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Article
Publication date: 2 May 2018

Myung Suh Lim and Junghyun Kim

The purpose of this paper is to investigate: first, the effects of a user’s grandiosity on the loneliness of another user on Facebook who detected it in terms of his/her…

Abstract

Purpose

The purpose of this paper is to investigate: first, the effects of a user’s grandiosity on the loneliness of another user on Facebook who detected it in terms of his/her well-being status; second, the mediational role of envy between grandiosity and loneliness; and, third, whether different effects are given on narcissism, envy, and loneliness depending on social or para-social relationships on Facebook.

Design/methodology/approach

This study’s focus is to investigate how observing others’ grandiose behaviors impact on individuals’ feeling of loneliness. The authors propose that this relationship is mediated by the feeling of envy. The authors further postulate that social relationships that participants may have with other Facebook users would play a key role in feeling different types of envy (i.e. malicious vs benign). Therefore, the current study employed a 2 (levels of grandiosity: high vs low) × 2 (social relationship: para-social vs social) between-subjects design.

Findings

The authors found that one’s grandiosity as reflected on Facebook significantly affects other users’ loneliness through malicious envy. However, no moderated mediation via envy (either benign or malicious) was found within the social relationship group.

Originality/value

Social comparison generated by the use of Facebook was found to have an effect on the user’s loneliness through the mediation of envy. In particular, the possibility that such effects could be triggered in para-social relationships was identified.

Details

Information Technology & People, vol. 31 no. 3
Type: Research Article
ISSN: 0959-3845

Keywords

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Article
Publication date: 4 December 2018

Byung-Hyun Shin, Dohyung Kim, Sanghyup Park, Myungwon Hwang, Junghyun Park and Wonsub Chung

The secondary phase decreased the corrosion resistance because of the segregation of Cr and Mo. Therefore, this paper aims to study the precipitation condition and the…

Abstract

Purpose

The secondary phase decreased the corrosion resistance because of the segregation of Cr and Mo. Therefore, this paper aims to study the precipitation condition and the effect of secondary phase with volume fraction on corrosion behavior.

Design/methodology/approach

Secondary phase precipitated approximately from 375°C to 975°C because of saturated Cr and Mo at grain boundary by growth of austenite. Therefore, heat treatment from 800°C to 1,300°C was applied to start the precipitation of the secondary phase.

Findings

The secondary phase is precipitated at 1,020°C because of segregation by heterogeneous austenite. The growth of austenite at 1,000°C needs the time to saturate the Cr and Mo at grain boundary. When the volume fraction of austenite is 56 per cent (14 min at 1,000°C), the secondary phase is precipitated with grain boundary of austenite. The secondary phase increased the current density (corrosion rate) and decreased the passivation. That is checked to the critical pitting temperature (CPT) curves. The 1 per cent volume fraction of secondary phase decreased CPT to 60°C from 71°C.

Research limitations/implications

The precipitation of secondary phase not wants anyone. Casted super-duplex stainless steel (SDSS) of big size precipitates the secondary phase. This study worked the precipitation condition and the suppression conditions of secondary phase.

Social implications

Manufacturers need precipitation condition to make high-performance SDSS.

Originality/value

The corrosion resistance of SDSS is hard the optimization because SDSS is dual-phase stainless steel. The precipitation of the secondary phase must be controlled to optimize of the corrosion resistance of SDSS. Anyone not studied the precipitation condition of secondary phase and the effect of secondary phase with volume fraction on corrosion behavior of SDSS.

Details

Anti-Corrosion Methods and Materials, vol. 66 no. 1
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 14 August 2017

Alisher Tohirovich Dedahanov, Changjoon Rhee and Junghyun Yoon

The purpose of this paper is to investigate the mediating role of innovative behavior on the relationships between organizational structure, such as centralization…

Abstract

Purpose

The purpose of this paper is to investigate the mediating role of innovative behavior on the relationships between organizational structure, such as centralization, formalization, integration, and organizational innovation performance.

Design/methodology/approach

The authors collected data from 140 functional managers of manufacturing organizations in the Republic of Korea. The authors used structural equation modeling procedure to evaluate the validity of proposed hypotheses.

Findings

The results suggest that innovative behavior mediates the links among centralization, formalization, and organizational innovation performance. However, the findings indicate that innovative behavior does not mediate the relationship between integration and organizational innovation performance.

Originality/value

This work is the first to examine the mediating role of innovative behavior on the associations among centralization, integration, and organizational innovation performance.

Details

Career Development International, vol. 22 no. 4
Type: Research Article
ISSN: 1362-0436

Keywords

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Article
Publication date: 5 September 2018

Byung-Hyun Shin, Junghyun Park, Jongbae Jeon, Sung-bo Heo and Wonsub Chung

In this study, super duplex stainless steel (SDSS) was heat-treated. The purpose of this study is to assess the effect of the cooling rate after heat treatment on the…

Abstract

Purpose

In this study, super duplex stainless steel (SDSS) was heat-treated. The purpose of this study is to assess the effect of the cooling rate after heat treatment on the pitting corrosion of SDSS.

Design/methodology/approach

The heat treatment from 1,000°C to 1,300°C was applied to SDSS to check the effect of the cooling rate.

Findings

The heat treatment temperature produced a different SDSS microstructure, and the cooling rate led to the growth of austenite. The casted SDSS indicated the presence of heterogeneous austenite, and the precipitation secondary phase under 1.6 per cent precipitated to bare metal. By applying heat treatment and cooling SDSS, its corrosion resistance changes because of the change in the chemical composition. The cooling rate at 5,600 J/s has the highest critical pitting temperature (CPT) at 1,100°C, and the cooling rate at 1.6 J/s has the highest CPT at 1,200°C. Low cooling rate (0.4 J/s) made the secondary phase at all temperature range.

Research limitations/implications

The effect of secondary phase not consider because that is well known to decreasing corrosion resistance.

Practical implications

Solution annealing is taken into account to optimize the corrosion resistance. But that is not consider the cooling rate at each temperature. This study assessed the effect of the cooling rate at each temperature point.

Social implications

Manufacturers need to know the effect of the cooling rate to optimize the corrosion resistance, and this study can be applied in the industrial scene.

Originality/value

SDSS is hard the optimization because SDSS is a dual-phase stainless steel. Corrosion resistance can be optimized by controlling heat treatment temperature and the cooling rate. Anyone not studied the effect of the cooling rate at each temperature. The effect of the cooling rate should be considered to optimize the corrosion resistance.

Details

Anti-Corrosion Methods and Materials, vol. 65 no. 5
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 4 June 2018

Ana Brochado, Pedro Dionísio and Maria Carmo Leal

A key concern in sports sponsorship decisions is knowing under what conditions sponsorship can effectively act as a brand building tool. The purpose of this study is to…

Abstract

Purpose

A key concern in sports sponsorship decisions is knowing under what conditions sponsorship can effectively act as a brand building tool. The purpose of this study is to list attributes to use when examining congruency in the sponsorship of national football teams. The second aim was to test whether being a client of the sponsor brand and being involved with the sponsee moderates the relationship between image congruence and sponsorship response.

Design/methodology/approach

Data were collected on four sponsors of the Portuguese national team, just before the 20th Fédération Internationale de Football Association World Cup. Analyses were conducted on a representative national sample of fans. The research design encompassed a two-step approach. First, qualitative analysis identified the main attributes that fans associate with the national team. In the second quantitative phase, moderated regression analysis was used to test the proposed model.

Findings

This study confirmed sponsor–sponsee congruence in seven attributes (i.e. national symbol, strength, strong emotions, happiness, optimism, connection and positive feelings) enhances positive brand image and fans’ involvement with the national team moderates this relationship. Positive sponsorship outcomes tend to be higher for sponsors when fans are currently clients of the sponsor brand.

Originality/value

This study adds to previous research by using mixed methods to study sponsor–sponsee congruence regarding national teams and by testing whether fans being clients of sponsors and being involved with sponsees moderate sponsor–sponsee congruence.

Details

Journal of Business & Industrial Marketing, vol. 33 no. 5
Type: Research Article
ISSN: 0885-8624

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Article
Publication date: 6 May 2021

Zhe Wang, Xisheng Li, Xiaojuan Zhang, Yanru Bai and Chengcai Zheng

How to model blind image deblurring that arises when a camera undergoes ego-motion while observing a static and close scene. In particular, this paper aims to detail how…

Abstract

Purpose

How to model blind image deblurring that arises when a camera undergoes ego-motion while observing a static and close scene. In particular, this paper aims to detail how the blurry image can be restored under a sequence of the linear model of the point spread function (PSF) that are derived from the 6-degree of freedom (DOF) camera’s accurate path during the long exposure time.

Design/methodology/approach

There are two existing techniques, namely, an estimation of the PSF and a blind image deconvolution. Based on online and short-period inertial measurement unit (IMU) self-calibration, this motion path has discretized a sequence of the uniform speed of 3-DOF rectilinear motion, which unites with a 3-DOF rotational motion to form a discrete 6-DOF camera’s path. These PSFs are evaluated through the discrete path, then combine with a blurry image to restoration through deconvolution.

Findings

This paper describes to build a hardware attachment, which is composed of a consumer camera, an inexpensive IMU and a 3-DOF motion mechanism to the best of the knowledge, together with experimental results demonstrating its overall effectiveness.

Originality/value

First, the paper proposes that a high-precision 6-DOF motion platform periodically adjusts the speed of a three-axis rotational motion and a three-axis rectilinear motion in a short time to compensate the bias of the gyroscope and the accelerometer. Second, this paper establishes a model of 6-DOF motion and emphasizes on rotational motion, translational motion and scene depth motion. Third, this paper addresses a novel model of the discrete path that the motion during long exposure time is discretized at a uniform speed, then to estimate a sequence of PSFs.

Details

Sensor Review, vol. 41 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

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