• 한국전문물리치료학회지
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• 제17권2호
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• pp.43-50
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• 2010

The purpose of this study was to investigate the effects of Evjenth-Hamberg stretching on the active range of motion (ROM) of the hip joint and the pennation angle of the semitendinosus muscle. Eighty healthy adults participated in this study. The active ROM of the hip joint was measured by a goniometer and the pennation angle of the semitendinosus muscle was measured by ultrasonographic imaging (USI). Both ROM and pennation angle were recorded before and after the static stretching and the Evjenth-Hamberg stretching, respectively. Data were analyzed using paired t-lest and independent t-test at p<.05. The results were as follows: 1) The active ROM of the hip joint increased significantly after both stretching interventions compared with the baseline (p<.001). However, the active ROM of the hip joint increased significantly in Evjenth-Hamberg stretching compared with static stretching. 2) The pennation angle decreased significantly after both stretching interventions compared with the baseline (p<.001). However, the pennation angle decreased significantly in Evjenth-Hamberg stretching compared with static stretching. 3) Reliability data showed that there was a high consistency in USl measurements (ICC=.978). Our findings suggest that the Evjenth-Hamberg stretching was more effective than static stretching in increasing the active ROM of the hip joint and decreasing the pennation angle of the semitendinosus muscle.

• 대한치과기공학회지
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• 제33권4호
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• pp.427-440
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• 2011

Purpose: The following research analyzes the causes of major selection and career decision of students studying dental technology. It is to be used as basic data for the management of career improvement program. Methods: The survey has been processed to 490 college students studying Dental Technology in D-college. Questionnaire consists of major selection confidence sheet (14 items) and career decision confidence sheet (18 items) and was scored with 5-points per question. The collected data was analyzed by the statistical program: SAS V8 for Windows. To test for significance on each item, p < 0.05 has been decided as a standard. Results: The analysis of result about the level of confidence on major selection has valid difference by genders, serving military service or not, experience of studying one more year to enter the college or not, making career decision and grade. The analysis of result about career decision has valid difference by gender, serving military service, career decision, day and night course, age and native place. Conclusion: We develop the career advice program and manage it effectively, the confidence on the major selection and pride about its faculty will be high to dental technology students.

• 대한치과기공학회지
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• 제29권2호
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• pp.65-77
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• 2007

This study is for the purpose of studying the validity of the construction of items and grading of the evaluation table at clinical practice used as the method of evaluation when clinical practice of Dept. of Dental Technology. 205 dental technicians in 4 cities were questioned to analyze the relation between items of the evaluation table at clinical practice and its grading. The collected materials were inspected by SAS V8 for Windows. The results are as follows: 1. Making up all the items and grading seem to be appropriate because they had the marks more than midium(more than 3.28). 2. Making up detailed items and grading seem to be trusted because they had the marks more than 3.30. 3.The significance level of the relation between items of the evaluation at clinical practice and its grading by t-inspection is p<0.0001 and so it appears to be meaningful. 4. It proved to be meaningful in result of regression analysis of the influence on the construction of the evaluation at clinical practice and its grading. With this result, further study is needed for the better methods of the evaluation in its adjustment and graduated grading among the items.

• 한국지반공학회논문집
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• 제21권2호
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• pp.145-150
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• 2005

사면 붕괴를 예측하기 위해서 적당한 수학적 모델을 선택하는 것은 매우 유용하다. 시간열로 실시간 계측된 자료를 통하여 합리적인 사면붕괴 예측용 수학모델을 선정할수 있다. 3차 방정식을 이용한2가지 형태의 이론적 모델이 이 연구에서 사용되었다(Polynomial 및 Growth형). 사면의 변위각 및 침하를 계측할 수 있는 계측기가 느릅재 및 북실 현장에 적용되어 모델의 적용가능성을 점검하였다. 그 결과 계측 자료와 두 가지 수학모델과 아주 높은 일치성을 보였다.

• 한국조경학회지
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• 제32권5호
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• pp.35-42
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• 2004

This study examines the traffic noise reduction effects of the diverse efficiency features of a sunken square, and investigates the reduction effects and characteristics of noise alterations according to the construction conditions in order to verify its possibility as a new noise reduction facility. The measured data were analyzed. As a result, (1) the traffic noise from the roads around the sunken squares exceeded the regulatory standards; (2) the sunken squares were protected from noise; (3) the sunken spaces yielded a greater reduction by 6∼7dB than the flat ground thanks to the diffraction effect; and (4) there were fine changes to noise according to the conditions of space construction. In short, a sunken square has the potential to afford new applications as a noise reduction facility in a highly concentrated downtown with the existing defects solved. In addition, its use for effective noise control is evident based on the noise characteristics of a space. Future studies need to include efforts to provide clearer quantitative data, as well as research on shape, layout, and materials.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2011년도 학술발표회
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• pp.131-131
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• 2011

기후변화로 인한 기상이변 현상이 빈번하게 발생하면서 홍수와 같은 자연재해의 피해규모가 증가하고 있다. 이를 극복하기 위해 최근에는 구조적 대책뿐만 아니라 홍수예측시스템과 같은 비구조적 대책에도 많은 관심과 연구가 이루어지고 있다. 통상 홍수예측을 위해서는 예측강우의 정확도가 중요하게 부각되지만 중규모 이상의 유역에서는 수 시간의 지체시간 효과로 인해 AWS 실황강우만으로도 어느정도 선행시간에 대해서 하천유량예측이 가능하다고 할 수 있다. 본 연구에서는 기상청 AWS 실황강우를 이용하여 하천유량을 예측할 경우 어느정도 선행시간과 정확도를 확보할 수 있는지에 대해서 분석하고자 한다. 분석을 위한 시단위 강우자료와 기상자료는 각각 AWS와 ASOS 자료를 이용하였다. 또한 하천유량 모의를 위한 강우-유출모형으로는 SURF 모델(Sejong University River Forecast Model)을 이용하였다. 이 모형은 저류함수모형 기반의 연속형 강우-유출모형으로 미래에 대한 유출모의결과의 정확도를 향상시키기 위해 앙상블 칼만필터링 기법을 연계한 모형이다. 그림 1은 충주댐유역에 대해서 2009.7.8~17일(240시간)에 대해서 관측유량 자료동화 전후의 결과를 나타낸 것이다. 현시점을 100, 105, 110, 115시간으로 가정하고 미래기간에 대해서는 관측강우를 0으로 가정했을 때 대략 첨두유량 발생 5시간 전에 예측된 모의유량이 관측유량과 거의 일치함을 확인할 수 있다. 따라서 실황강우와 관측유량 자료동화 기법을 연계할 경우 수 시간의 선행시간에 대해서 유량예측이 가능한 것으로 판단된다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2008년도 춘계 학술논문 발표대회
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• pp.183-186
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• 2008

Carbonation is measured as Phenolphthalein Solution, it is possible to confirm the scope of alkali through acid and basic reaction. Then, Concrete Basic Reaction is decided according to alkali concentration depending on Potassium Hydroxide Now that Carbonation is gradually produced toward inner side from outer side, with time going by, it doesnt work, to some adequate depth, in as fast time as compulsory facilitating test. Thus, this research thesis made a comparative analysis on concrete phenomenal discoloration borderline following Phenolphthalein Solution, as part of a bid to measure Carbonation. Also, the thesis measured Concrete Alkali Concentration. The result showed that concrete coloring is classified into red and scarlet according to alkali concentration, and into borderline breakpoint of the speckle of scarlet and carbonation reaction. The higher chroma becomes with concrete decolorizing, the higher alkali concentration becomes.

• The Korean Journal of Physiology and Pharmacology
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• 제1권3호
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• pp.297-302
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• 1997

Higenamine was widely used as traditional remedy for the treatment of rhumatoid arthritis. Nitric oxide(NO) may be a critical mediator in this inflammatory disease. Synovial tissue from humans with inflammatory arthritis expresses NOS2(iNOS) mRNA and protein, and generates NO in vitro. We therefore, investigated the effect of higenamine on the induction of nitric oxide synthase(NOS) promoted by lipopolysaccharide(LPS). Prophylactic application of higenamine selectively prevented LPS-primed initiation of L-arginine-induced relaxation and restored rhenylephrine(PE)-induced contraction in rat aorta. LPS-stimulated nitrite production in the incubation medium was reduced by higenamine. Furthermore, RT-PCR and Northern analysis indicated that higenamine reduced iNOS expression primed by LPS in rat aorta. These results suggest that higenamine prevents LPS-promoted induction of NOS in vascular smooth muscle.

• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2010년도 심포지엄 및 추계학술발표회
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• pp.315-315
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• 2010

• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2010년도 심포지엄 및 추계학술발표회
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• pp.311-311
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• 2010