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Article
Publication date: 2 January 2009

Hardo May, Jan Hoffmann, Wolf‐Ruediger Canders and Ryszard Palka

The purpose of this paper is to focus on superconducting magnetic bearings (SMB). SMB for high‐speed rotors are contact free and offer inherently stable operations thus they are…

Abstract

Purpose

The purpose of this paper is to focus on superconducting magnetic bearings (SMB). SMB for high‐speed rotors are contact free and offer inherently stable operations thus they are best qualified for the support of horizontally aligned rotors of turbo machines for gas‐compressors and expanders, e.g. special attentions have to be concentrated on the force activation of the SMB without dislocating the rotor from the aligned position.

Design/methodology/approach

For the activation of cylindrically shaped SMB‐designs, appropriate units with movable superconductor parts have been developed. They permit the maintenance of the rotor together with the field excitation unit in the aligned un‐displaced position. The eddy currents in the conducting cylinder of an EDD are induced by spatial fluctuations of the field and thus have been determined by transient calculations. The mechanical oscillation of the rotor was considered by a step‐wise displacement of the damper‐plate.

Findings

As the rotors of both the machine and the SMB operate best with reduced clearance to the stators, the shaft cannot be displaced to activate the force of horizontally aligned superconducting bearing assemblies. Thus, for cylindrical, co‐axial SMB‐designs the stator is shaped as two half shells embracing the SMB‐rotor. For the force activation the following procedure has to be carried out within the Dewar without displacing the shaft: at first the half shells are retreated from the rotor (warm HTSC) and after the cooling they are moved against the inner part of the warm bore thus generating the forces to compensate the weight and disturbances of the rotor. In case of planar‐cylindrical SMB‐designs, which are specially suited for extreme high speed applications, the bearing stators consist of a planar cylinder plate of HTSC‐bulks. The force activation is realised by lifting and descending the Dewar with the HTSC parts as a whole independently from the position of the rotor. The radial forces of the EDD and their partitioning in components which contribute to the damping‐ and to the spring‐force have been determined for different frequencies up to 160 Hz. To achieve accuracies in the percent range, the values of the time steps have to be well adapted to the electro dynamic conditions as oscillation frequency and conductivity.

Originality/value

Only the presented activation devices with movable HTSC stator parts enable the application of SMB even for horizontally aligned high‐speed rotors with reduced radial clearance. The recently developed fully integrated EDD secure a safe run of the rotor even during the speed up – passing the eigenfrequency in particular.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 28 no. 1
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 11 February 2021

Hardo Firmana Given Grace Manik, Nurul Indarti and Andy Susilo Lukito-Budi

This study aims to examine the moderating effect of firm age and size on the relationship between network characteristics (network centrality, network density and tie strength…

Abstract

Purpose

This study aims to examine the moderating effect of firm age and size on the relationship between network characteristics (network centrality, network density and tie strength) and firm performance. This study also aims to investigate the difference in the effect of network characteristics on the firm performance of Javanese and Minang ethnic enterprises.

Design/methodology/approach

An explanatory research design was adopted, which involved a survey in the form of a structured questionnaire of target owners and managers of 34 Javanese ethnic enterprises in North Sumatra, Indonesia and 100 Minang ethnic enterprises in Yogyakarta, Central Java, Jakarta and Bogor, Indonesia. The data is analysed using structural equation modelling.

Findings

The findings of this study confirm resource dependency and social capital theory. Network centrality, network density and tie strength have a significant effect on firm performance. The results also show support for the moderating role of firm age on the relationship between network characteristics and firm performance. The moderating role of firm size is not supported. The comparative test of the influence of the three network characteristics on ethnic enterprise performance confirms that Javanese ethnic enterprises have identity-based networks, while Minang ethnic enterprises use calculative-based networks.

Originality/value

The originality of this study lies in the investigation of the role of family and external partners in the running of ethnic enterprises at start-up and during the growth phase. The definition of “family” is based on a kinship perspective due to the specificity of Asian cultures, particularly in Indonesia. Of the hundreds of tribes in Indonesia, the Javanese and Minang were chosen because both are well-known as entrepreneurial tribes, have unique cultural values and have active migrants to other provinces.

Details

Journal of Enterprising Communities: People and Places in the Global Economy, vol. 17 no. 1
Type: Research Article
ISSN: 1750-6204

Keywords

Article
Publication date: 15 March 2022

Andy Susilo Lukito-Budi, Hardo Firmana Given Grace Manik and Nurul Indarti

This paper offers innovative strategies on how small- and medium-sized enterprises (SMEs) can respond to the COVID-19 crisis by incorporating an entrepreneurial orientation…

Abstract

Purpose

This paper offers innovative strategies on how small- and medium-sized enterprises (SMEs) can respond to the COVID-19 crisis by incorporating an entrepreneurial orientation concept corresponding to the nature of the environmental shock.

Design/methodology/approach

This paper conceptualises a solution by elaborating three critical items, namely entrepreneurial orientation, adaptive process and strategy types as key factors to develop the framework solution. This paper outlines a strategy proposal for SMEs to respond to the crisis.

Findings

The environmental factor represents the crisis, which leads to a degree of innovation, i.e., radical and incremental, and can be approached using an adjusted adaptive consolidation process from Child. This paper identifies four strategy options from Miles and Snow to respond to the crisis; i.e. (1) defender–exploitative innovation; (2) analyser–organisational ambidexterity; (3) prospector–exploratory innovation and (4) reactor–abandon or shut down the business.

Originality/value

While most of the suggestions from previous COVID-19-related works are acknowledged, this paper brings more insight from an academic perspective, specifically organisational theory, to cope with the pandemic crisis. The steps and strategy to be chosen can guide policymakers to decide what is their best move to respond to this crisis. In addition, the proposed strategies call for future research to provide empirical evidence by exploring and examining various scenarios in different kinds of businesses.

Details

Journal of Strategy and Management, vol. 16 no. 1
Type: Research Article
ISSN: 1755-425X

Keywords

Article
Publication date: 11 February 2021

Delly Nofiani, Nurul Indarti, Andy Susilo Lukito-Budi and Hardo Firmana Given Grace Manik

This study aims to provide empirical findings of the extent to which the ambidexterity found in innovation and social networks will mediate the relationship between…

1152

Abstract

Purpose

This study aims to provide empirical findings of the extent to which the ambidexterity found in innovation and social networks will mediate the relationship between entrepreneurial orientation (EO) and firm performance (FP). This study also compares the ambidextrous strategy between the balanced dimension (BD) and combined dimension (CD) and examines their contribution to the small- and medium-sized enterprises (SMEs’) performance.

Design/methodology/approach

The current study used an explanatory research design by surveying a total of 205 fashion firms’ owners/managers in Yogyakarta, Indonesia, using a semi-structured questionnaire. Path analysis with mediating tests and independent t-tests were used.

Findings

The results revealed that innovation and social network ambidexterity mediate the relationship between EO and the SMEs’ performance. One ambidextrous strategy, the BD strategy, is superior to the CD one. The study makes an interesting discovery: the CD strategy apparently dominates FP when EO does not exist.

Practical implications

The study suggests that no ambidextrous strategy (i.e. BD and CD) used by the SMEs can fit all situations. In detail, the study provides four different strategies for SMEs to build organizational ambidexterity, namely, innovate and sustain; elevate; expand; and collaborate and survive. It is also suggested that the SMEs consider two main principles when dealing with an ambidextrous strategy, “anything that is too much is not always good” and “one size does not fit all.” By doing so, the SMEs are expected to be able to use internal and external resources and choose the most appropriate ambidextrous strategy to respond to the relevant situation (e.g. the changes of consumer behavior due to the COVID-19 pandemic).

Originality/value

Using a dynamic capability approach by integrating two perspectives, i.e. the internal (resource-based theory) and external (resource-dependency theory) perspectives, makes the study relevant and valuable to better understand the role and type of ambidexterity among SMEs as a mediating factor between EO and FP. This paper breaks new ground by confirming a paradoxical phenomenon concerning organizational ambidextrous practices within SMEs. Additionally, four strategies for ambidextrous were developed to respond to the anomaly.

Details

Journal of Entrepreneurship in Emerging Economies, vol. 13 no. 5
Type: Research Article
ISSN: 2053-4604

Keywords

Article
Publication date: 4 January 2022

Muhammad Hamdi, Nurul Indarti, Hardo Firmana Given Grace Manik and Andy Susilo Lukito-Budi

This study aims to examine the effect of entrepreneurial intention and attitude towards knowledge sharing on new business creation by comparing two generations, Y generation…

1066

Abstract

Purpose

This study aims to examine the effect of entrepreneurial intention and attitude towards knowledge sharing on new business creation by comparing two generations, Y generation (millennials) and Z generation (post-millennial). In addition, the current study uses a social cognitive theory as a point of departure to test the research hypotheses.

Design/methodology/approach

This study deploys a quantitative approach (hypothetic-deductive approach) by surveying 300 respondents representing the two Indonesian generations. The questionnaire consisting of demographic items (age, education, etc.) and variables was the primary research instrument. This study used regression analysis, a Wald test for examining the proposed hypotheses and a t-test to provide a deeper analysis of the findings.

Findings

Findings from the current study show that Gen Y is still seeking a balance for their learning sources by involving in their social environments as well as exploring the digital world. In contrast, Gen Z is much more dominant in the independence to learn things that interest them. They have less dependency on social patrons but prioritise themselves as the leading model.

Practical implications

The findings of this study provide practical implications for higher education institutions in the development of entrepreneurship education to achieve learning effectiveness.

Originality/value

This study aims to contribute by providing empirical evidence in the effect of entrepreneurial orientation and attitude towards knowledge sharing on new venture creation with particular reference to Gen Y and Gen Z, suggested by previous studies. Although Gen Y and Gen Z are digital natives, this study provides insight into a shift in the characteristic of two generations, as also found in comparison to previous generations, such as Baby-Boomer vs Gen X and Gen X vs Gen Y. This study proclaims the need to adjust organisational theories to enable them to explain the shifting phenomena at the micro and macro level for every generation. Exploratory research to better understand the characteristics of a generation in other settings is a crucial proposal proposed by this study.

Details

Journal of Entrepreneurship in Emerging Economies, vol. 15 no. 4
Type: Research Article
ISSN: 2053-4604

Keywords

Article
Publication date: 23 June 2023

Grisna Anggadwita, Nurul Indarti, Paresha Sinha and Hardo Firmana Given Grace Manik

Small and medium enterprises (SMEs) in emerging economies face significant challenges in formulating effective strategies to enter international markets, particularly amid…

Abstract

Purpose

Small and medium enterprises (SMEs) in emerging economies face significant challenges in formulating effective strategies to enter international markets, particularly amid uncertain conditions such as the COVID-19 pandemic. Consequently, there is a pressing need to examine the performance of these SMEs and evaluate their internationalization process. This study aims to examine the effects of international entrepreneurial orientation on the internationalization performance of SMEs and the mediating effects of organizational dynamic capability and organizational culture in Indonesia.

Design/methodology/approach

This study used a quantitative method with a survey approach by distributing questionnaires to 206 SMEs in Indonesia that have implemented internationalization practices. Partial least squares-structural equation modeling (PLS-SEM) was used to predict and estimate relationships.

Findings

This study finds that one of the SMEs’ strategies to encounter the new normal era of COVID-19 is to improve their internationalization performance, especially by actively participating in international markets. The empirical results show that organizational dynamic capabilities and organizational culture are proven to fully mediate the relationship between international entrepreneurial orientation and the internationalization performance of SMEs. Meanwhile, international entrepreneurial orientation does not directly affect SMEs’ internationalization performance. This study confirms the mediating role of organizational dynamic capabilities and organizational culture in dynamic capabilities theory and their relevance to internationalization.

Originality/value

This study provides valuable insights and encourages owner-managers and policy-makers in emerging economies, particularly Indonesia, to develop organizational dynamic capabilities and organizational culture that align with the demands of internationalization.

Details

Review of International Business and Strategy, vol. 33 no. 5
Type: Research Article
ISSN: 2059-6014

Keywords

Article
Publication date: 14 March 2022

Hardo Firmana Given Grace Manik, Rossalina Christanti and Wahyu Setiawan

This study aims to examine the dynamics of traditional wayang kulit or shadow puppet knowledge management in a community-based enterprise (CBE) known as “Wisata Wayang” in…

Abstract

Purpose

This study aims to examine the dynamics of traditional wayang kulit or shadow puppet knowledge management in a community-based enterprise (CBE) known as “Wisata Wayang” in Wukirsari Village, Yogyakarta, Indonesia.

Design/methodology/approach

A qualitative case study was adopted, which allows the author to explore the dynamics or uniqueness of an event or cultural phenomenon more deeply.

Findings

The shadow puppet is an artefact of Javanese culture with rich life philosophy and wisdom. It guides people the pursuit of harmony with themselves, others, the universe and God. The success of knowledge management of the shadow puppet at CBE was supported by the high entrepreneurial orientation of the administrators. This study showed that entrepreneurial orientation should be extended into sociopreneurial with additional aspects, including preservation mission and communality, promoting the emergence of grassroots innovations. The knowledge of shadow puppet craft in this village is passed through nyantrik, also known as apprenticeship.

Originality/value

No previous research has explored the dynamics of traditional knowledge management in the context of CBE in Indonesia. As Indonesia has rich traditional knowledge from hundreds of tribes and prominent communal cultures, this study of community-based knowledge management contributes new insights in the knowledge management literature.

Details

VINE Journal of Information and Knowledge Management Systems, vol. 54 no. 3
Type: Research Article
ISSN: 2059-5891

Keywords

Book part
Publication date: 8 July 2021

Alex Grech

This collection of essays has its roots in a collective desire to understand the workings of the post-truth society, and how education, media and technology may contribute to…

Abstract

This collection of essays has its roots in a collective desire to understand the workings of the post-truth society, and how education, media and technology may contribute to mitigating its worst excesses. This chapter introduces the origins of the book project.

Details

Media, Technology and Education in a Post-Truth Society
Type: Book
ISBN: 978-1-80043-907-8

Keywords

Article
Publication date: 1 April 1998

Carlo Zaccagnini

Considered from an international and comparative perspective Italian anti‐money laundering legislation appears rigorous and comprehensive. It includes general norms and…

Abstract

Considered from an international and comparative perspective Italian anti‐money laundering legislation appears rigorous and comprehensive. It includes general norms and aggravating circumstances for conspiracy to engage in organised and economic crime; rules which oblige the financial sector to identify and report currency transactions in excess of 20 million lire (approximately £6,600; and hereinafter called ‘large currency transactions’); provisions punishing money laundering as a crime; norms which sanction the failure to report suspicious transactions by financial intermediaries; provisions prohibiting ‘tipping‐off’ and rules which provide for the confiscation and freezing of the proceeds of crime, which shift the burden of proof in cases where the accused fails to demonstrate the origin of the suspicious assets. The legislative structure provides, likewise, norms on ‘sting operations’, establishing an express immunity clause for ‘undercover agents’. Lastly, the legislation further defines the parameters of international judicial assistance.

Details

Journal of Money Laundering Control, vol. 2 no. 2
Type: Research Article
ISSN: 1368-5201

Article
Publication date: 5 December 2016

Nnamdi Madichie and Okechukwu A. Madichie

The purpose of this paper is to highlight the challenges of property development and management in northern Nigeria drawing upon the experiences of Bauchi, Gombe and Kaduna states.

Abstract

Purpose

The purpose of this paper is to highlight the challenges of property development and management in northern Nigeria drawing upon the experiences of Bauchi, Gombe and Kaduna states.

Design/methodology/approach

Based on a longitudinal evaluation of these trends and challenges, this study draws upon a literature review and practitioner insights on property investment efforts in northern Nigeria. It also benefits from insider accounts related to the author’s 20-years’ experience of work both in both Nigeria and the UK.

Findings

The study highlights the salient factors that have brought about the housing challenges in northern Nigeria. Arguably poor property development and management initiatives have had direct correlations with the weak property management practices in these states and thereby further restricted investments in the real-estate sector in northern Nigeria.

Research limitations/implications

The limitations of the study are based on those attributable to personal observation and ethnographic studies as adopted in this case. This impacts upon the generalisability of the findings, however, sound the propositions may be. Areas for future research inquiry are also proffered.

Originality/value

The study is a critical reflection of developments in property management taken from the purview of the Nigerian real-estate market. While primarily a viewpoint paper, it does highlight some of the key challenges facing property management in a manner not previously discussed in the literature.

Details

African Journal of Economic and Management Studies, vol. 7 no. 4
Type: Research Article
ISSN: 2040-0705

Keywords

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