Jurnal Ilmiah Teknik

PERANCANGAN SISTEM PENGGAJIAN EFISIEN BERBASIS UML PADA PERUSAHAAN SKALA KECIL

Arum Tri Iswari Purwanti, Albertus Bayu Aji Priyono — Sun, 05 Jan 2025 00:00:00 +0000

An efficient and accurate payroll system is essential for small businesses to ensure employee satisfaction while maintaining smooth operational processes. This study aims to design and develop a payroll system based on Unified Modeling Language (UML), specifically tailored for small businesses with 50–100 employees. The system includes processes such as employee data collection, salary calculation, validation, approval, payment, and reporting. UML design is utilized to model the system workflow, including use case diagrams, activity diagrams, and class diagrams. The implementation results demonstrate that the system can reduce calculation errors by up to 90% and improve data processing time by 50%. Additionally, the system provides transparent reporting features to support financial decision-making. With its development flexibility, the system can be adapted for further integration, such as attendance modules or tax reporting. This study makes a significant contribution to enhancing the efficiency and professionalism of payroll management in small businesses.

PERANCANGAN SISTEM PEMINJAMAN ALAT BENGKEL OTOMOTIF BERBASIS DIAGRAM USE CASE DAN AKTIVITAS UNTUK MENINGKATKAN EFISIENSI DAN TRANSPARANSI OPERASIONAL

Muhammad Fadly, Ovan Sunarto Pulu — Sun, 05 Jan 2025 00:00:00 +0000

Efficient tool management in automotive workshops is often hindered by manual systems prone to errors, delays, and a lack of transparency. This study aims to design a digital tool borrowing system using use case and activity diagrams to enhance efficiency and accountability. The use case diagram maps the roles of borrowers, administrators, and technicians, while the activity diagram illustrates the detailed workflow, from tool availability checks to returns and damage reporting. The design results show that the system provides key features, such as automated tool availability checks, digital approvals, transaction recording, and damage reporting. The implementation of this system reduces borrowing process time, enhances transparency in tool management, and ensures tools are maintained in good condition. The proposed system not only improves the operational efficiency of workshops but also offers a better user experience. With potential integration of technologies such as the Internet of Things (IoT) and blockchain, the system can be further developed to enable real-time tool tracking and enhance data security.

STUDI TERMAL PADA SEGMEN CETAKAN CROWN PADA MESIN CURING DALAM PROSES PRODUKSI BAN MOBIL DI PT. ELANG PERDANA TYRE INDUSTRY

Christofel Jarot Yudaputranto, Sandy Suryady — Sun, 05 Jan 2025 00:00:00 +0000

The curing process is a stage in car tire molding carried out under high temperature and pressure. One of the key components in this process is the crown mold segment, which functions to shape the tread pattern on the tire. This study aims to analyze the heat distribution in the crown mold segment using Solidworks software, focusing on material specifications, heat distribution patterns, and simulation parameters affecting the results. The material used is Steel AISI 1020. The simulation results indicate an even heat distribution with an initial temperature of 453 K, convection ranging from 179.933°C to 179.967°C on the side area, and 179.916°C to 179.950°C on the tread pattern. Heat transfer rates were recorded as 96,323.28 W through conduction, 898.452 W through convection, and 2.56 W through radiation. Key parameters influencing the simulation include the initial material temperature (453 K), convection coefficient (10 W/(m²·K)), radiation emissivity (0.3), and ambient temperature (300 K).

PENERAPAN KONSEP OPEN SPACE TERHADAP PRODUKTIVITAS PADA KANTOR PLAZA BANK MANDIRI SUDIRMAN

Darryl Hendry Aristo, Ade Syoufa, Amira Wati — Sun, 05 Jan 2025 00:00:00 +0000

Open space is a space that arises because of the need to provide a place for humans to meet and communicate. Open space is the concept of an open workspace without partitions. The main feature of the concept of open space is the absence of chambers and partitions. The interior is modern, with modern amenities that cater to the needs of employees, and common spaces. In addition, there are other elements that support the use of open offices to increase productivity, such as light, air, color, and sound. A good office layout and comfort will affect the work productivity of your company's employees.In this study, the author discusses the application of the open space concept to productivity in the Plaza Bank Mandiri Sudirman office building.The research approach was carried out using a qualitative approach that was arranged narratively. Data collection for this study was conducted through interviews and direct observation in the Bank Plaza Mandiri office building. Use secondary data independently, such as through the internet and journals. Find out how open office design impacts employee productivity at Bank Mandiri Sudirman Plaza Office.

PROTOTYPE SISTEM KETERSEDIAAN DAN KAPASITAS TEMPAT PARKIR MOBIL BERBASIS ARDUINO UNO

Sun, 05 Jan 2025 00:00:00 +0000

The current parking system still uses a manual parking system, vehicle owners still have difficulty finding an empty parking space because they have to go around the parking area so it is less efficient and takes a long time. This study aims to help car drivers save time in finding parking locations and knowing the availability of parking spaces. In this study, there are two types of input used: infrared sensors, which function to measure the capacity of the parking space, and RFID sensors, which are used to detect cards. The data processing process is carried out using Arduino Uno, while the LCD is used to display the number of available parking slots and the location of the slot. In addition, the servo motor functions to open the barrier. This system operates in a way, when a car enters and attaches a registered card, the servo motor will open, and the number of parking slots will decrease. The driver then selects a parking slot, which will be automatically marked as "full" on the LCD screen. When the infrared sensor detects a car that wants to exit, the servo motor will open again, and the number of parking slots on the LCD will increase.

PEMBUATAN APLIKASI BERBASIS WEBSITE TOKO ONLINE MAZHAB CREATIVE MENGGUNAKAN PHP DAN MYSQLSITE

Rani Puspita, Rina Astriani — Sun, 05 Jan 2025 00:00:00 +0000

The rapid development of information technology is encouraging businesses to transform towards digital. Toko Madzhab Creative, as a small and medium business in the field of t-shirt screen printing and sticker printing, faces challenges in increasing efficiency and market reach. This research aims to develop a user-friendly website to simplify the ordering process and increase sales. In creating the Creative Mazhab Shop website, the SDLC method was used, namely by designing, building and testing a PHP and MySQL based website. The research results show that the website developed has succeeded in increasing the efficiency of the ordering process and has the potential to increase sales and market reach of the Madzhab Creative Store. This website can be accessed at https://mazhabcreative.online.

ANALISA PENGARUH SUDUT NOZZLE TERHADAP EFISIENSI TURBIN PELTON SKALA LABORATORIUM

Agung Dwi Sapto, Irvan Septyan Mulyana — Sun, 05 Jan 2025 00:00:00 +0000

Electrical energy is energy that has an important role for society. One of the benefits is for lighting. The current state of electricity in Indonesia is very concerning, especially since the oil and gas resources on earth are very limited, and one day they will run out. Therefore, various studies have been carried out to find energy sources other than oil and gas, as alternative energy sources that can be utilized according to needs. A water turbine is a device for converting the potential energy of water into mechanical energy. This mechanical energy is then converted into electrical energy by a generator. Hydropower is energy obtained from flowing water. The energy possessed by water can be utilized and used in the form of mechanical energy and electrical energy. Utilization of water energy is mostly done by using waterwheels or water turbines that take advantage of the presence of a waterfall or water flow in the river. The Pelton turbine uses a nozzle with an inner diameter of 4 mm and an angle of 60° capable of producing 0.8031 watts of power. These results were obtained at a discharge variation of 0.0002 m3/second. At the time of this test also which produces the greatest efficiency value among other tests, which is 1.231%.

INTERIOR DESAIN UNTUK MENINGKATKAN KENYAMANAN DAN AKSESIBILITAS PADA PENATAAN RUANG PERPUSTAKAAN KOTA BOGOR

Dewi Astuti, Rakhmanita Rakhmanita, Sumaiyah Fitrian Dini — Sun, 05 Jan 2025 00:00:00 +0000

The Bogor City Library plays an important role in creating a strong literacy ecosystem, functioning as a center for community empowerment by providing access to information and skills development. This research aims to analyze circulation patterns and spatial planning in libraries, in order to increase public interest in utilizing existing facilities. Although founded in 1972, the library faced serious challenges, including inadequate space and unattractive facilities, such as a non-functioning multimedia room and a lack of private rooms for discussions. The low literacy rate in Bogor City shows the need for more efforts to increase interest in reading. It is hoped that the "Free Literacy" program can be a solution, but its success is very dependent on library development. By implementing modern architectural designs and innovative elements, libraries can create a comfortable and inspiring learning environment. This research is expected to provide constructive recommendations for developing libraries as effective and inclusive literacy centers. Focusing on the quality of space and human circulation patterns will support optimal visitor experience, making libraries the main pillars in improving literacy and the quality of life of people in the city of Bogor. The synergy between attractive facilities, inspiring space quality, and efficient circulation design will strengthen the role of libraries in social, economic and cultural development.

PENGARUH JENIS WELDING GROOVE TERHADAP KEKUATAN IMPACT PLAT BAJA ASTM A36 MENGGUNAKAN MESIN LAS SMAW

Ariyanto Ariyanto, Tati Noviati — Sun, 05 Jan 2025 00:00:00 +0000

Currently, metal joining with welding process is increasingly used, both in building construction, piping, and machine construction. This is due to the many advantages obtained from joining by welding. The use of the right welding groove will also affect the welding results. The purpose of using welding groove is for the place to fill the welding material and can also strengthen the design of the metal joint. Welding groove plays an important role in improving the design and properties of the joint in the welding process. ASTM A36 welding using SMAW welding current 110 A is carried out with Groove variations, namely VGroove, Square Groove, and Bevel Groove and using E6013 electrodes with a diameter of 2.6 mm. The purpose of this study was to determine the strength of SMAW welding joints on ASTM A36 against the Charphy impact test. the required impact charphy effort results (W) are on V Groove of 73.519 J, Square Groove of 67.43 J, and Bevel Groove of 70.485 J. And produces an impact charphy value (K) on V Groove of 0.918 J / ????????², on Square Groove of 0.842 J / ????????² and on Bevel Groove of 0.881 J / ????????2. The impact charphy value on V Groove with SMAW welding current of 110 A on ASTM A36 carbon steel is the best with the required impact charphy results (W) namely on V Groove of 73.519 J and the impact charphy value (K) on V Groove of 0.918 J / ????????².

PENERAPAN METODE BERT UNTUK ANALISIS SENTIMEN ULASAN PENGGUNA APLIKASI SEGARI DI GOOGLE PLAY STORE

Andriani Marshanda Putri, Widya Khafa Nofa, Dewi Anggraini Puspa Hapsari — Sun, 05 Jan 2025 00:00:00 +0000

Quick commerce services provide shopping convenience with flexible ordering processes unrestricted by time and location, along with rapid delivery, typically within 10–30 minutes. This study analyzes user sentiment towards the quick commerce application Segari, based on reviews available on the Google Play Store. The objective is to develop a system capable of analyzing and categorizing reviews based on user opinions, sentiments, and emotions using the Bidirectional Encoder Representations from Transformers (BERT) method. The dataset of reviews was collected using web scraping techniques and underwent pre-processing steps, including case folding, data cleaning, tokenization, and normalization. The model was trained with a learning rate of 3e-5, 5 epochs, and a batch size of 32. The study achieved an accurate score of 89%, with precision scores of 91% for positive sentiment, 83% for negative sentiment, and 69% for neutral sentiment. This research provides significant insights into user sentiment towards the Segari application and serves as a reference for further development in quick commerce services.