• Journal of Welding and Joining
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• v.16 no.1
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• pp.77-87
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• 1998

This paper deals with the effect of laser welding parameters on the weld formation. Thin steels for automotive application were prepared so as to be welded with high power carbon dioxide laser system. Major process parameters were position of focus and travel speed. The effect of shielding gas was also discussed by employing the high speed photometry. Test results showed that the optimal position of focus varied in accordance with the joint configuration; bead-on-plate, butt or lap welding. It was recommended that the position of focus for the lap welding be located at slightly inner part of the material to be welded. In this case, however, it was noticeable that the weld penetration ratio, d/t$_{0}$ dropped drastically at the critical region. Results also demonstrated that both the bead width and penetration reduced as the travel speed increased. The penetration ratio showed two distinct regions; stabilized zone at the lower range of the travel spped and sudden drop zone at the higher range of travel speed. Lower limit of the penetration for acceptable weld was proved to be about 90% of the parent metal thickness based on the physical properties of the weld. Mixed gas application for both the shielding of molten metal and laser induced plasma control was recommended as far as the penetration was concerned.d.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.1
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• pp.431-442
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• 2021

The purpose of this study is to identify the effect of seasonality on the tourism and hospitality industry in ArugamBay after the civil unrest across the different firms in tourism. This study uses both quantitative and qualitative analyses using primary data. Fifty questionnaires give valid responses that were used for analysis. Out of 80 questionnaires, the average response rate was 62.5%. An exploratory study, descriptive analysis, and an Independent Sample Test were used to identify the potentials of tourism, the overall impact of seasonality, and the impact of seasonality across different travel and tourism sector of the study area. According to the results, 83%, 75%, 68%, and 59.9% of firms agreed on the impact of seasonality on environment, workers, supply, and quality of services, respectively in ArugamBay. It also concluded that the impact of seasonality on workers, supply, and quality of services is not the same among all the categories of firms except environment. The variation in seasonality in the travel and tourism sector is because of the lack of regional planning considering the types of firms in the tourism sector. Also, insufficient resources and lack of consistent capacity between various firms in the sectors are also course variations because of the effect of seasonality.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.5
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• pp.813-823
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• 2023

In this study, microstructure, hardening layer hardness, and case depth were evaluated after induction hardening(IH) of base metal specimen(BM) treated with annealing and quenching-tempering specimen(QT) treated with quenching and tempering. The microstructure after IH was significantly influenced by the microstructure before IH and the induction coil heating movement speed, but the effect of the induction frequency was very small. The hardness of the hardened layer at an induction coil heating movement speed of 15 mm/s or less was more influenced by the microstructure before IH than the induction coil travel speed and induction frequency. The induction coil travel speed has the significantly effect on the case depth, the induction frequency has effect and the microstructure before IH has a small effect.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.445-450
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• 2019

lock in effect This study aims to examine the viewing pattern of travel vlog on video-sharing platform YouTube. Preliminary survey was conducted with in-depth interviews on the usability and sensibility aspects of creating pleasurable interfaces model. As a result, first, viewers obtains general information on travel using travel vlog. Second, there were difficulties from the informational quantity. Third, the contents marketing using travel vlog could have limitation when it comes to the consistency of product's exposure which common mass media advertisement format have. Improvements driven from this study may provide insight in contents marketing strategy to travel-related companies and provide practical help to creators in contents production.

• The Journal of Information Systems
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• v.31 no.2
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• pp.263-288
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• 2022

Purpose Recently, the tours and activities (TAA) market provided by online travel agencies (OTA) has grown rapidly and has become the third-largest in the travel industry. However, compared to its practical proliferation, TAA has not yet received much academic attention. This study aims to discuss the effect of the four domains (e.g., educational, entertainment, escapist, and esthetic experiences) of the experience economy on users' memorable tourism experiences (MTE), satisfaction, and loyalty in the context of TAA. Moreover, the study investigates how this mechanism varies depending on the tour guides' professional competency. Design/methodology/approach This study developed a research model based on the S-O-R framework. Using the survey method, data were collected from consumers who had experienced TAA offered by OTA more than once within one year. A total of 307 respondents (consumers) were used for the final analysis, and developed hypotheses were tested using a structural equation model technique. Findings The results of this study are as follows. First, educational, entertainment, and escapism experiences in the experience economy positively affect MTE. Second, within the experience economy, entertainment and esthetic experiences have a positive effect on satisfaction. Third, MTE positively influences satisfaction, repurchase intention, and recommendation intention. Fourth, satisfaction has a positive impact on repurchase and recommendation intentions. Finally, according to the level of tour guides' professional competency, there is a significant difference in the effect of escapism experience on MTE/satisfaction.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.2D
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• pp.233-239
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• 2006

Most research for until at now link travel time were research for mean link travel time calculate or estimate which uses the average of the individual vehicle. however, the link travel time distribution is divided caused by with the impact factor which is various traffic condition, signal operation condition and the road conditional etc. preceding study result for link travel time distribution characteristic showed that the patterns of going through traffic were divided up to 2 in the link travel times. therefore, it will be more accurate to divide up the link travel time into the one involving delay and the other without delay, rather than using the average link travel time in terms of assessing the traffic situation. this study is it analyzed transit hour distribution characteristic and a cause using examine to the variables which give an effect at link travel time distribute using simulation program and determinate link travel time distribute ratio estimation model. to assess the distribution of the link travel times, this research develops the regression model and the fuzzy model. the variables that have high level of correlations in both estimation models are the rest time of green ball and the delay vehicles. these variables were used to construct the methods in the estimation models. The comparison of the two estimation models-fuzzy and regression model- showed that fuzzy model out-competed the regression model in terms of reliability and applicability.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.365-373
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• 2016

The purpose of this research was made to see how Chinese tourists change their destination according to their travel motivation and what affects on their satisfaction. The result follows as below. First, there is partially difference in choosing destination according to their motivation. Secondly, travel motivation affects their satisfaction partially in positive way. The results of this research can be found in what was the significance empirically analyze the relationship between Chinese tourists in the tourist motivation and choice properties, satisfied. Implications through the study is as follows. First, specialized travel destinations must be developed and constructed to increase number of Chinese tourists. Second, oreover, contents that match with their travel motivation must be developed to improve Chinese tourist's satisfaction.

• Ocean and Polar Research
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• v.30 no.2
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• pp.141-148
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• 2008

This paper aims at estimating consumer surplus for recreational sea fishing in Tongyeong coastal area using individual travel cost method. A Poisson model (PM), a negative binomial model (NBM), a truncated Poisson model (TPM), and a truncated negative binomial model (TNBM) are applied for individual travel cost method in order to account characteristics of count data (non-negative discrete data.) The survey was conducted for 462 inshore anglers using personal interview method in Tongyeong during July and October 2007. Respondents were asked about how often they do fishing, travel costs, catch, income, and so on. Because of over-dispersion problem in PM and TPM, NBM and TNBM were considered to be more appropriate statistically. All parameters estimated are statistically significant and theoretically valid. As the results based on TNBM, consumer surplus per trip was estimated to be 183,486 won, total consumer surplus per person and per year 3,399,658 won, and the marginal effect of consumer surplus on % changes in catch rate is 185,372 won.

• Journal of Korean Society of Transportation
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• v.25 no.3
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• pp.19-28
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• 2007

Korea's national highways, which emphasize a high level of mobility, serve primarily intercity travel and are used as a detour for freeways. However. at the present. the highways do not have consistent geometric features or other characteristics: for example. some highways have full access control and others have uncontrolled access. Generally, geometric and traffic conditions affect Pronouncedly travel speeds in the highway sections. This study focused on the effect of signalized intersection relative factors on the speeds: signalized intersection densities, signal phases, and volume levels. The study shows that signalized intersection density was the strongest variable affecting the travel speeds: the speeds held fairly constant over intersection densities below 0.3 intersections/km, decreased sharply through intersection density of 0.7 intersections/km. and appeared constant at the lowest level over intersection densities above 0.7 intersections/km. The results also indicate that the effect of signal and traffic volume levels on the speeds was similar to that of the signalized intersection density.

• Journal of the Society of Disaster Information
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• v.15 no.2
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• pp.198-205
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• 2019

Purpose: This study was conducted and analyzed using statistical techniques to examine the impact of fear of risk committed by risk committed overseas on people who are about to travel abroad. Method: In the event of a risk, fear of a risk occurs, and fear of a risk adversely affects people's daily lives, and in the event of a decline in daily life, affecting the economy and social activities of the area, a small risk often has a huge impact on society. In particular, the fear of risk committed abroad has an impact on overseas activities as overseas travel has been activated in time for the global era. Result and Conclusion: Therefore, according to the research, the fear of crimes committed overseas has a negative effect on the choice of overseas travel.