bluuebunny/crossref_metadata_2025_split huggingface dataset:
Advanced adaptive algorithms in 2D finite element method of higher order of accuracy
Authors: Karban Pavel , Mach František , Doležel Ivo 
Published: April 2013

PurposeThe paper presents the principal elements of automatic adaptivity built in our 2D software for monolithic solution of multiphysics problems based on a fully adaptive finite element method of higher order of accuracy. The adaptive techniques are illustrated by appropriate examples.Design/methodology/approachPresented are algorithms for realization of theh‐adaptivity,p‐adaptivity,hp‐adaptivity, creation of curvilinear elements for modelling general boundaries and interfaces. Indicated also is the possibility of combining triangular and quadrilateral elements (both classical and curved).FindingsThe presented higher‐order adaptive processes are reliable, robust and lead to a substantial reduction of the degrees of freedom in comparison with the techniques used in low‐order finite element methods. They allow solving examples that are by classical approaches either unsolvable or solvable at a cost of high memory and time of computation.Research limitations/implicationsThe adaptive processes described in the paper are still limited to 2D computations. Their computer implementation is highly nontrivial (every physical field in a multiphysics task is generally solved on a different mesh satisfying its specific features) and in 3D the number of possible adaptive steps is many times higher.Practical implicationsThe described adaptive techniques may represent a powerful tool for the monolithic solution of complex multiphysics problems.Originality/valueThe presented higher‐order adaptive approach of solution is shown to provide better results than the schemes implemented in professional codes based on low‐order finite element methods. Obtaining the results, moreover, requires less time and computer memory.
Exact and Physical‐Optics analysis of the electromagnetic scattering by an elliptic cone
Authors: Kijowski Michael , Klinkenbusch Ludger 
Published: April 2013

PurposeThe purpose of this paper is to compare exact and Physical‐Optics‐approximated results of the electromagnetic field scattered by a perfectly conducting semi‐infinite elliptic cone illuminated by a plane wave. The results are important for judging the reliability of Physical‐Optics based field estimations of electrically large environments which include tip‐like structures (e.g. airport scenarios).Design/methodology/approachThe spherical‐multipole analysis is applied to determine the exact total field outside a perfectly conducting semi‐infinite elliptic cone. The underlying boundary‐value problem is solved by a separation of variables of the Helmholtz equation in sphero‐conal coordinates leading to a two‐parametric eigenvalue problem with two coupled Lamé differential equations. The exact scattered far field is determined from the exact surface current on the cone using a bilinear expansion of the dyadic Green's function. The Physical‐Optics (PO) field is evaluated similarly starting from a surface current which is directly found from the incident magnetic field.FindingsThe diffraction coefficients of the exact scattered field and the PO scattered field are compared for different parameters (polarization and angle of incidence) of the plane wave. Reasonably well corresponding results are obtained for those angles of incidence of the plane wave where the entire cone is illuminated, otherwise the error of the PO approximation is increasing not just in the shadow region.Originality/valueIf carefully applied, the Physical‐Optics method can be useful and sufficient to obtain fields scattered by cone‐like structures.
Uniformity analysis of magnetic field in an electromagnetic cold crucible used for directional solidification
Authors: Yang Jieren , Chen Ruirun , Ding Hongsheng , Su Yanqing , Jingjie Guo , Huang Feng , Fu Hengzhi 
Published: April 2013

PurposeThe purpose of this paper is to introduce a numerical calculation method to study the uniformity of the magnetic field in a cold crucible used for directional solidification (DS) and provide information for designing a cold crucible that can induce a uniform magnetic field.Design/methodology/approachTo obtain the characteristics of the magnetic field in a cold crucible and its influence on the directional solidification processing, based on experimental verification, 3‐D finite element (FE) models with different crucible configuration‐elements and power parameters were established to study the uniformity of the magnetic field in a cold crucible. In addition, different TiAl ingots were directionally solidified with different cold crucibles, and the solid/liquid (S/L) interfaced were examined to investigate the effect of the magnetic field on the macrostructure of those ingots.FindingsThe uniformity of the magnetic field in a given domain can be quantitatively analyzed by statistical methods. Numerical calculation results showed that the uniformity of the magnetic field can be improved by optimizing the crucible configuration and adopting lower frequency. Better uniformity of the magnetic field in a cold crucible is beneficial to directional solidification.Originality/valueThe calculation of the uniformity of the magnetic field is proposed as a method for quantitative study of the distribution characteristics of the magnetic field in a cold crucible. The relationship between the S/L interfaces of TiAl ingots and the uniformity of the magnetic field is initially characterised; additionally, techniques for improving the uniformity of the magnetic field in a cold crucible are suggested.
Numerical investigation of a high order hybridizable discontinuous Galerkin method for 2d time‐harmonic Maxwell's equations
Authors: Li Liang , Lanteri Stéphane , Perrussel Ronan 
Published: April 2013

PurposeThis work is concerned with the development and the numerical investigation of a hybridizable discontinuous Galerkin (HDG) method for the simulation of two‐dimensional time‐harmonic electromagnetic wave propagation problems.Design/methodology/approachThe proposed HDG method for the discretization of the two‐dimensional transverse magnetic Maxwell equations relies on an arbitrary high order nodal interpolation of the electromagnetic field components and is formulated on triangular meshes. In the HDG method, an additional hybrid variable is introduced on the faces of the elements, with which the element‐wise (local) solutions can be defined. A so‐called conservativity condition is imposed on the numerical flux, which can be defined in terms of the hybrid variable, at the interface between neighbouring elements. The linear system of equations for the unknowns associated with the hybrid variable is solved here using a multifrontal sparse LU method. The formulation is given, and the relationship between the considered HDG method and a standard upwind flux‐based DG method is also examined.FindingsThe approximate solutions for both electric and magnetic fields converge with the optimal order of p+1 in L2 norm, when the interpolation order on every element and every interface is p and the sought solution is sufficiently regular. The presented numerical results show the effectiveness of the proposed HDG method, especially when compared with a classical upwind flux‐based DG method.Originality/valueThe work described here is a demonstration of the viability of a HDG formulation for solving the time‐harmonic Maxwell equations through a detailed numerical assessment of accuracy properties and computational performances.
Managing in‐store logistics: a fresh perspective on retail service
Authors: Bouzaabia Olfa , van Riel Allard C.R. , Semeijn Janjaap 
Published: April 2013

PurposeTraditional retailers still insist on using price, product, and promotion as sources of competitive advantage. This emphasis typically ignores the potential of in‐store logistics operations in the creation of customer value. A major objective of retail customers is to navigate the retail servicescape in an efficient, convenient, enjoyable and effective manner. In‐store logistics operations largely determine how and to what extent the customer may achieve this objective. However, customer‐perceived indicators of in‐store logistics performance, such as product returns, order information, opening hours, and product availability and accessibility, have been largely ignored in research on retail service. The purpose of this paper is to investigate the role of in‐store logistics in determining customer outcomes such as store image, satisfaction and loyalty intentions.Design/methodology/approachA model is developed based on extant research in the areas of logistics service quality, service logic, store image, and customer loyalty. To test the plausibility of the model, 200 supermarket customers were surveyed in an exploratory field study. Data were analyzed by means of structural equation modeling in SmartPLS.FindingsResults show that customers may derive a substantial share of their satisfaction from interactions with in‐store logistics operations. Customer‐perceived performance of these operations – an important element of the retail servicescape – influences customer satisfaction directly, but also through its influence on store image.Research limitations/implicationsIn‐store logistics dimensions were identified based on exploratory research. A more structured, theory‐driven approach, might yield further insight. Explained variance levels in the outcome variables point at unobserved influences. Future research into the drivers of retail experience satisfaction could further complete the picture.Originality/valueFrom a customer perspective, the paper investigates in‐store logistics performance and its effects on customer outcomes in a field study.
Implementing open source software to conform to national policy
Authors: Weilbach Lizette , Byrne Elaine 
Published: April 2013

PurposeThe purpose of this paper is to investigate the implementation process of an open source enterprise management system in the South African public sector. Change management was observed in relation to challenges and opportunities in the alignment of the internal organisational changes to the imperatives of the national Free and Open Source Software policy.Design/methodology/approachAn interpretive case study, using interviews, observation and document review was used.FindingsAlignment of the organisational environment, change management strategies and technology is required to address many of the “common” change management challenges. However, ICT policies are formed and adopted in a highly complex environment and have embedded property and power relations which impact the nature and direction of their implementation. In this case, one of the main challenges arose from the alignment of internal organisational change to a national policy, which did not seem to have the full support of the agency which was tasked with implementing it.Originality/valueMany of the challenges faced by the public sector department are commonly described in change management literature, such as inadequate consideration for the social context in which the change was to take place. What emerges from this paper is a caution that there is not a single voice within government and that in a multi‐levelled and multi‐sectoral institution, many different rationalities exist. The internal alignment of the divergent voices within government would be a prerequisite for the organisational environment, change management strategies and technology to be aligned.
Understanding the concept of care in cross‐cultural settings
Authors: Marin Kawamura Kristine 
Published: April 2013

PurposeThe purposes of this conceptual paper are fivefold: first, to present a resource definition of care in work organizations that allows business and its managers to reconnect human wealth with social progress and economic wealth in order to create a responsible, sustainable, and healthy world; second, to examine the sociological and feminist origins of care; third, to discuss identifiable qualities of care; also, to compare and contrast care with the knowledge resource; and then, to identify future research directions for care.Design/methodology/approachTheory development and literature review were carried out to present a conceptual definition of care.FindingsA definition of care is proposed: care is a universal construct and is inherent in all human beings; care is the core foundation, the core energy, of all human activity, work, and interaction; care may be seen as a socioeconomic resource that acts similar to the knowledge resource and may be built into organizational strategy, management, and leadership and serves as a measurable and trainable managerial capability; and care comprises identifiable qualities in individual, relational, and managerial decision‐making categories. This definition has important cross‐cultural implications and is valid for any culture, team, and organization.Research limitations/implicationsThis paper is conceptual in nature and lays the foundation for further research, which is outlined in the discussion. Follow‐on work should include case studies and other qualitative research methods as well as quantitative research methods to substantiate the definition with evidence.Practical implicationsIn this paper, the author proposes that care lies at the core of being human. Care energizes all human work activity and may be employed by leaders, managers, and strategists across all organizations and cultures to maximize human potential, integrate care with the wealth creation process, and create healthy, sustainable organizations. Care is proposed as a driver for economic success and human well‐being that can give rise to the next major transformation in business and thinking. The proposed care definition, and especially, its comparison to the knowledge resource, offers scholars and practitioners a new orientation to apply to the value creation process in organizations. Care can be seen as an essential aspect of management practice, organizational strategy, and socioeconomic transformation.Originality/valueThis paper offers a unique and profound definition of care. Care has never been studied or examined in terms of energy or socioeconomic resource before. It leverages the definition of care associated with ethics of care research and provides a broader and deeper means to energize and transform work environments, management practice, and organizational strategy.
Meaning, authority, rationality and care as MARCs of sustainable organisations
Authors: Westelius Alf , Westelius Ann‐Sofie , Brytting Tomas 
Published: April 2013

PurposeThe purpose of the article is to present MARC, a model for assessing – and improving – the health of organisations from a humanistic point of view.Design/methodology/approachThe model has been developed in an organisational development clinical research tradition. The validity of the model rests on logical reasoning grounded in organisational and salutogenic research, and on it appearing useful to clients and members in organisations where it has been employed.FindingsWhen using the MARC model to structure analyses and facilitate discussions in organisations that have sought aid, the model has helped reveal major sources of imbalance between its four aspects: meaning, authority, rationality and care. A major survey revealed no statistically significant differences between men and women. This indicates that the MARC concepts are general rather than gender‐specific. The results also contradicted the often stated notion that men emphasise “hard” aspects (A and R) while women emphasise “soft” ones (M and C).Originality/valueThe paper demonstrates that support for the importance of each of the four aspects – meaning, authority, rationality and care – as perspectives in analysing and understanding organisations can be found in the organisational research literature. The authors' contribution is to argue the case that they represent four important human needs that need to be attended to in balance in an organisation if cooperation between the individuals in the organisation is to be sustainable from a human‐centred perspective. MARC is designed to help visualise and focus this balance.
The pseudo‐panopticon: the illusion created by CSR‐related transparency and the internet
Authors: Timothy Coombs W. , Holladay Sherry J. 
Published: April 2013

PurposeThe purpose of this paper is to examine how corporate social responsibility (CSR) transparency claims are propagating a belief in a modern panopticon for ensuring responsible corporate behavior. Corporations use transparency claims to cultivate the impression of full disclosure. The paper aims to explore why people believe transparency ensures responsible behavior from corporations as well as the negative effects of this pseudo‐panopticon.Design/methodology/approachThe paper explores transparency in relation to CSR, CSR reporting, the internet, and activism and describes how their confluence produces pseudo‐panopticon.FindingsThe paper finds that the pseudo‐panopticon allows corporations to claim transparency in CSR communication and for stakeholders to accept that claim. The reality is that a minority of activist stakeholders bear the burden of ensuring true transparency by questioning disclosure.Social implicationsTransparency should be seen as a process, and it fails if activists cannot create public awareness of CSR shortcomings. The challenge is to find ways to make transparency as a process work in a world where apathy and self‐deception, in part facilitated by the pseudo‐panopticon, work against the process.Originality/valueThe paper builds on the process view of transparency by developing its implications for CSR communication. The result is a novel approach to CSR reporting and transparency that contributes to other critical voices concerned about the value and effects of CSR communication.
Advertising corporate social responsibility
Authors: Pomering Alan , Johnson Lester W. , Noble Gary 
Published: April 2013

PurposeThe purpose of this paper is to examine how social topic information (STI) and corporate social responsibility commitment (CSRC) substantiate the firm's CSR claims and promote message persuasion.Design/methodology/approachA 2×2 between‐subjects experimental design was used to examine the impact of STI and CSRC on output variables using an online sample of 176 participants in Australia.FindingsThe study found that manipulation of STI had a statistically significant impact on outcome variables, but that CSRC did not.Research limitations/implicationsThe study was limited to Australia and used a fictitious brand in the experiment.Practical implicationsFor marketing communications and brand managers, this study informs CSR‐based corporate image advertising.Social implicationsSupport for more socially responsible businesses through responsible consumption can potentially transform product attributes and markets. More effective CSR communication is critical to this response.Originality/valueTo date, no research has examined how consumer persuasion of CSR advertising claims might be enhanced using message variables. This study has implications for theory and practice for the effective communication of pro‐social achievements, and suggests further research areas.
Potentiality of polysilicon nanogap structure for label‐free biomolecular detection
Authors: Dhahi T.S. , Hashim U. , Ali M.E. 
Published: April 2013

PurposeThe purpose of this paper was to systematically study the electrical properties of 5‐, 42‐ and 75‐nm gap polysilicon structures to evaluate the potentiality of these structures to be used in biomolecular sensing devices.Design/methodology/approachThe authors previously reported the fabrication and morphological characterization of these structures. In this report, they electrically probed the presence of nanogap through current measurement. The effects of electrolytes on the capacitance profiles of these structures were systematically studied with air, water and various dilutions of phosphate buffer saline.FindingsAn increment in capacitance was found with the increment in electrolyte concentration. Improvement in current flow, capacitance, permittivity, and conductivity were observed with the smaller size nanogaps, suggesting their applications in low power consuming devices.Originality/valueSince nanogap‐based dielectric biosensing devices need to be operated with a low level of current to avoid biomolecular damage, these structures should have potential applications in dielectric‐based biomolecular detection using a low cost dielectric analyser.
Thick film screen printed environmental and chemical sensor array reference electrodes suitable for subterranean and subaqueous deployments
Authors: Atkinson J.K. , Glanc M. , Prakorbjanya M. , Sophocleous M. , Sion R.P. , Garcia‐Breijo E. 
Published: April 2013

PurposeThe purpose of this paper is to report thick film environmental and chemical sensor arrays designed for deployment in both subterranean and submerged aqueous applications.Design/methodology/approachVarious choices of materials for reference electrodes employed in these different applications have been evaluated and the responses of the different sensor types are compared and discussed.FindingsResults indicate that the choice of binder materials is critical to the production of sensors capable of medium term deployment (e.g. several days) as the binders not only affect the tradeoff between hydration time and drift but also have a significant bearing on device sensitivity and stability. Sensor calibration is shown to remain an issue with long‐term deployments (e.g. several weeks) but this can be ameliorated in the medium term with the use of novel device fabrication and packaging techniques.Originality/valueThe reported results indicate that is possible through careful choice of materials and fabrication methods to achieve near stable thick film reference electrodes that are suitable for use in solid state chemical sensors in a variety of different application areas.
Which cultural values matter to business process management?
Authors: Schmiedel Theresa , vom Brocke Jan , Recker Jan 
Published: April 2013

PurposeBusiness process management (BPM) requires a holistic perspective that includes managing the culture of an organization to achieve objectives of efficient and effective business processes. Still, the specifics of a BPM‐supportive organizational culture have not been examined so far. Thus, the purpose of this paper is to identify the characteristics of a cultural setting supportive of BPM objectives.Design/methodology/approachThe paper examines the constituent values of a BPM‐supportive cultural setting through a global Delphi study with BPM experts from academia and practice and explore these values in a cultural value framework.FindingsThe paper empirically identifies and defines four key cultural values supporting BPM, viz., customer orientation, excellence, responsibility, and teamwork. The paper discusses the relationships between these values and identifies a particular challenge in managing these seemingly competing values.Research limitations/implicationsThe identification and definition of these values represents a first step towards the operationalization (and empirical analysis) of what has been identified as the concept of BPM culture, i.e. a culture supportive of achieving BPM objectives.Practical implicationsIdentifying these cultural values provides the basis for developing an instrument that can measure how far an existing cultural context is supportive of BPM. This, in turn, is fundamental for identifying measures towards achieving a BPM culture as a necessary, yet not sufficient means to obtain BPM success.Originality/valueThe paper examines which cultural values create an environment receptive for BPM and, thus, specifies the important theoretical construct BPM culture. In addition, the paper raises awareness for realizing these values in a BPM context.