Materials Literature
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This study is about the important field of energy development-solar cell. Solar cell is varied, among them the multi-junction tandem solar cell is the most efficient. This thesis investigates the research and fabrication of triple-junction tandem Ⅲ-Ⅴ compounds solar cells. The main topic is substitute of current singl…
Orientador: Prof. Dr. Vitoldo Swinka Filho
Este trabalho apresenta a obtenção de polímeros sintetizados a partir do biodiesel epoxidado do óleo de oliva (EEO) e soja (EES) utilizando anidrido ftálico (PH) como agente reticulante e 2-metil imidazol (2MI) como iniciador. Os materiais utilizados no processo de polimerização foram analisados por ressonância magnét…
Työssä tutkittiin polymeerisen ultrasuodatuskalvon modifiointimahdollisuuksia prosessiolosuhteita muuttamalla. Kalvon modifioimisella pyritään sen suodatusominaisuuksien muuttumiseen, joka voi lisätä kalvon käyttökohteita ja parantaa kalvon soveltuvuutta tiettyjen yhdisteiden suodatukseen. Hydrofiilisiä, tiukkoja poly…
During their lifetime, crystalline photovoltaic modules are subjected to mechanical loads and thermal cycling. Both can cause cyclic changes of the distance between the cells. For this reason, copper interconnect ribbon, which forms the mechanical and electrical connection between consecutive cells, is subject to cycl…
Design, Synthesis, and Photophysical Properties of Corannulene--based Organic Molecules
The Rhacomitrium heterostichum complex in British Columbia consists of four species and five varieties: R. "laxum", R. heterostichum, R. heterostichum var. affine, R. sudeticum, R. sudeticum var. macounii, R. brevipes, R. brevipes var. "laevis", var. "eramulosum" and var. "microcarpiformis". Within each of these taxa…
Cobalt nanoparticles were synthesized using reduction of 60Co gamma source with dose range 10-50 kGy in the presence of polyvinyl alcohol (PVA) polymer as a capping agent. Radiation synthesis has the advantages of without the use of reducing agent and catalyst and the cobalt nanoparticles aggregated immediately upon i…
We have grown HfO2 on Si(001) by atomic layer deposition (ALD) using HfCl4, TEMAHf, TDMAHf and H2O as precursors. The early stages of the ALD were investigated with high-resolution photoelectron spectroscopy and x-ray absorption spectroscopy. We observed the changes occurring in the Si2p, O1s, Hf4f, Hf4d, and Cl2p (fo…
Tesis (Lic. en Astronomía)--Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física, 2011.
Hydrogen titanate (H2Ti3O7) nanotubes and nanoribbons were synthesized by hydrothermally ageing a commercial titanium dioxide powder (Aeroxide P25) under alkaline conditions at temperatures between 150 and 200 degreesC, followed by acid washing. The effect of calcination, at temperatures ranging from 200 to 800 degree…
We have studied about molecular motions and proton dynamic of water molecules confined within single wall carbon nanotubes by 1H and 2H nuclear magnetic resonance in the temperature range 100k to 300k. This was done across so called ice-nanotube formation. We observed that above 220k the water is in a liquid like stat…
An investigation of pseudoelasticity and the strain memory effect was carried out on the β’-bcc phase of alloy of composition Cu-33Zn-3.4Sn. Pseudoelasticity was found to occur by a stress-induced, martensite transformation. Maximum pseudoelasticity occurred at the Af temperature and was ~8% for single crystal specime…
Master of Science in Chemistry. Thesis (M.S)--Eastern Mediterranean University, Faculty of Arts and Science, Dept. of Chemistry, 2011. Supervisor: Prof. Dr. Huriye İcil.
Bakalářská práce se zabývá hodnocením drsnosti povrchu po vysokorychlostním obrábění.Teoretická část, se zabývá problematikou vysokorychlostního obrábění a drsnosti povrchu, spolu s uvedeným návrhem experimentu.V experimentální části jsou uvedeny naměřené a vypočtené hodnoty drsnosti povrchu, v závislosti na navrženýc…
In this study, we have used a seed-mediated growth approach to prepared monodispersive Au–Pd core–shell heterostructures by pre-synthesized 50 nm Au octahedral nanocrystals developed previously. Systematical shape evolution from cubic to truncated cubic, cuboctahedral, truncated octahedral and octahedral structures ar…
分别采用两种不同型号的液晶高分子（LCP）Vectra A950（LCPVA）及Novaccurate（LCPNV）与聚酰胺6（PA6）熔融共混制备PA6／LCP／GF共混物。研究LCP含量及型号对LCP／GF／PA6共混物聚集态结构及力学性能的影响。结果表明：玻纤在复合材料中具有良好的取向，并且呈现出典型的“皮芯”结构；其中合NV组份中玻纤与PA6的界面结舍较好，同时LCP也有自身形成微纤结构的趋势。两种LCP对LCP／GF／PA6共混物的拉伸强度影响不大，而弯曲强度和冲击强度随LCP含量的增加有先增加后减小的趋势，其中，当VA含量为10份时弯曲强度达到最大值，为114．9MPa，比纯PA6提高了36．8％，当NV含量为10份时…
A number of solid substances ware examined by nuclear magnetic resonance methods with a view to investigating possible molecular motion. The possibility of using the adiabatic rapid passage technique as a method for investigating the molecular motion in the solid state was studied. Two systems, namely benzene and fura…
Solid-State Circuit Breakers (SSCBs), or Contactors, are critical components in next generation electric aircraft, and must be small in size, fast in response, and have high reliability. Silicon Carbide (SiC) semiconductor switches provide a series of improvements over traditional silicon-based breakers in both electr…
本論文係有關NaYF4:Yb,Er/二氧化矽/阿拉伯膠近紅外光上轉換複合奈米粒子之製備及作為兼具螢光顯影與藥物釋放功能之生醫奈米載體的應用研究。關於其製備，首先利用奧士瓦熟成法合成NaYF4:Yb,Er奈米粒子，接著以溶凝膠法在逆微胞系統中被覆二氧化矽奈米殼層在NaYF4:Yb,Er奈米粒子表面，製得NaYF4:Yb,Er-SiO2核殼型奈米粒子(NaYF4:Yb,Er@SiO2)。接著，以(3-氨基丙基)三乙氧基矽烷將二氧化矽表面修飾成具有氨基，最後再將阿拉伯膠(GA)以碳二醯胺活化法接枝在氨基化之二氧化矽表面，製得阿拉伯膠修飾之NaYF4:Yb,Er@SiO2複合奈米粒子(NaYF4:Yb,Er@SiO2@GA)。透過利用穿透…