• Korean Journal of Culture and Social Issue
• /
• v.21 no.3
• /
• pp.511-534
• /
• 2015

The primary goal of the present study was to examine the moderating effects of coping strategies, cultural identity, and bicultural self-efficacy on the relationship between perceived discrimination and depressive symptoms of Korean Canadian college students. Data were collected from 214 Korean Canadian college students studying in Canada through an online and offline survey. A direct effect of perceived discrimination on depressive symptoms and the moderating effects of coping strategies on the relationship between perceived discrimination and depressive symptoms were examined by using hierarchical regression analysis. And three-way interaction of perceived discrimination, coping strategies, and cultural identity, and perceived discrimination, coping strategies, and bicultural self-efficacy on depressive symptoms were examined. Results from a hierarchical regression indicated that perceived discrimination significantly predicted depressive symptoms and this finding is in line with previous studies. Second, reflective, suppressive, and reactive coping strategies did not moderate the relationship between perceived discrimination and depressive symptoms. Third, the three-way interaction effect of perceived discrimination, suppressive coping strategy, and heritage identity predicted the depressive symptoms. Low heritage identity, high level of perceived discrimination and the frequent use of suppressive coping strategy increased the level of depressive symptoms. Fourth, the three-way interaction effect of perceived discrimination, coping strategies, and bicultural self-efficacy did not predict the depressive symptoms. Limitations and applied implications of the results are discussed.

• Proceedings of the KIEE Conference
• /
• 2011.07a
• /
• pp.1642-1643
• /
• 2011

본 논문은 적응형 알고리즘(Adaptive Algorithm)을 이용하여 재머(Jammer)를 억제하는 것을 기존의 알고리즘을 시뮬레이션으로 확인한다. 본 논문에서는 원하는 방향으로 빔을 형성하는 동시에 특정방향 주로 부엽(sidelobe)으로 들어오는 재머의 신호를 억제시키는데 있어 여러 가지 적응형 알고리즘을 확인하고, 알고리즘을 이용하여 부엽으로 들어오는 재머신호를 어떻게 억제하는지 시뮬레이션을 통해 결과를 확인하도록 할 것이다.

• Korean journal of applied entomology
• /
• v.24 no.2 s.63
• /
• pp.85-95
• /
• 1985

It has been tried to find effective biological control measures involved in nature of soil suppressiveness to fusarium wilt of cncumber caused by Fusarium oxysporum f. sp. cucumerinum Owen. Total 28 soil samples were obtained from Jinju, Haman, Namji, Milyang and Suncheon vinyl house area. The disease response of test soil was quantified in terms of DI50 value which caculated from log-probit transformation of diseases response curves. Soils designated 5 from Jinju, 7 from Suncheon, 22 from Namji were recognized as suppressive to fusarium wilt of cucumber. This suppressiveness was completely nullified after autoclave. The disease suppressiveness of tested soil did not indicate any consistency according to either chemical property or texture of soil. Conidial germination, induction and germination of chlamydospore were markedly inhibited in supprerssive soil compared to those in intermediate or conducive soils, however, mycelial lysis did not appear to have direct relationship with disease suppressiveness of given soil. Population density of fluorescent Pseudomonads and Bacillus spp. in the soil originated from different degree of suppressiveness were not different significantly but the number of lytic bacterial plaques measured by triple layer agar method was remarkably higher in suppressive soil than that in intermediate or conducive soil.

• Journal of the Korean Chemical Society
• /
• v.38 no.8
• /
• pp.576-584
• /
• 1994

The method described offers rapid and efficient sample preparation using on-line microwave digestion of metal oxides in water sample with direct elemental detection by ICP-AES. The open tubing digestion system(OTD) and the restraint tubing digestion system(RTD) for flow injection(FI) were designed and tested to find the optimum conditions. Comparison of OTD and RTD indicated that RTD was 3 times faster on the digestion time, and 10 times higher on sample mass. Finally, the results of RTD agree well with those by conventional microwave open vessel in all cases and show good precision; Fe and Cu show good with about 5% of RSD, while Zn and Co more or less than 10% RSD.

• Journal of Digital Convergence
• /
• v.13 no.6
• /
• pp.235-246
• /
• 2015

After kidney transplantation, immunosuppressive medication is essential to enhance the quality of life and survival of the transplanted patient. To promote the medication adherence, subjects are required to have converged attitude with open mind. Medication adherence will depend on the attitude of the psychosocial characteristics and treatment guidelines. The purpose of this study was to identify the specific types and characteristics of medication adherence in the view of kidney transplanted patients. Q-methodology, a technique for extracting subjective opinions, was used. Forty participants completed the Q-sort activity, rating each statement relative to the others. The collected data were analyzed by QUANL PC program. Four types of medication adherence of kidney transplanted patients were identified: 'positive lifestyle management type', 'vigilant appearance management type', 'somber oblivion type', 'vigilant family support type'. Through the identification of attitudes to medication adherence, repeated and individualized medication adherence program will help to prevent graft rejection.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• v.15 no.2
• /
• pp.132-142
• /
• 2004

Most articles of Reactive Attachment Disorder reported Disinhibited Type children adopted from other countries. Reports from only Turkey and Korea focused on Inhibited Type of Reactive Attachment Disorder children whom raised by their own parents and whose symptoms are very similar to Autistic Disorder. Since articles of treatment of Reactive Attachment Disorder, especially for Inhibited Type are very rare, this article informed the author's experiences of treatment for Korean Reactive Attachment Disorder children since 1987. To treat Reactive Attachment Disorder patients and their parents, three important areas must be included : 1) to make a therapeutic environment for a Reactive Attachment Disorder child, 2) to make an attachment between Reactive Attachment Disorder child and his/her mother through individual play therapy, filial therapy, and group therapy with sibling or peer, 3) to catch up developmental delay by speech therapy, cognitive therapy and therapeutic education. This treatment methods can be more easily and more effectively applied to Korean patients than other methods from western countries including USA or England.

• Journal of Aquaculture
• /
• v.10 no.2
• /
• pp.123-131
• /
• 1997

Growth of triploid abalone, Haliotis discus hannai induced by cody (3$^{\circ}C$) shock and its feed efficiency were investigated from larva to adult for 51 months. After 51 months from triploidy induction, the triploid abalones have outgrown to diploid abalones in shell length and total weight. Triploid abalones with inhibition of extrusion of first polar body (3n-1pb) were outgrown to diploid abalones, however, triploid abalones with inhibition of extrusion of second polar body (3n-2pb) were not significantly different from diploid controls in shell length and total weight through the whole rearing period (P<0.05), because of their heterozygosity differences. Daily feeding rates and feed conversion rates decreased with the growth of abalones and both rates had no differnce between two experimental groups. After 51 months from inducing triploid, conditin index of triploid abalone (64.1%) was higher than that of diploid control (59.4%) (P<0.05). Survival rate was 63.0% in triploid group (3n-1pb 62.0%, 3n-2pb 64.0%) and 62.0% in diploid group during the experimental period.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.11 no.3
• /
• pp.313-318
• /
• 2018

A coaxial band rejection filter is designed and fabricated for a beam interacting cavity. The proposed filter has a quarter wavelength choke for the dominant mode of the cavity. The equivalent circuit of the coaxial band rejection filter is presented and the ABCD parameter os each part is derived to obtain the ABCD parameter of the entire filter. The scattering matrix was obtained from the ABCD matrix and the was simulated by MATLAB using the obtained scattering matrix. The coaxial band rejection filter structure was simulated using HFSS, and the results confirmed the simulation using the equivalent circuit was useful. The designed coaxial band rejection filter was fabricated with 6-1/8 flange. The fabricated filter was measured using a transition from 6-1/8 flange to N-type flange. The insertion loss of the fabricated filter is greater than 25 dB in the dominant mode of the cavity and less than 0.25 dB in the first higher order mode. The measurement results are in good agreement with the simulated results and meet the design specification.

• Proceedings of the Korean Society of Propulsion Engineers Conference
• /
• 2006.11a
• /
• pp.89-92
• /
• 2006

In the present study, the flow field of a mesh type suppressor with varying holes at the central portion is studied to investigate drain flow characteristics in a cylindrical tank. Further, an attempt is made to understand the changes in the flow field brought about by the suppressors of different kinds in a circular tank which ultimately prevents vortex formation. For this purpose, flow visualization studies using PIV (Particle Image Velocimetry) to determine the flow patterns in a cylindrical tank with circular cross section without suppressor and with suppressor are carried out after imparting rotation to the liquid in the tank. Results are obtained when there is no draining and with draining. The flow field is visualized both in horizontal and vertical planes.

• Korean Journal of Plant Resources
• /
• v.21 no.4
• /
• pp.324-328
• /
• 2008

One hundred-eighty extracts of soil collected from ginseng (Panax ginseng C.A. Meyer) fields were subjected to lettuce germination test, electrolyte leakage, cell viability and antioxidant enzyme activity test. Regardless of various cultivation periods, there was no significant difference in soil pH, the content of organic matter and available phosphate in ginseng fields. Based on lettuce seed germination test, six soil extracts showing inhibition of germination and/or seedling growth were selected for further study. Selected soil extracts markedly inhibited cell viability of ginseng cultured cells but leakage of electrolytes were not affected by the treatment. Enzyme activity of superoxide dimutase in ginseng cultured cells was not affected by the treatment with the soil extracts. However, those of peroxidase and catalase were significantly inhibited by the treatment with soil extracts which showed inhibition of lettuce seed germination and seedling growth.