Now showing items 100-119 of 131

    • Scaling Laws in Directional Spreading of Droplets on Wettability-Confined Diverging Tracks 

      Sen, Uddalok; Chatterjee, Souvick; Ganguly, Ranjan; Dodge, Richard; Yu, Lisha; Megaridid, Constantine, M (American Chemical Society, 2018-01-11)
      Spontaneous pumpless transport of droplets on wettability-confined tracks is important for various applications, such as rapid transport and mixing of fluid droplets, enhanced dropwise condensation, biomedical devices, and ...
    • Self-Healing Nanotextured Vascular-like Materials: Mode i Crack Propagation 

      Lee, MW; Sett, S; An, S; Yoon, SS; Yarin, AL (American Chemical Society, 2017-08)
      Here, we investigate crack propagation initiated from an initial notch in a self-healing material. The crack propagation in the core-shell nanofiber mats formed by coelectrospinning and the composites reinforced by them ...
    • Self-healing of nanofiber-based composites in the course of stretching 

      Lee, Min Wook; Sett, Soumyadip; Yoon, Sam S.; Yarin, Alexander L. (Elsevier, 2016-10-26)
      Here we aim to elucidate the self-healing mechanisms in composites with embedded solution-blown nanofibers containing separate reservoirs of epoxy resin and hardener in their cores. In tensile tests of such composite ...
    • Self-healing three-dimensional bulk materials based on core-shell nanofibers 

      Lee, Min Wook; An, Seongpil; Kim, Yong-Il; Yoon, Sam, S.; Yarin, Alexander, L. (Elsevier, 2017-10-09)
      In this study, electrospun core-shell nanofibers containing healing agents are embedded into a three-dimensional bulk matrix in a simple versatile process. Two types of the healing agents (resin monomer and cure) are ...
    • Self-Junctioned Copper Nanofiber Transparent Flexible Conducting Film via Electrospinning and Electroplating. 

      An, S; Jo HS; Kim DY; Lee HJ; Ju BK; Al-Deyab, Salem S.; Ahn JH; Qin Y; Swihart MT; Yarin AL; Yoon SS (Wiley, 2016-09)
      Self-junctioned copper nanofiber transparent flexible films are produced using electrospinning and electroplating processes that provide high performances of T = 97% and Rs = 0.42 Ω sq−1 by eliminating junction resistance ...
    • Self-running and self-floating two-dimensional actuator using near-field acoustic levitation. 

      Chen K; Gao S; Pan Y; Guo P (AIP Publishing, 2016-09-10)
      Non-contact actuators are promising technologies in metrology, machine-tools, and hovercars, but have been suffering from low energy efficiency, complex design, and low controllability. Here we report a new design of a ...
    • Silver-decorated and palladium-coated copper-electroplated fibers derived from electrospun polymer nanofibers 

      An, S; Kim, YL; Jo, HS; Kim, MW; Lee, MW; Yarin, AL; Yoon, SS (Elsevier B.V., 2017-11)
      Here we introduce novel methods of forming silver (Ag) and palladium (Pd) fibers. The Ag and Pd fibers are fabricated by the combination of electrospinning, electroplating, and ion-exchange techniques. Their properties are ...
    • Simplified method for estimating the effect of a hydrogen explosion on a nearby pipeline 

      Yoon, S.S.; Yarin, A.L.; Al-Deyab, Salem S.; Kim, J.H.; Park, H.S.; Bang, B. (Elsevier, 2016-03)
      To predict the effect of hydrogen gas tank explosions on nearby pipelines, we first evaluate the increase in air pressure and velocity on a pipeline after a strong explosion. Then, we calculate the bending of an initially ...
    • Simplified method for estimating the effect of a hydrogen explosion on a nearby pipeline 

      Bang, B; Park, HS; Kim, JH; Al-Deyab, Salem S.; Yarin, AL; Yoon, SS (Elsevier, 2016-03)
      To predict the effect of hydrogen gas tank explosion on a nearby pipeline, air pressure rise and velocity on a pipeline after a strong explosion is evaluated first. Then, bending of an initially straight pipe is calculated. ...
    • Simultaneous 3D MR elastography of the in vivo mouse brain 

      Kearney, Steven, P.; Majumdar, Shreyan; Royston, Thomas, J.; Klatt, Dieter (IOP Publishing, 2017-09-15)
      The feasibility of sample interval modulation (SLIM) magnetic resonance elastography (MRE) for the in vivo mouse brain is assessed, and an alternative SLIM-MRE encoding method is introduced. In SLIM-MRE, the phase accumulation ...
    • Single Droplet Ignition: Theoretical Analyses and Experimental Findings 

      Aggarwal, Suresh K. (Elsevier Inc., 2014)
      Spray ignition represents a critical process in numerous propulsion and energy conversion devices. Compared to a gaseous mixture, ignition in a spray is significantly more complex, as the state of ignition in the ...
    • Single Droplet Ignition: Theoretical Analyses and Experimental Findings 

      Aggarwal, Suresh K. (Elsevier Inc., 2014)
      Spray ignition represents a critical process in numerous propulsion and energy conversion devices. Compared to a gaseous mixture, ignition in a spray is significantly more complex, as the state of ignition in the ...
    • Sintering of compound nonwovens by forced convection of hot air. 

      Staszel, C; Sett, S; Yarin, A.L; Pourdeyhimi, B (Elsevier Inc., 2016-10)
      Sintering and interlocking of model nonwoven materials composed of a mixture of polycaprolactone (PCL) and polyacrylonitrile (PAN) fibers by means of forced convection of hot air through their pores is studied experimentally ...
    • Solution-Blown Nanofiber Mats from Fish Sarcoplasmic Protein 

      Sett, S.; Stephansen, K.; Yarin, A.L. (Elsevier, 2016-04)
      In the present work, solution-blowing was adopted to form nanofibers from fish sarcoplasmic proteins (FSPs). Nanofiber mats containing different weight ratios (up to 90/10) of FSP in the FSP/nylon 6 blended nanofibers were ...
    • SPATIAL ANCF/CRBF BEAM ELEMENTS 

      Kulkarni, Shubhankar; Shabana, Ahmed A. (Elsevier, 2018-08-04)
      In this paper, the consistent rotation-based formulation (CRBF) is used to develop new threedimensional beam elements starting with the absolute nodal coordinate formulation (ANCF) kinematic description. While the proposed ...
    • Spatially-selective cooling by liquid jet impinging orthogonally on a wettability-patterned surface 

      Megaridis, Constantine M.; Ganguly, R.; Mahapatra, P.S.; Ghosh, A.; Koukoravas, T.P. (Elsevier, 2016-04)
      Jet impingement finds application in high-rate cooling because of its numerous merits, which, however, do not include selective directionality. The present study introduces a new configuration employing a wettability-patterning ...
    • Spreading of Carbopol Gels 

      Yarin, A.L.; Klep, N.; Pelot, D.D. (Springer Verlag, 2016-04)
      This work aims to study flows within a wedge at the inclination angles in the 5°–20° range. Flow within a wedge occurs when a Carbopol solution is pulled horizontally by a moving conveyer belt through the wedge apex opening ...
    • Stress-strain dependence for soy-protein nanofiber mats 

      Khansari, S.; Sinha-Ray, S.; Yarin, A. L.; Pourdeyhimi, B. (American Institute of Physics, 2012-02)
      Soy protein=nylon 6 monolithic and core-shell nanofibers were solution-blown and collected on a rotating drum as fiber mats. Tensile tests of rectangular strips of these mats revealed their stress-strain dependences. These ...
    • Superhydrophobic-Superhydrophilic Binary Micropatterns by Localized Thermal Treatment of Polyhedral Oligomeric Silsesquioxane (POSS)-Silica Films 

      Schutzius, Thomas M.; Bayer, Ilker S.; Jursich, Gregory M.; Das, Arindam; Megaridis, Constantine M. (Royal Society of Chemistry, 2012-06)
      Surfaces patterned with alternating (binary) superhydrophobic-superhydrophilic regions can be found naturally, offering a bio-inspired template for efficient fluid collection and management technologies. We describe a ...
    • Superoleophobic and conductive carbon nanofiber/fluoropolymer composite films 

      Das, Arindam; Schutzius, Thomas M.; Bayer, Ilker S.; Megaridis, Constantine M. (Elsevier, 2012-03)
      A solution-based, large-area coating procedure is developed to produce conductive polymer composite films consisting of hollow-core carbon nanofibers (CNFs) and a fluoroacrylic copolymer available as a water-based dispersion. ...