• Korean Journal of Fisheries and Aquatic Sciences
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• v.44 no.4
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• pp.352-358
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• 2011

The presence of ISKNV-like viruses in various freshwater ornamental fish species imported from Asia was confirmed by polymerase chain reaction(PCR) amplification of the ATPase(adenosine triphosphatase) gene. Interestingly, molecular analyses of the Open Reading Frame 25(ORF25) region of these isolates based on the ISKNV(Infectious spleen and kidney necrosis virus) genome revealed the presence of various repetitive sequences. ORF25 repeat sequence length had no effect on cumulative mortality of rock bream Oplegnathus fasciatus challenged with tissue homogenates of infected pearl gourami, Trichogaster leeri; silver gourami, Trichogaster microlepis; blue gourami, or Trichogaster trichopterus. All isolates induce cumulative mortalities after 12 days of infection, confirming that ORF25 polymorphism did not affect the pathogenicity of ornamental fish megalocytiviruses that cross infect rock bream, a seawater fish. Also, no statistically significant differences in spleen index or viral copy number in infected tissues was detected between isolates with varying ORF25 repeat sequence lengths. However, further studies are necessary to fully characterize the functional characteristics of these polymorphisms in megalocytivirus disease in ornamental fishes.

• Journal of the Korean Society for Precision Engineering
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• v.23 no.6 s.183
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• pp.166-173
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• 2006

In this study, a probe array has been developed for use in a data storage device that is based on scanning probe microscope (SPM) and MEMS technology. When recording data bits by poling the PZT thin layer and reading them by sensing its piezoresponse, commercial probes of which the tip heights are typically shorter than $3{\mu}m$ raise a problem due to the electrostatic forces occurring between the probe body and the bottom electrode of a medium. In order to reduce this undesirable effect, a poly-silicon probe with a high aspect-ratio tip was fabricated using a molding technique. Poly-silicon probes fabricated by the molding technique have several features. The tip can be protected during the subsequent fabrication processes and have a high aspect ratio. The tip radius can be as small as 15 nm because sharpening oxidation process is allowed. To drive the probe, electrostatic actuation mechanism was employed since the fabrication process and driving/sensing circuit is very simple. The natural frequency and DC sensitivity of a fabricated probe were measured to be 18.75 kHz and 16.7 nm/V, respectively. The step response characteristic was investigated as well. Overshoot behavior in the probe movement was hardly observed because of large squeeze film air damping forces. Therefore, the probe fabricated in this study is considered to be very useful in probe-based data storages since it can stably approach toward the medium and be more robust against external shock.

• Journal of the Korean Institute of Educational Facilities
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• v.18 no.6
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• pp.45-56
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• 2011

This study explored what impacts can be brought to students, teachers, schools, and community by the improvement of physical environment of school spaces. For the purpose, we studied 5 schools (2 elementary and 3 middle schools) who took part in the Happy School Project funded by the Ministry of Culture, Sports, and Tourism in 2008. Ten series of Focus Group Interviews were carried out with a sample of 28 students and 20 teachers who experienced both before and after the school renovation project. The analysis of the interview data revealed that although the project was concerned with a part of school space such as restroom or reading room, it could bring multiple effects such as following: First, the students addressed that they felt "good" about school environment, which led them to feel good about their "schools." This change was found out to bring about more positive attitudes towards a school in general, public manners, peer relationships, emotional well-being, and learning. Second, the teachers became to value more their principals' leadership, being more satisfied with their work environment and more concerned about management of school facilities, and happier with students in terms of teaching and guidance than before. Third, all the 5 schools seem to go through a noticeable change in terms of a school climate and ethos in a more positive and harmonious way. Finally, 'spread', 'promotion', and 'openness' effects were discussed with regard to the relationships between the schools and local community.

• Journal of Korean Library and Information Science Society
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• v.45 no.4
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• pp.365-390
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• 2014

This study intend to find the application methods of the FRBR model about legislation by analyzing a law life cycle from the enactment to the amendment and abolition of legislation and the type of the change after abolition. The legislation is the work as an aggregate entity consisting legal provisions and each provision is also the work. They are in the Whole-to-Part relation. The legislation has a effect by being published in the official gazette, and the updated text or the translated text is not the official version. Even if the name of the legislation is changed, it is treated as the same entity when it is not abolished and the simple rectifying text expressed in the official gazette is also legally valid. The Libraries Act has been replaced by the Libraries Act(old version), the Libraries Promotion Act, the Libraries and Reading Promotion Act and the Libraries Act(new version) in the order named, and it can be bounded into a superwork. For these examples, we provided the application method of FRBR model and suggested the actual application cases regarding Work, Expression, Manifestation and Item which are in Group 1 of FRBR model for the Libraries Act.

• Journal of the Korean Society for information Management
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• v.29 no.2
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• pp.71-92
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• 2012

The purpose of this study is to analyze the effects of organizational communication satisfaction of teacher librarians on the informational and educational service and to draw implications for improvement of the school libraries' educational role. According to the results of the analysis, teacher librarians have preferred informal communication by conversation and face-to-face talk with superiors or co-workers and horizontal communication during their performance. Characteristics of teacher librarians, such as career, gender and school levels, have influential effect on user education, libraryassisted instruction, reading and information literacy instruction. The more teacher librarians felt satisfaction of the informal communication, the more textbook-related reference lists are offered. Horizontal communication have a positive influence on information literacy instruction. However, teacher librarians should utilize cooperative statements, committees and councils and actively participate in those horizontal communication methods to share the vision and aims of school libraries with the larger school community. Teacher librarians also should put more efforts into developing their leadership role and marketing strategies in order to overcome the weaknesses of informal communication.

• Journal of Korean Library and Information Science Society
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• v.46 no.4
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• pp.299-324
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• 2015

This paper is a qualitative single case study and it was conducted for the purpose to explore change in interactive bibliotherapy experience with a middle-aged widowed spouse. A Middle-aged Widowed Spouse was taken as a research partaker. Through this research, we explored partitively the partaker's experience changes by each session during the commencing of interactive bibliotherapy and the partaker's inner/external experience change after the end of session. The result, interactive bibliotherapy facilitated and expressed the reaction of a partaker by its writing skills and reading materials including partaker's own poems. Furthermore, facilitated emotion from material and self-awareness made a partaker understand and accept itself through therapeutical interaction. In addition, those kind of changes appeared inner/external experience in life, and lasted after the end of the session. In this regard, the inner/external change appeared from a partaker means the effect of bibliotherapy, and we can notice that it is a result that facilitated through truthful reaction of counselor and texts.

• Proceedings of the Korean Geotechical Society Conference
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• 2008.03a
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• pp.766-777
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• 2008

Currently in increasing number of urban tunnels with small overburden are excavated according to the principle of the New Austrian Tunneling Method (NATM). Successful design, construction and maintenance of NATM tunnel demands prediction, control and monitoring of ground displacement and support stress high accuracy. A magnetic anisotropy sensor is used for nondestructive measurement of stress on surfaces of a ferromagnetic material, such as steel. The sensor is built on the principle of the magneto-strictive effect in which changes in magnetic permeability due to deformation of a ferromagnetic material is measured in a nondestructive manner, which then can be translated into the absolute values of stresses existing on the surface of the material. This technique was applied to measure stresses of H-beams, used as tunnel support structures, to confirm expected measurement accuracy with reading error of about 10 to 20 MPa, which was confirmed by monitoring strains released during cutting tests The results show that this method could be one of the promising technologies for non-destructive stress measurement for safe construction and maintenance of underground rock structures encountered in civil and mining engineering.

• Proceedings of the Korean Geotechical Society Conference
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• 2010.03a
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• pp.1392-1397
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• 2010

Currently in increasing number of urban tunnels with small overburden are excavated according to the principle of the New Austrian Tunneling Method(NATM). Successful design, construction and maintenance of NATM tunnel demands prediction, control and monitoring of ground displacement and support stress high accuracy. A magnetic anisotropy sensor is used for non-destructive measurement of stress on surfaces of a ferromagnetic material, such as steel. The sensor is built on the principle of the magneto-strictive effect in which changes in magnetic permeability due to deformation of a ferromagnetic material is measured in a non-destructive manner, which then can be translated into the absolute values of stresses existing on the surface of the material. This technique was applied to measure stresses of H-beams, used as tunnel support structures, to confirm expected measurement accuracy with reading error of about 10 to 20MPa, which was confirmed by monitoring strains released during cutting tests The results show that this method could be one of the promising technologies for non-destructive stress measurement for safe construction and maintenance of underground rock structures encountered in civil and mining engineering.

• Korean Journal of Social Welfare
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• v.66 no.3
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• pp.297-319
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• 2014

This research seeks to clarify correlationship between satisfaction of visually impaired, hearing impaired and mentally disabled mothers and their burden of raising their children and whether communication between their children mediates their relationship. This research tries to set a standard performing method to alleviate burden of raising children and devise an effective parenting method. The study was done in cooperation with 13 welfare centers for the disabled in the Seoul area, 23 and performed 300 questionnaires were distributed. Hearing impaired person had answered by themselves, and visually impaired were provided with disability aid, by reading the questionnaire to them. 210 responses were collected, and 187 were used for final analysis. Analysis showed that burden of fostering showed a negative correlation between satisfaction as a mother and availability for communication. Moreover, communication with the children were shown to mediate the satisfaction as a parent and burden of raising the children. Thus, the goal is to reduce the burden of fostering for female disabled and increase their satisfaction as a parent as well as enhancing their communicational skills.

• Journal of the Korean Ceramic Society
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• v.45 no.5
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• pp.276-279
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• 2008

In this research, properties of $N_2$-doped $Sb_2Te_3$ thin film were evaluated using 4-point probe, XRD and AFM. $Sb_2Te_3$ material has faster crystallization rate than $Ge_2Sb_2Te_5$, but sheet resistance difference between amorphous and crystallization state is very low. This low sheet resistance difference decreases sensing margin in reading operation at PRAM device operation. Therefore, in order to overcome this weak point, $N_2$ gas was doped on $Sb_2Te_3$ thin film. Sheet resistance difference between amorphous and crystallized state of $N_2$-doped $Sb_2Te_3$ thin film showed about $10^4$ times higher than Un-doped $Sb_2Te_3$ thin film because of the grain boundary scattering.