• Korean Journal of Biological Psychiatry
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• v.12 no.2
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• pp.159-164
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• 2005

Objective:The aim of this study was to evaluate the temperament and character profiles of the patients with posttraumatic stress disorder(PTSD) after burn injury. Methods:The study subjects consisted of 23 PTSD patients after burn injury, 24 patients not being diagnosed as PTSD after burn injury(non-PTSD) and 53 healthy controls. The assessment of PTSD was performed using clinician administered PTSD scale. All participants were instructed to complete the Temperament and Character Inventory(TCI), the Beck Depression Inventory and the State and Trait Anxiety Inventory of Spielberger. Results:The PTSD group after burn injury, compared with the non-PTSD group and the normal controls, had the higher novelty seeking and harm avoidance scores. But there were no differences in other dimensions in the TCI among the three groups. Conclusion:The results of this study suggest that the PTSD group after burn injury showed the specific properties of temperament and character compared with the non-PTSD group and the normal group.

• Journal of Energy Engineering
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• v.13 no.2
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• pp.118-127
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• 2004

The purpose of this study is experimentally to analyze that intake port swirl, injection system and turbocharger have an effect on the engine performance and the emission characteristics in a V8 type turbocharged intercooler D.I. diesel engine of the displacement 16.7ι, and to suggest the improvement of engine performance. Generally to enhance engine power, TCI diesel engine is put to practically use turbo-charged intercoler in order to increase boost efficiency which is cooled boost air. As results of considering the factors of the intake port of swirl ratio 2.25, compression ratio 17.5, re-entrant 8.5$^{\circ}$ combustion bowl, nozzle hole diameter ${\Phi}$0.33*3+${\Phi}$0.35*2, nozzle protrusion 3.18mm, injection timing BTDC 12$^{\circ}$CA and turbo charger (compressor 0.6A/R+46Trim, turbine 1.0A/R+57Trim) is the best in the full range of operating in the engine performance and the exhaust characteristics of NO$\_$x/ concentration. Therefore their factors are appropriated as intake system, injection and turbocharger system.

• The Journal of Pediatrics of Korean Medicine
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• v.29 no.3
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• pp.12-20
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• 2015

Objectives : The purpose of this study was to investigate the relationships between mother's and child's temper and parenting stress. Methods : One hundred twenty healthy mothers (above 20 yrs old) who has a school-aged child (7-11 yrs old) participated after informed consent. The temperament of the children was analyzed by the Junior Temperament and Character Inventory 7-11 (JTCI 7-11) by their mothers. The temperament of the mothers was analyzed by the Temperament and Character Inventory-Revised Short (TCI-RS) and the mother's parenting stress was analyzed by the Korean Parenting Stress Index (K-PSI). The relationships between mothers' and child's temperament and parenting stress were assessed using the Pearson correlation coefficient and multiple regression test. Results : There were significant correlations between maternal temperaments and child's temperaments and maternal parenting stress. There was a positive correlation between mother's harm avoidance characteristic, child's novelty seeking degree and parenting stress. On the other hand, there was a negative correlation between child's persistence and parenting stress. In addition, interactions between child and mother temperament dimensions predicted higher levels of parenting stress. Parenting stress was higher in the group of high mother's harm avoidance with child's high novelty seeking and high mother's harm avoidance with low child's persistence. Conclusions : These results are showing that there are significant relationships between mother and child temperament and parenting stress in mothers with school-aged children.

• Journal of the Korea Convergence Society
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• v.11 no.2
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• pp.297-307
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• 2020

This study focused on the problem behavior after drinking, and examined the effects of temperament of adult drinker on offensive behavior and analyzed the sequential mediating effects of aggression and drinking behavior. To this purpose, 299 subjects were assessed through the Temperament and Character Inventory(TCI)-for adults, Korean Aggression Questionnaire, and Korean Alcohol Use Disorder diagnosis. As the results, 'Novelty seeking' had the highest level of explanation for aggression. In the relationship between 'Novelty seeking' and offensive behavior, mediating effect of aggression and drinking behavior were significant. In its course, sequential mediating effect of both was shown as complete mediation. This result implies that the aggression and drinking behavior were the factors of connecting 'Novelty seeking' and offensive behavior, and the characteristic of 'Novelty seeking' does not have direct influence on offensive behavior but only through aggression and offensive behavior that it has such effect.

• Journal of The Korean Dental Society of Anesthesiology
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• v.14 no.3
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• pp.167-172
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• 2014

Background: Propofol is the most commonly used anesthetic for sedation and target-controlled infusion (TCI) is useful for dental treatment. However, it is important to assess and maintain an adequate depth of sedation in patients with severe intellectual disabilities Therefore, in this study we aimed to evaluate the adequate propofol target concentration for dental treatment in severely intellectually disabled patients. Methods: We undertook retrospective review of the sedation records of severely intellectually disabled patients who underwent dental treatment under TCI propofol sedation from September 2011 to April 2012. We evaluated the initial target concentration, stabilized concentration of propofol and monitored vital signs, including BIS score using sedation records. Results: Total 20 patients (10 male and 10 female patients) were included in the study. Every participant was severely intellectually disabled. The mean sedation duration was $70{\pm}16$ (45-100) minutes. The initial propofol target concentration infusion amount was $2.7{\pm}0.45$ (2.0-3.0) mcg/ml. The propofol effect site concentration (Ce) was $2.6{\pm}0.7$ (1.0-4.0) mcg/ml. The average value of BIS was $52.6{\pm}13$ (28-81). During the treatment period, there were no severe complications. Conclusions: The average propofol Ce for deep sedation without any complications in intellectually disabled patients was 2.6 mcg/ml.

• Journal of Oriental Neuropsychiatry
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• v.23 no.1
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• pp.83-92
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• 2012

Objectives: The purpose of this study was to examine the psychological factors of Sasang constitutions which are classified by QSCC II(Questionnaire for Sasang Constitution Classification II) using major personality tests which are based on western psychological theory. Methods: 151 college students completed the MMPI-2, MBTI, NEO-PI-R, TCI-RS, and QSCC II. The data were analyzed by ANOVA and post hoc testing to find which personality scale significantly differentiated each Sasang constitution style. Results: MMPI-2, scale 2(D), 5(Mf), 7(Pt), 0(Si) and introversion scale(INTR) showed significant differences between Soeumin and Soyangin. Also, on the dimension of introversion-extraversion in MBTI, and neuroticism(N) and extraversion(E) in NEO-PI-R, there were differences between Soeumin and the other two constitutions(Soyangin and Taeeumin). Finally, in TCI-RS, there were differences between Soeumin and Soyangin on the scale of novelty seeking(NS) and reward dependence(RD), and with regards to the harm avoidance scale(HA), Soeumin received a higher score than any other constitutions. Conclusions: The analysis demonstrates that the classification of QSCC II is most consistent between Soeumin and Soyangin across 4 major personality tests.

• Journal of Oriental Neuropsychiatry
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• v.21 no.2
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• pp.45-60
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• 2010

Objectives : The aim of this study was to investigate the correlation between the effectiveness of Brief Qigong-based Stress Reduction Program(BQSRP) and personality. Methods : Twenty nine women and nine men from the community with symptoms of distress(mean age 39.4 years, SD=11.4) were randomized into a group receiving a 4-week intervention of BQSRP(n=19) or a waiting-list control group. All subjects completed the temperament and character inventory (TCI) before the intervention. Before and after the intervention period, questionnaires were completed on perceived stress scale(PSS), anxiety, and quality of life. Results : 1. Those who have higher temperament of harm avoidance or lower character of self-directedness showed higher PSS, Hwa-Byung character, Hwa-Byung symptom, STAI and lower WHOQOL-BREF scores. 2. In the BQSRP training group, a correlation analysis demonstrated an association between higher temperament of harm avoidance and greater improvement of perceived stress and an association between lower character of self-directedness and greater improvement of perceived stress. 3. Those who have high Hwa-Byung symptom scores prefer the breathing meditation and there were no differences in effects of BQSRP group by the preference Brief Qigong-based Meditation(BQM) component. Conclusions : These results suggest that a BQSRP training may be effective for those with higher harm avoidance trait and low self-directedness.

• The Korean Journal of Pain
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• v.22 no.1
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• pp.39-46
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• 2009

Background: Ketamine has an indirect sympathetic stimulation effect. We investigated heart rate variability (HRV) as a marker of cardiac autonomic function after a target controlled infusion (TCI) of ketamine with a plasma concentration of 30 or 60 ng/ml. Methods: In 20 adult volunteers, the mean of the R wave to the adjacent R wave interval (RRI), the range of RRI, the root mean square successive difference of intervals (RMSSD), the total power, the low frequency (LF, 0.04-0.15 Hz) power, the high frequency (HF, 0.15-0.4 Hz) power, the normal unit HF (nuHF), the normal unit LF (nuLF), the LF/HF ratio and the SD1 and the SD2 in the Poincare plot were measured before and after a TCI of ketamine. We observed for any psychedelic symptoms or sedation. Results: There were no differences in the mean and range of the RRI, RMSSD, total power, LF power, HF power, nuHF, nuLF, LF/HF ratio, SD1 and SD2 between before and after ketamine administration. The OAA/S score was higher and there were more psychedelic symptoms with a 60 ng/ml plasma concentration than with a 30 ng/ml plasma concentration. Conclusions: This study did not show any effect of a low plasma concentration of ketamine on the autonomic nervous system.

• Journal of Conservation Science
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• v.30 no.3
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• pp.287-298
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• 2014

This study investigates the material properties of the traditional bricks used in the royal tomb of King Muryeong. Compressive strengths, thermal conductivities, absorptance and the rate of residual moisture are measured by non-destructive experiments. Compressive strength of the traditional bricks is estimated by using the ultrasonic wave velocity and the absorptance. Based on the experimental results, the predicted compressive strengths using the ultrasonic wave velocity are unsuitable for the traditional bricks due to the rough surface and thickness variation of the specimens. The strengths using the absorptance are more suitable than those using the velocity because the predicted average strengths (28.69 MPa ~ 33.19 MPa) are close to building materials like normal strength concrete. In addition, the methods using the absorptance are not influenced by surface and thickness conditions of the specimens. The average thermal conductivities of the bricks measured by using Mathis TCi are close to those of soils (1.58 W/mK). The absorptance and the rate of residual moisture of the bricks are 1.6 % ~ 15 %, 0 % ~ 0.7 %, respectively.

• Journal of Korea Port Economic Association
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• v.32 no.2
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• pp.91-103
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• 2016

The purpose of this study is to analyze the efficiency and productivity of domestic trucking transportation companies using DEA-CCR, BCC, and Malmquist indexes. Here, we analyze the top 14 domestic trucking transportation companies, based on cargo volume. The number of freight agents, trucks, and assets are used as input variables, and cargo volumes and sales are used as output variables. The efficiency of trucking transportation companies is examined using a DEA approach, and Malmquist indexes are applied to analyze productivity. According to the DEA results, the efficiency levels of the CCR, BCC, and scales for three companies (DMU 4, 5, and 10) are 1, indicating that these companies are operated efficiently. At the same time, the Malmquist indexes show that all companies have values smaller than 1, except for the period 2012-2013, indicating that their productivity decreased. Furthermore, the TECI indexes were all larger than 1, except for the period 2012-2013, indicating that the companies are efficient. Lastly, all TCI indexes are smaller than 1, except for the period 2012-2013, indicating regressing trends.