In this paper, a rotary-focusing device for the antiplane shear wave is constructed to control and guide elastic wave energy transmission in elastic membranes.The designed device can cloak the antiplane shear waves outside the device and has a rotary-focusing effect on the shear waves energy Socks inside the device in a membrane.The multilayered is
Objectives: We sought to study the epidemiology of drowning among children reported at Sultan Qaboos University Hospital in Oman.Methods: We conducted a retrospective study of the patients who presented to the emergency department with a history of drowning over 10 years from January 2008 to December 2017.Patients with children aged one to 18 years
Стаття присвячена актуальним питанням виявлення особливостей управління розвитком аграрного підприємництва в умовах інституціональних трансформацій.Встановлено, що особливості управлін
Chemical strengthening via ion exchange, thermal tempering, and lamination are proven techniques for strengthening of oxide glasses.For blunt wraps each of these techniques, the strengthening mechanism is conventionally ascribed to the linear superposition of the compressive stress profile on the glass surface.However, in this work we use molecular