환경영향평가에 있어서 보건영향평가의 방법, 절차 및 적용에 관한 연구

조일형,박재홍,김임순,한상욱 한국환경영향평가학회 2003 환경영향평가 Vol.12 No.3

Most environmental impact assessment(EIA) programs around the world require the consideration of human health impacts. Yet relatively few EM documents adequately address those impacts. This article examines how, why, and to what extent health impacts are analyzed in environmental impact assessments. This article investigates these problems and provides recommendations to improve human health impact assessment(HIA), using methods, procedures and case study. Also, a comprehensive approach for the evaluation of possible health effects in an EIA is described, illustrated with the example of Amsterdam Airport Schiphol. Unlike many EIAs, we estimated quantitatively the impact of aircraft-related pollution in terms of the number of affected people for aircraft noise annoyance, odour annoyance and hypertension. In addition, an analysis of health registry data on cardiovascular and respiratory diseases and a short survey on annoyance and risk perception were carried out.

Ⅱ형 無水石膏를 利用한 高强度 콘크리트 PC Pile用 混和材 開發에 關한 硏究

조민형,남재현 大田大學校 産業技術硏究所 1997 산업기술연구소 論文集 Vol.8 No.1

The purpose of this study is to develope on alternative admixture for manufacture of PHC pile(compressive strength above 800㎏/㎠). For the investigation, alternative admixtures were made of Ⅱ-anhydrite and pozollanic fine powers(e.q., fly-ash, silica-fume), and the fluidity of the cement pastes and mortars added to these admixtures and compressive strength of hardened mortars at steam curing condition, were respectively examined. Also, base on the that study of cement pastes and mortars, properties of compressive strength of concretes with existing admixture(specimen name SM) and alternative admixture(specimen name MFS-1) for High-strength concrete precast pile, at steam and standard curing condition, were compared each other. As a result of this experimental study, it was found that specimens made on Ⅱ-anhydrite and pozollanic fine powers had an increase on the fluidity of cement pastes and mortars, and compressive strengths of mortar and concrete were as good as those with SM. Consequently, we could prove that a high strength concrete(with a compressive strength of 985㎏/㎠ at 28 days) for high-strength concrete precast pile was able to be made with such admixture.

배드민턴 선수들의 정신력 특성 분석

조용찬,이동수,이재형 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The purpose of this study was to investigate the mental toughness of Badminton players and suggest way of performance enhancement using Loehr's AET(Athletic Excellent Training) program. Subjects of this study were sampled 243 the badminton players (133 male, 110 female) by the random sampling method. The method of statistics used to analysis the collected data are mean, standard deviation, two-way ANOVA. Based on the procedures and results, the following conclusions were warranted ; 1. Arousal control. Attention control were significant between high school and major badminton players. Major badminton players showed lower score than that college badminton players(p<.05). 2. Positive energy were significant difference a statistics of sex. 3. In general Self-confidence, Arousal control, Attention control level. which are important factors of badminton players. were lower then the norm of AET. 4. Imagery, motivation level. Attitude control level of high school groups showed lower score. 5. Self-confidence, Arousal control, Attention control level, motivation level, Positive energy factors of showed lower score, Imagery, Attitude control level factors of showed higher score.

불안정성 흉요추체 방출형 골절 환자에서 기구를 이용한 고정술의 결과

안병조,이정청,김재은,김형일,김철진,최하영 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.9

Fifty six patients with unstable thoracolumbar bursting fractures were treated using variable internal fixation devices such as the Kaneda Anterior Fixation System(Kaneda device), the Z-Plate-ATL^(TM) Anterior Fixation System(Z-Plate ATL^(TM)device), the Harrington device. Cotrel-Dudousset(CD) or Compact Cotrel Dubousset(CCD) device of Steffee Transpedicular System with or without decompression. Suchy internal fixation devices were grouped into anterior and posterior internal fixation devices and compared with each other in the aspect of the degree of neurological improvement, the changes of the vertebral height and the kyphotic angle, the duration of admission, and postoperative complications. In conclusion, the anterior internal fixation device appears to be of more benefit in the management of patients with unstable thoracolumbar bursting fracture

교정용 선재의 직경 증가를 위한 전기도금법과 무전해도금법의 비교연구

김재남,조진형,성영은,이기헌,황현식 대한치과교정학회 2006 대한치과교정학회지 Vol.36 No.2

본 연구는 교정용 선재의 직경을 증가시키기 위한 방법으로 무전해도금법의 이용 가능성 여부를 전기도금법과의 비교를 통해 알아보고자 시행되었다. 0.016 인치 스테인레스 스틸 교정용 선재에 도금을 위한 전처리를 시행한 후, 시중에 판매되는 무전해니켈도금액(Hessonic-Gr, 신풍금속, 한국)을 사용하여 90℃ 온도에서 0.018 인치 직경이 될 때까지 도금을 시행하였다. 무전해도금 과정 중 시간에 따른 직경증가율을 구하는 한편, 도금 후 세 지점의 직경을 계측하여 균일성을 평가하였다. 도금 금속의 정성분석을 위하여 X-선 회절분석을 시행하는 한편, 물성검사를 시행한 후 전기도금한 경우와 각각 비교 분석하였다. 연구결과 무전해도금한 군이 전기도금을 시행한 군보다 강성, 항복강도, 극한강도 모두 높은 경향을 보였으며 강성과 극한강도에서 통계적으로 유의한 차이를 나타내었다 (p < 0.05). 또한 무전해도금한 군의 직경증가율은 0.00461 ± 0.00003mm/5min (0.00092mm/min)로, 전기도금한 군의 직경증가율 0.00821 ± 0.00015mm/min와 차이를 보였다. 도금 후 세 지점의 직경을 계측하여 균일성을 평가한 결과, 두가지 도금법 모두에서 균일한 양상을 보였다. 이상의 결과로 무전해도금법을 통해 직경이 증가된 선재가 전기도금법에 의해 직경이 증가된 선재보다 기존의 선재와 가까운 물성을 보임을 알 수 있었으며, 이의 임상적 적용을 위해서는 도금시간의 감소가 필요함을 알 수 있었다. The purpose of this study was to evaluate electroless plating as a method of increasing the diameter of an orthodontic wire in comparison with eletroplating. After pretreatment plating of the 0.016 inch stainless steel orthodontic wire, electroless plating was performed at 90℃ until the diameter of the wire was increased to 0.018 inch. During the process of electroless plating, the diameter of the wire was measured every 5 minutes to examine the increasing ratio of the wire's diameter per time unit. And to examine the uniformity, the diameter at 3 points on the electroless-plated orthodontic wire was measured. An X-ray diffraction test for analyzing the nature of the plated metal and a 3-point bending test for analyzing the physical property were performed. The electroless-plated wire group showed a increased tendency for stiffness, yield strength, and ultimate strength than the electroplated wire group. And there was a statistically significant difference between the two groups for stiffness and ultimate strength. In the electroless-plated wire group, the increasing ratio of the diameter was 0.00461 ± 0.00003 mm/5 min (0.00092 mm/min). In the electroplated wire group, ti was 0.00821 ± 0.00015 mm/min. The results of the uniformity test showed a tendency for uniformity in both the plating methods. The results of this study suggest that electroless plating of the wire is closer to the ready-made wire than electroplating wire in terms of the physical property. However, the length of plating time needs further consideration for the clinical application of electroless plating.

스캔 설계 법칙 검사에 관한 연구

이재훈,김형국,조경연,임동욱,민형복 成均館大學校 科學技術硏究所 1997 論文集 Vol.48 No.2

Since testing of digital circuit is becoming increasingly important, many methodologies have been introduced to enhance design for testability (DFT). DFT was taken into account in the automated test procedure and improved reliability of the design. Both tasks are well suited for scan rule checker. This paper presents a scan rule checker for gate level digital circuits. The scan rule checker deals with basic rule check, basic scan rule check, muxed scan rule check, clocked scan rule check and lssd. Scan design informations were represented in the configuration file and libraries were modeled for the scan rule checker. It is an efficient way for the design for testability methodology.

골형성부전증 10예의 임상적 특징

이형숙,김현주,조재현,이승원,김현아,최준혁,송영준,김대중,이관우,정윤석 대한내분비학회 2003 Endocrinology and metabolism Vol.18 No.5

연구배경 및 방법: 골형성부전증은 비교적 희귀한 유전병으로 교원질 대사 장애로 인한 골의 취약성과 다발성 골절 및 척추측만증 등을 특징으로 한다. 유전방식과 표현형의 발현 정도에 따라 다양한 임상 양상을 보이며, 임상적 중증도에 따라 4가지 형태로 분류된다. 지금까지 국내 보고는 분만과정이나 태아 진찰시 골격이상으로 발견된 증례보고가 주였다. 저자들은 비교적 경미한 임상 양상을 보이는 예를 포함한 다수의 골형성부전증 환자들의 전반적인 임상적 특징에 대해 보고하는 바이다. 결과: 2001년 6월부터 2003년 2월까지 골형성부전증으로 진단받은 6 가계, 10예를 대상으로 하였다. 평균 나이는 27.3(5∼56)세였고 소아가 2예였다. 모두 상염색체 우성으로 유전되었으며, 제 I형이 4예, 제 III형이 4예, 그리고 제 IV형이 2예였다. 전 예에서 다수의 골절 경험이 있었고, 골밀도 저하와 골피질 두께 감소 소견이 관찰되었다. 전신의 평균 골밀도는 0.690(0.421∼1.039) g/cm²였다. 골형성지표로 측정된 sAlk는 소아의 경우만 증가되어 있었고, 골흡수지표로 측정된 uDPD의 평균치는 12.9(4.4∼36.3) nM/mM Cr으로 증가된 소견을 보였다. mobility score는 대부분 3,4단계에 속해 있었다. 중증형일수록 진단 시의 mobility score가 낮은 경향을 보였다. 결론: 한국인 골형성부전증 환자의 임상적 특징을 살펴본 결과 기존의 보고된 II형 외에도 I, III, IV형이 다양하게 존재함을 알 수 있었으며, 모든 예에서 상염색체 우성으로 유전됨을 확인할 수 있었다. 또한 모든 예에서 증가된 골흡수로 인한 골밀도 저하와 골절을 확인할 수 있었다. Osteogenesis Imperfecta (OI) is a relatively rare hereditary disease, which is characterized by multiple bone fractures and spine scoliosis, due to the fragility of bone, and is often associated with blue sclerae, deafness and dentinogenesis imperfecta. Four types of OI can be distinguished, according to the clinical findings. Although mutations affecting type I collagen are responsible for the disease in most patients, the mechanism by which the genetic defects cause abnormal bone development remains to be fully understood. Here, the clinical characteristics of 10 OI patient cases are reported, with a review of the literature. All the cases, including 4 type I, 4 type III and 2 type IV, inherited OI as an autosomal dominant trait. All the subjects had multiple old fractures and decreased bone densities. In this study, the biochemical marker of bone formation, serum alkaline phosphatase, was found to be increased only in the pediatric OI patients, while the biochemical marker of bone resorption, urinary deoxypyridinoline, was increased in all cases. The mobility score was found to correlate with the severity of the type on diagnosis (J Kor Soc Endocrinol 18:496∼503, 2003).

자연정화공법에 의한 하수처리장에서 최적 여재 선정

서동철,이홍재,조주식,박현건,김형갑,허종수 한국환경농학회 2003 한국환경농학회지 Vol.22 No.1

농어촌 등에서 소규모로 발생하는 하수를 환경친화적이고 높은 하수처리효율을 유지하면서 하수처리장의 장기간 사용을 위한 최적의 여재를 선정하기 위하며 자연정화공법을 이용한 소형하수처리장치를 호기성조 및 혐기성조로 구분하여 시공한 다음, 하수처리량 및 여재 입경별 수처리 효율을 조사하였고, 호기성조와 혐기성조에서 여재 입경별 하수의 투수속도를 조사한 결과는 다음과 같다. 호기성조 처리수 및 방류수중의 pH 및 EC는 여제입경에 따라서 별 차이가 없었고, 용존산소는 호기성조를 동과한 호기성조 처리수의 용존산소는 큰 폭으로 증가하였으나 혐기성조를 통과한 방류수의 용존산소는 호기성조 처리수에 비해 약간 감소하여 여재입경 및 하수처리량에 따라서 별 차이가 없이 약 2.4~5.1 mg/L정도이었다. BOD,000 및 탁도 처리율은 여재 대(4~10 mm)를 사용했을 경우에도 호기성조 처리수에서 BOD 처리율은 약 91%이상, COD 처리율은 73%이상, 탁도 처리율은 83%이상이었으며, 이들 처리율은 여재입경이 작을수록 증가하였고 모든 조건에서 방류수중의 BOD 처리율은 98%이상, COD 처리율은 91%이상, 탁도 처리율은 98%이상이었다. 여재입경별 총 질소 및 총 인 처리율은 여재입경이 작을수록 약간 증가하였고, 모든 조건에서 방류수중의 총 질소 처리율은 약 45~59%, 총 인 처리율은 약 80~96% 정도이었다. 하수 처리율 및 투수속도를 고려해 볼 때 하수처리장 호기성조의 최적입경은 2~4 mm정도 혐기성조의 최적입경은 0.1~4 mm정도가 적절한 젓으로 사료되었다. 따라서 이러한 조건을 자연정화공법을 이용한 하수처리장에 적용하면 높은 하수처리효율을 유지하면서 하수처리장의 공극폐쇄현상이 일어나지 않아 장기간 운전할 수 있을 것으로 판단된다. An investigation was carried out to evaluate the effects of pebble size on the small-scale sewage treatment apparatus by natural purification method that consisted of aerobic and anaerobic plot pH and EC in both plots varied minimally regardless of pebble size. DO in aerobic plot increased as the pebble size decreased. That in the anaerobic plot was slightly less in comparison with that of the aerobic plot, but varied minimally, 2.4~5.1 mg/L regardless of pebble size. Under all experimental conditions, removals of BOD, COD and turbidity in anaerobic plot were more than 98, 91 and respectively. Removals of T-N and T-P increased as pebble size decreased. Under all experimental conditions, removals of T-N and T-P in anaerobic plot were about 45~59 and 80~96%, respectively. Judging from the above results, it should be considered that the optimum pebble size and pebble permeability in both plot was 2~4 mm and 0.1~4 mm, respectively.

스포츠 유형에 따른 여가만족도에 관한 연구

천영일,이재형,조현철 중앙대학교 스포츠과학연구소 2002 體育硏究 Vol.- No.16

The Purpose of this study was to the relationship between type of sports activity and leisure satisfaction among collegiate. The main purpose of this study was to examine the effects of the type in sports activity on leisure satisfaction by comparing the difference of psychological, educational, social, physiological, relaxational, and environmental satisfaction. Subjects of this study were sampled 696 the collegiate(392 male, 301 female) by the random sampling method. The method of statistics used to analysis the collected data are frequence, covariance analysis, correlation analysis, multiple regression analysis, and path analysis using multiple regression analysis. Based on the procedures and results, the following conclusions were warranted; 1. Background variables such as sex, income, and self-rated health among sociodemographic characteristics in fluence on leisure satisfaction. 2. The type of sports at activity among the collegiate has an influence on the psychological satisfaction. That is, difference in psychological satisfaction according to the type of sports of sports activity, and individual event is the highest. 3. The type of sports activity among the collegiate has an influence on the social satisfaction. That Is, difference in social satisfaction according to the type of sports of sports activity, and team is the highest. 4. The type of sports activity among the collegiate has an influence on the social satisfaction. That is, difference in educational satisfaction according to the type of sports of sports activity, and team is the highest. 5. The type of sports activity among the collegiate has an influence on the physiological satisfaction. That is, difference in physiological satisfaction according to the type of sports of sports activity, and team is the highest. 6. The type of sports activity among the collegiate has an influence on the relaxational satisfaction. That is, difference in relaxational satisfaction according to the type of sports of sports activity, and leisure event is the highest. 7. The type of sports activity among the collegiate has no an influence on the environmental sati satisfaction.

신성고혈압쥐에서 혈관내피층이 Phorbol Ester에 의한 수축에 미치는 영향

정수아,김형,차경훈,전제열,윤평진,염철호,박진,조남수,홍순표 대한순환기학회 2003 Korean Circulation Journal Vol.33 No.11