Results 121 to 130 of about 35,962 (267)

Search for long-term variability of HESS J1745-290

Astronomy & Astrophysics
At the center of our Galaxy lies the bright γ-ray point-like source HESS J1745-290, which is compatible in position with Sgr A⋆, although an association between the two remains uncertain.
Acharyya A., Aharonian F., Backes M., Batzofin R., Berge D., Bernlöhr K., Böttcher M., Boisson C., Bolmont J., Brun F., Bruno B., Burger-Scheidlin C., Bylund T., Celic J., Cerruti M., Chen A., Chernyakova M., Chibueze J. O., Chibueze O., Cornejo B., Cotter G., Mbarubucyeye J. Damascene, de Assis Scarpin J., de Bony de Lavergne M., de Naurois M., de Oña Wilhelmi E., Giler A. G. Delgado, Devin J., Djannati-Ataï A., Dmytriiev A., Egg K., Ernenwein J.-P., Nieves C. Escañuela, Fauverge P., Feijen K., Filipovic M. D., Fontaine G., Funk S., Gabici S., Glicenstein J. F., Glombitza J., Goswami P., Heckmann L., Hess B., Hinton J. A., Hofmann W., Holch T. L., Holler M., Horns D., Jamrozy M., Jankowsky F., Jaroschewski I., Jung-Richardt I., Kerszberg D., Khélifi B., Komin N., Kosack K., Kostunin D., Lang R. G., Lazarević S., Lemière A., Lemoine-Goumard M., Lenain J.-P., Liniewicz P., Mackey J., Malyshev D., Marandon V., Mayer M. G. F., Mehta A., Mitchell A. M. W., Moderski R., Mohrmann L., Montanari A., Niemiec J., Olivera-Nieto L., Moghadam M. O., Panny S., Parsons R. D., Pensec U., Pichard P., Preis T., Pühlhofer G., Punch M., Quirrenbach A., Reimer A., Reimer O., Reis I., Ren H. X., Reville B., Rieger F., Rowell G., Rudak B., Sabri K., Sahakian V., Santangelo A., Sasaki M., Schüssler F., Said W. Si, Sol H., Stawarz Ł., Tanaka T., Taylor G. L., Terrier R., Tsirou M., Unbehaun T., van Eldik C., Vecchi M., Venter C., Vink J., Voitsekhovskyi V., Wach T., Wagner S. J., Wierzcholska A., Zacharias M., Zech A., Zhong W., Zouari S.   +116 more
doaj   +1 more source

Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride

Advanced Functional Materials, EarlyView.
This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem, Zhiyuan Li, Minsu Heo, Fangyi Hu, Tian Lan, Youngdeog Koh, Ruiwen Xie, Chuanmu Tian, Marc Widenmeyer, Hyun‐Sik Kim, Jan P. Hofmann, Yuan Yu, Hongbin Zhang, Anke Weidenkaff, G. Jeffrey Snyder, Wenjie Xie   +15 more
wiley   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Prospects for Gamma-Ray Emission from Magnetar Regions in CTAO Observations

The Astrophysical Journal
Recent multiwavelength observations have highlighted magnetars as significant sources of cosmic rays, particularly through their gamma-ray emissions. This study examines three magnetar regions—CXOU J171405.7–31031, Swift J1834−0846, and SGR 1806−20—known
M. F. Sousa, R. Costa Jr., Jaziel G. Coelho, R. C. Dos Anjos   +3 more
doaj   +1 more source

Global dose distributions of neutrons and gamma-rays on the Moon. [PDF]

Sci Rep, 2023
Naito M, Kusano H, Kodaira S.
europepmc   +1 more source

Bioinspired Hydrogels with Broadly Programmable Mechanics for Soft‐Tissue Interfaces

Advanced Functional Materials, EarlyView.
Sea cucumber‐inspired gelatin hydrogels are formed by directional freezing and mechanically programmed through subsequent ionic treatment. Multiscale characterization and modeling link ion‐regulated chain interactions to directional load transfer within the aligned hierarchical architecture.
Youchao Teng, TzuChun Chung, Katpady Akhil Tantry, Siyu Wu, Jing Tian, Yunqi Cui, Lanyu Li, Yongzan Zhou, Zhilei Zhang, Zhe Su, Gaili Cao, Kun‐Wei Yeh, Ruipeng Li, Xianghui Xiao, Adam F. G. Leontowich, Yuan‐Yu Hsueh, Zhao Pan, Kam C. Tam, Badri Narayanan, Song Li, Yimin. A. Wu   +20 more
wiley   +1 more source

Lewis Acid Site Engineering in MOF‐Derived Aluminum Oxide/Carbon Composites for Dechlorination of Waste Plastic Pyrolysis Oil

Advanced Functional Materials, EarlyView.
Controlled carbonization of an Al‐MOF partially decomposes its linkers, exposing coordinatively unsaturated Al centers within an oxide/carbon composite. The resulting Lewis acid sites, rather than surface area, govern organochlorine capture: the composite removes chemically diverse organochlorines from waste plastic pyrolysis oil, outperforms a ...
Seong Cheon Kim, Byeongju Jeon, Suk Hyun Lim, Eun Hee Kwon, Nam Sun Nho, Siyoung Q. Choi, Jeasung Park   +6 more
wiley   +1 more source

Gamma-rays induced mutations increase soybean oil and protein contents. [PDF]

PeerJ, 2023
Mohsen G, Soliman SS, Mahgoub EI, Ismail TA, Mansour E, Alwutayd KM, Safhi FA, Abd El-Moneim D, Alshamrani R, Atallah OO, Shehata WF, Hassanin AA.   +11 more
europepmc   +1 more source

Grayscale Photomasks Enable Noncontact Optical Patterning of Hydroxypropyl Cellulose Gels for Dynamic Art

Advanced Functional Materials, EarlyView.
Mask‐encoded UV exposure translates digital color information into pixel‐resolved structural‐color patterns in hydroxypropyl cellulose gels. Gaussian‐process‐guided calibration links UV processing conditions, wavelength, and mask opacity, enabling parallel fabrication of multicolor images in a single 10 s exposure.
Mengting Ye, Yunyi Zhu, Sai Sabareesh KS, Md Ashiqur Rahman Alif, Yichen Wan, Ruobing Bai, Narges Pourjafarian, Stefanie Mueller, Hongli Zhu   +8 more
wiley   +1 more source

Particle‐Level ZrO2 Atomic Layer Deposition Enables Fast‐Cycling and Long‐Life Graphite Cathodes for Dual‐Ion Batteries

Advanced Functional Materials, EarlyView.
A spatial location of atomic layer deposition (ALD)‐derived ZrO2 coatings is demonstrated to be a critical design parameter for stabilizing graphite cathodes in DIBs. Direct particle‐level ALD (PALD) screening of representative metal oxides identified ZrO2 as the coating that provides the most favorable balance of high‐rate capability and interfacial ...
Jieun Kang, Sung Eun Jo, Yunah Ji, Dongjoo Kim, Sungho Kim, Jaegeon Ryu, Jihwan An, Soojin Park   +7 more
wiley   +1 more source