Banca de QUALIFICAÇÃO: MARIA ELIZABETH TEIXEIRA SANTANA PRAXEDES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : MARIA ELIZABETH TEIXEIRA SANTANA PRAXEDES
DATE: 29/09/2023
TIME: 09:00
LOCAL: meet.google.com/qhh-iiih-tug
TITLE:

DETERMINATION OF DIELECTRIC PROPERTIES OF PLASTER BLOCKS FOR SEALING MASONRY USING FREQUENCY SCANNING METHODS

KEY WORDS:

Electrical characterization. NRW. Ray Tracing. Complex Relative Electric Permittivity. Attenuation Constant. Conductivity.

PAGES: 20
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Construção Civil
SPECIALTY: Materiais e Componentes de Construção
SUMMARY:

With the increasing use of traditional and new models of wireless communication systems, the study and determination of the electrical characteristics of materials used in civil construction is an important topic to establish an understanding of how the radio frequency signal behaves inside built environments. This study presents an extensive process of characterization of electrical parameters of plaster blocks used in the construction of walls. Analyses are made in the frequency range from 0.7 to 5.2 GHz, which has been used for several wireless communication standards. To carry out the electrical characterization of dielectric materials, a non-invasive methodology is proposed based on an innovative combination of the Nicolson–Ross–Weir Method (NRW) and the Ray Tracing Method. Through the proposed methodology and an extensive campaign of measurements using frequency scanning equipment, calculated and experimental data of Shielding Effectiveness (SE), complex relative electrical permittivity, loss tangent, attenuation coefficient and conductivity were obtained for a wide range of frequency, Manuscript (For revision, remove the original version and upload clean version of revised paper) Click here to view linked References considering different samples of plaster blocks. The obtained results are compared to those available in the related literature, confirming the accuracy of the proposed analysis.

COMMITTEE MEMBERS:
Presidente - ***.403.354-** - KLEBER CAVALCANTI CABRAL - UFERSA
Externa ao Programa - 1804383 - CRISTHIANNE DE FATIMA LINHARES DE VASCONCELOS - UFRNExterna à Instituição - ERICA NATASCHE DE MEDEIROS GURGEL PINTO - UFERSA
Externo à Instituição - WENDELL ROSSINE MEDEIROS DE SOUZA - UFERSA