Results 91 to 100 of about 2,361 (247)

Enhanced Control Strategies for Residual‐Vibration Suppression and Adaptive Tracking in Flexible Manipulator Under Unknown Bounded Disturbances

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This paper proposes a hybrid control strategy for flexible‐link manipulators that combines offline trajectory planning with adaptive tracking to suppress residual elastic vibration (REV) under unknown bounded disturbances. A rigid–flexible coupling dynamics model is first established using the floating‐frame method and Lagrange's equations ...
Mingming Shi, Bao Rong, Xiaoting Rui, Guoping Wang, Xiaoli Dong, Xin Zhao   +5 more
wiley   +1 more source

Stochastic Dynamic Response Analysis of Spherical Roller Thrust Bearings Based on Improved Deep Neural Network

Modelling
The roller–raceway contact response is a key factor affecting stress concentration, fatigue initiation, and raceway spalling in spherical roller thrust bearings.
Chenyao Wan, Zheng Li, Xiaoqian Ma, Yongshou Liu, Wei Sun   +4 more
doaj   +1 more source

Design and Multibody Dynamics Modeling of a Novel High‐Static‐Low‐Dynamic‐Stiffness Vibration Isolation Mechanism Based on Euler Buckling Characteristics

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Vibration isolation has long been a critical area of research, with the design of isolators based on the mechanical properties of Euler buckling beams representing one of the primary approaches. Traditionally, the focus has been on utilizing the negative stiffness characteristics of a post‐buckled Euler beam in parallel with positive stiffness
Yichang Feng, Yongpeng Gu, Gexue Ren, Suyuan Yu   +3 more
wiley   +1 more source

Pteris madhusoodananii (Pteridaceae), a new fern species from India

Nordic Journal of Botany, EarlyView.
Pteris madhusoodananii sp. nov. (Pteridaceae), from the Kolli hills of Eastern Ghats, India, is described. The new taxon is morphologically distinct, characterized by a unique lamina texture and coloration, specific pinna‐pinnule architecture and distinct spore micromorphology.
Kalathil Sethumadhavan Abhilash, Alex Philip Alen, Thekkekara Suresh Gayathri, Veerankutty Suresh, Jose Sojan, V. K. Sreenivas, Lakshmanan Leeja   +6 more
wiley   +1 more source

The Efficacy and Safety of Endoscopic Ultrasound-Guided Retroperitoneal Fluid Collection Drainage with Novel Electrocautery-Enhanced Lumen-Apposing Metal Stents (with Video)

Gut and Liver
Background/Aims: Various lumen-apposing metal stents (LAMS) have been used for the endoscopic ultrasound-guided transmural drainage (EUS-TD) of postoperative pancreatic fluid collections (POPFC) and peripancreatic fluid collections (PFC).
Sung Hyun Cho, Yoonchan Lee, Tae Jun Song, Dongwook Oh, Dong-Wan Seo   +4 more
doaj   +1 more source

Multifunctional Epoxy Composites Reinforced With Hybrid MWCNT/Graphene‐Related Materials Buckypaper

Polymer Composites, EarlyView.
Graphical overview of the processing route for hybrid buckypaper‐reinforced epoxy composites and the resulting multifunctional properties. ABSTRACT This study investigates the development of multifunctional epoxy composites reinforced with hybrid buckypapers composed of multi‐walled carbon nanotubes (MWCNTs) and graphene‐related materials (GRMs ...
Thais Ferreira da Silva, Thiély Ferreira da Silva, Rieyssa Maria de Almeida Corrêa, Rui Alexandre Araújo Ribeiro, Braian Esneider Buitrago Uribe, Michelle Leali Costa, Delfim Fernandes Soares, Fabio Roberto Passador, Beate Krause, Maria Conceição Paiva, Edson Cocchieri Botelho   +10 more
wiley   +1 more source

Direct Measurement of Explosive Impulse From Contact to the Ultra‐Near Field

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Measurement of impulse from explosive charges in contact and ultra‐near‐field regimes remains poorly characterised due to the short duration of loading, high strain rates, and the difficulty of obtaining direct momentum‐based measurements.
R. Alford, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source

Concrete in architecture: Redefining form, space, function, and insights from bibliometric analysis

Structural Concrete, EarlyView.
Abstract Concrete has become a cornerstone in architectural and engineering innovation, as it seamlessly integrates structural performance with artistic expression. Its evolution from ancient opus caementicium to contemporary ultra‐high‐performance concrete illustrates its adaptability to the change in technological, environmental, and design paradigms.
Mouhcine Benaicha, Khalid El Harrouni, Samir Kabouss   +2 more
wiley   +1 more source

Influence of Steel Section Configuration on the Seismic Performance of Concrete-Encased Steel Rectangular Bridge Piers

Applied Sciences
Concrete-encased steel (CES) bridge piers can be considered as a robust alternative to traditional reinforced concrete sections, especially in regions prone to seismic activity.
Mohammadreza Moradian, Munzer Hassan
doaj   +1 more source

Mandibular guiding flange prosthesis to guide mandibular deviation following partial mandibulectomy and partial maxillectomy for squamous cell carcinoma: A case report

Journal of Cancer Research and Therapeutics
ABSTRACT Squamous cell carcinoma is one of the most prevalent cancers affecting the oral cavity. Rehabilitation following surgical treatment requires a multidisciplinary approach and care. Multiple disabilities such as dysarthria, dysphagia, unesthetic appearance, and psychosocial disorders following the surgery for carcinoma can greatly ...
Sujata, Chahal, Divya, Dahiya, Priya, Nagar, Aman, Duhan, Surbhi, Mittal   +4 more
openaire   +2 more sources