Results 21 to 30 of about 2,052,628 (409)

Evaluation of wind-solar hybrid power generation system based on Monte Carlo method [PDF]

open access: yes, 2023
The application of wind-photovoltaic complementary power generation systems is becoming more and more widespread, but its intermittent and fluctuating characteristics may have a certain impact on the system's reliability.
Gheni, Hassan Muwafaq   +5 more
core   +2 more sources

A novel technique for stand-alone hydropower plant

open access: yesMehran University Research Journal of Engineering and Technology, 2023
Stand-alone hydropower plant is a major energy source in grid isolated zone because they do not require dams to be built. In a stand-alone hydropower plant Voltage and frequency, instability is caused by the load variation.
Saqib Ali, Ali Muneer
doaj   +1 more source

Performance Analysis of Stand-Alone Wind Energy Power Conversion System [PDF]

open access: yesE3S Web of Conferences
Earlier, the production of electricity was primarily reliant on non-renewable sources such as coal and diesel. However, these sources have limited availability and will eventually be depleted. Therefore, it is crucial to shift our focus towards renewable
Singar Mahendra Kumar   +3 more
doaj   +1 more source

COMP Report: CPQR technical quality control guidelines for use of positron emission tomography/computed tomography in radiation treatment planning

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein   +7 more
wiley   +1 more source

Adaptive control access of stand-alone power systems

open access: yesEnergy Procedia, 2012
AbstractThe recent liberalization of the electricity market in Romania and the growing interest for using alternative sources of energy are the premises favorable for this proposal. The main objective of the article is to stimulate interest of the consumers for the green energy considering the environmental and the financial impact of this one.
Otilia Elena Dragomir   +2 more
openaire   +2 more sources

Joint application of hybrid iterative reconstruction and adaptive filters on neck‐and‐shoulder CT imaging: A clinical evaluation

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To assess whether the joint application of hybrid iterative reconstruction (HIR) and an adaptive filter (AF) could reduce streak artifacts and improve image quality of neck‐and‐shoulder computed tomography (CT). Methods This study included 96 patients with suspicious neck lesions who underwent a routine nonenhanced scan on a 64‐slice ...
Wenfeng Jin   +6 more
wiley   +1 more source

Effective Power Management in a Stand-alone PV System

open access: yes2018 53rd International Universities Power Engineering Conference (UPEC), 2018
this paper deals with the energy management of the power flow in a stand-alone PV system, for the case of fast changing in weather conditions, and the case of rapid variation in the energy requirements of the customer. A super-capacitor is implemented as a storage unit to overcome the mismatch of energy between the load and the stand-alone PV system ...
Sehil, K, Darwish, M
openaire   +3 more sources

Investigation and Feasibility Evaluation of Using Nanogrid Technology Integrated Into Road Lighting System

open access: yesIEEE Access, 2020
Currently, light-emitting diode (LED) technologies and solar power production are in popular use. This paper proposes the concept of improving conventional road lighting systems using LED technologies and solar energy applications, known as a “ ...
Suntiti Yoomak, Atthapol Ngaopitakkul
doaj   +1 more source

Digital radiography image quality evaluation using various phantoms and software

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas   +4 more
wiley   +1 more source

Stand-alone hybrid energy systems for remote area power generation [PDF]

open access: goldEnergy Reports, 2019
Energy accessibility especially electrical energy is considered as one of the most appealing factors to achieve energy sustainability. The purpose of this study is to investigate energy sustainability using renewable energies for two high potential cities in the south-east of Iran until the year 2030.
Armin Razmjoo   +4 more
openalex   +4 more sources

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