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- 저자 : Sangwon Kong (검색결과 4 건)
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Sangwon Kong,Kyung Soo Lee,Junho Kim,Seong Ho Jang 대한재활의학회 2014 Annals of Rehabilitation Medicine Vol.38 No.5
Objective To compare the effect of two different hand exercises on hand strength and vascular maturation in patients who underwent arteriovenous fistula surgery.Methods We recruited 18 patients who had chronic kidney disease and had undergone arteriovenous fistula surgery for hemodialysis. After the surgery, 10 subjects performed hand-squeezing exercise with GD Grip, and other 8 subjects used Soft Ball. The subjects continued the exercises for 4 weeks. The hand grip strength, pinch strength (tip, palmar and lateral pinch), and forearm circumference of the subjects were assessed before and after the hand-squeezing exercise. The cephalic vein size, blood flow velocity and volume were also measured by ultrasonography in the operated limb. Results All of the 3 types of pinch strengths, grip strength, and forearm circumference were significantly increased in the group using GD Grip. Cephalic vein size and blood flow volume were also significantly increased. However, blood flow velocity showed no difference after the exercise. The group using Soft Ball showed a significant increase in the tip and lateral pinch strength and forearm circumference. The cephalic vein size and blood flow volume were also significantly increased. On comparing the effect of the two different hand exercises, hand-squeezing exercise with GD Grip had a significantly better effect on the tip and palmar pinch strength than hand-squeezing exercise with Soft Ball. The effect on cephalic vein size was not significantly different between the two groups.Conclusion The results showed that hand squeezing exercise with GD Grip was more effective in increasing the tip and palmar pinch strength compared to hand squeezing exercise with soft ball.
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공민정 ( Minjeong Kong ),김상원 ( Sangwon Kim ),김기천 ( Keecheon Kim ) 한국정보처리학회 2019 한국정보처리학회 학술대회논문집 Vol.26 No.2
인터넷 기술의 발전에 힘입은 전자상거래의 급격한 발전에 따라 소비자들의 소비습관은 오프라인에서 온라인으로 빠르게 바뀌었다. 이에 따라, 구매한 상품에 대한 평가를 작성하는 것 또한 만연해지면서 소비자들에게 구매 결정의 중요한 요인으로 작용하기 시작하였고 실제 판매량에도 직접적인 영향을 끼치기 시작하였다. 그러나, 현재 전자상거래 시스템에서는 상품에 대한 평가를 한눈에 알아볼 수 있는 기능이 부재하고 있어 소비자의 소비 전략과 판매 전략측면에서의 비효율을 야기하고 있다. 따라서, 본 논문에서는 LSTM 을 기반으로 한 딥러닝 모델을 이용해 감정분석을 하여 온라인 상품평을 긍정/부정에 따라 자동으로 분류하고자 한다. 이를 통해, 효율적인 반응 분석을 위한 기술 개발의 기반을 마련하여 소비자와 판매자 모두에게 더 나아진 전략 수립의 기회를 제공할 것으로 기대한다.
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Junho Kim,Kyung Soo Lee,Sangwon Kong,Taikon Kim,Mi Jung Kim,박시복,Kyu Hoon Lee 대한재활의학회 2014 Annals of Rehabilitation Medicine Vol.38 No.5
Objective To evaluate the clinical utility of the electrically calculated quantitative pain degree (QPD) and to correlate it with subjective assessments of pain degree including a visual analogue scale (VAS) and the McGill Pain Questionnaire (MPQ).Methods We recruited 25 patients with low back pain. Of them, 21 patients suffered from low back pain for more than 3 months. The QPD was calculated using the PainVision (PV, PS-2100; Nipro Co., Osaka, Japan). We applied electrodes to the medial forearm of the subjects and the electrical stimulus was amplified sequentially. Minimum perceived current (MPC) and pain equivalent current (PEC) were defined as minimum electrical stimulation that could be sensed by the subject and electrical stimulation that could trigger actual pain itself. To eliminate individual differences, we defined QPD as the following: QPD=PEC−MPC/MPC. We scored pre-treatment QPD three times at admission and post-treatment QPD once at discharge. The VAS, MPQ, and QPD were evaluated and correlations between the scales were analyzed.Results Result showed significant test-retest reliability (ICC=0.967, p<0.001) and the correlation between QDP and MPQ was significant (at admission SRCC=0.619 and p=0.001; at discharge SRCC=0.628, p=0.001). However, the correlation between QPD and VAS was not significant (at admission SRCC=0.240, p=0.248; at discharge SRCC=0.289, p=0.161).Conclusion Numerical values measured with PV showed consistent results with repeated calculations. Electrically measured QPD showed an excellent correlation with MPQ but not with VAS. These results demonstrate that PV is a significantly reliable device for quantifying the intensity of low back pain.
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