Results 91 to 100 of about 47,507 (304)

Additive‐Manufactured, Multifunctional Bioreactor Technology for Dynamic Culture of 3D Bioprinted Tissue Models

open access: yesAdvanced Materials Technologies, EarlyView.
We introduce an additively manufactured bioreactor with a perfusion flow system and integrated temperature and pH sensors for skeletal muscle tissue biofabrication. The bioreactor's performance was evaluated by assessing the viability, spreading of the myoblast cells in a printed scaffold, and contraction of the isolated murine musculi interossei ...
Lys Sprenger   +9 more
wiley   +1 more source

Benefit of a monitoring system in situ for direction finding antennas

open access: yes, 2013
International audienceAntenna arrays works at their peak performance when they are well calibrated at the factory. Once they are employed in a real environment, they might be subject to unpredictable disturbances.
Ghattas, Lama   +4 more
core   +1 more source

Microwave-photonic architecture for direction finding of LPI emitters: post-processing for angle of arrival estimation [PDF]

open access: yes, 2016
Direction finding (DF) systems are fundamental electronic support measures for electronic warfare. A number of DF techniques have been developed over the years; however, these systems are limited in bandwidth and resolution and suffer from a complex ...
Ong, Chee Kiong
core  

Bidirectional Process Prediction in the Laser‐Induced‐Graphene Production Using Blackbox Deep Learning

open access: yesAdvanced Materials Technologies, EarlyView.
This study shows that a lightweight blackbox neural network provides a practical, cost‐effective solution for bidirectional process prediction in laser‐induced graphene (LIG) fabrication. Achieving high predictive performance with minimal overhead, the approach democratizes machine learning (ML) for resource‐limited environments.
Maxim Polomoshnov   +3 more
wiley   +1 more source

A novel framework for identifying fishing grounds from AIS data containing vessels of unknown types

open access: yesFrontiers in Marine Science
To address the issue of precisely identifying fishing grounds in vast sea areas, this study proposes a framework that includes a fishing behavior detection model and a fishing ground identification model, considering vessels of unknown types. The absence
Changhai Huang   +4 more
doaj   +1 more source

High resolution wideband direction finding arrays based on optimum symmetrical number system encoding [PDF]

open access: yes, 1998
Electronics Letters, Vol. 34, No. 11, May 1998, pp. 1062-1064A new interferometer direction finding (DF) arry architecture based on the optimum symmetrical number system (OSNS) is presented. OSNS arrays are capable of unambiguous high resolution DF over
Jenn, D.C.   +3 more
core  

Machine Learning Enables Inverse Design of Optically Driven Microscopic Metavehicles

open access: yesAdvanced Optical Materials, EarlyView.
Machine‐learning‐based inverse design is used optimize “metavehicles” — flat microparticles based on metagratings that generate a strong lateral optical force from normally incident light. The optimized design exhibits a force efficiency of ∼88% and a measured propulsion speed in water much higher than previously reported, demonstrating that inverse ...
Vasilii Mylnikov   +2 more
wiley   +1 more source

Practical CNN-Based Beam Selection for Wideband Single-Receiver Switched Beam Antenna

open access: yesIEEE Access
In this paper, a beam selection method is presented for a switched beam antenna (SBA) specifically designed and built for long-range wireless communications.
Mahdi Jamshidi, Seyed Hassan Sedighy
doaj   +1 more source

Identifying Physical Interactions in Contact‐Based Robot Manipulation for Learning from Demonstration

open access: yesAdvanced Robotics Research, EarlyView.
Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek   +3 more
wiley   +1 more source

Theory and performance of a matched-filter doppler direction-finding system [PDF]

open access: yes, 1970
A new radio direction-finding (DF) technique which applies matched-filter theory to the DF problem is presented. The new technique, called Matched-Filter Doppler Direction Finding (MFD DF) is based on the doppler DF principle in which a rotating antenna,
Orejuela, Henry, Myers, Glen A.
core  

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