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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]

Copper (Cu) loses its useful properties in some environments due to corrosion. This work proposes chloroform extract of mint leaves (CEML) as a coating material for lowering Cu loss in 0.5 M NaCl. The CEML has been synthesized using a simple extraction process and examined through UV-Vis and FTIR spectroscopy. NiO nanoparticles (NPs) are synthesized using water extract of mint leaves (AEML) and studied using field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) patterns. The investigation suggests that mint-leaf-modified NiO NPs have been formed. The CEML is drop-cast on Cu in layers (1–3 layers) without and with different amounts of NPs (5–20 mg). The corrosion prevention potential of CEML coating on Cu without and with NiO NPs has been examined using open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and Tafel polarization curves (TPC). The maximum prevention efficiencies of 88% and 97% have been achieved using two layers of CEML coating and one layer of CEML with 15 mg NiO NPs. The surface conditions of the bare and coated Cu have been recorded using FESEM and atomic force microscopy (AFM), which reveal that the coated Cu (CEML and CEML + NiO) appears to be protected. The corrosion products have been analyzed using EDX, which indicates the presence of oxides, chlorides, and hydroxides of Cu. The hydrophobicity of the bare and coated Cu has been determined from water contact angle (WCA) measurements. A corrosion prevention mechanism is also proposed based on the results achieved. [ABSTRACT FROM AUTHOR]

Electric vehicles are seen as an alternative option given the scarcity of resources. In order to increase the usage of EVs in daily life, convenient and reliable methods of charging EV batteries are very important, so Wireless Power Transfer (WPT) is being considered as a solution to charge the batteries. In this project, prototype hardware for charging system with dual coils and operating frequency of 60 kHz will be designed and implemented. Plug-in electric vehicles (PEVs) are overwhelmed by the need for plug-in cables and chargers, the galvanic isolation of the onboard electronics, the bulk and cost of this charger, and the large assemblies of energy storage systems (ESS) required. But through the use of wireless charging systems, wireless charging capability offers customer convenience, inherent electrical isolation, gridside regulation, and reduces the size of onboard ESS through on-road dynamic charging. The main goal of our project is to design and develop a vehicle-grade antenna system that uses resonant magnetically-coupled wireless energy transfer technology to EV charging system. The use of WPT in electric vehicles enables clean, comfortable and safe operation. At the heart of WPT systems are primary and secondary coils. These coils form a weakly coupled system where the coupling coefficient is between 0.1 and 0.5. To transmit the rated power, both sides must be tuned by resonance capacitors. The operating frequency is a central selection criterion for all applications and particularly influences the dimensioning of the coils and the selection of the components for the power electronic circuit. A resonant wireless transmission system is designed for vehicle charging technology. [ABSTRACT FROM AUTHOR]

The paper examines the implementation of lean practices in service operations of homestay establishments. The assessment is done in three ways – the assessment of lean knowledge, assessment of lean implementation, and assessment of community participation. Lean implementation includes four major constructs as waste elimination, transparency, quality management, and workforce empowerment & treatment. This paper uses a case study methodology and addresses five different establishments. Within case analysis, cross-case comparisons have been used as the techniques to analyze the data collected on the constructs and sub-constructs obtained from literature. The study has explored multiple scenarios of lean implementation with varying lean knowledge. It further observes three different practitioners of lean management as methodic, admirer, and sustained believer. The study has its implications for both researchers and managers. [ABSTRACT FROM AUTHOR]