• 한국환경농학회지
• /
• 제17권4호
• /
• pp.352-357
• /
• 1998

양액조성의 차이에 따른 토마토의 오존 감수성을 구명하고자 1/2농도의 Hoagland 용액을 표준으로 하여 양액을 조성하였다. N-P-K의 수준을 $N_{100}$ $P_{100}$ $K_{100}$(대조구), $N_{47}$ $P_{100}$ $K_{100}$(질소 감량구), $N_{93}$ $P_0$ $K_{100}$(인산 제거구), $N_{100}$ $P_{100}$ $K_0$(칼륨 제거구), $N_{153}$ $P_{100}$ $K_{100}$(질소 중량구), $N_{107}$ $P_{200}$ $K_{100}$(인산 2배구), $N_{140}$ $P_{100}$ $K_{200}$(칼륨 2배구) 등으로 나누어 수경재배한 후 $0.25{\mu}l/L$의 오존에 접촉시킨 결과 다음과 같은 결론을 얻었다. 1. 지상부 생육은 질소 감량구와 인산 제거구에서 가장 저조하였고, 인산 및 갈륨 제거구에서 인산가 칼륨의 엽중함량이 극히 낮았다. 시비수준의 차이에 따른 가시피해율은 칼륨 제거구에서 가장 심하게 나타났다. 인산 제거구, 질소 감량구 및 중량구 또는 인산과 칼륨 2배구의 피해율은 표준구와 비슷한 경향을 보였다. 2. 오존접촉 후 칼륨 제거구에서 다른 처리구에 비하여 ethylene발생량, 전해질 유출량과 MDA함량이 증가하였으며 엽록소의 함량은 크게 감소였다. 3. 가시피해가 가장 심했던 칼륨 제거구에서 SOD의 활성이 가장 낮았으며 오존접촉 후에도 활성 증가율이 가장 낮게 유지되었다.

• 패션비즈니스
• /
• 제12권4호
• /
• pp.28-45
• /
• 2008

The purpose of this study is to diagnose actual condition of preference of hair-styling, hair-styling techniques, management, grasping a consumer's consciousness, etc with women living in a city. The survey was gotten to a feminine customer who visited the ten of beauty-shops in shopping center. And statistical data about the actual condition of hair-styling preference realities, hair-styling method and style management was entered into the SPSS statistics analysis system. In brief, be as follows by the results of study. There showed significant difference that noted in hair-style information and basis alternative a beauty salon, there were able to know people whose age is from 20's to 40's got mainly an influence of public media very much and from 40's to 50's got mainly an influence of people around them. Basis alternative of a beauty salon showed significant difference to follow age categories. It appeared that introducing from people around them have a effect on the 20's and 30's, and 40's got an influence of convenience of traffic, and 50's got mainly the shortest distance. In an attitude toward a hair style, especially toward hair cut, a case to do hair cut was most a lot of in own selections, and its result was independent of age categories. The reason that wants to give a chance was most a lot of thinking without an age. Preference length of hair cut showed a significant difference according to age. In permanent section, own selections appeared most regardless of age. And in the permanent motive, also, to have a change appeared most regardless of age. And people had a preference natural to role up to setting regardless of age in permanent wave. In hair color section, women whose age is 20's, 30's, 40's had a motive for a change, on the other hand, 50's and their senior had a motive for a gray hair. Women of all over the age almost knew a fashion color, and they had a preference brown color. In a preference way along a hair color kind, there was a significant difference according to age, also. 20's and 30's did mainly 'semi-permanent coating' and 40's and 50's did mainly 'permanent hair color'. In a attitude about a hair-style management, the more age is young, the more a period is long term. And the more age is old, the more the outlay for price of cut is expensive. But, on the contrary, permanent price showed that the more age is young, the more the outlay for price of permanent is expensive. In hair color, the more age is old, the more a period is short and the more price is low.

• 유통과학연구
• /
• 제14권5호
• /
• pp.71-80
• /
• 2016

Purpose - In case of automobile parts, there has been a lot of progress in the study on supplier development plans and SCM in industrial progress study as well as on the relationship between ERP and SCM. But supplier development program providers have researched on SCM performance in accordance with the interests of the supplier development program most, thus, buyers were knowledgeable about the earlier program performance. Therefore, the purpose of this study is to prove correlation factor, supplier factor, purchaser factor affecting SCM performance and ERP activating diffusion through the process of supplier development. Supplier development maturity formation model is considered important variables as mediators related to the procedure. Finally, the performance formation model of the supplier development maturity through supplier development factor would be presented as the outcome of this study. Research design, data, and methodology - Data gathering was as follows: questionnaires were delivered to 87 companies that have business connection with H Company. The empirical research to test our hypothesis was grounded on statistical analysis (adapting SPSS 19.0 & AMOS 19.0). The hypothesis is that the supplier development factor variables consist of correlation factor, supplier factor, purchaser factor, and have non-negative effects on the next variables: mediators such as supplier development maturity; and the supplier development maturity variables have a positive effect on the next variables: ERP activating diffusion, ERP activating diffusion has a non-negative effect on supply chain performance. We experimented the hypothesized model using path analysis with latent variables. Results - First, it was known that cooperation

, reliability

, comprehension on the purpose of SDP

, adaptation of change

, knowledge transfer program

, have significant positive effects on supplier development maturity. Second, supplier development maturity has positive effects significantly on ERP activating diffusion

. Finally, the causal relationships from ERP activating diffusion to SCM performance were significantly accepted. Its significance, as through the hypotheses, presented a structural model for the elaboration, suppliers develop maturity, and ultimately SCM performance that affect ERP leveraging spread beyond the concept of maturity of information system. Therefore, it was a mainstay of research on the existing ERP has they believed. Conclusion - First, with the fast changes in business circumstances, company should get the right information to implement SCM appropriately. For successful SCM, firms should understand the supplier development maturity formation and ERP activating diffusion. Second, supplier development factor has significant effects on supplier development maturity. Third, mediator such as supplier development maturity significantly affects ERP activating diffusion. Finally, ERP activating diffusion has significant impacts on SCM performance. This study makes a meaningful contribution to further appreciation on how supplier development maturity formation affects SCM performance. This study shows implications. First, there would not have been dealt with introducing the concept of supplier development maturity. Second, through empirical analysis and provider factors, the providers will develop the maturity that affect interactive factors between purchaser and supplier.

• 유통과학연구
• /
• 제12권10호
• /
• pp.85-97
• /
• 2014

Purpose - This study aims to clarify through which process asset specificity and supplier development project (SDP) affect performance. Cooperation, partnership, the level of information exchange, and the importance of information sharing are considered significant variables as mediators related to the process. Finally, the performance formation model of the supply chain through asset specificity and supplier development project would be suggested as being a result of this study. Research design, data, and methodology - Data collection was as follows: questionnaires were distributed to 250 companies that have business ties with H Company. The empirical study to test our hypothesis was based on statistical analysis (using SPSS 19.0 and AMOS 19.0). The hypothesis of this paper is that the asset specificity and supplier development project variables have positive effects on the following variables: mediators such as cooperation and partnership (reliability and dependence); and the cooperation and partnership variables have a positive effect on the following variables: level of information sharing, the importance of information sharing, and level of information sharing; the importance of information sharing has a positive effect on supply chain performance. We tested our hypothesized model utilizing path analysis with latent variables. Results - First, it was found that asset specificity has significant positive effects on cooperation (H1), reliability (H2), and dependability (H3). Second, it was proved that the level of comprehension on the purpose of SDP has positive effects significantly on cooperation (H4), reliability (H5), and dependability (H6). Third, the hypotheses related to cooperation were all significantly accepted. The relationships of cooperation with the level (H7) and importance (H8) of information sharing were significant. Fourth, the hypotheses related to reliability were all significantly accepted. The relationships of reliability with the level (H9) and importance (H10) of information sharing were significant. In terms of dependability, however, the hypotheses were partially accepted. The effect of dependability was significant on the importance of information sharing (H12), but insignificant on the level of information sharing (H11). Finally, the causal relationships from the level of information sharing to SCM performance (H13) and from the importance of information sharing to SCM performance (H14) were both significantly accepted. Conclusion - First, with rapid changes in the business environment, enterprises should acquire the right information to properly implement SCM. For successful SCM, firms should understand the supplier development project. Second, asset specificity and the level of comprehension on SDP have significant effects both on cooperation and partnership (reliability and dependability). Third, mediators such as cooperation, reliability, and dependability significantly affect the level and importance of information sharing. Fourth, the level and importance of information sharing have significant impacts on SCM performance. This paper makes a meaningful contribution to further the understanding of how SDP affects SCM performance. Finally, successful SCM performance is achieved by information sharing through a collaborative environment and partnership (confidence & dependence) rather than by investing only in setting up an information system.

• 한국학교보건학회지
• /
• 제11권1호
• /
• pp.27-50
• /
• 1998

Adolescent health is considered to contribute to health promotion in the home and community in the near future as well as individual health. However, adolescent health has been neglected from education field because of competitive school education focused on the university entrance examination That's why I suggest in this study that we should pay much more attention to adolescent health condition and try to make It better, in terms of man-power development and life-health promotion for nation development The purposes of this study are as follows First, to look into a variety of adolescent health problems Second, to find out the situation and problems of current adolescent health promotion and school health education Third, to make an effort to find, based on the current situation, various developments of adolescent health promotion and school health education in terms of practical, political and environmental change There are used study methods as adolescent-related, school heath-related literature review and anlysis of statistical data The results and suggestions are as follows Teenagers have a great variey of health problems including most Important physical, mental and social developments Recently, chronic diseases, emotional problems, health-risk behaviors linked With adolescents are on increase The complicated disorders of physical, mental, social health rather than paricular aspects of health or health-behavior problems influence adolescent health problems adolescence is regarded as the period when most health-related behaviors are formed. Therefore, adolescent health promotion would he assured by developing the ability of controlling multi-dimensional health determinants in the early stage. Health promotion is a positive concept that each individual, family and community makes real efforts to improve their health To achive this, we need health educational, organizational, political and environmental supports. Adolescent health promotion in Korea has been systematically treated in the category of school health Current school health services have had lots of systemic, constitutional, administrative and educational flaws Accordingly, I'm concerned that we can afford to accept a variety of adolescent health needs However, I would say that if were not to make those flaws better, it's certain that Korean national competitive power and the quality of the lives of most Koreans Will he threatened someday We have to develop Comprehensive School Health Crriculum(CSHC) and set up its standards to Improve adolescent health. CSHC is an organizational and costant process. CSHC means an Important part of overall curriculums. In addition, I could say that it's an Important school health education acivity including current school health services-health care service and school health environment. In conclusion, in order to develop CSHC, we require school nurse's role changes, establishment and management of intergrated subject of health education, striking revision of school health law(or legislation of school health promotion law), reorganization of administration system, big changes in curriculum for school health educators.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• 제18권2호
• /
• pp.123-129
• /
• 2007

Objectives: Autism is a complex neurodevelopmental spectrum disorder with a strong genetic component. Previous neurochemical and genetic studies have suggested the possible involvement of the serotonin system in autism. Tryptophan 2,3-dioxygenase(TDO2) is the rate-limiting enzyme in the catabolism of tryptophan, which is the precursor of serotonin synthesis. The aim of this study was to investigate the association between the TDO2 gene and autism spectrum disorders(ASD) in a Korean population. Methods: The patients were diagnosed with ASD on the basis of the DSM-IV diagnostic classification outlined in the Korean version of the Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule. The present study included the detection of four single nucleotide polymorphisms(SNPs) in the TDO2 gene(rs2292536, rs6856558, rs6830072, rs6830800) and the family-based association analysis of the single nucleotide polymorphisms in Korean ASD trios using a transmission disequilibrium test(TDT) and haplotype analysis. The family trios of 136 probands were included in analysis. 87.5% were male and 86.0% were diagnosed with autism. The mean age of the probands was $78.5{\pm}35.8$ months(range: 26-264 months). Results: Two SNPs showed no polymorphism, and there was no significant difference in transmission in the other two SNPs. We also could not find any significant transmission in the haplotype analysis(p>.05). Conclusion: We could not find any significant statistical association between the transmission of SNPs in the TDO2 gene and ASD in a Korean population. This result may not support the possible involvement of the TDO2 gene in the development of ASD, and further exploration might be needed to investigate other plausible SNP sites.

• 한국지구과학회지
• /
• 제31권4호
• /
• pp.335-347
• /
• 2010

이 연구에서는 기상청에서 관측한 최근 7년(2002-2008)간의 낙뢰자료를 이용하여 남한지역에서 발생한 구름-지면 낙뢰 현상의 극성별 시 공간적 특성을 분석하였다. 낙뢰빈도는 극성에 관계없이 강한 경년변동, 계절변동 및 일 변동을 보이고 있다. 낙뢰빈도는 여름과 겨울에 각각 최대(74%) 및 최소(0.6%)를 보이고 있다. 또한 계절과 극성에 따라 다르지만 낙뢰는 평균적으로 새벽과 오후에 최대로 발생하는 일 변동을 보이고 있다. 정극성 비율(정극성/부극성)은 여름에 7.3%로 낮으나 겨울에는 62.5%로 강한 계절 변동을 보이고 있다. 낙뢰강도는 경년 및 일 변동은 거의 보이지 않고 있으며 낙뢰가 많이 발생하는 여름에 약하고 낙뢰가 적게 발생하는 겨울에 강한 계절 변동을 보이고 있다. 또한 정극성 낙뢰강도는 강한 계절 변동을 보이는 반면 부극성은 상대적으로 약한 계절 변동을 보이고 있다. 낙뢰밀도는 영동과 동해 지역보다 서부 내륙 및 서 남해상에서 높게 나타나고 있다. 낙뢰강도의 경우 극성에 관계없이 내륙에서보다 바다, 특히 동해상에서 강하게 나타나고 있다.

• 한국지리정보학회지
• /
• 제20권2호
• /
• pp.32-46
• /
• 2017

최근 급격한 도시팽창 및 각종 산업시설의 밀집화는 도심지역의 지형지물 변화에 많은 영향을 줌으로써 한 지역에 다양한 높이의 건축물 또는 평지와 산지가 함께 존재하는 현상을 초래하였다. 본 연구에서는 내풍설계 시 중요한 인자인 풍속고도분포계수를 산정하기위해 건축물의 높이별로 공간정보 기반 밀집도 분석을 활용하여 지표면조도를 구분하고자 한다. 공간데이터의 확보를 위해 수치지형도에서 건축물 레이어를 추출한 후, 밀집도 분석을 위한 방사형 방안을 생성하였으며, 방안별로 건축물 높이별 도수분포 현황을 조사하였다. 건축물의 분포도를 통해 VMR(Variation-to-Means Ratio) 및 포아송분포 분석을 진행함으로써 높이별 밀집도를 판정하였으며, 카이제곱 검증을 통해 통계적 유의성을 확인하였다. 공간정보 분석을 바탕으로 GIS를 이용하여 연구를 진행함으로써 기존의 다소 정성적, 주관적인 방법에서 벗어나 지형 지물을 반영하여 보다 정량적, 객관적인 풍속고도분포계수의 산정이 가능하였다. 본 연구를 통해 설계자의 주관에 따라 풍속고도분포계수가 산정되는 기존의 문제점을 해결하고 보다 합리적인 내풍설계에 기여할 수 있을 것으로 기대된다.

• 한국학교수학회논문집
• /
• 제14권4호
• /
• pp.423-442
• /
• 2011

연구의 목적은 ICME(2008,Mexico) 모델링 TSG21에서 논의한 모델일의 두 과제 설정 MMa, MeA이 학교수학에 효율적으로 적용이 될 수 있는지를 알아보는데 있다. 이 실험에서 수학과 교육과정에 적용할 수 있는 몇 가지 중요한 점을 발견했는데, 첫째는 MMa집단이 통제집단 IPS에 모델링 문항에서 성취도에 우의미한 차이를 보였고, 정보처리 문항에서도 좋은 성취수준을 보였다. 다시 말하면 모델링 MMa, MeA 교육이 가능하게 현행 학교 문제 해결 또는 개념 학습에 포함이 되고 더욱 발전 되는 시스템을 가질 수 있다. 둘째는 실험집단의 학생들이 생성한 모델링 처음 3단계 상황분석, 수학질문 구성, 모델설정에서 독특한 발견전략을 사용하였고 후반 2단계에서도 전통적 IPS 문제해결과 좋은 연결성을 보였다. 또, 실험집단 MMa, MeA 학생들이 개념적 시스템의 구성과정을 잘 이해했으며 Lesh & Sriraman(2005a, 2005b)의 개념적 시스템의 구성을 뒷받침 해 주었다. 셋째는 과제설정 MMa, MeA 간에 모델링의 사고행동인 수학적 상황 센스를 만들기(S), 창조하기(C), 확장하기(E), 재정의하기(RF)가 교실에서 활발하게 일어났다는 점이다. 따라서 Pollak등이 제언한 모델링 활동은 현행 IPS 활동과 의미 있게 교류 될 수 있다.

• 한국전자거래학회지
• /
• 제23권2호
• /
• pp.83-96
• /
• 2018

문서를 대표하는 키워드를 추출하는 것은 문서의 정보를 빠르게 전달할 수 있을 뿐만 아니라 문서의 검색, 분류, 추천시스템 등의 자동화서비스에 유용하게 사용 될 수 있어 매우 중요하다. 그러나 웹사이트 문서에서 출현하는 단어의 빈도수, 단어의 동시출현관계를 통한 그래프 알고리즘 등의 기반으로 키워드를 추출할 경우 웹페이지 구조상 잠재적으로 주제와 관련이 없는 다양한 단어를 포함하고 있는 문제점과 한국어 형태소 분석의 정확성이 떨어지는 형태소 분석기 성능의 한계점 때문에 의미적인 키워드를 추출하는데 어려움이 존재한다. 따라서 본 논문에서는 의미적 단어 위주로 구축된 후보키워드들의 집합과 의미적 유사도 기반의 후보 키워드를 선택하는 방법으로써 의미적 키워드를 추출하지 못하는 문제점과 형태소 분석의 정확성이 떨어지는 문제점을 해결하고 일관성 없는 키워드를 제거하는 필터링 과정을 통해 최종 의미적 키워드를 추출하는 기법을 제안한다. 실 중소기업 웹페이지를 통한 실험 결과, 본 연구에서 제안한 기법의 성능이 통계적 유사도 기반의 키워드 선택기법보다 34.52% 향상된 것을 확인하였다. 따라서 단어 간의 의미적 유사성을 고려하고 일관성 없는 키워드를 제거함으로써 문서에서 키워드를 추출하는 성능을 향상시켰음을 확인하였다.