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GIS 와 위성영상을 활용한 3차원 문화재 정보 시스템 구현
송상훈(Sanghun Song),조명희(Myunghee Cho) 한국HCI학회 2008 한국HCI학회 학술대회 Vol.2008 No.2
본 논문에서는 위성영상 기반의 3차원 문화재 정보 시스템을 구현하기 위한 과정으로 고 해상 위성영상 제작을 위한 DEM(Digital Elevation Model)제작단계와 위성영상 자료를 수집하여 영상이 지니고 있는 왜곡을 보정하는 자료보정 단계, 사용 목적에 맞게 영상을 가공하여 저장하는 영상 생성단계를 통해 위성영상 기반의 3차원 지형정보를 생성하고, 3차원 스캐너를 활용한 대상지역 문화재의 DB 구축과 3차원 복원을 통해 3차원의 문화재 정보를 획득하고 질감 및 재질 사실적인 면을 강조하기 위한 텍스처 맵핑 과정을 통해 3차원 공간적인 조건 및 검색을 가능하게 함으로써 언제 어디서든 누구나 쉽게 문화재에 대한 정보를 검색할 수 있도록 Web3D를 활용한 3차원 문화재 정보 시스템을 구현하였다.
Song, Hohyun,Seo, Sanghun,Chang, Hongyoung Elsevier 2018 Current Applied Physics Vol.18 No.11
<P>SiN and SiCN film production using plasma-enhanced atomic layer deposition (PE-ALD) is investigated in this study. A developed high-power and high-density multiple inductively coupled plasma (multi-ICP) source is used for a low temperature PE-ALD process. High plasma density and good uniformity are obtained by high power N-2 plasma discharge. Silicon nitride films are deposited on a 300-mm wafer using the PE-ALD method at low temperature. To analyze the quality of the SiN and SiCN films, the wet etch rate, refractive index, and growth rate of the thin films are measured. Experiments are performed by changing the applied power and the process temperature (300-500 degrees C).</P>
Ethnopharmacological survey of medicinal plants in Jeju Island, Korea
Song, Mi-Jang,Kim, Hyun,Heldenbrand, Brian,Jeon, Jongwook,Lee, Sanghun BioMed Central 2013 Journal of ethnobiology and ethnomedicine Vol.9 No.-
<P><B>Background</B></P><P>This study aims to analyze and record orally transmitted knowledge of medicinal plants from the indigenous people living in Hallasan National Park of Korea.</P><P><B>Methods</B></P><P>Data was collected through the participatory rural appraisal method involving interviews, informal meetings, open and group discussions, and overt observations with semi-structured questionnaires.</P><P><B>Results</B></P><P>In this study, a total of 68 families, 141 genera, and 171 species of plants that showed 777 ways of usage were recorded. Looking into the distribution of the families, 14 species of Asteraceae occupied 11.1% of the total followed by 13 species of Rosaceae, 10 species of Rutaceae, and nine species of Apiaceae which occupied 5.0%, 7.1% and 3.0% of the whole, respectively. 32 kinds of plant-parts were used for 47 various medicinal purposes. Values for the informant consensus factor regarding the ailment categories were for birth related disorders (0.92), followed by respiratory system disorders (0.90), skin disease and disorders (0.89), genitourinary system disorders (0.87), physical pain (0.87), and other conditions. According to fidelity levels, 36 plant species resulted in fidelity levels of 100%.</P><P><B>Conclusion</B></P><P>Consequently, results of this study will legally utilize to provide preparatory measures against the Nagoya Protocol (2010) about benefit-sharing for traditional knowledge of genetic resources.</P>
Song, Hyun Jin,Son, Heejeong,Seo, Hyun-Ju,Lee, Heeyoung,Choi, Sun Mi,Lee, Sanghun Elsevier 2015 COMPLEMENTARY THERAPIES IN MEDICINE Vol.23 No.1
<P><B>Summary</B></P> <P><B>Objectives</B></P> <P>Self-administered foot reflexology is unrestricted by time and space, economical, and practical because it is easy to learn and apply. This study estimated the effectiveness of self-foot reflexology for symptom management in healthy persons through a systematic review and meta-analysis.</P> <P><B>Methods</B></P> <P>The participants were healthy persons not diagnosed with a specific disease. The intervention was foot reflexology administered by participants, not by practitioners or healthcare providers. The comparative studies either between groups or within group comparison were included. Our search utilized core databases (MEDLINE, EMBASE, Cochrane, and CINAHL). We also searched Chinese (CNKI), Japanese (J-STAGE), and Korean databases (KoreaMed, KMbase, KISS, NDSL, KISTI, and OASIS). The search was used MeSH terminology and key words (foot reflexology, foot massage, and self).</P> <P><B>Results</B></P> <P>Analysis of three non-randomized trials and three before-and-after studies showed that self-administered foot reflexology resulted in significant improvement in subjective outcomes such as perceived stress, fatigue, and depression. However, there was no significant improvement in objective outcomes such as cortisol levels, blood pressure, and pulse rate. We did not find any randomized controlled trial.</P> <P><B>Conclusions</B></P> <P>This study presents the effectiveness of self-administered foot reflexology for healthy persons’ psychological and physiological symptoms. While objective outcomes showed limited results, significant improvements were found in subjective outcomes. However, owing to the small number of studies and methodological flaws, there was insufficient evidence supporting the use of self-performed foot reflexology. Well-designed randomized controlled trials are needed to assess the effect of self-administered foot reflexology in healthy people.</P> <P><B>Highlights</B></P> <P> <UL> <LI> This systematic review assessed the effectiveness of self-foot reflexology for symptom management in healthy persons. </LI> <LI> Three non-randomized trials and three before-and-after studies without comparison showed that self-administered foot reflexology appeared to improve subjective outcomes rather than objective health outcomes. </LI> <LI> Owing to the small number of studies and methodological flaws, there was insufficient evidence supporting the use of self-performed foot reflexology to alleviate symptoms in healthy people. </LI> </UL> </P>
Lee, Sanghun,Lee, Kunho,Kang, Sungmin,Kang, Juhyun,Song, Sejin,Bae, Joongmyeon Pergamon Press 2018 International journal of hydrogen energy Vol.43 No.46
<P> Fibrous Ba<SUB>0.5</SUB>Sr<SUB>0.5</SUB>Co<SUB>0.8</SUB>Fe<SUB>0.2</SUB>O<SUB>3-δ</SUB>-Gd<SUB>0.1</SUB>Ce<SUB>0.9</SUB>O<SUB>1.95</SUB> (BSCF-GDC) composite cathodes are fabricated by a facile electrospinning method. However, the electropun BSCF-GDC cathode shows poor adhesion to a GDC electrolyte because of the high shrinkage rate of the electrospun BSCF-GDC cathode during sintering. To solve this adhesion issue, mixed BSCF fiber-GDC powder cathode is investigated. As a result, mixed BSCF fiber-GDC powder cathode with an enhanced adhesion is successfully fabricated. This improvement can be attributed to the modified microstructure with the GDC powder that joins the BSCF fibers to the GDC electrolyte at the cathode and electrolyte interface. The polarization resistance of the mixed BSCF fiber-GDC powder cathode is 0.10 Ω cm<SUP>2</SUP>, which is lower than 0.13 Ω cm<SUP>2</SUP> of conventional BSCF-GDC powder cathode at 700 °C. It is attributable to the improved oxygen gas and lattice oxygen diffusion, and the surface exchange of the mixed BSCF fiber-GDC powder cathode. The single cell with a mixed BSCF fiber-GDC powder cathode show 500 mW cm<SUP>-2</SUP> at 700 °C, which is 25% higher than conventional BSCF-GDC powder cathode. </P>
Oxygen plasma effects on the electrical conductance of single-walled carbon nanotube bundles
Kim, Sanghun,Kim, Ho-Jong,Lee, Hyeong Rag,Song, Jung-Hoon,Yi, Sam Nyung,Ha, Dong Han Institute of Physics [etc.] 2010 Journal of Physics. D, Applied Physics Vol.43 No.30
<P>We report the electrical properties of single-walled carbon nanotube bundles aligned between two electrodes with a gap of 8 µm by the alternating current dielectrophoresis method. The resistance increased exponentially as the number of structural defects increased from the oxygen plasma treatment. However, no noticeable change was observed in the carrier concentration and tube–tube interaction. The resistance dependence on the plasma treatment time was explained on the basis of the localization of electron states at defect sites. The aspects of the defects were examined by measuring the effects of ammonia adsorption on the conductance of the device.</P>
표상훈 ( Sanghun Pyo ),함형민 ( Hyoungmin Ham ),송주석 ( Jooseok Song ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.1
본 연구에서는 GERAN (GSM EDGE Radio Access Network) 망에서 다양한 무선환경에 따른 셀 재탐색을 연구하였으며, 시계열분석을 통하여 재탐색 이후의 RSS (Received Signal Strength)를 예측하여 개선된 재탐색 알고리즘을 연구하였다. Field 데이터를 통해 제안된 알고리즘을 분석하였으며, 이를 통하여 다양한 조건에 적합한 기법을 제안코저 한다.