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All Journal Journal of Education and Learning (EduLearn) Jurnal English Education: Jurnal Tadris Bahasa Inggris Infotekmesin DEVICE Jurnal Maritim Polimarin Jurnal Pengabdian Masyarakat Bhinneka MANGGALI
Deri Herdawan, Deri
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Case Study: Pengaruh Keretakan Shaft Kopling Pompa Kargo Terhadap Kinerja Pompa Kargo Di SPOB Sea World One Khaeroman, Khaeroman; Herdawan, Deri; Zaghlul Nafis, Ragil
Jurnal Maritim Polimarin Vol. 9 No. 2 (2023)
Publisher : PPPM Polimarin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52492/jmp.v9i2.106

Abstract

This article discusses the effect of a cracked clutch shaft on the performance of the gear pump type cargo pump at SPOB Sea World One. Damage was found to the clutch shaft which was indicated by a decrease in the pump flow rate on the ship during bunker service. The aim of this research is to determine the factors that cause clutch shaft cracks, as well as determine the impact of these cracks, and the handling efforts carried out on the clutch shaft. The method used in this research is a qualitative method which produces descriptive data in the form of written explanations. Data collection takes the form of an approach to the research object through direct observation and interviews as well as taking data from the ship. Based on the observations, it was concluded that the impact of the shaft cracking caused noise due to a gap and a drop in pump pressure. And it was found that the factor causing the shaft crack was the lack of implementation of a planned maintenance system on board the ship for the cargo pump, causing the pump to experience over running hours. Turning was carried out as an effort to handle the clutch shaft with an original diameter of 12 cm.
An Analysis of English for Maritime Teaching-Learning Process in Politeknik Maritim Negeri Indonesia Herdiansyah, Ganda; Herdawan, Deri
Jurnal Maritim Polimarin Vol. 10 No. 1 (2024)
Publisher : PPPM Polimarin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52492/jmp.v10i1.112

Abstract

English is still used as a foreign language in Indonesia. Withstanding its status as a foreign language, it describes the situation where students are learning English in order to communicate with other English speakers in the world when the students may be tourists or business people. Due this consideration, the English language has not been used on a daily basis in the contrary, but only at a particular place and occasion like at an English class at school or on business meeting at an international company. This research sets to examine and describe the method and activity used by the lecturer in the teaching-learning process. The research conducted in Teknika class at the third semester of Politeknik Maritim Negeri Indonesia (Polimarin) Semarang. In this research, the researcher used qualitative research. In collecting the data, the researcher used observation, specifically as a nonparticipant observer. After conducting the research and analyzing the data collected through observation, the researcher knew the teaching method used by the lecturer was CBI while the learning activities were IBLL and role play. It can be seen that the lecturer focused on the speaking skill in the teaching-learning process
Polimarlish.id, a game-based learning website to meet the standard marine communication phrases proficiency Sari, Dhesi Wulan; Herdawan, Deri; Kurniawan, Fajar Sari; Marselia, Marselia; Anggoro, Retno
Journal of Education and Learning (EduLearn) Vol 19, No 2: May 2025
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/edulearn.v19i2.21361

Abstract

Previous studies suggested that game learning method could assist students in improving English proficiency. However, Gen Z students in a semi-military maritime vocational school had a lack of motivation to enrich their maritime English mastery because of their many non-academic activities. The goal of this study was to present polimarlish.id as an alternative game learning medium to enhance maritime English phrases, vocabulary, and idioms through interactive game-learning such as matching pictures, matching sounds, jumbled words, and fill-in-the-blank. This website was developed by considering various types of games and details of the user experience, such as giving clear instructions, attaching real pictures, and using a native sound speaker. Therefore, in order to evolve this game-based learning website, the researcher also gained data by taking observations, conducting interviews, and delivering questionnaires. The data was analyzed using a Likert scale. A total of 85.71% of 28 participants agreed that polimarlish.id could enhance their maritime English standard marine communication phrases (SMCP) proficiency.
Pengaruh Quenching Terhadap Sifat Mekanik dan Struktur Mikro Baut Connecting Rod Bekas Untuk Alat Gesek FSW Ari Putranto, Wahyu; Khaeroman; Susanto; Herdawan, Deri; Noviarianto
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2531

Abstract

One method of joining soft metals such as aluminum that is widely used is Friction Stir Welding (FSW). The friction tool is a very important part of FSW. Friction tools are usually made from hardened H13 steel. This research aims to make a friction tool from steel connecting rod bolts used in marine diesel engines. The experimental methods used include FSW tool design, heat treatment of the material at a temperature of 900oC followed by a quenching process with water and salt water cooling media, then continued with material testing (chemical composition test, hardness test, and micrographic test). The test results obtained from the chemical composition test show that the connecting rod bolts include AISI 4145 steel material. The highest hardness value obtained from the connecting rod steel in the saltwater quenching process was 52.67 HRC with a martensite phase, as seen from the micrographic test. Used steel connecting rod bolts from marine diesel engines can be used as FSW friction tool material.
KARAKTERISASI MATERIAL BAJA CONNECTING ROD BEKAS SEBAGAI BAHAN PEMBUATAN ALAT GESEK FRICTION STIR WELDING (FSW) Putranto, Wahyu Ari; Susanto, Susanto Susanto; Khaeroman, Khaeroman; Herdawan, Deri; Noviarianto, Noviarianto Noviarianto; Kiswanto, Heri Kiswanto
Device Vol 15 No 1 (2025): Mei
Publisher : Fakultas Teknik dan Ilmu Komputer (FASTIKOM) UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/device.v15i1.9039

Abstract

Permasalahan umum pengelasan las busur adalah retak saat proses peleburan dan pemadatan, timbulnya porositas, serta hilangnya elemen paduan yang mudah menguap. Penyambungan material lunak dapat dilakukan menggunakan pengelasan aduk gesekan yang disebut Friction Stir Welding (FSW). Alat pengaduk gesekan (Alat FSW) merupakan komponen penting pada pengelasan FSW. Penelitian ini dilakukan beberapa tahapan dengan tujuan menghasilkan alat FSW untuk material aluminium 5083. Studi dilakukan secara eksperimen mencakup desain alat FSW, perlakuan panas dan pengujian material alat FSW dan pembuatan alat FSW. Material dasar alat FSW yang dibuat menggunakan baut connecting rod bekas dari marine diesel engine. Model alat FSW yang dibuat dengan dua jenis pin (silinder berulir dan kerucut berulir). Alat FSW yang dibuat selanjutnya diberikan perlakuan panas suhu 950oC dan diquenching dengan media pendingin air dan oli. Hasil pengujian komposisi kimia menunjukkan baut connecting rod termasuk jenis baja AISI 4145. Hasil pengujian kekerasan nilainya sebesar 52,5 HRC, dan 51,5 HRC dari quenching media air dan oli. Pengujian struktur mikro material tersebut menunjukkan fasa martensit yang sifatnya keras dari proses quenching semua media pendingin. Penelitian ini menunjukkan bahwa material baut connecting rod bisa digunakan sebagai bahan alat FSW setelah diberi perlakuan panas dan quenching dengan media air.
Workshop Inovatif: Strategi Pembelajaran Aktif Berbasis Gamifikasi dan Teknologi untuk Guru SMK Pelayaran Wira Samudera Sari, Dhesi Wulan; Setyoningrum, Ari Ani Dyah; Alimatussa’diyah, Alimatussa’diyah; Aufi, Ahmad Umam; Sirait, Evi; Kurniawan, Fajar Sari; Purwanto, Purwanto; Herdawan, Deri
Jurnal Pengabdian Masyarakat Bhinneka Vol. 3 No. 4 (2025): Bulan Juli
Publisher : Bhinneka Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58266/jpmb.v3i4.183

Abstract

Akumulasi aktivitas di luar kegiatan pembelajaran di sekolah menengah kejuruan pelayaran seringkali menyebabkan kelelahan fisik dan mental yang berdampak pada rendahnya tingkat konsentrasi dan kesiapsiagaan siswa dalam mengikuti proses pembelajaran. Pendekatan pembelajaran aktif menjadi salah satu alternatif untuk mengatasi masalah tersebut. Tim pengabdian Politeknik Maritim Negeri Indonesia melaksanakan kegiatan workshop dengan mengintegrasikan gamifikasi dan teknologi di SMK Pelayaran Wira Samudera Semarang untuk membantu menguatkan kapasitas guru dalam menyajikan pembelajaran aktif dan interaktif. Kegiatan pengabdian kepada masyarakat ini terbagi menjadi 3 tahap yaitu perencanaan, pelaksanaan workshop, dan evaluasi. Perencanaan dilakukan dengan matang dengan mempersiapkan alat dan bahan yang dibutuhkan selama workshop berlangsung. Kegiatan workshop disajikan dengan menerapkan model sharing knowledge, best practice, dan pemberian umpan balik. Selama workshop berlangsung, guru-guru SMK Pelayaran Wira Samudera berpartisipasi aktif menyampaikan ide-ide kreatif dan tanya jawab terkait strategi pembelajaran berbasis gamifikasi. Hasil kegiatan pengabdian kepada masyarakat ini menunjukkan bahwa guru-guru SMK Pelayaran Wira Samudera memiliki komitmen tinggi untuk merancang kegiatan pembelajaran yang aktif dan interaktif dengan mengintegrasikan gamifikasi dan teknologi. Program lanjutan perlu yang intensif dan berkelanjutan perlu diterapkan untuk menguatkan kompetensi guru-guru SMK Pelayaran Wira Samudera.
THE EFFECTIVENESS OF INFORMATION GAP METHOD TO TEACH SPEAKING VIEWED FROM STUDENTS’ CREATIVITY Herdawan, Deri
English Education: Jurnal Tadris Bahasa Inggris Vol 8 No 1 (2015): English Education: Jurnal Tadris Bahasa Inggris
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ee-jtbi.v8i1.512

Abstract

The objective of this experimental research is to reveal the effectiveness of Information Gap Method to teach speaking to high school students in Tumijajar. This study involves three variables. Two independent variables are teaching methods (Information Gap Method and Audio Lingual Method) and students’ level of creativity. The dependent variable is speaking skill. The research examines the effect of the two independent variables on the dependent variable. The samples were two classes which consist of 30 students of class X2 as the experimental class and 30 students of class X4 as the control class. The instruments used to gather data in this research cover speaking test and creativity test. The data were analyzed using ANOVA and Tukey test. From the analysis, it reveals that: (1) Information Gap Method is more effective than Audio Lingual Method to teach speaking; (2) the students having high level of creativity have better speaking skill than those having low level of creativity; and (3) there is an interaction between teaching methods and the students’ level of creativity to teach speaking. While Information Gap Method is effective to teach speaking, to implement the methods, a teacher must consider about the students’ level of creativity. 
An Analysis on Indonesian-English Abstract Translation by Google Translate Herdawan, Deri
English Education: Jurnal Tadris Bahasa Inggris Vol 13 No 2 (2020): English Education: Jurnal Tadris Bahasa Inggris
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ee-jtbi.v13i2.7701

Abstract

Many international journals require authors to translate their articles into English, mostly the abstracts. The advancement of technology has paved the way to the invention of machine-translators, one of which is Google Translate. This research seeks to investigate (1) what translation method is currently used by Google Translate, and (2) what type of errors are committed by Google Translate in Indonesian-English abstract translation. A descriptive qualitative design was used in this research. Documents in the form of 15 abstracts (ca. 3500 words) were used in data analysis. The results showed that Google Translate implemented the literal translation method. In doing its translation, it committed several linguistic errors and many translation errors. Detailed results were presented and discussed in the coming sections, followed by recommendations for further research.
ESP: A Needs Analysis of Maritime English at Polimarin Herdawan, Deri; Nindita, Kirtyana; Setyoningrum, Ari Ani Dyah
English Education: Jurnal Tadris Bahasa Inggris Vol 14 No 2 (2021): English Education: Jurnal Tadris Bahasa Inggris
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ee-jtbi.v14i2.9812

Abstract

As an archipelagic country, Indonesia has long been known for its marine potential. This potential comes with new challenges, one of them being language problem. In this regard, English shows its prominent role as the international language to bridge communications. This research provided a needs analysis to identify the “necessities”, “lacks”, and “wants” in relation with English usage in maritime sector, specifically for those conducting internship at international ships. A qualitative approach and a descriptive design were applied in this research. The respondents consisted of 19 students of Polimarin who had completed internship at international ships, selected through total sampling technique. Their responses were collected by a questionnaire, complemented by interview. The collected data were then processed through a model consisting of four stages; data collection, data reduction, data display, and conclusion drawing. The “necessities” analysis revealed speaking and vocabulary as the most needed language skill and component. The “lacks” analysis showed that the syllabus used pays attention to English language skills and components evenly and that some respondents were underprepared before doing internship. The “wants” analysis came up with the simple present tense and the simple past tense as the most wanted tenses to master, pronouns as the most wanted grammatical feature and passive voice as the least wanted, all language functions evenly wanted, and group discussion as the most preferred learning activity. In conclusion, syllabus revision is due to improve the quality of English learning by accommodating the students’ “necessities”, “lacks”, and “wants”. Key words:ESP, Maritime English, Needs Analysis
Learners’ Attitude, Motivation, and Habit towards Reading in Second Language Rahmawati, Istiqomah Nur; Herdawan, Deri
English Education: Jurnal Tadris Bahasa Inggris Vol 15 No 1 (2022): English Education: Jurnal Tadris Bahasa Inggris
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ee-jtbi.v15i1.11361

Abstract

The key in language learning and acquisition is exposure towards said language. The most feasible exposure for English learners in the EFL setting is reading due to practicality, continuity, and suitable sources. Their reading success depends on their attitude, motivation, and habit. This research sought to determine the state of learners’ attitude, motivation, and habit toward reading in English. This qualitative exploratory research was initiated in 2020, taking place at the State Islamic University of Raden Intan Lampung (UIN RIL) and the Indonesian State Maritime Polytechnic (Polimarin). The research population included learners registered in those two universities, with 88 (51.8%) from UIN RIL and 82 (48.2%) from Polimarin selected through quota sampling. A 20 items-questionnaire, complemented by some interview sessions, were used to collect the research data. The collected data were then processed through a model consisting of four stages; data collection, data reduction, data display, and conclusion drawing. The results revealed that the learners showed a generally favourable attitude toward reading in English. This stemmed from good responses shown from all factors of English reading attitude. It should be noted that the previous reading experience factor was the most unfavourable one due to poor start of reading activity. Meanwhile, the learners showed mixed responses regarding their motivation toward reading in English. Two factors, access to materials and English proficiency, were the ones that need further attention, as most learners still lacked in that regard. Ultimately, the learners’ reading habits were still deficient in their native language and even more so in their English reading habits. Keywords: Attitude, Habit, Motivation, Reading, Second Language.  
Co-Authors Ahmad Umam Aufi Akhmad Nuriyanis Alimatussa’diyah, Alimatussa’diyah Anggoro, Retno Herdiansyah, Ganda Istiqomah Nur Rahmawati Khaeroman Khaeroman, Khaeroman Kirtyana Nindita Kiswanto, Heri Kiswanto Kurniawan, Fajar Sari Marselia, Marselia Noviarianto, Noviarianto Purwanto Purwanto Rahayuningsih, Mahsunah Etik Sari, Dhesi Wulan Setyoningrum, Ari Ani Dyah Sirait, Evi Solly Aryza Susanto, Susanto Susanto Suyono Suyono Wahyu Ari Putranto Wulan Sari, Dhesi Zaghlul Nafis, Ragil