• 한국전문물리치료학회지
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• 제18권2호
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• pp.52-59
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• 2011

The purpose of this study was to examine the relationship of the Stroke Rehabilitation Assessment of Movement (STREAM), the Berg Balance Scale (BBS), and the Modified Barthel Index (MBI) in the acute stroke care setting. Twenty patients with their first stroke were evaluated using STREAM, BBS, and MBI initially and at 4 weeks. The data was analyzed using the independent t-test, paired t-test, and the Pearson product moment correlation analysis. The scores on the STREAM were strongly associated with the scores on both the BBS and MBI (with Pearson correlation coefficients ranging from .88 to .95), and there was significant improvement between the initial scores and those obtained four weeks later for STREAM, BBS, and MBI (p=.001, p=.001, p<.001). The results suggest that STREAM may be able to reflect functional recovery and to assess voluntary movement in patients who have suffered an acute stroke.

• 대한소아치과학회지
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• 제24권2호
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• pp.436-448
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• 1997

Topical fluoride application for children is a widely performed procedure in the field of Pediatric Dentistry for its dental caries prevention effects. However, it is recently recognized as having some unwanted effects on several esthetic restorative materials as it roughens the surfaces of the restorative materials. In order to evaluate the surface changes in esthetic restorative materials, the author immersed composite resin, glass ionomer cement, and resin-modified glass ionomer cement specimens in various topical fluoride agents and measured the weight loss and also, examined the specimens under the scanning electron microscope. The followings are the results : 1. All the specimens immersed in APF gel for 4 minutes showed statistically significant weight loss. (paired t-test, P<0.05). 2. There was no statistically significant weight loss for the resin-modified glass ionomer cement and composite resin groups immersed in sodium fluoride solution (paired t-test, P>0.05). 3. When the glass ionomer cement group was immersed in APF gel for 1 and 4 minutes, there was a statistically significant weight loss compare to other esthetic restorative materials (ANOVA, P<0.05). 4. In the resin-modified glass ionomer cement group and the composite resin group, weight loss in the APF gel 4 minutes immersion group was greater than the 1 minute immersion group, and it was statistically significant (ANOVA, P<0.05). 5. When the specimens were examined under scanning electron microscope, the surface changes were greatest in the order of glass ionomer cement, resin-modified glass ionomer cement, composite resin and also in the order of APF gel 4 minute immersion group, 1 minute immersion group, sodium fluoride immersion group, and control group.

• 한국동물학회:학술대회논문집
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• 한국동물학회 1998년도 한국생물과학협회 학술발표대회
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• pp.168.2-168
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• 1998

No Abstract, See Full Text

• 대한족부족관절학회지
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• 제8권1호
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• pp.81-85
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• 2004

Purpose: The purpose of this study is to evaluate the surgical results of modified $Brostr{\ddot{o}}m$ procedure for chronic lateral ankle instability and to assess whether or not associated injuries may affect postoperative satisfaction. Materials and Methods: Twenty- four patients with chronic lateral ankle instability were evaluated retrospectively from August 1998 to March 2002. Average age was 29.3 years. All patients were performed pre & postoperative ankle anteroposterior and lateral view, stress anterior drawer and varus test using Telos device, MRI and intraoperative arthroscopic evaluations before ligament reconstruction. Results: Of the 24 cases, 23 cases was improved more than average 12 points on AOFAS scales. On modified scales of Hamilton, 3 excellent, 20 good, 1 fair results. On stress view, average 2.2 mm difference was improved on anterior drawer test and average 1.7 degree on varus test. Associated injuries were 8 osteochondral defects, 4 anterior impingements, 2 loose bodies, 2 os subfibulare, 2 os submalleolare and 2 partial ruptures of peroneus brevis. 8 cases with no associated injuries rated excellent or good. Conclusion: The modified $Brostr{\ddot{o}}m$ procedure is believed to be an effective and successful method for chronic lateral ankle instability that didn't respond to conservative treatment. Because associated injuries in chronic lateral ankle instability may affect postoperative satisfaction, appropriate detection and treatment may need for postoperative satisfaction.

• 한국전문물리치료학회지
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• 제25권2호
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• pp.30-43
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• 2018

Background: Hemispatial neglect is defined as the failure to attend, report, respond, or orient toward meaningful stimuli provided in the contralateral side of a brain lesion. Objects: This study was conducted to find out the effect of dynamic trunk equilibirum exercise for stroke patients with hemi-spatial neglect. Methods: This study included 21 stroke subjects, randomly assigned to either the experimental group or the control group. The exercise program consisted of 5 sessions of 20 minutes per week during 4 weeks. The line-bisection test, the Albert test, the balance function score, the Berg balance scale, the postural assessment scale for stroke and the modified Barthel index were measured before and after training. All data were analyzed using SPSS 12.0 for Windows. Between-group and within-group comparison was analyzed by using Independent t-test and Paired t-test respectively. Results: The results of study were as follows: There were significant differences between before and after intervention in both group (p<.05). There were significant differences in the line-bisection test, Albert test, balance function score, Berg balance scale, postural assessment scale for stroke and modified Barthel index between the experimental group and the control group (p<.05). Conclusion: Dynamic trunk equilibrium exercise had a positive effect on patients' neglect, balance ability and activities of daily living. Further studies are required to generalize the results of this study.

• Geomechanics and Engineering
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• 제20권1호
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• pp.9-18
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• 2020

Three-point bending specimens have been used to investigate the mixed mode fracture of green sandstone. Dimensionless stress intensity factors and T-stresses were calculated first by using the finite element method for various crack lengths, crack angles and span to length ratios. It is shown that three-point bending specimens can provide the whole range of mode mixities from pure mode I to pure mode II, provided suitable values are chosen for the crack angle and span to length ratio. The fracture test results were also used to compare with predictions of different criteria. These comparisons show that modified criteria including the influence of the T-stress agree better with experiment than the conventional criteria but that no one criterion matches perfectly the test results.

• 대한기계학회논문집A
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• 제30권8호
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• pp.923-930
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• 2006

A Kriging model is a sort of approximation model and used as a deterministic model of a computationally expensive analysis or simulation. Although it has various advantages, it is difficult to assess the accuracy of the approximated model. It is generally known that a mean square error (MSE) obtained from the kriging model can't calculate statistically exact error bounds contrary to a response surface method, and a cross validation is mainly used. But the cross validation also has many uncertainties. Moreover, the cross validation can't be used when a maximum error is required in the given region. For solving this problem, we first proposed a modified mean square error which can consider relative errors. Using the modified mean square error, we developed the strategy of adding a new sample to the place that the MSE has the maximum when the MSE is used for the assessment of the kriging model. Finally, we offer guidelines for the use of the MSE which is obtained from the kriging model. Four test problems show that the proposed strategy is a proper method which can assess the accuracy of the kriging model. Based on the results of four test problems, a convergence coefficient of 0.01 is recommended for an exact function approximation.

• Composites Research
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• 제24권5호
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• pp.1-8
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• 2011

본 논문은 필라멘트 와인딩 압력용기의 섬유 강도 크기 효과에 관한 이론 해석 및 시험 결과를 제시하였다. 첫 번째로, 카본-에폭시로 필라멘트 와인딩된 여러 크기의 후프 링 시험을 수행한 결과 섬유 강도의 크기 효과가 현저하게 나타났다. 다음으로, 해석적 방법으로 와이블 최약 파손 모델과 다 단계 연속 파손 모델을 이용한 파손 해석을 수행하여 후프 링 시험 결과 및 다른 문헌의 한 방향 복합재 시험 결과와 비교하였다. 해석 결과는 시험 결과와 비교하여 현저하게 낮은 섬유 강도 값들을 나타내었다. 본 논문에서는, 길이 방향의 크기 효과를 변경한 개선형 다단계 연속 파손 이론을 제시하였다. 개선형 다단계 연속 파손 이론으로부터 구한 섬유 강도 값들은 시험 결과들과 좋은 일치를 보였다.

• ETRI Journal
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• 제35권3호
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• pp.542-545
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• 2013

State-of-the-art voice codecs have been developed to extend the input bandwidth to enhance quality while maintaining interoperability with a legacy codec. Most of them employ a modified discrete cosine transform (MDCT) for coding their extended band. We propose a source filter model-based coding algorithm of MDCT spectral coefficients, apply it to the ITU-T G.711.1 super wideband (SWB) extension codec, and subjectively test it to validate the model. A subjective test shows a better quality over the standardized SWB codec.

• 보건의료산업학회지
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• 제8권3호
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• pp.181-192
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• 2014

The purpose of this study was to evaluate the effect of a sex education program on the aged's sex perception and the life satisfaction. It was the non-equivalent control group pre-post test design, the number of subjects was 65 people as the experimental group and 70 people as the control group over 65 the aged. The program was conducted for 80 minutes a time for 6times of the N settlement house in P city from August 25 to September 16 in 2011. The study tool which was developed by Lee(1999) and revised by Jeong(2007), was used to measure the sex perception. The life satisfaction was measured by Naugarten(1961) and modified by Kim(2002). The date were analyzed as SPSS Win 17.0, the percentage, t-test, and the hypothesis was analyzed as t-test. The experimental group got higher scores on the sexual percetion(t=3.816, p<.001) and the life satisfaction(t=4.594, p<.001). This program is for generalized that must be performed in a repeat and comprehensive study with the many aged.