Results 71 to 80 of about 51,904 (226)

Radiation‐Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System

Advanced Materials, EarlyView.
A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Patrick D. Willenshofer, Matheus A. Tunes, Hi T. Vo, Lukas Stemper, Markus Alfreider, Oliver Renk, Graeme Greaves, Daniel Kiener, Peter J. Uggowitzer, Stefan Pogatscher   +9 more
wiley   +1 more source

Magnetic Activities of GJ 1151: Flares in TESS Data and Radio Observation in uGMRT

The Astrophysical Journal
GJ 1151 is a nearby (8 pc), quiescent mid-M dwarf (M 4.5V) of older age, made especially interesting by the hypothesized presence of a close-in planet invoked to explain its low-frequency radio emission.
Diya Ram, Soumen Mondal, Anandmayee Tej, Tapas Baug, Ramkrishna Das, Dusmanta Patra, Samrat Ghosh, Rajib Kumbhakar   +7 more
doaj   +1 more source

White Light Flare Continuum Observations with ULTRACAM

, 2011
We present sub-second, continuous-coverage photometry of three flares on the dM3.5e star, EQ Peg A, using custom continuum filters with WHT/ULTRACAM. These data provide a new view of flare continuum emission, with each flare exhibiting a very distinct ...
Copperwheat, Chris M., Dhillon, Vik S., Hawley, Suzanne L., Hilton, Eric J., Kowalski, Adam F., Marsh, Tom R., Mathioudakis, Mihalis   +6 more
core  

KIC011764567: An evolved object showing substantial flare-activity

, 2016
We intensively studied the flare activity on the stellar object KIC011764567. The star was thought to be solar type, with a temperature of $T_{eff} = (5640 \pm 200)\,$K, $\log(g) = (4.3 \pm 0.3)\,$dex and a rotational period of Prot 22 d (Brown et al ...
Akopian, A. A., Hambaryan, V., Kitze, M., Neuhäuser, R., Torres, G.   +4 more
core   +1 more source

Spider Silk–Integrated Biomimetic Micropillars With Dual Adhesion for Improved Wound Hemostasis and Healing

Advanced Materials Technologies, EarlyView.
The patch mimics the dual physicochemical adhesion mechanisms of gecko toe micropillars and spider silk proteins, enabling strong interfacial bonding via partially cured micropillars. Its facile fabrication allows customization for precision medicine, while its motion responsiveness offers potential for real‐time wound monitoring.
Chengxin Luan, Meng Wei, Xinran Chen, Ni Gan, Bingbing Gao   +4 more
wiley   +1 more source

The Patterns of High-Level Magnetic Activity Occurring on the Surface of V1285 Aql: The OPEA Model of Flares and DFT Models of Stellar Spots

, 2011
Statistically analyzing Johnson UBVR observations of V1285 Aql during the three observing seasons, both activity level and behavior of the star are discussed in respect to obtained results.
Alekseev I. Y., Andrews A. D., Doyle J. G., H. A. Dal, Haro G., Imanishi K., Leto G., Mavridis L. N., Montes D., Osawa K., Pettersen B. R., Pettersen B. R., S. Evren, Shakhovskaya N. I., van den Oord G. H. J., van den Oord G. H. J., Vilhu O., Walker A. R.   +17 more
core   +1 more source

Rod‐Shaped Nanotherapeutics Alleviate Rheumatoid Arthritis by Precisely Disrupting Platelet‐Mediated Pathological Crosstalk via a Morphology‐Dependent Manner

Advanced Science, EarlyView.
Owing to the margination effect, rod‐shaped nanoparticles exhibit markedly enhanced co‐localization with endothelial‐adherent platelets (PLTs) under dynamic blood flow. When internalized by PLTs, rod‐shaped PNR@Res inhibit FAK and PI3K/AKT signaling in a morphology‐dependent manner, thereby disrupting their pathological crosstalk with various ...
Bin Zhang, Yuanyi Hua, Xin Wen, Zhumei Liao, Jianheng Ren, Yajun Weng, Qin Wang   +6 more
wiley   +1 more source

Sun-as-a-star Analysis of the Solar Eruption Source Region Using Hα Spectroscopic Observations of CHASE

The Astrophysical Journal
Sun-as-a-star analyses serve as a bridge for comparative studies on solar and stellar activities. To investigate the typical Sun-as-a-star H α temporal spectral characteristics in solar eruption source regions, we analyzed five different types of solar ...
Xiaofeng Liu, Yijun Hou, Ying Li, Ye Qiu, Ting Li, Yingjie Cai, Shihao Rao, Junyi Zhang, Chuan Li   +8 more
doaj   +1 more source

A magnetically driven origin for the low luminosity GRB 170817A associated with GW170817

, 2018
The gamma-ray burst GRB 170817A associated with GW170817 is subluminous and subenergetic compared with other typical short GRBs. It may be due to a relativistic jet viewed off-axis, or a structured jet, or cocoon emission. Giant flares from magnetars may
Huang, L., Tong, H., Yu, C.
core   +1 more source

Loss‐Based Ensemble Generative Adversarial Network Model for Enhancing the Sperm Morphology Classification

Advanced Intelligent Systems, EarlyView.
A loss‐based ensemble generative adversarial network (GAN) framework is proposed to address mode collapse in sperm morphology classification. By integrating spatial augmentation and multiple GAN models, the study enhances synthetic data quality. The Shifted Window Transformer achieves 95.37% accuracy on the HuSHeM dataset, outperforming previous ...
Berke Cansiz, Hamza Osman Ilhan, Gorkem Serbes   +2 more
wiley   +1 more source