bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modular system construction for laminated wooden fishing vessel industry
Authors: Pribadi T W , Arif M S , Wahidi S I , Maditiara I W 
Published: February 2021

Abstract
The shipping of the fishing boat is expensive and time-consuming, due to the long distance between the shipyard and the fishermen locations. The main objective of this study was conducted to analyze the technical and economic aspects of the traditional fishing vessel building using the modular system construction on laminated Mahogany and Teak woods. Mahogany has the potential as an alternative raw material for wooden fishing boat because it is a fast-growth plant with the harvesting period of 15 to 20 years. The technical analysis was performed by building a prototype with a modular system construction of fishing boat with laminated wood materials. Firstly, survey was conducted to get the main dimension and design the lines plan of the existing boat. The structure of modules is made using the cold press planking method. Economic analysis is done by determining the building cost of fishing vessels with laminated wood construction using a modular system and calculating the investment of a 3 GT boat with laminated wood construction. Based on the prototype of the fishing vessel that has been built, it can be concluded that the price of a Mahogany and Teak laminate ship with a modular system is IDR 44.927.656 (USD 3,160) in comparison to the general price of IDR 30,000,000 (USD 2,110). Note the less, it can be concluded that the investment in fishing shipyard for laminated wood construction using a modular system is feasible both from technical and economic aspects.
Households electricity consumption patterns in small island – case study: Kepulauan Seribu regency, DKI Jakarta
Authors: Pratiwi W N , Nurlambang T , Susilowati M H D 
Published: February 2021

AbstractKepulauan Seribu is an area off the north coast of Jakarta consisting a relatively large number of small islands. Development of the electricity system here is planned to interconnect among islands. These developments tend to consider more on the supply and not much on the demand of each household. The difference in functions of each island is expected that in the future, planning to increase electricity transmission can be more focused on the pattern of needs as reflected in the consumption patterns and household characteristics. Therefore, this study was aimed to determine the pattern of household electricity consumption based on differences in the island function, and to find out the relationship between household characteristics and that patterns. The characteristics include household income, house building area, number of household members, and building functions. The variables in this study were analyzed using the descriptive spatial analysis and chi-square test. The results of the study showed that the electricity consumption pattern on the island which function in the tourism category was higher than the one in the non-tourism category. The results of statistical tests showed that both of an island tourism categories and non-tourism category the function of the household building has a relationship with electricity consumption.
Potential areas for the development of renewable energy system in Kepulauan Seribu: a case study for households in Pari Island, Tidung Island, and Pramuka Island
Authors: Khoirunnisa V , Nurlambang T , Susilowati M H 
Published: February 2021

Abstract
Kepulauan Seribu is a group of islands in the Java Sea where electricity source uses submarine cables that that can be damaged of damage the marine ecosystem. Whereas the government decides the Kepulauan Seribu region to be a Special Economic Zone that requires a strong electricity condition and sufficient electricity supply. Households as economic drivers have very high electricity consumption compared to other sectors in Kepulauan Seribu. The aim of this study was to analyze the potential areas for developing renewable energy systems that are appropriate for regions with high levels of electricity consumption. The method used in this study is Multi-Criteria Decission Making (MCDM) with an Analytical Hierarchy Procesess (AHP) weighting technique. The result shows that renewable energy that potentially developed in Kepulauan Seribu is Solar Energy whereas wind energy offshore has a low potential. The findings show that solar energy has high potential to be developed in the Kepulauan Seribu region. Meanwhile offshore wind energy has low potential to be developed in Kepulauan Seribu. The energy that can be generated by the PV system on Tidung Island is 108,505 kWh/m2/day, Par i Island is 66,976 kWh/m2/day, and Pramuka Island is 18,845 kWh/m2/day/day.
Potential areas for the development of renewable energy system in Kepulauan Seribu Regency: case study for tourism sector in Putri Island and Ayer Island
Authors: Kamilah N , Nurlambang T , Susilowati M H 
Published: February 2021

Abstract
Kepulauan Seribu Regency is one of the priorities of tourism development areas in Indonesia which triggers an increase in electricity demand as one of the primary needs of tourism activities. The existing condition of energy fulfillment for resort islands is diesel power plants (standalone). Meanwhile, renewable energy sources can be used as energy source in Kepulauan Seribu Regency. The purpose of this study is to find out the potential of energy that can be produced by renewable energy system based on the area suitability of communal photovoltaic and offshore wind turbine using Spatial Multi Criteria Analysis method. The results indicate–that based on the mapping of the suitability area, the renewable energy system that has the potential to be developed on Putri Island and Ayer Island is a communal photovoltaic system, while the wind turbine system is not suitable for both islands. The study concluded that the potential energy that can be generated by Photovoltaic system is found greater in Putri Island which is located in the North Kepulauan Seribu if it is compared to Ayer Island which is located in the South Kepulauan Seribu.
Risk analysis of milkfish supply chains in Semarang using house of risk approach to increase the supply chain resilience
Authors: Purwaningsih R , Hermawan F A 
Published: February 2021

Abstract
This research aims to identify, measure and analyse the operational risk in supply chain of milkfish at Semarang. The supply chain activities emphasize on cooperation between parties to reduce risks in all stage of supply chain. Risk event occur are the return of fish to suppliers due to the poor quality, damaged product during the production process, and customer complaints due to improper order services. These problems result on out of stock of fresh fish, low customer satisfaction, and financial loss for the fish processing industries and distributors. Therefore, it is important to identify, measure and analyse the risks that probably occur in the supply chain from harvest area to end customer. The house of risk method used to analyse the supply chain risk and Supply Chain Operation Reference (SCOR) approach used to divided the business process into 5 main processes i.e., plan, source, make, deliver and return. The data collection was done by deep interview and spread questionnaires to industries manager and staff. The risk identification result shows that 7 risk events occur in the production process and 8 risk events in delivery process. These two processes have highest risk event number. The highest risk severity is found on Chlorine contaminated products. Based on severity value, some recommendation was formulated to reduce the impact of occurred risks to increase the supply chain resilience.
Nutrition analysis of milkfish processed in Keputih Timur, Surabaya
Authors: Rosyidah A , Setyaningsih E P , Murwani I K , Ediati R , Romadiansyah T Q 
Published: February 2021

Abstract
Keputih Timur, Sukolilo District, East Surabaya have ponds with the total area of 1,278 ha make Keputih Timur as one of the conservation areas. Keputih Timur was located in the city of Surabaya with a location adjacent to the Madura Strait. There are many ponds in this area that have a great opportunity to be developed into an organic milkfish producer area. The products of these ponds were very beneficial for the surrounding community as income land and great source of nutrition. This research-based community service activity have increased the community income through diversification of pond processed products. The processing technology was frozen processed products with raw materials of milkfish and seaweed to improve nutrition content in milkfish.
Deacidification of rice bran oil using a deep eutectic solvent
Authors: Jannah A , Maulita F , Zullaikah S , Rachmaniah O , Rachimoellah M , Ju Y H 
Published: February 2021

Abstract
The liquid-liquid extraction (LLE) will be applied in this study using a deep eutectic solvent (DES) of choline chloride and ethylene glycol with a 1:2 molar ratio. The LLE process will compare the results of removing free fatty acids (FFAs) between single and multiple extractions. Rice bran oil (RBO) with various initial FFAs contents (5%, 10%, 20%, 30%, 40%, and 60%, w/w) and γ -oryzanol (2%, w/w) are used in this study. Deacidification is carried out by mixing RBO with a certain level of FFAs and γ -oryzanol, a volume ratio of RBO: solvent (DES) = 1:2, and total extraction time in multiple LLE was 1200 min. (240 min./stage x 5 stage). It was obtained that the removal of FFAs in the single LLE are 10.04%, 23.28%, 13.43%, 17.55%, and 17.49%, respectively, while in the multiple LLE are 48.64%, 60.37%, 63.13%, 63.15%, and 41.79%, respectively, for RBO with an initial FFAs content of 5%, 10%, 20%, 30%, 40% and 60%, respectively. The losses of γ-oryzanol in the single LLE are 48.32%, 61.26%, 73.32%, 74.22%, and 89.59%, respectively, while in the multiple LLE are 87.16%, 95.58%, 99.14%, 99.77%, and 99.77%, respectively, for RBO with an initial FFAs content of 5%, 10%, 20%, 30%, 40% and 60%, respectively. Deacidification of RBO using DES in the multiple LLE removed FFAs 3.63 times higher than that in the single LLE. However, the losses of γ-oryzanol increased in the multiple LLE which is 1.43 times higher than that in the single LLE.
Integration of an independent e-ticketing system into a common e-ticketing platform in ferry services
Authors: Luhur M A , Nugroho S , Kurt R E , Achmadi T 
Published: February 2021

Abstract
The demand for mobility has evolved with increasing globalization. Multimodal passenger transport has grown steeply. The ease of obtaining information on the schedule, making a ticket reservation, and making a payment is obvious. This method of e-ticketing is also more cost-efficient, simple and practical, compared to conventional ticketing system with a hardcopy ticket. Nearly all transport providers have been providing an e-ticketing service, both independently and integrated in a multimodal e-ticketing platform. This paper outlines a study on the integration of e-ticketing system of a ferry operator, and an effort to integrate it into a common e-ticketing platform. The finding shows that the biggest challenge of entering into an e-ticketing system and integrating it into an e-commerce, i.e. common e-ticketing platform lies in the core of ship operations, namely the necessity to have an access on a real-time and reliable ship scheduling.
Transport telematic architecture of an electronic payment system for traditional merchant shipping
Authors: Tetuko F , Nugroho S , Tezdogan T , Djatmiko E B , Buana I G N S 
Published: February 2021

Abstract
Wooden boats operating throughout an archipelagic country play an important role in connecting in particular remote areas and small islands. Those boats are deployed by traditional merchant shipping, also known as Pelra, abbreviated from Pelayaran Rakyat meaning Pelople’s Shipping. They carry nearly all types of cargoes, and usually a family business. Efforts to alleviate its role are necessary, from various aspects. The duration of shipments of cargo by using Pelra ships is long, the impacts on the cashflow of many parties are immediately afected. The growth of internet usage open a window of opportunity to improve this situation, by introducing e-Payment system. This paper outlines this effort by applying the Intelligent Transpotation System (ITS) architecture. A Pelra route Surabaya-Bima serves a case study to investigate the viability of the e-payment. The study concludes that introduction of an e-payment system is promising.
Design of Lighter Aboard Ship (LASH) for distribution of goods in small islands: case study of Kangean archipelago
Authors: Awwalin R , Nugroho S , Achmadi T 
Published: February 2021

Abstract
A ship is an important means of transportation for archipelagic countries such as in Indonesia. The development of ship technology in the world has shown a rapid progress, where various innovations have been made in the effort to ease and accelerate the sea transportation system. These are ranging from the design of ships, cargo and logistics handling systems, and enhancement of regulations related to ship safety. Lighter Aboard Ship (LASH) is an innovation of ship type that has the concept as a ship loading lighter barges. This ship is designed to reduce waiting times at the port and reduce the use of port docks, so that it is highly suitable to serve the small islands where adequate port facilities are typically not available. The aim of the study is to design a LASH that will be used as a means of transportation of goods in the Kangean Archipelago. This is a group of small islands located in the easternmost of Sumenep District with a total population of 192,807 people forecasted by 2019. The LASH vessel size is determined by using the optimization with linear programing. The initial stages are the definition of owner requirements, which include primarily the cargo load capacity and ship speed. The design in turn provides the main dimensions of the LASH, namely the Length Over All (LOA) of 48.71 m, breadth moulded (Bmld) 10.43 m, and deck height moulded (Hmld) 4.09 m.
Design and analysis of Trimaran feeder ships as a connector for small islands in the Maluku
Authors: Luhulima R B , Gaspersz F , Sutiyo  , Utama I K A P 
Published: February 2021

Abstract
Maluku waters have limited seas, which are still categorized as calm seas because the wave height is about 1.0 meter. The existence of feeder ships for transportation services from and to areas that are still considered remote, outermost and border will behave more smoothly in operation. The selection of three-body vessel (Trimaran) has the advantage of having a large deck area so that it can function as a feeder between small islands effectively and efficiently. This paper focuses on analysing resistance and seakeeping of Trimaran vessel for limited seas using CFD techniques with variations in transverse distance S/L = 0.2, 0.3, 0.4, 0.5 and at a speed designated by the Froude number Fr = 0.21. The results of numerical analysis show that at S/L = 0.4 the vessel has very good characteristics in resistance and seakeeping. Therefore, results of the calculation can be adopted as preliminary data for the preliminary design.
Design of autopilot control system on unmanned surface vehicle type monohull LSS-01 using model reference adaptive control-state feedback in waypoint control
Authors: Rahmasari F , Kadir R E A , Gamayanti N , Santoso A , Bilfaqih Y , Agustinah T 
Published: February 2021

Abstract
For unmanned surface vehicle to run automatically, algorithms of the autopilot system and waypoint navigation are needed. The autopilot system is an unmanned surface vehicle control towards the waypoint. One example of a navigation algorithm is the desired waypoint, it requires control of the ship's steering angle, namely thrust and turning angle. Unmanned surface vehicle can encounter external interference while advancing, such as waves, wind, and ocean currents. It is desirable, therefore, to unmanned surface vehicle to be able of adapting these conditions. One way to overcome this interference is to design adaptive controllers such as the Model Reference Adaptive Control (MRAC) - state feedback to regulate the behavior of unmanned surface vehicle plants. In this respect a reference to the desired model is required for the MRAC-state feedback controller. Using this method, it is expected that unmanned surface vehicle can move accurately from the expected waypoint. The MRAC-state feedback controller can produce an angle response of unmanned surface vehicle and speed on the surge axis according to the desired design criteria. From the simulation carried out the adaptive gain that is suitable for LSS01 unmanned surface vehicle is 0.0001. The results of simulation on the ship headed waypoint cross-track show RMS error when uninterrupted is 0.0846 and when given a disturbance is 0.2969.
2D Image-based higher-order meshing for 3D modelling in MATLAB
Authors: Smitha T V , Madhura S , Brundha R 
Published: February 2021

Abstract
We present a higher-order meshing technique to 3D modelling applications from 2D images. This method uses 2D images that are converted to 3D stereolithography files on which tetrahedral meshes of higher order are developed. The resulting 3D meshed structures find several applications in Computational fluid dynamics and finite element analysis problems. The generateMesh is the initial mesh used by the presented mesh generator, which is a MATLAB function from the PDE Toolbox. The required inputs for the mesh generator are stereolithography file and mesh edge length upper bound of the 3D structure. A higher-order tetrahedral mesh, connectivity matrix, node coordinates, and nodes lying on the border are the results we get from the presented work. For many finite element analysis problems, the outcomes obtained from the presented mesh generator can be used very efficiently to enhance the numerical results. In medical simulation, photogrammetric fields, material engineering, computational materials science, computational electromagnetics, etc., this method can be used.
A105 Work-Material Turning Experimentation using L9 Orthogonal Array Runs with Dry, MQL and Nano-Al2O3 Assisted MQL Machining Conditions
Authors: Shaikh Shehzad , Shaikh Vasim A , VeeraBhadra Rao M , Patil Bhushan T 
Published: February 2021

Abstract
A105 carbon structural steel material exhibits high strength and hence pose machining difficulties such as excessive tool wear due to high cutting temperatures. Abrupt cutting actions due to improper selection of feed rates have posed to bad surface finish of work-pieces. These materials find best applications in flanges and pipe fittings and generally turning operations are conventional methods to change its dimensions and attaining accuracy levels. An attempt is made to experiment on A105 work material using lubricant vegetable coconut oil under minimum quantity lubrication ( MQL) assisted by nano-particles such as Al2O3
in order to find suitable combinations of working environments, to compare with dry cutting, and also to decide suitable feed rates and cutting speeds combinations.
Evaluation of Internal Forces and Support Reaction of Column and Shearwall in 15th Building Design
Authors: Wiyono D R , Milyardi R , Pranata Y A 
Published: February 2021

Abstract
In the case of 15th building, the structure type to earthquake resistant code is dual system reinforced concrete consists of frame and shear wall. The structure is analysis by dynamic analysis for whole structure and compare base shear by static analysis. By several trial position of shear wall can give first and second mode is translation and the third mode is rotation. In this case planar shear wall is used and placed in two direction of axis. The category of structural system is Other Structure for calculation of fundamental period (T). Fundamental Period (T) of structure is more than T maximum, so value of static seismic coefficient (Cs) taken from T maximum. Each of important element is column where the dimension and reinforcement are must satisfied for requirements. Shear wall have joint together with others shear wall, so one node used by several shear wall, make duplication forces in support reaction. For foundation design we can used 1st story internal forces in finding forces and compare them with after correction of support reaction caused duplication node in used with several shear walls. This exercise could solve the problem to anticipate duplication forces in several planar shear wall using one foundation assembly from several shear walls. The results of preliminary design column based on axial forces is 23,12 % lower than internal forces. From preliminary design based on axial forces. The dimension of preliminary design columns are lower than ideal dimension with 3 % reinforcement ratio. The result of difference between internal forces columns and support reaction columns is 12,99 %. The result of difference between internal forces shear walls and support reaction shear wall is 0,80 %.
Formulation and Physical Stability Test of Facial Gel Wash Dragon Fruit (hylocereus polyrhizus) Peel Extract
Authors: Yuniarsih N , Lenterani I , Farhamzah  
Published: February 2021

Abstract
Cosmetics are a necessity in everyday life. Cosmetics are divided into two types, namely cosmetics for care (skincare) and decorative cosmetics (make-up). The facial wash is a form of cosmetic care to clean the face which can be in the form of foam, cream, and gel. Gel is a preparation that has good distribution, the good release of active substances, and is easily washed with water. This research is to formulate dragon fruit peel (Hylocereus polyrhizus) into a facial gel wash. Dragon fruit peel is a waste that is often ignored by the community. The dragon fruit peel was extracted and then made a facial gel wash formulation with three formulas, namely 8%, 9%, and 10% followed by physical stability testing. This study aims to formulate and determine the physical stability of the facial gel wash formulation of dragon fruit peel extract stored at three different temperatures, at room temperature, under the sun, and 40°C. The stability of the preparation was seen based on the results of organoleptic testing, pH, viscosity, and accelerated foaming before and after storage. The results of the physical stability test were statistically processed using the One Way ANOVA method. The results of this study showed that the three formulas, especially formula 1, were more stable at room temperature, under the sun, and 40°C.
Neural Collaborative For Music Recommendation System
Authors: Girsang Abba Suganda , Wibowo Antoni , Jason  , Roslynlia  
Published: February 2021

Abstract
In music there are various types of genres and every person has their own choice of the type of music they want to hear. Recommendation system is an important feature in an application, especially with the large number of choices for a particular item. With a good recommendation system, users will be helped by the suggestions given and can improve the user experience of the application. It is better provided by using collaborative filtering (CF) approach by recommending products related to one’s preferences history. However, CF approach still lacking in integrating complex users data. Therefore, hybrid technique could be the solution to polish the CF approach. Combining neural network and CF also called NCF thought to be better than CF alone. This study focuses on collaborative filtering approach combined with neural network or called neural collaborative filtering. In this study, we use 20,000 users, 6,000 songs, and 470,000 transaction ratings then predict the score using CF and NCF approach. The aim of this study is to differentiate recommendation systems with the use of CF alone and NCF. Through this research, it was found that NCF is better than user-based collaborative filtering in gather those playlist they really want to hear, but requires more time to build it.