• 영재교육연구
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• 제15권1호
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• pp.67-84
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• 2005

과학영재 판별의 대안적 도구로서의 가능성을 찾아보기 위하여 영재 집단과 일반 집단의 뇌파검사를 실시하였다. 뇌파의 주성분 공간분석법인 PCA분석 자료의 집단별 차이점을 이용하여 과학영재 판별지수(Gifted Index: G-Index)를 개발하고 과학영재 판별의 가능성을 탐색하여 보았더니 76% 수준에서의 판별 효과를 얻을 수 있었다. 또 과학영재 판별이 가능한 기타 판별도구 성취도들 간의 상관관계를 바탕으로 하여 회귀분석을 시도한 결과는로 나타났다. 이를 근거로 한 영재 판별 확률식을 제안하면 $$P=\frac 1{1+e^{-[-0.018(TTCT)+0.057(IQ)+1.916(FASP)+0.682(V.T)+0.088(Exp.)+0.034(G-Index)-57.510]}}$$와 같고 이 회귀분석식을 적용한 결과 영재 집단 내에서의 판별 가능성이 95% 수준에서 매우 우수하였다. 따라서 과학영재 판별의 대안적 도구로서의 뇌파검사와 G-Index의 유용성을 확인할 수 있었다.

• 서비스연구
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• 제11권2호
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• pp.67-77
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• 2021

본 연구는 기존의 장례의식 중심의 상조기업 비즈니스가 조문객과 상주 중심의 서비스로 변모하기 위해 반드시 필요한 고객경험 중심 혁신전략 방법론에 관한 연구이다. 이를 위해서 서비스사이언스 관점에서 장례산업의 환경변화와 그 안에서의 고객경험 의의 및 가치, 고객경험관리 차원의 긍정적 고객경험, 부정적 고객경험 등의 문헌 연구를 수행하였고, 상조회사의 고객경험 혁신을 위한 구체적인 모델을 제시하고 입증하기 위한 연구를 수행하였다. 장례산업의 고객경험 혁신 전략의 의미는 현재 상태에서 목표 상태에 도달할 수 있는 여러 대안을 고객을 중심으로 탐색하고 그 중 최적의 전환 계획을 선택하는 것이다. 적용효과는 고객의 선호적인 감정을 유발시켜 차별화를 만들어내는 핵심이 되며, 고객경험 데이터가 상조회사의 경제적 관점의 자원 투입에 중요한 의사결정에 높은 도움이 된다는 것이다. 이와 같은 상조회사 혁신모델을 제시하였다. 고객중심의 상조서비스를 분석하여 그 가치를 연구하였다. 마지막으로 고객경험에 대한 측정 절차, 진단/평가, 혁신전략, 상조기업의 성과를 변수로 활용하여 단순회귀분석 기반으로 인과관계를 분석하였고, 결과적으로 관계가 유의미하다는 것이 설명되었다.

• 산업경영시스템학회지
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• 제41권2호
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• pp.167-173
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• 2018

Each municipality is promoting signboard improvement projects, but the effectiveness is not great. The main reason for this is that when the signboard is manufactured the location of the shop is only dependent on the visual aspiration effect and it is not harmonized with the building by applying uniform design. The signboard are installed almost everywhere in the city, such as residential, natural and commercial environments. And the signboard provides various services such as traffic information and life safety to customers. Also, by applying design and functional elements, we can enhance the competitiveness of companies and improve the urban environment by enhancing the mutual connection effect of customers and space. The purpose of this study is to investigate the effect of design elements and functional elements of the signboard on customer preference. In other words, we conducted surveys and analyzes of 152 specialists and non-experts (customers, self-employed). As a result of the study, the following conclusions were drawn. First, the functions and design elements of signboards are important factors that have a positive effect on customer preference. Second, the function of the signboard has a positive(+) influence on the customer preference, and the information providing function and the corporate image side function directly affect the customer preference. Third, color elements have a positive(+) meaningful effect on customer preference. Especially, similar color sign affects customer preference positively. Fourth, the signboard design component has a positive(+) significant effect on customer preference. In particular, typefaces have a positive effect on customer preference.

• 한국콘텐츠학회논문지
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• 제18권10호
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• pp.575-583
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• 2018

본 연구는 사회활동과 성공적 노화의 관계에서 노화불안의 매개효과와 노화불안과 성공적 노화의 관계에서 사회적지지의 조절효과를 분석하여 사회활동을 통한 성공적 노화 방안을 모색하기 위함이다. 조사대상은 경기도 거주 만60세 이상 고령자이며 총513명이 설문에 참여했고 이 중 450부를 분석에 사용했다. 분석은 회귀분석을 활용한 매개효과 및 조절효과 검증을 사용하였다. 분석결과, 사회활동은 노화불안을 낮추고 성공적 노화 향상에 도움이 되며, 노화불안은 사회활동과 성공적 노화의 관계에서 매개효과를 보이고, 노화불안과 성공적 노화의 관계에서 사회적지지의 조절효과를 확인했다. 이를 바탕으로, 사회활동 제공기관들은 사회활동 프로그램을 다양화하되 노화불안 완화 효과를 거둘 수 있도록 사업 체계를 개편하고, 참여자끼리 상호지지 체계를 구성하여 사회활동을 통한 성공적 노화가 더욱 효과를 거둘 수 있도록 관리될 필요가 있음을 제안하였다.

• 환경영향평가
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• 제8권3호
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• pp.49-59
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• 1999

In this study, we individualize the clauses to sort out the troubled ones, draw up a interrelation model in order to visually organize the relations, and finally, suggest the desirable application idea. The interrelation model suggested in this study has been made based on the matrix method. On this matrix, we arranged the environmental factors on horizontal and vertical axis, and when we describe the relation of each factors, we set the horizontal axis as the base and divided the content into three grades : Fine, Medium, and Poor. In addition to that, we expressed those three grades into numerical value like 3 points for Level Fine, 2 points for Level Medium, and 1 point for Level Poor and then, we converted this numerical values into index numbers. We could classify the index numbers such as AS, PS, Q-index, P-index. AS is an index numerically shows the degree of giving environmental effect, PS is an index numerically shows the degree of receiving environmental effect, Q-index is an index shows the aggravate degree, and P-index shows the relation degree. The Q/P-index with large numbers has considerable effect on the environmental system, while the small numbered Q/P-index barely effect on the environmental system. Moreover, we classified the environmental factors into 5 levels(I~V) according to the relations between the Q-index and P-index. Level I is less affected by the environment and has more giving effect, while Level V is more sensitively affected by the environment and has more receiving effect, which we considered important. Therefore, we could come up with the result that if we consider the each level of factors when we evaluate the EIA, the result would be far more accurate and reliable since it contains mutual relation aspect of EIA. The suggested interrelation model in this thesis is presentable as one of those scoping system. We highly believe the need of scoping system in EIA and suggest the interrelation model as the alternative idea for scoping system.

• 한국콘텐츠학회논문지
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• 제8권11호
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• pp.306-322
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• 2008

본 연구는 공기업 CEO의 리더십특성이 조직구성원의 리더신뢰수준과 조직유효성에 미치는 영향을 시장형과 준시장형 공기업 14개회사를 중심으로 1,124명의 표본을 대상으로 조사하였는데 조사결과는 다음과 같다. (1) 리더의 개인적 배려가 신뢰수준에 영향을 미치고, (2) 변혁적 리더십과 거래적 리더십이 조직 유효성에 영향을 미치는 것으로 분석되어 가설이 채택되었다. 그리고 (3) 리더의 신뢰수준으로서의 계산적, 지식적, 동일화 요인이 조직 유효성의 직무만족과 조직몰입에 긍정적인 영향을 높이는 기제로 나타났으나, 신뢰수준에서 계산적 변수의 조직몰입은 기각되었다. 전체적으로 공기업 CEO 리더십 특성으로서의 변혁적, 거래적 리더십이 계산적, 지식적, 동일화 정도의 상호신뢰수준에 따른 조직 유효성에 미치는 영향검증 결과 동일화 기반에서의 조직몰입은 기각되고 그 외 요인은 긍정적인 기제로 채택되어 공기업 CEO의 리더십 특성에 적합한 기제임을 입증시켜 주었다.

• 전기의세계
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• 제26권5호
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• pp.74-82
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• 1977

This study is to present a method for reductin of noise and vibration of home electric motors coupled to the mechanical load causing relatively big amplitude of vibration. The noise and vibration factors have been analysed in the divisions such as the pattern related to the armature reaction, the pattern related to the circulating current by induction and the other patterns those are affected by a dditive magnetic field and have an effect on mechanical constants. From the systematic mutual relations between the patterns and daping effects, it is possible to derive the fundamental measure for reduction of noise and vibration. Vibration measurements and analysis were carried out in accordance with the planned experimentation and thre object model was chosen randomly from the production line in a factory where home electric machines were mass-produced. Based on the above-mentioned fundamental measure, suppression effects on noise and vibration have been analysed according to the number of slots, the amount of rotor skew and the way the stator winding connection was series or parallel.

• 오토저널
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• 제4권3호
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• pp.40-47
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• 1982

Heat transfer on packed bed is considered to be important for the effective designs of chemical reaction equipment, air conditioning system, and storage type heat exchanger, etc. Currently studies are being carried out quite actively in this field in order to increase the heat transfer efficiency. The effect of heat transfer is closely relater to materials, shapes, porosities and packing states of packed bed as well as mutual dimensional relations between particles and the container. Investigation shows that heat transfer results appear to be influenced by such parameters as fluid velocity through packed bed, mass flow, and thermal properties. It is noted that viscosity is also considered to be an important factor in this problem. In this study, effective thermal conductivities on packed bed, effects of thermal conductivity (Ke) and friction factor (Fk) according to change of porosity(.epsilon.) and Reynolds number(Reh(, and pressure loss of the fluid, are experimentally investigated. Results show that the effective thermal conductivity increases and the friction factor decreased, as against the increase of Reynolds number. But as the increase of porosity increase them both.

• 한국포장학회지
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• 제6권1호
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• pp.19-23
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• 2000

The increasing use of plastics in food packaging materials has led to the issue of food-packaging mutual interactions from residues in the plastics. Plastic films are commonly printed by using solvent-based ink to decorate the packaged food for consumer attention. However, the residual solvents can not be completely removed and they can migrate into the contained food which lead to undesirable off-flavors. Partitioning (Kp) of printing ink solvents was studied in two types of plastic films with different chemical structure and polarity. At $25^{\circ}C$, Kp of toluene is higher than that of isopropanol in PP, but isopropanol showed higher Kp value than toluene in EVOH. This showed that polarity had a significant effect on the partitioning of printing ink solvents into the plastic films. Printing solvents had a higher affinity to the polymer with similar polarity than it did to the different one.

• 한국환경과학회지
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• 제5권3호
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• pp.387-398
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• 1996

Granular sludge formation and it's activity change are the most important factors in achieving successful start-up and operation of UASB reactor. Nevertheless, the detailed mechanism is still unknown. On the basic of the experiments in laboratory-scale UASB reactor, the effect of hydrogen partial pressure on sludge granulation was evaluated. Size distribution method and specific metabolic activity of the sludge with the operation time were used as a means for estimating the degree of the sludge granulation. At the constant hydrogen loading, the granulation increased as starvation periods in hydrogen supply increased, resulting in high organic removal efficiency. It was evidient that hydrogen play very important role in granulation and sludge granulation was achieved through mutual symbiosis between hydrogen utilizing bacteria and hydrogen producing bacteria under the hydrogen dificient conditions. Key words : granular sludge, UASB reactor, hydrogen partial pressure.