Search results

The evaluations of the magnetohydrodynamics angular rate sensor (MHD ARS) in its applications necessitate further improvements in the sensor’s dynamic measurement ability. The magnetic field of the MHD ARS is a key factor in the sensor’s modeling and error analysis. The aim of this study is to illustrate the influence of a non-uniform magnetic field on the sensor.

Numerical simulation is made using ANSYS FLUNET with the magnetic field calculated by 3D-Magnetostatic. The comparison of the simulation results between uniform and non-uniform magnetic fields is made to reveal and explain the effects of magnetic field inhomogeneity (MFI) on the flow and electric field in detail. Two different structures with different MFIs are designed to confirm the MFI effect on the sensor’s output in simulation and experiment. A cross-correlation experiment and an adaptive filter are carried out to extract the signal to identify the error of the sensor output caused by MFI.

The MFI effect on the flow field in MHD ARS is found to be insignificant, while its effect on the electric potential is considerable. The comparisons between two kinds of MHD ARS in numerical simulation and experiment show that the MFI effect on the sensor error can be identified by fitting the sensor output. The deviation is mainly generated at the peaks and valleys of an angular vibration.

The study of the MHD ARS under the influence of a non-uniform magnetic field can offer an understanding of the MFI effect on the sensor and an evaluation method of the sensor error caused by the MFI effect.

Magnetohydrodynamics angular regular sensor (MHD ARS) has been used in many applications for its low noise in wide bandwidth, impact resistance and low power consumption; however, it is unable to estimate the angular velocity at low frequencies such as below 1 Hz. It is difficult to design compensation methods without an exact model. The aim of this study is to investigate a more exact analytical model characterization of the sensor’s frequency response, especially at a low-frequency zone.

A correction coefficient of electromagnetic force in simplified MHD ARS model was introduced according to the theoretical analysis of MHD flow and it was obtained by numerical simulation of electromagnetic force varying with time, space structure and frequency.

To make comparison, the transfer function of the designed MHD ARS in the experiment was identified using Gauss–Newton method with reasonable weights. The identification results confirmed the analytical model. Furthermore, a digital filter was designed based on the analytical model, and the compensation results showed that the frequency limit at low-frequency side was extended from 1 to 0.01 Hz.

The modified analytical model can describe the MHD ARS’s frequency response exactly and may be applied in its low-frequency compensation.

The purpose of this paper is to demonstrate that the sustainable development thought is one good reason why Chinese civilization is continuously developing, and it can be used as a reference for the development of Chinese agriculture today.

The paper employs a historical analysis approach to examine the sustainable thoughts concerning Chinese traditional agriculture, including view of sancai, farming season, fertility, the nature of matters, recycling, and economization.

The results reveal that the nature of Chinese traditional agriculture is akin to ecological agriculture, which is precious heritage for China and the whole world.

The originality of this paper is that it confirms the fundamental reason of the continuous development of Chinese civilization which, based on organization of sustainable development thought, lies in traditional agriculture.

This empirical study aims to test the impact of four types of entrepreneurial context on the growth and success rates of new ventures in China and related the findings to the theory and practice of entrepreneurship dating back 2,500 years to ancient China.

After describing the business guidelines given by Fan Li, an entrepreneurial merchant selling Chinese medicines in ancient times, a conceptual framework was extracted as the basis for a discussion of the relationship between entrepreneurial context and entrepreneurial activity. Entrepreneurial context was conceptualized as being composed of family, social, business and institutional components. Five hypotheses about the influence of these different context variables on entrepreneurial activities were developed. From data compiled from the sampling of 239 business entrepreneurs in Beijing, a hierarchical regression was formed and the hypotheses tested.

The impact of entrepreneurial context on entrepreneurial activity can be divided into two layers, internal factors (e.g. family context) which are similar to “yin” (?) in the traditional Chinese philosophy while external factors (e.g. business, social and institutional contexts) were like “yang” (?). The two factors play different roles in entrepreneurial activities, while different contexts mediate and moderate each other in complex ways.

Research limitations pertain to the size and locale of the sample. A larger sample that involved subjects from different regions would facilitate a wider understanding of the effects of entrepreneurial context upon the entrepreneurial process.

The theory of entrepreneurial context is in its beginning stages, and the paper completed a systematic study of entrepreneurial context through theoretical model building using large-sample empirical research. In addition, the paper is the first ever to relate the theory and practice of entrepreneurship back 2,500 years. Through a multi-research methodology, the study clearly shows the critical importance of integrating Chinese history into the development of management theory.

The purpose of this paper is to discuss nationalistic education in Hong Kong from a cultural perspective. It highlights the challenges faced by the Hong Kong Government and the growing antagonism and mistrust between the young generation and the government. The paper reviews the cultural policies adopted by the Western Zhou, Han and Tang dynasties in ancient China.

This paper adopts a historical approach by reviewing the policies in music and culture in the Chinese history and argues for the adoption of a soft approach to nationalistic education in Hong Kong.

Results show that being inclusive toward diverse cultures, trusting and valuing people’s voices and accepting differences of opinion are effective policies that were adopted by the respective dynasties. The results shed light on the possibility of nurturing nationalism through education in music and culture.

The historical examples mentioned in this paper are only selected periods of the Chinese history. Thus, the survey could not be taken as a comprehensive review.

This paper reviews the policies concerning music and culture in ancient China and argues for transferring the soft approach of predecessors toward these subjects as part of the nationalistic education of Hong Kong.

The results shown should be considered seriously by the Hong Kong Government as an effective substitute policy for the past stringent approach of implementing national education in Hong Kong. Nationalistic education focusing on music and culture is a common root for all Chinese and should be used in future to build up trust and common values between China and Hong Kong.

The originality of this research lies in its dealing with nationalism and national education, recommending a soft approach to education viewed through the prisms of music and culture.

The purpose of this paper is to present the state-of-the-art E-commerce logistics in supply chain management by investigating worldwide implementations and corresponding models together with supporting techniques via furniture industry.

Typical E-commerce logistics companies from North America, Europe, and Asia Pacific are comprehensively investigated so as to get the lessons and insights from these practices.

Future technologies like Internet of Things, Big Data Analytics, and Cloud Computing would be possibly adopted to enhance the E-commerce logistics in terms of system level, operational level, and decision-making level that may be real time and intelligent in the next decade.

This paper takes the furniture industry for example to illustrate the E-commerce logistics and supply chain management (LSCM). Other industries like electronic appliance industry are not considered.

Opportunities and future perspectives are summarized from practical implementations so that interested parties like E-commerce and logistics companies are able to get some guidance when they are contemplating the business.

E-commerce is booming with the development of new business models and will be continuously boosted in the near future. With large number of enterprises carrying out E-commerce, logistics has been largely influenced.

Insights and lessons from this paper are significant for academia and practitioners for considering E-commerce LSCM.

This study aims to investigate the spillover–crossover effects on the work–family interface, with an emphasis on work–family conflict (WFC) and family–work conflict (FWC) on marital satisfaction and personal burnout.

Data were collected from matched dyads by 300 teachers and their spouses (N = 600) in Indonesia. Multiple regression analysis served to test the hypotheses.

The results showed significant spillover–crossover effects of WFC on personal burnout amongst working wives to their spouses, but not working husbands to their spouses. Moreover, there was a spillover effect of FWC on personal burnout amongst working wives, and a crossover effect of FWC on spouses' personal burnout amongst working husbands to their spouses. However, there was no spillover–crossover effect of WFC and FWC on marital satisfaction for both working wives and husbands.

The findings have implications for occupational stress management. Decision-makers have to create a positive atmosphere that reduces WFC in the workplace by providing support to the workers.

This study contributes to the literature by exploring the crossover effects of WFC and FWC amongst marital spouses in a country with inherent conservatism and traditional gender role perspectives.

Drawing from the conservation of resource theory and the job demands-resources model, this study examines the bi-directional conflicts of work and family during COVID-19, and investigates the online teaching work-related antecedents and the mechanism shaping emotional exhaustion of teachers in Taiwan. Moreover, this study explores mindfulness in teaching as a possible moderator.

Data for analysis were collected from elementary school teachers via an online survey using a questionnaire comprising well-developed scales. The hypotheses were validated using structural equation modeling.

Results show that only family interfering with work conflict mediates the positive relationship of online teaching job demand with emotional exhaustion and negative relationship of online teaching job resource with emotional exhaustion. Results also evidence that mindfulness practiced by teachers can help them perceive their own feelings and thoughts non-judgmentally in face of job demands.

With the growing work-from-home trend, the current study revisits the impact of work demands and resources on work-family conflict, and examines whether Taiwanese teachers' perception towards online teaching would lead to different observations. The path that JD→WIF conflict→EE is well established in the literature, while COVID-19 brings to light another path JD→FIW conflict→EE, revealing insight into teachers' cognition and plight during the pandemic.

This paper aims to explore how upstream supply chain companies will control the carbon emissions and price decisions of products when the government implements environmental tax policy on consumers. It provides some suggestions to control carbon emissions for the government and manufacturers.

This study establishes two-echelon Stackelberg game models with and without the implementation of environmental tax policy on consumers in a centralized scenario and a decentralized scenario. Through the comparative analysis of the four models, the optimal emission abatement and pricing strategies are obtained.

This paper concludes that implementing environmental tax policy on consumers within the market’s acceptable range is more beneficial to the retailer and the environment, as well as the overall social welfare, except for the manufacturer. Moreover, consumer’s low-carbon preference always has a broader impact on carbon abatement and corporate profits than environmental tax coefficient. Finally, the side-payment self-executing contract can effectively ensure that the supply chain members make rational decisions spontaneously while achieving a win-win solution of centralized scenario.

This paper first considers how the government’s environmental tax policy on consumers will affect the decision-making of supply chain companies, and proposes an improved side-payment self-enforcing contract to maximize environmental and economic benefits of centralized scenario. In addition, it provides a reference for the government to adopt both the carbon cap policy and the environmental tax policy.

This paper investigates to find whether it is possible to align the interests of a small and medium manufacturing enterprise (SMME) with its raw material supplier in a manufacturing supply chain (MSC) to achieve a sustainable solution. To this end, current study examines the coordination of an MSC under cap and trade consisting of a raw material supplier and a carbon-emitting SMME confronting a stochastic demand.

The model is developed under both the decentralized and centralized decision-making scenarios. Under the investigated model, the SMME decides on both production quantity and sustainability level simultaneously. To achieve coordination and align the interests of both MSC members toward sustainable economic development goals, a customized revenue-sharing contract is developed.

Although the centralized model is profitable for the MSC, it makes a loss for the SMME compared to the decentralized scenario. The revenue-sharing agreement is able to create coordination among the MSC members and optimize profitability and sustainability. The established revenue-sharing guarantees a Pareto-improving situation for both members. Applying the established contract not only reduces shortage occasions but also results in more sustainability levels, which in turn means movement toward attaining sustainable economic development goals.

Unlike previous studies, carbon emission is assumed as a nonlinear decreasing function of the sustainability level which is a more realistic case. In accordance with SMMEs business environments, the market demand is also assumed uncertain. In addition, instead of assuming an investment cost for sustainability, the authors assumed unit production/purchasing costs as functions of product sustainability level.