PERAWATAN SISTEM PELUMASAN MESIN UTAMA PADA KAPAL KM. MUTIARA SENTOSA II

Penelitian ini bertujuan untuk mengetahui bagaimana perawatan sistem pelumasan mesin utama pada kapal. Fungsi pelumasan pada mesin utama adalah mengurangi tingkat keausan pada benda yang saling bergerak dan bergesekan sekaligus mengurangi timbulnya panas yang berlebihan. Lokasi Penelitian ini di engine room Kapal KM. Mutiara Sentosa II milik PT.Atosim Lampung Pelayaran. Sistem pelumasan yang dipakai di KM. Mutiara Sentosa II adalah jenis pelumasan karter kering, dan minyak pelumas yang dipakai adalah jenis dari brand, Caltex Dello 1000 Marine dengan SAE 40W. Perawatan sistem pelumasan yang dilaksanakan di kapal KM. Mutiara Sentosa II terdiri dari perawatan berkala diantaranya: (1) memeriksa tangki harian minyak pelumas secara rutin (2) membersihkan saringan minyak pelumas secara rutin, (3) membongkar dan membersihkan auto filter dan pendinginannya secara berkala, (4) memeriksa kualitas minyak pelumas setiap 3 bulan sekali, (5) memeriksa saluran pipa minyak pelumas, (6) memeriksa secara rutin terhadap cooler pendingin dari terjadinya kebocoran minyak pelumas

Aljabar Lintasan Leavitt Semiprima

Suatu graf dapat direpresentasikan sebagai aljabar lintasan dan jika graf tersebut diperluas dapat didefinisikan suatu aljabar lintasan Leavitt, yang pada kenyataannya merupakan Z-aljabar bertingkat. Dalam tulisan ini akan dibahas mengenai sifat semiprima pada aljabar lintasan dan aljabar lintasan Leavitt yang berlaku dalam sebarang graf. Serta menyelidiki kaitan antara semiprima pada aljabar lintasan dengan semiprima pada aljabar lintasan Leavitt.Kata Kunci: Graf Berarah, Aljabar Lintasan, Aljabar Lintasan Leavitt, Aljabar Linta-san Leavitt Semiprima

Perawatan Mesin Diesel Generator Pada Kapal KN.SAR SADEWA 231

A generator or alternator is a copper coil or coil consisting of a stator (static coil) and a rotor (rotating coil). The main function of the generator on board is to supply the electrical power needs on board. One of the disturbances that occur in generators is often the heat of the generator (overheating) and also the absence of electric voltage on the generator. The purpose of this study is to optimize maintenance on the generator maintenance system on KN ships. SAR SADEWA 231. This research is qualitative descriptive research. This research was on the engine of the KN SAR Sadewa 231 ship belonging to the Semarang Search and Rescue (SAR) Search and Rescue Office. The results showed that the generator on the main engine of the KN Ship. SAR SADEWA 231 uses an Alternating current (AC) generator power generation system. The implementation of maintenance of the generator system on the ship is good. The generator system parts that are treated include the stater dynamo, alternator, fuel filter, air filter, cooler, nozzle, bosh pump, turbocharge, muffler, and main board switch.Generator atau alternator merupakan kumparan atau gulungan tembaga yang terdiri dari stator (kumparan statis) dan rotor (berputar kumparan). Fungsi utama generator diatas kapal adalah untuk menyuplai kebutuhan daya listrik di kapal. Salah satu gangguan yang yang terjadi pada generator adalah sering panasnya generator (overheating) dan juga tidak keluarnya tegangan listrik pada generator. Tujuan dari penelitian ini adalah untuk melakukan optimasi perawatan tentang sistem perawatan generator pada kapal KN. SAR SADEWA 231. Penelitian  ini merupakan penelitian deskriptif kualitatif. Penelitian ini berada di engine Kapal KN SAR Sadewa 231 milik Kantor Pencarian dan Pertolongan Search and Rescue (SAR) Semarang. Hasil penelitian menunjukkan bahwa generator pada mesin utama Kapal KN. SAR SADEWA 231 menggunakan sistem pembangkit listrik generator berjenis alternating current (AC). Pelaksanaan perawatan sistem generator di kapal sudah baik. Bagian sistem generator yang dirawat meliputi dinamo stater, alternator, fuel filter, filter udara, cooler, nozzle, bosh pump, turbocharge, muffler, switch main board

Moodle Virtual Class Effectivity toward Cadets’ Learning Motivation and Speaking Ability

This research aimed at identifying the effectivity of applying Moodle virtual class on cadets’ learning motivation and cadets’ motivation in speaking ability in the pandemic of Covid-19. Moodle is one of open source of e-learning software used in lecturing process. The research sample was Studi Nautika Cadets of Sekolah Tinggi Maritim Yogyakarta who were taking Maritime English II class. This research is a descriptive quantitative research. It employed online questionnaire as data collecting method. This study resulted that Moodle usage achievement effectivity on cadets’ learning motivation in Maritime English II subject gained 80.83% agreement. Furthermore, it the effectivity of using Moodle in Maritime English II resulted in 90.63% in Cadets’ motivation in speaking

PENINGKATAN KOMPETENSI PROFESIONAL GURU MELALUI PELATIHAN PENGGUNAAN MEDIA ICT

ABSTRAKTujuan utama pengabdian kepada masyarakat (PKM) ini yaitu untuk meningkatkan kompetensi guru dalam mengelola kelas online melalui pelatihan penggunaan media information and communications technology (ICT) bagi guru-guru PAUD IT dan SD IT Harapan Bunda. Media ICT yang dipilih oleh guru-guru PAUD IT dan SD IT Harapan Bunda adalah berbasis Google Forms dan Google Meet. Pelatihan dilakukan dengan pemberian materi, diskusi/tanya jawab, dan praktek langsung pembuatan media ICT yang digunakan. Untuk mengetahui keberhasilan kegiatan pengabdian ini, dilakukan evaluasi dengan pengisian angket respon terhadap kegiatan PKM, angket kepuasan serta angket kompetensi profesional guru. Dari hasil angket menunjukkan rata-rata persentase respon peserta pelatihan terhadap pelaksanaan PKM ini menjawab sangat setuju sebesar 70,7%. Tingkat kepuasan peserta pelatihan dari segi materi, penyampaian materi, proses diskusi serta pelatihan individu adalah 93,3%. Sedangkan sekitar 73,3% menyatakan mengalami peningkatan terkait kemampuan menggunakan media ICT dan  pengelolaan kelas online. Dari hasil pelatihan juga disarankan agar guru-guru di masa pandemi ini lebih  memahami  dan  menggunakan  media ICT agar pembelajaran  lebih efektif dan menyenangkan ­ Kata kunci: kompetensi; media ict; pelatihan; profesional ABSTRACTThe main objective of community service is to increase teacher competence through training in the use of ICT media for PAUD IT and SD IT Harapan Bunda teachers. The ICT media chosen by PAUD IT and SD IT Harapan Bunda are based on Google Forms and Google Meet. The training was carried out by providing materials, discussion / question and answer, and direct practice of making the ICT media used. In addition to the introduction of ICT media, this training also conducted an assignment to better understand the use of online ICT media. Reliable in this service activity, evaluation is carried out by filling out questionnaires and direct interviews. The results of the questionnaire showed that the average proportion of training participants on the implementation of this community service answered strongly agree at 70,7%. The level of satisfaction of the training participants in terms of material, material delivery, discussion process, individual training was 93,3%. Meanwhile, around 73,3% stated that the increase was related to the ability to use ICT media and manage online learning. From the results of the training, it is also recommended that teachers during this pandemic better understand and use ICT media so that learning is more effective and fun. Keywords: competence, media ict, training, professiona

PENGENALAN TEKNOLOGI NAVIGASI BIDANG MARITIM MELALUI VIRTUAL OUTING UNTUK ANAK-ANAK JOGJAKARTA MONTESSORI SCHOOL

ABSTRAKPengabdian masyarakat ini bertujuan untuk mengenalkan dan mensosialisasikan inovasi teknologi navigasi dalam  bidang  maritim melalui virtual outing untuk anak-anak Jogjakarta Montessori School Elementary Program. Peserta yang  dilibatkan dalam  kegiatan pengabdian  ini  yaitu  Guru-guru SD dan anak-anak kelas 4,5 dan 6. Rangkaian kegiatan ini meliputi 3 tahapan yaitu: Tahap persiapan, tahap pelaksanaaan dan tahap evaluasi. Tahap persiapan meliputi  persiapan alat-alat navigasi yang dimiliki oleh Sekolah Tinggi Maritim Yogyakarta dan pembuatan materi.  Tahap  pelaksanaan meliputi pembukaan, pemaparan materi dan penjelasan alat-alat navigasi di laboratorium simulator, kemudian dilanjutkan dengan diskusi dan tanya jawab peserta yang hadir. Pada tahap evaluasi, peserta mengisi kuesioner melalui google form, hasil kuesioner yaitu  meliputi: aspek  presentasi  yang  disampaikan  pemateri  memiliki  nilai  kepuasan sebesar 76.27%,  aspek  atensi  yang disampaikan  oleh  pemateri terhadap pengenalan alat-alat navigasi mempunyai nilai kepuasan sebesar 83.05%,  aspek  motivasi tanya jawab mempunyai nilai kepuasan sebesar 88.14%,  rata-rata semua aspek mempunyai nilai kepuasan sebesar 82.48 % Kata kunci: teknologi; navigasi; maritim; virtual outing. ABSTRACTThis community service aims to introduce and socialize navigation technology innovations in the maritime field through virtual outings for the children of the Elementary Program in the Yogyakarta Montessori School. The participants involved in this service activity are elementary school teachers and children class 4,5 and 6. This series of activities includes 3 stages, namely: the preparation stage, the implementation stage and the evaluation stage. The preparation stage completes the preparation of navigation tools owned by the Sekolah Tinggi Maritim Yogyakarta and the manufacture of materials. The implementation stage of the opening, the presentation of the material and navigational tools was followed by discussion and question and answer from the participants present. At the evaluation stage, participants filled out a questionnaire through the google form, the results of the questionnaire include: aspects of the presentation delivered by the speaker have a satisfaction value of 76.27%, aspects of attention submitted by speakers to the introduction of navigation tools have a satisfaction value of 83.05%, aspects of question and answer motivation have a satisfaction value of 88.14%, on average all aspects have a satisfaction value of 82.48 %. Keywords: technology; navigation; maritime; virtual outing

Competence Based Training (CBT) Teknik Pengelasan Untuk Meningkatkan Keterampilan Taruna Teknika Kapal Niaga

The high demand for competence in the world of the shipping industry today demands an increase in the skills of the Commercial Ship Engineering Study Program cadets, especially in the field of welding techniques. This indicates that Taruna's welding technique skills are still low. This Community Service Activity aims to improve welding technique skills and welding understanding for cadets. The Community Service Activity method uses the Competence-Based Training (CBT) Model, which combines theory, demonstration, and practicum. Evaluation is done by doing a pre-test, and post-test. CBT participants are 11th grade cadets of SMK Pelayaran Muhammadiyah 1 Kalasan Yogyakarta, with the expertise of Commercial Ship Engineering, with a total of 25 cadets. The results of the evaluation of Community Service were an increase of 60% in theory mastery, an increase of 64% in understanding demonstrations, and an increase of 84% in the skills of cadets in welding practic

ANTISIPASI RISIKO KEBAKARAN MELALUI PELATIHAN PENGGUNAAN ALAT PEMADAM API PORTABLE

ABSTRAKTujuan dari pengabdian ini adalah untuk meningkatkan pengetahuan dan keterampilan masyarakat dalam penanggulangan risiko kebakaran di daerah pemukiman padat penduduk melalui pelatihan  penggunaan alat pemadam api portable. Pengabdian ini dilaksanakan di Desa Nogotirto, Gamping, Sleman. Peserta Pelatihan ini berjumlah 20 orang. Kegiatan pengabdian masyarakat dilaksanakan melalui 5 tahap, yaitu (1) Pelaksanaan pretest; (2) Pemberian materi melalui metode ceramah dan tanya jawab; (3) Demonstrasi penggunaan alat pemadam api portable; (4)  Praktik individu menggunakan alat pemadam api portable; (5) Pelaksanaan Posttest. Capaian peningkatan pengetahuan dan keterampilan masyarakat diukur menggunakan kuesioner pretest dan posttest, data diolah dan diuji dengan uji paired T-test. Adapun hasil dari pengabdian ini adalah adanya peningkatan pengetahuan dan keterampilan masyarakat dalam penanggulangan risiko kebakaran, disamping itu adanya perbedaan rata-rata tingkat pengetahuan dan keterampilan penanggulangan kebakaran sebelum dan setelah pelaksanaan kegiatan pelatihan. Kata kunci: kebakaran; pelatihan; pemadam api; portable ABSTRACTThis service aims to increase the knowledge and skills of the community in managing fire risks in densely populated residential areas through training in the use of portable fire extinguishers. This service was carried out in Nogotirto Village, Gamping, Sleman. The number of participants in this training is 20 people. Community service activities are carried out in 5 stages, namely (1) Pretest implementation; (2) Providing material using the method of lecture and question and answer; (3) Demonstration of the use of portable fire extinguishers; (4) Individual practice using portable fire extinguishers; (5) Implementation of Posttest. The achievement of increasing the knowledge and skills of the community was measured using a pretest and posttest questionnaire, the data was processed and tested using the paired T-test. The result of this service is an increase in the knowledge and skills of the community in managing fire risk in densely populated residential areas, in addition to that, there is a difference in the average level of knowledge and skills in fire management before and after the implementation of training activities. Keywords: fire; training; fire extinguisher; portabl

Path Analysis in the Application of Occupational Health and Safety in the Ship Machinery Laboratory

This study aims to analyze the influence of learning attitudes, learning knowledge and learning motivation on the Application of Occupational Health and Safety using path analysis. The method used in this study is the quantitative method with a correlational research type. The population in this study is cadets of the Ship Machinery Study Program, at Yogyakarta Maritime High School. Sample The selection of research samples is carried out using the saturated sampling method or census method, which is all members of the sample population. The data analysis method uses path analysis with the Smartpls3 SEM model. Based on the results of the study, there was a significant positive direct influence of learning attitudes on the learning motivation of cadets. Learning attitudes have a positive and significant effect on the Application of Occupational Health and Safety (OHS) in the Ship Machinery Laboratory. Furthermore, there is a significant positive direct influence of learning knowledge on the learning motivation of cadets. Learning knowledge has a positive and significant effect on the Application of Occupational Health and Safety (OHS) in the Ship Machinery Laboratory. Learning motivation has a positive and significant effect on the Application of Occupational Health and Safety (OHS) in the Ship Machinery Laboratory

PELATIHAN EDITING VIDEO BERBASIS APLIKASI KINEMASTER UNTUK MENINGKATKAN KOMPETENSI DIGITAL GURU

ABSTRAKTujuan diselenggarakan kegiatan Pengabdian Kepada Masyarakat (PKM) ini adalah untuk mengadakan pelatihan pembuatan video pembelajaran dengan editing video berbasis aplikasi KineMaster selama pandemi Covid-19 dalam rangka meningkatkan kompetensi digital guru. PKM ini dilaksanakan di  SMA IT Baitussalam, Prambanan, Yogyakarta dengan peserta sebanyak 16 orang. Metode pelaksanaan kegiatan PKM ini adalah dengan metode Participatory Action Research (PAR). Metode PAR (Participatory Action Research) terdiri dari   tahapan   perencanaan   (plan),  tindakan  (action), pengamatan (observe) dan refleksi (reflection). Hasil dari kegiatan PKM ini adalah dalam teknik penggunaan/ pengeporasian aplikasi KineMaster sebanyak 62.5% guru menyatakan mudah diterapkan dalam pembelajaran dan sebanyak 81,25% guru  merasakan  kemanfaatan dan mengalami peningkatan kompetensi digital. Kata kunci: kinemaster; kompetensi digital; video ABSTRACTThe purpose of this Community Service activity is to hold training on making learning videos by editing videos based on the KineMaster application during the Covid-19 pandemic in order to improve teacher digital competence. This Community Service was held at SMA IT Baitussalam, Prambanan, Yogyakarta with 16 participants. The method of implementing this Community Service activity is the Participatory Action Research (PAR) method. The PAR (Participatory Action Research) method consists of the stages of planning, action, observation, and reflection. The results of this Community Service activity are in the use/corporation technique of the KineMaster application as many as 62.5% of teachers stated that it was easy to apply in learning and as many as 81.25% of teachers felt the benefits and experienced an increase in digital competence. Keywords: kinemaster; digital competence; vide