제주도 한림 재암천굴과 도로 교차구간의 CaveBIM 구축

안준상,김우람,백용,김진환,이종현 대한지질공학회 2022 지질공학 Vol.32 No.4

지하공간을 구성하고 있는 지중구조물, 지반, 암반 등 다양한 구성 요소 중에 지질공학적 측면을 포함한 모든 정보에 대한 모델 구축은 현실적으로 어려운 과정이며, 현재 진행형인 분야이다. 본 연구에서는 지질공학적인 정보모델 구축 과정이 비교적 쉬운 상용 소프트웨어를 활용하여 제주도 일부 지역 대상의 3차원 지질정보모델, 동굴형상정보모델, 도로 주변 현황 정보모델까지 한 번에 디지털화하는 과정이 포함되어 있다. 제주도에 존재하는 수많은 자연동굴 중에 도로와 교차하는 위치 중 제주도 한림 재암천굴을 대상으로CaveBIM 기반의 디지털 트윈 구축에 관한 연구를 수행 중이다. 본 연구에서는 3D 레이저 스캐너를 사용한 동굴 형상 정보모델링, 지질 정보및 지구물리탐사 자료를 활용한 3D 지질 모델링, 드론을 활용한 재암천굴 상부 도로 주변 현황 정보모델링 등의 개별 데이터 구축과 통합을 통해서 디지털화하는 과정을 포함하고 있다. 본 연구에서는 한림-제주 지역에 대한 전역모델(GSM) 및 재암천굴에 대한 국부모델(LSM)을 구축하였다. 또한 재암천굴에 대한 LSM 구축 시 교차검증을 수행하여 결과를 비교 및 분석하였다.

Effect of short-term fattening period and castration method on productivity, serum testosterone, and economic efficacy in Hanwoo cattle

안준상,Eung Gi Kwon,이현정,Ui-Hyung Kim,원정일,장선식,Byung-Ki Park 한국축산학회 2023 한국축산학회지 Vol.65 No.1

The purpose of this study was to evaluate the effects of castration method and short-term fattening periods on Hanwoo cattle. Thirty-two Hanwoo calves (average body weight: 148.4 ± 19.8 kg) were used. The calves were randomly assigned in a 2 × 2 factor according to two castration methods (castration or hemi-castration) and two short-term finishing periods (24 months or 26 months). The final body weight increased significantly as the fattening period increased (p < 0.05), and the average daily weight gain was higher in the hemi-castration groups than in the castration groups (p < 0.05). After surgical castration, testosterone concentration was higher in the hemi-castration group than in the castration group during the entire experimental period (p < 0.05). The rib eye area was wider in the hemi-castration group than in the castration group (p < 0.01).An interaction effect was observed between the castration method and short-term fattening period (p < 0.05). Marbling and auction price scores differed between castration methods and were higher in the castration group than in the hemi-castration group (p < 0.01). Gross receipts and net income increased in the castration group compared to the hemi-castration group (p < 0.01) and showed a tendency to increase with the short-term fattening period, but there was no significant difference. Thus, castration to remove both testicles is essential for economic profit through producing high-quality Korean beef meat, and short-term fattening for 26 months, rather than 24 months, can benefit more by increasing carcass weight and meat quality.

반추동물용 섬유질배합사료(TMR) 제조시설의 사료안전관리 인식 및 사료 중 위해인자의 오염도 조사

안준상,이종인,박병기,김민지,고용균,최염순,김상만,신종서 강원대학교 동물생명과학연구소(구 강원대학교 동물자원공동연구소) 2017 동물자원연구 Vol.28 No.1

This research was conducted to investigate awareness of feed safety management for total mixed ration (TMR) manufacturer and pollution level of harmful factor in feed. The questionnaire was distributed to 80 TMR manufacturing companies for 10 months and 50 questionnaires were collected. The questionnaire was consisted of 17 questions and the data were analyzed by descriptive statistic analysis, cross relation analysis and reliability. The main perception was imposing the feed safety management system should be followed after building institutional condition for the feed safety management. The most required condition was providing and sharing information on feed safety to establish feed safety management system. According to the research, the most weak point during managing feed safety and harmful factors was the mold toxin. The most hazard factors during feed manufacturing steps were foreign substances such as metal, fragment and soil. Upon investigation on pollution level of feed's hazard factor, cadmium, arsenic and selenium were exceeded standard of permission but ochratoxin, aflatoxin, melamine and Nonprotein nitrogen were not exceeded. Pesticide residual, fumonisin and salmonella were not detected. As the result of the analyses, to construct the feed safety management system of TMR manufacturing company, it is necessary to politically institutionalize the providing and haring information of feed safety. Moreover, reinforcing feed management to get rid of foreign substances and to prevent mold toxin among feed is advised. Lastly, establishing system of eliminating foreign substances at raw materials supplier should be mandatory.

The Role of Athlete Signing as a Tool for Market Expansion:A Study on European Football Teams Signing Korean Footballers

안준상,권기성 국민체육진흥공단 한국스포츠정책과학원 2021 International Journal of Applied Sports Sciences Vol.33 No.1

Although teams undertake various efforts (e.g., signing athletes who originate from the target market, holding international tours, participating in friendly tournaments during off-season) to expand their market internationally, teams signing target market’s national team level athletes is one of the most approachable and effective methods. However, to the best of the authors’ knowledge, no extant studies have empirically examined the effect of such a method. Therefore, the purpose of the current study was to examine the role of signing a national sports icon as a tool for market expansion for professional sports teams. This study conducted an experimental study by providing stimulus material and conducting a survey. The collected data was analyzed using the paired t-test and one-way ANOVA. Looking at the results, there was a significant difference in team loyalty when participants were exposed to the news that the team signed their national team player. In addition, the moderating effect of football involvement was evident as differences between the low involvement group and the high involvement group were partially statistically significant. Research findings contribute to understanding the effect of signing the target market’s athletes as a team’s global market expansion effort and provide important cues for future research.

Stadium Financing through City Redevelopment: A Case Study of Incheon United F.C. and Seungui Arena Park

안준상,강준호 한국스포츠산업경영학회 2014 한국스포츠산업경영학회지 Vol.19 No.1

Stadiums play a vital role in enhancing fan experience in professional sports. However, financing has always been a major obstacle as the cost of new stadiums are soaring. Moreover, many scholars and local governments nowadays question whether public subsidies for stadium construction constitute an efficient use of scarce public resource. This paper investigated a possible method of stadium financing through city redevelopment plan. The findings suggest viewing new stadium construction as a part of city redevelopment project is an approach that professional sports teams should consider. This method offers new insights to stadium construction as it satisfies the important stakeholders while minimizing financial burden on the local government and the teams.

지반 및 라이닝 열화 계측 정보를 반영한 해저 터널의 안정성 평가

안준상,김병찬,문현구,송기일,An, Joon-Sang,Kim, Byung-Chan,Moon, Hyun-Koo,Song, Ki-Il 한국터널지하공간학회 2016 한국터널지하공간학회논문집 Vol.18 No.5

Efficiency for estimation of subsea tunnel safety can be increased through reflecting back analysis algorithm to displacement measurements besides other measurement information such as stress, water pressure and ground stiffness degradation. In this study, the finite difference code FLAC3D built-in FISH language is used. In addition, the stability of the tunnel lining will be evaluated from the development of displacement-based algorithm and its expanded algorithm with conformity of several parameters such as stress measurements, water pressure measurements, tunnel lining degradation measurements and ground stiffness degradation measurements. By using additional measurement information to assess the stability of subsea tunnel, it was confirmed that the error rate is reduced to the tunnel back analysis. 해저 터널의 안정성 평가는 계측 변위 이외에도 응력, 수압 그리고 지반강성(열화) 등 다른 계측 정보를 사용해서 역해석 알고리즘에 반영하면, 그 효율성이 증대될 수 있다. 본 연구에서는 FLAC3D 프로그램에 내장된 FISH 언어를 사용해서, 기 구축된 변위-응력 기반의 차분진화 알고리즘을 수정 및 확장하였다. 확장된 차분진화 알고리즘에는 변위, 응력 정보 외에도 수압 및 지반 및 라이닝 열화 정보도 입력 인자로 사용되었다. 해저 터널 안정성 평가에 추가적인 계측 정보를 활용하면, 터널 역해석에 대한 오차율이 감소함을 확인할 수 있었다.

소규모 지하공동 3차원 형상 특성을 반영한 수치해석에 관한 연구

안준상,강경남,송기일,김우석,김병찬,An, Joon-Sang,Kang, Kyung-Nam,Son, Ki-Il,Kim, Woo-Seok,Kim, Byung-Chan 한국터널지하공간학회 2018 한국터널지하공간학회논문집 Vol.20 No.5

한국에서 시행중인 특별법에 의한 지하안전영향 평가 수행 시, 필수적으로 지하공동의 발생 유무를 조사하여야 한다. 지하공동 발견 시에는 수치해석을 통해서 지하안전성을 평가하도록 규정하였다. 선행 연구를 통해서 소규모 지하공동의 2차원 형상변화를 통한 안전율 기반의 안정성 평가 가능성을 제시하였다. 본 연구에서는 3차원 형상을 고려하여 소규모 지하공동의 영향을 연속체 해석 프로그램을 사용해서 검토하였고, 선행 연구에서 제시한 2차원 해석결과와 비교하였다. 지하공동의 3차원 형상이 구(sphere)형에 가깝게 발견되면, 공동의 크기, 위치 등에 관계없이 전단강도감소기법으로 안전율을 산정하여 평가하는 방법에 무리가 없을 것으로 판단된다. 지표면으로부터의 깊이 2 m 이상, 장축과 단축의 비(a/b)가 2.0 이상인 장대형 지하공동이 연직방향으로 서있는 형상이라면, 전단강도감소기법을 사용한 안정성 평가에 안전율 이외에 파괴양상 파악에도 주의가 필요할 것으로 판단된다. 본 연구의 결과는 지하안전영향평가에 관한 기초 자료가 될 수 있을 것으로 판단된다. When conducting the underground safety impact assessment under the special law in Korea, it is essential to investigate the occurrence of underground cavities. When underground cavities were discovered, the underground safety was assessed through numerical analysis. The previous study has suggested the stability evaluation based on the factor of safety by changing the 2D shape of the small underground cavity. In this study, the effects of small underground cavities considering 3D shapes were examined using a continuum analysis program and compared with the 2D results presented in previous study. If the 3-Dimensional shape of the underground cavity is found close to the sphere type, it would be reasonable to evaluate the factor of safety by the shear strength reduction method regardless of the size and position of the cavity. If a high-aspect ratio underground cavity with a depth of 2 m or more from the ground surface and an aspect ratio (a/b) of 2.0 or more is in the vertical direction, not only the factor of safety but the failure mode shape should be cautions in the stability evaluation using the shear strength reduction method. The results of this study are expected to be basic data on underground safety impact assessment.

Team Branding Enhancement: The Role of Player-Team Brand Personality Alignment in Team Evaluation and Brand Equity

안준상,강준호 국민체육진흥공단 한국스포츠정책과학원 2022 International Journal of Applied Sports Sciences Vol.34 No.1

Although the primary purpose of signing players is to provide fans with the best on-field performance, players’ role in team branding is another important factor that needs to be considered. Furthermore, as teams are dedicating tremendous time and effort into scouting and with large talent pools available worldwide, teams can easily find players with similar on-field qualities but possess dissimilar brand personalities. Thus, the purpose of the current study is to investigate the role of player signing in team branding. Particularly, this study examined the effect of player-team brand personality alignment on team-related fan responses. The empirical evaluation was undertaken with data collected from an experimental study. The authors empirically demonstrated that player-team brand personality alignment positively affected overall team evaluation and customer-based team brand equity, with more pronounced result for unfamiliar teams. Our findings not only establish the vital role of players in teams’ branding strategies but also uncover when aligned brand personality is more influential in reinforcing brand meaning and shaping affective brand evaluations and customer-based brand equity. The results of the current study fill gaps in the literature and extend the body of knowledge in branding studies in general and sports team branding studies in particular.

드론 사진측량을 활용한 재암천굴 상부 도로 균열 관리 방안에 관한 연구

안준상,홍성창,김우림,이종현 한국측량학회 2022 한국측량학회지 Vol.40 No.6

Natural lava caves are widely distributed in the underground space of Jeju Island. As of 2019, there are 209 naturalcaves in Jeju Island, and the intersections of roads and natural caves are estimated to be about 600 to 1,000. Amongthe numerous natural caves that exist in Jeju Island, a study was conducted on how to manage cracks by accumulatingdrone photography information on the Hallim Jaeamcheon-gul in Jeju Island, which intersects with roads. In this study,an intensive management area of about 30 m was selected and analyzed in three ways. The first is a visual analysisthrough the swipe function after superimposing two data at different times, the second is to extract and compare thecracks of the road for each round using machine learning techniques, and the third is to manually analyze the cracks inthe road area. were digitized and cross-comparison analysis was performed. As a result of observing the change patternof cracks over a period of one year (21.9~22.8), which is relatively short for observing road crack changes, significantcrack propagation was not observed in this study area. Assuming that cracks do not spread rapidly due to the nature ofroad cracks, it is judged that it is appropriate to follow-up about twice a year for a long period of time after the first droneshot to prepare basic data for caves and road surfaces. In the future, it is judged that it is necessary to study the crackgeneration and collapse model of the road surface by analyzing the correlation between various information such as thesize and depth of natural caves and the road for the intersection area that exists in Jeju Island in the future. 2019년 기준 제주도 내 천연동굴이 209개가 분포하고 있고, 또한 도로와 천연동굴이 교차되는 지점은 600∼1,000개소 정도로 파악된다. 제주도에 존재하는 수많은 천연동굴 중에 도로와 교차하는 위치 중 제주도 한림 재암천굴을 대상으로 드론 사진촬영 정보를 누적시켜 균열 관리 방안에 연구를 수행하였다. 본 연구에서는 30m 정도의 집중관리구역을 선정하여 3가지 방법으로 분석을 수행하였다. 첫 번째는 시기가 다른 2개의 데이터를 중첩 후 Swipe 기능을 통한 육안 분석, 두 번째는 머신러닝 기법을 사용하여 회차별 도로의 균열을 추출하고 상호 비교 분석, 세 번째는 도로 영역에수작업으로 균열 영역을 디지타이징하고 상호 비교 분석을 수행하였다. 도로 균열 변화를 관찰하기에 비교적 짧은 1년(21.9~22.8)이라는 시간 동안 균열의 변화 양상을 관찰한 결과 본 연구지역에서는 유의미한 균열 증가는 관찰되지 않았다. 도로 균열의 특성상 급격하게 균열이 확산되지는 않는다는 점을 가정할 때, 동굴과 도로면의 기초자료 마련을 위하여 최초 드론 촬영된 이후 장기간에 걸쳐 연 2회 가량의 추적 조사가 적당할 것으로 판단된다. 또한 향후 제주도 내 존재하는 교차지역에 대해서 천연동굴의 크기, 깊이 등 다양한 정보와 도로와의 상관관계를 분석하여 도로면의 균열 발생과 붕괴 모델에 대한 연구도 필요할 것으로 판단된다.

미생물을 이용한 폐수처리

안준상 한국미생물학회 1990 微生物과 産業 Vol.16 No.3

일반적으로 산업폐수및 생활하수의 생물학적 처리에 관계하는 미생물의 종류는 약1,000-2,000종에 이르는 것으로 추정된다. 이와 같은 미생물의 범위는 매우 넓어서 세균, 균류는 물론이고, 조류, 원생동물, 후생동물까지 포함한다. 19세기 이전에 미생물을 이용한 폐하수 처리는 생활하수와 같이 쉽게 분해하는 물질로만 구성되어 있기 때문에 간단한 처리 공정으로도 충분히 운영되었으나, 산업혁명 이후 새로운 화학물질이 합성되어 폐하수로 배출되므로 처리효율을 달성하는데 더욱 어렵게 되므로 미생물을 전공한 전문인력의 역할이 가일층 높아지게 되었다. 특히 1970년대 이후에는 생물공학 기법을 이용하여 독성 유해물질을 무해화(Detoxification) 하고, 광물화(Mineralization)할 수 있는 미생물 균류를 연구 개발하여 폐수나 폐기물을 처리하는데 활용코자하는 노력이 활발히 진행되고 있으며 일부는 큰 결실을 맺은 것도 있지만 아직도 연구가 진행 중인 분야가 더 많은 편이다. 그러므로 본 고에서는 지금까지 연구 보고된 결과와 앞으로 미생물을 전공한 우리들이 나아갈 방향을 제시코자 한다.