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      • 비시즌 프로籠球選手의 體脂肪率이 脚筋파워와 心肺持久力에 미치는 影響

        문주열,조영석 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

        This study is designed to make a comparative analysis of non-seasonal professional basketball players' rates of body fats on their basic physical strength and uniform-velocity power and to present information necessary for enhancing the subjects' willingness, motivation, self-control and maturity and cultivating professional attitudes. With this in mind, the researcher worked with a total of 26 non-seasonal professional basketball players to evaluate their rates of body fat, VO₂max, uniform velocity measurement(knee) 60˚/sec, sergent jumps and side steps. Therefore I came to the following conclusions on the basis of the statistic confirmation of frequency analysis of the results by variable. ① A group of subjects with less than 15 percent of body fat turned out to have higher VO₂max than a group of subjects with more than 15 percent of body fat(p<0.05). ② There was no significant difference between the two groups in terms of uniform velocity power measurement. ③ The former turned out to have high sergent jumps than the latter(p<0.05). ④ There was no significant difference between the two groups in terms of side steps. The survey shows that the difference in the rates of the subjects turned out to have an influence on power and cardiovascular endurance. The bottom line is that the researcher should take into consideration individual diversity and methodological errors instead of restricting the range of body fat rates. After keeping one's body condition in the best condition with one's body weight determined, one should be cautious about an increase in body fat and control the consumption and intake of energy all the time. Professional players, in particular, should pay special attention to an increase or a decrease in their body fat so as to prevent their injuries and show effective athletic performance. This will enable the players to exercise their best performance capacity in an appropriate condition of physical structure involving skeletons, muscles and body fat required in sports. Therefore the researcher thinks that a rate of body fat has a certain influence on professional basketball players' best performance and long career.

      • 都市街路의 遲滯度推定에 관한 硏究

        임채문,권강훈,이주호,김태형 대구대학교 과학기술연구소 2001 科學技術硏究 Vol.8 No.1

        This study suggested input variables whose effects have been considered by adjusting various input variables in the TRANSYT-7F and NETSIM, the Simulation programs employed in calculating the delay time at street sections. The results can be summarized as follow. 1. Among the input variables in the TRANSYT-7F needed to calculate the delay time at street sections, the excluded are those which effect the most on time delay, such as bus stops, pedestrian crossings and on/off ramps. Among the input variables the most affecting factors are Saturation flow rate and time delay whose suggested quotients are well summarized in the text of this study. 2. There are variables which affect the change of time delay in the NETSIM, such as bus stop, pedestrian crossing, bus appearance period, and departure time delay. This study did the Simulation program using those variables except pedestrian crossing because, as the result of the correlation analysis suggests, there is a strong correlation between bus stop and pedestrian crossing. In this study, the survey had been done in the morning and afternoon except the Peak time, so heavily congested sections were excluded. And both sides of three street sections were surveyed. Therefore, there should be further studies on heavily congested situations and many other street sections.

      • KCI등재

        신체화장애 환자의 스트레스 대처방식 및 심리적 특성

        이주연,이무석,윤진상,양종철,문지웅,정해원,은성종 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.6

        Objectives : The purpose of this study was to investigate the stress coping strategies and psychological charactehstics, such as combined psychopathology and tendency of symptom interpretation, in patients with somatization disorder. Methods : Thirty patients meeting the criteria of DSM-IV somatization disorder were compared with thirty controls. We evaluated the subjects using Symptom Checklist-90-Revised (SCL-90-R), Somato-Sensory Amplification Scale (SSAS), Symptom Interpretation Questionnaire (SIQ), and The Ways of Stress Coping Questionnaire (SCQ). Independent t-test and Pearson correlation analysis were used. Results : From the results of SCL-90-R subscales, the scores of somatization, obsession-compulsion, depression, anxiety, and psychoticism were significantly higher in patients with somatization disorder than nonnal controls. Somatization disorder patients had greater amplification of physical sensation in SSAS and significantly higher score in physical interpretation of SIQ compared with psychological or environmental interpretation, In the SCQ of somatization disorder patients, we observed generallylower levels of total coping scores than the control group and significant positive correlation between passive coping style of SCQ and psychological interpretation of SIQ. Conclusion : These results show that patients with somatization disorder have various psychopathology, greater amplification of physical sensation, physical interpretation tendency of symptoms, and insufficient copying strategy.

      • KCI등재
      • KCI등재

        Pendulum 장치를 이용한 상악 대구치 후방이동에 관한 치험례

        김문현,백병주,이지연 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.2

        Orthodontists have long sought methods of correcting ClassⅡ malocclusions without straining the lower arch and without the need for strict patient compliance. In the 1990s, noncompliance therapies in various forms have become more prominent than ever before. The Pendulum Appliance is a hybrid that uses a large Nance acrylic button in the palate for anchorage, along with 032˝TMA springs that deliver a light, continuous force to the upper first molars without affecting the palatal button. Thus, the appliance produces a broad, swinging arc-or pendulum- of force from the midine of the palate to the upper molars. Since the Pendulum Appliance drives the upper molars distally (with slight lingual tipping) quite rapidly, there is a tendency for the anterior bite to open. This open bite generally corrects itself in brachyfacial types, especially those with tongue-thrust habits. I still recommend treating vertical growth patterns conservatively with extraction, directional headgears, and transpalatal bars. Patient tolerance of the Pendulum Appliance has been excellent; most adapt to the appliance within a week, Initial clinical findings have been encouraging. It is not unusual to see as much as 5mm of distal molar movement in three to four months.

      • KCI등재

        Low-viscosity Resin System이 복합레진 수복물의 변연누출에 미치는 영향

        백병주,김재곤,허선,김문현,양정숙 大韓小兒齒科學會 1997 大韓小兒齒科學會誌 Vol.24 No.2

        The purpose of this study was to evaluate and compare the effectiveness of various low-viscosty resin systems used as rebonding agents to prevent microleakage at the margins of class I composite resin restorations. Seventy sound human premolars were selected for experiment. Class I cavities were prepared and each cavity was conditioned with a 37% phosphoric acid for 15 sec, rinsed with water for 15 sec, and dried with compressed air. Bonding agent(Scotchbond Multipurpose, 3M Co.) was applied and a hybrid composite resin(Z-100, 3M Co.) was placed using an incremental technic. The excess cured composite resin was carefully removed with Sof-Lex discs(3M Co.) to expose the original margins of the cavity. The following seven groups were established: group 1 was not rebonded and used ascontrol group; group 2 was rebonded with a Scotchbond Multipurpose(3M Co.) and finished ; group 3 was rebonded with a Fortify(BISCO) AND finished ; group 4 was rebonded with a Concise white sealant(3M Co.) and finished ; group 5 was rebonded with a Concise white sealant(3M Co.) and not finished ; group 6 was rebonded with a P&F sealant(BISCO) AND finished ; group 7 was rebonded with a P&F sealant(BISCO) and not finished. The specimens were then subjected to 500 thermocycles between 5 & 65 with a 10sec dwell time and immersed in 2% methylene blue dye solution for 24 hours and sectioned with low-speed diamond cutter into two part under water condition. The extent of microleakage at rebonded margins was evaluated microscopically and scored for dye penetration according to the following scale : 0=no dye penetration ; 1=dye penetration to half-way along axial wall between enamel surface and DEJ ; 2=dye penetration beyond halfway along axial wal between enamel surface and DEJ ; 3=dye penetration to the full depth of DEJ or beyond DEJ. Selected samples were prepared for SEM observation to determine the depth of penetration of the rebonding agent into the marginal interface. The obtained results were as follow : 1. In the group 2 and 3, which is rebonded with a Scotchbond Multipurpose and Fortify, dye penetration score were decreased significantly than that of group 1(P<0.05), but group 4 and 6 were not statistically different from group 1(P>0.05). 2. There were significant differences between group 4, 6 and group 5, 7 when compared by dye penetration score(P<0.05). 3. In the SEM observation, Scotchbond Multipurpose and Fortify were penetrated within 30-40㎛ depth of the outermost surface. However, both sealants were failed to penetrate into the debonded interface.

      • 이미지 검색을 위한 관심영역의 오소추출과 데이터 변환 연구

        강문주,양동일,김덕은,최형진 강원대학교 정보통신연구소 2006 정보통신논문지 Vol.10 No.-

        In this paper we designed the content-based image system. It discovers the characteristic value of color area for the existing image, when any user establishes the special interesting region for the question images. And we designed the system to be able to search the similar image of the interesting region, compared with the table that saved the characteristic value of moment which is unchangeable for the size and the rotation of from. In this paper, we suggest th image search model based on neural network. This is able to seek for the aimed image through the feedback to search the nonlinear relations by th method of searching content-based image using SOM neural network. We make use of the Precision and the recall that are used for the system evaluation using the similar matching method in general. As a result of the evaluation of the content-based image system, we can reduce the time and memory to find out the feature value of the image that is meaningless in the general images.

      • KCI등재

        아동 및 청소년기의 하악각부 피질골 두께에 관한 방사선학적 연구

        백병주,김미라,노용관,김문현,김재곤 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.1

        The purpose of this stufy was to determine the thickness of the cortical bone at the mandibular angle in children and adolescents. The subjects were composed of 153 subjects who were 3 to 17 years of age that had not been history of bone disease or metabolic disease and no dental caries or tooth loss on mandibular molars. The subjects were divided into three age groups, group Ⅰ(preschool children) was 3 to 5 years of age and group Ⅱ (school children) was 6 to 11 years of age and froup Ⅲ (adolescence) was 12 to 17 years of age. Panoramic radiographs of these patients were collected and measurements of the thickness of the cortical bone were obtained at the mandibular angle. The average thickness of the cortical bone in the group Ⅰ was 1.01±0.18 mm in boys and 1.07±0.22 mm in girls. In the group Ⅱ was 1.23±0.18 mm inboys and 1.32±0.18 mm in girls. In the group Ⅲ was 1.60±0.23 mm in boys and 1.58±0.20 mm in girls. Statistical analyses did not reveal any significant difference was exist between the right or left side of the mandible but difference was exist between the same age groups by sex, especially in group Ⅱ (p<0.01), except in group Ⅲ. The greater thickness of cortical bone in the older age group was shown to be statistically significant. The correlation coefficient between age and the thickness of the cortical bone at the mandibular angle showed a high value of r=0.76.

      • 靑色 사파이어의 熱處理와 分光學的 特性

        나경주,김원사,김문영,배인국,장영남 충남대학교 기초과학연구소 1994 연구논문집 Vol.14 No.-

        For the blue sapphires from Santung, China, the color change before and after has been investigated by UV-Visible spectrophotometry method. The blue sapphires from Shantung show four groups of absorption bands: the bands A (374, 386 and 450 ㎚) being attributed to single Fe^3+ ion, the band B (560, 579 and 704 ㎚) to Fe^2+/Ti^4+ pairs, the band C (∼800 ㎚) to Fe^2+/Fe^3+ pairs, and the D (528 ㎚) to Ti^3+ dd transitions. From those UV-VIS characteristics the origin of blue color of the sapphires is confirmed to be attributed by the factors such as Fe^2+/Fe^3+ and Ti^3+/Ti^4+. The absorption spectra of natural blue sapphires before and after heat treatment show distintive features, comparing with those of sapphires from other localities: the bands of 689 ㎚ and of Cr^3+ are not recorded on the spectra of sapphires from Shantung. The band (492 ㎚), which resulted from Ti^3+, is not shown and the intensity of the band 528 ㎚ decreases after the heat treatment. Decoloration of ink-blue sapphires are found to be successful by heat treatment with the control of annealing and atmosphere. During the diffusion process the excess components of impurities contained originally in the host crystal were expelled to the surface of crystals, enhancing the transparency of the crystals noticeably.

      • KCI등재

        소아에서 발생한 비치성 양성종양에 관한 임상적 연구

        백병주,김문현,김재곤,허선,김영신 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.2

        Non-odontogenic tumors can be classified as malignant or benign. Most oral tumors in children are benign. In the Belfact series only 7.5 percent of soft tissue tumors were malignant and Bhaskar(1963) found only 9 percent of 293 oral tumors of all kinds to be malignant. Benign tumors may be classified as epithelial and mesenchymal. The most common tumor of surface epithelium is the squamous papilloma. These are easily recgnized clinically as cauliflower-like lesions. Fibrous lesions are very common in children's mouths. Many of these are not true neoplasms but are related to fibrous hyperplasia. Another common oral tumor in children is angiomatous tumor. Hemangioma occurred more frequently than lymphangioma. Cy stic hygroma, a cystic subtype of lymphangioma, is a developmental tumor of lymphatic origin. It is a considered to be a relatively rare lesion. about 50 precent of cystic hygroma are present at birth, and most of the remaining 50 percent appear in the early years of life during the period of active lymphatic growth. The preferred treatment for these lesions, except for hemangioma, is complete surgical excision. With proper surgical techniques, recurrence is not expected.

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