ICSET: International Conference on Sustainable Engineering and Technology

Grouping of General Hospitals Based on Specialist Doctors in the Special Region of Yogyakarta with the K-Means Clustering and Visualization on the Dashboard Tableau

Erma Shofi Utami, Mercynanda Yuliany Alang, Rokhana Dwi Bekti, Edhy Sutanta — Fri, 19 Aug 2022 00:00:00 +0700

One of the most needed health workers in hospitals is a specialist doctor. The number of general hospitals in Special Region of Yogyakarta (DIY) is 55, with different characteristics of specialist doctors. Purpose: Information on the grouping of general hospitals based on the characteristics of specialist doctors will help provide information about the distribution of health workers. Methods: This study uses K-Means Clustering as a non-hierarchical clustering method that can group large amounts of data with fast and efficient computation time and is easy to adapt. Results: This study used the number of clusters (k) 2, 3, 4, and 5 and then compared them. Based on the largest silhouette index coefficient, the best number of clusters is k = 2. A total of 35 hospitals in cluster 2 represent hospitals with an adequate number of specialists. A total of 2 hospitals in cluster 2 represent hospitals with a sufficient number of specialists. Visualization using the Tableau dashboard has also provided benefits, namely providing information on the number of specialist doctors in each general hospital, cluster results, and cluster profiling. Implications: The K-Means method can provide a reference for the distribution of specialist doctors in the Special Region of Yogyakarta.

Design a Smart Trash Using Fuzzy Logic Algorithm

Muchamad Malik, Adi Prasetyo — Fri, 19 Aug 2022 00:00:00 +0700

Collection carried out by waste officers cannot be carried out effectively. This reduces the performance of garbage officers at the trash bins at different points. Smart trash cans can eliminate the needed trash to maximize their work. This study designed a trash bin monitoring system using ultrasonic sensors and weight sensors. The system uses fuzzy logic as a controller for the trash can lid. In this study, the maximum distance that the ultrasonic sensor reads in the trash is 30 cm, the shortest distance is 0 cm, while the weight sensor reads 0 Kg to 40 Kg according to the capacity of the trash can. Data processing uses ESP32, which functions as a medium for processing and sending data. From the tests carried out, the accuracy of the ultrasonic sensor HC-SR04 has a deviation of 20%. At the same time, the deviation of the Load Cell weight sensor is 1%. The action of opening and closing the trash cans is determined using the fuzzy logic method with 100%.

A Review on A Greener Approach to Information Technology: Green Cloud Computing

Ashish Kumbhare, Naveen Kumar Vaishnav, Kiran Midiyam, G. Dileep Naidu — Fri, 19 Aug 2022 00:00:00 +0700

Cloud computing is a popular technology because it solves big computational problems by pooling resources and provides a variety of additional services through the internet. The need to improve cloud performance has arisen as a result of computational offloading and the growing requirement for quick and suitable responses for real-time applications. Furthermore, the enormous rise in data and requests has necessitated the construction of a significant number of data centers throughout the world. As a result of the high energy consumption of data centers, this raises the economic and environmental costs. Furthermore, the production of CO2 and other greenhouse gases has opened the way for the expansion of the carbon footprint and, as a result, the greenhouse effect. Green technology is propelled by these forces. As a result, energy-efficient solutions that make the most use of existing resources are required. This article gives a summary of the cloud system, as well as the metrics that must be satisfied in order to have a green cloud computing flavor, and the existing methods.

Assessing the Impact of the Internet of Things Integration on the wellbeing of People in Office spaces, Nigeria: A Review

Fri, 19 Aug 2022 00:00:00 +0700

The Internet of things technology is widely becoming an accepted cutting-edge innovation for buildings of various purposes. Because of the numerous benefits of the Internet of Things Technology for building owners, occupants and managers, the concept of integrating this data-driven innovation in residential and commercial spaces is a phenomenon that can be harnessed for the wellbeing of people. Reports have shown that there is a growing rate of mental illness in office spaces in Nigeria and across the globe. As such, this study assesses the impact of the Internet of Things technology on the wellbeing of office-space users. The methodology adopted by this study is qualitative in nature whereby parameters and variables gotten from literature on mental health illnesses were analysed categorized according to the IoT solutions in order gain insights on addressing mental health challenges in office spaces. The sampling technique used to collect qualitative data was non-random. It was discovered that the IoT technology offers an opportunity to understand and optimize space management for user comfort of office dwellers. Hence, it is recommended to incorporate the use of the Internet of Things technology in order to adequately adjust people-management structures to suit the various wellness needs of office-space users

Machine Learning For Identification of Learning Modalities

Julia Kurniasih, Agung Budhi Wibowo — Fri, 19 Aug 2022 00:00:00 +0700

Learning modality is a way of absorbing information through our senses. Learning modalities are important to identify because the potential for successful learning in academics is one of them supported by the right learning modalities. The appropriate learning modality will support a person's success in learning and achieving good achievements. Machine Learning is a subset of Artificial Intelligence (AI) that can understand the structure of data and put that data into models that people can understand and benefit from. This study aims to identify a person's learning modality by implementing Machine Learning techniques using the Forward Chaining method. Forward Chaining is a method of concluding based on existing data or facts that lead to conclusions. Forward Chaining searches from a problem to a solution. The parameters used in this study are communication, learning, preferences, memory, and attitudes. The results of the identification of modalities are categorized into seven types, namely visual, auditory, kinesthetic, visual-auditory, auditory-kinesthetic, visual-kinesthetic and visual-auditory-kinesthetic.

Code Creator Application Design to Create CRUD Module on Codeigniter Framework

I Wayan Candra Winetra, Edhy Sutanta, I Wayan Julianta Pradnyana — Fri, 19 Aug 2022 00:00:00 +0700

Codeigniter is a robust PHP framework to help developers build their web applications. This research aims to create a code creator application to automatically generate the CRUD (Create-Read-Update-Delete) module in the Codeigniter framework project to help the developers accelerate the making of the web project, especially in making the back-end module. CRUD module is created using a prototyping model approach, programming architecture using MVC (Model-View-Controller), and the Java language to develop the code creator application. The research conclusion is that the application can produce a CRUD module that works correctly, with printing and export to excel features. Still, the applications cannot handle the relations between tables that will need future work

Implementation of Inverse Kinematics Method for Self-Moving on Hexapod Robot

Syamsul Ma'arif , Dyah Ari Susanti, Muchamad Malik — Fri, 19 Aug 2022 00:00:00 +0700

The development of robotics is overgrowing with the increasing number of robot competition activities in Indonesia. One of the divisions in the Indonesian robot competition is smart robots. One of the obstacles in the smart robot competition is the uneven playing field. The design of the legged robot system is an option to overcome these obstacles. The smart robot has six legs resembling insects, often called a hexapod robot. This study aimed to determine the results of implementing the inverse kinematics method on the balance of the hexapod robot when doing self-moving. This research starts by designing the mechanical system of the hexapod robot, designing the self-moving, and testing the balance of the self-moving on the hexapod robot with the inverse kinematics method. The design of the mechanical system includes the design of the robot body layout, the design of the robot legs, the sensor settings, and the servo motor movement settings. Designing the hexapod robot body's layout includes determining the number of legs on the robot body, as many as six robot legs. While in the design of the robot legs, each robot leg has 3 degrees of freedom. A servo motor drives each angle of degrees of freedom on each leg of the robot, so the number of servo motors needed is 18. Furthermore, the design of the self-moving system includes the analysis of the coordinate transformation of the robot body and legs. The last stage is to test the self-moving balance using the inverse kinematics method on the hexapod robot. The test is carried out by determining the initial angle on each servo motor of each robot leg, then moving the robot leg on the Y axis from 72 to 78.9 to obtain a change in angle with the same pattern at the initial angle. This shows that the inverse kinematics method is suitable for adjusting the balance of the hexapod robot when doing self-moving.

Methodologies of Artificial Intelligence in Power System

Seemant Tiwari — Sat, 20 Aug 2022 00:00:00 +0700

Much of the emphasis in energy systems assessment has shifted away from previous mathematical modeling, which originated in the areas of operations research, control theory, as well as numerical methods, and toward the less stringent approaches of artificial intelligence (AI) from the probably early 1980s. Frameworks, fuzzy sets, artificial neural networks (ANN), as well as, most lately, adaptive computation are the most common AI methods used in energy systems application areas. Such methodologies, as well as the energy application programs, will be discussed in this study. The goal of this study is to showcase some primary artificial intelligence technology utilized in power systems, wherein previous techniques will be unable to keep up with all functioning and routing conditions. By managing voltages, consistency, current flows, and load frequency, such strategies improve the energy service's performance and efficiency. AI technology to be used in power system operation, supervision, and management. Furthermore, the article will focus discuss the long-term benefits of using AI in power systems.

Forensic Analysis of Soil Improvement Methods in River Delta Area for Railway Mode

Angga Darmawan — Fri, 19 Aug 2022 00:00:00 +0700

In the context of the construction of a railway line, it is necessary to design an efficient and safe embankment construction. Therefore, the construction design needs to be studied using relevant data to obtain an embankment design that meets the needs so that the implementation process is not disrupted. This paper will present the results of the evaluation related to the condition of the existing embankment as well as alternative methods of soil improvement and embankment reinforcement, slope stability, settlement analysis and soil bearing capacity. Based on drilling data (SPT), soft soil is located up to a depth of 40 m and hard soil up to 60 m has not been found, plus additional information that the area is a river that has been filled and settlement has occurred about 32 cm. Analysis result of the existing state will continue to decrease to 2.7 m and add nonsolid embankment material. The first alternative is to dismantle the existing embankment, then the base of the embankment is repaired with geotextiles and embankment reconstruction according to standards, considering the addition of periodic ballast because it is still down by 1.78 m. The second alternative is the box culvert structure, considering the smaller load from the embankment. The settlement of consolidation that occurs is quite small at 0.126 m

Load and Capacity Evaluation of 32 Meters Prestressed Concrete I-Girder

Muhammad Iswahyudi, M Afif Shulhan, Dewi Sulistyorini, Ziyan Fariz Karomah — Fri, 19 Aug 2022 00:00:00 +0700

Design methods of a civil structure are continuously improved to keep up with the building technology. One aspect of design methods evolution is a change in the codes or regulation which regulates structural safety to achieve the desired performance. This paper investigates the implication of the new load regulation (SNI-1725-2016) to the structural capacity of a single prestressed concrete I-girder (PCI Girder) with a span of 32 meters. The numerical analysis in this paper was carried out on CSI bridge software to model a single girder with 32 meters of span and 1,6 meters of height. The transfer of prestressed force on the girder is provided by a-high strength strand embedded in 54 MPa of concrete. The analysis showed that a single PCI girder sustained an ultimate flexural loading (Mu) of about 11,83 kNm and, at the same time, provided a 13,5 kNm of flexural capacity (Mn). Based on the result, it is concluded that applying a new loading rule to a single PCI Girder does not affect the capacity requirement.

Pavement Condition Index (PCI) Method for Road Damage Analysis

Febriani Datu Sarira, Lilik Hendro Widaryanto, Ahmad Mashadi — Fri, 19 Aug 2022 00:00:00 +0700

Roads are economic supporting infrastructure that must be developed and maintained so that the movement of goods and people is smooth and will improve the community's economy. Road damage greatly affects economic growth, road damage is caused by high traffic growth so that it exceeds road capacity and vehicle loads that exceed capacity. Damage to this road, among others, polished aggregate, stripping, corrugation, photoles, bleeding or flushing.The purpose of this research was to find out what types of road damage and the value of the condition of the existing pavement on Kaliurang Street KM 14, Yogyakarta using the Pavement Condition Index (PCI) method. The Pavement Condition Index (PCI) method will determine the category of road damage. This study takes data from the field by measuring damage and taking damage documentation to determine the type of damage.Based on the research that has been done, the results of the analysis show that there are six (6) types of road damage that occurred on Kaliurang Street KM 14, Yogyakarta, among others, Crocodile skin cracks, longitudinal/transverse cracks, Grain release, Patches, Block cracks, and Holes. With an average PCI value of 32.4, the condition of the pavement on Kaliurang Street KM 14 is categorized as Poor.

Absorption of Cadmium (Cd) Metal Particulates on Tanjung (Mimusops Elengi) and Bungur (Lagerstroemia Speciosa) Leaves

S Sunarsih, A.D Warisaura, G Andaka — Fri, 19 Aug 2022 00:00:00 +0700

Selection of the right road shade plants can help maintain urban air quality. In this study, the absorption pattern of
Tanjung (Mimusops elengi) and Bungur (Lagerstroemis speciosa) plants for cadmium metal particulate matter
deposited on the leaf surface was observed. Sampling was carried out 3 times in the dry season with an interval of 10
days. The sampling point is on the edge of the highway, taking 3 locations which are each about 600 m apart. Leaf
samples were taken at a height of 3, 6, and 9 m. The particulate samples in the leaves were destroyed and then analyzed
for cadmium content using Atomic Absorption Spectrophotometer (AAS). The results showed that the average
particulate deposited on the surface of Tanjung leaves was 1,210.20 g/g leaf weight, while on Bungur leaves it was
only 965.90 g/g leaf weight. This happens because the composition of the Tanjung leaves is more dense with a circular
crown and branching than the Bungur leaves. Although the particulate weight in Tanjung leaves was higher, the
average Cd content in particulates was lower at 0.00124 g/g leaf weight, while in Bungur leaves it was 0.00176 g/g
leaf weight. It is suspected that Tanjung leaves have a faster Cd absorption rate than Bungur leaves. This was
confirmed by the higher average Cd content in Tanjung leaves, which was 0.00157 g/g leaf weight, while Bungur
leaves were 0.00136 g/g leaf weight. It can be concluded that the Tanjung plant captures more particulate matter than
Bungur leaves, except in the railroad track area where periodic vibrations often occur. The leaves of the Tanjung plant
also absorb Cd metal faster from the particulates that deposited on it than the leaves of Bungur.

The Compressive Strength of Fly Ash and Stone Dush in Concrete

Dewi Sulistyoini, gga Chandra Galuh, Mafazi Azizan — Fri, 19 Aug 2022 00:00:00 +0700

Concrete is one of the most used in construction materials because it is easy to shape. In other
condition, the material that form the concrete is decreasing, so innovation of concrete materials is needed.
One of them uses fly ash and stone dust as a cement substitution. Fly ash is a by product from burning
pulverized coal in electric power generating plants, than stone dust is waste material obtained from crusher
plants. Both of these materials are widely produced but have not been optimally utilized in concrete
materials.In the present investigation, an experimental program was carried out to study the workability
and compressive strength of concrete made using fly ash type C and stone dust as partial replacement of
cement in the variation of fly ash is 0%, 5%, 10%, 20% and 30%, than the variation of stone dust is 0%
and 10 %. The compressive strength planned is 25 MPa in 28 days curing. The research uses 15 specimen
cylindrical test. The result of the slump test BN, BFA-5, BFA-10, BFA-20, BFA-30 are 10 mm, 10
mm, 9 mm, 8.8 mm, and 8.2 mm. Result of compressive test BN, BFA-5, BFA-10, BFA-20, BFA
– 30 are 27.46 MPa. Result showed that by replacing of cement with 10% fly ash and 10% stone
dust (BFA-10) of optimum compressive strength.

Comparative Study of Unit Price Analysis of Wages, Materials and Equipment on Excurement Work and Head Works Between SNI Method and Field

Cornelius Agatho Gellu — Fri, 19 Aug 2022 00:00:00 +0700

In this study, an analysis of the results of the analysis calculation was carried out unit price of work by using the SNI analysis method with Field. This research takes a case study of Village Road Improvement Mukun Komba City District, East Manggarai Regency, Nusa Province East Tenggra. Equation in
calculating the unit price analysis of work, on the job Ordinary Soil Excavation and Ordinary Backfill of the two methods are components which include wages, materials and equipment. While the difference is the calculation of the coefficient value and unit price. Where in the analysis The field does not have equipment that is in accordance with the SNI method, such as: Water Tank Truck, Excavator Motor Grader, and Motor Grader. Comparison calculation results for ordinary soil excavation work the results obtained for field analysis obtained the lowest price, namely Rp 77,770,00 compared to the SNI analysis of Rp 93,578.87. As for the results Comparative calculations on ordinary embankments get results for field analysis get the highest price, which is RP 1,001,391.00 compared to the analysis SNI is IDR 183,097,79.

Analysis of Road Damage Using The Bina Marga Method (Case Study Of The Balirejo Road Section, Special Region of Yogyakarta)

Germaldus F, Zainul Faizien Hasa, Dimas Langga — Fri, 19 Aug 2022 00:00:00 +0700

Roads are land transportation infrastructure that includes all parts of the road and road damage is defined as a condition that describes road conditions that cannot function optimally. Road damage is classified into several such as cracks, distortions and surface defects. This research was conducted on the Balirejo road in the city of Yogyakarta. This study has several objectives, namely to determine the dominant type of damage that occurs on the Balirejo road, Yogyakarta City, to determine the value of the largest and smallest damage conditions on the researched road, to determine the amount of traffic volume in a certain time unit and to determine the priority value of handling and road repair. Based on the research and the results of data analysis using the Bina Marga method, the results showed that the type of damage that often occurs on the Balirejo road is cracked damage with a total damage of 33,875 cm². The biggest damage value is crack damage with a damage value of 33,875 cm². The total traffic volume is 501.2 pcu/hour and the priority value for handling or repairing the Balirejo Yogyakarta road section is a priority value of 9.33 which is categorized into routine maintenance program roads.

Analysis of Road Surface Damage Level on Road Surface Campurejo-Wates, Temanggung Regency using The SDI (Surface Distress Index) Method

Wachid Nur Ihsan, Widarto Sutrisno, Dimas Langga — Fri, 19 Aug 2022 00:00:00 +0700

The The road is the access used by everyone to get to the place they want to go. Therefore, the existence of good access facilitate the means of transportation pass easily. Basically, along with advances in technology, development, and transportation, the quality of the roads will get better which was originally known as macadam roads (rough pavement), now has developed into hot mix asphalt/asphalt roads (flexible pavement). Now the constituent materials in road pavements are also easier to assemble and moreover the process is faster, because they have been assisted by much more sophisticated tools. In this case, with the facilities that have been developed by researchers and experts, the stages in the planning, manufacture, and maintenance process. Researchers developed a variety of different methods, including; method that is often used and until now has become a reference in research. There are SDI, RCI, PCI, IRI and so on. Such as the research conducted on the road section on the Campurejo-Wates road section. This study uses the SDI method from the District Office of Highways for analyzing, researching, and interpreting. A total of 22 segments with a total of STA+7850 with 76 stations . There are 8 segments that have been identified in this study. In collecting data, researchers used 2 data variables, namely; Primary Data and Secondary Data. In Primary Data, the researcher emphasizes direct research in the field/direct surveys at the location. Meanwhile, in secondary data collection, researchers get data from related agencies. The test results obtained an average SDI of 4.873418 which was collected from the cumulative total SDI data of 8 segments per 100 m with a total distribution of 76 STAs.There are several classifications of damage obtained in this study, such as; cracked hair, cracked crocodile skin, and heavily damaged. So, it is necessary to strive for maintenance and improvement in this section.

Unit Price Comparison Analysis Study on Job Couple of Stone with Mortar

Asamalia, Widarto Sutrisno, Zainul Faizen — Fri, 19 Aug 2022 00:00:00 +0700

Procurement of building work cannot be done haphazardly, there are special standards that must be met by workers involved in implementing the project. In a project work to calculate construction costs, it is necessary to make a detailed analysis/calculation of the amount of materials used and the wages of workers. This calculation is usually known as construction cost analysis, which is needed as a means to improve the efficiency and effectiveness of development activities in the construction sector. The purpose of this study was to determine the percentage difference in the unit price of materials and wages for masonry and mortar work between the SNI analysis method, and the field, and to determine the dominant component that differentiates and equals in the preparation of unit price analysis. The research method uses quantitative analysis. Where the SNI analysis data is compared with field analysis data. The results of this study indicate that in the component of the tool there is a ratio of the largest percentage difference, which is 12.341% and in the ratio of the percentage of the smallest difference to the component of the material, which is -0.167%. In the description of the concrete mixer material, there is a large index difference ratio of 12.210% and the decomposition of rock material, there is a small index difference ratio of -0.1%. So that the percentage difference in the total unit price of materials, wages and tools is -0.143%. There is a difference in the description of the tool components between the SNI and field analysis methods. That is, there are additional descriptions such as other materials in the field analysis, while in the SNI analysis there is no description of other materials. And also there is a difference in overhead + provision where in the field analysis it is 10% while in the SNI analysis it is 15%.

Analysis of Bearing Capacity and Degradation of Borepile Foundation on Kretek Bridge Construction Project

Unun Muhammad Nurrohman, Zainul Faizen Haza, Dimas Langga Chandra — Fri, 19 Aug 2022 00:00:00 +0700

A strong bridge must have a solid foundation. A foundation is a foundation a strong building. one of the foundations commonly used in construction the bridge is a borepile foundation. The kretek 2 bridge is built using a foundation borepile and piles. So it is necessary to do research on the foundation borepile using existing N-SPT data in the project environment. The purpose of this study, in order to obtain the results of the carrying capacity and reduction obtained from the calculation of the N-SPT. Capacity calculation result bearing capacity of the foundation using the method of O'Neil and Reese obtained 3418.09 KN and foundation settlement using the Poulos and Davis method obtained 20 mm.

Analysis of Safety Management System Implementation and Occupational Health (SMK3) In Development Projects Red White Hospital

Novia Ciptaningrum, Iskandar Yasin, Lilik Hendro Widaryanto — Fri, 19 Aug 2022 00:00:00 +0700

To prevent the risk of accidents in the construction sector, implementation steps are taken Occupational Health and Safety Management System (SMK3) in each project. This research carried out at the Red and White Hospital construction project located in Magelang. Project this is implemented by PT Gantayu-Priyaka. OHS planning on the project has been carried out with good. The purpose of this study is to determine the value of implementing SMK3 based on PP No. 50 Tahun 2012 Regarding the Implementation of SMK3, knowing the completeness of Safety and Health facilities Work (K3) based on PERMEN PU No. 5 of 2014 concerning Construction SMK3 Guidelines Public Works and the correlation of safety facilities with risk impacts. Which method used is descriptive qualitative. The results obtained are the level of implementation of SMK3 on the project reached 68.75% and categorized in good application. For completeness of K3 facilities on the project reached 78.33% and categorized as good too. Correlation between facility variables safety with the risk impact variable on the project resulted in a negative correlation and shows a value of -0.9964, so that the variables are categorized as strong and mutually exclusive influence

Internal Water Treatment Plant Effectiveness Improving The Quality of Clean Water Treatment

Metta Dhamayanti, Dewi Sulistyorini, Lilik Hendro Widaryanto — Fri, 19 Aug 2022 00:00:00 +0700

Clean water is of the human rights that must be fulfilled in order to survive. Water demand is not only related to quality, but also quantity. Therefore, adequate water treatment is needed to make water fit for consumption. This research was conducted at the West Semarang SPAM Water Treatment Plant. The purpose of this study was to determine the effectiveness of the Water Treatment Plant (WTP) in improving the quality of clean water treatment . The method used is using qualitative data. The results obtained from this study are that the Water Treatment Plant is very influential and has been effective in water treatment and the results of monitoring the level of turbidity of water in September showed the average turbidity of raw water was 43.07 NTU. After going through the water treatment process, the turbidity of the water decreased by an average of 42.38 NTU with an average turbidity of 0.69 NTU. The results of monitoring the level of water turbidity in October showed an average raw water turbidity of 14.59 NTU. After going through the water treatment process, the turbidity of the water decreased by an average of 13.92 NTU with an average turbidity of 0.67 NTU. The results of monitoring the pH of water in October showed the average pH of the water was 8.44, after going through the water treatment process, it changed to an average of 7.6. The results of monitoring the pH of water in October showed the average pH of the water was 7.64, after going through the water treatment process it changed to an average of 7.51. The results of the September and October water quality tests with parameters of Microbiology, Inorganic Chemistry, Physical, Chemical are in accordance with the drinking water quality standards set by PERMENKES

Evaluation of The Performance of The Jalan Structure Due to Pasar Activities Market Prawirotaman – Jalan Parangtritis

Dede Rachmat Dirja, Ahmad Mashadi, Widarto — Fri, 19 Aug 2022 00:00:00 +0700

Market activity is part of shopping service trading activities. Activity itself is an activity carried out by a person for various purposes, such as: work activities, shopping, school, recreation, and others. Activities that involve humans and vehicles certainly have an impact on the road network and traffic. Every land use or activity system with a specific use will generate movement and will also attract movement in the process of meeting needs. Regarding market activities, land use which has a considerable influence on traffic movement is trade. The purpose of this study is to determine the performance condition of the Parangtritis road section around Prawirotaman Market and determine the level of service of the Parangtritis road section. The research method used is to use primary data which is data obtained from the first party without intermediaries or data taken through direct observation at the research site is used by researchers to answer or solve problems from a researcher directly from data sources and use secondary data. is data obtained indirectly from the original sources of archived historical evidence, records, and reports. After obtaining primary data and secondary data, calculations were carried out using the help of MS. Exell's highest vehicle volume occurred on Monday at 07:00-08:00 at 5238 vehicles/hour. The highest side obstacle on this road segment is included in the medium side obstacle class category (S) with a frequency value of occurrence on both sides of 340.9 events/hour which occurred on Thursday, November 25, 2021. The moderate side obstacle category (S) resulted in the speed of free flow on the Parangtritis road section is getting lower at 29,839 km/hour so that on the Parangtritis road section in front of the Prawirotaman market the road capacity is 1143.9975 skr/hour, the degree of saturation (DJ) is 0.851 so that the road service level is E with the characteristics of the traffic flow being unstable, the speed is sometimes stopped, the demand is approaching capacity.

Analysis Of Accident Problems On The Yogya Road Segment Winosari, Gunungkidul Regency

Diki Setya, Dewi Sulistyorini, Afif Shulhan — Fri, 19 Aug 2022 00:00:00 +0700

Gunungkidul is a district in the province of the Special Region of Yogyakarta, with an area of 1,485.36 km², almost half of the Yogyakarta area, which is 43.63%. One of the main roads in Gunungkidul Regency is the Jalan Yogya – Wonosari section which is a national road. Gunungkidul is also an area with many destinations tourism, it is also one of the factors causing traffic accidents that occur, negligence and the winding road conditions in Gunungkidul are also the causes accident. The purpose of this study was to analyze the characteristics of accidents, Analyze the factors that cause accidents. Analysis of This study uses the Accident Equivalent Rate (AEK) method with a total of the highest of 192 and also the Z-score with the highest number of 1.307402893. From the results of the analysis The main factor of the accident was human (28 single accidents). Type of vehicle that frequently involved are motorcycles (120 vehicles). The type of single accident accident becomes most accidents with (28 incidents). Accident-prone hours are at 06.00 – 12.00 (33 events). The location of the accident-prone area on the Yogyakarta Road Section Wonosari is at Km.30 – Km.36 (33 events). Accidents that occurred during 1 year (2020) on the Yogyakarta-Wonosari Road Section, Gunungkidul Regency is as many as 87 events. The total number of victims was 111 minor injuries and 6 died. From data and conditions at the site can be recommended that to reduce past accidents traffic, it is necessary to add lighting at the location, because the road conditions are dark and winding at night can reduce visibility and prone to accidents.

Factor Analysis Of Accident On Parakan Road – Kledung Temanggung Regency (Case Study of Accident Areas in Temanggung Regency)

Richa Ulya Nugraha, Agus Priyatno, Dimas Langga Chandra — Fri, 19 Aug 2022 00:00:00 +0700

Jalan Raya Parakan – Kledung is one of the middle cross national roads liaison between Wonosobo Regency and Temanggung Regency. And that behind the problem of the occurrence of accidents is how to know the area which are prone to accidents and what are the factors that cause traffic accidents in Indonesia? Parakan – Kledung road, Temanggung Regency. Analyze and find out characteristics, accident class data, accident time, type of vehicle involved, and the type of accident that occurred. on the Parakan-Kledung road, Temanggung Regency with AEK method and traffic counting. Factors that cause traffic accidents are mostly due to human error or human error, and some are due to factors vehicle and road conditions.

Yogyakarta-Magelang Road Accident Analysis Sleman District

Abdul Nurroman Wahyu A, Dewi Sulistyorini, Widarto Sutrisno — Fri, 19 Aug 2022 00:00:00 +0700

A traffic accident is an accident on the highway that involving vehicles with other road users resulting in human casualties and material loss. This research is expected to find out the cause of the accident traffic, especially the characteristics of the accident, the factors of the accident and the location accident prone (BlackSpot). This location is taken is Jalan Raya Yogyakart Magelang KM 01-18 Years 2018-2020. This accident-prone identification uses the Accident Equivalent Number (AEK) method and the Z-Score method. As for the results According to the study, the number of accidents in 2018 was 79, in 2019 was 140 and the year 2020 is 149 which means accidents from year to year experience enhancement. Accident-prone lanes are at KM 6-12 with AEK 728 and Z-Score results 0.920603 and at the 2nd prone location in KM 12-18 using the method AEK 551 and Z-Score method 0.143327. For further researchers, the analysis can be carefully analyzed accidents based on driving license (SIM) and accident analysis based on weather and driving speed.

Comparisonal Analysis of RAB (Cost Budget Plan) Metode Konvesional with Metode BIM (Building Information Modelling) (Studi Kasus Gedung Kuliah Tiga Lantai di Yogyakarta)

Anton Ainurrofiq — Fri, 19 Aug 2022 00:00:00 +0700

Cost Budget Plan (RAB) is Calculation of the amount of costs required for materials, tools and wages, in volume units, time, and density well as other cost, related to the implementation of work on the project. The purpose of this research is calculate and know the results volume ratio of a software Building Infomation Modelling (BIM) that is One of which is Tekla Structure with conventional calculations. Result of conventional volume calculation and Tekla Structure there are some differences that is: made of concrete, iron, Steel WF, and Light steel. Then the cost is less Rp. 250.889.321,01 (DTwo Hundred Fifty Million Eight Hundred Eighty Nine Thousand Three Hundred Twenty One Point Zero One Rupiah) of cost RAB plenner (Conventional).

Sabodam and the Impact Sand Mining Of Merapi

Rokhmat Hidayat — Fri, 19 Aug 2022 00:00:00 +0700

The 2010 eruptions of Mount Merapi resulted in 140 million m³ of pyroclastic materials. The eruptions carried associated eruption hazards and lava floods that transported sand, gravel and stone materials. However, apart from hazards, the eruptions present deposit of mineral sand and stone, which are the most populer materials on the market. In anticipating lava flood disaster, the government built a number of sabodam. It is a construction to control the flow of debris or lava, built across the river. The working principle is to control sediment by containing, partially accommodating and draining the material/sand carried by the flow. The sand accommodated by the sabodam has high volume and excellent quality for materials, making it highly desirable to mine. However, over-excavation of sand in the rivers of Mount Merapi, exceeding the natural supply from upstream, will degrade the riverbed. Therefore, a sandstone mining mechanism needs to be established. It should regulate permitted locations and volumes so that sandstone material can be mined without disrupting the sabodam. Without a proper mining regulation in place, sand reserves will be depleted and the existence of sabodam is threatened.

Application of Occupational Safety and Health (K3) on The Project ASANKA Building Yogyakarta Development

Joseph Jaga Nuhan, Dewi Sulistyorini, Angga Darmawan — Fri, 19 Aug 2022 00:00:00 +0700

Yogyakarta is a unique city, it is very possible to continue to build centers and infrastructure along with office buildings, shopping centers, accommodation and apartments. OSH software in production initiatives plays an important position in maintaining, protecting and fostering a safe, healthy and accident-free environment. During the implementation of the OHS program, some stakeholders still need to provide guidance to construction workers, but apart from that, the level of knowledge and understanding of workers is still very low, which can cause problems. can cause obstacles in the implementation of the excise program. This study aims to identify the implementation of the K3 program and the obstacles in implementing this program in the Yogyakarta Asanka building project. This research was conducted by distributing questionnaires to the Yogyakarta Asanka Building Construction Project. With the results of distributing questionnaires on the project with the number of respondents as many as 32 people with their respective roles/tasks in construction projects. Data analysis was carried out in Microsoft Excel, then the data was processed using a tool to determine the average distribution of the questionnaire and the standard deviation to measure deviations from the average size. the same sample of results with different deviations, measurement deviations to show the difference between high and low in the data obtained. Based on the results of the analysis it is known that the average value of the K3 program obtained is 4.586. This assessment concludes that it is important to protect the community by installing OHS signs inside and outside the project as well as signs indicating the presence of heavy vehicle paths to alert them at all times. workers about the importance of safety in the workplace and appealed to the public to always be careful around ongoing construction projects. For the constraints on OSH adoption, the mean obtained is 4.423, this assessment concludes that the constraints on OSH adoption are on the part of the workers, which is caused by the workers' lack of knowledge about K3 and the requirements of workers who are still in basic needs because personal safety is not a priority.

The Stability of Banjar Traditional House “Bubungan Tinggi” Roof Truss Structure

Miftahul Iman, Muhammad Yusuf Amir, Aminullah, Fitriansyah, Dewi Sulistyorini — Mon, 22 Aug 2022 00:00:00 +0700

Banjar traditional house architectural had been identified by symbolization that was emphasized on roof truss structure, ornamental style, decorative and symmetrical. Since 1871-1935 Banjar traditional house had been populer in Borneo people environmental. Bubungan Tinggi was one of the famous Banjar traditional house. Considering the geometric and the durability of the material the roof truss structure of Bubungan Tinggi should be evaluated in strength design and buckling capacity. This research investigated the strength and stability of the Bubungan Tinggi roof truss structure by performing the numerical analysis that were based on finite element method. Several idealization had been developed in this research such in 2D truss and 3D solid element by conducting some numerical software analysis then to be compared. The direct symmetrical property had been involved by introducing the material nonlinearity. Furthermore in buckling analysis, the 3D solid had been run in eigen value analysis. The results showed that the Bubungan Tinggi roof truss structure strong enough for supporting the loads. The result also showed the chord of the roof truss structure had high vulnerability in buckling failure. More stiffener member had been recommended to avoid the buckling failure occurred immediately

The Flood between the Balance of Natural Systems and the Challenges of The Future

Ahmad Mashadi — Mon, 22 Aug 2022 00:00:00 +0700

The Water is a gift from God Almighty that is needed by all living things. The availability of water for human and other commercial purposes includes the quality and continuity of social, environmental and economic functions. Water as a natural resource can be renewed even though it is influenced by various interests and goals. Population growth, development of settlements related to water is still ongoing. The development of settlements is one of the causes of the reduced water catchment area in the rainy season which increases the volume of runoff that causes flooding. Floods are often associated with the rainy season causing damage in various places. On the other hand, the availability of water tends to decrease, but the demand for water increases and drought can occur in the dry season. Changes in water quantity and quality can cause problems, so it needs to be managed with an integrated approach. Management with efforts to reduce damage due to flooding and minimize drought in the dry season. A rational approach to flood problems is carried out in an area that synergizes between regions with an eco-drainage system. This system can control excess surface water and the opportunity for a lot of water to seep into the ground. This is intended so that groundwater conservation can take place properly and the dimensions of the drainage building structure are more efficient. Other efforts that can be done in several areas are by building retention ponds, infiltration and so on.

Sediment Deposit of Merapi Mount Eruption

Mon, 22 Aug 2022 00:00:00 +0700

The eruption of Mount Merapi at the end of 2010 has completely changed the landscape in the affected areas, namely at the foot of the mountain to the south and west. The potential deposit of material that has been spewed out at the time of the eruption is estimated at around 140 million m3, this is a fairly large volume compared to several previous eruptions. From this analysis, three lines are obtained that describe the elevation of the riverbed for both the longitudinal and transverse sections. The addition of sediment deposits mostly occurs in the upstream area and is estimated to come from rain lava floods. This study provides an overview of the condition and position of the riverbed elevation, both longitudinal and transverse in the Gendol, Kuning and Boyong rivers and the volume in each cross section. Normalization of the river is needed to provide space for the river channel, so that if there is a flood, the lava rain can be filled again and not endanger the surrounding area.

Damage Value of Wave Breaker Protection Coating That was Placed by Organized and Raised Due to Wave Attack

Ida Bagus Agung — Mon, 22 Aug 2022 00:00:00 +0700

Protective layer of crushed stone material has been widely used in flexible breakwaters to protect the coast from damage. The formulation of the problem in this study is: does crushed stone material as a protective layer of breakwater which is placed in an arranged manner will give a smaller damage value than that which is placed in a random way when it gets attacked by waves? The purpose of this study was to determine the amount of damage to the protective layer of the breakwater which was placed in an arranged and randomized manner due to wave attack. For this purpose a model of the sloping side breakwater structure is made. The main tool used in this research is a wave channel equipped with a wave generator, a wave height measuring device, a computer equipped with a wave synthesizer program. The protection layer stability test was carried out with a wave attack duration of 100 minutes, at a depth of water in front of the leg of the breakwater of 13 cm on the model scale. The damage to the protective layer is calculated based on the ratio of the protective layer material that has moved from its place to the material affected by the wave attack. The results showed that the protected layer of crushed stone which was placed in an arranged manner had a smaller damage value when compared to the protected layer of crushed stone which was placed randomly at the same wave height attack

Strength and Strength of Lightweight Steel Reinforced Concrete Beam

Mon, 22 Aug 2022 00:00:00 +0700

In the world of construction, reinforced concrete beams use longitudinal reinforcement in order to withstand the tensile stress that occurs in the cross section of the concrete beam and the longitudinal reinforcement used is steel reinforcement (rebar reinforcemen). Tensile stresses reaching 420 MPa are the main reason for reinforcing steel used in reinforced concrete beams, however, due to technological developments, there are materials that have tensile stresses that exceed reinforcing steel, namely mild steel. mild steel is light cold rolled steel with high quality which is light and thin, but has a tensile stress that exceeds ordinary reinforcing steel, which is 550 MPa, so in this study we will use mild steel reinforcement for C channel and U channel as reinforcement. concrete block structure. The purpose of this study was to determine the difference between the flexural strength of concrete beams using mild steel and concrete beams using steel reinforcement and to calculate the stiffness value. This research was carried out through several stages, namely: procurement of materials and equipment, inspection of materials and equipment, planning of concrete mixes, concrete manufacture, concrete treatment (curing), concrete testing and analysis of research results. from samples with 2 comparisons that have been tested, the average flexural strength value in 3 samples of reinforced concrete beams with mild steel reinforcement is 391.96 kg/cm² U channel and the average flexural strength value from 3 samples of C channel is 385, 44 kg/cm² and for the average value of the shear strength test results from 4 U channel specimens is 66.28 kg/cm².

A Critical Literature Review on the Factors Causing Delays, Failures and Abandonments of Construction Infrastructure Projects

Mon, 22 Aug 2022 00:00:00 +0700

Globally, construction infrastructural projects are on-going on daily basis as their relevance to human existence cannot be over emphasized. However, the construction projects encounters several challenges that led to their delays, failures and abandonments which subsequently affected their level of completion and overall output in Nigeria and globally. This study shows the review of literature in the field of Project and Construction Management with focus on the aforementioned factors between 2016 and 2021. Findings from this study indicated that, quite a large number of infrastructural projects are affected by these factors in the past and are still largely prevalent throughout the Project Life Cycle (PLC) and further posited that in every project, these factors plays a major role which can act as either a bridge or barrier to infrastructural project delivery. The study recommends that for projects to be completed on time, cost and scope, project failure factors have to be put into consideration throughout the PLC with reasonably sufficient time dedicated to their analysis and acquiring sufficient knowledge of these failure, delay and project abandonment triggering factors before embarking on a choosing infrastructure project.

Work Accident Analysis at PT. Sinergi Perkebunan Nusantara Using Analytic Hierarchy Process Method (AHP)

Dicky Wirandi Siswoyo, Kartinasari Ayuhikmatin Sekarjati — Fri, 19 Aug 2022 00:00:00 +0700

Occupational safety and health is important to be applied to every line of the company, because it aims to avoid and prevent work accidents in the company. Work accidents occur if there are unsafe acts and unsafe conditions. If an accident occurs in the company, further analysis is needed to find out the main factors that cause work accidents. Therefore, PT. Sinergi Perkebunan Nusantara will be analyzed for work accidents using AHP method. This is done, because there are equipment and machines that dangerous in the process of processing palm oil into CPO. Based on AHP method, the main factor of work accidents is caused by human factors. Through the human factor, it can also lead to other factors, such as: workers who do not apply occupational safety and health, can affect their focus in paying attention to the condition of work equipment and the workplace environment. Government Regulation Number 88 (2019), defines that the workplace in the form of a field or space, open or closed, can move or stay. This means, all workplaces have a source of danger. Therefore, there is a need for further analysis on other lines of the company, so work accidents can be avoided

A Modernized Moth Flame Optimization Algorithm for Higher Dimensional Problems

Saroj Kumar Sahoo, Apu Kumar Saha — Fri, 19 Aug 2022 00:00:00 +0700

Moth flame optimization (MFO) algorithm is a relatively new nature-inspired optimization algorithm based on the moth’s movement towards the moon. Premature convergence and convergence to local optima are the main demerits of the basic MFO algorithm. To avoid these drawbacks, a new variant of MFO algorithm, namely a modernized MFO (M-MFO) algorithm is presented in this paper. Firstly, we added a self-adaptive levy distribution method before the position update phase of the MFO algorithm to enhance the search region. Secondly, we introduce a new type of parameter to strike a better balance between diversification and intensification. Third, we incorporate the Fibonacci search technique into the MFO algorithm after the position update phase to get around the problem of local optimal solutions and speed up convergence. The proposed M-MFO is verified by testing it on fifteen benchmark functions in higher dimensions (1000, for example), undergoing statistical experiments, and solving engineering design problems, and then comparing the results to those obtained by using other, more conventional optimization algorithms. The experimental results show that the proposed M-MFO algorithm outperforms competing stochastic algorithms in terms of solution quality and convergence rate. This encourages further research into topics such as multi-objective optimization, vehicle routing, job shop planning, and image segmentation.

Design and Fabrication of Automatic Metal Plate Cutting Machine

Rochmad Winarso, Rianto Wibowo, Puput I Qur’aini, Teteg Wahyu Pamungkas — Fri, 19 Aug 2022 00:00:00 +0700

The use of manual plate cutting tools has weaknesses, including low production speeds, uneven pieces of pieces, and expensive production costs. The design process is needed to resolve these problems and manufacturing a knife cutter can automatically operate. This study aimed to design an automatic metal plate cutting machine based on a pneumatic system. The design of this machine is focused on developing cutting machines in the knife manufacturing industry. The method of making machine design consists of movement simulation processes and pneumatic control using fluid simulator software (fluid SIM), cutting machine design using Autodesk inventor software, and mathematical design calculations. The results achieved in this study are prototypes of pneumatic system plate cutting machines that can work automatically with a capacity of 400 pieces per hour, the need for cutting force of 552 N, pneumatic pressure of 6.2 bar, and air debit 11.5 liters/minute. The results of this study show that machine design has several advantages. The manufacturing process is faster, the energy used is relatively small, and the use of labor is more efficient so that productivity increases. Some things recommended to be analyzed in the future include operator work safety factors, periodic maintenance systems, and the ease of getting spare parts.

Analysis of Raw Material Inventory Control Using Economic Order Quantity (EOQ) for Furniture Manufacturing Company in Indonesia

Catur Indri Cahyani, Argaditia Mawadati — Fri, 19 Aug 2022 00:00:00 +0700

Intense competition between companies requires companies to develop their products to meet increasingly high consumer needs. This requires companies to improve efficiency in all fields. One way to make it happen is by controlling the inventory of raw materials, in which the amount of inventory should neither be too much nor too little. The purpose of this study is to determine the order quantity of raw materials using the Economic Quantity Order (EOQ) method and determine the reorder point of raw materials at a Furniture Manufacturing Company. The result of this research shows that using EOQ can save the total cost for raw material inventory up to Rp 13.486.411. It also conclude that the optimal order quantity for raw material is 144,697 m³ where in a year the order is ordered 31 times and the point of reordering the company's raw materials is when the amount of raw material is 449.61 m³ thus the company does not have excessive raw materials

Design Modelling Test for R80’s aircraft Flight Deck with Human Digital Ergonomic Factors (HDEF)

Anantia Prakasa — Fri, 19 Aug 2022 00:00:00 +0700

To ensure the human/pilots and machines work together effectively in the aviation system, the airframers and equipment supplier should be focused their attention on reducing the complexity of aircraft technology by putting forward explicitly the “aircraft design philosophy” as a primary an outline of the top-level operational and Human Factors (HF) design principles that will dictate the design of the FlightDeck / Cockpit or the modification of a system in the Flight Deck. Most of the time the aircraft’s Flight Deck is equipped with Man-Machine-Interface (MMI) to operate the aircraft. The advent of touch screen type to simultaneously Control & Monitoring (C&M) has a positive implication, e.g. pilot or operator just see or watch in one certain area display. However, the repetitive eye movement along with hands to touch the display into the same display location tends to bring awkwardness. In addition, the repetition of tasks in the same location will be brought fatigue in long-term operational aircraft scenarios. To avoid the awkward & fatigue sourcing from those touch-screen control & display, it obviously needs to model the test of operational display C&M with respect to Human Digital Engineering Factor (HDEF).

Proposed Quality Improvement Using Statistical Process Control (SPC) Method on Picking Process at JD.ID Warehouse FMCG Marunda

Klarette Vivian Gloria Patty — Fri, 19 Aug 2022 00:00:00 +0700

JD.ID Warehouse FMCG Marunda is a company engaged in logistics which includes receiving goods from suppliers in the Inbound department, storing goods in the Inventory department and packing goods in the Outbound department. FMCG or Fast moving Customer Goods include Groceries and Health Care, Mother, Baby & Kids Products, Beauty Products. The main quality problem at JD.ID Warehouse FMCG Marunda occurs in the picking process in the Outbound department. The purpose of this study is to propose quality improvements to minimize the number of defective products during the picking process using three Statistical Process Control (SPC) quality tools, namely, Ishikawa diagrams, U Control Maps and Pareto diagrams. The use of Ishikawa diagrams to analyze the main causes of defects during the picking process with Man, Machine, Method, Measurement, Material factors. U Control Map to evaluate the picking process is within the limits of statistical quality control or not, the data processing process with U control chart uses the object of research, namely the defect data of the “Gulaku Gula Pasir Tebu 1 kg” product which is included in the Groceries product category with the highest defective rate during the period June-September 2021. Through analysis with the U Control Map, it is known that during the picking process it has not yet reached process stability so that it still produces defective products. The use of Pareto diagrams is to show the main types of defects in the the “Gulaku Gula Pasir Tebu 1 kg” product, namely ‘Sobek’ with a defect percentage of 72.7%. Therefore, need to manage Task Assignment to picker by considering the dimensions of the product, providing training related to material handling knowledge to the picker, making a routine 5R schedule, adding rubber as a bumper on the surface of the trolley. The implementation of this proposed improvement can reduce and streamline the standard time of the picking process, reduce the possibility of material handling products that are not suitable, causing defective products to be picked, and streamline picker mobility activities during the picking process.

Quality Improvement to Reduce Defective Rate of Bread Products Using Taguchi Method in UMKM Kembar Pastry

Siti Puja Oktaria, Elly Wuryaningtyas Yunitasari, Dyah Ari Susanti — Fri, 19 Aug 2022 00:00:00 +0700

Kembar Pastry is one of the Small Medium Enterprise (SME) in Kepri. There are relatively high defect products in the production process, namely 13.75% for small pillow bread. One of the causes of the high defect products is an inappropriate mixture of raw material composition and improper treatment settings. From these problems, it is necessary to improve product quality by determining the combination of raw materials and proper treatment settings to produce fewer defects using the Taguchi method and provide suggestions for improvements to enhance the quality of bakery products at Kembar Pastry. By using the Taguchi method, it can be seen what factors have a significant contribution to bread defects. The result of eight experiments showed that the optimal combination of factors and levels to produce the least defective product is the upper and lower flame temperature factor, the optimal temperature is 170^o C, the filling dose factor is 7 grams the burning time is 10 minutes. Suggestions for improvement for the company and the production process are the need for more detailed records, the required maintenance schedule, measuring spoons and dough molds, adding a weighing process before forming, and the use of rounding techniques

Application of Simulation for Cinema Queue Policy in the COVID-19 Era

Dutho Suh Utomo, Masrul Indrayana, Retno Widiastuti — Fri, 19 Aug 2022 00:00:00 +0700

In the COVID-19 era, in a situation where the number of COVID-19 sufferers has decreased, there was a policy that allowed opening a business with one condition being to maintain a distance from human queues, including cinema ticket queues. Simulation is a method for comparing policies by analyzing the results of their implementation. Costs can be reduced by implementing simulations because policy testing is done by executing the designed model without implementing it directly. Therefore, the purpose of this study analyzed cinema queues in the COVID-19 era by comparing the policies of the previously designed queuing system. To get an effective queuing policy, the analysis was carried out by comparing the queues of various policies by considering the distance between the queues. This study developed a queuing policy that reduced the number of queues. The results obtained can be used to recommend the cinema on how to design a queuing system to reduce queues while maintaining distance settings

The Fire Trucks Line Modelling for Fires Mitigation in Dense Settlement Population Using Agent Based Model Simulation Apporoached

Aprilla Warlisia Sandana — Fri, 19 Aug 2022 00:00:00 +0700

Emergency response conditions were an important part of the disaster phase scenario. The level of coordination of people and fire fighters agencies in the event of fire emergency response in coastal residential areas was quite low. This research was a simulation study and evaluation of information system mechanism and government coordination in fire disaster response in the dense settlement population of Tarakan, North Kalimantan. This study also presented an Agent Based Model simulation that were modeled the mobilization of fire trucks to the location utilized Net Logo. The time and speed of mobilization of fire trucks had been determined in some parameters. The results showed that the shortest path and optimal mitigation time were determined based on the accuracy of information and accessability to the fire location. A best-case scenario had been produced in a simulation modeling the mobilization of fire trucks. Fire trucks had an accessable moving towards the biggest hotspot when victim evacuation had been performed well.

Garuda Indonesia Experience: A New Concept of Airline Service

M. Mujiya Ulkhaq, Deshtyan Erlangga Adi, Jessika Ulina, Excel Verlieson Wijaya — Fri, 19 Aug 2022 00:00:00 +0700

Projected economic and job growth are expected to be dominated by services through the 21st century. Parallel to these, the globalization of services and fast technological development, afforded by information and communication technology, are increasing the pressures for service firms to compete on new offerings and innovation. The innovation has a vital role so that the firm would not be suppressed by its competitors. Garuda Indonesia as a leading actor in the aviation sector in Indonesia also did innovation. It has developed a new concept of service namely Garuda Indonesia Experience (GIE). This GIE engaged the passengers’ five senses, i.e., sight, sound, scent, taste, and touch that includes 28 customer touch points, from pre-journey, e-flight, in-flight, post flight to post journey services. This paper is introduced and described the concept of the GIE. In the end of this paper, the future research direction is presented which is the performance evaluation of Garuda Indonesia’s service according to GIE’s elements.

Mathematical Analysis of Earth Air Heat Exchanger (EAHE) for Storage system

Niraj R. Shingala, Chetankumar M. Patel — Fri, 19 Aug 2022 00:00:00 +0700

The temperature of earth at below ground level around 2 to 5m, is almost remain constant through out of year. This temperature called as Earth Undisturbed temperature EUT. This EUT is higher than atmospherics temperature in winter season. While in reverse condition can find in summer season. In summer season, EUT is always lower than atmospherics outside temperature. The heat exchange is set up at below ground approximately 2 to 5m. The heat exchanger is device exchange heat and gives satisfied utilization of EUT. In summer, the ambient is air pass through this below ground heat exchanger and provide cooling effect to any domestic and industrial building with the help of EUT. While opposite in Winter season the ambient is air pass through this below ground heat exchanger and provide cooling effect to any domestic and industrial building with the help of EUT. In both seasons like in summer and winter; heat exchanger gives efficient result of cooling and heating result respectively. It was found that our aim of designing made us to face designing and analyzing of it by implanting various types of basic fundamentals related to the concepts of Heat Exchanger.

Inventory Control of Raw Material of Sawdust for The Production of Wood Pellets with Supply Chain Management Approach at PT Multi Energi Biomassa

Imron Bondan Sadewa, Emmy Nurhayati, Kusmendar — Fri, 19 Aug 2022 00:00:00 +0700

PT Multi Energi Biomassa is a company engaged in the production of renewable energy that located in Wonosobo, the product is wood pellet. The problem that occurs in company is the availability of raw materials of sawdust is always left a lot after production, this lead to accumulation of raw materials and increasing the cost of storage. This research is aims to control the inventory of raw materials so that there is no accumulation of raw materials so that total inventory cost can be reduced to a minimum. This research uses Supply Chain Management approach. The results of this research showed that bullwhip effect after forecasting of demand using exponential smoothing method with α = 0.95 decreased from 1.127 to 1, where the value of bullwhip effect parameters 1,028. The optimal number of orders (EOQ) increased by 3.16% from 3,417 kg to 3,512 kg, but the frequency of request decreased from 300 times to 272 times. Total inventory costs without and with supply chain coordination decreased by 7.19% from Rp. 98,225,880 to Rp. 91,191,555. Inventory cost savings per period before and after coordination of supply chain is Rp. 7,064,325.

Reverse Logistics for Medical Waste During the Covid-19 Pandemic: A Literature Review

Yasmin Mauliddina — Fri, 19 Aug 2022 00:00:00 +0700

The Covid-19 pandemic impacted globally, mainly in healthcare aspects. The pandemic raised the call for medical service, medical equipment, and personal protective equipment (PPE). The World Health Organization (WHO) recommended people wear PPE during the pandemic. Nations also performed tremendous testing for Covid-19. In two years, The United Nations of Children, Education, and Fund (UNICEF) has shipped hundreds of millions of items of PPE worldwide. This initiative resulted in more than 100,000 tons of medical waste. However, less than half the of medical facilities worldwide are unprepared to handle the medical waste. The mishandled of medical waste might increase the infectious equipment pollution, jeopardize the environment, and elevate disease spreading. This paper provides the literature review with respect to the role of reverse logistics for medical waste during the pandemic. The reverse logistics decisions and policy for medical disposal are generally focused on minimizing the risk, reducing the budget and costs, optimizing the routes and facilities, and maximizing the collected waste. Among the insights, the results suggest that several considerations need to be heeded related to the local capacity. The role of local government, researchers, and policymaker affect the management of medical waste removal during the pandemic.

Warehouse Relayout Analysis Using Flow Process Chart and Dedicated Storage in CV Master Multi Jaya

Valentino Ibanez, Agus Hindarto Wibowo — Fri, 19 Aug 2022 00:00:00 +0700

Based on the observations in CV. Master Multi Jaya, the placement of materials is still not organized or still not neat, so that cause an ineffectiveness of work in the process of materials handling. The problems that exist in CV. Master Multi Jaya is currently an irregular arrangement of materials. This is an obstacle to placing and sending materials. This research aims to gather information of the warehouse activity to be a flow process chart. That is become basic theory of creating re-layout the effective arrangement of materials. Dedicated storage is one of methods can be formulated to re-layout their warehouse to be better layout than before. Data retrieval is carried out using a chart called operation process chart, its function is to submit the time record of the operation. Then it convert to be a flow process chart which is use as consideration of dedicated stoage. The dedicated storage calculate the throughput warehouse capacity with the quantity of material storage tools based on each products. Then, author must be record the time of material handling and sum it up on the excel as the table of input materials time. But this object research just focus on warehouse arrangement which is through by the material handling. Then, the transportation tool is just wear two trolleys. The result of this research is new layout of warehouse or a good workstation of CV. Master Multi Jaya

Usefulness Assessment of Powder Seasoning Packing Machine Based on the Overall Effectiveness Equipment Approach

Nina Aini Mahbubah , Abdul Muid , Indra Rizaldi — Fri, 19 Aug 2022 00:00:00 +0700

Machine and equipment is the main factor that supports the smooth running of activity in a manufacturing company. PT ZA is a large-scale instant noodle producer in Indonesia. The quality division has implemented periodic maintenance management. However, the packing machine shutdown has resulted in a delay in meeting the production target for the seasoning powder packaging. This problem results in a delay in the work in process. This study aims to evaluate the effectiveness of the seasoning powder packing machine using the Overall Effectiveness Equipment (OEE) approach. The research object is the FPD 93 packing machine and production data from the Quality Division. The results of this study show that the OEE score of the packing machine is 67 %. The effectiveness of the packing machine is lower than the world standard OEE value of 85 %. Availability and performance factors are two factors that result in low OEE values. Furthermore, the two factors must be improved so that OEE values meet world-class standards

Natural Ester Oil a Sustainable Alternative Insulation Oil to Mineral Oil for Power Transformer Industries and Electric Power System

Amit Kumar — Fri, 19 Aug 2022 00:00:00 +0700

Natural ester oil is an important concern for power transformer industries, commercial and electric power system to explore sustainable technology. It is most suitable alternative to mineral oil for insulation and coolant medium for electric power transformer to operate efficient. Mineral oil is paraffin and naphtha based insulating oil derived from petroleum crude oil by fractional distillation method and have been banned due to polychlorinated biphenyls (PCBs). The disadvantage was its toxic nature and the lack of biodegradability while the natural ester oil is renewable energy source, easily available and eco-friendly in nature, derived from plant, animal fats, crops, fruits and their seeds, such as soybean oil, olive oil, mustard oil, sunflower oil, palm oil, coconut oil, cottonseed oil and canola oil etc. PCBs are harmful for human tissue, many species of birds and fishes, persistent biodegradability in soil and water. This paper explores the physical, chemical and electric properties to find better natural ester oil source instead of mineral oil. The purpose of utilization natural ester oil is to save the environment from toxic, dioxin, hazards and fire. Natural ester oil is deliberated to be one of the feasible substitute for mineral oil and silicone oil due to non-toxic, not produce any dioxin and toxic hazards in environment, low explosion risk, high flash, less flammable, low sludge in transformer tank, less time take to biodegradable processing, high value of pour point, good dielectric strength breakdown voltage, long paper aging life indicates better insulation oil medium for transformer.

Identification of Export-Import Activities for MSMEs in Yogyakarta Through the Airport Using the House of Risk

Dita Trianingrum, Atik Febriani — Fri, 19 Aug 2022 00:00:00 +0700

One of the divisions contained in PT. Angkasa Pura I (Persero) Yogyakarta International Airport (YIA), namely the Airport Commercial division. The main task of this division are of preparing development and carrying out commercial activities which include data collection and production, calculation and billing for aeronautical services and non-aviation services as well as other businesses that has airport-business relations and one of its duties is to manage procedures related to export-import activities through the cargo terminal located at YIA. In this study, a survey was conducted on MSME actors in Yogyakarta and several YIA airport staff regarding the risks that might occur in developing the export-import potential of MSMEs in the Special Region of Yogyakarta through the airport. The results showed that the causes of the risks found were the lack of assistance in filling out administrative files, the lack of information related to the procedures for carrying out exports through airports and the relatively expensive cost of air transportation. Based on these results, mitigation measures were formulated to reduce these risks, among others by increasing cooperation between the SME and DIY Cooperatives Office and the Yogyakarta Industry Office, especially in conducting socialization related to procedures for implementing exports through airports.

Scheduling Time and Project Costs Using the Critical Path Method (CPM) And the Evolution and Review Technique (PERT) Program on The Dust Collector Machine at Pt. The Glorious Element of Suryamasinka (Elgisa)

Eka Putra Pebrianto, Elly Wuryaningtyas Yunitasari, Dyah Ari Susanti — Fri, 19 Aug 2022 00:00:00 +0700

Scheduling is one of the meters that is a benchmark for the success of a project in addition to cost and quality. Project planning consists of scheduling, controlling, and executing. PT. ELGISA Accepts orders and installation of dust collector and ducting machines. PT. ELGISA in project management is still poorly structured in arranging the stages of a project activity. So there is a need for a scheduling improvement system with project management using the Critical Path Method (CPM) and Program Evalution and Technique (PERT) methods. The purpose of this study was to plan the scheduling time and project costs so that they do not exceed the time that has been set. The calculation results use the CPM method, which is for 53 days while using the PERT method, which is 54 days with a normal time of 75 days. In the CPM and PERT methods, they have a critical line network, the installation of dust collector and ducting machines is the same, namely A-AF-AG-AH-AI-AJ-AK-AL-AM-AN-AO-AP, AQ-AR-AS-AT-DC on the CPM method, the cost on the critical line is Rp. 107,300,000,- while in the PERT method the cost on the critical line is Rp. 108,915,000,-. The influencing factors are human resources (HR), material and implementation

Effectiveness Analysis of Pelletizer Machine Using Overall Resource Effectiveness (ORE) And Failure Mode and Effects Analysis (FMEA) Methods at PT Multi Energi Biomassa

Maria Nona Erlin, Agustinus Eko Susetyo, Syamsul Ma’arif — Fri, 19 Aug 2022 00:00:00 +0700

PT MEB is a manufacturing company engaged in producing and marketing renewable energy. The product is called wood pellets. The problem that often occurs at PT MEB is that the production target has not been achieved according to the target set by the company. One of the causes is that there are frequent disturbances in the performance of the pelletizer machine. The pelletizer machine is a wood pellet printing machine. Damage to the pelletizer machine can cause the production process to be disrupted, thereby reducing the amount of output produced. This study aims to analyze the causes of the decreased effectiveness of the pelletizer machine so that it can give improvement solutions to increase its effectiveness. This research uses Overall Equipment Effectiveness (OEE), Overall Resource Effectiveness (ORE), and Failure Mode and Effect Analysis (FMEA) methods. The results showed that the OEE and ORE values of the pelletizer machine from May 2020 to August 2021 were obtained on average at 25.93% and 19.63%, where these results were below the world-class standard (≥85%). From the results of the calculation of the six significant losses, the dominant factors that affect the effectiveness of the machine are reduced speed losses by 64%, breakdown losses by 19%, and idling and minor stoppage losses by 10%. Based on these results, an FMEA analysis was carried out and found that the RPN results for reduced speed losses and breakdown losses were 384, while the RPN value for idling and minor stoppage losses was 392. The corrective action that needs to be done is to carry out routine inspections of the engine and replace engine parts that are not working correctly.

Lean Manufacturing Approach to Minimize Waste Production Using Value Stream Mapping

Emmy Nurhayati — Fri, 19 Aug 2022 00:00:00 +0700

In the manufacture of gloves can not be separated from the wastes that occur in production activities. Activities that do not provide added value can result in losses for the company due to the ineffective and efficient use of resources continuously during the production process. In optimizing the production system, manufacturing companies use a Lean Manufacturing approach to maintain and improve the quality of their products. The concept of Lean Manufacturing can reduce lead time and increase output by eliminating activities that do not provide added value that occur in the company's production system. The method used is Value Stream Mapping (VSM) to identify waste in the glove production process in the company that can minimize waste on the production floor and provide recommendations for corrective actions to make the process more efficient. The results of the waste that occur are defect waste, waiting waste, unnecessary motion waste and transportation waste and a reduced lead time of 103,44 minutes and a decrease in cycle time of 0,82 minutes.

Student Portfolios Rescoring in an Indonesian Private University Based on a Fuzzy MCDM

V. Reza Bayu Kurniawan, Fransiska Hernina Puspitasari — Fri, 19 Aug 2022 00:00:00 +0700

Due to today’s globalized era, there is a strong need to prepare skilled and competent future generations. This, of course, will involve the contribution from many parties including authorities and universities. In Indonesia, the ministry of education, culture, research, and technology has released a document to recognize student’s achievement as well as graduates’ competencies. This document will not only describe the academics history from the students, but also encourage Indonesian universities to take part in increasing young generations achievements through various academic programs. Although all universities have implemented the policy with different approaches, there has been a concern in scoring system once recognizing the activities achieved by students. In particular, the issue of unfair weight determined in the scoring system may be appeared. Therefore, this study addresses this issue by employing an MCDM approaches to improve the scoring system of student’s portfolio document. A case study in a private university situated in Indonesia is selected to apply the model. This study focuses on criteria within the most preferred category determined by the DMs in the university. The result indicated that there were 11 criteria screened based on the effort and impact variables. These criteria belong to high impact – low effort category. Then, these 11 criteria were weighted using the fuzzy AHP. The obtained weighted can be adopted by the DMs to improve more relevant and accountable student’s portfolio scoring system. However, a follow-up study should be carried out by taking into account the whole criteria in all categories

Green Supply Chain Management in Research Trend: Bibliometric Analysis Study

Fri, 19 Aug 2022 00:00:00 +0700

Impact on the environment has become an essential obligation for every company, both in products and services. Inter-supply chain management has transformed in responding to the need to pay attention to environmental impacts into environmental management in line with sustainable development goals (SDGs) called green supply chain management (Green SCM). Green SCM has been widely applied to large industries, but it is still a new thing for small and medium industries and lacks information about the concept and its application. This study explores the published Green SCM indexed in the Scopus database. We conducted a bibliometric analysis of 1,776 Scopus indexed documents from the first year of 1996 to determine the progress of GSCM research. Research trends and keywords that are still relevant and emerging have been explored and explained. Research gaps that require follow-up have been identified, and future research directions have also been discussed.

Reduction of Bottleneck in the Jacket Production Process in the Sewing Department using Line Balancing Method

Silvia Sri Oktarini, Ismianti — Mon, 22 Aug 2022 00:00:00 +0700

Line Balancing is an assignment of several jobs to the production line or related work stations within the line to minimize idle time. PT ABC is a company engaged in the garment industry that produces products such as Pants, Board shorts, Men-shirts, Ladies wear, T-shirts, Polo shirts and Jackets. The production system used by PT ABC is Make to Order. The company will produce according to the buyer's request. Samples that have been approved will soon be mass-produced. Every day the company produces different products in each line with different targets. Production targets are often not achieved and bottlenecks occur at several work stations, such as in line 2 which produces products in the form of jackets with X style. Therefore, a research was conducted on that line. This study aims to determine the amount of idle time, efficiency, and delay time before and after repairs to determine the optimal work station in the production process of the sewing line 2 department to minimize the occurrence of bottlenecks. This research was conducted using the Regional Approach method. The results of this study resulted in a balanced track design with the number of work stations needed as many as 37 units with an idle time of 5,871.2 seconds, a balance delay of 50.8%, a track efficiency of 49.19% and a smoothness index of 76.59 and an increase in track efficiency which was originally 40.44% to 49.19%.