University of Birjand

Effect of Laser Shock Peening on the Fatigue Life of Inconel 792 Superalloy After High‐Temperature Hot‐Corrosion Exposure in a Molten‐Salt Environment

ABSTRACT This study investigated the effect of laser shock peening (LSP) on the fatigue behavior of Inconel 792 nickel‐based superalloy after exposure to hot corrosion. Specimens were first subjected to corrosion in a molten salt bath containing 75 wt% Na 2 SO 4 + 15 wt% NaCl + 1...

A new power transformer risk modelling considering cumulative surge effects in insulation coordination studies

Accurate insulation risk assessment plays a critical role in ensuring the reliability of power transformers, given the significant technical complexities involved in their design. Back flashover failure (BF) caused by lightning overvoltages on incoming substation lines must be co...

Phytochemical-mediated design of magnetic MgFe2S4/CoBiO2I heterojunction for enhanced photocatalytic degradation of ciprofloxacin

This study addresses the environmental threat of ciprofloxacin (CIP) by presenting a nanocomposite synthesized via a plant-extract-mediated route, which eliminates the need for harsh chemical reducing agents. This approach minimizes the use of hazardous chemicals while maintainin...

A Laplace-transform based goodness-of-fit test for exponentiality under Type-II censoring

We propose a Laplace-transform-based goodness-of-fit test for the exponential distribution under Type-II censored data. The test is constructed using the conditional empirical Laplace transform of observed failures and compares it with the theoretical Laplace transform under expo...

Dual-polarized plasmonic leaky-wave antenna based on anisotropic graphene-modulated metasurface

Conventional isotropic graphene metasurfaces (MTSs) are limited to supporting surface plasmon polariton (SPP) waves exclusively in either transverse magnetic (TM) or transverse electric (TE) modes. To overcome this limitation, an anisotropic MTS composed of an anisotropic graphen...