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NSYSU
1.
Cai, Li-Zhong.
Application of near-ultraviolet emitters and liquid crystalline semiconductors to light-emitting diodes.
Degree: Master, Electro-Optical Engineering, 2015, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809115-152008
► This thesis investigates the performance of two deep-purple and near-ultraviolet emitter as the emission layer and a discotic liquid-crystalline semiconductor as the hole injection layer…
(more)
▼ This thesis investigates the performance of two deep-purple and
near-
ultraviolet emitter as the emission layer and a discotic liquid-crystalline semiconductor as the hole injection layer in OLED. All the OLEDs are fabricated by thermal evaporation technique. The effect of device structure on the electroluminescence spectrum is also discussed in this study. The deep-purple emitting device with the configuration of ITO/TCTA/EML/TPBi/LiF/Al shows the best performance: EQEmax=1.04%, and Lmax=1210 cd/m2. The
near-
ultraviolet emitting device, with the configuration of ITO/MoO3/EML/PBD/LiF/Al has a maximum EQE=1.41%. The half of the emission spectrum locates in the
ultraviolet zone, and the half width of the spectrum is much narrower than a conventional UV device.
In the study of utilizing discotic liquid crystalline semiconductor as hole injection/transport layer in OLEDs, the structure is ITO/DiDPQ10/TAPC/mcP:8wt% FIrpic/TmPyPB/LiF/Al. The performance of the DiDPQ10 device is not as good as the PEDOT:PSS device. However, it shows much better efficiency roll-off than the PEDOT:PSS device. Also, the HOMO level of the hole transporting material TAPC is not well aligned with it of DiDPQ10. Therefore, the performance of the modified device configuration using a hole transporting material with a much matched HOMO level would be potentially improved.
Advisors/Committee Members: Li-Yin Chen (committee member), Tsung-Hsien Lin (chair), Chi-Wi Ong (chair).
Subjects/Keywords: organic light-emitting diodes; deep-purple; near-ultraviolet; discotic liquid crystalline; hole injection layer; hole transporting layer
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APA (6th Edition):
Cai, L. (2015). Application of near-ultraviolet emitters and liquid crystalline semiconductors to light-emitting diodes. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809115-152008
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cai, Li-Zhong. “Application of near-ultraviolet emitters and liquid crystalline semiconductors to light-emitting diodes.” 2015. Thesis, NSYSU. Accessed January 27, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809115-152008.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cai, Li-Zhong. “Application of near-ultraviolet emitters and liquid crystalline semiconductors to light-emitting diodes.” 2015. Web. 27 Jan 2021.
Vancouver:
Cai L. Application of near-ultraviolet emitters and liquid crystalline semiconductors to light-emitting diodes. [Internet] [Thesis]. NSYSU; 2015. [cited 2021 Jan 27].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809115-152008.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cai L. Application of near-ultraviolet emitters and liquid crystalline semiconductors to light-emitting diodes. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0809115-152008
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McMaster University
2.
Grangé, Danielle.
The Spectrum of Cyclohexanone.
Degree: MSc, 1971, McMaster University
URL: http://hdl.handle.net/11375/17857
► The near ultraviolet absorption spectra of cyclohexanone, cyclohexanone α, α, α', α'd₄ and cyclohexanone d₁₀ have been recorded and analysed under low and high resolution.…
(more)
▼ The near ultraviolet absorption spectra of cyclohexanone, cyclohexanone α, α, α', α'd₄ and cyclohexanone d₁₀ have been recorded and analysed under low and high resolution. The vibrational and rotational structure accompanying the electronic singlet-singlet ṉ→π* transition have been analysed. Some complementary information has been obtained from the infrared vapour spectrum of cyclohexanones. The geometries of the ground and first excited state have been determined. In the excited state configuration, the oxygen atom was bent out of the plane of the three adjacent carbon atoms by about 30º, and the carbon oxygen bond increases by 0.08 Å between the ground state and the excited state. Some ring modes are strongly active in the electronic spectra of the three isomers. This may indicate some coupling between the carbonyl group and the ring. The results obtained by band contour analysis are consistent with those obtained by calculation of a double minimum potential function, as well as those obtained in previous work on related molecules.
Thesis
Master of Science (MSc)
Advisors/Committee Members: King, Gerald W., Physics.
Subjects/Keywords: physics; spectrum; cyclohexanone; near ultraviolet absorption; infrared spectrum
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APA ·
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APA (6th Edition):
Grangé, D. (1971). The Spectrum of Cyclohexanone. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/17857
Chicago Manual of Style (16th Edition):
Grangé, Danielle. “The Spectrum of Cyclohexanone.” 1971. Masters Thesis, McMaster University. Accessed January 27, 2021.
http://hdl.handle.net/11375/17857.
MLA Handbook (7th Edition):
Grangé, Danielle. “The Spectrum of Cyclohexanone.” 1971. Web. 27 Jan 2021.
Vancouver:
Grangé D. The Spectrum of Cyclohexanone. [Internet] [Masters thesis]. McMaster University; 1971. [cited 2021 Jan 27].
Available from: http://hdl.handle.net/11375/17857.
Council of Science Editors:
Grangé D. The Spectrum of Cyclohexanone. [Masters Thesis]. McMaster University; 1971. Available from: http://hdl.handle.net/11375/17857

University College Cork
3.
Chen, Jun.
Broadband optical cavity absorption spectroscopy in the near-ultraviolet: applications in atmospheric chemistry.
Degree: 2011, University College Cork
URL: http://hdl.handle.net/10468/435
► A novel spectroscopic method, incoherent broadband cavity enhanced absorption spectroscopy (IBBCEAS), has been modified and extended to measure absorption spectra in the near-ultraviolet with high…
(more)
▼ A novel spectroscopic method, incoherent broadband cavity enhanced absorption
spectroscopy (IBBCEAS), has been modified and extended to measure absorption
spectra in the
near-
ultraviolet with high sensitivity. The
near-
ultraviolet region
extends from 300 to 400 nm and is particularly important in tropospheric
photochemistry; absorption of
near-UV light can also be exploited for sensitive trace
gas measurements of several key atmospheric constituents. In this work, several
IBBCEAS instruments were developed to record reference spectra and to measure
trace gas concentrations in the laboratory and field. An IBBCEAS instrument was
coupled to a flow cell for measuring very weak absorption spectra between 335 and
375 nm. The instrument was validated against the literature absorption spectrum of
SO2. Using the instrument, we report new absorption cross-sections of O3, acetone,
2-butanone, and 2-pentanone in this spectral region, where literature data diverge
considerably owing to the extremely weak absorption. The instrument was also
applied to quantifying low concentrations of the short-lived radical, BrO, in the
presence of strong absorption by Br2 and O3. A different IBBCEAS system was
adapted to a 4 m3 atmosphere simulation chamber to record the absorption
cross-sections of several low vapour pressure compounds, which are otherwise
difficult to measure. Absorption cross-sections of benzaldehyde and the more volatile
alkyl nitrites agree well with previous spectra; on this basis, the cross-sections of
several nitrophenols are reported for the first time. In addition, the instrument was
also used to study the optical properties of secondary organic aerosol formed
following the photooxidation of isoprene. An extractive IBBCEAS instrument was
developed for detecting HONO and NO2 and had a sensitivity of about 10-9 cm-1.
This instrument participated in a major international intercomparison of HONO and
NO2 measurements held in the EUPHORE simulation chamber in Valencia, Spain,
and results from that campaign are also reported here.
Advisors/Committee Members: Venables, Dean S., SFI.
Subjects/Keywords: BBCEAS; Near-ultraviolet; Cross-section; Broadband cavity enhanced absorption spectroscopy; Spectroscopy; Atmospheric chemistry; Spectrum analysis; Absorption spectra
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Chen, J. (2011). Broadband optical cavity absorption spectroscopy in the near-ultraviolet: applications in atmospheric chemistry. (Thesis). University College Cork. Retrieved from http://hdl.handle.net/10468/435
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chen, Jun. “Broadband optical cavity absorption spectroscopy in the near-ultraviolet: applications in atmospheric chemistry.” 2011. Thesis, University College Cork. Accessed January 27, 2021.
http://hdl.handle.net/10468/435.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chen, Jun. “Broadband optical cavity absorption spectroscopy in the near-ultraviolet: applications in atmospheric chemistry.” 2011. Web. 27 Jan 2021.
Vancouver:
Chen J. Broadband optical cavity absorption spectroscopy in the near-ultraviolet: applications in atmospheric chemistry. [Internet] [Thesis]. University College Cork; 2011. [cited 2021 Jan 27].
Available from: http://hdl.handle.net/10468/435.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chen J. Broadband optical cavity absorption spectroscopy in the near-ultraviolet: applications in atmospheric chemistry. [Thesis]. University College Cork; 2011. Available from: http://hdl.handle.net/10468/435
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
4.
Zhang, Liang.
Multimodal Optical Detection of Early Childhood Caries.
Degree: PhD, 2013, University of Washington
URL: http://hdl.handle.net/1773/24177
► As prevalence of dental caries in children rises worldwide, there is an increasing need for a safe, easy to use and cost-effective technique to detect…
(more)
▼ As prevalence of dental caries in children rises worldwide, there is an increasing need for a safe, easy to use and cost-effective technique to detect and identify childhood caries at an early stage where remineralization of the tooth is possible and damage may be reversed. It would be beneficial to have a noninvasive multimodal optical device for diagnosing early stage caries in vivo. In this research, the author develops and proposes an optical device which utilizes multiple modalities to screen for, and diagnose early stage dental caries. A clinical prototype device is developed and tested in a clinical setting to verify its suitability for in vivo use. To develop a screening technique that can be used to alert the clinician to an area of suspected caries, an ultrathin scanning fiber endoscope (SFE) was used. Enhanced image resolution of tooth surfaces was obtained using a short-wavelength 405 nm illumination laser using the SFE. In addition, enamel with demineralization of varying depths were also imaged with 405 nm, 444 nm, 532 nm, and 635 nm illumination lasers. Contrast between sound and demineralized enamel was quantitatively computed for each imaging modality. For shallow demineralization, the image contrast with respect to sound enamel was greatest for the 405 nm reflected image. Furthermore, images obtained with a shallow penetration depth illumination laser (405 nm) provided the greatest detail of surface enamel topography since the reflected light does not contain contributions from light reflected from greater depths within the enamel tissue. Multilayered Monte Carlo simulations were also performed to confirm the experimental results. To quantitatively determine health of the tooth enamel, the author developed a simple and robust autofluorescence (AF) technique that uses the dental AF spectra from 405 nm and 532 nm laser excitation and computes a ratio of the integrated areas of the spectra. The 405/532 nm AF ratio was obtained from healthy as well as unhealthy enamel regions of teeth. A clear distinction between the ratios for healthy enamel and unhealthy enamel was seen. The author has developed a multimodal optical clinical prototype by combining the high contrast and high surface resolution SFE imaging modality with the quantitative AF modality. The device can be used to quickly image and screen for any signs of demineralized enamel by obtaining high-resolution and high-contrast surface images using a 405-nm laser as the illumination source, as well as obtaining autofluorescence and bacterial fluorescence images. When a suspicious region of demineralization is located, the device also performs dual laser fluorescence spectroscopy using 405-nm and 532-nm laser excitation. An autofluorescence ratio of the two excitation lasers is computed and used to quantitatively diagnose enamel health. The device was tested on in vivo patients as well as extracted teeth with clinically diagnosed carious lesions. The device was able to provide detailed images which highlighted the lesions identified by…
Advisors/Committee Members: Seibel, Eric J (advisor).
Subjects/Keywords: autofluorescence; caries detection; laser-induced fluorescence; multimodal device; near ultraviolet; scanning fiber endoscope; Biomedical engineering; bioengineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhang, L. (2013). Multimodal Optical Detection of Early Childhood Caries. (Doctoral Dissertation). University of Washington. Retrieved from http://hdl.handle.net/1773/24177
Chicago Manual of Style (16th Edition):
Zhang, Liang. “Multimodal Optical Detection of Early Childhood Caries.” 2013. Doctoral Dissertation, University of Washington. Accessed January 27, 2021.
http://hdl.handle.net/1773/24177.
MLA Handbook (7th Edition):
Zhang, Liang. “Multimodal Optical Detection of Early Childhood Caries.” 2013. Web. 27 Jan 2021.
Vancouver:
Zhang L. Multimodal Optical Detection of Early Childhood Caries. [Internet] [Doctoral dissertation]. University of Washington; 2013. [cited 2021 Jan 27].
Available from: http://hdl.handle.net/1773/24177.
Council of Science Editors:
Zhang L. Multimodal Optical Detection of Early Childhood Caries. [Doctoral Dissertation]. University of Washington; 2013. Available from: http://hdl.handle.net/1773/24177

Baylor University
5.
Dogra, Jody A.
Multivariate analyses of near-infrared and UV spectral data.
Degree: PhD, Chemistry and Biochemistry., 2009, Baylor University
URL: http://hdl.handle.net/2104/5347
► Various chemometric analyses were applied to spectroscopic data with goals to develop alternative methods that could be employed in government or industrial settings. With the…
(more)
▼ Various chemometric analyses were applied to spectroscopic data with goals to develop alternative methods that could be employed in government or industrial settings. With the concerns of these organizations in mind, the described methods are cost-effective and time-efficient. The first method is aimed at establishing a time of death from skeletal remains—an issue that continues to be difficult for the forensic community. Following death, the skeletal remains undergo changes in chemical composition. This includes the breakdown of protein and the loss of water.
Near-infrared spectroscopy is sensitive to vibrations associated with both protein and water. In the described method,
near-infrared reflectance measurements of aging porcine skeletal remains were correlated to postmortem interval (PMI). Initial studies were conducted to determine the optimum sampling orientation—cross-sectional or surface. Several chemometric approaches were investigated, but the best results were obtained through a scheme involving classification by partial least-squares discriminant analysis (PLS–DA) followed by segmented partial least-squares regression (PLSR). The method was evaluated through independent test sets. The optimized method was able to predict PMI with an average deviation of six days. A brief field study was also conducted and yielded similar results. The second study relates to a present analytical encumbrance faced by the pharmaceutical industry, namely assuring the enantiomeric purity of chiral active pharmaceutical ingredients (APIs). With the rising number of chiral drugs on the market, the analytical burden continues to increase.
Ultraviolet absorption spectral data were correlated to enantiomeric composition by PLSR for solutions containing a chiral analyte and a chiral ionic liquid (IL) as a chiral selector. Test set evaluation gave results of average deviations of ± 4.0–12 units of %D depending on the analyte and chiral IL involved. Finally, a quality control analysis was demonstrated, which follows a classification format where the sample either meets or does not meet the specified requirement regarding enantiomeric purity. Test set evaluation gave results of 97% correct classifications for a threshold of 1% impurity.
Advisors/Committee Members: Busch, Kenneth W. (advisor), Busch, Marianna A. (advisor).
Subjects/Keywords: Chemometrics.; Multivariate analysis.; Near infrared reflectance spectroscopy.; Ultraviolet spectroscopy.; Death – Time of.; Bones – Composition.; Chiral drugs – Analysis.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Dogra, J. A. (2009). Multivariate analyses of near-infrared and UV spectral data. (Doctoral Dissertation). Baylor University. Retrieved from http://hdl.handle.net/2104/5347
Chicago Manual of Style (16th Edition):
Dogra, Jody A. “Multivariate analyses of near-infrared and UV spectral data.” 2009. Doctoral Dissertation, Baylor University. Accessed January 27, 2021.
http://hdl.handle.net/2104/5347.
MLA Handbook (7th Edition):
Dogra, Jody A. “Multivariate analyses of near-infrared and UV spectral data.” 2009. Web. 27 Jan 2021.
Vancouver:
Dogra JA. Multivariate analyses of near-infrared and UV spectral data. [Internet] [Doctoral dissertation]. Baylor University; 2009. [cited 2021 Jan 27].
Available from: http://hdl.handle.net/2104/5347.
Council of Science Editors:
Dogra JA. Multivariate analyses of near-infrared and UV spectral data. [Doctoral Dissertation]. Baylor University; 2009. Available from: http://hdl.handle.net/2104/5347
6.
Verhoeven, Geert.
Beyond conventional boundaries: new technologies, methodologies, and procedures for the benefit of aerial archaeological data acquisition and analysis.
Degree: 2009, Ghent University
URL: http://hdl.handle.net/1854/LU-631969
► Archeologische teledetectie zag een goede eeuw geleden het levenslicht. De data waarmee deze tak van de archeologie zich bezighoudt zijn heel divers, maar alle worden…
(more)
▼ Archeologische teledetectie zag een goede eeuw geleden het levenslicht. De data waarmee deze tak van de archeologie zich bezighoudt zijn heel divers, maar alle worden ze verworven vanaf een zekere hoogte boven de aarde (bijv. foto’s genomen door spionagesatellieten of vanuit een vliegtuig, RADAR-beelden). Een belangrijk deel van de gegenereerde en geanalyseerde archeologische data vormen de zogeheten ‘schuine’ luchtopnamen. Deze foto’s worden meestal door de archeoloog zelf verzameld vanuit een laagvliegend vliegtuig. Op deze manier is het vrij eenvoudig fenomenen op het aardoppervlak in beeld te brengen die vanuit een archeologisch oogpunt interessant lijken.
Ondanks het feit dat actieve archeologische luchtfotografie reeds decennialang zijn waarde heeft bewezen, bleven de gehanteerde technologieën, methodes en procedures tot op de dag van vandaag in grote lijnen dezelfde als diegene die door de pioniers werden ontwikkeld. Weliswaar kwamen er steeds betere filmemulsies op de markt en anno 2009 fotografeert zowat iedereen digitaal, zelden worden beelden gemaakt in andere delen van het spectrum dan het zichtbare licht. Dit doctoraal proefschrift toont aan dat het vrij eenvoudig is om met digitale fotocamera’s opnamen van gereflecteerde onzichtbare stralen te genereren. Meer in het bijzonder focust dit onderzoek op het fotograferen van nabij-infrarode, ‘red edge’ en nabij-ultraviolette straling. Daarnaast voorziet een grondig theoretisch kader in de nodige onderbouwing voor het archeologische gebruik van deze specifieke spectrale banden.
Alvorens de waarde van deze nieuwe technieken en bijhorende procedures wordt behandeld, start dit doctoraat met een inleiding op het Potenza Valley Survey (PVS) project dat sinds 2000 plaats vindt in centraal Adriatisch Italië. Via de kartering van enkele Romeinse steden wordt duidelijk het grote belang van conventionele luchtfotografie in dit project gestaafd alsook de omgeving geschetst waarbinnen dit doctoraal onderzoek werd gevoerd. Nadien wordt het gebruik van een specifiek voor dit onderzoek ontwikkeld telegeleid fotografisch platform geduid. Echter, beelden genereren is één zaak; ze analyseren is iets anders. Daarom legt een derde onderzoeksdeel de noodzaak van het RAW fotobestandsformaat uit en wordt duidelijk gemaakt waarom JPEG alsook TIFF bestanden ontoereikend zijn voor wetenschappelijke (lucht)fotografie. Al deze informatie laat uiteindelijk toe de ontwikkelde technologieën en benaderingen volledig te begrijpen en hun belang voor het archeologische luchtfotografische onderzoek beter in te schatten.
Advisors/Committee Members: Vermeulen, Frank.
Subjects/Keywords: Biology and Life Sciences; Near-UltraViolet (NUV); Near-InfraRed; NIR; JPEG; NDVI; Vegetation index; Simple ratio; SR; DSC; Digital Still Camera; Focal length; Regione Marche; NDVI; RAW; Archaeology; Remote sensing; Aerial archaeology; Aerial photography; Red Edge; Crop mark; Plant; Chlorophyll; Optics; Photography; Helikite; Low-Altitude Aerial Photography; LAAP; Potentia; PVS; TIFF; Potenza; Italy; Ricina; Trea; RAW; Rectification
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Verhoeven, G. (2009). Beyond conventional boundaries: new technologies, methodologies, and procedures for the benefit of aerial archaeological data acquisition and analysis. (Thesis). Ghent University. Retrieved from http://hdl.handle.net/1854/LU-631969
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Verhoeven, Geert. “Beyond conventional boundaries: new technologies, methodologies, and procedures for the benefit of aerial archaeological data acquisition and analysis.” 2009. Thesis, Ghent University. Accessed January 27, 2021.
http://hdl.handle.net/1854/LU-631969.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Verhoeven, Geert. “Beyond conventional boundaries: new technologies, methodologies, and procedures for the benefit of aerial archaeological data acquisition and analysis.” 2009. Web. 27 Jan 2021.
Vancouver:
Verhoeven G. Beyond conventional boundaries: new technologies, methodologies, and procedures for the benefit of aerial archaeological data acquisition and analysis. [Internet] [Thesis]. Ghent University; 2009. [cited 2021 Jan 27].
Available from: http://hdl.handle.net/1854/LU-631969.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Verhoeven G. Beyond conventional boundaries: new technologies, methodologies, and procedures for the benefit of aerial archaeological data acquisition and analysis. [Thesis]. Ghent University; 2009. Available from: http://hdl.handle.net/1854/LU-631969
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)
7.
Καραγιάννης, Γεώργιος.
Μη καταστρεπτική ταυτοποίηση έργων τέχνης με τη βοήθεια πολυφασματικών εικόνων, φασμάτων και ακουστικής μικροσκοπίας.
Degree: 2008, Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)
URL: http://hdl.handle.net/10442/hedi/18909
► The target of this PhD thesis is the development of a system for the non destructive reveal of the information that stems from the art…
(more)
▼ The target of this PhD thesis is the development of a system for the non destructive reveal of the information that stems from the art objects internal paint layers (stratigraphy) with a resolution of 1-10μm. The reveal of the stratigraphy provides important information related to the technique and the materials used for the creation of them as well as previous restoration attempts, initial design, overpaintings and more. This information is up to now mainly acquired through analytical spectroscopic methods, which require a micro-sampling operation. Most of the times, the objects under study are highly valuable and therefore must not be subjected to any intervention. Consequently, Non Destructive Testing (NDT) techniques to acquire cross section (depth profile) information from the paint layers of artworks is imperative. The target was achieved using the combination of the acoustic microscopy with Ultra Violet, Visible, near Infrared and mid-Infrared (UV/VIS/nIR/mIR) diffuse reflectance spectroscopy; Using acoustic microscopy, we can obtain the number of layers in the stratigraphy, while using UV/VIS/nIR/mIR spectroscopy in diffuse-reflectance mode, we are able to identify the materials which are present in each paint-layer. This work presents the acoustic microscopy device. The proposed system was initially tested in experimental reference samples simulating art objects, providing the depth profile of stratigraphies comprised by three layers and then in real art objects. The identification of the materials in the art objects stratigraphies that was achieved is of 89% for the first layer while 72% for the under layers. The resolution of the paint layers discrimination, as well as of the grains in the studied structures was of the order of 1-5μm in the transversal direction while 15-30μm in the longitudinal direction.
O σκοπός της διδακτορικής αυτής εργασίας, είναι η ανάπτυξη ενός συστήματος λήψης και επεξεργασίας πληροφορίας μη καταστρεπτικού χαρακτήρα, προερχόμενης από πολυστρωματικές δομές όπως τα χρωματικά στρώματα των έργων ζωγραφικής, με διακριτική ικανότητα τάξης μεγέθους 1-10μm, με σκοπό τον ποιοτικό και ποσοτικό χαρακτηρισμό των χρωματικών αυτών στρωμάτων. Η χρησιμότητα ενός τέτοιου συστήματος κρίνεται πολύ σημαντική δεδομένου ότι κατ' αυτόν τον τρόπο ακυρώνεται η δειγματοληψία η οποία μέχρι σήμερα ενίοτε κρίνεται ως απαραίτητη. Η μελέτη της στρωματογραφίας των έργων ζωγραφικής τέχνης, προσφέρει ανεκτίμητες πληροφορίες που συνδέονται με πιθανές μεταγενέστερες επιζωγραφίσεις, επεμβάσεις, παλαιότερες ανεπιτυχείς ίσως εργασίες συντήρησης, αλλά και με την τεχνική του καλλιτέχνη δημιουργού του έργου, ο οποίος χρησιμοποίησε επιλεγμένες χρωστικές ή τρόπους χρήσης των χρωστικών αυτών, προκειμένου ν' αποδώσει το προσωπικό του εσωτερικό όραμα. Ο στόχος αυτός πραγματοποιήθηκε με τη χρήση τεχνικών πολυφασματικών λήψεων στην υπεριώδη (200-400nm), ορατή (400-700nm), κοντινή (700-2500nm) και μέση υπέρυθρη περιοχή του φάσματος (2500-4500nm) (UV/VIS/nIR/mIR) σε συνδυασμό με τη χρήση ακουστικής μικροσκοπίας συχνοτήτων…
Subjects/Keywords: Μη καταστροφικοί έλεγχοι; Διάγνωση έργων τέχνης; Πολυφασματικές λήψεις εικόνων και φασμάτων; Ακουστική μικροσκοπία; Επεξεργασία σημάτων; Φασματοσκοπία υπεριώδους, ορατού, κοντινού και μέσου υπέρυθρου; Μετασχηματισμός κυματιδίων; Απεικόνιση πληροφορίας χρόνου συχνότητας; Non destructive testing; Art objects diagnosis; Multispectal images and spectra acquisition; Acoustic microscopy; Signal processing; Ultraviolet, visible, near and mid inrared reflectance spectroscopy; Wavelet transform; Hilbert Huang transform; Time frequency representation
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APA (6th Edition):
Καραγιάννης, . . (2008). Μη καταστρεπτική ταυτοποίηση έργων τέχνης με τη βοήθεια πολυφασματικών εικόνων, φασμάτων και ακουστικής μικροσκοπίας. (Thesis). Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ). Retrieved from http://hdl.handle.net/10442/hedi/18909
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Καραγιάννης, Γεώργιος. “Μη καταστρεπτική ταυτοποίηση έργων τέχνης με τη βοήθεια πολυφασματικών εικόνων, φασμάτων και ακουστικής μικροσκοπίας.” 2008. Thesis, Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ). Accessed January 27, 2021.
http://hdl.handle.net/10442/hedi/18909.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Καραγιάννης, Γεώργιος. “Μη καταστρεπτική ταυτοποίηση έργων τέχνης με τη βοήθεια πολυφασματικών εικόνων, φασμάτων και ακουστικής μικροσκοπίας.” 2008. Web. 27 Jan 2021.
Vancouver:
Καραγιάννης . Μη καταστρεπτική ταυτοποίηση έργων τέχνης με τη βοήθεια πολυφασματικών εικόνων, φασμάτων και ακουστικής μικροσκοπίας. [Internet] [Thesis]. Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); 2008. [cited 2021 Jan 27].
Available from: http://hdl.handle.net/10442/hedi/18909.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Καραγιάννης . Μη καταστρεπτική ταυτοποίηση έργων τέχνης με τη βοήθεια πολυφασματικών εικόνων, φασμάτων και ακουστικής μικροσκοπίας. [Thesis]. Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); 2008. Available from: http://hdl.handle.net/10442/hedi/18909
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
.