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All Journal Jurnal Spektran Jurnal Energi Dan Manufaktur SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Jurnal Teknik Mesin R.E.M (Rekyasa Energi Manufaktur) Jurnal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Indonesian Journal of Chemistry Machine : Jurnal Teknik Mesin Jurnal Agrotek UMMat SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Journal of Applied Agricultural Science and Technology Jurnal Pengabdian Magister Pendidikan IPA Jurnal Abdi Insani Jurnal Mesin Nusantara Mechanical Engineering for Society and Industry Jurnal Agro Dedikasi Masyarakat (JADM) Journal of Fibers and Polymer Composites Jurnal Karya Pengabdian Teknik Mesin Protech Biosystems Journal Indonesian Journal of Forestry Research
Nasmi Herlina Sari
Department Of Mechanical Engineering, Universitas Mataram, Mataram 83125, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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ANALISIS SIFAT KEKUATAN TARIK DAN KEKUATAN BENDING KOMPOSIT HIBRYD SERAT LIDAH MERTUA DAN KARUNG GONI DENGAN FILLER ABU SEKAM PADI 5% BERMATRIK EPOXY Muslim, Jauhari; Sari, Nasmi Herlina; Sulistyowati, Emmy Dyah
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 3, No 1 (2013): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.471 KB)

Abstract

Abstract The use of composite materials is growing at over the development of manufacturing industry. Composites sansevieria and hibiscus canabinus with the addition of rice husk ash filler. The purpose of this study was to analyze the tensile strength and bending strength of hybrid composites sansevieria and hybiscus canabinus with rice husk ash filler epoxy bermatrik with random fiber direction.Variation of fiber volume fraction sansevieria and hybicus canabinus is 0%:35%,10%:25%, 15%:10%, 20%:15%, 25%:10%, 35%:0%. Method for making composite specimens in the form of hand lay up with a fiber length of 2cm. Testing was done by bending test following the ASTM standard D790 tensile test and ASTM D3039 standards.The results showed that the composites with rice husk ash fillers higher bending strength and the strength of its appeal compared to the composite without using rice husk ash fillers, where the highest bending strength on volume fraction 0%/35% as big as 32,00 MPa (using filler), and kekutan lowest bending the volume fraction 0%/35% as big as 21, 69 Mpa (without filler). While the tensile test has the highest power in the volume fraction 15%/20% as big as 8,24 MPa (using filler), and the lowest tensile strength on volume fraction 0%/35%  as big as 3,43 MPa (without filler).
UJI FASTENING PADA KAYU KOMPOSIT SERAT PANDAN WANGI DAN LIMBAH KAYU DENGAN RESIN POLYESTER Sulistyowati, Emmy Dyah; Sari, Nasmi Herlina; Sinarep, S.; Pandiatmi, Pandri; Andrian, Insan
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 5, No 1 (2015): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

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Abstract

The purpose of this study was to obtain handling connection type in use as door panels, roofing sheets, walls and floors. Therefore, the tests performed are fastening test and abrasion test. The technique of making wood composite is using hand lay-up technique. Constituent material of board composite is using pandanwangifibers with length variationsare 15 mm, 20 mm, and 30 mm with volume fraction variations are 20% and 30%, and 5% Sengon tree saw-dust is used as the filler. The results showed that pre-drilling with fastener sizes # 6, # 8 and # 10 is 3.5 mm, 4 mm and 4,5mm. The distance between each fastener depends on the fastener head itself, ie fastener # 6, # 8, and # 10. Critical distance between the edge of the fastener has a significant effect on fiber length and volume fraction. The highest value is shown on 15 mm of the fiber length and 20% of volume fraction with the value 3.29 mm, and the lowest value is shown on 15 mm of the fiber length and 30% of volume fraction with the value 2.74 mm. 
Pemanfaatan Lamtoro Sebagai Pakan Ternak Dalam Mendukung Program Desa 1000 Sapi di Desa Pengengat, Kecamatan Pujut, Lombok Tengah Sutaryono, Yusuf Akhyar; Sukarne; Muhammad Edi Nasution; Yogi Prayudi; Namira Risqi Putri Muquita; I Gusti Bagus Indra Permana; Nasmi Herlina Sari; Baiq Tasya Carrisa; Ludia Margrith Suseray; Muhammad Subbanul Mujahiddin; Evelyn Carolina Sentosa; Baiq Elmaliana; Kiki Dewanti
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 4 (2024): Oktober-Desember 2024
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i4.9825

Abstract

Program 1000 Desa Sapi berupaya meningkatkan populasi dan produktivitas ternak sapi guna mewujudkan swasembada daging dengan tujuan ketahanan pangan nasional. Salah satu desa yang masuk dalam program ini adalah Desa Pengengat, Kecamatan Pujut, Kabupaten Lombok Tengah. Desa Pengengat terdapat kandang kelompok Tandur Desi yang dibangun di Dusun Tempit. Desa Pengengat juga memiliki Kelompok Tani Ternak Tandur Desi yang mengelola kandang tersebut. Kelompok tani ternak tersebut memelihara sapi ternak dengan memberinya makan dengan pakan yang berupa campuran hijauan pakan dari lamtoro dan rumput odot. Akan tetapi, ketersediaan pakan masih menjadi permasalahan, sebab para peternak harus menghadapi kesulitan memenuhi kebutuhan pakan ternak terutama di musim kemarau. Hal ini dapat berpengaruh terhadap produktivitas sapi ternak. Di samping itu, ketersediaan pakan ternak yang belum terjamin dapat mengganggu upaya peningkatan populasi sapi ternak yang dapat menghambat agenda Program 1000 Desa Sapi. Dalam rangka mengatasi permasalahan tersebut maka dilakukanlah penanaman lamtoro di lahan dekat Kandang Tandur Desi di wilayah Dusun Tempit untuk menciptakan sumber pakan ternak mandiri. Dari upaya tersebut, peternak mendapatkan wawasan baru mengenai pentingnya menjaga kualitas dan ketersediaan pakan bagi sapi ternak, pembudidayaan dan perawatan lamtoro sebagai pakan ternak, serta pemanfaatan lamtoro sebagai pakan ternak. Dengan demikian, kelompok tani ternak dapat mandiri dalam hal ketersediaan pakan ternak sehingga dapat mendukung lancarnya Program 1000 Desa Sapi.
A Review: Peptide-Based Hydrogels Biomaterials: From Synthesis to Biomedical Applications Sari, Nasmi Herlina; Rivlan, Muhammad Zaidan Fadhlurrohman; Thiagamani, Senthil Muthu Kumar
Journal of Fibers and Polymer Composites Vol. 4 No. 1 (2025): Journal of Fibers and Polymer Composites
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jfpc.v4i1.241

Abstract

Peptide-based hydrogel biomaterials (BHP) have emerged as novel therapeutic platforms for biomedical applications, providing accurate, efficient, and regulated drug delivery. This review examines the design, characterization, production, and biomedical applications of BHP, emphasizing their potential benefits in biomedicine. Advances in peptide synthesis techniques have permitted the creation of hydrogels with customized physicochemical properties to satisfy specific biomedical needs. Furthermore, this review delves into BHPs' biomedical uses, focusing on their role in improving therapeutic responses, allowing for sustained drug release, and reducing tumor growth. BHPs, with their biocompatibility, programmable hydrogel production, and adaptability, constitute a viable technique for addressing the problems of ovarian cancer treatment. This paper gives a thorough summary of current achievements in BHP research, bridging the gap between material development and clinical applications.
THERMAL, MECHANICAL, AND MICROSTRUCTURE CHARACTERISTICS OF PAEDERIA FOETIDA FIBERS/CARBON POWDER HYBRID REINFORCED EPOXY COMPOSITES Sari, Nasmi Herlina; Suteja; Syafri, Edi
Indonesian Journal of Forestry Research Vol. 12 No. 1 (2025): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2025.12.1.27-38

Abstract

Increased environmental and sustainability awareness has fueled efforts to develop bio-based composite materials for a wide range of end-use applications, as well as new alternatives to non-renewable synthetic fibers such as glass and carbon-reinforced composites. Considering development and research, Paederia foetida fiber stem (PFs) reinforced composites have recently generated a lot of interest. Hybrids of PFs with carbon powder (CP) have been explored in order to achieve the best properties for composites. This study focused on investigating the microstructural, mechanical, thermal, and density characteristics of hybrid reinforced epoxy composites made of CP/PFs. Several compositions of PFs and CP (30:0, 20:10, 15:15, 10:20, and 0:30 vol.), were prepared to manufacture composite using a hot press method. The effect of the volume fraction of carbon/PFs on the mechanical, thermal, and fracture structure properties of hybrid composites was examined. The findings showed that sample CDS20 which was made up of 20% PFs and 10% CP had the highest tensile strength (42.3 ± 2.7 MPa) and elastic modulus (2310.8 ± 91 MPa). It also had quite high thermal resistance properties with a residual charcoal content of about 23.8%. SEM analysis showed agglomeration of CP and the number of voids decreased as the volume fraction of PFs increased, and the interfaces between CP-PFs-epoxy appeared denser. For infrastructure applications, this composite may serve as an alternative to epoxy composites reinforced with sisal fiber.
Efektifitas Perlindungan Korosi Aluminium Menggunakan Inhibitor Ekstrak Labu Kuning : Studi Elektrokimia dan Permukaan Syarif Hidayatullah; Nasmi Herlina Sari; Maharsa Pradityatama; Suteja
Jurnal Mesin Nusantara Vol 8 No 1 (2025): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v8i1.24651

Abstract

Penelitian kami berfokus pada peningkatan potensi ekstrak labu kuning sebagai penghambat korosi yang berkelanjutan untuk aluminium (Al) dalam larutan 1 M HCl. Skrining fitokimia dan aktivitas antioksidan diidentifikasi. Berbagai metodologi investigasi termasuk teknik eksperimental seperti Polarisasi Potensiodinamik (PDP) digunakan untuk mengevaluasi keefektifan inhibitor ekstrak labu kuning ini dalam menghambat korosi. Karakteristik permukaan Al yang terkorosi diperiksa dengan menggunakan kombinasi Scanning Electron Microscopy (SEM). Hasil elektrokimia menunjukkan bahwa efektivitas inhibitor bergantung pada konsentrasinya disini mencapai 82.28% pada 3000 ppm inhibitor ekstrak labu kuning. PDP menunjukkan bahwa kontrol inhibisi campuran secara efektif memperlambat korosi Al. Selanjutnya perilaku adsorpsi inhibitor ekstrak labu kuning ke Al mengikuti model isoterm Langmuir dengan sifat fisisorpsi. Analisis SEM lebih lanjut memverifikasi perubahan signifikan dalam morfologi permukaan dan kekasaran Al. Mekanisme adsorpsi dari inhibitor pada permukaan Al berhasil membentuk lapisan pelindung pada permukaan Al sehingga mengurangi laju korosi.
Bio Based Composites for Engineering Application and Sustainability Perspectives Sari, Nasmi Herlina; Rivlan, Muhammad Nabil Fadhlurrohman
Journal of Fibers and Polymer Composites Vol. 4 No. 2 (2025): Journal of Fibers and Polymer Composites
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jfpc.v4i2.493

Abstract

Type of the Paper: Editorial Corner
PENGARUH PREHEAT DAN TEMPERING TERHADAP KEKERASAN DAN STRUKTUR MIKRO HASIL PENGELASAN BAJA JIS SS 400 Askar, Saiful; Sinarep, S.; Sari, Nasmi Herlina
Dinamika Teknik Mesin Vol 3, No 1 (2013): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

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Abstract

JIS steel SS 400 is one of the most common types of steel used for hot rolling steel structures general. This steel is excellented to the weldability and machinability properties. This study aimed to determine the effect of heat treatment with preheating without tempering (PTT), with preheating and tempering (PT), without preheating and without tempering (TPTT), and  without preheating tempering (TPT). The test results are then compared with the raw material specimens. Method of forming specimens using welding SMAW (Shielded Metal Arc Welding) DC reverse polarity using E7018 type electrode diameter of 4 mm. Type of seam used is V open seam with slit width and height of 2 mm and the width of the root angle 70o. This studied used a low alloy steel (JIS steel SS 400) which contain high levels of 0.20% C, maximum 0.005% S, maximum 0.005% P with repetitions each variation three times. Tests conducted it has testing the tensile strength, brinell hardness testing, and microstructure photo shoot. Value of the brinell hardness of welded joints highest in the tempering specimens without preheating, amounting with  163,911 HB hardness value. The structure of cementite and pearlite formed. While the lowest hardness values of specimens owned by raw material is 120,498 HB hardness values that form the microstructure of pearlite and ferrite. 
Pengaruh Panjang Serat Dan Fraksi Volume Serat Pelepah Kelapa Terhadap Ketangguhan Impact Komposit Polyester Sari, Nasmi Herlina; Zainuri, Achmad; Wahyu, Fitratul
Dinamika Teknik Mesin Vol 1, No 2 (2011): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Composite has alone top to be compared with alternative's tech material any other as strong, demulcent, bate corrosion, economic etcetera.  The aim of this research is to investigate the influence of fiber length and fiber volume composition coconut frond to tensile strength step-up and toughness impact composite is coconut frond fiber with matrix resin   polyester   This research utilizes fiber length variation 2 cm, 4 cm, 6 cm and fiber volume variations 5%, 10%, 15%. composite lasing utilizes resin polyester  composite makings done at random with fiber compare and resin 100%. Fiber conduct is done with soak fiber up to 1 hour with NaOH solution as much 4%. composite makings process by method hand lay up  with emphasis manually utilize glass as printed as and depressing.   That result showed for fiber length 2 cm, 4 cm, and 6 cm gotten by supreme tensile strengths on long fiber 6 cm which is 27.5503216 N/mm2 and tensile strength is contemned available on fiber length 2 cm which is 16.80040936 N/mm2  and on fiber volume 5%,10%, and 15% supreme tensile strengths on volume fiber 15%, which is 28.49020468 N/mm2 and tensile strength is contemned available on volume 5%, which is 16.80040936 N/mm2. Toughness impact  supreme for fiber length 2 cm, 4 cm, and 6 cm happens on fiber length 2 cm with volume variation 10% which is 4087.5 Kj/m2 and on fiber volume 5%,10%, and 15% gotten by toughness impact  supreme available on volume 10% with longing fiber 6 cm which is, 4087. 5 Kj/m2
PEMANFAATAN SERBUK TEMPURUNG KELAPA PADA KOMPOSIT Al2O3-EPOXY Syafruddin Zohri, Ahmad; Sari, Nasmi Herlina; Sujita, S.
Dinamika Teknik Mesin Vol 3, No 2 (2013): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

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Abstract

The purpose of this research is utilization of coconut shell powder on Al2O3-Epoxy composite so it can be used as an alternative material of brake linings that are enviromentlly friendly. In this research, coconut shell powder is used as a filler on Al2O3-Epoxy composites that are made using hand lay up method. Comparison volume fraction of coconut shell powder and Al2O3 was varied amount 0:40, 10:30, 20:20, 30:10 and 40:0 (%). Adhesive was used is epoxy resin namely amount 60%. Test conducted is wear test. The results showed that utilization of coconut shell powder on Al2O3-Epoxy can be decrease the wear so it can be used as an alternative material of brake linings that are environmentally friendly
Co-Authors Achmad - Zainuri Achmad Zainuri Achmad Zainuri Achmad Zainuri Agil Trieanto Agus Dwi Catur Agus Dwi Catur Ahmad Akromul Huda Ahmad Akromul Huda Ahmad Ilyas Rushdan Ahmad Safii Ahmad Syafruddin Zohri, Ahmad Ahmad Syafruddin Zohri, Ahmad Syafruddin Ahmad Taufan Ainun Asmawati Anindito Purnowidodo Anindya Aisyatur Amini Arif Mulyanto Arif Mulyanto, Arif Arif Surya Darmawan D.P Arif Surya Darmawan, Arif Surya Arya Muliana Baiq Elmaliana Baiq Tasya Carrisa Catalin Iulian Pruncu Dahlanuddin Denda Ayu Febriani Riaz Putri Dewa Gede Pertama Putra Dewa Gede Pertama Putra, Dewa Gede Pertama Dhea Amalia Didit Yudhanto Difa Salsabila Fakhrunnisa Dimas Juniarto Dina Muliyani Djarot B. Darmadi, Djarot B. Dwi Setyawan Edi Syafri Edi Syafri Emmy dyah S Emmy Dyah Sulistiowaati Emmy Dyah Sulistyawati, Emmy Dyah Emmy Dyah Sulistyowati Emmy Dyah Sulistyowati Emmy Dyah Sulistyowati Emmy Dyah Sulistyowati, Emmy Dyah Evelyn Carolina Sentosa Fitratul Wahyu, Fitratul Fitri Febrianti Gunawan Refiadi H. Harsi, H. Harjono Herlinasari, Nasmi Hidayatulah, Syarif Huda, Ahmad Akromul Huriyani I Gede Widiartha I Gede Widiartha, I Gede I Gusti Bagus Indra Permana I Kade Wiratama I Made Suartika I Made Wirawan I Putu Krishna Artha Sastra I Putu Krishna Artha Sastra, I Putu Krishna Artha I Putu Lokantara I.D.K. Okariawan Ida Bagus Alit IDK Okariawan, IDK IGNK Yudhyadi IGNK. Yudhyadi Insan Andrian, Insan Jamaluddin Jamaluddin Jauhar Fajrin Jauhar Fajrin Jauhari Muslim, Jauhari Joni Iskandar Kadriyan, Hamsu Karyanik, Karyanik Khan, Moonish Ali Kiki Dewanti Lalu Abdurrahman Wahid Lalu Tumbuh Prasetya Lalu Wahyu Alam Ludia Margrith Suseray M. irawan Apriandi M. Wirya Dirjan M. Wirya Dirjan, M. Wirya Maharsa Pradityatama Mardiansyah Maryam Soleha Bahar Muhammad Ali Azmi Muhammad Edi Nasution Muhammad Nabil Fadhlurrohman Rivlan Muhammad Nabil Fadhlurrohman Rivlan Muhammad Rama Setiyadi Muhammad Subbanul Mujahiddin Muhammad Zaidan Fadhlurrahman Rivlan Muji Setiyo N. Nurchayati Namira Risqi Putri Muquita Nur Kaliwantoro Nurhasanah Nurhasanah Nurpatria Nurpatria Nurrochman Hartadi Dasrien Pandri Pandiatmi Pandri Pandiatmi Panji Saputra Anggara Paryanto Dwi Setyawan Pnadri Pandiatmi, Pnadri Putu Lokantara R.C. Lelio Ragil Widyorini Retno Setyowati, Ety Risa Wardani Rivlan, Muhammad Nabil Fadhlurrohman Rivlan, Muhammad Zaidan Fadhlurrohman Rozan Hermansyah Rudy Sutanto S Sinarep, S S Sujita, S S. Sinarep, S. Saiful Askar, Saiful Salman Salman Salman Salman Salman Salman Salman Salman Sanjay Mavinkere Rangappa Sari, Suteja Senthil Muthu Kumar Thiagamani Sinarep Sinarep - Sinarep Sinarep Sinarep Sinarep Sinarep Sinarep Sinarep Sinarep Sinarep Sinarep Siti Zulaeha Sugiman . Sujita Sujita Sujita Sujita Sujita Sujita Sujita Sujita Sujita Sujita Sujita, Sujita Sukarne Sukarne Sukarne Sulhaini Sutaryono, Yusuf Akhyar Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja, Suteja Syafri, Edi Syahrul Syarif Hidayatullah Syarif Hidayatullah Syarif Hidayatullah Syarif Hidayatullah Syharul Syahrul . T Topan, T T. Topan, T. Tawaqqal, Akbar Thiagamani, Senthil Muthu Kumar Thiagamani, Sentil Muthu Kumar Topan Gusti Wibowo Ulfa Handayani Wibi Wahid Muharram Yayan Gunanto Yayat Indra Saputra Yesung Allo Padang Yogi Prayudi Yudi Ahmad Efendi Yusuf Ahyar Sutaryono Yusuf Akhyar Sutaryono Yusuf Akhyar Sutaryono Yusuf Akhyar Sutaryono Sutaryono Zahratul Laili