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Dissertations / Theses on the topic 'Compound Technique'

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1

Ramanathan, Sivakumar. "Optical and electrical properties of compound and transition metal doped compound semiconductor nanowires." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1667.

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Nanotechnology is the science and engineering of creating functional materials by precise control of matter at nanometer (nm) length scale and exploring novel properties at that scale. It is vital to understand the quantum mechanical phenomena manifested at nanometer scale dimensions since that will enable us to precisely engineer quantum mechanical properties to realize novel device functionalities. This dissertation investigates optical and electronic properties of compound and transition metal doped compound semiconductor nanowires with a view to exploiting them for a wide range of applicat
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2

Andrawis, Alfred S. "A new compound modulation technique for multi-channel analog video transmission on fiber." Diss., Virginia Tech, 1991. http://hdl.handle.net/10919/39877.

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Present analog optical fiber multi-channel video transmission systems are very sensitive to laser nonlinearities and are consequently limited in the optical modulation depth (OMD) that may be used. This, in turn limits the power budget achievable, signal-to-noise ratio, and the channel capacity. In this dissertation a new analog transmission technique for multi-channel TV transmission on fiber USIng frequency modulation/pulse amplitude modulation/time division multiplexing (FM/TDM) is described and compared with present digital and analog systems. Parameters for the proposed system are select
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3

Houbloss, Samir. "Detection thermique de l'absorption optique : developpement de la technique, informatisation, etudes d'elements 3d dans des materiaux iii-v." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21078.

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Developpement d'une technique nouvelle de detection de l'absorption optique, tres sensible aux basses temperatures. Construction d'un spectrometre equipe de differents cellules et informatise. L'appareillage a permis la detection des bandes et des raies a zero phonon associees a la presence du chrome, du vanadium et du titane dans les materiaux iii-v
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4

Souptel, Dmitri. "Crystal growth and perfection of selected intermetallic and oxide compounds." Doctoral thesis, [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=973879408.

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5

Souptel, Dmitri. "Crystal growth and perfection of selected intermetallic and oxide compounds." Doctoral thesis, Technische Universität Dresden, 2004. https://tud.qucosa.de/id/qucosa%3A24461.

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The aim of the present work is to clarify the interplay between the complex technological chain of crystal preparation, chemical and structural perfection of grown crystals of intermetallic compounds and oxides and their physical properties. This technological chain includes detailed studies of unknown or insufficiently known phase diagrams, their correlation with growth conditions and optimisation of process parameters for obtaining single crystals with high chemical and physical perfection. The measurements of the physical properties of the grown crystals such as superconductivity, thermoele
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6

Lakhdari, Hacène. "Etude par technique spectroscopique de capacite transitoire des defauts a l'interface semiconducteur-isolant." Paris 6, 1988. http://www.theses.fr/1988PA066341.

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Explication du comportement inhabituel de certaines structures mos en dlts (non-saturation du spectre dlts pour un remplissage total de la densite d'etats d'interface) par une interaction par effet tunnel entre les porteurs libres du semiconducteur et les defauts des premieres couches d'oxyde (etats lents). Etude de la degradation des interfaces si-sio::(2) sous injection d'electrons chauds en comparant la cinetique de creation des etats lents et rapides. Etude des defauts induits par plasma ionique reactif
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7

Maneglia, Yves. "Étude en profondeur de l'interface si-siO2 par la technique du pompage de charges." Grenoble INPG, 1998. http://www.theses.fr/1998INPG0169.

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Ce memoire a pour but d'apporter une contribution dans le domaine de la caracterisation electrique de l'interface silicium-oxyde. Les deux premiers chapitres sont consacres a des rappels sur le systeme si-sio#2 et a la presentation des methodes de caracterisation electriques qui ont permis d'apporter des informations sur les etats dits lents, etats situes dans l'oxyde au voisinage de l'interface et communicant avec le semiconducteur par effet tunnel. Dans le troisieme chapitre un modele ayant pour but d'extraire a partir de mesures de pompage de charges, le profil en profondeur des defauts de
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8

Schubert, Matthias. "Advanced Data Mining Techniques for Compound Objects." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-27981.

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9

Vona, Marsette Arthur 1977. "Metrology techniques for compound rotary-linear motion." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86760.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (p. 143-147).<br>by Marsette Arthur Vona, III.<br>S.M.
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10

VASSALLO, OSCAR. "Characterization of human topoisomerase IB N-terminal domain and effect of cEPA on the activity of human and L. Donovani Topoisomerase IB." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/202337.

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Le DNA topoisomerasi sono enzimi che catalizzano il rilassamento del DNA durante importanti processi che includono la replicazione del DNA, la trascrizione, la ricombinazione e la segregazione cromosomica. In questo progetto ho analizzato le proprietà strutturali del dominio N-terminale dello enzima umano e in secondo momento ho comparato l’effetto dell’Acido eicosapentaenoico coniugato (cEPA) sull’attività della topoisomerasi umana e di quella appartenente alla L. donovani. La struttura tridimensionale dell’enzima umano è stata risolta in assenza del dominio N-terminale e quindi le sue caratt
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11

Ouchefoun, Moussa. "Nouvelles applications analytiques des ions tribromures : cas des petroles." Paris 6, 1988. http://www.theses.fr/1988PA066454.

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Elaboration d'une nouvelle technique qui associe un agent original de bromation (le tribomure de tetrabutylammonium) a un dosage voltamperometrique. Cette nouvelle technique permet non seulement de determiner un indice de brome dans le cas des fractions lourdes des petroles, mais encore pour la premiere fois d'effectuer une discremination entre reaction d'addition et reaction de substitution
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12

Hamomd, Osama H. I. "Compound fault diagnosis of centrifugal pumps using vibration analysis techniques." Thesis, University of Huddersfield, 2018. http://eprints.hud.ac.uk/id/eprint/34782/.

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Centrifugal pumps are widely used in many different industrial processes, such as power generation stations, chemical processing plants, and petroleum industries. The problem of failures in centrifugal pumps is a large concern due to its significant influence on such critical industries. Particularly, as the core, parts of a pump, bearings and the impellers are subject to different corrosions and their faults can cause major degradation of pump performances and lead to the breakdown of production. Therefore, an early detection of these types of faults would provide information to take timely p
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13

Whiteley, Clinton E. "Advanced crystal growth techniques with III-V boron compound semiconductors." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/8110.

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Doctor of Philosophy<br>Department of Chemical Engineering<br>James H. Edgar<br>Semiconducting icosahedral boron arsenide, B[subscript]12As[subscript]2, is an excellent candidate for neutron detectors and radioisotope batteries, for which high quality single crystals are required. Thus, the present study was undertaken to grow B[subscript]12As[subscript]2 crystals by precipitation from metal solutions (nickel) saturated with elemental boron and arsenic in a sealed quartz ampoule. B[subscript]12As[subscript]2 crystals of 8-10 mm were produced when a homogeneous mixture of the three elements wa
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14

Dallin, Paul Howard. "Novel spectroscopic techniques applied to metal cluster compounds." Thesis, University of East Anglia, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.291953.

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15

Deo, M. G. "Studies in biologically active compounds using chromatography techniques." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1986. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/3268.

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16

Ponce, Audaldo A. "Preparation of nanoparticles and organometallic compounds via the SMAD technique /." Search for this dissertation online, 2002. http://wwwlib.umi.com/cr/ksu/main.

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17

Abo-Qudais, Saad A. "Evaluation of pavement joint sealants : a new testing technique /." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-11102009-020029/.

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18

Lubicki, Piotr R. "Removal of organic compounds from aqueous solutions by electron radiation technique." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0008/NQ30623.pdf.

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19

Freire, Roberto 1960. "A technique for simulating composed SAN-based reward models." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/278460.

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Stochastic activity networks (SANs) have been used in the modeling of computer systems because of their suitability in representing distributed systems. SANs may be solved by analysis or by simulation. When simulation is used, future events list management is very time consuming, as with other simulation techniques. New methods that take advantage of the SAN model structure are presented which significantly reduce the cost of future events list management. Multiple future events lists are used to reduce operations required upon each state change.
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20

Bairstow, Andrew. "An investigation of compound semiconductors using low energy RBS and PIXE techniques." Thesis, University of Hull, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280805.

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21

Fletcher, Daniel Allen. "Structural studies of aromatic C-Nitroso compounds using NMR techniques." Thesis, University of Exeter, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307275.

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22

Kaati, Lisa. "Reduction Techniques for Finite (Tree) Automata." Doctoral thesis, Uppsala universitet, Avdelningen för datorteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9330.

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Finite automata appear in almost every branch of computer science, for example in model checking, in natural language processing and in database theory. In many applications where finite automata occur, it is highly desirable to deal with automata that are as small as possible, in order to save memory as well as excecution time. Deterministic finite automata (DFAs) can be minimized efficiently, i.e., a DFA can be converted to an equivalent DFA that has a minimal number of states. This is not the case for non-deterministic finite automata (NFAs). To minimize an NFA we need to compute the corres
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23

Lam, Ka Man. "Determination of airborne carbonyl compounds by a thermal desorption GC/MS method : development and application of a vapour coating technique /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202005%20LAM.

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24

Lorenzo, Susan Chemistry Faculty of Science UNSW. "The supramolecular chemistry of cucurbituril molecules." Awarded by:University of New South Wales. School of Chemistry, 2006. http://handle.unsw.edu.au/1959.4/26990.

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The set of molecules cucurbit[n]uril (Qn) are macrocycles composed of n glycoluril monomers linked by methylene groups. These molecules have two oxygen-ringed portals of a diameter slightly smaller than their internal cavity diameter. This thesis describes syntheses, crystallisations, crystal structure determinations, crystal packing analyses and force field calculations exploring the supramolecular chemistry of Qn molecules and their derivatives. Qn acts as a host for guest molecules and at the outset of this project no metal containing molecule had been encapsulated in a Qn molecule. One aim
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25

Musa, Mazlina. "Ionothermal synthesis of metal aluminophosphates." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/4483.

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The aim of this thesis was to synthesise CoAPO-34 and FeAPO-34 using ionothermal synthesis in the presence of organic amines. Using this method provides an alternative route to prepare such materials under low pressure instead of the higher pressure associated with hydrothermal or solvothermal synthesis. Both materials have chabazite (CHA) topology and they are known to act as catalysts. CoAPO-34 was ionothermally prepared using 1-ethyl-3-methylimidazolium bromide (EMIMBr) in presence of 1, 6-hexadiamine (HDA). This study has found that when the synthesis was carried out without HDA, AlPO-11 w
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26

Ellington, Donald H. (Donald Howard). "Solution Studies of ⁶Li Enriched Organolithium Compounds Using New NMR Techniques." Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc935667/.

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With the values of 6Li T1 measured and the literature values of J(13C-6Li) for these compounds, three new 13C NMR techniques are developed for the analysis of organolithium compounds. Modifications to the spectrometer are discussed, as well as calibrations of the 6Li decoupler channel needed to set up these new experiments. The theoretical development of each technique is presented, as well as data from their verification, using organolithium compounds of known structure. Once qualified, the new experimental techniques are used to analyze a series of alkyllithium / lithium alkoxide mixed aggre
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27

Wittrock, Folkard. "The retrieval of oxygenated volatile organic compounds by remote sensing techniques." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=981664660.

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28

Kim, Eun Hye. "Selected Organ Works of Joseph Ahrens: A Stylistic Analysis of Freely Composed Works and Serial Compositions." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1377871051.

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29

Machado, Ana Isabel de Oliveira. "Removal of pharmaceutical active compounds by constructed wetland systems - a sustainable phytoremediation technique?" Doctoral thesis, ISA, 2020. http://hdl.handle.net/10400.5/21195.

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Doutoramento em Restauro e Gestão Fluviais - Instituto Superior de Agronomia. Universidade de Lisboa<br>Emergent pollutants such as pharmaceutical active compounds (PhACs) have gained attention in the recent years since they can pose a threat to both river ecosystems and human health. The wide variety of pollutants in the market nowadays has overburdened the current wastewater treatment plants (WWTPs). Moreover, due to the increasingly growing society ecological awareness, environment friendly technologies have been more recently explored for wastewater treatment. Constructed wetlands (CWs) sy
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30

Anger, Sabrina. "Potential and challenges of compound semiconductor characterization by application of non-contacting characterization techniques." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2016. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-201487.

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Trotz der im Vergleich zu Silizium überragenden elektronischen Eigenschaften von Verbindungshalbleitern, ist die Leistung der daraus gefertigten elektrischen Bauelemente aufgrund der vorhandenen, die elektronischen Materialeigenschaften beeinflussenden Defekte nach wie vor begrenzt. Die vorliegende Arbeit trägt dazu bei, das bestehende ökonomische Interesse an einem besseren Verständnis der die Bauelementeleistung limitierenden Defekte zu befriedigen, indem sie die Auswirkungen dieser Defekte auf die elektronischen und optischen Materialeigenschaften von Indiumphosphid (InP) und Siliziumkarbid
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31

Beattie, I. G. "Mass spectral techniques for the analysis of compounds connected with food safety." Thesis, Bucks New University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374817.

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32

Tatton, Andrew S. "Development of solid-state NMR techniques for the characterisation of pharmaceutical compounds." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/51660/.

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Structural characterisation in the solid state is an important step in understanding the physical and chemical properties of a material. In pharmaceuticals, an active pharmaceutical ingredient (API) may be medicinally favourable, but have undesirable physical properties, such as poor solubility, that potentially limit further development. Solid delivery forms, such as pharmaceutical salts, cocrystals and solid amorphous dispersions, potentially offer improvements in physical properties, whilst maintaining favourable medicinal characteristics. Solid-state NMR is an extremely sensitive probe of
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33

Ball, Daniel. "Development of novel hyperpolarized magnetic resonance techniques and compounds for perfused organs." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:21f6b661-cf21-46e7-9c7a-7c5d9ccf2b28.

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Hyperpolarization via the Dynamic Nuclear Polarization (DNP) technique has revolutionized our ability to study metabolic changes in real time. The aim of this thesis was to build upon previous work centered around the use of DNP within the isolated perfused rat heart, a well established model system for the study of cardiac metabolism, to enhance the information that can be obtained through the combination of DNP with perfused organs. Initially this was done by using the widely studied DNP probe, [1-<sup>13</sup>C]pyruvate, to generate images of metabolism within the isolated perfused rat hear
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34

Pasini, Federica <1982&gt. "Bioactive and toxic compounds in different foodstuffs: analytical techniques and sensory analysis." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3554/1/Pasini_Federica_Tesi.pdf.

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Foods that provide medical and health benefits or have a role in disease risk prevention are termed functional foods. The functionality of functional foods is derived from bioactive compounds that are extranutritional constituents present in small quantities in food. Bioactive components include a range of chemical compounds with varying structures such as carotenoids, flavonoids, plant sterols, omega-3 fatty acids (n-3), allyl and diallyl sulfides, indoles (benzopyrroles), and phenolic acids. The increasing consumer interest in natural bioactive compounds has brought about a rise in demand fo
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35

Pasini, Federica <1982&gt. "Bioactive and toxic compounds in different foodstuffs: analytical techniques and sensory analysis." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3554/.

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Foods that provide medical and health benefits or have a role in disease risk prevention are termed functional foods. The functionality of functional foods is derived from bioactive compounds that are extranutritional constituents present in small quantities in food. Bioactive components include a range of chemical compounds with varying structures such as carotenoids, flavonoids, plant sterols, omega-3 fatty acids (n-3), allyl and diallyl sulfides, indoles (benzopyrroles), and phenolic acids. The increasing consumer interest in natural bioactive compounds has brought about a rise in demand fo
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36

SEGHETTI, CHIARA. "Monitoring of Biogenic Volatile organic Compounds (BVOCs) in Air with Analytical Techniques." Doctoral thesis, Università degli Studi di Camerino, 2019. http://hdl.handle.net/11581/429077.

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Biogenic volatile organic compounds (BVOCs), are a heterogeneous group of molecules with a wide range of functions useful for plants and, consequently, for the whole ecosystem and the environment. The general aim of this dissertation is the study and monitoring of BVOC emissions in different place and time and the correlation between emissions and climate changing, atmospheric reaction and behaviour of birds. This dissertation concerns 4 main chapters in which we discuss 4 different aspects of the study of BVOC emissions. The first one regards a rapidly and inexpensive analytical method that i
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37

Cichocka, Danuta. "Assessment of microbial transformation of chlorinated ethenes by compound specific isotope analysis and cultivation techniques /." Leipzig : UFZ, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=017048800&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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38

Wu, Zucheng. "Development of acillary techniques for chromatographic analysis of trace organic pollutants in environmental samples /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19667188.

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39

Titmuss, Katherine Louise. "Application of advanced high resolution transmission electron microscopy techniques to complex inorganic compounds." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615781.

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40

Schwienheer, Christoph Heinrich [Verfasser]. "Advances in centrifugal purification techniques for separating (bio-) chemical compounds / Christoph Heinrich Schwienheer." München : Verlag Dr. Hut, 2016. http://d-nb.info/1122524749/34.

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41

Cole, Jacqueline M. "Structural studies of organic and organometallic compounds using X-ray and neutron techniques." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/5031/.

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This thesis is sub-divided into two parts. Part (i) is entitled 'Structure / Property Relationships in Non-linear Optical Materials' (chapters 1-8) whilst part (ii) is entitled 'Structural Studies of imido, (bis)imido and aryloxide group VA and VIA transition metal complexes' (chapters 9-10).Chapters 1, 2 and 3 provide an introduction to non-linear optics, X-ray and neutron experimental techniques used in this thesis and charge density studies respectively. Chapters 4 to 8 describe the investigations of the part (i) topic. These include bond length alternation studies on a series of tetracyano
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42

Moore, William N. "Supercritical fluid extraction as a sample preparation technique for the isolation of polar pharmaceutical compounds." Diss., This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-10052007-143203/.

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Lawson, Joseph L. "On the determination of the elastic properties of geopolymeric materials using non-destructive ultrasonic techniques /." Online version of thesis, 2008. http://hdl.handle.net/1850/7356.

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44

Hojati, Ashkhan. "Pharmacologic profiling of novel compounds via fluorometric analyses of monoamine transporter responses." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5983.

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In humans and other organisms, monoaminergic systems are crucial in neuronal function and behavior. The monoamine transporters (MATs), which can be found on the presynaptic plasma membrane of neurons in the central nervous system (CNS), are crucial in the regulation of neurotransmitter concentration in the synaptic cleft. As the duration and concentration of neurotransmitters in the cleft affect further downstream signaling responses, these proteins are important targets for both understanding neuronal physiology and compounds of interest. Multiple theories exist proponing the contribution of
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45

吳祖成 and Zucheng Wu. "Development of acillary techniques for chromatographic analysis of trace organic pollutants in environmental samples." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31236327.

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46

Rossi, Giacomo <1990&gt. "Highlighting Charge Transfer Phenomena in Photo-catalytic Compounds Using Optical and X-ray Techniques." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amsdottorato.unibo.it/8398/1/Tesi_Dottorato_Giacomo_Rossi_versione_depositata.pdf.

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The best way to obtain significant results in science is to combine sophisticated experimental techniques and innovative samples. The aim of this thesis is to report an operative method to be used for the characterization of charge transfer phenomena in photo-active samples. This kind of analysis is extremely important for the doped TiO2 samples analyzed. These doped systems are promising photo-catalysts for hydrogen production from water splitting and pollutants degradation. Doping is an efficient method to decrease the energy needed to trigger the excitation of the photo-catalyst, otherwise
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47

Lauro, Gianluigi. "New techniques of molecular modelling and structural chemistry for the development of bioactive compounds." Doctoral thesis, Universita degli studi di Salerno, 2013. http://hdl.handle.net/10556/986.

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2011 - 2012<br>Computational chemistry represents today a valid and fast tool for the research of new compounds with potential biological activity. The analysis of ligand-macromolecule interactions and the evaluation of possible “binding modes” have a crucial role for the design and the development of new and more powerful drugs. In silico Virtual Screening campaigns of large libraries compounds (fragments or drug-like) on a specific target allow the selection of promising compounds, leading the identification of new scaffolds. The accurate analysis and the comparison of different bioactive co
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48

Asian, Jelita, and jelitayang@gmail com. "Effective Techniques for Indonesian Text Retrieval." RMIT University. Computer Science and Information Technology, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080110.084651.

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The Web is a vast repository of data, and information on almost any subject can be found with the aid of search engines. Although the Web is international, the majority of research on finding of information has a focus on languages such as English and Chinese. In this thesis, we investigate information retrieval techniques for Indonesian. Although Indonesia is the fourth most populous country in the world, little attention has been given to search of Indonesian documents. Stemming is the process of reducing morphological variants of a word to a common stem form. Previous research has show
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49

Schuck, Virna Josiane Aurelio. "Use of microdialysis as a tool to determine tissue distribution of lipophilic and high molecular weight compounds." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0008003.

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Thesis (Ph.D.)--University of Florida, 2004.<br>Typescript. Title from title page of source document. Document formatted into pages; contains 139 pages. Includes Vita. Includes bibliographical references.
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50

Elwell, S. "A study of europium compounds in unusual oxidation states by Mossbauer spectroscopy and other techniques." Thesis, University of Kent, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235331.

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