Results 131 to 140 of about 11,676 (284)

A Dual‐Memory Ferroelectric Transistor Emulating Synaptic Metaplasticity for High‐Speed Reservoir Computing

open access: yesAdvanced Electronic Materials, EarlyView.
A CMOS‐compatible ferroelectric transistor harnesses the interplay between stable gate polarization memory and volatile non‐quasi‐static channel charge dynamics to emulate how biological synapses regulate their own plasticity. This brain‐inspired dual‐memory mechanism, realized in a single device, enables a physical reservoir computer that solves ...
Yifan Wang   +8 more
wiley   +1 more source

A Novel code-based public-key encryption using semi-MDPC codes

open access: yesCybersecurity
BIKE is a post-quantum public-key encryption scheme based on Moderate-Density Parity-Check (MDPC) codes, gaining significant attention for its small public key and ciphertext sizes.
Qingyu Liu, Lusheng Chen
doaj   +1 more source

A new iterative computer search algorithm for good quasi-twisted codes

open access: yes, 2015
As a generalization to cyclic and consta-cyclic codes, quasi-twisted (QT) codes contain many good linear codes. During the last twenty years, a lot of record-breaking codes have been found by computer search for good QT codes.
Chen, Eric Zhi,
core   +1 more source

Enhanced Resistive Switching Uniformity in Tantalum Oxide Memristor Devices via Copper Implantation

open access: yesAdvanced Electronic Materials, EarlyView.
Metal oxide memristor devices typically suffer from uncontrolled forming processes and limited resistive switching uniformity due to the stochastic formation of an oxygen vacancy filament. Improved resistive switching uniformity in Ta2O5 memristor is developed by Cu implantation in the switching oxide.
Shaochuan Chen, Ilia Valov
wiley   +1 more source

Gray images of the linear codes and their dual codes over F4+uF 4

open access: yesTongxin xuebao, 2012
The linear codes over ring F4+uF4 and field F4 were studied.By using the Gray weight wG ,the Gray distance dG of codes C over F4+uF4,and the Gray map ψ from (F4+uF4)n to F 4 2n ,the Gray image ψ(C)of linear codes C over F4+uF4 were ...
Xiu-sheng LIU, Hua-lu LIU
doaj   +2 more sources

Low-density parity-check codes and their rateless relatives

open access: yes, 2011
This survey guides the reader through the extensive open literature that is covering the family of low-density parity-check LDPC codes and their rateless relatives.
Sheng Chen   +5 more
core   +1 more source

Redox Complexity in Sodium Manganese Hexacyanomanganate and Its Influence on Sodium‐Ion Storage Performance

open access: yesAdvanced Energy Materials, EarlyView.
The role of each Mn site in the Na3‐xMn[Mn(CN)6]·zH2O compounds’ redox activity was investigated using a combined experimental–computational approach, which shows that only the low‐spin Mn‐C site undergoes redox changes (Mn1+ to Mn4+), while high‐spin Mn‐N remains unchanged. The study confirms the presence of the Mn1+ intermediate and newly reveals its
Zhenying Li   +11 more
wiley   +1 more source

Quasi-cyclic LDPC codes from difference families

open access: yes
We consider in this paper regular and nearly regular quasi-cyclic low-density parity-check (LDPC) codes, derived from families of difference sets. The codes have girth at least 6, and sparse parity-check matrices.
Sarah Johnson (21132320)   +1 more
core  

Multilevel structured low-density parity-check codes for AWGN and Rayleigh channels

open access: yes, 2010
We propose a novel class of protograph low-density parity-check (LDPC) codes having a combinatorial rather than a random structure, which are termed multilevel-structured (MLS) LDPC codes. It is demonstrated that they posses a strikingly simple structure
Chen, Sheng   +2 more
core  

Donor–Acceptor Covalent Organic Framework Enables Ambipolar Charge Storage in Aluminum‐Ion Energy Storage

open access: yesAdvanced Energy Materials, EarlyView.
A donor–acceptor covalent organic framework is designed as an ambipolar cathode for aluminum‐ion energy storage. The crystalline, microporous architecture enables intrinsic charge transport without conductive additives. Multi‐electron redox activity at donor and acceptor sites supports high capacity, excellent stability, and efficient reversible ...
Cataldo Valentini   +11 more
wiley   +1 more source

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