일부 직업인의 건강증진생활양식에 영향을 미치는 요인 연구

이은경,안병상,유택수,김성천,정재열,박용신,장두섭,송용선,이기남,Lee Eun-Kyoung,An Byung-Sang,Yu Taek-Su,Kim Seoung-Cheon,Jeung Jea-Yeal,Park Young-Shin,Jahng Doo-Sub,Song Yung-Sun,Lee Ki-Nam 대한예방한의학회 2000 대한예방한의학회지 Vol.4 No.2

The current industrial health service is shifting to health improvement business with 1st primary prevention-focused service from secondary and tertiary prevention-focused business, and Oriental medicine can provide such primary prevention-focused service due to the characteristics of its science. In particular, the advanced concept of health improvement can match the science of health care of Oriental medicine. Notably, what is most important in health improvement is our lifestyle, This does not underestimate the socio-environmental factors, which have lessened their importance due to modernism. The approach of Oriental medicine weighs more individuals' lifestyle and health care through self-cultivation. This matches the new model of advanced health business. Oriental medicine is less systemized than Western medicine, but it can provide ample contents that enhance health. If we conceive health-improvement program based on the advantages provided by these two medical systems, this will influence workers to the benefit of their health. Also, health Program needs to define factors that determine individual lives, and to provide information and technologies essential to our lives. The Oriental medicine approach puts more stress on a subject's capabilities than it does on the effect his surrounding environment can have. This needs to be supported theoretically by not only defining the relations between an individual's health state and his lifestyle, but also identifying the degree to which an individual in the industrial work place practices health improvement lifestyle . This is the first step toward initiating health-improvement business . In order to do this, this researcher conducted a survey by taking random samplings from workers, and can draw the following conclusions from it. 1 The sampled group is categorized into', by sender, female 6.6%, and male 93.4%, with males dominant; by marriage status , unmarried 43.9% and married 55.6%, with both similar percentage, and, by age, below 30, 48.4%, between 30 and 39, 27.4%, between 40 and 49, 18.2%, and over 50, 6.0%. The group further is categorized into; by education, middle school or under 1.7%, high school 30.5%, and junior college or higher 65.8% with high school and higher dominant: and by income, below 1.7 million won 24.2%, below 2.4 million won 14.8%, and above 2.4 million 6.3% Still, the group by job is categorized into collegians with 23.9%, office worker with 10.3%, and professionals with 65.8% , and this group does not include workers engaged in production that are needed for this research, but mostly office workers . 2. The subjects selected for this survey show their degree of practicing health-improvement lifestyle at an average of 2.63, health management pattern at 2.64, and health-related awareness at 2.62 The sub-divisions of health-improvement lifestyle show social emotion (2.87), food (2.66). favorite food (2.59), and leisure activities (2.52), in this order for higher points. It further shows health awareness (2.47) and safety awareness (2.40), lower points than those in health management pattern . 3. In the area of using leisure time for health-improvement, males, older people, married, and people with higher income earn higher marks. And, in the area of food management, the older and married earn higher marks . In the area of favorite food management, females, lower-income bracket, and lower-educated show higher degree of practice , while in the area of social emotion management, the older. married, and higher-income bracket show higher marks. In addition, in the area of health awareness, the older, married, and people with higher-income show higher degree of practice. 4. To look at correlation by overall and divisional health-improvement practice degree , this researcher has analyzed the data using Person's correlation coefficient. The lifestyle shows significant correlation with its six sub-divisions, and use of leisure time, food, and health awareness al

과두과증식을 동반한 안면비대칭 환자에서 과두절제술의 적용과 효과

임경섭,차정열,황충주 대한치과교정학회 2008 대한치과교정학회지 Vol.38 No.6

과두과증식은 하악의 3차원적인 골격적인 비대가 일어나는 병적인 상태이다. 이러한 과두과증식의 원인은 호르몬의 작용, 외상, 감염, 유전, 태아기 때의 요인, hypervascularity 등의 요인으로 알려져 있다. 과두과증식의 진단 시 가장 중요한 것은 과두과증식 상태가 아직도 활성화 상태인지 판단하는 것이다. 이러한 과두과증식의 상태에 따라서 안면비대칭 환자의 치료는 이환측 과두의 성장 부위를 제거하는 과두절제술을 시행하는 방법, 성장이 완료될 때까지 기다렸다가 통상적인 악교정 수술만을 시행하거나 과두절제술을 병행하는 시술방법이 있다. 과두과증식의 활성화 상태를 판단하는 것은 치료 안정성에 매우 중요한 요인이며, bone scan이나 주기적인 3차원 컴퓨터 단층촬영이나 정모두부방사선사진 등을 통하여 확인할 수 있다. 본 보고에서는 과두과증식을 동반한 안면비대칭 환자를 과두절제술을 이용하여 개선한 증례를 소개하고자 한다. Condylar hyperplasia is a pathologic condition showing 3-dimensional skeletal hyperplasia of the mandible. The reason for condylar hyperplasia is not yet known, but the effects of hormone, trauma, infection, genetics, fetal condition, and hypervascularity are known as possible reasons. When we diagnose a patient as having condylar hyperplasia, it is important to decide if it is in progress or not. Treatment for facial asymmetry due to condylar hyperplasia are decided accordingly, including condylectomy, that is removal of growth site of the affected condyle, and conventional orthognathic surgery only or condylectomy with orthognathic surgery after the completion of growth. Therefore, it is important to determine the growth state of condylar hyperplasia in treatment stability. This is verified through bone scan and regular check-ups with 3D CT or PA cephalogram. This case report introduces an improved case of facial asymmetry with condylectomy together with orthognathic surgery.

Doppler ultrasound를 이용한 교정적 치아 이동 시 치수 혈류량의 변화의 측정 : 예비실험

임경섭,배영민,차정열,유형석,황충주 대한치과교정학회 2009 대한치과교정학회지 Vol.39 No.6

교정적 치아 이동 시 지속되는 압력에 의해 혈류변화가 발생하게 되며, 이러한 변화양상에 있어서 선학들의 연구 방법 및 그 결과의 다양성이 존재하였다. 본 연구에서는 Doppler ultrasound를 이용하여, 교정치료 전과 교정치료 시작 3주, 6주 후 치수 혈류량의 연속적인 변화를 알아보고자 하였다. 만 15세 이상 환자 18명을 연구대상으로 Doppler ultrasound를 이용하여 상, 하악 6전치 중 경도의 총생(2 mm 미만)을 보이는 치아(총생측정: required space-available space)와 인접치아를 포함한 3개의 치아를 대상으로 치수 혈류량의 변화를 알아보았다. 연구결과 부위별(상, 하악), 치아별, 기간에 따른 치수 혈류량의 변화는 교정 치료 시작 전과 시작 후 3주, 6주 혈류량에 유의한 차이가 없었다. 또한 치수 생활력 상실의 내재적 위험성을 비교하고자 교정 치료 시작 전 치아별로 치수혈류량을 비교하였을 때, 상악에서는 측절치, 하악에서는 견치에서 통계학적으로 유의한 차이는 나타나지 않았지만, 모든 항목에서 적은 값을 나타냈다 (p > 0.05). 본 연구의 결과는 이후에 진행될 Doppler ultrasound의 치아이동유형, 환자의 연령을 고려한 세부적인 실험 시 방법론적인 기초 자료로서 뿐만 아니라, 교정치료 시 치수 생활력의 상실에 대한 참고 자료가 될 수 있을 것이다. Objective: This study was to change of pulp blood flow among maxillary and mandibular anterior tooth with mild crowding and adjacent teeth using Ultrasound Doppler graphy. Methods: The change of pulp blood flow was measured three times using Ultrasound Doppler graphy; before the attachment of brackets, after 3 week, and after 6 week. The sample consists of 15 year old eighteen patients. Results: Before the attachment of brackets, after 3 weeks, and after 6 weeks, there were no significant differences in the change of pulp blood flow in each part (maxilla and mandible) and each tooth according to period. In addition, to compare internal dangerousness of loss of the pulp vitality, when pulp blood flow is compared in each tooth before orthodontic treatment, there were no statistically significant differences in maxillary lateral incisor and mandibular canine but it showed low values in all measurement items (p > 0.05). Conclusions: Results of this study can be not only methodological preliminary data in further study such as tooth movement type of Ultrasound Doppler graphy and particular study considered the patient age, but also reference materials for the loss of pulp vitality in orthodontic treatment.

Die-upset Nd_(15)Fe_(77)B_8 자석의 자기적 특성에 미치는 제조조건 및 Ga 첨가의 영향

이경섭,김용성,박현순,서수정 成均館大學校 科學技術硏究所 1995 論文集 Vol.46 No.1

The effects of process parameters and Ga addition on the magnetic properties of die-upset Nd_15Fe_77B_6 magnets were studied. The intrinsic coercivity (_iH_C) was decreased because of grain coarsening by die-upset process. The Remanence (4πM_r) was varied by the extend of crystalline anisotropy. The alignment of c axis depend on the temperature and speed of die-upset process. The coercivity loss by die upsetting was reduced with Ga addition.

방사특성 변화에 따른 미세물분무의 소화특성

이경덕,신창섭 한국화재소방학회 2001 한국화재소방학회논문지 Vol.15 No.4

할론소화약제는 유류화재 및 전기화재의 진압에 가장 효과적으로 널리 사용되어 왔으나,이들은 오존층파괴지수와 지구온난화지수가 높아 환경문제를 야기하고 있다. 이러한 환경에 악영향을 주지 않는 대체기술의 하나로 관상을 끌며 연구되기 시작한 소화방법이 미세물분무를 이용한 소화설비이며, 미세물분무는 스프링클러의 살수입자에 비해 물입자가 작고 표면적이 크기 때문에 화염 면에서의 증발 및 냉각특성이 우수하며, 산소의 농도를 감소시키는 질식작용이 우수하다. 본 연구는 미세물분무 소화설비의 설계를 위한 기초단계로 유류화재에 대한 미세물분무의 입자크기, 유량밀도, 방사분포, 방사압력 및 화재의 크기에 따른 화염의 소화특성을 측정하였다 그 결과 액체 pool화재의 소화시간은 유량밀도가증가함으로서 짧아지고, 유량밀도가 0.5 ± 0.05㎖/㎠ · min이하인 경우 입자크기가 증가함으로서 짧아졌다. 또 방사주기를 변화시켜 실험한 결과 n-heptane화재에 대하여 간헐적으로 방사한 미세물분무가 소화에 효과적이었으며,이때 연속방사와 비교하여 화재를 소화하기 위해 필요한 물의 총량은 1/4로 감소하였다. Halogen-based fire suppressing agents have been the most effective fire suppressants and widely used for flammable liquid and electric fore. However, they have environmental problems causing stratospheric ozone depletion and globe warming. As a substitution of halon, fire suppression system using fine water mist is one of an effective fore suppressant. Suffocating and cooling effects of water mist are increased by the evaporation characteristics because it has droplet size less than 1,000㎛ and very large surface area. In this study, the extinguishing characteristics of fire was measured with changing of water mist droplet size, flow density; discharge pressure, and fire size. As a result, the extinguishing time of pool fire was shortened with the increase of flow density, and in case of low flow density less than 0.5 ± 0.05㎖/㎠ · min, the extinguishing time was shortened with the increase of droplet size. The cycling discharge was effective for n-heptane pool fire, and total amount of water mist required to extinguish fire was reduced to a quarter compare with continuous discharge. Keywords : Water mist, Droplet size, Fire suppression, Fire size, Cycling discharge

Nd-Fe-B-Al계 합금의 자기적 특성에 관한 연구

이경섭,박현순,서수정 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

The effects of Al additions and heat treatment on the magnetic properties of Nd-Fe-B sintered magnets were studied. As the Al content was increased, remanence was reduced and coercivity was increased. Also, as these sintered mangets were heat treated at 600℃, remanence(B_r) and intrinsic coercivity(_iH_c) were increased. In spite of coercivity was increased by the Al addition, maximum energy product(BH)_max was reduced. the highest energy product of 27.9MGOe was obtained in the Nd_15Fe_77B_8 magnet which was heat treated at 600℃.

속성 퇴비화에 관한 연구

임채규,박경수,김홍섭,노영복 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1

This experiment was conducted to fine out the rapid composting method and the effects microorganism agent. The results were summarilized as follows; 1. Each temperatures of every composts highest rised at the 5 days during the experiment composting. 2. Composting temperature of the more 60℃ was killed the harmful lavar and pathogenic microorganisms. 3. The lowest C/N ratio was No.2, among the each treatments. 4. C/N ratio of the each treatments were same results of the general compost C/N ratio. 5. The synthesized of these results were recognized the effects of microorganism agent and the each treatments were showed the more rapid composting then general compost.

산화구리를 이용한 ??와 ??제거 : 산화구리와 이산화황의 반응속도 Kinetic Study on the Reaction of SO₂ with Cupric Oxide

이태희,박경수,신창섭 연세대학교 산업기술연구소 1987 논문집 Vol.19 No.1

The reaction between cupric oxide supported on Zeolite 13X and sulfur dioxide of 2200, 3300 and 4400 ppm has been carried out in a fixed bed reactor. The conversion rate of sulfur dioxide was increased with temperature increase and removal efficiency was high at low inlet concentration of sulfur dioxide. The results consistent with deactivating catalyst model proposed by Levenspiel in which a gas-solid catalytic reaction leads to the formation of a nonvolatile product. The rate constants for reaction and deactivation are respectively as follows: k = 1.518 exp (-5860.4/RT) k?? = 0.00033 exp (2678.6/RT)

면외변위의 정량적 계측을 위한 ESPI와 Shearography의 비교

최정구,김경석,장호섭,정성욱 朝鮮大學校 機械技術硏究所 2005 機械技術硏究 Vol.8 No.2

Electronic Speckle Pattern Interfrometry is a common method for measuring out-of-plane displacement and in-plane displacement and applied for vibration analysis and strain/stress analysis. However, ESPI is sensitive to environmental disturbance, which provide the limitation of industrial application. On the other hand, Shearography based on shearing interferometer can directly measure the first derivative of out-of-plane displacement, which is insensitive to vibration disturbance. This paper proposes the out-of-plane displacement extraction technique from results of Shearography by numerical processing and measurement results of ESPI and Shearoraphy are compared quantitatively.

관상동맥 스텐트 내 재협착의 발생에 미치는 임상적 관동맥 조영술적 요인들

윤혁준,김기식,박형섭,이영수,현대우,한성욱,허승호,김윤년,김권배,박남희,원경숙 대한순환기학회 2003 Korean Circulation Journal Vol.33 No.12