Polarograph법에 의한 Cadmium-Acetato Complexes에 관한 연구

황정의,정종재,손무룡,박유철 慶北大學校 1969 論文集 Vol.13 No.-

HAc와 NaAc용액을 혼합한 완충용액에서 Hume과 DeFord의 Polarograph 법으로Cadmium의 Acetato Complex의 안정도상수 및 그 조성을 Ion 강도 0.4, 0.7 및 2.0와 15℃, 20℃, 25℃ 및 30℃ 의 온도에서 각각 측정하였다. 초산Ion의 농도가 약 0.2 mole/ℓ 이상에서는 CdA_c^+, CdA_c2 및 CdA_c3- 3종의 착체가 존재하나 약 0.2 mole/ℓ 이하에서는 CdA_c3- 착체는 존재치 않는다. 실험범위내에서 측정된 안정도 상수(K_ijk)와 (T_k)사이에는 Log K_ik=A_i/T_k+B_i란 일반식이 성립하여 안정도상수와 Ion강도 (μj) 사이에는 LogK_ij=A_iμj+B_i란 일반식이 주어짐을 알았다.

중년 여성에서 발생한 집합관 신세포암 1 예

황인성;정재현;유지형;성락희;노충희;정재용;김현정 인제대학교 2011 仁濟醫學 Vol.32 No.-

Collecting duct renal cell carcinoma (CDRCC) or Bellini duct carcinoma is a rare type of renal cell carcinoma (RCC), accounting for 0.4% to 1.8% of all RCC. CDRCC is considered to originate from the collecting duct of the kidney and it has a poor prognosis. However, the clinical features of CDRCC remain poorly understood, mainly because only studies with a small series or case reports have been published to date. We experienced a case of CDRCC of kidney.

양방향 요소제거법을 이용한 신뢰성 기반 최적설계

유진식,박재용,황승민,임민규,오영규,한석영 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

This research presents a Reliability-Based Topology Optimization (RBTO) using Bi-directional Evolutionary Structural Optimization (BESO). An actual design involves uncertain conditions such as material property, operational load and dimensional variation. Deterministic Topology Optimization (DTO) is obtained without considering of uncertainties related to the uncertainty parameters. However, RBTO involves evaluation of probabilistic constraints, which can be done in two different ways, the reliability index approach (RIA) and the performance measure approach (PMA). The reliability index approach (RIA) and the performance measure approach (PMA) are adopted to evaluate the probabilistic constraints. In order to apply the BESO method to the RBTO, sensitivity number is defined as the change in the reliability index due to the addition or the removal of the ith element. In the BESO, a mesh-independency filter using nodal variables is used to remove the checkerboard patterns. The optimal topologies of RIA and PMA are obtained very similarly. It is shown that RBTO based on BESO can be effectively applied from the presented examples.

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.

낙동강 하구에 도래하는 철새들의 분포 연구

함규황,유재평 경남대학교 환경문제연구소 1993 환경연구 Vol.15 No.-

This report was survey conducted on the distribution of migratory birds in the estuary of Naktong-river from February, 1988 to December, 1990. 1. During the 35 months survey period a total of 321,336 individuals, 82 species, 17 families, 10 orders were observed. 2. Species of dominance were observed in the order of Mallard, Anas platyrhynchos (27.63%), Black-tailed Gull, Larus crassirostris (9.11%), Pochard, Aythya ferina (8.74%), Black-headed Gull, Larus ridibundus (6.49%), Bean Goose, Anser fabalis (5.44%), Wigeon, Anas penelope (5.97%), Spot-bill Duck, Anas poecilorhyncha (5.34% ) 3. Density of individuals to a square kilometer at the brackish and fresh water were recorded by a high density respectively to Mallard and Pochard. 4. Among observation birds throughout the two winter (1988. 10~1989. 3, 1989. 10~1990. 3), the speceis of ANATIDAE was recordedby the respectively to 21 species, 77,979 individuals (76.89% ) and 20 species 52,188 individuals (68.32% ). 5. Average of species diversity(H') and number of equally common species(eH') were recorded by a high value respectively to 1990 (1.983) and 1955(7.798).

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.

L1210 세포증식에 대한 Glycyrrhizin의 억제작용 기전

殷載淳,徐龍勳,權鎭,柳東和,吳贊鎬,蘇俊魯,全焄,黃甲洙 우석대학교 의약품개발연구소 1996 藥學硏究誌 Vol.1 No.-

The purpose of this research was to investigate the mechanism of inhibitory action of Glycyrrhizin(GZ) on the proliferation of mouse leukemia cell-line, L1210 cells. The cytotoxic activity was tested using a colorimetric tertrazolium assay(MTT assay), the apoptosis was tested using flow cytometry. Nitric oxide(NO) production form mouse peritoneal macrophage was tested using a Griess method and the phagocytosis of human polymorphonuclear cells was tested using a lucigenin chemiluminescence. GZ ingibited the proliferation of L1210, BALB/c 3T3 cells and mouse thymocytes at 50 ug/ml/ GZ did not affect nitric oxide production from mouse peritoneal macrophages in vitro, but ingibited nitric oxide production from lipopolysaccharide and y-interferon treated macrophages. Macrophages of GZ-administered mice accelerated NO production. The proliferation of L1210 cells apoptosis of L1210 cells were induced by co-culture with macrophage of GZ-administered mice. The apoptosis of L1210 cells were induced by co-culture with macrophage of GZ-administered mice. GZ increased the phagocytosis of human polymorphonuclear cells. These results suggest that GZ inhibit the proliferation of L1210 cells not only as a direct cytotoxic agent o tumor cells, but also by the enhancement of NO production and phagocytic activity.

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.

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.

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.