bluuebunny/crossref_metadata_2025_split huggingface dataset:
Wear analysis of centrifugal slurry pump impellers
Authors: Khalid Y.A. , Sapuan S.M. 
Published: February 2007

PurposeTo design and fabricate a wear testing rig for a water pump impeller and to select a parameter that can be used to determine the wear rates of slurry pump impeller.Design/methodology/approachA wear equipment was designed and fabricated in this study that of main rotating shaft, supported by two ball bearings, and main electric motor bully mechanism for the rotational speed torque needed. An impeller made of cast iron was selected. The wear medium selected consists of solid particles and water. The tests were conducted by letting the impeller to rotate in slurry. The wear data collection are divided into impeller's weight loss, impeller's diameter loss, impeller blade's thickness loss, impeller's blade height loss and impeller's thickness change.FindingsThe major type of wear that takes place in this experiment is erosion. The weight loss of the impeller is due to the material removal from the impeller as result of erosion wear. The diameter loss of the impeller is attributed to the impingement of solid particles on the surface area. The surface topography under the microscope indicates that the region near the center of impeller encounters less wear compared to the region at the rim of the impeller.Originality/valueFrom this study, among all the parameters studied, the height loss of impeller blades encounters the highest percentage of wear. This is useful for determining the running hours before the complete failure of the impeller for slurry and impeller types used in this study.
Wear performance of some phenolic composites with boric acid
Authors: Mutlu I. , Oner C. , Cevik I. , Findik F. 
Published: February 2007

PurposeThe aim of the research is to investigate wear performance of some phenolic composites with boric acid.Design/methodology/approachThe brake lining which has new formulation has been produced by using various additive materials. Various techniques have been used in the production of brake lining. These phenolic composites were subjected to friction and wear tests under different loads, and changes in the hardness and microstructures were examined.FindingsAs a result of this study, the following findings are reported. It was not found a direct proportionality between hardness and wear resistance due to the complexity of composite structure. Heat treatment application changed the microstructure of the brake lining, and increased the hardness and also decreased the density. With the increasing of temperature, the ingredients in the braking pad were affected other due to faster diffusion. On the other hand, hardness of specimen increases due to heat treatment and also specific wear ratio changes. As a filling material, barite was used due to better performance in the environmental conditions. More wear was observed in the bigger powder particles comparing to the smaller ones due to more structural loss. Squealing was heard in fiber un‐reinforced brake lining due to more barite content. In the present samples, boric acid deports the water and establishing the structural equilibrium. Therefore, these samples supplied higher and stable friction of coefficient. Also, heat treatment supplied a stable friction coefficient. With the increasing of copper powder into specimens, friction coefficient also increased. Heat treatment made the increment of hardness of specimens and also it made effect on the hardness with strengthening bonds of interparticles.Research limitations/implicationsLimitations in the present research are as follows: two different pressures and eight different temperatures were used and brake linings were subjected to wear test, hardness tests, microstructures were examined.Practical implicationsFor future work, instead of buying expensive brake lining, new and cheaper phenolic linings are produced. By this process, economic benefit can be gained and also environmental protection can be succeeded in producing such asbestos free brake linings.Originality/valueThis paper fulfills an identified information and offers practical help to the industrial firms working with brake lining and also to the academicians working on wear of materials.
Toward large scale assessment of information and communication technology literacy
Authors: Somerville Mary M. , Lampert Lynn D. , Dabbour Katherine S. , Harlan Sallie , Schader Barbara 
Published: February 2007

PurposeThe purpose of this paper is to provide guidance to those contemplating or preparing to administer a large scale information literacy assessment such as the ETS ICT assessment instrument. The case studies and literature review provide real life examples of how to consider implementing the ETS ICT instrument with special attention to issues such as collaboration, timing, marketing, budgeting, and developing a strategy that includes a discussion of how testing results will inform campus information literacy curriculum development and programming.Design/methodology/approachThe planning and implementation by two California State University campuses that administrated beta test versions of the ETS ICT assessment instrument are documented. Background about ICT and guidance for future administrations of large scale assessments on university and college campuses are discussed.FindingsThe paper provides background information, techniques and guidance for academic librarians contemplating future administrations and usages of large scale assessments of student information and communication technology skills, like the ETS ICT assessment. Examples of necessary planning stages and collaboration are provided as well as a discussion of the value of large scale assessments for students, campuses and information literacy programs.Practical implicationsThis paper offers guidance for academic librarians and libraries interested in assessing their information literacy programs and/or working within their university to conduct a large scale assessment of student ICT literacy skills using the ETS ICT assessment instrument.Originality/valueThe strategies and ideas presented in this paper will help inform other academic libraries and librarians faced with administrating and implementing a large scale assessment instrument such as the ETS ICT instrument.
Stumbling, bumbling, teleporting and flying… librarian avatars in Second Life: selected bibliography
Authors: Grassian Esther , Trueman Rhonda B. , Clemson Patrice 
Published: February 2007

PurposeThe purpose of this paper is to provide a selective bibliography for librarians and adminstrators in all types of libraries, with sources that can help them understand virtual worlds and their applications for libraries. Second Life is used as an example of virtual worlds.Design/methodology/approachThe authors describe a range of primarily recent publications (2004‐2006), which aim to provide practical advice and information, to aid librarians and administrators seeking to understand and utilize virtual worlds.FindingsProvides information about each source, indicating content and how the information can help. Acknowledges and explores the lack of knowledge among many librarians and administrators of expanded Web technologies like 3D virtual worlds and their reference, collections and information literacy applications, and provides an annotated list of helpful publications.Research limitations/implicationsThis is not an exhaustive list and is particularly limited in numbers of research publications due to the fact that this technology is new and research in this area is only just emerging.Practical implicationsA useful source of information for librarians and administrators in all types of libraries considering exploring and experimenting with library services within virtual worlds.Originality/valueThis selected bibliography fulfills an identified information/resources need by offering a varied list of publications which can provide practical help to library workers supporting and venturing into the rapidly developing and high profile virtual worlds arena.
Knowledge management
Authors: Borges Tiago Maria Teresa , Pedro Almeida Couto João , Gomes Tiago Flávio , Cabral Vieira António 
Published: February 2007

PurposeThis paper aims to determine whether the implementation of knowledge management (KM) is linked to e‐business performance and to identify the nature of the relationship existing in the different components of knowledge‐sharing and application and internet‐based KM.Design/methodology/approachThis paper establishes a new model of the practices and results of the KM which has been tested in European companies. For that purpose, a structural equation modelling analysis was used.FindingsThe results show that product innovation and external employees’ access to databases have a strong positive effect on the maximization of internet‐based KM and that internet‐based KM has also a positive impact on e‐business performance.Research limitations/implicationsLimitations of this study include the need for more research into the KM cycle. This paper contributes to the research on this topic with new evidence in a broad sample.Practical implicationsThese results point to KM's usefulness in improving every day e‐business processes. Therefore managers should be aware of these benefits.Originality/valueThe present study advances knowledge on the nature of the relative importance of different components of internet‐based KM as drivers of e‐business performance.
What impact has practitioner research had in the marketing academy?
Authors: Hubbard Raymond , Norman Andrew T. 
Published: February 2007

PurposeGiven marketing's fundamentally applied nature, to compare the relative impacts in the academy of work published by three groups – practitioners, practitioner‐academic alliances, and academics.Design/methodology/approach – Social Sciences Citation Index data were used to estimate the influence of 438 articles published by practitioners, practitioner‐academic alliances, and academics in five marketing journals over the period 1970‐2000.Findings – Citations for academic research were more than twice as high as those for practitioners. Conversely, citations for practitioner‐academic research rival those of the academics, and sometimes exceed them.Research limitations/implications – Only considered US marketing journals.Practical implications – Despite some excellent citation evidence for practitioner‐academic work, additional cooperative efforts must be pursued to ensure the relevance of academic marketing research to practitioner needs.Originality/value – This is the only study to “objectively” address the impact of practitioner, practitioner‐academic alliance, and academic research in the academy.
The effect of leadership on values‐based management
Authors: Buchko Aaron A. 
Published: February 2007

PurposeThe purpose of this paper is to examine the role of organization leaders, particularly top managers, in building support for and developing behaviors that are consistent with values‐based management, by providing an empirical assessment of the effect of an organization's senior leadership on the values‐based management process.Design/methodology/approachAs part of a program of organization development, a values‐based management approach was implemented in a large manufacturing organization. As part of the process, a system of measuring and evaluating values‐based behaviors was developed. The senior leaders of two groups of the organization were assessed in terms of their values behaviors, and their direct reports were likewise evaluated by the organization using a 360° process.FindingsThe results indicated that the leader's values behaviors were significantly related to the values behaviors of subordinates. Subordinates of leaders who strongly demonstrated values‐based management behaviors were more likely to exhibit the same behaviors.Originality/valueThe value of these findings lies in the suggestion that the role of organization leaders, and specifically the behaviors demonstrated by leaders, are important in determining the outcomes of values‐based management techniques. Subordinates may take cues from their leaders and model their values‐based behaviors after those of the organization's leadership.
The importance of management style in labour retention
Authors: Taplin Ian M. , Winterton Jonathan 
Published: February 2007

PurposeThe purpose of this paper is to examine the role that management style plays in retaining workers in a high labour turnover industry.Design/methodology/approachCase study approach based upon extensive interviews with workers and managers derived from industry wide data set.FindingsPositive actions by management promote worker attachment to leaders and the organization and are crucial in sustaining work values that diminish the likelihood of turnover.Practical implicationsManagement style is a variable that is often overlooked in shaping worker attitudes and is crucial to understanding why workers stay in these firms.Originality/valueWhereas most studies of turnover focus upon individual attributes, we examine the structural characteristics of the workplace that permit workers of different ages and skill sets to maximise their efficiency and earnings and the role played by management style in decisively shaping that structure.
Spatial peripheries, social peripheries: reflections on the “suburbs” of Paris
Authors: Montagné Villette Solange , Hardill Irene 
Published: February 2007

PurposeThe purpose of this paper is to seek to conribute to debates on disadvantage and social exclusion by examining the evolution of the concept of “periphery”, with specific reference to Paris.Design/methodology/approachThe paper draws on research undertaken on the “suburbs” of Paris in order to highlight some of the socio‐spatial dimensions of social exclusion.FindingsThe notion of periphery has evolved from being a purely spatial concept, to a functional concept, and during the crises of the 1980s it became a key social concept in France.Originality/valueToday, it is the absence of employment, or common values which characterises those who make up a social periphery. It is the unwaged, or the poor (in waged work or retirees), and immigrants, who live in the Parisian socio‐suburban periphery.
Testing the hypothesis of long‐run money neutrality in the Middle East
Authors: Tawadros George B. 
Published: February 2007

PurposeThe purpose of this paper is to test the hypothesis of long‐run money neutrality for Egypt, Jordan and Morocco using seasonal cointegration techniques.Design/methodology/approachThe paper uses seasonal integration and cointegration techniques to test the neutrality of money hypothesis for three Middle Eastern economies, using quarterly data on money, prices and real income. The benefit of using this technique lies in its ability to distinguish between cointegration at different frequencies.FindingsThe empirical results show that money is cointegrated with prices, but not with output at the zero frequency for Egypt, Jordan and Morocco. This suggests that money affects nominal but not real variables in the long run, implying that money is neutral in these three Middle Eastern economies.Practical implicationsThe implication of this finding for policy analysis suggests that the anti‐inflationary policy prescription espoused by the monetarist school should be followed in these three Middle Eastern countries, in order to curb inflation.Originality/valueThe paper provides further evidence in support of money neutrality using an unconventional approach for three developing Middle Eastern economies.
Are multinationals afraid of social violence in emerging markets?
Authors: Evrensel Ayşe Y. , Kutan Ali M. 
Published: February 2007

PurposeThe fact that previous studies regarding the effects of social violence on foreign direct investment (FDI) flows come to contradictory conclusions motivates this paper. Therefore, it seeks to investigate the social violence‐FDI relationship in an ethnically heterogeneous and resource‐rich country, Indonesia.Design/methodology/approachThe theoretical framework of the paper examines the social violence‐FDI relationship and identifies the circumstances under which social violence in the host country adversely affects FDI inflows. The empirical analysis uses a unique dataset that consists of FDI flows and different types of social violence in 26 provinces of Indonesia during the period 1992‐2001. A fixed‐effects regression is applied to estimate the effects of social violence on FDI flows in Indonesian provinces.FindingsThe results indicate that only certain types of social violence such as ethnic and industrial relations violence are detrimental to FDI. Multinational firms seem to differentiate among the several types of social violence and respond only to those that may affect their expected future profits.Practical implicationsThe immediate policy implication of this result implies that developing countries having the desire to attract FDI flows should be aware of the fact that multinational firms seem to differentiate among the several types of social violence and respond only to those that may affect their expected future profits.Originality/valueThis paper contributes to the literature in two ways. First, the dataset employed in the empirical analysis is unique in that it contains different types of social violence and associated damage in a country. Second and because of the first point, the empirical findings provide an explanation of the conflicting results reported in the literature regarding the social violence‐FDI relationship.
Novel design and development of an active feeder
Authors: Chua Patrick S.K. 
Published: February 2007

PurposeThis paper aims to focus on the novel design and development of an automatic feeding system which is capable of feeding cylindrical parts which are fragile and powdery in nature and possess asymmetrical features such as a groove near to one end.Design/methodology/approachIt is an active feeder, performing its task without having to reject any feeding part by performing active orientation of feeding parts that are in the undesired orientation. This design incorporating active orientating capability is aimed at 100 percent feeding efficiency. The system is controlled and driven by a programmable logic controller and electropneumatics.FindingsSystem evaluation results showed that the average jam rate is below 5 percent and the percentage of correctly orientated parts is above 95 percent. With enhancement and fine tuning, the system could become a very useful feeder for industry in the future.Research limitations/implicationsThe scope of this paper focuses on presentation of the design concept, development and evaluation of the feeder only and design calculations are not included.Originality/valueThis paper is of value to those who are involved in the manufacturing of small delicate and powdery engineering parts such as those providing performs to the semiconductor industry for encapsulation of integrated circuit chips.
Understanding implicit models that guide the coaching process
Authors: Barner Robert , Higgins Julie 
Published: February 2007

PurposeThis paper seeks to provide readers with a better understanding of four theory models that inform coaching practice, and to reflect on how the theoretical approach that one adopts is likely to shape one's coaching practice.Design/methodology/approachThis article is based on the authors' combined 30 years of experience as internal and external executive coaches. Organizational examples are provided to illustrate key concepts.FindingsThe authors conclude that, although coaches tend to be eclectic in the methods that they employ, they tend to center their craft on one of four prevailing coaching models: the clinical model, the behavioral model, the systems model, and the social constructionist model. These models inform the practice and shape the approaches that OD practitioners take in directing coaching assessments and interventions.Practical implicationsThis article serves as a “think piece” to help OD practitioners understand the theoretical assumptions, constraints, and caveats that are associated with each model. The authors strongly believe that having this knowledge enables practitioners to introduce a higher level of discipline and effectiveness into the coaching process.Originality/valueThis article represents a unique attempt to bridge theory and practice by encouraging readers to reflect on how each individual's practice is developed from, and informed by, a particular theory position. It represents one of the few papers that have tackled this particular management development topic.
Fitness for purpose
Authors: Fianchini Maria 
Published: February 2007

PurposeThe paper seeks to work out methodologies, procedures and tools to evaluate the fitness for purpose of university buildings, to be used for the brief.Design/methodology/approachThe evaluation methodology is based on an approach comparing people needs with building performances and on an integration of analytical methods with empirical ones. It has been tested on a case study.FindingsThe test revealed that building occupants suffered some inconveniences with their activities that conditioned their well‐being and their work. It also attested the importance of an exact identification of the needs of the different user groups and the utility of accomplishing parametric controls and dimensional verifications together with user surveys and observation of behaviour in order to verify the fitness for purpose of the buildings.Research limitations/implicationsThe research theme is part of the more general issue of the evaluation of the quality of public services. Other criteria and parameters would have to be elaborated and applied to buildings with different uses.Practical implicationsThe paper presents a very useful evaluation model that allows very precise reflection on how buildings are used to determine the real needs and the problems that cause bad service quality and to prompt rehabilitation solutions.Originality/valueThis paper fulfils an identified information/resources need and offers practical help to undertake a performance evaluation in the public sector. Moreover, it presents a case of building quality evaluation with user participation, which is quite unusual in Italy.
Lack of affordable housing finance in Malawi's major urban areas
Authors: Chapinduka Nyasulu E. , Cloete C.E. 
Published: February 2007

PurposeThe purpose of this research is to investigate the unaffordability of housing and limited access to finance as limiting factors to the provision of adequate housing in the urban areas of Malawi.Design/methodology/approachPrimary data were collected by means of questionnaires followed up by semi‐structured personal interviews. These interviews were conducted with all major role players in the urban housing finance industry. Secondary data were obtained through scrutiny of the stakeholders' relevant official records and reports kept at their offices. The subset of analysis was chosen to be the local authorities of Blantyre, Zomba, Lilongwe and Mzuzu.FindingsFinance from the formal sector is accessible to fewer than 35 per cent of the urban population and less than 16 per cent of households in the major urban areas can afford an average house. No government subsidies are available for end users and development financing is limited and extremely dear. The contribution from non‐conventional finance sources to housing finance is negligible.Practical implicationsIt is suggested that the use of various instruments may alleviate the situation. Such instruments could include a housing tax for the implementation of subsidies, subsidies from developed countries, the formation of cooperatives and the implementation of securitisation.Originality/valueLimited research exists on the problem of housing finance in Malawi. This paper quantifies the situation. Implementation of the recommendations will contribute to the provision of adequate housing in Malawi.