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1 – 3 of 3Xin Li, ZaiFu Cui, Daoheng Sun, Qinnan Chen, Gonghan He, Baolin Liu, Zhenyin Hai, Guochun Chen, Zhiyuan Jia and Zong Yao
The measurement of heat flux is of importance to the development of aerospace engine as basic physical quantities in extreme environment. Heat radiation is one of the basic forms…
Abstract
Purpose
The measurement of heat flux is of importance to the development of aerospace engine as basic physical quantities in extreme environment. Heat radiation is one of the basic forms of heat transfer phenomenon. The structure optimizing can improve the performance and infrared absorptivity of the thin film sensor.
Design/methodology/approach
This paper designed one kind of thin film heat flux sensor (HFS) with antireflective coating based on transparent conductive oxide thermopile. The introduced membrane structure is so thin that it has little impact on sensor performance. Fabrication of thin film sensors were fabricated by physical vapor deposition (PVD) process.
Findings
The steady-state and dynamic response characteristics of the HFS were investigated by calibration platform. The experimental results shown that the absorptivity of the membrane structure (for1070nm) improved compared with that before optimization. The sensitivity of heat flux gauge was 48.56 µV/ (kW/m2) and its frequency response was determined to be about 1980 Hz.
Originality/value
The thin film HFS uses thermopile based on Indium Tin Oxid and In2O3. The antireflective coating is introduced to hot endpoint of HFS to improve sensitivity on laser thermal source. The infrared optical properties of membrane layer structure were investigated. The steady-state and the transient response characteristics of the heat flux sensor were also investigated.
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Keywords
Xiwei Wang, Yunfei Xing, Yanan Wei, QingXiao Zheng and Guochun Xing
Social media, especially microblog, has become one of the most popular platforms for public opinion dissemination. However, so far few studies have been conducted to explore…
Abstract
Purpose
Social media, especially microblog, has become one of the most popular platforms for public opinion dissemination. However, so far few studies have been conducted to explore information dissemination under the mobile environment. This paper aims to introduce the approach to analyze the public opinion information dissemination in mobile social networks.
Design/methodology/approach
This paper chooses “network attack” as the research topic and extracts 23,567 relevant messages from Sina Microblogs to study the structure of nodes for public opinion dissemination and the characteristics of propagation paths on mobile internet. Public opinion dissemination is compared on both mobile and non-mobile terminals.
Findings
The results reveal the characteristics of public opinion dissemination in mobile environment and identify three patterns of information propagation path. This study concludes that public opinion on mobile internet propagates more widely and efficiently and generates more impact than that on the non-mobile internet.
Social implications
The methods used in this study can be useful for the government and other organizations to analyze and identify problems in online information dissemination.
Originality/value
This paper explores the mechanism of public opinion dissemination on mobile internet in China and further investigates how to improve public opinion management through a case study related to “network attack.”
Details
Keywords
Ting Nie, Zhihua Lian and Hua Huang
The purpose of this paper is to explore the mediating effect of vocational identity and the moderating effect of work values on the relation between career exploration and fit…
Abstract
Purpose
The purpose of this paper is to explore the mediating effect of vocational identity and the moderating effect of work values on the relation between career exploration and fit perception of Chinese new generation employees.
Design/methodology/approach
A survey was conducted to measure variables in this study. Based on review of the related studies about work value, career exploration, vocational identity and fit perception, the authors establish a theoretical model and propose hypotheses. Data were obtained from 647 Chinese post‐1980s generation employees.
Findings
According to the statistical analysis result, the paper demonstrates that career exploration can affect fit perception through mediator of vocational identity; when people have stronger preference to chase for job comfort and security, the relations between career exploration effort, vocational identity and fit perception becomes stronger; once individual has stronger preference for status and independence, the relations between career exploration effort, vocational identity and fit perception becomes weakened.
Research limitations/implications
The data used in this study only came from the employees, although the authors test homologous deviation through Harman single factor test. If the authors can conduct the survey from both employees and their supervisors, it will be better for them to avoid homology bias. Furthermore, more factors need to be considered in the formation of fit perception of Chinese new generation employees.
Originality/value
The paper explains the internal relations between work value, career exploration, vocational identity and fit perception on the basis on of the characteristics of Chinese new generation employees.
Details