Results 121 to 130 of about 434,441 (275)

Design and implementation of solid state drive based on AES and SM4 encryption

Dianzi Jishu Yingyong
Secure storage of hard drives is a core issue in solid state disk related technologies. Based on the SATA interface, a hardware module is proposed to implement multiple encryption algorithms for SSD storage data encryption and decryption in the design of
Wang Lijuan, Shen Qing, Xu Bin, Yang Chuwei, Hou Qingqing   +4 more
doaj   +1 more source

O2‐Accessible Fe–N4 Active Site Density Boosts Efficient Oxygen Reduction to Fuel‐Cell Level

Advanced Materials, EarlyView.
This study investigates the role of hierarchical nanostructure design in optimizing oxygen mass transport for the oxygen reduction. Using atomically dispersed Fe–N–C catalysts with solid, yolk‐shell, and hollow structures, it demonstrates that the yolk‐shell architecture provides superior O2 accessibility to active Fe–N4 sites.
Tianyu Zhang, Chen Liang, Shilun Sun, Shibo Xi, Zhongbin Zhuang, Jinliang Yuan, Zheng Xiao Guo, Junfeng Liu   +7 more
wiley   +1 more source

CONSTRUCTION OF A CRYPTOSYSTEM USING THE AES BOX AND A BIJECTIVE FUNCTION FROM THE NATURAL NUMBERS TO THE SET OF PERMUTATIONS

Ciencia e Ingeniería Neogranadina, 2009
Dado un entero positivo n se construye un algoritmo que asocia a cada entero positivo m, con 0 ¿ m ¿ n!-1, una permutación en n-1 pasos. De hecho, el algoritmo defi ne una función biyectiva que va del conjunto de los naturales al conjunto de las ...
Víctor Manuel Silva García, Michael Klaus Lindig Bos, Cornelio Yáñez Márquez, Rolando Flores Carapia, Itzamá López Yáñez   +4 more
doaj  

Multi-level charging spot data encryption method combined K-anonymity with AES

Diance yu yibiao
In response to the privacy and security issues of a large amount of user charging data brought by the rapid development of new energy vehicles, this paper proposes a multi-level charging spot data encryption method that combines K-anonymity with advanced
LIU Huiying, LIANG Yanhe, GONG You, LI Qi, LI Xinggang   +4 more
doaj   +1 more source

Understanding the Dynamics of Nanoparticle Formation and Evolution in Functional Oxides via In Situ SAXS/WAXS

Advanced Materials Interfaces, EarlyView.
In situ SAXS/WAXS enables real‐time tracking of nanoparticle formation and evolution in exsolved and infiltrated Ni‐based perovskites under reducing conditions. The combined technique captures nucleation, growth, and coarsening dynamics with high temporal resolution, providing statistically robust insights into structural and morphological ...
Elena Vicente, Sylvio Haas, Jose Manuel Serra, María Balaguer, Cecilia Solís   +4 more
wiley   +1 more source

The Impact of Catalyst Layer Composition and Structure on Performance and Durability of PEMWE Anodes

Advanced Materials Technologies, EarlyView.
This article explores a new type of anode for water electrolysis that uses less iridium, a rare and expensive metal. By combining stable iridium oxide with platinum and carbon‐based materials, the authors create a catalyst layer that maintains strong performance.
Lena V. Bühre, Kaustubh Khedekar, Kimberly S. Reeves, Haoran Yu, Shaun M. Alia, Bryan S. Pivovar   +5 more
wiley   +1 more source

Ductility Tuning via Cluster Network Characteristics of Porous Components

Advanced Materials Technologies, EarlyView.
Network optimization via cluster characteristics induced by interaction of stress concentration is proposed, demonstrating increased cluster size and dispersion in non‐uniform porous components. The optimized structures exhibit, for the first time, that enhanced ductility and damage progression is controllable through zigzag cluster network designed by
Ryota Toyoba, Yuichi Otsuka, Ian J Davies, Naritoshi Aoyagi, Yukio Miyashita   +4 more
wiley   +1 more source

Ratiometric Temperature Sensing through Alternating Current Electroluminescence

Advanced Optical Materials, EarlyView.
Thermoresponsive alternating current electroluminescence (ACEL) is realized in ZnS microparticles with optimized Cu, Cl, and Co tri‐doping concentrations, exhibiting a blue‐to‐green emission band shift along with increasing temperature. Based on this behavior, an ACEL‐driven temperature sensing platform is developed for quantitative temperature ...
Zhifeng Xing, Shuohan Li, Xin Zhang, Fengjun Chun, Yaxin Cao, Shengqiang Liu, Xiaohe Wei, Feng Wang   +7 more
wiley   +1 more source

Grip and Grasp: Lizard Claw Inspired Robotic Manipulators

Advanced Robotics Research, EarlyView.
Our study identifies the most effective lizard claw shape for use as an end effector in a bioinspired robotic manipulator. By examining key geometric features and combining them into comparative indices, the Crotaphytus collaris claw is found to be the best fit.
Hyeon Lee, Kate Douglas, Asyiah Bray, Andrea Rummel, Parvez Alam   +4 more
wiley   +1 more source

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source