Showing 1,101 - 1,120 results of 1,540 for search '"electromagnetism"', query time: 0.04s Refine Results
  1. 1101

    Frequent Home Monitoring of ICD Is Effective to Prevent Inappropriate Defibrillator Shock Delivery by Paolo Bifulco, Luigi Argenziano, Maria Romano, Mario Cesarelli, Mario Sansone, Stefano Casella, Stefano Nardi

    Published 2014-01-01
    “…Inappropriate shock generally depends on atrial fibrillation, supraventricular tachycardia, and abnormal sensing (such as those caused by electromagnetic interferences). As a practical example, an unusual case of an ICD patient who risked an inappropriate shock while taking a shower is reported. …”
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  2. 1102

    Research on variable bus voltage control algorithm of axial flux stator coreless permanent magnet motor by Xiaoguang WANG, Yifan ZHOU, Mengkai CHEN, Yahong CHEN

    Published 2024-12-01
    “…The minimum value of the bus voltage was determined according to the actual speed and electromagnetic torque, and the maximum value of the bus voltage was set by combining the maximum current ripple allowable value and the back electromotive force. …”
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  3. 1103

    Nondestructive Measurement of Momentum Transfer Collision Frequency for Low Temperature Combustion Plasma by Douglas Letsholathebe, Kgakgamatso M. Mphale, Samuel Chimidza

    Published 2014-01-01
    “…Accurately measured momentum transfer collision frequency and electron density for fire plasma enable correct simulation of electromagnetic wave propagation in the medium. The simulation is essential for designing high-performance systems suitable for the environment. …”
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  4. 1104

    Human Exposure to Wireless Power Transmitter over Real Ground by Petra Rašić, Zoran Blažević, Dragan Poljak, Maja Škiljo

    Published 2024-12-01
    “…The paper undertakes a comparative examination between a novel analytical methodology and a conventional numerical technique to analyze human exposure to electromagnetic fields emitted by a vertically positioned, electrically short antenna over a real homogeneous ground. …”
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  5. 1105

    A Contrast Source Inversion Algorithm Formulated Using the Log-Phase Formulation by Tonny Rubæk, Paul M. Meaney, Keith D. Paulsen

    Published 2011-01-01
    “…In the CSI algorithm, the nonlinear integral equation, which must be solved to extract the constitutive electromagnetic parameters of the object under test from the microwave measurements, is represented by two linear equations, known as the data and the object equations. …”
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  6. 1106

    Evaluation of SAR Distribution in Six-Layer Human Head Model by Asma Lak, Homayoon Oraizi

    Published 2013-01-01
    “…The interaction between human head model and electromagnetic field sources is studied. The head models are composed of one and six layers. …”
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  7. 1107

    A Low Profile Ultrawide Band Monopole Antenna for Wearable Applications by Srinivas Doddipalli, Ashwin Kothari, Paritosh Peshwe

    Published 2017-01-01
    “…Specific absorption rate (SAR) of the proposed antenna on dispersive phantom model is also measured to observe the exposure of electromagnetic energy on human tissues. The simulated and measured results of the proposed antenna exhibit wide bandwidth and radiation characteristics in both free space and human proximity.…”
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  8. 1108

    Multimode Coordination Control of a Hybrid Active Suspension by Fa-Rong Kou, Dong-Dong Wei, Lei Tian

    Published 2018-01-01
    “…Secondly, the active mode with damping switching control of the hybrid suspension and the semiactive mode with feedback adjustment of the electromagnetic damping force of the hybrid suspension are analyzed. …”
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  9. 1109

    Radar Jamming Recognition: Models, Methods, and Prospects by Zan Wang, Zhengwei Guo, Gaofeng Shu, Ning Li

    Published 2025-01-01
    “…In modern warfare with complex and changeable electromagnetic environments, radar jamming is getting more complex and realistic, which poses a serious threat to radar; jamming recognition has become a hot topic in the field of electronic countermeasures. …”
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  10. 1110

    Decoupling Control Strategy of IPT System Based on Optimal Efficiency Load Tracking by Wenmei Hao, Liwei Zhang, Sanmu Xiu, Fengyu Leng

    Published 2019-01-01
    “…However, in the application of dynamic wireless charging in urban rail transit, the primary and secondary side coils are in the process of relative movement, so it is relatively difficult to establish reliable real-time communication, and it is easy to be interfered by electromagnetic transmission process, resulting in large errors. …”
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  11. 1111

    Investigation of ferroresonance phenomena in isolated 6 kV power network by Jasika Ranko, Maksić Katarina, Mrvić Jovan

    Published 2023-01-01
    “…The paper analyzes the possibility of ferroresonance occurrence in a real 6 kV power network, with an isolated neutral point, using the electromagnetic transients program ATP/EMTP. A detailed network model is developed, taking into account the nonlinearity of voltage and power transformers, which is utilized to analyze various configurations, switching operations, and faults in the network that could trigger ferroresonance. …”
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  12. 1112

    Prospects for Gamma-Ray Emission from Magnetar Regions in CTAO Observations by M. F. Sousa, R. Costa Jr., Jaziel G. Coelho, R. C. Dos Anjos

    Published 2025-01-01
    “…This study examines three magnetar regions—CXOU J171405.7–31031, Swift J1834−0846, and SGR 1806−20—known for emitting detectable electromagnetic signals. We assess the detectability of these regions using the upcoming Cherenkov Telescope Array Observatory (CTAO) by conducting an ON/OFF spectral analysis and compare the expected results with existing observations. …”
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  13. 1113

    Multi scale power spectral density subband gradient-based spectrum sensing algorithm and performance analysis by Yang ZHANG, Hua PENG, Ke-xian GONG

    Published 2016-02-01
    “…In response to the challenge of the complex environment such as non-cooperative communication and wide-band electromagnetic spectrum regulation, where existing missing priori information, serious channel distortion and un-even color noise in frequency domain, a novel spectrum sensing algorithm based on multi-scale power spectral density subband gradient(MPSG)was proposed. …”
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  14. 1114

    Electrically tunable THz graphene metasurface wave retarders by Park Hyunwoo, Jeong Sodam, Seo Changwon, Park Hyeongi, Oh Donghak, Shim Jae-Eon, Lee Jaeyeong, Ha Taewoo, Kim Hyeon-Don, Baek Soojeong, Min Bumki, Kim Teun-Teun

    Published 2023-03-01
    “…Anisotropic materials with chirality or birefringence can be used to manipulate the polarization states of electromagnetic waves. However, the comparatively low anisotropy of natural materials hinders the miniaturization of optical components and devices at terahertz frequencies. …”
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  15. 1115

    Scattering and Doppler Spectral Analysis for a Fast-Moving Target above Time-Varying Lossy Dielectric Sea Surface by Ke Li, Lixin Guo, Juan Li

    Published 2016-01-01
    “…A numerical electromagnetic method based on the physical optics with physical optics method (PO-PO) is employed to calculate backscattered returns from a missile-like target above sea surface. …”
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  16. 1116

    Characterization of aerosol jet printed features at microwave frequencies by Teresa Cheng, Kelvin J. Nicholson

    Published 2025-12-01
    “…This work has demonstrated that AJP can be utilized to fabricate bulk microwave components with acceptable electromagnetic performance and sets a solid foundation for the manufacturing of conformal antennas in the future.…”
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  17. 1117

    A 28-GHz Vivaldi Array Antenna With Power Divider Structure for Achieving Wide Band and Gain Enhancement by Ming-An Chung, Dainius Udris, Chia-Wei Lin, Chih-Wei Yang

    Published 2024-01-01
    “…The antenna is simulated with an electromagnetic power density (PD) of 28.5 W/m2 at 1 cm2 and 7.27 W/m2 at 4 cm2, which are in compliance with the FCC regulations. …”
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  18. 1118

    Passive biometric electronic lock via UHF RFID by Xiang ZOU, Jinsong HAN, Yuhang QU, Jian XIAO, Xian XU

    Published 2021-04-01
    “…A biometric lock design method was proposed based on the internal features of human body, namely PBLock.It used the backscattered RF signals to collect the impedance characteristics of human fingertips through the contact between human fingers and tags.The advantage of such authentication method is that the human impedance was not easy to be stolen, and it was fully integrated with the hardware characteristics of the device (RFID tags), which greatly increased the difficulty for the attacker to copy and clone.To ensure the availability and efficiency of the system, an optimization authentication mechanism was proposed by cutting tag antenna, which effectively improved the impedance sensitivity.Moreover, the feasibility of passive drive was discussed by using the electromagnetic energy advantage of RFID system.Through a large number of experimental evaluations, the authentication accuracy of PBLock can reach 96%, and the average time cost of a single authentication is 1.4 seconds.Some attack models were presented based on practical environment.The results show that PBLock can effectively prevent counterfeiting attack, impersonation attack and replay attack, which provides an opportunity for the secure application of new biometric electronic locks.…”
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  19. 1119

    Composite Scattering from a PEC Object above Two-Layered Rough Soil Surfaces Based on an Efficient Bi-Iterative Model by Ke Li, Lixin Guo, Juan Li

    Published 2022-01-01
    “…In the study, an efficient bi-iterative physical optics (PO) electromagnetic model is used to analyze the composite scattering from a PEC object above two-layered rough soil surfaces for the first time. …”
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  20. 1120

    Comparison of Matrix Pencil Extracted Features in Time Domain and in Frequency Domain for Radar Target Classification by Mahmoud Khodjet-Kesba, Khalil El Khamlichi Drissi, Sukhan Lee, Kamal Kerroum, Claire Faure, Christophe Pasquier

    Published 2014-01-01
    “…To the best of our knowledge, this comparison and the reconstruction of the complex electromagnetic field by MPMFD have not been done before. …”
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