cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
H Hadiyanto
Contact Email
hady.hadiyanto@gmail.com
Phone
+6282223420485
Journal Mail Official
jese@cbiore.id
Editorial Address
Center of Biomass and Renewable Energy (CBIORE), UPT Lab Terpadu Undip Jl. Prof. SOedarto, SH-Semarang 50271
Location
Kota semarang,
Jawa tengah
INDONESIA
Journal of Emerging Science and Engineering
Published by CBIORE Scientia Academy
ISSN : 30260817     EISSN : 30260183     DOI : https://doi.org/10.61435/jese.xxx.xxx
Core Subject : Social, Engineering,
Engineering Environmental Science
Journal of Emerging Science and Engineering (JESE) is peer-reviewed, and it is devoted to a wide range of subfields in the engineering sciences. JESE publishes two issues of rigorous and original contributions in the Science and Engineering disciplines such as Biological Sciences, Chemistry, Earth Sciences, and Physics, Chemical, Civil, Computer Science and Engineering, Electrical, Mechanical, Petroleum , and Systems Engineering.. JESE publishes original research papers, reviews, short communications, expository articles, and reports. Manuscripts must be submitted in the English language and authors must ensure that the article has not been published or submitted for publication elsewhere in any format, and that there are no ethical concerns with the contents or data collection. The authors warrant that the information submitted is not redundant and respects general guidelines of ethics in publishing. All papers are evaluated by at least two international referees, who are known scholars in their fields. We encourage and request all academics and practitioners in the field of science and engineering to send their valuable works and participate in this journal.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 38 Documents
 1   2   3   4 
Analysis of weather and ship-type effects on fuel efficiency and emissions for green maritime operations Le, Ngoc Doanh; Pham, Nguyen Dang Khoa
Journal of Emerging Science and Engineering Vol. 3 No. 2 (2025)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2025.e58

Abstract

This research is an endeavour to develop an explainable machine learning framework to quantify the combined effect of ship type, fuel type, distance and weather conditions affecting fuel consumption and CO2 emissions for green maritime operations. The data collected from the voyage-level records for various vessel categories was pre-processed and used to train three supervised regression models: Linear Regression, Random Forest, and Extreme Gradient Boosting (XGBoost). The models were tested based on the coefficient of determination (R2) and mean squared error for training and test data sets separately for fuel consumption and CO2 emission. Results show that all models are able to capture the main trends, but the Random Forest was able to provide the most accurate and robust predictions, with values of test R2 exceeding 0.94 and the lowest values of error for both target variables. In order to improve the interpretability, SHapley Additive exPlanations (SHAP) analysis and feature importance measures were used for the Random Forest models. Distance becomes the main factor, whereas ship type, fuel type, and weather variables have a secondary but significant impact on fuel consumption and emissions. The proposed approach offers a transparent and computationally efficient aid for supporting operational optimization, fuel choice evaluation, and policy design in the context of maritime decarbonization.
From pond to polymer: A concise review on algae-derived plastics Phillip, Akash; Chauhan, Tushar; Kumar, Shravan; Kumar, Bagepalli Srinivas Ashok
Journal of Emerging Science and Engineering Vol. 4 No. 1 (2026)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2026.e40

Abstract

Algae-derived plastics signify a revolutionary advancement in the pursuit of sustainable materials, providing a renewable and environmentally benign substitute for conventional petroleum-based polymers. This review explores the most recent advancements in algae cultivation, polymerization methodologies, and synthetic biology that have elevated algae-based bioplastics to a position of prominence. It emphasizes the distinctive characteristics of algal biopolymers, their capacity to sequester carbon, and their various applications, encompassing packaging and 3D printing. Nonetheless, the pathway from aquatic environments to polymeric substances is laden with obstacles, including elevated production costs, challenges related to scalability, and regulatory impediments. Through the analysis of case studies, market dynamics, and burgeoning research, this paper highlights the pivotal importance of algae-derived plastics in fulfilling circular economy objectives and mitigating plastic pollution. The review culminates with an appeal for international collaboration, policy advocacy, and sustained investment in algae bioplastics to realize their complete potential as a fundamental element of sustainable development.
A multi-model simulation framework for the 'Sponge Park' concept: achieving urban water-energy nexus sustainability in hyper-arid climates Fayssal, Firas
Journal of Emerging Science and Engineering Vol. 4 No. 1 (2026)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2026.e59

Abstract

Urban areas in hyper-arid regions face a dual threat of water scarcity and urban heat islands, exacerbated by conventional infrastructure. This study introduces and evaluates the "Sponge Park" concept—a decentralized, nature-based system of permeable surfaces and subsurface storage—as a replicable model for integrated water management and climate adaptation in arid cities. A novel multi-model computational framework was developed, coupling Computational Fluid Dynamics (CFD) for process-level subsurface hydrology and heat transfer, the EPA HELP model for long-term water balance, and TR-55/HydroCAD for extreme storm event routing. The system, designed for a 13-ha site in Abu Dhabi, integrates high-infiltration silica-sand pavers and breathable aquicludes (APAC). A comprehensive Monte Carlo analysis (n=1,000) quantified uncertainties in key parameters. Simulations under local climatic inputs (80 mm/yr rainfall) project exceptional performance: >93.6 ± 3.8% annual rainfall infiltration, <0.1% runoff for 50 mm/24h storms, and pollutant removal efficiencies of 98.0 ± 2.1% (SS) and 93.9 ± 4.2% (COD). The system harvests 5,240 ± 520 m³/yr of water for reuse. The latent heat flux from evaporation (9.32 ± 0.93 GJ/yr per 1,000 m²) translates to a microclimate cooling of 0.4–0.6 °C. A life-cycle cost analysis confirms economic viability with a net present value of +$0.42 million. The Sponge Park provides a quantitative, policy-ready blueprint for transforming arid cities. It demonstrates a sustainable pathway to achieving water security and climate resilience, directly supporting the UAE's Estidama framework, Net-Zero 2050 goal, and relevant UN Sustainable Development Goals (SDGs). The simulation-based proof-of-concept establishes a new benchmark for sponge city applications in water-stressed regions, with a defined plan for field validation.
Evaluation of reverse supply chain strategies for end-of-life EV batteries in Vietnam using AHP–TOPSIS Le, Viet Khai; Le, The Anh; Le, Quoc Bay; Thai, Minh Phuong; Le, Nguyen Phuong Lien
Journal of Emerging Science and Engineering Vol. 4 No. 1 (2026)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2026.e61

Abstract

The booming development of electric vehicle (EV) adoption in Vietnam has worsened the problem of end-of-life EV battery management in a sustainable and economically feasible way. Reverse supply chain management (RSCM) plays a critical role in reducing environmental risks, resource dependency, and circular economy goals. However, the choice of suitable reverse supply chain strategies is impaired by several economic, environmental, technical, and policy-related barriers. This study proposes an integrated AHP-TOPSIS framework for the evaluation and prioritization of reverse supply chain alternatives for EV batteries in the Vietnamese context. Ten key barriers were identified, from an extensive literature review and expert consultation by twelve domain specialists. High collection and transportation costs (weight = 0.244) and high recycling and processing expenses (weight = 0.162) were shown to be the most significant barriers when AHP was applied to determine their relative importance. The four options—Direct Recycling, Second-Life Applications, Centralized Recycling, and Decentralized/Hybrid Recycling—were then ranked using TOPSIS. According to the findings, Decentralized/Hybrid Recycling had the highest closeness coefficient, followed by Second-Life Applications, while Direct Recycling had the lowest. The results show how adaptable and localized reverse supply chain topologies can help solve the issue of cost-related barriers. In order to promote sustainable EV battery management in Vietnam, the suggested framework provides policymakers and industry stakeholders with useful insights.
SPIROWPLAST (Spirulina and arrowroot bioplastic): A combination of Spirulina and arrowroot to enhance the tensile strength and durability of bioplastic Ichlasia, Amira Liontina; Adelia, Zameera; Damayanti, Roosita; Astari, Putri Dyah; Pratama, Wahyu Disky; Khoironi, Adian
Journal of Emerging Science and Engineering Vol. 4 No. 1 (2026)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2026.e62

Abstract

Plastic waste that is resistant to natural degradation remains a critical environmental challenge. One promising strategy to address this issue is the development of bioplastics derived from renewable, biodegradable resources. This study investigates the potential of combining Spirulina platensis and arrowroot (Maranta arundinacea) flour to produce bioplastics with improved mechanical, chemical, and biodegradation performance. An experimental approach was employed using four formulations: bioplastics derived solely from S. platensis, solely from arrowroot flour, a composite of S. platensis and arrowroot flour, and a commercial bioplastic (ecoplast) as a positive control. Comprehensive characterization was conducted using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), tensile strength, thickness measurement, and biodegradation tests in accordance with ASTM standards. The results demonstrate that the combined Spirulina–arrowroot formulation exhibits more balanced and superior properties compared to single-component bioplastics. The composite bioplastic achieved a tensile strength of 4.267 MPa and an elongation at break of 105.5%, approaching the performance of commercial bioplastic. FTIR analysis confirmed the presence of key functional groups, including hydroxyl (–OH), carboxyl (–COOH), ester (C–O), and aromatic structures, indicating effective polymer network formation. SEM observations revealed a smoother and denser surface morphology, while XRD analysis indicated a semi-crystalline structure with a crystallinity of 49.6%. All bioplastic samples fully decomposed in composted soil within three days, highlighting their excellent biodegradability. Overall, the combination of Spirulina platensis and arrowroot flour effectively compensates for the limitations of each individual material, yielding a strong, flexible, and rapidly degradable bioplastic. These findings suggest a viable and environmentally friendly alternative to conventional plastics and provide a foundation for the future development of large-scale bioplastic products with properties comparable to commercial materials.
Extracellular polymeric substances from Spirulina sp. for the bioremediation of fishing net–derived microplastics in seawater Wahyuningtyas, Sri Hapsari; Khoironi, Adian; Bucol, Lilibeth
Journal of Emerging Science and Engineering Vol. 4 No. 1 (2026)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2026.e64

Abstract

The increasing accumulation of plastic waste from fishing nets is primarily driven by the large volume of nets introduced into aquatic systems. Fishing nets are predominantly manufactured from polyethylene, a polymer known for its high resistance to degradation, allowing it to persist in marine environments for hundreds of years. Consequently, discarded or degraded fishing nets represent an ongoing environmental challenge, which is further exacerbated by their fragmentation into microplastics. In response to this issue, this study aims to evaluate the effectiveness of extracellular polymeric substances (EPS) produced by Spirulina sp. for the bioremediation of polyethylene-derived microplastics from fishing nets in seawater. A quasi-experimental design was employed, consisting of control and treatment reactors. EPS was applied at concentrations of 20, 30, and 40 mg in the treatment reactors, while the control reactor received no EPS addition. The remediation process was conducted over treatment periods of 5, 9, and 13 days. Following the treatment, laboratory analyses were performed to assess changes in key water quality parameters, including salinity, dissolved oxygen (DO), pH, total dissolved solids (TDS), chemical oxygen demand (COD), and Spirulina growth rate. In addition, the residual microplastics that were not flocculated were quantified. The results indicated that the presence of microplastics influenced the growth dynamics of Spirulina. Nevertheless, EPS application resulted in a measurable reduction in microplastic mass, with decreases of 5.0 g, 10.1 mg, and 11.6 mg observed in the 20, 30, and 40 mg treatments, respectively. Overall, the findings demonstrate that bioremediation using Spirulina-derived EPS is effective in reducing polyethylene microplastics in seawater. Future studies are recommended to extend the treatment duration, utilize natural seawater under environmentally realistic conditions, and evaluate the broader ecological impacts of EPS-based bioremediation to support its practical application in marine environments.
Research status and development trends of wind-induced vibration technology for photovoltaic support systems Hu, Jiashun; Li, Wenhua; Sun, Tao; Shi, Mingjie; Yang, Fan
Journal of Emerging Science and Engineering Vol. 4 No. 2 (2026)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2026.e65

Abstract

Against the backdrop of global energy transition, photovoltaic (PV) power generation has witnessed rapid expansion, with China’s newly installed capacity in 2024 accounting for 52.4% of global additions. However, PV support systems face significant wind-induced vibration challenges in complex scenarios. This study systematically reviews advances in wind-induced vibration mitigation technologies for PV supports. First, structural characteristics and failure mechanisms are analyzed for fixed-axis, single-/dual-axis tracking, cable-suspended flexible, and offshore PV support systems. Second, synergistic applications of wind tunnel tests, numerical simulations, and field monitoring are reviewed to reveal nonlinear dynamic mechanisms such as vortex-induced vibration (VIV) and flutter. Third, many important dominant factors, such as aerodynamic parameters, geometric parameters, structural parameters, topographic effects are analyzed in detail. And design strategies such as prestress optimization, damping enhancement, and stiffness assignment are used to mitigate wind-induced vibration response in practice. Current challenges are discussed including unclear dynamic aeroelastic coupling mechanisms, insufficient scaling model similarity, and lack of standards for diverse scenarios. In future, developing high-fidelity multi-physical models, intelligent vibration suppression technologies, and cross-disciplinary frameworks will be emphasized to enhance system robustness and cost-effectiveness under extreme climates, supporting the global scaling of PV deployment.
Experimental assessment of domestic biogas production from organic waste through anaerobic digestion in Chad Abdelhamid Issa Hassane; Bill Vaneck Bôt; Fatimé Nadji Gisele; Doussi Howe Olivier; Ruben Mouangue
Journal of Emerging Science and Engineering Vol. 4 No. 2 (2026)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2026.e69

Abstract

Environmental degradation and health concerns. In this context, the valorisation of organic waste through anaerobic digestion represents a promising alternative for sustainable household energy production. This study presents an experimental assessment of domestic biogas production from organic waste under local conditions in Chad. A pilot-scale anaerobic digestion system was designed and operated for a period of 30 days. The digester was fed with a mixture of vegetable organic waste and fresh cow dung used as inoculum. Key operational parameters, including temperature and pH, were regularly monitored throughout the digestion process. The system was designed to meet the cooking energy needs of a household of eight persons, and the technical feasibility of biogas production was evaluated. The experimental results showed that biogas production started from the tenth day of fermentation and increased progressively with the hydraulic retention time. The pH remained within a range favourable to methanogenic activity, while temperature variations were compatible with mesophilic digestion conditions. The observed biogas production confirmed the methanogenic potential of the selected organic substrates and demonstrated the suitability of the proposed low-cost digester for domestic energy applications. Biogas volume increases with daily feeding (1/60 of the useful volume) and a retention time of 30 days, reaching a maximum volume of 1,2 m³. This can reduce daily consumption by approximately 0,2 m³ of butane, 1,24 kg of charcoal, and 2,5 kg of firewood.The findings indicate that anaerobic digestion of household organic waste can contribute to sustainable energy supply, waste management improvement and reduction of pressure on forest resources in Chad. This study provides practical evidence supporting the deployment of small-scale biogas systems in similar socio-economic contexts.

Page 4 of 4 | Total Record : 38

 1   2   3   4 

Filter by Year

2023 2026


Reset
Filter By Issues
All Issue Vol. 4 No. 2 (2026) Vol. 4 No. 1 (2026) Vol. 3 No. 2 (2025) Vol. 3 No. 1 (2025) Vol. 2 No. 2 (2024) Vol. 2 No. 1 (2024) Vol. 1 No. 2 (2023) Vol. 1 No. 1 (2023)