Results 1 to 10 of about 460,519 (219)

Structural and electronic properties of β-MnO2 nanoclusters [PDF]

MATEC Web of Conferences, 2022
Pyrolusite (β-MnO2) was investigated for potential use in energy storage devices due to its promising properties for cathode materials in rechargeable lithium-ion batteries. A combination of evolutionary algorithm search techniques and density functional
Masoga Wesley P., Ngoepe Phuti E., Chauke Hasani R.   +2 more
doaj   +1 more source

Bursting Phenomenon and Chaos Phase Control in Plant Dynamics

Complexity, 2023
New complex features of a Pinus family plant subjected to wind load by proposing an analog electronic simulator with an active RC realization that mimics the real-time dynamics of the system was examined in this paper.
Makenne Yemeli Lola, Kengne Romanic, Pelap Francois Beceau   +2 more
doaj   +1 more source

Measurement of Mass Transfer Intensity in Gas–Liquid Medium of Bioreactor Circuit Using the Thermometry Method

Fluids, 2022
The development of energy-efficient solutions for large-scale fermenters demands a deep and comprehensive understanding of hydrodynamic and heat and mass transfer processes.
Ilya Starodumov, Irina Nizovtseva, Sergey Lezhnin, Sergey Vikharev, Vladislav Svitich, Pavel Mikushin, Dmitri Alexandrov, Nikolay Kuznetsov, Dmitri Chernushkin   +8 more
doaj   +1 more source

An accurate approach for modeling I-V characteristics of photovoltaic generators based on the two-diode model

Energy Conversion and Management: X, 2022
In this paper, the two-diode circuit model with seven parameters is used to model the electrical properties and the physical effects of photovoltaic modules. In this article, only the available information about the photovoltaic panel on its manufacturer’
Kawtar Tifidat, Noureddine Maouhoub, Abdelaaziz Benahmida, Fatima Ezzahra Ait Salah   +3 more
doaj   +1 more source

LMI-Based Robust H∞ Control of Photovoltaic Systems with Takagi-Sugeno Fuzzy Models [PDF]

EPJ Web of Conferences
This article develops a Takagi-Sugeno (T-S) fuzzy controller for solar systems' Maximum Power Point Tracking (MPPT). The nonlinear dynamics of the PV generator and the Boost converter are described using a continuous-time T-S fuzzy model.
Bengra Khadija, Aboulkassim Abdeljabar, Kririm Said   +2 more
doaj   +1 more source

Optimization of the Young's modulus of woven composite material made by Raphia vinifiera fiber/epoxy

International Journal for Simulation and Multidisciplinary Design Optimization, 2022
This work focuses on the optimal design of the woven fabrics made from Raphia vinifiera, fiber, and their contribution as reinforcing element in the epoxy matrix. The work is done alternately experimentally and theoretically.
Kendem Djoumessi Alfred, Sikame Tagne Rodrigue Nicodème, Stanislas Tido Tiwa, Ngapgue François, Njeugna Ebenezer   +4 more
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A novel hybrid analytical/iterative method to extract the single-diode model's parameters using Lambert's W-function

Energy Conversion and Management: X, 2023
The evaluation of photovoltaic device performance is based on the I-V characteristic curve. Unfortunately, the data sheets provided by the manufacturers only include data at standard test conditions, which requires the construction of a model capable of ...
Imade Choulli, Mustapha Elyaqouti, Dris Ben hmamou, El hanafi Arjdal, Driss Saadaoui, Souad Lidaighbi, Abdelfattah Elhammoudy, Sergey Obukhov, Ahmed Ibrahim   +8 more
doaj   +1 more source

Influence of Soap Factory Wastewater on the Physical and Mechanical Performance of Concrete

Diyala Journal of Engineering Sciences, 2022
The management of water resources is one of the major priorities in all countries of the world and even more so in developing countries such as Cameroon.
Zoyem Gouafo Mathurin, Talla Pierre Kisito, Gouafo Casimir, Ngapgue Francois, Médard Fogue   +4 more
doaj   +1 more source

Robust T-S Fuzzy Control Design for Variable-Speed Wind Energy Conversion Systems Using Linear Matrix Inequalities [PDF]

EPJ Web of Conferences
This paper proposes a robust state feedback control strategy for variable speed wind energy conversion systems (WECS) within the Takagi-Sugeno fuzzy (TSF) modeling framework.
Aboulkassim Abdeljabar, Kririm Said, Arjdal El hanafi, Boutssaid Rachid, Oualaid Rachid   +4 more
doaj   +1 more source

Factors Governing the Chemical Stability and NMR Parameters of Uracil Tautomers and Its 5-Halogen Derivatives

Molecules, 2020
We report on the density functional theory (DFT) modelling of structural, energetic and NMR parameters of uracil and its derivatives (5-halogenouracil (5XU), X = F, Cl, Br and I) in vacuum and in water using the polarizable continuum model (PCM) and the ...
Kacper Rzepiela, Aneta Buczek, Teobald Kupka, Małgorzata A. Broda   +3 more
doaj   +1 more source