확장성과 이식성을 고려한 그래픽스 저작도구의 설계

김성희,이희웅(Sung-hee Kim),Hee-woong Lee 한국정보과학회 1998 정보과학회 컴퓨팅의 실제 논문지 Vol.4 No.4

컴퓨터 그래픽스 프로그램은 그래픽 객체(graphical object)의 관리, 디스플레이(display), 그리고 객체들에 발생하는 이벤트(event)등을 처리해야 한다. 또한 다양한 그래픽스 라이브러리와 윈도우 시스템의 개발로 프로그램의 이식성(portability)이 한층 강조되고 있다. 이와 같은 기능들은 상당히 복잡할 뿐 아니라 많은 그래픽스 응용 프로그램에 공통되는 내용들이기 때문에, 이들을 하나의 툴로 개발하여 많은 응용 프로그램 개발자가 공통적으로 사용하고자 하는 시도가 계속되어져 왔다. 본 논문에서는 사용하기 편리하고, 다른 시스템으로의 이식이 용이하며, 객체 지향 기법으로 설계되었기 때문에 확장이 용이한 그래픽스 저작도구의 설계 및 구현에 대해 설명한다. Computer graphics applications require managing and displaying objects as well as handling events. There are a number of graphics libraries and window systems that can be used for these purposes. These modules are general in nature and quite complex, so it would be best if we provide these features as a toolkit or a framework to the general purpose graphics programmers. This paper presents a toolkit that is easy to use, portable, and well suited for the usual modeling and rendering tasks. The object-oriented programming techniques used in designing the toolkit make it flexible and extensible.

휘발성유기화합물의 기상 흡착과 탈착과 탈착 특성

김성희,김영철,박남국,오석인 ( Sung Hee Kim,Nam Cook Park,Young Chul Kim,Suk In Oh ) 한국공업화학회 1998 응용화학 Vol.2 No.1

The presence of Volatile organic compounds(VOCs) in indoor and outdoor air is of concern because these gases promote Photochemical formation of ozone and other contaiminants and may have adverse effects on human health. Generally adsorption is used for removal of VOCs because of recovery and energy saving. Especially active carbon fiber(ACF) provide much faster adsorption kinetics compared with the granular adsorbents conventionally used because of their small diffusion distance in fiber. Thus, the application of ACF may lead to smaller adsorption units and effective recovery of valuable components.

Cone-beam computed tomography를 이용한 미맹출 영구치의 계측

김성희,김영종,김신,정태성,Kim, Seong-Hee,Kim, Young-Jong,Kim, Shin,Jeong, Tae-Sung 대한소아치과학회 2012 대한소아치과학회지 Vol.39 No.2

The purpose of this study was to evaluate the accuracy and reproducibility of measuring the size of unerupted permanent tooth via cone beam computed tomography(CBCT). Ten children were scanned with dental CBCT, and 3-dimensional reconstruction of the dentitions were generated CBCT. Mesio-distal dimension and buccolingual dimension of the teeth were made directly on the model with a high-precision digitalcaliper and on the CBCT by using three-dimensional dental imaging software. Reliability and accuracy were assessed by using intraclass correlation and paired $t$-tests. ($p$ <0.05) The results were as follows : 1. Intraclass correlations were above 0.9 for Both the CBCT and the model measurements, showinghigh reliability. 2. Although there were high correlation values(r=0.91) between CBCT and model messurement methods, comparisons between the CBCT and model messurement methods showed a statistically significant difference($p$ <0.05). 3. The CBCT measurements tended to slightly underestimate by 0.2 mm. But, the systematic difference of CBCT measurements were clinically acceptable Therefore, CBCT measurement method can be used to measure the size of unerupted teeth in a sufficiently accurate way.

기록물 생산자 전거제어를 통한 맥락정보의 구축 및 교환 - ISAAR(CPF) 2판과 EAC를 중심으로 -

김성희,Kim, Sung-Hee 한국비블리아학회 2005 한국비블리아학회지 Vol.16 No.2

It is essential to describe information on a person, family or corporate body that is responsible for creation of archives in providing archival contextual information. This paper discusses the establishment of contextual information based on the authority control of creators of archives by using international standards such as ISAAR (CPF) : International Standard Archival Authority Record for Corporate Bodies, Persons, and Families, Second edition and EAC(Encoded Archival Context). It introduces the LEAF(Linking and Exploring Authority Files) Project in Europe, which presents the model for exchanging and sharing of authority data between libraries, archives and museums by employing EAC. The concluding remarks stress limitations associated with establishing and exchanging of authority files and requirements for the establishment of archival contextual information nationally.

골내치주낭에서 탈회냉동건조골 동종이식시 이식효과에 대한 임상적 연구

김성희,김종관,채중규,조규성,Kim, Sung-Hee,Kim, Chong-Kwan,Chai, Jung-Kiu,Cho, Kyoo-Sung 대한치주과학회 1994 Journal of Periodontal & Implant Science Vol.24 No.3

The ultimate goal of periodontal therapy is promoting the regeneration of lost periodontal tissue. The purpose of this study is to evaluate the effect of treatment using decalcified freeze dried bone allograft as a bone graft material. 47 intrabony defects from 27 patients with clinical diagnosis of chronic periodontitis were selected among those 24 defects were treated via flap operation only and designated as the control group, the other 23 defects were treated with decalcified freeze dired bone allografting via flap operation and designated as the experimental group. Clinical parameters including probing depth, loss of attachment, probing bone level and gingival recession have been recorded at 6th months, and the significance of the changes has been analyzed. The results are as follows : 1. Probing depths were reduced significantly in both control group($2.75{\pm}0.99mm$) and experimental group($3.69{\pm}0.97mm$) postoperatively(p<0.01). Experimental group showed significantly higher decrease compared to the control group(p]0.01). 2. Loss of attachment showed statistically significant decrease in both control group($1.77{\pm}1.08mm$) and experimental group postoperatively($2.70{\pm}1.55mm$). Experimental group showed significantly higher decrease compared to the control group(p]0.05). 3. Probing bone levels were reduced with statistically significance in both control group($1.08{\pm}0.97mm$) and experimental group($4.00{\pm}1.41mm$) postoperatively(p<0.01). Experimental group showed significantly higher decrease compared to the control group(p<0.01). 4. Gingival recession showed statistically significant increase in the control group($1.21{\pm}0.72mm$) and experimental group($1.00{\pm}1.09mm$) postoperatively(p<0.01). There was no statistical significance between the control group and the experimental group. On the basis of these results, treatment using allogenic decalcified freeze dried bone is effective in reducing probing depth, loss of attachment and probing bone level. Therefore allogenic decalcified freeze dried bone is an effective bone graft material in periodontal regeneration.

테트라싸이크린 함유 calcium sulfate의 서방형 국소 약물 송달 효과에 대한 연구

김성희,최성호,조규성,채중규,박광균,김종관,Kim, Sung-Hee,Choi, Seong-Ho,Cho, Kyoo-Sung,Chai, Jung-Kiu,Park, Kwang-Kyun,Kim, Chong-Kwan 대한치주과학회 1997 Journal of Periodontal & Implant Science Vol.27 No.4

Periodontal disease is a bacterially causal by disease, To remove plaque and bacteria, it has been necessary to prescribe chemical drug to patient to subjugate therapeutic unvalue by mechanical scaling. As a patient on a high dosage of the antibiotics to maintain the effective concentration may produce unfavorable side effects, this decase demands the Slow-release local drug delivery system. The object of the experiment is to study on the slow-release local drug delivery effects of calcium sulfate compounded with tetracycline that mainly used in periodontal disease. Experimental groups were divided into four classes as follow: Group 1 10% tetracycline compounded modified calcium sulfate paste. Group 2 : compounded and hardened 10% tetracycline and calcium sulfate. Group 3 : compounded 10% tetracycline and calcium sulfate, used Just before hardened. Group 4 : tetracycline-ethylene vinyl acetate fiber. In the four groups, release concentration, it's durability and the period of absorption by times are observed and concluded as follow: 1. An effective concentration($4{\mu}g/ml$) remained until 5 weeks in group 1, 9 days in group 2, 7 days in group 3, 15 days in group 4. 2. It was fully fused at 11.8 days average in group 2 and 14.8 days average in group 3. . There were no statistically significant results in tetracycline concentration until a week in group 2 and 3(p<0.05) These results suggest that tetracycline loaded calcium sulfate release sufficient tetracycline and fused in $11{\sim}14$ days, so calcium sulfate is useful carrier as slow release local drug delivery system.

방사선에 의한 Apoptosis에서 Fas의 역할

김성희,성진실,성제경,Kim, Sung-Hee,Seong, Jin-Sil,Seong, Je-Kyung 대한방사선종양학회 2002 대한방사선종양학회지 Vol.20 No.3

Purpose : It has been recognized that interaction of the Fas : Fas ligand plays an important role in radiation-induced apoptosis. The purpose of this study was to investigate the role of Fas mutation in radiation-induced apoptosis in vivo. Materials and Method : Mice with mutations in Fas, $MRL/Mpj-Fas^{Ipr}$, and its normal control, MRL/Mpj, were used in this study. Eight-week old male mice were given whole body radiation. After irradiation, the mice were killed and their spleens were collected at different time intervals. Tissue samples were stained with hematoxylin-eosin and the numbers of apoptotic cells were scored. Regulating molecules of apoptosis including p53, Bcl-2, Bax, $Bcl-X_L,\;and\;Bcl-X_S$ were also analyzed by Western blotting. Results : At 25 Gy irradiation, the level of apoptosis reached the peak value at 8 hr after radiation and recovered to the normal value at 24 hr after radiation in MRL/Mpj mice. In contrast, the peak apoptosis level appeared at 4 hr after radiation in $MRL/Mpj-Fas^{Ipr}$. At 8 hr after radiation, the levels of apoptosis in MRL/Mpj mice and $MRL/Mpj-Fas^{Ipr}$ mice were $52.3{\pm}7.8\%\;and\;8.0{\pm}8.6\%$, respectively (p<0.05). The expression of apoptosis regulating molecules, p53, $Bcl-X_L\;and\;Bcl-X_S$, increased in MRL/Mpj mice in response to radiation; p53 with a peak level of 3-fold at 8 h, $Bcl-X_L$ with a peak level of 3.3-fold at 12 h, and $Bcl-X_S$ with a peak level of 3-fold at 12 h after 25 Gy radiation. Bcl-2 and Bax did not show significant change in MRL/Mpj mice. However in $MRL/Mpj-Fas^{Ipr}$ mice, the expression levels of p53, Bcl-2, Bax, $BCl-X_L\;and\;BCl-X_S$ showed no significant change. Conclusion : The level of radiation-induced apoptosis was lower in Fas mutated mice, Ipr, than in control mice. This seemed to be related to the lack of radiation-induced p53 activation in the Ipr mice. This result suggests that Fas plays an important role in radiation-induced apoptosis in vivo.

소비자 의복관여와 소재평가기준에 관한 연구

김성희,김경애 ( Sung Hee Kim,Kyung Ae Kim ) 대한가정학회 1996 Human Ecology Research(HER) Vol.34 No.5

한국인의 정상적인 노화에 의한 성별 연령별 순음청력에 의한 기준청력

김성희,신종헌,여창기,한영경,이중기,장순석,Kim Sung Hee,Shin Jong Heon,Yeo Chang Ki,Han Young Kyung,Lee Jung Ki,Jarng Soon Suck 한국음향학회 2005 한국음향학회지 Vol.24 No.6

Declining auditory performance with advanced age is a well known and common problem that is becoming more Prevalent due to the increasing number of elderly people in our society. We introduce a novel ARCISM (Audiogram Result Computer Input. Save & Management software) data management program which enables the assessment of the risk of past history of hearing impairment on the basis of known risk factors. This study investigates the reference levels of pure tone hearing threshold of normal aging in Korean and the difference between fenders. The subjects were carefully selected by questionnaire and absence of any history of otologic infection, noise exposure. and ototoxic drug among 1603 subjects. who visited Health Promotion Center in Daegu Fatima Hospital for one year. The results show (1) hearing sensitivity declines with age. (2) higher frequency shows steeper slope of hearing declines than lower frequency. and (3) there were more hearing loss at 4 and 8 kHz in men than in women. Due to the ARCISM program. it was possible to manage huge data of hearing results and to obtain the reference level of a9e-related hearing declines. Furthermore, we expect that the results of this study can be the fundamental data for hearing rehabilitation for the elderly and for developing suitable hearing aids for Korean.

퇴행성 대동맥판 협착증의 중증도 평가: 증례보고 3례

김성희,Kim, Sung-Hee 대한임상검사과학회 2019 대한임상검사과학회지(KJCLS) Vol.51 No.2

The incidence of degenerative valve disease also increasing with the increasing life expectancy of the elderly population. Rheumatic valve disease is decreasing gradually and the incidence of calcified degenerative aortic stenosis (AS) is growing. Echocardiography is a very important tool for evaluating the prognosis and treatment method as well as the time of operation and diagnosis of heart valve disease. When evaluating valvular heart disease, 2-dimensional echocardiography, which observes all heart valves in detail, should take precedence. Understanding the clinical findings of degenerative valve disease and performing precise echocardiography are extremely important. In addition, an assessment of the severity of aortic stenosis is necessary to determine the surgical indications. An assessment of the severity by echocardiography was explained with three cases of degenerative aortic stenosis. To perform echocardiography accurately, it is necessary to understand degenerative valve disease and its clinical findings accurately.