• The Journal of the Korea Contents Association
• /
• v.16 no.6
• /
• pp.726-738
• /
• 2016

This paper aims to examine structural relationship between the influence factors of customer loyalty, hypothesizing that m-CRM characteristics, market orientations, relationship quality and relationship length plays a crucial role in achieving customer loyalty in insurance companies. Total of 255 valid sample data were used to test study hypotheses. By using Structure Equation Modeling(SEM) method, the results show that m-CRM characteristics and customer orientation significantly influence to relationship quality except competitor orientation and all relationship quality are very significantly influence to customer loyalty being consisted of customer retention and word of mouth effect. In addition, the modulation effect of relationship length is confirmed about relationship between relationship quality and customer loyalty. A real situation we conducted our research may enable academics and practitioners to understand the antecedents and outcomes of m-CRM implementation in terms of market orientation.

• Journal of IKEEE
• /
• v.20 no.3
• /
• pp.330-332
• /
• 2016

In this study, we investigate the influence of channel length of bendable a-Si:H thin film transistors (TFTs) on their electrical characteristics as a function of bending strain. Under a tensile strain of 1.69%, $8{\mu}m$-channel-length TFT has the threshold voltage shift up to 5.25 V, while $100{\mu}m$-channel-length TFT operates stably.

• Steel and Composite Structures
• /
• v.17 no.5
• /
• pp.561-572
• /
• 2014

In this paper, we present the scattering characteristics of infinite and finite array using method of moment (MoM) with Floquet harmonics and asymptotic waveform evaluation (AWE) technique. First, infinite cylindrical dipole array is analyzed using the MoM with entire domain basis function and cylindrical Floquet harmonics. To provide the validity of results, we fabricated the cylindrical dipole array and measured the transmission characteristics. The results show good agreements. Second, we analyzed the scattering characteristics of finite array. A large simulation time is needed to obtain the scattering characteristics of finite array over wide frequency range because Floquet harmonics can't be applied. So, we used the MoM with AWE technique using Taylor series and Pade approximation to overcome the shortcomings of conventional MoM. We calculated the radar cross section (RCS) as scattering characteristics using the proposed method in this paper and the conventional MoM for finite planar slot array, finite spherical slot array, and finite cylindrical dipole array, respectively. The compared results agree well and show that the proposed method in this paper is good for electromagnetic analysis of finite FSS.

• Proceeding of Spring/Autumn Annual Conference of KHA
• /
• 2004.11a
• /
• pp.135-140
• /
• 2004

The purpose of this research is to investigate the characteristics of Jeju recreational pension. This research is carried out by on site inspection and the survey on management of the recreation facilities. A target of research is sixteen facilities of recreation pension in Jeju-do. Recreational pension was created by Jeju Free International City of special law in 2000. Jeju Recreational pension has characteristics as follows : The land area of that is $1300m^{2}{\sim}6300m^{2}$, the number of guest rooms are 10, and the area of guest rooms are $29m^{2}{\sim}100m^{2}$. Especially most of them are in Namjeju-gun. Also, they mostly have R.C. structure, and materials of exterior are artificiality stone. The color of an outer walls are mostly white and light-beige and that of the roofs are mainly dark-brown. On plot plan, it has 4type of prototype; type of outbuilding, arranging in a row, corridor, hall and composition of three types with public area. The outside facilities are equipped by handy golf courses and outdoor barbecue cooking sites. Unfortunately, most of pensions don't reflect the characteristics of architecture factors in Jeju.

• Transactions of the Korean Society of Machine Tool Engineers
• /
• v.15 no.6
• /
• pp.114-120
• /
• 2006

Front-end side members of vehicles are structures with the greatest energy absorbing capability in a front-end collision of vehicles. This paper was undertaken to analyze the energy absorption characteristics of spot welded hat and double hat-shaped section members under the axial collapse. The experiments were performed with respect to the various collapse velocities. It was expected that para-closed sections would show collapse characteristics which be quite different from those of perfectly closed sections. The collapse velocities were selected as follows: the velocities in the hat-shaped section members were 0.00017m/sec, 0.017m/sec, 4.7m/sec, 6.5m/sec, 6.8m/sec, 7.2m/sec, and 7.3m/sec those in the double hat-shaped section members were 0.00017m/sec, 0.017m/sec, 6.5m/sec, 6.8m/sec, 7.2m/sec 7.3m/sec, and 7.9m/sec. In the program system presented in this study, an explicit finite element code, LS-DYNA3D, is adopted for simulating complicated collapse behavior of the hat and double hat-shaped section members under the same condition of the collapse test. The validity of simulation was confirmed by the comparison between the simulation result and the collapse experiment.

• Journal of Korean Society of Water and Wastewater
• /
• v.22 no.6
• /
• pp.627-632
• /
• 2008

It is necessary to investigate methods for improvement by diagnosing sludge settling characteristics on inflow of slurry to thickener. The results of the settling tests are correlated to determine zone settling velocities at the various sludge solids concentrations. Conditioning of WTP residuals is generally done by either chemical or physical treatment. The settling test was conducted with 1m columns dosing polymer to WTP residuals at various solids concentration. The estimated results for dosing to WTP residuals for a sludge of 2,100 ~ 16,012 mg/L solids concentration were the zone settling velocities of 48.38 ~ 6.8 m/day, supernatant solid concentration of 3.2 ~ 19 mg/L and solid flux of $101.6{\sim}317.61kg/m^3{\cdot}day$. The values for non-polymer treatment were the zone settling velocities of 28.37 ~ 0.12 m/day, supernatent solid concentration of 8.5 ~ 108 mg/L and solid flux of $59.58{\sim}1.92kg/m^2{\cdot}day$. The limiting solid flux value by Yoshioka methods was $4.0kg\;TS/m^3{\cdot}day$ for Non-polymer and $228.0kg\;TS/m^3{\cdot}day$ for dosing polymer. These results are to indicate a possibility of improvement on the thickening characteristics and the quality of supernatant as increasing the settling velocities by dosing polymer to WTP residuals.

• Toxicological Research
• /
• v.12 no.2
• /
• pp.271-275
• /
• 1996

Carcinogenic potential of HPV-16 DNA and NNK in a human keratinocyte cell line was assessed to study effects of viral-chemical interaction. Human cells were transfected with HPV-16 DNA and 6 clonal cell lines were subsequently obtained. Clonal line-3 and 6 at passage 7 showed characteristics of tumor cells such as increases of saturation density, soft-agar colony formation, cell aggregation and foci appearance. Among cells treated with 1$\mu M$, 10$\mu M$, 100$\mu M$ or 1 mM of NNK for 4 weeks, 100$\mu M$ treatment showed most tumorigenic characteristics at passage 7. These results indicate that either HPV-16 or NNK alone is tumorigenic in this in human in vitro model. When cells transfected with HPV-16 were subsequently exposed by 100 uM NNK for 4 weeks, all the clonal cells except clone-1 showed higher levels of tumor cell characteristics than HPV-16 DNA or NNK exposure alone. Clonal line-6, the most tumorigenic cells, showed higher transcriptional level of fibronectin and lower level of TGF-$\beta_1$, as compared to control cells, suggesting that alteration of growth factor or extracellular matrix may play a role in carcinogenesis process induced by HPV-16 and NNK. Taken together, the present study indicates that viral-chemical interactions between HPV-16 DNA and NNK enhance carcinogenic potentials of human cells and implies that smoking among people infected with human papillomavirus may pose an additional risk of causing cancer.

• Journal of the Korean housing association
• /
• v.17 no.3
• /
• pp.19-30
• /
• 2006

The purpose of this study was to compare the characteristics of floor plan of $85m^2$-sized housing units with 2-bay and 3-bay and the residents' satisfaction with them. The subjects for analyzing floor plan were six floor plans of $85m^2$-sized housing units with 2-bay and nine floor plans of housing units with 3-bay in the new town, Hwamyeong-dong, in Busan. The floor plans were analyzed based on seven characteristics of floor plans such as the composition type of entrance core hall, the entrance arrangement, width and depth of the housing unit, size of each room, LDK arrangement, arrangement of family bathroom and private bathroom for husband and wife, and balcony arrangement. The subjects for grasping satisfaction with each housing unit were 400 residents of $85m^2$-sized housing units. A half of them lived in housing units with 2-bay and another half of them with 3-bay in the same area. They answered about the degree of satisfaction with the characteristics of each room and the preferred floor plan type if they move to the same size housing units through a questionnaire. The results were as follows; First, the floor plan with 3-bay had more diverse elements than one with 2-bay. Second, the residents who lived in 3-bay housing unit were younger, higher education, and higher income than the ones in 2-bay. Third, the residents who lived in $85m^2$-sized housing unit were more satisfied with and preferred to 3-bay housing units than 2-bay one.

• Proceedings of the KSME Conference
• /
• 2003.11a
• /
• pp.1062-1067
• /
• 2003

In this study, corrosion fatigue characteristics of CF8M and CF8A steel were investigated on the simulated PWR condition(Temp.:$316^{\circ}C$, Pres.: 15:MPa). To make the simulated PWR condition. the special test machine consisted of INSTRON, Autoclave, LOOP and Measurement system was developed. As ${\Delta}K$ is ranged from 11 to $20MPa{\sqrt{m}}$, Crack growth rate of PWR condition is faster than air condition. Above $20MPa{\sqrt{m}}$, the crack growth rate of PWR and air condition is similar. Corrosion fatigue characteristics regardless of the ferrite contents($10{\sim}25wt.%$) is not different. After the test, the fracture surface of specimens was examined. It was difficult to verify the fracture modes such as striation, intergranular crack and cleavage and so on. As the ferrite content of CF8M is increased, the more particles covered fracture surface were peeled.

• Journal of information and communication convergence engineering
• /
• v.20 no.2
• /
• pp.137-142
• /
• 2022

Monolithic three-dimensional (M3D) logics such as M3D-NAND, M3D-NOR, M3D-buffer, M3D 2×1 multiplexer, and M3D D flip-flop, consisting of modularized M3D inverters (M3D-INVs), have been proposed. In the previous M3D logic, each M3D logic had to be designed separately for a standard cell library. The proposed M3D logic is designed by placing modularized M3D-INVs and connecting interconnects such as metal lines or monolithic inter-tier-vias between M3D-INVs. The electrical characteristics of the previous and proposed M3D logics were simulated using the technology computer-aided design and Simulation Program with Integrated Circuit Emphasis with the extracted parameters of the previously developed LETI-UTSOI MOSFET model for n- and p-type MOSFETs and the extracted external capacitances. The area, propagation delay, falling/rising times, and dynamic power consumption of the proposed M3D logic are lower than those of previous versions. Despite the larger space and lower performance of the proposed M3D logic in comparison to the previous versions, it can be easily designed with a single modularized M3D-INV and without having to design all layouts of the logic gates separately.