• Land and Housing Review
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• v.3 no.4
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• pp.369-378
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• 2012

In France, there are many forms of organizations based on the intercommunal solidarity for city development and management. The purpose of the collaboration among Communes is to achieve high quality and well-equipped service-delivery system through co-operation of public services needed grand finances : water supply and sewage system and waste disposal system etc. The cooperation among French Communes and its effects, even though these were owing to the existing French local administration system, continued throughout regional co-management and social co-development process. This study suggested some characteristics and implications of the collaborative-style French new-town development and management organizations focused on the EPA, SAN and CA. First, the role of developmental corporation like EPA and its collaborative structure of decision-making are meaningful, because in these ways many related Communes could share a goal of new town development. Second, the way of new town corporation (SAN) is important in the sense of enabling the Communes to collaborate with each others while maintaining autonomy, so those are not simply state-directed objects, which was very difficult in the former French local administration system. Finally, transforming to CA (Communautes d'agglomeration:city community), EPA as an intercommunal corporation is possible to extend its purpose to the domain of regional planning including new town and periphery areas and change its position to a subject which can practice Commune's sustainable development according to stages of city's development and maturity. The most important implication of this study on urban development in Korea is that administrative consultative council or association among local governments and related authorities need to be established and effectively operate because multi-stakeholders could share a goal of urban development and management through that.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.29 no.2
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• pp.201-208
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• 2011

With the increase in the number of smartphone users, precise 3D positional information is required by various applications. The positioning accuracy using civilian single-frequency pseudoranges is at the level of 10 m or so, but most applications these days are asking for a sub-meter level Therefore, instead of an absolute positioning technique, the VRS-based differential approach is applied along with the correction of the double-differenced (DD) residual errors using FKP (Flachen-Korrektur-Parameter). The VRS (Virual Reference Station) is located close to the rover, and the measurements are generated by correcting the geometrical distance to those of the master reference station. Since the unmodeled errors are generally proportional to the length of the baselines, the correction parameters are estimated by fitting a plane to the DD pseudorange errors of the CORS network. The DD positioning accuracy using 24 hours of C/A code measurements provides the RMS errors of 37 cm, 28 cm for latitudinal and longitudinal direction, respectively, and 76 cm for height. The accuracy of the horizontal components is within ${\pm}0.5m$ for about 90% of total epochs, and in particular the biases are significantly decreased to the level of 2-3 cm due to the network-based error modeling. Consequently, it is possible to consistently achieve a sub-meter level accuracy from the single-frequency pseudoranges using the VRS and double-differenced error modeling.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.1
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• pp.456-465
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• 2018

This study was conducted to investigate the relationships among self-efficacy, family support, and self-care performance of gastric cancer surgery patients. The study was conducted from 11 October to 15 November 2013. Data were collected by self-report questionnaires from 121 patients who were diagnosed with stomach cancer and had undergone surgery at D university hospital in B city and were in follow-up care for 3 months to 5 years after surgery. Data were analyzed using SPSS/PC WIN 18.0 to obtain the percentage, average, mean rating, and standard deviation. In addition, t-test, ANOVA, Scheffe's test, Pearson's correlation and stepwise multiple regression were conducted. The degree of self-care performance in research targets showed significant differences by sex (t=-2.25, ｐ=0.027), religion (F=3.67, ｐ=0.028) and profession (F=4.17, ｐ=0.008). Self-care performance was positively correlated (r=0.60, ｐ<0.001) with the degree of specific self-efficacy. There was a significant difference in self-care performance by specific self-efficacy, religion and gender. The total explanatory power was 37.9% and the explanatory power of the degree of specific self-efficacy (${\beta}=0.53$) was greater than that of other factors. Therefore, it is necessary to provide interventions that improve specific self-efficacy to help patients with gastric cancer patients conduct self-care performance, and practical measures should be made with respect to religion and gender.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.3
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• pp.223-231
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• 2017

The purpose of this study was to determine the relationships among sexual attitudes, autonomy, and harassment experience and to find out how each factor affects the sexual attitudes of college students. The subjects were 236 college students in D city. The data were collected from September 3 - 8, in 2015 using a structured questionnaire. The data were analyzed using the SPSS WIN 18.0 program. For data analysis, a Mann-Whitney U-test, Kruskal-Wallis test, Pearson's correlation coefficients, and multiple regression analysis were carried out. The results are as follows. First, the average scores of sexual attitude, sexual autonomy, and sexual harassment experience were 4.01, 1.95, and 0.95 points, respectively. Second, the individual characteristics in sexual attitude were significantly different in gender (U=2124.50, p=0.000) and department (U=5741.00, p=0.026), sexual autonomy were considerably different in gender (U=2529.50, p=0.001) and satisfaction with personal relationships ($X^2=9.46$, p=0.009), and sexual harassment experience were significantly different in the department (U=5604.00, p=0.007). Third, a positive relationship was observed between the sexual attitudes and sexual autonomy (r=0.517, p<0.01). Sexual autonomy was found to influence the sexual attitudes (${\beta}=0.46$, p<.001). These results highlight the need to develop sex education programs in various situations for college students and that sex education should be implemented constantly.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.4
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• pp.403-411
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• 2018

The purpose of this study was to identify the experience of patients with uterine benign neoplasms in response to high-intensity focused ultrasound treatment. The study participants were patients who received high-intensity focused ultrasound treatment after diagnosis of benign uterine neoplasms and were contacted through purposive techniques. Five patients agreed to participate in this study. Data were collected from February, 2018 to May, 2018 at Women's hospital in D city. The interview data were analyzed by the phenomenological analysis method developed by Colaizzi using open-ended questions during in-depth interviews. Three categories emerged from the analysis using Colaizzi's method: 1) Discomfort. 2) Ambivalence. 3) Will and need. These study results contribute to a deeper understanding of the experience of patients with uterine benign neoplasms in response to high-intensity focused ultrasound treatment. Therefore, it should be developed as part of an effective nursing education program to provide evidence-based guidelines and nursing interventions that alleviate health problems in patients receiving high-intensity focused ultrasound treatment and proper nursing understanding of the development of new treatment methods for woman's health.

• Journal of the Earthquake Engineering Society of Korea
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• v.9 no.4 s.44
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• pp.11-18
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• 2005

Inelastic seismic analysis is necessary for the seismic design due to the nonlinear behavior of a structure-soil system, and the importance of the performance based design considering the soil-structure interaction is recognized for the reasonable seismic design. In this study, elastic and inelastic seismic response analyses of a single degree of freedom system on the soft soil layer were peformed considering the nonlinearity of the soil for the 11 weak or moderate, and 5 strong earthquakes scaled to the nominal peak acceleration of 0.075g, 0.15g, 0.2g and 0.3g. Seismic response analyses for the structure-soil system were peformed in one step applying the earthquake motions to the bedrock In the frequency domain, using a pseudo 3-D dynamic analysis software. Study results indicate that it is necessary to consider the nonlinear soil-structure interaction effects and to perform the performance based seismic design for the various soil layers rather than to follow the routine procedures specified in the seismic design codes. Nonlinearity of the soft soil excited with the weak earthquakes also affected significantly to the elastic and inelastic responses due to the nonlinear soil amplification of the earthquake motions, and it was pronounced especially for the elastic ones.

• Journal of Radiation Protection and Research
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• v.37 no.1
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• pp.41-49
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• 2012

The objective of this study is for development of the reference Korean female phantom, HDRK-Woman. The phantom was constructed by adjusting a Korean woman voxel phantom to the Reference Korean data. The Korean woman phantom had been developed based on the high-resolution color slice images obtained from an adult Korean female cadaver. There were a total of 39 organs including the 27 organs specified in ICRP 103 for effective dose calculation. The voxel resolution of the phantom was $1.976{\times}1.976{\times}2.0619\;mm^3$ and the voxel array size is $261{\times}109{\times}825$ in the x, y and z directions. Then, the voxel resolution was changed to $2.0351{\times}2.0351{\times}2.0747\;mm^3$ for adjustment of the height and total bone mass of the phantom to the Reference Korean data. Finally, the internal organs and tissue were adjusted using in-house software program developed for 3D volume adjustment of the organs and tissue. The effective dose values of HDRK phantoms were calculated for broad parallel photon beams using MCNPX Monte Carlo code and compared with those of ICRP phantoms.

• Journal of Korean Tunnelling and Underground Space Association
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• v.8 no.3
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• pp.205-217
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• 2006

Rock and discontinuities are main factors consisting of a rock mass and the physical properties of each factor have direct effects on the mechanical stability of artificial structures in the rock mass. Because physical properties of the rock and discontinuities change a lot according to the size of test materials, a close attention is needed when the physical properties, obtained from laboratory tests, are used for the design of field structures. In this study, change of physical properties of intact materials due to the change of their size are studied. Six kinds of artificial materials including crystal, instead of an intact rock, are adopted for the study to guarantee the homogeneity of specimen materials even with relatively large size. Uniaxial strength and Young's modulus of each artificial material are checked out for a size effect and compared with the predicted values by Buckingham's theorem - dimensional analysis. A numerical analysis using PFC (Particle Flow Code) is also applied and primary factors influencing on the size effect are investigated.

• Journal of radiological science and technology
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• v.40 no.3
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• pp.401-405
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• 2017

The Purpose of this study is to compare the bone marrow density measured by quantitative ultrasonometry (QUS) between men and women. Questionnaires for general characteristics were obtained from 104 participants, and then their both calcaneus was measured by using QUS. Sex differences for bone marrow density (BMD) were analyzed by an Independent t-test using the SPSS 19.0 program. Of 104 participants, women and men were 69(66.3%) and 35(33.7%), respectively. T-value of left calcaneus was high significantly in women than that in men(0.443 vs. 0.031, p=0.161) as well as that of right calcaneus(0.555 vs. 0.049, p=0.093). T-value of right calcaneus was high than that of left calcaneus in women and men (not significant, p>0.05). T-value of both calcaneus was increasing with physical activity. T-value of calcaneus was no statistically significant with age and body mass index. The BMD of women is high significantly more than that of men, and BMD is relation with physical activity.

• Restorative Dentistry and Endodontics
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• v.34 no.1
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• pp.1-7
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• 2009

The purpose of this study was to compare the stress distributions of NiTi rotary instruments based on their cross-sectional geometries of triangular shape-based cross-sectional design, S-shaped cross-sectional design and modified rectangular shape-based one using 3D FE models. NiTi rotary files of S-shaped and modified rectangular design of cross-section such as Mtwo or NRT showed larger stress change while file rotation during simulated shaping. The stress of files with rectangular cross-section design such as Mtwo, NRT was distributed as an intermittent pattern along the long axis of file. On the other hand, the stress of files with triangular cross-section design was distributed continuously. When the residual stresses which could increase the risk of file fatigue fracture were analyzed after their withdrawal. the NRT and Mtwo model also presented higher residual stresses. From this result, it can be inferred that S-shaped and modified rectangular shape-based files were more susceptible to file fracture than the files having triangular shape-based one.