A simple, inexpensive apparatus for generating aerosol particles with uniform size can be built from commonly available inkjet printer technology. The apparatus is capable of producing a continuous stream of liquid droplets at frequencies up to order 10 Hz, or it can produce single droplets on demand. At low frequencies (. 10 Hz) where coalescence is not important, droplets have a radius of app...

Master of Electrical Engineering Program Cornell University Design Project Report Project Title: Inexpensive Wireless Telemetry for Animal Tracking Author: Christopher Yeou-Hwa Chau Abstract: This project explored the feasibility of creating a cost-effective transmitterreceiver pair to replace commercially available 150 MHz devices used in animal telemetry. Distance measurements of test circuit...

Trocar site complications continue to plague laparoscopic surgeons. Described in this report is an inexpensive simple technique to close all layers of the trocar site defect.

Digital mapping techniques are used increasingly in hydrology. One of the constraints on the application of those techniques is the digitizing process, which can be costly and time consuming. This paper describes the background and development of a low cost, easy-to-use system for digitizing maps, based on the use of a video camera as a scanner, and goes on to discuss the application of this sy...

For a connected digits speech recognition task, we have compared the performance of two inexpensive electret microphones with that of a single high quality PZM microphone. Recognition error rates were measured both with and without compensation techniques, where both single-channel and two-channel approaches were used. In all cases the task was recognition at a significant distance (2–6 feet) f...

Parallel disks can improve I O performance in a man ner analogous to the use of parallel processors to im prove computation times However due to their data storage function reliability issues become exceedingly important Currently proposed schemes use shadow ing or parity to achieve reliability in parallel disks In this paper we introduce the idea of using the Informa tion Dispersal Algorithm I...

These experiments determined the magnitude of loads that rhinoceros beetles (Scarabaeidae) can carry and also the metabolic energy required for carrying loads. I hypothesized that, like many other animals, these beetles would have metabolic rates in direct proportion to the total load (body mass plus added mass). Eight beetles (Xylorctes thestalus) walked at 1 cm s-1 on a motorized treadmill en...