• Journal of the korean academy of Pediatric Dentistry
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• v.34 no.4
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• pp.700-708
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• 2007

A midline deviation is divided into three types, such as a skeletal midline deviation, a dental midline deviation, and a combination. Among them, the midline deviation which appear in the early mixed dentition without any skeletal problem can be managed differently by the stage of dental development. The location of the permanent incisors can be improved without using artificial force in consideration of the condition of the space, the eruption timing or the eruption path of the adjacent permanent teeth in early mixed dentition, especially when the permanent incisors are erupting. Therefore, the space supervision technique, which can have the teeth align themselves utilizing physiologic events such as sequence or timing of the eruption of permanent teeth, can be an alternative to orthodontic movement. This case report describes midline deviation improvement by space supervision.

• Proceedings of the Korean Society of Crop Science Conference
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• 1991.05a
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• pp.92-93
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• 1991

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.379-380
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• 2001

양식과정중에 사육어류가 받을 수 있는 스트레스 요인은 상존하며, 이러한 스트레스 요인에 의해 어류는 체내 생리적 불균형이 일어나고 약해져서 질병에 감염되거나 폐사에 이르게 된다(Chang et al, 2001). 특히 어류의 선별시 발생할 수 있는 수심감소, 수조이동, 공기노출 및 장거리 수송 등은 급ㆍ만성적으로 스트레스 요인으로 작용할 수 있다. 이러한 스트레스에 의해 어류는 비늘이 손상되고 혈중 코르티코스테로이드, 골루코스, 젖산, 전해질, 콜레스테롤, 혈액성상 및 표피 점액의 과다분비 등이 일어날 수 있으며, 회복되지 않으면 죽을 수 있다(Wendelaar Bonga, 1997). (중략)

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.2 no.2
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• pp.62-67
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• 2009

Purpose: The purpose of this study is to find out the accuracy and usability of the three dimensional ultrasonography in measuring the size of the rotator cuff tear, especially before and after the injection of normal saline into the glenohumeral joint. Materials and Methods: 14 patients of rotator cuff tear who were diagnosed and operated from August 2007 to September 2008 were included in this study and authors compared the size of rotator cuff tear measured with three dimensional ultrasonography with the real size measured intraoperatively. In preoperative ultrasonographic evaluation, horizontal and longitudinal length of rotator cuff tear before and after injection of normal saline intraarticularly. During the arthroscopic operation the size of tear was measured by passing a Kirschner wire through a spinal needle and direct measure was performed in open surgery. Results: The average difference was 8 mm in horizontal and 1.9 mm in longitudinal length of tear without saline injection between ultrasonographic and intraoperative measure. The average difference was 4.1 mm in horizontal and 1.6 mm in longitudinal length of tear after the normal saline injection. Conclusion: In three dimensional ultrasonographic evaluation in rotator cuff tear, intraarticular normal saline injection would produce more accurate results.

• Korean Journal of Agricultural and Forest Meteorology
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• v.4 no.2
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• pp.65-71
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• 2002

The best environments such as crown density, temperature, light intensity and humidity have to be identified because these factors are strongly related to the growth and several physiological characteristics. The purposes of this study are \circled1 to collect basic data fer growth, \circled2 to identify the best growth environments. to achieve these purposes, oak, pine and mixed forest stands have been selected in this study. forest ginseng seeds were sown in these forest four years ago. Several environmental and growth factors have been surveyed. In general, mean tree age, DBH and average height are 20-25 years old, 14-17 cm and 7-9 m, respectively. The growths of forest ginseng grown in oak stand are better than those of pine and mixed stands.

• 전기의세계
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• v.46 no.8
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• pp.14-17
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• 1997

공학의 발전에 따라 부수적으로 나타나는 현상은 환경과 어떠한 형태로든 관련성이 있다고 본다. 공학의 발전에 따라서 인류가 편리한 생활을 영위하게 되는 반면 악화를 초래하는 양면성이 있는 것이다. 주지하는 바와 같이 방전.고전압공학도 많은 발전을 하여 각종 산업은 물론이며, 인류생활에 지대한 공헌을 하고 있으나 그로 인한 문제점도 적지 않은 것이다. 일반적으로 환경공학이라면 수질.대기.소음문제를 크게 다루게 된다. 그러나, 더욱 넓은 의미로의 환경공학은 각종 공학에서 부수적으로 유발되는 환경적 측면을 고려하지 않으면 21세기 산업사회에서는 큰 문제점을 초래할 것이다. 인간 지식의 85%는 시각을 통하여 얻어지고, 육체 행동의 80-90%는 눈에 의하여 그 기능이 제어된다. 한시라도 태양과 공기 그리고 물이 없으면 인류생활은 파멸에 이를 것이다. 이와 함께 적절한 조명환경을 구사하지 못한다면 심리적, 생리적 그리고 노동생산은 상상도 하지 못할 정도로 파탄에 이를 것이다. 이러한 관점에서 필자는 평소 관심있는 분야인 방전.고전압공학과 환경분야와의 관련성을 찾아보고 환경대책의 개괄을 방전.고전압 측면으로부터 찾아보고저 한다.

• KSBB Journal
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• v.17 no.3
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• pp.261-265
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• 2002

The biologically active peptides in human blood can adjust the functions of many physiological systems. The peptides in human blood were separated on the five steps of linear gradient-elution mode by RP-HPLC with UV detection. The size of commercially available $C_{18}$ chromatographic column was 4.60$\times$150 mm with particle size of 5 $\mu\textrm{m}$ and pore size of 100 $\AA$. The mobile phases used were water in 0.75% trifluoroacetic acids (TFA) and organic modifier of acetonitrile. The isolation methods suggested in this work for peptides from the blood were composed of the formation of immiscible liquid layers and precipitation by centrifuge and chemicals of sodium citrate and trichloroacetic acid (TCA). The some peptides were identified based on the retention times previously constructed database.

• Korean Journal of Environmental Biology
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• v.40 no.1
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• pp.25-53
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• 2022

In this study, trends in research methods and topics of seabird and marine fish migration were examined. Based on the framework of existing animal migration studies, future research directions were proposed in relation to the migration of seabirds and fish. In terms of research methodology, with the development of science and technology, tracking techniques using radio telemetry, acoustic telemetry, RFID (radio-frequency identification), satellite tracking, and geolocators are widely used to study seabird and fish migration. Research is also conducted indirectly through a population survey and the analysis of substances in the body. Research contents are largely classified into extrinsic factors that affect migration(such as environmental variables and interspecific competition), intrinsic factors such as hormones, anthropogenic activities including fishery and offshore wind farm, and the effect of global climate change. In future studies, physiological factors that influence or cause migration and dispersal should be identified concerning intrinsic factors. For the analysis of migration ability, it is necessary to study effects of changes in the magnetic field on the migration ability of seabirds and fish, interspecific differences in spatiotemporal migration ability, and factors that influence the migration success rate. Regarding extrinsic factors, research studies on effects of anthropogenic disturbances such as fishery and offshore wind farm and global climate change on the migration and dispersal patterns of marine animals are needed. Finally, integrated studies on the migration of seabirds and fish directly or indirectly affecting each other in various ecological aspects are required.

• Korean Journal of Weed Science
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• v.6 no.1
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• pp.48-58
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• 1986

In order to eluciate the factors affecting the injury caused by simetryne(2-methyl thio-4,6-bis(ethylamino)-S-triazine) to rice plants of Tongil variety(Indica ${\times}$ Japonica), the leaching properties of simetrynes, compared with Japonica varieties, Mangyeung and Sadominori were investigated. Bioassay technique and $^{14}C$-simetryne for leaching study and bioassay for the characteristics of the rice plants were employed. The leaching range of simetryne was very narrow regardless of soil types under upland soil conditions but it increased little in Silt clay soil and greatly in Sandy loam soil under flooded soil conditions. The amount of the roots of Tongil Jas a little more than that of Mangyeung and the roots of the Tongil mostly distributed near the surface soil while those of Mangyeung rooted deep into the soil. The foliage area and the rate of transpiration of Tongil were larger and greater than those of Mangyeung by 1.3 times and 1.65 times, respectively. The sensitivity of Tongil to simetryne was about 3 times larger than that of Sadominori in water culture.

• Annals of Clinical Neurophysiology
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• v.7 no.2
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• pp.121-123
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• 2005