Faculty Publications

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    Cost reduction techniques on MEP projects
    (Springer, 2019) Akhil, R.P.; Das, B.B.
    For a construction project main objective is to complete the work on time and achieve the desired profit by giving the required quality to the customer. To complete the work on time, planning and scheduling have the key roles. Reducing the cost of project is done by a continuous process, the cost-dependent factors should be identified and various methods should be implemented to get the cost reduced. In this paper construction, cost reduction methods are analysed and the implementation of such methods in MEP (Mechanical electrical pluming) projects are discussed. Construction work and MEP work will be tedious and losses due to improper planning of project, early allocation of materials, unskilled labours and shortage, price fluctuation of materials, delay in supply of materials, rework and wastage of materials, wrong budgeting, weather deflections, unorganised management and control, coordination problems of service and civil works, etc. All these obstructions will result in delay of projects and cost overrun. Time and cost optimisation can be done by various techniques which is major for a project for its successful completion. This paper reviewed best cost optimisation methods and summarise the suitable method for Indian construction industry. This study mainly discussed on different techniques to reduce the cost in MEP projects and difficulty facing to implement this techniques and its betterment of execution. © Springer Nature Singapore Pte Ltd. 2019.
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    Developing a Standard Template for Activity Linkage and Resource Estimation of MEP Works
    (Springer Science and Business Media Deutschland GmbH, 2021) Shekhar, S.; Shukla, P.; Das, B.B.
    Project planning is the most essential part of project management. It plays a vital role in effective completion of a project. A well-developed project plan and schedule are very helpful in managing project costs more efficiently and can preclude time overruns. Mechanical, Electrical and Plumbing (MEP) works being one of the key parts of construction project also require detailed and specific attention in terms of planning. Planning of these works in terms of activity linkage and resource identification is not properly emphasized leading to loop holes in their execution which further is responsible for cost and time overruns. The current study helps in understanding various activities involved in MEP works, how they are related to each other, what are the civil constraints that affect these activities, how their concurrent occurrence can lead to development of complexity which forces one to properly identify and estimate the resources required for their smooth execution. Productivity Rate Method is one of the estimating tools that is used and compared to the actual resource requirement. A template is developed, conceptually based on the activity linkage, which can be directly implemented in a project with similar services. In addition, this template contains the resources required for execution of enlisted activities. Hence, it can be used as a technical tool for efficient planning of MEP works, which further leads to successful accomplishment of project’s goals and objectives. © 2021, Springer Nature Singapore Pte Ltd.
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    Eco-friendly mercury ion detection and removal in water using anthocyanins: Mechanistic insights through DFT studies
    (Elsevier Ltd, 2025) Mane, P.V.; Mahishi, A.; Bhat, M.P.; Lee, K.-H.; Swamynayaka, A.; Mahendra, M.; Isloor, A.M.; Kurkuri, M.
    A variety of natural extracts have been employed for the colorimetric detection of toxic metal ions in water due to their sustainability and low cost. However, the inherent structural instability of these extracts poses significant challenges in elucidating their interactions with metal ions. This necessitates the use of theoretical studies to provide robust mechanistic insights that complement experimental findings. In this study, we extracted anthocyanins from Hibiscus sabdariffa to develop a natural colorimetric sensor for the detection of mercury (Hg²?) ions in aqueous solutions. The sensor exhibited a distinct color change from pink to colorless, attributed to the formation of a coordination complex via the Hard and Soft Acids and Bases (HSAB) principle with high sensitivity and a detection limit of 13 ppm. To further understand the interaction mechanism, we performed Density Functional Theory (DFT) calculations that corroborated the experimental mechanism, revealing a significant reduction in the energy gap between the Highest Occupied Molecular Orbital (HOMO) and the Lowest Unoccupied Molecular Orbital (LUMO) of the anthocyanin (ATC) from 2.688 eV to 1.366 eV upon complexation with Hg²? ions. Furthermore, the developed sensor was capable of removing the Hg2+ ions from water samples at lower concentrations (below 100 ppm). The studies indicate the potential application of anthocyanin extract as a significant sensor for Hg2+ in aqueous solutions. Consequently, this simple, eco-friendly, and instant method for detecting Hg2+ ions could pave the way for a promising sensor for toxic metal ion pollutants in industrially significant water sources. © 2025 Elsevier Ltd