Results 71 to 80 of about 3,412 (199)

H.264 rate-distortion model based joint source channel coding scheme over wireless channels

Tongxin xuebao, 2008
A new rate-distortion model of H.264 encoder was firstly set up according to the rate distortion（R-D） charac-teristics of H.264.Then,the end-to-end video transmission distortion was analyzed and based on the R-D model of the H.264 encoder and the error ...
GAO Xue-juan, ZHUO Li, SHEN Lan-sun
doaj   +2 more sources

WHO Reporting System for Lung Cytopathology: Insights Into the Insufficient/Inadequate/Non‐Diagnostic, Atypical and Suspicious for Malignancy Categories and How to Use Them

Cytopathology, Volume 36, Issue 5, Page 434-442, September 2025.
The WHO System is an international effort to standardise category definitions, establish the key diagnostic cytopathological features of entities of the lung, propose the best use of ancillary tests in lung specimens, encourage the use of standardised pathology reports containing essential components in an integrated report and propose estimates of the
Zahra Maleki, Sule Canberk, Andrew Field
wiley   +1 more source

Community College Online [PDF]

, 2014
In this report we find that the majority of Americans enrolling in higher education today do not match the mainstream image of recent high school graduates leaving home for the first time to settle into dorm life at a residential university campus.
Rachel Fishman
core  

Serum Alkaline Phosphatase Levels in Pediatric Kikuchi‐Fujimoto Disease: A Retrospective Observational Analysis

Immunity, Inflammation and Disease, Volume 13, Issue 1, January 2025.
The diagnosis of Kikuchi‐Fujimoto disease remains challenging and often requires invasive biopsy. Serum alkaline phosphatase levels were < 50% of the age‐ and sex‐specific median values in patients with Kikuchi‐Fujimoto's disease. Decreased serum alkaline phosphatase levels, mainly when assessed as a percentage of age‐ and sex‐specific reference ...
Shintaro Fujiwara, Yousuke Higuchi, Junya Shimizu   +2 more
wiley   +1 more source

Deep Learning‐Driven Semantic Communication With Attention Modules

IET Communications, Volume 19, Issue 1, January/December 2025.
In this study, an innovative architecture is proposed to enhance the performance of semantic communication networks by leveraging deep learning and Joint Source‐Channel Coding. A fundamental challenge in this field is the strong dependence of conventional networks on a fixed Signal‐to‐Noise Ratio (SNR) during training, which leads to performance ...
Zahra Mohammadi, Mohammad Ali Amirabadi, Mohammad Hossein Kahaei   +2 more
wiley   +1 more source

A Non‐Binary Dual Cascade Polar Codes Construction and Low‐Complexity SCL Decoding

Electronics Letters, Volume 61, Issue 1, January/December 2025.
First, we design an error‐correction approach including two cascade non‐binary polar coding (NB‐CPolar) structures and a cyclic redundancy check (CRC) code. Second, we propose a low‐complexity decoding algorithm based on non‐binary successive cancellation list (NB‐LSCL) decoding.
Baoxin Su, Shufeng Li, Junwei Zhang, Evgeny Belyaev   +3 more
wiley   +1 more source

Experimental Research on Image Transmission Over One Hundred Metres With Limited Bandwidth in a Semantic Ultraviolet Communication System

IET Optoelectronics, Volume 19, Issue 1, January/December 2025.
In order to measure the impact of interference light signals and the noise from optoelectronic devices on the signal‐to‐noise ratio, we proposed and built an experimental digital SUC system, as shown in the figure below. ABSTRACT Currently, ultraviolet (UV) communication is proposed for use in unmanned aerial vehicle (UAV) communication, while the ...
Qibin Xu, Xukun Chen, Dahai Han, Min Zhang   +3 more
wiley   +1 more source

Diffusion-Aided Joint Source Channel Coding for High Realism Wireless Image Transmission

IEEE Transactions on Machine Learning in Communications and Networking
Deep learning-based joint source-channel coding (deep JSCC) has been demonstrated to be an effective approach for wireless image transmission. However, many current approaches utilize an autoencoder framework to optimize conventional metrics such as Mean
Mingyu Yang, Bowen Liu, Boyang Wang, Hun-Seok Kim   +3 more
doaj   +1 more source

Exponential Golomb and Rice Error Correction Codes for Generalized Near-Capacity Joint Source and Channel Coding

IEEE Access, 2016
The recently proposed unary error correction (UEC) and Elias gamma error correction (EGEC) codes facilitate the near-capacity joint source and channel coding (JSCC) of symbol values selected from large alphabets at a low complexity.
Matthew F. Brejza, Tao Wang, Wenbo Zhang, David Al-Khalili, Robert G. Maunder, Bashir M. Al-Hashimi, Lajos Hanzo   +6 more
doaj   +1 more source

Four new Aphodius Illiger from pocket gopher burrows in Arizona, Utah, Kansas and Nebraska (Coleoptera: Scarabaeidae: Aphodiinae) [PDF]

, 2006
We describe four new species of winter-active Aphodius (sensu lato) from pocket gopher burrows in Arizona, Utah, Kansas, and Nebraska: A. cacabatus, A. paulseni, A. skillmani, and A. utopensis.
Skelley, Paul E., Warner, William B.
core   +1 more source