Results 1 to 10 of about 503,264 (268)

Power System Fault Classification and Prediction Based on a Three-Layer Data Mining Structure

open access: yesIEEE Access, 2020
In traditional fault diagnosis methods in power systems, it is difficult to accurately classify and predict the types of faults. With the emergence of big data technology, the fault classification and prediction methods based on big data analysis and ...
Yunliang Wang   +3 more
doaj   +1 more source

The COVID-19 Crisis in Romania: A Hypothesis around Penal Populism and Legal Culture

open access: yesActa Universitatis Lodziensis Folia Iuridica, 2021
In this paper I seek to present a working hypothesis to be eventually developed in a future contribution, namely that the COVID-19 crisis exposed some problematic behaviours evocative of an authoritarian ethos on the part of both public authorities and ...
Alexandra Mercescu
doaj   +1 more source

Dynamic Modeling and Analysis of a Lightweight Robotic Manipulator in Joint Space

open access: yesArchive of Mechanical Engineering, 2015
W artykule przedstawiono efektywny algorytm do analizy dynamiki manipulatora przestrzennego o otwartym łancuchu kinematycznym. Równania opisujace dynamike układu zapisano w formie algebraiczno-macierzowej w przestrzeni współrzednych złaczowych ...
Wolinski Łukasz, Malczyk Paweł
doaj   +1 more source

Robust Design Optimization and Emerging Technologies for Electrical Machines: Challenges and Open Problems

open access: yesApplied Sciences, 2020
The bio-inspired algorithms are novel, modern, and efficient tools for the design of electrical machines. However, from the mathematical point of view, these problems belong to the most general branch of non-linear optimization problems, where these ...
Tamás Orosz   +6 more
doaj   +1 more source

On Theory of Space Power

open access: yesМеждународная аналитика, 2021
Bowen, Bleddyn E. War in Space: Strategy, Spacepower, Geopolitics. Edinburgh: Edinburgh University Press, 2020.
D. V. Stefanovich
doaj   +1 more source

Catalysts by Design: The Power of Theory [PDF]

open access: yesAccounts of Chemical Research, 2017
Theoretical design of effective catalysts, in conjunction with the identification of guiding design principles and strategies, is a Holy Grail in Chemistry. Although further progress will benefit from additional computational advances, theoretical studies have already enhanced the design of molecular electrocatalysts, photocatalysts, and enzymes.
openaire   +2 more sources

Parametric Control to a Type of Descriptor Quasi-Linear Systems via Output Feedback

open access: yesIEEE Access, 2019
This paper investigates the parametric design method to a type of descriptor quasi-linear systems whose coefficient matrices contain system variables and time-varying parameters.
Da-Ke Gu, Da-Wei Zhang, Guang-Ren Duan
doaj   +1 more source

Experimental study on the mass transfer and microscopic distribution characteristics of remaining oil and CO2 during water-miscible CO2 flooding

open access: yesJournal of CO2 Utilization
Accurate understanding and quantitative characterization of the microscopic distribution and mobilization mechanisms of remaining oil are crucial for further enhancing oil recovery during CO2 flooding.
Lian Li   +5 more
doaj   +1 more source

Thermal Characteristics of Positive Leaders under Different Electrode Terminals in a Long Air Gap

open access: yesEnergies, 2019
The thermal characteristics of the positive leader discharges occurring under the different electrode terminals in a 1 m rod-plate air gap were studied quantitatively using Mach−Zehnder interferometry and a high-speed video camera.
Mingxing Du   +7 more
doaj   +1 more source

The Identity Theory of Powers Revised [PDF]

open access: yesErkenntnis, 2019
AbstractDispositionality and qualitativity are key notions to describe the world that we inhabit. Dispositionality is a matter of what a thing is disposed to do in certain circumstances. Qualitativity is a matter of how a thing is like. According to the Identity Theory of powers, every fundamental property is at once dispositional and qualitative, or a
openaire   +2 more sources

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