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This research aims to examine how an exhibitor manages its relationship with visitors in trade fairs to achieve desired outcomes. Drawing on the relational (group-value) model of justice, this research argues that visitors' procedural and distributive fairness perceptions impact their happiness, relationship commitment, and behavioral intentions with exhibitors. Data comprising 350 business visitors from eight trade fairs related to the electronics, telecommunications, automobiles, apparel, and renewable energy industries were analyzed. The findings show that while procedural fairness perceptions significantly impact visitors' happiness, distributive fairness perceptions do not have a significant relationship. Happiness leads to a positive relationship between visitors' commitment and behavioral outcomes. This research is one of the earliest attempts to evaluate the role of fairness perceptions and happiness in the context of trade fairs. The results also indicate that small-scale visitors show less concern for procedural fairness than large-scale visitors, but they show a higher tendency for relationship commitment and behavioral intentions than large-scale visitors. [ABSTRACT FROM AUTHOR]

Natural and waste materials could be a successful and economical strategy for saving metals from corrosion because they could easily exchange electrons with the metals through their biomolecules. This work reported the use of waste sponge gourd peels (SGP) for the suppression of mild steel (MS) loss after dipping in 0.5 M NaCl. The water and ethanolic extracts of sponge gourd peels (SGPAE and SGPEE) had been prepared and characterized by Fourier transform infrared spectroscopy (FTIR). Both extracts were found to be loaded with biomolecules. SGPAE was used as an inhibitor, and SGPEE was utilized as a coating. Different concentrations (50–300 mg L−1) of SGPAE were added to 0.5 M NaCl, and SGPEE layers (1–5) were deposited on MS via drop casting and then exposed to salty water. The corrosion testing had been performed by open circuit potential (OCP) monitoring, Tafel polarization curves (TC), electrochemical impedance spectroscopy (EIS), field ion emission scanning electron microscopy (FESEM), energy dispersive X-ray spectra (EDX), and atomic force microscopy (AFM). The testing had shown that both extracts were effective against MS corrosion. SGPAE had shown maximum inhibition at 200 mg L−1 (75%), and SGPEE had shown maximum protection of 83% for 4 layers. The cause of MS protection by SGP was claimed to be the coverage of MS by the adsorbed molecules (SGPAE) or thin barrier layers of molecules (SGPEE). The reason for protection was also explained through an illustration. [ABSTRACT FROM AUTHOR]