Although detailed analytical models for droop-controlled microgrids are available, they are computationally complex and do not consider real-time variations in microgrid parameters and operating conditions. This paper proposes Kurtosis-Estimation of Signal Parameters via Rotational Invariance Technique (ESPRIT) to identify the dominant modes in droop-controlled inverter-based microgrids (IBMGs) using local real-time measurements. In the proposed approach, a short-duration small disturbance is applied to the selected DG's active power droop gain, and then, the system's dominant modes are estimated from its local measurements.
View Article and Find Full Text PDFThe vision transformer (ViT) architecture, with its attention mechanism based on multi-head attention layers, has been widely adopted in various computer-aided diagnosis tasks due to its effectiveness in processing medical image information. ViTs are notably recognized for their complex architecture, which requires high-performance GPUs or CPUs for efficient model training and deployment in real-world medical diagnostic devices. This renders them more intricate than convolutional neural networks (CNNs).
View Article and Find Full Text PDFIn this study, we report the synthesis of iron oxide nanoparticles (FeONPs) using micro-emulsion-hydrothermal method. By adjusting the synthesis temperature, we successfully produced FeO nanorods and nanospheres. In addition, the 2-octanol, and the surfactant cetyltrimethylammonium bromide served as a solvent in the synthesis process.
View Article and Find Full Text PDFBackground: Pain and inflammation are closely associated with rheumatoid arthritis (RA), which affects the bones and joints.
Aim: While there are a number of therapeutic options for arthritis, their side effects restrict their use and encourage the search for alternative, natural remedies.
Methods: In male rats, we examined the anti-inflammatory and anti-arthritic properties of venom (NHV).
Purpose: To determine the outcomes of sickle cell retinopathy (SCR) patients who experienced at least one episode of being lost to follow-up (LTFU) compared to those who attended all appointments.
Methods: Adult SCR patients who visited Wills Eye Hospital Retina service (January 2012-December 2021) with >2 visits were reviewed for LTFU events, defined as failure to return for a follow-up appointment within 6 months of the scheduled date.
Results: One hundred and eighty-one eyes of 94 patients were included.