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1 – 10 of over 2000
Article
Publication date: 1 August 1998

Jaroslav Mackerle

This paper gives a review of the finite element techniques (FE) applied in the area of material processing. The latest trends in metal forming, non‐metal forming, powder…

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Abstract

This paper gives a review of the finite element techniques (FE) applied in the area of material processing. The latest trends in metal forming, non‐metal forming, powder metallurgy and composite material processing are briefly discussed. The range of applications of finite elements on these subjects is extremely wide and cannot be presented in a single paper; therefore the aim of the paper is to give FE researchers/users only an encyclopaedic view of the different possibilities that exist today in the various fields mentioned above. An appendix included at the end of the paper presents a bibliography on finite element applications in material processing for 1994‐1996, where 1,370 references are listed. This bibliography is an updating of the paper written by Brannberg and Mackerle which has been published in Engineering Computations, Vol. 11 No. 5, 1994, pp. 413‐55.

Details

Engineering Computations, vol. 15 no. 5
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 1 August 2003

Krishna M. Singh and Masataka Tanaka

This paper presents an application of the dual reciprocity boundary element method (DRBEM) to transient advection‐diffusion problems. Radial basis functions and augmented thin…

Abstract

This paper presents an application of the dual reciprocity boundary element method (DRBEM) to transient advection‐diffusion problems. Radial basis functions and augmented thin plate splines (TPS) have been used as coordinate functions in DRBEM approximation in addition to the ones previously used in the literature. Linear multistep methods have been used for time integration of differential algebraic boundary element system. Numerical results are presented for the standard test problem of advection‐diffusion of a sharp front. Use of TPS yields the most accurate results. Further, considerable damping is seen in the results with one step backward difference method, whereas higher order methods produce perceptible numerical dispersion for advection‐dominated problems.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 13 no. 5
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 1 June 2003

A.A. Tseng, M. Tanaka, B. Leeladharan and Jong G. Choi

A laser‐based system has been developed to automatically measure complete inner profiles of various structures. The system uses a pointed laser source passing through a rotating…

Abstract

A laser‐based system has been developed to automatically measure complete inner profiles of various structures. The system uses a pointed laser source passing through a rotating optical device to obtain a series of distance measurements. To enhance the portability of the system, a hand‐held computer is selected to control the laser source and the rotating optical device. In addition to system control, the software associated with the handheld computer has also been developed to use the series distance measurements to construct a complete profile of the measured structure as well as to estimate the crosssectional area of the profile. The system can provide critical information for the construction industry and a variety of other commercial applications. The evaluation and analysis of measurement indicated that on accuracy within 4 per cent, for typical window designs and floor patterns, could be achieved. Recommendations for improvement of the system have also been included.

Article
Publication date: 1 March 2001

A.A. Tseng and M. Tanaka

Two newly invented deposition techniques for the freeform fabrication of metal and ceramic parts are presented. The first deposition technique studied is one that can deposit…

1075

Abstract

Two newly invented deposition techniques for the freeform fabrication of metal and ceramic parts are presented. The first deposition technique studied is one that can deposit variable sizes of filaments in a controlled manner. The second technique consists of layer deposition using an adjustable planar nozzle to generate layers directly. Laboratory scale apparatus has been built to study the behavior of filament and layer formation of these two techniques. Experiments are conducted in typical operation ranges. Analytical solutions are also developed to parametrically study the effects of changing major operational parameters as well as to provide necessary information for designing the apparatus. All results indicate that the analytical predictions agree very well with the experimental observation. Finally, recommendations on the future development of these two techniques are given.

Details

Rapid Prototyping Journal, vol. 7 no. 1
Type: Research Article
ISSN: 1355-2546

Keywords

Book part
Publication date: 10 August 2023

Jerome V. Cleofas and Ryan Michael F. Oducado

The 2019 coronavirus disease (COVID-19) pandemic has profoundly affected family and school life. Evidence demonstrates how pandemic-induced online learning and home confinement…

Abstract

The 2019 coronavirus disease (COVID-19) pandemic has profoundly affected family and school life. Evidence demonstrates how pandemic-induced online learning and home confinement can influence family dynamics and, consequently, students’ mental health and quality of life. This chapter extends the literature by building upon the perspective of family systems theory and focusing the analysis on graduate students who are underrepresented in COVID-19 research. Drawing from an online survey among 337 graduate students enrolled in a state university in the Philippines during the second year of the pandemic, this study examines the three family relationship domains (cohesion, expressiveness, and conflict), their predictive relationships with life satisfaction, and the mediating role of mental well-being on these relationships. Findings indicate favorable levels of cohesion, expressiveness, and conflict in the family. Respondents’ age, sex assigned at birth, and marital status were significantly correlated with at least one domain of family relationship. Cohesion and expressiveness yielded significant positive predictive relationships on mental well-being and life satisfaction. Furthermore, findings indicate the partial mediation of mental well-being on the relationship between cohesion and life satisfaction and full mediation on expressiveness and life satisfaction.

Details

Resilience and Familism: The Dynamic Nature of Families in the Philippines
Type: Book
ISBN: 978-1-80455-414-2

Keywords

Book part
Publication date: 20 October 2015

Mohammad Shamsuddoha

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from unstructured…

Abstract

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from unstructured supply chain practices, lack of awareness of the implications of the sustainability concept and failure to recycle poultry wastes. The current research thus attempts to develop an integrated supply chain model in the context of poultry industry in Bangladesh. The study considers both sustainability and supply chain issues in order to incorporate them in the poultry supply chain. By placing the forward and reverse supply chains in a single framework, existing problems can be resolved to gain economic, social and environmental benefits, which will be more sustainable than the present practices.

The theoretical underpinning of this research is ‘sustainability’ and the ‘supply chain processes’ in order to examine possible improvements in the poultry production process along with waste management. The research adopts the positivist paradigm and ‘design science’ methods with the support of system dynamics (SD) and the case study methods. Initially, a mental model is developed followed by the causal loop diagram based on in-depth interviews, focus group discussions and observation techniques. The causal model helps to understand the linkages between the associated variables for each issue. Finally, the causal loop diagram is transformed into a stock and flow (quantitative) model, which is a prerequisite for SD-based simulation modelling. A decision support system (DSS) is then developed to analyse the complex decision-making process along the supply chains.

The findings reveal that integration of the supply chain can bring economic, social and environmental sustainability along with a structured production process. It is also observed that the poultry industry can apply the model outcomes in the real-life practices with minor adjustments. This present research has both theoretical and practical implications. The proposed model’s unique characteristics in mitigating the existing problems are supported by the sustainability and supply chain theories. As for practical implications, the poultry industry in Bangladesh can follow the proposed supply chain structure (as par the research model) and test various policies via simulation prior to its application. Positive outcomes of the simulation study may provide enough confidence to implement the desired changes within the industry and their supply chain networks.

Details

Sustaining Competitive Advantage Via Business Intelligence, Knowledge Management, and System Dynamics
Type: Book
ISBN: 978-1-78560-707-3

Keywords

Book part
Publication date: 27 August 2014

Damian Tago, Henrik Andersson and Nicolas Treich

This study contributes to the understanding of the health effects of pesticides exposure and of how pesticides have been and should be regulated.

Abstract

Purpose

This study contributes to the understanding of the health effects of pesticides exposure and of how pesticides have been and should be regulated.

Design/methodology/approach

This study presents literature reviews for the period 2000–2013 on (i) the health effects of pesticides and on (ii) preference valuation of health risks related to pesticides, as well as a discussion of the role of benefit-cost analysis applied to pesticide regulatory measures.

Findings

This study indicates that the health literature has focused on individuals with direct exposure to pesticides, i.e. farmers, while the literature on preference valuation has focused on those with indirect exposure, i.e. consumers. The discussion highlights the need to clarify the rationale for regulating pesticides, the role of risk perceptions in benefit-cost analysis, and the importance of inter-disciplinary research in this area.

Originality/value

This study relates findings of different disciplines (health, economics, public policy) regarding pesticides, and identifies gaps for future research.

Details

Preference Measurement in Health
Type: Book
ISBN: 978-1-78441-029-2

Keywords

Book part
Publication date: 10 August 2023

Jerome V. Cleofas and Dennis Erasga

Stigma remains to be a major barrier to addressing the sustained rise of human immunodeficiency virus (HIV) infections in the Philippines. Gay, bisexual, and other men who have…

Abstract

Stigma remains to be a major barrier to addressing the sustained rise of human immunodeficiency virus (HIV) infections in the Philippines. Gay, bisexual, and other men who have sex with other men (MSMs) (G/B/MSM) living with HIV experience compounded stigma due to their sexual identity and HIV seropositive status. The family has been identified as one of the main sources of homonegativity and HIV-related discrimination. Drawing from the family life histories of 31 Filipino MSMs living with HIV, the authors demonstrate the concept of compounding stigma, which posits that the extent and nature of gender- and sexuality-based stigma experienced in early life may potentiate or mitigate the experience of HIV stigma in later life in the context of the family. Narrative analysis of the family life histories reveals a central factor that shaped the sexual development and stigma experiences of MSMs living with HIV: sexual identity visibility in the family (SIVF) – the family’s extent of knowledge and/or acceptance of their sexuality. Three core narratives emerged from the data that categorize informants based on the type of SIVF present in their family life viz. full, partial, and invisible. Results also trace the resultant life trajectories for each core narrative and reveal three forms of compounding stigma: low compounding stigma or compounding acceptance, compounding enacted stigma, and compounding internalized stigma.

Details

Resilience and Familism: The Dynamic Nature of Families in the Philippines
Type: Book
ISBN: 978-1-80455-414-2

Keywords

Book part
Publication date: 4 December 2023

Rajeshwari Krishnamurthy and Garima Sahay

In this chapter, the authors aimed to analyze the existing sustainability curriculum being followed by higher education institutions (HEIs) in the emerging world, and call out the…

Abstract

In this chapter, the authors aimed to analyze the existing sustainability curriculum being followed by higher education institutions (HEIs) in the emerging world, and call out the underlying inadequacies within it and provide solutions for the same, by drawing insights through interviews with key stakeholders in this area. The authors planned to talk to higher education policymakers, Educational Institutional heads, researchers and faculty members and corporates (who deal in sustainable products and who will benefit from this subject). The respondents’ sample consisted of both Indian and international interviewees to help us better understand and analyze the perspective and scenario globally in terms of north-south as well as understand multiple point of views. The interview analyses were carried out using the N Vivo software tool. The expected outcome includes a curriculum contour on sustainability for the HEIs.

Details

Higher Education for the Sustainable Development Goals: Bridging the Global North and South
Type: Book
ISBN: 978-1-80382-526-7

Keywords

Open Access
Book part
Publication date: 12 October 2022

Gavan Patrick Gray

Japan is home to a relatively conservative and group-oriented culture in which social expectations can exert powerful pressure to conform to traditional patterns of behaviour…

Abstract

Japan is home to a relatively conservative and group-oriented culture in which social expectations can exert powerful pressure to conform to traditional patterns of behaviour. This includes gender norms, which have long been based around the common stereotypes of men as breadwinners and women as housewives. Social liberalisation and economic change in the late 20th century saw these patterns change as more women entered the workforce and, despite Japan's dismal standing in global equality rankings, began to make inroads into some positions of political and corporate leadership. Yet, the way in which women are treated by men is shaped not only by female gender norms but also by the social factors that determine male patterns of behaviour. This chapter considers how Japan's male gender norms, particularly the focus on man as economic labourers rather than active members of the family unit, have damaged many men's ability to connect, on an emotional level, with the women in their lives. It looks at the issue of misogyny; what is known as the Lolita Complex; the growing trend of herbivore men; and the concept of Ikumen, men who are active within the family. While some of these patterns of behaviour can be harmful – for women on the individual level, and for Japan as a whole, on the social level – there are some trends which suggest that gender norms in Japan can be directed in a manner which will allow for much healthier emotional relationships to develop between the genders in a manner that will help build a society that is more cognisant of and attentive to the needs of women.

Details

Gender Violence, the Law, and Society
Type: Book
ISBN: 978-1-80117-127-4

Keywords

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