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All Journal Jurnal Ilmu Dasar Jurnal Rekayasa Material, Manufaktur & Energi Kreator Journal of Energy, Material, and Instrumentation Technology Jurnal Pengabdian Masyarakat
Murniati, Riri
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Aerospace Engineering Arts Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Potential of Carbon Fiber as An Insulation Layer In Anti-Sensor Thermal Pdl: A Review Nasution, Rahmatsyah; Murniati, Riri; Nasution, Salsabila Fauziah Dhuha
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 2 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i2.237

Abstract

The advancement of technology, along with the development of the times, makes mastery of technology an absolute thing for the progress of national defense; one of its applications in defense materials is the manufacture of PDL anti-thermal sensor suits. In the PDL anti-thermal sensor suit, carbon fiber is used as insulation. Carbon fiber is a strong, lightweight, and thermal insulator material. This research method uses a qualitative descriptive research method with sources from Google Scholar. In this study, Publish & Perish 8 software was used to help obtain 200 journals on the topics of carbon fiber characteristics, composites, sensors, thermal, carbon fiber resistance generators, carbon fiber thermal conductivity testing, determination of layers of PDL anti-thermal sensor clothes, and the use of carbon fiber as an insulation layer on PDL anti-thermal sensor clothes which were then reviewed as many as 20 journals to be reviewed and summarized for reviewed and summarized to see the potential of carbon fiber as an insulation layer of composite materials in PDL Anti-Thermal Sensor clothing. The conclusion obtained in this study is that carbon fiber has a carbon content of 92% with a solid tensile strength of 452.94 MPa and a low thermal conductivity of 1,13 W/mk and has the potential to be applied as an insulation layer on PDL clothes anti-thermal sensors.
Efektivitas Komposit dalam Memperkuat Rompi Anti Peluru Hertanto, Theofillus Lisa Okta; Aritonang, Sovian; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17325

Abstract

This research examines the effectiveness of bulletproof vests made with composite materials, focusing on carbon fiber. The study finds that the thickness of the carbon fiber and the HGM plastic coating in the vest are crucial factors in enhancing protection against bullet penetration. In some instances, thicker composite materials offer better defense. Furthermore, the use of composites allows for lightweight vests, reducing the physical strain on the wearer. These findings have significant implications for the development of personal protective equipment in various sectors, such as the military, law enforcement, and industries like construction. Enhancing the efficacy of bulletproof vests through the integration of composite materials is a vital stride in enhancing the safety of individuals encountering potential bullet threats.
Grafen untuk Aplikasi Penyerapan Gelombang Radar Mikro: Dari Sintesis Graphene Oxide (GO) Berbasis Tempurung Kelapa Yamin, Muthi'ah Alfiyah; Aritonang, Sovian; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 2: Juli 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i2.17352

Abstract

ABSTRACT  Radar systems detect objects using electronic signals. Radar Absorbing Material (RAM), especially graphene, increases radar wave absorption. Using coconut waste to make Graphene Oxide (GO) supports sustainability. It advances more efficient and sustainable radar wave absorption technology. This research is based on literary analysis. The method used in this research is a literature review and in this study will compare the reflection loss material graphene oxide as a radar absorber with other materials.  This research shows that GO synthesized with the Hummer method at 400°C has the best performance in radar wave absorption, competing with other materials such as CoTi1-xCexO3 and silicone rubber variations. This makes GO an attractive choice for radar wave absorption applications, especially on microwave frequencies.Keywords:Absorber Radar, Graphene Oxide, Coconut Waste, Hummer Method
Serat Fiber Kelapa Sawit Sebagai Bahan Dasar Komposit Untuk Digunakan Sebagai Bahan Peredam Suara Aritonang, Sovian; Rasendriya, Anselmo; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 2: Juli 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i2.17341

Abstract

This research discusses the use of oil palm fiber as a base material for composites intended for sound insulation purposes. Sound insulation materials play a key role in reducing noise levels in various environments. Oil palm fiber is identified as a promising material for the effective and sustainable production of sound insulation materials. Test results indicate that the composite of oil palm husk demonstrates the highest sound absorption coefficient (α) at both standard and high frequencies. Consequently, the fiber from oil palm empty fruit bunches (EFB) can be utilized as a viable material for sound insulation composites, and further research can be conducted on the fiber materials from oil palm empty fruit bunches (EFB).
Efek Slot Pada Antena Mikrostrip Hexangular Dual Band Dengan Antena Awal 2,4 Ghz Shafwan, Almas; Aritonang, Sovian; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17320

Abstract

Microstrip antennas play a crucial role in modern communication technology, with their performance dependent on shape and size. This study explores the impact of adding slots to hexagonal microstrip antenna radiation areas. The hexagonal shape was chosen due to its underexplored potential for slot additions. Slots act as elements influencing antenna radiation performance and altering characteristics. The research investigates the effects of various slot shapes and sizes (each with an area of 4 ) on hexagonal microstrip antennas at the initial frequency of 2.4 GHz. The importance of this study lies in the selected initial frequency, aligning with the micro-wave spectrum commonly used in wireless communication, radar, and telecommunications equipment. The hexagonal microstrip antenna, popular for its compact and efficient design, is relevant to modern communication devices.
Pengaruh Penambahan Titanium Terhadap Kekuatan Material Baja Sebagai Bahan Shielding Alutsista Pertahanan Ahmada, Mufti Labib; Aritonang, Sovian; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17309

Abstract

The addition of titanium to steel materials has been a significant research focus in the metallurgical industry. This research aims to investigate the effect of titanium addition on the mechanical and structural properties of steel. Titanium is an interesting element in this context because it has properties that can improve the performance of steel, such as strength, corrosion resistance, and resistance to high temperatures. The addition of titanium to various types of steel has been shown to increase their strength and mechanical properties, primarily by forming titanium carbide or sulfide deposits that reduce grain growth and increase toughness and high temperature resistance. This could open up opportunities to develop high-strength steel with the addition of titanium for applications that require superior mechanical properties, such as for shielding defense equipment.
Kajian Review Aplikasi Serat Sisal (Sisal Fiber) Sebagai Alternatif Komposit Polimer Fauziah, Anis Khoirun Nisa Nur; Aritonang, Sovian; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 2: Juli 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i2.17364

Abstract

Sisal fiber is a natural fiber obtained from the sisal plant (agave sisalana). In addition to the low price of sisal fiber, its strength is legendary with its high tensile strength and superior stiffness. When used as reinforcement in polymer composites, these fibers can provide additional strength to the material. This makes the composite more resistant to compression, tension and bending. Because it has good strength and resistance to pressure, sisal fiber is often used as a reinforcement in making polymer composites. Sisal fiber is also often used in making ropes, nets, cables and other products that require mechanical resistance. The potential for using sisal fiber in various industries is very large. This fiber can be used as a composite for automotive materials, building construction materials, the shipping industry, other equipment, and even packaging. Sisal fiber shows excellent resilience and strength when tested together with other components. Therefore, sisal fiber has special properties and is often used as an alternative to natural fibers in polymer composites.
Penggunaan Cairan Magnetorheologi untuk Meningkatkan Kinerja Body Armor Awalia Yasin, Nurin Krisfina; Aritonang, Sovian; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17306

Abstract

In this journal, we will explain the use of Magnetorheological fluid (MRF) in body armor. The use of MRF material was chosen because its properties can be adjusted using external magnetic forces. The durability of the material structure will be tested using a 9 mm projectile and will be tested using a puncture. In tests carried out with projectiles, the MRF structure will experience a reduction in depth. Testing using a puncture will change the MRF structure to deform by 30% of the normal structure. The application of MRF to kevlar can increase energy absorption and can reduce the effects of bullet impacts. These results show quite good results compared to using other materials in making Kevlar. Apart from that, several advantages of MRFs from graphene in making body armor are also explained. This advantage was obtained from testing the mechanical properties of graphene against several other materials.
Dynamic Mechanical Analysis of Natural Rubber Reinforced Nanosilica Compounds in Industrial Damper Molding Machines MURNIATI, RIRI
Kreator Vol. 10 No. 2 (2023): Kreator
Publisher : P3M Politeknik Negeri Media Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46961/kreator.v10i2.1057

Abstract

INOVASI KREATIF PERANCANGAN MESIN PENCACAH BULU UNGGAS GUNA MENINGKATKAN KEMANDIRIAN EKONOMI PETERNAK AYAM DI MEGAMENDUNG KABUPATEN BOGOR Murniati, Riri
Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2024): Januari
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat Politeknik Negeri Media Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46961/jpk.v3i2.994

Abstract

Abstrak: Bulu unggas yang diubah melalui suatu proses pengolahan dapat dimanfaatkan menjadi pupuk organik, pakan ternak, dan plastik ramah lingkungan. Mesin yang banyak digunakan untuk mencacah bulu unggas saat ini masih memiliki beberapa kekurangan diantaranya hasil cacahan yang masih kasar, memiliki bobot yang besar, kemampuan putaran mesin masih lambat dan aromanya mencemari udara. Tujuan kegiatan ini adalah mengembangkan mesin pencacah bulu unggas untuk dapat diimplementasikan dan diserahkan ke mitra penerima manfaat agar dapat menghasilkan daya guna bagi bagi industri terkait. Kami memberikan solusi dengan merancang alat pencacah bulu unggas yang mampu bekerja secara efektif dan efisien sehingga nantinya dapat dimanfaatkan pada produk industri kreatif. Kegiatan pengabdian ini berkonsentrasi pada perancangan alat yang inovatif agar bisa dilanjutkan tahap pembuatan alat dan diserahkan pada calon pengguna salah satu peternakan ayam di daerah Megamendung Kabupaten Bogor. Tujuan kegiatan ini bisa memberikan dampak baik bagi lingkungan dengan tersalurkannya limbah bulu unggas secara tepat, desain produk ini dapat diimplementasikan dan prototipe bisa diberdayakankan ke mitra penerima manfaat dan dapat menghasilkan daya guna bagi banyak pihak, terutama peternak dan Rumah Pemotongan Ayam.Kata Kunci: Bulu unggas; mesin pencacah; peternak ayam; inovasi rancangan.Abstract:  Utilization of poultry feathers through processing to be converted into organic fertilizer, animal feed, and environmentally friendly plastic. The machine that is widely used for chopping poultry feathers still has some drawbacks, including the chopped results are still rough, has a large weight, the engine speed is still slow and the aroma pollutes the air. We provide a solution by designing a poultry feather chopper that is able to work effectively and efficiently so that later it can be used in creative industrial products. This service activity concentrates on designing innovative tools so that they can be continued at the manufacturing stage and handed over to potential users of one of the chicken farms in the Megamendung area, Bogor Regency. The aim of this activity is to have a good impact on the environment by channeling poultry feather waste properly, the product design can be implemented and prototypes can give benefits for many parties, especially breeders and chicken slaughterhouses.Keywords: poultry feather; chopping machines; design innovation;
Co-Authors Ahmada, Mufti Labib Aritonang, Sovian Awalia Yasin, Nurin Krisfina Fauziah, Anis Khoirun Nisa Nur Hertanto, Theofillus Lisa Okta Hutagalung, Ananda Yessica Margaretha Nasution, Rahmatsyah Nasution, Rahmatsyah Handayani Ramadhan Nasution, Salsabila Fauziah Dhuha Rasendriya, Anselmo Ridho’i, M. Fachmi Salsabilla, Annisa Shafwan, Almas Yamin, Muthi'ah Alfiyah