Hiroshima City University

Mitigating the impacts of oligotrophication and thermal stress on Pacific oyster Magallana gigas aquaculture through solar-powered artificial upwelling

Abstract Recent oligotrophication and rising water temperatures in the Seto Inland Sea of Japan have led to a decline in oyster production in Hiroshima Prefecture. This study developed and evaluated the “Seawater Pump-up Apparatus for Localized Oceanic Warming-mitigation” (SPALOW...

H‐Likelihood Approach on the Joint Frailty Model for Clustered Bivariate Survival Data

ABSTRACT Recently, clustered bivariate survival data have been extensively studied using different modeling approaches, such as frailty models and copula models. These data can take several forms, including bivariate censored data, semicompeting risks data, and competing risks da...

Sand Influx Effect on Barchan Steady-state Profile

In this study, based on the crest line model, a differential equation-based mathematical approach to dune dynamics, we investigate the effect of non-contact interactions between barchans through sand flow on their morphodynamics, which is a largely unexplored topic. Numerical cal...