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Introduction Amines have been known for a number of years as effective corrosion inhibitors. Their efficiency is attributed to the presence of the nitrogen atom acting as the active centre for the adsorption of organic molecules on the metal surface. Several aliphatic and aromatic amines have been reported to serve as effective corrosion inhibitors for iron and steel in acidic solutions. The nitrogen‐containing corrosion inhibitor exhibited a very good performance in hydrochloric acid, but very little effect in sulphuric acid. Hence a study of the mechanism by which the corrosion rate is reduced when these organic compounds are added to solutions is of interest. In this study the inhibition of corrosion of mild steel in HCl and H2SO4 has been studied using different electrochemical techniques. Results are reported and discussed.

Portfolios of temporary organisations, particularly portfolios of R&D projects with different project partners, are a common yet understudied phenomenon. We know that these portfolios suffer from tensions inherent in project portfolio ambidexterity (e.g. portfolios balancing R&D projects with new and recurrent partners), yet our understanding of what might lessen these tensions remains limited. This study introduces the idea of project portfolio maturity and theorises how it can mitigate the negative effects of ambidextrous project portfolios. We test our hypotheses by combining proprietary survey and archival data on 136 R&D project portfolios in the German biotechnology industry covering project partnerships with both new and recurrent partners. Our results show that ambidextrous project portfolios hamper firm performance and that portfolio maturity mitigates these negative effects. By introducing a new perspective on project portfolios that accounts for overlooked temporal dimensions, this study provides a new contingency that has the potential to ease the tensions that result from projects with new and recurrent partners. We thereby add to the literatures on temporary organising, project portfolios, and ambidexterity.

The influence of thiophenol on the corrosion and hydrogen permeation 1M HCl and 0.SM H₂SO₄ has weightloss measurements, gasometric studies and other electrochemical techniques. Thiophenol inhibits the corrosion of mild steel in both the acids, but it is found to be more effective in H₂SO₄. It behaves predominantly as a cathodic inhibitor. It brings down the permeation current in both the acids, but is more effective in H₂SO₄. The adsorption of thiophenol on the mild steel surface from both the acids obeys Temkin’s adsorption isotherm.

Studies on inter-firm relationships have recently shifted their attention from dyadic networks to more globally driven network structures. This condition occurs because embeddedness in global network structures may improve firm innovation and performance. In addition, the improvement of firm innovativeness and performance seems higher when globally networked firms both compete and cooperate between and among them. In this paper, we categorize the simultaneous interplay of cooperation and competition in the global arena as global network coopetition (GNC). Under GNC, multinational enterprises act jointly with their global partners-rivals to improve performance, at the same time by sharing complementary resources (cooperation side) and by undertaking independent actions to enhance their own performance (competition side). This paper aims to expand existing research on network and global coopetition by shedding light on the effects of coopetition between and among firms belonging to global network structures on value capture and innovation performance.

Using a sample of 100 firms belonging to 14 industries organized in 47 global networks of different sizes, the authors conducted a longitudinal empirical study over the period 2000-2014 covering 1,098 observations, 1,717 interfirm relationships and 78 inter-networks linkages. A multiple regression model on panel data with random effects was conducted on the sample of 1,098 observations related to the global automotive industry to test the research hypotheses.

Findings show that GNC enhances firm performance and innovation outcomes. In addition to GNC, structural characteristics such as network size, network position and network diversity have significant positive or negative effects on innovation and performance outcomes of firms belonging to these global network structures.

Our research offers a contribution to the literature dealing with global networked structures’ effects on firm innovation performance. In fact, it effectively complements prior work on outcomes of coopetition between firms embedded in complex network structures. It also advances research in the area by introducing the notion of GNC as a network by which firms can enhance their innovation performance and, therefore, their global innovation performance. This study has some limitations. First, we acknowledge that it is focused only on 14 global coopetitive networks. It could be promising to extend the scope to integrate other networks. Second, our measures of firm actions as based on a content analysis of news reports related to firms. It would be important to complement this data collection by conducting a qualitative analysis (interviews). Atlast, it could be promising to include the study of customer needs in the new product development process.

Our study also offers some insights into the management of coopetition. In fact, by taking into account the existence of a context in which global coopetition networks play a role, managers may be better positioned to effectively deal with the paradox of being a partner of their direct rivals to improve their firms’ innovativeness and, consequently, achieve good performance, on the one hand, and to maintain relationships within several networks by taking into account their structural properties such as centrality and diversity, on the other hand.

We contribute to extant network coopetition literature in two ways. First, we introduce the notion of GNC to detect coopetition occurrence in global network structures. GNC refers to a context where actors in various networks belonging to different industries and geographies cooperate in a one (or more) innovative project/s, while simultaneously keeping on competing within and between their networks. Second, we contribute to network coopetition by analyzing specific GNC effects on firm innovation performance. In so doing, we can provide a deeper analytical understanding of GNC performance effects on firms operating in global network contexts.

This study aims to examine the effects of cross-flow and multiple jet impingement on conductive panel cooling performance when subjected to uniform magnetic field effects. The cooling system has double rotating cylinders.

Cross-flow ratios (CFR) ranging from 0.1 to 1, magnetic field strength (Ha) ranging from 0 to 50 and cylinder rotation speed (Rew) ranging from −5,000 to 5,000 are the relevant parameters that are included in the numerical analysis. Finite element method is used as solution technique. Radial basis networks are used for the prediction of average Nusselt number (Nu), average surface temperature of the panel and temperature uniformity effects when varying the impacts of cross-flow, magnetic field and rotations of the double cylinder in the cooling channel.

The effect of CFR on cooling efficiency and temperature uniformity is favorable. By raising the CFR to the highest value under the magnetic field, the average Nu can rise by up to 18.6%, while the temperature drop and temperature difference are obtained as 1.87°C and 3.72°C. Without cylinders, magnetic field improves the cooling performance, while average Nu increases to 4.5% and 8.8% at CR = 0.1 and CR = 1, respectively. When the magnetic field is the strongest with cylinders in channel at CFR = 1, temperature difference (ΔT) is obtained as 2.5 °C. The rotational impacts on thermal performance are more significant when the cross-flow effects are weak (CFR = 0.1) compared to when they are substantial (CFR = 1). Cases without a cylinder have the worst performance for both weak and severe cross-flow effects, whereas using two rotating cylinders increases cooling performance and temperature uniformity for the conductive panel. The average surface temperature lowers by 1.2°C at CFR = 0.1 and 0.5°C at CFR = 1 when the worst and best situations are compared.

The outcomes are relevant in the design and optimization-based studies for electric cooling, photo-voltaic cooling and battery thermal management.

The influence of some N‐containing organic compounds such as tetraethanol‐β‐octadecenyl succinylamide (TOSA), morphonil‐β‐hexenyl succinylamide (MHSA), ammonium naphthenyltri‐n‐butyl chloride (ANBC) and 1‐(2,4,6‐trimethylphenyl)‐3‐diethylaminopropanol‐2 (TMAP) as inhibitors for the corrosion of carbonized steel in mineral acid (HCl and H₂SO₄) solutions with different concentrations has been studied by using gravimetrical, electrochemical and polarization corrosion test methods. Observes that all compounds having surface active properties behave as inhibitors of a functional active cathodic type and have an inhibition effect at the first stage of corrosion in both acids, but more effectively in H₂SO₄. Shows that inhibition effect increases with increase of temperature in 0.5N H₂SO₄ solution and decreases with increase of temperature for the higher concentrations of acidic solutions. Shows that TOSA and TMAP compared with MHSA and ANBC enchance protection properties of adsorption layer.

The purpose of this study is to provide a holistic view of the emergence of shareholder activism (SA) in India. However, specifically, this study aims at fulfilling the research gap by discussing the policy and legal advancement in the area of SA and investigating the chronological evolution of SA, manifestations of SA, motives of SA, outcome of SAs and impact of SA on the financial performance of the firm.

This study used a mixed methodology (both qualitative and quantitative) to draw inferences, including content analysis, descriptive statistics, independent sample t-test and paired sample t-test. The data has been collected from the annual reports of the sample companies and the Prowess database. Return on assets and return on equity have been used as measures of financial performance while investigating the difference in financial performance between firms subjected to SA and firms not subjected to SA.

The findings of this study suggest that there has been significant growth in the occurrence of SA incidents in India in the past decade, with shareholders prominently manifesting by opposing the proposals at annual general meetings/extraordinary general meetings, mostly involving governance-related demands. The findings from the independent sample t-tests revealed that there has been a significant difference in the financial performance of the sample subjected to SA and firms not subjected to SA. Furthermore, the results of the paired sample t-test provide strong evidence of significant improvement in the financial performance of firms’ post-SA.

The findings of this study have implications for various stakeholders. The findings of this study suggest that SA has been relatively more successful in the Indian context and may encourage minority shareholders to follow active participation through shareholder proposals and votes rather than a passive strategy to trade and exit. For firms, it can provide valuable inferences about the emergence of SA and how it has a positive impact on the financial performance of the firm, which can lead to a change in the perception of investors and promoters who perceive SA as a threat (Gillan and Starks 2000; Hartzell and Starks, 2003). For policymakers, it can act as a tool to investigate whether the regulatory changes have been able to bring the intended transparency, accountability and enhanced shareholder participation. This will encourage policymakers to be more agile, as their efforts are bearing fruit. This will also act as a guide to formulating future policies and regulations.

This study is an effort to provide a holistic view of SA scenarios in a developing economy setting like India, where SA is a very recent phenomenon. Although there are studies in the area of SA, there is a dearth of studies that have investigated the various dimensions of SA in the Indian context in a very systematic and extensive manner, investigating all the different dimensions of SA. Furthermore, this study also intends to investigate the impact of SA, which is normally perceived as a threat to financial performance and provide valuable contrasting evidence.

The aim of this study is to empirically test the relationship between supply chain performance and organizational performance mediated by customer satisfaction.

Respondents of this study include all the supply chain stakeholders, managers working in the dairy industry, bulk milk chillers/coolers (BMCs), farmer producers, wholesalers, transporters, retailers and consumers. The final sample has 67 firms and their forward and backward linkages, taking the total sample size to 1,139. Mediation analysis was performed using SPSS AMOS v26 to analyze the impact of supply chain performance on organizational performance mediated by customer satisfaction.

The findings of this study reveal that supply chain performance positively impacts organizational performance, and customer satisfaction partially mediates the relationship between them.

This study provides an opportunity for future researchers to test this model in different locations and different industries, incorporating other mediating variables, such as risk, coordination, supply chain orientation etc., as antecedents and operational, economic and marketing performance as consequences.

The study suggests that enhanced organizational performance requires supply chain management to be treated as a strategic function. Managers working at the processing/manufacturing level must focus on improving supply chain performance indicators through collaboration with supply chain stakeholders.

The present study adds to the existing literature by adopting a new supply chain performance measurement approach. The current literature has focused primarily on supply chain practices to study their impact on customer satisfaction and organizational performance. In contrast, the present study demonstrates how improvement in supply chain performance can enhance organizational performance through customer satisfaction.

The purpose of this paper is to describe the current research on hospital continuous improvement projects (CIPs) from an author characteristics’ perspective. This work addresses the following questions: who are the predominant research authors in hospital CIPs? To what extent are the research communities collaborating in distinct research groups? How internationalized has hospital CIPs research become with respect to author location?

A systematic literature review was conducted, identifying 302 academic publications related to hospital CIPs. Publications were analyzed using: author, quantity, diversity, collaboration, and impact.

Hospital CIPs are increasingly attracting new scholars each year. Based on the authors’ analysis, authors publishing in this area can be described as a relatively new international community given the countries represented.

This paper describes the current hospital CIP research by assessing author characteristics. Future work should examine additional attributes to characterize maturity such as how new knowledge is being created and to what extent new knowledge is being disseminated to practitioners.