열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구

배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.

하악골 골절에 대한 임상통계학적 연구

이성훈,김기영,조규승,소광섭,박홍주,조요기,오희균,유선열 大韓顎顔面成形再建外科學會 1998 Maxillofacial Plastic Reconstructive Surgery Vol.20 No.1

IMT-2000 환경에서 Block Design을 응용한 회의용 인증메카니즘의 설계

이여진,김중태,조영주,유성진,배용근 조선대학교 전자정보통신연구소 2003 電子情報通信硏究所論文誌 Vol.6 No.1

In this paper, we present conference key authentication mechanism by employing an algebraic method on IMT-2000 environment To accomplish this, Symmetric Balanced Incomplete block design is applied for generating the communication key and then this key is distributed to participants Through this technique for creating a conference key and mutual authentications performed based on identification information, the communication protocol is designed The protocol presented minimizes the transmission complexity for generating a conference key On a special case the time complexity is O(v√v), where v is the number of participant. The security of the mechanism, which is a significant problem in the construction of Secure system, can be, proved as computationally difficult to calculate as factoring and discrete logarithms.

비영리법인의 과세제도에 관한 연구

이주성 忠州大學校 2007 한국교통대학교 논문집 Vol.42 No.-

Knowledge information society in 21st century emphasizes the social responsibility for the increase of welfare and public benefit so that the corresponding role has been expanded. Thus, the government is more obliged to improve the social welfare and public interests. However, the government alone cannot afford to meet the rapidly increasing social and economic needs, and therefore, the roles of the non-profit corporations become more and more important to support the government function, while people are more concerned about the tax systems related to establishment and activities of the non-profit corporations. With such basic conceptions in mind, the purpose of this study is to suggest the improvement for the tax system of non-profit corporation in comparison with foreign systems. To accomplish this objective, this study reviewed the existing relevant studies and literatures. By the results of this study, I suggested some improvements for two aspects of the corporation income tax and the value-added tax. The findings of this study will contribute to the settlement and development of the non-profit corporation in Korea.

특수형 방사성 동위원소 운반캡슐의 안정성 평가

이주찬,서기석,구정회,방경식,한현수,박성원 대한방사선 방어학회 2001 방사선방어학회지 Vol.26 No.1

특수형 방사성물질 운반캡슐은 국내외의 수송관련 법규에 규정된 기술기준을 만족하도록 설계, 제작되어야 한다. 본 연구의 목적은 하나로에서 생산된 192Ir 특수형 동위원소 운반캡슐의 건전성을 평가하는데 있다. 법규에서 규정된 낙하시험, 타격시험, 굽힘시헝 및 가열시험조건에 대한 안전성 시험을 수행하였으며, 각각의 시험 전후에 누설시험을 수행하였다. 또한, 안전성시험과 더불어 컴퓨터코드를 이용한 전산해석을 수행하여 안전성시험 전에 시험결과에 대한 예측자료로 활용되었다. 낙하시험 및 가열시험 결과 캡슐 표면에서 약간의 흠집과 변형이 발생하였으나, 각각의 시험에서 평가기준이 되는 캡슐의 손상이나 용융 등은 발생하지 않았다. 또한 각 시험 후 수행한 누설시험 결과 누설이 발생하지 않았다. 따라서 특수형 방사성물질 운반캡슐은 법규에서 규정하는 기술기준을 만족하도록 설계, 제작되었음이 입증되었다. All of sealing capsules to transport a special form radioactive material should be designed and fabricated in accordance with the design criteria prescribed in IAEA standards and domestic regulations. The objective of this study is to demonstrate the safety of a shipping capsule for 192Ir special form radioisotope which produceed in the HANARO. The safety tests were carried out for the impact, percussion, bending and heat test conditions. And leakage tests were carried out before and after the each test. Also, the safety analyses were performed using computer codes in order to verify the test results. The capsule showed slight scratches and deformation, and maintained its structural and thermal integrities in all tests without any severe damage or melting. It also met the allowable limits of leakage rate after earth test. Therefore, it has been verified that the capsule was designed and fabricated to meet all requirements for the special form.

능동 필터에 의한 저잡음 믹서의 MMIC 설계에 관한 연구

이성주,이영철 慶南大學校 附設 工業技術硏究所 2003 硏究論文集 Vol.21 No.1

본 논문은 K-대역 마이크로파 수신기의 이미지 신호를 제거하기 위하여 0.2㎛ GaAs p-HEMT라이브러리를 사용하여 능동 필터와 저잡음 믹서를 MMIC로 설계하였다. 능동 필터는 수동 공진부와 증폭단을 직렬로 구성하였으며 저잡음 믹서단은 캐스코드 구조를 사용하여 저잡음 특성을 가지도록 하였다. 설계된 능동 필터의 모의 실험 결과, 약 5㏈의 삽입 이득과 이미지 주파수에서 약 52㏈c의 이미지 제거 성능을 나타내었고 믹서는 3㏈의 변환 손실을 나타내었고 잡음지수는 5㏈이다. In this paper, We designed a low noise mixer with active filter for K-band to suppress the image signal with 0.2㎛ GaAs p-HEMT MMIC Library. The designed mixer uses a cascode topology to provide low noise performance, while the active filter adapts actively coupled resonators. As a result of experiment, the designed active filter Show the 5-㏈ insertion gain. 52-㏈ image rejection and the designed mixer has 3-㏈ conversion loss and 5㏈ SSB NF.

안성시 지역의 농업기계 보관관리 실태조사

이홍주,이성범,김성엽 안성산업대학교 1999 論文集 Vol.31 No.-

This study was conducted to analyze the storage and management status of major farm machinery, and to present the basic information for the construction of multipurpose storage housing suitable to the individual farmers by identifying current problems. The results of this study are summarized as follows; 1. The average farm area of the surveyed farmers was 4.25㏊, which represents relatively higher than the average of whole country. The mechanization rate for paddy farming was 98% so, the individual storage housing should be concentrated on the farm machinery utilized in paddy farming. 2. The annual operating span of the seasonal farm machinery (such as combine and rice transplanter) showed high difference between farmers and machines. For th rice transplanter, the highest portion of annual operation span was less than 10 days as 70%, and for the combine, that was over 20 days as 36% and the second was 16~20 days as 23%. The average difference in repairing cost for combine between the farmers with and without common storage housing was 100,000won. 3. The percent of storaging farm machinery in the open field for farmers without housing were 44% for power tiller, 16% for farm tractor, 21% rice transplanter, 10% for combine. Each farmer has individual temporary simple housing with various kinds and structure. 4. Most of the farmers, 63.7%, want to use the farm machinery storage housing for multipurpose utilization, 29% only for storaging purpose. Most farmers prefer near the farm house as suitable position of housing, and prefer the area of 132~198㎡ for storage housing. The current problems on common storage housing were insufficient area(44.8%), no problem(29%), improper position, excessive construction cost, inconvenient entrance, etc.

바닥재 처리로 인한 수송 트레일러의 수직진동 감쇠 효과

이홍주,홍종호,김성엽 안성산업대학교 2002 論文集 Vol.34 No.-

This study was aimed to prevent the quality loss of agricultural products, which could be occurred by the vibrations of transporting trailer. The vibration absorption effect was measured and analyzed by mounting the polystyrene material on the bottom of trailer. The transporting trailer was tested with being mounted by the pear boxes up to fourth floor. The results of this study could be summarized as follows: 1. At low engine speed of 500rpm, the average vertical vibration level of the first floor boxes (lowest boxes) was reduced to almost half of the non-mounting system. And, at the fourth floor boxes (highest boxes), the vibration absorption effect was higher as about 10 times compared with the non-mounting system. 2. At standard engine speed of 1,000rpm, the average vertical vibration level of the first floor boxes was almost same as 0.005㎨ and 0.006㎨ respectively, but at the fourth floor boxes, the average vertical vibration was reduced to almost 60% of the non-mounting system.

중합효소연쇄반응을 이용한 도말양성 폐결핵 환자에서의 결핵균 DNA 검출방법에 관한 연구

이종진,김애경,조해정,한표성,홍석철,김주옥,김선영 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

Polymerase chain reaction (PCR) is the most sensitive and rapid method for the diagnosis of M.tuberculosis infection. Many reports have shown different methods for mycobacterial DNA extraction, but revealed many differences in simplicity and time-consumption. We studied which method was the best among 7 different ones for DNA extraction from 32 smear-positive sputa, using PCR of targeting 123bp DNA fragment of IS6110. The methods were the following : SDS-Microwave oven method, NaOH Lysis method, Triton X-100, Proteinase K method, Lysis buffer method. SDS-Proteinase K method, Bead Beater method, and Bead Beater/CTAB method. The amplification products were identified by electrophoresis on ethidium bromide-stained agarose gels, and confirmed by restriction enzyme, Southern blot hybridization, and DNA sequencing. All 32 cases were positive (100%) by the 7 different methods. It took 1 hour or more to detect DNA in SDS-Microwave oven method, NaOH Lysis method, and Bead beater/CTAB method. It took 2 hours or less in the others. SDS-Proteinase K method and Bead Beater/CTAB method were simpler and more convinient than the others. These results suggest that SDS-Proteinase K method and Bead Beater/CTAB method might be better than the others for the extraction of mycobacterial DNA in terms of simplicity and time-consumption, although all the methods were sensitive.

유기농 자재의 시용이 토양의 이화학적 성질과 상추, 가지의 생육 및 체내성분에 미치는 영향

이종성,김기영,황필성,오주성,정원복,정순재 동아대학교 2001 大學院論文集 Vol.26 No.-

This study was carried out to investigate the effect of microbial fertilizers on the application of organic farming materials in soil on growth and yields of leaf lettuce, eggplant. Three microbial fertilizers, Aika, Kalen-gold and EMRO-EM were used. The results were summarized as follows ; 1. The effect of soil chemical properties after application organic arming materials, The amounts of pH, EC, P2O5 and O.M. treated all plot were few of change. 2. Change of soil microbial after application organic farming materials, The number of bacteria, actinomycetes and fungi in N, P, K treated plot showed the increased tendency, to the contrary, The number of bacteria, actimycetes in Aika, kalen-gold and EMRO-EM treated plot showed the increased, The number of fungi showed the dicreased tendency 3. The application effects of Aika, Kalen-gold and EMRO-EM on the growth, yield and components of leaf lettuce and eggplant in comparison with chemical fertilizers plot was not a difference.