고성군 덕명리 일대 공룡 생흔 화석 산지의 자연탐사와 교재화를 위한 연구

백광석,정호종,서승조,정우규 晋州敎育大學校 科學敎育硏究所 1994 科學敎育硏究 Vol.20 No.-

경남 도내 고등학생들을 대상으로 실시한 고장 자연 탐사에서 덕명리 해안의 지질과 교육적 활용성을 조사한 결과는 다음과 같다. 1. 덕명리 해안의 지층은 진동층에 속하며 공룡과 조류의 족혼 화석, 연혼, 건열, 화성암의 관입 등의 관찰되고 해식애, 해식동, 해식대가 발달하였다. 2. 공룡 족혼 화석은 2족보행 공룡인 Theropod 와 Ornithopod 및 4족보행 공룡인 Sauropod의 것으로 추정되었다. 3. 본지역의 특징은 중학교 과학 및 고등학교 과학 I 하와 지구과학 교과의 침식 . 운반 . 퇴적작용, 지층과 화석, 지질시대의 환경과 생물, 우리나라의 지질 등의 단원에 좋은 야외 지질교재이다. 4. 내 고장 자연 탐사교육은 학생들에게 학습의 동기와 흥미를 유발시킬 수 있는 대단히 유요한 프로그램이었고, 설문 조사 등 분석결과에 의하면 과학 교육적 성과도 있었다.

VDT작업별 정신사회적 스트레스와 근골격계 장애에 관한 연구

백남종,강종두,주영수,배인근,권호장,박종만,조수헌,김돈규,김재용,최홍렬 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.4

It has been hypothesized that jobs that have both high psychological demands and low decision latitude("job strain") can lead to musculoskeletal disorder. The objective of this study was to test whether job strain was correlated with the presence of work-related musculoskeletal disorder, especially myofascial pain syndrome(MPS). Information on demographic factors, confounders such as household load and taking care of children or not, and scores for decision latitude, job demand, and social support was obtained by self-administered questionnaire, which had been developed in Korean language, by adopting NIOSH instrument and Extended Karasek Model(16 items). All subjects were also examined by rehabilitation medicine specialists for musculoskeletal disorders. Subjects(n=370) could be categorized into 4 groups, these were, housewives(n=89), shipyard CAD workers(n=89), general female workers(n=79; nurses, insurance counselors, public officials, clerks, etc), and telephone directory assistance operators(n=113). Results from univariate analyses indicated that all demographic factors, all confounders, scores for decision latitude and social support were not associated with the risk of musculoskeletal disorder. However, score for job demand was higher in musculoskeletal disorder cases than others. In subgroup analysis, this association was convinced again, in telephone directory assistance operators. Job strain model showed that the group of telephone directory assistance operators was high-stain group, and OR of musculo skeletal disorder was 2.446(95% C. I. : 1.174, 5.096), when comparing this with the low strain group. In conclusion, job strain is a risk factor for work-related musculoskeletal disorder.

레슬링선수들의 체중감량에 따른 섭취열량과 신체조성의 변화

백영호,염종우,염원상,김세종,서혜림 부산대학교 체육과학연구소 2000 體育科學硏究所 論文集 Vol.16 No.-

This study was to find out calorie intake and body composition changes in accordance with weight loss of wrestlers. The wrestlers were divided three groups : no weight loss groups, 5∼7% weight loss group and over 7% weight loss group. And they were observed three : before weight loss, at measuring weight and before games. The following are the conclusion of this study: 1.The changes of calorie intake 1) Before weight loss, the percentage of the daily intake to the daily energy expenditure was 57.7% for the no weight loss group, 47.2% for the 5%∼7% weight loss group and 53.7% for the over 7% weight loss group. 2) The calorie intake of each group per meal: the no weight loss group intake 1,118kcal before weight loss, 760.9kcal before weight measurement and 1026.8kcal from after weight measurement to before games, and the 5∼7% weight loss group intake 955.4kcal before weight loss, 483.1kcal before weigh measurement and 880.4kcal from after weight measurement to before games, and the over 7% weight intake 959.3kcal before weight loss, 339.4kcal before weight measurement and 872.7kcal from after weight measurement to before games. 3) The ratios of calorie intake(protein : fat : glucose) : the no weight loss group showed 16.7∼35.1% : 20.8∼23.8% : 44.1∼60%, the 5∼7% weight loss group showed 15.5∼26.6% : 22.2∼23.7% : 50.6∼62.3% and the over 7% weight loss group showed 15.0∼30.2% : 19.6∼27,6% : 50.7∼59 4%. 2.The changes in body composition 1) After weight loss, weight and BMI changes in accordance with weight loss among groups showed meaningful differences in all circumstances : weight, before games versus at measuring weight and before weight loss versus before games.(p≤.001) 2) In the changes of total body water, protein, mineral, fat mass and %fat in accordance with weight loss among groups, when we compared those of before games with those of at measuring weight, we found that the over 7% weight loss group showed a meaningful increase over the no weight loss group.(p≤0.5) 3) In the changes within groups, though we found no meaningful difference, total body water, protein and mineral of before games were less than those of before weight loss, and fat mass and %fat of before games were higher than those of before weight loss. According to the results of this study, the wrestlers lost their weights intensively in three days before games by eating less and when lean body mass was restored, the level was lower than before weight loss. Therefore, these results intake the weakness of exercise capacity, long-term weight loss plan is more helpful than short-term weight loss, and for the enhancement of exercise capacity systematic plan and training of the weigh loss should be done.

운동시 성장호르몬 대사에 관한 고찰

백영호,염종우,서혜림 부산대학교 체육과학연구소 2000 體育科學硏究所 論文集 Vol.16 No.-

Through the literature study of the effects on the growth hormone metabolic of exercises, we had a conclusion as follows: 1.During exercises, growth hormone secretion has a variable of exercise Intensity and time, secretion threshold of growth hormone by exercises has a constant latency period of 15∼20 minutes after beginning exercise, and growth hormone secretion reacher to maximum after 30 minutes of the maximum exercises. 2.There are more or less differences of time, but amount of secretion of the growth hormone is shown to be similar according to the gender. 3.Injection of the growth hormone to the elders is shown to be most effective in the case of accompanied with exercises. 4.Because exercises causes the natural secretion of the growth hormone and the metabolic, the constant exercises are needed regardless of ages.

노화와 간경변이 인체의 적혈구, 혈장 및 위 점막의 Glutathione 농도와 Glutathione Peroxidase 활성도에 대해 미치는 영향

백광호,김종혁,백일현,한태호,박현주,박상훈,서중산,박충기,유재영 대한노인병학회 2001 대한노인병학회지 Vol.5 No.3

울산연안 定置網에 어획된 漁類의 종조성 및 양적변동

한경호,김종헌,백승록 한국어류학회 2002 韓國魚類學會誌 Vol.14 No.1

울산 정자연안 외측에 위치한 정치망에서 1998년 2월, 4월 ,6월 ,8월 10월 및 12월, 총 6회에 걸쳐 어획물을 채집하여, 魚類의 種組成, 量的變動 및 群集構造에 대하여 연구하였다. 채집된 어류는 총 12目 45科 89種, 62,978개체였고, 총 생체량은 6,494㎏이였다. 농어目 어류와 쏨뱅이目 어류가 총 56種으로 전체 出現種數의 62.9%를 차지하여 가장 우점하는 目들로 나타났으며, 科別로는 전갱이科와 참복科 어류가 각각 7種 出現하여 가장 많은 種이 出現하였다. 총 89種의 어류중 個體數는 고등어, 전갱이, 멸치 및 말쥐치의 4種이 全個體數의 89.7%를 차지하여 우점하였다. 生體量은 고등어, 전갱이, 꽁치, 말쥐치, 전어, 꼬치고기, 멸치, 정어리, 임연수어 및 덕대의 順으로 이들 10種이 全生體量의 95.5%를 차지하여 우점하였다. 出現 個體數와 生體量은 고수온기인 여름에 높게 나타났으며, 저수온기인 봄과 겨울에 낮게 나타나 수온과 밀접한 관계가 있었다. 월별 出現種數는 2월과 10월에 비교적 적은 種이 출현하였으며, 4월에 49種, 6월에 50種이 나타나 가장 많은 種이 출현하였고, 8월에 46種, 12월에 44種이 出現하였다. 종다양도지수(H')와 0.693~2.146으로 4월에 가장 높은 값을 보였고, 8월에 가장 낮은 값을 보였으며, 우점도지수는 다양도지수와 반대로 4월에 가장 낮은 값을 8월에 가장 높았다. 주요 魚種의 出現頻度를 보면 고등어, 전갱아. 멸치, 말쥐치, 꽁치, 전어, 망상어 및 정어리가 거의 年中 出現하여 본 해역에서의 주거종이었다. Fishes were collected by set net to determine seasonal species composition and fluctuation in abundance in coastal waters of Ulan. Korea, in February, April, June, August and December, 1998. A total of 62,978 fishes (6,494㎏) were sampled and classified into 12 orders, 45 families and 89 species. The most dominant orders were Perciformes and Scorpaeniformes, which accounted for 62.9% of the total. The most dominant families were Carangidae and Tetraodontidae, each represented seven species. The most dominant species were Scomber japonicus, Trachurus japonicus, Engraulis japonicus and Maurolicus muelleri, which accounted for 89.7% of the total fishes collected. The most dominant in biomass were Scomber japonicus, Trachurus japonicus, Cololabis saira, Thamnaconus modestus, Konosirus punctatus, Sphyraena pingues, Engraulis japonicus, Sardinops melanostictus, Pleurogrammus azonus and Pampus echinogaster. Those species together accounted for 95.5% of the total biomass. The number of individuals and the biomass were much higher in summer than in spring and winter, and closely correlated with water temperature. The number of species showed a peak in August, with 46 species, and the lowest number in February, with 30 species. The diversity index was the highest in April(H'=2.146) and the lowest in August(H'=0.693).

순무(Brassica campestris ssp. rapa) 뿌리로부터 지질화합물의 분리 및 동정

방면호,오영준,유종수,한민우,정해곤,정태숙,최명숙,이경태,김세영,백남인 경희대학교식량자원개발연구소 2007 硏究論文集 Vol.26 No.1

순무 뿌리로부터 활성 물질을 분리 동정 하기 위하여 80% MeOH 수용액으로 추출하고 이를 여과, 감압 농축하여 MeOH추출물을 얻었다. 이를 EtOAc분획, n-BuOH분획, H_(2)O분획으로 나누었으며, EtOAc분획에 대해 silica gel column chromatography를 실시하여 3종의 지질화합물을 분리 정제하였다. ^(1)H-NMR, ^(13)C-NMR, DEPT spectrum 및 Mass spectrum등을 통하여 palmitic acid methyl ester(compound 1), linolenic acid methyl ester(compound 2), linoleic acid methyl ester(compound 3)으로 구조를 결정하였다. In order to isolate and identify the active compound from the Brassica campestris ssp rapa, the roots and the root skin were extracted with 80% aqueous MeOH, and the concentrated extract was partitioned with EtOAc, n-BuOH and H_(2)O. From the EtOAc fraction, three compounds were isolated through the repeated silica gel column chromatographies. From the result of spectral data including NMR and MS, the chemical structures of the compound were determined as palmitic acid methyl ester (compound 1), linolenic acid methyl ester (compound 2), linoleic acid methyl ester (compound 3).

싸주아리쑥(Artemisia herba)으로부터 phytol의 분리

유종수,방면호,정해곤,정태숙,최명숙,이경태,백남인 경희대학교식량자원개발연구소 2006 硏究論文集 Vol.25 No.-

싸주아리쑥 지상부의 80% MeOH 추출물로부터 얻어진 EtOAc 분획물에 대하여 silica gel 및 ODS column chromatography를 반복하여 diterpene을 분리하였다. 화합물의 화학구조는, NMR, MS 및 IR 등의 스펙트럼을 해석하여 phytol로 동정하였다. The aerial part of Artemisia herba was extracted with 80% aqueous MeOH and the concentrated extract was partitioned with EtOAc, n-BuOH and H_(2)O, successively. From the EtOAc fraction, a terpenoid was isolated through the repeated silica gel and ODS column chromatographies. From the result of physico-chemical data including NMR, MS and IR, the chemical structure of the compound was determined as phytol.

감초 추출물이 면역응답에 미치는 영향

심호기,백반석,황성원,배만종 경산대학교 생명자원개발연구소 1996 생명자원과 산업 Vol.1 No.-

감초에서 분리한 각각의 추출물(HWE, ME, AE)을 BALB/c mouse에 투여하여 탐식작용, 용혈반형성, 용혈소 역가특정 및 Rosette형성 실험을 통해 감초가 면역응답에 미치는 영향을 조사하였다. 1. 탐식능 측정에서 복강침출세포(PEC)와 비장세포(spleen cell)는 CON군에 비하여 가각의 약물투여군이 Candida parapsilosis에 대한 효과가 약간 높은 경향을 나타냈지만 유의성은 없었다. 2. 용혈반 형성 및 용혈소 역가측정에서는 CON군에 비하여 HWE, ME, AE투여 군이 유의성을 나타냈다. 3. Rosette형성에 대한 측정에서는 CON군에 비하여 ME, AE투여 군이 높은 유의성을 나타냈다. 본 실험 결과에서 감초 추출물들은 Candida paraprapsilosis에 대하여 약간의 탐식증진효과를 나타냈으며, 항체생성세포의 용혈반 시험 및 용혈소 역가측정과 Rosette형성측정에서의 유의성을 나타낸 것은 감초가 세포성 면역을 주도하는 T세포를 활성화시킬 뿐만 아니라, 체액성 면역을 주도하는 B세포를 활성화시킨다는 것을 확인 할 수 있다. The inverstigation of effecting immune response on BALB/c mouse was experimented with hot water extract(HWE), 50% methanol extract(ME) and aaceton extract(AE) 〔which was extracted from Glycyrrhiza glabra〕. The experiment was carried out by phagocytosis, hemolytic plaque assay, hemolysin titration and rosette assay. Peritoneal exudative cells and spleen cells in phagocytosis ability; the experimental group has shown a slight increase in Candida parapsilosis(HWE, ME & AE). The experiment shows no relevant correlation. The experiment of hemolytic plaque assay and hemolysin titration was treated by HWE, ME and AE. The experimental group was treated by ME and AE through the measurement of rosette assay. The experimental group has given significant increase compared with the control. As the result, the extracts of Glycyrrhiza glabra (HWE, ME and AE) has effedted slightly to Cnadida parapsilosis in phagocytosis. The reason of effecting the immunocyte in hemolysin titration, rosette assay and hemolytic plaque assay ; Glycyrrhiza glabra has activated the T-cell which controlled cell mediated immunity. Same with B-cell which could also control humoral immunity.

도심지 이동통신 신호 예측을 위한 회절 경로의 선행추적

鄭白鎬,李鎬俊,李種瑞 호서대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.19 No.-

Predetermination of diffracted rays to predict signal propagation in urban mobile commumication environment is proposed. This technique shows significant improvement in CPU time compared with conventional ray tracing method, and can be applied to any complex propagation environment composed of arbitrarily shaped buildings and streets. The predictions of this method are in good agreement with the measurement made in Tokyo and Ottawa.