Materials Literature
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We have demonstrated quantum Hall resistance measurements with metrological accuracy in a relatively easy to use and compact cryogen-free system operating at a temperature of around 3.8 K and magnetic field below 5 T. This advance in technology is due to the unique properties of epitaxial graphene on silicon carbide (…
Cu(I) complexes often show transitions of distinct metal-to-ligand charge transfer (MLCT) character. This can lead to small energy separations between the lowest singlet S1 and triplet T1 state. Hence, thermally activated delayed fluorescence (TADF) and, if applied to electroluminescent devices, singlet harvesting can…
Significance and Use 5.1 Tensile properties determined by this method are of value in studying the behavior of coatings subjected to environmental stresses, such as those produced by aging and weathering. (See Refs. (1-10).)4 5.2 Tensile properties may v
Group IV elements of silicon (Si) and germanium (Ge) have been served as basic materials for photodetection operated around its bandgap lied above near infrared. In extending the detection range to the mid-infrared (IR) regions, several schemes are proposed. Among these schemes, the alloy of GeSn-based alloy has shown…
Significance and Use 5.1 Test Method D4032 for testing stiffness of fabrics is considered satisfactory for quality control testing. It may also be used for acceptance testing of commercial shipments since the test method has been used extensively in the
Significance and Use 5.1 The results of this method quantify the impact attenuation of playing surface and system specimens under the specific test conditions. 5.2 The test method measures the outcome of impacts performed under specific conditions. It d
Significance and Use 5.1 This test method is designed to produce transverse compressive property data for material specifications, research and development, quality assurance, and structural design and analysis. Factors that influence the transverse compr
Significance and Use 5.1 This test method is used to produce transverse tensile property data for material specifications, research and development, quality assurance, and structural design and analysis. Factors which influence the transverse tensile resp
Significance and Use 4.1 The flash point temperature is one measure of the tendency of the test specimen to form a flammable mixture with air under controlled laboratory conditions. It is only one of a number of properties that must be considered in asses
Scanning tunnelling microscopy (STM) was used to investigate the nucleation and growth of palladium clusters on two different, ultrathin, epitaxial, titania films grown on a Pt$_{3}$Ti(111) surface. The first oxide phase, z'-TiO$_{χ}$, is anisotropic and consists of parallel stripes separated by trenches. Defects (i.e…
Korosi merupakan salah satu permasalahan yang sering dijumpai di dunia kemaritiman, dikarenakan faktor lingkungan yang paling korosif. Kapal merupakan salah satu transportasi laut yang sering mengalami korosi dikarenakan material pembuatan kapal biasanya berasal dari logam paduan. Impressed Current Cathodic Protection…
Komponen struktur lepas pantai yang umumnya sambungan tubular harus diperhatikan proses pengelasannya karena dapat mempengaruhi kekuatan sambungan. Pemanasan lokal pada sambungan tubular dan proses pendinginan yang cepat dapat menyebabkan terjadinya tegangan sisa. Tegangan akibat panas pengelasan ini dapat menyebabkan…
Diese Arbeit ist Teil des Projekts "Innovatives PP-Recycling". Da Polypropylen-Abfall meistens auch Polyethylen enthält, soll hier der Einfluss von Antioxidantien auf die Alterung von Polyethylen hoher Dichte (en: High Density Polyethylene - PE-HD) überprüft. Dabei werden die PE-Proben mit einem Nachgebrauchskunststof…
Pada masa sekarang ini baterai Valve Regulated Lead Acid (VRLA) menjadi salah satu jenis baterai yang telah banyak beredar di pasaran. Baterai VRLA banyak digunakan sebagai Uninterrupted Power Supply (UPS) pada bidang telekomunikasi, perbankan, pengujian dan lain sebagainya. Selain itu, juga digunakan untuk media peny…
Dalam tugas akhir ini melakukan analisis eksperimen dengan variasi arus las (Ampere) yang mengakibatkan perbedaan masukan panas (heat input). Kemudian dilakukan pengujian makroetsa dan pengukuran perubahan distorsi sudut. Analisis selanjutnya melakukan pemodelan numerik dengan software berbasis elemen hingga, dengan m…
Photoreduction of CO2 to useful chemicals have shown promising results from the research on CO2 conversion and utilization. The objective of this study is to synthesize copper and carbon nitride based titanium dioxide nanocomposites for selective photoreduction of carbon dioxide to methanol under visible light irradia…
\n\t\t\t\t\tIn this work, new experimental approaches have been employed to overcome conventional technological difficulties and leading to a new fundamental understanding in the CP failure and buried steel corrosion due to the effects of potential excursions and the complex soil environment.\n\t\t\t\t
The emission of CO2 to the atmosphere from firing conventional fossil fuels has become a major concern for the power industry, due to the enhanced greenhouse effect and global warming predictions. The increasing worldwide demand for electricity production is another issue. The replacement of fossil fuels with increasi…
(Eng) In the manufactured materials with the powder metallurgy technique, it is important to analyse the different manufacturing \nconditions that lead to get a better behaviour of the metallic matrix composite (MMC) against the wear, since it is one \nof the main industry problems largely affecting part of the produc…
A large number of patients with epilepsy have drug-resistant seizures. Therefore, there is a need for the development of new therapies. The purine nucleoside adenosine is an endogenous anticonvulsant that acts to supress neuronal excitability via adenosine A1 receptors. The aim of this thesis was to investigate whethe…