Elevational Distribution of Breeding Bird Communities in Seoraksan National Park, Korea

Hwang, Hyun-Su,Lee, Jae-Kang,Eom, Tae-Kyung,Bae, Ho-Kyoung,Lee, Dong-Ho,Lim, Jong-Hwan,Jung, Sung-Cheol,Park, Chan-Ryul,Rhim, Shin-Jae Korean Society of Forest Science 2020 한국산림과학회지 Vol.109 No.1

In this study, the elevational distribution of breeding birds in Seoraksan National Park, Korea was investigated. Forty-six species of birds were documented from line transect surveys taken from Seorakdong at 230 m above sea level (a.s.l.) to the Daechungbong summit at 1708 m asl. Birdspecies richness and diversity were highest in Seorakdong and lowest at the Daechungbong summit. As elevation increased, bird species richness and diversity decreased, with a humped-shape trend being observed between 700 m and 1200 m a.s.l. Stepwise analyses revealed that breeding bird species diversity indices were significantly negatively correlated with elevation (r² = 0.327, P < 0.001) and positively correlated with vegetational coverage (r² = 0.324, P = 0.046). Higher elevations supported fewer birds than low and intermediate elevations. Projections at the local scale, including data on behavior and habitat use by birds, will be necessary for optimal conservation and management of the bird communities in Seoraksan National Park.

Elevational Distribution of Breeding Bird Communities in Seoraksan National Park, Korea

( Hyun-su Hwang ),( Jae-kang Lee ),( Tae-kyung Eom ),( Ho-kyoung Bae ),( Dong-ho Lee ),( Jong-hwan Lim ),( Sung-cheol Jung ),( Chan-ryul Park ),( Shin-jae Rhim ) 한국산림과학회(구 한국임학회) 2020 한국산림과학회지 Vol.109 No.1

In this study, the elevational distribution of breeding birds in Seoraksan National Park, Korea was investigated. Forty-six species of birds were documented from line transect surveys taken from Seorakdong at 230 m above sea level (a.s.l.) to the Daechungbong summit at 1708 m asl. Birdspecies richness and diversity were highest in Seorakdong and lowest at the Daechungbong summit. As elevation increased, bird species richness and diversity decreased, with a humped-shape trend being observed between 700 m and 1200 m a.s.l. Stepwise analyses revealed that breeding bird species diversity indices were significantly negatively correlated with elevation (r² = 0.327, P < 0.001) and positively correlated with vegetational coverage (r² = 0.324, P = 0.046). Higher elevations supported fewer birds than low and intermediate elevations. Projections at the local scale, including data on behavior and habitat use by birds, will be necessary for optimal conservation and management of the bird communities in Seoraksan National Park.

광고에서 초상권에 관한 한 연구

박종렬 東新大學校 1996 論文集 Vol.8 No.-

The purpose of this research is to define the right of publicity in the advertising. In addition, the research examined how the right of publicity can be protected in the advertising. On the contrary to the right of privacy, as a personal right, which mainly can be violated by mass media or literary activity, the right of publicity as a right of property can be violated by advertising activities. That is, the right of publicity is a public right, by which an individual can protect his economic interests using his image. Consequently, the individual can demand economic consideration such as indemnity or return of undue profit, when he sees his right of publicity violated. In the United States the right of publicity has been considered a legal right since 1950s. But there have been many complications, until the right of publicity has been approved formally. Recently, the debate on the right of publicity has been classified into two groups; "Who has to be protected by the right of publicity law", and "What has to be protected by the right of publicity law". The right of publicity however, has been sometimes resigned. Few studies and judicial precedents were found that investigated the right of publicity in Korea. In the future, the debate on the right of publicity is expected to expand. Therefore, persons who work in the field of advertising should set interested in the right of publicity issue. In the other hand, the right of publicity law needs to be revised. Furthermore, an agency which could do consultation on the right of publicity or solve the right of publicity issue is necessary.

모유수유 실태에 관한 조사연구 : 경상북도성주군을 중심으로

박천만,김규종,이종렬,김혜진 韓國保健敎育.健康增進學會 2000 보건교육건강증진학회지 Vol.17 No.1

This study to study and analyze the current state of infancy breast-feeding & practice and related factors and to provide basic data for the effective practice of breast-feeding and breast-feeding percentage improvement. For the object, 474 mothers of the infants who were born between Jan. 1, 1998 and Dec. 31, 1998 were selected, and the survey period & method were from Oct. 15, 1999 through Nov. 14, 1999(1 month period) and telephone interview, respectively. To examine by monthly breast-feeding type, the average breast-feeding percentage in 1 month after a child's birth was 42.4%, but after 6 month it decreased to 23.0%. To see breast-feeding percentage by academic background, the breast-feeding of elementary school graduated mothers was 33.3%, which was highest, and it decreased as the academic background of mothers went better(p〈0.01). By employment state the percentage for the mothers who were not employed was higher(24.6%) than that of those who were employed at the time, which was 8.0%(p〈0.001). There was no meaningful difference found in breast-feeding percentage by infant mothers age, delivery place, infant sex, child order in family, weight at the time of birth. To examine breast-feeding percentage by delivery method, natural delivery was 27.0% which was higher that 13.1% of Caesarean section(p〈0.01), and by breast-feeding experience before leaving the hospital, 35.6% of those who have breast-fed were breast-feeding while it was 16.4% for those who never did it while in the hospital(p〈0.001) After conducting logistics multi return analysis having breast-feeding percentage as a variable at the time of 6 months after babys birth, I found that infant mothers employment state, delivery method, and brest-feeding experience before leaving the hospital become meaningful variables. As unemployed mothers(p〈0.05), as chose natural delivery(p〈0.05), as experienced breast-feeding before leaving the hospital(p〈0.001), there was more tendency to do breast-feeding. Summing the above results, I would like to suggest the following to raise breast-feeding percentage. Firstly, systematic education about the importance and advantages of breast-feeding and correct breast-feeding method should be practised for women. Secondly, vacation before and after childbirth for working women should be practised and the support of systems for working womens breast-feeding such as installation of nursery in work place are needed. Thirdly, continuous publicity and education for natural delivery inducement is necessary, and for the ones who chose Caesarean section, recommendation of breast-feeding is also needed. Fourth, for breast-feeding within fastest time after delivery, rooming-in required and legal and systematic support is also needed. Lastly, in the governmental level, publicity for breast-feeding and breast-feeding recommending programs that promotes 10 rules for successful breast-feeding bringing-up, provided by UNISEF and WHO, are to be provided.

고농도 유기성폐수의 처리를 위한 Jet loop bioreactor의 개발

박종탁,류원률 대구보건대학 2000 대구보건대학 論文集 Vol.20 No.-

A jet loop bioreactor was used for the biological treatment of dyeing wastewater. Volumetric oxygen transfer coefficient(k_(La) of jet-loop reactor was significantly larger that of air-lift reactor. When HRT was 48 hours, almost all organics were removed by jet loop bioreactor and the removal efficiencies of BOD, COD_(Mn) and COD_(Cr) were 100, 87.2 and 83.5%, respectively. When HRT was 48 hours, the removal efficiencies of BOD, COD_(Mn), and COD_(cr) were 100, 80.1 and 79.4%. respectively. The specific removal rate was proportionally increased from 0.25 to 1.72 kg COD_(Mn)-removed/kgMLVSSㆍday as specific loading rate was increased from 0.25 to 1.60 kg COD_(Mn)/㎏MLVSSㆍday. Therefore, jet loop bioreactor could treat effectively dyeing wastewater containing high concentration of organic compounds.

Pleurotus sp.를 이용한 Laccase의 생산

박종탁,류원률 대구보건대학 2001 대구보건대학 論文集 Vol.21 No.-

The objective of this study is to investigate optimum condition for laccase production. The white rot fungi Pleurotus sp. and Schizophillum sp. were studied for their abilities to produce laccase. Pleurotus sp. was proven to be excellent in producing lignin peroxidase with high specific activity. The optimum pH, agitation speed, 2,5-xylidine concentration, and temperature conditions for laccase production by Pleurotus sp. were pH 4.5, 200 rpm, 1.0 mM, and 25℃, respectively. For nitrogen sources, ammonium tartrate was good for laccase production, while 0.4% ammonium tartrate concentration showed the highest potential for laccase production. The maximum laccase activity in shaking-flask batch culture were 1,500 U/L. the maximum laccase activity in jar-fermenter culture were 1,700 U/L.

균열저감형 생석회계 바닥마감 모르타르의 배합 및 입도조건 변화에 따른 팽창 및 건조수축특성

이종열,이웅종,박석균 대전대학교 산업기술연구소 1999 산업기술연구소 論文集 Vol.10 No.2

The cement based mortar is typically used as the surface finishing material for apartment floor. By the way, the crack is easily appeared with the lapse of time in this floor mortar because of the shrinkage effect of the cement. In our country, the most popular expansive additive is hauyne(CSA) or free lime(free-CaO) system. The types of shrinkage in the surface finishing mortar is known as plastic shrinkage, dry shrinkage and autogenous shrinkage. In this study, the expansive properties of the free lime system with various size distribution is analyzed. In particular, the experiment for the expansive properties is carried out by using the soundness molds and with various humidity and dry setting conditions. In addition, the difference of dry shrinkage properties between the cement with expansive additives and OPC is investigated under different conditions of water/cement ratio and sand/cement ratio.

공기 정압 저어널 베이링에서 동강성 측정에 관한 실험적 연구

이종렬,이준석,이득우,김태형,박보선 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-

This paper has been presented the dynamic effect by the journal speed, eccentricity and source positions in order to overcome the defects of air bearing such as low stiffness and damping coefficient. Choosing two row sources position of air bearing is different from previous investigations in the side of pressure distribution of air film by the wedge effects. An experimental study was performed to compare theoretical analysis. The dynamic stiffness was measured in actual cutting. It helps predicting of air spindle's characteristic in machining of die more precisely. The results of investigated characteristics was applied to air spindle for high speed milling.

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.

LCD 백라이트 도광판의 패턴 설계

사종엽,박종렬 嶺南大學校 工業技術硏究所 2003 工業技術硏究所論文集 Vol.31 No.1

LGP(Light-Guide Panel) of LCD backlight is one of the most important components which affect on the product quality of LCD. Since the light characteristics of LGP is sensitive to the process error in manufacturing, the reflection and absortion of LGP pattern should be modelled in consideration of the process errors. The process-error-adaptive design gives the best solution in handling the process errors. The offset of target in feedback system makes such the best pattern design possible that the brightness distribution of backlight is nearly the same (more than 90%) as target distribution in regardless of the miscellaneous errors in mass production.