• 한국치위생학회지
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• 제10권4호
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• pp.617-625
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• 2010

Objectives : The research which sees collected information about dentistry infection management recognition of the patients and the infection management which the medical treatment consumer does in necessity is what, grasped and satisfaction and became the fundamental data which makes the hospital will be able to trust about dentistry image rise and dentistry environment of the medical treatment consumer who assists a dentistry character executed. Methods : From 2009 April 1st until May 28th 233 people common people who have the experience which visits a Gyeongsangnam-do area dentistry the object with the entry question law which sleeps did and the data analysis SPSS, 12.0 For Window under using produced each question item by frequency and a ratio, the analytical degree of infection management One - Way ANOVA stamps and executed t-test. Results : Information experience experienced about dentistry infection of the investigation object person to be, appeared with 74.7% and the after that dentistry assistance at the time of conduct change which experiences the answer back regarding of Former times attentively observes organization disinfecting' was most with 46.6%. The protective equipments wearing goal of the dentistry medical attendance appeared the dentistry medical attendance and patient protection 77.7%, dentistry medical attendance protection 12.9%, by patient protection 9.4% order. Before medical treatment starting of the dentistry medical attendance the hand Does not confirm' appeared 72.1%, with. The hand washing, is whole and the degree which appears is high with 4.11 points the stamp. Is high there was a possibility of knowing the thing about the recording infection where the educational background will be high and considers statistically the difference which was visible Conclusions : The education which is active and continuous is necessary about infection management and sets the guides which are standardized to the patients and about infection management and about infection prevention and exposes from dentistry practices well to emboss the thing is thought that there is a necessity to plant a trust feeling about the dentistry where the patients assist.

• 한국조리학회지
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• 제21권3호
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• pp.181-197
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• 2015

본 연구를 수행하기 위하여 호텔 조리사들의 아열대 채소에 대한 인지된 가치, 품질, 가격에 대한 인식을 조사하여 조리사들의 아열대 채소에 대한 신뢰와 이용의도, 구전의도 등을 조사하였다. 이 연구를 수행하기 위하여 서울 시내에 있는 호텔 조리사 중 아열대 채소를 경험해본 조리사들을 대상으로 연구를 진행하였다. 2014년 10월 1일부터 20까지 총 20일 동안 380부의 설문을 배포하여 불성실한 응답을 제외하고 총 353개의 설문을 분석에 이용하였다. 353개의 설문을 가지고, 빈도분석, 요인분석, 상관관계분석, 회귀분석을 실시하였다. 분석결과, 아열대 채소의 지각된 가치, 지각된 품질, 합리적 가격요인은 신뢰에 긍정적인 영향을 주었고, 신뢰는 구매의도와 구전의도에 긍정적인 영향을 주었다. 마지막으로 구매 의도는 구전에 긍정적인 영향을 주었다. 그러므로 아열대 채소의 품질을 높이고, 가격을 합리적인 수준으로 생산량을 늘리고, 제품에 대한 영양적, 기능적 연구에 노력하여 좋은 식재료가 될 수 있도록 노력해야 한다.

• 한국운동역학회지
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• 제22권2호
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• pp.159-171
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• 2012

The purpose of this study was to provide information about kinematic variables of the gliding and delivery motion of Hyung-Keun Lee, a high school shot putter who was ranked 1st at the 2011 National Sports Festivals. Three-Dimensional motion analysis using a system of 4 video cameras at a sampling frequency of 60 Hz was conducted during shot-putting events at the 2011 National Sports Festivals. During the gliding and delivery phase of the player the results showed following characteristics; 1) The gliding technique types of the player appeared to be the short-long technique as the gliding and stance length ratio were $42.3{\pm}3.87$ % and $57.7{\pm}3.87$ %, respectively. In addition, the trajectory of shots during the gliding and delivery phase showed different trajectory patterns with "S-shaped" type of elite players due to the deviation from a central axis of the APSS (athletic-plus shot system). 2) The horizontal velocity of COG made from gliding should maintain the velocity during transition and release phase, but the player showed a small momentum for a gradual decrease of velocity. 3) Therefore, the player requires to adjust an appropriate ratio between gliding and stance length with a strong muscle power at the trunk, throwing arm, and the lower extremity during gliding and delivery phase.

• 한국학교보건학회지
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• 제15권1호
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• pp.83-92
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• 2002

This study was undertaken to verify various relations between dental health belief and related behaviors in mothers and children. Data for this study were obtained by 264 pairs of 1st and 3rd grade elementary school children and their mothers by self developed questionnaire, The questionnaires are made on the general socio-economical characteristics, the oral health knowledge and the behaviors relative to the oral health and oral health education as to how mothers implement the oral health related activities for their children, while for the children, the questionnaires have been measured relative to the oral health beliefs and health behaviors for the children. The obtained results have shown that mothers become with more ages, the usefulness to prevent children's oral diseases becomes lower, and as much as mothers have higher education level, the sensitivity relative to the oral diseases has been measured low. To the degree that the students live well in economical respect, it has been found that they placed more importance on the oral health. As much as the number of mothers tooth brushing becomes made more in a day, the tooth brushing of the children becomes more that much, and also has higher level of oral health beliefs. The number of children to see dentists has been found high, and to the extent of increasing frequency of visiting dental clinics. As the number of mothers tooth brushing education becomes made more frequent for the children. Also, as mothers put more restriction on the sugar intakes by the children, they placed higher importance on the oral health for their children. In conclusion oral health behavior in mothers' influence on dental health belief of their children, it has been reviewed necessary to activate more the mother-children joint oral health education and oral health projects that mothers and children take part together, as well as to study more in accurate and systematic approaches through more comprehensive and various subjects and elements further in the future.

• 산경연구논집
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• 제11권11호
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• pp.29-38
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• 2020

Purpose: The problem of housing poverty among young people is a very important problem for the nation. Therefore, the main purpose of this paper is to identify the problems of the government's housing support policy for young people. And it is in presenting specific solutions by fully reflecting the opinions of experts. Research design, data and methodology: This study consisted of analyzing the following three research topics: 1) the differences of youth residential support housing policy impact on young adults' housing stability, 2) the problems and solutions of youth housing support policy, and 3) the differences of experts' opinions on the impact of government policy on youth housing stability. The subject of this study is the government's seven housing policies for young people. The targets include Happy Public Rental Housing (Happiness Housing), Station Area Rental Housing for youth (Station Area 2030), Public Dormitory for College Students (Public Dormitory & Hope Dormitory), Jeonse Rental Housing for College Students (Subject Lease Rental Housing for College Students), Social Housing for Young People, and Share House. The data was organized through expert surveys from 1st to 30th June 2020. The experts surveyed include professors & researchers, public officer & public institutions staff, and private developers of young adults' housing. The methodology of analysis on the problem and the solution of government policy was Frequency analysis. And analysis methods on differences of experts' opinion were ANOVA, Levene' test, and Schefe test. Results: Problems in Government's youth residential support housing policy include high rents, lack of supply, difficulty in acquiring rental housing, inconvenience in using shared spaces, conflicts with cohabitants, and invasion of privacy. Solutions include expanding supply to urban areas, establishing long-term plans, securing privacy, diversifying business methods, establishing platforms for rental housing transactions, and expanding various public support (financial support, etc). Conclusions: There was a difference in perception among groups of experts on the impact of public rental housing (called 'happiness housing') in youth housing stability. It is very urgent to come up with the most reasonable policy to support youth housing. This requires in-depth discussions by experts to narrow their differences.

• 상하수도학회지
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• 제11권2호
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• pp.65-75
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• 1997

Removal characteristics of volatile organic carbons(VOCs) by ozone oxidation and other processes in the raw water of the 1st Nakdong water treatment plant were investigated. Dichrolomethane, toluene and other 7 compounds were detected in the raw water. With regard to detected 4 compounds in finally treated water, it was found that VOCs could not be removed effectively by traditional water treatment process. Benzene, 1,2-dichlorobenzne were not detected in the raw water but they were detected in the process of treatment. The compound of highest detection frequency was dichloromethane. When the raw water was controlled at pH 7, temperature $20^{\circ}C$, 5 minutes as contact time, 10 minutes as reaction time, the removal rate of THMFP, $KMnO_4$ demand, TOC, $UV_{254nm}$ and $NH_3-N$ were 46.4%, 22%, 19.6%, 31% and 8%, respectively. From estimating the finally treated water qualities in 7 kinds of treatment processes, P-6 process(raw water-chlorination-coagulation-ozonation) was most effective for organics removal and THMs control. Removal efficiencies for $KMnO_4$ demand and TOC by the process which combined preozonation with coagulation was twice better than only preozonation. $NH_3-N$ removal rate was shown as 10% by P-3 process(raw water-coagulation-ozonation), but 83% of $NH_3-N$ was removed by P-4 process(raw water-coagulation-chlorination). It was found that the chlorination is more effective than the ozonation for the NH3-N removal as commonly known.

• 한국전자통신학회논문지
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• 제10권6호
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• pp.665-670
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• 2015

본 논문은 마이크로웨이브 수신기 구성을 위한 광대역 RF 증폭기를 설계 및 제작하였다. 제안한 광대역 RF 증폭기는 수신된 신호의 안정적인 증폭을 위하여 소스단자에 연결되는 비아까지 EM설계를 하였으며, 능동소자의 소오스(Source) 측이 이상적인 접지(GND)로 동작함에 따라 발진하는 요소를 최소화 하여 광대역에서 일정한 이득 특성 및 안정적인 증폭특성을 얻도록 하였다. 상용 GaAs FET를 사용하고, 광대역 마이크로웨이브 수신기의 IF 주파수 대역인 720 MHz, 4,595 MHz와 6,035 MHz에서 동작하도록 입력 및 출력 정합회로를 구성하였다. 제작 및 측정결과 500 MHz ~ 7 GHz의 광대역 특성을 나타내었으며, 전압이득은 737.5 MHz에서 6.0575 GHz까지 10.635 dB ~ 13.129 dB, 기본파와 제2차 고조파 사이에서 20 dBc 이상의 고조파 억압특성을 나타내었다.

• 대한가정학회지
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• 제45권7호
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• pp.35-48
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• 2007

The purpose of this study was to examine the difference between the depression and anxiety related with maternal attachment security and those with self-esteem. The study subjects were 240 children's mothers from seven Community Social Welfare Service Centers in Seoul, Incheon, and Pyeongtaek, including those from 1st graders to 6th graders of 2 elementary schools in Seoul. Consequently, a total of 200 mothers were selected for this study. The data in this study were analyzed with SPSS 12.0 program by frequency analysis, technical statistics analysis, Cronbach's $\alpha$, Pearson's correlations, partial correlation analysis, and two-way ANOVA. The results of this study are as follows: (1) Paternal attachment security and maternal attachment security indicated a moderate level of negative correlation with depression and anxiety. Self-esteem showed a high level of negative correlation with depression and anxiety. For self-esteem, we divided the subjects into two groups of high and low self-esteem. In the former, anxiety was significantly negatively correlated with paternal attachment security and depression was not significantly correlated with maternal attachment security and paternal attachment security. In the low group, neither depression nor anxiety showed meaningful correlation with paternal attachment security and maternal attachment security. (2) Married women's depression and anxiety had a main effect both in paternal attachment security and self-esteem level, and in maternal attachment security and self-esteem level. However they had no interactive effect in paternal attachment security and self-esteem level, and in maternal attachment security and self-esteem level.

• 한국음향학회지
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• 제30권7호
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• pp.390-395
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• 2011

본 논문은 각 방송사의 메인 뉴스인 평일 저녁뉴스의 여성 앵커 음성 분석을 통하여 공통적인 음성 요소와 각 방송국별 상대적인 음성 및 음향에는 어떠한 차이가 있는지 연구하였다. 전반적인 음성 특성을 알아보기 위해 6가지 요소를 분석한 결과, 각 방송국별 아나운서는 발화속도를 제외하면 모든 영역에서 뚜렷한 음성 및 발성 특징을 가지고 있었으며 음향시스템적인 차이도 발견 되었다. 주요 분석 요소는 기본 피치 외에 제1포만트와 피치비율에 따른 음색과 피치대역폭을 통한 정감도 요소, 피치대역폭내의 평균피치위치를 통한 문장 끝맺음 양상, 평균 발화속도, 주파수 대역별 에너지 분포를 통한 음향적인 음색 분석이다. 분석된 수치 및 결과는 국내 여성 앵커의 발성 특징의 기준으로 참고 및 활용될 수 있다.

• Genomics & Informatics
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• 제15권1호
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• pp.48-50
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• 2017

Tumor tissues from biopsies or surgery are major sources for the next generation sequencing (NGS) study, but these procedures are invasive and have limitation to overcome intratumor heterogeneity. Recent studies have shown that driver alterations in tumor tissues can be detected by liquid biopsy which is a less invasive technique capable of both capturing the tumor heterogeneity and overcoming the difficulty in tissue sampling. However, it is still unclear whether the driver alterations in liquid biopsy can be detected by targeted NGS and how those related to the tissue biopsy. In this study, we performed whole-exome sequencing for a breast cancer tissue and identified PTEN p.H259fs*7 frameshift mutation. In the plasma DNA (liquid biopsy) analysis by targeted NGS, the same variant initially identified in the tumor tissue was also detected with low variant allele frequency. This mutation was subsequently validated by digital polymerase chain reaction in liquid biopsy. Our result confirm that driver alterations identified in the tumor tissue were detected in liquid biopsy by targeted NGS as well, and suggest that a higher depth of sequencing coverage is needed for detection of genomic alterations in a liquid biopsy.