L.S. Lazuta, A.A. Karpuk |
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| Cleaning and Preprocessing of Data in Data Warehouses | ||||||
This article provides an overview of the main methods for cleaning and preprocessing data in Big Data warehouses. It addresses issues such as removing duplicates and inconsistencies, handling missing or incomplete data, and normalizing and standardizing data. It demonstrates the use of rule-based, statistical, machine learning, and hybrid methods for cleaning and preprocessing data. Algorithms for finding functional dependencies between data in data warehouses, including those based on attribute lattice analysis, those based on table row analysis, and hybrid algorithms, are discussed.
Big Data systems, data warehouse, data cleaning, data preprocessing, data normalization, functional dependencies between data
[1].
Serra J. Deciphering Data Architectures. Choosing Between a Modern Data Warehouse, Data Fabric, Data Lakehouse, and Data Mesh. – O'Reilly, 2024. – 252 p.
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K. MOHAMMED UMAR, Dr. KOTRESH SARDAR |
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| Investigation of Organic Based Pack Carburizing for Mild Steel Surface Hardening | ||||||
Case-hardening steels are well known for their superior mechanical properties and their application. This research investigates the hardness and wear behavior of mild steel for treatments with organic compositions with agro waste additive at 950 °C. The steel specimens were packed with the mixtures, heated for 120 min, and water quenched as follows: (Case 1) sugarcane Waste bagasse, and eggshells; (Case 2) wood charcoal, and eggshells; and (case 3) Chromium-Tanned Leather waste and eggshells. The Rockwell hardness of treated samples was measured, and the wear tests were carried out using pin-on-disc and abrasive methods. It was found that the charcoal–eggshell and leather, eggshells treatments led to higher hardness and superior wear resistance due to the formation of carburization phases.
Chromium Tanned Leather, Organic Based pack carburizing, eggshells, surface Hardness.
[1]. G. E. Totten, *Steel Heat Treatment Handbook*. Boca Raton, FL: CRC Press, 2006.
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Papakitsos C., Papakitsou K., Papakitsos E., Mouzakis D.E. |
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| Applying Reverse Supply Chain Optimization in Automotive Industry: Exemplary Case Studies | ||||||
Growing concern about environmental issues and global competitiveness are prompting manufacturers to adopt more environmentally friendly methods throughout their supply chains. Environmental issues and the sustainability of production are increasingly emphasized by legislative bodies worldwide, and at the same time, stakeholders in these issues require manufacturers worldwide to be aware of the environmental and social impacts of their supply chain activities......... .......
[1].
Papakitsos, C. 2021. Optimization and Sustainability of Supply Chain: The Application of Reverse Supply Chain - Case Studies [in Greek]. Dissertation, Department of Mechanical Engineering, University of West Attica, Greece. doi: http://dx.doi.org/10.26265/polynoe-1313
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Yadong Gong, Zexin Li, Guanhong Chen |
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| A Survey of Routing Protocols for Underwater Wireless Sensor Networks: Classification, Performance, and Future Directions | ||||||
This paper comprehensively reviews the research progress of routing protocols for Underwater Wireless Sensor Networks (UWSNs). It proposes a classification framework based on design objectives and decision-making mechanisms, categorizing existing protocols into three primary types: energy-aware, data-centric, and geography-aware. The paper provides an in-depth analysis of the typical mechanisms, performance characteristics, and applicable scenarios for each category, highlighting persistent key challenges such as dynamic network topologies, energy imbalance, and localization inaccuracies.......... Underwater wireless sensor networks; routing protocols; energy efficiency; performance analysis.
[1]. Wahid A, Lee S, Jeong H J, Kim D. EEDBR: Energy-Efficient Depth-Based Routing for Underwater Wireless Sensor Networks. Advanced Computer Science & Information Technology. pp.223-234. 2012. [2]. Neelavathy Pari S, Sathish M, Arumugam K. ER-DBR: An Energy-Efficient and Reliable Depth-Based Routing Protocol for Underwater Wireless Sensor Network. In: Proc. of ICACCI. pp.451-463. 2018. [3]. Khan W, Wang H, Anwar M S, et al. A Multi-Layer Cluster Based Energy Efficient Routing Scheme for UWSNs. IEEE Access. vol.7. pp. 77398-77410. 2019. [4]. Nguyen N-T, Le T T T, Nguyen H-H, Voznak M. Energy-Efficient Clustering Multi-Hop Routing Protocol in a UWSN. Sensors. vol.21. no.2. pp. 627. 2021. [5]. Kulik J, Heinzelman W, Balakrishnan H. Negotiation-Based Protocols for Disseminating Information in Wireless Sensor Networks. Wireless Networks. vol.8. pp. 169-185. 2002
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VISHVESWARAN. P |
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| Privacy, Surveillance, and the State: Constitutional Challenges in India's Cybersecurity Regime | ||||||
The growing use of digital technology in government and daily life has made it harder for India to balance protecting national security with preserving people's privacy. This project looks at how India's cybersecurity policies affect the country's constitution, especially the conflict between government surveillance and the right to privacy. It checks how laws like the Information Technology Act, 2000, and later rules, influence the constitutional rights in Articles 14, 19, and 21....... ......
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Mohammed Fori, Ibrahim Jaduwa Mallum |
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| Mathematical Model and Analysis of Corruption Dynamics Incorporating Media Coverage and Anticorruption Agencies | ||||||
This study presents and analyzes a mathematical model that incorporates media coverage and the activities of anticorruption agencies to explain the transmission dynamics of corruption within a population. The model, formulated using a system of nonlinear differential equations, divides the population into compartments representing susceptible aware, susceptible unaware, corrupted, Jail, Reformed, and Anti – corruption Agencies, with the influence of media campaigns and punitive actions by anticorruption agencies explicitly integrated as control measures......... Mathematical Model, Corruption Free, Corruption Endemic and Sensitivity Analysis
[1]. Abayneh K. F &Zerihun K. B. (2022), Mathematical model and analysis of corruption dynamicswith optimal control. Hindawi,
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Rajbir Singh Rathee |
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| Exploring Circular Economy Pathways for Biomedical Waste Management in India | ||||||
India's biomedical waste (BMW) generation is growing rapidly, driven by expanding healthcare infrastructure, rising population, and episodic surges (e.g., COVID-19). The dominant linear "take-make-dispose" approach for BMW treatment is encountering stress due to limited treatment capacity, regulatory gaps, and inefficient practices. A transition towards a circular economy (CE) paradigm—where waste is minimised, reused, recycled, recovered, and resources are kept in use longer—offers significant promise in the biomedical waste sector resulting in improved resource efficiency, reduced environmental impact, and new economic value streams.......... Biomedical Waste Management, India, Circular Economy
[1]. Kanyal, D.; Butola, L.; Ambad, R. "Biomedical Waste Management in India – A Review." Indian Journal of Forensic Medicine &
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Koinyan A. A., Udom G. J., Nwankwoala H. O. |
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| Assessing Soil Suitability for Floating Building Development in the Floodplains of Bayelsa State, Nigeria | ||||||
This study assesses the soil suitability of floating building development in Bayelsa State's floodplains through soil quality analysis and community feedback. Heavy metal concentrations exceeded WHO safety limits in several communities, with lead and cadmium posing significant health and structural risks due to industrial and agricultural pollution. Copper and zinc levels remained within safe ranges but showed signs of anthropogenic influence, warranting ongoing monitoring. Community preferences favored traditional floating-building designs, emphasizing cultural fit, sanitation, and flood-season livelihoods......... Floating building, Floodplain, soil quality,socio-environmental benefits
[1].
Ajumobi, V. E., et al (2023). Impacts of the 2022 flooding on the residents of Yenagoa, Bayelsa State, Nigeria. Global Journal of Environmental Management and Public Safety (GJEMPS), 11(1), 1–6.
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Mr. Prashanth M, Dr. Hema Patil, Ms. SnehaA |
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| A Study on Consumer Awareness and Preference Towards Branded Masala Powders | ||||||
The study examines the level of consumer awareness and preference towards branded masala powders in Mysuru city. It aims to identify the relationship between consumer awareness and preference and to evaluate the extent to which awareness impacts preference formation. Using a structured questionnaire, data were collected from 191 respondents through convenience sampling. The analysis employed descriptive statistics, reliability tests, correlation, and........ Consumer Awareness, Consumer Preference, Branded Masala Powders, GRB Foods, Buying Behaviour
[1]. Abdellatif Auf, M., Meddour, H., Saoula, O., & Majid, A. H. A. (2018). Consumer buying behaviour: The roles of price,
motivation, perceived cultural importance, and religious orientation. Journal of Business and Retail Management Research, 12(4),
45–58.
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Juan Li |
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| Temperature and Humidity of Winter University Archives | ||||||
In view of the detailed requirements of the industry standard JGJ25-2000 for the temperature and humidity of the archives room, this article conducted a detailed inspection of the winter temperature and humidity of the university archives room of Zhongyuan Institute of Technology in Henan Province in January 2025. Every 5 minutes, a total of 8933 time points of data were obtained through testing. The results showed that the temperature in the archives was significantly lower during the measurement period, with about 99.7% of the measurement time not meeting JGJ25-2000......... ............
[1]. Juan Li. Temperature and Humidity Testing and Thermal Comfort Analysis of University Archives Warehouse. International
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Zhiwei Bo, Shuang Liu, Mingxing Zhang |
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| Dynamic Simulation of Electrically Controlled Heavy-Haul Train under Fuzzy PID Control | ||||||
To address the issues of insufficient speed control accuracy and delayed emergency braking response of heavy-haul trains under complex operating conditions, this paper proposes a hierarchical cooperative control strategy based on fuzzy PID and electronically controlled pneumatic (ECP) braking. A high-precision multibody dynamic model of the train is constructed on the TSDynamic (Train System Dynamics Simulation) platform, and a nonlinear pneumatic circuit model of the ECP braking system is developed in conjunction with AMESim to achieve refined simulation of the dynamic characteristics of braking pressure......... loadFuzzy PID Control；TSDynamic Co-Simulation；Heavy-Haul Trains
[1]. Baoshuan Tian,Operation and Development of Railway Heavy Haul Transport Technology in the world. [2]. Sai-Te Wu,State of the art and Future Trend of Railway Transportation Traction Power. [3]. Jie Yi,Fan Jiang,Yuan Luo,Zhengfang Zhang,Jin lei Bai,Puhua Zhong,Research on Fuzzy Adaptive Model Predictive Control Methodology for Heavy-Haul Trains. [4]. Tao TANG,A survey of control algorithm for automatic train operation. [5]. Yanfei Yang,Ke Cui,Xinjun lv,Combined Sliding Mode and PID Control of Automatic Train Operation System.
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V.Angelin Subiksha |
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| Legal Frameworks Governing Social Media in India | ||||||
Social media's explosive growth has changed public debate, communication, and connectivity, but it has also brought unprecedented legal issues. The study examines the development of India's legal framework governing social media, examining statutory provisions such as the Information Technology Act, 2000, the IT Rules, 2021, the Digital Personal Data Protection Act, 2023, and the Bharatiya Nyaya Sanhita, 2023, along with significant judicial pronouncement........ Cyber crime, Social media intermediaries, Intermediary liability, Information Technology Act,2000, Information Technology (Intermediary Guidelines and Digital Media Ethics) Code, Privacy, Freedom of speech.
...........
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Robinson, R. N., Agbali F. D. |
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| The Impact of Brain Drain on Capacity Building of Electronic Technology in Universities in Rivers State | ||||||
In today's world, electronic technology forms the foundation of modern civilization, powering innovations in every facet of life. Just like in many developed nations, electronic technology profession is expected to grow in capacity. However, Nigeria's capacity building efforts on electronic technology profession is highly threatened. This gap is what the study intends to fill. The study is aimed at investigating the impact of brain drain on capacity building of electronic technology in universities in Rivers State. The study adopted 2 objectives, research questions and hypotheses to guide the study........ Impact, Brain drain, Capacity Building, Electronic Technology and University.
[1].
Adebayo, A. (2020). Emigration and its effects on the Nigerian education system. International Journal of Education and Research, 8(2), 123-134.
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GAYATHRI.K |
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| Domain Name Disputes and Resolution in The Digital Medium: Protection and Prevention Efforts | ||||||
Domain names are becoming essential resources due to the expansion of digital and e-commerce enterprises. But disputes over domain ownership, abuse, and cybersquatting are becoming more frequent. This study looks at the difficulties in resolving domain name disputes as well as the organizational, national, and international options for protection and prevention. UDRP, INDRP, ACPA, and other legal frameworks are examined, along with pertinent case law, emphasizing both judicial and technological dispute resolution procedures. Trademark, Digital Medium, Resolution, Prevention, UDRP, INDRP, Cybersquatting, Domain Name.
Books:
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OLLOMO Dan Geoffrey, XIANHUA Li |
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| Kinematic Modeling and Workspace Analysis of 4DOF Upper Limb Rehabilitation Robot | ||||||
Upper limb impairments following stroke necessitate advanced rehabilitation robotics to restore motor function and support activities of daily living (ADLs). Robust kinematic models are essential for precise trajectory planning, safe human-robot interaction, and workspace optimization in such systems. This work employs a screw theory framework and the Product of Exponentials (PoE) formula for kinematic modeling of a 4-degree-of-freedom (4-DOF) upper limb rehabilitation exoskeleton, offering an alternative to the conventional Denavit-Hartenberg (DH) parameter method........ Kinematic modeling, Workspace analysis, Screw theory, PoE, 4DOF upper limb rehabilitation robot.
[1]. Feigin, V. L., et al. (2022). Global, regional, and national burden of stroke and its risk factors, 1990–2019: A systematic analysis for the Global Burden of Disease Study 2019. The Lancet Neurology, 20(10), 795-820. [2]. W. Johnson et al., "Stroke: A global response is needed," Bull. World Health Organ., vol. 94, no. 9, pp. 634–635, Sep. 2016. [3]. Lo, H. S., & Xie, S. Q. (2012). Exoskeleton robots for upper-limb rehabilitation: State of the art and future prospects. Medical Engineering & Physics, 34(3), 261-268. [4]. Maciejasz, P., Eschweiler, J., Gerlach-Hahn, K., Jansen-Troy, A., & Leonhardt, S. (2014). A survey on robotic devices for upper limb rehabilitation. Journal of Neuroengineering and Rehabilitation, 11(1), 3. [5]. Chen, L., Qian, L., Cheng, Y., Cheng, X., Wu, Y., & Xu, M. (2022). A novel end-effector upper limb rehabilitation robot: Kinematics analysis, structural design, and trajectory planning. International Journal of Advanced Robotic Systems, 19(5), 17298806221118855.
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Hui Zhang, Jiancheng liu, Lei Li, Xiu Zhan Zhang, Kaiye Hu, Ling Cai, Shaoyuan Peng, Feng Jiang |
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| Control and Simulation for Active Heave Compensation Crane Based on Fuzzy Self-adaptive PID | ||||||
In order to solve the problem of poor control effect in the active heave compensation (AHC) system of marine cranes using traditional control algorithms, this paper studies the active heave compensation system of marine cranes and proposes a fuzzy self-adaptive PID control algorithm. Firstly, the principle of active heave compensation is introduced. Secondly the active heave compensation system is designed and its mathematical model is established. Thirdly a heave compensation algorithm is designed based on fuzzy self-adaptive PID. The results of system simulation indicate that the control algorithm can meet control requirements of the active heave compensation system, which provides a certain reference value for manufacturing a prototype of active heave compensation crane. active heave compensation; fuzzy self-adaptive PID; crane; control; simulation
[1].
Lloyd ARJM. Seakeeping Ship Behaviour in Rough Weather. Ellis Horwood Ltd; 1998
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Alcides Feitosa Neto, Ana Katherine Silveira Pereira Caracas, Antonio Werbiton Marinho Almeida, Emilio Parra Sanches Junior, Ernandes Farias da Costa, Francisco José Lopes Cajado, Francisco José da Silva Fonteles, Givanildo Ximenes Santana, Irene Mendes Fontes, José Reudson de Souza, Luísa Janaina Lopes Barroso Pinto, Paulo Henrique Barbosa Sousa, Rickardo Léo Ramos Gomes, Roberto Augusto Caracas Neto, Tadeu Dote Sá |
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| Technological Innovation and Sustainable Management of Rare Earths in the Context of Renewable Energy Geopolitics | ||||||
The growing demand for sustainable energy sources has intensified global interest in rare earth elements, which are essential for the production of renewable technologies such as solar panels, wind turbines, and electric vehicles. However, the intensive use of these resources entails environmental, economic, and geopolitical implications that call for new strategies in management and innovation. This study adopts a qualitative methodology grounded in literature review to examine the interrelations among technology, sustainability, and international politics within the contemporary energy landscape........ technological innovation; rare earth elements; sustainability; geopolitics.
[1]
Abrão, R. A. F. (2022). The geopolitics of renewable energies: Brazil amid the energy transition scenario. Revista Monções, 11(22). ISSN: 2316-8323. https://dx.doi.org/10.30612/rmufgd.v11i22.14541
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Shri Pal, R Debnath |
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| Codes of Practice for Indoor Air Quality Management in India | ||||||
Indoor Air Quality (IAQ) has emerged as a critical determinant of public health, productivity, and environmental sustainability in India. With rapid urbanization, energy-efficient construction, and increased indoor occupancy, exposure to indoor air pollutants often exceeds outdoor levels. This paper reviews and analyzes the existing codes of practice, standards, and regulatory frameworks governing indoor air quality management in India. Key documents from the Bureau of Indian Standards (BIS), Central Pollution Control Board (CPCB), National Building Code (NBC), and international benchmarks such as ASHRAE and WHO guidelines are discussed......... .....
[1] Indoor Air Quality Management System Under Closed Conditions, An Invention Under Atm Nirbhar Bharat, Technical Report , Prepared by Bunkerman, Plot No 20, Bhatoli Kalan, Baddi (HP)=173205, INDIA.
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Sheriff Babatunde BAKARE, Adeniyi Ganiyu ADEOGUN, Muktar Oladapo RAJI |
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| Assessment of Managed Aquifer Recharge System Using Numerical Groundwater Modelling | ||||||
Managed Aquifer Recharge (MAR) Systems are artificial recharge techniques that enhance groundwater levels and quality. MAR is a sustainable, comprehensive, cost-effective, and environmentally-friendly approach to replenishing aquifers. This study evaluates the application of MAR in Ilorin, North Central Nigeria, where groundwater serves as a critical alternative to the poor municipal water supply system. A numerical groundwater model was developed using FREEWAT to simulate groundwater flow and predict the effects of recharge and abstraction scenarios......... Groundwater Sustainability, Managed Aquifer Recharge, Groundwater Depletion, Artificial Recharge, Ilorin.
[1] R. Rossetto, G. De Filippis, I. Borsi, L. Foglia, and M. Cannata, "Environmental Modelling & Software Integrating free and open source tools and distributed modelling codes in GIS environment for data-based groundwater management," Environ. Model. Softw., vol. 107, no. September 2017, pp. 210–230, 2018, doi: 10.1016/j.envsoft.2018.06.007. [2] K. Harizi, C. Nabil, S. Labar, and T. H. Boumediene, "Initial assessment of the groundwater flow and budget using Geographic Information System , MODFLOW-2005 and the FREEWAT modeling tool in Initial assessment of the groundwater flow and budget using Geographic Information System , MODFLOW-2005 and the FREE," no. October, 2021, doi: 10.7343/as-2021-511. [3] K. Standen and J. P. Monteiro, "In-channel managed aquifer recharge: A review of current development worldwide and future potential in Europe," Water Switz., vol. 12, no. 11, pp. 1–28, 2020, doi: 10.3390/w12113099. [4] P. Dillon, W. M. Alley, Z. Yan, and V. Joanne, Managed Aquifer Recharge : Overview and Governance IAH Special Publication, no. June. 2022. [5] H. Zhang, Y. Xu, and K. Thokozani, "A review of the managed aquifer recharge: Historical development, current situation and perspectives," Phys. Chem. Earth Parts ABC, vol. 118–119, p. 102887, May 2020, doi: 10.1016/j.pce.2020.102887.
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