LPCD법에 의한 Tin박막의 전계 에미터 어레이 제작

조경제,이상윤,류정탁,김연보,이진호 大邱大學校 科學技術硏究所 2001 科學技術硏究 Vol.8 No.2

Using low pressure chemical vapor deposition (LPCVD), TiN thin films as field emitter array were fabricated. In this Work, a method was transfered to a substrate and the wet-etching of the silicon substrate instead of fabricated method of mold shape was using in generally but we have fabricated gated field emitter tips as using mold shape of the new method that using a side wall space structure. Following sequences such as LPCVD method of a gate electrod and gate oxide on a silicon substrate and defesited BPSG thin film as a high temperature was flowed by the mold shape of a sharpen, the TiN as a materials of emitter tips was deposited after was bounded by anodic bonding and the wet-etching of the silicon substrate by using KOII solution, the last have fabricated a gated field emitter arrays of a sharpen. These emitters were estmated by scanning electron microscopy and X-ray diffraction.

여성복 재킷의 치수 적합성에 관한 연구

서추연 동아대학교 생활과학연구소 2001 생활과학연구 논문집 Vol.9 No.-

This study is to compare and analyze the body size of Middle-aged women group (40∼49 years old) and Ms group (25∼29 years old) and to identify any difference between the two groups in terms of jacket patters of B88 size (old size specification 66). The followings are the results of this study. 1. Although the Ms group is younger than Middle-aged women group, their body size is almost same as Middle-aged women group as they are growing stout. About 75% level of Ms group showed almost same size as Middle-aged women group in most of body part only except in waist and shoulder area. 2. When it comes to overall body shape, the Ms group tends to be tall and broad-shouldered compared to the Middle-aged women group. The waist and abdomen size of Ms group are smaller than that of the Middle-aged women group, implying that the two parts tend to be changed a lot as getting old. 3. The basic size for women's apparel applied by brands tend to be different regardless of the standard measure, KS K 0051. For example, size specification for the B85 (old size specification 55) was unlike among brands, which increases consumers confusion. 4. When analyzing pattern size difference between the two group, with the same B88 size apparel, jacket for Ms group is short in back area, shallow in armhole depth small in bust girth and shoulder length compared to that of Middle-aged women group. Based on the results from this study, we can conclude that the basic measure for the ready-made apparel is different among current brands, which makes consumers have a trouble to choose a well-fitting apparel. Since there exists a significant difference in body shape and size between the Ms group and the Middle-aged women group, the size specifications for the two different groups need to be different according to their somato-type.

직접계측에 의한 성인남녀의 발형태비교분석 연구

서추연 東亞大學校 附設 生活科學硏究所 2002 생활과학연구 논문집 Vol.10 No.-

This study was to compare and analyze the foot size according to sex and age group and to classify and provide adults foot types. 219 adult men and 181 adult women were randomly sampled and measured by using a one dimension direct measurement method. 1. According to the results of T-test according to sex, there was a significant difference between men and women in all measurement items. In other words, men gained an advantage over women in all measurement items. Also, according to ANOVA, no significant difference existed among age groups for men in the degree of foot metamorphosis, while there was a significant difference among age groups for women. This results illustrated that womens foot was metamorphosed more than men as they grew older (getting lower in height, wider in breadth, and bigger in girth). 2. Five factors were extracted form the factor analysis of direct measurement for each sex group. For men, five factors were size, heel, external internal, and height factor. For women, five factors were size, instep, external, and heel factor. From these results, we could identify that the size and heel factors affect foot type for men, while the size and instep factors affect foot type for women. That was, for women, there was a significant difference in instep related items as they grew older, meaning that the instep factor affect womens foot type more than other factors. 3. Mens foot type was classified into 4 types ; totally big type(18.7%), totally small type(34.2%), middle girth and high instep type(24.7%) and middle girth and low instep type(22.4%). On the other hands, womens foot type was classified into 3 types ; totally small type(40.9%), wide ball breadth and high instep type(29.8%) and narrow ball breadth and middle instep type(29.3%). Therefore, this study explicates that the shoe size specification needs to be developed based on not only foot length and foot girth but ball breadth and instep height in order to design a functional and comfortable shoe.

SECKEL 증후군 환자의 증례보고

김추성,김재곤,백병주,양연미,정진우 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.1

Seckel 증후군은 상염색체 열성 유전질환으로 태내에서의 성장지연에 따른 출생 후의 소인증, 심한 소두증을 나타내며, 큰눈과 돌출된 코, 후퇴된 하악을 동반한 새 모양의 안모가 특징적이다. 다른 임상증상으로는 관절의 결함, 내반족, 드문드문 난 모발, 비뇨생식기의 이형성, 정신지체, 혈액학적 이상 등이 나타날 수 있다. Seckel 증후군의 구강 내 소견으로는 부정교합, 법랑질 저형성증, 일부 치아의 선천적 결손, 우상치 등이 나타날 수 있다. 본 증례는 Seckel 증후군을 보이는 두 증례에서 발육부전, 새 모양의 안모, 비뇨기과적 기형, 치아의 저형성과 부정교합 등 다양한 전신증상과 구강 내 증상들을 보였기에 이를 보고하는 바이다. Seckel syndrome is an autosomal recessive disorder characterized by intrauterine growth retardation and post-natally by dwarfism, severe microcephaly, bird-headed profile with receding chin, prominent nose, joint defects, clubfoot, sparse hair, malformation of genitourinary tract and rectum, mental retardation and hematological disorders. There is also a reduction in the number of blood cells. Dental anomalies of Seckel syndrome are crowded teeth with malocclusion, enamel hypoplasia, absence of some teeth and taurodontism. This report described the oral and maxillofacial manifestations of children associated with Seckel syndrome. Children with Seckel syndrome have several dental and skeletal irregularities. The purpose of this study was to report the dental and medical characteristics of the patient and review the literatures of Seckel syndrome.

3D scanner를 이용한 자동인체계측프로그램의 활용방안 : 노년여성을 중심으로 For Elderly Women

서추연 東亞大學校 附設 生活科學硏究所 2003 생활과학연구 논문집 Vol.11 No.-

This study was designed to examine the currently-used 3-D scanner and automatic body measuring program and to verify the usefulness of automatic body measuring program through the comparative analysis of results of direct body measuring with the automatic body measuring method using 3-D scanner for elderly women. 1. The analysis on the 3-D scanner and automatic body measuring program used in Korea showed that the 3D whole body scanner(WB4)(Cyberware Inc., USA) and Scan Worx VV2.6(Techmath Inc., Germany) had a comparatively high performance in terms of data gathering function and interchangeability between programs. 2. According to the results of comparing direct body measuring with automatic body measuring, no significant differences existed in all measurement items except back length. This result assures that the automatic body measuring is greatly reliable. In case of measuring the back length of elderly women using the automatic body measuring program, a scrupulous attention should be paid since the automatic body measuring program measures a vertical distance from back neck point to center back waist point, whileas the elderly women's back tends to be bent. 3. Comparing the Body measurement report for Elderly women(2002) with the results of this study, the measurement results in most of measurement items turned out to be similar, meaning that the results of this study can be used in body shape analysis as well as apparel production. 4. According to the somatotype analysis based on the KS K0055, the body type can be classified in the order of EN type(60.0%)-normal type, EA type(26.7%)-large hip type, and EH type(13.3%)-small hip type. According to the results of body type analysis, there was no significant differences in all measurement items except in thigh girth left, right item. 5. From the results of this study, the body measurement results acquired by using the automatic body measuring program turn out to be very useful. Especially for elderly women, however, the automatic body measuring program was disagreeable in such parts as back length, bust point width, side neck point to bust point length since the program was developed for general people not for the specific elderly women. Therefore, a special care needs to be paid when measuring those items for elderly women by using the program.

남녀 고등학생들의 성장에 따른 체격조사에 관한 연구

서추연 동아대학교 생활과학연구소 2000 생활과학연구 논문집 Vol.8 No.-

This study was to analyze high school students'(boys and girls) body growth rate during their high school period by looking into their three years' health record. This study bald attention to the body growth status especially when the growth rate of height turns to stagnate. Therefore, the results of this study can be used as a basic data for the apparel sizing system for high school students. The results of this study are as follows. 1. According to high school students' health records, there was a significant difference in all measurement items between boys and girls. The result shows that boy's growth rate was significantly bigger than that of girls on the average. 2. According to the height growth distribution chart, 63.9% of boys fall into the category of below 2cm growth between 16 years old and 17 years old. In case of girls, most of them(98.1%) shows below 2cm height growth during the same age period. Also, 90.4% of girls grow below 2cm during the period of 17 years old to 18 years old. 3, By comparing the average growth rate of each measurement item, it was found that there are significant differences in all measurement items for boys only except sitting height. It means that boys tend to grow steadily in terms of the height, weight and bust girth. In case of girls, the differences are apparent in the height and bust girth measurements. 4. After Spearman's correlation analysis, the order of correlation based on height was sitting height > weight > bust girth. It was found that the correlation between height item and girth item was low. 5. The fatty ratio of boys and girls were similar. Rohrer's index showed that there were many thin type in both boys and girls group due to the high correlation between height and weight. However, Vervaeck's index showed that normal type was the majority followed by thin type and fat type. 6. Based on the average of height and bust girth size, this study developed apparel sizing system for high school students as follows. M size for boys - height :170cm~175cm, bust girth :85cm~91cm. M size for girls - height :155cm~165cm, bust girth :79cm~85cm. The distribution of boys based on the proposed sizing system was M>S>L, while that of girls was M>L>S.

계측위치와 자유면 방향에 따른 지반진동 특성 연구

강추원,양해승,이수연 조선대학교 에너지.자원신기술연구소 1999 에너지·자원신기술연구소 논문지 Vol.21 No.2

The free face is an important part in the blasting design and plan. Most of study on the free face is referred to concern with fragmentation volume and determination of charge per delay. But the characteristic of vibration for the direction of the free face short of studies. This study shows the difference and characteristics of the vibration velocity for the measuring point and the direction of the free face. At the velocity of vibration, the back of the free face is over the front (Probably 1.20~1.29 times). A nomogram was made in relation to the maximum charge weight per delay on the basis of the 95% vibration blast equation and the velocity of vibration allowance set 5㎜/sec. Scaled distance was 29.71㎏/m^(1/2), 39.63㎏/m^(1/3) on the front of the free face and 34.03㎏/m^(1/2), 45.20m/㎏^(1/3) on the back of the free face.

단클론항체를 이용한 타액 내 Streptococcus mutans 수준의 측정

김추성,김재곤,양연미,백병주,이경열,김미아,임수민 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.2

Streptococcus mutans는 구강 내에 상존하는 치아우식증의 주요 원인균으로서 치면의 피막에 부착 후 glucan을 형성하여 세균의 군락을 이루며, 외부로부터 공급된 자당대사를 통하여 유기산을 생성함으로써 법랑질을 탈회시킨다. 치아우식 활성도의 평가를 위한 단클론항체를 이용한 방법은 진료실에서 빠른 시간 내에 간편하게 타액에 존재하는 Streptococcus mutans의 정량분석이 가능한 방법이다. 이 연구는 3세에서 6세 사이의 어린이 15명을 대상으로 자극성 타액을 채취하여 시판 중인 단클론항체를 이용한 Salivacheck Mutans, strip을 이용한 Dentocult-SM 그리고 MSB배지 배양법으로서 타액 내 Streptococcus mutans를 측정한 후 그 값을 우식경험치아수와 비교하여 상관관계를 알아보았다. Saliva-check Mutans를 이용한 방법은 Dentocult-SM과 MSB배지법과 통계학적으로 유의한 상관관계를 보였으나 (p<0.05), MSB배지법은 어린이의 우식경험치아수와 통계학적으로 유의한 결과를 나타내지 않았다 (p=0.34). Streptococcus mutans, one of the major causal agents of dental caries, is component of the dental plaque. It produces various organic acids such as lactic acid which is the end-product of glycolysis, and this leads to dental caries. A new system using species-specific monoclonal antibodies was developed to detect Streptococcus mutans in saliva. The system quickly detects salivary Streptococcus mutans in 30min and classifies the result into two levels. The purpose of this study was to investigate correlation between monoclonal antibody-based detecting system and selective medium-based detecting methods. Children's deft indices were also compared with Streptococcus mutans counts in MSB agar plate. Subjects consisted of 15 children in the age of 3 to 6 years. They were assigned to three groups: Group Ⅰ (deft index = 3), Group Ⅱ (deft index ≤ 3), Group Ⅲ (deft index ≥ 4). The results are as follows : 1. The rate of children with positive response was 13.3% and with negative response was 86.7% in the result of Saliva-check Mutans test kit. 2. There was a positive correlation between monoclonal antibody-based detecting system and selective medium-based detecting methods (p<0.05). 3. Streptococcus mutans counts in MSB agar plate were irrelevant to deft of children(p=0.34).

석고법을 이용한 상지 견갑골부위의 체표변화에 따른 여유량 설정에 관한 연구

김혜경,서추연,박순지 연세대학교 생활과학연구소 1999 生活科學論集 Vol.13 No.-

This study was performed to determine the ease amount of upper arm and scapula whose motion range and capacity were highest in the upper body. Subjects were 10 women aged 23 to 25 and suing gypsum method, the body surface change according to the motion of upper arm were obtained. The results obtained from this study were as follows ; 1. In the upper arm area, increasing the motion, sleeve width increased but height of sleeve cap and armhole girth dcreased. In the scapula area, shoulder length showed the highest contraction ratio of 36.2%. 2. It was the sleeve width area including anterior and posterior armpit points that indicated the highest change ratio, demanding ease amount. 3. Overapping of body suface draft and sleeve pattern, the appropriate height of sleeve cap were A.H./4+3∼3.5㎝ in M1∼M3 and A.H./5 in M4. 4. Analyzing the shape of scapula according to the motion of upper arm by means of Moire´ Photography increasing to the motion, moire´contour line moved to the shoulder point.

운동분석 시스템 연구

황준,이주연,이승민 서울여자대학교 자연과학연구소 1998 자연과학연구논문집 Vol.10 No.-

Abnormal motion control mechanism sometimes performs false detection of the direction, thus makes target point runs off the track, also shows abnormal speed control or power control. This paper explains development of the tools that make scientific measure and various analysis available. This paper also explams how we get the motion control ability data from the horizontal and vertical line drawn on the touch screen by the patient, analysis of deviation analysis, and Turn-Amplitude study. We built a complete system based on this algorithm.