Module Cover Conductivity Enhancement

A clam shell module cover for printed circuit boards (PCB) has been designed for use in Boeing’s AECM cabinet. The cover utilizes materials with high thermal conductivity and cools the PCB by conducting the heat to a cold plate interface. Materials were compared and aluminum 6061-T6, aluminum 3003, and annealed pyrolytic graphite (APG) were chosen. A prototype was built and tested using aluminum 6061-T6 which was able to dissipate 57.7% of the projected wattage. Issues may include unforeseen complications in assembly along with components performing at lower levels than specified by manufacturers. The APG prototype was unable to be tested since it was not completed and shipped in time. Aluminum 3003 was found to be too scarce and expensive for the .75” plate needed for the prototype

Literatuur en stadscultuur tussen Middeleeuwen en Nieuwe Tijd

H. Pleij, De sneeuwpoppen van 1511. Literatuur en stadscultuur tussen Middeleeuwen en moderne tij

Phytoplankton community structure in the Tahsis River and Zeballos River plumes

Senior thesis written for Oceanography 445[author abstract] Rivers provide necessary nutrients for primary production in estuaries and along the coast. Salinity, light, temperature, and turbidity play a large role in shaping plume communities. By looking at the community structure throughout varying salinities in the Tahsis and Zeballos River plumes we can see the role salinity plays in shaping the plume community structure. Sampling throughout the plume allows for identification unique communities in th plumes changing salinity. Biomass at the mouth of both rivers was lower than at stations in higher salinities. This suggests that although nutrients are higher in the rivers, lower salinities are less conductive to phytoplankton growth.University of Washington School of Oceanograph

Le scriptorium des Hiéronymites à Gand

Dhanens E. Le scriptorium des Hiéronymites à Gand. In: Scriptorium, Tome 23 n°2, 1969. pp. 361-379