Page 1. Electrical and Magnetic Properties of D6ac Steel SK Burke and ME Ibrahim ... Page 3. Electrical and Magnetic Properties of D6ac Steel ...

... Accession Number : ADA474883. Title : Electrical and Magnetic Properties of D6ac Steel. Descriptive Note : Technical note. ...

... of Grain Boundaries on the Electrical Properties of Zinc Oxide-Based Varistor ... Abstract : The ac response of ZnO-based varistors was measured as a ...

The room temperature electrical and magnetic properties of the high strength steel D6ac are documented in this report. These data were used to support a wider study on the application of magnetic rubber testing (MRT) for the structural integrity managemen...

... SUPERCONDUCTORS, *ELECTRIC FIELDS, *ALTERNATING CURRENT ... SURFACE PROPERTIES, THINNESS, SCALAR FUNCTIONS, LOSSES ...

Seven coating systems on steel panels were immersed in salt water for up to nearly two years. AC and DC electrical properties of the coatings were determined and were compared with the performance of the coatings in the laboratory, in shallow water, and i...

... TEMPERATURE RANGE OF 85 DEGREE TO 700 DEGREE C IN DRIED N(2) ATMOSPHERE BY AN AC IMPEDANCE METHOD BETWEEN 120 ...

... Accession Number : AD0655046. Title : DETERMINING THE ELECTRIC PARAMETERS OF AC CONDUCTORS FOR AIRCRAFT,. ...

Alternating current (AC) electrokinetic motion of colloidal particles suspended in an aqueous medium and subjected to a spatially nonuniform AC electric field are examined using a simple theoretical model that considers the relative magnitudes of dielectrophoresis, electrophoresis, AC-electroosmosis, and Brownian ...

This review describes the electrical properties of a-c and d-c transmission lines and the resulting effects on plants, animals, and people. Methods used by BPA to mitigate undesirable effects are also discussed. Although much of the information in this review pertains to high-voltage transmission lines, information on distribution ...

The development of a new instrument is described and also techniques of measurement to determine; for fluids: (1) thermal conductivity, (2) dielectric constant, and hence (3) index of refraction, (4) electrical conductivity a.c., (5) electrical conductivi...

It has been observed that ac impedance measurements made over a wide frequency range can be used to determine the electrical properties of photovoltaic solar cells. The occurrence of a distribution of time constants for an array of cells indicates that one or more cells deviate significantly from the values of cells which operate ...

Alternating current (ac) electrokinetic motion of colloidal particles suspended in an aqueous medium and subjected to a spatially nonuniform ac electric field are examined using a simple theoretical model that considers the relative magnitudes of dielectrophoresis, electrophoresis, ac-electroosmosis, and Brownian ...

Impedance spectroscopy has been used to study the effect of kaolinite grain sizes on the AC electrical properties of kaolinite/polystyrene composites under different temperatures and applied frequencies. Impedance measurements were performed on prepared composites containing 20% kaolinite mineral of grain sizes 63, 106, 212, and 300 ?m ...

Alternating-current (AC) driven high-power light-emitting diodes (LEDs) have become available and introduced into solid-state lighting (SSL) products. AC LEDs operate directly from a mains supply with no need of drivers, and thus can simplify the design of SSL product and potentially increase product's reliability and lifetime. Similar to direct-current ...

In recent years biomaterials attract attention in various fields to solve environmental problems. Bamboo is naturally decomposed and characterized by its excellent elasticity, split and water absorption property. We consider that bamboo-ice composite system can be used as a substitute of GFRP (Glass Fiber Reinforced Plastics), which is not decomposed, in ...

... Title : THE USE OF AC FOR STRUCTURAL ANALYSIS OF FERROMAGNETIC MATERIAL BY THE ELECTRIC RESISTANCE METHOD. ...

... IS BASED ON AN AC METHOD KNOWN IN ... WHEN AC CURRENT FLOWS THROUGH THE SYSTEM, IT ... LAYER AND AN IMPEDANCE OF THE ...

This paper considers an AC and DC electrical features of porous silicon (PSi) layers prepared by electrochemical etching. Measurements of capacitance frequency (C f), conductance frequency (G f), photoconductivity (PC) and current voltage (I V) were used for the investigation of the electrical properties of these ...

The AC electrokinetic movement of fluids has its origin in two different physical mechanisms: AC electroosmosis, the interaction of the Electrical Double Layer induced on microelectrodes by an applied potential and the generated electric field; and electrothermal Electro-hydrodynamics, the interaction of an ...

A previous in vitro constant electrical resistance alternating current (AC) iontophoresis study with human epidermal membrane (HEM) and a model neutral permeant has shown less inter- and intra-sample variability in iontophoretic transport relative to conventional constant direct current (DC) iontophoresis. The objectives of the present study were to ...

... Title : THERMOLUMINESCENCE INDUCED BY AC ELECTRIC FIELD IN ELECTROLUMINESCENT ZnS(Cu) SINGLE CRYSTALS,. ...

... Title : Superconducting Electric Machines for Ship Propulsion. ... superconducting AC machine concepts were ... MIT on superconducting AC machines. ...

The electrical properties of alizarin doped anthraquinone were investigated using a complex impedance spectroscopy technique. Dielectric study revealed a phase transition from the semiconducting to the conducting state at 53�C. The dielectric relaxation was found to be of non-Debye type. Evidence of temperature-dependent electrical ...

The kinesin-microtubule system plays an important role in intracellular transport and is a model system for integrating biomotor-driven transport into microengineered devices. AC electrokinetics provides a novel tool for manipulating and organizing microtubules in solution, enabling new experimental geometries for investigating and controlling the interactions of microtubules ...

The present work aims to study the effects of the blood-microstructure on the electrical conduction from two different but correlated properties: Electrical and mechanical (viscosity), and to derive useful parameters for the evaluation of electrical conduction as a function of the blood viscosity. ...

AC loss can be a significant problem for any applications that utilize or produce an AC current or magnetic field, such as an electric machine. The authors investigate the electromagnetic properties of high temperature superconductors with a particular focus on the AC loss in superconducting ...

Crystalline defects and ionic transport in potassium and rubidium azide have been studied by measuring the electrical conductivity with an a.c. bridge technique and the diffusion of cations by a tracer sectioning technique. Methods were developed to grow ...

The objective of this test is to examine the mechanical and electrical properties of PFPI insulation. Some of the parameters considered during the test are: AC corona (400 Hz), wire fusing time, abrasion resistance, dynamic cut through, notch propagation,...

The polymerization of 2-vinylpyridine in an ac electric discharged plasma process produced highly crosslinked, pinhole-free polymer films. Because of the good dielectric properties, glow discharge polymerized films were formed to be used as thin-film insu...

The effects of gigarad-level total absorbed doses from 1-MeV electrons on the post-irradiation alternating-current (ac) and direct-current (dc) electrical properties and the unpaired electron densities have been studied for Kapton, Ultem, and Mylar. The unpaired electron densities (determined from electron paramagnetic resonance ...

WC/amorphous carbon (a-C) thin films were deposited by dual magnetron sputtering from individual WC and graphite targets. The influence of film composition and microstructure on the optical and electrical properties was investigated. As evidenced by x-ray photoelectron spectroscopy and grazing angle x-ray diffraction measurements, the ...

We examine the properties of an elliptically polarized wiggler that will generate circularly polarized photons with energy spectrum of 3--12 KeV. The vertical wiggler magnetic field is produced by permanent magnets while the horizontal wiggler field is generated by electric coils capable of AC excitation. The radiation parameters of ...

We report the study of electrical properties of some silver ion conducting molybdophosphate and borophosphate mixed network former glasses in a wide frequency and temperature range. The dc conductivity of the mixed network former glasses is higher than that of the single network former glasses. The ac conductivity spectra show a power ...

It is pointed out that dc drives will be the logical choice for current production electric vehicles

A flow-system technique has been developed that detects the high-frequency resistance and capacitance changes in a sensing orifice due to the passage of cells through the orifice. The resistance and capacitance changes are related to cell properties such as size, plasma membrane capacitance, and electrical resistivity of the cell interior. The relationship ...

The objective of this study is to develop a parallel ac-ac converter that can be implemented as a means of connecting ac generators in parallel. The most important goal of the parallel converter in this study is to obtain equal current sharing performance among the paralleled generators such that an economically optimal solution for production cost of ...

... Title : High Frequency Properties of Electron Waveguides, AC- Admittance, Scattering Parameters, Plasma Oscillations. ...

We report the synthesis and structural and physical properties of CaFe4As3 single crystals. Needle-like single crystals of CaFe4As3 were grown out of Sn flux and the compound adopted an orthorhombic structure as determined by x-ray diffraction measurements. Electrical, magnetic, and thermal properties indicate that the system undergoes ...

Some electrical properties, such as piezoelectricity, ac conductivity, dielectric constant and loss tangent of nine commercial types of dental composite restorative materials, have been investigated before and after laser exposure for 3s to study the effect of a probable laser exposure during some surgeries on the ...

The effect of uniaxial pressure (0-1000 bars) applied parallel or perpendicular to the ac electric field on electric properties of soft PZT ceramics has been investigated. It was found that uniaxial pressure significantly influences these properties. With increasing pressure the peak intensity ...

Glass ceramic superconductors were prepared by the melt-quenching method. The frequency and temperature dependence of dielectric constant ( ?'), dielectric loss ( ??) and loss tangent (tan ?) of these superconductors were investigated in the frequency range of 10 kHz-10 MHz and temperature range of 80-300 K using the capacitance-voltage (C-V) and conductance-voltage (G/w-V) measurements. Effect of ...

Microwave non thermal plasma irradiation was conducted on active carbon (AC) preliminarily impregnated with poly(vinyl alcohol) (PVA) in order to modify the adsorption properties of active carbon, particularly to increase hydrophobicity. The plasma was produced by applying microwave power on the PVA-impregnated active carbon (PVA/AC) ...

... Descriptors : *BARIUM COMPOUNDS, MAGNETIC PROPERTIES, CRYSTAL STRUCTURE, ELECTRICAL PROPERTIES, ELECTRICAL ...