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You searched for subject:(ZRS). Showing records 1 – 2 of 2 total matches.

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Brno University of Technology

1. Bábek, Tomáš. Automatizace měření Zenerových referencí: Meaurement process automatization of Zener reference.

Degree: 2019, Brno University of Technology

This thesis deals with metrology specialized to DC voltage. In the begining of thesis is explanation of technical terms from metrology, summarization of units from International System and explanation of the standards and its kinds in the context of metrology. Primary standards of DC voltage based on Zener diodes and Josephson effect are described as well. In cooperation with Czech metrology institute in Brno this work is focused on automatization of measuring Zener reference standards (ZRS). Goal of this project is to automatize the measuring of Zener reference standards and its relationship with Josephson voltage system using scanner. To do this, there is a need to find out offsets, that can develop on scanner's channels. There is a theoretical analysis of measuring made on the scanner and their uncertainties. Aim of the solution is computation of scanner channels offsets using everyday automatic measuring the system of Zener reference standards (ZRS). For measuring the LabView was used and for computing the data from measured values the Matlab was used. This thesis should short the time needed when measuring DC voltage references, measure values of DC voltage standards and set the scanner channels offsets. In the end there is a summarization of offsets measured on individual scanner channels. Advisors/Committee Members: Havlíková, Marie (advisor), Nováková Zachovalová, Věra (referee).

Subjects/Keywords: Metrologie; etalon; stejnosměrné napětí; reference; JVS; ZRS; skener; offset.; Metrology; standard; DC voltage; reference; JVS; ZRS; scanner; offset.

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APA (6th Edition):

Bábek, T. (2019). Automatizace měření Zenerových referencí: Meaurement process automatization of Zener reference. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/2000

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Bábek, Tomáš. “Automatizace měření Zenerových referencí: Meaurement process automatization of Zener reference.” 2019. Thesis, Brno University of Technology. Accessed August 05, 2020. http://hdl.handle.net/11012/2000.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Bábek, Tomáš. “Automatizace měření Zenerových referencí: Meaurement process automatization of Zener reference.” 2019. Web. 05 Aug 2020.

Vancouver:

Bábek T. Automatizace měření Zenerových referencí: Meaurement process automatization of Zener reference. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2020 Aug 05]. Available from: http://hdl.handle.net/11012/2000.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bábek T. Automatizace měření Zenerových referencí: Meaurement process automatization of Zener reference. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/2000

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


University of St. Andrews

2. Giagloglou, Kyriakos. The identification and down selection of suitable cathode materials for use in next generation thermal batteries .

Degree: 2017, University of St. Andrews

In this work new novel cathode materials such as transition-metal sulfides, chlorides or fluorides were investigated and studied for their use in lithium ion thermal batteries. All cathodes were synthesized by a solid state reaction in sealed quartz tubes with a duration of firing for 1 week at high temperatures (> 500 °C). All structures of compounds were probed by powder X-ray diffraction and the morphology and shape of crystallites of cathodes were characterized by scanning electron microscopy. The electrochemical properties of the batteries were investigated by galvanostatic discharge and galvanostatic intermittent titration technique at high temperatures (> 400 °C). All the batteries used as an anode Li₁₃Si₄, as an electrolyte LiCl-KCl eutectic and as separator MgO. All the products of the discharge mechanism were confirmed using powder X-ray diffraction and EDX analysis. CoNi₂S₄ and NiCo₂S₄ exhibit two voltage plateaux vs Li₁₃Si₄ at 500 °C, one at around 1.75 V and the second at 1.50 V. Capacities of 350 and 290 mA h g⁻¹ were achieved, respectively. NiS, Co₃S₄ and Co₉S₈ were confirmed as the products of discharge mechanism. ZrS₃ exhibits a single flat voltage plateau of 1.70 V at a current density of 11 mA/cm² and a capacity of 357 mA h g⁻¹, at 500 °C was obtained. A new material, LiZr₂S₄, was identified as the product of the electrochemical process, which can be indexed to a = 10.452(8) Å cubic unit cell. KNiCl₃ was tested at different current densities from 15 mA/cm² to 75 mA/cm² and a high cell voltage, with a capacity of 262 mA h g⁻¹ was achieved at 425 °C. Ni metal, KCl and LiCl were confirmed as the products of the discharge mechanism. Li₂MnCl₄ was tested at the same current densities as KNiCl₃ at 400 °C and a capacity of 254 mA h g⁻¹ was achieved. Mn metal and LiCl were confirmed as the products after discharge. Li₆VCl₈ has a capacity of 145 mA h g⁻¹ and a flat voltage plateau of 1.80 V at 500 °C. NiCl₂ has also a capacity of 360 mA h g⁻¹ and a high voltage profile of 2.25 V at 500 °C. CoCl₂ exhibits a lower capacity of 332 mA h g⁻¹ and lower voltage profile compared to NiCl₂ at 500 °C. CuF₂ and PbF₂ were tested at 500 °C. PbF₂ exhibits a single flat voltage plateau of 1.25 V and a capacity of 260 mA h g⁻¹ was obtained. CuF₂ has a high voltage profile but a voltage plateau could not be obtained. Advisors/Committee Members: Irvine, John T. S (advisor), Connor, Paul (Paul Alexander) (advisor).

Subjects/Keywords: Thermal batteries; Cathodes; CoNi₂S₄; ZrS₃; KNiCl₃; NiCl₂; CoCl₂; NiCo₂S₄; Solid state reaction; High temperature discharge; Li₂MnCl₄; Li₆VCl₈; CuF₂; PbF₂

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Giagloglou, K. (2017). The identification and down selection of suitable cathode materials for use in next generation thermal batteries . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/11563

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Giagloglou, Kyriakos. “The identification and down selection of suitable cathode materials for use in next generation thermal batteries .” 2017. Thesis, University of St. Andrews. Accessed August 05, 2020. http://hdl.handle.net/10023/11563.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Giagloglou, Kyriakos. “The identification and down selection of suitable cathode materials for use in next generation thermal batteries .” 2017. Web. 05 Aug 2020.

Vancouver:

Giagloglou K. The identification and down selection of suitable cathode materials for use in next generation thermal batteries . [Internet] [Thesis]. University of St. Andrews; 2017. [cited 2020 Aug 05]. Available from: http://hdl.handle.net/10023/11563.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Giagloglou K. The identification and down selection of suitable cathode materials for use in next generation thermal batteries . [Thesis]. University of St. Andrews; 2017. Available from: http://hdl.handle.net/10023/11563

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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