• Journal of Korean Society of Coastal and Ocean Engineers
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• v.6 no.4
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• pp.452-458
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• 1994

The advantage of tide-well system with an intake pipe near the sea floor is that it can record not only tide but also harbour oscillation. tsunami. rapid change of tide height when a storm was causing rapid fluctuations in sea level. Consequently record of harbour oscillation may be extracted from tidal records by removing the predicted tide and then correcting for the attenuation caused by the tide-well system. The response of tide-well with intake pipe to seiche was examined by in situ measurements for Mukho tidal station. The well constant was also computed hydraulically on the basis of the structure of the tide gage system. It has been found that the response coefficient of the Mukho tidal station was 0.01. The tide records can be used for the determination of mean sea levels for surveying purposes. as the response of tide-well system can be estimated.

• Journal of Korean Ophthalmic Optics Society
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• v.19 no.1
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• pp.79-85
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• 2014

Purpose: This study investigated accommodative changes by measuring accommodative response, appearing on the normal and convergence insufficiency Group, by using both eyes open-view auto-refractometer (Nvision-K5001, shin-nippon, Japan). Methods: It carried out objective and subjective refractions, targeting 74 college students (54 males and 20 females) aged between 19 and 29 ($21.59{\pm}2.53$), spherical equivalent OD $-2.28{\pm}2.03$ D, OS $-2.18{\pm}2.01$ D, by measuring accommodative responses at full correction and under correction with plus lens +0.25, +0.50, +0.75 arbitrarily added. Results: In the group of normal and convergence insufficiency, the shorter fixation distances were, the greater accommodative lags showed. The group of convergence insufficiency showed the lesser changes of accommodative response than those of normal. But we found that the convergence insufficiency group had a little larger accommodative amplitude in the total fixation distances. The full correction of convergence insufficiency group and the under correction (+0.50 D) of normal were alike in the accommodative responses. We have also investigated that the correlation between accommodative responses and fixation distances was decreased steeply at the excessive low vision correction. Conclusions: Under correction (+0.50 D) in a near distance is expected to avoid unnecessary accommodative responses, make eyes relaxed and comfortable.

• The Korean Journal of Nuclear Medicine Technology
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• v.13 no.3
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• pp.189-192
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• 2009

Purpose: Autopipetting system is an efficient automated equipment pipetting patient samples and reagents for rapid and accurate test. However, it can cause carryover between high concentration sample and low concentration sample. We evaluated carryover contamination of TECAN freedom Evo 100 autopipetting system. Materials and Method: We studied carryover contamination of $\alpha$-fetoprotein (AFP) and carcinoembryonic antigen (CEA) test on TECAN freedom Evo 100 autopipetting system. Very low concentration control samples were pipetted for comparison to the contaminated very low concentration samples. Then, The contaminated very low concentration samples were pipetted following the high concentration samples were pipetted alternately. The difference of low concentration samples represents carryover. The target value to decide carryover was 1ppm (parts per million). Results: For AFP, the mean values of the uncontaminated control samples and the contaminated samples were less than 0.6 IU/mL (the l imit of detection (LoD)). Carryover did not occur even though the high concentration sample which value was 650000 IU/mL. For CEA, the values of the low concentration control samples and the contaminated samples were less than 0.2 ng/mL (LoD). Carryover did not occur even though the high concentration sample which value was 65,000 ng/mL. Conclusions: Sample carryover was not found on TECAN freedom Evo 100 autopipetting system for AFP, CEA. However, carryover is a potential problem with automated instruments and robotic pipetting systems. Therefore, Clinical laboratories must periodically verify carryover contamination for the accurate and confidential test results.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.36 no.4
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• pp.70-79
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• 2018

This study would suggest a measure for the improvement of the commentary program on the building concentration area of Changdeokgung Palace. In the process of the survey, the researcher attended the commentary site and tape-recorded commentaries two times. The researcher conducted an analysis of the times and contents of the tape-recorded commentaries and evaluated their appropriateness, including historicity and connectivity to the site. In addition, the researcher figured out the commentaries and the visitors' movements through drawings and field surveys and analyzed the locations and conditions of the main facilities. Through a field survey and analysis, it was found out that the commentaries included the facts and anecdotes about the buildings, the related figures and history. However, it was found out that there were very insufficient commentaries on the buildings arranged according to the commentary movements, the outside space, in particular, the traditional landscape facilities. In addition, it was found out that there are areas that would need commentaries and opening for viewing. A proposal for the improvement of the commentary program was drawn up based on the analysis. New commentary points were added, and the commentaries of the outside space of the area and the traditional landscape facilities could improve through modifying the existing commentaries. With the proposal for improvement, the time required was calculated through reading aloud at a speed the same as the existing commentary speed. Through this, it was found out that the proposal for improvement could be implemented within one hour, the same as the present commentary program. This study has a significance that it provided a measure for practical improvement that could provide the visitors with quality commentary information and more interesting experience.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.6
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• pp.15-23
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• 2016

In this paper we presented 4G security models in an open environment. 4G networks have still more security holes and open issues for expert to notice. In here. we show that a number of new security threats to cause unexpected service interruption and disclosure of information will be possible in 4G due mainly to the fact that 4G is an IP-based, heterogeneous network. it tells about the security issues and vulnerabilities present in the above 4G standards.. we try to present several architectures behind 4G infrastructure for example WiMAX and 3GPP LTE architecture. Finally, we point to potential areas for future vulnerabilities and evaluate areas in 4G security which warrant attention. When you make a big dada program, If you use this network architecture then you can improve your learning speed.

• 한국정보교육학회:학술대회논문집
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• 2011.01a
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• pp.29-35
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• 2011

With the society rapidly changing, children are being asked respond quickly to these changes. Therefore, how children learn and think comes before what to teach, and we need to come up with ways to nurture their ability to proactively control their lives and studies. We attempt to use the technique of Accelerated learning, which focuses on the student's own ability toacquire and use information, to enhance the efficiency of information technology education. We designed the PLAY model based on accelerated learning and Multiple Intelligence Theory, and conducted ten experimental sessions on two groups of 70 second grade elementary school students.

• The Journal of Internal Korean Medicine
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• v.27 no.2
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• pp.533-537
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• 2006

The purpose of this study is to present a case of gaze palsy due to thalamic infarction improved by acupuncture and herb medicine. Monocular gaze palsies which result from a supranuclear cerebral lesion are rare clinical manifestations. The pre-frontal cortico-oculomotor pathways travel across the thalamus and mesodienphalic junction terminating directly in oculomotor complexes. The acute disinhibition of these neurons by a posterior thalamic lesion results in a sustained but transient discharge of the medial rectus and tonic activation. Results of this study suggest a role for conservative therapy with herb medicine and acupuncture to treat gaze palsy due to thalamic infarction. Further research into oriental medical treatment for such disorders will be forthcoming.

• The Korean Journal of Vision Science
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• v.20 no.4
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• pp.469-482
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• 2018

Purpose : We investigated the change of spherical and comma aberrations after wearing aspheric soft contact lens (ASCL) in young myopes. Methods : Fifty young myopes ($23.15{\pm}1.70years$, spherical equivalent: $-2.90{\pm}1.75D$) were recruited and refractive errors were corrected using ASCL (Biotrue, Bausch+Lomb, USA). High order aberrations were measured in the 4 mm pupil size using the wavefront analyze and pupil sizes were measured with a pupillometer at the modes of scotopic condition (light off) at 3.5 m in the 100 lx illuminance condition. Results : Spherical aberrations and coma aberration of the 20s myopes were $0.026{\pm}0.031{\mu}m$ and $0.078{\pm}0.039{\mu}m$ respectively, and $0.019{\pm}0.026{\mu}m$ and $0.082{\pm}0.038{\mu}m$ after ASCL wear that spherical aberration was decreased and coma aberration was increased. However, spherical aberration was decreased in the 68% of the subject have positive spherical aberration, and increased in the 11% of the subject have negative spherical aberration. Coma aberration was increased in the 53% of the subject, did not change in the 19% of the subjects, and decreased in the 28% of the subject. Spherical aberration was not different with the refractive errors in low and moderate myopies, however, coma aberrations was higher in the higher myopes. Conclusion : In a scotopic condition without accommodation stimuli, spherical aberration is decreased after wearing ASCL, however in the subject have negative spherical aberration spherical aberration could be increased, and which is thought to be the influence of contact lens design and pupil size.

• Proceedings of the Ginseng society Conference
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• 1984.09a
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• pp.27-36
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• 1984

It was previously reported that red ginseng extract inhibited carcinogenesis by urethan, DMBA and aflatoxin $B_1E (Cancer Detection and Prevention, 6: 515-525, 1983). In an attempt to investigate the mechanism of the anticarcinogenic effect of ginseng, we assayed natural killer (N.K) activity in mice treated with urethan and benzo(a)pyrene. In our experiment newly born Swiss Webster mice, less than 24 hrs. old, were given a single subcutaneous injection of lmg of ure-than and 40ug of benzo(a)pyrene. The mice had been administered with ginseng since weaning, and sacrificed at various intervals. Major organs were examined both, with the naked eye and microscopically. N.K. activity of spleen cells was analyzed in a 12-hour $^{51}Cr^-release$ assay against YAC-1 cells. Administration of ginseng resulted in an increase of N.K. activity by $18\%$ at 4 weeks, $20\%$ (P < 0.05) at 6, $29\%$ (P < 0.05) at 12, and $13\%$ at 24 following a single injection of urethan. At the same time, significantly lower incidences of lung adenoma were noted at 6 weeks $(50\%)$ and 12 weeks $(27\%)$ following the administration of ginseng to urethan-injected mice. This result indicates that the enhancement of N.K. activity by ginseng makes a contribution to its anticarcinogenic effect. On the hand, N.K. activity was suppressed by benzo(a)pyrene during the time span of this experiment and it almost returned to the level of controls following the adminsitration of ginseng. However, the lung adenoma induced by benzo(a)pyrene began to occur at 48 weeks in which N.K. activity had naturally declined to a very low level in all experimental mice, and administration of ginseng did not decrease the incidence. In explanation of this result, we might propose that the recovery of the N.K. activity by ginseng had little effect on the incidence of lung adenoma because of the long latent period of carcinogenesis by benzo(a)pyrene. In conclusion, these results suggest that the anticarcinogenic effect of ginseng in urethan-treated mice may be related to the augmentation of N.K. activity.

• Cross-Cultural Studies
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• v.46
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• pp.327-353
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• 2017

This study analyzed how an aspect of translation can be shown on the 'Kureru type(くれる類)' verbs in "Kokoro", which was a Japanese modern novel when it was reproduced by translators. It focused on 'the use in accordance with a subject of expression and the other person' and 'the object of movement'. 'The use in accordance with a subject of expression and the other person' could be summarized as follows: The 'Kureru type' verbs were not translated only in accordance with the use of vocabulary in a dictionary. 'Kudasaru' was used in many examples of letter writing when 'the giver' was younger and it was translated to a polite form in Korean. 'Kureru' had a characteristic when 'the giver' was older in Korean translation. The act of parents was translated to an honorific form if parents were 'givers' regardless of whether a listener was an internal character or an external character in parent-child relationships. The degree of politeness was different in English translation when the 'Kureru type' verbs were used for asking a favor request command. 'Please' was used more for 'Kudasaru' than 'Kureru'. An aspect of translation in accordance with 'the object of movement' could be summarized as follows: The 'Kureru type' verbs were used as main verbs. 'Kureru' and 'Kudasaru' were translated to 'Juda' 'Jusida' in Korean translation, but they were translated to various vocabulary words in accordance with the characteristic of 'the object of movement' and were translated to imply a specific act, the process of possession and the result of possession in English translation. The 'Kureru type' verbs were also used as auxiliary verbs. The translated vocabulary words for Korean translation and English translation were different in accordance with whether the movement of things other than the movement of act was included or not. Examples were translated predominantly to expressions of profit such as '-Jada' '-Dalla' '-Jusida' when there was a movement of act as well as specific things in Korean translation. Also, some examples were translated to expressions of profit when there was the movement of act with an abstract matter and there was only the act of the object of movement, but many examples were translated to the act of first verbs. Examples were translated predominantly to the act of first verbs when there was the movement which included specific things and abstract matters or there was only the movement of act in English translation. Expressions of asking a favor request such as 'Kureru' and 'Kudasaru' were translated to '-Dalla' '-Juseyo' in Korean translation, but they were translated to expressions which specify an act while focusing on the structure of sentences or the function of language, such as 'must', 'ask', 'wish', 'would', and 'would like to' 'please' in English translation.