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901 articles for “challenges.”
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Different type of catalysts used in the Baylis-Hillman reaction
Abstract: The Baylis-Hillman reaction in the present-day version is an atom-economic carbon-carbon bond-forming reaction between the α-position of the activated alkenes and carbon electrophiles under the influence of a catalyst or catalytic system offering diverse classes of densely functionalized molecules. If the substrate contains both the activated alkene and electrophile components in appropriate positions, there is the possibility of developing an intramolecular version of this reaction leading to the synthesis of …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 2, 2019 · pp. 30–37 Read article
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A Preliminary Evaluation of Renewable Energy Technology Financing Options for Nigeria
Abstract: Renewable energy technologies (RETs) ought to play a complementary role to conventional energy technologies as these have the potential to meet up energy needs in rural areas with regards to access, availability and affordability. Despite these potentials, the current challenge is how to finance their deployment and services. Since long-term growth in the market for RETs is going to be determined by social and economic development that is occurring in …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 1, Issue 1, 2015 · pp. 1–5 Read article
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The Role of Energy Storage in Wind Energy Technology
Abstract: Wind energy is a promising source of renewable energy that has gained increasing attention in recent years. However, wind power generation faces the challenge of intermittent, which can lead to fluctuations in power supply and demand. The solution to this challenge lies in energy storage technologies, which can store excess wind energy during periods of high wind and release it when needed. Energy storage systems (ESS) have an important role …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 2, 2022 · pp. 26–29 Read article
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Evaluation of Manpower Training and Development in Nigeria Construction Industry
Abstract: Abstract Lack of technical and managerial skill is often identified as one of the major problem facing construction industry in developing countries resulting in poor competitiveness with their developed and industrialized counterparts. Research had shown that building failure is not only caused as result of inefficient design, lack of standard materials, but also due to lack of skilled labour in the construction project. This research evaluate manpower training and development …
Published in International Journal of Construction Engineering and Planning · Vol. 2, Issue 1, 2016 · pp. 13–26 Read article
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Innovative Concrete Composites: Assessing Mechanical Strength with Fly Ash, Glass, and Granite Waste Incorporation
Abstract: Waste management poses a significant challenge for countries in both current and future contexts. The generation of solid waste from various industries, such as stone, glass, coal, and tires, constitutes a major issue in India, leading to significant environmental and health concerns for the surrounding population. This study addresses these challenges by exploring the utilization of waste granite and glass powder as materials to replace sand and cement, respectively, with …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 37–45 Read article
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Assessment of the Factors Influencing Facility Maintenance Problems in Rufus Giwa Polytechnic, Owo, Nigeria
Abstract: This survey is carried to assess the facility maintenance challenges in higher institutions of learning by adopting Rufus Giwa Polytechnic, Owo. The study particularly examined those factors that contribute to maintenance problems and those that influence maintenance programme on the institutional buildings in the study area. Structured questionnaires were distributed to respondents and the results were analyzed. Findings revealed that untimely replacement of defective fitting is the main maintenance challenge …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 2, 2016 · pp. 20–28 Read article
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Strategic Plans for Handling Water Quality Issues in Nigeria: A Case Study of Lagos State
Abstract: Availability, affordability and accessibility of quality of water are essential tool for effective management of water resources, achievement of better public health, sustainable development and wealth of all living things in any nation across the globe. Human beings and aquatic life require potable and good quality water for survival. This paper studied the Lagos state experience on water quality related issues. Methodology adopted includes literature survey, collection of data on …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 2, 2021 · pp. 10–20 Read article
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DEPLOYMENT OF FINANCIAL STRATEGIES TO URBAN WATER SANITATION AND WASTEWATER MANAGEMENT IN NIGERIA
Abstract: Adequate urban water sanitation and financial strategies can be deployed to wastewater management in Nigeria to engender the health and wealth of the populace. This paper is focused on urban sanitation and how financial planning can be utilized to foster wastewater management in Nigeria. The methodology employed in this paper involves critical observation of the current situation, literature review and several processes which include identification of the challenges of urban …
Published in International Journal of Water Resources Engineering · Vol. 8, Issue 1, 2022 · pp. 12–26 Read article
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Flood Control and Disaster Mitigation through Engineering Interventions for Economic Development in Nigeria
Abstract: Flood management and economic development are linked together in many aspects. As economic globalization and integration have developed over the past few decades, the relationships between the economy and national security have grown stronger. This paper discusses the relationship between sustainable development and disaster preparedness and management, as well as the roles of NGOs and the organizations, put in place to employ methodologies of open data principle and advanced techniques …
Published in International Journal of Water Resources Engineering · Vol. 8, Issue 2, 2022 · pp. 6–13 Read article
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Analysis of Virtual or Remote Laboratories of IITs
Abstract: This paper is about virtual labs challenge of Ministry of Human resource development, authorities of India. The idea of virtual laboratory is to provide a danger to perform experiments the usage of the internet and visual aids without having the equipments at their quit. The digital lab software gives a completely unique opportunity to enhance the first-rate of engineering schooling, deepen information, and provide the necessary practical competencies to young …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 1, Issue 2, 2015 · pp. 19–25 Read article
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Detection of Hate Speech on Social Media Using Machine Learning
Abstract: As we know, social media platforms are the fastest method of communication because information is transmitted and received virtually instantaneously. Social media platforms' development radically altered how people communicate in our world, and one effect of these changes is a rise in inappropriate behaviors, like the use of derogatory language online. It might be challenging to express harsh or disrespectful ideas to someone right in the face. People believe it …
Published in International Journal of Software Computing and Testing · Vol. 8, Issue 2, 2022 · pp. 1–6 Read article
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Towards Inclusive Communication: Reviewing CNN Models for Hindi Varnamala Sign Language Recognition
Abstract: Dealing with an individual who has hearing impairments is never easy. This research represents an effort (extension) to investigate the challenges associated with character categorization in Indian Sign Language (ISL).It is necessary for two people to know and comprehend the same language to create communication. However, sign language is necessary for communication for those who have hearing impairments. The gestures used by the deaf and dumb people are easy for …
Published in International Journal of Analog Integrated Circuits · Vol. 9, Issue 2, 2023 · pp. 16–21 Read article
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Implementation of Forward Backward Sweep Method & Loss Minimization Using Local Search Method in Radial Distribution Power Systems
Abstract: Interconnected power systems face several challenges out of which supply voltage fluctuations and line overload capacity have become crucial and challenging problems for engineers. The problem relating with the enhancement of the voltage profile and reduction in power losses in electrical systems is a very important task. This study work, is for a solution with respect to the problems occurred in doing load flow analysis in a radial distribution system, …
Published in International Journal of Electrical Power System and Technology · Vol. 8, Issue 2, 2022 · pp. 27–36 Read article
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NOVEL TECHNIQUES FOR ENERGY CONSERVATION IN WIRELESS SENSOR NETWORKS (WSN)
Abstract: The rapid growth of wireless services in recent years is an indication that considerable value is placed on wireless networks. Wireless devices have most utility when they can be used anywhere at any time. Yet one of the greatest challenges is limited energy supply. In the recent years, Wireless Sensor Networks (WSN) has gained good attention from both the research community and actual users. As sensor nodes are generally battery-energized …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 7–26 Read article
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E-Learning Pathway to Smart Indian Education System
Abstract: Education is the basic key element for the development of society. Without education the society is just like a body without soul. Means the education plays such a role in human life that the humans are only animals without knowledge or education. Students in the ancient and mediaeval periods are taught in such a way that they will be able to survive in that era. The Indian education system has …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 7, Issue 2, 2021 · pp. 12–19 Read article
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Nanostructured Metal Oxides as Promising Electrode Materials for Microbial Fuel Cells
Abstract: Microbial fuel cells (MFCs) are emerging as a promising technology for generating sustainable energy from organic waste materials. One of the key challenges in developing efficient MFCs is the selection of suitable electrode materials. In recent years, nanostructured metal oxides have gainedconsiderable attention as electrode materials for MFCs due to their unique structural and electrochemical properties. This review highlights the recent progress in the development and application of various types …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 2, 2022 · pp. 23–30 Read article
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Nanomechanics in Medicine
Abstract: Nanomechanics, an emerging field at the intersection of nanotechnology and mechanics, holds great promise for revolutionizing medicine. This article explores the significant role of nanomechanics in various aspects of healthcare, including diagnostics, drug delivery, tissue engineering, and cancer detection.One of the key applications of nanomechanics in medicine is in the development of nanomechanical sensors for disease detection. These sensors can detect biomarkers associated with diseases such as cancer at very …
Published in International Journal of Applied Nanotechnology · Vol. 9, Issue 2, 2023 · pp. 22–26 Read article
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Practices and Utilization of Green Propellants in Space Technology
Abstract: We are facing environmental challenges related to the use of energetic materials in many areas of society. In this review paper, we will use the civil space sector as an example, and discuss some past and present attempts to develop and implement green propulsion technology. This article represented some of the challenges associated with taking a green material from the initial development state to its final application. Keywords: ammonium perchlorate, …
Published in International Journal of Energetic Materials · Vol. 3, Issue 2, 2017 · pp. 14–18 Read article
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Review on Harvesting Energy from CO2 and its Importance in Afghanistan
Abstract: In all over the world, increasing of demands for energy and increasing of air pollution are important challenges these days. To overcome with these challenges, scientists are conducting several researches. As we know among the greenhouse gases CO2 has the greatest amount. There are two technologies CCS and CCUS to deal with these problems. In this article, we try to introduce one way in each technology. It means that describing …
Published in International Journal of Energetic Materials · Vol. 4, Issue 2, 2018 · pp. 17–27 Read article
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The Role of Metallurgy in Advanced Manufacturing and Engineering
Abstract: This field encompasses the study of the properties, behaviors, and processing of metals and their alloys, influencing the development and optimization of materials for a wide range of applications. In advanced manufacturing, metallurgical innovations are crucial for improving material performance, enhancing production efficiency, and driving sustainability. It examines how metallurgical advancements contribute to the production of lightweight, high-strength, and corrosion-resistant materials, which are essential for aerospace, automotive, biomedical, and energy …
Published in International Journal of Metallurgy and Alloys · Vol. 9, Issue 2, 2023 · pp. 12–17 Read article