The approach was to obtain measurements that permitted comparisons of temporal evolution of bottom stress, suspended particle size, and optical and acoustical properties in the bottom boundary layer. The instrumentation was mounted on bottom tripods and an I-beam frame. The "OASIS" tripod included a 9-wavelength optical attenuation and absorption meter (WetLabs ac-9, with automated dissolved me...

The storage and analysis of large amounts of time-varying spatial and aspatial data is becoming an important feature of many application domains. This has fuelled the need for spatio-temporal extensions to data models and their associated querying facilities. To date, much of this work has focused on the relational data model, with object data models receiving far less consideration. Where desc...

This paper investigates the relationship between energetic efficiency and the dynamical structure of a legged robot’s gait. We present an experimental data set collected from an untethered dynamic hexapod, EduBot [1] (a RHex-class [2] machine), operating in four distinct manually selected gaits. We study the robot’s single tripod stance dynamics of the robot which are identified by a purely joi...

We report for the first time the synthesis of nonplanar epitaxial tripod nanocrystals of II-VI compounds (ZnO, ZnS, ZnSe, ZnTe, CdS, CdSe, and CdTe) on muscovite mica substrate. With CdS as a case study, we conclude via Raman spectroscopy and electron microscopy studies that the tripods, which are found to be polytypic, followed a seeded growth mechanism. The epitaxy, manifested by the in-plane...

A 30−year−old man was referred for an en− doscopic removal of proximally migrated pancreatic stent. At our institution, the in− itial attempt by endoscopic removal using a snare, basket and balloon extraction failed. The distal tip of the stent was im− pacted at the side wall of the pancreatic duct. A rat−tooth forceps was also tried and was able to access the tip of the stent. Unfortunately, i...