• 보건교육건강증진학회지
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• 제13권1호
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• pp.90-116
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• 1996

The purpose of this study is to provide basic data for the children so as to avoid any accidents and to improve their health through a sound and safe living environment with safety education established through more systematic methods. For the study, the methods used include the questionnaires for collecting data which are distributed among 273 children from 3 to 6 years old. They live in three districts of Seoul (Kangnam and Kangbuk), Kyeonggido (Munsan and Ilsan) and Incheon. The children's general characteristics are investigated and the relationship between the accident-proneness prospects and their results are analyzed assuming that children's health is expected to have an effect on their safety. The findings of the study are as follows: 1. The accident-proneness prospect (for the living safety) has significant difference in sleeping habits and physically weak conditions(p<0.05). 2. The accident-proneness prospect (for the traffic safety) has no significant difference in accordance with the children's health condition. 3. Children's reasoning power has no significant difference in accordance with their health condition. 4. Children's movement speed non-significantly differs in accordance with their health condition. 5. Children's movement stability has a significant difference in accordance with their health conditions such as history of mild disease(p<0.05) and physical work capacity(p<0.05). 6. Children's attention power has no significant difference in accordance with their health condition. 7. Children's characteristic activities show a significant difference in accordance with their health history of mild disease(p<0.05). mental health(p<0.05). eating habits(p<0.05) and others (i.e. auditory abnormality and skin desease)(p<0.05). 8. General assessment of the APP test has no significant difference in accordance with their health condition. 9. The health conditions are a significant difference in the history of mild disease in accordance with sex(p<0.05) and whole family members(p<0.001). Also there are shown significant differences. in accordance with sex(p<0.05). in physical work capacity(p<0.05). Eye sight, blood circulation and skin condition show significant differences in accordance with residence(p<0.05) and whole family members(p<0.01). and the condition of eating habits appeared significant in accordance with age(p<0.05). Also, sleeping habits and physically weak conditions shows significant differences in accordance with age(p<0.001) and housing pattern(p<0.01), and others (i.e. auditory abnormality and skin desease) show significant differences in accordance with residence (p<0.001).

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2009년도 정보 및 제어 심포지움 논문집
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• pp.141-144
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• 2009

The purpose of this study is to develop the auxiliary rehabilitation device for a patient of spinal curvature. The adolescent diopathic scoliosis(AIS) must be treated by rehabilitation brace if Cobb angle is $20^{\circ}{\sim}40^{\circ}$. The rehabilitation brace is consist of 4 vest and 2 hinge parts(hinge and couple bar) that give a force to the ribs. But thin and light hinge parts for young patient failed easily because of unusual movement of the upper body. We studied optimum design and structural analysis of hinge parts when it distorted by tensile and bending force. The specimen of hinge parts were tested to evaluate the failure strength. And we attached circuits with memory and sensor detecting pressure and displacement to recoding stress in hinge parts. These data are used to alarm the patient to stop unusual movement and understand the load history.

• 한국지능시스템학회논문지
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• 제21권5호
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• pp.537-542
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• 2011

거울 신경 세포는 동물이 어떤 동작을 할 때와 그 동물이 다른 동물의 동일한 동작을 하는 것을 관찰 할 때, 똑같은 세포 발화를 하는 신경세포이다. 본 논문에서는 거울 신경 세포의 발화 원리를 이용하여 비슷한 방법으로 보이지 않는 부분에 대한 객체의 움직임을 추적하는 방법을 3차원 재구축 방법을 통해 제안한다. 거울 신경 세포 시스템과 같은 발화 원리를 통해 의도 인지 시스템을 구축하기 위해, 스테레오 카메라를 통해 획득한 두 개의 이미지 데이터를 통해 깊이 정보를 계산하여 3차원으로 재구축한다. 3차원 재구축을 통해 만들어진 이미지 데이터를 옵티컬 플로우를 사용하여 3차원 이미지에서 객체의 움직임 방향을 추정한다. Estimation 알고리즘인 칼만 필터를 사용하여 객체의 움직임 추정을 잡음에 강인하게 한다. 객체의 움직임 추정을 통하여 객체의 움직임에 따라 구축된 이미지 데이터를 히스토리화 하여 데이터를 저장한다. 객체의 일부분 혹은 전체가 다른 물체로 인해 가려져 스테레오 카메라 시야에서 사라졌을 때, 과거에 저장된 히스토리로 부터 데이터를 가져와 가려진 부분에 대한 객체의 원래의 모습을 복원한다. 이 복원을 통하여 움직임 추정을 한다.

• 건축역사연구
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• 제19권3호
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• pp.31-49
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• 2010

This study intends to look into management and architectural space composition of Honjeon during the reign of Sukjong. Also it purposes to inspect how to affect management of the Royal Palace. The study is based on each Binjeon Honjeon Dogam Eugwe between late 17C and 18C. And the data on management of the Royal Palace is based on Joseonwangjosillok and Seungjeongwon Ilgi. Because Sukjong used ChangDeokgung and GyeongDeokgung alternately, Honjeon located at Munjeongjeon of ChangGyeonggung during Sukjong stayed at ChangDeokgung and located at Gyesangdang of GyeongDeokgung during Sukjong stayed at GyeongDeokgung. At that time, often movement of the King modified procedure of moving Honjeon. Between the first year of Hyenjong and the 9th year of Sukjong, architectural space of Honjeon was settled. In 1659, territory of Jeongjeon was settled. Also between 1674 and 1684, Goklimcheong was built. Construction of Goklimcheong is noticeable character. As Munjeongjeon was being used as Honjeon continually, it was recognized as Honjeon. Due to its long utilization as Honjeon, several gonvernment offices were transferred. Also it influenced utilization of Myeongjeongjeon.

• 한국ITS학회 논문지
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• 제21권4호
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• pp.78-95
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• 2022

아프리카 돼지열병, 구제역 등 가축전염병 유행과 관련된 기존의 연구 결과에서 가축전염병 확산의 주요 원인으로 축산 관련 차량 통행을 지목하는 경우가 많다. 이에 본 연구는 경기도 내 축산시설의 차량 방문이력 데이터와 화물차량의 디지털 운행기록계 데이터를 결합하여 각 읍면동의 주중 축산 화물차량 OD 통행량을 구한 후, 이에 기반한 가축전염병 확산 예측모형을 개발하였다. 모형은 2015년 1~2월 당시 주차별 구제역 발병기록을 이용하여 훈련되었으며, 긍정적 시나리오 기준으로 검증용 감염 표본 13개의 감염을 모두 예측해내는 데에 성공했다.

• 스마트미디어저널
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• 제11권8호
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• pp.21-28
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• 2022

오늘날 우리 사회는 21세기에 접어들면서 사회, 문화, 경제, 과학의 수준과 관심이 급속도로 발전하고 있지만, 과학교육은 아직 어려움을 겪고 있다. 과학교육의 효율을 높이기 위해서는 무엇보다 기초과학을 바탕으로 한 초등교육에 집중하는 것이 무엇보다 중요하다. 이에 본 연구에서는 현재 우리나라의 과학관이 단순한 과학체험관, 과학테마파크 등의 체험과 흥미, 재미 위주의 박물관으로 퇴행하고 있는 주요 원인이 무엇인지 분석해 보고자 한다. 이를 위해 지난 5년간 국내에 준공되어 운영 중인 과학관의 전시공간과 전시 동선의 데이터를 토대로 행위자 기반모형의 알고리즘을 적용하여 영향요인을 파악하였으며, 전시공간에서 나타나고 있는 관람객 동선에 대한 문제점을 공간체계를 통해 분석해 내었다. 본 연구에서는 전시공간의 체계를 박물관 전시 내러티브 이론에서 말하고 있는 직선적 플롯의 동선체계와 피칼레스크 플롯을 동시에 적용하였을 때 전시환경이 가장 우수하게 나타나는 것을 확인할 수 있었고, 효과적인 전시를 방해하는 주요 요인으로 주요 전시공간의 배치, 전시공간의 폭, 전시목적을 통한 공간 분리 등이 도출되었다.

• 한국해양공학회지
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• 제4권1호
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• pp.35-42
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• 1990

The area where age dating of the seafloor and interpretation of geomagnetic basic structure are conducted is also important in the aspect of geophysics. Near the sea mount (water depth to the top is 3900m and 6500m to the bottom), there are Mesozoic magnetic lineations at the sea-side flank along the trench axis. A two dimensional model analysis of Talwani and Heirtzler(1964) and a three dimensional model analysis of Talwani are performed by using data obtained from the marine proton magnetometer. Distribution, direction of the lineation, amplitude and period of magnetic anomaly are correlated and analysed with speed of the plate movement and lineation of the sea mount. In the west and north-west Pacific there are lots of huge sea mounts retaining the history of oceanic crust. This indicates that geomagnetic basis subsided into the oceanic crust and has interest in the aspects of the isostasy theory of the gravity.

• Journal of Preventive Medicine and Public Health
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• 제26권1호
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• pp.20-36
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• 1993

Work-related low back pain is one of the major factors that cause the loss of working power especially in actively working age, therefore controlling the work-related low back pain is one of the major issues in the field of industrial safety and health. This study was performed for detecting the risk factors and proposing the efficient control program of the work-related low back pain. The subjects were male workers employed at the manufacturing industry in Pusan with longer than 6 months' working duration. The data was collected by self-reported questionnaire and interview from May 1 to October 31,1992. The contents of questionnaire were as follows:. the experience of low back pain within the recent one month, general characteristics(age, marital status, education level, religion, regular exercise), physical characteristics(height, weight), employment status(working duration, daily working hours, rest during work, satis(action fur the job), type of work and working environments(posture, forward bending, lifting and movement, satisfaction for table and chair). The result was analyzed for 608 entire respondents by case-control comparative method. The number of cases was 152 with a history of work-related low back pain, so the relative frequency of self-reported work-related low back pain was 25.0%, and the number of controls was 344 without any history of low back pain. As a result, two characteristics of the employment status(working duration, satisfaction fur the job) and all characteristics of type of work and working environments showed a statistical significance between the case and control groups(p<0.01). The Oddb ratios of these variables for Work-related low back pain were calculated. They were 7.88 for the satisfaction fur chair, 7.86 for lifting and movement,3.31 for satisfaction for table, and 2.22 fur bending forward(p<0.01). And for the multivariate logistic regression analysis confirmed that unsatisfaction for table was independent risk factor for Work-related low back pain. In summary, though this study was based upon the self-reported questionnaire and the subjective complaints, the satisfaction for chair, lifting and movement, satisfaction for table, and bending forward concerned with the type of work and working environments were considered as the main factors causing the work-related low back pain, and the work-related low back pain may be preventable by the ergonomic control of these factors.

• 한국지구물리탐사학회:학술대회논문집
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• 한국지구물리탐사학회 2007년도 특별 심포지엄 논문집
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• pp.31-42
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• 2007

Dc resistivity monitoring has been increasingly used in order to understand the changes of subsurface conditions in terms of conductivity. The commonly adopted interpretation approach which separately inverts time-lapse data may generate inversion artifacts due to measurement error. Eventually the contaminated error amplifies the artifacts when reconstructing the difference images to quantitatively estimate the change of ground condition. In order to alleviate the problems, we defined the subsurface structure as four dimensional (4-D) space-time model and developed 4-D inversion algorithm which can calculate the reasonable subsurface structure continuously changing in time even when the material properties change during data measurements. In this paper, we discussed two case histories of resistivity monitoring to study the ground condition change when the properties of the subsurface material were artificially altered by injecting conductive materials into the ground: (1) dye tracer experiment to study the applicability of electrical resistivity tomography to monitoring of water movement in soil profile and (2) the evaluation of cement grouting performed to reinforce the ground. Through these two case histories, we demonstrated that the 4-D resistivity imaging technique is very powerful to precisely delineate the change of ground condition. Particularly owing to the 4-D inversion algorithm, we were able to reconstruct the history of the change of subsurface material property.

• 한국운동역학회지
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• 제28권3호
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• pp.181-185
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• 2018

Objective: The purpose of this study was to investigate the effect of types of drive-in initial steps in basketball on technical factors, to provide basic information for the enhancement of basketball skill. Method: Ten men (age: $24.70{\pm}2.26years$; height: $181.00{\pm}5.72cm$; weight: $75.70{\pm}8.23kg$; career length: $10.00{\pm}3.59years$), each with a career length of over five years and no history of injury to the lower extremities within the prior six months, participated in this study. They were asked to perform four types of drive-in movements at $35{\sim}60^{\circ}$, wearing their own shoes, after running from a start line 5 m away and catching a basketball passed by an expert passer. The drive-in movements were measured by eight infrared cameras (Oqus 300, Qualisys, Sweden). Collected raw data were used to calculate total initial step time, displacement, velocity, center of mass (COM) height, and COM velocity. Results: Total initial step displacement and velocity of cross drive-ins (JC, SC) were greater than that of direct drive-ins (JD, SD; p < .05). COM velocity of cross drive-ins (JC, SC) was also greater than that of direct drive-ins (JD, SD; p < .05). Conclusion: Our results indicated that cross drive-ins, regardless of stop step type, are more effective than direct drive-ins. This is because cross drive-ins are technically bold due to less influence from walking violations and double dribble rules in basketball. However, using one-sided movement is too difficult to play in competitive game; therefore, basketball players should develop the ability to choose appropriate movement frequency.