• The Korean Journal of Pain
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• 제8권1호
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• pp.74-77
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• 1995

Upper thoracic sympathectomy is valuable for patients with vascular occlusive disease and other painful upper extremity diseases. We performed 10 upper thoracic sympahthectomies by percutaneous radiofrequency destruction in painful disorder of upper extremity. Patients were supine and the needle was inserted paratracheally under C-arm fluoroscope. The second and third thoracic sympathetic gangla were destructed by radiofrequency lesion generator. Each lesion was made with a tip temperature of $90^{\circ}C$, 90 seconds. Good to excellent results were achieved in all patients without any adverse effect. Seven patients revealed complete sympatholytic effect and other three patients were showen signs of partial sympathetic block. Two patients were persisted sympatholytic effect for 18month in and other 5 patients were persisted sympatholytic effect at present (follow up period: mean 5.8 mon). Percutaneous radiofrequency upper thoracic sympathectomy with anterior paratracheal approach is an effective and a safe method.

• Nuclear Engineering and Technology
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• 제50권8호
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• pp.1412-1420
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• 2018

An experiment was performed using the large-scale test facility (LSTF), which simulated a 1% vessel upper head small-break loss-of-coolant accident with an accident management (AM) measure under an assumption of total-failure of high-pressure injection (HPI) system in a pressurized water reactor (PWR). In the LSTF test, liquid level in the upper head affected break flow rate. Coolant was manually injected from the HPI system into cold legs as the AM measure when the maximum core exit temperature reached 623 K. The cladding surface temperature largely increased due to late and slow response of the core exit thermocouples. The AM measure was confirmed to be effective for the core cooling. The RELAP5/MOD3.3 code indicated insufficient prediction of primary coolant distribution. The author conducted uncertainty analysis for the LSTF test employing created phenomena identification and ranking table for each component. The author clarified that peak cladding temperature was largely dependent on the combination of multiple uncertain parameters within the defined uncertain ranges.

• 한국콘텐츠학회논문지
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• 제20권9호
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• pp.520-530
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• 2020

본 연구의 목적은 작업기반 양측성 상지 훈련과 경 두개 직류 전류 자극이 뇌졸중 환자들의 상지기능에 미치는 효과를 알아보는 것이었다. 만성 뇌졸중 환자를 대상으로 작업기반 양측성 상지훈련과 경두개 직류전류자극을 실시한 실험군 13명, 작업기반 양측성 상지훈련만 실시한 대조군 13명으로 나누어 총 4주간, 50분씩, 주 5회 실시하였으며, 캐나다 작업수행 평가(Canadian Occupational Performance Measure;COPM), 가속도계 (Accelerometer), 퍼글 마이어 검사(Fugle-Meyer Assessment;FMA), 운동 홛동 척도(Motor Activity Log;MAL)를 사용하여 평가하였다. 연구 결과, 실험군과 대조군은 작업 만족도와 수행도, 환측과 건측의 사용량, 상지 기능의 회복과 움직임의 질에서 모두 유의미한 개선을 보였으며, 특히, 환측 사용량에서 실험군은 대조군 보다 유의한 차이를 나타냈다. 따라서 작업기반 양측성 상지 훈련과 경 두개 직류 전류 자극의 결합 중재가 뇌졸중 환자의 상지기능회복에 긍정적인 효과를 보임을 알 수 있었다.

• 대한치과교정학회지
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• 제11권2호
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• pp.125-134
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• 1981

To study the calcification of second molars in skeletal class II malocclusion, the author examined cephalograms, orthopantomograms, periapical films of 391 children from 7y 0m to 15y 11 m years old who had skeletal class II malocclusion, and observed the difference in the calcification stage between upper and lower second molars. The result s are as follows. 1. The mean ages of crown completion of upper and lower second molars are $8.7{\pm}1.75$, $8.8{\pm}1.13$ in boys, and $8.4{\pm}0.81$, $8.5{\pm}0.91$ in girls. 2. The mean ages of root completion of upper and lower second molars are $14.0{\pm}1.09,\;14.5{\pm}0.52$ in boys, and $13.7{\pm}1.15,\;13.8{\pm}1.18$ in girls. 3. The calcification stages of upper second molars are more advanced than those of lower second molars at $5\%$ level in both sexes.

• 한국정밀공학회지
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• 제22권7호
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• pp.122-129
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• 2005

Shoe with leather upper such as safety and golf shoe requires a roughing process where the upper is roughed fur helping outsole to be cemented well. It is an important and basic process for production of leather shoe but is not automated yet. Thus, there are problems that the defect rate is high and the quality of roughed surface is not uniform. In order to solve such problems, the interest in automation of roughing process is being increased and this paper introduces CAM system for 5-axis automatic roughing machine as one part of automation of roughing process. The CAM system developed interpolates a B-spline curve using points measured from the Roughing Path Measurement System. The B-spline curve is used to generate the tool path and orientation data fer a roughing tool which has not only stiffness but also flexibility to rough the inclined surface efficiently. For productivity, the upper of shoe is machined by side of the roughing tool and tool offset is applied to the roughing tool for machining of inclined surface. The generated NC code was applied to 5-axis polishing machine for the test. The upper of shoe was roughed well along the roughing path data from CAM and the roughed surface was proper fur cementing of the outsole.

• 대한소아치과학회지
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• 제25권1호
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• pp.152-156
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• 1998

The purpose of this study was to investigate the prevalence rate of the nursing caries in preschool children by retrospective epidemiological survey. 500 preschool children in Iksan city were examined for their dental caries experience (dt, mt, ft). Subjects were divided stepwise by the pattern of caries experience: Group 1-no caries, Group 2-no caries in the upper arch, Group 3-no caries among the upper incisors, Group 4-dmft in the lower arch $\geq$ mft in the upper arch, Group 5-dmft among the upper molars > dmft among the upper incisors, Group 6-dmft among the upper molars < dmft among the upper incisors+caries among the lower incisors, and Group 7-the rest. Groups 6 was regarded as the group which had experienced rampant caries, and the Group 7 was regarded as the group which had the typical pattern of nursing caries. The prevalence rate of nursing caries (Group 7) was 16.0%.

• 한국지구과학회지
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• 제29권5호
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• pp.428-436
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• 2008

This study observed the upper tropospheric ozone enhancement in the northern Atlantic for the Aerosols99 campaign in January-February 1999. To find the origin of this air, we have analyzed the horizontal and vertical fields of Isentropic Potential Vorticity (IPV) and Relative Humidity (RH). The arch-shaped IPV is greater than 1.5 pvus indicating stratospheric air stretches equatorward. These arch-shaped regions are connected with regions of RH less than 20%. The vertical fields of IPV and RH show the folding layer penetrating into the upper troposphere. These features support the idea that the upper tropospheric ozone enhancement originated from the stratosphere. Additionally, we have investigated the climatological frequency of stratospheric intrusion over the tropical north Atlantic using IPV and RH. The total frequency between the equator and $30^{\circ}N$ over the tropical north Atlantic exhibits a maximum in northern winter. It suggests that the stratospheric intrusion plays an important role in enhancing ozone in the upper troposphere over the tropical north Atlantic in winter and early spring. Although the tropospheric ozone residual method assumed zonally invariant stratospheric ozone, stratospheric zonal ozone variance could be caused by stratospheric intrusions. This implies that stratospheric intrusion influences ozone variance over the Atlantic in boreal winter and spring, and the intrusion is a possible source for the tropical north Atlantic paradox.

• Korean Journal of Mathematics
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• 제5권2호
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• pp.127-134
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• 1997

On the setting of the upper half-space of the euclidean n-space, we study some properties of harmonic little Bloch functions and we show that for a given harmonic little Bloch function $u$, there exists unique harmonic conjugates of $u$, which are also little Bloch functions with appropriate norm bounds.

• 한국의류학회지
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• 제24권4호
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• pp.521-529
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• 2000

This paper proposed the sizing system for women's upper clothes in order to improve clothing fitness and raise the productivity. The sizing system was classified according to 5 body types and 5 age groups. The size intervals of the basic dimensions were established at regular intervals centering around their means. The size interval of stature was 8cm centering around 158cm and that of bust girth 4cm centering around 84cm and that of hip girth 4cm centering around 92cm. Frequency distribution on the size of upper clothes showed that the most frequent size were 96-96-150 in the longest-fattest type, 88-96-158 in the long-fatter type, 84-92-158 in the medium length-fat type, 84-92-166 in the Short-balanced type, and 76-88-158 and 80-88-158 in the medium length-balanced type. The number of the sizes of upper clothes, which had frequencies more than 5%, was 32 and each size was presented with waist girth, back waist length and sleeve length. The size system classified by age group had 22 cases in the early twenties, 15 cases in the late twenties, 21 cases in the early thirties, 19 cases in the late thirties, and 15 cases in the forties.

• Journal of applied mathematics & informatics
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• 제37권5_6호
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• pp.351-355
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• 2019

We obtain two characterizations of uniform distribution based on ratios of upper record values by the properties of independence and identical distribution.