선박 전기전자기기용 서지방호장치의 제작

장운용(Un-Yong Jang),정광석(Kwang-Seok Jung),박대원(Dae-Won Park),길경석(Gyung-Suk Kil),박성주(Sung-Ju Park) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.10

This paper presented surge protective method and devices for shipboard electrical and electronics devices. Parallel type surge protective devices (SPD) for the 440 [V] and a series type SPD for the 220 [V] rated voltage were designed and fabricated. The performance were evaluated by an un-powered test which applies the 8/20 [㎲] surge current Lip to 10 [㎄]. The maximum clamping voltage of the parallel and the series type SPD were 1,032 [V] and 875 [V], respectively.

택시 운전기사들의 유병상태에 관한 조사 연구

심운택,이종연,오장균,조영채 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

A questionnaire survey was conducted on 572 taxi drivers in Taejeon City to investigate the prevalence rate which was derived from the subjective symptoms of respondents according to the working condition and daily life effected on health. The disease were classified the cardiovascular disease, gastrointestinal disease, neurotic disease and musculoskeletal disease according to the subjetive symptoms. The results obtained were as follows : 1. Among the subjective symptoms. the complaint rate of latigability, eye strain, loss of appetite, irritability, dizziness on standing, stiffness on shoulder. and low back pain became decreased in that order. 2. The prevalence rates of cardiopulmonary and gastrointestinal disease were low in the old aged group, and the prevalence rates of all disease was proportional to the frequencies of accident experience. but no evident trend in job conditions. 3. The groups having regular meal time and rest after meal showed low prevalence rate in all disease. The sleeping time and smoking habit were related to the neurotic and cardiopulmonary disease. 4. The group of usual drug intake occupied 68% of all studied subjects, the age group of 40 or more and the group of having G-1 disease showed high rats of usual drug intake.

양극성 장애와 Monocyte Chemoattractant Protein-1 유전자 다형성

배치운,김태석,장우영,김정진,이창욱,이수정,전태연,이철,백인호 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.5

Objectives : Several studies suggested that cytokines could be involved in the pathogenesis of mood disorders, while data for bipolar disorder is relatively deficient (BD). BD, Knowned to have a inherited tendency, has been considered to be related with T-helper cell system. This study was designed to investigate the association between polymorphism of monocyte chemoattractant protein-1 (MCP1) gene at promoter-2518 and BD. Methods : Patients with BD (n=92) in accordance with DSM-FV criteria and control subjects (n=114) participated in this study. DNA was extracted from whole blood and the MCP-1 gene promoter region was amplified by polymerase chain reaction-based method. Results : Genotype and allele distributions in patients with BD were not different from those of control subjects (p=0.587 ; p=0.384). Genotype and allele distributions in accordance to presence or absence of suicide attempt (p=0.423), family history (p=0.733) and psychotic feature (p=0.436) were not different between the two groups. Conclusion : Present study suggests that the MCP1 promoter -2518 polymorphism may not affect the susceptibility and clinical diversity of the development of BD.

간호중재분류체계(NIC)를 이용한 중환자실 간호중재 분석

권경남,장희정,황운순,김은주,이미경 영남이공대학 산업기술연구소 2000 産業技術硏究 Vol.12 No.-

The purpose of this research was to identify nursing interventions performed by the ICU nurses from 2 university hospital in Taegu. For this research, I used the Nursing Intervention questionnaire developed by the Iowa Intervention Project and translated by korean specialists and professor concerned to the same field. In order to obtain the data, a special group of professor, head nurse, charge nurse, researcher was instituted. The special group work validataed 205 nursing interventions with agreement of more than 50% becuse the NIC(433 nursing intervention) survey process was too time-consuming and not appropriate for all labels. The data were collected from June 1 to 30, 1999 and analysed with SAS program. The obtained results are as follows; (1) 94 interventions were performed at least daily. (2) The most frequently used nursing interventions were Parenteral Medication Administration, Aspiration Precautions, Pressure Ulcer Prevents, Positioning, Airway Management, Cough Enhancement in rank. In conclusion, this research using NIC has helped to figure out the component to the ICU care in korea. The use of this results will contribute to enhance quality assessment and improve standard of ICU nursing.

대전·충남지역 와병노인의 실태에 관한 연구

이동배,심운택,이태용,오장균,정성훈 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

This study was conducted to investigate the prevalence rate and the relationship between causative diseases and self-help abilities in bed ridden patients of the elderly. The study group was composed of 1.568 peoples aged 65 or more, living in Taejeon city and Chungnam provincial area. The results obtained were as follows : 1. The prevalence rate of bed ridden patients were 5.7% in male, and 4.3% in female. The rates revealed increasing basis with the ages. 2. The prevalence rate was higher in city area with 6.1% than inland and seaside area with 4.3%, 3.7% respectively. 3. The mean age of bed ridden patients were 75.9 years in male. 78. 0 years in female. The rates were variable with residential area. As the cause of bed ridden patients the cerebrovascular disease was higher in urban than rural area. 4. The mean age of causative diseases was the highest in contusion and fracture with 82.8 years. The period of bed ridding was the highest in muscular disease and arthropathy with 60.2 monthes. 5. The average score of activity of daily living was the highest in muscular disease and arthropathy and followed by respiratory disease, other disease, senility, cerebrovascular disease, contusion and fracture with decreasing basis. But most bed ridden patients did the activity of daily living similar to those of normal persons. 6. The causative diseases were diagnosed mainly in general hospital, hospital. and herb medicine. but muscular disease and senility were in self-diagnosed. 7. The helper of bed ridden patients were mainly wives or daughters in law.

Binocular Visual Function in Patients with Normal Tension Glaucoma

Jung-Un Jang,Joo-Hyung Choi,Yoon-Jung Choy,Koon-Ja Lee 대한시과학회 2021 대한시과학회지 Vol.23 No.3

목적 : 본 연구는 정상 안압 녹내장(NTG) 환자에서 양안시 기능을 평가하고자 한다. 방법 : 대상자 총 64명 중 안과에 내원하여 전문의에게 정상 안압 녹내장 진단을 받은 환자 정상 안압 녹내장 41명과 정상안 26명을 대상으로 하였다. 시야검사, 안압검사, 망막신경섬유층 두께 측정을 시행하였으며, 양안 시 기능 평가를 위해 사위각, 폭주근점검사, 티티무스와 TNO 입체시 검사를 시행하였다. 검사결과는 SPSS 22.0을 이용하여 분석하였으며 양안시 스크리닝과 입체시 기능을 분석하기 위해 ROC 곡선을 이용하여 분석하였다. 결과 : 정상안압 녹내장군에서 망막신경섬유층 두께와 남아있는 시야가 감소하였다. 원근거리 폭주여력은 정상 안압 녹내장군에서 정상군보다 높게 나타났다. 티티무스 입체시는 정상안압 녹내장군에서 102.36±4.40"이며 정상군에서는 44.61±1.85"으로 나타났으며, TNO 입체시는 정상안압 녹내장군에서 231.97±30.96"이며 정상군에서는 89.42±12.02"으로 나타났다. ROC 곡선은 티티무스와 TNO 입체시 검사에서 각각 0.797과 0.807로 나타 났고, 민감도와 특이도는 티티무스 입체시 검사에서 각각 0.737, 0.731, TNO 입체시 검사에서는 각각 0.500, 0.115로 나타났다. 결론 : 티티무스 입체시검사는 정상 안압 녹내장 선별에 유용할 것으로 사료된다. Purpose : This study aims to describe the binocular visual function alterations in patients with normal tension glaucoma (NTG). Methods : Of the patients who went to the ophthalmologist and were diagnosed, a total of 67 subjects of which 41 were classified as NTG, 26 non-glaucoma patients (control group) were participated. Standard visual field test, intra ocular pressure (IOP) measurement and retinal nerve fiber layer (RNFL) obsevation were performed. Also examined with binocular tests consisting of the measurement of phoria angles, near point of convergence (NPC), stereo acuity according to Titmus and TNO stereo tests. All measurements among groups were statistically compared with the SPSS 22.0 and ROC curves were plotted to describe the screening ability of binocular and stereopsis values. Results : NTG subjects showed decreased RNFL and visual field index. In far and near vision, NTG subjects were worse compared to in the control group except for fusional reserve. In Titmus test, NTG subjects exhibited stereo acuity of 102.36±14.40" whereas control group exhibited 44.61±1.85". In TNO test showed 231.97±30.96" for the NTG and 89.42±12.02" for the control group. The area under ROC for Titmus and TNO stereo test were 0.797 and 0.807. The sensitivity, specificity of Titmus stereo test were 0.737 and 0.731, and those of TNO stereo test were 0.500 and 0.115. Conclusion : Titmus stereo acuity could be used as the gold standard for screening tools for NTG.

The Change of Accommodative Functions by Difference Density and Color

Jung Un Jang 대한시과학회 2018 대한시과학회지 Vol.20 No.4

목적: 본 연구에서는 착색렌즈 농도와 색상에 따라 눈의 조절기능에 변화가 있는지 알아보고자 하였다. 방법: 연구대상자는 폭주값이 정상, 안위이상과 색각이상, 안질환이 없으며, 안과관련 수술 경험이 없는 20대 남녀 대학생 31명을 대상으로 무착색렌즈와 50%, 80%로 농도로 착색된 gray, blue, brown렌즈를 착용하고 조절기능을 측정하였다. 조절기능검사는 조절력, 조절효율, 양성·음성 상대조절검사 및 조절래그검사를 시행하였다. 결과: 본 연구 대상자들은 착색렌즈를 착용 하였을 때 조절력과 조절래그가증가하였으며, 음성상대조절력은 무착색렌즈 착용 시 보다 착색렌즈 착용하였을 때 양안, 단안, 좌안에서 증가하였다. 양성상대조절력은 blue 50%착용 시 크게 나타났다. 또한, 착색렌즈를 착용 하였을 때 조절용이성은 증가하였으나, 착색렌즈의 농도가 증가함에 따라 조절용이성은 감소하였다. 결론: 착색렌즈의 농도에 따라 조절기능의 변화가 나타나므로 착색렌즈 농도 및 색상 선택 시 작업거리, 착색렌즈 착용 환경 등을 고려하여 선택해야 할 것으로 사료된다. Purpose : This study was to investigate the change of accommodative functions by different color density and color of colored lenses. Methods : Participant had a normal NPC and no dyschromatopsia, phoria and eye disease, also had no histories of eye surgery in 31 students of university. Their accommodative functions were measured according to 50%, 80% density of the gray, blue, brown lens and non-colored lenses. Tests of accommodative functions performed include amplitude of accommodation, accommodative facility, relative accommodation, and accommodative lag. Results : The amplitude of accommodation and accommodation lag were increased when wearing the colored lens. Negative relative accommodation was more increased when wearing the colored lens than achromatic. Positive relative accommodation increased when wearing the blue color lens density by 50%. Also, accommodation facility increased when wearing the colored lens, but, as the density of the color increased, the accommodation facility was decreased. Conclusion : As since the accommodation function changes according to density of the colored lenses, working distance and environment of the wearing colored lens should be considered when selecting density and color of colored lenses.

Quality of Life and VFQ-25 in Elderly People over 65 and Adults under 65

Jung-Un Jang 대한시과학회 2020 대한시과학회지 Vol.22 No.4

목적 : 본 연구는 65세 미만 성인과 65세 이상 노인에서 삶의 질과 시각기능(VFQ-25)을 파악하기 위한 연구이다. 방법 : 복지관 방문자 79명을 대상으로 한국판 삶의 질 설문지와 시각기능 설문(NEI-VFQ-25)을 사용하여 연 령에 따른 시각기능과 삶의 질에 대한 독립표본 T-검증과 상관분석을 실시하였다. 결과 : 성인의 전체 삶의 질 점수는 3.33±0.65점이며, 노인의 전체 삶의 질 점수가3.59±0.73점으로 높게 나 타났다. 성인의 전체 시각기능의 점수는 67.56±14.46점이며, 노인의 전체 시각기능의 점수는 72.63±15.48로 노인이 성인보다 높게 나타났다. 연령과 삶의 질 간의 사회적 요인에서 유의한 차이를 보였으며 연령과 시각기능 에서는 시력과 관련된 역할의 제한에서만 유의한 차이가 나타났다. 두 요인에서 모두 노인이 성인보다 높게 나타 났다. 성인의 시각적 기능과 개인의 삶의 질의 관계는 높은 것으로 나타난 반면 노인의 시각적 기능과 개인의 삶 의 질은 관계성은 낮은 것으로 나타났다. 결론 : 시각기능과 삶의 질은 연령과 긍정적인 관계가 있는 것을 확인하였다. 이는 개인의 긍정적 삶의 질을 함 양하기 위해서는 단순 개인의 특성만을 강조하는 것보다는 문화 환경적 요소와 주기적인 시각기능 검사가 고려되 어야 할 필요성이 있다. Purpose : This study is designed to identify the quality of life and visual functions (VFQ-25) in adults under and over 65. Methods : Independent sample T-test and correlation analysis of visual function and quality of life according to age were conducted with the Korean version of the quality of life questionnaire and visual function questionnaire (NEI-VFQ-25) for 79 visitors to the welfare center. Results : The overall quality of life score of adults was 3.33±0.65 and the overall quality of life score of the elderly was 3.59±0.73. The adult's overall visual function score is 67.56±14.46, and the elderly's total visual function score was 72.63±15.48, indicating that the elderly are higher than adults in the overall visual function score. There were significant differences in social factors between age and quality of life, and only significant differences in age and visual functions were found in limited roles related to vision. Both factors showed that the elderly were higher than adults. The relationship between the visual function of adults and the quality of individual life was shown high, while the visual function of the elderly and the quality of individual life were low in relationship. Conclusion : It was identified that visual function and quality of life had a positive relationship with age. In order to foster an individual's positive quality of life, it is necessary to consider cultural and environmental factors and periodic visual function tests rather than simply emphasizing individual characteristics.

Effect of Heme oxygenase-1 inducer and inhibitor on BN Rat Choroidal Neovascularization Model

Jang Jung Un,Lee Sook Hee,Doo Ha Yoog,Yang Yun Sik 대한시과학회 2006 대한시과학회지 Vol.8 No.1

본 논문의 연구목적은 Choroidal neovascularization (맥락막 신생혈관) 모텔에서 HO-1 발현제와 억제재의 영향을 알아보고자 한다. 30마리의 Brown Norway rat을 각각 10마리씩 세 그룹, Hemin treated group, SnPP treated group, Contorl group으 로 나누어서 실험을 진행하였다. Hemin treat group은 10μmol/kg hemin(Frontier Scientific Inc. USA) 을 SnPP treat group은 10 μmol/kg SnPP(Frontier Scientific Inc. USA)을 laser 시술 2 일에서 14 일까지 복강내 주사하였고 Control군은 0.5 mß씩 식 염 수를 주사하였다. 14 일 후 안저사진촬영과 형광안저촬영을 실시하였다. SnPP treated group에서 Hemin treated group보다 더 많은 선생혈관이 생성되었다. Hemin treated group에서는 맥락막 신생혈관 형성의 정도가 정상대조군에 비교하여 저하됨을 알 수 있었다. 본 연구의 결과 HO-1 의 inducer 인 Hemin 이 맥락막의 신생혈관 억제에 영향을 미치는 것으로 보여진다. The purpose of this study to investigate the effects of HO-1 inducer and HO-1 inhibitor in treating Brown Norway rat Choroidal neovascularization model. Thirty male Brown Norway rat divided each ten; 10 were served as HO-1 inducer, Hemin (Hemin treated group) other 10 were treated with an HO-1 inhibitor, SnPP(SnPP treated group) and the 10 remnant was control group. Rats were given either 10 ttrnol/kg hemin(Frontier Scientific Inc. USA) or 10 μrnol/kg SnPP(Frontier Scientific Inc. USA) by intraperitoneal injection once daily from 2 to 14days after laser. Control group was injected in each rat was 0.5 rnQ each day. 14days later, fundus photography and fluorescein angiography (F A) were perforrned. Masked F A grading lesion a small in Hemin πeated group. But SnPP treated group were creation new vessel. Our result suggest that endogenous HO-1 plays an important protective role in Choroidal neovascularization and that target induction of HO-1 over expression may present a new therapy for the treatment of Choroida neovascular lzatlOn

Comparison of Visual Acuity and Pupil Size when Wearing the Circle Contact Lens After Refractive Surgery Depend on Illumination

Jung Un Jang 대한시과학회 2017 대한시과학회지 Vol.19 No.4

목적: 본 연구는 시력교정술 후 써클 콘택트렌즈 착용 시 조도 환경에 따른 동공크기 및 시력의 차이에 대해 알아보고자 하였다. 방법: 시력교정술을 받지 않은 28안과 시력교정술을 받은 26안에 두 종류의 무도수의 써클 콘택트렌즈를 각각 착용시키고, 동공크기 및 시력을 측정하였다. 결과: 시력교정술을 받지 않은(Control group)은 써클 콘택트렌즈 착용 전 밝은 상태에서의 Log MAR시 력은 렌즈 A를 착용 하였을 때 보다 감소하였으며, 시력교정술을 받은 군에서의 써클 콘택트렌즈 착용 전 Log MAR시력은 착용 후 밝은 상태에서 렌즈 A, B를 착용하였을 때 보다 높게 나타났다. 렌즈 B를 착용 하 였을 때의 Log MAR시력이 렌즈 A를 착용 하였을 때 보다 낮게 나타났다. 밝은 상태에서 대비감도 3, 6 cpd의 공간주파수에 두 그룹간의 유의한 차이가 나타났다. 써클 콘택트렌즈 A를 착용하였을 경우 시력교정 술을 받은 군의 대비감도가 시력교정술을 받지 않은 대조군(Control Group)의 대비감도 보다 낮게 측정되 었으며, 시력교정술을 받지 않은 대조군(Control group)이 시력교정술을 받은 군 보다 밝은, 어두운 상태에 서의 대비감도가 높게 나타났다. 결론: 시력교정술을 받은 사람이 써클 콘택트렌즈 착용 시 대비감도 변화가 나타날 수 있으니 이에 대한 이해 및 착용자의 고려가 필요할 것으로 사료된다. Purpose: This study was designed to investigate the comparison refractive surgery group with circle contact lenses wear on pupil size and visual acuity depend on illumination. Methods: The visual acuity and pupil size were measured by non-refractive surgery group (28 eyes) and refractive surgery group (26 eyes) applied two different plano circle contact lenses. Results: Log MAR visual acuity measured low by when wearing circle contact lens type A more than before wearing the circle contact lens at photopic condition in control group. And It's also showed high values of Log MAR visual acuity when before wearing the circle contact lens. Futhermore, when wearing the circle contact lens type B was showed low values of Log MAR visual acuity than wearing the circle contact lens type A. Contrast sensitivity at photopic condition of spatial frequency of 3,6 were significant difference change between two groups. Contrast sensitivity were reduced in case of wearing the type A of circle contact lens on the eyes after refractive surgery than control group. And it's showed high value of contrast sensitivity of without refractive surgery (Control group) than refractive surgery at photopic, mesopic condition. Conclusions: It's suggest to understanding of significant to possible to change of the contrast condition in the case of circle contact lens wearing after refractive surgery.