Results 81 to 90 of about 1,616 (267)

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

Stability analysis of an open shallow cylindrical shell with imperfection under external pressure

MATEC Web of Conferences, 2017
Elastic shallow generalized cylindrical shells of an open cross-section subjected to the various forms of external pressure are analysed in the paper numerically using the finite element method.
Psotny Martin, Havran Jozef
doaj   +1 more source

Programming Light‐Driven Surface Topographies in Liquid Crystal Elastomers for Potential Biomedical Applications Through Combined Experiments and Simulations

Advanced Materials Technologies, EarlyView.
A combined experimental and simulation study of light‐responsive liquid crystal elastomer surfaces operating under physiological conditions is reported, demonstrating programmable and highly spatially controlled topography formation through bottom‐side photomask exposure. Our study establishes a foundation for dynamic, light‐responsive biosurfaces with
Ruth M. C. Verbroekken, Akhila Gottipati, Burcu Gumuscu, Ratna Kumar Annabattula, Albert P. H. J. Schenning   +4 more
wiley   +1 more source

Biodegradable and Edible Milli‐Fluidic Logic Circuits

Advanced Materials Technologies, EarlyView.
Fully biodegradable and edible fluidic circuits are developed using gelatin‐based valves that operate at low pressure. Logic gates, a one‐bit memory, and a ring oscillator are demonstrated, showing that biodegradable materials can perform computation and control.
Shuhang Zhang, Bokeon Kwak, Özgün Ekrem, Dario Floreano   +3 more
wiley   +1 more source

Uncertainty quantification of buckling properties for imperfect spherical shell subjected to external pressure

Journal of Advanced Engineering and Computation
This study focuses on analyzing the buckling properties of imperfect spherical shells, accounting for the uncertainty parameters of a spherical shell under external pressure.
Muhamad Zulkifli, Mohd Ismail, Jamaluddin Mahmud, Ilyani Akmar   +3 more
doaj   +1 more source

An Analysis of elastic and inelastic lateral torsional buckling of web-tapered I beams using the finite element method

MATEC Web of Conferences, 2019
Elastic and inelastic lateral torsional buckling of simply web tapered I beam is studied using the finite element method. The length of the beams is 8000 mm for elastic lateral torsional buckling and 4000 mm for inelastic lateral torsional buckling.
Karta Wijaya Paulus, Lauw Giok Swan Cecilia, Sadrina Noor Ghassani   +2 more
doaj   +1 more source

Liquid Metal Resistive Sensing Architectures for Measuring Diaphragm Strain Responses on Obstructed Surfaces

Advanced Materials Technologies, EarlyView.
A liquid metal‐based strain‐sensing architecture to measure the deformation of a circular diaphragm against obstructed surfaces is formulated using finite element modeling and confocal imaging to establish the mechanical framework and is utilized to control diaphragm‐induced confinement on a bead array, as validated by biomolecular loading level ...
Abdullah‐Bin Siddique, Jui‐Hong Weng, Deng‐Kai Yang, Chia‐Fu Chou, Nathan S. Swami   +4 more
wiley   +1 more source

Stochastic Dynamic Buckling Analysis of Cylindrical Shell Structures Based on Isogeometric Analysis

Mathematics
In this paper, we extend our previous work on the dynamic buckling analysis of isogeometric shell structures to the stochastic situation where an isogeometric deterministic dynamic buckling analysis method is combined with spectral-based stochastic ...
Qingqing Yu, Xiaojun Liu, Fei Xue, Zhenyu Guan, Yujie Guo, Jianjiang Zeng   +5 more
doaj   +1 more source

High‐Density Magnetomyography With Optical Magnetometers Reveals Spatiotemporal Patterns of Evoked Muscle Activity

Advanced Materials Technologies, EarlyView.
Optically pumped magnetometers are employed to contactlessly map the spatiotemporal dynamics of the magnetic field linked to electrical activity of a skeletal muscle in vivo. It is demonstrated that localization of the clinically relevant innervation zone is feasible using this non‐invasive magnetic measurement modality. ABSTRACT Magnetomyography (MMG)
Simon Nordenström, Victor Lebedev, Stefan Hartwig, Marlen Kruse, Santiago Rodriguez, Lukas Baier, Nima Noury, Thomas Klotz, Ahmet Doğukan Keleş, Justus Marquetand, Markus Siegel, Oliver Röhrle, Thomas Middelmann   +12 more
wiley   +1 more source

NONLINEAR STABILITY AND IMPERFECTION SENSITIVITY ANALYSIS OF HYBRID TIMBER BEAMS FORMULATED VIA A MECHANISM-BASED ENERGY APPROACH

International Journal for Computational Civil and Structural Engineering
This paper develops an advanced computational framework to investigate the nonlinear stability and imperfection sensitivity of hybrid three-layer timber beams, specifically composed of high-stiffness Birch faces and a relatively soft Pine core.
Le Thuy Nguyen, Hong Son Nguyen, Thuy Van Tran Thi   +2 more
doaj   +1 more source