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The purpose of this paper is fourfold: first, to provide the first systematic study on the ethics of blockchain, mapping its main socio-technical challenges in technology and applications; second, to identify ethical issues of blockchain; third, to propose a conceptual framework of blockchain ethics study; fourth, to discuss ethical issues for stakeholders.

The paper employs literature research, research agenda and framework development.

Ethics of blockchain and its applications is essential for technology adoption. There is a void of research on blockchain ethics. The authors propose a first theoretical framework of blockchain ethics. Research agenda is proposed for future search. Finally, the authors recommend measures for stakeholders to facilitate the ethical adequacy of blockchain implementations and future Information Systems (IS) research directions. This research raises timely awareness and stimulates further debate on the ethics of blockchain in the IS community.

First, this work provides timely systematic research on blockchain ethics. Second, the authors propose the first research framework of blockchain ethics. Third, the authors identify key research questions of blockchain ethics. Fourth, this study contributes to the understanding of blockchain technology and its societal impacts.

The purpose of this paper is to explore the research status and development trend of the field of event detection in social media (ED in SM) through a bibliometric analysis of academic publications.

First, publication distributions are analyzed including the trends of publications and citations, subject distribution, predominant journals, affiliations, authors, etc. Second, an indicator of collaboration degree is used to measure scientific connective relations from different perspectives. A network analysis method is then applied to reveal scientific collaboration relations. Furthermore, based on keyword co-occurrence analysis, major research themes and their evolutions throughout time span are discovered. Finally, a network analysis method is applied to visualize the analysis results.

The area of ED in SM has received increasing attention and interest in academia with Computer Science and Engineering as two major research subjects. The USA and China contribute the most to the area development. Affiliations and authors tend to collaborate more with those within the same country. Among the 14 identified research themes, newly emerged themes such as Pharmacovigilance event detection are discovered.

This study is the first to comprehensively illustrate the research status of ED in SM by conducting a bibliometric analysis. Up-to-date findings are reported, which can help relevant researchers understand the research trend, seek scientific collaborators and optimize research topic choices.

The purpose of this paper is to investigate the statistical correlation properties of the Shanghai Interbank Offered Rate (SHIBOR) interbank lending market.

The authors apply methods of correlation analysis, random matrix theory (RMT) and minimum spanning tree (MST) to investigate the correlation properties of Chinese interbank lending market and analyze how the SHIBOR panel banks behave in different market periods.

First, the largest eigenvalue λ ₁ is the index to describe the market mode of the whole market when all banks behavior collectively and λ ₁/N is a good estimator of the average correlation <C> of the correlation matrix. Second, notably, the authors find the “market mode” is weakened in two crises periods of 2008 stock market crash and 2009 Global Financial Crisis. This is significantly different from other market where the “market mode” is normally strengthened in crises periods. Third, the authors subtract the contribution of λ ₁, the second and third eigenvalue, λ ₂ and λ ₃, will fall outside of the predicted interval. And both λ ₂ and λ ₃ are getting times larger in the crises periods than in “Non-Crisis” period. Fourth, and in the MST analysis, the authors find again that the average distances of the MST are the times larger in crises periods than in “Non-Crisis” period and the second largest eigenvalue is a good estimator of the average distance of the MST.

According to the best knowledge, this paper is the first work on the study of the statistical properties of an interbank lending market using quotation level data of panel banks, which allows us to analyze the properties of the interest rate formation and how all panel banks behavior in different periods. This work is also the first study on the SHIBOR market using econophysics methods of correlation analysis, RMT and MST.

Excellence in education through the provision of a high standard of education services is the philosophy of educational institutions in Singapore. Quality control in the education service forms an important evaluation process in tertiary institutions. The exercise of quality control in education service has even been extended to the incorporation of quality control concepts in the curriculum. Students in the institutions of higher learning are encouraged to form quality control circles to acquire the various techniques to practise problem solving and monitoring of quality of work. Highlights some quality control measures practised in the Ngee Ann Polytechnic of Singapore in ensuring that the highest standards are met in the provision of educational services which train high‐quality graduates for the supervisory and middle‐management workforce.

The aim of this paper is to investigate inhibition of copper corrosion by 3,5‐bis(2‐thienyl)‐4‐amino‐1,2,4‐triazole (2‐TAT) in 1 M HCl and 0.5 M H₂SO₄.

Potentiodynamic polarization curves and electrochemical impedance measurements were carried out on copper in 1 M HCl and 0.5 M H₂SO₄ containing various concentrations of 2‐TAT, and the effects of temperature were also investigated.

As an efficient inhibitor, 2‐TAT behaves better in 1 M HCl than in 0.5 M H₂SO₄. 2‐TAT can be classified as cathodic‐type corrosion inhibitor in 1 M HCl and acts as relatively mixed type in 0.5 M H₂SO₄. Activation energies in the presence and absence of 2‐TAT were obtained by measuring the temperature independence of corrosion current. Adsorption of the inhibitor on the copper surface was found to obey the Langmuir adsorption isotherm.

This inhibitor could have application in industries where hydrochloric acid solutions are used to remove scale and salts from copper surfaces and may render dismantling unnecessary.

The results from this paper showed that 2‐TAT could be considered as a suitable inhibitor for copper in acidic media.

Drawing on studies in flood-affected upland areas of Thailand and Vietnam, this chapter explores the complex interplay between collective, state and individual responses to disastrous flood events and subsequent mitigation strategies. Fieldwork was conducted between 2007 and 2009, employing a variety of qualitative methods, such as semi-structured interviews in flood-affected households, focus group discussions and narrative essays written by local people. Evidence suggests that farmers’ willingness to engage in flood mitigation is curbed by the common perception that flooding is caused by a bundle of exogenous factors. In the case study from Vietnam, state intervention in formerly community-based water management has alienated farmers from water governance and reduced their sense of personal and collective responsibility. Their lack of engagement in flood-prevention strategies could also be explained by the fact that their major cash crop was not affected by the flood event. In the Thai case study, where community-based water management remained largely unaffected by state influence, villagers agreed in a collective decision-making process to widening the riverbed after a severe flood, although this meant that some farmers had to give up parts of their paddy fields. Yet, following a second flood, these farmers opened up new upland rice fields in the forested upper watershed areas to ensure their food security, thus increasing the likelihood of future flood disasters downstream. We conclude that flood mitigation and adaptation policies need to consider (1) local people’s own causal explanations of flood events and (2) the potential trade-offs between collective action, state intervention and individual livelihood strategies.

The purpose of this paper is to propose a novel method of coaxial optical precision alignment based on surface roughness and reflectiveness matching.

The micro-assembly experiment system set-up was constructed according to the principle of the coaxial optical alignment. The coaxial optical alignment error is theoretically analyzed and calculated. When the prism orthogonal alignment mechanism produces the error of 0.001°, the theoretical deviation was less than 0.87 μm and the actual experimental micro-assembly platform assembly accuracy exceeded 3 μm. A peg-in-hole precise assembly of punching pin micro-assembly experiment was done in order to validate feasibility of this method.

The results indicate that coaxial optical precision alignment could be used for the assembly of complex micro-heterogeneous system which is integrated by similar devices, such as 3D complex micro-structures, silicon micro-electro-mechanical system (MEMS) devices and non-silicon MEMS devices with flat structure.

The paper provides certain methodological guidelines for MEMS for high precision automatic assembly of complex 3D micro-structures.

The purpose of this paper is to optimize the downrange for hypersonic boost‐glide (HBG) missile under near‐real condition, and to validate the suitability of proposed wall cooling materials.

The trajectory optimization problem is characterized by a boost phase followed by a glide phase. A multi‐phase trajectory optimization tool is adopted to optimize the downrange. The associated optimal control problem has been solved by selecting a direct shooting method. The dynamics has been transcribed to a set of nonlinear constraints and the arising nonlinear programming problem has been solved through a sequential quadratic programming solver. An aerothermodynamics analysis method is introduced to calculate the aerodynamic heating at nose, leading edge, and ventral centerline regions.

HBG missile is suitable for long‐range attack, and the optimal trajectory solved is a novel boost‐glide‐skip trajectory, i.e. boost firstly, glide secondly, and skip at last. The proposed wall materials are valid.

This paper provides further study on the methods of trajectory design and aerothermodynamics analysis for HBG missile.

Co-creating services with the customer has recently appeared as an alternative strategy to achieve competitive advantage. Developing and sustaining a gainful experience requires sharing of knowledge, skills and resources between the firm and its customers. Managing value co-creation throws substantial challenge and difficulties. This study aims to investigate the barriers to customer resource contribution in value co-creation in service industries and find their interrelationships for developing an effective management framework for removal of those barriers.

A systematic literature review led to the identification of 26 barriers, which were further confirmed through expert opinion. The study used interpretative structural modeling (ISM) approach and Matrice d’Impacts croises-multipication applique (MICMAC), for analyzing the contextual relationships and develop a hierarchical model of the barriers.

ISM approach led to the development of a 13-level structural model. The barriers were further classified into autonomous, driver, linkage and dependent barriers using the MICMAC analysis. The framework offers a means to fulfill the expectations of the customers, thus leading to successful integration of the customer in the value creation process. Removal of the barriers has also been discussed.

The framework provides a direction and a tool to meet the expectations of the customers and lead to successful integration of the customer.

The study addresses a gap in the literature for the need of a structured framework for managing the value co-creation process in the service industry

This study aims to identify and categorize the barriers and motivators to value co-creation and to establish its theoretical link with the five axioms of value co-creation.

The study used a qualitative approach based on a bibliographic literature review for identifying barriers and motivators of value co-creation. Subsequently, this study grouped those barriers and motivators into three categories. It further linked those barriers and motivators with five axioms of value co-creation using the grounded theory.

Results based on the categorization of barriers show that the first category “organization and system-related barriers” is associated with Axioms 1, 2 and 5 of the service-dominant logic. The second category “customer-oriented barriers” is associated with Axioms 2, 4 and 5. The third category of barriers “social environmental and economic barriers” is related to only Axiom 3. Results based on the motivators show that the first category “organization and system-related motivators” is associated with Axioms 2 and 4. The second category of “customer-oriented motivators” is associated with Axioms 1, 2, 3 and 5. The third category of motivators “social environmental and economic motivators” is related to Axioms 3 and 5.

These results provide insights to managers for eradicating barriers from the value co-creation process by emphasizing strategic intrusion into those axioms that contain a high percentage of barriers. Similarly, it also provides insights to managers for expediting motivators of value co-creation by strategic intrusion based on the axioms that contain a high percentage of motivators. Overall, this study will serve for greater value co-creation by eradicating barriers and promoting motivators. This study also provides a theoretical foundation for future studies intended to establish a theoretical connection between the barriers and motivators with value co-creation in other industries.

This study is novel in terms of identifying barriers and motivators of value creation by categorizing those identified barriers and motivators into three sub-categories. This study is the first one for linking barriers and motivators with five axioms of value creation for a micro-level policy formulation.