Microwave non-destructive testing (MNDT) using free-space microwave measurement (FSMM) system involve measurement of reflection (Sll) and transmission (S1,) coefficients in free-space. The measurement system consists of a pair of spot-focusing horn lens antenna, mode transitions, coaxial cables and a vector network analyzer (VNA). The inaccuracies in free-space measurements are due to two main sources of errors. 1) Diffraction effects at the edges of the material specimen. 2) Multiple reflection between horn lens antennas and mode transitions via the surface of the sample. The spot-focusing antennas are used for minimizing diffraction effects and free-space LRL (line, reflect, line) calibration method implemented on VNA eliminates errors due to multiple reflections. The time domain gating or smoothing feature of VNA is used to reduce post calibration errors in reflection and transmission measurements. In this paper, complex reflection coefficients were measured using FSMM system for silicon wafers backed by a metal plate. It was observed that the dielectric constants of the silicon wafers are higher than the values reported for intrinsic silicon wafers which maybe due to the presence of highly conductive epitaxial layer doped on the wafers. Results are reported in the frequency range of 8.0 -12.5 GHz.
This study aims to analyze factors of the readiness of the Regional Government, especially the Bukittinggi City Government in implementing the Minister of Home Affairs Regulation Number 47 of 2021 and the E-BMD Application. The population in this study were all OPDs in Bukittinggi City, which amounted to 29 SKPD. The sampling method was carried out by using a purposive sampling technique to determine the sample. Sampling is done by taking samples from the population based on certain criteria. A total of 100 respondents participated in the study consisting of Regional Property Management Officers, OPD Property Administration Officers, OPD Property Managers and Assistant OPD Property Managers. The data collection technique is carried out using a questionnaire sent via Google Form. The results of the analysis using multiple regression show the Quality of Human Resources, Utilization of Technology and Information, Leadership Style and Organizational Culture that affect Readiness in the Implementation of Permendagri Number 47 of 2021 and E-Applications BMD. The results of the research have contributed to the government in preparing the implementation of regulatory changes.
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