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roni kartika pramuyanti
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Aplikasi Logika Fuzzy Pada Pengelompokan Nilai SWR Ideal Antena dengan Bahan Dasar Allumunium roni kartika pramuyanti
Retii 2020: Prosiding Seminar Nasional ReTII ke-15
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The SWR is a comparison of the resistance value, here the SWR value is classified. Assisted by the FIS editor of the Matlab program, several classification results will be obtained. With the Fuzzification process, 3 types of classifications will be obtained, namely less than ideal, ideal and not ideal. There are 2 ways to calculate the SWR which all produce ideal results that are almost the same as the results of the observations. The use of the FIS editor in the classification here is in the form of traces, each of which has a range of values, although each input / input only has one value, so the FIS editor uses the triangle membership function. It can be concluded that the SWR value that can make an instrument operate properly is not necessarily ideal because instruments such as antennas will be heavily influenced by external environmental factors.
Efek Perubahan Nilai SWR Pada Siaran Televisi Mobil roni kartika pramuyanti
Retii 2021: Prosiding Seminar Nasional ReTII ke-16
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

There is some signal which is take effect to the antena among others SWR the Standing Wave Ratio which is a comparison or ratio of the existing resistance in a circuit, which is a comparison between the external resistance and the internal resistance. Calculation or the magnitude of this comparison or ratio will have an effect on the existing circuit.The magnitude of the SWR value has been classified in the name of ideal, less ideal or not ideal. The influence of the SWR value that has been summarized in a classification will certainly have a felt effect for the user of the tool or instrument that has the SWR value. With the classification that has been summarized previously coupled with existing calculations, the influence of the magnitude of the SWR value will be explained.Before getting a bad influence or effect from the SWR value, the user will be able to anticipate or prevent the bad thing from happening. In addition, there is a possibility that users can also eliminate or minimize the occurrence of such disturbances or unfavorable influences. By knowing all the disturbances, the user will be able to prevent it so that everything that happens is as expected. From what has happened, the data will conclude about the effect of the SWR value on car television broadcasts which are directly related to the antenna. Keywords: SWR, Standing Wave Ratio, Ideal, Classification, Car Television
Kondisi Sinyal R Gelombang QRS Jantung Dalam Rangka Mitigasi Pandemi roni kartika pramuyanti
Retii 2022: Prosiding Seminar Nasional ReTII ke-17
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The R signal as part of the heart's QRS wave has physical and clinical significance to a person's condition. The R signal is the highest signal or the amplitude for the cardiac QRS waves. As the highest wave of the R signal, of course, it has several specifications that must be met, including the lowest or highest signal height, the width or fatness of the R signal itself must also have a certain value and the presence of interference or other signals that have the R signal. After knowing some of these specifications, it will be able to classify the group from the R signal or QRS wave of the heart or even to health problems or disorders that occur in the owner of the heart. Apart from heart problems or health problems in humans, it can also be seen the common causes of the heart QRS wave R signal disturbance. Keywords: R signal, Cardiac QRS wave, Amplitude, Specification, Classification
Analisis Kebisingan Lalu Lintas dan Generator Set Kampus Universitas Semarang Fahrudin Ahmad; Roni Kartika Pramuyanti; Kukuh Wisnuaji Widiatmoko
Jurnal Teknik Sipil Vol. 17 No. 2 (2024): Desember 2024
Publisher : Faculty Of Engineering University 17 August 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/jts.v17i2.2363

Abstract

This study analyzes noise levels caused by traffic activities and generator sets (genset) in the Semarang University environment. Measurements were conducted using descriptive analytical methods by comparing measurement results against noise quality standards according to KepmenLH No.48 of 1996. Data collection was carried out in November 2023 at three location points (in front of Building V, Sports Center, and USM gate) during morning (08.00-08.30), afternoon (12.30-13.00), and evening (17.30-18.00) on weekdays and weekends. Measurement results showed traffic noise levels on weekdays reached 88.3 dB in front of the Sports Center, 85.3 dB at Building V, and 82.1 dB at the USM gate. On weekends, the highest noise level reached 82 dB. Generator noise measurements in stationary conditions reached 108.4 dB and increased to 112.4 dB during loading. The highest vehicle volume occurred during weekday evenings, reaching 3,176 vehicles/hour. Research results indicate that noise levels in the campus environment are above the permitted threshold of 55 dB for educational areas. The study recommends the construction of noise barriers and evaluation of generator placement to reduce noise impact on campus activities.
Co-Authors Fahrudin Ahmad Kukuh Wisnuaji Widiatmoko