Semnan University

Investigation of the Behavior of Corroded and Noncorroded Steel Bars with Mechanical Splices in Reinforced Concrete Structures

Abstract Mechanical splices enable continuity of reinforcement, yet their behavior under corrosion remains a concern. We experimentally compare spliced (threaded couplers) and unspliced bars in corroded and noncorroded conditions across common diameters (16–22 mm). An accelerated...

Thermophysical characterization, kinetic analysis, and multi-response optimization of paraffin wax/eicosane binary mixtures for lithium-ion battery thermal management system

Efficient thermal management is essential for the safety, performance, and lifetime of lithium-ion batteries, especially in high-power applications such as electric vehicles, where elevated temperatures and thermal non-uniformity accelerate degradation. Passive cooling by phase c...

Photocatalytic degradation of methyl orange under ultraviolet–visible light irradiation using WO3-ZnO nanocomposites synthesized via Saffron petal extract

The elimination of organic dyes through photocatalysis is an effective approach for achieving pollution-free environments. WO 3 -ZnO nanocomposites with ZnO:WO₃ weight ratios of 100:0, 80:20, 60:40, 40:60, 20:80, and 0:100, labeled as 100Z, 20WZ, 40WZ, 60WZ, 80WZ, and 100W, respe...

A novel plastic-mechanism-based approach for determining the coupling degree in coupled steel plate shear wall systems

A reliable evaluation of the degree of coupling (DC) is essential for understanding the seismic behavior and design performance of coupled steel plate shear walls (CSPSWs). Existing analytical approaches may exhibit reduced accuracy, particularly for highly coupled systems becaus...

Hybrid graph-temporal modeling with uncertainty-aware Transformers for elderly fall detection

The accurate detection of falls, particularly among elderly populations, remains a critical challenge in smart health monitoring due to the severe physical and psychological consequences of delayed intervention. In this work, a novel hybrid fall detection framework is proposed, w...

Between gatekeeping and coping: Iranian EFL students’ lived experience of AI-mediated writing assessment

The rapid proliferation of Generative Artificial Intelligence (GenAI) has destabilized foundational assumptions in second language writing assessment. The dominant scholarly response—concentrating on detection, psychometric validity, and pedagogical integration—has systematically...

Molecular detection and biovar characterization of Brucella melitensis in sera from wright-positive individuals in western Iran

Abstract Brucellosis remains a major zoonotic disease and an important public health concern in western Iran. This study aimed to molecularly detect Brucella spp., identify Brucella melitensis , and characterize its biovar in serum samples from Wright-positive individuals in five...

Monitoring viral SARS-CoV-2 spike glycans using silicon carbide nanotubes as optical biosensors: a quantum simulation

Abstract In this paper, the sensitivity of nanotube-based nano sensors composed of silicon carbide to viral environments have been investigated. For this purpose, we designed various SiCNTs and calculated the electronic properties of each. The effects of N-linked and O-linked vir...

A decision-making architecture for sustainability: Optimization of human resource management with triple bottom line in the extractive sector using a multi-objective approach

Purpose This research develops a mathematical decision-making model to optimise sustainable human resource management (HRM) performance based on the Triple Bottom Line (TBL), using the Iranian oil industry as an empirical case within resource-intensive sectors. Design/methodology...