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유승필,김태균,Lyu, Sung-Pil,Kim, Tae-Kyun 대한전자공학회 1989 전자공학회논문지 Vol. No.
글자의 간격과 크기가 일정하지 않으므로 전처리 과정에서 각 글자를 분리하기 어려운 필기체 한글 문서로 부터 자모들을 인식하는 방법을 제안한다. 본 방법은 세선화된 필기체 한글문서의 영상 내에 있는 모든 글자들을 스트로크들로 변환시키고, 이들 사이의 배열관계를 나타내는 속성을 추출한 다음, 이들 스트로크와 속성들에 대해 속성문법을 적용하여 자모들을 인식한다. This paper proposes a method to recognize vowels and consonants in a handwritten Hangul text, in which the sizes of chracters and the spaces between characters are not uniform. In this method, all characters in the thinned image of a handwritten Hangul text are transformed into strokes, and the attributes which represent the relations between strokes are extracted from these strokes, and the attributes which represent the relations between strokes are extracted from these strokes. The vowels and consonants are recognized by applying attributed grammars to the strokes and attributes.
두개의 고정점을 가지는 Strip회전에 의한 디지탈 곡선의 직선 근사화
柳承必 世明大學校 1992 世明論叢 Vol.2 No.-
Roberige had proposed a method of linear approximation using strips. This method is known to be fast relatively, and the distance between the given curve and calculated straight line is not greater than an allowable error. But this method generates many break points. Later, Leng and Yang proposed the dynamic strip algorithm(DSA) which reduced the number of break points at the sacrifice of the speed. Here, a method is proposed which is same in speed as Roberige's and generates almost the same number of break points as Leng and Yang's by using movable strips with two fixed points.
서효빈 ( Hyobin Seo ),남주옥 ( Ju Ock Nam ),전병덕 ( Byung Duk Jeon ),김판기 ( Pan Gi Kim ),유승필 ( Sungpil Ryu ) 한국산림과학회 2012 한국산림과학회지 Vol.101 No.4
The purpose of this study was to investigate the potential of persimmon vinegar as a functional beverage by analyzing the effects of persimmon vinegar ingestion on the energy substrate during endurance exercise. The healthy male adolescents (n=8) drunk persimmon vinegar ingested trial (PSV) or purified water ingested trial as the control trial (CON) 1 h prior to the exercise with the 60% of maximal oxygen uptake (VO_₂max) for 1 h. The exercise intensity was increased to the 80% of VO₂_max and remained until exhaustion. And the physiological variables blood components and amounts of energy oxidation were analyzed. There was no significant difference between trials in physiological variables and the heart rates after exhaustion were higher in PSV compared to CON. There was no significant difference between trials in blood glucose level while the blood lactic acids decreased significantly in PSV 30 and 60 minutes after onset of exercise. The free fatty acids concentration increased significantly in PSV from 15 minutes to 60 minutes after onset of exercise. The carbohydrate oxidation decreased significantly in PSV from 45 minutes after exercise and on the contrary the fatty acids oxidation increased significantly for the same period. And fatty acids oxidation was higher in PSV compared to C|ON even after exhaustion. The respiratory exchange ratio was lower significantly in PSV compared to CON from 30 minutes to 60 minutes after exercise whereas lower in CON after total exhaustion. The exercise time to exhaustion was 41% longer in PSV compared to CON. These results showed that the persimmon vinegar increase the level of lipids metabolism and decrease sense of fatigue by inhibiting carbohydrate oxidation during moderate intensity exercise suggesting the possibility of using of persimmon vinegar as exercise functional beverage when ingested 1 h prior to the endurance exercise performance.