Results 61 to 70 of about 49,332 (258)

Study of Solid Particle Erosion on Helicopter Rotor Blades Surfaces

Applied Sciences, 2020
In this study, titanium alloy (Ti-4Al-1.5Mn), magnesium alloy (Mg-Li9-A3-Zn3), or aluminum alloy (Al7075-T6) were used to construct the shell model of helicopter rotor blade to study the solid particle erosion of helicopter rotor blades.
Xupeng Bai, Yongming Yao, Zhiwu Han, Junqiu Zhang, Shuaijun Zhang   +4 more
doaj   +1 more source

Simulation of Collision Resistant Secure Sum Protocol

CoRR, 2014
secure multi-party computation is widely studied area in computer science. It is touching all most every aspect of human life. This paper demonstrates theoretical and experimental results of one of the secure multi-party computation protocols proposed by Shukla et al. implemented using visual C++.
Samiksha Shukla, G. Sadashivappa, Durgesh Kumar Mishra   +2 more
openaire   +2 more sources

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

Advanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda, Md Rashed Nizam, Walker J. Tuff, Collin C. Wyant, Maksym Zhukovskyi, Matthew R. Rosenberger, Botond Sánta, Edward C. Kinzel, Robert A. Hughes, Svetlana Neretina   +9 more
wiley   +1 more source

Are Neural Networks Collision Resistant?

IACR Cryptol. ePrint Arch.
When neural networks are trained to classify a dataset, one finds a set of weights from which the network produces a label for each data point. We study the algorithmic complexity of finding a collision in a single-layer neural net, where a collision is defined as two distinct sets of weights that assign the same labels to all data.
Marco Benedetti, Andrej Bogdanov, Enrico M. Malatesta, Marc Mézard, Gianmarco Perrupato, Alon Rosen, Nikolaj I. Schwartzbach, Riccardo Zecchina   +7 more
openaire   +4 more sources

Solution‐Processed Thin‐Film Transistors With Tunable Temporal Dynamics for Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Solution‐processed CNT and CNT/P3HT ion‐gated transistors exhibit materials‐defined synaptic timescales: fast CNT devices for high‐frequency spiking and slow hybrid devices for temporal integration. Embedding these dynamics into coupled reservoir‐computing and spiking neural network simulations reveals that a Hybrid‐Reservoir / CNT‐SNN architecture ...
Kevin Schnittker, Haoyi Lin, Zahra Bahrami, Strahinja Marinkovic, Sung Hyun Lee, Joseph Andrews   +5 more
wiley   +1 more source

Stam’s Conjecture and Threshold Phenomena in Collision Resistance [PDF]

, 2012
At CRYPTO 2008 Stam [8] conjectured that if an $$m\!+\!s$$-bit to s-bit compression function F makes r calls to a primitive f of n-bit input, then a collision for F can be obtained with high probability using $$r2^{nr-m/r+1}$$ queries to f, which is sometimes less than the birthday bound.
John P. Steinberger, Xiaoming Sun 0001, Zhe Yang   +2 more
openaire   +2 more sources

On the power of memory in the design of collision resistant hash functions [PDF]

, 1993
Collision resistant hash functions are an important basic tool for cryptographic applications such as digital signature schemes and integrity protection based on “fingerprinting”. This paper proposes a new efficient class of hash functions based on a block cipher that allows for a tradeoff between security and speed.
Govaerts, René, Preneel, Bart, Vandewalle, Joos   +2 more
openaire   +2 more sources

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source

A Hierarchical and Prioritized Framework in Coordinated Maneuver of Multiple UAVs Based on Guidance Regulator

Journal of Aerospace Technology and Management, 2019
The structure of mission management and maneuver planning for multiple UAVs in close formation flight is investigated. This article provides a distributed and priority-based platform of guidance and control model to meet requirements for each coordinated
Hassan Haghighi, Seyed Hossein Sadati, Jalal Karimi, Mohammad Mehdi Dehghan   +3 more
doaj   +3 more sources

Analysis of structural behavior during collision event accounting for bow and side structure interaction

Theoretical and Applied Mechanics Letters, 2017
The main goal of this study was to investigate the effects of selected ship collision parameter values on the characteristics of the absorbed energy in several ship collision scenarios. Non-linear simulations were performed using a finite element method (
Aditya Rio Prabowo, Dong Myung Bae, Jung Min Sohn, Ahmad Fauzan Zakki, Bo Cao, Qing Wang   +5 more
doaj   +1 more source