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All Journal CAUCHY: Jurnal Matematika Murni dan Aplikasi Jurnal Pengabdian Mandiri Jurnal Matematika Integratif International Journal of Computing Science and Applied Mathematics-IJCSAM
Adam Adam
Institut Teknologi Kalimantan
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Transportation Other

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PENGEMBANGAN HASIL PANEN KELOMPOK TANI SUMBER LAUT BERJAYA DAN PENGOPTIMALISASIAN PEMASARAN HASIL PANEN MELALUI DIGITAL MARKETING Adam Adam; Muliady Faisal; Dimas Aryo Mahendro; Dastin Pranata Yuda; Sri Eka Saputri; Nurlisa Nurlisa; Putri Oktatriani; Herliana Nur Ekawati; Renaldi Tri Saputra; Muhammad Adnan Fadhil
JURNAL PENGABDIAN MANDIRI Vol. 2 No. 8: Agustus 2023
Publisher : Bajang Institute

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Abstract

Kegiatan pengembangan hasil panen Kelompok Tani Sumber Laut Berjaya, Balikpapan merupakan bagian dari kegiatan pengabdian masyarakat mahasiswa mengabdi desa atau KKN. Tujuan dari KKN ini adalah untuk mengembangkan hasil panen rumput laut kelompok tani serta membantu mereka untuk bisa memasarkannya secara digital. Hasil dari implementasi KKN ini menunjukkan solusi dalam bentuk pengembangan produk mie dan cemilan dari rumput laut serta pelatihan pemasaran melalui media sosial. Program ini diharapkan dapat membantu kelompok tani meningkatkan pendapatan mereka dan memberikan dampak positif terhadap lingkungan. Melalui pengembangan produk dan pemasaran melalui media sosial, diharapkan kelompok tani dapat mencapai konsumen yang lebih luas, meningkatkan visibilitas produk, dan meningkatkan besar penjualan. Secara keseluruhan, pelaksanaan KKN di Kelompok Tani Sumber Laut Berjaya mendapatkan respon positif dari masyarakat dan kelompok tani, serta berhasil diimplementasikan dengan baik.
Matriks Hamburan pada Graf Kuantum dengan Kondisi Simpul Robin Burhan, Moh. Januar Ismail; Adam, Adam
Jurnal Matematika Integratif Vol 21, No 2: Oktober 2025
Publisher : Department of Matematics, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jmi.v21.n2.68300.193-202

Abstract

Artikel ini membahas formulasi matriks hamburan pada graf kuantum dengankondisi simpul tipe-δ (Robin), yang merupakan perluasan dari kondisi Neumann–Kirchhoff. Analisis dilakukan melalui propagasi gelombang bidang pada setiapruas dan penerapan kondisi kontinuitas serta fluks di simpul-simpul graf. Daripenyelesaian masalah nilai eigen operator Laplace, diperoleh ekspresi eksplisit untukamplitudo gelombang bidang dan entri matriks hamburan pada simpul batasmaupun simpul interior. Hasil penelitian menunjukkan bahwa parameter Robinmengatur besarnya refleksi dan transmisi gelombang, serta mempengaruhi distribusienergi di sekitar simpul. Temuan ini memberikan dasar matematis bagi studi lanjutanmengenai transportasi kuantum dan fenomena resonansi pada jaringan berbasisgraf.
Convergence and Completeness in L_2 (P) with respect to a Partial Metric Annisa Rahmita Soemarsono; Mahmud Yunus; Erna Apriliani; Adam Adam
(IJCSAM) International Journal of Computing Science and Applied Mathematics Vol. 9 No. 1 (2023)
Publisher : LPPM Institut Teknologi Sepuluh Nopember

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Abstract

Metric spaces can be generalized to be partial metric spaces. Partial metric spaces have a unique concept related to a distance. In usual case, there is no distance from two same points. But, we can obtain the distance from two same points in partial metric spaces. It means that the distance is not absolutely zero. Using the basic concept of partial metric spaces, we find analogy between metric spaces and partial metric spaces. We define a metric d^p formed by a partial metric p, with applying characteristics of metric and partial metric. At the beginning, we implement the metric d^p to determine sequences in L_2 (P). We then ensure the convergence and completeness in L_2 [a,b] can be established in L_2 (P). In this study, we conclude that the convergence and completeness in L_2 [a,b]  can be established in L_2 (P) by constructing a partial metric p_2 induced by a metric d^p.
Infection Clearance Rate in Fractional-Order SEIR Model: Stability Analysis Muhammad Iqbal; Mohammad Januar Ismail Burhan; Adam Adam
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 11, No 1 (2026): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/cauchy.v11i1.40849

Abstract

Infectious disease has become a serious problem over the past few years. At the same time, research on disease dynamics keeps advancing, especially on diseases caused by viruses. One concept that has been used in epidemic models is fractional calculus, or more specifically, fractional differential equations. This paper discusses the analytical properties of a fractional-order SEIR model, which are then verified by numerical simulations. Fractional-order has the property of memory effect, which represents the past experience effect on the current behavior of people. Mathematically, the present state is affected by previous states. Analytical results have shown that fractional-order value does not change the stability condition for each equilibrium. It is shown that there exists a stronger sufficient condition for disease-free equilibrium to be globally asymptotically stable. For the endemic equilibrium, it is only proven to be locally asymptotically stable when the basic reproduction number is greater than 1. Simulation results from Explicit Fractional Order Runge--Kutta (EFORK) method are confirmed to be in agreement with the basic properties provided by the analysis. The results also illustrate the impact of fractional-order and infection clearance rate, indicating that smaller fractional-orders converge faster compared to larger orders.
Co-Authors Annisa Rahmita Soemarsono Burhan, Moh. Januar Ismail Dastin Pranata Yuda Dimas Aryo Mahendro Erna Apriliani Herliana Nur Ekawati Mahmud Yunus Mohammad Januar Ismail Burhan Muhammad Adnan Fadhil Muhammad Iqbal Muliady Faisal Nurlisa Nurlisa Putri Oktatriani Renaldi Tri Saputra Sri Eka Saputri Yunus, Mahmud