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All Journal Math Didactic: Jurnal Pendidikan Matematika Jurnal At-Tarbiyat (Jurnal Pendidikan Islam) Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Info Sains : Informatika dan Sains Jurnal Aplikasi Pelayaran dan Kepelabuhanan Populer: Jurnal Penelitian Mahasiswa International Journal of Scientific Multidisciplinary Research (IJSMR) JPMP Jurnal Pengabdian Masyarakat dan Riset Pendidikan Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Jurnal Pendidikan MIPA
Sriantini, Ari
Universitas Hang Tuah
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Transportation Other

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Conception of spherical triangle in terms of learning styles Ari Sriantini; Mega Teguh Budiarto; Yusuf Fuad
Math Didactic: Jurnal Pendidikan Matematika Vol 6 No 1 (2020)
Publisher : STKIP PGRI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33654/math.v6i1.779

Abstract

This study aims to describe the conception of students in the material of spherical triangle in terms of learning styles. The conception of the students described based on the identification of students to spherical triangle and implementation spherical triangle to determine the distance of the ship and the course. Student representations of spherical triangles focused on calculating the parts of spherical triangles, the use of spherical rules for calculating distance and course of ships on a voyage. This research is an exploratory study with a qualitative approach. The subjects of this study were first semester students of the Nautica Program who have visual, auditory, and kinesthetic learning styles. The results showed that there were differences in conceptions between students who had visual, auditory, and kinesthetic learning styles. Lecturers are expected to have the right strategy in delivering lecture material, so that the material can be easily understood by students who have different learning styles.
Analysis of errors according to Newman in solving the spherical triangle Ari Sriantini; Mochamad Cholik
Math Didactic: Jurnal Pendidikan Matematika Vol 7 No 1 (2021): Januari - April 2021
Publisher : STKIP PGRI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33654/math.v7i1.1141

Abstract

The purpose of this descriptive study with qualitative approach was identifying the types of errors, the causes of errors, and how to correct them. According to Newman, these types of errors include reading, comprehension, shifting, processing, and numerical errors. The research subjects in this study were 25 students who use the test, interview, and writing methods from the first phase of the water research program. The results of the results of the interview and the student’s answers to the test were tested. The paperwork method is uses to determine the names of the students to be studied. Bases on the results of the study, 23,6% of reading error, 21,8% of reading comprehension difficulty, 17,3% of transform error, 26,4% of students experienced error in the process skill stage, 10,9% of students experience errors at the notation stage. These errors are caused by a lack of understanding of the questions given, the students are not able to change questions in the form of stories into mathematical sentences, are not careful, lack practice in working on story problems, and forget about the formulas. Lecturers should often introduce problems spherical triangle contextual to the student to improve student understanding, the student must often be trained to work on matters story that relates to the spherical triangle with various variations to practice accuracy and skills.
Problem-Based Learning To Improve Students’ Critical Thinking Skill Mochamad cholik Cholik; Tri Riyanto; Ridzwan bin Che’Rus; Ari Sriantini
At-Tarbiyat Vol 5 No 3 (2022): Islamic Education In Indonesia
Publisher : Institut Agama Islam An-Nawawi Purworejo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37758/jat.v5i3.505

Abstract

Problem-based learning is learning by presenting contextual problems. Mechanical Engineering Subjects to support the competence and competitiveness of students majoring in Mechanical Engineering at Vocational High School. The purpose of the research is to describe the results of the application of problem-based learning in order to improve students' critical thinking skills and improve problem solving skills in mechanical engineering subjects.This research is classroom action research. The subject of this study involved students of class XI of the Mechanical Engineering Study Program at SMK Negeri 3 Bojonegoro, 32 people, in the 2021/2022 academic year. This critical thinking skill uses indicators developed by Ennis.The results of cycle 3 for good criteria are 44% and very good are 28%. The number of percentages in solving problems is 72%. The results in cycle 3 for good criteria are 44% and very good are 31%. Total percentage for critical thinking ability is 75%. This shows that both of these things have exceeded the minimum percentage set at 70%, or in other wordsThe problem-based learning process can develop students' critical thinking skills in mechanical engineering subjects in SMK.The results of the research above can be said that there is a relationship between the problem-based learning process on students' critical thinking.
Development of business mathematics learning media based on macromedia flash Ari Sriantini; Dedy Kristiawan
Math Didactic: Jurnal Pendidikan Matematika Vol 8 No 2 (2022)
Publisher : STKIP PGRI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33654/math.v8i2.1816

Abstract

Media pembelajaran merupakan sarana penunjang pembelajaran untuk membantu merangsang pikiran, serta memudahkan menyampaikan informasi dari dosen ke mahasiswa atau sebaliknya. Dengan adanya media pembelajaran yang interaktif, dapat meningkatkan motivasi dan minat belajar mahasiswa, sehingga proses belajar mengajar dapat berjalan lebih efektif. Tujuan dari penelitian yang dilakukan adalah mengembangkan media pembelajaran matematika bisnis berbasis macromedia flash yang interaktif agar nantinya mampu meningkatkan hasil belajar mahasiswa. Media pembelajaran yang dikembangkan dibatasi pada materi fungsi linier dan penerapannya di bidang bisnis, khususnya bisnis pelayaran. Penelitian ini termasuk dalam penelitian dan pengembangan (Research and Development), yang mempergunakan model pengembangan Borg & Gall yang telah dimodifikasi. Subyek penelitian ini adalah mahasiswa semester I Program Studi Manajemen Pelabuhan, Program Diploma Pelayaran-Universitas Hang Tuah Surabaya. Media yang dikembangkan memuat tentang layer judul, petunjuk penggunaan, capaian pembelajaran, materi, latihan, evaluasi, profil pengembang. Hasil media pembelajaran yang telah dikembangkan layak untuk digunakan, serta mampu meningkatkan hasil belajar siswa. Media pembelajaran yang dikembangkan hanya pada pokok bahasan penerapan fungsi linier, khususnya dibidang bisnis pelayaran, sehingga perlu dikembangkan media pembelajaran untuk mata kuliah dan pokok bahasan yang lainnya. Perlu juga ditambahkan video dan audio, sehingga mahasiswa dapat belajar secara mandiri.
Bimbingan Karir sebagai Strategi dan Peluang Lulusan SMK Pelayaran di SMK Pelayaran Brajaguna Bangkalan Madura Elva Febriana Anggraeny; Ari Sriantini; Nyoman Ardiana Listriyawati; Eka Endah Suryani; M. Rangga Permana Kusuma
Jurnal Pengabdian Masyarakat Pesisir VOLUME 2 NOMOR 2
Publisher : Universitas Hang Tuah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jpmp.v2i2.100

Abstract

SMK Pelayaran Brajaguna merupakan sebuah sekolah yang berada di kabupaten Bangkalan. SMK Pelayaran Brajaguna Bangkalan memperoleh Approval dari Kementerian Perhubungan untuk Diklat Pembentukan Ahli Nautika Tingkat IV. Sekolah Pelayaran disebagian orang mengganggap bahwa sekolah tersebut adalah sekolah yang mahal dan membutuhkan waktu yang tidak sebentar serta membutuhkan usaha yang lebih untuk menyelesaikan studinya. Hal ini dikarenakan untuk lulus dari sekolah pelayaran, siswa diwajibkan menempuh beberapa tahap sebelum mendapatkan ijazah dan sertifikat dari perubungan laut. Hasil dari pengabdian masyarakat ini dapat ditarik simpulan bahwa kegiatan pemberian bimbingan karir sebagai strategi dan peluang lulusan SMK Pelayaran yang dilaksanakan di SMK Pelayaran Brajaguna Bangkalan Madura ini memberikan hasil yang positif. Hal tersebut tampak pada antusias taruna setelah pelatihan ini dilaksanakan, mereka lebih mulai percaya diri untuk melaksanakan studi lanjut maupun menulis surat lamaran kerja yang pada awalnya mereka saat diminta untuk menulis surat lamaran kerja ataupun wawancara terlihat ragu dan tidak percaya diri. 
Penentuan Kesalahan Kompas Gyro dan Magnet dengan Menggunakan Azimuth Benda Angkasa di MV. Meratus Medan 3 Faisal Akbar; Sriantini, Ari; Supangat, Supangat
Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim Vol 8 No 2 (2024): SAINTARA (September 2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Akademi Maritim Nusantara Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52475/saintara.v8i2.313

Abstract

The compass is a very important navigation tool when the ship is sailing because it is useful for showing the direction of the ship to arrive at a destination. The compass on the ship does not always show an accurate direction so the ship is sailing not in accordance with the true bow that has been made. In order for the ship to sail in accordance with the true course, corrections are required to the gyro compass and magnets. This study aims to find out the causes of errors in the compass, how to determine corrections in gyro and magnetic compasses, and the reasons why mualim rarely make corrections. The method used in this study is qualitative with data collection through observation, interviews, and documentation. From the results of observation data, interviews and documentation, the author obtained research results that mualim rarely makes corrections to gyro and magnetic compasses. This is because the mualim does not understand the calculation of the compass correction and because the weather factors are not conducive to taking the compass correction. Compass errors are caused due to variations and deviations. Variation is the difference between magnetic north and actual north, while deviation is caused by nearby magnetic interference, this results in deviation against the bow steered by the ship. Errors in the gyro compass and magnet can be corrected by using the sunbeam when the ship is sailing, taking corrections on the compass requires several tools, namely azimuth circles, gyro repeaters, stopwatches, nautical almanac books, scientific calculators. So that the officers on board are obliged to know the method of taking the correction of the gyro compass and magnet using the sun. Therefore, ship officers should learn how to calculate the correction of the gyro and magnetic compass and make corrections more often so as not to forget how to calculate it.
Development of business mathematics learning media based on macromedia flash Sriantini, Ari; Kristiawan, Dedy
Math Didactic: Jurnal Pendidikan Matematika Vol 8 No 2 (2022): Mei - Agustus 2022
Publisher : Universitas PGRI Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33654/math.v8i2.1816

Abstract

Media pembelajaran merupakan sarana penunjang pembelajaran untuk membantu merangsang pikiran, serta memudahkan menyampaikan informasi dari dosen ke mahasiswa atau sebaliknya. Dengan adanya media pembelajaran yang interaktif, dapat meningkatkan motivasi dan minat belajar mahasiswa, sehingga proses belajar mengajar dapat berjalan lebih efektif. Tujuan dari penelitian yang dilakukan adalah mengembangkan media pembelajaran matematika bisnis berbasis macromedia flash yang interaktif agar nantinya mampu meningkatkan hasil belajar mahasiswa. Media pembelajaran yang dikembangkan dibatasi pada materi fungsi linier dan penerapannya di bidang bisnis, khususnya bisnis pelayaran. Penelitian ini termasuk dalam penelitian dan pengembangan (Research and Development), yang mempergunakan model pengembangan Borg & Gall yang telah dimodifikasi. Subyek penelitian ini adalah mahasiswa semester I Program Studi Manajemen Pelabuhan, Program Diploma Pelayaran-Universitas Hang Tuah Surabaya. Media yang dikembangkan memuat tentang layer judul, petunjuk penggunaan, capaian pembelajaran, materi, latihan, evaluasi, profil pengembang. Hasil media pembelajaran yang telah dikembangkan layak untuk digunakan, serta mampu meningkatkan hasil belajar siswa. Media pembelajaran yang dikembangkan hanya pada pokok bahasan penerapan fungsi linier, khususnya dibidang bisnis pelayaran, sehingga perlu dikembangkan media pembelajaran untuk mata kuliah dan pokok bahasan yang lainnya. Perlu juga ditambahkan video dan audio, sehingga mahasiswa dapat belajar secara mandiri.
Optimalisasi Perawatan Sekoci Penolong dan Dewi-Dewi Sebagai Penunjang Keselamatan Pelayaran di KM. Kendhaga Nusantara 6 Muhammad Alfin Prasetiya; Ari Sriantini; Dedy Kristiawan
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 2 No. 4 (2024): Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v2i4.562

Abstract

Maintenance of the lifeboats and goddesses needs to be carried out so that they are ready for use by the lifeboats and goddesses at KM. Kendhaga Nusantara 6 when it was going to be used for training experienced traffic jams. Therefore, pilot 3 and engineer 3 carried out checks and maintenance of lifeboats once a week and lifeboat training was carried out once a month. This research aims to determine the implementation of lifeboat maintenance and goddesses, to find out the obstacles encountered in the implementation of maintenance of lifeboats and goddesses, as well as to find out efforts to overcome obstacles in the implementation of maintenance of lifeboats and goddesses. This research is of a quantitative type with a descriptive statistical approach, with the data collection method being interviews , observation, questionnaire. Before the questionnaire instrument was used, a validity and reliability test was carried out and the results were valid and reliable with a Cronbach's alpha value of 0.848. The results of this study showed that maintenance was not carried out according to schedule. Lifeboat maintenance was only carried out within 3 months within 1 year. Based on the results Questionnaires from 8 respondents consisting of master, master 1, mate 3, kkm, machinist 3, helmsman, boss, class, obtained the results that the percentage of lifeboat maintenance implementation was 51.6%, which means that the criteria were sufficient and the implementation of the goddess goddess was 50%, which meaning that the criteria are sufficient. From the results of this research it can be concluded that the optimal level of lifeboats and goddesses must be increased in maintenance according to procedures. The obstacle encountered was that during the exercise there was a jam on the lifeboat boats which resulted in the lifeboat not being able to be lowered and damage to the lifeboat engine. Efforts that must be made are to carry out maintenance according to the 1974 SOLAS procedure.
Strategi Penggunaan Cargo Pump sebagai Upaya dalam Menunjang Kelancaran Bongkar Crude Palm Oil di Kapal MT Koan Jeffy Maulidi Feriyanto; Ari Sriantini; Dedy Kristiawan
Populer: Jurnal Penelitian Mahasiswa Vol. 3 No. 4 (2024): Desember: Jurnal Penelitian Mahasiswa
Publisher : Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/populer.v3i4.2603

Abstract

Cargo pumps are very important in the unloading process, especially crude palm oil cargo on tankers. In order for the cargo unloading process to run smoothly, a strategy is needed in the use of cargo pumps. This study aims to find out the factors that cause damage to cargo pumps and the strategy of using cargo pumps so that the process of dismantling crude palm oil in MT Koan can run smoothly. The research method used is qualitative descriptive with data collection techniques through observation and interviews. The results showed that cargo pump 1 operated better than cargo pump 2, with 77% of the operating time. Damage to the cargo pump is caused by leaks in the mechanical seal and clogging of dirt. Routine maintenance on cargo pump 1 is more frequent than cargo pump 2. The cargo temperature of crude palm oil is relatively low ranging from 39-40°C and there is a decrease in temperature at one observation point which causes the texture of the cargo to become very thick, thus interfering with the performance of the cargo pump. Based on the results of data analysis of the results of observations and interviews, it can be concluded that the factors that cause damage to cargo pumps at MT Koan are lack of maintenance, low load temperature and performance differences in both cargo pumps.
Analisis Faktor-Faktor yang Mempengaruhi Stabilitas Kapal di MV. Sumatera Leader Rahman, Muhammad Zainur; Sriantini, Ari; Listriyawati, Nyoman Ardiana
Saintara: Jurnal Ilmiah Ilmu-Ilmu Maritim Vol 9 No 1 (2025): SAINTARA (Maret 2025)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Akademi Maritim Nusantara Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52475/saintara.v9i1.348

Abstract

This study aims to analyze the factors that affect the stability of ships in MV. Sumatra Leader. The research was carried out for 12 months, from 9 February 2023 to 9 February 2024. This research was carried out on a pure car carrier or Ro-Ro ship named MV. Sumatra Leader, owned by NYK Spill Indororo, Ltd. The data analysis technique of this study is qualitative, using a descriptive approach. The subject of the study was five ship crews consisting of the Captain, Chief Officer, Second Officer, Bosun, and Foreman. The data collection technique is in the form of direct observation and interviews with the research subjects. The results of this study show that the factors that affect the ship’s stability are cargo arrangement, cargo space optimization, cargo handling techniques, the presence of ramp doors, ballast arrangements, a good stowage plan, ship drafts, and correct GM calculations. It is recommended to check the clinometer periodically, tie the cargo well and firmly so that it does not shift, arrange the cargo according to the stowage plan, and do GM calculations to get a positive and ideal GM of the ship after the loading is completed to maintain the stability of the ship when sailing.
Co-Authors ABADI Alkharim, Rozzaq Budianto, Tri Dedy Kristiawan Dedy Kristiawan Ebdasari, Ary Dhevi Dwi Eka Endah Suryani Elva Febriana Anggraeny Faisal Akbar Himawan, Zidan Alwi Jeffy Maulidi Feriyanto Kristiawan, Dedy Listriawati, Nyoman Ardiana Listriyawati, Nyoman Ardiana M. Rangga Permana Kusuma Mega Teguh Budiarto Mochamad Cholik Mochamad Cholik Mochamad Firmawan Muhammad Alfin Prasetiya Nyoman Ardiana Nyoman Ardiana Listriawati Prastiwi, Afita Rahman, Muhammad Zainur Ridzwan bin Che’Rus Supangat Supangat Supangat Suryani, Eka Endah Tri Riyanto Yanti, Dyah Agustin Widhi Yusuf Fuad