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Dissertations / Theses on the topic 'Dibenzofuryl'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Cave, John Maxwell. "Synthesis and spectroscopic studies of some dibenzofuran derivatives." Thesis, University of Hull, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306023.

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2

Sebbar, Nadia. "Thermochemistry and kinetics for the oxidative degradation of dibenzofuran and precursors." Karlsruhe : Universitätsverlag, 2006. http://www.uvka.de/univerlag/volltexte/2006/185/.

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3

Sebbar, Nadia [Verfasser]. "Thermochemistry and kinetics for the oxidative degradation of dibenzofuran and precursors / by Nadia Sebbar." Karlsruhe : Univ.-Verl. Karlsruhe, 2007. http://d-nb.info/983197482/34.

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4

Ryu, Jae-Yong. "Dioxin formation on copper (II) chloride from chlorinated phenol, dibenzo-p-dioxin and dibenzofuran precursors." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/19050.

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5

LaVopa, Vito. "Catalytic hydrodeoxygenation of dibenzofuran in a trickle bed reactor : kinetics, poisoning, and phase distribution effects." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14694.

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6

Akram, Sadia. "Synthesis of Dibenzofurans via a Palladium Catalyzed Oxidative Ring Closure Reaction." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/honors_theses/29.

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The cannabinoid partial agonist BAY 59-3704 has been identified as an attractive target to explore structure-activity relationships at cannabinoid receptors for the development of a therapeutic agent for psychostimulant addiction. This thesis will describe the studies associated with the optimization of a palladium-catalyzed oxidative ring closure reaction for the synthesisof dibenzofuran analogues from substituted diaryl ethers. These dibenzofurans are viewed as rigid analogues of BAY 59-3704 and will provide useful information about molecular interactions at cannabinoid receptors. The scope

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7

Khalil, Mohammed Nabil Ahmed [Verfasser], and Ludger [Akademischer Betreuer] Beerhues. "Biosynthesis of biphenyl and dibenzofuran phytoalexins in Sorbus aucuparia cell cultures / Mohammed Nabil Ahmed Khalil ; Betreuer: Ludger Beerhues." Braunschweig : Technische Universität Braunschweig, 2013. http://d-nb.info/1175822302/34.

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8

Leeman, Whitney Renae. "Historic polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) concentrations in Riverside, California : evidence of a diffuse vehicular source /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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9

Lundgren, Kjell. "Properties and analysis of dioxin-like compounds in marine samples from Sweden." Doctoral thesis, Umeå universitet, Kemiska institutionen, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-24.

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Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (PCBs) have been assigned toxic equivalency factors (TEFs). These compounds are today routinely analysed with sophisticated analytical techniques. In a near future, there might be other dioxinlike compounds such as polychlorinated naphthalenes (PCNs), alkyl-polychlorodibenzofurans (R-PCDFs), and polychlorinated dibenzothiophenes (PCDTs) added to this list of toxic dioxin-like compounds. It is therefore important to have a readiness to analyse these new compounds in environmental sampl

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10

Tritz, Audrey. "Oxydation de pyrolyse du dibenzofurane à trés faibles concentrations : application à la réduction des émissions de dioxines." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0014/document.

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"Les dioxines" (PCDD/F : polychlorodibenzodioxines/furanes) sont des polluants organiques persistants émis dans l'atmosphère, provenant de combustions incomplètes. Cette étude concerne l'oxydation et la pyrolyse du dibenzofurane (DBF) choisie comme molécule modèle des PCDF. La réaction est étudiée dans un réacteur parfaitement agité entre 500 et 950°C, pour un temps de passage de 3 à 5s et à très faible concentration de DBF (~2 ppm) pour se rapprocher des conditions des incinérateurs (UIOM). Les espèces intermédiaires, formées lors de la décomposition du DBF, sont identifiées par GC/MS puis qu

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11

Persson, Ylva. "Chlorinated organic pollutants in soil and groundwater at chlorophenol-contaminated sawmill sites." Doctoral thesis, Umeå : Department of Chemistry, Umeå University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-989.

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12

Assefa, Anteneh. "Tracing and apportioning sources of dioxins using multivariate pattern recognition techniques." Doctoral thesis, Umeå universitet, Kemiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-102877.

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High levels of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in edible fish in the Baltic Sea have raised health concerns in the Baltic region and the rest of Europe. Thus, there are urgent needs to characterize sources in order to formulate effective mitigation strategies. The aim of this thesis is to contribute to a better understanding of past and present sources of PCDD/Fs in the Baltic Sea environment by exploring chemical fingerprints in sediments, air, and biota. The spatial and temporal patterns of PCDD/F distributions in the Baltic Sea during the 20th c

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13

Sundqvist, Kristina. "Sources of dioxins and other POPs to the marine environment : Identification and apportionment using pattern analysis and receptor modeling." Doctoral thesis, Umeå universitet, Kemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-22266.

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In the studies underlying this thesis, various source tracing techniques were applied to environmental samples from the Baltic region. Comprehensive sampling and analysis of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in surface sediments in Swedish coastal and offshore areas resulted in a unique data set for this region. Nearly 150 samples of surface sediments were analyzed for all tetra- to octa-chlorinated PCDD/Fs. The levels showed large spatial variability with hotspots in several coastal regions. Neither Sweden nor the EU has introduced guideline v

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14

Chuan, Ku Yu, and 古玉全. "Dibenzofuran-Based Organic Electroluminescent Materials." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/17487463565739316073.

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碩士<br>中國文化大學<br>應用化學研究所<br>95<br>A new series of 2,8-disubstituted dibenzofuran derivatives (dbf) have been synthesized via palla¬dium-catalyzed coupling reactions of 2,8-diiodo-dibenzofuran and diarylamines. These compounds are amorphous with a glass transition temperature ranging from 65 to 193 °C. The emission colors of the mate¬rials vary from blue to bluish green. Two types of double-layer organic light-emitting diodes (OLEDs) were fabricated using these compounds as hole-transporting/emitting layers and TPBI or Alq3 as an elec¬tron-transporting layer: (I) ITO/dbf/TPBI/LiF/Al and (II) ITO

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15

Duarte, Filipe Valente. "Dibenzofuran exposure: cellular and mitochondrial damage." Doctoral thesis, 2012. http://hdl.handle.net/10316/21299.

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Tese de doutoramento em Biociências, no ramo de especialização em Biologia Celular e Molecular, apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>In the modern world, one of the main issues that mankind tries to control and improve, concerning its well-being, is health. In the last decades, several progresses have been achieved in order to improve health and also to increase overall lifespan. However, modern lifestyle also brought changes that continuously threaten health. In an “industrial” world, environmental pollution increased largely, and its effects are re

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16

Hsu, Jing-Fang, and 許菁芳. "Evaluation of polychlorinated dibenzo-p-dioxin and dibenzofuran congener profiles and levels in Taiwan residents." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/45958032285604145025.

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博士<br>國立成功大學<br>環境醫學研究所<br>97<br>Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/PCDFs) are unintentional by-products in various thermal and industrial processes and ubiquitous environmental pollutants in most industrialized countries. Exposure to PCDD/PCDFs can result in a broad spectrum of health effects and the International Agency for Research on Cancer (IARC) concluded that 2,3,7,8-tetrachlorodibenzo-p-dioxin is a human carcinogen. Humans are always exposed to mixtures of PCDD/PCDFs from various media (food, air, soil) in the environment. Analytic techniques deve

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17

Kuei-MinYu and 郁揆民. "Environmental Impact Assessment of A Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Contained Fly Ash Treatment Plant." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/13852294664151577238.

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博士<br>國立成功大學<br>環境工程學系碩博士班<br>98<br>The dioxin-like compounds are one of the most hazardous material groups in the world. Electric-arc furnace-dust treatment plant (EAFDTP) has been defined as the major PCDD/F source in many countries due to its raw material containing huge amount of PCDD/Fs and chloride and its thermal process provide an environment for PCDD/F formation. The major objective of this study is to evaluate the PCDD/F environmental impact of a selected EAFDTP in Taiwan. The research is mainly contained two parts: the first part is to investigate the size distributions of particul

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18

Jing-OuLin and 林京歐. "Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Characteristics of both Atmospheric Deposition and Soil in the Northern Taiwan." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/32351675414799575515.

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碩士<br>國立成功大學<br>環境工程學系碩博士班<br>101<br>This study investigates the characteristics of polychlorinated dibenzo -p-dioxins and dibenzofurans (PCDD/Fs) in the atmosphere and soils of northern Taiwan. The ambient air and soils were collected seasonally in the vicinity of three municipal solids waste incinerators to determine the concentration of PCDD/Fs. Gaseous and particle concentrations were both obtained by measurement and simulation, and dry and wet deposition fluxes and scavenging ration were also developed. The PCDD/F congener profiles of soils show that 1,2,3,4,6,7,8-HpCDD (3.57%) , OCDD (89

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19

Mosallanejad, Seyedehsara. "Heterogeneous catalytic reactions of 2-chlorophenol." Thesis, 2016. http://hdl.handle.net/1959.13/1317520.

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Professional Doctorate - Doctor of Philosophy (PhD)<br>Polychlorinated dibenzo-p-dioxins and dibenzofuran (PCDD/Fs) constitute a major toxic component of environmental pollutants. It is well documented that formation of these compounds accelerates in the presence of transition metals especially copper and iron. It has also been established that chlorinated phenols and chlorinated benzenes play a vital role in their formation. Numerous studies have been reported regarding surface-mediated formation of PCDD/Fs from reactions of chlorinated phenols. However, fewer experimental studies have been p

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20

D'Enza, Marina [Verfasser]. "Genetic and biochemical characterization of two new extradiol dioxygenases of Sphingomonas sp. strain RW1 and construction of two gene cassettes for biodegradation of dibenzofuran and dioxin / von Marina D'Enza." 2002. http://d-nb.info/965186105/34.

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