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한국 대도시 고령자의 체격, 체력 및 운동실태와 운동 프로그램개발에 관한 연구
김경지,강동원,장주호,전익기,윤우상,곽은창,박영진,유재충 경희대학교 사회체육연구소 1996 體育科學論叢 Vol.- No.9
The purpose of this study was to investigate the patterns of the health related variables, and physical characteristics and physical fitness of the elderly people in order to provide a exercise program. The data about the health related variables were collected through the personal interview, and the data about physical charateristics and physical fitness (height, weight, % body fat, blood pressure, pulse rate, grip stength, trunk flexion, side step test, 2 min, harvard step test) of 373 elderly people living Seoul and kyungkee area were collected. The conclusions of this study can be summarized as follow; 1. The test results about smoking, drinking, sleeping and self-evaluation of health revealed that the elderly people have self-confidence about their health. 2. Not many elderly people participate the proper exercise program even though they recognize the need of exercise. 3. The results showed that the elderly people do not pay much attention to the intensity of the exercise. 4. Muscle strength training for leg and the lower back and cardio-vascular endurance training was recommended to reduce the risk of varius problems caused by aging. 5. A exercise program was suggested for the elderly people.
Cystoperitoneal Shunting after Fenestration of an Enlarging Arachnoid Cyst
Jeon, Ik-Chan,Kim, Min-Su,Kim, Seong-Ho,Jang, Sung-Ho 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.2
A two-month-old girl with a history of an incidental arachnoid cyst in the prenatal period (38 weeks) presented with persistent irritability A follow-up computed tomographic (CT) scan revealed an enlarged arachnoid cyst with hydrocephalus We performed craniotomy and fenestration, but the cyst size did not decrease, and hydrocephalus had worsened on a follow-up CT scan performed 13 months after fenestration. The patient was treated with cystoperitoneal shunting Follow-up magnetic resonance imaging (MRI) performed 5 years later revealed that the arachnoid cyst had decreased in size and that the hydrocephalus had resolved. Enlarging arachnoid cysts are not common, and optimal surgical treatment is uncertain Based on the features of this case, we believe cystoperitoneal shunting is an advisable surgical intervention for patients with enlarging arachnoid cysts presenting with hydrocephalus.
전익수 ( Ik Soo Jeon ),전성찬 ( Sung Chan Jeon ),성준모 ( Jun Mo Sung ),최길순 ( Gil Soon Choi ),박한정 ( Han Jung Park ),예영민 ( Young Min Ye ),남동호 ( Dong Ho Nahm ),박해심 ( Hae Sim Park ) 대한천식알레르기학회 2009 천식 및 알레르기 Vol.29 No.4
Latex allergy is an important occupational health issue among health care workers. It is well known that significant cross-reactions are present between latex allergens and several fruits, including banana most commonly, followed by avocado, kiwi and chestnut, which is called the latex-fruit syndrome. A 36-year-old female patient visited our hospital with recurrent urticaria and angioedema after eating some fruits. She experienced episodes of anaphylaxis after eating banana or wearing latex gloves when working as a nurse in the delivery room 7 years ago. Allergy skin prick tests showed positive responses to banana, avocado, kiwi and chestnut extracts, and high serum-specific IgE to latex and banana were noted by the Immuno-CAP system and ELISA. Cross-reactivity between latex and banana was confirmed by the ELISA-inhibition test. Therefore, we report the case of latex-fruit syndrome presented in a patient with latex anaphylaxis. (Korean J Asthma Allergy Clin Immunol 2009;29:277-282)
신동호,김진호,이정희,박성수,최진원,박익수,이중달,윤호주,김태화,이동후,전석철 대한내과학회 1994 대한내과학회지 Vol.47 No.3
Tracheopathia osteoplastica (TO) is the presence of multiple ossified or cartilaginous sessile nodules in the submucosa of the trachea and bronchi. TO is a rarely described disorder which historically has not been frequently recognized antemortem. But studies by computed tomography and bronchoscopy now permita a definitive antemortem diagnosis. As far as we know, this is the first case of TO in Korea. We report a case of extensive TO diagnosed in vivo by the computed tomography, bronchoscopy and biopsy examination.
초분광센서를 활용한 이산화질소 농도 추정식에 관한 연구
전의익(Eui-Ik Jeon),박진우(Jin-Woo Park),임성하(Seong-Ha Lim),김동우(Dong-Woo Kim),유재진(Jae-Jin Yu),손승우(Seung-Woo Son),전형진(Hyung-Jin Jeon),윤정호(Jeong-Ho Yoon) 한국산학기술학회 2019 한국산학기술학회논문지 Vol.20 No.6
국내 산업단지에서 배출되는 대기오염물질의 모니터링을 위해 굴뚝원격감시시스템이 운영되고 있으나 대상 시설이 한정적이어서, 시스템이 설치되지 않은 시설은 단속 요원이 직접 모니터링 및 단속을 수행하고 있다. 그래서 효율적인 산업단지에서 배출되는 대기오염물질의 모니터링을 위해 다양한 센서를 활용한 연구들이 수행되고 있다. 이에 따라 본 연구에서는 초분광센서로 측정할 수 있는 분광복사량을 활용하여 대기오염물질 중 이산화질소의 농도를 추정할 수 있는 공식을 개발하고 검증하였다. 농도 추정식 개발을 위해 다양한 농도의 이산화질소를 대상으로 태양천정각, 관측천정각, 상대방위각을 다르게 하여 분광복사량을 관측하였다. 관측된 분광복사량에서 특정 파장 간의 값의 차이를 흡수 깊이로 하였으며, 흡수 깊이와 이산화질소 농도와의 관계를 이용하여 농도 추정식을 개발하였다. 그리고 개발된 농도 추정식들의 검증을 위해 이산화질소와 아황산가스가 혼합된 가스를 대상으로 측정한 분광복사량을 이용하였다. 그 결과, 추정식의 형태에 따라 결정 계수와 RMSE가 0.71~0.88, 72~323 ppm으로 나타났으며, 지수 형태의 농도 추정식의 결정 계수가 가장 높게 나타났다. 추정식의 형태에 따라 농도의 변화에 따른 추정 농도의 정확도가 일정하지 않지만, 향후 농도 추정식의 고도화가 이루어진다면 초분광 센서를 활용하여 산업단지 배출되는 이산화질소의 모니터링에 사용 가능할 것으로 판단된다. The CleanSYS(Clean SYStem) is operated to monitor air pollutants emitted from specific industrial complexes in Korea. So the industrial complexes without the system are directly monitored by the control officers. For efficient monitoring, studies using various sensors have been conducted to monitor air pollutants emitted from industrial complex. In this study, hyperspectral sensors were used to model and verify the equations for estimating the concentration of NO2(nitrogen dioxide) in air pollutants emitted. For development of the equations, spectral radiance were observed for NO₂ at various concentrations with different SZA(Solar Zenith Angle), VZA(Viewing Zenith Angle), and RAA(Relative Azimuth Angle). From the observed spectral radiance, the calculated value of the difference between the values of the specific wavelengths was taken as an absorption depth, and the equations were developed using the relationship between the depth and the NO₂ concentration. The spectral radiance mixed gas of NO₂ and SO₂(sulfur dioxide) was used to verify the equations. As a result, the R2(coefficient of determination) and RMSE(Root Mean Square Error) were different from 0.71~0.88 and 72~323 ppm according to the form of the equation, and R<SUP>2</SUP> of the exponential form was the highest among the equations. Depending on the type of the equations, the accuracy of the estimated concentration with varying concentrations is not constant. However, if the equations are advanced in the future, hyperspectral sensors can be used to monitor the NO₂ emitted from the industrial complex.
The Effect of Trace Addition of Strontium and Zinc on the Creep Properties of Mg-6Sn-5Al-2Si Alloys
Jeon, Jong Jin,Park, Bong Gyu,Park, Yong Ho,Park, Ik Min,Oak, Jeong Jung,Kimura, Hisamichi The Japan Institute of Metals 2009 Materials transactions Vol.50 No.6
<P>Mg alloys containing Mg<SUB>2</SUB>Si and Mg<SUB>2</SUB>Sn phases are promising inexpensive heat-resistant magnesium alloys for automobile engine applications. This study examined the microstructure and creep properties of Mg-6Sn-5Al-2Si alloys. The microstructures of these alloys were characterized by the presence of thermally stable Mg<SUB>2</SUB>Si and Mg<SUB>2</SUB>Sn and thermally unstable Mg<SUB>17</SUB>Al<SUB>12</SUB> precipitates. Creep tests were performed at 30, 50 and 70 MPa at 150, 180 and 200°C. Trace amounts of Sr and Zn were added to these alloys to improve the mechanical properties by modifying the precipitates in the matrix. The influence of the combined addition of Sr and Zn on the microstructure and mechanical properties was also studied. Analyses of the mechanical properties indicated that Sr and Zn addition improved the tensile strength but decreased the creep resistance.</P>
Median Nerve Stimulation in a Patient with Complex Regional Pain Syndrome Type II
Jeon, Ik-Chan,Kim, Min-Su,Kim, Seong-Ho The Korean Neurosurgical Society 2009 Journal of Korean neurosurgical society Vol.46 No.3
A 54-year-old man experienced injury to the second finger of his left hand due to damage from a paintball gun shot 8 years prior, and the metacarpo-phalangeal joint was amputated. He gradually developed mechanical allodynia and burning pain, and there were trophic changes of the thenar muscle and he reported coldness on his left hand and forearm. A neuroma was found on the left second common digital nerve and was removed, but his symptoms continued despite various conservative treatments including a morphine infusion pump on his left arm. We therefore attempted median nerve stimulation to treat the chronic pain. The procedure was performed in two stages. The first procedure involved exposure of the median nerve on the mid-humerus level and placing of the electrode. The trial stimulation lasted for 7 days and the patient's symptoms improved. The second procedure involved implantation of a pulse generator on the left subclavian area. The mechanical allodynia and pain relief score, based on the visual analogue scale, decreased from 9 before surgery to 4 after surgery. The patient's activity improved markedly, but trophic changes and vasomotor symptom recovered only moderately. In conclusion, median nerve stimulation can improve chronic pain from complex regional pain syndrome type II.