Articles

Found 25 Documents
Search

Perancangan dan Implementasi Rangkaian Charger pada Pembangkit Sell Surya untuk Aplikasi Rumah Tangga Efrizon, Efrizon; Abidin, Zainal
POLI REKAYASA Vol 5, No 1 (2009)
Publisher : POLI REKAYASA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Electricity energy source is an important thing nowadays. All people who live in all regions such as city and village need this energy. For this reason, it is important to design and produce an equipment to keep electricity energy. This equipment is made of charge circuit, solar cell, accu and another electronics circuit such as an inverter. Solar cell is used to catch energy from the sun and send it to charge circuit and keep as electricity energy source. This design can help many people who need electricity energy source AC 220 Volt and there is possibility to help an electric and electronics equipment which need AC 220 Volt power supply.
Faktor-Faktor Yang Mempengaruhi Staf Pengajar Di Institusi Pendidikan Tinggi Untuk Menggunakan Multimedia rinaldi, Rinaldi; efrizon, Efrizon
Elektron : Jurnal Ilmiah Vol 6 No 1 (2014): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (54.134 KB) | DOI: 10.30630/eji.6.1.64

Abstract

This study is a descriptive study of the application towards multimedia that conducted in higher institution, West Sumatera with the objectives of assessing the factors affecting multimedia application in higher institution lecturers. It employed a survey questionnaire to collect respondents’ responses by using Likert-5 point type scales. It was conducted on 250 lecturers by using stratified random sampling from three types of higher institutions. Data collected and analyzed by using Statistical for the Social Sciences 19.0 (SPSS 19.0). Descriptive analysis shows that factors affecting multimedia application are limited amount of equipments, less support from the institution, no confidence in using multimedia for teaching, damaged equipments, insufficient time to prepare multimedia-based teaching materials, not enough salaries to assist in carrying out their duties properly, increased teaching workloads, ineffective multimedia training and no rewards or incentives from the institution for using multimedia in teaching.  As conclusion, this study can be used by the relevant authorities to take action in improving education.
PENGARUH METODE PEMBELAJARAN EXPLICIT INSTRUCTION TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN PEMROGRAMAN WEB DINAMIS KELAS XI JURUSAN REKAYASA PERANGKAT LUNAK (RPL) DI SMK NEGERI 1 SINTUK TOBOH GADANG Yumiarti, Dewi Sismira; Efrizon, Efrizon; Huda, Asrul
Jurnal Vokasional Teknik Elektronika dan Informatika Vol 6, No 1 (2018): Januari - Juni 2018
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

The purpose of this research is to reveal the magnitude of the percentage of the influence of the application of explicit instruction learning method with direct learning model on the subjects of Dynamic Web Programming class X1 Software Engineering semester odd SMK Negeri 1 Sintuk TobohGadang Year Teaching 2016/2017. This type of research is quantitative using experimental type quasi experimental design research method. This research was conducted at SMK Negeri 1 SintukTobohGadang on 17 july until 17 august 2017. Population in this research that is student of class X1 RPL SMK Negeri 1 SintukTobohGadang. Sampling technique used is probability sampling with simple random sampling technique. The selected to be samples in this study are students of class X1 RPL2 experimental class and X1 RPL1 as control class. Based on the result of the research, the average of learning result of the experimental class is 82,48, while the control class get the average value 77,75. The result of hypothesis calculation at significant level α = 0,05 got tcount>ttable that is (2,278> 1, 677), because big tcount of ttable, null hypothesis (H0) rejected and alternative hypothesis (Ha) accepted. This means that explicit instruction learning method has a positive effect on the learning outcomes Dynamic Web Programming students of class X1 SMK Negeri 1 SintukTobohGadang. Keywords:Learning outcomes, explicit instruction learning methods, direct learning models
PENERAPAN METODE PEMBELAJARAN TEAM ASSISTED INDIVIDUALIZATION (TAI) UNTUK MENINGKATKAN HASIL BELAJAR MATA PELAJARAN SIMULASI DIGITAL KELAS X RPL DI SMK NEGERI 4 PAYAKUMBUH Roza Putri, Nova Perdana; Efrizon, Efrizon; Sriwahyuni, Titi
Jurnal Vokasional Teknik Elektronika dan Informatika Vol 6, No 1 (2018): Januari - Juni 2018
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

The purpose of this research is to reveal the magnitude of the percentage of the influence of the application of Team Assisted Individualization (TAI) learning method with direct learning model on the subjects of Digital Simulation class X Software Engineering semester odd SMK Negeri 4 Payakumbuh Year Teaching 2017/2018. This type of research is quantitative using experimental type quasi experimental design research method. This research was conducted at SMK Negeri 4 Payakumbuh on 15 October until 15 November 2017. Population in this research that is student of class X, XI, XII RPL SMK Negeri 4 Payakumbuh. Sampling technique used is probability sampling with simple random sampling technique. The selected to be samples in this study are students of class X RPL2 experimental class and X1 RPL1 as control class. Based on the result of the research, the average of learning result of the experimental class is 82,71, while the control class get the average value 79,34. The result of hypothesis calculation at significant level α = 0,05 got tcount>ttable that is (3,64> 1, 6668), because big tcount of ttable, null hypothesis (H0) rejected and alternative hypothesis (Ha) accepted. This means that Team Assisted Individualization (TAI) learning method has a positive effect on the learning outcomes Digital Simulation students of class X SMK Negeri 4 Payakumbuh.Keywords: Learning outcomes, Team Assisted Individualization (TAI) learning methods, direct learning models
KONTRIBUSI MOTIVASI BELAJAR DAN SUASANA BELAJAR TERHADAP HASIL BELAJAR PADA MATA PELAJARAN KETERAMPILAN KOMPUTER DAN PENGELOLAAN INFORMASI (KKPI) SISWA KELAS X TKJ SMKN 4 TAKENGON-ACEH TENGAH Badrun, Badrun; Efrizon, Efrizon; Slamet, Legiman
Jurnal Vokasional Teknik Elektronika dan Informatika Vol 4, No 1 (2016): Januari - Juni 2016
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

This study was motivated by the problem of low learning outcomes in subjects Computer Skills and Information Management (KKPI) class X Computer Engineering and Networks in SMK Negeri 4 Takengon, where 30% of students get to learn the results below minimum completeness criteria (KKM). KKM assigned school on the subjects KKPI is 75 with a range of values of 0 - 100. The purpose of this study is to reveal the contribution of learning motivation and learning atmosphere on the results of study subjects Computer Skills and Information Management (KKPI) class X Computer Engineering and Networks SMKN 4 Takengon. This research is a correlation associative nature.The population in this study were all students of class X Computer Engineering and Networks SMKN 4 Takengon, consists of two classes of 40 people. A sampling technique that total sampling where the sample is whole members of the population because the subject is less than 100 persons. The data obtained from the student learning outcomes subject teachers Skills Computer and Information Management (KKPI) SMK Negeri 4 Takengon. While data on the motivation to learn and the learning environment are collected through a questionnaire using a Likert scale that have been tested for validity and reliability. File was analyzed using statistical methods with the help of software Microsoft Excel 2007.The result showed: (1) learning motivation accounted for 24.61% of the results of class X student of SMK Negeri 4 Takengon; (2) Atmosphere Learning accounted for 23.54% of the results of class X student of SMK Negeri 4 Takengon; (3) learning motivation and learning atmosphere together accounted for 47.90% of the results of class X student of SMK Negeri 4 Takengon. So it can be concluded that the motivation to learn and contribute to the learning atmosphere of learning outcomes, the higher the motivation to learn and the better learning environment, then it will get better learning results. Keywords : Motivation, Atmosphere Learning, Learning Outcomes, Associative correlation, Total Sampling.
PENERAPAN MODEL COOPERATIVE LEARNING TYPE GROUP INVESTIGATION UNTUK MENINGKATKAN HASIL BELAJAR MULTIMEDIA 3D KELAS XI JURUSAN MULTIMEDIA (MM) DI SMK NEGERI 2 PADANG PANJANG Fenesa, Ceci; Efrizon, Efrizon; Budayawan, Khairi
Jurnal Vokasional Teknik Elektronika dan Informatika Vol 3, No 1 (2015): Januari - Juni 2015
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

Problems in this study is the lack of achievement of the target of Completeness Minimum Criteria (KKM) the study of students in the subject of Multimedia 3 Dimention. This study aimed to see whether there is any difference in learning outcomes using Model Cooperative Learning Type Group Investigation by learning outcomes that do not use the Model Cooperative Learning Type Group Investigation, which is Direct Instruction. This research is experimental research, this study population was a class XI MM student of SMK Negeri 2 Padang Panjang Academic Year 2014/2015. This research is a quasi experimental. The sampling technique was performed using purposive sampling technique. Experimental class is a class that is treated by using a Model Cooperative Learning type Group Investigation and the control class is the class that uses the Direct Instruction model. Data were collected from the test results in the form of learning objective about a total of 33 items. Data were analyzed manually to normality test, homogeneity, and hypothesis testing. The study of the test results can be the average value of student learning outcomes using Model Cooperative Learning Type Group Investigation is 83.63 while the average value of students who use the Direct Instruction models lower at 74.45 with the percentage difference between classroom learning outcomes experimental and control class is 12.32%. The average value obtained posttest experimental class of 78.4 and an average value of 72.2 posttest control class. The result of t testing showed that the score of  tcounting > ttable (1.962 > 1.672), so that the working hypothesis (H1) is accepted or rejected the null hypothesis (Ho). This means that significantly increase learning outcomes experimental class is greater than the control class learning outcomes.  Key-word : Cooperative Learning Group Investigation, Learning Model, Direct Instruction, Learning Outcomes, Control and Experiment, Multimedia 3 Dimention.
SISTEM INFORMASI MANAJEMEN KEARSIPAN DI SMK NEGERI 5 PADANG PROVINSI SUMATERA BARAT Praguna, Rifeldo; Efrizon, Efrizon; Budayawan, Khairi
Jurnal Vokasional Teknik Elektronika dan Informatika Vol 5, No 1 (2017): Januari - Juni 2017
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

Mail archiving process in SMK 5 Negeri Padang still recorded manually. Therefore, we need an information system management of archives at SMK Negeri 5 Padang to assist in performing document archiving and can handle the process of legalization requests quickly archive. This information system aims to improve the efficiency, accuracy and security of archived documents. Hopefully, by the information system management of archives can alter the performance in SMK Negeri 5 Padang, especially in the archives in order to facilitate the archiving mail. In addition, by using the information in records management system will obtain the benefits of speed and convenience. The purpose of the speed here is through the use of this information system, the process of search, discovery, distribution and archive legalization done in quickly. Information system management of archives at SMK Negeri 5 Padang is designed to involve a web-based programming language HTML, CSS, JavaScript, and an object-oriented PHP, CodeIgniter, and MySQL as database. The system also uses an alias on addressing by applied to the address .htaccess file is actually as one of the security system. Users registered in this system have a private account to be entered into the system ID number and password with MD5 encryption. The results obtained from implementation information system management of archives in SMK 5 Negeri Padang is easier to manage the recording and archiving of mail that were once manual is now digital, and is helpful to demand legalized archives.Keywords : Information System, Archives, School, Web, CodeIgniter.
Perancangan Sistim Monitoring Berbasis Web pada Parkir Sepeda Motor Efrizon, Efrizon; Irmansyah, Muhammad; Madona, Era; Putra, Roni
Seminar Nasional Teknologi Informasi Komunikasi dan Industri 2018: SNTIKI 10
Publisher : UIN Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (808.681 KB)

Abstract

Penelitian ini adalah inovasi teknologi informasi untuk sistim monitoring dari jarak jauh secara realtime melalui WEB. Sistem parkir cerdas yang dibuat ini bertujuan untuk memecahkan salah satu masalah perparkiran mobil di Politeknik Negeri Padang yakni penyampaian lokasi parkir kosong kepada pengemudi. Sistem ini merupakan sistem otomatis. Sistem dirancang dengan memanfaatkan mikrokontroller.  Algoritma kerja sistem diawali dengan pembacaan hasil kombinasi infrared dan photodioda sebagai sensor lokasi parkir yang kosong akan mengidentifikasi keberadaan mobil. Seluruh proses akan dibaca dan diolah oleh mikrokontroller. Dan  terakhir  hasil  pengolahan  ditampilkan  pada  WEB  sebagai  informasi  yang  diberikan kepada pengemudi dan dapat diakses melalui smartphone dari jarak jauh melalui alamat ee.polinpdg.ac.id/parkir.
Evaluasi Sistem Informasi Akuntansi Pembelian dan Persediaan Bahan Baku pada PT Sumber Bahagia Metalindo Hiererra, Siti Elda; Efrizon, Efrizon; Yun, Yun; Yuliany, Eka
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2394

Abstract

The research objective was to evaluate, learn and analyze whether the company’s business processes in accounting information systems of purchases and inventory of raw materials implemented in the company run as expected; to find out whether the accounting information system of purchasing and inventory of raw materials is well integrated, and to provide recommendations and suggestions to improve the weaknesses in the system for the company’s assets can be well cared for. Several methodologies are implemented in this research, which are literature study, field study, such as: interviews, observation, checklists, and documentation review followed by data analysis. Audit is implemented using audit around the computer. The results obtained are in the form of data analysis presented as problem findings, the impacts and recommendations for remedial action. It can be concluded from the results of this study that PT. Sumber Bahagia Metalindo owns sufficient information system control, but still there are some weaknesses to be improved in order to improve control process to the better objective.
Pengaruh Rasio Keuangan Terhadap Harga Saham Perusahaan Otomotif Periode 2013-2017 Efrizon, Efrizon
Jurnal Akuntansi Aktual VOLUME 6, NOMOR 1, FEBRUARI 2019
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.616 KB) | DOI: 10.17977/um004v5i32019p250

Abstract

Abstract: The study aims to determine: (1) the effect of current ratio on stock price, (2) the effect of ROE on stock price, (3) the effect of debt to equity ratio on stock price, (4) the effect of earning per share on stock price. The Current Ratio, ROE, DER, EPS have a very important role to stock price. This study uses secondary data from annual reports and financial statements on automotive companies listed on Indonesian Stock Exchange period 2013-2017 by using purposive sampling method. There are 10 company samples or 50 observations that meet the criteria of the study sample. Analysis method in this research is panel data regression analysis.  The results of this study indicate that the current ratio, return on equity, debt to equity ratio not significantly affect stock price. EPS can affect stock price significantly. However, the combination of current ratio, return on equity, debt to equity ratio and earning per share affect stock price simultaneously.Abstrak: Tujuan penelitian ini adalah untuk menguji: (1) pengaruh current ratio terhadap harga saham, (2) pengaruh ROE terhadap harga saham, (3) pengaruh DER terhadap harga saham, (4) pengaruh EPS terhadap harga saham. Current ratio, ROE, DER, EPS memiliki peranan yang penting terhadap harga saham. Penelitian ini menggunakan data sekunder dari laporan keuangan tahunan perusahaan otomotif yang terdaftar di Bursa Efek Indonesia periode 2013-2017 dengan menggunakan metode purposive sampling. Terdapat 10 perusahaan yang menjadi sampel penelitian atau 50 observasi yang memenuhi kriteria sampel. Penelitian ini menggunakan metode analisis regresi data panel. Hasil penelitian menunjukkan bahwa current ratio, ROE, DER tidak mempunyai pengaruh yang signifikan terhadap harga paham. Sedangkan secara simultan, current ratio, ROE, DER dan EPS mempunyai pengaruh terhadap harga saham.