• Title/Summary/Keyword: Domestic-type

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The Effect of Online Travel Agency's Recommendation Information on Purchase Decision Making and Reuse Intention (온라인 여행사의 추천정보가 구매의사결정과 재사용의도에 미치는 영향)

  • Chung, Nam-Ho;Um, Tae-Hyee
    • The Journal of Information Systems
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    • v.26 no.3
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    • pp.149-169
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    • 2017
  • Purpose The purpose of this study is to investigate how OTA recommendation influences users' purchase decision making and reuse intention based on the users' destination type. And we compare the results of domestic destination and overseas destination. Design/methodology/approach This research model was designed with the recommendation elements of OTA. And this study conducted an empirical analysis using self-administered questionnaires. The target of the analysis is an individual who has purchased hotel rooms through the OTA for the past one year. A total of 374 usable data were collected (177 domestic respondents and 197 overseas respondents) and analyzed using partial least squares analysis using Smart-PLS 3.0. Findings Two OTA recommendation characteristics - recommendation accuracy and recommendation objectivity were significant in overall model. And easy of decision making was significantly affect to OTA reuse intention. Also, only recommendation accuracy variable was revealed to significant moderating variable between domestic model and overseas model.

A Study on Present Condition and Spatial Organization of Domestic Marina Club to Design Leisure Floating Architecture (레저용 플로팅건축물 설계를 위한 국내 마리나클럽 현황 및 공간구성에 관한 연구)

  • Pak, Sung-Sine
    • Journal of Navigation and Port Research
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    • v.36 no.3
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    • pp.253-259
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    • 2012
  • Marina and marina clubs are the essential structures to meet increasing marin tourism and marin leisure sports demand. According to the domestic situation, marina and marina clubs are divided into 6 types such as small sports type, small complex type, midium sports type, midium complex type, large sports type, large complex type. As a result of analysis of domestic three marina clubs, averagely marina facilities take 21% and commercial facilities take 79% of total space. In the short term, marina club should be designed focusing on complex program. Marina club will be for long-term transformed into marin leisure sports program. Additionally, it is certain that floating marina club is an architecture to have water-friendly space and to maximize marin tourism and marin leisure sports.

Evaluation of Withdrawal Resistance of Screw-Type Fasteners Depending on Lead-Hole Size, Grain Direction, Screw Size, Screw Type and Species

  • LEE, Hyung Woo;JANG, Sang Sik;KANG, Chun-Won
    • Journal of the Korean Wood Science and Technology
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    • v.49 no.2
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    • pp.181-190
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    • 2021
  • Screw-type fasteners are widely used to make connections between wood members or between wood and steel connectors because they can tolerate the applied loads by withdrawal or shearing. In this study, we evaluated the withdrawal resistances of the screw-type fasteners and analyzed the effects of the lead-hole size, relative grain direction (tangential, radial, and cross-sections) of the wood member, screw diameter, screw type, and species. Two wood species, including domestic larch and imported spruce, and three screw-type fasteners, including domestic lag screws (diameters of 9.46, 7.79, and 6.27 mm), domestic tapping screw (diameter, 6.3 mm), and imported Sherpa screw (diameter, 8.0 mm) were used. To assess the effect of lead-hole size, the lead holes with diameters corresponding to 68.7%, 70.8%, and 74.0% of the shank diameter of the lag screw were predrilled. The lead hole corresponding to 74% of the shank diameter was selected for this study because the smaller lead holes required higher rotational force for installation, which may cause damage in the screw neck, although there was no significant difference in the withdrawal resistance depending on the lead-hole sizes applied in this study. The lag screws installed on the tangential and radial surfaces showed similar withdrawal resistances to each other, which were greater than those installed on the cross-sectional surface. As the lag screw diameter increased from 6.27 mm to 9.46 mm, the withdrawal resistance also increased proportionally. The withdrawal resistance of the tapping screw having a diameter of 6.3 mm was almost 1.6 times higher than that of the lag screw having a similar diameter of 6.27 mm, while that of Sherpa screw having a diameter of 8.0 mm was around 1.4 times higher than that of the lag screw having a similar diameter of 7.79 mm.

Numerical Analysis of Flow Distribution inside a Fuel Assembly with Split-type Mixing Vanes for the Development of Regulatory Guideline on the Applicability of CFD Software (전산유체역학 소프트웨어 적용성에 관한 규제 지침 개발을 위한 분할 형태 혼합날개가 장착된 연료집합체 내부유동 분포 수치해석)

  • Lee, Gong Hee;Cheong, Ae Ju
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.29 no.10
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    • pp.538-550
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    • 2017
  • In a PWR (Pressurized Water Reactor), the appropriate heat removal from the surface of fuel rod bundle is important for ensuring thermal margins and safety. Although many CFD (Computational Fluid Dynamics) software have been used to predict complex flows inside fuel assemblies with mixing vanes, there is no domestic regulatory guideline for the comprehensive evaluation of CFD software. Therefore, from the nuclear regulatory perspective, it is necessary to perform the systematic assessment and prepare the domestic regulatory guideline for checking whether valid CFD software is used for nuclear safety problems. In this study, to provide systematic evaluation and guidance on the applicability of CFD software to the domestic nuclear safety area, the results of the sensitivity analysis for the effect of the discretization scheme accuracy for the convection terms and turbulence models, which are main factors that contribute to the uncertainty in the calculation of the nuclear safety problems, on the prediction performance for the turbulent flow distribution inside the fuel assembly with split-type mixing vanes were explained.

Emission test of a domestic fabricated cathode with higher current density

  • Ju, Yeong-Do;Gong, Hyeong-Seop;Kim, Seung-Hwan;Tanwar, Anil;Seok, Yeong-Eun;Lee, Byeong-Jun;Hong, Yong-Jun;Sin, Jin-U;So, Jun-Ho
    • Proceedings of the Korean Vacuum Society Conference
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    • 2016.02a
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    • pp.205.2-205.2
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    • 2016
  • The emission test a domestic fabricated cathode is conducted using an easy-replaceable-emitter-type test bench. A simple cylindrical button type cathode is dropped vertically into a cathode cup holder. The cathode is heated by a tungsten wire heater located around the cup holder. The cathode temperature is measured by an optical pyrometer. A high voltage pulse power supply gives the anode-cathode gap voltage up to 20 kV with the pulse width of 15 us. The emitted current from the cathode is captured at a faraday cup and is measured using current transformer and oscilloscope. The test bench is installed in the vacuum chamber with easy access door and, therefore, the cathode can be easily replaceable. We confirmed the emission current density of $15A/cm^2$ and $80A/cm^2$ with a domestic fabricated B-type cathode and a Scandate cathode, respectively. The detailed test result for the cathode will be presented.

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The effects of children's exposure to domestic violence on juvenile delinquency: A meta-analytic review (가정폭력 노출경험이 아동·청소년 비행에 미치는 영향에 대한 메타분석)

  • Shin, Sun-In
    • Korean Journal of Family Social Work
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    • no.23
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    • pp.153-182
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    • 2008
  • This study performed a meta-analysis on 45 research studies conducted in Korea on the relationship between domestic violence experience and juvenile delinquency. The meta-analysis calculated 125 effect sizes. The study then analyzed the effect of exposure to domestic violence on juvenile delinquency and evaluated the relationship according to research variables. The probabilities of juvenile delinquency by children who witnessed domestic violence, experienced violence directly, or experienced child abuse were 14%, 17.8% and 17.2% higher than that of children otherwise, respectively. However, the difference in experience types or child abuse types on mean effect sizes was not statistically significant. Cross effect between the type of domestic violence and the type of juvenile delinquency did not significantly impact the mean effect size of juvenile delinquency. The effect of domestic violence experience on delinquency was highest for junior high students, followed by elementary students and high school students, Difference in the effect size among groups was statistically significant. The effect size with respect to publication year was shown to have a minor static correlation, but the publication type was not meaningful. The study confirmed the effect of domestic violence on juvenile delinquency and emphasized that the responsibility of social environment in juvenile delinquency increase has been overlooked.

An Analysis of Operating Experience Reports Published in the Domestic Nuclear Power Plants for Resent 5 Years (최근 5년간 국내원전 운전경험보고서 분석)

  • Lee, Sang-Hoon;Kim, Je-Hun;Hur, Nam-Young
    • Transactions of the Korean Society of Pressure Vessels and Piping
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    • v.9 no.1
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    • pp.35-39
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    • 2013
  • The Operating Experience Report(OER) has written about the event and accident happened at a Nuclear Power Plant(NPP). The purpose of publishing the OER is to prevent the similar event or accident repeatedly by spreading the experience of a single plant to other plants personnel. Before initiating the analysis mentioned in this paper, 2,298 review reports for the same number of OER published from 2007 to June 2012 have been written to achieve the correct and objective statistics. The analysis introduced in this paper is performed with the various factors such as year, plant type, equipment, type of work, root-cause. The root-cause analysis is showed that the equipment problem is the major factor in domestic NPPs, but on the other hand human-error is the main part of the foreign NPPs. Moreover, while the number of the man-made event is decreasing, the equipment-made event is rapidly increasing in domestic NPPs.

Trend Research of the Human Body-Oriented Obesity Studies on Korean Medicine (인체를 대상으로 한 한의학적 비만 연구의 최신 국내 동향분석)

  • Jeong, Jang-Won;Cho, Sung-Woo
    • Journal of Korean Medicine Rehabilitation
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    • v.26 no.1
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    • pp.49-61
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    • 2016
  • Objectives To analyze the latest trend through the domestic studies of obesity and support further studies and clinical trials. Methods The theses were searched through KIOM OASIS (http://oasis.kiom.re.kr), The Journal of Society of Korean Medicine for Obesity Research, The Journal of Korean Medicine Rehabilitation. Then, domestic studies were gathered and classified by year, journal and type. Results 92 theses were included. The theses were constantly published every year. According to the analyzing by journals, the most published journal was The Journal of Society of Korean Medicine for Obesity Research. Through the analysis of type, 19 clinical studies and 11 case reports were found. The result of 43 theses analyzing survey and examination numerical value, the study of relationship between obesity and body index is the most published. Among 19 literary studies, 11 studies were searched domestic thesis, 2 studies were searched foreign thesis, 5 studies were searched domestic and foreign thesis simultaneously. Conclusions We need to effort to supplement the statistical error and the topic needs to be diverse. The sustainable research of The human body-oriented obesity studies is required.

Forecasting the consumption of dairy products in Korea using growth models

  • Jaesung, Cho;Jae Bong, Chang
    • Korean Journal of Agricultural Science
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    • v.48 no.4
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    • pp.987-1001
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    • 2021
  • One of the most critical issues in the dairy industry, alongside the low birth rate and the aging population, is the decrease in demand for milk. In this study, the consumption trends of 12 major dairy products distributed in Korea were predicted using a logistic model, the Gompertz model, and the Bass diffusion model, which are representative S-shaped growth models. The 12 dairy products are fermented milk (liquid type, cream type), butter, milk powder (modified, whole, skim), liquid milk (market, flavored), condensed milk, cheese (natural, processed), and cream. As a result of the analysis, the growth potential of butter, condensed milk, natural cheese, processed cheese, and cream consumption among the 12 dairy products is relatively high, whereas the growth of the remaining dairy product consumption is expected to stagnate or decrease. However, butter and cream are by-products of the skim milk powder manufacturing process. Therefore, even if the consumption of butter and cream grows, it is difficult to increase the demand of domestic milk unless the production of skim milk powder produced from domestic milk is also increased. Therefore, in order to support the domestic dairy industry, policy support should be focused on increasing domestic milk usage for the production of condensed milk, natural cheese, and processed cheese.

Compliance procedure for type certification of civil aircraft under KAS 23 (KAS 23급 민간항공기 형식증명을 위한 적합성 입증절차)

  • Kim, Jong Yoon;Lee, Wonjoong;Kim, Kwang Hae
    • Aerospace Engineering and Technology
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    • v.11 no.2
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    • pp.216-224
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    • 2012
  • This study described about the procedure and method to type certification of KAS 23 civil aircraft that is developed in domestic. It is important to obtain type certification within defined period based on the proposed process and method to prove compliance through certification basis according to certification plan. This process referred to FAA Order 8110.4 C, "Type Certification" and domestic regulation and showed example of compliance check list(CCL) defining means of compliance(MOC). Also, proposed method to prove compliance according to means of compliance and classified item of test & evaluation.