... Title : THERMOLUMINESCENCE INDUCED BY AC ELECTRIC FIELD IN ELECTROLUMINESCENT ZnS(Cu) SINGLE CRYSTALS,. ...
DTIC Science & Technology
... CONDITIONS IN THE AERODYNAMIC FLOW FIELD OF A HYPERSONIC VEHICLE. ... phenomena in gases subject to ac electric fields are analyzed. ...
... SAMPLE AND AN AC MAGNETIC FIELD ... FREQUENCY, WHERE IMPEDANCE HERE IS ... THE RECONSTRUCTION METHOD ARE PRESENTED ...
This conference examined the following aspects of 750 to 1500 kV ac power transmission systems and equipment: trends in systems and equipment development; electric field measurements and the consideration of electric fields in EHV and UHV ac system design...
National Technical Information Service (NTIS)
... (Author). Descriptors : *Ice, *Ice formation, *Electric conductors, *Cold weather tests, Transmission lines, Electric fields, Test equipment, Aluminum ...
High accuracy absolute fields utilize advanced processing techniques. ... scale instabilities. AC Electric Field. ELF Waveforms ...
NASA Website
The quantum transport theory of electronic conduction in the presence of a strong magnetic field is extended to the case of an applied alternating transverse electric field. The ac magnetoconductivity is calculated for a long-wavelength electric field, ta...
In this paper, it is described that measurement of fluid flow generated by simultaneous operation of an infrared (IR) laser and AC electric field in a microfabricated channel. When an IR laser (1026 nm) was focused under an intense AC electric field, a circulating flow was ...
NASA Astrophysics Data System (ADS)
This paper is a modeling study of whistler wave propagation in an infinite bi-Maxwellian magnetoplasma in the presence of an ac electric field. The authors derive the dispersion relations for the instability using a method of characteristic solutions. They determine the growth rate of the instability. They find that the ...
Energy Citations Database
... Title : Critical Currents and AC Losses in Model YBCO ... HALL EFFECT, ELECTRIC FIELDS, ALTERNATING CURRENT, OXIDES, COPPER ...
... Pagination or Media Count : 47. ... in a DC electric field, or ratio of odd harmonics in an AC electric field) of a weakly ionized gas (argon) are computed ...
with lightning sferics enhanced within density depletions. AC Electric Fields. Captured in VEFI. Burst Memory. + 3.5 mV/m. 3.5 mV/m.
Simultaneous measurements of energetic particles and ac electric fields made by the javelin sounding
NASA Technical Reports Server (NTRS)
... ELECTRIC CURRENT, *CARBON NANOTUBES, *FIELD EFFECT TRANSISTORS, *ALTERNATING CURRENT, *DIRECT CURRENT, CHEMICAL ...
... A piezoelectric material is formed from conductively anisotropic crystals by exposing the crystals to an AC electrical field, cold-pressing the crystals ...
... SUPERCONDUCTORS, *ELECTRIC FIELDS, *ALTERNATING CURRENT ... SURFACE PROPERTIES, THINNESS, SCALAR FUNCTIONS, LOSSES ...
... From the latter, the coil impedance and the ... FIELDS, HALL EFFECT, ELECTRICAL IMPEDANCE, COILS, VOLTAGE, CONDUCTIVITY ...
The electric field situation of three single-substrate AC- PDP cells has been investigated by computer simulation. The electric field distribution has been analyzed before firing and the period of extinguishing when charged particles deposited on the surface of the MgO layer. It is concluded ...
This study examined certain characteristics of spark discharges from vehicles energized by an electric field. Vehicles were placed in an electric field produced by a 500-kv transmission line. Spark dischargers were delivered through a resistor to a driven...
The Na, K-ATPase of human erythrocytes can transport Na+ and K+ against their respective concentration gradient using the energy supplied by an a.c. electric field. It is a model for studying the interaction of an electric field and a cell at the molecula...
- ent of the electric field is maximum or minimum. Dielectro- phoresis occurs in both ac and dc electric
E-print Network
We proposed an AC electric field-assisted novel polishing method for borosilicate glass plate with water-based slurry. It has been found that the applied electric field operates effectively in positioning the slurry with abrasives in the polishing area. In-situ observations also confirmed that ...
-LCD using a glass substrate and an anisotropic polymer film," J. Disp. Technol. 2, 21-25 (2006). #101323 composite film Glass Substrate In-plane electric field (AC) x z ITO electrodes LC/polymer composite film Glass Substrate In-plane electric field (AC) x z (a) ...
It has been established in a number of investigations that a phenomenon of ionic redistribution occurs when a dc electric field is applied to an ion-exchange system containing two or several counterions. In this work, the authors examine the effect of low-frequency ac electric fields on the ...
The application of AC-electric fields, when integrated with current microarray and ``lab-on-chip'' platforms, has emerged as a useful tool to manipulate and assemble supramolecular aggregates, such as AC-field induced protein crystallization and DNA hybridization, yet the detailed mechanism remains unclear. To understand the ...
The viscous response of electrorheological fluids is usually manipulated through the use of DC or uniaxial AC electric fields. The result is that fibrillated structures parallel to the field form in a quiescent fluid; the distortion of such structures in ...
Compared to other available methods, ac dielectrophoresis is particularly well-suited for the manipulation of minute particles in micro- and nano-fluidics. The essential advantage of this technique is that an ac field at a sufficiently high frequency supp...
The influence of the molecular interaction on the orientation of polarizable molecules in the presence of a strong ac orienting electric field is considered. It is shown that, under certain conditions, a molecular system can be driven into a new ordered p...
The electrical effects of power transmission lines and the effects that such lines may have on man and his environment are described. The electric effects include corona discharges, electric and magnetic field effects of ac lines, and induced currents and...
This booklet describes the electrical effects of ac and dc transmission lines and reviews the state-of-the-art knowledge on the possible biologial effects of such lines. Electrical effects are defined as those resulting from electric and magnetic fields a...
A power system for a motor vehicle having an internal combustion engine and an electric machine is disclosed. The electric machine has a stator having coils for receiving ac electrical power to provide a magnetic field, a permanent magnet rotor spaced fro...
We have investigated the motion of a charged particle in a one-dimensional system with an impurity under the action of AC electric field. We find that initially localized electron will remain localized if the ratio of the AC field magnitude and the frequency is a root of the ordinary zero-order ...
In this work, we explore the rich AC-electrokinetic effects to manipulate micelles of varied chemical structures and examine their stability in response to applied AC-electric fields. We investigate the AC-field induced transport and instability of sodium dodecyl sulfate (SDS) micelles and cetyl trimethylammonium ...
surfaces. Termed ac electro-osmosis, the flow has been studied experimentally and theoretically using and permittivity of the electrolyte. Al- though generated by ac fields, the fluid flow, referred to as ac electro-osmosis in the diffuse double layer on the electrode surface 1,4 . Consider two coplanar electrodes ...
It is suggested that the small secular effects produced in the NMR spectrum of a polar liquid as a result of molecular alignment in an electric field may be detected most easily through the sidebands produced when the field has an ac component. A general ...
The theoretical response of a paraelectric impurity to ac electric field has been derived for the system KCl:OH-. Electric field values for symmetry-allowed paraelectric transitions have been calculated as a function of microwave frequency for fields dire...
Five appendixes related to model studies of electric field effects in power substations are presented. Information is included on design of model components; design of 3-phase source; design of probes; electro-optic instrumentation for ac field strength m...
field detector that gathers DC and AC (or wave) electric fields using the double probe ... Dynamics Explorer-2 (DE-2) satellite [Maynard et al., 1981], ...
The effect of an external ac electric field on the nucleation rate of hen egg white lysozyme crystals increased with an increase in the concentration of the precipitant used, which enabled the design of an electric double layer (EDL) formed at the inner surface of the drop in the oil. This is attributed to the ...
PubMed
Space charge in polyethylene-based insulation materials and its effect on the local electric field under a dc environment have been extensively examined over the last few decades while the behavior of space charge under ac stress has received less attention. Space charge phenomenon under ac ...
Metal and semiconductor nanorods polarized by an external electric field tend to align parallel to this field. We derived the equation of motion for this alignment, taking into account electrostatic forces, thermal fluctuations and viscous resistance of the liquid the nanorods are suspended in. It was solved for a strong ...
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, ...
The ac free-electron laser (ac FEL) uses an ac (temporally oscillating but spatially uniform) field as the pump source with the hope that electromagnetic radiation will be produced with wavelength shorter than that can be generated by a conventional magnet FEL. The ac field ...
DOE Information Bridge
The effect of a horizontal ac electric field on the stability of natural convection in a dielectric fluid contained between two parallel vertical plates of different temperatures is investigated analytically using linear stability theory. The eigenvalue system is modified and solved by the power-series method, and numerical results are ...
The carrier behavior in a tetracene thin film under AC electric field was examined by electroluminescence (EL) using the structure of organic field-effect transistors (OFETs). A square wave voltage was applied to the source electrode, whereas the drain and gate electrodes were connected to the ground. Electrons and ...
Five appendixes related to model studies of electric field effects in power substations are presented. Information is included on design of model components; design of 3-phase source; design of probes; electro-optic instrumentation for ac field strength measurements; and computer codes used for calculating the ...
The AC-behavior of a hydrophilic and a hydrophobic post insulator is studied during four different rain conditions by measuring the electric field distribution, resistive and capacitive leakage currents and UV-photography of the discharge activity. The results are in agreement with each other and show resistive ...
This paper describes breakdown characteristics of an oil-pressboard insulation system to a superposition voltage of AC and DC voltages. Although AC electric field is decided by the ratio of the relative permittivity of a pressboard and insulating oil, DC electric field is ...
In this paper we examine the motion and behavior of particles suspended in aqueous solutions subjected to non-uniform ac electric fields. The particles can move due to forces exerted over them, or due to the motion of the surrounding liquid. In the first case, we have dielectrophoresis, due the action of ac ...
AC electric fields induce redistribution of integral membrane proteins. Cell-surface receptor redistribution does not consistently follow electric field lines and depends critically on the frequency of the applied ac electric ...
Experimental data on calcium-ion release in chicken brain tissue suggest that biological effects of electric and magnetic fields (EMFs) are concentrated at certain combinations of DC magnetic field strength and "critical" AC magnetic field frequencies. e hypothesize that "active"...
EPA Science Inventory
Between 2000 and 2003 Transportable AC Systems (TACS) and Hybrids (HTACS) were developed and demonstrated to support the electrical requirements of Command Centers in the field. Primary power was provided by unbreakable, lightweight, flexible solar module...
A microstirring tool is developed to improve binding rates in biosensor devices by an order of magnitude. AC electric fields generate fluid motion through the well documented but unexploited phenomenon, Electrothermal Flow, where the circulating flow redi...
Optical DC current and voltage measurement using Faraday or Pockels effect necessitates the compensation of light intensity variation with some methods, because it is possible the intensity variation may give rise to a measuring error. We have proposed a method which suggests superposing AC magnetic field on linearly polarized light or ...
alternating current electric field meter and a two-axis search coil ac magnetometer to identify electric fields and .... Using a hand-held camera system aboard the orbiter with image ...... Tesla(unit of measurefor magneticflux density) ...
Five subtasks are reported on: ac electric and magnetic fields, dc fields and ion measurements, gaseous dielectrics research (SF/sub 6/ mixtures), interfacial phenomena in liquids, and nanosecond breakdown in power system dielectrics. (DLC)
The propulsion of semiconductor diode nanowires under external AC electric field is described. Such fuel-free electric field-induced nanowire propulsion offers considerable promise for diverse technological applications. PMID:20177595
Both pulsatile (AC) and continuous (DC) electrical fields have been reported to increase growth or healing or otherwise modify the structure of various tissues, including nerves, bones and skin. Systematic application of these techniques in both animal re...
mixer uses ac electric field-induced dielectro- phoretic (DEP) forces.17 DEP forces fold and stretch
of a polarizable particle which is subjected to an applied ac electric field is called dielectro- phoresis [1
Selected Navigations: Subject > A-C [x]; Search Criteria: Search Field: All > Results : All > Search Term: (Accumulators Electric Batteries) [x] ...
Results 1 - 25 of 177 ... VEFI also measures the vector AC electric field, which characterizes the ionospheric disturbances associated with spread-F ...
... 1-138 1-69 Facility Power and AC Ground Distribution ..... ... 6-15 6-12 Electric Field Patterns in the Vicinity of a Radiating Dipole ..... ...
Under the influence of an ac electric field, electrolytes on planar microelectrodes exhibit fluid flow. The nonuniform electric field generated by the electrodes interacts with the suspending fluid through a number of mechanisms, giving rise to body forces and fluid flow. This paper presents ...
... This field produces electrical breakdown and a large azimuthal ... the 115 kV oscillator was applied to the pinched ... half-cycle of the main pinch current. ...
Records 1 - 18 of 18 ... VEFI also measures the vector AC electric field, which characterizes the ionospheric disturbances associated with spread-F ...
ALl ceramic samples are in the form of multilayer capacitors or can be made in ... and electric field will be measured at 2 K, as will the ac conductivity. ...
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, ...
... Accession Number : AD0655046. Title : DETERMINING THE ELECTRIC PARAMETERS OF AC CONDUCTORS FOR AIRCRAFT,. ...
The viscous response of electrorheological fluids is usually manipulated through the use of DC or uniaxial AC electric fields. The result is that fibrillated structures parallel to the field form in a quiescent fluid; the distortion of such structures in a flow determines the enhanced viscous response, at least at ...
Contents: electrical propulsion plant equipment requirements; dc electrical propulsion plant main current circuits; dc electrical propulsion plant field and regulation circuits; dc electrical propulsion plant protection, indication, and blocking circuits; calculation of the static ...
The stabilization characteristics of liftoff and blowoff in nonpremixed laminar jet flames in a coflow have been investigated experimentally for propane fuel by applying AC and DC electric fields to the fuel nozzle with a single-electrode configuration. The liftoff and blowoff velocities have been measured by varying the applied ...
An electric motor using thyristor switches to allow connection to an ac supply voltage is described. The thyristor switching is accomplished in part, by the use of a sensor which notes and uses relative positions of the magnetic fields of the armature and of the field to change the gate voltage applied to the ...
A pyrotron-type machine is designed for carrying out thermonuclear reactions. Loss of charged particles is minimized by reflecting them in an axially symmetrical magnetic field with an a-c electric field applied transversely to the magnetic field. (D.L.C.)
sample. The parameters used in the conductivity expression may have significant influence on the electricDC electric field distribution in planar dielectric in the presence of space charge Z. Xu * , W17 1BJ, United Kingdom * E-mail : zx04r@ecs.soton.ac.uk Abstract: Electric ...
We present a drop-based technique for the deposition of drug dosages onto an edible film. Unlike the common approach to utilize DC electric fields and metal nozzles, we use a nozzle made of an electrically insulating material and apply an AC electric field to form drops. ...
We are developing AC electrokinetic micropumps to drive electrically conductive biological fluids in microchannels. These pumps work on the principles of Induced Charge Electroosmosis (ICEO) and flow Field Effect Transistor (flowFET) phenomena. AC (as well as DC) electric ...
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 ...
The frequency dependence of the shear stress of electrorheological (ER) fluid has been studied. We find that the shear stresses of some water-free ER fluids increase monotonically with the frequency and tend to reach saturated values at high frequency. The measurements on KNbO3-silicone-oil ER fluid show that the shear stresses under a 103 Hz frequency ac ...
Orthogonal electrodes have been reported to produce high velocity microflows when excited by ac signals, showing potential for micropumping applications. This paper investigates the microflow reversal phenomena in such orthogonal electrode micropumps. Three types of microflow fields were observed by changing the applied electric ...
PubMed Central
Like resistance, reactance slows an electrical current down. Explained by Lenz's Law, this phenomenon occurs only in AC circuits. When an electric current flows through a circuit, it is opposed by two things: resistance and reactance. Resistance, found in both alternating current (AC) and direct current (DC), comes ...
NSDL National Science Digital Library
We report that double-stranded DNA collapses in the presence of ac electric fields at frequencies of a few hundred Hertz, and does not stretch as commonly assumed. In particular, we show that confinement-stretched DNA can collapse to about one quarter of its equilibrium length. We propose that this effect is based on finite relaxation ...
The patent describes a combination of elements for detecting leakage of electrically conductive fluids from tanks, including a reference electrode, an AC generator connected between the tank and the reference electrode, and one or more sensing electrodes positioned between the tank and the reference electrode. The storage tank and reference electrode are ...
During the course of a study, supported by an IITRI project with the Electric Power Research Institute, some 2300 references were identified which were then reduced to some 800 citations. With that as a starting point, this bibliography has been prepared to aid in the assessment of extremely low frequency biological research. This bibliography emphasizes the following areas: ...
The techniques to induce particle and fluid motion inside microsystems using ac electric fields have important applications in sensing and manipulating bioparticles. Micron-Resolution Particle Image Velocimetry (m-PIV) is a powerful tool to measure the spatially resolved motion with resolution approaching 1mm. In the presence of ...
A theoretical approach for the nonlinear ac electro-optical response in polyelectrolytes is developed in the case where a weak ac electric field superimposed on a strong dc bias electric field is applied to these electrically charged systems. By ...
This project has been directed towards the evaluation of the effect of electrical fields, AC and DC, on the metabolism and growth of microorganisms. Test systems used were batch culture, (Aerobic and anaerobic), continuous culture, and the use of genetic ...
This paper describes a method of effectively electroporating mammalian cell membranes with pulsed alternating-current (ac) electric fields at field strengths of 30-160 kV m(-1). Although many in vivo electroporation protocols entail applying square wave or monotonically decreasing pulses via needles or electrode ...
This paper describes a method of effectively electroporating mammalian cell membranes with pulsed alternating-current (ac) electric fields at field strengths of 30-160 kV m?1. Although many in vivo electroporation protocols entail applying square wave or monotonically decreasing pulses via needles or electrode ...
The change in the optical density of an emulsion of magnetic fluid drops suspended in a mineral oil under the action of electric and magnetic fields has been investigated. It is found that the sign of the change in transparency in an ac electric field depends on the field ...
Heavy impurity ions can be removed from the toroidal magnetic trap in the helical magnetic field of a conventional torsatron or heliotron with the use of an alternating current (ac) electric field. The passing particles can be transformed into helically trapped ones and escape from the magnetic confinement volume ...
A method is developed for calculating the induced voltages on fence wires/pipelines underneath AC power transmission lines. The method is based on the charge simulation technique and takes into account the disturbances of the electric field and potential due to the presence of the fence wire/pipeline underneath the line. The calculated ...
We present a novel, general, semiclassical theory of electron transport in a carbon nanotube exposed to an external electric field. The charge carriers are treated in the framework of the simplified tight-binding model. Simultaneous exposure to rapidly oscillating (ac) and constant (dc) electric ...
A theory for the spontaneous emission of radiation for a Bloch electron in a single superlattice (SL) energy band under the influence of an external, spatially homogeneous, classical ac electric field is presented. The classical external ac electric field is described in ...
The static and dynamic behaviors of partially charged and end-grafted polyelectrolyte brushes in response to electric fields were investigated by means of molecular dynamics simulation. The results show that the polymer brushes can be partially or fully stretched by applying an external electric field. Moreover, ...
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 lines and ...
Micelles and polymers vesicles have been of increasing interest as drug delivery systems for controlled release, specific cell targeting, and medical diagnostics. In addition, AC-electrokinetic techniques have emerged as a viable option for colloidal and biocolloidal manipulation. In this work, we examine the dielectrophoresis (DEP) characteristics of complex micellar ...
Occasional observations of intense low frequency electric field fluctuations have been detected near the magnetic equator by the vector ac electric field experiment performed on the OV1-17 satellite which was in a circular polar orbit at an altitude of ab...
Some experimental results of the application of small electric fields on an optically pumped metal-dielectric far infrared (FIR) waveguide laser are shown. It is demonstrated that sizable modulation of the FIR output power can be obtained with ac fields.
The purpose of the study is to establish the feasibility of using an optical fiber interferometer to measure the electric field generated by surface charges. A Fourier transform method was devised to measure AC fields even under changing environmental con...
A piezoelectric material is formed from conductively anisotropic crystals by exposing the crystals to an AC electrical field, cold-pressing the crystals while still under the influence of the field, then processing the crystals to a dense piezoelectric ma...
This article describes methods for finding turn-to-turn shorts in rotors of electrical generators. Locating such shorts can be accomplished by comparing the DC resistance or AC impedance of field coils. The experiences of two utilities with the latter method are discussed.
The design and testing of a 400 watt, dual phase, dual rotor, field modulated inductor alternator is described. The system is designed for use as a flywheel to ac utility line or flywheel to dc bus (electric vehicle) power converter. The machine is unique...
We have calculated the alternating current (ac) losses of a 114 MVA high-TC superconducting (HTS) transmission cable using an electric-circuit (EC) model. The HTS cable is fabricated by Tokyo Electric Power Company and Sumitomo Electric Industries, Ltd. The EC model is comprised of a resistive part and an inductive ...
Experiments show that phospholipid vesicles exposed to AC electric field undergo a shape transition from prolate to oblate ellipsoidal shape when the frequency of the field is increased. In a theoretical model that has been devised to explain this phenomenon for nearly spherical vesicles, the vesicle shape is ...
An electron rotating under a uniform axial magnetic field and a radial electric field exhibits an effective mass that may be negative, positive, or infinite, in response to an azimuthal electric field. This paper reports simulation results that show instability and stability when the effective ...
We report observations of an instability at the free surface of a liquid due to an in-plane electric field. The horizontal air-liquid interface in a partially filled sample cell between vertical electrodes exhibited first oscillations, then increasingly turbulent fluctuations as the strength of the horizontal electric ...
... Title : AC MAGNETIC FIELDS IN THE ... CALCULATIONS OF THE IMPEDANCE OF A ... IS ACCOMPLISHED BY TWO INDEPENDENT METHODS. ...
Metallic taste has been reported from divers working with underwater electric welding and cutting. An in vitro model was designed to simulate the intraoral situation of the divers with respect to the magnetic field. Potentiostatic analyses were performed on amalgam samples exposed to AC and DC magnetic fields. ...
We present experiments on pattern formation in a Brownian system of oppositely charged colloids driven by an ac electric field. Using confocal laser scanning microscopy we observe complete segregation of the two particle species into bands perpendicular to a field of sufficient strength when the frequency is in a ...
This work describes the initial experimental setup and results involving the percentage cell lysis in SWLA-2 murine hybridomas produced by AC electric field pulses of varying amplitudes and pulse widths. Cells were cultured and separate samples examined at 24 hours. The frequency, pulse width and peak-to-peak voltage were varied. ...
The electroluminescence (EL) from a tetracene field-effect transistor was examined by applying an AC voltage to elucidate electron injection from the source and drain Au electrodes. The EL intensity was proportional to the AC frequency up to 500 kHz, but it decayed rapidly with elapsed time when applying the AC ...
The role of surface charge in fluid flow in micro/nanofluidics systems as well as the role of electric field to create switchable hydrophobic surfaces is of interest. In this work, the contact angle (CA) and contact angle hysteresis (CAH) of a droplet of deionized (DI) water were measured with applied direct current (DC) and alternating current ...
Ultra-low frequency AC field was employed to align p/n polymers during organic photovoltaic device fabrication. The resulting devices show 15% increase in power conversion efficiency and four-fold increase in parallel resistance. Supported by the transmission electron microscopy and atomic force microscopy images, the performance enhancement is attributed ...
... 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 ...
The combined use of electrokinetic remediation and phytoremediation to decontaminate soil polluted with heavy metals has been demonstrated in a laboratory-scale experiment. The plants species selected were rapeseed and tobacco. Three kinds of soil were used: un-contaminated soil from forest area (S1), artificially contaminated soil with 15mgkg(-1) Cd (S2) and multi-contaminated soil with Cd, Zn ...
We present a new technique for fabricating gold nanowires using carbon nanotubes as the template. By applying an ac voltage to an electrically contacted single walled carbon nanotube, we generate highly non-uniform ac electric fields in the vicinity of the nanotubes. These ...
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 stability of spherical vesicles in alternating (ac) electric fields is studied theoretically for asymmetric conductivity conditions across their membranes. The vesicle deformation is obtained from a balance between the curvature elastic energies and the work done by the Maxwell stresses. The present theory describes and clarifies ...
Since 1973 the Electric Power Research Institute (EPRI) has supported research to evaluate the biological effects which may result from exposure to electric fields produced by AC overhead transmission lines; more recently, EPRI has also begun DC research. Through 1981 EPRI will have expended $8.7M on these efforts. ...
A rotary motor has a superconducting freely spinning field winding, ac armature windings and electrically conductive screen means connected to an output shaft. The field winding consists of a flat winding delivering a magnetic field whose lines of flux are parallel to the axis. The armature ...
In this paper a theoretical study of the radiation pattern of an antenna build up from a confined magnetoplasma is made. Assuming that the electron gas is in the linear regime, we derived expressions for the conductivity tensor of the plasma and the radiated electromagnetic field under the influence of both dc magnetic and ac electric ...
Electrokinetic boundary conditions are derived for ac electrokinetic phenomena over leaky dielectric (i.e., semiconducting) surfaces. Such boundary conditions correlate the electric potentials across a semiconductor-electrolyte interface (consisting of an electric double layer inside the electrolyte solution and a space charge layer ...
We apply a Langevin model to investigate the nonlinear ac responses of electro-magnetorheological (ERMR) fluids under the application of two crossed dc magnetic (z axis) and electric (x axis) fields and a probing ac sinusoidal magnetic field. We focus on the influence of the magnetic ...
The movement and behaviour of particles suspended in aqueous solutions subjected to non-uniform ac electric fields is examined. The ac electric fields induce movement of polarizable particles, a phenomenon known as dielectrophoresis. The high strength ...