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All Journal SIKLUS: Jurnal Teknik Sipil Jurnal Hilirisasi IPTEKS (JHI) Jurnal Penelitian Enjiniring Fakultas Teknik Unhas BATOBO: Jurnal Pengabdian Kepada Masyarakat
Susanti, Oknovia
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Dentistry Engineering Health Professions Public Health Transportation Veterinary Other

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The Pengaruh Komposisi Unsur Gadolinium (Gd) terhadap Magnesium (Mg) Melalui Casting sebagai Bahan Dasar Implan: Kajian Literatur Susanti, Oknovia; Affi, Jon; Asrilia, Yuni
Jurnal Penelitian Enjiniring Vol 24 No 2 (2020)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.112020.12

Abstract

Magnesium has potential as an implant base material because of its properties required by human bones, such as biocompatibility, non-toxic and easily dissolved (degradability). This element is needed by the human body as much as 375 Mg / day which is stored in bone and blood tissue. Magnesium is the lightest metal which has a mass type of 1.738 gr / cm3 with a modulus of elasticity of 42 GPa which is very close to the modulus of elasticity of natural human bones 10-40 GPa and can be degraded through corrosion that occurs in body fluids containing 0.9 wt% chloride. . Pure magnesium has a high corrosion rate, so there is no need to add alloying elements which can reduce the corrosion rate and at the same time improve its mechanical properties. One of them is through the addition of rare earth alloy elements, namely gadolinium. Currently, magnesium and gadolinium alloys as biodegradable materials are mostly made by casting methods. Therefore, it is necessary to make a literature review on alloys of magnesium and gadolinium by casting methods to see the effect of adding the element gadolinium to magnesium alloys suitable for bone implants in the human body. Based on the results of a literature review of the composition of the effect of the element gadolinium (Gd) on magnesium (Mg) alloys in the casting process for implant base materials, it can be seen that the addition of Gd more than 10% will increase the mechanical properties of the Mg-Gd alloy and a composition suitable for biodegradable implants can be adjusted depending on the needs and health standards as an implant. This Mg-Gd alloy has a wide range of TYS and UTS with TYS 33 MPa-200 MPa and UTS 78 MPa-250 MPa. And the more the element gadolinium is added to magnesium, the smaller the grain size. The smaller the grain size will increase the strength and hardness of the Mg-Gd alloy. Key Words: Biodegradable implants, Pengecoran, Magnesium alloy, Unsur tanah jarang
Inovasi Mesin Penghalus Rempah-Rempah di Koto Anau Kabupaten Solok untuk Peningkatan Ekonomi Masyarakat Mujaahid, Muhammad Khalid Al; Susanti, Oknovia; Alhadid, Muhammad Alif; Gasni , Dedison
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1: BATOBO: Juni 2025
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.3.1.67-76

Abstract

Rempah-rempah dan herbal telah lama menjadi bagian penting dalam kehidupan manusia, digunakan sebagai bahan kuliner, obat-obatan tradisional, dan produk kosmetik. Indonesia, khususnya di kawasan Asia Tenggara, dikenal sebagai pusat penghasil rempah-rempah berkualitas tinggi di dunia. Nagari Koto Anau di Kabupaten Solok merupakan salah satu daerah penghasil rempah-rempah yang melimpah, seperti cengkeh dan kayu manis. Namun, meskipun kaya akan sumber daya alam, para petani setempat masih menjual rempah-rempah mentah karena keterbatasan teknologi pengolahan, seperti mesin penggiling. Keterbatasan ini menyebabkan nilai produk yang rendah, sehingga mengurangi pendapatan petani. Untuk mengatasi masalah ini, tim pengabdian masyarakat menginisiasi merancang mesin penggiling rempah yang dapat diakses oleh petani. Desain alat penghalus rempah-rempah ini memiliki tinggi 1422 mm, panjang 500 mm, dan lebar 200 mm. Sedangkan untuk corong masuk bagian atasnya memiliki panjang 400 mm, lebar 250 mm, pada bagian bawahnya memiliki panjang 160 mm, dan lebar 60 mm. Pada corong keluar memiliki panjang di bagian atasnya 500 mm, dan lebar 180 mm, sedangkan pada panjang bagian bawahnya 500 mm. Alat ini ditenagai motor bakar bertenaga 7,5 HP dan kecepatan putar 3600 rpm. Hasil penggunaan alat penghalus rempah-rempah adalah rempah menjadi halus, merata, dan kapasitas hasil produksi diperoleh sebanyak 20 kg. Alat ini dirancang untuk mempermudah, mempercepat pengolahan, meningkatkan efisiensi, menghemat waktu, mengurangi tenaga, serta mendukung pengembangan usaha pengolahan rempah di tingkat lokal.
Identifikasi Potensi Pengembangan Tanah Dasar (Subgrade) dengan Metode Korelasi Sifat-Sifat Indeks dan Mineralogi Yuliet, Rina; Putra, Rizki Satria; Susanti, Oknovia
Siklus : Jurnal Teknik Sipil Vol. 11 No. 1 (2025): Siklus: Jurnal Teknik Sipil
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/rxh59031

Abstract

Potensi pengembangan adalah cara untuk menggambarkan sifat tanah ekspansif. Fenomena tanah ekspansif memiliki dampak terhadap kerusakan pada struktur dan infrastruktur. Retak yang terjadi pada perkerasan kaku adalah salah satu kerusakan pada infrastuktur jalan. Penelitian ini bertujuan untuk mengidentifikasi potensi pengembangan pada tanah dasar (subgrade) untuk jalan dengan metode korelasi sifat-sifat indeks dan mineralogi. Berdasarkan sistem klasifikasi unifikasi, tanah di kawasan Universitas Andalas dapat diklasifikasikan sebagai tanah lempung plastisitas rendah dengan pasir (CL) dan nilai kuat geser tanah rata-rata yang cukup tinggi 0,685 kg/cm2. Hasil identifikasi potensi pengembangan menggunakan korelasi batas-batas atterberg menunjukkan bahwa subgrade jalan bersifat tidak ekspansif. Berdasarkan korelasi pengembangan dengan aktivitas (A) dengan nilai antara 0,02 hingga 0,25. Identifikasi meneralogi menggunakan Scanning Electron Microscope (SEM) dan X-Ray Difraction (XRD) didapatkan kandungan mineral gibbsite yang memiliki potensi mengembang yang rendah dan illite yang memiliki potensi mengembang ketika terpapar air. Hasil potensi pengembangan (S) didapatkan nilai yang bervariasi antara 6,35×10-8 % hingga 0,29 %, nilai ini memiliki derajat pengembangan yang rendah. Dari hasil identifikasi menggunakan korelasi sifat-sifat indeks dan korelasi mineralogi dapat diketahui bahwa subgrade jalan di kawasan Universitas Andalas memiliki potensi pengembangan yang rendah, sehingga retak yang terjadi pada perkerasan kaku di ruas jalan tersebut bukanlah disebabkan oleh sifat subgrade yang ekspansif. Retak yang terjadi kemungkinan disebabkan oleh penyusutan beton, kelebihan beban, kualitas beton yang tidak sesuai dan sebagainya. Untuk perbaikan keretakan pada perkerasan kaku dapat menggunakan bahan yang sesuai, seperti epoxy atau grouting khusus untuk beton, agar keretakan tidak berkembang lebih lanjut.
INOVASI MESIN PENCINCANG PAKAN TERNAK UNTUK SAPI POTONG PADA KELOMPOK TERNAK GALANGGANG RAYA FARM DI KECAMATAN TANJUNG HARAPAN KOTA SOLOK Susanti, Oknovia; Ghifary, Muhammad Ghazi Al Ghifary; Fauza, Ahmad Hadi; Yulinda, Yulinda; Arlina, Firda
Jurnal Hilirisasi IPTEKS Vol. 8 No. 2 (2025)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v8i2.833

Abstract

The Galanggang Raya Farm livestock group in Nan Balimo Village, Tanjung Harapan District, Solok City, faces a major problem in that there are no grass choppers available to support the feed needs of goats and cattle. This problem has resulted in low feed processing efficiency, a high workload for farmers, and limited availability of quality feed. To address this, this community service activity focuses on technological innovation in the form of designing a grass chopper machine that utilizes local resources, both in terms of materials and technical expertise. The primary objective of this community service activity is to enhance the efficiency and sustainability of cattle and goat farming systems by providing a grass chopper machine capable of producing feed cuts of uniform size, thereby supporting improved feed consumption and optimal livestock growth. Additionally, the use of local components aims to reduce production costs, strengthen the local supply chain, and create new job opportunities in the surrounding farming community. The results of this activity demonstrate that the designed grass chopper machine can produce feed pieces of uniform size, in line with the desired specifications. Feed of uniform size has been proven to increase feed consumption by livestock and positively impact the growth of beef cattle. This innovation not only provides a practical and efficient solution for feed processing but also promotes local economic growth through the use of appropriate technology, strengthening farmers' capacity, and improving farm productivity. 
PENERAPAN INOVASI ALAT PENGIPAS BERAS BERBASIS LISTRIK UNTUK MENINGKATKAN EFISIENSI PASCAPANEN PETANI DI NAGARI CUPAK KABUPATEN SOLOK Susanti, Oknovia; Afriansyah, Rizki; Rozali, Fuadil Fajri; Yulinda, Yulinda; Yanda, Hendri; Yuhelmis, Yuhelmis
Jurnal Hilirisasi IPTEKS Vol. 8 No. 2 (2025)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v8i2.859

Abstract

This activity was carried out in Nagari Cupak, Solok Regency, where local farmers still use traditional tools and manual labor to clean the husks from rice. This manual process not only takes a long time but is also inefficient in separating high-quality rice grains from empty ones. Rice is the primary agricultural product and staple food of the Indonesian people, so the quality of the rice harvest significantly impacts farmers' well-being and food security. However, rice harvests are often unsatisfactory due to the presence of empty grains that must be manually separated by farmers. Therefore, the community service team provided a solution in the form of an electric rice separator to improve work efficiency and harvest quality. This rice separator is designed to automatically separate filled and high-quality grains from empty or imperfect grains. This activity aims to design and implement a rice separator machine that can help farmers in Nagari Cupak optimize their harvest yields. The methods used include field surveys, design, training, and monitoring and evaluation. The field survey involved the team conducting direct observations of farmers regarding the actual conditions they face, designing the machine according to farmers' needs, and then conducting training for farmers on how to use the rice separator machine and monitoring the machine. The results of the tool testing showed that it could separate rice at a capacity of up to 10 kg per minute, a significant increase compared to the manual method, which could only process around 6 kg per minute. 
INOVASI MESIN PENGHALUS REMPAH-REMPAH UNTUK PENINGKATAN EKONOMI MASYARAKAT DI KOTO ANAU KABUPATEN SOLOK Susanti, Oknovia; Mujaahid, Muhammad Khalid Al; Alhadid, Muhammad Alif; Gasni, Dedison
Jurnal Hilirisasi IPTEKS Vol. 8 No. 1 (2025)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v8i1.869

Abstract

Spices have long been an integral part of human life, playing a vital role as traditional medicine, culinary ingredients, and components in cosmetics. Indonesia, particularly within the Southeast Asian region, is regarded as a global hub for high-quality spices. One such spice-rich area is Nagari Koto Anau, located in Solok Regency, known for its production of cloves and cinnamon. However, this significant potential has yet to be fully harnessed by local farmers due to limited processing technology—particularly the lack of spice grinding machines. As a result, farmers are only able to sell their spices in raw form at low market value, which adversely affects their income. To address this issue, the design and implementation of a spice grinding machine that can be operated directly by farmers is essential. The aim of this activity is to accelerate the spice processing workflow, improve work efficiency, and enhance the added value of spice products at the local level. The programme was carried out in Nagari Koto Anau, Solok Regency, West Sumatra Province. The methods employed included interviews, equipment design, and training on the use of the spice grinding machine. Interviews involved discussions with farmers to identify their problems and offer practical solutions, followed by designing the machine based on their specific needs. The training method included a hands-on demonstration on how to operate the spice grinder. The results showed that the spices processed using the grinder became fine and evenly ground, with a production output of up to 20 kilograms.
Co-Authors Afriansyah, Rizki Alhadid, Muhammad Alif Asrilia, Yuni Dedison Gasni Fauza, Ahmad Hadi Firda Arlina Gasni , Dedison Ghifary, Muhammad Ghazi Al Ghifary Hendri Yanda Jon Affi, Jon Mujaahid, Muhammad Khalid Al Putra, Rizki Satria Rina Yuliet, Rina Rozali, Fuadil Fajri Yuhelmis, Yuhelmis Yulinda yulinda