Results 41 to 50 of about 24,891 (361)

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim   +7 more
wiley   +1 more source

Investigation of the Energy Absorption Characteristics of Metallic Tubes with Curvy Stiffeners under Dynamic Axial Crushing

open access: yesLatin American Journal of Solids and Structures
Thin walled multi-cell columns are highly efficient energy absorbers under axial compressions. Multi-cell features are usually obtained by placing stiffeners or ribs to get the required geometry features in the columns.
Naveed Ahmed   +5 more
doaj   +1 more source

Method Considered Distortional-local Interaction Buckling for Bearing Capacity of Channels with Complex Edge Stiffeners and Web Stiffeners under Axial Compression

open access: yesMATEC Web of Conferences, 2016
Using the current direct strengths method to predict the bearing capacity of channels with complex edge stiffeners and stiffeners in the web, it will make the excessively conservative results to the test data for it couldn’t account for the interaction ...
Wang Chungang, Bai Yu
doaj   +1 more source

Computational Modeling and Constructal Design Theory Applied to the Geometric Optimization of Thin Steel Plates with Stiffeners Subjected to Uniform Transverse Load

open access: yesMetals, 2020
Stiffened thin steel plates are structures widely employed in aeronautical, civil, naval, and offshore engineering. Considering a practical application where a transverse uniform load acts on a simply supported stiffened steel plate, an approach ...
Grégori Troina   +6 more
doaj   +1 more source

Self‐Assembled Nanoclay Gel With Spheroid MSC‐Derived Exosome Mimetics to Integrate Demineralized Bone Matrix and Noggin‐Targeting miRNA for Synergistic Osteogenesis

open access: yesAdvanced Functional Materials, EarlyView.
We report a versatile nanoclay gel carrier platform that enhances the osteogenic efficacy of demineralized bone matrix (DBM) by integrating nanoclay‐based self‐assembly with cell‐derived exosome mimetics loaded with noggin‐targeting miR‐200c. This design amplifies BMP signaling, thereby promoting DBM‐mediated osteogenesis and offering a promising ...
Changlu Xu   +7 more
wiley   +1 more source

Buckling of Steel Conical Panels Reinforced with Stiffeners

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
Conical shells and their panels are important elements of building structures, but have not been studied sufficiently. This paper explores buckling of truncated steel conical panels reinforced with an orthogonal grid of stiffener plates.
Alexey A. Semenov   +2 more
doaj   +1 more source

Preformed stiffeners used to fabricate structural components for pressurized tanks [PDF]

open access: yes, 1966
Process of fabricating stiffened section components of pressurized tanks for aerospace use was developed. A potential use of the fabrication process is the production of gore and quarter-panel sections of hydrogen and oxygen tanks for space vehicle ...
Lewis, J. C., Sherba, E. S.
core   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

open access: yesAdvanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo   +2 more
wiley   +1 more source

A Level-Set-Based Density Method for Buckling Optimization of Structure with Curved Grid Stiffeners

open access: yesApplied Sciences
Curved grid stiffeners, compared to straight stiffeners, offer greater flexibility in adjusting the force transmission paths and give better structural performance. In this paper, a level-set-based density method is employed to generate layouts of curved
Yifan Zhang, Ye Tian, Qi Xia
doaj   +1 more source

Dynamic characterisation of a damaged composite structure with stiffeners employing fibre bragg gratings [PDF]

open access: yes, 2011
One of the key issues in composite structures for aircraft applications is the early detection and localisation of damage. Often service induced damage does not involve visible plastic deformation, but internal matrix related damage, like transverse ...
Akkerman, R.   +5 more
core   +1 more source

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