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컴퓨터 赤外線 全身體熱撮影과 FNT을 통해 살펴본 Bell's palsy에 대한 침치료의 臨床的 考察
尹敏永,趙恩嬉,許泰永,趙南根,文炯喆 한국전통의학연구소 2001 한국전통의학지 Vol.11 No.1
Object : This study is designed to evaluate the clinical therapy of acupuncture by the data of DITI(Digital Infrared Thermographic Imaging) and FNT(Facial Nerve stimulation Test) examination and the changes of clinical symptoms after the therapy of acupuncture in the patients with Bell's palsy. Contents : The conservative therapy with acupuncture was performed during 1-8weeks. The acupuncture points of S4, S6, G14, S2, BL2, SI18, TE23, LI4 and S36 were used. In the pre- and post therapy, DITI examinations was performed in patients who had Bell's palsy and were treated by acupuncture, and then tried to correlate the results of clinical symptoms with the difference of thermographic findings. And FNT examinations were performed in the same patients above, and then tried to correlate the results of clinical symptoms with the difference of nerve response findings. Setting : The standard routine thermographic examination with thermography (DITI) and nerve response with FNT(Facial Nerve Stimulation Test) were performed in the 16 patients with Bell's palsy at pre- and post acupuncture. Patients : Thermographic imaging of 16cases was analyzed. They had diagnosed Bell's palsy. They were treated by acupuncture and moxibustion therapy in Wonkwang Oriental Hospital from Jauary, 1999 to February, 2000. Results : 1) The results of treatment showes that 56.25% of patients achieved clinical excellent recovery and 31.25% achieved good recovery. After compairing the DITI results before and after treatment, we found 43.75% of patients achieved excellent recovery and 43.75% achieved good recovery. 2) After compairing the FNT results before and after treatment, we found 25% of patients achieved excellent recovery and 56.25% achieved good recovery. Conclusion : 1) Acupuncture showed good results over 87.5% in clinical evaluation and 87.5% in DITI. Thermographic examination showes terapeutic effect of acupuncture treatment. 2) Acupuncture showed good results over 87.5% in clinical evaluation and 81.25% in FNT. FNT showes nerve response recovery effect of acupuncture treatment.
이상윤,라병욱,박동수,황인헌,이덕동,신영남,박성배,이동욱,박용석,박형근,손상호,권태근,채경락,정경득 慶北大學校 自然科學大學 1986 自然科學論文集 Vol.4 No.-
An Ac-type Plasma Display Panel (PDP) operating with Ne-Ar(0.1%) Penning mixture gas is fabicated. The characterics of the panel with electrodes covered with thin and thick dielectric layers are studied. The brightness of the Neon-orange light emitted by the panel measured as function of applied voltage and frequency. As an application, a graphic display system equipped with PDP showing still and moving pictures is made.
남대근(Nam, Dae-Geun),이수형(Lee, Su-Hyung),정창일(Jung, Chang-Il),윤형표(Yoon, Hyung-Pyo),조형호(Jo, Hyung-Ho) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.11
최근 에너지 절감과 환경 문제에 대한 관심이 커지면서 친환경적이고 에너지 효율이 높은 LED에 대한 관심이 대두되고 있으며, 국가 저탄소 녹색성장에 맞는 신성장동력산업의 하나로 LED가 선정되어 적극적으로 육성되고 있다. LED를 활용한 조명등은 현재까지 활발한 연구개발이 진행되었으며 백열전구를 능가하는 조명 효율을 확보하여 조명 광원으로서 이용되고 있다. 그런데 선박용 조명등의 경우에는 아직 관련 기술개발이 초기단계에 머물러있어 대부분의 선박들이 기존의 백열등 및 형광등과 같은 조명등을 사용하고 있다. 이러한 유리 조명등은 고소비전력과 제한된 수명에 따른 높은 유지비 및 제품 누수나 파손 등과 같은 안전성의 문제가 있다. 이에 따라 장기적인 관점에서 선박용 LED 조명 등에 대한 기술 개발이 필요할 것으로 보이며 기술 개발을 저해하는 요소인 방열, 가격 등에 대한 추가적인 기술개발이 뒷받침 되어야 할 것으로 보인다. 한국생산기술연구원에서는 부산광역시 지원사업의 일환으로 선박용 LED 조명등을 개발하고 있으며, 체계적인 연구를 위하여 선박용 LED 조명등의 요소기술에 대한 연구동향과 기술특성을 분석하고 있다. 본 논문에서는 선박용 LED 조명등 개발에서 요구되는 요소기술에 대한 기술개발동향을 살펴보고자 한다. 고효율의 선박용 LED 조명등 개발에 필요한 요소기술로는 방열, SMPS, 광학, 제품 내진동, 제품 방수 등의 설계 및 제작기술이 있다. 이러한 요소기술을 알아보고 선박용 LED 조명등 개발의 방향을 제시하고자 한다.
Bio-Inspired Synthesis of a Silicate/PMMA Composite
Nam, Kyung Mok,Lee, Yoon Joo,Kwon, Woo Teck,Kim, Soo Ryong,Shin, Dong-Geun,Lim, Hyung Mi,Kim, Hyungsun,Kim, Younghee The Korean Ceramic Society 2014 한국세라믹학회지 Vol.51 No.1
Abalone shell is composed of 95 wt% $CaCO_3$ platelets and 5 wt% of a protein-rich organic matrix which acts as an adhesive layer, connecting aragonite tablets, thus maintaining the structural integrity of the composite. By mimicking abalone shell, we prepared a silicate plate/polymer nanocomposite by infiltrating PMMA between silicate layers and warm-pressing them at $200^{\circ}C$ for 1 h under 15 tons to make organic-inorganic composite materials. To examine the organic-inorganic composite materials after the warm-pressing procedure, the composite sample was analyzed with FE-SEM and TG. The bending strengths and densities of the composites prepared by a silicate plate and PMMA after the warm-pressing process were ~140 MPa and 1.5, respectively.
고등학교의 시설 및 교원조직 운영 실태: 공학과 별학 간의 비교
권오남,곽삼근,임 형,허라금 이화여자대학교 사범대학 교과교육연구소 2001 교과교육학연구 Vol.5 No.2
남녀공학 교육형태가 세계적으로 확산되는 추세 속에서 우리 나라 공학 교육은 실질적인 양성 평등교육에 대한 충분한 사전 준비 없이 확대·시행되고 있다. 이러한 상황에서 공학교육의 실태와 문제점을 양성평등의 실현이라는 차원에서 분석해 보고자 한다. 성별 학교 유형에 따른 학교 운영상의 차이점을 파악하기 위해 남녀공학, 여학교, 남학교의 학교 운영 실태 및 시설현황을 분석해 본다. 연구 방법은 서울, 대구, 경기, 전북, 제주의 일반계 고등학교를 대상으로 1·2차의 수정작업을 거쳐 개발된 설문지를 사용하여 연구를 수행하였다. 연구 결과에 따르면, 의사결정직의 구조에서 상위직의 여성의 비율이 남녀 공학과 남학교에 비해 여학교의 경우에 상대적으로 높게 나타나고 있으며, 계열별 주요 교과 교사의 성별 분포에서는 인문계 교과에서 여교사 비율이 높게 나타나고 있음을 알 수 있었다. 이러한 인문계 영역의 여성의 편중 현상은 인문계 계통의 대학에 여학생의 진학 비율이 높게 나타나고 있는 데에서도 보여지고 있다. 또한 연구결과를 살펴보면, 교복 착용이나 교훈 등에서 여학생의 활동을 제약하는 요소들을 내재하고 있는 것으로 밝혀졌고, 시설물도 부족하게 제공받고 있음을 볼 수 있었다. 학교의 운영체계는 학생들에게 역학 모델로서 큰 영향이 미칠 수 있다. This study attempted to compare co-educational and single-sex Korean high schools in terms of their facilities for each gender and organization of teachers for decision-making processes. The subjects of this study were 43 high schools in Seoul, Daegu, Kyonggi, Chonbuck, and Cheju areas. Data were collected by the questionnaire which includes questions on gender distribution of teachers for decision making processes, educational golas, school facilities for each gender, and others. The percentage of male teachers involving decision-making processes was higher than that of females teachers in both co-educational high schools and single-sex high schools. Further, this study revealed that girls were lacking for school facilities such as playground, toilets. This study suggested that teachers, educators, policy makers should aware of these facts in order to achieve gender equity and equality in high schools.
Trophic transfer of citrate, PVP coated silver nanomaterials, and silver ions in a paddy microcosm
Park, Hyung-Geun,Kim, Jung In,Chang, Kwang-Hyeon,Lee, Byoung-cheun,Eom, Ig-chun,Kim, Pilje,Nam, Dong-Ha,Yeo, Min-Kyeong Elsevier 2018 Environmental pollution Vol.235 No.-
<P><B>Abstract</B></P> <P>We used replicated paddy microcosm systems to estimate the tropic transfer of citrate-coated silver nanoparticles (AgNP citrate), polyvinylpyrrolidone (PVP)-coated AgNP (AgNP PVP), and silver ions (AgNO<SUB>3</SUB>) for 14 days under two exposure regimes (a single high-dose exposure; 60 μg L<SUP>−1</SUP> and a sequential low-dose exposure at 1 h, 4 days and 9 days; 20 μg L<SUP>−1</SUP> × 3 = 60 μg L<SUP>−1</SUP>). Most Ag ions from AgNO<SUB>3</SUB> had dispersed in the water and precipitated partly on the sediment, whereas the two Ag NPs rapidly coagulated and precipitated on the sediment. The bioconcentration factors (BCFs) of Ag from AgNPs and AgNO<SUB>3</SUB> in Chinese muddy loaches and biofilms were higher than those of river snails in both exposure conditions. These BCFs were more prominent for 14 days exposure (7.30 for Chinese muddy loach; 4.48 for biofilm) in the low-dose group than in the single high-dose group. Their retention of AgNPs and Ag ions differed between the two exposure conditions, and uptake and elimination kinetics of Ag significantly differed between AgNP citrate and AgNP PVP in the sequential low-dose exposure. Stable isotopes analyses indicated that the trophic levels between Chinese muddy loaches and biofilms and between river snails and biofilms were 2.37 and 2.27, respectively. The biomagnification factors (BMFs) of AgNPs and AgNO<SUB>3</SUB> between Chinese muddy loaches and biofilms were significantly higher than those between river snails and biofilms under both exposure settings. The BMFs of AgNP citrate and AgNO<SUB>3</SUB> between Chinese muddy loaches and biofilms were greater than those of AgNP PVP for 14 days in the single high-dose group, whereas the BMFs of AgNP PVP were greater than those of AgNP citrate and AgNO<SUB>3</SUB> in the sequential low-dose group. These microcosm data suggest that AgNPs have the potential to impact on ecological receptors and food chains.</P> <P><B>Highlights</B></P> <P> <UL> <LI> AgNPs and AgNO<SUB>3</SUB> underwent precipitation on the sediment through aggregation. </LI> <LI> Bioaccumulation varied from AgNP types, duration and frequency of their exposure. </LI> <LI> Microcosm data suggest that AgNPs have potential to impact on ecological receptors. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>