bluuebunny/crossref_metadata_2025_split huggingface dataset:
The influence of shooting conditions during shot peening of stainless steel on surface roughness
Authors: Mukhsen M. Iqbal , Nur Rusdi , AF Yusuf M. Alif , Rakka Christo 
Published: August 2020

Abstract
Stainless steel AISI 316L is a suitable material used for orthopedic purposes. In order to improve the hardness of stainless steel, the heat-treatment process cannot be done, but with a shot peening process. This study aims to determine the roughness of the workpiece surface and investigate the effect of shooting conditions (i.e., angle and time) on the surface roughness during shot peening of Stainless steel AISI 316L. The shooting parameters used are 2, 4, and 6 minute for the duration, and angle of 0°, 15°, 30° and 45°. The ball material is a type of steel with 0.6mm in diameter. The experimental results presented that the increased shooting time will result in lower surface roughness, and vice versa. Therefore, it can be concluded that the use of varying shooting conditions will greatly affect the quality of the surface produced but needs to be compared with other responses, namely hardness.
Computational studies of pressure distribution of flow through inline dimpled plate
Authors: Sukardin M Setiawan , Salam Nasaruddin , Tarakka Rustan , Haddade Jalaluddin , Ihsan Muhammad 
Published: August 2020

Abstract
Dimple plates are widely used for construction and vehicles, especially in car bodies, trains, and aircraft wings. The dimples surface helps to overcome turbulent airflow around vehicles, thereby delaying the separation point and producing fewer vertices and drag. This study aims to predict the pressure distribution occurring over the plate surface with the formation of inline dimple rows on the upper back end. The test is carried out with Computational Fluid Dynamic (CFD) FLUENT program. The test model has a dimension of 300 mm in length, 100 mm in width, and dimples ratio (DR) of 0.5. Dimples are arranged inline as much as 1 to 6 rows. Upstream velocities through dimple plates range from 10 m/s to 20 m/s. The results of the study show that the minimum pressure coefficient occurs at the top front of the plate due to the flow separation that occurs at the front end of the plate. At x/L=0.25 x/L=0.5 and x/L=0.75 (before the dimples formation), a flow pattern returns to normal, this can be seen from the distribution of the relative pressure coefficient that does not change. At the measurement point x/L=0.95 (after dimples formation), there is a decrease in the pressure coefficient. This decrease occurs due to changes in flow characteristics. The pressure coefficient does not change significantly in dimple variations of 2 to 4 rows. Meanwhile, the pressure coefficient decreases with the variation of the 5 and 6-row dimples.
Production capacity planning using RCCP method with CPOF approach: a case study in an automotive Industry
Authors: Aisyah Siti , Hardi Purba Humiras , Dewarani R F 
Published: August 2020

Abstract
The consumer motorcycle soaring demand cause automotive manufacturing has an obstacle in fulfilling them. The motorcycle manufacturing realizes that the soaring demand has a constraint in terms of production load or meet. The aim of this study was to conduct an RCCP analysis with the CPOF approach in the XYZ Company assembling line. The problem that occurred in the assembling line consists of 3 working groups, namely sub assy, mainline RH, and mainline LH. The solution to the problem in the assembling line is done by the Rough Cut Capacity Planning-RCCP method of Capacity Planning Using Overall Factor Approach-CPOF. Based on the result using the CPOF approach, the production load of each workgroup was calculated as follows: sub assy of 115,690 minutes, mainline RH of 186,000 minutes and mainline LH of 218,701 minutes. This result showed an overload capacity in the assembly line and led to a production loss of 868 units in January, 836 units in February, and 867 units in March. It is possible to solve this underload problem through overtime and work weekends.
Production capacity planning in motorcycle assembly line using CRP method at P T XYZ
Authors: Purba Humiras Hardi , Aisyah Siti , Dewarani R F 
Published: August 2020

Abstract
PT XYZ is an automotive manufacturing company that produces a motorcycle. In an effort to meet the needs of consumers precisely and quickly, PT XYZ deals with problems in terms of fulfilling the capacity in accordance with consumer demand. The problem of imbalanced production capacity occurred in assembly line 3 that produced motorcycle of FU types, consisting of 3 workgroups, namely sub assy, mainline RH, and mainline LH. The imbalance between the capacity and load was due to many work elements of an operator. Thus the load on each work in the three workgroups was greater than the available capacity. This problem was solved using the method of Capacity Requirement Planning/CRP. Based on the result using CRP, the production load of each workgroup was calculated as follows: sub assy of 115,690 minutes, mainline RH of 186,000 minutes and mainline LH of 218,701 minutes. This result showed an overload capacity in the assembly line and led to a production loss of 868 units in January, 836 units in February, and 867 units in March. It is possible to solve this under loading problem through overtime and work weekends.
The implementation of preventive maintenance using machine damage analysis: a case study of power plant machine
Authors: Islam Sri S , Lestari Tika , Fitriani Anisa , Wardani Dilla Ayu 
Published: August 2020

Abstract
Maintenance has an important role in supporting the manufacturing process. The irregular maintenance in the industry can cause downtime and discontinue the production process. The importance of maintenance can be seen in PT PLN Sektor Tello, one of the industries which supply the electricity in Makassar. Since the electricity contributes to the huge impact on the life’s sector, there should be preventive maintenance to all of the machine components in order to ensure that the components can run well and reduce the impact. To analyze the PT PLN Sektor Tello machine’s performance, the researchers use the Failure Mode and Effect Analysis (FMEA) to identify the type of failures and recommend the maintenance plan. The FMEA’s result will be used to calculate the RPN (Risk Priority Number) for each failure and provide the recommendations that will be conducted at maintenance when the RPN’s value is equal or more than 125. By using the FMEA, we found three types of machine failures, such as the component’s leakage, the machine’s knock, and the broken component.
Decision support system for selection of tourism in Tana Toraja using technique for order preference method by similarity to ideal solution (topsis)
Authors: Topadang Anton , Triyono Agus 
Published: August 2020

Abstract
Tana Toraja is one of the favorite tourist destinations in South Sulawesi. In Tana Toraja, there are many tourist sites that offer various advantages each. This can make tourists confused in determining the right tourist location to visit. Therefore we need a system that can provide the right information in determining the exact location of a tourist destination. This study aims to make it easy for prospective visitors to choose tourism objects in Tana Toraja that they wish. The method used in this study is the TOPSIS and fuzzy methods that can provide an alternative ranking of tourist attractions. The result of this Decision Support System is to produce recommendations for tourist attractions that can be visited by tourists.
Application of line balancing using the heuristic method to equalize the production line at PT.Bogatama Marinusa Makassar
Authors: Sawal Ahmad , Hamzah Ainun Jariah 
Published: August 2020

Abstract
PT. Bogatama Marinusa is one of the fishery industry sectors located in South Sulawesi that moves in shrimp processing and frosting as pioneer of fishery industry in southern Sulawesi. PT. Bogatama Marinusa certainly wants the planned production target to be achieved as expected, where every day the company processes raw materials with the capacity of approximately 575 kg for vannamei shrimp and 425 kg for black tiger shrimp. At deheading work station (shrimp head separation) and sortation area (sorting) materials buildup occurs in the production flow (bottle neck) which results an idle time to other work stations. With the existence of these problems, it is necessary to do production line balancing in order to minimize idle time and be able to balance the production lines so that the works carried out effectively and efficiently. The method used for overcoming the production line imbalance is by applying line balancing, namely the heuristic method, which is calculation using Regional Approach (RA) and Ranked Positional Weight (RPW) methods. Line efficiency (LE) increased by 83.33%, smoothing index (SI) decreased by 160.90, balance delay (BD) decreased by 16.66%, and idle time (IT) decreased by 264 minutes, and production capacity could be increase to 1,022 kg means that the results are far better than the current conditions.
Flood handling with priority scale determination in Samarinda Seberang from East Kalimantan Province Indonesia
Authors: Banjarsanti SSN. , Kukuh P. , Margaritifera Theta 
Published: August 2020

Abstract
Handling of flooding caused by changes in land use often causes changes and problems in the magnitude of runoff coefficient, discharge, water level, and drainage channel dimensions, as happened in Samarinda Seberang. The purpose of this study was to plan a drainage channel according to the priority scale using the Rational Modification Method as a Hydrological Analysis and Manning as a Hydraulics Analysis. Handling method is carried out in the form of structuring and planning the drainage system according to priority scale based on inundation parameters, economic studies, social and transportation disturbances, loss of housing areas, and property rights. The higher the criteria for handling the area is a priority. The results showed that the highest priority scale (610) was obtained on Cipto Mangunkusumo street, and the lowest priority scale (220) was at Bung Tomo street and Hasanuddin street. Cipto Mangunkusumo street as the highest priority scale will be planned for the first priority drainage channel with a design flood discharge in the 10 year return period (Q) 7.79 m3 / sec, the drainage channel dimension consists of the basic width of the channel (b) 0.77 m ∼ 0.80 m, channel peak width (T) 3.30 m, channel depth (h) 1.925 m, watch height (f) 0.6 m, total depth 2.52 m, and slope of channel wall (m) 1: 1).
Analysis of the impact of convection industrial waste
Authors: Nilda  , Mulyadi  , Nurwahidah Andi 
Published: August 2020

Abstract
Waste from the production of an industry is one of the problems that often arise. The statement about whether the waste will be thrown away or will be produced again to obtain products with added value to increase the economic value of residual waste production and reduce environmental impacts. This study will identify the impacts and causes of residual production waste in the convection industry and develop products from residual production waste so that we can reduce the environmental impact in the form of waste and also increase the economic value of products and of course become income for the industry. Initial identification is done by identifying waste from the production process in the convection industry. The list of wastes will be analyzed for their impacts and causes using the cause consequence analysis method. The initial method used was the fault tree analysis method to identify the cause of the waste that occurred and it was found that the average waste that occurred was caused by human error and the standard of clothing that was not good so it could not be continued to be produced. The next method is an event tree analysis that is used to identify the consequences if the waste is not handled properly. Solid waste from production if not managed properly will accumulate and can cause negative effects such as flooding. Processing waste into finished products must be supported for the sustainability of this earth, by providing financial assistance to small industries or households to develop products.
Effect of types of control materials in a modified sedimentation equipment batch laboratory scale
Authors: Mustafa  , Masing  , Irwan M 
Published: August 2020

Abstract
The purpose of this research is to be able to recognize laboratory scale sedimentation devices in the process of deposition through batch system experiments in a cylindrical tub, to explain how the relationship between time, height of deposition and concentration of various solids with sedimentation rates, can compare the precipitating materials used in the sedimentation process both manually and automatically, and can determine the performance of tools and sedimentation rates by using a variety of sedimentation and flocculant materials used in the sedimentation process both without the addition of flocculants or with the addition of flocculants. In supporting this research, the method used is experimentation and analysis. The sample is a mixture of media that is water - depositional material (solids) where the depositional material has previously been sieved and cleaned of impurities and the variables analyzed were deposition time, deposition height, suspension concentration and concentration of flocculant addition. the settling material used varies, among others: 50 grams, 100 grams, 150 grams, 200 grams, and 250 grams, then put into a settling tube. While the results can be obtained from visualization data that is based on more accurate observations and data processing conditions (measurements) obtained in the form of the influence of time on settling rate, the influence of sedimentation column height on settling rate and the effect of solid concentration on settling rate. From the results obtained from various settling materials, the settling speed for CaCO3 precipitates without flocculants and with flocculants is 4.43 cm / minute and 3.86 cm / minute. For the settling speed for tapioca flour depositor without flocculant and with flocculant is 23.64 cm / minute and 23.47 cm / minute. And for settling speed for dry soil sedimentation material without flocculant and with flocculant is 18.60 cm / minute and 15.10 cm / minute and for settling speed of active carbon precipitation material without flocculant and with flocculant is 7.76 cm / minute and 7 .05 cm / minute.
Comparison of freeze drying and foam mat drying effects on characteristics of inulin from gembili (dioscorea esculenta)
Authors: Indah N , Zainal  , Ganesa D 
Published: August 2020

Abstract
Gembili (Dioscorea esculenta) is of Dioscorea spp. which contains high inulin. Several factors can affect the physico-chemical characteristics of inulin, one of which is drying method. The purpose of this study was to compare the freeze drying and foam mat drying methods in producing of inulin from gembili (Dioscorea esculenta) based on physicochemical characteristics. Based on the analysis of inulin content of day the best gembili obtained, the samples dried using foam mat drying contained about 9,38% inulin while those dried using freeze contained about 8,66%inulin. The colors of dried samples were relatinglight as indicated by high L values 95.9% for freeze drying and 91,3% for foam mat drying.
Preliminary Analysis of Electricity Energy Efficiency in SMEs
Authors: Akil Y S , Miyauchi H , Mangngenre S , Amar K 
Published: August 2020

Abstract
In general, industrial sector consumes high energy. Therefore, efforts to manage the energy usage in this sector are useful as it can reduce significantly total energy consumption mainly for electricity. This research aims to observe consumers’ perceptions and success factors to improve efficiency of electricity energy usage for industry particularly for manufacturing small-medium enterprises (SMEs) in Makassar as a representative big city in Indonesia. A questionnaire for survey is designed to get data from 127 respondents and analysed using statistical approach. Observed variables related to energy efficiency in SMEs include human resources, production technology, rainfall, and tax. Results shown the developed questionnaire is reliable (Cronbach’s alpha value exceeds 0.6). Perception of consumers about energy saving is quite good. From aspect of demographic characteristic, there is a difference in users’ perceptions on energy saving. Other results show the significant relationship between human resources, production technology, and rainfall condition to the energy efficiency level at SMEs. Knowledge or findings of this study provide valuable information in relation to strategy to improve efficiency of electricity usage in industries.
Analysis of FMEA and FTA methods in identifying the causes of decreased quality of refined sugar products (case study: PT. Makassar Tene)
Authors: Khaerani B N , Arminas  , Hendrawan R 
Published: August 2020

Abstract
PT. Makassar Tene is one of the manufacturing industries that produce refined sugar from raw sugar as basic materials. Most of the refined sugar production process has been carried out automatically, but it still requires regular supervision and monitoring from the operator to ensure the smoothness and accuracy of the sugar processing steps in reducing the number of defect products significantly. Failure Mode and Effect Analysis (FMEA) is a method to identify product failures based on potential causes. FMEA is used to determine the value of Risk Priority Number (RPN), then further identified as the main focus in determining the root of the potential cause using the Fault Tree Analysis (FTA). The application of FTA can provide suggestions for improvements and controls in order to help companies reduce the risk of production failure. Based on the results of the research using FMEA method, it can be seen that the process stage with the greatest risk of failure lies in the stages of sugar evaporation/crystallization and the packaging stage in the packaging bin. The next step is to identify the type of problem at each stage of the process selected using Pareto diagram so that the results show that the evaporation/crystallization stage CV deviation often happened which can produce sugar dust, while at the packaging stage the problem that often occurs is metal detection, torn sack, and sweeping sugar. Then proceed with the use of the FTA method to identify the underlying causes of each failure that arises at the chosen process stage, and the results show that most of the failures that arise are caused by operator negligence, the operation process is still done manually, and the design of operating equipment is less optimal.
Model development of risk assessment of risk-taking relationship with integrated approach
Authors: Indah A B R , Mangngenre S , Mudiastuti R D , Syamsul N I , Nilda  
Published: August 2020

Abstract
Each organization or company must always be dealing with risk. The decision-makers strive to be able to avoid the impact of such risks. Those generated risks may affect the achievement of the objectives, therefore risk management is needed. Risk management is a solution to avoid or to minimize the occurrence of the risk. Risk management consists of several steps, one of them is risk assessment. An appropriate risk assessment would support the achievement of the objectives. In this study, a risk assessment model is developed with PLTSa Kota Surabaya as a (research) object, which was selected because there were still constraints that affect the energy produced and waste volume used as fuel in this PLTSa. This study aims to develop risk assessment models integrated with the Delphi method, Fuzzy Cognitive Maps, and Fuzzy Synthetic Evaluation, then implementing these models in real cases and proposing risk mitigation steps by considering the relationship of the risks. The Delphi method was used to identify risks, FCM was used to identify the relationship among risks and the relationship between risks with the objectives of PLTSa, and FSE was used to assess the level of risks to find risks with the critical category. Delphi method identified 15 risks as a result and reached the consensus based on statistical analysis, FCM generated positive value of the relationship among all of the identified risks and negative value of the relationship between identified risks with the objectives of PLTSa. Meanwhile, FSE method obtained six types of critical risk, which were the machine brake all of a sudden (RC = 3,082), the blower did not work (RC = 3,041), congestion in fuel flow (RC = 2,954), clogged filter (RC = 2.915), lack of machine maintenance knowledge by the operator (RC = 2,872), and the energy produced had not maximum. (RC = 2.828). Those six types of risk used a scenario to run the FCM simulation and meet the dynamic behavior of the risk relationship value. The mitigation proposals are to perform maintenance activities programmatically, to improve the management system related to human resources, and to do the fuel examination according to the standard.
Overall Equipment Effectiveness (OEE) analysis and Failure Mode and Effect Analysis (FMEA) on Packer Machines for minimizing the Six Big Losses - A cement industry case
Authors: Muthalib I S. , Rusman M , Griseldis G L 
Published: August 2020

Abstract
Bosowa Maros Cement Company (BMC) is a company engaged in the production of cement. There are seven packer machines for the packaging process to fulfill the demand in BMC. The most problems are many breakdowns that occur on packer machines, and the amount of production, which not maximum, causes a lack of Overall Equipment Effectiveness (OEE) value. The research aimed to identify the performance of packers based on production data using OEE and Failure Mode Effect Analysis values. The results of the six big losses and the Pareto diagram show that the most affect losses in causing the low achievement of OEE values on both machines are reduced speed loss, idling and minor stoppages, equipment failure (breakdown loss) for Packer 3 is 94.27% and Packer 7 is 90.41%. The average OEE value of the Packer 3 machine is 53%, and the Packer 7 machine is 36%. OEE values on the two machines have not reached the OEE ideal standard by the Japan Institute of Plant Maintenance (JIPM), which is 85%.
Analysis of Total Productive Maintenance (TPM) and Failure Mode And Effect Analysis (FMEA) to improve machine effectiveness: A study on Indonesia’s sugar mills
Authors: Lukmandono  , Prabowo R , Sulistyowati E 
Published: August 2020

Abstract
Many companies experienced a halt of operation because their production machines are damaged. As a result, customer demand is not fulfilled; such productivity decreases. This study conducted at PT. PG Candi Baru Sidoarjo. They often experience a suffered engine damage on their rolling and grinding station. The purposes of this study were to improve their machine performance at the grinding station by using the Total Productive Maintenance (TPM) and Failure Mode and Effect Analysis (FMEA), to measure the value of Total Productive Maintenance (TPM), and to determine the type of damage that often occurs using the Age Replacement method in order to improve engine maintenance schedule. As the results, the Overall Equipment Effectiveness (OEE) at the grinding station decreased from 2015 to 2016 in the amount of 74.6% to 69.7%. The most frequent types of damage were the IMC chain abrasion, IMC chain breaking, dropping/off track and slip mill. For the type of squashed IMC damage, treatment was carried out on the 12th day at the cost of IDR 3,806,425.92. The dropped/exited IMC from the operation line was repaired on the 13th day at the expense of IDR 5,614,466.88 For the type of rolling slip damage, treatedment done on the 10th day at the cost of IDR 34,272,482.34.