James Hoffman is a software engineer and inventor who has worked in scientific visualization and was instrumental in producing the first visualization of Costa's minimal surface. His scientific visualizations have been published in Scientific American and Nature, among other journals. Most recently, Hoffman has been involved in the solar start-up company Sun Synchrony, which is developing his solar inventions.[1]

Scientific visualizations

James Hoffman has created software for scientific visualization, particularly of surface geometries studied in differential geometry. While a graduate student at the University of Massachusetts Amherst, James was enlisted by mathematician David Hoffman to help prove an important result in minimal surface geometry, discovering the first new examples of complete embedded minimal surfaces in more than one hundred years. The first example, the Costa surface, was described in 1983 by Brazilian graduate student Celso Costa as an equation, but a proof that it was embedded (lacked self-intersections) was provided by David Hoffman and William Meeks, who used computer visualizations created by James to see that the surface was embedded and dissect it to prove that it was. This finding, followed by the discovery of scores of other surfaces and families of surfaces illustrated by Hoffman's computer graphics, overturned a century-old conjecture that the only examples of such minimal surfaces where the plane, catenoid, and helicoid.[2]

Hoffman's work has been featured in articles in Science News, Scientific American, and Nature, and he has co-authored papers in Science and Macromolecules.[3] He is credited with involvement in the discovery of new three-dimensional morphologies for modeling block co-polymers,[4] such as the Split-P surface (a hybrid of the P and G triply periodic surfaces),[5] and derived the first level set formulation for the Lidinoid surface.[6]

Inventions

Hoffman is the co-author of a patent for an internal combustion engine with increased thermal efficiency.[7] He is also the inventor of a solar panel using concentrating photovoltaics (CPV) for increased efficiency.[8] He is President of the California solar company, Sun Synchrony, which is developing the prototype for Hoffman's CPV design, the ArcSol panel.[9] Hoffman has also written several technical papers about the technology, including, 'Solar Panel Performance Survey', and 'Area Efficiency, Light Capture Efficiency, and their Maximization in Solar Tracking Arrays'.[10]

References

  1. ↑ "Sun Synchrony: About". Retrieved 2010-07-24.
  2. ↑ "Article on scientific visualization". Archived from the original on 2012-07-28. Retrieved 2010-07-25.
  3. ↑ Hoffman: Californiaphoton Author
  4. ↑ Computer graphics tools for the study of minimal surfaces
  5. ↑ "The Split P Surface". Archived from the original on 2007-09-27. Retrieved 2010-07-25.
  6. ↑ "The Lidinoid Surface". Archived from the original on 2007-09-27. Retrieved 2010-07-25.
  7. ↑ US Patent & Trademark Office, Patent Full Text and Image Database - patent 4,584,972
  8. ↑ World Intellectual Property Organization, Patent Full Text and Image Database - international patent application PCT/US2009/046606
  9. ↑ Sun Synchrony: About
  10. ↑ Sun Synchrony: White Papers

Publications

Websites designed by Hoffman

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