• 한국농촌생활과학회지
• /
• 제5권2호
• /
• pp.159-169
• /
• 1994

The Purpose of this study was to investigate the actual conditions of rural housewife's sex role attitude, the value consciousness of home management and the satisfaction of household work. Further, basic data for the improvement of the satisfaction of household work and the value consciouseness of home management will be produce through grasping the relationship of them. For these purposes, the data were collected by using questionnaire distributed to 292 housewives living in Cheong Song. The data were analyzed using descriptive statistics, One Way Anova, Pearson's Correlation analysis and Multiple Regression analysis. The results of the research were as follows : 1. Rural housewife's sex role attitude comparatively took the transitional position and the value consciousness of home management was modernized. Housewife's satisfaction of household work was generally usual. 2. There were significant differences in the sex role attitude according to the type of housing. 3. The value consciousness of home management of rural housewives was variable according to housewife's occupation, husband's occupation and the type of housing. 4. Among the independent variables, the number of family member, the number of children and family style. 5. There were significant differences in the satisfaction of household work according to housewife's sex role attitude. 6. Among the independent variables, the number of children, monthly family income, the sex role attitude, the value consciousness about household work, education and leadership had significant influence on the satisfaction of household work.

• 한국수산과학회지
• /
• 제25권2호
• /
• pp.93-102
• /
• 1992

In order to reduce long preparating time for alkali pretreated B-type gelatin, enzyme pretreatment was tried on flounder(Limanda aspera) skin for I-type gelatin. The optimal extraction conditions of the B-type gelatin were 9 folds of added water with material(w/w), 3 hrs of extraction time, $60^{\circ}C$ of extraction temperature and pH 5. The maximum amount of I-type gelatin was extracted at $60^{\circ}C$ for 3 hrs using water controlled to pH 6.0(material : water= 1:9, w/w). The yields of the B- and E-type gelatin were $64.2\%\;and\;59.2\%,$ respectively. The B-type was superior to the B-type in physical properties such as jelly strength, viscosity and electric conductivity. Molecular weight of B-type was so far larger than that of the E-type due to different pretreatment method. Hydrolysis ratio of the E-type was higher than that of the B-type because of its molecular weight. Results suggest that B-type product would be better than I-type as fish skin gelatin but E-type was desirable in hydrolyzate preparation.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 2009년도 추계학술대회 논문집
• /
• pp.264-264
• /
• 2009

The sensitivity lighting of pendant type used Micro-controller AVR, embodiment method for Munsell chromaticity diagram system and adoption method for light source lens respectively. About a plan design of light fixture, LED circuit designed flow chart of circuits and LED driver of organizations in electron device. For used Solidworks soft ware program, LED light source must take a heat shink part and LED light fixture module for sensitivity lighting of pendant type into considerations

• Korean Journal of Acupuncture
• /
• 제25권1호
• /
• pp.213-227
• /
• 2008

Objectives : We studied on anti-allergic effects of Semen Perillae Herbal Acupuncture(SPHA) and Semen Perillae Herbal Acupuncture Solution(SP). Methods : In vivo, Animals were herbal-acupunctured SPHA at both ST36 three times for 5 days. Then, we investigated compound 48/80-induced active systemic anaphylaxis (ASA) using ICR mice and anti-DNP IgE-induced passive cutaneous anaphylaxis (PCA) using Sprague Dawley rat. In vitro, we measured cell viability, b-hexosaminidase release, IL-4 and TNF-a from RBL-2H3 cells after treatment of SP of various concentrations. Results : In vivo, SPHA pretreatments at both ST36 inhibited compound 48/80-induced ASA. PCA was inhibited by SPHA pretreatments at both ST36 and optional points. In vitro, SP treatments were not affect on cell viability and inhibited b-hexosaminidase release, IL-4 and TNF-a. Conclusions : These results suggest that SPHA and SP may be beneficial in the inhibition of allergic inflammatory response.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1994년도 하계학술대회 논문집 C
• /
• pp.1512-1516
• /
• 1994

FLIC(Fluid in cell) method has been used for analyzing a cold gas flow field in an interrupter of a circuit treater since 1970s. In this paper FLIC method is applied to calculation of a cold gas flow and then combined with the simple are analysis method in order to investigate the flow field characteristics in a puffer type interrupter rated at 145kV 40kA. The results for a cold gas flow agree with the experimental measurement well. The other results such as pressure rise, arc temperature, post-arc current and so forth am also reasonable and show the possibility that the combined program can be applied to the design of UHV interrupters.

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2008년도 추계학술대회B
• /
• pp.2856-2861
• /
• 2008

A catalytic burner has been developed to utilize thermal energy from the fossil fuel without nitrogen oxides (NOx) emission. The burner is shaped into a mat to maximize the heating surface. Premixed combustion has been developed to be used in a closed chamber, such as a radiation type industrial dryer. The burner yields the thermal energy in the form of thermal radiation in the infrared regime, which is proved to be effective to dry organic substances for low moisture condition. Thermal efficiency including the sensible heat is better correlated to the moisture compared to the dry rate.

• 한국정밀공학회지
• /
• 제11권6호
• /
• pp.127-135
• /
• 1994

This paper is concerned about a high speed electromagnet of Pressure control solenoid valve. Solenoid valve is controlled by means of Pulse width modulation. The magnetostatic field problem on a solenoid is numerically solved by the 2-D axisymmetric finite element method. And permeance method is adopted for analysing the static and dynamic property of solenoid part theoretically. In addition, in this study, experiments on solenoid part were performed in order to measure the magnetic force and plunger displacement. The numerical results coincided with the experimental results. As a result, the magnetic force has the linear relation with displacement of plunger and the primary factors on the performance of PWM type high speed electromagnet are coil resistance, plunger mass, and the length of air gap between plunger and core.

• 한국산림과학회지
• /
• 제99권5호
• /
• pp.663-672
• /
• 2010

The pollen morphology of eleven species and three forms of the genus Rhododendron (Ericaceae) in Korea was examined using light, scanning electron and transmission electron microscopy. The pollen grains are grouped in permanent tetrahedral tetrads; viscin threads are present on the tetrads. The hexacolporate tetrads are of tricolporate monads whereby the apertures form in pairs at six points in the tetrad. The exine sculpture pattern is rugulate, scabrate or verrucate on mesocolpium but psilate, rugulate or microscabrate around the aperture on apocolpium. The exine of Korean Rhododendron pollen consists of tectum, columella, foot layer and endexine. The surface of viscin threads is more or less smooth. The threads are sometimes tangled together and occasionally divided into strands. Six types are recognized based on the pollen morphology. The types are: (1) Micranthum-type (rugulate mesocolpium and psilate apcolpium), (2) Tomentosum-type (rugulate mesocolpium and apocolpium), (3) Aureum-type (scabrate mesocolpium and rugulate apocolpium), (4) Brachycarpum-type (scabrate mesocolpium and rod shaped-microscabrate apocolpium), (5) Schlippenbachiitype (scabrate mesocolpium and round-microscabrate apocolpium) and (6) Weyrichii-type (verrucate mesocolpium).

• 한국광학회지
• /
• 제7권4호
• /
• pp.386-389
• /
• 1996

We report on comparative results obtained from harmonically mode-locked laser operations of ring-type and figure-of-eight(F8) type erbium-doped fiber lasers by using a directional-coupler type electro-optic modulator as an active mode-locker. The mode-locked and transform-limited pulses of 10.6 ps width were obtained at harmonics of the fundamental cavity frequency with the F8 type laser while mode-locked laser pulses greater than 15 ps were achieved with the ring type laser.

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2003년도 춘계학술대회
• /
• pp.1447-1452
• /
• 2003

Vortex is very interesting flow phenomena on the heat transfer enhancement. In the present study, naphthalene sublimation technique is used to determine the average and local mass transfer coefficients on the flat plate with vortex generator. A parametric study with Reynolds number and angle of attack is carried out to investigate the heat transfer enhancement. The heat transfer coefficients on the flat plate with rectangular type and delta type vortex generator are compared with those of the flat plate without the vortex generator. Comparing heat transfer coefficients between rectangular type and delta type vortex generator, rectangular type vortex generator has much higher value than delta type vortex generator at the same condition.