Longitudinal-transverse coupled vibrations of variable-height asymmetric beams: Modeling, analysis, and case study

2022 ◽  
Vol 167 ◽  
pp. 108504
Author(s):  
Pengpeng Yu ◽  
Liang Wang ◽  
Jiamei Jin
Keyword(s):  
Coupled Vibrations ◽  
Modeling Analysis

A topic modeling analysis of Korea’s T&I research trends in the 2010s

Babel ◽  
2021 ◽  
Author(s):  
Changsoo Lee
Keyword(s):  
Topic Modeling ◽  
Research Output ◽  
Research Trends ◽  
Korean Language ◽  
Modeling Analysis ◽  
Trends Over Time ◽  
New Research ◽  
Topic Structure ◽  
Manual Classification

Abstract The present study aims to demonstrate the relevance of topic modeling as a new research tool for analyzing research trends in the T&I field. Until now, most efforts to this end have relied on manual classification based on pre-established typologies. This method is time- and labor-consuming, prone to subjective biases, and limited in describing a vast amount of research output. As a key component of text mining, topic modeling offers an efficient way of summarizing topic structure and trends over time in a collection of documents while being able to describe the entire system without having to rely on sampling. As a case study, the present paper applies the technique to analyzing a collection of abstracts from four Korean Language T&I journals for the 2010s decade (from 2010 to 2019). The analysis proves the technique to be highly successful in uncovering hidden topical structure and trends in the abstract corpus. The results are discussed along with implications of the technique for the T&I field.

scholarly journals An Empirical Research On The Antecedent-Consequence Integrating Model Of Recreationist-Environment Fit: A Case Study On Sport Tourists In Guaninting Waters Of Penghu

2015 ◽  
Vol 31 (3) ◽  
pp. 1073
Author(s):  
Cheng-Lung Wu
Keyword(s):  
Significant Influence ◽  
Structural Equation ◽  
Equation Modeling ◽  
Future Research ◽  
Effective Response ◽  
Destination Loyalty ◽  
Tourism Management ◽  
Modeling Analysis ◽  
Restorative Environment

<p><em>The purpose of this research is to verify the validity of an antecedent-consequence integrating model of recreationist-environment fit (R-E fit). This study selected the marine sport tourists in the Guaninting waters of Penghu as the subjects. The research used a questionnaire survey with 300 questionnaires handed out and returned. Of these, 253 were valid and 47 were invalid; therefore, the effective response rate was 84.3%. Then the associated data were collected for descriptive statistical analysis and structural equation modeling analysis using statistical software SPSS20.0 and Smart PLS 2.0. The research results reveal the following conclusions: (1) Familiarity has significant influence on R-E fit; (2) Self-efficacy has significant influence on R-E fit; (3) Restorative environment features have significant influence on R-E fit; (4) Recreational environment hassles have little significant influence on R-E fit; (5) R-E fit has significant influence on flow experience; (6) R-E fit has significant influence on recreational satisfaction; and (7) R-E fit has significant influence on destination loyalty. Accordingly, at the end of this study, suggestions </em><em>are offered for future research, along with implications for tourism management.</em></p>

Digital Elevation Modeling Analysis for Investigation of Gravity Hill Phenomena

2018 ◽  
Vol 7 (3) ◽  
pp. 25-38
Author(s):  
Rehan Jamil
Keyword(s):  
Magnetic Force ◽  
Geospatial Data ◽  
Kriging Method ◽  
The Road ◽  
Modeling Analysis ◽  
Digital Elevation ◽  
Significant Difference ◽  
Average Slope ◽  
Engine Power

This article presents an investigation of the gravity hill phenomena by analysing its geospatial data. Wadi Al Baida located in Al Madinah, Saudi Arabia has been taken as a case study. Wadi Al Baida is listed as one of the sites in the world where the said phenomena exists, but the site has been famous for any sort of magnetic force because the vehicles move uphill and on flat road without any engine power on. The topography of the valley is studied by using the geospatial data of the area and by creating Digital Elevation Models (DEMs) based on Point Kriging method of gridding. The results show that the area has natural slope and there is a significant difference in the elevations of the start and the end point of the valley. A longitudinal profile is also generated to validate the results obtained by DEMs and it is found that the road has an average slope of 2.6% which makes the vehicles and rolling objects move on their own due to the force of gravity. Also, the concept of gravity hill has been explained with the help of a diagram which is easy to understand by the readers.

Energy Saving and Efficiency in the Process of Oil Shale Extraction: Case Study and Modeling Analysis

2021 ◽  
Author(s):  
Mohammad Al-Addous ◽  
Mais Baqain ◽  
Yaqoub Al-Khasawneh Yaqoub Al-Khasawneh ◽  
Mathhar Bdour ◽  
Mustafa Jaradat ◽  
...  
Keyword(s):  
Energy Saving ◽  
Oil Shale ◽  
Modeling Analysis

scholarly journals Analyzing Electric Vehicle Load Impact on Power Systems: Modeling Analysis and a Case Study for Maldives

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
A. Suski ◽  
T. Remy ◽  
D. Chattopadhyay ◽  
C.S. Song ◽  
I. Jaques ◽  
...  
Keyword(s):  
Power Systems ◽  
Electric Vehicle ◽  
Systems Modeling ◽  
Vehicle Load ◽  
Modeling Analysis ◽  
Load Impact

scholarly journals The Effects of Competence and Motivation on Performance Mediated by Organization Commitment (Case Study Indonesian Government Agencies)

2021 ◽  
Vol 8 (1) ◽  
pp. 77-89
Author(s):  
Rhian Indradewa ◽  
Stefano Randi
Keyword(s):  
Structural Equation ◽  
Sampling Technique ◽  
Performance Appraisals ◽  
Equation Modeling ◽  
Government Agencies ◽  
Indonesian Government ◽  
Organization Commitment ◽  
Modeling Analysis ◽  
Competence Motivation

Performance improvement in the context of government agencies is very important. There are several factors that can affect employee’s performance. These factors serve to ascertain whether the performance will be increased or decreased by involving these factors in performance appraisals. The aim of this study is to analyze the effect of competence and motivation on performance mediated by organization commitment. The population used in this study were employees in Indonesian government agencies. The respondents were 186 of Ministry of Home Affairs employees. The sampling technique used was the Convenience Sampling method. The analytical model used in this study was descriptive and Structural Equation Modeling analysis with LISREL Program. It is concluded that commitment of organization contributes to employee’s performance and is influenced by both, the employee’s competence and motivation, whereas the competence and the motivation do not give any effect to their performance. Keywords: Competence, Motivation, Organization Commitment, Performance.

How Safe Are Pre-Northridge WSMFs? A Case Study of the SAC Los Angeles Nine-Story Building

1999 ◽  
Vol 15 (4) ◽  
pp. 765-789 ◽  
Author(s):  
Bruce F. Maison ◽  
David Bonowitz
Keyword(s):  
Los Angeles ◽  
Steel Frame ◽  
Northridge Earthquake ◽  
Analysis And Evaluation ◽  
Modeling Analysis ◽  
Expected Performance ◽  
Frame Buildings ◽  
Steel Frame Buildings ◽  
And Performance

This paper demonstrates a procedure for modeling, analysis, and evaluation of existing steel frame buildings of the type damaged in the 1994 Northridge earthquake. The procedure accounts for Northridge data and incorporates post-Northridge research. It is distinguished from more conventional procedures by the use of fracturing connection elements with randomly assigned rotation capacities. The study confirms and quantifies a number of observations from Northridge. Damage patterns are highly variable, but their global effects are predictable. Many steel frame buildings can sustain substantial damage and still satisfy criteria for “safe” response. Expected performance, however, is measurably less reliable than intended performance, and this has important implications for public policy and performance-based engineering.

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