Materials Literature
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The main focus of this research is to synthesize and to optimize the properties of TiCh nanotube with its final applications as photocatalyst for degradation of dye water. The growth mechanism of self-organized TiCh nanotube formation that were prepared by anodization of Ti foil in an electrolyte containing F* ions we…
Annotation: The theoretical part deals with the comparison of two types of injection molding machines, especially comparison of the injection units. In thesis is described the basic structure and differences in various parts of the drive unit of injection units and measurement of individual injection parameters. In sh…
O presente trabalho trata da solução de uma chama laminar não pré-misturada do tipo jato via simulação numérica. Os combustíveis empregados são metano puro e metano diluído em nitrogênio. Devido ao elevado custo computacional até mesmo para chamas laminares, o uso de abordagens de simplificação de cinética química tor…
Solar energy is one of the most common renewable energy sources in the world. Many people are using them for personal use in their own homes. Previous research experiments have been conducted to attempt at an increase in efficiency and more recently they have been combined with other devices to convert a higher percen…
A szakdolgozatom temajakent elemes beton butorcsalad tervezeset valasztottam, melynek megalkotasa kozben alapvető szempont volt a kornyezettudatossag, az uj-rahasznosithatosag es a multifunkcionalitas. A kulteri design elemek megalkotasahoz egy kevesse ismert anyagot, a Durisolt vagy mas neven fabetont valasztottam, d…
摘要： 为解决报废汽车及家用电器的破碎回收问题，对轻薄型回收金属摆锤式破碎过程进行研究，结果发现撕裂与撕拉为其主要破碎模式；利用自制工具对轻薄型回收金属进行撕拉试验，获得撕拉破碎模式下材料的载荷-位移曲线，期间试件预穿刺孔舌形化直边两侧裂纹历经了多次失稳、扩展和松弛，舌形化直边产生了多次局部折叠变形，试件整体发生了横纵两方向的折弯，且大块轻薄型回收金属碎片被从其母体上撕拉下来；通过计算，得到轻薄型回收金属的撕拉破碎功及各种弹塑性弯曲功；与裤腿撕裂试验结果比对可知，虽然撕拉的能耗较撕裂稍高，但易于建立的边界条件及大块的撕拉碎片更有利于降低破碎过程的综合能耗；研究结果为报废汽车及家用电器的破碎回收利用提供一定的理论依据。
N-((4-chlorophenyl)(morpholino)methyl)urea (CPMU) was synthesized and their influence on the inhibition of corrosion on mild steel in 1.0 M hydrochloric acid solution has been investigated by weight loss measurements, potentiodynamic polarization and scanning electron microscopic techniques (SEM). The result of weight…
Im Rahmen der vorliegenden Arbeit konnten sowohl konzeptionelle Beitrage zur Berechnung der magnetischen Anisotropie von mehrkernigen Ubergangsmetallkomplexen mittels DFT-Methoden geleistet, sowie zwei Molekulsysteme eingehend untersucht werden. Auf der Ebene der Methodenweiterentwicklung konnten die Matrixelemente de…
Thesis (Ph.D., (Food Science and Technology))--Prince of Songkla University, 2015
Stable silver nanoparticles were synthesized with a passivating monolayer of 4-methylpiperazine-1-carbodithioic acid (4-MPipzcdtH) - derivative of heterocyclic amine, 1-methylpiperazine (1-MPipz). Particles were characterized by elemental analysis and energy dispersive analysis of X-rays (EDAX). SEMimages of powdered…
Bakalařska prace je zaměřena na výzkum hydrotermalni Ag – Pb – Zn mineralizace v Jezdovicich u Třestě. Pro studium dane problematiky byla provedena chemicka analýza zdejsi mineralizace na mikrosondě, dale pak makroskopicke studium vzorků a předevsim mikro charakteristika zhotovených nabrusů. Zdejsi mineralizace je tvo…
摘要： 采用钨极惰性气体保护(Tungsten inert gas, TIG)焊辅助激光熔钎焊方法，实现了5A06铝合金/镀锌钢异种金属涂粉的对接熔钎焊连接，观察分析对接接头焊缝成形、界面微观结构，并测试接头的力学性能。结果表明：选择合适的焊接参数，采用电弧辅助激光熔钎焊方法能够得到良好的铝/镀锌钢对接接头，辅助电弧使得铝合金母材的熔化量显著增多，提高了液态金属在钢背面的润湿铺展，促进了铝/镀锌钢对接接头底部的界面反应。钎焊界面上反应形成不均匀分布金属间化合物层，厚度为3～12 μm，其厚度随着焊接电流的增加而增大。通过能谱(Energy dispersive spectrometer, EDS)和X射线衍射(X-ray diff…
In my research, there are two structures for silicidation by solid state reaction. The lateral structures and full coverage of NWs are utilized to study the formation and electrical properties of NiSi2 NWs. By the lateral structure, we can know that NiSi2 wins as the first phase, but the length of NiSi2 is not long en…
Single crystal of 4Sodium substituted 1,4 but-2-ene-di-oic crystals has been grown by slow evaporation method. Single crystal x-ray diffraction analysis shows that it belong to Triclinic system. The presence of functional groups was confirmed by Fourier Transform Infrared Spectroscopy. Optical behavior has been studie…
This study aims to improve antibacterial titanium coating which enhanced osseointegration at the same time. Titanium (Ti) substrates covered with antibacterial polyethylene oxide (PEO) fibers which have functionalized with hydroxyapatite (HA) particles to improve osseointegration and their characterization studies wer…
Electromagnetic (EM) shielding is one of the most widely used electromagnetic interference (EMI) countermeasures in electromagnetic compatibility (EMC) applications. With the increasing reliance of wireless communications, EM shielding begins to find its application in architectural shielding to block out undesired wi…
Adsorption and Separation of 85Sr, 152+154Eu and activation product of 137Cs from radioactive waste (radioactive waste our Laboratories from Egyption (ET-RR1) research reactor) was achieved, these elements are considered as hazardous materials adsorbed using polyaniline stannic silicomolybdate was developed. Interacti…
This paper presents some studies about the preparation by matrix-assisted pulsed laser evaporation (MAPLE) of mixed layers based on two arylenevinylene oligomers, 1,4-bis [4-(N,N′-diphenylamino)phenylvinyl] benzene (L78) and 3,3′-bis(N-hexylcarbazole)vinylbenzene (L13) as donor and buckminsterfullerene (C60) as accept…
Estudar o comportamento dos aminoÃcidos quando sujeitos a condiÃÃes extremas de temperatura à o objetivo principal dessa tese. Na L-valina (C_5 H_11 NO_2) foram realizados experimentos de absorÃÃo infravermelha, enquanto que experimentos de espalhamento Raman foram realizados nas fases α e β do Ãcido L-glutÃmico (C_5…
Beech chips were pre-extracted with hot water and green liquor prior to kraft pulping. The total pulp yield of green liquor pre-extracted chips equivalent to 10 % wood weight was approximately the same as that from the original chips, while the pulp yield from hot water pre-extracted chips was lower by 4.2 %. Effectiv…