• 국제초고층학회논문집
• /
• 제12권2호
• /
• pp.145-152
• /
• 2023

Typical floor systems in contemporary tall buildings consist of reinforced concrete or composite metal deck over framing members and account for a majority of the structural weight of the building. The use of high-density materials, such as reinforced concrete and steel, increases the weight of floor systems, reducing the system's overall efficiency. With the introduction of high-performance materials, mainly mass timber products, and fiber-reinforced composites, in the construction industry, designers and engineers have multiple options to choose from when selecting structural materials. This paper discusses the application of mass timber and carbon fiber composites as structural materials in floor systems of tall buildings. The research focused on a comparative analysis of the structural system efficiency for five different design options for tall building floor systems. Finite Element Analysis (FEA) method was adopted to develop a simulation framework, and parametric structural models were simulated to evaluate the structural performance under specific loading conditions. Simulation results revealed the advantages of lightweight structural materials to improve system efficiency and reduce material consumption. The impact of mechanical properties of materials, loading conditions, and issues related to fire engineering and construction were briefly discussed, and future research topics were identified in conclusion.

• 기술혁신연구
• /
• 제24권4호
• /
• pp.193-219
• /
• 2016

본 연구는 의료분야 사용자 혁신을 아이디어 도출-연구개발-상용화 및 창업의 세 단계로 분류하고, 각 단계별로 혁신의 성공에 미치는 핵심요인의 조합을 30개 국내 사례에 대한 퍼지집합 질적 비교분석을 통해 파악했다. 아이디어 단계에서는 사용자 인적 네트워크상에서 그 가치를 평가하고, 연구개발 단계로의 이행을 위한 자원을 제공해 주는 것이 중요했다. 연구개발 단계에서는 급진적 혁신은 기술역량, 자원 접근성, 정부지원이 모두 갖추어져 있거나 우수한 혁신 네트워크에 아이디어가 도입된 경우 발생했다. 상용화/창업의 경우 급진적 혁신은 연구개발과 같이 세 조건이 모두 갖춰진 경우 발생했으며, 점진적 혁신은 기술역량이 탁월한 개인이 소규모 정부지원 또는 주변 자원을 활용해 이루어졌다. 민간기업의 사용자 혁신 전략과, 정부 지원 정책의 효과, 효율성을 모두 제고할 수 있는 사용자 혁신의 틀을 제공했다는 점에 현실적 의미가 있다. 학술적으로는 사용자 혁신 단계별 핵심요인 조합을 규명하고, 퍼지집합 질적 비교분석방법을 적용한 첫 연구라는 의의가 있다.

• 환경영향평가
• /
• 제21권6호
• /
• pp.927-939
• /
• 2012

Cool roofs are currently being emerged as one of important mechanism to save energy in relation to the building. Although green roof has already gained nation-wide recognition as a typical method of energy saving in the roof, this approach did not provide a realistic evidence that is economically feasible in terms of installation cost. This research is primarily intended to compare installation cost between the two techniques. This research proposes a comparative evaluation framework in a more objective and quantitative way for an installation cost between the two techniques. Kyungpook National University (KNU) was selected as a survey objective and an exhaustive and realistic comparison of installation cost between the two techniques was conducted, based on Life Cycle Cost analysis (initial investment cost, maintenance cost, dismantling and waste disposal expense). It was possible to identify that installation cost of cool roofs is 4.7 times cheaper than that of green roof. Also present value based on probabilistic approach was identified as 0.25 (4.95) higher than the installation cost on the assumption of constant price and interest. It is expected that much more installation cost for the large scale green roof will be required since small-size green roof selected as a survey objective in this study could be operated under less initial installation and maintenance condition.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
• /
• 제25권1호
• /
• pp.51-60
• /
• 2019

Purpose: This study aims to analyze design guidelines for hospice facilities in the US, UK, and Canada focused on design considerations and space requirements, and utilizes them as baseline data for establishing standards for Korean hospice facilities. Methods: Comparative review was carried out to investigate hospice care models, design consideration, and room sizes and requirements for design guideline of hospice facilities in United States, UK and Canada identified on electronic database and review articles, and to examine major characteristics and tendencies of hospice facilities. Results: The hospice care models characteristics in design guidelines is generally largely divided into hospital-based hospice facility, Nursing home-based hospice facility, and daycare hospice. The design considerations in hospice facilities focused on medical efficiency, flexibility, barrier-free environment, person-centered care, and stability. There is also a need for single resident room, rooms for the patient's family, and isolation room for infection control. Implications: it is recommended to establish standards for the installation and operation of required and recommended rooms and considerations when establishing the standards of hospice facilities in Korea. This Study is limited to a simple comparative analysis of the framework of guideline.

• 한국생산제조학회지
• /
• 제26권2호
• /
• pp.172-184
• /
• 2017

Nanotechnology is a leading branch of technology and is expected to improve national industrial competitiveness. For maintaining a sustainable growth in nanotechnology, Korean government has set up specific plans from a long-term perspective. One of these plans is tracking and promoting certain potential technologies called Future 30 Nanotechnologies. This study aims to develop an analysis framework for comprehending the Future 30 Nanotechnologies. We applied this framework to the carbon nanomaterials field. Through co-authorship and keyword network analysis, we identified the research trends of three countries (i.e., Korea, US, and China.). This research framework could be utilized in the development of a nanotechnology policy.

• 한국정보시스템학회지:정보시스템연구
• /
• 제29권3호
• /
• pp.119-144
• /
• 2020

Purpose Real estate usually takes charge of the highest proportion of physical properties which individual, organizations, and government hold and instability of real estate market affects the economic condition seriously for each economic subject. Consequently, practices for predicting the real estate market have attention for various reasons, such as financial investment, administrative convenience, and wealth management. Additionally, development of machine learning algorithms and computing hardware enhances the expectation for more precise and useful prediction models in real estate market. Design/methodology/approach In response to the demand, this paper aims to provide a framework for forecasting the real estate market with machine learning algorithms. The framework consists of demonstrating the prediction efficiency of each machine learning algorithm, interpreting the interior feature effects of prediction model with a state-of-art algorithm, LIME(Local Interpretable Model-agnostic Explanation), and comparing the results in different cities. Findings This research could not only enhance the academic base for information system and real estate fields, but also resolve information asymmetry on real estate market among economic subjects. This research revealed that macroeconomic indicators, real estate-related indicators, and Google Trends search indexes can predict real-estate prices quite well.

• 한국보건간호학회지
• /
• 제25권2호
• /
• pp.244-254
• /
• 2011

Purpose: The study was designed to develop an instrument to measure risk factor-related deviant behavior (RFRDB) for the elderly. Methods: The preliminary instrument including 52 items to measure the risk factor-related deviant behavior for the elderly was developed through conceptual framework based literature review. The items were reviewed by experts to reveal the Content Validity Index (CVI). Then, construct validity and reliability were tested using factor analysis, comparative groups, and Cronbach's alpha with data from 233 elderly. Results: Among 52 items, 27 questions in the RFRDB instrument were selected from content validity and 21 questions in the final RFRDB were developed from testing validity and reliability. Results of empirical analysis(retest) of RFRDB were supported by 70% congruity with conceptual framework through literature review. The RFRDB has been completed by validity testing by known-group technique. The final developed RFRDB of the elderly has 21 questions each with a 4-point Likert Scale. Conclusion: The RFRDB may be utilized as a measurement to assess the risk of elderly deviant behavior.

• 비교교육연구
• /
• 제27권1호
• /
• pp.223-245
• /
• 2017

이 연구는 호주와 스코틀랜드의 NCS기반 직무능력평가자의 양성제도를 비교 분석하고 시사점을 파악하는 데 목적이 있다. 이를 위하여 직무능력평가의 특징과 평가자의 역할을 살펴보고, 호주와 스코틀랜드의 직무능력평가자 자격과정 및 질관리시스템을 분석하였다. 또한 각국의 특징을 비교하고 시사점을 제시하였다. 호주와 스코틀랜드는 공통적으로 직무능력평가자 자격과정을 국가직무능력표준에 기반한 교육훈련과정을 통해 개발 시행하고 있다. 해당 교육훈련과정의 질 관리를 위해 해당 교육훈련과정을 운영할 수 있는 교육훈련기관 및 과정에 대한 사전평가인증을 실시한다. 또한 자격과정을 운영하는 교육훈련기관에서는 자격증을 소지한 전문평가자를 확보하고, 평가자의 계속경력개발 활동을 지원하고 있다. 우리나라는 국가직무능력표준에 기반한 교육훈련과정을 도입 운영하고 있으며, 직무능력평가자 자격제도의 도입을 검토하고 있다. 이러한 상황에서 호주와 스코틀랜드의 평가자 자격제도는 향후 우리나라에 직무능력평가자 자격제도의 설계 및 운영은 물론 국가직무능력표준 기반 교육훈련과정의 질 관리 및 성과 제고에 기여할 수 있는 유용한 정보 및 시사점을 제공한다.

• 품질경영학회지
• /
• 제51권4호
• /
• pp.701-713
• /
• 2023

Purpose: The primary purpose of this study is to integrate text mining and Quality Function Deployment (QFD) to automatically extract valuable information from customer reviews, thereby establishing a QFD frame- work to confirm genuine customer needs for New Product Development (NPD). Methods: Our approach combines text mining and QFD through topic modeling and sentiment analysis on a large data set of 56,873 customer reviews from Zappos.com, spanning five running shoe brands. This process objectively identifies customer requirements, establishes priorities, and assesses competitive strengths. Results: Through the analysis of customer reviews, the study successfully extracts customer requirements and translates customer experience insights and emotions into quantifiable indicators of competitiveness. Conclusion: The findings obtained from this research offer essential design guidance for new product develop- ment endeavors. Importantly, the significance of these results extends beyond the running shoe industry, presenting broad and promising applications across diverse sectors.

• 한국콘텐츠학회논문지
• /
• 제10권7호
• /
• pp.149-158
• /
• 2010

본 연구에서는 고맥락 문화의 대표국인 일본과 저맥락 문화의 대표국인 미국에서 제작되고 있는 소녀 대상 만화의 표현 발달과 성립에 대한 비교분석을 하였다. 동서양 문화권에 따른 비교연구는 소녀만화 표현 매커니즘에 대한 정서적 차이를 구명할 수 있으며, 표현영역 확장에도 그 근거를 제시할 수 있다고 사료된다. 특히, 소녀만화의 표현 매커니즘의 가장 기본이 되는 '칸의 구조'를 살펴보는 것은 각 문화권에서의 소녀만화를 보다 자생력 있는 문화콘텐츠로 육성하기 위한 이론적 토대가 될 것으로 사료된다.