Results 51 to 60 of about 11,014,330 (212)
Vojnotehnički GlasnikIntroduction/purpose: The present work aims to carry out a static and dynamic investigation of composite beams composed of two elements connected together, with a partial interaction between the beam layers, while taking into account the interlaminar ...
Rachida Mohamed Krachaï +4 more
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Journal of Engineering, 2019 Buckling analysis of a laminated composite thin plate with different boundary conditions subjected to in-plane uniform load are studied depending on classical laminated plate theory; analytically using (Rayleigh-Ritz method).
Widad I. Majeed +1 more
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Gradient‐ and Newton‐Based Unit Vector Extremum Seeking Control
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT This paper proposes new methods for stable and efficient convergence in multivariable extremum seeking control (ESC) using sliding mode techniques. Inspired by classical sliding modes and finite‐time control, the approach integrates these ideas into gradient‐ and Newton‐based ESC schemes with sinusoidal perturbations.
Roberto Luo +3 more
wiley +1 more source
A Generic Approach to Creating a National Soil Security Strategy
Sustainable Development, EarlyView.ABSTRACT Soil is a living and non‐renewable resource that underpins our very existence. It produces our food, filters our water, stores vast amounts of carbon, cycles essential nutrients, and sustains the rich tapestry of biodiversity on which our planet depends.
Alex McBratney +21 more
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Curved and Layered Structures, 2018 In this paper, an efficient and unified approach for free vibration analysis of the moderately thick functionally graded carbon nanotube reinforced composite annular sector plate with general boundary supports is presented by using the Ritz method and ...
Pang Fuzhen +4 more
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Buckling and Vibration Analysis of Tapered Circular Nano Plate [PDF]
Journal of Applied and Computational Mechanics, 2018 In this paper, buckling and free vibration analysis of a circular tapered nanoplate subjected to in-plane forces were studied. The linear variation of the plate thickness was considered in radial direction.
Mehdi Zarei +3 more
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Ingenieure im Gebirg : Nach dem Original-Gemälde des Hern R. Ritz in Sitten
, 1881 X. J v A Closs & sc. ; CRDruckgraphik nach dem Gemälde von Raphael Ritz "Ingenieure im Gebirge", 1870, Öl auf Leinwand, Kunstmuseum Bern. 1880 bemühte sich ein Berner Drucker um die Reproduktionsrechte und erhielt von Ritz die Zusage.
Ritz, Raphael
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Gut microbiota dysbiosis and Long COVID susceptibility in chronic kidney disease
VIEW, EarlyView.This study investigated gut microbiota dysbiosis and its association with Long COVID susceptibility in 224 hemodialysis patients. We found that 35.3% of patients developed Long COVID, characterized by neurological symptoms and elevated inflammatory markers, accompanied by significant gut microbiota alterations including enriched proinflammatory taxa ...
Meiling Jin +5 more
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VibrationThis study introduces the dynamic characteristics of stepped functionally graded (FG) cylindrical shells under general boundary conditions using the Legendre–Ritz method.
Yanbin Shen +3 more
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Shock and Vibration, 2021 Applying the ultrasonic machining in gear honing can improve honing speed, reduce cutting force, and avoid blocking. There are two problems leading to the decrease of calculation accuracy in the traditional nonresonant theory of the ultrasonic gear ...
Yi Li, Ming Lv, Shiying Wang, Huibin Qin
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