Results 21 to 30 of about 114,884,693 (164)

Smart Lock using Image Recognition [PDF]

open access: yes, 2020
In the 21st century, for a digital lifestyle in a smart city, security is one of the core ingredients to ensure digital continuity. The existing smart security technologies use a smartphone, card, and fingerprint that need additional devices to carry or ...
Dr. Syed Akhter Hossain   +3 more
core   +1 more source

ZALEŻNOŚĆ CZĘSTOTLIWOŚCIOWA NAPIĘCIOWEGO WSPÓŁCZYNNIKA MAGNETOELEKTRYCZNEGO W CERAMIKACH (BiFeO3)x-(BaTiO3)1-x

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2015
Zależność właściwości magnetoelektrycznych od składu chemicznego w ceramikach (BiFeO3)x-(BaTiO3)1-x została w ostatnim czasie zaobserwowana i odnotowana w literaturze.
Tomasz Pikula, Karol Kowal, Piotr Guzdek
doaj   +1 more source

Supporting smallholders’ decision making: managing trade-offs and synergies for sustainable agricultural intensification

open access: yesInternational Journal of Agricultural Sustainability, 2021
Meeting multiple, often competing objectives when seeking to sustainably intensify their agricultural operations is a constant challenge for smallholder farmers in Sub-Saharan Africa.
Barbara Adolph   +16 more
doaj   +1 more source

Short-Term Magnetic Field Variations From the Post-depositional Remanence of Lake Sediments

open access: yesFrontiers in Earth Science, 2018
Paleomagnetic records obtained from lake sediments provide important constraints on geomagnetic field behavior. Secular variation recorded in sediments is used in global geomagnetic field models, particularly over longer timescales when archeomagnetic ...
Andreas Nilsson   +2 more
doaj   +1 more source

Exploring the Political Discursive Lock-Ins on Sustainable Aviation in Sweden

open access: yesEnergies, 2021
This article analyses the political discourse about governing the future of the aviation industry in Sweden and how a polarized and entrenched discursive path dependency around aviation makes it difficult to invest into aviation’s possible futures as a ...
Aneta Kulanovic, Johan Nordensvärd
doaj   +1 more source

Lock-In Thermal Test Simulation, Influence, and Optimum Cycle Period for Infrared Thermal Testing in Non-Destructive Testing

open access: yesSensors, 2022
Lock-in thermal tests (LTTs) are one of the best ways to detect defects in composite materials. The parameter that most affects their performance is the cycle period of the stimulation wave.
António Ramos Silva   +3 more
doaj   +1 more source

Localization of delamination in composite test specimen

open access: yesMATEC Web of Conferences, 2018
The main purpose of paper is presented an innovative approach in the field of infrared thermal imaging and its integration into the area of engineering applications. As the test specimen was selected composite rod with lengthwise composite fibers to each
Sapieta Milan   +2 more
doaj   +1 more source

Fenntarthatóság és klímaadaptáció a városfejlesztésben – lock-in elemzés Budapest XVII. kerületének példáján keresztül

open access: yesTér és Társadalom, 2021
A klímaváltozás hatásai jelentősen befolyásolják a törekvést a fenntarthatóság irányába. A városkutatási témák között az utóbbi években a fenntartható fejlődés fogalma és célrendszere mellett előtérbe került a klímaadaptáció, azaz a klímaváltozáshoz ...
Buzási Attila, Csizovszky Anna
doaj   +1 more source

Kényszerpályák a hazai nagyvárosok fejlesztési stratégiáiban

open access: yesTér és Társadalom
A városi fenntarthatósággal kapcsolatos tudományos diskurzus több évtizedre nyúlik vissza, melyet a jelenkori városkutatások egy erősen interdiszciplináris mederben folytatnak mind a hazai, mind a nemzetközi tudományos térben.
Attila Buzási   +1 more
doaj   +1 more source

USING OF ACTIV THERMOGRAPHY AND LOCK-IN METHOD WITH ULTRASOUND EXICATION FOR DETECTION OF MATERIAL DEFECTS [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2014
The main purpose of paper is presented an innovative approach in the field of infrared thermal imaging and its integration into the area of engineering applications.
Milan SAPIETA   +2 more
doaj  

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