The Pacific coast of the Tohoku region of Japan experiences repeated tsunamis, with the most recent events having occurred in 1896, 1933, 1960, and 2011. These events have caused large loss of life and damage throughout the coastal region. There is uncertainty about the degree to which seawalls reduce deaths and building damage during tsunamis in Japan. On the one hand they provide physical pro...

Seawalls are sheltering structures used for protecting the coastal regions against wave induced forces. Because of random nature of the wave behavior, application of physical models for the study of wave-structure interaction can be quite efficient. In the present research, physical models of thin flexible walls were constructed and tested in a wave flume subject to generated random waves. The ...

While today’s virtual datacenters have hypervisor based mechanisms to partition compute resources between the tenants co-located on an end host, they provide little control over how tenants share the network. ˆis opens cloud applications to interference from other tenants, resulting in unpredictable performance and exposure to denial of service attacks. ˆis paper explores the design space for a...

This study utilized a two-dimensional numerical viscous wave tank to simulate the run-up and run-down processes of non-breaking solitary waves on steep seawall. The research aimed investigate transformation between potential energy kinetic energy, evolution mechanisms flow fields, correlation dynamic pressure gradient reverse near sloping bed. model results were consistent with laboratory measu...

In Japan, Typhoon No. 15 (Faxai) hit the Kanto region on September 5, 2019, causing massive flooding damage due to collapse of seawalls (Suzuki et al., 2020). Fukuura district Yokohama City, parapet seawall collapsed and large overtopping waves inundated an area 0.75 km inland from seawall, resulting in a flooded 0.8 km2. Since typhoon season lasts until November, there was possibility that typ...

It is widely recognised that microhabitats are important for a variety of marine organisms, yet this knowledge has rarely been applied in the construction of engineered structures as a means of enhancing biodiversity or populations of species at risk. Here we examined the influence of microhabitats on the distribution and survival of the exploited limpet Patella candei on natural shores before ...

On May 23 rd , 2022, an extreme coastal event occurred around the northern coast of Java. This had caused collapsed several seawall segments Tanjung Emas Port, Semarang. Combined with wave overtopping, it led to severe flooding and economic damages port operation. Responding event, this research aimed characterize hydrodynamic condition proposed a design. The was done through field observation,...