Research on a simulation-based ship production support system for middle sized shipbuilding companies

Extracting hysteresis from nonlinear measurement of wavefront-sensorless adaptive optics system

In many scientific and medical applications wavefront-sensorless adaptive optics (AO) systems are used to correct the wavefront aberration by optimizing a certain target parameter, which is nonlinear with respect to the control signal to the deformable mirror (DM). Hysteresis is the most common nonlinearity of DMs, which can be corrected if the...

Negative Offset Operation of Four-Transistor CMOS Image Pixels for Increased Well Capacity and Suppressed Dark Current

This letter presents an electrical method to reduce dark current as well as increase well capacity of four-transistor pixels in a CMOS image sensor, utilizing a small negative offset voltage to the gate of the transfer (TX) transistor particularly only when the TX transistor is off. As a result, using a commercial pixel in a 0.18 ?m CMOS process...

Multiplexing control of a multichannel piezoelectric deformable mirror

Addressing of massive arrays of piezoelectric actuators is usually achieved by using separate high-voltage output drivers, one per channel. This approach applied to high-order adaptive optics systems results in complex, expensive and vulnerable to handling abuse driver electronics, hardly scalable to 103-104 actuators. To reduce the number of...

Factors affecting corrosion and approaches for improving durability of ocean reinforced concrete structures

Improvement of estuarine marine clays for coastal reclamation using vacuum-applied consolidation method

Photobleaching kinetics of fluorescein in quantitative fluorescence microscopy

The computation of wave patterns and wave resistance induced by submerged bodies advancing with steady forward speed

Elasto-plastic consolidation under steady and cyclic loads

On the interaction between waves and currents

A note on the effect of a slot on force characteristics of supercavitating flat plates

Supercavitating flat plate with an oscillating flap at zero cavitation number

Measurements of the unsteady force on cavitating hydro-foils in a free jet

Unsteady, symmetrical, supercavitating flows past a thin wedge in a jet