Results 1 to 10 of about 5,889,940 (243)

Determining the best ship loading strategy during military deployments [PDF]

Journal of Defense Analytics and Logistics, 2022
Purpose – This study aims to examine ship loading strategies during large-scale military deployments. Ships are usually loaded to a stowage goal of about 65% of the ship's capacity.
Dave C. Longhorn, Shelby V. Baybordi, Joel T. Van Dyke, Austin W. Winter, Christopher L. Jakes   +4 more
doaj   +1 more source

Protection Coordination Method Using Symmetrical Components in Loop Distribution System

Energies, 2021
Power utilities worldwide commonly use the radial distribution system because of its advantages of being simple in structure and having relatively inexpensive installation costs.
Jung-Hun Lee, Woo-Hyun Kim, Hak-Ju Lee, Jun-Oh Kim, Woo-Kyu Chae   +4 more
doaj   +1 more source

Adaptive Protection Coordination Method Design of Remote Microgrid for Three-Phase Short Circuit Fault

Energies, 2021
Generally, the fault current supplied by inverter-based renewable energy sources (IBRES) and electrical storage systems (ESS) is about 1.2 to 2 times their rated current and much lower than synchronous generators because the former acts as a current ...
Wookyu Chae, Jung-Hun Lee, Woo-Hyun Kim, Sungwook Hwang, Jun-Oh Kim, Jae-Eon Kim   +5 more
doaj   +1 more source

Cooperative Use of IMD and GPT in a 3-Phase Ungrounded Distribution System Linked to a Transformerless Photovoltaic Power Generation Facility

Applied Sciences, 2023
Distributed generations, using solar photovoltaic (PV) generation systems, are generally connected to ungrounded distribution systems to ensure operational continuity and avoid electro-chemical corrosions.
Hyeon-Myeong Lee, Woo-Kyu Chae, Woo-Hyun Kim, Jae-Eon Kim   +3 more
doaj   +1 more source

A Deadbeat PI Controller With Modified Feedforward for PMSM Under Low Carrier Ratio

IEEE Access, 2021
When the permanent magnet synchronous motor (PMSM) operates at low carrier ratio, the decoupling capability and dynamic performance of the proportional-integral (PI) controller are limited by the digitization delay.
Zhijian Zhang, Long Jing, Xuezhi Wu, Wenzheng Xu, Jingdou Liu, Gege Lyu, Zilian Fan   +6 more
doaj   +1 more source

Nondestructive classification of soft rot disease in napa cabbage using hyperspectral imaging analysis

Scientific Reports, 2022
Identification of soft rot disease in napa cabbage, an essential ingredient of kimchi, is challenging at the industrial scale. Therefore, nondestructive imaging techniques are necessary.
Hyeyeon Song, So-Ra Yoon, Yun-Mi Dang, Ji-Su Yang, In Min Hwang, Ji-Hyoung Ha   +5 more
doaj   +1 more source

Backward Step-Up Control Strategy for Bidirectional LLC Resonant Converter

Energies, 2022
An LLC resonant converter has the advantages of simple structure and soft switching. It can enable bidirectional power transmission, but it is difficult to realize a normalized gain greater than one under backward mode (backward step-up mode).
Jingkai Niu, Xuezhi Wu, Yue Wang, Long Jing, Weige Zhang, Yibin Tong   +5 more
doaj   +1 more source

PARTON DISTRIBUTIONS [PDF]

International Journal of Modern Physics A, 2004
I discuss our current understanding of parton distributions. I begin with the underlying theoretical framework, and the way in which different data sets constrain different partons, highlighting recent developments. The methods of examining the uncertainties on the distributions and those physical quantities dependent on them is analyzed.
Dittmar, M., Forte, S., Glazov, A., Moch, S., Altarelli, G., Anderson, J., D. Ball, R., Beuf, G., Boonekamp, M., Burkhardt, Hans, Caola, F., Ciafaloni, M., Colferai, D., Cooper-Sarkar, A., de Roeck, A., del Debbio, L., Feltesse, J., Gelis, F., Grebenyuk, J., Guffanti, A., Halyo, V., I. Latorre, J., Lendermann, V., Li, G., Motyka, L., Petersen, T., Piccione, A., Radescu, V., Rogal, M., Rojo, J., Royon, C., P. Salam, G., Salek, D., M. Stasto, A., S. Thorne, R., Ubiali, M., A. M. Vermaseren, J., Vogt, A., Watt, G., D. White, C.   +39 more
openaire   +6 more sources

Energy Storage Configuration Optimization Strategy for Islanded Microgrid Interconnection Based on Energy Consumption Characteristics

Discrete Dynamics in Nature and Society, 2021
As a result of distributed energy development, the demand for energy storage grows more rapidly. The optimization of energy storage allocation is urgently needed.
Haoqing Wang, Chunyan Ma, Wanxing Sheng, Guanglin Sha, Caihong Zhao, Ning Liu, Qing Duan   +6 more
doaj   +1 more source

Archive-Based Multiobjective Evolutionary Algorithm for Large-Scale EV Charging Station Energy Management

Discrete Dynamics in Nature and Society, 2021
With the increase in renewable energy, improving the utilization rate of renewable energy is of great practical significance. The microgrid has been proved effective in addressing this issue.
Wanxing Sheng, Qing Duan, Haoqing Wang, Guanglin Sha, Chunyan Ma   +4 more
doaj   +1 more source