Results 91 to 100 of about 6,995 (287)

Dual Randomness From Spatial and Temporal Variations in Stochastic Zinc Gallate Nanoclusters for PUF and TRNG Co‐Driven Image Generation

Advanced Science, EarlyView.
A dual‐randomness hardware platform is demonstrated by integrating PUF and TRNG functionalities into mixed‐ZGO nanoclusters. By leveraging spatial and temporal stochasticity, the mixed‐ZGO NCs device enables both unique identification and random signal generation.
Seungme Kang, Wangmyung Choi, Jueun Lee, Yeong Kwon Kim, Byung Chul Jang, Wonjun Shin, Hocheon Yoo   +6 more
wiley   +1 more source

Electron‐Rich Nickel Enabled by Charge Transfer in Multimetal Nanostructures for Efficient Ammonia‐to‐Hydrogen Conversion

Advanced Science, EarlyView.
A charge‐transfer‐engineered Ni catalyst derived from an atomically mixed layered precursor enables efficient ammonia‐to‐hydrogen conversion. Cr‐to‐Ni electron transfer creates electron‐rich Ni active sites that favor NH3 adsorption, modify the dehydrogenation energetics, and weaken N2 binding to facilitate product desorption. This electronically tuned
Donghyeok Kim, Su‐Jin Kim, Gayeong Kim, Hyoseok Kim, Jongkyoung Kim, Myeung‐Jin Lee, Bora Jeong, Minkyu Kim, Hong‐Dae Kim, Seungho Cho   +9 more
wiley   +1 more source

Spinels in Mid-Atlantic Ridge basalts: Chemistry and occurrence

, 1976
Three groups of spinels have been identified in dredged basalts from the Mid-Atlantic Ridge in the Azores region (30-40°N): (1) magnesiochromites with 0.4-0.5 Cr (Cr + Al) are most common and characteristic of olivine tholeiites of the region; (2 ...
Schilling, J. G., Sigurdsson, Haraldur
core   +1 more source

Mitochondria‐Targeting Iron–Carbon Nanozymes Combat Hepatic Ischemia–Reperfusion Injury via the Dual Mechanisms of Respiratory Chain Remodeling and Pyroptosis Inhibition With MRI Monitoring

Advanced Science, EarlyView.
A mitochondrial‐targeted FeCD‐SS31 nanoplatform integrates ROS‐responsive SS31 release with cascade antioxidant Fe3O4/CDs cores to suppress both de novo and existing ROS. By restoring mitochondrial complex integrity and blocking caspase‐1–GSDMD‐N pyroptosis, it reduces neutrophil infiltration and alleviates hepatic ischemia–reperfusion injury, while ...
Qianying Du, Lian Xu, Tingting Xia, Wenli Zhang, Sijin Chen, Xiyue Rong, Ying Luo, Yi Wang, Jia Liu, Yun Liu, Haitao Ran, Dajing Guo, Jie Xu   +12 more
wiley   +1 more source

Exploiting Temperature Effects for Robust Control and Reference Circuits Using Thin‐Film Contact‐Controlled Transistors

Advanced Electronic Materials, EarlyView.
Compact circuits based on contact‐controlled transistors are well‐suited to unsupervised thermal management, sensitive temperature measurement, or temperature‐stable current references. Demonstrated on flexible microcrystalline silicon and supported by simulation, the approach does not require supply voltage regulation, remains manufacturable across ...
Eva Bestelink, Jean‐Charles Fustec, Olivier de Sagazan, Rogier Fransen, George Bairaktatis, Emmanuel Jacques, Radu A. Sporea   +6 more
wiley   +1 more source

Raman fingerprint of spinels

, 2014
Synthetic and natural spinel single crystals having compositions approaching spinel end-members MgAl2O4, CoAl2O4, FeAl2O4, ZnAl2O4, MgCr2O4 and ZnCr2O4 were investigated by Raman spectroscopy in the 100-900 cm-1 range using the excitation of the blue 473.
D'IPPOLITO, VERONICA, D. Bersani, P. P. Lottici, ANDREOZZI, Giovanni Battista   +3 more
core  

Fabrication of Composite Cathode for All‐Solid‐State Sodium Batteries

Advanced Energy Materials, EarlyView.
The design of composite cathodes for all‐solid‐state sodium batteries must address three critical challenges—interfacial side reactions, interfacial delamination, and highly tortuous transport pathways. This work outlines structural and interfacial strategies to optimize ion transport and mechanical stability, enabling durable, and high‐performance ...
Gaoming Sun, Yuan Ma, Hehe Zhang, Shengan Wu, Shiyong Chu, Stefano Passerini, Yanjiao Ma   +6 more
wiley   +1 more source

Influence of the cation substitution on the magnetic properties of LiCo₂O₄ and Li(Me,Co)₂O₄ spinels

Boletín de la Sociedad Española de Cerámica y Vidrio, 2004
Lithium-based cells LiCo2O4 have been characterized by magnetic techniques, looking at the influence of the partial substitution of cobalt by 3d or 4d transition metal elements (Fe, Ni, Cu, Cr, Mo).
Gautier, J. L., Meza, E., Guizouarn, T., Bodenez, V., Peña, O.   +4 more
doaj  

Al-rich spinels in primitive arc volcanics

, 1995
Al-rich spinels (100Cr/(Cr + Al) 50 wt%) are common in alpine peridotites, both terrestrial and lunar mafic and ultramafic cumulates, and in certain metamorphic rocks, but they are apparently rare in terrestrial volcanic rocks.
Vadim Kamenetsky (14740705), Della-Pasqua, FN (15476891), Gasparon, M (15476894), Varne, R (15476897), Anthony Crawford (14734465)   +4 more
core  

Radiation Induced Changes in Normal Spinels

, 2007
International audienceIon irradiation induced phase transformations in three normal spinel compounds MgAl2O4, MgCr2O4 and ZnAl2O4 have been investigated by X-ray diffraction, Raman spectroscopy and Transmission Electron Microscopy.
Gianguido Baldinozzi, Dominique Gosset, Leo Mazerolles, David Simeone, Thomé, L., Baldinozzi, G., Mazérolles, L., Gosset, D., Lionel Thome, Simeone, D.   +9 more
core   +1 more source