[논문]Operational Characteristics of CO2 Laser Adopted by Superposing-Discharge

Hee-Je Kim,Hyun-Ju Chung,Byoung-Dae Min,Jong-Han Joung,Sung- lun Park 釜山大學校生産技術硏究所 2003 生産技術硏究所論文集 Vol.62 No.-

오늘날 현저한 CO2 레이저의 응용 추세에 발맞추어 보다 다양한 형태의 출력 제어 기술이 대두되고 있다. 본연구에서는multi-Pulse Superposing-Discharge 기술을 이용하여 다양한형태의 CO2 레이저의 펄스를 성형 하였다. 펄스 성형을 위한 방법으로 PIC one-chip microprocessor를 이용하여 삼중 PFN 모률의 SCR을 각각 고유의 지연시간을 가지도록 제어하였다. 실험에 사용된 삼중 PFN 모률의 전원 회로는 각각 캐패시터 인덕터,SCR,고압 펄스 트랜스 그리고 고압 트랜스 2차측에 브릿지 정류기로 구성 하였다. 고압 펼스 트랜스의 1차측을 제어하므로서 PFN 모률의 동작을 저 전압에서 수행 할 수 있다. 트랜스의 2차측에 연결된 전파 정류기는 펄스 에너지를 부하에 지속적으로 전달한다. 본 연구에서는 삼중 PFN 모률의 각각의 SCR을 다른 시간 가격을 두고 트리거 하므로서 다양한 Long pulse shaping을 실현하였다. 또한 약 250-1000μs 의 주기를 가지는 다양한 펄스형 레이저 빔을 얻었다.

2003년 국내 중증급성호흡기증후군 진료 현황 및 문제점 분석

이진수,김은실,정문현,백제중,정선화,안주희,최영화,이선희,고철우,김성범,김민자,박승철,기현균,송재훈,최상호,김양수,이상오,조용균,박영훈,정숙인,김연숙,이흥범,손창희,장성희,정희진,김우주 대한감염학회 2004 감염과 화학요법 Vol.36 No.3

목적 : 2002년 말 중국에서 SARS가 발생한 이후 국내에서도 2003년 10월까지 총 3명의 추정환자, 17명의 의심환자가 보고되었다. 향후 추가적인 SARS의 유행이 우려되는 상황에서, 그간의 SARS 환자 진료에 있어서의 실질적인 준비사항, 진료 현황 등에 대한 조사를 통해 문제점을 파악하여, 향후 더 나은 대비가 될 수 있도록 개선점을 제시하고자 하였다. 재료 및 방법 : SARS로 의심되는 환자를 진료 경험이 있는 병원의료진을 대상으로 2003년 10월에 설문조사를 실시하였다. 설문에는 SARS 환자 진료 시의 실질적인 조치, 진료 현황, 병실, 응급실 및 외래에서의 격리 시설과 준비사항, 보건당국의 관리와 지원에 관한 사항을 포함하였다. 결과 : 대상이 되는 22개 병원 중 17개(17/22, 77.2%) 병원이 설문에 응하였다. SARS 환자를 위한 격리실은 응급실, 외래, 일반병실 및 중환자실에서 각각 9개(9/17, 52.9%), 5개(5/17, 29.4%), 15개(15/16, 93.7%), 4개(4/16, 25%) 병원에서 음압처리가 되어있지 않은 일인실 혹은 다인실이 사용되었고, 1개(1/16, 6.3%) 병원에서만 일반병실에서 음압격리실이 운영되었다. 입원환자의 진찰 시 개인보호구의 착용은 거의 모든 의료기관에서 이루어졌다. 보건당국에서 SARS지정병원의 시설 등을 사전에 확인한 곳은 1곳(1/12, 8.3%)이였고, 14개 병원(14/15, 93.3%)에서는 보건당국에 의뢰한 검사결과를 통하 받지 못하였다. 결론 : 의료기관에서 SARS 환자용 격리실뿐만 아니라 기존의 격리실 설비 등이 미흡하였으며, 특히 중환자실 및 외래의 준비가 더욱 부족하였다. 보건당국의 의료기관에 대한 종합적인 지원이 부족하였고, 병원과의 원활한 연계가 잘 이루어지지 않았다. SARS 만이 아닌 격리를 필요로 하는 질환의 적절한 진료를 위해 향후 병원 시설의 정비와 정부차원에서의 보다 구체적이고 실질적인 대책마련이 필요하다. Background : There was an worldwide outbreak of the Severe Acute Respiratory Syndrome (SARS) originated from China in late 2002. During that period three cases of suspected SARS and 17 cases of probable SARS were reported in Korea. With the concerns about the reemergence of SARS-coV transmission, it is important to be prepared for any possibility. So, this study is aimed to analysis the past measures in managing SARS and propose the amendatory plans to improve the preparedness. Materials & Methods : Questionnaires were collected among clinicians with any experience in managing the probable or suspected SARS cases in Oct. 2003. 17 out of 22 hospitals responded to the questionnaire. The contents in the questionnaire were practical activities, personal equipments, response plans, isolation facilities in emergency centers, outpatient clinics, general wards and intensive care units, and relationship with the public health department. Results : The dedicated isolation rooms in emergency centers, outpatient clinics, general wards, and intensive care units were prepared in 9 (9/17, 52.9%), 5 (5/17, 29.4%), 15 (15/16, 93.7%), and 4 (4/16, 25.0%) hospitals, respectively. Except for one hospital that newly made negative pressure room for SARS, single or multi-bed rooms without airborne infection control were used in all the other hospitals. The personal precaution principles were kept quite well in general wards. Before the designation of SARS hospital by the public health department prior evalution to see if the hospital was suitable for managing SARS was conducted in only 1 (1/12, 8.3%) hospital. The results of laboratory diagnosis were reported back in 1 (1/15, 6.6%) hospital. Conclusions : The isolation facilities which can control airborne infection were almost deficient not only for SARS but also for other respiratory transmissible diseases. For the infection control of transmissible diseases including SARS, more investment is needed on medical facilities and comprehensive support from the public health department required.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

毒草 給與가 돼지의 增體, 屠體品質 및 經濟性에 미치는 影響

鄭鉉承 진주산업대학교 1985 論文集 Vol.23 No.-

本 試驗은 養豚不況期에 靑草를 給與하므로서 維持飼養을 通한 農家所得에 미치는 效果를 究明코저 本 大學에서 生産한 同腹離乳存豚8頭(??4??4)를 配合飼料單飼區에 2類, 靑草給與區에 6類를 供試하여 1985年 7月 3日 ~同年 11月 18日(138日間)에 걸쳐 增體量, 飼料攝取量, 飼料效率, 血液像, 屠體品質, 生豚販賣價格과 屠肉販賣價格比較, 存豚販賣時와 肥育豚生産販賣價格比較및 經濟性分析 等을 調査한바 다음과 같은 結果를 얻었다. 1. 日當增體量은 靑草給與區(0.55~0.58㎏)가 對照區(0.48㎏)보다 높았으나 有意差는 없었다. 2. 飼料攝取量은 靑草給與區(269~282㎏)가 對照區(263㎏)보다 若干 높게 나타났다. 3. 飼料效率은 靑草給與區가 (3.4~3.45) 對照區(3.95)보다 높게 나타났다. 4. 靑草給與를 하므로서 體重 1㎏ 增體當 飼料費가 對照區보다 108~182원이 節減되었다. 5. 供試豚의 血液像은 異狀이 없었다. 6. 背脂階層은 靑草給與區(1.0~1.1)가 對照區(1.3)보다 減少하였다. 7. 屠體形質에 있어서 生體重은 靑草給與를 많이 할수록 높게 나타났으나 枝肉率과 精肉率은 配合飼料만 먹인 區가 높게 나타났다. 8. 生豚販賣價格은 對照區보다 試驗區에서 靑草生産및 給與人件費를 除外하였을 때 頭當 10,000원의 純利益을 나타내었고 屠肉販賣價格은 手數料除外時에 生豚販賣價格보다 10,000원의 純利益이 나타나므로서 屠肉販賣時에는 頭當 20,000원의 純利益을 나타내었다. 9. 仔豚販賣價格(30,000)보다 肥肉豚生産販賣價格(150,000원)이 仔豚費와 飼料費(40,000원)를 除外하였을때 80,000원의 利益이 나타나 自家生産仔豚을 利用할때 購入時보다 30,000원의 純利益을 나타내었다. 以上의 結果를 보아서 遊休山地와 遊休耕作地에 草地造成과 飼料作物栽培및 飼料木開發等으로 自給飼料를 利用하므로 飼料費節減, 飼料效率改善, 增體效果및 良質肉生産에 寄與할 수 있을 것으로 思料되며 不況期 養豚의 問題點을 解決할 수 있는 一 方案이 될 것으로 思料된다. This experiment was conducted to investigate the effect of green fodder feeding on body weight gain, carass quality and economical efficiency on the basis of the data obtained from the 8 pigs of the same litter allocated to 2 pigs in the only formula feed group and 6 pigs in the formula feed plus green fodder group form the third of july, 1985 to the 18th of November, 1985(138days) at Chinju Agricultral& Forestry Technical College. The results obtained were as follows: Daily body weight, feed consumption and feed efficiency were higher in the green fodder group than in the only formula feed group and nonsignicant differences(p>0.05)between two groups. Feed cost per 1 ㎏ weight gain was cut down to about 108-182 won by feeding the green fodder. The blood picture was normal in the two groups and the fat thickness was thinner in the green fodder group than in the only formula feed group. Though carcass and meat percentage in carcass quality were higher in the formula feed group than in the green fodder group, the selling price of live weight had a net gain of 10,000 won by feeding green fodder and of carcass, 20,000 won expect the green fodder production and labor cost. It had more a net gain of 20,000 won by selling finishing pig than pig at weaning(56days). It was suggested from the results obtained as above that it seem to contribute to curtailment of feed cost, reformation of feet efficiency, body weight effect and high grade meat production by utilizing selfsupplying feed by pasture establishment, forage crops clutivation and forage tree development in the idle mountains and cultivated land, and to slightly solve problems of swine farming in the depression season.

소아 질환에 대한 통계적 고찰

정용헌,이건수,변상현 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.2

Statistical analysis on out-patients from Apr. 1990 to Mar. 1991 and in-patients from Jan. 1990 to Dec. 1990 was done to assess the general patterns and trends of childhood diseases at Chungnam National University Hospital. 1. Total numbers of outpatients were 42408, of which 42.5% was in department of Pediatrics. According to the observation on patient distribution by month, the common were Jan. and Aug. 2. The most frequent age group of in-patients was 1-6 years of age, the least was under the 1 month, but in pediatrics the most frequent was under the 1 month. 3. According to numbers of in-patients by department, more than half was Pediatrics(52.7%) and followed by Pediatric ENT, Plastic surgery, Ophthalmology, Orthopedic surgery and General surgery in order. 4. The total numbers of in-patients were 2890, of which 1876 were male and 1014 were female. The ratio of male to female was 1.85:1. 5. According to the duration of admission, the most common period was of 8-l4days(41.9%), and mostly were loss than 28days(94.6%). 6. Average duration of admission was 12.3 days and the longest was Rehabilitation mcdicine(49.1 days), the shortest was Ophthalmolog,(5.0days). 7. The most common involved organ of in-patients in Pediatrics was neonate's, the next was respiratory's. 8. The most common disease was pneumonia in pediatrics, inguinal hernia in general surgery, pneumothorax in chest surgery, fracture of bone in orthopedic surgery, brain contussion in neurosurgery, exotropia in ophthalmology, T & A in ENT, cryptorchidism in urology, cleft palate in plastic surgery, convulsive disorder in neurology, schizophrenia in psychiatrics, urticaria in dermatology, and fracture of mandible in oral and maxillofacial surgery.

智異山 大單位 緬羊牧場 開發의 必要性

鄭鉉丞 진주산업대학교 1976 論文集 Vol.14 No.-

The impotance of and major problems on the development of some large sheep farms on the Mt. Chir were discussed on the bases of the author's experiences on this subject. through 9 years. 1. Sheep production in the high mountaineous area has a great importance in the view of economical food and wool production with the increased land productivity and utillization of natural resources. 2. The major problems on the developing sheep farms on the Mt. Chiri were considered as follows: 1) Livestock industries are successful only by the longterm developing schedu1e. 2) Sheep production in Korea in general, is one of the underdeveloped livestock industries. 3) Any agricultural industry on the high mountaineous area has much disadvantage in traffical and social conditions. 3. The natura1 conditions were considered good for sheep farming and it was recommended for the succseeful development of sheep farms on the Mt. Chiri that the Government grant a long-term loan of 1ower interest and improve the traffical conditions, the scientists be trained more widely and intensively on sheep farming and the large enterprises have more interests in the development of national land resources.

지리산 면양목장 조성에 관한 연구 : Ⅰ보. 면양목장 조성 및 면양사육 단지화 조성을 위한 기초조사 Ⅰ. Fundamental Survey of Resources for the Development of Sheep Range and Sheep Farm Grouping

정현승,강봉태 진주산업대학교 1970 論文集 Vol.4 No.-

This survey reports the availability of the various resources such as geography, meteology, traffic condition, soil property, labor resource, pasture distribution and water resource, for the development of sheep range and sheep-farm group, on the first step to the three-year plan in an area around the Forestry Experiment Station of Chinju Agricultural and Forestry Junior Teachnical College in Mt. Chiri. 1. The geographical conditions of the region found to be fit for the establishment of sheep range were as follows; longitude:127˚44'east,latitude:35˚22'north,elevation:600-900m above marine surface level, slope:5-25˚, total area: 280 ha, and administrative district: from high level flats to Yeo-gok and Dusuk village, Yupyung-ri, Samjang-myun, Sanchungkun, Kyung Sang Nam Do, Korea. Especially, eighty seven farm households and Karangip primary school distriduted around this region were found to be the reasonable resources for the development of sheep farm group in this region. 2. The soil of the area was composed of most of sand-loam with PH 5.3∼5.8, 2-5% of grit and 13.3% of humus (4.6-19.3%) among 30∼50㎝ depth of surface soil. These fertile soil properties were found to be fit for the development of pasture. 3. The meteological records of this region were found as follows: frosty period: from October 16 to April 22, yearly mean air temperature: 9.2℃ , ranging from 26.6℃ in August to (-)12 in January, annual rainfall: 2,346mm, yearly mean wind velocity: 6.2m/sec, direction of the wind: north-west in winter and south-east in summer. According to the above results from only one-year observation, the meteological conditions of this region were similar to those of Dae-Kwan Ryung area and were estimated to be favorable for sheep raising. 4. In this region 35 species of wild grasses were prosperous. The green yield of the grasses averaged 1,584㎏ per 10a and 0.87a was required for grazing a sheep. Therefore, it was estimated that about 3,000 heads of sheep would be well raised in this region. The fact that about 30 percent of Mt. Chiri area is available for sheep pasture suggested that 400,000㎏ of wool, or 250,000,000 won in price(equivalent to 1/10 of the total wool imported in 1967)could be gained from grazing about 100,000 heads of sheep in the whole area of Mt. Chiri, 54,000 ha. 5. Sufficient water resources, conclusive of mooring by the farmers around this region, irrigation water, underground water and especially the pond situated in high level flats were found to be available and the quality of water was satisfactory for watering sheep. 6. Concerning the traffic situation of this region, the construction of 1.5㎞ of road to Dusuk village (with 200m of bridge) and three 2㎞ range path from Dusuk village were required. However, such traffic problems are not serious because the sheep farming requires the road only for disposal of wool produced once a year. 7. From the managment survey for 87 farms around this area, it was found that each farm had 1,019.6 hours of unemployed labour per year, which was sufficient for raising 60 heads of sheep. So it could be estimated. that potential labour enough for raising 5,200 heads of sheep was reserved in this area. Moreover, the Karangip primary school boys are available as a good resource of labour for sheep grazing. The great deal of by-products of sericulture and potato-farming, which were the major industries in this region, was available for sheep raising.

煉炭灰魚汁 吸着飼料의 添加가 돼지의 血液像에 미치는 영향

鄭鉉丞,李乙熙,吳錫斗,宋瑛敏 진주산업대학교 농업기술연구소 1989 農業技術硏究所報 Vol.2 No.-

煉炭灰魚汁 吸着飼料 添加가 돼지의 血液像에 미치는 영향을 조사하였다. 赤血球, 血色素量, 赤血球容積 및 血液球數는 무처리구에서 높은 편이고, 平均赤血球容積, 平均赤血球血色素量, 平均赤血球血色素濃度는 煉炭灰魚汁 吸着飼料 添加區에서 약간 높았으나, 白血球鑑別計數를 포함한 이들 모든 血液像은 정상치 범위내였다. The objective of this experiment is to investigate the effects of fish-soluble-absorbed-briquette-ash-added feed upon the hematological value of swine. RBC, hemoglobin, hematocrit and WBC were higher in the non-treated group. Mean corpuscular volume, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration were a little higher in the treated group. And all the above hematological values including differential count were within the normal range.

척추 유합술에서 자가 이식골과 동종 이식골의 비교 : 증례보고 A Case Report

정필현,김태훈,채동주,문상호,박윤근,배호균,이재학 東國大學校 1999 東國論叢 Vol.38 No.-

척추 유합술에 있어서 자가 골 이식이 가장 좋은 방법으로 알려져 있지만 수술 시간과 실혈량이 늘어나고 공여부의 통증 및 감염의 위험등 단점으로 동종 골 이식도 많이 사용되어지고 있다. 이러한 동종 이식골의 효용성에 대해서 많은 논란이 있어온 것은 사실이나 여러 변수들, 즉 나이, 성별, 흡연력, 수술의 종류등에 따른 영향을 완전히 배제시키지 못하여 순전히 동종 이식골과 자가 이식골간의 비교가 어려웠다. 저자들은 척추관 협착증으로 후방 감압술 및 후방 기기 고정술, 후외방 골 이식술을 받은 환자에게서 우측은 자가 이식골, 좌측은 동종이식골로 골 이식을 시행한 후 4년 추시에서 자가 골 이식한 부위는 견고한 골유합 소견을 보였으나 동종골 이식 부위는 이식 골이 모두 흡수되는 소견을 체험하여 같은 조건하에서 자가 이식골이 동종 이식골보다 골유합체의 형성에 있어서 더 우수하다고 생각한다. Posterior decompression, spinal instrumentation and bone grafting are the standard operative treatment method of spinal stenosis and other low back disorders. Although autograft bone is considered the standard in performing fusion of the bone, allografts are recommended as an alternative bone graft agent becaue of the lack of complications at the donor site such as infection, increased blood loss and prolonged operative time Autografts have the other limitations because of inadequate quality and quantity. Many investigators have compared autografts and allografts in posterior spinal fusion, and there are proponents as well as opponents of allograft use. Numerous factors are thought to affect fusion, including age, sex, nutritional status, associated disease, type of fusion, length of fusion, types of instrumentation and smoking status. The validity of comparison studies between allografts and autografts is questionable when these variables are not controlled. We describe a man who had a spinal stenosis at the level of L4-5 and L5-S1. He was operated with posterior decompression, spinal instrumentation and underwent a posterolateral bone graft, comparing autografts and allografts in the same patient. At 4-year follow up, autografts have a solid union but allografts are resorbed completely.

통일벼 收穫後 再生 靑刈 볏짚의 租飼料 利用에 關한 硏究 : 第Ⅰ報 : 靑刈 收量 및 成分 調査 Ⅰ. On the green yield and chemical composition of the straw

鄭鉉丞,尹東根 진주산업대학교 1975 論文集 Vol.13 No.-

本 調査는 통일벼 收穫後 再生 靑刈 볏짚의 粗飼料로서의 利用性을 究明하고저 9월 27일 벼收穫後, 10월 18일과 28일, 2回 刈取한 再生 靑刈 볏짚 收穫量과 成分含量을 調査한 바 다음과 같은 結果를 얻었다. 1. 10a當 통일벼 收穫後 再生 靑刈 볏짚의 生産量은 150kg 程度였다. 2. 통일벼 收穫後 再生 볏짚의 成分 含量은 1975年 10월 18일 刈取한 것이 Crude protein 1.56%, Crud-fat 2.12%, Crude fiber 20.26%, Crude ash 15.25%, N.F.E 54.2%이었다. 3. 1975年 10월 28일 刈取한 것은 Crude protein 1.88%, Crude fat 2.61%, Crude fiber 18.45%, Crude ash 16.02%, N.F.E 55.33%이었다. The green yield and chemical composition of Tong-il rice straw which regrew after harvest were determined. No fertilizer was applied for regrowth of the rice stubble. The harvesting date of rice was September 27 and the cutting dates were October 18 and 28, 1975. The results obtained were as follows: 1. The green yield of the rice straw which regrew up to October 18 and 28 after harvest averaged 165kg/10a and 162kg/10a, respectively. 2. The chemical composition of the green straw cut on October 18 was determined as follows: 1.50% crude protein, 2.12% crude fat, 20.26% crude fiber, 15.25% crude ash and 54.24% nitrogen free extracts. 3. The chemical cpmposition of the green straw cut on October 28 was determined as follows: 1.88% crude protein, 2.61% crude fat, 18.45% crude ash and 55.33% nitrogen free extracts.