全南北地域의 酸性비 및 酸性눈에 대한 調査硏究

朱興珪,朴明述 조선대학교 환경연구소 1989 環境公害硏究 Vol.6 No.-

This study analyzed a acid rainfall phenomenon through setting up a network of measurement at 31 sites around Chonnam and Chonbuk provinces from July to November of 1987. The results of this analysis are as follows. 1. There was little change of pH value classified by month. The distribution value was estimated within pH 5.2 to pH 6.4 at the whole investigated sites. 2. The pH value of site 23 was 5.0 to 5.2 during the whole investigated periods. The site had the lowest value in pH as well as in the variable value of measurement. Because it is adjacent to a big city, also it is under the influence of a seasonal wind (what is called a Monsoon), this is the result by a long distance transportation of the fine pollutants and gas state materials being discharge from the city. 3. Presenting pH 5.0 to pH 5.6 of site 21 is because of dropping of a short distance by rain out and wash out of fine particles and gas state materids being discharge from Iri Industrial Estate and Iri-city. 4. In the factory district and the Industrial estate, the acid ion density was low and lots of dust of soil were Showed because of an increase in the acid materials such as SO_(4). The acidity brought low in the site where largely comprised unpaved road and farm land. 5. Since, even if this investigated site is studded with many factorial districts, the district still comprises large farm land and forest land, dropping phenomenon of acid rain is on low side rather than others up to now.

臨海工團 廢水가 沿岸海水에 미치는 影響에 관한 硏究 : 영양염류를 中心으로 on the nutrititional salts

주흥규,김남종 조선대학교 환경연구소 1989 環境公害硏究 Vol.6 No.-

This is the conclusion of the study on some nutritional salts included in the wastewaters and the sewages through 2 years, from 1986 to 1987. These are the wastewater being treated and discharged to the neighboring kwangyang Bay from the factories which are discharging the wastewater in the internal area of Yeochon Industrial Estate(Y.I.E), the sewage of Ssangbong area, the external area of Y.I.E, being discharged to the neighboring kamak Bay, the water treated by the night-soil treated plant in Yeosu city, the wastewater of Factory-H in this area and the sewage of the Yeondeung stream being flowed into Yeosu Harbor. 1. In Contents of PO_(4)-P and TKN in the wastewater being treated and discharged to the kwangyang Bay from 14 factories in Y.I.E the PO_(4)-P showed respectively 2.348mg/l at factory D and 2.020mg/l at factory A-I (main plant), and TKN showed 38.862mg/l and 71.337mg/l. These are the highest contents compared with the other factories. In the other factories, PO_(4)-P is 0.08-0.149mg/l and TKN is 0.350-11.994mg/l. 2. The ratio of treatment on PO_(4)-P and TKN by the current wastewater treatment is irregular and the average ratios of treatment in general show 85.4% in PO_(4)-P and 66.4% in TKN. 3. The loading amounts of the nutritional salts loaded the neighboring kwangyang Bay from the waste and treated waste of 14 factories in Y.L.E are 16.77kg/l, in PO_(4)-P and 484.46kg/l each when the water is originally wasted. 4. The contents of the nutritional salts in the Ssangbong sewage A and B of the external area Y.I.E discharged to kamak Bay, the treated water of the night-soil treated plant in Yeochnn city and the waste and treated water of factory-H in Yeosu are as follows. PO_(4)-P are 0.689mg/l, 1.085mg/l, 1.103mg/l and 0.0027mg/l in order and TKN are 15.654mg/l, 24.194mg/l, 28.675mg/l and 0.980mg/l. 5. The contents of PO_(4)-P and TKN in the Yeondeung stream which han an indirect influence on kamak Bay are 0.884mg/l and 15.234mg/l each, and the loading amounts by one day are 38.633kg and 665.756kg. 6. According to the measurement result, the entire area of kamak Bay close by the land also is the same. But the other areas belong to the Eutrophicated sea area.

石灰混合土의 壓縮强度에 關한 實驗的 硏究

朴興奎 관동대학교 1984 關大論文集 Vol.12 No.2

This study was attempted in order to search for unconfined compressive strength of Lime-Soil Mixtures, physical, chemical and mechanical test were conducted to find out the standard properties of soil to be used. Various lime contents used in this test were 3%,6%,9% and 12%, and the compressive strength was tested after 7days, 14days and 28days of standard curing in the above each lime content respectively. Obtained the results summarized as follows. 1. Lime content between strength was obtained as follow; OD Soil q=1.511L+13.2(r=0.465) KL Soil q=1.333L+9.0(r=0.500) OL Soil q=1.500L+8.0(r=0.483) 2. In molding the specimens with the optimum moisture content, the maximum strenght appeared at the wet side of the optimum moisture content. 3. According to increase of curing days, unconfiend compressive strength of Line-Soil mixtures increased the rate of increase of the early curing period was large, but approximately 7 day was surfficient to harden Lime-Soil mixtures completely. 4. Optimum moisture content increased with increase of the lime content, but maximum dry density decreased with lime content.

水稻作에 있어서 生産要素間 代替關係 分析 : 農機械의 勞動强度 輕減效果를 中心으로 with Special Reference to Labor-Intensity per Hour

裵興圭 東亞大學校 1984 東亞論叢 Vol.21 No.2

The objectives of this paper are two-folds; 1) estimate Allen partial elasticity of substitution(AES) between the factor-pairs land, labor and farm machinery in rice production. 2) to analyze the changes of factor combination when the effect of lightening labor-intensity of machinery is considered. In order to fulfill the objectives, the translog cost function was aplied to estimastion AES, the method of deriving labor-intensity index per hour was discussed, and then, the cross section data extracted from 80 leading rice farms were analyzed. The results of this analysis are as follows; 1. In case that labor-intensity per hour is not considered, the AES of factor pairs labor-farm machinery is 0.3859, and that of farm machinery-land is 0.3240, while the AES between labor and land is 0.2334. All of AES are positive and smaller than unity. Therefore, these three facotrs are competive from each other, but substitution between factors are not easy. 2. However, when labor-intensity per hour is taken consideration, the AES between labor and farm machinery is 1.5079, while those of factor pairs land-farm machinery and labor-land are -1.0198 and 0.6226, respectively. This results indicate that subsititution farm machinery for labor become easier and the combination of land and farm machinery turns into complementary relationship in this case. 3. All of the own price elastically and cross elasticity of factor demand are relativelygreater in case labour-intensity is taken consideration than in case it is not. They are, however, smaller thn unity in absolute value. This results imply low level of factor mobility in rice production. 4. Comclusionally, farm machinery not only save farm labor in quantity but lighten the degree of labor strength in quality. Therefore, it is mor realistic to take into consideration the effect of lightening labor-intensity of farm machinery in estimating elasticity of factor substitution. However, the method of estimating labor-intensity in this analysis is very rough. Hence, it is necessary to dvelope the precise estimating method for labor-intensity.

다 속성의사결정 방법을 이용한 자체생산 및 외주 결정모델

황흥석,조규성 동의대학교 산업기술개발연구소 2001 産業技術硏究誌 Vol.15 No.-

This paper is concerned with the make-or-buy decision model for manufacturing systems. For the purpose of considering the multi-attribute in the decision making, We used two-step approach such as : in the first step, we used the multi-attribute analysis method using AHP(Analytic Hierarchy Process) and in the second step we used fuzzy set ranking methodologies to integrate the special decision problems; those of multi-objective, multi-criterion, and multi-attribute. We have proposed a procedure for the comparative judgement and priority for make-or-buy decision and also for the optimal resource allocation. First the rank-ordered priority lists of the projects are determined based on the AHP, then the aggregate fuzzy set rank order was computed. Finally, we have developed a systematic and practical program for simple and easy calculation of all the algorithms. It is found that the model validated by comparative computations in various make-or-buy example problems in manufacturing system.

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.

GIS기반의 실시간 통합화물운송시스템 계획에 관한 연구

황홍석,김호균,조규성 한국경영과학회 2002 經營 科學 Vol.19 No.2

According to the fast-paced environment of information technology and improving customer services, the design activities of logistics systems improve customer centric services and delivery performance implementing e-logistics system. The fundamental design issues that arise in the delivery system planning are optimizing the system with minimum cost and maximum throughput and service level. This study is concerned with the integrated model development of delivery system with customer responsive service level for DCM, Demand Chain Management. We used a two-step approach for this study. First, we formulated the supply, center facility planning using stochastic set-covering problem and assigned the customers to the supply center using clustering algorithm. Second, we developed vehicle delivery planning for a supply center based on GIS, GIS-VRP. Also we developed a GUI-type computer program for proposed method for supply center problem using GIS and Geo-DataBase of Busan area. The computational results showed that the proposed method was very effective on a set of test problems.

학습부진아의 학습기술이 진로장애요인에 미치는 영향

공인규,정흥식,안창규 釜山大學校 敎育硏究所 2006 敎育硏究 Vol.16 No.1

WTO 체제하 농산물 유통정책의 방향

배흥규 東亞大學校 大學院 1996 大學院論文集 Vol.21 No.-

The objective of this study is to identify problems and prepare improvement policies of agricultural marketing structure under the WTO system haing a goal of free trade. For the objectve, the details of UR agricultural and servie agreement and the present situation of agricultural marketing system are discussed. major findings of the study are summarized as follows; 1.In spite of rpid changes in agricultural marketing circumstances, the present situations of agricultural product marketing system have many problems such as small scale issues, low level of market competition power, inefficiencies of marketing process and illegal marketing activities. 2.To prepare for free trade of agricultural produts, 1)it is necessary to organize farmers and consumers. especially, collective marketing activities of farmers can realize scale economy, enhance the marketing efficiency and reduce the illegal marketing activities. 2)The existing various kinds of regulations and orders on agricultural marketing should be readjusted to a realistic level. 3)the investment in a agricultural marketing facilities such as public wholesale market, market information system, grading and standardization system etc. should be increased.

석탄회의 MR 특성

朴興奎 관동대학교 1993 關大論文集 Vol.21 No.2

This paper is to elucidate the MR-CBR correlation and stress-strain behavior of coal ash throught the MR test. We've tried to check the possibility of the massive use of coal ash as a construction material, and so gathered to experiment the coal ash from a few thermal power plants and the weathered granite soil in the middle area of the peninsula. The results are: 1. MR properties of weathered granite soil and bottom ash are found as in sandy soil. 2. The change of the value of CBR is to be considered in order to get the MR value from the CBR value of coal ash.