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1 – 10 of 592Haris Hameed Mian and Hammad Rahman
Filament wound pressure vessels have a characteristic pattern observed in their helical layers. These are mosaic‐shaped patterns and affect the layer structural behavior. The…
Abstract
Purpose
Filament wound pressure vessels have a characteristic pattern observed in their helical layers. These are mosaic‐shaped patterns and affect the layer structural behavior. The present research aims to focus on the influence of mosaic patterns on stress‐strain field and structural design of thin‐walled internally pressurized filament wound pressure vessel. The widely used stress analysis procedures and the commercially available finite element tools usually neglect the effect of the mosaic patterns. The present work seeks to deal with the modeling and stress analysis of complete pressure vessel, incorporating mosaic patterns.
Design/methodology/approach
The incorporation of the mosaic effect provides more realistic modeling of the real stress distribution and the stress values compared to the conventional analyses (the effect would depend on the shell structure, i.e. number of plies, relative thicknesses, etc.). The structural analysis is performed using commercial finite element analysis (FEA) tools ANSYS.
Findings
The comparison of results of analytical solution and conventional FEA provides close values of the stresses in the plies. As for the stress and strain distributions obtained by incorporating the effect of mosaic patterns are considerably different. The distribution of the stress and strain fields are not uniform along the length of the vessel and along its circumference and the maximum stresses acting in the direction of the fibers are higher than those calculated using conventional FEA techniques.
Originality/value
Previous work was limited to composite cylindrical shells, without incorporating the end domes. The present work deals with the modeling and stress analysis of complete pressure vessel, incorporating mosaic patterns.
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Cataldo Zuccaro and Martin Savard
The objective of this paper is to present and discuss the development of a transaction‐based model for segmenting users of internet banking. It aims to employ a random sample of…
Abstract
Purpose
The objective of this paper is to present and discuss the development of a transaction‐based model for segmenting users of internet banking. It aims to employ a random sample of clients of a large Canadian bank in generating the hybrid segments.
Design/methodology/approach
The basic transactional profile of the bank's clients was merged with Mosaic's financial segments contained in the Generation5 database. A random sample of 3 percent of a large Canadian chartered bank's clients was drawn from its transaction database. The transaction database employed contains clients from Quebec and the Maritime provinces. The sampling frame consisted of close to one million clients. Two‐step cluster analysis was employed to generate the transaction segment and later merged with the Mosaic financial segment to produce hybrid segments.
Findings
Two‐step cluster analysis identified four generic transaction segments which, when cross‐tabulated with the Mosaic financial segments, produced highly stable and interpretable segments. These hybrid segments are clearly superior to conventional life style or psychographic segments produced by classical segmentation methodologies.
Practical implications
The results of this study clearly demonstrate the functional and analytical superiority of hybrid customer segments. Hybrid segmentation, by cross‐tabulating transaction and Mosaic's financial segments, provides banks and financial institutions with superior strategic insights in customer understanding, customer segmentation, customer communication, customer prospecting and targeting.
Originality/value
This paper is the first to present, explain and to demonstrate the nature and the operational procedure to develop hybrid customer/client segments. More importantly, it is the first that goes beyond conventional approaches to segmenting banks' clients who engage in internet banking by integrating clients' transaction profiles and Mosaic financial segments. The resulting hybrid segments are radically different than the conventional, one‐dimensional segments produced by conventional cluster‐based segmentation.
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Slavik Jablan and Ljiljana Radović
The purpose of this paper is to consider the history of certain modular elements: Truchet tiles, Op‐tiles, Kufic tiles, and key‐patterns, which occur as ornamental archetypes from…
Abstract
Purpose
The purpose of this paper is to consider the history of certain modular elements: Truchet tiles, Op‐tiles, Kufic tiles, and key‐patterns, which occur as ornamental archetypes from Paleolithic times until the present. The appearance of the same ornamental archetypes at the same level of the development in different cultures, distant in space and time can be described from the cybernetics point of view as a specific kind of self‐referential systems or cellular automata present in the intellectual and cultural development of mankind. The aim of this research is to show a continuity of the development of ornamental structures based on modular elements used as ornamental archetypes.
Design/methodology/approach
Research of the material from archaeological findings, history of art, painting, architecture, and applied arts.
Findings
Existence of universal geometrical construction principles based on modularity.
Practical implications
Creation of new patterns or designs (e.g. TeX‐fonts, tiles, etc.) based on modularity.
Originality/value
The paper presents a new explanation of constructions of labyrinths and different Islamic patterns.
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C. Edward Wall, Timothy W. Cole and Michelle M. Kazmer
During 1994, Pierian Press began experimenting with the integration of the concepts and respective strengths of both Standard Generalized Markup Language (SGML) and MARC. These…
Abstract
During 1994, Pierian Press began experimenting with the integration of the concepts and respective strengths of both Standard Generalized Markup Language (SGML) and MARC. These experiments were driven by pragmatism and self‐interest. Pierian Press publishes classified, analytical bibliographies—classical knowledge constructs—which the press and its authors would like to make available for loading on local library systems so that they can function as “maps” unto that subset of literature the respective bibliographies encompass.
Clive Beed and Cara Beed
Distributional issues have re‐emerged as an important issue in economics, social science, and philosophy in the last few decades. In the same period, the relevance of derivative…
Abstract
Distributional issues have re‐emerged as an important issue in economics, social science, and philosophy in the last few decades. In the same period, the relevance of derivative Judeo‐Christian socio‐economic principles to the contemporary world has been (re)asserted, developing an incipient Judeo‐Christian economics. Methodologically, this undertaking is comparable to that underlying the evolution of Islamic and other forms of religious economics. The methodology employed in the Judeo‐Christian undertaking is described via a worked example. The example shows how normative principles can be derived from Judeo‐Christian thought allegedly relevant to shaping the contemporary distribution of wealth and income. The principles are deduced from a particular sub‐set of Judeo‐Christian source material, and have the effect of generating greater equity in economic distribution. The deductions are compared with selected ideas canvassed in recent economics' discussion about inequitable distribution concerning appropriate criteria for guiding redistributional policy, ideas of “equal opportunity” vs “equal outcomes”, and the relation between distribution and economic growth.
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David Tonks and Marc Farr
The general context for this paper is access to higher education (HE) in the UK but the particular concern is participation. An important distinction is drawn between access and…
Abstract
The general context for this paper is access to higher education (HE) in the UK but the particular concern is participation. An important distinction is drawn between access and participation. The heterogeneous characteristics of HE and the complex choice processes of applicants mean that a finer level of description and analysis is required which goes beyond aggregate measures of access and examines the extent and the nature of participation. Equality of opportunity provides the underpinning for this paper, access to HE is the starting point, the focus is on participation and the approach is empirical and pragmatic. In 2002, the target for access to UK HE was set at 50 percent, which requires attention to shift from broad measures of access towards detailed measures of participation; particularly when the agenda is one of social inclusion, and when certain groups within society are still significantly under‐represented and disadvantaged at the level of participation.
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Per Nikolaj Bukh and Christian Nielsen
The purpose of this paper is to study the role of strategic information in the process of analyzing and understanding a specific company. Special emphasis is given to how…
Abstract
Purpose
The purpose of this paper is to study the role of strategic information in the process of analyzing and understanding a specific company. Special emphasis is given to how forward‐looking information becomes important in relation to establishing a perception of market value by financial sell‐side analysts.
Design/methodology/approach
The empirical part of the paper is based on semi‐structured interviews with financial analysts, fund managers, and the top management team from a large medical device company listed on a Scandinavian Stock Exchange. The case company is internationally renowned for its state‐of‐the‐art business reporting.
Findings
It is shown how the three parties produce and consume strategic information and apply it in the process of analyzing and understanding the company and how strategic information plays markedly different roles across the groups participating in the market for information. It was specifically found that understanding the stock price and the company were two distinctly different issues. While management and the long‐term oriented sell‐side analysts' interests related to the company, fund managers and so‐called trigger‐oriented sell‐side analysts were primarily concerned with predicting the stock price.
Research limitations/implications
This study motivates for a more nuanced understanding of how strategic information is applied in investment decisions, thereby extending existing research. As the case company is considered a best practice case, there are limitations to its generalizability.
Practical implications
The results of this study may help companies in their quest for creating transparency around their business model and how to address the different informational needs of the capital market.
Originality/value
This study provides new insights to further the understanding of how information is moved into investment decisions and thus may form the basis of further studies into this field.
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Zhangxin Guo, Zhonggui Li, Junjie Cui, Yongcun Li and Yunbo Luan
The purpose of this paper is to present a finite element analysis (FEA) of filament-wound composites, as well as application of these materials.
Abstract
Purpose
The purpose of this paper is to present a finite element analysis (FEA) of filament-wound composites, as well as application of these materials.
Design/methodology/approach
In this paper, a new finite element method of filament-wound composite is presented. The stress and strain fields in the composite cylinders are analyzed using the ABAQUS software packages for considering the filament undulation and crossover. The paper presented results of buckling load of composite cylinders with different types of filament-winding patterns.
Findings
The result of the example shows that the stress distributions are uniform along the cylinder length and around the circumference when the analytical approach is based on the conventional FEA. The stress distributions are not uniform along the cylinder length and around the circumference for considering the filament undulation and crossover. The stress units are arranged in a regular geometric pattern around circumference and along the axis of rotation. The analysis of the effect of filament-winding mosaic patterns on the mechanical characteristics of composite cylindrical is presented in the paper.
Originality/value
The stress and strain fields in the composite cylinders were analyzed for considering the filament undulation and crossover. The buckling load of composite cylinders with different types of filament-winding patterns was presented in this paper.
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Hussein J. Hejase and Hassana Tabch
The purpose of this paper is to closely assess the level of business ethics education in one of the Lebanese educational institutions, namely the American University of Science…
Abstract
Purpose
The purpose of this paper is to closely assess the level of business ethics education in one of the Lebanese educational institutions, namely the American University of Science and Technology (AUST) through shedding light on how the Faculty of Business and Economics' curriculum is set to meet the national and regional markets' requirements of sound business education.
Design/methodology/approach
Descriptive, analytical and statistical analyses are used in this study.
Findings
The study reveals several factors that affect business ethics education at AUST, namely students' ethics literacy and ethical perceptions, students' attitudes towards ethical issues, ethics and personal actions, personal morality, religious and ethical business conducts. This is in addition to the impact of formal business ethics education as implemented in the university's curriculum.
Research limitations/implications
Several insights could be inferred from this study. First, business ethics could be taught if a comprehensive formal and purposeful direction exists in an institution to make students internalize their perception of business ethics. Accordingly, the Faculty of Business and Economics is recommended to provide formal coverage of an ethics chapter in all business fields, and objectively expose the differences in applications as related to culture and national preferences; and third, reinforce the use of case studies on ethics dilemmas and make such studies obligatory for all majors. Another insight that is considered an important outcome of the study is its academic contribution to the few publications found on the subject matter in Lebanon and the region. Its results can be used by Middle Eastern educational institutions to analyze the reported western ethics' know how and practices and perform a series of research projects to address the differences between these two cultures in perception, applicability, sensitivity to beliefs and their influence on the way business is conducted in Lebanon and the surrounding Arab nations. Finally, this paper is an eye opener to the fact that individual's religious entity and beliefs may make a difference in the formation of ethical judgment and decision making. However, further research studies on the latter issue is needed, knowing that Lebanon is considered a mosaic religious community with 18 different official religions.
Practical implications
The findings presented in this research can be used by Middle Eastern as well as by Western academicians, managers, employees, and students as an eye opener to the implications of business ethics education on decision making.
Originality/value
The paper adds to the minimal body of knowledge of business ethics education in the Middle East; and its findings constitute a catalyst for further research on how ethics education enhances students' future decision making in the real world.
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M. McCord, P.T. Davis, M. Haran, D. McIlhatton and J. McCord
Accounting for locational effects in determining price is of fundamental importance. The demise of the mainstream property market has culminated in increasing appetite and…
Abstract
Purpose
Accounting for locational effects in determining price is of fundamental importance. The demise of the mainstream property market has culminated in increasing appetite and investment activity within the private rental sector. The primary purpose of this paper aims to analyse the local variation and spatial heterogeneity in residential rental prices in a large urban market in the UK using various geo-statistical approaches.
Design/methodology/approach
Applying achieved price data derived from a leading internet-based rental agency for Belfast Northern Ireland is analysed in a number of spatially based modelling frameworks encompassing more traditional approaches such as hedonic regressive models to more complex spatial filtering methods to estimate rental values as a function of the properties implicit characteristics and spatial measures.
Findings
The principal findings show the efficacy of the geographically weighted regression (GWR) technique as it provides increased accuracy in predicting marginal price estimates relative to other spatial techniques. The results reveal complex spatial non-stationarity across the Belfast metropole emphasizing the premise of location in determining and understanding rental market performance. A key finding emanating from the research is that the high level of segmentation across localised pockets of the Belfast market, as a consequence of socio-political conflict and ethno-religious territoriality segregation, requires further analytical insight and model specification in order to understand the exogenous spatial and societal effects/implications for rental value.
Originality/value
This study is one of only a few investigations of spatial residential rent price variation applying the GWR methodology, spatial filtering and other spatial techniques within the confines of a UK housing market. In the context of residential rent prices, the research highlights that a soft segmentation modelling approaches are essential for understanding rental gradients in a polarised ethnocratic city.
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