Search Results - "Campbell, Matthew F"

Progress Toward High Power Output in Thermionic Energy Converters by Campbell, Matthew F., Celenza, Thomas J., Schmitt, Felix, Schwede, Jared W., Bargatin, Igor

“…Thermionic energy converters are solid‐state heat engines that have the potential to produce electricity with efficiencies of over 30% and area‐specific power…”
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Controlled levitation of nanostructured thin films for sun-powered near-space flight by Azadi, Mohsen, Popov, George A, Lu, Zhipeng, Eskenazi, Andy G, Bang, Avery Ji Won, Campbell, Matthew F, Hu, Howard, Bargatin, Igor

“…We report light-driven levitation of macroscopic polymer films with nanostructured surface as candidates for long-duration near-space flight. We levitated…”
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Relativistic Light Sails Need to Billow by Campbell, Matthew F, Brewer, John, Jariwala, Deep, Raman, Aaswath P, Bargatin, Igor

“…We argue that light sails with nanometer-scale thicknesses that are rapidly accelerated to relativistic velocities by lasers must be significantly curved in…”
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Multiscale Photonic Emissivity Engineering for Relativistic Lightsail Thermal Regulation by Brewer, John, Campbell, Matthew F, Kumar, Pawan, Kulkarni, Sachin, Jariwala, Deep, Bargatin, Igor, Raman, Aaswath P

“…The Breakthrough Starshot Initiative aims to send a gram-scale probe to our nearest extrasolar neighbors using a laser-accelerated lightsail traveling at…”
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Shock tube study of normal heptane first-stage ignition near 3.5 atm by Campbell, Matthew F., Wang, Shengkai, Davidson, David F., Hanson, Ronald K.

“…Shock tube ignition delay times and species time history measurements for Primary Reference Fuels (PRFs) such as normal heptane provide targets for the…”
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Formation and emission of large furans and oxygenated hydrocarbons from flames by Johansson, K. Olof, Dillstrom, Tyler, Monti, Matteo, Gabaly, Farid El, Campbell, Matthew F., Schrader, Paul E., Popolan-Vaida, Denisia M., Richards-Henderson, Nicole K., Wilson, Kevin R., Violi, Angela, Michelsen, Hope A.

“…Many oxygenated hydrocarbon species formed during combustion, such as furans, are highly toxic and detrimental to human health and the environment. These…”
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Radical–radical reactions, pyrene nucleation, and incipient soot formation in combustion by Johansson, K. Olof, Dillstrom, Tyler, Elvati, Paolo, Campbell, Matthew F., Schrader, Paul E., Popolan-Vaida, Denisia M., Richards-Henderson, Nicole K., Wilson, Kevin R., Violi, Angela, Michelsen, Hope A.

“…We present a combined experimental and probabilistic simulation study of soot-precursor. The experiments were conducted using aerosol mass spectrometry coupled…”
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Hollow Atomic Force Microscopy Cantilevers with Nanoscale Wall Thicknesses by Cha, Wujoon, Campbell, Matthew F., Hasz, Kathryn, Nicaise, Samuel M., Lilley, Drew E., Sato, Takaaki, Carpick, Robert W., Bargatin, Igor

“…In atomic force microscopy, the cantilever probe is a critical component whose properties determine the resolution and speed at which images with nanoscale…”
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Distinguishing Gas-Phase and Nanoparticle Contributions to Small-Angle X‑ray Scattering in Reacting Aerosol Flows by Michelsen, Hope A., Campbell, Matthew F., Tran, Ich C., Johansson, K. Olof, Schrader, Paul E., Bambha, Ray P., Hammons, Joshua A., Schaible, Eric, Zhu, Chenhui, van Buuren, Anthony

“…We have developed a strategy for distinguishing between small-angle X-ray scattering (SAXS) from gas-phase species and newly formed nanoparticles in mixed gas-…”
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Ignition delay times of very-low-vapor-pressure biodiesel surrogates behind reflected shock waves by Campbell, Matthew F., Davidson, David F., Hanson, Ronald K.

“…•The aerosol shock tube allows measurements of very-low-vapor-pressure fuels.•Aerosol shock tube data compare favorably with that of a heated shock…”
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Constrained reaction volume shock tube study of n-heptane oxidation: Ignition delay times and time-histories of multiple species and temperature by Campbell, Matthew F., Wang, Shengkai, Goldenstein, Christopher S., Spearrin, R. Mitchell, Tulgestke, Andrew M., Zaczek, Luke T., Davidson, David F., Hanson, Ronald K.

“…Ignition delay times of normal heptane have been measured at temperatures ranging from 651 to 823K and at pressures between 6.1 and 7.4atm at an equivalence…”
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Scaling relation for high-temperature biodiesel surrogate ignition delay times by Campbell, Matthew F., Davidson, David F., Hanson, Ronald K.

“…•A scaling relationship for high-temperature biodiesel ignition times is presented.•Negative pressure, carbon chain length, and oxygen mole fraction scaling…”
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Nanostructured Spacers for Thermionic and Thermophotovoltaic Energy Converters by Campbell, Matthew F., Azadi, Mohsen, Lu, Zhipeng, Eskenazi, Andy G., Jain, Akshat, Bang, Ji Won, Sieg, Philip G., Popov, George A., Nicaise, Samuel M., Van Houten, Kyana C., Schmitt, Felix, Schwede, Jared W., Bargatin, Igor

“…Microgap thermionic energy converters and nanogap thermophotovoltaic devices can efficiently generate electricity from heat without using moving parts…”
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Demonstration of Atmospheric-Pressure Radiometer With Nanocardboard Vanes by Azadi, Mohsen, Lu, Zhipeng, Popov, George A., Stanczak, Christopher H., Eskenazi, Andy G., Ponnarassery, Pratik, Cortes, John, Campbell, Matthew F., Bargatin, Igor

“…Crookes radiometers have been the subject of numerous theoretical, numerical, and experimental studies because of the complicated forces they exhibit as well…”
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Microfabricated Foldable Wings for Centimeter-Scale Microflyers by Cha, Wujoon, Campbell, Matthew F., Popov, George A., Stanczak, Christopher H., Estep, Anna K., Steager, Edward B., Sung, Cynthia R., Yim, Mark H., Bargatin, Igor

“…Many micro-aerial vehicles can benefit from having compact and robust pre-deployment configurations that can later transform into larger and more capable…”
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Critical Assessment of Photoionization Efficiency Measurements for Characterization of Soot-Precursor Species by Johansson, K. Olof, Zádor, Judit, Elvati, Paolo, Campbell, Matthew F, Schrader, Paul E, Richards-Henderson, Nicole K, Wilson, Kevin R, Violi, Angela, Michelsen, Hope A

“…We present a critical evaluation of photoionization efficiency (PIE) measurements coupled with aerosol mass spectrometry for the identification of condensed…”
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Photoionization Efficiencies of Five Polycyclic Aromatic Hydrocarbons by Johansson, K. Olof, Campbell, Matthew F, Elvati, Paolo, Schrader, Paul E, Zádor, Judit, Richards-Henderson, Nicole K, Wilson, Kevin R, Violi, Angela, Michelsen, Hope A

“…We have measured photoionization-efficiency curves for pyrene, fluoranthene, chrysene, perylene, and coronene in the photon energy range of 7.5–10.2 eV and…”
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Soot-particle core-shell and fractal structures from small-angle X-ray scattering measurements in a flame by Michelsen, Hope A., Campbell, Matthew F., Johansson, K. Olof, Tran, Ich C., Schrader, Paul E., Bambha, Ray P., Cenker, Emre, Hammons, Joshua A., Zhu, Chenhui, Schaible, Eric, van Buuren, Anthony

“…We have characterized soot particles measured in situ in a laminar co-flow ethylene-air diffusion flame using small-angle X-ray scattering (SAXS). The analysis…”
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Distinguishing Gas-Phase and Nanoparticle Contributions to Small-Angle X-ray Scattering in Reacting Aerosol Flows by Michelsen, Hope A., Campbell, Matthew F., Tran, Ich C., Johansson, K. Olof, Schrader, Paul E., Bambha, Ray P., Hammons, Joshua A., Schaible, Eric, Zhu, Chenhui, van Buuren, Anthony

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Distinguishing Gas-Phase and Nanoparticle Contributions to Small-Angle X-ray Scattering in Reacting Aerosol Flows by Michelsen, Hope A., Campbell, Matthew F., Tran, Ich C., Johansson, K. Olof, Schrader, Paul E., Bambha, Ray P., Hammons, Joshua A., Schaible, Eric, Zhu, Chenhui, van Buuren, Anthony

“…We have developed a strategy for distinguishing between small-angle X-ray scattering (SAXS) from gas-phase species and newly formed nanoparticles in mixed gas-…”
Get full text