Academic literature on the topic 'Perilene'
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Journal articles on the topic "Perilene"
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Carneiro, Maria Eulália Rocha, Rogério Migueis Picado, Cinthia Masumoto, Leonardo Mitidiero Mansor, Märcia Caruso Bícego, Eduineti Ceci Pereira Moreira de Sousa, and Bauer Raehid. "HYDROCARBONS DETECTION IN A COASTAL LAGOON IMPACTED BY AN OIL SPILL IN SÃO SEBASTIÃO CHANNEL, SÃO PAULO STATE, BRAZIL1." International Oil Spill Conference Proceedings 2005, no. 1 (May 1, 2005): 777–85. http://dx.doi.org/10.7901/2169-3358-2005-1-777.
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ABSTRACT An operational problem involving the loading arms occurred at São Sebastião Oil Terminal of PETROBRAS, located in the Brazilian Southeastern coast, during the oil transference from the tanker to the Terminal, resulting in the spill of approximately 26.0 m3 of crude Marlin-33 oil on 3 June 2003. The spilled bulk oil was transported by wind-driven currents to the north of São Sebastião Channel where skimmer vessels and booms collected the product. In spite of all contingency actions, some of the oil reached a coastal lagoon. The Environmental Monitoring Program, involving sampling a week and four months after the event, included chemical analysis for benzene, toluene, ethybenzene and xylenes (BTEX), petroleum hydrocarbons (TPH), aliphatic compounds (n-alkanes), polycyclic aromatic compounds (PAH), unresolved complex mixtures (UCM) and total organic carbon (TOC); toxicological tests for water using the Microtox system and Lytechinus variegatus embryo test, and for sediment using the Nitokra copepod test; and hydrocarbon detection in mussel tissue, related to local aquaculture. The coastal water PAH concentrations after the spill ranged from 0.14 to 1.92 μg/L in chrysene equivalents. For the lagoon water analysis, the concentrations of PAHs ranged from 1.54 to 9.66 μg/L. The total PAH concentrations in lagoon sediment ranged from 5.6 to 359.2 ng/g with perilene prevalence. The total PAH concentrations in mussel tissue samples ranged below the detection limit to 110.0 ng/g; the aliphatic hydrocarbon concentrations varied between 11.02 to 21.36 μg/g and total n-alkanes between 4.80 to 6.21 μg/g, showing no influence of petroleum hydrocarbons. The toxicity results were not conclusive: by means of acute tests, no toxicity was observed in the lagoon water. However, the chronic tests indicated toxicity in some samples including in the controls located in non-affected places.
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Zhang, Xue Yuan. "Optimal Control Strategy at the Main Reduction Process for Lunar Spacecraft Soft Landing." Applied Mechanics and Materials 775 (July 2015): 334–38. http://dx.doi.org/10.4028/www.scientific.net/amm.775.334.
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According to the law of energy conservation and the second law of Kepler, this paper obtains the spacecraft velocity in perilune and apolune. Based on trajectory inversion thought, this paper obtains position and velocity direction in the perilune and apolune. For the five sub stages of soft landing, this paper discusses the optimal control strategy: establishing optimization model of genetic algorithm for the main deceleration section, the terminal constraint condition is reflected on the fitness function through the penalty function, combined with linear iterative thought, the winner engine thrust and direction angle are obtained. Aiming at the rapid adjustment period, the spacecraft angle change is done equivalent decomposition and discrete linear, so the thrust can be obtained through the angle change provided by adjusting attitude engine and combined with rigid body motion law.
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Zhao, Bo, Ye Wang, Jun Fu, Rongqiang Zhao, Yashuo Li, Xin Dong, Chengxu Lv, and Hanlu Jiang. "Online Measuring and Size Sorting for Perillae Based on Machine Vision." Journal of Sensors 2020 (January 13, 2020): 1–8. http://dx.doi.org/10.1155/2020/3125708.
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Perillae has attracted an increasing interest of study due to its wide usage for medicine and food. Estimating quality and maturity of a perillae requires the information with respect to its size. At present, measuring and sorting the size of perillae mainly depend on manual work, which is limited by low efficiency and unsatisfied accuracy. To address this issue, in this study, we develop an approach based on the machine vision (MV) technique for online measuring and size sorting. The geometrical model and the corresponding mathematical model are built for perillae and imaging, respectively. Based on the built models, the measuring and size sorting method is proposed, including image binarization, key point determination, information matching, and parameter estimation. Experimental results demonstrate that the average time consumption for a captured image, the average measuring error, the variance of measuring error, and the overall sorting accuracy are 204.175 ms, 1.48 mm, 0.07 mm, and 93%, respectively, implying the feasibility and satisfied accuracy of the proposed approach.
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Cho, Dong-Hyun, Bo-Young Jeong, Dong-Hun Lee, and Hyo-Choong Bang. "Optimal Perilune Altitude of Lunar Landing Trajectory." International Journal of Aeronautical and Space Sciences 10, no. 1 (May 30, 2009): 67–74. http://dx.doi.org/10.5139/ijass.2009.10.1.067.
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Guo, L., J. L. Li, S. B. Qiao, and F. Tian. "Monitoring the lunar capture of Chang'E-1 satellite by real-time reduction of the instantaneous state vectors." Proceedings of the International Astronomical Union 3, S248 (October 2007): 194–95. http://dx.doi.org/10.1017/s1743921308019029.
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AbstractBased on our independently developed data processing software, the real-time reduction of the instantaneous state vectors of satellite during the maneuver stage near to perilune is analyzed via experimental observations. Results show that it is a quick and practical method to monitor the orbit evolution and the lunar capture of Chang'E-1 satellite.
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Krings, Ulrich, Darius Hapetta, and Ralf G. Berger. "Bioconversion of β-myrcene to perillene byPleurotus ostreatus." Biocatalysis and Biotransformation 26, no. 4 (January 2008): 288–95. http://dx.doi.org/10.1080/10242420801897494.
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Nishizawa, A., G. Honda, and M. Tabata. "Genetic control of perillene accumulation in Perilla frutescens." Phytochemistry 29, no. 9 (January 1990): 2873–75. http://dx.doi.org/10.1016/0031-9422(90)87094-b.
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Xu, Lihua, Tianyu Ma, Xinming Wang, Wei Liu, Jia Li, and Xiao Wang. "Preparative separation of seven polyphenols from Perillae Folium via pH-zone-refining counter-current chromatography combined with high-speed counter-current chromatography." Analytical Methods 13, no. 10 (2021): 1232–37. http://dx.doi.org/10.1039/d0ay02314k.
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A separation method using pH-ZRCCC combined with HSCCC was proposed to separate the crude sample of Perillae Folium with different constituents and polarity, and three phenolic acids and four flavonoid glycosides were isolated successfully.
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Medeiros Barbosa, Elizomar, Italo Santos Costa, Pedro Henrique Siqueira de Oliveira, Erivana Batista dos Santos, Andreza Miranda Barata Silva, Paulo José Sousa Maia, and Elson Almeida Souza. "Perylene Derivative Complexes as Cocatalyst for Electrocatalytic Oxidation of Ethanol." Revista Virtual de Química 12, no. 6 (2020): 1653–61. http://dx.doi.org/10.21577/1984-6835.20200122.
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Czeskis, B. A., P. Baeckstr�m, A. M. Moiseenkov, and T. Norin. "New synthesis of perillene and some other furanoterpenes by cyclopropylcarbinyl rearrangement." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 38, no. 1 (January 1989): 131–34. http://dx.doi.org/10.1007/bf00953717.
Full textDissertations / Theses on the topic "Perilene"
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Torricella, Giulia. "Bioelettronica organica: Nuovi approcci tecnologici per la stimolazione e la rilevazione della comunicazione di cellule neuronali." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8520/.
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Il campo della Bioelettronica si è sviluppato a partire dal 18 secolo con l’ esperimento di Luigi Galvani che, applicando uno stimolo elettrico ai muscoli di una rana dissezionata, ne osservò il movimento. Da questo esperimento si è aperta la strada che ha portato ad oggi ad un grande sviluppo tecnologico nella realizzazione di dispositivi elettronici che permettono di offrire un miglioramento generale delle condizioni di vita.
Come spesso accade con le tecnologie emergenti, i materiali sono la maggiore limitazione nello sviluppo di nuove applicazioni. Questo è certamente il caso della Bioelettronica.
I materiali elettronici organici, nella forma di polimeri conduttivi, hanno mostrato di poter dotare gli strumenti elettronici di grandi vantaggi rispetto a quelli tradizionali a base di silicio, in virtù delle loro proprietà meccaniche ed elettroniche, della loro biocompatibilità e dei bassi costi di produzione.
E’ da questi studi che nasce più propriamente il campo della Bioelettronica Organica, che si basa sulla applicazione di semiconduttori a base di carbonio in forma di piccole molecole coniugate e di polimeri, e del loro utilizzo nei dispositivi elettronici.
Con il termine di ‘Bioelettronica organica’, quindi, si descrive l’accoppiamento tra dispositivi elettronici organici e il mondo biologico, accoppiamento che si sviluppa in due direzioni: da un lato una reazione o un processo biologico può trasferire un segnale ad un dispositivo elettronico organico, dall’altro un dispositivo elettronico organico può avviare un processo biologico.
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Hapetta, Darius. "Biogenese von Perillen durch Pleurotus ostreatus DSMZ 1020." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=983880166.
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Volpati, Diogo [UNESP]. "Fabricação e caracterização de filmes finos de perileno: arquitetura molecular e aplicações sensoriais." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/94501.
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volpati_d_me_bauru.pdf: 5747357 bytes, checksum: 51588cae60e48257109b7cd67deb6faa (MD5)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Filmes finos do bis benzimidazo perileno (AzoPTCD) foram fabricados usando as técnicas de Langmuir, Langmuir-Blodgett (LB) e evaporação a vácuo (PVD). A estabilidade térmica durante a fabricação dos filmes PVD ('DA ORDEM DE' '400 GRAUS' a '10 POT. -6' Torr) e a integridade da estrutura molecular pela dissolução do AzoPTCD em ácidos fortes para a fabricação dos filmes de Langmuir e LB foram monitoradas pelo espalhamento Raman. Complementarmente a análise termogravimétrica revelou que a degradação térmica do AzoPTCD ocorre a '675 GRAUS'. Os filmes de Langmuir revelaram um alto empacotamento molecular do AzoPTCD sobre a subfase aquosa, onde as moléculas estão apoiadas sobre seu eixo maior ou menor. A adição de íons metálicos na subface aquosa revelou uma sensibilidade do AzoPTCD a presença destes íons, deslocando as isotermas para maiores valores de área molecular média. O crescimento dos filmes LB e PVD sobre substratos sólidos foi monitorado através da espectroscopia de absorção UV-Vis, e a morfologia dos filmes PVD foi estudada via microscopia de força atômica (AFM) em função da espessura em massa. A organização molecular dos filmes PVD foi determinada usando as regras de seleção de superfície aplicadas na espectroscopia de absorção no infravermelho (modos de transmissão e reflexão). Apesar da organização molecular, a difração de raios-x revelou que os filmes PVD são amorfos. Cálculos teóricos (Density functional theory -B3LYP) foram usados para atribuição dos modos vibracionais nos espectros de absorção no infravermelho e espalhamento Raman ressoante Nanoestruturas metálicas, capazes de ativar os fenômenos de amplificação em superfície foram usadas para estudos de espalhamento Raman ressonante amplificado em superfície (SERRS) e fluorescência amplificada em superfície (SEF) nos filmes LB e PVD. Através...
Thin solid films of bis benzimidazo perylene (AzoPTCD) were fabricated using Langmuir, Langmuir-Blodgett (LB) and physical vapor deposition (PVD) techniques. Thermal stability during the fabrication of PVD films ('DA ORDEM DE' '400 GRAUS' a '10 POT. -6' Torr) and chemical structure integrity by dissolution of the AzoPTCD in a strong acid were monitored by Raman scattering. Complementary thermogravimetric results showed that thermal degradation of AzoPTCD occurs at '675 GRAUS'. Langmuir films showed a high molecular packing with the molecules tilted onto the aqueous subphase. Besides, the AzoPTCD л-A isotherms were shifted to larger areas due to the addition of metallic ions in the subphase. The growth of the LB and PVD films were established through UV-Vis absorption spectroscopy, and the surface morphology in PVD films was probed by atomic force microscopy (AFM) as function of the mass thickness. The AzoPTCD molecular organization in the PVD films was determined using the selection rules of infrared absorption spectroscopy (transmission and reflection-absorption modes). Despite the molecular organization, X-ray diffraction revealed that the PVD films are amorphous. Theoretical calculations (Density Functional Theory, B3LYP) were used to assign the vibrational modes in the infrared and Raman spectra. Metallic nanostructures, able to sustain localized surface plasmons (LSP) were used to achieve surface-enhanced resonance Raman scattering (SERRS) and surface-enhanced fluirescence (SEF) in the LB and PVD films. The conductivity and rectifier character of the PVD films of AzoPTCD were determined by current as function of tension curves (I(V)) in dc measurements. The impedance spectroscopy in ac measurements was used to study the performance of PVD films of the AzoPTCD as transductor elements in sensing units applied to discriminate... (Complete abstract click electronic access below)
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Volpati, Diogo. "Fabricação e caracterização de filmes finos de perileno : arquitetura molecular e aplicações sensoriais /." Presidente Prudente, 2008. http://hdl.handle.net/11449/94501.
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Orientador: Carlos José Leopoldo ConstantinoBanca: Marystela Ferreira
Banca: Neri Alves
O Programa de Pós-Graduação em Ciência e Tecnologia de Materiais, PosMat, tem caráter institucional e integra as atividades de pesquisa em materiais de diversos campi da Unesp
Resumo: Filmes finos do bis benzimidazo perileno (AzoPTCD) foram fabricados usando as técnicas de Langmuir, Langmuir-Blodgett (LB) e evaporação a vácuo (PVD). A estabilidade térmica durante a fabricação dos filmes PVD ('DA ORDEM DE' '400 GRAUS' a '10 POT. -6' Torr) e a integridade da estrutura molecular pela dissolução do AzoPTCD em ácidos fortes para a fabricação dos filmes de Langmuir e LB foram monitoradas pelo espalhamento Raman. Complementarmente a análise termogravimétrica revelou que a degradação térmica do AzoPTCD ocorre a '675 GRAUS'. Os filmes de Langmuir revelaram um alto empacotamento molecular do AzoPTCD sobre a subfase aquosa, onde as moléculas estão apoiadas sobre seu eixo maior ou menor. A adição de íons metálicos na subface aquosa revelou uma sensibilidade do AzoPTCD a presença destes íons, deslocando as isotermas para maiores valores de área molecular média. O crescimento dos filmes LB e PVD sobre substratos sólidos foi monitorado através da espectroscopia de absorção UV-Vis, e a morfologia dos filmes PVD foi estudada via microscopia de força atômica (AFM) em função da espessura em massa. A organização molecular dos filmes PVD foi determinada usando as regras de seleção de superfície aplicadas na espectroscopia de absorção no infravermelho (modos de transmissão e reflexão). Apesar da organização molecular, a difração de raios-x revelou que os filmes PVD são amorfos. Cálculos teóricos (Density functional theory -B3LYP) foram usados para atribuição dos modos vibracionais nos espectros de absorção no infravermelho e espalhamento Raman ressoante Nanoestruturas metálicas, capazes de ativar os fenômenos de amplificação em superfície foram usadas para estudos de espalhamento Raman ressonante amplificado em superfície (SERRS) e fluorescência amplificada em superfície (SEF) nos filmes LB e PVD. Através... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Thin solid films of bis benzimidazo perylene (AzoPTCD) were fabricated using Langmuir, Langmuir-Blodgett (LB) and physical vapor deposition (PVD) techniques. Thermal stability during the fabrication of PVD films ('DA ORDEM DE' '400 GRAUS' a '10 POT. -6' Torr) and chemical structure integrity by dissolution of the AzoPTCD in a strong acid were monitored by Raman scattering. Complementary thermogravimetric results showed that thermal degradation of AzoPTCD occurs at '675 GRAUS'. Langmuir films showed a high molecular packing with the molecules tilted onto the aqueous subphase. Besides, the AzoPTCD л-A isotherms were shifted to larger areas due to the addition of metallic ions in the subphase. The growth of the LB and PVD films were established through UV-Vis absorption spectroscopy, and the surface morphology in PVD films was probed by atomic force microscopy (AFM) as function of the mass thickness. The AzoPTCD molecular organization in the PVD films was determined using the selection rules of infrared absorption spectroscopy (transmission and reflection-absorption modes). Despite the molecular organization, X-ray diffraction revealed that the PVD films are amorphous. Theoretical calculations (Density Functional Theory, B3LYP) were used to assign the vibrational modes in the infrared and Raman spectra. Metallic nanostructures, able to sustain localized surface plasmons (LSP) were used to achieve surface-enhanced resonance Raman scattering (SERRS) and surface-enhanced fluirescence (SEF) in the LB and PVD films. The conductivity and rectifier character of the PVD films of AzoPTCD were determined by current as function of tension curves (I(V)) in dc measurements. The impedance spectroscopy in ac measurements was used to study the performance of PVD films of the AzoPTCD as transductor elements in sensing units applied to discriminate... (Complete abstract click electronic access below)
Mestre
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Vilela, Guilherme Drechsler. "Síntese de polimetacrilatos, triarilaminase perilenos derivados de isoxazóis e isoxazolinas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/109702.
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Este trabalho descreve a síntese e caracterização de diferentes séries inéditas de isoxazolinas e isoxazóis dirigida para a área de materiais orgânicos eletrônicos e a sua derivatização em polimetacrilatos líquido-cristalinos, em aminas terciárias e em derivados do perileno. As isoxazolinas foram sintetizadas por meio de reação de cicloadição [3+2] 1,3-dipolar de óxidos de nitrila com alcenos escolhidos, com posterior oxidação do anel para isoxazol via MnO2, gerando os isoxazóis 5a-c. Isoxazóis 3-aril-5-hidroximetil substituídos 37a-c foram obtidos através da reação de cicloadição [3+2] entre cloretos de oximoíla com álcool propargílico, usando CuI como catalisador. As propriedades térmicas dos compostos sintetizados foram analisadas por microscopia ótica de luz polarizada (MOLP) e caloria diferencial exploratória (DSC), as propriedades espectroscópicas e de fluorescência foram analisadas por espectros de absorção no UV-Vis e fluorescência. A presente tese é dividida em quatro capítulos. O primeiro capítulo trata da síntese e caracterização de cristais líquidos polimetacrilatos 10a-d e 11 onde a unidade mesogênica é composta do 3,5-diaril-isoxazol 7a, o qual possui como espaçador uma cadeia alquílica de 11 átomos de carbono entre o grupo rígido e a cadeia polimérica derivada do acido metacrílico. Nesse capítulo foram avaliados a influência da massa molar do polímero (Mn) sobre seu comportamento térmico e também se compara o comportamento térmico de cristais líquidos poliméricos de cadeia lateral (CLPCL) com um cristais líquidos poliméricos de cadeia principal (CLPCP). Os resultados obtidos indicam uma maior estabilidade na mesofase dos compostos polimerizados, mantendo-se a estrutura lamelar. No segundo capítulo é abordada a síntese de diferentes 3,5-diaril-isoxazóis (5b, 7b e 7c), os quais foram acoplados a aminas (pipieridina, morfolina, difenilamina e fenotiazina) através da reação de Buchwald-Hartwig e suas propriedades óticas de absorção e fluorescência foram avaliadas; diferentes aminas e seus efeitos eletrônicos são testados, assim como dois grupos alquílicos diferentes a fim de se estudas as propriedades térmicas dos mesmos compostos. Os resultados obtidos para o comportamento fotofísico dos 3,5-diaril-isoxazóis contendo aminas acopladas 13a-k corroboram com as expectativas baseadas na literatura para comportamento de grupos doadores e aceptores de elétrons. No terceiro capítulo é abordado o trabalho desenvolvido na University of Hull – UK durante o estágio pelo programa Ciência sem Fronteiras, onde foi tentada a síntese de compostos de perileno funcionalizados com isoxazóis com intuito de produzir corantes com propriedades eletrônicas interessantes para o uso em materiais orgânicos fotovoltaicos. O quarto e último capítulo aborda a síntese de 3-aril-5-hidroximetil-isoxazóis 37a-c através da reação de cicloadição de cloretos de oximoíla com álcool propargílico para a síntese de uma série de cristais líquidos de baixa massa molecular; nesse capítulo também é feita uma observação de influência dos grupos substituintes do substrato na regiosseletividade da reação.This work presents the synthesis and characterization of novel isoxazolines and isoxazoles derivatives aiming the development of electronic materials field, their derivatization in liquid crystalline polymethacrylates, in tertiary amines and perylene derivatives. Isoxazolines were synthesized by [3+2]1,3-dipolar cycloaddition reaction between nitrile oxides and alkenes. After this the isoxazolines were oxidized using MnO2 to give isoxazoles 5a-c. The 3-aryl-5-hydroxymethyl-isoxazoles 37a-c were obtained by [3+2]1,3-dipolar cycloaddition between oximoyl chlorides and propagyl alcohol, using CuI as catalyst. Thermal properties of synthesized compounds were analyzed by polarized optic microscopy (POM) and differential scanning calorimetry (DSC), spectroscopic properties were analyzed by UV-Vis absorption spectroscopy and fluorescence spectroscopy. Present thesis is divided in four chapters. First chapter explains about synthesis and characterization of liquid crystalline polymethacrylates 10a-d and 11, where the mesogenic unity is composed for 3,5-diaryl-isoxazle 7a, which bears an alkyl chain formed by eleven carbons as spacer group between the rigid core and the polymethacrylate chain. In this chapter were evaluated how molar weight (Mn) affects the thermal behaviour and also the thermal behaviour of side chain polymeric liquid crystals (SCPLC) are compared to a main chain polymeric liquid crystal (MCPLC). Results show a higher stability in the mesophase of polymerised compounds, with maintenance of lamellar mesophases showed by the precursors. In the second chapter synthesis of different 3,5-diaryl-isoxazoles (5b, 7b and 7c) is discussed, these isoxazoles were coupled to amines (piperidine, morpholine, diphenylamine and phenothiazine) by Büchwald-Hartwig reaction to afford desired compounds 13a-k. Four amines were tested to study their electronic influence, also two alkyl chains were tested to study the effect in thermal behaviour and processability. The observed photophysical behaviour of compounds 13a-k corroborates with our expectations, based in literature for donating and acceptor groups. In the third chapter the work done in the University of Hull – UK, during the Science without Borders internship, in this work synthesis of perylene derivatives bearing isoxazole group was attempted aiming production of dyes with interesting electronic properties for use in organic photovoltaic materials. The fourth and last chapter discusses synthesis of 3-aryl-5-hydroximethyl-isoxazoles 37a-c via cycloaddition reaction between oximoyl chlorides and propargyl alcohol for synthesise a novel series of low molecular weight liquid crystals, in this chapter is also observed the influence of steric hindrance in regioselectivity of cycloaddition.
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Fernandes, José Diego [UNESP]. "Estrutura supramolecular de um derivado de perileno em filmes finos fabricados por evaporação térmica a vácuo." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/135964.
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000857258.pdf: 1746342 bytes, checksum: 6e2a4bab2d3551d0a1cb92b18a4c79cd (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
O arranjo supramolecular de filmes finos orgânicos é um fator que influencia as propriedades ópticas e elétricas destes filmes e, consequentemente, nas aplicações tecnológicas que envolvem eletrônica orgânica. Nesta dissertação de mestrado, filmes finos de um derivado de perileno - acrônico BuPTCD foram produzidos via deposição por evaporação física (PVD) através de evaporação térmica a vácuo. O objetivo principal foi investigar o arranjo supramolecular do BuPTCD nesses filmes PVD, o que implica em controlar a sua espessura em escala nanométrica, determinar sua organização molecular, morfologia em escalas micro e nanométrica, e cristalinidade, bem como a estabilidade ou não, deste arranjo supramolecular em função da temperatura. Propriedades ópticas (absorção e emissão) e elétricas (condutividade e fotocondutividade) destes filmes PVD de BuPTCD também foram determinadas. A absorção no ultravioleta-visível revelou um crescimento controlado (uniforme) dos filmes PVD. As imagens de microscopia de força atômica e óptica mostraram uma superfície homogênea do filme em escalas nono e micrométrica, respectivamente. A difração de raios-X indicou que tanto o pó quanto o filme PVD possuem estruturas cristalinas distintas, estando as moléculas de BuPTD orientadas preferencialmente nos filmes PVD poicionadas verticalmente, apoiadas na superfície do substratos a partir do grupo latera (FTIR). Tal estruturação favorece a emissão de luz (fotoluminescência) a partir da formação de excímeros nos filmes PVD. O tratamento térmico (200ºC por 10 minutos) não afetou a organização molecular dos filmes, revelando a estabilidade térmica do arranjo supramolecular de BuPTCD nos filmes PVD nestas condições. As medidas elétricas (DC) mostraram um aumento da corrente em função da tensão que segue uma relação linear, característico de comportamento ôhmico. Além disso, os filmes apresentaram um aumento de 2...
The supermolecular arrangement of organic thin films is a factor that infuences both optical and electrical properties of these films and, consequently, the technology, the technological applications involving organic electronics. In this dissertation, thin films of a perylene drivative (bis butylimido perylene, acronym BuPTCD wre produced by physical vapor deposition (PVD) using vacuum thermal evaporation. The aim of this work was to investigate the supramolecular arrangement of BuPTCD films, which implies to control the thickness at nanometer scale and to determine the molecular organization, the morphology (at namo and micrometer scales) and the crystallinity, besides the stability of this arragements as a function of the temperature. Optical properties (such as absorption and emission) and electrical properties (such as conductivity and photoconductivity) were also determined. The UV-Vis absorption spectra revelead a controlled growth (uniform) of the BuPTCD films. Atomic force and optical microscopy images showed a homogeneous surface of the film at nano and micrometer scales, respectively. The X-ray diffraction showed that the BuPTCD powder and PVD film have different crystalline structures, with the BuPTCD molecules head-on oriented in the PVD films, supported on the substrate surface by the side group (FTIR). This structure favors the light emission (photoluminescence) by the formation of excimers. The thermal treatment (200ºC for 10 min) does not affect the molecular organization of the PVD films, showing a thermal stability of the BuPTCD supramolecular arrangement under these cirncumstances. The electrical measuremets (DC) showed a linear increase of the current as a function of the tension, which is characteristic of ohmic behavior. Also, th films exhibited an increase of current by 2 orders of magnitude when exposed to light (photoconductive properties). Finally, BuPTCD films were exposed to vapor of trifluorpacetic acid (TFA)...
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Fernandes, José Diego. "Estrutura supramolecular de um derivado de perileno em filmes finos fabricados por evaporação térmica a vácuo /." Presidente Prudente, 2015. http://hdl.handle.net/11449/135964.
Full textAbstract:
Orientador: Carlos José Leopoldo ConstantinoBanca: Flavio Leandro de Souza
Banca: Fabio de Lima Leite
O Programa de Pós Graduação em Ciência e Tecnologia dos Materiais, PosMat, tem caráter institucional e integra as atividades de pesquisa em materiais de diversos campi
Resumo: O arranjo supramolecular de filmes finos orgânicos é um fator que influencia as propriedades ópticas e elétricas destes filmes e, consequentemente, nas aplicações tecnológicas que envolvem eletrônica orgânica. Nesta dissertação de mestrado, filmes finos de um derivado de perileno - acrônico BuPTCD foram produzidos via deposição por evaporação física (PVD) através de evaporação térmica a vácuo. O objetivo principal foi investigar o arranjo supramolecular do BuPTCD nesses filmes PVD, o que implica em controlar a sua espessura em escala nanométrica, determinar sua organização molecular, morfologia em escalas micro e nanométrica, e cristalinidade, bem como a estabilidade ou não, deste arranjo supramolecular em função da temperatura. Propriedades ópticas (absorção e emissão) e elétricas (condutividade e fotocondutividade) destes filmes PVD de BuPTCD também foram determinadas. A absorção no ultravioleta-visível revelou um crescimento controlado (uniforme) dos filmes PVD. As imagens de microscopia de força atômica e óptica mostraram uma superfície homogênea do filme em escalas nono e micrométrica, respectivamente. A difração de raios-X indicou que tanto o pó quanto o filme PVD possuem estruturas cristalinas distintas, estando as moléculas de BuPTD orientadas preferencialmente nos filmes PVD poicionadas verticalmente, apoiadas na superfície do substratos a partir do grupo latera (FTIR). Tal estruturação favorece a emissão de luz (fotoluminescência) a partir da formação de excímeros nos filmes PVD. O tratamento térmico (200ºC por 10 minutos) não afetou a organização molecular dos filmes, revelando a estabilidade térmica do arranjo supramolecular de BuPTCD nos filmes PVD nestas condições. As medidas elétricas (DC) mostraram um aumento da corrente em função da tensão que segue uma relação linear, característico de comportamento ôhmico. Além disso, os filmes apresentaram um aumento de 2...
Abstract: The supermolecular arrangement of organic thin films is a factor that infuences both optical and electrical properties of these films and, consequently, the technology, the technological applications involving organic electronics. In this dissertation, thin films of a perylene drivative (bis butylimido perylene, acronym BuPTCD wre produced by physical vapor deposition (PVD) using vacuum thermal evaporation. The aim of this work was to investigate the supramolecular arrangement of BuPTCD films, which implies to control the thickness at nanometer scale and to determine the molecular organization, the morphology (at namo and micrometer scales) and the crystallinity, besides the stability of this arragements as a function of the temperature. Optical properties (such as absorption and emission) and electrical properties (such as conductivity and photoconductivity) were also determined. The UV-Vis absorption spectra revelead a controlled growth (uniform) of the BuPTCD films. Atomic force and optical microscopy images showed a homogeneous surface of the film at nano and micrometer scales, respectively. The X-ray diffraction showed that the BuPTCD powder and PVD film have different crystalline structures, with the BuPTCD molecules head-on oriented in the PVD films, supported on the substrate surface by the side group (FTIR). This structure favors the light emission (photoluminescence) by the formation of excimers. The thermal treatment (200ºC for 10 min) does not affect the molecular organization of the PVD films, showing a thermal stability of the BuPTCD supramolecular arrangement under these cirncumstances. The electrical measuremets (DC) showed a linear increase of the current as a function of the tension, which is characteristic of ohmic behavior. Also, th films exhibited an increase of current by 2 orders of magnitude when exposed to light (photoconductive properties). Finally, BuPTCD films were exposed to vapor of trifluorpacetic acid (TFA)...
Mestre
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Baker, Michael. "“No gretter perile”: Over-mighty Subjects and Fifteenth-Century Politics in Malory’s Morte Darthur." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366284026.
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Piovesan, Erick. "Propriedades ópticas não lineares de compostos orgânicos e organometálicos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-09112009-140734/.
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Nos últimos anos, a busca por materiais com altas não linearidades ópticas tem crescido rapidamente devido as suas potencias aplicações em diversas áreas das ciências, que vão de biologia até fotônica. O processo de absorção de dois fótons, por exemplo, têm sido usado em limitação óptica, micro-fabricação tridimensional, armazenamento óptico e microscopia por fluorescência. Neste trabalho, investigamos o processo de absorção de dois fótons em moléculas orgânicas e organometálicas, buscando colaborar com os esforços que vêm sendo feitos para aprofundar a compreensão dos aspectos envolvidos na absorção não linear. Os espectros de absorção de dois fótons de derivados de perilenos tetracarboxílicos, derivados de fenil-bifenilamina e complexos acetilados de platina foram determinados através da técnica de Varredura Z com pulsos ultracurtos. Para os derivados de perilenos, utilizando a técnica de Varredura Z com luz branca, observamos sutis estruturas no espectro não linear, as quais estão relacionadas a estados permitidos por dois fótons na região do ultra-violeta. A existência de tais estados foi confirmada através de cálculos usando teoria do funcional da densidade. O espectro de absorção de dois fótons para os complexos acetilados de platina apresentam bandas em torno de 600 nm, com seções de choque relativamente altas, da ordem de 640 GM. A ampla janela de transparência desses compostos na região do visível os torna interessantes candidatos para dispositivos de limitação óptica assistida por dois fótons. Por fim, as amostras da família fenil-bifenilamina mostraram uma combinação entre os efeitos não lineares do grupo fenil-bifenilamina e do grupo azoaromático, a qual pode ser explorada em dispositivos de armazenamento óptico tri-dimensional.In the last few years, the design and characterization of novel materials exhibiting high optical nonlinearities is the subject of a fast-growing interest because of their potential application in various fields, from biology to photonics. Two-photon absorption processes, for example, have been used for optical limiting, three-dimensional microfabrication, optical data storage and fluorescence imaging. In this work we investigate the two-photon absorption in organic and organometallic molecules, aiming at the understanding of aspects related to the nonlinear absorption. The two-photon absorption spectra of perylene derivatives, phenyl-diphenylamine derivatives and Platinum Acetylide Complexes were measured using the Z-scan technique with ultrashort pulses. For perylene derivatives, using the white-light continuum Z-scan, we were able to observe subtle structures in nonlinear spectra, which are related to two-photon allowed states in the UV region. Such transitions were confirmed using density functional theory. The two-photon absorption spectrum of Pt-acetylene complexes revealed bands around 600 nm, with relatively high two-photon absorption cross-section in the order of 1000 GM. The broad transparence windows exhibited by these compounds in the visible make them promising candidates for optical limiting devices assisted by two-photon absorption. Finally, the phenyl-biphenylamine samples exhibited a combination between effects from the phenyl-biphenylamine group and the azoaromatic groups, which can be explored in tri-dimensional optical storage devices.
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Wang, Yu-Han, and 王鈺涵. "Analysis of chemical constituents in Perillae Fructus, Perillae Caulis, Perillae Folium by LC-MS." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/ty6ykn.
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碩士臺北市立大學
應用物理暨化學系
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Perillae Fructus、Perillae Caulis、Perillae Folium are traditional medicinal herbs. In previously research, abundant phenolic compounds, triterpenoids, and flavonoids were characterized from the leaf of P. frutescensare. These ingredients have been shown to have antioxidant, anti-aging, and anti-allergic effects. Perilla seeds is an important source of perilla oil. Perilla aldehyde in perilla oil can prevent cardiovascular disease and reduce triglycerides. Perilla stems can help to relieve pregnant discomforts and fetus, and can be used in health foods for improve memory and vision. Perilla leaves are also edible foods with high nutritional value. Perilla leaves, perilla seeds, and perilla stems are three traditional Chinese medicines with different medicinal use. The chemical composition should be different. Therefore, the purpose of this study is to explore the chemical composition of different parts of perilla, and to compare the compositional differences. The results showed that 75% methanol was the best extraction solvent and heating reflux extraction was the best extraction method. The crude extracts of perilla leaves, perilla seeds and perilla stalks were subjected to high performance liquid chromatography (HPLC). Rosmarinic acid was found as the main chemical component measured at wavelengths 254 and 330 nm in three species. Then, by liquid chromatography-high-resolution mass spectrometry (LC-MS) analysis, nineteen compounds were found from the leaves of the perilla leaves. Among them, thirteen compounds were identified. Twelve compounds were found from the stalks of the perilla, and five compounds were identified. Sixteen compounds were found from the perilla seeds, seven compounds were identified. Rosmarinic acid, apigenin, luteolin, and luteolin-7-glucoside are the same chemical constituents.The main components of perillae seeds are rosmarinic acid, luteolin and apigenin. The main components of perillae stems are rosmarinic acid and trace amounts of caffeic acid. The main components of perilla leaves are rosmarinic acid,luteolin-7-O-diglucuronide,apigenin-7-O-diglucuronide and Luteolin-7-O-glucuronidel.
Books on the topic "Perilene"
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İskender, Küçük. Periler ölürken özür diler. Beyoğlu, İstanbul: Yapı Kredi Yayınları, 1994.
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Peerless and periled: The paradox of America's world economic order. Stanford, California: Stanford University Press, 2012.
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Kiousopoulou, Tonia. E ephe merida Epoche , Nauplio, 1834-1835: Perile pseis, eurete ria. Athe na: Etaireia Melete s Neou Elle nismou, 1986.
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Ryökäs, Esko. Tärpeistä syväoppimiseen: Tenttien kehittäminen eli "Miten tiedän, miten tieto menee perille?" -projektin toteuttaminen ja tulokset. Joensuu: Joensuun yliopisto, 2005.
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Phournarake, Elene. E ephe merida E lios tou Panagio te Soutsou, 1833: Perile pseis, eurete ria. Athe na: Etaireia Melete s Neou Elle nismou, 1986.
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Metodos Para Elaborar Periles De Impurezas De La Heroina Y La Cocaina. United Nations Pubns, 2006.
Find full textBook chapters on the topic "Perilene"
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Wagner, Hildebert, Stefanie Püls, Talee Barghouti, Anton Staudinger, and Dieter Melchart. "Fructus Perillae – Zisuzi." In Chromatographic Fingerprint Analysis of Herbal Medicines Volume V, 55–61. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67062-1_6.
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"Acknowledgments." In Peerless and Periled, ix—x. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-001.
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"Preface." In Peerless and Periled, xi—xvi. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-002.
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"Introduction. Leadership renewed." In Peerless and Periled, 1–50. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-003.
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"1. Rebalancing the world economy." In Peerless and Periled, 51–89. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-004.
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"2. Rescuing the rescuer what should a twenty-first-century imf do?" In Peerless and Periled, 90–130. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-005.
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"3. Ruling out crises—or deglobalizing finance?" In Peerless and Periled, 131–77. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-006.
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"4. Endangered reign? dollar’s dilemma." In Peerless and Periled, 178–201. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-007.
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"5. Central banking at a crossroads." In Peerless and Periled, 202–24. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-008.
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"6. The myth of America’s decline." In Peerless and Periled, 225–48. Stanford University Press, 2020. http://dx.doi.org/10.1515/9780804784900-009.
Full textConference papers on the topic "Perilene"
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Liang, Ke, David Spencer, and Jianping Yuan. "Optimizing the Perilune of Lunar Landing Trajectories Using Dynamical Systems Theory." In AIAA/AAS Astrodynamics Specialist Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2012. http://dx.doi.org/10.2514/6.2012-4430.
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Liu, Xianggen, Huasong Zhong, Yi Meng, and Sheng Chang. "Optimization of Chang'e-3 landing preparative orbit perilune based on improved genetic algorithm." In 2014 11th International Computer Conference on Wavelet Active Media Technology and Information Processing (ICCWAMTIP). IEEE, 2014. http://dx.doi.org/10.1109/iccwamtip.2014.7073364.
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