Results 1 to 10 of about 3,690,024 (303)

Position - Velocity Control for Two PMDC Motors Connected by a Cross-Coupling Technique with Butterflies Optimization Algorithm

open access: yesJournal of Techniques, 2021
In this paper, two contributions are presented. the first is to design two cascade controllers to control the velocity and position for two Permanent Magnet DC motors (PMDC) working together at the same time for use in many applications such as CNC ...
Kareem Ghazi Abdulhussein   +2 more
doaj   +1 more source

Effect of Local Floor Heating System on Occupants’ Thermal Comfort and Energy Consumption Using Computational Fluid Dynamics (CFD)

open access: yesFluids, 2023
In this article, the influence of splitting a local underfloor air distribution system (UFAD) on indoor thermal comfort for three occupants was studied numerically.
Hassan J. Dakkama   +4 more
doaj   +1 more source

Thermal Performance Enhancement of the Mixed Convection between two Parallel Plates by using Triangular Ribs

open access: yesInternational Journal of Applied Mechanics and Engineering, 2021
This paper aims to investigate the mixed convection between two parallel plates of a vertical channel, in the presence of a triangular rib. The non-stationary Navier-Stokes equations were solved numerically in a two-dimensional formulation for the low ...
K.A. Jehhef, F.A. Badawy, A.A. Hussein
doaj   +1 more source

Design and Implementation of Multifunction Relay Based on Microcontroller

open access: yesJournal of Techniques, 2021
The power systems are exposed to many abnormal conditions, so an advanced protection system must be provided to stand up to these challenges. Protection devices evolved continuously with the development of power systems.
Ali Abdulsattar Hameed   +2 more
doaj   +1 more source

Articulation of Islam: President Joko Widodo’s Foreign Policy 2014-2019

open access: yesJurnal Hubungan Internasional, 2022
The paper discusses how President Joko Widodo articulated Islamic identity in his Foreign Policy during his first period of Presidency, 2014-2019. Through Constructivism approach and the concept of identity operated eclectically, the study finds that the
Achmad Ubaedillah   +2 more
doaj   +1 more source

The Republic of Korea and the Republic of Türkiye: A Comparative Analysis of the “Brotherhood in Spirit”

open access: yesРегионология, 2023
Introduction. The choice of Korea and Türkiye to analyze the behavior model within the framework of the changing international order is primarily due to such facts as maintaining close ties with Washington since their formation and their reference to ...
Vladimir A. Avatkov, Yana V. Agafonova
doaj   +1 more source

International Health Cooperation in the Post-Pandemic Era: Possibilities for and Limitations of Middle Powers in International Cooperation

open access: yesSocial Sciences, 2022
The COVID-19 pandemic has left international cooperation and liberalistic values in crisis. As liberalism’s downfall is widely discussed, international collaborations like the European Union are criticised for their inability to operate adequately during
Yongmin Kim, Youngdeuk Park
doaj   +1 more source

Hydration Thermodynamics and Hydrodynamic (Stokes) Radius of the Lanthanide Ions

open access: yesIraqi Journal of Physics, 2020
Many biochemical and physiological properties depend on the size of ions and the thermodynamic quantities of ion hydration. The diffusion coefficient (D) of lanthanide (III) ions (Ln+3) in solution assumed (1.558-1.618 ×10−9 m2 s−1) by Einstein ...
muhammed J. Kadhim, Maher Ibraheem Gamaj
doaj   +1 more source

Emergency restoration method of integrated energy system in coordination with upper and lower control

open access: yesEnergy Reports, 2022
The frequent occurrence of extreme meteorological disasters in urban areas during winter poses great impacts on the secure operation of regional energy infrastructures, leading to cascading failures and load losses in integrated energy systems (IESs). To
Hongbin Wang   +5 more
doaj   +1 more source

Strategic Autonomy for ROK: Intellectual Pipe Dream or Political Reality?

open access: yesМеждународная аналитика, 2021
The discourse of “strategic autonomy,” which has gained popularity in the Republic of Korea in recent years, has yet to undergo serious theoretical revision. This article attempts to fill the gap by examining the South Korean discourse of “middle powers,”
K. V. Asmolov, A. V. Soloviev
doaj   +1 more source

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