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Micro, Small, and Medium Enterprises/UMKM are one of the main pillars of economic fundamentals that contribute positively to the Indonesian economic ecosystem. However, the high role of UMKM in the Indonesian economy is still hindered by the large number of UMKM in the informal sector, making it difficult to upgrade. The purpose of this community services activity is to increase the empowerement of UMKM actors through mentoring activities by vocational college collaborated with KADIN Malang City and Jawa Timur province and BUMDes in Malang Regency. The UMKM mentoring method is carried out with lectures, discussions, questions and answers, training and assignments, as well as direct output-based assistance. The results of PkM activities show that UMKM assistance from lecturers as well as students provides solutions to partner problems related to aspects of management, legality, capital, and UMKM resilience strategies, as well as increasing independence, adding knowledge and business skills improvement

Community service activities have a central role in supporting sustainable economic growth, especially in the Micro, Small and Medium Enterprises (UMKM) sector. UMKM processing wood-based crafts, as an integral part of local cultural diversity, face significant energy challenges in sustainable development. In order to overcome this obstacle, this community service activity focuses on implementing a Hybrid Solar Power Plant (PLTS) that is integrated with a lathe for UMKM processing wood-based crafts. The purpose of this community service activity is to provide sustainable solutions for UMKM in terms of reliable energy, while supporting the development of environmentally friendly technologies. The methodology applied includes an initial survey of energy needs, design and installation of the Hybrid PLTS system, lathe operator training, and continuous performance monitoring. This activity involves collaboration with UMKM owners and the local village government to ensure the implementation of solutions that are relevant to real needs and conditions. The results of this activity show that the implementation of Hybrid PLTS integrated with lathes has a significant positive impact on production efficiency and product quality for UMKM. These activities make a real contribution to sustainable economic development at the local level. The results can be used as a model for similar developments in other UMKM sectors. Keywords: Community Service, Hybrid PLTS, UMKM, Processing of Wood-Based Crafts, Sustainable Energy, Renewable Energy

If filler metal AH36 steel is used in bimetallic welding, it has the disadvantage of oxidation in the weld area. Also, the weld crack is encountered if filler metal J4 stainless steel is used in bimetallic welding. In this research, welding methods include the preparation of two types of base metal and a twisted combined filler of AH34 steel and J4 stainless steel as a filler rod applied. The welding of 5 mm thick bimetallic material uses the GTAW (Gas Tungsten Arc Welding) or TIG (Tungsten Inert Gas) process with a current electric welding 60 A, 70 A, and 80 A, one layer and two layers, and angle position 90o to 75o. Preparation of tensile test specimens, provision of shallow notches in the weld where the cross-sectional area of the same as the two-parent metals that have been welded together, tensile testing, and analysis of research data are conducted. The welding results using a current of 60 A with one layer showed a tensile strength of 402 MPa. However, welding with two layers decreased to 200 MPa with a difference of 50 % that means there is a significant difference. In the current of 70 A with one layer, the tensile strength is 433 MPa and with two layers, the value decreases very little at 426 MPa with a difference of 2 %, which means there is a minimal difference and makes the best current selection. For current 80 A with one layer produces tensile strength of 412 MPa. Yet, with two layers, the value decreases slightly to 380 MPa with a difference of 8 %, which means there is a relatively small difference.

The obstacle faced during the fatigue test is the waiting time which is quite long and inefficient, especially for test specimens made of ductile metal with waiting times of up to several days. The research method includes reducing the specimen radius to obtain a flexural stress approaching 400 MPa which was originally 229 MPa from a radius of 254 mm to 240 mm with the results of turning the original specimen obtained a minimum diameter of 8.6 mm is reduced to 7.3 mm at a maximum loading of 10 kg. Results of the research are brass specimens C3604BD type with a minimum diameter of 8.6 mm at a flexural stress of 298 MPa showing a fatigue life of 2455546 cycles with a test duration of 1754 minutes and a minimum specimen diameter of 7.3 mm at a flexural stress of 299 MPa showing a fatigue life of 684311 cycles with a test duration of 489 minutes which means that with a minimum specimen diameter of 7.3 mm the fatigue life is 3.59 times shorter than a minimum specimen diameter of 8.6 mm. Meanwhile, for aluminium AA1101 type with a minimum specimen diameter of 7.3 mm at a flexural stress of 182 MPa, the fatigue life is 422117 cycles with a test duration of 278 minutes and with a minimum specimen diameter of 8.6 mm at a flexural stress of 183 MPa, the fatigue life is 389232 cycles with a test duration of 302 minutes which means that with a minimum specimen diameter of 7.3 mm the fatigue life is 1.05 times shorter than the minimum specimen diameter of 8.6 mm or almost the same.

Tujuan penelitian: 1) mengetahui karakteristik modul pada materi listrik dinamis berbasis KPS yang mampu meningkatkan kemampuan berpikir kritis siswa SMA/MA kelas X, 2) mengetahui kelayakan modul pada materi listrik dinamis berbasis KPS dilihat dari aspek kemampuan berpikir kritis siswa SMA/MA kelas X, 3) mengetahui efektivitas modul pada materi listrik dinamis berbasis KPS dilihat dari aspek kemampuan berpikir kritis siswa SMA/MA kelas X. Metode penelitian dan pengembangan yang digunakan Research and Development (R&D). Model penelitian dan pengembangan menggunakan model penelitian 4D Thiagarajan dengan langkah pendefinisian, perancangan, pengembangan dan penyebaran. Modul fisika dikembangkan menggunakan pendekatan keterampilan proses sains dengan langkah pembelajaran mengamati, merumuskan masalah, merumuskan hipotesis, eksperimen, mengidentifikasi variabel, menganalisis data, dan menyimpulkan. Modul divalidasi untuk kelayakannya berdasarkan aspek materi, media, dan bahasa. Setelah divalidasi dan memenuhi kriteria kelayakan modul, dilakukan uji coba kelompok kecil dengan subjek 10 siswa. Setelah direvisi, dilanjutkan uji coba kelompok besar dengan subjek 35 siswa. Data yang diperoleh pada penelitian adalah data pretest-posttest hasil belajar siswa, validasi ahli, angket respon siswa. Hasil penelitian: 1) karakteristik modul berbasis keterampilan proses sains mengandung pertanyaan, materi, evaluasi dan uji kompetensi yang dilengkapi gambar dengan langkah pembelajaran yang digunakan pada modul mengacu pada pendekatan keterampilan proses sains, 2) kelayakan modul berbasis keterampilan proses sains dari hasil validasi materi, media, dan bahasa memenuhi kriteria sangat baik, 3) efektivitas modul berbasis keterampilan proses sains didapatkan nilai N-gain dari uji coba lapangan operasional sebesar 0,73 dikategorikan ˝tinggi˝ dengan signifikansi sebesar p=0,000. Berdasarkan hasil gain score menunjukkan modul fisika berbasis keterampilan proses sains dapat meningkatkan kemampuan berpikir kritis siswa.