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Article

Alagappan K M, Vijayaraghavan S, Jenarthanan M P and Giridharan R

The purpose of this paper is to identify the ideal process parameters to be set for the drilling of hybrid fibre-reinforced polymer (FRP) (kenaf and banana) composite…

Abstract

Purpose

The purpose of this paper is to identify the ideal process parameters to be set for the drilling of hybrid fibre-reinforced polymer (FRP) (kenaf and banana) composite using High-Speed Steel drill bits (5, 10, 15 mm) coated with tungsten carbide by means of statistical reproduction of the delamination factor and machining force using Taguchi–Grey Relational Analysis.

Design/methodology/approach

The contemplated process parameters are Feed, Speed and Drill Diameter. The trials were carried out by taking advantage of the L-27 factorial design by Taguchi. Three factors, the three level Taguchi Orthogonal Array design in Grey Relational Analysis was used to carry out the trial study. Video Measuring System was used to identify the damage around the drill region. “Minitab 18” was used to examine the data collected by taking advantage of the various statistical and graphical tools available. Examination of variance is used to legitimize the model in identifying the most notable parameter.

Findings

The optimised set of input parameters were found out successfully which are as follows: Feed Rate: 450 mm/min, Cutting Speed: 3,000 rpm and Drill Diameter of 5 mm. When these values are fed in as input the optimised output is being obtained. From ANOVA analysis, it is apparent that the Speed (contribution of 92.6%) is the most influencing parameter on the delamination factor and machining force of the FRP material.

Originality/value

Optimization of process parameters on drilling of natural fibres reinforced in epoxy resin matrices using Taguchi–Grey Relational Analysis has not been previously explored.

Details

Multidiscipline Modeling in Materials and Structures, vol. 16 no. 5
Type: Research Article
ISSN: 1573-6105

Keywords

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Article

Mire Sugino, Elsi Dwi Hapsari, Ema Madyaningrum, Fitri Haryant, Sri Warsini, Satoshi Takada and Hiroya Matsuo

Bantul in Central Java was the most severely damaged area by a devastating earthquake in May 2006. Even after being victims themselves, nurses and midwives at public…

Abstract

Purpose

Bantul in Central Java was the most severely damaged area by a devastating earthquake in May 2006. Even after being victims themselves, nurses and midwives at public health centers worked devotedly. The purpose of this paper is to identify the nurses’ and midwives’ perceptions and understanding of their roles, as well as the needs of training in disaster preparedness and management.

Design/methodology/approach

Focus group discussions and questionnaire survey were conducted with 11 nurses and 11 midwives of public health centers in Bantul. Content analysis was applied to analyze transcripts of the focus group discussions and the responses to questionnaire.

Findings

Health care for survivors and community were provided by highly committed health professionals supported in strong community resilience. Donors driven relief programs tended to be unorganized and insensitive for local health providers. Besides, organized disaster management trainings are strongly needed to develop disaster nursing and preparedness.

Research limitations/implications

Embedded problems of local health system and current nursing practice were highlighted.

Originality/value

Focus group discussions provided vital information that can and must be used to improve disaster response capabilities. Moreover, it was equally it is crucial to examine carefully what unfolded during post-disaster intervention.

Details

Disaster Prevention and Management, vol. 23 no. 4
Type: Research Article
ISSN: 0965-3562

Keywords

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Article

Constanze Kathan‐Selck and Marjolein van Offenbeek

This paper aims to investigate the forces that influence the shifting of professional boundaries on the entry of a new medical occupation in Dutch hospitals …

Abstract

Purpose

This paper aims to investigate the forces that influence the shifting of professional boundaries on the entry of a new medical occupation in Dutch hospitals – non‐specialist emergency physicians.

Design/methodology/approach

Five case studies of Dutch hospitals were conducted and the emergency physicians' implementation process was analyzed by means of force field analysis.

Findings

Emergency physicians were conceptualized as being the answer to unequivocal contextual changes. However, their contribution to better performance varies due to problems in the implementation process. Strong socio‐political forces between traditional specialties and these new doctors mediate the intended improvement. The emergency physicians aim to establish their own organizational‐, patient‐ and knowledge‐domain by redrawing professional boundaries but they are not on a par with the specialists who set these boundaries. Consequently, emergency physicians only gradually redraw the existing boundaries, resulting in limited added value. Their reaction is to obtain power by striving to develop into a recognized specialty; ironically, by becoming an additional layer in the traditional medical hierarchy they might lose their envisaged added value.

Research limitations/implications

This paper is based on the first Dutch hospitals that implemented emergency physicians. The number of cases is therefore limited. Moreover, the study took place at an early stage of emergency physician implementation.

Practical implications

The extent of successful redrawing depends on the implementation's transition logic, the existing degree of differentiation and boundary permeability and on the ideological power developed by the leaders.

Originality/value

The introduction of emergency physicians is currently being discussed in many countries worldwide, and some countries consider following the Dutch example of non‐specialist doctors. This paper supports health professionals and hospital managers in not falling prey to the same pitfalls as some Dutch hospitals.

Details

Journal of Health Organization and Management, vol. 25 no. 1
Type: Research Article
ISSN: 1477-7266

Keywords

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Article

Agassy Manoukian, Hassan R. HassabElnaby and Vahe Odabashian

The purpose of this paper is to propose a theoretical framework for renewable energy (RE) technology commercialization and partnership synergy. The…

Abstract

Purpose

The purpose of this paper is to propose a theoretical framework for renewable energy (RE) technology commercialization and partnership synergy. The interrelations/influences between external/internal factors, stakeholders’ partnership synergy, and resources in the form of dynamic capabilities and implementation mechanisms are used in this framework to explore the path toward overcoming non-technical barriers for RE technologies commercialization success.

Design/methodology/approach

Prior relevant research/literature is reviewed to derive the proposed theoretical framework constructs, while insight information on relationship between them is gained through case study methodology. The results of four case studies along with 16 validity/checkpoint interviews were used to support/reject 25 propositions linking the constructs.

Findings

The findings of the study supported 24 out of 25 propositions representing these relations, whereas one was rejected. The framework suggests that partnership synergy, if achieved, produces a unique internal and external resource combination that will result in successful technology commercialization.

Research limitations/implications

This study is limited to RE technologies and did not focus individually on non-technical barriers. Future research may extend into other industries and explore the impact of partnership synergy on each non-technical barrier of technology commercialization.

Originality/value

Due to absence of economic theory of synergy there is a gap in academic literature regarding partnership between stakeholders of innovative technologies, the level of its synergy and their relation to successful commercialization. The study attempts to fill this gap to some extent through the produced theoretical framework, which might also help a broad array of RE projects’ participants maximize the returns by realizing full advantage of collaboration with other stakeholders.

Details

American Journal of Business, vol. 30 no. 2
Type: Research Article
ISSN: 1935-5181

Keywords

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Article

Adama Samake, Piotr Kocanda and Andrzej Kos

This paper aims to present an effective approach to integrated circuit (IC) throughput enhancement, called TΔT thermal control. It does not require any micro-architectural…

Abstract

Purpose

This paper aims to present an effective approach to integrated circuit (IC) throughput enhancement, called TΔT thermal control. It does not require any micro-architectural change of the IC. The only modification is the attachment of an additional temperature sensor at the heatsink boundary. TΔT control technique enables assessment of changes in the dimension of cooling conditions and quick reaction to the dynamic changes in the surrounding environment. As a result, the chip can operate flexibly while minimizing thermal violation.

Design/methodology/approach

Using additional knowledge about the surroundings, the on-chip temperature is regulated. The approach is first investigated theoretically. To validate the utilized thermal model, the measured temperature values of the designed and fabricated testing device are compared with the simulated one. The authors evaluated the impact of the additional sensor location on the reaction time (RT). Using the Spice model, further investigation helps to verify the hypothesis.

Findings

The control technique described in this paper showed that the temperature of the chip can be regulated using an additional knowledge of the surrounding environment. It has also been demonstrated that the attachment of an additional temperature sensor close to the cooled surface of the package enables TΔT thermal control technique to react faster (rapid powering up/down of the IC). Therefore, this lowers the risk of shutdown while keeping the temperature close to the thermal limit (the maximal temperature of the chip) for a significant period. The simulation results showed that a higher ambient temperature leads to diminution of the interval in which the on-chip temperature stays almost constant when TΔT technique is used (time shift).

Originality/value

In this study, a new thermal throttling technique that uses the full physical ability of the chip operating under thermal constraint has been evaluated.

Details

Microelectronics International, vol. 36 no. 1
Type: Research Article
ISSN: 1356-5362

Keywords

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Article

Chris I. Goodier and Ksenia Chmutina

This paper aims to demonstrate the complex inter-relationship of non-technical barriers involved in the implementation of decentralised energy (DE) projects. To meet its…

Abstract

Purpose

This paper aims to demonstrate the complex inter-relationship of non-technical barriers involved in the implementation of decentralised energy (DE) projects. To meet its ambitious 2050 target of 80 per cent carbon emission reduction, the UK needs to increase dramatically the wider uptake of DE systems. Many examples exist internationally of DE systems leading to enhanced carbon emissions reductions, including systems based not only on technological but also on more innovative policy, financial and social-economic approaches.

Design/methodology/approach

Following semi-structured interviews with key stakeholders and thematic analysis with NVivo8, four exemplar international DE case studies have been investigated.

Findings

The main non-technical barriers were not necessarily financial, as is often believed; governance barriers, such as out-of-date regulations or unreliable partners, can also play a critical role in a project’s success or failure. Social barriers such as public apathy and misinformation often affect a project’s operation. It is further hypothesised that non-technical barriers are often shaped by personal and/or organisational values related to consumption, abundance, trust and control. Finally, recommendations are provided on overcoming these barriers with regards replicating similar DE projects in the UK context.

Originality/value

A systematic perspective is presented, which takes into account the possible interactions between the various barriers and demonstrates that to remove some of these barriers, it is important to understand and account for their varied and interconnected nature.

Details

International Journal of Energy Sector Management, vol. 8 no. 4
Type: Research Article
ISSN: 1750-6220

Keywords

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Article

Jeng Hsiang Lin

The purpose of this paper is to examine the effectiveness of building codes in earthquake risk mitigation in Taiwan.

Abstract

Purpose

The purpose of this paper is to examine the effectiveness of building codes in earthquake risk mitigation in Taiwan.

Design/methodology/approach

Using probabilistic risk analysis tools with available data, this study assesses the exceedance probability of extensive damage limit for general buildings in their 50‐year useful lives. The buildings were classified into 15 categories according to their construction materials and building height. Then, the effects of construction materials, building height and construction years are detected.

Findings

The exceedance probabilities of extensive damage limit for all of the investigated buildings in their 50‐year useful lives are on the order of 10−2. The effect of construction materials and building height on seismic risk of buildings is decreasing with the development of a seismic design code. Significant discrepancy of seismic risk still exists among some buildings.

Research limitations/implications

Seismic risk analysis requires quite restrictive statistical idealizations for the relevant probabilistic terms in the mathematical formulation. The problem of imperfect simplification and lack of sufficient empirical data has shown the research needs for improvements of seismic risk assessment. The questions of what constitutes acceptable risk for various performance levels and how safe is safe enough remain context‐specific.

Originality/value

Although probabilistic risk analysis provides a tool for quantifying the probability of structural failure, current earthquake‐resistant design procedures do not relate performance levels to probability. The paper explores some probability information for current earthquake‐resistant design for general buildings during their 50‐year useful lives and the information may provide some valuable information for future code calibration.

Details

Disaster Prevention and Management: An International Journal, vol. 21 no. 3
Type: Research Article
ISSN: 0965-3562

Keywords

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Article

James Olabode Bamidele Rotimi and Suzanne Wilkinson

The study aims to explore improvements to environmental management legislation that will enable the implementation of post-disaster reconstruction activities after the…

Abstract

Purpose

The study aims to explore improvements to environmental management legislation that will enable the implementation of post-disaster reconstruction activities after the built environment has been affected by a natural disaster.

Design/methodology/approach

The study programme collates opinions from building and development control officers and other disaster practitioners based in New Zealand. The objective was to determine the practical implication of implementing reconstruction arrangements under the Resource Management Act (RMA). The survey was administered online, and a data set of 80 responses was used for the analyses.

Findings

The survey results show that the current reconstruction framework in New Zealand may cause procedural constraints and become burdensome to property owners who desire early recovery from a disaster event. Therefore, improvements are suggested to certain aspects of the RMA reconstruction provisions, so that it facilitates early recovery from natural disasters.

Originality/value

The paper is one aspect of a doctoral study that reviewed the implications of implementing reconstruction under existing legislative framework. It highlights the need for improvements to environmental management legislation to enable effective reconstruction after natural disasters in New Zealand. These have wider implications to other countries to revise their legislation before any disaster, thus reducing the problems that may be experienced while implementing environmental and developmental legislation.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 5 no. 1
Type: Research Article
ISSN: 1759-5908

Keywords

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