Pub Date : 2022-04-30DOI: 10.53564/akademika.v14i2.867
Nilawati, Riswan, Desy Yeniwati, Rafindo
Educational games as additional media in the process of learning and teaching early childhood in Harapan Bunda Kindergarten, Mestong District, Muaro Jambi Regency. Where in this kindergarten there is no available learning media in the form of educational games. The results of this research are expected to be used as additional references in early childhood learning. To create a quality generation, education must be carried out from an early age in this case through Early Childhood Education. This game is designed with educational elements and attractive designs for children with the aim of fostering learning motivation with simulation media in the form of games.
Muaro Jambi Regency Mestong District Harapan Bunda幼儿园在幼儿学习和教学过程中作为附加媒体的教育游戏。在这个幼儿园里，没有教育游戏这种学习媒介。本研究结果可望为幼儿学习提供额外的参考。为了创造优质的一代，教育必须从小就开始，在这种情况下，通过幼儿教育。此游戏以游戏的形式，以模拟媒体的形式，培养儿童的学习动机，设计富有教育元素和吸引力。
{"title":"GAME EDUKASI PENGENALAN HURUF DAN ANGKA USIA DINI","authors":"Nilawati, Riswan, Desy Yeniwati, Rafindo","doi":"10.53564/akademika.v14i2.867","DOIUrl":"https://doi.org/10.53564/akademika.v14i2.867","url":null,"abstract":"Educational games as additional media in the process of learning and teaching early childhood in Harapan Bunda Kindergarten, Mestong District, Muaro Jambi Regency. Where in this kindergarten there is no available learning media in the form of educational games. The results of this research are expected to be used as additional references in early childhood learning. To create a quality generation, education must be carried out from an early age in this case through Early Childhood Education. This game is designed with educational elements and attractive designs for children with the aim of fostering learning motivation with simulation media in the form of games.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87952417","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}
Pub Date : 2022-04-30DOI: 10.53564/akademika.v14i2.852
Elzas, Masayu Rahmatina
The aim of the research is to create an information system for processing under privileged scholarships to produce faster, more precise, accurate and useful data for SMPN 1 Tebo Regency. Input Needs Data entry consists of input requirements at SMP Negeri 1 Tebo Regency, namely data on prospective scholarship recipients, data on criteria for determining scholarship recipients, and reports in SMP Negeri 1 Tebo Regency. Process Needs Process requirements needed in SMP Negeri 1 Tebo Regency have several parts, namely the process of data on prospective scholarship recipients, data processing of criteria for determining scholarship recipients, recap data processing and the process of printing scholarship recipient reports. Output Needs Expenditure data generated is in the form of information that will be displayed, including scholarship recipient reports. The scholarship data collection system that runs at SMPN 1 Kab. Tebo still has a few short comings where the admin must be careful in inputting data. With this designed system, it provides easy delivery of information to SMPN 1 Kab.
这项研究的目的是建立一个信息系统，用于处理特权奖学金，为SMPN 1 Tebo reggency提供更快、更精确、准确和有用的数据。输入需求数据输入包括SMP Negeri 1 Tebo Regency的输入要求，即关于潜在奖学金获得者的数据、确定奖学金获得者标准的数据以及SMP Negeri 1 Tebo Regency的报告。SMP Negeri 1 Tebo Regency所需的流程要求有几个部分，即潜在奖学金获得者的数据处理过程、确定奖学金获得者标准的数据处理过程、概述数据处理过程和打印奖学金获得者报告的过程。产生的支出数据将以信息的形式显示，包括奖学金获得者报告。smp1kab的奖学金数据收集系统。Tebo仍然有一些缺点，管理员在输入数据时必须小心。通过该系统，可以方便地向smp1kab传输信息。
{"title":"SISTEM INFORMASI PENDATAAN BEASISWA KURANG MAMPU DENGAN PARAMETER PENGHASILAN ORANG TUA DAN KONDISI RUMAH DI SMPN 1 KAB. TEBO","authors":"Elzas, Masayu Rahmatina","doi":"10.53564/akademika.v14i2.852","DOIUrl":"https://doi.org/10.53564/akademika.v14i2.852","url":null,"abstract":"The aim of the research is to create an information system for processing under privileged scholarships to produce faster, more precise, accurate and useful data for SMPN 1 Tebo Regency. Input Needs Data entry consists of input requirements at SMP Negeri 1 Tebo Regency, namely data on prospective scholarship recipients, data on criteria for determining scholarship recipients, and reports in SMP Negeri 1 Tebo Regency. Process Needs Process requirements needed in SMP Negeri 1 Tebo Regency have several parts, namely the process of data on prospective scholarship recipients, data processing of criteria for determining scholarship recipients, recap data processing and the process of printing scholarship recipient reports. Output Needs Expenditure data generated is in the form of information that will be displayed, including scholarship recipient reports. The scholarship data collection system that runs at SMPN 1 Kab. Tebo still has a few short comings where the admin must be careful in inputting data. With this designed system, it provides easy delivery of information to SMPN 1 Kab.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75396354","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}
Pub Date : 2022-04-30DOI: 10.53564/akademika.v14i2.862
Mulyadi, Ahmad Syarif
The library at SMA Negeri XI Jambi City in data processing still uses a recording system or conventional. In the process of processing the data by taking notes on books for members who want to borrow books from the library. And students sometimes forget when to return the book. Based on this, it is necessary to develop an information system that can provide accurate data, process data quickly and provide information to students to finally return books using a website information system. Development of this information system is the best solution in solving existing problems. at SMA Negeri XI Jambi City, as well as with a computerized system, an effective and efficient activity can be achieved in supporting activities in processing library data at this school.
{"title":"PENGEMBANGAN SISTEM INFORMASI ADMINISTRASI PERPUSTAKAAN SMA XI KOTA JAMBI","authors":"Mulyadi, Ahmad Syarif","doi":"10.53564/akademika.v14i2.862","DOIUrl":"https://doi.org/10.53564/akademika.v14i2.862","url":null,"abstract":"The library at SMA Negeri XI Jambi City in data processing still uses a recording system or conventional. In the process of processing the data by taking notes on books for members who want to borrow books from the library. And students sometimes forget when to return the book. Based on this, it is necessary to develop an information system that can provide accurate data, process data quickly and provide information to students to finally return books using a website information system. Development of this information system is the best solution in solving existing problems. at SMA Negeri XI Jambi City, as well as with a computerized system, an effective and efficient activity can be achieved in supporting activities in processing library data at this school.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78888218","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}
Information System Application Reporting Departure and Arrival of Transport Equipment of the Jambi Immigration Office is a system of convenience in making reports on recording ship departures and ship arrivals at ports from things such as data recap, report entry and also ease of inspection on ships dating and departing. From where in building the system in this system development tools are used, namely Data Flow Diagrams (DFD) and Context Diagrams, as well as using the PHP and HTML programming languages and MySQL as databases.
{"title":"APLIKASI LAPORAN KEBERANGKATAN DAN KEDATANGAN ALAT ANGKUT KANTOR IMIGRASI JAMBI","authors":"Lailyn Puad, Rike Limia Budiarti, Delvi Gloria Lbn.Tobing","doi":"10.53564/akademika.v14i2.858","DOIUrl":"https://doi.org/10.53564/akademika.v14i2.858","url":null,"abstract":"Information System Application Reporting Departure and Arrival of Transport Equipment of the Jambi Immigration Office is a system of convenience in making reports on recording ship departures and ship arrivals at ports from things such as data recap, report entry and also ease of inspection on ships dating and departing. From where in building the system in this system development tools are used, namely Data Flow Diagrams (DFD) and Context Diagrams, as well as using the PHP and HTML programming languages and MySQL as databases.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80845975","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}
Pub Date : 2022-04-30DOI: 10.53564/akademika.v14i2.859
Pariyadi, Muhammad Rinaldi Pratama
Archives have an important role in office administration activities. The archive acts as a source of information and is also used as evidence of accountability for the implementation of activities and finances to leaders and other relevant stakeholders. So that in its management it must be carried out in an orderly and well structured manner. The purpose of this practical work research is to build an electronic archive application system at the Badan Akreditasi Nasional Sekolah/Madrasah Provinsi Jambi in order to facilitate the archiving process and retrieval of required information safely, quickly, and efficiently.This research was conducted using the Software Development Life Cycle (SDLC) waterfall model where the application development process with this method is carried out systematically and sequentially, starting with system analysis, system design, development, testing, to operation and maintenance. The electronic archive application (E-Archive) at the Badan Akreditasi Nasional Sekolah/Madrasah Provinsi Jambi was developed web-based using the PHP script language so that the archiving process can be carried out online and related files are stored digitally.
档案在办公室管理活动中起着重要的作用。该档案作为信息来源，也用作向领导人和其他相关利益攸关方执行活动和财务的问责证据。因此，在其管理中，必须以有序和结构良好的方式进行。这项实际工作研究的目的是在Badan Akreditasi national Sekolah/Madrasah Provinsi Jambi建立一个电子档案应用系统，以便安全、迅速和有效地促进存档过程和检索所需资料。本研究采用软件开发生命周期(SDLC)瀑布模型，系统地、顺序地进行应用程序开发过程，从系统分析、系统设计、开发、测试到运维。Badan Akreditasi Nasional Sekolah/Madrasah Provinsi Jambi的电子档案应用程序(E-Archive)是使用PHP脚本语言基于网络开发的，因此存档过程可以在线进行，相关文件以数字方式存储。
{"title":"APLIKASI ARSIP ELEKTRONIK (E-ARCHIVE) PADA BADAN AKREDITASI NASIONAL SEKOLAH/MADRASAH PROVINSI JAMBI","authors":"Pariyadi, Muhammad Rinaldi Pratama","doi":"10.53564/akademika.v14i2.859","DOIUrl":"https://doi.org/10.53564/akademika.v14i2.859","url":null,"abstract":"Archives have an important role in office administration activities. The archive acts as a source of information and is also used as evidence of accountability for the implementation of activities and finances to leaders and other relevant stakeholders. So that in its management it must be carried out in an orderly and well structured manner. The purpose of this practical work research is to build an electronic archive application system at the Badan Akreditasi Nasional Sekolah/Madrasah Provinsi Jambi in order to facilitate the archiving process and retrieval of required information safely, quickly, and efficiently.This research was conducted using the Software Development Life Cycle (SDLC) waterfall model where the application development process with this method is carried out systematically and sequentially, starting with system analysis, system design, development, testing, to operation and maintenance. The electronic archive application (E-Archive) at the Badan Akreditasi Nasional Sekolah/Madrasah Provinsi Jambi was developed web-based using the PHP script language so that the archiving process can be carried out online and related files are stored digitally.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75000904","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}
Pub Date : 2022-04-30DOI: 10.53564/akademika.v14i2.866
Rike Limia Budiarti, Gina Cendana
Mega Central Finance (MCF) Group is a company under CT.Corpora. The Mega Central Finance (MCF) Group company functions as a company engaged in financing and credit, located in Muara Bulian. The purpose of this study using the "K-means" data mining method is to obtain data reports on customers who are entitled to receive loans from the Mega Central Finance (MCF) Group. Clustering includes inputting data from customers who apply for loans, then entering the registration process to enter the customer's name, the calculation process using RapidMiner. It takes several variables used in clustering, namely the variable "Amount of Loans, Term, Income, Number of Pickup Vehicles". The results of clustering obtained three clusters, namely cluster 1 there are 7 active customer data which has a very small number of clusters. Cluster 2 contains 93 passive customer data which has a cluster number with the highest number of customer data from cluster 1 and cluster 3. Cluster 3 contains 50 repeat order customer data which has a moderate number of clusters. Finally, the results from the three clusters above are obtained.
兆丰金融(MCF)集团是一家隶属于CT.Corpora的公司。Mega Central Finance (MCF) Group公司是一家从事融资和信贷的公司，位于Muara Bulian。本研究使用“K-means”数据挖掘方法的目的是获得有权从Mega Central Finance (MCF) Group获得贷款的客户的数据报告。聚类包括输入申请贷款的客户的数据，然后进入注册过程输入客户的姓名，计算过程使用RapidMiner。它取聚类中使用的几个变量，即变量“贷款金额、期限、收入、皮卡车数量”。聚类的结果得到三个聚类，即聚类1中有7个活跃客户数据，其中聚类数量非常少。集群2包含93个被动客户数据，其集群号中来自集群1和集群3的客户数据数量最多。集群3包含50个重复订单客户数据，集群数量适中。最后，从以上三个聚类中得到结果。
{"title":"KLASIFIKASI DATA NASABAH KREDIT PINJAMAN MENGGUNAKAN DATA MINING DENGAN METODE K-MEANS PADA MEGA CENTRAL FINANCE","authors":"Rike Limia Budiarti, Gina Cendana","doi":"10.53564/akademika.v14i2.866","DOIUrl":"https://doi.org/10.53564/akademika.v14i2.866","url":null,"abstract":"Mega Central Finance (MCF) Group is a company under CT.Corpora. The Mega Central Finance (MCF) Group company functions as a company engaged in financing and credit, located in Muara Bulian. The purpose of this study using the \"K-means\" data mining method is to obtain data reports on customers who are entitled to receive loans from the Mega Central Finance (MCF) Group. Clustering includes inputting data from customers who apply for loans, then entering the registration process to enter the customer's name, the calculation process using RapidMiner. It takes several variables used in clustering, namely the variable \"Amount of Loans, Term, Income, Number of Pickup Vehicles\". The results of clustering obtained three clusters, namely cluster 1 there are 7 active customer data which has a very small number of clusters. Cluster 2 contains 93 passive customer data which has a cluster number with the highest number of customer data from cluster 1 and cluster 3. Cluster 3 contains 50 repeat order customer data which has a moderate number of clusters. Finally, the results from the three clusters above are obtained.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74036671","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}
Pub Date : 2022-04-30DOI: 10.53564/akademika.v14i2.864
Novhirtamely Kahar, Widya Aritonang
The determination of the study program is important for prospective students to enter state universities and private universities this is because it is a decision to hone, explore the abilities of each prospective student and reduce students who fail or drop out. This research is expected so that students know the appropriate study program based on their abilities. The data inputted is personal data of prospective students, average values, majors and test scores with Alternative study programs, namely study programs at the Faculty of Computer Science and The output of the data processed is in the form of results about selected study programs. The method used by researchers is the perceptron method, Perceptron is one of the simple ANN training methods used the first training algorithm procedure. It consists of a single neuron with synaptic weights that is regulated using the hard limit activation function. After an analysis of the ANN simulation of the perceptron algorithm with Matlab in determining the majors, the results of the perceptron method were obtained, namely the perceptron method was able to determine the target output and actual output as much as54.28%.
{"title":"IMPLEMENTASI JARINGAN SYARAF TIRUAN DENGAN ALGORITMA PERCEPTRON DALAM PENENTUAN PROGRAM STUDI MAHASISWA BARU","authors":"Novhirtamely Kahar, Widya Aritonang","doi":"10.53564/akademika.v14i2.864","DOIUrl":"https://doi.org/10.53564/akademika.v14i2.864","url":null,"abstract":"The determination of the study program is important for prospective students to enter state universities and private universities this is because it is a decision to hone, explore the abilities of each prospective student and reduce students who fail or drop out. This research is expected so that students know the appropriate study program based on their abilities. The data inputted is personal data of prospective students, average values, majors and test scores with Alternative study programs, namely study programs at the Faculty of Computer Science and The output of the data processed is in the form of results about selected study programs. The method used by researchers is the perceptron method, Perceptron is one of the simple ANN training methods used the first training algorithm procedure. It consists of a single neuron with synaptic weights that is regulated using the hard limit activation function. After an analysis of the ANN simulation of the perceptron algorithm with Matlab in determining the majors, the results of the perceptron method were obtained, namely the perceptron method was able to determine the target output and actual output as much as54.28%.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74818086","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}
Pub Date : 2022-02-28DOI: 10.22487/j24775185.2022.v11.i1.pp56-63
C. Bijang, M. Tanasale, Dewi Sri, Tahril Tahril, T. Azis
Synthesis of activated carbon from cempedak peel waste is carried out to utilize biomass waste. This study aimed to synthesize and characterize activated carbon from cempedak peel waste. The synthesis was carried out by chemical activation using phosphoric acid with a dry impregnation ratio of 1:4 (g sample:g H3PO4). Samples impregnated for 24 hours were then heated at 250℃—and then calcined at 350℃ and 450℃. The XRD and FTIR characterization results indicated that the activated carbon obtained had an amorphous structure and the activated carbon obtained had hydroxyl, carbonyl, and carboxylic groups. Activated carbon with the highest yield was obtained at a temperature of 350, namely 43%. The results of determining the water content of activated carbon obtained are 8.36% at 350 0C and 7.1% at 450 ℃. The value of water content and ash content of activated carbon from the skin of this cempedak fruit has met the Indonesian National Standard (SNI 06-3730-1995). The best-activated carbon yield was at a calcination temperature of 450, with the percentage of adsorption efficiency on methylene blue of 98.88%.
{"title":"Synthesis and Characterization of Activated Carbon from Waste Compedak Fruit (Artocarpus Champeden) Activated H3PO4 as Adsorbent of Methylene Blue","authors":"C. Bijang, M. Tanasale, Dewi Sri, Tahril Tahril, T. Azis","doi":"10.22487/j24775185.2022.v11.i1.pp56-63","DOIUrl":"https://doi.org/10.22487/j24775185.2022.v11.i1.pp56-63","url":null,"abstract":"Synthesis of activated carbon from cempedak peel waste is carried out to utilize biomass waste. This study aimed to synthesize and characterize activated carbon from cempedak peel waste. The synthesis was carried out by chemical activation using phosphoric acid with a dry impregnation ratio of 1:4 (g sample:g H3PO4). Samples impregnated for 24 hours were then heated at 250℃—and then calcined at 350℃ and 450℃. The XRD and FTIR characterization results indicated that the activated carbon obtained had an amorphous structure and the activated carbon obtained had hydroxyl, carbonyl, and carboxylic groups. Activated carbon with the highest yield was obtained at a temperature of 350, namely 43%. The results of determining the water content of activated carbon obtained are 8.36% at 350 0C and 7.1% at 450 ℃. The value of water content and ash content of activated carbon from the skin of this cempedak fruit has met the Indonesian National Standard (SNI 06-3730-1995). The best-activated carbon yield was at a calcination temperature of 450, with the percentage of adsorption efficiency on methylene blue of 98.88%.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76842216","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}
Pub Date : 2022-02-28DOI: 10.22487/j24775185.2022.v11.i1.pp19-25
Gatot Triyanto, Ricky R. Saputro, Chepi Reynaldir, Khoirudin Khoirudin, S. Sukarman
This study discusses the implementation of redox reactions on the thickness test of the galvanized (zinc-coated) layer using the JIS-H-0401 standard to help Small and Medium Enterprises (SMEs) industries. Some of the finished products go through the galvanizing process in the metal processing industry. Quality constraints, especially related to the thickness of the galvanic (zinc-coated) layer, have become an object that is less controlled because of the limitations of the test equipment used. This research uses an experimental method applied to one of its products: a flat washer with SPCC material and a thickness of about 2.20 mm. SPCC - SD material is classified as low carbon steel based on its carbon content. 5-unit flat washers were identified with sample codes A, B, C, D, and E. Flat washers have an internal diameter of 22.65 - 22.7 mm. In comparison, the outer diameter is between 43.75 - 43.80. The redox reaction process uses HCl (hydrochloric acid) with a concentration of 1 M, which is diluted with water (H2O). The zinc thickness test results show that the flat washer has an average thickness of 10.52 microns with a minimum and maximum thickness variation of 10.66 -10.72 microns.
{"title":"Analysis Redox Reaction on Zinc-Coating Thickness Test in Metal Processing Industry of Small and Medium Enterprises","authors":"Gatot Triyanto, Ricky R. Saputro, Chepi Reynaldir, Khoirudin Khoirudin, S. Sukarman","doi":"10.22487/j24775185.2022.v11.i1.pp19-25","DOIUrl":"https://doi.org/10.22487/j24775185.2022.v11.i1.pp19-25","url":null,"abstract":"This study discusses the implementation of redox reactions on the thickness test of the galvanized (zinc-coated) layer using the JIS-H-0401 standard to help Small and Medium Enterprises (SMEs) industries. Some of the finished products go through the galvanizing process in the metal processing industry. Quality constraints, especially related to the thickness of the galvanic (zinc-coated) layer, have become an object that is less controlled because of the limitations of the test equipment used. This research uses an experimental method applied to one of its products: a flat washer with SPCC material and a thickness of about 2.20 mm. SPCC - SD material is classified as low carbon steel based on its carbon content. 5-unit flat washers were identified with sample codes A, B, C, D, and E. Flat washers have an internal diameter of 22.65 - 22.7 mm. In comparison, the outer diameter is between 43.75 - 43.80. The redox reaction process uses HCl (hydrochloric acid) with a concentration of 1 M, which is diluted with water (H2O). The zinc thickness test results show that the flat washer has an average thickness of 10.52 microns with a minimum and maximum thickness variation of 10.66 -10.72 microns.","PeriodicalId":17695,"journal":{"name":"Jurnal Akademika Kimia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80832881","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}
Pub Date : 2022-02-28DOI: 10.22487/j24775185.2022.v11.i1.pp14-18
Hety E. Panambulo, R. Ratman, Nurida Nurida
Development research has been carried out to produce a high school chemistry learning module that oriented Central Sulawesi’s local wisdom in acid-base solutions. This research was conducted using research and development (R&D) methods. The goal of this study was to ascertain the validity and applicability of the developed learning modules. Development of the learning module is expected to be used by teachers as users and for students in their independent learning, increasing the understanding of concepts and getting to know local wisdom in the Central Sulawesi region. The validity of the learning module was determined by a validation test conducted by specialists in the topic, medium, and user. In contrast, the practicality of the learning module was determined by the outcomes of the module's implementation by students. The validation results showed that the average score of the material expert of 2,66 was categorized as “valid,” the average score of the media expert was 3,29 with the category “valid,” and the average score of the user was 3,53 with the category “valid.” The results implementation of learning modules using students' response questionnaires obtained respectively, a percentage of 29% of students responded was “very practical,” 64,4% of students responded war “practical,” 6% of students responded was “impractical,” and 0% of students respond was “very impractical.” Based on these results, it can be concluded that the development module was “valid” and “practical” in using the learning process.
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