Results 91 to 100 of about 20,397,556 (300)

Correlation-based Scan Matching using Ultrasonic Sensors for EKF Localization

, 2018
This paper presents a localization method for a mobile robot equipped with only low-cost ultrasonic sensors. Correlation-based Hough scan matching was used to obtain the robot's pose without any predefined geometric features.
Chung, WK, Minyoung Choi, Jinwoo Choi
core   +1 more source

Nondestructive quantification of internal raster path for additively manufactured components via ultrasonic testing

Scientific Reports
This work investigates the viability of discerning the raster pattern of additively manufactured components using high frequency ultrasonic nondestructive testing. Test coupons were fabricated from poly cyclohexylenedimethylene terephthalate glycol using
Atik Amin, David A. Jack, Pruthul Kokkada Ravindranath, Trevor J. Fleck   +3 more
doaj   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

Advanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash, Rituparna Mohanty, Jack Leber, David Nageb, Mirella Richard, Sharan Singh, Amin Reihani   +6 more
wiley   +1 more source

Reservoir‐Driven Neuromorphic Computing Based on Composite Rare‐Earth/Transition Metal Oxide Memristor

Advanced Functional Materials, EarlyView.
A defect‐engineered Ag/Gd2O3:Nb2O5/Pt rare earth composite oxide memristor enables stable multilevel reservoir states through pulse driven conductance modulation. Experimentally measured device responses are incorporated into a device aware reservoir computing framework for CIFAR‐100 image classification, highlighting the potential of rare earth ...
Hammad Ghazanfar, Haider Abbas, Muhammad Rabeel, Honggyun Kim, Ghulam Dastgeer, Muhammad Nasim, Furqan Zahoor, Yawar Abbas, Waqas Ahmad, Deok‐kee Kim   +9 more
wiley   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

Advanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar, María del Carmen Giménez‐López   +1 more
wiley   +1 more source

Experimental investigation of ultrasonic immersion testing for complex-geometry additively manufactured 316 L stainless steel

Materials Research Express
This paper presents a case study of immersion ultrasonic C-scan inspection of a single fatigue-cracked laser powder bed fusion 316 L stainless steel double-hourglass specimen, relevant to the qualification of additively manufactured components for ...
Mohammed Siddig, Yasemin Inc
doaj   +1 more source

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

Advanced Functional Materials, EarlyView.
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon, Jian Ni, Sungmo Park, Yang Xu, Yong Chen   +4 more
wiley   +1 more source

Background Noise Removal in Ultrasonic B-scan Images Using Iterative Statistical Techniques

, 2008
The interpretation of ultrasonic B-scan images can be a time-consuming process and its success depends on operator skills and experience. Removal of the image background will potentially improve its quality and hence improve operator diagnosis.
P. C. Charlton, Donne, K. E., Wells, I., I. Wells, S. Mosey, Charlton, P. C., K. E. Donne, Mosey, S.   +7 more
core   +1 more source

Trajectory planning method for improving alignment accuracy of probes for dual-robot air-coupled ultrasonic testing system

International Journal of Advanced Robotic Systems, 2019
Composite workpieces, especially the complex-curved surfaces composite workpieces, have been increasingly used in different industries. Non-destructive testing of these parts has become an urgent problem to be addressed.
Canzhi Guo, Chunguang Xu, Dingguo Xiao, Juan Hao, Hanming Zhang   +4 more
doaj   +1 more source

Electrical‐Programming‐Free Neural Crossbars Enabled by Photochemical Weight Patterning

Advanced Functional Materials, EarlyView.
A flexible neural‐crossbar hardware system enabled by electrical‐programming‐free, mask‐defined, array‐parallel photochemical weight patterning is demonstrated. Trained weights are physically implemented across the array, supporting multilevel programming, bending‐stable operation and reconfiguration, substrate reuse, and low‐energy readout while ...
Hyo‐Bin Jang, Ji‐Hoon Choi, Juhyung Seo, Seungwoo Baek, Hocheon Yoo, Hea‐Lim Park   +5 more
wiley   +1 more source