Results 31 to 40 of about 50,282 (262)

Design and Analysis of Time-Invariant SC-LDPC Convolutional Codes With Small Constraint Length

, 2017
In this paper, we deal with time-invariant spatially coupled low-density parity-check convolutional codes (SC-LDPC-CCs). Classic design approaches usually start from quasi-cyclic low-density parity-check (QC-LDPC) block codes and exploit suitable ...
Baldi, Marco, Battaglioni, Massimo, Cancellieri, Giovanni, Chiaraluce, Franco, Tasdighi, Alireza   +4 more
core   +1 more source

Weight Distributions of Regular Low-Density Parity-Check Codes over Finite Fields [PDF]

, 2011
The average weight distribution of a regular low-density parity-check (LDPC) code ensemble over a finite field is thoroughly analyzed. In particular, a precise asymptotic approximation of the average weight distribution is derived for the small-weight ...
Chen, Yan, Honold, Thomas, Qiu, Peiliang, Yang, Shengtian, Zhang, Zhaoyang   +4 more
core   +1 more source

Perfluorooctanoic Acid Exposure Causes Macrophage Ammonia Retention and Induces Spontaneous Miscarriages

Advanced Science, EarlyView.
PFOA exposure induces pregnancy loss by promoting glutaminolysis, which further causes ammonia accumulation in macrophages. Cellular ammonia retention results in damage to mitochondria and lysosomes, which leads to cell death eventually. Impaired lysosomes also decrease the secretion of the Cathepsin B (CTSB), and attenuate macrophage infiltration and ...
Yongbo Zhao, Yijun Zhang, Hanyu Rao, Jiani Sun, Zhiyi Pan, Liping Jin, Yan Zhao   +6 more
wiley   +1 more source

Research on LDPC Coding for Free Space Optical Communication with Modified Bessel-Gaussian Beams Based on K-distribution

MATEC Web of Conferences, 2018
We investigate the performance of low-density parity-check (LDPC) coding for free space optical communication (FSO) with modified Bessel-Gaussian (MBG) beams based on K-distribution.
Wang Jin, Zeng Fujiang, Liang Qingqing, Zhang Xiaofeng   +3 more
doaj   +1 more source

Construction of Short-length High-rates Ldpc Codes Using Difference Families [PDF]

, 2007
Low-density parity-check (LDPC) code is linear-block error-correcting code defined by sparse parity-check matrix. It isdecoded using the massage-passing algorithm, and in many cases, capable of outperforming turbo code.
Hamdani, D. (Deny), Safrianti, E. (Ery)
core  

Chloroplast Stress Signals Orchestrate Epidermis‐Specific Remodeling of Mitochondria and ER Under High Light

Advanced Science, EarlyView.
High light exposure triggers an epidermis‐specific remodeling of mitochondria and ER in Arabidopsis, driven by chloroplast‐derived signals. Live‐cell imaging shows that HL rapidly suppresses mitochondrial motility, followed by fusion‐driven elongation and ER cisternal expansion.
Evan R. Angelos, Hee‐Seung Choi, Jingzhe Guo, Andrea A. Zanini, Tessa M. Burch‐Smith, Emily Snyder, Matthew Part, Wilhelmina van de Ven, Manhoi Hur, Gerd Ulrich Balcke, Alain Tissier, Quanqing Zhang, Katayoon Dehesh   +12 more
wiley   +1 more source

Stopping Set Distributions of Some Linear Codes [PDF]

, 2010
Stopping sets and stopping set distribution of an low-density parity-check code are used to determine the performance of this code under iterative decoding over a binary erasure channel (BEC).
Fu, Fang-Wei, Jiang, Yong, Xia, Shu-Tao
core  

A Fast Convergence Density Evolution Algorithm for Optimal Rate LDPC Codes in BEC

, 2014
We derive a new fast convergent Density Evolution algorithm for finding optimal rate Low-Density Parity-Check (LDPC) codes used over the binary erasure channel (BEC).
Tavakoli, Hassan
core   +1 more source

AI‐Driven Acceleration of Fluorescence Probe Discovery

Advanced Science, EarlyView.
We present PROBY, an AI model trained on large‐scale datasets to predict key photophysical properties and accelerate the discovery of target‐specific fluorescent probes. By screening a target‐annotated library, PROBY identifies candidate probes for diverse targets and could guide probe optimization, enabling a range of in vitro and in vivo imaging ...
Xuefeng Jiang, Yanbo Li, Xue Tian, Sen Yang, Ruina Luo, Cenxing Zhou, Yuxuan Liu, Jingying Hu, Sen Feng, Lu Gan, Chongzhao Ran, Kun‐Hsing Yu, Junhan Zhao, Xiao Han, Xuan Zhai, Yuntao Jia, Jiapei Dai, Xiyue Wang, Biyue Zhu   +18 more
wiley   +1 more source

Research on unequal error protection of irregular LDPC codes

Tongxin xuebao, 2005
An irregular low-density parity-check （LDPC） code with unequal error protection （UEP） property was proposed. A weight-increasing parity-check （WIPC） matrix was constructed.
MA Pi-ming, YUAN Dong-feng, YANG Xiu-mei
doaj   +2 more sources