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Academic literature on the topic 'Scanner'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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Journal articles on the topic "Scanner"

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Burde, Alexandru Victor, Marius Manole, Radu-Septimiu Campian, Cosmin Sinescu, and Sorana Baciu. "In vitro Comparison of Accuracy of Two Scanners Used in Dental Medicine." Revista de Chimie 70, no. 7 (2019): 2344–46. http://dx.doi.org/10.37358/rc.19.7.7336.

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This experimental study aims to highlight and compare the resolution and accuracy (trueness and fidelity) of an intraoral scanner and a laboratory scanner. In order to achieve the aim of this study, an experimental model consisting of a die with a standard preparation for a porcelain-fused to metal crown was manufactured from a physiognomic polymethylmethacrylate resin. The experimental model was scanned with an industrial CT to obtain the virtual reference model. Then, the die was scanned 15 times with each scanner. In order to asses trueness, comparisons were made with the virtual reference

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Bohner, Lauren, Daniel Habor, Klaus Radermacher, Stefan Wolfart, and Juliana Marotti. "Scanning of a Dental Implant with a High-Frequency Ultrasound Scanner: A Pilot Study." Applied Sciences 11, no. 12 (2021): 5494. http://dx.doi.org/10.3390/app11125494.

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The purpose of this in vitro study was to assess the trueness of a dental implant scanned using an intraoral high-frequency ultrasound prototype and compared with conventional optical scanners. An acrylic resin cast containing a dental implant at position 11 was scanned with a fringe projection 3D sensor for use as a reference dataset. The same cast was scanned 10 times for each group. Ultrasound scanning was performed with a high-frequency probe (42 MHz, aperture diameter of 4 mm and focus length of 8 mm), and 3D images were reconstructed based on the depth of each surface point echo. Optical

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Al-Dulaijan, Yousif A., Haidar Alalawi, Mohammed M. Gad, Faisal D. Al-Qarni, Shaimaa M. Fouda, and Passent Ellakany. "Trueness and precision of complete denture digital impression compared to conventional impression: an in vitro study." PeerJ 13 (February 26, 2025): e19075. https://doi.org/10.7717/peerj.19075.

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Background This study aimed to compare the precision and trueness of digital impressions of the edentulous arch made with different scanners to conventional physical impressions. Methods A total of 40 impressions of a completely edentulous maxillary arch model (n = 10) were made using different digital impressions with an extraoral scanner, E3 3Shape desktop scanner, as the reference scan, intraoral scanner (TRIOS IOS, and Medit IOS) and Vinyl Polysiloxane impressions (VPS) impression using a Computer-Aided Design and Computer-Aided Manufacturing (CAD-CAM) custom tray. The VPS impression was s

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Cai, HongXin, Bing Cheng Zhao, Yueyi Tian, et al. "Design of a Single-Tooth Model and Its Application in Oral Scan System Assessment." Scanning 2021 (March 21, 2021): 1–8. http://dx.doi.org/10.1155/2021/8891396.

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Intraoral scanners have been widely used in the application of dentistry. Accuracy includes trueness and precision; they have an important position in the assessment of intraoral scanners. The existing standard models are divided into the inlay and the crown, but the operation is relatively complicated. In this study, in order to simplify the current standard model, we designed a new integration model to compare the accuracy of two intraoral scanners (CEREC and TRIOS) and an extraoral scanner (SHINING). The coordinate measuring machine measured value is the gold standard. Values of the length

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Rotar, Raul Nicolae, Anca Jivanescu, Codruta Ille, et al. "Trueness and Precision of Two Intraoral Scanners: A Comparative In Vitro Study." Scanning 2019 (October 21, 2019): 1–6. http://dx.doi.org/10.1155/2019/1289570.

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The aim of this study was to evaluate the accuracy of two intraoral scanners used in the dental office. A molar fixed in a typodont was prepared for a ceramic onlay. The preparation was scanned using a high-resolution scanner (reference scanner) and saved as stereolithography (STL) format. The prepared resin molar was scanned again using the intraoral scanners, and all the scans were saved as well in STL format. All STL files were compared using metrology software (Geomagic Control X). Overlapping the meshes allowed the assessment of the scans in terms of trueness and precision. Based on the r

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Velu, Juliëtte F., Erik Groot Jebbink, Jean-Paul PM de Vries, Job AM van der Palen, Cornelis H. Slump, and Robert H. Geelkerken. "A phantom study for the comparison of different brands of computed tomography scanners and software packages for endovascular aneurysm repair sizing and planning." Vascular 26, no. 2 (2017): 198–202. http://dx.doi.org/10.1177/1708538117726648.

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Objectives Correct sizing of endoprostheses used for the treatment of abdominal aortic aneurysms is important to prevent endoleaks and migration. Sizing requires several steps and each step introduces a possible sizing error. The goal of this study was to investigate the magnitude of these errors compared to the golden standard: a vessel phantom. This study focuses on the errors in sizing with three different brands of computed tomography angiography scanners in combination with three reconstruction software packages. Methods Three phantoms with a different diameter, altitude and azimuth were

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Ruzgienė, Birutė, Renata Bagdžiūnaitė, and Vilma Ruginytė. "SCANNING AERIAL PHOTOS USING A NON-PROFESSIONAL SCANNER." Geodesy and Cartography 38, no. 3 (2012): 118–21. http://dx.doi.org/10.3846/20296991.2012.728901.

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For scanning analog aerial photographs, digital photogrammetry requires specific and expensive photogrammetric scanners. However, we only have a simple A4 format scanner useful for solving some special photogrammetric tasks applied for analyzing the possibilities of scanning photographic material. The paper investigates the peculiarities of scanning analog aerial photos using the scanner processing pictures smaller than an A4 format. The achieved results are compared with digital data obtained using a professional photogrammetric scanner. Experimental photogrammetric measurements have showed t

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Carvalho, William S., Viviane de S. M. Almeida, Leonardo Provedel, Anderson da S. Maciel, and Viviane A. Sarmento. "Volumetric Evaluation of 3D Models Generated by Different Surface Treatment Protocols." European Journal of Dental and Oral Health 3, no. 5 (2022): 5–8. http://dx.doi.org/10.24018/ejdent.2022.3.5.229.

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The objective of this study was to compare the volume of three-dimensional (3D) models generated by different scanners and computational modeling protocols. Eight dry mandibles were scanned by five different computed tomography (CT) scanners and by a 3D-scanner. Three-dimensional models were generated, received different surface treatment processes, and the final volume of the 3D models was compared. The results show that there was no significant difference among the volume of the 3D models generated by the different CT scanners and surface treatment techniques, however, the model volume gener

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Rabah, Chaima Ben, Gouenou Coatrieux, and Riadh Abdelfattah. "Boosting up Source Scanner Identification Using Wavelets and Convolutional Neural Networks." Traitement du Signal 37, no. 6 (2020): 881–88. http://dx.doi.org/10.18280/ts.370601.

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In this paper, we present a conceptually innovative method for source scanner identification (SSI), that is to say, identifying the scanner at the origin of a scanned document. Solutions from literature can distinguish between scanners of different brands and models but fail to differentiate between scanners of the same models. To overcome this issue, the approach we propose takes advantage of a convolutional neural network (CNN) to automatically extract intrinsic scanner features from the distribution of the coefficients of the diagonal high-frequency (HH) sub-band of the discrete stationary

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Nestle, U., S. Kremp, D. Hellwig, et al. "Multi-centre calibration of an adaptive thresholding method for PET-based delineation of tumour volumes in radiotherapy planning of lung cancer." Nuklearmedizin 51, no. 03 (2012): 101–10. http://dx.doi.org/10.3413/nukmed-0452-11-12.

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SummaryPurpose: To evaluate the calibration of an adaptive thresholding algorithm (contrastoriented algorithm) for FDG PET-based delineation of tumour volumes in eleven centres with respect to scanner types and image data processing by phantom measurements. Methods: A cylindrical phantom with spheres of different diameters was filled with FDG realizing different signal-to-background ratios and scanned using 5 Siemens Biograph PET/CT scanners, 5 Philips Gemini PET/CT scanners, and one Siemens ECAT-ART PET scanner. All scans were analysed by the contrast-oriented algorithm implemented in two dif

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Dissertations / Theses on the topic "Scanner"

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Käck, Adam. "Content Scanner." Thesis, Karlstads universitet, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-39208.

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von, Keyserlingk Erik. "Electromagnetic Compatibility Scanner." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285568.

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With the increasing amount of wireless devices in use today. All from Bluetooth headphonesto smart fridges, which communicates wirelessly to a server or phone. The needfor the radio frequency spectrum to be free from disturbances is necessarily. There aretoday regulations stating how much a device is allowed to transmit into the radio frequencyspectrum, this is to prevent and control disturbances from electronics whichdoes not intend to transmit into the radio frequency domain. In this report a setupis proposed to conduct near eld scanning of planar surfaces such as PCBs. This tolocate if a tr

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Bae, Kwang-Ho. "Automated registration of unorganised point clouds from terrestrial laser scanners." Thesis, Curtin University, 2006. http://hdl.handle.net/20.500.11937/946.

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Laser scanners provide a three-dimensional sampled representation of the surfaces of objects. The spatial resolution of the data is much higher than that of conventional surveying methods. The data collected from different locations of a laser scanner must be transformed into a common coordinate system. If good a priori alignment is provided and the point clouds share a large overlapping region, existing registration methods, such as the Iterative Closest Point (ICP) or Chen and Medioni’s method, work well. In practical applications of laser scanners, partially overlapping and unorganised poin

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Griesser, Andreas. "Oscar : the opportunistic scanner /." Konstanz : Hartung-Gorre Verlag, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17376.

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Olsson, Karin, and Therese Persson. "Shape from Silhouette Scanner." Thesis, Linköping University, Department of Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1348.

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<p>The availability of digital models of real 3D objects is becoming more and more important in many different applications (e-commerce, virtual visits etc). Very often the objects to be represented cannot be modeled by means of the classical 3D modeling tools because of the geometrical complexity or color texture. In these cases, devices for the automatic acquisition of the shape and the color of the objects (3D scanners or range scanners) have to be used. </p><p>The scanner presented in this work, a Shape from silhouette scanner, is very cheap (it is based on the use of a simple digital came

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Müller, Thomas. "Was leisten Port-Scanner?" Universitätsbibliothek Chemnitz, 2000. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200000309.

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Gemeinsamer Workshop von Universitaetsrechenzentrum und Professur Rechnernetze und verteilte Systeme (Fakultaet fuer Informatik) der TU Chemnitz. Workshop-Thema: Infrastruktur der ¨Digitalen Universitaet¨ Port-Scanner sind Software-Werkzeuge, die benutzt werden, um Informationen über Rechnersysteme im Internet zu ermitteln. Häufig werden solche Werkzeuge von Angreifern benutzt, um verwundbare Rechnersysteme zu finden. Der Vortrag stellt die Leistungsfähigkeit und die verwendeten Techniken von frei verfügbaren Port-Scannern dar. Weiterhin werden Werkzeuge vorgestellt, mit denen Port-Scan-Vorg

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Eliasson, Algot, and Adam Smith. "Utveckling av ID-scanner." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28702.

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Griesser, Andreas. "OSCAR - the oppportunistic scanner." Konstanz Hartung-Gorre, 2006. http://d-nb.info/986277924/04.

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SZABLA, PIERRE. "Pancreatites aigues et scanner." Lille 2, 1988. http://www.theses.fr/1988LIL2M138.

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Bae, Kwang-Ho. "Automated registration of unorganised point clouds from terrestrial laser scanners." Curtin University of Technology, Department of Spatial Sciences, 2006. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=16596.

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Laser scanners provide a three-dimensional sampled representation of the surfaces of objects. The spatial resolution of the data is much higher than that of conventional surveying methods. The data collected from different locations of a laser scanner must be transformed into a common coordinate system. If good a priori alignment is provided and the point clouds share a large overlapping region, existing registration methods, such as the Iterative Closest Point (ICP) or Chen and Medioni’s method, work well. In practical applications of laser scanners, partially overlapping and unorganised poin

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Books on the topic "Scanner"

1

United States. Selective Service System. Training Division., ed. BMH scanner. Selective Service System, Training Division, 1996.

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United States. Selective Service System. Training Division., ed. BMH scanner. Selective Service System, Training Division, 1996.

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United States. Selective Service System. Training Division, ed. BMH scanner. Selective Service System, Training Division, 1996.

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Barker, Larry M. Scanner radio guide. HighText, 1993.

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K, Dick Philip. A scanner darkly. Mariner Books/Houghton Mifflin Harcourt, 2011.

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K, Dick Philip. A scanner darkly. Vintage Books, 1991.

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Widmer, Larry F. Pennsylvania scanner guide. Lee/Francis by Mail, 1985.

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K, Dick Philip. A scanner darkly. Pantheon Books, 2006.

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Cheek, Bill. The ultimate scanner. Index Publishing Group, 1995.

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K, Dick Philip. A scanner darkly. Voyager, 1996.

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Book chapters on the topic "Scanner"

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Nyman, Mattias. "Scanner." In X.media.press. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18244-0_17.

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Nyman, Mattias. "Scanner." In Edition PAGE. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-662-00768-6_6.

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Nyman, Mattias. "Scanner." In 4 Farben — ein Bild. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-97894-4_10.

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Weik, Martin H. "scanner." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_16635.

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Bernaschek, Gerhard, Josef Deutinger, and Alfred Kratochwil. "Scanner Types." In Endosonography in Obstetrics and Gynecology. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-74111-1_4.

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Bellocchio, Francesco, N. Alberto Borghese, Stefano Ferrari, and Vincenzo Piuri. "Scanner systems." In 3D Surface Reconstruction. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5632-2_2.

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Astarita, Tommaso, and Giovanni Maria Carlomagno. "IR Scanner." In Infrared Thermography for Thermo-Fluid-Dynamics. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29508-9_3.

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Behr, Volker C. "Scanner Components." In Methods in Molecular Biology. Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-219-9_4.

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Weik, Martin H. "hand scanner." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_8195.

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Weik, Martin H. "visual scanner." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_20877.

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Conference papers on the topic "Scanner"

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Xiang, L. Q., and Charles S. Ih. "Comparisons of different 2-D laser beam scanners." In OSA Annual Meeting. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.tuo7.

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For many scanning applications, the scan line straightness, linearity, and influence of mechanical wobble and eccentricity on a scanner's performance are important. Some different 2-D scanners are compared on a common specification of a total resolution of 6.25 million pixels. According to our analyses, the polygon-mirror system offers the best straightness but is the most sensitive to mechanical wobble and eccentricity.1 Different holographic 2-D scanners are also investigated, and their performances depends strongly on design parameters and on the configurations. The scan line straightness o

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Kuiper, Stefan, and Georg Schitter. "MIMO Self-Sensing Control of a Piezoelectric Tube Scanner." In ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2785.

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Piezoelectric tube scanners are commonly used in Scanning Probe Microscopy (SPM) to provide the scanning motion of the tip or sample. Oscillations due to the weakly damped resonances of the scanner are a major source of image distortion in SPM-imaging. In this contribution, multiple input-multiple output (MIMO) self-sensing actuation of a piezoelectric tube scanner is presented, allowing to actively dampen the scanner oscillations. By connecting the tube scanner in a capacitive bridge-circuit, the piezoelectric tube is simultaneously used as a sensor and actuator. In order to enable the use of

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Khanna, Nitin, and Edwar Delp. "Source scanner identification for scanned documents." In 2009 First IEEE International Workshop on Information Forensics and Security (WIFS). IEEE, 2009. http://dx.doi.org/10.1109/wifs.2009.5386462.

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Kangisser, Steven, Abhishek Shankar, Javier Irizarry, and Harnish Sharma. "Visualization enhancements to facilitate the use of digital demonstrators for instructional applications." In 14th International Conference on Applied Human Factors and Ergonomics (AHFE 2023). AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1003164.

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This paper investigates a novel approach to instruction in the use of complex instruments. A laser scanner is employed as a test bed for lessons which can then be more broadly implemented. Laser scanners use optical signals from reflected light. These signals are then processed to create a 3D point cloud of the scanned object or environment. The point clouds can be used to derive accurate information about the mapped area's dimensions. Laser Scanners are widely used in aerospace, manufacturing, law enforcement, agriculture, and construction industries to capture details and create models of ex

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Mukhtar, Moeed, Jonghyon Yi, and George T. C. Chiu. "Color Registration Error Reduction in Document Scanner Using Iterative Velocity Command Synthesis." In ASME 2008 Dynamic Systems and Control Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/dscc2008-2225.

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Document scanners enjoy widespread use for converting hardcopy documents into digital images. Improving image quality is a key issue for scanner manufacturers. This paper proposes an ILC based step timing synthesis technique for reducing color registration error in stepper motor driven document scanners with no real-time feedback. To quantify color registration error, a line pattern image based technique is devised. Based on the measured color registration error signal, a single iteration convergent iterative learning control scheme is proposed to synthesize a stepper motor step timing command

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Hasegawa, Shin-ya, Shigetake Iwata, Shigeo Kayashima, et al. "Holographic disk line scanner using a holoplate." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.wo5.

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An achromatized all-holographic straight-line scanner for use in laser diode printers has been developed. The scanner consists of a compact holographic disk and a new holoplate and needs no other auxiliary optics to scan and focus the laser beam. Conventional holographic scanners having optical power suffer from scanning-beam aberration and chromatic aberration caused by mode hopping of the laser diode. To make a low-cost holographic line scanner more practical, resolution as high as 400 dpi must be attained. Moreover, scanners free from chromatic aberrations, especially in scan direction, nee

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Vieira, Miguel, and Kenji Shimada. "Segmentation of Noisy Laser-Scanner Generated Meshes With Piecewise Polynomial Approximations." In ASME 2004 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/detc2004-57475.

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Laser scanners offer a fast and simple way of collecting large amounts of geometric data from real-world objects. Although this aspect makes them attractive for design and reverse engineering, the laser-scanner data is often noisy and not partitioned into meaningful surfaces. A good partitioning, or segmentation, of the scanner data has uses including feature detection, surface boundary generation, surface fitting, and surface reconstruction. This paper presents a method for segmenting noisy three-dimensional surface meshes created from laser-scanned data into distinct regions closely approxim

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Zhuang, B. H., Charles S. Ih, and L. Q. Xiang. "Two-dimensional scanner using pseudoplane holograms." In OSA Annual Meeting. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.fh1.

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Plane grating (plane hologram) scanners are easy to make and to operate and can produce very straight scan lines in a specific operation condition.1 This limits their operation to 1-D scanning. For some applications, a 2-D scanning is more convenient and/or desirable. We describe a technique for improving the plane hologram scanner so that straight scan lines can be obtained over wider operating conditions. If the holograms are made with a spherical wave and a plane wave instead of two plane waves, the scan line straightness can be sufficiently improved for 2-D operation. By adjusting the dive

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Schmitz, Anne, and Davide Piovesan. "A Novel Methodology to Determine Optimal Active Marker Scanner Placement." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70285.

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Motion capture is a common technology used to measure human motion. One key aspect to collecting an ample amount of accurate data is maximizing the motion capture volume. This maximization is typically gone by a trial and error method. The purpose of this study was to develop a better method to determine the camera placement to maximize the captured volume. Two active marker scanners were methodically placed at various locations around a circle centered on a forceplate. The scanner placements of optimal coverage were defined as the position of the scanners when the area of overlap between the

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Kobayashi, Takeshi, Jiunnjye Tsaur, and Ryutaro Maeda. "Development of 1D Optical Micro Scanner Driven by Piezoelectric Actuators." In ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ipack2005-73431.

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1D optical micro scanners driven by piezoelectric actuators have designed, simulated, fabricated and tested. The newly designed micro scanners have a structure that rotation bars, hinges and PZT cantilevers support a square mirror (1mm × 1mm). Flat-structured micro scanners have been fabricated from Pt/PZT/Pt/Ti/SiO2/SOI(Si/SiO2/Si) multi-layered structure through conventional MEMS micro fabrication technologies. The micro scanner driven at 10 V showed an optical scan angle of 1.5 degree for the static actuation (60 Hz) and of 13 degree for the resonant actuation (4825 Hz), respectively.

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Reports on the topic "Scanner"

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Steves, Michelle, Brian Stanton, Mary Theofanos, Dana Chisnell, and Hannah Wald. Fingerprint Scanner Affordances. National Institute of Standards and Technology, 2013. http://dx.doi.org/10.6028/nist.ir.7944.

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Xia, Sibei, Siming Guo, Jiayin Li, and Cynthia Istook. Comparison of Body Measuring Techniques: Whole Body Scanner, Handheld Scanner, and Tape Measure. Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/itaa_proceedings-180814-1881.

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Chiu, David Y., and Troy Alexander. Development of a Profiling Scanner. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada486755.

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Palmer, Donald D., Wood Jr., and Nancy L. Mobile Automated Scanner System (MAUS). Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada366930.

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Griffith, G. W., and H. O. Menlove. Design study for MOX fuel rod scanner for ATR fuel fabrication. Phase I: Design of active neutron scanner. Phase II: Design of passive neutron scanner. Phase III: Design of passive gamma-ray scanner. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/534497.

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Mercer, David J. Tomographic Gamma Scanner Experience: Three Cases. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1136107.

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Cheok, Geraldine S., Stefan Leigh, and Andrew Rukhin. Calibration experiments of a laser scanner. National Institute of Standards and Technology, 2002. http://dx.doi.org/10.6028/nist.ir.6922.

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Canavan, G., J. Moses, and R. Smith. Hyper-spectral scanner design and analysis. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/249251.

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Karimi, S. Spatial Resolution of a microCT Scanner. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/2280898.

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Fischer, Gregory. Robotic Prostate Biopsy in Closed MRI Scanner. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada502842.

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