Xiaoyan Li, Zhihui Zhang, Jiming Yao, MengQian Wang and Na Yang
To improve the problems as the heavy burden of sewage treatment and environmental pollution caused by the traditional sodium hydrosulfite reduction dyeing of indigo, this study…
Abstract
Purpose
To improve the problems as the heavy burden of sewage treatment and environmental pollution caused by the traditional sodium hydrosulfite reduction dyeing of indigo, this study aims to carry out the direct electrochemical reduction dyeing for indigo with the eco-friendly Cu(II)/sodium borohydride reduction system under normal temperature and pressure conditions.
Design/methodology/approach
The electrochemical behavior of Cu(II)/sodium borohydride reduction system was investigated by cyclic voltammetry. And, the dyeing performance of the Cu(II)/sodium borohydride reduction system was developed by optimizing the concentration of copper sulfate in the anode electrolyte, applied voltage and reduction time via single-factor and orthogonal integrated analysis.
Findings
The dyeing performance of the Cu(II)/sodium borohydride reduction system is superior to that of the traditional reduction dyeing with sodium hydrosulfite. In the case of the optimized condition, the soaping fastness and dry/wet rubbing fastness of the dyed fabric in the two reduction dyeing processes were basically comparable, the K/S value of electrocatalytic reduction of indigo by Cu(II)/NaBH4 is 11.81, which is higher than that obtained by traditional sodium hydrosulfite reduction dyeing of indigo.
Originality/value
The innovative electrocatalytic reduction system applied herein uses sodium borohydride as the hydrogen source combined with Cu(II) complex as the catalyst, which can serve as a medium for electron transfer and active the dye molecule to make it easier to be reduced. The electrochemical dyeing strategy presented here provides a new idea to improve the reduction dyeing performance of indigo by sodium borohydride.
Details
Keywords
This paper aims to construct a new turnover theory to explain and predict employee voluntary turnover in a more in-depth and comprehensive way.
Abstract
Purpose
This paper aims to construct a new turnover theory to explain and predict employee voluntary turnover in a more in-depth and comprehensive way.
Design/methodology/approach
Based on the literature review and theoretical analysis, this paper constructs a new turnover theory called the psychological goal system driving theory of employee turnover.
Findings
The psychological goal system driving theory of employee turnover advocates that there are psychological goals in the individual psychological world that point to the future and seek self-realization, and that there is a synergistic or competitive relationship among different psychological goals, and thus forming a psychological goal system and the dominant goals (including single goal or goal group) that exist in it; the individual’s dominant goals are the source of motivation, which initiate and organize the individual’s cognition and behavior; when the dominant psychological goals are difficult to achieve or destroyed in the original organization, they will produce continuous negative emotions and drive the individual to choose new and suitable job opportunities to realize themselves. Therefore, the dominant psychological goal is the organizer and driver of the employee turnover behavior, and when they are threatened, they will drive individuals to actively terminate the employment relationship with the current organization to better promote or protect their own realization process and sustainable growth.
Originality/value
This paper constructs a new turnover theory based on the self-organization goal system theory of motivation and personality.
Details
Keywords
Jan van Helden and Christoph Reichard
An examination of the commonalities and differences between performance management practices in the public and private sector.
Abstract
Purpose
An examination of the commonalities and differences between performance management practices in the public and private sector.
Methodology/approach
A literature review of 100 publications in international academic journals over the last 20 years.
Findings
The chapter develops a framework which links the dimensions of the public/private-distinction (ownership, funding, control and type of goals) to the design and use of performance management systems (PMS). This framework subsequently informs a literature review, which can be summarised as follows: Multi-dimensionality of the PMS is core in both public and private sector organisations, but quite many private sector papers point to a financial focus at the top of the PMS, while public sector organisations show a broad variety of performance indicators, including those on societally relevant goals. In addition, a link between the PMS and strategies can be found in the public and the private sector, but the match between different strategies and PMS design is more elaborated in the private sector. These findings are largely in accordance with our expectations. The review also finds support for the assumption that performance information in public sector organisations is primarily used for external accountability reasons, while internal managerial control is the main purpose in private firms. The use of performance information is quite intensive and mostly functional in both sectors, which does not meet our expectations. Overall, the differences between performance management practices in the public and private sector are less stringent than expected.
Research limitations
Due to limited evidence about the importance of performance-related pay systems and no evidence about targeting in both sectors, a more focused literature review on these issues would be desirable.
Practical implications
Mutual learning between both sectors, for example the public sector can learn from the private sector on how to link strategy to the PMS and the private sector can learn from the public sector about serving a multitude of stakeholders in the PMS.
Originality/value
A comprehensive review of performance management practices in the public and private sector.
Details
Keywords
Joan DeJaeghere and Shirley J. Miske
This chapter examines discourses and social practices at individual, community, and institutional levels related to non-majority Vietnamese ethnic girls’ access to and…
Abstract
This chapter examines discourses and social practices at individual, community, and institutional levels related to non-majority Vietnamese ethnic girls’ access to and participation in secondary school. This critical analysis utilizes Sen's framework of capabilities to illustrate differences in discourse and social practice that exist around poverty, and the ways in which gendered relations and ethnic traditions are intertwined with the discourse and practices of poverty to affect girls’ choices and well-being in and through secondary education. We particularly draw on girls’ and their parents’ constructions of these issues as they negotiate and are affected by them. We argue that strategies must move beyond the discourse that ethnic traditions and gendered relations are barriers to girls’ education to consider the inequalities and lack of capabilities that perpetuate poverty and unequal gendered relations for non-majority ethnic groups in societies.
Won-Hyuk Lee, Tae-Wook Na, Kyung-Woo Yi, Seung-Min Yang, Jang-Won Kang, Hyung Giun Kim and Hyung-Ki Park
When a pure titanium component is fabricated in a selective laser melting (SLM) process using titanium powder, the oxygen concentration of the SLM sample increases compared to the…
Abstract
Purpose
When a pure titanium component is fabricated in a selective laser melting (SLM) process using titanium powder, the oxygen concentration of the SLM sample increases compared to the initial powder. The purpose of this paper is to study the reason for increasing oxygen concentration after SLM.
Design/methodology/approach
To understand this phenomenon, the authors analyzed the oxidation behavior during the SLM process thermodynamically.
Findings
Based on the laser parameters used in this study, the temperature of the Ti melt during the SLM process was expected to rise to 2,150°C. Based on the thermodynamic analysis, the equilibrium oxygen partial pressure for oxidation was 2.32 × 10−19 atm at 2,150°C when the dissolved oxygen concentration in the titanium is 0.2 wt.%. However, the oxygen partial pressure inside the SLM chamber was 1 × 10−3 atm, which is much higher than the equilibrium oxygen partial pressure. Therefore, oxidation occurred during the SLM process, and the oxygen concentration of the SLM sample increased compared to the initial powder.
Originality/value
Most studies on fabricating Ti components using additive manufacturing (AM) have been focused on how the changes in the microstructures and mechanical properties depend on the process parameters. However, there are a few studies that analyzed the oxygen concentration change of Ti during the AM process and its causes. In this study, the authors analyzed the oxidation behavior during the SLM process thermodynamically.
Details
Keywords
Na Yang, Qin Liao, Qing Li, Peng Zhang and Longqin Li
– The purpose of this paper was to find a simple and easy-operated method for filtering eco-friendly corrosion inhibitors.
Abstract
Purpose
The purpose of this paper was to find a simple and easy-operated method for filtering eco-friendly corrosion inhibitors.
Design/methodology/approach
The molecular structures and atomic electronegativities of the four kinds of natural reagents, iota-Carrageenan, sodium alginate, sodium dodecanesulphonate (SDS) and sodium dodecylbenzene sulfonate were calculated by Gaussian and Natural Bond Orbital, and the corrosion inhibition rates were forecasted by the calculated results. Then, the realistic corrosion inhibition efficiency were confirmed by electrochemical impedance spectroscopy and potentiodynamic polarization tests in 3.5 Wt.% sodium chloride corrosive solutions. At the same time, the function of pefloxacin mesylate (PM) was explored in this paper polarization tests in 3.5 Wt.% sodium chloride corrosive solutions.
Findings
Results showed that the order calculated by the chemical software was correct, and the corrosion inhibition of SDS was the best. Optimum addition of PM not only can reduce microbial corrosion but also can improve the corrosion inhibition by spatial cooperation.
Practical implications
This method can be used to filter eco-friendly corrosion inhibitors quickly. PM can be also used to improve the corrosion inhibition rate of corrosion inhibitors.
Originality/value
The present method to filter corrosion inhibitors was time-consuming, which needed lots of experiments to verify the corrosion inhibitive efficiency. The calculated method was simpler than others, which need complicated calculation process.
Details
Keywords
Yi‐Long Jaw, Ru‐Yu Wang and Carol Ying‐Yu Hsu
Although the concept of branding has been considered extensively in products and services, branding in Chinese is a relatively emerging phenomenon. This paper aims to present the…
Abstract
Purpose
Although the concept of branding has been considered extensively in products and services, branding in Chinese is a relatively emerging phenomenon. This paper aims to present the enlivenment of branding in Chinese within the cross‐strait markets of Taiwan and Mainland China, which underlies various ideologies.
Design/methodology/approach
This study primarily reviews literatures of brand and brand name translation, defines the essentiality of brand naming, and outlines the branding strategies for entering cross‐strait markets. Furthermore, this study validates the using of substantially interpreted brands that support the authors' four developed propositions.
Findings
This study compares substantially interpreted brands in cross‐strait markets with a reference to commonly used translation methods. The results illustrate interesting ideologies among cross‐strait markets and can help managers achieve global brand recognition.
Research limitations/implications
Since China and Taiwan share the same Chinese culture, the qualitative method proposed by the present authors is more applicable to practitioners who are eager to pursue branding in cross‐strait markets. Thus, the relevant techniques may not be applicable to people less familiar with Chinese culture.
Practical implications
The qualitative case study provides an advisable method for branding in Chinese. The results of this study can provide greater understanding of the various ideologies in cross‐strait markets, as well as help managers achieve global brand recognition.
Originality/value
The various ideologies from branding is complex, especially for those involved with linguistic essentials. Previous research has mainly focused on managerial‐based branding and customer‐based branding. This paper extends the interest into enlivening inspirations.
Details
Keywords
Giacomo Negro, Balázs Kovács and Glenn R. Carroll
Using a novel measure incorporating stylistic and acoustic data on recorded music from 1967 to 2017, we search for trends in the evolution of musical diversity in 125,340 albums…
Abstract
Using a novel measure incorporating stylistic and acoustic data on recorded music from 1967 to 2017, we search for trends in the evolution of musical diversity in 125,340 albums. We find that temporal patterns of diversity differ for stylistic and acoustic data. We also find that the patterns differ dramatically by genre. Some genres, such as blues, jazz, and pop-rock, decrease in diversity over time; most other genres increase in diversity. The causes of these different trends present a puzzle for future research. We also find different patterns for recordings that made the Billboard 200 charts compared to all recordings, suggesting an association between selection processes driven by consumer popularity and diversity. Moreover, associations of diversity and industry structure found in prior research do not hold when we analyze data beyond the smaller sample of the more popular recordings found in Billboard. These findings have implications for many prior studies based exclusively on best-selling recordings
Details
Keywords
Gaurav Kumar Badhotiya, Gunjan Soni and M.L. Mittal
This paper aims to deal with integrated planning and scheduling problem in multi-site manufacturing environment and provides a comprehensive review of literature. Classification…
Abstract
Purpose
This paper aims to deal with integrated planning and scheduling problem in multi-site manufacturing environment and provides a comprehensive review of literature. Classification schemes and various aspects of planning and scheduling problem in multi-site manufacturing are highlighted.
Design/methodology/approach
A structured review methodology is adopted to classify the relevant literature. Taxonomy for classification of the problem is presented, followed by review of modelling approaches, solution strategies and challenges faced in multi-site integrated planning and scheduling problem.
Findings
The paper is concluded with interesting research findings and a short view on directions related to modelling approach, solution strategy and technique for further developments in the area of multi-site integrated planning and scheduling.
Research limitations/implications
The findings of this study would be helpful for future researchers and practitioners to provide a knowledge base and to further work in this area.
Originality/value
This study attempts to consolidate the diverse literature available and highlight the various aspects of planning and scheduling in multi-site manufacturing.
Details
Keywords
Mark M. Suazo and William H. Turnley
The purpose of this paper is to examine relations between five individual differences variables (positive affectivity, negative affectivity, reciprocation wariness, equity…
Abstract
Purpose
The purpose of this paper is to examine relations between five individual differences variables (positive affectivity, negative affectivity, reciprocation wariness, equity sensitivity, and Protestant work ethic) and the perception of psychological contract breach (PCB), and whether those relations are mediated by perceived organizational support (POS).
Design/methodology/approach
A survey was administered to 234 professional (i.e. white‐collar) employees in the USA. Regression analyses were conducted to test the proposed relations and mediating hypotheses.
Findings
In line with the hypothesized predictions, the findings indicate that POS fully mediated the relations between four out of the five individual difference variables examined (i.e. positive affectivity, reciprocation wariness, equity sensitivity, Protestant work ethic) and perceived PCB. In addition, POS partially mediated the relation between negative affectivity and perceived PCB.
Research limitations/implications
The use of a cross‐sectional, non‐experimental, design does not allow for conclusions to be drawn regarding causality and it is possible that the reported results may have been influenced by common method variance. Future research should examine additional individual differences and workplace contextual features.
Practical implications
Managers need to realize that some determinants of perceived PCB, and POS for that matter, are likely to be unrelated to organizational actions. Rather, perceived PCB and POS may result, in part, from an employee's individual characteristics.
Originality/value
This is the first study to provide empirical evidence that positive affectivity, negative affectivity, reciprocation wariness, equity sensitivity, and Protestant work ethic may predict the perception of PCB and that POS may mediate these relations.