bluuebunny/crossref_metadata_2025_split huggingface dataset:
An analysis of knowledge outsourcing at Eduware
Authors: Lam Wing , Chua Alton Y.K. 
Published: October 2009

PurposeThis paper introduces the notion of knowledge outsourcing (KO) where external knowledge providers (KP), rather than internal experts, are contracted to provide knowledge services. The purpose of this paper is to examine the role of KO in knowledge management (KM) and the circumstances under which KO is most likely to be successful.Design/methodology/approachUsing the case study approach, the fieldwork is done at Eduware, an organization that develops and markets e‐learning courseware. Apart from conducting semi‐structured interviews with diverse stakeholders in the organization, archival data from Eduware are collected for triangulation purposes.FindingsOn the basis of the case data, two distinct types of KO relationships have been identified in Eduware. Furthermore, the risks of KO included both product‐related and process‐related ones. Three conditions under which KO are most likely to be successful were: first, a lack of in‐house expertise; second, the availability of suitable external KP; and finally, a favourable business case.Research limitations/implicationsA general process model of KO comprising the following steps is proposed: knowledge needs identification; knowledge sourcing; knowledge services negotiation; knowledge delivery; knowledge services monitoring; and knowledge utilization.Originality/valueThe dawning of a fast‐growing knowledge services industry raises new opportunities for organizations to support their KM initiatives through KO. Hitherto, there have been few works that examine the role of KO. This paper therefore serves to fill this research gap.
Institutional repositories in Canadian post‐secondary institutions
Authors: Mondoux Julie , Shiri Ali 
Published: October 2009

PurposeThe purpose of this paper is to examine and provide an insight into Canadian post‐secondary institutional repositories (IRs) with respect to user interface features and knowledge organization systems (KOS) used.Design/methodology/approachThe approach is to explore all Canadian post‐secondary institutions and their user interfaces to establish the type of searching and browsing features they have used and whether or not they have made use of KOS such as subject heading lists or classification schemes.FindingsA directory of 27 IRs in Canada is created. Incorporation of KOS in institutional repository is evaluated. The examination is focuses on accessibility, searching, KOS use, and retrieval. Evaluation shows that few IRs have incorporated complex KOS such as controlled vocabularies. Browsing and searching options are available, but user interfaces are usually not modified to enhance information retrieval.Originality/valueThis is the first paper examining Canadian IRs from the perspectives of searching, browsing and the use of KOS.
Quality documentation and records management: a survey of Turkish universities
Authors: Külcü Özgür 
Published: October 2009

PurposeThe purpose of this paper is to assess the records system of a Turkish public university, using the example of Hacettepe University in order to develop records management programs in Turkish universities.Design/methodology/approachA survey method is used in this research; data are gathered through literature reviews, legal analysis, questionnaires, and interviews. Analyzing the information gathered concerning the differences and commonalities of the systems will allow researchers to develop solutions for records management.FindingsThe paper finds that institutional processes in Turkish public universities relating to records are not able to meet legal and administrative requirements, and this inadequacy resulted from erroneous applications, insufficient legal regulations, lack of quality‐based administrative structure, ineffective records management systems, and unqualified staff.Originality/valueThis paper uses analysis techniques specific to the records management and quality management fields in order to provide information about the administrative systems needed for quality‐based systems documentation.
Okapi‐based XML indexing
Authors: Lu Wei , MacFarlane Andrew , Venuti Fabio 
Published: October 2009

PurposeBeing an important data exchange and information storage standard, XML has generated a great deal of interest and particular attention has been paid to the issue of XML indexing. Clear use cases for structured search in XML have been established. However, most of the research in the area is either based on relational database systems or specialized semi‐structured data management systems. This paper aims to propose a method for XML indexing based on the information retrieval (IR) system Okapi.Design/methodology/approachFirst, the paper reviews the structure of inverted files and gives an overview of the issues of why this indexing mechanism cannot properly support XML retrieval, using the underlying data structures of Okapi as an example. Then the paper explores a revised method implemented on Okapi using path indexing structures. The paper evaluates these index structures through the metrics of indexing run time, path search run time and space costs using the INEX and Reuters RVC1 collections.FindingsInitial results on the INEX collections show that there is a substantial overhead in space costs for the method, but this increase does not affect run time adversely. Indexing results on differing sized Reuters RVC1 sub‐collections show that the increase in space costs with increasing the size of a collection is significant, but in terms of run time the increase is linear. Path search results show sub‐millisecond run times, demonstrating minimal overhead for XML search.Practical implicationsOverall, the results show the method implemented to support XML search in a traditional IR system such as Okapi is viable.Originality/valueThe paper provides useful information on a method for XML indexing based on the IR system Okapi.
An efficient method for solution of inverse dynamics of Stewart platform
Authors: Mahmoodi A. , Menhaj M.B. , Sabzehparvar M. 
Published: October 2009

PurposeThe purpose of this paper is to present an algorithm for inverse dynamics problem of a generally configured Stewart platform which is both fast and accurate.Design/methodology/approachA Newton‐Euler approach is presented, using the advantage of body coordinate frames, instead of inertial ones in order to omit redundant matrix transformations.FindingsThe method is found to lead to an efficient algorithm for inverse dynamics of a generally configured Stewart platform, which is at least three times faster than the available algorithms. This algorithm is at the same time more accurate, due to considering the gyroscopic effects of rotary parts within the legs.Originality/valueUtilizing body coordinate frames for both platform and legs (instead of inertial ones) and taking into account the gyroscopic effects of the rotary parts within the leg, are the innovative aspects of this paper. The more significant achievement of the presented method is the remarkably faster rate of convergence, which is very important in feedback linearization control.
Design and analysis of nano momentum wheel for picosatellite attitude control system
Authors: Jayaram Sanjay 
Published: October 2009

PurposeRecent advances in nano and picosatellite missions and future such missions require faster and accurate pointing accuracies using reaction wheels for attitude control purposes. The ability to put one or three reaction wheels on the spacecraft in the 1‐20 kg range enables new classes of missions. The purpose of this paper is to present the detailed design, analysis, and construction of a miniature reaction wheel prototype. The designed pico‐reaction wheel promises to fulfill the need for low cost, low mass, low power, high reliability, and high‐accuracy attitude control systems for applications such as communications, remote sensing, and space science.Design/methodology/approachDetails about the design, analysis and development of pico‐reaction wheel are discussed. The development status of the system is outlined and the working prototype of the device is described and some preliminary test results are given. Requirements specifications, design and analysis and finite element analysis are covered.FindingsA fully functional prototype has been developed and testing has been conducted that demonstrated the effectiveness of the device. The pico‐reaction wheel offers a new attitude control system implementation strategy for pico and nanosatellite missions that can help to significantly reduce the spacecraft costs. The key to our success has been to design the reaction wheel from ground‐up for simplicity.Originality/valueThe designed pico‐reaction wheel satisfied all the constraints and requirements. Furthermore, its advantages include scalability and modularity by virtue of using commercial‐off‐the‐shelf components. A pico‐reaction wheel has been successfully designed and is now available to pico and nanosatellite builders at a cost that is consistent with low‐cost research missions.
On estimation of vehicle linear model parameters
Authors: Tayefi Morteza , Roshanian Jafar , Ghaffari Ali 
Published: October 2009

PurposeThe purpose of this paper is to identify linear model parameters of launch vehicles based on the actual flight test data. To compare the estimated parameters with the ones obtained by two other approaches: identification based on the recorded data from six‐degree‐freedom simulation of motion and linearization of the equations of motion via small‐disturbance theory as an analytical method.Design/methodology/approachAs the vehicle contains all the key issues in system identification such as time‐varying, unstable, nonlinear, and closed‐loop dynamics, Kalman filter method under the autoregressive with exogenous input model structure is used as a powerful method to estimate the dynamic parameters.FindingsSimulation results demonstrate that the linear model parameters used in the vehicle design and analysis should be validated by flight test data to accurate the vehicle dynamic model as more as possible.Practical implicationsOne of the most important usages of a linear model of aerospace vehicles is to design their controller. Another application of the algorithm presented in this paper is to estimate online dynamic parameters of the vehicle when they are required for the operation of the control system.Originality/valueBeing strongly affected by vehicle dynamic characteristics, linear model parameters of launch vehicles play important part in their design and analysis.
Information filtering and its application to relative navigation
Authors: Wang Xiaogang , Cui Naigang , Guo Jifeng 
Published: October 2009

PurposeThe purpose of this paper is to estimate the relative states between the leader and wingman based on vision‐based relative navigation system using extended information filtering (EIF).Design/methodology/approachFor a typical leader‐wingman formation case, the relative navigation equations are introduced. Vision‐based navigation system which consists of an optical sensor and a series of specific light sources is used to capture the line‐of‐sight measurement between the two unmanned aerial vehicles (UAVs). Owing to the limitations on the field of view of the optical sensor, not every specific light source would be visible. And the spatial relative position of the two vehicles could also contributes to the diminution of visibility since some of the light sources are likely to be shielded by the frame and wing. Therefore, the EIF can be applied to the vision‐based relative navigation while every specific light source is regarded and processed as an individual information source. It is demonstrated that the information of visual source could be easily extracted by the simple update equation of information filtering.FindingsThe EIF could be used in vision‐based relative navigation system to give an accurate estimation of relative position, velocity and attitude without increasing the amount of calculation or decreasing the estimation accuracy compared to conventional Kalman filtering.Originality/valueThe EIF is first introduced to the vision‐based relative navigation in order to provide relative state between UAVs during formation flight.
Influence of roller burnishing on surface properties and corrosion resistance in steel
Authors: Al‐Qawabeha Ubeidulla , Eid Al‐Rawajfeh Aiman , Al‐Shamaileh Ehab 
Published: October 2009

PurposeRoller burnishing (RB) is a finishing treatment method that is used to impart certain physical and mechanical properties, such as surface roughness, improved visual appearance, or increased corrosion, friction, wear, and fatigue resistance. The purpose of this paper is to study, the influence of RB on corrosion resistance in A53 steel in HCl solution.Design/methodology/approachMicrohardness (MH), microstructure, weight loss, and potentiostatic polarization are investigated at pressing forces of 40, 60, 80, 100 and 120 N.FindingsMH increases with increasing the applied force and the percentage improvements are found to be 12, 24, 28, 35 and 65 percent for 40, 60, 80, 100 and 120 N RB pressing forces, respectively. Weight losses, in general, showed an optimum value at about 80 N. Corrosion potential and corrosion current decrease with increasing pressing force and reached a minimum at about 80 N, then begin to increase with increasing RB force.Originality/valueThe results present in this paper are important to the understanding of the effect of the surface plastic deformation methods on surface properties and corrosion resistance in steel.
Study on the synergistic inhibitive effect of an imidazole derivative and BTA on copper in deionised water
Authors: Xuejun Xie , Jie He , Ke Lv , Ling Pan 
Published: October 2009

PurposeThe purpose of this paper is to study the inhibitive property of the mixture of an imidazole derivative (IMA) and benzotriazole (BTA) to the copper in deionised water.Design/methodology/approachStatic mass‐loss tests, electrochemical tests and surface analysis are used to study the inhibitive property of the mixture of an IMA and BTA to copper in deionised water.FindingsThere is a synergistic inhibitive effect on inhibition of the copper by the IMA and BTA in deionised water, and the mixture of the IMA and BTA is an effective inhibitor that mainly hinders the anode reaction.Practical implicationsThe mixture of the IMA and BTA is an effective inhibitor and can be used to prevent copper from corrosion in deionised water.Originality/valueThe mixture of the IMA and BTA is an effective inhibitor and should be suitable for use in the cooling water of an electricity generator unit to prevent corrosion of the copper conductors.
Microeconomics of collaboration and network configuration
Authors: Weaver Robert D. 
Published: October 2009

PurposeThe past decade has witnessed a trend toward unbundling of enterprises that were once highly integrated in vertical forms or horizontally as conglomerates. The economic forces behind these changes simultaneously enabled collaborative relationships that replaced command‐control coordination. While such change has been widespread, the food industry serves as an example of an industry where such strategies have been incompletely pursued. This paper aims to provide a microeconomic explanation of three bases for the emergence of collaboration and network formation: transaction costs, interdependence in value creation processes, and shared resources.Design/methodology/approachWithin a setting of the food industry, a microeconomic theory of firm level choice of transactions is presented and extended to consider market level equilibrium in where persistent relationships are defined to compose an integrated economic network.FindingsThe paper presents a framework for identification of the optimal pattern of relationships across firms to compose networks that could enhance the competitive advantage and the economic performance of the food sector.Originality/valueWhile performance of the food system has been the target of extensive public policy, that policy has typically viewed food enterprises as autonomous units operating through competitive markets. This paper provides a framework that highlights an economic rationale for collaboration across food enterprises that offers enhanced performance while maintaining essential aspects of competition.
Chain governance structures: the European traditional food sector
Authors: Gellynck Xavier , Molnár Adrienn 
Published: October 2009

PurposeThe purpose of the paper is to identify chain‐level, product‐, and country‐specific characteristics of chain governance structures in the traditional food sector in the European Union (EU).Design/methodology/approachThe approach combined taxonomy compilation: selecting chain governance structures, Selecting determining variables and assigning values to them; and pilot testing: individual interviews with 54 companies across Belgium, Italy and Hungary representing cheese, beer, white pepper and meat chains. The number of participants is 54.FindingsIt was found that the chains varied largely in terms of their complexity. Besides chain‐level, product‐, and country‐specific differences, the retailers' size is a determining factor of the applied governance structure.Research limitations/implicationsThe research only considers traditional food chains.Practical implicationsThe paper provides guidance for selecting an appropriate governance structure given the characteristics of the chain, the products or the country.Originality/valueThe paper compiles a taxonomy providing important insights to determining variables of the application of governance structures. Further, it analyzes chain‐level, product‐, and country‐specific differences.
Inter‐firm network capability: how it affects buyer‐supplier performance
Authors: Ziggers G.W. , Henseler J. 
Published: October 2009

PurposeThe purpose of this paper is to offer a view that a firm's critical resources and capabilities span firm boundaries, and are embedded in inter‐firm resources and routines.Design/methodology/approachBuilding on a capability view the paper argues that firms can engender sustainable competitive advantage by enabling firms to build and leverage inter‐organizational relationships to generate relational rents by: fostering close working relationships with a limited number of suppliers; building effective network structures, and developing a long term orientation. Using PLS path modelling, the paper empirically tests a number of hypothesized relationships based on a sample of 176 Dutch firms.FindingsThe results demonstrate that inter‐firm network capability significantly and substantially affects supplier performance as well as buyer performance, thereby providing evidence of the predictive validity of the inter‐firm network capability construct.Originality/valueThe study contributes to a more complete understanding of a firm's collaborative capabilities in developing and leveraging inter‐organizational relationships and enhances the knowledge of the drivers of rent generating capabilities that contribute to the firm's performance.
Prediction markets: a powerful tool for supply network management?
Authors: Hedtrich Friedrich , Loy Jens‐Peter , Müller Rolf A.E. 
Published: October 2009

PurposeThe purpose of this paper is to evaluate the possible advantages of applying prediction markets to supply network management. Are the same encouraging results possible as in the election application of prediction markets?Design/methodology/approachThis is a paper focused on the requirements and the possible results of the application based on the literature for supply network management and prediction markets. It discusses the potential of prediction markets to improve information management in supply networks.FindingsThe paper finds that prediction markets are a new instrument to collect the diverse information among the supply chain members, and to publish this information to the other members.Practical implicationsPrediction markets are able to improve the information basis for decision making in supply chains.Originality/valueThis paper shows the application of prediction markets in a supply network management case and the possibilities and limitations of prediction markets to collect, and publish information within the supply chain.
Indications for drivers of innovation in the food sector
Authors: Capitanio Fabian , Coppola Adele , Pascucci Stefano 
Published: October 2009

PurposeThe purpose of the paper is to analyse the main dynamics of the Italian food system, focusing on the relationships between the inclination to innovate and a set of firm characteristics.Design/methodology/approachThe empirical analysis includes two steps. In the first, principal component analysis is carried out in order to identify factors that can explain the features that differentiate Italian food firms. In the second phase the role of such factors on innovation behaviour is quantified by means of a logit model.FindingsThe empirical analysis showed that, in the Italian food sector, innovation adoption follows different patterns when product or process innovation is considered. In particular, the probability of introducing product innovation is influenced by the quality of human capital, the geographical context and, to a lesser extent, the age of the firm.Research limitations/implicationsThe research is restricted in so far as it only considers the Italian food sector. Because the data survey is representative only at the level of the manufacturing industry as a whole and excludes firms with fewer than ten employees, the analysis for the food sector can only be indicative.Practical implicationsThis paper provides a useful source of knowledge on the innovative behaviour of Italian firms. This highlights the need to provide for diversified intervention strategies to stimulate and enforce innovation in the Italian food sector.Originality/valueThe research provides some initial insight into firm perspectives in the role of innovations to enhance firms’ market competitiveness.
World orange juice market: benefits of generic advertising
Authors: Spreen Thomas , Jauregui Carlos 
Published: October 2009

PurposeThis paper aims to examine the generic advertising program of the Florida processed orange industry.Design/methodology/approachA model of the world orange juice market is used to assess the presence and level of free riding by Brazilian orange growers on the Florida program.FindingsRecent legal challenges have caused the program to be fully funded by Florida orange growers. The results suggest that elimination of the promotion program would negatively impact grower revenue in both Florida and Sao Paulo and this provides evidence that there is considerable free riding by import suppliers to the US orange juice market.Originality/valueThe paper uses a model of the world orange juice market to consider the effect of elimination of the Florida generic advertising program to promote orange juice consumption in the USA.