Готові списки джерел за темами / Relative magnetic permeability

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Добірка наукової літератури з теми "Relative magnetic permeability"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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Статті в журналах з теми "Relative magnetic permeability"

Zhou, Sui Hua, Zhi Yi Chen, and Shi Min Feng. "Improvement Methods of Apparent Permeability of Ferromagnetic Core." Advanced Materials Research 712-715 (June 2013): 1876–80. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1876.

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The performance of induction coil magnetic sensors , which usually have large dimensions and heavy weights, is mainly decided by apparent permeability of the core. But flux concentrator is a effective equipment to improve apparent permeability of the core, which will hardly increase dimensions and weights of magnetic sensors. Firstly, mathematical equations of apparent permeability are explained and influencing factors are analysed. Then influencing degrees of different parameters of the flux concentrator are simulated by Maxwell 2D/3D. The results are shown as follows. (a) The larger diameter

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Bastola, Anil K., Milan Paudel, and Lin Li. "Magnetic circuit analysis to obtain the magnetic permeability of magnetorheological elastomers." Journal of Intelligent Material Systems and Structures 29, no. 14 (2018): 2946–53. http://dx.doi.org/10.1177/1045389x18781046.

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The magnetic permeability of magnetorheological elastomers must be known for their long-term use in the actual engineering systems. In this article, the magnetic permeability of both isotropic and anisotropic magnetorheological elastomers has been determined using a new method. The magnetic induction was measured and a closed magnetic circuit analysis was carried out to obtain the magnetic permeability of magnetorheological elastomers for both isotropic and anisotropic magnetorheological elastomers with 10%–50% volume concentration of carbonyl iron particles. The magnetic permeability was incr

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Chandra, Bahadur Khadka. "Relative Nature of Electric Permittivity and Magnetic Permeability of Electromagnetic Wave." Indian Journal of Advanced Physics (IJAP) 2, no. 1 (2022): 17–25. https://doi.org/10.54105/ijap.C1021.041322.

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<strong>Abstract: </strong>This research is about the special theory of relativity on electric permittivity and magnetic permeability of electromagnetic wave. For this, Four Maxwell's electromagnetic equations play an important role. James Clerk Maxwell suggested that the light travel as electromagnetic wave which require no material medium for propagation. The speed of light (C) in free space is always constant and is independent of the speed of source or observer or the relative motion of the inertial system and has velocity 'C' given by. So velocity of electromagnetic waves depe

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Ding, Chao, Yunhui Mei, Khai D. T. Ngo, and Guoquan Lu. "A (Permalloy + NiZn Ferrite) Moldable Magnetic Composite for Heterogeneous Integration of Power Electronics." Materials 12, no. 12 (2019): 1999. http://dx.doi.org/10.3390/ma12121999.

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Soft magnetic moldable composites (SM2Cs) would be ideally suited for the integration of magnetic components in power electronic converters because they can be formed into magnetic cores by low-temperature and pressure-less processing. However, most SM2Cs have low relative magnetic permeability, typically less than 30, and high core-loss densities at switching frequencies over 1 MHz. To improve their magnetic properties, we combine powders of Permalloy and a NiZn ferrite with an acrylic polymer to formulate a paste of SM2C. The paste can be molded and then cured below 200 °C without pressure t

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Katoh, Tetsuo, Hiroki Takase, and Yasushi Ohshima. "Relative Permeability of Iron-Chromium Magnetic Alloys in Alternating Magnetic Field." DENKI-SEIKO[ELECTRIC FURNACE STEEL] 64, no. 4 (1993): 252–59. http://dx.doi.org/10.4262/denkiseiko.64.252.

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Sandulyak, Alexander V., Roman Y. Tkachenko, Darya A. Sandulyak, Maria N. Polismakova, Anna A. Sandulyak, and Vera A. Ershova. "Analysis of dependence between magnetic properties of granulated ferromagnetic specimens and relation of its length to diameter." Izmeritel`naya Tekhnika, no. 6 (2020): 46–51. http://dx.doi.org/10.32446/0368-1025it.2020-6-46-51.

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Paper studies the problems about experimental determining magnetic parameters of nonuniform granular magnetics. It has been noted that the existing shortage of direct and (or) indirect experimental data on the magnetic properties of granular ferromagnetic specimens with different values of a relative length, in particular, has a negative impact on the validity of the requirements and decisions to create and ensure the performance of relevant functional elements, movable operating elements of various equipments and devices. By the example of cylindrical specimens of balls with the range of rela

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Li, Xiao Yang, and Zan Dong Han. "Effect of Uniaxial Stress on Magnetic Permeability and Magnetic Loss of Low-Carbon Steel in Weak Alternating Magnetic Field." Applied Mechanics and Materials 678 (October 2014): 220–27. http://dx.doi.org/10.4028/www.scientific.net/amm.678.220.

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The inverse magnetostrictive effect provides a chance to detect the stress by measuring some magnetic parameters. So it is important to learn the effect of stress on some magnetic parameters. A measuring system to measure magnetic permeability and magnetic loss and a device to load uniaxial tension and pressure stress were developed. The result shows that magnetic permeability and magnetic loss increase with uniaxial tension stress increase and decreases with uniaxial pressure stress increase. It is also concluded that the relative change of magnetic permeability and magnetic loss decrease wit

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Володько, А. В., С. М. Фёдоров, Е. А. Ищенко, М. А. Сиваш, Л. В. Сопина, and А. В. Бунина. "MINIMIZING THE EFFECTIVE AREA OF SCATTERING BY MEANS OF CHANGING THE RELATIVE MAGNETIC PERMEABILITY." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 1 (April 19, 2021): 85–88. http://dx.doi.org/10.36622/vstu.2021.17.1.013.

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Исследуется зависимость эффективной площади рассеяния (ЭПР) от относительной магнитной проницаемости материала, из которого изготавливается структура. В качестве тела моделирования был выбран шар, который изготовлен из диэлектрического материала, у которого возможно выполнять изменение относительной магнитной проницаемости. По полученным результатам моделирования построены графики зависимости максимального значения моностатической ЭПР от частоты, а также от относительной магнитной проницаемости среды. Было показано, что с увеличением относительной магнитной проницаемости материала изготовления

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Khadka, Chandra Bahadur. "Relative Nature of Electric Permittivity and Magnetic Permeability of Electromagnetic Wave." Indian Journal of Advanced Physics 1, no. 3 (2022): 17–25. http://dx.doi.org/10.54105/ijap.c1021.041322.

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This research is about the special theory of relativity on electric permittivity and magnetic permeability of electromagnetic wave. For this, Four Maxwell's electromagnetic equations play an important role. James Clerk Maxwell suggested that the light travel as electromagnetic wave which require no material medium for propagation. The speed of light (C) in free space is always constant and is independent of the speed of source or observer or the relative motion of the inertial system and has velocity 'C' given by . So velocity of electromagnetic waves depend on obsolute magnetic permeability a

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Katiyar, Anurag Kumar, Alok Prakash, Antim Dangi, and Satya Kesh Dubey. "Development and validation of a low magnetic permeability measurement setup." Review of Scientific Instruments 93, no. 11 (2022): 114701. http://dx.doi.org/10.1063/5.0124348.

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Measurement of relative permeability has a significant role in deciding the suitability of magnetic material for various industrial applications. Several developments and modifications have been made that can directly or indirectly measure the permeability of such materials. However, these developments suffer from various limitations, such as low accuracy, poor resolution, and high cost of measurement. In this work, a new measurement setup has been developed to precisely measure relative permeability in the range of 1–2. The setup has been designed based on the flux metric (solenoid) method in

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Більше джерел

Дисертації з теми "Relative magnetic permeability"

Karaman, Turker. "Prediction Of Multiphase Flow Properties From Nuclear Magnetic Resonance Imaging." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610382/index.pdf.

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In this study a hybrid Pore Network (PN) model that simulates two-phase (water-oil) drainage and imbibition mechanisms is developed. The developed model produces Nuclear Magnetic Resonance (NMR) T2 relaxation times using correlations available in the literature. The developed PN was calibrated using experimental relative permeability data obtained for Berea Sandstone, Kuzey Marmara Limestone, Yenik&ouml<br>y Dolostone and Dolomitic Limestone core plugs. Pore network body and throat parameters were obtained from serial computerized tomography scans and thin section images. It was observed that

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Algadey, Tarig. "Investigation of Negative Refractive Index in Isotropic Chiral Metamaterials Under First and Second-Order Material Dispersion With and Without Conductive Loss." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1460819619.

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Шібан, Тамер. "Електромагнітний багатопараметровий перетворювач з просторово-періодичним полем для контролю циліндричних виробів". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41998.

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У дисертаційній роботі представлені науково-технічні результати дослідження електромагнітного багатопараметрового перетворювача для визначення параметрів циліндричних металевих виробів, принцип роботи якого ґрунтується на виділенні амплітуди та фази просторових гармонік неоднорідного магнітного поля, представленого у вигляді ряду Фур'є. Об'єкт дослідження достатньо повно описаний в науковій літературі. Показано, що подальше збільшення інформаційних параметрів, які контролюються одним перетворювачем може здійснюватися декількома шляхами. Наприклад, використання для живлення перетворювача струмо

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Дисертація на здобуття наукового ступеня кандидата технічних наук (доктора філософії) зі спеціальності 05.11.13 – прилади і методи контролю та визначення складу речовин. Національний технічний університет "Харківський політехнічний інститут", Харків, 2019. В роботі розроблена фізико-математична модель електромагнітного перетворювача з неоднорідним розподілом електромагнітного поля провідника зі струмом, розташованого уздовж бічної поверхні циліндричного виробу на деякій відстані d від центра металевого циліндра радіуса a. Отримано математичні вирази для визначення напруженості магнітного поля

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Частини книг з теми "Relative magnetic permeability"

Weik, Martin H. "relative magnetic permeability." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_15952.

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Genenko, Yuri, and Hermann Rauh. "Meissner state of thin superconductors in nonideal paramagnetic environments." In Electromagnetics of Superconductor/Paramagnet Heterostructures. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780191782855.003.0006.

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Abstract In this Chapter, thin type-II superconductor strips, tubes or rings carrying a transport current in the Meissner state are considered in the presence of paramagnetic environments of finite magnetic permeability and finite size. Building on some of the model configurations for a thin superconductor strip analyzed in Chapter 3 and also introducing thin superconductors of tubular and annular shapes, the emphasis here is to test the quality of results obtained when idealized conditions prevail and, at the same time, identify regimes where new traits appear. Particularly, it is demonstrate

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Jolfaei Mohsen, Shen Jialong, Smith Andrew, Zhou Lei, and Davis Claire. "EM Sensor System for Characterisation of Advanced High Strength Strip Steels." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2018. https://doi.org/10.3233/978-1-61499-836-5-49.

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In order to obtain accurate quality control of steel products, it is desirable to be able to monitor the mechanical properties non-destructively. This study proposes using an electromagnetic (EM) sensor, suitable for use on strip samples, as a tool for non-destructive steel characterisation, in particular phase balance and grain size in dual phase (DP) steels and hence strength. It is known that the low frequency inductance measured using an EM sensor depends on the relative permeability of the sample and that the permeability is affected by microstructural features (i.e. phase fraction/distri

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Fiske, Thomas, Halit S. Gokturk, Rahmi Yazici, and Dilhan M. Kalyon. "Relative Magnetic Permeability of Injection Molded Composites as Affected by the Flow Induced Orientation of Ferromagnetic Particles." In Imaging and Image Analysis Applications for Plastics. Elsevier, 1999. http://dx.doi.org/10.1016/b978-188420781-5.50018-8.

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Yurdakul, Emrecan, Ali İmer, and Mustafa Cihan. "Timing and Nature of Mineralization and Associated Hydrothermal Alteration at the Öksüt High-Sulfidation Epithermal Au-Cu Deposit (Kayseri Province, Central Anatolia)." In Tectonomagmatic Influences on Metallogeny and Hydrothermal Ore Deposits: A Tribute to Jeremy P. Richards (Volume I). Society of Economic Geologists, 2021. http://dx.doi.org/10.5382/sp.24.04.

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ABSTRACT Öksüt is a breccia-hosted high-sulfidation epithermal gold-copper deposit, situated within the Develidağ Volcanic Complex in south-central Anatolia. The volcanic complex, exposed on the northern edge of the Tauride range, is largely made up of late Miocene andesitic to dacitic porphyries, covered by a succession of Pliocene basalts and basaltic andesites. A series of N-S- to NNW-trending faults of the regional central Anatolian fault zone partly cut and border the volcanic complex to the east and west. Mineralization at Öksüt follows a predominant north-northwest trend that correlates

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Тези доповідей конференцій з теми "Relative magnetic permeability"

Dimitrov, Rosen. "Experimental Evaluation of a Magnetic Core's Relative Permeability and Core Loss Coefficients." In 2025 19th Conference on Electrical Machines, Drives and Power Systems (ELMA). IEEE, 2025. https://doi.org/10.1109/elma65795.2025.11083447.

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Shi, Xiaoling, Hwaider Lin, Hui Lu, Rui Huang, and Nian X. Sun. "Millimeter Thick Magnetic Print Circuit Boards with a High Relative Permeability of 50~150 and Related Devices." In 2024 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2024. https://doi.org/10.1109/ecce55643.2024.10861315.

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Adam, Robert, Jesus Felix-Servin, Wei Wang, and Max Deffenbaugh. "New Logging Technique for Direct Measurement of Relative Permeability." In International Petroleum Technology Conference. IPTC, 2022. http://dx.doi.org/10.2523/iptc-22375-ea.

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Abstract A measurement system capable of in-situ measurements of formation permeability is described. The measurement method relies upon imaging the distribution of magnetic permeability doped fluid injected into a wellbore system through mutual inductance measurements between pairs of coils, and relating the change in distribution of this fluid over time to a direct measurement of formation phase permeability. Analysis of the mutual inductance measurement method shows a unique response to distributions of magnetic permeability for various coil spacings, and insensitivity to other confounding

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Cossale, M., G. Bramerdorfer, G. Goldbeck, M. Kitzberger, D. Andessner, and W. Amrhein. "Modeling the Degradation of Relative Permeability in Soft Magnetic Materials." In 2018 IEEE Transportation Electrification Conference and Expo (ITEC). IEEE, 2018. http://dx.doi.org/10.1109/itec.2018.8450202.

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Wu, Qinghui, and Yanwei Pang. "Research on model on relative permeability and magnetic induction intensity of ferromagnetic material." In 2013 Chinese Automation Congress (CAC). IEEE, 2013. http://dx.doi.org/10.1109/cac.2013.6775858.

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Kowol, Pawel, Marcin Szczygiel, Grazia Lo Sciuto, and Giacomo Capizzi. "Modeling of Magnetorheological Fluids Relative Magnetic Permeability by using a Neural Network approach." In 2020 IEEE 20th Mediterranean Electrotechnical Conference ( MELECON). IEEE, 2020. http://dx.doi.org/10.1109/melecon48756.2020.9140517.

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Wang, Yi, Yixiao Luo, Kai Yang, and Baichuan Xu. "Saliency Ratio Improvement Based on Relative Permeability Calculated by Magnetic Circuit Model of SynRM." In 2023 26th International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2023. http://dx.doi.org/10.1109/icems59686.2023.10344535.

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Chang, Jiajing, Zhaojie Song, Bingyu Ji, Xiao Han, Yilei Song, and Wanfen Pu. "An Experimental Method for Measuring the Three-Phase Relative Permeability of Oil, Gas and Water By Nuclear Magnetic Resonance." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/215392-ms.

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Abstract The three-phase relative permeability of oil, gas, and water place a significant practical emphasis in the study and evolution of compact sandstone condensate gas traps. However, most investigations on itare relied on forecast patterns that make an effort to appraise it from the relative permeability of two phases. We have measured it of artificial dense sandstone core by online NMR tests. Firstly, the extracting of tight sandstone condensate gas reservoirs was mimicked using a steady-state flow toward, and crude oil, nitrogen and formation water were injected into tight sandstone sim

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White, C. D., G. Piazza, P. J. Stephanou, and A. P. Pisano. "Nano-Gap Piezoelectric Resonators for Mechanical RF Magnetic Field Modulation." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79623.

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Novel piezoelectric MEMS resonators with magnetic shielding have been developed to mechanically generate RF magnetic fields in the MHz frequency range from static magnetic fields. Thermally evaporated thin film nickel iron (NiFe) (10 to 20 nm) was deposited with a saturation flux density of 0.5 T, coercivity of 500 A/m and a high relative permeability of 3.7 × 103. Aluminum nitride (AlN) resonators developed for high frequency operation, resonate in a contour mode to increase and decrease a gap surrounding the resonator. This gap, 200 to 350 nm, is formed using a silicon sidewall deposition as

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Kashim, M. Z., A. Giwelli, M. B. Clennell, et al. "CO2-Brine Relative Permeability of HPHT High CO2 Complex Carbonate Rocks: Case Study from Sarawak Basin, Offshore East Malaysia." In ADIPEC. SPE, 2023. http://dx.doi.org/10.2118/216737-ms.

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Abstract A high carbon dioxide (CO2) carbonate gas reservoirs located in East Malaysia's waters (denoted as S Field) was expected to be developed for hydrocarbons production while storing the CO2 separated from the produced CO2-rich hydrocarbons. High challenge was expected to de-risk the subsurface uncertainties of S Field due to its strong heterogeneity, large amount of CO2 initially present in the reservoir and high reservoir temperature conditions. The permeability of targeted injection is low which makes it more complex in term of characteristics. Relative permeability is one of the most

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Звіти організацій з теми "Relative magnetic permeability"

Kleinberg, R. L., C. Flaum, and T. S. Collett. Magnetic resonance log of JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well: gas hydrate saturation, growth habit, and relative permeability. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2005. http://dx.doi.org/10.4095/220860.

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