Results 11 to 20 of about 3,925,092 (294)

Augmentation of Heat Transfer for Spiral Coil Heat Exchanger in Solar Energy Systems By Using Nano fluids [PDF]

open access: yesEngineering and Technology Journal, 2015
This article presents an experimental study on pressure drop and enhancement of heat transfer of nanofluids flow in coil heat exchanger of solar energy system.
Khalid Faisal Sultan   +2 more
doaj   +1 more source

A Design of CGK-Based Granular Model Using Hierarchical Structure

open access: yesApplied Sciences, 2022
In this paper, we propose context-based GK clustering and design a CGK-based granular model and a hierarchical CGK-based granular model. Existing fuzzy clustering generates clusters using Euclidean distances.
Chan-Uk Yeom, Keun-Chang Kwak
doaj   +1 more source

CONGESTION MITIGATION IN DISTRIBUTION NETWORK BY INTEGRATED DISTRIBUTED GENERATIONS FOR IMPROVING VOLTAGE PROFILES AND MINIMIZING THE LOSSES

open access: yesJournal of Engineering and Sustainable Development, 2021
In electrical power systems, unexpected outage of transmission systems, sudden increase of loads, the exit of generators from service, and equipment failure, leads to a contingency occurring on one or several transmission lines. The loads must be within
Ihsan M. Jawad, Wafaa S. Majeed
doaj   +3 more sources

The effect of combined exercise (resistance-aerobic) valume on neurotrophic changes, neuropathic pain and some performance indicators in postmenopausal women with diabetic peripheral neuropathy [PDF]

open access: yesMajallah-i Zanān, Māmā̓ī va Nāzā̓ī-i Īrān, 2020
Introduction:Diabetic neuropathy is one of the most common and severe complications of diabetes. Very few studies have investigated the effects of resistance-aerobic training on diabetic-peripheral neuropathy.
Tayebeh Amiri Parsa   +3 more
doaj   +1 more source

Comparative PSII photochemistry of quinoa and maize under mild to severe drought stress

open access: yesPhotosynthetica, 2022
Quinoa has been identified as a climate-resilient crop that can overcome unfavorable conditions. This study explores the photochemical efficiency of quinoa compared to maize subjected to drought stress.
C. Malan, J.M. Berner
doaj   +1 more source

A Study of Irrigation Performance Index and Real Cost Value of Irrigation Operations and Maintenance in Surak Irrigation Area

open access: yesCivil and Environmental Science Journal, 2021
Irrigation Asset Management is required to maintain the value of irrigation asset function and condition. Surak Irrigation Area is located in Lawang Sub-District, Malang Regency.
Tri Budi Prayogo   +2 more
doaj   +1 more source

Multi-Objective Optimization of Double-Pipe Heat Exchangers from the Point of View of Efficiency and Economics [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The purpose of this study is to investigate the cost and efficiency of a double-pipe heat exchanger. Furthermore, by utilizing NSGA2, the operational expenses were minimized, and the efficiency was maximized.
Sayed Ehsan Slavi, Meisam Moory Shirbani
doaj   +1 more source

Performance Index of Incremental Granular Model with Information Granule of Linguistic Intervals and Its Application

open access: yesApplied Sciences, 2020
This paper addresses the performance index (PI) of an incremental granular model (IGM) with information granules of linguistic intervals. For this purpose, IGM is designed by combining a linear regression (LR) and an interval-based granular model (GM ...
Chan-Uk Yeom   +2 more
doaj   +1 more source

Optimizing Baffle Length for Mixed Convective Flow Within a Ventilated Square Cavity with Discrete Heat Sources Mounted at Side Walls [PDF]

open access: yesJournal of Heat and Mass Transfer Research
Mixed convection within a ventilated square cavity with a baffle at the bottom wall and heating elements at the side walls has been analyzed. The inlet opening has been set at the bottom of the left wall, while the exit opening is put at the bottom of ...
Saad Been Mosharof   +3 more
doaj   +1 more source

Adaptive Fuzzy Neural Network PID Algorithm for BLDCM Speed Control System

open access: yesMathematics, 2021
Because of its simple structure, high efficiency, low noise, and high reliability, the brushless direct current motor (BLDCM) has an irreplaceable role compared with other types of motors in many aspects. The traditional proportional integral derivative (
Hongqiao Yin   +4 more
doaj   +1 more source

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