http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김영통,조원수,배원경,김일영,Kim, Yeong-Tong,Jo, Won-Su,Bae, Won-Gyeong,Kim, Il-Yeong 대한영상의학회 2002 대한영상의학회지 Vol.46 No.6
누두흉은 전흉벽에 생기는 가장 흔한 선천성 기형이다.누두흉은 흉골이 함몰되어 오목 가슴을 만든다.흉골 함몰의 정도와 부위,관련된 흉골의 경사짐과 늑골연골의 심한 볼록함으로 인해 함몰 혹은 돌출의 다양한 변형을 보인다.가장 흔하게 동반되는 질환은 Poland 증후군, Marfan 증후군,측만증 등이다. Pectus excavatum in which the sternum is depressed and the anterior chest wall is concave in shape, is the most common congenital deformity to affect this region of the body. Various deformities involving depression or protrusion are caused by the degree and location of the sternal depression, and associated deformities such as a tilted sternum and anterior convexity of costal cartilages may occur. The most common associated disorders are Poland syndrome, Marfan syndrome and scoliosis.
코발트 산화물 박막을 이용한 박막형 슈퍼 캐패시터의 제작 및 특성평가
김한기,임재홍,전은정,성태연,조원일,윤영수,Kim, Han-Gi,Im, Jae-Hong,Jeon, Eun-Jeong,Seong, Tae-Yeon,Jo, Won-Il,Yun, Yeong-Su 한국재료학회 2001 한국재료학회지 Vol.11 No.5
코발트 산화물 박막을 전극으로 하여 Pt/Ti/Si 기판위에 Co$_3$O$_4$/LiPON/Co$_3$O$_4$로 구성된 전고상의 박막형 슈퍼캐패시터를 제작하였다. 각각의 Co$_3$O$_4$박막은 반응성 dc 마그네트론 스퍼터를 이용하여 $O_2$/[Ar+O$_2$] 비를 증가 시키며 성장시켰고, 비정질 LiPON 고체전해질 박막은 순수한 질소분위기 하에서 rf 스퍼터링으로 성장시켰다. 비록 벌크 타입의 슈퍼캐패시터에 비해 낮은 전기용량 (5-25mF/$\textrm{cm}^2$-$\mu\textrm{m}$)을 가졌지만, Co$_3$O$_4$/LiPON/Co$_3$O$_4$ 구조로 제작된 전고상 박막형 슈퍼캐패시터는 벌크 타입과 비슷한 거동을 나타내었다 0-2V의 전압구간, 50$\mu\textrm{A}/\textrm{cm}^2$의 전류밀도에서 약 400사이클 까지 안정한 방전용량을 유지함을 관찰할 수 있었다 이러한 전고상 박막형 슈퍼캐패시터의 전기화학적 특성은 $O_2$/[Ar+O$_2$] 비에 의존하는데, 이러한 의존성을 구조적, 전기적 특성 및 표면특성을 분석하여 설명하였다. An all solid-state thin film supercapacitor (TFSC) with Co$_3$O$_4$/LiPON/Co$_3$O$_4$ structure was fabricated on Pt/Ti/Si substrate using Co$_3$O$_4$ thin film electrode. Each Co$_3$O$_4$ film was grown by reactive dc reactive magnetron sputtering with increasing $O_2$/[Ar+O$_2$] ratio. Amorphous LiPON electrolyte film was deposited on Co$_3$O$_4$/Pt/Ti/Si in pure nitrogen ambient by using reactive rf magnetron sputtering. The electrochemical behavior of the Co$_3$O$_4$/LiPON/Co$_3$O$_4$ multi-layer structures exhibits a behavior of a bulk-type supercapacitor, even though much lower capacity (from 5 to 25 mF/$\textrm{cm}^2$-$\mu\textrm{m}$) than that of the bulk one. It was found that the TFSC showed a fairly constant discharge capacity with a constant current of 50 $\mu\textrm{A}/\textrm{cm}^2$ at the cut-off voltage 0-2V during 400 cycles. It is shown that the electrochemical behavior of the Co$_3$O$_4$/LiPON/Co$_3$O$_4$ TFSC is dependent upon the sputtering gas ratio. The capacity dependency of electrode films on different gas ratios was explained by different structural, electrical, and surfacical properties.
조원기(Won Gi Jo),권병혁(Byung Hyuk Kwon),김박사(Park Sa Kim),김민성(Min Seong Kim),윤홍주(Hong Joo Yoon) 한국전자통신학회 2018 한국전자통신학회 논문지 Vol.13 No.2
고정점에서 고도별 바람을 산출할 수 있는 장비인 윈드프로파일러에 의해 관측된 바람 자료는 바람 산출 프로그램인 PCL1300을 활용하여 바람벡터로 제공된다. 현재 프로그램에 설정된 매개변수에 따른 운용의 결과는 3 km 이상 상층 대기 영역의 바람 산출이 어렵다는 것이다. 이는 매개변수에 대한 매우 엄격한 기준으로 인해 다량의 자료가 제거되기 때문이다. 본 연구에서는 바람벡터의 자료 수집 영역을 확장시키고 과소측정을 줄이기 위해 매개변수를 재설정하여 운용 방식을 개선하였다. 바람벡터의 수집률은 72.2%에서 92.2%로 증가하였음에도 풍속의 RMSE는 고도별 오차율 15% 미만에 해당하는 1.5 m/s - 3.1 m/s를 유지하였다. Wind data observed by wind profiler provide wind vectors with the altitudes using PCL1300, wind computation program. As a result of application with parameters set in program currently, it is difficult to compute wind vectors in the upper air over 3 km. This id because a very strict criterion for parameters removes large amounts of data. In this study, therefore, we improve the methods of application by resetting parameters to expand data collection area of wind vectors and reduce underestimation. Although the acquisition rate of the wind vector increased from 72.2% to 92.2%, the RMSE of the wind speed maintained 1.5 m/s - 3.1 m/s, which is less than 15% of the error rate at each altitude.
열처리 조건에 따른 PET의 Chain Conformation 변화의 새로운 해석
김갑진,김진사,조원호,Kim, Gap-Jin,Kim, Jin-Sa,Jo, Won-Ho 한국섬유공학회 1989 한국섬유공학회지 Vol.26 No.4
The presence of intermediate phase in the semicrystalline PET was suggested from the results of factor analysis and digital subtraction of IR spectra of PET samples annealed under various thermal conditions. The characteristic peak of intermediate phase was obtained around 1021cm-1, The peaks of pure amorphous and crystalline regions were found at 1017cm-1 and 1024cm-1, respectively. Thus the absorbance peak around 1020cm-1 was deconvoluted into three component peaks to investigate the change of each phase as functions of annealing temperature and time. In the intial crystallization step at low annealing temperature, the transformation of amorphous part into intermediate part was preferred to that of amorphous phase into crystalline one. On the other hand, intermediate phase as well as amorphous phase was tranformed into crystalline one in longer annealing time or at higher temperature. The densities of pure amorphous, intermediate, and crystalline phases were calculated as 1.2972 $\pm$0.0101, 1.3851 $\pm$0.0283, and 1.5036$\pm$0.0240g/㎤, respectively, from the correlation of band deconvolution and density data.
신동맥 결찰술 후 발생한 신증후군 범위의 단백뇨를 동반한 신혈관성 고혈압 ACE 억제제와 안지오텐신 2 1형 수용체 차단제 병합요법에 의한 성공적 치료
오세원 ( Se Won Oh ),김선철 ( Sun Chul Kim ),차진주 ( Jin Joo Cha ),김명규 ( Myung Gyu Kim ),우영석 ( Young Seok Woo ),부창수 ( Chang Su Boo ),조상경 ( Sang Kyung Jo ),조원용 ( Won Yong Cho ),김형규 ( Hyoung Kyu Kim ) 대한신장학회 2009 Kidney Research and Clinical Practice Vol.28 No.3
A 27-year-old woman presented with severe hypertension and nephrotic range proteinuria. She had a blunt renal trauma 4 weeks ago and was treated by the left main renal artery ligation. The plasma renin activity, angiotension II and aldosterone levels were very high and the abdominal angiography showed the occlusion of the left main renal artery with relatively preserved blood flow in upper pole of the left kidney. In captopril renal scan, relatively preserved perfusion in upper pole of left kidney was further compromised after captopril administration. The massive proteinuria and hypertension were improved after combination of ACE inhibitor and angiotensin II type 1 receptor blocker treatment.
DGEBA/phenol Novolac 에폭시 수지의 경화거동 및 열적 특성
정진욱,원종성,조원기,조호현,김의화,이승구,Jeong, Jin Wook,Won, Jong Sung,Jo, Won Gi,Cho, Ho Hyeon,Kim, Eui Hwa,Lee, Seung Goo 한국섬유공학회 2018 한국섬유공학회지 Vol.55 No.1
To enhance the viscosity and thermal resistance of DGEBA epoxy resin, a phenol novolac-type epoxy resin was added to a hot melt-type epoxy prepreg. The mixtures of DGEBA solid and liquid epoxy resin, and phenol novolac epoxy resin were prepared with different mixing ratios. The effect of the mixing ratio on the curing behavior, thermal stability and viscosity of the blended epoxy resin was investigated. The curing behavior did not vary significantly with the mixing ratio. The activation energy increased as the content of phenol novolac-type epoxy resin was increased up to 40 wt%. The thermal resistance and viscosity of the mixed epoxy resin increased significantly when the phenol novolac-type epoxy resin and solid epoxy resin occupied more than 20 wt%.
Polysilsesquioxane-b-Polycaprolactone의 합성과 특성
강두환 ( Doo Whan Kang ),김선택 ( Sun Teak Kim ),이병철 ( Byoung Chul Lee ),김영민 ( Young Min Kim ),조원호 ( Won Ho Jo ) 한국공업화학회 2003 공업화학 Vol.14 No.2
Phenyltrichlorosilane과 phenylenediamine을 preamination, 가수분해, 축합반응시켜 융해성이 우수한 ladder형 polyphenylsilsesquioxane (PPSQ)을 제조하였다. PPSQ에 분자량이 조절된 α, ω-hydroxyl polycaprolactone (PCL) prepolymer를 공중합시켜 분자구조가 제어된 polysilsesquioxane-b-polycaprolactone (PPSQ-b-PCL) 공중합체를 제조하였다. PPSQ-b-PCL 공중합체를 ITO glass 위에 코오팅하여 박막을 제조하고 고온에서 PCL segment를 소결시켜 기공의 분산성이 우수한 PPSQ의 박막을 제조하여 그 특성을 측정하였다. 이들의 구조 및 열적 특성은 FT-IR, NMR 및 TGA로 확인하였으며 이들 박막의 모폴로지 및 기공의 분산성은 SEM과 AFM으로 측정하였다. 또한 전기적 특성은 MIM (Metal. Insulator/Metal)방식으로 유전율을 측정하였다. Polyphenylsilsesquioxane-b-polycaprolactone (PPSQ-b-PCL) copolymer, to apply as an interlayer dielectric material, was synthesized from condensation polymerization of α, ω-hydroxyl polycaprolactone (PCL) prepolymer and polyphenylsilsesquioxan (PPSQ). PPSQ was prepared from condensation polymerization of phenyltrichlorosilane and phenylenediamine. PPSQ-b-PCL copolymer was spin-coated on ITO glass and cured in an electric fumace that was equipped with N_2 injection port. By curing of the coated material, sphere-shaped pores was obtained by sintering the PCL segment. The structures of PPSQ-b-PCL, were confirmed by FT-IR and NMR. Their thermal properties were measured by TGA. Morphology, topography, and dielectric constant, according to the contents of PCL in film, were measured by SEM, AFM, and impedance analyzer.
고도별 UHF 원격 관측을 이용한 혼합층 발달 사례 분석
김상진(Sang Jin Kim),권병혁(Byung Hyuk Kwon),김광호(Kwang Ho Kim),김박사(Park Sa Kim),김민성(Min Seong Kim),조원기(Won Gi Jo),윤홍주(Hong Joo Yoon) 한국전자통신학회 2018 한국전자통신학회 논문지 Vol.13 No.1
GPS 라디오존데는 정밀 기상 센서와 GPS 위성 네트워크에서 생성된 데이터를 사용하여 풍선이 터질 때까지 상승하면서 종관 규모의 연직 관측을 수행하도록 설계되었다. GPS 라디오존데는 정밀한 온도, 습도 및 기압 센서를 내장하고 있다. GPS 라디오존데를 사용하여 2016년 3월 9일 18시부터 2016년 3월 12일 06시까지 서해의 세 섬에서 대기경계층을 집중관측하였고, 야간 안정층이 억제되고 오히려 야간 혼합층이 발달되는 사례를 조사하였다. 야간 혼합층은 3월 9일에 지표 열플럭스에 의해 발달된 반면에 3월 10일 혼합층 높이가 가장 높았던 21시에는 시어 생성이 가장 높았다. 난류운동에너지를 생산하는 수평 바람의 연직 층밀림과 표면열플럭스가 야간에도 혼합층을 성장시키는 데 중요한 역할을 하였다. The GPS radiosonde is designed to conduct a full synoptic sounding to balloon burst using data generated from precision meteorological sensors and the GPS satellite network. The GPS radiosonde include proven, accurate temperature, humidity and capacitance aneroid pressure sensors. The atmospheric boundary layer was intensively observed in three islands of the west sea from 18 LST on March 9, 2016 to 06 LST on March 12, 2016. We investigated the restriction of nocturnal stable layer and rather the development of the mixed layer at night. On March 9, nocturnal mixed layer was developed by buoyancy heat flux. On the other hand, on March 10, the shear production was higher especially at 21 LST when the mixed layer height was the highest during the intensive observation period. The wind shear and the surface heat flux which produce the turbulent kinetic energy played an important role to grow the mixed layer even at night.