James R. Tulip

  • Citations Per Year
Learn More
To examine the function of resistance-sized arteries in hypertension under in vitro conditions that approximate in vivo conditions as much as possible, we mounted segments of second-order mesenteric resistance arteries from spontaneously hypertensive rats (SHR) and Wistar-Kyoto normotensive control rats aged 12 to 13 weeks in a perfusion myograph and(More)
Two in vitro techniques, the pressurized flow chamber and the wire myograph, commonly employed to study the structure and function of small arteries, were compared. Mesenteric arteries from Wistar-Kyoto (WKY) rats were studied at a transmural pressure (44 +/- 1 mmHg) at which they elicit optimum contraction in each system. Differences in morphological(More)
The Grid-Based Path Planning Competition has just completed its third iteration. The entries used in the competition have improved significantly during this time, changing the view of the state of the art of gridbased pathfinding. Furthermore, the entries from the competition have been made publicly available, improving the ability of researchers to compare(More)
Game engines are specialized middleware which facilitate rapid game development. Until now they have been highly optimized to extract maximum performance from single processor hardware. In the last couple of years improvements in single processor hardware have approached physical limits and performance gains have slowed to become incremental. As a(More)
Real Time Strategy (RTS) games are interesting from an Artificial Intelligence (AI) point of view because they involve a huge range of decision making from local tactical decisions to broad strategic considerations, all of which occur on a densely populated and fiercely contested map. However, most RTS AI used in commercial RTS games are predictable and can(More)
Cache-based path-finding algorithms lose much of their advantage in dynamic environments where fast online search algorithms are required. Jump point search (JPS) is such a fast algorithm. It works by eliminating most map nodes from evaluation during path expansion. Boundary lookup jump point search (BL-JPS) is a modification that improves the speed of JPS.(More)
  • 1