Searched for: subject%3A%22Electromagnetic%22
(1 - 20 of 204)

Pages

document
Hao, Bochen (author)
In the semiconductor industry, the demand for a continuously higher throughput puts tough requirements on the force capacity and accuracy of actuators. Reluctance actuators, as a promising alternative to the present state-of-the-art Lorentz actuators, are capable of achieving much higher force densities. On the other hand, reluctance actuators...
master thesis 2023
document
Wang, Xiangwen (author)
Increasing wireless communication requirements of data rates, capacity and coverage, and evolution and maturation of wireless equipment prompt wireless communication research insight concentrating on millimeter wave (mm-wave) frequency. However, high reflection coefficients and high path loss cause large shadow areas (e.g. behind the buildings)...
master thesis 2023
document
Simader, Thomas (author)
Ground penetrating radar (GPR) data has proven to be a powerful tool for non-invasively estimating the electrical properties of the shallow subsurface. Petrophysical relationships allow them to be converted into hydrological parameters such as soil water content (SWC) and porosity. In the presence of thin layers, complex wave phenomena can occur...
master thesis 2023
document
Oudshoorn, Christiaan (author)
The data assimilation process for geothermal reservoirs often relies on well data which primarily offers insights into the immediate vicinity of the borehole. However, integrating geophysical methods can provide valuable information beyond well proximity, possibly enhancing reservoir predictions. Electromagnetic methods can be sensitive to the...
master thesis 2023
document
CHEN, YANWEN (author)
A rigorous model based on classic electromagnetism to characterize the thermal radiation of real ohmic media is presented in this thesis. This model explains the available energy due to thermal agitation inside ohmic material based on Johnson's theory of thermal noise in electric circuits. The field is expanded in a finite number of modes ...
master thesis 2023
document
Swank, Tim (author)
To increase the accuracy of high-precision motion systems, the heat dissipation in electromagnetic actuators must be reduced to limit thermal expansion. Variable Reluctance Actuators have a high-frequency bandwidth but suffer from heating when providing high forces for sustained periods of time. Tunable Magnet Actuators can provide a large force...
master thesis 2023
document
Pacilly, Feike (author)
In this thesis, the acoustic noise emitted by a small electric outrunner motor, such as the ones commonly used in unmanned areal vehicles, is analyzed using a multiphysics simulation based on the finite element method. The simulation covers the electromagnetic, mechanical and acoustic domain. The electromagnetic simulation is performed in the 2D...
master thesis 2023
document
Androulakis, Ioannis (author), Ferrero, Riccardo (author), van Oossanen, R. (author), Manzin, Alessandra (author), Denkova, A.G. (author), Djanashvili, K. (author), Nadar, R.A. (author), van Rhoon, G.C. (author)
While hyperthermia has been shown to induce a variety of cytotoxic and sensitizing effects on cancer tissues, the thermal dose–effect relationship is still not well quantified, and it is still unclear how it can be optimally combined with other treatment modalities. Additionally, it is speculated that different methods of applying...
journal article 2023
document
Li, Y. (author), Slob, E.C. (author), Werthmüller, D. (author), Wang, Lipeng (author), Lu, Hailong (author)
Natural gas hydrates have been an unconventional source of energy since the beginning of this century. Gas-hydrate-filled reservoirs show higher resistivity values compared with water-filled sediments. Their presence can be detected using marine controlled-source electromagnetic methods. We classify acquisition configurations into stationary and...
journal article 2023
document
Brink, Wyger M. (author), Remis, R.F. (author), Webb, A. (author)
Purpose: High permittivity dielectric pads are known to be effective for tailoring the RF field and improving image quality in high field MRI. Despite a number of studies reporting benign specific absorption rate (SAR) effects, their “universal” safety remains an open concern. In this work, we evaluate the impact of the insulation material in...
journal article 2023
document
Liao, Z. (author), Zoumhani, O. (author), Boutry, C.M. (author)
The objective of this review is to investigate the potential of functionalized magnetic polymer composites for use in electromagnetic micro-electro-mechanical systems (MEMS) for biomedical applications. The properties that make magnetic polymer composites particularly interesting for application in the biomedical field are their biocompatibility...
review 2023
document
Oliveira, Filipa M. (author), Azadmanjiri, Jalal (author), Wang, Xuehang (author), Yu, Minghao (author), Sofer, Zdeněk (author)
The development of new materials for electromagnetic interference (EMI) shielding is an important area of research, as it allows for the creation of more effective and high-efficient shielding solutions. In this sense, MXenes, a class of 2D transition metal carbides and nitrides have exhibited promising performances as EMI shielding materials...
review 2023
document
Harbi, Ibrahim (author), Rodriguez, Jose (author), Poorfakhraei, Amirreza (author), Vahedi, H (author), Guse, Miguel (author), Trabelsi, Mohamed (author), Abdelrahem, Mohamed (author), Ahmed, Mostafa (author), Lin, Chang Hua (author)
Multilevel converters (MLCs) are widely recognized for their exceptional benefits and have emerged as the preferred choice for medium- and high-power/voltage applications. Their usage has also been extended to low-power applications to overcome issues associated with high switching frequencies and electromagnetic interference (EMI) commonly...
journal article 2023
document
Chen, Y. (author), Castro Heredia, L.C. (author), Smit, J.J. (author), Ghaffarian Niasar, M. (author), Ross, Robert (author)
Partial discharge (PD) detection is a standardized technique to qualify the insulation condition in power equipment. The main purpose of the article is to evaluate the performance of an extra high-sensitivity adapted giant magneto-resistive (xMR) sensor for non-contacting PD detection. First, compensation and signal conditioning circuits of...
journal article 2023
document
Sattari, R. (author), van Zeijl, H.W. (author), Zhang, Kouchi (author)
This study presents the design and fabrication of an in-package relative humidity sensor for epoxy molding compound (EMC) packages. The sensor comprises shielded interdigital electrodes (SIDE) for in-situ monitoring of humidity absorption/desorption in the package encapsulation layer. A novel approach is employed in the device fabrication to...
conference paper 2023
document
Petroulakis, Nikolaos (author), Mattsson, Mats-Olof (author), Chatziadam, Panos (author), Simko, Myrtill (author), Gavrielides, Andreas (author), Yiorkas, Andrianos (author), Zeni, Olga (author), Scarfi, MR (author), Spirito, M. (author)
The evolution of emerging technologies that use Radio Frequency Electromagnetic Field (RF-EMF ) has increased the interest of the scientific community and society regarding the possible adverse effects on human health and the environment. This article provides NextGEM’s vision to<br/>assure safety for EU citizens when employing existing and...
journal article 2023
document
Eslamlou, Armin Dadras (author), Ghaderiaram, A. (author), Schlangen, E. (author), Fotouhi, M. (author)
The growing demand towards life cycle sustainability has created a tremendous interest in non-destructive evaluation (NDE) to minimize manufacturing defects and waste, and to improve maintenance and extend service life. Applications of Magnetic Sensors (MSs) in NDE of civil Construction Materials to detect damage and deficiencies have become...
review 2023
document
Çelik, F.T. (author), Yarovoy, Alexander (author), Aslan, Y. (author)
A novel electromagnetic-thermal codesign and optimization methodology is proposed for thermal management in active finned-heatsink antenna arrays. An innovative complementary split-ring resonator embedded dual-functional (i.e., heat-dissipating electromagnetic-isolation) wall is introduced. For concept demonstration, a two-element unit cell...
journal article 2023
document
Ha, Xuan Thao (author), Wu, D. (author), Ourak, Mouloud (author), Borghesan, Gianni (author), Menciassi, Arianna (author), Poorten, Emmanuel Vander (author)
Optical fiber-based shape sensing is gaining popularity in cardiac catheterization lately. Typically, these procedures are taking place under the guidance of fluoroscopy. However, fluoroscopy has several disadvantages. Thanks to fiber optic shape sensing and Electromagnetic Tracking (EMT), the 3D catheter shape can now be tracked in real-time...
journal article 2023
document
Riccardi, A. (author), Furtado, Guilherme P. (author), Sikorski, Jakub (author), Vendittelli, Marilena (author), Misra, Sarthak (author)
The actuation of miniaturized robots through external magnetic fields has great potential for medical applications. The controllability properties of the miniaturized robots are affected by magnetic field generation modality. In this work, the magnetic field of a mobile electromagnet, notably capable to generate a desired magnetic field in...
journal article 2023
Searched for: subject%3A%22Electromagnetic%22
(1 - 20 of 204)

Pages