Multilevel optimal threshold selection is important and comprehensively used in the area of image processing.Mostly, entropic information-based threshold selection techniques are used.These methods make use of the entropy of the distribution of the grey levels of an image.However, entropy functions largely depend on spatial distribution of the imag
Bilateral serous retinal detachment: An initial presentation of mixed phenotype acute leukemia in an adult
A 60-year-old female presented with acute onset painless loss of vision in both eyes.Clinical examination and ocular investigations revealed bilateral serous retinal detachments (SRDs) over the macula.There was no obvious intraocular or extraocular cause to the presentation.A blood count showed leukocytosis with the presence of blast cells on the S
Enhancement of low-voltage ride-through capability for virtual synchronous generators based on virtual impedance voltage control
Virtual Synchronous Generator (VSG)-based grid-forming converters (GFC) increasingly serve as interfaces between renewable energy resources and the power grids with high penetration.Although the emulation of the characteristics of Synchronous Generator (SG) enables GFC to provide virtual inertia and oscillation damping under the VSG control, it rem
Control of the Chamber in Extra-Thick Coal Seam Based on Fracture Characteristics of Coal Rock and Mass
As the development POTASSIUM GLUCONATE characteristics of cracks of the chamber are closely related to the bolt and cable anchoring parameters, the original rock stress of the surrounding rock, and fracture degree, this paper proposes the control method for chamber in extra-thick coal seam by the crack development characteristics.Based on the numer