Results 131 to 140 of about 7,730 (247)

An Approach for Computationally Efficient Yet Accurate Modeling of Vibrating Machines With Neidhart Springs

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Accurate modeling of vibrating machines equipped with Neidhart springs is challenging due to the strong nonlinearities introduced by the elastomer–metal torsional elements and the constraints imposed by their kinematic arrangement. Multibody modeling methodologies for such vibrating machines are often computationally demanding, thus limiting ...
Davide Galli, Veit Gufler, Andrea Giusti, Renato Vidoni   +3 more
wiley   +1 more source

Finite‐Difference Reduced Transfer Matrix Method for Multibody Systems With Rotating Beams

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Multibody systems with rotating beams serve as critical simplified models of core components in engineering systems; however, existing analytical and numerical methods have limitations in analyzing their complex dynamic behavior. This paper proposes the Finite‐Difference Reduced Multibody System Transfer Matrix Method (FD‐RMSTMM), which ...
Ziyao Ma, Hanjing Lu, Caishan Liu, Xiaoting Rui   +3 more
wiley   +1 more source

A Pontryagin class obstruction for purely electric and purely magnetic Weyl curvature tensors. [PDF]

Lett Math Phys
de Kok T.
europepmc   +1 more source

Burden of ischemic stroke in China from 1990 to 2050: A systematic review and analysis of Global Burden of Disease Study 2021

Neuroprotection, EarlyView.
Based on GBD 2021, the study analyzed the temporal trends of ischemic stroke (IS) burden in China from 1990 to 2021 and forecasted incidence and mortality through 2050. The absolute burden of IS in China will continue to rise by 2050, driven mainly by population aging, with faster age‐standardized incidence rate growth in females than males.
Yijun Zhang, Jinqiao Zhu, Xue Xia, Meng Gao, Yunyi Hao, Anxin Wang   +5 more
wiley   +1 more source

Joyce Structures from Quadratic Differentials on the Sphere. [PDF]

Commun Math Phys
Moy T.
europepmc   +1 more source

Experimental and Numerical Assessment of Progressive Damage in CF/PEEK Laminates Under Monotonic and Progressive Cyclic Four‐Point Bending

Polymer Composites, EarlyView.
Experimental four‐point bending of CF/PEEK laminates under monotonic and progressive cyclic loading is assessed using classical lamination theory and a calibrated Hashin progressive damage model. ABSTRACT Carbon‐fiber‐reinforced PEEK composites combine high specific strength, corrosion resistance, and damage tolerance, supporting their use in aerospace,
Pedro Antônio Castro Regio dos Santos, Thais da Costa Dias, Geovanio Lima de Oliveira, Hugo Francisco Lisboa Santos, Winston C. Gama, Maikson L. P. Tonatto   +5 more
wiley   +1 more source

A Metrology-Driven Self-Calibration Framework for Terrestrial Laser Scanner Sensor Systems. [PDF]

Sensors (Basel)
Yuan H, Li G, Wang L, Li X.
europepmc   +1 more source

Experimental Validation of Prediction Models of Pressure‐Throughput Behavior for Melt‐Conveying Elements in Fully Intermeshing Co‐Rotating Twin‐Screw Extruders

Polymer Engineering &Science, EarlyView.
Comparison between hybrid model prediction and experimental measurements of pressure‐throughput behavior of co‐rotating twin‐screw conveying elements shows the hybrid model performing well. ABSTRACT Modeling and simulation of the melt conveying of co‐rotating twin screw extruders, one of the important manufacturing machines in polymer processing, is ...
Jakub Kuncak, Ursula Steiner, Alexander Hammer, Gerald Berger‐Weber   +3 more
wiley   +1 more source

Supervised Protein Structure Classification Using Topological Persistence With DeltaFold

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Recent advances in protein structure prediction have considerably increased the number of available structures, underscoring the need for scalable and accurate methods to compare and classify this huge amount of data. Current approaches based on sequence alignment or structural superposition often lack sensitivity and/or are computationally ...
Joseph Nardin‐Gennequin, Gabriela Ciuperca, Céline Brochier‐Armanet, Philippe Malbos   +3 more
wiley   +1 more source

Stage-Complete Mapping of Pairwise Monocular Structure-from-Motion to Field-Programmable Gate Arrays. [PDF]

J Imaging
Stamatakis P, Vourvoulakis J.
europepmc   +1 more source