bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electric wheelchair with forward-reverse control using electromyography (EMG) control of arm muscle
Authors: Rakasena E P G , Herdiman L 
Published: March 2020

Abstract
Muscle dystrophy can occur in the body’s organs of human movements such as the legs, thighs, upper arms, palms and fingers of humans so that the sufferer cannot use limbs. Electric wheelchair is not effective for people with muscle dystrophy disabilities, because users have limitations such as defect of the hands. Given these circumstances, this research proposes an electric wheelchair with controlled by electromyography (EMG) which is placed on the arm muscles. This Electric wheelchair use 2-channel electrodes for sampling muscle signal. This research was conducted in Balai Besar Rehabilitasi Sosial Penyandang Disabilitas Fisik (BBRSPDF) Surakarta, Indonesia. The results of the first grip strength testing are less than 35.8 kgf that indicates weakness of the hand grip. The same thing in the second treatment is a weakness in the handle because of n less than 35.8 kgf. The result of robustness test, spherical movement is not robust with a value 0.756 and. 0.000. The result of cylindrical movement is fully robust with a value 0.001 and 0.000. The result of lateral movement is fully robust with a value 0.000 and 0.000. The result of tip movement is fully robust with a value 0.000 and 0.029. The result of hook movement is not robust with a value 0.109 and 0.000.
The effect of two-step solution heat treatment on the impact properties of Hadfield austenitic manganese steel
Authors: Bandanadjaja B , Hidayat E 
Published: March 2020

Abstract
Hadfield austenitic manganese steel is made of iron with 1.0–1.4 percentage Carbon and 10–14 percentage Manganese. Hadfield steel was processed to solution heat treatment to eliminate the carbide (Fe, Mn)3C. This study aims to make a smaller grain size of Hadfield steel at once with solution heat treatment. It was expected to improve toughness of Hadfield steel. Solution heat treatment was carried out in stages by implementing pre-isothermal heating at a lower temperature with two variations at 600 degree C and 700 degree C before undergoing high austenitization heating. Pre-isothermal heat at above 450 degree C was promoting pearlite growth. Pearlite growth starting from austenite grain boundary then reformed new grain, which has a smaller size than prior austenite. Second, stage of austenitization heating then was performed at 980 degree C to transform new small grain pearlite to austenite. An agitated water quench was used to ensure a faster cooling rate to achieve 100 percentage austenite structure. Results demonstrate that sample that underwent a stepped heat treatment process at 600 degree C followed by austenitization at 980 degree C produced finer (smaller) austenite grains. That sample had the highest impact value of 329.1 J/Cm2 in comparison to other specimens.
Structural analysis of single girder overhead crane using SS400 and ST52-3 steel plate
Authors: Asmara I P S , Hamzah F , Susanti L F 
Published: March 2020

Abstract
This paper is aimed to review the structure of single girder overhead crane using finite element analysis (FEA) technique. The strength and stiffness of existing single girder overhead crane with the capacity of 10 tons SWL and a span of 14 meters are calculated. The existing structure using SS400 steel plates is evaluated and compared with a new design using ST52-3. The stress and deformation of the existing structure are analyzed using Ansys software and a new design is proposed. Further, the effect of girder weight reduction to the decreasing of power required by the long-traveling motor is identified. The analysis shows the reduction of structure mass on the new design is 0.8 tons and the decrease in required traveling power is 1 kW. The maximum stresses of the existing and the new structure are 25 percent and 23 percent of the yield strength of the SS400 and ST52-3. The percentages of the maximum deformation to the allowable deflection limit are 43 percent and 58 percent, respectively.
Wind turbine simulator using wind speed dataset on microgrid system
Authors: Tjahjono A , Anggriawan D O , Meydisari S D 
Published: March 2020

Abstract
Currently the wind power plant simulation system has been developed by various methods as an effort to optimize energy derived from wind power. This paper proposes a wind power simulator using wind speed datasets to produce electrical energy. The wind turbine simulator consists of a generator driven by an induction motor where the speed of the induction motor is controlled using a variable speed drive. To generate electrical energy based on the dataset used a PC that is connected to a variable speed drive through modbus communication assisted by a computer programming language as the user interface. Furthermore, the output from the wind power simulator is connected to the grid tie inverter to be integrated in the microgrid system. The performance test results of the simulator show that the characteristics of the wind power simulator are in accordance with the characteristics of the actual wind power plant and the power generated by the wind power simulator is 50.6 watts, equivalent to wind speeds of 5.1 m/s.
Application of user-defined unilluminated PV simulator on a microgrid
Authors: Tjahjono A , Ullah A , Wahjono E 
Published: March 2020

Abstract
To get a renewable energy source where the characteristics of the source can be easily adjusted according to user requirements is one of the keys to success when testing a microgrid system. This research proposes an unilluminated PV method with temperature and irradiance parameters that can be set using a programmable power supply that is remotely regulated from a PC. The energy generated from the unilluminated PV simulator is connected to a grid tie inverter to be integrated in a microgrid. The simulator performance test produces a maximum power of 102.87 VA when using PV 120 WP with an irradiance setting of 1000 W/m2.
The impact of earthquake on clean water demand and supply at North Lombok regency, Indonesia
Authors: Hidayat Ari Ramadhan , Triatmadja Radianta , Supraba Intan 
Published: March 2020

Abstract
An earthquake of magnitude 6.4 Mw hit Lombok, Indonesia in July 2018, followed by another 6.9 Mw earthquake magnitude in less than a month in August 2018. The earthquake caused fatalities and damage to infrastructures, including the facilities of clean water. The main objective of this study is to know the impact of the earthquake towards clean water facilities damage, and to analyse clean water demand and supply after earthquakes in North Lombok Regency. Another purpose is to propose disaster mitigation to be implemented in the other disaster prone regions of Indonesia. The primary data were collected through field survey and questionnaire samples of 110 respondents. Secondary data regarding the damage of clean water network were collected from the Regional Water Company (PDAM) of North Lombok. The results of this study show that many clean water facilities were damaged due to earthquake. The amount of clean water demand in Lombok Island after the earthquake was decreased by 19.03%. The number of wells users after the earthquake increased from 22.73% to 57.27%. The potential groundwater for clean water in the Lombok Island is more than sufficient to fulfil the requirement of clean water during disaster. However, further studies are required to realize such idea.
Vacuum preloading, an alternative soft ground improvement technique for a sustainable development
Authors: Gouw Tjie-Liong , Gunawan A 
Published: March 2020

Abstract
Preloading with soil surcharging in combination with prefabricated vertical drain is one of the common methods used in improving high compressibility and low shear strength of soft soils, particularly in improving very soft to soft clay. One of the main issues of this technique is it requires a high volume of backfill material to apply the surcharging, hence, whenever the availability of the backfill material is scarce or remote, it becomes expensive. In such a case, vacuum preloading becomes one of the best options to be applied in alleviating the high compressibility and low shear strength of the soft clay layers. This vacuum technique also helps to create a sustainable environment as it omits the needs of a high volume of backfill material. Therefore, no hills cutting or ground excavation is required. This paper presents the difference between surcharging and vacuum preloading methods, the working principle, and installation of vacuum preloading. Case histories in improving the soft soils of in low land areas, a large residential located on high ground about 700m from sea level, and a highway construction projects are presented. The case histories revealed that proper application of vacuum preloading could effectively improve soft clays, be in a low land area or high ground area. The depth improved can reach as deep as 25m.
Geofoam: a potential for Indonesia’s soil problem
Authors: Gunawan Anthony 
Published: March 2020

Abstract
One major issue in construction is settlement. Building any structure above compressible soils without proper consideration can lead to considerable damage and maintenance cost. Geofoam is a type of light-fill material in the lightest category. Since the 1970s, geofoam has been used worldwide to address settlement problems. Unfortunately, geofoam has not received much attention in Indonesia, mainly due to its cost compared to traditional fill. This paper covers the application of geofoam for road construction based on real soil conditions in Indonesia. From the analysis conducted, the use of geofoam reduces the compacted fill required by 40%. This saves not only construction time, but also carbon footprint of the road design. When the reduction of time by using geofoam is considered, geofoam becomes a feasible solution economically as well as environmentally.
Data annotation system for intelligent energy conservator in smart building
Authors: Pardamean Bens , Cenggoro Tjeng Wawan , Chandra Bloomest Jansen , Rahutomo Reza 
Published: March 2020

Abstract
The concept of smart building includes the optimization of energy usage in a building. One of the possible solutions for this is to adaptively adjust appliances utilization according to activity level in the building. Thus, an intelligent activity estimation system needs to be developed. However, massive annotated dataset is necessary to train the system. Therefore, we propose a system that enables rapid data annotation to collect the massive dataset. With the proposed system, an image can be annotated within 4.8 seconds in average.
Activity and risk identification in audit process on integrated management system to increase performance efficiency of construction services organization in Indonesia
Authors: Dewi Afifah , Latief Yusuf , Sagita Leni 
Published: March 2020

Abstract
The audit process of integrated management system is combining efforts to ensure or compare whether the work results is compatible with the criteria that have previously determined. Likewise, the benefit of audit process of integrated management system is means to achieve continuous improvement. Integrated management system itself is a combination of two or more management systems that make it easier for organizations to achieve their objectives. Specifically, in this research is talk about combine the quality management system, environmental management system and occupational health & safety management system. The purpose of this study is to identify the activities, objectives and risks in the audit process if the management system is integrated (quality, environment, and occupational health & safety). Also, to know whether that activities, objectives and risks affect the increased efficiency of the performance of construction services organizations in Indonesia. After identified all of them, the next step is to find out the dominant risks that may can happen in the audit process of integrated management system. And then, the final step is to find out how to manage those dominant risks. This study uses the respondent’s survey strategy to identify activities, objectives, and risks and uses a case study strategy to find out the dominant risk management strategies. The results of this study in the form of activities, objectives, and risks in the integrated management audit process and find out whether the activities, objectives and risks affect the increase in the efficiency of the performance of construction services organizations in Indonesia and how to manage these dominant risks.
The effect of mixing speed to adsorption heavy metal Cu2+ and color using kepok banana peel waste
Authors: Delaroza Rivania , Wijayanti Asih , Kusumadewi Riana Ayu , Hadisoebroto Rositayanti 
Published: March 2020

Abstract
Home industry of screen printing generally disposes wastewater directly into drainage without being processed first. Wastewater from screen printing industry has a high metal content exceeding the quality standards of Minister of Environment Regulation no. 5 of 2014 concerning Waste Water Quality Standards which are being problem for the environment. This study aims to analyze the effect of mixing speed on adsorption of heavy metal Cu2+ (Copper) using adsorbents from the utilization of kepok banana peel waste in batch reactors and mixed using the jartest tool. In the process of making the adsorbent, the kepok banana peel was dried for 2 days and carbonized by using furnace at 400°C for 2 hours to become powder. After the carbonization process, the size was uniformed into 100 mesh and activated using H2SO4 with an immersion process for 24 hours. The adsorbent powder was then used as much as 10 grams in 250 mL of screen printing wastewater with variations in mixing speed (rpm): 100,150,200 and variations in contact time (minutes): 30,60,90. The result showed that the optimum mixing speed is 100 rpm with a time of 60 minutes. The initial concentration of heavy metals Cu2+ of 3.52 mg/L and after the adsorption process it becomes 0.0716 mg/L, that meet the quality standards of 0.8 mg/L.
Identification of institutional safety factors affecting safety culture in construction sector in Indonesia
Authors: Machfudiyanto Rossy Armyn , Latief Yusuf , Sagita Leni , Suraji Akhmad 
Published: March 2020

Abstract
The construction sector in Indonesia is faced with the fact that the high number of work accidents. The number of work accidents in Indonesia is among the highest in the ASEAN region. efforts that have been carried out so far in the form of making and updating legislation, technical standards, supervision, guidance, counseling and outreach to increase awareness of company leaders and workers in general about the benefits of Occupational Health and Safety (OHS) implementation, are not complete if the coordination of each stakeholder institution (stakeholders) are not implemented properly so that everything runs individually according to their respective interests. The purpose of this study is to identify current OHS institutional conditions in the construction sector. The methodology used is content and construct validation, survey respondents were processed using the Relative Important Index Analysis. the results of this study explain that the realization of a culture of occupational safety and health in Indonesia (0,968) Understanding of occupational safety and health is embedded from an early age to higher education (0,914) Inadequate OHSE HR Competencies (0,856) and Ministry of labor (0,919) as the most dominant indicator in shaping the institutional system in the construction sector in Indonesia
The effect of cumulative damage factor value on existing runway life service
Authors: Prahara Eduardi , Rachma Hanna Annisa 
Published: March 2020

Abstract
Safety and convenience are the most important thing in running of an airport, the runway condition must always be considered especially in maintenance to prevent and repair the damage. In this analysis an evaluation of the conditions of the existing runway pavement of an airport in Indonesia is conducted by analyzing the pavement service life condition with the Cumulative Damage Factor (CDF) value. Considering data confidentiality, the airport will be called just by the sample airport. Furthermore, CDF will be calculated and graphed using the FAARFIELD program. The results show that the CDF value of the existing pavement of the sample airport is 10.42, with the largest CDF contribution from the B737-800 aircraft of 4.40 and A320 of 3.32. Concluding there is a correlation where if a surface layer is added, there will be a decrease in the value of CDF where an extension of the life of the pavement will occur.
Seismic performance of reinforced concrete structures with pushover analysis
Authors: Pierre Andrew John , Hidayat Irpan 
Published: March 2020

Abstract
A building that looks strong enough might possibly collapse due to the earthquake load. Earthquake resistant design is generally based on an analysis of elastic structures that are given a load factor to simulate ultimate conditions. When an earthquake occurs, the collapse behavior of a building structure is inelastic. Evaluations that can estimate the inelastic condition of buildings during an earthquake are analyzed using pushover analysis. Pushover analysis is the nonlinear static load of the structural collapse behavior of an earthquake, while the performance point is the magnitude of the maximum displacement of the structure during a earthquake. The inelastic structure analysis and evaluation method used computer application SAP 2000. Evaluation results of structural performance levels according to Applied Technology Council 40 (ATC-40) on the X and Y direction structure, the maximum total drift and total inelastic drift maximum values in the X and Y directions included in the Immediate Occupancy (IO) level category (maximum drift value of a building structure 0.00047 < 0.005).
Seismic assessment of RC building designed by local practice
Authors: Suwondo Riza , Alama Sohaib 
Published: March 2020

Abstract
Current research works and observations have shown that the parts of the Kingdom of Saudi Arabia are considered as low to moderate seismic zone. However, most of the residential buildings were designed for gravity loading only and lack of detailed to resist the seismic load. This research focused on the seismic evaluation of an existing typical residential building that was assumed to be located in different regions (Makkah, Jeddah, Gizan and Haql). This was accomplished by conducting a pushover analysis to simulate the nonlinear behaviour of the building. The analysis results in the failure mechanism of the building so that the weak elements can be monitored. These results help engineers to take any action for rehabilitation and strengthening work.
Efficiency measurement of transjakarta corridors towards people activities using DEA method (study case: corridor 1 and corridor 2)
Authors: Suhendra Andryan , Prahara Eduardi , Arumsari Putri , Wulandari Titut , Juliastuti  
Published: March 2020

Abstract
Increasing population every year in DKI Jakarta cause higher mobility. Transjakarta is the solution of the problem in this metropolitan city. This study aims to measurements of the efficiency Transjakarta corridors based on the level efficiency in each bus station by applying the Data Envelopment Analysis method CCR model and to make recommendation for future improvement. DEA was used because it allowed multiple input and multiple output. In this study the ridership of public transportation is considered as direct output characteristic of efficiency and four indicators are selected as input. From the result, corridor 4 has higher efficiency than corridor 1 and 2 by using the output orientation, all corridors have to improve the performance for increasing the ridership
Factors affecting junior high school students’ bike to school in Surakarta
Authors: Handayani Dewi , Hartono Widi , Bagaskara Alfin Wirawan 
Published: March 2020

Abstract
Cycling to school is a Surakarta City government program to reduce the use of motorbikes by students. The development of facilities for cyclists by the City of Surakarta is still limited to certain areas. On the other hand, the traffic conditions when going to school and coming home from school are problems and considerations for students to cycle to school. This paper will examine the factors that influence junior high school students to cycle to school in Surakarta using the ANP (Analytic Network Process) method. There are four main factors and 16 sub-factors of each of the main factors used in this paper. The main factors are behaviour, physical condition, social conditions, and environmental conditions. The results of the study that the environmental conditions are the greatest factor students cycling to school. When reviewed as a whole, these factors are calculated simultaneously, and found the five most influential factors. The five factors are bike ownership, health, parent’s salary, gender and no cycling friends.
Comparison analysis on vehicle operating cost (VOC) and passengers perception between transjakarta bus type of zhongtong LCK6180GC and scania K3201A (case study: transjakarta corridor 9)
Authors: Prasetyadi R , Prahara E , Suhendra A 
Published: March 2020

Abstract
The purpose of this research is to analyze comparison of vehicles operating costs (VOC) between the bus type of Zhongtong LCK6180GC and bus type Scania K3201A corridor 9, and also to know the level of satisfaction passengers using these two types of bus. The method used in this research including calculation of vehicles operating costs, Likert method, and distribution frequency. The results in summary is VOC of the type of Zhongtong LCK6180GC is smaller than Scania K3201A. Passengers’ satisfaction of Zhongtong LCK6180GC is lower then Scania K3201A but Zhongtong LCK6180GC gives more benefits for PT. Transportation Jakarta compare to Scania K3201A
Spatial plan based on disaster mitigation in the city of Mukomuko, Bengkulu
Authors: Noegroho Noegi 
Published: March 2020

Abstract
Many cities in Indonesia are located in area that is actually not safe from the threat of natural disasters, one of them is the city of Mukomuko in Bengkulu province. How should a settlement area be built in vulnerable city to natural disasters especially an earthquake and tsunami. This study is intended to provide an overview of what factors are considered in development based on disaster mitigation, one of which is through its spatial planning which categorizes zone in the study area. Research begins by understanding the location, character of the disaster that threat the location, mapping and finally producing prioritize spatial plans which response to natural hazard and definetely integrated with the spatial plan in the hierarchy above. The main objective is clearly creating a sustainable settlement area for the community.
Thermal comfort mapping on Pasar Gedhe Hardjonegoro to obtain passive cooling strategy in warm humid tropics
Authors: Soebiyan V 
Published: March 2020

Abstract
Sustainability energy in tropical climates based on passive cooling refers to a thin and slender shape building as the design strategy to obtain comfortable conditions inside the building. Therefore, thermal comfort problem would arise on a wide building with overcrowded people such as market building like Pasar Gedhe Hardjonegoro. The aim of this study is to examine the factors that influence the thermal comfort of a wide span building using passive cooling design. The tenants as the subject of this research are the main indicator in which the thermal comfort study of a building could be determined. The result of field studies indicates that there is a relation between the user’s thermal comfort with the different location in the building. Study showed that thermal comfort is influenced by the function of circulation.