생마늘과 무취마늘의 화학성분의 비교

이종원,이미경,이형옥,이성계,도재호,김만욱 ( Jong Won Lee,Mi Kyung Lee,Hyung Ok Lee,Seong Kye Lee,Jae Ho Do Man Wook Kim ) 한국응용생명화학회 1997 Applied Biological Chemistry (Appl Biol Chem) Vol.40 No.5

The purpose of this study was to investigate the differences in proximate composition, free sugars, amino acids, fatty acids and Hunter color values between fresh and odorless garlic. The contents of crude fiber, crude fat and ash in odorless garlic were similar to those in fresh garlic. Sugars and crude protein decreased during manufacture of odorless garlic. Among the free sugars, sucrose, maltose and fructose decreased in odorless garlic, while the content of glucose increased. Total amino acid content decreased by about 30% in odorless garlic. Among the amino acids decreased arginine, isoleucine etc. The contents of linoleic acid, palmitic acid and oleic acid were higher than those of other fatty acids in fresh garlic and odorless garlic, but laruric acid was in little quantity. There were no significant differences in the Hunter L and b value between the fresh and odorless garlic, but value for greeness(-a) was lower in odorless garlic.

대한제과 기술학원 오병호 과장

이종원,Lee, Jong-Won 대한제과협회 1998 베이커리 Vol.7 No.-

제형파형강판 복부판의 탄성 연성전단좌굴 거동

이종원,길흥배,이학은,Yi, Jong Won,Gill, Heung Bae,Lee, Hak Eun 한국강구조학회 2005 한국강구조학회 논문집 Vol.17 No.6

파형강판은 파형 형상으로 가공된 강판으로 높은 면내, 면외 방향의 강성을 갖으며, 건물, 교량 등으로 적용도가 높아지고 있다. 파형강판을 플레이트 거더나 프리스트레스트 박스거더교의 복부판으로 적용하면, 파형강판의 아코디언 효과에 의해 플랜지가 휨응력을 복부판이 전단응력을 대부분 지지하는 효율적인 구조를 얻을 수 있다. 전단응력을 받는 파형 강판은 전체좌굴, 국부좌굴 및 연성좌굴에 의해 내하력을 상실할 수 있다. 세 가지 좌굴 모드 중 연성 좌굴에 대한 명확한 분석은 거의 이루어지지 않았고 보수적인 강도 예측을 위한 강도 감소식이 사용되고 있다. 따라서 본 연구에서는 연성 좌굴 거동에 미치는 기하학적인 인자들의 영향을 파악하기 위하여 유한요소해석법을 이용한 좌굴해석이 수행되었다. 해석 결과는 연성 좌굴은 패널의 세장비와 북부판 높이 두께비의 복합변수에 의존하는 것으로 나타났다. Corrugated webs have been used for composite prestressed concrete box girder bridges. Innovative steel plate girders using corrugated webs have been proposed. It has been found that analytical and experimental researches conducted to determine the strength of trapezoidally corrugated webs can fail with respect to three different buckling modes: local, global, and interactive shear buckling. Shear buckling capacity equations based on classical and orthotropic plate buckling theories have been proposed,but these equations show some differences. In this paper, geometric parameters that influence interactive shear buckling behavior with interaction effects are identified via extensive bifurcation buckling analysis using the finite element meth.

자갈축열층의 공기유동 및 축열성능

이종원,Lee, Jong Won 한국농공학회 2014 한국농공학회논문집 Vol.56 No.3

Fossil energy is needed for a whole year greenhouse cropping due to climate in South Korea. Because the most of the fossil energy resources is imported, it is necessary to develop technology to be able to reduce the energy cost in order to manage greenhouse profitably. The greenhouse commonly consume less amount of energy as compared to other industrial sectors. Replacement of fossil fuel with solar thermal storage, therefore, can be an economical as well as environmentally sustainable option for greenhouse heating. The fluid flow, heat storage and radiation characteristic of the gravel bed model were analyzed to provide basic data for design of the experimental solar heated greenhouse with underground thermal storage using gravel. The air flow velocity in the gravel storage bed was proven to be affected from the capacity of circulation fan and the circulation method and the positive pressure method was proven to be the best among the different air circulation methods. The initial air temperature of the thermal storage bed of 1.2 m $wide{\times}9$ m $long{\times}0.9$ m deep was $10^{\circ}C$. After the thermal storage bed is heated by air of the mean temperature $4^{\circ}C$ during 9 hours, the temperature has increased about $20.3^{\circ}C$ and the storage of heat was about 33,000 kcal. The important factors should be taken into consideration for design of the solar heated greenhouse with underground thermal storage using gravel are insulation of rock storage, amount of storing heat, inflow rate and direction of inlet and outlet duct.

피크타임에는 신나는 음악을!

이종원,Lee, Jong-Won 대한제과협회 1998 베이커리 Vol.9 No.-

우성냉동쇼케이스 조성호 과장

이종원,Lee, Jong-Won 대한제과협회 1997 베이커리 Vol.5 No.-

국방연구개발과 국가과학기술발전 연계방안

이종원,Lee, Jong-Won 재료연구소 1989 機械와 材料 Vol.1 No.1

자원순환형 재료를 사용한 섬유보강 시멘트 복합체(FRCCs)의 강도 및 CO₂ 저감에 관한 연구

이종원,김선우,박완신,장영일,윤현도,Lee, Jong-Won,Kim, Sun-Woo,Park, Wan-Shin,Jang, Young-Il,Yun, Hyun-Do 한국콘크리트학회 2017 콘크리트학회논문집 Vol.29 No.4

본 연구에서는 기존 PVA 섬유보강 시멘트 복합체(fiber-reinforced cementitious composites, FRCCs) 대비 성능유지 90% 이상을 목표로 하여 자원순환형 재료를 치환한 PVA FRCCs를 제조 및 개발하고자 하였다. 자원순환형 재료를 치환한 FRCCs의 압축, 휨 및 직접인장강도 시험을 통하여 역학적 특성을 분석하였으며, 이와 더불어 FRCCs의 제조단계에서 이산화탄소($CO_2$) 배출량을 국내 외 LCI 데이터베이스를 통하여 평가하였다. 실험을 통해 역학적 특성을 평가한 결과, 자원순환형 재료의 치환율이 증가함에 따라 압축, 휨 및 직접인장강도가 감소하는 경향으로 나타났다. $CO_2$ 배출량은 물결합재비(W/B)가 높고, 플라이 애시(FA)의 치환율이 높을수록 감소하는 것으로 나타났다. FA의 치환율이 증가함에 따라 결합재 지수($B_i$) 또한 증가하여 단위 강도(1 MPa)를 발휘하기 위한 결합재의 양이 보통 포틀랜드 시멘트보다 FA가 높은 것으로 나타났다. FRCCs의 성능을 유지하기 위해 설정된 목표치와 $CO_2$ 배출량을 동시에 고려해 볼 때 W/B 45%, FA 25% 및 순환 잔골재 25%가 치환된 배합이 가장 우수한 것으로 나타났다. The objective of this study is to develop sustainable PVA fiber-reinforced cementitious composites (FRCCs) that could exhibit comparable strength level to normal PVA FRCCs with no recycled materials. To evaluate mechanical properties of the FRCCs, compressive, flexural and direct tensile tests were conducted. In addition to the test, to calculate amount of carbon dioxide ($CO_2$) emission at the stage of manufacturing the FRCCs, life cycle inventory data base (LCI DB) were referenced from domestic and Japan. From the test results, the mechanical properties such as compressive, flexural and direct tensile strengths were decreased as the replacement ratio of recycled materials increased. And it was determined that the amount of $CO_2$ emission was reduced for the specimens with higher water-binder ratio (W/B) and replacement ratios. It was also found that binder intensity ($B_i$) value was higher as replacement ratio of fly ash (FA) increased. This result means that larger amount of FA is need to deliver one unit of a given performance indicator (1 MPa of strength) of FRCCs compared to that of ordinary portland cement (OPC). As a result, it could be concluded that FRCCs with W/B 45% replaced by FA 25% and recycled sand (RS) 25% is desirable for both target performance and $CO_2$ emission.

교모세포종 U-251MG, U-373MG세포주의 Cytokines처리에 의한 세포내 ICAM-1 발현

이종원,권정택,민병국,박승원,김영백,황성남,석종식,최덕영,Lee, Jong-Won,Kwon, Jung-Taek,Min, Byung-Kook,Park, Seung-Won,Kim, Young-Baeg,Hwang, Sung-Nam,Suk, Jong-Sik,Choi, Duck-Young 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.4

Objective : Despite advances in the understanding of tumor biology and the tumor immunology, there has been no effective treatment. The Intercellular adhesion molecule-1(ICAM-1) has been shown to be important in interaction involving cells of the immune system and to be upregulated in a number of cell culture systems by cytokines, including immune interferon($IFN-{\gamma}$) and tumor necrosis $factor-{\alpha}$($TNF-{\alpha}$). ICAM-1 has been identified as one of the ligands for lymphocyte function-associated antigen-1(LFA-1). The effectiveness of various cytokines to ICAM-1 induction on cultured human glioblastoma cell lines and potential efficacy of immunotherapy were studied. Method : Human glioblastoma cell lines, U-251 MG, U-373 MG were trypsinized and suspended at $1{\times}10^5cells/ml$ and grown on 8 well chamber slide, the cells were incubated in 0.3ml medium alone or medium containing $IFN-{\gamma}$(1000U/ml) or $TNF-{\alpha}$(250U/ml) or $IFN-{\gamma}$ plus $TNF-{\alpha}$ for 6, 12, 24, 48 and 72 hours. The coverslip were then removed and stained with a 1/30 dilution of anti-ICAM-1 antibody. Result : Surface antigen expression of ICAM-1 was increased by incubating glioblastoma cell lines with $IFN-{\gamma}$ and $TNF-{\alpha}$. Combined effect of $IFN-{\gamma}$ and $TNF-{\alpha}$ has induced more ICAM-1 expression on glioblastoma cell lines. Upregulation of ICAM-1 expression in an established glioblastoma cell line was of greater magnitude and more rapid following incubation with $IFN-{\gamma}$ plus $TNF-{\alpha}$. Surface antigen expression of ICAM-1 was increased for up to 48 hours after cytokine treatment on both cell lines(p<0.05). There was no difference on both cell lines(p>0.05). Conclusion : The results of the present study indicate that ICAM-1 expression in glioblastoma cell lines, U-251 MG and U-373 MG, are induced and enhanced after treatment with $IFN-{\gamma}$ and $TNF-{\alpha}$. Combined effect of $IFN-{\alpha}$ and $TNF-{\gamma}$ is stronger and more rapid than $IFN-{\gamma}$ or $TNF-{\alpha}$ alone.

전방 접근법으로 제거한 제2흉추 척삭종 - 증 례 보 고 -

이종원,김영백,박승원,황성남,최덕영,Lee, Jong-Won,Kim, Young-Baeg,Park, Seung-Won,Hwang, Sung-Nam,Choi, Duck-Young 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.4

Chordomas are rare central nervous system tumors that are found predominantly in the sacrococcygeal(50%) and basiosphenoidal region(35%). Most of the remainder are related to the vertebral bodies and only 1 to 2% of them are known to occur in the thoracic vertebrae. A 15-year-old girl was admitted because of paraparesis. Three months prior to admission, she underwent a lumbar laminectomy at other hospital for the treatment of herniated lumbar disc but paraparesis became rather aggravated after the operation. At admission, MRI showed a low signal T1WI, high signal T2WI mass compressing the cord at T2 vertebral body. The tumor was subtotally removed via costotransversectomy but as the tumor was proven to be a chordoma, a second stage operation via anterior route was followed. At second operation, T2 corpectomy and T1-T3 plate fixation with autogeneous ileac bone graft was performed. Shortly after the operation, preoperative paraparesis disappeared completely and no evidence of tumor recurrence was noticed both clinically and radiologically for next 2 years. Spine surgery at cervicothoracic junction may be technically demanding due to anatomical complexity and hindering large vessels. The authers reviewed this case with special emphasis on the surgical procedure in this region.