연 착화제 효능에 관한 동물실험적 연구

김정만,김병권,김성환,서병성,김인식,김용규,정갑열,김준연 동아대학교의과대학 1997 동아의대학술지 Vol.9 No.1

자궁경부에 발생한 배아성 횡문근육종 2예

박정열,조준식,김대연,이동헌,김종혁,김용만,김영탁,목정은,남주현 대한부인종양 콜포스코피학회 2002 Journal of Gynecologic Oncology Vol.13 No.3

횡문근육종은 소아와 청소년기에 가장 흔한 연부조직 육종이다. 발생 부위는 일반적으로 두부 및 경부, 그 다음으로 비뇨생식계이다 조직학적으로 배아성 횡문근육종, 국화상 육종, 폐포성 횡문근육종, 다형성 횡문근육종으로 나누어진다. 횡문근육종의 약 20%가 비뇨생식기에서 발생하고, 50% 이상이 배아성 횡문근육종이다. 여성 생식기의 배아성 횡문근육종은 드문 악성 종양으로,주로 유소아의 질에서 발생하며, 자궁경부에서 발생하는 횡문근육종은 청소년기에 흔하고, 질에서 기원하는 횡문근육종이 자궁경부에 기원하는 경우보다 5배 정도 많다. 폐경기여성에서는 자궁체부에서 가장 흔히 발생한다. 비뇨생식기의 횡문근육종의 치료는 과거에는 골반장기 적출술만으로 치료를 시도하였으나. 서서히 다중 항암화학요법, 방사선요법, 근치적 절제술을 포함한 병합요법으로 바뀌어가고 있으며, 이에 따라 생존율이 현저하게 향상되었다. 이에 저자들은 최근 본원 산부인과에서 자궁경부에 발생한 배아성 횡문근육종 2예를 경험하였기에 문헌 고찰과 아울러 보고하는 바이다. Rhabdomyosarcoma is the most common soft tissue sarcoma in childhood and young adult. Genitourinary tract is the econd most common site of rhabdomyosarcoma. Rhabdomyosarcoma can be classified into one of four major types; embryonal, alveolar, pleomorphic and undifferentiated. Embryonal rhabdomyosarcoma of the female genital tract is rare malignant tumor and usually occurs during childhood in the vagina. In rare cases, rhabdomyosarcoma can originate in the uterine cervix, with a peak incidence in the second decade. Recently we have experienced two cases of embryonal rhabdomyosarcoma of the uterine cervix. These cases are presented with a brief review of the literature.

연 착화제 효능에 관한 동물실험적 연구

서병성,김준연,김정만,김용규,정갑열,김성환,김인식,김병권 동아대학교 부설 산업의학연구소 1997 산업의학연구소 논총 Vol.- No.3

This experiment was carried out to compare the efficacy of 2,3-dimercaptosuccinic acid(DMSA) and calcium ethylenediamine tetraacetate(CaEDTA) as chelating agents for lead poisoning. The rats had been fed water containing 0.5% lead acetate for 3 months and randomly divided into three groups. We administered DMSA only for group I(n=5), CaEDTA only for group II(n=5), and both DMSA and CaEDTA for group III(n=10), for 4 days. We evaluated urinary lead(PbU) level, blood lead(PbB) level and blood zinc protoporphyrin(ZPP) level before and after administration of the chelating agents. The results obtained were as follows; 1. After administration of chelating agents, the mean PbU levels, which were 248.2㎍/dl, 252.6㎍/dl and 270.0㎍/dl in group I, II and III before administration, were increased to 484.6㎍/dl, 479.9㎍/dl and 1,792.1㎍/dl in group I, II and III, respectively(p<0.05). 2. After administration of chelating agents, the mean PbB levels, which were 67.4㎍/dl, 59.9㎍/dl and 62.5㎍/dl in group I, II and III before administration, were decreased to 38.1㎍/dl, 36.3㎍/dl and 31.3㎍/dl in group I, II and III, respectively(p<0.05), but there were no different changes of ZPP level among groups. 3. The blood lead clearances, which were calculated by PbB level before and after administration of chelating agents, were 49.8%, 43.5% and 39.5% in group III, I and II, respectively.

요천추부 신경근의 체온절

김영수,조용은,장호열 대한신경외과학회 1995 Journal of Korean neurosurgical society Vol.24 No.1

Thermography shows the skin temperature changes in various conditions of the body. The skin temperature varies according to subcutaneous blood flow under the control of autonomic nervous system Lumbar radiculopathy due to disc herniation makes difference in the temperature of lower extremities caused by the changes in general function and autonomic functions of the nerve root. Digital infrared thermographic imaging(DITI) system has been used to diagnose radiculopathy without any hazards or discomforts and shows the pain due to LDH by objective change of temperature. This study has used DITIs of 55 control cases and 217 cases of LDH patients and analysed it statistically. In the room of temperature stable at 20℃, the temperature distribution of the lower extremities of the control cases ranged from 24.9℃ to 29.9℃. The significant minimal temperature difference between right and left lower extremities range from 0.1℃ to 0.4℃. The more distal, the greater the temperature difference was. The thermatome of L4. L5 and S1 was drawn in radiating type and spot type. The thermatome showed larger area than the sensory dermatome and sympathetic dermatome. There was significant increase or decrease of temperature in thermatome in LDH patients. In conclusion, preoperative DITI of the LDH patient can be helpful for diagnosing the level do LDH and the areas of pain.

土壤水分別 播種期와 窒素施肥方法이 율무의 光合成과 生育 및 엽고병에 미치는 影響

金容撤,李忠烈,崔仁洙,朴賢哲,金成萬,林銖三 밀양대학교 농업기술개발연구소 2000 農業技術開發硏究所報 Vol.4 No.1

In order to establish optimal seeding date and nitrogen fertilization of adlay in barley-dlay cropping system of south-eastern part of Korea, yield and its components of adlay grown under at 3 different seeding dates and 2 nitrogen fertilizations were compared and analyzed. In addition, edible nutriants of adlay grain were compared with rice and woheat, between upland and paddy cultivation, and among three cultivars. The results obtained are summarized as follow: 1.Heading date and maturity date was fasted later seeding date than early seeding. Days to heading was decreased as the seeding date was delayed. 2.Stem leagth, stem diameter and No. of tiller were increased irrigation than control(non-irrigation), and was decreased as the seeding date was delayed. 3.Top and root dry weight were increased moisture were decreased irrigation than control(non-irrigation), and was decreased as the seeding date was delayed. 4.Net photosynthetic rate was increased at treatment of irrigation. Key word : adlay, seeding daye, soil water content, photosynthesis, growth.

M-Commerce에서 Secure Card 기반의 결제 프로토콜 설계

김성열,조성지,유성진,배용근 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

In order to provide a reliable M-Commerce, a payment solution with security functions should be required. User's mobile terminals used in M-Commerce services are diversifying to cellular phone, PDA, Smart phone etc. Among them, integration of PDA's interface and mobile connection overcomes the weak point of existing cellular phone depending on information via the internet. In this paper, the Secure Card based protocol for a credit card transaction on PDA using ECC is presented. Secure Card module on this protocol encrypts user's information such as private information, delivery information and credit card information and stores it on PDA in order to free from inputting information whenever it is used. This scheme also offers security services on M-Commerce including authentication, confidentiality, integration, non-repudiation and so on.

위치관리를 위한 단말기 페이징 기법의 성능 분석

김규칠,최창열,김용석 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B

Terminal paging is the process of determining the exact location of a particular mobile terminal. The paging cost is related to the number of paging cycles and the number of cells being polled by each cycle. In this paper, we first analyze the performance of various terminal paging strategies in terms of the number of polling cycles and the number of polling signals. Then we present a paging scheme which combines Shortest-Distance-First with movement history list. Simulation results show that the proposed paging scheme reduces the number of polling signals as well as the number of polling cycle.

박의 RAPD 분석을 위한 PCR 최적 조건 연구

김보경,김성만,김용철,이충열,박현철,최인수 밀양대학교 농업기술개발연구소 2000 農業技術開發硏究所報 Vol.4 No.1

This study was conducted to identify the best combinations of factors(template DNA concentration, MgCl2 concentration, and amount of taq polymerase) for the optimization of PCR in gourd. 3×3×3 factorial experiment for template DNA concentration, MgCl2 concentration, and amount of taq polymerase was conducted. Another factorial experiment for denature, annealing, extension temperature on the optimal PCR condition was also conducted. The most clear and reproducible bands were appeared in 40ng(1unit taq polymerase and 2.5mM MgCl2, and lunit taq polymerase and 4.5mM MgCl2, 1unit taq polymerase and 7.0mM MgCl2), 60ng(0.5unit taq polymerase and 2.5mM MgCl2, 0.5unit taq polymerase and 4.5mM MgCl2, 1unit taq polymerase and 2.5mM MgCl2, 1unit taq polymerase and 4.5mM MgCl2, and 1unit taq polymerase and 7.0mM MgCl2). The best MgCl2 concentration was 4.5mM(40ng template DNA and 1unit taq polymerase, 60ng template DNA and 0.5unit taq polymerase, and 60ng template DNA and lunit taq polymerase), and 7.0mM(40ng template DNA and 0.5unit taq polymerase DNA). The combinations which showed the best bands from the amount of taq polymerase were 0.5unit(60ng template DNA and 4.5mM MgCl2) and lunit(40ng template DNA and 2.5mM MgCl2, 40ng template DNA and 4.5mM MgCl2, 40ng template DNA and 7.0mM MgCl2, 60ng template DNA and 2.5mM MgCl2, 60ng template DNA and 4.5mM MgCl2, 60ng template DNA and 7.0mM MgCl2). When we consider results from template DNA concentration, MgCl2 concentration, and amount of taq polymerase, 1 condition(40ng of template DNA, 4.5mM MgCl2 and 1unit taq polymerase) was the best combination for the optimal PCR condition. Reaction temperatures for the optimal PCR condition were 84℃, 32℃, 62℃ and 86℃, 35℃, 64℃.

기하학적 정보를 이용한 Burr 형성 예측 프로그램의 개발

김영진,이제열,안용진 한국경영과학회 2000 한국경영과학회 학술대회논문집 Vol.- No.1

금형가공에 상용되는 밀링머신의 가공시 공구와 피삭재의 접합면에서 버가 생성되며, 이러한 버의 생성에 따라 작업효율 감소 및 생산비의 비효율적 낭비를 가져오게 된다. [1] 밀링 작업시 버가 생성되는 메카니즘을 파악하여 임의의 형상을 가진 공작물을 밀링작업할 때의 버의 형태와 Exit 각 등을 제공하는 프로그램을 개발하려 한다. 여기에서 핵심적인 피삭재의 형상 인식, 절삭영역 인식, 공구와 피삭재의 접점 및 그 Exit 각을 결정하는 알고리즘을 소개한다. 이러한 과정을 통해 Exit 버 알고리즘에 대한 연구를 수행하고자 하며, concave를 포함한 여러가지 형상의 피삭재를 대상으로 Exit 버에 대한 접근을 시도하여 실제 작업에서와 유사한 환경에 대해 고려함으로써 버의 감소 및 작업 효율성의 증가를 위한 기초 연구를 수행한다. 또 이를 이용하여 Windows 환경에서의 버 예측 프로그램을 개발한다.

Exit Burr 판별 알고리즘의 개발 : 임의형상 및 다중경로의 해석

김영진,이제열,안용진 한국경영과학회 2001 한국경영과학회 학술대회논문집 Vol.- No.1(1)

금형가공에 사용되는 밀링머신의 가공시 공구와 피삭재의 접합면에서 버가 생성되며, 버의 형태는 가공공정에 따라 매우 다양하게 나타난다. 이러한 버는 작업효율 감소 및 후처리과정(deburring)을 야기하게 되어 Exit 버를 구분할 수 있는 분류기준이 필요하게 된다. 이에 공작물의 밀링가공 공정시 버의 형태와 Exit 각등을 제공하는 알고리즘을 개발하고자 한다. 본 논문은 이제까지 연구 개발한 직선 단일 경로에 대한 Exit 버 판별 시스템에서 좀더 구체적이고 사실적인, 실제가공에서 사용되는 다중경로의 구현으로 프로그램을 확대하고자 한다. [1] 즉, 점과 선으로 연결된 도형뿐 아니라 원(구멍)과 호 등을 포함하는 임의의 형상을 인식하고 입력된 절삭조건을 해석하여 다중 가공 경로상에서 발생될 버를 해석함으로써 버의 최소화 및 최적 절삭가공공정을 개발 및 작업 효율성의 증가를 위한 기초 연구를 수행한다. 이러한 조건에 대한 해석 알고리즘을 Windows프로그램으로 구현하였다.