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All Journal Jurnal IPTEK Jurnal Terapan Abdimas Journal of Research and Technology Buletin Ilmiah Sarjana Teknik Elektro Insyst : Journal of Intelligent System and Computation Jurnal Pengbdian Teknik Mesin Jurnal Karya Abdi Masyarakat Nusantara Community Empowerment Review Journal of Science and Social Development Nusantara Technology and Engineering Review
Agus Rachmad Purnama
Universitas Nahdlatul Ulama Sidoarjo
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Sebaran Timbal pada Tanah di Areal Persawahan Kabupaten Sidoarjo Fitrianah, Listin; Agus Rachmad Purnama
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.307

Abstract

The existence of this industry in Sidoarjo has the negative potential impact to the environment, namely the accumulation of heavy metals in paddy fields. The magnitude of the impact that can be caused by the presence of lead heavy metals, research is needed that is expected to provide information related to the concentration and distribution of lead on land in Sidoarjo district. The distribution will later be elaborated by mapping using Geographic Information Systems. The purpose of this research is to identify the potential distribution of lead heavy metals in soil and soil in Sidoarjo paddy fields and the potential impact of lead accumulation on the environment. Samples taken were soil in the paddy fields, with 18 location points. The method used in the identification of lead distribution in paddy fields in Sidoarjo district is survey and laboratory testing, where the pattern of lead content distribution in paddy fields is carried out using spatial analysis with the spline with barrier method Arcgis 10.1. The highest distribution of lead content in paddy fields in Wonoayu District, 0.46 ppm. The highest dominant distribution pattern of lead pollution in paddy fields is Wonoayu and Waru sub-districts.  
PERAN E-COMMERCE DALAM MENGEMBANGKAN USAHA SANDAL SPON DI DESA KARANGREJO KECAMATAN GEMPOL KABUPATEN PASURUAN Azizah, Zahrotul; Fitrianah, Listin; Purnama, Agus Rachmad
Jurnal Terapan Abdimas Vol 7, No 2 (2022)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jta.v7i2.12579

Abstract

Abstract. Electronic Commerce (E-Commerce) is a marketing system using electronic media. E-commerce is an alternative choice for buyers during the pandemic because apart from being easy to use, buyers and sellers do not need to make direct contact. Aldiva Sponge Slippers UMKM located in Karangrejo Village, Gempol District, Pasuruan Regency is one of the UMKM that has not used E-Commerce. Partners have limitations in the marketing sector, namely they still do not have Human Resources (HR) in charge of marketing. Partners also do not have specific marketing media, especially online media, so sales are not maximized. The implementation of the service aims to overcome the problems faced by partners in details, namely the team developing e-commerce websites for partners, holding training on the operation of e-commerce websites, filling out e-commerce website content, and continuing with assistance. The implementation method used during the training was that the team invited all employees of the Aldiva Sponge Sandal SMEs and local village officials to take part in the training delivered by competent speakers in the field of digital marketing. The result of the activity is that the training participants benefit from the training held and are motivated to explore e-commerce. Partners already have new media for sales so that turnover increases. Abstrak. Electronic Commerce (E-Commerce) adalah sistem pemasaran menggunakan media elekronik. E-commerce menjadi alternatif pilihan pembeli di masa pandemi karena selain penggunaannya yang mudah, pembeli dan penjual tidak perlu melakukan kontak langsung. UMKM sandal spon Aldiva yang berlokasi di Desa Karangrejo Kecamatan Gempol Kabupaten Pasuruan merupakan salah satu UMKM yang belum menggunakan E-Commerce. Mitra memiliki keterbatasan pada sektor pemasaran yaitu masih belum memiliki Sumber Daya Manusia (SDM) yang bertugas di bidang pemasaran. Mitra juga belum memiliki media pemasaran yang spesifik khususnya media online sehingga penjualan belum maksimal. Pelaksanaan pengabdian bertujuan untuk mengatasi masalah yang dihadapi mitra dengan rincian yaitu tim membuatkan website e-commerce untuk mitra, mengadakan pelatihan tentang pengoperasian website e-commerce, melakukan pengisian konten website e-commerce, dan dilanjutkan dengan pendampingan. Metode pelaksanaan yang digunakan selama pelatihan adalah tim mengundang seluruh karyawan UMKM sandal Spon Aldiva dan perangkat desa setempat untuk mengikuti pelatihan yang disampaikan oleh pemateri yang kompeten dibidang pemasaran digital. Hasil dari kegiatan yaitu peserta pelatihan memperoleh manfaat dari pelatihan yang diadakan dan termotivasi mendalami e-commerce. Mitra sudah mempunyai media baru untuk penjualan sehingga omset meningkat.
Empowering Coastal Communities through Oyster Shell Waste Management and Circular Economy Practices in Gisik Cemandi Tamyiz, Muchammad; Purnama, Agus Rachmad; Reza Prasetyo, Faris
Jurnal Karya Abdi Masyarakat Vol. 8 No. 2 (2024): Jurnal Karya Abdi Masyarakat
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jkam.v8i2.36931

Abstract

Managing oyster shell waste in coastal regions remains a significant issue, requiring solutions that add economic value while ensuring environmental sustainability. This community service program supported residents of Gisik Cemandi Village in converting oyster shell waste into livestock feed, aligning with circular economy principles. Activities included observations, interviews, educational sessions, discussions, training, and practical application. The initiative showed promising results: 90% of participants recognized the benefits of waste processing, and 70% showed enthusiasm for future training. It effectively increased community knowledge and skills in producing livestock feed from shell waste. From a scientific perspective, it highlights the application of circular economy and social innovation using local resources. Socially, it empowered the community—particularly women in the shellfish sector—and promoted local food security. Challenges such as limited processing tools will be addressed through proposed equipment support, the formation of small cooperatives, and ongoing community-based training. These efforts aim to ensure long-term sustainability and establish Gisik Cemandi as a model for community-driven waste management that aligns with sustainable development goals.
Comparative Analysis of Large Red Chili Price Forecasting Models in Malang Regency Using Long Short-Term Memory (LSTM) and Autoregressive Integrated Moving Average (ARIMA) Indrawan, Yogi Fradika; Larasati, Aisyah; Purnama, Agus Rachmad; Sholikha, Nikmatus
Intelligent System and Computation Vol 7 No 1 (2025): INSYST: Journal of Intelligent System and Computation
Publisher : Institut Sains dan Teknologi Terpadu Surabaya (d/h Sekolah Tinggi Teknik Surabaya)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52985/insyst.v7i1.419

Abstract

Large red chili is a strategic food commodity with high demand, yet its price often fluctuates due to factors such as weather, harvest seasons, and market dynamics. In Malang Regency, these fluctuations impact inflation and economic stability, necessitating an accurate forecasting model to support decision-making. This study aims to develop a price forecasting model using Long Short-Term Memory (LSTM) and Autoregressive Integrated Moving Average (ARIMA) methods and compare their performance using daily time series data on large red chili prices from January 2022 to August 2024, obtained from the Representative Office of Bank Indonesia in Malang. The data underwent preprocessing, where LSTM data was transformed using MinMaxScaler, while ARIMA data was differenced to meet stationarity assumptions, then split into 80% training and 20% testing data, with optimal parameters obtained through Grid Search for both models. The results show that the LSTM model with three layers (150, 150, 150 units) and a dropout of 0.2 achieved an RMSE of 2.326 and MAPE of 3.65%, whereas the best ARIMA configuration (4,1,3) achieved an RMSE of 2.455 and MAPE of 3.80%. Although both models performed competitively and yielded promising results, LSTM demonstrated superior accuracy in forecasting large red chili prices in dynamic market conditions.
Spatial Distribution of Chromium Metal in Water and Sediment in the Berbek Industrial Area, Sidoarjo Regency Fitrianah, Listin; Purnama, Agus Rachmad
Jurnal IPTEK Vol 26, No 1 (2022)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2022.v26i1.2966

Abstract

Berbek Industrial Estate is the largest industrial area in Sidoarjo Regency. The most dominant concentration of heavy metals in industrial areas is chromium in water and sediments in rivers which have the potential to have a negative impact on humans, this is because rivers are a place for developing aquatic organisms including fish that are consumed by local residents. Parameters include chromium content in river water and sediment. Spatial distribution analysis uses the kriging method on laboratory results and overlay to describe the distribution map. The result of the highest content in water parameters is the location of Gedongan Village at 0.31 ppm. Based on Peraturan Pemerntah Republik Indonesia Nomor 82 Tahun 2001 on Water Management and Pollution Control, states that the environmental quality standard for chromium in class III rivers is 0.05 mg/L. The highest content in sediment is the Berbek location at 3.24 ppm.
Co-Authors Aisyah Larasati Akhmad Danang Nur Hidayat Alvin Ihyaul Nurman Andi Maulana Prabawa Assayyidatina Fatimah Diana Islamiyah Effendi Mohamad Fitri Nur Fadhilah Indrawan, Yogi Fradika Lily Oktavia Listin Fitrianah Machfudzil Asror Maulfi Ihza Mahrizal Zuhri Muchammad Tamyiz Nikmatus Sholikha, Nikmatus Ovelia Ikhsandra Nurcahya Putri Reza Prasetyo, Faris Taqwanur Yohana Ruth Wulan Natalia Susanto Zahrotul Azizah