Results 81 to 90 of about 3,228,583 (292)

Differential Interference Suppression for SDMA-OFDM Based on Joint Multiple-Symbol Filtering and Detection [PDF]

, 2011
This paper presents a multiple-symbol differential spatial division multiple access (MS-DSDMA) OFDM system conceived for low-complexity and high-bandwidth-efficiency applications operating in time-varying fading channels, where no channel estimation is ...
Wang, Li, Li Wang, Hanzo, Lajos, Lajos Hanzo   +3 more
core   +2 more sources

Multi-Layer Superimposed Transmission for Optical Wireless Scattering Communication

IEEE Photonics Journal, 2019
We investigate the multi-layer superimposed transmission for optical wireless scattering communication where the symbol boundaries on different signal layers are not necessarily aligned in the time domain.
Guanchu Wang, Chen Gong, Zhimeng Jiang, Zhengyuan Xu   +3 more
doaj   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Automated extraction and parsing of key information in complex substation drawings

Discover Applied Sciences
Substation drawings are high-density technical artifacts that serve as the authoritative data source across the entire power-infrastructure lifecycle.
Jiaying Yang, Yuyan Chen, Chen Qian, Yiyang Wang, Xiaoyang Shen, Yiheng Zeng   +5 more
doaj   +1 more source

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

Advanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar, Shobhit Pratap Singh, Gaurav Mohanty, Praveen Kumar   +3 more
wiley   +1 more source

Closed-Form Enhanced Detection of Clipped OFDM Symbol

IEEE Access
Large peak-to-average power ratio (PAPR) and carrier frequency offset (CFO) are dominant impairments of the orthogonal frequency-division multiplexing (OFDM) symbol transmission that is applied within the state-of-the-art wireless operator networks.
Adriana Lipovac, Ante Mihaljevic, Vlatko Lipovac   +2 more
doaj   +1 more source

A Novel Joint Channel Estimation and Symbol Detection Receiver for Orthogonal Time Frequency Space in Vehicular Networks. [PDF]

Entropy (Basel), 2023
Zhang X, Wen H, Yan Z, Yuan W, Wu J, Li Z.   +5 more
europepmc   +1 more source

Symbol detection with network coding in wireless channels

, 2013
For multi-sources transmitting to a common sink with assistance of relays where network coding is used, different symbols may experience different fading and noise levels, and there is a need to calculate the average symbol detection error probability at
Xiang, Wei, Cao, Lei
core   +1 more source

Microstructure‑Dependent Phase Transformations Under High‑Pressure Laser Heating in Additively Manufactured AlCrFe2Ni2

Advanced Engineering Materials, EarlyView.
Additively manufactured AlCrFe2Ni2 with contrasting BCC/B2‐dominant and lamellar FCC + BCC/B2 microstructures exhibits the same pressure‐induced BCC/B2 → HCP transformation. Under laser heating at high pressure, HCP is destabilized, and a cubic BCC/B2 + FCC assemblage is recovered, while the lower‐scan‐speed microstructure transforms at a lower ...
Raimundas Sereika, Hunter Kantelis, Yogesh K. Vohra, Shengbiao Zhang, Wuxian Yang, Wen Chen   +5 more
wiley   +1 more source

Automated Icon Extraction from Tourism Maps: A Synergistic Approach Integrating YOLOv8x and SAM

ISPRS International Journal of Geo-Information
Map symbols play a crucial role in cartographic representation. Among these symbols, icons are particularly valued for their vivid and intuitive designs, making them widely utilized in tourist maps.
Di Cao, Xinran Yan, Jingjing Li, Jiayao Li, Lili Wu   +4 more
doaj   +1 more source