• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.10a
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• pp.1361-1364
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• 2004

There is a need for fundamental understanding of biotribological characteristics of various biomaterials sliding against biological materials in order to develop a moving mechanism of medical microsystems having high energy efficiency. A special experimental equipment was designed and built to study the frictional behavior of various biomaterials sliding against a small intestine specimen of a pig. Friction experiments for six biomaterials were performed. Particularly, the effects of load and speed on frictional behavior were investigated. The results of this work will aid in the development of the actuator for a self-propelling micro-endoscope.

• Proceedings of the Optical Society of Korea Conference
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• 1991.06a
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• pp.64-64
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• 1991

The interaction of high-intensity, focused, nanosecond laser light with matter results in the production of high-temperature plasma, which in turn emits an intense pulse of x rays. The x-ray spectrum consists of strong line components of several keV photon energy and broad continuum. Such an x-ray source provides many advantages over conventional ones for many applications. Pulse nature of the x-ray emission is well-suited for studying transient phenomena and for imaging living biological specimen. Recent experiments have also shown that the laser plasma x ray may be used for x ray lithography. These studies and other applications will be discussed in detail.

• Animal Systematics, Evolution and Diversity
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• v.24 no.2
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• pp.199-203
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• 2008

Desmotimmia mirabilis (Timm), a rarely known desmoscolecid nematode species, was discovered for the first time from the Yellow Sea off southwestern coast of Korea. This is the third record of the species, and the first report from the northwestern Pacific region. Redescription is prepared on the basis of a male specimen from South Korea.

• Journal of Species Research
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• v.5 no.2
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• pp.220-222
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• 2016

An Uraniidae moth, Lyssa zampa (Butler, 1869) is newly discovered from southern Korea. One male specimen was collected at a valley of south aspect of Mt. Hallasan, Jejudo in July, 2014. This species is briefly described and illustrated here. DNA barcoding sequence (Genbank KU160388) for the species was provided for species identification.

• Journal of Species Research
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• v.7 no.4
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• pp.333-339
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• 2018

Rotifers collected from Duung and Gyeongpo wetlands in Korea were investigated. Five species belonging to five genera in four families of monogonont rotifers were identified: Cephalodella ventripes (Dixon-Nuttall), Dicranophorus grandis (Ehrenberg), Lecane undulata Hauer, Taphrocampa selenura Gosse, and Testudinella emarginula (Stenroos). All these species are new to the Korean fauna, even though they have very wide or cosmopolitan distributions. The present study is the first report on the genus Taphrocampa Gosse from Korea. The taxonomy and distribution of each new Korean record are briefly discussed here. The diagnostic characteristics, photomicrographs and the deposition of voucher specimen are provided for each new Korean record.

• Proceedings of the KOSOMBE Conference
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• v.1996 no.05
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• pp.164-166
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• 1996

Human aorta has viscoelastic behavior. The test of tissues such as aorta, skin, muscle, and ok. is required to consider visco effect on deformation behavior. Creep and slow recovery are main aspects of viscoelasticity of tissue engineering. Volumatric strain plays a important role in determine slow recovery of human arota. This study is to suggest the method avoiding viscous effect in tissue experiment The results shows the time scale when the specimen can be fully recovered from slow deformation. Also, this study observes the qualitative creep-effect on elastic strain in 1 minute at the same loading.

• Animal Systematics, Evolution and Diversity
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• v.24 no.1
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• pp.129-133
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• 2008

A pagurid crab carrying half of a bivalve shell was collected from Jejudo Island and identified as Porcellanopagurus nihonkaiensis. A diagnosis with illustrations of this specimen is presented. Although, Komai and Takeda (2006) reported this species as rare and known only from Japan, its range is now extended to Korean waters. At present, it is the only species of the genus Porcellanopagurus represented in Korean waters.

• Korean Journal of Ichthyology
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• v.24 no.3
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• pp.227-229
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• 2012

Based on a single juvenile specimen (20.7 mm SL) collected from Jeju Island, Apogon semiornatus was described as a new Korean record. The species is characterized by having VI-I, 9 dorsal fin rays, 12 pectoral fin rays; II, 8 anal fin rays and two blackish oblique bands on yellowish red body. A new Korean name, "Geom-eun-du-jul-bulg-eun-dong-gal-dom", is proposed.

• Animal Systematics, Evolution and Diversity
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• v.23 no.1
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• pp.99-102
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• 2007

An alpheid shrimp Betaeus gelasinifer Nomura and Komai, 2000 new to Korean waters is described and illustrated based on two specimens collected from Changseun and Ulleungdo Island, Korea. This is the first record of B. gelasinifer outside Japanese waters. B. gelasinifer is readily separated from B. granulimanus Yokoya, 1927, the only member of Betaeus from Korea by the morphological differences in the first pereopods and the diaeresis of uropod. Brief note on the armature of cutting edge of the chela of the left first pereopod in Korean female specimen of B. gelasinifer is provided.

• Animal Systematics, Evolution and Diversity
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• v.31 no.3
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• pp.191-200
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• 2015

Two porcelain crab species, Aliaporcellana pygmaea (De Man, 1902) and Lissoporcellana nakasonei (Miyake, 1978), are reported here for the first time from Korean waters based on specimens collected from Jeju Island, Korea. The genus Aliaporcellana Nakasone and Miyake, 1969, and Lissoporcellana Haig, 1978 are also reported here for the first time in Korea. Aliaporcellana pygmaea has a wide distribution. The specimen reported here is the most northern record of this species. While, Lissoporcellana nakasonei, associated with anthozoans, was known for distributing range from New Caledonia to southern Japan. As a result, the distribution rage of L. nakasonei is changed to Korea. Now, 12 species of porcelain crabs have been reported in Korean waters.