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Dissertations / Theses on the topic 'Light effect'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Hayakawa, M., T. Kinoshita, and A. I. Sanda. "Hadronic Light-by-Light Scattering Effect on Muon g -2." The American Physical Society, 1995. http://hdl.handle.net/2237/7156.

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2

Mykytyuk, O. Yu, О. І. Olar, and T. V. Biryukova. "Effect of light on human health." Thesis, БДМУ, 2019. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/19204.

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3

Grant, Robert Wallace. "A UV Zeeman-effect polarizer." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24674.

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It is shown that light emitted by mercury vapour at 253.7 nm can be polarized by passing the light through mercury absorption gas embedded in a magnetic field which is transverse to the direction of propagation of the light. The absorption lines of the mercury are split by the Zeeman effect, so that the absorber has an absorption coefficient which depends on both the polarization and wavelength of the transmitted light. A complete theory for the Hg²⁰² isotope is presented and the results are compared to measurements made with a natural mercury emitter and absorber. The observations are in qua

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4

Gwinner, Michael Christian. "High-performance light-emitting polymer field-effect transistors." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610236.

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5

Buisson, Daniel Joseph. "Anatomical and morphological responses of papaya, Carica papaya L., to various light conditions." FIU Digital Commons, 1991. http://digitalcommons.fiu.edu/etd/1817.

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Plants that develop under foliar shade encounter both low photosynthetically active radiation (PAR) and low red to far red ratios (R:FR). Both of these factors are important in determining developmental responses to shade. Papaya (Carica papaya L.) seedlings grown under filtered shade (low PAR and low R:FR) were compared with seedlings grown under neutral shade (low PAR with R:FR similar to that of full sunlight), and high light (moderate PAR with R:FR similar to that of full sunlight). The results indicated that papaya exhibits a light seeking strategy as evidenced by morphological and anatom

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6

Matelon, R. J. "The interaction of light with periodic magnetic structures." Thesis, Coventry University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289100.

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7

Dumitru, Alina Gabriela. "Quantum theory of light scattering at finite temperature." Thesis, Nottingham Trent University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241832.

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8

Jokiel, Paul L. "The Photobiology of the Reef Coral Pocillopora damicornis and Symbiotic Zooxanthellae." Thesis, University of Hawai'i, Honolulu, 1985. http://hdl.handle.net/10125/15318.

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Statement of purpose: The scope of this dissertation was restricted to exemplary studies on the effects of spectrum, intensity and modulation (as described above) of the photic environment of the common reef coral Pocillopora damicornis and its symbiotic dinoflagellate algae. Various aspects of its biology were investigated. In some cases direct comparison was wade with othar species to emphasize similarities or differences. The central hypothesis of this dissertation can be stated as follows: Subtle changes in the spectrum, intensity and modulation of the natural photic environment can produc

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9

Doyle, Colleen Elizabeth. "Effect of Short-Term Light Exposure on Alertness." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524088785098075.

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10

Lafont, O., S. M. H. Luk, P. Lewandowski, et al. "Controlling the optical spin Hall effect with light." AMER INST PHYSICS, 2017. http://hdl.handle.net/10150/623050.

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The optical spin Hall effect is a transport phenomenon of exciton polaritons in semiconductor microcavities, caused by the polaritonic spin-orbit interaction, which leads to the formation of spin textures. The control of the optical spin Hall effect via light injection in a double microcavity is demonstrated. Angular rotations of the polarization pattern up to 22 degrees are observed and compared to a simple theoretical model. The device geometry is responsible for the existence of two polariton branches which allows a robust independent control of the polariton spin and hence the polarization

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11

Ladin, Loren Guerrero 1959. "Effect of ultraviolet light on reproduction in Hydra littoralis." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277085.

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The "DNA Damage Hypothesis" pertaining to the evolution of sex was tested using Hydra littoralis. DNA damage was produced by irradiating whole live hydra with ultraviolet light. A curve of uv light dosage vs. survival was constructed. Estimations of threshold fluence and LD50 were made from the survival curve. In four separate experiments, using various combinations of environmental temperatures, uv doses, and number of doses, frequencies of asexual and sexual reproduction were observed and compared. The hydra that received uv treatments did not show an increase in the consequent amount of sex

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12

Au, Yat-Yin. "Light scattering studies of metallic magnetic microstructures." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1141842225.

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13

Marmon, Jason Kendrick. "Light-matter interactions in semiconductor nanowires| Light-effect transistor and light-induced changes in electron-phonon coupling and electrical characteristics." Thesis, The University of North Carolina at Charlotte, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10243428.

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<p> This dissertation explores three related embodiments of light–matter interactions at the micro– and nano–scales, and is focused towards tangible device applications. The first topic provides a fundamentally different transistor or electronic switch mechanism, which is termed a light–effect transistor (LET). The LET, unlike exotic techniques, provides a practical and viable approach using existing fabrication processes. Electronic devices at the nanoscale operate within the ballistic regime, where the dominate source of energy loss comes from impurity scattering. As

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14

Ridha, Hashem M. "The effect of using variable curing light types and intensities on the parameters of a mathematical model that predicts the depth of the cure of light-activated dental composites." Connect to resource online, 2009. http://hdl.handle.net/1805/2082.

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Thesis (M.S.D.)--Indiana University School of Dentistry, 2009.<br>Title from PDF t.p. (viewed Feb. 5, 2010) Advisor(s): John A. Levon, Chair of the Research Committee, Carl J. Andres, Tien-Min Gabriel Chu, David Brown, Suteera Hovijitra. Curriculum vitae. Includes abstract. Includes bibliographical references (leaves 66-69).

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15

Herring, B. P. "The role of myosin light chain phosphorylation in regulating cardiac contractility." Thesis, University of Bristol, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375035.

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16

Yam, Cheuk-sing, and 任卓昇. "The impact of ultraviolet light on cataract: a systematic review." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45174969.

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17

Khan, Ashfaq. "Near field effect of light interaction with transparent microspheres." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/near-field-effect-of-light-interaction-with-transparent-microspheres(9a2b46b0-ec0b-4f95-982a-35341d5d9ee1).html.

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With the increasing demand for miniaturized devices there is a need for economic and reliable nano fabrication and nanoscopy techniques. This Thesis aims to improve the laser micro/nano patterning by contact particle lens array (CPLA) technique and also extend the CPLA technique to white light nanoscopy. CPLA has been used for patterning for nearly a decade. They have been used to fabricate bumps, bowls and user defined features on the surface of material. However, the CPLA method is limited to patterning of flat, smooth and hydrophilic substrates. Moreover, the particles can only be deposited

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18

Spooner, Nigel Antony. "The effect of light on the thermoluminescence of quartz /." Title page, contents and summary only, 1987. http://web4.library.adelaide.edu.au/theses/09SM/09sms764.pdf.

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19

Hollmark, Malin. "Absorbed dose and biological effect in light ion therapy." Doctoral thesis, Stockholm : Medical Radiation Physics, Stockholm university together with KI, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7756.

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20

Mirolo, Francesca. "The effect of light elements on metal/silicate partitioning." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:968b0001-4162-4439-9dc3-8b87a47137e0.

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The accretion of the Earth was marked by the high-pressure segregation of most of its core, accompanied by dissolution of about 10% of one or more “light” elements into the metallic phase. Various light elements have been proposed including S, Si, C and O, with each having an effect on the partitioning behaviour of the trace elements. Metallurgical data indicate that dissolution of even small amounts of light elements in liquid Fe can have profound effects on the activities of some trace components. For instance, significant partitioning of Si into the core of the growing Earth should have aff

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21

Stasinopoulos, Triantafyllos C. "Effect of light quality on growth of cultured tissues /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487687485811527.

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22

Aardahl, Christopher L. "Electrodynamic trapping, manipulation, and Raman characterization of single particles and fine particulate clouds /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/9863.

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23

Tsang, Yik Chong. "The effect of aberrations and light scatter on visual performance at photopic and mesopic light levels." Thesis, City University London, 2013. http://openaccess.city.ac.uk/2476/.

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The Contrast Acuity Assessment (CAA) test was developed to assess the minimum spatial vision requirements for commercial pilots. The goal of the CAA test was for it to be sensitive to retinal image degradation in subjects who had undergone excimer laser refractive surgery. Increased aberrations and scattered light or abnormal processing of visual information in the retina and/or the visual pathway are the main causes of retinal image degradation. The purpose of this study was to further investigate the effect of aberrations, scatter and other parameters on the CAA test under photopic and mesop

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24

Orr, Danielle Jean. "The Effect of Refractive Error and Light Exposure on Red and Blue Light-Driven Pupil Responses." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491935483251647.

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25

Squire, Anthony. "Incoherent laser light as a probe of ultrafast nonlinear optics." Thesis, University of Essex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296168.

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26

Li, Xiaochun. "Development and Light Response of Leaves of Metasequoia and Close Relatives." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/LiX2004.pdf.

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27

Choudhury, Feroza Kaneez. "Rapid Metabolic Response of Plants Exposed to Light Stress." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157543/.

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Environmental stress conditions can drastically affect plant growth and productivity. In contrast to soil moisture or salinity that can gradually change over a period of days or weeks, changes in light intensity or temperature can occur very rapidly, sometimes over the course of minutes or seconds. So, in our study we have taken an metabolomics approach to identify the rapid response of plants to light stress. In the first part we have focused on the ultrafast (0-90 sec) metabolic response of local tissues to light stress and in the second part we analyzed the metabolic response associated wit

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28

Zazzaro, Sarah. "Plasticity in Response to Changing Light Environment for Red Spruce and Balsam Fir." Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/pdf/ZazzaroS2009.pdf.

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29

Young, Stephen Michael Radley. "The effect of intense laser radiation on atomic collisions." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302895.

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30

Mouland, Josh. "The effect of spatially patterned light on the suprachiasmatic nucleus." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/the-effect-of-spatially-patterned-light-on-the-suprachiasmatic-nucleus(de2b1fff-2058-497e-948a-cc3811ffa39d).html.

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The daily variation in background light intensity (irradiance) can entrain the endogenous clock in the suprachiasmatic nucleus (SCN) to the external environment. The only source of this photic information in mammals is the eye, which is primarily a visual organ. It is therefore highly specialised to detect high frequency spatiotemporal modulations. This together with the adaptation which occurs within the retina could be present difficulties when encoding global irradiance. This raises the question of whether spatial patterns, which are present in our everyday viewing, might affect the ability

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31

Koppen, Camille. "Seeing the light: an exploration of the Colavita dominance effect." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491283.

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The Colavita effect provides a remarkable example of visual dominance, demonstrating that a visual stimulus can dominate a person's perception to such an extent that, on occasion, it appears to extinguish their perception of (or at least their ability to respond to) a concurrently-presented auditory stimulus. The aim of the experiments reported in this thesis was to investigate some of the key factors contributing to the Colavita visual dominance effect in order to gain a deeper understanding of its causes. The main findings reported in this thesis were that the Colavita visual dominance effec

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32

Maddocks, Samantha Annice. "The effect of light quality on avian behaviour and welfare." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364870.

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33

Zaumseil, Jana. "N-channel, ambipolar and light-emitting polymer field-effect transistors." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613003.

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34

Mtintsilana, Asanda. "The effect of light on a rat model of depression." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13205.

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Includes bibliographical references.<br>Background: Depression is a debilitating mood disorder, negatively affecting an individual’s health and well-being. Despite this, the aetiology of depression remains poorly understood. Consistently, depression treatments are far from satisfactory due to limited efficacy and adverse side effects often associated with them, suggesting a need to improve the current animal models of depression in order to understand the basic mechanisms of the disorder. In an attempt to elucidate the pathophysiology of depression, a rodent model of depression (maternal separ

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35

Rocha, Rui Jorge Miranda. "Effect of light on ex situ production of symbiotic corals." Doctoral thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/11777.

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Doutoramento em Biologia<br>The increasing interest in coral culture for biotechnological applications, to supply the marine aquarium trade, or for reef restoration programs, has prompted researchers to optimize coral culture protocols, with emphasis to ex situ production. When cultured ex situ, the growth performance of corals can be influenced by several physical, chemical and biological parameters. For corals harbouring zooxanthellae, light is one of such key factors, as it can influence the photosynthetic performance of these endosymbionts, as well as coral physiology, survival and growth.

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36

Generali, Gianluca <1977&gt. "Organic heterostructure approach for multifunctional light-emitting field-effect transistors." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3568/1/Generali_Gianluca_tesi.pdf.

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The possibility of combining different functionalities in a single device is of great relevance for further development of organic electronics in integrated components and circuitry. Organic light-emitting transistors (OLETs) have been demonstrated to be able to combine in a single device the electrical switching functionality of a field-effect transistor and the capability of light generation. A novel strategy in OLET realization is the tri-layer vertical hetero-junction. This configuration is similar to the bi-layer except for the presence of a new middle layer between the two transport la

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37

Generali, Gianluca <1977&gt. "Organic heterostructure approach for multifunctional light-emitting field-effect transistors." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3568/.

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The possibility of combining different functionalities in a single device is of great relevance for further development of organic electronics in integrated components and circuitry. Organic light-emitting transistors (OLETs) have been demonstrated to be able to combine in a single device the electrical switching functionality of a field-effect transistor and the capability of light generation. A novel strategy in OLET realization is the tri-layer vertical hetero-junction. This configuration is similar to the bi-layer except for the presence of a new middle layer between the two transport la

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38

Laban, Dane Edward. "Highly Nonlinear Optical Phenomena with Few-Cycle Light Pulses." Thesis, Griffith University, 2014. http://hdl.handle.net/10072/365337.

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This thesis details two investigations of highly nonlinear optical phenomena using few-cycle light pulses. Specifically, self-focusing in air with carrier-envelope phase locked pulses and high-order harmonic generation from successive sources. Producing few-cycle light pulses with a sufficient intensity to observe these phenomena has only become possible with the recent development of mode-locked lasers. By observing the behaviour of atoms in such an intense electromagnetic field, new conclusions can be drawn on the nature of nonlinear phenomena. Intense electromagnetic fields propagate nonli

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39

Wang, Huan. "Study of an Optical Enhancement Cavity for Thomson Scattering Light Sources." Thesis, université Paris-Saclay, 2020. https://tel.archives-ouvertes.fr/tel-03179872.

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Les cavités d'amélioration optique (OEC) de puissance moyenne élevée ont un large éventail d'applications, y compris la diffusion Thomson produisant des rayons X / gamma quai monochromatiques à flux moyen élevé, la génération d'harmoniques d'ordre élevé (HHG) améliorée par cavité, les interféromètres à ondes gravitationnelles, Sources de lumière de microbunching en régime permanent (SSMB) et expériences d'énergie de fusion, etc. Les travaux de cette thèse se concentrent sur les études théoriques et expérimentales des OEC de puissance moyenne élevée dédiées aux sources lumineuses diffusantes Th

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40

HAUSER, URSULA ESTHER. "PHOTOPERIODIC REGULATION OF THE FEMALE REPRODUCTIVE SYSTEM IN THE SYRIAN HAMSTER (OVARY, PINEAL, HORMONES, PITUITARY)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183862.

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Female golden Syrian hamsters are seasonally breeding animals, capable of maintaining continuous estrous cycles when the daylength is 12.5 hrs. or longer. In shorter photoperiod (SP) the ovaries of anovulatory animals are characterized by few small growing follicles, an absence of corpora lutea and extensive hypertrophied interstitium. Steroid-histochemical studies revealed that enzymes related to steroidogenesis show intense activity in the interstitial tissue of SP-exposed animals. The major objectives of these studies were to examine SP-induced hormonal and ovarian changes which occur prior

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41

Kadiri, Youssef. "Soil Penetrometer with Ramon Sampling, Fluorescence and Reflected Light Imaging: A Feasibility Study." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/kadiri/KadiriY0505.pdf.

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This thesis describes the feasibility and capabilities of a Fluorescence Imaging and Raman Probe (FIRP). This miniature instrument will combine reflected light and fluorescence imaging and Raman spectroscopy for potential exobiology or terrestrial environmental use. With the help of a penetrometer, the probe might be used to assess the presence of life on Mars and gain an understanding of Martian soil. Furthermore, this thesis will delineate how this penetrometer may be used to detect underground constituents and pollutants present on our own planet. The proposed FIRP will be incorporated into

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42

Lam, Lawrence K. C. "A silicon guided-wave optical modulator using free-carrier dispersion effect and radiation loss mechanism /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/5872.

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43

Garcia, Virginia Maria Tavano. "The effect of irradiance on production and growth of the bloom-forming dinoflagellate Gyrodinium aureolum." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330113.

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44

Mjwara, Jabulani Michael. "The interactive effects of light, temperature and CO₂/O₂ ratios in photosynthesis of Coix lachryma-jobi L." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1003785.

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A portable infra red gas analyzer was used to investigate the interactive effects of light, temperature, and CO,jO, ratios under controlled environmental conditions in an attempt to model gas exchange characteristics of Coix Iachryma-jobi L. Plotting light response curves as a function of temperature (20, 25 30 and 35°C) revealed no sign of light saturation even at a photosynthetic photon flux density (PPFD) close to 2000 !Lmol m-' sol. High net assimilation rates (A) of approximately 24 !Lmol CO, m"s'! were realized at 30-35°C. Assimilation (A) versus internal CO, partial pressure (C,) curves

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45

Ast, Stefan [Verfasser]. "New approaches in squeezed light generation : quantum states of light with GHz squeezing bandwidth and squeezed light generation via the cascaded Kerr effect / Stefan Ast." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2015. http://d-nb.info/1072062666/34.

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46

Cowen, John Alistair. "Brillouin light scattering from magnetic thin films and multilayers." Thesis, University of Salford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301413.

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47

Zhang, Jiang-wei, and 張見偉. "Fluorescent light-induced effect on the light fastness of color." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/99424714833365459028.

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碩士<br>中國文化大學<br>紡織產業碩士專班<br>103<br>Since the fluorescent color Photo-Stability is poor than the non-fluorescent, after which simulate sunlight exposure, dyeing base damage and shade change situations in this article will be quantified and provide Related color measurement data, the impact of the rating, as well as subsequent adjustments related to the use of a dye or UV absorber formulation improvements, provide reference. We use common market for PET and Nylon material, in three basic colors as fluorescent dye, using AATCC 16 color fastness standards for testing, and then use Datacolor spectr

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48

Gerber, Liesel. "Production and physiological responses of Italian ryegrass and white clover grown in mono cultures and mixed stands." Thesis, 1993. http://hdl.handle.net/10413/5820.

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The aim of this study was to test the hypothesis that ryegrass and clover, when grown under optimal conditions in mixed stands, interact in response to available light energy. with other resources non-limiting, pasture yield is determined by the efficiency with which solar radiation is intercepted by canopies and converted into dry matter. The clover-ryegrass interaction under varying light regimes, as experienced in the canopies of these pastures, was studied by investigating the growth and production of ryegrass and clover in relation to light harvesting abilities and photosynthetic utilizat

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49

Couling, Vincent William. "Second light-scattering and Kerr-effect virial coefficients of molecules with linear and lower symmetry." Thesis, 1995. http://hdl.handle.net/10413/11278.

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50

Ménard, Jean-Michel. "Spin Hall Effect of Light in Semiconductors." Thesis, 2011. http://hdl.handle.net/1807/29811.

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The lateral spatial separation between the circular polarization components of a linearly polarized light beam impinging at off-normal incidence on an air-semiconductor interface is investigated experimentally and theoretically. This fundamental optical phenomenon is referred to as the Spin Hall effect of light (SHEL). An optical pump-probe technique is demonstrated to resolve in situ the nanometer size SHEL displacement of a beam transmitted inside an absorptive material. Three different types of optical interactions in silicon and GaAs demonstrate the technique’s general applicability. First

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