Article Per Year (5 Year)
p-Index From 2021 - 2026
4.928
P-Index
This Author published in this journals
All Journal JINOP (Jurnal Inovasi Pembelajaran) JIPM (Jurnal Ilmiah Pendidikan Matematika) MAJAMATH: Jurnal Matematika dan Pendidikan Matematika Jurnal Pendidikan Lingkungan dan Pembangunan Berkelanjutan M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika International Journal of Marine Engineering Innovation and Research Range : Jurnal Pendidikan Matematika Jurnal Abdimas Ilmiah Citra Bakti (JAICB) JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Plusminus: Jurnal Pendidikan Matematika Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) Jurnal Pengabdian Masyarakat (ABDIRA) Journal of Innovation Research and Knowledge Jurnal Marine Inside Cakrawala: Jurnal Pengabdian Masyarakat Global Al-Irsyad Journal of Mathematics Education MATHEdunesa Lemma: Letters of Mathematics Education Pandawa : Pusat Publikasi Hasil Pengabdian Masyarakat Edukasi Elita : Jurnal Inovasi Pendidikan CONSISTAN : Jurnal Tadris Matematika Jurnal Penelitian Sains Teknologi
Tanti Diyah Rahmawati
POLITEKNIK PELAYARAN SURABAYA
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering 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 Other

Published : 28 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 28 Documents
Search

 1   2   3 
Assessing the role of the Automatic Identification System (AIS) in navigational safety: A case study of the General Cargo Vessel MV Guhi Mas Tanti Diyah Rahmawati; Anak Agung Istri Sri Wahyuni; Tika Septia
Journal Marine Inside Vol. 7 No. 1 (2025)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/ejmi.v7i1.122

Abstract

Shipping safety is fundamental to the maritime industry, and navigational systems are central to safe operations. In line with IMO/SOLAS requirements, the Automatic Identification System (AIS) supports collision avoidance, ship traffic services, navigational aids, search and rescue, and accident investigation. AIS continuously broadcasts a vessel’s identity, position, course, speed, and navigational status, enabling other ships and coastal stations to track targets and anticipate risk. Integrated with ECDIS, radar, and ARPA, AIS enhances situational awareness in meeting, crossing, and overtaking situations by providing parameters such as CPA (Closest Point of Approach) and ETA (Estimated Time of Arrival). This study analyzes the role of AIS in navigational safety on a general cargo vessel (MV Guhi Mas). The findings indicate that AIS is critical to safe navigation: it improves target identification around the vessel, facilitates real-time data exchange with VTS, strengthens decision-making on the bridge, and contributes to incident prevention and post-event analysis. Regulatory carriage requirements further underscore AIS as an essential instrument for reducing maritime accidents.   Keselamatan pelayaran merupakan fondasi industri maritim, dan sistem navigasi berperan sentral dalam operasi yang aman. Selaras dengan persyaratan IMO/SOLAS, Automatic Identification System (AIS) mendukung pencegahan tubrukan, layanan lalu lintas kapal, sarana bantu navigasi, pencarian dan penyelamatan (SAR), serta investigasi kecelakaan. AIS menyiarkan secara kontinu identitas kapal, posisi, haluan, kecepatan, dan status navigasi, sehingga kapal lain dan stasiun pantai dapat melacak target dan mengantisipasi risiko. Terintegrasi dengan ECDIS, radar, dan ARPA, AIS meningkatkan kesadaran situasional pada situasi berhadapan, bersilangan, dan menyalip dengan menyediakan parameter seperti CPA (Closest Point of Approach) dan ETA (Estimated Time of Arrival). Studi ini menganalisis peran AIS dalam keselamatan navigasi pada kapal general cargo (MV Guhi Mas). Temuan menunjukkan bahwa AIS krusial bagi navigasi aman: meningkatkan identifikasi target di sekitar kapal, memfasilitasi pertukaran data waktu nyata dengan VTS, memperkuat pengambilan keputusan di anjungan, serta berkontribusi pada pencegahan insiden dan analisis pascakejadian. Persyaratan pemasangan wajib dalam regulasi semakin menegaskan AIS sebagai instrumen esensial untuk menurunkan kecelakaan maritim.
Keefektivan Desain LKT untuk Memahami Penentuan Luas WP dan TPC Menggunakan Aturan Simpson 1/3 Wulan Marlia Sandi; Vigih Hery Kristanto; Eka Nurmala Sari Agustina; Tanti Diyah Rahmawati
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol. 14 No. 1 (2025)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v14i1.23164

Abstract

Penelitian ini bertujuan untuk menguji keefektivan desain Lembar Kerja Taruna (LKT) dalam membantu taruna memahami perhitungan luas Waterplane (WP) dan Ton per Centimetre Immersion (TPC) menggunakan aturan Simpson 1/3. Permasalahan utama yang melatarbelakangi penelitian ini adalah masih banyaknya taruna yang mengalami kesulitan menghubungkan konsep integral dengan data numerik dalam konteks perkapalan. Penelitian dilaksanakan di Politeknik Pelayaran Surabaya dengan melibatkan 43 taruna Program Studi DIII Teknika dan DIV Teknik Rekayasa Permesinan Kapal (TRPK) sebagai subjek. Metode yang digunakan ialah kombinasi kualitatif dan kuantitatif dengan instrumen berupa catatan lapangan, kuesioner pendapat positif (KPP), dan tes kemampuan kognitif (TKK). Analisis kualitatif dilakukan melalui triangulasi data, sedangkan analisis kuantitatif menggunakan uji Wilcoxon karena data berdistribusi tidak normal. Hasil penelitian menunjukkan bahwa proses pembelajaran telah berpusat pada taruna, dosen melaksanakan pembelajaran secara sistematis, dan aktivitas taruna relevan dengan tujuan pembelajaran. Sebanyak 100% taruna memberikan pendapat positif terhadap LKT, serta hasil uji Wilcoxon menunjukkan adanya peningkatan signifikan kemampuan kognitif setelah pembelajaran. Dengan demikian, dapat disimpulkan bahwa LKT yang dikembangkan efektif mendukung pemahaman taruna dalam penerapan aturan Simpson 1/3 pada perhitungan WP dan TPC.   This study aims to examine the effectiveness of the Cadet Worksheet (LKT) in helping cadets understand the calculation of the Waterplane (WP) area and Ton per Centimetre Immersion (TPC) using Simpson’s 1/3 rule. The main problem underlying this research is that many cadets still find it difficult to connect integral concepts with numerical data in the context of shipping. The research was conducted at the Surabaya Maritime Polytechnic involving cadets from the DIII Marine Engineering and DIV Ship Machinery Engineering Technology programs as subjects. The method employed was a combination of qualitative and quantitative approaches using instruments such as field notes, a positive opinion questionnaire (KPP), and cognitive ability tests (TKK). Qualitative analysis was carried out through data triangulation, while quantitative analysis used the Wilcoxon test since the data were not normally distributed. The results indicated that the learning process was student-centered, the lecturer implemented the lessons systematically, and cadet activities were relevant to the learning objectives. A total of 100% of cadets gave positive opinions regarding the LKT, and the Wilcoxon test results showed a significant improvement in cognitive ability after the learning process. Thus, it can be concluded that the developed LKT is effective in supporting cadets’ understanding of the application of Simpson’s 1/3 rule in calculating WP and TPC.
Penggunaan Alat Peraga untuk Meningkatkan Motivasi dan Hasil Belajar Matematika Peserta Didik Kelas VI SD Inpres Lisabheto: Dominika Anvrina Iry; Wahyuningsih Wahyuningsih; Tanti Diyah Rahmawati
MAJAMATH: Jurnal Matematika dan Pendidikan Matematika Vol. 5 No. 2 (2022): Vol. 5 No. 2 September 2022
Publisher : Prodi Pendidikan matematika Universitas Islam Majapahit (UNIM), Mojokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36815/majamath.v5i2.2143

Abstract

The method used in this study is Classroom Action Research (CAR) using teaching aids to find out whether there is an increase in learning outcomes and the motivation of students in class VI SD Inpres Lisabheto in mathematics, especially material building. Based on the pre -survey results, explaining that many student learning outcomes in pre -cycles have not yet reached the KKM, as well as the low motivation to learn students. This can be seen at the first meeting with an average learning outcome of 65.85 completeness level of 50% and the second meeting averaged 75.78 disjolized 1 so that the completeness level of 68.75%. Because there are learning outcomes that have not yet reached the KKM, they will be continued. On average in the second cycle the first meeting was 90.01 completeness level of 100% and at the second meeting an average of 95.63 with a completeness level of 100%. In this second cycle it has reached KKM with a value of ? 66. While the motivation of student learning in the first cycle with an average of 49.9 and the second cycle reaches 62.8. Based on the average learning motivation in cycle 1 and cycle 2 it can be concluded that the media of teaching aids can affect student motivation so that it provides maximum learning outcomes after evaluating class VI at SD Inpres Lisabheto Academic Year 2021/2022
PENGEMBANGAN PERANGKAT PROBLEM BASED LEARNING UNTUK MENINGKATKAN KETERAMPILAN PENELUSURAN INFORMASI ILMIAH Riana Setiowati; Tanti Diyah Rahmawati
Journal of Innovation Research and Knowledge Vol. 5 No. 12 (2026): Mei 2026
Publisher : Bajang Institute

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

Abstract

Pesatnya kemajuan teknologi menuntut ketersediaan sumber daya manusia yang berkualitas, khususnya di Politeknik Pelayaran Surabaya. Namun, pada kenyataannya, para taruna masih menghadapi kendala dalam penguasaan kajian teori maupun pengaplikasian praktis. Sebagai solusi, penelitian ini menerapkan model Problem Based Learning (PBL) yang berpusat pada mahasiswa untuk meningkatkan keterampilan penelusuran informasi ilmiah pada mata kuliah Teknologi Informatika. Penelitian pengembangan ini mengadopsi metode Dick & Carey. Proses pengembangan melibatkan berbagai tahap uji coba, mulai dari validasi oleh ahli desain pembelajaran dan ahli materi, hingga uji coba langsung kepada Taruna Diploma III. Metode penelitian yang digunakan menggunakan pendekatan Research and Development. Hasil penelitian menunjukkan tingkat kelayakan yang sangat tinggi. Uji rancangan mencapai persentase 80%, sementara uji desain memperoleh 85%. Pada tahap implementasi, uji coba perorangan, kelompok kecil, dan kelompok besar secara konsisten meraih skor antara 87% hingga 89%. Berdasarkan data tersebut, perangkat PBL ini dinyatakan sangat layak digunakan baik dari segi desain maupun isi.
NuminaMath 7B: Revolutionizing Math Solving with Integrated Reasoning Advanced Generative AI Tools and Python REPL Adi Jufriansah; Irwan Akib; Naufal Ishartono; Azmi Khusnani; Tanti Diyah Rahmawati; Edwin Ariesto Umbu Malahina; Osniman Paulina Maure; Nova Tri Romadloni
Jurnal Penelitian Sains Teknologi Vol. 2, No. 1, March 2026
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/saintek.v2i1.15728

Abstract

The efficacy of NuminaMath 7B, an AI model that was created to address mathematical challenges, is assessed in this investigation. We evaluated the model's accuracy and efficiency against conventional methods through experiments that produced quantitative data. Qualitative data were collected through surveys and interviews with users to gain insight into their experiences and pinpoint areas for improvement. The survey results indicated that users found NuminaMath 7B to be pertinent, effective, and user-friendly, as evidenced by the exceptionally high average scores in user experience (95), perception of features and interface (90), and additional feedback (85). NuminaMath 7B was able to offer mathematical solutions with logical and detailed explanations as a result of the model's development through two phases of adjustments, which were conducted using the Chain of Thought (CoT) methodology and inspiration from the Tool-Integrated Reasoning Agent (ToRA) framework. Testing demonstrated that the model achieved a score of 29 out of 50 in the AI Math Olympiad competition, despite encountering difficulties in resolving more intricate problems. This study underscores the significance and urgency of AI technology, particularly in the field of mathematics, as well as the significant potential of AI models to facilitate a more comprehensive comprehension of mathematical concepts.
Analysis of the Captain's Role to Improve Compliance with Safety Protocols on the UV Royal King Ali Tanti Diyah Rahmawati; Anak Agung Istri Sri Wahyuni; I'ie Suwondo; Tika Septia; Joko Cahyono
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 3 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i3

Abstract

In Indonesia, there were more than 174 ship accidents from 2021–2025, with the main causes including human error, lack of operational supervision, and low crew compliance with applicable safety protocols. This study aims to: 1) describe the condition of crew compliance of the UV. Royal King Ali to applicable safety protocols; 2) To identify and analyze the factors causing low crew compliance with safety protocols; and 3) To analyze the crew supervision and management strategies implemented by the captain in an effort to improve compliance with safety protocols. The research method used is descriptive qualitative. Data collection uses observation, interviews and documentation. The results of the study indicate that the compliance of the UV. Royal King Ali crew was initially still low with a PPE compliance level of 63.3%. The main causes are lack of communication, crew fatigue, low understanding of safety procedures, absence of an incentive system, suboptimal equipment conditions, lack of supervision, and operational pressure. Efforts to increase compliance with safety protocols were implemented and were successful, as shown by an increase in compliance with PPE use of 27.4% and an overall safety percentage of 30.9%.
An Assessment Of Waste Management Practice In Ship Operations and Their Implications For Port Environmental Protection: (Case Study: Tanjung Perak Port) Anak Agung Istri Sri Wahyuni; Monika Retno Gunarti; Mario Fanny Nurdiansyah; Tanti Diyah Rahmawati
Jurnal Ilmiah Pendidikan Lingkungan dan Pembangunan Vol 27 No 02 (2026): PLPB: Jurnal Pendidikan Lingkungan dan Pembangunan Berkelanjutan, Volume 27 Nom
Publisher : Program Studi Pendidikan Kependudukan dan Lingkungan Hidup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/plpb.v27i02.69424

Abstract

This study aims to analyze the waste management system of ship operational activities at Tanjung Perak Port, identify obstacles in ship waste management, and formulate strategies to improve the effectiveness of waste management to support port environmental protection. The research method used descriptive qualitative. Data collection techniques include observation, interviews, documentation, and literature studies. Data analysis was conducted using the fishbone analysis method to identify the main factors causing ship waste management problems. The results show that the ship waste management system at Tanjung Perak Port already has a regulatory basis and port reception facilities, but there is still room for improvement in implementation through facility capacity development, provision of sewage waste management services, the level of ship operator compliance with the use of port facilities that are still in the strengthening stage, and the ship waste monitoring system that is currently in the integration process. Therefore, it is necessary to increase the capacity of waste reception facilities, strengthen coordination between port stakeholders, and implement a more integrated waste management monitoring system to support port environmental protection.
Mitigasi Risiko Pencemaran Laut dalam Krisis Kamar Mesin: Analisis Problem Solving Skills Taruna Teknika Politeknik Pelayaran Monika Retno; Anak Agung Istri Sri Wahyuni; Tanti Diyah Rahmawati; Antonius Edy Kristiyono
Jurnal Ilmiah Pendidikan Lingkungan dan Pembangunan Vol 27 No 02 (2026): PLPB: Jurnal Pendidikan Lingkungan dan Pembangunan Berkelanjutan, Volume 27 Nom
Publisher : Program Studi Pendidikan Kependudukan dan Lingkungan Hidup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/plpb.v27i02.70339

Abstract

Marine environmental pollution stemming from ship operations—specifically within the engine room—remains a critical ecological threat to global marine biodiversity. Incidents involving oil spills and illegal waste discharge are frequently triggered by technical system failures, compounded by crew anxiety during emergencies. Marine engineering cadets, as future engine room operators, are required to master not only mechanical aspects (hard skills) but also adaptive problem-solving capabilities under extreme psychological pressure. This study aims to analyze the urgency, efficacy, and dynamics of problem-solving skills among marine engineering cadets at the Marine Polytechnic as a means of mitigating marine pollution risks during engine room crises. A descriptive qualitative method employing a purposive case study approach was utilized. The research focused on observing final-year marine engineering cadets during training sessions in the Engine Room Simulator (ERS) laboratory. Data collection relied on triangulation, incorporating structured participatory observation based on Engine-room Resource Management (ERM) competency rubrics, in-depth interviews, and an analysis of simulator data logs. The findings reveal significant cognitive limitations within the cadets' problem-solving cycle. While the cadets demonstrated excellent performance in the problem identification stage (85%), their capacity declined sharply during the solution execution phase (40%) and the environmental impact evaluation stage (30%).
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Fachrudin Adi Jufriansah AGUS DWI SANTOSO Agustinus A Ete Anak Agung Istri Sri Wahyuni Anak Agung Istri Sri Wahyuni Antonius Edy Kristiyono Anvrina Iry, Dominika Azmi Khusnani DEA, WIHELMINA ADVENSIA Dhema, Magdalena Dirhamsyah Diyah Purwitasari Dominika Anvrina Iry Dua Getan, Maria Amaranta Edwin Ariesto Umbu Malahina Eka Nurmala Sari Agustina, Eka Nurmala Sari Erwin Prasetyo Erwin Prasetyo Fitriah Fitriah Gisela Nuwa Handayani, Ucik Fitri I'ie Suwondo Irwan Akib Joko Cahyono Kanisius Goreti Sangi Kristanto, Vigih Heri Magdalena Dhema Maghfiroh, Khoridatul Maria Amaranta Dua Getan Maria Aprilia Venerani Gokun Mario Fanny Nurdiansyah MARUNG, ADRIANUS MAYOS Monika Retno Monika Retno Gunarti Murniati . Naufal Ishartono Ndori, Vinsensius Herianto Nova Tri Romadloni Novitasari Novitasari Nur Chotimah Nur Fitriah Safrudin Nurfitriah Safrudin Osniman Paulina Maure Prisetia Rini, Ambar Rezky Rahma Ruslan Riana Setiowati Sabarudin Saputra Salmawaty Salmawaty Salwiana Salwiana Salwiana Sandi, Wulan Marlia Sisilia Densiana Tika Septia Tika Septia Tika Septia Vigih Hery Kristanto Vinsensius H Ndori Vinsensius H Ndori Vinsensius Herianto Ndori Wahyuningsih Wahyuningsih Wahyuningsih, Wahyuningsih Wulan Marlia Sandi