Results 61 to 70 of about 11,453 (292)

Magneto-optical imaging of magnetic deflagration in Mn12-Acetate [PDF]

, 2008
For the first time, the morphology and dynamics of spin avalanches in Mn12-Acetate crystals using magneto-optical imaging has been explored. We observe an inhomogeneous relaxation of the magnetization, the spins reversing first at one edge of the crystal
Gheorghe, D., Hernandez, J. M., Hernández-Mínguez, A., Macià, F., Tejada, J., Villuendas, D., Wijngaarden, R. J.   +6 more
core   +3 more sources

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Development and Validation of an Electromagnetic Induction-Based Thermal Propagation Test Method for Large-Format Lithium-Ion Battery Systems

Batteries
This study establishes a standardized framework for thermal propagation test in nickel-7 lithium-ion battery systems through a high-frequency electromagnetic induction heating method. The non-intrusive triggering mechanism enables precise thermal runaway
Changyong Jin, Jiangna Gu, Chengshan Xu, Wanlin Wang, Lirong Liu, Xuning Feng   +5 more
doaj   +1 more source

Radio emissions from double RHESSI TGFs [PDF]

, 2016
A detailed analysis of Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) terrestrial gamma ray flashes (TGFs) is performed in association with World Wide Lightning Location Network (WWLLN) sources and very low frequency (VLF) sferics recorded
Albrechtsen, Kjetil, Cummer, Steven, Gjesteland, Thomas, Lehtinen, Nikolai, Marisaldi, Martino, Mezentsev, Andrew, Smith, David, Østgaard, Nikolai   +7 more
core   +2 more sources

Short‐Wavelength Infrared Imaging with Organic Photodetectors Based on Non‐Fullerene Acceptors with Detection above 1200 nm

Advanced Materials, EarlyView.
Solution‐processed organic photodetectors (OPDs) based on two novel low band gap non‐fullerene acceptors BZIC‐2F and BZIC‐2Cl, when blended with common polymer donor P3HT, extend detection range beyond 1200 nm with superior performance, rivaling costly inorganic sensors and past literature.
Zhuoran Qiao, Sandeep Sharma, Yakun He, Marie Houot, Kun‐Han Lin, Davide Nodari, Filip Aniés, Matilde Brunetta, Patipan Sukpoonprom, Eunyoung Hong, Edoardo Angela, Zian Wang, Pichaya Pattanasattayavong, Martyn A. McLachlan, Artem Bakulin, Denis Andrienko, Frédéric Laquai, Martin Heeney, Nicola Gasparini   +18 more
wiley   +1 more source

Non-thermal emission from stellar bow shocks

, 2018
Since the detection of non-thermal radio emission from the bow shock of the massive runaway star BD +43$^{\circ}$3654 simple models have predicted high-energy emission, at X and gamma-rays, from these Galactic sources.
del Valle, Maria Victoria, Pohl, Martin
core   +1 more source

Thermal runaway front in failure propagation of long-shape lithium-ion battery

International Journal of Heat and Mass Transfer, 2022
Abstract Long, large-format lithium-ion batteries have become prominent in recent years in high-power application scenarios, such as in electrochemical energy storage stations, electric vehicles, and electric ships. In these batteries, failure is always initiated from a local point and then propagates to the full cell, requiring countermeasures to ...
Fangshu Zhang, Xuning Feng, Chengshan Xu, Fachao Jiang, Minggao Ouyang   +4 more
openaire   +1 more source

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

Advanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee, Moon‐Jo Kim, DongEung Kim, Chan Ho Moon, Seojoon Bang, Hyeong Seok Kang, Ju Yeong Gwon, Jong Hwa Seo, Junhyub Jeon, Junhyuk Son, Munwon Lim, Minho Kang, Dong Yun Lee, Donghyun Lim, Jung‐Hoon Park, Gi Doo Cha, Soo‐Hong Lee, Tae‐Sik Jang, Kisuk Yang, Yunho Jeong, Youngho Eom, Hyun‐Do Jung   +21 more
wiley   +1 more source

Plus Charge Prevalence in Cosmic Rays: Room for Dark Matter in the Positron Spectrum

, 2016
The unexpected energy spectrum of the positron/electron ratio is interpreted astrophysically, with a possible exception of the 100-300 GeV range. The data indicate that this ratio, after a decline between $0.5-8$ GeV, rises steadily with a trend towards ...
Diamond, P. H., Malkov, M. A., Sagdeev, R. Z.   +2 more
core   +1 more source

Effective fire extinguishing systems for lithium-ion battery [PDF]

, 2018
Lithium-ion batteries are a popular choice of power source for a variety of energy and power demanding applications for both stationary applications and electromobility.
De Rosa, Armando, Di Bari, Cinzia, Mazzaro, Michele, Morriello, Ilario, Russo, Paola   +4 more
core   +2 more sources