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All Journal KADIKMA Jurnal Informatika Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika JFMR (Journal of Fisheries and Marine Research) Jurnal Lemuru : Jurnal Ilmu Perikanan dan Kelautan Indonesia Media Pendidikan Matematika
Eko Waluyo
Balai Penelitian Tanaman Obat, Tawangmangu
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Engineering Environmental Science Mathematics Social Sciences

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Penggabungan Objek Virtual Dengan Objek Nyata Pada Augmented Reality Untuk Museum Lampung Waluyo, Eko; DEW, ossy
Jurnal Informatika Vol 10, No 2 (2010): Jurnal Informatika
Publisher : IIB Darmajaya

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

Abstract

Information on historic objects in the Museum of Lampung are generally in the form of text that are static and limited. Information on the object as name of the object, as long as objects, useful objects, as well as functions found on museum objects shaped only static text with small font so it looks less informative and interesting. Application of augmented reality technology used to develop an application that is useful as a medium for additional information on the objects in the Museum of Lampung in the form of a virtual text, 3D objects, animations, audio, and video. This application was built using software libraries ARtoolkit to display additional information in the form of a virtual text, 3D objects, and animation. Macromedia Flash Player 8 is used as an additional interface for displaying information in the form of audio and video. This application was given the name ARMULA, which stands for Augmented Reality Museum of Lampung. With this application is expected to make the object more informative and interesting, so as to increase the interest and fascination of the public to the Museum of Lampung. Key words : ARMULA, ARtoolkit, Augmented Reality, Library, Museum Lampung 
PEWARNAAN GRACEFUL PADA GRAF HASIL OPERASI COMB GRAF SIKLUS DAN GRAF STAR Waluyo, Eko; Wahab, Abdul Aziz; Rudi, Mohammad
Kadikma Vol 14 No 1: April 2023
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v14i1.38552

Abstract

Penelitian ini merupakan jenis penelitian eksploratif dengan menggunakan metode deduktif aksiomatik dan metode pendeteksi pola. Penelitian ini bertujuan untuk mengetahui pewarnaan graceful dan bilangan kromatik pada graf siklus comb graf star. Dari penelitian ini ditemukan satu teorema baru yang terdiri dari tiga kasus mengenai bilangan kromatik graceful pada graf siklus comb graf star.
The METRIC COLORING OF RELATED WHEEL GRAPHS Waluyo, Eko
Kadikma Vol 13 No 3 (2022): Desember 2022
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v13i3.36894

Abstract

In this paper, graphs are finite and connected graph. Let be a vertex coloring of a graph G where two adjacent vertices may be colored the same color. Consider the color classes . For a vertex , representation color of v is the k-vector , where . If for every two adjacent vertices u and v of G, then f is called a metric coloring of G. The minimum k for which G has a metric k-coloring is called the metric chromatic number of G and is denoted by . In this paper, we study the metric chromatic numbers of related wheel graphs namely double wheel graph, web graph, friendship graph and helm graph.
BILANGAN KROMATIK GRACEFUL PADA SUBDIVISI GRAF SIKLUS COMB GRAF STAR Waluyo, Eko; Wisudaningsih, Endah Tri; Masruro, Masruro
Kadikma Vol 14 No 1: April 2023
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v14i1.38551

Abstract

Pewarnaan graceful merupakan kombinasi antara konsep graceful dan pewarnaan simpul. Pewarnaan graceful dilakukan dengan meminimalkan warna simpul dan sisi secara tepat. Sedangkan warna sisi diperoleh dari pewarnaan simpul yang bertetangga. Penelitian ini bertujuan untuk mengetahui pewarnaan graceful dan bilangan kromatik pada graf siklus comb graf star. Penelitian ini merupakan jenis penelitian eksploratif dengan menggunakan metode deduktif aksiomatik dan metode pendeteksi pola. Dari penelitian ini ditemukan satu teorema baru yang terdiri dari tiga kasus mengenai pewarnaan graceful pada graf siklus comb graf star.
The Development of Geometry recreation in the form of Math Maze and Learning Equipment Circle Subject on 8th Grade Junior High School Waluyo, Eko
Kadikma Vol 15 No 2 (2024): Agustus 2024
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v15i2.47431

Abstract

The aim of this research is to develop recreational geometry in the form of Math Maze and learning tools for Circle material. The development model used is the Plomp Development Model. The test subjects were Class VIII students at Argopuro Panti Middle School, Jember, academic year 2023/2024. The product developed obtained an average validation score of 3.24 and was included in the valid category, student activity was obtained on average 93.5% which was included in the very active category and from the student response questionnaire, it was obtained that 98% of students were very happy with learning-based learning. recreational geometry in the form of Math Maze. It can be said that the product developed is valid and practical Key words: recreational geometry, circles, teaching modules, LKPD
Analysis of Students' Errors in Solving Mathematical Problems Based on Field Independent and Field Dependent Cognitive Styles Virnanda, Lady's Intana; Lestari, Wahyu; Waluyo, Eko
Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika Vol 9 No 2 (2025)
Publisher : Universitas Mercu Buana Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26486/jm.v9i2.4632

Abstract

Errors made by students in solving mathematical problems remain a common issue encountered in the learning process. Cognitive styles, such as Field Independent (FI) and Field Dependent (FD), are believed to influence how students comprehend and solve mathematical problems. Based on this premise, this study aims to analyze students' errors in solving mathematical problems by taking into account their cognitive styles, namely Field Independent (FI) and Field Dependent (FD). This research was conducted at SMAN 1 Besuk using a qualitative descriptive method and involved six students selected based on the results of the Group Embedded Figures Test (GEFT). Data were collected through the GEFT, problem-solving tests, and interviews, then analyzed using Newman's Error Analysis Procedure. The findings show that students with an FI cognitive style typically made errors in process skills (17.13%) and in constructing final answers (20.00%). In contrast, students with an FD cognitive style frequently made errors in problem transformation (45.71%), process skills (57.14%), and final answers (65.71%). Several factors contributing to these errors include lack of accuracy, rushing through tasks, misinterpreting implicit information in the problems, and failing to recheck final answers. The study concludes that cognitive style influences both the types and frequency of errors students make when solving mathematical problems. These findings highlight the importance for educators to develop instructional strategies that are better aligned with students' cognitive styles to enhance learning effectiveness.
UTILIZATION OF LINGO APPLICATION IN OPTIMIZING SNACKS USING LINEAR PROGRAM: PEMANFAATAN APLIKASI LINGO DALAM OPTIMALISASI MAKANAN RINGAN MENGGUNAKAN PROGRAM LINEAR Djeni, Darwin; Waluyo, Eko; Hasanah, Husnul
Kadikma Vol. 15 No. 3 (2024): Desember 2024
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v15i3.53710

Abstract

Micro-enterprises in the snack food sector often face various challenges, including limited raw materials, high production costs, and fluctuating market demand. This study aims to optimize the production of snack foods such as sausage corndogs, cheese corndogs, and chocolate banana rolls (piscok) through the application of linear programming using the LINGO software. The research employs a quantitative descriptive approach with field observations conducted on the researcher’s own business located in Bulang Village, Probolinggo Regency. A mathematical model was developed by taking into account real-world constraints such as production capacity and raw material availability, with the goal of maximizing profit. The analysis using LINGO indicates that the optimal production combination consists of 20 sausage corndogs, 5 cheese corndogs, and 20 piscok per day, resulting in a maximum daily profit of IDR 75,000. These findings suggest that the use of LINGO software can significantly assist micro-entrepreneurs in managing resources more efficiently and enhancing the profitability of snack food businesses.
Karakteristik Proximate dan Fisika Premium Fish Patties (Clarias sp.) dengan Formulasi Subtitusi Daging Ayam Potong (Gallus gallus domesticus) Kusuma, Bayu; Dayuti, Sri; Waluyo, Eko; Perdana, Angga Wira; Syihab Q.R.M., Ahmad Fahmi; Habibie, Intan Yusuf
JFMR (Journal of Fisheries and Marine Research) Vol. 4 No. 3 (2020): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2020.004.03.11

Abstract

The use of catfish for premium fish patties products has a weakness in the low of gel strength. The substitution of catfish with chicken is expected to solve this problem. Three substitution formulations of catfish using chicken were carried out experimentally to determine the proximate variables and physics of premium fish patties. The results showed that the substitution of catfish using chicken in premium fish patties greatly affected the physical characteristic, especially texture. This is in contrast to the results that the substitution treatment does not affect the proximate and color characteristics.
KARAKTERISTIK MIKROBIOLOGI DAN SENSORI PENAMBAHAN PHYCOCOLLOIDS PADA ES KRIM SEBAGAI STABILISER Kusuma, Bayu; Mubarok, Ahmad Syihab Fahmil QR; Habibie, Intan Yusuf; Perdana, Angga Wira; Astuti, Retno Tri; Ma'rifat, Tian Nur; Yufidasari, Hefti Salis; Waluyo, Eko; Johanis, Johan; Aji, Muhammad Tri
JURNAL LEMURU Vol 5 No 1 (2023): JURNAL LEMURU: Jurnal Ilmu Perikanan dan Kelautan Indonesia
Publisher : Program Studi Teknologi Hasil Perikanan|Fakultas Pertanian|Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jl.v5i1.2343

Abstract

Es krim merupakan colloid yang tersusun atas komponen protein, lemak, air dan karbohidrat. Standar keamanan pangan menuntut es krim untuk dapat mengurangi resiko terhadap beberapa jenis mikroorganisme karena es krim tergolong produk turunan susu. Kondisi sanitasi dan hygiene yang dijaga terbukti mampu menekan tingkat kandungan mikroorganisme produk es krim pada titik kritisnya. Penambahan stabilizer dari jenis phycocolloid berpengaruh terhadap tekstur es krim secara sensory tanpa mempengaruhi penampakan, bau dan rasa.
Pengembangan Media Patrafu Untuk Meningkatkan Pemahaman Konsep Siswa Menengah Atas Pada Materi Transformasi Fungsi Karimah, Inayatul; Lestari, Wahyu; Waluyo, Eko
Media Pendidikan Matematika Vol. 13 No. 1 (2025)
Publisher : Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v13i1.16243

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran PATRAFU (Papan Transformasi Fungsi) guna meningkatkan pemahaman konsep siswa pada materi transformasi fungsi. Metode yang digunakan adalah Research and Development (R&D) dengan model pengembangan 4D yang terdiri atas tahap define, design, develop, dan disseminate. Subjek penelitian adalah 26 siswa kelas XI MA Fatahillah. Instrumen penelitian meliputi lembar validasi ahli, angket respon siswa, dan tes pemahaman konsep. Hasil validasi menunjukkan bahwa media PATRAFU memperoleh persentase kelayakan sebesar 100% dari ahli media dan 75% dari ahli materi, yang termasuk dalam kategori layak. Skor rata-rata angket respon siswa sebesar 93,73% menunjukkan bahwa media ini diterima dengan sangat baik. Pemahaman konsep siswa meningkat dari 26,06% (pretest) menjadi 70,34% (posttest). Hasil analisis gain ternormalisasi menunjukkan nilai rata-rata sebesar 0,6 yang termasuk dalam kategori sedang. Meskipun ketuntasan belajar klasikal belum sepenuhnya tercapai (hanya 73,08% siswa mencapai ketuntasan minimal sedang), penggunaan media PATRAFU menunjukkan potensi positif dalam meningkatkan pemahaman konsep matematika siswa secara visual dan interaktif. Media ini direkomendasikan sebagai alternatif pembelajaran khususnya pada materi transformasi fungsi.
Co-Authors aji, muhammad tri Arief Rahmawan Astuti, Retno Tri Darwin Djeni Dayuti, Sri Hasanah, Husnul Intan Yusuf Habibie Johanis, Johan Karimah, Inayatul Kusuma, Bayu Masruro Masruro, Masruro Mubarok, Ahmad Syihab Fahmil QR ossy DEW Perdana, Angga Wira Rudi, Mohammad Suprihatin, Febriyani Eka Syihab Q.R.M., Ahmad Fahmi Tian Nur Ma’rifat Virnanda, Lady's Intana Wahab, Abdul Aziz Wahyu Lestari Wisudaningsih, Endah Tri Yufidasari, Hefti Salis