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Article
Publication date: 1 January 1996

G. Latha and S. Rajeswari

Evaluates the effect of sodium diethyldithiocarbamate on the corrosion behaviour of copper and brass in sea water by way of experimental methods based on immersion studies and…

41

Abstract

Evaluates the effect of sodium diethyldithiocarbamate on the corrosion behaviour of copper and brass in sea water by way of experimental methods based on immersion studies and polarization measurements. Presents and discusses the results.

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Anti-Corrosion Methods and Materials, vol. 43 no. 1
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 May 1996

G. Latha and S. Rajeswari

Corrosion control in cooling systems where seawater forms the coolant is primarily effected with inhibitor additions. Deals with the evaluation of non‐ionic surfactants as…

56

Abstract

Corrosion control in cooling systems where seawater forms the coolant is primarily effected with inhibitor additions. Deals with the evaluation of non‐ionic surfactants as corrosion inhibitors in seawater, on conventionally used type 316L SS. Potentiodynamic anodic cyclic polarization studies were carried out to evaluate the performance of non‐ionic surfactants. Emphasizes the role of these compounds as effective inhibitors focusing on the chemical behaviour and nature of chemisorption, influencing the inhibiting properties.

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Anti-Corrosion Methods and Materials, vol. 43 no. 5
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 11 October 2021

Dayong Zhang, Xiaohui Liu, Xuefeng Bai, Gang Wang, Liping Rong, Ying Zhao, Xin Li, Jinhua Zhu and Changhong Mi

The purpose of this study is to investigate the heat resistance and heat-resistant oxygen aging of 4-nitrophthalonitrile-etherified cardanol-phenol-formaldehyde (PPCF) to further…

184

Abstract

Purpose

The purpose of this study is to investigate the heat resistance and heat-resistant oxygen aging of 4-nitrophthalonitrile-etherified cardanol-phenol-formaldehyde (PPCF) to further use and develop the resin as the matrix resin of high-temperature resistant adhesives and coatings.

Design/methodology/approach

PPCF resin was synthesized by 4-nitrophthalonitrile and cardanol-phenol-formaldehyde (PCF). The structures of PPCF and PCF were investigated by Fourier transform infrared, differential scanning calorimetry and proton nuclear magnetic resonance. In addition, the heat resistance and processability of PPCF and PCF resins were studied by dynamic mechanical analysis, thermogravimetric analysis, scanning electronic microscopy (SEM), X-ray diffraction (XRD) techniques and rheological studies.

Findings

The results reveal that PPCF forms a cross-linked network at a lower temperature. PPCF resin has excellent resistance under thermal aging in an air atmosphere and that it still had a certain residual weight after aging at 500°C for 2 h, whereas the PCF resin is completely decomposed.

Originality/value

4-Nitrophthalonitrile was introduced into PCF resin, and XRD and SEM were used to investigate the high temperature residual carbon rate and heat-resistant oxygen aging properties of PPCF and PCF resins.

Details

Pigment & Resin Technology, vol. 51 no. 6
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 8 December 2022

Timothy Adu Gyamfi, Clinton Ohis Aigbavboa and Wellington Didibhuku Thwala

Construction organisations cannot underestimate the improvement in public–private partnership (PPP) projects’ implementation. At the same time, construction organisations cannot…

615

Abstract

Purpose

Construction organisations cannot underestimate the improvement in public–private partnership (PPP) projects’ implementation. At the same time, construction organisations cannot overlook the risk arising from engaging in PPP construction projects. Hence, this study aims to establish the influence of risk resource management (RRM) in managing PPP risk in the construction industry in Ghana.

Design/methodology/approach

The researchers adopted qualitative and quantitative research methods to achieve the aim of the study, in which Delphi questions and a close-ended questionnaire were developed. A total of 650 construction specialists, including procurement officers, consultants, project managers, quantity surveyors, site engineers and planning officers were chosen using random and purposive sampling techniques. Recovered data were analysed using descriptive statistics and confirmatory factor analysis (CFA). The CFA maximum likelihood estimation extractor compresses 19 variables into 3 pattern matrices.

Findings

The results of the study revealed three factors that measure RRM in Ghana’s PPP construction industry, including financial resource management which was influenced by communicating the budget to project team members and project partners understanding the budget, and material resource management which was influenced by the provision of materials transportation and provision of delivery programs and labour resource management which was impacted by a commitment to pay social security and taxes and provision of good salaries, to address RRM in PPP construction organisations.

Research limitations/implications

To incessantly improve the PPP risk management (RM) in construction through RRM, there should be a strong liaison between the universities, government agencies and the construction industry, and such collaboration will assist the industry to obtain first-hand information regarding the study findings and how they can be implemented to help the development of RM in the construction industry. This study is limited to Ghana and CFA and further study should explore structural equation model to determine the structure and measurement model of the risk resource variables.

Originality/value

The study may be valuable to industry stakeholders looking for new approaches to improve RM in their construction activities, particularly in PPP projects. Also, to assist reduce PPP risk, construction companies should use RRM in their organisations.

Details

Journal of Engineering, Design and Technology , vol. 22 no. 5
Type: Research Article
ISSN: 1726-0531

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Article
Publication date: 29 July 2021

Waranpong Boonsiritomachai and Ploy Sud-On

Past research has convincingly shown that the more entrepreneurial employees are, the more likely they are to leave the organization and start their own enterprise. Therefore, the…

891

Abstract

Purpose

Past research has convincingly shown that the more entrepreneurial employees are, the more likely they are to leave the organization and start their own enterprise. Therefore, the purpose of this paper is to understand how entrepreneurial employees can be retained in organizations by examining the relationships between work engagement, organizational commitment and entrepreneurial attitude among entry-level employees.

Design/methodology/approach

Covariance-based structural equation modeling is used to test the hypothesized relationships by using a survey of 416 employees.

Findings

The results of the study indicate that an entrepreneurial attitude significantly and positively contributes to work engagement, although it can divert employee attention regarding the level of commitment. Interestingly, the study findings show that employees will commit to an organization if they have engaged with the company, even if they have a highly entrepreneurial attitude.

Practical implications

This study’s findings are beneficial in understanding the concept of an entrepreneurial attitude and its impact on an organization. For firms to concurrently promote entrepreneurial characteristics and employee commitment, policy and staff practices must ensure the appropriate level of work engagement.

Originality/value

This study proposes new distal antecedent and consequence constructs of the engagement theory related to entrepreneurial attitude orientation and establishes the important link between these constructs with work engagement. The findings originally point to the role of work engagement in maintaining entrepreneurial employees and its effect on organizational commitment.

Details

Asia-Pacific Journal of Business Administration, vol. 14 no. 1
Type: Research Article
ISSN: 1757-4323

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Article
Publication date: 7 November 2016

Paulo Renato de Souza, Jean Vicente Ferrari and Isabel Correia Guedes

Surfactants have been reported to have high inhibition efficiencies for corrosion of steel. This paper aims to study the performance of a low toxic copolymer of…

323

Abstract

Purpose

Surfactants have been reported to have high inhibition efficiencies for corrosion of steel. This paper aims to study the performance of a low toxic copolymer of polydimethylsiloxane and polyoxyalkylene (POA) surfactant named as POPS, as a corrosion inhibitor for mild steel (ASTM 1005) in hydrochloric acid (HCl) solution at 25°C.

Design/methodology/approach

To evaluate POPS efficiency as a corrosion inhibitor, the following techniques were used: surface tension measurements, weight loss measurements, open circuit potential monitoring, potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS), scanning electron microscopy and contact angle measurements.

Findings

Results indicated that POPS acted as a mixed corrosion inhibitor and led to a hydrophobic protector film on the metal surface. The adsorption process obeyed the Langmuir adsorption isotherm by chemisorption. The maximum efficiency of the surfactant studied was achieved in a concentration around the critical micelle concentration.

Originality/value

Surfactant (POPS) of low level of toxicity acts as a mixed corrosion inhibitor in HCl medium. Inhibitor film formation was characterized by EIS results. A mechanism for corrosion inhibition is proposed.

Details

Anti-Corrosion Methods and Materials, vol. 63 no. 6
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 8 July 2024

Shambhu Sajith, R S Aswani, Mohammad Younus Bhatt and Anil Kumar

The purpose of this study is to identify Offshore Wind Energy (OWE) as a key technology that could drive countries toward achieving climate goals. However, there are multiple…

72

Abstract

Purpose

The purpose of this study is to identify Offshore Wind Energy (OWE) as a key technology that could drive countries toward achieving climate goals. However, there are multiple challenges that this sector faces.

Design/methodology/approach

This study aims to identify the challenges faced by the sector globally by systematically reviewing the existing literature in global context and portraying it in the Indian context. Factors are identified using content analysis.

Findings

Results suggest high levelized cost of energy as the most discussed challenge for the growth of OWE. Insufficient financial support and policy, initial capital and inadequate technology formed the second, third and fourth most discussed challenges respectively.

Research limitations/implications

To reduce the cost of OWE, the distribution companies in India could adopt feed-in tariffs (FiTs) in the early stages of development and make OWE procurement mandatory. The renewable purchase obligation (RPO) in India is specific to solar and non-solar; policy should accommodate offshore wind-specific RPO targets for each state to reach the 2030 target of 30 GW from OWE.

Practical implications

To the best of the authors’ knowledge, this is the first attempt to study the challenges of OWE development from a global perspective and portray these major challenges in the Indian context and uses content analysis from the existing literature to ascertain the major roadblocks for the development of OWE.

Originality/value

The study identifies the unexplored gap in literature that includes futuristic challenges for OWE from climate change. Future studies can explore the possibilities of forecasting based on climate change scenarios and rank the challenges based on their relevance caused by possible damages.

Details

International Journal of Energy Sector Management, vol. 19 no. 1
Type: Research Article
ISSN: 1750-6220

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Article
Publication date: 1 July 2005

Majid Haji‐Sapar and Siew Eang Lee

To establish national energy performance benchmarks and an energy efficiency classification system for commercial office buildings from whole building to sub‐systems level for…

3478

Abstract

Purpose

To establish national energy performance benchmarks and an energy efficiency classification system for commercial office buildings from whole building to sub‐systems level for building professionals including facility managers.

Design/methodology/approach

Issuing of survey form and questionnaires to 16 building owners before field interview. Building physical data and systems nameplate, quantities and types were verified on site. The past 24 months electricity consumption bills were also collected from building owners. Physical environmental conditions and short‐term power measurement on building systems were done to determine the level of energy consumption and performance.

Research limitations/implications

The classification and benchmarking methodology developed is useful for the regions to establish their own database and tools.

Practical implications

The building energy performance assessment and auditing methodology are useful to both building owner/manager and energy services companies (ESCOs) in carrying out systematic assessment and analysis on building energy characteristics. The benchmark system established will also serve as a reference to building professionals to adopt a more holistic approach in designing an energy efficient building. Useful also for building owners who are considering carrying out retrofitting works on their existing building or systems.

Originality/value

The study provides detailed whole building and systems benchmarks for Singapore. The results provide an objective evaluation system of commercial office building energy performance.

Details

Facilities, vol. 23 no. 9/10
Type: Research Article
ISSN: 0263-2772

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Article
Publication date: 10 May 2019

Meriem Smaiah, Mebarek Djebabra and Leila Boubaker

The purpose of this paper is to propose a new managerial method to integrate the environmental dimension in the domino effects (DEs) analysis.

125

Abstract

Purpose

The purpose of this paper is to propose a new managerial method to integrate the environmental dimension in the domino effects (DEs) analysis.

Design/methodology/approach

The proposed method is a three-step approach: identification of primary hazards in the form of potential events causing the DE, a mixed quantification (deterministic and probabilistic) of the risk of the DEs with a view to its control and capitalizing the results from the BLEVESOFT software as well as those relating to the probability of occurrence of the DEs in the form of a prioritized action plan dedicated to surrounding environments (proximity territory).

Findings

The primary hazards are technologically manageable at the studied system but are unpredictable if triggered at the environmental subsystem because they are difficult to be managed and often cause panic, which is a form of a very catastrophic DE.

Research limitations/implications

The research could affect members of the engineering and construction industry, and can be applied in several domains since it studies the DE phenomenon. which is a common problem especially in industrials plants.

Practical implications

The proposal method is applied in an industrial terminal in Algeria.

Originality/value

This paper presents an exploratory study of using a new managerial method that aims to combine the potentialities of geomatic sciences that allow the spatial representation of nearby territories to assess the severity of DEs through a deterministic approach, and the modeling of DEs as well as their analysis by a probabilistic approach.

Details

Management of Environmental Quality: An International Journal, vol. 30 no. 5
Type: Research Article
ISSN: 1477-7835

Keywords

Available. Open Access. Open Access
Article
Publication date: 1 March 2024

Priyajit Mondal, Dhritishree Ghosh, Madhupa Seth and Subhra Kanti Mukhopadhyay

The purpose of this article is to provide information about interactions between pink-pigmented facultative methylotroph (PPFM) organisms and plants, their molecular mechanisms of…

1116

Abstract

Purpose

The purpose of this article is to provide information about interactions between pink-pigmented facultative methylotroph (PPFM) organisms and plants, their molecular mechanisms of methylotrophic metabolism, application of PPFMs in agriculture, biotechnology and bioremediation and also to explore lacuna in PPFMs research and direction for future research.

Design/methodology/approach

Research findings on PPFM organisms as potent plant growth promoting organisms are discussed in the light of reports published by various workers. Unexplored field of PPFM research are detected and their application as a new group of biofertilizer that also help host plants to overcome draught stress in poorly irrigated crop field is suggested.

Findings

PPFMs are used as plant growth promoters for improved crop yield, seed germination capacity, resistance against pathogens and tolerance against drought stress. Anti-oxidant and UV resistant properties of PPFM pigments protect the host plants from strong sunshine. PPFMs have excellent draught ameliorating capacity.

Originality/value

To meet the ever increasing world population, more and more barren, less irrigated land has to be utilized for agriculture and horticulture purpose and use of PPFM group of organisms due to their draught ameliorating properties in addition to their plant growth promoting characters will be extremely useful. PPFMs are also promising candidates for the production of various industrially and medicinally important enzymes and other value-added products. Wider application of this ecofriendly group of bacteria will reduce crop production cost thus improving economy of the farmers and will be a greener alternative of hazardous chemical fertilizers and fungicides.

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Details

Arab Gulf Journal of Scientific Research, vol. 42 no. 4
Type: Research Article
ISSN: 1985-9899

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