전기ㆍ전자 신뢰성 시험을 위한 전문가 시스템

송경철,장중순,김명수 대한설비관리학회 2001 대한설비관리학회지 Vol.6 No.1

An expert system is developed to help reliability engineers to set up testing plans. The testing procedures for electric and electronic components in IEC standards and military standards are included in a database and the system can display appropriate testing procedures for the failure modes and causes which will be specified by users.

전두사골 수막뇌류 및 Saethre-Chotzen증후군에 의한 안와격리증의 치험

송중원,한기환,박성근,강진성 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.2

본 교실에서는 전두사골 수막뇌류에 의한 안와격리증 2례는 두개내 접근으로 수막뇌류 절제술을 실시함과 동시에 두 개외 접근으로 안와내벽 및 외벽 절골술로써 교정하였으며 Saethre-Chotzen 후군에 의한 1례는 두개골 성형술과 U형 절골술로 교정하여 비교적 만족할 만한 결과를 얻을 수 있었기에 보고하는 바이다. The authors experienced two cases of mild hypertelorism with frontoethmoidal meningoencephalocele and one with Saethre-Chotzen syndrome. The first and second cases, which had nasofrontal and nasoethmoidal meningoencephalocele respectively, were corrected by resection of the meningoencephalocele, repair of the dura, and calvarial bone graft intracranially, and combined medial and lateral orbital wall osteotomy with augmentation rhinoplasty with calvarial bone grafts extracranially. To stabilize the orbital contents medially, a split osteotomy of the lateral orbital wall and interpositional bone graft were done in order to avoid step deformity of the lateral orbital rim. The third case, Saethre-Chotzen syndrome characterized brachycephaly, hypertelorism, ptosis of the eye lid, maxillary hypoplasia, lower set frontral hair line, and partial cutaneous syndactyly was corrected by a Modified Marchac technique for remodelling the forehead and a subcranial U-osteotomy for mild hypertelorism. Maxillary hypoplasia was corrected effectively by advancement on the medial portion of the U-shaped bony segment. Augmentaton rhinoplasty with calvarial bone graft and chip bone grafts on the anterior nasal spine was done simultaneously. A large amount of nasal bone grafts in two cases were absorbed, and then augmentation rhinoplasty using silicone implant was performed after 6 months, 12 months respectively. In mild hypertelorism with associated deformity, a extranial osteotomy with augmentation rhinoplasty and correction of associated deformities can offer good aesthetic results.

안면부, 유방 및 상완부에 발생한 홍반성 루푸스 지방층염 1예

송유근,손두식,명형준,이현정,임중규,김순호,김윤아 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.2

Lupus erythematous panniculitis is a chronic inflammatory disease of subcutaneous fat that occurs in 2-3% of patients with systemic lupus erythematosus. Lupus erythematous panniculitis typically presents with firm, indurated subcutaneous nodules or plaques commonly developed in proximal extremities, trunks, head and neck. Face, breast and upper extremities involvement with lupus erythematous panniculitis has been infrequently reported. We report a case of lupus erythematous panniculitis developed in a 27-year-old female confirmed by histologic features and laboratory findings.

태아 피부 에크린한선의 발육에 관한 전자현미경적 연구

송계용,김숙이,서중석,지제근 중앙대학교 의과대학 의과학연구소 1991 中央醫大誌 Vol.16 No.3

To observe the developing process of human fetal eccrine sweat gland during the intrauterine life, an electron microscopic study was carried out based on 12 fetuses ranging from 20 to 42 weeks of gestation. These fetuses were the products of induced deliveries found to have not associated disease or congenital anomalies at the autopsy. Following observations were made. The various types of cell consisting coiled portion of eccrine sweat gland were recognized at the 20th weed of gestation and they were clear cells, undifferentiated dard cells, myoepithelial cells. clear cells were located in central central portion and dark or myoepithelial cells were in peripheral portion. While undifferentiated dark cells were randomly distributed in the straight portion of eccrine sweat gland. The differential points between clear cell and undifferentiated dark cell were its round nucleus and glycogen contents. Marked hydropic changes of clear cells were noted at the 30th week of gestation. Secretory granules were noted at the 31st week of gestation. Secretory cells in the coiled portion of eccrine sweat gland was not fully mature until the 42nd week of gestation. Clear cells showed clear cytoplasm, abundant free ribosomes and scanty organelles. Undifferentiated dark cells showed many mitochondria and few glycogen. Secretory granules were rarely seen. Myoepithelial cells showed a few mitochondria, glycogen and microfilaments. Among three portions of eccrine gland, duct lumen in the acral and coiled portion were formed through the intracellular canaliculus and in the straight portion were made through the intercellular canaliculus. The main basic morphological mechanism of the lumen formation were microvesicle formation and pinched off phenomenon.

중금속오염을 고려한 온산만 조간대 및 아조대의 무척추동물 군집분석

박중기,이인숙,박경숙,송준임,최병래,노분조 이화여자대학교 환경문제연구소 1997 이화환경연구 Vol.1 No.-

한국 동해연안의 하나인 온산만 지역의 해양오염 실태를 파악하기 위해 저서동물 군집구조에 대한 정성, 정량적 분석을 실시하였다. 분석결과 조사지역별 습중량-개체수의 누적 κ-dominance curve 변화양상을 근거로 판단해 분석한 결과, 온산만의 내만에 위치한 춘도는 여름, 겨울 오후에 ()어서 오염지역으로, 대조군인 당사는 비오염지역,()각각 판정되었다. 이외에도 조사지역별 출현() () 있어서 대조구인 당사지역에 비해 춘도의 생물상이 ()대적으로 빈약하였으며 연체류중 패각만 채집된 ()에 있어서도 각각 춘도에서 16종, 당사에서는 (0로 커다란 차이를 나타내었다. 온산만에 대한 이러한 저서동물 군집결과는 이 주변의 비철금속 및 석유화학 공업단지로부터 ()입된 중금속으로 인하여 해수 및 생물농축량이 누적됨으로써 나타나는 중금속의 높은 농도와 관련이 있을 것으로 추측된다. The qualitative and quantitative analyses of macrozoobenthic communities sampled from Onsan bay of the eastern coast of Korea were conducted, in this study, to investigate the status of marine pollution. In each survey site, judging from the results of the combined κ-dominance curve for species biomass and individual numbers, it may be assessed that Chundo island, located in innerside of Onsan bay, was in the state of polluted condition both in the summar and winter seasons; on the other hand, Tangsa, the control site of this study, was in the state of unpolluted condition. The species composition of the Chundo island, in addition, was rather lower than that of the Tangsa in richness and showed critical differences with the control site in the number of molluscan species collected as dead shell(16 spp. from Chundo island; 2spp. from Tangsa respectively) It is inferred that the resultant macrozoobenthic community structure of the Onsan bay was related to the high concentration of heavy metals in seawater and bioaccumulation, attributed to the influx of the heavy metals from the surroundings, the nonferrous and the petrochemical industrial complex.

삼차신경 척수감각핵 박편에서 신경세포의 활성도에 미치는 아미노산 신경전달물질의 영향

윤찬송,김중수,이종흔 대한구강생물학회 1992 International Journal of Oral Biology Vol.16 No.1

This study was performed to elucidate the effects of excitatory amino acid(EAA) on medullary dorsal horn neurons in vitro and the interelations between EAA and substance P in medullary dorsal horn. Horizontal slices of caudal part of trigeminal sensory nucleus(500-600 ㎛ thick) were prepared from rats about 5 weeks old, then transferred and fixed in the recording chamber where it was preincubated and continuously perfused with aerated modified Krebs-Ringer solution. Intracellular recordings were carried out with glass microelectrode to record the changes of membrane potential and membrane input resistance induced by glutamate, aspartate and substance P perfusion. Glutamate and aspartate respectively depolarized medullary dorsal horn neurons and decreased membrane input resistance in a dose-dependent menner. Effect of glutamate and aspartate applied simultaneously on medullary dorsal horn neuron was not different from that of glutamate or aspartate, respectively. Substance P also depolarized medullary dorsal horn neurons and decreased membrane input resistance. Medullary dorsal horn neurons responding to glutamate also responded to aspartate and substance P.

한천, Sodium Alginate 및 Carrageenan첨가가 유과(부수게)바탕의 품질에 미치는 영향

김중만,전예정,박효숙,송영애,백승화,김명곤 한국식생활문화학회 2005 韓國食生活文化學會誌 Vol.20 No.1

This study was to evaluate effects of agar, sodium alginate and carrageenan on quality of Yugwa(Busuge) base. In the base preparation agar, sodium alginate and carrageenan were added 0.0, 0.1, 0.5, 1.0 and 3.0%(w/w), respectively. Volume, shape, hardness. color(L, a and b value), crude lipid content and sensory evaluation(taste and crispness) of the Yugwa base was measured. Volume of the base was higher than control in case of 0.1~0.5%(w/w) agar, sodium alginate and carrageenan, of which sodium alginate was the highest. Shapes were similar to control. Hardness and crude lipid content was decreased proportional to amount of addition of the three seesweed polysaccharides. the whiteness(L-value) was increased but the yellowness(a-value) and the redness(bvalue) decreased. Taste and crispness were increased in the case of 0.1~1.0%(w/w) of sodium alginate, but agar and carrageenan decreased.

복합인식기를 이용한 무제약필기체 숫자인식

박중조,송영기,이세영 慶尙大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.13 No.-

본 논문에서는 무제약 필기체 숫자의 인식을 위한 특징추출 방법과 인식기의 성능을 개선하기위한 인식기결합방법을 제시한다. 특징추출 방법은 영역분할특징, 교차특징, 그리고 방향특징으로 구성된다. 또한 단일 신경망을 이용했을 경우의 여러가지 문제점 즉, 수렴성, 계산의 복잡성 그리고, 정확성등을 개선하기 위한 방법으로 퍼지 적분을 이용하여 신경망을 결합하는 방법을 이용하였다. 캐나다 Concordia대학의 데이터를 이용하여 인식한 결과 97.7%의 인식률을 보였으며, 제시된 특징추출방법과 인식기의 결합이 좋은 성능을 지니고 있음을 보인다.

강산 및 강알칼리 음독에서 냉각 용액을 사용한 희석 요법과 중화 요법의 가능성

이중의,송형곤,김동훈,권운용,곽영호,서길준,윤여규 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: There is no effective treatment modality for caustic agent ingestion. Dilution and neutralization are prohibited because of the risk of secondary thermal injury. This experiment is designed to evaluate the amount of dilution and neutralization heat and to gauge the applicability of dilution and neutralization therapy using cold solutions to suppress the peak temperature. Methods: This is an in-vitro chemical experiment. HCl, CH3COOH, NaOH, and NH4OH are selected as representatives of strong and weak acids and strong and weak alkali, respectively. 20℃, 11.6M, 5.8M, and 2.9M solutions of each acid and alkali are made and mixed using a magnetic stirrer at a room air temperature of 28℃. The peak temperature, the duration above 40℃, and the heat amount are measured or calculated. Results: When a 11.6M HCl or NaOH solution is diluted with same amount of water, 32 or 18cal. per mL of HCl or NaOH is produced, respectively. HCl produces a significant peak temperature, but NaOH does not. The lower the concentration, the lower the amount of heat production. 11.6M CH3COOH and NH4OH solutions don't produce dilution heat.11.6M and 5.8M solutions of all acids and alkali produce destructive neutralization heat. However, 2.9M solutions produce neutralization heat which might be controllable. When a 11.6M HCl or NaOH solution is neutralized with a -10℃ 2.9 M NaOH or HCl solution, respectively, the peak temperature produced is below 40℃ and seems to add little thermal damage to viable tissue. Conclusion: Dilution and neutralization with a cold solution in cases of strong acid or alkali ingestion is a promising method to avoid thermal injury.

Pocine Adenovirus-3의 E1B Region의 鹽基序列 分析

朴鍾賢,宋載永,李重馥,玄芳勳,安東濬,車相昊,裵用泰,姜永源,Reddy, P S,全茂炯,安壽煥 충남대학교 생물공학연구소 1999 생물공학연구지 Vol.7 No.-

돼지 아데노바이러스(PAV-3). 6618주의 EIB region이 包含되어 있는 map unit 4.0에서 9.7까지의 유전자에 대한 1,984 bp의 염기서열을 決定하였으며, 이 結果를 알려진 여러 아데노바이러스 유전자와 비교하여 다음과 같은 결과를 얻었다. 1. PAV-3의 EIB유전자는 10개의 ORF로 구성되어 있으며, 그 중 아데노바이러스의 단백질과 유사성이 있는 것은 ORF1, ORF2 및 ORF3이었다. ORF1은 Ad41의 19kd 와 BAV-2에서의 EIB ORF2에서의 아미노산의 一致率은 각각 32%와 31%이었다. 2. ORF2는 Ad2 55kd protein과 tupaia adenovirus 44kd protein가 각각 34%로 아미노산 一致率이 가장 높았으며, Ad41의 52kd protein. BAV-3의 EIB ORF3에서도 33%의 一致率을 보였다. 3. ORF1은 61-666 uncleotide (606 bp), ORF 2에서는 429-1,850 uncleotide (1,422 bp)의 부위로 각각 202, 474 a.a로 構成되었으며, 예상되는 분자량은 20 kd와 52 kd이었다. 4. ORF3는 hexon-associated pIX유전자로 추정되며 내부에 1개의 polyadenylation signal(ATAAA)이 1938-1942 uncleotide에 위치하였으며, 이 부위는 TATA box (1937-1942 uncleotide)와 중복되어 존재하였다. Porcine adenovirus type 3 (PAV-3) does not cause severe infection in pigs. Adenovirus has been suggestive of live vaccine vector carrying foreign gene. One of insertion regions is delayed early (EIB) region. However, EIB region of PAV-3 has not been molecularly characterized to date. Nucleotide sequence of EIB of PAV-3 was determined. The EIB region was composed of 1,984 bp and located between 4.0 and 9.7 map units. Three potential open reading frames(ORFs) with low level of homology to other adenoviruses and a polyadenylation signal were identified in the rightward direction of genome. The nucleotide and the predicted amino acid sequences of EIB were compared to those of human and animal adenoviruses. One of the three potential ORFs. ORF1 encoded a polypeptide homologous to bovine adenovirus type 2(BAV-2) ORF2 and human adenovirus type 41(Ad41) 19 kd protein. ORF2 encoded a polypeptide homologous to human adenovirus type 2(Ad2) 55 kd protein, bovine adenovirus type 3(BAV-3) ORF3 and porcine adenovirus type 4(PAV-4) ORF2. The predicted protein of ORF1 had homology to those of Ad41 and BAV-2 with 32 and 31% respectively, whereas the deduced protein of ORF2 had homology to those of Ad2. BAV-3 and PAV-4 with 34, 33 and 29%, respectively.