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Oregon State University
1.
Paxson, Glenn Stewart, 1893-.
Light reflecting characteristics of various pavement surfaces.
Degree: MS, Civil Engineering, 1938, Oregon State University
URL: http://hdl.handle.net/1957/53128
Subjects/Keywords: Reflectance
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APA (6th Edition):
Paxson, Glenn Stewart, 1. (1938). Light reflecting characteristics of various pavement surfaces. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/53128
Chicago Manual of Style (16th Edition):
Paxson, Glenn Stewart, 1893-. “Light reflecting characteristics of various pavement surfaces.” 1938. Masters Thesis, Oregon State University. Accessed April 13, 2021.
http://hdl.handle.net/1957/53128.
MLA Handbook (7th Edition):
Paxson, Glenn Stewart, 1893-. “Light reflecting characteristics of various pavement surfaces.” 1938. Web. 13 Apr 2021.
Vancouver:
Paxson, Glenn Stewart 1. Light reflecting characteristics of various pavement surfaces. [Internet] [Masters thesis]. Oregon State University; 1938. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1957/53128.
Council of Science Editors:
Paxson, Glenn Stewart 1. Light reflecting characteristics of various pavement surfaces. [Masters Thesis]. Oregon State University; 1938. Available from: http://hdl.handle.net/1957/53128

Cornell University
2.
Harvey, Todd.
Spatially- And Directionally-Varying Reflectance Of Milli-Scale Feather Morphology.
Degree: PhD, Zoology, 2012, Cornell University
URL: http://hdl.handle.net/1813/31163
► Birds have evolved diverse plumage through sophisticated morphological modifications. The interaction of light with these modifications alters the reflectance from feathers, producing complex and directionally-variable…
(more)
▼ Birds have evolved diverse plumage through sophisticated morphological modifications. The interaction of light with these modifications alters the
reflectance from feathers, producing complex and directionally-variable visual signals. I hypothesize that structural modifications of the feather produce anisotropic
reflectance, the direction of which is determined by the orientation of the structure of the vane. Variation in
reflectance originates from the interplay of light with two classes of feather structure: its surface and subsurface volume. Different structural scales within the two structural classes influence light scattering within the UV-visible spectrum. The overall shape and surface of the feather vane (the macro-scale) and of its component members (the milli-scale) scatter light according to principles of geometric optics. Subsurface nano-scale structure in many feathers generate socalled "structural coloration," which is a purely physical optics phenomenon and can differ drastically from ordinary coloration mechanisms such as pigmentation. Iridescence, from which many feathers derive their vivid, eye-catching changeable color, is one type of structural color that varies as a function of viewing angle. This thesis presents investigations into a previously understudied aspect of avian visual signaling: directional
reflectance and its relationship to milli-scale structure. Having observed that the stratified nano-scale morphology of structurallycolored plumage contours the milli-scale cortex of the vane, I determined that measurements of the milli-scale could be substituted for a more complex study of directional
reflectance from the nano-scale. I thereby hypothesize that the direction of the
reflectance from a vaned feather can be predicted from the orientation of its milli-scale morphology-its barbs and barbules. In collaboration with my colleagues at Cornell University, I developed non-destructive tools and methods to investigate the signaling potential of the feather. I correlate measurements of directional light scattering to the milli-scale morphology of select samples of structurally-colored bird plumage. The results of these analyses lead to a more thorough understanding of the relationships between directional
reflectance and the structure of the feather itself. Having found the
reflectance to be anisotropic, I demonstrate that the change in the direction of the
reflectance over the surface of the vane can in fact be predicted from the orientation of the different branches of the barb. The improved understanding of the variation in directional
reflectance over the surface of the feather, a phenotypic component, should allow for better comprehension of avian behavior, evolution of morphological adaptations, and the synthesis of more accurate predictive models.
Advisors/Committee Members: Suarez, Susan Stevens (chair), Loew, Ellis Roger (committee member), Marschner, Stephen Robert (committee member), Bostwick, Kimberly Sue (committee member), Hermanson, John W (committee member).
Subjects/Keywords: feather; morphology; reflectance
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APA (6th Edition):
Harvey, T. (2012). Spatially- And Directionally-Varying Reflectance Of Milli-Scale Feather Morphology. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/31163
Chicago Manual of Style (16th Edition):
Harvey, Todd. “Spatially- And Directionally-Varying Reflectance Of Milli-Scale Feather Morphology.” 2012. Doctoral Dissertation, Cornell University. Accessed April 13, 2021.
http://hdl.handle.net/1813/31163.
MLA Handbook (7th Edition):
Harvey, Todd. “Spatially- And Directionally-Varying Reflectance Of Milli-Scale Feather Morphology.” 2012. Web. 13 Apr 2021.
Vancouver:
Harvey T. Spatially- And Directionally-Varying Reflectance Of Milli-Scale Feather Morphology. [Internet] [Doctoral dissertation]. Cornell University; 2012. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1813/31163.
Council of Science Editors:
Harvey T. Spatially- And Directionally-Varying Reflectance Of Milli-Scale Feather Morphology. [Doctoral Dissertation]. Cornell University; 2012. Available from: http://hdl.handle.net/1813/31163
3.
Watanabe, Daisuke.
Spectral imaging support system for multiple images by mosaicing : モザイキングによる複数スペクトル画像の解析支援システム; モザイキング ニヨル フクスウ スペクトル ガゾウ ノ カイセキ シエン システム.
Degree: Nara Institute of Science and Technology / 奈良先端科学技術大学院大学
URL: http://hdl.handle.net/10061/4205
Subjects/Keywords: Spectral Reflectance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Watanabe, D. (n.d.). Spectral imaging support system for multiple images by mosaicing : モザイキングによる複数スペクトル画像の解析支援システム; モザイキング ニヨル フクスウ スペクトル ガゾウ ノ カイセキ シエン システム. (Thesis). Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10061/4205
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Watanabe, Daisuke. “Spectral imaging support system for multiple images by mosaicing : モザイキングによる複数スペクトル画像の解析支援システム; モザイキング ニヨル フクスウ スペクトル ガゾウ ノ カイセキ シエン システム.” Thesis, Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Accessed April 13, 2021.
http://hdl.handle.net/10061/4205.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Watanabe, Daisuke. “Spectral imaging support system for multiple images by mosaicing : モザイキングによる複数スペクトル画像の解析支援システム; モザイキング ニヨル フクスウ スペクトル ガゾウ ノ カイセキ シエン システム.” Web. 13 Apr 2021.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Vancouver:
Watanabe D. Spectral imaging support system for multiple images by mosaicing : モザイキングによる複数スペクトル画像の解析支援システム; モザイキング ニヨル フクスウ スペクトル ガゾウ ノ カイセキ シエン システム. [Internet] [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10061/4205.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Council of Science Editors:
Watanabe D. Spectral imaging support system for multiple images by mosaicing : モザイキングによる複数スペクトル画像の解析支援システム; モザイキング ニヨル フクスウ スペクトル ガゾウ ノ カイセキ シエン システム. [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; Available from: http://hdl.handle.net/10061/4205
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
4.
Li, Shiying.
Estimating diffuse and specular reflectance parameters from spectral images : 分光画像による拡散反射と鏡面反射の反射パラメータ推定; ブンコウ ガゾウ ニヨル カクサン ハンシャ ト キョウメン ハンシャ ノ ハンシャ パラメータ スイテイ.
Degree: Nara Institute of Science and Technology / 奈良先端科学技術大学院大学
URL: http://hdl.handle.net/10061/4360
Subjects/Keywords: reflectance parameters
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Li, S. (n.d.). Estimating diffuse and specular reflectance parameters from spectral images : 分光画像による拡散反射と鏡面反射の反射パラメータ推定; ブンコウ ガゾウ ニヨル カクサン ハンシャ ト キョウメン ハンシャ ノ ハンシャ パラメータ スイテイ. (Thesis). Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10061/4360
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Li, Shiying. “Estimating diffuse and specular reflectance parameters from spectral images : 分光画像による拡散反射と鏡面反射の反射パラメータ推定; ブンコウ ガゾウ ニヨル カクサン ハンシャ ト キョウメン ハンシャ ノ ハンシャ パラメータ スイテイ.” Thesis, Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Accessed April 13, 2021.
http://hdl.handle.net/10061/4360.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Li, Shiying. “Estimating diffuse and specular reflectance parameters from spectral images : 分光画像による拡散反射と鏡面反射の反射パラメータ推定; ブンコウ ガゾウ ニヨル カクサン ハンシャ ト キョウメン ハンシャ ノ ハンシャ パラメータ スイテイ.” Web. 13 Apr 2021.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Vancouver:
Li S. Estimating diffuse and specular reflectance parameters from spectral images : 分光画像による拡散反射と鏡面反射の反射パラメータ推定; ブンコウ ガゾウ ニヨル カクサン ハンシャ ト キョウメン ハンシャ ノ ハンシャ パラメータ スイテイ. [Internet] [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10061/4360.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Council of Science Editors:
Li S. Estimating diffuse and specular reflectance parameters from spectral images : 分光画像による拡散反射と鏡面反射の反射パラメータ推定; ブンコウ ガゾウ ニヨル カクサン ハンシャ ト キョウメン ハンシャ ノ ハンシャ パラメータ スイテイ. [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; Available from: http://hdl.handle.net/10061/4360
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

IUPUI
5.
Saha, Abir.
Development of infrared reflectance characteristics of surrogate roadside objects.
Degree: 2018, IUPUI
URL: http://hdl.handle.net/1805/16930
► Indiana University-Purdue University Indianapolis (IUPUI)
An important topic in autonomous vehicle related research in recent times is road departure warning (RDW) and road keeping assistance…
(more)
▼ Indiana University-Purdue University Indianapolis (IUPUI)
An important topic in autonomous vehicle related research in recent times is road departure warning (RDW) and road keeping assistance (RKA). RDW or RKA should be able to recognize and avoid roadside objects. Standard tests are needed to evaluate the performance of RDW and RKA feature of cars from different manufacturers. To avoid damage to the cars under test and the test environment during testing, there is a need of soft, durable and reusable surrogate targets representing various real roadside objects such as curb, concrete divider and metal guardrail. These surrogate objects should have representative characteristics of real roadside objects from the point of view of various commonly used object detection sensors on the vehicles such as camera, radar and LIDAR. Transportation Active Safety Institute (TASI) at Indian University-Purdue University Indianapolis (IUPUI) is in the process of developing surrogate concrete divider, curb metal guardrail and grass that should be recognized as real roadside objects by LIDAR sensors, can be crashed without damage to the test vehicle and can be reused even after multiple crashes. The first step is to understand what the representative roadside objects should look like from the point of view of LIDAR units using laser of various wavelengths, and the next step is to design surrogate objects that successfully emulate the properties of the real roadside objects. Reflectance of an object is an important property for LIDAR detection. This thesis describes an approach for the determination of infrared reflectance property of concrete, metal guardrail and grass for different LIDAR view angles. Various samples of each of these roadside objects were evaluated. Based on these measurements, the suggested reflectance of surrogate roadside objects in the common LIDAR wavelength range of 800-1100 nm is specified. Finally, the design of surrogate roadside objects that satisfy these requirements is described, and the infrared reflectance of these surrogate objects are compared to the suggested reflectance bounds for different LIDAR view angles.
Advisors/Committee Members: Chien, Stanley, Li, Lingxi, Li, Lin.
Subjects/Keywords: Infrared reflectance; LIDAR; Road departure
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Saha, A. (2018). Development of infrared reflectance characteristics of surrogate roadside objects. (Thesis). IUPUI. Retrieved from http://hdl.handle.net/1805/16930
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):
Saha, Abir. “Development of infrared reflectance characteristics of surrogate roadside objects.” 2018. Thesis, IUPUI. Accessed April 13, 2021.
http://hdl.handle.net/1805/16930.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Saha, Abir. “Development of infrared reflectance characteristics of surrogate roadside objects.” 2018. Web. 13 Apr 2021.
Vancouver:
Saha A. Development of infrared reflectance characteristics of surrogate roadside objects. [Internet] [Thesis]. IUPUI; 2018. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1805/16930.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Saha A. Development of infrared reflectance characteristics of surrogate roadside objects. [Thesis]. IUPUI; 2018. Available from: http://hdl.handle.net/1805/16930
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University
6.
Zaworski, Joseph Robert.
Experimental and analytical characterization of bidirectional reflectance data for engineering materials.
Degree: PhD, Mechanical Engineering, 1994, Oregon State University
URL: http://hdl.handle.net/1957/36350
► Bidirectional reflectance is a fundamental property used for the analysis of radiative heat transfer. It is a form of reflectivity in which the spectral and…
(more)
▼ Bidirectional
reflectance is a fundamental property
used for the analysis of radiative heat transfer. It is a
form of reflectivity in which the spectral and directional
dependencies of both the beam incident on a surface and the
beam reflected from the surface are specified.
A new system has been designed expressly for measuring
bidirectional
reflectance of engineering materials. This
apparatus features a unique goniometer design in which the
source is fixed, the sample is rotated to change the
incident beam directions, and the sensor (which moves with
the sample) is rotated about the sample to change the
measured reflected beam direction.
The system was used to measure the bidirectional
reflectance of a surface consisting of flat-white paint on
an aluminum substrate. The data for this quasi-diffuse
surface were taken over a non-uniform grid. Algorithms are
presented for interpolating and reporting values on a
uniform grid which is appropriate for use in numerical
radiative transfer codes.
Bidirectional
reflectance data can be used in the form
of a look-up table although storage requirements will be
large and resolution will be limited by grid resolution.
Alternatively, the data can be modeled as continuous
functions of the incident beam angle. A simple model of
reflectance as the sum of a diffuse and a specular
component is described. A second model with a diffuse
component and a quasi-specular component is also presented
which includes spread in both the polar and azimuthal
directions. Both models are continuous and are based on
curve fits to the data.
Advisors/Committee Members: Welty, James R. (advisor).
Subjects/Keywords: Spectral reflectance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zaworski, J. R. (1994). Experimental and analytical characterization of bidirectional reflectance data for engineering materials. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/36350
Chicago Manual of Style (16th Edition):
Zaworski, Joseph Robert. “Experimental and analytical characterization of bidirectional reflectance data for engineering materials.” 1994. Doctoral Dissertation, Oregon State University. Accessed April 13, 2021.
http://hdl.handle.net/1957/36350.
MLA Handbook (7th Edition):
Zaworski, Joseph Robert. “Experimental and analytical characterization of bidirectional reflectance data for engineering materials.” 1994. Web. 13 Apr 2021.
Vancouver:
Zaworski JR. Experimental and analytical characterization of bidirectional reflectance data for engineering materials. [Internet] [Doctoral dissertation]. Oregon State University; 1994. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1957/36350.
Council of Science Editors:
Zaworski JR. Experimental and analytical characterization of bidirectional reflectance data for engineering materials. [Doctoral Dissertation]. Oregon State University; 1994. Available from: http://hdl.handle.net/1957/36350

University of Arizona
7.
Kottke, Michael Lee, 1947-.
Thermoreflectance of amorphous GeTe
.
Degree: 1974, University of Arizona
URL: http://hdl.handle.net/10150/554635
Subjects/Keywords: Reflectance spectroscopy.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Kottke, Michael Lee, 1. (1974). Thermoreflectance of amorphous GeTe
. (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/554635
Chicago Manual of Style (16th Edition):
Kottke, Michael Lee, 1947-. “Thermoreflectance of amorphous GeTe
.” 1974. Masters Thesis, University of Arizona. Accessed April 13, 2021.
http://hdl.handle.net/10150/554635.
MLA Handbook (7th Edition):
Kottke, Michael Lee, 1947-. “Thermoreflectance of amorphous GeTe
.” 1974. Web. 13 Apr 2021.
Vancouver:
Kottke, Michael Lee 1. Thermoreflectance of amorphous GeTe
. [Internet] [Masters thesis]. University of Arizona; 1974. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10150/554635.
Council of Science Editors:
Kottke, Michael Lee 1. Thermoreflectance of amorphous GeTe
. [Masters Thesis]. University of Arizona; 1974. Available from: http://hdl.handle.net/10150/554635

Technical University of Lisbon
8.
Graça, João Nuno Duarte.
Validação de um dispositivo não-invasivo e não-destrutivo para avaliação do estado de maturação das uvas.
Degree: 2014, Technical University of Lisbon
URL: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/6808
► Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia / Faculdade de Ciências. Universidade do Porto
In this work, WinePen validation procedures were applied…
(more)
▼ Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia / Faculdade de Ciências. Universidade do Porto
In this work, WinePen validation procedures were applied in order to verify the robustness of the device in the field and the models used to estimate the parameters Brix, Titratable acidity and Anthocyanins. This device’s operating system is based on reflectance and fluorescence. This validation was held in 2013, on vineyards with white and red varieties, in the Superior Institute of Agronomy, situated in the Wine Region of Lisbon.
For WinePen validations, 25 berries of each variety were measured, under different conditions (laboratory and field) in order to verify the light effect on measurements. The berries were first analyzed by WinePen and afterwards examined in the laboratory. In order to select the best models, the fitting quality of the observed values was evaluated using the following deviance measures: determination coefficient (R2), mean absolute error (MAE); root mean square error (RMSE).
High and significant correlations for Brix (0.93 to 0.96) and for titratable acidity (0.86 to 0.96) were observed for different types of environment (laboratory and field) and for different varieties (whites and reds). However, the anthocyanins parameter observed lower and less significant correlations (0.70) in both reading conditions.
Thereby, the results obtained demonstrate the reliability of measurements performed by WinePen for different varieties and environments
Advisors/Committee Members: Lopes, Carlos Manuel Antunes.
Subjects/Keywords: grapevine; brix; titratable acidity; anthocyanins; reflectance; fluorescence
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APA ·
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MLA ·
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to Zotero / EndNote / Reference
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APA (6th Edition):
Graça, J. N. D. (2014). Validação de um dispositivo não-invasivo e não-destrutivo para avaliação do estado de maturação das uvas. (Thesis). Technical University of Lisbon. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/6808
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):
Graça, João Nuno Duarte. “Validação de um dispositivo não-invasivo e não-destrutivo para avaliação do estado de maturação das uvas.” 2014. Thesis, Technical University of Lisbon. Accessed April 13, 2021.
http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/6808.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Graça, João Nuno Duarte. “Validação de um dispositivo não-invasivo e não-destrutivo para avaliação do estado de maturação das uvas.” 2014. Web. 13 Apr 2021.
Vancouver:
Graça JND. Validação de um dispositivo não-invasivo e não-destrutivo para avaliação do estado de maturação das uvas. [Internet] [Thesis]. Technical University of Lisbon; 2014. [cited 2021 Apr 13].
Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/6808.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Graça JND. Validação de um dispositivo não-invasivo e não-destrutivo para avaliação do estado de maturação das uvas. [Thesis]. Technical University of Lisbon; 2014. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/6808
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tasmania
9.
Smolskaia, I.
Effect of inhomogeneous surface albedo on UV radiation in the Antarctic environment.
Degree: 2001, University of Tasmania
URL: https://eprints.utas.edu.au/21629/1/whole_SmolskaiaIrena2001_thesis.pdf
► Each year in Antarctica, the period of greatest biological production in the coastal waters coincides with the onset of the ozone hole [Davidson and van…
(more)
▼ Each year in Antarctica, the period of greatest biological production in the coastal waters coincides with the onset of the ozone hole [Davidson and van der Heijden, 2000]. UV irradiance, enhanced by stratospheric ozone depletion and by highly reflective snow, may impact on the biota blooming in sea ice and the marginal sea ice zone. This thesis examines how surface reflectivity influences the downwelling UV irradiance at the ground in the Antarctic environment. The work is based on numerical model simulations and on field observations.
A 3-D Monte Carlo model of the transmission of UV radiation through the Antarctic atmosphere was developed for both clear and overcast sky conditions. It incorporated inhomogeneity of surface reflectance. Simulations were performed over a surface of 100 x 100 km2, one half of which was snow-covered ice and the other half was ocean. Multiple reflections of photons between the high albedo snow-covered surface and the atmosphere enhance both spectral (296 - 400 nm) and erythemal irradiance at the ground.
In clear sky conditions, the enhancement is found to be a function of wavelength, distance from the ice edge, total ozone column (TOC) and surface reflectivity, but is independent of solar zenith angle. The enhancement increases with decreasing TOC and increasing surface albedo, and reaches limiting values within 20 - 25 km of the ice edge on both the water side and the snow side. It is strongest at wavelengths between 315 and 320 nm. For surface albedos of 0.90 (snow) and 0.05 (water), and with TOC = 350 DU, the total irradiance enhancement (ratio of limiting irradiance over snow to that over water) at 315 nm can reach 54%. The enhancement of erythemal irradiance behaves in a very similar fashion to the spectral irradiance at 306 nm.
In overcast conditions the enhancement follows a similar pattern, except that it reaches its limiting values within 3 - 8 km either side of the ice edge. The enhancement increases with wavelength, surface reflectivity and cloud albedo, but decreases with increasing cloud base height. The enhancement of erythemal irradiance is found to be independent ofTOC, in spite of a decrease in enhancement with increase in TOC at wavelengths up to 320 nm. For a snow albedo of 0.90, a water albedo of 0.05, TOC = 350 DU, cloud optical depth of 15, cloud albedo of 0.60 and a cloud base height of 1 km, the total enhancement can reach 156% at a wavelength of 400 nm. The enhancement of erythemal irradiance in overcast sky conditions behaves in an analogous fashion to the spectral irradiance at 315 run.
Direct experimental measurements of erythemal irradiance were obtained near an ice/water boundary at Davis Station, Antarctica. Clear sky observations showed a total enhancement of 10%, with limiting values reached at 2.5 km either side of the ice edge. In overcast conditions the enhancement was 30% at 2.5 km from the ice edge.
When the surface albedo distribution from NOAA/A VHRR is incorporated into the Monte Carlo model, there is a good agreement with the observations.…
Subjects/Keywords: Reflectance; Ultraviolet radiation
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APA (6th Edition):
Smolskaia, I. (2001). Effect of inhomogeneous surface albedo on UV radiation in the Antarctic environment. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/21629/1/whole_SmolskaiaIrena2001_thesis.pdf
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):
Smolskaia, I. “Effect of inhomogeneous surface albedo on UV radiation in the Antarctic environment.” 2001. Thesis, University of Tasmania. Accessed April 13, 2021.
https://eprints.utas.edu.au/21629/1/whole_SmolskaiaIrena2001_thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Smolskaia, I. “Effect of inhomogeneous surface albedo on UV radiation in the Antarctic environment.” 2001. Web. 13 Apr 2021.
Vancouver:
Smolskaia I. Effect of inhomogeneous surface albedo on UV radiation in the Antarctic environment. [Internet] [Thesis]. University of Tasmania; 2001. [cited 2021 Apr 13].
Available from: https://eprints.utas.edu.au/21629/1/whole_SmolskaiaIrena2001_thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Smolskaia I. Effect of inhomogeneous surface albedo on UV radiation in the Antarctic environment. [Thesis]. University of Tasmania; 2001. Available from: https://eprints.utas.edu.au/21629/1/whole_SmolskaiaIrena2001_thesis.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University
10.
Saldua, Meagan Alyssa.
Reflectance and Fluorescence Confocal Microscope for Imaging of the Mouse Colon.
Degree: MS, Biomedical Engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8940
► Many Americans are afflicted with inflammation of the colon. They are also at a higher risk of developing colon cancer. Confocal microscopy of bulk epithelial…
(more)
▼ Many Americans are afflicted with inflammation of the colon. They are also at a
higher risk of developing colon cancer. Confocal microscopy of bulk epithelial tissue has
the potential to provide information on tissue structural properties that may be lost in the
fixation and slicing procedures required for histopathology. Optical sectioning provides
images in three dimensions capturing the organizational structure of cells and colon
crypts throughout the entire colon. I have constructed a custom built fluorescence and
reflectance confocal microscope for imaging molecular and morphological changes
associated with development of inflammation in a mouse model.
A confocal microscope is a point scanning system that removes out of focus
light by placing a pinhole aperture in the conjugate image plane located in front of the
detector. We have two sources, 488 nm and 811 nm, for fluorescence and
reflectance
imaging, respectively. A polygon scanning mirror and a galvanometer scanning mirror
allow for a variable scan rate between 8 and 15 fps. The lateral resolution of the system
is approximately 3 μm with an axial resolution of 6 μm and 4 μm for
reflectance and
fluorescence mode, respectively.
As colon tissue becomes inflamed, there is a distinct change in the structure and
architecture of the tissue. The colon crypts are no longer uniform in size or distribution
throughout the tissue. Having a large field of view of 1mm2 allows for many colon
crypts to be visualized within a single frame. Histology was performed on the same
tissue imaged for the inflammatory study confirming the constructed confocal
microscope’s ability to characterize inflamed tissue and the potential use for guided
biopsy.
Mosaicing, or image tiling, is an imaging technique that stitches single frames
together to produce a much larger field of view. An extended frame with 1 mm x 2 cm
field of view is achieved within seconds. This extended frame would allow mosaicing of
the entire mouse colon much faster than conventional methods without loss of
resolution.
The acquired confocal images of colon tissue demonstrate the microscope’s
ability to resolve cell nuclei lining the colon crypts within a relatively large field of
view.
Advisors/Committee Members: Maitland, Kristen (advisor), Jo, Javier (committee member), Chapkin, Robert (committee member).
Subjects/Keywords: confocal microscopy; reflectance; fluorescence; mouse colon; inflammation
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APA ·
Chicago ·
MLA ·
Vancouver ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Saldua, M. A. (2012). Reflectance and Fluorescence Confocal Microscope for Imaging of the Mouse Colon. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8940
Chicago Manual of Style (16th Edition):
Saldua, Meagan Alyssa. “Reflectance and Fluorescence Confocal Microscope for Imaging of the Mouse Colon.” 2012. Masters Thesis, Texas A&M University. Accessed April 13, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8940.
MLA Handbook (7th Edition):
Saldua, Meagan Alyssa. “Reflectance and Fluorescence Confocal Microscope for Imaging of the Mouse Colon.” 2012. Web. 13 Apr 2021.
Vancouver:
Saldua MA. Reflectance and Fluorescence Confocal Microscope for Imaging of the Mouse Colon. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8940.
Council of Science Editors:
Saldua MA. Reflectance and Fluorescence Confocal Microscope for Imaging of the Mouse Colon. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8940

McMaster University
11.
Cappon, Derek J.
A Diffuse Reflectance Spectroscopy Instrument for use in the Optical Biopsy of Brain Tumour Margins.
Degree: PhD, 2016, McMaster University
URL: http://hdl.handle.net/11375/20529
► Optical biopsy is a medical technique that uses light to perform non-invasive analysis of tissue in-situ. This technology has many applications in the medical profession,…
(more)
▼ Optical biopsy is a medical technique that uses light to perform non-invasive analysis of tissue in-situ. This technology has many applications in the medical profession, opening up exciting new possibilities for surgical guidance and diagnosis of malignancies and other conditions. Optical biopsy allows a medical professional to perform near instantaneous, real time analysis of tissue composition without the need to physically remove tissue from the body, as required in traditional biopsy.
A technique frequently used for this purpose is diffuse reflectance spectroscopy (DRS): collection and analysis of the spectrum of light reflected from a material. Another technique frequently used for optical biopsy is laser induced fluorescence spectroscopy (LIFS): analysis of the fluorescence spectrum returned by a material when illuminated at a specific wavelength.
This thesis discusses the design and construction of a spatially resolved DRS system intended for use in a dual modality DRS and time resolved LIFS optical biopsy instrument for clinical analysis of brain tissue. This instrument is specifically intended for use in the surgical removal of malignant gliomas: infiltrating tumours associated with a poor patient prognosis.
Theoretical simulation based studies were used to optimize the design of a compact, dual modality fibre optic probe for use in the system and a novel algorithm was developed to allow recovery of the optical properties of tissue from reflectance spectra obtained with this probe. This probe was manufactured and a corresponding spectrometer based system was created for the acquisition of diffuse reflectance spectra. Components were designed to allow sterilization and thus clinical use in an operating room environment. A laboratory trial of this system demonstrated its range and ability to recover the optical properties of lipid emulsion optical phantoms.
Thesis
Doctor of Philosophy (PhD)
Advisors/Committee Members: Hayward, Joseph E, Radiation Sciences (Medical Physics/Radiation Biology).
Subjects/Keywords: Optical Biopsy; Diffuse Reflectance; Tissue Optics
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APA ·
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MLA ·
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CSE |
Export
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APA (6th Edition):
Cappon, D. J. (2016). A Diffuse Reflectance Spectroscopy Instrument for use in the Optical Biopsy of Brain Tumour Margins. (Doctoral Dissertation). McMaster University. Retrieved from http://hdl.handle.net/11375/20529
Chicago Manual of Style (16th Edition):
Cappon, Derek J. “A Diffuse Reflectance Spectroscopy Instrument for use in the Optical Biopsy of Brain Tumour Margins.” 2016. Doctoral Dissertation, McMaster University. Accessed April 13, 2021.
http://hdl.handle.net/11375/20529.
MLA Handbook (7th Edition):
Cappon, Derek J. “A Diffuse Reflectance Spectroscopy Instrument for use in the Optical Biopsy of Brain Tumour Margins.” 2016. Web. 13 Apr 2021.
Vancouver:
Cappon DJ. A Diffuse Reflectance Spectroscopy Instrument for use in the Optical Biopsy of Brain Tumour Margins. [Internet] [Doctoral dissertation]. McMaster University; 2016. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/11375/20529.
Council of Science Editors:
Cappon DJ. A Diffuse Reflectance Spectroscopy Instrument for use in the Optical Biopsy of Brain Tumour Margins. [Doctoral Dissertation]. McMaster University; 2016. Available from: http://hdl.handle.net/11375/20529

Delft University of Technology
12.
Klein, Jigme (author).
Performance evaluation of the CWI BRDF-fitting method under cloud-contaminated conditions: A numerical experiment using PROSAIL.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:e16a9fdc-5f7f-4588-8f69-a64f07c24879
► Remote retrieval of Normalized Difference Vegetation Index (NDVI) over the Earth’s surface is a critical component of monitoring the surface processes of our planet. NDVI…
(more)
▼ Remote retrieval of Normalized Difference Vegetation Index (NDVI) over the Earth’s surface is a critical component of monitoring the surface processes of our planet. NDVI is a widely used and useful indicator of vegetation health and quantity however its retrieval using satellite data is hindered by the frequent presence of clouds in the Earth’s atmosphere. Zeng et al. (2016) developed a novel technique that estimates a surface's Bidirectional
Reflectance Distribution Function (BRDF) with a RossLiMaignan (RLM) BRDF model from a set of observations. This method, the ChangingWeight Iterative (CWI) method, uses iterative a posteriori estimation of observation errors to reduce the impact of cloud-contaminated measurements in the sample. Its performance was compared to two conventional methods, ordinaryleast squares (OLS) and LiGao BRDF-fitting. The three different BRDFfitting methods were compared in a numerical experiment. 6,000 surface types covering a broad range of surface types were modeled using the canopy radiative transfer model PROSAIL. For each surface, sets of pseudo-observations of the surface’s red and NIR band
reflectance were generated using realistic suntarget view geometries from the MODIS and MERSI satellite sensors. The effects of cloudcontamination were simulated by adding different numbers of cloudcontaminated observation to the sample, with varying degrees of contamination. The RLM BRDF model was fitted to these samples using the three different methods to estimate the BRDF model parameters. These were subsequently used to calculate a NDVI composite value. Each method’s estimate was compared to a reference value generated by PROSAIL. Results for the 6,000 surfaces confirmed that the CWI method is more noiseresistant than OLS and LiGao in situations with many observations (i.e. a large sample), and resulted in estimates that more closely matched the reference value from PROSAIL, compared to the conventional LiGao and OLS methods. In scenarios of lowcloud contamination, all three methods failed to detect and significantly suppress the impact of noisy observations, which was expected from existing literature. For a largesized sample of 13 pseudoobservations studied for the validation site Mongu, Zambia, the CWI method was observed to have a very accurate performance, for up to 5 contaminated observations in the sample. With smaller sized samples of 8 and 10 for two other validation sites, it was found that the RMSE of the CWI method would suddenly increase approximately tenfold when the number of contaminated observations increased beyond 2 and 3, respectively. After these ’tipping points’, the LiGao method was more accurate and outperformed CWI. The CWI method therefore performed promisingly when given a large enough sample size, and in these cases it was more accurate than the conventional Li-Gao and OLS methods. However, when it fails to correctly identify noisy observations, its accuracy could decrease suddenly, which should be taken into consideration for operational use. Since…
Advisors/Committee Members: Menenti, Massimo (mentor), Lhermitte, Stef (graduation committee), Lindenbergh, Roderik (graduation committee), LIU, Qinhuo (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Remote Sensing; BRDF; NDVI; simulation; PROSAIL; reflectance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Klein, J. (. (2020). Performance evaluation of the CWI BRDF-fitting method under cloud-contaminated conditions: A numerical experiment using PROSAIL. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e16a9fdc-5f7f-4588-8f69-a64f07c24879
Chicago Manual of Style (16th Edition):
Klein, Jigme (author). “Performance evaluation of the CWI BRDF-fitting method under cloud-contaminated conditions: A numerical experiment using PROSAIL.” 2020. Masters Thesis, Delft University of Technology. Accessed April 13, 2021.
http://resolver.tudelft.nl/uuid:e16a9fdc-5f7f-4588-8f69-a64f07c24879.
MLA Handbook (7th Edition):
Klein, Jigme (author). “Performance evaluation of the CWI BRDF-fitting method under cloud-contaminated conditions: A numerical experiment using PROSAIL.” 2020. Web. 13 Apr 2021.
Vancouver:
Klein J(. Performance evaluation of the CWI BRDF-fitting method under cloud-contaminated conditions: A numerical experiment using PROSAIL. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 13].
Available from: http://resolver.tudelft.nl/uuid:e16a9fdc-5f7f-4588-8f69-a64f07c24879.
Council of Science Editors:
Klein J(. Performance evaluation of the CWI BRDF-fitting method under cloud-contaminated conditions: A numerical experiment using PROSAIL. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:e16a9fdc-5f7f-4588-8f69-a64f07c24879

University of Delaware
13.
Good, Brandon Lowell.
Design and fabrication of planar structures with graded electromagnetic properties.
Degree: PhD, University of Delaware, Department of Electrical and Computer Engineering, 2015, University of Delaware
URL: http://udspace.udel.edu/handle/19716/17443
► Successfully integrating electromagnetic properties in planar structures offers numerous benefits to the microwave and optical communities. This work aims at formulating new analytic and optimized…
(more)
▼ Successfully integrating electromagnetic properties in planar structures offers numerous benefits to the microwave and optical communities. This work aims at formulating new analytic and optimized design methods, creating new fabrication techniques for achieving those methods, and matching appropriate implementation of methods to fabrication techniques. The analytic method consists of modifying an approach that realizes perfect antireflective properties from graded profiles. This method is shown for all-dielectric and magneto-dielectric grading profiles. The optimized design methods are applied to transformer (discrete) or taper (continuous) designs. From these methods, a subtractive and an additive manufacturing technique were established and are described. The additive method, dry powder dot deposition, enables three dimensional varying electromagnetic properties in a structural composite. Combining the methods and fabrication is shown in two applied methodologies. The first uses dry powder dot deposition to design one dimensionally graded electromagnetic profiles in a planar fiberglass composite. The second method simultaneously applies antireflective properties and adjusts directivity through a slab through the use of subwavelength structures to achieve a flat antireflective lens. The end result of this work is a complete set of methods, formulations, and fabrication techniques to achieve integrated electromagnetic properties in planar structures.
Advisors/Committee Members: Mirotznik, Mark S..
Subjects/Keywords: Reflectance.; Electromagnetism.; Microwaves.; Glass fibers.; Composite materials.
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Good, B. L. (2015). Design and fabrication of planar structures with graded electromagnetic properties. (Doctoral Dissertation). University of Delaware. Retrieved from http://udspace.udel.edu/handle/19716/17443
Chicago Manual of Style (16th Edition):
Good, Brandon Lowell. “Design and fabrication of planar structures with graded electromagnetic properties.” 2015. Doctoral Dissertation, University of Delaware. Accessed April 13, 2021.
http://udspace.udel.edu/handle/19716/17443.
MLA Handbook (7th Edition):
Good, Brandon Lowell. “Design and fabrication of planar structures with graded electromagnetic properties.” 2015. Web. 13 Apr 2021.
Vancouver:
Good BL. Design and fabrication of planar structures with graded electromagnetic properties. [Internet] [Doctoral dissertation]. University of Delaware; 2015. [cited 2021 Apr 13].
Available from: http://udspace.udel.edu/handle/19716/17443.
Council of Science Editors:
Good BL. Design and fabrication of planar structures with graded electromagnetic properties. [Doctoral Dissertation]. University of Delaware; 2015. Available from: http://udspace.udel.edu/handle/19716/17443
14.
Huynh, Dung.
Development of optical indices of articular cartilage damage and microstructure.
Degree: 2020, The Catholic University of America
URL: http://hdl.handle.net/1961/cuislandora:214716
► Articular cartilage is a microstructurally and biochemically complex tissue with distinct zonal architecture. The primary interactions of articular cartilage with polarized light are depolarization, diattenuation,…
(more)
▼ Articular cartilage is a microstructurally and biochemically complex tissue with distinct zonal architecture. The primary interactions of articular cartilage with polarized light are depolarization, diattenuation, and retardance. Damage to this tissue leads to osteoarthritis (OA), the most common chronic disease affecting 30 million adults in the United States. There is currently no cure for OA. Thus, methods to detect early or pre-OA, focusing on detection of cartilage surface damage and microstructural alterations, are of great interest to clinical orthopedics. Collagen fibers in articular cartilage possess strong birefringence. Birefringence signals and other polarization sensitive optical parameters can probe both surface and subsurface feature of pre-OA cartilage. The goal of this dissertation was to develop polarized reflectance microscopy as an imaging technique to detect OA-related alterations to articular cartilage. Three separate but related studies were conducted to investigate the sensitivity of polarized reflectance parameters. The first study found that polarized reflectance signal is associated with microscale damage to the articular surface and sub-surface collagen structure, similar to alterations that occur in early OA. The second study analyzed the origins of polarized reflectance image textural patterns and related them to underlying collagen network microstructure in the superficial zone. The third study separated polarized reflectance signal into major linear retardance and depolarization components by polar decomposition of experimentally-acquired Mueller matrix images, using a custom-built reflectance polarimeter. Together, these findings support the relevance of polarized reflectance signals from articular cartilage to orthopedic research and suggest clinical utility. Polarized reflectance imaging provides a noninvasive, label-free and fast way to assess superficial articular cartilage microstructure and may contribute to the development of novel optical biomarkers for prediction of early OA. Quantitative optical indices and image textural parameters derived from polarized reflectance imaging hold promise for clinical translation in arthroscopic modalities, or ex vivo tissue analysis.
Biomedical engineering
Bioengineering
articular cartilage, birefringence, microscopy, polarization, reflectance
Biomedical Engineering
Degree Awarded: D.Engr. Biomedical Engineering. The Catholic University of America
Advisors/Committee Members: The Catholic University of America (Degree granting institution), Raub, Christopher (Thesis advisor), Nehmetallah, Georges (Committee member), Wang, Zhaoyang (Committee member), Chang, Lin-ching (Committee member), Namazi, Nader (Committee member).
Subjects/Keywords: articular cartilage; birefringence; microscopy; polarization; reflectance
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Huynh, D. (2020). Development of optical indices of articular cartilage damage and microstructure. (Thesis). The Catholic University of America. Retrieved from http://hdl.handle.net/1961/cuislandora:214716
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):
Huynh, Dung. “Development of optical indices of articular cartilage damage and microstructure.” 2020. Thesis, The Catholic University of America. Accessed April 13, 2021.
http://hdl.handle.net/1961/cuislandora:214716.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Huynh, Dung. “Development of optical indices of articular cartilage damage and microstructure.” 2020. Web. 13 Apr 2021.
Vancouver:
Huynh D. Development of optical indices of articular cartilage damage and microstructure. [Internet] [Thesis]. The Catholic University of America; 2020. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1961/cuislandora:214716.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Huynh D. Development of optical indices of articular cartilage damage and microstructure. [Thesis]. The Catholic University of America; 2020. Available from: http://hdl.handle.net/1961/cuislandora:214716
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Northeastern University
15.
Fletcher, Ian.
Reflectance retrieval for hyperspectral imagery collected over urban environments.
Degree: MS, Department of Electrical and Computer Engineering, 2018, Northeastern University
URL: http://hdl.handle.net/2047/D20294168
► Hyperspectral Imaging (HSI) aims to classify targets based upon the extracted spectral reflectance signatures of objects within an image. This reflectance retrieval process estimates and…
(more)
▼ Hyperspectral Imaging (HSI) aims to classify targets based upon the extracted spectral reflectance signatures of objects within an image. This reflectance retrieval process estimates and compensates for the atmospheric effects on measured radiance data. Traditional reflectance retrieval methods rely upon simplifying assumptions about the target scene geometry. In particular, these methods require the target to exist in an open environment, in which all scene-incident solar and atmospheric illumination reach the target. When the open environment assumption is invalid, such as in urban environments where targets exist in complex lighting conditions, traditional reflectance retrieval methods will fail.; This thesis builds upon recent research into reflectance retrieval methods that do not rely on the open-environment assumption. These approaches fuse hyperspectral imagery with a model of target scene geometry to estimate the irradiance incident to targets in urban settings. In this thesis, we discuss an improvement to this method that fully models how light propagates through an environment before it reaches the target. In theory, this new irradiance estimate will fully account for the complex illumination conditions found in urban environments, thereby enabling accurate reflectance retrieval for targets in these settings. This model can be adapted to solve the forward problem of radiance estimation or the inverse problem of reflectance retrieval.; In this thesis, we discuss this new framework for estimating light propagation through urban scenes. Our main contribution to the problem of urban reflectance retrieval is the performance analysis of this method. For our analysis, we use this method to estimate the radiance that was measured by an HSI sensor during a collection campaign over two representative urban scenes. We then evaluate the areas in which this model performs well and those in which the model is unable to estimate this measured radiance. We trace some errors to simplifying assumptions made by the model and identify multiple possible sources of error for other observed modeling discrepancies. In all cases, we recommend modeling improvements to address these errors and experiments to test our presented hypotheses. Finally, we use this model to retrieve the reflectance signatures of the targets in our urban scenes. In doing so, we show that this model greatly improves the accuracy of retrieved reflectance over that retrieved by traditional models for targets in complex illumination conditions.
Subjects/Keywords: hyperspectral imaging; remote sensing; urban reflectance retrieval
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fletcher, I. (2018). Reflectance retrieval for hyperspectral imagery collected over urban environments. (Masters Thesis). Northeastern University. Retrieved from http://hdl.handle.net/2047/D20294168
Chicago Manual of Style (16th Edition):
Fletcher, Ian. “Reflectance retrieval for hyperspectral imagery collected over urban environments.” 2018. Masters Thesis, Northeastern University. Accessed April 13, 2021.
http://hdl.handle.net/2047/D20294168.
MLA Handbook (7th Edition):
Fletcher, Ian. “Reflectance retrieval for hyperspectral imagery collected over urban environments.” 2018. Web. 13 Apr 2021.
Vancouver:
Fletcher I. Reflectance retrieval for hyperspectral imagery collected over urban environments. [Internet] [Masters thesis]. Northeastern University; 2018. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/2047/D20294168.
Council of Science Editors:
Fletcher I. Reflectance retrieval for hyperspectral imagery collected over urban environments. [Masters Thesis]. Northeastern University; 2018. Available from: http://hdl.handle.net/2047/D20294168

Hong Kong University of Science and Technology
16.
Liu, Yu.
Micro-RDS study of magneto-optical effect on Bi[subscript 2]Te[subscript 3] and La[subscript 0.82]Ba[subscript 0.18]CoO[subscript 3].
Degree: 2012, Hong Kong University of Science and Technology
URL: http://repository.ust.hk/ir/Record/1783.1-7671
;
https://doi.org/10.14711/thesis-b1189944
;
http://repository.ust.hk/ir/bitstream/1783.1-7671/1/th_redirect.html
► Reflection anisotropy spectroscopy (RAS) is a non-destructive optical probe of surfaces which is widely used in different environments for science research since its development in…
(more)
▼ Reflection anisotropy spectroscopy (RAS) is a non-destructive optical probe of surfaces which is widely used in different environments for science research since its development in the late 80’s. For several advantages compared with conventional techniques, RDS provides insight into atomic and electronic structure and morphology of surfaces and interfaces in widely different environments. In this study, we will introduce our micro-Reflectance Difference Spectroscopy (RDS) system from the basic principles of how it works to its typical applications as a magneto-optic microscopic system. We would like also to optimize the basic RDS experiment instruments as well as some additional modifications for variable research purposes. Magneto-optic effect played a central role in the development of electromagnetic theory and atomic physics. In most of this thesis, I will systematically introduce both the principles and real cases of my study of the magneto-optical effects of typical advanced materials like Bi2Te3 thin film and La0.82Ba0.18CoO3 single crystal samples. No-uniform spin polarization domains were firstly found on topological insulator surface by our magneto-optic microscope. Anisotropy behaviors were found with external magnetic field, electron current flow and various low temperatures. Anisotropic magnetic behaviors were also found on the surface of La0.82Ba0.18CoO3 single crystal. The magnetization of Bi2Te3 was proved to be in-plane while that of La0.82Ba0.18CoO3 was off-plane.
Subjects/Keywords: Anisotropy
; Reflectance spectroscopy
; Magnetooptics – Materials – Optical properties
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APA (6th Edition):
Liu, Y. (2012). Micro-RDS study of magneto-optical effect on Bi[subscript 2]Te[subscript 3] and La[subscript 0.82]Ba[subscript 0.18]CoO[subscript 3]. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-7671 ; https://doi.org/10.14711/thesis-b1189944 ; http://repository.ust.hk/ir/bitstream/1783.1-7671/1/th_redirect.html
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):
Liu, Yu. “Micro-RDS study of magneto-optical effect on Bi[subscript 2]Te[subscript 3] and La[subscript 0.82]Ba[subscript 0.18]CoO[subscript 3].” 2012. Thesis, Hong Kong University of Science and Technology. Accessed April 13, 2021.
http://repository.ust.hk/ir/Record/1783.1-7671 ; https://doi.org/10.14711/thesis-b1189944 ; http://repository.ust.hk/ir/bitstream/1783.1-7671/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Liu, Yu. “Micro-RDS study of magneto-optical effect on Bi[subscript 2]Te[subscript 3] and La[subscript 0.82]Ba[subscript 0.18]CoO[subscript 3].” 2012. Web. 13 Apr 2021.
Vancouver:
Liu Y. Micro-RDS study of magneto-optical effect on Bi[subscript 2]Te[subscript 3] and La[subscript 0.82]Ba[subscript 0.18]CoO[subscript 3]. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2012. [cited 2021 Apr 13].
Available from: http://repository.ust.hk/ir/Record/1783.1-7671 ; https://doi.org/10.14711/thesis-b1189944 ; http://repository.ust.hk/ir/bitstream/1783.1-7671/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Liu Y. Micro-RDS study of magneto-optical effect on Bi[subscript 2]Te[subscript 3] and La[subscript 0.82]Ba[subscript 0.18]CoO[subscript 3]. [Thesis]. Hong Kong University of Science and Technology; 2012. Available from: http://repository.ust.hk/ir/Record/1783.1-7671 ; https://doi.org/10.14711/thesis-b1189944 ; http://repository.ust.hk/ir/bitstream/1783.1-7671/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology
17.
Fan, Shuting.
Metrology and biomedical applications for terahertz reflection spectroscopy and imaging.
Degree: 2015, Hong Kong University of Science and Technology
URL: http://repository.ust.hk/ir/Record/1783.1-78816
;
https://doi.org/10.14711/thesis-b1514517
;
http://repository.ust.hk/ir/bitstream/1783.1-78816/1/th_redirect.html
► Terahertz (1012Hz) radiation typically refers to a band of electromagnetic waves with the frequency between 0.1 to 10 THz which is non-ionizing. In this work,…
(more)
▼ Terahertz (1012Hz) radiation typically refers to a band of electromagnetic waves with the frequency between 0.1 to 10 THz which is non-ionizing. In this work, we refer to it as THz light rather than THz radiation to avoid the negative associations with the word ‘radiation’. Many materials such as plastics and ceramics are transparent to THz light, yet water is highly absorbing in the THz range. By exploiting the sensitivity of terahertz light to water, we can investigate the potential of using THz imaging for biomedical applications. Terahertz time domain spectroscopy (THz-TDS) systems are one of the most commonly used THz systems. In this thesis, we improve metrology for terahertz reflection geometry spectroscopy and imaging systems. The major achievements of this work include: 1. We developed a sample preservation technique to preserve the THz properties of excised biological tissues in the THz range which will aid the studies of medical samples in the future: ex vivo studies of tissues are needed before in vivo studies will be made. 2. We proposed an algorithm to remove the errors due to three major reasons: the amplitude fluctuation of the incident THz wave, the fibre drift induced phase delay, and the inhomogeneity of the imaging window. The results for sample characterization acquired using our proposed algorithm suffer less from spatial variations and are more accurate than conventional methods. The algorithm is potentially useful to all types of application and in this work we use it for investigating THz imaging of scar tissue and THz monitoring of transdermal drug delivery by microneedles.
Subjects/Keywords: Terahertz spectroscopy
; Biomedical engineering
; Reflectance spectroscopy
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fan, S. (2015). Metrology and biomedical applications for terahertz reflection spectroscopy and imaging. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-78816 ; https://doi.org/10.14711/thesis-b1514517 ; http://repository.ust.hk/ir/bitstream/1783.1-78816/1/th_redirect.html
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):
Fan, Shuting. “Metrology and biomedical applications for terahertz reflection spectroscopy and imaging.” 2015. Thesis, Hong Kong University of Science and Technology. Accessed April 13, 2021.
http://repository.ust.hk/ir/Record/1783.1-78816 ; https://doi.org/10.14711/thesis-b1514517 ; http://repository.ust.hk/ir/bitstream/1783.1-78816/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Fan, Shuting. “Metrology and biomedical applications for terahertz reflection spectroscopy and imaging.” 2015. Web. 13 Apr 2021.
Vancouver:
Fan S. Metrology and biomedical applications for terahertz reflection spectroscopy and imaging. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2015. [cited 2021 Apr 13].
Available from: http://repository.ust.hk/ir/Record/1783.1-78816 ; https://doi.org/10.14711/thesis-b1514517 ; http://repository.ust.hk/ir/bitstream/1783.1-78816/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Fan S. Metrology and biomedical applications for terahertz reflection spectroscopy and imaging. [Thesis]. Hong Kong University of Science and Technology; 2015. Available from: http://repository.ust.hk/ir/Record/1783.1-78816 ; https://doi.org/10.14711/thesis-b1514517 ; http://repository.ust.hk/ir/bitstream/1783.1-78816/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology
18.
Bossers, Niek (author).
The impact of high resolution surface reflectance data on the accuracy of the TROPOMI tropospheric NO2 product over the greater Rotterdam region.
Degree: 2019, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:2cec295f-51cb-4c25-94e8-7a82fc62ac26
► The Sentinel-5 Precursor satellite has a payload of the TROPOspheric Monitoring Instrument, TROPOMI.The satellite was launched in 2017 by ESA with the intended goal of…
(more)
▼ The Sentinel-5 Precursor satellite has a payload of the TROPOspheric Monitoring Instrument, TROPOMI.The satellite was launched in 2017 by ESA with the intended goal of measuring trace gases in the atmosphere.One of the products of TROPOMI is the Tropospheric NO2 column. This product is based on thespectral measurements to obtain the column abundance of NO2 in the troposphere. This product alsorelies on a-priori data and one of these a-priori datasets is the albedo dataset.The currently used dataset has a resolution of 0.5°x 0.5°, which corresponds to approximately 55 kmx 34 km at mid-latitudes. The TROPOMI pixel size is significantly smaller, 3.5 km x 7 km. Due to this large difference in resolution the discussion arises if this used dataset is sufficient for accurate results. This researchmakes a comparison between the current a-priori dataset and possible replacements. This paper makes this comparison by calculating Air Mass Factors (AMFs) using the OMI LERalbedo climatology as a reference and the two alternative high resolution surface
reflectance datasets,Sentinel-2 and Landsat-8. These surface
reflectance datasets were regridded and averaged on the corresponding TROPOMI grid. The focus area of this paper is the Greater Rotterdam region in the Nether-lands.Before these AMF calculations were done, a comparison between Sentinel-2 and Landsat-8 surfacereflectance datasets is made. This is done both on their own high resolution and regridded onto theTROPOMI grid. Above water surfaces and land covered by vegetation a bias of approximately 0.01 was present between the two high resolution surface
reflectance datasets. These differences are relatively small. The differences calculated for the datasets regridded to the TROPOMI grid were also relatively small, with a bias of 0.01 above the water and vegetation surfaces. Two cases were studied during this research: the 21st of April 2018 and the 6th/7th of May 2018. Theresults show that significant improvements can be made by using a higher resolution surface reflectancedataset. A median bias of -10.4% (-15.6%) was calculated for the 21st of April for Sentinel-2 (Landsat-8)compared to the AMFs based on the OMI albedo dataset. For May this was -3.9% (-9.3%). Furthermorethis study showed extreme AMF-biases of 68.0% overestimation and 39.8% underestimation by the OMIalbedo dataset compared to Sentinel-2, where the overestimation was observed over the greenhouses inthe Westland region and the underestimation in the rural region to the East of the domain in April.For May the underestimation was mostly observed to the West (North Sea), indicating that over regionswith a low surface
reflectance the atmospheric correction greatly influences the AMF. The comparisonbetween Landsat-8 and OMI showed similar results in the AMF differences.These findings are supported further by a recent Sentinel-5P validation study, which comparedground based observations to the TROPOMI observations. This project found an NO2 underestimationof approximately 20% for many different stations. This…
Advisors/Committee Members: Vlemmix, Tim (mentor), Levelt, Pieternel (graduation committee), Veefkind, Pepijn (graduation committee), Verhagen, Sandra (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: TROPOMI; Albedo; Air Mass Factor; Surface Reflectance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bossers, N. (. (2019). The impact of high resolution surface reflectance data on the accuracy of the TROPOMI tropospheric NO2 product over the greater Rotterdam region. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:2cec295f-51cb-4c25-94e8-7a82fc62ac26
Chicago Manual of Style (16th Edition):
Bossers, Niek (author). “The impact of high resolution surface reflectance data on the accuracy of the TROPOMI tropospheric NO2 product over the greater Rotterdam region.” 2019. Masters Thesis, Delft University of Technology. Accessed April 13, 2021.
http://resolver.tudelft.nl/uuid:2cec295f-51cb-4c25-94e8-7a82fc62ac26.
MLA Handbook (7th Edition):
Bossers, Niek (author). “The impact of high resolution surface reflectance data on the accuracy of the TROPOMI tropospheric NO2 product over the greater Rotterdam region.” 2019. Web. 13 Apr 2021.
Vancouver:
Bossers N(. The impact of high resolution surface reflectance data on the accuracy of the TROPOMI tropospheric NO2 product over the greater Rotterdam region. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Apr 13].
Available from: http://resolver.tudelft.nl/uuid:2cec295f-51cb-4c25-94e8-7a82fc62ac26.
Council of Science Editors:
Bossers N(. The impact of high resolution surface reflectance data on the accuracy of the TROPOMI tropospheric NO2 product over the greater Rotterdam region. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:2cec295f-51cb-4c25-94e8-7a82fc62ac26

Virginia Tech
19.
Jones, Justin Rodgers.
Improving Early Season Sidedress Nitrogen Rate Prescriptions for Corn.
Degree: MS, Crop and Soil Environmental Sciences, 2013, Virginia Tech
URL: http://hdl.handle.net/10919/22052
► Corn requires the most nitrogen (N) of cereal grain crops and N supply is correlated with grain yield. Canopy reflectance has been used to assess…
(more)
▼ Corn requires the most nitrogen (N) of cereal grain crops and N supply is correlated with grain yield. Canopy
reflectance has been used to assess crop N needs and to derive optimum application rates in mid-season corn. Canopy
reflectance has not been useful for N rate determination in early season corn because of low biomass and the sensing background can interfere, or overwhelm crop canopy
reflectance measures. Widespread adoption of canopy
reflectance as a basis for generating in-season corn N rates would be more likely if N rate recommendations could be made early, i.e. by the V6 growth stage. The objectives of this research were to: i) examine the influence of soil color, soil moisture, surface crop residues, and sensor orientation on normalized difference vegetation index (NDVI) readings from corn from planting through the V6 growth stage; and ii) evaluate the effect of sensor orientation and field of view at early corn growth stages on the relationship between NDVI and corn biomass, N uptake, and chlorophyll meter readings. Soil color, soil moisture, crop residue type, and sensor orientation influenced
reflectance and these factors were much more influential when sensing plants with low biomass. Canopy
reflectance was capable of differentiating between N rates in the field and altering sensor orientation did not minimize sensing background influence or improve the ability of the sensor to distinguish plant N status. Even when canopy
reflectance detected differences in crop N status, N rate prescription based on NDVI was consistently below the profitable estimated sidedress N rate.
Advisors/Committee Members: Thomason, Wade E. (committeechair), Reiter, Mark S. (committee member), Alley, Marcus M. (committee member).
Subjects/Keywords: Corn; Nitrogen; Canopy reflectance; Mid-Atlantic
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Jones, J. R. (2013). Improving Early Season Sidedress Nitrogen Rate Prescriptions for Corn. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/22052
Chicago Manual of Style (16th Edition):
Jones, Justin Rodgers. “Improving Early Season Sidedress Nitrogen Rate Prescriptions for Corn.” 2013. Masters Thesis, Virginia Tech. Accessed April 13, 2021.
http://hdl.handle.net/10919/22052.
MLA Handbook (7th Edition):
Jones, Justin Rodgers. “Improving Early Season Sidedress Nitrogen Rate Prescriptions for Corn.” 2013. Web. 13 Apr 2021.
Vancouver:
Jones JR. Improving Early Season Sidedress Nitrogen Rate Prescriptions for Corn. [Internet] [Masters thesis]. Virginia Tech; 2013. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10919/22052.
Council of Science Editors:
Jones JR. Improving Early Season Sidedress Nitrogen Rate Prescriptions for Corn. [Masters Thesis]. Virginia Tech; 2013. Available from: http://hdl.handle.net/10919/22052

University of Minnesota
20.
Tetzlaff, Michael.
Image-Based Relighting of 3D Objects from Flash Photographs.
Degree: PhD, Computer Science, 2019, University of Minnesota
URL: http://hdl.handle.net/11299/206362
► Photography is a remarkable technology that allows us to capture and reproduce the appearance of the real world. Although photographs are two-dimensional and static, their…
(more)
▼ Photography is a remarkable technology that allows us to capture and reproduce the appearance of the real world. Although photographs are two-dimensional and static, their capabilities have been extended into higher dimensions through the development of techniques like photogrammetry, image-based rendering, and image-based relighting. Such prior work, however, has struggled to support dynamic illumination of the subject while still representing specular reflections accurately, especially for subjects that exhibit heterogeneity in their appearance. The most successful results in this direction usually require thousands of images. This dissertation introduces a new paradigm for image-based relighting of 3D objects that requires no more than a few hundred flash photographs. The flash lighting configuration is conveniently found on most commodity cameras. After being processed using traditional photogrammetry, the flash images serve as a collection of virtual light sources in a relighting system, through the power of Cook-Torrance microfacet theory. This approach produces new images of 3D objects that effectively retain the photographic accuracy of the subject's color appearance from the original flash photos. The same flash images can also be used to estimate reflectance parameters that improve the accuracy of the relighting technique. This rendering method can even be used to emulate lighting conditions – both outdoor and indoor – that are very different than flash. This work proceeds to show how the intensities of point light sources derived from the collection of flash images can be chosen to effectively emulate the intended environment. Although similar results have been previously achieved using thousands of images, the method shown here can be effective with a few hundred images or less. However, this reduction is not without limitation; a shinier object requires more photographs to avoid discontinuity between the intended environment and its reflection. To address this one limitation, this work ultimately develops a fidelity metric for assessing whether reflections of individual light sources are likely to be discernible when the object is relit. This metric is a heuristic solution which estimates the magnitude of this issue by quantifying the degree of overlap in specular reflections between similar images in the dataset. It is believed to be the first work which assesses the fidelity of how highlights are depicted when an object is relit using a limited number of views. This solution is shown to be generally effective and serves as a foundation which can be built upon by future metrics.
Subjects/Keywords: appearance; backscattering; cultural heritage; fidelity; photogrammetry; reflectance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tetzlaff, M. (2019). Image-Based Relighting of 3D Objects from Flash Photographs. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/206362
Chicago Manual of Style (16th Edition):
Tetzlaff, Michael. “Image-Based Relighting of 3D Objects from Flash Photographs.” 2019. Doctoral Dissertation, University of Minnesota. Accessed April 13, 2021.
http://hdl.handle.net/11299/206362.
MLA Handbook (7th Edition):
Tetzlaff, Michael. “Image-Based Relighting of 3D Objects from Flash Photographs.” 2019. Web. 13 Apr 2021.
Vancouver:
Tetzlaff M. Image-Based Relighting of 3D Objects from Flash Photographs. [Internet] [Doctoral dissertation]. University of Minnesota; 2019. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/11299/206362.
Council of Science Editors:
Tetzlaff M. Image-Based Relighting of 3D Objects from Flash Photographs. [Doctoral Dissertation]. University of Minnesota; 2019. Available from: http://hdl.handle.net/11299/206362

University of Arizona
21.
Rancourt, James Daniel, 1941-.
DEVELOPMENT OF A SPECTROMETER FOR THE ELECTROREFLECTANCE SPECTROSCOPY OF METALS
.
Degree: 1974, University of Arizona
URL: http://hdl.handle.net/10150/288254
Subjects/Keywords: Spectrometer.;
Specular reflectance.
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Rancourt, James Daniel, 1. (1974). DEVELOPMENT OF A SPECTROMETER FOR THE ELECTROREFLECTANCE SPECTROSCOPY OF METALS
. (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/288254
Chicago Manual of Style (16th Edition):
Rancourt, James Daniel, 1941-. “DEVELOPMENT OF A SPECTROMETER FOR THE ELECTROREFLECTANCE SPECTROSCOPY OF METALS
.” 1974. Doctoral Dissertation, University of Arizona. Accessed April 13, 2021.
http://hdl.handle.net/10150/288254.
MLA Handbook (7th Edition):
Rancourt, James Daniel, 1941-. “DEVELOPMENT OF A SPECTROMETER FOR THE ELECTROREFLECTANCE SPECTROSCOPY OF METALS
.” 1974. Web. 13 Apr 2021.
Vancouver:
Rancourt, James Daniel 1. DEVELOPMENT OF A SPECTROMETER FOR THE ELECTROREFLECTANCE SPECTROSCOPY OF METALS
. [Internet] [Doctoral dissertation]. University of Arizona; 1974. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10150/288254.
Council of Science Editors:
Rancourt, James Daniel 1. DEVELOPMENT OF A SPECTROMETER FOR THE ELECTROREFLECTANCE SPECTROSCOPY OF METALS
. [Doctoral Dissertation]. University of Arizona; 1974. Available from: http://hdl.handle.net/10150/288254

Duke University
22.
Dhar, Sulochana.
Development of Custom Imaging Arrays for Biomedical Spectral Imaging Systems
.
Degree: 2012, Duke University
URL: http://hdl.handle.net/10161/6153
► The visible wavelength range has proven to be a useful spectral window for observing biophotonic events such as absorption in materials (oxy-hemoglobin and deoxy-hemoglobin),…
(more)
▼ The visible wavelength range has proven to be a useful spectral window for observing biophotonic events such as absorption in materials (oxy-hemoglobin and deoxy-hemoglobin), light scattering in biological tissue, and biochemical and fluorescence reactions. Diffuse
reflectance spectroscopy (DRS) is a technique that utilizes the diffuse
reflectance spectra from turbid media (e.g. biological tissue) to quantify the optical properties (e.g. absorption and scattering) of those media. DRS in the visible wavelength range can be utilized to optically differentiate between healthy and cancerous tissue, and thus has applications in intra-operative tumor margin assessment. The footprint of conventional DRS systems used for intra-operative tissue margin assessment prohibits their widespread use inside the surgical suite, where space is at a premium. Conventional quantitative DRS imaging systems utilize unwieldy fiber probes, cooled CCD cameras, and imaging spectrographs for imaging tissue margins. These system components not only increase system size, limiting their use inside the surgical suite, but also limit imaging resolution, imaging speed, and increase overall system cost. Silicon is an attractive candidate for the development of compact, customized photodetector elements for biophotonic imaging applications such as intra-operative tumor margin assessment using DRS. This thesis deals with the design and development of a customized DRS imaging probe composed of custom silicon imaging arrays for intra-operative breast tumor margin assessment. The first generation of the customized imaging probe consisted of a 4x4 array of annular epitaxial Si pn junction photodiodes (PDs) with a measured responsivity of 0.28 A/W - 0.37 A/W for λ= 470 nm - 600 nm, and a measured dark current density of 1.456 nA/cm2 - 4.48 nA/cm2. The imaging array was used to detect diffuse
reflectance when placed in direct contact with tissue. A quartz light delivery tube coupled to a xenon lamp was optimized to deliver light to the tissue through the holes of the annular imaging array across a 256 mm2 imaging area. The pixel-to-pixel spacing in the imaging array was 4.5 mm, the highest resolution reported to date for a multi-pixel DRS probe. This resolution was limited by pixel-to-pixel optical crosstalk, which was theoretically calculated and experimentally characterized, to validate the theoretical model for future designs. This first generation probe was successfully tested on diffuse
reflectance standards, tissue-mimicking phantoms, animal tissue, and human breast tissue, and yielded an SNR of 30 dB - 55 dB on all measured specimens. The next generation of the customized imaging probe consisted of a 4x4 array of annular thin-film Si pn junction PDs heterogeneously bonded to a transparent Pyrex substrate, to enable integration with a guided wave light delivery system. The 4x4 thin-film PD array design and development was prototyped using a 1x2 thin-film PD array heterogeneously bonded to a Pyrex substrate. The responsivity…
Advisors/Committee Members: Jokerst, Nan M (advisor).
Subjects/Keywords: Electrical engineering;
Diffuse reflectance spectroscopy;
Photodetectors
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dhar, S. (2012). Development of Custom Imaging Arrays for Biomedical Spectral Imaging Systems
. (Thesis). Duke University. Retrieved from http://hdl.handle.net/10161/6153
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):
Dhar, Sulochana. “Development of Custom Imaging Arrays for Biomedical Spectral Imaging Systems
.” 2012. Thesis, Duke University. Accessed April 13, 2021.
http://hdl.handle.net/10161/6153.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dhar, Sulochana. “Development of Custom Imaging Arrays for Biomedical Spectral Imaging Systems
.” 2012. Web. 13 Apr 2021.
Vancouver:
Dhar S. Development of Custom Imaging Arrays for Biomedical Spectral Imaging Systems
. [Internet] [Thesis]. Duke University; 2012. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10161/6153.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dhar S. Development of Custom Imaging Arrays for Biomedical Spectral Imaging Systems
. [Thesis]. Duke University; 2012. Available from: http://hdl.handle.net/10161/6153
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo
23.
Kravchenko, Boris.
Balancing Fidelity and Performance in Iridal Light Transport Simulations Aimed at Interactive Applications.
Degree: 2016, University of Waterloo
URL: http://hdl.handle.net/10012/11085
► Specific light transport models based on first-principles approaches have been proposed for complex organic materials such as human skin and blood. The driving force behind…
(more)
▼ Specific light transport models based on first-principles approaches have been proposed for complex organic materials such as human skin and blood. The driving force behind these efforts has been the high-fidelity reproduction of material appearance attributes without one having to rely on the manipulation of ad hoc parameters. These models, however, are usually considered excessively time consuming for rendering applications requiring interactive rates. In this thesis, we address this open problem with respect to one of the most challenging of these organic materials, namely the human iris. More specifically, we present a framework that consists in the careful configuration of algorithms employed by a biophysically-based iridal light transport model on the CUDA (Compute Unified Device Architecture) parallel computing platform. We then investigate the sensitivity of iridal appearance attributes to key model running parameters, namely spectral resolution and number of sample rays, in order to obtain a practical balance between appearance fidelity and performance on this platform. The results of our investigation indicate that predictive light transport simulations can be effectively employed in the generation of iridal images that are not only believable, but also controlled by biophysically meaningful parameters. Although our investigation is centered at the human iris, we believe that it can be viewed as a proof of concept, and the proposed configuration strategies and parameter space explorations can be employed to obtain similar results for other organic materials.
Subjects/Keywords: Reflectance modeling; Interactive modeling; GPU techniques
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kravchenko, B. (2016). Balancing Fidelity and Performance in Iridal Light Transport Simulations Aimed at Interactive Applications. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/11085
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):
Kravchenko, Boris. “Balancing Fidelity and Performance in Iridal Light Transport Simulations Aimed at Interactive Applications.” 2016. Thesis, University of Waterloo. Accessed April 13, 2021.
http://hdl.handle.net/10012/11085.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kravchenko, Boris. “Balancing Fidelity and Performance in Iridal Light Transport Simulations Aimed at Interactive Applications.” 2016. Web. 13 Apr 2021.
Vancouver:
Kravchenko B. Balancing Fidelity and Performance in Iridal Light Transport Simulations Aimed at Interactive Applications. [Internet] [Thesis]. University of Waterloo; 2016. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10012/11085.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kravchenko B. Balancing Fidelity and Performance in Iridal Light Transport Simulations Aimed at Interactive Applications. [Thesis]. University of Waterloo; 2016. Available from: http://hdl.handle.net/10012/11085
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
24.
Menke, Ethan J.
Using
spectral reflectance in soybean breeding: evaluating genotypes for
soybean sudden death disease resistance and grain
yield.
Degree: MS, Department of
Agronomy, 2018, Kansas State University
URL: http://hdl.handle.net/2097/38542
► Sudden Death Syndrome (SDS) in soybean, (Glycine max ( L.) Merr.) caused by Fusarium virguliforme, is an increasing problem in commercial soybean production due to…
(more)
▼ Sudden Death Syndrome (SDS) in soybean, (Glycine max (
L.) Merr.) caused by Fusarium virguliforme, is an increasing
problem in commercial soybean production due to the yield loss
associated with the disease. Screening for genetic resistance
requires extensive visual evaluations. Canopy spectral
reflectance
may be an indirect tool for selection of SDS resistance as well as
grain yield in large segregating populations. The objective of this
study was to estimate SDS resistance and seed yield in large
diverse soybean populations using canopy spectral
reflectance.
Spectral
reflectance, disease index, maturity and yield were
measured on two populations consisting of 160 nested association
mapping recombinant inbred lines and checks; and 140 commercial
cultivars with checks. Populations were grown in three environments
in 2015 and 2016 with historic SDS disease pressure. Entry,
environment, and entry by environment sources of variation were
significant for disease index, yield, maturity and spectral
reflectance. Changes in season average
reflectance were correlated
to disease index, yield and maturity. Estimation models of disease
index, yield and maturity were created with season averages as well
as individual day readings for both populations. Season average and
individual day models accounted for 11% to 77% of the phenotypic
variation in disease and 41% to 93% of yield variation when
measurements were taken at the height of disease pressure. Models
for disease index and yield models were able to predict significant
portions of the phenotypic variation between entries at most
environments. These results suggest that it may be possible to
estimate resistance to SDS and grain yield in soybeans using
spectral
reflectance in breeding populations.
Advisors/Committee Members: William T. Schapaugh Jr.
Subjects/Keywords: Spectral
reflectance; Soybean
breeding; Disease
resistance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Menke, E. J. (2018). Using
spectral reflectance in soybean breeding: evaluating genotypes for
soybean sudden death disease resistance and grain
yield. (Masters Thesis). Kansas State University. Retrieved from http://hdl.handle.net/2097/38542
Chicago Manual of Style (16th Edition):
Menke, Ethan J. “Using
spectral reflectance in soybean breeding: evaluating genotypes for
soybean sudden death disease resistance and grain
yield.” 2018. Masters Thesis, Kansas State University. Accessed April 13, 2021.
http://hdl.handle.net/2097/38542.
MLA Handbook (7th Edition):
Menke, Ethan J. “Using
spectral reflectance in soybean breeding: evaluating genotypes for
soybean sudden death disease resistance and grain
yield.” 2018. Web. 13 Apr 2021.
Vancouver:
Menke EJ. Using
spectral reflectance in soybean breeding: evaluating genotypes for
soybean sudden death disease resistance and grain
yield. [Internet] [Masters thesis]. Kansas State University; 2018. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/2097/38542.
Council of Science Editors:
Menke EJ. Using
spectral reflectance in soybean breeding: evaluating genotypes for
soybean sudden death disease resistance and grain
yield. [Masters Thesis]. Kansas State University; 2018. Available from: http://hdl.handle.net/2097/38542

Massey University
25.
Sanches, Ieda Del'Arco.
Hyperspectral proximal sensing of the botanical composition and nutrient content of New Zealand pastures : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Earth Science
.
Degree: 2009, Massey University
URL: http://hdl.handle.net/10179/1194
► The potential of hyperspectral proximal sensing to quantify sward characteristics important in making critical decisions on the management of sheep and dairy pastures in New…
(more)
▼ The potential of hyperspectral proximal sensing to quantify sward characteristics
important in making critical decisions on the management of sheep and dairy pastures in
New Zealand has been investigated.
Hyperspectral data were acquired using an ASD FieldSpec® Pro FR
spectroradiometer attached to the Canopy Pasture Probe (CAPP). The CAPP was
developed to enable the collection of in situ reflectance data from New Zealand pasture
canopies independent of ambient light conditions. A matt white ceramic tile was selected as
a reflectance standard to be used with the CAPP, after testing a variety of materials. Pasture
reflectance factor spectra between 350-2500 nm (with spectral resolutions of 3 nm between
350-1000 nm and 10 nm between 1000-2500 nm) and pasture samples were collected from
six hill country and lowland areas, across all seasons (August 2006 to September 2007) in a
number of regions in the North Island of New Zealand.
After pre-processing (e.g. spectral averaging, de-stepping, elimination of noisy
wavelengths, smoothing) the spectral data collected from sites were correlated against
pasture botanical composition (expressed as proportions of grass, legume and weed) and
pasture nutrients (nitrogen, phosphorus, potassium, calcium, magnesium, sodium and
sulphur) expressed in percentage of dry matter (%) and amount (kg ha-1) using partial least
squares regressions (PLSR). The accuracy and precision of the calibrations were tested
using either the full cross-validation leave-one-out method or testing datasets. Regressions
were carried out using the reflectance factor data per se and after mathematical
transformation, including first derivative, absorbance and continuum-removed spectra.
Overall best results were obtained using the first derivative data. The quality of predictions
varied greatly with the pasture attribute, site and season.
Some reasonable results were achieved for the prediction of pasture grass and
legume proportions when analysing samples collected during autumn (grass: R2 > 0.81 and
SD/RMSEP 2.3 and legume: R2 > 0.80 and SD/RMSEP 2.2), but predicting pasture
weed content was poor for all sites and seasons (R2 = 0.44 and SD/RMSEP = 1.2). The
inaccurate predictions might be explained by the fact that the diversity found in the field
and observed in the pasture spectral data was not taken into account in the pasture botanical
separation.
The potential for using proximal sensing techniques to predict pasture nutrients in
situ was confirmed, with the sensing of pasture N, P and K increased by the procedure of
separating the data according to the season of the year. The full potential of the technology
will only be realised if a substantial dataset representing all the variability found in the field
is gathered. The importance of obtaining representative datasets that embrace all the
biophysical factors (e.g. pasture type, canopy structure) likely to affect the relat ionship,
when building prediction calibrations, was highlighted in this research by the variance in
…
Subjects/Keywords: Reflectance;
Pasture nutrients
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sanches, I. D. (2009). Hyperspectral proximal sensing of the botanical composition and nutrient content of New Zealand pastures : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Earth Science
. (Thesis). Massey University. Retrieved from http://hdl.handle.net/10179/1194
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):
Sanches, Ieda Del'Arco. “Hyperspectral proximal sensing of the botanical composition and nutrient content of New Zealand pastures : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Earth Science
.” 2009. Thesis, Massey University. Accessed April 13, 2021.
http://hdl.handle.net/10179/1194.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sanches, Ieda Del'Arco. “Hyperspectral proximal sensing of the botanical composition and nutrient content of New Zealand pastures : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Earth Science
.” 2009. Web. 13 Apr 2021.
Vancouver:
Sanches ID. Hyperspectral proximal sensing of the botanical composition and nutrient content of New Zealand pastures : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Earth Science
. [Internet] [Thesis]. Massey University; 2009. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10179/1194.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sanches ID. Hyperspectral proximal sensing of the botanical composition and nutrient content of New Zealand pastures : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Earth Science
. [Thesis]. Massey University; 2009. Available from: http://hdl.handle.net/10179/1194
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Sydney
26.
Durmus, Dorukalp.
Optimising Light Source Spectrum to Reduce the Energy Absorbed by Objects
.
Degree: 2017, University of Sydney
URL: http://hdl.handle.net/2123/17844
► Light is used to illuminate objects in the built environment. Humans can only observe light reflected from an object. Light absorbed by an object turns…
(more)
▼ Light is used to illuminate objects in the built environment. Humans can only observe light reflected from an object. Light absorbed by an object turns into heat and does not contribute to visibility. Since the spectral output of the new lighting technologies can be tuned, it is possible to imagine a lighting system that detects the colours of objects and emits customised light to minimise the absorbed energy. Previous optimisation studies investigated the use of narrowband LEDs to maximise the efficiency and colour quality of a light source. While these studies aimed to tune a white light source for general use, the lighting system proposed here minimises the energy consumed by lighting by detecting colours of objects and emitting customised light onto each coloured part of the object. This thesis investigates the feasibility of absorption-minimising light source spectra and their impact on the colour appearance of objects and energy consumption. Two computational studies were undertaken to form the theoretical basis of the absorption-minimising light source spectra. Computational simulations show that the theoretical single-peak spectra can lower the energy consumption up to around 38 % to 62 %, and double-peak test spectra can result in energy savings up to 71 %, without causing colour shifts. In these studies, standard reference illuminants, theoretical test spectra and coloured test samples were used. These studies are followed by the empirical evidence collected from two psychophysical experiments. Data from the experiments show that observers find the colour appearance of objects equally natural and attractive under spectrally optimised spectra and reference white light sources. An increased colour difference, to a certain extent, is found acceptable, which allows even higher energy savings. However, the translucent nature of some objects may negatively affect the results.
Subjects/Keywords: Optimisation;
colour;
lighting;
spectrum;
reflectance;
energy efficiency
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Durmus, D. (2017). Optimising Light Source Spectrum to Reduce the Energy Absorbed by Objects
. (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/17844
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):
Durmus, Dorukalp. “Optimising Light Source Spectrum to Reduce the Energy Absorbed by Objects
.” 2017. Thesis, University of Sydney. Accessed April 13, 2021.
http://hdl.handle.net/2123/17844.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Durmus, Dorukalp. “Optimising Light Source Spectrum to Reduce the Energy Absorbed by Objects
.” 2017. Web. 13 Apr 2021.
Vancouver:
Durmus D. Optimising Light Source Spectrum to Reduce the Energy Absorbed by Objects
. [Internet] [Thesis]. University of Sydney; 2017. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/2123/17844.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Durmus D. Optimising Light Source Spectrum to Reduce the Energy Absorbed by Objects
. [Thesis]. University of Sydney; 2017. Available from: http://hdl.handle.net/2123/17844
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New South Wales
27.
Song, Yang.
Dielectric thin film applications for silicon solar cells.
Degree: Photovoltaics & Renewable Energy Engineering, 2009, University of New South Wales
URL: http://handle.unsw.edu.au/1959.4/44486
;
https://unsworks.unsw.edu.au/fapi/datastream/unsworks:7801/SOURCE01?view=true
► Dielectric thin films have a long history in silicon photovoltaics. Due to the specific physical properties, they can function as passivation layer in solar cells.…
(more)
▼ Dielectric thin films have a long history in silicon photovoltaics. Due to the specific physical properties, they can function as passivation layer in solar cells. Also, they can be used as antireflection coating layers on top of the devices. They can improve the back surface
reflectance if proper dielectric layers combination is used. Whats more, they can protect areas by masking during chemical etching, diffusion, metallization among the whole fabrication process.Crystalline silicon solar cell can be passivated by two ways: one is to deposit dielectric thin films to saturate the dangling bonds; the other is to introduce surface electrical field and repel back the minority carriers. This thesis explores thermally grown SiO2 and sputtered Si3N4(:H) to passivate n-type and thermal evaporation AlF3 to passivate p-type Float Zone silicon wafers, respectively. Sputtering is a cheap passivation method to replace PECVD in industry usage, but all sputtered samples are more likely to have encountered surface damage from neutral Ar and secondary electrons, both coming from the sputtered target. AlF3/SiO2 multi-layer stack is a negative charge combination; p inversion layer will form on the wafer surface.Light trapping is an important part in solar cell research work. In order to enhance the
reflectance and improve the absorption possibility of near infrared photons, especially for high efficiency PERL cell application, the back surface structure is optimized in this work. Results show SiO2/Ag is a very good choice to replace SiO2/Al back reflectors. The maximum back surface
reflectance is 97.82%. At the same time, SiO2/Ag has excellent internal angle dependence of
reflectance, which is beneficial for surface textured cells. A ZnS/MgF2/SiO2/Al(Ag) superlattice can improve the back
reflectance, but it is sensitive to incident angle inside the silicon wafer. If planar wafers are used to investigate all kinds of back reflectors, and an 8 degrees incident angle is fixed for typical spectrometry measurement, the results are easy to predict by Wvase software simulation. If a textured surface is considered, the light path inside the silicon wafer is very complicated and hard to calculate and simulate. The best way to evaluate the result is through experiment.
Advisors/Committee Members: Green, Martin, Photovoltaics & Renewable Energy Engineering, Faculty of Engineering, UNSW.
Subjects/Keywords: Passivation; Back reflectance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Song, Y. (2009). Dielectric thin film applications for silicon solar cells. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/44486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:7801/SOURCE01?view=true
Chicago Manual of Style (16th Edition):
Song, Yang. “Dielectric thin film applications for silicon solar cells.” 2009. Masters Thesis, University of New South Wales. Accessed April 13, 2021.
http://handle.unsw.edu.au/1959.4/44486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:7801/SOURCE01?view=true.
MLA Handbook (7th Edition):
Song, Yang. “Dielectric thin film applications for silicon solar cells.” 2009. Web. 13 Apr 2021.
Vancouver:
Song Y. Dielectric thin film applications for silicon solar cells. [Internet] [Masters thesis]. University of New South Wales; 2009. [cited 2021 Apr 13].
Available from: http://handle.unsw.edu.au/1959.4/44486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:7801/SOURCE01?view=true.
Council of Science Editors:
Song Y. Dielectric thin film applications for silicon solar cells. [Masters Thesis]. University of New South Wales; 2009. Available from: http://handle.unsw.edu.au/1959.4/44486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:7801/SOURCE01?view=true

University of New South Wales
28.
Shwe, Chit.
Differential reflectance spectroscopy of semiconductors.
Degree: Physics, 1992, University of New South Wales
URL: http://handle.unsw.edu.au/1959.4/55486
;
https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37824/SOURCE01?view=true
► This thesis describes the development of Differential Reflectance (DR) Spectroscopyof semiconductors. While other modulation spectroscopies have found wideapplications in semiconductor science and technology, the DR…
(more)
▼ This thesis describes the development of Differential
Reflectance (DR) Spectroscopyof semiconductors. While other modulation spectroscopies have found wideapplications in semiconductor science and technology, the DR technique, introducedas early as 1969, concentrated mostly on the study of metallic compounds. In thiswork, DR spectroscopy was applied to study semiconductors and semiconductormicrostructures relying on intrinsic or extrinsic spatial inhomogeneities present on orbelow the semiconductor surface.Two types of DR spectrometer were designed and constructed, and they were appliedto study various ID-V and IT-VI compound semiconductors. These studies revealedthat DR spectra of as-grown semiconductors exhibited sharp derivative-like featuresas a result of intrinsic inhomogeneities in various semiconductor parameters, such assurface field, strain, alloy composition, carrier concentration and layer thickness.The applications of DR spectroscopy for the determination of critical point energies,quantised energy states, alloy composition, carrier concentration and layer thicknesswere demonstrated on semiconductor quantum wells and heterostructures.In the case of extrinsic (or intentionally introduced) inhomogeneities, DRspectroscopy was found to be a sensitive technique to study the damage induced byvarious surface treatments which are commonly employed in semiconductortechnology. The DR technique involved modifying one half of the sample, forexample by ion implantation, hydrogenation or plasma-etching, while the other halfwas left unaltered to remain as a reference. When the reflectivity difference betweenthe two halves was measured, DR signals provided useful information on the effectsof such surface treatments.DR spectroscopy was also applied to profile the depth distribution of damage insemiconductors. Damage in GaAs was induced by various ion-assisted processes anddamage profiles were obtained with a depth resolution of -60 A. The process ofprofiling involved a stepwise removal of the damaged layer and then, after each etchremoval, measuring the integrated area under the DR spectrum profile in a narrowspectral region around the B1 + 4 1 critical point. The profiling of damage covering awide range of damage levels and depths was demonstrated using this technique.
Advisors/Committee Members: Gal, Mike, Physics, Faculty of Science, UNSW.
Subjects/Keywords: Semiconductors; Reflectance spectroscopy
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Shwe, C. (1992). Differential reflectance spectroscopy of semiconductors. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/55486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37824/SOURCE01?view=true
Chicago Manual of Style (16th Edition):
Shwe, Chit. “Differential reflectance spectroscopy of semiconductors.” 1992. Doctoral Dissertation, University of New South Wales. Accessed April 13, 2021.
http://handle.unsw.edu.au/1959.4/55486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37824/SOURCE01?view=true.
MLA Handbook (7th Edition):
Shwe, Chit. “Differential reflectance spectroscopy of semiconductors.” 1992. Web. 13 Apr 2021.
Vancouver:
Shwe C. Differential reflectance spectroscopy of semiconductors. [Internet] [Doctoral dissertation]. University of New South Wales; 1992. [cited 2021 Apr 13].
Available from: http://handle.unsw.edu.au/1959.4/55486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37824/SOURCE01?view=true.
Council of Science Editors:
Shwe C. Differential reflectance spectroscopy of semiconductors. [Doctoral Dissertation]. University of New South Wales; 1992. Available from: http://handle.unsw.edu.au/1959.4/55486 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37824/SOURCE01?view=true

University of Texas – Austin
29.
Bailey, Maria Jimenez.
Depth-resolved measurements in multi-layer scattering media using linearly and elliptically polarized reflectance spectroscopy.
Degree: PhD, Biomedical engineering, 2016, University of Texas – Austin
URL: http://hdl.handle.net/2152/41720
► Optical reflectance spectroscopy is a non-invasive tool that can provide quantitative information on tissue morphology and biochemistry. However, interpreting the depth-dependent signals from multi-layer tissue…
(more)
▼ Optical
reflectance spectroscopy is a non-invasive tool that can provide quantitative information on tissue morphology and biochemistry. However, interpreting the depth-dependent signals from multi-layer tissue can be challenging as optical signatures are from a range of depths. The focus of this dissertation is on the development of light-based systems for the depth-resolved characterization of multi-layered tissue. Specifically, this dissertation concentrates on the assessment of polarized
reflectance spectroscopy (PRS) with linearly and elliptically polarized light. PRS is a form of elastic scattering spectroscopy that relies on polarization gating to selectively isolate polarization maintaining photons in order to probe superficial depths. Polarization gating relies on the observation that as light travels deeper into a turbid medium and undergoes scattering, the incident polarization will become depolarized. Polarization-sensitive techniques for imaging and spectroscopy have received attention for their relatively simple and low-cost instrumentation to favorably collect either superficial or deep penetration photons. In this dissertation, I will present a fiber optic probe that combines polarization gating with linearly polarized light and an oblique detection geometry via multiple beveled collection fibers to detect scattering within various depths in tissue. The performance of the oblique polarized
reflectance spectroscopy (OPRS) probe was evaluated in a clinical trial of oral cavity cancer. I will also discuss in this dissertation a new system based on elliptical polarization. The probing depth of elliptical polarized
reflectance spectroscopy (EPRS) was assessed in turbid media by tuning the ellipticity of polarized light.
Advisors/Committee Members: Sokolov, Konstantin V. (Associate professor) (advisor), Dunn, Andrew (committee member), MacAulay, Calum (committee member), Markey, Mia (committee member), Rylander, H. Grady (committee member).
Subjects/Keywords: Polarization; Reflectance spectroscopy; Depth-sensitive tissue measurements
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bailey, M. J. (2016). Depth-resolved measurements in multi-layer scattering media using linearly and elliptically polarized reflectance spectroscopy. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/41720
Chicago Manual of Style (16th Edition):
Bailey, Maria Jimenez. “Depth-resolved measurements in multi-layer scattering media using linearly and elliptically polarized reflectance spectroscopy.” 2016. Doctoral Dissertation, University of Texas – Austin. Accessed April 13, 2021.
http://hdl.handle.net/2152/41720.
MLA Handbook (7th Edition):
Bailey, Maria Jimenez. “Depth-resolved measurements in multi-layer scattering media using linearly and elliptically polarized reflectance spectroscopy.” 2016. Web. 13 Apr 2021.
Vancouver:
Bailey MJ. Depth-resolved measurements in multi-layer scattering media using linearly and elliptically polarized reflectance spectroscopy. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2016. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/2152/41720.
Council of Science Editors:
Bailey MJ. Depth-resolved measurements in multi-layer scattering media using linearly and elliptically polarized reflectance spectroscopy. [Doctoral Dissertation]. University of Texas – Austin; 2016. Available from: http://hdl.handle.net/2152/41720

Oklahoma State University
30.
O'Neill, Charlotte Faye.
Utilization of near Infrared Reflectance Spectroscopy for the Evaluation and Characterization of Barley in Western Canada.
Degree: Animal Science, 2013, Oklahoma State University
URL: http://hdl.handle.net/11244/15048
► The first study evaluated near infrared reflectance spectroscopy (NIRS) for the determination of barley silage DM on as-is samples using either a commodity specific or…
(more)
▼ The first study evaluated near infrared
reflectance spectroscopy (NIRS) for the determination of barley silage DM on as-is samples using either a commodity specific or broad based equation. A second study was conducted to evaluate a commercial NIRS prediction equation for barley grain, examining the nutrients of DM, CP and starch. Barley samples were selected as HIGH, MID or LOW for each nutrient group and the equation was tested using all samples or only the selected samples. Finally, a third study was conducted to evaluate NIRS as a selection tool for barley grain and the relationship between nutrient composition and digestion kinetics. The results of the first study indicated that NIRS accurately predicts the DM of as-is barley silage (R2 = 0.98, p < 0.05) using either a commodity specific or broad based equation. The second experiment indicates NIRS can accurately predict the DM and CP (R2 > 0.50, p < 0.05), however did not accurately predict starch content of barley grain (R2 �� 0.21, p < 0.05). The third experiment indicates that NIRS holds promise as a selection tool for barley grain quality and a relationship exists being nutrient content and digestion kinetics. There was a significant relationship between the DM content of the sample and the rate of fermentation with LOW DM samples having a faster rate of fermentation than the MID and HIGH (p < 0.05). Gas production of LOW DM samples was greater between 8 and 23 hours of incubation compared to the HIGH and MID (p < 0.05). The MID CP had greater gas production (mL/g of substrate DM, p �� 0.05) than the HIGH range, with LOW being intermediate. Correlations between the NIRS and lab determined chemical constituents and the gas production kinetics were examined. DM was negatively correlated (p �� 0.05) with k and lag when measured with NIRS or in a lab, and CP was significantly (p �� 0.05) negatively correlated with cumulative gas production (NIRS r = -0.31, lab r = -0.31), k (NIRS r = 0.48, lab r = 0.47), and lag (NIRS r = 0.30, lab r = 0.37).
Advisors/Committee Members: Krehbiel, Clinton (advisor), Step, D. L. (committee member), Lalman, David (committee member).
Subjects/Keywords: barley; cattle; near infrared reflectance spectroscopy; nirs
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
O'Neill, C. F. (2013). Utilization of near Infrared Reflectance Spectroscopy for the Evaluation and Characterization of Barley in Western Canada. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/15048
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):
O'Neill, Charlotte Faye. “Utilization of near Infrared Reflectance Spectroscopy for the Evaluation and Characterization of Barley in Western Canada.” 2013. Thesis, Oklahoma State University. Accessed April 13, 2021.
http://hdl.handle.net/11244/15048.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
O'Neill, Charlotte Faye. “Utilization of near Infrared Reflectance Spectroscopy for the Evaluation and Characterization of Barley in Western Canada.” 2013. Web. 13 Apr 2021.
Vancouver:
O'Neill CF. Utilization of near Infrared Reflectance Spectroscopy for the Evaluation and Characterization of Barley in Western Canada. [Internet] [Thesis]. Oklahoma State University; 2013. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/11244/15048.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
O'Neill CF. Utilization of near Infrared Reflectance Spectroscopy for the Evaluation and Characterization of Barley in Western Canada. [Thesis]. Oklahoma State University; 2013. Available from: http://hdl.handle.net/11244/15048
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
◁ [1] [2] [3] [4] [5] … [28] ▶
.