Results 71 to 80 of about 40,069 (287)

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

open access: yesAdvanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De   +3 more
wiley   +1 more source

Tracking by Identification Using Computer Vision and Radio

open access: yesSensors, 2012
We present a novel system for detection, localization and tracking of multiple people, which fuses a multi-view computer vision approach with a radio-based localization system.
Rok Mandeljc   +3 more
doaj   +1 more source

A Construction of the Real Time Monitoring System of the Solar Radio Disturbance [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
As the first step of the real time monitoring system of the solar radio disturbance, we constructed the control system of the solar radio telescope.
Joh-Na Yoon   +3 more
doaj   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Implementation Method of GEO and LEO Satellite Tracking Compatible Flat-Plate Antenna

open access: yes天地一体化信息网络, 2022
In order to improve the portability, disassembly and usability of the satellite communication antenna products in the fi eld, a GEO and LEO satellite tracking compatible fl at-plate antenna implementation method was proposed, the micro strip array ...
Jian CHEN   +4 more
doaj   +2 more sources

Determination of the masses of the Moon and Venus and the astronomical unit from radio tracking data of the Mariner II SPACECRAFT [PDF]

open access: yes
Masses of Venus and Moon, and astronomical unit determined by Mariner II radio tracking ...
Anderson, J. D.
core   +1 more source

Study design and mark-recapture estimates of dispersal: A case study with the endangered damselfly Coenagrion mercuriale [PDF]

open access: yes, 2012
Accurate data on dispersal ability are vital to the understanding of how species are affected by fragmented landscapes. However, three factors may limit the ability of field studies to detect a representative sample of dispersal events: (1) the number of
Hassall, C, Thompson, DJ
core   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

open access: yesAdvanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou   +6 more
wiley   +1 more source

A Review of Miniature Radio Transmitters for Wildlife Tracking

open access: yesSensors
This article surveys the literature on miniature radio transmitters designed to track free-ranging wild animals using emitter-localization techniques.
Sivan Toledo
doaj   +1 more source

DOPPLER STATION FOR ORBITAL TRACKING OF LOW-ORBIT SPACECRAFTS BY THEIR RADIO BEACON SIGNALS

open access: yesOdessa Astronomical Publications, 2018
A ground station of orbital tracking of low-orbit spacecrafts has been developed and tested in the RI "Mykolaiv Astronomical Observatory". The station uses the Doppler shift of frequencies of signals radiated by spacecraft radio beacons for their orbital
F. Bushuev   +5 more
doaj   +1 more source

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