Browsing FAS Scholarly Articles by Title

Now showing items 7040-7059 of 18292

    • High Performance Quantum Cascade Lasers Based on Three-Phononresonance Design 

      Wang, Qijie; Pflügl, Christian; Diehl, Laurent; Capasso, Federico; Edamura, Tadataka; Furuta, Shinichi; Yamanishi, Masamichi; Kan, Hirofumi (American Institute of Physics, 2009)
      A quantum cascade laser structure based on three-phonon-resonance design is proposed and demonstrated. Devices, emitting at a wavelength of 9 μm, processed into buried ridge waveguide structures with a 3 mm long, 16 μm ...

    • A High Potential, Low Capacity Fade Rate Iron Complex Posolyte for Aqueous Organic Flow Batteries 

      Gao, Jinxu; Amini, Kiana; George, Thomas Y.; Jing, Yan; Tsukamoto, Tatsuhiro; Xi, Dawei; Gordon, Roy G.; Aziz, Michael (Wiley, 2022-10-07)
      An iron complex, tris(4,4′‐bis(hydroxymethyl)‐2,2′‐bipyridine) iron dichloride is reported, which operates at near‐neutral pH with a redox potential of 0.985 V versus SHE. This high potential compound is employed in the ...

    • High Power Thermoelectrically Cooled and Uncooled Quantum Cascade Lasers With Optimized Reflectivity Facet Coatings 

      Maulini, Richard; Lyakh, Arkadiy; Tsekoun, Alexei; Go, Rowel; Pflügl, Christian; Diehl, Laurent; Capasso, Federico; Patel, C. Kumar N (American Institute of Physics, 2009)
      We present a method of preserving the device wall-plug efficiency by adjusting mirror losses with facet coatings for longer cavity quantum cascade lasers. An experimental study of output power and wall-plug efficiency as ...

    • High quality crystalline YBa2Cu3O7−δ films on thin silicon substrates 

      Haakenaasen, R.; Fork, D. K.; Golovchenko, Jene Andrew (AIP Publishing, 1994)
      YBa2Cu3O7−δ(001) (YBCO)films with near perfect crystallinity have been grown epitaxially on Si(100) using two intermediate buffer layers: Yttrium‐stabilized zirconia (YSZ) and CeO2. All layers were grown by an in situpulsed ...

    • High quality-factor optical nanocavities in bulk single-crystal diamond 

      Burek, Michael John; Chu, Yiwen; Liddy, Madelaine S. Z.; Patel, Parth; Rochman, Jake; Meesala, Srujan; Hong, Wooyoung; Quan, Qimin; Lukin, Mikhail D.; Loncar, Marko (Nature Publishing Group, 2014)
      Single-crystal diamond, with its unique optical, mechanical and thermal properties, has emerged as a promising material with applications in classical and quantum optics. However, the lack of heteroepitaxial growth and ...

    • A high reliability survey of discrete Epoch of Reionization foreground sources in the MWA EoR0 field 

      Carroll, P. A.; Line, J.; Morales, M. F.; Barry, N.; Beardsley, A. P.; Hazelton, B. J.; Jacobs, D. C.; Pober, J. C.; Sullivan, I. S.; Webster, R. L.; Bernardi, G.; Bowman, J. D.; Briggs, F.; Cappallo, R. J.; Corey, B. E.; de Oliveira-Costa, A.; Dillon, J. S.; Emrich, D.; Ewall-Wice, A.; Feng, L.; Gaensler, B; Goeke, R.; Greenhill, Lincoln Jared; Hewitt, J. N.; Hurley-Walker, N.; Johnston-Hollitt, M.; Kaplan, D. L.; Kasper, Justin C.; Kim, HS.; Kratzenberg, E.; Lenc, E.; Loeb, Abraham; Lonsdale, C. J.; Lynch, M. J.; McKinley, B.; McWhirter, S. R.; Mitchell, D. A.; Morgan, E.; Neben, A. R.; Oberoi, D.; Offringa, A. R.; Ord, S; Paul, S.; Pindor, B.; Prabu, T.; Procopio, P.; Riding, J.; Rogers, A. E. E.; Roshi, A.; Shankar, N. Udaya; Sethi, S. K.; Srivani, K. S.; Subrahmanyan, R.; Tegmark, M.; Thyagarajan, Nithyanandan; Tingay, S. J.; Trott, C. M.; Waterson, M.; Wayth, R. B.; Whitney, A. R.; Williams, A.; Williams, C. L.; Wu, C.; Wyithe, J. S. B. (Oxford University Press (OUP), 2016)
      Detection of the Epoch of Reionization HI signal requires a precise understanding of the intervening galaxies and AGN, both for instrumental calibration and foreground removal. We present a catalogue of 7394 extragalactic ...

    • A High Resolution Map of a Cyanobacterial Transcriptome 

      Vijayan, Vikram; Jain, Isha Himani; O'Shea, Erin K (BioMed Central, 2012)
      Background: Previous molecular and mechanistic studies have identified several principles of prokaryotic transcription, but less is known about the global transcriptional architecture of bacterial genomes. Here we perform ...

    • The high resolution X-ray imaging detector planes for the MIRAX mission 

      Rodrigues, Bárbara H. G.; Grindlay, Jonathan E.; Allen, Branden T; Hong, Jaesub; Barthelmy, Scott; Braga, João; D’Amico, Flavio; Rothschild, Richard E. (IOP Publishing, 2013)
      The MIRAX X-ray observatory, the first Brazilian-led astrophysics space mission, is designed to perform an unprecedented wide-field, wide-band hard X-ray (5–200 keV) survey of Galactic X-ray transient sources. In the ...

    • High sensitivity of peat decomposition to climate change through water-table feedback 

      Ise, Takeshi; Dunn, Allison L.; Wofsy, Steven; Moorcroft, Paul (Nature Publishing Group, 2008)
      Historically, northern peatlands have functioned as a carbon sink, sequestering large amounts of soil organic carbon, mainly due to low decomposition in cold, largely waterlogged soils. The water table, an essential ...

    • High Spatial Resolution Kelvin Probe Force Microscopy With Coaxial Probes 

      Brown, Keith A.; Satziner, Kevin J.; Westervelt, Robert M. (Institute of Physics, 2012)
      Kelvin probe force microscopy (KPFM) is a widely used technique to measure the local contact potential difference (CPD) between an AFM probe and the sample surface via the electrostatic force. The spatial resolution of ...

    • A High Voltage Aqueous Zinc–Organic Hybrid Flow Battery 

      Park, Minjoon; Beh, Eugene S.; Fell, Eric; Jing, Yan; Kerr, Emily; De Porcellinis, Diana; Goulet, Marc‐Antoni; Ryu, Jaechan; Wong, Andrew A.; Gordon, Roy; Cho, Jaephil; Aziz, Michael (Wiley, 2019-05-17)
      Water‐soluble redox‐active organic molecules have attracted extensive attention as electrical energy storage alternatives to redox‐active metals that are low in abundance and high in cost. Here an aqueous zinc–organic ...

    • A High Voltage Aqueous Zinc–Organic Hybrid Flow Battery 

      Aziz, Michael; Park, Minjoon; Kerr, Emily; De Porcellinis, Diana; Beh, Eugene S.; Fell, Eric M.; Jing, Yan; Wong, Andrew; Goulet, Marc-Antoni; Ryu, Jaechan; Gordon, Roy G.; Cho, Jaephil (Wiley, 2019-05-17)
      Water‐soluble redox‐active organic molecules have attracted extensive attention as electrical energy storage alternatives to redox‐active metals that are low in abundance and high in cost. Here an aqueous zinc–organic ...

    • High Voltage Dielectrophoretic and Magnetophoretic Hybrid Integrated Circuit / Microfluidic Chip 

      Issadore, David; Franke, Thomas; Brown, Keith Andrew; Hunt, Thomas P; Westervelt, Robert M. (Institute of Electrical and Electronics Engineers, 2009)
      A hybrid integrated circuit (IC)/microfluidic chip is presented that independently and simultaneously traps and moves microscopic objects suspended in fluid using both electric and magnetic fields. This hybrid chip controls ...

    • High-accuracy continuous airborne measurements of greenhouse gases (CO2 and CH4) using the cavity ring-down spectroscopy (CRDS) technique 

      Chen, H.; Winderlich, J.; Gerbig, C.; Hoefer, A.; Rella, C. W.; Crosson, E. R.; Van Pelt, A. D.; Steinbach, J.; Kolle, O.; Beck, V.; Daube, Bruce C.; Gottlieb, Elaine Webster; Chow, Victoria Ye; Santoni, G. W.; Wofsy, Steven Charles (Copernicus GmbH, 2010)
      High-accuracy continuous measurements of greenhouse gases (CO2 and CH4) during the BARCA (Balanço Atmosférico Regional de Carbono na Amazônia) phase B campaign in Brazil in May 2009 were accomplished using a newly available ...

    • High-Affinity Alkynyl Bisubstrate Inhibitors of NicotinamideN-Methyltransferase (NNMT) 

      Policarpo, Rocco; Decultot, Ludovic; May, Elizabeth; Kuzmič, Petr; Carlson, Samuel; Huang, Danny; Chu, Vincent; Wright, Brandon; Dhakshinamoorthy, Saravanakumar; Kannt, Aimo; Rani, Shilpa; Dittakavi, Sreekanth; Panarese, Joseph; Gaudet, Rachelle; Shair, Matthew (American Chemical Society (ACS), 2019-10-07)
      Nicotinamide N-methyltransferase (NNMT) is a metabolic enzyme that methylates nicotinamide (NAM) using cofactor S-adenosylmethionine (SAM). NNMT overexpression has been linked to diabetes, obesity, and various cancers. In ...

    • High-Betweenness Proteins in the Yeast Protein Interaction Network 

      Joy, Maliackal Poulo; Brock, Amy Monique Lepre; Ingber, Donald Elliott; Huang, Sui (Hindawi Publishing Corporation, 2005)
      Structural features found in biomolecular networks that are absent in random networks produced by simple algorithms can provide insight into the function and evolution of cell regulatory networks. Here we analyze “betweenness” ...

    • High-Capacity and High-Stability Electrochemical CO2 Capture Cell with Coupled Electricity Storage 

      Wang, Pan; Pang, Shuai; Jin, Shijian; Yang, Fengcun; Alberts, Maia; Li, Lu; Xi, Dawei; Gordon, Roy; Aziz, Michael; Ji, Yunlong (American Chemical Society (ACS), 2023-01-19)
      We report an electrochemical cell for CO2 capture based on pH swing cycles driven through proton-coupled electron transfer of a newly developed phenazine, 2,2'-(phenazine-1,8-diyl)bis(ethane-1-sulfonate) (1,8-ESP), which ...

    • A High-Coverage Yersinia pestis Genome from a Sixth-Century Justinianic Plague Victim 

      Feldman, Michal; Harbeck, Michaela; Keller, Marcel; Spyrou, Maria A.; Rott, Andreas; Trautmann, Bernd; Scholz, Holger C.; Päffgen, Bernd; Peters, Joris; McCormick, Michael; Bos, Kirsten; Herbig, Alexander; Krause, Johannes (Oxford University Press, 2016)
      The Justinianic Plague, which started in the sixth century and lasted to the mid eighth century, is thought to be the first of three historically documented plague pandemics causing massive casualties. Historical accounts ...

    • High-Current-Density Monolayer CdSe/ZnS Quantum Dot Light-Emitting Devices with Oxide Electrodes 

      Likovich, Edward; Jaramillo, Rafael; Russell, Kasey Joe; Ramanathan, Shriram; Narayanamurti, Venkatesh (Wiley-Blackwell, 2011)

    • High-density Circumstellar Interaction in the Luminous Type Iin Sn 2010jl: The First 1100 Days 

      Fransson, Claes; Ergon, Mattias; Challis, Peter J.; Chevalier, Roger A.; France, Kevin; Kirshner, Robert P.; Marion, G. H.; Milisavljevic, Dan; Smith, Nathan; Bufano, Filomena; Friedman, Andrew S.; Kangas, Tuomas; Larsson, Josefin; Mattila, Seppo; Benetti, Stefano; Chornock, Ryan; Czekala, Ian; Soderberg, Alicia; Sollerman, Jesper (American Astronomical Society, 2014)
      Hubble Space Telescope and ground-based observations of the Type IIn supernova (SN) 2010jl are analyzed, including photometry and spectroscopy in the ultraviolet, optical, and near-IR bands, 26-1128 days after first ...