자동차용 부품 제조회사의 생산관리용 전산시스템 개발

주운기,윤철호 선문대학교 중소기업기술지원연구소 2001 선문공대 연구/기술 논문집 Vol.6 No.1

자동차용 부품을 생산하는 중소기업체에서 회사내 업무 전산화를 위해 활용할 수 있는 전산시스템을 개발하였다. 자동차용 부품 생산은 주로 이산(discrete) 생산이고 주문(order) 생산품이 많으므로, 제품 및 부품에 대한 관리를 수작업으로 하기는 어렵다. 따라서, 전산시스템을 이용한 관리가 필요한데, 본 연구개발에서는 현재의 업무 처리 방식, 생산 환경, 전산망의 상황 등을 고려하여 기존 시스템의 문제점들을 해결하고 개선한 전산시스템을 개발하였다. The objective of the study is in development of a software for a small and medium company. Our software will be utilized to improve the planning and control process in discrete and order production environment. Most of companies have at least one software for the production planning and control. By the way, there exist few companies having a software of good fitness of the company. This study develops a new software to have good fitness for the company I by modifying and improving the existing one of the company.

Cyclophosphamide가 흰쥐 혀침샘의 점액질에 미치는 영향에 대한 조직화학

조운복,정길남,조기진,이응희 釜山大學校 師範大學 科學敎育硏究所 2006 科學敎育硏究報 Vol.33 No.-

항암 및 항종양 치료제인 CP가 흰쥐의 혀 미각샘과 점액샘의 형태 및 그 분비물인 점액질에 미치는 영향을 PAS, AB pH 2.5, AB pH 2.5-PAS, AB pH 1.0, AF pH 1.7-AB pH 2.5 및 HID-AB pH 2.5 염색법으로 연구하였다. 1. CP군의 혀 미각샘의 형태적인 변화는 장액샘꽈리의 위축 및 파괴, 장액세포의 세포질과립의 감소 및 소실, 세포질의 공포변성 그리고 일부 도관상피세포의 점액화였으며, 혀 점액샘의 형태적 변화는 점액샘꽈리의 확장, 융합, 파괴, 점액세포의 세포질과립 감소 및 소실, 세포질의 공포변성 그리고 도관상칙의 현저한 점액화였다. 2. 혀 미각샘의 중성점액질이 대조군에 비해 현저히 감소하였으며 극소수의 미각샘세포에서 산성 점액질이 나타났다. 혀 점액샘의 중성점액질과 산성점액질은 대조군에 비해 다같이 현저히 감소하였고 산성점액질 중 sulfomucin은 현저히 감소하였으나 sialomucin은 다소 증가하는 경향을 나타내었다. The effect of cyclophophamide(CP) on the mucins of rat lingual salivary gland was examined by prelectin histochemical methods. Sprague-Dawley rats weighing about 250-300 gm were divided into control and CP groups. Control group was administrated by only drinking water for one week, CP group which was admirdstrated by 0.04% CP in the drinking water for one week. Mucins properties were stained with PAS, AB pH 2.5, AB pH 2.5-PAS, AB pH 1.0, AF pH 1.7-AB pH 2.5 and HID-AB pH 2.5 methods. 1. For the morphologic changes, the lingual gustatory glands of CP group, compared with the control group, were noted atrophy of serous adrd, decrease and disapperance of zymogen granules and vacuolation tn the serous cell. The mucification of duct cells was appeared in CP group. And the lingual mucous glands of CP group, compared with the control group, showed atrophy of mucous acini, and decrease of mudgen granules in mucous cells. Especially, many enlarged, fused mucous acini, and vacuolated mucous cells were detected. The mucification of duct cells increased very notably in CP group. 2. Neutral mucin of the lingual gustatory gland, and add and neutral mucins of lingual mucous gland decreased very remarkably in CP group compared with the control group. Especially, the decrease of acid mucin was more remarkable than that of neutral mucin in the mucous gland. But, in CP group, the mucous cells which secrete sulfomudn decreased, and the mucous cells which secrete sialomucin increased remarkably.

외인성 Estrogen에 노출된 조피볼락, Sebastes schiegeli 치어의 혈장 VTG과 GPT의 변화

황운기,강주찬 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.3

Changes of plasma vitellogenin (VTG) and glutamate pyruvate transaminase (GPT) were examined for determining whether hepatocyte was damaged during the process of VTG induction in the juvenile rockfish, Sebastes schlegeli exposed to exogenous estrogen (estradiol-17β, E₂). Rockfishes were intraperitoneally injected with E₂(5 mg/kg B.W.) in 70% ethanol and plasma sampling were extracted at 0, 1, 3, 6, 9, 12, l5 days after E₂ administration. VTG and GPT were then analyzed by SDS-PAGE and Reitman-Frankel method, respectively. VTG band was detected at a molecular weight position of 175 kDa on Day 3 after E₂ administration. This band became more distinct at 6 days, but its was gradually thinned with time-course, and not detected at 15 days. GPT was suddenly increased at 1 days after E₂ administration and highest GPT was detected at 3 days. However, OPT was gradually decreased with time-course as the change of VTG. These results suggest that the process of VTG induction by exogenous E₂ damage to hepatocyte, and plasma GPT was temporarily increased in the juvenile rockfish.

흰쥐 혀 침샘 점액질에 미치는 paraquat 독성에 대한 녹차의 완화효과

조운복,정길남,조기진 釜山大學校 師範大學 2003 교사교육연구 Vol.42 No.-

흰쥐의 혀 미각샘 및 점액샘과 그 점액질에 미치는 paraquat 독성과 녹차의 paraquat 독성완화 효과를 대조군, paraquat 투여군, Paraquat-녹차 투여군, 녹차 3주 투여후 paraquat-녹차 투여군으로 나누어 prelectin 조직화학법으로 연구하였다. Paraquat 투여군 미각샘은 대조군에 비해 장액샘꽈리 위축, 장액세포의 과립의 감소 및 소실, 공포변성 등이, 점액샘은 점액샘꽈리의 위축, 확장 또는 융합, 점액세포의 과립의 감소, 공포변성 및 미성숙 샘꽈리 등이 대조군에 비해 많이 관찰되었다. 미각샘 및 점액샘 도관상피의 점액화도 관찰되었다. Paraquat-녹차 투여군과 녹차 3주 투여후 paraquat-녹차 투여군에서는 paraquat 투여군의 미각샘과 점액샘의 형태적 변화가 대조군으로 회복되는 경향을 나타내었으며 후자에서 더 현저하였다. Paraquat 투여군의 미각샘의 중성점액질과 점액샘의 산성 및 중성점액질 양이 대조군에 비해 현저히 감소하였다 Paraquat 투여군의 혀 점액샘에서 sulfomucin을 분비하는 점액세포는 대조군에 비해 현저히 감소하였으나 sialomucin을 분비하는 점액세포는 오히려 증가하는 경향을 나타내었다. Paraquat-녹차 투여군과 녹차 3주 투여후 paraquat-녹차 투여군에서 대조군으로 회복되는 경향을 보였으며 후자에서 더 현저하였다. 이상의 결과로 보아 paraquat는 혀 미각샘 및 점액샘과 그 분비물인 점액질에 강한 독성을 나타내며 이 독성에 대해 녹차가 완화효과를 나타냄을 알 수 있고 녹차 3주 투여후 paraquat-녹차 투여군에서 녹차-paraquat 투여군보다 완화효과가 더 크게 나타나는 것으로 보아 paraquat 독성에 대한 완화효과는 녹차를 투여하는 시기와 그 양에 따라 더 효과가 있고 녹차에 paraquat 독성 발현억제 및 예방물질이 있음이 사료되어진다. Paraquat toxicity and the alleviating effects of green tea on the toxicity to the rat lingual mucins were investigated through prelectin histochemical methods. Mucosubstances properties were stained with PAS, AB pH 2.5, AB pH 1.0, AB pH 2.5-PAS, AF pH 1.7-AB pH 2.5 and HID-AB pH 2.5 methods. Sprague-Dawley male adult rats(250∼300g) were divided into one control group and three experimental groups, DP group which was administrated by only 0.04% paraquat in the drinking water for one week, GP group which was fed by both 0.04% paraquat and 3% green tea for one week, and GGP group which was applied with both 0.04% paraquat and 3% green tea for one week after 3% green tea in the drinking water was dosed for three weeks. For the morphological changes, the lingual gustatory glands of DP group, compared with the control group, were noted atrophy of serous acini, decrease and disappearance of zymogen granules, and vacuolation in the serous cells. And the lingual mucous glands of DP group showed atrophy of mucous acini, and decrease of mucigen granules. Especially, many enlarged, fused mucous acini, and vacuolated mucous cells were detected. Mucification of duct cells increased very notably in DP group. The groups of feeding green tea showed recovering tendency. The recovery degree of GGP group was greater than that of GP group. And GGP group recovered almost up to the state of the control group. Neutral mucin of the gustatory gland, and acid and neutral mucins of mucous gland decreased very notably in DP group compared with the control group. The decrease of acid mucin was more notable than that of neutral mucin in the mucous gland. And DP group showed that the mucous acini which secrete strong sulfomucin decreased, but the mucous acini which secrete sialomucin increased remarkably. GP and GGP group appeared the recovering tendency to the control group. The recovery of GGP group, comparing the degree, was more remarkable than that of GP group. And GGP group recovered almost up to the state of the control group. Consequently, the above results suggest that paraquat exhibites the toxicity which affects the histological structure and mucosubstances properties in the lingual salivary glands, and also suggest that green tea alleviates this toxicity. The different results of recovering tendency of paraquat toxicity in GP and GGP group indicate that the alleviating effects of green tea on paraquat toxicity to the histological structure and mucosubstances in the lingual salivary glands depend on the dosing time and the amount of green tea. Furthermore, green tea is presumed to have effects to recover from paraquat toxicity, to suppress exhibition of paraquat toxicity and to prevent paraquat toxicity.

2次元-表層密度流場의 解析에 있어서 境界層近似 適合性 檢討 : K-ε모델의 경우 with k-ε Model

金基興,咸契運,朴浚一 慶尙大學校生産技術硏究所 1995 生産技術硏究所論文集 Vol.11 No.-

Solving buoyant surface jet, the most important problem is the expression of turbulent transport. In this study, the compatibility of boundary layer approximation of k-ε model which has been applying to predict the turbulent transport in buoyant surface jet are considered. The results which has been comparing the computations of boundary layer approximation equations and full equation with experiments showed. As the result of this study, the hypothesis of boundary layer approximation does not express the transport by mean buoyancy in buoyant surface jet exactly, the hypothesis of boundary layer approximation is not valid for simulation of buoyant surface jet with k-ε model.

전자 사전 관리 시스템의 구현

오행언,양기철 木浦大學校 情報産業硏究所 1999 情報産業硏究誌 Vol.7 No.-

Electronic dictionary is an essential component of many systems such as natural language processing systems, language learning systems and so on. There are, however, not many efficient systems or tools for building electronic dictionaries. An efficient dictionary management system for building and managing electronic dictionaries is implemented in this paper. There are many efficient functions in the implemented system. Also, a German electronic dictionary built by the implemented dictionary management system is introduced.

리조트 산업의 활성화를 위한 美 Las Vegas 개발사례 연구

백영호,이의철,기운서 釜山大學校 師範大學 1999 교사교육연구 Vol.37 No.-

As we studied Las Vegas with the changes of the times, we found that Las Vegas which tourist used to via has become the destination of journey, and that a city for man adults has become the comprehensive resort city for the whole family. The main causes for these changes lied on the hotels and casinos in Las Vegas. The hotels and casinos that simply supplied lodging and gaming seems to change into the place that has multidimensional mass resort spot with elements of sports and leisure. The changes of the character of the hotels and casinos seem to be in gear with both internal and external changes of game industry represented as casino. The internal change of game industry emerged from the change of visitor and user's preference of games; visitors to casino have moved to mid-low batting class, and to young women class and family tourist. They are reported to prefer somewhat soft slot machine and video games to traditional table games. Now casino games settle down as the part of entertainment for public. This is also related to the external change of game industry which means cognitional change of public. Due to the political endeavor of authority of Nevada and Las Vegas that recognized casino as an industry and foster it, the cognition that casino is not for the gamblers but for a kind of entertainment for public has been spreaded widely. By constant improving through market extension and adding sports-leisure facilities, authority of Las Vegas try to Las Vegas into the mass resort city with game industry. This seems to be great full of suggestions. Today, casino has become an object of active leisure activity, taking off its gambling image. In addition, from the point of economic view, it is in the spotlight as high value added industry that has great effects such as improvement of international payments, activation of local economy, increase of income of resident and insurance of tax revenues. As we studied about Las Vegas, casino games have become a part of mass resort industry by adding leisure-sports facilities and playing space for children and have changed into the factor of important entertainment that leads resort industry. Thus, to develops Korean resort industry, together with existed leisure-sports facilities, factor of game industry like casino seems to be considered.

TBT의 노출에 따른 넙치, Paralichthys olivaceus의 생존, 성장 및 산소소비의 변화

강주찬,황운기,지정훈 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.3

This study was carried out to examine the effects of his (tribytyltin)oxide (TBT), endocrine disrupting compounds (EDCs), on the changes of survival, growth and oxygen consumption rate in the oliver flounder, Paralichthys olivaceus. Oliver Flounders were exposed to sublethal concentration of TBT (0, 1.67, 3.20, 6.30 and 12.50㎍/L) during 6 weeks. Survival rate was decreased in a concentration and exposure period-dependent way and suddenly the reduction of more than 20% occurred at TBT concentration greater than 3.20㎍/L after exposure 6 weeks. Growth rate and feed efficiency significantly decreased at concentration greater than 3.20㎍/L. Oxygen consumption rate was also decreased in a concentration-dependent way and significantly decreased to 17, 48 and 67% than that of the control at the TBT concentration of 3.20, 6.32 and 12.50㎍/L, respectively. This study revealed that high TBT concentration (≥ 3.20㎍/L) reduced growth and oxygen consumption rates of the juvenile oliver flounder suggesting potential influence on the natural mortality of Paralichthys olivaceus in the coastal areas.

피조개 발의 점액질에 대한 조직화학적 연구

최병태,조기진,홍말숙,정권순,조운복 釜山大學校 師範大學 1995 교사교육연구 Vol.31 No.-

피조개 발의 조직학적 구조는 hematoxylin-eosin염색 및 Weigert iron hematoxylin염색을, 점액질 성상을 검색하기 위하여 PAS반응, diastase 침지 후 PAS반응, alcian blue pH 2.5염색, alcian blue pH 1.0염색, alcian blue pH 2.5-PAS염색, alcian blue pH 1.0-PAS염색, aldehyde fuchsin pH 1.7-alcian blue pH 2.5염색 및 0.25% toluidine blue염색을 실시하였다. 피조개의 발은 상피, 상피하결합조직 및 근층으로 이루어져 있었으며 상피는 단층섬모원주세포로 되어 있었다. 상피하결합조직 및 근층에 다세포성 점액선인 발선이 발달되어 있었고 도관은 결합조직과 상피세포를 거쳐 개구되어 있었다. 근층은 종주근, 수직근 및 횡근섬유로 구성되어 있었다. 점액질의 조성을 보면 상피세포섬모에는 sialomucin만을, 상피세포는 중성점액질만 함유하고 있었다. 상피세포 및 결합조직내 점액도관에는 산성과 중성점액질의 혼합성인 것과 산성점액질만 함유한 것이 혼재하나 전자가 더 많았다. 산성점액질의 성상으로 보아 대부분이 강 sulfomucin을 가지며 일부는 약 sulfomucin과 sialomucin의 혼합성이었다. 대부분 발선의 점액선포에 대한 점액질 조성은 점액도관과 유사하였으나 일부 상부발선의 점액선포는 중성점액질만을, 하부발선의 점액선포는 sialomucin만을 함유하였다. This study was performed to investigate the histological structure and the histochemical properties of the mucosubstances in the foot of Anadara broughonii. For the histological structure, hematoxylin-eosin and Weigert iron hematoxylin staining were used. The mucosubstances stained with PAS, PAS-diastase, 0.25% toluidine blue, alcian blue pH 2.5, alcian blue pH 1.0, alcian blue pH 2.5-PAS, alcian blue pH 1.0-PAS, aldehyde fuchsin pH 1.7-alcian blue pH 2.5 methods. The foot was composed basically of three layers: epithelium, subepithelial connective tissue and muscular layers. The foot was lined by simple ciliated columnar epithelial cell. Foot glands consisted of multicelluear mucous acini were present in the subepithelial connective tissue and muscular layer. The mucous duct of foot glands was distributed from connective tissue to epithelial cells, and open onto the surface of the foot. The foot muscle traveled in three planes as longitudinal, transverse and vertical muscle fiber. About the properties of mucosubstances on the foot, cilia of epithelial cell contained sialomucin only and epithelial cell neutral mucosubstances only. Most of mucous duct within epithelial cells and connective tissue showed a mixture of acidic and neutral mucosubstances, while a few mucous ducts were contained acidic ones only. Among acidic mucosubstances, notable strong sulfomucin were found in most mucous cell of duct, and a mixture of weak sulfomucin and sialomucin appeared in a few cells. The properties of mucosubstances in the food glands were similiar to those of mucous duct. But a few mucous acini contained neutral mucosubstances and sialomucin only in upper and lower portion of foot gland, respectively.

넙치, Paralichthys olivaceus 치어의 생존, 성장 및 산소소비에 미치는 수은의 만성적 독성

강주찬,황운기,지정훈,김성길,김재원 한국어병학회 2002 한국어병학회지 Vol.15 No.1

산업활동의 증가로 인해 해양에 유입되는 수은 (Hg)이 저서성 연안정착 어류인 넙치, Paralichthys olivaceus 치어의 생존, 성장, 사료효율 및 산소소비에 미치는 영향을 조사하였다. 6주 동안 0~0.13mg/L의 아치사 농도에서 넙치를 사육하며 Hg 독성에 대한 영향을 조사하였다. Hg 농도와 노출기간이 증가할수록 생존육은 감소했으며 6주 후, 0.05mg/L 이상의 농도 구에서 생존율이 급격히 감소했다. 성장률과 사료효율 또한, 각각 0.028mg/L (P<0.01)와 0.05mg/L (P<0.01) 이상의 농도 구에서 현저하게 감소하였다. 산소소비율은 0.05mg/L와 0.13mg/L의 농도구에서 각각 대조 구에 비해 25(P<0.01)와 32% (P<0.01) 감소해, 유의적인 차이를 나타내었다. 이상의 결과로부터 Hg 독성은 넙치의 성장, 사료효율 및 산소소비와 같은 생리적 기능을 저해해 생존율을 감소시키는 것으로 나타났다. Effect of mercury (Hg) toxicity on survival, growth, feed efficiency and oxygen consumption were examined in the juvenile olive flounder. Paralichthys olivaceus. Fishes were exposed to sublethal concentrations of Hg ranging from 0 to 0.13mg/L for 6 weeks. Hg reduced survival rate in a concentration and exposure period-dependent way and suddenly reduction occurred at Hg concentrations greater than 0.05mg/L after 6 weeks. Growth rate and feed efficiency also significantly decreased at greater than 0.028 and 0.05 mg/L respectively. Oxygen consumption rate was significantly decreased to 25 and 32% than that of the control at the Hg concentration of 0.05 and 0.13 mg/L respectively. These results suggest that Hg toxicity inhibit physiological function including growth, feed efficiency and oxygen consumption in the juvenile olive flounder, resulting in survival failure at high concentration.