• General Article

    Utilisation of glass powder in reinforced concrete beams for a green environment
    Deepa Paul and Bindhu Kochunarayana Rugmini
    The present study addresses green environment by utilising glass powder (GP) as a partial cement substitute to obtain greener concrete. With this … + READ MORE
    The present study addresses green environment by utilising glass powder (GP) as a partial cement substitute to obtain greener concrete. With this context, the experiment evaluated the performance of concrete beams containing 30% GP (combined effect of GP having two different fineness in equal proportions) and normal concrete beams with longitudinal reinforcement ratios of 1.92% and 2.88%, while transverse reinforcement was kept as constant for all specimens. The beams were singly reinforced ones with a depth-to-width ratio of 1.5. Based on the linear elastic analysis, the study focused on assessing the flexural properties, such as load-deflection behaviour, stiffness parameters, flexural toughness, displacement ductility, crack pattern, concrete strain profile and moment-curvature relationship. The GP concrete beams demonstrated higher ultimate strengths and deflection values than their counterparts. The higher deflection values of GP beams led to an improved flexural toughness. A reduction in service stiffness values of 2.1% and 9.8% for GP under-reinforced beams and 28.9% and 34.8% for GP over-reinforced beams are observed. A marginal decrease in ultimate displacement ductility of 2% and 9% is observed for under-reinforced GP beams than the companion control beams, while over-reinforced GP beams show a more significant reduction of 28% and 34%. The high load-carrying capacity of GP beams is confirmed by the dense packing of GP concrete through SEM micrographs. Hence, it can be inferred that partial substitution of hybrid GP as a binder is viable and leads to a greener production of structural concrete. - COLLAPSE
    30 December 2023
  • General Article

    Development of hydraulically operated energy efficient machines for eco-friendly brick manufacturing
    SanatKumar Vanishankar Damania and Sandeep Soni
    For the construction of buildings, brick is one of the most essential materials. Since most of the bricks are manufactured in kilns, … + READ MORE
    For the construction of buildings, brick is one of the most essential materials. Since most of the bricks are manufactured in kilns, wherein the majority of operations are carried out by human beings, the entire sector is classified as a dependent sector. Using clay that is mined from the earth’s surface, all such enterprises create bricks. Burning coal or other carbonaceous fuels in kilns to strengthen the bricks causes dangerous gas emissions that pollute the environment and are harmful to people. Human tiredness caused by strenuous working conditions in manual manufacturing, the depletion of natural resources, and the discharge of dangerous gases into the atmosphere were the driving forces for the creation of mechanised brick manufacture. The primary objective of the research was to develop alternative manufacturing processes and materials to overcome problems with current processes. The main goals have been to automate laborious tasks like mixing and moulding or to replace energy-intensive processes with viable processes. The automation of the brick moulding process, energy efficiency, ergonomics, and modularity of brick size and shape are the primary subject matters of this paper. Machine component dimensions are typically determined through empirical relations and, for crucial parts, are ultimately finalised by FEA. Elimination of backing process reduces the emission of harmful gases and also preserve the natural resources by great extent. Machine modularity reduces setup time and facilitates product switching. The use of newly developed transfer mechanism reduces the power consumption during the handling of loaded pallets compared to conventionally used flat sliding. - COLLAPSE
    30 December 2023
  • General Article

    Perceived climate risk and support for environmental spending: Why political trust matters
    Jaeyoung Lim
    Climate change is worsening, and an unusual array of weather events are negatively affecting countries around the world. Many governments have promised … + READ MORE
    Climate change is worsening, and an unusual array of weather events are negatively affecting countries around the world. Many governments have promised to alleviate the negative effects of climate change and reduce carbon emissions. Still, firm evidence that governments are investing in the environment is yet to be seen. Thus, the need for governments increasing spending on the environment and enhancing environmental sustainability is more urgent than ever before. Within this context, we investigate whether individuals’ perceived climate risk is associated with their support of environmental spending. Moreover, we focus our study on whether the relationships between individuals’ perceived climate risk and support for environmental spending are moderated by individuals’ level of political trust. Using the 2021 Korean General Social Survey and an ordered logit regression (n = 693), we found that perceived climate risk is positively associated with support for environmental spending. More importantly, political trust moderates the linkage between perceived climate risk and support for environmental spending. Consequently, the linkage is strengthened as the level of political trust increases, indicating that individuals with an increased level of perceived climate risk will be more supportive of environmental spending if they possess a greater level of political trust. We consider the implications of the findings in both scholarly and practical contexts. - COLLAPSE
    30 December 2023
  • General Article

    Current scenario of digital growth in the state of Chhattisgarh
    Rajiv Harris Peters, Ayudhalu Radha Naidu, Ratnesh Kumar, Annapurna Pawar and Gitika Masih
    The first steps that were going to be the giant leap in the field of information technology in India started in the … + READ MORE
    The first steps that were going to be the giant leap in the field of information technology in India started in the mid-1990s and 2000s and incidentally it was in the year 2000 that the state of Chhattisgarh came into existence. This paper focuses on how in two decade this relatively new has gone from strength to strength in terms of e governance and use of digital technology in providing ease of government functioning, which otherwise in infamous for its redtapism and is considered a time taking procedure. Through a straightforward idea, the ongoing administration is forceful forward the Digital India drive to improve the nation hooked on a carefully sceptered civilization and an information budget. With the sendoff of this drive, the public authority intends to accomplish perished set citizens inside the remotest of areas and fabricate them with computerized instruments which can enable electors and persuade be huge advantage. Advanced India provides the imperative impetus to the nine pillars of development, including Broadband Highways, Universal Access to Mobile Property, and public Internet Access Programs. This article presents illuminating examinations of the most recent rising patterns of the computerized economy in India, with particular emphasis on Chhattisgarh. - COLLAPSE
    30 December 2023
  • General Article

    Enhancing diagnosis of breast cancer through mammographic image segmentation using Fuzzy C-Means
    Richa Sharma and Amit Kamra
    Technology advancements have produced several computerized methods for extracting information from images, and in the field of medical sciences processed images transmit … + READ MORE
    Technology advancements have produced several computerized methods for extracting information from images, and in the field of medical sciences processed images transmit information more clearly than any text or words. The prevalence of breast cancer is now widely known worldwide and it is high time to control this severe disease to enhance patient outcomes and lessen the impact of this illness on society. It is crucial to give priority to breast cancer control methods such as early diagnosis and intervention programs. The main factor contributing to the onset of breast cancer in women is the presence of breast lumps in the breast area. The CLAHE methodology, morphological procedures, and the Fuzzy C-means (FCM) clustering algorithm were used for the study to provide a unique method for conducting hybrid segmentation on mammographic pictures. The performance of the recommended approach was evaluated using the MIAS database in terms of a few key parameters, including threshold, accuracy, sensitivity, and specificity. Future studies in this field may find success using the CLAHE, morphological procedures, and FCM clustering method. - COLLAPSE
    30 December 2023
  • General Article

    Sustainability in damascene house architecture, as a guide to the development of the contemporary syrian housing
    Muhammad Shayah and Mohammadali Khanmohammadi
    Traditional housing architecture in Syria carried profound meanings in terms of adaptation and harmony with its surroundings and fulfilled the requirements of … + READ MORE
    Traditional housing architecture in Syria carried profound meanings in terms of adaptation and harmony with its surroundings and fulfilled the requirements of its residents. However, the past century imposed rapid life changes that changed housing architecture methods, which led to abandoning traditional architecture instead of developing and reusing it. The buildings lost the identity that they had carried over centuries, and residential models emerged separated from their society. They also failed to respond to the requirements of sustainable development. The most pressing challenge is how to invest this information to develop or innovate a new generation of modern housing that meets the needs of climate design, suits new social lifestyles, and maintains the continuity of the architectural identity of Damascene house architecture. This study, based on field studies and open interviews with residents, conducted a reading of the Damascene House and an analysis of its elements and features that determined its architectural identity and balanced their application, performance, and concepts by the principles and standards called for by sustainable building rating systems. The study concluded that the architecture of the Damascene House adhered to its applications to sustainability principles in its contemporary sense. Accordingly, guidelines were proposed to create architectural models for a Syrian residence with a local identity, making use of the sustainability of the Damascene architecture. - COLLAPSE
    30 December 2023
  • General Article

    Utilizing machine learning for the assessment of mosquito repellent effectiveness and decision support in product selection
    Dharmendra Kumar, Ankit Verma, Mukesh Kumar, Vipin Maurya and Ashutosh Mishra
    The significance of effective insect repellents is underscored by the substantial threat posed by mosquito-borne diseases to global health. Machine learning (ML) … + READ MORE
    The significance of effective insect repellents is underscored by the substantial threat posed by mosquito-borne diseases to global health. Machine learning (ML) algorithms have garnered attention as a potential approach for classifying insect repellents and evaluating their effectiveness. In this study, we explore the application of decision tree (DT), random forest (RF), logistic regression (LR), K-Nearest Neighbor (KNN), Naive Bayes (NB), AdaBoost (AB), Multilayer Perceptron (MLP), and Support Vector Machine (SVM) algorithms for categorizing insect repellents. ML techniques are employed to classify mosquito repellents by training various ML classification models using a labeled dataset in which each repellent is assigned a specific effectiveness level. These algorithms can identify patterns and determine the efficacy of a particular repellent by analyzing a range of features such as chemical composition, concentration, duration of protection, and environmental conditions. E-Nose technology offers several advantages, including high sensitivity, selectivity, rapid analysis, non-invasiveness, portability, extensive data analysis capabilities, cost-effectiveness, and versatility. In this research, we propose the use of a non-selective gas sensor array comprising eight MQ series elements, combined with ML analytics, to distinguish the type, concentration, and application of four different types of mosquito repellents commonly used in real-world scenarios. The sensor node prototype was exposed to each of the potential mosquito repellents for 15 to 20 minutes individually to create the experimental dataset. Subsequently, various ML models were trained using this dataset to accurately classify unknown data samples. SVM and MLP models achieved model accuracy scores of 98.01% and 98.10%, respectively, while DT, RF, and KNN models achieved training accuracies of 98.99%, 98.98%, and 98.61%, respectively. Classification performance error was also assessed using Mean Absolute Error (MAE), R2 Score, and Mean Squared Error (MSE). - COLLAPSE
    30 December 2023
  • General Article

    Quality characteristics of glass fiber reinforced polymer (GFRP) rebar products based on curing agents, heating temperature and production speed
    Seungjun Roh, Mina Seong, Hyeongseok Cho, Seungyoup Lee, Byeongyeob Kim and Hyunman Lee
    Glass Fiber Reinforced Polymer (GFRP) rebar has the potential to contribute to the durability of various construction structures, including bridges, buildings, and … + READ MORE
    Glass Fiber Reinforced Polymer (GFRP) rebar has the potential to contribute to the durability of various construction structures, including bridges, buildings, and tunnels. The manufacturing process of GFRP rebar involves a high-temperature heating stage, and the impact of such elevated temperature on the properties and performance of GFRP rebar has not been extensively studied. Therefore, this study aims to analyze the quality characteristics of GFRP rebar products based on the usage of curing agents, heating temperature, and production speed. In this regard, various GFRP rebar products were produced by varying the curing agent dosage, heating temperature across six zones, and production speed. Visual inspections focused on the presence of indentation marks, carbonization, generation of bubbles, and occurrence of bending. Additionally, to estimate the interrelation between product quality and strength, flexural strength was measured and analyzed. The results revealed distinct variations in indentation marks, generation of bubbles, and occurrence of bending based on curing agent conditions. Furthermore, carbonization was observed to occur when the heating temperature exceeded 220°C. - COLLAPSE
    30 December 2023
  • General Article

    Development of a carbon emission evaluation system for precast concrete products in South Korea
    Mina Seong, Rakhyun Kim, Seonguk Hong, Seungyoup Lee and Seungjun Roh
    Precast concrete, recognized as a prominent method within the Off-Site Construction paradigm, is anticipated to offer advantages in terms of safety, quality, … + READ MORE
    Precast concrete, recognized as a prominent method within the Off-Site Construction paradigm, is anticipated to offer advantages in terms of safety, quality, and carbon footprint reduction. This study aims to develop a carbon emission evaluation system for precast concrete products, a secondary product of concrete. To establish a methodology for carbon emission assessment in the pre-manufacturing, manufacturing, transportation, and disposal stages of precast concrete products, a system based on Microsoft Office Excel was developed. Furthermore, a case study was conducted using the developed system, revealing that the pre-manufacturing stage had the highest carbon emissions, with steel materials demonstrating the highest emissions. - COLLAPSE
    30 December 2023
  • General Article

    A Study on the characteristics of the art spaces of the Oil Tank Culture Park developed for cultural urban regeneration
    Jiwon Choi and Sumi Yoon
    In this study, we examined the Oil Tank Culture Park developed for cultural urban regeneration and analyzed the characteristics of the art … + READ MORE
    In this study, we examined the Oil Tank Culture Park developed for cultural urban regeneration and analyzed the characteristics of the art spaces based on the artistic activities of each artist. Our analysis focused on the Tank 1 (T1), Tank 2 (T2), and Tank 4 (T4) areas of the Oil Tank Culture Park, which serve as primary hubs for artistic activities, rather than the entirety of the park. Moreover, we investigated the current status of the artistic activities performed in this complex by focusing on external performances based on venue rental. The characteristics of the art spaces of the Oil Tank Culture Park based on the analytic results are as follows. First, visual elements of these spaces, such as visible historical and cultural features, synergistically contribute to enhancing the power of artistic expression. Second, these spaces function as complex areas, each of which can be adjusted or dismantled for different purposes and forms. Third, these spaces represent regeneration based on the transformation of past structures into modern artworks. Furthermore, we reviewed artistic programs operated by the Oil Tank Culture Park to analyze the unique characteristics of its art spaces created by the artworks placed in them. The analytic results are as follows. First, these spaces amplify the power of artistic expression based on visual elements. Second, these spaces accentuate spatial complexity. Third, these spaces prominently showcase regenerative value. - COLLAPSE
    30 December 2023
Journal Informaiton International Journal of Sustainable Building Technology and Urban Development International Journal of Sustainable Building Technology and Urban Development
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