Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap最新文献

Investigation of Exhaust Emissions Combustion Characteristics in Single Spark Ignition-Engine Matic with Butanol-Gasoline Mixture 丁醇-汽油混合气单火花点火发动机废气排放燃烧特性研究

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1903

G. Setyono, D. Khusna, Navik Kholili, Lingga Putra Sanjaya, Fajar Galang Argil Putra

引用次数: 1

Optimalisasi Labview Sebagai Kendali dan Monitoring Arus Tegangan pada Modul Solar Cell Menggunakan Jaringan Lokal 利用当地网络控制和监测太阳能电池模块的电压电流

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1910

Sugeng Dwi Riyanto, Purwiyanto Purwiyanto, Riyani Prima Dewi

{"title":"Optimalisasi Labview Sebagai Kendali dan Monitoring Arus Tegangan pada Modul Solar Cell Menggunakan Jaringan Lokal","authors":"Sugeng Dwi Riyanto, Purwiyanto Purwiyanto, Riyani Prima Dewi","doi":"10.35970/infotekmesin.v14i2.1910","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1910","url":null,"abstract":"Renewable energy sources in Indonesia have been widely used, one of which is solar energy, for various needs, one of which is for solar power generation by using solar cells as the medium. In generating electricity, solar cells are very dependent on the intensity of the sun so as to produce currents and voltages that are not constant. Because of this, a monitoring system was created to monitor the current and voltage in a solar cell module to determine current and voltage conditions. In this study, the monitoring system used wireless data transmission via the XBee S2C module installed on the Arduino Mega 2560 and Arduino UNO. The INA 219 sensor is mounted on a solar cell module along with a relay module connected to the Arduino Mega 2560 and the XBee S2C module. The test results show that wireless data transmission cannot be used indoors at a distance of more than 20 meters. The INA 219 sensor as a reader for DC current and voltage parameters has an error rate of 0.49% to 0.75% for voltage and for DC current readings it has an error rate of 1.85%. The results of current and voltage readings are displayed on a LabVIEW interface in real-time and can be accessed via a web browser using a local network. Relay control carried out through LabVIEW has a delay time of 6.08 seconds. Logging data can be stored in .xls files and data displayed on a web browser has a delay of one to two seconds.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43657276","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

Studi Perancangan Instalasi Penerangan dan Pengkondisi Suhu Ruangan Pada Gedung Bertingkat Las Mesin Las Machines建筑作战与温度调节空间规划设置研究

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1895

V. Prasetia, Erna Alimudin, Purwiyanto Purwiyanto, M. Yusuf, Mohammad Nurhilal

引用次数: 0

Perhitungan Pengendalian Persediaan Fast Moving Spare Part Dengan Metode Min-Max Stock 最小-最大库存法计算快速移动备件供应控制

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1933

A. Khairunnisa, Braam Delfian Prihadianto

引用次数: 0

Rancang Bangun Sistem Pengisian Otomatis Merica Bubuk Berbasis Kontroler Arduino Nano 设计一种基于纳米控制的胡椒粉自动充电系统

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1923

Zaenurohman Zaenurohman, Galih Mustiko Aji, Hera Susanti

{"title":"Rancang Bangun Sistem Pengisian Otomatis Merica Bubuk Berbasis Kontroler Arduino Nano","authors":"Zaenurohman Zaenurohman, Galih Mustiko Aji, Hera Susanti","doi":"10.35970/infotekmesin.v14i2.1923","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1923","url":null,"abstract":"Pepper powder is currently widely marketed in packaged form. The process of packing pepper manually has several drawbacks. In addition to the speed of the packaging process, there is also the problem of weighing the packaging accurately. This study aims to design and build a tool for automatically filling pepper powder into bottles based on Arduino Nano. Conveyors are used to place bottles precisely at the filling position. The process of filling the powdered pepper automatically starts after the bottle is detected by the photoelectric sensor. A Screw is used to put the ground pepper into the bottle, while the load cell sensor is used to measure the weight of the powdered pepper filling. The performance of this filling system shows that the average duration of filling time is 0.97 seconds per gram, while the accuracy of reading the weight of filling pepper powder has an error rate of 2.78%. Information during the filling process, which includes the weight of the powder that has entered the bottle, the amount of production, and information on the remaining ingredients available in the hopper, can be properly monitored through the HMI display.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41448988","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

Metode Economic Order Quantity dalam Sistem Manajemen Stok Bandar Barang Bekas (SiBandar) 自由库存管理系统中的经济订单量方法（SiBandar）

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1937

Cahya Vikasari, Riyadi Purwanto, Dwi Novia Prasetyanti

{"title":"Metode Economic Order Quantity dalam Sistem Manajemen Stok Bandar Barang Bekas (SiBandar)","authors":"Cahya Vikasari, Riyadi Purwanto, Dwi Novia Prasetyanti","doi":"10.35970/infotekmesin.v14i2.1937","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1937","url":null,"abstract":"Junk goods are no longer piles of worthless goods for businessmen who are keen to see the economic value by taking this opportunity by becoming a pelapak company to buy and sell junk goods purchased from collectors to be sold to buyers. The problems found with Pelapak include the manual recording of sales administration which has the potential to cause recording errors. Pelapak does not know for sure the stock of junk they own and those owned by collectors because the locations of the collectors are far apart. Orders of junk goods between pelapak and collectors are still via telephone so pelapak does not know which collectors are in the process of sending goods. Problems also occur on the part of collectors including unprofessional sales transactions. Based on these problems, a used goods stock management system is needed using the Economic Order Quantity (EOQ) method. The purpose of this study is to build a used goods stock management information system that can monitor the availability of used goods owned by collectors and pelapak. System development uses the prototype method and designs with concepts. The results of the research are that the system created can help find out the stock and the amount in each collector, recap sales reports, provide accurate information, facilitate business transactions and fulfill sales targets to buyers. \u0000 ","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43834321","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

Klasifikasi Opini Publik di Twitter Terhadap Bakal Calon Presiden Indonesia Tahun 2024 Menggunakan LSTM Secara Realtime Berbasis Website 使用实时LSTM网站对推特上反对2024年印尼总统来电的公众意见进行分类

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1908

Muhammad Rizki, M. Hidayattullah, Dwi Intan Af’idah

{"title":"Klasifikasi Opini Publik di Twitter Terhadap Bakal Calon Presiden Indonesia Tahun 2024 Menggunakan LSTM Secara Realtime Berbasis Website","authors":"Muhammad Rizki, M. Hidayattullah, Dwi Intan Af’idah","doi":"10.35970/infotekmesin.v14i2.1908","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1908","url":null,"abstract":"The analysis of public opinions from Indonesian netizens regarding the potential presidential candidates for Indonesia in 2024 on Twitter is challenging. Human-based classification of the candidates on Twitter has limitations as it requires expertise and a considerable amount of time to process the data. Therefore, a system that provides realtime visualization of public opinion classification is necessary. Previous research only focused on model evaluation, while this study aims to implement the best model on a website. The objective of this research is to develop a system for monitoring the Twitter-based public opinion classification of the potential presidential candidates for Indonesia in 2024 within specific time frames. The training process utilizes the LSTM method, resulting in a model with an accuracy of 76%. Parameters such as batch size, dropout, and learning rate were tested. The data used in this study was obtained by crawling Twitter using the keywords Ganjar Pranowo, Anies Baswedan, and Prabowo Subianto. The LSTM model was then implemented in a website-based system that generates a dashboard with features such as a color-coded map displaying the highest levels of positive sentiment for each candidate in each province, the overall classification count for each candidate, and filters for sentiment classification based on province and specific time frames. ","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42366307","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

Analisis Kekuatan Tarik dan Regangan Filamen Carbon Fiber Hasil 3D Print dengan Variasi Fill Density

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1936

Braam Delfian Prihadianto, S. Darmo, Dani Anggoro Hasan, Dovan Ndaru Ananda

{"title":"Analisis Kekuatan Tarik dan Regangan Filamen Carbon Fiber Hasil 3D Print dengan Variasi Fill Density","authors":"Braam Delfian Prihadianto, S. Darmo, Dani Anggoro Hasan, Dovan Ndaru Ananda","doi":"10.35970/infotekmesin.v14i2.1936","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1936","url":null,"abstract":"Mechanical properties problems that are closely related to the strength of 3D printed products generally occur during the development of 3D printing machines, In which several components used are the results of additive manufacturing technology. The damages generally occur in the components that receive force and the damage is in the form of cracks and fractures. The focus of this study is to determine the effects of increasing the value of fill density on mechanical properties, especially tensile strength and strain with carbon fiber filament material. This study used an experimental method using two types of filament material: nylon carbon fiber and PLA carbon fiber with a diameter of 1.75 mm for each filament and a recommended printing temperature of 190-260°C. Both types of filaments were printed using a direct extruder type 3D printing machine with a build size of 180 mm x 180 mm x 180 mm and printing was carried out at atmospheric pressure and a horizontal printing area. The Universal Testing Machine carried out mechanical properties testing implementation related to tensile strength and strain. Based on the results of experiments and tests that have been carried out, the strain values are 16.970 – 26.681% and the tensile strength is 19.244 – 23.899 MPa for nylon carbon fiber filament material. Whereas the PLA carbon fiber filament material, the strain value is 7.673 – 15.546%, and the tensile strength is 18.580 – 24.552 MPa. Therefore, based on the test results, it is known that the fill density parameter value has an influence on the strain value and tensile strength so that it can be used as a reference in setting machining parameters.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43720348","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

Rancang Bangun Aplikasi Peramalan Jumlah Penumpang Menggunakan Long Short-Term Memory (LSTM) 使用长短期记忆（LSTM）开发乘客人数管理应用程序

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1911

Muhammad Davi, Edi Winarko

{"title":"Rancang Bangun Aplikasi Peramalan Jumlah Penumpang Menggunakan Long Short-Term Memory (LSTM)","authors":"Muhammad Davi, Edi Winarko","doi":"10.35970/infotekmesin.v14i2.1911","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1911","url":null,"abstract":"Public services such as public transportation are closely related to user satisfaction. Busway DKI Jakarta is one of the first public transportation services in Southeast and South Asia. In order to maintain passenger satisfaction, the management of Busway continues to improve services such as adding buses and opening a new line. Opening a new lane or adding buses must necessarily be adjusted also with the increasing number of passengers. So to know the number of passengers in the future, it is necessary to forecast the number of passengers through existing historical data. The historical data used is time series data from January 2015 to January 2016. The method used in forecasting is Long Short-Term Memory (LSTM), one of the machine learning methods. The method is measured in accuracy using Root Mean Squared Error (RMSE) and Mean Absolute Percentage Error (MAPE). As a comparison of LSTM accuracy in forecasting, we also use the Exponential Smoothing method. Based on the results of forecasting, the most and least dominant method of producing RMSE and MAPE is the LSTM method. Only in corridor 3 LSTM can not provide RMSE and MAPE values below baseline values. While corridor 5 LSTM can give better results after the data transformation process by using exponential smoothing. However, overall the LSTM method provides the best accuracy based on the lowest average RMSE and MAPE values, namely RMSE of 2640.53 and MAPE of 9.14%.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46249181","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

Analisa Tensile Strength Komposit Serat Kulit Pohon Waru dengan Kombinasi Serat Karbon Kevlar Sebagai Material Reinforcement 分析Waru树皮纤维复合材料与碳纤维复合复合材料的张力性

Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1888

Handry Stefan Enus, G. Soebiyakto, Arief Rizki Fadhillah, Dadang Hermawan

{"title":"Analisa Tensile Strength Komposit Serat Kulit Pohon Waru dengan Kombinasi Serat Karbon Kevlar Sebagai Material Reinforcement","authors":"Handry Stefan Enus, G. Soebiyakto, Arief Rizki Fadhillah, Dadang Hermawan","doi":"10.35970/infotekmesin.v14i2.1888","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1888","url":null,"abstract":"In increasing the tensile strength of the waru tree bark fiber composite (Hibiscus tiliaceus), it is necessary to have a combination of reinforcement used in the composite material. One of the reinforcement materials that can be combined is carbon fiber kevlar. Kevlar carbon fiber has several advantages, including low density, absorbing vibrations well, and it is resistant to chemical solutions. The specific objectives of this study were to determine the maximum strain stress, modulus of elasticity, and fracture analysis of hibiscus bark fiber composites with a combination of kevlar carbon fiber as a reinforcement material. The independent variable in the study was comparing the composite with the different reinforcement materials used, including 100% hibiscus (Hibiscus tiliaceus) bark fiber, 100% kevlar carbon fiber, 50% combination fiber of hibiscus (Hibiscus tiliaceus) bark, and 50% kevlar carbon. The process of making composites uses the vacuum infusion resin method with specimens referring to the ASTM D638-03 type I standard. The results of this study are that combining kevlar carbon fiber as a reinforcement material can improve the mechanical properties in terms of the tensile strength of the hibiscus tree bark fiber composite. \u0000 ","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44354454","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