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Dissertations / Theses on the topic 'Raman spektrometry'

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1

Indra, Zdeněk. "Ramanova spektroskopie pro výuku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442434.

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This thesis examines the principle of the Raman phenomenon and the function of the Raman spectrometer in order to build a low-cost Raman spectrometer assembly for school laboratory teaching. The thesis lists the important parts of the device and describes their key features. Subsequently, the selection of each component is discussed and a basic experiment is performed to verify the principle of this spectrometer. In the final part, a low-cost Raman spectrometer is constructed and tested thanks to the knowledge gained.
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2

Eberhard, Luc. "Raman-Spektrometer für die Gasanalyse bei beatmeten Patienten /." [S.l.] : [s.n.], 1998. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12562.

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3

Nalpantidis, Konstantinos. "Qualitative und quantitative Bestimmung von Russaerosolen und anderen Feinstäuben auf Basis der Raman-Spektroskopie." Berlin Logos-Verl, 2009. http://d-nb.info/996812814/04.

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4

Mičánková, Helena. "Možnosti využití Ramanovy spektrometrie jednotkami Hasičského záchranného sboru." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2011. http://www.nusl.cz/ntk/nusl-216683.

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Thesis is focused on the application of Raman’s spectometer Ahura First Defender in cooperation with Fire Department. Theoretical part describes principles and development of Raman spectrometry and possibilities of its application. Practical part focus on identification of unknow substances in case studies and interpretation of the results. Final part of thesis evaluates contribution of Raman spectrometry for fast indentification of unknow compounds for Fire Rescue Brigade in the Czech Republic.
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5

Kouřil, Jan. "Využití metod laserové spektroskopie k diagnostice biologických vzorků: kombinace Ramanovské spektroskopie a Spektrometrie laserem indukovaného mikroplazmatu (LIBS)." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230235.

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This diploma thesis deals with two spectroscopic methods - laser induced breakdown spectroscopy and Raman spectroscopy. These methods were used for analysis of alga Trachydiscus minutus, which was cultivated in copper sulfate solutions of various concentrations. First part of this thesis is dedicated to physics and measurements of laser induced breakdown spectroscopy, second part deals with Raman spectroscopy.
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6

Sidorova, Mariia. "Timing Jitter and Electron-Phonon Interaction in Superconducting Nanowire Single-Photon Detectors (SNSPDs)." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/22296.

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Die vorliegende Doktorarbeit beschäftigt sich mit der experimentellen Studie zweier miteinander verbundener Phänomene: Dem intrinsischen Timing-Jitter in einem supraleitendenden Nanodraht-Einzelphotonen-Detektor (SNSPD) und der Relaxation der Elektronenenergie in supraleitenden Filmen. Supraleitende Nanodrähte auf einem dielektrischen Substrat als mikroskopische Grundbausteine jeglicher SNSPDs stellen sowohl für theoretische als auch für experimentelle Studien komplexe Objekte dar. Die Komplexität ergibt sich aus der Tatsache, dass SNSPDs in der Praxis stark ungeordnete und ultradünne supralei
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7

Košek, Filip. "Využití přenosných Ramanovských spektrometrů pro detekci sulfátů: potenciální aplikace v exobiologii." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-341330.

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The detection of mineral phases under in situ conditions has become a primary but sometimes also challenging task in many fields of geoscience. Raman spectroscopy has been used as a powerful tool for the identification of various minerals and organic compounds. The advantages and the relative simplicity made this method a promising choice in the future planetary exploration missions to Mars. The deposits of aqueous minerals including sulfates have been found on the Martian surface. With the development of miniaturized handheld spectrometers there is a need for evaluation of Raman spectroscopy
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Minaříková, Laura. "Identifikace drahých kamenů pomocí přenosných Ramanovských spektrometrů: výhody a omezení měření in situ." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-353852.

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This thesis investigates the potential and limits of portable Raman spectrometers for their application in situ in the environment of museum collections. The data sets were obtained at the two locations. The first measurement took place in the Jewish Museum in Prague. Here we have studied stones from a silver Torah shield from the first half of the nineteen century. This shield is decorated with a set of precious and semi-precious stones and glass imitations. The shield originates from Poland and has been studied using two portable Raman spectrometers (785 nm and 532 and excitations). The seco
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9

Kdýr, Šimon. "Určení strukturního stavu uhlíkaté hmoty metasedimentárních hornin pomocí Ramanovy spektrometrie." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-368995.

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Metamorphic processes can transform the organic matter in sedimentary rocks into structurally organized carbonaceous matter, in ideal conditions to graphite. In the centre of West Alpine arch, the metasedimentary rocks are rich in dispersed carbonaceous matter and were used in this thesis to specify the thermal range of metamorphism based on the structural state. Previous studies have used mainly the Raman spectrometers to determine the structural state of carbonaceous matter. Unfortunately this method doesn't allow in-situ analyses which, in addition to Earth studies, can be essential for stu
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10

Košek, Filip. "Aplikace Ramanovy spektrometrie pro detekci sulfátů hořících uhelných hald." Doctoral thesis, 2018. http://www.nusl.cz/ntk/nusl-388851.

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This Ph.D. thesis was focused on the application of Raman spectroscopy as the main analytical method for the characterization of neo-formed minerals, notably sulfates, from burning coal waste dumps. This environment associated with subsurface fires gives rise to a variety of uncommon and rare minerals. The specific features of these minerals (metastability, hygroscopy, mixed aggregates) causes that the mineralogical investigation is a challenging task using traditional laboratory-based techniques. Advantages such as the non-destructive nature, the sensitivity to the changes in the hydration de
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11

Novotná, Julie. "Ramanova spektrometrie karotenoidů vybraných mikroorganismů." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-341376.

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In this thesis Raman spectroscopy is evaluated as a tool of identification and discrimination of carotenoids from microbial biomass. Microorganisms, halophilic or nonhalophilic, belong to Cyanobacteria, Proteobacteria, Chlorophyta, Rhodophyta and to others. Biomass was cultiveted under laboratory conditions and yielded varied colours. Raman spectra were recorded succesfully from lyophilized biomass by excitation wavelenth 514.5 nm (dispersive Raman microspectrometr) and 1064 nm (FT Raman spectrometer). Results were compared with Raman spectroscopic data from pigment extracts. Spectra of carote
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12

Šimon, Jan. "Použitelnost Ramanových spektrometrů (excitace 785 nm) pro deteckci tmavých minerálů." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-322085.

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Summary: Raman spectroscopy is a widely used method in geoscience fields. Using a portable Raman spectrometer is possible to identify different materials, Raman spectrometer will participate in the survey the Martian surface. Its use is widely applied in mineralogy. There was measured a set of dark, green and some bright minerals of different mineralogical system groups that have been assessed the applicability of the chosen detector excitation at 785 nm mainly off-road equipment. The obtained spectra were measured off-road equipment ahura and delta nu at excitation 785 nm and laboratory equip
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13

Šimon, Jan. "Použitelnost Ramanových spektrometrů (excitace 785 nm) pro detekci tmavých minerálů." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-324445.

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Summary: Raman spectroscopy is a widely used method in geoscience fields. Using a portable Raman spectrometer is possible to identify different materials, Raman spectrometer will participate in the survey the Martian surface. Its use is widely applied in mineralogy. There was measured a set of dark, green and some bright minerals of different mineralogical system groups that have been assessed the applicability of the chosen detector excitation at 785 nm mainly off-road equipment. The obtained spectra were measured off-road equipment ahura at excitation 785 nm and laboratory equipment InVia Re
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14

Schneedörfler, Rudolf. "Detekce dusíkatých biomarkerů přenosným Ramanovským spektrometrem - použití v oblasti exobiologie." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-322103.

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This thesis was focused on testing of portable Raman spectrometer for detection of components in model mixtures of five different biomolecules in a gypsum matrix. The main goal was to test the ability of the instrument to detect amino acids glycine, L-proline, L-alanine and nucleobase thymine in samples containing UV protective pigment -carotene. Other measurements were taken using the laboratory inVia Reflex instrument to comapare the results gained from the portable Raman spectrometer. Both instruments were equipped with the excitation laser working at 785 nm wavelength. It was found out tha
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15

Kovács, Michal. "Ramanova spektrometrie pigmentů sinic, řas a lišejníků v astrobiologickém kontextu." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-345303.

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This work deals with the possibility of Raman spectroscopical identification of selected biomarkers of extremophile species. It focuses mainly on selected cyanobacteria, algae and lichens with an emphasis on the ability to detect carotenoids. These pigments exhibit three characteristic bands of Raman spectra which represent stretching vibrations C=C; C-C and bending vibration C-CH3 in molecules of carotenoids. Raman spectra were measured not only by laboratory microspectrometers (λ - 514 nm and 532 nm), but also by portable and handheld spectrometers (λ - 532 nm, 785 nm and 700 - 1100 nm). In
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16

HRDINA, Richard. "Identifikace látek v reálných vzorcích pomocí přenosného Ramanova spektrometru." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-119485.

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The title of the thesis: The Identification of Substances in Real Samples Using Portable Raman Spectrometer The portable Raman spectrometer Ahura First Defender is a device designated for identifying unrecognized solid and liquid substances. The aim of this diploma thesis was to test the efficiency of the portable Raman spectrometer First Defender and to draw up a draft of the methodology for its manipulation. The objects of the investigation were the accuracy of results and collection of findings coming out of measuring tests using the device mentioned above. The introduction part briefly des
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17

Zoul, David. "Charakterizace vibračních módů složek nukleových kyselin pomocí variabilní proton-deuteriové výměny." Master's thesis, 2010. http://www.nusl.cz/ntk/nusl-297433.

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Although the nucleon acid oscillatory spectra have been studied for a long period of time, many of oscillating modes have not been properly explained regarding their geometric sensitivity and weak binding. One of the possibilities how to acquire experimental data for interpretation of theese modes is to confront oscillating spectra of isotopes. The simplest is proton - deutron exchange. When molecules dissolve in heavy water they rapidly exchange the heteroatoms, but this is simultaneous for more stages, which leads to dynamic equilibrium state among various isotope forms. Statistic analysis o
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18

Osterrothová, Kateřina. "Využití Ramanovy spektroskopie pro identifikaci organických inkluzí minerálů pro účely exobiologie." Doctoral thesis, 2011. http://www.nusl.cz/ntk/nusl-379605.

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The multidisciplinary field of astrobiology has grown rapidly in recent years. The major goals of research in the field have been the search for habitable environments both within and outside our solar system, the search for evidence of prebiotic chemistry and life on Mars and other bodies in our solar system, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in space. NASA and ESA are heavily focused on a number of upcoming exploratory missions (e.g., the Mars Scie
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19

Řáhová, Jaroslava. "Využití Ramanovského mapování pro studium uhlíkaté hmoty hornin." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-368998.

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Raman spectroscopy is an irreplaceable method for chemical and structural characterization of many substances. This is especially true for carbonaceous matter. It is non-destructive and capable of determining the crystallinity of the studied carbonaceous phase, and subsequently, with the aid of empirical relations, also the temperature of formation of the rock under study. Until very recently, the most of the Raman spectroscopy measurements was conducted only single point-wise on grains chosen on purpose, e.g., in an optical microscope. Alongside with the evolution and affordability of the Ram
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