One of the fundamental tasks in maintenance port operations is periodic dredging. These dredging facilitate elimination sediments that coastal dynamics introduce. Dredging are increasingly restrictive and costly due to environmental requirements. Understanding condition seabed before after essential. In addition, determining how has behaved recent years important consider when planning future o...

Subaqueous dredging is a management activity undertaken globally to improve navigation, remove contaminants, mitigate flood risk and/or generate aggregate. Water Injection Dredging (WID) hydrodynamic technique involving the turbation and downstream displacement of fine sediments using vessel-mounted water jets. Despite being widely applied internationally, environmental ecological effects WID a...

The article discusses the issue of design solution for dredging slots production in Ob River section. An important challenge and straightening works is stability. experience researching considered, a brief review literature presented. necessity developing production, Field data were obtained analyzed course track on cripples. A Design proposed. ways further research stability are outlined.

This paper describes three spreadsheet exercises demonstrating the nature and frequency of type I errors using random number generation. The exercises are designed specifically to address issues related to testing multiple relations using correlation (Demonstration I), t tests varying in sample size (Demonstration II) and multiple comparisons using analysis of variance (Demonstration III). Thes...

-We measured scour of the redds of chinook salmon Oncorhynchus tshawytscha on dredge tailings and natural substrates in three tributaries of the Klamath River, California. We measured maximum scour with scour chains and net scour by surveying before and after high winter flows. Scour of chinook salmon redds located on dredge tailings exceeded scour of redds on natural substrates, although the d...