Tian Lei, Nan Gong, Li Wang, Qin Qin Li and Heng Wei Wang
Because of the logic delay in the converter, the minimum turn on time of the switch is influenced by the constant time. When the inductor current gets to the threshold of the…
Abstract
Purpose
Because of the logic delay in the converter, the minimum turn on time of the switch is influenced by the constant time. When the inductor current gets to the threshold of the chip, the control signal will delay for a period. This makes the inductor current rising with the increasing of the clock and leads to the load current out of control. Thus, this paper aims to design an oscillator with a variable frequency protection function.
Design/methodology/approach
This paper presents an oscillator with the reducing frequency applied in the DC-DC converter. When the converter works normally, the operating frequency of the oscillator is 1.5 MHz. So the inductor current has enough time to decay and prevent the power transistor damaging. After the abnormal condition, the converter returns to the normal operating mode automatically.
Findings
Based on 0.5 µm CMOS process, simulated by the HSPICE, the simulation results shows that the frequency of the oscillator linearly decreases from 1.5 MHz to 380 KHz when the feedback voltage less than 0.2 V. The maximum deviation of the oscillator frequency is only 6 per cent from −50°C to 125°C within the power supply voltage of 2.7-5.5 V.
Originality/value
When the light load occurs at the output stage, the oscillator frequency will decrease as the load voltage drops. The test results shows that when the circuit works in the normal condition, the oscillator frequency is 1.5 MHz. When the load decreased, the operating frequency is dropped dramatically.
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Studies of Tianhou-Mazu cult have been focused on three themes: studies in Taiwan emphasize hegemonic order; studies in Hong Kong reveal a relationship of “sisterhood” alliances;…
Abstract
Purpose
Studies of Tianhou-Mazu cult have been focused on three themes: studies in Taiwan emphasize hegemonic order; studies in Hong Kong reveal a relationship of “sisterhood” alliances; and studies in Singapore highlight the important role of ethnic groups. The rebuilding of the goddess’s ancestral temple in early 1980s and her acquiring a world intangible cultural heritage status in the early twenty-first century facilitate the redefinition of overseas Chinese’s religious affiliation. The purpose of this paper is to discuss this global development of the cult from the 1980s and its ritual implication in overseas Chinese communities.
Design/methodology/approach
This paper, by comparing the Tianhou-Mazu cult in Taiwan, Hong Kong and Southeast Asian Chinese settlements, argues that from sisters to descended replicas, or from local alliances to global hegemony, the cult of Tianhou-Mazu since the 1980s has not only replaced local culture with an emphasis on “high culture,” but also represents a religious strategy regarding local people’s interpretation of correctness and authority.
Findings
This paper argues that despite the imposition of hegemonic power from various authorities, popular religion is a matter of choice. This reflects how local religious practice is construed according to the interpretation of global cultural languages by the elite Chinese; their decision of when and how to reconnect with the goddess’s ancestral temple or the “imperial state,” or to form alliances with other local communities; and the implementation of the local government’s cultural policy.
Originality/value
This paper is one of the few attempts comparing development of a folk cult in various communities.
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Constantin Bratianu, Alexeis Garcia-Perez, Francesca Dal Mas and Denise Bedford
The purpose of this paper is to examine the impacts of rural–urban migration on agricultural (labor) productivity in China.
Abstract
Purpose
The purpose of this paper is to examine the impacts of rural–urban migration on agricultural (labor) productivity in China.
Design/methodology/approach
This paper closely follows the framework of Rozelle et al. (1999), Taylor et al. (2003) and Atamanov and Van den Berg (2012)—new economics of labor migration—to demonstrate the heterogeneous effects of migration on agricultural productivity, using simultaneous equations extended by an interaction term of off-farm income and household wealth.
Findings
The results empirically verify two key theoretical predictions: the loss of labor available for agricultural activities decreases rice yield per worker per day, and the off-farm income that may relax liquidity constraints has a positive offsetting effect, which becomes weaker with increasing household wealth. The final calculation based on these two contradictory influences indicates that the lost-labor effect dominates across all levels of household wealth, resulting in a negative net impact of rural–urban migration on agricultural productivity. The key results are shown to hold for land productivity as well.
Originality/value
To the best of the author’s knowledge, it is the first paper to examine the impacts of rural–urban migration on labor productivity and the heterogeneity across households with different levels of wealth. A major policy issue facing national leaders is whether the massive and ongoing outflow of labor will be a threat to China’s rural development and its food security in the future. This paper provides insightful ideas in a different way.
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The purpose of this paper is to describe how people in a coastal community act upon anxieties about overexploitation of a shared resource and their attempts to ease the moral…
Abstract
Purpose
The purpose of this paper is to describe how people in a coastal community act upon anxieties about overexploitation of a shared resource and their attempts to ease the moral tension caused by the rapid industrialization of their fishery. This anthropological study contributes to the cross-disciplinary discussion of community-based resource management.
Design/methodology/approach
The study is based on ethnographic fieldwork done at the Nanfang'ao port located in northeastern Taiwan. This port has several prosperous offshore fisheries including a mackerel fishery. The mackerel fishery has undergone important transformations in recent decades. The first was a total transformation of fishing methods in 2013. The second was the government's formulation of the “Regulations for Fishing Vessels Catching Mackerels and Jacks,” implemented in 2014. This research illustrates how people in a community take various approaches to pursue sustainability for the human beings and the more-than-human world.
Findings
In Nanfang'ao port, local people have developed a meaningful cultural festival through the integration of various symbols and rituals from different contexts in an effort to call attention to moral issues associated with the mackerel fishery.
Originality/value
This research contributes to the discussion on community resource management of marine fishery.
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Tsai-Chiao Wang, Ta-Wei Tang and Jen-Son Cheng
The development of artistic services is often unsuccessful because quality artistic services are characterized by offering new experiences to customers and pursuing excellence of…
Abstract
Purpose
The development of artistic services is often unsuccessful because quality artistic services are characterized by offering new experiences to customers and pursuing excellence of the performing services in the details. To successfully facilitate developing artistic services, this study builds an ambidextrous service innovation and service effectiveness (ASISE) model that describes the processes and steps of art-oriented services development.
Design/methodology/approach
A case study was conducted on Relais & Châteaux (R&C) hotel membership in Taiwan to better understand the steps and activities that describe service innovation processes. Triangulation was performed by compiling secondary data (e.g. official R&C notebooks and documents relating to Volando) and conducting field investigations and semi-structured interviews (with managers, employees, customers, artists).
Findings
This study combined the ambidexterity perspective with the Plan-Do-Check-Action (PDCA) principle and expanded the application range of the model from improving the service process to addressing the overall service innovation process, and included the gradual construction of the eight steps of scanning, linking, designing, performing, assessing, feedback, improving and adjusting.
Practical implications
Hotels can use the ASISE model developed by this study to simultaneously create new artistic service activities and enhance the effectiveness of current artistic services.
Originality value
Based on the ASISE model, which emphasizes an art-oriented and continuous cycle, this study thoroughly analyzed the obstacles of integrating art into hotel service processes, and successfully established a series of steps for developing art-oriented services.
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Outlines the characteristics of a just financial system and compares the Islamic one with others. Lists the financial instruments which enable Islamic systems to deal with the…
Abstract
Outlines the characteristics of a just financial system and compares the Islamic one with others. Lists the financial instruments which enable Islamic systems to deal with the prohibition of interest and some financial institutions. Notes the rapid increase of Islamic banks and financial institutions and believes that, if they can demonstrate their viability, the western world will become more likely to cooperate with them.
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Yaw A. Debrah and Ian G. Smith
Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on…
Abstract
Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on work and employment in contemporary organizations. Covers the human resource management implications of organizational responses to globalization. Examines the theoretical, methodological, empirical and comparative issues pertaining to competitiveness and the management of human resources, the impact of organisational strategies and international production on the workplace, the organization of labour markets, human resource development, cultural change in organisations, trade union responses, and trans‐national corporations. Cites many case studies showing how globalization has brought a lot of opportunities together with much change both to the employee and the employer. Considers the threats to existing cultures, structures and systems.
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Defines an Islamic bank, notes their rapid growth in the last twenty years and explains the financial instruments they use to conform with the prohibition on interest. Considers…
Abstract
Defines an Islamic bank, notes their rapid growth in the last twenty years and explains the financial instruments they use to conform with the prohibition on interest. Considers how they might enhance both urban and rural development in Islamic countries, and the feasibility of an Islamic futures market. Describes the operations of the Islami Bank Bangladesh Limited (the first in SE Asia) and assesses its domestic and international performance, providing many statistical appendices. Recognizes some outstanding problems (e.g. suitable training, legal framework etc.) but believes the bank has great potential for assisting development and shows that “banking without interest is feasible”,
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The purpose of this paper is to investigate factors that influence the free cash flow (FCF) motive for stock repurchases. Specifically, it examines whether the positive…
Abstract
Purpose
The purpose of this paper is to investigate factors that influence the free cash flow (FCF) motive for stock repurchases. Specifically, it examines whether the positive association between FCF and open-market repurchases is partially driven by abnormal cash flows, and whether external analyst monitor and financial crisis influence the association.
Design/methodology/approach
The study employs a tobit regression model to test the hypotheses.
Findings
First, the results suggest that the positive association between FCF and stock repurchases is partially driven by abnormal cash flows. Second, the association between pre-managed FCF and stock repurchases is strengthened as more analyst following the firms. Third, firms repurchase less when they report more negative abnormal cash flows, and that tendency is more pronounced during the 2008 financial crisis period. Further analysis shows that during the crisis period, the effect of negative abnormal cash flows on operating performance gets stronger.
Originality/value
The study makes several contributions to the literature. This paper is the first to show that managers use abnormal cash flows to fulfill the share buy-backs. In addition, it shows that analysts provide effective external monitoring by strengthening the association between pre-managed FCF and repurchases. Furthermore, it finds that firms adjust their strategy in times of financial crisis period in response to the increased risk. Finally, it contributes to the earnings management literature by showing the differential effects of accruals management and cash flow management on earnings performance.