Results 31 to 40 of about 36,824 (159)

Combining GPS, GIS, and accelerometry to explore the physical activity and environment relationship in children and young people – a review [PDF]

, 2014
The environment has long been associated with physical activity engagement, and recent developments in technology have resulted in the ability to objectively quantify activity behaviours and activity context. This paper reviews studies that have combined
Ellaway, Anne, Fenton, Candida, Mccrorie, Paul R.W.   +2 more
core   +2 more sources

The Influence of Magnetic Field Geometry on the Evolution of Black Hole Accretion Flows: Similar Disks, Drastically Different Jets

, 2008
Because the magneto-rotational instability is capable of exponentially amplifying weak preexisting magnetic fields, it might be hoped that the character of the magnetic field in accretion disks is independent of the nature of the seed field. However, the
Blandford R. D., Blandford R. D., John F. Hawley, Julian H. Krolik, Kris Beckwith   +4 more
core   +1 more source

Enhancement of polar phases in PVDF by forming PVDF/SiC nanowire composite [PDF]

, 2016
Different contents of silicon carbide (SiC) nanowires were mixed with Poly(vinylidene fluoride) (PVDF) to facilitate the polar phase crystallization.
Chen, Hui-Jiuan, Han, Song-Jia, Huang, Jie-Fang, Li, Gong-Tan, Liu, Gui-Shi, Luo, Zhen-Hua, Shieh, Han-Ping D., Wang, Yu-Cheng, Wang, Zi-Xin, Yang, Bo-Ru   +9 more
core   +1 more source

Near-unity quantum yields from chloride treated CdTe colloidal quantum dots [PDF]

, 2014
Colloidal quantum dots (CQDs) are promising materials for novel light sources and solar energy conversion. However, trap states associated with the CQD surface can produce non‐radiative charge recombination that significantly reduces device performance ...
Binks, DJ, Bondino, F, Espinobarro-Velazquez, D, Flavell, WR, Haigh, SJ, Leontiadou, M, Lewis, EA, Li, C, Magnano, E, O'Brien, P, Page, RC, Pengpad, A, Pis, I, Radtke, H, Smith, C   +14 more
core   +1 more source

Where is the Radiation Edge in Magnetized Black Hole Accretion discs?

, 2008
General Relativistic (GR) Magnetohydrodynamic (MHD) simulations of black hole accretion find significant magnetic stresses near and inside the innermost stable circular orbit (ISCO), suggesting that such flows could radiate in a manner noticeably ...
Afshordi, Agol, Armitage, Balbus, Balbus, Balbus, Bardeen, Beckwith, Beckwith, Beckwith, Blaes, Brankin, Brenneman, Cunningham, Davis, Davis, De Villiers, De Villiers, De Villiers, De Villiers, Done, Elvis, Falcke, Fragile, Gammie, Gierliński, Hawley, Hawley, Hawley, Hirose, Hirose, Hubeny, Hui, John F. Hawley, Julian H. Krolik, Kato, Kris Beckwith, Krolik, Krolik, Krolik, Krolik, Liu, Makishima, McClintock, Middleton, Miller, Miller, Miniutti, Noble, Novikov, Page, Reynolds, Reynolds, Reynolds, Rezzolla, Sano, Shafee, Shafee, Shakura, Thorne, Wagoner, Yu   +61 more
core   +2 more sources

Infrared Nanospectroscopy for Catalysis and Electrochemistry: From Table‐Top Lasers to Synchrotron Radiation and Free Electron Lasers

ChemistryEurope, Volume 4, Issue 3, March 2026.
This Concept highlights recent advances in infrared nanospectroscopy for catalysis and electrochemistry. By integrating atomic force microscopy with infrared spectroscopy, s‐SNOM and AFM‐IR enable nanoscale chemical spectroscopy. Developments in table‐top lasers, synchrotron radiation, and free electron laser sources broaden spectral access and ...
Mengyue Ma, Jiawei Xue, Jun Bao
wiley   +1 more source

Interfacial Engineering Toward Local Environment Modulation for Selective CO2 Electroreduction

Carbon Neutralization, Volume 5, Issue 1, January 2026.
Interfacial engineering strategies are systematically categorized to address rate, selectivity, and stability challenges in electrochemical CO2 reduction. This review highlights mechanistic insights and synergistic effects of mass transport, electric field tuning, local proton management, molecular functionalization, and hybrid architectures, offering ...
Min Zheng, Qian Sun, Zeheng Lin, Yanzhao Zhang, Yifan Bao, Jiakang You, Kai Wang, Huihui Li, Shuhao Wang, Yan Nie, Yuhan Xie, Dazhi Yao, Shuai Bi   +12 more
wiley   +1 more source

Network Representation and Passivity of Delayed Teleoperation Systems [PDF]

, 2011
The paper proposes a general network based analysis and design guidelines for teleoperation systems. The electrical domain is appealing because it enjoys proficient analysis and design tools and allows a one step higher abstraction element, the ...
Artigas, Jordi, Hirzinger, Gerd, Preusche, Carsten, Ryu, Jee-Hwan   +3 more
core  

Multi‐channel charge transfer delayed fluorescence enabling high‐efficiency organic light‐emitting diodes

FlexMat, Volume 2, Issue 4, Page 533-581, December 2025.
The enhanced utilization of triplet excitons is a central theme in the evolution of organic luminescent materials. This review sums up recent research on multi‐channel charge transfer delayed fluorescence molecules, which exhibit a unique distribution of excited‐state energy levels, thereby enhancing the utilization rate of triplet excitons and ...
Guo‐Wei Chen, Zhen Zhang, Xin‐Yi Zeng, Yi‐Hui He, Guo Yuan, Yan‐Qing Li, Jian‐Xin Tang   +6 more
wiley   +1 more source

Melt processable homo- and copolyimides with high thermo-oxidative stability as derived from mixed thioetherdiphthalic anhydride isomers

eXPRESS Polymer Letters, 2010
A series of homo- and copolyimides based on mixed thioetherdiphthalic anhydride isomers (mixed-TDPA) were synthesized with several kinds of aromatic diamines.
doaj   +1 more source