modelling analysis
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2022 ◽  
Vol 10 (1) ◽  
pp. 64
Pengpeng Wang ◽  
Haixia Gong ◽  
Liquan Wang ◽  
Feihong Yun ◽  
Yibo Nan ◽  

A deep-water bolt flange automatic connection tool plays a very important role in the process of offshore oil exploitation and transportation. In the connection process, the alignment error of bolts and nuts is the key factor to ensure the connection process is successful. Using the kinematics modeling method, this paper created the alignment error model of the deep-water bolt flange automatic connection tool and analyzed the influence of manufacturing accuracy on the alignment error of bolts and nuts through computer simulation software. Based on the error matching design method, the manufacturing accuracy of parts were optimized with a part-size-based priority sequence to ensure the bolt–nut alignment error was within the allowable limits. The land tests, the pool tests and the sea test were carried out. The test results showed that the bolt and nut can be connected in the subsea environment reliably.

With the automobile sector pacing the tracks among their competitors to lead the market and adopting eco-friendly technologies, a much economic and vital field of making use of the manufactured product beyond its useful life span is widely neglected. This paper throws light on the necessity for implementing and highlights the various reasons for which these guidelines have not come to the attention of the responsible organizations including law making agencies, automobile manufacturers and as well the consumers. An interpretive structural modelling analysis is made to point out ten driving factors in consultation with various experts from the relevant fields and the results provide guidance to how far the idea of design for dis-assembly and re-manufacturing has sought the world for the sustainability of the automobile manufacturers in the industry, for the days to come.

2022 ◽  
Vol 14 (1) ◽  
pp. 1-23
Tanja Kamenjarska ◽  
Mario Spremić ◽  
Ivan Miloloža

The ability to innovate is essential for achieving a competitive position, and digital innovations have become one of the main drivers of competitive advantage. The factors that affect the degree of innovation (innovation efforts, competitive priorities, market strategy, the internal organisational atmosphere) impact the financial performance of insurance companies considering the market conditions. In order to shed some light on that research gap in post-transition countries, survey research has been conducted on a sample of insurance companies in the Republic of North Macedonia. The results obtained from the structural equation modelling analysis, which seeks to determine the structural relationship between the measured variables and the latent constructions, reveal positive effects of innovation performance on the profitability of insurance companies.

2021 ◽  
pp. 135910532110649
Arunangshu Ghoshal ◽  
Ronan E O’Carroll ◽  
Eamonn Ferguson ◽  
Lee Shepherd ◽  
Sally Doherty ◽  

Although medical mistrust (MM) may be an impediment to public health interventions, no MM scale has been validated across countries and the assessment of MM has not been explored using item response theory, which allows generalisation beyond the sampled data. We aimed to determine the dimensionality of a brief MM measure across four countries through Mokken analysis and Graded Response Modelling. Analysis of 1468 participants from UK ( n = 1179), Ireland ( n = 191), India ( n = 49) and Malaysia (n = 49) demonstrated that MM items formed a hierarchical, unidimensional measure, which is very informative about high levels of MM. Possible item reduction and scoring changes were also demonstrated. This study demonstrates that this brief MM measure is suitable for international studies as it is unidimensional across countries, cross cultural, and shows that minor adjustments will not impact on the assessment of MM when using these items.

2021 ◽  
Vol 1 (2) ◽  
pp. 323-334
Adnan Adnan ◽  
Aiyub Yahya

The study presents the results of the impact of reinventing potential and financial independence on the entrepreneur character of millennial generation through social media in the era marketing 4.0. The data were obtained from a survey of 448respondents(student) from fourdepartement of Faculty Economic and Bussiness Malikussaleh University in Indonesia. The following statistical methods were used: descriptive statistics and structural eqution modelling analysis. The study found that reinventing potential, financial independence and social media has a significant effect on the entrepreneurial character of the millennial generation in IndonesiaAnother finding: Social media did not moderate the relationship between reinventing potential and the entrepreneurial character of the millennial generation, but social media was found to moderate the relationship between financial indenpendence and the entrepreneurial character of the millennial generation in the marketing era 4.0.

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