치아 수복용 불소함유 glass filler의 제조 및 특성

김대성,최세영,김경남,김광만,김중곤 대한치과기재학회 1998 대한치과재료학회지 Vol.25 No.3

The purpose of this study was the reaching test of restorative glass according to composition. Mixtures of SrF₂, CaF₂and SiO₂were fused in platinum crucible. The glasses were ground and fraction which passed through a 400 mesh (38㎛) sieve were collected. The powder specimens were analyzed by a DTA and XRD. Then powder specimen were inserted to D. I. water with various of dissolution time and composition at 37℃. Fluoride ion, cation release, solubility, and pH change were estimated. It was clear that the glasses were formed except S0.65. In S0.40, Tg, Ts, and Tc were 630, 672, and 813℃ respectively. In initial 0.5 hrs., amounts of released fluoride ion and cation were about 90% of total released amounts and released rate was decreased with dissolution time. Amount of released fluoride ion and cation were increased with decreasing SiO₂ in glass filler. And released rate was decreased rapidly by adding CaF₂. This was caused by structural variation in glass filler. Solubility was similar tendency with ion released. The pH of D.I. water was 4.5. But in intial 0.5 hrs., pH was 8.2∼9.8., and decreased according to dissolution time. This is caused by ionic changing with cation and H* ion.

소에서 盲腸擴張을 동반한 第4胃食滯 手術 1例

김명철,김덕환,신상태,임준호,김남중,김종만 충남대학교 수의과대학 동물의과학연구소 1998 動物醫科學硏究誌 Vol.6 No.-

Abomasal impaction with cecal dilatation was diagnosed in a 3 years old holstein cow. The clinical signs were loss of appetite, scant feces and moderate distension of the abdomen. Ping sound was revealed in the right 11th intercostal space by auscultation. Cecal dilatation and abomasal impaction were ascertained by right flank laparotomy and abdominal exploration, and intestinal content and gas were removed from the cecal apex incised. One day later, 2.5㎏ of sand was removed by ventral paramedian abomasotomy.

신규 3작용성 메타크릴레이트의 치과용 광중합형 콤포짓트 레진용 단량체로서의 응용 연구

김중곤,정찬문,김민성,김광만,김경남 大韓齒科器材學會 2001 대한치과재료학회지 Vol.28 No.4

Tris[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]methane(THMPM) was prepared easily from triphenylolmethane triglycidyl ether in good yield. As compared with composite resin formulated with difunctional bis-GMA, the physical properties of a newly developed composite resin formulated with trifunctional THMPM was evaluated. Cytotoxicity and acute toxicity of composite resin based on trifunctional THMPM evaluated according to ISO standard method. The depth of cure of the composite resin based THMPM was higher than that of the bis-GMA composite. There were no significant differences in flexural strength and water sorption between the composites resin based on THMPM and bis-GMA. The water-solubility value for the light-activated composite resins formulated with THMPM was much lower than that for a control bis-GMA composite. According to cytotoxicity evaluation, the composite resin based on THMPM showed very mild cytotoxicity with the response index of between 0/0 and 1/0. No acute toxicity of composite resin formulated with trifunctional THMPM was also observed. It is believed that THMPM is promising candidate for application as a photocurable dental composite resin.

체외형 자동 제세동기(AED)와 심전도계(ECG)를 위한 통신 프로토콜의 설계 및 사용자 인터페이스 구현

김남훈,권희중,권호열,나학록 江原大學校 産業技術硏究所 2004 産業技術硏究 Vol.24 No.A

In this paper, we studied Automated External Defibrillator and Electro- Cardiogram System. Proposed System, CU-EX1, is a PC-based AED/ECG system that manages the data acquired by Paramedic CU-ER1. The system controls the transfer of data from the Paramedic CU-ER1 and the storage of the data in a local host computer. Patient data could be entered as soon as the rescue data is stored in a local computer. The system also displays the data on a local computer and facilitates review of rescue events.

衛滿朝鮮의 王權과 地方統治體制

金南中 한국고대사학회 2004 韓國古代史硏究 Vol.33 No.-

A lot of historian has been studied to a political system of Wiman-Choson, the majority of them concluded that the immigrants, fled from China Yen(燕)ㆍCh'i(齊)ㆍ Chao(趙), had founded State Wiman - Choson through forcing out king Jun(準), the last king of Old - Choson, but they permitted the native to occupy the part of the political power in the government for not overwhelming them by force. But it is cleared that a founding core group of Wiman - Choson, the chinese immigrants and a Old - Choson people undergoing to be subjected by Yen(燕) and Ch'in (秦) state, assumed the reins of government. The king of Wiman - Choson was an absolute monarch, Irrespectively of his/her nationality and blood, being a government official of Wiman - Choson was to pledge allegiance to the king without exception. A founding core group of Wiman - Choson had experienced absolute government in China, They resided on the area that it ranged over from the east of Hon river(渾河) to the north of Ch'ong - ch'on(淸川) liver, the central area of Wiman - Choson. They were ruled by prefectural governors, Wiman - Choson enfeoffed the part of these area to loyal subjects and members of royalty, and dispatched Sang(相) there to watch the feudal princes, But the other hand, they were assimilated Old - Choson culture because they had adopt themselves the culture. The society of native Old - Choson had been operated tribalism, so Wiman - Choson ruled over the tribesman through the hand of their chief. Namely a order of king was reached to the chief only and not to the tribesman directly. Needless to say, Wiman- Choson dispatched prefectural governors, not administrative officials but army commanders, to the area, resided the native, at strategic positions for preventing them from rising in revolt and declaring independence.

항생제 사용과 관련된 Clostridium difficile 감염증

김홍빈,김남중,최희정,오명돈,김의종,최강원 대한화학요법학회 1997 대한화학요법학회지 Vol.15 No.1

목적 : Clostridium difficile 감염증은 중요한 원내 감염중의 하나로 최근 들어 항균제 사용의 증가와 함께 그 빈도가 늘어나고 있어 Clostridium difficile 감염의 빈도 및 임상양상을 알기 위해 본 연구를 시행하였다. 방법 : 102명의 정상 성인으로부터 대변에서 Clostridium difficile 배양을 시행하였으며, 92년 3월부터 93년 9월까지 서울대학교 병원에 입원한 환자중 대변배양 검사에서 Clostridium difficile이 배양된 61명의 환자를 대상으로 병록지를 토대로 조사하였다. 결과 : 정상 성인 중 3%에서 Clostridium difficile이 분리되었다. 대상환자의 기저 질환은 악성고형종양(29%), 혈액종양(6.5%), 뇌혈관 질환(6.5%), 간경변(4.9%) 등의 순이었으며, 대상 환자의 75%에서 균이 분리되기 6주 이내에 항균제가 사용되었다. 사용된 항균제는 aminoglycoside(60.8%), 1세대 cephalosporin(56.5%), 3 세대 cephalosporin(43.4%), ampicillin(15.2%), metronidazole(15.2%), clindamycin(8.6%)의 순이었다. 흔한 증상은 설사(77%), 복통(53.8%), 오심(37%), 빈맥(25%) 등이었며, 혈액 검사상 백혈구증가증은 21.6%, 저알부민혈증은 3.03%에서 관찰되었다. 44명의 환자중 24명의 환자가 대증적 치료 후 호전되었고, vancomycin이나 metronidazole을 투여받은 17명의 환자중 15명의 환자가 증상의 호전을 보였다. 4예가 사망하였으며, 3예(4.9%)는 재발하였다. 결론 : Clostridium difficile 장염은 항균제 사용시 흔히 발생하는 질환이다. 정상 성인의 3%에서 Clostridium difficile이 분리되었다. Objective : Clostridium difficile gastrointestinal disease is an important nosocomial infection and is associated with antibiotic use. This study evaluated the incidence and clinical characteristics of Clostridium difficile infections. Methods : Stool specimens from 102 normal adults were cultured for Clostridium difficile. Sixty-one patients with Clostridium difficile isolated from stool specimens were reviewed retrospectively. The patients were seen at the Seoul National University Hospital during the period from Mar., 1592 to Sep., 1993. Results : Clostridium difficile was isolated in 3% (3/102) of normal adult Population. Underlying diseases of the patients included solid tumor(29%), hematologic malignancy(6.5%), corebrovascular disease(6.5%), and liver cirrhosis(4.9%). Antibiotics associated with Clostridium difficile infections included aminoglycosides (60.8%), first generation cephalosporin(56.5%), third generation cephalosporin(43.4%), ampicillin(15.2%), metronidazole(15.2%), and clindamycin(8.6%). In 3/4 of the cases, these antibiotics had beer) administered within 6 weeks before Clostridium difficile isolated. Associated symptoms included diarrhea(77%), abdominal pain(53.8%), nausea(37%), fever(37.7%), and tachycardia(25%). Leukocytosis and hypealbuminemia were observed in 21.6% and 30.3%. Out of 44 cases received symptomatic treatment, 54% (24/44) improved. Of 17 cases treated with metronidazole or vancomycin, 88% (15/17) improved. Four cases expired and 3 cases(4.9%)were relapsed. Conclusion : Clostridium difficile gastroenteritis is frequently associated with antibiotic treatment. Three percent of normal adult population had Clostridium difficile.

중합효소연쇄 반응법에 의한 인형거대세포바이러스(human cytomegalovirus)의 신속한 검출

김의종,오명돈,박기호,신형식,이환종,김남중,최강원 대한감염학회 1996 감염 Vol.28 No.4

목 적 : 인형거대세포바이러스(HCMV)는 면역 저하 환자에서 폐렴, 망막염, 간염 등 치명적인 감염증의 원인이다. 전통적인 세포 배양법으로 HCMV를 분리하기까지는 1주에서 4주가 걸리므로 이 바이러스에 의한 질환이 의심되는 경우 신속한 진단법을 이용한 진단이 바람직하다. 저자들은 한국에서 분리되는 야생주 HCMV를 검출하는데 중합효소 연쇄 반응법을 이용할 경우의 진단적 유용성을 알기 위하여, 전통적인 세포배양법으로 HCMV가 분리된 검체를 이용하여 중합효소 연쇄 반응법의 특이도와 민감도를 평가하였다. 방 법 : 국내 야생주 HCMV 15주, 그리고 전통적인 바이러스 배양법으로 HCMV가 분리된 소변 15검체를 대상으로 중합효소 연쇄 반응을 실시하였다. 중합효소 연쇄 반응은 Towne주의 immediate early antigen의 유전자에서 유리된 primer MIE와 AD169주의 immediate early antigen의 유전자에서 유리된 primer IE를 이용하였다. 증폭 산물은 겔 전기영동 후 EtBR으로 염색하여 자외선 하에서 관찰하였다. Primer IE에 의한 증폭산물은 또한, DNA blot hybridization 방법으로 확인하였다. 결 과 : 1) 국내 HCMV 야생주 15주를 대상으로 중합효소 연쇄 반응을 한 결과 primer IE를 이용한 경우에는 100%(15/15)에서 177bp의 증폭 산물이 관찰되었고, 이들 증폭 산물은 모두 probe IE와 보합 결합되었다. primer MIE를 이용한 경우에는 93%(14/15)에서 435bp의 증폭 산물이 관찰되었다. 2) 세포 배양법으로 HCMV가 분리된 소변 15검체를 대상으로 primer IE를 이용하여 중합효소 연쇄 반응을 한 결과 direct gel analysis 법으로는 73%(11/15)에서, 보합 결합법으로는 87%(13/15)에서 관찰되었다. Primer MIE를 이용한 경우에는 direct gel analysis법으로 87%(13/15)에서 435bp의 증폭 산물이 검출되었다. 결 론 : Primer IE와 MIE를 이용한 중합효소 연쇄 반응법은 국내 야생주 HCMV를 신속히 검출하는데 유용한 검사법이다. Background : Human cytomegalovirus(HCMV) can cause pneumonitis, hepatitis, retinitis and other serious diseases in the immunocompromised patients. It takes 1 to 4 weeks to diagnose HCMV infection by conventional virus culture. Therefore, when HCMV diseases are suspected, a rapid diagnostic method such as polymerase chain reaction(PCR), antigen assay or shell vial culture is desirable. We evaluate the sensitivity and specificity of a PCR for the rapid detection of HCMV wild strains in Korea. Methods : We used 2 sets of primers ; primer IE and primer MIE derived from the sequence for immediate early gene of AD169 strain and Towne strain, respectively. Fifteen clinical isolates of HCMV, suspended in MRC-5 cells, were amplified by PCR. Fifteen urine specimens which were positive for HCMV by conventional virus culture were also amplified. Amplification products were analyzed by polyacrylamide gel electrophoresis. The products from PCR with primer IE were also identified by DNA blot hybridization. Results : PCR using primer IE gave the PCR products in all of the 15 HCMV wild strains. All of these were hybridized with probe IE. When primer MIE were used, 93%(14/15) of the wild strains showed amplified bands by direct gel analysis. When the urine specimens were amplified by PCR with primer IE, amplified bands were seen in 73%(11/15) by direct gel analysis ; 87%(13/15) by hybridization method. When primer MIE were used, 87%(13/15) of the urine specimens showed the PCR products by direct gel analysis. Conclusion : Polymerase chain reaction with primer IE and MIE may be a specific and sensitive diagnostic method for rapid detection of HCMV wild strains in Korea.

개에서의 膀胱結石 手術3例

김명철,장석진,이교영,김남중,변홍섭,박명호 충남대학교 수의과대학 동물의과학연구소 1995 動物醫科學硏究誌 Vol.3 No.-

Three dogs which show clinical signs of cystic calculi with anorexia, hematuria, stranguria, dribbling of urine, and pain in posterior abdomen, were referred, and diagnosed as cystic calculi by radiography and ultrasonography. Removal of urinary cystic calculi was performed by urinary cystotomy. Calculi, removed surgically, were analyzed chemically and microscolically. Calculi from three patient dogs were calcium carbonate in all. After the removal of calculi recurrence of urolith were not observed up to nowadays for about 4-10 months.

벼 생산경영 종합관리 S/W개발

김웅,김창수,김동원,국중덕,송영주,오남기,최영근 한국농업정보과학회 2001 농업정보과학 Vol.3 No.1

This programme consisted of 8 menus, which are basic information, job worksheet, technique information, management analysis, file management, window management, help and conclusion. The major functions of this programme by menus classified as follows : 1. The basic information menu, which consisted of a lots of basic farm management information, can be easily accessible to get general farm status of S/W users and inputted data used as basic data for farm management analysis. 2. In worksheet menu, users can easily access to record and search of farm work planning, contents of work, agricultural materials and selling status. 3. In management achievement menu, lots of indexes which represent one years' management achievements are produced and can be compare this years' achievements with last years' ones. This programme Delphi5 and Object pascal programme were used for tools and languages. Also Paradox4 and BDE were used for DB and DB engine respectively.

대학볼링선수들의 경기력 수준과 성에 따른 경기전 심리요인 분석

김규석,남중웅 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

The questionnaire research was conducted on pre-game psychological factors such as intrinsic motivation, ego-orientation and task orientation, attentional focus for a total of 139 college Bowling players composed of 75 male and 64 female players in order to investigate the differences from psychological Factors that college Bowing players have in a reel competitive situation according to gender and performance levels, The followings are the result of this study. 1. In terms of attentional focus, the male players were higher in the factor of BET, NAR the female players were higher in the factor of OET, the superior players were higher in the factor of BIT, BET, NAR the inferior players were higher in the factor of OET, RED and there was a statistically significant difference. 2. In terms of ego-orientation and task-orientation, the inferior players had the higher level than the superior players had in the Factor of ego-orientation, there was a statistically significant difference. 3. In terms of intrinsic motivation, the male players were higher in a sense of ability than the female players, the female players had the higher interest and effort then the male players had and it was also Found that there was a statistically significant difference. The superior players were higher in the factor of a sense of ability, effort and the inferior players were higher in the factor of a sense of tension, there was a statistically significant difference.