Combining CFD simulations and PIV Measurements to Optimize the Conditions for Dust Explosion Tests
6th International Conference on Safety and Environment in Process and Power Industry (CISAP6 2014), Bologna, ITALY, APR 13-16, 2014
Materials Literature
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SYNTHESIS AND CHARACTERIZATION OF POLY(BUTYL METHACRYLATE) GRAFTED SODIUM SALT OF PARTIALLY CARBOXYMETHYLATED GUAR GUM
An unreported graft copolymer of polybutyl methacrylate (PBMA) with sodium salt of partially carboxymethylated guar gum (Na-PCMGG, DS = 0.497) was synthesized using ceric ammonium nitrate (CAN) as a redox initiator. The reaction variables including concentrations of initiator, nitric acid, monomer and amount of the ba…
Energy Harvesting Technology for Maintenance-free Sensors
Energy harvesting is a technology that gathers energy such as sunlight, artificial light, and vibration and heat from machinery to obtain electric power. Applying this technology to wireless sensor modules in a machine-to-machine (M2M) wireless sensor network will eliminate the need for grid-based power and primary ba…
Ab initio refining of quasibreathers in graphane
A method for refining the profile of quasibreathers in the space of all initial atoms displacements is developed in the framework of the density functional theory. The method is exemplified by the procedure of constructing the discrete breathers in graphane.
Strength monitoring of bridge constructions and features of its application. Part 1. International and domestic experience of monitoring application
The development trend of building systems can be characterized in the following words: sophistication of design and simplification of operation. And the main task of the engineering structure operation is to ensure stability of the functioning structures with respect to the external aggressive impacts. The article con…
CONCRETE MIX DESIGN USING COPPER SLAG AS FINE AGGREGATE
This paper presents the experimental results of an on-going project to produce concrete with copper slag as a fine aggregate. Sustainability and resource efficiency are becoming increasing important issues. Here the potential use of granulated copper slag, a relatively heavy material, as a replacement to sand in concr…
The Science and Function of Nanomaterials: From Synthesis to Application
Due to their unique properties, ordered mesoporous carbon (OMC) materials prepared by nanocasting have raised great attention in recent years. Their synthesis usually comprises multiple cycles of impregnating a porous structure matrix with an aqueous solution of a suitable precursor, such as sucrose or other, often ha…
Effect of Surface Roughness on Rehydration Kinetics of Spaghetti
Surface roughness of spaghetti depends on the die material used during production, and affects the momentarily rehydrated amount of water. The calculated average roughness of spaghetti surfaces, Ra, was evaluated for geometry measurements using a laser microscope. Smoothness of the spaghetti surface decreased, dependi…
Carbon Fibers Derived from Acetylated Softwood Kraft Lignin
A commercial softwood kraft lignin (SKL, Indulin AT) was processed into precursor fibers after acetylation of SKL to different degrees of substitution. The acetylated SKL (Ace-SKL) with higher extent of substitution was extracted with acetic acid resulting in a material that could be melt-spun, but those fibers became…
Derivation of Risk Areas Associated with High-Pressure Natural-Gas Pipelines Explosions Including Effects on Structural Components
A number of high-profile incidents involving transmission pipelines in urban and environmentally sensitive areas have recently focused public attention on pipeline safety. The consequences of incidents that involve large diameter, high-pressure transmission pipelines can pose a significant threat of damage to people a…
Exchange Bias Effect and Magnetic Properties in ${\hbox{La}}_{0.7}{\hbox{Sr}}_{0.3}{\hbox{MnO}}_{3}\hbox{-}{\hbox{NiO}}$ Nanocomposite Films
The magnetic exchange coupling effect has been investigated in La0.7Sr0.3MnO3(LSMO)-NiO nanocomposite films prepared by pulsed laser deposition on SrTiO3(001) and (110) single crystal substrates. The films show an enhanced coercivity field HC= 560 Oe compared with the same thickness single pure LSMO thin film. The com…
Effect of KOH as Stabilizer on Mechanical and Chemical Properties of Liquid Rubber Compound
The effect of KOH stabilizer on mechanical and chemical properties of liquid rubber compound has been examined. Liquid rubber made by mixing stearic acid and zinc oxide as activator, 3,5-di-tert-butyl-4-hydroxy toluene and liquid smoke as antioxidant, CaCO3 as filler, dibenzothiazole disulfide and tetramethyl thiuram…
3D Electrospun Fibrous Structures from Biopolymers
Electrospun three-dimensional (3D) fibrous biopolymers are receiving increasing attention as tissue engineering scaffolds. 3D structures could more closely resemble the stereoscopic architectures of native extracellular matrices (ECMs), and thus could provide similar guidance to signaling and migration of cells. Furth…
Analysis on reactivity initiated transient from control rod failure events of a molten salt reactor
In a molten salt reactor (MSR), the fuel is dissolved in fluoride salt. In this paper, the reactivity worth and reactivity initiated transient of Molten-Salt Reactor Experiment (MSRE) in the control rod failure events are analyzed. The point kinetic coupling heat-transfer model with decay character of six-group delaye…
Molecular Methods in Microbiologically Influenced Corrosion Research, Monitoring and Control
Microbiologically Influenced Corrosion (MIC) is an enormous problem in different industrial sectors with large economical consequences. Although research has been performed on microorganisms associated with MIC, the causative microbes have not been identified yet. Traditional microbiological techniques have been used,…
Biodegradability and Biocompatibility of Polymers with Emphasis on Bone Scaffolding: a Brief Review
Abstract- Biomaterials constitute a class of materials that are used extensively in biological systems, particularly in medical research involving scaffolding material. Various polymeric materials fall within this category, and are largely biodegradable, although various applications and particularly, bone scaffolding…
Effect of C Content on Hydrogen Induced Delayed Fracture Behavior of Mn-B Type Steels
Hydrogen induced delayed fracture behavior of 4kinds of Mn-B type ultra-high strength steel with different carbon content at quenched and tempered status was studied by means of electrochemical cathodic hydrogen charging,hydrogen thermal desorption spectrometry(TDS)analysis and slow strain rate test.The results show t…
Analysis of thermal peculiarities of alloying with special properties
In this paper an algorithm solving the problem of high-speed thermal cooling of molten metal and alloys in order to form an amorphous structure is developed. The rate of alloy cooling was calculated by numerical solution of the problem of heat transfer between melt thin layer and solid metal plate with high heat condu…
Molecular dynamics simulation for the sintering process of Au nanoparticles
The sintering process of gold nanoparticles was investigated using molecular dynamics simulation,and the detailed crystal structure transformation and neck growth mechanisms were identified and analyzed for different particle sizes.It is found that the coalescence of two nanoparticles experiences two stages,which are…
Derivation of TEC and GPS hardware delay based on dual-frequency GPS observations
The ground-based GPS receivers and hence networks enable studies of the ionosphere on a large regional or global scale by measuring the ionospheric TEC from dual-frequency GPS observations. However, originated in the hardware delay of the GPS satellite and receivers, a systematic bias affects the accuracy of the TEC d…