Article 1: Full Text (PDF) Free
Addressing the Factors Causing Inefficiency of Fossil Fuel Power Generation in Saudi Arabia
Mohammad Althaqafi*, Qingping Yang
College of Engineering, Design and Physical Science, Brunel University London, UB8 3PH, UK
Journal of Energy Challenges and Mechanics, volume 3, pages 100-108.

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Monitoring of the Ecological Security in the North-Western Region of the Republic of Sakha, Russian Federation
Albina A. Goldman, Elena V. Sleptsova, Raissa P. Ivanova
Mirny Polytechnic Institute (branch) of Ammosov North-Eastern Federal University (NEFU), Mirny, Tikhonova street 5, build.1, Russian Federation
Journal of Energy Challenges and Mechanics, volume 3, pages 109-115.

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Optimized Reactive Power Management Across Different Voltage Levels on the Example of Medium-Voltage Grids
Steffen Garske1*, Marcel Sarstedt1, Lutz Hofmann1, Jorge Velasquez2, Sebastian Lehnhoff2
1Institute of Electric Power Systems, Electric Power Engineering Section,
Leibniz Universität Hannover, 30167 Hanover, Germany
2OFFIS – Institute for Information Technology, 26121 Oldenburg, Germany
Journal of Energy Challenges and Mechanics, volume 3, pages 116-125.

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Performance analysis of a hybrid storage system for electric vehicles
Carl Michael Odulio*, Rovinna Janel F. Cruzate, Martin S. Reyes III, Leo Allen S. Tayo
Electrical and Electronics Engineering Institute, University of the Philippines Diliman, QC 1101, Philippines
Journal of Energy Challenges and Mechanics, volume 3, pages 126-135.

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Energy Harvesting Circuit for Radio Frequency Application
Haruichi Kanaya
Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
Journal of Energy Challenges and Mechanics, volume 3, pages 136-145.

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Study on the Gear Ratio for a Tidal Current Power Generation System using the Constant Turbine Output Control Method
Kentaro Tsuji1*, Kazuhisa Naoi1, Mitsuhiro Shiono1
1 Department of Electrical Engineering, College of Science and Technology, Nihon University, Chiyoda-ku, Tokyo 101-8308, Japan
Journal of Energy Challenges and Mechanics, volume 3, pages 146-156.

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The National Drought Policy in Mexico
Felipe I. Arreguín Cortés1*, Mario López Pérez1, David Korenfeld Federman2,
David Ortega-Gaucin1
1Mexican Institute of Water Technology, Paseo Cuauhnáhuac 8532, Col. Progreso, 62550, Jiutepec, Morelos, México
2Independent consultor
Journal of Energy Challenges and Mechanics, volume 3, pages 157-166.

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