Results 41 to 50 of about 1,713 (291)

Automatic Infrared Ship Target Segmentation Based on Structure Tensor and Maximum Histogram Entropy

open access: yesIEEE Access, 2020
The existing infrared (IR) ship target segmentation methods may suffer serious performance degradation in the situation of diverse background clutters and ship targets.
Yongsong Li   +4 more
doaj   +1 more source

FOD Monitoring Radar Imaging Research Using Arc Synthetic Aperture System

open access: yesHangkong gongcheng jinzhan, 2021
Foreign object debris(FOD)generally refers to a certain type of foreign substances,which can influence the taking off and landing of airport flights.Currently,FOD monitoring in the vast majority of airports across the world is operated manually.In order ...
ZHANG Lin, LONG Chao, TONG Jianwen
doaj   +1 more source

Clutters and Semimatroids

open access: yesEuropean Journal of Combinatorics, 1986
Generalizing the concept of matroid the author introduces the concept of semimatroid, and investigates its fundamental properties. Some open problems concerning semimatroids are stated and discussed in the final section of the paper.
openaire   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

open access: yesAdvanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen   +19 more
wiley   +1 more source

Multitarget Tracking Algorithm Using Multiple GMPHD Filter Data Fusion for Sonar Networks

open access: yesSensors, 2018
Multitarget tracking algorithms based on sonar usually run into detection uncertainty, complex channel and more clutters, which cause lower detection probability, single sonar sensors failing to measure when the target is in an acoustic shadow zone, and ...
Xueli Sheng   +4 more
doaj   +1 more source

From Clutters to Matroids [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2014
This paper deals with the question of completing a monotone increasing family of subsets $\Gamma$ of a finite set $\Omega$ to obtain the dependent sets of a matroid. Specifically, we provide several natural processes for transforming the clutter $\Lambda$ of the inclusion-minimal subsets of the family $\Gamma$ into the set of circuits ${\cal C}({\cal M}
openaire   +3 more sources

Ideal Clutters [PDF]

open access: yes, 2018
Let E be a finite set of elements, and let C be a family of subsets of E called members. We say that C is a clutter over ground set E if no member is contained in another. The clutter C is ideal if every extreme point of the polyhedron { x>=0 : x(C) >= 1
Abdi, Ahmad
core  

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Passive radar polarisation filtering technology research

open access: yesThe Journal of Engineering, 2019
This study researches the potential benefits of clutter suppression in polarisation filtering technology. In the author's laboratory, the antenna of the experimental system has been designed, called dual-polarised Yagi-Uda antenna and the antenna can ...
Yucheng Yi   +3 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

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