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OPTIMASI WAKTU PENGOPERASIAN DAN VOLUME PELARUT PADA PEMBUATAN SUKROSA ESTER DARI METIL ESTER Sukmawati, Sukmawati; Lestari, Pratiwi Putri; Yusnita, Erni
CHEDS: Journal of Chemistry, Education, and Science Vol 7, No 1 (2023)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v7i1.6978

Abstract

Sukrosa ester merupakan salah satu jenis surfaktan yang dihasilkan dengan cara disintesis dari minyak nabati, dimana pada sebelumnya surfaktan disintesis dari minyak bumi yang semakin lama semakin menurun produksinya serta sukar terurai secara biologi. Surfaktan mempunyai sifat-sifat sebagai pengemulsi, pembusaan, deterjen dan pelarutan. Tujuan penelitian ini yaitu untuk menentukan waktu reaksi/pengoperasian dan volume pelarut yang optimum pada pembuatan sukrosa ester dan menghitung bilangan penyabunan, bilangan asam dan nilai HLB pada pembuatan sukrosa ester dari metil ester dengan menggunakan metode interesterifikasi. Dari hasil penelitian diperoleh nilai optimum produk sukrosa ester yaitu pada waktu 3 jam dengan volume pelarut 80 ml. Hasil analisa produk yang diperoleh yaitu konsentrasi sukrosa ester sebesar 3,225 mol/liter, nilai bilangan penyabunan 9,35, nilai bilangan asam 70,125, dan bilangan HLB sebesar 17,333 yang menunjukkan bahwa surfaktan yang dihasilkan termasuk jenis pengemulsi o/w (pengemulsi minyak dalam air).
Perancangan Ulang Tata Letak Fasilitas Gudang Klinik XYZ Menggunakan Metode Dedicated Storage Siboro, Cuincen Faturendra; Yusnita, Erni
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 2 No. 1 (2021)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v2i1.39

Abstract

In a warehouse facility layout design including a health clinic, the layout design of warehouse facilities and production storage areas plays a very important role, it is impossible for the manufactured goods to be distributed directly to all customers. For this reason, there is a need for a good storage area and storage system to simplify the production process. Clinic XYZ is a 24-hour public health clinic, located in a sub-district in North Sumatra, to be precise in Medan Deli District. The problem that occurs is the random arrangement of goods in the warehouse without paying attention to storage and arrangement patterns that depend on the position of the empty warehouse. Based on observations, it is known that the time span needed to look for drugs at the clinic is too long, so this will make it difficult for employees / operators to manage the products to be stored or retrieved from the drug warehouse. One of the warehouse design methods that can be used is the dedicated storage method. Dedicated storage is a method of placing a specific location or storage area for each item stored. In this study, the types of drugs were classified into drugs, solid types of drugs, semi- solid drugs, liquid drugs and gas drugs. Based on the results obtained, the number of slots needed in the drug product warehouse is 11 slots, the total floor area needed is 13.2 m2, the area needed for storing medicinal products with an alley area is 6.8 m2, the percentage of area that is not used for storage the product in the medicinal product warehouse is 34% and the diagonal length of the hand truck when carrying the box is 1.56 m
TRANSFORMASI PROJECT BASED LEARNING DI PERGURUAN TINGGI DALAM PERSPEKTIF ISLAM: KAJIAN BIBLIOMETRIK LESTARI, DELA AYU; BAHARUDIN, BAHARUDIN; HIJRIYAH, UMI; BAHRI, SAIFUL; YUSNITA, ERNI
EDUCATIONAL : Jurnal Inovasi Pendidikan & Pengajaran Vol. 4 No. 4 (2024)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/educational.v4i4.3691

Abstract

This research aims to analyze the development and implementation of PjBL in higher education through bibliometric analysis. Using data from Publish or Perish and Watase UAKE for the 2019-2023 period, this analysis identifies publication trends, dominant research themes, and the most influential authors and institutions in PjBL research. Using the Systematic Literature Review (SLR) method, 114 relevant article publications were found in the Publish or Perish and Watase UAKE databases, with 25 documents from the period 2019 to 2023 selected and analyzed based on the inclusion criteria. The literature review process was carried out in accordance with PRISMA guidelines to ensure the quality of results and data analysis using VOSviewer software version 1.6.20. The research results show a significant decline in the publication of PjBL articles in the tertiary context, and there was the highest peak of publications in 2020. Most of the publications came from Spain, Indonesia and the United States, and the approaches most frequently used were quantitative and qualitative methods. Themes explored include the impact, role and implementation of PjBL. Density mapping analysis shows that knowledge about project-based learning has not been explored in depth, so further research is needed to expand understanding regarding the implementation of PjBL in the higher education context. ABSTRAKPenelitian ini bertujuan untuk menganalisis perkembangan dan implementasi PjBL di perguruan tinggi melalui analisis bibliometrik. Dengan menggunakan data dari Publish or Perish dan Watase UAKE selama periode 2019-2023, analisis ini mengidentifikasi tren publikasi, tema penelitian yang dominan, serta penulis dan institusi paling berpengaruh dalam penelitian PjBL. Dengan menggunakan metode Systematic Literature Review (SLR), 114 publikasi artikel yang relevan ditemukan di database Publish or Perish dan Watase UAKE, dengan 25 dokumen dari periode 2019 hingga 2023 yang dipilih dan dianalisis berdasarkan kriteria inklusi. Proses peninjauan literatur dilakukan sesuai dengan pedoman PRISMA untuk menjamin kualitas hasil dan analisis data menggunakan bantuan perangkat lunak VOSviewer versi 1.6.20. Hasil penelitian menunjukkan penurunan yang signifkan dalam publikasi artikel PjBL di konteks perguruan tinggi, dan terjadi puncak publikasi tertinggi pada tahun 2020. Sebagian besar publikasi berasal dari Spanyol, Indonesia, dan Amerika Serikat, dan pendekatan yang paling sering digunakan adalah metode kuantitatif dan kualitatif. Tema yang dieksplorasi termasuk dampak, peran, dan penerapan PjBL. Analisis pemetaan densitas menunjukkan bahwa pengetahuan tentang pembelajaran berbasis proyek belum banyak dieksplorasi secara mendalam, sehingga diperlukan penelitian lebih lanjut untuk memperluas pemahaman terkait penerapan PjBL di konteks perguruan tinggi.