Results 51 to 60 of about 353 (159)

Integrating Quadratic Polynomial and Symbolic Chaotic Map-Based Feistel Network to Improve Image Encryption Performance

IEEE Access
This research introduces an innovative image encryption method that amalgamates two secure and efficient chaotic maps, namely a 2D Simplified Quadratic Polynomial Map (2D-SQPM) and a 2D Symbolic Chaotic Map (2D-SCM), within an enhanced Feistel network ...
Edy Winarno, Wiwien Hadikurniawati, Kristiawan Nugroho, Veronica Lusiana   +3 more
doaj   +1 more source

A Brief Note on Supercooled Glacial Deep Waters

Paleoceanography and Paleoclimatology, Volume 40, Issue 12, December 2025.
Abstract According to hydrographic profiles, approximately 2%–5% of the present‐day deep Southern Ocean contains supercooled waters that are below the freezing point. Which role these supercooled waters may have played under glacial conditions is an open question.
Miho Ishizu, Axel Timmermann, Kyung‐Sook Yun   +2 more
wiley   +1 more source

Investigation of the Thermal Conductivity of Dry and Icy Lunar Regolith Simulants

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract This study investigates the thermal conductivity of lunar regolith simulants, both with and without the addition of ice. A novel icy regolith simulant was developed, combining microgranular water ice particles and lunar highlands simulant LHS‐1.
Henning Wache, Luca Kiewiet, Paul Zabel, Jürgen Blum   +3 more
wiley   +1 more source

Differential fault attack on lightweight block cipher Klein

Tongxin xuebao, 2016
As a lightweight block cipher algorithm based on SP structure,Klien has the characteristics of high efficiency and low energy consumption.By analyzing the S-boxes differential propagation path,it was found that under the condi-tion of same input and ...
Yong-juan WANG, Quan-yu2 REN, Shi-yi ZHANG   +2 more
doaj   +2 more sources

Evolutionary history and seascape genomics of Harbour porpoises (Phocoena phocoena) across environmental gradients in the North Atlantic and adjacent waters

Molecular Ecology Resources, Volume 25, Issue 5, July 2025.
Abstract The Harbour porpoise (Phocoena phocoena) is a highly mobile cetacean species primarily occurring in coastal and shelf waters across the Northern hemisphere. It inhabits heterogeneous seascapes broadly varying in salinity and temperature. Here, we produced 74 whole genomes at intermediate coverage to study Harbour porpoise's evolutionary ...
Enrique Celemín, Marijke Autenrieth, Anna Roos, Iwona Pawliczka, María Quintela, Ulf Lindstrøm, Harald Benke, Ursula Siebert, Christina Lockyer, Per Berggren, A. Amaha Özturk, Bayram Özturk, Véronique Lesage, Ralph Tiedemann   +13 more
wiley   +1 more source

Turbulence Characteristics of Ice‐Free Radiatively Driven Convection in a Deep, Unstratified Lake

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract This study examines data collected with an autonomous underwater glider during a period of vigorous radiatively driven convection (RDC) and low winds in deep, unstratified Lake Superior. Conductivity, temperature and depth (CTD) measurements reveal distinct convective plumes of warm downwelling water with temperature anomalies of ∼0.1° ${\sim}
Kenneth Larrieu, Oscar Sepúlveda Steiner, Drew M. Friedrichs, Jasmin B. T. McInerney, Jay A. Austin, Alexander L. Forrest   +5 more
wiley   +1 more source

An ultralightweight RFID authentication protocol based on Feistel cipher structure

Security and Communication Networks, 2016
AbstractRadio‐frequency identification (RFID) is a technology for automated identification of objects and people. RFID raises two main concerns: security and privacy. RFID tags are likely to proliferate into billions, and nowadays, security and privacy of RFID systems are to be continuously improved.
Bensalah Mustapha, Mustapha Djeddou, Karim Drouiche   +2 more
openaire   +1 more source

Accounting for Compound Flooding Can Prevent Maladaptation—A Baltic Sea Case Study

Earth's Future, Volume 13, Issue 2, February 2025.
Abstract Estuarine areas are currently at risk of compound flooding, the frequency and intensity of which is expected to increase with climate change. Even though efforts are made to adapt against single flood drivers using hard protection, potential subsequent changes in flood risk due to compound flooding are often overlooked in flood risk ...
Sunna Kupfer, Athanasios T. Vafeidis, Leigh R. MacPherson   +2 more
wiley   +1 more source

Links between Quantum Distinguishers Based on Simon’s Algorithm and Truncated Differentials

IACR Transactions on Symmetric Cryptology
In this paper, we study the quantum security of block ciphers based on Simon’s period-finding quantum algorithm. We explored the relations between periodic functions and truncated differentials. The basic observation is that truncated differentials with
Zejun Xiang, Xiaoyu Wang, Bo Yu, Bing Sun, Shasha Zhang, Xiangyong Zeng, Xuan Shen, Nian Li   +7 more
doaj   +1 more source

Hydraulics of Channelized Flow in Ice‐Supersaturated Debris: 1. Rock Glacier Hydrology in Alpine Glacial‐Periglacial Systems

Water Resources Research, Volume 61, Issue 2, February 2025.
Abstract Frozen sediment accumulations, including rock glaciers, talus, and moraines, constitute complex aquifers in permafrost‐affected terrain. The spatial distribution of permafrost ice largely governs the flow of water through the subsurface, which exhibits a spectrum of flow patterns, ranging from diffuse flow through a porous matrix to ...
Magdalena Seelig, Simon Seelig, Karl Krainer, Gerfried Winkler   +3 more
wiley   +1 more source