Martins O. Ojo, A.O. Odeh, Temiloluwa G. Adeleke, Habeeb O. Lanlehin |
||||||
| Co-Torrefaction of Sub-Bituminous Coal and Empty Palm Fruit Bunch: A Process Optimization Study Using Response Surface Methodology (RSM) | ||||||
This study investigates the co-torrefaction of sub-bituminous coal (SBC) and empty fruit bunch (EFB) biomass as a strategy for enhancing the fuel characteristics of biomass-coal blends for sustainable energy applications. A series of experiments were conducted by systematically varying the EFB mass fraction (20–80%), torrefaction temperature (200–300 °C), and residence time (20–60 minutes). The process optimization was performed using Response Surface Methodology (RSM) with a Box–Behnken design to evaluate both the individual and interactive effects of these parameters on the higher heating value (HHV) and energy yield (EY) of the resulting............
......
[1]. Bridgeman, T. G., Jones, J. M., Williams, A., & Waldron, D. J. (2010). An investigation of the grindability of two torrefied energy crops. Fuel, 89, 3911–3918. [2]. Chen, W. H., Peng, J., & Bi, X. T. (2015). A state-of-the-art review of biomass torrefaction, densification and applications. Renew. Sustain. Energy Rev., 44, 847–866. [3]. García Nieto, P. J., García-Gonzalo, E., Paredes-Sánchez, J. P., Bernardo Sánchez, A., & Menéndez Fernández, M. (2019). Predictive modelling of the higher heating value in biomass torrefaction for the energy treatment process using machine-learning techniques. Neural Computing and Applications, 31(12), 8823–8836. https://doi.org/10.1007/S00521-018-3870-X [4]. Lu, K. M., Lee, W. J., Chen, W. H., Liu, S. H., & Lin, T. C. (2012). Torrefaction and low temperature carbonization of oil palm fiber and eucalyptus in nitrogen and air atmospheres. Bioresource Technology, 123, 98–105. https://doi.org/10.1016/j.biortech.2012.07.096 [5]. Martín-Lara, M. A., Ronda, A., Zamora, M. C., & Calero, M. (2017). Torrefaction of olive tree pruning: Effect of operating conditions on solid product properties. Fuel, 202, 109–117. https://doi.org/10.1016/j.fuel.2017.04.007
|
Mohammed Liman Yerima, Isah Muhammad |
||||||
| CNT-Filled Polymer Feedstocks for Material-Extrusion Additive Manufacturing in Oil and Gas Applications | ||||||
Carbon-nanotube (CNT)-filled thermoplastic filaments can combine the geometric freedom of fused filament fabrication (FFF, also termed fused deposition modeling) with electrical, sensing, electromagnetic-shielding, or selected mechanical functions. This critical review evaluates these materials' potential separately from the performance and qualification of printed components for oil-and-gas service. The literature considered includes CNT/polymer feedstock and printed-part studies, relevant work on FFF interlayer structure and test methodology, and reviews of additive manufacturing in energy-sector applications. It is treated as a narrative review rather than a systematic search. Across ABS, PLA, TPU, PBT and PEEK matrices, experimental studies demonstrate printable CNT-containing materials and application-specific........
Carbon nanotubes; polymer nanocomposites; fused filament fabrication; material extrusion; oil and gas; qualification; interlayer bonding; multifunctional materials
[1] M. Sireesha, J. Lee, A. S. Kranthi Kiran, V. J. Babu, B. B. T. Kee, S. Ramakrishna, "A review on additive manufacturing and its way into the oil and gas industry," RSC Advances, 2018. https://doi.org/10.1039/c8ra03194k
|
R. Satyanarayana, N. Muni Lakshmi, N. Chendrayudu |
||||||
| Performance Evaluation of Pilot-Scale Constructed Wetlands Planted with Canna Glauca for Domestic Wastewater Treatment | ||||||
Water is one of the most important natural resources required for the survival of all living organisms and the sustainable development of society. The present study aimed to evaluate the performance of a domestic wastewater treatment system using sewage collected near Leela mahal Circle in Tirupati District. The plant species Canna Glauca was used in the constructed wetland systems. Two types of constructed wetlands, namely vertical subsurface flow and recirculating systems, were investigated for wastewater treatment. The treated wastewater was analysed for important water quality parameters, including Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Solids (TS), Total Suspended Solids.........
Domestic Wastewater, Constructed Wetlands, Treatment of sewage, Canna Glauca. Recirculation.
[1].
Abusamra, R., Hasan, A. R., Allimadi, A., Alhajhussein, M., Saleh, M., & Alary, R. (2022). Enhanced fodder production using treated wastewater from a pilot constructed wetland system. Desalination and Water Treatment, 275, 313-322.
|
Ajakaiye Saturday Moses, Amadi, Hachimenum Nyebuchi |
||||||
| Operational Performance of a Solar Battery Backup System in a Small Manufacturing Facility in Ariaria Market Abia State | ||||||
The research was designed, installed and tested a Solar PV and battery storage system to guarantee a resilient electricity supply to a small-scale industrial facility located in the Ariaria market of Nigeria, which suffers from fluctuating-loads and intermittency of electricity supply that may disrupt the production process. The instantaneous load and daily electrical consumption were statistically documented regarding temporal and energy demand characteristics. PV grid integration, battery state of charge (SOC) profile, back-up energy capacity and system operational efficiency for adequate drive energy supply during power outages, for critical load and manufacturing were evaluated. The instantaneous load aggregation, time-integrated energy consumption, irradiance-dependent PV drive, temperature-dependent PV drive, battery state of charge (SOC), and energy efficiency mathematical models were created........
Solar photovoltaic system, Battery energy storage, Electrical load demand, Manufacturing plant, Grid outage.
[1] Igbogidi, O. N., Dike, B., & Idoniboyeobu, D. C. (2023). Determination of Energy Not Supplied in Power System. American Journal of Engineering Research, 12(2), 108-117. [3] Azmi, M. S. F. M., Hussain, M. H., Rahim, S. R. A., Mid, E. C., Shaari, A. S., Hashim, N., Husny, N., & Ahmad, M. F. (2023). Hybrid cooling system for solar photovoltaic panel. Journal of Physics: Conference Series, 2550(1), Art. no. 012004. doi: 10.1088/1742-6596/2550/1/012004.
|
Aysunay Ibrahimova, Sabir Amirov |
||||||
| Theoretical Study of the Esterification of Carboxylic Acids with Glycerol in the Presence of Organic Calcium Salts | ||||||
Esterification of carboxylic acids with glycerol is an important route to glycerides with potential applications in bio-based fuels and fuel additives, lubricants, emulsifiers, and specialty chemicals. Because glycerol contains three hydroxyl groups, esterification generally proceeds through a sequential reaction network in which monoacylglycerols can form diacylglycerols and, subsequently, triacylglycerols. Product distribution depends on catalyst properties and operating variables, including temperature, reactant ratio, water management, phase behaviour, and reaction time. This review examines the available evidence concerning organic calcium catalysts, with particular emphasis on calcium glycerate and calcium.........
glycerol; carboxylic acids; esterification; calcium glycerate; calcium carboxylates; monoacylglycerols; heterogeneous catalysis; selectivity.
[1].
Zapravdina, D. M.; Popov, Y. V.; Zotov, Y. L.; Sapunov, V. N. Calcium glyceroxide promoted esterification of oleic acid with glycerol and its mathematical modelling. Reaction Chemistry & Engineering, v. 10 (11), pp. 2514-2524, (2025), 10.1039/D4RE00458B
|
Engr. Prof. Jim E.O. Ovri, Engr. Nwakiri Ekele C. |
||||||
| Galvanic Corrosion Susceptibility of Electro-Chemical Metals Under Acidic Medium | ||||||
Electrochemical metals in installations, production and construction services suffer series of problems ranging from corrosion and oxidation, crack propagation, abrasion and wear, etc. This means that these metals undergoes loss of weight, strength, form, etc with time, leading to structural, mechanical, thermal etc failures.
Therefore, the need for an evaluation of metallic weight loss with time under aggressive environments can not be over emphasized.
In this study, bimetallic couples of Copper/Aluminium (Cu/Al), Aluminium/Iron (Al/Fe), and Copper/Iron (Cu/Fe), with designations: copper alloy, (CuAl10Fe2-C), Aluminium alloy, (Al6063) and Mild (low carbon) steel, (AISI 1018), were in electrical contact by clamping with a non-corrosive polymeric rope, thereby setting-up galvanic cells........
Galvanic corrosion, electro-chemical series, hydrogen gas evolution, sulphuric acid, mild steel, copper alloy, aluminium alloy.
[1] A. Cohen, (2005), Corrosion of copper and copper alloys, (ASM Handbook), Vol. 13B, pp. 136-137. [4] D.C. Silverman, (2000), Practical corrosion prediction using electrochemical techniques, (Corrosion handbook), 2
edition, p. 1179. [5] E.D. Verink, Jr., (2000), Simplified procedure for constructing pourbaix diagrams, (corrosion handbook), 2 pp. 111-123.
|
Zhang Jian |
||||||
| Integrating Local Cultural Resources into the "Not Wanting to Be Corrupt" Mechanism for University Teachers: Generative Logic and Implementation Pathways — A Case Study of Third-Front Integrity Culture | ||||||
The core dilemma currently facing integrity education for university teachers lies in the fact that integrity requirements are primarily manifested in the form of institutional norms and disciplinary propaganda, which have not yet been transformed into the internal consciousness of the teaching community, with the root cause being that educational methods remain at the level of external constraint rather than entering the realm of value internalization. This paper employs Tönnies' theory of "community" and Dewey's proposition of "education as life" as analytical frameworks to argue that teachers' "academic community" and "professional community" serve as the organizational foundation for the spontaneous generation of the "not daring to be corrupt" consciousness, and further proposes the core proposition.........
Local cultural resources; "Not wanting to be corrupt" mechanism; University teachers; Community theory; Third-Front integrity culture
[1].
Zhang CP. Cultivating moral rationality and building a culture of integrity[EB/OL]. (2012-02-17). http://jwjc.hust.edu.cn/info/1011/2100.htm
|
S V Anil kumar, Shivakumar, Shubham, Somashekar M |
||||||
| Waste-To-Energy Initiatives and Technologies: Challenges and Entrepreneurial Opportunities | ||||||
Waste-to-energy (WtE) initiatives have emerged as a critical solution to the dual challenges of waste management and sustainable energy production. This paper explores the entrepreneurial landscape within the Waste to energy sector, highlighting key opportunities for innovation and economic growth. Entrepreneurs in the WtE domain are uniquely positioned to address pressing environmental concerns while capitalizing on the growing demand for renewable energy sources. Integrating renewable energy systems with waste management infrastructure offers a synergistic approach to energy generation and resource recovery..........
Waste- To- Energy , Entrepreneur ,Renewable, Opportunities.
[1].
Asthana, A., Mukherjee, S., Misra, G. P., & Babbar, P. (2018). Challenges in establishing waste-to-energy projects in developing countries with a case study from India.
|
Rahul Thakur |
||||||
| Temple Vāstu and Cultural Life: Classical Prescriptions, Historical Forms, and Contemporary Zoning Claims | ||||||
This study asks how temple Vāstu differs from residential Vāstu and what is lost when either is reduced to a directional classification. It combines source-specific textual comparison, documentary case analysis, a bounded examination of contemporary promotional claims, and an exact geometric audit. The textual corpus comprises architectural and installation passages of the Bṛhatsaṃhitā, selected Mānasāra chapters in P. K. Acharya's translation, and the Kāmikāgama's gnomon procedure, with Ṛgvedic and Purāṇic passages contextualizing sacred inhabitation and traditional authority........
temple Vāstu; residential Vāstu; Sanskrit architecture; ritual space; cultural history; pada-vinyāsa; spatial classification; contemporary practice.
[1] Ṛgveda 7.54.1. Vāstusūktam, accented and unaccented Sanskrit transcription. Sanskrit Documents. https://sanskritdocuments.org/doc_veda/vAstusUktam.html
|
Pratima Sinha, Ishita Ghosh, Ashok Kumar Mandal, Amit Kumar, Tahseen Alam |
||||||
| Acoustic Analysis and Mathematical Modelling of a Stiff Spring-Coupled Double-String Banam: A Study of Vibrational Characteristics | ||||||
Indian musical instruments, such as the Banam, combine strings with a resonating membrane. In this study, we investigate the acoustic properties of the Banam musical in-strument. Initially, the Banam is played, and the resulting audio signal is recorded using an audio recorder. The recorded signal is plotted, and its frequency content is analysed using the Short-Time Fourier Transform (STFT) rather than the Fast Fourier Transform (FFT) to capture its time-varying characteristics. The power spectrum and spectrogram are used to investigate the energy distribution across frequencies and the variation in frequency con-tent over time, respectively.........
........
[1]
Baski, B. and Ka¨mpchen, M. (2019) Banam: One of the ancient musical instruments of the Santals. Bishnubati, West Bengal: Ghosaldanga Bishnubati Adibasi Trust.
|
Adnan Khan, Arjun Sonkeshariya, Dewansh Rudrakar, Prof. Tanuja Kashyap |
||||||
| AI Enabled Voice Interaction System for Audio Visual Feedback and Smart Device Control | ||||||
Voice-based human–machine interaction is becoming central to smart-home and Internet of Things (IoT) applications, yet most commercial voice assistants depend on continuous cloud connectivity, add response latency, and offer limited audio-visual feedback or customization for embedded use. This paper presents a low-cost, modular, AI-enabled voice interaction system built around the ESP32-S3 microcontroller. The system captures speech through an INMP441 I2S digital microphone, processes commands on-board and through a cloud AI service, and delivers audio feedback through a MAX98357A I2S amplifier alongside visual feedback on an SSD1306 OLED display.........
ESP32-S3, voice interaction, IoT, smart home automation, audio-visual feedback, embedded systems.
[1]
Baski, B. and Ka¨mpchen, M. (2019) Banam: One of the ancient musical instruments of the Santals. Bishnubati, West Bengal: Ghosaldanga Bishnubati Adibasi Trust.
|
Peter Mugumya, Kenneth Ssemwogerere, Dans Naturinda |
||||||
| Front End Engineering Design Maturity and Investment Decision Quality in Public Infrastructure | ||||||
Front end engineering design (FEED) establishes the technical and commercial evidence on which capital investment decisions depend, yet its maturity is frequently treated as equivalent to document completion. This state-of-the-art review examines how FEED maturity, accuracy and quality relate to final investment decision (FID) effectiveness and public infrastructure performance, with particular attention to Uganda. A critical narrative synthesis was developed a targeted verification of peer reviewed research, Construction Industry Institute resources and Ugandan public investment sources.........
Front end engineering design; FEED maturity; Final investment decision; Public infrastructure; Project definition; Investment, Governance.
[1]
Baski, B. and Ka¨mpchen, M. (2019) Banam: One of the ancient musical instruments of the Santals. Bishnubati, West Bengal: Ghosaldanga Bishnubati Adibasi Trust.
|
D. Venkata Sai Lakshmi, G. Sowjanya, D. Praveen, M. Sai Harsha, P. Uday Kiran, Ch. Kiran Babu |
||||||
| AI for Personalized Education System | ||||||
The AI-Based Personalized Education System is an intelligent platform developed to provide a customized learning experience for every student based on individual abilities, interests, performance and learning progress. In traditional education, students are generally provided with the same learning materials and teaching methods, even though each student has a different level of understanding and learning speed. This work uses Artificial Intelligence and Machine Learning techniques to analyze student data such as quiz scores, assessment results, learning activities and progress in order to identify strengths and weaknesses.........
Artificial Intelligence (AI), Personalized Learning, Adaptive Learning, Machine Learning, Intelligent Tutoring System, Student Performance Analysis
[1]
Baski, B. and Ka¨mpchen, M. (2019) Banam: One of the ancient musical instruments of the Santals. Bishnubati, West Bengal: Ghosaldanga Bishnubati Adibasi Trust.
|
Peter Mugumya, Umaru Bagampadde |
||||||
| A Model for Predicting Capacity of Right-turn Traffic at Closely Spaced Unsignalised Junctions | ||||||
Right-turn traffic at closely spaced un-signalised junctions is associated with delay and the resulting queuing since it cuts through main stream traffic. Through traffic volumes and spacing between junctions have significant bearing on the capacity and delay for right-turns. No relationship has been developed in the literature to predict capacity of right-turn traffic considering through traffic volume, right-turn traffic volumes and spacing between closely spaced junctions. In this study, model for predicting right-turning capacity of two successive unsignalised close junctions was developed..........
Right-turn Capacity, modelling, unsignalised junction, Negative binomial regression, Rstudio.
[1]
Baski, B. and Ka¨mpchen, M. (2019) Banam: One of the ancient musical instruments of the Santals. Bishnubati, West Bengal: Ghosaldanga Bishnubati Adibasi Trust.
|