무전해 Ni-P 도금시의 저전류밀도의 영향

정유엽,이성룡,황용길 동아대학교 공과대학 부설 한국자원개발연구소 1988 硏究報告 Vol.12 No.2

This study has been carried out to investigate the effect of low current in electroless Ni-P plating. The results obtained from the experiment are summarized as follows ; 1) The plating rate in the composite plating of electrolysis and electroless is more double than in electroless plating. And optimum temperature of electroless plating is 85-95℃ but composite plating has been gained a excellent quality of plating at 40℃ 2) The higher temperature, higher PH, and lower current density, the better a leveling of plating surface is. And the composite plating under 0.5A/d㎡ current density is better than the electroless plating in the leveling of plating surface. 3) With passing the time, the composite plating is less than that of the electroless in the reduction of plating rate. 4) Composite plating is higher than electroless plating in hardness when they have been plated and heat-treated at 350℃

제14회 부산 아시아 경기대회 여자 태권도 경기 공격기술 및 득점 분석

허정석,황영성,박재성,김도호,한성유,이수판 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The purpose of this study was to analyze attack skills and scores in 8 weight classes of female Taekwondo athletes who participated in the semi-final and final matches(48 athletes) in the 14th Asian Games(2002, Busan). The 14th Asian Games was chosen for this study because it is in these games that the rules were revised to a variable scoring system. The results obtained from this analysis were as follows; 1. Korean female athletes: No significant difference was found in attack frequency in the light weight class and the heavy weight class. The attack frequency in the light weight class was shown to be in the following order: momtong-dolryeochagi(217 times), naraechagi(48 times) and dichagi(15 times). The attack frequency in the heavy weight classwas shown to be in the following order: momtong-dolryeochagi(263 times) and tchikeachagi(15 times). 2. Foreign female athletes: No significant difference was found in attack frequency in the light weight class and the heavy weight class. The attack frequency in the light weight class was shown to be in the following order: momtong-dolryeochagi(555 times), naraechagi(32 times) and dichagi(12 times). The attack frequency in the heavy weight class was shown to be in the following order: momtong-dolryeochagi(555 times), tchikeachagi{35 times) and naraechagi(35 times). 3. There is a significant difference in attack frequency in the light weight group of Korean female athletes and foreign female athletes, Between groups, in case of quick body attack, such as momtong-dolryeochagi and naraechagi, the frequency of korean athletes was shown to be higher and scores obtained were higher. In case of high score face attack, such as eolgul-dolryeochagi and tchikki, the frequency of foreign atheletes was shown to be higher 4. There is a significant difference in attack frequency in the heavy weight group of Korean female athletes and foreign female athletes, Between groups, in case of quick body attack, such as momtong-dolryeochagi and naraechagi, the frequency of Korean athletes was shown to be higher and the foreign female athletes' eolgul-dolryeochagi and dwitchagi score rates were shown to be the higher.

제14회 부산 아시아 경기대회 남자 태권도 경기 공격기술 및 득점 분석

허정석,황영성,박재성,김도호,한성유,이수판 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

The purpose of this study was to analyze attack skills and scores in 8 weight classes of male Taekwondo athletes who participated in the semi-final and final matches(48 athletes) in the 14the Asian Games(2002, Busan). The 14th Asian Games was chosen for this study because it is in these games that the rules were revised to a variable scoring system. The results obtained from this analysis were as follows; 1. There is a sinificant difference of attack skill frequency per Korean(Foreign) male athlete was 50.00(51.38) times and scores obtained were an average of 5.06(4.25) points per athlete. 2. There is a significant difference in attack frequency between the light weight group and heavy weight group of Korean and Foreign male athletes. Korean male athletes: Between groups, in case of momtong-dolryeochagi, naraechagi and tchikeachagi, the frequency of the light weight group was shown to be higher. The frequency of momtong-dolryeochagi was shown to be higher in the heavy weight group. 3. There is a significant difference in attack frequency between Korean male athletes and Foreign male athletes in the light weight group and heavy weight group. The light weight group: Between groups, in case of momtong-dolryeochagi and eolgul-dolryeochagi, the frequency of Korean male athletes was shown to be higher and in case of naraechagi, dwitchagi and dolgaechagi, the frequency of Foreign male athletes was shown to be higher. The heavy weight group: Between groups, in case of and eolgul-dolryeochagi, naraechagi and dwitchagi, the frequency of Korean male athletes was shown to be higher and in case of momtong-dolryeochagi, tchikeachagi and dolgaechagi, the frequency of Foreign male athletes was shown to be higher.

태권도 프로그램이 정신지체아동의 인지기능 발달에 미치는 영향

허정석,황영성,한성유,이수판,안인준 釜山大學校 附設 體育科學硏究所 2006 體育科學硏究所 論文集 Vol.22 No.1

The purpose of this study was to determine the effect of the Taekwondo program on cognitive competence of children with mental retardation. The subjects were 18 children with mental retardation. The children were devided into two groups. One group(n=9) was in an experimental group and the other group(n=9)was a control group. To find out any changes of their cognitive competence, the Taekwondo program was executed to the exercise group three times a week, for forty minutes a day over ten weeks......

한국과 호주의 스쿼시 경향과 향후 추세에 관한 비교 연구

한성유,황영성,박재성,허정석 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1

This research is based on squash professionals opinion, precedent literature as well as other books and internet-researched information. In hopes that squash will not only become a more life-time sport, but a profession collegiate sport as well, and help change the publics recognition as an elite sport, and become an opportunity for professional literature and researches will recognize squash as a learning field: and in doing so, provide a compilation of strategic plans based on those of Australia to set a basic foundation. As a result of this research: 1. Financial independence must be acquired through more company sponsorship and T.V. broadcasting of squash games. 2. Municipal and provincial branch must become more autonomous through horizontal relationship. 3. A thorough reeducation course is needed to increase the quantity, but the quality of present Korean coaches and players. 4. Regulations and laws regarding the establishment of squash facilities must be drafted to avoid users from being exposed to danger through thoughtless governmental approval. If regulations and laws suitable for Korea conditions are created based on those of more advanced nations, then squash in Korea will continue on its path to further development.

한약재 열수추출물의 항산화 활성 및 Xanthine Oxidase 저해 활성

신유진(Yu-Jin Shin),황정만(Jeong-Man Hwang),이승철(Seung-Cheol Lee) 한국식품영양과학회 2013 한국식품영양과학회지 Vol.42 No.10

통풍 증상을 개선하고 예방 및 치료에 효과를 확인하여 이를 일상생활에 지장을 주지 않고 장기간 쉽게 복용하기에 적합한 식품 소재를 발굴하기 위하여 한의학 및 식품 관련 서적에서 통풍 개선 및 치료 효과가 있어 널리 사용되고 있는 29가지 식용 가능 한약재를 선별하였다. 각 한약재의 열수 추출액의 총 페놀 함량, DPPH 라디칼 소거능, ABTS 라디칼 소거능, xanthine oxidase 저해능을 측정한 결과, 황금 추출액이 가장 높은 활성을 나타내었다. 이상의 결과는 황금 추출액을 주 소재로 하여 항산화능과 통증 개선에 유용한 식품 개발에 활용될 수 있을 것으로 기대된다. In our study, as many as 29 edible medicinal herbs were selected for testing their ability in the effective treatment of gout based on oriental medicine theory. We extracted each medicinal herb (135 g) with 4 L of distilled water at 100~105°C for 210 min. Thereafter, we evaluated both the antioxidant and xanthine oxidase inhibition activities of the extracts obtained. Among all the edible medicinal herbs used in our study, only the extract from Scutellaria baicalensis Georgi (Korean name: hwang-geum) showed (1) the maximum total phenolic content (TPC) (2.25 mg gallic acid equivalent/mL), (2) DPPH radical scavenging activity (94.04%), and (3) xanthine oxidase inhibition activity (87.75%). We also observed that TPC was relatively highly correlated with both the DPPH radical scavenging activity (r=0.63) and xanthine oxidase inhibition activity (r=0.77). Our results suggest that S. baicalensis G. may be a potent antioxidant source for the extraction and development of nutraceuticals that may be utilized for effective treatment of gout.

정신지체아동의 감각운동에 대한 문헌적 연구

김도호,황영성,박재성,한성유,허정석,이수판 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

The purpose or this study is to consider the effect of the sensory exercise which has been judged as improving mentally retarded children's motor ability, social maturity, recognition ability, emotional behavior through stimulation of sensory organs. Result are as follows: 1. (First) Sensory exercise was promoting motor ability of the mentally retarded children. 2. (Second) Sensory exercise was promoting social maturity of the mentally retarded children. 3. (Third) Sensory exercise was promoting recognition ability of the mentally retarded children. 4. (Finally) Sensory exercise was promoting emotional behavior or the mentally retarded children.

시각장애인의 유산소성 운동이 체력에 미치는 영향

박재성,김주혁,황영성,김도호,이수판,한성유,허정석 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

This research fulfilled the program of aerobic exercise for living during 6 months with seven men and women who are disabled people with visual impairment, The program consists or gym, swimming, aerobic and running, During 6 months, all exercises were executed 1 hours, twice a week for 6 weeks. Each exercise had self-servant and was carried out 60 minutes with teaching method of special directors in every weep Physique by height, weight, condition of exercise ability by the capacity of the lungs of the heart and lung endurance and intake of the maximum oxygen, muscular strength of stomach, grasping power, pliability by forward bending with the upper part of the body, instantaneous force of muscle in a sudden jump, muscular endurance by put-up and sit-up, agility by side-step and response of the whole body, and balance by one leg standing while closing eyes as using Helmas (sewoo systems korea) were measured. The Results, 1.There is a significant difference for both men and women in the capacity of the lungs and the heart and lung endurance, However only women have a significant difference in intake of the maximum oxygen. 2. Both men and women have a significant difference in muscular strength of stomach and grasping power to measure muscular strength. 3. Both men and women have a significant difference in forward bending with the upper part or the body to measure flexibility. 4. Sudden jump to measure instantaneous force of muscle, sit-up, and push-up to measure muscular endurance show that both men and women have a significant difference.(p<.01) 5. Side-step and response of the whole body to measure agility show that both men and women have a significant difference. 6. One leg standing with closing eyes to measure balance show that both men and women have a significant difference.

국내산 과일 및 채소 추출물을 이용한 체중 조절 관련 기능성 식품소재 탐색

김인혜;김종배;조강진;황유진;황경아;고정숙;엄애선 한양대학교 2011 韓國 生活 科學 硏究 Vol.31 No.1

Obesity can be defined as a disorder of lipid metabolism and the control of this process is regulated by enzymes involved in lipid metabolic pathway. Obesity is also characterized increases in the number and size of adipocyte differentiated from fibroblastic pre-adipocytes in adipose tissue. The aim of this study was to screen ethanol extracts of 21 fruits and vegetables cultivated in Republic of Korea for identifying natural sources of lipase inhibitor and to investigate the effects of several extracts resulting in suppression of triglyceride (TG) accumulation in 3T3-L1 cells. Among the tested extracts, Diospyros kaki L. showed the highest contents of total sugar and the content of total phenolic compounds was detected 17 species while there was not detected in Ixeris dentate root and Allium fistulosum C. etc. We were screened 26 extracts of fruits and vegetables for pancreatic lipase inhibitory activity compared with orlistat. The strongest lipase inhibitory activities were shown by extract of Allium sativum L. stem, Allium sativum L. bulb, Apteryx australis, Diospyros kaki L. Malus Pumila, Perilla frutescens and Prunus mume regardless of concentrations treated. Eight extracts including Brassica juncea var. integrilolia had no effect on lipase inhibition. During the differentiation of 3T3-L1 preadipocyte to mature adipocyte, the cells were treated with carrier or 7 extracts(1, 5 and 10 ㎍/ml), which was shown to highest lipase inhibitory effects. We were quantified lipid contents secreted mature adipocytes and stained with Oil Red O. All cells treated with the Apteryx australis and Prunus mume significantly decreased TG contents than the control. These findings suggested that the screened fruit and vegetable could be a promising source as the effective and safe lipase inhibitors for isolating bioactive ingredients and developing functional foods.

흡연에 의한 급성 호산구성 폐렴 2예

박종빈,김학렬,주현준,유태양,신성남,신정현,송정섭,황기은,김소영,양세훈,정은택 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.2

최근 흡연을 시작한 젊은 성언에서 급성 호산구성 폐렴의 발생에 대한 증례가 보고되고 있다. 급성 호산구성 폐렴은 대개 발열을 동반하기 때문에 초기에는 감염성 폐렴으로 잘못 진단, 치료되는 경우가 많다. 아직 정확한 병태 생리 및 조직학적 소견은 밝혀져 있지 않지만 병력 청취 및 임상 양상, 방사선 소견의 관찰을 통해 급성 호산구성 폐렴을 의심하고, 진단을 위해 기관지 폐포 세척액 검사를 시행한다면 좀 더 쉽게 진단 내릴 수 있을 것이다. 본 저자들은 최근 처음 시작한 흡연에 의해 발생한 급성 호산구성 폐렴을 진단하고, 스테로이드를 투여하여 성공적으로 치료한 환자 2예를 경험하였기에 이를 문헌 고찰과 함께 보고하는 바이다. Acute eosinophilic pneumonia(AEP) is characterized by acute febrile respiratory illness associated with diffuse pulmonary infiltration and pulmonary eosinophilia. The specific etiology for acute eosinophilic pneumonia is elusive. By some investigators, cigarette smoking is suggested as a causative substance which can cause AEP. In recent, the authors experienced two cases of AEP following cigarette smoking. Both cases had characteristic features including age around 20 years, new onset smoking before occurance of AEP, diffuse infiltration on chest radiography, pulmonary eosinophilia based on bronchoalveolar lavage and acute improvement after steroid therapy. These clinical features are resemble with previous smoking induced AEP case reports. Base on these clinical features, cigarette smoking associated AEP could be diagnosed more easily.