• Journal of the Korean Society for Railway
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• v.19 no.3
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• pp.363-372
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• 2016

This study identifies influence factors for Korean railway export and analyzes the importance and competitiveness of the factors. This study also suggests policy directions for each factor and analyzes the current situation of the Korean railway industry. All influence factors identified in this study turned out to have high levels of importance. Influence factors with higher importance levels for each field are as follows: man-power/experience and skill/technology in the engineering field; price, information and man-power/experience in the construction field; and information, technology, and price in the manufacturing field. However, the level of competitiveness of the factors turned out to be low. This study also suggested policy directions for each influence factor: overall, they turned out to have high levels of importance. Policy directions with high importance for each field are as follows: strengthening overseas' human network, training/educating experts for overseas projects, and accumulating experiences through Official Development Assistance projects in the fields of engineering and construction; and cost reduction and strategical cooperation with foreign companies in the manufacturing field. However, interviewees' satisfaction levels for each policy area turned out to be low. Finally, policy measures for Korean railway export for each influence factor were suggested.

• Journal of Dental Rehabilitation and Applied Science
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• v.20 no.2
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• pp.109-120
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• 2004

INTRODUCTION: The build-up method has been used for application of porcelain powder on the metal framework to make final tooth shape conventionally. This method takes time and need skill to mimic final shade and shape of porcelain fused to metal crown. The purpose of this study was to develop standard shape and shade laminating porcelain forms to reduce build-up time. METHODS: To make tooth form porcelain paste, several liquid organic compounds were added to conventional feldspathic porcelain. The amount of additives and rheologic property were tested to find out best composition. Comparison of mixing methods to reduced porosity, proper heating schedule, and measurement of shrinkage amount and residual organic materials were performed to set-up standard procedures. Finally, biaxial flexural strength and color of preformed laminated paste porcelain were compared with those of porcelain which fabricated by the conventional build-up method. RESULTS: There was no significant difference in physical properties and color stability between two fabrication methods after various testing methods. Conclusion: This new build-up method can be applied to fabricate the PFM crown and bridge without any loss of strength and optical properties.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.4
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• pp.1400-1418
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• 2020

In the development of commercial promotion, chatbot is known as one of significant skill by application of natural language processing (NLP). Conventional design methods are using bag-of-words model (BOW) alone based on Google database and other online corpus. For one thing, in the bag-of-words model, the vectors are Irrelevant to one another. Even though this method is friendly to discrete features, it is not conducive to the machine to understand continuous statements due to the loss of the connection between words in the encoded word vector. For other thing, existing methods are used to test in state-of-the-art online corpus but it is hard to apply in real applications such as telemarketing data. In this paper, we propose an improved chatbot design way using hybrid bag-of-words model and skip-gram model based on the real telemarketing data. Specifically, we first collect the real data in the telemarketing field and perform data cleaning and data classification on the constructed corpus. Second, the word representation is adopted hybrid bag-of-words model and skip-gram model. The skip-gram model maps synonyms in the vicinity of vector space. The correlation between words is expressed, so the amount of information contained in the word vector is increased, making up for the shortcomings caused by using bag-of-words model alone. Third, we use the term frequency-inverse document frequency (TF-IDF) weighting method to improve the weight of key words, then output the final word expression. At last, the answer is produced using hybrid retrieval model and generate model. The retrieval model can accurately answer questions in the field. The generate model can supplement the question of answering the open domain, in which the answer to the final reply is completed by long-short term memory (LSTM) training and prediction. Experimental results show which the hybrid word vector expression model can improve the accuracy of the response and the whole system can communicate with humans.

• Korean Journal of Health Education and Promotion
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• v.16 no.1
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• pp.83-100
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• 1999

Modern technology has lessened the physical demand of every activities. Thus, physical inactivity has led to a rise in ‘Hypokinetic diseases’. The prefix, hypo, means lack of and kinetic refers to movement. Individuals who do not exercise regularly are at greater risk of developing hypokinetic diseases such as coronary heart disease, hypertension, hyperlipidemia, obesity, musculoskeletal disease. Systematic exercise program defenses development of hypokinetic diseases. Exercise program bases on basic physical fitness test. The physical fitness evaluation is used to degree of Wellness of the individuals. It includes the evaluation of Health-Related Physical Fitness -musclular strength, muscular endurance, flexibility, cardiorespiratory endurance, body composition - and skill or sports related fitness -agility, balance, coordination, reaction time, speed. In present study, the authors investigated health-related physical fitness test result and questionnaire for 133 male and 71 female from Jannuary 16 to March 15, 1997. The purpose of this study is to observe relationship health related physical fitness and self-perceived health status. The results are as follows. 1. There were statistically significant differences in BMI, grip strength, back strength, muscular endurance, cardiorespiratory endurance, and flexibility between male and female subjects. Flexibility is higher in female than male subject, but Others are higher in male than female subjects. 2. There were statistically significant differences in grip strength, muscular endurance between 30s, 40s, and 50s group In both gender subjects, and In cardiorespiratoryendurance between the groups especially in Female subjects. 3. For male subjects, flexibilitywas measured lower in group who classified low level in self-perceived health status than group of others. Also, for female, subjects, Muscular endurance ＆ flexibility were measured. 4. It was shown that grip strength, back strength, and muscular endurance were significantly lower in group who have chronic diseases than normal group for Male subjects. But, For female subjects, all the component were statistically insignificant results between normal and disease group. 5. Both male and female subjects, there were Positive correlation among grip strength, back strength, muscular endurance, cardiorespiratory endurance, and flexibility but, negative correlation for age. Therefore, health-related physical fitness is very important component for Heath Promotion ＆ Wellness. Physical Fitness test is valuable test in health evaluation, health management and health promotion, so available for hospital, sports center, community health center, industrial field, school etc.

• Research in Community and Public Health Nursing
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• v.10 no.2
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• pp.275-290
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• 1999

The Objectives of this study were to identify family nursing phenomena at the community in Korea and to contribute to build up family domain of International Classification for Nursing Practice. The method of this study was used retrospective one among three methods to develop ICNP during the period from April 1997 to June 1999. The procedure was to choose nursing phenomena using preliminary terms(stepl) from the reports on family nursing care of the nursing students of 5 junior colleges of nursing and 5 colleges of nursing. The study group members identified 3 common family nursing phenomena with 5 characteristics related to each phenomenon. In order to consensus the appropriate characteristics of a phenomenon(step2), 17 study group members had regrouped nursing phenomena and scored its characteristics 5 times. The essential characteristics of each family phenomenon were selected above 3.5 mean score from related characteristics(step 3). Finally, 17 phenomena were named preferred terms such as following, that was selected after investigated preliminary terms(step4). Family nursing phenomena in Korea are named as Lack of family interaction in community. Social isolation. Lack of social support system in community. Disturbance in parent role, Disturbance in marital role, Dissatisfaction of sexual life, Disturbance in family communication, Inappropriate family coping, Lack of family intimacy, Inappropriate family power structure, Family violence. Unhealthy life style. Deficit of financial management skill and support. Inadequate care a sick member. Insecure safety and hygiene in neighborhood, Inadequate home-sanitation. Inadequate home-making. Family nursing phenomena in Korea were partially confirmed family architecture of ICNP, Beta version. by this study. Further study on Family nursing phenomena in Korea will be required to support evidence through literature review of nursing classifications or field studies.

• The Korean Nurse
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• v.31 no.4
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• pp.62-76
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• 1992

The intent of chis descriptive study is to investigale lhe patients perceived effect and expectance of activity therapy. The subjects for this study were 56 patients from the psychiatric ward in Severance Hospital. The data were collected during Lhe period from June 1, 1991 to January 18, 1992. The effect and expectance of the activity therapy was measured using a questionnaire developed by this study's investigators. The date were analyzed by descriptive statistics, t-test ancl one-way ANOVA, using the SPSS program. The results of this study can ue summarized as following ; 1. For motivatiorc for the accivity therapy, the response range was from 64.;] % to 89.3 %, that is, it showed a relatively positive response. 2. For the degree of improvement according to the nurse's method in the activity therapy, it was shown that the nurses need professional skill and meeting after activity therapy. 3. For the relevance of the nurse in the activity therapy, 90 % of the subjects had a positive answer for all of the activity therapy except the painting therapy. 4. For the perceived effect of the activity therapy, the following results were obtained. 1) 92% of the subjects had a positive response to the dance therapy, that is-I am vigorous physically. 2) 90 % of the subjects had a positive response to the reading therapy, that is-I acquire good ideas and instruction. 3) 98.1 % of the subjects had a positive response to the recreation therapy, that is-I am joyful. 4) 88.9% of the subjects had a posilive response to the writing therapy, that is-I am interested and become acquainted with other patients. 5) 86.8 % of tbe subjects had a positive response to the occupation therapy, that is-I am happy when I work. 6) 92.6 % of the subjeccs had a positive response to lhe painting therapy, that is-I can express myself in painting. 7) 87.3% of the subjects had a positive response to the musie therapy, that is-I am comforted. 5. For the expectance related to the activity therapy, 97.1 % the subjects had the most postive response to the music therapy which is a pleasant comfortable time. From the above-mentioned findings, it is suggested that psychiatric nurses need to development systematic and professional group activity therapy, and know the patient premorbid hobbies, interests and occupations.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.8
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• pp.3421-3429
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• 2011

This is an exploratory study intended to clarify any mutually influential relationship among the political skills, social network and entrepreneurial performance of SMEs entrepreneurs who are known to have the most important influence upon the business performance. The results of this study show that as entrepreneur's social competence, political skills have significant influence on both social network and entrepreneurial performance, and that only some sub-factors of social network have significant influence on entrepreneurial performance. Especially, it was found that the source of weak ties mediates completely political skills and entrepreneurial performance. The above-mentioned results are meaningful in the light of considering any relationship between the capabilities and performance of SMEs entrepreneurs who have critical influence upon performance creation, and also clarifying concretely the bridging role of entrepreneur's social network between his/her social competence, or political skills and entrepreneurial performance. In addition, it is considered that this study has made a theoretical contribution in the light of introducing a concrete and new antecedent variable of political skills and establishing the role of social network, as well as a practical contribution in the light of presenting the real-world information on development of entrepreneur's competence which corresponds to a preparatory stage for performance creation.

• Atmosphere
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• v.24 no.3
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• pp.283-301
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• 2014

In 2010, only 14 tropical cyclones (TCs) were generated over the western North Pacific (WNP), which was the smallest since 1951. This study summarizes characteristics of TCs generated in 2010 over the WNP and investigates the causes of the record-breaking TC genesis. A long-term variation of TC activity in the WNP and verification of official track forecast in 2010 are also examined. Monthly tropical sea surface temperature (SST) anomaly data reveal that El Ni$\tilde{n}$o/Southern Oscillation (ENSO) event in 2010 was shifted from El Ni$\tilde{n}$o to La Ni$\tilde{n}$a in June and the La Ni$\tilde{n}$a event was strong and continued to the end of the year. We found that these tropical environments leaded to unfavorable conditions for TC formation at main TC development area prior to May and at tropics east of $140^{\circ}E$ during summer mostly due to low SST, weak convection, and strong vertical wind shear in those areas. The similar ENSO event (in shifting time and La Ni$\tilde{n}$a intensity) also occurred in 1998, which was the second smallest TC genesis year (16 TCs) since 1951. The common point of the two years suggests that the ENSO episode shifting from El Ni$\tilde{n}$o to strong La Ni$\tilde{n}$a in summer leads to extremely low TC genesis during La Ni$\tilde{n}$a although more samples are needed for confidence. In 2010, three TCs, DIANMU (1004), KOMPASU (1007) and MALOU (1009), influenced the Korean Peninsula (KP) in spite of low total TC genesis. These TCs were all generated at high latitude above $20^{\circ}N$ and arrived over the KP in short time. Among them, KOMPASU (1007) brought the most serious damage to the KP due to strong wind. For 14 TCs in 2010, mean official track forecast error of the Korea Meteorological Administration (KMA) for 48 hours was 215 km, which was the highest among other foreign agencies although the errors are generally decreasing for last 10 years, suggesting that more efforts are needed to improve the forecast skill.

• The Journal of the Korea Contents Association
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• v.17 no.11
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• pp.423-434
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• 2017

This study is a descriptive survey research to investigate the effect of communication skills of college students on interpersonal satisfaction and subjective happiness. Data were collected using structured questionnaires from 222 students attending two universities located in C and S cities between June 1 and June 10, 2016, and were analyzed using t-test, One-way ANOVA, $Scheff{\acute{e}}$ test, Pearson's correlation coefficient, and hierarchical multiple regression, etc. The results of the study are as follows. The communication skills of the subjects were found to be 2.13 out of 1~5 points, and it was found that there was a significant difference according to grade, perceived home economy level, and leisure activities. Second, communication skills showed a positive correlation with interpersonal satisfaction and subjective happiness. Third, in relation to interpersonal satisfaction, the explanatory power of sex, grade, academic achievement, perceived family economic level and leisure activity was 26.7%, and communication skills further explained 18.4% of interpersonal satisfaction. Fourth, in relation to subjective happiness, the explanatory power of subjective gender, academic achievement, perceived family economic level and leisure activity was 33.0%, and communication skills further explained only 0.3% of subjective happiness. The results of this study suggest that communication-related education can be used as a major intervention strategy in the development of programs to improve interpersonal satisfaction and happiness of college students.

• Journal of Yeungnam Medical Science
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• v.10 no.1
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• pp.197-211
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• 1993

Recently, the Supracondyle fracture of the femur is so severe and comminuted that it is difficult to treat open reduction and rigid fixation sufficiently due to violent traffic accident and external forces. The associated injuries are accompanied variously. So complications of the supracondyle fractures including joint stiffness, delayed union, infection are serious. However development of internal implant and operation skill result in relatively satisfactory function than conservative management. The authors reviewed 20 cases of the supracondyle fracture of the femur treated at Yeungnam University Hospital from 1989, Dec. To 1992, Jan. The results were as follows : 1. The male was common(70%). The 2nd-4th decade was most(87%). 2. The most common cause of injuries was traffic accident. The rate of open fracture was 35%, most of it was traffic accident. 3. According to the ASIF group classification. 4 cases were type A, 4 in type B, 12 in type C (10 in type $C_2$&$C_3$). 4. Accompanied injuries included multiple fractures in 9 cases and femoral artery injury in 1 case. 5. Among the 20 cases, conservative treatment was done in 5 cases and operative treatment was done in 15 cases. 6. Functional results (by Schatzker criteria) were as follows. The satisfactory results were achieved in 40% of cases in conservative treatment and 67% in operative treatment. 7. The average time of partial weight bearing was 15 weeks. 8. Complications were knee stiffness in 6 cases and 4 in delayed union.