• Title/Summary/Keyword: Lee Sam

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Changes in ${\beta}-Cryptoxanthin$ Content of Setoka Fruits Ripened in Greenhouse Cultivation

  • Kim, Yu-Wang;Kim, Ji-Oh;Baek, Dong-Chul;Song, Kwan-Jeong;Kim, In-Jung;Lee, Sam-Pin;Kim, Chan-Shick
    • Food Science and Biotechnology
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    • v.16 no.2
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    • pp.306-310
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    • 2007
  • Setoka (Tangor Norin No.8) is a superior tangor cultivar cultivated in a greenhouse on Jeju Island, and its ${\beta}-cryptoxanthi$n content was determined during the ripening season (September 2005 to March 2006). The ${\beta}-cryptoxanthi$n content of the peel of Setoka fruits was higher than that of the flesh. Also, the ${\beta}-cryptoxanthi$n content in both peel and flesh gradually increased through the ripening season from the beginning of pigmentation, and then decreased slightly late in the ripening season. The ${\beta}-cryptoxanthi$n content in the peel of Setoka fruits varied throughout the season with values of 0.02 (Sep), 0.67 (Nov.), 2.27 (Dec.), 2.88 (Jan.), 2.27 (Feb.), and 2.13 mg% (Mar.). The ${\beta}-cryptoxanthi$n content in Setoka fruit flesh increased throughout the ripening season with values of 0.05 (Sep.), 0.22 (Nov.), 0.57 (Dec.), 0.80 (Jan.), and 0.91 mg% (Feb).

Relationship between the Expression of VEGF, HIF-$1{\alpha}$, E-cadherin, p53 and Stage in Papillary Thyroid Carcinoma (유두상(乳頭像) 갑상선암(甲狀腺癌)에서 VEGF, HIF-$1{\alpha}$, E-cadherin, p53의 발현(發現)과 병기(病期)의 관련성(關聯性) 연구(硏究))

  • Kim, Jong-Sam;Na, Baeg-Ju;Lee, Moo-Sik;Kim, Chul-Woung;Jeong, Gye-Rim
    • Proceedings of the KAIS Fall Conference
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    • 2009.05a
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    • pp.335-338
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    • 2009
  • 본 연구에서는 HIF-$1{\alpha}$의 과발현은 VEGF의 발현과 유의한 상관 관계가 있음을 보여 주었다. 그리고, HIF-$1{\alpha}$의 과발현과 E-cadherin의 발현 사이에도 연관성은 있었지만 통계적인 유의성은 없었다. 종양의 병기와 VEGF, HIF-$1{\alpha}$, E-cadherin, p53의 상관성을 살펴본 결과 E-cadherin에서만 유의성이 관찰되었다. 갑상샘 유두암종에서 HIF-$1{\alpha}$의 발현이 종양의 증식과 관련된 단백, 특히 맥관형성과 관련된 단백인 VEGF의 발현, p53의 축적 및 E-cadherin의 발현소실과의 관계, 그리고 병리학적 표지자와의 관련성을 조사하고, 갑상샘 유두암종 환자의 수술후 예후와의 관계를 알고자 하였다.

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Enhancement of Seed Germination by Aging, Cold-stratification, and Light Quality during Desiccation in Burcucumber (Sicyos Angulatus L.)

  • Kang, Jin-Ho;Jeon, Byong-Sam;Lee, Sang-Woo;Choe, Zhin-Ryong;Shim, Sang-In
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.48 no.1
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    • pp.13-16
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    • 2003
  • Seeds of burcucumber were treated with accelerated aging, cold-stratification, and light quality illuminated during desiccation to enhance their germination and seedling emergence. The germination was increased by aging and cold-stratification although the latter treatment showed greater effectiveness than the former one. In the combined treatment of aging 6 days at $45^{\circ}C$ and cold-stratification, the germination was promoted under longer period of cold-stratification to reach nearly 100% in 3 week cold-stratification on the ninth day from sowing. In the sequentially combined treatment of aging, cold-stratification, and light quality during 24 hour desiccation at $35^{\circ}C$, no-stratified seeds showed the highest rate in red light treatment but the lowest in far-red light. This implies that the phytochrome action run during the desiccation of imbibed seeds. The red light exposure during drying for the cold-stratified seeds after aging accelerated the germination even more than the dark treatment and germinated 100% on the next day of sowing. It is concluded that the sequential treatment of aging, cold-stratification, and red light illumination during desiccation can highly promote percentage and speed of burcucumber seed germination.

Reduction Cleaning and Thermomigration Effects on Micro Polyester SUEDE (극세 폴리에스테르 스웨드의 환원세정과 열이행의 영향)

  • Choi, Kyung-Yeon;Han, Sam-Sook;Lee, Mun-Cheul
    • Textile Coloration and Finishing
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    • v.21 no.6
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    • pp.12-21
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    • 2009
  • The dyeing property of direct-spinning type and seaisland type 0.2D micro polyester nonwoven fabrics was characterized by three disperse dyes (Dorosperse Red KFFB, Blue KGBR, Yellow KRL) at $120^{\circ}C$ and $130^{\circ}C$. Before and after reduction cleaning, dyeing fastness was evaluated and the thermomigaration after heat setting at $180^{\circ}C$ for 60 min were also evaluated. Direct-spinning type fabric showed better dyeing property, wash fastness, and light fastness, but worse rub fastness than seaisland type fabric. The dyeing property and fastness of direct-spinning type fabric increased at higher dyeing temperature, whereas seaisland type fabric exhibited lower dyeing fastness and the increase of thermomigration at higher dyeing temperature. Non-fixed dye in fiber surface was removed by reduction cleaning process, then dyeing fastness was improved and thermomigration decreased. The higher dye uptake of direct-spinning type non-woven fabric caused the increase of dye molecule migration from fiber internal to fiber surface, so this fabric showed larger thermomigration than seaisland type non-woven fabric.

Experimental Study for Installation Damage Assessment of Geogrid (지오그리드의 시공중 손상 평가를 위한 실험적 연구)

  • Cho, Sam-Deok;Lee, Kwang-Wu;Oh, Se-Yong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.8 no.1
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    • pp.27-36
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    • 2005
  • Geosynthetic reinforcements may be damaged during its installation in the filed. The installation damage mainly depends on two factors such as materials used and construction activities. This paper describes the results of a series of field tests, which are conducted to assess the installation damage of geogrid according to different maximum grain sizes of fills (40, 60, and 80 mm). These tests are done in three sites for twelve different kinds of geogrids. After field tests, the changes in tensile strength of the geogrids is determined from wide width tensile tests using both damaged and undamaged specimens. In the results of tests, tensile strength of the relatively flexible geogrids after field installation tests was decreased about from 20% to 40% according to the increment of the maximum grain size. On the other hand, for the relatively stiff geogrids, the loss of the tensile strength after site installation was examined below 5.2% independent of the maximum grain size of the soils. The results of this study show that the installation damage significantly depends on the stiffness of geogrid and is more obvious to a flexible geogrid and a fill material having higher maximum grain size.

Development of Layering System for Military Jacket based on the Factors of Comfort and Usability (쾌적성과 사용성에 기반한 군복의 레이어링 시스템 개발)

  • Park, Seon-Hyeong;Jang, Han-Na;Jeong, Gi-Sam;Chae, Jae-Uk;Kim, Hyeon-Jun;Lee, Ju-Hyeon
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2008.10a
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    • pp.106-109
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    • 2008
  • The aim of this study is to develop a model of layering system for future soldier system. Future soldier has been supposed to carry various digital devices embedded into the combat uniform. The combat uniform must be developed to be fit to soldier's body and movement, and can be felt comfortable to soldier. The Uniform must be studied in ergonomic and physiological component because it is different from the present one. It has many devices inside, so there are some unknown barriers to set the devices on to the body. For making the ergonomic aspect of future combat suits clear, the movement of the body was researched. The size of arms(3 parts), torsos(4 parts), and legs(3 parts) of people were measured by movement. Many dots were drawn on the testees' bodies every 3cm. Each time they made compulsory poses, the distances between dots be measured and analyzed. For making the physiological aspect of future combat suits clear, the thermo-map and sweating map of body were made. The 3 maps - movement, thermo and sweating- were overlapped. The devices for future soldier were arranged on the overlapped map considering relations between devices. The final layering system developed on the arrangement of devices.

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A Clinical Review of Primary Skin Cancer Arising from Head and Neck (두경부에 발생한 원발성 피부암의 임상적 고찰)

  • Lee Hyouk-Jin;Oh Sung-Soo;Park Yoon-Kyu;Chung Eul-Sam
    • Korean Journal of Head & Neck Oncology
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    • v.10 no.2
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    • pp.185-191
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    • 1994
  • Authors reviewed 73 cases of primary skin cancer arising from head and neck, including comparative clinical data of 63 cases of squamous cell carcinoma and basal cell carcinoma retrospectively. There was no significant sexual predilection in each type of cancer and 77% of all cases were occurred after age of 50. The data of occurring site and occupation(farmer; 41%) implied that sunlight exposure strongly concerned in development of skin cancer. Comparing the data of 63 cases of squamous cell carcinoma and basal cell carcinoma, authors found out no remarkable difference in mean diameter of primary lesion at first visit of clinic, but some difference in mean duration, the percentage of the cases less than 1 year­duration and percentage of T1 lesion with no statistical significance(p>0.05). Combination of surgery and radiotherapy had relatively lower recurrence rate (11%) than surgery alone (13%). Squamous cell carcinoma had higher recurrence rate(34%) and metastasis rate(28%) than basal cell carcinoma; 6% and 3%, respectively(p<0.05).

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The Production of Hydrophobic Surfaces by the Adsorption of Perfluorocarboxylic Acids onto Metal Oxides (금속 산화물에 플루오르화 카르복시산을 흡착시킨 소수성 표면의 제조)

  • Ha, Ki Ryong;Lee, Myunghee;Chung, Chinkap
    • Applied Chemistry for Engineering
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    • v.16 no.4
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    • pp.542-548
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    • 2005
  • The self-assembled monolayers (SAMs) of perfluorocarboxylic acids were fabricated on several metal oxide powders. Perfluorododecanoic acid and perfluorooctadecanoic acid were used to study the effect of chain length on SAM. Alumina, Tantalia, Titania, and Zirconia were the metal powders used. The formation of the SAMs was confirmed by DRIFT(Diffuse Reflectance Infrared Fourier Transform) spectroscopy. Since the perfluorohydrocarbons are well known for their hydrophobicity, the resulting monolayers are also expected to have high hydrophobicity. The quality of DRIFT spectra of SAMs was dependent on the powder size as well as the element of metal oxides.

A study on the bycatches by mesh size of spring-net-pot in Geo-je & Tong-young waters of Korea (거제·통영해역 스프링그물통발의 망목별 혼획 연구)

  • Cha, Bong-Jin;Cho, Sam-Kwang;Lee, Gun-Ho
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.46 no.3
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    • pp.204-213
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    • 2010
  • Test fishing was carried out using six kinds of different mesh sizes (20, 22, 24, 28, 35, 40mm) for springnet-pot to study bycatches according to the mesh size and catches survey was done for another one (mesh size : 22mm, entrance round : 350mm) in Geo-je & Tong-young waters of Korea. On the first sea experiment, it was thought that suitable mesh size of spring-net-pot catching conger-eel over 35cm with decreasing the catches of conger-eel (Conger myriaster) below 35cm was 24mm. On the second sea experiment, commercial catches were crabs (Charybdis bimaculata), octopus minor (Octopus variabilis) and others including conger-eel, and catches proportion was 60% of total catches weights. There was no big difference for the monthly catches. Self-consumption catches were 9 species including conger-eel below 35cm holding 50% of catches in the side of weights. There were 40% of bycatches for the catches weights and 63% for catches numbers in the 22mm mesh size of spring-net-pot having entrance round over 140mm. It showed that 50% of catches weights were discarded.

Biochemical Characterization of Lectin Isolated from Cherry Tomato Fruit (방울토마토 열매로부터 분리된 lectin의 생화학적 특성)

  • Park, Na-Young;Lee, Sam-Pin;Roh, Kwang-Soo
    • Journal of Life Science
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    • v.17 no.2 s.82
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    • pp.254-259
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    • 2007
  • Biochemical characterization of lectin isolated from fruit of cherry tomato through neutral saline extraction, ammonium sulfate precipitation, and affinity chromatography on Sephadex G-200 was studied. The lectin was agglutinated by trypsin-treated human ABO erythrocytes, and the most pronounced activity of agglutination was observed at B type erythrocyte. The analysis of the lectin by SDS-PAGE showed the high intensity band with molecular weights of 10.7 kDa. The optimal temperature and thermal stability of the lectin was $40^{\circ}C$ and $40-60^{\circ}C$, respectively. The maximal pH of this lectin was pH 7.2.