Results 71 to 80 of about 165,252 (290)

Operando X‐ray Spectroscopy Study of Pd and Pd–Au Laterally Condensed Catalysts during Selective Acetylene Hydrogenation: The Role of Carbon

Advanced Materials, EarlyView.
The selective hydrogenation of acetylene over laterally condensed Pd and Pd–Au catalysts (LCCs) was investigated using operando X‐ray absorption and photoelectron spectroscopy in combination with density functional theory. Pd‐LCCs were found to incorporate significantly more carbon into the metal lattice than Pd–Au LCCs, where the carbon uptake governs
Eylül Öztuna, Thomas Götsch, Daniel Cruz, Patrick Zeller, Olga V. Vinogradova, Zehua Li, Christian Rohner, Franz‐Philipp Schmidt, Zahra Gheisari, Alexander Steigert, Martin Muske, Michael Hävecker, Eugen Stotz, Iryna Antonyshyn, Frank Girgsdies, Olaf Timpe, Thomas Lunkenbein, Vanessa J. Bukas, Karsten Reuter, Robert Schlögl, Katarzyna Skorupska, Axel Knop‐Gericke, Beatriz Roldán Cuenya   +22 more
wiley   +1 more source

High-Speed NTT Accelerator for CRYSTAL-Kyber and CRYSTAL-Dilithium

IEEE Access
The efficiency of polynomial multiplication execution majorly impacts the performance of lattice-based post-quantum cryptosystems. In this research, we propose a high-speed hardware architecture to accelerate polynomial multiplication based on the Number
Trong-Hung Nguyen, Binh Kieu-Do-Nguyen, Cong-Kha Pham, Trong-Thuc Hoang   +3 more
doaj   +1 more source

Almost Split Morphisms, Preprojective Algebras and Multiplication Maps of Maximal Rank [PDF]

, 2005
With a grading previously introduced by the second-named author, the multiplication maps in the preprojective algebra satisfy a maximal rank property that is similar to the maximal rank property proven by Hochster and Laksov for the multiplication maps ...
Diaz, Steven P., Kleiner, Mark
core   +3 more sources

Non-polynomial Worst-Case Analysis of Recursive Programs

, 2017
We study the problem of developing efficient approaches for proving worst-case bounds of non-deterministic recursive programs. Ranking functions are sound and complete for proving termination and worst-case bounds of nonrecursive programs.
A Chakarov, A Podelski, A Schrijver, A Schrijver, AR Bradley, B Cook, B Cook, BS Gulavani, C Alias, C Urban, CS Lee, D Handelman, E Albert, E Albert, E Albert, J Farkas, J Hoffmann, J Hoffmann, J Hoffmann, J Hoffmann, K Chatterjee, L Shen, L Yang, M Brockschmidt, M Hofmann, M Hofmann, M Sinn, MA Colón, MA Colón, O Bournez, O Shkaravska, P Cousot, P Flajolet, R Alur, R Wilhelm, RG Bartle, RW Floyd, S Gulwani, S Jost, T Kuwahara, TH Cormen, W Chin, WH Hesselink   +42 more
core   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Exploiting Small-Norm Polynomial Multiplication with Physical Attacks

Transactions on Cryptographic Hardware and Embedded Systems
We present a set of physical profiled attacks against CRYSTALS-Dilithium that accumulate noisy knowledge on secret keys over multiple signatures, finally leading to a full key recovery attack. The methodology is composed of two steps.
Olivier Bronchain, Melissa Azouaoui, Mohamed ElGhamrawy, Joost Renes, Tobias Schneider   +4 more
doaj   +1 more source

Photonics of Topological Magnetic Textures

Advanced Optical Materials, EarlyView.
Localized noncollinear magetic textures imprint their geometry and topology onto traversing photonic fields endowing them with orbital angular‐momentum, chirality, and magnetoelectric densities. Abstract Topological textures in magnetically ordered materials are an important case studies for fundamental research with promising applications in data ...
Vakhtang Jandieri, Ramaz Khomeriki, Daniel Erni, Nicolas Tsagareli, Qian Li, Douglas H. Werner, Jamal Berakdar   +6 more
wiley   +1 more source

Cost-Efficient Pipelined Modular Polynomial Multiplier for Post-Quantum Cryptography Saber

Quantum Reports
The development of quantum computers presents a great challenge for current cryptographic algorithms. Post-quantum cryptography has been proposed to secure against quantum computers in the near future.
Hua Li
doaj   +1 more source

On multiplicative decompositions of polynomial sequences, II [PDF]

Acta Arithmetica, 2018
In this paper, the relations between the zeta functions of smooth projective varieties over finite fields and the functions of degree \(0\) from the extended Selberg class \(S^{\sharp}\) have been considered. Let \(S_{0}^{\sharp}\) denote the subclass of degree \(0\) functions in \(S^{\sharp}\).
Hajdu, Lajos, Sárközy, András
openaire   +3 more sources

Enhanced Trapping with an Optimized Graphene‐Based Bowtie Plasmonic Nanotweezer: Design, Analysis, and Bioanalytical Applications

Advanced Photonics Research, EarlyView.
A graphene‐based bowtie plasmonic nanotweezer is designed and optimized using particle swarm optimization and transfer matrix analysis. The structure achieves strong field confinement, delivering trapping forces up to 6 nN W−1 for 10 nm bioparticles with sixfold lower power requirements than conventional designs.
Saba Ebrahimpanah, Mohammad Hazhir Mozaffari, Ali Farmani   +2 more
wiley   +1 more source