• Journal of Veterinary Clinics
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• v.28 no.1
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• pp.179-182
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• 2011

Two day-old male and 1 month-old female Hanwoo calves presented to Chonbuk Animal Medical Center in Chonbuk National University. Two calves were stepped by mother cow and had right (2 day-old male) and left (1 month-old female) forelimb lameness. The male calf was diagnosed as right radius-ulnar fracture through physical and radiographic examination. The other female calf was diagnosed as left third and fourth metacarpal bone fracture by the same examinations as male calf. Acrylic frame external fixator was used to reduce the fractures. Arcrylic frame external fixator in two calves lasted for 5~6 weeks. After removing the acrylic frame external fixator, radiographic evaluation and physical examination were performed. Fractured radius-ulnar and metacarpal bones were unionized and the calves were able to stand and bear weight. In these two calves, application of acrylic frame external fixator in calf fracture was effective. Acrylic frame external fixator should be considered for the repair of radius-ulnar and metacarpal bone fracture in calf.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.22 no.3_1spc
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• pp.573-579
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• 2013

Once-through helically coiled steam generator tubes subjected to external pressure are of interest because of their application to advanced small- and medium-sized integral reactors, in which a primary coolant with a relatively higher pressure flows outside the tubes, while secondary water with a relatively lower pressure flows inside the tubes. Another notable point is that the values of the mean radius to thickness ratio of these steam generator tubes are very small, which means that a thick-walled cylinder is employed for these steam generator tubes. In the present paper, the maximum allowable pressure of helically coiled and thick-walled steam generator tubes with through-wall cracks under external pressure is investigated based on a detailed nonlinear three-dimensional finite element analysis. In terms of the crack orientation, either circumferential or axial through-wall cracks are considered. In particular, in order to quantify the effect of the crack location on the maximum external pressure, these cracks are assumed to be located in the intrados, extrados, and flank of helically coiled cylinders. Moreover, an evaluation is also made of how the maximum external pressure is affected by the ovality, which might be inherently induced during the tube coiling process used to fabricate the helically coiled steam generator tubes.

• Journal of Korean society of Dental Hygiene
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• v.11 no.3
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• pp.313-323
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• 2011

Objectives : The purpose of this study was to examine effect of attribution disposition and self-efficacy on test anxiety in selected college students who major in dental hygiene. This study provides basic data to develop a program for dental hygiene students to reduce test anxiety. Methods : 328 students from A college in Kyungnam, B college in Chunnam and C university in Chungnam who majored in dental hygiene were asked to answer the self-efficacy scale, attribution disposition and test anxiety scale in November and December. 2008. Total of 311 copies were analyzed. Using SPSS 15.0, correlation analysis was conducted and structural model was verified using AMOS 7.0. Evaluation of mediated effect of attribution disposition in suggested structural model was assessed using Sobel verification. Results : 1. Looking at the correlation among self-efficacy, attribution disposition and test anxiety. Self-efficacy had negative relation with external attribution disposition and test anxiety. External attribution disposition had positive relation with test anxiety. 2. Path coefficient from self-efficacy to internal attribution disposition was significant positively and path coefficient from self-efficacy to external attribution disposition was significant negatively. However, the path coefficient from self-efficacy to test anxiety was insignificant. 3. Path coefficient from external attribution disposition to self-efficacy was positively significant. However, the path coefficient from internal attribution disposition to self-efficacy was not significant statistically. 4. In structural model among attribution disposition, test anxiety and self-efficacy, indirect effect of external attribution dispositions was significant statistically. The students with higher self-efficacy showed lower external attribution disposition, the students with lower external attribution disposition showed lower test anxiety. Conclusions : To reduce test anxiety, educators should find a strategy that can improve students' self-efficacy and change their attribution disposition.

• Journal of Aerospace System Engineering
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• v.16 no.3
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• pp.99-104
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• 2022

Aircraft pylon connects the engine or external stores to the main wing, and transfers the load acting on the pylon to the main structure of the aircraft. In particular, it should perform the function of separating the external store mounted on the pylon in case of emergency or mission performance. At this time, if the separation of the external store is not performed properly due to peripheral air flow or functional problems during the separation process of the external store, it may seriously impact the survivability of the aircraft. For this reason, to apply an external attachment to an aircraft, it is necessary to prove the stability of the external attachment in the separation situation in advance. In this paper, we present the result of the ground separation test performed to confirm that the external fuel tank, which is an external attachment, can be safely separated from the pylon. As a result of the test, the separation movement of the external fuel tank was measured with a high-speed camera, and the stability of the separation of the external fuel tank from the pylon were confirmed through the ground separation test. Additionally, the test result provides basic data for the stability evaluation of the separation of external attachments in actual aircraft.

• Journal of the Korea Safety Management & Science
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• v.6 no.2
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• pp.127-139
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• 2004

Web-based services have fundamentally confidential problems due to characteristics of internet environment such as anonymity. These problems are serious obstacles to grow the web-based services. The security and confidence of web-based services rely on both service provider and users' opinion. But the former has difficulty in trusting the service provider and the latter takes too long time to propagete all users after converging their opinion. Therefore it is necessary to establish the objective and confidential evaluation and certification program for web-based service. In this paper, the internal and external web-based services evaluation and certification programs are compared and analyzed. The critical factors and evaluation methodology for secure and confidential web-based service are identified. Finally, this paper provides the improvement and strategy for web-based services evaluation and certification program.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.356-373
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• 2017

The purpose of this study is to empirically analyze whether performance-oriented remuneration systems in public thermal power generation companies substantially induces organizational commitment of employees, and contributes to organizational performance. According to the study, adequacy of salary and individual work evaluation have significant effects on organizational commitment, whereas external and internal evaluations for pay-for-performance remuneration systems do not have a significant effect. Annual salary for performance and pay-for-performance systems have a significant influence on organizational performance. In addition, because annual salary and individual work evaluation of the performance-oriented remuneration system have significant effects on both the indirect effect, through organizational commitment, as well as the direct effect on organizational performance, there exists a partially mediated effect on organizational commitment. Conversely, because external and internal evaluations do not significantly affect organizational commitment, there is no means of verifying the mediating effect. Studies suggest that a fair annual salary system for performance employed in conjunction with a pay-for-performance system will provide positive impacts on organizational performance and employee loyalty.

• Journal of the Korean Society of Clothing and Textiles
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• v.33 no.3
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• pp.420-432
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• 2009

The purpose of this study is to survey the present women's golf windbreaker market to develop the trendy product with supplementing design and functionality by grasping the inconvenient part through the result of the questionnaire. According to the questionnaire, 38.1% said that the armhole is the most inconvenient part by tightfitting. Therefore, a mobility of wearer was enhanced by giving shirring detail to the armhole for flexibility through inserting the elastic band with a regular interval around armhole in the design1. The swing movement was allowed to be convenient by attaching knit to the side panel. And, the sleeves were designed in the detachable form so those are allowed to be produced in two kinds such as long sleeves and short sleeves. In the design2, a zipper was inserted from the neckline to the armhole so it is designed a detachable bolero. Furthermore, it was designed to be possible to wear two different way as a jumper style and a vest style. Given wearing a vest, the sleeve part was patched knit, thereby having enhanced activity. The design1 and the design2 evaluated an objective assessment and subjective assessment. Assessment group consists of 5 subject groups and 10 expert groups to evaluate external appearance and movement adaptability. In the external appearance evaluation, the design1 obtained the better evaluation than design2. In the movement adaptability evaluation, the design1 obtained the better evaluation than the design2 for all of the items except the wrist area. In the group of professionals, the design1 obtained the better evaluation than the design2 for all of the items except the bottom area.

• Proceedings of the Korean Society for Information Management Conference
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• 2002.11a
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• pp.23-65
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• 2002

This study is to consider varying factors of internal/external informational and operational environments in libraries, and develop a new evaluation indicators for university libraries in digital environments. In order to do this research, the previous works have been investigated, and the Delphi study and our own analysis have been performed. The main research results are as follows. First, the results through the Delphi method that was to adopted to verify evaluation items and indicators determined by the literature review show that the repressed values for each evaluation category is greater than 3.00. overall average is 4.02. and standard deviation is ranged from 0.40 to 0.62 for each category. This means that the evaluation indicators are valid. Second, the factor analysis was performed to verify the construct validity of evaluation indicators. As a result. the cumulative variance of evaluation indicators consisting of 11 dimensions per factor is 72.733%. In turn, this result shows that the validity of these indicators is very reliable. Third, t-test and one way ANOVA are performed within significance probability 0.05 in order to verify differences in each librarians point of views for the degree of importance in evaluation indicators. The results show that these evaluation indicators are verified to be appropriate since there is no significant difference. Based on the Delphi study and our own analysis. we developed a new evaluation indicators that consists of 7 evaluation categories, 35 evaluation items, and 92 evaluation indicators.

• Nuclear Engineering and Technology
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• v.52 no.9
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• pp.2085-2091
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• 2020

The license for Kori-1, the first commercial reactor in Busan, Korea, was terminated in June 2017; therefore, preparations are being made for its decommissioning. Because the radioactivity of Bio-shield varies greatly throughout the structure, the doses received by the workers depend on the location, order, and duration of dismantling operations. Thus, a model for evaluating the worker external dose during the dismantling of the Kori-1 bio-shield was developed, and work scenarios for dose assessment were designed. The Dose evaluation code VISIPLAN was used for dose assessment. The dose rate around the bio-shield was evaluated and the level of exposure to the operator was evaluated according to the work scenario. The maximum annual external dose was calculated as 746.86 mSv for a diamond wire saw operator under dry cutting conditions, indicating that appropriate protective measures, such as changing dismantling sequence, remote monitoring, shield installation, and adjustment of work team are necessary for the safe dismantling of the bio-shield. Through these protective measures, it was found that the worker's dose could be below the dose limit.

• Journal of the Korean housing association
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• v.10 no.2
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• pp.203-212
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• 1999

The purpose of this study is to evaluate the Korean residents' subjective opinion of the noise on the lowrise multifamily house in America. The results of this study can be applied for the prevention of noise when planning cities, roads, and multifamily houses in Korea. The subjects of this study are three kinds of multifamily houses and their 124 Korean residents in Athens, America. The results of this study are as follows. The Korean residents felt the noise from lawn mowers and the sound of filter fan of air conditioners were higher than all the other external noise. They were disturbed a little by the external noise. The air borne sound was recognized a little by Korean residents but they only felt moderate sound of building services and household equipment from the solid borne sound of the internal noise. They suffered worse from external noise in the summer and they felt worse from 8～12 o'clock due to external noise and 20～24 o'clock due to internal noise. The Korean residents liked the sound of birds or insects, the sound of cars and trains. However many Korean people in Athens disliked the sounds of birds or insects and lawn mowers more than these sounds in Korea. The Korean residents who were living in the apartment houses felt better than those in the other multifamily houses.