Results 31 to 40 of about 96,446 (228)

Cosmic Dawn and Epoch of Reionization Foreground Removal with the SKA [PDF]

, 2015
The exceptional sensitivity of the SKA will allow observations of the Cosmic Dawn and Epoch of Reionization (CD/EoR) in unprecedented detail, both spectrally and spatially. This wealth of information is buried under Galactic and extragalactic foregrounds,
Abdalla, Filipe B., Bernardi, Gianni, Bobin, Jérôme, Bonaldi, Anna, Chapman, Emma, Dulwich, Fred, Harker, Geraint, Jelić, Vibor, Mort, Benjamin, Santos, Mario, Starck, Jean-Luc   +10 more
core   +3 more sources

Constraining the epoch of reionization with the variance statistic: simulations of the LOFAR case [PDF]

, 2014
Several experiments are underway to detect the cosmic redshifted 21-cm signal from neutral hydrogen from the Epoch of Reionization (EoR). Due to their very low signal-to-noise ratio, these observations aim for a statistical detection of the signal by ...
Abdalla, Filipe B., Asad, Khan M. B., Bernardi, Gianni, Brentjens, Michiel A., Bus, Sander, Chapman, Emma, Ciardi, Benedetta, Daiboo, Soobash, de Bruyn, A. G., Fernandez, Elizabeth R., Ghosh, Abhik, Harker, Geraint, Jelić, Vibor, Jensen, Hannes, Kazemi, Sanaz, Koopmans, Léon V. E., Labropoulos, Panagiotis, Martinez, Oscar, Mellema, Garrelt, Mevius, Maaijke, Offringa, Andre. R., Pandey, Vishhambhar N., Patil, Ajinkya H., Schaye, Joop, Thomas, Rajat M., Vedantham, Harish K., Veligatla, Vamsikrishna, Wijnholds, Stefan J., Yatawatta, Sarod, Zaroubi, Saleem   +29 more
core   +3 more sources

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

Advanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He, Zhiqi Wang, Jiaqi Guan, Younan Xia   +3 more
wiley   +1 more source

A Study on the Mechanism of Urea-assisted Steam Flooding in Heavy Oil Reservoirs [PDF]

Journal of Petroleum Science and Technology, 2015
The Biqian-10 block, located in Henan Oilfield of Sinopic, contains many thin and interbedded reservoirs, which have been operated by cyclic steam stimulation for 20 years or more. Therefore, it is a challenge to implement the conventional steam flooding.
Changhua Yang, Yiqing Lin, Zhang Zhang, Ruijian Deng, Xinrong Wu, Baolun Niu, Zhaomin Li, Shaoran Ren   +7 more
doaj   +1 more source

Towards simulating and quantifying the light-cone EoR 21-cm signal

, 2017
The light-cone (LC) effect causes the Epoch of Reionization (EoR) 21-cm signal $T_{\rm b} (\hat{\bf{n}}, \nu)$ to evolve significantly along the line of sight (LoS) direction $\nu$.
Bharadwaj, Somnath, Datta, Kanan K., Mondal, Rajesh   +2 more
core   +1 more source

Characterizing Signal Loss in the 21 cm Reionization Power Spectrum: A Revised Study of PAPER-64 [PDF]

, 2018
The Epoch of Reionization (EoR) is an uncharted era in our Universe's history during which the birth of the first stars and galaxies led to the ionization of neutral hydrogen in the intergalactic medium.
Aguirre, James E., Ali, Zaki S., Bernardi, Gianni, Bradley, Richard F., Carilli, Chris L., Cheng, Carina, DeBoer, David R., Dexter, Matthew R., Dillon, Joshua S., Jacobs, Daniel C., Klima, Pat, Kohn, Saul A., Kolopanis, Matthew, Liu, Adrian, MacMahon, David H. E., Moore, David F., Nunhokee, Chuneeta D., Parsons, Aaron R., Pober, Jonathan C., Walbrugh, William P., Walker, Andre   +20 more
core   +2 more sources

Experimental Study on the Physical Performance and Flow Behavior of Decorated Polyacrylamide for Enhanced Oil Recovery

Energies, 2019
With the rapid growth of energy consumption, enhanced oil recovery (EOR) methods are continually emerging, the most effective and widely used was polymer flooding. However, the shortcomings were gradually exposed.
Shuang Liang, Yikun Liu, Shaoquan Hu, Anqi Shen, Qiannan Yu, Hua Yan, Mingxing Bai   +6 more
doaj   +1 more source

Observing the Epoch of Reionization with the Cosmic Microwave Background

, 2015
We review the observable consequences of the epoch of reionization (EoR) on the cosmic microwave background (CMB), and the resulting constraints on the EoR.
Reichardt, Christian L.
core   +1 more source

The effect of non-Gaussianity on error predictions for the Epoch of Reionization (EoR) 21-cm power spectrum [PDF]

, 2015
The Epoch of Reionization (EoR) 21-cm signal is expected to become increasingly non-Gaussian as reionization proceeds. We have used semi-numerical simulations to study how this affects the error predictions for the EoR 21-cm power spectrum.
Acharyya, Ayan, Bera, Apurba, Bharadwaj, Somnath, Majumdar, Suman, Mondal, Rajesh   +4 more
core   +1 more source

Investigating the mechanism of interfacial tension reduction through the combination of low-salinity water and bacteria

Scientific Reports
In the enhanced oil recovery (EOR) process, interfacial tension (IFT) has become a crucial factor because of its impact on the recovery of residual oil.
Arastoo Abdi, Behnam Ranjbar, Yousef Kazemzadeh, Farzaneh Aram, Masoud Riazi   +4 more
doaj   +1 more source