Results 191 to 200 of about 600,184 (313)

A Lightweight and Transparent Composite-Perforated Janus Acoustic Metamaterial: Multi-Band Sound Absorption Realized via Asymmetric Integrated Design. [PDF]

Materials (Basel)
Liu X, Zhang G, Zhao J, Zhang R, Hu P.
europepmc   +1 more source

Surface Locomotion of Cell‐Sized Microrobots Subject to Adhesive Heterogeneity

Small, EarlyView.
Chemically powered, cell‐sized microrobots exhibit translational, circular, or spiral motion through a balance among self‐phoretic propulsion, drag, gravity, and heterogeneous surface interactions. Experiments show that microrobot design and substrate conditions regulate both mobility and trajectory type.
Byung Ha Kang, Sungyun Yang, Hyeongho Min, Michael S. Strano   +3 more
wiley   +1 more source

Bio-Inspired Blade Serrations: A Review on Owl-Based Strategies for Aeroacoustic Noise Mitigation. [PDF]

Biomimetics (Basel)
Nieto A, Marin-Calvo N.
europepmc   +1 more source

Electrostatic Control of Terahertz High‐Harmonic Generation in Turbostratically Stacked Graphene

Small Methods, EarlyView.
This study investigates electrostatic control of terahertz high‐harmonic generation in top‐gated turbostratic multilayer graphene. A quantitative model combining graphene's thermodynamic nonlinear terahertz response with multilayer bias screening reproduces the experimental yields.
Seong Cheol Lee, Donghak Oh, Wontae Kim, Soojeong Baek, Dongho Lee, Bumki Min, Fabian Rotermund   +6 more
wiley   +1 more source

FEM-Based Design of Mass-Spring Acoustic Matching Layers for Ultra-High-Frequency Ultrasonic Transducers with Half-Concave Piezoelectric Elements. [PDF]

Sensors (Basel)
Zhao J, Zhang Z, Li Z, Li Y, Li Y, Huang G, Yang Y.   +6 more
europepmc   +1 more source

Programmable Porosity in Polymers via Microfluidic Templating and 3D Printing

Small Methods, EarlyView.
Fluid templating is a powerful way to produce porous polymers. Microfluidic technologies enable fine control over the dimension and packing of bubbles and droplets. Combined with additive manufacturing, microfluidic templating enables the creation of polymeric functionally graded porous materials in which both porosity and three‐dimensional geometry ...
Federico Serpe, Roberta Angelini, Andrea Barbetta, Vanessa Rosciardi   +3 more
wiley   +1 more source

Biomimetic Mechanism Transfer in Interior Environmental Comfort: A Systematic Mapping and Evidence-Stratified Framework. [PDF]

Biomimetics (Basel)
Yasar D.
europepmc   +1 more source

Toward Enhanced Safety Management in Wave Energy Power Plant Construction Projects: FMEA and HAZOP Combination

Safety Science and Technology, EarlyView.
Consolidated FMEA–HAZOP safety management framework for WEC construction projects. ABSTRACT This study presents an advanced safety management framework for “Wave Energy Converter” (WEC) projects, addressing the inherent uncertainty, technological complexity, and environmental exposure of offshore renewable energy systems.
Panagiotis K. Marhavilas, Konstantinos Douitsis, Nick Delianidis, Stefanos Keskinis, Georgios Charalampos Kafoutis   +4 more
wiley   +1 more source

Does ChatGPT need a psychiatrist? Similarities between human psychopathology and errors in large language models. [PDF]

NPP Digit Psychiatry Neurosci
de Boer JN, Ciampelli S, Hailemariam AK, Koops S, Sommer IEC.   +4 more
europepmc   +1 more source

Probabilistic estimation of reliable sensor spacing for wire break detection in prestressed concrete using acoustic emission technique

Structural Concrete, EarlyView.
Abstract The acoustic emission (AE) technique has proven to be an effective method for detecting individual wire breaks in prestressed concrete structures affected by stress corrosion cracking (SCC). However, despite its widespread application, the quantitative assessment of AE monitoring reliability and optimal sensor placement remains unresolved ...
Max Fiedler, Steffen Marx
wiley   +1 more source