한국인에서 일광 노출의 유해성에 대한 인지도와 일광 차단제의 이용 행태에 대한 연구

김상태,김기호,오선진,이승철,강세훈,윤재일,김진준,박석범,김홍용 대한피부과학회 1999 大韓皮膚科學會誌 Vol.37 No.6

Background: Although deleterious effects of sunlight have been increased recently, the surveillance of the attitudes toward sun-exposure and the behavioral aspect of using sunscreens in Koreans has hot been carried out. Objective: Our purpose was to evaluate the attitude toward the harmfulness of sun-exposure and behaviors of using sunscreens in Korea. Method: Five hundred and fifty-two subjects were surveyed to assess the attitude toward sun-exposure, as well as the subjects knowledge about, and the use of sunscreens. Underlying data including demographic data, skin colors, skin types, occupation, and sun-exposure, were obtained. Results: Fifty-four percent of subjects believed that sun-exposure is bad for their skins, but, on the contrary, 12.5% believed it to be beneficial. Fifty-two percent of subjects used sunscreens. Almost all subjects(93.8%) knew why to use sunscreens but 62.7% of subjects did not know the meaning of sun protective factors(SPF). Women, indoor workers, subjects less than 40 years old, with less sun-exposed, fair colored skin, or with skin type I, II, III tended to know the deleterious effects of sunlight and the meaning of SPF and used more sunscreen. Conclusion: High risk population-men, outdoor workers, subjects oider than 40 years old, with more sun-exposed, dark colored skin, or skin type VI, V could be targeted with campaigns that promote attitudinal and behavioral changes.

난연성 FREP로 휨보강된 철근콘크리트 보의 구조성능 평가

강기연,최기선,한상환,유영찬 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

The purpose of this study is to evaluate the flexural strengthening performance of the iFREP(incombustible Fiber Reinforced Epoxy Panel) to the reinforced concrete flexural members. The tensile strength of iFREP including mechanical and physical properties of the epoxy resin for injection were tested preliminary to investigate the material properties of iFREP constitutions. Also the bond characteristics of iFREP to the concrete were estimated to acquire the basic design data for strengthening through various bonding tests. Finally full-scale RC beams strengthened by iFREP were tested monotonically upto failure to evaluate the strengthening effects of iFREP to the RC flextural members. The main variable of the four test specimens was the thickness of iFREP. From the test results, it was found that the failure mode of RC beams strengthened by iFREP was governed by the fracture of iFREP indicating the sufficient bond strength of iFREP to the concrete. Also flexural strengthening effects of iFREP to the RC beams is proportional to the thickness of iFREP.

노천 발파패턴에 따른 발파상수의 정량적 평가

강성후,박선준 東新大學校 工業技術硏究所 2002 工業技術硏究 Vol.8 No.-

The actual ground vibrations due to prism cut and trench cut blasting at power plant field have been measured, and the data were analyzed using reliability index(β) to the blast constants and attenuation coefficients. In this study, blast vibrations were suggested with wave component parts of ground vibration to the blast patterns, and were suggested with the division of ultimate limit state(,8 =0), serviceability limit state(β=1.28) and safety state(β =3) respectively. The reliability index 0 means 50% data line obtained by the least squares best-fit line. The reliability index 1.28 and 3 represent bounds below 90%, and 99.9% of the data, respectively. The vibration constants K(particle velocity) for prism cut were evaluated to 333, 619, 1419, respectively and the attenuation coefficients of vibrations was -1.94. From this study, inference and analysis methods of vibration equations using reliability theory were established.

자기조절 학습 능력의 향상을 위한 학습 시스템 설계 및 구현

강선경,이호근,정성태 원광대학교 공업기술개발연구소 2003 工業技術開發硏究誌 Vol.23 No.-

The knowledge and information quantity rapidity find the contents where the many students by the one sided delivery of the teacher are many from information anger society which is increasing back, it is impossible. Until now Professor traditional of most - the teacher learning slept from studying situation and the analysis regarding was insufficient. The case which it does is many more negative learning volition positive learning activity than. It will reach from the dissertation which it sees and petty it executes before entering into hazard learning own learning which more effectively it is a quality of Self-regulation learning, the possibility petty compared to of doing the control probably and a motive control well in order to be, executes the hazard prosecuting attorney whom it assists the system which it composed. To evaluate the control ability and petty compared to recovers the possibility of learning in order to be, assisting will do objective.

노예제 담론과 여성의 글쓰기

강옥선,김봉광,이상우,홍옥숙 새한영어영문학회 2006 새한영어영문학 Vol.48 No.4

This study aims at examining the anti-slavery discourse written by the early 19th-century women writers. Based on their own moral sensibility and Christian belief of non-Anglican Church, these early romantic women writers strongly advocated abolitionism and were involved in anti- slavery activities, such as writing pamphlets and joining anti-slavery groups. However, their writings have been ignored for a long time, overpowered by 'major' male writers of Romanticism. Thus this study tries to shed light on these women writers and discuss their importance in the literary history. The study will discuss why the anti-slavery discourse was an important issue among the women writers. In the late 18th century, women were beginning to recognize their inferior social status and naturally identified themselves with the slaves. The French Revolution which emphasized equality of humankind had strong impact on them. Mary Wollstonecraft and Helen Maria Williams experienced the Revolution in France and put their experiences into the writing advocating the rights of women and the socially weak people. Based on their religious belief, Hannah More and Ann Yearsley wrote poems attacking the slave trade. Their naive attitude toward Christianity, which tacitly approved slavery in spite of its belief in the equality of human beings, may be problematic. Their poems are significant, however, as an official beginning of antislavery discourse by women. Women poets' attack upon the slavery and advocation of the oppressed is further developed by poets such as Anna Barbauld, Helen Maria Williams and Amelia Opie. On the other hand, Harriet Martineau wrote an anti-slavery novel "Demerara." As a popular pamphlet writer of the time, Martineau was influential in the antislavery movement of the United States. "Demerara," written as a part of John Stuart Mill's Illustrations of Political Economy contains a scientific and systematic criticism of slavery. "Demerara"puts the colonized West Indies into the foreground of the novel and enlists the reasons the slavery should be abolished. In addition to the touching story of the hardships of a slave family, she analyzes the disadvantages of slavery in terms of political economy. Romantic women writers' anti-slavery writing ranging from poems to novel contains a distinctive voice different from that of male writers. Recognizing their social status inferior to men's, these women writers sought to correct the discrimination against them. Their concern about the socially oppressed people can be understood in this context. Though silenced as a radical voice and ignored as minor writers for a long time, women writers of the 19th century should be reilluminated from the postcolonial viewpoint. They provide valuable assets to Romanticism as a newly found voice resisting the social ills and upholding the silent others in society.

특징 거리와 방향성을 이용한 필기체 수식 인식

강경완,이우선,정성환 국립7개대학공동논문집간행위원회 2004 공업기술연구 Vol.4 No.-

We propose the recognition method of hand written numerical formula using the feature distance and the directionality. The proposed method uses the real time concept that is characteristic of on-line hand written character recognition. First, it receives the pixel coordinates of a numerical formula from a tablet. Secondly, it achieves the separation process on the inputed formula. Thirdly, it supplies sequentially one completed mathematical formula unconcerned with notes order. Finally, using the pattern conformity of feature distance and directionality, we recognize a completed mathematical formula. In the experiment using 100 mathematical formulas, the proposed method showed the recognition rate of about 98%

휨부재의 인장철근비 변화에 따른 섬유보강에폭시 판넬의 보강효과평가

강성후,박선준,송영국 東新大學校 工業技術硏究所 2003 工業技術硏究 Vol.9 No.-

FREP is a stiffener that is increasingly used in construction fields today. Concerning it, however, the mechanical characteristics of structures reinforced with it, reinforcement design methods, etc. have not been systematically established yet. The present study evaluated the mechanical characteristics of FREP such as fracture behavior, bending stress enhancement, etc. through a bending test using as variables steel ratio of RC beams reinforced with FREP and the thickness of FREP reinforcement. The RC Beams used in the test showed two types of fraction, which were bending tension fraction and edge stripping fracture, and when the ratio of steel ratio (ρ) to FREP ratio (ρ_(F)) is larger than 1.8, it showed edge stripping fracture. Under same reinforcement condition, if steel ratio is relatively low, reinforcement effect appeared to be high. In addition, if reinforcement thickness increases, the flexural rigidity rises and, as a result, the maximum load also increases, but an excessive increase of reinforcement thickness makes stress concentrate on the reinforced end and cause unexpected brittle fracture (edge stripping fracture) even at a light load.

의료관계 해부 감정예의 분석적 연구(I) : 1990년 국립과학수사연구소 감정예

姜信夢,李垣兌,李漢榮,尹順雄,全基悳,金相鉉,徐在冠,尹重鎭 大韓法醫學會 1991 대한법의학회지 Vol.15 No.2

A study of 118 autopsy cases associated with medical care in 1990 was present according to the medical department, the mode of treatment and the cause of death. The Pediatrics showed the highest rate (25.4%), followed by the Obstetrics & Gynecology (22.9%), and Internal medicine (20.2%). According to the mode of treatment, medical accidents during operation and anesthesia were 29 cases (24.6%) with highest rate in Obstetrics & Gynecology (13 cases), 38 cases (32.2%) were during medication and/or injection with highest rate in Internal Medicine (18 cases), and 51 cases (43.2%) were during general medical practice with highest rate in pediatrics (19 cases). The most prevalent cause of death was the disease of respiratory system (34.9%, 30 cases) and the diseases of cardiovascular and urogenital system accounted for 31.4% and 11.6% respectively. The main cause of death in Internal medicine was the disease of cardiovascular system (11/24 cases), the respiratory system in pediatrics (15/30 cases) and the disease of urogenital system in Obstetrics & Gynecology (9/27 cases. ) Asphyxial deaths were 7 cases and the death due to adverse drug reaction accounted for 10 cases.

3경간 연속 중로식 강아치교의 내풍안정성을 고려한 라이즈 비 특성

강성후,박선준,최명기 東新大學校 工業技術硏究所 2004 工業技術硏究 Vol.10 No.-

The most important element is a rise ratio when regarding beauty and economics of arch bridges. Only the effect of dead load has been considered to decide the rise ratio. In this study, when going over the rise ratio of arch bridges, examined the problems, that the determination of the rise ratio by the dead load has, by adding the factor of a determination of optimum rise ratio, which is not only the effect of the dead load that has been currently considered but also the problem with respect to wind resistant dynamic stability that is now taken seriously. Synthetically, when deciding rise ratio that is investigated in basic step of design, it is not necessary to consider the evaluation wind resistant dynamic stability. Therefore the result of this research can be summarized as followes ; If it is identify oneself with rise ratio that the divided ratio due to the tie girder of the 3 continuous spans half-through steel arch bridges cannot cause a big effect in stability the wind resistant dynamic stability. If it is identify oneself with the relative stiffness ratio and girder depth ratio of the 3 continuous spans half-through steel arch bridges that the rise ratio proposes that it uses 0.10~0.30, divided ratio due to tie girder proposes that it uses 1.0~2.5 because of the wind resistant dynamic stability and the stress of the hanger. The rise ratio proposes that it uses 0.16~0.18 is given by the Japanese bridge construction association to obtained in investigation equation between an arch span length and the rise, using 0.1~0.2 at the basic design phase and the divided ratio which using 1.5 due to tie girder generally has been employed to main results and very well agrees with a research accomplishment results.

혈청 neuron specific enolase를 이용한 심정지후 신경학적 예후의 예측

강용선,정성필,박기일,김승환,김태승,이한식 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Background: The purpose of this study was to determine that the assessment of serum neuron specific enolase(NSE) could provide a reliable early predictor of neurologic outcome after cardiac arrest. Methods: Prospective, observational study was performed from April 1996 to March 1998 at a university teaching hospital ED. Serum NSE concentrations were analysed twice at 24 and 48 hours after return of spontaneous circulation(ROSC). Neurologic outcome was categorized using cerebral performance category(CPC). Results: Twenty-nine patients(16 were men) were enrolled during the study period. The mean age was 50.8 years. Nine(31%) of them showed good outcome defined as CPC 1-3, and 20(69%) patients showed bad outcome defined as CPC 4-5. In the good outcome group, the serum NSE was revealed 33.8±9.3 ng/ml at 24 hours, 34.0±4.73 ng/ml at 48 hours. While in the bad outcome group, it was 99.5±11.7 ng/ml and 114.6±15.8 ng/ml. The NSE at 48hr after ROSC was more prescise than that of 24hr. When the cutoff value of 50 ng/ml at 48hr, the sensitivity was 82%, and specificity was 93%. Conclusion: This study suggest that the serum NSE may represent a valuable, noninvasive, and useful clinical tool for prediction of neurologic outcome after cardiac arrest.