bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modern Analogue of Shaly Sand Reservoir on Coastal Plain in Selat Baru, Bengkalis Island, Indonesia
Authors: Yuskar Yuniarti , Choanji Tiggi , Eka Putra Dewandra Bagus , Bastira Shanaz Noveta , Suryadi Adi , Sari Dilla Permata , Harisma  
Published: June 2020

Abstract
Coastal environment is one of main reservoir depositional system in the oil industry and becomes the main challenges in defining its characteristic, especially in lateral correlation. Research conducted in Bengkalis Island which has a unique characteristic of coastal depositional environment that affected by a tidal system related to modern analogue for reservoir characterization. The method used for this research is analysing lithofacies from drilled core data, surface sampling, and lateral measurement from foreshore to the tidal limit. It is confirmed from core data that research area consists of sand, shale, and peat with lamination, cross laminations sedimentary structure and also filled with organism activity, which clustered into eight lithofacies. By integrating the core data with surface sampling and lateral measurement, it is interpreted that facies is changing only in near distance (about 30 – 40 m) with sloping 1 – 2 degrees in the surface, so by defining the same characteristic on lithofacies, correlation can clearly define on a shaly sand reservoir in the tidal coastal environment.
Characteristics of Quaternary Deep Sea Sediment in the Sumba Strait based on Grain Size and LoI (Lost on ignition Analysis)
Authors: Zulhikmah  , Yuskar Yuniarti , Putra Purna Sulastya , Nugroho Septriono Hari , Choanji Tiggi 
Published: June 2020

Abstract
This research was conducted in the Sumba Strait, southwest of Sumba East Nusa Tenggara. The Purpose of this study is to determine the depositional facies characteristics of the Quaternary deep sediment. The sample was taken at a depth of 1858 m by gravity core in board of RV Baruna Jaya VII by the geology team of Ekspedisi Widya Nusantara LIPI 2016. The length of the sample was 246 cm. Sedimentology analysis was conducted to measure grain size distribution, organic material and carbonate content in the core. The characteristics of the sediment were dominated by coarse silt, poorly sorted, symmetrical skewness and mesokurtic kurtosis. Generally, the percentage of carbon and carbonate is 20.09% carbon and 9.67% carbonate; it shows that grain size is very influential on organic material in the sediment. The finer the grain of sediment the higher the organic material, which in the sediment results from the grain size analysis indicates the dominant grain size of the fine (Coarse silt).
Community Based Tourism for the Concept of Village Tourism Facility Development in Papan Island
Authors: Arief Irdinal , Thahir Harifuddin 
Published: June 2020

Abstract
Community based tourism can create employment opportunities for local communities, and reduce poverty, where tourism income is from tourist services to tourists. In the Planning of facilities and infrastructure is needed the concept of development with the location of the local natural environment. It to be developed must be integrated. At the stage of development of tourism facilities, as natural resources and man-made resources are absolutely needed by tourists in their travels in tourist destinations, such as: roads, electricity, water, telecommunications, terminals, bridges and so forth. With the pattern of community-based tourism does not mean that people will run their own tourism business. The level of tourism implementation should be seen as part of integrated development planning that will be carried out in Papan Island of Kadoda Village Talatakoh Subdistrict of Togean Islands, which is designated as the national tourism development and the regional tourism master plan of Tojo Una-Una Regency. One of the strategies is development of marine tourism attraction in Strategic area of National Togean Archipelago, consisting of 50 national tourism destinations. The following spatial concepts that actually include many studies in planning and architecture but this process has included analysis of community-based tourism.
Characterization of Liquid Volatile Matter Rice Husk Using Gas Chromatography
Authors: Ilmawati Wa Ode Sitti , Mashuni Muhammad Jahiding , Kinanti  
Published: June 2020

Abstract
Rice husk is one type of organic waste that has not been used optimally. Rice husks contain cellulose, hemicellulose and lignin, so they are potentially processed as liquids volatile matter (LVM). The purpose of this study was to determine the effect of pyrolysis temperature on the density and chemical composition of rice husk LVM. This study began with the collection of rice husks. Rice husk is dried and then heated with high temperature 400°C, 500°C, and 600°C. The heating temperature is maintained for 15 minutes, respectively. The process of pyrolysis of rice husk produces charcoal, tar, and smoke. Condensed smoke is called rice husk LVM. The density of rice husk LVM at each pyrolysis temperature is different, namely 0.416 g/cm3, 0.714 g/cm3, and 1.139 g/cm3. The rice husk LVM is characterized using gas chromatography. Characterization results showed that the chemical composition of rice husk LVM consisted of ammonia, propanone, acetic acid, hexane, furfural, phenol, etc.
Hybrid Method Analysis of Variance (ANOVA) and Loss Function to Analyzed Optimizing Composition of Fiber Baggase and Fly Ash
Authors: Laome Lilis , Hasbi Muh. 
Published: June 2020

Abstract
Research on the utilization of baggase fiber as a composite material has been done, but still has shortcomings in the composite material brilliance. Therefore, the use of baggase fiber combined with coal ash can be an alternative to make a composite material. The purpose of this research is to know the effect of baggase fiber composition and fly ash composition to tensile stress and bending stress. This paper discusses the application of Analysis of Variance (ANOVA) on composite material data. There are two variables measured are variable of tensile stress and variable of bending stress. The result obtained that there is influence composition of baggase fiber and composition of fly ash at tensile stress and bending stress. Furthermore, further tests using Tukey method showed that the different composition pairs significantly were 10% -30%, 10% -40% and 20% -40% in both compositions of the two variables studied. In the determination of loss function with Signal-to-Noise (SN) Ratio with larger-is-the-better criteria, the composition of 40% baggase fiber, 10% fly ash composition and 50% matrix can produce optimal tensile and bending strength.
Fuzzy Analysis to Determine Potential Catching Areas of Skipjack Tuna on Southeast Sulawesi Waters
Authors: Ningrum Ika Purwanti , Sari Jayanti Yusmah , Saputra Rizal Adi , Sutardi  , Yushar Ismail 
Published: June 2020

Abstract
Southeast Sulawesi is one of the catching fisheries bases in the Eastern Indonesia Region which deals directly with the Banda Sea. Skipjack Tuna (Katsuwonus pelamis) is classified as an important economic pelagic fish resource and is one of the export commodities. The existence of skipjack tuna is certainly influenced by the condition of the ocean. The parameters used in the analysis of the determination of skipjack fish catches are Sea Surface Temperature, the distribution of chlorophyll-a and catches. The purpose of this study was to analyze the catching area of skipjack fish around the waters of the Southeast Sulawesi. To determine of skipjack tuna fishing area is supported by Fuzzy Mamdani method. The results showed that the catching area of skipjack fish on the peak catching season in the waters around Southeast Sulawesi May was in position 03008’30.2 S / 122025’17.4 E to 03009’48.8 S / 122042’32.7 E. In June the potential area is at point 03009’47.4 S / 1220 41’02.3 E and on July potential area at point 03005’50.8 S / 122041’16.3 E.
Composition Chemistry And Distribution to Quality of Essential Oil From Rhizome E.elatior and E.calophyris By Gas Chromatography-Mass Spectrometry (GC-MS)
Authors: Aswan Muhammad , Arafah Nur , Sahidin I. , Imran  , Suryani  , Ngkoimani La Ode 
Published: June 2020

Abstract
The composition chemistry and distribution of essential oil from the rhizome of two plants family Zingiberaceae is Etlingera species include E.elatior and E.calophyris from South East Sulawesi. The aim of this study is to determine the chemical composition of rhizomes two plants and compared the contain essential oils of the rhizome. The rhizome of the plants was extracted by hydrodistillation and analyzed was by Gas Chromatography-Mass Spectrometry (GC-MS). The essential oils from rhizome E.elatior and E.calophyris had a different compound among, with 25 compounds for E.elatior and 27 compounds identified for E.calphyris. The rhizome of E.elatior had the highest yield essential oils are dodecanal (36,09 %) and Dodecanoic acid (15, 54 %) and rhizome of E.calophyris is n-Decanal (34, 09 %) and Dodecanoic acid (14,5 %) into the mayor compound. While the compound minor for E.elatior had the highest 2-Undecanon (0,61%) and 2-Tridicanon (0,51 %) and E.calophyris is (-) Caryophyllene oxide (0,95 %) and 2-Undecanon (0,71%).
Design of Prototype System for Monitoring Air Quality for Smart City Implementation
Authors: Koedoes Yuni Aryani , Jie Samuel , Anshari Nur Muh. Nadzirin , Bunyamin  , Astari Alwan 
Published: June 2020

Abstract
Air pollution can be caused by natural sources and human activity. Now many say the polluted air around us. Carbon monoxide (CO) and carbon dioxide (CO2) is a parameter for determining the quality of clean air and polluted. If levels of these two substances excessive inhaled by humans, can be detrimental to health. By using the Arduino Mega 2560, air quality monitoring system in this study using LM35 sensor to determine the temperature of the air, MQ-7 sensor to determine the levels of CO and sensor MQ-135 to determine the levels of CO2 that is in the room. Sensor MQ-7 will be equipped with red and green LED indicator as the level of air quality is polluted or not polluted. If the levels of CO < 5 ppm, the green LED turns on and vice versa CO > 5 ppm, the red LED lights up. Likewise, CO2 levels <350 ppm, the green LED turns on and vice versa CO> 350 ppm, the red LED lights up. Research and simulation results show that the system works well. In the application of smart city, one of the important parameters is the monitoring system, in this research will be designed air quality monitoring system for the application of smart city.
Dynamic Behavior of Human Tympanic Membrane Perforation Using Finite Element Method
Authors: Hidayat  , Sudarsono  , Othman Rozaini 
Published: June 2020

Abstract
Human tympanic membrane also known as an eardrum is a thin membrane that separtes the outer ear and middle ear. The tympanic membrance perforation can cause longer lasting hearing loss. The purpose of this research is to simulate the dynamic behavior of tympanic membrane perforation using finite element method. In this paper, two types analysis model, namely normal tympanic membrane and tympanic membrane perforation were developed. Firstly, the geometrics model of human tympanic membrane was generated by CAD Software (Solidworks) using physical properties reported by other researchers. Then, eigenvalue analysis was carried out to simulate the dynamic behavior of two types of human tympanic membrane. As for the boundary conditions of human tympanic membrane, torsional springs were used for the rotational motion around one axis of the local coordinate frame on the boundary of tympanic membrane. Finally, the simulation of dynamic behavior of two types of tympanic membrane were compared.
Effect of Current Density on Hardness of Low Carbon Steel Electroplated by Copper, Nickel and Copper-Nickel
Authors: Sudarsono  , Aminur  , Nurjannah Irma , Hidayat  , Othman Rozaini 
Published: June 2020

Abstract
Coating process of metal surface undergoes rapid development, especially in electroplating method. This study aims to investigate effect of current density on hardness of low carbon steel plates electroplated by copper, nickel and copper-nickel. Low carbon steel plate coated with copper, nickel and copper-nickel using electroplating process with current variation (6, 9, 12 A for copper coating), (2.5, 3.5, 5 for nickel coating) and (2.5, 3.5, 5, 6, 9, 12 A for copper-nickel coating). Electroplating time for the three processes is 20 minutes in 5-liter solution at temperature range of 55-60°C. The electroplated steel plates are characterized with micro vickers hardness test. The results of this study indicated that the highest hardness is 290 kg/mm2 for nickel coating at current density of 5 A. Contrary, the lowest hardness is 111 kg/mm2 in copper coating at current density of 12 A, while the hardness for copper-nickel coating is 252 kg/mm2 at current densities of 12 A and 5 A.
Analysis of Islamic Center Planning with Ecological Architecture Approach in Kendari City
Authors: Ratna Adelila Haksika Fisika , Nurjannah Irma 
Published: June 2020

Abstract
Indonesian religion plays an important role in people’s lives, based on Indonesian ideology, Pancasila. Kendari City is one of the cities in Indonesia, which majorities are Muslim. Year by year population of Muslim in Kendari City have increased, but the increase is not directly proportional with the existing means of worship, for example like Islamic Center. Basic from status, Islamic Center in Kendari City consists of two types, they are Islamic Private Center and Government Islamic Center. The Government Islamic Centre, located in Abdullah Silondae street, but the building has been destroyed and turn into Head Office of PT Bank Sultra. Therefore, it is necessary to plan a new Islamic Center building for the people in Kendari. The Islamic Center planning was designed by applying the Ecological Architecture approach. The method used is descriptive analysis carried out by collecting data, then analyzed based on the theory of ecological architecture. The results of the analysis are micro and macro site processing which has minimal impact with the environment, and the application of a rectangle as a form of building and the use of sloping roofs to cover buildings. This form can maximize the lighting and the building’s effect on the thermal comfort of the building user.
Application of Under-Frequency Relay (UFR) in Load Shedding Scheme for System Stability (A Case Study on PT. PLN Kendari)
Authors: Tachrir  , Jie Samuel , Bunyamin  , Djohar Abdul 
Published: June 2020

Abstract
A reliable electric power system must maintain its operation in stable conditions with the support of various protection system during normal operation or when a fault occurs. To minimize the frequency of blackouts in the system due to interference, transient conditions, or the increased load, this study simulated the load shedding scheme using under-frequency relays (UFR). The analysis was done in ETAP 12.6.0 software using the Transient Stability Analysis feature. In this simulation, discontinuation occurs in the CB (Circuit Breaker) generator which causes the generator to escape from the system in two conditions, namely Peak Load Time (PLT) and Off-Peak Load Time (OPLT). The study simulated scenarios where circuit breakers (CB) tripped due to a fault, which causing a power plant to be disconnected from the grid. The scenarios were simulated in two conditions, during the peak load and off-peak load. The results show that during the peak load, the simulated Load Shedding Scheme 1 to 3 was occurred on the frequency of 49.3918 Hz, 48.72 Hz, and 48.0195 Hz, respectively. The respective disconnected loads on Scheme 1 to 3 were 4.529 MW, 41.84MW, and 59,072 MW while the recovery times were 2.432 s, 0.081 s, and 0.626 s, respectively Meanwhile, in the off-peak load, the UFR tripped at the frequency of 49.3958 Hz, 48.5855 Hz, and 47.75 Hz, the disconnected loads were 3.652 MW, 30.627 MW, and 43.93 MW, and the recovery time were 2.934 s, 0.588 s, and 0.592 s for Load Shedding Scheme 1 to 3, respectively.
Space utilization optimization of new campus of Halu Oleo University
Authors: Hasan La Ode Amrul , Hartono Yudhi Dwi , Saleh Arif , Bahri Alim 
Published: June 2020

Abstract
The New Campus of Halu Oleo University (UHO) is one of the state universities included in the term of the largest university in Eastern Indonesia with an area of more than 252 Ha. Located in the central government development area, UHO’s New Campus has become an attractive campus, shown by the increasing number of prospective students from year to year. This increasing number causes the university to provide educating facilities as the main need. The existing buildings and future development projects have not considered the concept of good spatial planning. This threatens the availability of land, especially the availability of open space and also affects the arrangement of related elements such as vehicle circulation, building utilities, drainage systems and mechanical-electrical. The purpose of this research is to provide a recommendation about the design of the UHO campus spatial layout which optimizes 60% open space availability proportionally with a more directed structuring concept. This research employed a qualitative method and data was collected through questionnaires and observations. The results indicate that the current space utilization is not well arranged, therefore affects other elements. Through the concept of cluster eco, campus area will be more organized.
Evaluation of Bottom Ash Composition on Modified Hollow Brick Design with Sago Husk as Filler
Authors: Ornam Kurniati , Kimsan Masykur , Ngkoimani La Ode , Amri Siti Belinda , Santi  , Amsyar Syafrianto 
Published: June 2020

Abstract
Improvement of hollow brick models demands profound analysis in terms of their behavior on mechanical properties as some shape variations provide different characteristics on stress concentration. Additional waste filler i.e. sago husk and utilization of bottom ash are expected to deliver better results based on strength, weight and economic factor. This paper aims to analyze experimentally and analytically those 7 shapes variations of modified hollow bricks design with additional admixtures which consists 1,1% of sago husk and 4 composition of bottom ash i.e. 0%; 10%; 20%; and 25%. Some works were conducted in laboratory, and followed by mathematical stress analysis of hollow shape characteristics. The results show that 10 – 20% bottom ash composition share maximum value of compressive strength, with model 1 is the greatest (17.8 Mpa). Mathematical analysis provides similar results as well, where the stress concentration of model 1 was not amplified with subsequent hollow position. In conclusion, all model still appropriate to be utilized for housing, especially in element selection for lightweight bricks that meet the requirements for strength.
Indonesian License Plate Detection Using Morphological Operation
Authors: Pasrun Y P , Muchtar M , Basyarah A N , Noorhasanah  
Published: June 2020

Abstract
Technological developments have enabled the use of vehicle number plate recognition in various fields such as parking systems, e-toll payments, handling motor vehicle theft cases, traffic violations and so on. Vehicle number plate characteristics in each country have characteristics that are not the same. Each country has a standard numbering system in its writing method, colour, language and size of the license plate, so that to take the research standards for license plate numbers from other countries is not effective. Special research is needed in accordance with the format of the number plate used by the country, in this case Indonesia. This research applies simple method, morphological operations in detecting vehicle plates in Indonesia. Morphological results will be segmented to get the image of the plate character separately. The test results show that the method applied can provide a maximum accuracy of up to 100% on taking plate images with a distance of 1.5 meters.
Tribological behavior of borocarburized layer on low-carbon steel treated by double glow plasma surface alloying
Authors: Yang Zhengang , Liang Wenping , Miao Qiang , Ding Zheng , Zuo Shiwei 
Published: June 2020

Abstract
In this paper, the borocarburized layer was fabricated on the surface of low-carbon steel via double glow treatment to enhance the wear resistance. Benefited by the gradient structure of an outermost boride layer and inner carburized layer, the bonding strength of the protective coating was improved. The novel design improved the mechanical properties at the coating-substrate interface and extended the service life of the coating. The microstructure and composition of borocarburized layer were analyzed by SEM, XRD, XPS. The tribological properties of substrate and borocarburized layer under dry sliding against ZrO2 ball were investigated. The results indicated that borocarburized layer consisted of a 38 μm boride layer with main phase of Fe2B and a 75 μm carburized layer with main phase of Fe5C3. The microhardness of borocarburized layer emerged in gradient distribution attributed to the double glow plasma surface alloying technique, and the maximum value was around 1700 HV. In addition, the major wear mechanisms of low carbon steel were fatigue and abrasive wear, which transformed to abrasive and adhesive wear with the load increased. The wear mechanisms of borocarburized layer were abrasive and adhesive wear. During wear process, borocarburized layer with high hardness against ZrO2 ball due to the decreased real contact areas. Therefore, the borocarburized layer fabricated on low carbon steel enhanced the wear resistance effectively.
Salinity affects pH and lead availability in two mangrove plant species
Authors: Cabañas-Mendoza María del Refugio , Santamaría Jorge M , Sauri-Duch Enrique , Escobedo-GraciaMedrano Rosa María , Andrade José Luis 
Published: June 2020

Abstract
Some tropical coastal areas that include mangroves are highly polluted by heavy metals, where lead (Pb) is prevalent. Few studies document how environment affects soil physicochemical characteristics and the availability of heavy metals. This study evaluated how different salt concentrations influenced the accumulation of Pb in plants of Avicennia germinans and Laguncularia racemosa and how salinity modified the substrate pH. Under unsalted conditions, Pb accumulation occurred continuously, mainly in L. racemosa, which was more tolerant to its toxic effects. Salt led to a decreased Pb uptake by the roots and an increase in the substrate pH. In addition, salinity also caused an increase in the translocation of Pb to the leaves. Because L. racemosa was tolerant to Pb, this species could be a better candidate for possible remediation and restoration programs in mangrove areas.
Nematic liquid crystal/dimethylsulphoxide mixture based tuning condenser
Authors: Parveen Ariba , Varshney Depanshu , Prakash Jai 
Published: June 2020

Abstract
Here, we demonstrate experimentally the existence of temporally variable dielectric behavior of a nematic liquid crystal (NLC), the most widely used liquid crystal (LC) phase among all LCs materials, by mixing dimethylsulphoxide (DMSO) into former. The intermolecular interactions and nanosegregation of the molecular LC structures have influenced their self-assembly by mixing DMSO into it. We mainly examined the dielectric parameters such as dielectric permittivity, dielectric loss factor, and absorption/energy dissipation and observed that the NLC/DMSO mixture shows a nearly dielectric-conductor (D-C) transition as time passes. The presence of DMSO in this analysis was confirmed by Fourier transform infrared spectroscopy while time-dependent dielectric studies were carried out using dielectric spectroscopic techniques. The promising idea of showing D-C transition is truly proven that may open the possibilities for real-time variable and supercapacitors.