Now showing items 1-20 of 1907

    • Biophysics of object segmentation in a collision-detecting neuron 

      Dewell, Richard Burkett; Gabbiani, Fabrizio (2018)
      Adaptive collision avoidance behaviours require accurate detection of complex spatiotemporal properties of an object approaching in an animal's natural, three-dimensional environment. Within the locust, the lobula giant ...
    • Metallic nanoparticles for cancer immunotherapy 

      Evans, Emily Reiser; Bugga, Pallavi; Asthana, Vishwaratn; Drezek, Rebekah (2018)
      Cancer immunotherapy, or the utilization of the body’s immune system to attack tumor cells, has gained prominence over the past few decades as a viable cancer treatment strategy. Recently approved immunotherapeutics have ...
    • Isotropic Seebeck coefficient of aligned single-wall carbon nanotube films 

      Fukuhara, Kengo; Ichinose, Yota; Nishidome, Hiroyuki; Yomogida, Yohei; Katsutani, Fumiya; Komatsu, Natsumi; Gao, Weilu; Kono, Junichiro; Yanagi, Kazuhiro (2018)
      How the morphology of a macroscopic assembly of nanoobjects affects its properties is a long-standing question in nanomaterials science and engineering. Here, we examine how the thermoelectric properties of a flexible thin ...
    • Long distance, distributed gas sensing based on micro-nano fiber evanescent wave quartz-enhanced photoacoustic spectroscopy 

      He, Ying; Ma, Yufei; Tong, Yao; Yu, Xin; Peng, Zhenfang; Gao, Jing; Tittel, Frank K. (2017)
      A long distance, distributed gas sensing using the micro-nano fiber evanescent wave (FEW) quartz enhanced photoacoustic spectroscopy technique was demonstrated. Such a sensor scheme has the advantages of higher detection ...
    • Performance Enhancement of Methane Detection Using a Novel Self-Adaptive Mid-Infrared Absorption Spectroscopy Technique 

      Song, Fang; Zheng, Chuantao; Yan, Wanhong; Ye, Wei Lin; Zhang, Yu; Wang, Yiding; Tittel, Frank K. (2018)
      An electrical-domain self-adaptive mid-infrared absorption spectroscopy for methane detection based on an interband cascade laser was demonstrated. By adding noise into the laser drive signal, denoising and sensing ...
    • Quartz-tuning-fork enhanced photothermal spectroscopy for ultra-high sensitive trace gas detection 

      Ma, Yufei; He, Ying; Tong, Yao; Yu, Xin; Tittel, Frank K. (2018)
      A gas sensing method based on quartz-tuning-fork enhanced photothermal spectroscopy (QEPTS) is reported in this paper. Unlike usually used thermally sensitive elements, a sharply resonant quartz-tuning-fork with the ...
    • The structure–energy landscape of NMDA receptor gating 

      Dolino, Drew M.; Chatterjee, Sudeshna; MacLean, David M.; Flatebo, Charlotte; Bishop, Logan D.C.; Shaikh, Sana A.; Landes, Christy F.; Jayaraman, Vasanthi (2017)
      N-Methyl-D-aspartate (NMDA) receptors are the main calcium-permeable excitatory receptors in the mammalian central nervous system. The NMDA receptor gating is complex, exhibiting multiple closed, open, and desensitized ...
    • Review of Incoherent Broadband Cavity-Enhanced Absorption Spectroscopy (IBBCEAS) for Gas Sensing 

      Zheng, Kaiyuan; Zheng, Chuantao; Zhang, Yu; Wang, Yiding; Tittel, Frank K. (2018)
      Incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) is of importance for gas detection in environmental monitoring. This review summarizes the unique properties, development and recent progress of the ...
    • Integrated light-sheet illumination using metallic slit microlenses 

      Ye, Fan; Avants, Benjamin W.; Veeraraghavan, Ashok; Robinson, Jacob T. (2018)
      Light sheet microscopy (LSM) - also known as selective plane illumination microscopy (SPIM) - enables high-speed, volumetric imaging by illuminating a two-dimensional cross-section of a specimen. Typically, this light sheet ...
    • Magnetotransport in type-enriched single-wall carbon nanotube networks 

      Wang, X.; Gao, W.; Li, X.; Zhang, Q.; Nanot, S.; Hároz, E.H.; Kono, J.; Rice, W.D. (2018)
      Single-wall carbon nanotubes (SWCNTs) exhibit a wide range of physical phenomena depending on their chirality. Nanotube networks typically contain a broad mixture of chiralities, which prevents an in-depth understanding ...
    • Nitrous oxide quartz-enhanced photoacoustic detection employing a broadband distributed-feedback quantum cascade laser array 

      Giglio, Marilena; Patimisco, Pietro; Sampaolo, Angelo; Zifarelli, Andrea; Blanchard, Romain; Pfluegl, Christian; Witinski, Mark F.; Vakhshoori, Daryoosh; Tittel, Frank K.; Spagnolo, Vincenzo (2018)
      We present a gas sensing system based on quartz-enhanced photoacoustic spectroscopy (QEPAS) employing a monolithic distributed-feedback quantum cascade laser (QCL) array operated in a pulsed mode as a light source. The ...
    • Near-infrared acetylene sensor system using off-axis integrated-cavity output spectroscopy and two measurement schemes 

      Zheng, Kaiyuan; Zheng, Chuantao; He, Qixin; Yao, Dan; Hu, Lien; Zhang, Yu; Wang, Yiding; Tittel, Frank K. (2018)
      For highly sensitive and accurate acetylene (C2H2) detection, a near-infrared (NIR) off-axis integrated-cavity output spectroscopy (OA-ICOS) sensor system based on an ultra-compact cage-based absorption cell was proposed. ...
    • A novel mathematical method for disclosing oscillations in gene transcription: A comparative study 

      Antoulas, Athanasios C.; Zhu, Bokai; Zhang, Qiang; York, Brian; O'Malley, Bert W.; Dacso, Clifford C. (2018)
      Circadian rhythmicity, the 24-hour cycle responsive to light and dark, is determined by periodic oscillations in gene transcription. This phenomenon has broad ramifications in physiologic function. Recent work has disclosed ...
    • Highly sensitive and selective CO sensor using a 2.33 μm diode laser and wavelength modulation spectroscopy 

      Cui, Ruyue; Dong, Lei; Wu, Hongpeng; Li, Shangzhi; Zhang, Lei; Ma, Weiguang; Yin, Wangbao; Xiao, Liantuan; Jia, Suotang; Tittel, Frank K. (2018)
      A ppm-level CO sensor based on a 2f wavelength modulation spectroscopy (2f-WMS) technique was developed for the application of SF6 decomposition analysis in an electric power system. A detailed investigation of the optimum ...
    • A room-temperature mid-infrared photodetector for on-chip molecular vibrational spectroscopy 

      Zheng, Bob; Zhao, Hangqi; Cerjan, Ben; Yazdi, Sadegh; Ringe, Emilie; Nordlander, Peter; Halas, Naomi J. (2018)
      Infrared (IR) photodetection is of major scientific and technical interest since virtually all molecules exhibit characteristic vibrational modes in the mid-infrared region of the spectrum, giving rise to molecular ...
    • Uncovering temporal structure in hippocampal output patterns 

      Maboudi, Kourosh; Ackermann, Etienne; de Jong, Laurel Watkins; Pfeiffer, Brad E.; Foster, David; Diba, Kamran; Kemere, Caleb (2018)
      Place cell activity of hippocampal pyramidal cells has been described as the cognitive substrate of spatial memory. Replay is observed during hippocampal sharp-wave-ripple-associated population burst events (PBEs) and is ...
    • Data-Driven Model Order Reduction of Linear Switched Systems in the Loewner Framework 

      Gosea, I.V.; Petreczky, M.; Antoulas, A.C. (2018)
      The Loewner framework for model reduction is extended to the class of linear switched systems. One advantage of this framework is that it introduces a trade-off between accuracy and complexity. Moreover, through this ...
    • Conveying language through haptics: a multi-sensory approach 

      Dunkelberger, Nathan; Sullivan, Jenny; Bradley, Joshua; Walling, Nickolas P.; Manickam, Indu; Dasarathy, Gautam; Israr, Ali; Lau, Frances W.Y.; Klumb, Keith; Knott, Brian; Abnousi, Freddy; Baraniuk, Richard; O'Malley, Marcia K. (2018)
      In our daily lives, we rely heavily on our visual and auditory channels to receive information from others. In the case of impairment, or when large amounts of information are already transmitted visually or aurally, ...
    • 3D printed fiber optic faceplates by custom controlled fused deposition modeling 

      Wang, Ye; Gawedzinski, John; Pawlowski, Michal E.; Tkaczyk, Tomasz S. (2018)
      A 3D printing technique for manufacturing air-clad coherent fiber optic faceplates is presented. The custom G-code programming is implemented on a fused deposition modeling (FDM) desktop printer to additively draw optical ...
    • Scaling law for excitons in 2D perovskite quantum wells 

      Blancon, J.-C.; Stier, A.V.; Tsai, H.; Nie, W.; Stoumpos, C.C.; Traoré, B.; Pedesseau, L.; Kepenekian, M.; Katsutani, F.; Noe, G.T.; Kono, J.; Tretiak, S.; Crooker, S.A.; Katan, C.; Kanatzidis, M.G.; Crochet, J.J.; Even, J.; Mohite, A.D. (2018)
      Ruddlesden-Popper halide perovskites are 2D solution-processed quantum wells with a general formula A2A'n-1M n X3n+1, where optoelectronic properties can be tuned by varying the perovskite layer thickness (n-value), and ...