bluuebunny/crossref_metadata_2025_split huggingface dataset:
Zeolite catalytic pyrolysis of waste tire into fuel in gasoline hydrocarbon range
Authors: Suhartono  , Harsanti M , Septiyanti W , Suharto  , Achmad F 
Published: February 2022

Abstract
The increasing production of automotive vehicles has led to a significant increase in the rate of waste tire generation. Approximately 160 tons/day of waste tire are produced in Bandung City which will eventually become an environmental problem. However, the pyrolysis process can be applied as a technology to treat waste tire to produce valuable hydrocarbon products. This study addressed the description effect of used tire waste on the yield, properties, and composition of tire pyrolysis oil (TPO) products. The effect of zeolite catalysts on TPO was also studied. 500 g of the waste tire was pyrolyzed using a small tube reactor containing a zeolite catalyst at various temperatures of 300-450 °C for 60 minutes. From the present work, the highest TPO product yield of 36.6 %-wt was obtained during the pyrolysis of the waste tire. The characteristics of TPO as a fuel, such as viscosity and density are close to those of gasoline fuel with a heating value of about 44 MJ/kg. The compounds contained in TPO were classified into hydrocarbon groups compounds as commercial fuel which are included as compounds of aromatics, paraffin, naphthenes, and cycloparaffins through the results of GC-MS spectrum analysis. The TPO from waste tire pyrolysis is on par with the hydrocarbon range of gasoline (C7-C11).
Assessment of lighting system in library room of E11 building, Universitas Negeri Semarang
Authors: Hangga A , Putri R D M , Pratama D , Nisa A M , Aziz M A , Apriliyanto M 
Published: February 2022

Abstract
Lighting is primary factors for visual comfort in the library. The library of Universitas Negeri Semarang had the illuminance of 97 – 672 lux. Based on SNI 6197-2011, the library must have a minimum illuminance of 300 lux. This study aims to assess the quality of lighting, design the layout and lighting system using Dialux evo 9.2 software. This research was expected for the best layout design to support the lighting system to follow SNI 6197-2011. This research used the library of E11 Building, Universitas Negeri Semarang with dimension of 8.6 m x 5.7 m x 3.4 m. This research was carried out by redesigning the layout of the furniture, replacing the type of lamp and armature and calculating the efficiency electricity cost. The results declared that the quality of lighting in the library using TL-D 36W did not achieve SNI 6197-2011. Redesigning of furniture layout and replacing of TL-D with LED tube are solutions to achieve the minimum illuminance. In addition, replacing TL-D with LED Tube can save electricity costs ranging from 64% – 69% per year.
Textile natural dye powder of Terminalia catappa leaves
Authors: Krisnawati M , Cahyani I W N , Paramita O , Kusumastuti A 
Published: February 2022

Abstract
This study was carried out to utilize the extract of Terminalia catappa leaves as natural dyes powder on cotton fabric using alum mordant and various solvents. Terminalia catappa leaves were extracted using solvents of water, 25% ethanol, 50% ethanol, 75% ethanol, and 100% ethanol at a ratio of 1:10 with pre-mordanting and fixation methods. Natural dyes powder was characterized using parameters of colour direction, colour intensity, and colour fastness. It was found that type of solvent affected the colour direction and colour intensity. The results revealed the direction of yellow-green to brown colour. It can be concluded that extract of Terminalia catappa leaves could be used for the production of natural dyes powder on cotton fabric.
Production of bay leaf instant powder drink using different amounts of rock sugar to the level of preference and nutrient content (carbohydrates and flavonoids)
Authors: Wahyuningsih  , Safitri Y , Rosidah  , Agustina T 
Published: February 2022

Abstract
The purpose of this research is to find out about people’s level of likeness, and nutrient content (carbohydrates & flavonoids) of instant bay leaf powder beverage with different amounts of rock sugar (60 gr, 80 gr, and 100 gr). This research used experimental method. The experimental design was the perfectly randomized design. The likeness test was analysed using a descriptive percentage analysis to determine people’s level of likeness. Nutrient content (carbohydrates and flavonoids) was determined by laboratory tests. The results showed that people’s level of likeness for instant bay leaf powder beverage for sample A, B and C respectively were 82.6339%, 82.3214%, 76.2946%. The three scores fall into “like” category and sample A is the most liked sample. The results of laboratory tests for carbohydrate in sample A, B and C respectively were 73.2511%, 76.2217%, 78.8552%. Meanwhile the result for flavonoids in sample A, B and C respectively were 0.0638%, 0.0636%, 0.0472%.
The use of Siam weed (Eupatorium Odoratum l.) as natural dye in eco-print with pounding technique
Authors: Musdalifah  , Maulina R D , Nurmasitah S , Damayanti A 
Published: February 2022

AbstractTo reduce the negative impact caused by synthetic dyes, development and exploration are carried out with the use of Siam weeds (Eupatorium odoratum L) as an alternative. It has main component such as tannin, phenol, flavonoids, saponins and steroid. The method in the study used a quasi – experimental design with a control group research design with descriptive analysis. To make the color solutions by hot extraction, pre-mordant using alum was carried out in 15 times. The post mordanting process used 3 types of mordant; alum, quicklime, andtunjung. Organoleptic test used to test the contrast, the suitability of the dyeing result, and the color of eco-print motif using the pounding technique. The result showed that Siam weed can be used as natural dyes for textile. The color direction of dyeing with mordant alum fixation produced a dawn blue, quicklime produced silver cloud, andtunjungproduced dusty olive. While the color result of eco-print on alum fixation was tea color, quicklime was mistletoe and olive branch, andtunjungwas deep lichen green. The dark color result on thetunjungfixation and the lightness color on alum fixation.
Quality of motif, colors and fastness of Sekar Ayu ecoprint products in terms of mordant type, natural dyes, and types of leaves on silk fabrics
Authors: Wahyuningsih S E , Kusumastuti A , Krisnawati M , Paramita O , Yuniar M , Furi M R 
Published: February 2022

Abstract
The purpose of this study was to describe the ecoprint quality of silk fabrics with different natural dyes in terms of the aesthetics of the motif, and the color and fastness of washing and rubbing. This research method is experimental research with descriptive percentage analysis. Experiments using tunjung and alum mordant as well as teak leaf ecoprints, Japanese papaya (Cnidoscolus aconitifolius), cherry leaves (Muntingia calabura), and Jatropha wulung leaves as well as natural colors tegeran, jelawe, and indigovera. Methods of collecting data by experiment, observation and from the test results in the textile laboratory. The results showed that the Aesthetic Quality of the silk fabric ecoprint motif was very good, and the use of natural dyes of jelawe and tunjung mordant produced the best motifs. The results of laboratory tests showed the color direction of the ecoprint fabric was the best with alum mordant and natural dye tegeran with the highest L* 80.90 value. The results of the fastness of ecoprint fabrics against soap washing on silk fabrics using natural dyes of jelawe, mordant alum showed the best because it resulted in a score of 4 in the ‘Good’ category and the others obtained 3-4 so that the category was sufficient. The value of fastness to wet cloth rubbing on ecoprint silk fabrics overall shows good because it produces a score of 4-5 in the ‘Good’ category.
The impact of different types of mordant on the eco-print dyeing using tingi (Ceriops tagal)
Authors: Nurmasitah S , Solikhah R , Widowati  , Milannisa A S 
Published: February 2022

Abstract
The purposes of this study are (1) to determine the effect of mordan tawas, tunjung, and tannins on the ecoprint dyeing result using Tingi (Ceriops tagal) dye on primisima fabrics (2) to find the best results in ecoprint dyeing using different types of mordan including the pattern clarity, colour sharpness, colour fairness, and colour absorption. The method of this research is experimental. The independent variables are mordan tawas, tunjung and tannins. The dependent variables are the ecoprint dyeing results including the pattern clarity, colour sharpness, colour fairness, and colour absorption. The control variables are Tingi (Ceriops tagal) dye, mordaning technique, and primisima fabric. The data of the study were collected by using observation. There were 5 ecoprint treatment samples used in the design of this study, i.e. sample A - using mordan tawas on the main fabric, Tingi (Ceriops tagal) dye on blanket and mordan tawas in the fixation; sample B - using mordan tawas on the main fabric, Tingi (Ceriops tagal) dye on the blanket, and mordan tunjung in the fixation; sample C - using mordan tunjung on the main fabric, Tingi (Ceriops tagal) dye on the blanket, and mordan tawas in the fixation; sample D - using mordan tunjung on the main fabric, Tingi (Ceriops tagal) dye on the blanket, and mordan tunjung in the fixation; sample E - using mordan tannin on the main fabric, Tingi (Ceriops tagal) dye on the blanket, and mordan tawas in the fixation; and sample F - using mordan tannin on the main fabric, Tingi (Ceriops tagal) dye on the blanket, and mordan tunjung in the fixation. Based on the test of pattern clarity, colour sharpness, colour fairness, and colour absorption, the best ecoprint treatment is shown in sample A, which is the ecoprint treatment using mordan tawas on the main fabric, Tingi (Ceriops tagal) dye on the blanket, and mordan tawas in the fixation.
The impact of the use of different mordantt types on the ecoprint dyeing using tegeran (Cudraina javanensis) dye on primisima fabric
Authors: Sholikhah R , Widowati  , Nurmasitah S , Nafi’ah R 
Published: February 2022

Abstract
The purposes of this study are (1) to determine the effect of mordantt tawas, tunjung, and tannins on the ecoprint dyeing result using tegeran (cudraina javanensis) dye on primisima fabrics (2) to find the best results in ecoprint dyeing using different types of mordantt including the pattern clarity, colour sharpness, colour fairness, and colour absorption. The method of this research is experimental. The independent variables are mordantt tawas, tunjung and tannins. The dependent variables are the ecoprint dyeing results including the pattern clarity, colour sharpness, colour fairness, and colour absorption. The control variables are tegeran (cudraina javanensis) dye, mordantting technique, and primisima fabric. The data of the study were collected by using observation. Based on the test of pattern clarity, colour sharpness, colour fairness, and colour absorption, the best ecoprint treatment is shown in sample C, which is the ecoprint treatment using mordantt tunjung on the main fabric, tegeran (cudraina javanensis) dye on the blanket, and mordantt tawas in the fixation.
Preparation and characterization of RHA based ceramic membrane for gas leak testing in SOFC seals
Authors: Gunawan  , Sulistyo  , Setiawan I 
Published: February 2022

Abstract
Solid Oxide Fuel Cell (SOFC) systems show great potential in future power generation applications. SOFC has many advantages, including high efficiency, low emission, and flexible modular structure. SOFC is an electrochemical device that converts fuel into electricity directly. If hydrogen gas is used, it will produce electricity and waste products in the form of heat and water vapor. The complete SOFC module system consists of a furnace, cell stack, fuel and oxygen. Several parameters that affect SOFC performance are fuel flow rate, furnace temperature, cell material, and collector current. SOFC consists of anode, electrolyte, cathode, and current collector. These parameters have a correlation with each other in building a SOFC system, resulting in a good cell and optimal output voltage. SOFC based on electrolyte material yttria stabilized zirconia (YSZ) operates at working temperatures between 600 to 1,000°C, so all materials used must be able to withstand these temperatures. In the empirical case to separate each function of the components in the fuel cell, a sealant is needed. The sealant function prevents fuel and oxidant leakage in the stack and electrically isolates the cells in the stack. So the other sealant material requirements are to have thermal and chemical compatibility with other cell components, chemically and physically stable at high temperatures and have good mechanical strength. The composition of the material (RHA, CaO, Al2O3, MgO and BaO) with six formulations (F1-F6) which was determined as a gas leak test specimen through a synthesis process using the ball mill method for 12 hours resulted in a grain variation between 3.808 um – 19.631 um. The production of gas leak test specimens was successfully carried out by molding which was designed to be effective using a material weight of 1.5 grams with a 96% PVA binder as much as 20% by weight. The size of the specimen obtained in the form of a membrane with a thickness of 1-1.1mm. The preparation of the test material can be continued in the next gas leak test process.
Technical analysis feasibility solar power plant on-grid system design in Junior High School 3 Purwodadi
Authors: Windarta J , Sinuraya E S , Karnoto  , Kurniawan I , Diansyah I M N 
Published: February 2022

Abstract
Indonesia’s commitment to reduce greenhouse gases by 29 % by transforming into uses of renewable energy 23 % in 2025 has been written on Paris Agreement 2015. The increasing growth rate of energy demand each year becomes a new problem for Indonesia, if Indonesia is still dependent on fossil energy. The energy demand in Indonesia in 2020 is 268 TWh and it is estimated that it will be 364 TWh in 2025. Indonesia is located on the equator and has very large solar potential. Data from National Energy Council (DEN) shows that solar power potential in Indonesia is 207.9 GW, while the current installed in Indonesia has only reached 100 MW or 0.05% of the total. The need for early awareness becomes a priority to support the creation of awareness of the importance of renewable energy. This study was conducted to assess the potential of solar power on SMP N 3 Purwodadi. The study uses PVSyst 7.1 software with variation of photovoltaic panels ranging from 1040 wp to 1350 wp to get annual generated electric power. Results of this study showed that installation of solar power on SMPN 3 Purwodadi generated electrical power from 1516 kWh to 2205 kWh.
Risk management for energy efficiency in information technology project: a case of a government agencies in Indonesia
Authors: Wahyudi A S T , Raharjo T , Wantania L J 
Published: February 2022

Abstract
The Research and Development Agency and Books Secretariat is a government organizational unit that uses vendor services (outsourcing) in information technology (IT) projects. However, outsourcing does not guarantee that the project will run successfully (on time, within the estimated cost, and satisfactorily). Several examples of IT project outsourcing failures demonstrate the critical role of risk management. One of the frameworks used to develop risk management is the Project Management Body of Knowledge (PMBOK) approach. In this study, the level of risk is measured using quantitative methods. The results show that outsourcing IT projects with a reasonably high risk is found in analysing user requirements, project time, and vendor staff qualifications. Risk response planning and risk monitoring are critical stages after the risk level has been identified. The implementation of risk management is expected to be a guideline for organizations in implementing IT project outsourcing, thereby increasing the chances of project success.
Cybersecurity project implementation for resources protection: a case study of the National Narcotics Board
Authors: Nugraha A C , Hidayanto A N , Indriany H S , Kurniati H , Firdaus B M A , Bastara  
Published: February 2022

Abstract
Cybersecurity is currently being used by government organizations in protecting their resources such as data and assets as well as avoiding catastrophic pollution and the failure of key infrastructure that can harm human health and environment. The increasingly modus operandi of modern drug crime syndicates which utilizing technology to attack the network of the National Narcotics Board (NNB) is a threat and vulnerability for NNB, so NNB must make efforts to mitigate the risk. Research on the implementation of cybersecurity projects at the National Narcotics Board aims to explore information related to the implementation of cybersecurity projects in securing and defending data and information networks at NNB. The research method used is a descriptive approach with qualitative methods through semi-structured interviews and observation. This cybersecurity project provides benefits for data and information protection at NNB, through a cybersecurity monitoring system assisting NNB in monitoring cyber traffic conditions in real-time. From this study, it was found that the factors influencing the implementation of cybersecurity projects that were mapped to critical success factors for information technology projects, namely involvement and effective communication, capability and motivation of the team, capability, and leadership of the project manager, requirements management, clear project objectives, and top-level management support levels.
Characteristics of architectural typology in colonial buildings in Loji Wetan Surakarta area
Authors: Kuncoro I R A , Setyaningsih W , Sunoko K 
Published: February 2022

Abstract
The characteristics of the façade are architectural elements in the diversity of shapes of each building. Architectural Typology is an approach to identify architectural attributes to define the similarities and differences of elements in a building object. In the area of Loji Wetan Surakarta which has a connection with the Vastenburg fortress, there are still some colonial buildings of Dutch heritage that still exist. This study aims to identify typology on the façade of colonial buildings in the Loji Wetan area of Surakarta. The data collection process is conducted through field observations and in-depth interviews. Collection of primary data through purposive sampling (visual and measurement). While secondary data through the study of literature and related documents. Based on the results of research characteristics of architectural typology in colonial buildings in the Loji Wetan Surakarta area there is a tendency for uniformity and diversity on the façade of architectural elements. There are also differences in the characteristics of buildings caused by periods in the area. (neo-gothic, neoclassic, postmodern)
The relationship of traders’ activities to the quality of city park (case study: Taman Sampangan Semarang)
Authors: Pratiwi I , Wicaksono D , Wibowo A A , Setiyawan A 
Published: February 2022

Abstract
The implementation of planning and green open space planning in Semarang does not consider and examine the existence of Street Vendor as informal sector. Because there is no particular place provided to them, they will promote their product in improper place. This study aims at identifying the phenomenon appeared as result of the sporadic existence of street vendor in “Taman Sampangan” Park. By employing descriptive qualitative method, this study uses “Taman Sampangan” park as its subject. While the technique of collecting data is accomplished by using observation and documentation. This documentation aims to give brief and clear description about the situation. The result shows that the existence of street vendor both inside and outside the park will trigger positive and negative impact. However, the negative impact will be clearer such as they build their tent inside the park area, on the pedestrian path, or even on the parking area. Those vendors are illegally selling their products in almost pedestrian path. This because its accessibility and strategic location will potentially attract the customers. For this reason, there is violation of space planning rule. The uncontrolled growth of street vendors in this area force people to walk in the street so it will trigger the risk of accident. Therefore, it is necessary to provide counselling to people who visit the park and traders who sell in Taman Sampangan area. In addition, there is a need to add garden elements that have not yet been available, and the need to arrange street vendors carts so that the function of the park can be utilized optimally and sustainably by the residents of Semarang.
Comparison analysis of unstandardized roundabout between MKJI 1997 and USHCM 2000 by simulation model
Authors: Purwanto D , Basuki K H 
Published: February 2022

Abstract
Roundabout affect adversely on traffic if they do not comply with predetermined standards. This study aims to compare the impact of traffic on non-standard roundabouts with two different methods. The analytical method used is the Indonesia Highway Capacity Manual (MKJI) 1997 [5] and the United State Highway Capacity Manual (USHCM) 2010 [6] using the Synchro7 software. The results of the analysis related to the geometric parameters of the road, calculating the Weaving Ratio (Pw), the Capacity (C), the Degree of Saturation (DS), delays in the weaving interlacing section, traffic delays at roundabouts (DTR), queuing opportunities (QP%) and all in unit a passenger car unit (pcu). The results of the analysis show that the analysis using the Synchro software for USHCM 2000 method, there are significant differences compared to the MKJI 1997 method. By using the Synchro7 software, the degree of saturation obtained is very large, this may be due to the inaccuracy of modeling in the application compared to the actual conditions. In conclusion, with these considerations and traffic behavior in Indonesia, the results of the analysis used are the MKJI 1997 reference method.
Study of the application of the green construction concept on the integrated college building project of Teuku Umar University
Authors: Febrianti D , Samsunan  , Mawardi E 
Published: February 2022

Abstract
Green construction is a sustainable concept in construction projects. The implementation stage plays an important role in the construction sector, because it has an impact on the environment. This study aims to determine the percentage of the application of the most dominant factors and constraints in the application of the green construction concept in project implementation. This research was conducted during the implementation of the Teuku Umar University Integrated Lecture Building project. The implementation phase of this research begins with a survey, to find out the construction implementation process, followed by interviews with workers, consultants, contractors. The results of the interviews were analysed using the Delphi method. The results show that Green construction in the implementation of the Teuku Umar University Integrated Lecture Building project has not been widely applied, with a weight value of only 10.2%. Constraints in the application of green construction based on the results of the questionnaire following the iteration obtained four obstacles, namely the lack of detailed rules regarding green construction, lack of socialization from the government regarding saving energy sources that support construction, lack of knowledge from contractors. about green construction, and the lack of knowledge and experience of contractors, green construction consultant.