• Journal of Species Research
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• v.8 no.3
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• pp.259-267
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• 2019

Five free-living nematode species belonging to the order of Rhabditida are described for the first time in Korea. Two unrecorded species of Rhabditidae, Cruznema tripartitum (Linston, 1906) Zullini, 1982, and Poikilolaimus oxycerca de Man, 1895, and one species of Peloderidae, Pelodera strongyloides Schneider, 1860, were collected in Korea. C. tripartitum has nine pairs of genital papillae arranged in 2+2+1+4 differently from similar species of C. scarabaeum which has ten genital papillae arranged in 2+1+4+3. Poikilolaimus oxycerca has shorter tail (shorter than anal body diameter) compared to similar species of P. regenfussi which has longer tail(longer than anal body diameter). Pelodera strongyloides has shorter tail(1-1.5 times anal body diameters long) than P. punctata (4 anal body diameters long). Two unrecorded species of Panagrolaimidae, Panagrolaimus apicatus Schuurmans Stekhoven & Teunissen, 1938 and Panagrolaimus rigidus (Schneider, 1866) Thorne, 1937 were collected in Korea. P. apicatus has rounded and lower lip compared to similar species, P. margaretae Massey, 1964 which has finely pointed lip. P. rigidus has slender tail and lips rounded and flat barely separated when compared to similar species, P. subelongatus(Cobb, 1914) Thorne, 1937 which has plumper tail and lips are well separated.

• Journal of the Korea Institute of Military Science and Technology
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• v.22 no.4
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• pp.441-451
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• 2019

When a store is launched, the umbilical plug should be separated from the launcher without any physical interference and fragments. In order to satisfy these conditions, an umbilical plug and an umbilical separating device were designed. The plug is separated from the receptacle of the store while moving along inclined planes by the store thrust and the spring force connected from the launcher to the plug. As a result of the prototype test, the hanger on the store collided with the plug. Several tests were conducted after some actions were taken to prevent the collision. However, not only the same phenomenon was repeated, but also fragmentation occurred. In this study, the non-colliding conditions were analyzed through rigid and flexible multi-body dynamics analysis.

• Wind and Structures
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• v.11 no.5
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• pp.345-359
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• 2008

An experimental investigation of the flow over the rectangular body located in close proximity to a ground board was reported using the particle image velocimetry (PIV) technique. The present experiments were conducted in a closed-loop open surface water channel with the Reynolds number, $Re_H=1.2{\times}10^4$ based on the model height. In addition to the PIV measurements, flow visualization studies were also carried out. The PIV technique provided instantaneous and time-averaged velocity vectors map, vorticity contours, streamline topology and turbulent quantities at various locations in the near wake. In the vertical symmetry plane, the upperbody flow is separated from the sharp top leading edge of the model and formed a large reverse flow region on the upper surface of the model. The flow structure downstream of the model has asymmetric double vortices. In the horizontal symmetry plane, identical separated flow regions occur on both vertical side walls and a pair of primary recirculatory bubbles dominates the wake region.

• Korean Journal of Animal Reproduction
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• v.3 no.1
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• pp.36-40
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• 1979

This experiment was conducted to separate X-and Y-bearing spermatozoa of boar semen. The ratio of X-and Y-bearing spermatozoa to total spermatozoa included in ejaculated semen obtained from 4 boars raising at the College of Agriculture, Seoul National University and treated by the sedimentory or electrophoretic technique was estimated. For the electrophoresis, the semen specimen was placed into the co, pp.r loop electrodes in 30cc of glass tube at room temperature for 30 minutes and in order to sedimentary separation, the semen was sedimented in 5$^{\circ}C$ water for 50 minutes. The sperm fluorescent stainning technique was performed by the method of Bhattacharya etal (1976). The results obtained were as follows; 1. Average rate of B-body bearing spermatozoa in normal boar semen was 45.15${\pm}$4.20%, and no significant difference was observed between 1st (44.88${\pm}$6.41%) and 2nd (42.75${\pm}$4.17%) fraction of fractionally collected semen. 2. Spermatozoa were separated into several different fractions by sedimentation. B-body a, pp.arances from the top and bottom fraction were 53.70% and 33.43%, respectively. There were highly significant difference between the top and bottom fractions. 3. The swine spermatozoa were separated into X-and Y-bearing spermatozos by electrophoresis without interferring the sperm motility. The rates of B-body bearing spermatozoa attracted on the anode and cathode were 60.4% and 21.8%, respectively. Highly significant difference betwee two fractions was also observed.

• The Research Journal of the Costume Culture
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• v.16 no.2
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• pp.349-368
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• 2008

The purpose of the study was to examine the effect of internal traits of perceivers on sensory images of fashion materials and dress wearers. Perceiver's internal traits included aspects of Gender-body Ideology (GBI), as well as fashion lifestyles and fashion interest. The research was conducted on a quasi experimental basis, with subjects numbering 187 male and 207 female college students. Data were collected in the period from March 19th to March 31st, 2007. Two sets of stimuli and three measuring tools (to assess GBI, fashion life styles and fashion interest) were used. The stimuli were thirteen fabric specimens and thirteen photographs of dress styles, manipulating by two variables: (a) motif colors (white, grey, pinks and blue); (b) motif categories (plain, paisley, floral, stripes, and zebra effect). The data were analysed by factor analysis, ANOVA, Duncan's multiple range test. The major findings were as follows: Gender-body ideology was separated into agonic and hedonic dimensions. Fashion life style was separated into 3 dimensions(shopping life-style pursuit, social activity pursuits and brand life style pursuits). The internal traits of perceivers influenced preferences and buying intentions. Shopping life-style pursuits had more impact on preferences and buying intentions than other internal traits.

• Journal of Korean Society of Water and Wastewater
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• v.25 no.1
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• pp.75-84
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• 2011

This study was conducted to provide a basic information for the establishment of operation and treatment processes in sewer system of Nakdong river basin to minimize the overall pollutants loading to water body. Sewage flowrates were regularly measured and monitored at various sampling points of newly-built separated sewer system located in G City GA sites. To assess the inflow sewage flowrate, various calculating methods such as water-use evaluation, average-minimum daily flow quality evaluation, minimum daily flow evaluation, night water-use evaluation were used. Average I/Is were calculated except water-use evaluation. Average I/Is were found to be 6.5 $m^{3}/d$, 3.5 $m^{3}/d$, 7.7 $m^{3}/d$ at GA-1, GA-2, GA-3 points respectively. I/I ratios of three areas were found to be 4.8 %, 2.0 % and 2.7 % respectively and were obviously lower than those of the other separated sewer systems as shown in the previous studies.

• 한국생물공학회:학술대회논문집
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• 2005.04a
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• pp.343-347
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• 2005

The polysaccharides were extracted from fruiting body, mycelia, and cell-free broth of Agaricus blazei Murill. The crude polysaccharides were obtained by the ethanol addtion. They were further purified using ion-exchange chromatography and gel chromatography. Ion-exchange chromatography using DEAE-cellulose column separated neutral and acidic polysaccharides. Neutral polysaccharides were then purified with gel filtration chromatography. For single peak obtained from gel filtration chromatography was molecular weight was measured with Sepharose CL-6B. The same procedure with acidic polysaccharides were performed to get the purified polysaccharides.

• 제어로봇시스템학회:학술대회논문집
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• 1991.10a
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• pp.401-406
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• 1991

An integrated control design and modeling method of multibody space structures is presented as a tool to control an d describe the large rotational motions of the space structures. The structures representeed with three separated substructures have independent control systems but linked with joints interacting the dynamic motions of the substructures. The effect of the structural flexibility to the control performance was analyzed and the simulation results showed that effectiveness of the designed control logic in controlling the motions of the multi-body space structures.

• Bulletin of the Korean Chemical Society
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• v.12 no.2
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• pp.211-213
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• 1991

The ground state of the oxygen molecule is calculated by various methods of coupled cluster approaches and many body perturbation theory using a double zeta plus polarization basis set and the UHF reference state. All the methods employed are capable of describing the oxygen molecule near the equilibrium bond length and the separated atom, but do not correctly depict the breaking of the multiple bond. For this basis set, including more correlations does not necessarily improve the agreement with experiment for molecular properties such as bond lengths and dissociation energies.

• Journal of the Korean Society of Costume
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• v.61 no.9
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• pp.27-38
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• 2011

This study focused on the body modification in fashion illustration based on 'Corps sans Organes' of Deleuze. An argument about the changes of ideal body to define the aesthetic consciousness of times has lasted for a long time. Therefore, analyzing body modification in fashion illustration to express the ideal beauty could be effective motives to understand the changes of ideal bodies related with socio-cultural meanings, and be helpful to understand the overall trends of modern fashion illustration. To classify the types of body modification, the concept of 'Corps sans Organes' of Deleuze was used as an analyzing tool. As the final result, the characteristics of body modification could be divided into three groups; the fragmentation of bodies, the pastiche of bodies, and the abstraction of bodies. First, in the fragmentation of bodies, which is related with flexibility, pluralism, and subjective views on body, the bodies were separated as molecules. Second, the elements of pastiche of bodies could be subdivided into five sub-groups; sex, plants, animals, texts and figure, and machines. The pastiche of bodies was used to extend the limitation of human capabilities and to reinterpret the human identities. Last, the abstraction of bodies based on contingency, indeterminacy, and subjective associations could be related with the nomadic and indefinite body images. The body modification could be considered as the context of nomadism, indeterminacy, and virtuality of modern-times, and it would be the basic data to understand the body modification in fashion illustrations.