Results 21 to 30 of about 1,191,977 (372)

A Variational Beam Model for Failure of Cellular and Truss‐Based Architected Materials

open access: yesAdvanced Engineering Materials, EarlyView., 2023
Herein, a versatile and efficient beam modeling framework is developed to predict the nonlinear response and failure of cellular, truss‐based, and woven architected materials. It enables the exploration of their design space and the optimization of their mechanical behavior in the nonlinear regime. A variational formulation of a beam model is presented
Konstantinos Karapiperis   +3 more
wiley   +1 more source

Unsupervised discovery of thin-film photovoltaic materials from unlabeled data

open access: yesnpj Computational Materials, 2021
Quaternary chalcogenide semiconductors (I2-II-IV-X4) are key materials for thin-film photovoltaics (PVs) to alleviate the energy crisis. Scaling up of PVs requires the discovery of I2-II-IV-X4 with good photoelectric properties; however, the structure ...
Zhilong Wang   +4 more
doaj   +1 more source

Development of a dually operated biomass briquette press [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
Technological transformation of biomass residues into briquettes is essential for industrial energy applications. This research was undertaken to design, fabricate, and test a dually operated screw press for briquette production.
Adeshina Fadeyibi   +1 more
doaj   +1 more source

Topology Optimization of Lattice Support Structure for Cantilever Beams Fabricated Via Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView., 2023
A numerical scheme is presented to design a lattice support for metallic components additively built via laser powder bed fusion. Results show that thermal‐induced distortion can be respectively reduced by 69%, 58%, and 50% in comparison to a uniform lattice, a fully solid support, and a truss‐based lattice support.
Jiazheng Hu   +2 more
wiley   +1 more source

Microneedle for transdermal drug delivery: current trends and fabrication

open access: yesJournal of Pharmaceutical Investigation, 2021
Transdermal delivery has the advantage of bypassing the first-pass effect and allowing sustained release of the drug. However, the drug delivery is limited owing to the barrier created by the stratum corneum.
J. Jung, S. Jin
semanticscholar   +1 more source

Advances in Carbon-Based Microfiber Electrodes for Neural Interfacing

open access: yesFrontiers in Neuroscience, 2021
Neural interfacing devices using penetrating microelectrode arrays have emerged as an important tool in both neuroscience research and medical applications.
Maryam Hejazi   +7 more
doaj   +1 more source

Architected Lattices with a Topological Transition

open access: yesAdvanced Engineering Materials, EarlyView., 2023
This article develops topological metamaterials showing multidirectional two‐step deformation under compression by embedding contact‐enabled topological mechanisms into lattice structures. Experiments on 3D‐printed 2D and 3D lattices and finite element simulations are conducted to demonstrate the working principle of the topological metamaterials.
Shivam Agarwal, Lihua Jin
wiley   +1 more source

Recyclable soft photonic crystal film with overall improved circularly polarized luminescence

open access: yesNature Communications, 2023
Existing circularly polarized luminescence materials can hardly satisfy the requirements of both large luminescence dissymmetry factor and high luminescent quantum yield, which hinders their practical applications.
Yonghong Shi   +5 more
doaj   +1 more source

Structuring Free-Standing Foils for Laser-Driven Particle Acceleration Experiments

open access: yesFrontiers in Physics, 2021
The recent development of petawatt-class laser systems sets a focus on the development of ultra-thin free-standing targets to access enhanced particle acceleration schemes vital for future applications, such as, medical and laser-driven nuclear physics ...
Cristina C. Gheorghiu   +6 more
doaj   +1 more source

High-yield, wafer-scale fabrication of ultralow-loss, dispersion-engineered silicon nitride photonic circuits [PDF]

open access: yesNature Communications, 2020
Low-loss photonic integrated circuits and microresonators have enabled a wide range of applications, such as narrow-linewidth lasers and chip-scale frequency combs.
Junqiu Liu   +7 more
semanticscholar   +1 more source

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