Analyzing on-line partial discharge (PD) data using commercially available spreadsheet application software like Microsoft Excel is possible but very difficult to do. The problem is because the PD data are quite long and depend on the sampling rate used during testing. Increasing the sampling rate will increase data samples in one cycle of 50 Hz waveform, and longer time is needed to analyze the data. A further problem is associated with compiling the PD data; Excel uses a large memory to run, plot and calculate the PD data for analysis purpose, and sometimes this leads to computer memory crash. Due to this problem, an alternative on-line PD analyzer (on-LPDA) needs to be developed. This paper reports on the performance of the software that was developed using LabViewTM 8.5. The result shows that the software can extract PD parameters like PD numbers, PD magnitude, and plotting PD pattern without large time and memory consumption, compared with Excel, and experiences no memory crash up to 125 mega sampling (MS) rate.
Waste management in Magetan Regency still uses a conventional system. Meanwhile, the amount of generated waste transported to the landfill will continue to increase along with the population growth and cause the landfill land to decrease. The purpose of this study was to determine the potential ecobricks as a solution in reducing the generation of plastic waste in Kepolorejo Urban Village, Magetan Sub district, Magetan Regency. Sampling was carried out in accordance with SNI 19-3694-1994 at each hamlet in Kepolorejo Urban Village. Based on the results of sampling conducted on 33 families or 98 people spread across 12 hamlet in Kepolorejo Urban Village, the total waste generation generated in Kepolorejo Urban Village is 253.4 kg. the total plastic waste generation in Kepolorejo Urban Village is 18.8 kg consisting of plastic waste that can be used as ecobrick raw material, which is 11.9 kg/day and plastic waste that cannot be used as ecobrick raw material, which 6.9 kg. the value of the potential for ecobrick in reducing the generation waste in Kepolorejo is 4.6%. the number of ecobrick that can be produced in 1 year is 99.631.
The COVID-19 outbreak began in December 2019. In preventing its transmission, society across the world agrees to use a mask for their safety. However, today, people, primarily some merchants who sell their stuff around the tourism places, still do not obey the regulation to wear a mask. Hence, this study aims to know the relationship between merchant knowledge and attitude toward the obedience of using a mask in preventing the COVID-19 transmission at the religious tourism of Sunan Bonang Tuban. The research design used in this study is the correlation analysis that uses a cross-sectional approach. Moreover, the sampling technique used in this study is Simple Random Sampling with 105 populations and 83 samples of merchants. The data technique used in this study is a questionnaire. Then, the researcher analyzes the questionnaire with a percentage and does a crosstab by using the Spearman Rank Correlation test. The finding of this study presents that most of the merchants at religious tourism of Sunan Bonang Tuban have good knowledge in preventing COVID-19 transmission. It is about Forty-nine people (59,0%). Then, fifty people (60,2%) have a positive attitude. Moreover, the finding presents that almost half of the merchants, thirty-five people (42,2%), obey the regulation to wear the mask. The result of Spearman Rank Correlation test is α =0.00 < 0.05. This result shows the relationship between knowledge and obedience in using the mask. The result of the test is α =0.00 < 0.001 shows there is a relationship between the attitude and the obedience in using the mask of merchants to prevent COVID-19 at the religious tourism of Sunan Bonang Tuban. The knowledge and attitude of merchants influence their obedience in using the mask. It means that the more increased merchants' knowledge and attitude, the more increased merchant obedience. In increasing and encouraging other merchants' knowledge and attitude, the government must have a good strategy. One of the appropriate strategies is doing counseling of using a mask to prevent COVID-19 transmission.
Lightning air terminals are a very significant part of lightning protection system (LPS) for buildings, structures and facilities. With reference to the facilities requiring lightning protection the position, the apparent height, and the angle of protection of lightning air terminals determines the collection volume (CV) of the protected area. The CV of direct strike lightning air terminals can change due to facilities which are affected by natural disasters such as seismic tremor and flood. If such natural disasters do happen, there are possibilities that the facilities will not be fully protected from direct lightning strikes due to building and structure misalignment the aftermath of seismic tremor and flood related earth movement. So for the safety of equipment and personnel, lightning protection system efficacy assurance is necessary. Therefore, there should be a technique and device to monitor the variation of collection volume afforded by every lightning air terminal on buildings and structures after the occurrence of a natural disaster. This paper presents a new technique as well as a new device to monitor the collection volume variation. A part of the device was obtained from a recycled moveable television antenna. This approach is not only practical, portable and cost effective but also incorporating the idea of environmental protection and recycling of used plastic materials.
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