• Smart Structures and Systems
• /
• 제3권2호
• /
• pp.173-188
• /
• 2007

The general solution for two-dimensional magneto-electro-elastic media in terms of four harmonic displacement functions is proposed analytically. The expressions of specific solutions of magneto-electro-elastic plane problems with specific body forces are derived. Finally, based on the general solution in the case of distinct eigenvalues and the specific solution for density functionally gradient media, two kinds of beam problems with body forces depending only on the z or x coordinate are solved by the trial-and-error method.

• Journal of information and communication convergence engineering
• /
• 제8권5호
• /
• pp.493-497
• /
• 2010

This paper address the problem of tracking multiple objects encountered in many situation in developing condensation algorithms. The difficulty lies on the fact that the implementation of condensation algorithm is not easy for the general users. We propose an automatic code generation program for condensation algorithm using MATLAB tool. It will help for general user who is not familiar with condensation algorithm to apply easily for real system. The merit of this program is that a general industrial engineer can easily simulate the designed system and confirm the its performance on the fly.

• 품질경영학회지
• /
• 제16권1호
• /
• pp.32-42
• /
• 1988

The general n/m job-shop problem is easy to state what is required, but it is extremely difficult to make any progress whatever toward a solution. This paper was first to examine a heuristic procedure of general n/m scheduling generation focused on the procedure of MWRK (Most Work Remaining) presented by Giffler and Thompson (1960) among others. Then modified procedure was proposed to obtain better solution in light of the key measure of performance compared with that of the literature presented by Baker (1974). The modified procedure then has been extended to other example problem to test the better results and to assure the properness of application.

• Journal of the Korean Society for Industrial and Applied Mathematics
• /
• 제26권1호
• /
• pp.1-22
• /
• 2022

A tandem queue that consists of nodes with buffers of finite capacity and general blocking scheme is considered. The service time distribution of each node is exponential whose rate depends on the state of the node. The blocking scheme at a node may be different from that of other nodes. An approximation method for the system based on decomposition method is presented. The effectiveness of the method is investigated numerically.

• 한국의류학회지
• /
• 제31권8호
• /
• pp.1310-1320
• /
• 2007

This study investigated the differences in the importance of store characteristics depending on on-line clothing store type and consumer age. The questionnaires were given to female residents in the ages between 20-39 in Seoul and Kyung-gi province during October 2006. The results were summarized as follows: 1. By analyzing the differences in importances of on-line store characteristics factors it was found that buying process service factor and product searching system factor were important in on-line general merchandise store. and buying process service factor and product factor(all the factors, such as store credit, product, screen-displayed design, searching and approaching system, customer management service) were important in on-line specialty store. 2. By analyzing the differences in importances of on-line store characteristics depending on the store type, buying process system such as refund policy, shipping, high-speed payment and rapid searching, screen-displayed design system, approaching and searching system were more important in on-line general merchandise store when comparing to specialty store. It also showed that the consumer considered the reputation of the store and its image more important in on-line general merchandise store. 3. By analyzing the differences in of on-line clothing store importance depending on age, in the case of on-line general merchandise store, it showed that people in their thirties regarded buying process service factor more important than twenties, and when it came to the product and searching system, it was vice versa. Twenties had a tendency to consider the aspect of product important and, relatively, thirties regarded searching and approaching system factor important. in the case of specialty store. It was found that women in their twenties had a tendency to consider product factor more important.

• 한국응급구조학회지
• /
• 제11권3호
• /
• pp.139-152
• /
• 2007

Background and Purpose : Emergencies in the school setting occurs frequently. Therefore, the role of first responders is important. General teachers in elementary schools are expected by first responders in school emergencies. This study attempted to assess needs and demands assessment on the first aid education of general teachers in elementary schools. Method : The subjects of this study were 71 general teachers from 8 elementary schools. Data were collected by the questionnaire during the period from March 19 to April 13, 2007. The data were analyzed through frequency, Cronbach's ${\alpha}$, Independent Two samples t-test, paired T-test, One Way ANOVA, Pearson's Correlation by SPSS win 12.0. Result : 1. It showed that 47.9%(34 persons) of general teachers answerd that they experienced emergencies in elementary school setting. Experienced emergencies were wounds(cut, laceration, abrasion etc.) 79.4%(27 persons), bleeding(including epistaxis) 64.7%(22 person), fracture(including dislocation, sprain) 44.1%(15 person), sting or bite 29.4%(10 persons). 2. It showed that 95.8%(68 persons) of subjects answerd that first aid education are necessary. Also 91.5%(65 persons) of subjects answerd that will be educated first aid if opportunities is given. 3. The total mean showed $2.39{\pm}.40$ in necessities of first aid education and $2.17{\pm}.36$ in needs of first aid education by 3 points Likert scale. Ranking 1 in necessities and needs of first aid education was bleeding control. 4. The total mean in necessities and needs of first aid education showed statistically significant differences(t = 3.453, p = .002). 5. The necessities of first aid education showed significant positive correlations with necessities and needs of first aid education(r = .521, p = .002). Conclusion : These results suggest that education program of first aid on elementary general teachers must be developed through necessities and needs assessment of first aid education and instructors must searched methods to increase needs of first aid.

• 동의생리병리학회지
• /
• 제28권4호
• /
• pp.452-459
• /
• 2014

The purpose of this study was to examine the correlation between general health condition and biopsychological traits of Sasang typology which determines the disease susceptibility and treatment responses. We had Korean Constitutional Multicenter Bank (KCMB) listed 1156 participants for measuring Sasang Personality Questionnaire (SPQ) and Body Mass Index (BMI) for biopsychological traits of each Sasang types as well as Short Form 12 (SF12) for general health status. All the analysis was performed with consideration of gender and age. We analyzed the differences in general health status between Sasang types and the correlation between general health status and biopsychological traits of Sasang typology. We also analyzed how much the selected SF12 subscales can be explained with biopsychosocial characteristics. There were no generaliszable differences among Sasang type groups in SF12, no significant correlation between biopsychological traits and SF12 Physical and Mental Component Summary. We found that there were significant correlations between SPQ-Behavior subscale and SF12 Vitality, and the regression model with SPQ-Behavior, SPQ-Emotionality, age and sex can predict 15.4% of the total variances in SF12 Vitality. We discussed the possibility that the Sasang typology is not a determinant of general health status but a moderator for the susceptibility and response. This study would contribute to the development of Sasang type-specific life nurturing program focusing on the psychological perspectives.

• 대한지리학회지
• /
• 제39권4호
• /
• pp.602-619
• /
• 2004

본 연구에서는 유통시장 개방 시기를 전후하여 일어난 소매환경 변화에 따른 대전광역시(이하, 대전시)의 소매업 변화와 그 결과 달라진 종합소매점들의 공간구조를 고찰하였다. 유통시장 완전개방이후 본격화된 국내 대형할인점 성장으로 소매업 구조와 소매공간구조가 달라졌으며, 1996년과 2001년을 비교해 본 결과는 다음과 같다. 첫째, 대형할인점의 성장에 따라 소매업 내 종합소매점의 비중이 증가하였다. 둘째, 종합소매업 각 업태들은 차별적인 성장 패턴을 보이고 있다. 셋째, 종합소매업의 업체수는 뚜렷한 집중지역은 나타나지 않지만 대부분 지역에서 감소하였고. 매출액은 원도심에서 신도심으로 그 중심이 바뀌었을 뿐 아니라 그 규모도 증가하였다. 차후소매공간구조 연구에서는 지역성에 따른 상품구색과 같은 보다 다양한 변수를 고려해야 할 것이다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제13권3호
• /
• pp.767-773
• /
• 2012

The esophageal squamous cell carcinoma (ESCC) is an aggressive tumor with a poor prognosis. Understanding molecular changes in ESCC should improve identification of risk factors with different molecular subtypes and provide potential targets for early detection and therapy. Our study aimed to obtain a molecular signature of ESCC through the regulation network based on differentially expressed genes (DEGs). We used the GSE23400 series to identify potential genes related to ESCC. Based on bioinformatics we constructed a regulation network. From the results, we could establish that many transcription factors and pathways closely related with ESCC were linked by our method. STAT1 also arose as a hub node in our transcriptome network, along with some transcription factors like CCNB1, TAP1, RARG and IFITM1 proven to be related with ESCC by previous studies. In conclusion, our regulation network provided information on important genes which might be useful in investigating the complex interacting mechanisms underlying the disease.

• 공학교육연구
• /
• 제11권3호
• /
• pp.24-32
• /
• 2008

한국의 공과대학의 교육 목표는 1) 전공교육의 강화, 2) 팀워크능력, 커뮤니케이션 스킬, 비판적 사고력 등을 포함하는 공과대학 소양의 함양 두 가지로 요약될 수 있다. 이 두 가지 교육 목표를 달성하기 위한 시도로 제안된 것이 공학소양교육이다. 현재 공과대학의 교양교육 개선안에는 전공에 구애받지 않는 보편적 교양교육을 강조하고 있는 미국형과 일반 교양교육과 구분되는 공학소양교육의 필요성을 강조하는 한국공학교육인증원형으로 구분된다. 본 연구는 한국공학교육인증원의 공학소양교육과정을 교육과정 개편에 적용한 서울대학교 공과대학의 교양 교육과정 개편 내용과 그 의미를 탐색하였다. 이 논문에 제시된 서울대학교 공과대학 교양교육 개선안은 교양교육의 학점 중 학생들의 자유선택 과목의 비중을 줄이고, 공학소양교육으로 이수하게 하는 방안을 포함하고 있다. 이 방안은 전공에 구애받지 않는 공통적 교양교육의 틀을 지키면서 전공과 단과대학의 특성을 반영하는 전공소양형 교양교육을 강조하는 현실적 방안으로 평가될 수 있다.