Results 21 to 30 of about 368,322 (300)

A New Compact Triple-Band Triangular Patch Antenna for RF Energy Harvesting Applications in IoT Devices

open access: yesSensors, 2022
This work proposes a new compact triple-band triangular patch antenna for RF energy harvesting applications in IoT devices. It is realized on Teflon glass substrate with a thickness of 0.67 mm and a relative permittivity of 2.1.
Chemseddine Benkalfate   +3 more
doaj   +1 more source

Optimized Fractional Order Based Droop Control with Improving the Flexibility of a Microgrid [PDF]

open access: yesE3S Web of Conferences, 2022
This work presents an improved four-levels hierarchical control strategy for flexible microgrid based on three-phase voltage source inverters (VSIs) connected in parallel.
Hadjaidji Fatma-Zohra   +2 more
doaj   +1 more source

Express method for contactless measurement of parameters of thermoelectric materials

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015
The paper presents an original method for contactless express measurement of parameters of thermoelectric materials. The presence of a combination of AC and DC magnetic fields in the gap of the oscillating circuit, where the monitored sample of the ...
A. A. Ashcheulov   +2 more
doaj   +1 more source

Mathematical Analysis of a Thermostatted Equation with a Discrete Real Activity Variable

open access: yesMathematics, 2020
This paper deals with the mathematical analysis of a thermostatted kinetic theory equation. Specifically, the assumption on the domain of the activity variable is relaxed allowing for the discrete activity to attain real values.
Carlo Bianca, Marco Menale
doaj   +1 more source

Category Theory Framework for System Engineering and Safety Assessment Model Synchronization Methodologies

open access: yesApplied Sciences, 2022
In recent decades, there has been a significant increase in systems’ complexity, leading to a rise in the need for more and more models. Models created with different intents are written using different formalisms and give diverse system representations.
Julien Vidalie   +3 more
doaj   +1 more source

Heterogeneous Models Integration for Safety Critical Mechatronic Systems and Related Digital Twin Definition: Application to a Collaborative Workplace for Aircraft Assembly

open access: yesApplied Sciences, 2022
Nowadays, several manufacturing systems are evolving towards a greater collaboration between human and robots. The development of such systems requires integrated design tasks involving many disciplines and domains such as systems engineering, safety ...
Faïda Mhenni   +6 more
doaj   +1 more source

Using multiple measures of teaching quality to strengthen teacher preparation

open access: yesEducation Policy Analysis Archives, 2020
We argue that teacher preparation programs considering approaches to assess teaching quality should choose measures that appropriately represent the complexity of teaching, have formative value in supporting teacher candidates develop as highly qualified
Jarod Kawasaki   +2 more
doaj   +1 more source

Quartz-tuning-fork enhanced photothermal spectroscopy for ultra-high sensitive trace gas detection.

open access: yesOptics Express, 2018
A gas sensing method based on quartz-tuning-fork enhanced photothermal spectroscopy (QEPTS) is reported in this paper. Unlike usually used thermally sensitive elements, a sharply resonant quartz-tuning-fork with the capability of enhanced mechanical ...
Yufei Ma   +4 more
semanticscholar   +1 more source

A Convergence Theorem for the Nonequilibrium States in the Discrete Thermostatted Kinetic Theory

open access: yesMathematics, 2019
The existence and reaching of nonequilibrium stationary states are important issues that need to be taken into account in the development of mathematical modeling frameworks for far off equilibrium complex systems.
Carlo Bianca, Marco Menale
doaj   +1 more source

Towards Model Synchronization for Consistency Management of Mechatronic Systems

open access: yesApplied Sciences, 2020
The development of a mechatronic system involves different designers having various viewpoints on the overall system to handle its complexity. Consequently, multiple models are created from a variety of domains such as mechanical, electronic, and ...
Aroua Berriche   +3 more
doaj   +1 more source

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