Now showing items 37-56 of 473

    • Camera based photoplethysmogram estimation 

      Kumar, Mayank; Veeraraghavan, Ashok; Sabharwal, Ashutosh (2018-04-10)
      A system for estimating a photoplethysmogram waveform of a target includes an image processor configured to obtain images of the target and a waveform analyzer. The waveform analyzer is configured to determine a weight of ...
    • Capo with attachment mechanism and fretting action in separate offset planes 

      Blacker, Daniel Curtis; Carroll, Matthew; Jaggers, John Vinson (2017-10-10)
      Embodiments of a capo and fretting component are described. In certain embodiments, the fretting component is threaded onto a crossbar configured to overlie the instrument strings when in use and to pivot with respect to ...
    • Carbon fibers formed from single-wall carbon nanotubes 

      Smalley, Richard E.; Colbert, Daniel T.; Dai, Hongjie; Liu, Jie; Rinzler, Andrew G.; Hafner, Jason H.; Smith, Kenneth A.; Guo, Ting; Nikolaev, Pavel; Thess, Andreas (2004-01-27)
      A method for purifying a mixture comprising single-wall carbon nanotubes and amorphous carbon contaminate is disclosed. The method includes the steps of heating the mixture under oxidizing conditions sufficient to remove ...
    • Carbon nanotube based imaging agents 

      Wilson, Lon J.; Kissell, Kyle Ryan; Hartman, Keith Bennett (2015-03-24)
      Compositions and methods related to carbon nanotubes are provided. More particularly, imaging agents comprising carbon nanotubes internally loaded with a contrast agent and associated methods are provided. One example of ...
    • Carbon nanotube coating composition 

      Kibe, Ryuta; Yamamoto, Takayuki; Maillaud, Laurent; Headrick, Robert James; Mirri, Francesca; Pasquali, Matteo (2018-07-31)
      The present invention relates to a composition comprising carbon nanotubes and a surfactant for forming a thin film on a substrate, and a method of manufacturing a thin film on a substrate by using an aqueous dispersion ...
    • Carbon nanotube diameter selection by pretreatment of metal catalysts on surfaces 

      Hauge, Robert H.; Xu, Ya-Qiong; Shan, Hongwei; Nicholas, Nolan Walker; Kim, Myung Jong; Schmidt, Howard K.; Kittrell, Carter W. (2012-02-28)
      A new and useful nanotube growth substrate conditioning processes is herein disclosed that allows the growth of vertical arrays of carbon nanotubes where the average diameter of the nanotubes can be selected and/or controlled ...
    • Carbon nanotube substrates and catalyzed hot stamp for polishing and patterning the substrates 

      Wang, Yuhuang; Hauge, Robert H.; Schmidt, Howard K.; Kim, Myung Jong; Kittrell, Carter W. (2009-09-08)
      The present invention is generally directed to catalyzed hot stamp methods for polishing and/or patterning carbon nanotube-containing substrates. In some embodiments, the substrate, as a carbon nanotube fiber end, is brought ...
    • Carbon nanotubes and their derivatives as matrix elements for the matrix-assisted laser desorption mass spectrometry of biomolecules and sequencing using associated fragmentation 

      Sivarajan, Ramesh; Hauge, Robert H.; Marriott, Terry (2008-08-19)
      The present invention is directed toward novel matrix elements, generally comprising functionalized carbon nanotubes, for matrix-assisted laser desorption ionization (MALDI)-mass spectroscopy (MS), methods of making such ...
    • Carbon nanotubes derivatized with diazonium species 

      Tour, James M.; Bahr, Jeffrey L.; Yang, Jiping (2010-04-06)
      The invention incorporates new processes for the chemical modification of carbon nanotubes. Such processes involve the derivatization of multi- and single-wall carbon nanotubes, including small diameter (ca. 0.7 nm) ...
    • Catalytic growth of single- and double-wall carbon nanotubes from metal particles 

      Smalley, Richard E.; Hafner, Jason H.; Colbert, Daniel T.; Smith, Kenneth A. (2006-10-24)
      Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled nanotubes. Under certain conditions, ...
    • Catalytic growth of single-and double-wall carbon nanotubes from metal particles 

      Smalley, Richard E.; Hafner, Jason H.; Colbert, Daniel T.; Smith, Kenneth A. (2007-04-10)
      The present invention concerns a method for growing carbon nanotubes using a catalyst system that preferentially promotes the growth of single- and double-wall carbon nanotubes, rather than larger multi-walled carbon ...
    • Catalytic growth of single-wall carbon nanotubes from metal particles 

      Smalley, Richard E.; Hafner, Jason H.; Colbert, Daniel T.; Smith, Kenneth A. (2004-02-17)
      Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled nanotubes. Under certain conditions, ...
    • Charge coupled device based on atomically layered van der waals solid state film for opto-electronic memory and image capture 

      Lei, Sidong; Ge, Liehui; George, Antony; Li, Bo; Vajtai, Robert; Ajayan, Pulickel M. (2016-08-30)
      An opto-electronic sensor may provide one or more layers of atomically layered photo-sensitive materials. The sensor may include a gate electrode layer, a dielectric layer in contact with the gate electrode layer, and a ...
    • Charge-assembled capsules for phototherapy 

      Yu, Jie; Wong, Michael S.; Anvari, Bahman; Yaseen, Mohammad Abbas (2012-12-25)
      Novel phototherapeutic methods and compositions are described herein. Nanoparticle-assembled microcapsules as a new type of delivery vehicle for photosensitive compounds may be synthesized through a two-step assembly ...
    • Chemical control over ceramic porosity using carboxylate-alumoxanes 

      Barron, Andrew R.; Bailey, Diane Amy; Wiesner, Mark Robert; Jones, Christopher Daniel; Callender, Rhonda Lynn (2005-08-30)
      This invention relates generally to a method for controlling the pore size, pore size distribution and porosity of aluminum-oxide based ceramics through the choice of substituents on carboxylate-alumoxanes and aluminum-oxide ...
    • Chemical derivatization of single-wall carbon nanotubes to facilitate solvation thereof- and use of derivatized nanotubes 

      Margrave, John L.; Mickelson, Edward T.; Hauge, Robert H.; Boul, Peter; Huffman, Chad; Liu, Jie; Smalley, Richard E.; Smith, Kenneth A.; Colbert, Daniel T. (2004-12-28)
      This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention ...
    • Chemical derivatization of single-wall carbon nanotubes to facilitate solvation thereof; and use of derivatized nanotubes to form catalyst-containing seed materials for use in making carbon fibers 

      Margrave, John L.; Mickelson, Edward T.; Hauge, Robert H.; Boul, Peter; Huffman, Chad; Liu, Jie; Smalley, Richard E.; Smith, Kenneth A.; Colbert, Daniel T. (2003-11-11)
      This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention ...
    • Chemically modifying single wall carbon nanotubes to facilitate dispersal in solvents 

      Margrave, John L.; Mickelson, Edward T.; Hauge, Robert H.; Boul, Peter; Huffman, Chad; Liu, Jie; Smalley, Richard E.; Smith, Kenneth A.; Colbert, Daniel T. (2005-04-05)
      This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention ...
    • Closed-loop compensation for kinematic error in harmonic driver for precision control applications 

      Ghorbel, Fathi Hassan; Ghandi, Prasanna S. (2002-10-01)
      Nonlinear control algorithms to compensate for kinematic error in harmonic drives provide a solid basis to improve their performance of harmonic drives in precision positioning applications. The present closed loop control ...
    • Coated fullerenes, compositions and dielectrics made therefrom 

      Barron, Andrew R.; Flood, Dennis J.; Whitsitt, Elizabeth (2016-03-22)
      The present invention relates to coated fullerenes comprising a layer of at least one inorganic material covering at least a portion of at least one surface of a fullerene and methods for making. The present invention ...