동부경남지역 시설원예 도입농가와 비도입농가의 특성 및 비교분석

배흥규,김진수 東亞大學校生命資源科學大學附設 農業資原硏究所 1996 農業生命資援硏究 Vol.5 No.1

To investigate the differences of characteristics and attitudes between greenhouse-horticulture farms and non-greenhouse-horticulture farms, 276 farm households were randomly selected from the 10 farm villages with active greenhouse-horticulture farming, located in the eastern region of Kyungnam Province. Of them, 204 farms were doing greenhouse farming and 72 farms were not. Significant differences were found between greenhouse farms and the others. The operators of the greenhouse farms had relatively low average age and farm experience. But they had relatively high education. The ratio of woman and off-farm employment in the composition of operators wee higher in non-greenhouse farms. The greenhouse farms had more household members, larger farm size, more farm machinery and less livestock. Most of the differences of farm characteristics represent the labour condition of the farm. Not many non-greenhouse farms intend to begin greenhouse farming mainly because of labour and investment capital shortage. Very few greenhouse farms seem to enlarge their enhouse size in the near future. Non-greenhouse farms were relatively more optimistic bout the future of greenhouse-horticulture agriculture. The main reasons for greenhouse farms' pessimistic prospect were over-production and import liberalization of greenhouse-farming products.

화훼류에 대한 부산지역 소비자의 행태 분석

배흥규,김진수 東亞大學校 1996 東亞論叢 Vol.33 No.-

The objective of this analysis is to conduct an empirical study on consumer's flower consumption behavior and purchase activities. To achieve this objective, a case study on consumer households was conducted in Pusan during March- June 1996. 387 questionnaires were analyzed by tables and Tobit Regression Model. The major findings of this research are as follows. 1. As the consumers surveyed didn't purchase flowers so often and didn't expend much money for consuming flowers, flower consumption was at a very low level. It was found that the flower demand had strong seasonal variation and more than half of the consumer usually bought flowers for making a gift and commemorating various events 2. Most of the consumers purchased flowers from traditional small size retailers. They had some difficulties in consuming flowers because there was no convenient flower shops in their neighborhood and they didn't know very well how to take care of flowers. 3. According to Tobit regression model, it was statistically significant that flower consumption was positively related with the experience of housewife about flower arrangement, the age of housewife and the household owing a car, but negatively related with the work status of the housewife. 4. Therefore, for expanding and stabilizing of flowers demand, flower marketing system should be improved. The flower retailing should be especially diversified so that flowers consumers easily purchase the various flowers at the near-by shop. The flower retailers should have much knowledges of taking care of flowers and flower arrangement. The flower cooperatives should play an active role in the establishment of information system to offer flower consumers not only the exact flower prices but also the methods of controlling flower and flowers arrangement.

농협의 미곡판매사업에 관한 연구

배흥규,김진수 東亞大學校生命資源科學大學附設 農業資源硏究所 1994 農業生命資援硏究 Vol.3 No.1

The objective of this study is to investigate the methods to activate the rice marketing activities of agricultural cooperatives. For the objective, agricultural cooperatives and farm households in Kyungnam area and consumer households in Pusan area were sampled and surveyed during February and March 1992. Major findings of the study are summarized as follows : 1. Rice marketing activities of agricultural cooperatives were in a slump due to the low quality of rice, deterioration of competitiveness against the merchants, insufficient and old-fashioned rice milling facilities, deficiency of systematic rice sales through cooperatives, and lack of personnels specialized in the rice marketing. However, farmers seemed to favor the increased involvement of the agricultural cooperatives in the rice marketing. 2. The measures to activate the rice marketing activities of the agricultural cooperatives included: 1) agricultural cooperatives should participate in the price stabilization and the demand and supply adjustment functions monopolized by the government; 2) the rice processing complex should mainly be managed by the agricultural cooperatives; 3) labeling and product differentiation of rice should be implemented; 4) the agricultural cooperatives should participate in the rice price stabilization programmers; 5) co-ordinated rice marketing of the cooperatives should be activated and the number of rice-specific shops of agricultural cooperatives in the urban area should be increased; 6) the government intervention in the time and the quantity of the sale of rice marketed by agricultural cooperatives should be eliminated, 7) and finally the autonomous management of the agricultural cooperatives should be guaranteed so that business items and management system proper to the regions could be developed.

경남 동부권지역 시설원예농가의 유통활동 분석

배흥규,김진수 東亞大學校生命資源科學大學附設 農業資源硏究所 1995 農業生命資援硏究 Vol.4 No.1

The objective of this study is to analyze marketing activities of greenhouse horticulture farms in the eastern region of Kyungnam province. To achieve this objective, 204 greenhouse horticulture farms at 10 villages of the region were surveyed by prepared questionnaires during March-April 1995. The major findings of the analysis are as follows: 1) Greenhouse horticulture farms seemed to have troubles in finding sales outlets. A big portion of the greenhouse production was still being sold to private wholesale markets outside the legal marketing system, whereas most of the standardized products were being sold to legal public wholesale markets. The role of agricultural cooperatives was very weak in the marketing of greenhouse horticultural products. To solve the problems, market outlets such as export and direct sales should be developed jointly by producers, cooperatives, and local and central governments, and agricultural cooperatives should actively and practically participate in the marketing of greenhouse horticultural products. 2) Selling products before harvesting was popular in some horticultural products such as water mellon and spring cabbage, Many farms were dissatisfied with low contract prices, but they were usually doing it mainly because of labor shortage. Old greenhouse facilities should be mechanized and automated as soon as possible to overcome the labor shortage problem of the farms. 3) Standardization of greenhouse horticultural products at the farm level was principally based on eye-measuring by size, appearance and color. Constructing facilities for joint standardization would help lessen the labour burden of the farms and enhance the degree of commodity value of greenhouse horticultural products.

부산지역 소비자의 미곡소비행태 분석

배흥규,김진수 東亞大學校生命資源科學大學附設 農業資源硏究所 1993 農業生命資援硏究 Vol.2 No.2

The objective of the study is to conduct an empirical study on consumers' rice consumption behaviors and purchase activities. To achieve this objective, a case study on consumer households was conducted in Pusan during March 1992. 310 questionnaires collected were analyzed by tables and discrete regression models. The major findings of the research are as follows. 1. More than half of the consumers purchased the rice at least once a month from the traditional rice retailer. The quantity each purchase usually did not exceed 24㎏. It was found that a household owning a car or having more members directly purchased from the rural markets, farmers or the reliable relatives. Rice consumption was positively related with the size and the proportion of teenagers of a household, but negatively related with the education level and work status of the housewife. Without any standard or regular buying date, many consumers purchased the rice when they ran out of rice. Though 80% of the consumers surveyed wanted a small package of rice, only 10% of the consumers actually used to purchase in a small package. 2. Consumers had a strong preference to high-quality rice. A household with a highly-educated or aged housewife seemed to prefer to it than others. It was found that consumers were willing to pay more price to the clean or pollution-free rice. The price premium for the clean or pollution-free rice was positively related with the education level and the age of the housewife, and the income of the households. But the available information on the quality of the rice was quite limited to consumers. The only source of the information on the quality of rice for most consumers was the rice retailer, though it was widely believed that an illegal and unfair rice marketing was prevalent in the retail market. 3. Only 3.5% of the consumers surveyed had the experience of buying the government rice recently and 60% of consumers answered that the government rice was lower in quality than other rices. 11% of consumers surveyed recently bought the agricultural cooperative rice and most of them believed in the quality and the weight of the rice. The main reason that many consumers did not consume the agricultural cooperative rice seemed to be the less availability of the shops selling the rice around the household. Since 41.6% of the consumers surveyed would purchase the rice imported if it were cheaper and better in quality and they were especially interested in the quality of the rice, it seems to be very important to enhance the quality of the domestic rice varieties in order to compete with the imported rice. 4. Therefore, a rice marketing system for the distribution of high-quality rice should be developed to meet the changing rice consumption behavior. First, the government should reform the current purchase and release policy in order to establish the distribution system of high-quality rice. Second, agricultural cooperatives should play an active role in the establishment of grading and standardization of rice to prevent the illegal and unfair rice marketing. Third, rice retailing should be liberalized so that consumers easily purchase rice in a small package at the near-by shop. Fourth, the production of low-polluted rice should be encouraged and the quality certification system to guarantee the low pollution of rice needs to be devised.

석이로부터 분리한 페놀성 화합물의 phospholipase A_2 저해활성

김진우,송경식,유익동,장현욱,유승현,배강규,민태진 충남대학교 생물공학연구소 1997 생물공학연구지 Vol.5 No.-

호알카리성 진균 Cephalosporium sp. RYM-202가 생산하는 alkaline xylanase (CX-III)의 작용에 의해 xylan 기질로부터 생성되는 주요 가수분해 산물은 xylobiose와 중합도가 4 이상인 xylooligosaccharides이었다. 이 효소는 xylobiose에 대한 분해능을 가지고 있지 않지만 xylotriose로부터는 xylobiose를, xylotetraose로부터는 xylobiose와 xylotriose를 주산물로 형성하였다. 이러한 결과들은 CX-III가 transglycosidase 활성을 소유하는 전형적인 endo-type xylanase임을 보여준다. N-bromosuccinimide에 의한 CX-III의 화학적 변화 실험 결과 효소 1분자 당 2개의 tryptophan 잔기가 활성에 관여하는 것으로 나타났다. 그러나 iodoacetamide 및 diethylpyrocarbonate에 의한 효소활성의 저해효과는 나타나지 않음으로써 이 효소의 활성부위에 cysteine과 histidine 잔기가 필수적이지 않음이 확인되었다. The hydrolysis products formed from birchwood xylan by the action of an alkaline xylanase (CX-III) from alkalophilic Cephalosporium sp. RYM-202 were xylobiose and xylooligosaccharides polymerized with more than 4 sugar molecules. This enzyme was not active on xylobiose but readily attacked xylotriose accumulating xylobiose as a major product. The predominant end-products from xylotetraose by CX-III were xylobiose and xylotriose. These results indicate that the enzyme is typically endo-type xylanase possessing transglycosidase activity. Chemaical modification of CX-III with N-bromosuccinimide revealed that two tryptophan residues per molecule of CX-III were essential for its catalytic activity on xylan. On the other hand, iodoacetamide and diethylpyrocarbonate did not influence the activity of the enzyme, suggesting that cysteine and histidine residues are not involved in the active site of this alkaline xylanase.

치수 치근단 병소의 전구 위험요인으로서의 제 2 형 당뇨의 역할에 관한 소고

김진희,배광식,서덕규,홍성태,이윤,홍삼표,금기연 大韓齒科保存學會 2009 Restorative Dentistry & Endodontics Vol.34 No.3

Diabetes Mellitus (DM) is a syndrome accompanied with the abnormal secretion or function of insulin, a hormone that plays a vital role in controlling the blood glucose level (BGL). Type 1 and 2 DM are most common form and the prevalence of the latter is recently increasing. The aim of this article was to assess whet her Type 2 DM could act as a predisposing risk factor on the pulpo-periapical pathogenesis. Previous literature on the pathologic changes of blood vessels in DM was thoroughly reviewed. Furthermore, a histopathologic analysis of artificially-induced periapical specimens obtained from Type 2 diabetic and DM-resistant rats was compared. Histopathologic results demonstrate that the size of periapical bone destruction was larger and the degree of pulpal inflammation was more severe in diabetic rats, indicating that Type 2 DM itself can be a predisposing risk factor that makes the host more susceptible to pulpal infection. The possible reasons may be that in diabetic state the lumen of pulpal blood vessels are thickened by atheromatous deposits, and microcirculation is hindered. The function of polymorphonuclear leukocyte is also impaired and the migration of immune cells is blocked. leading to increased chance of pulpal infection. Also, lack of collateral circulation of pulpal blood vessels makes the pulp more susceptible to infection. These decrease the regeneration capacity of pulpal cells or tissues, delaying the healing process. Therefore, when restorative treatment is needed in Type 2 DM patients, dentists should minimize irritation to the pulpal tissue under control of BGL. 당뇨(Diabetes Mellitus)란 혈당을 조절하는 인슐린의 분비나 기능에 장애를 야기하는 질환으로 인슐린 의존성 여부에 따라 제 1 형과 제 2 형으로 분류된다. 본 종설은 최근 증가 추세에 있는 제 2 형 당뇨가 치수 치근단 병소의 병인 과정에 전구 위험 요인으로 작용할 수 있는지를 평가 하고자 문헌고찰을 통해 당뇨의 병인 과정에서 특징적으로 나타나는 혈관 합병증에 관해 알아보고, 부가적으로 제 2 형 당뇨 쥐 모델에서 인위적인 치수감염 후 얻은 치근단 조직의 조직병리학적 분석을 시행하였다. 조직학적 관찰 결과 제 2 형 당뇨 쥐에서 대조군에 비해 치수 치근단 병소의 크기가 증가하였고, 치수 염증 반응도 심하게 나타난 것으로 보아 당뇨 자체가 숙주를 감염에 취약한 상태로 만드는 전구 위험요소로 작용하였음을 알 수 있었다. 이러한 이유로는 첫째, 당뇨 시 전반적으로 나타나는 혈관 내 죽상 침착(atheromatous deposits)에 의해 혈관 내벽의 두께가 두꺼워져 미세 순환의 장애는 물론 탐식 세포의 기능 저하, 면역 세포의 혈류 이동이 차단되어 치수 감염 시 쉽게 치근단 병소로 이환될 가능성이 높고, 둘째 치수 혈관에서 특징인 측부 순환(collateral circulation)의 부재에 따른 살균성 다형핵 백혈구의 활동 억제를 포함한 미세 혈관계의 취약성으로 인해 치수 조직의 재생능이 저하되어 추가적인 감염원의 공격에 대한 방어 및 치유 저하를 더욱 심화시키기 때문인 것으로 사료된다. 따라서 제 2 형 당뇨 환자의 수복치료 시 치과의사는 당뇨 조절 하에서 치수 조직의 자극을 최소화하기 위한 세심한 처치가 필요하다.

Soil-Geotextile System의 이론 및 실험적 연구

김수일,배규진 연세대학교 산업기술연구소 1984 논문집 Vol.16 No.1

The effects of geotextile for embankments on weak clays are studied through the laboratory model experiments and the theoretical analysis based on "load-decrease effect" caused by geotextile. The experiments are carried out in four stages; no woven fabrics between clay-crushed stone boundary, fabrics between boundary with no initial pretensioning of fabrics, and fabrics, and fabrics between boundary with two different initial pretensionings of fabrics. In all stages, vertical drains utilizing non-woven fabrics are installed in the clay layer in grid pattern to accelerate the consolidation. The experimental model has dimension of 32㎝x330㎝ in plane. The height for the container is 60㎝. The 47㎝ height of crushed stone embankment is constructed over the 50㎝ deep clay layer. When geotextiles are employed, the geotextiles are laid between clay-crushed stone boundary. The measurements are carried out for 10 days which is equivalent to the time required for the primary consolidation. Theoretical analysis of soil-geotextile system is carried out by applying "load-decrease effect" caused by geotextile to the theoretical analysis of plane strain consolidation without geotextile. For the analysis of plane strain consolidation without geotextile, the computer program developed by A. verruijt is used. The program is based upon a sub-division of the problem field into triangular elements, with the displacement components and the pore stress defined in each node, and linear interpolation in the elements. The predictions of deformations at the base of model embankment show relatively good agreement with the measured values. Especially, the predictions of heaving deformations with geotextile show fairly good agreement with the measured values.

연약 점토지반 성토시 Geotextile 효과의 실험적 연구

김수일,배규진 연세대학교 산업기술연구소 1982 논문집 Vol.14 No.1

Geotextile effects for embankments on weak clays are studied through the laboratory model experiments. The experiments are carried out in four stages; no geotextiles between clay-crushed stone boundary, geotextiles with no pretensioning, and two different geotextile pretensionings. The experimental model has dimensions of 32cm x 330cm in plan. The height for the clay container is 60cm. The 47cm height of crushed stones are laid on top of the 50cm clay layer. When geotextiles are employed, the geotextiles are laid between clay-crushed stone boundary. The time dependent deformations are measured utilizing the LED indicating lamp matrix inserted in the crushed stones and the dial gages put on top of the clay layer where the crushed stones are not laid. The measurements are carried out for 15days which is approximately equivalent to the 50% consolidation level. From the experiments, it is found that the geotextiles are more effective in horizontal displacement reduction than in vertical displacement reduction, especially when the geotextiles are pretensioned before embankments. It is also found that the time dependent settlement behavior is almost identical whether geotextiles are applied or not, and that the vertical displacements when geotextiles are employed are linearly decreased with increasing tensile stresses developed in the geotextiles.

강의 수소취화에 대한 국부영역에서의 수소의 거동(Ⅰ) : 지연파괴의 수소집적에 미치는 응력 및 소성변형의 영향

이영호,이진우,배명일,고준빈,이규천 충남대학교 산업기술연구소 2001 산업기술연구논문집 Vol.16 No.1

Hydrogen embrittlement cause decrease of it's mechanical properties during hydrogen dissolved in steels. Many mechanisms of hydrogen concentration researches have done, but it is not clearly known yet. In this study the effect of plastic deformation and external stress on mechanism of hydrogen concentration by high temperature hydro-genation treatment were investigated. The main results are as follow : 1)For short time fracture process, a defect rate of chemical potential energy is an important factor on hydrogen concentration for delayed fracture of steel processed with high temperature hydrogen. 2)For long time fracture process, the important element is long range diffusion of hydrogen due to the rate of effective hydrogen density and plastic deformation. 3)hydrogen concentration as plastic deformation vary in proportion to slope of plastic deformation. 4)Hydrogen concentration due to the effect of external stress, but this effect is limited in short range. 5)External stress is an acceleration element for delayed fracture of steel.