Results 81 to 90 of about 237,975 (302)

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan, Xiaodong Sun, Kailai Zhang, Shuai Zhang, Haijun Hu, Hui Li, Zhenglong Li, Hongwei Huang, Liqun Ye, Jiyang Li, Yunling Liu, Hongge Pan, Tianyi Ma   +12 more
wiley   +1 more source

Two scenarios for avalanche dynamics in inclined granular layers

, 2005
We report experimental measurements of avalanche behavior of thin granular layers on an inclined plane for low volume flow rate. The dynamical properties of avalanches were quantitatively and qualitatively different for smooth glass beads compared to ...
G. B. Whitham, J. Gollub, R. F. Dressler, R. M. Nedderman, Robert E. Ecke, S. B. Savage, S. B. Savage, T. R. H. Davies, Tamás Börzsönyi, Thomas C. Halsey   +9 more
core   +1 more source

High Velocity Cloud Complex H: A Satellite of the Milky Way in a Retrograde Orbit? [PDF]

, 2003
Observations with the Green Bank Telescope of 21cm HI emission from the high-velocity cloud Complex H suggest that it is interacting with the Milky Way.
Bruns C., Cram T. R., Dieter N. H., Felix J. Lockman, Hulsbosch A. N. M., Hulsbosch A. N. M., Kalberla P. M. W., Morras R., Pietz J., Wakker B. P., Wakker B. P.   +10 more
core   +2 more sources

Polymer Infiltration Into SURMOF Channels Enables Hydrophobic and Solid‐Like Slippery Functional Thin Films

Advanced Functional Materials, EarlyView.
We report a polymer‐chain insertion strategy to fabricate pore‐threaded MOF thin films with precisely tuned surface chemistry and wettability. Grafting n‐alkane chains into the pillared layer Cu2(bdc)2(dabco) MOF thin film's vertical nanochannels enhances water stability, and induces hydrophobicity and lubricant‐free, solid‐like slippery behavior ...
Angana Borbora, Modan Liu, Hartmut Gliemann, Uttam Manna, Christof Wöll   +4 more
wiley   +1 more source

Similarity solutions for unsteady shear-stress-driven flow of Newtonian and power-law fluids : slender rivulets and dry patches [PDF]

, 2012
Unsteady flow of a thin film of a Newtonian fluid or a non-Newtonian power-law fluid with power-law index N driven by a constant shear stress applied at the free surface, on a plane inclined at an angle α to the horizontal, is considered.
AB Ponter, AC King, AC King, B. R. Duffy, CA Perazzo, D Holland, D Holland, DE Hartley, DG Penn, E Rio, EB Dussan V, EY Gatapova, GW Young, H Ding, H Ding, HE Huppert, HE Huppert, HK Moffatt, I Eames, IS McKinley, IS McKinley, IS McKinley, J Sébilleau, JM Sullivan, JP Pascal, JP Pascal, JR Lister, LW Schwartz, M Villegas-Diaz, P Dimitrakopoulos, P Dimitrakopoulos, PC Smith, RE Pattle, RP Agarwal, S. K. Wilson, SDR Wilson, SDR Wilson, SH Smith, SK Wilson, SK Wilson, SK Wilson, T Podgorski, T Podgorski, VA Gorodtsov, W Murgatroyd, X Li, Y. M. Yatim   +46 more
core   +1 more source

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

Advanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong, Dohyean Kim, Jiyun Jeong, Taekyeong Kim, Soon‐sung Kwon, Junyoung Seo, Il Jeon, Im Doo Jung   +7 more
wiley   +1 more source

ANALYSIS AND STUDY OF ROLLING PARAMETERS OF COILS ON AN INCLINED PLANE

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
In the article, the patterns of movement of rolls of long-fiber plant crops on an inclined plane are investigated. Experimental data on determining the rolling time of rolls on an inclined plane with angles of inclination of 25° and 10° to the horizon ...
Larysa Gumeniuk, Lesya Fedik, Volodymyr Didukh, Pavlo Humeniuk   +3 more
doaj   +1 more source

Spirals in protoplanetary disks from photon travel time [PDF]

, 2016
Spiral structures are a common feature in scattered-light images of protoplanetary disks, and of great interest as possible tracers of the presence of planets.
Heays, A. N., Kama, M., Pinilla, P.
core   +3 more sources

Clean Up Behind You ‐ Novel Patterning Approach for Solid Immersion Lenses

Advanced Functional Materials, EarlyView.
A focused ion beam (FIB) milling strategy enables rapid fabrication of solid immersion lenses (SILs) with smooth, debris‐free surfaces eliminating the need for post‐processing. The optimized pattern improves efficiency and surface quality. SILs containing NV centers are also investigated, confirming the technique's suitability for quantum and photonic ...
Aleksei Tsarapkin, Stefan Facsko, Wentao Zhang, Anna Mogilatenko, Kilian Unterguggenberger, Bailiang Li, Cem Güney Torun, Gerhard Hobler, Tommaso Pregnolato, Tim Schröder, Katja Höflich   +10 more
wiley   +1 more source

Ethyl 5-methyl-7-phenyl-1,2,4-triazolo[4,3-a]pyrimidine-6-carboxylate

Acta Crystallographica Section E, 2014
In the title compound, C15H14N4O2, the triazolopyrimidine ring system is almost planar (r.m.s. deviation = 0.02 Å) and the phenyl ring is inclined to its mean plane by 42.45 (9)°.
Omaima M. AboulWafa, Ahmed M. Farghaly, Mohamed Teleb, Khaled S. Sinoussy   +3 more
doaj   +1 more source