Publication Search

The advancement of Industry 4.0 demands production systems to operate more efficiently, adaptively, and securely in facing global challenges. One promising technology that addresses these needs is the Digital Twin (DT), a digital representation of physical systems that enables integration between the real and virtual environments. Through DT, production processes can be modeled, monitored, and tested in real time, allowing for evaluation and optimization before implementation in actual systems. This study aims to explore the effectiveness of DT in modeling automated industrial systems, particularly in relation to improving production efficiency, quality control, energy savings, and operational safety. The research employed an experimental approach based on simulation within a robotic production line consisting of machines, sensors, actuators, and conveyors. The research stages included identifying system components and workflows, developing a DT model that integrates physical and virtual layers with Internet of Things–based data connectivity, and conducting simulations representing diverse operational scenarios. The findings indicate that DT implementation enhances operational efficiency, reduces production errors, and optimizes energy utilization. Furthermore, DT proves effective in strengthening safety aspects by enabling early detection of potential disruptions and providing preventive recommendations before significant impacts occur. Compared to conventional simulations, DT offers a more realistic, adaptive, and relevant approach to the needs of modern industry. The implications of this study highlight DT’s strong potential to become a new standard in the development and control of automation-based production systems, driving the creation of smarter, more efficient, and sustainable industries.

HIS has a major role in managing health data and information applied through Electronic Medical Records (EMR). EMR facilitates the analysis of health data in patients, decision-making by health care providers, disease mapping, helps identify disease patterns, and maps the spread of the disease. HIS supports the creation of telemedicine services through the concept of telemedicine.  This study uses the Narrative Literature Review (NLR) method on the concepts of Health Information Systems (HIS) and Telemedicine. Integrating HIS and Telemedicine provides promising opportunities for healthcare improvement, offering data accessibility, and efficient remote consultation. However, addressing privacy, security, infrastructure, and regulatory challenges is critical to the successful implementation of such integrations. Collaborative efforts between healthcare providers, policymakers, and technology developers are critical to ensuring the ethical and effective implementation of integrated systems.

This study aims to analyze the financial performance of PT Telekomunikasi Indonesia Tbk during the 2020-2022 period in terms of liquidity, solvency, activity and profitability ratios. The type of research used is descriptive quantitative research. The type of data used is quantitative data and the data source used is secondary data. The data analysis technique used in this study uses financial ratios. The results of the study show that the financial ratios of PT Telekomunikasi Indonesia Tbk during the period studied show unfavorable performance. The liquidity ratio shows that the company has not maximized its short-term obligations. The solvency ratio shows that the company has the ability to fulfill its long-term obligations. The activity ratio indicates that the company has not been able to utilize and manage its assets to increase sales. Profitability ratios based on ROA and ROE analysis in unfavorable conditions indicate that the company has not maximized in generating satisfactory profits and has not been efficient in the use of capital and returns on net income on capital invested by the company owner. But the NPM analysis shows that the company is able to generate good profits.

Micro-enterprises play an important role in the regional economy but often face obstacles in financial management and marketing strategies. A lack of understanding in financial management causes inefficiency in capital management, while minimal use of digital technology in marketing limits business competitiveness. This community service program aims to increase the capacity of micro-enterprises in Brangjan Village, West Ungaran District, Semarang Regency through financial management training and digital marketing strategies.The methods used in this program include socialization, training, and direct assistance in simple financial recording, working capital management, and the implementation of digital marketing strategies using social media and e-commerce platforms. The results of this activity show an increase in participants' understanding of financial management and their ability to implement digital marketing to expand market reach. With this training, it is hoped that micro-enterprises in Brangjan Village can develop further, become more competitive, and achieve long-term business sustainability.Additionally, the training on simple financial management provided participants with an understanding of transaction recording and the importance of cash flow in maintaining business operations. In terms of digital marketing, participants were trained to utilize social media and e-commerce platforms such as Instagram, Facebook, and Tokopedia to introduce their products to a wider market. Moving forward, it is hoped that participants will be able to leverage this knowledge to optimize their revenue and expand their customer base. This program also contributes to increasing digital and financial literacy for micro-entrepreneurs in the village. Overall, the training aims to create a more sustainable and efficient business ecosystem, which in turn can enhance the competitiveness of micro-enterprises at the local and regional levels.

Public street lighting, also known as street lighting, refers to the outdoor lighting systems used to illuminate public roads. An effective street lighting system plays a crucial role in enhancing safety and security for pedestrians, cyclists, and motorists by providing improved visibility of the road and surrounding terrain during nighttime hours.  The primary focus in street lighting planning is on economic factors. An analysis of light sources has highlighted the economic advantages of utilizing light emitting diodes for public street lighting. This choice proves to be more efficient when implemented in a sustainable manner. The installation of public street lighting can be the optimal solution to address the issue of inadequate lighting in the village of Pedurenan Gunung Sindur Bogor, ensuring enhanced comfort and security during nighttime activities. The lighting installation process commences with a thorough examination of the site, followed by diligently arranging and design of the electrical installations for the lighting system. Finally, the planned design was carried out and implemented. The implementation of public street lighting is a collaborative effort between college students and youth residents in the village. The outcome of this community service initiative is the implementation of public street lighting installations that offer optimal illumination, ensuring the convenience and safety for all people accessing the roads.

Quantum computing has emerged as a revolutionary paradigm, holding immense potential to solve complex problems that classical computing struggles to address. This study explores the application of quantum computing in cryptography, with a specific focus on two major quantum algorithms: Shor’s algorithm for large number factorization and Grover’s algorithm for unstructured database searching. The main objective of this research is to compare the performance of these quantum algorithms with classical cryptographic methods in terms of computational efficiency and time. Shor’s algorithm, which can factorize large numbers in polynomial time, presents a significant threat to the security of public-key cryptosystems such as RSA, which rely on the difficulty of factoring large numbers. On the other hand, Grover’s algorithm offers a quadratic speedup for searching unstructured databases, making it highly relevant for symmetric key cryptography systems like AES. In this study, simulations of both algorithms were conducted using quantum simulators to assess their speed and effectiveness in solving cryptographic challenges. The results demonstrate that quantum algorithms significantly reduce the computation time compared to classical methods, with Shor’s algorithm efficiently solving factorization problems and Grover’s algorithm accelerating key searching processes. However, while these quantum algorithms show promise in improving cryptographic systems, the implementation of large-scale quantum computers remains a challenge. This research highlights the potential of quantum computing to revolutionize data security and underscores the need for further development in quantum algorithms and the transition to quantum-resistant cryptographic systems to safeguard against the threat posed by quantum computers.

In addition to being a means of enhancing and developing self-quality, community development aims to increase the independence of both individuals and groups. It is strongly anticipated that community organizations will exist and oversee the accomplishment of institutional goals; nevertheless, their human resources must possess the flexibility to quickly seize any presented chances. In order to achieve strategic and sustainable goals where the principle of benefit will return to the community/ummah, waqf serves as a middleman for those who have more money to donate to community projects. This is in addition to the fact that waqf charity is itself a religious command.So the purpose of this service is to provide training and assistance on how to manage waqf money and waqf assets properly and productively according to the muwakif's objectives. This waqf collection and management assistance is carried out using the counselling method through several stages, including, 1) Activity programme planning; 2) Implementation of the activity plan 3) Implementation of activity evaluation and reporting. The goal of this help is to manage waqf funds efficiently and effectively while also accelerating the rise of waqf earnings. Senior students, Pesantren administration, and Baitul Wakaf Hidayatullah Gresik management participated in this exercise..

The economic sector plays a key role in the well-being of the Indonesian society. The increasingly competitive economic growth poses challenges for Micro, Small, and Medium Enterprises (MSMEs) in recording financial transactions. This research aims to engage business practitioners in adapting to the development of digital technology through training on the usage of the Qasir Point of Sales application. This application is designed to facilitate business owners who want to manage their businesses digitally more easily. The research methodology involves three stages: preparation, including an in-depth analysis of the specific needs of MSMEs related to accounting and the use of the Qasir application; implementation, with direct assistance in creating and configuring the Qasir application to ensure alignment with the specific business needs of the two MSMEs; and evaluation, ensuring a good understanding and measuring the impact of the training. The conclusion emphasizes the success of the training and the importance of continuous adaptation to technological and business developments. It is expected that this will have a positive impact in supporting efficient and sustainable accounting records in UMKM Zulich Clean and Care and Bon’s Laundry.  

Executive Information Systems (ISE) have become an integral part of modern corporate management, providing executives with relevant and immediate information to support decision making. This journal discusses the implementation of the Executive Information System in the employee payroll process using the Microsoft Visual Studio 2010 development environment and SQL Server database. This research includes the design, development and implementation of an Executive Information System application for the employee payroll department. The system development methodology focuses on requirements analysis, application design, coding, testing, and implementation. Microsoft Visual Studio 2010 is used as the primary development environment, providing powerful tools for building intuitive and efficient user interfaces. SQL Server database is used as an integrated and secure data storage. This application is designed to manage payroll information, including employee personal data, salary history, salary deductions and bonuses. The advantages of this system include the ability to provide real-time information to executives, increase the efficiency of human resource management, and support faster and more accurate decision making in the context of employee payroll.

The problem phenomenon that the author examines is related to the transition of BP-PAUD dikmas which was transferred to the Mobilizing Teachers Center on the issue of budget management human resources, which is still not effective because the Mobilizing Teachers Center handles all levels of schools, including Kindergarten/PAUD, Elementary, Middle School, High School, Vocational School and SLB, whereas Previously, BP-PAUD Dikmas handled only one level, namely TK/PAUD. This research aims to find out how accountable financial management is at the North Maluku Province Teacher Mobilization Center. The method used in this research is a qualitative approach. Data collection techniques in this research are through observation, interviews and documentation studies. The results of this research show that the North Maluku Province's financial accountability center is effective, efficient and accountable because the budget implementation process is transparent and accountable in accordance with applicable rules and regulations. And the achievements of the program / activity in accordance with the program/activity implementation plan and budget of the North Maluku Provincial Mobilization Teacher Center and the Performance Agreement of the Head of the North Maluku Provincial Mobilization Teacher Center

The conversion of agricultural land in large urban areas like Jakarta has the potential to threaten food security, therefore a breakthrough in the form of an efficient urban farming model is needed. This research aims to formulate a conceptual model of an automatic irrigation system integrated with a greenhouse or greenhouse that utilizes rain water harvesting as a solution for changing the function of agricultural land in urban areas. The research method uses a literature study by examining references from 12 scientific journals and 3 textbooks related to the topic of agricultural land conversion, agricultural irrigation systems, rainwater harvesting, and the greenhouse concept. The results of the conceptual model formulation show that rainwater collected in an underground reservoir can be utilized optimally and sustainably through an automatic irrigation system to supply the water needs of agricultural land in a greenhouse on the roof of a building. This model has the potential to be a solution for changing the function of agricultural land in urban areas while supporting food security. Further studies are needed regarding specific soil moisture for various types of plants as well as direct model testing.

This study aims to develop the use of Microsoft Excel for calculating the realization of product delivery at Bottled Water Companies. The research method that the author uses is descriptive qualitative. The results of this study indicate that using Microsoft Excel to calculate product delivery realization will be more effective and efficient than doing it manually. Based on several stages of data collection, Microsoft Excel is considered to be able to facilitate work related to numbers in bottled water companies.    

This study focuses on solving the green economic load dispatch problem by considering the presence of green energy sources, including wind energy and solar power plants. The main objective function of the whole study is to minimize the total fuel cost (TFC) of all the thermal generating sources (TGSs) in the system. Moreover, the multiple selection of all TGSs is also evaluated. Fire hawk optimization (FHO) and the Zebra optimization algorithm (ZOA) are applied to solve the problem of achieving the best TFC value and satisfying all the constraints involved. The results indicated that ZOA can achieve a better optimal solution compared to FHO. Particularly, the results obtained by ZOA are completely superior to FHO in all comparison criteria at two load demand levels, such as Best TFC value (Best.Cost), Average TFC value (Aver.Cost), and Maximum TFC value (Max.Cost). On top of that, ZOA is the only algorithm of two applied ones providing the fast convergence capability to the optimal value of the main objective functions in two cases of load demand levels. Therefore, ZOA is an efficient search method to deal with such GELD problems.

This research discusses the main forms of handling of divorce cases that occur internationally. The aim of this research is to identify and comprehensively analyze the main challenges in handling international divorce cases, seen from the perspective of international private law. The main challenge is identifying and overcoming legal obstacles that arise when the parties involved come from different jurisdictions. These factors include differences in private international law, legal norms, and complex legal procedures. In addition, cultural and language differences can complicate the process of handling divorce cases. Different jurisdictions and private international law procedures may also affect the rights and obligations of the parties involved. Therefore, a thorough understanding of these differences is essential to ensure fairness and effectiveness in the resolution of international divorce cases. By detailing these challenges, this research aims to contribute to further understanding of the complex legal issues in the handling of international divorce cases and unlock the potential for developing more coordinated and efficient legal frameworks in cross-border contexts.

The presence of this independent learning curriculum is a challenge in itself for teachers in 3T (Frontier, Remote and Disadvantaged) areas, including at SD Inpres Tomra, which is an area classified as a border area. Frontier, Remote and Disadvantaged Regions are the outermost regions in Indonesia, basically there are 122 regions in Indonesia that are included in the 3T region, one of which is Southwest Maluku Regency, Pulau Letti District. The aim of community service is to add new understanding to the teachers at SD Inpres Tomra regarding the application and implementation of the independent learning curriculum in elementary schools. Methods Used This community service activity is carried out based on the following stages: Pre-activity, 2). Implementation of Activities, 3). Post-Activity. Teachers in border areas, especially at SD Inpres Tomra, really need socialization about the independent curriculum so they can increase their insight and knowledge about the implementation of the independent learning curriculum. Based on the results of the socialization carried out, there is an increase in teacher understanding and in-depth knowledge about the independent learning curriculum and its implementation in elementary schools so that the learning process can run effectively and efficiently.

Human Resources are the main calculation in achieving organizational goals strongly and efficiently. Organizations must be able to carry out supervision well to achieve ideal business implementation. Every organization generally expects achievements from its representatives because the organization is given the authority to make presentations. The aim of this research is to find out and analyze whether career development and discipline moderated by rewards have an effect on the performance of Informa Queen City Semarang employees. The method used is a quantitative method. The data collection techniques used were literature and questionnaires. The results of this research are that career development has no effect on the performance of Informa Queen City Semarang employees, discipline has a positive effect on the performance of Informa Queen City Semarang employees, career development and discipline simultaneously influence employee performance through rewards.

With the development of increasingly advanced and developing technology, there are currently many online buying and selling sites where many online sellers are combined into one site which can make it easier for consumers to buy the goods they want with the many attractive promotions or services they provide. to consumers. From an economic perspective, as trade in traditional markets and modern markets increases, this can create job opportunities for many people. More people choose to shop at modern markets because they are more efficient. The existence of e-commerce has become a threat to traditional market sellers, one of which is a decrease in interest and fewer visitors to buy their products. In this analysis we use the theory of social change. In this theory of social change there are several theories, one of which we take is the conflict theory discovered by Karl Marx. With the role of conflict, it creates social change and order in society. In this modern era, technology is increasingly advanced and can make all work or transaction activities easier. Many people have experienced a shift in shopping places, those who initially shopped at traditional markets are now moving to modern markets.

Until now, there are still many who are afraid to start a business, including online business, so a real manifestation of a successful businessman has high self-efficacy/ability in starting a business. Apart from having the ability, a businessman must also be able to understand marketing planning and strategy. well in developing a business so that the business succeeds as expected, therefore the purpose of this research is to find out: 1) How is the self-efficacy of entrepreneurs in online business for FEBI students, 2) What is the strategy for developing entrepreneurship in online business for FEBI students, 3) What are the obstacles faced in developing entrepreneurs in the online business of FEBI students. This type of research is qualitative with a descriptive approach, and the methods used in data collection are observation, interviews and documentation. The subjects in this study were students who had been running their online business for more than 3 years. The number of subjects in this study were 10 people. The results of this study note that FEBI students have high self-efficacy in online business or entrepreneurship, students are confident in their abilities and have expectations for their abilities in doing business online, in building confidence students obtain from several sources, namely personal experience, other people's experiences, verbal persuasion and emotional state. In the student business development strategy it is still not running well and efficiently, and there are obstacles to student businesses such as suppliers, competitors, capital and customers.

The Effect Of Use Of Lung Mask Fixation On The Accuracy Of Targeted Irradiation In Lung Cancer Intensity Modulated Radiation Therapy (Imrt) Technique In The Department Of Radiation Oncology, Jakarta General Hospital. Lung cancer is the uncontrolled growth of abnormal cells in one or both lungs. While normal cells in the lungs usually develop and reproduce to form healthy lung tissue, these abnormal cells actually reproduce more quickly and are never able to become normal lung tissue. As a result, lumps of cancer cells are formed, which are often referred to as tumors. (4) Radiotherapy is a form of therapy that has been proven to be useful in treating cancer. The aim of radiotherapy is to provide safe, accurate and efficient radiation doses to treat various types of cancer and also non-malignant disorders (7). Carrying out radiotherapy for lung cancer involves the use of immobilization devices, one of which is a thermoplastic mask. This mask functions to reduce the patient's body movements, including movements caused by breathing (9). Verification is a critical stage in the radiotherapy process. The purpose of this verification is to ensure that there are no significant differences in the exposure carried out (14). Giving the right dose of radiotherapy radiation is very necessary to achieve successful therapeutic treatment. The accuracy of dosing and the accuracy of the patient's position influence the dose distribution that will be received by the patient. This verification is based on the International Atomic Energy Agency (IAEA) Human Health Series No. 31 of 2016 with a displacement value of 0.3cm (15). EPID (Electronic Portal Imaging Device) is an additional device connected to the LINAC (Linear Accelerator) radiotherapy device. EPID functions as a verification tool for radiation dose and geometry which is very important in the radiotherapy process (16). The accuracy of the patient's position during radiation treatment greatly influences the accuracy of the IMRT technique. Before irradiation, verification is carried out using an EPID (Electronic Portal Imaging Device) to ensure the correct target position on the tumor. This helps measure the x, y, and z axis coordinates along the radiation area before the radiation procedure begins.

This paper proposes a method based on the Lagrange optimization function and local search technique for minimizing the total cost of two power systems. The first system comprises ten multiple fuel thermal units (MFTUs) while the second system combines the first system with renewable energies, solar and wind power. The proposed method has advantages over its conventional method without a local search technique, called the conventional Lagrange function-based method (CLM), such as having the same parameters and exploiting other search spaces after getting convergence. The proposed method is more effective than CLM for the first system with the last case of load demand. In addition, the proposed method has better costs than previous algorithms, such as the Hierarchical numerical method (HNUM), Hopfield neural network, Adaptive Hopfield neural networks (AHNN) and modified Lagrange neural network (MLANN). Especially, the proposed method can find smaller costs than them, up to $6.78, corresponding to 1.4% for Case 1, and up to $2.43, corresponding to 0.4% for Case 4. Only the proposed method is tested on the second test system. The simulation results indicate that the method is very efficient for the problem with solar and wind energies and multiple fuel thermal units.