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Journal articles on the topic 'Electric conductivity'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Aneli, Jimsher, Gennady Zaikov, and Omar Mukbaniani. "Electric Conductivity of Polymer Composites at Mechanical Relaxation." Chemistry & Chemical Technology 5, no. 2 (2011): 187–90. http://dx.doi.org/10.23939/chcht05.02.187.

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2

Rácz, P., and Z. Szüle. "Relationship between the looseness of soil and the electric conductivity." Research in Agricultural Engineering 55, No. 4 (2009): 136–40. http://dx.doi.org/10.17221/18/2008-rae.

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The present article reports on an experiment as part of the research in the frame of which I search after the relationship between the looseness <I>L</I> of soil characterising the operating quality of the chisel-type subsoilers of a medium working depth, and the change in the electric conductivity in the soil caused by the loosening cultivation. The investigation was carried out with the help of the mobile electric-conductivity measuring device – accounted as a novelty in field-land tests – type Veris 3100 with disc electrodes, operating in field-land conditions. As the results of

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3

Kahlweit, M., G. Busse, and J. Winkler. "Electric conductivity in microemulsions." Journal of Chemical Physics 99, no. 7 (1993): 5605–14. http://dx.doi.org/10.1063/1.465953.

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4

Kazemiroodsari, Hadi, Mishac K. Yegian, Akram N. Alshawabkeh, and Seda Gokyer. "Electric Conductivity Probes to Study Change in Degree of Saturation - Bench Top Laboratory Tests." E3S Web of Conferences 195 (2020): 03016. http://dx.doi.org/10.1051/e3sconf/202019503016.

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Sand characteristics such as liquefaction susceptibility can be affected as a result of change in degree of saturation of sand. New liquefaction mitigation technique by inducing partial saturation in sands is introduced by Yegian et al in 2007[1]. This technique requires to monitor changes in degree of saturation of sand. By nature, changes in degree of saturation of sand can lead in changes in its electric conductivity. Electric conductivity is the property of a material that represents its ability to conduct electric current. Fully saturated sand can conduct electric current better than sand

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5

Jiang, Wei Ting. "A General Model for Thermal Conductivity and Electric Conductivity of Nanofluids." Advanced Materials Research 614-615 (December 2012): 529–35. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.529.

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Nanoparticles in nanofluids are in the form of nanoparticle clusters caused by aggregation. In order to calculate the thermal and electric conductivity of the nanofluids, the growth process and three-dimensional space structure of the nanoparticle cluster in the host fluid is simulated, and then the thermal and electric conductivity of the cluster are calculated with the resistance network method. The thermal and electric conductivity of the nanofluid are calculated based on the simulated thermal and electric conductivity of nanoparticle clusters, the volume fraction of nanoparticle clusters t

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6

Рудяк, В. Я., А. В. Минаков та М. И. Пряжников. "Электропроводность наножидкостей с металлическими частицами". Письма в журнал технической физики 45, № 9 (2019): 36. http://dx.doi.org/10.21883/pjtf.2019.09.47712.17720.

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AbstractThe electric conductivity is experimentally studied in nanofluids based on water and ethylene glycol containing copper and aluminum particles. Other properties, such as heat conductivity and rheological characteristics, were evaluated as well. The electric conductivity of nanofluids is shown to increase almost linearly with a nanoparticle concentration, but, unlike the heat conductivity, a gain in electric conductivity is due to a decrease in particle size. In this respect, the mechanisms of electric conductivity and heat conductivity are assumed to have the fundamentally different nat

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7

Wang, Jingxiu. "Electric Conductivity of Lower Solar Atmosphere." International Astronomical Union Colloquium 141 (1993): 465–68. http://dx.doi.org/10.1017/s025292110002964x.

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AbstractElectric conductivity tensor of partly-ionized plasma is deduced. Four atmospheric models are used then to estimate the conductivity in the lower atmosphere. The parallel conductivity reaches its minimum value in the temperature minimum zone, which is 1 to 2 orders smaller than the conductivity of fully-ionized plasmas of the same condition; the effective perpendicular conductivity, or Cowling conductivity, becomes 5 to 6 orders smaller than the fully-ionized value in the lower chromosphere.

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8

Kalashnova, A. V., S. V. Plaksin, E. G. Vovkotrub, and G. Sh Shekhtman. "Electric Conductivity of Lithium Metazirconate." Russian Journal of Electrochemistry 54, no. 9 (2018): 709–13. http://dx.doi.org/10.1134/s1023193518090033.

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9

Jing-Xiang, Zhang, Li Hui, Zhang Xue-Qing, and Liew Kim-Meow. "Electric Conductivity of Phosphorus Nanowires." Chinese Physics Letters 26, no. 5 (2009): 056101. http://dx.doi.org/10.1088/0256-307x/26/5/056101.

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10

Puglisi, Armando, Salvatore Plumari, and Vincenzo Greco. "Electric Conductivity of the QGP." Journal of Physics: Conference Series 612 (May 19, 2015): 012057. http://dx.doi.org/10.1088/1742-6596/612/1/012057.

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11

Nefedov, Vladimir G., Vadim V. Matveev, and Dmytriy G. Korolyanchuk. "INFLUENCE OF FREQUENCY OF ELECTRIC CURRENT ON ELECTRIC CONDUCTIVITY OF THIN FILMS OF ELECTROLYTES." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 2 (2018): 58. http://dx.doi.org/10.6060/tcct.20186102.5592.

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In the work the investigations of the effect of abnormally high electric conductivity of surface of the air-electrolyte interface during electrolytic decomposition of water were continued. Experiments were carried out both at alternating current via the bridge circuit and at direct current in the four-electrode cell. Previously, it was shown that in thin air-bordering electrolyte layers specific conductivity measured in the four-electrode cell during electrolysis of water exceeds the corresponding value measured with the bridge circuit for solutions of sodium hydroxide by 1.5 times, for soluti

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12

Garkushin, Ivan K., Olga V. Lavrenteva, and Yana A. Andreeva. "Relationship of the s1-elements halogenides melts specific electric conductivity with alkali metals specific electric conductivity." Butlerov Communications 60, no. 12 (2019): 116–24. http://dx.doi.org/10.37952/roi-jbc-01/19-60-12-116.

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The paper presents an analytical description of the relationship of the specific electrical conductivity æ of individual alkali metals haloganides melts (MHal) (M – Li, Na, K, Rb, Cs, Fr; Hal – F, Cl, Br, I) and the specific electrical conductivity æ(M) of alkali metal melts for temperatures (Тпл + n) (Tпл – melting temperature K; n = 5, 10, 50, 75, 100, 150, 200° higher melting temperatures of MHal and metals) and the specific electrical conductivity of alkali metals at standard temperature using M.Kh. Karapetyans comparative methods. The relationship of properties æ(MHal при Тпл+n) = f(æ(MHa

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13

Markowski, D., W. Kempiński, M. Kempiński, Z. Trybuła, K. Kaszyńska, and M. Śliwińska-Bartkowiak. "Electric Conductivity of Carbon Nanoparticles Stimulated by Electric Field." Acta Physica Polonica A 118, no. 3 (2010): 457–58. http://dx.doi.org/10.12693/aphyspola.118.457.

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14

Prayitno, T. B., Y. P. Sarwono, E. Budi, M. A. Abdillah, and M. C. Kartika. "Temperature-dependence on thermal electric conductivity in FeCl₂ monolayer with biaxial strain." Journal of Physics: Conference Series 2672, no. 1 (2023): 012009. http://dx.doi.org/10.1088/1742-6596/2672/1/012009.

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Abstract The dependence of thermal electric conductivity on temperature in a 1T-FeCl2 monolayer has been explored using the semi-classical Boltzmann transport theory. We provided the temperatures from near critical temperature up to room temperature. We observed different tendencies of thermal electric conductivity based on the existence of magnetism due to working temperature. As we applied the biaxial strain, we obtained the same contribution from both the magnetic and non-magnetic states to the thermal electric conductivity. We also found that the highest thermal electric conductivity may b

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15

Aneli, Jimsher, Tamaz Natriashvili, and Gennadiy Zaikov. "Structuring and Electric Conductivity of Polymer Composites Pyrolysed at High Temperatures." Vestnik Volgogradskogo Gosudarstvennogo Universiteta. Serija 11. Estestvennye nauki, no. 3 (September 25, 2014): 6–15. http://dx.doi.org/10.15688/jvolsu11.2014.3.1.

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16

Aneli, Jimsher, Timur Natriashvili, and Gennady Zaikov. "Structuring and Electric Conductivity of Polymer Composites Pyrolysed at High Temperatures." Chemistry & Chemical Technology 9, no. 3 (2015): 301–7. http://dx.doi.org/10.23939/chcht09.03.301.

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17

CHARBONNEAU, JOSÉE, ANDRÉ GOSSELIN, and MARC-J. TRUDEL. "INFLUENCE DE LA CONDUCTIVITÉ ÉLECTRIQUE DE LA SOLUTION NUTRITIVE SUR LA CROISSANCE ET LE DÉVELOPPEMENT DE LA TOMATE DE SERRE CULTIVÉE AVEC OU SANS ÉCLAIRAGE D’APPOINT." Canadian Journal of Plant Science 68, no. 1 (1988): 267–76. http://dx.doi.org/10.4141/cjps88-033.

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Tomato plants (Lycopersicon esculentum Mill. ’Vendor’ and ’Carmelo’) were cultivated under different electric conductivities (2, 4 and 6 mS cm−1) of a continuously or intermittently supplied nutrient solution. The plants were grown in an NFT system, with or without supplementary lighting using high-pressure sodium (HPS) lamps. Raising electric conductivity reduced the shoot dry weight but increased root dry weight. The number of fruit on the first truss and the fruit weight were not affected significantly by electric conductivities. The use of supplementary lighting with an electric conductivi

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18

Jörgens, Christoph, and Markus Clemens. "Modeling the electric field at interfaces and surfaces in high-voltage cable systems." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 39, no. 5 (2020): 1099–111. http://dx.doi.org/10.1108/compel-01-2020-0041.

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Purpose In high-voltage direct current (HVDC) cable systems, space charges accumulate because of the constant applied voltage and the nonlinear electric conductivity of the insulating material. The change in the charge distribution results in a slowly time-varying electric field. Space charges accumulate within the insulation bulk and at interfaces. With an operation time of several years of HVDC systems, typically the stationary electric field is of interest. The purpose of this study is to investigate the influence of interfaces on the stationary electric field stress and space charge densit

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19

Khorasani, Amir. "A numerical study on the effect of conductivity change in cell kill distribution in irreversible electroporation." Polish Journal of Medical Physics and Engineering 26, no. 2 (2020): 69–76. http://dx.doi.org/10.2478/pjmpe-2020-0008.

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AbstractIntroduction: irreversible electroporation (IRE) is a tissue ablation technique and physical process used to kill the undesirable cells. In the IRE process by mathematical modelling we can calculate the cell kill probability and distribution inside the tissue. The purpose of the study is to determine the influence of electric conductivity change in the IRE process into the cell kill probability and distribution.Methods: cell death probability and electric conductivity were calculated with COMSOL Multiphysics software package. 8 pulses with a frequency of 1 Hz, pulse width of 100 µs and

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20

Liu, Jin, Dong Wei Li, and Zhong Hui Xu. "Research on the Impact of Different VG on Electrokinetic Removal of Heavy Metal Wastes." Applied Mechanics and Materials 71-78 (July 2011): 1099–103. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.1099.

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This paper aims to investigate the effects of different VG (voltage gradient) on electrokinetic removal technology, and examine electrode pH, electric conductivity, voltage drop in the sample, electric current, and the electroosmotic flow. It is indicated that with the increase of VG, the electrolytic reaction rate accelerates during the electric removal experiment, which has affected both system current and the pH value & electric conductivity of electrolyte solutions. The higher VG is, the faster the electrolyte solution pH varies；the higher VG is, the faster the electric conductivity ch

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21

Gou, Bin, Je Hyun Lee, Ji Ho Gu, Kwang Jun Euh, and Seung Zeon Han. "Study on Micro-Hardness and Electrical Conductivity in as Cast Cu-Fe-P Alloys." Materials Science Forum 620-622 (April 2009): 267–70. http://dx.doi.org/10.4028/www.scientific.net/msf.620-622.267.

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The micro-hardness and electric conductivity was studied in as cast alloy Cu-Fe-P alloys which were solution treated at 980°C and aging treated at 400-800°C for 1-20 hours. The micro-hardness peak value was 180 HV and the conductivity peak value was 65% IACS. The hardness and the electric conductivity all depended on precipitation principally. The addition of C in Cu-Fe-P alloy reduced the grain size and accelerated precipitation which resulted in enhancing hardness and electric conductivity together.

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22

Megahed, Sandra, Florian Fischer, Martin Nell, et al. "Manufacturing of Pure Copper with Electron Beam Melting and the Effect of Thermal and Abrasive Post-Processing on Microstructure and Electric Conductivity." Materials 16, no. 1 (2022): 73. http://dx.doi.org/10.3390/ma16010073.

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Due to the increasing demand for electrification in the automotive sector, the interest in the manufacturing and processing of pure Copper (Cu; purity 99.99%) is also increasing. Laser-based technologies have proven to be challenging due to Cu’s high optical reflectivity. Processing pure Cu with Electron Beam Melting (EBM) is a promising manufacturing route, allowing for high design freedom. The highest priority is to achieve outstanding thermal and electric conductivity in manufactured Cu components. Chemical contamination or manufacturing defects, such as porosity, significantly reduce the t

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23

Chen, Qing Guo, He Qian Liu, Xiang Li Zhuge, Ming He Chi, and Xin Lao Wei. "Analysis of Electric Field Homogenization of Converter Transformer Barrier System Based on Nano Modification of Pressboard." Advanced Materials Research 981 (July 2014): 940–45. http://dx.doi.org/10.4028/www.scientific.net/amr.981.940.

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In order to solve the problem of non-uniform electric field distribution in converter transformer barrier system caused by conductivity difference between the transformer oil and pressboard, the SiC(silicon carbide) modified pressboard was developed by nano doping method. The conductivity of modified pressboard was measured. The measuring results show that the conductivity of modified pressboard increases exponentially with the increase of nano SiC doping ratio. The electric field strength has obvious influence on conductivity at high nano doping ratio, which shows great nonlinear characterist

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24

Poznyak, I., A. Pechenkov, and A. Shatunov. "Electric conductivity measurement of oxides melts." Magnetohydrodynamics 43, no. 2 (2007): 221–28. http://dx.doi.org/10.22364/mhd.43.2.10.

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25

Salem, R. R. "To the electric conductivity of solutions." Protection of Metals 42, no. 1 (2006): 60–65. http://dx.doi.org/10.1134/s0033173206010115.

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26

Likalter, Alexander. "Electric conductivity of expanded transition metals." Physica Scripta 55, no. 1 (1997): 114–18. http://dx.doi.org/10.1088/0031-8949/55/1/023.

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27

Firlej, L., A. Zahab, F. Brocard, and P. Bernier. "Electric conductivity in C70 thin films." Synthetic Metals 70, no. 1-3 (1995): 1373–74. http://dx.doi.org/10.1016/0379-6779(94)02883-z.

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28

Asinovskii, E. I., and V. V. Markovets. "The limiting electric conductivity of plasma." Physics Letters A 319, no. 5-6 (2003): 510–13. http://dx.doi.org/10.1016/j.physleta.2003.11.004.

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29

Grabar, A. A. "Light-induced electric conductivity in sn2P2S6." Ferroelectrics 192, no. 1 (1997): 155–59. http://dx.doi.org/10.1080/00150199708216184.

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30

Arutyunov, Konstantin Yu, Anatoli S. Gurski, Vladimir V. Artemov, et al. "Induced electric conductivity in organic polymers." Beilstein Journal of Nanotechnology 13 (December 19, 2022): 1551–57. http://dx.doi.org/10.3762/bjnano.13.128.

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Poly(diphenylene phthalide) (PDP) belongs to the class of carbocyclic organic electroactive polymers, which exhibits electric conductive properties when an external electric field and/or mechanical stress is applied. In this work, the transport properties of thin-film layered lead–PDP–lead structures were experimentally studied in a wide temperature range. At sufficiently high temperatures, the current voltage characteristics are satisfactorily described in terms of the injection model of currents limited by the space charge. At temperatures below ≈8 K, a number of samples exhibit features tha

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31

Jung, Young Joon, Young Seok Kim, Kyu Ho Lee, Tae Ho Kim, and Bong Ki Ryu. "Analysis of Electric Conductive Activation Energy from the Electric Conductivity of Silicate and Borate Glasses." Key Engineering Materials 368-372 (February 2008): 1451–53. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1451.

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This work is to compare the electric conductive activation energies with increasing Na2O in SiO2 and B2O3 glasses. The electrical conductivity is measured by TER2000 analyzer and it is compared with value calculated by Arrhenius equation. The conductivity of SiO2 system glasses is higher than B2O3 system glasses, and the highest value is 1.36 × 10-4 cm-1 in 60SiO2-40Na2O glass. The activation energy from conductivity is proportion to temperature and inverse proportion to Na2O contents. The activation energy is analyzed from density and CTE (thermal expansion coefficient).

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32

Zhang, Li Peng, Xian Jin Yu, Zhi Wei Ge, Yun Hui Dong, Dang Gang Li, and Ya Li Zhang. "Research on Properties of SiC Coating Inert Anode for Aluminum Electrolysis." Materials Science Forum 686 (June 2011): 623–29. http://dx.doi.org/10.4028/www.scientific.net/msf.686.623.

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The carbon composite materials with silicon carbide coating were prepared for aluminum electrolysis as inert anode. The oxidation resistance, corrosion resistance and electrical conductivity are researched respectively. The results showed that the inert anode had high anti-oxidation, corrosion resistance and high conductivity. The oxidation kinetics curve of the material obeys typical line-logarithmic law. The corrosion occurs mainly before 25 hours. The electric conductivity was stable and good, had the electric conductivity property of the semiconductor. The conductivity increased with tempe

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33

Shablovskii, Yaroslav Olegovich. "Conductivity of solid electrochemically inert polymers." Electrochemical Energetics 11, no. 2 (2011): 87–92. http://dx.doi.org/10.18500/1608-4039-2011-11-2-87-92.

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Theoretical research of conductivity of polymeric insulators in the normal state and at emergency is carried out. Analytical description of temperature and electric effects on the normal conductivity of a polymer and on its electric longevity is given.

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34

Neagu, Eugen R., and José N. Marat-Mendes. "Electric Field Strength Dependent Electric Conductivity in Highly Insulating Materials." Materials Science Forum 514-516 (May 2006): 920–24. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.920.

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The electric conductivity σ in highly insulating materials is determined by the equilibrium thermally generated carriers and by the injected carriers. The injected excess electrons will dominate the thermally generated electrons when the total number of injected electrons substantially exceeds the total number of initially empty electron traps existing in the material. Under these circumstances the electrical charge transport mechanism is no longer ohmic. In order to analyze the dependence of σ upon injected/trapped charge, isothermal and non-isothermal currents in Teflon FEP have been investi

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35

Hosseini, Seyed Hossein, Amir Abbas Kazemi, and Seyed Arash Hosseini. "Preparation of Polycarbazole Nanofibers Using an Electric Field and the Investigation of Its Electrical Conductivity." Nanomanufacturing 3, no. 1 (2023): 113–22. http://dx.doi.org/10.3390/nanomanufacturing3010007.

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In conventional chemical and electrochemical oxidation methods, it is very difficult to control the active centers, and the average prepared polymers are short and wide. The use of an electric field creates the most stable intermediate form of active centers, as well as permitting a longer half-life. Therefore, this increases the physical resistance and electrical conductivity of the polymer. In this paper, polycarbazole nanofibers were prepared using an electric field, reporting on its influences on the polymerization of carbazole. Therefore, its electrical conductivity and some physical prop

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36

Liu, Shili, Wei Wei, Tao Liu, et al. "Conductivity Characterization of Insulation and Its Effects on the Calculation of the Electric Field Distribution in HVDC Cables." Mathematical Problems in Engineering 2021 (February 17, 2021): 1–13. http://dx.doi.org/10.1155/2021/6647731.

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The calculation of an electric field distribution provides the basis for the structural design of the insulation, and an accurate characterization of conductivity as a function of temperature and electric field forms an important basis for the simulation of the electric field distribution in HVDC (high-voltage direct current) cables. However, the conductivity functions that describe the insulating materials used for HVDC cables in different studies are different, and very little has been reported regarding how to choose the most accurate function. In this work, the conductivity of insulating m

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37

Studenyak, I. P. "electric conductivity studies of composites based on (Cu1-xAgx)6PS5I superionic conductors." Semiconductor Physics Quantum Electronics and Optoelectronics 17, no. 4 (2014): 425–28. http://dx.doi.org/10.15407/spqeo17.04.425.

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38

Alfeel, Faten, Fowzi Awad, and Fadi Qamar. "Changes of Thermal Conductivity , Optical Conductivity and Electric Conductivity of Porous Silicon with Porosity." Journal of New Technology and Materials 3, no. 1 (2013): 56–60. http://dx.doi.org/10.12816/0010281.

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39

Mi, Yan, Yiqin Peng, Wentao Liu, Lei Deng, and Benxiang Shu. "The Influence of Microsecond Pulsed Electric Field and Direct Current Electric Field on the Orientation Angle of Boron Nitride Nanosheets and the Thermal Conductivity of Epoxy Resin Composites." Micromachines 16, no. 4 (2025): 413. https://doi.org/10.3390/mi16040413.

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The electric field orientation method effectively promotes the orientation and arrangement of BN nanosheets, forming a thermal conduction network and enhancing the thermal conductivity of the composite material. In this study, microsecond pulsed electric field and direct current electric field were applied to induce the orientation and arrangement of BN nanosheets and improve the thermal conductivity of epoxy resin composites. Under a microsecond pulsed electric field of 50 Hz, 1.5 μs, and 8 kV/mm, the average orientation angle of BN nanosheets increased by 147.7%, and the thermal conductivity

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40

Khorasani, Amir, Seyed Mohammad Firoozabadi, and Zeinab Shankayi. "Conductivity change with needle electrode during high frequency irreversible electroporation: a finite element study." Polish Journal of Medical Physics and Engineering 25, no. 4 (2019): 237–42. http://dx.doi.org/10.2478/pjmpe-2019-0031.

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Abstract Irreversible electroporation (IRE) is a process in which the cell membrane is damaged and leads to cell death. IRE has been used as a minimally invasive ablation tool. This process is affected by some factors. The most important factor is the electric field distribution inside the tissue. The electric field distribution depends on the electric pulse parameters and tissue properties, such as the electrical conductivity of tissue. The present study focuses on evaluating the tissue conductivity change due to high-frequency and low-voltage (HFLV) as well as low-frequency and high-voltage

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41

Pathan, TS, and SE Shinde. "Water quality Parameters in Sindphana dam near Shirur Kasar, Beed District, Maharashtra State, India." Bangladesh Journal of Zoology 49, no. 3 (2022): 403–10. http://dx.doi.org/10.3329/bjz.v49i3.58514.

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Water analysis is essential to preserve and protect the natural ecosystem, which depends on their physical, chemical and biological characteristics; these are directly linked with human welfare. This study was evaluated the physicochemical features of water and their relationships in Sindphana Dam near Shirur Kasar, Breed district, Maharashtra state, India between January and December 2012. This study shows the water quality parameters were fluctuated during the summer, monsoon and winter seasons in Sindphana Dam. In this study, air temperature was positively related to water temperature, tran

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42

Fang, Zhi Gang, and Chun Fang. "Novel Radar Absorbing Materials with Broad Absorbing Band: Carbon Foams." Applied Mechanics and Materials 26-28 (June 2010): 246–49. http://dx.doi.org/10.4028/www.scientific.net/amm.26-28.246.

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Carbon foams were prepared by a polymer sponge replication method and their microwave absorbing properties were investigated in this paper. It was found that the electric conductivity of carbon foams increases quickly with the improvement of carbonization temperatures. Moreover, the electric conductivity of carbon foams strongly affects their microwave absorbing performances. As the electric conductivity increases from 0.02 S/m to 1.03 S/m, the dominant electromagnetic behavior of carbon foams changes from transmission to reflection with regard to the incident electromagnetic wave. The best mi

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43

Li, Yuan, Kai Zhou, Guangya Zhu, Mingzhi Li, Shiyu Li, and Jiangong Zhang. "Study on the Influence of Temperature, Moisture and Electric Field on the Electrical Conductivity of Oil-Impregnated Pressboard." Energies 12, no. 16 (2019): 3136. http://dx.doi.org/10.3390/en12163136.

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The main insulation of converter transformers consists of transformer oil and oil-impregnated pressboard. Under operating conditions, the valve-side winding of the converter transformer is subject to DC voltage components. Therefore, studies on the characteristics of oil-impregnated pressboard conductivity are necessary. In this paper, the temperature, moisture and electric field dependency of pressboard conductivity are investigated based on a specially designed three-electrode experimental chamber, which allows for a variation in temperature ranging from 25 °C to 120 °C and an electric field

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44

Wang, Yi Chun, Xiao Xia Sun, Xiao Rong Tang, and Fa Cheng Wang. "Investigation of Thermal Conductivity of Alumina/Silicone Oil Electrorheological Fluids." Advanced Materials Research 129-131 (August 2010): 421–25. http://dx.doi.org/10.4028/www.scientific.net/amr.129-131.421.

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Electrorheological (ER) fluids are new materials with good properties such as dielectric constant, dielectric loss or conductivity, which display remarkable rheological behavior, being able to convert rapidly and repeatedly from a liquid to solid when an electric field is applied or removed. In this study, suspensions of alumina (A) were prepared in silicone oil (SO). The effects of electric field strength and temperature of the suspensions on thermal conductivity were determined. Thermal conductivity measurement in different conditions was carried out via experimental instrument with high-vol

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Li, Bao Ping, Ben Niu, Jie Qiang Wang, Ping Li, and Sun Hao Wang. "Fabrication and Properties of Aluminum Nitide Ceramics Doped Carbon Nanotubes." Materials Science Forum 610-613 (January 2009): 559–62. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.559.

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Aluminum nitride ceramics doped carbon nanotubes were fabricated by dispersed multi-walled carbon nanotubes (MWNTs) into AlN powders homogenously. The densification, electric resistance, thermal conductivity and relative dielectric constant of AlN ceramics were investigated. It was found that MWNTs additives could purify the grain boundaries. Furthermore, it induced the increase of the thermal conductivity and the decrease of the relative dielectric constant. However, the linear shrinkage and electric resistance decreased with increasing MWNTs amount. AlN ceramics with high thermal conductivit

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Zhu, Yankai, Gang Bai, Wei Li, and Cunfa Gao. "Phase-field simulation of nonvolatile ferroelectric-domain-wall memory." Journal of Applied Physics 132, no. 23 (2022): 234102. http://dx.doi.org/10.1063/5.0123297.

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Ferroelectric domain walls differ in their electrical conductivity under different electric and elastic boundary conditions, and this performance can be used to design memories. A phase-field model is developed to explore the effect of elastic, temperature, and toroidal electric fields on the electrical conductivity for a prototype domain-wall memory unit embedded in a center-type quadrant topological domain structure. It shows that the toroidal electric field can switch two states of the domain wall with high and low conductivity repeatedly, and the conductivity can be tuned by the temperatur

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Kaminskii, V. M., Z. D. Kovalyuk, V. I. Ivanov, I. G. Tkachyuk, and V. V. Netyaga. "Electrical Properties of Cd Doped InSe Crystals." Фізика і хімія твердого тіла 19, no. 2 (2019): 159–62. http://dx.doi.org/10.15330/pcss.19.2.159-162.

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The measurements of electrical conductivity along (alternating electric field) and across (direct electric field)the crystallographic C axis of Cd‐doped indium selenide single crystals are carried out. The parameters of thehopping conductivity of InSe <Cd> are calculated.

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Yang, Wei, Carlos Torres-Verdín, Junsheng Hou, and Zhiyi (Ian) Zhang. "1D subsurface electromagnetic fields excited by energized steel casing." GEOPHYSICS 74, no. 4 (2009): E159—E180. http://dx.doi.org/10.1190/1.3131382.

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We use numerical simulations to investigate the possibility of enabling steel-cased wells as galvanic sources to detect and quantify spatial variations of electrical conductivity in the subsurface. The study assumes a vertical steel-cased well that penetrates electrically anisotropic horizontal layers. Simulations include a steel-cased vertical well with a finite-length thin wire of piecewise-constant electric conductivity and magnetic permeability. The steel-cased well is energized at the surface or within the borehole at an arbitrary depth with an electrode connected to a current source of v

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Kudryashov, M. A., A. A. Logunov, L. A. Mochalov, et al. "Hopping Conductivity and Dielectric Relaxations in Ag/PAN Nanocomposites." Polymers 13, no. 19 (2021): 3251. http://dx.doi.org/10.3390/polym13193251.

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The dependence of the conductivity and electric modulus of silver/polyacrylonitrile nanocomposites on the frequency of an alternating electric field has been studied at different temperatures and starting mixture AgNO3 contents. The frequency dependences on the conductivity of the nanocomposites in the range of 103–106 Hz are in good agreement with the power law f0.8. The observed relaxation maxima in the relation of the imaginary part of the electric modulus on the frequency can be explained by interfacial polarization. It was shown that the frequency dispersions of conductivity and electric

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Uddin, M. J. "Effect of Variable Electric Conductivity on Radiative Heat Transfer Flow Along a Vertical Plate of Micropolar Fluid With Variable Heat Flux and Uniform Source (or Sink) in a Porous Media." DIU Journal of Science & Technology 8, no. 2 (2024): 51–60. https://doi.org/10.5281/zenodo.13761542.

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A two-dimensional steady convective flow of a micropolar fluid past a vertical porous flat plate in the presence of radiation with variable heat flux has been analyzed numerically. The local similarity solutions for the flow, velocity profile, microrotation and heat transfer characteristics are illustrated graphically for various parameters entering into the problems. The effects of the pertinent parameters on the local skin friction coefficient, plate couple stress and the heat transfer are also calculated. Effect of variable electric conductivity and constant electric conductivity has been a

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