• 전자공학회논문지
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• 제53권7호
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• pp.138-143
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• 2016

본 논문에서 설계 및 제작된 보안 검색 시스템은 물체 및 사람으로부터 방사된 에너지를 수신하여 이미지화 하는 시스템이다. 제안한 보안 검색 시스템은 다채널 수신을 위한 집적화된 어레이 안테나를 적용하였으며, 16개의 4단 저잡음 증폭기와 디텍터, CCD/IR 카메라와 반사판 그리고 밀리미터파 렌즈로 구성된다. 본 시스템은 공기 중의 열잡음 신호를 감지해야 하므로, 높은 수신감도와 넓은 대역폭이 요구된다. 시스템에 사용된 저잡음 증폭기 모듈의 이득특성은 82GHz~102GHz의 대역에서 65.8dB의 평균 이득특성을 가진다. 또한 증폭기 모듈로부터 입력된 열잡음 신호를 DC 전압 값으로 나타낼 수 있는 검출기를 제작하였다. 제작된 검출기는 제로-바이어스 쇼트키 다이오드를 사용하여 물체에서 방사된 밀리미터파 신호를 DC 출력 전압으로 변환하는 방사 분석 센서이다. 제작된 검출기의 특성은 0dBm 입력전력에서 350~400mV/mW, 검출 가능 입력 전력 범위는 -10~13dBm으로 우수한 성능을 보였다. 제작된 보안 검색 시스템은 은닉된 금속 재질의 물체뿐만 아니라, 플라스틱 등으로 이루어진 물체들도 검색이 가능하다.

• 복식
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• 제56권4호
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• pp.65-81
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• 2006

This is the study on the costumes of Parthian Period in Persia which had powerful influences on the Occidental and Western cultures in B.C 3 to A.D 3. With different types of Parthian costumes in each period, this study shows what types of costumes people used to wear and how they were co-related with its surrounding cultures. The ancient costumes of Korea had something to do with the elements of the Northern part at that time. To make an intensive study of Korean ancient costumes, these Parthian costumes which are known to those of northern nomadic tribes are studied to provide basis elements for study between the Korean styles and the exotic styles. The basic forms of the Parthian styles were jackets and trousers. They consisted of three kinds of jackets such as those to be adjusted In the front, tunics and coats. As for trousers, they were divided into three types such as those with horizontal pleats, round-side pleats and vertical pleats. 1) The jacket to be adjusted in the front was long enough to reach the hip and fit the body reasonably tight, and its neckline was shaped into V-type. It was a very popular style among the people of high and low classes. 2) The tunics had narrow sleeves. It was a one-piece pattern which reached the knees. It was settled with a belt on the waist. Its neckline was shaped into the round but its slit was not cleat. Its styles were into tight-fit and drapery ones. 3) The coats were almost similar to the jacket to be adjusted in the front with short length, but they were entirely long and open. They appeared later than the short jackets and the people of high class seemed to wear these styles. 4) 1'rousers with horizontal pleats - They had almost horizontal pleats on them, and they were a little tight. They seemed to be the early style in the Parthian period. 5) Trousers with round side-pleats - With saggy side pleats on them, these trousers had round pleats like a drapery style. This pattern was also considered Hellenistic elements shown in the Parthian costumes. The trousers consisted of the underdrawers and the leggings (called salwar or shalwar), which is thought to emphasize its functionality for its wearer to mount a horse with more ease. 6) Trousers with vertical pleats - With straight vertical pleats on them, these trousers had some volumes and bias decorations in the middle of them. These styles were thought to be worn by the ruling class of the Parthia from early to late period.

• 여성건강간호학회지
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• 제5권3호
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• pp.379-388
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• 1999

Breastfeeding is an excellent way of feeding infants and continues to be an important source of nutrition and antibodies for infants. Although breast-feeding is believed to be important, the rate of breastfeeding among Korean women is very low. One reason for the low breastfeeding rate is that the health professionals in the past have given little practical help couples to overcome difficulties encountered during breastfeeding. The promotion of breastfeeding has recently become a high priority among health professionals because of the undisputed physiological, psychological, social, economic, and nutritional benefits. Fathers have been found to influence the course of breastfeeding, but no one has conducted a systematic investigation into in and included fathers perspectives of breastfeeding in Korea. It is important to find strategies to solve the problems by assessing the knowledge, attitude and practice of breastfeeding with fathers as well as mothers. The purpose of this research is to find ways to promote primiparous(first child) couples's breastfeeding by assessing their general knowledge, attitude and practice of it. More specifically its purposes is to identify the relationship between knowledge, attitude, practice and the background factors of breastfeeding of primiparous couples in order to promote and support breastfeeding. The data will help health professionals to guide first-pregnancy couples to prepare and overcome any difficulties encountered during breastfeeding. Data were collected through a questionnaire which included both structured and open-ended questions. The questionnaire was composed referencing earlier literature, studies and surveys. This survey was made postpartum 2-3days after childbirth on 96 couples. The numbers of subjects for data analysis were selected 51 couples through pilot screening test. Data were coded and analyzed using the Statistical Package for Social Sciences : Cronbach's alpha coefficient, T-test, ANOVA, Stepwise pearson's correlation coefficient. The relations between the variables of breastfeeding were examined using a Pearson's correlation coefficient. This study showed that, the internal validity of the instrument was tested by Cronbach's alpha. The result was : mother knowledge 0.72, mother attitude 0.88, and father knowledge 0.70, father attitude 0.92, practice 0.76 and planning of breast feeding 0.95. The average age of mothers in the sample was 28.9 years old, and the average age of fathers in the sample was 31.3 years old. The other descriptive informations available included. the study also found that fathers were more important than doctors or nurses. However results of the study indicate that there were no differences between father and mother knowledge of breastfeeding(t=-0.39, p=0.698), and father attitude was statistically significant higher than mother attitude of breastfeeding (t=2.24, p=0.030). In analysis, the variable 'practice' with breastfeeding was the relationship with mother knowledge (p=0.031) and mother attitude(p=0.015). In this study, the correlation between one couple' knowledge and attitude was not significant. Primiparous couples surveyed in the postpartum period regarding knowledge, attitude and practice about breastfeeding might be affected by recall bias, the effects of the euphoria of the first 24-48 hours postpartum, but these variables were not examined. This study results add to the body of knowledge about nursing care for breastfeeding mothers and fathers. This indicates that a need for education about breastfeeding and, that fathers be included in it as well as mothers.

• Asian Pacific Journal of Cancer Prevention
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• 제15권16호
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• pp.6811-6817
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• 2014

Background: Breast cancer risk prediction models are widely used in clinical practice. They should be useful in identifying high risk women for screening in limited-resource countries. However, previous models showed poor performance in derived and validated settings. Therefore, we aimed to develop and validate a breast cancer risk prediction model for Thai women. Materials and Methods: This cross-sectional study consisted of derived and validation phases. Data collected at Ramathibodi and other two hospitals were used for deriving and externally validating models, respectively. Multiple logistic regression was applied to construct the model. Calibration and discrimination performances were assessed using the observed/expected ratio and concordance statistic (C-statistic), respectively. A bootstrap with 200 repetitions was applied for internal validation. Results: Age, menopausal status, body mass index, and use of oral contraceptives were significantly associated with breast cancer and were included in the model. Observed/expected ratio and C-statistic were 1.00 (95% CI: 0.82, 1.21) and 0.651 (95% CI: 0.595, 0.707), respectively. Internal validation showed good performance with a bias of 0.010 (95% CI: 0.002, 0.018) and C-statistic of 0.646(95% CI: 0.642, 0.650). The observed/expected ratio and C-statistic from external validation were 0.97 (95% CI: 0.68, 1.35) and 0.609 (95% CI: 0.511, 0.706), respectively. Risk scores were created and was stratified as low (0-0.86), low-intermediate (0.87-1.14), intermediate-high (1.15-1.52), and high-risk (1.53-3.40) groups. Conclusions: A Thai breast cancer risk prediction model was created with good calibration and fair discrimination performance. Risk stratification should aid to prioritize high risk women to receive an organized breast cancer screening program in Thailand and other limited-resource countries.

• 지구물리와물리탐사
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• 제17권1호
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• pp.28-33
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• 2014

최근 제주도 서부 중산간(해발고도 400 ~ 900 m) 지역에서 획득된 자기지전류(MT) 탐사자료와 제주도 중산간 전역에서 획득되었던 기존 MT 탐사 자료의 1차원 역산을 통하여 서귀포층과 U층으로 대표되는 퇴적층에 해당하는 저비 저항층의 분포형태를 살펴보았다. 저비저항층의 상부경계는 제주도 표고와 매우 높은 양의 상관관계를 가지고 있으며 하부경계는 표고와 음의 상관관계를 가진다. 즉, 저비저항층은 제주도 중앙부에서 두꺼운 렌즈 형태를 하고 있으며 그 하부의 기반암은 중앙부에서 오목한 형태일 가능성이 높다. 이러한 표고와의 상관성을 고려하는 크리깅을 수행하여 제주도의 지전기 구조 모델을 제시하였다. 하지만 한라산의 화도를 따라 3차원 형태의 저비저항 이상체가 존재할 가능성과 시추공 자료와의 차이를 발생시키는 원인을 규명하기 위하여 3차원 모델링과 다른 지구물리탐사나 물리검층 자료와의 복합해석이 요구된다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권12호
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• pp.6299-6303
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• 2012

Insulin-like growth factor-binding protein-3 (IGFBP3) has been identified as a putative tumor suppressor with multifunctional roles in the IGF axis. Recently, there have been a growing body of studies investigating the relation between the IGFBP3 A-202C polymorphism, circulating IGFBP3 and prostate cancer risk, but their outcomes varied leading to controversy. Hence, it is necessary to perform a meta-analysis covering all eligible studies to shed a light on the association of IGFBP3 A-202C and cancer risk. Finally, we included a total of 11 relevant articles between 2003 and 2010 covering 14 case-control studies including 9,238 cases and 8,741 controls for our analysis. Our results showed that A-202C was a marginal risk factor of prostate cancer (allele contrast: OR=1.08, 95% CI :1.01-1.16; dominant model: OR=1.11, 95% CI :1.01-1.22; heterozygote codominant model: OR=1.11, 95% CI :1.03-1.18; homozygote contrast: OR=1.19, 95% CI :1.03-1.37). Stratification analysis revealed that sample size and control source were two major heterogeneous meta-factors especially in the recessive model (source: Population-based control group :p=0.30,I2=16.7%, Hospital-based control group: p=0.20, I2=30.3%; sample size: Small: p=0.22,I2= 32.8%, Medium: p=0.09,I2=48%, Large p=0.60,I2=0.0%); However, contrary to previous findings, no significance was found in racial subgroups. No significant publication bias was found in our analysis. Considering the robustness of the results and the discrepancy among some studies, there might be some unsolved confounding factors, and further more critical large studies are needed for confirmation.

• 천문학회보
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• 제35권1호
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• pp.82-82
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• 2010

We measure the topology of the galaxy distribution using the Seventh Data Release of the Sloan Digital Sky Survey (SDSS DR7), examining the dependence of galaxy clustering topology on galaxy properties. The observational results are used to test galaxy formation models. A volume-limited sample defined by Mr<-20.19 enables us to measure the genus curve with amplitude of G=378 at 6h-1Mpc smoothing scale, with 4.8% uncertainty including all systematics and cosmic variance. The clustering topology over the smoothing length interval from 6 to 10h-1Mpc reveals a mild scale-dependence for the shift and void abundance (A_V) parameters of the genus curve. We find strong bias in the topology of galaxy clustering with respect to the predicted topology of the matter distribution, which is also scale-dependent. The luminosity dependence of galaxy clustering topology discovered by Park et al. (2005) is confirmed: the distribution of relatively brighter galaxies shows a greater prevalence of isolated clusters and more percolated voids. We find that galaxy clustering topology depends also on morphology and color. Even though early (late)-type galaxies show topology similar to that of red (blue) galaxies, the morphology dependence of topology is not identical to the color dependence. In particular, the void abundance parameter A_V depends on morphology more strongly than on color. We test five galaxy assignment schemes applied to cosmological N-body simulations to generate mock galaxies: the Halo-Galaxy one-to-one Correspondence (HGC) model, the Halo Occupation Distribution (HOD) model, and three implementations of Semi-Analytic Models (SAMs). None of the models reproduces all aspects of the observed clustering topology; the deviations vary from one model to another but include statistically significant discrepancies in the abundance of isolated voids or isolated clusters and the amplitude and overall shift of the genus curve. SAM predictions of the topology color-dependence are usually correct in sign but incorrect in magnitude.

• 한국언론정보학보
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• 제66권
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• pp.133-158
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• 2014

이 연구는 중앙일보, 조선일보, 한겨레, 경향신문 등 국내 주요 일간지들이 광고주 기업의 뉴스를 얼마나, 어떤 관점에서, 어떻게 보도하는지를 계량적으로 살펴보았다. 특히 이 연구는 광고주 순위와 기사빈도 간에 관계가 있는지, 광고주 관련 보도가 긍정적으로 다뤄지는지, 이런 경향이 신문의 기업관과 이념성향에 따라 차이가 있는지에 대해 내용분석을 실시했다. 또한 같은 방법으로 '삼성그룹 X파일 사건'이라는 특정사건 기간 중 4개 신문의 삼성관련 보도태도를 분석했다. 분석결과는 다음과 같다. 먼저, 전반적으로 광고수주액이 많은 기업일수록 관련기사 수가 많았다. 또한 광고주 관련 기사는 해당기업에 대해 부정적이기보다는 긍정적인 경우가 많았다. 특히, 광고주 관련 기사의 우호적인 성향(친기업성향)은 기사의 제목보다는 본문의 논조에서, 본문 논조보다는 보도 프레임에서 더욱 두드러지게 나타나는 구조적인 특징을 보였다. 이러한 보도태도는 기업에 우호적인 신문을 외부로 표방하는 중앙일보는 물론, 기업에 비교적 중립적인 입장을 취하는 것으로 알려진 조선일보, 그리고 기업에 비판적 태도를 보이는 한겨레, 경향신문 등 진보신문들도 비슷한 성향을 보였다. 광고주에 우호적인 4개 신문의 이런 보도성향은 삼성X파일 사건기간 중에서도 유사하게 나타났다.

• 대한치과기공학회지
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• 제18권1호
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• pp.95-115
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• 1996

The esthetic factor for the esthetic prosthesis were studied on 300 persons. The praaticipants were 150 students registered under the Deparment of Dental Laboratoy Technology, Jisan Junior College at the present day of June, 1995 and their mothers. The results were as follows; 1. The number of persons with 28 teeth in their oralcatity was highest(P<0.01). They complained that they have only 28 teeth bacaues of the loss(deficiency) fo teeth due to their impacted teeth and dental caries. 2. The presons with feelings of dissatisfaction were large in number(P<0.01). They were dissatisfied with an abnormal tooth form(33.5%), tooth position(31.7%), tooth color(31.1%), and tooth size(3.7%) in order(P<0.01). 3. In their facial form, the most numerous were men with square form and women with ovoid form(P<0.01). Among the whloe number fo facial forms it appeared to decresae in the order of ovoied(41.8%), square(32.7%), square+tapered(20.5%), and tapered form(5%)(P<0.01). In a profile form, the most numerous were men with A form and women with B. Among the whole participants the most numerous were persons with B form and persons with A and C form were next in oder of numbers(P<0.01). 4. In discoloration of teeth, the most numerous were persons who have no discoloration. 5. In the esthetic recovery of anterior prosthesis the color matching of proximal teeth was not correct, but the outline of proximal teeth was to be reproduced correctly. 6. In the diastema of teeth, the number of persons who have no diastema was higher than that of persons who have a disatema(P<0.01) Among the persons who have diastema the most numerous were persons who have a diastema, and next were 2, 4, 3 and 5 diastemas in order. 7. In a meeting point of the midline of the body and the tooth the number of person hanving a meeting point was higher than that of persons who did not fit each other(P<0.01). The bias direction of midline teeth appeared to be affected by chewing direction, prosthesis location, and posterior location. 8. The length and width of teeth in the tooth size were suitable(P<0.01). The number of persons who have central teeth longer than lateral teeth was high(P<0.0). 9. In the results of smile analysis, the line form connected with incisal edge of upper canine were parallel(P<0.01). When smile the location fo upper lips should be in accord with the central area of teeth(P<0.01) and lower lip should be atteched to the edge of anterior teeth in order to be esthetic. 10. Among the number of upper teeth we can see the most numerous were 8 teeth and next were 10, 6 and 12 in order.

• 대한한방체열의학회지
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• 제5권1호
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• pp.69-77
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• 2006

Purpose : There are many patients with cold hypersensitivity who want oriental medicine treatment. But there has been no study of acupucture treatment effect on patients. So we examined effects of acupuncture treatment at different acupuncture points and compared results of 1st cold stress test and 2nd cold stress test. Method : 8 patients with hand cold hypersensitivity applied for this study. To rule out an bias, we excluded the patients with skin diseases, spinal nerve disease of cervial spine, external wounds. We measured body temperature with D.I.T.I. We performed cold stress test(CST) by 6 thermographic observation using D.I.T.I ; the 1st was taken after 15 minutes-resting, the 2nd was immediately taken after 1 minute soak in $20^{\circ}C$ water, the 3rd was taken at 10 minutes after the soak, and after a week, the 4th was taken after 15 minutes resting, the 5th was immediately taken after 1 minute soak in $20^{\circ}C$ water, the 6th was taken after 10 minutes with acupunture treatment. There were two groups of patients. First group was acupuncture that performed acupuncture therapy on distal points. Second group was acupuncture that performed acupuncture therapy on proximal points. We compared first CST and second CST recovery rate result. Results : The recovery rate at distal points acupuncture therapy was higher than before of that. but not significantly different. The recovery rate at proximal points acupuncture therapy was significantly higher than before of that. The recovery rate of both the back, the palms, all fingers of after proximal acupuncture therapy was significantly higher than before of that. Conclusions : Acupuncture could be effective therapy method on cold hypersensitivity, especially using proximal acupuncture points could be good at cold hypersensitivity patients. This was pilot study of very small samples, results had limitations. For further results more examine would be needed.