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933 results
  • Super-condenser enables labelfree nanoscopy. [Journal Article]
    Opt Express 2019; 27(18):25280-25292Ströhl F, Opstad IS, … Kaminski CF
  • Labelfree nanoscopy encompasses optical imaging with resolution in the 100 nm range using visible wavelengths. Here, we present a labelfree nanoscopy method that combines coherent imaging techniques with waveguide microscopy to realize a super-condenser featuring maximally inclined coherent darkfield illumination with artificially stretched wave vectors due to large refractive indices of the empl…
  • A comparison of ear-canal-reflectance measurement methods in an ear simulator. [Journal Article]
    J Acoust Soc Am 2019; 146(2):1350Nørgaard KR, Charaziak KK, Shera CA
  • Ear-canal reflectance has been researched extensively for diagnosing conductive hearing disorders and compensating for the ear-canal acoustics in non-invasive measurements of the auditory system. Little emphasis, however, has been placed on assessing measurement accuracy and variability. In this paper, a number of ear-canal-reflectance measurement methods reported in the literature are utilized a…
  • Dielectric and Thermal Conductivity of Epoxy Resin Impregnated Nano-h-BN Modified Insulating Paper. [Journal Article]
    Polymers (Basel) 2019; 11(8)Yang H, Chen Q, … Ning X
  • Epoxy resin-impregnated insulation paper (RIP) composites are used as the inner insulation of dry condenser bushing in the ultra-high voltage direct current (UHVDC) power transmission system. To improve the dielectric properties and heat conductivity of RIP, hexagonal boron nitride (h-BN) nano-flakes are added to the insulation paper at concentrations of 0-50 wt % before impregnation with pure ep…
  • Nanosecond electron holography by interference gating. [Journal Article]
    Ultramicroscopy 2019; 206:112824Wagner T, Niermann T, … Lehmann M
  • The interference gating is a novel method for robust time-resolved electron holographic measurements by directly switching the interference. Here, a new arrangement is presented in which a biprism in the condenser aperture as a fast electric phase shifter is used to control the interference pattern. High-frequency stimulation of the electric phase shifter in the gigahertz range are performed and …
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