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한국기업의 러시아 플랜트 건설사업 진출을 위한 리스크분석
서현택,오재훈,김진희,허영기 대한건축학회지회연합회 2015 대한건축학회연합논문집 Vol.17 No.5
최근 유가 상승 및 급격한 기술개발에 기인하여 세계적으로 확대되고 있는 셰일가스 개발 기대로 인해 해외 플랜트 시장의 근간 급변화가 발생하고 있다. 특히 세계 최대의 천연가스 보유국가인 러시아에 관심이 집중되고 있으며, 주변국들은 러시아 플랜트시장으로의 진출을 급속하게 추진하고 있는 실정이다. 따라서 국내 종합 건설 회사들의 러시아 시장 진출을 위한 기본적인 연구로서 러시아 플랜트 건설사업에 참여할 때 발생 가능한 리스크들을 분석하였다. 러시아 시장에 직접적인 경험을 가지고 있는 전문가들과의 인터뷰 및 설문조사를 실시하고 계층화 분석법(AHP 기법)을 적용하여, ‘러시아 현황’, ‘러시아 건설시장 여건’, ‘발주처-러시아의 사업관리 능력’, ‘국내 건설기업의 러시아 시장진출에 부족한 역량’ 등 네 개의 각 영역별로 총 20개 리스크 인자들의 중요도를 산정하였다. 이러한 결과는 향후 국내 건설 회사들이 성공적으로 러시아 플랜트 시장에 진출하는 데 매우 유용하게 활용 될 수 있을 것이다. Recent high expectation on shale gas development in the world led by rise of oil price and rapid technology advance induces huge changes in global plant industry. In particular, the world shows much interest in Russia since the country has the largest natural gas reserves in the world and many surrounding nations are busy for preparing to enter the large market. Risks are analyzed and identified that should be managed for Korean construction companies considering of newly entering the industry. Total of 20 risks were listed and weighted under four categories, namely ‘Russia status,’ ‘Russia construction industry status,’ ‘Insufficient capability of Korean companies for entering Russian market.’ ‘Project management ability of Russia’, from series of expert interviews and application of Analytic Hierarchy Process. The result will be beneficial for Korean construction companies to enter and run successful projects.
서현택,김윤성,강래형,옥혜성,변기섭,윤성훈,여혜주,이승은 대한결핵 및 호흡기학회 2017 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.124 No.-
Background: Recently, there have been several articles investigated the diagnostic value of IGRA in the diagnosis of tuberculous pericarditis. IGRA has been reported that a high sensitivity and specificity in these articles. Thus, we conducted the present meta-analysis to comprehensively evaluate the overall diagnostic accuracy of IGRA upon tuberculous pericarditis. Methods: We conducted electronic English-language literature searches of MEDLINE via PubMed, Embase and Cochrane Library database from the earliest available date of indexing through May 31, 2017. We determined the sensitivities and specificities across studies, calculated positive and negative likelihood ratios (LR+ and LR-), and constructed summary receiver operating characteristic curves parameters. Results: Across 8 studies (591 patients), the pooled sensitivity for IGRA methods was 0.92 (95% CI; 0.87-0.95) without heterogeneity (χ2=14.31 , p=0.05) and a pooled specificity of 0.88 (95% CI; 0.75-0.94) with heterogeneity (χ2=9.71, p= 0.21). Likelihood ratio (LR) syntheses gave an overall positive likelihood ratio (LR+) of 17.5 (95% CI; 9.9-30.9) and negative likelihood ratio (LR-) of 0.08 (95% CI; 0.05-0.14). The pooled DOR was 214 (95% CI; 105-436). Conclusion: IGRA demonstrated good sensitivity and specificity for diagnosis of TB pericarditis. At present, the literature regarding remains the use of IGRA for diagnosis of TB pericarditis still limited; thus, further large multicenter studies would be necessary to substantiate the diagnostic accuracy of IGRA prediction of TB pericarditis.
왕고들빼기, 갯기름나물, 곤달비, 곤드레의 채종시기가 종자 생산성에 미치는 영향
서현택 ( Hyun Taek Seo ),김세원 ( Se Won Kim ),문윤기 ( Youn Gi Moon ),박기덕 ( Ki Duk Park ),박기진 ( Ki Jin Park ) 강원대학교 농업생명과학연구원 2022 강원 농업생명환경연구 Vol.34 No.0
This study was conducted to investigate the effects of the timing of seed harvest on the seed productivity of Wang-godeulppaegi [Lactuca indica var. laciniata (O. Kuntze) Hara], Gaesgileumnamul (Peucedanum japonicum Thunb.), Gondalbi [Ligularia stenocephala (Maxim.) Matsum], and Gondeule [Cirsium setidens (Dunn) Nakai] . Wang-godulpagi and Gondeule were harvested at 15, 30, and 45 days after flowering; Gondalbi was harvested at 30, 45, and 60 days after flowering; and seaweed was harvested after 45, 60, and 90 days. In both the field and greenhouse, total and product seeding amounts were highest in the treatment area 30 days after flowering. The yield of products per 10a under field cultivation was high in the order 30 > 15 > 45 days after flowering. Comparatively, higher yields were obtained at the same time points under greenhouse cultivation. Under both field and greenhouse cultivation, the total and commercial yields of Gondeule were highest in the treatment area 30 days after flowering. Yield of products per 10a under field cultivation was high in the order 30 > 15 > 45 days after flowering, and again higher yields were obtained under greenhouse cultivation. For Gondalbi, the highest total and commercial yields under both field and greenhouse cultivation were obtained at 45 days after flowering in the order 45 > 60 > 30 days after flowering, with higher yields being obtained under greenhouse cultivation. For Gaesgileumnamul, the highest total and product yields under both field and greenhouse cultivation were obtained at 60 days after flowering, with higher yields being obtained under greenhouse cultivation. On the basis of these findings, it was considered suitable to harvest Wang-godeulppaegi and Gondeule after cutting at 30 days after flowering. In contrast, for Gondalbi and Gaesgileumnamul, seed productivity could be enhanced by delaying harvesting until approximately 45 and 60 days after flowering, respectively.
아스파라거스 비가림 재배 시 1차 수확기간이 2차 수확시기 및 수량에 미치는 영향
서현택 ( Seo H. T. ),김영진 ( Y. J. Kim ),장은하 ( E. H. Jang ),원재희 ( J. H. Won ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2018 강원 농업생명환경연구 Vol.30 No.2
This study was carried out to investigate the effects of the first harvest period on the timing and yield of the second harvest of asparagus (Asparagus officinalis L.) under greenhouse conditions. A comparing between the first harvest and second harvest yields according to the fern growth timing suggested that the shorter the first harvest period, the more rapidly the second harvest could be undertaken after the first harvest. It was subsequently possible to begin the second harvest after the mother fern had experienced growth for 20-30 days. The first harvest yield of ‘treatment first harvested for 2 weeks’ was the lowest at 294 kg/10a, whereas the second harvest yield was the highest at 1,336 kg/10a. The first harvest yield of ‘treatment first harvested for 8 weeks’ was the highest at 795 kg/10a.