• 한국조리학회지
• /
• 제23권2호
• /
• pp.74-85
• /
• 2017

This study conducted to analyze the causal relationships among image factors (brand, store, enterprise) of family restaurants, customer satisfaction, customer trust, and revisit intention as perceived by 271 customers, who have visited a family restaurant located in Ulsan and Busan regions. Present study performed frequency analysis, factor analysis, customer trust analysis, correlation analysis, and multiple (simple) regression analysis using SPSS 18.0 statistical program. The analysis results indicated that the image of family restaurants had significant positive (+) influences on customer satisfaction, customer trust, and revisit intention, among which the biggest influential factor was found to be the store factor. Significant influence was shown for brand image followed by corporate image. In addition, customer satisfaction and customer trust had significant positive (+) influences on revisit intention. As a result of this study, store image among family restaurant images appeared as the most important element; hereupon, this study considers that it is necessary for a family restaurant to build a differentiated image to increase revisit intention by satisfying customer needs and by encouraging customers to have trust in the restaurant.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2005년도 추계 학술발표회 제17권2호
• /
• pp.57-60
• /
• 2005

The objective of this paper is to investigate and analyze the behaviour of prestressed I section structural members constructed with ultra high perfomance steel fiber reinforced cementitious concrete (SFR-UHPC). This material is known as reactive powder concrete (RPC) mixed with domestic materials and its compressive strength is over 150MP. The parameters of test specimens were span to depth ratio, prestressing force, prestressing wire placement and web width. Most influential parameter to determine the failure mode between shear and flexural action was proved to be shear span ratio. The characteristics of ultra high-strength concrete is basically brittle, but due to the steel fiber reinforcement behaviour of this structure member became ductile after the peak load. As a result of the test, the stress block of compressive zone should be redefined. The proposed analytical calculation of internal force capacity based by plastic analysis gave a good prediction for the shear and flexural strength of specimens. The numerical verification of the finite element model which constitutive law developed for Mode I fracture of fiber reinforced concrete correctly captured the overall behaviour of the specimens tested.

• 가족자원경영과 정책
• /
• 제17권4호
• /
• pp.1-17
• /
• 2013

The purpose of this study was to explore the effects of socio-demographic variables on time management and to investigate the effects of time management on self-efficacy and academic achievement in college students. The data were collected from 382 college students through questionnaire surveys and analyzed using frequency, percentile, and regression analysis with the SPSS program. College students' time management behavior was influenced by the social status of their families and by their participation in time management education. There were differences in variables affecting time management according to its sub-areas (planning, regular habits, and goal-oriented behavior). Planning was influenced by the students' majors and by their participation in time management education. Regular habits were influenced by the students' genders and their families' social status. No variables affected goal-oriented behavior. Time management (especially planning and goal-oriented behavior) and gender had strong effects on self-efficacy, and male students showed more self-efficacious behavior than their female counterparts. Time management (especially planning and regular habits) and gender had strong effects on academic achievement, and female students received higher academic grades than their male counterparts. Based on these results, time management was confirmed as an influential element in self-efficacy and academic achievement. Planning and goal-oriented behavior particularly influenced self-efficacy, and planning and regular habits particularly influenced academic achievement.

• 대한조선학회논문집
• /
• 제55권1호
• /
• pp.1-8
• /
• 2018

A cavitator plays an important role to generate the supercavity. Most previous numerical and experimental studies have been focused on the presence of cavitators alone. However, the body behind the cavitator causes a change in the wake flow and hence it affects generation and growth of the supercavity. In this paper, we present a boundary elementary method based on a potential flow analysis, and calculate characteristics of the supercavity formation depending on the change of the body shape of two-dimensional submerged objects. Various parameters such as cone angle of the cavitator, length of the forehead and diameter of the body are considered. The results show that the longer the forepart length, the longer the cavity is created under the same conditions, and also the change in the diameter of the body is the most influential factor on the growth of the supercavity. As a result, we suggest that it is necessary to carefully consider the influence of the body shape during the initial design stage of the supercavitating underwater vehicle.

• 한국지반신소재학회논문집
• /
• 제16권1호
• /
• pp.63-72
• /
• 2017

본 연구는 Shield TBM공법을 이용한 터널 굴착시 지표침하에 영향을 주는 요소들에 대한 영향정도를 3차원 수치해석을 통해 검토하였다. 막장압, Skinplate 주면압, 굴진장, 지반모델, 요소망 크기, 통과지반에 대한 다양한 조건을 변화시켜가며 수치해석을 수행하였다. 또한 실제 시공된 Shield TBM을 변위제어방법과 응력제어방법으로 모델링하여 현장 계측값과 비교 분석하였다. Skinplate 주면압과 지반모델이 가장 큰 영향요소이며, 통과지층에 따라 적절한 Skinplate 주면압을 입력시 현장 계측값과 유사한 결과를 얻을 수 있었다.

• 한국연소학회:학술대회논문집
• /
• 대한연소학회 2003년도 제27회 KOSCO SYMPOSIUM 논문집
• /
• pp.243-250
• /
• 2003

The present study discuss about numerical methods to analyze design parameters of pyrolysis-melting incineration system. Various numerical methods of different viewpoint are introduced to simulate the performance of the system. Process analysis of the overall system is the beginning procedure of basic design process. Heat and material flow of each element are connected and are influential to each other, hence, an appropriate process modeling should be executed to prevent from unacceptable process design concepts that may results in system failure. Models to simulate performance of each elementary facility generate valuable informations on design and operation parameters, and, derive the basic design concept to be optimized. A pyrolysis model derived from waste bed combustion model is introduced to simulate the mass conversion and heat transfer in the pyrolysis process. CFD(Computational fluid dynamics) is an effective method to optimize the thermal reacting flow in various reactors such as combustor and heat exchanger. Secondary air jets arrangement and the shape of the combustor could be optimized by CFD technology.

• Agricultural and Biosystems Engineering
• /
• 제6권1호
• /
• pp.22-26
• /
• 2005

A wind-heat generation system was developed and the system consisted of an electric motor, a heat generation drum, a heat exchanger, two circulation pumps and a water storage tank. The heat generation drum is an essential element determining performance of the system. Frictional heat was generated by rotation of a rotor in the drum filled with a working fluid, and the heat stored in the fluid was used to increase water temperature through the heat exchanger. Effects of some factors such as rotor shape, kind and amount of working fluid, rotor rpm and water flow rate in the heat exchanger, affecting the system performance were investigated. Amounts of heat generated were varied, ranging from 126,000 to 32,760 kJ/hr, depending on combination of the factors. Statistical analysis using GLM procedure revealed that the most influential factor to decide the system performance was amount of the fluid in the drum. Experiments showed that the faster the speed of the rotor, the greater heat was obtained. The greatest efficiency of the heat generation system, electric power consumption rate vs gained heat amount of water, was about 70%. Though the heat amount was not enough for plant bed heating of a 0.1-ha greenhouse, the system would be promising if some supplementary heat source such as air- water heat pump is added.

• 패션비즈니스
• /
• 제9권4호
• /
• pp.94-112
• /
• 2005

This study focuss on the futurism expressed in Paco Rabanne's works. Paco Rabanne, who has created experimental and prophetic avant-garde fashion by cutting edge techniques and revolutionary new materials, is known as one of the most influential fashion designer of modern times. First, Light, one of the most important element in Paco Rabanne's fashion design, shows some influence of medieval symbols of love and salvation. Second, the artistic trends which influenced on Paco Rabanne's fashion include surrealism, op art and kinetic art. His use of new materials and avant-garde style represents the influence of surrealism. His experimental use of waving plastics and glittering metal during his early period is especially related with op art and kinetic art in the early 1960's which emphasize the artistic effect of light and movement. Third, the characters of Paco Rabanne's works are the harmony of technology and the beauty oh machine by the geometrical figures like triangles, rectangles, and circles and represent and movement,and the innovational creative methods, voluptuous beauty.

• 한국의류학회지
• /
• 제30권1호
• /
• pp.31-37
• /
• 2006

The purpose of this study was to value the present condition of natlwal dyeing, to forecast needs in natural dyeing world and to off the preliminary data on future direction of research and enhancement plan. The three-round Delphi tests were performed with 36 professional in the academic, the industrial, and the art world. The result of the study is as follows: Factor analysis showed the troubles were classified into 4 categories; 'dyeing', 'basis', 'industry' and 'consumer and environment'. Supplementary measures and future direction research 3categories; 'development', 'education' and 'mass production' And commercialization. popularization 2 categories; 'commercialization' and 'popularization'. 'Dyeing' is correlated with 'mass production', 'basis' with 'education' and 'education' with 'commercialization' and 'popularization'. The engaged period in natural dyeing world is longer, professionals were more concerned about 'consumer and environment' The most influential element of the present question in the view is 'education'.

• 대한원격탐사학회지
• /
• 제34권1호
• /
• pp.127-139
• /
• 2018

The GOCI atmospheric correction overland surfaces is essential for the time-series analysis of terrestrial environments with the very high temporal resolution. We develop an operational GOCI atmospheric correction method over land surfaces, which is rather different from the one developed for ocean surface. The GOCI atmospheric correction method basically reduces gases absorption and Rayleigh and aerosol scatterings and to derive surface reflectance from at-sensor radiance. We use the 6S radiative transfer model that requires several input parameters to calculate surface reflectance. In the sensitivity analysis, aerosol optical thickness was the most influential element among other input parameters including atmospheric model, terrain elevation, and aerosol type. To account for the highly variable nature of aerosol within the GOCI target area in northeast Asia, we generate the spatio-temporal aerosol maps using AERONET data for the aerosol correction. For a fast processing, the GOCI atmospheric correction method uses the pre-calculated look up table that directly converts at-sensor radiance to surface reflectance. The atmospheric correction method was validated by comparing with in-situ spectral measurements and MODIS reflectance products. The GOCI surface reflectance showed very similar magnitude and temporal patterns with the in-situ measurements and the MODIS reflectance. The GOCI surface reflectance was slightly higher than the in-situ measurement and MODIS reflectance by 0.01 to 0.06, which might be due to the different viewing angles. Anisotropic effect in the GOCI hourly reflectance needs to be further normalized during the following cloud-free compositing.