청색잡음 마스크 임계값변조를 이용한 경계강조 오차확산법

이을환,박장식,박창대,김재호,Lee, Eul-Hwan,Park, Jang-Sik,Park, Chang-Dae,Kim, Jae-Ho 대한전자공학회 1999 電子工學會論文誌, S Vol.s36 No.10

오차확산법은 연속계조 화상을 이진화상으로 표현하는데 있어서 연속계조 화상의 재현 능력뿐만 아니라, 우수한 경계 재현 능력을 가지고 있다. 그러나 이진화상에 눈에 거슬리는 패턴이 발생하는 단점을 가지고 있다. 한편 연속계조 화상의 화소와 청색잡음 마스크(blue noise mask)의 각 임계값을 화소별로 비교하여 이진화상으로 나타내는 방법도 있다. 이것은 규칙적인 패턴은 없지만 양자화 오차로 인해 이진화상이 흐려보이는 현상이 있다. 본 논문에서는 청색잡음 마스크 임계값변조를 이용한 경계강조 오차확산법을 제안한다. 제안하는 이진화 기법을 적용한 이진화상은 규칙적인 패턴이 없고 경계가 강조되어 시각적으로 선명하다. 제안하는 이진화 기법을 등가화상 개념으로 분석하며, 환상 평균 전력 스펙트럼과 경계상관도를 이용하여 기존의 알고리듬과 비교한다. The error diffusion algorithm is excellent for reproducing continuous gray-scale images to bianry images and also has good edge characteristics. However, it is well known that artifacts with objectionable patterns can occur in the halftoned images. On the other hand, a halftone algorithm using blue noise mask has been proposed. where the halftoning is achieved by a pixelwise comparison of gray-scale image with an array, the blue noise mask. It doesn't have pattern artifacts, but the halftoned image looks unclear because the quantization errors are not feedbacked compared to the error diffusion. In this paper, edge enhanced error diffusion which dithers the threshold with the blue noise mask is proposed. We show that the proposed algorithm can produce unstructured and edge enhanced halftone images. This algorithm is analyzed by the concept of an equivalent input image. The performace of the proposed algorithm is compared with that of the conventional halftoning by measuring the radially averaged power spectrum and edge correlation.

항산화성 바이오 미네랄 활성수에 의한 항노화 및 미백효과

최현경 ( Hyun Kyung Choi ),오명진 ( Myoung Jin Oh ),허명준 ( Myeong Jun Her ),경경환 ( Kyeong Hwan Kyeong ),박장서 ( Chang Seo Park ) 대한화장품학회 2009 대한화장품학회지 Vol.35 No.1

자외선에 노출된 피부는 활성산소종을 형성한다. 이는 피부의 염증 반응을 야기시키며 콜라겐 생성 억제를 통해 피부 노화를 촉진시킨다. 본 연구에서는 2종류의 항산화성 미네랄 바이오 활성수1과 2(MIBA-W1, MIBA-W2)를 이용하여 항염증 및 항노화 기초 효능과 함께 미백효능을 측정하였다. 두 종류 MIBA-W 모두가 UV에 의해 증가된 TNF-α를 상당량 줄여주는 것으로 나타나 항염증 효능이 있는 것이 확인되었다. 한편 UVB에 의해 감소되는 콜라겐 합성량은 MIBA-W1에 의해 0.01 % 농도에서 대조군 수준으로 증가하였으나 MIBA-W2는 농도가 증가할수록 콜라겐 합성량이 증가하는 경향을 보였다. 한편 MIBA-W2는 α-MSH로 처리된 B16-F1 melanoma 세포에서의 멜라닌 합성을 억제하는 것이 관찰되었다. MIBA-W2 의 경우 고형분 0.001 % (부피비 5 %)의 농도에서 α-MSH에 의한 멜라닌의 합성을 α-MSH positive control 대비 약 50 % 감소시키는 효과를 보였다. 종합하면 두 종류의 MIBA-W는 항염증 효능과 미백기능을 가지는 피부생리활성을 가지고 있는 것이 확인되었으며 따라서 기능성화장품 소재로 개발될 수 있는 가능성을 보였다. UV irradiated skin cells produce reactive oxygen species (ROS). ROS is known to be the primary cause of skin inflammation that is eventually leading to skin aging through decrease of collagen in the dermis. In this study, we evaluated basic efficacy of anti-aging, anti-inflammation and anti-melanogenesis using two antioxidative mineral- bio waters (Mineral-bio water 1 (MIBA-W1) and Mineral-bio water 2 (MIBA-W2)). Both antioxidative mineral- bio waters reduced TNF-α expression which was induced upon UV irradiation. MIBA-W 1 increased collagen synthesis from UVB irradiated fibroblast at 0.01 % concentration but MIBA-W2 shows slight, but linear increase. Stimulation of melanogenesis by α-MSH treatment in the cultured B16-F1 melanoma was significantly reduced by the treatment of MIBA-W2 in a dose dependent manner. Taken together, antioxidative MIBA-W1 and 2 seem to have potential applications as functional cosmetic materials.

조숙 대립 다수성 풋땅콩 ‘보름1호’

배석복(Suk-Bok Pae),박장(Chang-Hwan Park),심강보(Kang-Bo Shim),하태정(Tae-Joung Ha),이명희(Myung-Hee Lee),황정동(Chung-Dong Hwang),박금룡(Keum-Yong Park),이학동(Hak-Dong Lee) 한국육종학회 2015 한국육종학회지 Vol.47 No.1

A new peanut variety ‘Boreom1’ (Arachis hypogaea ssp. fastigiata.) was bred at the Department of Functional Crop, NICS, in Milyang in 2010. This was developed by pedigree method after the cross between the large grain cultivar ‘Suwon 108’ and the short stem cultivar ‘Milyang4’. ‘Boreom 1’ which is Shinpung plant type had 9 branches per plant and its length of main stem was 43 cm. Each pod has two grains with brown testa and long ellipse-shaped large kernel, and its 100 seed weight was 105 g in the regional yield trials (RYT). ‘Boreom1’ showed 49.9% of crude oil and 54.5% of oleic acid composition in dry seed, and had 30.8 mg/g of sucrose and 4.2 mg/g of tannin content in fresh peanut. In the regional yield trials, ‘Boreom 1’ was more productive than reference variety by 8% with 10.16 MT/ha for fresh pod production and by 3% with 4.26 MT/ha for dry grain production.

Sport·健康에 關한 國民의 意識調査

이광재,박장평,한상준,박남환,노성규,문병용,부기원,이철규,홍관이,엄기진,오수일 江原大學校附設 體力硏究所 1982 江原大學校附設體育科學硏究所論文集 Vol.- No.7

To find the level and pattern on the national sports. Health consciousness and the trend of national consciousness on the health·sports activity. 15,000 numbers of the national persons(reside in seoul and other 10 cities and provinces) were classified by sex, age and districts, and answered by questionair. The results are as follow: A. Background of National sports behavior 1. View of body Persuiting national view of body are strong resistance to dicease, well developed Motor nerve, and total Endurance.Especially, men wish for strong muscle while women wish for beautiful shape of bodily muscle. 2. view of life a. National life become developing ambitiously through sports, and feels that sports is necessary for whole human life. b. About 30% of nation recognized that lack of exercise causes damage their Health. 3. A nation admit that the effects by sports on various physical and mental ability, but women admit less sports effect than men because women is less that men in sports experience. 4. Leisure time of youth age have craving for sports strongly, but difficult to secure the spare time. On the other hand, it is easy to secure that thes pare time in old age, but the time is not use in sports activity, so useful using the leisure time(according to increasing in time) appeals the point at issue to the future important question. 5. facility and space Sports trends on sports activity in natural scene and centering around with family is common acknowledgment regardless of sex and age. National wishes for sports facilities are practical one: facility placed not long distance to their home, background with natural scene, save the money and use it freely. Thus, exercise facilities in district is centered around with the school and necessary to open the school facilities for support rather positive program. 6. Colleague and Group National consciousness for group is stronger in youth age then old age. Youth age intent to same group and open hearted. On the other hand, middle and old age also intent to same group, but closed hearted regardless of sex and age. Intention to membership system group is appeared that most of nation wish for free activity by low ratio. 7. Instructor National wishes for instructing attitude of Instructors are frank in manner, proficient in instruction skill with safely and courteous Instructor but exercise with freely:Intent to filling up contemporal enjoy is represented. These show that national sports activity and propagation is supported by Instructor's attitude. B. Pattern of national sports behavior. 1. The pattern of elementary exercise. Elementary exercise, long distance walking(longer 4km), chin up at wood or horizontal bar, and cycling(over 30 minutes), etc, (10 minutes dance in women) are carried continuously in most age, but the elementary exercises need of not a little function(total Endurance, Muscle-strength, Power, etc) are represent a decreasing tendency in the latter half of 20th-ager and rapidly decreasing in the latter of middle age. Thus, it is necessary a counterplan to decreasing sports events, but desirable to make particalize and organize adapt the regional characteristic to elementary exercise of everyday life which carries continuously. 2. The pattern of sports behavior. a. Intention to sports function. National experience on sports function shows the intention to the function of new sports events(Ball games and Gymnastics in physical education curriculum of school, and the leisure events such as Golf, Skate, Ski, etc), though its including mobility among sports events. On the other hand, other sports functions such as Badminton, Cross country, etc, are comparatively a stable status. b. Intention to various sports events. Most of nation intent to leisure activity of various sports events because it including the factors of fashionable and sociable. National sports conciousness toward the basic tendency is showed lack of the man to amn and the devotion. On other word, they conform some degree to the trend of increasing in sports activity or population, but low trends in themselves. For the men of experienced in sports function varied the range of influence according to the sports events, it is necessary to amke the systematic and realistic condition centered around with youth age for potential population. C. National Health Conciousness. About 30% of nation answered the major causes to damage one's health are "lack of exercise" "over load of work". A subjective symptom represented following order: "often lumbago(especially in women)". "often shoulderache". Total self diagnosis are "life is disirable" "good appitite" "have a good sleep". In counterplan for health during everyday life are "cleaning body" "have a good sleep" "good diatary methods", but highly rely on "relegion and drug use", etc, in old age and women. In this way, national sports activity and health consciousness relies on general, sensible, and passive methods rather than positive and voluntary manners such as "routin check", "the behavior to preserve and develope of health", but these are showing that national conciousness for health and sports activity is interactive relation and exist in life. D. A proposal for developement of national Health and Sports behavior 1. Carry-over on sports behavior. National sports behavior did not carry-over from school to society as above mentioned. Thus, it is necessary to formation of curriculum deliberate this carry-over value in educational school: not also taking a serious view of elementary exercise, but also subdivide the sports text into properly. So, the authorities have to link in with concentrative and cross sectional methods. 2. Counterplan for women and old age. Decreasing phenomena in sports life just after the periods of school age is become a major cause of damage their health to women and from middle to old age. Thus, a basic policy on actualization of social physical education for women and old age may be groped and examined in a national level. 3. Selection of Instructor. It seemed that national sports activity and spread are densed still more to the possibility by the instructor, but persons in instructorial position are not full enough. Thus, it is important to select of new instructors, and organize and ensure of social level that they concentrate their whole attention in spread of sports activity. More over, it is an important problem on the national sports advancement to arrange the instructor in to properly and necessary to selecton and bring up appropriate instructor such as following fields: "Competition instructor", "instructor for spread of sports" "counsellor of physical education and health" "instructor for handicapped" "instructor for children and old ager", etc. 4. A role of masscommunication for developing sports behavior. A nation admits to various ability through sports, but as mantioned above, the degree of sports experience just after the periods of school age is more decreasing tendency than other. These are include various factors, but authority have to encourage the role of systematic, programatic and realistic catalysis because public relations of masscommunication(effects through sports, sports education, necessity on sports, value on sports) is situated in absolute position which influence on increasing the national sports behavior.

운동선수의 임장불안에 대한 연구

홍관이,이광재,김두경,부기원,노성규,한상준,박기동,오수일,문병용,이철규,박장평,엄기진,박남환 江原大學校附設 體育科學硏究所 1984 江原大學校附設體育科學硏究所論文集 Vol.- No.9

This study is designed to grasp the elements and situations of stage fright in order to propose a part of ways to cope with it. We make 511 top-class high school players, male and female, in the central districts (Seoul, Inchon, Kyungki, Chungbuk, and Kangweon Province) on object of questionnaire, and get the following results. Through players generally have all-round characters they show weakness in the superiority and emotional stability while showing strength in the sonformity. This fact comes to be related to the elements which cause stage fright. Physiological changes also have many effects on the symptom of stage fright. Especially, stage fright increases when players show sensitive reaction to the self-consciousness of final consequence which comes from the tension or uneasiness of sympathetic nerve, Thus, it turns out that players make use of reducing psychological burden by physical exercise or adjusting the level of demanded result in order to release the stage fright.