bluuebunny/crossref_metadata_2025_split huggingface dataset:
The logistics system planning for red onion: case study of Sulawesi and Maluku Islands
Authors: Buana I G N S , Mustakim A , Widayanti H , Devintasari D V , Wuryaningrum P , Hadi F 
Published: February 2021

Abstract
Red onion is a horticultural product produced in several regions of Java Island. This commodity only grows in certain seasons where the production time of one region to other regions is different. The lack of logistics design makes traders from producing regions unable to deliver it to demanded areas due to inappropriate selection of transportation combination and its schedule. This increases its distribution cost in Sulawesi Island and Maluku regions. This research aims to plan a red onion logistics system distribution for West Sulawesi, Southeast Sulawesi, Central Sulawesi, Gorontalo, North Sulawesi, Maluku and North Maluku, by taking into account the production location based on the onion harvest time, combination of shipping method, ship type, scheduling and quality so it will arrive on time with maintained quality. The logistic system is designed by using an optimization method to obtain optimal transportation modes and minimum unit costs. The optimization results show that the most suitable shipment is to use container ship owned by private shipping company, either in full container load (FCL) or in less container load (LCL). The average logistics costs to Sulawesi Island and Maluku Region are IDR 3,037/kg (USD 0.21/kg) and IDR 2,296/kg (USD 0.16/kg), respectively. These are 31% and 27% lower than the previous values, while the average damage rates are 4% and 5%, 6% and 5% lower than before.
Packaging development study for archipelagic sea transportation
Authors: Ardhi E W , Yunianto I T , Rahadi S J A , Blessing F , Achmadi T , Permana C B S , Mustakim A 
Published: February 2021

Abstract
Reliable multimodal transportation system is absolutely necessary to maintain connectivity in a large archipelagic country such as Indonesia. A good multimodal transportation system is needed to distribute basic needs from Java Island especially to other regions in the country. With the government program “Sea Toll”, 20-ft containers are widely used to deliver basic needs. However, due to the limitations of existing infrastructure, container distribution cannot always reach the final destination (door to door service). Therefore, it is important to analyze the possibility of packaging development for multimodal transportation to enhance the efficiency of operational and cost aspects. In this respect a research has been conducted by considering the H-1 and T-5 route of Sea Toll program 2019, as well as the Pioneering ship R-33 route 2019 with the destination of Essang Port for study case. This research was conducted using a comparative method of operational and financial performance from 10 scenarios. These 10 scenarios are applied to the same route with different packaging alternatives. Where 1 packaging type is the existing packaging, 6 packaging types are from the previous research, and 3 packaging types are the new design. Results of this research suggest the combination of 20-ft container with packaging Design-1 is the best scenario. Compared to the 20-ft container only, combination of 20-ft container with packaging Design-1 can save 37.58% of logistics costs, 49.24% of repositioning costs and 19.35% of shipping time. However, for the opportunity cost, combination of 20-ft container with packaging Design-1 requires IDR 350,000 (USD 24.6) higher than the 20-ft container only.
The characteristic, performance, accessibility, and prediction of cargo handling in Probolinggo New Terminal Port
Authors: Priyambodo  , Sutanto S H 
Published: February 2021

AbstractThis study is designed to evaluate the two years of operation of the Probolinggo New Terminal Port. Meanwhile, the objective is to acknowledge the characteristics, performance, accessibility, and prediction of its loading and unloading of goods. In order to achieve it, it needs to acknowledge the characteristics of the port, prediction or projection of the ships traffic volume, and goods by using linear regression analysis and qualitative descriptive statistics. The findings show that the characteristics of the port have not yet become a pilotage compulsory port. The port infrastructures are already adequate. The capacity of the Probolinggo New Terminal Port is still categorized as small. The types of boat that load and unload the goods comprise of barges, motorized sailing vessels, motorized sailing boats, and ships. The volume of ship calls and volume of goods loading and unloading at the Probolinggo New Terminal Port are very fluctuating and unstable. The internal accessibility from and to the Probolinggo New Terminal Port is very good and easy, however, for external, there is an obstacle in the area of Klakah. The prediction or projection of ship calls and goods loading and unloading are increased. To the Probolinggo New Terminal Port, it is recommended to improve the port infrastructure and to immediately maximize the role of port information so that the users can be informed about the port’s profile and all facilities of goods loading and unloading.
Air transportation and its role for islands connectivity in supporting regional development
Authors: Ahyudanari E 
Published: February 2021

Abstract
Air transportation plays important role in connectivity among islands and remote area in Indonesia. The presidential decree regulates the distance between airport and other airports. This decree statements drive the government to follow. The problem raise when the approval of the selection of airport location leads to unattractive business either for airlines or passengers. This paper aims to review the decree through comprehensive literature review. The competition between airports is discussed through rigorous insight into the current day complexities, synergies, and potential conflicts present within the relationship between the airport location and its user. This issue is then brought to bigger perspective in discussing potential development through the availability of airport facilities in remote area. The reviews provide the variables considered in building the regional connectivity.
Dynamic modelling and controlling Unmanned Surface Vehicle
Authors: Setiawan F A , Kadir R E A , Gamayanti N , Santoso A , Bilfaqih Y , Hidayat Z 
Published: February 2021

Abstract
Unmanned Surface Vehicle (USV) is vessel that can move without human to control. USV is capable of moving using the thrust force and can maneuver using the deflection angle of rudder. USV has a 6-degree of freedom which are non-linear system that can be approached with the 3-degrees of freedom. The purpose of dynamic modeling of USV is to achieve the models and parameters of real USV. Non-linear least square Levenberg-Marquardt method can be applied to estimate USV model as a non-linear system. The purpose of controlling USV is to set the surge velocity and the yaw-rate so that the USV movement can be controlled. Proportional integral controller can be used to manipulate the velocity and to accelerate the response speed of the USV’s velocity. Parameters validation results show that the dynamic modeling methods could generate the parameters nearly equal to the true parameters. This is evidenced by the relatively small RMSE value in x-axis acceleration, y-axis acceleration, and yaw-axis acceleration. The result of controller testing illustrate that the designed controller can adjust the surge velocity and yaw-rate and fit the time constant controller design specification. Further, the testing show that the responses have zero steady state errors.
Unbalanced load analysis on closed bus electrical system of ship’s dynamic positioning in a laboratory scale
Authors: Sarwito S , Semin  , Zaman M B , Soedibyo  , Makarim R A 
Published: February 2021

Abstract
Dynamic positioning system is a system that maintains floating offshore structures and ships their position on a certain coordinate that the have been prearranged. The dynamic positioning system uses thrusters, which require additional power. As a consequence the fuel consumption is increasing. In the installation of a dynamic positioning system, the configuration of a split bus is usually applied. As of lately, there are a lot of concern in changing to a closed bus configuration because theoretically the system will have high efficiency and low emission. An analysis is performed to observe the condition of unbalance voltage of dynamic positioning system of a ship by modelling in a laboratory scale system. Several scenarios and variations are used to see the condition of the unbalance. The system modelling results in 220V∠0°, 218V∠-113.7°, 218V∠123.18° for scenario 1 variation 1, 220V∠0°, 220V∠-120°, 218∠120° for scenario 2 variation 1, and lastly 219∠0°, 220∠-120°, 220∠120° for scenario 3 variation 1. The highest unbalance condition happens on scenario 1 variation 3 with a PVUR of 0.78%.
Arduino and SMS gateway-based for ships emergency information system
Authors: Pramana R , Nusyirwan D , Prayetno E , Nugraha S , Hendrikson D 
Published: February 2021

Abstract
One of the factors hampering aid to ship accidents is the assistance that comes does not match the type of accident on the ship. No navigation device that is able to identify the type and position of the accident is the cause of inappropriateness in providing emergency assistance. The purpose of this study is to develop a device that could provide information on the type of emergency and the latitude and longitude positions during an emergency. This emergency information system uses GPS devices Neo 6MV2 to determine the coordinates of the accident and SIM900A. To send the type of emergency identified through four (4) push buttons. Red push button for fire, yellow for collision, green for leakage and flooding, and blue for ship grounding. The device is equipped with LED indicator according to the color push button to indicate the type of emergency on the ship. The results of reading the push button will be processed using the Arduino Mega. Latitude and longitude coordinates are displayed on the LCD. As an indicator of sending the ship's emergency information message, the buzzer is used and the information delivery time is 5:32 seconds on average.
Risk assessment of aging offshore jacket platform group: a case study on “B” Field platforms
Authors: Riyanto R D , Helvacioglu I H , Murdjito M , Djatmiko E B , Sambodho K , Syahroni N , Wardhana W , Mulyadi Y , Handayanu  , Prastianto R W 
Published: February 2021

Abstract
Offshore jacket platforms are designed to fulfil their intended purpose in oil and gas exploitation at designated service life periods. During the operational development, a number of field operators extend their platform service life if the reserves are still available. This technical paper proposes the method to assess the structural integrity of several aging platforms in a field with a simplified approach. Taking the case of “B” Field platforms installed in the mid-1990s, the detailed procedure and example are discussed thoroughly. Five indicators furnished with quantification procedures are also presented to propose the ranking methodology. This paper also proposes the method of jacket platforms grouping based on several similarity criteria. The results of this approach can be used as a baseline for more detailed structural integrity assessment for each group representation.
Mapping the Spread of Covid-19 in Asia Using Data Mining X-Means Algorithms
Authors: Arminarahmah N , GS A Daengs , Bhawika G W , Dewi M P , Wanto A 
Published: February 2021

Abstract
Until now, Covid-19 is a phenomenal problem faced by almost all over the world, especially countries on the Asian continent. Not only causing casualties, but this virus also affects the wheels of the country’s economy. The purpose of this paper is to view and map the spread of the Covid-19 virus in Asia based on Total Cases, Total Deaths, Total Cured and Active Cases from 49 Countries. The research data in this paper were obtained from the Worldometer website sourced from WHO, CDC, NHC and others. In this proposed paper, the algorithm used is X-Means Clustering with the help of Rapidminer. The results of this proposed paper are in the form of grouping or mapping the spread of the Covid-19 virus in Asia which is divided into 4 zones, including the Red Zone (the number of active cases of Covid -19 and the death rate is very high) which consists of 1 country, the Orange Zone (number of cases active covid -19 and the mortality rate is quite high) consisting of 1 countries, the Yellow Zone (active case rate of Covid -19 and moderate mortality) consisting of 39 countries, and the Blue Zone (active case rate of covid -19 and low mortality rate) which consists of 8 countries.
Utilization of the Batch Training Method for Predicting Natural Disasters and Their Impacts
Authors: R Ginantra N L W S , Hanafiah M A , Wanto A , Winanjaya R , Okprana H 
Published: February 2021

Abstract
Indonesia is one of the countries that often experiences natural disasters, including earthquakes, floods, tsunamis, etc. All of this causes losses, both casualties, Broken, and Anguishing for the population. Based on this, this paper is proposed, which aims to predict natural disasters in the coming years in Indonesia, casualties, Broken, and their consequences. This paper is an extension of previous research, which is still an architectural model to predict Indonesia’s natural disasters and their impacts. Model 4-10-1 is the best in this study, which produces 91% accuracy. Based on this architectural model, this paper will predict natural disasters that occur and their impacts for the years to come in Indonesia. The research dataset and algorithms used remain the same, namely the natural disaster dataset for 2008-2019. Resourced from its National Emergency Management Department and the Batch Training algorithm. Specifically, the results of this proposed paper are in the form of a prediction of natural disasters that will occur, dead and disappear, injured, Anguishing and displaced, houses severely Broken, moderately Broken, lightly Broken to submerged, and Broken to facilities and infrastructure such as health facilities, facilities. worship and educational facilities.
Electronic Participation Technology Adoption Model in Indonesia: The Role of Gamification Impact
Authors: Napitupulu D , Adiyarta K , Windihastuty W , Fatimah T 
Published: February 2021

Abstract
This study aims to propose a conceptual model in the context of e-participation technology adoption. This research develops the UTAUT base-line model with several constructs, namely Insecurity and Gamification. The impact of gamification to increase user participation is not widely known, especially regarding the acceptance of e-participation. The method used is a literature study related to several best practice models such as UTAU, TRI and gamification constructs. The results showed a total of 7 constructs and 6 hypotheses proposed in this study. All these constructs are performance performance expectancy, effort expectancy, social influence, facilitating conditions, insecurity, gamification impact and behavioral intention to use. The implication of this research is that the lack of public participation in digital platforms can be increased through redesign of e-participation by applying the gamification approach.
CrackWeb : A modified U-Net based segmentation architecture for crack detection
Authors: Ghosh Sandeep , Singh Subham , Maity Amit , Maity Hirak Kumar 
Published: February 2021

Abstract
Classical image processing methods demands heavy feature engineering, as well as they are not that precise, when it comes to manual extraction of relevant features in real life scenarios amid to various lighting conditions and other factors.Thus, detection of cracks using methods based on classical image processing techniques fails to provide satisfactory results always. Hence, we have proposed a deep convolutional neural network, that is not based on manual extraction of features as mentioned above. We proposed a modified U-Net architecture, and replaced all of its convolutional layers with residual blocks, inspired from the ResNet architecture. For evaluation of our model Dice Loss is used as our objective function and F1 score as a metric. Other than that, for better convergence and optimization, a learning rate scheduler and AMSGRAD optimizer was utilized.
Study of the Reality on Electric Vehicle in Indian Scenario
Authors: Kar Bappaditya , Pal Tarun Kanti , Bhattacharyya Suvanjan 
Published: February 2021

Abstract
In this work, the estimation of the actual CO2 emission of a conventional IC engine vehicle and an electric vehicle have been studied in different phases and those vehicles are in same segmented also. How much time it would be taken in order to convert an electric vehicle in to a Green Vehicle (GV) also been studied. In our work, we compare two similar SUV’s in there same segment one is Electric Vehicle (EV) and another is conventional IC Engine Vehicle (ICV). Both the cars have very similar power output; torque and design in there segment. Although there are many options of fast charging, long refuelling or recharging time is a major problem of the EV but this is not our concern study. In science each and every innovation has one good and a bad side, and there is no exception about the EVs also.
Feeble ferromagnetism and double relaxation mechanism in Bi0.42Ho0.28Ba0.24Ca0.06Fe0.7Ti0.3O3 ceramics
Authors: Chakrabarti Chiranjib , Yuan Songliu , Fu Qingshan , Das Anirban 
Published: February 2021

Abstract
The structural, magnetic, and dielectric studies on Bi0.42Ho0.28Ba0.24Ca0.06Fe0.7Ti0.3O3 ceramics present some exciting outcomes. An XRD based structural study shows that the ceramics hold an ABO3-type perovskite network. Room-temperature MH-hysteresis study detected the trace of ferromagnetism in the ceramics. The temperature-dependent dielectric study exhibits that a double relaxation mechanism is engaged for a wide range of temperature and frequency.
Anodic oxidation of sodium formate and methanol on Pd and Pt electrodes in alkali: a comparative study
Authors: Bera Kamal Kanti , Chakraborty Malay , Bhattacharya Swapan Kumar 
Published: February 2021

Abstract
Formate and methanol oxidation reaction (FOR and MOR)s are compared at room temperature on Pd and Pt electrodes in alkali. The onset potential and tafel slope for FOR on Pd are less by 0.203 V and 0.481 Vdec−1 than these on Pt electrode. The peak current densities on Pd are 15.8 and 144 times greater than that on Pt in MOR and FOR respectively. The greater catalytic activity of Pd in FOR is supported by the greater formation of carbonate as obtained from IR spectroscopic and chromatographic investigation of products. The equilibrium exchange current density on Pd for FOR and MOR are 52.3 and 2.3 times of the corresponding data on Pt electrode. Despite methanol provides greater steady current than formate, the latter is better fuel particularly on Pd electrode in respect to formation of carbonate and power development.
Machining alumina plates using abrasive jet of silicon carbide
Authors: Adak D K , Dutta P , Das S , Haldar B 
Published: February 2021

Abstract
The abrasive jet machining (AJM) is used in many engineering applications including brittle material machining and finishing, surface preparation of the metal for welding and thermal spray coatings, etc. In this process, fine grain abrasive particles are given high speed through carrier gas which is directed to impinge on a target surface to be machined. The high kinetic energy of the abrasive particles is responsible to erode materials from the surface. In this work, three input cutting parameters such as abrasive flow rate, abrasive grain size, and stand-off distance (SOD) are chosen to experiment on 99.7% pure alumina plate of 4 mm thickness, using silicon carbide (SiC) abrasive. Material removal rate (MRR) and nozzle wear rate are the output responses that are to be investigated using response surface methodology, keeping working pressure constant at 6 kgf/cm2 throughout.
Studies on Al-MWCNT MMC surface coating on Aluminium substrates through friction surfacing process
Authors: Sreenu A V , Revathi M , Sukeerthi G Ramya , Maheswari B 
Published: February 2021

Abstract
In this study, Aluminium-Multi Wall Carbon Nano Tube (Al-MWCNT) metal matrix composite surface coating was fabricated by using solid state friction surfacing technique on Al substrate. The influence of process parameters on the coating dimensions, integrity and hardness was examined. The optical microscopy studies revealed that the coating integrity with the substrate is good with Trial-2 parameters i.e RPM 2500, Axial Load 700Kg and Traverse Speed 6mm/s. Grain refining due to the dynamic recrystallization was observed in the coating microstructure. XRD studies revealed that the MW-CNTs were distributed in to the coating and no detrimental intermetallic compounds were formed between Al matrix and MW-CNTs except Al4C3. The Scanning Electron Microscopic Studies reveals that the Al metal was severely deformed before forming the coating which is evident from the flow lines. It is further confirmed from the SEM studies that the MW-CNTs were dispersed uniformly within the coating and the nano size was retained in the coating without significant coarsening.
Unsteady development of Marangoni convection in a sidewall moving open cavity
Authors: Biswas Nirmalendu , Datta Aparesh , Mandal D. K. , Manna Nirmal K. 
Published: February 2021

Abstract
In this study, simultaneous effect of free, forced and Marangoni convection on fluid flow and heat transfer in a sidewall moving open cavity is investigated. The cavity is filled with low Prandtl number fluid (Pr = 0.054); such a situation can be find in the application of liquid metal and semiconductor melts. Free convection is induced due to the heating of fluid from the bottom of the cavity. Forced convection is originated due to the translation of the sidewalls either in upward or downward direction. Whereas, the Marangoni convection is generated in the upper portion of the fluid due to imposed temperature gradient along the top free surface. The transient phenomena of the combined effects are analyzed numerically in dimensionless forms utilizing an in-house CFD code. The analyses are conducted under different pertinent parameters such as Marangoni number, Biot number, Reynolds number and Richardson number. The study is conducted to explore the flow-field structures and heat transfer characteristics in the presence of three convection modes with their relative strengths.
A Numerical experimentation on fluid flow and heat transfer in a SCPP
Authors: Mandal D. K. , Goswami P. , Pradhan S. , Chakraborty R. , Khan N. A. , Bose P. 
Published: February 2021

Abstract
Solar chimney power plant (SCPP) is a promising unit of power generation from renewable energy source in near future. Apart from climatic conditions, the performance of the unit depends on design parameters of plant. To understand the performance of the unit, fluid flow and heat transfer study is essential throughout the unit. In present work, a numerical study has been conducted to see the effect of inlet area on the performance of the unit through fluid flow and heat transfer. Numerical solutions of the steady turbulent flow are carried out by commercial software Fluent. A finite volume method has been employed to solve the governing equations. It is revealed that the considered plant having inlet height of 5cm performs better than that of having the inlet height10cm.