Effect of shot peening on the wear behavior of Ti(C,N) coating on TA15 alloy prepared by double glow plasma carbonitriding

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lin Xue ◽  
Qiang Miao ◽  
Wenping Liang ◽  
Hui Zhao ◽  
Weiwei Shi ◽  
...  

Purpose The purpose of this paper is to prepare Ti(C,N) coatings on TA15 treated and not treated by shot peening using double glow plasma alloying technique. The effect of shot peening on the wear behavior of Ti(C,N) coatings is discussed. Design/methodology/approach The Ti(C,N) coatings were prepared by double glow plasma alloying technique on two different TA15 substrate; one is shot peened and the other is not. Findings Ti(C,N) coating on SP-treated TA15 was thicker and denser, and the grain size was smaller compared with that on original TA15. Compared with the Ti(C,N) coating on original TA15, the wear resistance of that on SP-treated TA15 is improved. Ti(C,N) coating on SP-treated TA15 showed higher nanohardness and bearing capacity than that on original TA15. Originality/value For double glow plasma alloying technique, surface quality, surface activity and other factors will have influence on the thickness and density of the coating. The wear mechanisms of Ti(C,N) coating on original TA15 are serious abrasive wear and oxidation wear. However, the wear mechanism of Ti(C,N) coating on SP-treated TA15 is slightly oxidation wear. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2020-0283/

2018 ◽  
Vol 13 (2) ◽  
pp. 179-190 ◽  
Author(s):  
T.M. Wong

Purpose The purpose of this paper is to identify the teaching innovations that have been implemented in higher education institutions in Asia and the perspectives of educators on them. Design/methodology/approach Semi-structured interviews were conducted with 28 educators who were affiliated with 23 higher education institutions in ten Asian countries/regions. The interviews covered information about the teaching innovations of the participants’ institutions, the characteristics of the innovative practices and the participants’ views on them. The relationships between the characteristics of institutions and their teaching innovations were also examined. Findings The results showed that the teaching innovations included two main categories, namely, those which involved the use of advanced technologies and those which did not. The innovations that involved the use of advanced technologies were mainly from larger institutions, while the other category was mainly from smaller ones and had been practised for less than 1.5 years. Differences were also identified between the two categories in terms of the aims and importance of innovations, innovative features, the evaluation of innovations and improvements needed for them. Originality/value The results highlighted that technology is only one of the many aspects of teaching innovations, which is different from the view prevailing in the literature. They also suggested that differences in the scale of institutions (in terms of number of students) possibly influences the kind of teaching innovations adopted.


2017 ◽  
Vol 21 (3) ◽  
pp. 208-223
Author(s):  
Byung Mun Lee

Purpose The purpose of this paper is to describe and analyze the rules on the formation of contracts under Korean law and the Contracts for the International Sale of Goods (CISG) in a comparative way and introduce the relevant proposed rules under the Amendment Draft of the Korean Civil Code (KCC). In addition, it attempts to compare and evaluate them in light of the discipline of comparative law. Design/methodology/approach In order to achieve the purposes of the study, it executes a comparative study of the rules as to the formation of contracts of the CISG, Korean law and the Amendment Draft of the KCC. The basic question for this comparative study is placed on whether a solution from one jurisdiction is more logical than the others and to what extent each jurisdiction has responded to protect the reasonable expectations of the parties in the rules as to the formation of contracts. Findings The comparative study finds that most of the rules under the CISG are quite plausible and logical and they are more or less well reflected in the proposals advanced by the KCC amendment committee. On the other hand, the other rules under the CISG which have brought criticisms in terms of their complexity and inconsistent case law invite us their revision or consistent interpretation. The drawbacks of the CISG have also been well responded in the Amendment Draft of the KCC. Nevertheless, it is quite unfortunate that the Amendment Draft of the KCC still has a rule that regards any purported performance with non-material alteration of the terms of an offer as an acceptance. Originality/value This study may provide legal and practical advice to both the seller and the buyer when they enter into a contract for international sales of goods. In addition, it may render us an insight into newly developed or developing rules in this area and show us how they interact with each other. Furthermore, it may be particularly useful in Korea where there is an ongoing discussion for revision of the KCC.


2016 ◽  
Vol 23 (5) ◽  
pp. 1111-1131 ◽  
Author(s):  
AbdulLateef Olanrewaju

Purpose – The opportunities that the emerging markets present to the players in the construction industry means that the players need to expand on the scope and size of their responsibilities and duties to the stakeholders. Each of the professionals now demands more specialised and sophisticated services from one another. The other players in the construction industry now require more emerging responsibilities and duties from the quantity surveyors. The purpose of this paper is to examine the roles that “modern” quantity surveyors play by measuring the gaps that exist in the services that the quantity surveyors provide. Design/methodology/approach – Primary data are collected through survey questionnaires. In total, 23 roles played by modern quantity surveyors are identified and addressed to the respondents to rank the rate at which quantity surveyors provide these “emerging” services. The collected data were analysed statistically. Findings – The results of the findings led to the conclusion that the quantity surveyors were not meeting the expectations of other players. Therefore, for competitiveness, quantity surveyors need to better meet demand expectations. Research limitations/implications – This findings of this research are constrained to the services or functions that the quantity provide in the construction industry. Practical implications – This knowledge is valuable to academic institutions that offer quantity surveying programmes, to practicing quantity surveyors, governments, and other players in the construction industry. It will allow quantity surveyors to reconcile supply and demand expectations. Originality/value – There is no known conclusive empirical study on services offered by quantity surveyors in any emerging markets. Therefore, the findings offer a fresh understanding on the services of quantity surveyors not only in Nigeria but elsewhere. While some of the services are common, others are peculiar to emerging markets.


2014 ◽  
Vol 44 (4) ◽  
pp. 310-323 ◽  
Author(s):  
Ana Tominc

Purpose – The purpose of this study is to demonstrate the impact of global celebrity chefs and their discourse about food on the genre of cookbooks in Slovenia. Design/methodology/approach – Focusing this discourse study on cookbook topics only, the analysis demonstrates the relationship between the aspirations of local celebrity chefs for the food culture represented globally by global celebrity chefs, such as Oliver, and the necessity for a local construction of specific tastes. While the central genre of TV celebrity chefs remains TV cooking shows, their businesses include a number of side products, such as cookbooks, which can be seen as recontexualisations of TV food discourse. Findings – Hence, despite this study being limited to analysis of cookbooks only, it can be claimed that the findings extend to other genres. The analysis shows that local chefs aspire to follow current trends, such as an emphasis on the local and sustainable production of food as well as enjoyment and pleasure in the form of a postmodern hybrid genre, while, on the other hand, they strive to include topics that will resonate locally, as they aim to represent themselves as the “new middle class”. Originality/value – Such an analysis brings new insights into the relationship between discourse and globalisation as well as discourse and food.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Meng Ee Wong ◽  
YingMin Lee

PurposeThis study explored in-service educators' experience of using the Wisconsin Assistive Technology Initiative (WATI) for assistive technology (AT) decision-making within Singapore schools.Design/methodology/approachThe study adopted a qualitative design. Eight educators across both mainstream and special education schools were introduced to the WATI framework which they subsequently employed as a trial experience for a student under their care. Written feedback gathered from participants was analysed to identify common issues and themes regarding the use of the WATI framework for AT decision-making.FindingsThe comprehensive consideration of a broad scope of different factors, provision of a structured process for AT decision-making, as well as a common language for use by different stakeholders emerged as key benefits of implementing the WATI. Challenges encountered include administrative struggles in gathering different stakeholders together, time and resource constraints and difficulties in loaning AT devices for trial use.Practical implicationsBased on educators' feedback, recommendations to facilitate the adoption of the WATI for AT decision-making within Singapore schools are discussed and considered. This study also highlights the need for greater AT instruction within both preservice and in-service teacher preparation programmes in Singapore.Originality/valueSchools in Singapore currently rarely adopt any frameworks in place to guide educators through a systematic process of AT consideration. It is anticipated that this study will spearhead and drive the adoption of systematic frameworks such as the WATI for better AT decision-making within Singapore schools.Peer reviewThe peer review history for this article is available at: https://publons.com/publon 10.1108/JET-03-2021-0015


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Thilini Cooray ◽  
Samanthi Senaratne ◽  
Nuwan Gunarathne ◽  
Roshan Herath ◽  
Dileepa Neelangi Samudrage

Purpose This paper aims to examine the coverage of and trends in reporting content elements in the integrated reports of the Sri Lankan companies following the International Integrated Reporting Framework (IIRF). Design/methodology/approach Based on a comprehensive checklist developed on the content elements of the IIRF, 171 corporate integrated reports were content-analyzed over a period of three years. The results were theorized subsequently using the legitimacy theory. Findings The study identifies that the extent of and trend in the coverage of content elements of the IIRF have increased during the period under consideration despite some under-addressed areas. It indicates that Sri Lankan companies are making progress in the preparation of integrated reports in line with the IIRF, which provides evidence in support of both strategic and institutional perspectives of the legitimacy theory because of the proactive actions taken by managers to acquire legitimacy along with the other normative and mimetic pressures available in the IR landscape. Originality/value This is one of the first studies that evaluate the compliance of IR adopters with the IIRF overtime in the entirety of a single country. It also develops a comprehensive index to capture the disclosure requirements of IR and extends the analysis to a voluntary context using both strategic and institutional perspectives of the legitimacy theory.


2018 ◽  
Vol 46 (3) ◽  
pp. 137-146
Author(s):  
Aysun Bozanta ◽  
Birgul Kutlu

Purpose The purpose of this study is to figure out the visiting behaviors of the users who have different characteristics on Twitter. Design/methodology/approach The visit history of users who share their Foursquare check-ins on Twitter and the characteristics of visited venues (category, check-in count, tip count, like count, rating, and price tier) was collected with Foursquare API. In addition, the number of followers, friends, tweets and favorite-count were collected via Twitter API. First, users were clustered according to their Twitter related attributes. After that, profiling was applied on clusters according to the characteristics of the venues that were visited by the users. Findings Clustering analysis generated three clusters, namely, ordinary, talkative and popular. For each cluster, the visited venues were investigated according to the price classification, check-in, like, tip counts and the categories. The users in ordinary class prefer cheaper venues rather than talkative and popular users. On the other hand, popular users prefer the venues with the highest average number of check-ins, likes and tip counts. The top two categories for all clusters are cafe and shopping mall. Originality/value This study differentiates from the other studies in the literature by examining the data from Twitter with clustering and profiling these clusters with Foursquare data to understand venue preferences of Twitter users having various characteristics. The findings of this study will provide new insights for business owners to understand the customers more comprehensively and design better marketing strategies.


Kybernetes ◽  
2018 ◽  
Vol 47 (5) ◽  
pp. 854-872 ◽  
Author(s):  
Kaiying Cao ◽  
Qiushi Bo ◽  
Yi He

Purpose This paper aims to study whether the recycling of a third party competes with the trade-in service of a manufacturer, and explores the optimal trade-in and third-party collection authorization strategies for the manufacturer. Design/methodology/approach According to whether to authorize a third party to collect its used products, the manufacturer has two choices: one is not authorization (NA); the other is authorization (A). This paper uses profit-maximization model to investigate the optimal decisions of the manufacturer and the third party under NA and A, respectively, and then explores which choice is better for the manufacturer. Findings It is observed that there is a competition between trade-in service and third-party recycling when the durability parameter of the used product is relatively small. Moreover, when the durability parameter of the used product is relatively large, A is always better choice for the manufacturer; otherwise, NA is a better choice except for the case that the unit trade-in subsidy is low and the salvage of the used product is high. Practical implications These results provide managerial insights for the manufacturer and the third party to make decisions in the field of recycling. Originality/value This paper is among the first papers to study the competition between trade-in program and third party’s collecting program under government’s trade-in subsidy policy. Moreover, this paper presents the conditions under which the manufacturer should authorize or not authorize the third party to collect its used products.


2018 ◽  
Vol 46 (4) ◽  
pp. 21-27 ◽  
Author(s):  
Vladyslav Biloshapka ◽  
Oleksiy Osiyevskyy

Purpose Defines clear steps for growth planning that support answers to the crucial question: How and where are you planning to scale up the business and what talent do you need to implement this? Design/methodology/approach As the “Business model value matrix” shows, having ‘happy customers’ is only one determinant of a business model’s success. The other essential block of diagnostic questions deals with the current state and prospects of the firm’s growth. Findings We found that companies that have found ways to keep their business models in a winner’s state can provide clear, evidence-based answers to questions about growth opportunities and risks, while their less successful peers have difficulty addressing the issues. Continuous collecting and analyzing of this information allows successful companies to embrace the strategy-as-learning model of development, built around active learning and proactive adjustment to evolving environment. Practical implications To develop a strategy for moving to and sustaining the Winner state, managers must clearly articulate and test a set of hypotheses about the mechanisms of their company’s growth. The first step on this path is related to obtaining a clear view on the factors that underpin the current financial performance. Originality/value High-performance cultures make sure that each manager has the clear answers to the questions of value, growth and digitization in order to learn, experiment and implement the company business model agenda. The unproductive cultures, on the other hand, are sustained by managerial teams that usually do not have the answers to these crucial questions, but are very good at political games.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Janet Anderson

Purpose The purpose of this viewpoint paper is to reflect on both the technological and the humanities aspects of working in the digital humanities. Design/methodology/approach The author completed her academic career as Professor of Digital Humanities (DH) at the University of Brighton, UK. In terms of approach, she looks back over 25 years of working in this domain, which she entered as a scientist in contrast to most of the other academics at that time who came from the humanities. She delineates her academic journey that passed through various disciplines/fields. Findings The author reflects upon her entire career, starting with decisions made at school, to see how they have affected her contribution to DH. She concludes that a deep understanding of technological issues is fundamental to making sense of such complex fields as Big Data and its effect on humanities research in particular and society in general. She also draws attention to the loss of several highly technical, specialised and practical DH teams, which were replaced with ones whose focus is on DH discourse. Originality/value The author is writing as one of the very few scientists who belonged to the new area of history and computing in the mid-1990s.


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