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Open Access Publications from the University of California

Scholarly Works (3 results)

  • Article
  • Peer Reviewed
IDAV Publications (2003)
The programmability and texture support of consumer graphics accelerators have drawn a lot of attention from visualization researchers, resultingin some very important advances in interactive volume data visualization. For many applications, scientists can now perform routine data visualization and analysis tasks on their desktop PC with a consumer graphics card that was designed mainly for playing video games. This paper presents several representative hardware-accelerated algorithms that have been introduced recently to address the problems of classification, illumination, non-photorealistic rendering, decoding, and image compositing in volume data visualization.
    Cover page: Recent Advances in Hardware-accelerated volume rendering
    • Article
    Journal of Citrus Pathology, Volume 1, Issue 1 (2014)

    Citrus Greening Disease or Huanglongbing (HLB) is one of the most serious citrus diseases in the world. There are no effective methods to cure this disease, and major countermeasures include detection of initial detection and cutting down  infected trees. Thus, HLB delivers serious impact to the agricultural economy.

    It is well known that an HLB infected tree shows specific symptoms like micronutrient deficiency. We revealed that iron (Fe) content of citrus leaves showing symptoms for HLB were decreased compared to non-infected leaves (Pustika et al., 2008, Masaoka et al., 2011), and the activity of Fe(III) chelate reductase in roost was reduced for HLB-infected citrus trees.

    In this research we tried to evaluate the effect of Fe application for recovery of infected trees. Fe additives were applied to HLB-infected citrus trees and the density of the HLB bacterium was evaluated using PCR. In some infected trees, the HLB bacterium became undetectable after treatment. This result suggests that Fe nutrient affects the ecosystems of the HLB bacterium.

      Cover page: Relations between behavior of HLB and Iron application to Citrus treesCreative Commons 'BY' version 4.0 license
      • Article
      • Peer Reviewed
      IDAV Publications (2001)
      To seek a low-cost, extensible solution for the large-scale data visualization problem, a visual computing system is designed as a result of a collaboration between industry and government research laboratories in Japan, also with participation by researchers in U.S. This scalable system is a commodity PC cluster equipped with the VolumePro 500 volume graphics cards and a specially designed image compositing hardware. Our performance study shows such a system is capable of interactive rendering 5123 and 10243 volume data and highly scalable. In particular, with such a system, simulation and visualization can be performed concurrently which allows scientists to monitor and tune their simulations on the fly. In this paper, both the system and hardware designs are presented.
        Cover page: Next Generation Supercomputing using PC Clusters with Volume Graphics Hardware Devices
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