Grid-forming inverters are sensitive to large grid disturbances that may engender overcurrent due their voltage source behavior. To overcome this critical issue and ensure the safety of system, current limitation techniques have be implemented. In context, variable virtual impedance (VI) appears as a suitable solution for problem. The design basically rests on static considerations, while, its ...

This study addresses the question of how to evaluate growth stage food crops, for instance, paddy (Oryza sativa) and maize (Zea mays), from two different sensors in selected developed areas Papua Province Indonesia. Level-1 Ground Range Detected (L1 GRD) images Sentinel-1 Synthetic Aperture Radar (SAR) data were used investigate crops. An NGB camera was then obtain Green Normalized Difference V...

Canopy spectral reflectance can indicate both crop nutrient and canopy structural information. Differences in structure affect reflectance. However, a non-imaging spectrometer cannot distinguish such differences while monitoring nutrients, because the results are likely to be influenced by structure. In addition, nitrogen application rate is one of main factors influencing crops. Strong correla...

Vegetation indices have been used extensively to estimate the vegetation density from satellite and airborne images for many years. In this paper we first focus on one of the most popular vegetation indices, the normalized difference vegetation index (NDVI ) [1] and introduce a statistical framework to analyze it. We propose a solution to the saturation problem of this index based on our statis...

Respiratory viral infections (RVI) are a frequent cause of morbidity and mortality in hematopoietic stem cell transplant (HSCT) patients. We examined clinical characteristics and respiratory viral detection in asymptomatic pediatric HSCT pre-transplant patients and symptomatic post-transplant patients. Coxsackie/echovirus (most common virus detected pre and post-transplant), rhinovirus, and cor...

Objectives: Right ventricular infraction has prognostic significance in the setting of acute “inferior wall myocardial infarction (IWMI)”, this research is intended to determine frequency “right (RVI)” patients with IWMI. Methodology: This descriptive cross-sectional study took place at a tertiary care hospital Peshawar, Pakistan. The included consecutive who were diagnosed presence RVI was det...