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      • The effect of change in organizational identity on knowledge creation by mobile R&D workers in M&As

        Lee, Jeonghwan,Park, Namgyoo K.,Kim, Hyojung Emerald Group Publishing Limited 2014 Journal of organizational change management Vol.27 No.1

        <B>Purpose</B> - The purpose of this paper is to examine the relationship between change in organizational identity and knowledge creation of mobile research and development (R&D) workers by combining the literature on human mobility and mergers and acquisitions (M&As). <B>Design/methodology/approach</B> - Negative binomial regression was used to test the hypotheses, based on knowledge creation of 410 mobile R&D workers in 75 high-technology M&As. <B>Findings</B> - The findings showed that while a change in organizational identity after M&As decreased the knowledge creation by R&D workers who moved before M&As, a higher degree of human capital in mobile R&D workers could increase knowledge creation after M&As. A moderating effect of the change in organizational identity on the relationship between knowledge creation and human capital of mobile R&D workers was also found. <B>Research limitations/implications</B> - This paper augmented the research opportunity on the organizational change and knowledge creation during an M&A by combining study of individual-level human mobility during firm-level M&As, suggesting change in organizational identity affects knowledge creation of mobile R&D workers. A limitation of this study is the focus of human capital accumulated in the prior company before movement. <B>Practical implications</B> - The study suggests that managers intending to acquire knowledge through human mobility and M&As must implement post-mergers activities such as structural integration with care. <B>Originality/value</B> - Much of the literature on human mobility has focused on knowledge creation after movement, regardless of the changes that may occur in of focal dyadic companies during M&As. The paper might be one of the first studies of knowledge creation of mobile R&D workers within the context of M&As.

      • RFID-based traceability in the supply chain

        Lee, Dongmyung,Park, Jinwoo Emerald Group Publishing Limited 2008 INDUSTRIAL MANAGEMENT & DATA SYSTEMS - Vol.108 No.6

        <B>Purpose</B> - The paper aims to propose a novel dynamic tracing task model to enhance the traceability range along the supply chain beyond simple distribution channels. It further extends the study by implementing the system architecture with the proposed data model to support the dynamic tracing task. <B>Design/methodology/approach</B> - Typical processes of supply chain in manufacturing industries using bill of material data to extract and define information requirements are followed. The data elements are systematically selected and explained in the proposed model step by step. <B>Findings</B> - This paper found that existing Radio Frequency IDentification (RFID) data management scheme has to be modified so as to provide end-to-end traceability. <B>Research limitations/implications</B> - Validation of the proposed model and system architecture should be done through actual implementation in industrial settings. <B>Practical implications</B> - The paper gives an insight to many system managers and executors in how full traceability along the supply chain can actually be realized. <B>Originality/value</B> - Several studies have discussed the traceability issues but failed to construct a system and methodologies to obtain the full traceability range. However, this paper contributes by presenting the specific methodological steps which can provide powerful solutions to build a system for traceability, exploiting RFID technology.

      • Real-time hardware simulation of a small-scale helicopter dynamics

        Budiyono, Agus,Putro, Idris E.,Yoon, K.,Raharja, Gilar B.,Kim, G.B. Emerald Group Publishing Limited 2010 Aircraft engineering and aerospace technology Vol.82 No.6

        <B>Purpose</B> - The purpose of this paper is to develop a real-time simulation environment for the validation of controller for an autonomous small-scale helicopter. <B>Design/methodology/approach</B> - The real-time simulation platform is developed based on the nonlinear model of a series of small-scale helicopters. Dynamics of small-scale helicopter is analyzed through simulation. The controller is designed based on the extracted linear model. <B>Findings</B> - The model-based linear controller can be effectively designed and tested using real-time simulation platform. The hover controller is demonstrated to be robust against wind disturbance. <B>Research limitations/implications</B> - To use the real-time simulation environment to test and validate controllers for small-scale helicopters, basic helicopter parameters need to be measured, calculated or estimated. <B>Practical implications</B> - The real-time simulation environment can be used generically to test and validate controllers for small-scale helicopters. <B>Originality/value</B> - The paper presents the design and development of a low-cost hardware in the loop simulation environment using xPC target critical for validating controllers for small-scale helicopters.

      • State space identification and implementation of <i>H</i><sub>8</sub> control design for small-scale helicopter

        Dharmayanda, Hardian Reza,Budiyono, Agus,Kang, Taesam Emerald Group Publishing Limited 2010 Aircraft engineering and aerospace technology Vol.82 No.6

        <B>Purpose</B> - The purpose of this paper is to design a model-based robust controller for autonomous hovering of a small-scale helicopter. <B>Design/methodology/approach</B> - The model is developed using prediction error minimization (PEM) system identification method implemented to flight data. Based on the extracted linear model, an <I>H</I><SUB>8</SUB> controller is synthesized for robustness against parametric uncertainties and disturbances. <B>Findings</B> - The proposed techniques for modelling provide a linear state-space model which correlates well with the recorded flight data. The synthesized <I>H</I><SUB>8</SUB> controller demonstrates an effective performance which rejects both sinusoidal and step input disturbances. The controller enables the attitude angle follow the reference target while keeping the attitude rate constant about zero for hover flight condition. <B>Research limitations/implications</B> - The synthesized controller is effective for hovering and low-speed flight condition. <B>Practical implications</B> - This work provides an efficient hovering/low-speed autonomous helicopter flight control required in many civilian UAV applications such as aerial surveillance and photography. <B>Originality/value</B> - The paper addresses the challenges of controlling a small-scale helicopter during hover with inherent modelling uncertainties and disturbances.

      • Numerical analysis of PBG via structures using FDTD algorithm

        Tong, Ming-Sze,Chen, Yinchao,Lu, Yilong,Kim, Hyeong-Seok,Chang, Tae-Gyu,Sauleau, Ronan Emerald Group Publishing Limited 2006 Microelectronics international Vol.23 No.1

        <B>Purpose</B> ? To study the photonic band-gap (PBG) characteristics constructed by periodic conducting vias on various guided transmission-line structures. <B>Design/methodology/approach</B> ? The finite difference time domain (FDTD) method is adopted to analyze various PBG via structures. Conventionally, PBG characteristics on guided-wave structures, such as microstrip lines or coplanar waveguides (CPW), are constructed through a series of perforations on the ground plane(s). PBG characteristics can, however, also be realized through periodic arrangements of conducting vias located on the respective ground planes. <B>Findings</B> ? Through studies of the scattering parameters, it has been found that all analyzed PBG via structures exhibit strong band-gap characteristics in a particular frequency range. Different harmonic patterns are also observed when the dimensional sizes of the conducting vias vary with respect to the PBG period. <B>Research limitations/implications</B> ? Research has been mainly limited to study solely the PBG via structures, guided-wave transmission lines. More studies may be conducted in analyzing the overall performance when they are combined with other microwave components. <B>Practical implications</B> ? The proposed PBG via structures can be applied to various microwave areas, ranging from signal suppressions in microelectronics and mobile communications, to electro-magnetic interference studies in other practical electronic circuit structures. <B>Originality/value</B> ? The ideas of applying conducting vias on the guided-wave transmission lines and the proposed via patterns to induce the PBG characteristics are the research's claim to originality one.

      • RFID implementation strategy: perceived risks and organizational fits

        Lim, Se Hun,Koh, Chang E. Emerald Group Publishing Limited 2009 INDUSTRIAL MANAGEMENT & DATA SYSTEMS - Vol.109 No.8

        <B>Purpose</B> - The purpose of this paper is to investigate how organizations perceive the impact of radio frequency identification (RFID) on business performance in relation to the perceived technology-organization fit and the perceived risk of the technology. <B>Design/methodology/approach</B> - A survey is conducted with professionals involved in RFID implementation initiatives in their organizations. The survey results in usable responses from 350 firms. The survey instrument consists of questions for demographics, organizational fit factors, risk factors, and expected performance measures. <B>Findings</B> - The results suggest that management of organizational fit factors in connection with perceived risk levels has a significant effect on the perceived impact of RFID on business performance. <B>Research limitations/implications</B> - The sampling process is not completely scientific and random. As a result, some findings may not be applicable to the general population. Another limitation of the paper is that most research constructs and variables measure perceptions and expectations of respondents rather than objective, factual data. <B>Practical implications</B> - This paper identifies several organizational factors that the company must assess prior to implementing RFID to ensure that the technology is properly aligned with its business. This paper should also help managers better understand various risk issues associated with RFID. <B>Originality/value</B> - Few studies have systematically looked into these organizational and risk factors for successful RFID implementation. This empirical study should make a significant contribution for the research and practitioner communities by systematically and empirically investigate organizational and risk factors for adopting RFID and their impact on business performance.

      • Multiple-hypothesis RAIM algorithm with an RRAIM concept

        Yun, Ho,Kee, Changdon Emerald Group Publishing Limited 2013 Aircraft engineering and aerospace technology Vol.86 No.1

        <B>Purpose</B> - This paper aims to develop and analyse a new multiple-hypothesis receiver autonomous integrity monitoring (RAIM) algorithm. The proposed algorithm can handle simultaneous multiple failures as well as a single failure. <B>Design/methodology/approach</B> - The proposed algorithm uses measurement residuals and satellite observation matrices of several consecutive epochs for failure detection and exclusion. It detects failures by monitoring the error vector itself instead of monitoring the projection of the error vector. The algorithm reduces the minimum detectable bias via the relative receiver autonomous integrity monitoring (RRAIM) scheme. <B>Findings</B> - The algorithm is able to detect any instance of multiple failures, including failures that are not detected by the conventional RAIM algorithm. It is able to detect multiple failures with magnitudes of several tens of meters, although the algorithm has to solve an ill-conditioning problem. The detection capability of the proposed algorithm is not dependent on satellite geometry. <B>Research limitations/implications</B> - The algorithm assumes that the error vectors in three consecutive epochs have biases of similar magnitude. As a result, although the algorithm detects occurrences of drifting error, it cannot identify which measurement(s) has the critical error. <B>Practical implications</B> - The paper includes implications for the development of the RAIM algorithm for aviation users. Especially, it can be a candidate for future standard architecture in multiple constellations, multiple frequency satellite-based augmentation system (SBAS) users. <B>Originality/value</B> - The paper proposes a new multiple-hypothesis RAIM algorithm with an RRAIM concept. A detailed explanation of the algorithms, including rigorous mathematical expressions, is presented. The paper also includes an analysis of differences in detection capability between conventional algorithm and the proposed algorithm depending on satellite geometry.

      • Analysis of human body surface shape using parametric design method

        Emerald Group Publishing Limited 2015 INTERNATIONAL JOURNAL OF CLOTHING SCIENCE AND TECH Vol.27 No.3

        <P><B>Purpose</B></P> <P> – The purpose of this paper is to analyze automation of body surface shape. </P> <P><B>Design/methodology/approach</B></P> <P> – Numerous body landmarks are detected automatically. Body surface can be subdivided into multiple patches in a consistent manner using parametric design method. </P> <P><B>Findings</B></P> <P> – Complex surface shape of various human bodies can be analyzed easily and consistently. </P> <P><B>Research limitations/implications</B></P> <P> – The proposed method may not be applicable for a body with the shape which significantly differs from that of an average body. </P> <P><B>Practical implications</B></P> <P> – This method can greatly reduce the time required to analyze the surface shape of a three dimensional body scan data. </P> <P><B>Originality/value</B></P> <P> – The analysis of body surface shape is one of the most important processes especially in designing close fitting garments. The parametric design of body surface patches will facilitate the analysis of numerous body scan data.</P>

      • Knowledge transfer in work practice: adoption and use of integrated information systems

        Lee, Sang M.,Lee, Zoonky,Lee, Jinyoul Emerald Group Publishing Limited 2007 INDUSTRIAL MANAGEMENT & DATA SYSTEMS - Vol.107 No.4

        <B>Purpose</B> - The purpose of this paper is to focus on the social context of enterprise resource planning (ERP) adoption and use within an organization, emphasizing a knowledge transfer perspective. This framework is investigated in terms of the conflicts and struggles between the best practices embedded in ERP modules and the interactions of users of the ERP system. <B>Design/methodology/approach</B> - A case study using grounded theory is applied with the rich and detailed interview process. This paper shows how to conduct grounded theory and how to interpret the individual level of analysis to organizational level impacts. <B>Findings</B> - This study analyzes how an organization adopts a unique information system provided by enterprise integration and also suggests the likely consequences of knowledge transfer between the organization perspective embedded in ERP and individual apprehension conceptualizing the mode of human interaction and the type of work practice. <B>Research limitations/implications</B> - This is a case study offering rich description of a theoretical framework of knowledge transfer. <B>Practical implications</B> - The results show how to guide organizational members in adoption and use of integrated information systems. <B>Originality/value</B> - This paper contributes to the work practice for knowledge transfer in the case of information systems integration.

      • A firm's post-adoption behavior: loyalty or switching costs?

        Park, Jun-Gi,Park, Kijun,Lee, Jungwoo Emerald Group Publishing Limited 2014 INDUSTRIAL MANAGEMENT & DATA SYSTEMS - Vol.114 No.2

        <B>Purpose</B> - This study aims to investigate the influences of loyalty and switching costs toward a firm's overall post-adoption behavior in using information system. <B>Design/methodology/approach</B> - A research model is developed around two constructs found in the literature - loyalty and switching costs - that are most critical in firms' decisions on continued use of the same IS service providing company. It is empirically tested using a survey of IT decision makers in total 102 companies in South Korea. Partial least squares method is used to assess the relationships specified in research model. <B>Findings</B> - The findings suggest that both loyalty and switching costs have positive influences on the continuous intention to use and the inattentiveness of alternatives. <B>Research limitations/implications</B> - Findings are based on a single point cross-sectional survey. To further investigate the continuance of specific IT service firms, triangulation will be necessary with longitudinal and qualitative data concerning the process of decision-making, including political and contractual situation. <B>Originality/value</B> - The study fills the research gap in studying post-adoption behavior at the firm level by empirically testing the duality of loyalty and switching costs.

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