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Wetekam, Harald. "Energieeinsparung an der Strassenbeleuchtung in Kassel durch elektronische Leistungsabsenkung." Kassel : Kassel Univ. Press, 2007. http://nbn-resolving.de/urn:nbn:de:0002-2541.
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Jacobson, Lin. "Do touch : produkter med fokus på känselupplevelsen." Thesis, Konstfack, Industridesign, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-2836.
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I mitt examensarbete har jag koncentrerat mig på produkters taktila och haptiska kvaliteter. Jag ville bland annat undersöka vad som upplevs som intressant i olika former när man inte ser dem och hur man kan få föremål att kännas intressanta och uttrycksfulla utifrån ett känselperspektiv. Bakgrunden är att jag ofta kommit på mig själv med att formge saker till största delen för ögat medan jag ofta uppskattar produkter främst utifrån hur de känns att använda. För att få arbeta med olika aspekter av känsel valdes tre produkter som man möter och använder på olika sätt. Produkterna är en dimmer, en väckarklocka, och ett överfallslarm. Dimmern har inspirerats från rörelser man minns med kroppen. Rörelser som är inbjudande och lustfyllda, som att dra en pinne mot ett staket eller att dra fingrarna över tangenterna på ett piano. Arbetet med väckarklockan har handlat mycket om hur man tar in information med känseln och hur man kan använda sig av taktila och haptiska egenskaper på ett meningsfullt sätt i produkten. Överfallslarmet har fått sin form utifrån diskussioner kring skissmodeller som av försökspersonerna endast fått upplevas med känseln. Målet har varit att få överfallslarmet att upplevas som tryggt, som att hålla en vän i handen.<br>När vi rör vid saker kommer vi i direktkontakt med dem på ett sätt som vi inte gör genom att bara se på dem. Med känseln går det inte att stå på avstånd och betrakta något lite halvslött, för att uppleva objekt med känseln krävs mer engagemang. Känseln har som bekant mycket att göra med hur vi upplever kvaliteten hos produkter (tex tyngd och mtrl). Många av mina favoritsaker är favoriter just på grund av hur de känns att använda och ändå kommer jag ofta på mig själv med att formge saker till största delen för ögat. I mitt examensarbete har jag därför låtit känseln få spela huvudrollen.
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Bradbury, James Edward. "AKD sizing reversion : the vapor phase adsorption of the thermal decomposition products of alkyl ketene dimmer onto cellulose substrates." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/7013.
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Ebrahimi, Babak. "The Biology of Plant-Mosquito Associations." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376907715.
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Martinez, Peña Adolfo. "Solcellsdriven belysning för gång- och cykelvägar på landsbygden." Thesis, KTH, Hälsoinformatik och logistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259757.
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I detta examensarbete utreds förutsättningarna för solcellsdriven belysning som belysningsalternativ för gång- och cykelvägar på landsbygden. Det finns gång- och cykelvägar i landsbygden som sällan trafikeras, detta gör att kommuner och vägföreningar lämnar dem utan belysning. Därför är det önskvärt att kunna erbjuda en belysningsteknik som har noll elkostnader och ingen kabeldragning. Studiens hypotes var att solcellsdriven belysningsanläggningar kan rekommenderas som gatubelysning för gång- och cykelvägar på landsbygden. Resultaten visar att Sveriges låga solinstrålning är den största utmaningen för att öka investeringsviljan hos kommuner och vägföreningar. För att öka energibesparing hos solcellsdriven belysning behövs därför avancerad närvarostyrd teknik. Tidigare installerad solcellsbelysning har visat positiv resultat. Resultaten visar också att belysningsanläggning med närvarostyrd solcellsbelysning kan ge en ekonomisk besparing på upptill 58 % jämfört med en nätansluten LED-belysning. Besparingen varierar beroende typ av solcellsbelysning som används i belysningsanläggningen. Solcellsdriven belysningsteknik minskar också koldioxidutsläpp.<br>In this thesis the solar-powered lightning are investigated as lightning options forwalk and cycle paths in countryside. Rarely used walk and bicycle paths in thecountryside are left without lighting by municipalities and roads associations.Therefore, it is desirable to offer a lightning technology that has zero electricitycosts and no cable routing. The study’s hypothesis was that solar-powered lightning installations can be recommendedas street lightning for walk and cycle paths in the countryside. resultsshow that solar radiation in Sweden is low which makes it difficult for Sweden’smunicipalities and associations willing to invest. To increase energy savings insolar lighting system, advanced presence-controlled technology is needed. The results show that presence-controlled solar lightning can provide an economicalsaving of 58 % compared to a LED network connected lightning. The savingvary depending on the type of solar lightning used. Solar LED street lighting technologyalso reduces carbon dioxide emissions.
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Danielsson, Johan. "LED-lampor och dimrar : Mätningar av elkvalitet och ljusflimmer." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-69393.
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För konsumenter är det svårt att finna utförlig information om vilka dimrar och LED-lampor som fungerar bäst tillsammans. Konsumenter behöver god vägledning att välja rätt produkter för att man vill ha en lampa som klarar av att lysa som den ska och inte orsakar synligt flimmer. Det pågår även forskning för att se hur icke-visuellt flimmer kan vara hälsoskadligt. Även en god elkvalitet är viktig, då dålig elkvalitet kan skada produkterna och även påverka annan utrustning som finns på samma nät. Med ljusmätare och elkvalitetsmätutrustning utfördes mätningar av flimmer- och elkvalitetsrelaterade faktorer på olika kombinationer av LED-lampor och dimrar. Även synliga egenskaper observerades. Mätningarna visar att flimmer påverkas mestadels av lampan medan både lampa och dimmer påverkar de elkvalitetsrelaterade faktorerna. Observationer av tester av olika kombinationer indikerar att val av både dimmer och lampa påverkar möjligheten att dimra ner till helt släckt lampa. Problemfri dimring till max-nivå uppnås med större säkerhet med LED-lampor utan filament. Arbetet visar att det behövs fördjupade studier inom området för att konsumenten ska kunna ges information om vilka produkter han eller hon bör välja, då val av produkt har bevisats spela stor roll.
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Arnstein, Stephen A. "Pi-pi to full ci." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28269.
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Thesis (M. S.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2009.<br>Committee Chair: Sherrill, C. David; Committee Member: Bredas, Jean-Luc; Committee Member: Hud, Nicholas; Committee Member: Perry, Joseph.
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Karlsson, Eric, and Simon Nyström. "Upplevelsen av flimmer från ljusreglerade filament LED-ljuskällor." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik och belysningsvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-37864.
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Denna studie har genomförts i form av en undersökning med 25 respondenter. Arbetet harsyftat till att fackmän inom belysningsbranschen samt privatpersoner och intressenter ska fåen indikation på hur människan uppfattar ljuset från fasdimrade LED-ljuskällor i privata hem.Studien har studerat två frågeställningar gällande människans upplevelse av flimmer blandannat hur känslig människan är för flimmer hos en ljusreglerad LED-ljuskälla innan detuppfattas som obekvämt. Vetenskaplig litteratur har använts för att få en förståelse och djuparekunskap kring problematiken gällande människans hälsopåverkan vid exponering av flimmer,samt vilka riktlinjer och möjliga tillvägagångssätt som finns för att lösa denna problematik. Föratt ta reda på hur väl människan uppfattar flimmer samt hur upplevelsen av obekvämlighetenpåverkas har en enkät tagits fram till studien. Undersökningen konstaterar att människoruppfattar flimmer i olika mängd, trots frekvenser över 90Hertz (Hz). Genom data från digitalamätningar och inhämtad empiri från arbetets undersökningsstudie kan man konstatera att detinte enbart är frekvensnivån som påverkar människans uppfattning av flimmer, utan ävenljuskällans andel flimmerprocent. Ett samband mellan upplevd obekvämlighet och flimmer kananas, men inte fastslås som ett tydligt resultat. Arbetet avgränsades genom att undersökningenenbart utfördes under en kortare period med ett färre antal respondenter.<br>This study has been carried out in the form of a survey with 25 respondents. The work has aimedto give professionals and individuals an indication of how people perceive the light from phasedimmedLED light sources in private homes. The study has investigated two issues regardingthe human experience of flicker, and how sensitive human beings are to flicker from a phasedimmedLED light source before it will be perceived as inconvenient. Scientific literature hasbeen reviewed to gain an understanding and deeper knowledge about the impact of flicker onhuman health, and which guidelines and possible approaches there are to solve the problem. Asurvey has been developed to find out if flicker is perceived by humans, and how the perceptionof inconvenience is experienced. The study found out that people perceive flicker differently,despite measured frequencies above 90 Hertz (Hz). Through data from digital measurementsand acquired empirical evidence from the study’s results, it is not only the frequency level thataffects humans perception of flicker, but also the percentage of light emitted from the lightsource. A correlation between perceived inconvenience and flicker can be noted, but notdetermined as a clear result. The work was limited by only investigating a small population ofrespondents over a short period of time.
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Tabor, Christopher Eugene. "Some optical and catalytic properties of metal nanoparticles." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31794.
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Thesis (Ph.D)--Chemistry and Biochemistry, Georgia Institute of Technology, 2010.<br>Committee Chair: El-Sayed, Mostafa; Committee Member: Perry, Joseph; Committee Member: Wang, Zhong; Committee Member: Whetten, Robert; Committee Member: Zhang, John. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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L'Écuyer, Tristan Simon. "Water dimer atmospheric absorption." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq24864.pdf.
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Kollipost, Franz. "Schwingungsdynamik in O−H···O-verbrückten Aggregaten: FTIR-Spektroskopie vom Nah- bis zum Ferninfraroten." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://hdl.handle.net/11858/00-1735-0000-0023-9644-9.
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Hamdan, Abdullah. "Infrared spectroscopy of methane dimer." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=978829921.
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Wilkinson, Luke. "Electron transfer in paddlewheel dimers of dimers." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/9694/.
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Guhathakurta, Anjan. "Topological specificity of ColE1 dimer resolution." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321370.
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Broomhead, Nathan. "Dimer models and Calabi-Yau algebras." Thesis, University of Bath, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500694.
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In this thesis we use techniques from algebraic geometry and homological algebra, together with ideas from string theory to construct a class of 3-dimensional Calabi-Yau algebras. The Calabi-Yau property appears throughout geometry and string theory and is increasingly being studied in algebra. Dimer models, first studied in theoretical physics, give a way of writing down a class of non-commutative algebras, as the path algebra of a quiver with relations obtained from a 'superpotential'. Some examples are Calabi-Yau and some are not. We consider two types of 'consistency' condition on dimer models, and show that a 'geometrically consistent' dimer model is 'algebraically consistent'. Finally we prove that the algebras obtained from algebraically consistent dimer models are 3-dimensional Calabi-Yau algebras.
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Qian, Yue, and 钱玥. "Electronic spectroscopy of transition metal dimer." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hub.hku.hk/bib/B50899971.
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This thesis reports laser spectroscopic studies of gas-phase transition metal dimers using laser ablation/reaction with free jet expansion and laser-induced fluorescence (LIF) spectroscopy technique. Themolecules studied in this work are palladium dimer (Pd2) and vanadium dimer (V2). Many compounds formed from these transition metals are important and functional catalysts in chemical reactions. Therefore, it is of great significance to start from the fundamental level to understand the properties and characteristics of the metal bonding and also the behavior of these metals when reacting with other chemicals.
The electronic transitions of Pd2and V2in the visible region were studied. Gas-phase Pd2and V2moleculeswereproduced by laser ablation of palladium and vanadium metal rod, respectively. For the Pd2molecule, eleven vibrational bands were recorded and analyzed, and have been assigned to the 〖[17.1]〗^3 □_g□ X^3 □_u^+ transition system. The bond length and vibrational frequency of the ground X^3 □_u^+ state were determined to be 2.47 Å and 211.38 cm-1, respectively. This is the first experimental investigation of the electronic transitions of Pd2.For the V2molecule,six vibrational bands were observed and assigned to a new 〖[19.6] 〗^3 □_u^□□ X^3 □_g^□ transition system. Molecular constants for the 〖[19.6] 〗^3 □_u^□ excited state were obtained from high-resolution LIF spectra. The electronic structure of the Pd2andV2molecules was discussed in detail using molecular orbital energy level diagrams, which is important for understanding the nature of chemical bonding in these dimers. Comparison of the transition metal dimers studied in this work with other dimers is also presented.<br>published_or_final_version<br>Chemistry<br>Master<br>Master of Philosophy
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Macdonald, James William. "Laser photoionisation spectroscopy of silver dimer." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/11074.
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A number of experimental techniques have been brought together to create a powerful investigative tool. This laser vaporisation, supersonic expansion, laser ionisation mass spectrometry amalgam has allowed the study of two distinct types of molecular species. Many heteronuclear diatomic species have been prepared and investigated for the first time. These novel molecules are of interest due to their utility as bulk phase alloys. Mass spectra are presented for many such combinations. Homonuclear diatomic species have been analysed using these techniques for some time. In particular, this work has focused on transition metal species as this is one of the few methods which permits such study. Spectroscopic investigations of the A, B and C states of the silver dimer (Ag<SUB>2</SUB>) molecule are presented here. The analysis of this work has provided the following rotational constants for these states; X state B<SUB>e</SUB> = 0.04878 cm<SUP>-1</SUP> A state B<SUB>e</SUB> = 0.04432 cm<SUP>-1</SUP> B state B<SUB>e</SUB> = 0.04544 cm<SUP>-1</SUP> and C state B<SUB>0</SUB> = 0.04851 cm<SUP>-1</SUP>. All values are for the <SUP>107,109</SUP>Ag<SUB>2</SUB> isotopomer. The first ionisation potential (I.P.) of any molecular system is an important parameter in the understanding of that species. The value of the I.P. has been evaluated for the silver dimer molecule under differing experimental conditions. It is reported here both under the influence of a potential field (I.P. = 61658.4 cm<SUP>-1</SUP>) and under field free conditions (I.P. = 61740.0 cm<SUP>-1</SUP>).
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Griffiths, Hywel David. "Nucleoprotein complexes in ColE1 dimer resolution." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268532.
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Hossain, Mir Ashad. "Does SABP2 Exist As a Dimer?" Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/2255.
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Salicylic acid binding protein 2 (SABP2) is one of the key enzymes in salicylic acid-dependent plant defense pathway. SABP2 is a 29 kDa protein present in extremely low abundance in plants and it catalyzes the conversion of signaling molecule methyl salicylate into salicylic acid. Although it has been shown that 6x His-tagged SABP2 over expressed in E. coli is a homodimer, its exact conformation in planta is still unknown. Therefore, we proposed to determine if SABP2 exist as a dimer and/or monomer under natural condition. To verify the exact conformation of native SABP2 protein in plant, SABP2 was purified from wild type tobacco using a 5-step purification protocol. Analysis of purified SABP2 in gel filtration and immunoblot assay suggested that SABP2 exists as a monomer in tobacco plant. Studies on SABP2 conformation will give us insight into the structure and functional relationship of this protein in salicylic acid-dependent disease resistance pathway.
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Abdul-Hassan, Wathiq Sattar. "Matériaux moléculaires électro-stimulables et assemblages organisés reposant sur des briques élémentaires de type pi-dimères." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAV005/document.
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Le but de cette proposition est d'explorer un nouveau concept de matériaux moléculaires sensibles à l'oxydoréduction. Les architectures commutables électron-sensibles ont longtemps été reconnues comme le choix le plus simple et le plus viable pour produire des dispositifs pratiques, mais la conception efficace de tels systèmes à l'échelle moléculaire reste un défi. L'approche développée dans ce projet repose sur la production électrochimiquement déclenchée de radicaux pi à partir de dérivés de viologène, l'objectif étant d'induire la formation d'une liaison non-covalente et réversible entre ces radicaux pi pour contrôler la conformation des échafaudages supramoléculaires. Les nanomatériaux comprendront des fils moléculaires provenant de polymères de coordination et des fils moléculaires produits par des interactions π le long de l'axe du fil, mis en œuvre par des interactions faibles périphériques telles que l'agrégation des chaînes latérales lipophiles ou la liaison H. Les efforts initiaux se concentreront sur l'optimisation de la formation de π-dimères et de pimer, avec ou sans assistance d'interactions secondaires. Après avoir déterminé les paramètres qui produisent l'auto-assemblage dirigé π le plus efficace, des motifs basés sur les viologènes appropriés seront introduits dans des blocs de construction plus sophistiqués. Tout au long de la synthèse des assemblages, la π-dimérisation utilisée comme force motrice principale pour l'auto-assemblage des nanomatériaux peut être consolidée par un blocage covalent des structures. En fin de compte, l'électrostimulation des systèmes π fournira des assemblages moléculaires dynamiques dans lesquels la morphologie sera sensible aux stimuli redox<br>The aim of this proposal is to explore a new concept of redox-responsive molecular materials. Electron-responsive switchable architectures have long been recognized as the most straightforward and viable choice to produce practical devices but efficiently designing such systems on the molecular scale still remains a challenge. The approach developed in this project relies on the electrochemically triggered production of pi-radicals from viologen derivatives, the objective being to induce the formation of non-covalent and reversible binding between these pi-radicals to control the conformation of supramolecular scaffolds. The nanomaterials will comprise molecular wires arising from coordination polymers and molecular wires produced by π-interactions along the wire's axis implemented by peripheral weak interactions such as lipophilic side chain aggregation or H-bonding. The initial efforts will focus on the optimization of π-dimer and pimer formation, with or without assistance of secondary interactions. After determining the parameters that yield the most efficient π directed self-assembly, suitable viologen based motifs will be introduced in more sophisticated building blocks. Throughout the synthesis of the assemblies, π-dimerization that is used as the primary driving force for the self-assembly of nanomaterials may be consolidated by covalent locking of the structures. In the end, the electro-stimulation of π systems will provide dynamic molecular assemblies in which the morphology will be responsive to redox stimuli
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Fernandes, Joana Rita Cardoso Coelho da Silva e. Mendes. "Clínica de animais exóticos e silvestres." Master's thesis, Universidade de Évora, 2015. http://hdl.handle.net/10174/17614.
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O presente trabalho decorre do estágio curricular, do Mestrado Integrado em Medicina
Veterinária da Universidade de Évora, realizado pela autora na área de clínica de animais
exóticos, no Centro Veterinario Los Sauces. Visa descrever, as atividades desenvolvidas no
decorrer do estágio e avaliar os níveis plasmáticos de Dímero-D e fibrinogénio na investigação
de distúrbios tromboembólicos, em Psittacus erithacus. No presente estudo participaram 97
aves distribuídas por três grupos: I) aves clinicamente saudáveis ( =61), II) aves clinicamente
doentes com suspeita diagnóstica de distúrbios tromboembólicos ( =13) e III) aves
clinicamente doentes, sem evidência de distúrbios tromboembólicos ( =23). As concentrações
de Dímero-D foram determinadas pelo teste quantitativo Blue D-Dimer, que utiliza uma
metodologia de fluxo imunoturbidimétrico. O valor médio de Dímero-D no grupo I foi 11 ng/mL,
no grupo II 3033 ng/mL e no grupo III 1265 ng/mL. Demonstrou-se que os níveis plasmáticos
normais de Dímero-D constituem um importante parâmetro na exclusão diagnóstica de
distúrbios tromboembólicos; CLINIC OF EXOTIC AND WILDLIFE ANIMALS
ABSTRACT:
This master's thesis is based in traineeship of the Integrated Master Degree in Veterinary
Medicine at the University of Évora, conducted by the author in the clinical field of exotic
animals in Centro Veterinario Los Sauces. This work aims describing the developed activities
during the internship and evaluating the plasma levels of D-dimer and fibrinogen in Psittacus
erithacus. In this study 97 participating birds where distributed in three groups: I) clinically
healthy birds ( =61), II) clinically ill birds with thromboembolic disorders diagnostic suspicion
( =13) and III) birds clinically ill, with no evidence of thromboembolic disorders ( =23). The
D-dimer concentrations were determined by quantitative test Blue D-dimer, which uses a
immunoturbidimetric flow method. The average value of D-dimer in the group I was 11 ng/mL in
group II 3033 ng/mL and group III 1265 ng/mL. It has been demonstrated that the normal
plasma levels of D-dimer are an important parameter for diagnostic exclusion of
thromboembolic disorders
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Attwood, Brian Christopher. "Global phase diagram for monomer/dimer mixtures." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20011012-113555.
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<p>The objective of this thesis is to calculate the global phase diagram predicted by the Generalized Flory Dimer equation of state for mixtures of square-well monomers and dimers. Towards that goal, we first extend the Generalized Flory Dimer (GFD) theory for hard sphere monomer/dimer mixtures to square-well monomer/dimer mixtures. Theoretical predictions for the compressibility factor as a function of volume fraction are compared to discontinuous molecular dynamic simulation results on monomer/dimer mixtures at well depth ratios 0.5 - 1.5 and dimer mole fractions 0.111 - 0.667 and on monomers/8-mer mixtures at well depth ratios 0.5 - 1.5. Agreement is found generally to be good and consistent with the agreement obtained when the GFD theory is applied to other square-well systems. Next we calculate the GFD predicted global phase diagram for square-well monomer/dimer mixtures using a brute force method. The locus of critical points in the direction implies that monomer/dimer systems have a greater tendency towards liquid-liquid immiscibility in our system than in monomer/monomer systems.<P>
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Danby, Grahame. "Close coupling calculations of dimer energy levels." Thesis, Durham University, 1985. http://etheses.dur.ac.uk/7243/.
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The aim of this thesis is to calculate the bound state energies of molecular dimers. The problem is formulated for a system consisting of any two diatomic molecules, treated as rigid rotors. Simplifications which arise from symmetry considerations are fully discussed. The de Vogelaere and R-matrix propagator algorithms have been used to solve the resulting systems of coupled second order differential equations. Their numerical convergence properties are compared in test calculations on the Ar-HCl system. The above methods are used to calculate the bound state energies of H(_2)-H(_2), using four separate ab initio potentials. The CI potential of Meyer, Schaefer and Liu (designated "M80") is found to give the best agreement with spectroscopic measurements, though a small shift in the position of the repulsive wall is indicated. The M80 potential is then used in the remaining calculations; these include the evaluation of the energies of resonances and bound states lying above the dissociation limit of the dimer, corresponding to rotationally excited H (_2). The results of these calculations are used to assess the validity of approximations made in the proposed identification of H (_2)-H (_2) features in the far infrared spectra of the Jovian atmosphere. The Born-Oppenheimer approximation permits the use of the M80 potential to calculate the bound states and resonances of D (_2) -D (_2). That some of these resonances have dual Feshbach/shape character is noted. The dimer structure, accompanying the observed near infrared S (_1)(0) and Q(_1)(0) + S(_o)(0) spectra in ortho-deuterium, is modelled by treating the two D(_2) molecules as distinguishable rigid rotors. We conclude that the experiments provide evidence both for rotational splitting of the levels and for internal rotational predissociation. Alternative line assignments to those hitherto made are also suggested. We end with a general discussion in which suggestions for future work are made.
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Le, Masurier Peter John. "Magnetic resonance studies of dimer liquid crystals." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243072.
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Tapia, Amador Jesus. "Combinatorial Reid's recipe for consistent dimer models." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669022.
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The aim of this thesis is to generalise Reid's recipe as first defined by Reid for $G-\Hilb(\mathbb{C}^3)$ ($G$ a finite abelian subgroup of $\SL(3, \mathbb{C})$) to the setting of consistent dimer models. We study the $\theta$-stable representations of a quiver $Q$ with relations $\mathcal{R}$ dual to a consistent dimer model $\Gamma$ in order to introduce a well-defined recipe that marks interior lattice points and interior line segments of a cross-section of the toric fan $\Sigma$ of the moduli space $\mathcal{M}_A(\theta)$ with vertices of $Q$, where $A=\mathbb{C}Q/\langle \mathcal{R}\rangle$. After analysing the behaviour of 'meandering walks' on a consistent dimer model $\Gamma$ and assuming two technical conjectures, we introduce an algorithm - the arrow contraction algorithm - that allows us to produce new consistent dimer models from old. This algorithm could be used in the future to show that in doing combinatorial Reid's recipe, every vertex of $Q$ appears 'once' and that combinatorial Reid's recipe encodes the relations of the tautological line bundles of $\mathcal{M}_A(\theta)$ in $\Pic(\mathcal{M}_A(\theta))$.
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Pabari, Josephine Clare. "Microwave spectroscopy of near-dissociation molecular ions." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342636.
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Mansouri, Abdelkader. "Le moteur asynchrone monophase à vitesse variable : modélisation et alimentation par convertisseurs statiques." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL096N.
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L’objet de nos travaux concerne la modélisation et l'alimentation par convertisseur statique continu-alternatif et alternatif-alternatif des moteurs asynchrones monophasés à condensateur. Dans la première partie de ce mémoire, nous décrivons un modèle de type circuit incluant les harmoniques d'espace. Afin de dégager l'influence du couplage autre que par le fondamental, nous avons calculé les paramètres de ce modèle à partir des dimensions mécaniques d'un moteur. Après avoir effectué une identification expérimentale des grandeurs correspondant au modèle réduit au fondamental, nous avons simulé le comportement de la machine en régime permanent et en régime transitoire. En vue de régler la vitesse avec de bonnes performances sur le couple, nous avons réalisé un onduleur de tension à fréquence variable. La commande des transistors de puissance constituant ce convertisseur est réalisée au moyen d'un microcontrôleur et suivant un algorithme reposant sur une loi de modulation de largeur d'impulsion à trois niveaux. Le coût étant un critère capital dans les applications à la domotique, nous avons d'abord analyse la commande en vitesse de la machine alimentée par un gradateur à triac ; la machine est trop bruyante. C’est pourquoi nous proposons une alimentation de type hacheur à interrupteur bidirectionnel qui permet d'éliminer ce défaut
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Jimenez, Segura Marco Polo. "Dimer solid-liquid transition in the honeycomb-lattice ruthenate Li2-xRuO3." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/216167.
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Leplus, François. "Sur la modélisation numérique des transformateurs monophasé et triphasé : Application aux montages redresseurs et gradateurs." Lille 1, 1989. http://www.theses.fr/1989LIL10073.
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Méthode de résolution des équations du système modélisé, indépendante de son environnement électrique, donnant un programme modulaire, utilisable dans un ensemble plus complexe. Extension de la méthode et procédure d'identification des paramètres. Expérimentation en fonctionnement redresseur et gradateur
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Yoon, Kisun. "Synthesis and Applications of Non-spherical Dimer Colloids." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10568.
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Colloids are promising building blocks in material synthesis because of their controllability of size and surface properties. The synthesis of chemically and/or geometrically anisotropic colloidal particles has received attentions with the expectation of building blocks for complex structures. However, the synthesis of anisotropic colloidal particles is by far more difficult than the synthesis of spherical colloidal particles. Lack of monodispersity and productivity of many anisotropic particles often limits their applications as a building block for complex structures. Thus, it is highly desirable to develop methods which can produce a large amount of monodisperse non-spherical particles with controllable asymmetric surface properties. This dissertation details the work for developing such a method. The major result of this dissertation is a synthetic method to produce monodisperse non-spherical colloids with anisotropic surface property in a large quantity. The anisotropic colloid, which we call it as Dimer particle, has two fused lobes like a dumbbell and each lobe’s size can be independently controlled. We present a novel method to synthesize sub-micron size Dimer particles. This method can produce a large amount of submicron-sized Dimer particles with good monodispersity and well-controlled shape. Submicron-sized Dimer particles have been highly desired since they can be used as a building block for self assembly using Brownian motion, colloidal surfactant for Pickering emulsion, and photonic materials. To fully take advantage of the anisotropy of the particles, we develop a facile method to tailor the surface property of each lobe independently by asymmetrically coating the particles with gold nanoparticles. This method doesn’t need the arrangement of particles onto any type of interfaces. Asymmetric coating of gold nanoparticles can be carried out simply by mixing Dimer particles with gold nanoparticles. The formation mechanism of the submicron-sized Dimer particles is explained with evidences. Finally, we illustrate that Dimer particles show rich phase behavior under electric fields and explain the behavior by considering various interactions involved in the system. Our investigation shows that electric field can effectively control the orientation and assembled structure of Dimer particles. In conclusion, these asymmetrically functionalized Dimer particles are promising building blocks to generate suprastructures that will be useful in photonic, electronic and diagnostic applications.<br>Engineering and Applied Sciences
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Yao, Jian. "NMR Study of Neurophysin Dimer Dissociation by Cosolvents." PDXScholar, 1996. https://pdxscholar.library.pdx.edu/open_access_etds/5209.
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Neurophysins (NPs) make up a relatively small, stable, and highly soluble class of proteins. They have physiological roles of storage and stabilizing' of peptide hormones oxytocin and vasopression within the posterior pituitary neurosecretory granules. At the concentration of NP found within the granules, NP would exist as a dimer in the absence or presence of bound peptide. The NP monomer-monomer interface involves B-sheet/ B-sheet contact, which can be modulated by the presence of cosolvent. This remarkable feature of NP makes it a model for Alzheimer's disease. One of the characteristics of Alzheimer's disease is the presence of plaques of B-amyloid protein that are deposited on the brain. The plaques are rich in B-structure. Being water-insoluble makes them impossible to be directly studied by solution-state NMR. The purpose of this study was to modify the solvent system to lower the NP dimerization constant and characterize the nature of solvent on dissociation of dimer. A set of cosolvents was selected to try to reduce NP dimerization at relatively high concentration of NP. The organic cosolvents included deuterated methanol, dimethyl sulfoxide, ethyl acetate, propionitrile, and acetonitrile. Also, the protein unfolding reagents, deuterated urea and guanidine monohydrochloride, were tried. The interaction between bromophenol blue and NP was also studied because this dye binds predominately to the dimer form of NP. Highresolution NMR techniques were used to sense the NP-I dimer I monomer equilibrium. Among the organic cosolvents used, only acetonitrile and propionitrile were found shift the dimer ~ monomer equilibrium significantly toward monomer. The cosolvent probably changed the character of the solvent system, penetrated the monomer-monomer interface and interacted with the interface residues, caused the break up of dimer. The unfolding reagents were found to partly unfold the NP simultaneously with dissociation of the dimer. Bromophenol blue binds to NP-I at low pH, but the solubility of NP-dye complex is too low to be studied extensively by solution-state NMR methods.
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Salihoglu, Omer. "AUTLER-TOWNES SPECTROSCOPY OF THE LITHIUM DIMER MOLECULE." Diss., Temple University Libraries, 2009. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/32174.
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Physics<br>Ph.D.<br>This thesis consists of two experimental applications of the Autler-Townes (AT) spectroscopy. In the first experiment, we have determined the electronic transition dipole moment for the 7Li2 A1Σu+ - X1Σg+ system experimentally by using a 4-level continuous wave extended Λ excitation scheme and compared our results with theoretical predictions. 7Li2 is a good test case for the accuracy of the AT splitting based technique to determine the transition dipole moment and its internuclear distance R dependence. The molecule has only 3 electrons per atom. The A1Σu+ - X1Σg+ potential energy curves were well known and thus, one could calculate accurate rovibrational wavefunctions for the simulations. In addition two different quantum mechanical models were available for the comparison: an all-electron valence bond self-consistent-field method and a pseudo-potential molecular orbital method. Our experimental results for the absolute magnitude of the transition dipole matrix elements for rovibronic transitions for different R-centroid values are in excellent agreement with ab initio theoretical calculations of the transition dipole moment. We believe that this technique will become an important method for accurate measurement of the absolute value and R-dependence of electronic transition dipole moments in molecules. The comparison with theory reinforces this view on the accuracy and universality of the AT method.
The focus of the second part of this thesis is on experimentally controlling the singlet-triplet character of the 7Li2 molecule by using an external coupling laser field. We have demonstrated experimentally for the first time that the frequency domain quantum control scheme developed by T.Kirova and F. C. Spano (Physical Review A, 71, 063816, 2005) can be used to control the mixing coefficients of a weakly perturbed pair of singlet and triplet rovibrational levels. The coupling field, when tuned to resonance with the rovibronic transition involving the singlet component, causes it to AT split, leading to enhanced mixing of the pair of levels, as predicted by theory.<br>Temple University--Theses
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Cartwright, Peter C. "Mass selective laser photoionisation spectroscopy of copper dimer." Thesis, University of Edinburgh, 1989. http://hdl.handle.net/1842/13333.
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Howlett, Alyson Cerny. "Role of molecular chaperones in G protein B5-Regulator of G protein signaling dimer assembly and G protein By dimer specificity." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/2065.
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In order for G protein signaling to occur, the G protein heterotrimer must be assembled from its nascent polypeptides. The most difficult step in this process is the formation of the Gβγ dimer from the free subunits since both are unstable in the absence of the other. Recent studies have shown that phosducin-like protein (PhLP1) works as a co-chaperone with the cytosolic chaperonin complex (CCT) to fold Gβ and mediate its interaction with Gγ. However, these studies did not address questions concerning the scope of PhLP1 and CCT-mediated Gβγ assembly, which are important questions given that there are four Gβs that form various dimers with 12 Gγs and a 5th Gβ that dimerizes with the four regulator of G protein signaling (RGS) proteins of the R7 family. The data presented in Chapter 2 shows that PhLP1 plays a vital role in the assembly of Gγ2 with all four Gβ1-4 subunits and in the assembly of Gβ2 with all twelve Gγ subunits, without affecting the specificity of the Gβγ interactions. The results of Chapter 3 show that Gβ5-RGS7 assembly is dependent on CCT and PhLP1, but the apparent mechanism is different from that of Gβγ. PhLP1 seems to stabilize the interaction of Gβ5 with CCT until Gβ5 is folded, after which it is released to allow Gβ5 to interact with RGS7. These findings point to a general role for PhLP1 in the assembly of all Gβγ combinations, and suggest a CCT-dependent mechanism for Gβ5-RGS7 assembly that utilizes the co-chaperone activity of PhLP1 in a unique way. Chapter 4 discusses PhLP2, a recently discovered essential protein, and member of the Pdc family that does not play a role in G protein signaling. Several studies have indicated that PhLP2 acts as a co-chaperone with CCT in the folding of actin, tubulin, and several cell cycle and pro-apoptotic proteins. In a proteomics screen for PhLP2A interacting partners, α-tubulin, 14-3-3, elongation factor 1α, and ribosomal protein L3 were found. Further proteomics studies indicated that PhLP2A is a phosphoprotein that is phosphorylated by CK2 at threonines 47 and 52.
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SANLI, AYDIN. "Transition Dipole Moment and Lifetime Study of Sodium Dimer and Lithium Dimer Electronic States via Autler-Townes and Resolved Fluorescence Spectroscopy." Diss., Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/444569.
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Physics<br>Ph.D.<br>This dissertation consists of three major studies. The first study, described in Chapter 3, focuses on the experimental work we carried out; experimental study of the electronic transition dipole moment matrix elements (TDMM) for the and electronic transitions of the sodium dimer molecule. Here we obtained the electronic transition dipole moments through Autler-Townes and resolved fluorescence spectroscopy and compared them to the theory. The second study, described in Chapter 4, is on sodium dimer ion-pair states. In this work, we calculated the radiative lifetimes and electronic transition dipole moments between Na2 ion-pair states ( , , , ) and state. This study was published in 2015. The last study, described in Chapter 5, is the total lifetime (bound-bound plus bound-free) and transition dipole moment calculations of the ion-pair electronic states, , of the lithium dimer molecule.<br>Temple University--Theses
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Bryggare, Anne, Emma Ekstrand, and Camilla Strömberg. "Campus – en dimmig verklighet : -." Thesis, Växjö University, School of Social Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-777.
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<p>Alcohol consumption and student life have been connected through many years. Many people establish their drinking habits during their years as a student and drinking habits among students are therefore an extremely important topic. The aim of this study was to examine the drinking habits of students at Växjö University. The study included 98 respondents who answered a survey concerning sex, age, living status, social relations, social desirability and drinking habits. The result indicated that male students consumed more alcohol than female students. There was also a strong connection between living status and alcohol consumption, with the students who lived on Campus consuming more alcohol than those living off Campus. Overall the result of the study was supported by previous research.</p>
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Christensen, Peter R. "Sulfur-bridged chromophore dimers." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58041.
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Controlling both energy and electron transfer processes is necessary for the performance of both light harvesting, and light emitting devices. The efficiency of both energy and electron transfer depends on the degree, or magnitude of the electronic coupling between molecules. In photosynthetic organisms such as plants and bacteria, long range energy transfer occurs between electronically coupled assemblies of chlorophyll molecules. The remarkable energy transfer efficiencies of light harvesting complexes employed in photosynthesis is intimately related to the orientation and intermolecular spacing between neighboring, identical chlorophyll molecules.
In an attempt to develop inexpensive artificial light harvesting systems and devices researchers have synthesized an impressive catalogue of organic small molecules and polymers to generate free electrons and holes from absorbed light energy. The most commonly employed design principle for synthesizing both small molecule and polymer light absorbing systems is to link together an electron deficient (acceptor) molecule to an electron rich (donor) molecule through a conjugated linker. The conjugated bridge between donor and acceptor units enables charge transfer states that offer band-gap tuning and more easily separated electron/hole pairs. However, exciton migration in these synthetic donor-acceptor systems only partially mimics the assemblies of light harvesting molecules found in nature. As a result, exciton migration is limited to very short distances in synthetic light harvesting organic molecules.
The following thesis presents a new approach for controlling the electronic coupling between neighboring identical molecules. By bridging two identical molecules about a sulfur atom, the electronic coupling between the two molecules can be increased by increasing the oxidation state of the “sulfur-bridge”. The broader implication of this work is that we may not need to use strongly coupled, conjugated donor-acceptor systems to achieve efficient charge separation and excitation migration. Instead, by using a non-conjugated linker, such as sulfur or perhaps even a saturated carbon atom, between molecules with identical electronic structure we may be able to enhance exciton transport in synthetic light harvesting assemblies.<br>Science, Faculty of<br>Chemistry, Department of<br>Graduate
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Dimler, Nick [Verfasser]. "Anlagepolitik öffentlicher Versorgungsrücklagen deutscher Bundesländer und kapitalmarktfundierte Strategieentwicklung. / Nick Dimler." Berlin : Duncker & Humblot GmbH, 2020. http://d-nb.info/1238496520/34.
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Mingione, Emanuele <1980>. "Rigorous results in Spin Glasses and Monomer-Dimer systems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6963/.
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In this work I reported recent results in the field of Statistical
Mechanics of Equilibrium, and in particular in Spin Glass models and Monomer Dimer models .
We start giving the mathematical background and the general formalism
for Spin (Disordered) Models with some of their applications to physical and mathematical problems.
Next we move on general aspects of
the theory of spin glasses, in particular to the Sherrington-Kirkpatrick model which is of fundamental interest for the
work. In Chapter 3, we introduce the Multi-species Sherrington-Kirkpatrick
model (MSK), we prove the existence of the thermodynamical limit and the
Guerra's Bound for the quenched pressure together with a detailed analysis of
the annealed and the replica symmetric regime. The result is a multidimensional
generalization of the Parisi's theory. Finally we brie
y illustrate the strategy of
the Panchenko's proof of the lower bound.
In Chapter 4 we discuss the Aizenmann-Contucci and the Ghirlanda-Guerra identities for a wide class of Spin Glass models. As an example of
application, we discuss the role of these identities in the proof of the lower bound.
In Chapter 5 we introduce the basic mathematical formalism of Monomer
Dimer models. We introduce a Gaussian representation of the partition function
that will be fundamental in the rest of the work.
In Chapter 6, we introduce an interacting Monomer-Dimer model.
Its exact solution is derived and a detailed study of its analytical properties and
related physical quantities is performed.
In Chapter 7, we introduce a quenched randomness in the
Monomer Dimer model
and show that, under suitable conditions the
pressure is a self averaging quantity. The main result is that, if we consider
randomness only in the monomer activity, the model is exactly solvable.
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Bieker, Helen [Verfasser]. "Dissociation dynamics of size-selected water dimer / Helen Bieker." Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2020. http://d-nb.info/1230561943/34.
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Bengtsson, Jonas. "POLYMERIZATION OF δ-VALERO LACTONE BY NOVEL CYCLODEXTRIN DIMER". Thesis, KTH, Skolan för kemivetenskap (CHE), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156213.
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På senare tid har forskning syftat till att främja miljövänligare teknik inom alla fält. Det visar sig inom materialframställningen som en önskan att använda material som inte är beroende av olja, inte tillverkade med tungmetaller samt nedbrytbara med en minimal miljöpåverkan. Detta har bland annat gett organiska katalysatorer en större plats inom forskningen. En av dessa är cyclodextrin, en cyklisk oligosackarid som har påvisats bilda makromolekylara komplex med andra molekyler. En aspekt av detta är att den kan hydrolysera polymerer då den bildar komplex med hydrofila molekyler och kan aktivera dessa genom vätebindning. Vilket Harada et. al. visade kunde utnyttjas for att polymerisera cycliska estrar. Detta examensarbete utforskar en del av det arbetet genom att dels verifiera polymerisationstekniken som ar en lösningsmedelsfri polymerisation dels försök till att framstalla en ny dimer av cyclodextrin som ska effektivt kunna polymerisera cycliska estrar mer effektivt an tidigare. Den nya dimern bygger på en thiourea-länk. Aven om polymerisation med vanlig cyclodextrin har visats fungera sa kan den föreslagna dimern inte polymerisera lika effektivt. Syntesen ar problematisk och annars åtråvarda egenskaper hos cyclodextrin, som makromolekylär komplexbildning, kan inhibera polymerisationen och tidigare uppreningssteg.
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Cvitaš, Marko Tomislav. "Interactions and collisions of cold molecules : lithium + lithium dimer." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/3667/.
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There is at present great interest in the properties of ultracold molecules. Molecules are created in traps in excited rovibrational states and any vibrational relaxation results in the trap loss. This thesis provides a theoretical study of interactions and collisions in the spin-polarized lithium -b lithium dimer system at ultralow energies. Potential energy surface of the electronic quartet ground state of lithium trimer is generated ab initio using the CCSD(T) method and represented by an IMLS/Shepard fit. Long-range nonadditive interactions are modelled using a symmetric global form with coefficients taken from a fit to the atom-molecule dispersion coefficients. The surface allows barrierless atom-exchange reactions. It has a global minimum of ≈ 4000 cm(^-1) at equilateral geometries with r(_e) = 3.1 Å. The nonadditive interactions are very strong near equilibrium. They increase the well depth by a factor of 4 and reduce the interatomic distance by ≈ 1 Å. Another surface of À symmetry in C(_s) meets the ground state surface at linear geometries at short range. Part of the seam, near D(_ooh) geometries, is in an energetically accessible region for cold collisions. Inside the seam, the lowest À surface correlates with (^4)II rather than (^4)Σ state. Inelastic and reactive collisions are investigated using a quantum mechanical coupled channel method in hyperspherical coordinates. Bosonic and fermionic systems in the spin-stretched states are considered. The inelastic rate coefficients from the rovibrationally excited states of dimer at ultralow collision energies are large, often above 10-(^-10) cm(^3)s(^-1) The elastic cross sections are ≈ 3 orders of magnitude lower at 1 nK. Atom-molecule mixtures, at the densities found in Bose-Einstein condensates of alkali metal atoms that were recently produced, would last only a fraction of a second. Classical Langevin model describes semi-quantitatively the energy dependence of inelastic cross sections above ≈ 50 mK. No systematic differences between the bosonic and fermionic systems were found. Sensitivity of the results on potential was investigated. Reactions in isotopic mixtures of lithium may be exothermic even from the molecular ground state. The reactive rate coefficients are 1 - 2 orders of magnitude smaller than those in systems involving an initially vibrationally excited dimer.
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Harte, Suzanne Marie. "Variable temperature diffraction studies of hydrogen bonded dimer systems." Thesis, University of Glasgow, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438927.
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Zhou, Ya Jun. "The effect of ageing on alkyl ketene dimer sizing." Thesis, University of Manchester, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337537.
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Lukman, Steven. "Singlet exciton fission in acene dimer and diradicaloid molecules." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/267735.
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This dissertation describes our study of a photophysical process that leads to ultrafast generation of triplet excitons following photoexcitation, singlet exciton fission, in three different acene dimers and diradicaloids. In pentacene and tetracene dimers, we investigate their mechanism of singlet fission. In a series of diradicaloids, we study the relation between molecular structure, diradical character and the suitability for singlet fission. In the first two chapters we explore singlet fission in pentacene dimer. We demonstrate fast and highly efficient intramolecular singlet fission, consisting of two covalently attached pentacene units. The singlet fission pathway is governed by the energy gap between singlet and charge-transfer states, which change dynamically with molecular geometry but are primarily set by the side group. The process exhibits a sensitivity to solvent polarity and competes with geometric relaxation in the singlet state, while subsequent triplet decay is strongly dependent on conformational freedom. The near orthogonal arrangement of the pentacene units is unlike any structure currently proposed for efficient singlet fission and points toward new molecular design rules. Furthermore, these results are the first to demonstrate the role of charge-transfer states in singlet fission and highlight the importance of solubilising groups to optimise excited-state photophysics. In the next chapter, we examine singlet fission in tetracene dimer, where singlet fission is energetically unfavourable. We demonstrate triplet yield as high as 190% can be achieved via fission from higher singlet excited states mediated by charge-transfer states. The outcomes of this study provide deeper insight into the role of hot singlet states in singlet fission and point toward less stringent molecular design rules. In the last chapter, we shift our focus on a new class of molecules, diradicaloid molecules. We explore a family of zethrene molecules, with tuneable diradical character, and demonstrate their general ability to undergo rapid singlet fission via spin-entangled and emissive triplet-pair state TT. A wide range of zethrene molecules are found to be suitable for singlet fission, with additional benefits of high absorption coefficients and photo-/chemical stability.
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Qu, Xinmei. "Mercury dimer spectroscopy and an Einstein-Podolsky-Rosen experiment." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3041.
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Bradley, Patricia Marie. "Photochemistry and photophysical properties of metal-metal dimer complexes /." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486461246814571.
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Dove, Chris Hays. "Models for the formation of 5.8S ribosomal RNA dimer." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/50088.
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Ribosomal 5.85 RNA is a component of the large (605) ribosomal subunit in eucaryotes. Studies of 5.85 rRNA in solution have shown that under certain conditions, including standard isolation procedures, the molecule complexes with itself to form dimers and higher multimers. Two models have been proposed in the literature to explain the intermolecular interactions responsible for 5.85 rRNA dimer formation. The terminal interaction model of Sitz et al. (Biochem. 17, 5811-5815, 1978) proposes that the dimer forms through base-pairing of the 5' and 3' terminal sequences of two 5.85 rRNA molecules. Pavlakis et al. (Nucl. Acids Res. 7, 2213-2237, 1978) showed that 5.85 rRNA lacking the 3' terminal region was capable of forming dimer. They proposed an alternative model for 5.85 rRNA dimer formation in which an entirely different part of the molecule interacts to form a double-stranded palindrome.
In this study, enzymatic probing techniques and stability measurements (both experimental and theoretical) were used to determine which model most accurately describes the intermolecular interactions of the 5.88 rRNA dimer. The methods used for determining stability were not able to discriminate between the models for 5.88 rRNA dimer formation. Results from the structural probing studies, however, support the terminal interaction model and indicate that the palindrome interaction does not occur in 5.88 rRNA dimer formed from the intact molecule.<br>Master of Science<br>incomplete_metadata
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Stucky, Eric. "An Exposition of Kasteleyn's Solution of the Dimer Model." Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/hmc_theses/89.
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In 1961, P. W. Kasteleyn provided a baffling-looking solution to an apparently simple tiling problem: how many ways are there to tile a rectangular region with dominos? We examine his proof, simplifying and clarifying it into this nearly self-contained work.
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Baker, John C. III. "Application of the Fisher Dimer Model to DNA Condensation." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4791.
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This paper considers the statistical mechanics occupation of the edge of a single helix of DNA by simple polymers. Using Fisher's exact closed form solution for dimers on a two-dimensional lattice, a one-dimensional lattice is created mathematically that is occupied by dimers, monomers, and holes. The free energy, entropy, average occupation, and total charge on the lattice are found through the usual statistical methods. The results demonstrate the charge inversion required for a DNA helix to undergo DNA condensation.