Adhan Efendi is an accomplished academic and researcher in mechanical and vocational engineering, with a strong focus on automation systems, pneumatic and hydraulic technologies, maintenance engineering, and applied mechanical education. His academic and professional contributions integrate teaching, research, and community service, emphasizing hands-on learning, instructional innovation, and industry-aligned training. His research portfolio reflects sustained productivity and impact, comprising 28 scholarly documents that have received 85 citations across 72 citing documents, demonstrating the relevance and applicability of his work within the engineering and vocational education research communities. With an h-index of 4, his publications highlight consistent contributions to areas such as automation, mechanical systems maintenance, STEM-based instructional innovation, and applied engineering practices. In addition to research output, his work extends to technology transfer and innovation, supported by patented developments and active engagement in peer review for national and international journals. His expertise is further strengthened by professional certifications in pneumatic and hydraulic systems, automation control, welding, occupational safety, and machine operations, enabling a strong linkage between theoretical knowledge and industrial practice. Overall, his academic profile reflects a balanced and impactful career dedicated to advancing mechanical engineering education, applied research, and skill-oriented workforce development through measurable scholarly output and recognized research influence.

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