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1 – 10 of 39
Article
Publication date: 1 July 2005

Mary E. Kinsella, Blaine Lilly, Benjamin E. Gardner and Nick J. Jacobs

To determine static friction coefficients between rapid tooled materials and thermoplastic materials to better understand ejection force requirements for the injection molding…

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Abstract

Purpose

To determine static friction coefficients between rapid tooled materials and thermoplastic materials to better understand ejection force requirements for the injection molding process using rapid‐tooled mold inserts.

Design/methodology/approach

Static coefficients of friction were determined for semi‐crystalline high‐density polyethylene (HDPE) and amorphous high‐impact polystyrene (HIPS) against two rapid tooling materials, sintered steel with bronze (LaserForm ST‐100) and stereolithography resin (SL5170), and against P‐20 mold steel. Friction tests, using the ASTM D 1894 standard, were run for all material pairs at room temperature, at typical part ejection temperatures, and at ejection temperatures preceded by processing temperatures. The tests at high temperature were designed to simulate injection molding process conditions.

Findings

The friction coefficients for HDPE were similar on P‐20 Steel, LaserForm ST‐100, and SL5170 Resin at all temperature conditions. The HIPS coefficients, however, varied significantly among tooling materials in heated tests. Both polymers showed highest coefficients on SL5170 Resin at all temperature conditions. Friction coefficients were especially high for HIPS on the SL5170 Resin tooling material.

Research limitations/implications

Applications of these findings must consider that elevated temperature tests more closely simulated the injection‐molding environment, but did not exactly duplicate it.

Practical implications

The data obtained from these tests allow for more accurate determination of friction conditions and ejection forces, which can improve future design of injection molds using rapid tooling technologies.

Originality/value

This work provides previously unavailable friction data for two common thermoplastics against two rapid tooling materials and one steel tooling material, and under conditions that more closely simulate the injection‐molding environment.

Details

Rapid Prototyping Journal, vol. 11 no. 3
Type: Research Article
ISSN: 1355-2546

Keywords

Book part
Publication date: 9 November 2020

Erika Katzman

Purpose: This chapter problematizes the philosophical origins of direct funding models in a normative conception of independence that ignores and obscures the fundamentally…

Abstract

Purpose: This chapter problematizes the philosophical origins of direct funding models in a normative conception of independence that ignores and obscures the fundamentally relational nature of care work.

Approach: The study adopts a reflexive ethnographic methodological approach. In-depth, semistructured interviews were conducted with 19 participants variously involved with direct-funded attendant services (disabled “self-managers,” “attendant” employees, other members of self-managers’ support networks, and program staff). Additional data sources included the author's reflexive journaling and publicly available policy and program materials. The present analysis interrogated the impact of systemic constraints (i.e., limited funding) on the organization and management of attendant services.

Findings: The data illuminate how systemic constraints draw the interests of self-managers and attendants into tension, despite the affective relationality of the work they do together. The findings present four strategies self-managers adopt to maximize support hours, including: splitting shifts, strategic hiring, dynamic resource management, and supplementing remuneration. These findings suggest it is not vulnerability to each other that represents an ongoing concern for self-managers and attendants, so much as exploitation by a system that capitalizes on the oppression of both groups.

Implication/ Value: Disabled people and care workers have been and continue to be constructed as opposing interest groups. However, there is great potential in disabled people and care workers joining a united front to lobby for their common, often interrelated interests. Direct funding models are an important evolution of support services, but where they fail to attend to the relational nature of care work, we must continue to pursue more inclusive solutions.

Details

Disability Alliances and Allies
Type: Book
ISBN: 978-1-83909-322-7

Keywords

Article
Publication date: 1 February 2004

Roy Whitehead and Walter Block

In the aftermath of the Enron scandal, the critics of free enterprise have blamed this system for inflated and out of control executive salaries, particularly those of the chief…

Abstract

In the aftermath of the Enron scandal, the critics of free enterprise have blamed this system for inflated and out of control executive salaries, particularly those of the chief executive officer (CEO). The present paper defends the marketplace against these charges. In section I we argue that the market has passed the Enron test with flying colors. Section II gives the background of the financial situation relating to CEO salaries. Sections III and IV are devoted to, respectively, the tax court and the appellate court; section V looks at the reaction of the former to the latter; and in section VI we defend the “independent investor” test. We look at this issue from a political economic perspective in section VII and conclude in section VIII.

Details

Managerial Finance, vol. 30 no. 2
Type: Research Article
ISSN: 0307-4358

Keywords

Article
Publication date: 1 January 1980

A highly significant action taken by the Minister of Agriculture, Fisheries and Food, reported elsewhere in this issue, could well result in important advances in surveillance and…

Abstract

A highly significant action taken by the Minister of Agriculture, Fisheries and Food, reported elsewhere in this issue, could well result in important advances in surveillance and probably legislative control over enforcement of certain aspects of EEC legislation in the Member‐states. The Minister has sent an urgent request to the Commission in Brussels to dispatch inspectors to each country, including the United Kingdom, to examine and report on the standards of inspection and hygiene with detailed information on how the EEC Directive on Poultry Meat is being implemented. Information of the method of financing the cost of poultrymeat inspection in each country has ben requested. The comprehensive survey is seen as a common approach in this one field. The Minister requested that the results of the inspectors' reports should be available to him and other Member‐states.

Details

British Food Journal, vol. 82 no. 1
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 7 August 2007

Frank Liou, Kevin Slattery, Mary Kinsella, Joseph Newkirk, Hsin‐Nan Chou and Robert Landers

This paper sets out to summarize the current research, development, and integration of a hybrid process to produce high‐temperature metallic materials. It seeks to present the…

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Abstract

Purpose

This paper sets out to summarize the current research, development, and integration of a hybrid process to produce high‐temperature metallic materials. It seeks to present the issues and solutions, including the understanding of the direct laser deposition process, and automated process planning.

Design/methodology/approach

Research in simulation and modeling, process development, integration, and actual part building for hybrid processing are discussed.

Findings

Coupling additive and subtractive processes into a single workstation, the integrated process, or hybrid process, can produce metal parts with machining accuracy and surface finish. Therefore, the hybrid process is potentially a very competitive process to fabricate metallic structures.

Originality/value

Rapid prototyping technology has been of interest to various industries that are looking for a process to produce/build a part directly from a CAD model in a short time. Among them, the direct laser deposition process is one of the few processes which directly manufacture a fully dense metal part without intermediate steps. Presented in this paper is the research, development, and system integration to resolve the challenges of the direct metal deposition process including building overhang structures, producing precision surfaces, and making parts with complex structures.

Details

Rapid Prototyping Journal, vol. 13 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Book part
Publication date: 14 October 2019

Katerina Berezina, Olena Ciftci and Cihan Cobanoglu

Purpose: The purpose of this chapter is to review and critically evaluate robots, artificial intelligence and service automation (RAISA) applications in the restaurant industry to…

Abstract

Purpose: The purpose of this chapter is to review and critically evaluate robots, artificial intelligence and service automation (RAISA) applications in the restaurant industry to educate professors, graduate students, and industry professionals.

Design/methodology/approach: This chapter is a survey of applications of RAISA in restaurants. The chapter is based on the review of professional and peer-reviewed academic literature, and the industry insight section was prepared based on a 50-minute interview with Mr. Juan Higueros, Chief Operations Officer of Bear Robotics.

Findings: Various case studies presented in this chapter illustrate numerous possibilities for automation: from automating a specific function to complete automation of the front of the house (e.g., Eatsa) or back of the house (e.g., Spyce robotic kitchen). The restaurant industry has already adopted chatbots; voice-activated and biometric technologies; robots as hosts, food runners, chefs, and bartenders; tableside ordering; conveyors; and robotic food delivery.

Practical implications: The chapter presents professors and students with a detailed overview of RAISA in the restaurant industry that will be useful for educational and research purposes. Restaurant owners and managers may also benefit from reading this chapter as they will learn about the current state of technology and opportunities for RAISA implementation.

Originality/value: To the best of the authors’ knowledge, this chapter presents the first systematic and in-depth review of RAISA technologies in the restaurant industry.

Details

Robots, Artificial Intelligence, and Service Automation in Travel, Tourism and Hospitality
Type: Book
ISBN: 978-1-78756-688-0

Keywords

Book part
Publication date: 23 August 2019

Eleanor Peters

Abstract

Details

The Use and Abuse of Music: Criminal Records
Type: Book
ISBN: 978-1-78769-002-8

Content available
Book part
Publication date: 11 May 2022

Jacqui Horsburgh

Abstract

Details

Improving Outcomes for Looked after Children
Type: Book
ISBN: 978-1-80071-078-8

Article
Publication date: 1 February 1991

Susan C. Cooper and Susan E. Hillyard

The winter 1987 issue of Reference Services Review featured a bibliography of AIDS‐related materials prepared by Edmund SantaVicca, former head of Collection Management Services…

Abstract

The winter 1987 issue of Reference Services Review featured a bibliography of AIDS‐related materials prepared by Edmund SantaVicca, former head of Collection Management Services at Cleveland State University.

Details

Reference Services Review, vol. 19 no. 2
Type: Research Article
ISSN: 0090-7324

Article
Publication date: 13 November 2017

Latisha Reynolds, Amber Willenborg, Samantha McClellan, Rosalinda Hernandez Linares and Elizabeth Alison Sterner

This paper aims to present recently published resources on information literacy and library instruction providing an introductory overview and a selected annotated bibliography of…

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Abstract

Purpose

This paper aims to present recently published resources on information literacy and library instruction providing an introductory overview and a selected annotated bibliography of publications covering all library types.

Design/methodology/approach

This paper introduces and annotates English-language periodical articles, monographs, dissertations and other materials on library instruction and information literacy published in 2016.

Findings

The paper provides information about each source, describes the characteristics of current scholarship and highlights sources that contain unique or significant scholarly contributions.

Originality/value

The information may be used by librarians and interested parties as a quick reference to literature on library instruction and information literacy.

Details

Reference Services Review, vol. 45 no. 4
Type: Research Article
ISSN: 0090-7324

Keywords

1 – 10 of 39