Results 41 to 50 of about 13,125 (213)

Characteristics and dynamic analysis of the February 2021 long-runout disaster chain triggered by massive rock and ice avalanche at Chamoli, Indian Himalaya

Journal of Rock Mechanics and Geotechnical Engineering, 2023
A massive rock and ice avalanche occurred on the western slope of the Ronti Gad valley in the northern part of Chamoli, Indian Himalaya, on 7 February 7, 2021. The avalanche on the high mountain slope at an elevation of 5600 m above sea level triggered a
Tiantian Zhang, Yueping Yin, Bin Li, Xiaojie Liu, Meng Wang, Yang Gao, Jiawei Wan, Kaushal Raj Gnyawali   +7 more
doaj   +1 more source

Efficient in‐Plane Exciton Transport in a Discontinuous Layered Lead‐Bromide Perovskite

Advanced Materials, EarlyView.
A new class of two‐dimensional lead‐bromide perovskite based on monovalent 4‐aminomethylbenzoic acid cations is presented, featuring a discontinuous inorganic layer. Despite the discontinuous lattice, transient photoluminescence microscopy demonstrates efficient though strongly anisotropic in‐plane exciton transport.
Raquel Utrera‐Melero, Antonella Cutrupi, Ivan Rivilla, Davide Spirito, E. Carolina Sañudo, Juan Cabanillas‐González, Antonio I. Fernández‐Domínguez, Beatriz Martín‐García, Jose Sánchez Costa, Ferry Prins   +9 more
wiley   +1 more source

Band Alignment of Grafted Si/Ge0.89Sn0.11 Heterojunction Determined by X‐Ray Photoelectron Spectroscopy

Advanced Materials Interfaces, EarlyView.
ABSTRACT We investigate the band alignment of a monocrystalline grafted p‐type Si/Ge0.89Sn0.11 heterostructure using X‐ray photoelectron spectroscopy (XPS). The bandgap of the Ge0.89Sn0.11 epilayer of 0.50 eV was first determined and cross‐verified using photoluminescence spectroscopy, infrared transmission, and theoretical calculation.
Yang Liu, Yiran Li, Tsung‐Han Tsai, Sudip Acharya, Yi Lu, Jie Zhou, Samuel A. Haessly, Shui‐Qing Yu, Nanditha M. Dissanayake, Edward K. Huang, Jiarui Gong, Zhenqiang Ma   +11 more
wiley   +1 more source

Key-controlled Rijndael algorithm with multiple S-boxes

Tongxin xuebao, 2007
According to the design criterion of S-box in Rijndael algorithm,a number of S-boxes with good crypto-graphic properties were constructed,and the avalanche probabilities of these S-boxes were analyzed from variance point of view.Based on these studies,a ...
YIN Xin-chun 1, YANG Jie 1, XIE Li 2
doaj   +2 more sources

Kriptografi Teks Berbasis Algoritma Substitusi Vigenere Cipher 8 Bit

Jurnal Masyarakat Informatika
Vigenere Cipher merupakan salah satu algoritma kriptografi klasik dalam dunia kriptografi. Penelitian ini berfokus pada penggunaan metode Vigenere Cipher dan implementasinya dalam mengamankan sebuah teks pesan berbentuk ASCII.
Nida Aulia Karima, Ade Nurul Aisyah, Hercio Venceslau Silla, Lekso Budi Handoko, Ramadhan Rakhmat Sani   +4 more
doaj   +1 more source

Single Photon Emitters in Monolayer Semiconductors Coupled to Transition Metal Dichalcogenide Nanoantennas on Silica and Gold Substrates

Advanced Optical Materials, EarlyView.
Single‐photon emitters in WSe2 are formed at strain hotspots created by transition metal dichalcogenide (WS2) nanoantennas on dielectric and metallic substrates. Enhanced emission properties and collection efficiencies are achieved experimentally, while numerical optimization predicts fluorescence enhancements of more than four orders of magnitude ...
Panaiot G. Zotev, Sam A. Randerson, Xuerong Hu, Yue Wang, Alexander I. Tartakovskii   +4 more
wiley   +1 more source

Strict Avalanche Criterion of SHA-256 and Sub-Function-Removed Variants

Cryptography
The measure of diffusion, the property of dissipating patterns and statistical structures in cryptographic transformations, serves as a valuable heuristic for assessing the obscurity of patterns that could lead to collisions.
Riley Vaughn, Mike Borowczak
doaj   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

Advanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung, Gwang Ya Kim, Sejin Kim, Hyunjong Seo, Se Gi Lee, Sang Min Won, Dongjoon Rhee, Joohoon Kang   +7 more
wiley   +1 more source

ALGORITMA KRIPTOGRAFI GOST DENGAN IMPLEMENTASI MD5 UNTUK MENINGKATKAN NILAI AVALANCHE EFFECT

Techno.Com, 2016
Dalam penerapan algoritma kriptografi GOST selain menggunakan Fiestel Network dengan panjang kunci 256 bit, juga memerlukan perputaran sejumlah 32 kali dalam setiap prosesnya.
Aisyatul Karima, Mohammad Nur Diyatan
doaj  

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source