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All Journal Jurnal Logistik Indonesia MONSU'ANI TANO Jurnal Pengabdian Masyarakat JESCEE- Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Sari, Alifiana Permata
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics Social Sciences

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PEMANFAATAN GELOMBANG ULTRASONIC GUNA MENINGKATKAN HASIL PANEN BUAH sukarno, iwan; Wibowo, Wahyu Kunto; Amarilies, Harummi Sekar; Kurnia, Gita; Baliwangi, Lahar; Sari, Alifiana Permata; Tazkiya, Osel Nur `; Pratami, Putri Monika
MONSU'ANI TANO Jurnal Pengabdian Masyarakat Vol. 7 No. 1 (2024)
Publisher : Universitas Muhammadiyah Luwuk

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32529/tano.v7i1.3117

Abstract

Kecamatan Kedawung menjadi salah satu sentra percontohan pengembangan tanaman buah seperti kelengkeng, jambu dan durian. Kendala yang saat ini masih dihadapi petani adalah bagaimana mengendalikan hama yang menyerang tanaman buah terutama saat masa panen. Petani masih menggunakan cara tradisional seperti brongsong, jaring jebakan, dan metode tradisional lainnya. Tujuan dilakukannya pengabdian ini adalah untuk memberikan pengetahuan tentang pemanfaatan gelombang ultrasonic guna meningkatkan hasil panen buah. Metode pelaksanaan pengabdian masyarkat ini menggunakan pendekatan, survei Pendahuluan, Penentuan kebutuhan rancangan EBT dan Alat pengusir hama tanaman, Implementasi EBT dan Alat Pengusir Hama Tanaman dan sosialisasi dan Edukasi Pengabdian kepada Masyarakat dilakukan dengan melakukan pemasangan alat pengusir hama kelelawar dengan memanfaatkan gelombang ultrasonic. Selain itu, juga dilakukan pemanfaatan Energi Baru dan terbarukan dengan memasang solar panel sebagai sumber energi alternatif untuk menyalakan alat pengusir hama tersebut. Kegiatan ini telah terlaksana dengan baik dan diharapkan dapat membantu petani dalam upaya pengendalian hama tanaman buah. Dengan berkurangnya hama tanaman buah, diharapkan dapat meningkatkan hasil panen buah
Comparison of Data Inquiry and Cost Structure Methods to Arrange Owner Estimate (Case Study of Carbon Steel Pipe Procurement at PT XYZ) Amarilies, Harummi; Erwitie, Gitiza; Sari, Alifiana Permata
Jurnal Logistik Indonesia Vol. 6 No. 1: APRIL 2022
Publisher : Institut Ilmu Sosial dan Manajemen Stiami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31334/logistik.v6i1.1851

Abstract

In material sourcing, one of the procurement processes that should be completed before evaluating and selecting the vendor is making an Owner Estimate (OE). The most common way to arrange an OE is by making Data Inquiry, where the arranger asks for a certain product’s price from a list of providers or vendors. However, this method does not describe in detail how the price of the product is constructed, so the company, which is doing the procurement process, tends to set a higher OE. To reduce this risk, another method to determine OE is introduced. This method applies a Cost Structure method to calculate production and transportation costs, the expenses a vendor should cover when manufacturing the products. Using a total of 20 scenarios that varied the percentage of profits, the increase in carbon steel plate costs, and the overhead costs, using Cost Structure Method can lower the Owner Estimate between 0.51% to 24.46%. The last scenario with 20% increase in profit, 20% increase in carbon steel plate cost and 20% increase in the overhead cost resulted to -2.55% reduce of Owner Estimate. This new method is proven effective as an alternative way to arrange OE for similar material.
Study of Efficiency and Reaction Rates Dechlorination of Nata De Coco Wastewater Using Sodium Thiosulfate Sari, Alifiana Permata; Rhamadani, Fadila Arum; Amanah, Nur Layli; Nugroho, Agung
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 1 No 2 (2022): Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v1i2.17

Abstract

Chemical reduction with sodium thiosulfate is commonly used to dechlorinate chlorinated waste. U.S. Environmental Protection Agency recommends sodium thiosulfate (Na2S2O3) as a dechlorinating agent for waste samples containing residual chlorine before being released into the environment or entering the distribution system. However, sodium thiosulfate's efficiency and chlorination kinetics at different concentrations are still unknown due to a lack of information on chlorination kinetics. The study was conducted by determining the number of efficient doses of sodium thiosulfate and observing chlorination kinetics using sodium thiosulfate as a dechlorination agent observed at different stoichiometric ratios (1x, 1.5x, and 2x). Sodium thiosulfate at a stoichiometric dose of 2x can reduce chlorine residue by up to 0.4 ppm. The regression analysis of and constant rate are used in the kinetic analysis of sodium thiosulfate dechlorination processes. The kinetics of the chlorination process employing sodium thiosulfate is first order to the total concentration of chlorine in solution at a stoichiometric dosage of 2x, according to the findings.
Co-Authors Amanah, Nur Layli Amarilies, Harummi Amarilies, Harummi Sekar Baliwangi, Lahar Erwitie, Gitiza Kurnia, Gita Nugroho, Agung Pratami, Putri Monika Rhamadani, Fadila Arum Sukarno, Iwan Tazkiya, Osel Nur ` Wibowo, Wahyu Kunto