THE SEAGOING HOPPER DREDGE

Size and settling velocities of cohesive flocs and suspended sediment aggregates in a trailing suction hopper dredge plume

A field experiment was conducted to quantify settling velocities, aggregate states, and flocculation within a hopper dredge plume. Particular interest was in determining the abundance of dense, bed aggregates suspended from the consolidated bed during dredging. A suspended sediment plume from the hopper dredge Essayons was sampled for a period of 90 min after dredging. Settling velocities and s...

Hopper Lectures-Jkerr

The struggle for gender equality ranks as one of our century's defining movements. This struggle has won women in Canada and around the developed world the right to vote, to own property, to earn an education, and to work outside the home for wages. It has also won them the right to physical safety within their own homes. Where men once had the legal right to beat their wives with a stick no th...

Microfluidic Bead Suspension Hopper

Many high-throughput analytical platforms, from next-generation DNA sequencing to drug discovery, rely on beads as carriers of molecular diversity. Microfluidic systems are ideally suited to handle and analyze such bead libraries with high precision and at minute volume scales; however, the challenge of introducing bead suspensions into devices before they sediment usually confounds microfluidi...

Hopper Bands: Locust Aggregation

Locust swarms cause famine and hunger in parts of Sub-Saharan Africa as they travel across croplands and eat vegetation. Current models start with biological properties of locusts and analyze the macroscopic behavior of the system. These models exhibit the desired migratory behavior, but do so with too many parameters. To account for this, a new model, the Alignment and Intermittent Motion (AIM...

Analysis of the Synchronized Hopper System