• Journal of the Microelectronics and Packaging Society
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• v.23 no.4
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• pp.49-55
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• 2016

Nowadays there are magnetic sensors in a wide variety of equipment such as computers, cars, airplanes, medical and industrial instruments. In many of these applications the magnetic sensors offer safe and non-invasive means of detection and are more reliable than other technologies. The electric current in a conductor generates a magnetic field detected by this type of sensor. This work aims to define a package dedicated to an electrical current sensor using a MTJ (Magnetic Tunnel Junction) as a sensing device. Four different proposals of packaging, three variations of the chip on board (CoB) package type and one variation of the thin small outline package (TSOP) were analyzed by COMSOL modeling software by simulating a brad range of current injection. The results obtained from the thermal and magnetic analysis has proven to be very important for package improvements, specially for heat dissipation performance.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.36C no.11
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• pp.18-28
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• 1999

A new equivalent circuit model of package (SOP, Small Outline Package) is presented for designing radio frequency integrated circuits (RFIC). In the RF region, the paddle of a package does not work as an ideal ground. Further parasitics due to both coupling and loss have a substantial effect on MMIC. The equivalent circuit model and parameter extraction methodology for the electrical characteristics of the package are described by illustrating the SOP type packages. The accuracy of the model is evaluated by comparing the s-parameters of the commercial full-wave solver and those of HSPICE simulation with the circuit model. The proposed model shows an excellent agreement with full-wave analysis up to about 8GHz.

• Journal of Family Resource Management and Policy Review
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• v.1 no.1
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• pp.101-115
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• 1997

This study was designed to examine the socialization of household work utilizing ecological theory. The main purposes were to identify the socialization level, and to predict the socialization of household work in term of the selected variables. The sample was drawn from housewives of expanding stage of family life cycle in Seoul. 518 respondents were analyzed using SPSS/PC+ statistical package. The results of this study were as follows: 1. Among the variables of food area, education of housewife, type of housing, family income, number of children had significant influence. 2. Among the variables of clothing area, family income was the only important variable. 3. Among the variable of housing area, number of household equipment, number of aids for household work, education of housewife, family income, attitude of housewife’s role, number of aids for household work had significant influence. 4. Among the varables of home management area, number of household equipment, family income, self control had significant influence. 5. Among the environment variables of household work, social-cultural environment had the most important effect on the socialization of household work.

• Journal of the Korean Dietetic Association
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• v.7 no.4
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• pp.397-409
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• 2001

The purposes of this study were to identify customer expectation, perception and satisfaction of foodservice quality to analyze the influencing factors on foodservice quality and finally to provide basic information for the improvement of foodservice quality. A survey of 4 factory foodservices was undertaken and detailed information was collected from 675 respondents. Statistical data analysis was completed using the SPSS package program for descriptive analysis, t-test and one-way ANOVA. Male had higher scores than female in perceptions of foods and services, and the differences were statistically significant. As analysis of expectation, perception and satisfaction result of age, expectation and perception were statistically significant, and mostly expectation and perception increased according as age increased. Expectation and perception showed statistical differences by marital status. Married people had higher scores in expectation and perception of food and service than single. According to family type, respondents living alone showed lower scores in expectation and perception of food and service than those living with family or relatives. Conversely, living alone had high expectation on service. As analysis of work type, office workers showed higher scores of service expectation, food and service perception than production workers. As education level increased, food and service expectation and perception increased mostly. As analysis of work post, food and service expectation and perception increased as work post raised. Meanwhile, married people had higher scores in service quality of satisfaction than single. Result of the study can be summarized as follows the analysis of expectation, perception and satisfaction of foodservice quality, the Quadrant of food and service quality expectation and perception according to demographic variables. Expectation, perception and satisfaction scores of foodservice attributes according to work type. The distribution of attributes with satisfyingly significant difference in grid.

• Journal of Fashion Business
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• v.8 no.2
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• pp.91-101
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• 2004

This research classified fashion merchandisers into different categories depending on the type of companies they worked for and inquired into their line of work. In so doing, the authors attempted to outline the work for merchandise mix performed by each type of merchandiser and provide some raw data, which can be utilized to enhance their work efficiency. The evaluation tool used for this study was the questionnaire made on the basis of preceding studies, literature, and trade journals, which was then modified through one on one interviews with fashion merchandisers. The questionnaire contained 15 questions about merchandise mix. For data analysis, SPSS Package Program was used to conduct frequency analysis, ANOVA, and Tukey's test. The findings are as follows 1. National brand merchandisers spent most time on merchandise planning, then department store buyers, followed by imported brand merchandisers, and lastly buying office merchandisers. 2. In merchandise planning, National brand merchandisers did more work overall compared to other merchandisers. In production planning, buying office merchandisers spent more time than any others on searching for new suppliers and decision-making. 3. Production planning took up a greater portion of their work for National brand merchandisers and buying office merchandisers compared to department store buyers and imported brand merchandisers. 4. Imported brand merchandisers spent more time on purchase planning and actual purchase compared to any others.

• Journal of the Korean Society for Library and Information Science
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• v.33 no.1
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• pp.49-65
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• 1999

The purpose of this study was to examine the impacts of individual factors, such as demographic characteristics, personality types and cognitive styles, on job satisfaction of university librarians. The study further investigated the relationships and interaction effects among those factors. Three independent variables examined were demographic characteristics (sex, age, year at work, and position), personality types (Type A and Type B), and cognitive styles (Held-dependence and Held-independence). The dependent varilable was the level of job satisfaction. five factors that affect the level of job satisfaction were the nature of work, salary level promotion practices, supervision style, and the relationships with co-wokers. The number of subjects participated in the study was 166 university librarians working in Pusan area. The SPSSWIN package was used for statistical analysis.

• Journal of the Korean Society of Clothing and Textiles
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• v.27 no.3_4
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• pp.373-383
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• 2003

The purpose of this study was to investigate the effects of personal characteristics on job stressors, job stress symptoms, and job performance of workers in fashion and textile industries. Personal characteristics includes gender, marital status, educational level, age, type of industry, type of occupation, job position and work period. The data were obtained from questionnaire completed by 529 workers who were employed by textile or clothing manufacturers located in Seoul, Daegu, or Gyeongsang-do province. The SPSS package was used for data analysis which includes frequency, factor analysis, t-test, ANOVA and Scheffe's test. The results indicated that all personal characteristics had significant effects on job stressors, job stress symptoms, and job performance. Age and job position among personal characteristics showed to be the most important variables which influenced job stressor, job stress symptoms, and job performance.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.200-210
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• 2020

The maintenance of educational facilities was assembled in 12 project classifications of the Educational Improvement Program. The priorities were decided by the evaluation scores derived from the condition investigation, and maintenance works were budgeted in the order of priorities. These priorities were a schedule for conducting maintenance and an important criterion for obtaining a construction order. Several restrictions in the condition investigation exist, which derives budgets and conducts maintenance separately based on the priorities. An educational facility manager has a restriction in quantity take-off, which results in an incorrect budget. Discomfort would occur in an educational environment, and a period of infringing safety would increase. This study proposes applying a BIM in the condition investigation and the planning framework for work-type packaging. A BIM supports a budget calculation and derives evaluation scores by linking a repair and an inspection result. The work-type packaging algorithm divides a budget allocation range and derives the result of a grouped work-types applied in an equivalent space and element. As a result of applying cases, it could shorten the duration by approximately 37.4%. Its usability in selecting a grouped work-type was evaluated through an assessment with workers.

• Korean Management Science Review
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• v.27 no.3
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• pp.117-135
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• 2010

The purpose of this study is to segment the mobile phone users based on the flow types and to understand the differences in mobile phone usage behavior between the segmented groups. The 'flow' construct, which was introduced first in marketing by Hoffman and Novak[44], has been used as an important keyword for understanding consumer behavior on the World Wide Web. In this paper, we will try to use the flow aspect for the mobile market segmentation, which is one of the most fundamental tools for developing a successful marketing strategy on the mobile phone service market. We collected survey data from consumers and analyzed the data with the SPSS 12.0 package where we did ${\chi}^2$-test, factor analysis, one-way ANOVA and cluster analysis. Main results of this study are as follow. First, the flow types of the mobile phone users were classified into five types, which are named as the 'Flow' type, 'Apathy' type, 'Anxiety' type, 'Boredom' type, 'Control' type. Second, most of the results related to the usage of mobile phone service showed statistically significant differences between flow types. These findings suggest that the mobile phone service marketers should consider the various flow types of users and work out effective market segmentation strategies based on these consumer flow types.

• The Korean Journal of Community Living Science
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• v.20 no.2
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• pp.263-274
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• 2009

The objective of this study is to verify work satisfaction of school food-service employee, of their job characteristics. Subjects were comprised 9 elementary schools, 11 middle schools, and 3 high schools in Ansan city. Data were analyzed 203 questionnaires for frequency, means, one-way ANOVA, $Scheff{\acute{e}}$ test, t-test, and Pearson correlation using SPSS PC Package. Most of the respondents were high school graduate(91.1%), under one million won salary(41.9%), and non license holder(60.6%). Working conditions were part-time job(41.9%), unlimited contractors(51.2%), and 3-5 years of working experience(21.7%). Measure of overall job satisfaction by Likert-type 5 scale, satisfaction of work operation attitude was 3.55 points and work characteristic duty of 4.32 points. The certificate qualified and elementary school's working posture were more satisfied their work attitude than other groups(p<0.05). Salary satisfaction score showed 2.64 points, but the work esteem satisfaction showed 3.34 points. The factor of working circumstance and potentiality satisfaction was only 2.61 points, but interpersonal connection and communication satisfaction was 3.50 points. Between job satisfactions factors, they were highly correlated with each other. The pride and characteristic duty of the work showed the strongest correlated(p<0.001). The satisfaction score of work operation attitude were significantly correlated with characteristic duty(p<0.001), work esteem, interpersonal relationships and communication(p<0.01). With this results, work satisfaction of food service employees showed a relatively high to perform a job task characteristics and work attitudes. However, the working environment and growth in salaries satisfaction were low. A set of duties must be paid according to the labor intensity. As removing the disturbing factors, the improvement in the quality of the feed will be able to expect substantial effects.