Results 111 to 120 of about 3,235,809 (264)

Image of the Beta Kappa Omega chapter of the Alpha Kappa Alpha sorority, n.d.

open access: yes, 2010
This image shows a studio portrait of BKΩ chapter members who attended Wichita State University.Archival master image scanned in reflective mode as 48-bit RGB color TIFF using Epson 11000 XL.
Alpha Kappa Alpha
core  

Visible‐Blind Near‐Infrared Organic Vision Sensors for Imaging in Adverse Environmental Conditions

open access: yesAdvanced Optical Materials, EarlyView.
This work presents high‐performance visible‐blind NIR OPDs enabled by a multilayer optical modulation layer. The devices achieve strong visible‐light suppression and enhanced NIR sensitivity, enabling robust imaging in foggy or low‐light environments.
Baozhong Deng   +9 more
wiley   +1 more source

Image of the Beta Kappa Omega chapter of the Alpha Kappa Alpha sorority, n.d.

open access: yes, 2016
This image shows a studio portrait of BKΩ chapter members who attended Wichita State University.Archival master image scanned in reflective mode as 48-bit RGB color TIFF using Epson 11000 XL.
Alpha Kappa Alpha
core  

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

Mitigating Incidence Angle Effects in Airborne SAR Time-Series Crop Classification: Integrating Transfer Learning and Variational Mode Decomposition

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study introduces a novel approach to improve crop classification accuracy in airborne synthetic aperture radar (SAR) time-series imagery, focusing on overcoming the challenges posed by the incidence angle effect.
Xingli Qin   +6 more
doaj   +1 more source

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

open access: yesAdvanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu   +6 more
wiley   +1 more source

Efficient and Robust Standing Postures of Quadruped Robots

open access: yesAdvanced Robotics Research, EarlyView.
A calibrated static framework estimates load, optimizes torques, and adapts posture so quadruped robots stand efficiently and robustly under external payloads, achieving up to 50% lower torque demand. Inspired by the natural posture adjustments of animals under external loading, this article presents an optimization‐based framework for minimizing joint
Mohamad Kanaan   +5 more
wiley   +1 more source

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo   +4 more
wiley   +1 more source

Notes on the founding and membership of the Alpha Rho and BKΩ chapters of AKA, undated

open access: yes, 1970
Notes narrating the history of the Alpha Rho and BKΩ chapters of Alpha Kappa Alpha, along with memberships lists from various years.Archival master image scanned in reflective mode as 48-bit RGB color TIFF using Epson 11000 XL. Display image is 8-bit 150
Alpha Kappa Alpha
core  

Analysis of the Consistency of MRI Signs and Associated Neuroimaging Rating Scales for Patients with Idiopathic Normal Pressure Hydrocephalus

open access: yesCT Lilun yu yingyong yanjiu
Objective: To investigate the consistency of MRI signs and associated neuroimaging rating scales for patients with idiopathic normal pressure hydrocephalus (iNPH).
Rui LI   +4 more
doaj   +1 more source

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