Search Results - "Warmack, R.J."

A detector for neutron imaging by Britton, C.L., Bryan, W.L., Wintenberg, A.L., Warmack, R.J., McKnight, T.E., Frank, S.S., Cooper, R.G., Dudney, N.J., Veith, G.M., Stephan, A.C.

“…A bright neutron source such as the spallation neutron source (SNS) places extreme requirements on detectors including excellent 2-D spatial imaging and high…”
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Crack-Like Sources of Dislocation Nucleation and Multiplication in Thin Films by Jesson, D. E., Chen, K. M., Pennycook, S. J., Thundat, T., Warmack, R. J.

“…With the combination of the height sensitivity of atomic force microscopy and the strain sensitivity of transmission electron microscopy, it is shown that near…”
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Interdiffusion and impurity diffusion in polycrystalline Mg solid solution with Al or Zn by Kammerer, C.C., Kulkarni, N.S., Warmack, R.J., Sohn, Y.H.

“…•Interdiffusion coefficients within Mg(Al) and Mg(Zn) solid solutions.•Impurity diffusion of Al and Zn in Mg.•Interdiffusion coefficient in Mg(Zn) was higher…”
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Imaging isolated strands of DNA molecules by atomic force microscopy by Thundat, T, Allison, D P, Warmack, R J, Ferrell, T L

“…We have employed an atomic force microscope (AFM) to image in air isolated strands of pBS+ plasmid DNA adsorbed onto freshly cleaved mica. At a DNA…”
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Comparison of Power System Current Sensors via Playback of Electrical Disturbances by Wilson, Aaron J., Warmack, Bruce R.J., Kerekes, Ryan A., Brukiewa, Patrick D.

“…The need to accurately measure high-frequency content in power system voltage and current phenomena is increasingly becoming more of a priority. As the amount…”
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Electrostatic spraying of DNA molecules for investigation by scanning tunneling microscopy by Thundat, T, Warmack, R J, Allison, D P, Ferrell, T L

“…We have investigated electrostatic spraying of DNA onto gold surfaces as an alternative sample-preparation technique for STM studies. Preliminary results show…”
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Detection of mercury vapor using resonating microcantilevers by Thundat, T., Wachter, E. A., Sharp, S. L., Warmack, R. J.

“…Oscillating silicon nitride microcantilevers coated with a thin gold film have been used to detect mercury vapor in air. Cantilever resonance frequency changes…”
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Electrochemically induced adsorption of radio-labeled DNA on gold and HOPG substrates for STM investigations by Brown, G M, Allison, D P, Warmack, R J, Jacobson, K B, Larimer, F W, Woychik, R P, Carrier, W L

“…In a scanning tunneling microscope (STM) electrochemical cell we have studied the effects of electrode potential on both the surface topography and the…”
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Effects of Injection Schemes and Column Geometry on the Performance of Microchip Electrophoresis Devices by Jacobson, Stephen C, Hergenroder, Roland, Koutny, Lance B, Warmack, R. J, Ramsey, J. Michael

“…Three aspects of microchip electrophoresis devices are discussed. Bonding of the substrate and cover slip is accomplished by hydrolizing the surfaces and then…”
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Thermal and ambient-induced deflections of scanning force microscope cantilevers by Thundat, T., Warmack, R. J., Chen, G. Y., Allison, D. P.

“…The deflection of scanning force microscope cantilevers, metal coated on one side, is significantly influenced by both thermal heating and variations in…”
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Non-Parametric Statistical Analysis of Current Waveforms through Power System Sensors by Wilson, Aaron J, Warmack, Bruce R J, Ekti, Ali Riza, Liu, Yilu

“…The protection, control, and monitoring of the power grid is not possible without accurate measurement devices. As the percentage of renewable energy sources…”
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Viscous drag measurements utilizing microfabricated cantilevers by Oden, P. I., Chen, G. Y., Steele, R. A., Warmack, R. J., Thundat, T.

“…The influence of viscous drag forces on cantilevers is investigated using standard atomic force microscope (AFM) cantilevers. Viscosity effects on several…”
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Multiple-input microcantilever sensors by Britton, C.L, Jones, R.L, Oden, P.I, Hu, Z, Warmack, R.J, Smith, S.F, Bryan, W.L, Rochelle, J.M

“…A surface-micromachined micro-electro-mechanical-system (MEMS) process has been used to demonstrate multiple-input chemical sensing using selectively coated…”
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Morphological Evolution of Strained Films by Cooperative Nucleation by Jesson, DE, Chen, KM, Pennycook, SJ, Thundat, T, Warmack, RJ

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Vapor Detection Using Resonating Microcantilevers by Thundat, T, Chen, G. Y, Warmack, R. J, Allison, D. P, Wachter, E. A

“…A micromechanical sensor that uses surface-modified atomic force microscopy cantilevers is described. The surface was modified with phosphoric acid or gelatin…”
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Observation of Knudsen effect with microcantilevers by Passian, A., Warmack, R.J., Wig, A., Farahi, R.H., Meriaudeau, F., Ferrell, T.L., Thundat, T.

“…The Knudsen effect is estimated theoretically and observed experimentally using a U-shaped silicon microcantilever. Though Knudsen forces are extremely small…”
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The determination of boron and lithium in nuclear materials by secondary ion mass spectrometry by Christie, W. H, Eby, R. E, Warmack, R. J, Landau, Larry

“…Secondary ion mass spectrometry (SIMS) has been used for the rapid, accurate analysis of B and Li in various nuclear materials. The problem of sample charging…”
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Uncooled thermal imaging using a piezoresistive microcantilever by Oden, P. I., Datskos, P. G., Thundat, T., Warmack, R. J.

“…The operation of an uncooled, microcantilever-based infrared (IR) imaging device is demonstrated. Bending of the microcantilever is a function of the IR…”
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Remote infrared radiation detection using piezoresistive microcantilevers by Datskos, P. G., Oden, P. I., Thundat, T., Wachter, E. A., Warmack, R. J., Hunter, S. R.

“…A novel micromechanical infrared (IR) radiation sensor has been developed using commercially available piezoresistive microcantilevers. Microcantilevers coated…”
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Micromechanical radiation dosimeter by Thundat, T., Sharp, S. L., Fisher, W. G., Warmack, R. J., Wachter, E. A.

“…We demonstrate the use of microcantilevers coated with ultraviolet cross-linking polymers as optical radiation dosimeters. Upon exposure to radiation, a…”
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