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All Journal Jurnal Ilmiah Kesatuan (JIK) Jurnal Rekayasa Mesin Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Ilmiah Manajemen Kesatuan Jurnal Ilmiah Akuntansi Kesatuan Applied Research and Smart Technology (ARSTech) International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Journal of Community Development Jurnal Abdimas Dedikasi Kesatuan Jurnal Aplikasi Bisnis Kesatuan AJAD : Jurnal Pengabdian kepada Masyarakat Mechanical Engineering for Society and Industry Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Prosiding University Research Colloquium Jurnal Informatika Kesatuan Bulletin of Chemical Reaction Engineering & Catalysis
Marwan Effendy
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Meningkatkan Kompetensi Wirausaha Siswa SMK melalui Pelatihan BMC Sholahuddin, Muhammad; Ngafwan; Effendy, Marwan; Wajdi, Muhammad Farid; Surono, Arif
AJAD : Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 3 (2023): DECEMBER 2023
Publisher : Divisi Riset, Lembaga Mitra Solusi Teknologi Informasi (L-MSTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59431/ajad.v3i3.234

Abstract

students for the dynamic global world. Research shows a positive relationship between entrepreneurship education, entrepreneurial activities, and entrepreneurial intentions of vocational students. The integration of entrepreneurship education in the vocational education system supports the national agenda to encourage innovative and entrepreneurial practices among youth. In this context, the development of entrepreneurial skills among SMK students is essential, including communication, collaboration, and digital skills. The 2019 National Standard for Vocational Education emphasizes the importance of entrepreneurship, character, and literacy competencies.   Business Model Canvas (BMC) training is a solution to help SMK students understand and plan their business comprehensively, improve their readiness to create jobs and overcome obstacles in starting a business. The study involved 30 students of SMKN 1 Gantiwarno, Klaten, and was organized at Universitas Muhammadiyah Surakarta using lecture, demonstration, and discussion methods. The result was an increase in students' knowledge, skills, and abilities in planning a business with BMC.   This activity successfully benefited the Perempuan Indonesia Maju community and the vocational school students. It is desired that students can apply the knowledge gained and it is recommended to organize follow-up training to deepen the material and understanding. Continuous evaluation will ensure the long-term impact of this community service.
ANALYSIS OF OIL CHARACTERISTICS FROM PYROLYSIS OF LOW DENSITY POLYETHYLENE (LDPE) PLASTIC WASTE IN A SMALL CAPACITY REACTOR Purnama, Ari; Effendy, Marwan; Ngafwan, Ngafwan
International Journal of Mechanical Engineering Technologies and Applications Vol. 5 No. 2 (2024)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2024.005.02.10

Abstract

Plastic waste in Indonesia remains a significant unresolved issue, particularly due to the extensive use of plastic bags in the food sector, industry, and other areas, which adversely affects the environment. Addressing this, one effective approach is converting plastic waste into fuel oil through the pyrolysis process. The process involves preparing pyrolysis equipment and extracting oil by conducting laboratory tests on the properties of pyrolysis oil, including Gas Chromatography-Mass Spectrometry (GCMS), Fourier Transform Infrared (FTIR) spectroscopy, and droplet combustion tests. Pyrolysis is performed by heating plastic waste at temperatures ranging from 250°C to 400°C. This study focuses on pyrolysis oil derived from Low-Density Polyethylene (LDPE) plastic, which can be used as an alternative fuel. The results show that pyrolysis oil can be ignited with sparks at a heating temperature of 300°C, exhibiting a viscosity of 1.1378 cP and a calorific value of 10,965.2 cal/g.
Pengaruh Kualitas E-Banking Dan Kualitas Layanan Terhadap Kepuasan Nasabah: Studi Kasus Pada PT. Bank Mandiri, Tbk. Bogor Ruslanie, Ardhieva Wiraldhy; Hassan, Filani Zikri; Effendy, Marwan
Jurnal Informatika Kesatuan Vol. 2 No. 1 (2022): JIKES Edisi Maret 2022
Publisher : LPPM IBI Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jikes.v2i1.1382

Abstract

To determine the effect of e-banking and service quality on satisfaction at PT. Bank Mandiri Bogor City Branch. The analytical method used in this study is multiple linear regression with customer loyalty being the dependent variable and two independent variables, namely e-banking and service quality. Results Processing data obtained by the LN = Y model: 0.166 + 0.453X1 + 0.527X2 In the regression coefficient, KP produces every e-banking increase of 0.453, one unit is predicted, will get a profit, amounting to 0.166 units and can also be changed. The coefficient of determination (R1) is 0.888, this shows e-banking variables and service quality contribute or contribute as much as 88% to the variable satisfaction satisfaction at PT. Bank Mandiri Bogor City Branch. Partially, the test results showed each e-banking variable and service quality were significant to investment loyalty at PT. Bank Mandiri Bogor City Branch so the hypothesis is accepted. Simultaneously, the results of the F test indicate that together e-banking variables and related service quality are significant to investment loyalty at PT. Bank Mandiri Bogor City Branch so the hypothesis is accepted. Keywords: E-Banking, Service Quality, Customer Loyalty
Tinjauan Atas Penggunaan Sistem Komputerisasi Akuntansi Di Pt. Andalan Fluid System Aspriantimi, Nahdia; Suharmiati, Suharmiati; Effendy, Marwan
Jurnal Informatika Kesatuan Vol. 3 No. 1 (2023): JIKES Edisi Maret 2023
Publisher : LPPM IBI Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jikes.v3i1.1477

Abstract

Computerized accounting system is an accounting system where the computer as information technology is useful to run applications used in processing accounting transactions and at the same time to generate financial statements in a company. With the computerized system in the company's operational activities, especially in the recording of financial statements can facilitate and help the computer user complete his activity report effectively and efficiently. The purpose of this discussion is to find out how to use computerized accounting system in PT. Mainstay Fluid system as well as in running using the system whether there are perceived obstacles, especially in the financial part.The results of the discussion showed that the computerized accounting system used by PT. Fluid System's mainstay is to use microsoft office excel in helping to make the company's financial statements. Keywords : Computerized Accounting System, Microsoft Office Excel.
Analisis Dan Perancangan Sistem Informasi Sharing File Berbasis Web Sebagai Pendukung Proses Kerja Pada Pada CV. Conslink Teknikindo Pratiwi, Bintang; Effendy, Marwan; Khim, Soei
Jurnal Informatika Kesatuan Vol. 3 No. 2 (2023): JIKES Edisi September 2023
Publisher : LPPM IBI Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jikes.v3i2.1826

Abstract

Information Systems file sharing is an important aspect of organizational workflow. CV. Conslink Teknikindo, a company engaged in environmental consulting services. This study aims to design and build a web-based file sharing information system that can help CV. Conslink Teknikindo to improve the process of sharing files and managing documents within the organization. The method used in this study is system requirements analysis, system design, and web-based application development. Analysis of system requirements involves identifying the needs and requirements needed in managing file sharing. Based on the results of the needs analysis, a system design was carried out which included database design, user interface, and system workflow. After that, web-based application development was carried out using the Agile method. It is hoped that this designed and built file sharing information system will provide significant benefits for CV. Conslink Teknikindo in improving efficiency, accuracy and control over the management of their file sharing. In addition, this system can also be a reference for other companies that have similar needs in managing petty cash funds.
Pemanfaatan Digital Marketing UMKM Berbasis Kearifan Lokal Batik Bogor Melalui Media Sosial Cahyani, Nani; Effendy, Marwan; Noor, TB. Dicky Faldy Syahid
Jurnal Abdimas Dedikasi Kesatuan Vol. 3 No. 2 (2022): JADKES Edisi Juli 2022
Publisher : LPPM Institut Bisnis dan Informatika Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jadkes.v3i2.1644

Abstract

Program pengembangan UMKM yang diuusulkan dengan mengusung tema pemanfaatan digital marketing UMKM berbasis kearifal lokal batik Bogor melalui media sosial untuk para pelaku usaha dan pengrajin batik yang berada di Kampung Batik Cibuluh memiliki potensi yang luar biasa tinggi dan dapat dikembangkan menjadi suatu produk kerajinan berbasis kearifal local Bogor dan destinasi wisata kota Bogor. Program ini diusulkan berdasarkan adanya permasalahan para pelaku usaha batik yang tergabung dalam komunitas kampung batik Bogor mempunyai pengetahuan dan skills yang kurang memadai terhadap digital marketing sebagai sarana dalam memasarkan produk mereka, sehingga sulit untuk meningkatkan omzet penjualannya. Sementara digital marketing saat ini bisa dikatakan sebagai sarana yang paling utama dalam proses mempromosikan produk. Tujuan dari program kegiatan PKM ini adalah untuk memberikan solusi terhadap permasalahan turunnya omzet di kalangan pelaku usaha batik, melalui pelatihan pemanfaatan digital marketing maka diharapkan para pelaku usaha mampu untuk meningkatkan pemahaman dan ketrampilannya dalam memasarkan produk dan meningkatkan omzet penjualan secara efektif dan efisien, disamping itu kegiatan ini mampu menghasilkan luaran PKM yang dapat digunakan dalam meningkatkan kompetensi dosen dan mahasiswa dalam proses belajar mengajar serta berkontribusi secara langsung dalam pembangunan masyarakat Kota Bogor.
Synthesis and Characterisation of Graphene Oxide Catalysts for Glycerol Acetylation Hidayati, Nur; Khoiruddin, Wahib; Purnama, Herry; Effendy, Marwan
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 2 Year 2024 (August 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20146

Abstract

Glycerol in large quantities as a by-product of biodiesel production is a promising feedstock to be converted into more valuable products such as acetin. In this work, acetin converted from glycerol acetylation with acetic acid was performed over graphene oxide as a catalyst in a batch reactor. The study's objective was to evaluate the effect of sodium nitrate amount in the catalyst preparation on the catalyst's characteristics and catalytic performance. The graphene oxide (GO) catalysts were charac­terised by various tests, such as SEM-EDX for their morphology, the nitrogen adsorption capacity using Breneur-Emmet Teller (BET), structural analysis using XRD, functional group us­­ing FTIR, and catalytic activity on glycerol acetylation. The GO1, GO2, and GO3 catalysts were varied based on the NaNO3 amount in the modified Hummer method. The experiments found that the NaNO3 amount in catalyst preparation plays a vital role in GO structure formation. The GO2 catalyst has the highest performance, as indicated by the highest surface area, pore volume, and size. High glycerol conversion (94 %) and selectivity toward the interest products of triacetin (24 %) and diacetin + triacetin (83 %) were reached in 2 h of reaction using three wt.% catalysts, 110 °C reaction temperature, and 1:9 molar ratio of glycerol to acetic acid. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Analisis Pengaruh Dana Pihak Ketiga Dan Tingkat Suku Bunga Kredit Terhadap Profitabilitas Bank BUMN Tofan, Muhamad; Munawar, Aang; Supriadi, Yoyon; Effendy, Marwan
Jurnal Ilmiah Manajemen Kesatuan Vol. 10 No. 1 (2022): JIMKES Edisi April 2022
Publisher : LPPM Institut Bisnis dan Informatika Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jimkes.v10i1.1280

Abstract

This study aims to see the effect of third parties and credit interest rates on profitability at state-owned banks. The analytical method used in this research is multiple linear regression with ROA profitability being the dependent variable and two independent variables, namely Third Party Funds and Credit Interest Rates. The results of data processing have obtained a regression model = Y: 0.934 + 2.369X1 + -0.089X2. The regression coefficient shows that if each increase in third party funds is 2.369 one unit, it is predicted that it will increase profitability by 0.934 units and vice versa. The coefficient of determination (R1) is 0.299, this shows that the variable Third Party Funds and the Credit Interest Rate contribute or influence 29% on the profitability variable ROA at BUMN Banks. Partially, the test results show that each variable of third party funds has a positive and significant effect on ROA so that it is accepted and credit interest rates have a negative and insignificant effect on ROA. Simultaneously, the results of the F test show that together the variables of Third Party Funds and Interest Rates have a significant effect on ROA so that they are accepted. Keywords: Third Party Funds, Profitability Ratios, ROA, Credit Interest Rates
Combustion characteristics of pyrolysis oil droplets from pyrolysis of polyethylene (PE) plastic waste Aji, Dody Bimo; Effendy, Marwan; Ngafwan, Ngafwan
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12763

Abstract

Plastic waste is suspected to be a major contributor to environmental pollution, thus encouraging the need for innovative and effective management strategies to overcome it. Pyrolysis is considered an affordable way to process plastic waste, and even produce useful products in liquid form, which has the potential to be an alternative fuel in combustion engines. This study evaluated the combustion characteristics of pyrolysis oil derived from polyethylene (PE) plastic waste. The pyrolysis process was carried out under controlled conditions, at a furnace temperature of 250°C, a reactor temperature of 400°C, and a condenser temperature of 300°C, processing 1 kg of PE plastic waste. Temperature data was monitored every 10 minutes by installing several thermocouples. The pyrolysis process was able to produce 671 ml of liquid, which was later identified as plastic pyrolysis oil (PPO PE-11) and the rest in the form of residue reached 45 g. The results indicated that PPO PE-11 has a viscosity of 5.93 mm²/s, which is higher than diesel 3.8173 mm²/s. Meanwhile, its density is 0.779 kg/m³, which is slightly lower than diesel. The calorific value of PPO PE-11 is slightly higher than diesel, reaching 11,046.4 cal/g. The droplet scale combustion tests give a shorter ignition delay of 0.6 seconds at 41.28°C for PPO PE-11, compared to 1 second at 52.525°C for diesel, indicating its flammability.
Analisa Pengaruh Variasi Temperatur Udara Bebas di Luar Ruangan terhadap Kondisi Udara di Dalam Ruangan pada Penggunaan 2 Unit AC Type Split dengan Menggunakan Metode Computational Fluid Dynamic (CFD) Utomo, Tri Pramito; Effendy, Marwan
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2024: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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

Abstract

Penelitian ini menggambarkan prediksi data mengenai sistem pengkondisian udara dalam ruangan.Tujuan dari penelitian ini untuk mengetahui pengaruh perubahan temperatur lingkungan terhadap kondisi temperatur udara di dalam ruangan pendingin. Dalam penelitian ini, penggunaan 2 unit AC tipe split dalam ruangan berukuran 10,45m x 8,10m x 3,93m dengan posisi AC terletak di sisi atas dinding ruangan sebelah selatan menghadap ke utara dijadikan sebagai objek simulasi. Dengan model turbulensi kepsilon ada dua tahapan yang dilakukan dalam penelitian ini. Tahap pertama merupakan langkah validasi mesh dengan cara melakukan simulasi menggunakan tiga macam tipe mesh secara tersruktur dari mesh A dengan 149.328 elemen, mesh B dengan 461.322 elemen dan mesh C dengan 971.209 elemen. Tahap kedua, mengadopsi mesh yang mampu menghasilkan prediksi data terdekat pada tahap validasi dengan cara membandingkan data pengukuran. Simulasi tingkat lanjut dilakukan dengan memvariasikan temperatur lingkungan luar pada 20,6; 28,5 dan 39,5˚C. Hasil penelitian menunjukkan bahwa validasi mesh dapat diterima dengan menggunakan tipe mesh C dalam jumlah elemen mencapai 971.209 dengan tingkat kesalahan sebesar 3,72%. Seiring dengan meningkatnya temperatur lingkungan maka semakin meningkat pula temperatur tiap titik koordinat pendinginan udara dalam ruangan.
Co-Authors A, Maritza Aang Munawar Abdul Roup, Abdul Aji, Dody Bimo Aspriantimi, Nahdia Balikowa, Amuza Bintang Pratiwi, Bintang Gunawan, Ilham Bintang Gusman, Salsa Nabila Hari Boedi Wahjono Hassan, Filani Zikri Hendra Setiawan Herry Purnama, Herry Jamaldi, Agus Jan Horas V Purba, Jan Horas V Karnawiredja, R. Aditya M. Khim, Soei Khoiruddin, Wahib Kirana, Resti Lestari, Febriana Indah Lukman Hidayat Lutfiah, El Syifa M. Sholahuddin Mumuh Mulyana Nani Cahyani Ngafwan Ngafwan Ngafwan Nisa Utami, Nisa Noor, TB. Dicky Faldy Syahid Nugroho, Bagus Nur Hidayati Nyuantasari, Nyuantasari Pamungkas, Arie Dwi Purnama, Ari Putra, Rafli Rianzah Rahmadi, Muhammad Rayi A., Maritza Roestiono, Harry Rozaq, Fadli Ruslanie, Ardhieva Wiraldhy Saputra, Eqwar Suharmiati Suharmiati Surono, Arif Tarida Marlin Surya Tofan, Muhamad Triandi Triandi Utomo, Tri Pramito V, Zidan Wajdi, Muhammad Farid Wandera, Catherine Wirawan, Willy Artha Yayuk Nurjanah Yoyon Supriadi Yuwantiningrum, Sri Yuwantiningrum, Sri Endah Zulfan V., Zidan