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All Journal Jurnal Ergonomi Indonesia (The Indonesian Journal of Ergonomic) Teknotan: Jurnal Industri Teknologi Pertanian Rekayasa Mesin Jurnal Keteknikan Pertanian Tropis dan Biosistem Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Industria: Jurnal Teknologi dan Manajemen Agroindustri Jurnal Agrotek UMMat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Teknologi Pertanian Andalas Agroteknika JPMI (Jurnal Pembelajaran Matematika Inovatif) Journal of Educational Experts (JEE) Eksergi: Jurnal Teknik Energi Industrial Research Workshop and National Seminar Literasi: Jurnal Pengabdian Masyarakat dan Inovasi National Multidisciplinary Sciences Cakrawala: Jurnal Ekonomi, Manajemen dan Bisnis
Asep Yusuf
Departemen Teknik Pertanian Dan Biosistem, Fakultas Teknologi Industri Pertanian, Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Pengaruh Promosi Online dan Kualitas Produk terhadap Minat Beli Konsumen di Outlet Makaroni Ngehe Hilton Pamulang Yusuf, Asep; Nurhadi, Ahmad
Cakrawala: Jurnal Ekonomi, Manajemen dan Bisnis Vol. 1 No. 2 (2024): Cakrawala: Jurnal Ekonomi, Manajemen dan Bisnis
Publisher : YAYASAN PENDIDIKAN MULIA BUANA (YPMB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70451/cakrawala.v1i2.437

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh promosi online dan kualitas produk terhadap minat beli. Jenis penelitian kuantitatif dengan pendekatan deskriptif, melibatkan 100 responden konsumen di Outlet Makaroni Ngehe Hilton Pamulang. Pengumpulan data dilakukan melalui kuesioner (g-form), studi pustaka, dan literatur. Analisis data menggunakan SPSS versi 26 dengan metode regresi linier sederhana dan regresi linier berganda. Hasil penelitian menunjukkan: (1) Terdapat pengaruh positif dan signifikan antara promosi online terhadap minat beli dengan persamaan regresi Y = 11,821 + 0,510X1, koefisien korelasi 0,734, dan koefisien determinasi 0,538. Promosi online berpengaruh sebesar 53,8% terhadap minat beli. (2) Kualitas produk juga berpengaruh positif dan signifikan dengan persamaan Y = 9,657 + 0,362X2, koefisien korelasi 0,803, dan koefisien determinasi 0,645. Kualitas produk mempengaruhi minat beli sebesar 64,5%. (3) Secara simultan, promosi online dan kualitas produk berpengaruh positif terhadap minat beli dengan persamaan Y = 9,911 + 0,141X1 + 0,448X2, koefisien korelasi 0,806, dan koefisien determinasi 0,650, berpengaruh sebesar 65%.
The Implementation of Yogurt-Making Machine in Dairy Product to Support Self-Reliance of Residents in Batujajar Transit Apartment, Bandung Nanda, Muhammad Achirul; Sugandi, Wahyu; Yusuf, Asep; Amaru, Kharistya
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 11 No. 1 (2025): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.11.1.29-37

Abstract

This community service proposes the application of a yogurt-making machine for dairy products as a strategy to support residents' self-reliance at the Batujajar Transit Apartment in Bandung. Through modern technology in the milk production process, this community service aims to increase the added value of local dairy products and encourage the active participation of residents in production activities. Community service methods involve surveys, interviews, and direct observations of apartment residents. The number of participants in this training was 20, dominated by housewives, with 62% being aged 20‒25. Based on the analysis, 69.5% of the participants positively assessed this community service activity, including aspects of learning materials, speakers, facilities, satisfaction, and expectations. This implementation also opens up new opportunities for local and regional marketing, increases product competitiveness, and creates an environment that supports economic independence of the farmers. In conclusion, applying a yogurt-making machine for dairy products at the Batujajar Transit Apartment in Bandung is an innovative step toward increasing the economic independence of residents. This community service contributes to developing local products, residents' self-reliance, community empowerment, and regional economic growth.
Penerapan Teknologi Tapat Guna (TTG) Mesin Perontok Padi Pada Kelompok Tani Padi di Kecamatan Cipungara Kabupaten Subang Kristian Sugandi, Wahyu; Yusuf, Asep; Achirul Nanda, Muhammad
Literasi Jurnal Pengabdian Masyarakat dan Inovasi Vol 5 No 2 (2025)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang Jl. Rangga Sentap, Dalong Sukaharja, Ketapang 78813. Telp. (0534) 3030686 Kalimantan Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/literasi.v5i2.1482

Abstract

Manual rice threshing can result in up to a 10% grain loss because the rice grains are not gathered at a single point. Another drawback of manual threshing is that not all rice grains are separated from their husks due to the need for high-pressure strikes. Additionally, farmers, especially women, often complain of back pain because rice threshing work is carried out all day during the harvest season. To reduce the workload and fatigue experienced by rice farmers in Cipunagara District, Subang Regency, the objective of this Community Service Program (PKM) is to introduce rice threshing machines to partner groups. The method involves implementing rice threshing machine technology, including the allocation of 2 (two) fully mechanical rice threshing machines developed by the Agricultural Machinery Laboratory of Unpad. The accompanying mechanism and socialization involve lectures on post-harvest rice processing, specifically rice threshing, instructions on operating and maintaining rice threshing machines, and concluding with discussions. The results of this PKM show increased farmer knowledge regarding post-harvest rice processing, particularly rice threshing, with reduced grain loss (<2%), shorter threshing time (1 HOK), and a threshing machine capacity of 500 kg/hour.
KARAKTERISTIK FISIKO-KIMIA BRIKET SEKAM HANJELI BERDASARKAN PROSES PENGARANGAN Fahmi, Zulfikar; Thoriq, Ahmad; Sugandi, Wahyu Kristian; Yusuf, Asep
Eksergi Vol. 17 No. 1 (2021): JANUARI 2021
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (69.12 KB) | DOI: 10.32497/eksergi.v17i1.2229

Abstract

Sekam hanjeli saat ini hanya berupa limbah yang tidak dimanfaatkan. Penelitian ini bertujuan memproduksi briket dari sekam hanjeli. Metode yang digunakan adalah rancangan acak lengkap dengan variabel terikat berupa konsentrasi perekat kanji (8%, 10%, 15%) sedangkan variabel bebas (densitas, nilai kalor, kadar air, kadar abu, kadar zat mudah menguap, kadar karbon terikat dan laju pembakaran). Selanjutnya dianalisis dengan Duncan Multiple Range Test. Penelitian dilakukan dengan dua metode pengarangan yaitu proses pengarangan terbuka dan pengarangan pirolisis. Arang yang dihasilkan dicampur dengan perekat sesuai variasi dan dicetak menjadi briket. Briket kemudian dianalisa densitas, nilai kalor, kadar air, kadar abu, kadar zat mudah menguap, kadar karbon terikat, dan laju pembakaran. Berdasarkan hasil analisa yang didapat dari penelitian briket biorang sekam hanjeli, kualitas briket biorang terbaik ditunjukkan oleh pengarangan pirolisis dengan komposisi perekat 8% densitas sebesar 0,70 gr/cm3, kadar air sebesar 2,37%, kadar abu sebesar 31,36%, kadar zat menguap sebesar 56,38%, kadar karbon terikat sebesar 12,26%, nilai kalor sebesar 3630 kal/gr dan laju pembakaran.
The Implementation of Micro/Nanobubbles (MNBs) Technology to Treat Basin Water as The Primary Water Source for Hydroponics in Greenhouse Yusuf, Asep; Asdak, Chay; Muhaemin, Mimin; N.P, Sophia Dwiratna; Sugiarto, Anto Tri; Alam, Hilman Syaeful
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.197-204

Abstract

The greenhouse plays a pivotal role in creating an ideal environment for hydroponic cultivation. The greenhouse has utilized rainwater and basin water as a source of raw water for hydroponic farming. Presently, the water quality of Leuwi Padjadjaran basin fails to meet the standards required for hydroponics due to its turbidity, sediment content, discoloration, pH levels exceeding 7, and low dissolved oxygen (DO) concentration of 2.2 mg/l. The micro/nanobubbles (MNBs) technology stands as a viable method for water treatment owing to its capacity to bind impurities via radical OH. The application of MNBs for the treatment of basin water involves the use of a hydrodynamic cavitation MNBs generator with a dual-chamber rotating flow nozzle. The parameters evaluated in this research encompass DO concentration, MNBs stability, microbubble size, and the visual response to MNBs application. MNBs treatment was conducted with three different gases: air, oxygen, and ozone. Microbubbles were measured using the particle image velocimetry (PIV) method. The DO concentration reaches 21.6 mg/l when employing oxygen-based MNBs. On the third day post-generation, MNBs stability still maintains DO concentrations above the initial levels. Thus it can be used as hydroponic raw water.  Keywords:  DO concentration, Greenhouse, Micro/nanobubbles, Water treatment.
The Application of Nanobubble Technology in Hydroponic SWU-01 to Increase Dissolved Oxygen Concentration and Lettuce Plant Growth Yusuf, Asep; Asdak, Chay; Muhaemin, Mimin; Fuadah, Eza Zahrotul; Dwiratna, Sophia; Nanda, Muhammad Achirul; Sugiarto, Anto Tri; Alam, Hilman Syaeful
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1395-1402

Abstract

Hydroponic model SWU-01 is a new hydroponic system innovation that regulates watering automatically and independently by utilizing gravity and Archimedes' law. Dissolved oxygen concentration in SWU-01 is only around 3-4.2 mg/L. DO values can be increased by applying nanobubble technology. Ultrafine bubble or nanobubble is a gas bubble in a liquid that has a diameter of <200 nm. The purpose of this study was to determine the effect of nanobubble on dissolved oxygen concentration and growth of lettuce plants cultivated with SWU-01 hydroponics. The experiment used a one-factor randomized complete block design, namely intermittent administration of nanobubble for 15 min every 3 day (P1) and 7 days (P2), and without nanobubble (P0l). The results obtained based on the ANOVA test at the 5% level with the Least Significant Difference (LSD) follow-up test, namely the parameters of fresh weight and number of leaves of lettuce P1 significantly different from P0 and P2, and no significant differences were found in root length, canopy width, and plant height. The P1 treatment is more effective in increasing dissolved oxygen concentration, leaf count, and fresh weight of lettuce produced in lettuce cultivation using the SWU-01 hydroponic system. Keywords: Dissolved oxygen, Hydroponics, Lettuce, Nanobubbles, Plant growth.
Effectiveness of Nanobubble Technology with Gas Variations in Improving the Quality of Vetiver Wastewater and River Water Yusuf, Asep; Nurrachman, Mochamad Anfasa; Nanda, Muhammad Achirul; Asdak, Chay
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1489-1495

Abstract

Improving the quality of wastewater and river water is a critical priority for environmental conservation. Vetiver root wastewater and water from the Citepus River in the Cikamiri sub-watershed, Garut Regency, have the potential to cause pollution that affects water quality and local ecosystems. This study evaluated different gases (air, oxygen, and ozone) during the application of nanobubble technology to improve the quality of vetiver root wastewater and Citepus River water in the Cikamiri sub-watershed. Parameters measured were DO, pH, and TDS before and during 15-minute nanobubble treatment. Results showed that oxygen and ozone gases significantly increased DO content of the wastewater and river water. In addition, ozone gas improved pH in river water, and decreased TDS most effectively with ozone. It was concluded that nanobubble technology has potential for enhancing wastewater treatment and river conservation.
Co-Authors Achirul Nanda, Muhammad Adriana Sofyan AHMAD THORIQ Ahmad Thoriq Alifia, Rachma Nur Amorita Iqradiella Amorita Iqradiella Angelina Batubara Arif Purwonugroho Asri Widyasanti Asri Widyasanti Boy Macklin Pareira Prawiranegara Ch.F. Godang Tua Chay Asdak Cipta Endyana Eka Aria Putra Elisabet Mutiara Hutabarat Fadzar Bagas Akbar Fahmi, Zulfikar Firdaus Firdaus Fitry Filianty Fuadah, Eza Zahrotul Ganjar Dianugraha Alam Hilman Syaeful Alam Hilman Syaeful Alam Hilman Syaeful Alam Kharistya Amaru Lambok Sinaga Lisa Oktavia Br Napitupulu Luthfie Hafidz Imaduddin M. Ade Moetangad Kramadibrata M. Dedi Ardana M. Hafizh Ulwan Mimin Muhaemin, Mimin Moch Ilham Khoerulloh Mohamad Sapari Hadian Mubarok, Ruslan Muhammad Achirul Nanda Muhammad Saukat Mutia Safira N.P, Sophia Dwiratna Nadia Karimah Nadia Karimah Nanda, Muhammad Achirul Norberta Yuni Rusmintia Nurhadi, Ahmad Nurrachman, Mochamad Anfasa Oktora, Grace Indah Raka Rabean Alifazza Rikha Nurhasanah Ruminta Ruminta Ruslan Mubarok Sella Fiana Selly Harnesa Putri Sidik Maulana Sophia Dwiratna, Sophia Sudaryanto Sudaryanto Sugiarto, Anto Tri Surya P Sukoco TATI NURHAYATI Taufik Ibnu Salim Taufik Ibnu Salim Theresia Romey Totok Herwanto Totok Herwanto Tri Yuliana Vibi Ledianti Wahyu K Sugandi Wahyu Kristian Sugandi Zaida - Zaida Zaida Zaida Zaida Zaida Zaida Zanthy, Luvy Sylviana