H. Abd El‐Wahab, F. Abd El‐Hai, A.M. Naser, Z.I. El‐Bialy, M. Mostafa and L. Lin
Polymeric systems based on polyesteramides (PEA) are high performance materials, which combine the useful properties of polyester and polyamide resins, and find many applications…
Abstract
Purpose
Polymeric systems based on polyesteramides (PEA) are high performance materials, which combine the useful properties of polyester and polyamide resins, and find many applications, most importantly as protective surface coatings. The purpose of this paper is to characterise and evaluate new modified anti‐corrosive PEA resins for use in protective coating formulations.
Design/methodology/approach
In the study report here, new modified PEA compositions were prepared and evaluated as vehicles for surface coating. The PEA resins were obtained by means of a condensation polymerisation reaction between phthalic anhydride (PA) and N,N‐bis‐(2‐hydroxyethyl) linseed oil fatty acid amide (HELA) as the ingredient source of the polyol used. The phthalic anhydride was partially replaced with N‐phthaloylglutamic acid NPGA as the ingredient source of the dibasic acid. The structure of the resin was confirmed by FT‐IR spectral studies. Coatings of 50±5 μm thickness were applied to the surface of glass panels and mild steel strips by means of a brush. The coating performance of the resins was evaluated using international standard test methods and involved the measurement of phyisco‐mechanical properties and chemical resistance.
Findings
The tests carried out revealed that the modified PEA based on N‐phthaloylglutamic acid (NPGA) enhanced both phyisco‐mechanical and chemical properties. Also, the resins were incorporated within primer formulations and evaluated as anti‐corrosive single coatings. The results illustrate that the introduction of N‐phthaloylglutamic acid, within the resin structure, improved the film performance and enhances the corrosion resistance performance of PEA resins.
Practical implications
The modified PEA compounds can be used as binder in paint formulations to improve chemical, physical and corrosion resistance properties.
Originality/value
Modified PEA resins are cheaper and can be used to replace other more expensive binders. These modified PEA resins can compensate successfully for the presence of many the anticorrosive paint formulations and thus lower the costs. The main advantage of these binders is that they combine the properties of both polyester and polyamide resins based on nitrogenous compound, are of lower cost, and they also overcome the disadvantages of both its counterparts. Also, they can be applied in other industrial applications.
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Aarti P. More, Ravindra Abhimanyu Kute and Shashank T. Mhaske
The purpose of this paper is synthesis of polyesteramide resin from jatropha oil and monomer from recycling of poly(ethylene terephthalate) (PET) to get the excellent benefit of…
Abstract
Purpose
The purpose of this paper is synthesis of polyesteramide resin from jatropha oil and monomer from recycling of poly(ethylene terephthalate) (PET) to get the excellent benefit of individual structure. Along with the synthesis of polyesteramide resin, this research work will also help in recycling of PET waste and help for the conversion of monomer obtained from recycling of PET to value-added application.
Design/methodology/approach
Polyesteramide resin was synthesized by conventional method, i.e. by converting jatropha oil to corresponding fatty amide, i.e. hydroxyl ethyl jatropha oil fatty acid amide (HEJA), and treating it with dicarboxylic acid, i.e. sebacic acid but bis(2-hydroxyethyl) terepthalamide (BHETA) is added, i.e. monomer of PET, and then resin synthesis is carried out. Synthesized resin is cured with isocyanate and used for coating application. Coating is characterized for physical, mechanical, thermal and anticorrosive properties.
Findings
Coating shows excellent balance of flexibility and hardness due to structural difference in BHETA and HEJA. Aromatic structure of BHETA was helpful for increasing hardness and for retardation of degradation, and at the same time, aliphatic structure of HEJA was helpful for increasing flexibility of the coating. Amide linkage present in both help for better adhesion of coating to metal surface, which also helps to improve the mechanical properties and anticorrosive properties.
Practical implications
This method is the practical solution for synthesis of polyesteramide resin and then coating from PET waste and jatropha oil. Hence the method developed is simple and it helps for recycling of PET waste and conversion of recycled product to value-added material.
Originality/value
To the best of the authors’ knowledge, this is the first study which use jatropha oil (fatty amide of jatropha oil) and PET waste (monomer of PET waste) simultaneously for the synthesis of polyesteramide resin and then coating.
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Jaswant Kaur Bajwa, Sean Kidd, Sidonia Couto, Natasha Lidkea, Mulugeta Abai, Abby Jackman and Kwame McKenzie
This chapter provides information on the specific programming needs of victims of torture pursuing higher education, and policy and practice guidelines which will support them in…
Abstract
This chapter provides information on the specific programming needs of victims of torture pursuing higher education, and policy and practice guidelines which will support them in that pursuit. This is a community-based participatory action research project that brought together partners who had educational, research, practical, and real-life expertise in working with marginalized groups on this complex issue, with each partner playing an essential and a vital role in the research. A partnership between George Brown College, the Centre for Addiction and Mental Health, the Wellesley Institute, and the Canadian Centre for Victims of Torture established this community-based participatory action research project. The project established innovative outreach for people seeking to integrate into Canadian society through education following experiences of torture and war as a means to aid in the meaningful integration of survivors into Canadian society. This work is scalable to other settings (e.g., universities and colleges across Canada) and groups with experiences of marginalization (e.g., Aboriginals, visible minorities, etc.).
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Hamid Reza Goshayeshi and Mohammad Reza Safaei
Solar-driven water desalination technologies are rapidly developing with various links to other renewable sources. However, the efficiency of such systems severely depends on the…
Abstract
Purpose
Solar-driven water desalination technologies are rapidly developing with various links to other renewable sources. However, the efficiency of such systems severely depends on the design parameters. This paper presents results from an investigation on the effect of the glass cover inclination angle on the performance of two stepped solar still geometries (flat and convex) and the amount of produced distilled water.
Design Methodology Approach
Studied inclination angles of 25°, 27.5°, 30°, 32.5° and 35° were chosen, while other design parameters were fixed.
Findings
The investigation showed that the unit with the convex absorber plate had higher average water daily production rate, compared to the output of the flat absorber plate unit. The results also depicted that the inclination angle of the still has a noticeable effect on the performance of solar stills. The value of the critical angle is 32.5°, and the higher inclination angle results in less heat transfer coefficient. This value can be used for design purposes and erases the typical assumption to use lower angles to optimize the productivity of the still.
Practical Implications
Finally, obtained data were used to correlate the Nusselt number for the flat and convex surfaces with different inclination angles of the glass cover.
Originality Value
The outcome of this investigation may find applications to develop highly efficient solar stills to secure more drinkable water in warm, dry lands.
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Dalal Yousef Albudaiwi, Mike Allen, Ayman Alhabshi and Ahmad Alsaber
This study investigated the factors contributing to the reduction of plagiarism. It focuses on elucidating the concept of plagiarism, its legal and ethical implications, the…
Abstract
Purpose
This study investigated the factors contributing to the reduction of plagiarism. It focuses on elucidating the concept of plagiarism, its legal and ethical implications, the punitive measures implemented to address plagiarism and the level of awareness of plagiarism policies.
Design/methodology/approach
An online survey was administered to 649 students (160 male, 489 female) of the College of Social Sciences at Kuwait University (KU) to investigate the relationships between a number of factors linked to plagiarism, including its definition, legal and ethical implications, understanding of plagiarism regulations and the consequences associated with plagiarism.
Findings
The aforementioned factors and underlying causes that contribute to engaging in plagiarism were substantially correlated. Regression analysis revealed that variables such as legal and ethical considerations, familiarity with plagiarism regulations and the existence of sanctions were statistically significant predictors of the factors contributing to the occurrence of plagiarism.
Practical implications
The findings can help the Kuwait University administration and similar universities in the region focus on increasing students’ awareness of plagiarism and can aid in developing better policies that include the definition of plagiarism and penalties for undertaking this academic misconduct.
Originality/value
This study shows universities the importance of increasing students’ awareness of academic misconduct and can help create appropriate and robust policies.
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Contemporary copyright infringement has significantly changed in the digital era, and because of the unique attributes of internet piracy and method of exchange, traditional…
Abstract
Purpose
Contemporary copyright infringement has significantly changed in the digital era, and because of the unique attributes of internet piracy and method of exchange, traditional regulatory approaches are ineffective. The characteristics of digital goods enable users to almost costlessly copy and exchange content. Much of the contemporary research fails to incorporate the necessary components of exchange that are central to digital piracy. This paper aims to examine the role of peer-to-peer network hosts and the often-omitted cyberlocker.
Design/methodology/approach
A simple framework is constructed that describes how these entities how these entities facilitate digital piracy and operate financially. This framework illustrates the objectives of piracy mediators, highlighting the avenues by which regulation can craft policy. Additional examination of online piracy highlights the challenges of contemporary policy to combat digital piracy due to the secondary consequences.
Findings
Recent policies, aimed at diminishing piracy, would infringe on consumers’ privacy, hurt business finances or strategically used by rivals to hurt the operations of legal entities. Trying to prevent illegal sources (or facilitators) of pirate goods from providing access to files continues to be challenging. In many instances, the blurry line between a legal platform for file exchange and a piracy haven creates significant regulatory problems. For known piracy promoters (host sites or cyberlockers), location and revenue streams continue to limit direct intervention.
Originality/value
This paper discusses the necessary path for piracy to occur by including previously omitted agents necessary for communication and/or distribution. My analysis incorporates these entities that facilitate piracy and the unique features of digital exchange, which has industrial and regulatory implications. Furthermore, my results highlight why regulators have been ineffective in crafting meaningful anti-piracy policy.
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The purpose of this paper is to examine the transatlantic trade and investment partnership (TTIP). The EU and the USA are negotiating the TTIP, a trade agreement that aims to…
Abstract
Purpose
The purpose of this paper is to examine the transatlantic trade and investment partnership (TTIP). The EU and the USA are negotiating the TTIP, a trade agreement that aims to remove trade barriers across different economic sectors to increase trade between the EU and the USA. The TTIP will have spill over effects on the MENA region, the GCC, Australia and the Asian sub-continent, as it raises key questions for intellectual property and international trade agreements. For instance, will the USA and EU be on an equal footing or will one triumph over the other, will third party countries like the GCC states be expected to adopt new standards.
Design/methodology/approach
The research design is a paper and online data collection method to find literature to date on intellectual property law development in the GCC states in relation to the three research objectives as set out above. The literature is the population, and this could prove problematic. Different databases have been used to cover all sources where data can be found.
Findings
As the EU-USA TTIP is aiming to conclude by the end of 2015, the GCC has an opportunity to reassess its relationship with both the EU and GCC. Up until now, the GCC was able to enter into negotiations with the EU and USA relatively independently. However, where the EU and USA can agree, there will be a harmonisation of regulations. This therefore has repercussions for the GCC. The TTIP has three main aims: to increase trade and investment through market access, increase employment and competitiveness and create a harmonised approach to global trade. To harmonise global trade, the EU and USA aim to harmonise their intellectual property rights through an intellectual property rights chapter that deals specifically with enhancing protection and recognition for geographical indications, build on TRIPS and patentability.
Research limitations/implications
This study is non-empirical.
Originality/value
The TTIP will have spill over effects for the GCC, as it has yet to finalise the EU-GCC free trade agreement and USA-GCC framework agreement. The power dynamics between the USA and EU will be a deciding factor on the intellectual property chapter in the TTIP in terms of what the provisions for intellectual property will look like and what powers will be available to investors to bring investor-state-dispute settlement claims against foreign countries.
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Ahmed Mohamed, Abdelhalim Mustafa, M.S.A. Elgaby, H. Abd El-Wahab, Said Ahmed Abed and A. Kazlauciunas
This paper aims to prepare a new modified poly(ester amide) (PEA) resins and use it as a binder for anticorrosive and antimicrobial coatings.
Abstract
Purpose
This paper aims to prepare a new modified poly(ester amide) (PEA) resins and use it as a binder for anticorrosive and antimicrobial coatings.
Design/methodology/approach
New modified PEA compositions were prepared based on 4-amino-N, N-bis(2-hydroxyethyl) benzamide (AHEB) as the ingredient source of the polyol used and evaluated as vehicles for surface coating. The structure of the modifier and PEA resin was confirmed by FT-IR, H¹-NMR, MW, thermogravimetric analysis and scanning electron microscope studies. Coatings of 50±5 µm thickness were applied to the surface of glass panels and mild steel strips by means of a brush. The coating performance of the resins was evaluated using international standard test methods and involved the measurement of phyisco-mechanical properties and chemical resistance.
Findings
The tests carried out revealed that the modified PEA based on AHEB enhanced both phyisco-mechanical and chemical properties. Also, the resins were incorporated within primer formulations and evaluated as anti-corrosive and antimicrobial single coatings. The results illustrate that the introduction of AHEB, within the resin structure, improved the film performance and enhances the corrosion resistance and antimicrobial activity performance of PEA resins.
Practical implications
The modified PEA compounds can be used as binders in paint formulations to improve the chemical, physical, corrosion resistance and antimicrobial activity properties.
Originality/value
Modified PEA resins are cheaper and can be used to replace other more expensive binders. These modified PEA resins can compensate successfully for the presence of many the anticorrosive and antimicrobial paint formulations, and thus, lower the costs. The main advantage of these binders is that they combine the properties of both polyester and polyamide resins based on nitrogenous compound, are of lower cost and they also overcome the disadvantages of both its counterparts. Also, they can be applied in other industrial applications.
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Ömer Akbal, Hakan F. Öztop and Nidal H. Abu-Hamdeh
The purpose of this paper is to make a three-dimensional computational analysis of melting in corrugated pipe inserted system filled with phase change material (PCM). The system…
Abstract
Purpose
The purpose of this paper is to make a three-dimensional computational analysis of melting in corrugated pipe inserted system filled with phase change material (PCM). The system was heated from the inner pipe, and temperature of the outer pipe was lower than that of inner pipe. Different geometrical ratio cases and two different temperature differences were tested for their effect on melting time.
Design/methodology/approach
A computational analysis through a pipe with corrugated pipe filled with PCM is analyzed. Finite volume method was applied with the SIMPLE algorithm method to solve the governing equations.
Findings
The results indicate that the geometrical parameters can be used to control the melting time inside the heat exchanger which, in turn, affect the energy efficiency. The fastest melting time is seen in Case 4 at the same temperature difference which is the major observation of the current work.
Originality/value
Originality of this work is to perform a three-dimensional analysis of melting of PCM in a corrugated pipe inserted pipe.