Garuda - Garba Rujukan Digital

DESIGN OF THE PROPOSED IMPROVEMENT TO OVOâ€™S ELECTRONIC MONEY PAYMENT SERVICES IN GRAB ONLINE TRANSPORTATION SERVICES Swaraswati, Dinnur; Pujiyanto, Eko; Hisjam, Muhammad
Jurnal Ilmiah Teknik Industri Vol. 19, No. 1, June 2020
Publisher : Muhammadiyah University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v19i1.9035

The advancement of science and technology in the world has brought many influences to the changes in people's behavior and habits, one of that is the technology payment system adopted as an electronic payment system. As an electronic payment instrument, OVO cooperates with one of the online-based transportation services, Grab. However, the success of a company can be seen from the quality of service in meeting the satisfaction of the community or customers. The success of the company in providing quality services can be determined by the Service Quality (Servqual) approach, that is a method used to measure service quality from the attributes of each dimension, so that a gap value will be obtained that is the difference between consumers' perceptions of services that has been received in the hope that will be received. The objective to be achieved is to propose a design in the form of alternative solutions for the priority of improving the quality of electronic money OVO services in Grab applications. Data were collected through a questionnaire using non-probability sampling techniques with a total sample of 140 respondents. The study found the main problems, namely in the dimensions of compensation, responsiveness, and Privacy/Security.

Adopsi-Difusi Teknologi Penyimpanan Energi dan Kendaraan Listrik untuk Media Pembelajaran Akses Energi yang Berkelanjutan Sutopo, Wahyudi; Fahma, Fakhrina; Hisjam, Muhammad; Zakariya, Roni; Rochani, Renny; Yuniaristanto, Yuniaristanto; Priyandari , Yusuf
Wikrama Parahita : Jurnal Pengabdian Masyarakat Vol. 8 No. 2 (2024): November 2024
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jpmwp.v8i2.8375

Pengabdian kepada Masyarakat (PkM) berlokasi di Kabupaten Magetan, Jawa Timur, wilayah yang memiliki potensi Energi Baru Terbarukan (EBT) yang melimpah dan memiliki rencana investasi pada bidang elektrifikasi. Namun, adopsi-difusi teknologi elektrifikasi dan EBT dari masyarakat masih rendah, diantaranya dapat ditunjukan dengan rendahnya pemanfaatan energi surya dan rendahnya elektrifikasi kendaraan listrik. Solusi yang ditawarkan melalui PkM ini adalah mengembangkan simulator adopsi-difusi teknologi penyimpanan energi dan kendaraan listrik untuk media pembelajaran akses energi yang berkelanjutan bagi masyarakat. Metode pelaksanaan PkM dilakukan melalui: merancang media pembelajaran; memasang di taman refugia; menyusun modul dan pelatihan; pendampingan pengelolaan; serta pengukuran tingkat penerimaan. Sistem alat peraga yang dikembangkan terdiri dari: 1. etalase PLTS Atap, 2. Stasiun Penukaran Baterai Kendaraan Listrik Umum (SPKLU), 3. sepeda motor listrik, dan 4. smart farming). Media pembelajaran dapat digunakan untuk learning by doing dan selanjutnya dievaluasi persepsinya terhadap kemudahan akses teknologi energi terbarukan. Pelaksanaan PkM diharapkan menurunkan “chasm” atau jurang hambatan adopsi teknologi dan masyarakat dapat menerima keberadaan inovasi teknologi. Berdasarkan survei sebelum dan sesudah kepada pengunjung, terlihat adanya peningkatan pemahaman akan pentingnya akses energi berkelanjutan yang signifikan dibuktikan dengan uji wilcoxon signed rank dan ditunjukkan kemanfaatannya dari nilai Benefit Cost Ratio (BCR), dimana hasil perhitungan menunjukkan nilai 4,57 sehingga layak diterapkan (BCR > 1,0).

Causal Inference to Predict Delayed Arrival of Ordered Production Materials at PT. XYZ Hanura, Muhammad Ridzky; Priyandari, Yusuf; Hisjam, Muhammad
Jurnal Ilmiah Teknik Industri Vol. 22, No. 2, December 2023
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v22i2.23020

PT XYZ has a problem with the delayed arrival of ordered production materials. Although the company is aware of the delays based on data, the company does not yet know the causes or sources of problems that cause delays. On the other hand, not all factors can be controlled to reduce the delay in the arrival of production materials. The company intends to predict the change in delay time if control or intervention is carried out on certain factors by utilising data availability. The factor to be treated is requisition-to-order lead time A causal inference model is used using the Dowhy library (a Python library for causal inference by graphing the model, quantitatively evaluating causal effects, and validating the causal assumptions) to estimate the quantitative causal effect between requisition-to-order lead time and the arrival time of the ordered material by considering other factors that also affect the delay. The results of the causal effect estimation are that by intervening or controlling the requisition-to-order lead time factor by one day, there is a decrease in the average delay in material arrival time by one day

Business conceptual design of photovoltaic installation for billboard lighting Chrissandhi, Erico Sofyan; Pratiwi, Christa Dian; Hastuti, Tiwik Tri; Hisjam, Muhammad; Sutopo, Wahyudi
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 2, (2023): OE July 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i2.077

The usage of advertising as a medium for marketing products/services is used by various businesses to increase profits. The advertising medium mainly used is billboards, which still use fossil energy as an energy source. The Indonesian government's 2060 Net Zero Emission Program promotes using renewable energy (RE) as an energy source, such as photovoltaic (PV) as electrical energy from solar heat. As with RE, the development of PV still has problems in products and business, but PV is ready to be used as an energy source to reduce electricity bill costs. The business idea of PV installation in the advertising company sector emerged to support the government program Net Zero Emission, making advertising companies "green jobs" and absorbing human resources from vocational schools. Business conceptual design with value chains, business model canvas, and lean canvas expected can provide an overview of business opportunities with EBT for Indonesia that are environmentally friendly and energy independent.

Purchase Intention of Electric Vehicles: A Systematic Literature Review Junaedi, Didi; Pujiyanto, Eko; Hisjam, Muhammad; Damayanti, Retno Wulan
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2024: Proceeding ISETH (International Summit on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.5415

This research aims to a systematic review and bibliometric analysis in electric vehicles topic. The analysis involved 325 articles published in the Scopus database from 1994 to 2023. The analysis examines the results of the study by observing trends in journals, authorship, and keywords. The results were visualized using VOSviewer to show graphical network keywords and using a spreadsheet application. The results show that this research area has expanded over a period of five years, namely 2019-2023. The leading journal in this field between 2019 and 2023, is Sustainability (Switzerland) followed by Energy Policy and Journal Research in Transportation Business and Management. Content analysis consists of the country where the research is conducted, the research subjects, the theoretical approach used, and the method. Based on the country where the study is China, followed by India, Malaysia, Thailand, and Indonesia. The subject of research on electric cars dominates when compared to other electric vehicles. The methods used are quite diverse in developing the model, so that studies on electric vehicles can still be developed in the future.

Tinjauan sistematis tentang faktor-faktor yang mempengaruhi perilaku pemilahan sampah rumah tangga Apriani, Yunda; Liquiddanu, Eko; Hisjam, Muhammad
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 9, No 2 (2025)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.9.2.178-197

Rapid population growth has resulted in increased waste production, with projections that global waste will reach 3.4 billion tons by 2050, posing serious environmental challenges. Waste separation and recycling are essential strategies to address this issue, but community participation in waste segregation practices is still lacking. This study aims to identify and analyze the factors influencing household waste separation behavior through a systematic review conducted in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. A comprehensive literature search was conducted utilizing the Scopus database, yielding 19 relevant articles and two additional articles identified through a manual search on Google Scholar. The analysis revealed that most studies applied the Theory of Planned Behavior (TPB) to analyze the factors influencing waste separation intentions and actions. Commonly applied variables in research include attitudes, norms, awareness, knowledge, perceived behavioral control, law and regulation, and situational factors. The findings are expected to provide insights for researchers and support creating more effective policies to increase community involvement in sustainable waste management.

MODEL ALOKASI SUBSIDI DANA APBD DAN CSR UNTUK OPTIMASI PENGADAAN MESIN KOMODITAS LELANG: STUDY KASUS Zainida, Maya Revanola; Sutopo, Wahyudi; Hisjam, Muhammad
Jurnal Ilmiah Teknik Industri Vol. 11 No. 3 (2023): Jurnal Ilmiah Teknik Industri : Jurnal Keilmuan Teknik dan Manajemen Industri
Publisher : Program Studi Teknik Industri, Fakultas Teknik Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jitiuntar.v11i3.26324

Procurement of machinery is a facilitation to overcome auction problems in accordance with the strategic plan of the Dinas TPHPKP to maintain and improve the quality or quality of commodities so as to increase the selling value. To carry out this facilitation with limited funds, other sources of subsidized funds are needed, the government needs tools to determine the nominal funding decision, the decision to place the machine, and the feasibility study of the model. Based on surveys, interviews, and previous research, the research data was processed using goal programming with Excel and ILOG CPLEX. This study chooses scenario three as the optimal scenario because the nominal subsidy of funds is smaller than scenarios one and two, but results in machine option decisions on each quality improvement function with a positive benefit deviation value of Rp. 20,014,000. This study succeeded in formulating a fund allocation model, determining five locations for placing machines and stating the feasibility of a fund allocation model with a Benefit Cost Ratio value of 1.49. Future research is expected to be able to consider the cost of energy consumption in the next use of the machine, consider the form of village assets as a candidate for placing the machine, and calculate other feasibility study parameters.

Causal Inference to Predict Delayed Arrival of Ordered Production Materials at PT. XYZ Hanura, Muhammad Ridzky; Priyandari, Yusuf; Hisjam, Muhammad
Jurnal Ilmiah Teknik Industri Vol. 22, No. 2, December 2023
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v22i2.23020

PT XYZ has a problem with the delayed arrival of ordered production materials. Although the company is aware of the delays based on data, the company does not yet know the causes or sources of problems that cause delays. On the other hand, not all factors can be controlled to reduce the delay in the arrival of production materials. The company intends to predict the change in delay time if control or intervention is carried out on certain factors by utilising data availability. The factor to be treated is requisition-to-order lead time A causal inference model is used using the Dowhy library (a Python library for causal inference by graphing the model, quantitatively evaluating causal effects, and validating the causal assumptions) to estimate the quantitative causal effect between requisition-to-order lead time and the arrival time of the ordered material by considering other factors that also affect the delay. The results of the causal effect estimation are that by intervening or controlling the requisition-to-order lead time factor by one day, there is a decrease in the average delay in material arrival time by one day

Increasing Production Capacity and Financial Strengthening of Hand-Printed Batik Motif Textile Business at Kenayyu SME in Sragen Regency Murni, Sri; Kurniadi, Edi; Hisjam, Muhammad; Rahmawati, Rahmawati; Rudianto, M
IMPOWERMENT SOCIETY Vol 8 No 2 (2025): Agustus 2025
Publisher : Institut Teknologi dan Bisnis Widya Gama Lumajang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30741/eps.v8i2.1705

This community service program aims to address the problems faced by Kenayyu Small and Medium Enterprises (SMEs) in Sragen Regency, particularly in the areas of financial management, accounting practices, design innovation, production capacity, and marketing. The urgency of this activity arises from the limited availability of production equipment, unstructured financial recording systems, and lack of marketing strategies, which hinder the competitiveness and sustainability of hand-printed batik businesses. To overcome these issues, the program was implemented through five main stages: (a) socialization, (b) training, (c) technology application, (d) mentoring and evaluation, and (e) program sustainability. The socialization stage built awareness and commitment among partners, while the training improved skills in financial recording, accounting applications, and batik motif design. The application of technology was carried out through the use of dynamo-powered equipment to enhance production efficiency. Mentoring and evaluation ensured continuous improvement and problem-solving, and the sustainability stage encouraged partners to maintain progress after the program ended. These activities have produced significant outcomes, including increased financial literacy, better product design innovation, improved production efficiency, and expanded digital marketing through marketplaces, leading to higher competitiveness and turnover for partner SMEs.

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