Results 191 to 200 of about 1,387,057 (347)

Color vision in school-age children: assessment of a new test [PDF]

open access: bronze, 2001
Guilherme Magalhães Martins   +6 more
openalex   +1 more source

How to Achieve High Spatial Resolution in Organic Optobioelectronic Devices?

open access: yesAdvanced Materials Interfaces, EarlyView.
This study explores how the optoelectronic properties of organic semiconductors impact on the resolution of light‐activated bioelectronic interfaces. Using photovoltage and photocurrent microscopy techniques, the authors show that H2PC/PTCDI heterojunctions enable a resolution down to 6.5 µm due to low carrier mobility along the heterojunction.
Luca Fabbri   +9 more
wiley   +1 more source

Wide‐Field Bond Quality Evaluation Using Frequency Domain Thermoreflectance with Deep Neural Network Feature Reconstruction

open access: yesAdvanced Materials Interfaces, EarlyView.
In this work, wide‐field (>1 mm2) frequency‐domain thermoreflectance (FDTR) hyperspectral imaging is used to image subsurface indium bump bonds 50 µm below the surface. Thermal analysis with Monte Carlo uncertainty propagation is used to evaluate bump quality, while a trained deep neural network (can rapidly reconstruct bump geometry contact area maps.
Amun Jarzembski   +10 more
wiley   +1 more source

Magnetoelastic Sensing: A Study of Flexible Magnetoelastic Strain Sensors for Highly Deformed Posture Perception

open access: yesAdvanced Materials Technologies, EarlyView.
This study proposes a magnetoelastic strain sensor for highly deformed posture perception. The sensor can maintain stable sensing signal output under significant strain (200%) and at varying stretch rates (ranging from 1000 to 8000 mm min−1). The sensor design is simple and can be applied to soft robots and wearable devices.
Jing Shu   +12 more
wiley   +1 more source

Wearable Electrohydraulic Actuation For Salient Full‐Fingertip Haptic Feedback

open access: yesAdvanced Materials Technologies, EarlyView.
This study introduces a wearable soft robotic system that combines a flat and conformable electrohydraulic pump, a mechanically transparent channel, and an ultra‐thin fingertip chamber to provide salient haptic feedback that imitates natural touch experiences.
Yitian Shao   +4 more
wiley   +1 more source

Beyond 3D: Smart Material Systems for Microscale 4D Printing

open access: yesAdvanced Materials Technologies, EarlyView.
Smart materials exhibit shape changes in response to their environment, enabling scientists to go beyond 3D in the rapidly growing field of 4D printing. This review covers recent advances, current challenges, and emerging trends in 4D printing on the microscale.
Daniel Maher   +3 more
wiley   +1 more source

Optimizing Metamaterial Inverse Design with 3D Conditional Diffusion Model and Data Augmentation

open access: yesAdvanced Materials Technologies, EarlyView.
A generative AI model, the 3D conditional diffusion model (3D‐CDM), is introduced to enhance the inverse design of voxel‐based metamaterials. A data augmentation technique based on topological perturbation expands the dataset, further improving generation quality and accuracy.
Xiaoyang Zheng   +2 more
wiley   +1 more source

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