1. RECENDT

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    1. Mentioned In 27 Articles

    2. Characterising kiwifruit (Actinidia sp.) near skin cellular structures using optical coherence tomography

      Characterising kiwifruit (Actinidia sp.) near skin cellular structures using optical coherence tomography
      Pre-harvest growing conditions during the development of fruit have impacts on fruit quality at the time of harvest and during storage. These impacts may result in differences in the skin properties of the fruit and some sub-surface cellular structural changes, which have potential effects on postharvest fruit quality and storability. Optical coherence tomography (OCT) is a non-destructive imaging method that enables acquisition of three-dimensional (3D) images of sub-surface structures of ...
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    3. In-Line Monitoring of a Pharmaceutical Pan Coating Process by Optical Coherence Tomography

      In-Line Monitoring of a Pharmaceutical Pan Coating Process by Optical Coherence Tomography
      This work demonstrates a new in-line measurement technique for monitoring the coating growth of randomly moving tablets in a pan coating process. In-line quality control is performed by an optical coherence tomography (OCT) sensor allowing nondestructive and contact-free acquisition of cross-section images of film coatings in real time. The coating thickness can be determined directly from these OCT images and no chemometric calibration models are required for quantification. Coating thickness ...
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    4. Multimodal noncontact photoacoustic and optical coherence tomography imaging using wavelength-division multiplexing

      Multimodal noncontact photoacoustic and optical coherence tomography imaging using wavelength-division multiplexing
      We present multimodal noncontact photoacoustic (PA) and optical coherence tomography (OCT) imaging. PA signals are acquired remotely on the surface of a specimen with a Mach-Zehnder interferometer. The interferometer is realized in a fiber-optic network using a fiber laser at 1550 nm as the source. In the same fiber-optic network, a spectral-domain OCT system is implemented. The OCT system utilizes a supercontinuum light source at 1310 nm and a spectrometer ...
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    5. Optical coherence tomography based particle image velocimetry (OCT-PIV) of polymer flows

      Optical coherence tomography based particle image velocimetry (OCT-PIV) of polymer flows
      The measurement of spatially resolved velocity distributions is crucial for modelling flow and for understanding properties of materials produced in extrusion processes. Traditional methods for flow visualization such as particle image velocimetry (PIV) rely on optically transparent media and cannot be applied to turbid polymer melts. Here we present optical coherence tomography as an imaging technique for PIV data processing that allows for measuring a sequence of time resolved images ...
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    6. Automated pharmaceutical tablet coating layer evaluation of optical coherence tomography images

      Automated pharmaceutical tablet coating layer evaluation of optical coherence tomography images
      Film coating of pharmaceutical tablets is often applied to influence the drug release behaviour. The coating characteristics such as thickness and uniformity are critical quality parameters, which need to be precisely controlled. Optical coherence tomography (OCT) shows not only high potential for off-line quality control of film-coated tablets but also for in-line monitoring of coating processes. However, an in-line quality control tool must be able to determine coating thickness measurements ...
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    7. Calibration-free in-line monitoring of pellet coating processes via optical coherence tomography

      Calibration-free in-line monitoring of pellet coating processes via optical coherence tomography
      The paper presents a new in-line measurement technique for determining the coating thickness and uniformity of pharmaceutical pellets during film-coating in a fluid-bed apparatus. Non-destructive and contact-free process monitoring was performed via an optical coherence tomography (OCT) sensor providing cross-section images. Through the OCT measurements, the coating thickness could be determined directly, without a chemometric calibration model required for the quantification. The direct integration of the OCT sensor head into ...
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    8. Real-time data processing for in-line monitoring of a pharmaceutical coating process by optical coherence tomography

      Real-time data processing for in-line monitoring of a pharmaceutical coating process by optical coherence tomography
      Coating of tablets is a widely applied unit operation in the pharmaceutical industry. Thickness and uniformity of the coating layer are crucial for efficacy as well as for compliance. Not only due to different initiatives it is thus essential to monitor and control the coating process in-line. Optical coherence tomography (OCT) was already shown in previous works to be a suitable candidate for in-line monitoring of coating processes. However, to ...
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    9. Optical coherence tomography for non-destructive analysis of coatings in pharmaceutical tablets

      Optical coherence tomography for non-destructive analysis of coatings in pharmaceutical tablets
      Tablet coating is a common pharmaceutical technique to apply a thin continuous layer of solid on the top of a tablet or a granule containing active pharmaceutical ingredients (APIs). Coating thickness and homogeneity are critical parameters regarding the drug release rate, and consequently a direct or indirect monitoring strategy of these critical process parameters is essential. With the aid of Optical Coherence Tomography (OCT) it is not only possible to ...
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  2. About RECENDT

    RECENDT

    RECENDT (Research Center for Non Destructive Testing) GmbH is based in Linz / Upper Austria and is an internationally well recognized Research Center for Non Destructive Testing and material characterization. The company is a 2009 – spin-off from the Upper Austrian Research (UAR) where the technological expertise has been built up since the year 2000. Shareholders are still the UAR, the Johannes Kepler University Linz (JKU) and the Upper Austrian University of Applied Science (FH OOE).