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This research is motivated by the importance of evaluating Indonesian language textbooks in elementary schools to ensure they comply with the standards set by the National Education Standards Agency (BNSP).This research aims to describe the feasibility of the Indonesian Language textbook: Children Who Change the World for grade VI of elementary school based on the BNSP instrument, which includes aspects of content, language, presentation, and graphics. The approach used is descriptive qualitative with content analysis techniques on books published by the Book Center in 2022. The results of the study showed that the book obtained an average score of 80%, with the quality of content, language, and presentation being classified as good, although there were shortcomings in the cover and completeness of the book elements. This book is suitable for use with several improvements to increase its effectiveness as a teaching material.  

The Archives and Library Office of West Sumatra Province is a government institution that serves as a center for archive management and public literacy services. This building is visited by various groups, including agency staff, students, university students, and the general public. However, based on preliminary observations, several issues were identified regarding the existing signage system in the building, which was found to be inadequate, lacking in informativeness, and in many cases, unfit for use—making it difficult for visitors to navigate the space. This study aims to design a more effective and communicative signage system using a visual communication design approach. Data collection methods included direct observation and SWOT analysis to identify the strengths, weaknesses, opportunities, and threats of the current signage conditions. The design process employed the Design Thinking method, consisting of five stages: empathize, define, ideate, prototype, and test. The outcome of this process includes five primary media: pictograms, floor plan boards, ground floor information boards, directional signs, and room information signs. Additionally, five supporting media were designed: staff ID cards, lanyards, library membership cards, folder maps, and bookmarks. The developed designs were evaluated through validation and feasibility testing involving two design experts and three visitors as respondents. Based on the assessment results, the design was rated as excellent, with an average score of 4.95 from the experts, and all general respondents gave positive feedback regarding the visual aspects, legibility, and informational function of the designed signage system.

This study aims to analyze the suitability of sentence structure and vocabulary in chapter 6 of the Indonesian language textbook for grade 1 Elementary School issued by the Ministry of Education and Culture in 2023 based on the textbook eligibility standards of the Badan Standar Nasional Pendidikan (BSNP). With a qualitative approach explained by Sugiyono (2022), data was collected through various methods such as observation, interviews, and documentation, then analyzed in depth to find the meaning of the data, not just numbers. The analyze includes the appropriateness of content, the appropriateness of the language, the appropriateness of the presentation and the appropriateness of the display/graphics. The appropriateness of the content is considered appropriate and up to date. The appropriatenessof the language is still not quite right in the use of capital letters, italics, and punctuation, but overall it uses straightforward language. The appropriateness of the presentation can also be said to be interesting and complet. The appropriateness of display/graphics is also appropriate and the use of illustrations is appropriate. Overall, the Indonesian language textbook for grade 1, especially in chapter 6 "Temanku Berbeda" has met the criteria according to the eligibility of textbooks according to BSNP.

This study aims to analyze the product diversification strategy implemented by Pegadaian Purwokerto Branch and its impact on the company's financial stability. A qualitative descriptive approach was applied using a case study method through structured interviews, direct observations, and internal document analysis. The research also integrates the General Electric (GE) Matrix to map the business strength and market attractiveness of each diversified product. The findings reveal that Pegadaian’s diversified products—such as gold savings, vehicle financing, and Hajj/Umrah financing—have significantly contributed to expanding market reach and increasing revenue. This success is supported by comprehensive feasibility studies, structured risk management systems, and the operational role of branch-level human resources. Nevertheless, challenges remain, particularly in service digitalization and HR readiness. This research contributes both theoretically and practically to product development strategies in financial services, especially for state-owned enterprises seeking sustainable business growth through data-driven diversification.

This study aims to explain the process of developing Edpuzzle learning media and identify the feasibility of media development in learning Network Service Technology. The method used is the ADDIE method for class XI TKJ students at SMK Pemuda Samarinda. Data collection techniques using observation and interviews. The analysis techniques used are skinative analysis techniques and quantitative analysis. The research subjects involved were media experts, material experts and students. The results obtained in this study are very feasible with an average score of 82.26.

The problem-based learning (PBL) model is an approach that directs students to learn and work together to solve problems in the real world. Referring to the results of observations that researchers conducted at SMPN 2 nganjuk, still using a conventional learning model. This can be seen from the knowledge and skills of students who have not met the minimum standards set by the school. So that researchers provide solutions in the form of applying PBL-based learning models in the subject matter of long jump hanging style. This study aims to develop and test the feasibility of PBL-based long jump hanging style learning model products. This type of study is Research and Development (R&D) whose stages include conducting needs analysis, identifying learning models, developing learning models, evaluation, small group tests and large group tests. This research data collection uses instruments in the form of observations, interviews, and questionnaires. The results of the percentage calculation by 2 learning experts amounted to 97.08% and the average of the material experts was 95.00%. Furthermore, for the small group trial, 3 PJOK teachers got an average score of 92.16% and the value of 12 VIII grade students averaged 94.44%. As for the large group test on 4 PJOK teachers obtained an average of 93.75% and the value of 34 VIII grade students averaged 96.74%. So it is concluded that the product development of a PBL-based learning model for long jump hanging style material for class VIII SMP Negeri 2 Nganjuk is declared very feasible to use.

This research aims to find out how Microsoft Mathematics can serve as a supporting media in developing students' mathematics learning. The Systematic Literature Review (SLR) method was used in this study by reviewing various relevant scientific articles published between 2020 and 2025. The researcher took 10 main articles to be thoroughly analyzed. The selection of literature was done through several stages, namely identification, screening, feasibility test, and data synthesis, using predetermined inclusion and exclusion standards. The results of the analysis showed that the use of Microsoft Mathematics can improve understanding of mathematical concepts, problem-solving skills, and learning motivation. In addition, due to its interactive features, such as equation solver, scientific calculator, and 2D/3D graphs, this program is considered effective in visualizing abstract mathematical concepts.

Background: The global energy transition requires low-carbon solutions that can be integrated into existing thermal systems without drastic infrastructure changes. Hydrogen blending in conventional combustion systems has emerged as a promising pathway to reduce carbon emissions while maintaining operational flexibility. Objective: This study aims to experimentally evaluate the effect of hydrogen blending ratios (0–100% by volume) on thermal efficiency, CO₂ emissions, and NOx emissions, and to determine the optimal blending range based on technical and economic feasibility. Methods: An experimental thermal system prototype was developed and tested under controlled conditions with three repetitions per operating point. Performance parameters included combustion temperature, fuel consumption rate, and thermal efficiency, while emissions of CO₂ and NOx were measured using a calibrated gas analyzer. Data were analyzed using descriptive statistics, one-way ANOVA at a 0.05 significance level, confidence interval estimation, and linear regression to examine the relationship between hydrogen fraction and emission reduction. Results: The findings indicate that increasing hydrogen fraction significantly improves thermal efficiency, reaching 87.5% at 100% hydrogen, while CO₂ emissions decrease linearly to zero. However, NOx emissions increase with higher hydrogen content due to elevated combustion temperatures. Statistical analysis confirms that hydrogen ratio has a significant effect on efficiency and emissions, with a strong linear correlation between hydrogen fraction and CO₂ reduction. A blending range of 40–60% hydrogen provides the most balanced performance in terms of efficiency improvement, emission reduction, and cost feasibility.

The purpose of this study is to determine whether or not Coffe's Instinct business is feasible to run based on its business feasibility study. Descriptive qualitative research method is the method used in this study. The object of this study is the Instinct Coffee business located on Jl. Bojong No.98, Soreang, Bandung Regency. The result of this research is that the Coffee Instinct business is feasible to run with several points of improvement for business development.

The study aims to develop self-help book media to understand the dangers of smoking. The method used is Research and Development (R&D) with the development of ADDIE Analysis, design, development, implementation and evaluation). The evaluation was carried out by validators of media experts, materials, language experts and expert practitioners. Based on these data, the results of the evaluation of the validity of media experts were 85%, material experts were 80%, the percentage obtained from language experts was 96.4% and the percentage from practitioners was 84.6%. The average feasibility result was 86.5% with the category "feasible" for use. Self-help books can be used independently and packaged systematically. Limited trials were conducted on 19 guidance and counseling students from the 2023 and 2024 intakes. So it can be concluded that the development of self-help books to provide an understanding of the dangers of smoking is a self-help book that is feasible to implement.

This study aims to develop learning media based on wall magazine (mading) and dice for teaching multiplication to second-grade students at SD Negeri 212 Palembang. The research employs the Research and Development (R&D) method using the ADDIE model, which includes Analysis, Design, Development, Implementation, and Evaluation stages. After the media was developed, validation was conducted by content experts and media experts to assess its feasibility, as well as trials by practitioners and students to evaluate the practicality and effectiveness of the media. The validation results showed a feasibility score of 87% from content experts and 94% from media experts. Practitioners gave a practicality score of 92%, indicating that the media is very practical for use in teaching. Student trials were carried out in three stages: one-to-one with a practicality score of 98%, small group with 99%, and a field test involving 26 students showed an effectiveness level of 96%. This wall magazine and dice media is effective and practical to be used as learning media for teaching multiplication to second-grade elementary school students.

Remote islands in Indonesia face significant challenges in achieving sustainable electricity supply. This study analyzes the technical and economic feasibility of implementing a hybrid Solar Power Plant (PLTS) and Wind Power Plant (PLTB) system on Dudepo Island, North Gorontalo Regency. With an average solar radiation of 5.2 kWh/m²/day and wind speed of 4.8 m/s, the hybrid system is designed to supply approximately 97% of local electricity demand with an efficiency of 85%. Simulations using HOMER Pro reveal an optimal configuration of 100 kW PLTS, 60 kW PLTB, and 300 kWh battery storage. Economic analysis indicates a Levelized Cost of Energy (LCOE) of IDR 1,450/kWh, more affordable than conventional diesel generators, with an eight-year payback period. The system’s implementation has enhanced community well-being by providing stable electricity access for education, healthcare, and economic activities. Moreover, it contributes to carbon emission reduction by up to 120 tons of CO₂ annually. Technical challenges and local human resource capacity necessitate sustainable management strategies, including technician training and IoT-based monitoring systems. This study offers recommendations for sustainable renewable energy development on remote islands as a model for environmentally friendly energy transitions.

Indonesia, which is located on the equator, has great potential to utilize solar energy, with an average solar radiation reaching 4.80 kWh/m² per day. This provides an advantage in the development of Solar Power Plants (SPP), one of which is through the installation of rooftop on the roof of the building as a source of electrical energy. This study aims to analyze the feasibility of SPP development by considering the techno-economic aspects of the Pondok Juice cafe. The total real electrical energy consumption required by the Pondok Juice cafe is 32,548 Wh/day. Assuming a system loss of 15%, the total electrical energy requirement that must be supplied by the SPP is 37,430.2 Wh/day. The initial investment projection is IDR 204,265,197, with operational and maintenance costs for 25 years of IDR 105,760,028. The investment feasibility analysis shows NPV of IDR 441,523,820.10, BCR 4.11, DPP ±5 years, and IRR 15.55%, which proves that this SPP planning is feasible to implement.

The issue addressed in this research is the lack of learning media that support the Electric Vehicle Systems course in the D3 Automotive Engine Maintenance Study Program at Cristo Re Polytechnic. The objectives of this research are to design a conventional starter motor learning media that is easy to understand and functions properly; to create the conventional starter motor learning media; and to test the conventional starter motor learning media. This research was conducted at Cristo Re Polytechnic, in the D3 Automotive Engine Maintenance Study Program. The conventional starter motor learning media was developed through several stages: design, construction, and testing. The design process involved determining the frame to be used, the mounting for the starter motor on the frame, and identifying the panel to be used in the learning media. The construction process included cutting the parts to be used for the frame and the motor mount, assembling or forming the frame, and painting. After the learning media was completed, it underwent testing, which consisted of functional tests such as component testing, system testing, voltage drop testing, and feasibility testing through a questionnaire. The conclusions from the testing results are as follows: the starter motor can operate properly. This is based on the construction of the learning media being in accordance with the design, including the frame dimensions and the printed layout matching the design. In addition, the component testing—which included the ignition switch, relay, and solenoid—showed results that matched the specifications of each component. The system function test showed that the system can operate with or without a relay. The voltage drop test yielded results of 0.2 V for the positive battery voltage drop, 0.1 V for the negative battery voltage drop, and 1 V for the voltage drop in the circuit, all of which are within the specified range. The feasibility test involved distributing a questionnaire to lecturers and several students to evaluate the result of the media development, and from this test, an average score of 3.87 was obtained, categorized as very good.

Education is one of the key aspects in developing high-quality human resources. Along with the advancement of time, teachers are expected to create effective learning media in the teaching and learning process. Learning media should also be adapted to students’ learning styles, such as visual, auditory, and kinesthetic.The purpose of this study is to develop and test the feasibility, practicality, and effectiveness of an IPS (Social Studies) magazine as a learning medium for Grade VIII students at SMPN 3 Kedungwaru Tulungagung. This research is a development study using the ADDIE R&D model. Data were collected through interviews, needs and learner characteristic analysis, feasibility and practicality questionnaires, as well as pretest and posttest results.The findings of this study show that the IPS magazine is highly feasible, with a feasibility percentage of 89.91% from material experts and 91.18% from media experts. The practicality results based on teacher questionnaires reached 94.87%, and student responses reached 88.62%, indicating that the IPS magazine is highly practical. The effectiveness of the media was proven through the Paired Sample Test, which showed a significance value of 0.000 < 0.05, indicating a difference in results before and after using the IPS magazine. Therefore, the IPS magazine is considered effective for use in the learning process.

This study aims to develop a learning medium in the form of a scrapbook as an effort to increase students’ interest in learning Pancasila Education at SMAN 1 Rantau Utara. The main problem addressed is the low level of student interest in theoretical subjects, which are often perceived as less engaging. This research employs a Research and Development (R&D) approach using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The subjects of this study were eleventh-grade students at SMAN 1 Rantau Utara. The feasibility test results from material and media experts indicated that the scrapbook media falls into the "highly feasible" category. The implementation of the media in the classroom showed an increase in students’ learning interest, as evidenced by their activeness, enthusiasm, and participation during lessons. Therefore, the scrapbook media can serve as an effective and innovative alternative to enhance students’ interest in learning Pancasila Education.

Product quality is described as the characteristics of a product that supports its ability to meet customer needs standards or manufacturer feasibility standards. This research was conducted on potato chip products at Osha Snack by analyzing the types of defects in potato chips and their causative factors. In this study, the method used is the seven tools method, namely fishbone diagram, pareto diagram, and flowchart diagram. In one month, 57 units of defective potato chips were obtained. The purpose of this study using the seven tools method is to find out the types of defects in potato chips and the factors that cause defects in the product to minimize the level of defects in the production period in the next period. Based on the data obtained, there are two types of defects in potato chips, including 35 units of product returns and 22 units of burnt chips and inappropriate potato cutting. On the application of quality chips.    

Web-based 4-tier instrument analysis on dynamic electricity material is one of the diagnostic tests that can determine the extent of understanding of the concepts that students have according to the level of confidence of the answers and the reasons they answer. The purpose of this study was to determine the feasibility of the instrument using Rasch Model analysis. Rasch Model analysis is assisted by Winstep software to analyze the scores generated from test instruments with the aim of knowing MNSQ Outfit, ZSTD Outfit, Item Measure, Item fit order, Item reliability, and Alpha Cornbach. This research is a descriptive type with quantitative descriptive research methods. The sample of this study was taken from the population derived from class XII students with a total of 91 people who have learned the concept of dynamic electricity in Jember city with purposive sampling technique. The instrument used was a web-based Four-tier diagnostic test consisting of 30 questions. The Rasch Model analysis results stated that the person reliability values of 0.76 and 0.78 were in the sufficient category, the item reliability values of 0.93 and 0.94 were in the excellent category, and the Cronbach Alpha Alpha (reliability) value of 0.78 was in the good category, indicating that the interaction between respondents and items was in the good category. This shows that the diagnostic test instrument is feasible, valid, and reliable.

Decarbonization technology plays a crucial role in reducing carbon emissions in the energy sector, addressing climate change concerns, and achieving sustainability goals. This paper explores the latest innovations in decarbonization technologies, including carbon capture and storage (CCS), direct air capture (DAC), renewable energy integration, green hydrogen production, and smart grid systems. The study analyzes the feasibility, efficiency, and challenges associated with implementing these technologies at a large scale. Furthermore, the paper discusses policy frameworks, economic implications, and technological advancements that drive the successful deployment of decarbonization strategies. By leveraging machine learning, artificial intelligence, and optimization models, modern energy systems can enhance their efficiency and reduce their carbon footprint. The research also highlights case studies of countries that have successfully implemented decarbonization technologies and provides recommendations for future developments. The findings suggest that a combination of innovative technologies, strong policy support, and strategic investments is necessary to accelerate the transition toward a low-carbon energy system.

This study aims to develop Genially-based teaching materials for the topic of news text writing for Grade VII students at UPTD SMP Negeri 5 Gunungsitoli. The research method used is Research and Development (R&D) with the Borg and Gall model, which consists of ten stages ranging from identifying potentials and problems to mass production. The research subjects were students from class VII-E (6 students: 3 male and 3 female) and class VII-D (31 students: 15 male and 16 female). The validation results of the teaching materials indicated a very high level of feasibility, with scores from three experts: material expert (100%), language expert (100%), and design expert (96.6%). A practicality test conducted on a small group yielded a score of 96.11%, categorized as "Very Practical." The effectiveness test carried out on the larger group showed an effectiveness rate of 83.87%, classified as "Very Effective" in improving students’ ability to write news texts.In conclusion, the Genially-based teaching materials are highly feasible, practical, and effective for teaching news text writing in Grade VII. This study is expected to serve as a reference and provide additional insights for future researchers.