The demand for batteries is expected to rise in line with the growing need for electric vehicles. As the number of electric vehicles increases, more battery waste will be generated, considering the average battery lifespan is only 10 to 15 years. If batteries are not recycled, this will lead to a significant accumulation of waste. Therefore, it is important to evaluate the ease of battery disassembly. This assessment can help manufacturers design batteries that are easier to disassemble. This study aims to determine the disassembly ease score and provide improvement recommendations using the Ease of Disassembly approach through eDiM and Difficulty Rating. The disassembly process is analyzed using the Ease of Disassembly Metric (eDiM) to evaluate difficulty levels based on standard disassembly operation time, and Difficulty Rating based on the indicators of Accessibility, Positioning, and Force. Based on the analysis results, the most difficult disassembly operations involve removing screws from the top cover, bottom cover, controller circuit, and BMS circuit, as well as detaching the nickel strip. The research findings indicate the presence of disassembly stages with low time values but high preference-based difficulty levels.

Make To Order (MTO) is a manufacturing strategy that executes different orders based on consumer demand. In the MTO strategy, products are produced only when there are orders from consumers. In this MTO system, the production process starts when an order arrives and starts with planning raw materials which takes a long time and causes a long lead time (MLT). Long MLT often causes production delays and forces companies to pay more overtime. Companies must adopt a production system that can fulfill a variety of orders and has a fast response time. In this research, a case study was conducted on a shoe and bag manufacturing company in the fashion industry. This study aims to implement a mass customization manufacturing (MC) strategy to minimize MLT. The MC strategy uses the concept of a production process based on orders and inventory. This study is expected to reduce MLT so that production delays do not occur again. The results of this study indicate that relocation of the customer order decoupling point (CODP) can reduce MLT from 30 days to 26 days. By reducing this, production delays can be overcome. In terms of costs, this production system is lower than before and the profits are higher.

The production line system is an important problem for the majority of manufacturing industries in Indonesia. PT XYZ is manufacturing company focuses on general construction and mining products supplier. Friction Bolt Stabilizer is one PT XYZ’s superior products. The problem in the friction bolt stabilizer production line is unbalanced distribution of work elements. Based on these problems, in this study a solution is provided by comparing the actual production line with the results of line balancing analysis. There are two methods used, namely Ranked Positional Weight and Killbridge Western Heuristic. The result is that the Killbridge western heuristic method produces the best design with a performance level of 91% line efficiency, 9% balance delay, a total of four workstations and a smoothness index value of 401.55 seconds.

Stroke could cause paralysis and reduced body function. In an effort to self-mobilize, a stroke patient needs a wheelchair. Even though the existing wheelchairs have undergone significant development, both in terms of design and technology, the function of these wheelchairs is still limited, to assist users in carrying out their daily activities and there is no wheelchair that functions as a wheelchair. therapy tool. One way to recover from a stroke and help prevent further disability is therapy, both medical therapy and alternative therapy. Therefore, in this study a wheelchair was designed to function as a therapeutic tool by making circular movements carried out by the arms, hands and legs as well as movements away from and towards the chest carried by the arms and hands so that the muscles could be strengthened, thus helping the recovery process from stroke, especially those that attack the hands and feet of stroke sufferers. The method used in the design is design thinking that focuses on humans, knowing user needs, and innovating according to user needs. The design thinking process consists of 5 stages: empathize, define, ideate, prototype, and test. In its design, wheelchairs are also made to consider ease of installation and use.

The use of an internet network in an organization cannot be divorced from the numerous types of challenges that occur inside it, particularly those connected to network service quality., In addition, the high demand for service users has become a severe issue where people believe that the network needs to be optimally utilized. This research examined the connection between ISP service quality and B2B customer loyalty to business Internet services. This work employs Structural Equation Modeling with Partial Least Square methodology for SEM data analysis (PLS-SEM). The research revealed a favourable and statistically significant correlation between BP trust and BP loyalty. Because BP believes in the quality and service of ISP providers, they are typically loyal to BP. In addition, NQ and SP have a sizeable direct association with client loyalty. Moreover, this research showed that QSTS had a good and substantial effect on BP's level of trust. Meanwhile, CSTS, NQ, and SP have a favourable and significant impact on BP value.

Washing clothes is an activity that is often done by people in the world. However, detergents sold in the market are harmful to human skin and aquatic ecosystems in rivers. Therefore, this research focuses on environmentally friendly detergents that can minimize the impact on the environment and humans. This study aims to develop standard operating procedures (SOP) in the production of environmentally friendly detergents. This was conducted by developing the initial SOP design, simulating the initial SOP, and identifying problems. Then, followed by improving, designing, and simulating the final SOP. The results of this study acquire SOP that generates products with better consistency and quality.

PT. XYZ is engaged in the production of snacks. This company makes products from raw materials to finished products. In the packaging section using a machine called CingFong, the problem that often occurs in the packaging section is that there is often a buildup of production materials due to waiting for machines that have not finished maintenance so that it can reduce the productivity of this factory. Overall the method used is Preventive Maintenance by looking for Mean Time To Failure (MTTF) to identify critical components in Cingfong engine parts. From the data processing that has been done, it is known that the Clutch, Blade and Emergency Stop are components that fall into the category of critical components with a total Cumulative Downtime of 70.3%.

Shallots (Allium cepa var ascalonicum L.) is one of the most popular food additives in Indonesia. These ingredients are used to add flavor to Indonesian cuisine. The increase in community needs caused by the increase in population has an impact on increasing the demand for shallots every year. This increase also occurred in Bantul Regency. The demand for shallots in Bantul is not accompanied by a balance in the amount of supply obtained from shallot-producing areas. This is because most farmers in Bantul Regency only plant shallots in the dry season. Therefore, this study seeks to propose how to balance the supply of shallots by farmers with market demand to increase farmers' profits. This study uses a dynamic system simulation approach with the help of Powersim studio 9 software. The first step is to build a Causal Loop Diagram (CLD) to see the causal or reciprocal relationship between variances and stock-flow diagrams to compile a mathematical formulation of the system model. dynamic. The simulation results are then validated to determine the credibility of the model. After the model is declared valid, 3 (three) scenarios of implementing the strategy in the shallot supply chain model will be generated. The best model scenario simulation results are scenario 1 (one), namely by replacing the use of tuber seeds in all activities.

Emergency Room (ER) at RS Tingkat III Brawijaya is the first work unit that patients visit when they need first aid with various complaints. Kinds of patients in emergency medical services RS. Tingkat III Brawijaya are patients at risk of dying who require rapid treatment, patients not at risk of dying but requiring rapid treatment, and patients with non-critical and non-urgent conditions. The demands of time and professionalism from the emergency room health workers, that are the doctors and nurses when on duty, can have implications for the emergence of physical and mental burdens, including muscle pain, headaches and stress. This research purposed to analyze the physical and mental workload of emergency room health workers using the Cardiovascular Load and NASA TLX methods. The calculation results show that 5 health workers have a CVL percentage above 30, which is a repair that is needed but not urgent. Then with the NASA-TLX method, it is known that 21 health workers have a High workload and 2 others have a Very High workload category.

Transportation and distribution activities require companies to have careful transportation planning to maintain resource efficiency. One form of planning in the transportation is planning the route and the number of vehicles. The research output is to get the best shipping route from each transportation in the form of the smallest shipping cost, delivery distance and shortest time. The approach used to determine the best route is the genetic algorithm (GA) method. In the application of GA in finding routes according to the objective, it gives the best results. From the results of the study, it was concluded that the GA algorithm was able to produce the best route effectiveness of 35.5% with a minimum distance of 76.4 km with the route 1-16-7-14-13-17-21-22-6-19-18 - 3-23-9-19-15-24-4-15-20-8-11-2-25-5-2 and a travel time of 4 hours 51 minutes and a fee of Rp. 213,000 with a delivery route on the test.