• 산업융합연구
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• 제20권1호
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• pp.1-12
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• 2022

본 연구에서는 SCM(Supply Chain Management)과 e-SCM이 변화 수용 능력, 정보 공유 능력, 파트너십 관리 능력, 그리고 비즈니스 성과에 미치는 영향을 연구하였다. 수도권 및 지방에서 SCM과 e-SCM을 도입한 기업의 직원을 대상으로 조사 및 분석하였다. 연구모형을 통해 SCM의 특징적인 요소인 변화수용능력, 정보공유능력, 파트너십 관리역량, 사업성과 및 성과변수 간의 관계 정도를 분석하였다. 신뢰도, 타당도, 유의성 등을 검증하였다. 연구가설에 의해 지지된 연구 결과를 다음과 같이 2가지로 요약할 수 있다. 첫째로, 기업의 역량을 변화수용역량, 정보공유역량, 파트너십관리역량이 주요한 변수로 분석하였다. 둘째, 특정 기업의 역량이 아닌 SCM에서 필요한 역량을 4가지로 분류하여 관계 정도를 구체적으로 분석하였다. 본 연구는 SCM 관련 기업에 적절한 정보를 제공할 수 있을 것으로 기대된다.

• 한국운동역학회지
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• 제21권1호
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• pp.1-7
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• 2011

The purpose of this study was to investigate changes in kinetic and kinematic variables associated with an increase in upper body weight. Eighteen healthy male university students($175.96{\pm}4.19\;cm$, $70.79{\pm}8.26\;kg$) participated. Eight motion analysis cameras(Qualysis Oqus 500) and 2 force AMTI platforms(Advanced Mechanical Technologies Inc. OR6-7, US) were used to record motion and forces during the drop landing at a frequency of 120 Hz and 1200 Hz, respectively. QTM software(Qualisys Track Manager) was used to record the data, and the variables were analyzed with Visual 3D and Matlab 2009. For the drop landing, a box of $4{\times}2{\times}0.46\;m$ was constructed from wood. Knee and ankle maximum flexion angle, knee flexion angle, knee and ankle angle at landing, time for maximum ankle flexion after landing, and time for maximum knee flexion after landing were calculated. There was a significant change in the time for maximum and minimum ground force reaction and the time for maximum dorsal flexion after landing(p<.05) with increasing weight. There was no significant change for the hip, knee, and ankle ROM, whereas there was an increase in the angle ROM as the weight increased, in the order of ankle, knee, and hip ROM. This result shows that the ankle joint ROM increased with increasing weight for shock attenuation during the drop landing. There was a trend for greater ankle ROM than knee ROM, but there was no clear change in the ROM of the hip joint with increasing weight. In conclusion, this study shows the importance of ankle joint flexibility and strength for safe drop landing.

• 한국초등과학교육학회지:초등과학교육
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• 제24권3호
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• pp.292-300
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• 2005

과학 태도에 대한 관심과 중요성이 증대되고 있다. 과학 태도는 학생들의 성취도, 교육 프로그램에 대한 일관성, 수업의 질뿐만 아니라 과학 교육의 관점과 과학 직업 선택에도 영향을 준다. 이 연구에서는 과학 태도의 변화에 영향을 주는 변인에 대해 정성적인 분석을 하였다. 이를 위하여 초등학교 4, 5, 6학년 학생 총 33명을 대상으로 면담을 실시하였다 이 결과, 긍정적인 과학 태도를 가지기 위해서는 많은 과학 활동이나 실험이 이루어져야 한다. 과학 태도 변화에 교사의 역할이 결정적이며, 과학 태도에 영향을 변인으로는 과학 경험, 교사, 학급 분위기, 동료 등으로 나타났다. 이러한 연구 결과에 기초하여 이들 변인들이 과학 태도에 어떻게 영향을 주는지에 대한 추가적인 연구가 이루어지길 기대한다.

• 한국환경복원기술학회지
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• 제18권3호
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• pp.51-64
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• 2015

Climate change will make significant impact on species distribution in forest. Pinus koraiensis which is commonly called as Korean Pine is normally distributed in frigid zones. Climate change which causes severe heat could affect distribution of Korean pine. Therefore, this study predicted the distribution of Korean Pine and the suitable habitat area with consideration on uncertainty by applying climate change scenarios on an ensemble model. First of all, a site index was considered when selecting present and absent points and a stratified method was used to select the points. Secondly, environmental and climate variables were chosen by literature review and then confirmed with experts. Those variables were used as input data of BIOMOD2. Thirdly, the present distribution model was made. The result was validated with ROC. Lastly, RCP scenarios were applied on the models to create the future distribution model. As a results, each individual model shows quite big differences in the results but generally most models and ensemble models estimated that the suitable habitat area would be decreased in midterm future(40s) as well as long term future(90s).

• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2003년도 추계학술발표논문집
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• pp.230-248
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• 2003

본 연구에서는 제지공정에서의 wet-end 와 dry section 부분을 통합한 모델을 구하고 이를 바탕으로 하여 지종교체 공정의 모델예측제어 방법을 제안하였다. 폐회로 공정 인식기법을 이용하여 state-space 모델을 구한 후 지종교체 제어를 모사한 결과와 실제 제지공장의 지종교체 운전데이터를 비교 분석하였다. 입력 변수로서 이전까지는 간과되어 왔던 4가지 변수(thick stock, filler flow, speed, steam pressure), 그리고 출력변수로서 3가지 변수(basis weight, ash content, moisture content)를 고려하였으며, output trajectory는 1차 전달함수 형식으로 하여 적용하였다. 모델예측제어 모사결과를 지종교체 운전데이터와 비교하여 본 결과 지종교체 시간이 짧아지고 보다 안정적으로 정상상태에 이르는 것을 확인할 수 있었다. 아울러 모델예측제어로 인하여 지종교체 이후 입력 변수들이 큰 진동이 없이 보다 신속하게 정상상태에 도달함을 확인하였다.

• 대한물리의학회지
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• 제15권2호
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• pp.109-120
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• 2020

PURPOSE: This study was conducted to verify the effects of a functional correction of the pain of patients with chronic low back pain(CLBP), and to examine the effect of dysfunctional factors on health-related quality of life. METHODS: A preliminary survey was first conducted on 90 patients with CLBP after functional orthodontic treatment. Some revised questionnaires were also prepared. The survey was distributed for approximately eight weeks, and 215 copies were used as the final analysis data, except for questionnaires that were inadequate, error or non-response. RESULTS: Path analysis using the structural equation model of CLBP patients showed a positive correlation between all the path coefficients and the potential factors. The multidimensional relationship between pain and dysfunction after orthognathic treatment was confirmed using three subdivisions of the pain variables as independent variables and the dysfunctional variables as the dependent variables. Multiple regression analysis was performed to examine the effects of pain on the dysfunction. To identify the multidimensional relationship between dysfunction and the health-related quality of life, eight sub-factors of dysfunctional variables were set as the independent variables, and multiple regression was analyses were performed with the dependent variables of the health-related quality of life. CONCLUSION: This study examined the structural and influence relationships of the functional correction with pain, dysfunction, and health-related quality of life. The results, suggest that a functional orthodontic treatment can be used as a positive program for the health-related quality of life. In addition, this study is meaningful in that it provieds useful information for intervention such as psychosocial change of patients.

• 한국조경학회지
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• 제27권3호
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• pp.58-68
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• 1999

Purpose of this thesis is to find out the relationship among the amount of change and the visual cognition, and the visual preference which people like and can feel. Through the investigation of relationships between the amount of change, which indicates the degree of visual variation and the visual preference, the amount of change and the visual cognition, and the visual preference and the visual cognition, basic design data will be supplied, which can satisfy users' desire as much as possible in the most economic way. In order to investigate the relationship between the visually produced the amount of change and preferences, graphic simulation, in which variables other than the visual change are controlled, has been proceeded. Graphic factors of the visual change in the cyber exterior space are determined on the point of location (base plane, vertical plane, overhead plane), shape, size and color. As for the relationship between the amount of change and the preference, only the size is effective. since preferences on the location, shape and color are individual preferences, no common trend can be found. Therefore, we cannot say that which shape or color is better, Since the location, shape and color are qualitative change and the size is the quantitative change, the size can be the measurable change quantity. The relationship between the amount of change of size and the degree of preference is found to be inverse U-shape, i.e., as the amount of change of size increases the degree of preference first increases and, after a certain level, decreases. The same result has been obtained in photo simulation.

• 호남수학학술지
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• 제34권3호
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• pp.391-401
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• 2012

B. C. Berndt has found a transformation formula for a large class of functions, which comes from a transformation formula for a more general class of Eisenstein series. In this paper, using his formula which is 'twisted' by change of variables, we find a class of infinite series identities.

• Journal of Nutrition and Health
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• 제46권3호
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• pp.276-284
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• 2013

This study compared levels of health and dietary behavior practices and health beliefs according to the stage of weight loss behavior change of Korean male workers. A self-administered survey questionnaire was collected from 411 male adult workers residing in Seoul, Kyeonggi, Chungcheong region. Practices of health related behavior, including smoking, drinking, exercise, work related physical activity, and dietary behavior according to dietary guidelines were evaluated. In addition, the levels of perceived benefit, perceived barrier, perceived susceptibility, perceived seriousness, and perceived cue to action from the health belief model were measured according to the stages of weight loss behavior change. Significant differences in BMI, level of daily exercise, and practices of dietary behavior according to dietary guidelines were observed among stages of weight loss behavior change. Subjects who were in action/maintenance stage showed a more desirable level of health behavior and health belief model variables, except perceived barrier. Based on the findings of this study, it is suggested that subjects with different stages of behavior change need an appropriate specific nutrition education method and material for improvement of nutrition education efficacy.

• 가정과삶의질연구
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• 제17권1호
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• pp.121-138
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• 1999

The purpose of this study were to identify the factors related to the changes of family total income total expenditures housing maintenance costs food expenditures and clothing expenditure, The data used for these purposes was collected from housewives living in jeonbuk area by questionaire in May 1998. Sample size of this data was 341 households. Statistics performed for the analysis were frequencies percentage means and multiple regression analysis. The results of this study were as follows; First monthly income decreased by 370,000 won than last year. The variables contributing to decreasing income were job type of household head and educational attainment of housewives the amount of total family current income total household expenditure and the perception of economic status. Second monthly expenditure decreased by 24,000 won than last year. The variables related to decreasing expenditure were educational attainment of housewives and the perception of economic stats. Third the variables related to their total household change were job type of household head number of family current household expenditure and the perception of economic status. finally the variables associated with total satisfaciotn of family life were the amount of leisure time the perception of economic attainment the confirmity of family and the amount of current household expenditure.