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Open Science and Technology
Published by Research and Social Study Institute
ISSN : 2776169X     EISSN : 27761681     DOI : http://dx.doi.org/10.33292/ost
Core Subject : Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Environmental Science Mechanical Engineering
Open Science and Technology diterbitkan oleh Research and Social Study Institute sebagai sarana untuk mempublikasikan hasil penelitian, artikel review dari peneliti-peneliti dibidang Ilmu alam, Ilmu pertanian, ilmu Kehutanan, Ilmu Keteknikan, Teknologi, dan Aplikasinya. Jurnal ini terbit dua kali setahun (April dan Oktober). Jurnal ini diterbitkan secara online dan cetak. Open Science and Teknologi memilki filosofi bahwa jurnal ini terbuka untuk siapa saja baik mahasiswa, dosen, peneneliti, konsultan, praktisi di bidang ilmu sains dan teknologi secara umum untuk menerbitkan hasil studi atau penenlitiannya di jurnal ini. Jurnal ini diharapkan pula dapat menjadi jurnal yang fast respone, fast review dan fast publication. Dan kedepan dapat terakreditasi secara nasional dan terindek secara global. Open Science and Technology telah ber P-ISSN 2776-169X dan E-ISSN 2776-1681
Arjuna Subject : Umum - Umum
Articles 69 Documents
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Rainfall-Runoff Transformation Analysis Using The HBV-96 Model in The Cidanau Watershed, Banten Furqani, Fahma; Syafri, Yuni Purnama; Octavia, Dyla Midya; Zayu, Wiwin Putri; Yunas, Barkhia
Open Science and Technology Vol. 4 No. 2 (2024): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v4i2.130

Abstract

Transformasi hujan-limpasan telah dilakukan pada DAS Cidanau, Benten menggunakan Model Hidrologi HBV-96 pada periode 2010-2011 sebagai periode kalibrasi dan 2012 sebagai periode validasi. Tujuan dari penelitian ini adalah untuk menganalisis kinerja model subtropis HBV-96 ke daerah tropis DAS Cidanau, Banten. Model HBV-96 dikalibrasi secara manual melalui uji coba penyesuaian parameter untuk mendapatkan kondisi fisik yang sesuai dengan DAS Cidanau. Hasil penelitian menunjukkan bahwa model dapat mentransformasi hujan menjadi debit limpasan dengan cukup baik dengan nilai korelasi (r) dan NSE pada kalibrasi sebesar 0,829 dan 0,672. Hasil perhitungan neraca air menunjukkan perbedaan total debit observasi dan total debit simulasi tidak terlalu jauh berbeda, yaitu sebesar 2253 mm dan 2139 mm. Hal ini menunjukkan model HBV-96 yang diaplikasikan di DAS Cidanau cukup baik dalam mentranformasikan data hujan menjadi limpasan dan perhitungan neraca air, walaupun belum baik dalam menggambarkan debit puncak. Rainfall-Runoff transformation has been carried out at Cidanau watersheed, Benten using the Hydrology Model named HBV-96 in the period 2010-20011 as calibration and 2012 as validation. The purpose of this study is to analyze the performance of the HBV-96 as a subtropical model to the tropical area of the Cidanau watershed, Banten. The HBV-96 model is calibrated manually through a parameter adjustment test to obtain physical conditions that are in accordance with the Cidanau watershed. The results show that the model can transform rain into runoff discharge quite well with correlation values (r) and NSE of 0.829 and 0.672. The results of the water balance calculation show that the difference between the total observation discharge and the total simulated discharge is not too different, which is 2253 mm and 2139 mm. This shows that the HBV-96 model applied in the Cidanau watershed is quite good in transforming rainfall data into runoff and water balance calculations, although it is not good in describing peak discharge.  
Internet of Things Applications in Environmental Sustainability: A Comprehensive Review of Smart Monitoring Systems in Agriculture and Water Management Azmi, Khairul
Open Science and Technology Vol. 4 No. 2 (2024): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v4i2.140

Abstract

Internet of Things (IoT) telah menjadi teknologi utama dalam meningkatkan keberlanjutan lingkungan, terutama dalam pengelolaan air dan pertanian. Namun, masih terdapat tantangan dalam efisiensi penggunaan sumber daya, pemantauan real-time, dan pengambilan keputusan berbasis data. Tanpa sistem pemantauan cerdas yang terintegrasi, praktik pengelolaan air dan pertanian sering kali tidak optimal, menyebabkan pemborosan sumber daya dan dampak lingkungan yang lebih besar. Tinjauan literatur ini mengeksplorasi berbagai aplikasi IoT dalam sistem pemantauan cerdas, dengan fokus pada solusi yang diterapkan, teknologi sensor, parameter lingkungan yang dipantau, hasil implementasi, serta tantangan dan rekomendasi. Hasil kajian menunjukkan bahwa IoT dapat meningkatkan efisiensi penggunaan sumber daya, mendukung pengambilan keputusan berbasis data, serta mengoptimalkan praktik pertanian dan distribusi air. Namun, tantangan seperti biaya implementasi yang tinggi, privasi data, dan interoperabilitas masih menghambat adopsi secara luas. Untuk mengatasi hal ini, studi ini merekomendasikan peningkatan aksesibilitas teknologi IoT, pengembangan komunikasi nirkabel bawah tanah, serta keterlibatan publik dalam pengelolaan air pintar. Dengan solusi ini, IoT berpotensi menciptakan sistem pemantauan lingkungan yang lebih efisien dan berkelanjutan di masa depan. The Internet of Things (IoT) has become a key technology in enhancing environmental sustainability, particularly in water management and agriculture. However, challenges remain in resource efficiency, real-time monitoring, and data-driven decision-making. Without an integrated smart monitoring system, water and agricultural management practices are often suboptimal, leading to resource waste and greater environmental impact. This literature review explores various IoT applications in smart monitoring systems, focusing on implemented solutions, sensor technologies, monitored environmental parameters, implementation outcomes, challenges, and recommendations. The findings indicate that IoT can significantly improve resource efficiency, support data-driven decision-making, and optimize agricultural practices and water distribution. However, challenges such as high implementation costs, data privacy concerns, and interoperability issues still hinder widespread adoption. To address these challenges, this study recommends improving IoT technology accessibility, developing underground wireless communication systems, and increasing public engagement in smart water management initiatives. By implementing these solutions, IoT has the potential to create more efficient and sustainable environmental monitoring systems in the future.
Cocoa Bean During Fermentation: A Meta-Analysis Fitriani, Dita; Apriyanto, Mulono; Mardesci, Hermiza
Open Science and Technology Vol. 4 No. 2 (2024): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v4i2.143

Abstract

Latar Belakang: Fermentasi kemampuannya untuk menghancurkan kotiledon dan menghasilkan prekursor aroma, fermentasi sangat penting. Sebaliknya, petani Indonesia menunjukkan keengganan terhadap fermentasi karena durasi proses fermentasi yang berlarut-larut, yang berlangsung dari 5 hingga 7 hari. Tujuan: Meta-analisis dilakukan untuk menentukan kemanjuran komparatif kultur starter yang digunakan dalam proses fermentasi biji kakao. Metode: Artikel yang diterbitkan dalam jurnal peer-review mengenai fermentasi kakao digunakan untuk menyusun database. Dengan memanfaatkan platform openknowledgemaps.org, yang mengintegrasikan Pubmed (ilmu hayati) untuk menemukan artikel teks lengkap yang diterbitkan dalam bahasa Inggris dan Indonesia dari Januari 2014 hingga Januari 2024, pencarian literatur yang komprehensif dilakukan. Metode analisis statistik deskriptif digunakan dalam penelitian ini, memanfaatkan aplikasi OpenMEE untuk analisis data. Hasil: Temuan menunjukkan perubahan ragi, bakteri asam laktat, dan bakteri asam asetat selama proses fermentasi. Ukuran efek ragi, bakteri asam laktat, dan bakteri asam asetat masing-masing memiliki nilai -8,061, -0,148, dan 0,020, memenuhi kriteria sederhana Kesimpulan: Berdasarkan analisis meta-analisis, perlakuan eksperimental pertumbuhan ragi, BAL, dan BAA selama fermentasi memiliki efek yang seragam. Background: Due to its ability to destroy cotyledons and generate precursors of scent, fermentation is crucial. In contrast, Indonesian farmers exhibit reluctance towards fermenting due to the protracted duration of the fermentation process, which spans from 5 to 7 days. Objectives: A meta-analysis was conducted to determine the comparative efficacy of starter cultures utilised in the cocoa bean fermentation process. Methods: Articles published in peer-reviewed journals regarding cocoa fermentation were utilised to compile the database. By utilising the openknowledgemaps.org platform, which integrates Pubmed (life sciences) to locate full-text articles published in both English and Indonesian from January 2014 to January 2024, a comprehensive literature search was performed. The descriptive statistical analysis method was employed in this study, utilising the OpenMEE application for data analysis. Results: The findings indicated alterations in yeast, lactic acid bacteria, and acetic acid bacteria throughout the fermentation process. The yeast effect size, lactic acid bacteria, and acetic acid bacteria have values of -8.061, -0.148, and 0.020, respectively, meeting the modest criterion. Conclusions: Based on meta-analysis analysis, experimental treatment of yeast, BAL, and BAA growth during fermentation has a uniform effect.  
Design of Automatic Car Parking Sensor System Using Arduino Uno Program and HC-SR04 Ultrasonic Sensor Suriana, I Wayan; Pancane, I Wayan Dikse; Sugarayasa, I Wayan; Adrama, I Nyoman Gede
Open Science and Technology Vol. 5 No. 1 (2025): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v5i1.147

Abstract

Aims and Methods: One of the challenges that drivers often face when parking a vehicle is limited parking slots. Many drivers face difficulty finding parking slots due to lack of clear information about the slot availability so that they are often forced to make a U-turn after entering a parking lot that turns out to be full. In addition, the limitations of automatic parking systems in conventional vehicles also add to the difficulty in improving parking safety and efficiency, especially in narrow places. This study aims to design and build an automatic car parking sensor system by integrating Arduino-Uno program and HC-SR04 ultrasonic sensor to help drivers by providing accurate and real-time information about the availability of parking slots. The method comprised several stages: hardware designing, consisting of an Arduino Uno microcontroller, HC-SR04 ultrasonic sensor, buzzer, and LED as a warning indicator, then software programming to organize the system logic. The developed system was tested in various scenarios to evaluate both the accuracy of parking slot presence detection and the response speed.Result: The testing results show that the system is able to provide precise warnings according to the detected object in the slot, thus improving safety during the parking process.Conclusion: The Arduino-based car parking sensor system with HC-SR04 ultrasonic sensor could serve as an effective tool in detecting the presence of vehicles in the parking lot.
Effect of Gurney Flap on The Flow Separation Phenomenon on The Rear Wing Airfoil of Racing Car Kurniawan, Dondi; Yoanita, Yulia Venti; Pinindriya , Sinung Tirtha; Kumolosari, Eli; Prabowo, Angga Darma
Open Science and Technology Vol. 5 No. 1 (2025): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v5i1.150

Abstract

Background: A racing car must be able to run at high speeds. To achieve this goal, vehicle aerodynamic modifications are often carried out, one of which is adding a gurney flap (GF). The GF on a racing car function to delay the flow separation, increase the downforce value, and reduce the drag force.Aims & Methods: In this study, observations of the influence of GF were carried out by numerical simulation using Solidworks 2025 by varying the speed of 250, 320, and 400 km/h at an angle of attack of 0°, with and without GF. The aim is to obtain information on the influence of these variations on the flow separation phenomenon on the rear wing airfoil.Result: The results showed that the addition of GF caused a delay in flow separation and a decrease in wake/vortex behind the airfoil. The impact was that the drag force increased at low speeds (39.97% at 250 km/h) but showed a decrease at medium and high speeds, namely -7.91% at 320 km/h and -2.31% at 400 km/h.
The Influence of Data Utilization and Supply Chain Digitalization on the Operational Efficiency of MSMEs: A Study in Lampung Province Bursan, Rinaldi
Open Science and Technology Vol. 5 No. 1 (2025): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v5i1.151

Abstract

Aims and Methods: This study aims to analyze the effect of data capability and supply chain capability on the operational efficiency of MSMEs in Lampung Province. The method used is a quantitative approach and multiple linear regression analysis involving simulated data from 200 respondents to test the relationship between variables.Results: The results of the analysis show that supply chain capability has a more dominant and significant influence on operational efficiency compared to data capability. Data capability contributes positively and significantly to improving operational efficiency, especially when integrated into the supply chain management process. The R Square value of 0.497 indicates that almost 50% of the variation in operational efficiency can be explained by the two independent variables. The results of the study support the Resource-Based View (RBV) perspective that internal resources such as data and efficient supply chain systems are determining factors for the competitiveness of MSMEs.Conclusion: The practical implications of this study encourage the need for a digitalization strengthening program and data-based logistics systems to support local MSMEs to be more adaptive in facing market competition. This study also recommends further studies with sectoral and longitudinal approaches to understand the long-term impact of digital integration on MSME business performance.
Community Based Tourism and Renewable Energy Potential Study of the Sano Nggoang Lake, Flores, Indonesia Sari, Putu Ayu Amita; Asmoro, Novky; Murtiana, Sri
Open Science and Technology Vol. 5 No. 2 (2025): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v5i2.154

Abstract

Aims: This research employed qualitative methods focused on in-depth research at the Sano Nggoang site. The problem solved by this research is to examine the potential of community-based tourism and renewable energy so that it can bring benefit in economic, social, and environmental benefits for the community.Methods: The methods employed included observation, interviews, and literature review. The goal was to gather information about the potential for community-based tourism, particularly geo-tourism, and renewable energy. This research can then be used to develop the local economy in Sano Nggoang.Result: The results of this study revealed the tourism and renewable energy potential in Sano Nggoang. Attractions include birdwatching, horse riding, village tours, and forest tours. Available amenities include hot springs and homestays. Renewable energy potential includes geothermal energy and renewable energy. All of this potential can be developed through community-based tourism, thereby providing economic benefits to the residents of Sano Nggoang.Conclusion: The conclusion is that there is considerable potential in renewable energy and geotourism. However, it must be developed collaboratively with the community using a community-based tourism concept. This can then be further developed and implemented within the community to provide sustainable benefits.
Utilization of Kepok Banana Peel Flour (Musa paradisiaca formatypica) as a Feed Additive for Sangkuriang Catfish (Clarias gariepinus) Cultivation Qulubi, M. Hadziq; Rahmawati, Suci Hardina; Mandala, Wintari
Open Science and Technology Vol. 5 No. 1 (2025): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v5i1.123

Abstract

Background: Kepok banana peel (Musa paradisiaca formatypica) is one of the organic wastes that can be used as a feed additive and prebiotic for fish. Kepok banana peel has been less than optimally utilized even though the potential of banana in Lampung Province is very highAims & Methods: The purpose of this study was to analyze the growth of sangkuriang catfish (Clarias gariepinus) with the addition of kepok banana flour at specific concentrations and to analyze the quality of catfish cultivation water with the addition of banana peel flour. The research method was to make banana peel flour and then add it as a feed additive with a percentage of 2%, 4%, and 6%. The observations made were the growth of sangkuringan catfish and the quality of cultivation water by observing temperature, pH, and DO.Result: The results of this study indicate that the analysis of the growth of sangkuriang catfish with the addition of kepok banana flour showed that at a concentration of 6% addition to fish feed, it could increase the highest fish growth, which was 4.67g/weeks for 28 days. The results of the analysis of the quality of catfish cultivation water showed that the pH, DO, and water temperature in each treatment followed SNI 6484-6:2024.
Income Analysis of Taro Farming in Bogor Regency, Indonesia Maryono; Akbari, Sapta Windi
Open Science and Technology Vol. 4 No. 2 (2024): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v4i2.124

Abstract

Usahatani talas merupakan sumber pendapatan tertinggi di antara tanaman umbi-umbian di Kabupaten Bogor, Indonesia. Namun, terjadi penurunan produksi talas di Kecamatan Tamansari, yang merupakan salah satu sentra produksi talas, sehingga penelitian ini dilakukan untuk mengevaluasi kelayakan ekonominya. Penelitian ini bertujuan untuk menganalisis pendapatan, rasio R/C, pengembalian terhadap total modal, pengembalian terhadap tenaga kerja keluarga. Hasil penelitian menunjukkan bahwa usahatani talas di Tamansari menguntungkan dengan pendapatan bersih sebesar Rp 56.417.964 per ha serta rasio R/C 2,5. Selain itu usahatani talas memberikan return to capital dan return to family labour masing-masing sebesar 157.13% dan Rp. 456.641 per HOK. Hasil penelitian juga menunjukan bahwa kelompok tani masih belum berperan dalam meningkatkan pendapatan petani. Namun demikian, temuan ini menegaskan bahwa usahatani talas memiliki potensi yang kuat sebagai sumber pendapatan utama bagi petani, sekaligus mendukung keberlanjutan ekonomi masyarakat setempat. Taro farming is the highest income source among root crops in Bogor Regency, Indonesia. However, there has been a decline in taro production in Tamansari Subdistrict, one of the main production centers, prompting this study to evaluate its economic feasibility. The study aims to analyze income, the R/C ratio, returns on total capital, and returns on family labor. The results indicate that taro farming is profitable, with a net income of IDR 56,417,964 per hectare and an R/C ratio of 2.5. Additionally, taro farming provides a return on capital of 157.13% and a return on family labor of IDR 456,641 per workday (HOK). The findings also reveal that farmer groups have not yet played a significant role in increasing farmers' incomes. Nevertheless, these results confirm that taro farming holds strong potential as a primary income source for farmers while supporting the economic sustainability of the local community.
Effect of Potassium and Plant Growth Promoting Rhizobacteria on Mung bean Yield Kiswondo, Sumiarjo
Open Science and Technology Vol. 5 No. 1 (2025): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v5i1.135

Abstract

Background: Mung beans (Vigna radiata L.) are a family of legumes and have great potential to be developed because they are one of the food crops widely consumed by the Indonesian people, market demand continues to increase both domestically and for export. However, according to the Directorate General of Food Crops (2022), in the 2021 annual report, in East Java mung bean production has decreased since 2017 - 2021. Potassium (KNO3) is a useful nutrient to meet plant needs, as well as increase yields and resistance to pests and diseases of mung bean plants. PGPR (Plant Growth Promoting Rhizobacteria) are biological agents around plant roots (rhizosphere) and play an important role in increasing plant growth and development, have a positive effect both directly and indirectly, mobilize the absorption of nutrients by plants and play a role in the fixation of free nitrogen into ammonia that can be absorbed by plants.Aims: The purpose of the study was to determine the effect of potassium and PGPR and the interaction of the two treatments on the yield of mung bean plants (Vigna radiata L).Methods: The research method used a factorial Randomized Block Design (RBD), consisting of two treatment factors and 3 (three) replications. The first factor was Potassium (K), consisting of 3 treatment levels, namely K1: 50 kg KNO3 per hectare, K2: 100 kg KNO3 per hectare, K3: 150 kg KNO3 per hectare. The second factor was PGPR fertilizer (P), consisting of 3 treatment levels, namely P1: 6 ml PGPR per liter of water, P2: 12 ml PGPR per liter of water, and P3: 18 ml PGPR per liter of water. The variables observed were plant height, stem diameter, number of pods, pod weight and dry seed weight.Result: The results of the study showed that there was an interaction between the treatment of potassium 150 kg KNO3 per hectare with PGPR 12 ml/L (K3P2) on the growth and yield of mung bean plants, the height of plants at 45 HST was 39.36 cm, the diameter of the stem at 45 HST was 8.16 mm, the number of pods was 22.33 pieces, the weight of the pods was 91.85 grams, and the weight of the seeds was 65.68 grams. The single factor of potassium treatment of 150 kg KNO3 per hectare (K3) and PGPR 12 ml/L (P2) gave the best effect on the growth of plant height, stem diameter and the results of the number of pods, pod weight and seed weight of mung bean plants.

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