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9,814 Results Found

  • Article
  • Open Access
409 Views
29 Pages

25 September 2026

Reconfigurable intelligent surfaces (RISs) can improve spectral efficiency (SE) and energy efficiency (EE) in cell-free massive multiple-input multiple-output (CF-mMIMO) networks by coherently controlling reflected propagation paths. Outdoor panels,...

(This article belongs to the Topic Advanced Propagation Channel Estimation Techniques for Sixth-Generation (6G) Wireless Communications)
  • Article
  • Open Access
2 Citations
2,223 Views
16 Pages

In this work, three types of photopolymer printing plates for packaging printing were subjected to varied UV (ultraviolet radiation) post-treatments, and their surface free energy (SFE) components were calculated. SFE of the photopolymer printing pla...

(This article belongs to the Section Automation and Control Systems)
  • Article
  • Open Access
493 Views
19 Pages

Optimizing Mounting Techniques for FBG Sensors to Minimize Measurement Errors in Concrete Deformation Tracking

  • Nurzhigit Smailov,
  • Torekhan Zhadiger,
  • Beibarys Sekenov,
  • Aziskhan Amir and ,
  • Gulbakhar Yussupova,
  • Ainur Kuttybayeva,
  • Askhat Batyrgaliyev,
  • Mukhit Turumbetov and
  • Zhiger Zhanatayuly
  • + 4 authors+ 0 author

11 September 2026

The reliability of fiber-optic Bragg grating (FBG) sensors for monitoring reinforced concrete structures is determined by the efficiency of strain transfer across the sensor-structure interface. However, mounting methods are often chosen empirically,...

  • Article
  • Open Access
559 Views
22 Pages

Background: Burn extent guides triage, transfer and fluid resuscitation, yet its clinical estimation is imprecise and observer-dependent. Multimodal large language models (MLLMs) process clinical photographs without task-specific training, but their...

(This article belongs to the Section Biosignal Processing)
  • Article
  • Open Access
91 Citations
14,640 Views
25 Pages

21 March 2020

Detecting change-points and trends are common tasks in the analysis of remote sensing data. Over the years, many different methods have been proposed for those purposes, including (modified) Mann–Kendall and Cox–Stuart tests for detecting trends; and...

  • Article
  • Open Access
18 Citations
6,624 Views
19 Pages

17 January 2018

The micro-electro-mechanical system (MEMS) resonator developed based on surface processing technology usually changes the section shape either due to excessive etching or insufficient etching. In this paper, a section parameter is proposed to describ...

(This article belongs to the Special Issue Micro-Resonators: The Quest for Superior Performance)
  • Article
  • Open Access
2 Citations
1,906 Views
23 Pages

Error Separation Method for Geometric Distribution Error Modeling of Precision Machining Surfaces Based on K-Space Spectrum

  • Zhichao Sheng,
  • Jian Xiong,
  • Zhijing Zhang,
  • Taiyu Su and ,
  • Min Zhang,
  • Qimuge Saren and
  • Xiao Chen
  • + 2 authors+ 0 author

18 December 2024

The geometric error distributed on components’ contact surfaces is a critical factor affecting assembly accuracy and precision instrument stability. Effective error separation methods can improve model accuracy, thereby aiding in performance pr...

(This article belongs to the Special Issue Applications of Manufacturing and Measurement Sensors: 2nd Edition)
  • Article
  • Open Access
174 Views
19 Pages

Non-Linear Responses of Urban Land Surface Temperature to Vapor Pressure Deficit and Vegetation Density in an Arid Oasis City

  • Ran Wang,
  • Zongyang Jin,
  • Peng Yu,
  • Zengda Li and ,
  • Dongming Zhang and
  • Conghong Huang
  • + 1 author+ 0 author

20 October 2026

Urban warming threatens arid oasis cities, yet vegetation cooling efficiency is non-linearly moderated by atmospheric dryness and structural density. Using a multi-year summer satellite composite from 2020 to 2025 in Urumqi, China, this study calibra...

(This article belongs to the Section Land – Observation and Monitoring)
  • Article
  • Open Access
591 Views
17 Pages

Modeling and Error Compensation for Concentric Grinding of Spherical Surfaces

  • Baozhen Li,
  • Keyan Song,
  • Dongxu Wu,
  • Lin Sun and
  • Yunfei Li

To improve the form accuracy of spherical surfaces generated by cup-wheel grinding, this paper presents a geometric modeling and error compensation method for concentric grinding of spherical surfaces. A cup-shaped arc grinding wheel, hereafter refer...

(This article belongs to the Special Issue Advanced Manufacturing Technology and Systems, 4th Edition)
  • Article
  • Open Access
11 Citations
4,481 Views
16 Pages

A Novel System of Mixed RF/FSO UAV Communication Based on MRR and RIS by Adopting Hybrid Modulation

  • Jia Yuan,
  • Xiaoyi Wang,
  • Meng Jin,
  • Wenyi Liu and ,
  • Ruihuan Wu,
  • Zhongchao Wei,
  • Dongmei Deng and
  • Hongzhan Liu
  • + 3 authors+ 0 author

In this paper, we propose a mixed radio frequency (RF)/free space optical (FSO) unmanned aerial vehicle (UAV) communication system, based on modulating retro-reflector (MRR) and reconfigurable intelligent surface (RIS), which adopts the hybrid L-ary...

(This article belongs to the Special Issue Optical Wireless Communications Systems)
  • Article
  • Open Access
5 Citations
2,783 Views
21 Pages

Accurate registration between medical images and patient anatomy is crucial for surgical navigation systems in minimally invasive surgeries. This study introduces a novel deep learning-based refinement step to enhance the accuracy of surface registra...

(This article belongs to the Special Issue Optical Imaging for Biomedical Applications)
  • Article
  • Open Access
5 Citations
2,729 Views
27 Pages

Unmanned surface vehicles (USVs) have garnered significant attention across various application fields. A sufficiently accurate kinetic model is essential for achieving high-performance navigation and control of USVs. However, time-varying unobservab...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
1,045 Views
24 Pages

29 April 2026

Reconfigurable intelligent surfaces (RISs) have recently attracted attention as a potential solution for improving the reliability of optical wireless communication links, especially when direct transmission (DT) becomes severely degraded due to dyna...

(This article belongs to the Section Photonics and Optical Communications)
  • Article
  • Open Access
23 Citations
6,596 Views
25 Pages

Accuracy Assessment on MODIS (V006), GLASS and MuSyQ Land-Surface Albedo Products: A Case Study in the Heihe River Basin, China

  • Xiaodan Wu,
  • Jianguang Wen,
  • Qing Xiao,
  • Dongqin You and ,
  • Baocheng Dou,
  • Xinwen Lin and
  • Andreas Hueni
  • + 2 authors+ 0 author

16 December 2018

This study assessed accuracies of MCD43A3, Global Land-Surface Satellite (GLASS) and forthcoming Multi-source Data Synergized Quantitative Remote Sensing Production system (MuSyQ) albedos using ground observations and Huan Jing (HJ) data over the Hei...

(This article belongs to the Special Issue Advanced Topics in Remote Sensing)
  • Article
  • Open Access
7 Citations
2,714 Views
22 Pages

22 April 2025

Time-varying mesh stiffness (TVMS) of the internal mesh transmission is a significant source of excitation that causes vibration and noise in planetary gear systems, and is also an important parameter in dynamics analysis. Currently, the calculation...

  • Article
  • Open Access
1,094 Views
13 Pages

A Partitioned IRS-Aided Transmit SM Scheme for Wireless Communication

  • Liping Xiong,
  • Yuyang Peng,
  • Ming Yue,
  • Haihong Wei and ,
  • Runlong Ye,
  • Fawaz AL-Hazemi and
  • Mohammad Meraj Mirza
  • + 2 authors+ 0 author

In this paper, we present a practical partitioned intelligent-reflecting-surface-aided transmit spatial modulation (PIRS-TSM) scheme, where spatial modulation is implemented at the transmitter and partitioning is conducted on the IRS to enhance the s...

(This article belongs to the Special Issue Complexity in 6G: Measures, Advanced Models and Mathematical Algorithms to Face New Challenges in the New Communication Paradigm Development)
  • Article
  • Open Access
4 Citations
2,013 Views
28 Pages

2 November 2024

Satellite remote sensing is the best way to derive sea surface skin temperature (SSTskin) in the Arctic. However, as surface temperature retrieval algorithms in the infrared (IR) part of the electromagnetic spectrum are designed to compensate for atm...

(This article belongs to the Section Ocean Remote Sensing)
  • Article
  • Open Access
3 Citations
2,816 Views
16 Pages

Methodological Approach in the Simulation of the Robustness Boundaries of Tribosystems under the Conditions of Boundary Lubrication

  • Tareq M. A. Al-Quraan,
  • Fadi Alfaqs,
  • Ibrahim F. S. Alrefo,
  • Viktor Vojtov and ,
  • Anton Voitov,
  • Andrey Kravtsov,
  • Oleksandr Miroshnyk,
  • Andrii Kondratiev,
  • Pavel Kučera and
  • Václav Píštěk
  • + 5 authors+ 0 author

In the presented work, a methodical approach was developed for determining rational operation modes of tribosystems, taking into account their design. This approach makes it possible in the designing stage, according to the predicted operating modes,...

(This article belongs to the Special Issue Advances in Boundary Lubrication)
  • Article
  • Open Access
1 Citations
3,697 Views
23 Pages

29 November 2025

The pursuit of scalable quantum computing is intrinsically limited by qubit decoherence, making robust quantum error correction (QEC) techniques crucial. As a leading solution, the topological surface code offers inherent protection against local noi...

(This article belongs to the Special Issue Recent Advances in Quantum Information)
  • Article
  • Open Access
853 Views
30 Pages

15 August 2026

Reanalysis surface air temperatures (SATs) offer significant advantages for monitoring climate change, but their performance has not been systematically evaluated across diverse perspectives, limiting studies on surface–atmosphere interactions....

(This article belongs to the Special Issue Land Surface Temperature Retrieval and Cross-Validation for Remote Sensing Applications)
  • Article
  • Open Access
12 Citations
4,960 Views
19 Pages

11 October 2020

Digital image correlation (DIC) systems have been used in many engineering fields to obtain surface full-field strain distribution. However, noise affects the accuracy and precision of the measurements due to many factors. The aim of this study was t...

  • Article
  • Open Access
23 Citations
4,195 Views
19 Pages

28 October 2020

Unmanned Surface Vehicles (USV) are increasingly used to perform numerous tasks connected with measurements in inland waters and seas. One of such target applications is hydrography, where traditional (manned) bathymetric measurements are increasingl...

(This article belongs to the Special Issue Positioning Algorithm, System and Application Using Radio Frequency (RF))
  • Article
  • Open Access
669 Views
34 Pages

16 July 2026

Sea surface temperature (SST) anomalies represent a critical threat to the operational safety and productivity of marine ranching systems. Taking a typical marine ranching area in the Northern Yellow Sea as the study area, this study developed a ligh...

(This article belongs to the Special Issue Advancing Ocean Observation, Analysis, and Forecasting Through AI-Powered Remote Sensing)
  • Letter
  • Open Access
5 Citations
3,184 Views
13 Pages

6 December 2020

Subfootprint variability (SFV), or representativeness error, is variability within the footprint of a satellite that can impact validation by comparison of in situ and remote sensing data. This study seeks to determine the size of the sea surface sal...

(This article belongs to the Special Issue Moving Forward on Remote Sensing of Sea Surface Salinity)
  • Communication
  • Open Access
6 Citations
2,258 Views
13 Pages

Spectral Efficiency Analysis for IRS-Assisted MISO Wireless Communication: A Metaverse Scenario Proposal

  • Md Habibur Rahman,
  • Mohammad Abrar Shakil Sejan,
  • Md Abdul Aziz,
  • Dong-Sun Kim and ,
  • Young-Hwan You and
  • Hyoung-Kyu Song
  • + 1 author+ 0 author

20 July 2023

The metaverse is emerging as a next-generation internet paradigm that will enhance human interaction and connectivity. Digital twinning, a fundamental strategy used in the metaverse, allows for the virtualization of real-world items, people, actions,...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
1 Citations
1,859 Views
17 Pages

6 June 2024

The research on high-precision and all-scenario localization using the millimeter-wave (mmWave) band is of great urgency. Due to the characteristics of mmWave, blockages make the localization task more complex. This paper proposes a cooperative local...

(This article belongs to the Special Issue Advanced Massive MIMO Antenna Arrays, Metasurfaces and Reconfigurable Intelligent Surfaces for Sensing, Localization, and Wireless Communications)
  • Article
  • Open Access
2 Citations
1,179 Views
20 Pages

22 December 2025

Accurate, real-time monitoring of meat freshness is essential for reducing food waste and safeguarding consumer health, yet conventional methods rely on costly, laboratory-grade spectroscopy or destructive analyses. This work presents a low-cost elec...

(This article belongs to the Special Issue Built Environment and Building Energy for Decarbonization)
  • Feature Paper
  • Article
  • Open Access
12 Citations
5,993 Views
11 Pages

Exploring Machine Learning to Correct Satellite-Derived Sea Surface Temperatures

  • Stéphane Saux Picart,
  • Pierre Tandeo,
  • Emmanuelle Autret and
  • Blandine Gausset

1 February 2018

Machine learning techniques are attractive tools to establish statistical models with a high degree of non linearity. They require a large amount of data to be trained and are therefore particularly suited to analysing remote sensing data. This work...

(This article belongs to the Special Issue Sea Surface Temperature Retrievals from Remote Sensing)
  • Article
  • Open Access
54 Citations
8,585 Views
15 Pages

12 September 2019

The performance of bathymetric measurements by traditional methods (using manned vessels) in ultra-shallow waters, i.e., lakes, rivers, and sea beaches with a depth of less than 1 m, is often difficult or, in many cases, impossible due to problems re...

(This article belongs to the Special Issue Remote Sensing in Vessel Detection and Navigation)
  • Article
  • Open Access
11 Citations
2,534 Views
17 Pages

Performance Analysis of Full Duplex Bidirectional Machine Type Communication System Using IRS with Discrete Phase Shifter

  • Periyakarupan Gurusamy Sivabalan Velmurugan,
  • Sundarrajan Jayaraman Thiruvengadam,
  • Vinoth Babu Kumaravelu,
  • Shrinithi Rajendran and ,
  • Roshini Parameswaran and
  • Agbotiname Lucky Imoize
  • + 1 author+ 0 author

14 June 2023

In this paper, passive Intelligent Reflecting Surface (IRS) is used to enhance the performance of a Full Duplex (FD) bidirectional Machine Type Communication (MTC) system with two source nodes. Each node is equipped with two antennas to operate in FD...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
4 Citations
2,233 Views
25 Pages

23 September 2024

For the future of sixth-generation (6G) wireless communication, simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) technology is emerging as a promising solution to achieve lower power transmission and flawless c...

(This article belongs to the Special Issue 5G/6G Networks for Wireless Communication and IoT)
  • Article
  • Open Access
815 Views
18 Pages

29 May 2026

Quantum error correction (QEC) is indispensable for suppressing noise in near-term and future quantum processors. Most neural decoders proposed for the surface code exploit predominantly local syndrome neighborhoods, which limits their ability to cap...

  • Article
  • Open Access
5 Citations
3,117 Views
20 Pages

Thermal Deformation Defect Prediction for Layered Printing Using Convolutional Generative Adversarial Network

  • Jinghua Xu,
  • Kang Wang,
  • Shuyou Zhang,
  • Guodong Yi and ,
  • Jianrong Tan,
  • Sheng Luo and
  • Jihong Pang
  • + 2 authors+ 0 author

29 September 2020

This paper presents a Thermal Deformation defect prediction method for layered printing using Convolutional Generative Adversarial Network (CGAN). Firstly, the original manifold mesh is converted into layered image in Printing Coordinate System (PCS)...

(This article belongs to the Section Mechanical Engineering)
  • Article
  • Open Access
19 Citations
6,455 Views
17 Pages

Assimilation of Sentinel-1 Derived Sea Surface Winds for Typhoon Forecasting

  • Yi Yu,
  • Xiaofeng Yang,
  • Weimin Zhang,
  • Boheng Duan and ,
  • Xiaoqun Cao and
  • Hongze Leng
  • + 1 author+ 0 author

14 August 2017

High-resolution synthetic aperture radar (SAR) wind observations provide fine structural information for tropical cycles and could be assimilated into numerical weather prediction (NWP) models. However, in the conventional method assimilating the u a...

(This article belongs to the Special Issue Ocean Remote Sensing with Synthetic Aperture Radar)
  • Article
  • Open Access
5 Citations
2,515 Views
17 Pages

24 September 2024

Intelligent Reflecting Surfaces (IRS) and Multiple-Input Single-Output (MISO) technologies are essential in the fifth generation (5G) networks and beyond. IRS optimizes the signal propagation and the coverage and is a viable approach to address the i...

(This article belongs to the Special Issue From 5G-Advanced to 6G Wireless Networks: Fundamental Theories and Key Technologies)
  • Article
  • Open Access
602 Views
21 Pages

5 March 2026

This paper proposed a reconfigurable intelligent surface (RIS)-empowered reference-modulated differential chaos shift keying (RM-DCSK) wireless powered communication (WPC) system. As a noncoherent chaotic communication scheme, the proposed system exp...

(This article belongs to the Section Complexity)
  • Article
  • Open Access
8 Citations
5,914 Views
17 Pages

15 May 2023

The goal of this study is to detect linear and nonlinear causal pathways toward climate change as measured by changes in global mean surface temperature and global mean sea level over time using a data-based approach in contrast to the traditional ph...

  • Article
  • Open Access
3 Citations
2,043 Views
21 Pages

Design and Analysis of Optical–Mechanical–Thermal Systems for a High-Resolution Space Camera

  • Xiaohan Liu,
  • Jian Jiao,
  • Kaihui Gu,
  • Hong Li and ,
  • Wenying Zhang,
  • Siqi Zhang,
  • Wei Zhao,
  • Zhaohui Pei,
  • Bo Zhang and
  • Feng Yang
  • + 6 authors+ 1 author

16 December 2025

To meet the requirements of high resolution, compact size, and ultra-lightweight for micro–nano satellite optoelectronic payloads while ensuring high structural stability during launch and in-orbit operation, mirrors were designed with high sur...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
19 Citations
10,396 Views
12 Pages

The efficient use of electrical energy is a topic that has attracted attention for its environmental consequences. On the other hand, induction motors represent the main component in most industries. They consume the highest energy percentages in ind...

  • Article
  • Open Access
2 Citations
1,172 Views
23 Pages

Cooperative NOMA with RIS Assistance for Short-Packet Communications Under Hardware Impairments

  • Wenbin Song,
  • Dechuan Chen,
  • Jin Li,
  • Xingang Zhang and
  • Zhipeng Wang

6 November 2025

Ultra-reliable low-latency communication (URLLC) presents significant challenges in simultaneously guaranteeing stringent latency bounds, ultra-high reliability, and efficient resource utilization under dynamic channel conditions. To address these jo...

(This article belongs to the Special Issue Next-Generation Intelligent Wireless Communication Systems: Theory, Algorithms, and Deployable Applications)
  • Article
  • Open Access
246 Views
19 Pages

13 October 2026

Integrating spatial temperature and modeled health data requires compatible geographic units and valid treatment of prevalence estimates. This Houston-area study audits an intersected dataset and examines the sensitivity of its tract-level associatio...

(This article belongs to the Special Issue Climate, Ecosystem and Human Health: Impacts and Adaptation)
  • Article
  • Open Access
33 Citations
4,503 Views
17 Pages

8 January 2020

Surface electromyogram (sEMG) signals are easy to record and offer valuable motion information, such as symmetric and periodic motion in human gait. Due to these characteristics, sEMG is widely used in human-computer interaction, clinical diagnosis a...

  • Article
  • Open Access
11 Citations
2,429 Views
18 Pages

10 August 2022

This article discusses experimental results concerning the quality of through holes drilled in Inconel 718. The tests involved hole cutting under 27 different conditions using different values of the feed per revolution and spindle speed, and differe...

(This article belongs to the Special Issue Monitoring of Cutting Process and Tool Condition of Metal and Metal Composite)
  • Article
  • Open Access
110 Citations
5,986 Views
13 Pages

9 April 2021

Extrusion printing processes allow for manufacturing complex shapes in a relatively cheap way with low-cost machines. The present study analyzes the effect of printing parameters on dimensional error, roughness, and porosity of printed PLA parts obta...

(This article belongs to the Section Polymer Applications)
  • Article
  • Open Access
8 Citations
3,085 Views
21 Pages

29 July 2024

The Fengyun-4B (FY-4B) satellite is currently the primary operational geostationary meteorological satellite in China, replacing the previous FY-4A satellite. The advanced geostationary radiation imager (AGRI) aboard the FY-4B satellite provides an o...

(This article belongs to the Special Issue Advances in Retrieval, Operationalization, Monitoring and Application of Sea Surface Temperature III)
  • Article
  • Open Access
3 Citations
1,929 Views
46 Pages

8 November 2023

The objective of this study was to develop spatiotemporal whole-stem wood quality prediction models for a suite of end-product-based fibre attribute determinates for jack pine (Pinus banksiana Lamb.) and red pine (Pinus resinosa Aiton): specifically,...

(This article belongs to the Special Issue The Influence of Forest Management on Wood Quality and End-Product Potential)
  • Article
  • Open Access
1 Citations
3,841 Views
27 Pages

Himawari-8 Sea Surface Temperature Products from the Australian Bureau of Meteorology

  • Pallavi Govekar,
  • Christopher Griffin,
  • Owen Embury,
  • Jonathan Mittaz and ,
  • Helen Mary Beggs and
  • Christopher J. Merchant
  • + 1 author+ 0 author

11 September 2024

As a contribution to the Integrated Marine Observing System (IMOS), the Bureau of Meteorology introduces new reprocessed Himawari-8 satellite-derived Sea Surface Temperature (SST) products. The Radiative Transfer Model and a Bayesian cloud clearing m...

(This article belongs to the Special Issue Advances in Retrieval, Operationalization, Monitoring and Application of Sea Surface Temperature III)
  • Article
  • Open Access
9 Citations
4,943 Views
24 Pages

Performance Analysis of Reconfigurable Intelligent Surface-Assisted Millimeter Wave Massive MIMO System Under 3GPP 5G Channels

  • Vishnu Vardhan Gudla,
  • Vinoth Babu Kumaravelu,
  • Agbotiname Lucky Imoize,
  • Francisco R. Castillo Soria and ,
  • Anjana Babu Sujatha,
  • Helen Sheeba John Kennedy,
  • Hindavi Kishor Jadhav,
  • Arthi Murugadass and
  • Samarendra Nath Sur
  • + 4 authors+ 0 author

Reconfigurable intelligent surfaces (RIS) and massive multiple input and multiple output (M-MIMO) are the two major enabling technologies for next-generation networks, capable of providing spectral efficiency (SE), energy efficiency (EE), array gain,...

(This article belongs to the Special Issue Advances in Telecommunication Networks and Wireless Technology)
  • Article
  • Open Access
23 Citations
3,428 Views
18 Pages

Thermal Sources of Errors in Surface Texture Imaging

  • Karol Grochalski,
  • Michał Wieczorowski,
  • Paweł Pawlus and
  • Jihad H’Roura

19 May 2020

This paper presents the influence of thermal phenomena on areal measurements of surface topography using contact profilometers. The research concerned measurements under controlled and variable environmental conditions. The influence of internal heat...

(This article belongs to the Special Issue “3D” Parametric and Nonparametric Description of Surface Topography in Manufacturing Processes)
  • Article
  • Open Access
9 Citations
2,458 Views
14 Pages

The Effect of Spatially Correlated Errors on Sea Surface Height Retrieval from SWOT Altimetry

  • Max Yaremchuk,
  • Christopher Beattie,
  • Gleb Panteleev,
  • Joseph M. D’Addezio and
  • Scott Smith

31 August 2023

The upcoming technology of wide-swath altimetry from space will enable monitoring the ocean surface at 4–5 times better spatial resolution and 2–3 times better accuracy than traditional nadir altimeters. This development will provide a ch...

(This article belongs to the Special Issue Applications of Satellite Altimetry in Ocean Observation)

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