bluuebunny/crossref_metadata_2025_split huggingface dataset:
Using the BIMCO Shipping KPI Database to identify costs and benefits of e-navigation solutions
Authors: Nesheim D A , Fjørtoft K E 
Published: November 2019

Abstract
In the RCN-funded research project SESAME Solution II, funded by the Norwegian Research Council under the MarOff programme, a key aspect is to develop a cost benefit assessment framework. This framework will be used to assess the solutions related to e-navigation and automatic reporting, to be developed by the project.
Some benefits are only visible on a larger or aggregated scale. This is particularly true for benefits which concern the reduction of unwanted incidents (e.g. accidents, deficiencies and detentions). Instead of focusing on case by case, historical trending on industrial or segment level provides a better picture of the actual benefit of certain solutions and measures. For this we need access to trustworthy sources. In the SESAME Solution II project, we have gained access to BIMCO’s Shipping KPI Standard database. BIMCO is the world’s largest international shipping association, with around 2100 members. Membership includes shipowners, operators, managers, brokers and agents. This database contains performance data related to ship management from 2011 with thousands of ships reporting KPIs (Key Performance Indicators on a quarterly basis. The database also allows for selections on the basis of ship type, trade, etc.
This paper explores the challenges and opportunities related to such use of statistics and aggregations when assessing the potential benefits (and costs) related to e-navigation and automatic reporting. Such challenges include the mapping of KPIs to the implementation of specific solutions/measures. As an example, aggregated KPIs may show the effect of certain IMO regulations such as the IMO DCS (Data Collection System: Monitoring, validating and reporting fuel consumption and CO2-emissions from international shipping). Other challenges include proving correlation as well as an overview of external factors which may skew the conclusions.
The suggested approach will prove adaptable to similar sources of data such as THETIS, APCIS and others.
Inference Model of Collision Risk Index based on Artificial Neural Network using Ship Near-Collision Data
Authors: Namgung Ho , Jeong Jung Sik , Kim Joo-sung , Kim Kwang-Il 
Published: November 2019

Abstract
The judgement of Collision Risk Index (CRI) is important for safe navigation. The autonomous ship need to analyze and decide taking an action for collision avoidance. Recently, it has been possible of navigator to obtain navigation information in real time. By using such collected navigation information, many researchers have proposed inference models which are based on the fuzzy theory in order that they can make decision for safety of navigation. The conventional inference model, however, have several limitations: (i) establish a membership function with Distance of the Closest Point of Approach (DCPA) and Time to the Closest Point of Approach (TCPA) without any considerations for other ship dynamic parameters; and (ii) rely on values of simulation result using virtual navigation information. In order to overcome these limitations, we introduces the inference model with Artificial Neural Network (ANN) by learning input vector, i.e., own ship’s speed, target ship’s speed, own ship’s course, target ship’s course, bearing between own ship and target ship, distance between own ship and target ship, and target vector. Taking an actual near-collision situation into account, the proposed model can express various CRI, keeping the desirable TCPA and distance to take a proper action for collision avoidance. The proposed method conducts better decision-making than conventional ones.
DBSCAN algorithm: twitter text clustering of trend topic pilkada pekanbaru
Authors: Mustakim  , Nurul Gayatri Indah Reza , Novita Rice , Kharisma Oktaf Brillian , Vebrianto Rian , Sanjaya Suwanto , Hasbullah  , Andriani Tuti , Sari Wardani Purnama , Novita Yulia , Rahim Robbi 
Published: November 2019

Abstract
Social media is one of the most common sources used to communicate, such as Twitter. Every tweet on Twitter contains data such as text which when collected can be processed into information. Data processed from Twitter tweet will create a trend which can be used for information such as in education, economics, politics, etc. This then created the concept of text mining. Text mining techniques are needed to find an interesting pattern in search of trends based on Twitter text with topics related to Pilkada Pekanbaru 2017. This research is intended to cluster Twitter text data using Density-Based Spatial Clustering of Application with Noise (DBSCAN) algorithm. This research was conducted with several experiments using different Eps and MinPts parameters for 2,184 text data which has been through several stages, such as cleaning, duplication removal, pre-processing like stemming and stopwords. Based on the highest average of Silhouette Index, Eps 0.1 and MinPts 10 with SI = 0.413 were chosen as paramaters, thus forming 31 clusters. According to the frequency of word occurrences in the cluster, the highest are “kpu”, followed by “firdaus”, “kota”, “pasang”, and “ayat”. As can be seen that the candidate pairs most often appear on cluster results are Firdaus-Ayat, and based on the results of Pilkada 2017, Firdaus-Ayat was chosen as Mayor and Vice Mayor of Pekanbaru.
Resistant starch content, pasting properties, and morphology of taro (Colocasia esculenta L. Schott) flour modified by heat-moisture treatment
Authors: Santoso Daniel , Wardana Ata Aditya , Surono Ingrid S. 
Published: November 2019

Abstract
Taro flour was modified by heat-moisture treatment (HMT) in various times and aimed to evaluate its resistant starch content, pasting properties, and morphology. The moisture content of taro flour was adjusted into 25% before heating at 110°C for 4, 6 and 8 h to produce modified flour. HMT of 8 h and 6 h exhibited the similar amount of resistant starch compared to native flour, while HMT of 4 h resulted in significantly lower RS content. The modification process increased all of pasting parameters: peak, trough, breakdown, final viscosity, setback, peak time, and pasting temperature. No sign of fractures were exhibited on the surface of native taro flour granules visualized in SEM micrograph. While modified taro flour resulted in some cracks which might be due to partially gelatinized around the surface by heat and moisture treatment.
Resistant starch content, pasting properties, and structure of modified taro (Colocasia esculenta L. Schott) starch granule by steam cooking
Authors: Wardana Ata Aditya , Surono Ingrid S. , Hendry  
Published: November 2019

Abstract
Effect of steam cooking (SC) on resistant starch (RS) content, pasting properties, and structure of modified taro starch granule was studied. Modified starch was prepared by two cycles of autoclaving followed by cooling at 4, and -20°C. The RS content was significantly higher (p < 0.05) after SC treatment as compared with native taro starch. All modified starches tend to be more stable to SC and heat- and shear-resistant of pasting characteristic which was confirmed by RVA viscograme. Moreover, the structure of modified taro starch granules showed remarkable different as compared to native as shown by the irregular and fracture of the structure.
Fracture Analysis of Uranium-Bearing Rock in Eko-Remaja Exploration Tunnel at Depth 50-200 Meters, Kalan, West Kalimantan
Authors: Muhammad Adi Gunawan , Saputra Roni Cahya , Syaeful Heri 
Published: November 2019

Abstract
Remaja Sector is one of the potential sectors of U mineralization at Kalan Area, West Kalimantan. Host rock of the mineralization is metasiltstone and schistosed metapelite. The 618 meters long Eko-Remaja Exploration Tunnel was built in 1980 to understand the character of uranium ore in this sector. The U mineralization in Kalan, West Kalimantan is influenced by the host rock type and fractures formed by regional tectonic. Regionally, ductile and brittle deformation occurs at Kalan. The ductile deformation observed from N 70o E fold plunging 30o NE that generate schistocity plane dipping 70-80o relatively to the north. First brittle deformation resulting open-mode fractures and schistocity planes that later filled by U-rich solution forming U veins, veinlets and breccia mineralization. Later, brittle deformation forming fractures that filled with calcite-gypsum solution afterwards, forming centimetric-desimetric vein and veinlet cutting the U vein. The purpose of this study is to determine the characteristics and main structure that control the U mineralization in the tunnel. The method is by collecting data of fracture such as joints and fault planes, schistosity planes (S1), and bedding plane (S0) together with its cross-cutting relationship at depth 50 - 200 meter from the tunnel mouth which at this interval representing the presence of mineralization in the Remaja Sector. The data then plotted and analyzed on upper hemisphere stereographic projection. Fracture analysis conducted to understand the families of fractures developed and the force direction resulting fractures the tunnel. From the analysis, the mineralization of U in the tunnel controlled by N 280o E fractures that relatively parallel to the schistocity plane as vein and breccia mineralization and analytical fold axis on Eko-Remaja Tunnel is N 73 E° / 30 tilted to E-NE. Joints in the tunnel mainly affected by faults that formed by couple force.
Burial History, Thermal Maturation, and Source Rock Evaluation of Ngimbang Formation in East Java Basin
Authors: Pradono Aditya , Rakasiwi Dadali 
Published: November 2019

Abstract
East Java Basin is the back-arc basin and it was the result of collision between the Indian Plate and Sunda Microplate. East Java Basin was formed in Early Tertiary subduction and it is related on the process in Java. In the exploration of Indonesian Basin over years, East Java is one of the successful hydrocarbon producers in Indonesia. In East Java Basin especially Rembang Zone, The Middle Eocene Ngimbang Formation is known as source rock materials. It consists of sandstone, siltstone, limestone, shale, and coal seams. The objective of this research is to determine the hydrocarbon source rock potential based on geochemical analyses and thermal maturation by making basin model. The main target source rock formation is Middle Eocene Ngimbang Formation. Log, seismic, and geochemical sample are the primary data in this research. These methods help the sense of exploring the new hydrocarbon potential. According to geochemical analyses, the source rock potential within TOC value in this area is good – very good. Fine sediments of Middle Eocene Ngimbang Formation tend to produce oil and gas originated from kerogen types II/III. Furthermore, the migration pathway started from south to north. Generation, migration, accumulation, and preservation occurred in Early Miocene.
Magmatic affinities and evolution of Mount Telaga Rano, Mount Sahu and Mount Onu, North Maluku: analyses of phenocrysts chemical composition
Authors: Arifa Adzkia Noerma , Sucipta I Gusti Bagus Eddy 
Published: November 2019

Abstract
Mount Talaga Rano, Mount Sahu and Mount Onu are volcanoes in Telaga Rano volcanic complex, North Maluku. Lava of Mount Telaga Rano showed andesitic composition with magmatic temperature of 920°C-1170°C, contains plagioclase (An36-85), enstatite, augite, pigeonite, magnetite, ulvospinel and olivine (Fo64-73) phenocrysts in the groundmass of microliths of plagioclase, volcanic glass, opaque minerals and pyroxene. Lava of Mount Sahu showed the andesitic and basaltic composition. The andesitic magma has temperature in the range between 946°C and 1007°C, whereas the basaltic magma has temperature in the range between 1192°C and 1330°C. The andesitic lava of Mount Sahu has plagioclase (An29-67), enstatite, augite, magnetite and ulvospinel phenocrysts in the groundmass of microliths of plagioclase, volcanic glass, opaque minerals and pyroxene, whereas the basaltic lava contains augite, pigeonite, plagioclase (An30-91), olivine (Fo56-77) and magnetite in the groundmass of microliths of plagioclase, volcanic glass pyroxene and opaque minerals. Moreover, lava of Mount Onu showed the andesite composition with magmatic temperature of 970°C-1090°C, contains plagioclase (An25-89), enstatite, a small amount of ferrosilite, augite, pigeonite, magnetite, ulvospinel and olivine (Fo51-72) phenocrysts in the groundmass of microliths of plagioclase, volcanic glass, opaque minerals and pyroxene. The chemical composition of olivine, pyroxene and plagioclase phenocrysts have been used to identify the magmatic affinities and evolution of those volcanoes. Clinopyroxene phenocrysts of the lavas show quadrilateral component variations which are characterized by low Cr, Al and Ti contents. The pyroxene data indicate that the magmas from those volcanoes have magmatic affinities with calc-alkaline to transitional series. Furthermore, we suspected that there was iron enrichment during the magma evolution. Based on the mineralogical identification of phenocrysts, magma evolution within each magma was controlled by fractional crystallization, associated with magma mixing. The more primitive magma injection greatly affected the composition of the magma and it could turn into more basaltic composition.
Diversity Of Benthic Foraminifera Of Core ‘A’ As A Marine Environment Indicator In The Waters Of Jepara, Central Java
Authors: Kusuma Dwi Nugraha Wira , Elfitra Dhanu , Lia  , Winantris  , Aswad Siti Mulia Nurul 
Published: November 2019

Abstract
The Research area is located on waters of Jepara, Central java. The sediment samples for this research were taken from core sample A with 65 cm lengths at coordinate of S 05°55’18.66” and E110°42’34.55”. There are 12 sediment samples used for this research with 5 cm of length interval for each sample. The objective of this research is to find out the environmental conditions around waters of Jepara based on the diversity index. Hydrogen peroxide method is used to process the sediment sample that contain foraminifera. Quantitative analysis of foraminifera was performed on 1gram dry sample. Results of Shannon-Wienner index to find the diversity ranges from 0.00282 to 0.01138. That result shows a low diversity index, it can be concluded that the conditions of the marine environment around waters of Jepara in the Core A has a low productivity, high ecological pressure, and has a disturbed ecosystem.
Geological Aspect and Hydrocarbon Potential in West Timor
Authors: Wahyudiono J , Novelyarisyanti N 
Published: November 2019

AbstractGeological condition of the West Timor is originated from the Australian Continent Terrane, Banda Arc Terrane and local deposited rocks. The geology of the study area specifically is divided into Banda Terrane units, Australian Passive Margin Sequence, Gondwana Sequence, Post-Orogenic Sequence, Syn-Orogenic Sequences and Bobonaro Clay Complex. This study aims to analyze the geology and hydrocarbon potential includes the source rock, reservoir rock and seal rock in the West Timor area. The Oligocene-Miocene Mutis Complex beginning the collision between the Asian Continent and the Australian Continent. In this study, it was shown that the highest collision activity occurred at the end of the Miocene - Early Pliocene and continued to recent. Outcrop samples were collected and GC-MS analyses performed in the laboratory for source rocks. The result shows that the main source rocks found was shale of the Aitutu Formation (Triassic) and shale from the Wailuli Formation (Early Jurassic) with Ro>0.7, they are indicating mature souce rocks. The source rocks are thought to be generated in a shallow marine environment and low energy condition with a mixture of terrestrial material. Halobia fossil was found out on the outcrop, which is play as marker fossil of the Triassic age. A reservoir rock is the sandstone from Oebaat Formation. Oebaat Formation consists of interbedded grainstone-wackestone. Belemnite fossil was found on the outcrops, which is marker as a fossil from Jurassic age. The secondary reservoir is a limestone of the Nakfunu Formation (Lower Cretaceous). The reservoir is thought to be generated in a high-density turbidity condition in shallow marine environment. Shale from Wailuli Formation (Early Jurassic) can be a potential seal rock.
Geology Controls Grade Variance at Grasberg Cu-Au Porphyry Deposit, Papua-Indonesia
Authors: Sirait J , Prasetyo L C , Prasetiyo N 
Published: November 2019

Abstract
The Grasberg mining district is located in the core of the highlands of West New Guinea island, in the central ranges of the Papua Province of Indonesia. The collision between Australia Plate and Pacific Plate on Late Miocene generate NW-SE compressional structures orientation that produced reactivation of NE striking dilation to control the multiple series intrusion of host to Cu-Au porphyry deposit (Sapiie & Cloos, 2004). The oldest of Dalam Intrusion characterized by andesitic rock texture, phyllic to potassic alteration, low-moderate Cu-Au grade (0.25<EqCu<1). It is intruded by Main Grasberg Intrusion (MGI) with potassic alteration dominantly, quartz monzodioritic, high Cu-Au grade (EqCu>1). The latest Kali Intrusion characterized by propylitic to potassic alteration, quartz monzodioritic, dominant barren with EqCu is below the cut-of-grade (EqCu <0.25). The forecast block model is built in quarterly basis based on technical sampling assay method combination between diamond drill core and blasthole cutting samples. The actual grade model develop in daily basis following incremental blasthole cutting samples and be used for the ore reconciliation in monthly basis. The Cu-Au grade variance can be a loss and gain comparing to the forecast block model up to +/-30%. Focused on the negative variance or grade loss within pit radial sector 300°-330° at Dalam Intrusion and Southeast Kali host to phyllic-potassic alteration, and positive variance or grade gain observed dominantly along contact intrusion host to propylitic-potassic alteration. The veinlet relationships observed early vein bearing Cu-sulfide in NE direction intensively cut by SE and NS veins that filled by barren quartz-anhydrite±gypsum and quartz-sericite-pyrite as the latest hydrothermal fluid and affected on grade variance results. The spatial data distribution also influenced on grade variance model related to the alteration and mineralization style within the Grasberg Cu-Au porphyry deposit.
Application of Geostatistics for Cleat Data Validation in Sungai Lilin, Musi Banyuasin Region, South Sumatra
Authors: Jati Stevanus Nalendra , Idarwati  , Putra Ildo M. , Nursiwan FadlanAtmaja 
Published: November 2019

Abstract
Cleat on coal seam is a slope stability controller, as well as permeability and porosity for fluidal flows. It also has become an interesting issue on coal mining, nevertheless the finite quantitative data. As a matter of facts, there is actually some available data about cleat as attributes, but this study only objecting on the orientation, cleat spacing, and cleat aperture. Cleat attributes measurement through field observation at two coalfields;Baturona and PMC in the area of Sungai Lilin, MusiBanyuasin Region. Next, those 667 faces and butt cleats were measured from 8 scanlines being analyzed using geostatistic methods. The purpose of geostatisticanalysis in this study is to see the relation between variables (cleat attributes) to evaluate data quantitatively until the normal distribution is obtained. The data filter was done as a treatment until valid data is reached through the boxplot model. Early boxplot result that almost entirely had outliers data in each seam. In fact, it is commonly seen some extreme outlier data. This suggests that outlier data filter is treated as a treatment until a normal distribution system is achieved on each cleat attribute. Identification of cleat outliers has been affected by mining activity, or due to weathering processes in the coal seams that have been exposed.
Public services optimizing through the communication and information technology application of local governments as an effort to form environmentally friendly smart city branding
Authors: Nugraha Aat Ruchiat , Subekti Priyo , Romli Rosnandar , Novianti Evi 
Published: November 2019

Abstract
The dynamics and rapid development of technology growth become one of the reasons why the individual and organization conduct the behavior change in communicate either verbal and written. Communication behavior projection in the community will be more change rapidly along with instant digital technology. Therefore, nowadays the communication situation existence for an organization has become the spearheaded in fulfilling the public information services which demand openness, equality, and transparency in the process of organizational performance. As part of an organization and in fulfilling Smart City declaration, Bandung City government has conducted various breakthroughs that have been quite intense in the process of digitizing public services which environmentally friendly since 2012 in the era of Mayor Ridwan Kamil’s leadership for the community. The public service applications based on communication and information technology in Bandung City Government include Smart City and E-Government Applications such as e-Punten which are applications from the Department of Population and Civil Registration, Sabilulungan, Hayu!, and e-Remuneration Performance (e -RK). This public service application is an application that can significantly improve the level of government transparency in its performance. The research method is based on the analysis of information contained in the printed mass media of Pikiran Rakyat newspaper in 2017. The results show that digital communication is a method of communication and a commitment of the Bandung City Government in improving public services to be easy, fast and accountable for the community and related parties. Conclusions show that public services and the delivery of information developed through digital communication by the Bandung City Government become more integrated, monitored, effective, and efficient for the community.
Expert System to Diagnosing Heart Attack Disease Using Certainty Factor Method
Authors: Iqbal Muhammad , Fatia Nurul , Surya Sara , Susilawati Evi , Parwito  , Azharman Zefri , Moelyaningrum Anita Dewi , Wikansari Rinandita , Nugraha Andri , Maifizar Arfriani , Mukarromah Nur , Hasibuan Abdurrozzaq , Kurnia Dian Ade , Sudarsana I Ketut 
Published: November 2019

Abstract
Coronary Heart Disease is one of many diseases that cause death and still being a health problem for both developed and developing countries. It is estimated to double in the next two decades, making it the biggest leading cause of death in 2020. The causes of coronary heart disease contain age and sex, with the incidence of males is more than in females but the incidence of females will increase after menopause (the end of the menstrual cycle) around the age of 50 years. This is due to estrogen (steroid compounds) have a protective effect on the onset of atherosclerosis. In this study the author wants to create a system that can detect heart disease by users before ensuring himself to the doctor to diagnose heart disease which is very dangerous. The system that the author will design used the certainty factor method to provide an assessment of the symptoms of user diagnosis. The application was designed with the desktop-based visual studio software assistance that is easy to use by everyone because it is familiar with the windows display design.