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All Journal Jurnal Teknik Industri Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Economics and Management Scienties
Sumiyati, S
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Physics Social Sciences

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Evaluasi Kinerja Fisik Sistem Subak Yang Berorientasi Agroekowisata Menggunakan Pendekatan Logika Fuzzy Sumiyati, S; Sutiarso, Lilik; Windia, Wayan; Sudira, Putu
Jurnal Teknik Industri Vol 12, No 2 (2011): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1385.546 KB) | DOI: 10.22219/JTIUMM.Vol12.No2.147-155

Abstract

Along with the development of the tourism in Bali, one of the phenomena occurs was that the land conversion to the non-agricultural land, causing the canal irrigation was not able to function again. In addition, water demand will be increased not only for irrigation, but also for other sectors out of irrigation. This condition can interfere the performance of the subak system. One strategy to improve subak system is to develop agroecotourism based on subak system. Analysis of physical performance subak system done using fuzzy logic approach to quantify the condition of vagueness. Because of the problems associated with subak irrigation systemperformance are often vague and can not be classified with certainty. The results of this study are (i) the values of subak irrigation system performance indicators, the condition and thefunction of subak irrigation facilities, the condition and the function of subak facilities, and the agroecotourism facilities; (ii) find out the physical performance of subak irrigation systems in Bali with agroecotourism oriented. The stages of this research were collecting and analyting the data include: (i) RWS (Relative Water Supply), (ii) RIS (Relative Irrigation Supply),(iii) Ia (Index Area), (iv) analysis of the condition and function of subak irrigation networks, (v) the condition and the function of subak facilities, (vi) the agroecotourism facilities, and (vii) physical performance of subak system using fuzzy logic approach. The utilization rate of water on Subak Anggabaya and Subak Lodtunduh in one year was good. Subak Anggabayaand Subak Lodtunduh have sufficient irrigation water supply with RIS values in one year > 1. Based on Area Index (Ia), it could be seen that the irrigated area in Subak Anggabaya andSubak Lodtunduh in accordance with the plan. The physical performance of Anggabaya subak system and Lodtunduh Subak system was in the middle criteria. The simulation results that development of agroecotourism on subak system could improve the physical performance of subak system.
The Effect of Affiliate Marketing on Trust and Repurchase Intention: A Study of Tokopedia Marketplace in Pontianak City Maulidya, M; Sumiyati, S
Journal of Economics and Management Scienties Volume 7 No. 3, June 2025
Publisher : SAFE-Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37034/jems.v7i3.93

Abstract

This study aims to analyze the effect of Affiliate Marketing on Trust and Repurchase Intention on Tokopedia marketplace users in Pontianak City. The method used is a quantitative method with an associative approach. Primary data was obtained through a questionnaire to 200 respondents who are Tokopedia users. The independent variable in this study is Affiliate Marketing, the mediator variable is Trust, and the dependent variable is Repurchase Intention. Data analysis was carried out using the Structural Equation Modeling (SEM) technique through SmartPLS software. The results of the study indicate that Affiliate Marketing has a positive and significant effect on Trust, Trust has a positive and significant effect on Repurchase Intention, but Affiliate Marketing does not have a direct effect on Repurchase Intention. However, it was found that Trust significantly mediates the effect of Affiliate Marketing on Repurchase Intention. This finding shows the importance of consumer trust in strengthening the effectiveness of affiliate marketing strategies to encourage repeat purchases. This study provides implications for e-commerce players in designing marketing strategies that focus on increasing customer trust through an affiliate approach.
Potensi Penerapan Teknologi Aerobic Granular Sludge (AGS) dalam Pengolahan Air Limbah Industri Tahu Hidayat, Y. A. A.; Sumiyati, S; Budihardjo, M. A.; Setianingsih, N. I.
Jurnal Penelitian Pendidikan IPA Vol 10 No 12 (2024): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i12.9072

Abstract

The tofu industry produces high protein food but produces wastewater with high organic matter and ammonia which is the result of protein breakdown in soybean seeds during the extraction process. Small and Medium Enterprises (SMEs) sometimes neglect waste treatment due to limited resources. Indonesian regulations stipulate special quality standards for wastewater in the Regulation of the Minister of Environment of the Republic of Indonesia No. 5 of 2014 concerning Wastewater Quality Standards for Soybean Processing Businesses and/or Activities. Indicators of organic matter pollution are characterized by the parameters BOD 150 mg/l, COD 300 mg/l, TSS 200 mg/l, and pH 5-9. Meanwhile, tofu industrial wastewater without special treatment can exceed the quality standard with BOD levels of 5.000-10.000 mg/l and COD levels of 7.000-12,000 mg/l. To overcome this problem apart from using activated sludge, researchers are exploring the use of Aerobic Granular Sludge (AGS) technology. AGS involves aggregate microorganisms in granules to treat wastewater efficiently. This increases treatment efficiency, reduces space requirements, and handles high organic loads effectively. Although aerobic granular technology is promising, research is still ongoing to better understand its characteristics and optimize applications in various industries and environmental conditions. This study aims to explore the potential application of Aerobic Granular Sludge (AGS) technology in treating tofu industrial wastewater with high organic matter content and significant ammonia content so that it meets permitted quality standards.
Co-Authors Budihardjo, M. A. Hidayat, Y. A. A. I WAYAN WINDIA Lilik Sutiarso Maulidya, M Putu Sudira Setianingsih, N. I.