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All Journal Jurnal Simetris Seminar Nasional Informatika (SEMNASIF) BAREKENG: Jurnal Ilmu Matematika dan Terapan JTAM (Jurnal Teori dan Aplikasi Matematika) Jambura Journal of Mathematics Jurnal Abdi Insani Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika NUCLEUS: Jurnal Sains dan Teknologi Jurnal Pengabdian kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat Duta.com : Jurnal Ilmiah Teknologi Informasi dan Komunikasi Journal of Community Service Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Widya Didaktika: Jurnal Ilmiah Kependidikan Prosiding Seminar Nasional Unimus Proceeding International Conference on Mathematics and Learning Research International Journal of Computing Science and Applied Mathematics-IJCSAM
Nughthoh Arfawi Kurdhi, Nughthoh Arfawi
Department Of Mathematics, Faculty Of Mathematic And Natural Science, University Of Sebelas Maret, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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PEMBERDAYAAN UMKM BERBASIS KAYU DI DESA PANDEYAN, KABUPATEN BOYOLALI: INDUKSI TEKNOLOGI DAN OPTIMALISASI LIMBAH KAYU UNTUK PRODUK KREATIF DAN BRIKET Nughthoh Arfawi Kurdhi; Dewi Retno Sari Saputro; Purnami Widyaningsih; Sutanto, Sutanto; Ririn Setiyowati; Ade Susanti; Dwi Purnama; Nugroho Arif Sudibyo
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 4: September 2025
Publisher : Bajang Institute

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Abstract

Program pengabdian masyarakat ini bertujuan memberdayakan UMKM berbasis kayu di Desa Pandeyan, Kabupaten Boyolali, melalui induksi teknologi dan optimalisasi pemanfaatan limbah kayu menjadi produk kreatif dan briket ramah lingkungan. Desa Pandeyan memiliki potensi kayu yang melimpah, namun selama ini limbah kayu belum termanfaatkan secara optimal sehingga menimbulkan masalah lingkungan dan hilangnya nilai tambah ekonomi. Kegiatan dilaksanakan melalui pelatihan teknologi induksi, workshop pengolahan limbah kayu, pembuatan briket, pendampingan produk kreatif, serta dukungan hibah laptop, kamera, dan domain hosting untuk digital marketing. Hasil kegiatan menunjukkan peningkatan keterampilan UMKM dalam mengolah limbah kayu menjadi produk bernilai tinggi, sekaligus memperluas akses pasar melalui platform digital Martha Meubel. Program ini berdampak positif secara teknis, ekonomi, sosial, dan lingkungan, serta berpotensi menjadi model replikasi bagi pengembangan ekonomi kreatif berkelanjutan.
Algorithm for Constructing Total Graph of Commutative Ring Meinawati, Rima; Kurniawan, Vika Yugi; Kurdhi, Nughthoh Arfawi
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 8, No 2 (2024): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v8i2.19850

Abstract

Let R be a commutative ring. The total graph of R, denoted by TΓ(R) is a graph whose vertices are all elements of the ring R and every i,j∈R with i≠j, then i and j vertices are connected by edges if and only if i+j∈Z(R), where Z(R) is the set of zero-divisors in R with 0∈Z(R). Python programming is code that is easy to learn, read, understand, and helpful in explaining problems regarding graphs and algebra. In this paper, we determine an algorithm to construct the total graph of ring Z_n using Python. The research methods in this paper is a literature studies. The results generated by the algorithm can be utilized to observe the characteristic patterns displayed by the graph. Based on the algorithm’s constructed graph pattern, several properties of TΓ(Z_n ) can be inferred. For instance, if n is a prime number, then TΓ(Z_n ) is a disconnected graph. On the other hand, if n is a prime number and n≥3, then TΓ(Z_2n ) and TΓ(Z_4n ) is a connected graph, regular graph, Hamiltonian graph, and has a girth gr(TΓ(〖Z〗_n ))=3. In this paper we creating an algorithm to construct total graphs from commutative rings streamlines the construction process, enhances accessibility and utilization of total graphs, and supports parameter variation exploration and application in problem-solving. 
In-House Refurbishing and Outsourcing Refurbishing Models with Degree of Interchangeability in Product Design Kurdhi, Nughthoh Arfawi; Vania, Kezia Abigail; Widyaningsih, Purnami; Sudibyo, Nugroho Arif
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 7, No 4 (2023): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v7i4.15787

Abstract

Refurbishing is the process of processing used products into products with the quality of new products. Refurbishing can be done by the manufacturer itself (in-house) or the manufacturer can delegate the refurbishing process to other manufacturers (outsourcing). This research aims to construct an in-house refurbishing model and an outsourced refurbishing model, determine the optimum solution, analysis, and application so that optimum benefits are obtained, and compare the in-house refurbishing model and the outsourced refurbishing model. Multivariable function optimization is used to get optimum profit. Judging from the optimum production results, manufacturers who carry out in-house refurbishing choose a higher degree of interchangeability and produce more new products. Products with an interchangeability design are products that can be used to replace similar products with the same function. Based on economic benefits, manufacturers who carry out in-house refurbishing get greater profits than outsourcing refurbishing. Viewed from environmental sustainability, outsourcing refurbishing is more environmentally friendly than in-house refurbishing.
UTILIZATION OF AI IN MARKETING CREATIVE PRODUCTS MADE FROM WOOD WASTE IN THE CRAFTSMEN COMMUNITY OF NGEMPLAK DISTRICT, BOYOLALI REGENCY Siswanto, Siswanto; Nughthoh Arfawi Kurdhi; Nugroho Arif Sudibyo; Supriyadi Wibowo; Putranto Hadi Utomo
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 5 (2025): Oktober 2025
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v5i5.11546

Abstract

This study explores the application of Artificial Intelligence (AI) to enhance the aesthetic quality and design innovation of creative products made from wood waste in Ngemplak District, Boyolali Regency, Indonesia. Local craftsmen in this area often face challenges in improving product appearance due to limited access to design tools and technological resources. By integrating AI-based design systems, such as generative design algorithms, image enhancement models, and style transfer techniques, artisans can develop more appealing, modern, and market-responsive product designs while maintaining the authenticity of local craftsmanship. The use of AI not only supports creativity and efficiency in the product development process but also contributes to sustainability by increasing the added value of upcycled wood materials. This study highlights how AI-driven visual enhancement can bridge traditional craftsmanship with digital innovation, promoting competitiveness and sustainable growth in rural creative industries.
Marketing Refurbished Products with Carbon-Emission-Constraint Policy and Consumer Behavior: Offline vs. Online Channels Nughthoh Arfawi Kurdhi; Yahya Putra Pradana; Yogi Pasca Pratama; Vika Yugi Kurniawan
(IJCSAM) International Journal of Computing Science and Applied Mathematics Vol. 10 No. 2 (2024)
Publisher : LPPM Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24775401.ijcsam.v10i2.4570

Abstract

Refurbished products, which are repaired or restored to a like-new condition, offer a more sustainable alternative to new products by extending their lifecycle. However, the marketing of refurbished products faces several chal-lenges, including consumer perception, trust, and the impact of carbonemission-constraint policies. This study aims to address these challenges and provide recommendations for effective marketing strategies. We explore the marketing of refurbished products within the context of carbon-emission-constraint policies, specifically comparing offline and online channels. We present two channel models, with the first model, referred to as Model O, fo-cusing on marketing refurbished products through the manufacturer’s own e-commerce channel. The second model, known as Model T, explores the al-ternative approach of outsourcing the marketing activity to a third-party en-tity. Carbon-emissionconstraint policies impose restrictions on businesses’ carbon footprint, affecting their marketing strategies. Businesses must navi-gate these policies while effectively promoting refurbished products to envi-ronmentally conscious consumers. By addressing the challenges faced in marketing refurbished products with carbon-emission-constraint policies, consumer behavior, and comparing offline and online channels, this thesis aims to provide valuable insights for businesses and policymakers to effec-tively promote sustainable consumption and contribute to a more environ-mentally conscious industry.
Connectivity of The Triple Idempotent Graph of Ring Zn Vika Yugi Kurniawan; Bayu Purboutomo; Sutrima Sutrima; Nughthoh Arfawi Kurdhi
(IJCSAM) International Journal of Computing Science and Applied Mathematics Vol. 10 No. 1 (2024)
Publisher : LPPM Institut Teknologi Sepuluh Nopember

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Abstract

Co-Authors Ade Susanti Agus Purnomo Agus Purnomo Aksyarafah, Adifa Yasin Anisatul Farida Bayu Purboutomo Bowo Winarno Dewi Retno Sari S Dewi Retno Sari Saputro Dewi Retno Sari Saputro, Dewi Retno Diana Setiani Dwi Purnama Fanny Widadie Firdiana, Intan Hikmah Intan Hikmah Firdiana Istiqlala, Hamda Yauma Ivanni, Anas Meinawati, Rima Nugroho Arif Sudibyo Purboutomo, Bayu Purnami Widyaningsih Putranto Hadi Utomo PUTRI WULANDARI Ririn Setiyowati Ririn Setyowati Rizkita, Nabiella Zahra Rudi Hartono Rudi Hartono S Siswanto Salsabila, Unik Hanifah Santika, Putri Aura Sena, Arya Bima Setiyowati, Ririn Supriyadi Wibowo Sutanto Sutanto Sutanto Sutrima Sutrima Tanjung, Andjani Ayu Cahaya Vania, Kezia Abigail Vika Yugi Kurniawan Vika Yugi Kurniawan Wijiyanto Yahya Putra Pradana Yogi Pasca Pratama, Yogi Pasca Yuliana