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Quantitative analysis of optical scattering intensities from a Au nanoparticle with a diameter of 100 nm, which is effected by the localized surface plasmon resonance (LSPR), were numerically carried out by using a dark-field detection scheme on prism basal plane for two different beam incident modes of reflectance (R-mode) and transmittance (T-mode). Two-dimensional finite difference time domain (FDTD) algorithm was adopted, and its applicabilibility was verified by comparing the simulation results with the theoretical ones. Simulation results of the scattered light intensities from a Au nanoparticle revealed that the scattered intensity of the T-mode was much stronger than that of R-mode. Comparison of the calculated results with the theoretical intensity distribution on the prism showed that the scattered intensity is marimized when the evanescent field, which is generated from the interface of prism and air at TIR angle, is coupled with Au nanoparticle.
The roll forming process is commonly used for the conventional 'Fe' metal products such as a furniture drawer guide or an up-down slide guide. Recently its applications are variously expanded to the sanitary facilities or electronic devices. It is essentially required the cleanness for the high technology application and any corrosion or rust are not allowed. Therefore, in those applications the stainless steel materials are strongly demanded as the substitution of ‘Fe’ steel. However the mechanical properties of stainless steel are not suitable for forming process compared with those of ‘Fe’ steel. Up to now, the conventional F.E.M.(Finite Element Method) has been used to analyze and design the roll forming process. The purpose of this research is to obtain the proper production process and the shape of rolls to manufacture the high precision slide rails made of stainless steel material. The commercial program, SHARPE-RF, is used to analyze the entire roll forming process. The results show that the rolling process and the roll design by F.E.M. are useful from the good agreement between the shapes of products estimated by F.E.M. and those of the actual products.
This empirical study aimed to examine the impact of cosmetics brand image on consumers’ value perception, trust, and customer commitment. We asked consumers in Seoul and in Gyeonggi-do and Busan areas who were interested in cosmetics brands to fill a questionnaire; 270 questionnaire copies were distributed, of which 258 were returned and analyzed. The findings of this study are as follows. First, to strengthen the brand identity image, value perception, and consumers’ trust and positive relationship, it appears that one can get value from consumers’ perception and confidence. Second, a significant positive relationship was revealed between the consumer and brand trust, and value perception. Thus, high relative value in comparison with other brands, the brand, the brand trust (honesty, quality, and continuous quality improvement) is an important component that was previously unknown. Third, consumers’ value perception and brand trust, and customer commitment showed a significant positive influence. In other words, consumers’ drive, interest and affection for the brand, brand loyalty, and consumers’ value perception and pride on the particular brand are important factors. Cosmetics brand image in a positive and visible Improving research results through enterprise by increasing the value of the brand for consumers, improve confidence, and a positive effect on the commitment of the customers about the brand affects the end consumer of the purchase of also by stimulating the link leading to the purchase of the product is formed, it has been proven that. These positive responses to the leading cosmetics brand image can provide important information on marketing strategies to facilitate the purchase by consumers.
The purpose of this paper is to evaluate the delamination and fracture integrity of the IC plastic package under hygrothermal loading by stress analysis and fracture mechanics approaches. The plastic SOJ package with a dimpled diepad under the reflow slodering process of IR heating type is considered. On the package without a crack, the stress variation according to the change of the design variables such as the material and shape of the package is calculated and the possibility of delamination is considered. For the model fully delaminated between the chip and diepad, J-integrals are calculated for the various design variables and the fracture integrity is discussed. From the results, optimal design values of variables to prevent the delamination and fracture of IC package are obtained. In this study, FDM program to obtain the vapor pressure from the content of moisture absorbed into the package is developed.