Showing papers in "Cogent engineering in 2021"
TL;DR: Survey, analyses and compares the current state-of-the-art methodologies over the last six years in the CBIR field, and provides an overview of CBIR framework, recent low-level feature extraction methods, machine learning algorithms, similarity measures, and a performance evaluation to inspire further research efforts.
Abstract: With the availability of internet technology and the low-cost of digital image sensor, enormous amount of image databases have been created in different kind of applications. These image databases ...
45 citations
TL;DR: In this paper, the dominant acrylic, poly methyl methacrylate (PMMA), is used to produce partial and complete dentures and fractures are caused by fatigue owing to repetitive masticatory, flexur...
Abstract: Poly methyl methacrylate (PMMA) is the dominant acrylic that is widely used to produce partial and complete dentures. Denture fractures are caused by fatigue owing to repetitive masticatory, flexur...
31 citations
TL;DR: Water quality modeling is a significant tool that aids managers in managing water quality as mentioned in this paper, and water quality modeling can be used to assist managers in their decision making process, such as population growth, urbanization, and industrialization.
Abstract: Due to population growth, urbanization, and industrialization, water demands have increased, and the quality of water is degraded. Water quality modeling is a significant tool that aids managers an...
30 citations
TL;DR: In this paper, the authors investigated the possibility of exploiting locally available renewable energy resources to achieve a resilient zero-carbon future, and proposed a method to harness their locally available energy resources.
Abstract: As the world drives towards a resilient zero-carbon future, it is prudent for countries to harness their locally available renewable energy resources. This study has investigated the possibility of...
23 citations
TL;DR: In this paper, the authors evaluate university students' awareness regarding water pollution in Iraq to show the environmental education contribution in reducing water pollution, and the study was conducted at the University of Erbil, Iraq.
Abstract: This study intends to evaluate university students’ awareness regarding water pollution in Iraq to show the environmental education contribution in reducing water pollution. The study was conducted...
20 citations
TL;DR: In this article, the microstructural characteristics and mechanical behaviour of aluminium matrix composites reinforced with Si-based refractory compounds (SRC) derived from rice husk were investigated.
Abstract: The microstructural characteristics and mechanical behaviour of aluminium matrix composites reinforced with Si-based refractory compounds (SRC) derived from rice husk were investigated. The reinfor...
19 citations
TL;DR: Incorporation of nanoparticles in polymeric matrices to develop polymer nanocomposite with an idea to maximize the "nano-effect" derived out of the nanoparticles and to minimize the disadvantages.
Abstract: Incorporation of nanoparticles in polymeric matrices to develop polymer nanocomposite with an idea to maximize the “nano-effect” derived out of the nanoparticles and to minimize the disadvantages o...
18 citations
TL;DR: This paper helps the researchers to understand and analyse the data trends related to COVID-19 and also prepare for a future outbreak which might happen due to new strains of CO VID-19.
Abstract: Severe Acute Respiratory Syndrome Coronavirus 2(SARS-CoV-2) known as Coronavirus surfaced in late 2019. It turned out to be a life-threatening disease and is
causing chaos all around the world. The World Health Organisation (WHO) declared it a pandemic in March 2020. To handle COVID-19 related problems, research in many
areas of science was introduced. Machine learning (ML), being one of the most successful stories in recent times is widely used to solve a variety of problems in our
everyday life. Here, an overview of machine learning that tackles the pandemic is discussed in the beginning. Various datasets related to COVID-19 are also explored.
Diagnosis of this viral disease using CT-Scans, X-ray images, sound analysis and blood tests using machine learning are presented in-depth. Drug and vaccine development using machine learning for COVID-19 are also discussed. Pandemic management and control were also examined. The main objective of this paper is to conduct a systematic review of machine learning applications that fight the deadly virus. This paper helps the
researchers to understand and analyse the data trends related to COVID-19 and also prepare for a future outbreak which might happen due to new strains of COVID-19.
Challenges and directions for the future are also provided.
17 citations
TL;DR: In this article, anthropogenic activities in Kenya's Murera waters have been investigated and the authors found that sediment-laden rivers infill with time which reduces the storage capacity and consequently the quality of aquatic life.
Abstract: Lakes and dams located in sediment-laden rivers infill with time which reduces the storage capacity and consequently the quality of aquatic life. Anthropogenic activities in Kenya’s Murera watershe...
16 citations
TL;DR: In this article, the authors designed, techno-economically analyzed and compared the heat-assisted extraction (HAE)- and ultrasound assisted extraction (UAE)-technology-based processes.
Abstract: This study designed, techno-economically analyzed and compared the heat-assisted extraction (HAE)- and ultrasound-assisted extraction (UAE)-technology-based processes (HAE-tBP and UAE-tBP) for the ...
15 citations
TL;DR: In this article, the authors investigated the properties of concrete with waste paper ash (WPA) as a substitute material for concrete and reported the chemical composition of WPA and Portland cement.
Abstract: The aim of this study was to investigate the properties of concrete with waste paper ash (WPA) as cement replacing material. The chemical composition of WPA was reported, and Portland cement was pa...
TL;DR: In this paper, the authors discuss the problem of selecting a landfill where waste is disposed of is a complicated issue that related to many factors and regulations and propose a solution to the problem.
Abstract: Solid waste is one of the leading environmental problems affecting human lives. Selecting a landfill where waste is disposed of is a complicated issue that related to many factors and regulations. ...
TL;DR: In this paper, various research works have been carried out on cement and lime stabilization of lateritic soil, and the production of cement is too expensive and environmentally unfriendly due to the required huge em...
Abstract: Various research works have been carried out on cement and lime stabilization of lateritic soil. The production of cement is too expensive and environmentally unfriendly due to the required huge em...
TL;DR: In this paper, a multi-objective hybrid energy system is proposed to provide a resilient access pathway to affordable and sustainable energy for millions of people in regions with no or undeserved grid.
Abstract: Renewable energy systems provide a resilient access pathway to affordable and sustainable energy for millions of people in regions with no or undeserved grid. In this work, a multi-objective Hybrid...
TL;DR: Recently, the popularity of BIM has grown rapidly in the public construction sector as mentioned in this paper. But only a few studies so far have been seeking to address the BIM adoption benefits and barriers in develo...
Abstract: Recently, the popularity of BIM has grown rapidly in the public construction sector. However, only a few studies so far have been seeking to address the BIM adoption benefits and barriers in develo...
TL;DR: In this article, the authors have shown that biofuel is one of the most sought-after renewable energy sources to overcome the current energy crisis in the world, and that diesel blended with esters derived from oils has shown appreciable results for...
Abstract: Biofuels are one of the most sought-after renewable energy sources to overcome the current energy crisis in the world. Diesel blended with esters derived from oils has shown appreciable results for...
TL;DR: The paper presents the conceptual bases of 3D self-organization with some illustrative examples to highlight the interests of this disruptive vision with its realistic limits.
Abstract: Additive manufacturing is based on a deterministic principle of spatially localized material transformation. By using spatial energy resolution modes, it is thus possible to produce an object that ...
TL;DR: In this article, the authors reviewed recent literature on the mechanical and durability properties of concrete incorporating seashells as partial or full substitutes for conventional materials, and summarized the results of these studies.
Abstract: This study reviews recent literature on the mechanical and durability properties of concrete incorporating seashells as partial or full substitutes for conventional materials. The study summarizes ...
TL;DR: The knowledge of the tendencies of the drinking water treatments was changing through the previous decades and it is necessary to improve it for the benefit of the human beings as mentioned in this paper. In this sense, the...
Abstract: The knowledge of the tendencies of the drinking water treatments was changing through the previous decades and it is necessary to improve it for the benefit of the human beings. In this sense, the ...
TL;DR: The simulation results show that the designed controller (ST-FSMC) has a superior tracking performance, is robust and is not sensitive to applied model parameter variations as compared to other conventional controllers.
Abstract: Robotic manipulators are highly coupled multi-input multi-output (MIMO) nonlinear systems with uncertainties and highly time-varying dynamic capabilities. These characteristics make the trajectory ...
TL;DR: In this article, the feasibility of a stand-alone photovoltaic, diesel generator and battery storage hybrid power system for the electrification of off-grid rural areas in northern Ghana was examined.
Abstract: This study examines the feasibility of a stand-alone photovoltaic, diesel generator and battery storage hybrid power system for the electrification of off-grid rural areas in northern Ghana. The HO...
TL;DR: In this article, only a few empirical studies have been conducted to examine the inter-sectorial aspects of construction projects, focusing on the success of different attributes of different sectors of a construction project.
Abstract: Literature highlights that the success of construction projects differs in various attributes. However, only a few empirical studies have been conducted to examine the inter-sectorial aspects of cr...
TL;DR: The continuous depletion of energy sources globally and serious concern regarding environmental degradation by the use of fossil fuel, biodiesel may plays key transponder as discussed by the authors, and Bio diesel with diesel fu...
Abstract: The continuous depletion of energy sources globally and serious concern regarding environmental degradation by the use of fossil fuel, biodiesel may plays key transponder. Bio diesel with diesel fu...
TL;DR: The performance comparison of MPSO and conventional particle swarm optimization in terms of voltage profile and active and reactive power loss has been conducted and it has been found that the proposed method (MPSO) is more effective to enhance the performance of radial distribution systems.
Abstract: This paper presents simultaneous radial distribution network reconfiguration and switched capacitor bank allocation to enhance the performance of distribution systems. The paper primarily targets m...
TL;DR: In this paper, a nanocomposites based on copper (I) oxide poly(1-vinyl-2-pyrolidone-co-itaconic acid) nanostructures were synthesized by the electrodeposition method usi...
Abstract: In the present research, nanocomposites based on copper (I) oxide poly(1-vinyl-2—pyrolidone-co-itaconic acid) nanostructures (Cu2O/p(NVP-co-AI)) were synthesized by the electrodeposition method usi...
TL;DR: In this article, the removal of copper and lead ions from aqueous solution in single and binary systems using natural banana peels was performed using a single-and binary system.
Abstract: It is very rare to have the ions of only one metal ion in wastewater. Hence, the removal of copper and lead ions from aqueous solution in single and binary systems using natural banana peels was in...
TL;DR: In a bid to develop a cheaper alternative material for particleboard, fiber/particulate reinforced cement-paper composites were produced in this paper, and the paper-cement matrix had 12 ¼ % of cement and the matr...
Abstract: In a bid to develop a cheaper alternative material for particleboard, fiber/particulate reinforced cement-paper composites were produced. The paper-cement matrix had 12 wt. % of cement and the matr...
TL;DR: Identifying flood-prone areas, will enhance flood mitigation and proper land use planning of affected areas as discussed by the authors, however, lack of reso..., lacks of re-so...
Abstract: Floods are hazard which poses immense threat to life and property. Identifying flood-prone areas, will enhance flood mitigation and proper land use planning of affected areas. However, lack of reso...
TL;DR: In this paper, the parametric sensitivity of unsteady Maxwell magnetohydromagnetic nanofluid and second thermodynamic law analysis under Arrhenius kinetic was investigated in the presence of viscous heating and radiat
Abstract: Parametric sensitivity of unsteady Maxwell magnetohydromagnetic nanofluid and second thermodynamic law analysis under Arrhenius kinetic is investigated in the presence of viscous heating and radiat...
TL;DR: In this paper, the potential of demolished building waste (DBW) as aggregates in alkali-activated concrete (AAC) was evaluated for roadwidening activity led to the demolition of buildings.
Abstract: This study was undertaken to evaluate the potential of demolished building waste (DBW) as aggregates in alkali-activated concrete (AAC). A recent road-widening activity led to the demolition of com...