bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimation Analysis of Long-Term Electrical Energy Needs In PT. PLN (Persero) P2B REGION MERAUKE Area Using Linear Regression Method
Authors: Mangera P , Hardiantono D 
Published: July 2020

Abstract
Electrical energy is one of the important parts in the development of an area. The development of sustainable development and improvement in living standards can cause electricity consumption to continue to increase high, not least for Merauke Regency. In meeting the future electrical energy needs, it is necessary to prepare the development of the electrical system so that it is able to serve the demand for electrical energy needs in the future. One of the ways is to make predictions or estimates the electrical energy requirements.
The estimation of the need for electrical energy is needed to answer the high demand for electricity that continues to increase, so that we see the development of electricity consumption in Merauke Regency that is linear. The method used in this research is analyzing the calculation of electricity needs using the Linear Regression Method.
The estimation results of electrical energy needs in 2018 electrical energy needs amounted to 127,035,341 KWh, while in 2022 amounted to 17,139,908 KWh with an average increase per year of 8,747,989 KWh or 5.84%. From the calculation results, the household sector becomes the sector that has the highest electrical energy needs up to 2022 amounting to 114,294,938 KWh with an average percentage increase per year of 5.82%
Implementation of Energy Efficient Building Concepts In Design Office of Dinas Pendidikan dan Kebudayan Kabupaten Merauke
Authors: Octavia Sari , Raubaba Henry Soleman , Simorangkir Yosi Valentina 
Published: July 2020

Abstract
The building plays an important role in the use of energy in Indonesia. Most of the expenditure of energy in Indonesia is generated by a particular building electricity consumption by households and the commercial sector. electrical energy use in buildings mostly used to create an artificial climate such as air conditioning and lighting. The building was also partially responsible for greenhouse gas emissions and the use of raw materials that are manufactured to material such as sand, gravel and cement. Design Office of Dinas Pendidikan dan Kebudayaan Kabupaten Merauke try to apply the concept of energy-efficient buildings. The purpose of this study is to analyze the application of energy-efficient building concept in the design office Dinas Pendidikan dan Kebudayaan Kabupaten Merauke. This research is qualitative research phases namely direct observation in the field, videotaped, and the study of literature. The results showed Building Design Office of Dinas Pendidikan dan Kebudayaan Kabupaten Merauke try to apply the concept of energy-efficient building on the building design by way of setting the basic building coefficient, the orientation of the building, s / v ratio and wide openings made structures. But the use of materials, the use of concrete with sand brought in from outside the area is not considered environmentally friendly The results showed Building Design Office of Dinas Pendidikan dan Kebudayaan Kabupaten Merauketry to apply the concept of energy-efficient building on the building design by way of setting the basic building coefficient, the orientation of the building, s / v ratio and wide openings made structures. But the use of materials, the use of concrete with sand brought in from outside the area is not considered environmentally friendly The results showed Building Design Office of Dinas Pendidikan dan Kebudayaan Kabupaten Merauke try to apply the concept of energy-efficient building on the building design by way of setting the basic building coefficient, the orientation of the building, s / v ratio and wide openings made of building. But the use of materials, the use of concrete with sand brought in from outside the area is not considered environmentally friendly.
Combined Effects of Vertical Drain and Pre-loading to Reduce The Number Of Geotextile Reinforcement For Road Embankment Design
Authors: K Sari Putu Tantri , Wardani Mila K 
Published: July 2020

Abstract
The study of the behavior of embankments reinforced by geosynthetic construction on soft clay soil with and without a prefabricated vertical drain is described. The effect of a pre-loading with stage construction method to construct the embankment, the gain of bearing capacity, as well as the depth of compressible soil was also considered in this study. The limit equilibrium using Bishop and Fellenius methods was used in this study to determine the stability of the embankment. Vertical drain installation, combined with the stage construction method, substantially reduces the number of geotextile reinforcements needed. The number of geotextiles can be reduced by up to twice that compared with foundation soil without PVD. Furthermore, the combined use of geotextile and PVD can improve the performance of embankment height as well as increase the critical height of the embankment with geotextile reinforcements. Without PVD, the embankment will be safe against landslides (without geotextile) of less than 3.5 meters. When using PVD, the embankment critical height can increase by up to 7 meters. This condition occurs when the embankment is constructed using the stage construction method, geotextile reinforcement, as well as PVD installation for soil improvement.
Analysis of Accessibility to City Transport Performance Based on Passenger Perception with Case Study: Tambak Osowilangun Terminal Route
Authors: Widayanti F R , Supriyatno D 
Published: July 2020

Abstract
Large urban areas certainly require transportation facilities and infrastructure that reach all corners of the city administration area. Inequality in the number of passengers is unavoidable due to differences in accessibility of each region. One example of the imbalance in the number of passengers is very clearly seen in two large terminals serving Surabaya city routes, namely the Purabaya terminal and the Tambak Osowilangun terminal. This study aims to describe the effect of accessibility factors on the performance of urban transportation with the Osowilangun Pond Terminal route based on passenger perceptions. The method used in this study was a questionnaire survey with 120 respondents. The survey was conducted at the Osowilangun Pond Terminal as a lonely route location for passengers. The analysis shows that the indicator of the lack of public transportation modes that serve the route results in the lack of access to the Ososwilangun Pond Terminal and the impact on the lack of passengers going to the terminal.
Modern Tropical House: Elevating Traditional Tropical House on Thermal Building Performance Due To Environmental Issue
Authors: Nadiar F , Pattisinai A R 
Published: July 2020

Abstract
Traditional tropical architecture is built using local materials by applying passive design strategies to fix heat problems so the occupants feel comfortable and protected. Over the years, climate change causes rising temperatures and modernization causes the aesthetic element to become important in urban areas. Modern Tropical is a design trend that is now developing after the era of modern minimalist trends which not only tried to solve the heat problem but also the aesthetic problems of tropical architecture. This research aims to evaluate thermal performance in the modern tropical-style house in response to climate change and also how they adapt and modify traditional tropical architectural elements to improve their thermal performance by using the simulation method with the assistance of ECOTECT software. The results showed that houses that adapted and modified elements of traditional modern tropical homes up to 95%, showed better thermal performance. That house can provide thermal comfort for 7 hours and only 31% of percent dissatisfaction. Elements of roofs, openings, sun shading, and local material coatings on traditional architecture are elements that can be adapted and modified in modern architecture. So, tropical architecture no longer looks old fashioned but more stylish while responding to environmental issues.
Analysis of the Ratio of Coarse Aggregate to Porous Asphalt Mixture
Authors: Candra AI , Mudjanarko SW , Poernomo YCS , Vitasmoro P 
Published: July 2020

Abstract
The purpose of the study is finding out the optimal use of coarse aggregates so as to obtain porous asphalt pavements that have high water absorption (porosity) but have a balance in stability and flexibilityThe porous asphalt mixture has a double water absorption (drainage system), which is on the surface that flows out of the shoulder of the road and permeates the pores or the porous asphalt mixture cavity itself.In this research study focused on finding out the optimal use of coarse aggregates so as to obtain porous asphalt pavements that have high water absorption (porosity). From the research, it is gotten the average results between the differences in the use of coarse aggregate diameter and Marshall volumetric characteristics indicate that for the Optimum Asphalt Level values, all meet the specifications of genera that produce KAO values of 7.3 percent. From the graphical observations, it can be concluded that all volumertic calculations and asphalt characteristics using coarse aggregate diameter differences concluded that the use of coarse aggregates 2 centimeter in diameter met the specifications of porus asphalt with a mean value: VMA = 48.12 percent, VIM = 4.86 percent, STABILITY = 897 Kilogram, WEAK = 3.54 milimeter, and MQ = 260.11 Kilogram / milimeter.
Correlation of Concrete Strength and Concrete Age K-300 Using Sikacim® Concrete Additive and Master Ease 5010
Authors: Candra A I , Ridwan A , Winarto S , Romadhon  
Published: July 2020

Abstract
Concrete which is generally used for building needs must reach the age of 28 days according to SNI to achieve the maximum compressive strength value from the plan. Along with the development of developmentthere needs to be research where concrete is planned so that it can achieve the compressive strength that is planned and has a higher quality even though it has reached the age of 28 days, this study uses Sikacim® Concrete Additive and Master Ease 5010 as additional material to obtain compressive strength values wanted. The results of the research conducted at the University of Civil Engineering Laboratory were attended by K-300 concrete planning using additional material Sikacim® Concrete Additive and Master Ease 5010, from the results of the above studies can be seen the compressive strength when 7- day concrete concrete has reached the compressive strength the average value of 251.56 kg / cm2 from there is the role of additives that function to accelerate the hardening of the concrete. Furthermore, for 28 days old concrete has exceeded the planned target of reaching an average value of 316.44 kg / cm2. And the last concrete test when it was 56 days has a value of increase that is high enough to reach an average value of 3 34.22 kg / cm2, here the role of the second additive substance begins to be seen where when the concrete is over 28 days still has a fairly high increase.
The Effect of Stirring Time and Concrete Compaction on K-200 Concrete Press Strength
Authors: Cahyo Y , Candra AI , Siswanto E , Gunarto A 
Published: July 2020

Abstract
Concrete is a component that has an important function for buildings, both in the form of buildings, housing, highways, and other public facilities. The use of concrete, which is getting longer and higher, also has to maintain the quality of the concrete. One of the problems in concrete is the problem of compaction, the existence of cavities in concrete is a problem that if left unchecked will be fatal, concrete that has an automatic cavity will also reduce the value of concrete compressive strength, concrete compaction usually uses a vibrator or vibrator, but in reality the use the vibrator is used in a random way and does not have a fixed time rule, so the concrete is not evenly packed. This study discusses the compressive strength of concrete are produced with a mixture of the same sample but with different rules vibration time s ehingga find the time to achieve the maximum compressive strength of concrete. For the average value of the highest compressive strength produced by concrete withthe duration of Concrete Mix At 30 minutes and vibrator For 5 minutes with strong average value press concrete reaching 202.67 kg / cm2. While the value of the lowest compressive strength is produced byconcrete Durationof Concrete Mix At 30 minutes and vibrator For 10 Minutes above can be seen strong average value press concrete reaching 158.22 kg / cm2
Study of Hidrology Nunukan Raw Water Retention Basin in North Kalimantan
Authors: Trilita Minarni Nur , Suryandari Wahyu , Handajani Novie 
Published: July 2020

Abstract
Water is the source of human life. Therefore it is necessary to make optimum use of it to preserve existing water sources. Raw water demand is influenced by high population growth. The need for raw water in Nunukan Regency is increasing from year to year. Raw water needs in Nunukan Regency are met by utilizing water sources from rivers, wells and rainwater. The available water sources is limited, while the population of Nunukan Regency continues to grow. Therefore, to meet the needs of raw water in Nunukan Regency, a reservoir is needed in the area. One of the elements that must be analyzed in the reservoir design is the hydrological potential that exists including the inflow that fills the reservoir, storage capacity, and flood discharge plans. The analysis results obtained that the volume of water that can fill the reservoir is 0.235 × 106 m3, while storage capacity is 0.013 × 106 m3. Flood discharge plan with a 100-year return period of 4.701 m3/second.
The Isolation of Termofil Amilolitik Bacterium and Activity Test of Harsh Extract Amylase Enzyme From The Hot Spring at Jailolo Bay in North Maluku
Authors: Arfah Rugaiyah A. , Lestari Yudith Ayu , Dali Seniwati , Muliadi  , Liestianty Deasy 
Published: July 2020

Abstract
Amylase is a hydrolase group enzyme used in many industrial areas which operate on high temperature. Amylase can be yielded from various organisms. The most common producer of Amylase is Bacterium. Bacterium can live in many extreme environment like hot temperature environment. One of the sources of hot water is Jailolo Bay in North Maluku, on that account it requires to conduct the isolation of thermophile amolytic bacteria from the hot water source of Jailolo Bay in North Maluku Moluccas North and test its amylase activity. Water sample used in this research was taken come from the hot water source with temperature of 75°C and 6,1 water pH. This research was done by isolating the bacteria, by packing 1 mL of the water sample into an add-on medium. Then 1 mL microbe culture was disseminated to a jelly medium and incubated for two days at the temperature of 40 °C, 50 °C and 60 °C. The resulting Bacterium colony was then processed qualitatively into the amolytic bacterium test in the jelly medium containing 1% sago extract with Iodium. Isolates yielding wide, transparent zone in each incubation temperature were identified. Identifying the bacteria was conducted with colony morphology test, biochemical test, and the coloration of Gram. The α-amylase enzyme activity test was relied on the amount of reduction sugar (maltose) which was produced by the extract hydrolysis with DNS method using maltose as standard. The result of the research shows that the source of hot water in Jailolo Bay, North Maluku has potency to yield thermophile amolytic bacteria. The amount of isolates bacteria obtained was 68 isolates from the temperatures of 40°C, 50°C and 60°C each resulting 36, 18 and 14 isolates bacteria. Three chosen bacterium isolates (big transparent zone) from each incubation temperature are isolates 51Y222 ( 40 °C), isolates 52B23 ( 50ºC) and 52YA ( 60ºC) which owns each transparent zone of 9,11 cm; 9,13 cm and 9,20 cm. The microscopic characterization result of Gram coloration indicates that those three isolates are included as the positive Gram bacteria and in form of bacillus. Based on the colony morphology observation macroscopically, microscopically and according to the biochemical test result, isolates 51Y222, 52B23 and 52YA represent bacterium of Bacillus sp. Amolytic enzyme activity of 51Y222, 52B23 and 52YA is each 157,75 mU / mL; 124,07 mU / mL and 1315,61 mU / mL
Effectiveness Tamarind to reduction of Pb content in red mussels
Authors: Santi SS , Wahyudi T , Siyam C , Rachmani TPD 
Published: July 2020

Abstract
Red Mussels is a food ingredient that is quite popular in East Java. However, the content of heavy metal (Pb) red mussels is quite high above the threshold that is permitted for human consumption, which is below 1.5 ppm. Therefore, the presence of high Pb levels must be reduction according to the specified threshold. The research was conducted in two steps. The first step, Red mussel’s extraction using Tamarind solution. Tamarind contains organic acids, one of which is citric acid which acts as a metal binding agent so as to reduce the metal content. The second stage of extracting red mussels uses pure citric acid, then the results are compared. The optimum results obtained at the time of extraction and concentration using tamarind was 60 minutes and 25%, the effectiveness of citric acid in tamarind was 98.89% (initial Pb 17.19 ppm to 0.25 ppm) while pure citric acid was 99.97 % (Initial Pb 17,199 ppm to 0,004 ppm).
Ethnomatematics in Majapahit’s Culture: Geometry Concepts and Pedagogy Reviews in the Life of Mlaten Trowulan Villagers
Authors: Budiarto Mega Teguh , Setianingsih Rini , Artiono Rudianto 
Published: July 2020

Abstract
This study examines the elements of culture, especially the manufacture of pottery of Mlaten Trowulan, East Java Indonesia. It can be used to review the mindset of the Majapahit tribe from the point of view about the pottery artisans show how to make make the pottery to the next generation craftsmen. This research is a qualitative research with ethnography method. The results showed that there are 25 types of pottery which has a symmetrical geometric shape. The artisans show how to make the pottery to the elementary school student with some techniques, such as rotating, plating, pushing, and twisting. All techniques have been taught by learning by doing method. The symmetrical pottery model can be obtained from rotating a function f against the x-axis. The function f is obtained from a three-point cubic interpolation with its midpoint as the peak point. In order to develop another pottery model, another transformation function can be used.
Analysis the effect of learning habists and gender the mathematics learning achievement using the multiple linear regression approach
Authors: Fitrianti H , Riyana M 
Published: July 2020

Abstract
The purpose of this study is to analyze the factors of learning habits and gender on the mathematics learning achievement of students using multiple linear regression approaches. This type of research is quantitative with an approach ex post facto. The population used in SMP Negeri 1 Merauke students, class X and XI with a population of 625 students consisting of 322 male students and 303 students. The sample used by the propositional stratified Random Sampling technique was obtained ie 150 samples. The analysis used uses a significance level of 5%. The results obtained are: (1) there is a significant effect of learning habits and student mathematics learning achievements; (2) there is no significant effect of gender on student mathematics learning achievement; (3) there is no simultaneous influence of learning habits and gender on students’ mathematics learning achievement. The results of the analysis using multiple regression approaches indicate learning habits provide a positive and significant influence on learning achievement. Students who have good and regular study habits will see that the lessons received are not so difficult to understand, because of the good readiness beforehand. Whereas for gender there is no significant effect. This is because there has been gender equality applied in school. Equality of conditions for men and women to obtain opportunities and their rights as human beings, to be able to play a role and participate in activities at school. Thus it can be concluded that the factors that influence the mathematics achievement of junior high school students for Merauke City are learning habits. The better and regular student learning habits, the students’ mathematical achievements will increase.
Study of Blending Fly Ash with Potentially Acid Forming Material to Prevent Acid Mine Drainage
Authors: Firman  , Haya A , Alkatiri H 
Published: July 2020

Abstract
Acid Mine Drainage (AMD) is one of environmental concerns of mining activities and need to be prevented. One of AMD prevention method is passive method by blending PAF Material with Non-Acid Forming Material. One of constraint often faced by mining companies is the limitation of NAF material. Other Non-Acid Forming Material that is available and abundant near mine site is fly ash from Mine-Mouth Coal-Fired Power Plant Banjarsari. The Study of usage of fly ash as a blending material with PAF material in order to prevent AMD is deemed necessary. Different blending simulations of varying PAF material size (fine and coarse) and varying fly ash-PAF Material ratio (2:1; 1:1; and 0,5:1 by weight) are made and leachate water from kinetic test is physically and chemically tested. This study result shows that variation in OB-Claystone grain size is not influencing the acidity of leachate water. Blending FA with OB-CS with minimum ratio of 1,12:1 (by weight) is effective to prevent AMD generation. Acid-base equilibrium is met when ratio of mole-transfer between neutralizing mineral (periclase, lime and gypsum) to acid-generating mineral (pyrite) is 1:1 (by weight). The higher ratio of FA in blending, the lower oxidation and alkalinity-production rate. Rate of oxidation of pyrite and alkalinity-production rate is the same at OB-CS and FA blending ratio of 1:1,62 (by weight).
Geochemical composition and morphology study of Major Minerals of Angus Stone from Gamalama Mountain, Ternate Island, Indonesia
Authors: Yanny  , Ibrahim Mohammad Marshus , Abbas Said Hi , Muliadi  , Jaya Asri , Maulana Adi 
Published: July 2020

AbstractThis research is aimed to recognize the chemical composition, type, and main mineral morphology that are consisted in Batu Angus. The analytical methods used are X-ray Fluorescence (XRF), X-ray Diffraction (XRD), Fourier Transform Infra-Red (FTIR), and Scanning Electronic Microscopic (SEM). The result of the research showed that the chemical composition of Angus stone consists of silicone mineral and iron. The kind of silicone mineral is identified as mineral quartz, cristobalite, and tridymite while the iron mineral is identified as maghemite. The silicone mineral morphology has tetragonal, cubic, orthorhombic, hexagonal, and trigonal geometry shapes.
Performance Analysis of Hydrogen Fed Proton Conducting ITSOFC Cogeneration System
Authors: Amir Nizar 
Published: July 2020

Abstract
This paper presents the performance analysis of different cogeneration system based on proton conduction SOFC (pSOFC) as main core system in the intermediate temperature. The cogeneration system such as heat recycle steam generator (HRSG) and micro gas turbine (MGT) also compared. The new design to remove heat from stack also proposed to enhance the overall system efficiency. The results show the pSOFC cogeneration combined with HRSG has higher system and overall efficiency than combined with MGT. However, additional power output is produce when combined with MGT. So the option must be correctly chosen and depend on the customer demands. Finally, with new system design of cogeneration system, it is possible to achieve an overall efficiency greater than 81% and 80% when pSOFC combined with HRSG and MGT, respectively in the intermediate temperature.