multi-pulse Manchester encoder are proposed and experimentally evaluated.
Seunghyun Jang, Bonghyuk Park, Songcheol Hong   +2 more
semanticscholar   +1 more source

Going digital in agriculture: how radio and SMS can scale-up smallholder participation in legume-based sustainable agricultural intensification practices and technologies in Tanzania

International Journal of Agricultural Sustainability, 2020
In 2016, a study was conducted in Tanzania to assess the impact of radio and SMS in scaling-up smallholder participation in legume-based sustainable agricultural intensification (SAI) practices and technologies.
S. Silvestri, Musebe Richard, Baars Edward, Ganatra Dharmesh, Romney Dannie   +4 more
semanticscholar   +1 more source

Multi-sensing node convolution fusion identity recognition algorithm for radio digital twin

Tongxin xuebao, 2023
Electromagnetic space is an important link to empower and coordinate sea, land, air, space and network.Electromagnetic target recognition provides important radio target identity information for the twin construction of electromagnetic space, so that it ...
Guofeng WEI, Guoru DING, Yutao JIAO, Yitao XU, Daoxing GUO, Peng TANG   +5 more
doaj   +2 more sources

La radio digital

Chasqui, 2015
La radio digital es un producto de la llamada convergencia digital. Las nuevas tecnologías interconectadas permiten la aparición de nuevos modos de audiencia y la implementación de herramientas versátiles.
Carlos Eduardo Cortés S.
doaj   +1 more source

An Examination of the Optical Substructure of Galaxy Clusters Hosting Radio Sources

, 2013
Using radio sources from the Faint Images of the Radio Sky at Twenty-cm (FIRST) survey, and optical counterparts in the Sloan Digital Sky Survey (SDSS), we have identified a large number of galaxy clusters.
Blanton, Elizabeth L., Wing, Joshua D.
core   +1 more source

Uporedni pregled standarda za digitalne tranking sisteme funkcionalnih mobilnih radio-veza / Comparative analysis of the standards for digital trunked mobile radio systems [PDF]

Vojnotehnički Glasnik, 2002
Za izgradnju funkcionalnih sistema mobilnih radio-veza danas se koriste tranking sistemi analognih i digitalnih mobilnih radio-veza. Zbog niza prednosti, tranking sistemi digitalnih mobilnih radio-veza sve vise potiskuju analogne tranking sisteme ...
Slađan Svrzić , Dragan Ćosović
doaj   +1 more source

Rydberg-atom-based digital communication using a continuously tunable radio-frequency carrier. [PDF]

Optics Express, 2018
Up to now, the measurement of radio-frequency (RF) electric field achieved using the electromagnetically-induced transparency (EIT) of Rydberg atoms has proved to be of high-sensitivity and shows a potential to produce a promising atomic RF receiver at ...
Zhenfei Song, Hongping Liu, Xiaochi Liu, Wanfeng Zhang, Haiyang Zou, Jie Zhang, J. Qu   +6 more
semanticscholar   +1 more source

MANAJEMEN RANTAI PASOK: IMPLEMENTASI DAN EFEKTIVITAS MEDIA SOSIAL DALAM PENGELOLAAN BISNIS RADIO (Studi pada Radio 89.6FM IRadio Jakarta)

MIX: Jurnal Ilmiah Manajemen, 2019
The sustainability of industrial business depends on the ability of organizations to manage the needs and desires of consumers so that the products produced become part of consumer life.
Ahmad Mulyana
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source