( Vol 29 , Issue 09 )
07 Sep 2025
( Vol 30 , Issue 04 )
31 May 2026
Research Journal of Chemistry and Environment (ISSN:0972-0626) is a monthly peer-reviewed scopus-indexed journal from 2007 to Present. The publisher of this journal is the Journal of International Congress of Chemistry and Environment. RJCE is committed to gathering and disseminating excellent research achievements.The journal welcomes all kind of research/review/abstract papers regarding Engineering subjects including Earth and Planetary Sciences,Environmental Science,Chemical Engineering,Agricultural and Biological Sciences,Renewable Energy,Biochemistry.
Modification of asphalt with nanocomposite now it's considered a new approach to improvement of the asphalt characteristics, Chalcogenide d-element it will be used here as an improver to asphalt. The physical and mechanical characteristics of asphalt were examined in this paper, along with comparative rheological testing on binders and mechanical tests for unmodified and modified asphalt with nanocomposite (ZnO/PMMA). In order to increase its performance, a ZnO/PMMA nanocomposite was added to asphalt (60/70) and binders in different amounts (0.2%, 0.4%, 0.6%, 0.8%, and 1%). It was disco
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Various commercial thermoplastic polymers, including styrene-butadiene rubber (SBR), polyacrylonitrile (K), polystyrene (PS), polypropylene (PP), and polychloroprene (PC), are employed to modify two types of asphalt: asphalt 60/70 Suez (L) and asphalt 80/100 Alex (H). The optimal ratio of polymer additives, introduced using a hot mixing process at temperatures between 150°C and 170°C, was determined based on the measurements of penetration, softening point, penetration temperature susceptibility (PTS), and penetration index (PI) for the cooled blended formulations. For asphalt L, th
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Four distinct bisphenols and their corresponding low molecular weight epoxy resins (1, 2, 3, and 4) were synthesized and thoroughly and thoroughly propertiezed. Every resin was utilized as an additive, combined with a high-temperature hardener, to modify two types of locally available asphalt (designated M and N types) with varied constituents. The study assessed the performance of these epoxy resin-asphalt mixtures in enhancing critical properties such as penetration, softening point, penetration temperature susceptibility (PTT), and penetration index (PI). These improvements were analyzed
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Accurate multilingual translation remains challenging due to data imbalance, negative transfer, and uncontrolled error propagation. This paper proposes a Confidence-Guided Modular Multilingual Translation Framework (CGMMTF) to address these limitations. The framework integrates language-aware modular learning with confidence-driven adaptation to improve translation reliability across languages. CGMMTF selectively shares knowledge while preserving language-specific characteristics. Error propagation is reduced through internal consistency checks. Experimental evaluation demonstrates improved
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The present study evaluates the extraction efficiency, quantitative phytochemical composition, and in-vitro antioxidant potential of Nymphaea nouchali flower extracts obtained using solvents of varying polarity. The aqueous extract showed the highest extraction yield (5.86 g/100 g), followed by ethyl acetate (5.66 g/100 g) and acetone (5.41 g/100 g), whereas petroleum ether produced the lowest yield (1.41 g/100 g). Phytochemical analysis revealed maximum total phenolic content in ethanol (20.02 ± 0.08 mg GAE/g) and highest total flavonoid content in methanol (15.87
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In the present study, a novel series of N-substituted 3,3a,4,5,6,7-hexahydro-2H-indazole derivatives bearing trifluoromethyl-substituted styryl and phenyl allylidene moieties were successfully designed, synthesized, and evaluated for their pharmacological potential. The synthetic strategy involved a three-step protocol comprising base-catalysed Claisen–Schmidt condensation, hydrazone-mediated cyclization, and selective N-acylation, affording the target derivatives in moderate to excellent yields. Structural elucidation of all synthesized compounds was accomplished using UV–Visib
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Epoxy (EP) composites holding DOPO-based flame retardant (DD) and its metal complexes (Cu–DD and Zn–DD) were synthesized to improve flame retardancy. The flammability performance was measured using UL-94 and limiting oxygen index (LOI) tests. Pure EP exhibited poor flame resistance with a LOI of 18.2% and no UL-94 rating, whereas EP/Cu–DD and EP/Zn–DD attained LOI values of 29.0 and 29.4%, respectively, and V-0 ratings in UL-94 tests. SEM–EDX analysis confirmed homogeneous distribution of phosphorus, copper, and zinc within the epoxy matrix. Thermogravimetric a
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