Search results

The purpose of this paper is to consider a detailed investigation of transversal magnetic (TM) nonlinear magnetooptical integrated optical sensor. The sensitivities of two sensors are presented. The first sensor composed of a dielectric thin film surrounded by a lossless, nonmagnetic, isotropic cladding exhibiting a local Kerr‐like dielectric nonlinearity, and a magnetic substrate chosen to be an iron garnet. The second sensor is formed by exchanging the cladding and the substrate media of the first sensor. The homogenous sensitivities of both sensors are calculated as a function of the waveguide thickness and the effective refractive index. The effect of nonlinearity on the sensitivities for both sensors is investigated.

The homogenous sensitivities of both sensors are calculated as a function of the waveguide thickness and the effective refractive index. The effect of nonlinearity on the sensitivities for both sensors is investigated. Numerical calculations are performed using the Maple program.

It was found that the sensitivity for the first sensor sensitivity increases with nonlinearity. While the sensitivity for the second sensor is hardly affected by the change of nonlinearity. It was also found that the thickness of the guiding layer is a critical parameter for the sensitivity of the optical sensor with the optimum thickness being just above cut‐off in case of the first structure and at the cut‐off in the case of the second structure.

A detailed investigation of TM nonlinear magnetooptical integrated optical sensor is considered. The two proposed structures are used to investigate the parameters to get the optimal sensitivity, which is an important issue is the sensor design.

IN the less‐than‐a‐century in which children's literature has developed, many types of books have emerged, and perhaps one class—the moral story—has disappeared (or if not entirely so, at least it is cold‐shouldered by modern young people). But the new literature has not displaced the fairy tale, one of the oldest forms, and still a favourite of children with imagination. A volume which should be added to the home bookshelf alongside Andersen, Grimm and Perrault, is Christina Hole's recently reprinted collection of tales from many lands entitled Folk Tales of Many Nations (H. Joseph, 10/6). They are related in a pleasant, straightforward style which presents no difficulties, and they are just long enough to hold the attention of young readers. In Norwegian Fairy Tales (Muller, 5/−) G. Strindberg has chosen old traditional folk legends about trolls, hulders, and other fairy people, and she has illustrated them herself. The Golden Treasury of Fairy Tales (Gulliver, 6/−) contains abridged and retold versions of childhood favourites by the Brothers Grimm, Hans Andersen, Frances Browne, and others. On the production side, the printing is rather lifeless and badly spaced. An interesting collection of tales handed down from father to son in the remote parts of the Irish countryside has been made by Gerard Murphy in Tales from Ireland (Browne and Nolan, 7/6). The volume is attractively produced and illustrated and will appeal to rather older boys and girls. Tom Scarlett's The Gnome and the Fairy and other Stories (Muller, 6/−) is in the modern vein and recounts the adventures of everyday people with fairies, wizards, birds and animals. Hettie Roe's simple line drawings are almost too tempting for children with a box of crayons.

The purpose of this paper is to lay a current, research-based foundation for investigation of the concept of innovative price models and its connection to business models.

The design is composed of a structured literature review of articles on price models published in 22 journals during 42 years. This then serves as a base for a subsequent conceptual discussion about the foundation of innovative price models.

The literature review yields only very few results that are loosely scattered across various areas and mostly without any kind of deeper exploration of the concept of price models. The paper therefore goes on to conceptually explore some fundamental conditions that might influence or even determine price models. The final outcome of this exploration is the relation, intention, technology and environment (RITE) framework that is a meta-model for conceptualising innovative price models.

The literature review could include additional journals and areas, and empirical testing of the RITE framework as yet has been limited.

The RITE framework can be used by practitioners as a tool for investigating the potential and usefulness of developing the capability to handle innovative price models.

The RITE framework provides fundamental conditions, which influence, or even determine, how innovative price models are developed and applied.

This paper aims to identify a manufacturer’s abilities to develop, build, sell and deliver Internet of Things (IoT) services.

This paper is a qualitative comparative case method that uses multiple sources of data, including executive interviews and secondary data, to understand a manufacturer’s IoT capabilities.

Five strategic IoT capabilities were identified: digital business model development, scalable solution platform building, value selling, value delivery and business intelligence and measurement.

The main limitations are related to the qualitative research method applied. The results are applicable mainly to relatively large and global manufacturers.

Managers responsible for solution business development can apply the developed model to acquire and manage IoT specific resources, processes and capabilities.

Existing studies have not addressed the IoT-specific resources, processes and capabilities that manufacturers’ possess. This is one of the first studies to conceptualize how these capabilities are used.

The objective of this study is to investigate how country risk, different political actions from the government and bureaucratic behavior influence the activities in industry supply chains (SCs) in emerging markets. The main objective of this study is to investigate the influence of these external stakeholders’ elements to the demand-side and supply-side drivers and barriers for improving competitiveness of Ready-Made Garment (RMG) industry in the way of analyzing supply chain. Considering the phenomenon of recent change in the RMG business environment and the competitiveness issues this study uses the principles of stakeholder and resource dependence theory and aims to find out some factors which influence to make an efficient supply chain for improving competitiveness. The RMG industry of Bangladesh is the case application of this study. Following a positivist paradigm, this study adopts a two phase sequential mixed-method research design consisting of qualitative and quantitative approaches. A tentative research model is developed first based on extensive literature review. Qualitative field study is then carried out to fine tune the initial research model. Findings from the qualitative method are also used to develop measures and instruments for the next phase of quantitative method. A survey is carried out with sample of top and middle level executives of different garment companies of Dhaka city in Bangladesh and the collected quantitative data are analyzed by partial least square-based structural equation modeling. The findings support eight hypotheses. From the analysis the external stakeholders’ elements like bureaucratic behavior and country risk have significant influence to the barriers. From the internal stakeholders’ point of view the manufacturers’ and buyers’ drivers have significant influence on the competitiveness. Therefore, stakeholders need to take proper action to reduce the barriers and increase the drivers, as the drivers have positive influence to improve competitiveness.

This study has both theoretical and practical contributions. This study represents an important contribution to the theory by integrating two theoretical perceptions to identify factors of the RMG industry’s SC that affect the competitiveness of the RMG industry. This research study contributes to the understanding of both external and internal stakeholders of national and international perspectives in the RMG (textile and clothing) business. It combines the insights of stakeholder and resource dependence theories along with the concept of the SC in improving effectiveness. In a practical sense, this study certainly contributes to the Bangladeshi RMG industry. In accordance with the desire of the RMG manufacturers, the research has shown that some influential constructs of the RMG industry’s SC affect the competitiveness of the RMG industry. The outcome of the study is useful for various stakeholders of the Bangladeshi RMG industry sector ranging from the government to various private organizations. The applications of this study are extendable through further adaptation in other industries and various geographic contexts.

The purpose of this paper is to introduce the solution to two-phase flow in CO₂/brine system with salt precipitation by applying mixed hybrid finite element (MHFE) method to pressure equation and finite volume (FV) method to saturation equation. Mixed finite element method solves pressure and velocity in two subspaces while hybrid method is an extension of mixed method, where the Lagrange multiplier is added to the former in order to ensure the continuity from one element to the adjacent elements. The authors propose the modeling of salt precipitation using core flood experimental result and adapt to be applicable for numerical modeling.

The governing equations are discretized using Mixed Hybrid Finite Element-Finite Volume (MHFE-FV) method. This method has the feature of localized conservation which is attractive for application on heterogeneous porous media. In addition to this, the salt precipitation effect is modeled using the data from core flood experiment (Ott et al., 2011). The random data are linearized to obtain the relationship between salt precipitate and CO₂ saturation and implemented to the algorithm for two-phase flow in CO₂ and brine system.

The solution of MHFE-FV scheme has good agreement with the solution using implicit pressure and explicit saturation (IMPES) reported by Negara et al. (2011), with average error of 4.20 percent. Localized conservation is demonstrated in the case of randomized heterogeneous porous media where fingering effects are explicitly observed. Salt precipitation prediction using the proposed method is able to predict the decrement of porosity by 16.71 percent and permeability by 22.19 percent. This results in the decreased amount of CO₂ injected by 64.70 percent.

This paper presents the solution of two-phase flow in CO₂ brine system during CO₂ injection in saline aquifer using MHFE-FV method with the additional salt precipitation model obtained based on core flood experiment result.

A methodology to predict the salt precipitation based on CO₂ saturation.

Contribution to green house gas reduction.

The authors use MHFE-FV to solve hyperbolic PDE to obtain accurate results of CO₂ saturation, and subsequently use this to compute the salt precipitation.

The purpose of this paper is to show the innovative approach of manufacturing filigree and highly complex components by means of laser beam melting.

The paper describes the unique geometric freedom of the laser beam melting technology and its possibility of quick, tool‐less production of complex components allow the manufacturing of functionally superior components in a short time.

Principally concludes the following: additive manufacturing proved to give superior properties to the component compared to conventional manufacturing methods.

This study provides context for the development and manufacturing of an individual heat‐transfer component for an electric‐driven formula race car.

The materials and energy density of current electric vehicles (EV) battery technology means that the vehicles are heavier and have a shorter range in comparison to internal combustion engine vehicles (ICEV). Battery cost also means EVs are relatively expensive for the consumer, even with government incentives, and dependent on sometimes-rare resources being available. These factors also limit the applicability of battery-electric technologies to heavy-duty vehicles. However, a number of next generation technologies are under laboratory development which could radically change this situation. Using a follow-the-money methodology, the strategic innovations of companies and public institutions are examined. The chapter will review the potential for changes in resource inputs, higher-density batteries and cost reductions, considering options such as lithium-air, metal-air and solid-state technologies. The innovations outlined in these technologies are considered from an economic perspective, identifying their advantages and disadvantages in commercialisation. At the same time, innovations, and investments in infrastructure electrification (Electric Road Service) and battery exchange point with swapping technology will be also considered due their implications and contribution to solving battery-related challenges and shortcomings. It is concluded that only a joint investment in effort on technologies would allow the use of EVs to be extended to a broad public in terms both of users and geography.

This paper's purpose is to show how literary texts can be used as a source for gaining insights into social practices, including accounting. It aims to deepen our understanding of such social practices in their cultural, social, economic and political contexts by examining portrayals of business and accounting transactions and of reflections of social and economic concerns in two German novels set during a time of economic and political crisis, namely the Weimar Republic's hyperinflation period.

The paper analyses, against the historical, social and economic backgrounds of the inflation period, the novels' authors' social and political perspectives as reflected in the novels; the literary devices employed; the way in which the description of business and accounting matters aids our understanding of everyday inflation period transactions and underlying economic and social concerns; and the links made between accounting/business, money and inflation on the one hand, and morality and rationality on the other hand.

The paper finds that in this exceptional economic situation, the relationship between accounting and morality as explored by Maltby is reversed. The portrayal of (often unusual and creative) economic transactions is used to illustrate the lack of economic, legal and moral certainty experienced by individuals and to evoke and critique the damage caused by the hyperinflation on German society and on human relationships, including the commoditisation of all aspects of life and the resulting moral decline.

The paper contributes to the literature exploring the role of representations of business/accounting and finance in narrative fiction. The novels examined here provide an alternative means for observing, interpreting and critiquing social phenomena, specifically in a setting where financial considerations dominate human interaction and social relationships.

Surveys show that the results of top‐down oriented Business Process Reengineering projects often are to be questioned because of implementation problems due to internal resistance to change. Bottom‐up oriented Continuous Improvement projects on the other hand experience typically a lack of strategic orientation and do not necessarily improve the enterprise process system as a whole. The MOTION (MOdel for Transforming, Identifying and OptimiziNg core processes) approach developed in a European Union project provides a method to combine the strengths of the top‐down approach of business process reengineering with the advantages of the bottom‐up oriented continuous improvement process to create well balanced processes to meet customer requirements. The MOTION guidelines were developed by a consortium of European industrial companies and universities.