Results 1 to 10 of about 240,241 (189)

Tönnies, Ferdinand (1984). Comunitat i associació [PDF]

open access: yesPapers. Revista de Sociologia, 1986
Reseña de la obra de Ferdinand Tönnies publicada en 1984, Comunitat i associació. Barcelona: Edicions 62. 285 p.
Calero, Jorge
openaire   +6 more sources

Mechanical Compression Behaviour of "Green" Rocket Propellants [PDF]

open access: yesProblemy Mechatroniki, 2023
The issues related to mechanical resistance of solid rocket propellants, which can appear during storage or handling of the launching system, are considered to directly influence the burning performance.
Florin M. DÎRLOMAN   +5 more
doaj   +1 more source

A Dynamic Motion Analysis of a Six-Wheel Ground Vehicle for Emergency Intervention Actions

open access: yesSensors, 2021
To protect the personnel of the intervention units operating in high-risk areas, it is necessary to introduce (autonomous/semi-autonomous) robotic intervention systems.
Lucian Ștefăniță Grigore   +8 more
doaj   +1 more source

Spear-Phishing Susceptibility Stemming From Personality Traits

open access: yesIEEE Access, 2022
This study explores the psychological aspects of social engineering by analyzing personality traits in the context of spear-phishing attacks. Phishing emails were constructed by leveraging multiple vulnerable personality traits to maximize the success of
Sergiu Eftimie   +2 more
doaj   +1 more source

Preliminary design of aeroelastically tailored wing box structures with bend-twist coupling [PDF]

open access: yesITM Web of Conferences, 2019
Nowadays the composite materials have become the materials of choice to be used in the new aerospace structures that need to be not only larger and larger in size but also to be better performing in terms of aeroelastic responses inherent to thin-walled,
Mihaila-Andres Mihai   +5 more
doaj   +1 more source

Design and Evaluation of Screening Smoke Compositions Based on Red Phosphorus in Open Field Conditions

open access: yesApplied Sciences, 2022
This research describes the design and evaluation of screening smoke compositions based on red phosphorus (RP), in open field conditions. In defense applications, smoke is used for both signaling and screening.
Bogdan Gheorghe Pulpea   +6 more
doaj   +1 more source

Crowdsensing Influences and Error Sources in Urban Outdoor Wi-Fi Fingerprinting Positioning

open access: yesSensors, 2020
Wi-Fi fingerprinting positioning systems have been deployed for a long time in location-based services for indoor environments. Combining mobile crowdsensing and Wi-Fi fingerprinting systems could reduce the high cost of collecting the necessary data ...
Cristian-Liviu Leca   +2 more
doaj   +1 more source

UWB Sensing for UAV and Human Comparative Movement Characterization

open access: yesSensors, 2023
Nowadays, unmanned aerial vehicles/drones are involved in a continuously growing number of security incidents. Therefore, the research interest in drone versus human movement detection and characterization is justified by the fact that such devices ...
Angela Digulescu   +5 more
doaj   +1 more source

II. Ferdinánd Habsburg főherceg (1529–1595) portréja az Esztergomi Keresztény Múzeumban [PDF]

open access: yes, 2014
I would like to prove that the picture in the stock of the Esztergom Christian Museum attributed as North Italian painter, end of 16th century, Noble Man in Armor was painted by the unknown Bergamo follower of Francesco Terzi (Bergamo, 1523 – Roma 1591 ...
Katona, Ágnes
core   +2 more sources

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