• Title/Summary/Keyword: SSTS

Search Result 63, Processing Time 0.024 seconds

Consumer Adoption of Self-Service Technologies: Integrating the Behavioral Perspective with the Technology Acceptance Model

  • ASHOUR, Mohammed L.;AL-QIREM, Raed M.
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.3
    • /
    • pp.1361-1369
    • /
    • 2021
  • Recent technological advancements have had a substantial impact on consumer buying behavior. This research aims to determine the factors affecting consumer behavior related to the adoption of self-service technologies (SSTs). The intended findings of this study are expected to contribute to understanding consumer behavior towards the adoption of SSTs taking into account the logic of two main theories in this regard: the Technology Acceptance Model (TAM) and the assumptions of the Behavioral Perspective Model (BPM). This research follows a triangulation approach. Consequently, a number of semi structured interviews were conducted with experts and executive directors from selected SSTs providers in Jordan. In addition, the convenience sampling technique was employed focusing on current (or) previous users of SSTs in the public and private sectors in Jordan using a self-administrative questionnaire (66% response rate). The results confirmed the influence (direct and indirect) of previous experience and personal initiatives and characteristics on consumer intention to use SSTs. In addition, the results indicated the important role of the mediator variables namely: perceived ease of use (EOU), perceived risk (PR), and perceived usefulness (PU) on consumer attitude towards SSTs which in turn will positively affect consumer intention to use SSTs.

Accuracy Assessment of Sea Surface Temperature from NOAA/AVHRR Data in the Seas around Korea and Error Characteristics

  • Park, Kyung-Ae;Lee, Eun-Young;Chung, Sung-Rae;Sohn, Eun-Ha
    • Korean Journal of Remote Sensing
    • /
    • v.27 no.6
    • /
    • pp.663-675
    • /
    • 2011
  • Sea Surface Temperatures (SSTs) using the equations of NOAA (National Oceanic and Atmospheric Administration) / NESDIS (National Environmental Satellite, Data, and Information Service) were validated over the seas around Korea with satellite-tracked drifter data. A total 1,070 of matchups between satellite data and drifter data were acquired for the period of 2009. The mean rms errors of Multi- Channel SSTs (MCSSTs) and Non-Linear SSTs (NLSSTs) were evaluated to, in most of the cases, less than $1^{\circ}C$. However, the errors revealed dependencies on atmospheric and oceanic conditions. For the most part, SSTs were underestimated in winter and spring, whereas overestimated in summer. In addition to the seasonal characteristics, the errors also presented the effect of atmospheric moist that satellite SSTs were estimated considerably low ($-1.8^{\circ}C$) under extremely dry condition ($T_{11{\mu}m}-T_{12{\mu}m}$ < $0.3^{\circ}C$), whereas the tendency was reversed under moist condition. Wind forcings induced that SSTs tended to be higher for daytime data than in-situ measurements but lower for nighttime data, particularly in the range of low wind speeds. These characteristics imply that the validation of satellite SSTs should be continuously conducted for diverse regional applications.

Interrelationships between Sea Surface Temperatures and Clouds over the Tropical Oceans (열대 해양의 해수면온도와 구름의 상호관계)

  • 송봉근;김영섭;박경원
    • Proceedings of the KSRS Conference
    • /
    • 2001.03a
    • /
    • pp.92-97
    • /
    • 2001
  • The intra-annual and interannual variations of total, high, middle, low clouds, and cloud forcing net solar radiation flux, cloud forcing net long-wave radiation flux, and SSTs over the tropical oceans are investigated with the use of ISCP D2, NCEP/NCAR Reanalysis for January 1983-December 1993. The intra-annual variation of total cloudiness is dominated by high and middle clouds in the western Pacific and central tropical oceans, the interannual variation of total cloudiness is also dominated by high and middle clouds in the central Pacific and Atlantic. The dominant intra-annual and interannual EOFs of total cloudiness have spatially coherent link with those SSTs. For the interannual EOFs, total cloudiness and SSTs are related to E1 nino-Southern Oscillation(ENSO). The second most important intra-annual EOFs of total cloudiness are related to Inter Tropical Convergence Zone(ITCZ). The third most important intra-annual EOFs show coherent relation in the western Pacific. The correlation analysis between cloud radiative effects and SSTs show spatially coherent relation over the tropical oceans even though cloud forcing cooling effect is much higher than heating effect.

  • PDF

Satellite data analysis of the China Coastal Waters in the Seas surrounding Jeju Island, Korea

  • Yoon, Hong-Joo
    • Proceedings of the KSRS Conference
    • /
    • v.1
    • /
    • pp.344-347
    • /
    • 2006
  • China Coastal Water (CCW) usually appears in the seas surrounding Jeju Island annually (June?October) and is very pronounced in August. The power spectrum density (PSD), sea level anomalies (SLAs), and sea surface temperatures (SSTs) were found to peak annually and semiannually. The peaks at intervals of 80-, 60-, and 43-days are considered to be influenced by CCW and the Kuroshio Current. Generally, low-salinity water appears to the west of Jeju Island from June through October and gradually propagates to the east, where CCW meets the Tsushima Current. Empirical orthogonal function (EOF) analysis of SLAs and SSTs indicated that the variance in SLAs and SSTs was 55.70 and 98.09% in the first mode, respectively. The PSD for the first mode of EOF analysis of SLAs was stronger in the western than in the eastern waters because of the influence of CCW. The PSD for the EOF analysis of SSTs was similar in all areas (the Yangtze Estuary and the waters to the west and east of Jeju Island), with a period of approximately 260 days.

  • PDF

The Effects of Technology Readiness and Situational Influences on Attitude and Usage Intention of Self-Service Technology (기술준비도와 상황적 영향이 셀프서비스기술 태도 및 사용의도에 미치는 영향)

  • Mun, Cheon-Su;Shin, Yong-Ho
    • Journal of the Korea Society for Simulation
    • /
    • v.25 no.2
    • /
    • pp.93-100
    • /
    • 2016
  • The purpose of this study is to investigate the impacts of individual difference toward technology and situational influences on use intention of Self-Service Technology. While the previous research related to SSTs focuses on individual tendency toward technology, little research has been done on the impact of situational influences on usage intention of SSTs. This study proposed Technology Readiness Index for measuring individual tendency toward technology and categorized situational influences into two dimensions: location convenience, employee presence. The empirical testing of the research was conducted on 20' users who have prior experience in using SSTs except for ATMs in bank. This study demonstrated that the people who are favorable emotions positively affect SSTs. Also this study confirmed that it is effective to build strategies to form favorable attitude and usage intention of knowledge of SSTs rather than method through service employees. Finally, SSTs were distributed for customers.

A Study on Comparison of Satellite-Tracked Drifter Temperature with Satellite-Derived Sea Surface Temperature of NOAA/NESDIS

  • Park, Kyung-Ae;Chung, Joug-Yul;Kim, Kuh;Choi, Byung-Ho
    • Korean Journal of Remote Sensing
    • /
    • v.10 no.2
    • /
    • pp.83-107
    • /
    • 1994
  • Sea surface temperatures (SSTs) estimated by using the operational SST derivation equations of NOAA/NESDIS were compared with satellite-tracked drifter temperatures. As a result of eliminating cloud-filled or contaminated pixels through several cloud tests, 69 matchup points between the drifter temperatures and the SSTs estimated with NOAA satellite 9, 10. 11 and 12 data from August, 1993 to July, 1994 were collected. Multi-channel sea surface temperature(MCSST) using a split window technique showed an approximately $1.0{\circ}C$ rms error as compared with the drifting buoy temperatures for 69 coincidences. Accuracies for satellete-derived sea surface temperatures were evaluated for only NOAA-11 AVHRR data which had relatively large matchups of 35points as compared with other satellites. For the comparison of the oberved temperatures with the calculated SSTs, linear MCSST and nonlinear cross product sea surface temperature(CPSST) algorithms by the split, the dual and the triple window technique were used respectively. As a result, the split window CPSSTs showed the smallest rms error of $0.72{\circ}C$. Defferences between the split window SSTs and the drifter temperatures appeared th have a linear tendency against the drifter temperatures and also against the differences between AVHRR channel 4 and 5 brighness temperatures. This indicates some possibilities that satelite-derived SSTs operationally calculated from the NOAA/NESDIS equation in the seas around Korea have been underestimated as compared with actural SSTs in case sea water temperature is relatively low or the atmosphere over the sea surface is very dry like in winter, while overstimated in case of high temperature or very moist atmospheric equations based on local sea measurements around Korea instead of global measurements should be derived.

Correlation Analysis between Monthly Precipitation in Korea and Global Sea Surface Temperature (우리나라의 월강수량과 범지구적 해수면온도의 상관성 분석)

  • Oh, Tae Suk;Moon, Young-Il
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.28 no.2B
    • /
    • pp.237-248
    • /
    • 2008
  • Precipitation variability in Korea is mainly influenced by climate circulation such as sea surface temperature, not a local convection. Therefore, this study investigates relationship between monthly precipitation of 61 station observed by Korea Meteorological Administration and global sea surface temperatures (SSTs). The main components of monthly precipitation in Korea are extracted by a method which consists of the principal analysis combined with the cluster analysis, to examine the correlation between monthly rainfalls and SSTs. The relationships between main components of monthly precipitation and SSTs exists in Pacific Ocean. At the result of Wavelet Transform analysis, The 2-4 year band have a strong wavelet power spectrum and the low frequency. the correlation coefficient between low frequency components of monthly rainfalls and SSTs calculated bigger then correlation coefficient between main components and SSTs. Hence, these results propose a prediction possibility of monthly precipitations using the varition of SSTs.

How Does the Negative Response to Digital Shadow Work Influence the Continuous Use Intention of Users?: The Moderating Effect of Gratification Delay Ability (디지털 그림자노동에 대한 부정적 반응은 지속사용의도에 어떻게 영향을 미치나?: 만족지연능력의 조절효과)

  • TingTing Liu;Woong-Kyu Lee;Joon Koh
    • Knowledge Management Research
    • /
    • v.24 no.3
    • /
    • pp.173-193
    • /
    • 2023
  • Digital transformation and the COVID-19 pandemic have facilitated the rapid development and dissemination of non-face-to-face technologies such as self-service technologies (SSTs). This research investigates how motivation factors affect consumers' negative responses to digital shadow work (DSW) in SSTs which decreases their continuous use intention of SSTs. Also, we examine whether the grafication delay ability moderates the relationship between consumers' negative responses to DSW and their continuous use intention of SSTs. By an analysis of usable 450 user respondents via SmartPLS 4.0, perceived benefits was found to significantly influence consumers' negative responses to DSW. Also, consumers' negative responses to DSW can significantly decrease their intention to continue using SSTs. Further, the effect of negative responses to DSW on continuous use intention of SSTs is stronger in case of consumers with low gratification delay ability than in case of consumers with high gratification delay ability. The study findings contribute to providing some strategies for companies operating SSTs by examining the effects of consumer's responses to DSW and gratification delay ability on the continuous usage intention of SSTs.

Characterization of High Temperature Strength of Si3N4 Composite Ceramics According to the Amount of SiO2 Nano Colloidal Added (SiO2 나노 콜로이달 첨가량에 따른 Si3N4의 고온강도 특성)

  • Nam, Ki-Woo;Lee, Kun-Chan
    • Transactions of the Korean Society of Mechanical Engineers A
    • /
    • v.33 no.11
    • /
    • pp.1233-1238
    • /
    • 2009
  • This study analyzed the characterization of high temperature strength of $Si_3N_4$ composite ceramics additive based on variations in the amount of nano colloidal $SiO_2$ added. Semi-elliptical cracks about 100 ${\mu}m$ length were obtained from a Vickers indenter using a load of 24.5 N. The results showed that the heat-treated smooth specimens with $SiO_2$ nano colloidal coating exhibited the highest bending strength at 0.0 wt% $SiO_2$ nano colloidal added, which is amounted to a 187 % increase over that of smooth specimen. Limiting temperature for bending strength of crack-healed zone for bending strength was about 1273 K. However, the bending strength of SSTS-3 and SSTS-4 was considerably increased while that of SSTS-1 and SSTS-2 was decreased at a temperature of 1,573K.

The Effect of Airport Self-Service Characteristics on Passengers' Technology Acceptance and Behavioral Intention

  • KIM, Jong-Hyeon;PARK, Jin-Woo
    • Journal of Distribution Science
    • /
    • v.17 no.5
    • /
    • pp.29-37
    • /
    • 2019
  • Purpose - This paper analyzes the effects of the SST characteristics at airports on behavioral intention through technology acceptance and customer satisfaction, and presents a strategic plan for introducing SSTs to airports providing differentiated services. Research design, data, and methodology - We examine the role of airport self-service characteristics and access the influence of the Technology Acceptance Model (TAM) on both customer satisfaction and behavioral intentions towards SSTs. To do this, a survey is conducted with passengers having used self-service technologies(SSTs) at Incheon International Airport. A total of 400 questionnaires are then analyzed using structural equation modeling. Results - According to the results, of the self-service characteristics, customer satisfaction and behavioral intention were affected by optimism through perceived ease of use, perceived usefulness, and perceived enjoyment and by innovativeness and insecurity through perceived ease of use. Conclusions - According to the results of the study, the purpose of using TBSS in the airport is to save time and convenience. Therefore, it is necessary to closely analyze the differences in technology acceptance by age and generation, increase user self-efficacy, increasing satisfaction through effective management of cognitive and emotional waiting time will have a positive impact on behavioral intentions.