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Relevant bibliographies by topics / Chemická struktura

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Dissertations / Theses

Academic literature on the topic 'Chemická struktura'

Author: Grafiati

Published: 28 June 2021

Last updated: 6 February 2022

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Dissertations / Theses on the topic "Chemická struktura"

1

Olivová, Lucie. "Chemická analýza a-CSi:H a a-CSiO:H vrstev." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-444209.

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Plasma-enhanced chemical vapor deposition is a promising technology for the preparation of materials in the form of thin films with controlled physical-chemical properties, which can be affected by changing input precursors or deposition conditions as needed. In this thesis, plasma nanotechnology was used to synthesize thin films on silicon wafers. Tetravinylsilane was chosen as a precursor for the synthesis of the films. In addition to pure tetravinylsilane, mixtures of tetravinylsilane with argon and mixtures of tetravinylsilane with oxygen were also used as input precursors for film deposit

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2

Ševčík, Ivan. "Systém pro vyhledávání chemických struktur." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2018. http://www.nusl.cz/ntk/nusl-385936.

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This thesis deals with the problem of searching of structures in large chemical compounds databases. The aim is to design and implement an efficient system that supports two basic types of search, which are identity and substructure search. This task is complicated not only by the large number of entries in databases but also by graph representation of chemical structures, for which many algorithms are hard to solve. The thesis will introduce concepts which will prove useful in solving these problems. A web service is also created as a part of the thesis in order to make the database searching

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3

Stehnová, Ivana. "Vliv chemické struktury změkčovadla na vlastnosti bioplastu na bázi polyhydroxybutyrátu." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-438891.

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This master’s thesis deals with plasticization of poly(3-hydroxybutyrate), polylactid acid and their blend. It explores effect of chemical structure of plasticizer on mechanical properties of this polymer blend and on its diffusion from the polymer blend. Syntheses of plasticizers based on oligomeric polyadipates, citrates, lactate and esters of 2 ethylhexanoic acid with poly(ethyleneglycol) were carried out. Molecular weight distribution of synthesized plasticizers was determined using gel permeation chromatography. Poly(3-hydroxybutyrate), polylactid acid and their blend were plasticized wit

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4

Lysáček, David. "Tenké vrstvy polykrystalického křemíku." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-233931.

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The doctoral thesis deals with the structure and properties of the polycrystalline silicon layers deposited on the silicon wafers backside. The wafers are further used for production of semiconductor devices. This work is focused on detailed description of the layers structure and study of the gettering properties and residual stress of the layers. The main goal of this work is to develop two novel technologies. The first one leads to improvement of the temperature stability of the gettering properties of the layers, and the second one solves the deposition of the layers with pre-determined re

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5

Musilová, Iveta. "PROGRESIVNÍ VÝROBNÍ POSTUPY A MODELOVÁNÍ STRUKTUR A VLASTNOSTÍ LITIN S KULIČKOVÝM GRAFITEM." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-233882.

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The thesis is concerned with relationships between progressive technological processes of spheroidal graphite cast iron’s production and their structural properties. The aim of the work is to explain causal relationship between parameters of the proposed manufacturing technology of the iron type given (involving selected variants of modification and inoculation of melt and the parameters of melt crystallization, solidification and cooling down in a mould), their structure and even chemical heterogeneity of elements in this structure. For close specification of presented relationships three-dim

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6

Chmela, Ondřej. "Pokovování polyetylentereftalátu mědí a realizace vodivých struktur." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220081.

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The content of this master’s thesis are methods of pretreatment and coating of the surface of PET to produce conductive copper structure and quality control. Thesis also includes theoretical analysis of these methods. Physical and chemical techniques of surface pretreatment methods are discussed in the theoretical part as well as methods making surface of substrate conductive, the subsequent galvanic copper plating and quality control of coating and testing of the adhesion between layers. The experimental part focuses on two methods of the polymer material surface pretreatments. The properties

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7

Pozdniakovaitė, Natalija. "Žmogaus baltymo p14.5 geno struktūra bei funkcija normaliose ir onkoproliferuojančiose ląstelėse." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060622_093527-75486.

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Human p14.5 perchloric acid-soluble protein (PSP) is a member of family (YER057c/YJGF family) of small proteins. The highly conserved throughout evolution proteins are characterized as multifunctional proteins comprised of ~ 80 homologues exhibiting varying degrees of sequence homology from 38 % to 93 %. The proteins are involved in different cellular pathways of lower and higher eukaryotes. The biological role of these proteins is not yet well characterized. Human p14.5 protein is homologue of UK114 protein extracted from goat liver and characterized as tumor antigen. Antibodies raised agains

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8

Stejskal, Marek. "Vliv chemického složení a tepelného zpracování na strukturu a vlastnosti dvoufázových austeniticko-feritických korozivzdorných ocelí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382114.

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This thesis focused on austenitic-ferritic (duplex) stainless steels and their mechanical and technological properties. The theoretical part includes introduction to chemical composition, structure, heat treatment and properties of these steels. The practical part focuses on influence of casting temperature on technological properties of ASTM A890 Gr4A stainless duplex steel. Furthermore, there is evaluated influence of chemical composition and heat treatment on structure and mechanical properties of different duplex stainless steels.

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9

Kaněra, Miloš. "Výroba odlitků z austeniticko-feritických hyperduplexních korozivzdorných ocelích." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445174.

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The thesis deals with hyper duplex stainless austenitic-ferritic steels and their mechanical and castability properties. The evaluation of resistance to pitting corrosion is divided by PRE values. Steels with a PRE value higher than 48 belong to the group of hyper duplex steels. The theoretical part contains an introduction to the chemical composition, structure and properties of these steels. The practical part is focused on the conditions of tendency to crack castings during solidification and cooling. Furthermore, there is evaluated influence of intermetallic phases on mechanical properties

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10

Czulucki, Andreas. "Struktur-/Eigenschafts-Beziehungen in ternären Übergangs- und Seltenerdmetall-Pniktid-Chalkogeniden." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-33354.

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Ziel dieser Arbeit war es, Beziehungen zwischen den kristallchemischen Eigenschaften und dem beobachteten anomalen Verhalten im spezifischen elektrischen Widerstand (nicht-magnetischer Kondo-Effekt) aufzuzeigen und zusammenhängend zu interpretieren. Verbindungen, an denen dieser Effekt beobachtet wurde, werden aus einem Übergangs-, oder Actinidmetall mit je einem Vertreter der 15. (Pniktogene) und 16. Gruppe (Chalkogene) des Periodensystems gebildet und kristallisieren im PbFCl-Strukturtyp. Da zu ternären Actinidmetall-Pniktid-Chalkogeniden (z.B. ThAsSe, UPS) nur sehr wenige chemische und kris

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