Recent Submissions

  • Molecular machines open cell membranes 

    García-López, Víctor; Chen, Fang; Nilewski, Lizanne G.; Duret, Guillaume; Aliyan, Amir; Kolomeisky, Anatoly B.; Robinson, Jacob T.; Wang, Gufeng; Pal, Robert; Tour, James M. (2017)
    Beyond the more common chemical delivery strategies, several physical techniques are used to open the lipid bilayers of cellular membranes[1]. These include using electric[2] and magnetic[3] fields, temperature[4], ...
  • Hippocampal awake replay in fear memory retrieval 

    Wu, Chun-Ting; Haggerty, Daniel; Kemere, Caleb; Ji, Daoyun (2017)
    Hippocampal place cells are key to episodic memories. How these cells participate in memory retrieval remains unclear. After rats acquired a fear memory by receiving mild footshocks in a shock zone on a track, we analyzed ...
  • Design and Implementation of a Full-Duplex Pipelined MAC Protocol for Multihop Wireless Networks 

    Choi, Wooyeol; Park, Jaehyoung; Kim, Yonggang; Sabharwal, Ashutosh; Lim, Hyuk (2017)
    In multihop wireless networks, data packets are forwarded from a source node to a destination node through intermediate relay nodes. With half-duplex relay nodes, the end-to-end delay performance of a multihop network ...
  • Quantitative evaluation of performance of three-dimensional printed lenses 

    Gawedzinski, John; Pawlowski, Michal E.; Tkaczyk, Tomasz S. (2017)
    We present an analysis of the shape, surface quality, and imaging capabilities of custom three-dimensional (3-D) printed lenses. 3-D printing technology enables lens prototypes to be fabricated without restrictions on ...
  • Development and Measurements of a Mid-Infrared Multi-Gas Sensor System for CO, CO2 and CH4 Detection 

    Dong, Ming; Zheng, Chuantao; Miao, Shuzhuo; Zhang, Yu; Du, Qiaoling; Wang, Yiding; Tittel, Frank K. (2017)
    A multi-gas sensor system was developed that uses a single broadband light source and multiple carbon monoxide (CO), carbon dioxide (CO2) and methane (CH4) pyroelectric detectors by use of the time division multiplexing ...
  • Low-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers 

    Giglio, Marilena; Patimisco, Pietro; Sampaolo, Angelo; Kriesel, Jason M.; Tittel, Frank K.; Spagnolo, Vincenzo (2018)
    We report single-mode midinfrared laser beam delivery through a 50-cm-long tapered hollow-core waveguide (HCW) having bore diameter linearly increasing from 200 to 260  μm. We performed theoretical calculations to identify ...
  • Interference management with mismatched partial channel state information 

    Vahid, Alireza; Aggarwal, Vaneet; Avestimehr, A. Salman; Sabharwal, Ashutosh (2017)
    We study the fundamental limits of communications over multi-layer wireless networks where each node has only limited knowledge of the channel state information. In particular, we consider the scenario in which each ...
  • Vector bin-and-cancel for MIMO distributed full-duplex 

    Bai, Jingwen; Sabharwal, Ashutosh (2017-08-04)
    Abstract In a multi-input multi-output (MIMO) full-duplex network, where an in-band full-duplex infrastructure node communicates with two half-duplex mobiles supporting simultaneous up- and downlink flows, ...
  • A Miniaturized QEPAS Trace Gas Sensor with a 3D-Printed Acoustic Detection Module 

    Yang, Xiaotao; Xiao, Youhong; Ma, Yufei; He, Ying; Tittel, Frank K. (2017)
    A 3D printing technique was introduced to a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor and is reported for the first time. The acoustic detection module (ADM) was designed and fabricated using the 3D printing ...
  • Compact photoacoustic module for methane detection incorporating interband cascade light emitting device 

    Zheng, Huadan; Lou, Minhan; Dong, Lei; Wu, Hongpeng; Ye, Weilin; Yin, Xukun; Kim, Chul Soo; Kim, Mijin; Bewley, William W.; Merritt, Charles D.; Canedy, Chadwick L.; Warren, Michael V.; Vurgaftman, Igor; Meyer, Jerry R.; Tittel, Frank K. (2017)
    A photoacoustic module (PAM) for methane detection was developed by combining a novel 3.2 μm interband cascade light emitting device (ICLED) with a compact differential photoacoustic cell. The ICLED with a 22-stage interband ...
  • Reconstructing rooms using photon echoes: A plane based model and reconstruction algorithm for looking around the corner 

    Pediredla, Adithya Kumar; Buttafava, Mauro; Tosi, Alberto; Cossairt, Oliver; Veeraraghavan, Ashok (2017)
    Can we reconstruct the entire internal shape of a room if all we can directly observe is a small portion of one internal wall, presumably through a window in the room? While conventional wisdom may indicate that this is ...
  • Continuous checkpointing of HTM transactions in NVM 

    Giles, Ellis; Doshi, Kshitij; Varman, Peter (2017)
    This paper addresses the challenges of coupling byte addressable non-volatile memory (NVM) and hardware transaction memory (HTM) in high-performance transaction processing. We first show that HTM transactions can be ordered ...
  • Exploring the effect of food intake and physical activity on body weight 

    Prioleau, Temiloluwa; Heng, Yuqiang; Veeraraghavan, Ashok; Sabharwal, Ashutosh (2017)
    Body weight is an important measurement parameter towards management of obesity, diabetes and overall health. Previous research and society at large has primarily focused on long-term fluctuation in body weight to describe ...
  • Persisting in-memory databases using SCM 

    Giles, Ellis; Doshi, Kshitij; Varman, Peter (2016)
    Big Data applications need to be able to access large amounts of variable data as fast as possible. Emerging Storage Class Memory (SCM) fit this need by making memory available in large capacity while making changes endure ...
  • Targeting pancreatic cancer with magneto-fluorescent theranostic gold nanoshells 

    Chen, Wenxue; Ayala-Orozco, Ciceron; Biswal, Nrusingh C.; Perez-Torres, Carlos; Bartels, Marc; Bardhan, Rizia; Stinnet, Gary; Liu, Xian-De; Ji, Baoan; Deorukhkar, Amit; Brown, Lisa V.; Guha, Sushovan; Pautler, Robia G.; Krishnan, Sunil; Halas, Naomi J.; Joshi, Amit (2014)
    Aim: We report a magneto-fluorescent theranostic nanocomplex targeted to neutrophil gelatinase-associated lipocalin (NGAL) for imaging and therapy of pancreatic cancer. Materials & methods: Gold nanoshells resonant at 810 ...
  • Modulation-Doped Multiple Quantum Wells of Aligned Single-Wall Carbon Nanotubes 

    Komatsu, Natsumi; Gao, Weilu; Chen, Peiyu; Guo, Cheng; Babakhani, Aydin; Kono, Junichiro (2017)
    Heterojunctions, quantum wells, and superlattices with precise doping profiles are behind today's electronic and photonic devices based on III–V compound semiconductors such as GaAs. Currently, there is considerable interest ...
  • An Automated System for Interactively Learning Software Testing 

    Smith, Rebecca; Tang, Terry; Warren, Joe; Rixner, Scott (2017)
    Testing is an important, time-consuming, and often difficult part of the software development process. It is therefore critical to introduce testing early in the computer science curriculum, and to provide students with ...
  • A terahertz band-pass resonator based on enhanced reflectivity using spoof surface plasmons 

    Liu, Jingbo; Mendis, Rajind; Mittleman, Daniel M. (2013)
    We demonstrate a band-pass resonator in the terahertz (THz) range, based on a frequency-selective designer reflector. The resonator consists of a parallel-plate waveguide, a designed groove pattern cut into the output facet ...
  • SAVI: Synthetic apertures for long-range, subdiffraction-limited visible imaging using Fourier ptychography 

    Holloway, Jason; Wu, Yicheng; Sharma, Manoj K.; Cossairt, Oliver; Veeraraghavan, Ashok (2017)
    Synthetic aperture radar is a well-known technique for improving resolution in radio imaging. Extending these synthetic aperture techniques to the visible light domain is not straightforward because optical receivers cannot ...
  • Classification of hyperspectral imagery with neural networks: comparison to conventional tools 

    Merényi, Erzsébet; Farrand, William H.; Taranik, James V.; Minor, Timothy B. (2014)
    Efficient exploitation of hyperspectral imagery is of great importance in remote sensing. Artificial intelligence approaches have been receiving favorable reviews for classification of hyperspectral data because the ...

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