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신재원(Shin Jaewon),윤여원(Yoon Yeowon),윤길림(Yoon Gillim) 한국지반환경공학회 2011 한국지반환경공학회논문집 Vol.12 No.7
철강의 생산 중에 부산물로 발생하는 전기로 제강 환원슬래그는 토질안정제로서의 적용성, 결합재 및 팽창재로서 활용법에 대한 약간의 연구 보고만 있을 뿐, 전기로 제강 환원슬래그 재활용에 관한 연구 및 시공실적은 거의 없는 실정이다. 본 연구는 전기로 제강 환원슬래그를 토목 분야에 재활용할 수 있는 방법을 모색하는데 이러한 목적을 달성하기 위하여 SEM, XRF 시험을 수행하였다. 이를 바탕으로 풍화토 및 점토와 환원슬래그를 일정한 혼합율로 혼합한 후, 환원슬래그 혼합토의 물리?공학적 특성을 고찰하기 위한 다양한 지반공학적 실내시험을 수행하였다. 다짐시험에서는 환원슬래그의 혼합율이 증가할수록 최대건조단위중량이 감소하고 최적함수비는 증가하였다. 이것은 환원슬래그를 성토재 및 재하재로 사용할 경우, 환원슬래그가 혼합된 풍화토는 지내력의 증가 등의 관점에서는 성토재 및 재하재로 적합하지 않음을 의미한다. 환원슬래그와 풍화토를 혼합한 환원슬래그 혼합토의 전단강도 특성은 일반적인 모래의 내부마찰각보다 약간 크거나 비슷하였고, 투수특성 또한 실트 또는 모래와 비슷한 결과를 확인하였다. 환원슬래그와 점토를 혼합한 환원슬래그 혼합토의 일축압축강도는 순수점토의 일축압축강도보다 크게 나타났고, 재령일수가 증가함에 따라 증가하는 경향을 보였다. 따라서 연약점토 지반의 표층개량에 적용할 경우 개량효과가 있을 것으로 판단된다. Only a few studies have been conducted using reduced slag as recycled material. The reduced slag in electric furnace is produced as a by-product in making a steel and a few applications of the reduced slag as expensive additives and bonding materials or as the stabilized soils was reported. The purpose of this study is to present the feasibility of the reduced slag as recycled material, especially, in a field of civil engineering. In order to achieve the purpose experiments such as SEM and XRF analysis was conducted for the reduced slag in electric furnace. Based on the results various geotechnical experiments were conducted to know engineering properties of slag-soil mixtures. Weathered soils and clay are mixed with reduced slag for various ratios. As the ratio of reduced slag to weathered soil increases, the maximum dry unit weight of the mixture decreased with increasing optimum moisture content. The results indicates that there is no effect on a reduced slag by compaction efforts. The shear strengths of the weathered soil-slag mixtures are slightly higher or similar to those of weathered soils. The permeability of the weathered soil-slag mixtures is similar to that of silty or sandy soils. Therefore, it is possible to use the mixtures as embankment or backfill materials in the fields. The unconfined strength of the mixtures of reduced slag and clay is higher than that of clay and it tends to increase with the curing time. Therefore it can be used to improve the soft ground.
내부마케팅이 여행사종사원의 조직신뢰와 고객지향성에 미치는 영향
신재원 ( Jaewon Shin ) 관광경영학회 2019 관광경영연구 Vol.88 No.-
The Purpose of this research was to find the relationship among Internal marketing, Organizational trust, Customer orientation. The Self-Communication method was adopted to collect the data during September 2018. Unworkable date was eliminated, and final 270 usable responses were obtained for an empirical analysis. Frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis and regression analysis were measured by using SPSS 18.0, respectively. It was found as follows: First, regarding the relationship between Internal marketing and Organizational trust, those of Relation factors, Empowerment, Internal Communication positively affect Organizational trust. Second, regarding the relationship between Internal marketing and Customer orientation, Those of Relation factors, Empowerment, Internal communication and Compensation system positively affect Customer orientation. Third, regarding the relationship between Organizational trust and Customer orientation, Organizational trust positively affect Customer orientation. This study examined the necessity of Internal Marketing management based on relationship between Travel agent and It’s Employees understanding needs of travel agent for Human resource management. This research suggests theoretical and operational implications on the aspects of marketing management for human resource in travel industry.
신재원(Jaewon Shin),김세희(Sehee Kim),김능균(Neunggyun Kim),조정훈(Junghun Jo),서지현(Jihyun Seo),이삼열(Samyol Lee) 한국방사선학회 2014 한국방사선학회 학술대회 논문집 Vol.8 No.1
Recently, the interest in the healthy is increased, the number of times for the diagnosis is increased, the radiation exposure is also increasing interest. As a result, the basic data for dental panoramic photography and its investigation and obtain a measure of the dose is needed. ALOKA PDM-117 dosimeter using a two-dimensional plane through experiments to evaluate the distribution of the dose, the patient's radiation dose to propose methods for the reduction. 최근 치아건강에 대한 관심이 커지며 진단을 위한 치아 방사선 검사의 횟수가 증가하고, 방사선 피폭에 대한 관심도 증가하고 있다. 이에 따라 치아 방사선 검사에서 그 횟수가 점점 증가하고 있는 치과 파노라마 촬영장치에 대한 기본 데이터 확보와 이에 대한 조사 및 선량의 측정이 필요하다. 본 연구에서는 ALOKA PDM-117 dosimeter를 이용하여 바텍제품(VATEC Pax-400)의 치과파노라마에서 발생되는 X-ray의 선량분포를 실험을 통해 2차원적인 평면 선량분포도를 측정하고 그 분포에 대한 평가를 환자의 방사선피폭 차원에서 확인하고, 환자의 피폭선량 감소를 위한 방법을 제시하고자 한다.
신재원(Jaewon Shin),김세희(Sehee Kim),김능균(Neunggyun Kim),조정훈(Junghun Jo),서지현(Jihyun Seo),이삼열(Samyol Lee) 한국방사선학회 2014 한국방사선학회 학술대회 논문집 Vol.2014 No.춘계
최근 치아건강에 대한 관심이 커지며 진단을 위한 치아 방사선 검사의 횟수가 증가하고, 방사선 피폭에 대한 관심도 증 가하고 있다. 이에 따라 치아 방사선 검사에서 그 횟수가 점점 증가하고 있는 치과 파노라마 촬영장치에 대한 기본 데이터 확보와 이에 대한 조사 및 선량의 측정이 필요하다. 본 연구에서는 ALOKA PDM-117 dosimeter를 이용하여 바텍제품(VATEC Pax-400)의 치과파노라마에서 발생되는 X-ray의 선량분포를 실험을 통해 2차원적인 평면 선량분포도를 측정하고 그 분포에 대한 평가를 환자의 방사선피폭 차원에서 확인하고, 환자의 피폭선량 감소를 위한 방법을 제시하고자 한다. Recently, the interest in the healthy is increased, the number of times for the diagnosis is increased, the radiation exposure is also increasing interest. As a result, the basic data for dental panoramic photography and its investigation and obtain a measure of the dose is needed. ALOKA PDM-117 dosimeter using a two-dimensional plane through experiments to evaluate the distribution of the dose, the patient's radiation dose to propose methods for the reduction.
지역 소셜미디어 마케팅 활동이 신뢰와 정보공유의도에 미치는 영향
신재원 ( Jaewon Shin ) 관광경영학회 2021 관광경영연구 Vol.103 No.-
The purpose of this study is to investigate the relationship among local social media marketing, trust and information sharing intention. To perform this study, Total 300 questionnaire were distributed to users who has experienced local social media dated from December 1th to December 21th. Unworkable data were excluded, 262 usable response were obtained for an empirical analysis. Frequency analysis, exploratory factor analysis, reliability analysis, and regression analysis were measured by using SPSS 25.0 program accordingly. For the study structure, local social media marketing was divided with timeliness, usefulness, richness, accuracy. Trust and information sharing intention were single factor. The results have shown as follows: Hypothesis 1, among local social media marketing, all factors have a positive effect on trust. Hypothesis 2, among local social marketing, those of richness, usefulness and accuracy have a positive effect on information sharing intention. Hypothesis 3, trust has a positive effect on information sharing intention. This study result has found that managing local social media marketing is a source of competitive marketing tool in local level. This study suggests operational and theoretical implications on the aspects of social marketing management.