• 제목/요약/키워드: frequency and correlation analysis

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물질주의, 의류쇼핑성향, 의류충동구매간의 관계 (The study of the relationship among materialism, clothing shopping orientation and clothing impulse buying)

  • 정미실
    • 한국생활과학회지
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    • 제24권6호
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    • pp.829-846
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    • 2015
  • The purpose of this study was to examine the influence of materialism and clothing shopping orientation on clothing impulse buying. The subjects were 309 female college students in Gyeongsang provinces. The obtained data were analyzed by reliability analysis, frequency, factor analysis, correlation analysis and regression analysis. The major results of this study were as follows: First, two factors of materialism were identified: happiness pursuit materialism and possession pursuit materialism. Second, two factors of clothing shopping orientation were identified: conspicuous shopping orientation and hedonic shopping orientation. Third, a significant positive correlation was found among two factors of materialism, two factors of clothing shopping orientation, and clothing impulse buying. Fourth, possession pursuit materialism influences clothing impulse buying through conspicuous shopping orientation. Fifth, happiness pursuit materialism influences clothing impulse buying through hedonic shopping orientation.

일부지역 119 노인전용구급차(Silver Ambulance)의 활동분석 및 발전방안 (Analysis and Research of 119 Silver Ambulance Activities and Its Development Methods)

  • 권혜란
    • 한국응급구조학회지
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    • 제11권3호
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    • pp.191-204
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    • 2007
  • This study analyzes use and operation of silver ambulance with 110 patients who had used silver ambulance in Gwangju and Jeonnam regions from June of 2006 to June of 2007 and 53 paramedics who are involved directly in ambulance operation and the results of this analysis are as follows. 1. Users' health conditions, 69.1% of users answered as bad and 67.3% suffered from chronic diseases over 3 months and it was found that they used silver ambulance due to their bad health conditions. 2. Cronbach's alpha was 0.630 and family function index was generally reliable and solution was high as 1.60, but total points were low as 7.11 and it was considered that they had family troubles. 3. On the question of ambulance use, 44.5% answered they used it because it is free, 53.6% used it for appointed medical examination and treatment and 18.1% used it for emergency. 4. Degrees of satisfaction with ambulance and paramedics were 95.4% and 76.4% respectively and 80.0% of ambulance users answered ambulance arrived quickly within 15 min. 5. Correlation($x^2 $) between family or relative's residence and frequency of visits was 86.367 and its significance probability was 0.00 and it was found that it was significant in the level of 0.1%, but correlation($x^2 $) between visitors other than family or relatives and frequency of visits was 14.768 and its significance probability was 0.25 and it was found that it was not significant in the level of 5%. 6. Correlation($x^2 $) between transfer operation speed and mobilization time was found that it was not significant in the level of 5%. Correlation($x^2 $) between their own health condition purpose of ambulance use was 13.802 an 5.696 and its significance probability was 0.93 and it was found that it was not significant in the level of 1%, and it was considered because paramedics carried patients with safe operation.

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청년기 자녀의 아버지와의 커뮤니케이션과 자아개념에 관한 연구 (A Study on the communication with father and the self concepts of adolescents)

  • 이경주;신효식
    • 가정과삶의질연구
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    • 제8권2호
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    • pp.1-13
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    • 1990
  • The purpose of this study were to investigate the socio-demographic variables influencing the communications and the adolescents' self concepts, and to define the correlation between the communications and the adolescents' self concepts. For this purposes, a survey was conducted using questionnaire. The data used in this study included 478 boys and girls in high school living in Kwangju. Statistics used of data analysis were Frequency Distribution, Percentile, Mean, Standard Deviation, F-test, Scheffe-Test, Pearson's Correlation, and Step-wise Multiple Regression. The main results were as follows; 1) The communication between fathers and their adolescents children differed significantly by education level , occupation, and income of their fathers. 2) the self concept differed significantly by sex of children, educational level, occupation, and income of their fathers. 3) The correlation between self concept and communication among fathers and their adolescents children marked positive correlation except Self-Criticism. 4) The mose influencial variables on communication between faters and their adolescents children were the Family Self Score.

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VHF대역에서 원격운용 방향탐지안테나 소자의 스위칭에 의한 상관벡터방향탐지 버스트에러 제거 알고리즘 성능분석 (The Performance Analysis of Burst Error Elimination CVDF Algorithm Using Switching Remote Direction Finding Antenna in VHF)

  • 원종묵
    • 한국군사과학기술학회지
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    • 제10권3호
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    • pp.129-138
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    • 2007
  • Recently, Direction Finding(DF) System is using switching DF algorithm to reduce system-weight by eliminating RF cable as much as possible. Also, Correlation Vector Direction Finding(CVDF) algorithms is being used for Fast Direction finding in tactical environment. In this paper, I will give you burst error elimination algorithms and compare the performance in case we use switching CVDF algorithm. Although antenna array is not working, we will successfully perform direction finding when we use this burst error elimination algorithms. Also, we will be completely capable of DF mission despite of meeting the unwanted situation that the monitoring signal disappear in case we use Switching Direction Finding algorithms. That situation frequently occurs under the Frequency Hopping signal circumstances.

TOF 소아 집단과 정상 소아 집단의 24 시간 심박동수 변동량의 비선형성 변화에 대한 정량적 분석 (A Quantitative Analysis of Nonlinearity Changes of 24 hour Heart Rate Variability of TOF Children Group and Normal Children Group)

  • 이종민;노정일;박광석
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1997년도 추계학술대회
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    • pp.451-454
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    • 1997
  • It has been reported that sudden cardiac death and ventricular tachycardia occur after treatment of tetralogy of fallot(TOF). It is regarded that ventricular arrythmia is the main source or the sudden cardiac death, but it is not verified. It is likely that TOF has effect on the heart rate variability because of the ventricular arrythmia. We study how complex and periodic heart rate dynamics change in the normal children (n=13) and TOF children (n=13) throughout 24 hours. We recorded 24-hour holter ECG, and segmented each ECG data into 1 hour length. We analyze each HR time series, and quantify the overall complexity of each HR time series by its correlation dimension. We also calculate the power spectrum of HR, and obtain low-frequency component (0.03-0.15Hz) and high-frequency component (0.15-0.4Hz). We compare the results between normal and TOF groups throughout 24 hours. TOF group have lower correlation dimension ($4.055{\pm}0.4134$ vs. $4.9310{\pm}0.2054$, p<0.05) than the normal group, even though there are no significant differences in the low($0.9864{\pm}0.5598$ vs. $1.5560{\pm}0.8325$, p<0.05) and high($1.1168{\pm}0.1.1448$ vs. $0.9271{\pm}0.6528$, p<0.05) frequency components. It can be concluded that HR time series of TOF group are more regular than that of normal group, and that correlation dimension reveals a nonlinear characteristics of HR time series which is not determined in the frequency domain.

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식육가공품에 대한 영양사의 인식 및 이용실태조사 -경남지역을 중심으로 (Dietitians' Perception and Usage of Processed Meat Products -Kyungnam Area)

  • 이영순;이동선;류은순
    • 한국식품조리과학회지
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    • 제21권6호통권90호
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    • pp.813-822
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    • 2005
  • This study examined the dietitians 'perception and usage of processed meat products in institute foodservices. Out of 368 questionnaires collected from the subjects in school and business foodservices, 341 were chosen for statistical analysis after 27 were excluded for improper responses. According to the results, dietitian perceived the processed meat products food positively in terms of 'convenience'(3.94) and 'taste'(3.30), but negatively in terms of 'package'(275) and'additive'(2.01). In the frequency of usage, they used 'Ham'(2.51) the most frequently, followed in order by 'Wanja'(2.17), 'Dongas'(1.99), 'Tangsuyook'(1.82), 'Hamburg Steak'(1.71), 'Dduckgalbi'(1.59), 'Bacon'(1.50), 'Luncheon meat'(1.39), and 'Smoked meat'(1.30). The perception of processed meat products was more different according to institutes than dietitian. For dietitian, the frequency of usage was different according to their age and career, while for institute, it differed according to the type of management and the cycle of menu. Also dietitian placed the most importance on 'taste and preference'($90.1\%$) in buying and 'balance of nutrition'($72.0\%$) in cooking processed meat products (Ed- there is no respective comparison here). Finally, in the correlation analysis between perception and usage of processed meat products, the taste had positive correlation with 'Hamburg steak', 'Tangsuyook', and 'Dongas', the additive had positive correlation with 'Tangsuyook', and convenience had negative correlation with 'Tangsuyook' Based on the results of this study, the Processed meat products should be researched, developed, and supplied, with consideration for institution foodseuices.

청력수준에 따른 초등학교 아동의 기본주파수 비교 (The Comparison of Fundamental Frequencies of Children with Different Hearing Level)

  • 윤미선
    • 대한음성학회지:말소리
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    • 제52호
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    • pp.49-60
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    • 2004
  • The purpose of this paper was to evaluate the effect of hearing level on fundamental frequencies in children. Participants totaled sixty children divided by three groups: congenitally deafened children with cochlear implantation(CI), congenitally deafened children with hearing aids(HA), and children with normal hearing(NH). Fundamental frequencies were measured during the sustained phonation of a vowel /a/. There was statistically significant difference of fundamental frequencies across the groups(p<.01). In post hoc analysis, HA and NH group showed statistically significant difference, but CI group didn't showed significant differences with two groups. In correlation analysis between F0 and the chronological age, there were significant negative tendencies in CI and NH group, but not in HA group. The characteristics of fundamental frequency in CI group were found similar to NH group than HA group in this study. Therefore the results of this study suggest that the hearing level is one of the influencing factors to the fundamental frequency of children.

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A Motion Detection Approach based on UAV Image Sequence

  • Cui, Hong-Xia;Wang, Ya-Qi;Zhang, FangFei;Li, TingTing
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제12권3호
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    • pp.1224-1242
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    • 2018
  • Aiming at motion analysis and compensation, it is essential to conduct motion detection with images. However, motion detection and tracking from low-altitude images obtained from an unmanned aerial system may pose many challenges due to degraded image quality caused by platform motion, image instability and illumination fluctuation. This research tackles these challenges by proposing a modified joint transform correlation algorithm which includes two preprocessing strategies. In spatial domain, a modified fuzzy edge detection method is proposed for preprocessing the input images. In frequency domain, to eliminate the disturbance of self-correlation items, the cross-correlation items are extracted from joint power spectrum output plane. The effectiveness and accuracy of the algorithm has been tested and evaluated by both simulation and real datasets in this research. The simulation experiments show that the proposed approach can derive satisfactory peaks of cross-correlation and achieve detection accuracy of displacement vectors with no more than 0.03pixel for image pairs with displacement smaller than 20pixels, when addition of image motion blurring in the range of 0~10pixel and 0.002variance of additive Gaussian noise. Moreover,this paper proposes quantitative analysis approach using tri-image pairs from real datasets and the experimental results show that detection accuracy can be achieved with sub-pixel level even if the sampling frequency can only attain 50 frames per second.

기후변화 및 식품 관련 뉴스기사의 텍스트 마이닝 (Text mining on internet-news regarding climate change and food)

  • 현윤진;김정선;정진욱;윤시몬;이문수
    • Journal of the Korean Data and Information Science Society
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    • 제26권2호
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    • pp.419-427
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    • 2015
  • 기후변화와 식품 관련 정보가 유기적인 관련이 있음에도 불구하고, 사실상 현실에서는 사용자들이 직접 그 관련성에 대한 관심을 가지고, 해당 정보에 대한 접근이 용이하다고 말하기는 어렵다.본 연구는 실제 사용자들이 직접적으로 노출되는 인터넷 포털 사이트의 뉴스 기사에 대한 빈도분석 및 연관관계 분석을 통해 기후변화 및 식품 관련 정보가 어느 정도의 연관성을 가지고 얼마나 자주 나타나고 있는지에 대해 파악하였다. 또한 추출된 기후변화 및 식품 관련 뉴스를 대상으로 기후변화 용어 사전과 식품 관련 용어 사전을 활용하여 기후변화 관련 용어와 식품 관련 용어의 총 59개의 연관관계 규칙을 도출함으로써, 특정 기후변화 관련 용어가 어떠한 식품 관련 용어와 연관관계를 갖는지 파악하여, 추후 두 용어를 패키징해 제공할 수 있는 발판을 마련하였다.

사상체질에 따른 감정표현불능 성향, 반추사고, 우울감 및 신체화증상의 비교 분석: 거제지역에 거주하는 일반인을 대상으로 (A Comparative Analysis on Alexithymia, Rumination, Depression and Somatic Symptoms by Sasang Constitution in Geoje area)

  • 이봉희;이우경
    • 사상체질의학회지
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    • 제25권4호
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    • pp.330-342
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    • 2013
  • Objectives This study was to examine the differences on alexithymia, rumination, depression and somatic symptoms by each Sasang constitution, and aimed at combining the psychological construct with Korean medical treatment. Methods One hundred eighty men and women aged from 20 to 69 who reside in Geoje-si were selected, and data from 173 people consisting of the three constitutions-Soyangin(39), Taeeumin(83), and Soeumin(51), excepted the minority sample of Taeyangin(7 people)-were analyzed. Collected data were analyzed and tested by IBM SPSS Statistics 20: frequency analysis for demographic data; t-test for gender differences; one-way ANOVA for differences among three constitutions; and Pearson correlation analysis for the correlation between variables. Results The result of t-test taken for the gender differences between variables was not significant. According to the result of one-way ANOVA conducted by different Sasang constitutions, no variables showed a significant result except that of alexithymia. The correlation analysis showed that the alexithymia had positive correlation with rumination, depression, and somatic symptoms. Rumination was in positive correlation with depression and somatic symptoms. Especially, depression had high positive correlation with somatization symptoms. Among the variables analyzed by each constitution, only the survey result of the alexithymia was significant. Conclusions Given that each constitution showed different levels of the alexithymia, it can be concluded that therapeutic intervention in the treatment for the Taeeumin who shows a high level of alexithymia is needed to improve their emotional recognition and expression. In this context, application of program which focus on the emotional ability such as emotion coaching to the Korean medical treatment is expected to improve alexithymia, depression, and somatic symptoms.