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This study aims to improve the effectiveness of facility arrangement at Pabrik Oncom Bu Nana by analyzing interactions among production activities and designing spatial layouts based on their priority levels. The current layout presents several critical issues, particularly because the equipment sanitation area is combined with the toilet, creating a significant risk of contamination and reducing hygiene during production. In addition, irregular material flow and excessive worker movement lead to inefficient work processes and may affect the quality of the final product. To address these issues, this study employs the Activity Relationship Chart (ARC) to evaluate the functional closeness among production areas, as well as the Total Closeness Rating (TCR) to determine facility placement priorities based on the intensity of inter-stage relationships. The results of the ARC analysis indicate that the fermentation room has the strongest link to the main stages of oncom production, requiring its placement to be closer to the preparation and molding areas. Findings from the TCR further emphasize that fermentation should become the primary focus in the layout redesign. Based on both methods, a more organized layout design is proposed by relocating the fermentation room to the beginning of the production flow, separating the toilet and sanitation room into two distinct areas, and restructuring the storage, molding, and drying spaces. This redesigned layout is expected to enhance cleanliness, improve material flow, and strengthen the operational effectiveness of Pabrik Oncom Bu Nana.

PT Mandiri Banana Indonesia still requires further development and arrangement of its layout and facilities to enhance the efficient and optimal use of land. This study aims to determine whether the existing layout at PT Mandiri Banana Indonesia is effective in supporting operational flow and the uninterrupted progression of the production process. The research adopts a quantitative descriptive approach, which is used to measure the correlation between activities through the Activity Relationship Chart (ARC) and Total Closeness Rating (TCR) methods. These methods enable the analysis to be presented in a measurable and objective manner as a basis for improving the facility layout. This study proposes a new layout design for the main production area and supporting facilities. The proposed layout is based on the results of ARC and TCR analyses, which indicate several critical spatial interrelationships among the facilities. Based on the findings and discussion regarding the application of the Activity Relationship Chart (ARC) and Total Closeness Rating (TCR) in designing the facility layout at PT Mandiri Banana Indonesia, it may be inferred that layout improvement exerts a significant impact on enhancing workflow efficiency and the overall work environment. The proposed alternative layout is expected to achieve a safer, more hygienic, and more productive spatial arrangement by establishing a clear separation between the production zone, administrative zone, and supporting areas.

The study aims to improve the passion fruit syrup production system at Harisma Home Industry, which has been hindered by an inefficient facility layout and complicated raw material flow. These issues lead to longer processing time, higher operator workload, and reduced production capacity. To solve this, the research uses the Activity Relationship Chart (ARC) and Total Closeness Rating (TCR) to evaluate and redesign the layout. TCR results show that the Raw Material Warehouse has the highest priority with a score of 119, requiring an Absolutely Important (A) relationship with the Production Room. The Parking Area and Waiting Room also fall into the Absolutely Important category, as they support smooth movements of materials and visitors. Meanwhile, the Toilet has a Very Important (E) relationship with the Waiting Room due to comfort and accessibility needs. Based on these proximity requirements, a new layout was designed by placing the Raw Material Warehouse next to the Production Room to create a faster and more efficient material flow. Other facilities were rearranged to minimize unnecessary movement. This new layout is expected to streamline processes, reduce congestion, and enhance overall capacity and operational performance.

Businesses build trademarks to promote products or services while maintaining their reputation and competitiveness. However, the practice of using well-known brands without the license owner's permission is still found. The case of counterfeiting the Arc'teryx brand by PT ATX Asia Sport Products demonstrates a violation of the exclusive rights of the brand owner. This study aims to analyze law enforcement against the circulation of counterfeit Arc'teryx products in Bali based on Law Number 20 of 2016 concerning Trademarks and Geographical Indications and review the role of the TRIPs Agreement in protecting brands in Indonesia. The method used is normative with a literature review of laws, books, journals, and literature related to unauthorized trademark infringement. The results show that the use of the Arc'teryx brand without official permission confirms the weak supervision and law enforcement of foreign brands that have not been registered in Indonesia. Although the first-to-file system applies, Indonesia still provides legal protection for foreign brands through its membership in the Paris Convention and the TRIPs Agreement. This study emphasizes the need to strengthen the role of the Directorate General of Intellectual Property Rights (DJKI), the Commercial Court, and increase public legal awareness to prevent trademark infringement and create legal certainty for rights owners and consumers.

This research was conducted to evaluate the weld joint quality of V-groove and double V-groove configurations on ASTM A36 low carbon steel using the Self Shielded Flux-Cored Arc Welding (FCAW-SS) method. ASTM A36 was selected as the base material due to its favorable mechanical properties, excellent weldability, and wide application in construction and manufacturing. The welding process was carried out on steel plates with a thickness of 10 mm using E71T-1C wire, under controlled parameters of 140 A current, 24 V voltage, and 1G welding position. The weld quality was assessed through Dye Penetrant Testing (DPT), tensile testing, and bending testing. The Dye Penetrant Testing DPT results showed that the double V-groove joints exhibited fewer and smaller surface defects compared to the V-groove joints, indicating better weld homogeneity. Tensile testing demonstrated an average maximum strength of 277.645 MPa for the V-groove and 301.904 MPa for the double V-groove, reflecting an improvement of approximately 8.7% in the double V-groove. The bending tests revealed that the double V-groove joints were able to maintain structural integrity without significant cracks, while the V-groove joints tended to show defect indications under bending loads. Based on these findings, the double V-groove configuration is considered superior in terms of both strength and toughness, and therefore recommended for structural and manufacturing applications requiring high-quality joints in ASTM A36 low carbon steel.

This study aims to analyze the welding results between two commonly used methods, namely Gas Tungsten Arc Welding (GTAW) and Shielded Metal Arc Welding (SMAW), using radiographic testing methods. Welding is an important process in industry that affects the quality and strength of metal joints. In this study, we will examine the quality of welding results from both methods through radiographic testing, which serves to detect defects in welded joints. The GTAW method is known for its cleaner results and minimizes defects, while SMAW is often used because of its convenience and lower cost. The welding process is a crucial factor in ensuring the durability and performance of metal structures, and selecting the right welding method is essential for specific industrial applications. This study will compare the two methods based on the results of radiographic and tensile tests, evaluating factors such as weld strength, defect occurrence, and structural integrity. The analysis will also examine the advantages and disadvantages of each method in terms of weld quality, cost-effectiveness, and practical applications in different industries. It is hoped that the results of this study can provide deeper insights into the selection of the right welding method for industrial applications, as well as contribute to the development of welding technology. Furthermore, the findings will support improvements in quality control and provide a scientific basis for future welding practices in various manufacturing sectors.

Welding is one of the most essential metal joining processes in manufacturing, construction, and industrial applications, where Shielded Metal Arc Welding (SMAW) remains widely used due to its flexibility, cost-effectiveness, and ability to be applied in various welding positions. This study aims to analyze the effect of welding position variations on the mechanical properties of SS400 steel, particularly in terms of tensile strength, bending strength, and microstructural characteristics. The experimental method was conducted using 6 mm thick SS400 steel with E6013 electrodes of 2.6 mm diameter in three welding positions: 1G, 2G, and 3G. The welded specimens were then tested through tensile testing (ASTM E8) and bending testing (ASTM E190-14), followed by microstructural analysis in the weld metal area. The results revealed that welding position significantly affects the mechanical properties of welded joints, where the 3G position produced the highest tensile strength of 188.48 kgf/mm², while the 2G position produced the lowest tensile strength of 113.70 kgf/mm². Conversely, the bending test showed that the 2G position provided the maximum bending strength of 1394 kgf/mm², followed by 3G and 1G positions. Microstructural observations demonstrated variations in the distribution of ferrite, pearlite, martensite, and cementite phases across different welding positions, with the dominance of ferrite and pearlite in the 3G specimen contributing to higher tensile strength, while the dominance of martensite and cementite in the 2G specimen enhanced hardness and bending resistance. Overall, this study confirms that welding position plays a crucial role in determining the quality of SS400 welded joints, and the findings are expected to serve as practical guidance for industry in selecting appropriate welding positions for construction needs, while encouraging further research with additional variables such as electrode type, welding current, and post-weld heat treatment to achieve a more comprehensive understanding.

The welding process is a crucial element in the fabrication and manufacturing industries, serving to join two or more components into a single unit. The quality of the weld is very important, but defects such as undercut, underfill, and spatter are often still found. This study aims to analyse welding defects caused by voltage variations and differences in welding wire on T-joint fillet welds using the Gas Metal Arc Welding (GMAW) method on 8 mm thick plates. The voltage variations used were 20.6 V, 23.7 V, and 27.9 V, with welding wires EN ISO 14341-A: G 42 4 M21 3Sil and EN ISO 14341-A: G 46 4 M21 Z 3Ni1Cu. The research method used visual inspection and penetrant testing to identify types of welding defects. The research results showed four types of welding defects from visual inspection: spatter, undercut, weld deposit thickness, and excessive throat thickness, and two from penetrant testing: undercut and end creater pipe. Based on the two tests conducted in this study, it can be concluded that the optimal welding results were achieved at a voltage variation of 23.7 V using the EN ISO 14341-A: G 46 4 M21 Z 3Ni1Cu, as it had the fewest welding defects. The worst welding results were obtained at a voltage variation of 20.6 V using both types of welding wire, as this welding process resulted in numerous welding defects in both visual and penetrant testing. This study provides insights that proper welding parameter settings significantly influence the quality of the welded joint.

Material handling is a term for transportation or transport activities carried out by industrial companies, which involve moving raw materials, semi-finished goods or finished goods from one location to another predetermined location. Apart from that, material handling is also important in quality control, where 3-5% of damaged goods are caused by material handling. The aim of this research is to identify and redesign the layout conditions of concrete production facilities at PT. XYZ. The method of this research is the Activity Relationship Chart (ARC), Activity Relationship Daigram (ARD) and Total Closeness Rating (TCR) methods. In the current layout conditions, the sand warehouse and crushed stone warehouse work stations should be close to the two hoppers, namely the batching plant hopper and the asphalt mixing plant hopper, but in the actual conditions these two work stations are not close to each other. In the new facility layout there are changes and relocation of work stations based on the degree of proximity. Future research is expected to consider the amount of time generated during the material handling process and also consider cost aspects during the process of designing changes to the facility layout.

This study aims to describe the implementation of Shielded Metal Arc Welding (SMAW) techniques in practical training conducted by cadets of the Teknika Study Program at AMN Cilacap. The method employed is descriptive quantitative using a Likert-scale questionnaire (1–5). The research sample consisted of 40 second-semester cadets selected through purposive sampling. The questionnaire was structured based on four aspects: theoretical understanding, practical skills, compliance with safety procedures, and perceived obstacles. The results show that theoretical understanding was at a high level (average score of 4.1; 87.5%), practical skills were categorized as adequate (75%), and compliance with safety procedures was very high (90%). However, obstacles were still significantly perceived, with an average score of 2.88 and only 27.5% of respondents giving positive responses. The main obstacles faced by cadets included limited welding equipment, insufficient training in specific welding positions, and inadequate practice time. This study recommends improvements in practical facilities, diversification of training in various welding positions, and more effective management of practice schedules to support optimal learning outcomes.

The rapid advancement of technology today encourages every human being in matters related to the field of industrial or machinery needs, which has a function as a power transfer from the driving force (diesel engine or electric motor dynamo) to the engine to be driven, Gearbox is a component of a machineconsisting of a house for gears, In one of the uses of machine construction and in some components often involves professional welding techniques, one of which is welding using electric arc / Shielded Metal Arc Welding (SMAW), the selection of appropriate welding current parameters affects the strength and changes in the mechanical properties of a metal. The current used is too low will cause the difficulty of igniting the electric arc, and the electric arc that occurs is unstable, this test wants to examine using high carbon steel, namely JIS S45C STEEL (ASTM 1045) in the application for gears on the Gearbox through SMAW weldingusing electrodes (E11018-G) Ø3.2 mm with current variations of 90 A, 100 A and 110 A, and see its mechanical properties of NDT testing, tensile testing, and impact testing (charpy). The NDT test results obtained no indication of cracks in the variations of 90, A, 100 A and 110 A and the porosity indication only occurredin the variation of 100 A, in the Tensile test test obtained good results in the current variation of 90 A and the less good occurred in the variation of 100 A. In the Im test test, the results of the NDT test were obtained.

Grade A steel plates are commonly used in marine and offshore structures due to their high corrosion resistance. This study investigates the effect of bevel angle variations (30°, 40°, and 50°) and the use of ceramic backing on the mechanical properties and welding defects of Grade A steel using the Shielded Metal Arc Welding (SMAW) method. Welding was conducted with four-pass multipass welding. An experimental approach was employed, including macro visual inspection, dye penetrant, tensile, and impact testing. Results showed that specimens without ceramic backing (P1) had more defects such as incomplete penetration and spatter compared to those with backing (P2). All specimens met ASTM E23 impact standards (average 23.9–24.1 J/mm²). Tensile tests revealed that ceramic backing improved strength, with the highest UTS (576.1 MPa) and elongation (25%) found.

This study aims to apply integral calculus methods to calculate the volume and arc length of an ice cream cone design shaped like a flower petal. The cone design is modeled using a quadratic function derived from three reference points on the petal curve. Using the solid of revolution method around the y-axis, the calculated petal volume is 150.8 cm³, and the arc length is 7.14 cm. The results demonstrate that calculus-based modeling supports efficient material usage while enhancing aesthetic and functional aspects of packaging. This research highlights the connection between mathematical concepts and practical product design in the food industry