Yazar "Kumar, Prashant" seçeneğine göre listele

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    Evaluation of railway versus highway emissions using LCA approach between the two cities of Middle Anatolia
    (Elsevier Ltd., 2019) Bilgili, Levent; Kuzu, S. Levent; Çetinkaya, Afşin Yusuf; Kumar, Prashant
    Transfer of people and transportation of goods is an indispensable part of our daily lives. Choosing the most environmentally friendly alternative will have the least impact on human health, ecosystem, and the materials. This study aims to carry out a comparative assessment of various emission scenarios from highway and railway transportation between Kırşehir and Niğde-Ulukışla in the middle Anatolian Peninsula, in Turkey, to allow making an optimum decision from an environmental viewpoint. Currently, the transportation is sustained through highway, which has 232.6?km length between the cities used as a case study. High-speed railway construction is projected on the same route. We formed different capacity alternatives as alternative scenarios and life cycle assessment approach was applied to these scenarios. Environmental damage ratio decreased with the increasing utilization ratio of the railway. The greatest change was seen in ecosystem quality. We also assessed emissions during the construction activities of both railway and highway. A social cost-benefit analysis suggested that damage cost in the current situation was €562,000. The scenario with 100% replacement of highway with railway transportation showed the lowest damage cost (€157,000) while the highest damage cost was due to NOx emissions.
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    Sustainable utilization of corn waste and their role toward the circular economy
    (Elsevier B.V., 2025) Maqsood, Sammra; Navaf, Muhammed; Kumar, Prashant; Yücetepe, Aysun; Trang Thuy, Nguyen Ngoc; Özkan, Gülay; Moreno, Andres; Çapanoğlu, Esra; Khalid, Waseem; Esatbeyoğlu, Tuba
    Corn is one of the most widely cultivated cereal crops globally. Its processing generates enormous amounts of agricultural residues, such as corn husk, corn cob, and corn silk. These by-products exhibit immense potential for value addition in the circular economy. However, these are often discarded or underutilized. This review deals with sustainable and innovative approaches for the effective utilization of different corn waste materials, emphasizing their constituents and applications. The advancement in technology, enables the transformation and value addition of corn waste residues into sustainable eco-friendly biomaterials, such as bioplastics, bioethanol, activated carbons, fiber, and bioactive compounds, contributing to the goal of the circular economy. The challenges, policy framework, and future perspectives of the sustainable utilization of corn waste materials are also discussed. This review aims to provide a comprehensive understanding of corn waste valorization strategies and their transformative role in promoting a circular bioeconomy.