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푸드뱅크 기탁식품의 안전성 확보를 위한 HACCP 제도 적용
김철재,박현신,배현주,이지해,양일선,강혜승 한국식생활문화학회 2002 韓國食生活文化學會誌 Vol.17 No.3
The purpose of this study was to analyze the problems arising from the actual conditions of the Foodbank, and to implement the HACCP system as a solution in terms of increasing the safety of donated food within the Foodbank. In order to apply HACCP system, the entire Foodbank working process such as preparation, collection, transportation, division, and distribution was considered and analyzed to decide the application point for CCPs. Donated foods mainly consisted of processed foods, raw materials, lunch boxes, and cooked foods from mass catering establishments, which dominated over the others in terms of quantity. Cooked foods were divided into three groups based on menu-types and processing methods. Temperature, pH, and aw were measured on cooked foods, and Total Plate Count, Coliforms, E. coli, Salmonella spp., Staphylococcus aureus, Listeria monocytogenes, and E. coli O157:H7 were conducted in order to apply a HACCP plan. Form these experiments, temperature, pH, and aw of donated food were likely contributed to microbial growth. Donated foods before HACCP implementation showed high numbers in terms of total plate count and Coliforms, both well over the acceptable standard levels. By setting the CCPs on maintenance of donated food below 10℃ and using a 75 ℃ reheating method, microbiological hazard levels were able to be controlled and lowered. From these results, it is concluded that in order to guarantee food safety, foods donated to the Foodbank must not only maintain a reasonable level of initial microbiological growth, but also must be handled properly through time and temperature controls within the Foodbank system. Furthermore, in terms of implementing the HACCP plan within the Foodbank management structure, basic food safety and sanitation measures, such as reheating facilities and various cold chain systmes such as refrigerated vehicle for food transportation are importantly needed. The training and education of Foodbank personnel and management in areas such as awareness of hygiene and safe food handling and practice are also required and necessary.
A Comparative Study on the Prediction of KOSPI 200 Using Intelligent Approaches
Bae, Hyeon,Kim, Sung-Shin,Kim, Hae-Gyun,Woo, Kwang-Bang Korean Institute of Intelligent Systems 2003 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.3 No.1
In recent years, many attempts have been made to predict the behavior of bonds, currencies, stock or other economic markets. Most previous experiments used the neural network models for the stock market forecasting. The KOSPI 200 (Korea Composite Stock Price Index 200) is modeled by using different neural networks and fuzzy logic. In this paper, the neural network, the dynamic polynomial neural network (DPNN) and the fuzzy logic employed for the prediction of the KOSPI 200. The prediction results are compared by the root mean squared error (RMSE) and scatter plot, respectively. The results show that the performance of the fuzzy system is little bit worse than that of the DPNN but better than that of the neural network. We can develop the desired fuzzy system by optimization methods.
Thermal Fatigue - Resistant EMCs(Epoxy Molding Compounds) for Microelectronic Encapsulation
Bae, Jong Woo,Kim, Won Ho,Cho, Suk Hyeon,Hong, Yong Woo,Shin, Jung Eun,Lee, Sang Hyun 한국화학공학회 2000 Korean Journal of Chemical Engineering Vol.17 No.1
Highly thermal conductive EMCs (Epoxy Molding Compounds) should be considered for the alleviation of thermal stress-related problems caused by low thermal conductivity, and high elastic modulus of EMCs and by a mismatch of CTE (Coefficient of Thermal Expansion) between EMCs and the Si-wafer. Compared to crystalline silica-filled EMCs, alumina filled EMC improved the value of thermal conductivity by 100% and lowered the value of CTE by 50%. As a result, compared to typical crystalline silica-filled EMCs, the thermal fatigue resistance of alumina-filled EMC was improved by sixfold.
Bae, Gi-Sang,Kim, Min-Sun,Park, Kyoung-Chel,Koo, Bon Soon,Jo, Il-Joo,Choi, Sun Bok,Lee, Dong-Sung,Kim, Youn-Chul,Kim, Tae-Hyeon,Seo, Sang-Wan,Shin, Yong Kook,Song, Ho-Joon,Park, Sung-Joo WJG Press 2012 WORLD JOURNAL OF GASTROENTEROLOGY Vol.18 No.25
<P>To determine if the fraction of Nardostachys jatamansi (NJ) has the potential to ameliorate the severity of acute pancreatitis (AP).</P>
Bae Hyeon,Kim Youn-Tae,Kim Sung-Shin,Vachtsevanos George J. Korean Institute of Intelligent Systems 2005 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.5 No.3
The objectives of this study were to introduce the easiest and most proper applications of datamining in industrial processes. Applying datamining in manufacturing is very different from applying it in marketing. Misapplication of datamining in manufacturing system results in significant problems. Therefore, it is very important to determine the best procedure and technique in advance. In previous studies, related literature has been introduced, but there has not been much description of datamining applications. Research has not often referred to descriptions of particular examples dealing with application problems in manufacturing. In this study, a datamining roadmap was proposed to support datamining applications for industrial processes. The roadmap was classified into three stages, and each stage was categorized into reasonable classes according to the datamining purposed. Each category includes representative techniques for datamining that have been broadly applied over decades. Those techniques differ according to developers and application purposes; however, in this paper, exemplary methods are described. Based on the datamining roadmap, nonexperts can determine procedures and techniques for datamining in their applications.
Effects of Exposure Period on the Developmental Toxicity of 2-Bromopropane in Sprague-Dawley Rats
Shin, In-Sik,Lee, Jong-Chan,Kim, Kang-Hyeon,Ahn, Tai-Hwan,Bae, Chun-Sik,Moon, Chang-Jong,Kim, Sung-Ho,Shin, Dong-Ho,Kim, Jong-Choon Korean Society of ToxicologyKorea Environmental Mu 2008 Toxicological Research Vol.25 No.2
Recently we reported that 2-bromopropane (2-BP) has maternal toxicity, embryotoxicity, and teratogenicity in Sprague-Dawley rats. The aims of this study are to examine the potential effects of 2-BP administration on pregnant dams and embryo-fetal development, and to investigate the effects of metabolic activation induced by phenobarbital (PB) on developmental toxicities of 2-BP. Pregnant rats received 1000 mg/kg/day subcutaneous 2-BP injections on gestational days (GD) 6 through 10 (Group II and Group IIII) or 11 through 15 (Group IV). Pregnant rats in Group III received an intraperitoneal PB injection once daily at 80 mg/kg/day on GD 3 through 5 for induction of the liver metabolic enzyme system. Control rats received vehicle injections only on GD 6 through 15. All dams underwent caesarean sections on GD 20 and their fetuses were examined for external, visceral, and skeletal abnormalities. Significant adverse effects on pregnant dams and embryo-fetal development were observed in all the treatment groups, and the maternal and embryo-fetal effects of 2-BP observed in Group II were higher than those seen in Group IV. Conversely, maternal and embryo-fetal developmental toxicities observed in Group III were comparable to those seen in Group II. These results suggest that the potential effects of 2-BP on pregnant dams and embryo-fetal development are more likely in the first half of organogenesis (days $6{\sim}10$ of pregnancy) than in the second half and that the metabolic activation induced by PB pre-treatment did not modify the developmental toxic effects of 2-BP in rats.
Bae, Eun Joo,Chen, Bai Hui,Yan, Bing Chun,Shin, Bich Na,Cho, Jeong Hwi,Kim, In Hye,Ahn, Ji Hyeon,Lee, Jae Chul,Tae, Hyun-Jin,Hong, Seongkweon,Kim, Dong Won,Cho, Jun Hwi,Lee, Yun Lyul,Won, Moo-Ho,Park, Medknow PublicationsMedia Pvt Ltd 2015 Neural regeneration research Vol.10 No.6
<P>The tumor suppressor p63 is one of p53 family members and plays a vital role as a regulator of neuronal apoptosis in the development of the nervous system. However, the role of p63 in mature neuronal death has not been addressed yet. In this study, we first compared ischemia-induced effects on p63 expression in the hippocampal regions (CA1–3) between the young and adult gerbils subjected to 5 minutes of transient global cerebral ischemia. Neuronal death in the hippocampal CA1 region of young gerbils was significantly slow compared with that in the adult gerbils after transient global cerebral ischemia. p63 immunoreactivity in the hippocampal CA1 pyramidal neurons in the sham-operated young group was significantly low compared with that in the sham-operated adult group. p63 immunoreactivity was apparently changed in ischemic hippocampal CA1 pyramidal neurons in both ischemia-operated young and adult groups. In the ischemia-operated adult groups, p63 immunoreactivity in the hippocampal CA1 pyramidal neurons was significantly decreased at 4 days post-ischemia; however, p63 immunoreactivity in the ischemia-operated young group was significantly higher than that in the ischemia-operated adult group. At 7 days post-ischemia, p63 immunoreactivity was decreased in the hippocampal CA1 pyramidal neurons in both ischemia-operated young and adult groups. Change patterns of p63 level in the hippocampal CA1 region of adult and young gerbils after ischemic damage were similar to those observed in the immunohistochemical results. These findings indicate that higher and longer-term expression of p63 in the hippocampal CA1 region of the young gerbils after ischemia/reperfusion may be related to more delayed neuronal death compared to that in the adults.</P>