http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
측두하악장애 환자에서 과두크기와 관절융기의 후방경사에 관한연구
박원희,이영수,우순섭,심광섭 大韓顎顔面成形再建外科學會 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.1
The purpose of this study was to investigate the interrelationship between temporomandibular joint disorders, and the condyle size and angle of the posterior slope of the articular eminence. The subjects used in this study were 100 patients with temporomandibular joint disorders and 100 volunteers with normal temporomandibular joints. All the patients and the volunteers were subjected to take panoramic and temporomandibular radiographs for the morphologic evaluation. This films were traced, measured, and analyzed. The data were processed with SPSS/PC+package for statistical analysis. The obtained results were as follows : 1. The posterior slope of the articular eminence in the group of temporomandibular joint disorders was larger than that in the normal group (p<0.05). The mean articular eminence angle was 31.6。±6.3 in the group of temporomandibular joint disorder, and 29.9。±8.4 in the normal group. 2. There were no statistically significant differences in the discrepancies of the left and right articular eminence angular measurements between the group (p>0.05). 3. There were no statistically significant differences in the condylar ratio between the groups (p>0.05). 4. There were no statistically significant differences in the discrepancies of the left and right ramus length measurements between the groups (p>0.05). 5. The relative size of condyle to fossa in the group of temporomandibular disorders was smaller than that in the normal group(p<0.05).
노광춘,이규섭,박영필 연세대학교 산업기술연구소 1984 논문집 Vol.16 No.1
Subharmonic vibration of order 1/2 of a simply supported uniform beam subjected to initial tention is studied for a concentrated lateral harmonic excitation force. Theoretical analysis is carried out by assumming the deflection as a superposition of linear eigenfunctions. Harmonic balance method is used for the steady state solution. The steady state solutions are obtained by using Newton-Raphson method. Experiments are carried out and show good agreement with the theoretical results.
침 시술로 발생한 Non-O1, Non-O139 Vibrio cholerae에 의한 패혈증
임태섭,지아영,이중희,장수연,김인수,김영주,김범경,김승업,박준용,안상훈,한광협,김도영 Ewha Womans University School of Medicine 2013 EMJ (Ewha medical journal) Vol.36 No.S
Vibrio cholerae is mainly known to cause gastrointestinal infection after seawater exposure or raw seafood intake. It is rarely reported to cause cellulitis or sepsis, but threre has been no known case after acupuncture. Herein, We report a 56-year-old cirrhotic patient of non-O1, non-O139 Vibrio cholerae septicemia caused by cellulitis of both lower extremities after acupuncture.
생활하수슬러지가 토양 화학성 및 장미의 생육에 미치는 영향
최정,이동훈,박만,최충렬,김광섭 한국환경농학회 2002 한국환경농학회지 Vol.21 No.2
생활하수슬러지를 장미 재배지에 토양 개량제로서 시용량을 달리하여 첨가하고 장미의 생육상, 토양 및 식물체중 중금속의 함량에 미치는 영향을 조사하였다. 장미 재배지에 하수슬러지를 사용하면 시용량이 증가함에 따라 신장과 비대생장이 증가했으며 주당 꽃송이도 많아 생육이 양호한 것으로 나타났다. 토양 중 중금속 함량은 시용량의 증가에 따라 일정한 경향은 없었으며 식물체에 의한 대부분의 무기성부 흡수량은 하수 슬러지의 시용량에 따라 증가하는 것으로 나타났다. 결과적으로 생활 하수 슬러지는 유해물질의 농도가 낮으면 경작지에 처리하여도 무관할 것으로 판단된다. This study was conducted to find out the effect of municipal sewage sludge on the growth and heavy metal content of rose and soil chemical properties. Municipal sewage sludge was applied to soil at rate of 0, 3, 5, 10 and 15 ton/10a, the plant height, flower number and stem size of rose were found to be increase in the treatments of sewage sludge. Contents of mineral nutrients in rose stem were determined to be higher at municipal sewage sludge application plots than those of no application. But, there were not any significant increases of heavy metal contents in soil and rose stem with the sludge applications. From the results of this study, it is apparent that the application of municipal sewage sludge would not increase available heavy metals in soil.
실리콘 웨이퍼 공정용 알루미나 정전척의 제작과 특성에 관한 연구
천희곤,조동율,이영섭,박용균,최성호,정광진,Serguei Spoutai 울산대학교 기계부품 및 소재 특성평가연구센터 1999 연구보고서 Vol.1999 No.-
정전척의 유전체 물질로 열전도도와 유전특성 그리고 기계적 특성이 우수한 알루미나에 TiO₂첨가하여 유전체의 비저항을 변화시켜서 정전척(electrostatic chuck)에서 발생하는 정전력인 쿨롱힘(coulomb force)과 존슨-라벡힘(Johnsen-Fahbeck firce_의 영향을 규명하려 하였다. 그리고 비저항, 인가전압, 온도, 습도가 정전력에 어떠한 영향을 주는지 고찰하였으며, 인가전압에 따른 응답 특성에 관하여 고찰하였다. Alumina electrostatic chucks for silicon wafer process with wide range of electrical resistivity were fabricated by controlling the amount of TiO₂ addition (0 wt%, 1.3 wt%, 2 wt%, 2.8 wt%). The dependence of electrostatic force on applied voltage, temperature and humidity was investigated. In addition, response characteristics on applied voltage and relationship between electrical resistivity and electrostatic force characteristics such as Coulomb force and Johnsen-Rahbeck force were discussed
이동훈,최충렬,김광섭,김평열,서정우,박만 경북대학교 농업과학기술연구소 2006 慶北大農學誌 Vol.24 No.-
군위군 오이재배지역을 정밀토양도를 이용하며 토양특성을 조사하구 군위군 노지 및 시설오이 재배지토양의 물리화학적 특성을 조사하여, 연작과 관행적인 토양관리로 인하여 저하된 토양의 이화학적 특성을 오이재배에 적합한 토양으로 개량하기 위한 기초자료로 이용하고자 토양조사를 실시하였다. 조사지역은 군위군 군위읍 외랑리 오이재배단지로서 주요토양통은 토양토에 나타난 단북통과 신정들이 가장 넓게 분포하였으며, 점토함량은 시설재배지내 토양의 경우 양토이었으며, 시설재배지의 외부 토양의 경우 23.8%로 높게 나타났다. 오이 재배지 토양의 화학적 특성 결과에 대한 오이재배지 토양의 적정범위와비교하여 보면 일반적인 화학적 성질에서 서는 유효인산의 함량이 적정범위보다 높은 것을 알 수 있으며, 치환성 양이온 함량은 시설재배지의 외부토양은 적정범위에 속하나 시설재배지 내부토양은 모두 높은 것으로 나타났으며, 최상부 토양은 매우 높으나 l0cm이하는 깊이에 따라 뚜렷한 차이는 없었다. 오이 재배지 토양 중 중금속 함량은 모두 기준치보다 높게 나타났는데, 구리의 함량이 시설재배지가 노지재배지보다 높게 나타났다. The soils of plastic film houses in which intensive cultivation takes place suffer from the serious problems such as severe salinity and accumulation of heavy metals etc. The objective of this research was to examine the change in soil properties with repeated cucumber cultivation under plastic film house at Gunwi-Gun area. The soils were classified mainly to Danbuk and SinJung series. Clay content is lower in the soils of plastic film house than in the field soil. Available P205 and exchangeable cations were accumulated at the level higher than the optimum range. The content of extractable heavy metals were higher in the soils of plastic film house than in those of the field. For optimum yield, much attention should be paied to the management of soils by the pre-soil survey.
Park, Seung-Hyun,Shin, Jung-Ah,Park, Hyun-Hee,Yi, Gwang-Yong,Chung, Kwang-Jae,Park, Hae-Dong,Kim, Kab-Bae,Lee, In-Seop Occupational Safety and Health Research Institute 2011 Safety and health at work Vol.2 No.3
Objectives: The purpose of this study was to measure the concentration of volatile organic compound (VOC)s originated from the chemicals used and/or derived from the original parental chemicals in the photolithography processes of semiconductor manufacturing factories. Methods: A total of four photolithography processes in 4 Fabs at three different semiconductor manufacturing factories in Korea were selected for this study. This study investigated the types of chemicals used and generated during the photolithography process of each Fab, and the concentration levels of VOCs for each Fab. Results: A variety of organic compounds such as ketone, alcohol, and acetate compounds as well as aromatic compounds were used as solvents and developing agents in the processes. Also, the generation of by-products, such as toluene and phenol, was identified through a thermal decomposition experiment performed on a photoresist. The VOC concentration levels in the processes were lower than 5% of the threshold limit value (TLV)s. However, the air contaminated with chemical substances generated during the processes was re-circulated through the ventilation system, thereby affecting the airborne VOC concentrations in the photolithography processes. Conclusion: Tens of organic compounds were being used in the photolithography processes, though the types of chemical used varied with the factory. Also, by-products, such as aromatic compounds, could be generated during photoresist patterning by exposure to light. Although the airborne VOC concentrations resulting from the processes were lower than 5% of the TLVs, employees still could be exposed directly or indirectly to various types of VOCs.
Park, Garam,Oh, In-Hwan,Park, J.M. Sungil,Park, Seong-Hun,Hong, Chang Seop,Lee, Kwang-Sei Elsevier 2018 PHYSICA B-CONDENSED MATTER - Vol.551 No.-
<P><B>Abstract</B></P> <P>In previous work, the inorganic-organic hybrid perovskite system (C<SUB>6</SUB>H<SUB>5</SUB>CH<SUB>2</SUB>CH<SUB>2</SUB>NH<SUB>3</SUB>)<SUB>2</SUB>MnCl<SUB>4</SUB> exhibit well-isolated 2D Heisenberg antiferromagnetc properties, including a canted antiferromagnet below T<SUB>N</SUB> = 44.3 K. This study looked at the antiferromagnetic spin structure of the titled compound using single-crystal neutron diffraction. At 43 K, a new forbidden (−1 0 0) peak was observed and this peak showed a clear temperature dependence. Additionally, non-integer forbidden peaks were found. It was assumed that the magnetic cell was equal to the chemical cell for Mn-PEA system (<I>k</I> = 0). No magnetic peaks were observed along the c-axis. From this data it can be assumed that the spin is parallel to the <I>c</I>-axis. This result coincides with previous magnetic measurement studies. According to Turov, in the case of an antiferromagnetic structure with weak ferromagnetism, the magnetic cell should be equal to the chemical cell. Our neutron diffraction measurement and former study strongly support the hypothesis of Turov.</P>