http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
하종한,Ha, Jong-Han 한국주거학회 1992 한국주거학회 논문집 Vol.3 No.1
This study is a trial to syustematize the types of Minga(house of the lower class) that is distributed in the whole Korean penninsula. It is thought that, it can be systematised by using the method of five step' assortment shich is able to divide the types of Minga. Five steps are as follows: 1. The system of appearance and evolution of floor 2. The system of forms 3. Areal distribution of forms 4. State of gathering of living spaces 5. Variety of forms
하종한(Jong-Han Ha),장은정(Eun-Jung Jang),권용재(Yong-Chai Kwon) 한국유화학회 2015 한국응용과학기술학회지 Vol.32 No.3
최근 정부는 신재생에너지 연료 혼합 의무화 제도(RFS)와 신재생에너지 공급 의무화제도(RPS)를 적극 추진하고 있어 신재생에너지 연료의 중요성은 그 어느 때보다도 부각되고 있으며 적극적인 연구가 필요한 때이다. 이의 일환으로 발전용 바이오중유 시범보급사업과 관련 연구가 활발히 진행중에 있다. 본 연구에서는 바이오중유의 성능평가기준(안) 마련을 위해 중유와 바이오중유의 연료품질특성 및 산업용 보일러에서 연소 후 배출되는 먼지, 배출가스의 양을 비교 연구하였다. 연구결과 바이오 중유를 사용할 경우 먼지와 황산화물 등 유해배출가스가 현저히 저감 되는 것이 밝혀졌다. Recently, the government is actively promoting the RFS(Renewable Fuel Standards) and RPS(Renewable Portfolio Standards). Therefore, the importance of renewable energy fuel is being highlighted more than ever. Now is the time required active research in Korea. Since power bio-fuel oil demonstration project is underway dissemination to meet RPS quota. In this study, we investigated emission performance to make the performance standard draft of bio-fuel oil. In addition, the quality properties of the fuel oil and bio-oil, and after combustion in industrial boilers and compared the amount of exhaust gas. It was reduced emissions of bio-oil in industrial boilers due to bio-fuel properties as compare with fuel oil.
하종용(Ha, Jong-Yong),김용한(Kim, Yong-Han),양보석(Yang, Bo-Suk),삼하신(Morishita, Shin),안경관(Ahn, Kyoung-Kwan),안영공(Ahn, Young-Kong) 한국소음진동공학회 2005 한국소음진동공학회 논문집 Vol.15 No.11
The paper presents the identification of dynamic property of a rotor system with a squeeze film damper (SFD) using magnetic fluid. An electromagnet Is installed in the inner damper of the SFD. The magnetic fluid is well known as a functional fluid. Its rheological property can be changed by controlling the applied current to the fluid and the fluid can be used as lubricant. Basically, the proposed SFD has the characteristics of a conventional SFD without an applied current, while the damping and stiffness Properties change according to the variation of the applied electric current. Therefore, when the applied current is changed, the whirling vibration of the rotor system can be effectively reduced. The clustering-based hybrid evolutionary algorithm (CHEA) is used to identify linear stiffness and damping coefficients of the SFD based on measured unbalance responses.
이세한(Se Han Lee),이정표(Jung Pyo Lee),김세중(Se Joong Kim),김성균(Seong Gyun Kim),김연수(Yon Su Kim),하종원(Jong Won Ha),안규리(Curie Ahn),김승협(Seung Hyup Kim),한진석(Jin Suk Han),김성권(Suhng Gwon Kim),이현순(Hyun Soon Lee),이정상( 대한신장학회 2002 Kidney Research and Clinical Practice Vol.21 No.5
Renal lymphangiectasia is a rare cystic kidney disorder. This disorder has been termed renal lymphangioma, renal lymphangiomatosis, pararenal lymphatic cyst. We report on a 32-year-old man admitted with complaints of abdominal discomfort, in whom unilateral renal lymphangiectasia with renal vein thrombosis was diagnosed. Abdominal computed tomography revealed left perirenal fluid collection with multiloculation. Left renal vein was completely obliterated due to thrombosis and inferior vena cava (IVC) was partially obliterated. Perirenal fluid collection and renal vein thrombosis were treated initially with percutaneous drainage and anticoagulation therapy. The biochemical features of the drained fluid were compatible with lymphatic fluid. Since there was no decrease in the amount of daily drainage, left nephrectomy and IVC thrombectomy was performed on the 34th day of hospitalization. Left kidney was enlarged (15×10×18 ㎝, 750 g) and composed of numerous smooth, thin-walled cysts. Pathologic diagnosis was renal lymphangiectasia.
Dunaliella tertiolecta LB999 유래 바이오디젤의 산화특성 연구
이돈민,이미은,하종한,류영진,최창용,심상혁,임상민,이철균,이봉희,Lee, Don-Min,Lee, Mi-Eun,Ha, Jong-Han,Ryu, Jin-Young,Choi, Chang-Yong,Shim, Sang-Hyuk,Lim, Sang-Min,Lee, Choul-Gyun,Lee, Bong-Hee 한국해양바이오학회 2015 한국해양바이오학회지 Vol.7 No.1
Bio diesel has advantages to reduce GHG(Greenhouse Gas) compare with the fossil fuel by using oil comes from plant/animal sources and even waste such as used cook oil. The diversity of energy feeds brings the positive effects to secure the national energy mix. In this circumstance, micro-algae is one of the prospective source, though some technical barriers. We analyzed the bio diesel which was derived from Dunaliella tertiolecta LB999 through the BD100 quality specifications designated by the law. From that result, it is revealed that the oxidation stability is one of the properties to be improved. In order to find the reason for low oxidation stability, we analyzed the oxidation tendency of each FAME components through some methods(EN 14111, EN14112, EN16091). In this study, we could find the higher double bond FAME portion, the more oxidative property(C18:1<C18:2${\ll}C18:3$) in bio diesel and main unsaturated FAME group is acted as the key component deciding the bio diesel's oxidation stability. It is proved experimentally that C18:3 FAME are oxidized easily under the modified accelerated oxidation test. We also figure out low molecular weight hydrocarbon and FAME were founded as a result of thermal degradation. Some alcohol and aldehydes were also made by FAME oxidation. In conclusion, it is necessary to find the way to improve the micro-algal bio diesel's oxidation stability.
석유제품의 온도 변화에 따른 밀도 및 부피 변화 특성 연구
황인하(In-ha Hwang),도진우(Jin-woo Doe),강형규(Hyung-kyu Kang),성상래(Sang-rae Sung),하종한(Jong-han Ha),나병기(Byung-ki Na) 한국유화학회 2017 한국응용과학기술학회지 Vol.34 No.4
석유제품은 다양한 형태의 탄화수소화합물로 구성되어진 화합물로, 다른 종류의 액체류와 마찬 가지로 온도변화에 따른 밀도와 부피의 변화가 발생한다. 액상에서 석유제품의 밀도를 측정하는 방법은 분별 증류된 각 석유제품에 대해 주로 얻어진 실험 데이터를 기반으로 한다. 본 연구에서는 등유와 자동차용 경유의 온도변화에 따른 밀도와 부피변화를 실제 측정하여 온도변화에 따른 변화추이를 분석하고, 국제규 격인 ASTM에서 제시하는 밀도부피 환산표를 이용한 환산값을 계산하고 두 값을 비교분석하였다. 또한, 국내 계량 관련법에서 규정하고 있는 온도변화에 대한 기준과 실측값과의 상호 비교를 통해 차이점을 분석 하였다. Petroleum products are composed of various types of hydrocarbon compounds. Like other types of liquids, they presented the variation of density and volume according to temperature change. The method of measuring the density of petroleum products in a liquid phase is based on experimental data obtained mainly for each fractionally distilled petroleum product. In this study, the density and volume changes of kerosene and automotive diesel according to temperature change were measured and the property of change were analyzed. The conversion values were calculated using the density volume conversion table proposed by international standard ASTM. In addition, we analyzed the differences between the reference values and the measured values for the temperature changes specified in the domestic metering law.
고분자 절연막과 계면을 이루는 도너-억셉터형 반도체성 고분자 박막의 전기적 특성
이주한 ( Ju-han Lee ),김도연 ( Doyeon Kim ),하종운 ( Jong-woon Ha ),윤민호 ( Minho Yoon ),이지열 ( Jiyoul Lee ),황도훈 ( Do-hoon Hwang ) 한국화상학회 2021 한국화상학회지 Vol.27 No.2
본 연구에서는 새로 설계한 고분자 절연체 위에 전자 주개(Donor)-받개(Acceptor) 기반의 반도체성 공중합체인 Cyclopentadithiophene-alt-benzothiadiazole (CDT-BTZ)를 활성 반도체층으로 형성하여 제작한 고분자 반도체 전계효과 트랜지스터의 전기적 특성을 살펴보았다. 이 연구에서 제시하는 고분자 절연체 박막은 내열성과 전기절연성이 우수한 포스파젠과 멜리민 구조가 가교된 형태를 가지기 때문에 0.006 nm의 매우 평탄한 RMS 표면 거칠기를 가졌으며, 4.5 MV/cm 이상의 매우 우수한 절연강도와 1.55의 다소 낮은 유전 상수를 가진 것으로 측정되었다. 그리고, 고분자 절연막과 계면을 이루는 CDT-BTZ D-A 타입 반도체성 공중합체 박막은 2.0 x 10<sup>-3</sup> ㎠/Vs의 선형영역 이동도와 1.0 x 10<sup>-3</sup> ㎠/Vs의 포화영역 이동도를 갖는 것으로 측정되었다. 이를 통해, 고분자 절연체 위에 형성된 CDT-BTZ 고분자 반도체 박막은 유연 전자회로의 스위칭 소자로 쓰이기에 충분한 잠재성이 있다고 여겨진다. In this study, the electrical properties of a polymer semiconductor field-effect transistor (PFET), where a Cyclopentadithiophene-alt-benzothiadiazole (CDT-BTZ) based electron donor-acceptor (D-A) type semiconducting copolymer layer on newly-designed polymer insulating films used as an active semiconductor layer, were investigated. The self-crosslinked polymer insulator thin-film had a very flat surface with an RMS roughness of 0.006 nm, a good dielectric strength of 4.5 MV/cm and a dielectric constant of 1.55. The CDT-BTZ based D-A type semiconducting copolymer film interfacing with the self-crosslinked polymer insulating layer was measured to have a linear region mobility of 2.0 x 10<sup>-3</sup> ㎠/Vs and a saturation region mobility of 1.0 x 10<sup>-3</sup> ㎠/Vs. Thus, the CDT-BTZ based D-A type semiconducting copolymer film formed on the new polymer insulating layer is believed to have sufficient potential to be used as a switching device for flexible electronic circuits.