Search results

1 – 10 of over 23000
Article
Publication date: 1 July 2006

Y. Zhang

To develop a fairly different EHL inlet zone analysis for investigating the contact‐lubricant interfacial limiting shear stress effect on line contact EHL film thickness in…

Abstract

Purpose

To develop a fairly different EHL inlet zone analysis for investigating the contact‐lubricant interfacial limiting shear stress effect on line contact EHL film thickness in isothermal conditions. This analysis is purposed to give fast and qualitatively correct results.

Design/methodology/approach

A Grubin‐like EHL inlet zone analysis is derived with closed form of the analytical results of the EHL film thickness, the EHL film pressure, the contact‐lubricant interfacial shear stress and the contact‐lubricant interfacial slipping velocity in the EHL inlet zone based on the assumption of the contact‐lubricant interfacial limiting shear stress in the EHL inlet zone. In this analysis, the lubricant is allowed to slip at the contact surface; The inlet contact surface shape is known from results referenced in this paper; The physical condition for the presence of the film slippage is incorporated; The lubricated area is divided into different kinds of film slippage zones where are, respectively, applied different governing equations. Three deterministic equations in this analysis are obtained and solving these coupled equations gives the solutions of the boundaries of the slip zone and the percentage reduction of the central film thickness by the contact‐lubricant interfacial limiting shear stress effect in this EHL.

Findings

Compared with the earlier approaches to the present problem, the present analysis has the advantage of giving fast and qualitatively correct solutions. The results obtained from the present analysis show that the contact‐lubricant interfacial limiting shear stress effect on EHL film thickness is usually strong when the contact‐lubricant interfacial limiting shear stress in the EHL inlet zone is low; This effect can greatly reduce the global EHL film thickness especially in severe operating conditions.

Practical implications

A very useful material for the academic researcher and the engineer who are engaged in the study and measurement of the effect of the contact‐lubricant interfacial limiting shear stress on EHL film thickness and EHL film pressure.

Originality/value

A fairly different EHL inlet zone analysis is originally developed based on the assumption of the contact‐lubricant interfacial limiting shear stress in the EHL inlet zone. The physical condition for the contact‐lubricant interfacial slippage is first incorporated in this analysis. Deterministic governing equations in this analysis are derived and solving these coupled equations gives the final solutions of the present problem. This analysis has the advantage of giving fast and qualitatively correct solutions. It convincible shows the contact‐lubricant interfacial limiting shear stress effect on EHL film thickness and EHL film pressure in the present EHL.

Details

Industrial Lubrication and Tribology, vol. 58 no. 4
Type: Research Article
ISSN: 0036-8792

Keywords

Book part
Publication date: 9 July 2018

Elizabeth Lomas and Vanda Broughton

This chapter examined portrayals of the morality of organizations using the lens of Western films. The work explored six decades of film, analyzing the organizational contexts and…

Abstract

This chapter examined portrayals of the morality of organizations using the lens of Western films. The work explored six decades of film, analyzing the organizational contexts and their agents, in order to understand filmmakers’ and audiences’ perceptions of organizational settings. In order to examine the organization as an entity within film, this chapter provided a content analysis of plot summaries from a purposefully selected body of top grossing box office films spanning 60 years. The plot summaries constituted a strong basis for identifying the characteristics of the organization as they are largely descriptive in nature and as such do not offer any evaluation or analysis of the film. Any assumptions about the character of organizations (or their members/employees) are unconscious, and as such they constitute a verbal description of what competent observers would say has occurred within the film. The plots were coded to reveal perceptions of positive, neutral, or negative organizational contexts and actions. This approach exposed the filmmakers symbolic placing of the organization in order to provide backdrops for the narrative. The plot analysis revealed that throughout the decades there has been a sophisticated portrayal in film of the role of the organization and the agents therein. A generally negative view of organizational contexts was demonstrated, with only religion and education shown as positive within the films selected. It was recognized that there would be value in extending this research to analyze a larger body of works. The selection criteria resulted in a wide but not comprehensive corpus of film genres. The body of works was sufficient to reveal the complexity of attitudes to organizational values and delivery which has evolved through time. Different selection criteria and more substantial narrative text could serve to confirm these results. Further implications for future research were discussed. While in the real-life sphere, there has been an emphasis on organizational standards and “corporate governance” delivering ethical exemplars, the film contexts highlight the complexities of delivering trusted organizations. The reality that there remains the potential for organizational corruption is well understood by the general public and clearly depicted within the film world. The conceptual contribution is original as limited work has been conducted on the organizational context in films. This work revealed the possibility of using this approach to further develop a greater understanding of perceptions of organizations.

Details

Visual Ethics
Type: Book
ISBN: 978-1-78756-165-6

Keywords

Open Access
Article
Publication date: 30 October 2019

Matthew Hanchard, Peter Merrington, Bridgette Wessels and Simeon Yates

This paper focuses on patterns of film consumption within cultural consumption more broadly to assess trends in consumerism such as eclectic consumption, individualised…

Abstract

This paper focuses on patterns of film consumption within cultural consumption more broadly to assess trends in consumerism such as eclectic consumption, individualised consumption and omnivorous/univorous consumption and whether economic background and status feature in shaping cultural consumption. We focus on film because it is widely consumed, online and offline, and has many genres that vary in terms of perceived artistic and entertainment value. In broad terms, film is differentiated between mainstream commercially driven film such as Hollywood blockbusters, middlebrow “feel good” movies and independent arthouse and foreign language film. Our empirical statistical analysis shows that film consumers watch a wide range of genres. However, films deemed to hold artistic value such as arthouse and foreign language feature as part of broad and wide-ranging pattern of consumption of film that attracts its own dedicated consumers. Though we found that social and economic factors remain predictors of cultural consumption the overall picture is more complex than a simple direct correspondence and perceptions of other cultural forms also play a role. Those likely to consume arthouse and foreign language film consume other film genres and other cultural forms genres and those who “prefer” arthouse and foreign language film have slightly more constrained socio-economic characteristics. Overall, we find that economic and cultural factors such income, education, and wider consumption of culture are significant in patterns of film consumption.

Details

Emerald Open Research, vol. 1 no. 1
Type: Research Article
ISSN: 2631-3952

Keywords

Article
Publication date: 8 November 2023

Sanjna Sebastian Thoppil and Sanjay Pandy

This study explores the relevance of film texts in Indian social studies classrooms for students at the upper primary level. It examines how different types of visual texts can…

Abstract

Purpose

This study explores the relevance of film texts in Indian social studies classrooms for students at the upper primary level. It examines how different types of visual texts can facilitate awareness, critical thinking, discussion and action.

Design/methodology/approach

Using multimodal discourse analysis (MDA), this paper critically evaluates five selective films from regional cinemas in India and explores their teaching implications for social studies. The study argues that films are vital multimodal resources that can challenge the prevailing narratives in social studies pedagogy. It conveys how the suggestive revised taxonomy could benefit the students. It proposes a classification system for film analysis with discussion and states how films can bring out interrelated themes and encourage deeper, critical inquiry within the curriculum. The study finds discourse around the films and qualitatively stresses dialogue exchange with sentiment analysis using MAXQDA software. Developed by VERBI software, MAXQDA is a product whose name is inspired by the German Sociologist Max Weber, while the ‘QDA' stands for Qualitative Data Analysis.

Findings

The films act as multimodal texts, navigators, metaphors, communicative circuits and catalysts. The paper concludes that films can improve and expand multimodal learning of social studies in three ways: films help learners connect emotionally with the concepts, films make the learning process more appealing and extend it beyond classroom boundaries and films offer a unique insight into the socio-cultural subtleties that are often limited in textbooks.

Originality/value

This research pioneers an intersectionality-driven framework for film analysis in the curriculum for Indian upper primary social studies, offering innovative pedagogical tools to enrich Indian curriculum insights and bridge existing knowledge gaps.

Details

Social Studies Research and Practice, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1933-5415

Keywords

Book part
Publication date: 24 November 2022

Juan-Pablo Osman and Nancy R. Gómez

This chapter analyses the pilot episode of the ABC TV series Charlie's Angels (Spelling & Goldberg, 1976–1981) and the latest film of this media franchise, Charlie's Angels

Abstract

This chapter analyses the pilot episode of the ABC TV series Charlie's Angels (Spelling & Goldberg, 1976–1981) and the latest film of this media franchise, Charlie's Angels (Banks, 2019). The chapter undertakes an analysis of the three main characters in the series pilot and the three starring roles in the film, applying methodologies proposed by the cinematic poetic formalism (Bordwell & Thompson, 2006) and observing specifically the roles and motivations of these six women from a feminist perspective. On the one hand, the TV pilot engages with several of the main premises of the second-wave feminism that was in full swing at the time the series was released. On the other hand, the 2019 film was launched in the contemporary era of post-feminism, reflecting a number of the concerns that shape the post-feminist agenda. However, the main argument of this chapter is that both the series pilot released in 1976 and the 2019 film construct ambivalent feminist narratives. The analysis reveals that the Charlie's Angels franchise fluctuates between characteristics that can be labelled as feminist discourses, but also as replicators of a patriarchal model. Forty-six years later, while a few things have changed for the Angels, we argue that the characters and franchise have not lived up to its potential as a transformative feminist text.

Details

Gender and Action Films 2000 and Beyond
Type: Book
ISBN: 978-1-80117-518-0

Keywords

Article
Publication date: 6 March 2017

Jiamei Wang and Le Fu Zhang

The purpose of this study was to investigate the effects of deformation-induced martensite on electrochemical corrosion behaviors of 304 austenitic stainless steel in a simulated…

Abstract

Purpose

The purpose of this study was to investigate the effects of deformation-induced martensite on electrochemical corrosion behaviors of 304 austenitic stainless steel in a simulated primary water environment of a pressurized water reactor nuclear power plant with boric acid and lithium hydroxide contaminated with chloride by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), Mott–Schotty curves and X-ray photoelectron spectroscopy (XPS).

Design/methodology/approach

The effects of deformation-induced martensite transformation on electrochemical corrosion behaviors of 304 austenitic stainless steel was investigated in a simulated primary water environment of a pressurized water reactor nuclear power plant with boric acid and lithium hydroxide contaminated with 0.1 M Cl by potentiodynamic polarization, EIS, Mott–Schotty curves and XPS in this paper.

Findings

The results revealed that the martensitic phase contents increased with the level of cold deformation. The general corrosion current density and the corrosion potential increased and decreased, respectively, with the increase of cold deformation degree. However, the pitting potential decreased as the cold deformation increased up to 20 per cent, then a slight increase was observed at 35 per cent cold working. It was found from Mott–Schottky curves and XPS analysis that as the cold deformation degree increased from 0 to 35 per cent, the doping concentrations of the oxide films increased; however, the film thickness decreased, which indicates that both density and integrity of the films are degraded significantly as the deformation degree increases, and this ultimately contributes to the significant increment of the general corrosion rate and reduction of the pitting corrosion resistance.

Originality/value

The effects of deformation-induced martensite transformation on electrochemical corrosion behaviors of 304 austenitic stainless steel was investigated in a simulated primary water environment of a pressurized water reactor nuclear power plant with boric acid and lithium hydroxide contaminated with 0.1 M Cl by potentiodynamic polarization, EIS, Mott–Schotty curves and XPS in this paper.

Details

Anti-Corrosion Methods and Materials, vol. 64 no. 2
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 10 July 2017

Anil B. Shinde and Prashant M. Pawar

This study aims to improve the performance of hydrodynamic journal bearings through partial grooving on the bearing surface.

333

Abstract

Purpose

This study aims to improve the performance of hydrodynamic journal bearings through partial grooving on the bearing surface.

Design/methodology/approach

Bearing performance analysis is numerically carried out using the thin film flow physics of COMSOL Multiphysics 5.0 software. Initially, the static performance analysis is carried out for hydrodynamic journal bearing system with smooth surface, and the results of the same are validated with results from the literature. In the later part of the paper, the partial rectangular shape micro-textures are modeled on bearing surface. The effects of partial groove pattern on the bearing performance parameters, namely, fluid film pressure, load carrying capacity, frictional power loss and frictional torque, are studied in detail.

Findings

The numerical results show that the values of maximum fluid film pressure, load carrying capacity, frictional power loss and frictional torque are considerably improved due to deterministic micro-textures. Bearing surface with partial groove along 90°-180° region results in 81.9 per cent improvement in maximum fluid film pressure and 75.9 per cent improvement in load carrying capacity as compared with smooth surface of journal bearing, with no increase in frictional power loss and frictional torque. Maximum decrease in frictional power loss and frictional torque is observed for partially grooving along 90°-360° region. The simulations are supported by proof-of-concept experimentation.

Originality/value

This study is useful in the appropriate selection of groove parameters on bearing surface to the bearing performance characteristics.

Details

Industrial Lubrication and Tribology, vol. 69 no. 4
Type: Research Article
ISSN: 0036-8792

Keywords

Book part
Publication date: 22 December 2008

Peter Robson

Just as the films that we see are conceived in specific economic, political and cultural contexts, so scholarship is produced within determined situations. This chapter notes some…

Abstract

Just as the films that we see are conceived in specific economic, political and cultural contexts, so scholarship is produced within determined situations. This chapter notes some of the driving forces which have led to the emergence of law and film as an area of extensive and very diverse scholarship in the past decade. Whilst these factors have shaped the nature and extent of this work it should be noted that changes in both legal professional interests, academic criteria and within the culture industry mean that we can expect shifts in the nature and patterns of scholarship in the future. These may not, however, be the ones called for by other commentators (Moran, Sandon, Loizidou, & Christie, 2004; Sarat, Douglas, & Umphrey, 2005).

Details

Studies in Law, Politics and Society
Type: Book
ISBN: 978-1-84855-378-1

Article
Publication date: 23 November 2023

Donald R. McClure, Anne-Lise Halvorsen and Daniel J. Thomas III

This study explores the value of sports films for engaging youth in issues related to patriotism, justice, equity and liberty. The authors analyze how two sports films, 42 and…

Abstract

Purpose

This study explores the value of sports films for engaging youth in issues related to patriotism, justice, equity and liberty. The authors analyze how two sports films, 42 and Battle of the Sexes, have pedagogical potential and value in secondary social studies methods classes, as well as what criteria educators might use when selecting films (and television series) for classroom use.

Design/methodology/approach

Using content analysis, the authors respond to the following questions: (1) What critical themes related to civic education surface in the sports films 42 and Battle of the Sexes? and (2) What framework might guide the use of selecting sports films and sports film clips for educators' civic educational use?

Findings

Five themes surfaced in the films 42 and Battle of the Sexes: economics as a force for social change; racism and anti-Blackness, athletes as more than athletes, resisting oppression, and sexism and homophobia. Instruction related to these themes has the potential to engage students in critical, awareness-based approaches to civic education.

Originality/value

Sports films show promise for engaging youth due to their interests in the medium of film and in sports, both as participants and spectators. Across the world, athletes face questions and issues related to patriotism, justice, equity and liberty on courts, fields, tracks and rinks, These questions and issues are deeply embedded in civic education. This study is among the first of its kind to explore the pedagogical potential of sports films.

Details

Social Studies Research and Practice, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1933-5415

Keywords

Article
Publication date: 14 January 2014

David Oberhelman

– -- The purpose of this paper is to provide a selected list of free and subscription web resources for film and television (screen) studies.

474

Abstract

Purpose

-- The purpose of this paper is to provide a selected list of free and subscription web resources for film and television (screen) studies.

Design/methodology/approach

-- Reference sources on film and other media studies were located, evaluated, and selected. The list is divided into four broad research categories; research databases and film catalogs (subscription products); film and television catalogs/databases (gratis); historical film streaming sites; and film studies portal sites.

Findings

-- There are a wide variety of resources available online that users can freely access as well as robust subscription products currently available to libraries to support research in film and television studies. Students and scholars can use both free and fee-based sites for film catalogs, film studies journal indexes, streaming video content, and other information and analysis on visual media.

Originality/value

-- There has not been a bibliographic list of online film studies resources undertaken since 2005, and many new web resources as well as databases have emerged in the field. The annotated list of resources in this study seeks to supplement and update what has been previously discussed in the LIS literature on web-based reference sources available for libraries supporting film and television studies.

Details

Reference Reviews, vol. 28 no. 1
Type: Research Article
ISSN: 0950-4125

Keywords

1 – 10 of over 23000