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Consistent and efficient concrete quality in each implementation is one of the main factors in the success of construction projects. Concrete as a structural material requires strict quality control in order to meet the technical standards that have been set. One way to improve the quality of concrete is to add certain additives to the job mix formula (JMF). This research is focused on the application of SG type additives known as chemical-based additives to improve the properties of fresh concrete and hard concrete. SG additives have an important function in increasing workability, speeding up or slowing down the binding time as needed, maintaining quality stability, and strengthening concrete finishes. In this study, a comparison was made between a concrete mixture with SG additives and a concrete mixture without additives. The tests included slump parameters, initial binding time, and compressive strength at 7 and 28 days of age. The test results showed a significant difference, especially in the improvement of the consistency and compressive strength of concrete with the use of additives. The results of the discussion showed a comparison of Trial Mix 1 and Trial Mix 2 that are different in terms of material composition, cost efficiency, and compressive strength of concrete. Trial Mix 2 with the composition of cement, admixture, water, and aggregate (sand and split) showed more optimal results. The compressive strength achieved was 821,396.00 kg/cm² at the age of 28 days. In terms of cost, Trial Mix 2 requires Rp. 351,582.00 per m³, with an efficiency difference of around Rp. 32,953.00 per m³ compared to the previous mix

This study aims to analyze the operational feasibility of providing child-friendly recreational facilities at airport terminals to enhance service quality or Level of Service (LoS). A qualitative approach based on a literature review was used to examine various sources and previous research to evaluate the urgency, impact, as well as design and implementation strategies for child-friendly facilities at airports. Facilities such as play areas, breastfeeding rooms, and child-friendly toilets are expected to improve the experience of passengers, particularly families traveling with children, by providing additional comfort during their time at the airport. The findings indicate that the presence of these facilities significantly contributes to improving user perceptions of the airport’s service quality. The psychological comfort of family passengers is also enhanced, with safe and comfortable spaces for children. This not only creates a more inclusive environment but also provides operational benefits such as better terminal space management and efficiency. Child-centered design plays a crucial role in improving facility quality, where modular design is seen as a practical solution to adapt the facilities to the evolving needs of the terminal. Moreover, collaboration with private sectors is considered a strategic approach to support the provision of these facilities, given the substantial investment required. The study concludes that investing in child-friendly facilities at airports is a strategic decision, as it has the potential to enhance the airport's competitiveness. Well-designed facilities also improve user satisfaction and create a more comfortable travel experience. These findings are expected to serve as a reference for airport managers and provide a foundation for future research that quantitatively measures the impact of these facilities.

The rapid development of automotive technology requires students majoring in automotive vocational schools (SMK), particularly in the field of vehicle charging and starting systems, to understand the charging and starting systems. Charging and starting systems are two crucial components in ensuring vehicle operation. For students, having a strong knowledge of how these systems work, maintain, and diagnose them is key to facing the challenges of the automotive industry. Therefore, improving the quality of automotive education is essential so that students can master the basic concepts and techniques needed to carry out their duties as automotive technicians. This research focuses on developing a trainer that can help vocational school students better understand and master vehicle charging and starting systems. The trainer, developed at SMK NU Sunan Ampel Tumpang, records real-world conditions in vehicles using components such as batteries, alternators, regulator ICs, starter motors, and other supporting electrical systems. One innovative feature added is testing the effect of variations in pulley ratios on alternator output voltage and current. This feature provides students with the opportunity to conduct hands-on experiments, analyzing how variations in pulley ratios can affect the performance of a vehicle's charging system. It is hoped that with this trainer, students will not only gain theoretical knowledge but also practical experience that will enable them to perform diagnoses, understand the working principles of charging and starting systems, and analyze system efficiency based on rotational speed measurements. Thus, students' competency in the automotive field can be improved, and they will be better prepared to face the increasingly complex world of work. The successful development of this trainer can also serve as a valuable reference for educators and the automotive industry in designing applicable and contextual learning strategies.

The use of fossil-fueled vehicles has long been a major cause of exhaust emissions that pollute the air and exacerbate global climate change. In an effort to address this problem, Indonesia has begun developing electric vehicles as a more environmentally friendly alternative solution. Electric vehicles (EVs) are considered capable of reducing dependence on fossil fuels while simultaneously reducing air pollution levels. The Indonesian government has demonstrated its commitment to supporting electric vehicle development by issuing several strategic policies, including Presidential Regulation (Perpres) Number 55 of 2019 concerning the Acceleration of the Battery-Based Electric Motor Vehicle Program for Road Transportation, and Presidential Instruction (Inpres) Number 7 of 2022 concerning the Use of Battery-Based Electric Motor Vehicles as official vehicles for central and regional government agencies. In line with these policies, research was conducted to assess the power consumption efficiency of the Ken Dedes electric vehicle prototype, designed using a 250-watt DC motor and a mid-drive system. The main focus of this research was to analyze the effect of variations in module input voltage and gear size on the vehicle's power consumption level. The method used was an experimental approach with a quantitative approach, where a series of tests were conducted on several gear combinations and input voltage levels. The results of the study indicate that variations in these two parameters—gear size and input voltage—significantly affect motor power consumption. The most optimal combination in this study achieved a power consumption efficiency of 6 Wh/km. This figure demonstrates the most energy-efficient performance in vehicle operation and can serve as a benchmark for further development of similar electric vehicles. This research provides an important contribution to efforts to encourage the use of more efficient and sustainable electric vehicles in Indonesia.

This study aims to analyze the effect of variations in bi-LED projector power and the use of a voltage stabilizer on the luminous flux on a motorcycle. The luminous flux produced by a motorcycle lighting system plays a very important role in improving rider visibility and safety, especially at night. Therefore, this study uses a quantitative experimental method with a two-way factorial approach (Two-Way ANOVA) to test the effect of two main variables, namely the bi-LED projector power and the voltage stabilizer configuration. The power variables tested include three power levels, namely 35 W, 70 W, and 105 W, while the voltage stabilizer configuration includes three conditions, namely without a stabilizer, 14 V, and 14.5 V. Luminous flux measurements were carried out using a lux meter at a distance of five meters from the reflective surface, and the results were then combined into lumen units to facilitate comparison between power variations and stabilizers. The results showed that increasing the bi-LED projector power significantly increased the luminous flux produced. The 105 W power output produced the highest luminous flux, reaching 42,319 lumens when combined with a 14.5 V voltage stabilizer. This demonstrates that the combination of high power and proper voltage stabilizer use can improve the quality of motorcycle lighting. The very low P-value (0.000) and R² of 100% indicate that the predictive model used in this study is robust and reliable. Overall, this study emphasizes the importance of using a voltage stabilizer in motorcycle lighting systems. A voltage stabilizer is not only a complementary device but also a crucial component for improving visibility and driving safety, especially at night. Therefore, proper use of a stabilizer can improve lighting performance and provide significant safety benefits.

This research examines the phenomenon of Gado-Gado Boplo as a legendary eating place recognized by Kompas, Flokq, and Nibble articles. The research uses quantitative methods using questionnaires via Google Form and secondary data from the internet, journals and interviews. The sample used was 100 people who had eaten at Gado-Gado Boplo using a Likert scale. All questions were declared valid, with a calculated R value > R table, after which the data was evaluated using Cronbach's alpha for reliability and Pearson Correlation for validity. Apart from that, the Cronbach alpha data value > 0.6 shows its reliability. The data was then subjected to multiple regression analysis, classical assumption testing, and hypothesis testing (T and F tests). The Excellence variable (X3) has a partially significant influence on the Purchasing Decision variable (Y), but the Strength (X1) and Uniqueness variables (X2) do not have a partial influence on the Purchasing Decision variable (Y), according to the T test. Furthermore, jji F shows that variables X1, X2, and X3 all influence Y significantly at the same time. In conclusion, superiority has a favorable and large influence on purchasing choices, but strength and uniqueness only have a small influence. These three X factors all have a significant influence on purchasing choices (Y) at the same time.

This study aims to analyze the effect of the combination of oil viscosity and shock load on the compression characteristics of telescopic shock absorbers on motorcycles, which include depth, time, and compression speed parameters. The experiment was carried out using two levels of oil viscosity, namely 10 cSt and 15 cSt (equivalent to SAE 10W and SAE 15W), as well as two shock load variations, namely 40 kg and 50 kg, which were dropped vertically from a height of 30 cm. Compression depth measurements were carried out using a slow-motion camera at a speed of 240 fps and the results were validated using Kinovea software. Meanwhile, the compression time measurement is carried out with a stopwatch, and the compression speed is calculated from the results of the comparison between the compression depth and the compression time. The experimental data were analyzed using Minitab software with the Two-Way ANOVA method to determine the influence of each variable on response. The results of the analysis showed that oil viscosity and shock load had a significant influence on the compression depth, while the viscosity of the oil also significantly affected the compression speed. However, neither the viscosity of the oil nor the shock load exerted a significant influence on the compression time. To support the results of the experiment, a mass-spring-damper system theory model approach was used, which represents the dynamic behavior of shock absorbers. This model helps to explain the compression response to changes in fluid and load parameters theoretically. Based on the analysis of experimental results and model simulations, the optimal combination that provides the best performance is found in the use of oil viscosity of 10 cSt (SAE 10W) with a shock load of 50 kg.

The study aims to explore the experience of corporate guests in evaluating room and meeting room services at the Whiz Prime Hotel Padang. The approach used in this research is qualitative research with an exploratory approach. Interviews, and documentation used for the data collection process. There are five informants from corporate guests who have already used the rooms and meeting rooms at the Whiz Prime Hotel Padang. By listening and transmitting and using Nvivo, QSR International software for qualitative data analysis. The results of this study show that the custumer experience dimension has a strong correlation with the corporate guest experience at the Whiz Prime Hotel Padang. As seen from the guest experience during your stay, the custumer experience dimension plays an important role for guests, staff and hotel Whiz Prime Hotel Padang. Companies can look at complaints as well as improve existing facilities to gain the experience of guests staying so that they can have a positive impact on the future of the hotel

Disc discs are the main component in a motorcycle braking system that functions to convert kinetic energy into heat energy through friction. The geometric design of the disc, including the diameter and number of holes, affects the effectiveness of braking as well as the heat dissipation ability. This study aims to analyze the effect of variations in diameter and number of holes on disc discs on braking distance and disc temperature. The research method used was an experimental method with three variations in disc diameter (190 mm, 220 mm, and 260 mm) and three variations in the number of holes (30, 36, and 42 holes). The test was carried out through a controlled braking procedure at an initial speed of 40 km/h on flat road surfaces with stable weather conditions. Braking distance data is measured using ultrasonic sensors, while disc temperature is recorded with a high-accuracy infrared thermometer. The results showed that the diameter of the disc disc had the most significant influence on the braking distance. The larger the diameter, the greater the braking moment resulting so that the stopping distance becomes shorter. The number of holes in the disc also plays a role in heat dissipation because the holes enlarge the heat dissipation area. However, the increase in the number of holes tends to slightly increase the braking distance due to a reduction in the area of frictional contact field. The most optimal configuration is found on a 260 mm diameter disc with 42 holes, which results in the shortest braking distance of 8.25 meters and the lowest temperature rise of 4.47°C.  Statistical analysis using Two-Way ANOVA confirmed that the diameter and number of holes had a significant effect individually, but there was no significant interaction between the two. These findings confirm that the selection of the right disc dimensions is critical to improving braking performance, thermal efficiency, and rider safety.

This study discusses the effect of valve weight and clearance on the efficiency of a hydraulic ram pump, with a focus on optimizing water discharge efficiency in the Sumberingin Tourism Area, Wringinsongo Village, Tumpang, Malang Regency. The method used in this study is an experiment with variations in valve weight consisting of 10 kg, 11 kg, and 12 kg, as well as valve clearances varying between 16.5 mm, 24.5 mm, and 32.5 mm. The results showed that the combination of a valve weight of 10 kg and a clearance of 16.5 mm produced the highest water discharge efficiency, namely 69.7 liters per minute, with an optimal efficiency of around 33%. In the optimization process, the application of Design of Experiment (DOE) revealed that a valve weight of 11 kg and a clearance of 16.5 mm can produce a maximum discharge efficiency of 63.155 with a desirability value reaching 0.7671. These findings indicate that proper settings on valve weight and clearance can contribute significantly to increasing the efficiency of a hydraulic ram pump. This research provides valuable insights into improving the performance and reliability of hydraulic ram pumps in rural water distribution systems. Understanding the influence of these variables is expected to yield more effective solutions for water resource management, particularly in areas requiring efficient irrigation systems. Furthermore, this research also opens up opportunities for further research on hydraulic ram pump optimization by considering other factors that can influence the efficiency and performance of the overall water distribution system. It is hoped that the results of this research can serve as a reference for the development of more efficient and environmentally friendly hydraulic ram pump technology, as well as supporting the sustainability of water resource management in rural areas.

The writing of this thesis aims to find out the implementation of the Standard Operating Procedure (SOP) for Organizing Meetings in Padang Four Star Hotels. The approach used in this research is descriptive qualitative. Observation, interviews, and documentation are used for the data collection process. There are 4 respondents from banquet employees, and 3 respondents from guests who have used meeting services at Hotel Bintang Empat Padang. By listening and transcribing and using NVivo software to analyze the data. The results of the research obtained that the implementation of the Standard Operating Procedure (SOP) for Organizing Meetings at the Four Star Hotel Padang has not been optimal. seen from the role of event technicians (engineering), officers, supervisors, and banquet managers who have not fully implemented properly according to the Standard Operating Procedure (SOP) that has been set. Companies can consider conducting training and periodic evaluation and supervision to ensure that all banquet employees have adequate knowledge of the Standard Operating Procedure (SOP).

The growth of modern technology has brought about numerous changes and new developments. Things that were previously considered unimaginable are now seen as commonplace and intriguing to many people. One example is the internet. Digitization can now be applied to all types of businesses, from the smallest to the largest. The formulation of marketing strategies has become more effective with this digitization. This study aims to examine the digital marketing activities of PT AkzoNobel Car Refinishes Indonesia on the Instagram social media platform. The research is conducted to review the uploaded content, engagement with followers, and their impact on the brand and sales. Data were obtained from direct experience during the internship process at the company. Research has shown that with proper and effective use, Instagram has provided considerable excitement for the company and its managers to utilize.

This research is motivated by the phenomenon found by researchers on consumer satisfaction related to physical evidence, store atmosphere and price of Muaro Terrace Cafe & Resto. This research is quantitative in nature and uses a causal associative approach through the survey method. The population of this study were consumers at Muaro Terrace Cafe & Resto with purposive sampling method obtained a sample of 150 respondents. The results of this study are the average respondent on the physical evidence variable 82.0% with good criteria, the store atmosphere variable 81.5% with good criteria, the price variable 80.5% with a good category then concluded that the average respondent of the consumer satisfaction variable was 82.3% in a good category. When F count is 161.216 with a sig of 0.000 <0.05 obtained from the multiple linear regression test results, the regression can be applied. Shows physical evidence, store atmosphere and price have an important impact on customer satisfaction. The Adjust R Square value is 0.763, which indicates that although additional factors not covered in this study affect 23.7% of customer satisfaction at Muaro Terrace Cafe & Resto, the remaining 76.3% is determined by the variables of physical evidence, store atmosphere and price.

  Abstract. The writing of this thesis aims to find out the implementation of the Standard Operating Procedure (SOP) for Organizing Meetings in Padang Four Star Hotels. The approach used in this research is descriptive qualitative. Observation, interviews, and documentation are used for the data collection process. There are 4 respondents from banquet employees, and 3 respondents from guests who have used meeting services at Hotel Bintang Empat Padang. By listening and transcribing and using NVivo software to analyze the data. The results of the research obtained that the implementation of the Standard Operating Procedure (SOP) for Organizing Meetings at the Four Star Hotel Padang has not been optimal. seen from the role of event technicians (engineering), officers, supervisors, and banquet managers who have not fully implemented properly according to the Standard Operating Procedure (SOP) that has been set. Companies can consider conducting training and periodic evaluation and supervision to ensure that all banquet employees have adequate knowledge of the Standard Operating Procedure (SOP).   Keywords: , , 

This research aims to determine the strategy for developing the Aek Parsariran bathing tourist attraction and the supporting and inhibiting factors for developing the Aek Parsariran bathing tourist attraction. This research uses qualitative research methods with a descriptive approach and data collection techniques through observation, documentation and interviews with eleven informants. The results of this research describe that the government has a strategy in developing the Aek Parsariran Baths tourist attraction through four main programs, namely: Completing Attractions, Improving Facilities, Creating Prohibition Holes, Providing Services.

The Salib Kasih tourist attraction is one of the leading potential tourist attractions in North Tapanuli district which offers spiritual tourism as well as natural and cultural panoramas. The purpose of this research is to determine the Development Strategy for the Salib Kasih tourist attraction. Salib Kasih is a tourist attraction created to commemorate the services of Christian missionary from Germany Ingwer Ludwig Nommensen who began his mission in Batak Land and is where Ingwer Ludwig Nommensen looked towards Rura Silindung below. This research uses qualitative research methods, with data collection techniques through interviews, observation and documentation of several informants, namely the Tourism and Tourism Office and tourism business actors. Through the results of research conducted by the author, the development strategy for the Salib Kasih tourist attraction carried out by the Tourism Office is to improve facilities, add facilities, collaborate with other agencies and carry out promotions to increase the attractiveness of the Salib Kasih tourist attraction.  

The state of the community surrounding Dusun Bambu following the emergence of Dusun Bambu tourism in the Cijanggel Village region served as the driving force behind this study. These results have established Dusun Bambu's role and influence over the residents of Cijanggel Village. The arrival of Dusun Bambu tourism resulted in a shift in the living standards of the residents of Cijanggel Village.Among other things, the study's goals are to: 1) determine how much Dusun Bambu tourism has benefited the locals of Cijanggel Village; 2) determine the locals' standard of living following the establishment of Dusun Bambu tourism; and 3) determine the impact of Dusun Bambu tourists on the locals' social lives

This study aims to analyze the role of Penta-Helix stakeholders in developing tourism potential in Kupang City. The method used is descriptive qualitative with a qualitative approach. The focus of this research is to observe and find out how the application of the Penta-Helix model in the development of tourism potential in Kupang City, using data collection techniques in the form of Interviews, Questionnaires and Documentation analyzed using Analytichal Hierarchy Process (AHP) analysis techniques. The results of this study show that the Penta-Helix Collaboration in developing the tourism potential of Kupang City has been implemented, but the results to advance tourism in Kupang City are still not optimal. This is due to the lack of awareness from the public and also coordination from the government in maintaining the safety and cleanliness of tourism places is lacking. Factors that become the scale of importance to the application of the Penta-Helix model of tourism in Kupang City based on the level of priority are aspects of government, private sector, society, media, and academia. For the government aspect, the indicator with the greatest weight is the construction of tourism facilities. For the private sector, the priority indicator is the improvement of service services. In the community aspect, the most priority indicator is the indicator of cleanliness of the tourist environment. For the media aspect, the priority indicator is tourism propotion. For the academic aspect, the indicator with the greatest weight is the development of research contribution facilities.

This study aims to analyze the contribution, effectiveness and efficiency of the tourism sector to local revenue in Alor Regency. This research is a quantitative descriptive study with time series data for 5 years, namely in the 2018-2022 period. The data used are tourism sector revenue realization data, local revenue realization data, tourism sector revenue target data and tourism sector spending data sourced from the Alor Regency Regional Revenue Agency and the Alor Regency Tourism Office. To calculate the contribution, the level of effectiveness and the level of efficiency of the tourism sector to the local revenue of Alor Regency the analysis technique used is to calculate the Contribution Ratio, Effectiveness Ratio and Efficiency Ratio. The results of this study indicate that the contribution made by the tourism sector to local revenue in Alor Regency for the period 2018-2022 is very less which results in this contribution being ineffective and inefficient.

Based on the results of interviews with HRD BW Luxury Hotel Jambi, it is stated that there are still employees who are often late for work every month. As many as 27% of employees have less than 1 year of service, indicating a high employee turnover rate. In addition, there is no compensation system provided to employees. The employee turnover rate also reached 13%, this became the focus of my research on the influence of work environment and compensation on employee loyalty at BW Luxury Hotel Jambi. Information collection was carried out through distributing questionnaires that had proven their validity and reliability to 90 respondents selected using the total sampling technique. This research is a quantitative descriptive study that uses the clausal associative method. Data analysis was carried out using multiple linear regression tests with the help of SPSS software. The results showed that: work environment variables were in the sufficient category with a percentage of 34.4%, compensation variables were categorised as sufficient with a percentage of 36.6%, and work environment variables were categorised as good with a percentage of 42.2%. The R Square value obtained is 0.325 with a sig level. 0.00 <0.05, then the effect of work environment variables and compensation variables on loyalty is 32.5% and the rest is influenced by other factors.