Results 51 to 60 of about 447,111 (170)
Chemistry – A European Journal, Volume 31, Issue 2, January 9, 2025.The parahydrogen‐derived 13C hyperpolarization can be generated with high field polarization transfer sequences. We attempt to circumvent the need for a dedicated polarizer by using the MRI system to produce the substrate. We study the experimental conditions imposed by the MRI setup and mitigate these effects via simulations and experiments and reach ...
Henri de Maissin +7 more
wiley +1 more source
Pseudo-random graphs and bit probe schemes with one-sided error
, 2011 We study probabilistic bit-probe schemes for the membership problem. Given a set A of at most n elements from the universe of size m we organize such a structure that queries of type "Is x in A?" can be answered very quickly.
Romashchenko, Andrei
core +3 more sources
Engineering Reports, Volume 7, Issue 1, January 2025.We develop an anonymous authentication scheme for smart cities based on physically unclonable function and user biometrics. This scheme is shown to be robust against active and passive attacks. ABSTRACT Smart cities amalgamate technologies such as Internet of Things, big data analytics, and cloud computing to collect and analyze large volumes of data ...
Vincent Omollo Nyangaresi +4 more
wiley +1 more source
Linear time Constructions of some $d$-Restriction Problems [PDF]
arXiv, 2014 We give new linear time globally explicit constructions for perfect hash families, cover-free families and separating hash functions.
arxiv
IET Blockchain, Volume 5, Issue 1, January/December 2025.This research introduces a blockchain‐based framework designed to securely share medical images, with a focus on maintaining data integrity and privacy. The system uses image compression and a deep neural network‐based subject sensitive hashing (SSH) to ensure the integrity of the feature maps, storing encrypted images on the InterPlanetary File System
Yeasir Arafat +7 more
wiley +1 more source
A Simple Hash Class with Strong Randomness Properties in Graphs and Hypergraphs [PDF]
arXiv, 2016 We study randomness properties of graphs and hypergraphs generated by simple hash functions. Several hashing applications can be analyzed by studying the structure of $d$-uniform random ($d$-partite) hypergraphs obtained from a set $S$ of $n$ keys and $d$ randomly chosen hash functions $h_1,\dots,h_d$ by associating each key $x\in S$ with a hyperedge $\
arxiv
Sprinklers: A Randomized Variable-Size Striping Approach to Reordering-Free Load-Balanced Switching [PDF]
, 2014 Internet traffic continues to grow exponentially, calling for switches that can scale well in both size and speed. While load-balanced switches can achieve such scalability, they suffer from a fundamental packet reordering problem.
Dai, Jim +4 more
core
Physical layer security in satellite communication: State‐of‐the‐art and open problems
IET Communications, Volume 19, Issue 1, January/December 2025.This paper first classifies contemporary satellite communication networks into five domains and then analyse the use of PLS in each domain; these domains are hybrid satellite‐terrestrial networks, satellite‐based IoT, navigation satellite systems, FSO‐based satellites, and inter‐satellite communications.
Nora Abdelsalam +2 more
wiley +1 more source
Dynamic smart contracts framework on Ethereum private blockchain for real estate management
The Journal of Engineering, Volume 2025, Issue 1, January/December 2025.We propose a conceptual framework for a private blockchain based on the Ethereum platform, utilizing Proof of Authority (PoA) as the consensus mechanism, specifically designed for property transactions. Abstract Blockchain technology enables the recording of information in an immutable manner, making it extremely difficult or nearly impossible to alter,
Huma Jamshed +5 more
wiley +1 more source