Kondisi degradasi lingkungan dan ketimpangan pembangunan pada akhirnya melahirkan konsep Blue Economy yang mana salah satu sektornya adalah wisata bahari yang berkontribusi besar dalam meningkatkan pendapatan masyarakat dan negara. Akan tetapi, pembangunan pariwisata yang ada di berbagai daerah belum tentu menjamin kesejahteraan masyarakat lokal destinasi wisata, termasuk di Karimunjawa. Maka dari itu, upaya pembangunan pariwisata di Karimunjawa perlu direformulasi sesuai dengan prinsip-prinsip dan konsep Blue Economy. Penelitian ini bertujuan untuk menganalisis pembangunan pariwisata berkelanjutan di Karimunjawa dengan pendekatan Blue Economy. Penelitian ini menggunakan pendekatan kualitatif-kuantitatif (mix method). Sumber data penelitian terdiri atas sumber data primer dan sekunder yang diperoleh dengan metode observasi partisipatif, wawancara, dan dokumentasi. Adapun analisis data dilakukan dengan metode analisis SWOT dan teknik analisis interaktif. Hasil penelitian menunjukkan bahwa pembangunan pariwisata di Karimunjawa harus diarahkan pada strategi Grow and Build dan atau stretegi Expansion. Pembangunan ini dapat mengkolaborasikan lima actor utama yaitu pemerintah, bisnis, masyarakat, akademisi, dan Lembaga swadaya masyarakat (LSM) dalam konsep pentahelix.

Dunia digital yang terus berkembang menyoroti pentingnya desain antarmuka pengguna (UI) dan pengalaman pengguna (UX). Namun, kurikulum di Sekolah Menengah Kejuruan (SMK) sering kali tidak memadai dalam menangani masalah kritis ini. Kegiatan pengabdian masyarakat ini bertujuan untuk membekali siswa SMK, khususnya di SMK Negeri 1 Air Joman dengan keterampilan desain UI/UX melalui instruksi yang berfokus pada praktik. Kami mulai dengan menentukan kebutuhan siswa, kemudian kami membahas prinsip-prinsip desain UI/UX, diikuti dengan proses pembuatan Mockup UI dan prototype menggunakan Figma, dan diakhiri dengan mereview hasil desain dari proyek mereka. Kami menggunakan pre-test, post-test, observasi praktis, dan kuesioner kepuasan peserta untuk mengukur keberhasilan. Akibatnya, nilai rata-rata peserta meningkat sebesar 70%, dan hasilnya menunjukkan bahwa para siswa puas dengan materi dan metode pengajaran. Pelatihan ini meningkatkan pemahaman konseptual siswa, kecakapan teknis, dan kemampuan untuk menghadapi tantangan di tempat kerja kreatif digital. Ini adalah pernyataan sederhana bahwa pendekatan pembelajaran praktis sangat efektif dalam dalam mengasah kemampuan vokasional di bidang desain digital.

This study aims to design and build a hydraulic system capable of operating hatch opening and closing automatically and manually, with the application of Internet of Things (IoT) technology to monitor and control the system remotely. This system is designed to improve efficiency and ease of hatch operation on ships or other industrial applications, as well as prevent fires in cargo due to several factors such as unintentional negligence of the ship's crew and also weather factors with increasing temperatures. Where the automatic system uses a rain sensor to optimize time and energy, while manual control remains available as a backup option. This design involves the integration of hydraulic actuators, rain drop sensors, microcontrollers, and IoT communication modules that allow users to control and monitor the position of the hatch through a web-based application or mobile device. In compiling this scientific paper, researchers use experimental methods. This study shows the results that testing will be carried out directly by researchers, by testing the performance of the prototype of the automatic and manual hatch opening and closing hydraulic system design tool based on IoT by testing the effectiveness of the control system and sensor performance. In conclusion, this system successfully combines hydraulic and IoT technology to create an efficient, safe, and easy-to-use solution in practical applications.

Efficient and accurate fuel management systems are becoming increasingly important as energy needs and operational complexity increase in various industrial sectors. This study aims to design and implement a fuel flow monitoring and control system using a variable control valve. This system allows real-time monitoring of the level and flow of fuel in the service tank on the ship, as well as automated control. In its implementation, ultrasonic sensors, control valves are combined with LM2596 connected to Arduino nano for data collection, analysis and visualization. The test results show that this system is able to provide accurate data on the flow and level of fuel in the service tank on the ship by displaying the measurement results on the LCD and providing warnings via a buzzer. The LCD display shows the reading of the fuel level and valve opening in the tank. At a fuel level of 0 - 25% the valve will open 100% and requires an average filling time of 25 seconds, At a fuel level of 25% - 50% the valve will open 75% and requires an average filling time of 27 seconds, At a fuel level of 50 - 75% the valve will open 50% and requires an average filling time of 30 seconds, At a fuel level of 75 - 99% the valve will open 25% and requires an average filling time of 32 seconds.

Berdasarkan hasil observasi dan wawancara di kelas X MA Walisosngo Kayen, Kabupaten Pati, Jawa Tengah diperoleh informasi bahwa para siswa kesulitan memahami materi fenomena litosfer. Rata-rata hasil belajar siswa masih di bawah kriteria ketuntasan minimal. Salah satu upaya mengatasi kesulitan yang dihadapi adalah pemilihan bahan ajar yang mendukung proses pemahaman materi. Modul digital berbasis Google Sites merupakan bahan ajar berbasis website dan memuat elemen multimedia. Pemanfaatan modul digital selaras dengan kurikulum merdeka yang berpusat pada siswa dan integrasi teknologi digital dalam proses pembelajaran. Penelitian ini bertujuan untuk menganalisis proses pembelajaran menggunakan modul digital Google Sites, menganalisis hasil belajar siswa dan mengukur tingkat efektivitas modul digital untuk meningkatkan hasil belajar siswa. Metode penelitian yang digunakan adalah pendekatan kuantitatif dengan model pre-experimental dan one group pretest-posttest design. Teknik pengumpulan data meliputi tes, angket, observasi, dan dokumentasi. Teknik analisis data yang digunakan adalah n-gain, paired sample t-test, dan deskriptif persentase. Hasil penelitian menunjukkan modul digital Google Sites layak digunakan dengan skor validItas 78,5% (layak), hasil uji n-gain mendapat hasil 0,67 (sedang) sehingga modul digital Google Sites dinyatakan cukup efektif, sedangkan pada indikator aktivitas belajar memperoleh rata-rata skor 81,7% (baik, dan untuk respon siswa memperoleh 78,2% (baik). Diperlukan peningkatan aktivitas oral pada modul digital.

This research focuses on designing the shortest path to a docking station for the charging system of a robotic coffee delivery system on a cruise ship. With the growing demand for more efficient and innovative services in the maritime industry, autonomous robots are increasingly being used for tasks such as delivering coffee to passengers. However, these robots face unique challenges in the confined and dynamic environment of a ship, particularly in terms of power management and recharging. The goal of this research is to create an efficient charging system using a power bank and Internet of Things (IoT) technology to minimize downtime and ensure continuous robot operation with minimal human intervention. By utilizing sensors such as the MPU 6050 for motion detection and the TCS 3200 for color recognition, the robot can autonomously navigate the shortest path to the docking station for charging, while IoT enables real-time battery capacity monitoring. This helps reduce the time spent on non-operational tasks and improves the overall efficiency of the system. This research not only enhances the robot’s ability to operate autonomously in complex environments but also provides a flexible and scalable solution for the maritime industry to integrate advanced robotics into their service operations. The results of this study contribute to the increased adoption of autonomous systems in the maritime sector, particularly in improving service efficiency on board, reducing the need for human intervention, and ensuring smoother service delivery to passengers.

This research discusses the urgency of mastering English in the recruitment process of prospective sailors at PT. Equinox Bahari Utama. In the era of globalization and the international maritime industry, proficiency in English has become an absolute requirement for sailors to meet communication standards on board. The objectives of this research are: (1) to determine the recruitment criteria standards for prospective sailors at PT. Equinox Bahari Utama, and (2) to understand the strategies of prospective sailors in mastering English for successful recruitment at PT. Equinox Bahari Utama. This research uses a descriptive qualitative method with data collection techniques through observation, interviews, and documentation during field practice in the Recruitment Division of PT. Equinox Bahari Utama. The research results show that English is a determining factor in all stages of the selection process, from interviews to online tests (Marlins and CES). The SWOT analysis reveals that the company's main strength is the implementation of high standards for English proficiency, but challenges remain in the form of a lack of training. The strategies used by prospective sailors to improve their English proficiency include courses, reading ship safety manuals, speaking practice, and interview simulations.

Kegiatan Pengabdian kepada Masyarakat ini bertujuan untuk meningkatkan kapabilitas digital masyarakat Desa Teluk Dalam melalui pengembangan teknologi. Desa ini, yang terletak di wilayah terpencil, menghadapi tantangan dalam pemanfaatan teknologi digital karena keterbatasan infrastruktur dan pengetahuan. Dalam upaya ini, berbagai kegiatan dilaksanakan, mulai dari survei awal untuk mengidentifikasi kebutuhan masyarakat, pelatihan dasar penggunaan teknologi digital, hingga pengenalan platform e-commerce dan pembuatan konten digital untuk pemasaran online. Pendampingan dan monitoring pasca pelatihan juga dilakukan untuk memastikan penerapan ilmu yang telah diperoleh serta memberikan dukungan lanjutan. Hasil dari kegiatan ini menunjukkan peningkatan signifikan dalam literasi digital masyarakat, yang kini lebih terampil menggunakan perangkat digital untuk kebutuhan sehari-hari serta berpartisipasi dalam ekonomi digital. Adopsi teknologi dalam kegiatan ekonomi lokal, seperti usaha mikro dan UMKM, juga mengalami peningkatan, membuka peluang baru bagi pertumbuhan ekonomi desa. Secara keseluruhan, program ini berhasil mencapai tujuannya dan diharapkan dapat memberikan dampak jangka panjang yang positif bagi kemandirian ekonomi dan perkembangan Desa Teluk Dalam.

The storage space for CO2 gas cylinders is inside the ship's accommodation, so there is a risk of danger if a leak occurs because the ship's accommodation has poor air circulation. This research is devoted to removing dangerous gases from the room. This research designs and modifies a tool that can detect CO2 levels and can provide a danger signal to the surroundings. This modification uses a Raspberry Pi Pico W microcontroller. This research method uses system design, a series of tools with wiring design and uses 2 test plans, namely: testing static and dynamic testing.  Testing the precision of the sensor by reading the CO2 leak detector using a CO2 measuring instrument obtained an average error value of 3.5%. The error value is still categorized as a safe difference value and the prototype works according to the expected function. Testing the function of the tool results in values ??for the MQ-135 buzzer and exhaust fan sensors which will turn on if the CO2 level is above 600 ppm in accordance with the safe threshold for CO2 levels in the air which has been set in the program. Telegram request bot testing can work well as expected. Testing the Telegram Receive bot can work well as expected. However, for testing Telegram bots, requests and receives are influenced by the internet network.

The primary focus of this research was to create a Smart Count of Vehicle Loading Prototype for ships, with an emphasis on monitoring and tallying vehicles boarding and disembarking from ships based on their weight. Microcontrollers, such as the ESP32, were utilized for the counting process and to determine if the ship's cargo weight exceeded its maximum capacity. The main objective was to prevent overloading on ships, which could lead to accidents during voyages or while vehicles were being loaded onto the ship. To achieve this goal, weight and distance sensors were installed on the ship and controlled by the microcontroller, allowing for accurate monitoring of the quantity and categories of vehicles being loaded. After designing and testing this prototype device, it has become a new technological innovation that makes monitoring the weight and quantity of cargo on ships easier and more efficient. This is supported by the fact that each sensor's readings can work well with an average error rate below 2%. Additionally, the maximum communication range between the Blynk IoT application and the ship system can reach up to 20 meters.