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All Journal Warmadewa Management and Business Journal (WMBJ) Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer
Bagus Kusuma
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Computer Science & IT Economics, Econometrics & Finance

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DAMPAK PANDEMI COVID-19 PADA SEKTOR PERHOTELAN DI BALI Bagus Kusuma; Bagus Kusuma Wijaya; Wayan Eny Mariani
Warmadewa Management and Business Journal (WMBJ) Vol. 3 No. 1 (2021)
Publisher : Fakultas Ekonomi Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/wmbj.3.1.2021.49-59

Abstract

Pandemi COVID-19 (corona virus dease – 19) atau yang juga dikenal dengan nama virus Corona saat ini sedang melanda dunia. Terdapat lebih dari 3.900.000 kasus positif terinfeksi virus corona di seluruh dunia dan telah menelan korban jiwa lebih dari 270.000 jiwa. Indonesia sebagai negara dengan kepadatan penduduk nomor empat di dunia diperkirakan akan mendapat pengaruh yang sangat signifikan dan dalam periode waktu yang mungkin lebih lama dari negara lain karena tingkat disiplin yang masih kurang. Dampak pandemi ini ternyata tidak saja pada dunia kesehatan, tetapi juga sangat mempengaruhi seluruh aspek kehidupan masyarakat. Saat ini, masyarakat dianjurkan untuk melakukan social distancing, dimana kegiatan belajar, bekerja, dan beribadah dilakukan di rumah. Selain itu, anjuran tentang protocol kesehatan dari WHO (World Health Organization) seperti rajin mencuci tangan, menjaga kesehatan dan kebersihan serta selalu mengenakan masker apabila harus keluar rumah juga terus menerus digaungkan. Hal ini tentu berdampak pada kondisi ekonomi masyarakat secara umum, di mana banyak masyarakat dirumahkan karena perusahaan tempat mereka bekerja telah berhenti beroperasi baik secara temporer maupun permanen dengan adanya pandemi ini. Salah satu industri yang sangat terdampak oleh pandemi adalah industri pariwisata, dimana didalamnya terdapat sektor akomodasi wisata atau perhotelan. Sektor ini secara umum didominasi oleh perusahaan besar baik dalam negeri maupun milik asing, sektor perhotelan lumpuh beberapa bulan terakhir.
Analisis Komposit Epoxy HGM Carbon Fiber dan Epoxy HGM Sisal Woven sebagai Material Rompi Anti Peluru Bagus Kusuma; Elza Ully Tiara Tampubolon; Sovian Aritonang
Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 1 (2025): Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i1.693

Abstract

This research examines the potential of Epoxy-HGM-Carbon Fibre and Epoxy HGM Sical Woven Fibre composites as alternative materials for bulletproof vests. These two materials were chosen because they have similar ballistic protection capabilities to kevlar but with lighter weight and more economical cost. Using the finite element method, this study simulates the resistance of each composite to the penetration and impact energy of projectiles in accordance with the NIJ 0101.06 standard to protect users from ballistic threats. The simulation results show that the Epoxy-HGM-S Sisal Woven Fibre specimen at an optimum thickness of 30 mm as well as Epoxy-HGM-Carbon Fibre at a thickness of 18 to 30 mm are able to meet the penetration, Back Face Signature (BFS), and residual kinetic energy criteria that comply with the safe limits for users. This research makes an important contribution to the identification of alternative materials that not only improve user comfort and mobility, but also maintain ballistic protection effectiveness for military and security applications, especially for personnel who need protection against ballistic projectiles.
Studi Komparasi Bahan Barium Ferrite Magnet Dan Pani/Fe₃O₄, Sebagai Radar Absorbing Material (RAM) Elza Ully Tiara Tampubolon; Bagus Kusuma; Sovian Aritonang
Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 1 (2025): Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i1.717

Abstract

This research examines the effectiveness of Barium Ferrite and PANI/Fe₃O₄ composite as Radar Absorbing Material (RAM) to reduce radar detection. Barium Ferrite has high absorption at high frequencies as well as good thermal stability, making it suitable for applications under extreme and long-term conditions. In contrast, PANI/Fe₃O₄ composites exhibit high flexibility, the ability to absorb waves over a wider frequency range, as well as light weight, ideal for requirements with lightweight materials, such as aircraft. The analysis shows that the selection of RAM depends on the application requirements regarding frequency range and thermal stability. This study recommends the development of composite materials that combine the advantages of both materials as well as field tests to ensure optimal performance in stealth applications.
Co-Authors Bagus Kusuma Wijaya Elza Ully Tiara Tampubolon Sovian Aritonang Wayan Eny Mariani