Now showing items 1-20 of 245

    • Shared and Distributed X-in-the-Loop Tests for Automotive Systems: Feasibility Study 

      Schreiber, Viktor; Ivanov, Valentin; Augsburg, Klaus; Noack, Matti; Shyrokau, Barys; Sandu, Corina; Els, Pieter Schalk (IEEE, 2018)
      X-in-the-loop (XIL) technologies are receiving increased attention in modern automotive development processes. In particular, collaborative experiments, such as XIL tools, have efficient applications in the design of ...
    • Delay-Universal Channel Coding With Feedback 

      Noor-A-Rahim, Md; Khyam, M. O.; Guan, Yong Liang; Ali, G. G. Md Nawaz; Nguyen, Khoa D.; Lechner, Gottfried (IEEE, 2018)
      In this paper, the design of error-correcting or channel codes for delay-universal/anytime communication is shown while considering systems with and without a feedback link. We construct practical and low complexity anytime ...
    • Momentum, Spring 2019 

      Unknown author (Virginia Tech, 2019)
      This is the Spring 2019 issue of Momentum, the quarterly magazine of the Department of Mechanical Engineering at Virginia Tech. Each issue looks at research, faculty, students, awards and what's going on in the department.
    • Mechanical Engineering 2018 Annual Report 

      Unknown author (Virginia Tech, 2018)
      A comprehensive look at the Virginia Tech Department of Mechanical Engineering and its accomplishments in 2018.
    • Functional compartmentalization in the hemocoel of insects 

      Pendar, Hodjat; Aviles, Jessica; Adjerid, Khaled; Schoenewald, Caroline; Socha, John J. (Springer Nature, 2019-04-15)
      The insect circulatory system contains an open hemocoel, in which the mechanism of hemolymph flow control is ambiguous. As a continuous fluidic structure, this cavity should exhibit pressure changes that propagate quickly. ...
    • Modeling and analysis of a high-displacement pneumatic artificial muscle with integrated sensing 

      Yang, H.D.; Greczek, B.T.; Asbeck, A.T. (Frontiers Media S.A., 2019-01-07)
      We present a high-displacement pneumatic artificial muscle made of textiles or plastics that can include integrated electronics to sense its pressure and displacement. Compared to traditional pneumatic muscle actuators ...
    • Multi-scale computational modeling of lightweight aluminum-lithium alloys 

      Acar, P. (Elsevier Ltd, 2019-03-07)
      The present study addresses the multi-scale computational modeling of a lightweight Aluminum-Lithium (Al-Li) 2070 alloy. The Al-Li alloys display significant anisotropy in material properties because of their strong ...
    • Microfluidic reactors for advancing the MS analysis of fast biological responses 

      Lazar, I.M.; Deng, J.; Stremler, M.A.; Ahuja, S. (Nature Publishing Group, 2019-02-11)
      The response of cells to physical or chemical stimuli is complex, unfolding on time-scales from seconds to days, with or without de novo protein synthesis, and involving signaling processes that are transient or sustained. ...
    • Double helical conformation and extreme rigidity in a rodlike polyelectrolyte 

      Wang, Y.; He, Y.; Yu, Z.; Gao, J.; ten, Brinck S.; Slebodnick, C.; Fahs, G.B.; Zanelotti, C.J.; Hegde, M.; Moore, R.B.; Ensing, B.; Dingemans, T.J.; Qiao, R.; Madsen, L.A. (Nature Publishing Group, 2019-02-18)
      The ubiquitous biomacromolecule DNA has an axial rigidity persistence length of ~50 nm, driven by its elegant double helical structure. While double and multiple helix structures appear widely in nature, only rarely are ...
    • Activation of bacterial channel MscL in mechanically stimulated droplet interface bilayers 

      Najem, Joseph S.; Dunlap, Myles D.; Rowe, Ian D.; Freeman, Eric C.; Grant, John W.; Sukharev, Sergei; Leo, Donald J. (Springer Nature, 2015-09-08)
      MscL, a stretch-activated channel, saves bacteria experiencing hypo-osmotic shocks from lysis. Its high conductance and controllable activation makes it a strong candidate to serve as a transducer in stimuli-responsive ...
    • Probing Nanoscale Thermal Transport in Surfactant Solutions 

      Cao, Fangyu; Liu, Ying; Xu, Jiajun; He, Yadong; Hammouda, B.; Qiao, Rui; Yang, Bao (Springer Nature, 2015-11-04)
      Surfactant solutions typically feature tunable nanoscale, internal structures. Although rarely utilized, they can be a powerful platform for probing thermal transport in nanoscale domains and across interfaces with ...
    • Using Encapsulated Phase Change Salts for Concentrated Solar Power Plant 

      Mathur, A.; Kasetty, R.; Oxley, J.; Mendez, J.; Nithyanandam, K. (Elsevier, 2014-06-01)
      Storing thermal energy as latent heat of fusion in phase change material (PCM), such as inorganic salt mixtures, can improve the energy density by as much as 50% while reducing the cost by over 40%. However, to discharge ...
    • A computational investigation of lift generation and power expenditure of Pratt's roundleaf bat (Hipposideros pratti) in forward flight 

      Windes, Peter; Fan, Xiaozhu; Bender, Matt; Tafti, Danesh K.; Müller, Rolf (PLOS, 2018-11-28)
      The aerodynamic mechanisms of bat flight have been studied using a numerical approach. Kinematic data acquired using a high resolution motion capture system was employed to simulate the unsteady air flow around a bat's ...
    • Importance of the Hubbard correction on the thermal conductivity calculation of strongly correlated materials: a case study of ZnO 

      Consiglio, Anthony; Tian, Zhiting (Springer Nature, 2016-11-10)
      The wide bandgap semiconductor, ZnO, has gained interest recently as a promising option for use in power electronics such as thermoelectric and piezoelectric generators, as well as optoelectronic devices. Though much work ...
    • Stopping power beyond the adiabatic approximation 

      Caro, M.; Correa, A. A.; Artacho, E.; Caro, A. (Springer Nature, 2017-06-01)
      Energetic ions traveling in solids deposit energy in a variety of ways, being nuclear and electronic stopping the two avenues in which dissipation is usually treated. This separation between electrons and ions relies on ...
    • Analyzing the Molecular Kinetics of Water Spreading on Hydrophobic Surfaces via Molecular Dynamics Simulation 

      Zhao, Lei; Cheng, Jiangtao (Springer Nature, 2017-09-07)
      In this paper, we report molecular kinetic analyses of water spreading on hydrophobic surfaces via molecular dynamics simulation. The hydrophobic surfaces are composed of amorphous polytetrafluoroethylene (PTFE) with a ...
    • Momentum, Winter 2018 

      Unknown author (Virginia Tech, 2018)
      Momentum is the quarterly magazine of the Department of Mechanical Engineering at Virginia Tech.
    • Nanoscale Bacteria‐Enabled Autonomous Drug Delivery System (NanoBEADS) Enhances Intratumoral Transport of Nanomedicine 

      Suh, SeungBeum; Jo, Ami; Traore, Mahama A.; Zhan, Ying; Coutermarsh-Ott, Sheryl L.; Ringel-Scaia, Veronica M.; Allen, Irving C.; Davis, Richey M.; Behkam, Bahareh (Wiley, 2018-12-05)
      Cancer drug delivery remains a formidable challenge due to systemic toxicity and inadequate extravascular transport of nanotherapeutics to cells distal from blood vessels. It is hypothesized that, in absence of an external ...
    • Multi-material Additive Manufacturing of Metamaterials with Giant, Tailorable Negative Poisson's Ratios 

      Chen, Da; Zheng, Xiaoyu (Springer Nature, 2018-06-14)
      Nature has evolved with a recurring strategy to achieve unusual mechanical properties through coupling variable elastic moduli from a few GPa to below KPa within a single tissue. The ability to produce multi-material, ...
    • Revised partial coupling in fluid–particulate systems 

      Elghannay, Husam A.; Tafti, Danesh K. (Sage, 2018-08-04)
      Fluid equations in Computational Fluid Dynamics coupled with Discrete Element Method (CFD-DEM) simulations solve the volume-averaged Navier–Stokes equations. Full coupling between the dispersed phase and continuous phase ...