Relevant bibliographies by topics / Alternating current

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Alternating current'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Alternating current.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Alternating current"

1

Sadiku, Matthew N. O., Adedamola A. Omotoso, and Sarhan M. Musa Adebowale E. Shadare. "Flexible Alternating Current Transmission Systems." International Journal of Trend in Scientific Research and Development Volume-3, Issue-1 (December 31, 2018): 809–11. http://dx.doi.org/10.31142/ijtsrd19063.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

McKee, M. "Alternating Current." Minnesota Review 2010, no. 75 (September 1, 2010): 42–44. http://dx.doi.org/10.1215/00265667-2010-75-42.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Maheshwari, Siddharth, Nishant Chetwani, and Hsueh-Chia Chang. "Alternating Current Electrospraying." Industrial & Engineering Chemistry Research 48, no. 21 (November 4, 2009): 9358–68. http://dx.doi.org/10.1021/ie801841r.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Makhlin, N. M. "Peculiarities of contactless ignitions of alternating current arc." Paton Welding Journal 2015, no. 10 (October 28, 2015): 29–35. http://dx.doi.org/10.15407/tpwj2015.10.05.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

YAMAMOTO, Mitsuyoshi, and Takeshi ISHIGOHKA. "History of Alternating Current." Journal of The Institute of Electrical Engineers of Japan 125, no. 7 (2005): 421–24. http://dx.doi.org/10.1541/ieejjournal.125.421.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Eßmann, Vera, Jan Clausmeyer, and Wolfgang Schuhmann. "Alternating current-bipolar electrochemistry." Electrochemistry Communications 75 (February 2017): 82–85. http://dx.doi.org/10.1016/j.elecom.2017.01.006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kim, D. K., T. H. Ha, Y. C. Ha, J. H. Bae, H. G. Lee, D. Gopi, and J. D. Scantlebury. "Alternating current induced corrosion." Corrosion Engineering, Science and Technology 39, no. 2 (June 2004): 117–23. http://dx.doi.org/10.1179/147842204225016930.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Schneider, Friedemaan W., Marcus J. B. Hauser, and Joachim Reising. "An Alternating Current Battery." Berichte der Bunsengesellschaft für physikalische Chemie 97, no. 1 (January 1993): 55–58. http://dx.doi.org/10.1002/bbpc.19930970111.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zou, Haiyang, Guozhang Dai, Aurelia Chi Wang, Xiaogan Li, Steven L. Zhang, Wenbo Ding, Lei Zhang, Ying Zhang, and Zhong Lin Wang. "Alternating Current Photovoltaic Effect." Advanced Materials 32, no. 11 (February 3, 2020): 1907249. http://dx.doi.org/10.1002/adma.201907249.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Zou, Haiyang, Guozhang Dai, Aurelia Chi Wang, Xiaogan Li, Steven L. Zhang, Wenbo Ding, Lei Zhang, Ying Zhang, and Zhong Lin Wang. "Alternating Current Photovoltaic Effect." Advanced Materials 32, no. 21 (May 2020): 2001532. http://dx.doi.org/10.1002/adma.202001532.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Alternating current"

1

Belland, Eirik. "Alternating Current Corrosion of Carbon Steel." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16342.

Full text
Abstract:
The objective was to investigate if the established theory concerning corrosion calculations and electrochemical behavior of carbon is valid when steel is exposed to AC in an electrolyte consisting of 3,5 wt% NaCl and distilled water. The experimental work was divided in two main parts. The first part concerned corrosion testing, including weight loss measurements in stagnant conditions in combination with linear polarization resistance experiments. AC-current densities investigated was 0-, 50-, 75-, 100-, 150-, 220- and 500 A/m2. Polarization curves were produced on two weight loss samples, one exposed to 150 A/m2 and the other exposed to 220 A/m2, at the end of the weight loss experiments.From the corrosion testing it was found that the estimated corrosion current densities (icorr) from the weight loss experiments on samples exposed to AC-current densities below 500 A/m2, was in an approximate accordance with the icorr values estimated from LPR. At 500 A/m2 the measured corrosion rates and corresponding corrosion currents were slightly higher than the remainder. The higher corrosion rate measured from the samples exposed to 500 A/m2 is suggested related to a non-faradaic corrosion contribution. The suggested mechanism is a facilitation of grain boundary corrosion at high AC-current densities leading to the loss of grains. This being a non-faradaic corrosion contribution it is not possible to measure with LPR or polarization curves. The constant B [mV] from the Stern-Geary equation was estimated on basis of LPR measurements. The constant displayed a decreasing trend with increasing AC-current densities. This was explained by the lowering of anodic and cathodic tafel slopes with increasing AC-current densities. The polarization resistance (Rp’ - [Ω∙m2]) also showed a decreasing trend with increased AC-current densities. This was explained by the increased current response in the LPR measurements with increasing AC-current densities.The second part was intended to elucidate the effect of AC on electrochemical behavior of the carbon steel through producing polarization curves at different AC-current densities using a rotating electrode experimental setup. Alterations in corrosion current densities, cathodic tafel slopes, limiting current density of oxygen reduction and corrosion potentials on steel without AC and at current densities of 100-, 150-, 220- and 500 A/m2 are investigated during the electrochemical testing.  From the rotating electrode experiments no significant change in corrosion current was found with increasing AC-current densities. The potential range, in which limiting current of oxygen reduction (ilim) appeared, decreased with increasing AC-current densities. This decrease in ilim also affected the corrosion potentials (Ecorr). A decrease in the potential range of ilim leads to a more cathodic Ecorr. A particular observation was found at AC-current densities of 150 A/m2 were the effect of ilim seemed absent. The samples exposed to this AC-current density also attained the most cathodic corrosion potentials at approximately -850mVSCE which was between 200-400mV lower than the samples exposed to the remaining AC-current densities. Cathodic tafel slopes showed a decreasing trend with increasing AC-current density. Anodic rafel slopes were considered absent due to pitting above Ecorr.Pictures of the weight loss samples were captured in the SEM. It was found that the formation of pits occurred on all weight loss samples exposed to AC. On the samples without induced AC no sign of pitting was observed. Hence it was found that the corrosion attacks attained a more local character when AC-current was induced in the steel samples.
APA, Harvard, Vancouver, ISO, and other styles
2

Forthun, Kari. "Alternating Current Corrosion of Aluminium Sacrificial Anodes." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22387.

Full text
Abstract:
Direct Electric Heating (DEH) is applied to subsea oil production and transmission pipelines to prevent freezing of hydrates as wax during productions shut downs. To prevent clogging, the pipes are heated by application of alternating current (AC) voltage. As a result, a risk for AC corrosion is introduced, which is the motivation and subject of this thesis. The steel pipes are coated and applied conventional cathodic protection (CP) by use of AlZnIn sacrificial anodes. The present work focused on the risk of increased rates of AC influenced corrosion of the AlZnIn anodes. Anode samples coupled to steel samples were investigated under applied AC by use of laboratory scale test cells in synthetic seawater at room temperature. In these experiments, which lasted for one week, the applied AC was varied in the range 0.5 to 150 A m-2, and the anode-steel area ratio (AR) was set to either 10:1 or 100:1. Corrosion rates were assessed by weight loss measurements and properties of surface deposits and corroded surfaces were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. For better assessment of anode-steel coupling in practice and the significance of anode-steel area, similar tests were performed by using a connection of two identical pairs of parallel-coupled anode-steel, with area ratio of 100:1. Equipment and methodology for investigation of AC corrosion were developed and evaluated. Results show that the anode corrosion rate increased with increasing applied AC level, while steel is sufficiently protected under the experimental conditions specified above. Anode corrosion rate was influenced both by current provided for the protection of the steel and self-corrosion and the attack was characterized by pit formation and coalescence of these at higher AC levels. High self-corrosion rates were attributed to successive alkalization, explained by hydrogen evolution, and acidification of the anode surface at each AC cycle, which destabilized the protective oxide layer. Corrosion was limited at high AC levels, explained by hydrogen blanketing of the anode surface and by hydrogen trapped within pores of the hydroxide surface film. AC corrosion of the anodes depended strongly on the anode-steel area ratio. In experiments with electrode pair configuration as described above, the significance of the steel samples vanished by increasing the anode-steel area ratio to 100:1. The system functioned as an anode?anode galvanic couple, which caused a significant decrease in the potential of the anodes, giving rise to runaway self-corrosion rates. In experiments with one anode-steel couple, the couple potential also decreased once AC was applied, increasingly in extent with applied AC potential. This further increased the current requirement by increasingly cathodic steel, thereby resulting in extreme anode corrosion at high AC levels in experiments with AR of 10:1. A subsequent positive shift in the couple potential to a stable level lower than the DC operation potential (-1.05 VSCE) of the AlZnIn anode was observed within 20 hours, caused by hydrogen evolution on steel. The time until the positive shift increased with applied AC level and decreased AR. Formation of calcareous deposits on the steel surface under DC conditions is an important aspect of CP in seawater because the deposits reduce the current requirement significantly. Such deposits did not appear to have a similar significance in the presence of applied AC. Increased water reduction by AC, causing pH increase on the steel surface higher than the DC case, reduced the protectiveness of the deposits by inhibition of electrically insulating CaCO3 formation. Preconditioning of the steel surface by CP under usual DC conditions to form the desired deposits did not have a clear influence on the AC corrosion of anodes. The decrease of both the AC and DC components of the cell current as a function of time under moderate applied AC levels, however, indicated the formation of calcareous deposits on steel. No calcareous scales were found to deposit on the anode surface. The decrease of cell current with time can also be attributed to the development of corrosion products on the anode surface. Decrease in the cell current was not appreciable for high AC levels (> 2 V RMS) with an AR of 10:1, explained by the destruction and instability of the calcareous deposits due to vigorous gas evolution. In conclusion, these results suggest that the lifetime of the CP system at high levels of applied AC (V(AC) > 2 V AC or iAC > 30 A m-2) may become significantly reduced in relation to the expected lifetime under DC conditions.
APA, Harvard, Vancouver, ISO, and other styles
3

Ahmed, Mustafa M. Abdalla. "Alternating-Current Thin-Film Electroluminescent Device Characterization." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-233432.

Full text
Abstract:
Jádrem této disertační práce bylo studovat optické a elektrické charakteristiky tenkovrstvých elektroluminiscenčních součástek řízených střídavým proudem (ACTFEL) a zejména vliv procesu stárnutí luminiforů na jejich optické a elektrické vlastnosti. Cílem této studie měl být příspěvek ke zvýšení celkové účinnosti luminoforů, vyjádřené pomocí jasu, účinnosti a stability. Vzhledem k tomu, že současnou dominantní technologií plochých obrazovek je LCD, musí se další alternativní technologie plošných displejů porovnávat s LCD. Výhodou ACTFEL displejů proti LCD je lepší rozlišení, větší teplotní rozsah činnosti, větší čtecí úhel, či možnost čtení při mnohem vyšší intenzitě pozadí. Na druhou stranu je jejich nevýhodou vyšší energetická náročnost, problém s odpovídající barevností tří základních barev a podstatně vyšší napětí nutné pro činnost displeje. K dosažení tohoto cíle jsme provedli optická, elektrická a optoelektrická měření ACTFEL struktur a ZnS:Mn luminoforů. Navíc jsme studovali vliv dotování vrstvy pomocí KCl na chování mikrostruktury a na elektroluminiscenční vlastnosti (zejména na jas a světelnou účinnost) ZnS:Mn luminoforů. Provedli jsme i některá, ne zcela obvyklá, měření ACTFEL součástek. Vypočítali jsme i rozptylový poměr nabitých barevných center a simulovali transportní charakteristiky v ACTFEL součástkách. Studovali jsme vliv stárnutí dvou typů ZnS:Mn luminoforů (s vrstvou napařenou či získanou pomocí epitaxe atomových vrstev) monitorováním závislostí svítivost-napětí (L-V), velikost vnitřního náboje - elektrické pole luminoforu (Q-Fp) a kapacitance-napětí (C-V) ve zvolených časových intervalech v průběhu stárnutí. Provedli jsme krátkodobá i dlouhodobá měření a pokusili jsme se i o vizualizaci struktury luminoforu se subvlnovým rozlišením pomocí optického rastrovacího mikroskopu pracujícího v blízkém poli (SNOM). Na praktickém případu zeleného Zn2GeO4:Mn (2% Mn) ACTFEL displeje, pracujícího při 50 Hz, jsme také studovali stabilitu svítivosti pomocí měření závislosti svítivosti na napětí (L-V) a světelné účinnosti na napětí (eta-V). Přitom byl zhodnocen význam těchto charakteristik. Nezanedbatelnou a neoddělitelnou součástí této práce je i její pedagogický aspekt. Předložený text by mohl být využit i jako učebnice pro studenty na mé univerzitě v Lybii.
APA, Harvard, Vancouver, ISO, and other styles
4

Hernández-Morales, José Bernardo. "Electromagnetic stirring with alternating current during electroslag remelting." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28385.

Full text
Abstract:
The electroslag remelting process combines both a chemical refining ability and a better control on solidification which produces materials of more uniform properties. In spite of the advantages of this process, segregation-prone alloys are still difficult to produce via ESR, particularly when large ingot diameters are involved. In this context the study of externally applied electromagnetic fields is of great interest. An AC operated stirring device was designed and laboratory-scale experiments were conducted. The solidification structures resulting from the stirring as well as the mixing conditions prevailing in the liquid pool were investigated. Also, modelling studies on the electromagnetic body force produced by the stirrer and the resulting thermal field were conducted. The start of stirring results in a clearly defined band in both steady- and unsteady-state regimes. The microstructure was not significantly modified in the center of the ingot but a loss in directionality was found at the mould wall. It seems apparent that the stirred liquid does not penetrate significantly inside the interdendritic region. Mixing studies revealed that the degree of mixing in the pool is enhanced by the stirring. The theoretical calculations show that most of the electromagnetic body force is confined to the magnetic skin depth at the mould wall and the metal-slag interface. Using a previously developed two-dimensional heat transfer model it was not possible to reproduce the experimental pool profiles obtained when stirring was applied.
Applied Science, Faculty of
Materials Engineering, Department of
Graduate
APA, Harvard, Vancouver, ISO, and other styles
5

Chavez, Reyes Xavier A. "Electrochemical Disinfection of Municipal Wastewater using Alternating Current." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1907.

Full text
Abstract:
This research focused on chlorine-free disinfection of wastewater by complying with today's regulations. The equipment used was a continuous flow electrochemical reactor connected to an alternating current (AC) power supply. The electrodes used were made out of titanium coated with iridium oxide. To determine the inactivation of Escherichia Coli, a bacterial count method based on the USEPA method 1603 was used. After several experiments it was determined that electrochemical disinfection using AC was not efficient and economic enough to be classified as a viable alternative to chlorine disinfection. It was demonstrated that chlorine can be produced by electrolysis using AC and that no hydrogen could be noticed as a byproduct of the electrolysis of wastewater. When the results from this investigation were compared to the ones obtained using DC in Acosta (2014), it was determined that the belief that AC and DC are equally efficient at disinfecting wastewater is wrong.
APA, Harvard, Vancouver, ISO, and other styles
6

Salimian, Alireza. "Alternating current electroluminescent properties of zinc sulfide powders." Thesis, University of Greenwich, 2012. http://gala.gre.ac.uk/9154/.

Full text
Abstract:
In order to investigate the alternating current electroluminescent properties of zinc sulfide powders the following experiments were conducted: synthesis of zinc sulfide phosphors (comprised of zinc, sulfur and copper dopant); thermal shocking of phosphor materials (sudden cooling, using liquid nitrogen, of phosphor particles heated up to 500oC) and analysis of their alternating current electroluminescent properties as well as studies of particle crystal structures by synchrotron and conventional X-ray powder diffraction techniques. Inductively coupled plasma mass spectrometry was utilized to investigate the concentration of co-activator atoms within the zinc sulphide crystal lattice. Electroluminescent panels were prepared and the emission properties were evaluated theoretically in order to obtain a mathematical relationship between various parameters involved in the electroluminescent process. Thermal quenching of zinc sulfide phosphor alters its photoluminescent and electroluminescent properties. The dominant wavelength of the material alters from 504 nm to 517 nm. It appears that the blue centres are vulnerable to the thermal quenching procedure carried out as the blue emission deteriorates and the overall blue emission of the material is reduced due to the role that the interstitial Cu+ species play in this mechanism. The interstitial Cu+ is not as stable in its location within the lattice compared to substitutional Cu+ and hence a thermal shock is prone to effect its location or association with the surrounding atoms. The green emission centre, however, appears to be unaffected. Results obtained from layer by layer analysis of the material demonstrate that the surface of the phosphor particles contain most of the copper content (copper to zinc molar ratio of 0.08% in the surface compared to 0.06% at inner levels distributed within the lattice). The location of the outer copper layer may play a key role in the alternating current electroluminescence (ACEL) process; further experiments need to be conducted in order to prove the foregoing hypothesis. Irrespective of the amount of copper impurity (dopnat) initially added to the zinc sulphide precursor, prior to synthesis of the phosphor, during the high temperature firing of the material (above 700˚C) a considerable amount of the copper will be ejected from the lattice and be washed off in the latter steps of the synthesis process (where the newly synthesized phosphor is washed in concentrated ammonia solution); an initial copper content of 1.2% molar ratio is reduced to 0.154%; however, the duration of the high temperature firing is a key factor in the final amount of copper present within the lattice. XRPD experiments of a working ACEL device (i.e., when the AC field is applied across the electroluminescent phosphor) show that the diffraction lines all shift, but remain within the region where broad diffraction intensity is observed for a powder sample (i.e. random orientation). Indeed the sharp diffraction lines are observed to span across each broad diffraction area associated with the sphalerite phase. The panel exhibits a different diffraction pattern when the device is powered in an AC field compared to when it is not exposed to the field. This clearly indicates that the particles possess piezoelectric properties and the electric field causes strain on the crystal lattice. When considering the major drawbacks of ACEL technology, i.e. it’s short life time and degradation characteristics, defining a mathematical model of its emission degradation is a step towards understanding part of the mechanism of the ACEL process. Due to the various number of parameters involved in the phenomenon of electroluminescence (such as particle size, copper content and random distribution of crystal planes) and the fact that emissions arise from certain centres randomly distributed over each phosphor particle, mathematical models are only accurate when they are formulated in relation to the analysis of a particular batch of phosphor sample and used to prepare a particular panel. Hence, no overall mathematical formulation can be produced to measure the emission properties of various ACEL panels produced by different batches of zinc sulfide phosphors. The findings of this research indicate that sample preparation technique which involves addition of raw zinc sulfide to an already copper doped zinc sulfide causes an increase in the occurrence of nano p-n junctions species within the lattice where the cupper locations form the p-type and the n type is formed from the release of some sulfur atoms from zinc sulfide structure during the high temperature firing relative to the conventional phosphor preparation methods. Larger particles have a higher probability of contacting interstitial copper sites during firing and preparation as copper atoms tend to migrate out of the zinc sulfide lattice toward the surface. Hence larger particles (commercial phosphors) demonstrate better emission properties. Thermal quenching affects the interstitial copper sites more than the other luminescent centres formed of substitutional copper sites. Hence the lowered blue emission occurs. Due to the probability of high dispersion of Cu atoms within the ZnS lattice a useful mathematical model cannot easily be developed for an EL panel. EXAFS analysis cannot be fully relied up on in respect of the interstitial copper environment in these phosphors considering that a small fraction of the copper impurity in the phosphor exists at interstitial sites. However, the results from experiments using XANES confirm a change in the electronic configuration of Zn atoms when samples are quenched.
APA, Harvard, Vancouver, ISO, and other styles
7

Tygier, Samuel C. Tenzing. "High current proton fixed-field alternating-gradient accelerator designs." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/high-current-proton-fixedfield-alternatinggradient-accelerator-designs(ce718c72-3875-458f-92d2-1cd496287993).html.

Full text
Abstract:
To make energy production sustainable and reduce carbon dioxide emissions it is necessary to stop using fossil fuels as our primary energy source. The Accelerator Driven Subcritical Reactor (ADSR) could provide safe nuclear power. It uses thorium as fuel, which is more abundant than uranium, and produces less long lived waste. An ADSR uses neutron spallation, caused by a high power proton beam impacting a metal target, to drive and control the reaction. The beam needs to have an energy of around 1 Ge V and a current of 10 mA with a very high reliability, the combination of which is beyond the capabilities of existing particle accelerators. Cyclotrons and synchrotrons both have trouble producing such a beam, while a suitable linac would be several hundred metres long, and expensive. A more compact accelerator design would allow multiple accelerators to be combined to improve reliability. This thesis examines the use of a Fixed-Field Alternating-Gradient (FFAG) accelerator as the proton driver. FFAGs are compact, and can simultaneously achieve higher energies than a cyclotron at higher repetition rates than a synchrotron. However, it is still a challenge to reach the high currents required. A 35 to 400 MeV non-scaling FFAG was designed to demonstrate issues encountered at high currents. Two methods were investigated in order to increase the number of particle bunches that could be simultaneously accelerated. One uses multiple solutions to the harmonic conditions for acceleration, and the second injects bunches after the acceleration has started. Neither was found to give significant practical improvement in current. Space charge is a destructive force at high currents. Software was developed to simulate the effect of space charge in an FFAG using several models. Space charge tune shifts were measured for a range of energies and currents, and peak currents of above 1 A were found to be unstable. In order to provide 10 mA of average current, acceleration would need to occur in around 100 turns, which will require a very rapid RF sweep.
APA, Harvard, Vancouver, ISO, and other styles
8

Aldayel, Abdulaziz A. "Comparison of acute physiological effects between alternating current and pulsed current electrical muscle stimulation." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2010. https://ro.ecu.edu.au/theses/131.

Full text
Abstract:
Electrical muscle stimulation (EMS) is widely used in rehabilitation and sport training, and alternating current and pulsed current EMS are commonly used. However, no systematic comparison between alternating and pulsed current EMS has been made in the previous studies. The main aim of this research was to compare acute physiological responses between the alternating and pulsed current EMS. The secondary purpose of the research was to investigate further muscle damage induced by EMS-evoked isometric contractions. Three experimental studies were conducted in the thesis project together with literature review about EMS.
APA, Harvard, Vancouver, ISO, and other styles
9

Joós, Géza. "The nature of torsional interactions in synchronous generators /." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74033.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Perumal, Ajay Kumar. "Alternating current electroluminescence (AC-EL) with organic light emitting material." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-89750.

Full text
Abstract:
We demonstrate a new approach for fabricating alternating current driven organic electroluminescent devices using the concept of doping in organic semiconductors. Doped charge transport layers are used for generation of charge carriers within the device, hence eliminating the need for injecting charge carriers from external electrodes. The device is an organic-inorganic hybrid: We exploit the mechanical strength and chemical stability of inorganic semiconductors and combine it with better optical properties of organic materials whose emission color can be chemically tuned so that it covers the entire visible spectrum. The device consists of an organic electroluminescence (EL) layer composed of unipolar/ambipolar charge transport materials doped with organic dyes (10 wt% ) as well as molecularly doped charge generation layers enclosed between a pair of transparent insulating metal oxide layers. A transparent indium doped tin oxide (ITO) layer acts as bottom electrode for light outcoupling and Aluminium (Al) as top reflective electrode. The electrodes are for applying field across the device and to charge the device, instead of injection of charge carriers in case of direct current (DC) devices. Bright luminance of up to 5000 cd m-2 is observed when the device is driven with an alternating current (AC) bias. The luminance observed is attributed to charge carrier generation and recombination, leading to formation of excitons within the device, without injection of charge carriers through external electrodes.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Alternating current"

1

Canadian Society of Civil Engineers., ed. Multiphasal alternating currents. [S.l: s.n., 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Systems, Inc Electro-Pure. Alternating current electrocoagulation. Cincinnati, OH: U.S. Environmental Protection Agency, Center for Environmental Research Information, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Duff, John R. Alternating current fundamentals. 3rd ed. Albany, N.Y: Delmar Publishers, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Duff, John R. Alternating current fundamentals. 6th ed. Albany, NY: Delmar Publishers, 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Inc, Electro-Pure Systems, and Center for Environmental Research Information (U.S.), eds. Alternating current electroagulation. Cincinnati, OH: U.S. Environmental Protection Agency, Center for Environmental Research Information, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Duff, John R. Alternating current fundamentals. 4th ed. Albany, N.Y: Delmar Publishers, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

R, Duff John, ed. Alternating current fundamentals. 8th ed. Clifton Park, NY: Delmar Cengage Learning, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

L, Herman Stephen, ed. Alternating current fundamentals. 5th ed. Albany, N.Y: Delmar Publishers, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Electric Power Training Center (U.S.), ed. Alternating current and direct current generators. Golden, Colo: Western Area Power Administration, Electric Power Training Center, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Electric Power Training Center (U.S.), ed. Alternators, alternating-current generators. Golden, Colo: Western Area Power Administration, Electric Power Training Center, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Alternating current"

1

Watson, Keith L. "Alternating Current." In Foundation Science for Engineers, 283–91. London: Macmillan Education UK, 1993. http://dx.doi.org/10.1007/978-1-349-12450-3_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Morris, Noel M. "Alternating current." In Mastering Electronic and Electrical Calculations, 149–82. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-13705-3_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Morris, Noel M. "Alternating Current." In Mastering Electrical Engineering, 191–216. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-18015-8_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Salam, Md Abdus, and Quazi Mehbubar Rahman. "Alternating Current." In Fundamentals of Electrical Circuit Analysis, 237–79. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8624-3_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Gooch, Jan W. "Alternating Current." In Encyclopedic Dictionary of Polymers, 30–31. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_486.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Watson, Keith L. "Alternating Current." In Foundation Science for Engineers, 338–46. London: Macmillan Education UK, 1998. http://dx.doi.org/10.1007/978-1-349-14714-4_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Breithaupt, Jim. "Alternating Current." In Physics, 284–300. London: Macmillan Education UK, 1999. http://dx.doi.org/10.1007/978-1-349-14825-7_21.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Weik, Martin H. "alternating current." In Computer Science and Communications Dictionary, 41. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_555.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bolton, William. "Alternating current." In Engineering Science, 281–300. Seventh edition. | Abingdon, Oxon; New York, NY: Routledge, 2021.: Routledge, 2020. http://dx.doi.org/10.1201/9781003093596-15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rauf, S. Bobby. "Alternating Current." In Electrical Engineering Fundamentals, 87–129. First edition. | Boca Raton : CRC Press, 2021.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429355233-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Alternating current"

1

Druzhinin, Anatoliy, Ihor Ostrovskii, and Iurii Kogut. "Alternating Current Converter." In 2006 International Conference - Modern Problems of Radio Engineering, Telecommunications, and Computer Science. IEEE, 2006. http://dx.doi.org/10.1109/tcset.2006.4404618.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Roesel, John F. "An Improved Alternating Current Motor." In ASME 1987 Citrus Engineering Conference. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/cec1987-3303.

Full text
Abstract:
This paper describes a new approach to alternating current motor design which overcomes many of the disadvantages of conventional designs. In order to place this new design in perspective, the history and performance of conventional motors will be briefly reviewed first. Paper published with permission.
APA, Harvard, Vancouver, ISO, and other styles
3

Anatychuk, L. I., and D. D. Taschuk. "Thermoelectric converters for alternating current standards." In 9TH EUROPEAN CONFERENCE ON THERMOELECTRICS: ECT2011. AIP, 2012. http://dx.doi.org/10.1063/1.4731612.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Storey, Jonathan, Peter R. Wilson, and Darren Bagnall. "The alternating current dynamic photovoltaic array." In 2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG). IEEE, 2013. http://dx.doi.org/10.1109/pedg.2013.6785630.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Haitao Wang, Jingqin Wang, Qishu Bao, and Zhizhou Bao. "Failure Analysis of Alternating Current Contactor." In 2011 International Conference on Measuring Technology and Mechatronics Automation (ICMTMA). IEEE, 2011. http://dx.doi.org/10.1109/icmtma.2011.328.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hu, Xuejun, and Haishu Tan. "Alternating-current polymer light-emitting devices." In Asia-Pacific Optical and Wireless Communications. SPIE, 2004. http://dx.doi.org/10.1117/12.523214.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Stanford, Joshua, Edward O'Brien, and Aaron Meyrick. "5790 Alternating Current Measurement Standard Calibration." In Proposed for presentation at the US Deparment of Energy (DOE) Metrology Managers Meeting held February 1-4, 2021 in Albuquerque, NM, United States. US DOE, 2021. http://dx.doi.org/10.2172/1843103.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Funck, Torsten, and Thomas Spiegel. "Automated setup for calibration of calibrators at alternating voltage and alternating current." In 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016). IEEE, 2016. http://dx.doi.org/10.1109/cpem.2016.7540595.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Boyle, Michael R., and Flavio Frohlich. "EEG feedback-controlled transcranial alternating current stimulation." In 2013 6th International IEEE/EMBS Conference on Neural Engineering (NER). IEEE, 2013. http://dx.doi.org/10.1109/ner.2013.6695891.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Keller, R. R., R. H. Geiss, Y. W. Cheng, and D. T. Read. "Microstructure Evolution During Alternating-Current-Induced Fatigue." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61291.

Full text
Abstract:
Subjecting electronic interconnect lines to high-density, low-frequency alternating current creates cyclic thermomechanical stresses that eventually cause electrical failure. A detailed understanding of the failure process could contribute to both prevention and diagnostics. We tested unpassivated Al-1Si traces on the NIST-2 test chip; these are 3.5 μm wide by 0.5 μm thick by 800 μm long, with a strong (111) as-deposited fiber texture and an initial average grain diameter of approximately 1 μm. We applied rms current densities of 11.7 to 13.2 MA/cm2 at 100 Hz. Resistance changes in the lines indicated that such current densities produce temperature cycles at 200 Hz with amplitude exceeding 100 K. Open circuits occurred in under 10 minutes, with substantial surface damage seen after only one minute. A few failures initiated at lithography defects initially present in the lines, but most were produced by the current alone. In one detailed example presented in this paper, we monitored the damage process by interrupting the current at 10, 20, 40, 80, 160, and 320 s in order to characterize an entire line by scanning electron microscopy and automated electron backscatter diffraction (EBSD); failure took place after 697 s. Results are described in terms of deformation, grain growth, and orientation changes.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Alternating current"

1

Obringer, John W., Brian Kelchner, and Brandon Horne. Mutagenic Effect on Alternating Current Magnetic Fields. Fort Belvoir, VA: Defense Technical Information Center, August 1997. http://dx.doi.org/10.21236/ada328264.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Obringer, John W., Brandon Horne, and Brian Kelchner. Mutagenic Effect on Alternating Current Magnetic Fields. Fort Belvoir, VA: Defense Technical Information Center, August 1997. http://dx.doi.org/10.21236/ada328929.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Obringer, John, Brandon Horne, and Brian Kelchner. Mutagenic Potential of Alternating Current Electric Fields. Fort Belvoir, VA: Defense Technical Information Center, September 1997. http://dx.doi.org/10.21236/ada329378.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

P.F. Schmit and N.J. Fisch. Direct-current-like Phase Space Manipulation Using Chirped Alternating Current Fields. Office of Scientific and Technical Information (OSTI), February 2010. http://dx.doi.org/10.2172/973085.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Lawson, Kurt, and John Beavers. Alternating Current (AC) Impedance Testing of Coated Traycans. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada261720.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Nuqui, Reynaldo, and V. R. Ramanan. Cyber Resilient Flexible Alternating Current Transmission Systems (XFACTS). Office of Scientific and Technical Information (OSTI), March 2022. http://dx.doi.org/10.2172/1873108.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wager, J. F., and S. M. Goodnick. Hot Electron Physics of Alternating-Current Thin-Film Electroluminescent Devices. Fort Belvoir, VA: Defense Technical Information Center, September 1994. http://dx.doi.org/10.21236/ada290528.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Chang, Min Cheol, Marie-Michèle Briand, Mathieu Boudier-Revéret, and Seoyon Yang. Effectiveness of Transcranial Alternating Current Stimulation for Controlling Chronic Pain. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, December 2023. http://dx.doi.org/10.37766/inplasy2023.12.0012.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Buchler, M., H. G. Schoneich, and F. Stalder. DRS04BSS Criteria to Assess the Alternating Current Corrosion Risk of Cathodically Protected Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), January 2004. http://dx.doi.org/10.55274/r0011818.

Full text
Abstract:
This paper addresses the assessment of the corrosion risk of a pipeline due to alternating currents. The state of the art technique is the use of coupons, which simulate a coating fault and which allow to measure the ac-current density and also to evaluate corrosion products and pits. Recently, different criteria to assess the corrosion risk have been proposed that are based on the ratio between ac- and dc-current density or the instantaneous off-potential (high-speed off-potential measurement) measured on a coupon. Furthermore, the charge needed to oxidize corrosion products (under alkaline conditions) on a corroded steel surface indicates the level of metal loss. These criteria are discussed on the basis of field experience from coupons and from alternating current-corrosion pits on high voltage interfered pipelines. Results from long term laboratory corrosion measurements under constant AC and DC load are presented which indicate that not only a reduction of pipe/ground AC potential but also a careful adjustment of cathodic protection level helps to minimize a.c. corrosion rates. Based on the results from cyclic potentiodynamic experiments under alkaline conditions, a basic model explaining AC corrosion on cathodically protected pipelines has been developed.
APA, Harvard, Vancouver, ISO, and other styles
10

Francfort, Jim. Characterize Clustering of Non-Residential Alternating Current Level 2 Electric Vehicle Supply Equipment. Office of Scientific and Technical Information (OSTI), June 2015. http://dx.doi.org/10.2172/1483600.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Alternating current' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography