• 대한건축학회논문집:구조계
• /
• 제36권3호
• /
• pp.147-157
• /
• 2020

With the increasing obligation to reduce greenhouse gas emissions to the building sector, the government has been gradually expanding its obligation to zero-energy buildings since 2020. Since the ZEB certification took effect in 2017, 48 preliminary and main certifications have been completed as of March 2019, and most of them are public buildings or even certified, but have earned Grade 5 of ZEB. This means that compared with the number of annual building permits registered in Korea, the figure is insignificant, and that it receives little if not mandatory. Therefore, this study investigated empirical cases of ZEB additional construction cost and conducted cost benefit analysis according to changes in ZEB additional construction cost based on a preliminary feasibility analysis project recently conducted by the KDI. In addition, considering the public buildings, the social costs were considered, and the cost-benefit analysis method was the same as the KDI's preliminary feasibility analysis method. The analysis shows that if the ratio of ZEB additional construction cost is more than 5 percent, it is analyzed that there is no economic feasibility, and considering that the ratio of additional construction cost in the cases of ZEB in Korea is 17 percent to 38 percent, it will not be easy to obtain ZEB certification in terms of cost. Finally, to narrow these differences in cost and economic aspects, the overseas low energy and ZEB incentive examples proposed measures such as the concept of subsidy payment in Illinois and the compensation of social costs to private ZEB.

• 설비공학논문집
• /
• 제24권1호
• /
• pp.85-89
• /
• 2012

This study has been conducted to compare two cargo handling systems on MR tanker and Panamax tanker. Submerged hydraulic cargo pumps with hydraulic power packs and frequency converter controlled electric deepwell pumps will be investigated and compared on all aspects of initial cost, installation, operation and maintenance. The result of investigation shows Electric Systems have less manufacturing costs, higher environmental friendliness and reliable operation compare to Hydraulic Systems. Furthermore, the present experimental data will provide important database for Electric Systems onboard new ships and practical and empirical guidelines are constructed for further determine the design of the Electric Systems.

• 한국의류산업학회지
• /
• 제9권3호
• /
• pp.303-311
• /
• 2007

The apparel market is extremely competitive and thus apparel manufacturers should try to maximize consumer satisfaction with cost-efficient but consumer-oriented strategies. Personalized strategies considering each consumer's characteristics have to be developed. The purpose of this study is to investigate the effects of consumers' characteristics on personalization strategies of apparel brands. Investigating personalization based on consumers' values and demographic characteristics will allow apparel manufacturers to attract target consumers. A survey method was used for the empirical study. Questionnaires from 420 respondents were analyzed using factor analysis, cluster, t-test, and ANOVA. The results indicated a significant influence of consumer values on customer service-related aspects of personalization. Female consumers demanded product- and information-oriented factors of personalization. Age, residential area, and clothing expense also had significant influence on the need for personalization of apparel shopping.

• 산경연구논집
• /
• 제9권4호
• /
• pp.53-62
• /
• 2018

Purpose - In the development of new products, suppliers involvement and developing products jointly can be said to be strategic activities that utilize the lack of knowledge from external organizations. In this new product development, supplier involvement has been proven to have a positive impact on new product development performance for a long time by previous research. However, sufficient academic research has not been conducted on the influence of supplier involvement in various product strategies or sales strategies that buyers make in order to secure a competitive advantage in the market. This study argues that product strategy and sales strategy used by buyers in the development of new products will control the effect of supplier involvement on new product development performance in order to compensate the lack of these academic aspects. Research design, data, and methodology - Specifically, we selected the modularization strategy of the product as the product strategy, which is considered as an important strategy in the new product development through the preceding research, and the mass customer satisfaction strategy was chosen as the sales strategy. In order to achieve these research objectives, regression analysis was conducted using data from manufacturing productivity panel collected jointly by the Ministry of Industry, Trade and Industry and the Korea Productivity Center. Results - As a result, supplier involvement and new product development performances (development cost efficiency, customer satisfaction) were positively related. The product modularity strategy proved to have an interactive effect on the relationship between supplier involvement and new product development performances (development cost efficiency, customer satisfaction). However, it has not been confirmed that there is a statistically significant interaction effect between supplier involvement and new product development performances. Conclusions - Supplier involvement has positive relationships with NPD performance. In addition, product modularity strategies have interaction effects with supplier involvement and affect new product development performance (development cost efficiency and customer satisfaction). The results of this study are of academic significance in the case of lack of empirical studies on the effect of supplier participation on the effect of buyer 's strategy when a supplier participates and develops new products jointly.

• 한국IT서비스학회지
• /
• 제15권4호
• /
• pp.125-151
• /
• 2016

In recent years, O2O (Online to Offline) services get a lot of attention to improve the trust in online shopping and minimize the inconvenience and the cost burden in offline shopping as the number of consumers, who do not show concern about the purchase platform like online or offline, increases. Even though the services have been getting the spotlight as a strong business platform for next generation commerce, there have been only a few studies on the O2O services. The purpose of this research is to investigate the factors which affect the consumer's intention to use location-based O2O services. The study is based on VAM (Value-based Adoption Model) which is able to analyze those factors from the aspects of benefit and sacrifice. We used the partial least squares (PLS) method for empirical analysis, and the result shows that contextual offers, instant connectivity, webrooming and economic efficiency, which fall under the benefit, affect perceived value positively while annoyance and face consciousness, which fall under the sacrifice, do not affect perceived value significantly. In addition, contextual offers and instant connectivity affect trust positively. Location accuracy, which falls under the benefit of location-based O2O service, do not significantly affect perceived value and trust while security risk affects trust and use intention negatively. It appears that trust affects perceived value and use intention positively.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2005년도 지반공학 공동 학술발표회
• /
• pp.601-612
• /
• 2005

In mountainous area, Two parallel tunnels have been usually recognized as a road tunnel which has benefits in aspects of cost and stability. However, Design and construction of 2-Arch road tunnel are growing recently due to environmental destruction, compensation of land and difficulty of route separation. As studies are mainly undergoing on only guaranteeing stability and developing a waterproofing-drainage system to avoid water leakage through comprehension for characteristics of 2-arch tunnel behaviors, there is a tendency to evaluate quantity of support by empirical method with a tunnel which has a complicated cross-section and lack of construction ability. In this study, therefore, we made a plan of tunnel cross-section which had shown good construction ability and developed the waterproofing-drainage system which is able to solve the water leakage problem fundamentally by analyzing precedented 2-arch tunnels and investigating their sites in and out of nation. We also determined fixed quantity of support by a large-scale model test and numerical analysis. We want to contribute to 2-arch tunnel design hereafter introducing design procedure and method applied here.

• 통상정보연구
• /
• 제10권4호
• /
• pp.301-319
• /
• 2008

The development of Korea in the Northeast through trade is not a matter of choice as far as national strategy is concerned, but is an important national policy that is a matter of life or death which will determine the future fate of Korea. This thesis will attempt to arrive at a general, tangible plan for the development of Korea in the Northeast centered around trade by examining the change in naval environment at home and abroad, the given economic situation in the Northeast, and the present state of essential port development in Korea-China-Japan. Its objective will be to provide strategies for the development of Busan port confrontation. For the last ten years, China has been growing at a rapid rate. Since a lot of the volume of naval trade is being transferred from Korea to China, we must do everything we can to improve the service and reduce cost. In addition, Japan also is losing international position. Japan's government and the private industry are trying to make Super Core Ports a prominent feature of their port system. If the Busan port system is to remain competitive, these aspects of the Japanese port system must be kept in mind to prevent trade from going to other ports with more competitive systems.

• 인터넷정보학회논문지
• /
• 제13권1호
• /
• pp.45-55
• /
• 2012

임상시험 전체 소요시간 및 비용의 절감, 임상 데이터 질의 향상을 위해 임상시험 전자자료의 관리가 점차 중요해지고 있다. 또한 임상시험 전자자료 관리는 전자 임상시험의 안정성 및 질을 위해 규정 가이드라인을 준수하는 것이 결정적으로 필요하다. 본 연구는 전자적 시스템을 활용한 임상시험에 있어 데이터 관리의 성과를 평가하기 위한 프레임웍을 개발하고자 한다. 연구의 목적을 위해 임상시험 프로세스에 근거하여 기반능력, 연구설계, 연구진행 및 연구완료 등 네 개의 주요 메트릭을 구성함으로써 데이터 관리의 수준을 측정할 수 있는 성과척도를 도출한다. 이때 각 성과척도의 도출 기준은 임상시험 자체가 지향하는 데이터의 질 향상, 전자자료 관리 프로세스의 비용과 효율성 및 규정 준수 수준 등 네 가지의 관리적 관심을 기준으로 하며, 각 성과척도 별로 전자자료 관리 프로세스 상 실질적으로 측정 가능한 측정지표를 제시한다. 평가 프레임웍은 네 가지의 주요 측정 메트릭에 근거하여, 세 개의 데이터 영역(연구기관, 모니터링, 데이터관리센터) 별로 구성된다. 본 평가 프레임웍의 개발은 전문가 의견 수렴을 통한 델파이 방법론으로 접근한 탐색적 연구로서 향후 실증적 후속 연구를 과제로 남기고 있다.

• 한국벤처창업학회:학술대회논문집
• /
• 한국벤처창업학회 2021년도 춘계학술대회
• /
• pp.33-42
• /
• 2021

Based on the findings of Lee et al.(2020) and Lee & Oh(2021), this paper aims to fill the gap in our knowledge regarding the relationship between strategic choices and corporate growth by utilizing a novel dataset of 'Unicorn' and 'Hyper-growing' companies. Two previous studies provide coherent findings that the relationship between firms' strategies and their performance should be explored under a more comprehensive framework with consideration of both internal and external factors. Therefore, in this study, we apply a single conceptual framework to two different datasets, which considers the strategy factors as independent variables, and the industry(market) and the firm age as moderating variables. For our dependent variables, valuations for unicorn companies and revenue CAGR for hyper-growing companies are used after categorizing them into three uniform groups. The strategy variables include 'Generic (Cost-leadership, Differentiation, focus) strategies', 'Growth(Organic, M&A) strategies', 'Leading(Pioneer, Fast-follower) strategies', 'Target market(B2B, B2C, B2G, C2C) strategies', 'Global(Global, Local) strategies', 'Digital(Online, Offline) strategies.' For industry(market) factors, it consists of historical growth rate for industries and economic, demographic, and regulatory aspects of states and countries. To overcome the differences in their units, they are also uniformly categorized into multiple groups. Before we conduct a regression analysis, we analyze the industry distribution of the 'Unicorn' and the 'Hyper-growing' companies with descriptive statistics at the integrated and individual levels. Next, we employ hierarchical regression models on Study A('Unicorn' companies in 2019) and Study B('Hyper-growing' companies in 2019) under the same comprehensive framework. We then analyze the relationship between the 'strategy' and the 'performance' factors with two different approaches: 1) an integrated regression model with both the sample of Study A and B and 2) respective regression models on Study A and B. This empirical study aims to provide a complete understanding and a reference to which strategy factors should be considered to promote firms' scale-up and growth.

• 한국전자거래학회지
• /
• 제22권4호
• /
• pp.141-158
• /
• 2017

최근 고객들은 다양한 IT 채널을 이용해 의견을 자유롭게 표현할 수 있게 되었다. 이에 따라 기업은 고객들의 의견 중 특히 부정적인 의견을 효율적으로 관리하기 위해 큰 노력을 기울이고 있다. 기존의 연구들은 주로 고객의 불만 제기 횟수나 상담시간 등의 양적 데이터를 이용하여 고객 이탈 방지에 관해 연구하였으나, 고객이 실제로 언급한 불만 내용을 분석한 연구는 한정적이다. 따라서 본 연구는 고객 불만 데이터를 중심으로 고객 이탈에 영향을 주는 요인들을 알아보기 위해 이탈-항의 이론(Exit-voice theory)을 바탕으로 보안업체의 고객센터로 접수된 46,235명 고객의 268,364건의 상담내용을 양적인 측면뿐이 아니라 질적인 측면에서도 실증 분석하였다. 감성 분석 방법을 활용하여 상담내용의 감성값을 도출하고, 도출된 감성 사전을 이용해 고객의 만족 여부를 명시적으로 알기 어려운 상담내용의 고객 만족도를 예측하였다. 마지막으로 이 감성 값이 고객의 이탈에 미치는 영향을 로지스틱 회귀분석을 통해 분석하였다. 분석 결과 고객이 만족 여부를 명확히 응답하지 않은 경우에도 감성 분석을 이용해 계산된 각 감성값이 고객 이탈에 서로 다른 영향을 준다는 것을 알 수 있었다. 향후 본 연구에서 제시한 감성 분석을 통한 만족도 예측방법으로 고객의 숨은 의도를 효과적으로 파악하여 고객 불만 관리에 실무적으로 활용될 수 있을 것으로 기대한다.