12 research outputs found

    Electromagnetic Analysis for Vehicle Antenna Development Using Method of Auxiliary Sources

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    In paper [l] the electromagnetic analysis of large semi-open structures like vehicles was presented formulated as scattering problem, illuminated by a wide range of incident EM fields. The effect of resonances within the semi-open structure on the RCS, near fields and pattem of reradiated fields had been shown. In this paper the interaction of the entire semi-open structure on the performance of an antenna is considered together with the investigation of near field distributions inside the cavity. The Method of Auxiliary Sources (MAS) [2] is utilized. For a simple geometry the results are compared to measurements

    MAS-MoM Hybrid Method with Wire\u27s Image using in Excitation Problems

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    An important class of problems is the interaction of an antenna with the cavity of a semi-open metallic structure. In a working environment, an antenna may change its performance due to interactions with its surroundings. This is especially true in automotive applications. Therefore, it is important to consider the interaction of an antenna with possible resonating parts, and to solve these complex electrodynamics problems together. The development of methods for modeling and studying electromagnetic compatibility (EMC) problems has practical value. The method of auxiliary sources (MAS) with the method of moments (MoM) is applied to solve the excitation problem where a wire, with voltage source excitation, is connected to an open metallic surface. For verification of the proposed algorithm, an experimental structure was built and measured. Computer modeling results and the experimental results are in good agreement. Some aspects and principles are described, which provide hybridization of MAS and MoM. Image of objects is effectively applied for the solution of the particular problem

    The Method of Auxiliary Sources as an Efficient Numerical Technique for Large 3D Semi Open Structures

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    The method of auxiliary sources (MAS) has been demonstrated as suitable for solution of diffraction and inverse problems in complex 2D large objects. Based on MAS numerical study of 3D RCS, EMC/EMI and SAR problems, related to the EM field resonance enhancement inside vehicles and the interaction of the cellular telephone radiation with the user\u27\u27s head are given in other work. The objective of this paper is to present details of MAS application to the wide 3D electrodynamic problems. The area of its efficient application, some features and advantages to achieving efficient solutions, are discussed. The extension of the MAS for semi-open structures with partitions is also presented

    Development of a new efficient numerical approach for buried object recognition

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    The Individual Rehabilitation Project as the core of person-centered rehabilitation: the Physical and Rehabilitation Medicine Section and Board of the European Union of Medical Specialists Framework for Rehabilitation in Europe

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    To facilitate the interaction between the health professional and the patient, a framework to guide the rehabilitation process is needed. This framework would encompass three interwoven aspects: the rehabilitation management plan, Individual Rehabilitation Project (IRP), and rehabilitation cycle(s). All three framework aspects focus on the patient and on the aim of rehabilitation, i.e. to optimize a person's functioning across the continuum of care. An IRP is a multi-element, person-centered rehabilitation management scheme, in which rehabilitation is generally provided by a multiprofessional team under the leadership of a physical and rehabilitation medicine (PRM) physician, working in an interdisciplinary manner and together with the patient (or proxy). A reference system for operationalizing functioning and standardizing the process is the International Classification of Functioning, Disability and Health (ICF) - for assessing functioning needs, defining rehabilitation goals and outcomes. The objective of this paper is to present the IRP as a framework for rehabilitation in Europe (EUR-IRP). The specific aims are: 1) to introduce the IRP; and 2) to describe the framework components, elements and variables of the IRP. Demonstration projects (case studies) using the EUR-IRP will be conducted. The present paper presents the efforts to date for developing the EUR-IRP, a key part of the action plan of the PRM Section and Board of the European Union of Medical Specialists to implement the ICF systemwide across the care continuum. This paper serves as another step to bring together practice, science and governance in calling for contribution from rehabilitation clinicians and researchers and professional societies in PRM and beyond. © 2022 Edizioni Minerva Medica. All rights reserved
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