Current Journal: International Journal Applied Technology Research最新文献_第5页

The Analysis of Development Natural gas-based Petrochemical Industry in Teluk Bintuni Regency 闽土省发展天然气石化工业分析

Current Journal: International Journal Applied Technology Research Pub Date : 2021-10-01 DOI: 10.35313/ijatr.v2i2.47

Dedy Setyo Oetomo, Rizky Fajar Ramdhani

引用次数: 3

Experimnetal Investigation on Outdoor and Indoor PM2.5 and PM10 in Supermarkets in Bandung During Covid-19 Pandemic 新冠肺炎大流行期间万隆市超市室内外PM2.5和PM10的实验调查

Current Journal: International Journal Applied Technology Research Pub Date : 2021-10-01 DOI: 10.35313/ijatr.v2i2.52

K. Sumeru, Toto Tohir, Neni Emrida Panjaitan, M. Sukri

引用次数: 0

Relationship Between Indoor Air Quality and Sick Building Syndrome in Post Office Building in Bandung 万隆市邮政大楼室内空气质量与病态建筑综合征的关系

Current Journal: International Journal Applied Technology Research Pub Date : 2021-10-01 DOI: 10.35313/ijatr.v2i2.53

Yudi Prana Hikmat, Ismail Wellid, K. Sumeru, Salma Dzakiyah Az-zahro, M. Sukri

{"title":"Relationship Between Indoor Air Quality and Sick Building Syndrome in Post Office Building in Bandung","authors":"Yudi Prana Hikmat, Ismail Wellid, K. Sumeru, Salma Dzakiyah Az-zahro, M. Sukri","doi":"10.35313/ijatr.v2i2.53","DOIUrl":"https://doi.org/10.35313/ijatr.v2i2.53","url":null,"abstract":"Sick building syndrome (SBS) is a collection of symptoms experienced by buildings occupants such as headaches, mucous, membrane irritation, respiratory problems and fatigue. A building is claimed to have SBS if more than 20% of building occupants experience symptoms. Poor indoor air quality contributes to SBS in the building. This study aims to investigate the correlation between indoor air quality and SBS symptoms in 1st and 2nd floors of the Post office building in Bandung. The study used quantitative methods with a cross sectional study design. Data collection was carried out using particle counter, thermometer, lux meter and anemometer to measure the indoor air quality, while the questionnaire utilized random sampling technique with 119 respondents. The results of the primary data were compared with the air quality standard from Minister of Health No. 1077, 2021. The results of the Statically Compare Means and Independent T-test showed that the p-values of the temperature on the 1st floor and 2nd floors were 0.437 and 0.000, respectively. Meanwhile the p-values of PM10 and PM2.5 on the 1st and 2nd floors were 0.005 and 0.290 and 0.004 and 0.364, respectively, and the p-values of the lighting on the 1st and 2nd floors were 0.002 and 0.015. It indicates that there is a significant relationship between concentrations of PM10 and PM2.5 on the 1st floor with SBS symptoms and the temperature and humidity on the 2nd with SBS symptoms. Since 29 peoples (24% of the building’s occupants) experienced SBS, the building was considered to have a significant potential to cause SBS to its occupant.","PeriodicalId":382187,"journal":{"name":"Current Journal: International Journal Applied Technology Research","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133533542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Pyrolysis Reactor Design and The Effect of Liquid Smoke from Coconut Shell on Microbial Contamination of Tofu 热解反应器设计及椰壳液烟对豆腐微生物污染的影响

Current Journal: International Journal Applied Technology Research Pub Date : 2020-10-01 DOI: 10.35313/IJATR.V1I2.28

A. R. Permanasari

引用次数: 2

Wireless Noise Characteristics on Gearboxes Due to Speed Variations 变速齿轮箱的无线噪声特性

Current Journal: International Journal Applied Technology Research Pub Date : 2020-04-17 DOI: 10.35313/IJATR.V1I1.26

Raharjo Parno, Y. Sofyan, Tri Arief

{"title":"Wireless Noise Characteristics on Gearboxes Due to Speed Variations","authors":"Raharjo Parno, Y. Sofyan, Tri Arief","doi":"10.35313/IJATR.V1I1.26","DOIUrl":"https://doi.org/10.35313/IJATR.V1I1.26","url":null,"abstract":"Noise inspection is a predictive maintenance technique that is used to determine machine condition. The noise inspection can be done offline and online. Online noise inspection, which is far away from the object, is performed in the control center room. This monitoring system requires a complicated installation and long cables. The complexity of installation can be overcome by implementing a wireless noise inspection system. Wireless noise monitoring system for machinery condition monitoring still lacks information. Therefore, it is necessary to develop a wireless noise monitoring system. The result of wireless noise testing data on the machine is justified through the analysis of noise testing data of wired system. The research objective was to create a wireless noise measurement that is applied on a gearbox that is equipped with a data acquisition system that operates at a constant load and 5 variations of speed. Comparative analysis is used to justify the noise amplitude, time domain, and frequency domain of wireless and cabled measurements. The final test result indicates that the noise and wireless spectrum signals match the noise spectrum and signals using a cable. The highest amplitude lies at 12-13 of a fundamental frequency at a low frequency and at 30 of a fundamental frequency at a high frequency.","PeriodicalId":382187,"journal":{"name":"Current Journal: International Journal Applied Technology Research","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115916733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0