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Screw pine root fibers are engineering fibers that have yet to be explored in terms of its chemistry with bio-rcsin in biodegradable composites to replace nonbiodegradable thermoplastics used in packaging, automobiles, furniture, and industrial sectors. Screw pine root fibers are reinforced with soy, polyvinyl alcohol), and soy-poly(vinyl alcohol) resin systems in this work to create a variety of compositcs. Composites demonstrated highest amount of tensile strength at around 39.7 MPa, 37.6 MPa of flexural property, along with an impact strength around 12.4 kJ/[m.sup.2]. The thermal solidity of the optimized materiai was determined to be 235:C. After 24 hours of immersion, the composite had the lowest water absorption of 18.4%. All composites were shown to be biodegradable, losing about 54.2%-72.9% of their original mass after 60 days in soil burial. Unique characteristics such as the use of low-cost agricultural materials, water-based resin, stable composite, and properties such as moderately strong, safe disposal after serv ice periods make these manufactured composites market feasible as consumer-friendlv/ecofriendly green products. Highlights * Screw pine root fibers were extracted from waste roots and used as reinforcement. * The tensile strength of the composite was achieved as 39.7 MPa. * The water absorption of hybrid composite was found 30.8% after 74 h. * After 60 days under soil burial, composite lost 67.5% of its original weight * Developed composites can be good alternant for nondcgradable thermoplastic. KEYWORDS biocomposite, green composite, polyvinyl alcohol), screw pine root liber, soy, 1 | INTRODUCTION Polymers are amazingly interconnected with human life in the world of today, supporting and facilitating it. The products we use every day, such as household appliances, packaging [...]

Natural fiber-reinforced biocomposites offer sustainable alternatives to conventional plastics. This study investigates the development of biocomposites using coconut spathe fiber, a renewable byproduct, reinforced with corn starch and poly(vinyl alcohol). The composites demonstrated significant mechanical properties, including a tensile strength of 46.8 MPa, flexural strength of 42.1 MPa, and an impact strength of 11.2 kJ m−2. Water absorption was limited to 33.6% after 24 hours, indicating hydrolytic stability. Biodegradation tests confirmed the complete breakdown of the material in composting conditions. These findings highlight the potential of coconut spathe-based biocomposites for applications in the automotive and packaging industries, addressing the need for sustainable and biodegradable materials in place of non-degradable thermoplastics. [ABSTRACT FROM AUTHOR]

Jarosite, an industrial waste, has the potential to be used as an alternative filler in biocomposites used as packaging material and can replace nondegradable thermoplastic. Such a novel approach of waste management strategy has not been studied till date. In this research work, different weight percentages of jarosite were mixed with poly(vinyl alcohol) (PVA) to fabricate polymer composites with better physico‐chemical, thermal, tensile, and biodegradation properties. The data indicate that a low concentration of jarosite (3 wt.%) improved the tensile strength by 198.7% and the composite showed higher thermal stability by 6.3% than that of the neat PVA. X‐ray diffractogram and transmission electron microscopic analysis revealed a strong interaction between PVA and jarosite. Interestingly, the addition of jarosite reduced the water absorption capacity and thickness swelling of the PVA composite by 58% and 54.7%, respectively. Jarosite‐incorporated composites showed lesser degradation potential (64%) than the control composites (84%) after 60 days under soil burial conditions, indicating that PVA‐jarosite composites have a higher shelf‐life, which is needed for packaging materials. These composites can also be good alternant for thermoplastic used in preparation of cuboid, sealing, and decorative materials. Also, this would be a novel sustainable approach for managing/reducing jarosite waste. Highlights: Jarosite was reinforced with PVA to fabricate biocomposites.The maximum tensile strength of the composite was achieved as 45.4 MPa.The thermal stability of mechanically optimized composite is found at 320°C.After 60 days under soil burial, the composite lost 64.8% of its original weight.Developed composites can be good alternant for nondegradable thermoplastic. [ABSTRACT FROM AUTHOR]

In general, Schrödinger's equations have lots of applications in quantum mechanics. Accordingly, in this paper, some new forms of the exact traveling wave solutions have been obtained for two different types of Schrödinger's equations, namely the unstable generalized nonlinear Schrödinger's equation and the hyperbolic nonlinear Schrödinger's equation. In the literature one can see different forms of the solution by various existing methods. However, the applied methodology or obtained results are sometimes complicated in nature. So here to obtain the new and simple forms of the solutions for both of the equations we have used a very simple and important method known as sine-cosine method. In addition, the probability density functions (PDFs) for both of the considered problems have also been computed. To visualize the impact of the solutions, graphical representations have been made with respect to various parameters. From the results one can see, they are in terms of complex-valued functions. In special cases comparison has also been given. Furthermore, the results are computed and validated using the Maple software. [ABSTRACT FROM AUTHOR]

This paper proposes two new computational methods for solving linear programming problem under trapezoidal and triangular fuzzy uncertainties with equality constraints. The coefficients of the constraints and the objective functions are assumed to be crisp. However, the decision variables and the right-hand side vector of the constraints are considered as uncertain in nature. The concepts of fuzzy addition and subtraction have been used to develop the proposed methods. In the first method, the coefficients are considered as non-negative, whereas mixed coefficients (i.e. both negative and non-negative) are considered in the second method. The obtained results are compared with Behera et al. [D. Behera, K. Peters and S. A. Edalatpanah, Alternative methods for linear programming problem under triangular fuzzy uncertainty, Journal of Statistics and Management Systems, 25 (2022) 521–539; D. Behera, K. Peters, S. A. Edalatpanah and D. Qiu, New methods for solving imprecisely defined linear programming problem under trapezoidal fuzzy uncertainty, Journal of Information and Optimization Sciences, 42 (2021) 603–629], and Saati et al. [S. Saati, M. Tavana, A. Hatami-Marbini and E. Hajiakhondi, A fuzzy linear programming model with fuzzy parameters and decision variables, International Journal ofInformation and Decision Sciences, 7 (2015) 312–333.] for the validation. [ABSTRACT FROM AUTHOR]