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Добірка наукової літератури з теми "Tellurio"

Автор: Grafiati
Опубліковано: 11 березня 2023

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Статті в журналах з теми "Tellurio"

1

Aleksiichuk, О. Yu, V. S. Tkachishin, V. Ye Kondratyuk, О. M. Arustamyan, and I. V. Dumka. "Poisoning from tellurium and its toxic compounds in industry." EMERGENCY MEDICINE 17, no. 6 (January 10, 2022): 6–11. http://dx.doi.org/10.22141/2224-0586.17.6.2021.242321.

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Tellurium has been primarily used in the steel industry for the past 40 years. This material is used for the manufacture of solar cells, lasers, photoresistors, and counters of radioactive radiation. Cadmium tellurium batteries are the second most popular solar technology. Another important application of tellurium is in the manufacture of thermoelectric generators. In the metallurgical industry, tellurium is used as an additive to metals and alloys. Tellurium and its compounds enter the body mainly through the respiratory system, as well as through the mouth and skin. Penetration into the body through the respiratory tract causes nausea, bronchitis, and pneumonia. The tellurium compounds are restored to elementary tellurium or amenable to methylation (methyl telluride has a characteristic garlic odor; it is less toxic than tellurium) in the body. Tellurium is excreted through the kidneys and gastrointestinal tract. Methyl telluride is excreted from the body partially with exhaled air and with sweat. For the diagnosis of acute heavy metal poisoning, blood is mainly used. The use of updated algorithm-criteria for assessing the severity of clinical manifestations of systemic organ toxicity of poisons provides an appropriate level of diagnosis of disorders of vital body functions. Treatment of such patients should include antidote and symptomatic therapy depending on the severity of clinical manifestations. To prevent the development of telluric intoxication, first of all, it is necessary to apply maximum sealing and automation of production processes. It is also necessary to introduce ventilation in production facilities and to carry out preliminary and periodic medical examinations of workers without fail. The use of personal protective equipment is also required.
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2

Wang, Sharon Xuesong, Natasha Latouf, Peter Plavchan, Bryson Cale, Cullen Blake, Étienne Artigau, Carey M. Lisse, Jonathan Gagné, Jonathan Crass, and Angelle Tanner. "Characterizing and Mitigating the Impact of Telluric Absorption in Precise Radial Velocities." Astronomical Journal 164, no. 5 (October 24, 2022): 211. http://dx.doi.org/10.3847/1538-3881/ac947a.

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Abstract Precise radial velocity (PRV) surveys are important for the search for Earth analogs around nearby bright stars, which induce a small stellar reflex motion with an RV amplitude of ∼10 cm s−1. Detecting such a small RV signal poses challenges to instrumentation, data analysis, and the precision of astrophysical models to mitigate stellar jitter. In this work, we investigate an important component in the PRV error budget—the spectral contamination from the Earth’s atmosphere (tellurics). We characterize the effects of telluric absorption on the RV precision and quantify its contribution to the RV error budget over time and across a wavelength range of 350 nm–2.5 μm. We use simulated solar spectra with telluric contamination injected, and we extract the RVs using two commonly adopted algorithms: dividing out a telluric model before performing cross-correlation or forward modeling the observed spectrum incorporating a telluric model. We assume various degrees of cleanness in removing the tellurics. We conclude that the RV errors caused by telluric absorption can be suppressed to close to or even below 1–10 cm s−1 in the blue optical region. At red through near-infrared wavelengths, however, the residuals of tellurics can induce an RV error on the meter-per-second level even under the most favorable assumptions for telluric removal, leading to significant systematic noise in the RV time series and periodograms. If the red-optical or near-infrared becomes critical in the mitigation of stellar activity, systematic errors from tellurics can be eliminated with a space mission such as EarthFinder.
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3

Ollivier, Patrick R. L., Andrew S. Bahrou, Sarah Marcus, Talisha Cox, Thomas M. Church, and Thomas E. Hanson. "Volatilization and Precipitation of Tellurium by Aerobic, Tellurite-Resistant Marine Microbes." Applied and Environmental Microbiology 74, no. 23 (October 10, 2008): 7163–73. http://dx.doi.org/10.1128/aem.00733-08.

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ABSTRACT Microbial resistance to tellurite, an oxyanion of tellurium, is widespread in the biosphere, but the geochemical significance of this trait is poorly understood. As some tellurite resistance markers appear to mediate the formation of volatile tellurides, the potential contribution of tellurite-resistant microbial strains to trace element volatilization in salt marsh sediments was evaluated. Microbial strains were isolated aerobically on the basis of tellurite resistance and subsequently examined for their capacity to volatilize tellurium in pure cultures. The tellurite-resistant strains recovered were either yeasts related to marine isolates of Rhodotorula spp. or gram-positive bacteria related to marine strains within the family Bacillaceae based on rRNA gene sequence comparisons. Most strains produced volatile tellurides, primarily dimethyltelluride, though there was a wide range of the types and amounts of species produced. For example, the Rhodotorula spp. produced the greatest quantities and highest diversity of volatile tellurium compounds. All strains also produced methylated sulfur compounds, primarily dimethyldisulfide. Intracellular tellurium precipitates were a major product of tellurite metabolism in all strains tested, with nearly complete recovery of the tellurite initially provided to cultures as a precipitate. Different strains appeared to produce different shapes and sizes of tellurium containing nanostructures. These studies suggest that aerobic marine yeast and Bacillus spp. may play a greater role in trace element biogeochemistry than has been previously assumed, though additional work is needed to further define and quantify their specific contributions.
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4

du Mont, Wolf-W. "Die Reaktion von Tri-t-butylphosphan und Tri-t-butylarsan mit Selen und Tellur: Bildung inerter und labiler Chalkogenophosphorane und -arsorane / The Reaction of Tri-t-butylphosphane and Tri-t-butylarsane with Selenium and Tellurium: Formation of Inert and Labile Chalcogenophosphoranes and -arsoranes." Zeitschrift für Naturforschung B 40, no. 11 (November 1, 1985): 1453–56. http://dx.doi.org/10.1515/znb-1985-1106.

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The reactions of tri-t-butylphosphane 1 with selenium and tellurium proceed quantitatively with formation of seleno- and the telluro-tri-t-butylphosphorane. respectively (3, 4). Tri-t-butylarsane 2 reacts with selenium to give seleno-tri-t-butylarsorane (5), but no significant interaction is observed between 2 and elemental tellurium. 1H and 31P NMR spectra provide evidence for rapid tellurium transfer between telluro-tri-t-butylphosphorane (4) and tri-t-butylphosphane (1), tri-t-butylarsane (2) or tris(dimethylamino)phosphane. Selenium transfer between seleno-tri-t-butylarsorane (5) and tri-t-butylarsane (2) leads to 1H and 13C NMR line broadening. Vibrational spectra of t-Bu3E−Y (3: E = P, Y = Se; 4: E = P, Y = Te; 5: E = As, X = Se) indicate coupling of E−C and E−Y stretching vibrations in 3 and 4.
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5

Presentato, Alessandro, Raymond J. Turner, Claudio C. Vásquez, Vladimir Yurkov, and Davide Zannoni. "Tellurite-dependent blackening of bacteria emerges from the dark ages." Environmental Chemistry 16, no. 4 (2019): 266. http://dx.doi.org/10.1071/en18238.

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Environmental contextAlthough tellurium is a relatively rare element in the earth’s crust, its concentration in some niches can be naturally high owing to unique geology. Tellurium, as the oxyanion, is toxic to prokaryotes, and although prokaryotes have evolved resistance to tellurium, no universal mechanism exists. We review the interaction of tellurite with prokaryotes with a focus on those unique strains that thrive in environments naturally rich in tellurium. AbstractThe timeline of tellurite prokaryotic biology and biochemistry is now over 50 years long. Its start was in the clinical microbiology arena up to the 1970s. The 1980s saw the cloning of tellurite resistance determinants while from the 1990s through to the present, new strains were isolated and research into resistance mechanisms and biochemistry took place. The past 10 years have seen rising interest in more technological developments and considerable advancement in the understanding of the biochemical mechanisms of tellurite metabolism and biochemistry in several different prokaryotes. This research work has provided a list of genes and proteins and ideas about the fundamental metabolism of Te oxyanions. Yet the biomolecular mechanisms of the tellurite resistance determinants are far from established. Regardless, we have begun to see a new direction of Te biology beyond the clinical pathogen screening approaches, evolving into the biotechnology fields of bioremediation, bioconversion and bionanotechnologies and subsequent technovations. Knowledge on Te biology may still be lagging behind that of other chemical elements, but has moved beyond its dark ages and is now well into its renaissance.
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6

Zawadzka, Anna M., Ronald L. Crawford, and Andrzej J. Paszczynski. "Pyridine-2,6-Bis(Thiocarboxylic Acid) Produced by Pseudomonas stutzeri KC Reduces and Precipitates Selenium and Tellurium Oxyanions." Applied and Environmental Microbiology 72, no. 5 (May 2006): 3119–29. http://dx.doi.org/10.1128/aem.72.5.3119-3129.2006.

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ABSTRACT The siderophore of Pseudomonas stutzeri KC, pyridine-2,6-bis(thiocarboxylic acid) (pdtc), is shown to detoxify selenium and tellurium oxyanions in bacterial cultures. A mechanism for pdtc's detoxification of tellurite and selenite is proposed. The mechanism is based upon determination using mass spectrometry and energy-dispersive X-ray spectrometry of the chemical structures of compounds formed during initial reactions of tellurite and selenite with pdtc. Selenite and tellurite are reduced by pdtc or its hydrolysis product H2S, forming zero-valent pdtc selenides and pdtc tellurides that precipitate from solution. These insoluble compounds then hydrolyze, releasing nanometer-sized particles of elemental selenium or tellurium. Electron microscopy studies showed both extracellular precipitation and internal deposition of these metalloids by bacterial cells. The precipitates formed with synthetic pdtc were similar to those formed in pdtc-producing cultures of P. stutzeri KC. Culture filtrates of P. stutzeri KC containing pdtc were also active in removing selenite and precipitating elemental selenium and tellurium. The pdtc-producing wild-type strain KC conferred higher tolerance against selenite and tellurite toxicity than a pdtc-negative mutant strain, CTN1. These observations support the hypothesis that pdtc not only functions as a siderophore but also is involved in an initial line of defense against toxicity from various metals and metalloids.
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7

Pugin, Benoit, Fabián A. Cornejo, Pablo Muñoz-Díaz, Claudia M. Muñoz-Villagrán, Joaquín I. Vargas-Pérez, Felipe A. Arenas, and Claudio C. Vásquez. "Glutathione Reductase-Mediated Synthesis of Tellurium-Containing Nanostructures Exhibiting Antibacterial Properties." Applied and Environmental Microbiology 80, no. 22 (September 5, 2014): 7061–70. http://dx.doi.org/10.1128/aem.02207-14.

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ABSTRACTTellurium, a metalloid belonging to group 16 of the periodic table, displays very interesting physical and chemical properties and lately has attracted significant attention for its use in nanotechnology. In this context, the use of microorganisms for synthesizing nanostructures emerges as an eco-friendly and exciting approach compared to their chemical synthesis. To generate Te-containing nanostructures, bacteria enzymatically reduce tellurite to elemental tellurium. In this work, using a classic biochemical approach, we looked for a novel tellurite reductase from the Antarctic bacteriumPseudomonassp. strain BNF22 and used it to generate tellurium-containing nanostructures. A new tellurite reductase was identified as glutathione reductase, which was subsequently overproduced inEscherichia coli. The characterization of this enzyme showed that it is an NADPH-dependent tellurite reductase, with optimum reducing activity at 30°C and pH 9.0. Finally, the enzyme was able to generate Te-containing nanostructures, about 68 nm in size, which exhibit interesting antibacterial properties againstE. coli, with no apparent cytotoxicity against eukaryotic cells.
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8

Rosamilia, J. M., and B. Miller. "Voltammetric studies of tellurium film and hydrogen telluride formation in acidic tellurite solution." Journal of Electroanalytical Chemistry and Interfacial Electrochemistry 215, no. 1-2 (December 1986): 261–71. http://dx.doi.org/10.1016/0022-0728(86)87020-6.

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9

Mu, Yannan, Qian Li, Pin Lv, Yanli Chen, Dong Ding, Shi Su, Liying Zhou, Wuyou Fu, and Haibin Yang. "Fabrication of NiTe films by transformed electrodeposited Te thin films on Ni foils and their electrical properties." RSC Adv. 4, no. 97 (2014): 54713–18. http://dx.doi.org/10.1039/c4ra11246f.

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10

Tanaka, Masayoshi, Atsushi Arakaki, Sarah S. Staniland, and Tadashi Matsunaga. "Simultaneously Discrete Biomineralization of Magnetite and Tellurium Nanocrystals in Magnetotactic Bacteria." Applied and Environmental Microbiology 76, no. 16 (June 25, 2010): 5526–32. http://dx.doi.org/10.1128/aem.00589-10.

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ABSTRACT Magnetotactic bacteria synthesize intracellular magnetosomes comprising membrane-enveloped magnetite crystals within the cell which can be manipulated by a magnetic field. Here, we report the first example of tellurium uptake and crystallization within a magnetotactic bacterial strain, Magnetospirillum magneticum AMB-1. These bacteria independently crystallize tellurium and magnetite within the cell. This is also highly significant as tellurite (TeO3 2−), an oxyanion of tellurium, is harmful to both prokaryotes and eukaryotes. Additionally, due to its increasing use in high-technology products, tellurium is very precious and commercially desirable. The use of microorganisms to recover such molecules from polluted water has been considered as a promising bioremediation technique. However, cell recovery is a bottleneck in the development of this approach. Recently, using the magnetic property of magnetotactic bacteria and a cell surface modification technology, the magnetic recovery of Cd2+ adsorbed onto the cell surface was reported. Crystallization within the cell enables approximately 70 times more bioaccumulation of the pollutant per cell than cell surface adsorption, while utilizing successful recovery with a magnetic field. This fascinating dual crystallization of magnetite and tellurium by magnetotactic bacteria presents an ideal system for both bioremediation and magnetic recovery of tellurite.
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Більше джерел

Дисертації з теми "Tellurio"

1

Rooms, John Frederick. "A matrix isolation investigation of tellurium crochemistry using hydrogen telluride and tellurium dimers as precursors." Thesis, University of Hull, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419789.

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2

Ruscitti, Oliver P. "Beiträge zur Tellur-Stickstoffchemie sowie zu Verbindungen des Tellurs mit Halogenen und Pseudohalogenen." Diss., lmu, 2001. http://nbn-resolving.de/urn:nbn:de:bvb:19-3187.

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3

Ruscitti, Oliver P. "Beiträge zur Tellur-Stickstoff-Chemie sowie zu Verbindungen des Tellurs mit Halogenen und Pseudohalogenen." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963032313.

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4

Espinosa, Ortiz Erika. "Bioreduction of selenite and tellurite by Phanerochaete chrysosporium." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1193/document.

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Le sélénium et le tellurium partagent des propriétés chimiques communes et appartiennent à la colonne des éléments chalcogènes de la classification périodique des éléments. Ces métalloïdes ont des propriétés physico-chimiques remarquables et ils ont été utilisés dans un grand nombre d'applications dans le domaine des hautes technologies (électronique, semi-conducteurs, alliages). Ces éléments, qui se retrouvent généralement sous formes d'oxyanions, sont extrêmement solubles dans l'eau et présentent une forte toxicité. Leur libération dans l'environnement est donc d'un enjeu capital. Différentes méthodes physico-chimiques ont été développées pour la récupération de ces metalloïdes, en particulier pour le sélénium. Néanmoins, ces méthodes requièrent un équipement lourd et couteux et ne sont pas très recommandables sur le plan écologique. Le traitement biologique est donc une bonne alternative pour la récupération de Se et de Te provenant des effluents pollués. Cette approche réside dans la bioréduction des différents oxyanions sous formes métalliques. Ceux-ci sont moins toxiques et d'intérêts commerciales notables surtout lorsqu'ils se présentent sous forme nanométrique. L'utilisation de micro-champignons comme microorganismes catalyseur de la réduction de Se et de Te a été démontrée dans cette étude. La réactivité du champignon responsable de la pourriture blanche, Phanerochaete chrysosporium en présence de sélénite et de tellurite a été évaluée, ainsi que son application potentielle pour le traitement des eaux contaminées et la production de nanoparticules. La présence de Se et de Te a une influence importante sur la croissance et la morphologie du champignon. Il s'avère que P. chrysosporium est très sensible à la présence de sélénites. La synthèse de Se° et de Te° sous forme de nanoparticules piégées dans la biomasse fongique a été observée, ainsi que la formation de nano-composites Se-Te lorsque le champignon était cultivé simultanément en présence des deux métalloïdes. L'usage potentiel de biofilm fongiques pour le traitement des effluents semi-acides (pH 4.5) contenant du Se et du Te a été suggéré. De plus, le traitement en mode continu de sélénite dans un réacteur à biofilm fongique granulaire a été évalué. Le réacteur a montré un rendement d'élimination du sélénium en régime permanent de 70% pour differentes conditions opératoires. Celui-ci s'est montré efficace pendant une période supérieure à 35 jours. La bonne sédimentation du biofilm granulaire facilite la séparation du sélénium de l'effluent traité. L'utilisation du biofilm granulaire contenant du sélénium élémentaire comme bio-sorbant a également été étudiée. Cet adsorbant hybride s'est montré prometteur pour l'immobilisation du zinc présent dans les effluents semi-acides. La plupart des recherches effectuées se sont focalisées sur l'utilisation des biofilms granulaires. Toutefois, la croissance du champignon suite à l'exposition à des concentrations différentes de sélénites a également été étudiée. Des micro-électrodes à oxygène et un microscope confocal à balayage laser ont été utilisées pour évaluer l'effet du sélénium sur la structure des biofilms fongiques. Quel que soit le mode de croissance de P. chrysosporium, le mécanisme de réduction du sélénite semble être toujours le même tout en menant à la formation de sélénium élémentaire. Cependant, l'architecture des biofilms et l'activité en oxygène sont influencées par la présence de sélénium
Selenium (Se) and tellurium (Te) are particular elements, they are part of the chalcogens (VI-A group of the periodic table) and share common properties. These metalloids are of commercial interest due to their physicochemical properties, and they have been used in a broad range of applications in advanced technologies. The water soluble oxyanions of these elements (i.e., selenite, selenate, tellurite and tellurate) exhibit high toxicities, thus their release in the environment is of great concern. Different physicochemical methods have been developed for the removal of these metalloids, mainly for selenium. However, these methods require specialized equipment, high costs and they are not ecofriendly. The biological treatment is a green alternative to remove Se and Te from polluted effluents. This remediation technology consists on the microbial reduction of Se and Te oxyanions in wastewater to their elemental forms (Se0 and Te0), which are less toxic, and when synthesized in the nano-size range, they can be of commercial value due to their enhanced properties. The use of fungi as potential Se- and Te-reducing organisms was demonstrated in this study. Response of the model white-rot fungus, Phanerochaete chrysosporium, to the presence of selenite and tellurite was evaluated, as well as their potential application in wastewater treatment and production of nanoparticles. The presence of Se and Te had a clear influence on the growth and morphology of the fungus. P. chrysosporium was found to be more sensitive to selenite. Synthesis of Se0 and Te0 nanoparticles entrapped in the fungal biomass was observed, as well as the formation of unique Se-Te nanocomposites when the fungus was cultivated concurrently in the presence of Se and Te. Potential use of fungal pellets for the removal of Se and Te from semi-acidic effluents (pH 4.5) was suggested. Moreover, the continuous removal of selenite in a fungal pelleted reactor was evaluated. The reactor showed to efficiently remove selenium at steady-state conditions (~70%), and it demonstrated to be flexible and adaptable to different operational conditions. The reactor operated efficiently over a period of 35 days. Good settleability of the fungal pellets facilitated the separation of the selenium from the treated effluent. The use of elemental selenium immobilized fungal pellets as novel biosorbent material was also explored. This hybrid sorbent was promising for the removal of zinc from semi-acidic effluents. The presence of selenium in the fungal biomass enhanced the sorption efficiency of zinc, compared to Se-free fungal pellets. Most of the research conducted in this study was focused on the use of fungal pellets. However, the response of the fungus to selenite in a different kind of growth was also evaluated. Microsensors and confocal imaging were used to evaluate the effects of selenium on fungal biofilms. Regardless of the kind of fungal growth, P. chrysosporium seems to follow a similar selenite reduction mechanism, leading to the formation of Se0. Architecture of the biofilm and oxygen activity were influenced by the presence of selenium
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Guéry, Guillaume. "Elaboration et optimisation de verres tellurites pour des applications de gain Raman." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00868798.

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L'expansion de nouvelles technologies et la demande incessante d'une transmission d'informations plus rapide font que les systèmes de télécommunications nécessitent plus de débit sur de plus longues distances. L'amplification optique et notamment l'amplification optique par effet Raman représente une intéressante possibilité à repousser les limites de distance et de debit.Les verres à base d'oxyde de tellure sont des matériaux prometteurs pour les applications d'amplification optique par effet Raman; en particulier grâce à leurs fortes propriétés optiques linéaires et non linéaires, leurs fenêtres de transparence allant dans le proche et milieu infra-rouge du spectre de transmission. De plus, leurs propriétés thermiques et en particulier leurs faibles temperatures de transition vitreuse permettent une facilité de fibrage. L'estimation de l'intensité du gain Raman et sa zone spectrale mise en jeu sont généralement approchées à partir du spectre de diffusion Raman spontanée du matériaux. La compréhension des relations existantes entre la structure vitreuse, la réponse vibrationnelle et les propriétés d'optique non linéaire, représente un point clé au développement et à l'optimisation des verres de tellure pour l'amplification Raman. Cette dissertation apporte une réponse détaillée à la question fondamentale de l'étude doctorale: "Quel est l'impact de la structure vitreuse sur les propriétés d'amplification Raman dans les verres d'oxyde de tellure?"
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6

Bucella, Teresa. "Sviluppo di un banco prova per la caratterizzazione sperimentale di un sistema di recupero termico basato su generatori termoelettrici." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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L’attualità del settore tecnologico e le potenzialità dei generatori termoelettrici sono stati il punto di partenza per condurre un approfondimento mirato alla caratterizzazione sperimentale dei 6 moduli a base di bismuto di tellurio e di modello TEG2-126LDT. È stata effettuata un’analisi preliminare dei moduli in modo da comprendere al meglio condizioni operative, potenzialità, proprietà termoelettriche, parametri caratteristici e approfondire il principio di funzionamento della generazione termoelettrica. Per la raccolta dei dati sperimentali è stato allestito un banco prova che si compone di una struttura di supporto, quattro elementi riscaldanti collegati in parallelo per simulare la sorgente di calore, due ventole per il raffreddamento ad aria e Arduino Mega 2560 come sistema di acquisizione delle misure di temperatura e tensione. Le misure di interesse sono state effettuate attraverso il modulo DC0-25V per la tensione generata da ogni modulo in regime di carico disaccoppiato e le termocoppie di tipo “K” per la misura delle temperature sul lato riscaldato e raffreddato del TEG. Il modello di TEG analizzato è impiegato nella conversione di calore alle basse temperature, cioè fino a 200°C a cui corrisponde una tensione a vuoto generata pari a 8.6 V. Sulla base delle curve caratteristiche ottenute è stato calcolato il coefficiente di Seebeck. L’analisi sperimentale è stata approfondita a sua volta ricercando i parametri prestazionali, ossia il valore della figura di merito ZT e dell’efficienza di conversione del calore in potenza elettrica. I risultati ottenuti attestano le scarse efficienze raggiunte dai generatori termoelettrici che attualmente non presentano caratteristiche competitive nella sostituzione dei principali sistemi di produzione dell’energia. Si è ipotizzato infine il funzionamento dei moduli nella condizione più favorevoli, cioè di massima generazione di tensione quando è applicata una differenza di temperatura pari a 170°C.
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7

Cui, Sho. "Synthesis and characterization of tellurium based glasses for far infrared sensing and thermoelectric applications." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S155/document.

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Les verres de tellures sont des matériaux récemment remis au goût du jour pour des applications en optiques. Certaines compositions permettent en effet de transmettre la lumière loin dans l’infrarouge au-delà de 20 µm, mais leur tendance naturelle à recristalliser rend difficile la fabrication d’objet pour la photonique telle que des fibres optiques. Des verres du système Te-Ge-Se ont été développés dans le cadre du projet Darwin de l’Agence Spatiale Européenne permettant de détecter la bande d’absorption du CO2 à 15 µm. La première fibre optique monomode a été obtenue à partir d’une nouvelle méthode de fabrication de préforme par moulage. Les verres de tellure du système Te-Ge-AgI sont les seuls à ne pas présenter de pic de cristallisation en analyse thermique. Leur stabilité a été mise à profit pour développer des fibres optiques avec un niveau très bas de pertes optiques, de l’ordre de 3 dB∙m-1, ce qui constitue un record. Ces fibres ont été utilisées pour mettre en œuvre des expériences de spectroscopie par ondes évanescentes permettant d’accéder à une gamme de longueurs d’onde encore jamais atteinte de 2 à 16 µm. Ce gain sera de première importance pour la mise en service de ces fibres en biologie ou médecine.Par ailleurs, les verres de tellure sont les verres présentant les conductivités électroniques les plus élevées jamais mesurées. Il s’agit donc de matériaux potentiellement intéressants pour la thermoélectricité. Certaines compositions du système (Te/Se)-(As/Sb/Bi)-(Cu/Ag) ont été synthétisées et caractérisées. Des matériaux composites obtenus par broyage et compression de poudres de verre et de Bi0.5Sb1.5Te3 cristallisé ont été préparés. Ces derniers présentent un ZT = 0.365 à 413 K, ce qui est encourageant pour l’avenir
The tellurium-based glasses are of interest because of their transparency in the mid- and far-infrared range. Tellurium-based glasses and optical fibers can be used for the detection the atmosphere of terrestrial planets in Darwin project and the identification of chemical species in the daily life. For the detection of CO2 (15 µm) on exoplanet, high purity Te-Ge-Se experimental single mode fiber which can transmit light up to 16 μm has been successfully fabricated based on a new preform molding process. Moreover, Te-Ge-AgI glasses, which present no crystallization peak and far infrared transmittance beyond 30 μm (as bulk), are also candidates for infrared sensing. A structural model proposed in this work provides some explanations on their good thermal stability. Low-loss single index fibers drawn from these glasses have shown their capabilities to collect mid-infrared spectra from 2 to 16 µm. To the best of our knowledge, it is the first fiber evanescent wave spectra collected on such a wide range. This achievement will be essential for future medical applications.Otherwise, tellurium-based glasses, due to the intrinsic poor thermal conductivity and high Seebeck coefficient, are good candidates as new materials in the thermoelectricity field. Te-As-Se-Cu glass with the introduction of copper up to 25% has been explored. By sintering this glass with Bi0.5Sb1.5Te3, glass-ceramic composites were also obtained exhibiting maximum zT values equal to 0.365 at 413 K
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8

Buchanan, Christopher Taylor. "From Telluric (Earth) To Tectonic (Sky)." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/32447.

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My graduate thesis is a study of telluric and tectonic architecture. These two ideas inspired me to design a baseball stadium for the town of Blacksburg, Virginia that portrayed the contrasting concepts "of the earth" and "of the sky."
Master of Architecture
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9

Mal, Joyabrata. "Microbial synthesis of chalcogenide nanoparticles." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1136/document.

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Ces dernières années ont vu un intérêt croissant pour l'application de nanoparticules de chalcogénure (IP) (par exemple Se, Te) dans divers secteurs industriels, y compris l'énergie, les aciers, le verre et le raffinage du pétrole. Le chalcogénure métallique fluorescent (par exemple CdSe, CdTe) NPs sont utilisés dans les cellules solaires, les capteurs optoélectroniques et aussi dans le domaine de la biologie et de la médecine pour l'imagerie ou de détection comprenant biolabelling. En outre, en raison de la forte toxicité des oxyanions chalcogènes (à savoir, sélénite, séléniate, tellurites et tellurate), leur libération dans l'environnement est très préoccupante. Ainsi, mettre l'accent a été donné dans cette thèse sur le développement d'un nouveau procédé de synthèse microbienne des NPs chalcogénures en combinant le traitement biologique des eaux usées Se / Te contenant avec biorecovery de Se / Te sous la forme de Se / Te chalcogénures NPs.Une attention particulière a été accordée pour étudier l'effet des métaux lourds (par exemple Cd, Zn et Pd) co-contaminants sur bioréduction sélénite par anaérobie granulaire boues. boue anaérobie granulaire capable de réduire sélénite de séléniure de, en présence de Cd a été enrichie pour la synthèse microbienne de CdSe IP. Il était évident que lorsque Cd est présent avec sélénite, soit il forme un complexe de Se-Cd par adsorption sur biogène Se (0) des nanoparticules après EME-oxyanion ou bioréduction il réagit avec le séléniure aqueux (HSe-) pour former CdSe. Les spectres d'absorption et de fluorescence de la phase aqueuse à confirmer la présence de CdSe IP dans la phase aqueuse. spectroscopie Raman et X-ray spectroscopie de photoélectrons (XPS) analyse l'appui de cette constatation. La formation d 'une couche alliée de CdSxSe1-x à l'interface entre le noyau et CdS CdSe shell dans la boue a également été observée. Des études détaillées sur les substances polymères extracellulaires (EPS) révèlent que la teneur en protéines et en polysaccharides comme augmenté dans les EPS extraites de boues enrichi tandis que les substances humiques comme diminué. chromatographie d'exclusion de taille (SEC) des EPS révèle en outre une empreinte distincte pour les protéines et les substances humiques-like, avec une augmentation de haute teneur en protéines comme poids moléculaire et l'apparition de nouveaux pics pour les substances humiques comme dans les EPS après l'enrichissement.Anaérobie des boues lit granulaire (UASB) à courant ascendant a été utilisé pour la première fois pour le retrait continu de tellurite des eaux usées synthétique et la récupération du Te comme biogénique Te (0). La spectroscopie aux rayons X à dispersion d'énergie (EDS), diffraction des rayons X (XRD) et analyse spectroscopique Raman de la biomasse a confirmé le dépôt de Te (0) dans la biomasse. Il était évident que la majorité du Te (0) a été piégé principalement dans l'EPS entourant la biomasse, qui peut être facilement séparé par centrifugation
Recent years have seen a growing interest in the application of chalcogenide nanoparticles (NPs) (e.g. Se, Te) in various industrial sectors including energy, steels, glass and petroleum refining. The fluorescent metal chalcogenide (e.g. CdSe, CdTe) NPs are used in solar cells, optoelectronic sensors and also in the field of biology and medicine for imaging or sensing including biolabelling. Moreover, due to the high toxicity of chalcogen oxyanions (i.e., selenite, selenate, tellurite and tellurate), their release in the environment is of great concern. Thus, emphasize was given in this thesis on the development of a novel microbial synthesis process of chalcogenide NPs by combining biological treatment of Se/Te-containing wastewaters with biorecovery of Se/Te in the form of Se/Te chalcogenides NPs.A special focus was given to study the effect of heavy metal (e.g. Cd, Zn and Pd) co-contaminants on selenite bioreduction by anaerobic granular sludge. Anaerobic granular sludge capable of reducing selenite to selenide in the presence of Cd was enriched for the microbial synthesis of CdSe NPs. It was evident that when Cd is present along with selenite, it either forms a Se-Cd complex by adsorption onto biogenic Se(0) nanoparticles after Se-oxyanion bioreduction or it reacts with aqueous selenide (HSe-) to form CdSe. The absorption and fluorescence spectra of the aqueous phase confirm the presence of CdSe NPs in the aqueous phase. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) analysis support this finding. The formation of an alloyed layer of CdSxSe1-x at the interface between the CdSe core and CdS shell in the sludge was also observed. Detailed studies on the extracellular polymeric substances (EPS) reveal that the protein and polysaccharide-like content increased in the EPS extracted from enriched sludge while humic-like substances decreased. Size exclusion chromatography (SEC) of EPS further reveals a distinct fingerprint for proteins and humic-like substances, with increase in high molecular weight protein-like and the appearance of new peaks for humic-like substances in the EPS after the enrichment.An upflow anaerobic granular sludge bed (UASB) reactor was used for the first time for continuous removal of tellurite from synthetic wastewater and the recovery of Te as biogenic Te(0). Energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and Raman spectroscopic analysis of biomass confirmed the deposition of Te(0) in the biomass. It was evident that the majority of the Te(0) was trapped predominantly in the EPS surrounding the biomass, which can be easily separated by centrifugation
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10

Günther, Anja. "Tellurringe als Elektronenpaardonoren in Clusterverbindungen und Koordinationspolymeren." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-78513.

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Durch diese Arbeit konnten einerseits neuartige sowie bereits bekannte molekulare Tellurringe in Clusterverbindungen und quasi-eindimensionalen Koordinationspolymeren erhalten werden. Die Stabilisierung der zyklischen, homonuklearen Einheiten erfolgt dabei stets durch die Koordination an elektronenreiche Übergangsmetallatome, wobei die koordinierenden Telluratome gegenüber diesen als Zwei-Elektronendonoren fungieren. Die molekularen Clusterverbindungen [M(Te10)](TeX4)2(TeX3)2 (M = Rh, Ir X = Cl, Br) sowie [Ru2(Te10)](TeI4)2(TeI2)2 beinhalten eine übergangsmetallstabilisierte, neutrale Te10-Einheit, wobei jedes Übergangsmetallatom zusätzlich zwei terminale Halogenidotelluratliganden koordiniert. Im neuartigen, zehngliedrigen (Te04Te+0,54Te2)-Fragment finden sich zwei nahezu linear umgebende Telluratome, die als "Tellurbrücke", zwei gefaltete Te4-Ringe zur Vervollständigung der tricyclo[5.1.1.13;5]-Einheit koordinieren. Die Bindungssituation der nahezu linearen Te3-Sequenzen im homonuklearen Fragment sowie die [X-Te-X]-Sequenzen der Halogenidotelluratliganden lassen sich mit 3c4e-Bindungen verstehen. Anhand quantenchemischer Rechnungen konnte die Mehrzentrenbindung sowie die Aussage eines übergangsmetallstabilisierten Fragments bestätigt werden. In den inkommensurabel modulierten Kristallstrukturen (M2Te14I12)(TeI4) Te2I2) (M = Rh, Ir) existieren hingegen zweifach positiv geladene (M2Te14I12)2+-Cluster (M = Rh, Ir) neben nahezu planaren Schichten bestehend aus (TeI4)2--Gruppen und (Te2I2) Molekülen. Das (Te+I2I2) Molekül konnte anhand quantenchemischer Rechnungen als stabiles Molekül in der Gasphase bestätigt werden und stellt ein schweres Homologes des S2Cl2 dar. Die quaternäre Verbindung (Ir2Te14Br12)2(InBr4)2 enthält ebenfalls einen zweifach positiv geladenen Cluster, {[Ir3+2(Te0)4(Te+0,5)4(Te-)2]Te2+2Br-6)2}2+, dessen Ladung durch zwei einfach negativ geladene (In3+Br4)--Gruppen ausgeglichen wird sowie einem neutralen Cluster, [Ir3+2(Te0)4(Te3.-)2](Te2+2Br-6)2, mit einem Te3.--Radikalanion, dessen Existenz mittels ESR-Spektroskopie nachgewiesen wurde. Die aus diskreten Molekülen aufgebaute Verbindung [Ru2(Te6)]TeBr3)4(TeBr2)2 kann je nach Betrachtungsweise entweder als Te6-Ring, der durch zwei (Ru2+Te2+3Br-8)-Kappen umgeben ist oder als [Ru2Te6]4+-Heterokuban, welcher zusätzlich mit Bromidotelluratliganden koordiniert ist, beschrieben werden. In den Kristallstrukturen der ternären Koordinationspolymere [M(Te6)]X3 (M = Rh, Ir; X = Cl, Br, I) verlaufen entlang der c-Achse lineare, positiv geladene [M(Te6)]3+-Ketten (M = Rh,Ir), in denen abwechselnd ein ektronenreiches Übergangsmetallatom und sechsgliedrige Tellurringe koordinativ gebunden sind, wodurch eine hoch symmetrische Anordnung realisiert wird. Dabei zeigt sich aufgrund der starken Bindung an die Übergangsmetallatome eine erhebliche Ringspannung im Vergleich zu den bekannten sechsgliedrigen Tellureinheiten. Isolierte Halogenidionen, welche sich in der Ebene der Übergangsmetallatome befinden, dienen einerseits zum Ladungsausgleich der positiv geladenen Ketten und verbrücken andererseits innerhalb eines Stranges benachbarte Te6-Ringe. Im Koordinationspolymer [Ru(Te8)]Cl2 konnte ein neutraler Te8-Ring mit einer bislang für achtgliedrige Chalkogenmoleküle unbekannten Konformation röntgenographisch nachgewiesen werden. Die Abweichung von der bevorzugten Kronenform, ist wiederum ein E ekt der starken Bindung zwischen den Telluratomen und den Rutheniumatomen. In den linearen, positiv geladenen [Ru(Te8)]2+-Strängen binden 3+3 Telluratome an zwei benachbarte Rutheniumatome. Isolierte Chlorid-Ionen, die zwischen den positiven Strängen eingelagert sind, dienen in der Kristallstruktur zum Ladungsausgleich. Das quaternäre Koordinationspolymer [Ru(Te9)](InCl4)2 beinhaltet eine neuartige, zyklische Te9-Einheit, welche die Vielfalt der tellurreichen Ringstrukturen erweitert. Analog zum ternären Koordinationspolymer [Ru(Te8)]Cl2 gliedert sich die Kristallstruktur in [Ru(Te9)]2+-Stränge, die entlang der c-Achse verlaufen, und dem komplexen Anion (InCl4)-. Ein besonders interessantes Strukturmerkmal der positiv geladenen Stränge stellt das käfigartige Fragment [Ru-(Te9)-Ru] dar, dessen hexazyklischer Aufbau aus kondensierten Fünfringen den isolierten Undecapniktiden Pn113- (Pn = P, As, Sb) topologisch äquivalent ist. Für einen genaueren Einblick in die chemische Bindung der tellurreichen Koordinationspolymere [Rh(Te6)]Cl3, [Ru(Te8)]Cl2 und [Ru(Te9)](InCl4)2 wurden quantenchemische Rechnungen durchgeführt. Eine topologische Analyse der Elektronendichte und des Elektronenlokalisierbarkeitsindikators (ELI-D) an koordinierenden und freien Tellurmolekülen sollte zu detaillierten Aussagen über Gründe der extremen Ringspannung aufgrund der Koordination führen. Zusammenfassend kann feststellt werden, dass die Verzerrung der Tellurringe in den Koordinationspolymeren einerseits der gerichteten Bindung zu den Übergangsmetallatomen geschuldet ist und andererseits um Platz für die sich abstoßenden freien Elektronenpaare zu bekommen. Für weitere Arbeiten könnten zunächst einerseits die Untersuchungen zur Löslichkeit der Clusterverbindung Re4Q4(TeCl2)4Cl8 (Q = S, Se, Te) in organischen Lösungsmitteln als Ausgangspunkt für die Austauschreaktionen der terminalen Halogenidotelluratliganden durch neue verbrückenden Gruppen von Interesse sein. Andererseits kann auch innerhalb des untersuchten Systems, durch Variation der Eduktzusammensetzung, neuartige Tellurmoleküle erwartet sowie die bereits erworbenen Erkenntnisse zur Übertragung auf das leichtere Homologon Selen genutzt werden.
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Книги з теми "Tellurio"

1

McFarlane, J. Fission-product tellurium and cesium telluride chemistry revisited. Pinawa, Man: Whiteshell Laboratories, 1996.

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2

Telluride. Thorndike, Me: Thorndike Press, 1994.

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3

Telluride smile. New York: Dodd, Mead, 1988.

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4

Sawyer, Andrew. Telluride rocks. Telluride, CO: Shining Mountain Productions, 1997.

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5

Telluride: A novel. Chapel Hill, N.C: Algonquin Books of Chapel Hill, 1993.

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6

Janet, Steinberg, ed. Telluride: Landscapes & dreams. Telluride, CO: Montoya Pub., 2000.

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7

I͡Anaki, A. A. Telluridy perekhodnykh metallov. Moskva: "Metallurgii͡a", 1990.

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8

H, Huey George H., ed. The Telluride story. Ouray, Colo: Wayfinder Press, 1987.

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9

Detty, Michael R. Tellurium-containing heterocycles. New York: Wiley, 1994.

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10

Kh, Abrikosov N., ed. Tellurid germanii͡a︡ i ego fizicheskie svoĭstva. Moskva: "Nauka", 1986.

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Частини книг з теми "Tellurio"

1

Mathers, Frank C., Charles M. Rice, Howard Broderick, Robert Forney, A. J. King, and T. Harr. "Telluric Acid." In Inorganic Syntheses, 145–47. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132340.ch38.

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2

Takahashi, Yoshio. "Tellurium." In Encyclopedia of Earth Sciences Series, 1–3. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-39193-9_288-1.

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3

Takahashi, Yoshio. "Tellurium." In Encyclopedia of Earth Sciences Series, 1423–25. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_288.

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4

Crowson, Phillip. "Tellurium." In Minerals Handbook 1992–93, 255–59. London: Palgrave Macmillan UK, 1992. http://dx.doi.org/10.1007/978-1-349-12564-7_40.

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5

Banasik, Marek. "Tellurium." In Hamilton & Hardy's Industrial Toxicology, 233–38. Hoboken, New Jersey: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118834015.ch32.

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6

Crowson, Phillip. "Tellurium." In Minerals Handbook 1994–95, 265–69. London: Palgrave Macmillan UK, 1994. http://dx.doi.org/10.1007/978-1-349-13431-1_42.

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7

Crowson, Phillip. "Tellurium." In Minerals Handbook 1996–97, 375–80. London: Palgrave Macmillan UK, 1996. http://dx.doi.org/10.1007/978-1-349-13793-0_44.

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8

Brookins, Douglas G. "Tellurium." In Eh-pH Diagrams for Geochemistry, 20–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73093-1_5.

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9

Suttle, John F., Charles R. F. Smith, A. D. McElroy, W. E. Bennett, and J. Kleinberg. "Tellurium(IV) Chloride (Tellurium Tetrachloride)." In Inorganic Syntheses, 140–42. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132340.ch36.

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10

Marshall, H., A. J. King, and Thomas Harr. "Tellurium(IV) Oxide (Tellurium Dioxide)." In Inorganic Syntheses, 143–45. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132340.ch37.

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Тези доповідей конференцій з теми "Tellurio"

1

Nelson, Matthew P., Juliana M. Ribar, Robert Schweitzer, Scott A. Keitzer, Patrick J. Treado, Karl A. Harris, and Danny J. Reese. "Automated inspection of tellurium inclusions in cadmium zinc telluride (CdZnTe)." In International Symposium on Optical Science and Technology, edited by Ralph B. James and Richard C. Schirato. SPIE, 2000. http://dx.doi.org/10.1117/12.407581.

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2

Verstraeten, D., C. Longeaud, H. J. von Bardeleben, J. C. Launay, O. Viraphong, and Ph C. Lemaire. "PROBING VANADIUM DOPED CADMIUM TELLURIDE DENSITY OF STATES : ENERGY LEVEL OF THE TELLURIUM ANTISITE." In Photorefractive Effects, Materials, and Devices. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/pemd.2003.183.

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3

Adams, Aaron L., Aschalew Kassu, Wing Chan, Mebougna Drabo, Rodney Pinder, Stephen Egarievwe, Asja Radja, Ge Yang, and Ralph B. James. "Thermal Annealing: A Technique to Improve the Performance of Cadmium Zinc Telluride (CZT) Material for Semiconductor Radiation Detector Applications." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88270.

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Extensive research was undertaken over the past 20 years to investigate the suitability of cadmium zinc telluride (CZT) crystals as a material for room-temperature nuclear-radiation detectors. Large-volume CZT crystals, with thicknesses up to 2 cm and large effective areas of roughly 5–10 cm2, are needed to fabricate efficient detectors that meet the working requirements of federal agencies, such as the DOE/NNSA (Department Energy National Nuclear Security Administration), Department of Homeland Security (DHS), and the Department of Defense (DOD). However, because of the imperfect methods for growing crystals, the resulting large-volume crystals most often are not perfect single ones, and contain structural defects such as voids, pipes, impurities from source materials, tellurium inclusions and precipitates, vacancies, and vacancy-impurity complexes generated during the process of their production. Other extended defects that may be present include grain boundaries, micro twins, and walls of dislocations (sub-grain boundaries). Identifying these defects, controlling their occurrence and eliminating them from the bulk CZT material currently are important tasks that will improve the yield of detector-grade crystals from ingots, and ultimately better their performance. In this study, we used a post-growth thermal annealing technique to remove the performance-limiting defects caused by tellurium inclusions and associated impurities in the CZT crystals. We realized a 66% ± 16% reduction in the size of the inclusions, with an overall elimination of 17% ± 2% of them. We believe that our experimental results offer a better understanding of the optimal annealing parameters, and of the dynamic properties of post-growth annealing processes.
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4

Chun, Mark, Tim Butterley, Richard Wilson, Remy Avila, Jose-Luis Aviles, Brent Ellerbroek, and Francois Rigaut. "Telluric sodium layer temporal variations." In SPIE Astronomical Telescopes + Instrumentation, edited by Norbert Hubin, Claire E. Max, and Peter L. Wizinowich. SPIE, 2008. http://dx.doi.org/10.1117/12.787633.

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5

Missen, Owen, Joël Brugger, Stuart Mills, Barbara Etschmann, Rahul Ram, and Jeremiah Shuster. "Tellurium Biogeochemistry in the World’s Richest Tellurium Hotspot." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1813.

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6

Tanaka, Saburo, Masayuki Takashiri, and Koji Miyazaki. "Impact on Thermal Conductivities of Nanostructured Bismuth Telluride Based Thin Films." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44273.

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Nanostructured bismuth telluride based thin films, including nanoparticle and nanocrystalline have been prepared and measured their thermal conductivities. These thin films exhibit an average grain size of from 10 nm to 150 nm. The cross-plane thermal conductivities are measured by 3-omega method at 300 K. The determined nanostructured bismuth telluride thermal conductivities are 0.18 W/(m·K) and nanoparticle bismuth telluride thin film thermal conductivities are from 0.61 W/(m·K) to 0.80 W/(m·K). As compared with bulk alloys at the same atomic composition, both the nanoparticle and nanocrystalline thin films exhibit a reduction in the thermal conductivity. For more detail analysis, the reduction of the thermal conductivity is examined by a simplified phonon gas model on single crystal of bulk bismuth telluride, antimony telluride and bismuth selenide, The analytical model is consistent with the experimental results, and thus we consider that the thermal conductivity is reduced by the strong phonon scattering.
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7

Saeger, W. H. "Adverse Telluric Effects on Northern Pipelines." In International Arctic Technology Conference. Society of Petroleum Engineers, 1991. http://dx.doi.org/10.2118/22178-ms.

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8

Chupin, Sergey A., and Nikolai I. Kobanov. "Telluric line dynamics and daytime seeing." In SPIE Proceedings, edited by Gelii A. Zherebtsov and Gennadii G. Matvienko. SPIE, 2006. http://dx.doi.org/10.1117/12.675249.

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9

Liao, Meisong, Xin Yan, Zhongchao Duan, Takenobu Suzuki, and Yasutake Ohishi. "Tellurite Nanostructured Fiber." In CLEO: Science and Innovations. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/cleo_si.2011.cme5.

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10

Samuel, E. P., Xin Yan, Meisong Liao, ZhongChao Duan, Tong Hoang Tuan, Takenobu Suzuki, and Yasutake Ohishi. "Phase matching in tellurite/ phospho-tellurite hybrid microstructured optical fiber." In SPIE Photonics Europe, edited by Benjamin J. Eggleton, Alexander L. Gaeta, and Neil G. Broderick. SPIE, 2012. http://dx.doi.org/10.1117/12.922216.

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Звіти організацій з теми "Tellurio"

1

FTHENAKIS, V. LEACHING OF CADMIUM, TELLURIUM AND COPPER FROM CADMIUM TELLURIDE PHOTOVOLTAIC MODULES. Office of Scientific and Technical Information (OSTI), February 2004. http://dx.doi.org/10.2172/15007145.

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2

Chu, T. Thin film cadmium telluride, zinc telluride, and mercury zinc telluride solar cells. Office of Scientific and Technical Information (OSTI), October 1989. http://dx.doi.org/10.2172/5657996.

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3

Chu, T. L. Thin film cadmium telluride, zinc telluride, and mercury zinc telluride solar cells. Final subcontract report, 1 July 1988--31 December 1991. Office of Scientific and Technical Information (OSTI), April 1992. http://dx.doi.org/10.2172/10146244.

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4

Chu, T. L. Thin Film Cadmium Telluride, Zinc Telluride, and Mercury Zinc Telluride Solar Cells, Final Subcontract Report, 1 July 1988 - 31 December 1991. Office of Scientific and Technical Information (OSTI), April 1992. http://dx.doi.org/10.2172/5353308.

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5

Trichtchenko, L., and P. Fernberg. Assessment of telluric activity in Mackenzie Valley area. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2012. http://dx.doi.org/10.4095/291562.

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6

Ghandhi, S. K. Research on Mercury Cadmium Telluride. Fort Belvoir, VA: Defense Technical Information Center, August 1989. http://dx.doi.org/10.21236/ada213924.

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7

Mills, Stephanie E., and Andrew Rupke. Critical Minerals of Utah, Second Edition. Utah Geological Survey, March 2023. http://dx.doi.org/10.34191/c-135.

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Анотація:
Utah is a state with diverse geology and natural resources, and this diversity extends to mineral resources that are deemed critical by the U.S. Department of the Interior. Utah’s critical mineral portfolio includes current producers, known resources, areas of past production, and undeveloped occurrences. This report, now in its second edition, summarizes the geographic and geologic distribution of critical minerals within Utah. Utah is notable for being the global leader in beryllium production; being the only domestic producer of magnesium metal; being one of only two states producing lithium (as of publication); and being a byproduct producer of tellurium, platinum, and palladium from the world-class Bingham Canyon mine, which is one of only two domestic tellurium producers. Utah has known resources of aluminum, fluorspar, germanium, gallium, indium, vanadium, and zinc, as well as past production and occurrences of many other critical minerals. In total, Utah currently produces 6 critical minerals, has known resources of 7 more, and hosts an additional 27 as past producers and/or occurrences with limited potential for economic development.
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8

Tan, A. M. Chapter 5: Dislocations in Cadmium Telluride. Office of Scientific and Technical Information (OSTI), May 2018. http://dx.doi.org/10.2172/1440720.

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9

Sapp, Shawn A., Brinda B. Lakshmi, and Charles R. Martin. Template Synthesis of Bismuth Telluride Nanowires. Fort Belvoir, VA: Defense Technical Information Center, December 1998. http://dx.doi.org/10.21236/ada360131.

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10

Zandi, Bahram, Dragica Vasileska, and Priyalal Wijewarnasuriya. Modeling Mercury Cadmium Telluride (HgCdTe) Photodiodes. Fort Belvoir, VA: Defense Technical Information Center, November 2009. http://dx.doi.org/10.21236/ada592435.

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