Results 51 to 60 of about 6,692,580 (276)

Space-efficient classical and quantum algorithms for the shortest vector problem [PDF]

Quantum Information and Computation, 2018
A lattice is the integer span of some linearly independent vectors. Lattice problems have many significant applications in coding theory and cryptographic systems for their conjectured hardness. The Shortest Vector Problem (SVP), which asks to find a shortest nonzero vector in a lattice, is one of the well-known problems that are believed to be hard to
Yanlin Chen, Kai-Min Chung, Ching-Yi Lai
openaire   +2 more sources

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Concrete Quantum Sieve for Shortest Vector Problem With Application to Lattice-Based Cryptography

IEEE Access
This paper presents a concrete quantum implementation and resource estimates for the Grover-assisted Nguyen–Vidick (NV) sieve oracle for solving the Shortest Vector Problem (SVP) in lattice-based cryptography. We focus on optimizing the product of
Hyunji Kim, Kyungbae Jang, Anubhab Baksi, Siyi Wang, Sumanta Chakraborty, Anupam Chattopadhyay, Hwajeong Seo   +6 more
doaj   +1 more source

Spatial aliasing and distortion of energy distribution in the wave vector domain under multi-spacecraft measurements [PDF]

Annales Geophysicae, 2009
Aliasing is a general problem in the analysis of any measurements that make sampling at discrete points. Sampling in the spatial domain results in a periodic pattern of spectra in the wave vector domain. This effect is called spatial aliasing, and it
Y. Narita, K.-H. Glassmeier, K.-H. Glassmeier   +2 more
doaj   +1 more source

Time-dependent stochastic shortest path(s) algorithms for a scheduled transportation network [PDF]

, 2005
Following on from our work concerning travellers’ preferences in public transportation networks (Wu and Hartley, 2004), we introduce the concept of stochasticity to our algorithms.
Wu, Q, Al-Dabass, D, Hartley, JK
core  

Genetic algorithms with elitism-based immigrants for dynamic shortest path problem in mobile ad hoc networks [PDF]

, 2009
This article is posted here with permission from the IEEE - Copyright @ 2009 IEEEIn recent years, the static shortest path (SP) problem has been well addressed using intelligent optimization techniques, e.g., artificial neural networks (ANNs), genetic ...
Yang, S, Shengxiang Yang, Cheng, H, Hui Cheng, Cheng, Hui, Yang, Shengxiang   +5 more
core   +1 more source

Morphology, Transport, and Dynamics of Protein Adsorption in Open‐Cell Metal Foam

Advanced Engineering Materials, EarlyView.
Stainless steel (SS) open‐cell foams are shown to adsorb more protein per unit area than previously reported 316L SS and chromium oxide surfaces under static and flow conditions. An integrated approach combining 3D pore imaging, flow simulation, and protein adsorption experiments characterizes the foam’s performance.
Chinmaya Prerana Inguva, Joseph Lavoie, Afsaneh Rabiei   +2 more
wiley   +1 more source

Improved Nguyen-Vidick heuristic sieve algorithm for shortest vector problem [PDF]

, 2011
In this paper, we present an improvement of the Nguyen-Vidick heuristic sieve algorithm for shortest vector problem in general lattices, which time complexity is 2^0.3836n polynomial computations, and space complexity is 2^0.2557n.
Mingjie Liu, Chengliang Tian, Xiaoyun Wang, Jingguo Bi   +3 more
core   +3 more sources

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Unique Shortest Vector Problem for max norm is NP-hard [PDF]

, 2008
The unique Shortest vector problem (uSVP) in lattice theory plays a crucial role in many public-key cryptosystems. The security of those cryptosystems bases on the hardness of uSVP.
Nguyen Hong Tan, Than Quang Khoat
core   +1 more source