Results 51 to 60 of about 843 (194)

Additional file 1: Figure S1. of One-Pot Method for Multifunctional Yolk Structured Nanocomposites with N-doped Carbon Shell Using Polydopamine as Precursor

open access: yes, 2017
The TEM images of core–shell Au@SiO2@Pdop (a, b) and Au@void@C(c, d) in the ratio of ethanol and water(10:1). Figure S2. The SEM imagines of Au(a,b), Au@SiO2@Pdop(c,d), Au@void@C(e,f). Figure S3. ln (C/C0) versus time for the reduction of MB.
Yongtao Wang (357359)   +4 more
core   +1 more source

Trash Talking: Anthropogenic Resources Facilitate Raccoon Interactions in Urban Environments

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Interactions between conspecifics play a key role in ecological processes, and habitat modification, such as urbanization, can alter the spatial and social behaviors that underpin such interactions. Here, we used high‐resolution GPS data to examine how resource distribution affects raccoon contact in an urban greenspace in Brooklyn, NYC.
Laura Dudley Plimpton   +10 more
wiley   +1 more source

Effectively Exerting the Reinforcement of Dopamine Reduced Graphene Oxide on Epoxy-Based Composites via Strengthened Interfacial Bonding

open access: yes, 2016
The effects of dopamine reduced graphene oxide (pDop-rGO) on the curing activity and mechanical properties of epoxy-based composites were evaluated.
Song Lin (329801)   +7 more
core   +1 more source

Sensor Position Estimation Method for IoT Using Mobile Reference Node

open access: yesIEEE Access, 2020
The paper proposes an innovative method of locating objects for the Internet of Things (IoT). The proposed method allows the position of a fixed measuring sensor (MS) to be estimated using one mobile base station with a known position moving around the ...
Jacek Stefanski, Jaroslaw Sadowski
doaj   +1 more source

Node‐pair selection scheme based on modified PDOP for cooperative triangulation

open access: yesElectronics Letters, 2018
This Letter proposes a scheme to select a pair of nodes for cooperative triangulation‐based localisation. The authors select the pair of nodes by considering the position dilution of precision (PDOP) and the noise power of the measured distance error. The proposed scheme reduces the localisation error by considering the measured distance errors of the ...
C. Im, C. Lee
openaire   +1 more source

High‐Performance of Piezoelectric and Ferroelectric PVDF ‐TrFE Based Composites Engineered by MWCNTs@BaTiO3 Heterostructure

open access: yesSmall, Volume 21, Issue 45, November 13, 2025.
During the polarization of MWCNTs@BaTiO3/PVDF‐TrFE composite films, due to the excellent conductivity of MWCNTs, the construction of MWCNTs@BaTiO3 heterostructure enhances the local electric field around BaTiO3 nanoparticles and facilitates easier switching of dipoles in both BaTiO3 and PVDF‐TrFE.
Kejun Shi   +4 more
wiley   +1 more source

Silver-Nanoparticle-Decorated Gold Nanorod Arrays via Bioinspired Polydopamine Coating as Surface-Enhanced Raman Spectroscopy (SERS) Platforms

open access: yes, 2019
The controlled deposition of nanoparticles onto 3-D nanostructured films is still facing challenges due to the uncontrolled aggregation of colloidal nanoparticles.
Mehmet Yilmaz, YILMAZ, Mehmet
core   +1 more source

Impact of Crowded Sky on GNSS Positioning

open access: yesPolytechnic Journal, 2023
Presently, there is a huge number of Global Navigation Satellite System (GNSS) satellites in orbit, and it is possible for users to have a clear view with a high number of satellites at a single epoch.
Shamal Fatah Ahmed
doaj   +1 more source

Lions (Panthera leo leo) Movement Patterns in a Sudanian Wooded Savannah in Central Africa

open access: yesAfrican Journal of Ecology, Volume 63, Issue 7, October 2025.
ABSTRACT Understanding the spatial ecology of African lions (Panthera leo) in human‐dominated landscapes is critical for their conservation. Using GPS collar data from three lions monitored between 2024 and 2025, we provide insights into their movement across the Benoue ecosystem in northern Cameroon and potential transboundary links with Chad.
Serge A. Kamgang   +9 more
wiley   +1 more source

Monitoring Aircraft Position Using EGNOS Data for the SBAS APV Approach to the Landing Procedure

open access: yesSensors, 2020
The aim of this paper is to present the problem of the implementation of the EGNOS (European Geostationary Navigation Overlay Service) data for the processing of aircraft position determination.
Kamil Krasuski, Damian Wierzbicki
doaj   +1 more source

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