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Pandemi Covid-19 yang ditetapkan oleh WHO pada tanggal 9 maret 2020 merupakan dorongan terkuat program pengabdian masyarakat ini dilakukan. Sektor ekonomi, sosial, dan pendidikan pun terdampak akibat pandemi Covid-19, khususnya di Indonesia. Sebelum vaksin atau terapi pengobatan ditemukan untuk melawan Covid-19, masyarakan hanya bisa melakukan pencegahan pemutusan rantai penyebaran virus dengan memahami dan melaksanakan protokol kesehatan yang dianjurkan pemerintah. Anjuran pemerintah untuk menerapkan pola hidup bersih dan tetap dirumah berdampak pada sebagian kelompok masyarakat untuk membeli bahan pokok dan alat kesehatan khususnya masker dan hand sanitizer dengan berlebihan. Pembelian dalam jumlah masif menyebabkan ketersediaan barang tersebut menjadi sedikit sehingga mengakibatkan harga jual menjadi mahal. Sesuai dengan permasalahan tersebut, “Tim Pengabdian Masyarakat PPNS” melakukan kegiatan pengabdian masyarakat berupa Pelatihan Pembuatan Hand Sanitizer di lingkungan SMK Negeri 4 Surabaya dalam menyikapi Pandemi Covid-19 untuk sekolah berkelanjutan. Metode dalam penelitian ini dengan cara observasi dan sosialisasi tetang wabah pandemi Covid-19 terhadap Kepala Sekolah, Guru serta Karyawan SMK Negeri 4 Surabaya, yang kemudian dilanjutkan dengan kegiatan pelatihan secara offline dan daring. Kegiatan ini diakhiri dengan evaluasi kegiatan serta memberikan rekomendasi sarana sekolah untuk memutus penyebaran rantai Covid-19.  Pelatian ini berdampak positif terhadap lingkungan SMK Negeri 4 Surabaya, perubahan ini terlihat dari protokol kesehatan yang berlaku di sekolah, serta dari segi ekonomi dapat menekan alokasi dana untuk pembelian produk hand sanitizer.

Maintaining the quality of transportation services and reducing operational costs are some of the problems in shipping companies. This problem can be solved by several solutions. One of them is a reliable machine alarm monitoring and operation system. This study aims to provide a practical design of the ship's auxiliary engine start-stop control system and alarm system. This study uses an experimental method with a descriptive explanation of the observations. The test results show that this system is able to provide a simple, inexpensive, and efficient engine alarm system design to develop this technology for shipping companies. The PLC used is suitable for controlling this system because of its fast response. In addition, the utilized HMI can communicate efficiently with the monitoring system showing the machine parameter interface directly. Direct application of the system has been created provides technology development solutions for monitoring and controlling systems auxiliary machines for shipping companies to reduce operational cost

Forecasting is a method used to estimate a situation in the future by using data in the past. This study aims to analyze the supply of raw materials using forecasting methods, and determine the amount of demand, determine the causes of defects in production by providing suggestions for improvement in the process of making a veil. The steps of this research procedure are carried out several stages including moving average, exponential smoothing, define, measure, analyze, improve, control. The results of this research show that the defect of hood products is not neat stitching, the fabric used is wrinkled, there are holes in the fabric hood, ink is not suitable for printing, the environment is less conducive so workers are less focused when working. For the results of calculations from six sigma obtained Defect per Million Opportunity value obtained a value of 1916.33 and a sigma value of 4.391.ABSTRAK Peramalan adalah suatu metode yang dilakukan untuk memperkirakan suatu keadaan dimasa yang akan datang  dengan menggunakan data di masa lalu. Penelitian ini bertujuan untuk menganalisis persediaan bahan baku dengan menggunakan metode peramalan, serta menentukan jumlah permintaan kebutuhan, mengetahui penyebab terjadinya cacat pada produksi dengan memberikan usulan perbaikan pada proses pembuatan kerudung. Langkah prosedur penelitian ini dilakukan beberapa tahapan antara lain moving average, exponential smoothing, define, measure, analyze, improve, control. Hasil penelitian yang didapatkan jenis defect produk kerudung antara lain jahitan kurang rapi, kain yang digunakan kusut, terdapat lubang pada kain kerudung, tinta pada warna tidak sesuai saat cetak, lingkungan yang kurang kondusif sehingga pekerja kurang fokus saat bekerja. Untuk hasil dari perhitungan dari six sigma didapatkan nilai Defect per Million Opportunity diperoleh nilai sebesar 1916,33 dan nilai sigma sebesar 4,391.

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Main engine failure will damage engine systems, reduce navigation safety, and cause serious marine accidents. The cooling system is very important to prevent the engine's mechanical efficiency from deteriorating and engine failure due to overheating. Therefore, a monitoring and error detection system is needed. The system is based on the Modbus RS485 communication and interface. The collection equipment uses components from the 7S-50MC diesel engine. PLC is used as processing equipment and Logic Panel Autonics S070 is used as an interface. Through these tests, error detection in this study can provide an indication of an error when an abnormal situation occurs. In addition, data monitoring and system fault indication can be displayed on the interface. Testing of the system proved that it complies with the Indonesian Shipping Bureau (BKI) regulations on engine warning systems. The research developed can form the basis of more complex and reliable monitoring and fault detection system for applications on ships.

Banyu urip is one of the many villages in the north sea of Gresik. The main livelihood of community is fisherman. To bring it to life, the fisherman need decent fishing boats that is suitable for their age. The fishing boats in Banyu urip are 6-8 years old on average. The fishing boat use fishing nets and gears, and the main catch is shellfish and some other fish. In a year, fisherman can sail up to 200 trips. To develop that potential, an economic analysis need to be done related to the benefits of fishing boats for fisherman around the Banyu urip. The purpose of this research is to find out the initial investment costs, the expenses in one trip, average income of fisherman in a year and payback period of the investment. This research was conducted in several stages, calculate ship procurement costs, operational cost in one trip and also variable cost, so that expenses and income can be known. The next step is analysis of profitability and investment payback period. Based on the results of analysis and calculation, the investment value of the ship is obtained, the price, equipment, and engine of ship are 70 million rupias. Expenses in a year, fuel cost, lubricating oil cost, provision fees, ship repair cost and also depreciation expense are 27,399,101 rupias. The income of fishing boats are 62,266,666 rupias/year with 13.37 % Internal Rate of Return and the payback period is 1.6 years. Key Words: Economical, Fisherman, Fish Boat, Banyu Urip