Publication Search

In the process of designing mine slopes, drilling or tunneling, to determine the level of strength and brittleness factors of rock on a slope, it is necessary to carry out a uniaxial compressive strength test or indirect tensile strength test of the rock. Compressive strength testing is carried out to determine how long the rock maintains its strength or elastic properties when pressure is applied. This data can be used as information to understand the analysis of factors that influence the physical properties of rocks on the compressive strength of rocks from physical properties and compressive strength testing activities. and indirect tensile strength testing is carried out to determine the stress value contained in the rock. To determine the level of rock brittleness, it can be done by comparing the uniaxial compressive strength value and the indirect tensile strength value. This data can be used as information and reference for companies that will design a mine slope, drill and tunnel, how strong the strength and level of brittleness of rocks in areas dominated by sandstone. This research uses quantitative methods, so that to obtain accurate calculation data, testing methods are used in the form of uniaxial compressive strength tests and indirect tensile strength tests, in this case tested on sandstone samples obtained from 2 rock formations including the Pulaubalang formation and the Balikpapan formation, so that accuracy The test result values ​​can be obtained well. And after testing, a comparison is made between the uniaxial compressive strength test value and the indirect tensile strength test to obtain the Brittleness Index value.Based on the observation results, it can be concluded that when the brittleness of the rock becomes greater, the performance of the cutting digger increases several times.    

The purpose of this research is to determine the financial performance of PT. Pajjaiang Indah in terms of the ratio of liquidity and profitability of own capital in 2017-2019. The liquidity ratios used in this study are the current ratio, the quick ratio, and the cash ratio. And the profitability of own capital. The research method used is descriptive qualitative, and uses the type of secondary data which is data that has been processed in the form of financial reports sourced from PT. Pajjaiang Indah which consists of a profit and loss statement and balance sheet from 2017-2019. The results of the analysis of the financial performance of PT. Pajjaiang Indah Makassar, in terms of the liquidity ratio aspect from 2017-2019, using the Current Ratio calculation, the liquidity level shows an average of 1.82 times or 182% of the standard 2 times or 200%, this means the level of liquidity at PT . Pajjaiang Indah in terms of the Current Ratio (Current Ratio) is declared illiquid. Meanwhile, in terms of the Quick Ratio aspect, it shows an average of 1.69 times or 169% from the standard 1.5 times or 150%, this means that the liquidity level of PT. Pajjaiang Indah in terms of the Quick Ratio aspect is declared liquid. And viewed from the aspect of the Cash Ratio (Cash Ratio) shows an average of 0.24 times or 24% of the standard 1 time or 100%, this means the level of liquidity of PT. Pajjaiang Indah in terms of the Cash Ratio aspect is declared illiquid. From the description of the three aspects of the liquidity ratio, it can be concluded that the level of liquidity of PT. Pajjaiang Indah in 2017 – 2019 was low. From the results of the analysis of the profitability ratio of its own capital, PT. Pajjaiang Indah in 2017 - 2019 obtained an average calculation of 24% from the standard 40%, it can be concluded that the average level of profitability of PT. Pajjaiang Indah in 2017 – 2019 was low.

The problem in this study is whether there is an increase in physical fitness of students of SMP Paramaount School, Palembang City. This type of research is quantitative, using Descriptive mode. The population in this study were active students of SMP Paramount School, totaling 15 students in class VIII. The data collection technique used percentage calculations or commonly called relative frequencies. The average result of the 60-meter running test was 7.87 which is included in the good category. The average result of the hanging body lifting test was 9 times which is included in the sufficient category. The average result of the 60-second lying sitting was 30 times which is included in the good category. The average result of the vertical jump test was 63.2 cm which is included in the good category. The average result of the 1,200-meter running test for 3 minutes 45 seconds which is included in the good category. The overall average level of physical fitness in SMP Paramont School Palembang students was 19 which is included in the TKJI Norm range between Values ​​18 to 21 including the good category

An audit needs to be carried out so that an information system is able to meet IT Governance requirements. PT. Jaya Karya is a company operating in the field of goods delivery services that has used information systems to support its business processes for the last 4 years. It is time now to carry out an audit of the goods delivery information system  This is so that we can find out whether the information system implemented is in accordance with the vision, mission and goals of the organization as well as testing the performance of the information system. In this research, an analysis of the goods delivery information system at PT. Jasa Karya Palembang branch uses the COBIT 5.0 framework with sub domain MEA01 (Monitor, Evaluate, and Assess Performance and Conformance) with process capability level calculations and also analysis of Strength, Weakness, Opportunity and Threats (SWOT), Internal Factor Analysis Summary (IFAS) , as well as External Factor Analysis Summary (EFAS)). Data was obtained through observation techniques, interviews, literature study. Respondents for the data consisted of Branch Heads, Operations Managers and Operational Staff.

Measurement of human body weight is an important process in various contexts, such as medical staffing administration, military recruitment, and individual health assessment, as body weight is a key parameter for determining one's body condition. Weight information is traditionally obtained using manual scales, which have been used for many years. However, manual weight measurement is quite time-consuming, especially when done for many people and repeatedly, such as in military recruitment or medical administration. A new approach using digital image technology offers improvements in this process. Therefore, this research aims to calculate human body weight based on digital photos using the Body Surface Area (BSA) method. The use of the BSA method in digital image-based weight measurement involves calculating the body surface area to estimate body mass. This method combines parameters such as height and body circumference taken from the photo image to calculate BSA. Furthermore, an investigation into calculation analysis and accuracy enhancement is conducted. The calculated weight results from the photos are then compared with the scale results to determine their accuracy. Based on the calculation results, an approximate value of 93.3% accuracy is obtained with an average conversion factor of 0.978 at a distance of 300 cm between the camera and the object.

This research applies the Monte Carlo simulation method to predict the movement of Apple Inc.'s stock price over a long period of time. Using historical data of Apple's stock price from 12 December 1980 to 24 March 2022, this study aims to generate a probability distribution of the future stock price. The method involves several steps, including data collection, log return calculation, parameter estimation, and simulation of the stock price path through random iterations based on the log return distribution. The simulation results show that the closing price of Apple stock can be predicted by following the historical trend, although there are differences with the real data due to the stochastic nature of the Monte Carlo technique. This research also applies a variance reduction method to improve simulation efficiency. The findings provide a valuable perspective for investors and financial analysts in identifying investment risks and opportunities through an in-depth understanding of the dynamics of stock price movements using Monte Carlo simulation. Suggestions for future research include the use of VaR methods with historical variance and covariance approaches, as well as considering longer data periods and more stock indices for more comprehensive results.

The use of technology is one solution in helping problems in various circles, both in the world of education and in companies. One of them is the application of an accounting information system to enter, process or report a company's accounting. This application can produce data processing quickly and accurately. This will of course save time and also reduce errors that occur when work is done manually. Like cooperatives, cooperatives must use an accounting information system so that work can be done quickly and accurately. PGRI Kosera's activities in Central Java are in the savings and loans sector. The savings and loan recording process at Kosera PGRI Central Java is not very effective, and because the recording process is repetitive, there is still too much risk of inaccurate and quick misinformation to be reported using Ms. Excel still requires previous data processing from bookkeeping, both deposits, loans and installments, resulting in delays in submitting reports to management. Therefore, in a computerized system that can process membership data, journals, savings transactions, loans and installments, reports made by the Kosera Pgri Cooperative will be valid in programming languages, especially in calculating installment interest costs and financial reports. From the results of the program created, data entry errors and interest calculation errors can be reduced, financial reports can be produced more quickly, and effective and efficient achievements can be achieved.

The use of technology is one solution in helping problems in various circles, both in the world of education and in companies. One of them is the application of an accounting information system to enter, process or report a company's accounting. This application can produce data processing quickly and accurately. This will of course save time and also reduce errors that occur when work is done manually. Like cooperatives, cooperatives must use an accounting information system so that work can be done quickly and accurately. PGRI Kosera's activities in Central Java are in the savings and loans sector. The savings and loan recording process at Kosera PGRI Central Java is not very effective, and because the recording process is repetitive, there is still too much risk of inaccurate and quick misinformation to be reported using Ms. Excel still requires previous data processing from bookkeeping, both deposits, loans and installments, resulting in delays in submitting reports to management. Therefore, in a computerized system that can process membership data, journals, savings transactions, loans and installments, reports made by the Kosera Pgri Cooperative will be valid in programming languages, especially in calculating installment interest costs and financial reports. From the results of the program created, data entry errors and interest calculation errors can be reduced, financial reports can be produced more quickly, and effective and efficient achievements can be achieved.

This research aims to determine the level of financial health of Rural Credit Business Entities (BUKP) in Sleman Regency. As well as to find out what obstacles and barriers exist in Rural Credit Business Entities (BUKP) in Sleman Regency. This research applies descriptive qualitative research methods, where the source of research data comes from the Regional Secretariat of Sleman Regency. Data sources used in this research include primary data and secondary data. Research data includes the results of interviews, observations and document reviews, as well as information from previous researchers which is used as a theoretical reference. The results of this research show efforts to increase the health level of BUKP in 17 sub-districts in Sleman Regency. Through calculations carried out on the aspects of NPL, LDR, RTA, RTE, NIM, BOPO and CAR, results can be found on the level of financial health of Rural Credit Enterprises (BUKP) in 17 sub-districts in Sleman Regency. In particular, for academics who study the criteria for assessing the level of financial health of BUKP, it is hoped that this research can serve as a comparison and at the same time a reference in exploring this problem. The agencies that host research may vary, but the basis and framework of this research can help researchers who wish to conduct similar research to explore various issues related to the criteria for assessing the level of financial health of BUKP.

This study aims to gather sufficient information about the sexagesimal base 60 number system. This research method is a literature study that collects some previous studies to answer about the sexagesimal base 60 number system. The results of this research show that the sexagesimal or sixtieth number system is the same calculation as Babylonian people's astronomical calculations, in their use sexagesimals can be said to be easier to use than decimal numbers, and to this day the sexagesimal number system is still used in a modified form to measure time, angles, geographic coordinates, and is still used in the field of astronomy.

 Indonesia has quite rapid development of the retail business. This requires actors who have retail businesses to be involved in consumer purchasing decisions. There are several factors that influence consumer purchasing decisions, one of which is a good and strategic layout of facilities. Cahaya Abadi is a shop that runs a retail business. Cahaya Abadi Store provides various products for daily consumer needs. This research was conducted using the Activity Relationship Chart (ARC) method and Total Closeness Rating (TCR) calculations in data processing. The research uses the Activity Relationship Chart (ARC) method and Total Closeness Rating (TCR) calculations. This research uses primary and secondary data and the methods used are qualitative and quantitative methods. The layout is based on providing convenience for consumers in shopping and it is hoped that consumers will have an efficient and effective time in shopping.

Working on a project requires careful planning, so that it can be carried out with optimal time and cost. However, in practice, the implementation of project work usually encounters obstacles that cause schedule delays which result in cost overruns. Therefore, to determine the accuracy of the implementation of a project, routine evaluation and analysis is carried out with the aim of knowing how the progress of a project is progressing. In this research, the Earned Value Analysis method is used to examine trends in schedule variance and cost variance in a period (time) during the project. Based on the calculations and analysis carried out, it can be concluded that there were no delays in the implementation of the Kapal X construction project at X company, the work was carried out according to the predetermined schedule, even faster than the previously planned schedule. Based on the results of the analysis of project completion projections in terms of time, the results for the projected remaining work time (ETS) were 268 days and for the projected total project completion time to completion (EAS) it was 594 days or 306 days faster than the initial plan of 900 days.    

Furniture raw materials are still a major challenge in the industry, in line with the wishes of consumers to get good quality raw materials and soaring export demand, so there is a need for a control process to monitor the value of products using forecasting. The purpose of this study was to predict gross domestic product in the furniture industry in Indonesia in 2022. This study used secondary data on the quarterly trend of gross domestic product in the furniture industry in Indonesia 2010-2021 taken from the research industry data processed by BPS and Bank Indonesia, The method used is Double Exponential Smoothing-Holt. The results of the calculation using the double exponential smoothing-holt method obtained a value of α of 0.658 and β of 0.008 where the forecasting results for the 2022 period, namely the 1 quarter of 7.602 billion rupiah, quarter 2 of 7.676 billion rupiah, quarter 3 of 7.749 billion rupiah, and quarter 4 of 7.822 billion rupiah. Where the MAPE value is 0.737% which means forecasting has very good results.

Every year, Setia Janji District routinely holds village competitions. Village competition assessments are held to motivate village officials and the community to compete in building a good village. As for the village assessment, currently the calculations in the assessment are still done manually and are not yet open. Assessments also still use paper so processing takes quite a long time and is sometimes unbalanced. By utilizing technological advances, a decision support system is needed to make it easier to determine the best village in Setia Janji District. The aim of this research is to determine the best village in Setia Janji District using a comparison of the TOPSIS Method and the WASPAS Method.

In Indonesia, almost every year train accidents occur which result in casualties and considerable material losses. The factors that cause train accidents are human resources, facilities, infrastructure and environmental factors. The method used in this study is the measurement of the level of fatigue that occurs in machinists and assistant machinists using the fatigue index calculator and for measuring the quality of sleep whether good or not using the Pitsburgh sleep quality index questionnaire. Data collection is divided into two parts, namely the collection of working time data from machinists and assistant machinists to determine the level of fatigue and the collection of data from the distribution of questionnaires to determine sleep quality. Working time data is the schedule of machinists and assistant machinists every day which will then be calculated the level of fatigue using the fatigue index calculator. For the calculation of sleep quality, the Pitsburgh sleep quality questionnaire was distributed to 62 respondents. From the results of the calculation of the fatigue index calculator for machinists and assistant machinists every day, it is found that the fatigue index value varies for each day. This can also be seen from the results of the calculation of the standard deviation for 62 respondents which ranges between the value of 6 or 7. The results of the calculation of the sleep quality index showed that 84% of machinists and assistant machinists have a good sleep quality.

Groovy Space Coffee and Kitchen is a coffee shop located in the Bogor City area that serves several types of drinks such as coffee and tea and several foods, both snacks and heavy meals. This research aims to optimize the layout of the sitting room at Groovy Space Coffee and Kitchen using the Activity Relationship Chart (ARC) method based on the results of the Total Cleseness Rating (TCR) calculation. The ARC method is used to determine optimal seating space layout arrangements by considering the shape of the room and the available area. Meanwhile, the TCR method is used to overcome potential conflicts in the use of seating space, such as the density of visitors at certain times. The application of these two methods is expected to produce a seating space layout that is efficient, comfortable, and able to better accommodate the number of visitors. The results of this research show that the new layout is more effective and efficient compared to the previous layout with the results showing that the new layout includes additional seating in the outdoor area and also a change in concept from outdoor to semi-outdoor.

In the era of increasingly rapid globalization, the industrial world is faced with inevitable dynamics. One important aspect in industry is optimal layout planning. The right layout determines the effective placement of production facilities, thereby smoothing the production process and increasing productivity. The current layout of production facilities at Bebeke Om Aris Dramaga is not optimal, causing production inefficiencies and increased costs. This research aims to redesign the layout of facilities at Bebeke Om Aris Dramaga. This research examines the design of alternative layouts at Bebeke Om Aris Dramaga with the aim of increasing productivity. The methods used are Activity Relationship Chart (ARC) and Total Closeness Rating (TCR). Production location calculations are carried out periodically to obtain accurate information. The research results show that the proposed layout has shorter distances between facilities. Apart from that, the resulting service time is more optimal. This change in store layout shows that the new layout is more effective and efficient than the old layout. This is proven by research results which show that the new layout design can reduce the time spent by employees in the production process and service to customers and the distance between facilities and increase the efficiency of employee movement.

Roads in Manokwari City still need a lot to be improved, especially on the Pegaf city boundary road - South Manokwari district, because this road connects the border between the City and the district.... This study aims to calculate the productivity of heavy equipment working on road improvement work, Analyzing the balance of road improvement work tools and knowing the total cost and time required in road improvement projects. So that this research is expected to be useful for optimizing the performance of road sections and being able to provide solutions to problems that occur and can provide an overview of the process of using heavy equipment that is effective and efficient. Productivity is the ability to produce something, so it can be said that heavy equipment productivity is the ability of heavy equipment to produce something per unit of time. In general, heavy equipment work production has the same calculation principles. The basic principles of calculating heavy equipment work production are 4 steps, namely calculating actual capacity, cycle time, calculating gross work production (PKK) and calculating actual work production (PKA). So it can be concluded that the productivity of ordinary embankment excavator 173.68m3 / hour, dump truck 10 tons of ordinary embankment 45.58m3 / hour, optional embankment 36.3m3 / hour, asphalt foundation layer (HRS Base) 7.91m3 / hour, Dump truck 4 tons of Class A aggregate layer 4.02m3 / hour, Class B aggregate layer 4.06m3/hour, motor grader 315m2/hour regular embankment, 174.30 m3/hour optional embankment, 561m2/hour pavement preparation, Class A aggregate layer 274.63m3/hour, Class B aggregate layer 274.63m3/hour, vibratory roller regular embankment 159.36 m3/hour, class A aggregate layer 77.02m3/hour, class B aggregate layer 77.02m3/hour asphalt distributor binder layer 4980 liters, air compressor binder work 1365.35 liters, asphalt finisher asphalt foundation layer (HRS Base) 69.85 tons, tandem roller regular embankment 39.84m3/hour, preparation of the road body 272.98m3 / hour, paving 86.59m3 / hour, wheel loader preferred embankment 117.58m3 / hour, class A aggregate layer 114.98m3 / hour, class B aggregate layer 116.53m3 / hour and tire roller paving 104.06 tons and the total cost of all equipment rental is Rp. 254,091,569.

 Bone cancer that has metastasized can be detected through a bone fingerprint examination, which involves the injection of tc-99m with the pharmaceutical Methylene Diphosphate (MDP). Bone prints are often used to trigger possible metastases of cancer to the bone, which is a major health problem for women worldwide. This study aims to activate the described organ uptake and residual radiopharmaceuticals in bone prints using the Region of Interest (ROI) method. The research was conducted on five datasets of patients with breast cancer. The patient received an intravenous injection of tc-99m MDP and, three hours later, underwent a bone fingerprint examination with a gamma camera. The image results from the gamma camera were processed using the ROI technique and analyzed further using statistical methods. The research findings showed that the five patients experienced an average reduction in residual radiopharmaceuticals of 2.965945119 mCi. Several factors, such as examination time, radiopharmaceutical dose, and body metabolism, influence the decay of radioactive activity in the body. The calculation of the absorption percentage for the five patients showed variations between 0.190070697% and 0.3510157519%

Intersections are the most important factor in determining the capacity and travel time on a road section. The development of transportation in the city of Medan has had an impact on increasing the movement of people, goods and services. This also greatly demands increased transportation facilities and infrastructure in the city of Medan. The increase in the number of vehicles that is not balanced with infrastructure will cause conflicts on roads, especially at the intersection of three Jalan-Sisingamangaraja Jalan .Alfalah To anticipate This requires further study or research. In this research, analysis of intersection performance calculations uses the 1997 (MKJI) guidelines. The survey was carried out on Monday 14 August 2023 to 20 August 2023. Then the peak hours were searched for the volume of vehicle flow crossing the three intersections. Then create a new cycle time for the intersection. The results of the analysis in this research, from survey results, by looking for new cycle times to reduce queue lengths and delays (Delay). The new cycle time obtained to reduce queue lengths and delays for the three intersections on the northern approach is 859.927 seconds/intersection. Then at the southern approach with a total delay of 2,056,013 sec/intersection and at the western approach with a delay of 307,555 sec/intersection. For existing conditions the queue length (QL) is 1321 meters for the northern approach, (QL) 1372 meters for the southern approach and (QL) 1321 meters for the west