Materials Literature
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Temperature can strongly affect the probabilities of certain neutron interactions (fission, capture, scattering, etc.) with materials. These probabilities are referred to in the nuclear community as ‘cross sections’ and are used as inputs for computer simulations. During the lifetime of a nuclear reactor, the core and…
Polyhydroxyalkanoates (PHAs) are a group of microbial biodegradable polymers having potential to replace synthetic plastics. Several factors are known to influence PHA biosynthesis e.g., bacterial strain used, carbon and nitrogen sources provided, culture conditions, etc. These factors interact with each other during…
Proteins are part of all cells of living organisms. Therefore, they are the focus of various research, especially those aiming to get a better understanding of the human body. The spatial structure of a protein is examined using four distinctive structure layers. This bachelor thesis particularly deals with the second…
In this study, pure copper was used for the bipolar plates of the direct methanol fuel cells (DMFCs), and the anode and cathode channels were manufactured on the plates in order to reduce the electrical resistance and the volume of the DMFCs. To prevent the corrosion of the copper plates by the methanol fuel, nickel (…
Aniline has been copolymerized in the presence of substituted aniline as comonomer to prepare conducting copolymer of poly(aniline-co-o-methoxyaniline) type via. the chemical oxidation polymerization route. The chemical structure and conducting behaviour are studied by means of Fourier transform infra-red (FTIR) spect…
Harmonic is becoming more and more important day by day in the emerging power system. It is one of the most critical power quality parameters. An accurate assessment of harmonics is the most fundamental requirement in the field of harmonic analysis. It’s because it forms the basis for other harmonic-related issues, su…
Core yarn in DREF 2 Friction spinning system has got pronounced role in not only control the yarn breakages, but significantly affect the twisted structure of the yarn. The yarn formation mechanism between two perforated spinning drums of the system justifies the formation of false twist in the core yarn placed at the…
Medium Density Fibre (MDF) Board is appropriate for many applications in furniture industry due to its better machinability, dimensional stability and surface characteristics. Drilling is the unavoidable machining operation during the assembly of MDF, which plays a major role in the acceptance of the finished product.…
This work presents the synthesis and evaluation of multi-walled carbon nanotubes (MWCNTs) reinforced silver-matrix nanocomposite materials that were prepared by a chemical route commonly known as Electroless Coating / In-Situ reduction. The silver nitrate was used as a starting material and was reduced to silver over…
Cadmium chloride (Cd) is a toxic agent that is also a potent immunotoxin. The cadmium and dexamethasone (Dex) induce apoptosis on immune cells by different speed. While the different effects of Cd and Dex treatment and the changes due to each of them were not evaluated in vivo conditions. In this study, the morphology…
Abstract Small amounts of anion impurities (e.g. Cl), which are incorporated during the synthesis of ceramic powders, can affect the properties andmicrostructure of the final sintered ceramic. The effect of anion impurities is a little studied and poorly understood phenomenon. In this worka combination of STEM-EDX anal…
This paper is a file of analytical information with intent to summarize so far known knowledge and to anticipate new development and possibilities of improving oxygen converter lining. Technological methods currently used in steel production put high requirements for the quality parameters of used refractory building…
In this present work, an investigation of a magnetic projector lens with tapered- cylindrical pole pieces has been designed and constructed, consisting of two double magnetic lenses. By using this lens a rotation and distortion free images have been obtained, after the electron-optical properties have been computed by…
The thermo-electric power S is calculated as a function of temperature for Bi2Sr2Ca1-xYxCu2O8+δ and Bi2Sr2Ca2-x SmxCu3O10 superconducting samples. This work is performed in terms of the reporetd data based on the considered samples; and with the help of the two band model. It is found that the measured values of S fit…
The present paper addresses the experimental and theoretical description of the dynamic behavior of non- Newtonian (shear-thinning) droplets impacting onto smooth and micro-patterned heated surfaces. The shear-thinning liquids are mixtures of water+xanthan gum prepared with different concentrations of the gum, namely…
The purpose of this paper is to present a methodology for optimizing the geometry of the LED (light emitting diode) secondary lens. The research objective is to uniform the illumination distribution on a target plane for nonimaging application. In order to achieve this, a software that simulates ray tracing is used, i…
Abstract—The proposed PV inverter overcomes various problem of present PV inverter, due to the inclusion of Quasi Z network and matrix converter in the PV system. Combination of these circuit in PV system has various significant advantages such as voltage and frequency doublers capability, reduced harmonic content wit…
elds. We further combine the electron dynamics calculation in the TDDFT with the Maxwell’s equation for electromagnetic elds so as to achieve simultaneous descriptions of both micro-meterscale laser-eld propagation and nanometer-scale electron dynamics induced by the elds. We call it \Maxwell + TDDFT multiscale simula…
The conventional method of peripheral nerve gap treatment is autografting. This method is limited. In this study, an aligned nanofi brous graft was formed using microbial polyester, Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). The regenerative eff ect of the graft was compared with that of autografting in viv…
We prepared nanofiber textiles doped Preventol A8, boric acid, Wocosen 50 TK and other by electrospinning on device Nanospiser LB 500 at Nanocenter of civil engineering at CTU. The textiles are stabilized by thermal treatment at 140°C and by chemical method by methanol. As a model organism was used Aspergillus niger,…