Materials Literature
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Since the palm fiber mattress which made of natural palm fiber and rubber is environmental friendly and has comfortable elasticity, this kind of mattress is very popular between consumers. This paper introduces the material, structure and morphology of the palm fiber layer through observation, analysis, experiment, an…
The wear analysis of chisel-edge ruling tool for diffraction gratings is very complex because of following two reasons that one is the wear distribution on edge after grating ruling is too minute so that hard to find and measured by conventional equipment like microscope, and the other is the effect of wear on the gro…
We report our study of the safety analysis in design of small power reactor which design based on the concept of a long-life core reactor cooled by lead-bismuth eutectic (LBE). The motivation of these studies is in order to design a next generation of reactors, we need to design a type of reactor that has inherent saf…
Nuclear fuel utilization program from front-end up to back-end processes especially spent fuel management have been monitored and safeguarded by the IAEA in order to ensure the utilization of nuclear fuels from all nuclear facilities including nuclear fuel reprocessing facilities are dedicated only for civil and peace…
In this study, bio-glass 45S5 powder was added to pure magnesium powder to produce the magnesium/bio-glass composite by powder metallurgy method. The composite was synthesized based on 5 wt. %, 10 wt. % and 15 wt. % of bio-glass. The composite was investigated from the point of view of its microstructure, physical pro…
Barium - Strontium Hexaferrite and Barium Strontium Titanate are both well established materials which widely used respectively as permanent magnets and piezoelectric devices. As the properties are a structure sensitive, materials structure as well as crystal structure must be properly designed to meet a specific appl…
The widespread use of metal matrix composites as the packaging materials is due to their tailorable thermal conductivity and coefficient of thermal expansion (CTE). For the same reason, silicon carbide reinforced copper matrix (Cu-SiCp) composites are highly rated as thermal management materials in the electronic pack…
The polymerization process and heat resistance of lactic acid-styrene-maleic anhydride copolymer was studied. Lactic acid-polystyrene-maleic anhydride copolymer was prepared with styrene, maleic anhydride and lactic acid by melt copolymerization. Its structure was characterized by Infrared Spectrum (IR), and the therm…
Refinery wastewater treatment is needed especially in the oil-producing arid regions such as oil refineries due to water scarcity. One of potentially applicable process to treat refinery wastewater is a submerged membrane technology. However, the application of submerged membrane systems for industrial wastewater trea…
Rigid and highly water-soluble dinitroxides (AMUPol and PyPol) were developed as polarizing agents for high-field dynamic nuclear polarization (DNP), as described by O. Ouari, P. Tordo et al. in their Communication on page 10858. The use of these agents leads to unprecedented enhancements of the solid-state NMR sensit…
This paper presents a ultra low voltage resonant converter for thermoelectric energy harvesting.A key challenge in designing energy harvesting system is that thermoelectric generators output a very low voltage (-0.3V~0.3V). Therefore, a power converter is used to boost the output voltage of the energy transducer and t…
In this investigation, mullite ceramics were produced by mixing Al2O3 and amorphous silica xerogel (SX) extracted from sago waste ash. The composition was prepared by adding an amount from 0 to 80 mol% of Al2O3 into SX. The samples were dry pressed and sintered in the temperature range between 900°C and 1200°C. Their…
Alkaline precipitate isolated from red liquor of acidic magnesium sulfite pulping exhibited obvious stratification. The properties of the stratified alkaline precipitate were investigated via infrared spectroscopy, ion chromatography, thermogravimetric analysis, and high efficiency liquid chromatography. The sulfonic…
Carbon Nanotube Field Effect Transistors (CNFETs) are excellent candidates for building highly energy-efficient future electronic systems. Unfortunately, carbon nanotubes (CNTs) are highly subject to inherent imperfections that pose major obstacles to robust CNFET digital VLSI: • It is nearly impossible to guarantee p…
CaxNi1-xO was prepared by conventional solid state reaction. The properties of undoped and CaO doped NiO ceramics have been studied. The raw mixture of CaO and NiO were ball milled for 24 hours. The samples were calcined at 1000°C for 2 hours, pressed into pellet shape at 200 MPa and sintered at 1300°C for 4 hours. Th…
Actual and prospective Russian market of polyolefins is analyzed. Growth of polyolefin capacities and triethylaluminium consumption as co-catalyst with Ti-Mg catalysts for polypropylene production in Russian Federation is shown. Quality of Russian and foreign triethylaluminium is compared. Project of modernization of…
A shaft of electric motor fin-fan cooler failed after two years operation. The inspection revealed that the v-belt attached on the electric motor loosed before the failure occurred. Visual investigation results showed the brittle fracture with less plastic deformation. Multiple crack origins observed on the edge of th…
We investigated the structural, optoelectronic and antibacterial properties of two commercial ZnO powder namely White (rubber grade) and Pharma (pharmaceutical grade) in order to study the correlation between the structural-optical property and the antibacterial efficacy. Transmission electron microscopy (TEM) microgr…
The formation of anodic aluminium oxide (AAO) membrane in anodising process has been studied. The anodising process was done in two different type of electrolyte which are single phosphoric acid and a mixture of phosphoric acid and acetic acid. This study was done to determine the influence of this mixed electrolyte t…
Thermal stresses arise in components that are subject to temperature gradients, and the thermal transients associated with engine operations are of particular concern. Residual stresses arise because of nonuniform plastic deformation. They are important because they affect resistance to fatigue and stress corrosion cr…