Results 111 to 120 of about 8,535 (275)

Impact broadening of alkali lines in brown dwarfs

, 2007
Spectral line widths of the light alkalies are presented for conditions prevailing in brown dwarf atmospheres. A unified line shape theory and a set of pseudopotentials are used to compute widths of Li, Na, and K resonance lines perturbed by He and H2 ...
Allard, N. F., Allard, F., J. F. Kielkopf, N. F. Allard, F. Allard, Kielkopf, J. F.   +5 more
core   +1 more source

Atomistic Kinetics of Dislocation‐Mediated Grain Growth in Monolayer MoS2

Advanced Science, EarlyView.
Atomic‐resolution in‐situ heating microscopy directly visualizes dislocation‐mediated grain boundary migration and grain growth in monolayer MoS2. Mobile grain boundaries migrate through collective motion of Mo 5|7 dislocations, whereas S 5|7 defects remain largely immobile.
Chang‐Won Choi, Min‐Yeong Choi, Tao Du, Jinho Rhee, Seokho Moon, Yeon‐Seo Nam, Xiaoyan Lu, Jong Kyu Kim, Jungwon Park, Moon‐Ho Jo, Cheol‐Joo Kim, Si‐Young Choi   +11 more
wiley   +1 more source

Rapid Cooling After Device Annealing Suppresses Interface Losses in Cu2ZnSnS4 Solar Cells Enabling High Efficiency and Stability

Advanced Science, EarlyView.
Rapid cooling after device annealing regulates the CdS/CZTS heterojunction and Mo/CZTS back contact, suppressing interfacial recombination and modifying the interfacial MoS2 layer, thereby enabling a 15.9% indoor PCE in pure‐sulfide CZTS solar cells.
Achmad Nasyori, Mati Danilson, Idil Mengü, Maris Pilvet, Jüri Krustok, Reelika Kaupmees, Valdek Mikli, Raavo Josepson, Yuancai Gong, Akhil Alexander, Shreyash S. Hadke, Aurelian Catalin Galca, Paola Vivo, Lydia Helena Wong, Thomas Unold, Maarja Grossberg‐Kuusk, Marit Kauk‐Kuusik   +16 more
wiley   +1 more source

Chemisorption of Oxygen by Charcoal on Treatment with Some Mild Oxidising Agents

, 1961
Treatment of charcoal with aqueous solutions of potassium persulphate, potassium bromate, potassium periodate, and potassium nitrate results in chemisorption of an appreciable amount of oxygen, more in original than in degassed samples, leading to the ...
D. D. Singh, Balwant Rai Puri, O. P. Mahajan   +2 more
core   +1 more source

High‐Throughput Screening for Accelerated Oxide Glass Discovery

Advanced Science, EarlyView.
A high‐throughput screening platform is presented that allows for accelerating laboratory glass synthesis by a factor of 102, using multicomponent stereolithographic printing. Automatic sample evaluation is achieved via Raman spectroscopy and similarity analysis without any sample preparation.
Igor Seibel‐Geraschenko, Josef Slowik, Franziska Scheffler, Alexis Duval, N. M. Anoop Krishnan, Lothar Wondraczek   +5 more
wiley   +1 more source

Origin and mobility of alkalies in two Dutch ASR-concretes. II: Microscale element distribution around sandstone and chert. Implications for the mechanism of ASR

, 2001
River gravel used as aggregate for concrete in the Netherlands contains several potentially deleterious components with respect to alkali-silica reaction (ASR), viz. porous chert, chalcedony, and impure sandstones (greywackes.
Jansen, J.B.H., Broekmans, M.A.T.M., Nijland, T.G.   +2 more
core  

Studies on Hydrolysis of Alkoxy and Alkoxyacyloxysilanes

, 1967
Studies on the hydrolysis of tetraisopropoxysilance show that it is not hydrolysed even in presence of acids or alkalies. This appears to be due to steric factors brought about by the ramification of the alkoxy group.
R. C.Mehrotra, R. P. Narain
core   +1 more source

Functional–Taxonomic Scaling Resolves Conflicting Average Genome Size Estimates Across Environmental Gradients

Advanced Science, EarlyView.
Based on genome size‐functional breadth theory, we introduce and validate a framework that adjudicates conflicting average genome size (AGS) estimates by testing which estimate yields a gap between scaled functional diversity and scaled taxonomic diversity that is consistent with the expected positive association between genome size and gene functional
Huanhuan Zhu, Xiaoye Chen, Qiushi Li, Chenyu Sun, Haihua Xia, Yingxin Huang, Cong Wang, Peilin Chen, Cheng Gao   +8 more
wiley   +1 more source

Potential‐Controlled Ammonium‐Assisted Reversible Electrodeposition of Polyoxometalates for Hybrid Redox Flow Batteries

Advanced Science, EarlyView.
Potential‐controlled NH4+‐assisted reversible electrodeposition of molecular metal oxide clusters enables dynamic solution‐to‐solid electron storage. Leveraging this deposition/dissolution reaction chemistry, polyoxometalate‐based hybrid flow batteries are demonstrated as a new platform for deposition‐based electrochemical energy storage.
Ke Wang, Nikhil Arya, Sadia Shahid, Montaha Anjass   +3 more
wiley   +1 more source

K, Rb, Sr and ⁸⁷Sr/⁸⁶Sr in rocks from the Mid-Indian Oceanic Ridge

, 1973
The 87Sr/86Sr ratios of Mid-Indian Oceanic Ridge (MIOR) basalts are nearly identical (0.7032 to 0.7035), with the exception of one more highly radiogenic sample (0.7043).
Hedge, Carl E., Subbarao, K. V.
core   +1 more source