• Title/Summary/Keyword: Perceived cost

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Analysis of Modeling Errors for BIM-based Facility Management Systems (BIM기반 시설물유지관리시스템을 위한 모델링 오류 분석)

  • An, Hyokyung;Lee, Seulki;Yu, Jungho;Son, Bosik;Jang, Hyounseung
    • Korean Journal of Construction Engineering and Management
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    • v.14 no.4
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    • pp.35-45
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    • 2013
  • Facility Management is the longest in the building of life cycle. Because it occupies more than 80% of cost, the phase of Facility Management has to be managed and has to be perceived as important as design and construction phase. The method to manage building more efficiently is the introduction of Facility Management System used by CAD and database. But information Requirement is now input by hand in the most Facility Management System. This study aims to analyze the example of applying BIM in the Korea or abroad and the errors of this were deducted by many phase. Lastly, the possible solution is suggested in order to be used in the Facility Management System. This study's benchmarking is COBIE which is developed by the COE(Corps of Engineers) and now popular in the world. The suggestion in this study is the method that I have already mentioned is helpful for a designer to do modeling when a designer uses BIM S/W(software). To be more specific, the method plays a side role in helping data input considering the phase of Facility Management.

Burden of COPD among Family Caregivers (만성폐쇄성폐질환자 가족의 보호부담에 관한 연구)

  • Kim, Jeong-Hwa;Kim, Eun-Kyung;Park, Sun-Hyung;Lee, Kyung-Ae;Hwang, Yong-Il;Kim, Eun-Ji;Jang, Seung-Hun;Park, Sung-Hoon;Lee, Chang-Youl;Lee, Myung-Goo;Lee, Ji-Yeon;Kim, Dong-Gyu;Jung, Ki-Suck
    • Tuberculosis and Respiratory Diseases
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    • v.69 no.6
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    • pp.434-441
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    • 2010
  • Background: Chronic obstructive pulmonary disease (COPD) is a major health problem resulting in significant burden for patients and families. However, family caregivers' burden has not been well recognized. The objectives of this study were to evaluate the level of caregivers' burden and to explore the related factors based on family, patient, and social support factors. Methods: A face-to-face interview with 86 family caregivers who had been taking care of COPD patients was conducted. The participants answered a self-administered questionnaire. The questionnaire included the level of family caregivers' burden, health status and the relationship within the family, functional limitation of patients perceived by family caregivers and the social support. Results: The level of caregivers' burden among participants was considerably high. Risk factors for caregivers' burden included low educational level of family caregivers, low family income, hours of caregiving, and functional limitation of the patients. Protective factors for caregivers' burden were good relationship within the family and support from other family members or friends. Conclusion: It is proved that family caregivers are facing significant burden in taking care of COPD patients. To reduce family caregivers' burden, it is necessary to address socioeconomic status of the family and to provide various community resources including financial support and nursing services.

A comparative study on the priorities between perceived importance and investment of the areas for Information Security Management System (정보보호관리체계(ISMS) 항목의 중요도 인식과 투자의 우선순위 비교 연구)

  • Lee, Choong-Cheang;Kim, Jin;Lee, Chung-Hun
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.24 no.5
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    • pp.919-929
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    • 2014
  • Recently, organizational efforts to adopt ISMS(Information Security Management System) have been increasingly mandated and demanded due to the rising threat and the heavier cost of security failure. However there is a serious gap between awareness and investment of information security in a company, hence it is very important for the company to control effectively a variety of information security threats within a tight budget. To phase the ISMS, this study suggests the priorities based on evaluating the Importance of 13 areas for the ISMS by the information security experts and then we attempt to see the difference between importance and investment through the assessment of the actual investment in each area. The research findings show that intrusion incident handling is most important and IT disaster recovery is the area that is invested the most. Then, information security areas with the considerable difference between priorities of importance and investment are cryptography control, information security policies, education and training on information security and personnel security. The study results are expected to be used in making a decision for the effective investment of information security when companies with a limited budget are considering to introduce ISMS or operating it.

USN's Efforts to Rebuild its Combat Power in an Era of Great Power Competition (강대국 간의 경쟁시대와 미 해군의 증강 노력)

  • Jung, Ho-Sub
    • Strategy21
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    • s.44
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    • pp.5-27
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    • 2018
  • The purpose of this paper is to look at USN's efforts to rebuild its combat power in the face of a reemergence of great powers competition, and to propose some recommendations for the ROKN. In addition to the plan to augment its fleet towards a 355-ships capacity, the USN is pursuing to improve exponentially combat lethality(quality) of its existing fleet by means of innovative science and technology. In other words, the USN is putting its utmost efforts to improve readiness of current forces, to modernize maintenance facilities such as naval shipyards, and simultaneously to invest in innovative weapons system R&D for the future. After all, the USN seems to pursue innovations in advanced military Science & Technology as the best way to ensure continued supremacy in the coming strategic competition between great powers. However, it is to be seen whether the USN can smoothly continue these efforts to rebuild combat strength vis-a-vis its new competition peers, namely China and Russian navy, due to the stringent fiscal constraints, originating, among others, from the 2011 Budget Control Act effective yet. Then, it seems to be China's unilateral and assertive behaviors to expand its maritime jurisdiction in the South China Sea that drives the USN's rebuild-up efforts of the future. Now, some changes began to be perceived in the basic framework of the hitherto regional maritime security, in the name of declining sea control of the USN as well as withering maritime order based on international law and norms. However, the ROK-US alliance system is the most excellent security mechanism upon which the ROK, as a trading power, depends for its survival and prosperity. In addition, as denuclearization of North Korea seems to take significant time and efforts to accomplish in the years to come, nuclear umbrella and extended deterrence by the US is still noting but indispensible for the security of the ROK. In this connection, the naval cooperation between ROKN and USN should be seen and strengthened as the most important deterrents to North Korean nuclear and missile threats, as well as to potential maritime provocation by neighboring countries. Based on these observations, this paper argues that the ROK Navy should try to expand its own deterrent capability by pursuing selective technological innovation in order to prevent this country's destiny from being dictated by other powers. In doing so, however, it may be too risky for the ROK to pursue the emerging, disruptive innovative technologies such as rail gun, hypersonic weapon... etc., due to enormous budget, time, and very thin chance of success. This paper recommends, therefore, to carefully select and extensively invest on the most cost-effective technological innovations, suitable in the operational environments of the ROK. In particular, this paper stresses the following six areas as most potential naval innovations for the ROK Navy: long range precision strike; air and missile defense at sea; ASW with various unmanned maritime system (UMS) such as USV, UUV based on advanced hydraulic acoustic sensor (Sonar) technology; network; digitalization for the use of AI and big data; and nuclear-powered attack submarines as a strategic deterrent.

Perception and Attitudes to Leftover Food at School Food Service -The Elementary School Students in Gwangju Area- (학교급식 잔반에 대한 인식 및 태도 - 광주지역 일부 초등학생을 대상으로 -)

  • Kim, Mi-Sook;Jeon, Eun-Raye;Hwang, Kum-Hee;Jung, Lan-Hee
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.1
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    • pp.137-147
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    • 2011
  • This study investigated the perception and attitude to leftover food at school food service by the questionnaire survey of the elementary school students in Gwangju area. The school food service satisfaction was neutral and school food service cost and quality was satisfactory. The dissatisfaction of school food service was shown as unkind staffs and a shortage for fruit and beverage. The kinds of leftover food were seasoned vegetables and kimchi. The reasons for leftover food were unfavorite food and the frequency was shown as once or twice a week. For the order of eating food, the subject first ate food they had tried. The highest kind of an unbalanced diet was beans and minor grains. To reduce food waste, many students perceived that tasty food, education by a class teacher in class that it could pollute environment and do us damage, recycling as livestock feed, 'No Plate Waste Day' organized by school would be a feasible method to reduce food waste. The nutrient intake of eaten food was significantly higher for all nutrients in the group receiving food waste education than the control group (p<0.001).

Effect of Constrain Condition of Soil Nail Head on Slope Stability (쏘일 네일 두부 구속조건이 사면 안정성에 미치는 영향)

  • Kim, Yongeung;Ahn, Kwangkuk
    • Journal of the Korean GEO-environmental Society
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    • v.15 no.2
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    • pp.37-43
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    • 2014
  • Natural disasters such as earthquakes and tsunamis occur suddenly, so that they cause massive loss of lives and property. Especially earthquakes represent a particularly severe threat because of the extensive damage accompanied by them. In Korea, an earthquake-resistant design has been rarely applied to a design or construction of slope. However, in resent years, the researches for earthquake-resistance have been performed because the importance on the earthquake-resistance is perceived and highlighted. Soil nail method, one of the slope stability methods, is excellent for its constructability and cost effectiveness, as compared with other stability methods. Also, this method has been widely used for reinforced construction for slope stability. The studies of soil nail method have been performed on the interaction behavior between nails and slopes as well as the varied load condition such as static load, dynamic load and so on. Nevertheless, there has been minimal research regarding the constraint condition of nail head. In this study, the numerical analysis was performed for identifying effect on slope stability for the constrain condition of the soil nail. The result shows that the resistance of constrained the nail head on reinforced slope is larger compared to the one of unconstrained nail head.

Deokhu: Differences of investment activity and flow level according to self-perception, emotional change before-after deokhu activity (덕후: 자기 지각에 따른 투자 활동과 몰입 수준 차이, 덕후 활동 전후의 정서 변화)

  • KIM, SU-SIE;Lee, Heung-Pyo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.1
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    • pp.75-84
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    • 2019
  • The purpose of this study was to investigate whether there is a difference between the deokhu activities and the flow level of the deokhu group. We also tested whether there are any real differences in emotion before and after the deokhu activities. The study included 227 adults and results were as follows. First, the deokhu group had a high cost of investing and a high rate of one-day investments, particularly for one-week activities and years of duration compare to the non-deokhu group. Second, the higher the degree to which they perceived themselves as deokhu and the level of deokhu activities were higher in flow. and the group of deokhu was more absorbed than the non-deokhu group. Third, there has been no change in positive and negative feelings before and after deokhu activities in the non-deokhu group. For the deokhu group, the positive emotions of happiness, joy, tranquility, pleasure increased and negative emotions such as anger, anxiety, sadness, shame, and guilt were significantly reduced after deokhu activities. The perception of deokhu and deokhu activities have positive functions that increase the level of flow, relieve negative feelings and enhance positive emotions.

Entrepreneurial Costs as Determinants of the Decision on Getting Back From Self-Employment to Salary-Employment: A Social Psychological Approach (창업비용이 창업 후 재취업 (의사)결정에 미치는 영향: 사회심리학적 접근)

  • Lee, Juil;Kim, Sang-Joon
    • Korean small business review
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    • v.40 no.4
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    • pp.75-94
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    • 2018
  • This study captures the possibility that entrepreneurs can become an employee in a traditional organization (a company). Acknowledging that the career change from self-employment to salary-employment is not a trivial decision, we investigate how this career path can be made. As an exploratory approach, we take a social psychological perspective; in particular, we posit that entrepreneurial costs can affect the "getting-back" career decision. Given that career changes can be considered as a boundedly-rational choice, we claim that when the entrepreneurs are perceived as being stigmatized, these transaction-related costs will further engage in the "getting-back" career decision. To test these ideas, we sample 254 respondents from the database of Korea Education & Employment Panel (KEEP) and estimate the hazard ratio that an entrepreneur, who used to be an employee, becomes an employee with respect to entrepreneurial costs. With the results, we discuss how career changes (especially getting back to salary-employment) can be made through social evaluations of the entrepreneurs.

Do good return policies work across cultures? Effect of lenient return policies on online shopper perceptions in Eastern culture

  • Yang, SuJin;Choi, Yun Jung
    • Asia Marketing Journal
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    • v.15 no.2
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    • pp.75-97
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    • 2013
  • While good return policies are suggested as one of the critical services for e-commerce, ambivalence between the burden of the cost and shoppers' satisfaction may prevent e-tailers from increasing their level of leniency. Based on the S-O-R model, this study has attempted to develop a grounded theory to explain how lenient return policies shape online shoppers' perceptions and responses, with a focus on cultural influences in the relationship. In order to check the cultural effects of the lenient return policy, thirty two female and eleven male undergraduate students in South Korean shoppers, who are accustomed to strict return policies, participated in the semi-structured interview. A series of open-ended questions were designed to explore consumers' reactions toward four different levels of the lenient return policy: from the strict type in South Korea to the lenient type in the U.S. Using qualitative research methods, this research has defined three types of dimensions of lenient return policy: return possible period, complexity of progress, and other restrictions. While previous researchers did not pay much attention, the last dimension, other restrictions, is shown to be the most significant in influencing online shoppers' perceptions, especially in South Korea. Also, the impacts on online shoppers' perceptions from the three types of sub-dimensions of return policy were somewhat different. Whereas a longer return possible period was considered more favorable, a medium level of complexity and restrictions were considered more desirable. In summary, this result showed that shoppers in Eastern cultures, i.e. South Korean online shoppers, seem favorable to a medium level of lenient return policies, while allowing for taking precautions against possible fraudulent behaviors and setting other restrictions. Therefore, most of retailers in South Korea recommended that e-tailers who adopt the most lenient return policies raise the bar to guard ethical shoppers from fraudulent users. Next, lenient return policies can enhance ease of use, usefulness, affect, and trust while relieving perceived risk, which is connected to intention to purchase, satisfaction, and loyalty. Interestingly, lenient return policies are more likely to change the behavioral responses of online shoppers, such as return and purchase, rather than change their attitudes or beliefs such as image, satisfaction, and loyalty. This tendency can be seen more clearly in the direct influences of return policy on responses. The reaction to lenient return policy is mostly the intention to return or to purchase. This suggests that return policy serves the e-tailers as a powerful tool in increasing online shoppers' purchase intention at the moment of purchase. Therefore, e-tailers who plan to expand their market to eastern countries, including South Korea, have to build a shield of restrictions around their lenient return policy, rather than immediately applying their original liberalized return policy. Also, e-tailers in South Korea need to review their strict and undifferentiated return policies to deal with the unsatisfied reactions of online shoppers toward their normal return policies. Although the present study was confined to the return policies currently being practiced by popular e-tailers, it would be worthwhile to develop effective return policies separately for each country, especially South Korea, keeping the culture of the relevant country in mind.

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The Effect of Perceived Customer Value on Customer Satisfaction with Airline Services Using the BERTopic Model (BERTopic 모델을 이용한 항공사 서비스에서 지각된 고객가치가 고객 만족도에 미치는 영향 분석)

  • Euiju Jeong;Byunghyun Lee;Qinglong Li;Jaekyeong Kim
    • Knowledge Management Research
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    • v.24 no.3
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    • pp.95-125
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    • 2023
  • As the aviation industry has rapidly been grown, there are more factors for customers to consider when choosing an airline. In response, airlines are trying to increase customer value by providing high-quality services and differentiated experiential value. While early customer value research centered on utilitarian value, which is the trade-off between cost and benefit in terms of utility for products and services, the importance of experiential value has recently been emphasized. However, experiential value needs to be studied in a specific context that fully represents customer preferences because what constitutes customer value changes depending on the product or service context. In addition, customer value has an important influence on customers' decision-making, so it is necessary for airlines to accurately understand what constitutes customer value. In this study, we collected customer reviews and ratings from Skytrax, a website specializing in airlines, and utilized the BERTopic technique to derive factors of customer value. The results revealed nine factors that constitute customer value in airlines, and six of them are related to customer satisfaction. This study proposes a new methodology that enables a granular understanding of customer value and provides airlines with specific directions for improving service quality.