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Article
Publication date: 13 June 2016

Alper Uysal

In milling of stainless steel materials, various cutting tool failures such as flank wear, crater wear, cracks, chipping, etc. can be observed because of their work hardening…

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Abstract

Purpose

In milling of stainless steel materials, various cutting tool failures such as flank wear, crater wear, cracks, chipping, etc. can be observed because of their work hardening tendency and low thermal conductivity. For this reason, this paper aims to develop some coolants and coatings to reduce these formations. However, further research should be performed to reach the desired level.

Design/methodology/approach

In this study, the initial flank wear rates of uncoated and titanium nitride-coated tungsten carbide cutting tools were investigated during the milling of AISI 430 ferritic stainless steel. The milling experiments were conducted under dry and minimum quantity lubrication (MQL) conditions. Nano graphene reinforced vegetable cutting fluid was prepared and applied by the MQL system. The mixture ratios of nanofluids were selected as 1 and 2 wt.%, and MQL flow rates were adjusted at 20 and 40 ml/h.

Findings

It was observed that MQL milling with nano graphene reinforced cutting fluid has advantages over dry milling and MQL milling with pure cutting fluid in terms of the initial flank wear.

Originality/value

This paper contains new and significant information adequate to justify publication. MQL is a new method for vegetable cutting fluid containing nano graphene particles.

Details

Industrial Lubrication and Tribology, vol. 68 no. 4
Type: Research Article
ISSN: 0036-8792

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Book part
Publication date: 19 July 2021

Didem Türkoğlu

Welfare state retrenchment in advanced industrialized countries seeks to expand market-like logics in public services, based on the assumption that public services benefit from…

Abstract

Welfare state retrenchment in advanced industrialized countries seeks to expand market-like logics in public services, based on the assumption that public services benefit from non-state initiative and competition. This logic gained a stronghold in policymaking, but its implementation nevertheless struggled to find acceptance. Public university tuition is one such case where policymakers aimed to increase investment in human capital through cost sharing. While students in some countries accept them as a necessary evil, opposition arises in others. Students in Germany and Turkey took to the streets in support of tuition-free higher education. Despite differences in their political contexts and the differential mediating role political culture plays, student mobilization reversed right-wing parties' policies. This article focuses on how opposition to tuition policies is covered by the news in both countries. Using a mixed-methods approach combining topic modeling with qualitative analysis, I show that student protests and tuition policy discussions are reported separately. In both countries, student protests involving confrontation were highlighted whereas reports on institutional actors dominated policy discussions. However, when movements pressure political parties to “own” an issue in their platform, party endorsement subsequently amplifies issue salience even if movement organizations and parties are not covered together by the media. This indicates an indirect effect of movements' collective action on news coverage. Political party endorsements mediate the amount of coverage movement issues receive. This finding provides insights into how opposition to welfare state retrenchment might navigate difficulties in closed media cultures that heavily favor institutional actors.

Details

The Politics of Inequality
Type: Book
ISBN: 978-1-83909-363-0

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Article
Publication date: 13 March 2020

Murat Alper Basaran, Seden Dogan and Kemal Kantarci

Web 2.0 applications enable travelers to evaluate several services and assessment attributes. Constructed websites in several languages trigger a new way of data collections…

382

Abstract

Purpose

Web 2.0 applications enable travelers to evaluate several services and assessment attributes. Constructed websites in several languages trigger a new way of data collections resulting in data streams leading to the accumulation of vast amounts of data, called big data. The need for analysis is in high demand. This study aims to construct a model to investigate which single attribute or interrelated ones having an impact on the performances of hotels.

Design/methodology/approach

The total number of 1,137 observations collected from the website HolidayCheck.de are used from the hotels in the Bavaria region in 2016. Bavaria is a region where both domestic and foreign travelers mostly prefer to visit. Fuzzy rule-based systems, which is a combination of fuzzy set theory (FST) and fuzzy logic, are used. Although the FST is used to convert linguistically expressed perceptions by travelers into mathematically usable data, fuzzy logic is used to construct a model between service attributes and price-performance (PP) to attain the set of single and interrelated attributes on the assessment of PP.

Findings

No single attribute plays a key role in PP assessment. However, two or more interrelated combinations have different impacts on PP. For example, when “Food—Drink” and “Room” moves together from average to good level, PP reaches the highest level of assessment.

Research limitations/implications

Accessibility to too much data is difficult.

Practical implications

A model can be continuously run so that any changes can be observed during the incoming of data.

Social implications

As the consumer reviews and ratings are the crucial source of information for other travelers, hoteliers must monitor and respond them on time in order to deal with the complaints.

Originality/value

Travelers’ perceptions or evaluations are treated with a FST that measures the impression of human beings. New modeling enables researchers to observe not only any single attribute but also interrelated ones on the PP.

Details

International Journal of Contemporary Hospitality Management, vol. 32 no. 4
Type: Research Article
ISSN: 0959-6119

Keywords

Available. Open Access. Open Access
Article
Publication date: 27 September 2021

Michele Simoni, Annarita Sorrentino, Daniele Leone and Andrea Caporuscio

This study aims to provide an exploratory analysis of the role of virtual reality (VR) in the cruise context as a contribution to the limited literature on this topic. In…

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Abstract

Purpose

This study aims to provide an exploratory analysis of the role of virtual reality (VR) in the cruise context as a contribution to the limited literature on this topic. In particular, the research investigates immersive VR as a critical touchpoint at the pre-purchase stage of the customer journey.

Design/methodology/approach

To achieve the research aims, the authors use a case study approach by analysing the “immersive configurator” (essentially a virtual catalogue) implemented by the Mediterranean Shipping Company (MSC).

Findings

Three innovative functions emerged from the study of the MSC’s virtual catalogue. First, it improves the customer experience and engagement through its interactivity. Second, it allows customization of the prospective cruise experience by selecting and changing types of ship, the level of service, the position of the cabin and much more. Third, it becomes a new digital marketing system endowed with large amounts of data.

Research limitations/implications

This study advances the current state of knowledge by presenting an empirical case study on the role of immersive VR at the pre-purchase stage of the customer journey. Second, it offers interesting implications for managers who want to take advantage of the opportunities offered by VR.

Originality/value

The present study analyses the pre-purchase stage in tourism marketing focused on the use of VR in the tourist experience at the time of service delivery. Second, it enriches the tourism literature by integrating supply-side and demand-side perspectives. Third, from a methodological point of view, this paper offers an in-depth qualitative study in a context where scholars have mostly applied quantitative methods.

通过虚拟现实来提高预购体验:洞悉游轮产业摘要

研究目的

以邮轮产业为背景, 鉴于少量的相关文献, 本研究对虚拟现实提供了初步研究。 本论文以侵入式虚拟现实作为顾客购买前关键体验点进行了探索。

研究设计/方法/途径

为实现研究目的, 本论文运用了案例研究发来分析地中海航运公司MSC目前使用的“侵入式配置程序” (尤其作为虚拟目录)。

研究结果

通过对MSC虚拟目录的研究, 我们发现了其三大创新功能。第一, 可有效的通过互动来提高顾客体验和参与。第二, 可允许对预期的游轮体验通过选择游轮种类, 服务等级, 船舱的位置等, 来进行量身定制。第三, 基于大量数据积累, 可作为数字营销系统。

理论贡献

通过实证案例研究, 本论文对侵入式虚拟现实在顾客预购体验中的研究文献进行了有效推进。其二, 本研究为期望运用虚拟现实的从业人员提供了新颖的实践知识。

研究原创性/价值

本研究在聚焦在虚拟现实技术运用在旅游营销中的前期游客体验。第二, 本研究整合了供给和需求两方面的视角。第三, 从研究方法的角度, 本研究在普遍运用定量研究的领域提供了深入的定性研究。

Details

Journal of Hospitality and Tourism Technology, vol. 13 no. 1
Type: Research Article
ISSN: 1757-9880

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