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송지훈,최정화,김종한,정민영,박수연 대한한방안이비인후피부과학회 2020 한방안이비인후피부과학회지 Vol.33 No.3
Objectives : The aim of this study is to report a case of idiopathic oculomotor nerve palsy improved by Korean Medicine therapy including needle-embedding therapy. Methods : We treated a 69-year old male patient who has Rt. ptosis, Rt. eye movement impairment, and dizziness with various Korean medical therapy including acupuncture, Bojungikgitanggami, and Hominis Placenta pharmacopuncture. To promote recovery, we additionally performed needle-embedding therapy to periocular acupoints. Results : Ptosis started to remarkably improve after performing needle-embedding therapy. After 54 days of treatment, ptosis and eye movement impairment of Rt. eye were significantly improved similar to the normal eye. Dizziness was cured in a few days after administration. Conclusions : This case suggests Korean medicine including needle-embedding therapy is effective against oculomotor nerve palsy symptoms especially for ptosis.
Vibrational energy flow analysis of penetration beam-plate coupled structures
송지훈,홍석윤,강연식,길현권 대한기계학회 2011 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.25 No.3
This study concerns the transmission of vibrational energy through beam-plate junctions by energy flow analysis, which is an analytic tool for predicting the frequency averaged vibration response of built-up structures in the medium to high frequency ranges. A semiinfinite beam perpendicularly connected to an infinite plate is studied using the wave transmission approach. To calculate the power transmission and the reflection coefficients of the beam-plate junction, compatibility and equilibrium conditions are applied when each wave component is incident on the beam and plate, respectively. Power coefficients are calculated and plotted against frequencies for different dimensions and the directivity pattern of the scattered waves in the plate show close agreement with that of the rigid inclusion as the frequency increases. The results obtained are applied to the finite beam and the circular plate coupled structure, and the energy densities obtained from energy flow analysis show better agreement with analytic solution results as frequencies are increased.
New Report of Two Species of Genus Pentias (Crustacea: Malacostraca: Isopoda) from South Korea
송지훈,민기식 한국환경생물학회 2015 환경생물 : 환경생물학회지 Vol.33 No.2
Two marine isopods, Pentias hayi Richardson, 1904 and P. thompsoni Collinge, 1916 were verified as unrecorded species in South Korea. The genus Pentias is reported for the first time in South Korea. These two isopods were collected from Heuksan-do Island and Ulleung-do Island from South Korea, respectively. We provide descriptions of the diagnostic characteristics, illustrations of two species and their partial sequences of the mitochondrial cytochrome c oxidase subunit 1 (CO1) for molecular characteristics.
스타트업 데이터 기반의 시장융합 다이내믹스 분석: 한국을 중심으로
송지훈 한국산업융합학회 2022 한국산업융합학회 논문집 Vol.25 No.4
Market convergence plays an increasingly important role in sustaining competitiveness and providing impetus for the new product development. However, existing research focused mostly on the analysis of convergence at technology level. This study examines the phenomenon of market convergence based on the start-up data. Similar to the analysis of technology convergence, this study adopts the concept of co-classification analysis for constructing the co-occurrence matrix and the corresponding network. In this context, network centrality measures were calculated to assess the influence of individual market segments. Based on three metrics “growth”, “persistence” and “novelty”, the market convergence dynamics were explored and promising interactions between two distinct market segments were highlighted. The findings suggest that both segments “AI” and “blockchain” are acting as a driver that fosters market convergence in the startup landscape. The analysis results can provide valuable information for the R&D managers and policy makers in the design of targeted policies and programs, which can promote market convergence and interdisciplinary knowledge transfer.
Sensor Network 활용을 위한 To-Be 프로세스 설계 : 자동차, 조선 산업을 중심으로
송지훈,임재환 한국정보기술융합학회 2010 한국정보기술융합학회논문지 Vol.3 No.1
국내 제조 기업들은 완제품 위주의 대량생산 전략 채택에 따른 기업의 내실화 미흡 및 핵심 부품 기술과 노하우 등 지식을 바탕으로 한 선진형 비즈니스 전환이 미숙하다. 일반 제조기업의 생산현장에는 전사적 자원관리 시스템을 도입하고, 기존에 설치된 제조설비에 전자 장치를 결합, 부품 포장 단위 수준으로 바코드등을 부착하여 사용하고 있지만, 기업관리 시스템과 생산 시스템과의 단절 지점이 발생하여 원활한 정보흐름이 발생되지 못하고 있다. 따라서 본 논문에서는 자동차, 조선의 제조업을 중심으로 Sensor Network 를 활용하기 위한 To-Be 프로세스를 설계하고자 한다.
First Record of Cleantioides planicauda (Crustacea: Isopoda: Holognathidae) from South Korea
송지훈,민기식,김민섭 한국동물분류학회 2014 Animal Systematics, Evolution and Diversity Vol.30 No.1
Cleantioides planicauda (Benedict, 1899) has previously been recorded in China and Japan. In the presentstudy, to our knowledge, we report for the first time the occurrence of this species in South Korea. Here, weprovide detailed descriptions and illustrations of the diagnostic characteristics of C. planicauda. Further, forthe first time, we determined the partial sequence of mitochondrial cytochrome c oxidase subunit 1 (CO1)gene of C. planicauda for molecular characteristic. Additionally, we provide a key to the Korean species anddistribution of the genus Cleantioides. As a result of this study, four species of the genus Cleantioides,including C. planicauda, have now been recorded in South Korea.
New Record of Three Isopod Species (Crustacea: Malacostraca: Isopoda) from South Korea
송지훈,민기식 한국환경생물학회 2015 환경생물 : 환경생물학회지 Vol.33 No.2
Three marine isopods, Symmius yamaguchiensis Shimomura, 2008, Colanthura pigmentata Kensley, 1980 and Synidotea nipponensis Nunomura, 1985 are reported for the first time in South Korea. The family Chaetiliidae, and genera Symmius and Colanthura are new to South Korea. We provide descriptions of the diagnostic characteristics, illustrations of three species and their partial sequences of the mitochondrial cytochrome c oxidase subunit 1 (CO1) for molecular characteristics.