Search results

Electrical insulation is a main factor determining the reliability and service life of high-voltage parts of electrical machines.
However, this formula cannot take into account all the factors that affect the electrical insulation, and is very approximate.
Mica is non-flammable, has good dielectric properties and very high dielectric strength up to 6.108 V/m.
Electrical insulation properties are due to magnesium hydrosilicate, muscovite or phlogopite.
Rotter Mica products, properties, developments, and applications.

From a production point of view it is also very important that the time needed for slurry production is as short as possible, or more specifically short enough not to negatively affect the overall production cycle time.
In a study of the tensile properties for Mg-Al alloys containing up to 15% Al, it was shown that an alloy with 12% Al reached a maximum elongation at fracture in the range of 1.5-2.5% depending on microstructure coarseness[8].
Consequently, there is some other factor causing these significant differences, which is still to be understood.
It is interesting to see how the difference between the calculated liquidus temperature and slurry temperature is affected by the Al-content; see Fig. 6.
Effect of microstructure on mechanical properties of as-cast Mg-Al alloys.

Recent experiments [1] showed that adding Mn to an Fe-Cu alloy leads to a notable slowing down of coarsening process, that is, to a sharp increasing of density and reducing the sizes of precipitates, which improves the mechanical properties and hinders embrittlement [2, 4].
For the large g2 ≫ 1 used, the cut-off factor Fc(k) is reduced to the gaussian exp (−k2l2/2) with lc = ga where a is the lattice constant.
Because of that, relaxation times for the main alloy component distributions are by a factor 1/cvi slower than the times of relaxation of vacancies at the given {cpi} to their ``quasi-equilibrium'' distribution cvi{cpi}.
The resulting effective mobilities are similar to Eq. (10) but the factor Bij is replaced by some other averages allowing for the configurational dependences of γpv [11].
At the same time, for the given s, lowering temperature affects microstructure more strongly than increasing concentration.

In these models, the influence of the permeability of rock on the fracture propagation is assumed to be practically negligible. 2 We employed the Flow-coupled Rock Failure Process Analysis code (F-RFPA 2D ); The results indicate that both the rock heterogeneity and the permeability affect the fracture initiation and propagation significantly, and that the simplistic premise that rock is homogeneous and impermeable may apply to limited, but not general cases in hydraulic fracturing. 2.
The mechanical parameters, such as Young's modulus, the strength, and the permeability coefficient, etc., of the elements are all randomly assigned following a Weibull's distribution law to account for the inherent variabilities in rock property [11].
The homogeneity indices m=1.5 denote parameters of distribution, The mechanical parameters of the rock samples are shown in Table1 Table1 Mechanics Parameters Mechanics Parameters value Loading fashion value homogeneity index ( m) 1.5, 2, 3, 6, 20 residual intensity coefficient ( 'λ=f cr/ fc = f tr/ ft ) 0.2 Young's modulus (E / MPa) 33800 the coefficent of pore-water pressure (α) 0.1 internal friction angle ( ϕ /°) 30 permeability coefficient (K/ m/d) 0.001 compressive strength( f c/ MPa) 220 mutation coefficient of permeability (ξ ) 20 ratio of tensile and compressive ( f c/ ft ) 10 Coupling coefficient (β) 0.05 Poisson's ratio (­) 0.25 3.
Therefore, the location and orientation of the fracture initiation is unpredictable. 3.2 Hydraulic fracture path As we know, the analysis of hydraulic fracture is plagued by the question of the validity of conventional fracture parameters such as critical stress intensity factor.

Once the weight exceeds the allowable value, some outfitting may not be assembled and it will affect the manufacturing process and security directly.
Many factors should be considered to allocate tolerances to the framing and outfitting items.
INSTRUMENTATION IN2 INSTRUMENT EQUIPMENT IN3 IN-LINE INSTRUMENTATION IN4 FILED INSTRUMENTS IN5 INSTRUMENT CABLES IN6 INSTRUMENT BULKS LC Loss Control LC0 LOSS CONTROL - DRILLING LC1 MISC.LOSS CONTROL LC2 SAFETY EQUIPMENT LC3 FIRE PROTECTION SYSTEM LC4 LOSS CONTROL BULKS MC Mechanical MC0 DRILLING EQUIPMENT MC1 MISC.MECHANICAL MC2 PROCESS PUMPS MC3 PROCESS - COMPRESSORS MC4 PROCESS- VESSELS MC5 PROCESS EXCHANGES MC6 PROCESS MISC.EQUIPMENT MC7 POWER GENERATION EQUIP MC8 MECHANICAL HANDLING MC9 SPARE MC10 MACHINERY EXHAUSTS MC11 UTILITIES - MISC.EQUIPMENT MC12 UTILITY - PUMPS MC13 UTILITY - COMPRESSORS MC14 UTILITY - VESSELS MC15 UTILITY - EXCHANGERS MC16 UTILITY - EQUIP PACKAGES ME Materials ME0 DRILLING ME1 MISC.MATERIALS ME2 PAINT ME3 ANODES PI Pipelines and Risers PI0 PIPING - DRILLING PI1 MISC.PROCESS GAS PIPING PI2 PROC GAS - 1.5" & BELOW PI3 PROC GAS - 2" - 3" PI4 PROC GAS - 4" - 6" PI5 PROC GAS - 8" & ABOVE PI6 MISC.PROC LIQUIDS PIPING PI7 PROC LQDS - 1.5" & B PI8 PROC LQDS - 2" -
TELECOMMUNICATION TE2 TELECOMMUNICATION BULKS WE Weight Engineering WE0 MISC CONST.N & OPER WE1 OERATORS ALLOWANCE WE2 TEMPORARY EQUIPMENT WE3 DRILLING Futhermore, some function parameters are required for the management, such as: (1) Weight condition Weight condition is an importmant property of item.

Recent research has shown that many of the nano materials' properties depend on particle size in the nanoscale regime [17].
Moreover, the structure of nanomaterials also results in novel and significant changes in physical and chemical properties; for example, coercive force in magnetic materials can be changed, surface reactivity and catalytic capability can be amplified, and mechanical strengths can be increased by a factor of five or more [18-23].
Also, their huge specific surface area allows nanoparticles to be considered as surface-produced on the macroscale, thus affecting their bulk properties.
For certain spherical nanoparticles in the range of 3 nm, about 50% of the atoms or ions are on the surface, allowing both the possibility of manipulating of bulk properties by surface effects and near-stoichiometric chemical reactions [17].
Magnetite, changes its magnetic property when its size is reduced to below 15 nm, its magnetic properties become more pronounced, and it becomes superparamagnetic.

Therefore, the manufactured prototypes have different properties.
The parts were oriented so that the support material does not negatively affect the quality of the prototype function surfaces.
Imperfect edges are a property of 3D printing.
When compared to the current manufacturing methods, in this case, there is a significant time-saving factor in manufacturing the whole set and even the matrix alone.
The least financially demanding is to manufacture the whole set by means of FDM technology using ABS material, making a good trade-off between the material price and its mechanical properties.

Ravera reported on the interfacial properties of nanometric colloidal silica dispersions in the presence of a cationic surfactant [23].
This method had a little limitation in measuring of S.T and IFT and we could not obtain these factors for all nanofluids.
Liggieri, Effect of Nanoparticles on the Interfacial Properties of Liquid-Liquid and Liquid-Air Surface Layers, J.
Arya, Influence of ZrO2 nanoparticles including SDS and CTAB surfactants assembly on the interfacial properties of liquid-liquid, liquid-air and liquid-solid surface layers, J.
Miller, Study of the monolayer structure and wettability properties of silica nanoparticles and CTAB using the Langmuir trough technique, Colloid Sur.

Single and multiple enzymes, organelles, whole cells or organisms, slices of animal and/or plant tissue contain many enzymes, various co-factors, antibodies, and antigens that may serve as receptors.
Hence, it is possible to modulate their electronic and mechanical properties.
Recent research has also made attempts to modulate electronic and mechanical properties of polyaniline in order to suit particular applications.
Wallace, Effect of the counterion employed during synthesis on the properties of polypyrrole membranes, J.
Kan, Preparation and properties of an uricase biosensor based on copolymer of o-aminophenol-aniline, Sens.

Schilling1 1 Karlsruhe Institute of Technology, Institute for Applied Geosciences, Kaiserstr. 12, 76131 Karlsruhe, Germany 2 Frank Laboratory of Neutron Physics, JINR Dubna, 141980 Dubna, Russia 3 Institute of Geosciences, University of Kiel, Otto-Hahn-Platz 1, 24098 Kiel, Germany 4 Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany a christian.scheffzuek@kit.edu Keywords: gneiss, Western Alps, neutron-TOF-diffraction, crystallographic preferred orientation, residual strain, applied strain, Rietveld analysis Abstract Two polyphase gneiss samples (Western Alps, Switzerland) consisting of quartz, albite, muscovite and microcline have been investigated with respect to anisotropic physical properties - residual and applied strain - and crystallographic preferred orientations.
As CPO evaluation was the task, useful parameters to be refined in the MAUD, apart from orientation distributions (which were fitted using a discrete EWIMV algorith9m [8] with 5° resolution in the orientation space) and phase volume fractions, were the crystal lattice parameters, the single isotropic temperature factor Biso for all the atoms in the sample, and peak shape parameters (isotropic microstrain and crystallite size).
In contrast, the quartz CPOs of samples Go1 and Go2 are very similar and, therefore, not affected by the folding.
It is also possible that micropores associated with mica platelets (e.g. [12]) are able to accommodate applied mechanical stress to some degree.
Additionally, the relatively large grain size of quartz (100 µm) in relation to the investigated gauge volume of 2 cm3 may affect the observed strain magnitudes.