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Dissertations / Theses on the topic 'The light-effect'

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Published: 3 June 2025

Last updated: 31 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

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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5

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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6

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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7

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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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

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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10

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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11

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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12

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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13

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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14

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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15

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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16

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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17

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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18

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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19

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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20

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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21

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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22

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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23

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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24

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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25

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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26

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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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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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

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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30

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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31

Amat, Genís Albert. "Effect of visible and near-infrared light on adenosine triphosphate (atp)." Doctoral thesis, Universitat Rovira i Virgili, 2005. http://hdl.handle.net/10803/8715.

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L' ATP es una molecula clau en el metabolisme cel.lular, actuant com a donador d'energia lliure i acoplant reaccions endergoniques i exergoniques. L'ATP es sintetitzat a la mitocondria en un proces anomenat fosforil.lacio oxidativa despres d'una serie de reaccions a la cadena de citocroms que es troba en la membrana interna de l'organel.la. La font d'energia necessaria per aquesta sintesi s'obte en les cel.lules animals dels nutrients de l'ingestio, i de la llum solar en les plantes. Existeix una via alternativa de sintesi d'ATP extramitocondrial, la glicolisi, que s'inicia amb la fosforilaci

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32

Korger, Jan Verfasser], and Gerd [Akademischer Betreuer] [Leuchs. "Geometric Spin Hall Effect of Light / Jan Korger. Gutachter: Gerd Leuchs." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2014. http://d-nb.info/107574475X/34.

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33

Lutz, Vivian A. "Effect of the light field on the optical properties of phytoplankton." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0019/NQ57366.pdf.

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34

Bolton, Peter Andrew. "The effect of light on cellular mechanisms associated with wound healing." Thesis, King's College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286667.

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The ability of light to affect and modify human activity, both physiologically and psychologically has been known for many centuries. The treatment of wounds with light with varying properties has seen a dramatic rise over the last twenty years, from initial reports of the "magic laser" in the 1970's, to recent well controlled clinical trials. However, one of the major problems facing researchers and clinicians in elucidating the mechanisms by which light can modulate wound repair, is that of the different parameters of the light sources used, be they true laser devices, monochromatic light so

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35

Herljevic, Mirela. "Effect of light and melatonin on circadian physiology in the elderly." Thesis, University of Surrey, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441870.

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36

Loffell, D. A. "Effect of light stress on the homoiochlorophyllous resurrection plant Craterostigma wilmsii." Bachelor's thesis, University of Cape Town, 1999. http://hdl.handle.net/11427/26005.

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The effect of light stress during drying, experienced by the homoiochlorophyllous resurrection plant Craterostigma wilmsii, was examined in this study. Inner-whorl leaves, which become shaded from light when dry, and outer-whorl leaves, the abaxial surfaces of which receive light in the dry state, as well as leaves which had been restrained from curling during drying, were separately examined. Differences in chlorophyll ( a + b) content, carotenoid (x + c) content, anthocyanin content, ascorbate peroxidase activity, and ultrastructure, were assessed. Shaded inner whorl leaves do not experience

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37

Grady, George. "The effect of resveratrol on ultraviolet light-induced skin cell death." Marietta College Honors Theses / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=marhonors1366909727.

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38

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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39

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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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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41

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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LIN, WEN-LONG, and 林文龍. "Light induced effect in hydrogenated amorphous silicon." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/63747420394835343867.

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43

Luklová, Markéta. "Light and its effect on plant proteome." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-426996.

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Light is one of the main environmental factors largely determining plant life. Light provides energy resources for photosynthesis and it is also the most important medium of perception as it represents the main source of information about plant surroundings. My diploma thesis entitled “Light and its effect on plant proteome” briefly summarizes present knowledge about the light perception in plants, its interpretation of light quality, quantity, and direction via photoreceptors. These components trigger a whole range of changes, both on molecular and developmental levels, but the complex molecu

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Chang, Tsao-Lun, and 張晁綸. "Investigation of Charge Generation Effect in Tandem White-light Organic Light Emitting Diodes." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/46059497330036689017.

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碩士<br>國立臺灣大學<br>光電工程學研究所<br>100<br>Tandem organic light emitting diodes (tandem OLEDs) are known for the outstanding color quality as well as the enduring operation lifetime and therefore exhibit a great potential to be the next generation display and solid state lighting. Tandem OLEDs have come a long way since their first introduction but there are still some issues that have yet been clarified or well explained. In this thesis, we demonstrate a tandem white light OLED with a p-n junction charge generation layer (CGL). As for the physical mechanisms, we will first clarify the definition of t

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Yu-Chien, Chou. "Light Emission from Si Nanowires by Raman Effect." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709322286.

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Chien, Shih-chi, and 簡世奇. "Application of Light Pipe based on Scattering Effect." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/p4nn7f.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>94<br>We suggest that combine light pipe with scattering effect can provide a way for innovative design. Traditionally, light pipe may be designed start at geometry view. In this article, we add scattering effect in light pipe design. We use DLP projector and smart building as two topics of design examples. We design the innovative design by diffusing mechanism and compare it with traditional ones.

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Tsai, Shang Lin, and 蔡尚霖. "Ambiet light at night effect on melatonin secretion." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/c65hj8.

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Chou, Yu-Chien, and 周佑謙. "Light Emission from Si Nanowires by Raman Effect." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/60931639225325733689.

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碩士<br>國立清華大學<br>材料科學工程學系<br>94<br>Silicon-based optical devices have been attracting people’s eyes recently because it can totally revolutionize the bottleneck in today’s IC fabrication industry due to diminishing dimension of component by using photons instead of electrons as data carrier and create a pioneering avenue toward photonic generation. Latterly, some investigating groups successfully demonstrated the first all-silicon laser based on Raman scattering and exhibited as a forerunner for us. In behalf of breaking through several drawbacks as well as ameliorating the performance compared

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Chen, How-Wen, and 陳皓文. "Effect of thermal stress on light-emitting diodes." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/14817097065233013261.

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碩士<br>崑山科技大學<br>電子工程研究所<br>101<br>Thermal stress on the packaged white light emitting diode (LED) is greatly influenced, In this study, Different sizes and different companies to the corresponding blue LED die package wire rack, And is divided into two types,One is through the phosphor to produce white LED light conversion element, Another element is non- phosphor powder (blue light). After packaging thermal stress test, Including reflow test 260 ℃ / 10 sec, thermal storage test 150 ℃, temperature cycle test -40 ℃ ~ 100 ℃, Record the test before and after optical and electrical properties of d

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Yeh, Guo-Quan, and 葉國全. "Effect of light irradiation on cells in scaffold." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/14983256870765269486.

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碩士<br>中原大學<br>醫學工程研究所<br>94<br>Abstract The objective of the present study was to investigate the nature polysaccharide “chitosan”. To use the chitosan had a good biocompatible and biodegradable. So we made a chitosan scaffold with a porous furthermore addition gelatin and glutaraldehyde. We used the wet-phase inversion with the Polyethylene glycol（PEG） made the porous property. Then we culture fibroblast and keratinocyte furthermore used LED irradiation of cells. To evaluate fibroblast and keratinocyte after the irradiation whether promote proliferation and adhesion property. Further we will

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