• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2002.07a
• /
• pp.74-77
• /
• 2002

The channel of the superconducting Flux Flow Transistor has been fabricated with plasma etching method using ICP. The ICP conditions were 700 W of ICP power, 150 W of rf chuck power, 5 mTorr of the pressure in chamber and 1:1 of Ar : Cl$_2$, respectively. The channel etched by plasma gas showed superconducting characteristics of over 77 K and superior surface morphology. The critical current of SFFT was altered by varying the external applied current. As the external applied current increased from 0 to 12 mA, the critical current decreased from 28 to 22 mA. Then the obtained r$\sub$m/ values were smaller than 0.1Ω at a bias current of 40 mA. The current gain was about 0.5. Output resistance was below 0.2 Ω.

• Journal of Korean Society for Atmospheric Environment
• /
• v.15 no.1
• /
• pp.41-51
• /
• 1999

In this study, the two dimensional morphology of particle accumulates on a cylindrical fiber was numerically simulated when a uniform external electric field was present across a cylindrical fiber. In order to investigate the mechanism of linear dendrite formation which is observed under the above electrostatic condition, the electrostatic forces between a newly introduced particle and each deposited particle were calculated and compared with those between the particle and fiber As a result of this study it was found that dielectrophoretic forces between the oncoming particle and fiber play principal roles in linear dendrite formation.

• Korean journal of applied entomology
• /
• v.54 no.3
• /
• pp.263-270
• /
• 2015

In this study, one species of the bag moth, Mahasena aurea (Butler) (Lepidoptera: Psychidae), was found for the first time in Korea as a new insect pest on leaves of Liriope spicata (Thunb.) Lour. Also, the female larvae and adults of the species were first collected in this country. Larvae, pupae, and adults of both sexes are redescribed with illustrations of all external characteristics including the genitalia of the male.

• Korean journal of applied entomology
• /
• v.57 no.4
• /
• pp.279-285
• /
• 2018

Different English terms indicating a same part in insect head were arranged according to position and function, and their corresponding different Korean terms were suggested. The terms include lines on head surface, head regions of embryo, external and internal skeletons, internal parts of mouth, long mouths, external parts and basic segments of antenna, antennal shapes, and hairs on surface.

• International Journal of Advanced Culture Technology
• /
• v.9 no.1
• /
• pp.22-27
• /
• 2021

Morphology of contemporary city streets is composed of overlapping infrastructures corresponding to the new street within the established organization, contemporary system, future circumstance, and population. As well, two overlaid organizations and morphological, historical, social and physical development lead to sharp acute algle(triangular) site, and the architecture in this site has a restriction on the availability of the internal space and the external design due to outside shape sharpness. We want to have a positive effect on the internal and external design of the architecture in the future by categorization of the shape and processing characteristics of the acute angle corner of the trilateral site. The characteristics and design categorization shown in this case study are as follows. Constitution a unique and independent form, lead streets and shape a exclusive image of the landscape, alleviate sharpness by configuring a acute angle point as a plane, use void to give reserve character, replace roundness for companionability to induce ambience in the road, embrace the characteristics of the site and create internal spaces and functions, emphasize the characteristics of each stairs, retain of uniqueness and highlight the characteristics of a vertical elements.

• Korean Journal of Animal Reproduction
• /
• v.23 no.4
• /
• pp.353-358
• /
• 1999

Four important attributes for successful fertilization by a spermatozoon are (ⅰ) correct morphology, (ⅱ) correct presentation of egg recognition and fusion molecules, (ⅲ) progressive motility and (ⅳ), correct transfer of signalling molecules from sperm to egg for activation of development. In this presentation, these topics will be described and illustrated with emphasis on the endogenous control mechanisms that enable spermatozoa to respond to external signals. (omitted)

• The Korean Journal of Soil Zoology
• /
• v.11 no.1_2
• /
• pp.13-15
• /
• 2006

This report concerns with three species of eriophyid mites on Licium chinensis in Korea. Of them, the external morphology of Aceria tjyingi (Manson 1973) was observed with Scanning Electron Microscope. The author reviewed three species of Korean eryophid mites and suggests Korean names of Aceria kuko kishida, A. macrodonis Keifer, and A. tjyngi (Manson), respectively.

• Journal of Forest and Environmental Science
• /
• v.17 no.1
• /
• pp.116-121
• /
• 2001

The external morphologies of Sypnoides fumosa (Butler) and Scedopla koreana Sugi larvae of Ophiderinae were observed.

• Journal of Forest and Environmental Science
• /
• v.19 no.1
• /
• pp.12-17
• /
• 2003

The last-instar larval external morphologies of Orthosia carnipennis (Butler) and Pseudaletia separata (Walker) of Hadeninae (Noctuidae) were observed.

• Journal of Forest and Environmental Science
• /
• v.15 no.1
• /
• pp.10-17
• /
• 1999

The larval external morphologies of Pandemis heparana (Denis et $Schifferm{\ddot{u}}ller$) and P. cinnamomeana (Treitschke) of Archipini were described.