• Title/Summary/Keyword: 대조도 척도

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Change Detection of a Small Town Area from Multi-Temporal Aerial Photos using Image Differencing and Image Ratio Techniques (다시기 항공사진으로부터 영상대차법과 영상대비법을 이용한 소도읍 지역의 변화 검출)

  • Lee, Jin-Duk;Yeon, Sang-Ho;Lee, Dong-Ho
    • Journal of the Korean Association of Geographic Information Studies
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    • v.11 no.1
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    • pp.116-124
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    • 2008
  • This study presents the application of multi-temporal and multi-scale panchromatic aerial photos for change detection in a small urban area. For aerial photos of the scale of 1:20,000 taken in 1987 and 1996 and the scale of 1:37,500 taken in 2000. Pre-processing that make the same conditions to all of the aerial photos was carried out through geometric correction, registration, contrasting, resamplimg, and mosaicking and then change detection were carried out respectively by image differencing and image ratio techniques. As a result, the change of urban features and landcover were able to be detected from panchromatic aerial photos that is single-band images and then the detected change results were compared between both techniques.

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The Effects of Dual Task Training on Postural Stability and Balance in Chronic Stroke (이중과제 훈련이 만성뇌졸중 환자의 자세안정성과 균형에 미치는 효과)

  • Park, Hae-Kyun;Cho, Ki-Hun;Lee, Wan-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.8
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    • pp.3555-3562
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    • 2011
  • The purpose of this study was to investigate the effect of dual task training on postural stability and balance in chronic stroke patients. A total of 25 ambulatory hemiplegic stroke patients were recruited into this study and randomly assigned into two groups, the dual task training group (n=13) and control group (n=12). Both groups received general physical therapy for 30 minutes a day, 5 days a week during 6 weeks. In addition, dual task training group received dual task training programs for 50 minutes a day, 3 days a week during 6 weeks. The scores of Trunk Impairment Scale (TIS), Postural Assessment Scale for Stroke (PASS) and postural sway with eye opened and eye closed on the Force Plate were assessed before and after intervention. Postural stability and balance significantly improved after training in the dual task training group(p<0.05). The result suggests that dual task training is feasible and suitable for individual with chronic stroke.

Effect of watching movie & animation on anxiety and discomfort of the patients during MRI exam (MRI 검사 환자의 불안 및 불편감에 대한 영화(애니메이션)감상 효과 분석)

  • Park, Myung-Chul;Lee, Moo-Sik;Hong, Jee-Young;Bae, Seok-Hwan;Li, Nam-Gu
    • Proceedings of the KAIS Fall Conference
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    • 2009.12a
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    • pp.769-773
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    • 2009
  • 본 연구는 MRI 검사를 받은 환자를 대상으로 영상매체(Visual equipment & Audio system)를 이용하여 영상물을 제공함으로서 불안과 불편감에 대한 효과에 대해 규명함으로써 MRI 검사로 인한 심리적, 정신적 불안과 불편 감을 감소시킬 수 있는 대체요법을 제공하기 위하여 본 연구를 시도하였다. 연구대상은 대전광역시에 위치한 K 대학병원에서 MRI 검사를 받은 환자 중 영상물을 제공받은 실험군 30명과 영상물을 제공받지 않은 대조군 30명을 대상하였다. 연구의 도구는 Spielberger의 기질불안 도구와 Cline, Herman, Shaw와 Morton이 고안한 불안점수 도구인 시각적 상사척도(VAS)를 이용하였고, 영상물을 제공하여 두 군 간의 활력징후를 측정하였고 불편감은 대상자의 주관적 불편감(어지러움, 공포감. 긴장감)점수와 객관적 불편감 행동 점수를 사용하였다. 자료 분석 방법은 SPSS12K for Windows program을 이용하였으며, 두 군의 일반적 특성 및 수술에 관련된 특성의 동질성 검증은 $\chi^2$ 검정, 가설검증은 t-test로 분석하였다. 연구결과를 요약해 보면 영상매체(Visual equipment & Audio system)를 이용하여 영상물(영화, 애니메이션)을 제공하면서 MRI 검사를 진행했을 경우 검사 대상자의 혈압 및 객관적 불편감에서는 유의한 영향을 미치지 못했으나 불안과 활력징후의 하나인 맥박의 감소, 또한 주관적 불편감이 감소됨을 알 수 있었다. 따라서 환자의 심리적인 긴장감을 완화시키며 안정감을 느끼게 하는데 효과적인 대체요법이 될 수 있을 것으로 사료 된다.

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Effect of Dance/Movement Therapy on Mental Health in In-patient with Schizophrenia (무용/동작치료가 입원중인 정신분열증 환자의 정신건강 변화에 미치는 영향)

  • Kim, Hong-Ja;Kim, In-Suk;Kim, Do-Hyung
    • The Journal of the Korea Contents Association
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    • v.11 no.4
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    • pp.458-467
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    • 2011
  • The purpose of this study was examine the effects of dance / movement therapy on anger and anger expression, depression and anxiety, and positive as well as negative symptoms in in-patient with schizophrenia. Among inpatients with schizophrenia in J Dajeon psychiatric hospital, 38 patients were allocated to either dance and movement therapy (DMT) group (n=18), which included 24 sessions of DMT and medical treatment over 12 weeks, or a control group (n=20), which included only medical treatment. State anger and anger control of DMT group were improved after 12 weeks, and there was a significant difference in anger control after 12 weeks between two groups. Depression of DMT group was improved, and there was significant difference in depression after 12 weeks between DMT and control group. There was a significant difference in negative symptoms after 12 weeks between DMT and control group. These finding demonstrates that DMT has benefit on the reduction of state anger by increasing anger control and depression as well as may improve negative symptoms in in-patient with schizophrenia.

Nursing Approach of an Offered Blanket on the Anxiety of Patients Undergoing Brain MRI (담요제공이 Brain MRI 검사를 받는 환자의 불안에 미치는 간호중재적 접근)

  • Park, Jin-Yeong;Kim, Kye-Ha
    • The Journal of the Korea Contents Association
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    • v.16 no.11
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    • pp.623-632
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    • 2016
  • The purpose of the present study was to evaluate the effect of an offered blanket on the anxiety of patients undergoing brain MRI. The participants were 52 patients who underwent brain MRI in C university hospital of G city. Blanket was applied to the experimental group (n=26) before MRI. Data were collected from May to December 2015, and analysed using the chi-squared test, the independent t-test, and repeated measures ANOVA. The results showed that there was no significant difference in the anxiety measured by STAI of the two groups. But, the level of anxiety measured by the visual analog scales was reduced in the experimental group (t=-2.75, p=0.008). There were no difference in the blood pressure and pulse rate in the experimental and control groups. Therefore, further study is needed to decrease the level of anxiety of patients undergoing brain MRI.

A Study on Bodyblade Training of Convergency Relation of Trunk Muscles Activity and Pain in Patients with Low Back Pain (요통환자의 체간근 활성도 및 통증과 Bodyblade 훈련의 융합관계에 관한 연구)

  • Park, Chi-Bok;Jung, Enu-Ho;Lee, Ho-Shik
    • Journal of the Korea Convergence Society
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    • v.8 no.11
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    • pp.123-131
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    • 2017
  • The purpose of this study was to investigate the effect of bodyblade training on pain and trunk muscle activity in patients with chronic low back pain. A sample of 30 subjects were recruited for this study. Bodyblade training group(n=10) was performed bodyblade training three times a week for six weeks, lumbar stabilization training group(n=10) was performed lumbar stabilization training three times a week for six weeks, and control group(n=10) wasn't performed any other training. For evaluation of trunk muscle activity, surface EMG was used and for evaluation of pain, VAS was measured. The results were as follows: trunk muscle activity, there was significant difference according to the measurement, pain, there was significant difference according to the measurement. From the results, bodyblade training is expected to be an effective intervention for patients with chronic back pain.

A Convergence Study on the Effects of functional electrical stimulation with mirror therapy on balance and gait ability in chronic stroke patients. (기능적 전기자극을 병행한 거울치료가 만성 뇌졸중 환자의 균형 및 보행능력에 미치는 영향에 관한 융합적 연구)

  • Kim, Dong Hoon;Kim, Kyung Hun
    • Journal of the Korea Convergence Society
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    • v.9 no.10
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    • pp.109-120
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    • 2018
  • The purpose of this study was to investigate the effects of functional electrical stimulation (FES) with mirror therapy on balance and gait ability in chronic stroke patients. Thirty-five subjects who met the inclusion criteria were randomly allocated into three groups: the functional electrical stimulation with mirror therapy group(FMT group, n=11), mirror therapy group(MT group, n=12), and control group (n=12). The exercises were conducted for 30 min per day, five, per week for four weeks. Balance and gait ability were examined at baseline and after 4 weeks of intervention. After training, the FMT group showed significant improvement in berg balance scale (BBS), center of pressure (COP) length, affected step length (ASL), Cadence and average gait speed (AGS) compared MT group and control group(p<0.05). This findings show that FES and MT convergence can be an effective intervention for stroke patients balance and gait ability. Continued development of convergence interventions for stroke patients with balance and gait ability in practice, are suggested.

The Effect of Mental Practice on Gait and Quality of Life in Stroke Patients (상상훈련이 뇌졸중 환자의 보행 및 삶의 질에 미치는 영향)

  • Kim, Jin-Seop
    • Journal of Digital Convergence
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    • v.10 no.4
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    • pp.271-277
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    • 2012
  • The aim of this study was to evaluate the effects of mental practice to improve on gait and quality of life in stroke patients. Participants were randomly allocated to two groups: experimental(n=10) and control (n=10). Both groups received neural development treatment training for 6 sessions 1 hour per week during 6 weeks. Experimental group practiced additional mental practice for 3 session 10 minutes per week 6 weeks. Results were evaluated by spatial-temporal parameter, 10m walk test, and quality of life. There were significantly increased by mental practice in outcomes of the gait performance from the gait velocity, cadence, double support, single support, 10m walk test. There were significantly increased by mental practice in outcomes of stroke impact scale from the strength, social participants, and stroke recovery. In conclusion, the mental practice improves gait performance and quality of life in stroke patients. The results suggest that mental practice training is feasible and suitable to stroke patients.

Large Slow-Drift Motions of a Floating Body in Slightly Modulated Waves (해상(海上)에 계류(繫留)된 부유체(浮遊體)의 표류운동(漂流運動) 해석(解析))

  • Dong-J.,Kim;Hang-S.,Choi
    • Bulletin of the Society of Naval Architects of Korea
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    • v.27 no.4
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    • pp.3-14
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    • 1990
  • For a moored body on the sea surface, incident waves with narrow-banded spectra excite the body oscillations of short and long periods. Since the period of slow oscillations can be as long as the natural period of the moored body in horizontal modes, resonance can occur and resulting large motions may cause significant strains in mooring cables. By using the perturbation method of multiple scales, the large slow motion can be analyzed without solving any second-order potentials explicitly. To the leading order, the flows associated with the fast and slow motions interact only parametrically and thus they can be studied separately. It is found that the slow motion strongly depends on the mooring stiffness. In particular, if the moring stiffness is considerably weak compared to the body inertia, the slow motion is highly amplified near resonance. It is also shown that the slow motion is associated with the generation of long waves.

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Effects of Action-observational training Program on Gait and Balance of Patients with Hemiplegia (동작관찰훈련프로그램이 편마비환자의 보행 및 균형에 미치는 영향)

  • Kim, Haeri;Woo, Sunghee;Lee, Hyojeong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2017.10a
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    • pp.594-597
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    • 2017
  • The purpose of this study is to evaluate the effects of Action-observational training program on gait and balance of patients with hemiplegia. Subjects of this study, among the patients who received the diagnosis cerebral vascular accident, for patients total of 4 people have agreed to research. Experimental group 2 people, control group 2 people, was a total of 4 people. Group-specific arbitration method, was applied to Action-observational training program(experimental group) and general Task-oriented training program(control group). Each training courses 30 minutes for 4 weeks, examined the changes in 10 Meter Walk Test(10MWT), gait speed, Berg Balance Scale(BBS) and time up and go(TUG) ability to examine a total of 4-week course effectively. The intervention were compared by measuring before and after. There were significant improvements in the subscales of the gait and balance test of those who practiced with the Action-observational training program, while the control group showed no significant changes. Therefore, Action-observational training program is effective in improvement of to improve the gait and balance in patients with hemiplegia.

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