bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fe doped LiNi0.8Co0.15Al0.05 O2 (NCA) cathode materials: Synthesis, structural and morphological studies
Authors: Isti’Adzah L , Kasim M F , Elong K A , Azahidi A , Saaid F I , Mohamad A A 
Published: December 2023

Abstract
As a result of its substantial energy density, layered LiNi0.8Co0.15Al0.05O2 cathode materials are thought to be the most promising of the next-generation cathode materials for electric vehicles (EVs). In this research, self propagating combustion (SPC) is used to prepare cathode materials made of pristine LiNi0.8Co0.15Al0.05O2 (NCA) and NCA doped with 1% Fe to produce LiNi0.8Co0.14Fe0.01Al0.05O2. Based on X-Ray Diffraction (XRD) results, pristine and doped NCA cathode materials were pure and single phase. Reference Intensity Ratio (RIR) values for pristine and doped NCA are 0.87 and 1.12 respectively indicating that the amount of cation mixing was reduced with Fe doping. Through Rietveld refinement, it was discovered that the addition of Fe to NCA resulted in a decrease in cation mixing from 13.56% to 4.07%.It was found that both pristine and doped NCA possessed polyhedral like shape morphology. It can be seen that doping with 1% Fe does not change much in the crystallite size of the materials. By having less cation mixing, Fe doped was found to greatly improve the structural integrity of NCA cathode materials, which in turn improved the materials’ electrochemical performance.
Electric vehicle energy consumption modelling and analysis: a Malaysia case study
Authors: Hashim Mohd Syahmi , Mansor Muhamad , Ying Yong Jia , Ramachandaramurthy Vigna Kumaran , Rahman Nazaruddin Abd. 
Published: December 2023

Abstract
Previously, the Electric vehicle (EV) range anxiety greatly hindered EV adoption. The fear of being stranded due to running out of battery becomes the main concern among EV drivers. This critical issue can be solved by deploying a bigger battery in EVs. However, deploying bigger size battery contributes to the higher price of the EV itself. Hence, the optimal design of the EV powertrain is a critical factor in ensuring EV meets the users’ needs and, simultaneously, can be owned by the potential owners at an affordable price. Accurate assessment of EV energy consumption is crucial in designing an optimal EV powertrain, particularly for developing energy-efficient driving techniques in both manual and autonomous driving. One method is to perform a real-life experiment to determine the EV energy consumption, which is expensive and time-consuming. An alternative to real-world testing is creating an EV energy consumption model with the existing driving cycles. This paper studies the parameters contributing to EV energy consumption based on EV driving cycles available in MATLAB Simulink. The findings of this study will provide insight into the factors that influence EV energy consumption and serve as a guideline in EV powertrain design.
Collective water transport electrification: Venetian ferry boat case study
Authors: Colombo Cristian Giovanni , Saldarini Alessandro , Longo Michela , Brenna Morris , Borghetti Fabio 
Published: December 2023

Abstract
This paper studies and analyzes the energy transition of ferry boats used in Venice as a means of public transportation. Thus, the goal is to reduce their environmental impact by replacing the current installed thermal propulsion with an equivalent low-emission electric type. A study was conducted aimed at sizing the most suitable electric motor and battery pack to be installed, as well as the most suitable charging system for the vehicle and the area involved in this case study. The shift to electric traction will bring new challenges for the service, but also the possibility to decarbonize the water transport in Venice, preserving air quality and the monuments of the UNESCO site. Therefore, it is noted how these changes may impact service delivery.
Vehicle-to-grid system optimization for electric vehicle – a review
Authors: Abu Hassan M A , Abdullah Ezmin , Nik Ali N H , Hidayat Nabil M , Umair Muhammad , Bin Johari Ahmad Rais 
Published: December 2023

Abstract
The transportation industry is a major contributor to global greenhouse gas emissions, and the adoption of electric vehicles (EVs) presents a viable solution to this problem. The implementation of vehicle-to-grid (V2G) systems has significantly enhanced energy supply and utilization efficiency, particularly through the integration of renewable energy sources such as solar and wind. However, the complexity of the V2G system necessitates addressing multiple objectives and constraints. Previous research has employed optimization methods to refine the V2G system. However, traditional linear and quadratic programming approaches are limited to simple and linear objectives, while non-linear programming methods encounter challenges when dealing with uncertain variables. Consequently, there is a pressing need for a more dependable optimization method capable of managing uncertain variables in this intricate system, particularly in the context of renewable energy source integration. This paper reviews the feasible and reliable optimization approaches utilized by scholars and researchers, examining the multiple objective functions and constraints required for optimizing the V2G system.
Consumption rate of stingrays in the southern coastal area of Flores Island
Authors: Nawastuti Dati , Darwanto Dwidjono Hadi , Mulyo Jangkung Handoyo , Suadi  
Published: December 2023

Abstract
Stingrays are an elective wellspring of creature protein for individuals living in the southern coastal area of Flores Island. Considered to have low economic value, the presence of stingrays in the Chondrichthyan meat trade is still often ignored. This study seeks to determine the influencing factors on the consumption rate of stingrays among the people of the southern coastal area of Flores Island. The analytical method used is descriptive analysis and multiple linear regressions with the SPSS 23 program. Essential information was gotten through perception, circulating polls by means of a google form, and inside and out interviews. The answers of respondents who entered amounted to 132 people and were selected based on the research area amounted to 46 people. Results stated that the variables of income level, education level, place of residence, number of dependents, product knowledge, fish products, and fish species had a significant simultaneous effect on consumption levels with an R2 value of 0.764 percent, while 23.6% of the dependent variable is influenced by other variables that are not part of the research model. Intensive socialization among consumers, especially those who have a high level of education regarding the types of stingrays in protected regional languages and should not be consumed is very necessary. Knowledge gaps which, if not addressed immediately, will disrupt conservation area management.
A case study of anchovy diurnal migration patterns in Teluk Bakau, Bintan Regency, Riau Island, Indonesia
Authors: Febrianto Try , Ma’mun Asep , Pratomo Arif , Kurniawati Esty , Suhana Mario Putra , Apdillah Donny , Zahid Ahmad 
Published: December 2023

Abstract
Teluk Bakau is an area of water on the shore of Bintan Regency where the people make their livelihoods through fishing. There is now a lot of data showing a decline in catches, but it is unclear why this is happening. Changes in migratory patterns are regarded to be one of the primary reasons. The daily diurnal migratory pattern of anchovies is assumed to correspond with the movement of plankton. Anchovies are a type of tiny fish larvae whose life cycle is tied to plankton. It is possible to see microorganisms by converting the mean volume backscattering strength (MVBS) value into a measure of anchovy quantity and presence. Anchovy diurnal vertical migration was discovered using Diel Vertical Migration (DVM) measurements, which also revealed that the fish were in the MVBS range of -40 dB to -60 dB (e.g. FL: 5–10 cm). The migration of anchovies seen by ADCP shows they typically move towards the surface in the afternoon and that their numbers generally expand until night. Along with this an increase of anchovies, a lot of plankton has been rising to the surface. The presence of an anchovies moves into deeper waters in the early morning, and until daytime, they are decreasingly abundant. An indication that anchovies are increasingly plentiful and more present is in the afternoon
Business Analysis of Processed Baby Squid Chili Products (Micro, Small and Medium Enterprises MSMEs “Dapoer Ikan Diana”): Case Study in Samarinda City, East Kalimantan, Indonesia
Authors: Sugiharto Eko , Purnamasari Elly , Sukarti Komsanah 
Published: December 2023

Abstract
Micro, Small, and Medium Enterprises (MSMEs) are the most essential pillar in the Indonesian economy. One of them is Dapoer Ikan Diana, which is a processing business using fish-based ingredients. In running a business, it is inseparable from the costs incurred. This research aims to calculate the business profits of MSMEs Dapoer Ikan Diana, conducted from December 2021 to November 2022. This study used purposive sampling, obtaining the sample from one respondent, who is a business owner The result showed that there were two types of investment costs incurred, namely production investment costs of IDR 10.680.714 with depreciation costs of IDR 90,767/month and marketing investment costs of IDR 10,565,925 with depreciation costs of IDR 132,262/month. Operational costs are divided into two types, namely production operational costs incurred in the amount of IDR 2,069,950 with a total cost (TC) of IDR 8.626.707/month and marketing operational costs incurred in the amount of IDR 4,271,675 with a total cost (TC) of IDR 13,121,411/month. The revenue obtained is IDR 14,400,000/month. The business profit obtained is IDR 1,278,589/month.
Estimation of carbon storage of tropical mangroves in the North Maluku Islands region
Authors: Najamuddin  , Tahir I , Pujiati M I , Harahap Z A 
Published: December 2023

AbstractThe mangroves possess a remarkable capacity to absorb carbon dioxide (CO2), surpassing tropical rainforests by fourfold. This underscores the crucial role played by mangroves in global efforts to combat climate change. This study aimed to assess the biomass, carbon content, and CO2 absorption capabilities of mangrove ecosystems. Data collection followed the line transect method, utilizing the Mangrove Watch guide, which involved recording the diameter of mangroves at breast height (DBH), typically around 1.3 meters above the ground, as well as identifying the mangrove species and quantifying the number of stands for each tree species. The analysis of mangrove biomass, carbon content, and CO2 absorption capacity was conducted through an allometric modeling approach. The findings revealed the presence of seven distinct mangrove tree species at the study site, namelyRhizophora mucronata, R. apiculata, R. stylosa, Sonneratia alba, Bruguiera gymnorrhiza, Xylocarpus granatum, andCeriops decandra. The mangrove density in this area was recorded at 1406 trees per hectare, with a corresponding biomass of 630,508 tons per hectare, a carbon content of 246,035 tons of carbon per hectare, and an impressive CO2 absorption capacity of 902,127 tons of CO2 per hectare. Notably, the mangrove vegetation in this research site exhibited a substantial capacity for CO2 absorption and biomass storage, surpassing many other locations in different regions. These findings underscore the significant role that island mangrove ecosystems can play in mitigating the effects of climate change.
First record and phylogenetic relationship of the endangered species Betta foerschi (Vierke, 1979) (Anabantiformes : Osphronemidae) from Belitung Island, Indonesia
Authors: Syarif AF , Valen FS , Herjayanto M , Aisyah S 
Published: December 2023

Abstract

Betta foerschi (Vierke, 1979) is a betta fish group from the Osphronemidae family which is only known from Central and West Borneo Island, Indonesia. This species is classified as an Endangered (EN) by the IUCN Red List, where the population has recently been moderately decreased. The new distribution of B. foerschi fish has been found on Belitung Island based on morphological similarities. In this research, we report the first record and phylogenetic relationship of B. foerschi based on the DNA Barcoding method using the Cytochrome C Oxidase Subunit I (COI) gene from Belitung Island Indonesia. Additionally, the DNA barcoding for B. foerschi not only represents the first DNA record for Belitung Island, but also the first sequence reported in the Genbank database. The result showed that B. foerschi forms the same clade within the Osphronemidae family and Betta genus solidifying its position in this taxonomic group with the closest genetic distance that occurs between B. foerschi and B. persephone of 0.15 using the Maximum Composite Likelihood model analysis.
Profile of fisheries capture in Cikidang Fish Landing Base (PPI), Pangandaran, West Java Study 2017-2021 and its potential utilization for fisheries product processing industry
Authors: Yuniarti T , Mulyono M , Mardiana M , Nurmala I , Puspadewi I J , Triyono H , Alauddin M H , Handoko Y P , Maulita M , Maulani A 
Published: December 2023

Abstract
Fishing activities in Pangandaran Regency are centered in Cikidang Fish Landing Base (PPI), Babakan Village, Pangandaran Sub-district, Pangandaran Regency, West Java Province. The research objective is to identify the fishing profile in Panagandaran Sub-district during 2017-2021 and identify its potential utilization for the fishery product processing industry. The research method is descriptive data collection. The research location is in Pangandaran sub-district. Data taken are secondary and primary data from 2017-2022. Respondents are Joint Business Groups (KUB) based on Cikidang PPI, Pangandaran Regency Marine Fisheries and Food Security Office, Head of Cikidang PPI, and Pangandaran District village leaders. The results of the study identified the age profile of respondents aged 55-59 years (55%), basic education level (75%), 31-35 years of fishing experience (25%), no side job (85%), monthly income of 1-2 million (60%). The types of fishing gear used by fishermen are Vessel Seine, Drift Net, Liong Bun, Hand Line and seser. The dominant types of fish catches in a row from the highest in 2017 to 2021 are Rebon Shrimp, Yellowfin Layur, Krosok Shrimp, Dogol Shrimp, White Bawal and fish bycatch. By-catch fish are in the top 4 most abundant fish caught using vessel seine and drift net gear. Most of the by-caught fish from middlemen are made into salted fish. Fishing activity decreased in 2020-2021, but the value of fishing production increased. The utilization of caught fish is mostly salted fish, yet to be utilized for the fishery products industry.
The growth rate and antibacterial activity of lactic acid bacteria GMH2 and GMH3 in various salt concentration
Authors: Rosanto A N , Lestari R I , Putra M M P 
Published: December 2023

Abstract
Lactic acid bacteria (LAB) can be naturally found in fermented fish products that contain various salt concentrations. LAB is reported to produce proteinogenic antibacterial compounds named bacteriocin that can inhibit the growth of pathogenic and spoilage bacteria. In order to evaluate the performance of previously isolated LABs, namely GMH2 and GMH3, to inhibit the growth of these bacteria in fermented food systems, it is necessary to examine the effect of salt concentration on the growth rate and antibacterial activity. LAB GMH2 and GMH3 were inoculated on de man rogosa and sharp broth (MRSB) at various salt concentrations, including 0%, 7.5%, and 15%, followed by incubation at 37°C for 30 hours with observation every 6 hours. Bacterial growth was tested using the Total Plate Count (TPC) method, which was then further processed using the DMFit program to obtain growth rates, while antibacterial activity was tested using the macrodilution method against histamine-producing bacteria (HPB) Klebsiella pneumoniae (CK2). Both strains showed the highest growth rate at 0% NaCl, with 0.171 and 1.681 log CFU/hour for GMH2 and GMH3, respectively and remained steady until 7.5% salt concentration at 0,153 log CFU/hour for GMH2 and 0.044 log CFU/hour for GMH3. Antibacterial activity for both isolates showed the highest inhibitory value of 39.87±2.25% for GMH2 and 79.55±1.08 for GMH3. The addition of 7.5% and 15% interestingly did not show a significant reduction in antibacterial activity. The results of this study concluded that LAB GMH2 and GMH3 have the potency to be used as starters in fish fermented products, which possess up to 7.5% salt content.
Leaf extract effectiveness of pecut kuda (Stachytarpheta jamaicensis L. Vahl) on barramundi (Lates calcarifer) eggs hatchability
Authors: Hartami P , Mahdaliana  , Mainisa  , Adhar S , Hatta M , Ayuzar E , Hanum DF , Rasidi  
Published: December 2023

Abstract
Barramundi is one of the preferred fishes in great demand because of its delicious taste and high nutritional content. One factor that influences the success of culture is hatchability and high larval survival. In the business of barramundi aquaculture, problems are often encountered, namely the presence of fungi that attack fish eggs. Precautions and treatment use of continuous synthetic compounds with improper concentration will cause new problems. The traditional pecut kuda anti-fungal, this plant is also easily obtainable and easy to use in the prevention and treatment of fish diseases. The purpose of this study was to analyze the success rate of using pecut kuda (Stachytarpheta jamaicensis L. Vahl) in increasing the hatchability of barramundi eggs and observing the growth of barramundi larvae. This research was conducted on July 25 – August 16, 2022. Located at Brackish Water Cultivation Fishery Center, Ujoeng Batee, Aceh. This research method used a completely randomized design with 5 treatments and 3 replications, namely P1 (0 ml/control), P2 (2 ml/L), P3 (4 ml/L), P4 (6 ml/L), and P5 (8 ml/L). Observation of the data collected during the research was presented in the form of tables and graphs. The results showed that pecut kuda leaf extract at different doses affected the hatchability of eggs, percentage of fungus attack, and mortality of barramundi larvae, while it did not affect the abnormality and growth length of barramundi larvae. The best treatment at P3 with a dose of 4 ml/L was 90.33% of the hatching rate with a low mortality value of P3 was 11.80%.
Towards a Customizable and Cost-Effective Monitoring System for Vannamei Shrimp Cultivation
Authors: Aynuddin  , Triyatmo B , Rakhmanda A 
Published: December 2023

Abstract
The advancement of technology has revolutionized the operational practices in vannamei shrimp (L. vannamei) cultivation, shifting towards a science-based and data-driven approach. The success of shrimp cultivation heavily relies on making informed technical decisions throughout the process. To facilitate optimal decision-making, an integrated monitoring system encompassing feed-growth data, water quality data, and material inputs is imperative. This research aims to design a customizable system that optimizes available resources and offers easily modifiable and adaptable program scripts for users. The development process involved constructing a prototype device, script development, and system implementation testing. The prototype incorporated three sensors (temperature, pH, and dissolved oxygen) and utilized floats for flexible customization based on specific needs and available sensors or materials. Data analysis and visualization were achieved through various free options. Remarkably, the system only required 2-3 concise scripts to operate effectively. The experimental results demonstrated the system’s potential for broader application and future development. The proposed monitoring system provides a cost-effective solution, offering flexibility, reliability, and valuable data-driven insights to enhance decision-making in vannamei shrimp cultivation.
Pathogenic bacteria contaminant and heavy metal content in peeled green mussels sold in the traditional market in Yogyakarta Indonesia: a case study in 2022
Authors: Suwito W. , Andriani  , Barokah G. R. 
Published: December 2023

Abstract
Food is needed to prevent foodborne illness. This study aimed to detect pathogenic bacteria contaminants and heavy metal content in peeled green mussels sold in the traditional market of Yogyakarta, Indonesia. This research is a descriptive study with random sampling. A total of 33 samples examined E. coli., and Salmonella sp., contamination based on the most probable number (MPN) method whereas heavy metal content by atomic absorption spectrophotometry (AAS). Contamination of E. coli., and Salmonella sp., were 33.3% and 9.09% respectively, exceeded by SNI 7388:2009 limits of microbial in food contamination (MPN Salmonella sp., negative/25g and MPN E. coli., <3/g). The levels of Pb and Hg in the food sample were found to be above the limit set by the Food and Drug Supervisory Agency of the Republic of Indonesia in 2018, which is greater than 0.5mg/kg. However, the levels of As and Cd were still within the limit allowed by the regulatory agency, which is less than 0.1mg/kg. It’s important to ensure that food products meet the established safety standards to protect consumers’ health and well-being. Peeled green mussels sold in traditional market in Yogyakarta, Indonesia contaminated with pathogenic bacteria and contains Pb and Hg metal.
Screening of protease-producing lactic acid bacteria from Indonesian fermented fish products and its application in chitin extraction from vannamei shrimp (Litopenaeus vannamei) shell
Authors: Aisyah A N , Gavi M , Putra M M P 
Published: December 2023

Abstract
This study aimed to screen lactic acid bacteria (LAB) from traditional Indonesian fermented fish products, namely wadi and jambal, with high protease activity for chitin production from Litopenaeus vannamei shrimp shells. Twenty-eight colonies were successfully isolated and identified through biochemical tests such as catalase and Gram staining. Seven out of the twenty-eight colonies were identified as lactic acid bacteria based on their Gram-positive and catalase-negative results. These strains from wadi samples were named GWB 1.3, GWB 1.7, and GWB 2.5, while those from jambal samples were named GMJB 1.3, GMJB 1.6, GMJB 2.6, and GMJB 2.7. The protease activity of these strains was tested using the well-diffusion method on skim milk agar to assess their deproteinized activity. The diameter of the clear zone formed after 24, 48, and 72 hours of incubation was measured. GWB 1.7 and GMJB 2.6 showed the largest clear zone diameter with 21.3 mm and 22.5 mm, respectively, and were selected for the single step-fermentation of shrimp shells. The fermentation process was conducted in 6 days with different inoculum ranging from 0%, 5%, 10%, 15%, and 20% (v/v) as treatments. All treatments, including moisture, ash, and protein, were evaluated for proximate content in the final days. The results indicate that the 20% inoculum showed the highest deproteinization and demineralization for both bacterial strains. GWB 1.7 exhibited a demineralization of 43.7% and deproteinization of 25.2%, while GMJB 2.6 showed a demineralization of 39% and deproteinization of 16.1%. This study demonstrated that lactic acid bacteria from wadi and jambal samples could produce chitin from shrimp shells, a valuable biopolymer with various applications.