• The Journal of Economics, Marketing and Management
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• v.12 no.2
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• pp.11-18
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• 2024

Purpose: The purpose of this study is to suggest the activation plan of the post-construction sales through the results of a survey on the perception of Seoul citizens and experts. Research design, data and methodology: The purpose of this study is to suggest the activation plan of the post-construction sales through the results of a survey on the perception of Seoul citizens and experts. Results: According to a survey of Seoul citizens' perceptions, 76.7% of Seoul citizens were well aware of post-construction sales and recognized that post-construction sales would reduce pre-sale speculation and confusion in the real estate market. Second, 73.6% of Seoul citizens were willing to buy houses through post-construction sales, and third, 79.6% of Seoul citizens recognized that a post-sale system was necessary. Experts' opinions generally responded to the expansion of the introduction of post-construction sales, saying, 'It is necessary for both the public and the private sectors'. Second, while experts say that there are also positive effects, negative effects such as polarization centered on large corporations, an increase in sales prices, and a decrease in housing supply are also concerned. Third, experts responded that 'diversification of financing methods' is the most important task in revitalizing the post-sale system. Conclusions: The policy implications are that it is necessary to mandate the post-construction sales in the long term, and that the quality assurance system needs to be supplemented even if the sale is promoted post-construction sales. In addition, private participation is essential to revitalize the post-construction sales, and government support such as initial financing, low-interest rates, and various financing measures should be sought to expand private participation.

• Journal of the Korean Society for Railway
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• v.9 no.2 s.33
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• pp.160-168
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• 2006

The major objective of this study is to investigate the effects and application of external post-tensioning method far steel plate girder bridge. It analyzed the mechanical behaviors of steel plate girder bridge with applying external post-tensioning on the finite element analysis, field test and laboratory test fur the lateral dynamic characteristics. As a result, the reinforcement of steel plate girder bridge the external post-tensioning method are obviously effective for the lateral dynamic response which is non-reinforced. The analytical and experimental study are carried out to investigate the post-tension force decrease lateral acceleration and deflection on steel plate girder bridge for serviceability. And the external post-tensioning method reduce dynamic maximum displacement(about $10{\sim}24%$), the increase of dynamic safety is predicted by adopting external post-tensioning method. From the dynamic test results of the servicing steel plate girder bridge, it is investigated that the change degree of natural frequency is very low with applying the external post-tensioning method The servicing steel plate girder bridge with external post-tensioning has need of the reasonable reinforcement measures which could be reducing the effect of lateral dynamic behavior that degradation phenomenon of structure by an unusual response characteristic and a drop durability.

• Structural Engineering and Mechanics
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• v.6 no.6
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• pp.693-710
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• 1998

This paper concerns studies on the shape formation of post-tensioned and shaped steel domes. The post-tensioned and shaped steel domes, assembled initially at ground level in an essentially flat condition, are shaped to a curved space form and erected into the final position by means of a post-tensioning technique. Based on previous studies on this shape formation principle, three post-tensioned and shaped steel domes have been constructed. The results of the shape formation tests and finite element analyses are reported in this paper. It is found that the first two test domes did not furnish a part-spherical shape as predicted by finite element analyses, because the movements of some mechanisms were not controlled sufficiently. With a revised post-tensioning method, the third dome obtained the theoretical prediction. The test results of the three post-tensioned and shaped domes have shown that a necessary condition to form a desired space shape from a planar layout with low joint stiffnesses is that the movements of all the existing mechanisms must be effectively controlled as indicated by the finite element analysis. The extent of the maximum elastic deformation of a post-tensioned and shaped steel structure is determined by the strength of the top chords and their joints. However, due to the semi-rigid characteristic of the top chord joints, the finite element analyses cannot give a close prediction for the maximum elastic deformations of the post-tensioned and shaped steel domes. The results of the current studies can be helpful for the design and construction of this type of structure.

• Journal of Oriental Neuropsychiatry
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• v.11 no.2
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• pp.149-154
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• 2000

Objectives:This study was to investigate the post-stroke depression morbidity and to evaluate the post-stroke depression in relation to activities of daily living by using BDI(Beck's Depression Inventory)and MBI(Modified Barthel Index) in 45 patients with stroke. Methods:The subjects of this study were 45 stroke patients who were admittied to the Dong-Seo oriental hospital.The post-stroke depression was determined by using the BDI and the evaluation of activities daily living was measured by using the MBICollected data analysis were completed by using correlation analysis.Results:1. The post-stroke depression morbidity was 30%.2. The post-stroke depression have no significant correlation with activities of daily living skills.Conclusions:This study shows that the post-stroke depression have no significant correlation with impairment in activities of daily living.Advanced studies are required to investigate other factors that influence post-stroke depression and post-stroke depression follow-up studies.

• Journal of the Korean Society of Safety
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• v.31 no.6
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• pp.105-112
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• 2016

The current study examined the relationships between disaster victims' post-trauma risk and posttraumatic growth, and the mediational role of social support for this relationships. In addition, we tested the hypothesis that income status would moderate the relationship between post-trauma risk and subjective well-being. Two hundred disaster victims completed Post-trauma Risk Checklist (PRC), Posttraumatic growth scale, Social support scale and Concise Measure of Subjective Well-Being (COMOSWB) as well as questions about their demographic characteristics. Results showed that those with high post-trauma risk demonstrated significantly higher levels of posttraumatic growth as compared to those with low post-trauma risk and social support partially mediated this relationship. Also, high levels of post-trauma risk predicted low levels of recent subjective well-being. Participants with high income obtained higher subjective well-being than did those with low income among high post-trauma risk groups. Implications for post-trauma risk and posttraumatic growth are discussed.

• Journal of Acupuncture Research
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• v.27 no.2
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• pp.89-95
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• 2010

Objectives : This study was designed to investigate incidence rate, clinical features and treatment of headache followed after acupotomy. And based on that, we study correlating between post acupotomy headache and post-lumbar puncture headache(PLPH). Methods : From September 1st, 2007 to December 31st, 2007, the 73 inpatients who admitted to Daejeon Oriental hospital and underwent acupotomy on lumbar spine and cervical spine etc. more than once were observed. Then 9 inpatients who occurred headache after acupotomy was analyzed according to incidence rate, gender, age, clinical features. Results : We investigated clinical features of post acupotomy headache and made comparative study of post acupotomy headache and PLPH. The average frequency of post acupotomy headache was about 12.3%. The risk factors are undergoing acupotomy on lumbar spine, young age. Gender does not affect the incidence of post acupotomy headache. Patients complain of headache which worsen when the patients is upright and improve after the patients lie back down in a few minutes. Those clinical features are similar to PLPH. Conclusions : Although two type of headache have significant similarities, there is no enough evidence to support this study. In addition, the cause and treatment of post acupotomy headache are still unclear. Thus, based on the above study, more studies have to be investigated.

• The Journal of Advanced Prosthodontics
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• v.6 no.3
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• pp.194-199
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• 2014

PURPOSE. This study evaluated the depth of cure of resin composite cured by light through a translucent fiber post. MATERIALS AND METHODS. The opaque plastic tubes in various lengths of 2, 4, 6, 8, 10, 12, 14 mm. were filled with resin composite in which two different translucent fiber posts were inserted into the center and photo-polymerized for 40 seconds. The degree of conversion of the cured composite at bottom surface were examined using Fourier transform infrared attenuated total reflection spectrometer (FTIR/ATR) at 0.1, 0.5 and 1.0 mm apart from the post surface. RESULTS. The degree of conversion of the 0.1 mm, 0.5 mm, 1.0 mm apart from the post surface was highest at the 2 mm level and continuously decreased when the distance from the light source was increased and drastically decreased when the depth from the top of the post was greater than 4-6 mm. For each level, the highest degree of conversion was at 0.1 mm from the post surface and decreased continuously when the distance apart from the post surface was increased. CONCLUSION. The quantity of light transmission depends on the type of post and the light transmission capability of the post, especially after 4-6 mm depth and the area further apart from the post surface, are insufficient for clinical light activation of resin composite.

• Journal of Korean Clinical Nursing Research
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• v.29 no.1
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• pp.85-94
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• 2023

Purpose: The purpose of this study was to investigate the influencing factors of post-traumatic growth in patients with gastrointestinal cancer. Methods: A cross-sectional study was conducted, enrolling 120 patients with gastrointestinal cancer. Their general characteristics, disease-related characteristics, perceived illness intrusiveness, levels of optimism, social support, and post-traumatic growth were assessed through self-administered questionnaires. The collected data were analyzed using descriptive statistics, independent t-test, oneway ANOVA, Pearson's correlation, and multiple regression analysis. Results: The mean score of post-traumatic growth was 52.74 points(total score of 92 points). Among the subscales of post-traumatic growth, levels of the preciousness of life were the highest, and relating with others was the lowest. The post-traumatic growth was found to be significantly correlated with optimism (r=.48, p<.001), social support (r=.47, p<.001), and depression (r=-.37 p<.001). Factors associated with post-traumatic growth were optimism (β=.36, p<.001), social support (β=.31, p<.001), and depression (β=-.27, p<.001). Conclusion: Given that prevalence of gastrointestinal cancer is increasing in Korea, identifying general, psychological, and social factors affecting post-traumatic growth among this population will be helpful in clinical practice. Integrated strategies to increase optimism and social support and lower depression should be considered to improve the post-traumatic growth of patients with gastrointestinal cancer.

• Proceedings of the Optical Society of Korea Conference
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• 1989.02a
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• pp.143-146
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• 1989

Narrowband bandpass waveguide filters using inducive post obstacles are designed and constructed to have an equal-ripple bandwidth of 50MHz at a center frequency of 9GHz. Both the triple-post and the single-post configurations are realized and compared. The measured results for both filters show good agreement with the theoretical calculations. When the two filters are compared, the performance of the triple-post filter is better than that of the single-post filter.

• The Journal of Advanced Prosthodontics
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• v.9 no.3
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• pp.232-237
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• 2017

Dentists often place post and core buildups on endodontically treated abutments for crown and bridge restorations. This article analyzes the bio-mechanical purposes, advantages and disadvantages of placing a core or a post and core in an endodontically treated tooth and reviews literature on post and core biomechanics. The author assesses the scientific rationale of the claim that the main purpose of a post is to retain a core, or the claim that posts weaken teeth. More likely, the main function of a post is to help prevent the abutment, on which a crown is cemented, from fracturing such that the abutment separates from the tooth root, at a fracture plane that is located approximately and theoretically at the level of the crown (or ferrule) margin. A post essentially improves the ferrule effect that is provided by the partial fixed denture prosthesis. This paper also explores the difference between bio-mechanical failures of crowns caused by lack of retention or excess taper, versus failures due to a sub-optimal ferrule effect in crown and bridge prostheses.