• Proceedings of the KIEE Conference
• /
• 2001.11c
• /
• pp.252-255
• /
• 2001

본 논문은 단일 도립 진자 계통(single pendulum systems)의 경우 계통의 에너지를 슬라이딩 평면을 구성하는데 이용한 슬라이딩 모드 제어기를 설계하고 기존의 에너지 기반 제어 기법의 결과와 비교, 그 성능에서 우위에 있음을 보인다.

• 한국ITS학회:학술대회논문집
• /
• 2004.11a
• /
• pp.12-17
• /
• 2004

• The Korean Journal of Mycology
• /
• v.18 no.2
• /
• pp.51-57
• /
• 1990

Higher fungi were collected in Mt. Jiri National Park areas from May, 1987 to October, 1987. These higher fungi were identified. As a result of identification, Conocybe rickenii (Schaeffer) Kuhner, Coprinus rhizophorus kawam et al., Agaricus comtulus Fr., Tricholomopsis decora (Fr.) Sing., Gymnopilus penetrans (Fr. ex Fr.) Murr., Amanita abrupta Peck, A. rufoferruginea Hongo and Stropharia semiglobata (Batsch ex Fr.) Quel. were newly recorded in Korea.

• The Korean Journal of Mycology
• /
• v.19 no.3
• /
• pp.214-219
• /
• 1991

Adenosine-5'-triphosphatase$(F_1-ATPase)$ in the Lentinus edodes was fractionated by ammonium aulfate 30% saturation and purified by Sephadex G-200 gel filtration in three times. Three kinds of protein fractions of $F_1-ATPase$ were isolated from this mushroom, and fraction I and ll showed its activity for the substrate, adenosine-5'-triphosphate. Its optimum pH and temperature were found to be pH 7.6 and $58^{\circ}C$, and its thermal stability was stabled for 30 min. at $20-30^{\circ}C$. The Km value of this enzyme was 1.81 mM.

• Proceedings of the KSRS Conference
• /
• v.2
• /
• pp.535-538
• /
• 2006

The coastline of the Choa Phraya Rivermouth in the Upper Gulf of Thailand has been changed drastically. The western side especially at Ban Laem Sing was eroded for 400 meter in 26 years or with the rate of 15 meter per year on the average. The Metropolitan Electricity Authority has granted five years research project to us to study the efficiency of the electric pole fence as a mean to reduce the wave force and increase sedimentation rate inside for mangrove replantation. If the method works efficiently, it will be used to reclaim the coastal land loss in other areas in Thailand. The project was done since 2005 after the fence was constructed completely in October 2005. The oceanographic surveys were conducted before and after the construction in northeast monsoon season to study the impact of physical oceanographic forces on the coastline change. The sedimentation rates were measured each month. It is rather low about 2 cm/month. The subsiding rate from the load of deltaic sediment and groundwater withdraw using boring data is about 30 mm/year. The cumulative sinking rate is 55.8 cm from 1978 to 1995. We have tried to design the method of mangrove plantation in this area. The remote sensing data such as LANDSAT and aerial photos from 1987 to 2002 for 15 years were used to compute the rate of coastline change at each 50 m section along the western side of the rivermouth.

• Journal of the Korean Geotechnical Society
• /
• v.19 no.1
• /
• pp.229-236
• /
• 2003

Ultrasonic propagation velocities of both the dilatational and shear waves through the weathered tuff soil sampled from the area tying between Ulanbator and Beijing were measured under temperature condition of near subzero by means of sing-around method. After comparing the results with obtained data on unfrozen water content, a linear relation between velocities and unfrozen water content was performed with high coefficient value. Experimental results of two kinds of rather uniform materials, namely, glass-beads and silica micro-beads, testified the similar linear relations. In addition, the change rate of dilatational wave velocities with the change of volumetric unfrozen water content was not dependent on soil type. Although a rational theory of the ultrasonic velocities dependence on the unfrozen water content is not yet proposed, the presented empirical relationships may suggest the appropriate evaluation to the effect of unfrozen water on dynamic characteristics of frozen soil.

• The Korean Journal of Mycology
• /
• v.23 no.2 s.73
• /
• pp.144-152
• /
• 1995

Through a floral study and resource investigation of Korean mushrooms during the year 1993, five species of Agaricales, Pseudoclitocybe cyathiformis (Bull.: Fr.) Sing.; Pholiota brunnescens A.H. Smith & K. Hesler; Coprinus angulatus Peck; Rhodophyllus bisporus Hongo; Suillus viscidipes Hongo and one form of Gasteromycetes, Lysurus mokusin (L.: Pers.) Fr.f. sinensis (Lloyd) Kobayashi, were found and described new to Korean flora. Pseudoclitocybe is described as an unrecorded genus to Korea. The color names cited are from Kornerup & Wanscher's Methuen Handbook of Colour (1984). All the specimens are deposited in the RDAGB's and ASIK's herbarium.

• The Korean Journal of Mycology
• /
• v.16 no.3
• /
• pp.144-150
• /
• 1988

Higher Fungi were collected in Mt. Jiri National Park areas from May, 1986 to October, 1987. These higher fungi were identified. As a result of identification, Cystoderma granulosum(Fr.)Fayod, Melanoleuca verrucipes(Fr.)Sing., lnocybe mixtilis(Britz)Sacc., Cor­tinarius pholideus(Fr.)Fr., Lactarius uvidus var. uvidus Hesler & Smith, L. vellereus var. vellereus Hesler & Smith and Boletellus ananas(Cur.)Murr. were newly recorded in Korea.

• Aerospace Engineering and Technology
• /
• v.3 no.1
• /
• pp.134-142
• /
• 2004

This is a survey report of Japan's geo-stationary satellite development. Owing to Japanese government's ambitious space development efforts since 1950's, Japan became the fourth country that launched successfully its own satellite by using its own launch vehicle with the launch of Japan's first satellite, Ohsumi, in 1970. Since then Japan is maintaining a world leader's position in space development with continuous technology accumulation. Japan is injected 97 satellites into orbit(third in the world) by the end of 2003 including 18 science satellite series, 7 technology experiment satellite series, 5 meteorological satellites, and numerous telecommunication and broadcasting satellites, etc. With successful delivery of Optus C1 satellite to Sing Tel Optus Pty., Ltd. in Australia in June 2003 by MELCO, Japan is capable of competing in the international geo-stationary satellite market.

• The Korean Journal of Mycology
• /
• v.6 no.1
• /
• pp.43-47
• /
• 1978

Some 50 fungi were collected and identified at Youngu and Mt. Sobaek from April to October in 1977. The results have shown that, following ten species are new to Korean list. Collybia dryophila (BULL. ex FR.), QUEL., Mycena polygramma (BULL. ex FR.) S.F. GRAY., M. pura (PERS. ex FR.) QUEL., Crepidotus nephrodes (BERK. et CURT.) SACC., lnocybe montana KOBAY., I. squamulosa KOBAY., Rhodophllus ater HONGO, R. violaceus (MURR.) SING., Leccinum aurantiacum (BULL.) S.F. GRAY., and Suillus aeruginascens (SECR.) SNELL. The authors wish to express our thanks to Asan Foundation for the financial support for a part of this research project.