Results 61 to 70 of about 8,467 (198)

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

Düzce 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

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

, 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  

A Review of Modeling and Control Techniques for Unmanned Aerial Vehicles

Engineering 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, Nardos Belay Abera, Chala Merga Abdissa   +2 more
wiley   +1 more source

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

Medical 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, Gholam‐Ali Hossein‐Zadeh, Peyman Sheikhzadeh, Hossein Arabalibeik, Shaghayegh Karimi Alavijeh, Habib Zaidi, Mohammad Reza Ay   +6 more
wiley   +1 more source

Consistently Simulating a Wide Range of Atmospheric Scenarios for K2-18b with a Flexible Radiative Transfer Module

, 2020
The atmospheres of small, potentially rocky exoplanets are expected to cover a diverse range in composition and mass. Studying such objects therefore requires flexible and wide-ranging modeling capabilities.
Godolt, M., Grenfell, J. L., Haus, R., Herbst, K., Kappel, D., Rauer, H., Scheucher, M., Schreier, F., Wunderlich, F.   +8 more
core   +1 more source

Model Reference‐Based Neural Controller for Transmission Line Inspection Robot

Journal 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, Nazmi Ekren, Uğur Demir, Ahmet Fevzi Baba, Mustafa Şahin   +4 more
wiley   +1 more source

Estratégia adaptativa para máquinas assíncronas com orientação indireta pelo campo

Eletrônica de Potência, 1997
Este trabalho estuda a estratégia adaptativa do tipo MRAC (Model Referente Adaptive Control) aplicada no controle da máquina assíncrona com orientação indireta pelo campo rotórico (IFO).
Luis A. de S. Ribeiro, Cursino B. Jacobina, Antonio M. N. Lima, Alexandre C. Oliveira   +3 more
doaj   +1 more source

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

European 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, Giulia Ferrannini, Lina Benson, Paolo Gatti, Federica Guidetti, Michael Melin, Frieder Braunschweig, Cecilia Linde, Ulf Dahlström, Lars H. Lund, Marat Fudim, Gianluigi Savarese   +11 more
wiley   +1 more source

On the Afrotropical genus Holmelgonia (Araneae, Linyphiidae), with the description of three new species from the Albertine Rift

European Journal of Taxonomy, 2014
Three new species of Holmelgonia were found in the mountain forest of Kibira National Park in Burundi: H. afromontana sp. nov. (♂♀), H. bosnasutus sp. nov. (♂♀) and H. disconveniens sp. nov. (♂). A key to the males in the genus, now containing 17 species,
Benoît Nzigidahera, Rudy Jocqué
doaj   +1 more source

Model reference adaptive hierarchical control framework for shake table tests

Earthquake Engineering &Structural Dynamics, Volume 54, Issue 1, Page 346-362, January 2025.
Abstract The structural response under earthquake excitation can be simulated by shake table tests. However, the performance of the shake table is affected by the Control‐Structure Interaction (CSI) effect. In recent years, nonlinear control algorithms were developed to compensate for the CSI effect.
Zhongwei Chen, T. Y. Yang, Yifei Xiao, Xiao Pan, Wanyan Yang   +4 more
wiley   +1 more source