Materials Literature
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In this study, fire resistance of a fireproof material sprayed upon an immersed tunnel was experimentally evaluated under HCinc and ISO834(duration of 4 hours) fire scenarios. Under HCinc fire scenario, the maximum inner temperatures of a concrete specimen at the depth of 0, 25 and 50 mm from the interface between the…
The article describes the methods of producing and testing the Inconel 740 nickel alloy in as-cast state. An assumption has been made that the obtained alloy should be characterised by a normative chemical composition and mechanical properties similar to those that are obtained in the process of plastic forming. The a…
The results of mechanical properties and microstructure of low-carbon copper bearing steel after quenching and tempering at temperature range of processing precipitation of particles rich in copper and particles intermetallic phase are presented in this paper. When content molybdenum increases in tempering temperature…
Cavitation is described by formation and collapse of the bubbles in a liquid when the ambient pressure decreases. Formed bubbles grow and collapse by change of pressure, and when they collapse, shockwave by high pressure is generated. In general, bubble behavior can be described by Rayleigh-Plesset equation under adia…
Spinal cord injury results in loss of motor function and sensory perception. A myriad of obstacles prevent axonal regeneration and ultimately functional recovery in those afflicted with spinal cord injury. Combinatorial strategies addressing many of these obstacles simultaneously have shown promising results. Laborato…
The ability of small heat-shock proteins (sHsps) such as alphaB-crystallin to inhibit the amorphous (disordered) aggregation of varied target proteins in a chaperone-like manner has been well described. The mechanistic details of this action are not understood. Amyloid fibril formation is an alternative off-folding pa…
Abstract : As the environmental regulation of vehicle emission is strengthened, investigations for NO x and PM reduction strategies are popularly conducted. Two current available technologies for continuous NO x reduction onboard diesel vehicles are Selective Catalytic Reduction (SCR) using aqueous urea and lean NO x…
The development of overload management systems for distribution transformers offers new opportunities for improving the reliability of distribution systems. It allows network planners to optimize the system resource utilization and investment cost. Such an improvement in the flexibility of the distribution network is…
The experimental verification of the generalised two-parametric fatigue characteristics has shown good compatibility between the calculation and the fatigue life examination results with use of constant amplitude load and variable asymmetry coefficients, according to the model based on the Haigh diagram conception. Th…
A new method for pre-impregnating nickel coated carbon fiber with a thermoplastic polymer to make towpreg, similar to a recently developed coating-line by João P. Nunes et al and a new electrically conductive thermoplastic are developed. A melted bath was used to help mitigate health concerns and waste for dispersion…
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ABSTRACT We investigated the burning process of the virgin hair and straight permed hair using thermal analyser and scanningelectron microscopy. After the thermal analysis, we found that weight started to change from 100�C. Whereas straightpermed hair has weight decrease rate of 2.6% higher than the virgin hair till 2…
The up-to-date compressed air drying methods for necessities of different industrial branches are covered. In particular, the approved, reliable method of compressed air drying is suggested. It has proved its solvency at the enterprises of open joint-stock company “RZD”.
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Corrosion inhibitors can be introduced through concrete pores under the action of an electrical field. In this work, migration of corrosion inhibitors from the surface of the concrete, simultaneously to Electrochemical Chloride Removal (ECR), is considered. Two methods are proposed: 1) Connection of rebar as cathode f…
The phosphors doped by La with 0.1 wt%, 0.3 wt%, 0.5 wt%, and 1.0 wt% concentration were prepared by sintering at for 90 minutes in N2 atmosphere. The phosphors were ground in powdered form and were grouped in size, then the samples had been exposed to low energy X-ray and UV light. The TL glow curves were measured by…
The European Integrated Tokamak Modelling Task Force (ITM-TF) is developing a new type of fully modular and flexible integrated tokamak simulator. This simulator allows assembling elementary physics modules together, combining them graphically into arbitrarily complex and flexible physics workflows. The “workflow” is…
A construction process of hydrogen peroxide supply system was investigated to use hydrogen peroxide as an oxidizer of bi-propellant liquid rocket engine. To use hydrogen peroxide as a rocket propellant, it has to be in high concentration over 90%. It is very important to make the supply system free of pollutants, beca…
Several novel computer simulation models were developed for predicting electrical, mechanical, thermal and diffusion properties of materials with complex microstructures, such as composites, semi-crystalline polymers and foams. A Monte Carlo model for simulating solvent diffusion through spherulitic semicrystalline po…
Radioactive materials coming from nuclear power plants are released to the environment during operation and decommissioning. The main quantity of radioactivity inside a nuclear power plant is due to neutron activation. Beside this, radioactivity is due to contamination of materials and systems which have been in conta…