Jurnal Teknologi dan Manajemen

Tensile Strength and Thermal Properties of Polypropylene/Nano-Bentonite Composites with Maleic Anhydride Coupling Agent

Fitria Ika Aryanti, Teguh Budi Santoso — Thu, 01 Feb 2024 00:00:00 +0000

Polypropylene is the most widely used polymer material in the automotive industry due to its properties such as good rigidity, high melting point, chemical resistance, and easy processability. Polypropylene is usually added with a filler, namely bentonite, to make polypropylene which has better mechanical and thermal properties. The coupling agent is added to improve the adhesion of the matrix with the surface so that the composite component has better durability. To improve the ability of the filler material, bentonite is converted into nanoparticles. Bentonite nanoparticles are expected to have better mechanical, thermal, electrical, and optical properties than particles with micro or macro sizes due to their large surface area. Based on the description above, it is necessary to study the effect of using bentonite nanoparticles with a coupling agent in the form of Maleic Anhydride-g-PP (MAPP) on the tensile strength and thermal properties of polypropylene composites. The variables of this study are the composition variation (weight %) of polypropylene, coupling agent (MAPP), and bentonite nanoparticles of 100:0:0, 95:0:5, 90:5:5, 85:5:10, 92:3:5, and 87:3:10. The method used in this study uses a twin-screw extruder tool with a temperature of 190°C and then tested regarding its tensile strength and thermal properties. The results showed that the addition of nano-bentonite tends to cause an increase in the decomposition temperature of the sample but does not increase the tensile strength of the composite, so it only functions as a polymer composite filler. While based on Differential Scanning Calorimetry (DSC) testing, the enthalpy value decreases with increasing concentration of coupling agent.

Design E-Consulting System Using the Waterfall Model

Fajar Daeng Bani, Bayu Prabowo Sutjiatmo — Thu, 01 Feb 2024 00:00:00 +0000

Information technology is currently developing rapidly so that individuals, companies and government agencies can play a role in decision making. The current problem is the lack of optimal reporting on academic guidance activities for students and lecturers. Academic guidance is a process of assistance and assistance given to individuals in developing their academic potential. Academic guidance is given by academic supervisors to students in the academic field during the study period with the aim of providing assistance and advice to students in courses and providing continuous supervision for the smooth running of lectures. The role of technology is a strategic part in the implementation of education in achieving goals by systematically designing an e-consulting system using the waterfall model so that academic supervisors get evidence of concrete reports to report lecturer workload and then students get evidence of academic guidance reports as a requirement to take the final project. This case study explains how the implementation of academic guidance can be carried out and according to academic needs and users effectively by using the waterfall model in tertiary institutions under the ministry of industry Republic of Indonesia.

Analysis and Evaluation of Productivity Using the Marvin E. Mundel Method and the Productivity Evaluation Tree (PET) at PT. YZ

Endang Palupi Sumarto, Elfitria Wiratmani, Fatoni Fatoni — Thu, 01 Feb 2024 00:00:00 +0000

PT. YZ is currently still not optimal in utilizing the resources it has (input) so that the results (output) produced are not in accordance with the target which results in a decrease in company productivity and so productivity measurements must be carried out in the company. Besides that, at PT. YZ has never conducted a thorough productivity measurement during the production process. Therefore, in this study, productivity measurements were carried out with the aim of knowing the results of measuring productivity levels at PT. YZ, to find out the factors causing a decrease in productivity levels and evaluate productivity against measurement results that have low productivity. The proper method for analyzing these problems is to use the Marvin E Mundel method to measure productivity and the Productivity Evaluation Tree (PET) method is used to evaluate productivity issues. In carrying out processing using this method, it is assisted by the Embarcadero-Dev C ++ Software. Based on the results of research using the Marvin E. Mundel method, it was found that company productivity had decreased, namely that in 2021 total productivity was 1.14 and in 2022 total productivity was 1.13. The cause of the decline in company productivity is that the labor factor is not clearly regulated for sanctions and rewards for the company; the raw material factor is the long distance of delivery from the raw material supplier to the production site; and the energy factor has not yet carried out accurate calculations regarding the use of electricity for the process. Production and machine factors have not yet established a machine maintenance schedule. The evaluation results using the Productivity Evaluation Tree (PET) method show that total productivity has increased; in 2022, total productivity was 1.13, and in 2023, total productivity was 1.15. To increase productivity, this was done by reducing input, namely the number of workers. By reducing the number of workers, productivity increases.

Waste Identification Using the Value Stream Mapping (VSM) Method on the PT XYZ Transparent Bar Soap Production Line

Imtinan Imtinan, Bunga Cahyaputri — Thu, 01 Feb 2024 00:00:00 +0000

The production process is an activity to create or increase the function of a good or service by using existing factors such as human resources, machines, materials and money to make it more useful for human needs. PT XYZ is a cosmetic manufacturing services company that has been established for more than 15 years producing quality cosmetics, skincare and beauty soap. However, during the production process there were various problems, namely waste was found. The aim of this research is to identify waste and provide suggestions for improvements to PT XYZ's transparent bar soap production line. The method used in this research is Value Stream Mapping (VSM) by conducting interviews and direct observation as a data collection method. The results of the research that has been carried out are the discovery of waste in the form of transportation, waiting, and defects caused by various factors. These factors include human factors, methods, machines, processes and the environment. From the identification results, several recommendations for improvement were proposed, such as holding training on the use of sealing machines, implementing the 5R culture, routinely checking raw materials, optimizing the use of cutting machines, and routinely monitoring products and employee activities. After carrying out the improvement process, the production time was 2,581.36 minutes with a lead time of 26.29 minutes, compared to the initial condition, which was 4,102 minutes with a lead time of 39.89 minutes. Thus, it can be concluded that after carrying out the improvement process, it is hoped that the production process will run faster than before.

Supply Chain Risk Management Assessment and Strategy: Case Study in a Hospital Pharmacy

Thu, 01 Feb 2024 00:00:00 +0000

Health service providers such as hospitals have a very diverse supply chain in quantity and type, one of which is medicine. Hospital Pharmacy Installation (IFRS) is one of the health support activity units responsible for planning, procurement, management, storage, distribution, use of drugs, equipment, and pharmaceutical services for medical devices related to the distribution of drugs used in hospitals. Pharmacy has several risks that need to be addressed to increase customer satisfaction. This study aims to determine the extent of the implementation of Supply Chain Risk Management, identify risks in supply chain activities, and obtain risk management strategies. In this study, the method used is the assessment of Supply Chain Risk Management and continued the evaluation of the drug chain in pharmaceutical installations with the House of Risk. It is divided into two stages, namely House of Risk Stage 1, which is used to decide the risk in each supply chain, and House of Risk Stage 2, to offers a decision-making strategy for each chosen decision. There are 20 risk events and 20 risk agents in the House of Risk stage 1, and 11 proposed risk management strategies in the House of Risk stage 2. Out of 20 risks identified in stage 1, 11 risks contributed to 80% highest risk, and the top three are drug shortage, inappropriate planning, and unclear doctor’s writing. In stage 2, the three most prioritized strategies are e-prescription implementation, clear signs for LASA drugs, and conducting supplier performance evaluation.

Espduino-32 Utilization in the Warehouse Storage Information System of the Metal Processing Industry Department

Miranty Miranty, Andy Nasriadi — Thu, 01 Feb 2024 00:00:00 +0000

An information technology system basically includes 3 things, namely hardware such as computers and printers, then software, and also the user or user who controls it, or what is usually called brainware. In the industrial world, information systems are needed to facilitate the work carried out by users. Based on the results of observations at the research location, several problems were found, namely the process of searching for items took a long time due to the location of the items not being well organized and the layout of the shelves in the warehouse being quite confusing. The number of items in the warehouse is also not recorded, making the warehouse manager unable to confirm the number of items in the warehouse. Numbering shelves in the warehouse is also a problem because insufficient lighting makes it difficult for users to find the right shelf in a short time. By designing an information system in the form of a website related to the warehouse inventory system which is connected using WiFi connectivity with the Espduino-32 module which controls the relay to turn on the shelf marker lights when and during the user's search for items. The results obtained from the implementation are that the process of searching for items in the warehouse is easier and can be done in a short time with the shelf number information listed in the search system as well as the indicator lights that will light up during the search process

Leadership During ERM Transition Implementation in The Public Sector

Farida Nurfitriana, Purwartiningsih Lisdiono — Thu, 01 Feb 2024 00:00:00 +0000

This research aims to determine the appropriate leadership style in the public sector transition period from implementing vernacular risk management to formal risk management or ERM. This leadership style also considers leadership factors, and implementing a risk culture has become the main factor in implementing ERM in various studies. The research method uses a descriptive qualitative approach, with a research strategy in the form of case studies. The data used is primary data and secondary data. Primary data is the results of interviews with 16 respondents who are parties who participate in managing risks at the ZYX ministry. Secondary data is all internal and external data related to MRPN. The general conclusion is that Agile leadership is needed so that ZYX Ministry can adapt to the VUCA era. Leaders with agility can guide their organizations to become faster, more adaptive, and more productive. Agile Governance is the key to responsive and proactive governance.

Corporate Resilience and Competitiveness Relying on System Digitalization Through Ambidextrous Innovation

Eduard Alfian Syamsya Sijabat, Hosianna Ayu Hidayati — Thu, 01 Feb 2024 00:00:00 +0000

The business process of shipping agencies in the post-pandemic is facing adjustments in providing services to customers. A digitalization system carried out by shipping agencies is a solution to respond to these changes and enable shipping agency businesses to survive. This study explored the extent of the impact of system digitalization on the resilience of shipping agency companies and also on the company's competitive advantage mediated by ambidextrous innovation. This study was conducted on 192 shipping agency companies that are members of shipping agency associations in Indonesia's main ports. Data collection was carried out by distributing questionnaires online then data processing was carried out and analysis was carried out, both descriptive statistical analysis and inferential statistics using WarPLS. The research results showed that the existence of a system digitalization program increases company resilience. Likewise, the existence of a system digitalization program also increases the company's competitive advantage. With a proactive response in the form of ambidextrous innovation from the company, digitalization is increasingly showing a significant influence on the company's resilience and also on the company's competitive advantage. The results of this research provide additional empirical contributions in proving the RBV-based theory of competitive advantage where with breakthrough innovation and adaptation to digitalization of the system which is part of the empowerment of company resources aimed at producing service products that are of unique value and cannot be imitated by competitors so that they have a competitive advantage for the company. The results of this research also provide a practical contribution to the shipping agency industry where it cannot be denied that the system digitalization process followed by ambidextrous innovation will increase the company's resilience and produce competitive advantage for the company as well.

Preliminary Study Analysis of 3D Printing Process Of Artificial Vascular Models Using Additive Manufacturing

Fakhril Husain, I Gusti Bagus Budi Dharma — Thu, 01 Feb 2024 00:00:00 +0000

Manufacturing technology is developing very rapidly, especially in the production process production process. One of them is the emergence of additive manufacturing technology. One type of additive manufacturing is stereolithography (SLA) which is applied in the world of health. Many factors in the success of the print process of additive manufacturing technology. One of the important factors is the process parameter, namely build orientation. In addition, post processing is also an influential factor in production success. This research analyses the best production process by looking at the effect of print position at 0°, 45° and 90°. This research is applied to This research uses experiments by printing the product. printing the product. The material used is a flexible material, Anycubic Though Resin, with the help of a 3D printer, Anycubic Photon Monon. printer Anycubic Photon Mono X. The printing process uses the same parameters in the 0°, 45° and 90° positions. The three positions produce defective results that are not significantly different, with the most optimal results obtained at the 0° position. However, support settings must be considered because they affect the success of the product as well as the amount of resin used. The study also found that the best post processing is resin cleaning without the use of rotating machine and without the use of curing. This is because it will damage the the product and change the mechanical properties.

Literature Review of Inventory with Probabilistic Economic Order Quantity (EOQ)

Annisa Wirrdiana Yuniasih, Nur Rohmah Lufti A'yuni — Thu, 01 Feb 2024 00:00:00 +0000

In the current era of global competition, many trading companies compete to meet consumer needs. This competition causes the level of demand between companies to fluctuate greatly, resulting in problems in the company's inventory system for goods or products. Inventory problems that often occur in a company include over stock, stock out, underproduction, overproduction, back log, and inventory that is not in line with company targets. This inventory problem is one of the things that must be overcome by controlling mathematically using methods that suit needs. One method that assumes this fluctuating demand used a model Economic Order Quantity (EOQ) Probabilistic. Therefore, this study aims to examine the use of Probabilistic EOQ in controlling company inventory and find out how much influence the use of this model has on company inventory. This study uses the method Systematic Literatur Review or SLR with a qualitative model that combines several literature articles as a reference for the study. The study produced several important notes on the use of the Probabilistic EOQ model. This model aims to optimize total inventory costs with the assumption that demand for products or goods is very fluctuating. This model assumes that the data is normally distributed with a waiting time or lead time as a basis for decision making in calculating optimal inventory. Apart from that, other supporting methods are needed to strengthen calculations in overcoming inventory shortages, such as safety stock or safety supplies and reoder point. The research results show that this method can be used on various types of food and non-food items. Apart from that, this method is considered to be able to reduce total inventory cost or total inventory costs.

Cash Flow Statement Analysis on PT Tanaka Citra Gemalang Tangerang Plant 2016-2020 Period

Djodi Hidayat, Kadek Laksmi Chyavani — Tue, 13 Feb 2024 00:00:00 +0000

Based on PT Tanaka Citra Gemalang cash flow statement, it shows that their cash activities from 2016-2020 have an unstable condition, the difference is very significant, this can cause from Covid-19 pandemic that company has been facing. The purpose of this research is because writer want to know how is the cash flow activities condition and how company can develop their cash flow which in cash flow was included an operation activity, investment activity and funding activity. On this research, writer use cash flow pattern analysis and also horizontal finance analysis. The results from cash flow analysis shows that cash flow have a negative result. With this cash balance which always decreasing on the past three years and company was also having a cash deficit on the past two years, it means that the conclucion of this situation is PT Tanaka Citra Gemalang finance situation is not on well finance situation.

Evaluation of The Effectiveness of Die Casting Machines Using Overall Equipment Effectiveness (OEE)

Eko Tamas Prasetio, Adriyani Oktora — Thu, 29 Feb 2024 00:00:00 +0000

PT YKK Zipco Indonesia is a manufacturing company that produces zipper components, namely chains and sliders. The manufacture of slider products goes through several departments, namely die casting, assembling, painting and plating. The process of making slider products begins with the die casting department which carries out the production process using 17 machines. The problem that exists in the die casting department is that the level of productivity is quite low, so an analysis of the effectiveness of the die casting machine is needed. The aim of this research is to evaluate the performance of the production process in order to increase the efficiency and effectiveness of the company as a whole. The method used in this research is overall equipment effectiveness (OEE) and six Big Losses. The Overall Equipment Effectiveness (OEE) method is used to measure the effectiveness of production process machine performance in manufacturing companies using the parameters availability, performance and quality. In OEE there are six big losses which are categorized into 3 main categories, namely quality loss, downtime loss and speed loss. Then an analysis was carried out using the Pareto diagram and fishbone diagram to find the root causes of the problems that occurred. The results of this research, namely the results of OEE calculations on the C – 07 Die Casting machine, obtained an average OEE value of 78.6%. Based on the six big losses calculation, breakdown losses occupy the highest value with a percentage of 23.1%, making it the losses that most influence the value of machine effectiveness.