Results 61 to 70 of about 295,804 (281)

New Fe II energy levels from stellar spectra [PDF]

, 2010
The spectra of B-type and early A-type stars show numerous unidentified lines in the whole optical range, especially in the 5100 - 5400 A interval. Because Fe II transitions to high energy levels should be observed in this region, we used semiempirical ...
Adam, Biémont, Castelli, Castelli, Castelli, F. Castelli, Johansson, Johansson, Johansson, Kurucz, Kurucz, R. L. Kurucz, Rosberg, Sugar   +13 more
core   +2 more sources

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

Advanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng, Zhipeng Ma, Ming Zhang, Shujie Zhou, Varun Kundi, Priyank Vijaya Kumar, Wenyu Zhong, Yuwei Yang, Jitraporn Vongsvivut, Qinfen Gu, Xiaoxuan Luo, Lixue Jiang, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Activity Related Variations of High-Degree p-Mode Amplitude, Width and Energy in Solar Active Regions [PDF]

, 2013
We study the properties of high degree p-mode oscillations in flaring and dormant ARs and compare them with those in corresponding quiet regions (QRs) to find the association of mode parameters with magnetic and flare related activities.
Ambastha, A., Chae, J., Maurya, R. A.
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Age and metallicity gradients in fossil ellipticals [PDF]

, 2013
Fossil galaxy groups are speculated to be old and highly evolved systems of galaxies that formed early in the universe and had enough time to deplete their $L^{*}$ galaxies through successive mergers of member galaxies, building up one massive central ...
Eigenthaler, Paul, Zeilinger, Werner W.
core   +2 more sources

Engineering Bilayer Tandem Catalysts on Si‐Based Photocathodes for High‐performance CO2 Reduction to Produce Methane

Advanced Materials, EarlyView.
A Cu/Ag‐Cu bilayer tandem catalyst is designed for a pyramid‐structured p‐Si photocathode, creating multiple and functionally distinct interfaces tailored to specific reaction steps and intermediate stabilization. This Cu/Ag‐Cu‐decorated p‐Si photocathode exhibits both high photocurrent and good selectivity for photoelectrochemical CO2 reduction to CH4.
Hao Wu, Shenghe Si, Haitao Wang, Changlai Wang, Rongchi Dai, Jianuo Li, Shohei Fukaya, Zhenhua Pan, Yujie Xiong, Noritaka Usami, Koyo Norinaga, Yasuyoshi Kurokawa, Suchada Sirisomboonchai, Dong Liu, Qian Wang   +14 more
wiley   +1 more source

Identification of novel neutralizing determinants for protection against HCV

Hepatology, EarlyView., 2022
Identification of novel neutralizing determinants for protection against hepatitis C virus. Abstract Background and Aims HCV evasion of neutralizing antibodies (nAb) results in viral persistence and poses challenges to the development of an urgently needed vaccine.
Garazi P. Alzua, Anne F. Pihl, Anna Offersgaard, Rodrigo Velázquez‐Moctezuma, Carlos R. Duarte Hernandez, Elias H. Augestad, Ulrik Fahnøe, Christian K. Mathiesen, Henrik Krarup, Mansun Law, Jannick Prentoe, Jens Bukh, Judith M. Gottwein   +12 more
wiley   +1 more source

Search for the doubly charmed baryon Xi+cc [PDF]

, 2013
A search for the doubly charmed baryon Ξ+ cc in the decay mode Ξ+ cc→ Λ + c K−π + is performed with a data sample, corresponding to an integrated luminosity of 0.65 fb−1 , of pp collisions recorded at a centre-of-mass energy of 7 TeV.
Back, J. J., Craik, Daniel, Dossett, D., Gershon, T. J., HASH(0x55f513c0be20), Kreps, Michal, Latham, Thomas, Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Wallace, Charlotte, Whitehead, M. (Mark), Williams, M. P.   +13 more
core   +1 more source

Understanding and Circumventing Failure Mechanisms in Chalcogenide Optical Phase Change Material Ge2Sb2Se4Te

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Chalcogenide optical PCMs have gathered interest for their potential in compact, non‐volatile optics and photonics. Free‐space PCM metasurfaces require new considerations from phase change memory that need to be addressed for reliable scale‐up. Several failure mechanisms pertaining to free‐space PCM devices and layout methods are isolated to prevent ...
Cosmin Constantin Popescu, Kiumars Aryana, Brian Mills, Tae Woo Lee, Louis Martin‐Monier, Luigi Ranno, Jia Xu Brian Sia, Khoi Phuong Dao, Hyung‐Bin Bae, Vladimir Liberman, Steven A. Vitale, Myungkoo Kang, Kathleen A. Richardson, Carlos A. Ríos Ocampo, Dennis Calahan, Yifei Zhang, William M. Humphreys, Hyun Jung Kim, Tian Gu, Juejun Hu   +19 more
wiley   +1 more source

KAJI EKSPERIMENTAL  PENGARUH MODIFIKASI KEPALA SILINDER  TERHADAP CAMPURAN BAHAN BAKAR – UDARA  (AIR-FUEL RATIO)  (STUDI KASUS PADA MESIN HONDA GX-160)  [PDF]

, 2015
Penelitian ini menganalisa pengaruh modifikasi kepala silinder terhadap campuran bahan bakar-udara pada mesin Honda GX-160. Penelitian ini  dilakukan dengan cara memotong kepala silinder sebesar 0,1, 0,2, 0,3, 0,4, dan  0,5.
Afdhal Kurniawan, Mainil, Agus , Nuramal, Aprinaldi  , Aprinaldi    +2 more
core