Дисертації з теми "Effetto "glow""
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Leung, Tsan-yan Amy. "A study on the electronic structure of a-C:H deposited using Saddle-field glow-discharge CVD." HKBU Institutional Repository, 1998. http://repository.hkbu.edu.hk/etd_ra/161.
Повний текст джерелаKayhan, Mehmet. "Effects Of Synthesis And Doping Methods On Thermoluminescence Glow Curves Of Manganese Doped Lithium Tetraborate." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610667/index.pdf.
Повний текст джерелаSchubert, C., V. Hoffmann, A. Kümmel, J. Sinn, M. Härtel, A. Reuther, M. Thomalla, T. Gemming, J. Eckert, and C. Leyens. "Compositional depth profiling of diamond-like carbon layers by glow discharge optical emission spectroscopy." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A36071.
Повний текст джерелаMushtaq, Sohail. "Effects of traces of molecular gases in analytical glow discharges : GD-OES and GD-ToF-MS Studies." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7124.
Повний текст джерелаWeinstein, Viktoria. "Factors affecting glow discharge plasma spectroscopy : effect of the molecular gases and sample geometry on the spectra." Thesis, London Metropolitan University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542803.
Повний текст джерелаShotbolt, Timothy. "Unwanted lighting effects at night in Australia." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/94241/1/Timothy_Shotbolt_Thesis.pdf.
Повний текст джерелаMollén, Albert. "Investigation of Ageing effects and Image stability in Hybrid Photon Pixel detectors at the LHCb experiment CERN." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-54734.
Повний текст джерелаThe world’s largest particle accelerator, Large Hadron Collider, located at CERN outside Geneva performed its first proton-proton collisions in November 2009. One of the four main experiments is LHCb, studying rare decays of hadrons containing the beauty quark. An essential part of the particle identification in LHCb is made by the two Ring Imaging Cherenkov detectors. These detectors use pixel Hybrid Photon Detectors for detection and imaging of Cherenkov rings. This paper reports on measurements carried out on the Hybrid Photon Detectors, including a discussion of the results. In particular, ageing effect and image stability are studied. A fraction of the photon detectors show a degradation in performance within these fields.
Världens största partikelaccelerator, LHC, belägen vid CERN utanför Genève utförde sina första proton-proton kollisioner i November 2009. Ett av de fyra huvudexperimenten är LHCb, som studerar sällsynta sönderfall av hadroner innehållande b kvarken. En viktig del av partikelidentifikationen i LHCb görs av de två RICH detektorerna. Dessa använder hybrida fotondetektorer för detektering och avbildning av Cherenkov ringar. Denna rapport handlar om mätningar utförda på dessa hybrida fotondetektorer, med en diskussion av resultaten. I synnerhet studeras åldringseffekter och bildstabilitet. En andel av fotondetektorerna visar en degradering i prestanda inom dessa områden.
Costa, Liliana Maria. "Analysis of the effects of the globby1-1 (glo1-1) mutation on maize seed development." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434854.
Повний текст джерелаGonzalez, Gomez Mayte Lorena. "Methylglyoxal Effects in Cell Therapy for Myocardial Infarction." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38431.
Повний текст джерелаGloe, Dominik [Verfasser], and Christian [Akademischer Betreuer] Möllmann. "Spatio-temporal distribution patterns of North Sea herring : Analysing environmental drivers, global warming effects and density-dependent mechanisms with “Generalised Additive Models” / Dominik Gloe ; Betreuer: Christian Möllmann." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2018. http://d-nb.info/1170322352/34.
Повний текст джерелаBazinette, Rémy. "Effet de la forme d'excitation électrique sur une décharge contrôlée par barrière diélectrique (dbd) à la pression atmosphérique et application au dépôt de couche mince." Thesis, Pau, 2016. http://www.theses.fr/2016PAUU3009/document.
Повний текст джерелаThe homogeneous discharge controlled by dielectric barrier at atmospheric pressure and their applications are a promising field of activity because of their advantages in contrast with the low pressure processes, especially for the on line treatment of large surface without pumping system. The physics of these discharges as the thin film properties obtained are well established with low frequency sinusoidal (<200 kHz) and radiofrequency excitation (13.56MHz). This is what is explored in this thesis aimed to find and explore new modes of homogeneous DBD and maximizing the power to optimize the deposition rate while maintaining quality thin layers. To achieve this goal, an original device has been developed varying the excitation frequency from 100 kHz to 18 MHz. The frequency increase on this range have many consequences. In an Ar-NH3 mixture, the discharge regime becomes successively a glow (GDBD) then Townsend (TDBD) around 250 kHz then RF-DBD from 3 MHz. The electrical and optical measurements that have been done show that the average power of the homogeneous discharges increases by a factor of 30 between GDBD regime and RF-DBD regime (up to 35 W/cm3) while the breakdown voltage is reduced by a factor 6. These observations coupled to the discharge emission spectra indicate that the electron density increases by several orders of magnitude while their energy decreases. These results are due to a change of the ionization mechanism with a dominant role of the secondary electron emission at the cathode in low frequency regime (GDBD and TDBD) while the volume ionization is dominate in RF-DBD. Both transitions between GDBD-TDBD regimes and TDBD-RF-DBD are studied. The first is related to the ion transit from the anode to the cathode which becomes longer than the half-period. In consequence, the cathode fall is not formed. The second transition is related to ions and electrons trapping which depends on the applied voltage, the value of the inter-electrode space and frequency.These discharges regime are compared to Nanopulsed repetitively discharge (NPR-DBD). The conditions leading to a homogeneous discharge are found. In homogeneous regime the maximum of the discharge power is 17 W/cm3 which is 17 times higher than for a low sinusoidal voltage for the same frequency. It is obtained for a repetition frequency of 30 kHz with a 10 ns voltage pulse. Hydrogenated silica and silicon nitride thin film obtained from SiH4 with GDBD, RF-DBD and NPR-DBD were studied. In all cases, the deposition rate is defined by the discharge power. The increase of the discharge power with the frequency increases the deposition rate from 30 nm/min to 90 nm/min. However with the use of silane at room temperature, nanoparticles are formed in RF regime when the discharge power is high. The amplitude modulation allows to prevent the formation of powders. AS far as the energy injected during Ton is less than 100 μJ. As the precursors are not consumed by the formation of powders, they are available for the growth of the layer thereby doubling the deposition rate compared to the continuous process for the same average power. Increasing the growth rate without powders with the average power requires an increase in the modulation frequency (> 1 kHz) i.e. a short Ton to limit the injected energy. Thus this work has highlighted a new discharge regime, the TDBD in Ar-NH3 and compared the GDBD, TDBD, RF-DBD and NRP-DBD discharge in the same configuration. For the first time, RF-DBD coating have been made and it has been shown that modulation of plasma, although it decreases the discharge power, can significantly increase the deposition rate
Valentin, François. "Optimisation du silicium amorphe hydrogéné préparé par décharge luminescente à basse fréquence pour l'utilisation dans divers dispositifs de type diode Schottky." Grenoble 1, 1987. http://www.theses.fr/1987GRE10173.
Повний текст джерелаChen, Yi-Sheng, and 陳乙升. "Effects of Low Pressure Glow Plasma on Germination of Brown Rice." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/66058295054941444390.
Повний текст джерела國立澎湖科技大學
食品科學研究所
101
The aim of this study, was to examine Taiwan’s production of Taikeng brown rice species. The germination of the brown rice material was prepared by 1kV, 2kV and 3kV plasma processing for the experimental group; there was no plasma treatment of the brown rice for the control group, and germination was verified at 0 h, 12 h, 18 h and 24 h, respectively. The different low plasma voltage processing conditions were explored, including brown rice bud, water absorption, germination rate, changes in dietary fiber content of α-amylase, texture analysis, GABA content, total antioxidant capacity changes and DPPH radical scavenging ability. The results showed that shoot, water absorption rate, germination rate, dietary fiber, and α-amylase were germinated by 3kV in the 24-h sample; its increase was the most obvious trend, and its values were: 1.405 mm, 30.25%, 61.67%; 0.131 (mg /g); 1.20 (unit /g) respectively. Texture analysis revealed that, its hardness was significantly lower than the control group’s after the plasma treatment of brown rice. With the 3KV plasma treatment germination for 24 h, the hardness decreased by 21.56 N to18.31 N and control group’s was reduced by 30.31 N to 20.56 N.In the GABA determination of the plasma treatment of brown rice samples, the GABA content was significantly higher than the control sample’s, to the 3kV plasma processing content of the sample, up to 28.10 (mg/100g), with the control group to 19.66 (mg/100 g). Total antioxidant capacity increased with increasing germination time, the strongest of which was the 3kV plasma treatment of brown rice samples after 24 h germination, in regard to total antioxidant capacity of 10.54 (mg / g), while the control group was 7.75 (mg /g). From the experimental results, the germination of brown rice under low-pressure plasma treatment can enhance the germination efficiency and increase the functional germinated brown rice, so that brown rice products will be developed with high nutritional value.
HAN-LING, LO, and 羅涵伶. "Effect of low pressure glow plasma on cooking quality of aged rice." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/68729050760360055789.
Повний текст джерела國立澎湖科技大學
食品科學研究所
102
After the rice storage period, the quality will decrease. It is compared with the aged rice and new rice for hard to cooked and the color, flavor is not good. The texture had hard after cooking, lower the viscosity, and the consumer is difficult to accept the flavor and texture. A novel processing technology is developed to modify aged rice in a more selective way with the help of low-pressure plasma.In this study, we pioneered Taikeng 9 (TK9) for the treatment.The germination of the aged material was prepare by 1kV,2 kV and 3kV plasma process. The plasma treatment results in an etching of aged rice surface, which allows water to be easily absorbed by the rice kernel during soaking. After plasma treatment, the cooking time of aged rice is reduced, and the cooked aged rice has a soft texture and is easier to chew. In addition, the increment of the iodine-stained area indicates that the kernel structure of aged rice is substantially affected by plasma. The continuous pasting viscocity found that,the peak viscocity,breakdown viscocity, maintained its strength.The final viscocity had a rising trend. Thus,plasma treatment can be used to improve the cooking properties and the quality of aged rice.
HUNG, CHUN-CHIEH, and 洪俊杰. "Modeling Study of Atmospheric Ar , Ar/O2 Glow Discharge andDielectric Layer Effect." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/78692458947124677890.
Повний текст джерела中原大學
化學工程研究所
96
In this study, two mathematical models for Ar/O2 APGD was developed: A zero-dimensional model for medium-frequency APGD, and one-dimensional model for pulsed-powered APGD. The influence of power and oxygen fraction on the plasma characteristics is investigated by the developed model. The effect of dielectric later plasma characteristic is also studied in the one-dimensional. The main reaction pathway in Ar and Ar/O2 atmospheric plasma was realized by the rate-of-production analysis. The zero-dimensional plasma model shows that the main active species in Ar atmospheric plasma include metastable dimer argon molecules (Ar2*), dimer argon ions (Ar2 +), and electron (e). It was found that O2 + & O2 - become the major ionic species, when 1% O2 is added to Ar plasma. And O2 addition also reduces electron and Ar metastable density, and generates copious amounts of ozone. In one-dimensional plasma model, the addition of oxygen significantly reduces metastable species density. The electron temperature first decreases then increases when oxygen fraction is increased. The dielectric layer plasma model show that the system with dielectric layer can generate more electrons and have a high average electron temperature than that without dielectric layer under the same input power. The discharge voltage significantly reduces when dielectric layer is added into atmospheric plasma system.
Liao, Chia-Ding, and 廖家鼎. "The effects of low-pressure glow plasma and corona discharge on granular starches." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/82217839514184374345.
Повний текст джерела國立臺灣大學
食品科技研究所
89
The effects of low-pressure glow plasma (10-2 Torr, 2KV) and corona discharge on different starch granules [cassava, corn, waxy corn starch, 70% high amylose amylomaize, potato, indica rice (KSS7), japonica rice (TNu67), sweet potato and wheat starches] were investigated. Using SEM, HPSEC, spectrophotometry, X-ray diffractometry and DSC analyzed the changes of physicochemical properties of starch by low-pressure glow plasma or corona discharge treatment. Pores were observed on the surface of starch granules from the SEM of the sample after 30 min of low-pressure glow plasma treatment, especially for potato, cassava and waxy corn starches. The pH values of plasma treated starches were significantly decreased, which was attributed to the oxidation of starch molecules. The profile of HPSEC for the treated starches were shifted backward, and the peak corresponding with amylopectin was reducing, implying the depolymerization of starch molecules occurred during the plasma treatment. This phenomenon is also more pronounced with potato, cassava and waxy corn starches. During the treatments with different gases, oxygen and ammonia would cause the higher degree of oxidation. The absorbance of starch-iodine complex of the plasma treated sample was also decreased. Oxidation and depolymerization of starch were likewise detected in corona discharge treated 1:1 (w/w) concentrated starch batter, but the degree of effect was much lower than that of corresponding plasma treated one. The addition of NaCl or KI into potato starch caused the decrease of oxidation or depolymerization. This might be due to the result of complex formation between salt and starch or/and the electrostatic interaction between salt and starch. Further study in this area may facilitate the development of the novel process for the manufacturing starch derivatives.
Elbadawi, Lena. "Effect of radiofrequency glow discharge on proliferation and osteogenic behavior of normal human osteoblasts." Thesis, 2016. https://hdl.handle.net/2144/18302.
Повний текст джерелаKe, Shih-Pin, and 柯世品. "The Effects of Filament Preheating and Glow Current on The Life-Cycle of Fluorescent Lamps." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/nn4sut.
Повний текст джерела國立中山大學
電機工程學系研究所
96
This thesis investigates the impact of preheating and glow current on the life-time of rapid-start fluorescent lamps during the starting transient period. A set of electronic ballast circuit is designed to adjust the starting transient preheating current, open-circuit voltage, and preheating time, so that the preheating conditions and the intended amount of glow current can be scheduled. In the experiments, the tested lamps are frequently switched on and off for 35 seconds and 25 seconds, respectively, to accelerate the life-cycle test. Experimental results show that the effect of the glow current on the life-cycle is trivial. Insignificant difference is found between the test lamps with different glow currents when the preheating conditions are the same. On the other hand, the preheating degree is found to be the main factor that affects the lamp life-time. The tested lamps which are adequately preheated last for more than 100000 test cycles. On the other hand, the tested lamps with insufficient preheating are premature with black ends or even damaged only after the several thousands cycles.
Lee, Wen Hau, and 李文豪. "The effects of RF and DC glow discharge cleaning method on aluminum vacuum surfaces by SIMS analysis." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/21646429271383881807.
Повний текст джерелаShrestha, Sheela. "Effect of glow-discharge treatment on the shear bond strength of glass-fiber-reinforced root canal post bonded to composite." 2006. http://proquest.umi.com/pqdweb?did=1136096391&sid=21&Fmt=2&clientId=39334&RQT=309&VName=PQD.
Повний текст джерелаTitle from PDF title page (viewed on Oct. 06, 2006) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Baier, Robert E. Includes bibliographical references.
Chen, Weiwei. "A preliminary study of the effects of exposure to a One Atmosphere Uniform Glow Discharge Plasma (OAUGDP®) on the surface energy and strength of meltblown and nanofiber fabrics." 2003. http://etd.utk.edu/2003/ChenWeiwei.pdf.
Повний текст джерелаTitle from title page screen (viewed Mar. 18, 2004). Thesis advisor: J. Reece Roth. Document formatted into pages (vi, 47 p. : ill. (some col.)). Vita. Includes bibliographical references (p. 42-46).
Winkler, Vanessa Kerstin. "Green advertising : the effect of emotional and functional claims on ad effectiveness and behavioural intentions." Master's thesis, 2021. http://hdl.handle.net/10400.14/35690.
Повний текст джерелаA discrepância entre as atitudes pró-ambientais dos consumidores e o comportamento de compra de produtos sustentáveis ilustra a necessidade de melhorar a comunicação comercial da proposta destes. Contudo, os conhecimentos académicos sobre a eficácia publicitária dos diferentes apelos publicitários sustentáveis e o papel do envolvimento sustentável, particularmente no que diz respeito aos estímulos publicitários mistos (funcionais e emocionais), continuam a ser escassos. Por conseguinte, esta investigação visa compreender qual o apelo, funcional, emocional ou a sua combinação, que aumenta mais fortemente a eficácia publicitária e a intenção comportamental, bem como o papel do envolvimento sustentável dos consumidores na resposta aos mesmos. Investiga ainda a forma como as variáveis de eficácia publicitária preveem a intenção comportamental.Uma experiência factorial 2x3 baseada numa amostra de conveniência, com 327 participantes, examinou a eficácia da força do argumento, individualmente e com apelos emocionais sociais e morais, e o papel moderador do envolvimento sustentável. Os resultados revelaram que a força do argumento aumenta a eficácia da publicidade principalmente para os consumidores envolvidos a médio prazo, enquanto que um apelo emocional social aumenta a intenção comportamental independentemente do envolvimento sustentável dos consumidores, fornecendo evidência de que este último é o apelo publicitário superior. Contudo, não houve um efeito combinado significativo de um apelo publicitário funcional e emocional. Verificou-se que a intenção comportamental dos consumidores foi muito mais impulsionada pelo “warm glow” antecipado da compra do que pelos benefícios utilitários sustentáveis. As implicações para académicos e gestores são discutidas.