규칙적인 신체활동이 청소년의 생활 스트레스에 미치는 영향

길태오,구광수,이강헌 창원대학교 체육과학연구소 2004 경남 체육연구 Vol.9 No.1

본 연구는 규칙적인 신체활동이 청소년의 생활 스트레스에 미치는 영향을 규명하여, 청소년의 생활 스트레스 관리에 규칙적인 신체활동의 긍정적인 효과를 인식시키려는 목적으로 실시하였다. 연구대상은 유층집락 무선표집방법(stratified cluster random sampling method)을 이용하여 운동참여 집단(중학생 120명, 고등학생 93명) 213명과 비참여 집단(중학생 139명, 고등학생 95명) 234명, 총 447명을 표집하였다. 청소년의 생활 스트레스를 측정하기 위한 검사지로는 최해림(1986)의 생활 스트레스 척도를 이용하였고, 생활 스트레스의 영역은 학교생활, 가정생활, 대인관계의 3가지 영역으로 구분하였다. 수집된 자료는 신체활동 참여여부와 학교급별로 평균과 표준편차를 산출한 후 도표화하고, 평균차 검증을 위하여 이원변량분석과 상호작용효과 검증을 실시하여 분석해 본 결과 다음과 같은 결론을 얻었다. 첫째, 규칙적으로 신체활동에 참여하는 학생들은 신체활동을 실시하지 않는 학생들보다 생활 스트레스의 전 영역(학교생활, 가정생활, 대인관계 스트레스)에서 더 긍정적인 반응을 나타내었다. 둘째, 규칙적으로 신체활동에 참여하지 않는 학생들의 경우 가정생활 스트레스는 중학생이 고등학생보다 더 높은 수준이었고, 반면에 대인관계 스트레스는 고등학생이 중학생보다 더 높은 수준이었다.

대전광역시 상수도 원단위 조사 및 장래 용수수요량 예측

김태응,임봉수,허재영,이길영 大田大學校 環境問題硏究所 1999 환경문제연구소 논문집 Vol.4 No.-

This study was carried out examine per capita demand and forecast water demand until 2031 in Taejon City. These data can be used as the basis for the desgn and maintenance of water supply system. Future water demand including industrial water supply in Taejon City was predicted about 1,488,000m3/day in 2011, about 1,876,000 m3/day in 2021, about 2,275,000m3/day in 2031.

제주도대표급 수영 선수들의 그랩스타트의 플랫스타일과 폴드스타일의 운동학적 분석

이태길,류재청 濟州大學敎 體育科學硏究所 1999 체육과학연구 Vol.5 No.-

The study was undertaken to analysis kinematic variances between flat style and fold style in Grab start technique of Cheju representative swimmers. For this the study analysis technique was 3 dimension cinematographic method to 3 swimmers participated in the study. The conclusions obtained after analyse were as follows. 1. Temporal variance was not significant difference statistically between two styles all phases, but showed rather shorter in flat style than fold style. 2. Displacement variable(X. Y. Z) was not showed significant difference statistically between two styles in vertical(Z) and side direction(X) but showed signifcant difference statistically between two styles in P<.05 level. Therefore flat style was more desirable technique considering forward direction. 3. Velocity variable(X.Y.Z) was not showed significant difference statistically between two styles in side(X) and forward direction(Y ), but showed significant difference statistically between two styles in P<.05 level in vertical direction(Z). 4. Angular displacement showed significant difference statistically( PC05 level) in knee and hip joint between two styles. Flat style was more desirable technique Considering moment of inertia of lower leg. 5. Angular velocity was not showed significant difference statistically in knee and hip joint between two styles. 6. Factor influencing to velocity variable was showed very high positive or negative correlation relationship in vertical and forward direction in ready phase commonly in both styles. The correlation was showed very high negative relation between COG velocity of vertical direction in air phase and vertical displacement and COG velocity in forward direction

유산망아지에서 말herpesvirus 의 면역조직학적 및 immunogold 기법에 의한 전자현미경적 진단

신태균,이두식,진재광,임윤규,조길재 濟州大學校 農科大學 動物科學硏究所 1997 動物科學論叢 Vol.12 No.1

To investgate the causative Virus in aborbon of horse in Cheju, we examined the spleen of affected foal by immunohtochemistq and immunogold electron microscopy using EHV - specific antisera. Immunohistochemical staining revealed that a large number of EHV immunoreadive cells were deteded in the red pulp as well as in the sinudoidal cells in the affected spleen. By the immunogold electron microxopy(EM) of crude preparation of EHV culture, electron dense gold paricles were labelled along the envelope of amorphous virus parhcles with vanng sizes of 50-200nm. We suppose that immunohistochemical method is good for the diagnosis of tissues in EHV infections, and immunogold EM is recommended for the study of virus dia gnosis of fluid specimen as well as the ultrastustural study.

극저준위 감마선 분광시스템의 백그라운드 저감화를 위한 중성자 차폐체 설계

김태욱,박종묵,박종길,신상운,전재식 대한방사선 방어학회 2001 방사선방어학회지 Vol.26 No.2

극저준위 방사능측정시스템의 백그라운드에 영향을 주는 중성자를 차폐하기 위한 차폐체를 설계하였다. 중성자 차폐방법은 고 밀도 폴리에틸렌을 이용하여 고속중성자를 감속한 후 B4C를 이용하여 감속된 열중성자를 흡수하는 방법을 이용하였다. 몬테카를로 모사방법인 MCNP4B 코드를 이용하여 계산한 결과 고 밀도 폴리에틸렌의 두께가 10 cm 일 때 열중성자속이 최대가 되는 것으로 나타났으며 감속된 중성자의 흡수는 용제에 자연상태의 B4C 분말을 30 w% 섞을 경우 2 mm의 두께에서 94%의 중성자 흡수가 일어나는 것으로 나타났다. 또한 몬테카를로 모사를 통한 계산결과의 타당성 여부를 조사하기 위하여 중성자 차폐실험 장치를 제작하여 실험 결과와 비교하였으며, 비교 결과 실험값과 일치하는 것으로 나타났다 In order to shield the neutrons affecting the background of Low Level Gamma Ray Spectrometer, a neutron shielder was designed. The method used in this study for neutron shielding was the deceleration of fast neutrons by high density polyethylene(HDPE) and the absorption of those slowing-down neutrons by B4C. The calculation results of neutron interaction in HDPE using Monte Carlo simulation code MCNP4B showed that the thermal-neutron flux was maximum at 10 cm thickness of HDPE. The results also showed that 95% of the thermal neutrons were absorbed by 2 mm thickness of B4C absorber consisted of 30 w% B4C and 70 w% polymer. The results of the Monte Carlo calculation were in good agreement with the experimental value obtained by a neutron shielding apparatus designd for this purpose.

원형관로내 층류 맥동유동의 속도와 압력 분포에 관한 연구

박길문,유영태,위광환,이충주,정지철 조선대학교 생산기술연구소 1996 生産技術硏究 Vol.18 No.2

In this study basic equations for the pulsatile laminar flow in a circular rigid pipe containing a slightly compressible fluid are derived and analytical solutions for the distributions of wave propagation factor K, cross-sectional mean velocity u_(m) and pressure P are schematically developed and confirmed experimentally. The pulsatile flow with 0 ≤ f ≤ 48Hz and 0 ≤ Re ≤ 2500 generated by summing the oscillatory flow made by ball valve into steady one. The wave form of pulsatile flow is described as a longitudinal wave and particle velocities measured experimentally are group velocities of the wave packet which are always smaller than phase velocities which are approximate to the sonic velocity C when the radial dispersion and wall friction are negligible. Therefore wave number is approximated to k = ω/c for high angular velocity region. The axial pressures and centerline velocities were measured by strain-gage type pressure transducers and Pito-static tubes, respectively. The cross-sectional mean velocities calculated from centerline velocities with the parabolic distributions of the laminar flow and confirmed by using the ultrasonic flowmeter. We knew that axial distributions of oscillatory velocity and pressure coincide with thoeretical and depend on the Reynolds number and angular velocity.

비강비호즈킨 림프종의 전산화단층촬영 소견 : CT Features

노태연,백호길,원종부,박성호,박오봉,백승국,신미정,김봉기,최한용 침례병원 1998 浸禮病院學術誌 Vol.14 No.-

고질소 오스테나이트계 스테인리스강에서 Cr₂N 석출상의 결정학적 특성(Ⅱ) : Ⅱ. TEM을 이용한 Cr₂N 결정구조 분석 Ⅱ. TEM Study on the Crystal Structure of Cr₂N

이태호,오창석,이창길,김성준,高木節雄 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.11

In the second part of this study, the crystal structure of Cr₂N precipitates was investigated utilizing transmission electron microscopy (TEM). Based on the analyses of SAD patterns with various zone axes, the crystal structure of Cr₂N was confirmed to be trigonal belonging to the space group P31m, and could be explained in terms of E-type occupational-ordering model. Three sets of superlattice reflections (001), (⅓⅓0) and (⅓⅓1) distinguishing trigonal from hcp were identified in Cr₂N superstructure, and the important characteristics of these reflections were discussed in comparison with the previous studies. (Received August 23, 2004)

성인의 천미추부 종괴

조길환,이백권,장도명,김영진,안상태 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3

We developed an animal model to recreate the condition of an open fracture in communication with the maxillary sinus. We then studied wound healing of the sinus wall structures following fracture in the presence of autogenous bone and alloplastic implant. This model is designed to simulate the repair of an orbital floor fracture in humans. The New Zealand White rabbit was used as the animal model. Standardized 8mm defects were made bilaterally in the maxillary sinuses to include bone and mucosa in 36 rabbits. Two different implants and autogenous calvarial bone graft were placed in the soft-tissue pockets to obturate the defects, exposing one surface of the implant to the open sinus. Medpor porous polyethylene, silicone and calvarial bone implant were compared. Animals were killed at 1, 2 and 8 weeks after implantation. Gross examination of the specimens for the amount of mucosal closure and implant tissue fixation was performed. Histological sections were evaluated for bone and soft-tissue morphology juxtaposed to the implant. Complete closure of the mucosal defect was demonstrated with each type of implant. Medpor implants showed both vascular and soft-tissue ingrowth into pores by week 1. Bone ingrowth was seen by week 2. Closure of the Medpor obturated defects occurred more rapidly than in the silicone group. The Medpor implants and calvarial bone demonstrated bone and soft-tissue fixation, callus formation and maturation, while mature overlying mucosa was reconstituted over the defects. Silicone implants demonstrated a fibrous tissue reaction within 1 week of implantation and they never became fixed to bone or soft tissue. Maxillary sinus wall regeneration occurred in all defects. This study supports clinical observations of maxillary sinus wall regeneration in humans. Although sacrococcygeal mass is rare and usually found in infants or children, adolescent or adult patients with protruding mass in sacrococcygeal region occasionally come to us simply for a cosmetic problem. In this situation, even though there is no definite neurological deficit, it should be evaluated whether or not the underlying bony pathology or dural defect exists. Few cases about the sacrococcygeal mass have been reported in adults. We reviewed our cases including preoperative evaluation methods and postoperative diagnosis. From March, 1993 to February, 1997, we experienced 6 adult patients with sacrococcygeal mass and no neurological abnormality. Preoperative evaluation were made by plain X-ray, myelogram, computed tomography(CT), and magnetic resonance imaging (MRI), as needed. Postoperative diagnoses were 2 meningoceles, 2 lipomyelomeningoceles, 1 desmoid tumor, and 1 teratoma. From our experiences, CT or MRI is essential to evaluate the sacrococcygeal mass preoperatively. These methods can visualize the precise anatomic location and extent of the mass, its relation to the spinal cord, and associated bony abnormalities. MRI is superior to CT, especially in defining the nature of the mass and involvement of the spinal cord. Conclusively, even a simple mass in the sacrococcygeal region in adults needs MRI or CT evaluation, and MRI is the most valuable method of evaluating the mass preoperatively and provides important information to establish a treatment plan.

노인의 가족부양과 모녀 관계 고찰

金兌玄,田吉良 誠信女子大學校 生活文化硏究所 1992 生活文化硏究 Vol.6 No.-

This study explores explanations for family services for the elderly and adult daughters' relationships with their mothers. Reserach on families and older adults has consistently documented that families. especially adult children, are the predominant services and health care providers to the elderly parents. In our socity, to say "providers" is usually to mean the eldest son. Demographic trends and changes of family structure. however. suggest that the future availability of sons to serve as primary care-givers to their older parents may be limited. For example, the trend towards smaller families, the increase in the proportion of women in later market. the decrease of birth rate, attitudinal change with regard to responsibility for care of aged parents and revision of family law have influence on relationship between elderly parents and adult children. Adult daughters are specialty perceived to be and perceive themselves as emotionally closer to their parents than are sons. Therefore. when daughters have high affectional solidarity to their mothers and women survive their husbands. to examine adult daughters relatinships with their mothers is very important.