• Safety and Health at Work
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• 제4권1호
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• pp.12-26
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• 2013

In concert with the development of new materials in the last decade, the need for toxicological studies of these materials has been increasing. These new materials include a group of rare earths (RE). The use of RE nanotechnology is being considered in some green applications, to increase their efficiency by using nano-sized RE compounds, and therefore hazard evaluation and risk assessment are highly recommended. This review was conducted through an extensive contemplation of the literatures in toxicology with in vitro and in vivo studies. Major aspects reviewed were the toxicological evaluations of these elements and metallic compounds at the molecular and cellular level, animal and human epidemiological studies and environmental and occupational health impacts on workers. We also discuss the future prospect of industries with appliances using RE together with the significance of preventive efforts for workers' health. To establish a safe and healthy working environment for RE industries, the use of biomarkers is increasing to provide sustainable measure, due to demand for information about the health risks from unfavorable exposures. Given the recent toxicological results on the exposure of cells, animals and workers to RE compounds, it is important to review the toxicological studies to improve the current understanding of the RE compounds in the field of occupational health. This will help to establish a sustainable, safe and healthy working environment for RE industries.

• KIEAE Journal
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• 제13권6호
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• pp.67-75
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• 2013

The present duration of 5 years in the Korea Green Building Certification(G-SEED) should be re-set taking into account with the needs for renewal of re-certification criteria. This study methods is to analyze the differences between the characteristics of the certification system of green building of domestic and foreign and to seek the improvement to derive the problem of detailed evaluation items of the examination. The purpose of this study is to identify some problems of re-certification criteria in the G-SEED System and to propose the renewal of certification system. Analysis of the rating criteria with a few re-certified examples of office buildings have been made. Some measures to improve the re-certification have been suggested as follows; (1) it is strongly suggested to establish re-certification rating systems that is not yet made, (2) the new criteria of re-certification bring into focus on whether buildings maintain the environmental performances of the initial status certified, and (3) thus the effective duration of re-certification needs to re-set flexibly in a way to confirm to the initial environmental performances and maintenance conditions certified.

• 대한치과기공학회지
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• 제28권1호
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• pp.67-81
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• 2006

This research has been attempt to examine closely factors that high cost and value to overall satisfaction state for dental implant prosthesis, re-utilization intention, inducement intention of the general hospital dental service user and provide basis data necessary to establish competitive general hospital dentistry management strategy. Collected data using own recording way questionnaire from April 17, 2004 to May 15, 2004 choosing 142 people that agree on this research and question of 361 people that dental implant prosthetic treatment finished from March 1, 1999 to March 1, 2004 for this. Major analyzation consequences are as follows : First, general satisfaction, re-utilization intention, inducement intention for implant prosthesis that highly correlation variables are kindness, explanation, medical treatment level and appreciation of the aesthetic. Second, correlation is high relatively between re-utilization intention, inducement intention in the 3 variables such as general satisfaction re-utilization intention, inducement intention. Third, the result of multiple regression analysis showed that most significant effective factors are satisfaction with explanation of dental implant prosthesis between the 3 dependant variables such as general satisfaction, re-utilization intention, inducement intention. In looking into these consequence, how to improve that raise satisfaction about dental implant prosthetic treatment and to establish patient focused care service system for dental implant prosthesis, it is consider that explain enough about implant prosthesis and raise quality of medical examination and treatment level, including satisfied with fabrication of good esthetic dental implant prosthesis.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제16권1호
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• pp.72-80
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• 2016

Re-auction happens when a bid winner defaults on the payment without making second in-line purchase declaration even after determining sales permission. This is a process of selling under the court's authority. Re-auctioning contract price of real estate is largely influenced by the real estate business, real estate value, and the number of bidders. This paper is designed to establish a statistical model that deals with the number of bidders participating especially in apartment re-auctioning. For these, diverse factors are taken into consideration, including ratio of minimum sales value from the point of selling to re-auctioning, number of bidders at the time of selling, investment value of the real estate, and so forth. As an attempt to consider ambiguous and vague factors, this paper presents a comparatively vague concept of real estate and bidders as trapezoid fuzzy number. Two different methods based on the least squares estimation are applied to fuzzy regression model in this paper. The first method is the estimating method applying substitution after obtaining the estimators of regression coefficients, and the other method is to estimate directly from the estimating procedure without substitution. These methods are provided in application for re-auction data, and appropriate performance measure is also provided to compare the accuracies.

• 한국식생활문화학회지
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• 제33권3호
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• pp.250-260
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• 2018

The Korean buffet restaurant, which was developed by combining the Korean food and a buffet, allows a large menu to be enjoyed at a reasonable price and has become popular with men and women, young and old, and become a new type of eating out. This study examined the effects of the waiting time management and menu quality on the customer satisfaction and re-visit intention in a Korean buffet restaurant to help quality improvement and development of Korean buffet restaurants. The customer satisfaction and re-visit intention only had a significant effect on the staff attitude toward waiting time. Hygiene, sensory factor, and variety of menu quality were significantly related to customer satisfaction and re-visit intention, respectively. In addition, satisfaction with food and service had a significant effect on the re-visit intention and customer satisfaction. Therefore, it is important to establish a virtuous cycle structure that will improve the re-visit intention by satisfying customers through waiting time management and menu quality for the development of Korean buffet restaurants.

• Composites Research
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• 제16권3호
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• pp.32-40
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• 2003

최근 철근의 부식과 관련된 철관콘크리트 바닥판의 내구성에 대한 문제점이 증가되면서 부식에 대한 저항성이 크며, 기존 구조용 재료에 비해 여러 가지 물리적, 역학적 장점을 가진 섬유보강플래스틱을 사용한 보강재의 사용성이 증가되고 있다. 본 연구는 GFRP Re-Bar 다발로 보강된 1방향 슬래브의 휨거동에 관한 실험적 연구로서, 국내에서 개발된 GFRP Re-bar의 인장시험을 수행하였으며, GFRP Re-Bar의 보강량을 증가시켜가며 단위 폭을 갖는 1방향 슬래브 실험체를 제작하고 3등분점 재하실험을 수행하였다. 각 실험체에 대한 이론적인 해석은 철근콘크리트 휨부재의 해석 및 설계방법을 수정, 보완하여 개발된 ACI Committee 440에 따라 수행하였으며, 실험결과와 이론적 해석결과를 비교, 분석하였다. 연구결과 ACI Committee 440에 의해 추정한 각 실험체의 하중­처짐 거동은 실험결과와 비교적 잘 일치함을 알 수 있었으며, FRP Re-Bar로 보강된 콘크리트 바닥판의 설계규준을 확립하기 위해서는 강도에 대한 한계상태뿐만 아니라 처짐 등 사용성에 대한 한계상태가 결정되어야 할 것이라 생각된다.

• International Journal of Human Ecology
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• 제10권2호
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• pp.55-69
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• 2009

The Purpose of the current study is to investigate the differences in cosmetics attribute evaluation, purchase motivation, and brand re-purchase intention with respect to shopping orientations of Korean female university students. Questionnaires were distributed to 250 female students at Kyungpook National University and 220 completed questionnaires were analyzed. The results were as follows. First, shopping orientations and cosmetics attribute evaluation each generated four factor solutions, whereas cosmetics purchase motivations produced three factors. Second, three consumer groups - Efficiency Shopper Group, Indifference Shopper Group Ambivalence Shopper Group - with different shopping orientations were identified. Third, the study found significant differences in consumers' attribute evaluation such as function and price among the groups. The study also revealed a significant difference in contingent purchase motivations and brand re-purchase intention among the groups. From these results, we could identify that cosmetics re-purchase intention was significantly different among three different groups with different shopping orientations. Furthermore, consumer classification according to shopping orientations in cosmetics product purchase can be used by cosmetics marketers and managers to establish product plan and marketing strategy development. Additionally, the current study has originality and value that the relationship between shopping orientation and re-purchase intention has not been studied very much in the cosmetics product domain.

• 벤처창업연구
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• 제10권6호
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• pp.235-252
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• 2015

정부는 역동적 혁신경제로 경제 대도약을 위해 선순환 벤처 창업 생태계를 구축하고 있다. 이와 같은 생태계 구축은 실패를 두려워 하지 않는 기업가정신을 지닌 우수인력의 도전적 벤처창업과 실패를 관용하고 이를 경험으로 재창업할 수 있는 사회적 환경이 마련되어야 가능하다. 정부의 벤처 창업 붐 조성 노력으로 벤처기업 및 신설법인 수 등이 매년 증가 하고 있으나, 이들 기업이 실패할 경우 재창업 등으로 재기 할 수 있는 사회적 환경 조성과 지원제도 마련의 노력은 최근에야 시작되었다. 실패기업에 대한 정확한 실태조사, 지원제도가 부족한 상황에서 본 연구는 실패한 기업에 대한 그간의 선행연구를 기반으로 국내 실패기업인의 재도전, 재창업과 관련된 현황을 파악 후 해외 선진국 사례와 국제비교를 통해 적용 가능한 정책적 시사점을 도출하여 국내 실패기업의 재창업을 원활히 할 수 있는 정책적 방향을 제시하고자 한다. 미국과 같이 실패를 성공의 한 단계로 인식하는 창업문화가 형성되기 전까지는 EU의 SBA법과 같은 재도전 정책을 지속적으로 추진할 수 있는 법적근거 마련과 일본의 민간 중심의 중소기업재생지원협의회 구성 운영을 참고할 필요가 있다. 또한 실패기업인의 삶의 질 보장도 함께 고려하는 것이 필요하다. 도출된 시사점을 바탕으로 내린 결론에 대한 추가 연구와 정부 정책이 보완된다면 국내 재창업 활성화를 위한 깊은 통찰을 제공할 수 있을 것이다.

• 신재생에너지
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• 제20권2호
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• pp.44-54
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• 2024

The objective of this study was to contribute to domestic offshore wind farms by reasonably predicting the expected completion time and installed power generation capacity of offshore wind projects in South Korea. Offshore wind power is drastically regarded as a core tool for clean energy transition and industrial decarbonization in the fight against the climate crisis globally. Especially in South Korea offshore wind power is the main tool in partaking in RE100 and K-RE100, and the Korean government aims to install 14.9 GW of offshore wind farms by 2030. However, this seems to have been significantly delayed due to the complex process of obtaining permits for offshore wind power in Korea. Thus, a reasonable prediction of power generation and a timeline for the final construction are imperative. To establish the delay time for permit licenses, classified location factors were included into site analysis. These factors comprised reviews of transmission and military operability, environmental impact assessment, maritime traffic safety examination, wind resource assessment and an analysis of current offshore wind projects. According to the analysis, the majority of offshore wind projects currently being developed in Korea are predicted to be delayed by 3-5 years as they are among the criteria included in key discussion points for obtaining permits. The cumulative installed power capacity and annual power generation after construction are expected to be 37 GW and 97 TWh respectively.

• KIEAE Journal
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• 제4권2호
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• pp.3-10
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• 2004

The purpose of this study is to suggest the guidelines for suitability analysis of the environmentally friendly rural village housing site. And then this study is based on the rural village model for the rural village (re)development. The suitability analysis of environmentally friendly rural village housing site is conducted on Suryon dong, Wonju, Gangwon-do. The method of analysis is to secure validaty and reliability of the exact analysis of a geographic data for a decision-making statistical analysis. The results of this study is useful to prove it conclusively site-suitability to establish a principles and to change direction for the environmentally friendly rural village and rural housing (re)development.