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Sainteks: Jurnal Sain dan Teknik
Published by Universitas Insan Cendekia Mandiri
ISSN : -     EISSN : 26858304     DOI : https://doi.org/10.37577/sainteks.v5i2
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
Sainteks is a scientific journal that publishes research papers encompassing all aspects of natural sciences, technology and engineering. This journal is published 2 (two) times a year (March and September) by the Faculty of Engineering UICM d/h UNBAR. The fields covered by the Sainteks Journal include: - Chemical Engineering - Textile Chemical Technology - Industrial Engineering - Science - Textile Industry Technology - Environment
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 161 Documents
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The Effect of Accleration and Braking on the Strength of Chopper-Motorcycle Frames under Static Loading Conditions Gumilar, Aji; Akbar, Rozaqy Nurfadhila
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.859

Abstract

Abstract: This study aims to analyze the static strength of two custom chopper motorcycle frame designs considering various loading cases, including normal loading, maximum acceleration, maximum braking, and 5G gravitational acceleration. The analysis is conducted using a numerical simulation approach with the Finite Element Method (FEM) to measure von Mises stress, displacement, and safety factor. The simulation results show significant differences between the two frame designs. Frame 1 exhibits poorer performance with lower safety factors under 5G gravitational acceleration conditions, displaying very high stress and larger displacements, whereas Frame 2 performs better with a consistently safe safety factor across all loading conditions. This study provides important contributions to the development of safer and more functional custom motorcycle frame designs, considering safety aspects in everyday use and modifications.
Design of a 100 KW Kaplan Turbin A Case Study on a Small-Scale Hydropower System Saidiman, Mohamad; Dewi, Rimba Krisnha; Supriyono, Toto
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.864

Abstract

Some parts of the world, such as Indonesia, are blessed with nature that has abundant water energy potential. Water energy includes water turbines. This paper discusses planning a Kaplan-type water turbine with a capacity of 100 kW. The flow of water through Kaplan's turbines is axial. Water currents theoretically have an effective bulk height called head height, H is at least 5 (five) meters with a minimum theoretical discharge of 4.25 m3/s. The results of the calculation show that this Kaplan-type water turbine can produce maximum power at a theoretical discharge of 166.77 kW. The velocity of water entering the turbine inlet chamber is 3.123 m/s, while the theoretical velocity is 13.48 m/s. The profile of the blade was chosen as type Go 480 with a radius of 450 mm, and the weight of each blade was 91.72 N. The water flow on the spoon causes a blade reaction force of 11,996 N for centrifugal force and 1073 N for axial force. The torque produced from this reaction force is 775 Nm. The next plan is to calculate the force on the blade by calculating the moment of inertia, standard voltage, tensile stress, and shear stress. From the results of this strength calculation, the type of material that will be used in making the spoon can then be determined to ensure that the spoon is in a safe state during its operation but still efficient. Next is the process of making spoons, where the steps start from making patterns, making molds, smelting, and pouring the selected metal materials into the machining process.
Analysis of the influence of food types on human intelligence by correlation method Nurhayati, Ai; Purnawan, Benny; Jatnika, Rohman Agus; Widiastuti, Meina; Mardaweni, Riri
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.865

Abstract

Every human being certainly needs nutritious food intake to support physical and mental strength in order to do all his daily activities. There are some human activities that require strong thinking power. Strong thinking skills can be obtained from adequate nutritional intake. The problem is that people do not know the great influence of food types on human intelligence. Therefore there needs to be research that calculates the magnitude of the influence of food types on intelligence. This research is important to do so that consumers can be good at choosing types of food that can increase human intelligence. The purpose of this study is to measure the magnitude of the influence of food types on the level of human intelligence. This research method uses the correlation analysis method. The results of this study indicate that protein food represented by fish has a positive influence on the level of human intelligence. The correlation value obtained from the calculation results is 0.796. The correlation value between 0.7 - 0.9 is included in the category of high linear relations. Therefore, there is a strong relationship between the number of fish consumed to intelligence. Fish is a type of food that contains albumin which is very important for the human intelligence system. Thus it can be concluded that the type of fish food has a strong influence on the level of human intelligence.
Chitin extraction from house crickets (acheta domesticus) using a green method with sonication heating Shakila, Tasya Nur; Sonia, Gita; Anjani, Cindy Salsabilla; Pambudi, Teguh; Umam, Hilman Imadul; Fauzie, Azis Kemal; Putri, Fajar Amelia Rachmawati
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.867

Abstract

Chitin extraction from house crickets (Acheta domesticus) has been optimized by combining a green method using Deep Eutectic Solvent (DES) and sonication heating, thereby reducing environmental impact and improving time efficiency. The extraction process consisted of insect preparation, delipidation, demineralization, and deproteinization. The results show that the green process method with DES and sonication heating is effective in enhancing time efficiency, reducing mineral content by 56.52%, decreasing protein content by 84.94%, and increasing the degree of acetylation by 21%. However, there was a slight difference in the deproteinization results when compared to the cricket samples treated with reflux. FTIR analysis confirmed the purity and structural characteristics of the extracted chitin
Implementing Quality Function Deployment (QFD) to enhance competitiveness and user satisfaction in industrial lubricants Siskayanti, Rini; Iridiastadi, Hardianto
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.868

Abstract

Along with the development and progression of sophisticated engine technology will have an impact on the high level of competition in the lubricant business. This will provide a great opportunity for consumers to find a quality lubricant products at competitive rates. The main objective of this research is to make improvements industrial lubricant that can be developed and improve product quality by analyzing the attributes attached based on customer wants and needs.One of the appropriate methods to solve that problems is Quality Function Deployment (QFD).The data obtained from surveys to customers later translated into the House of Quality (HOQ), then do the analysis. Based on the data analysis afterward be produced expansions proposals according to quality and priority attributes considered important by customers. There are 16 attributes considered important by customers who are grouped into 4 dimensions in the order of priority Place, Price, Product, and Promotion. Of performance industrial lubricant obtained that Product attribute is the most satisfying consumers when compared with competitors. The next sequence is Promotion, Place, and Price.The main priority should be improved for the development of industrial lubricant product is to increase knowledge of human resource and business partners, improvements to the lubricant delivery system by performing a model consignment and optimizing laboratory facilities that have been held so expect industry lubricant products manufactured by PT. XY and consumers demand a wider marketing.
Water Filter Design Using the Quality Function Deployment (QFD) Method in Cibiru District Aditya, Sopyan; Yulianti, Dini; Bhagya, Tombak Gapura
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.869

Abstract

Clean water is a basic need that cannot be separated from human life. PDAM Tirtawening is only able to fulfill 34.28 percent of the clean water needs of the people of Bandung City. For the other 65.72 percent of Bandung City residents, groundwater is one of the alternatives for residents of Bandung City whose areas do not have flow from the PDAM, as is the case in the Cibiru area of Bandung City. Groundwater conditions in the Cibiru area are divided into 2 groups, namely the ion exchange group & the simple dissolution or mixing group (groundwater undergoes a mixing process) so that the condition of the groundwater is yellow and smells so that it requires a water filter to purify the water. Behind the importance of this water filter lurks the danger if it is not cleaned regularly. The obstacles found in the field are that the water filter cleaning process is still manual, the water filter is not cleaned regularly due to the position of the water filter placement, forgetting to clean and the cleaning process is not practical. The focus of this research is to find out the needs of water filter users (user requirements) and the problems faced by water filter users in the Cibiru area. Researchers used the Quality Function Deployment (QFD) method to redesign a more effective water filter according to the needs of residents in the Cibiru area of Bandung City. The results of the research using the QFD method obtained 7 service attributes needed by consumers and translated into 13 technical requirements in the House Of Quality (HOQ) and 12 priority ranking of water filter designs in the Quality Function Deployment (QFD) table and obtained a new water filter design with a self cleaning system and can be easily disassembled.
Study of Green Supply Chain Implementation in the Sport Shoe Industry in Indonesia to Gain Competitive Advantage Oetomo, Dedy Setyo; Hermawan, Asep; Widowati, Imas
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.872

Abstract

This study examines the implementation of Green Supply Chain Management (GSCM) in the Indonesian sports shoe industry and its impact on the company's competitive advantage. The objectives of the study were to analyze GSCM practices implemented by the Indonesian sports shoe industry, identify factors that influence the success of GSCM implementation, and measure its impact on the company's environmental performance and competitive advantage. The study used a quantitative approach with a survey method on 120 APRISINDO member sports shoe companies. Data analysis used Structural Equation Modeling (SEM) with AMOS software. The results showed that the implementation of GSCM including green purchasing, eco-design, green manufacturing, and reverse logistics had a significant positive effect on environmental performance (β=0.672, p<0.01) and competitive advantage (β=0.583, p<0.01). The main supporting factors for the success of GSCM were top management commitment, green technology capabilities, and collaboration with suppliers. This study provides theoretical and practical contributions to the development of GSCM in the Indonesian sports shoe industry.
Development of UTAUT Model with Hedonic Motivation to Measure the Adoption of E-Marketplace Mobile Application in Indonesia Prakarsa, Graha; Nursyanti, Reni
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.874

Abstract

The development of internet users in Indonesia makes people enthusiastic about using internet services in conducting online shopping transactions using mobile e-marketplaces. This research is motivated by the main problem, namely the absence of measurements in previous studies that measure acceptance of the use of mobile e-marketplaces using the UTAUT model so that application developers can find out what factors can influence users in adopting existing mobile e-marketplaces. market system. in Indonesia. The data processed are 100 respondents who have experience using e-marketplaces on a mobile basis, then analyzed using PLS (Partial Least Squares). This study uses the conceptual framework of the Unified Theory of Acceptance and Use Technology (UTAUT) model. The constructs used in this study are Performance Expectancy, Effort Expectancy, Social Influence, and Facilitating Condition, in addition to the Hedonic Motivation variable. The results of the analysis show that Effort Expectancy and Hedonic Motivation have a significant effect on the actual use of E-Marketplace Mobile users in Indonesia, while Performance Expectancy, Social Influence and Facilitating Conditions have no significant effect on the actual use of E-Marketplace Mobile users in Indonesia. Keywords: : UTAUT, Hedonic Motivation, E-marketplace
Determination of Optimal Fermentation Time in the Production of Liquid Organic Fertilizer from Tempe Liquid Waste with the Addition of Banana Peels Muliati, Lia; Maelani, Rima; Khopipah, Salwa Nur
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.877

Abstract

The tempeh industry uses soybeans as the main raw material to produce the main product, namely tempeh. Based on observations of the local industry, tempeh production waste in the South Margahayu area is very high, because more than one factory produces tempeh waste. Utilization of waste materials as organic fertilizer is one way to overcome environmental pollution problems. Banana peels contain many substances and are beneficial for plants if processed into liquid organic fertilizer, because banana peels contain 42% potassium so that they can strengthen plant stems, fight diseases, and fertilize plants and flowers and fruit trees. This study uses 1 type of stage, namely the liquid organic fertilizer production process. Testing of liquid organic fertilizers made from liquid tempeh waste and banana peels was carried out to determine the suitability between the levels of macro nutrients produced from the liquid organic fertilizer with the standard quality of liquid organic fertilizers based on SNI. The analysis method in this study uses a quantitative method obtained from the results of measuring the levels of nutrients in raw materials and liquid organic fertilizers. The protein content in the results of the tempeh liquid waste test was 0.48%. The C-Organic content on the 7th day was 1.72%. On the 7th day, the nitrogen produced was 0.10%, phosphorus was 0.07%, and potassium was 0.62%. Based on the results of the study, the optimum fermentation time for the production of organic liquid fertilizers was on the 7th day with a total NPK content of 0.79%, C/N of 20 and C-organic 1.72%. The production of POC from tempeh liquid waste with the addition of banana peels has not produced macronutrient levels that are in accordance with the SNI standards for organic liquid fertilizers so that commercial production cannot be carried out. Many factors influence the process of forming this liquid organic fertilizer, including bioactivators, namely effective microorganisms commonly known as EM-4, temperature, sun intensity, humidity, production time and placement in the fertilizer production process.
Process Analysis of Producing Single Mesh Warp Knit Fabric Using a Double Needle Raschel Warp Knitting Machine Permana, Muhammad Indra; Hanif, Ilham Atsir; Hernawati, Resty Mayseptheny
Sainteks: Jurnal Sain dan Teknik Vol 7 No 02 (2025): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i02.875

Abstract

This study was conducted to evaluate the flexibility of the double needle bar Raschel machine in producing a mesh fabric design that is conventionally manufactured using a single needle bar Tricot machine. The research involved adjusting several parameters on the Raschel machine, including the number of needle bar positions, guide bar spacing, gudie bar shogging, and run-in values, in order to produce mesh fabric comparable to that produced by the Tricot machine. Subsequently, the physical properties of the resulting fabric were evaluated and compared to those of mesh fabric produced by the single needle bar Tricot machine, using ASTM standards. The test results indicate that the mesh fabric prduced using the double needle bar Raschel machine exhibit similar physical properties—including fabric weight (GSM), course per inch (CPI), wale per inch (WPI), thickness, tensile strength, tear strength, abrasion resistance, and bursting strength—to those of the fabric produced by the Tricot machine. These findings were supported by T-test results, which showed no statistically significant differences (p < 0.05) across all measured properties. The findings indicate that modern double-needle Raschel machines are capable of adapting to replicate the output of older single-needle Tricot maschines, offering a viable solution for production continuity when legacy equipment is no longer operational.

Page 13 of 17 | Total Record : 161

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