Results 91 to 100 of about 16,434 (253)

Ultrasonic Rainbow: A Meta‐Transducer for Frequency‐Selective Elastic Wave Control via Dithering‐Based Wavenumber Tuning

Advanced Intelligent Systems, EarlyView.
A piezoelectric meta‐transducer generates an ultrasonic rainbow, steering guided elastic waves to different angles according to frequency. A dithering‐based binary electrode design enables a closer realization of the target wavenumber filter, improving directional purity and suppressing unwanted lobes. Numerical and experimental validation demonstrates
Masoud Mohammadgholiha, Jochen Moll, Kilian Tschöke, Carsten Kruska, Sylvia E. Gebhardt, Luca De Marchi   +5 more
wiley   +1 more source

A Soft Robotic Jellyfish with Decoupled Actuators for Agile 3D Locomotion

Advanced Intelligent Systems, EarlyView.
This study presents a soft robotic jellyfish featuring a functionally decoupled actuation architecture. By separating propulsion, steering, and vertical regulation into independent modules, the robot overcomes conventional coupled‐motion limitations. Utilizing a passive‐valve‐based differential drag strategy and lateral water jets, it achieves agile 3D
Zhuoheng Li, Ze Huang, Salvador Pané, Josep Puigmartí‐Luis, Jiwan Kim, Ji‐Hun Bae, Bumjin Jang   +6 more
wiley   +1 more source

FLEXURAL BEHAVIOUR OF ANISOTROPIC COMPOSITE DISCS SUBJECTED TO THREE-POINT SUPPORT BENDING TESTS

, 1999
In this work, discs supported on three points were loaded at the centre to determine the flexural stiffness of composites produced from a Sheet Molding Compound (SMC/C-R) and a Carbon/Polycarbonate (C/PC) towpreg using different laminate stacking sequences.
J. P. Nunes, A. S. Pouzada, C. A. Bernardo   +2 more
openaire   +2 more sources

Natural Aging of Biomaterials in Ambient and Physiological Environments

Advanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

Injectable Bone Cements: A Generational Framework for Bioactivity, Porosity, and Mechanobiological Design at the Nanoscale

Advanced NanoBiomed Research, EarlyView.
Key demographic, biological, and material considerations that drive the need for advanced injectable bone cement technologies. Injectable bone cements (IBCs) are widely used in orthopaedic and craniofacial applications due to their minimally invasive delivery and ability to provide early mechanical stabilisation.
Frank Fei, Yogambha Ramaswamy, Young Jung No   +2 more
wiley   +1 more source

Comparing the Flexural Strength of PMMA Enhanced with Glass Fibers and Aluminum Oxide: An In Vitro Study

Journal of Pharmacy and Bioallied Sciences
Aim: To evaluate the flexural strength of Heat Cure Denture Base Resin reinforced with glass fiber and aluminum Oxide. Objectives: To evaluate and compare the flexural strength (FS) of conventional heat cure acrylic resin denture base (PMMA) and ...
Surabhi Pravin Dudhe, Prajakta Thool, P Suganya, Shekhar Gupta, Ban Ahmed Almudarris, Guntaas Bedi   +5 more
doaj   +1 more source

Flexural Behavior of Textile-Reinforced Concrete

MATEC Web of Conferences, 2016
This paper deals with the flexural behaviour of textile-reinforced concrete (TRC). Two samples of TRC made of high strength reinforcing fabrics made of glass and carbon rovings were produced.
Volkova Anna, Paykov Alexey, Semenov Sergey, Stolyarov Oleg, Melnikov Boris   +4 more
doaj   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

Journal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli, Jacob L. Pretko, Christopher W. Seay, Steven R. Lustig   +3 more
wiley   +1 more source

Characterizing Heterogeneity in Post‐Consumer Rigid PP Packaging Waste: Implications for Object and Property‐Based Flake Sorting

Journal of Applied Polymer Science, EarlyView.
Commercial PP packaging grades span wide ranges in melt flow rate and stiffness, defining distinct application‐specific property spaces. Post‐consumer rigid PP products populate these spaces heterogeneously, with processing method and degradation shifting properties beyond virgin grade benchmarks.
Moritz Mager, Nikolai Kuhn, Alexander Felgel‐Farnholz, Joerg Fischer   +3 more
wiley   +1 more source

Three‐Dimensional Highly Thermally Conductive Graphene Blocks by Multiscale Blending and Multistage Pressure Induction

Carbon Energy, EarlyView.
An expandable‐thickness graphene block (GPB) with high thermal conductivity synthesized through multiscale blending and multistage pressure induction (MBP) achieves a record thickness of 12.1 mm, which is more than 10 times that of existing graphene materials. The maximum thermal diffusion ability of GPB‐MBP reaches 6.3 W/K, which offers a new approach
Liyu Zhang, Haitao Hu, Xuan Li, Haihan Xu, Xiaoying Gao, Ruishi Lin, Yingze Meng, Jiaxin He, Shoujin Chang, Guoliang Ding   +9 more
wiley   +1 more source