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Sufrotun Khasanah
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Transportation

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Analisis Pemasaran untuk Peningkatan Penjualan Madu dengan Metode Analisis Five Forces Sufrotun Khasanah; Jamal; Alfan Mubarok
JERA : Journal of Engineering Research and Application Vol 1 No 2 (2022): Journal of Engineering Research and Aplication_JERA
Publisher : Fakultas Teknik dan Rekayasa

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The honey bee, which is popular in the community, is known to have a sting that is quite discouraging. However, there are stingless bees that can also produce honey. Apart from being stingless, the stingless bee species that are starting to bloom in Indonesia are no less efficacious. The purpose of this study is to find out what problems occur in marketing and to provide an analysis of competitive strategies that should be carried out. The method used in this study is the five force method. The results of this study state that the conditions of competition faced in the honey industry are very tight. This is shown from the analysis of the five forces. Where the five forces analysis shows that there are influential threats to the honey industry, namely the threat of new entrants, the threat of consumer power and the threat of competition among industries. Apart from threats, there are opportunities that stores can take advantage of to increase sales, namely sales opportunities in modern markets, sales opportunities on social media and opportunities for collaboration with herbal medicine sellers. Strategies that can be applied to increase sales and profits are: cooperation strategies with herbal medicine sellers, marketing strategies through social media, sales strategies in modern markets. Keywords : Strategy, Strength, Marketing
Analisis Human Error pada Proses Foto Copy Menggunakan Metode Human Error Identification in Systems Tool (Studi Kasus Toko Gembyang) Beta Arya Ash Shidik Arya; Sufrotun Khasanah; Sido Dea Auvia
JERA : Journal of Engineering Research and Application Vol 2 No 1 (2023): JERA : Journal of Engineering and Application Research
Publisher : Fakultas Teknik dan Rekayasa

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Toko Gembyang merupakan salah satu UMKM penyedia jasa layanan foto copy di kabupaten Pemalang. Terdapat permasalahan human error pada penggunaan mesin, sebagai contoh akibat dari human error yang terjadi yaitu hasil ukuran kertas yang salah, hasil foto copy kurang jelas, foto copy bolak balik tidak presisi, kertas macet didalam mesin dll. Sehingga perlu dilakukan analisis untuk mengetahui faktor penyebab terjadinya human error pada jasa pelayanan foto copy di Toko Gembyang, dengan tujuan agar dapat mengurangi terjadinya kejadian human error yang dapat mempengaruhi efektifitas, keselamatan atau performa sistem. Identifikasi dan analisis human error yang dilakukan pada penelitian ini menggunakan metode Human error Identification in Systems Tool (HEIST). Berdasarkan hasil penelitian, diketahui bahwa tugas yang sering terjadi kesalahan yaitu pada saat melakukan foto copy KTP bolak balik. Kesalahan yang dilakukan yaitu pada proses membalik KTP dan meletakkan kertas kedalam box kertas di mesin foto copy dengan posisi yang tidak sesuai. Hal tersebut menyebabkan hasil foto copy KTP bolak balik yang keluar tidak presisi antara sisi ke 1 dan sisi ke 2 bahkan bisa sampai berlawanan letak. Saran yang diberikan untuk mengurangi kesalahan yang disebabkan human error yaitu dengan melakukan pelatihan kepada pegawai, dan memotivasi pegawai agar lebih menghafalkan letak dan posisi kertas saat melakukan foto copy. Serta memberikan tanda pada samping-samping layar foto copy agar memudahkan pengoprasian. Kata kunci : UMKM, human error, HEIST
Delignifikasi Limbah Kulit Nanas untuk Produksi Biogas Melalui Metode Delignifikasi MAE (Microwave Asissted Extraction) dengan Pelarut Safaah Nurfaizin; Sufrotun Khasanah
JERA : Journal of Engineering Research and Application Vol 3 No 1 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Biomass as an energy source is very compatible with Indonesia's natural resources. Pineapple peel waste contains a lot of cellulose, which can be used as a renewable energy source. However, the presence of lignin in pineapple skin stops the hydrolysis process. So, this research looks at how the MAE (microwave assisted extraction) delignification method optimizes pineapple peel waste cellulose. The results of research by changing the operating temperature to 70oC, 80oC, and 90oC show that lignin solubility increases with operating temperature. To compare, the control sample had lignin and cellulose solubility of 2.68% and 17.39% of the sample weight, while the sample delignified with MAE had a solubility of 9.04% and 29.42% of the sample weight at an operating temperature of 90oC, for two twenty minutes, and with a ratio of 1:20 (w/v). After delignification, analysis continues using FTIR to compare the organic components in the sample. In the graph of microwave pretreatment spectra results, wide absorption is found at 3320 and 3333 cm-1; The spectra results without pretreatment show free O-H vibrations from a group of hydroxyls in the cellulose molecule. The peaks that have changed can be seen in the graph of the microwave pretreatment spectrum results, which shows wave values ​​of 1625 and 1630 cm-1, and shows the vibration of the aromatic chains in lignin. The cellulose peaks are 1032 and 1034 cm-1. These peaks are glucose ring stretching, changes in the C-H form in hemicellulose and cellulose.
Uji Karbon Teraktivasi H2SO4 Hasil Pirolisis Untuk Adsorbsi Ion Logam Kromium (Cr) Andrian Adhi Susila; Safaah Nurfaizin; Laeli Kurniasari; Sufrotun Khasanah
JERA : Journal of Engineering Research and Application Vol 4 No 2 (2025): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

Heavy metal pollution such as chromium (Cr) in industrial wastewater is a serious environmental problem because of its impact on human health and aquatic ecosystems. One effective method to reduce Cr levels in waste is adsorption using activated carbon based on natural materials. This study aims to examine the effectiveness of activated carbon obtained from pyrolysis wood twig waste in absorbing Cr ions. Activated carbon was activated using sulfuric acid (H₂SO₄) with concentration variations of 1, 3, and 5 M to increase adsorption capacity. Adsorption tests were carried out with contact time variations of 60, 90, and 120 minutes, and analyzed using Atomic Absorption Spectroscopy (AAS). The results showed that activated carbon with H₂SO₄ activation increased adsorption capacity against Cr ions. The higher the concentration of H₂SO₄, the lower the water content and ash content in activated carbon, which indicates an increase in surface area and porosity. The effect of initial Cr concentration on adsorption effectiveness was also observed. At an initial concentration of Cr of 10 ppm, activated carbon was able to absorb up to 58.73% of the total metal ions present. However, when the initial concentration was increased to 25 ppm, the adsorption effectiveness decreased to 41.28%. At a higher concentration, namely 50 ppm, activated carbon was only able to absorb 34.78% of Cr ions. These results indicate that activated carbon from pyrolysis wood twig waste can be an economical and environmentally friendly alternative for the treatment of waste containing heavy metals.
Co-Authors Alfan Mubarok Andrian Adhi Susila Beta Arya Ash Shidik Arya Jamal Laeli Kurniasari Safaah Nurfaizin Sido Dea Auvia