• Environmental Analysis Health and Toxicology
• /
• v.25 no.3
• /
• pp.207-214
• /
• 2010

Toxicity identification and quantification are important factors to evaluate the effect of industrial effluent on the aquatic environment. In order to measure the potential and real toxicity of mixed chemicals in the effluents, the biological method (i.e., WET test) should be used as well as chemical analysis method. In this study, we conducted WET test for various kinds of industrial effluents using aquatic organisms such as water flea (Daphnia magna), algae (Pseudokirchneriella subcapitata), fish (Oryzias latipes, Danio rerio), and microorganism (Vibrio fisheri). In addition, we carried out chemical analysis and TIE (Toxicity Identification Evaluation) for effluents in order to identify the substances causing toxicity. Among the 30 kinds of wastewater, S13 showed the highest eco-toxicity and $Ca^{2+}$ and $Cl^-$ ion were suspected as major compounds causing toxicity for aquatic organisms. In order to confirm these suspected compounds, various confirmation procedures need to be carried out.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.33 no.2
• /
• pp.276-287
• /
• 2009

Apparel professionals need to understand the customer to effectively develop, select, and promote apparel products. Analysis of consumer preferences can help in the creative design process. Therefore the purpose of this study was to identify consumer preference by gender in two segmented group; $20{\sim}34$ aged group and $35{\sim}49$ aged group toward men's apparel consumers, considering target customers and female influences on men's wear purchasing. We used questionnaires that were distributed to 600 males and females aged in their 20s to 40s, using stratified sampling method. Only 547 reliable questionnaires were selected for statistical analysis. Chi-Square and t-test were used to analyze the data, using SPSS program. We obtained the following results: 1. We found that there was a significant association between segmented age group and the preference of men's jacket style. Specially $20{\sim}34$ aged group had a significant association with styles of formal jacket, casual t-shirts, casual pants, but $35{\sim}49$ aged group had formal pants style. Looking at the general percentage, semi-formal jacket, slim fit t shirt, straight casual pants were the most favored styles. 2. Age has an significant effect on the preferences of formal menswear fabric patterns and shirt patterns. The results of t-test showed that there found to be significant by gender in character and check pattern of shirts. 3. In design details, the number of button had not significance by gender, and 2 buttons was th most favored by both age groups. The number of gather at the waist had an significant association in $34{\sim}49$ age group. $20{\sim}34$ age group prefer high waist of pants, while $35{\sim}49$ age group prefer low waist of pants. 4. For on time outfit, formal wear and tie ensemble was the most favored with significant difference by age and gender. Formal wear and no tie ensemble favored by about one third of respondents, and more favored by the younger group. For off time outfit, casual jacket and casual pants ensemble was the most favored.

• Asia Marketing Journal
• /
• v.18 no.2
• /
• pp.45-61
• /
• 2016

Book adaptation has been considered an effective strategy in filmmaking. This paper examines the relationship between the box office sales and the performance of its original book focusing on category extension, especially investigating reciprocal spillover effect from a movie to the book. With empirical data, two-way causality between performance of the extension brand (i.e., movies) and that of the parent brand (i.e., books) was examined to test the existence of reciprocal spillover effect. In addition, a linear model was used to test the moderating roles of extension characteristics. The results revealed that the higher the movie's box office sales, the higher the original book's sales after movie's release. The authors also found moderation effects such that if the book has high level of brand awareness prior to movie's release, or if there is a movie tie-in version, or when the book is mentioned in movie trailer, or if the movie is released shortly after the book's publication, then the strength of spillover effect is superior. The current empirical investigation is meaningful considering it provides implications to both buyers and sellers of the extension rights, contributing to the literature of reciprocal spillover effects in category extension.

• Journal of the Korean Home Economics Association
• /
• v.45 no.5
• /
• pp.15-23
• /
• 2007

The purpose of this study was to understanding the intrinsic meanings and aesthetic characteristics expressed by current fashion trends in neckties and to develop a new and unique fashion design for neckties. This study used precedent studies and related literatures to review the changes in neckties and the types of knots used over time. The findings were then verified by photographs from fashion magazines and collections from the 1990s. The results of this study are as follows. First, neckties, generally regarded as a symbol of masculinity, are often mixed with other men's or women's clothing items rather than being worn by themselves, and they provide an androgynous characteristic in women's fashion. This transcendence of femininity or masculinity reflects the human desire to be a more perfect being by sharing each others characteristics, and it can be seen in contemporary beauty trends. Second, neckties have been transformed into scarves, waist belts, front-fly omaments, and so forth. They are used to express a new and sensational sense, the sense of deconstructionism, by breaking away from stereotypes and changing the shape of neckties atypically.

• Textile Coloration and Finishing
• /
• v.6 no.4
• /
• pp.34-39
• /
• 1994

For the purpose of obtaining high modulus PET tire cord fiber by high spinning speed, the change of initial modulus and taut tie molecules (T.T.M) fraction with the PET tire cord fibers by different spinning speed is investigated. Initial modulus decreased with increasing spinning speed but increased above spinning speed of 1500m/min. Therefore, high modulus PET tire cord fiber may be obtained above spinning speed of 3500m/min. It was found that the initial modulus of fibers depends on fraction of T.T.M.

• 한국경영정보학회:학술대회논문집
• /
• 2008.06a
• /
• pp.52-63
• /
• 2008

Virtuality is a product of the information age, and as it plays a larger role in the activities of individuals, groups and organizations, the issue of how human behavior varies between virtual and physical space has become one of the most important questions facing the management environment of today. The purpose of this article is to examine how virtuality shapes individuals' social relationships within and outside their work groups. We developed a conceptual framework that explores the links between virtuality and social network based on computer-mediated communication theory and social network theory. Using data from 172 individuals of 42 project teams in 5 global business consulting firms, we tested cross-level hypotheses. The results of hierarchical linear modeling (HLM) indicate that virtuality significantly influences individual's internal tie strength as well as external bridging ties. The results also show the effects of virtual process via CMC vary along with the virtual context.

• Proceedings of the KIEE Conference
• /
• 1999.11a
• /
• pp.28-30
• /
• 1999

This paper proposes a robust FPID(Fuzzy Proportional Integral Derivative) controller for the LFC(load frequency control) of 2-area power system. The PID gain parameters of the proposed robust FPID controller are self-tuned by PSGM(Product Sum Gravity Method) which is very similiar to human's inference procedures. As the results of simulation, the proposed FPID controller against various load disturbances shows that it is superior to the conventional control techniques such as optimal, PID and fuzzy control in the response characteristics of frequency and tie line power flow.

• Proceedings of the KIEE Conference
• /
• 2015.07a
• /
• pp.272-273
• /
• 2015

This paper analyze scenario of feeder wire fault that occurs in the AC feeding system considering train position. The fault location of AC feeding system is calculated by measuring impedance. However, in this way, estimation error can be occurred because of tie connection, boosting current, etc. Therefore, it's hard to find fault location, so that it is required to detailed circuit analysis according to fault location. We analyze the short circuit impedance values with respect to feeder wire fault according to a train position. In this paper, PSCAD is used for modeling and analysis of AC railway feeding system.

• Management & Information Systems Review
• /
• v.20
• /
• pp.17-32
• /
• 2007

We try to study the plan to deliver the message of the hope and common peoples are diligent and we can buy the real estate in work if we make efforts hard that relieve an real estate price and analyze a timex situation. If prepared the countermeasure in the government with many real estate policy with due to a short though countermeasure which is seen at one's face. The error to the people of the policy which does not do the staring gaze to tie. This paper to pursue the stability of an real estate price and analyze the price according to an real estate policy and lead an real estate policy for a residing stability of the common people. There are we even though we grope the method to actualize and protect a lease security according to a house lease law of protection.

• Proceedings of the Korea Concrete Institute Conference
• /
• 2005.05a
• /
• pp.67-70
• /
• 2005

In this study, an experimental investigation of the strength of R/C columns with 300mm square sections confined by head anchorage bar is presented. This initial phase of research considers only axial loading and consists of a total of 7 column tests. The main variables are distance and anchorage type of transverse reinforcement such as standard hooks and headed bar. The purpose of this study is to investigate the confinement effect and strength increment by head and to propose the confinement model for column using the head at end of lateral tie. Also, the test results for ultimate strength and strength gain factor of columns in this study and previous study is compared with the existing analytical models. Based on the test results, the Saatcioglu's model estimates confinement effects was closed to experimental value and the developed analytical approach considered the head was capable of predicting the strength gain factor results with a resonable accuracy.