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        • 통신서비스 산업의 경쟁전략 분석을 위한 진화모형

          이승규,손병규,최성철 한국경영과학회 1997 한국경영과학회 학술대회논문집 Vol.- No.2

          The drastic structural changes in telecommunications industry are imposing new strains on operators, regulators and customers. Many researchers have offered diverse frameworks for the changes from the perspectives of sociology, technology, and/or economics. However, there have been few attempts to document the competitive phenomena from management perspectives because of the technological complexities and dynamism in the fundamental transition of competition. In this study, we examine competitive environment in telecommunications industry, and identified five structural elements; telecom operator, competitors, regulation, suppliers, and customer demand. The suggested framework is used to provide a basis for explaining the changes in the characteristics of individual elements and the interactions among them. The dynamic industry-specific changes will be explained through an evolutionary model. We specify the characteristics of progressive stages and the determinants of the evolution. Changes are reviewed in terms of five criteria; regulations and competitions, value chain, technology, customers demand, and internal operations, The result of this study will be useful in analyzing and predicting industry structure and major participants' strategic behaviors and decision patterns. This study can alse be extended to other industries facing dynamic structural changes.

        • IOT Node에 의한 3S 주차 설비

          이승규 대한교통학회 2016 대한교통학회 학술대회지 Vol.75 No.-

          정부3.0 국민행복 시대”의 주차정책 실현을 위한 신기술을 적용한 혁신적 주차설비 개념이 요구 되고 있습니다. 기존의 다양한 문제점을 해소할 수 있는 신개념 주차설비는 안전하고, 똑똑하고, 고속 입·출차를 실현하여 이용자의 편리성 향상과 거부감•불안감을 해소할 수 있는 진화된 방법론이 적용되어야 합니다. 주차문제는 국민생활의 일부로써 도시공간과 주차수요 특성에 적합한 주차장을 공급해야 합니다. 주차문제에 능동적으로 대응하기 위한 “IoT Node에 의한 3S(Safety, Smart, Speed) 주차 설비 개념”은 공간활용 방법의 극대화, 친환경 주차장 건설, 실시간 주차정보제공, 불법주차문제 해소에 기여, 이용자 만족, 주차장 공급 등의 융통성이 확보되는 진화한 기술로 주차문화 혁신을 기대할 수 있습니다. 사회적 필요에 의한 주차정책 실천방안으로 이용이 편리한 주차장 공급을 통하여 경제적 부가가치 창출, 쾌적한 도시공간의 일부, 주차장 이용 효율향상, 주차공간과 ICT융합을 통한 사회적 기회비용 절감을 추구 합니다. 사물인터넷 기술(IoT)을 적용한 3S 주차설비가 주차문제를 해소하는 주차 설비로써의 역할을 다할 것으로 기대합니다.

        • KCI등재

          Taxonomy of the genus Pelioptera Kraatz (Coleoptera: Staphylinidae: Aleocharinae) in Korea

          이승규,안기정 국립중앙과학관 2019 Journal of Asia-Pacific Biodiversity Vol.12 No.2

          A taxonomic study of Korean Pelioptera Kraatz is presented. Two species, Pelioptera (Pelioptera) opaca Kraatz and P. (P.) testaceipennis (Motschulsky), are recognized and the latter is new to the Korean peninsula, while the former is a new addition to South Korea. A key, redescriptions, and illustrations of diagnostic characters are provided.

        • 단일 센터에서 시행한 간문부담관암의 수술적 절제후 생존율에 영향을 미치는 인자에 대한 분석

          이승규 한국간담췌외과학회 2007 한국간담췌외과학회지 Vol.11 No.3

          Purpose: Although curative resection of hilar cholangiocarcinoma (HCCC) remains a difficult challenge, only curative resection with tumor free margins can guarantee a favorable outcome. In this report, we retrospectively analyzed the survival data after surgical resection of HCCC to determine the survival rate and the related factors at a single, large-volume medical institute. Methods: Between June 1989 and June 2005, surgical intervention with curative intent was performed on 301 patients. We retrospectively analyzed the survival data via a review of the medical record. Results: Among the 259 cases of resection, curative (R0) resection with tumor-free margins was achieved in 186 cases (71.8%). Of these 186 cases, 177 patients underwent various types of hepatectomy with caudate lobectomy and bile duct resection. Combined pancreatoduodenectomy was performed in 19 patients and portal vein resection was performed in 51 patients. In-hospital mortality developed in 11(4.3%) of the 259 patients who underwent resection. The 1-, 3- and 5-year survival rates of patients who underwent R0 resection were 83.3, 42.0 and 29.3%, respectively. Univariate analysis revealed that curability, T stage, lymph node involvement, histologic differentiation and perineural invasion were associated with patient survival. Multivariate analysis showed that curability and lymph node involvement were statistically significant prognostic factors. Conclusion: Tumor-positive margins and lymph node involvement resulted in poor outcomes. Intensive perioperative management and a surgeon's aggressive efforts to attain clearance of tumor can minimize the postoperative mortality and maximize survival for patients with HCCC. Purpose: Although curative resection of hilar cholangiocarcinoma (HCCC) remains a difficult challenge, only curative resection with tumor free margins can guarantee a favorable outcome. In this report, we retrospectively analyzed the survival data after surgical resection of HCCC to determine the survival rate and the related factors at a single, large-volume medical institute. Methods: Between June 1989 and June 2005, surgical intervention with curative intent was performed on 301 patients. We retrospectively analyzed the survival data via a review of the medical record. Results: Among the 259 cases of resection, curative (R0) resection with tumor-free margins was achieved in 186 cases (71.8%). Of these 186 cases, 177 patients underwent various types of hepatectomy with caudate lobectomy and bile duct resection. Combined pancreatoduodenectomy was performed in 19 patients and portal vein resection was performed in 51 patients. In-hospital mortality developed in 11(4.3%) of the 259 patients who underwent resection. The 1-, 3- and 5-year survival rates of patients who underwent R0 resection were 83.3, 42.0 and 29.3%, respectively. Univariate analysis revealed that curability, T stage, lymph node involvement, histologic differentiation and perineural invasion were associated with patient survival. Multivariate analysis showed that curability and lymph node involvement were statistically significant prognostic factors. Conclusion: Tumor-positive margins and lymph node involvement resulted in poor outcomes. Intensive perioperative management and a surgeon's aggressive efforts to attain clearance of tumor can minimize the postoperative mortality and maximize survival for patients with HCCC.

        • 모듈화와 자동차 가치사슬의 진화

          이승규,박중구 한국자동차산업학회 2005 한국자동차산업학회 학술대회 자료집 Vol.- No.-

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        • KCI등재

          Association between the g.7516G>C SNP in the Fatty Acid Binding Protein 4 Gene and Economic Traits in Hanwoo

          이승규,이영섭,김훈,배윤호,이성진 강원대학교 동물자원공동연구소 2020 동물자원연구 Vol.31 No.3

          The fatty acid binding protein 4 (FABP4) gene plays an important role in lipid metabolism and homeostasis in adipocytes. The objective of this study was to analyze the association between a single nucleotide polymorphism (SNP), g.7516G>C, in the FABP4 gene and economic traits of Korean native cattle, Hanwoo. Primers were designed to target a region of the FABP4 gene between nucleotides 7417 and 7868 (AAFC01136716). The SNP, which was detected by polymerase chain reaction-based restriction fragment length polymorphism (PCR-RFLP) method using restriction enzyme MspA1I, was genotyped in 319 animals of Hanwoo steer population. Statistical analysis showed that the SNP genotype of the FABP4 gene significantly affected carcass weight (CW, p<0.01), longissimus muscle area (LMA, p<0.001), and marbling score (MS, p<0.001). GG allele of the SNP on 246 animals in a Wagyu × Limousin F2 reference population showed a higher MS (p<0.05) and subcutaneous fat depth (p<0.05) in previous report. But CC allele of the SNP showed greater values for MS, LMA, and CW in Hanwoo steers. These results suggest that the g.7516G>C SNP located in the FABP4 gene may affected differently depending on the cattle breed and can be used as a genetic selection marker in Korean native cattle.

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