bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Development Planning of the InaCORS BIG for Disaster Climate Environment and Hazard Mitigation
Authors: Safií Ayu Nur , Susilo  , Wibowo Sidik Tri 
Published: October 2022

Abstract
In the last decades, the development of the Indonesian Continuous Reference System (InaCORS) that installed by Geospatial Information Agency (Badan Informasi Geospasial/BIG) and National Land Agency (Badan Pertanahan Nasional/BPN) have been increasingly very rapidly. With the increasing development of InaCORS, it will be useful for purposes in various fields such as environmental disaster climate and hazard mitigation. The InaCORS sites should be installed in the selected area which services of positioning application can be maximized. There are several parameters that used to determine the location of InaCORS, such as existing location of InaCORS (BIG and BPN), tectonic plate boundaries, volcanoes, and land use system. By overlaying all parameters, We analyze using 50 km buffer for each site to determined which location that does not have service from InaCORS sites (blank are). The result shows that the distribution of InaCORS stations in the Papua island, Kalimatan island, small area in Sulawesi island and Sumatra island should be improved more. This information is very useful to analyzing the needs of InaCORS stations for Indonesia region, exspecially for as monitoring of environmental disaster climate and hazard mitigation
Building emergency infrastructure requirement to enhance urban resilience for earthquake: A case study of Surabaya building regulation
Authors: Pamungkas A , Larasati K D , Iranata D 
Published: October 2022

AbstractThe high potential impact of an earthquake in Surabaya City increases the urgency of the city to prepare for the emergency due to the earthquake event. One of them is to equip the landowners with building emergency infrastructures to ensure disaster survivors can meet daily needs during emergencies. The proposed emergency infrastructures are building emergency utilities, emergency facilities, and building evacuation systems. The proposed emergency infrastructures should also be accessed by the building residents and all the communities surrounding the buildings. Those additional proposed emergency infrastructures complement current building regulations in Surabaya. Therefore, modifying current building regulations may fasten up the city in providing emergency infrastructures on a city scale.
Strategies to Realize Prosperity for Provinces With Islands in Indonesia
Authors: Adhayanto Oksep , Nazaki  , Rahmawati Nanik , Arianto Bismar , Suwardi Nurhasanah , Subiakto Rudy , Suryadi  , Darmawan Eki , Pratama Ryan Anggria 
Published: October 2022

Abstract
The purpose of this research is to formulate a strategy for the welfare of the people in the archipelago by increasing funds in the regions. Currently, there are still many problems faced by the provincial government, which is an archipelagic province with many marine resources but little distribution of general allocation funds. These include poverty and welfare issues. A special approach is needed to overcome this problem by finding solutions based on laws and regulations. This type of research is descriptive qualitative with a literature and legislation approach. The conclusion of this research, first, it is necessary to reformulate the calculation of the general allocation fund which includes the sea area as an indicator of the calculation. Second, urging the ratification of local government regulations on islands as mandated in local government laws. Third, accelerate the discussion and ratification of the Archipelago Bill.
Study on river water treatment by photocatalysis using metal-modified titania nanotubes
Authors: Thuy Nguyen Thi , Diem Ngoc Vo Tran , Cam Tien Nguyen Thi , Thanh Dang Van , Thanh Nguyen Trung , Khoi Tran Tien , Huy Nguyen Nhat 
Published: October 2022

Abstract
This study aimed to treat river water for domestic water supply purposes in the South of Vietnam by photocatalysis. Since the pre-treatment of traditional coagulation was effective in removing turbidity and other pollutants, the photocatalytic step was mainly applied for the removal of organics and disinfection of pathogens. The titanium nanotubes (TNTs) was synthesized by hydrothermal method using Degussa P25 precursor and the TNTs was then impregnated with 12 metal salts (i.e., MgCl2, ZnSO4, SnCl2, MnSO4, Fe(NO3)3, Cu(NO3)2, and Ni(NO3)2, Al(NO3)3, CrCl3, Cd(NO3)2, Sr(NO3)2, and Co(NO3)2) under various molar ratios and different heating temperatures. Among these materials, the TNTs modified with Ni(NO3)2 solution provided the best organics and Coliforms treatment. Operating conditions of the photocatalytic process such as light irradiation, catalytic dosage, pH, and water sources affecting the pollutant treatment efficiency were evaluated. The results showed that TNTs which was prepared at pH 1.6, impregnated with Ni(NO3)2 at 1% molar ratio, and calcined at 400°C for 2 hours were able to treat organic contents at 83.33% removal efficiency and completely removed Coliforms under UVA irradiation for 20 min. We hence suggest this material as a promising photocatalyst for organic content removal and disinfection of surface water for drinking water supply.
CFD Simulation into the Spread of Covid-19 in a Passenger Deck of a Sea Transportation Model
Authors: Panggabean G R , Suastika I K , Hermawan Y A , Nugroho B , Utama I K A P 
Published: October 2022

Abstract
COVID-19 is a type of disease that emerged at the end of 2019 and can cause respiratory system disorders, ranging from mild symptoms such as flu to severe symptoms such as pneumonia. According to data released by WHO, in October 2020, the fatality rate caused by COVID-19 in Indonesia was 3.5%. Long-distance sea transportation with a large passenger capacity, in a countrylike Indonesia, has the potential to be one of the main locations for the spread of COVID-19 virus. To obtain the proper information, a numerical CFD RANSE based simulation is carried out on aneconomy-class passenger deck. The deck has a size of 14.1 meters x 15 meter together with maximum capacity of 206 passengers. The CFD simulation involves 3 main components, namely, air inlet, air outlet and mouth inlet, and k-epsilon turbulence modelling is used because it predicts well far from theboundaries. Finally, the simulation is expected to reflect the real situation of indoor transmission in a sea transportation vehicle in order to reduce the victims and provide a mitigation plan due to the spread of virus.
Bibliometric Analysis Of Fisheries Policy Articles In The Journal Scopus Written By Authors From Affiliates Of The 10 Best Universities In Indonesia
Authors: Darmawan Eki , Widianingsih Ida , Mulyawan Rahman , Rahmatunnisa Mudiyati 
Published: October 2022

Abstract
Considering that maritime and sea is the direction of Indonesia’s development going forward, it is necessary to study the development of Indonesia as a maritime and sea as the basis of development policies. But have the best campuses in Indonesia been thinking that way? need to be mapped by bilbiometric analysis. This study aims to analyze the bibliometric characteristics of articles on fisheries policy published in Scopus indexed journals by authors affiliated with the 10 best universities from Indonesia in Webometric 2021. Data entry is carried out in the range of 2010 to 2021. The method used is bibliometric analysis and publication content in the Scopus database. There are as many as 88 articles from Indonesia based on fisheries policy keywords published from 2010 to 2021 with affiliates of the 10 best universities in Indonesia. The findings show that from the affiliations of universities that have been categorized as the best, there are university of Indonesian as universities with a high level of productivity in publishing fisheries policies in Scopus publications. The highest ranking is based on the number of published articles and high citations. In conclusion, Indonesia with a country that has such a wide ocean or can be said as a maritime country is still not productive in discussing fisheries policy in the international world.
Simulation separation of triglycerides from Calophyllum inophyllum oil with continuous countercurrent extraction process using Aspen HYSYS
Authors: Gunawan S , Yuliasari N , Permatasari E N , Mawarni R R , Juwari  
Published: October 2022

Abstract
The trends of industry 4.0 transform a process design to a cost-effective development with digital simulation. The objective of this study was to simulate the separation and purification of triglycerides from crude Calophyllum inophyllum oil with a continuous countercurrent extraction method using Aspen HYSYS V.11 to find the appropriate binary parameter coefficients and predict the optimal conditions. It is expected that the oil’s purity suitable with the edible oil standards (minimum 96% triglycerides and 0.3% free fatty acids). The variables used are the flow rate (n-hexane + oil) to methanol and the total mass ratio of solvent to oil. The C. inophyllum oil used contains 63.91% triglycerides, 15.76% free fatty acids, 12.25% diglycerides, and 4.66% monoglycerides. It was evaluated by applying NRTL (Non-Random Two Liquid) and UNIQUAC (Universal Quasi Chemical) fluid packages with binary interaction parameters of UNIFAC-VLE, UNIFAC-LLE, Immiscible, and Modified (fitting parameters). The most suitable fluid package and binary interaction parameter pairing was achieved by combining NRTL fluid package with Modified binary interaction. The highest purity of triglycerides was 92.86%alongside a simulation error of 0.01% while the free fatty acid was 2.17% and 0.91%, respectively, at solvents (hexane and methanol) to oil mass ratio of 6:1 with a hexane-oil to methanol flow rate ratio of 6:15 (LPH/LPH). By upscaling the n number in the extractor, this model can predict the best result of separation and purification of triglycerides with the highest purity of triglycerides and free fatty acids were 96.736% and 0,0001%, respectively. Thus, the edible oil standards can be met.
Comparing Life Cycle Assessment of Fish Preservation Method on Fishing Vessels in Indonesia
Authors: Wibawa P.A. , Birmingham R.W. , Warmadewanthi I.D.A.A 
Published: October 2022

Abstract
The economic benefit that the fishermen can obtain primarily depends on the quality of their catches. Therefore, it is essential to ensure that the caught fish stays fresh until entering the market. The most common fish preservation on traditional fishing boats in Indonesia is block ice, which must be carried in the fish hold from the home port. In comparison, another alternative method for fish preservation is the Flake Ice machine that can produce ice on-board. The study on Life Cycle Assessment (LCA) was conducted on these two fish preservation methods to understand the environmental impact of each technique. For undertaking the assessments, LCA software known as SimaPro was employed. The system boundary for the LCA about fish preservation applied the “well to wheels” approach and covered the whole service life of the vessel for the full consecutive 20 years of operation. The functional unit for the assessment was fish preservation of 4 tonnes during a 7-day fishing trip. The input of the evaluation was the materials and energy required to produce the amount of ice or to operate a refrigeration system for each year of the vessel’s operation, with a total of 30 trips per year. The paper explored the environmental impact of these two fish preservation methods in terms of Ozone Layer Depletion and Global Warming.
Numerical Comparison of B20 Biodiesel and Petroleum Diesel in terms of Performance, Combustion, and Emission at Constant Speed
Authors: Ariani Betty , Wahyudi Dedy 
Published: October 2022

Abstract
To achieve energy efficiency and emission reduction in the shipping sector use of alternative marine fuel is one of the programs implemented. This study on alternative fuels is an active response to increasingly stringent emission regulations and the limited supply of fossil fuels. In addition, an operational feasibility study is an important thing. The method used in this research is computational fluid dynamics to see how the engine performance, combustion, and emissions when using biodiesel B20 at a constant speed of 2200 Rpm compared to when using petroleum diesel. From the results of the numerical comparison study, the use of B20 compared to petroleum diesel, there was an increase in engine performance the level of fuel consumption was higher. The use of B20 causes CO and UHC emissions to decrease while NOx increases compared to petroleum diesel.
Scleractinian recruits on natural and artificial substrates in temporary sediment-challenged coastal water of Bangkalan, Madura Island, Indonesia
Authors: Muzaki F K , Saptarini D , Armono R H D , Setiamarga D H E , Azizah I R , Aunurohim  , Pradana F E 
Published: October 2022

Abstract
Recruitment of coral juveniles could serve as indicator for potential of coral reef recovery and is a critical process in supporting population as well as facilitating recovery after event of disturbance. However, sediments suspended in the water column and settling on to reef surface can negatively influence the distributions and abundances of reef-building corals, including altering the settlement patterns and survival of coral larvae and new recruits. In this study, we compared the density and diversity of Scleractinian recruits on natural substrate and artificial reef (made of concrete; 2 years after deployment) in the relatively turbid water of Sepulu coastal water, Bangkalan – Madura Island, East Java. Observation of stony coral recruits were conducted in-situ at depth of 3-4 meter in two locations. At the end of the study, we identified 18 species of Scleractinians from 10 genera and 7 families; dominated by Goniopora (F. Poritidae), Galaxea (F. Euphyllidae) and Goniastrea (F. Merulinidae). There was no difference in term of species richness and composition among locations and type of substrate. However, in both locations, more recruits grown in concrete artificial reef (15.2±2.61 - 18.3±2.91 unit/m2) compared to natural substrate (4±1.25 - 4.1±1.29 unit/m2), respectively. These findings suggest that concrete artificial reef is applicable for coral reef restoration and rehabilitation in temporary turbid coastal water by providing suitable substrate for larval recruitments.
Wave transmission model over hexagonal artificial reefs using DualSPHysics
Authors: Armono Haryo Dwito , Manurung Adelbert , Sujantoko  , Ketut Suastika I 
Published: October 2022

Abstract
The functions and uses of artificial reefs have evolved from a method of coral reefs restoration to a coastal protection system. The artificial reef can reduce the hydraulic load on the coast to the level required to maintain shoreline balance. Various materials and shapes of artificial reefs have been introduced. This paper discussed the wave transmission over the hexagonal-shaped artificial reef with six holes on each side. The study was conducted using the Smoothed Particle Hydrodynamic (SPH) method integrated into DualSPHysics software to see the effect of gaps between structures with a predetermined configuration on the value of the transmission coefficient (Kt). It was found that the arrangement with no gap could absorb waves better than the configuration with a gap of 0.15 m and 0.112 m based on the Kt value obtained. In terms of hydrodynamics, it was found that: (1) The increment of the wave steepness, the smaller the Kt value obtained, (2) The larger the wave height, the smaller the Kt value at 0.1 m freeboard depth. However, on the freeboard with a depth of 0.2 m and 0.3 m, it was found that the greater the wave height, the greater the Kt value, (3) the increment of the wave period, the Kt was higher, and also (4) the higher the freeboard, the higher the Kt values.
Low Cost GNSS Trimble BD982 and U-blox Performance Test Analysis F9 Series for Several Measurement Methods (Case Study: Sidoarjo Regency)
Authors: Ubaidillah M R , Cahyadi M N 
Published: October 2022

Abstract
Global Navigation Satellite System (GNSS) is a tool that can assist community activities, especially in navigation and positioning for mapping surveys. This tool has an accuracy of up to millimeters for determining the position of latitude and longitude, but to get this accuracy requires an expensive cost, which is more than 200 million rupiah. Currently the development of GNSS receivers is very rapid, one of which is a low-cost GNSS product. The advantages of this receiver are that it has a low cost, light weight and an accuracy of up to centimeters for determining latitude and longitude positions. In this study, we have conducted trials using a low-cost GNSS receiver from several products such as U-blox, Trimble, and Comnav. For products from U-blox in this study, the F9P and F9R series were used. The F9R series is one of the receivers that has been integrated with the inertial measurement unit (IMU)/inertial navigation system (INS), the benefit of this integration is to improve position accuracy when data collection using the kinematic method. Products from U-blox have position accuracy below 1 meter. Meanwhile, the series used in Trimble and Comnav products are Trimble BD982 and Comnav Oem Board K708 which have accuracy below 1 centimeter. The purpose of this activity is to compare all these receivers by using Comnav OEM Board K708 data as validation data. Several parameters in this study will be analyzed such as the number of satellites obtained by the receiver, position accuracy and various other analyzes. The measurement methods that will be carried out in this study are static differential and Real Time Kinematic (RTK) measurements that utilize direct corrections from Continuously Operating Reference Stations (CORS) and deformation observations. The results of the first analysis obtained in this activity are the number of satellites obtained by the U-blox F9 series receiver which is more stable to receive satellites, namely as many as 24-29 satellites, then Trimble BD982 as many as 2-32 satellites, and Comnav K708 receivers as many as 3-28 satellites. Meanwhile, the Dilution Of Precision (DOP) values for 4 receivers, namely K708, F9P, and F9R, have stable values ranging from 0.5-1 compared to the BD982 receiver which fluctuated in several observation epochs, especially in the last observation epoch. In observations using the static differential method, using corrections from CORS for positioning this receiver can be used because the difference in position data is in the range of 0.009 m - 0.040 m from reference data (receiver K708). Meanwhile, the data receiver that has been integrated with IMU/INS (F9R) kinematic method has the smallest position difference value (K708) compared to other receivers, which is from 0.001 m - 8.091 m. In testing for deformation measurements, further research needs to be done because the data obtained is still in the form of a simulation.
Recovery of Ca2+ and SO4
2- from Bittern Wastewater using Electrodialysis Method
Authors: Trihasti Kartika Sucahyaning Wahyu , Bagastyo Arseto Yekti 
Published: October 2022

Abstract
The recovery of bittern is expected to obtain the added value products and minimize untreated wastewater disposal generated from the salt industry. Bittern is a waste stream resulted from the crystallization of the salt production process, consisting of a concentrated mineral in liquid form, known as the mother liquor of salt. The dominant minerals that can be recovered in bittern are calcium (Ca2+) and sulfate (SO4
2-), and salts such as calcium chloride, potassium sulfate, sodium chloride, and calcium sulfate, which are commonly found in bittern wastewater. In this study, mineral recovery of bittern was conducted by applying cylindrical membrane electrodialysis technology, due to the high demineralization rate and the applicability on fluctuating composition of the feed. This study determined differences in applied electrical current, temperature conditioning, recirculation flow rate, and specific energy requirements based on the optimum process. This research was conducted in the applied current of 5A, 7.5A, and 10A. Then, the temperature conditioning in the feed tank with a range of 25°C – 35°C, 36°C – 45°C, and without conditioning. The applied flow rate recirculation was 30 L/h and 36 L/h for 5 hours electrodialysis time. The highest removal efficiency was 31.57% and 35.03%. This result was achieved at 30 L/hour of flow rate recirculation, 10 A, and 40°C for Ca2+ and SO4
2-. Furthermore, the recovery efficiency of the ionic products was 30.17% and 27.62% for Ca2+ and SO4
2-, respectively.
Determination of Water Quality Status Using the STORET Method and Identification of Pollutants in the Kobe River, Central Halmahera Regency
Authors: Marengke M K S , Nurhayati E 
Published: October 2022

Abstract
The Kobe River is one of the rivers in Central Halmahera Regency which is used for households, irrigation, fisheries, animal husbandry, and plantations. The Kobe River is located around the mining area which causes the condition of the Kobe River to decline. This study aims to determine the quality status of the Kobe River and identify the pollution that occurs in the river. The study began by collecting primary data in the form of water quality tests with parameters of temperature, DO, TSS, and Ammonium at 5 sampling locations. This study determines the Quality Status using the STORET method which refers to the Decree of the Minister of the Environment No. 113 of 2003 based on the value system of the US-EPA (Environmental Protection Agency). The results showed that the determination of the quality status of the Kobe River was getting a score of 0 which was included in class A in the very good category with the status of the Kobe River meeting the quality standards so that it could be used according to its designation. Then obtained sources of pollution in the form of domestic waste and mining activities from PT Weda Bay Nickel and PT Tekindo Energy. Pollution control strategies that need to be carried out are determining the Pollution Load Capacity (DTBP) of the Kobe River, making communal wastewater treatment, making the study of the Kobe River DTBP as a basis for granting permits, and increasing law enforcement for activities/businesses that violate.
Influence of workpiece tolerances on the fixtures design. Case study
Authors: Stanasel I. , Blaga F.S. , Tocut P.D. , Groza M.D. , Stanasel C.M. 
Published: October 2022

Abstract
The tolerances of a part influence both the operation of the assembly of which it is part and the technological manufacturing process. High tolerances can lead to an assembly that does not work at the designed parameters, and low tolerances require additional machining operations that increase the cost of the part. The manufacturing series is another factor that influences the technological process. Large series production requires special facilities in terms of processing and control equipment which are needed in the manufacturing process. The paper presents a case study on the influence of tolerances of a part being produced in large series on the construction of the orientation and clamping device used in machining. Starting from the dimensions indicated in the design drawing, a first version of the fixture is proposed in which the parts are fixed and the tolerance of the closing dimension of the assembly of parts is analysed using the Worst Case and Root-Sum-Square methods. Since the closure size tolerance is outside the recommended range, another variant of orientation and fixture is proposed. By re-analysing, the closing dimension tolerance by the two methods mentioned above it was confirmed the necessity of modifying the part width tolerance. The analysis of the tolerance of the closing quota is resumed by the two methods mentioned above and the result confirms that it is necessary to change the tolerance to the width of the piece. The tolerance verification of the closure dimension of the assembly formed by the parts fixed in the device is performed by Monte Carlo simulation.