농작물의 삼중수소 오염평가 모델 개발 및 실험검증

강희석,금동권,이한수,전인,최용호,이창우,Kang Hee Suk,Keum Dong-kwon,Lee Hansoo,In Jun,Choi Yong Ho,Lee Chang Woo 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.4

This paper describes a compartment dynamic model for evaluating the contamination level of kritium in agricultural plants exposed by accidentally released tritium. The present model uses a time-dependent growth equation of plant so that it can predict the effect of growth stage of plant during the exposure time. The model including atmosphere, soil and plant compartments is described by a set of nonlinear ordinary differential equations, and is able to predict time-dependent concentrations of tritium in the compartments. To validate the model, a series of exposure experiments of HTO vapor on Chinese cabbage and radish was carried out at the different growth stage of each plant. At the end of exposure, the tissue free water(TFWT) and the organically bound tritium(OBT) were measured. The measured concentrations were agreed well with model predictions.

다공성 고분자촉매 담체의 제조 특성

강희석,이한수,정흥석,안도희,손순환,정양근,송명재 ( Hee Suk Kang,Han Soo Lee,Hongsuk Chung,Do Hee Ahn,Soon Hwan Son,Yang Geun Chung,Myung Jae Song ) 한국공업화학회 1996 공업화학 Vol.7 No.4

중수형 발전소에서 삼중수소 제거 공정에 이용되는 소수성 고분자촉매의 담체인 스티렌-디비닐벤젠 공중합체의 제조 특성을 실험하였다. 스티렌-디비닐벤젠 고분자담체의 제조시 담체의 표면 특성에 대한 용매의 영향을 고찰하기 위하여 일정한 용매계에서 용매비를 변화시켜 solvating power 값을 구하였다. 거시기공 형태의 담체가 제조되기 위한 solvating power는 가교도가 20%일 때 3 이상, 가교도가 40%일 때는 1 이상의 값이 필요하였으며 약 40℃에서 2시간 이상 용액의 안정이 필요하였다. 또한 후처리 방법은 담체를 건조시키기 전에 용매를 제거하는 방법이 가장 우수한 기공 특성을 나타내었다. 담체의 입자 크기는 교반속도 및 계면활성제의 농도가 낮을수록 더 크게 생성됨을 알 수 있었다. This study represents the synthetic characteristics of styrene-DVB copolymer which is used as a catalyst support for the removal of tritium in CANDU. To evaluate the effect of solvent on the styrene-DVB polymeric support, the solvating power dependent on various kinds and composition of solvents was calculated. In order to synthesize the macroreticular type polymer bead, the following conditions are needed; solvating power should be higher than 1 for 20% of crosslinkage and higher than 3 for 40% of crosslinkage. Stabilization of organic monomers at about 40℃ for more than 2 hours is prerequisite. Removal of solvent prior to drying is preferred for the post-treatment of the bead. The polymer particle size was increased by lowering concentration of surfactant and stirring speed.

균형성과표(BSC)를 이용한 물류정보시스템 성과평가지표 개발

강희석(Hee-Suk Kang),김상훈(Sang-Hoon Kim) 한국IT서비스학회 2013 한국IT서비스학회지 Vol.12 No.3

The objective of this study is to empirically develop performance evaluation measures for LIS (logistics information systems) based upon BSC (balanced scorecard) model and determine the relative importance among four perspectives of BSC using AHP (analytic hierarchy process) methodology. Above all, forty nine probable measures for evaluating LIS performance were identified through reviewing the previous research related with SCM (supply chain management), logistics management, and information systems evaluation. And then, these probable measures were examined by means of coincidence analyses using three mutually exclusive criteria(validity of content, ease of measurement and reliability of measurement). Data for conducting the coincidence analyses were collected from LIS users and LIS development personnel. As the results of the coincidence analyses, it was found that 31 ones among 49 probable performance evaluation measures theoretically derived could be qualified for LIS performance evaluation. And AHP analysis showed that the weight of each perspective was respectively as follows : 46.8% for financial perspective, 31.3% for customer perspective, 14.8% for internal business process perspective, and 7.1 % for learning and growth perspective. The academic contribution of this study is that performance evaluation measures for LIS could be systematically and empirically developed on the basis of BSC. Also, the results of this study are expected to be used as a practice guideline of evaluating and improving LIS.

스티렌 - 디비닐벤젠 공중합체의 기공 특성에 대한 용매의 효과

강희석(Hee Suk Kang),이한수(Han Soo Lee),김광락(Kwang Rag Kim),안도희(Do Hee Ahn),백승우(Seung Woo Paek),이성호(Sung Ho Lee),정홍석(Hong Suk Chung) 한국고분자학회 1999 폴리머 Vol.23 No.3

코로나 시대의 경주지역 숙박산업 활성화 방안에 관한 이해관계자 인식 연구: FGI(심층면접) 중심으로

강희석(Kang, Hee-Seog),남태석(Nam, Tae-Suk) 한국관광레저학회 2021 한국관광레저학회 학술발표대회 Vol.2021 No.7

The accommodation industry in the recent post-covid 19 is rapidly changing in terms of safe and hygienic service, marketing and customer service, due to the needs of guests who prioritize safety. In this study, in order to study the problems and revitalization measures of the accommodation industry in the Covid 19 in the Gyeongju, we will enable the product package by the method of FGI and utilize it in cooperation with the experience tourism program in the region. In order to seek the development of a sustainable accommodation industry by revitalizing the economy of the Gyeongju region and revitalizing accommodation. To revitalize the accommodation industry, Gyeongsangbuk-do and Gyeongju City will support the reconstruction of tourism infrastructure and human resource development to strengthen accessibility, improve the system, joint public relations / marketing, and financial support for facility renovation, Presented that a realistic response is necessary.

코로나 시대의 경주지역 숙박산업 활성화 방안에 관한 이해관계자 인식 연구: FGI(심층면접) 중심으로

강희석(Kang, Hee-Seog),남태석(Nam, Tae-Suk) 한국관광레저학회 2021 관광레저연구 Vol.33 No.7

포스터 발표 - 무기재료분과 / 전기화학분과 / 촉매분과 : 비활성 알루미나 충전컬럼에서의 수소동위원소 분리특성

김광락,강희석,백승우,이성호,안도희,이한수,정흥석 ( Kwang Rag Kim,Hee Suk Kang,Seung Woo Paek,Sung Ho Lee,Do Hee Ahn,Han Soo Lee,Hong suk Chung ) 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1990 No.3

N/A In the fields of operation and handling of the hydrogen isotope facility, and of management technology for the nuclear fusion source, gas chromatography has been used as one of the practical techniques for the separation and the enrichment of hydrogen isotopic gases including tritium. Chromatographic separation experiments of the hydrogen isotope mixture (hydrogen, deuterium and tritium) were carried out by use of a commercially available gas chromatograph. An aliquot of the gas sample was injected with a specially designed vacuum sampler into the stream of inert carrier gas which goes through the separation column at liquid nitrogen temperature. The complete separation of hydrogen isotopic molecules was observed with an alumina adsorbent partially deactivated by coating with 10% manganese chloride. In addition, fairly good separation conditions without appearance of the nuclear spin isomers in a shorter retention time, which would be useful for the practical applications of the hydrogen isotope separation and enrichment, were obtained.

비활성 알루미나 충전컬럼에서의 수소동위원소 분리특성

김광락,강희석,백승우,이성호,안도희,이한수,정흥석 ( Kwang Rag Kim,Hee Suk Kang,Seung Woo Paek,Sung Ho Lee,Do Hee Ahn,Han Soo Lee,Hong suk Chung ) 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1997 No.0

N/A In the fields of operation and handling of the hydrogen isotope facility, and of management technology for the nuclear fusion source, gas chromatography has been used as one of the practical techniques for the separation and the enrichment of hydrogen isotopic gases including tritium. Chromatographic separation experiments of the hydrogen isotope mixture (hydrogen, deuterium and tritium) were carried out by use of a commercially available gas chromatograph. An aliquot of the gas sample was injected with a specially designed vacuum sampler into the stream of inert carrier gas which goes through the separation column at liquid nitrogen temperature. The complete separation of hydrogen isotopic molecules was observed with an alumina adsorbent partially deactivated by coating with 10% manganese chloride. In addition, fairly good separation conditions without appearance of the nuclear spin isomers in a shorter retention time, which would be useful for the practical applications of the hydrogen isotope separation and enrichment, were obtained.

제주지역 주요 활엽수의 대기 중 CO₂ 흡수율과 수분이용효율의 계절적 변화

오순자,김현철,강희석,신창훈,고석찬,Oh, Soonja,Kim, Hyoun-Chol,Kang, Hee-Suk,Shin, Chang-Hoon,Koh, Seok Chan 한국환경과학회 2020 한국환경과학회지 Vol.29 No.2

Seasonal changes in the CO₂ fixation rate and water-use efficiency in the leaves of six evergreen and two deciduous broad-leaved tree species on Jeju Island, Korea, were measured using a portable photosynthesis analyzer, to identify which species are most efficient in taking up CO₂ from the air. The CO₂ fixation rate was high in the deciduous species in spring and summer and decreased in fall, whereas it was high in the evergreen species in summer and fall and decreased in winter. The rate remained high in the deciduous tree Prunus yedoensis from spring to fall (> 7.1 μmol CO₂/m₂/s) and in two evergreen trees, Castanopsis cuspidata var. sieboldii and Cinnamomum camphora, in summer and fall (7.0 9.9 μmol CO₂/㎡/s). Therefore, these tree species fix atmospheric CO₂ effectively. The water-use efficiency was higher in evergreen species than in deciduous species regardless of the season. Exceptionally, it was high in the deciduous species Zelkova serrata in spring and summer (> 100 μmol CO₂/mol H₂O), suggesting that Z. serrata is a useful tree for dry conditions due to its tolerance of water stress. The regressions of the CO₂ fixation rate versus the evaporation rate and stomatal conductance were linear and non-linear, respectively. This suggests that the stomatal activity of leaves plays an important part in CO₂ fixation of plants. In conclusion, C. cuspidata var. sieboldii, C. camphora, and P. yedoensis should be planted along roads or in urban spaces for the greening of cities and mitigation of CO₂ concentrations in the air.

경북 마이스 산업의 유니크 베뉴에 대한 이해관계자 인식

남태석(Tae-Suk Nam),강희석(Hee-Seog Kang) 한국엔터테인먼트산업학회 2018 한국엔터테인먼트산업학회 학술대회 논문집 Vol.2018 No.11

본 연구는 경상북도의 마이스 산업의 유니크 베뉴 활성화 방안을 모색하기 위해 마이스 산업 · 유니크 베뉴관계자, 정부기관 실무자, 컨벤션 센터 실무자 그리고 컨벤션 · 유니크 베뉴 관련 관광학 교수를 대상으로 FGI(포커스 그룹 인터뷰)를 통한 질적 연구를 수행하였다. 결론적으로, 본 연구에 참여한 FGI 대상자들은 경상북도 마이스 산업과 유니크 베뉴을 연계한 관광상품 활성화에 관한 인식 및 경북 지역 활성화를 위해서는 경북지역 컨벤센센터을 연계한 다양한 관광상품과 지역의 지속가능한 발전에 관심을 보였다. 즉 마이스 산업 · 유니크 베뉴 관계자는 정부 및 지자체에서 정책적인 지원 및 시설 노후화로 인한 실무적인 지원에 대한 부분이 부족하고, 지방자치단체 간의 협력적 네트워크 구축과 이를 통한 각 지역의 이해관계자 모두 윈-윈하는 전략을 펼칠 필요가 있을 것이다. 특히 경북 지역의 각 지자체 단체장의 관심이 필요하며, 경북지역의 유니크 상품 다양화에 개발 필요성에 대한 부분이 필요하다고 지적하였다. 경북지역의 마이스 산업과 유니크 베뉴 활성화를 위해서는 경상북도와 컨벤센 센터와 연계한 전략적 제휴가 필요하며, 경북지역의 통합 컨벤션뷰로 신설에 대한 장기적인 판매 전략이 필요하다고 제시하였다. 본 연구는 FGI 분석 결과를 통한 질적 연구를 수행하였기 때문에 분석결과를 일반화하기에는 다소 한계점이 있다. 이를 극복하기 위해서는 향후 구조화된 설문조사를 통한 정량적 연구로 보다 타당성 높은 연구결과를 담보할 수 있을 것이다. 또한 경북지역의 마이스 산업·유니크 베뉴 관계자, 정부기관 실무자, 다양한 분야의 교수에 대한 표본의 수를 좀 더 확보하여 분석방법의 타당도와 신뢰도를 높일 수 있도록 질적 연구를 강화하기 위한 노력도 수반되어야 할 것이다. This study was conducted by MICE Industry and UNIQUE VENUE in North Gyeongsang Province, government agencies, convention centers, and convention and United Nations. Through FGI analysis results, various stakeholders such as MICE industry in North Gyeongsang Province recognized by stakeholders, issue of disabling Unique VENUE, product development for continuous growth, and activation of UNIQUE VENUE products. FGI participants in the study showed a variety of sustainable tourism products linking the development of the convention center in North Gyeongsang Province to recognize the activation of tourism products linking the MICE industry and UNIQUE MICE industry and UNIQUE VENUE officials are lacking in the areas of government and local governments in terms of policy support and practical support due to aging facilities.