Search results

1 – 10 of 641
Article
Publication date: 3 July 2007

David J. Clements, Marc P.Y. Desmulliez and Eitan Abraham

The objective of this investigation is the derivation of a mathematical model that describes the pressure characteristics of paste during the stencil printing process. This model…

Abstract

Purpose

The objective of this investigation is the derivation of a mathematical model that describes the pressure characteristics of paste during the stencil printing process. This model is intended to generalise a qualitative understanding of these effects using squeegees that can be curved but otherwise are standard in design.

Design/methodology/approach

This is an analytical treatment of the paste behaviour from the foundations of continuity of fluid flow and shear stresses that are imparted by the squeegee blade movement.

Findings

An equation is obtained that profiles the pressure generated by the squeegee movement which, for the case of a linear squeegee, shows very good agreement with predicted pressure profiles using experimental data.

Practical implications

This model provides a theoretical framework for a better understanding of how to overcome the failure modes inherent in stencil printing, such as over‐ or under‐filled stencil cavities.

Originality/value

This is a generalisation of a previously developed mesh printing model. It goes beyond flat squeegee designs to describe the printing process when the blade and stencil are in contact. In addition, it encompasses non‐Newtonian fluid behaviour.

Details

Soldering & Surface Mount Technology, vol. 19 no. 3
Type: Research Article
ISSN: 0954-0911

Keywords

Book part
Publication date: 27 October 2016

Alexandra L. Ferrentino, Meghan L. Maliga, Richard A. Bernardi and Susan M. Bosco

This research provides accounting-ethics authors and administrators with a benchmark for accounting-ethics research. While Bernardi and Bean (2010) considered publications in…

Abstract

This research provides accounting-ethics authors and administrators with a benchmark for accounting-ethics research. While Bernardi and Bean (2010) considered publications in business-ethics and accounting’s top-40 journals this study considers research in eight accounting-ethics and public-interest journals, as well as, 34 business-ethics journals. We analyzed the contents of our 42 journals for the 25-year period between 1991 through 2015. This research documents the continued growth (Bernardi & Bean, 2007) of accounting-ethics research in both accounting-ethics and business-ethics journals. We provide data on the top-10 ethics authors in each doctoral year group, the top-50 ethics authors over the most recent 10, 20, and 25 years, and a distribution among ethics scholars for these periods. For the 25-year timeframe, our data indicate that only 665 (274) of the 5,125 accounting PhDs/DBAs (13.0% and 5.4% respectively) in Canada and the United States had authored or co-authored one (more than one) ethics article.

Details

Research on Professional Responsibility and Ethics in Accounting
Type: Book
ISBN: 978-1-78560-973-2

Keywords

Book part
Publication date: 29 February 2008

Michael P. Clements and David F. Hendry

In recent work, we have developed a theory of economic forecasting for empirical econometric models when there are structural breaks. This research shows that well-specified…

Abstract

In recent work, we have developed a theory of economic forecasting for empirical econometric models when there are structural breaks. This research shows that well-specified models may forecast poorly, whereas it is possible to design forecasting devices more immune to the effects of breaks. In this chapter, we summarise key aspects of that theory, describe the models and data, then provide an empirical illustration of some of these developments when the goal is to generate sequences of inflation forecasts over a long historical period, starting with the model of annual inflation in the UK over 1875–1991 in Hendry (2001a).

Details

Forecasting in the Presence of Structural Breaks and Model Uncertainty
Type: Book
ISBN: 978-1-84950-540-6

Book part
Publication date: 18 January 2022

Andrew B. Martinez, Jennifer L. Castle and David F. Hendry

We investigate whether smooth robust methods for forecasting can help mitigate pronounced and persistent failure across multiple forecast horizons. We demonstrate that naive…

Abstract

We investigate whether smooth robust methods for forecasting can help mitigate pronounced and persistent failure across multiple forecast horizons. We demonstrate that naive predictors are interpretable as local estimators of the long-run relationship with the advantage of adapting quickly after a break, but at a cost of additional forecast error variance. Smoothing over naive estimates helps retain these advantages while reducing the costs, especially for longer forecast horizons. We derive the performance of these predictors after a location shift, and confirm the results using simulations. We apply smooth methods to forecasts of UK productivity and US 10-year Treasury yields and show that they can dramatically reduce persistent forecast failure exhibited by forecasts from macroeconomic models and professional forecasters.

Details

Essays in Honor of M. Hashem Pesaran: Prediction and Macro Modeling
Type: Book
ISBN: 978-1-80262-062-7

Keywords

Book part
Publication date: 29 February 2008

Jennifer L. Castle and David F. Hendry

Structural models' inflation forecasts are often inferior to those of naïve devices. This chapter theoretically and empirically assesses this for UK annual and quarterly…

Abstract

Structural models' inflation forecasts are often inferior to those of naïve devices. This chapter theoretically and empirically assesses this for UK annual and quarterly inflation, using the theoretical framework in Clements and Hendry (1998, 1999). Forecasts from equilibrium-correction mechanisms, built by automatic model selection, are compared to various robust devices. Forecast-error taxonomies for aggregated and time-disaggregated information reveal that the impacts of structural breaks are identical between these, helping to interpret the empirical findings. Forecast failures in structural models are driven by their deterministic terms, confirming location shifts as a pernicious cause thereof, and explaining the success of robust devices.

Details

Forecasting in the Presence of Structural Breaks and Model Uncertainty
Type: Book
ISBN: 978-1-84950-540-6

Abstract

Details

Nonlinear Time Series Analysis of Business Cycles
Type: Book
ISBN: 978-0-44451-838-5

Article
Publication date: 16 August 2010

Kathy Lowe, Edwin Jones, Shelley Horwood, Diane Gray, Wendy James, Jock Andrew and David Allen

A system of evidence‐based periodic service review (PSR) was implemented in specialist health services for people with challenging behaviour, to support the adoption of a positive…

1064

Abstract

A system of evidence‐based periodic service review (PSR) was implemented in specialist health services for people with challenging behaviour, to support the adoption of a positive behavioural approach. The extent and accuracy of PSR implementation, its impact on staff knowledge and attitudes, and its value as a practice leadership tool were assessed. The results indicated that PSR was implemented regularly, scoring was based accurately on tangible evidence, and increased scores over time indicated service improvement in line with PSR principles. Staff generally welcomed PSR as a quality monitoring tool, and greater knowledge of the rationale and process for PSR was associated with more positive attitudes. Managers regarded PSR as a valuable aid to practice leadership and had used innovative implementation methods to maximise its acceptance by staff teams. The style of management and need for support from the wider organisational structure are discussed as critical factors in successful implementation.

Details

Tizard Learning Disability Review, vol. 15 no. 3
Type: Research Article
ISSN: 1359-5474

Keywords

Abstract

Details

New Directions in Macromodelling
Type: Book
ISBN: 978-1-84950-830-8

Book part
Publication date: 24 February 2023

Romina Gómez-Prado, Aldo Alvarez-Risco, Jorge Sánchez-Palomino, Berdy Briggitte Cuya-Velásquez, Sharon Esquerre-Botton, Luigi Leclercq-Machado, Sarahit Castillo-Benancio, Marián Arias-Meza, Micaela Jaramillo-Arévalo, Myreya De-La-Cruz-Diaz, Maria de las Mercedes Anderson-Seminario and Shyla Del-Aguila-Arcentales

In the academic field of business management, several potential theories were established during the last decades to explain companies' decisions, organizational behavior…

Abstract

In the academic field of business management, several potential theories were established during the last decades to explain companies' decisions, organizational behavior, consumer patterns, and internationalization, among others. As a result, businesses and scholars were able to analyze and decide based on theoretical approaches to explain the current conditions of the market. Secondary research was conducted to collect more than 36 management theories. This chapter aims to develop the most famous theories related to business applied in the international field. The novelty of this chapter relies on the compilation of recognized previous research studies from the academic literature and evidence in international business.

Abstract

Details

Postmodern Malpractice: A Medical Case Study in The Culture War
Type: Book
ISBN: 978-1-84950-091-3

1 – 10 of 641