都市 및 農村의 腸內 寄生蟲 感染에 關한 比較硏究 : 光州市 및 羅州郡 鳳凰面 地域을 中心으로

文宰奎,金宗中,文正錫,鄭駐炫 조선대학교 1981 The Medical Journal of Chosun University Vol.6 No.-

From the 1st of March to the 30th of April, 1979, this study on intestinal helminthic infections was carried ont on thc inhabitants, in Gwang-ju City and thc Bong-hwang Myun, Na-ju Gun area. The methods employed were Kato's cellophane thick smear technique in 603 cases (Gwang-ju City : 310, Bong-hwang Myun : 293) for the prevalence rate of various intestinal helminths ; the Scotch tape anal swab techniquu in 459 cases (Gwang-ju City : 223, Bong-hwang Myun : 236) for the prevalence rate of Enterobius vermicularis and Stoll's dilution egg-counting technique in all positive cases for the evaluation of the worm burden of some helminths. The results are as follows : 1. The positive rate of intestinal helminths of any kin was 80.1%(male: 75.0%, female : 85.1%) in Gwang-ju City ahd 92.6% (male : 90.6%, female : 94.5%) in the Bong-hwang Myun area by the cellophane thick smear technique. 2. The prevalence rate of Ascaris lumbricoides was 48.7% (male : 43.4:%, female : 52.9%, in Gwanag-ju City and 52.6%(rnale : 63.3%, female : 42.9%)in the Bong-hwang Myun area. 3. The prevalenec rate of Trichuris trichiura was 66.5%(male : 58.8%, female : 74.1%) in Gwang-ju City and 72.6%(male : 69.8%, female : 75.3%)in the Bong-hwang Myun. The highest prevalence rateamong helminths was in this area. 4. The prevalence rate of hookworm was 5.0%(male : 3.7%, female : 6.3%) in Gwang-ju City and 9.6%(male : 7.2%, female : 11.7%) in the Bong-hwang Myun area. 5. The prevalcncc raLe of Trichostrongylus orientalis was 4.8%(male : 4.4%., female : 5.2%) in Gwang-ju City and 6.2%(male : 7.2%, female : 5.2%) in the Bong-hwang Myun area. 6. The prevalence tate of Clonorchis sinensis was 1.4% (male : 2.2%, female : 0.6%.) in Gwang-ju City and 2.4%(male : 4.3%, female : 0.4%) in the Bong-hwang Myun area. It is higher in males than in femaless in the surveyed areas. 7. Taenia spp. was not foun in Gwang-.ju City and only 2 cases were found in the Bong-hwang Myun area. 8. The prevalence rate of Enterobious vermicularis was 29.1 %(male : 29.3%, female : 28.9%) in Gwang jn City and 31.3% (male : 29.5%, female : 33.1%) in the Bong-hwang Myun area by the Scotch tape anal technique. 9. The mean E.P.G. in Gwang-ju City be Stoll's dilution egg-counting technique was Ascaris lumbricoidis : 6,465 ; Trichuris trichiura : 600 : Hookworm : 392 ; Trichostrongylus orientalis : 256; and Clonorchis sinesis : 741. 10. The mean E.P.G. in the Bonag-hwang Myun area by the Stoll's dilution egg-counting technique wa s Ascaris lumbricoides : 7,231; Trichuris trichiura : 820 ; Hookworm : 592 ; Trichostrongylus orientalis : 341; and Clonorchis sinensis : 10,851.

[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.

인천 논현동 일대 염습지의 식물다양성과 보존방안

정주영,이만우,조강현,최병희 한국환경생물학회 2000 환경생물 : 환경생물학회지 Vol.18 No.3

해안생태공원 조성이 추진중인 인천광역시 논현동 일대 염습지의 식물상 및 식생을 1999년 6월부터 2000년 6월까지 조사하였다. 이 지역에는 소래포구의 조간대를 따라 발달한 자연염습지와 함께 조수가 차단된 폐염전이 있다. 이 지역에서 14종의 염생식물이 조사되었는데, 그중 해홍나물이 가장 많이 분포하고 있었으며, 그밖에 퉁퉁마디, 비쑥, 갯개미취 등도 많이 관찰되었다. 폐염전에서 관찰된 염생식물의 종류는 자연염습지에서 조사된 것과 매우 유사하였다. 그러나, 폐염전과 자연염습지 사이의 제방지역은 염습지 보다 다양한 종이 자라고 있었는데, 귀화식물도 21종이 관찰되었다. 자연염습지의 식생은 해홍나물-비쑥군집과 해홍나물군집으로 구성되어져 있으며 지역에 따른 큰 차이는 없었다. 한편, 폐염전에서는 해홍나물-퉁퉁마디, 나문재-해홍나물, 갈대-애기부들, 갈대군집 등 다양한 군집이 조사되었다. 식생상관과 종다양도에 기초하여 조사지역을 식생양호지역, 인간활동에 따른 교란지역, 식물고사지역 등의 세 구역으로 나눌 수 있었으며, 해안생태공원 조성에 따른 각 구역의 보존대책을 제시하였다. The flora and vegetation of salt marsh region in Nonhyun-dong, Incheon were investigated from June 1999 to June 2000. The surveyed region includes the several abandoned salt farms and natural salt marshes developing along the intertidal zone at the stream of the Sorae Inlet, Yellow Sea and is going to be constructed a costal ecopark. In this survey 14 species of halophytes were collected in the region, among them Suaeda maritima is the most common one, Salicornia herbacea, Artemisia scoparnia and Aster tripolium are also observed popularly. The flora of the abandoned salt farms is very similar to that of the natural salt marshes. However, the bank areas between the abandoned salt farms and the natural salt marshes showed more richness of species diversity including 21 naturalized plants. The vegetations on the natural salt marshes are mainly composed of Suaeda maritima-Artemisia scoparnia and Suaeda maritima communities. On the other hand, various plant communities were investigated in the abandoned salt farms such as Suaeda maritima-Salicornia herbacea, Phragmites communis-Typha angustata, Suaeda asparagoides-Suaeda maritima and Phragmites communis communities. Based on the plant physiognomy and species diversity, the region can be divided into three types of area for conservation, that is, the area composed of well-developed vegetation, disturbed one by human activities and plant withering area. Futhermore, according to the construction of the costal ecopark in the region the conservation scheme for each area was discssed.

중첩 방전을 이용한 CO₂레이저의 동작 특성 : 다중펄스 중첩을 이용한 long 펄스형 CO₂레이저의 펄스 형상 제어 Pulse shape control of pulse CO₂laser using multiple-pulse superposition

정현주,김근용,정용호,정종한,송건주,김희제 부산대학교 생산기술연구소 2001 生産技術硏究所論文集 Vol.60 No.-

본 연구에서는 PIC 원 칩 마이크로 프로세서 기술을 접목시켜, 저전압 측에서 2단 또는 3단의 회로를 능동적으로 중첩시킴으로써, 다양한 펄스폭을 가지는 고전압의 펄스형상을 만들었다. 이렇게 만들어진 다양한 중첩펄스를 현재 산업용 및 의료용으로 많이 사용되고 있는 CO2 레이저에 적용하여 각 단의 스위치의 트리거 지연시간에 따른 레이저 빔의 출력 특성을 고찰하였다. 그 결과 다양한 펄스폭을 가지는 레이저 빔을 얻을수가 있었고 특히, 3단 중첩회로에서 스위칭 지연 시간을 변화시킴에 따라 얻어진 레이저 펄스폭은 최소 약 4ms였고 최대 약 10ms였다. In this study, a variable pulse length, high duty cycle Pulse Forming Network(PFN) is constructed by time sequence. The power supply for this experiment consists of three switching circuits. Each switching circuit uses 2 mesh PFN, a charging circuit, a HV leakage transformer, and bridge rectifier on each transformer secondary. The PFN elements operate at low voltage and drive the primary of HV leakage transformer. The secondary of the transformer has a full-wave rectifier, which passes the pulse energy to the load in a continuous sequence. We investigated laser pulse width of pulsed CO2 laser as various delay time among three switching circuits. As a result, we can obtain various laser pulse width from about 4 to 10ms.

고장식염수가 토끼 공장 점막 술잔세포의 미세구조에 미치는 영향

문정석,정윤영,장인엽,김종중,정주현,김흥중 대한해부학회 1995 Anatomy & Cell Biology Vol.28 No.3

Electric MPV 개발 연구 : Zero Emission, Recycle 개념을 적용 The Concept of Zero Emission, Recycle

정주현 홍익대학교 산업디자인연구소 1996 미술디자인 논문집 Vol.- No.1

In this thesis, absolutely first, you can find my suggestion that electric-powered-vehicle can be the method for the solution of environmental pollution from the petrolatum-fueled-engine. For the words 'environmental friendly' has been a worldwide issue in this age, especially, in the industrial of vehicle over the world. Every contents and developing prodesses in based on the above fact, so my purpose is the making styling for the fuctional, cute and beautiful electric vehicle that has the concept 'low emission or zero emission vehicle'. So future styling has been designed by me last year and that will be used the 2001 year's production car of Deawoo Motor Company, Korea. In the Chapter 1, there is the social and environmental background, method and, finally purpose of this study. In the Chapter 2, the purpose and process of development is proceeded with concrete examples. Above all, on the basis of the development status for low emission vehicles of worldwide car makers, the relative questions and respective improvements to be are raised. Engine development and quesions of fuel are analyzed. In the Chapter 3, the relation the vehicles used in this age and our environmental problem is raised. It is studied that the mechanism and structure of electric vehicles which are the substitution environment pollution, and the real prototype model developed by domestic and foreign car makers. It has studied that the trends of style, packaging and power generation of worldwide. On the basis of above factors, it has been developed that the concept, ideation, rendering, CAD drawing, package line drawing, clay model and a quarter scaled final model. The special fact of thes electric vehicle can be made to the three other models, van, pick-up and MPV(passengers car) on the base of one kind of aluminum space frame(ASF). In conclusion, to realize the electric vehicle being worldwide style and mechanic trends need more researches and further investment, especially in our country.

맥주맥 F_1세대의 조합능력 검정

정원복,오주성,황필성,김수동,서세정,현종내,김대호 東亞大學校 2002 東亞論叢 Vol.39 No.-

맥주맥의 이면교잡에 의한 F_1세대에 대한 조합능력을 검정한 결과를 요약하면 다음과 같다. 8개 형질에 대한 GCA, SCA, RCA효과를 검정한 바 조합능력은 전 형질에서 GCA, SCA, RCA가 모두 유의하였는데 간장, 수장, 망장, 간직경, 곡핍폭, 1수립수 1000립중은 GCA가 SCA보다 크고, 품종간 GCA효과는 진양보리가 간장에서 부(-)이고, 삼도보리가 수장·망장·간직경·1000립중에서, 사천6호가 망장과 간직경에서, 진광보리가 곡립장에서, 두산29호가 곡립폭·1수립수·1000립중에서 각각 정(+)으로 높았다. SCA효과에서 수장은 두산29호×두산8호 조합이, 망장은 진양보리×두산29호 조합이, 간직경은 사천6호×진광보리 조합이, 곡립장은 진양보리×두산8호 조합이, 곡립폭은 진광보리×두산8호 조합이, 1수립수는 진양보리×삼도보리 조합이, 1000립중은 사천6호×두산8호 조합 및 두산29호×두산8호 조합이 각각 정으로 높았고, 간장은 삼도보리×진광보리 조합이 부로서 높았다. RCA효과에서 수장은 두산8호×남향보리 조합이, 망장은 진양보리×삼도보리 조합이, 간직겨은 사천6호×진양보리 조합이, 곡립장은 사천6호×진광보리 조합이, 곡립폭은 진양보리×삼도보리 조합이, 1수립수는 사천6호×두산29호 조합이, 1000립중은 진양보리×두산29호 조합이 각각 정으로 높았고, 간장은 사천6호×두산29호 조합이 부로서 높았다. Seven barley varieties in F_1 generation of the possible crosses among them were used to estimate the combining ability for eight characters, i.e., culm length, spike length, awn length, culm diameter, grain length, grain width, number of grains per spike and 1000 grains weight. Data for F_1 hybrid and parents were subjected to the analysis method proposed by Griffing. The results obtained were summarized as follows. mean squares of general combining ability(GCA), specific combining ability(SCA) and reciprocal combining ability(RCA) were significant for all characters observed. Mean squares of GCA were higher than those of SCA and RCA in culm length, spike length, awn length, culm diameter, grain width, number of grains per spike and 1000 grains weight. Variety Dusan#29 showed the highest GCA effect for number of grains per spike and positively high effects of GCA were observed from variety Samdo bori in spike length, awn length, culm diameter, 1000 grains weight, and from variety Jinkwang bori I grain length, from Dusan#29 in grain width, umber of grains per spike, 1000 grains weight. Also Jinyang bori showed negatively high GCA effect in culm length. In SCA effects, hybrids in Jinyang bori × Samdo bori were exhibited positively high for number of grains per spike and high SCA effects for 1000 grins weight were found positively in Sacheun#6×Dusan#8 and Dusan#29×Dusan#. In RCA effects, hybrids in Sacheun#6×Dusan#29 were exhibited positively high for number of grains per spike and high RCA effects for 1000 grains weight were found positively in Jinyang bori×Dusan#29.

치주조직 상태에 따른 타액세균의 e-PTFE 막 부착에 관한 연구

주재익,정현주 전남대학교 치과대학 1995 전남치대논문집 Vol.7 No.1

The purpose of this study was to evaluate the bacterial adherence on e-PTFE membrane immersed in whole saliva from subjects with different periodontal status. Experiment involved 3 subjects groups : 5 persons with healthy periodontium(probing depth below 3mm and no signs of gingival inflammation including bleeding on probing), 10 patients with gingivitis(probing depth below 3mm and apparent signs of gingival inflammation), and 10 patients with advanced periodontitis(probing depth over 7mm and apparent signs of gingival inflammation). Each disease group was included before and after scaling and root planing treatment. After obtaining whole saliva from each subject, e-PTFE membrane(Gore-Tex periodontal membrane : GTPM??, W.L. Gore & Associates, Flagstaff, USA) specimens were immersed at room temperature in the saliva aliqouts for 1, 3, 7 days. The weight between pre-and post-immersion in saliva was measured with the analytical balance and the difference was recorded. The specimens were processed for SEM observation. The bacterial adherence on the membrane specimens was evaluated using the scanning electron microscope images. The obtained results were as follows : 1. There was no difference in the weight of bacteria adherent to e-PTFE membrane specimens according to the periodontal status and the immersion periods. 2. As the exposure time to saliva increased, the bacterial adherence to the membrane specimen significantly increased in all groups(P<0.005). 3. As the severity of periodontal disease increased, the bacterial adherence to the membrane specimens significantly increased(P<0.001). 4. After scaling and root planing, the bacterial adherence to the membrane specimens significantly decreased in gingivitis and periodontitis patient group(P<0.001). These results suggest that bacterial contamination on exposed barrier membrane surface be reduced through improvement of periodontal status and oral health environment before and after GTR procedure for the successful outcome.

흰쥐의 신경병증성 통증에 대한경피신경전기자극과 미세전류신경근자극

이윤주,이충휘,조상현,임중우,남택상 大韓再活醫學會 1999 Annals of Rehabilitation Medicine Vol.23 No.3

수종의 치과용 수복재료 및 시멘트의 radiopacity

정현주,강병철,오원만,양홍서 大韓口腔顎顔面 放射線學會 1994 Imaging Science in Dentistry Vol.24 No.1

The radiopacity of six composite resins, three resin luting cements and ten filling materials were studied. The purpose was to obtain an indication of radiopacity value of different brands within each of these groups of materials and to show differences in radiopacities of filling materials and natural tooth structures. On radiographs, the optimal densities of standardized samples were determined by computer imaging system and radiopacity values of the materials were expressed in millimeter equivalent aluminum. Within the groups of materials studied, there was considerable variation in radiopacity. The composite resins of P-50, Z100 and Prisma AP.H displayed much higher radiopacities than aluminum. Panavia resin cement was shown to be similarly radiopaque to aluminum. Generally, the radiopacity of base and filling materials appeared to be higher than that of the enamel and dentin. If materials with substantial difference in radiopacity are used in combined applications for restorative treatment of teeth, lower radiopacity can interfere with the diagnosis and detection of gaps near the restoration.