The modular multilevel converters (MMCs) are popularly used in high-voltage direct current (HVDC) transmission systems.However, Gas Range for the direct modulation based MMC, its complex internal dynamics and the interaction with the grid impedance would induce the frequency coupling effect, which may lead to instability issues, especially in the c
Aim.To demonstrate a clinical case of acute gastric volvulus and to give a brief literary review of the disease.Materials and methods.A 12-year-old child Divertor Motor who has applied for acute abdominal pain, repeated vomiting, with typical signs of obstruction of the upper gastrointestinal tract.Results.After the clinical and instrumental examin
Single lung transplantation (SLTx) has been used to Hat Racks treat end-stage lung disease.A common complication after SLTx is hyperinflation of the native emphysematous lung (NLH).Previous attempts to reduce the NLH have been tried using surgery, endoscopic valves, etc.with variable outcomes.Lung volume reduction coils can be used for treating hyp
Hiroshi Toshida, Kozo Takahashi, Kazushige Sado, Atsushi Kanai, Akira MurakamiDepartment of Ophthalmology, Juntendo University School of Medicine, Tokyo, JapanAbstract: Since people who wear contact lenses (CL) often continue using CL even when they develop presbyopia, there are growing expectations for bifocal CL.To understand actual state and pro
In the absence of pharmaceutical interventions, social distancing and lockdown have been key options for controlling new or reemerging respiratory infectious disease outbreaks.The timely implementation of these interventions is vital for effectively controlling and safeguarding the economy.Motivated by the COVID-19 pandemic, we evaluated whether, w