Highly efficient heat‐resistant paint formulations based on Egyptian manganese ore (high and medium grades) and silicon resin were prepared. The heat‐resistance efficiency as well…
Abstract
Highly efficient heat‐resistant paint formulations based on Egyptian manganese ore (high and medium grades) and silicon resin were prepared. The heat‐resistance efficiency as well as the physico‐mechanical properties of the painted films were evaluated. Promising results were deduced, showing that manganese ore imparts heat‐resistance protection for painted substrate up to 450°C. The anticorrosive properties of these paint formulations were moderate but their efficiency as heat‐resistant anticorrosive paints was improved by adding 1 per cent of melamine to the paint constituents.
E.A.M. Youssef, D.E. El‐Nashaar and M.A. Abd El‐Ghaffar
Itaconic acid was reacted with phenylene diamine (ortho, meta and para) and o‐tolidine in boiling dekalin, using Dean and Stark apparatus. The polymers prepared were evaluated for…
Abstract
Itaconic acid was reacted with phenylene diamine (ortho, meta and para) and o‐tolidine in boiling dekalin, using Dean and Stark apparatus. The polymers prepared were evaluated for their suitability as antioxidants for natural rubber vulcanizates. The amide polymers prepared showed high efficiency as antioxidants for rubber vulcanizates, exceeding the performance of commercial antioxidants. In addition, the results obtained are encouraging and support the use of these polymers from both the environmental and economical points of view.
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A‐A.M.A. Nada, E.A.M. Youssef and K.N. Abdel‐Nour
Presents findings from a study of the effects of treating unbleached bagasse paper sheets with different resin solutions. Unbleached kraft bagasse paper sheets were treated with…
Abstract
Presents findings from a study of the effects of treating unbleached bagasse paper sheets with different resin solutions. Unbleached kraft bagasse paper sheets were treated with different resin solutions such as nitrocellulose, melamine formaldehyde, silicone, short and medium alkyd resin and the physico‐mechanical properties of the modified paper sheets were tested. The strength properties of treated paper sheets were highly improved especially in the case of treatment with melamine formaldehyde and silicone resin solutions. The effect of dipping time of paper sheets in different concentrations of resin solution on the strength properties was also investigated. Physico‐mechanical properties of thermally treated modified paper sheets with resins were also clarified. Concludes that promising results in the improvement of insulation of treated paper sheets with resin are obtained by studying the dielectric‐electric properties.
M.A. Abd El‐Ghaffar, E.A.M. Youssef, M.M.H. Abo‐Shosa and N.A. Ibrahim
Modifies short and medium alkyd resins using perfluori‐nated urethane toluene isocyanate (PFUTI), and incorporates the modified resins in a set of paint formulations containing…
Abstract
Modifies short and medium alkyd resins using perfluori‐nated urethane toluene isocyanate (PFUTI), and incorporates the modified resins in a set of paint formulations containing different ratios of zinc phosphate as an inhibitive pigment. Achieves promising results and illustrates corrosion‐protective properties in various paint formulations and also a paint formulation free of the inhibitive pigment. Shows enhancement of the corrosion protection efficiencies by the improvement in the hydrophobicity of alkyd resin modified with PFUTI. In view of these results, minimizes or neglects the most expensive inhibitive pigments from an economical standpoint.
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A.A. Abd El‐Hakim, M.A. Abd El‐Ghaffar, M.M. Abd El‐Malek and E.A.M. Youssef
Results and discussion Adsorption isotherms of stearic acid on the surface of manganese ore samples:
M.A. Abd El‐Ghaffar, E.A.M. Youssef, M.M.H. Abo‐Shosha and N.A. Ibrahim
Short and medium alkyd resins were modified using perfluorinated urethane toluene isocyanate (PFUTI). The modified resins were incorporated in a set of paint formulations…
Abstract
Short and medium alkyd resins were modified using perfluorinated urethane toluene isocyanate (PFUTI). The modified resins were incorporated in a set of paint formulations containing different ratios of zinc phosphate as an inhibitive pigment. Promising results were achieved and corrosion protective properties were illustrated in various paint formulations and also in a paint formulation free of the inhibitive pigment. The corrosion protection efficiencies were enhanced by the improvement in the hydrophobicity of alkyd resin modified with perfluorinated toluene isocyanate (PFUTI). These results encourage us to minimize or neglect the most expensive inhibitive pigments from the economic point of view.
This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb007406. When citing the article, please…
Abstract
This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb007406. When citing the article, please cite: E.A.M Youssef, (1996), “Heat-resistant anticorrosive paints based on Egyptian manganese ore”, Anti-Corrosion Methods and Materials, Vol. 43 Iss: 6, pp. 17 - 21.
Kevin L. Papiorek and Martin R.W. Hiebl
Several conceptual works suggest that more digitalized information systems in management accounting have the potential to make this corporate function more effective. Against this…
Abstract
Purpose
Several conceptual works suggest that more digitalized information systems in management accounting have the potential to make this corporate function more effective. Against this backdrop, this study aims to investigate the impact of information systems quality in management accounting on the effectiveness of management control systems. Additionally, this study examines the moderating effect of process automation.
Design/methodology/approach
A cross-sectional survey of 125 German Mittelstand firms and hierarchical regression analyses were used for data collection and analysis.
Findings
The findings confirm the assumed positive effect of information systems quality in management accounting on management control effectiveness. They also confirm the assumed moderating effect of process automation. The authors find that the relationship between information systems quality in management accounting and management control effectiveness is more pronounced if the firm features a higher degree of process automation.
Originality/value
Several earlier case studies and a few quantitative studies indicated the potentially positive effect of high-quality information systems in management accounting on management control effectiveness. To the best of the authors‘ knowledge, this study is among the first to deliver quantitative proof of this relationship in the context of German Mittelstand firms. Moreover, the authors add to this literature the moderating effect of process automation in the relationship between information systems quality in management accounting and management control effectiveness.
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Chin-Tsu Chen, Shih-Chih Chen, Asif Khan, Ming K. Lim and Ming-Lang Tseng
This study aims to measure the integrated impact of big data analytics and artificial intelligence (BDA-AI) adoption by using the ChatGPT generative AI online platform as a BDA-AI…
Abstract
Purpose
This study aims to measure the integrated impact of big data analytics and artificial intelligence (BDA-AI) adoption by using the ChatGPT generative AI online platform as a BDA-AI tool on the operational and environmental performance.
Design/methodology/approach
This study considers Taiwanese professionals who engage with ChatGPT; the sample consists of 388 online users.
Findings
This study’s main finding is that the considered antecedents – including technological, organizational and environmental contexts, tangible resources and workforce skills – are significantly associated with BDA-AI adoption. Notably, BDA-AI adoption exhibits a significant relationship with operational performance, environmental performance and environmental process integration. Moreover, environmental process integration is significantly correlated with environmental performance. Lastly, operational performance is significantly correlated with environmental performance.
Originality/value
This study contributes to the heavily lacking but developing literature on the antecedents and consequences of BDA-AI adoption. Its theoretical foundation consists of the technological-organizational-environmental model, Roger’s diffusion of innovation theory and resource-based view theory.
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Due to its ability to support well-informed decision-making, business intelligence (BI) has grown in popularity among executives across a range of industries. However, given the…
Abstract
Purpose
Due to its ability to support well-informed decision-making, business intelligence (BI) has grown in popularity among executives across a range of industries. However, given the volume of data collected in health-care organizations, there is a lack of exploration concerning its implementation. Consequently, this research paper aims to investigate the key factors affecting the acceptance and use of BI in healthcare organizations.
Design/methodology/approach
Leveraging the theoretical lens of the “unified theory of acceptance and use of technology” (UTAUT), a study framework was proposed and integrated with three context-related factors, including “rational decision-making culture” (RDC), “perceived threat to professional autonomy” (PTA) and “medical–legal risk” (MLR). The variables in the study framework were categorized as follows: information systems (IS) perspective; organizational perspective; and user perspective. In Jordan, 434 healthcare professionals participated in a cross-sectional online survey that was used to collect data.
Findings
The findings of the “structural equation modeling” revealed that professionals’ behavioral intentions toward using BI systems were significantly affected by performance expectancy, social influence, facilitating conditions, MLR, RDC and PTA. Also, an insignificant effect of PTA on PE was found based on the results of statistical analysis. These variables explained 68% of the variance (R2) in the individuals’ intentions to use BI-based health-care systems.
Practical implications
To promote the acceptance and use of BI technology in health-care settings, developers, designers, service providers and decision-makers will find this study to have a number of practical implications. Additionally, it will support the development of effective strategies and BI-based health-care systems based on these study results, attracting the interest of many users.
Originality/value
To the best of the author’s knowledge, this is one of the first studies that integrates the UTAUT model with three contextual factors (RDC, PTA and MLR) in addition to examining the suggested framework in a developing nation (Jordan). This study is one of the few in which the users’ acceptance behavior of BI systems was investigated in a health-care setting. More specifically, to the best of the author’s knowledge, this is the first study that reveals the critical antecedents of individuals’ intention to accept BI for health-care purposes in the Jordanian context.