bluuebunny/crossref_metadata_2025_split huggingface dataset:
Physical Changes of Occupancy and Spatial of Bajo Tribe Settlement in Jayabakti Village, Pagimana District
Authors: Burhanuddin  , Amar  , Mashuri  
Published: May 2023

Abstract
The Bajo tribe are traditional fishermen whose lives are completely dependent on the sea, they are often referred to as sea nomads or “sea people”. The Bajo Tribe’s house has a characteristic that is located above sea water and all of them have a regular pattern lined up behind perpendicular to the beach. The condition of the settlements of the Bajo tribe in Jayabakti Village is slowly starting to leave the tradition of living on sea water, they have started to build their houses, some are on land and some are above water, and have even built on land. This study aims to examine the physical and spatial changes of housing and identify the factors that influence it. The research method used is inductive-qualitative with a phenomenological approach. The samples taken are 3 (three) houses, each representing a house on land, in land and sea transitions, and a house completely on the water. The results of the study show changes in houses with an increase in area due to an increase in the number of heads of families and an increase in business to increase household income, Changes in the influence of the development of communication tool technology (internet network) which can see materials for housing that can respond to natural conditions, as well as changes caused by relationships social interaction with local communities with the concept of “Bela” (older brother).
A Pattern of Public Open Space Utilization in Tondo I Permanent Resettlement Residential Area (HUNTAP) as Evacuation Space
Authors: Setiawan A , Mardin R , Lutfi  , Baleya F F 
Published: May 2023

Abstract
Learning from the disaster in Palu on September 28, 2018, disaster management in residential areas needs to be facilitated, such as a disaster evacuation or gathering point. This study tries to see the other side of the function of public space as an evacuation shelter in a settlement, with the study case of Huntap I Tondo. This study aims to formulate a pattern of public open space as an evacuation space in Permanent Residential (Huntap) I Tondo. The method is descriptive with field observation of data collection techniques and questionnaires. The stages of the research are 1) conducting spatial analysis to map the location of public open spaces and 2) using the behavioral mapping method and describing it to reveal the spatial pattern created from the reciprocal relationship between humans and space. 3) Distributing questionnaires to determine perceptions and preferences of public open spaces as evacuation spaces. The results obtained the pattern and factors of public open space as an evacuation space in the Huntap I Tondo area are influenced by, (1) the physical aspect of the availability of the nearest public space in the form of environmental roads and open spaces in residential areas. (2) Non-physical aspects include survivors’ and refugees’ social interactions.
Experimental Study of Structural Behavior of Banua Tadulako’s House for Earthquake Survivor of Palu
Authors: Listiawaty H , Hilmansyah T , Basri H 
Published: May 2023

Abstract
Huntap (Permanent dwelling) is a building intended for people whose houses are affected by disasters. The main requirement is that the building be proven to survive if an earthquake occurs around the Permanent dwelling located in the future.
This research begins with the completion of the architectural drawing of the Banua Tadulako’s House (Rumbako) according to input from the Spatial Planning and Settlement Service of Palu City and the Directorate of Housing and Settlement Engineering Development of the Ministry of PUPR. The next process is the preparation of materials and equipment. Structural analysis using SAP 2000 software.
Based on the analysis and simulation results, the following results are obtained: The stresses that occur on the surface of the wall do not exceed the allowable stress of the brick wall infill material, The cross-sectional capacity of the reinforcing steel is quite safe against the combination of loading applied to the structure. The basic seismic shear force of the structure capacity from the pushover analysis is 226 kN. More than the design earthquake force of 121 kN. Minimum connection details and truss structural elements have been calculated and qualify the requirements for strength and stress ratio.
Feasibility Study of Palu Bridge III Structure
Authors: Amir Fatmawati , Maricar Shyama , Mallisa Zet 
Published: May 2023

Abstract
The Palu Earthquake on September 28th, 2018, which was followed by a tsunami and liquefaction, caused massive damage to infrastructure in Palu City and its surroundings, include The Palu III Bridge as an Australian steel truss structure with a span of 2 x 60 m. The need for an evaluation of the post-earthquake bridge structure can be done by Rapid Visual Screening (RVS) method to detect the transverse and longitudinal direction of the bridge, cracks in the concrete structure, failure to steel truss joints, displacement of expansion joints, etc. The degradation of the Palu III Bridge was seen in the expansion joint, massive rust spots in the transverse and longitudinal girders of the bridge, in the area near the east support, the asphalt layer apart, slope of concrete pile foundation and supported rail deflected. The Rapid Visual Screening results of the Palu III Bridge structure can be conclude as follow, the overall condition of the bridge is still in moderate condition, several parts of the bridge should be maintaining and rehabilitating, the bridge pier and abutment area should be cleaned due to a lot of garbage. In general, Palu III Bridge able to function as initial condition.
Study of Liquefaction Potential Using Cone Penetration Test at Balaroa Village Palu
Authors: Azhari Jeehan , Vilda  , Oktaviana Ida Sri , Irdhiani  
Published: May 2023

Abstract
Central Sulawesi Province is one of the areas in Indonesia that is prone to large earthquakes. Balaroa, Petobo, and Sibalaya were among the most fatalities and damaged facilities and infrastructure due to the earthquake on September 28th 2018. Around Balaroa Village, besides the huge damages to Perumnas Housing, the area around the housing was also affected, for example on Jamur, Kelor, and Labu streets, many houses and buildings were damaged. This research aims to assess the potential of the ground in this area to liquefy. Cone Penetration Test (CPT) were conducted at 3 points around Kelor street, and 3 points at Labu street, then the results was used to calculate the Factor of Safety (FS) and Liquefaction Potential Index (LPI). The results indicated that the FS values at each point of the sites obtained on average have an FS value less than 1 which indicates that the area is vulnerable to liquefaction. The results of the analysis of the liquefaction potential index (LPI) value show a range varied from low to high.
Hypocenter Relocation of Local Earthquake using Double Difference Method in Central Sulawesi from BMKG Network Data: Time Periods of July 26 - August 18, 2021
Authors: Jayadi H , Janat N R , Santosa B J , Warnana D D , Nugraha A D , Leopatty H , Asyhar I F , Meidji I U , Fitriana T , Ninasafitri  
Published: May 2023

Abstract
Last July 2021, a destructive earthquake occurred in the northern Ampana area, Central Sulawesi, with the epicenter at sea. We investigated the earthquake and found 101 hypocenter points with a magnitude of 2-6 Mw from 26 July to 18 August 2021 using the BMKG network. Of the 101 earthquakes, we relocated the hypocenter using the multiple difference method and obtained 75 earthquake events resulting from the relocation. The results obtained from the relocation are that several earthquake events with a fixed depth of 10 km have been updated. To validate the results, we used a histogram of travel time results, which depict the relocation results as good, and some close to zero. The results of the hypocenter relocation have a depth of 5 to 30 km and are collected in one location. The shift’s direction and angle from the relocation results show that most of them are in a dominant direction to the north. It is interpreted that the earthquake was caused by force activity caused by the Balantak thrust, which is in the east and has a north direction towards the study site.
Palu II Bridge Traffic Performance
Authors: Labaso Eko Rahmat , Pratama Julian Ilyas 
Published: May 2023

Abstract
Activities encourage people to make movements to meet their needs. Palu II Bridge has an important role to connect two areas in Palu City. Data collection for this study was carried out by surveying traffic volume, side barriers and vehicle speed in the field. The study was conducted for 2 days, on Mondays and Sundays as samples of working days and working holidays starting at 06:30 – 08:30, 11:00 – 13:00 and 17:00 – 19:00. Data The number of vehicles that have been obtained is converted into units of smp/hour. Determination of the class of side barriers and vehicle speed based on survey data that has been obtained. Calculating the capacity according to MKJI (1997) for urban roads based on the data obtained. Based on the results of data analysis, the value of the traffic volume on the Palu II Bridge is 1805 pcu/hour and the capacity value is 2330 pcu/hour. While the value of the degree of saturation is at a value of 0.775 with the level of service in category D. The factors that greatly affect the capacity of the road are the volume of vehicles, environmental conditions found on the road, vehicle speed, direction separator and side barriers.
Analysis of the Effect of Dimensional Variation and Number of Air Inlets on the Efficiency of Gasification Stoves using Computational Fluid Dynamic (CFD) Simulation
Authors: Rezki Rachmad , Suwandi  , Utami Amaliyah Rohsari Indah 
Published: May 2023

Abstract
Nowadays, the consumption of non-renewable energy is high. As a result, the availability of this energy is decreasing. Because of this, other energy alternatives are needed. One example of another option is the use of biomass. An example of using biomass is the gasification process. This process was carried out in a device called a gasification stove, namely a gasifier. A gasifier has been developed to produce an optimal combustion system. The constraints in this development are costs for manufacture and the potential for failure. Therefore, simulations using Ansys Computational Fluid Dynamics (CFD) software student versions were carried out to reduce the costs for manufacture and the potential for failure of the gasifier. The simulation contains dimensional variations and the number of air inlets of gasifier of downdraft gasifier, updraft gasifier, and entrained flow gasifier. Further, the influence of the dimensions and quantity of inlet that affect each design’s efficiency and the temperature was examined. The simulation results show that the best dimensions for the downdraft gasifier, updraft gasifier, and entrained flow gasifier are height and diameter of 50cm; 14.5cm (A1), 144cm; 70cm (C1), and 900cm; 300cm (B3), respectively. The best number of air inlets of A1, C1, and B3 gasifiers is 6, 1, and 6, respectively. Thus, the efficiency of each gasifier A1, C1, and B3 are 11.393%, 9.354%, and 50.885%, respectively. Furthermore, the A1, C1, and B3 gasifiers temperatures were 1055.25 K, 1383.44 K, and 3580.15 K, respectively. Therefore, this study suggested that the gasifier development could be optimized using simulation to reduce manufacturing costs and failures.
The theoretical approach of how to predict the critical rotational speed of the rotating nozzle in flashing purification to increase the evaporation rate
Authors: Sonawan Hery , Halim Abdurrachim , Tandian Nathanael P. 
Published: May 2023

Abstract
We developed a new flashing method in this study to improve the evaporation rate in flashing purification. In this case, a stationary nozzle is replaced by a rotating nozzle during the flashing process. The use of a rotating nozzle may distribute water droplets in previously unreachable spaces; the more droplets, the greater the evaporation rate. The use of a rotating nozzle during flashing causes problems if the rotational speed causes the water droplets to collide. To avoid a collision, a rotating nozzle must rotate at an appropriate rate. The kinematics of drifting water droplets after being sprayed by a rotating nozzle can be used to calculate this speed. It could be calculated by periodically observing droplet movement to determine the critical rotational speed of a rotating nozzle. By studying the trajectories of water droplet movement after being sprayed by a rotating nozzle, we can obtain no droplet collision circumstances. Water droplet evaporation during drifting reduces droplet size, resulting in a lower nozzle rotational speed to avoid a collision. For a water particle diameter of 153.5 µm, the smallest nozzle rotational speed predicted is 85.4 rpm. A droplet with a diameter of 80 µm produces 82 rpm of nozzle rotational speed, while a droplet with a diameter of 40 µm produces 80 rpm of nozzle rotational speed. Evaporation may reduce the size of the water droplets during the flashing process. To avoid droplet collision and increase evaporation rate, finer water droplets require a lower nozzle rotational speed.
Study of Solar Power Plant Efficiency in Remote Village Using HOMER Software: Case Study Kasoloang Bambaira Village, West Sulawesi
Authors: Fatmawati A , Sholihah R M , Syam F , Purnama S , Rahman Y A 
Published: May 2023

Abstract
The electrification ratio of West Sulawesi Province according to electricity statistics in 2020 is 99.72%. 74,342 households do not have PLN electricity, one of which is in Kasoloang Village, Durian Guni Hamlet, Bambaira District, Pasangkayu Regency. So far, they can only enjoy electricity for five hours at night. they use a Generator set. Fueled by gasoline or diesel. On the one hand, the potential for solar radiation in the West Sulawesi region is quite potential to develop solar cell energy (SCE). This study aims to examine the efficiency of SCE in Kasoloang Village using the HOMER application. the next stage is the design of the generator to determine energy requirements and the calculation of the capacity of components (such as solar panels, solar controllers, batteries, and other features). The results showed that the efficiency value of using SCE was higher than that of the generator.
Harvesting of Photon Energy through PV on Building Envelope and Windows Canopy
Authors: Mustofa  , Krisnawan Sang Putu , Hatib Rustan , Iskandar  , Asmeati  , Hariyanto  
Published: May 2023

Abstract
It often does not occur to us that there is a space or point in the construction of a house or residence that has the potential to develop new and renewable energy sources (EBT) that produce additional electrical energy. The position of the window canopies and building walls has the potential to place solar panels (PV) according to the canopy design without requiring additional installation costs. This position is known as passive energy. The advantage is that it is easier to maintain compared to PV panels installed on the roof of the house. Although this position is not optimal to get sunlight, at least there will be photon energy captured by placing PV in the path of the sun’s shadow. This means that the solar thermal value that PV does not like will decrease, while what is needed for PV semiconductors is photon light. Therefore, this study aims to increase profits in terms of construction management of exterior walls and building canopies, especially window roofs. The observation results show that The position of placing the PV panels in one direction of the sun’s shadow, which is on the west side of the building gives better advantages to PV on the building envelope compare with window canopy. The PV output power generated on the building envelope is about 6 Watt, while the window canopies are only around 4 Watt. Need further investigation on different site of the building.
Monitoring PV Output Power in Tropical Climates Under Surface Temperature Distribution Area
Authors: Rahman Y A , Amin N , Masarrang M , Pirade Y , Yunfa N P , Santoso R 
Published: May 2023

AbstractThe performance parameters of a solar panel are influenced by many factors, including the type of panel, area, solar radiation, ambient temperature, and weather. This study aims to analyse the effect of solar radiation and temperature on the performance of monocrystalline solar panels. This research was located in Palu, one of the cities with high temperatures in tropical Indonesia. The study used 50 Wp PV, which was placed in the eastern Palu area based on the spatial distribution of surface temperature with the highest temperature distribution. Data sampling is 25 times per day from 11:00 am – 03:00 pm. The result is that increased surface temperature of the solar panel impacts the decrease in the output power of the PV. The environmental temperature of 32.87 °C in the East Palu area causes a decrease of PV power by 2.3%.
Decision Support System Determining Priority for Road Improvements to Support Sustainable Road Construction
Authors: Hendra S , Ngemba H R , Laila R , Sadik J , Indrajaya M A , Alamsyah  , Hidayah A , Rahmawati S 
Published: May 2023

Abstract
Sustainable transportation is a reflection of the concept of sustainable development in the transportation sector. Sustainable roads protect and augment natural resources and the processes involved. The Department of Public Works, Spatial Planning and Land (PUPRP) of Parigi Moutong Regency is the part responsible for maintaining and repairing roads in Parigi Moutong Regency. The limited budget and the number of roads being managed make the process of determining the priority of road repairs not right on target. This study aims to assist the government in determining road improvement priorities. Therefore, a web-based decision support system for determining road repair priorities was developed. This system was developed using the Weighted Aggregated Sum Product Assessment (WASPAS) method. The results of this study are applications that can help make decisions in determining road repair priorities using the WASPAS method. The results of testing the application using Black Box testing result that all system functions run well and in accordance with the initial design. Furthermore, testing the application using the Delone and McLean Model, the results are very good.
Pertamina Gas Product Information System To Support Green Distribution And Sustainable Logistics Based On Android
Authors: Ngemba Hajra Rasmita , Hendra Syaiful , Azhar Ryfial , Reza Feishall , Masse Fitriyanti Andi , Lakatjinda Adiatma , Sahril  
Published: May 2023

Abstract
Green distribution can be interpreted as an effort to change distribution methods by considering the impact of distribution on the environment. As a company that handles distribution in urban areas, PT. Kalco Patra Energi often encounters several problems in the distribution process, including frequent overstock or excess inventory and stockouts or inventory shortages caused by the distribution activities of Bright Gas products that have not been planned properly. This study aims to assist companies in dealing with frequent distribution problems and how create systems to support Green Distribution and Sustainable Logistics. This research uses DRP (Distribution Requirement Planning) method with an Extreme Programing system development model. Testing using MAPE (Mean Absolute Percentage Error). The results of this study proved that the DRP method could be implemented using previous Pertamina Gas product orders to determine distribution planning in the future. Based on the results of testing the software functionality, the system is running well. Forecasting accuracy testing using the MAPE method produces very good test criteria. Based on the results of testing, user satisfaction with the system shows that user ratings can be categorized as very high.
Medical Assistant Robot With Patient Trajectory Reading Based on Odometry using Photovoltaic source
Authors: Fauzi Rizana , Mustari Aidinal , Lutfiyana  
Published: May 2023

Abstract
Robotics technology is growing and being applied in various fields such as education, industry, household, and health. In the world of health, mobile robots are one of the robotics technologies that can provide solutions to overcome the problem of treatment carried out on patients infected with infectious diseases. With the medical assistant robot, treatment efforts can be carried out by not making direct contact with patients and nurses so that the risk of nurses contracting the disease can be reduced. Mobile robot is one type of robot that can move in all directions. Autonomous mobile robot is a type of robot that is able to move to a destination automatically. By utilizing this robot in health services, it can help several tasks of medical personnel, such as monitoring patients, as a delivery person for medicines, food, and goods. For the implementation of this autonomous mobile robot, a good navigation system and control system algorithm is needed. In this study, the principle of odometry will be implemented in tracking path on a medical assistant robot. In the experiment of adjusting the position of the robot’s motion, it can be seen that the robot can move according to the expected position by adding a PID control to correct the error value in the position of the robot.
Feasibility Of Mangrove Program Implementation as Tsunami Disaster Mitigation In Layana Indah Village, Palu. Central Sulawesi
Authors: Awalia Rezki , Purwaningrum Nurlaila Arumdhani 
Published: May 2023

Abstract
The earthquake that occurred on September 28, 2018 with an earthquake strength of 7.4 at a depth of 10 Km, triggered a tsunami along the coast of Palu city. This condition resulted in several affected areas, one of which Layana Indah Village which is estimated to cause damage and losses after the disaster amounting to 12.6 billion rupiah. This is due to the lack of maximum protection in coastal areas as a coastal barrier as well as the preservation of vegetation on the coast. The purpose of this study was to analyze the feasibility of implementing a mangrove program as a tsunami mitigation measure in Layana Indah Village. The research method used is qualitative by using secondary data, observation and interviews. The analysis technique uses economic valuation analysis with cost mitigation method. The results of this study indicate that the application of structural tsunami mitigation efforts by planting Rhizophora apiculata species is declared feasible because it has a value of 1.5 which means the value of activity >1 based on the results of economic valuation analysis and CBR (cost benefit Ratio).