Results 81 to 90 of about 13,098 (275)

The Development and Challenges of PET/MRI Dual‐Modality Imaging Probes—An Update

open access: yesJournal of Magnetic Resonance Imaging, Volume 62, Issue 5, Page 1245-1259, November 2025.
ABSTRACT The integration of Positron emission tomography (PET) with Magnetic resonance imaging (MRI) combines the functional imaging capabilities of PET with the high‐resolution anatomical detail of MRI, creating a synergistic platform for advanced diagnostic imaging and image‐guided therapies. Central to the success of this dual‐modality system is the
Maryam Sabbaghan   +5 more
wiley   +1 more source

Optimized UAV‐Based Relay Algorithm for Enhanced Emergency Wireless Coverage in Disaster Areas

open access: yesEngineering Reports, Volume 7, Issue 8, August 2025.
An optimized UAV‐based relay algorithm is proposed to enhance emergency wireless coverage in disaster areas. By dynamically adjusting UAV positions and employing energy‐efficient routing, the approach minimizes path loss, improves Device‐to‐Device (D2D) communication, and ensures reliable connectivity for disaster response, enabling seamless ...
Deepika Rani Sona   +7 more
wiley   +1 more source

A Model Reference Adaptive Control Approach to Terrain Following Flight Control System

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi
Automatic Flight Control System (AFCS) Terrain Following (TF) mode allows military aircraft to fly at a certain altitude above ground level at a low altitude. TF mode reduces the probability of aircraft detection by enemy airborne radars.
Berk İnan, İbrahim Aliskan
doaj   +1 more source

A Review of Modeling and Control Techniques for Unmanned Aerial Vehicles

open access: yesEngineering Reports, Volume 7, Issue 6, June 2025.
By systematically classifying UAV modeling techniques and comparing control methods, this paper addresses a notable gap in the current literature. Furthermore, it highlights emerging trends and challenges in UAV control systems, providing valuable insights to guide future research toward enhancing the stability, efficiency, and adaptability of ...
Elisabeth Andarge Gedefaw   +2 more
wiley   +1 more source

Model relative adaptive control (MRAC) for temperature regulation of herb drying system [PDF]

open access: yes, 2021
This project describe the development of temperature regulation for herb drying system. The most important factor for herb drying is temperature. The purposes of temperature are to maintain the quality of herb, prevent degradation of product and ...
Mohamad Jumain, Nur Hidayah
core  

Generation of synthetic CT from MRI for MRI‐based attenuation correction of brain PET images using radiomics and machine learning

open access: yesMedical Physics, Volume 52, Issue 6, Page 3772-3784, June 2025.
Abstract Background Accurate quantitative PET imaging in neurological studies requires proper attenuation correction. MRI‐guided attenuation correction in PET/MRI remains challenging owing to the lack of direct relationship between MRI intensities and linear attenuation coefficients.
Amin Hoseinipourasl   +6 more
wiley   +1 more source

Partial Hasse invariants on splitting models of Hilbert modular varieties [PDF]

open access: yes, 2016
Let $F$ be a totally real field of degree $g$, and let $p$ be a prime number. We construct $g$ partial Hasse invariants on the characteristic $p$ fiber of the Pappas-Rapoport splitting model of the Hilbert modular variety for $F$ with level prime to $p$,
Reduzzi, Davide A., Xiao, Liang
core  

Active Sampling-based Binary Verification of Dynamical Systems

open access: yes, 2018
Nonlinear, adaptive, or otherwise complex control techniques are increasingly relied upon to ensure the safety of systems operating in uncertain environments. However, the nonlinearity of the resulting closed-loop system complicates verification that the
Ali A.   +11 more
core   +1 more source

Model Reference‐Based Neural Controller for Transmission Line Inspection Robot

open access: yesJournal of Field Robotics, Volume 42, Issue 4, Page 1314-1332, June 2025.
ABSTRACT The regular inspection of the power transmission lines is essential for the uninterrupted transmission of electrical energy to demand points. This quickly requires actions with economically, efficiently, and safely. Therefore, the transmission line inspection robots are inevitable solution as an alternative to existing line inspection methods.
Zehra Karagöz   +4 more
wiley   +1 more source

Characterizing atrial fibrillation in patients with and without heart failure across the ejection fraction spectrum: Incidence, prevalence, and treatment strategies

open access: yesEuropean Journal of Heart Failure, Volume 27, Issue 2, Page 236-248, February 2025.
Atrial fibrillation (AF) in patients with versus without heart failure (HF) across the ejection fraction spectrum. HFmrEF, heart failure with mildly reduced ejection fraction; HFpEF, heart failure with preserved ejection fraction; HFrEF, heart failure with reduced ejection fraction; SwedeHF, Swedish Heart Failure Registry.
Valeria Valente   +11 more
wiley   +1 more source

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