Materials Literature
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Saccharides, a class of organic materials, are potential candidates for nonlinear optical applications. Ascorbic acid is a sugar acid and is classified as a monosaccharide. The molecule of ascorbic acid has two chiral centers and, therefore, four stereoisomers. Among them, two are naturally occurring compounds; L-ascor…
The work is devoted to experimental research of parameters of prismatic aggregate at static loading. The data of experimental researches allow to use them in the design of three-layer structures in space, aviation techniques, as well as in construction and machinery that is of interest for technical workers and design…
Tato bakalářská práce se zabývá studiem vlivu zrnitosti prášků na krystalizace ve \nsklovitém As2Se3. V teoretické části je popsán vznik skla, krystalizace, nukleace, rychlost a \nmechanismus růstu krystalů a metody sledování růstu krystalů. Experimentální část práce je \nzaměřena na mikroskopickém sledování růstu kry…
The goal of this rapport is to present an overview of the different hydrogen storage technologies, currently available for industrial application or at earlier stages of development. In order to identify the water and mechanical work requirements for compression of hydrogen, flow sheets of several compression process…
A derivation of the Thiele equation describing the motion of the magnetic skyrmion with drift velocity v\n= (vx ,vy ) in the presence of a spin Hall current injected in the heavy metal (tungsten) and of the interfacial\nDzyaloshinskii–Moriya interaction is given. The spin-transfer torque contribution and the confineme…
Glavni namen diplomske naloge je na podlagi ultrazvocnih meritev formiranja strukture materialov s cementnim vezivom ugotoviti vpliv mehanskega poseganja v strukturo v smislu obcutnega vplivanja na vezanje in zgodnji razvoj trdnostnih karakteristik materiala. Proucevali smo predvsem spremembe mehanskih lastnosti: elas…
The amount of radioactivity in soils varies widely and man is continuously being exposed to radiation. This study presents result of outdoor absorbed dose rates and estimated effective dose from the soils samples collected from different locations around a superphosphate fertilizer factory in Nigeria. An efficiency an…
Recent developments in nano-ligno-cellulose production and the crill characterization technique
Bostadsbolaget Mitthem AB ager 11 tvavaningshus med lagenheter pa Uppsalavagen i Sundsvall. Sparfilmsmatningar har visat pa radonhalter over gransvarden i flertalet lagenheter, vilket ocksa konstat ...
The infrared detectors consist of two main parts that are optical elements and sensing elements. The sensor component is generally formed by semiconductor materials that can detect Infrared (IR) light which cannot be seen by human eye. Mercury Cadmium Telluride (MCT, HgCdTe) is widely used as a sensor material for thi…
Il computo dello Stress Intensity Factor (SIF) con il metodo della funzione peso è relegato al calcolo di un integrale che vede come dominio di integrazione la zona interessata dalla cricca e come funzione integranda il prodotto fra il campo di tensione, valutato in assenza di cricca, e la funzione peso che risulta l…
Práce s názvem „Korozivzdorné oceli pro součásti parního sterilizátoru“ je zaměřena na volbu optimální korozivzdorné oceli pro dané zařízení, v našem případě vyvíječe čisté páry. V práci jsou uvedeny hlavní mechanismy a druhy koroze. Jsou zde rozděleny a charakterizovány jednotlivé typy korozivzdorných ocelí. Volba ma…
Przedstawiono badania nad szlifowaniem próbek płaskich wykonanych ze stopów niklu – Inconel 600 i Monel 400. Próbki szlifowano ściernicami TGP i XGP z minimalnym wydatkiem cieczy obróbkowej (MQL). Użyto dwa rodzaje cieczy: Ecocut Micro Plus 82 i Biocut 3000. Opisano wpływ warunków obróbki na wartość stycznej siły szli…
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During the present thesis we dealt and focused on the subjects of reinforced concrete, corrosion of metals, protection of concrete against corrosion and protection methods for concrete. Concrete is a complex material which consists mainly of cement, aggregate and water. The strengthening of concrete, usually with stee…
본 연구에서는 유황폴리머에멀젼 (SPE)을 반강성 포장용 주입재의 아크릴레이트 대체재로서 활용가능성과 성능향상재료 (PVA섬유)에 대한 역학적 성능과 내구성능을 평가하였다. 평가결과, 반강성 포장재의 충전률은 섬유의 혼입률이 증가함에 따라 충전률이 저하되었지만, 모든 배합조건에서 평균 92~94%로 측정되어 목표 성능인 90%를 만족하였다. 반강성 포장재의 마샬안정도 값은 최대 25.4kN으로 측정되어 반강성 포장재의 국내 기준인 5.0 kN 보다 약 4.7배 우수한 것으로 나타났다. 반강성 포장재의 동적안정도 평가결과, 휠 트래킹시험에 따른 변형저항성은 SPE를…
One way of increasing the filler content in paper without sacrificing the mechanical properties is based on the modification of the filler surface with compounds that promote a better bonding with the cellulosic fibres. In this context, sodium alginate was deposited at the surface of precipitated calcium carbonate (PC…
V prací je zpracována literární studie na téma plastů a vstřikování plastů včetně nástrojů pro vstřikování. Následuje praktická část návrhu výroby plastového krytu vrtačky. V rámci návrhu výroby jsou vypočteny výrobní parametry, navržena konstrukce vstřikovací formy, zvolen vstřikovací stroj a technicko ekonomické hod…
This dissertation reports the synthesis, characterization and processing of Mn-doped ZnO thin films for their potential use in the next generation spintronics devices. The idea of spintronics prompted the evolution of a new class of materials known as diluted magnetic semiconductors (DMS), where a fraction of atoms in…
Layered double hydroxides (LDHs) have been prepared by co-precipitation method containing different ratios of Mg²⁺, Zn²⁺ and Al³⁺ in the brucite layers and different ions of NO₃²⁻ and CO₃2⁻ in the interlayer was used as an adsorbent for the removal of anionic dyes from aqueous solution. LDHs were characterized by used…