bluuebunny/crossref_metadata_2025_split huggingface dataset:
The potential use of satellite gravity data for oil prospecting in Tanimbar Basin, Eastern Indonesia
Authors: Yanis M , Marwan  
Published: December 2019

Abstract
One way to increase oil and gas production in Indonesia is through the geophysical study for new deposits in Basins frontier, i.e., Tanimbar basin in Province of Maluku, Eastern of Indonesia. The Tanimbar basin is located in an area known as the Outer Banda Arc. Gravity is a usually geophysical method used for the sedimentary basin. But for the regional scale, the method requires an expensive cost and long time-consuming. In this research, we use the satellite gravity data provided by Scripps Institution of Oceanography, University of California San Diego. This data has a low resolution of 1.5 km for 1 pixel and also free access. The satellite data will be compared with the gravity ground survey. The data was acquired by the University of London and Bandung Institute of Technology in 1987. The gravity satellite can show a more contrasting of geological structure compared to the ground survey, as well as syncline and anticline; the anomaly is indicated by the relatively high Bouguer data (3.5 to 25 mGal). The high anomaly is also influenced by tectonic activity from inner and Outer Banda Arc that exists in eastern Indonesia. The sub-sedimentary basin is represented by the low Bouguer anomalies (-40 to -25 mGal) that correlated well to ground survey data. Based on the result, it can be concluded; the satellite gravity is potentially used for delineating the sedimentary basin in Tanimbar Island.
The 2D resistivity modelling on north sumatran fault structure by using magnetotelluric data
Authors: Rizal M , Ismail N , Yanis M , Muzakir  , Surbakti M S 
Published: December 2019

Abstract
Aceh is the region that some parts of the Sumatran Fault System (GSF) pass through. The existence of faults has implications for earthquake events. To understand the impact of seismic activities that occur along the fault, it is necessary to do fault mapping and geometry modelling. In this study, magnetotelluric geophysical methods were used to describe 2D resistivity structures in the northern Sumatran. A geophysical survey using magnetotelluric method was done to image 2D resistivity model along the northern part of the fault. The measurement was carried out two lines, with a length of the profile is 92 km and 114 km, consisting of 14 measurement points across the fault, with distances between tracks ranging from 10-15 km. 2D resistivity models were generated by using the Reduce Basic Occam (REBOCC) code. From the resulted model, it can be interpreted as indications of the existence of the Aceh Segment and Segment Seulimeum Faults. In-line C, there are two locations indicated by faults, namely Saree area associated with the Seulimeum segment and the Jantho area associated with the Aceh segment and line D in the geographic area is associated with the Aceh segment. From the resulted model, the Sumatran Fault in the northern part of Aceh was divided into two segments as shown in the model.
The spatial distribution of Bactrocera dorsalis after 15 years of the 2004 Indian Ocean tsunami in Banda Aceh, Indonesia
Authors: Januarita C , Rahman A , Rasnovi S , Suwarno  
Published: December 2019

Abstract

Bactrocera dorsalis is one of fruit fly species that caused to the decreasing of fruits qualities. The 2004 Indian Ocean tsunami impacted more than 60% Banda Aceh city’s areas and changed the Banda Aceh city’s landscape. The purpose of this study is to analyze the special distribution of B. dorsalis after 15 y of the 2004 Indian Ocean tsunami in Banda Aceh tsunami-affected and non-affected areas. The data was collected from December 2018 to January 2019. The B. dorsalis was trapped by using the Modified Steiner Trap method in four villages, which selected randomly in nine sub-districts in the tsunami-affected and non-affected areas of Banda Aceh. The host plants were selected such as mangos, star fruits, guavas, and jackfruits, which commonly recognized in Banda Aceh. Data was analyzed and presented by using the GIS. After 15 years of the 2004 Indian Ocean tsunami the land and fruits plants have recovered. Bactrocera dorsalis were found in tsunami-affected and non-affected areas with total 2510 of B. dorsalis. There is no significant difference of the spatial distribution of B. dorsalis in both areas.
Utilizing web based GIS services for retrieving and disseminating geographic information for disaster management
Authors: Nizamuddin  , Ardiansyah  , Sofyan H , Muzailin  , Aldika W A 
Published: December 2019

Abstract
The development of Information and Communication Technology (ICT) related to web-based services such as portals, web services and databases (DB) services for searching, retrieving, disseminating and sharing information has also happened in the field of Geographic Information Systems (GIS) through web-based GIS Services. In GIS, the portal is replaced by Geoportal, Web Service by Web Mapping Service (WMS) and Web Feature Service (WFS) while DB Services is replaced by Geographic Database (GeoDB) services. Web based GIS services can be classified as Geoportal, WMS, WFS and GeoDB Services. This research developed a prototype of web-based GIS services for the management of Geographic Information related to disaster management. There are several techniques for developing GIS based web services such as using Content Management Systems for GIS, namely OpenGeo Suite, GeoNode, and ArcGIS based GIS Services. This research focuses on Web-based GIS Services with the ArcGIS platform. The prototype of Web-based GIS Services was built focusing on Geographic information in disaster management cycles such as recovery (rehabilitation and reconstruction), prevention (mitigation), preparedness and emergency response periods.
Purification of Used Cooking Oil Using Activated Carbon Adsorbent from Durian Peel
Authors: Miskah S , Aprianti T , Agustien M , Utama Y , Said M 
Published: December 2019

Abstract
Repeatedly use of cooking oil can cause increasing free fatty acids and peroxide value contained. Therefore, continuous exposure to used cooking oil has known resulting hazardous impacts on the environment and also to human health. Hence, it is necessary to purify used cooking oil before it is discharged to the environment. Durian peel contains high cellulose ranging from 50% - 60%, which is eligible to be used as carbon adsorbent’s raw material for used cooking oil purification. This study produced a kind of carbon adsorbent from durian peel through a carbonization process that lasted for 2 hours at 500°C combustion temperature with a chemical activation using H2SO4 1 N. This study was carried out with the adsorbent weight of 6 grams and various contact times of 30, 60, 90, 120, and 150 minutes. The most favorable results obtained after contact time was 0.0637% of free fatty acid, 0.41 meq O2/kg of peroxide value, and 0.9022 gr/ml of density, respectively, at 150 minutes contact time.
The Role of Food Delivery Services by Online Motorcycle Taxi on the Development of Culinary Home-Based Enterprises
Authors: Tyas W P , Damayanti M , Hutama J K , Saragih D D 
Published: December 2019

Abstract
The existence of home-based enterprises (HBEs) as the activities that utilize house as a place both to live and to generate income has been challenged by competition among them. The enterprises can take the advantages of technological advances to overcome this issue. One of the technologies that support the development of HBEs is online motorcycle taxi as a part of innovation in the urban infrastructure. The research case study area is around the area of UNDIP Tembalang-Semarang that is known as an education and housing area with many culinary businesses supplying the needs of students and the local community. Hence, this study takes a case of culinary HBEs that benefits from the existence of food delivery services provided by online motorcycle taxi. This study aims to examine the role of food delivery services provided by online motorcycle taxi in the development of culinary HBEs around the education area. This research uses both quantitative and qualitative descriptive method. The roles of this online services are examined from the perspective of culinary HBEs owners, online motorcycle taxi riders, and the consumers. The result is that there are several roles of online motorcycle taxi services namely maximizing business potential, helping business promotion activities, and providing easy access to customers, can be seen from the increasing income offline and online transactions and also the increasing service coverage of the culinary HBEs.
Traffic Management for Jalan Kayu Ayu in Seminyak Area, Badung Regency
Authors: Mataram I N K , Wikrama A A N A J , Suartika I G A M 
Published: December 2019

Abstract
The usage of land for commercial purpose along the side of the road often causes conflicts. One of the areas in Badung Regency, namely along the road called Jalan Kayu Aya, is an attractive tourism area, the passageway is quite large, while on the other hand the effective width of the road is only 5 meters. The purpose of this study is to analyze the performance and the current condition of the road as well as to analyze alternative solutions for improvement. Based on the results of the analysis, the peak hours at Jalan Kayu Aya Badung Regency is at 23.15-00.15 WITA, with a traffic volume of 1,078 pcu / hour, road capacity of 1236.51 pcu / hour, actual speed of 19, 26 km / h and a saturation level is 0.87 and an F for the level of road service. The analysis results of alternative 1 with the arrangement of side barriers shows that the traffic volume becomes 1,078 pcu / hour. The road’s capacity is 1404.43 pcu / hour, the actual speed is 27.23 km / h and the saturation level is 0.77 with a C for the level of road service. While the analysis of alternative 2 with the application of one-way roads results in a traffic volume of 550.2 pcu / hour, the capacity of the road’s passage is 1407.06 pcu / hour, the actual speed is 27.23 km / h and saturation level is 0.77 with a road service level of B.
Evaluation and study of minimarket potential locations in BWK I, Semarang City
Authors: Pramukti D , Tyas W P 
Published: December 2019

Abstract
Nowadays the population in Semarang City is increasing rapidly, this is also followed by the development of economic activities in the trade and services sectors. The minimization of the Minimarket to the lower middle trade sector can be seen from the increase in quantity. In 2010 the number of minimarkets in Semarang City had 244 buildings and continued to increase every year. This has an impact on land use change and will affect the existence of traditional markets. This research uses descriptive quantitative method with emphasis on spatial perspective. Aims to identify the needs, distribution patterns, service coverage (trade area), and suitability of the existing minimarkets. This study shows that the number of existing minimarkets exceeds the limits of what they should be. Based on the analysis of the suitability of the location of the existing minimarkets, as many as 11 minimarket buildings are included in the appropriate category from a total of 92 buildings.
The Hexa-Helix Concept for Supporting Sustainable Regional Development (Case Study: Citatah Area, Padalarang Subdistrict, West Java, Indonesia)
Authors: Zakaria Z , Sophian R I , Muljana B , Gusriani N , Zakaria S 
Published: December 2019

Abstract
A regional development requires some analyses in terms of the constraint and the potential. Constraints of a development need to be managed by periodic monitoring, while the potentials need to be maintained or optimally improved. The hexa-helix concept is a development of penta-helix concept with addition in the role of law and regulation. Citatah area is a multipurpose area where there is limestone quarry, factories, tourist attractions, and rock-climbing area as territoral potential. The constraints is found in Citatah are landslides and faults. To support the potential of the region, infrastructures need to be safe from landslide. The stable slopes have been built through terracing and engineered slopes. This research is directed to identify potentials and constraint in development of the Citatah area; evaluate safety factors around landslide prone areas; and inventory the role of hexa-helix agents in the infrastructure of road around the engineeried slope. The result shows that regional potential needs to be managed by utilizing the hexa-helix concept. Besides, the Citatah landslide zone needs to be aware. Environmental management and monitoring are required to avoid failure of development planning in the future. The result of this study will be useful for sustainable regional development in Citatah area.
Experimental research and modeling of chemical anchor systems under static and dynamic loading
Authors: Demiyanushko I.V. , Nadezhdin V.S. , Karpov I.A. , Tavshavadze B.T. , Titov O.V. 
Published: December 2019

Abstract
In article considered modeling of fastening post bridge barriers to the bridge, bearing system used chemical adhesive anchor systems at static and dynamic loads. In paper shown the possibilities of the analysis of the causes of critical plastic deformations and extreme stresses in the bridge barrier elements at the static and dynamic loads due to crash of the vehicle on bridge barriers. Analysis of the operation of bridge barriers in a collision allowed the optimal parameters to provided and saved lives in case of accidents.
Vibration and harmonic analysis of moderately thick anti-symmetric cross-ply laminated composite plate using FEM
Authors: Narwariya Manoj , Patidar Vinod , Sharma Avadesh K. 
Published: December 2019

Abstract
This work presents vibration and harmonic behaviour of cross-ply composite plates with anti-symmetric lamination scheme of layers. Convergence test and comparison studies for different parameters with respect to number of modes have been carried out using the finite element method. The finite element package ANSYS is used to determine the frequency parameter and resonance amplitude of the plate. The effects of different parameters on the vibration and harmonic behaviour, are discussed. The frequency-amplitude relationships are obtained and presented on frequency response function graph. The clamped, simply supported, free and the combinations of boundary conditions are considered. Effects of damping factor on harmonic response are also investigated.
Harmonic Analysis of symmetric and anti-symmetric laminated skew plate using finite element method
Authors: Narwariya Manoj , Sharma Avadesh K. , Patidar Vinod , Chauhan Premanand S. 
Published: December 2019

Abstract
In this paper, harmonic behaviour of laminated composite skew plates is presented with a symmetric and anti-symmetric arrangement of layers. The convergence and validity of the model have been checked by comparing different type of example available in published literature. From the comparison study, it can be easily observed that proposed model is being capable of solving the skew structures with adequate accuracy. The effects of various skew angles, lamination scheme and number of layers have been demonstrated. The results show the maximum variation in the non-dimensional fundamental frequency is limited to 3% for a symmetrically laminated skew plate. It is clear from the results that the maximum resonance amplitude occurs at the first fundamental mode of vibration at different skew angle. Finite element package ANSYS is employed for analysis of the plates. The SHELL281 element is chosen to mesh the model.
Reliability and Maintainability Analysis of LHD Loader at Saoner Mines, Nagpur, India
Authors: Vashistha Saurabh , Kumar Agrawal Anil , Siddiqui Mohd A H , Chattopadhyaya Somnath 
Published: December 2019

Abstract
In this era of intense economic competition as well as harsh and complicated environmental conditions, it is of utmost importance to achieve the high productivity and production of the mining equipment. This paper strives to analyze reliability and maintainability of Load, haul and dump (LHD) machine and to compute inherent availability of LHD machine in Saoner Mine Nagpur India. In this paper, renewal process is used for the modelling of the mechanical failures of the LHD. The validation of data whether it is independent and identically distributed (IID) is done by assessing the presence of trend and serial correlation with the help of graphical method. The parameters of various distributions were found by using Math Wave Easy Fit 5.6 professional software. Chi-square test has been applied for selecting the best fit distribution model. Further the study of the two parameter log normal distribution theory and its parameters is presented using log normal probability theory. The study reflects that analysis of reliability is a powerful tool for determining the intervals of maintenance.
Reliability and maintainability analysis of universal drill machine at Saoner mines, Nagpur, India
Authors: Gaurav Kumar , Agrawal Anil K. , Chattopadhyaya S , Siddiqui Mohd A H 
Published: December 2019

Abstract
Mining is the extraction of coal and minerals from the earth crust. Mining is mainly divided into two categories: opencast and underground mining. These mining activities are accomplished with the help of heavy engineering machine. The execution of these mining machines depends on machine reliability, operating environment, operating process and skill of the operator. In mining, a large number of heavy machinery are used and those are very costly. The failure of these machinery effects coal production. Therefore to overcomethese losses, reliability analysis is required. This paper represents a case study showing reliability and maintainability of universal drill machine (UDM) at Saoner mines, Nagpur, India. UDM is a crucial mechanism for the mining industry. The main work carried out by these machinesis drilling operation at a minimum time with higher accuracy resulting in the increased productivity. For survival in the intense competition and complicated environmental condition, it is necessary that UDM must be maintained effectively and efficiently. To check whether the collected data are independent and identically distributed(IID) or not, trend and serial correlation test are performed. To get the best fit distribution of data by K-S test, the easy-fit software is used. These distributions draw reliability as well as maintainability graph of the system. These graphs show that the machine is not working properly. To achieve high reliability of UDM, proper review of maintenance programme should be done.
Performance and Emission Characteristics of Combined Biodiesel Blend of Non-Edible Oil in Diesel Engine
Authors: Verma Brijesh , Raj Bundel Bharat , Sharma Abhishek 
Published: December 2019

Abstract
Nowadays every country is facing energy crisis. Continuous extraction of crude oil resulting in depletion of fossil fuels reserves. It is motivating researchers to develop alternative source of enrgy.Biodiesel is promising alternative for petro-diesel. Lot of work has been done on single biodiesel blend of edible and non-edible source of energy. Very few works has been found on dual biodiesel blend. In the present study, combined blend of second-generation fuel (Jathropha and Karanja) was studied on single cylinder four-stroke multi fuel diesel engine test rig. Performance and emission analysis has been examined at different load and constant speed (1500 rpm). Result showed that break thermal efficiency of diesel is higher than all blends of biodiesel. Break specific fuel consumption of combined blend (JK15KB15) was significantly higher than diesel and marginally lower than single blend of Jathropha (JB30) or Karanja (KB30). Combined blend of JB15KB15 showed lower HC, CO emission but higher NOx emission than diesel. Moreover JK15KB15 showed better emission characteristics than single biodiesel blend with diesel.
Effect of thermoelectric materials in electrical and thermal performance of photovoltaic thermal (PVT) collector
Authors: Gupta Anmol , Agrawal Sanjay , Pal Yash 
Published: December 2019

Abstract
A photovoltaic integrated thermal (PVT) collector with thermoelectric material has been proposed in this communication, where a channel or duct has been used below the photovoltaic module in which air has been circulated to extract the heat taken by the photovoltaic module. Hence in PVT system, electrical energy from photovoltaic and thermal energy from duct are taken at the output. In this collector, thermoelectric (TE) is used to change the thermal energy by removing the waste heat of photovoltaic module into electric energy. In proposed PVT with thermoelectric system, TEs are generally appended at the back of the photovoltaic to improve the efficiency of PVT collectors. Thermal modelling has been presented for PVT collector with thermoelectric. The effect of thermoelectric material has been analysed for PVT collector. The electrical energy gain for photovoltaic collector and overall electrical energy gain with thermoelectric has been theoretically calculated. From the computed results, the overall electrical output is observed of PVT system with thermoelectric material; it is higher than only PVT system due to thermoelectric. As PVT system without thermoelectric generates only electrical energy due to PV and thermal energy but PVT system with thermoelectric generates electrical energy due to PV and thermoelectric both as well as thermal energy so overall exergy of PVT system with thermoelectric is higher than only PVT system. Hence PVT system with thermoelectric shows better results than only PVT system in respect of electrical, thermal and overall exergy gain.
Water Filtration using Plant Xylem in Northern India
Authors: Ahmad Ansari Mubashshir , Mustafa Sameen , Husain Taliv , Ali Rashid 
Published: December 2019

Abstract
Currently, the world is facing scarcity of clean and potable drinking water. We have investigated whether the xylem (a porous conducting tissue) of a plant could be used as a filter to obtain drinking water. Firstly, we chose the appropriate plant for filtration based on our experimentation. Secondly, we used xylem to make a simple water filter and carried out experiments under the pressure head of the pump. Experiments were conducted using xylems of both angiosperms and gymnosperms. Freshly cut xylems of Ashoka tree, Silver Oak, Neem, Mango and Guava trees were screened for filtration. Filtration rate was measured for each plant and they were simultaneously checked for filterability of blue dye water solution. We found that sharp-edged, waxy leaf trees such as Ashoka and Silver Oak can filter water. These belong to the class of gymnosperms. Trees that bloom and give fruit (such as Neem) cannot purify water and remove impurities. The measured flow rate under a pressure of 2.5 psi was about 0.083 ml/s, which corresponds to a filtration rate of 7 litres per day or more and is sufficient for two people.