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Journal of Applied Sciences and Advanced Technology
Published by Universitas Muhammadiyah Jakarta
ISSN : -     EISSN : 26226553     DOI : 10.24853/jasat
Core Subject : Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering
Journal of Applied Sciences and Advanced Technology (JASAT) is an international peer-reviewed journal dedicated to interchange for the results of high quality research in all aspect of applied sciences, advanced technology. The journal publishes state-of-art papers in fundamental theory, experiments and simulation, as well as applications, with a systematic proposed method, sufficient review on previous works, expanded discussion and concise conclusion. As our commitment to the advancement of science and technology, the JASAT follows the open access policy that allows the published articles freely available online without any subscription.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 94 Documents
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Feasibility Study of Drainage System Outline Plan in Curup District, Rejang lebong Regency Prayitno, Ragil Adi; Belladona, Meilani; Wardhani, Fenty Wisnu
Journal of Applied Sciences and Advanced Technology Vol 6, No 2 (2023): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.6.2.65-74

Abstract

The purpose of this study is to determine the feasibility  of the drainage system outline plan based on the Regulation of the Minister of Public Works and Public Housing (PUPR) number 14 of 2018 in Rejang Lebong Regency, especially in Curup District. Based on the results of the feasibility test analysis  of the drainage system outline plan in Curup District, it was found that the condition of the drainage system was categorized as feasible. Waterlogging that often occurs due to closed drainage channels and buried in soil. Then, in the category of infrastructure and wastewater treatment facilities are declared infeasible because based on the outline conditions   the capacity of drainage channels amounting to 0.0417186 m3 / s  cannot accommodate dirty / waste discharge originating from population activities, which is 56,442,2006 m3/sec.
Microbubble Measurements using Image Processing with the YOLOv8 Comparison Model Julian, James; Ulhaq, Faiz Daffa; Dewantara, Annastya Bagas; Purba, Riki Hendra; Wahyuni, Fitri; Junaedi, Thomas
Journal of Applied Sciences and Advanced Technology Vol. 6 No. 3 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.6.3.109-116

Abstract

Gas-liquid two-phase is a situation where the gas phase of a liquid coexists together. The presence of gas that forms a region in the liquid environment causes the formation of bubble flow. The parameters of the bubble flow carry important information about the behavior and characteristics of the bubble. This research was carried out by detecting the size and area of the bubble using YOLOv8-based image processing by comparing the model's performance to produce improvements in inference time, increase accuracy, and reduce computational load. Bubble images were collected by adding 0.4 mm copper wire as a comparison to convert mm to pixels; then, the images were labeled and trained with various YOLOv8 models. Confusion matrix, precision and recall are used as comparative evaluation materials for the YOLOv8 model to obtain good model performance. In this study, the AUC of the Precision and Recall curve closest to the value 1 is the YOLOv8m model of 0.990. The comparison results of the matrix evaluation with the best model are the YOLOv8m model with mAP of 99.00% and F1-score of 96.86%. Microbubble measurements are calculated from the output of the YOLOv8 model by converting pixel units to mm. The model used in bubble measurements is the model with the best evaluation results and the model that gets the smallest radius value by considering measurement uncertainty, namely YOLOv8m with a minimum radius of 0.66 ± 0.04 mm..
Drying Of Microalgae Chlorella Sorokiniana on Antioxidant Activity and Formulation Application on Peel Off Gel Masker Mursandi, Hamza; Hendrawati, Tri Yuni; Budiyanto, Budiyanto
Journal of Applied Sciences and Advanced Technology Vol. 7 No. 2 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.2.43-50

Abstract

Unhealty environmental conditions due to air pollution can cause the emergence of free radicals. Peel off gel mask is very practical and easy to apply mask by applaying evenly on the face and after draying, the mask can be removed immediately without the need to rinse. An alternative that can be chosen and is safe in overcoming skin problems is to use natural active inggridients, such as microalgae. Chlorella sorokiniana has nutritional conten, such as water content (6.54%), carbohydrates (18.08%), protein (46,80%), fat (19.93%), and minerals (7.3%). In addition, bioactive compound such as alkaloids, flavonoids, phenolics, saponins, and terpenoids. The purpose of this study was to dry microalgae C. sorokiniana at the best drying time conditions, testing proximate and bioacrtive compounds, such as total phenolics, flavonoids, and antioxidant activity, as well as formulating and evaluating C. sorokiniana microalgae powder mask preparations. The independent variabels in this study include the drying time of microalgae biomass C. sorokiniana 30, 60, 90, 120, and 150 minutes, as well as the concentration of microalgae powder C. sorokiniana 5, 10, 15, 20, 25% for the application of peel off gel mask preparations, while the dependent variables in this study include proximate content, total phenolic, total flavonoid, antioxidant activity, and evaluation of mask preparations. The procedures in this study include: cultivation, harvesting, and collection of microalgae biomass, drying process with time variations, proximate testing and bioactive compounds, as well as formulation and evaluation of C. sorokiniana microalgae powder mask preparations. The results showed that the best drying time for C. sorokiniana microalgae was 120 minutes with a constant drying rate. In proximate testing, including water content (9.27%), ash (4.28), carbohydrates (10.67%), fat (7.56%), protein (31.39%), and crude fiber (0.25%) which shows that the nutritional content of microalgae C. sorokiniana is quite high which can be used to nourish the skin. In addition, the total phenolic content (24.30 mgGAE/g), total flavonoids (19.70 mgQE/g), and antioxidant activity (543.79 mg/L) which shows the antioxidant content is very weak. In the evaluation of masks, organoleptic, pH, homogeneity, spreadability, dry time, and hedonic tests were carried out with 5 different formulations. Based on the evaluation results, the 4th formula has a formulation that meets the requirements and a high level of liking.
Optimization Of Solvent Concentration And Extraction Time Of Chicken Eggshell Protein For Gel Peel-Off Face Mask Application Using Response Surface Methods Ashari, Erin; Redjeki, Athiek Sri; Budiyanto, Budiyanto
Journal of Applied Sciences and Advanced Technology Vol 7, No 1 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.1.35-42

Abstract

Chicken eggshells, commonly discarded as household and industrial waste, present a valuable opportunity for sustainable use due to their abundant quantity. This study explores the potential of utilizing chicken eggshells as a natural protein source to create eco-friendly skincare products, particularly peel-off gel masks, which can combat free radicals and enhance skin elasticity and moisture. The research focused on determining the optimal conditions for protein extraction from chicken eggshells using acetic acid solvent and varying extraction times. Response Surface Methodology (RSM) was employed to optimize these conditions. The protein extraction process involved testing the extracted protein for biuret reaction using spectrophotometry, determining protein content with Ultra Performance Liquid Chromatography (UPLC), and evaluating the physical properties of the resulting peel-off gel mask. The results indicated that both solvent concentration and extraction time significantly impact the yield of protein. The optimal conditions were found to be an acetic acid concentration of 0.5 M and an extraction time of 24 hours, which produced a yield of 5.064%. The RSM model validation showed a p-value 0.05, a desirability index of 0.887, and a predicted yield of 3.080%, with a deviation of 1.98% from the actual yield. These findings suggest that the model is accurate and reliable for further development of the peel-off gel mask. This approach not only provides a sustainable use for eggshell waste but also contributes to the development of high-quality, natural skincare products.
Extraction Of Pipper Betle L. And Formulation Of Herbal Propolis Mouthwash Wusono, Ciska Nabila; Hendrawati, Tri Yuni; Nugrahani, Ratri Ariatmi; Yustinah, Yustinah
Journal of Applied Sciences and Advanced Technology Vol. 7 No. 3 (2025): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.3.83-90

Abstract

Betel leaf (Pipper Betle L.) is a climbing plant that has many benefits. Betel leaves have long been used for fever therapy, cough, stomach cramps, anti-allergic, wound healing, antimicrobial, and antiproliferative. Extraction of betel leaves with green solvent requires optimization of the extraction time and percentage of betel leaves with water. Betel and propolis extracts need to be formulated to become an herbal propolis mouthwash. The purpose of this research (1). Getting the best time and percentage of betel leaves in the extraction into betel extract formulated to make herbal propolis mouthwash. (2). Getting the best formula for variations in the percentage of propolis in herbal propolis mouthwash, (3). Conduct a selectivity test to obtain the results of mouthwash as an antibiotic. Based on the results of this research with a comparison of the heating time of betel leaf extraction. Betel leaf extraction was carried out by the infusion method, and the extract was distilled with variations in the percentage of betel leaves of 2.5%, 5%, 7.5%, 10%, 12.5% , and 50% compared with water. The best heating time results for the best betel leaf extraction, based on the yield of betel leaf extraction and pH were 60 minutes. For the optimum betel leaf extraction results at a betel leaf concentration of 50%. Getting a yield value of 40% and pH 4.55 at an extraction time of 60 minutes. The research is still ongoing by conducting a test of the inhibition of Staphylococcus Aureus bacteria in herbal propolis mouthwash with variations in the percentage of propolis of 0%, 2.5%, and 5%.In the blank without the addition of propolis it does not inhibit bacteria Staphylococcus Aureus, the addition of 2.5% and 5% propolis to the herbal propolis mouthwash formula has been proven to inhibit bacteria Staphylococcus Aureus.
The Urgency of Prenuptial Agreements in Building Household Harmony: A Maqashid Syari’ah Perspective Heni Astuti; Oneng Nurul Bariyah; Usman Alfarisi; Azhar Taufik; Fatma Nurmulia; Dina Febriani; Fakhrurazi; Endang Zakaria
Journal of Applied Sciences and Advanced Technology Vol. 6 No. 3 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to analyze the values of Maqashid Syari’ah contained in prenuptial agreements and their urgency in fostering harmonious households. The research employs a normative juridical approach through library research, utilizing primary data from statutory regulations such as Law No. 1 of 1974 on Marriage, the Civil Code, the Compilation of Islamic Law (KHI), and related provisions. Secondary data were obtained from literature and academic studies concerning Maqashid Syari’ah and Islamic family law. The results indicate that prenuptial agreements align with the principles of al-kulliyat al-khamsah, namely the protection of religion, intellect, life, lineage, and property. Implementing prenuptial agreements can prevent disputes, safeguard spousal rights, and create families imbued with sakinah, mawaddah, and rahmah. The study recommends wider socialization of prenuptial agreements, emphasizing their role in preserving household welfare rather than merely separating assets.
Infidelity Through Social Media as A Reason for Divorce Moh Arhis Said S. Bulagi; Nurhadi; Usman Alfarisi; Fatma Nurmulia; Moh Khoirul Anam
Journal of Applied Sciences and Advanced Technology Vol. 6 No. 3 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In principle, everyone wants a normal and acceptable life in social life. Human beings naturally follow the rules of people's lives, including the rules in family life, but the social environment, position, social status, and experience can change a person. Similarly, in married life, the original situation can be so harmonious that it can turn into conflicts and quarrels when the husband commits an act of infidelity and the wife does the opposite. This reality is sometimes difficult to overcome, in fact, not a few households end up divorced. The author feels the need to raise the issue of infidelity as the reason for divorce in the South Jakarta religious court where there are still many lawsuits filed by both wives and husbands. This type of research is qualitative research or field research with a juridical and non-juridical approach, namely by conducting a search for the study of Law No. 1 of 1974 concerning marriage and also looking at the mutual benefits of the decision of the Panel of Judges. The results of the study show that: First, the ban on divorce in the South Jakarta Religious Court has several factors, including economic factors, moral crisis, and also infidelity factors. Second, the consideration of the Panel of Judges in deciding case No.503/Pdt.G/2019/PA.JS is to look at the facts at the trial, if the plaintiff's lawsuit can be proven correctly, it becomes the consideration of the Panel of Judges in deciding the case.
Optimization of IoT-Based Waste Sorting Algorithms in a Recycling System with a Capacity of 5 Kg Effendi, Riki; Ramadhan, Anwar Ilmar; Dermawan, Erwin; Qadri, Munzir; Hendra, Franka
Journal of Applied Sciences and Advanced Technology Vol. 8 No. 2 (2025): Journal of Applied Science and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.8.2.35-42

Abstract

This study aims to develop and optimize an automatic waste sorting system based on the Internet of Things (IoT) with a 5 kg capacity. The Convolutional Neural Network (CNN) algorithm is used for waste type classification, while optimization is performed using Particle Swarm Optimization (PSO). The system is designed to recognize and sort four main types of waste: plastic, paper, metal, and glass. System performance is evaluated based on three main parameters: sorting accuracy, processing time, and energy consumption. The results show that algorithm optimization successfully increased the average sorting accuracy from 82.5% to 94.8%. Additionally, the waste processing time significantly decreased from 3.2 seconds to 1.8 seconds after optimization, indicating improved operational efficiency of the system. In terms of energy consumption, there was a reduction from 15.6 Joules to 9.4 Joules per sorting cycle, making the system more energy-efficient and environmentally friendly. The conclusion of this research indicates that the CNN algorithm optimized with PSO can enhance the accuracy, efficiency, and energy consumption of the IoT-based automatic waste sorting system. The implementation of this system is suitable for application in small-scale industrial or household sectors to effectively support waste recycling programs. Further research could focus on testing larger capacities and more complex environmental conditions.
Nickel Electroplating on 3D Printed Polylactic Acid (PLA) for Hardness Enhancement Ragaventrand, Ramses Maur; Saptaji, Kushendarsyah; Setiawan, Iwan; Handayani, Murni; Fernandez, Nikolas Krisma Hadi
Journal of Applied Sciences and Advanced Technology Vol. 8 No. 2 (2025): Journal of Applied Science and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.8.2.27-34

Abstract

Electroplating is a process that uses electric current to deposit a layer of metal onto the surface of a conductive material, enhancing its properties such as corrosion resistance, electrical conductivity, and mechanical strength. This study investigates the process of nickel electroplating on 3D-printed polylactic acid (PLA) substrates, focusing on the efficiency and quality of the nickel coatings achieved through electroplating techniques. The methodology encompasses several stages, starting with the design and 3D printing of PLA specimens. Following this, the preparation of the electroplating setup is meticulously carried out, ensuring optimal conditions for the electroplating process. The quality of the nickel coating is then evaluated through a series of tests to assess its mechanical and electrical properties. The key findings from this research indicate that the electroplating process effectively deposits nickel onto the PLA substrates. This deposition significantly enhances the mechanical strength and electrical conductivity of the PLA specimens. The study's results suggest that nickel electroplating on PLA can be a viable method for improving the material properties of 3D-printed parts. This advancement not only contributes to the development of cost-effective and sustainable metal coating techniques for polymer-based materials but also has the potential to broaden the application scope of 3D-printed parts in various fields of engineering and technology. Such improvements could be particularly beneficial in industries requiring enhanced material performance, such as electronics, automotive, and aerospace sectors.
Drying Moringa Leaf (Moringa Oliefera) with Dehydrator for Face Mask Formula Gusrinisa, Ghaida; Hendrawati, Tri Yuni; Nugrahani, Ratri Ariatmi
Journal of Applied Sciences and Advanced Technology Vol. 8 No. 1 (2025): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Moringa leaves contain a lot of nutrition and if its powder has a lot of health benefit for our body. Moringa leaf powder can be used as face mask because it contains a lot of good benefit for our skin, for example natural antioxidant. This reasearch is proposed to make moringa leaf powder from fresh moringa leaf and to use the powder as face mask. The purpose of this research are to get the best drying conditions of moringa leaf and the best face mask formula made from moringa. Fresh moringa leaves are dried using food dehydrator at temperature 40, 50, 60, 70 and 80°C and then the powder is analyzed for its protein and vitamin C content. Then, best-dried moringa leaf powder is mixed with another ingredients to make face mask by varying mass of moringa leaf powder used at 5, 10, 15, 20 and 25 g. Furthermore, moringa face mask is analyzed for its pH, drying time and hedonic test. It is found that drying time (y) of moringa leaves decreasing as the temperature of dehydrator increased according to equation y = 0.6429x2 – 5.3571x + 11.9. Average yield of moringa leaves powder is 24.11%; drying temperature 40°C and drying time 7.5 hour get the best-dried moringa leaf powder with protein content of 27.63% and vitamin C content of 1018.02 mg. Proximate analysys of moringa leaf powder resulted in 29.07% protein; 8.72% ash; 7.93% total fat; 8.57% moisture content and 45.73% carbohydrate. Average pH of moringa face mask is 6.44. The drying time of face mask (y) decreasing as the moringa leave powder mass (x) increased according to equation y = -2.343x + 27.227. Face mask with mass percentage 37%(w/w) of moringa leaves powder get the best formula with pH of 6.4, film dryng time of 16.06 minutes and become favorite by hedonic test.

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