Search Results - "Gopalakrishnan, Karthik"

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  1. 1

    Control and Optimization of Air Traffic Networks by Gopalakrishnan, Karthik, Balakrishnan, Hamsa

    “…The air transportation system connects the world through the transport of goods and people. However, operational inefficiencies such as flight delays and…”
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    Journal Article
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    Quantitative fractography of mixed mode fracture in glass and ceramics by Gopalakrishnan, Karthik, Mecholsky, John J.

    Published in Journal of the European Ceramic Society (01-11-2014)
    “…Many ceramic structural applications involve a combination of tensile (mode I) and shear (mode II) loading conditions. Quantitative fractography was performed…”
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    Journal Article
  3. 3

    Traffic management protocols for advanced air mobility by Chin, Christopher, Qin, Victor, Gopalakrishnan, Karthik, Balakrishnan, Hamsa

    Published in Frontiers in Aerospace Engineering (17-05-2023)
    “…The demand for advanced air mobility (AAM) operations is expected to be at a much larger scale than conventional aviation. Additionally, AAM flight operators…”
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    Journal Article
  4. 4

    Efficient and fair traffic flow management for on-demand air mobility by Chin, Christopher, Gopalakrishnan, Karthik, Balakrishnan, Hamsa, Egorov, Maxim, Evans, Antony

    Published in CEAS aeronautical journal (01-04-2022)
    “…The increased use of drones and air-taxis is expected to make airspace resources more congested, necessitating the use of unmanned aircraft systems traffic…”
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    Journal Article
  5. 5

    Dynamics of disruption and recovery in air transportation networks by Li, Max Z., Gopalakrishnan, Karthik, Balakrishnan, Hamsa, Shin, Sang Hyun, Jalan, Darsh, Nandi, Aritro, Marla, Lavanya

    Published in CEAS aeronautical journal (01-04-2022)
    “…Flight delays occur in the air transportation system when disruptive events such as weather, equipment outage, or congestion create an imbalance between system…”
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    Journal Article
  6. 6

    Quenching and Recoupling of Echo Modulations in NMR Spectroscopy by Gopalakrishnan, Karthik, Aeby, Nicolas, Bodenhausen, Geoffrey

    Published in Chemphyschem (24-08-2007)
    “…Trains of spin echoes are normally modulated by homonuclear scalar couplings. It has long been known that echo modulations are quenched when the…”
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    Journal Article
  7. 7

    Efficiency and Fairness in Unmanned Air Traffic Flow Management by Chin, Christopher, Gopalakrishnan, Karthik, Egorov, Maxim, Evans, Antony, Balakrishnan, Hamsa

    “…As the demand for Unmanned Aircraft Systems (UAS) operations increases, UAS Traffic Flow Management (UTFM) initiatives are needed to mitigate congestion, and…”
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    Journal Article
  8. 8

    Network-centric benchmarking of operational performance in aviation by Gopalakrishnan, Karthik, Li, Max Z., Balakrishnan, Hamsa

    “…•Stakeholder-specific performance analysis is challenging in large-scale systems.•Performance baselines derived from clustering using network-theoretic…”
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    Journal Article
  9. 9

    An empirical study of the resilience of the US and European air transportation networks by Başpınar, Barış, Gopalakrishnan, Karthik, Koyuncu, Emre, Balakrishnan, Hamsa

    Published in Journal of air transport management (01-01-2023)
    “…Air travel connects people and goods across vast geographical regions. However, operational inter-dependencies in the air transportation system due to factors…”
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    Journal Article
  10. 10

    Timescales of delay propagation in airport networks by Wang, Yanjun, Li, Max Z., Gopalakrishnan, Karthik, Liu, Tongdan

    “…Flight delays persist and spread in airport networks due to high interconnectivity in the air transportation infrastructure. How quickly delay propagates…”
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    Journal Article
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    Classification of adhesive bonding between thermoplastic composites using ultrasonic testing aided by machine learning by Li, Jiaoyang, Gopalakrishnan, Karthik, Piao, Guanyu, Pacha, Ranjit, Walia, Parvinder, Deng, Yiming, Chakrapani, Sunil Kishore

    “…Adhesive bonding is widely used for joining light weight structures and surface preparation methods play a significant role in improving the bonding quality…”
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    Journal Article
  13. 13

    MR Neurography of Brachial Plexus at 3.0 T with Robust Fat and Blood Suppression by Wang, Xinzeng, Harrison, Crystal, Mariappan, Yogesh K, Gopalakrishnan, Karthik, Chhabra, Avneesh, Lenkinski, Robert E, Madhuranthakam, Ananth J

    Published in Radiology (01-05-2017)
    “…Purpose To develop and evaluate magnetic resonance (MR) neurography of the brachial plexus with robust fat and blood suppression for increased conspicuity of…”
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    Journal Article
  14. 14

    Lifetimes of the singlet-states under coherent off-resonance irradiation in NMR spectroscopy by Gopalakrishnan, Karthik, Bodenhausen, Geoffrey

    Published in Journal of magnetic resonance (1997) (01-10-2006)
    “…Singlet-states | S 〉 = ( | α β 〉 - | β α 〉 ) / 2 can be excited in pairs of coupled spins I and S, first by preparing either a non-vanishing zero-quantum…”
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    Journal Article
  15. 15

    Biomass and lipid production of Chlorella protothecoides under heterotrophic cultivation on a mixed waste substrate of brewer fermentation and crude glycerol by Feng, Xiaoyu, Walker, Terry H., Bridges, William C., Thornton, Charles, Gopalakrishnan, Karthik

    Published in Bioresource technology (01-08-2014)
    “…•C. protothecoides can utilize brewer fermentation and crude glycerol waste.•C. protothecoides removed organic carbon and nitrogen in mixed waste.•The old and…”
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    Journal Article
  16. 16

    When Efficiency Meets Equity in Congestion Pricing and Revenue Refunding Schemes by Jalota, Devansh, Solovey, Kiril, Gopalakrishnan, Karthik, Zoepf, Stephen, Balakrishnan, Hamsa, Pavone, Marco

    “…Congestion pricing has long been hailed as a means to mitigate traffic congestion; however, its practical adoption has been limited due to the resulting social…”
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    Journal Article
  17. 17

    Learning Paradigms for the Identification of Elastic Properties of Composites Using Ultrasonic Guided Waves by Gopalakrishnan, Karthik

    Published 01-01-2020
    “…Identification of elastic properties of composites is relevant for both nondestructive materials characterization as well as for in-situ condition monitoring…”
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    Dissertation
  18. 18

    Evaluating feasibility of high resolution T1-perfusion MRI with whole brain coverage using compressed SENSE: Application to glioma grading by Sasi S, Dinil, Ramaniharan, Anandh K., Bhattacharjee, Rupsa, Gupta, Rakesh K., Saha, Indrajit, Van Cauteren, Marc, Shah, Tejas, Gopalakrishnan, Karthik, Gupta, Abhinav, Singh, Anup

    Published in European journal of radiology (01-08-2020)
    “…•Partial brain coverage of T1-Perfusion MRI acquisition leads to partial acquisition of large or multiple lesions.•Compressed-SENSE based scan acceleration is…”
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    Journal Article
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    Quantitative fractography of mixed-mode fracture in an R-curve material by Gopalakrishnan, Karthik, Mecholsky, John J.

    Published in Journal of materials science (01-10-2013)
    “…Mixed-mode fracture surfaces of an R -curve material were quantitatively assessed using fractography. The R -curve material chosen was a mica glass ceramic…”
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    Journal Article