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本 試驗은 1992年 4月부터 日本 三重大學生物資源學部 實驗圃場에서 公害에 비교적 약한 것으로 알려진 들깨(Perilla flutescens)의 6品種을 供試作物로 하여 1ppm, 0.5ppm 및 0.1ppm 등 낮은 濃度의 SO₂ gas를 開花結實期에 間歇的으로 20時間 處理하여 公害 地表植物로서의 利用 可能性이 있는지에 관한 試驗으로서 다음과 같은 몇가지 結果를 얻었다. 1.SO₂ gas 處理에 있어서 濃度 1ppm까지 에서는 葉綠素를 비롯한 莖徑, 穗數 및 光合成能力 等 거의 全 調査項目에서 有意性이 인정되었고, 0.5ppm 處理에 있어서도 葉綠素, 草長, 節數 및 穗數 等에서 有意性이 있었다. 2.SO₂ gas 處理에 따른 油脂含有率이나 脂肪酸 造成에 관한 差異는 없었다. 3.品種間에 있어서는 金海在來 및 紫蘇가 SO₂ gas에 대한 반응이 큰 品種으로 나타났다. A study was conducted to investigate useful possibility by air pollution indicator plant of perilla, and six varieties of perilla were intermittently treated during twenty hours by low concentration SO₂ gas (1ppm, 0.5ppm and 0.1ppm) in flowering and maturing stage, and this experiment was performed in Faculty of Bioresources, Mis University, Japan from April 1992. The results obtained were as follow: 1. Chlorophyll content, stem diameter, photosynthesis and almost characters were showed significant difference in SO₂ gas treatment of 1ppm concentration, and chlorophyll content, plant length, number of node and number of cluster were showed significant difference at also SO₂ gas treatment of 0.5ppm concentration. 2. In oil content and fatty acid composition, there was not showed significant difference by SO₂ gas treatment. 3. Kimhae and Andong local varieties and perillae folium were showed sensitive response about SO₂ gas treatment.
Italian ryegrass(Lolium multiflorum Lam.) 분획 leaf protein을 neutral detergent 용액 처리에 의하여 NDF 잔사를 얻어, actinase 처리에 의하여 단백질을 제거하고, neutral detergent fiber 標品으로 하였다. 콜레스테롤 無添加 기초식이(casein 20% 함유)에 NDF를 2.0% 混合하여, 7주령이 Wister strain 흰쥐 숫컷에 14일간 급여하였다. 그 결과 혈청 총콜레스테롤 농도는 카제인 급여군과 NDF 첨가군 사이에는 차가 없고, 대두 단백질 급여군에 비교하여 유의하게 높고, NDF 添加에 의한 영향을 보이지 않았다. 한편, 농도는 카제인 급여군과 유의차는 없지만, NDF 첨가에 의하여 감소하는 영향이었다. Unfractionated leaf protein was prepared from Italian ryegrass (Lolium maltiflorum Lam.) by heating the green juice at 85℃. Wet leaf protein was extracted repeatedly with acetone followed by 80% ethanol to remove lipid, pigment and specifically saponin. The neutral detergent fiber (NDF) proposed by Van Soest have been widely accepted for the determination of plant food. In this study, the effect of NDF on the serum cholesterol level in rats fed with cholesterol free diet was examed. NDF were incoporated in the diet at a level of 2.0% without cholesterol free diet. This diet was fed for 14 days to male Wistar strain rats with body weight of 80 90g. It was found no significantly change in serum lipids level in the neutral detergent fiber fed rats in cholesterol free diet.
In order to obtain a proper method of landscape design in nature dominant region, the concept of landscape design was analyzed by reviewing Cheju Tourist Comprehensive Development Plan(1973) and field survey of Cheju Island. The concept of Landscape design of Cheju Tourist Comprehensive Development Plan(1973) intended to conserve natural landscape which include rocks of fantastic shape, crave, ravine, fall, etc.. However, the concept to total landscape design which hamonizes natural environment and built environment was not considered. Consequently, built environment executed by Cheju Island. Thus, I suggest the proposed development plan should be harmonized with natural and artificial landscape, and it should provide less difficulty rehabilitating hamonized landscape.
참깨 種子를 25℃의 incubator에서 10日 동안 發芽시키면서, 發芽後 1日, 3日, 5日, 10日로 區分하여 試料를 採取하여 油脂含量과 脂肪酸組成의 變化를 比較 分析한 結果는 참깨 種子 發芽中 油脂含量의 變化는 發芽前 안산깨가 53.8%, 단백깨가 52.5% 發芽後 5日에 18.8%와 13.6%, 10日째에 9.3%와 7.3%로 減少하였다. 그리고 總脂質中의 脂肪酸 組成은 幼植物이 成長함에 따라 palmitic acid, stearic acid 및 linolenic acid는 增加하였으나, linoleic acid는 減少하는 傾向을 나타내었고, 發芽後 5日과 10日의 子葉部와 胚軸部의 脂肪酸 組成은 linolenic acid는 急激히 增加하였으나, palmitic acid, stearic acid 및 oleic acid 減少하는 傾向을 나타내었다. Sesame(Sesamum indicum L.) seeds were germinated at 25℃ for 10 days in order to investigate changes in the oil contents and fatty acid composition of total lipid. The sample for analysis was distinguished with 1st day, 3rd day, 5th day and 10th day after germination. In Ansan and Danbak varieties during the germination period, the oil contents were decreased continuously from 53.8%, 52.5% pre-germination 18.8%, 13.6% on the 5th day, and 9.3%, 7.3% on the 10th day after germination. In fatty acid composition of total lipids, palmitic acid, stearic and linolenic acid were increased, but linoleic acid showed the opposite tendency, according to the growth of seedling. In fatty acid composition of cotyledon and seedling axis, linolenic acid was increased rapidly, but palmitic acid, stearic acid and oleic acid decreasing trends showed during the germination periods.
육지면 7개 품종을 이면교배하여 얻은 F₁42 개 조합을 재료로 각 형질에 대한 유전력 및 교배집단에 따른 잡종강세의 정도를 산출한 결과는 다음과 같다. 유전력은 개화일수, 개서일수, 초장, 경직경, 절간장, 주당삭수, 삭중, 삭당 종자수, 삭당 실면중, 삭당 조면비율, 삭당 조면중, 종자 100립중, 섬유장, 종자장, 실면중에 대한 조면비율이 72.71%이상으로 높았다. 잡종강세는 주당삭수, 삭중, 삭당 실면중, 삭당 조면중이 정·역 교배 I·II집단에서 각각 正으로 유의하였고, 개화 일수, 개서일수, 초장이 각각 負 로 유의하였다. 형질에 따른 각 교배조합을 보면 삭당 실면중, 삭당 조면중, 주당삭수는 4×5(목포 7호×Stoneville 2-B)조합이 heterosis 나 heterobeltiosis에서 비교적 높았다. A seven parent diallel study was conducted to determine the inheritance of the heritability and heterosis in cotton(Gossypium hirsutum L.). Broad-sense heritability estimates were from 40.41 to 95.89%. In F₁ generation, days to flowering, days to maturity, plant height, stem diameter, length of stem internode, number of bolls per plant, boll weight, number of seeds per boll, seeds and lint weight per boll, lint percentage per boll, lint weight per boll, 100-seed weight, staple length, length of seed and lint percentage vs. seed and lint were over 72.71%. The degrees of positive heterosis of number of bolls per plant, boll weight, seeds and lint weight per boll, and lint weight per boll were higher, while days to flowering, days to maturity and plant height showed negative heterosis in the F₁ generation. Based on the degrees of heterosis and heterobeltiosis the crossed of Morpo #7×Stoneville 2-B showed high potential for yield.
Electrolytic treatment of dyeing wastewater by CHLORINECELL The objective this study was to investigate the feasibility for electrolytic treatment of dyeing wastewater. The experimental results are summarized as follows. 1. In case of the electrolytic treatment for dyeing raw wastewater at current density of 1.82A/㎠ and 15 minutes electrolysis duration, It was found that the COD removal efficiency and color were 31% and 280, respectively. 2. In case of the electrolytic treatment for NaCl added with dyeing raw wastewater at current density of 1.82A/㎠ and 15 minutes electrolysis duration, It was found that the COD removal efficiency and color were 59% and 230, respectively.
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.
The Korean government had tried to maintain agricultural product prices at the low level to keep wages low and thus stabilize industrial commodity prices for sustaining international competitiveness. As a result, the Korean agriculture now faces a deep crisis. In addition, the import liberalization of the agricultural commodities and the reduction of the domestic agricultural support level caused by the Uruguay Round agricultural negotiations will deepen the crisis. The objective of this study is to provide policy directions for the achievement of the price policy objectives such as the reduction of price and income instability, the increase of the food self-sufficiency, and the enhancement of the level of prices and incomes. The major findings of the study are summarized as follow : 1. By 'Agreement of Agriculture' of UR and 'Schedule' of Korea. "Total Aggregate Measurement of Support(AMS)" will be reduced from 1,719 billion won to 1,490 billion won(the reduction of 13.3 percent) during the implementation period(1995∼2004). However, if the government minimizes the agricultural import by the measures such as 'special safeguard provisions', 'sanitary and phytosanitary measures', 'countervailing duties', 'state trading enterprise', etc. and maintains the current level of the domestic support by the measures such as 'more favourable treatment for developing country', 'domestic support policies for which exemption from the reduction commitments : public stockholding for food security purposes, domestic food aid, direct payments to producers, decoupled income support, etc.', and 'De-minimis', the price policy could be continued at the current size and level. 2. Ten years' grace period might be the last opportunity for the survival of Korean agriculture. The price and the quantity of the government procurement should be kept at the proper level so that the farmers only concentrate on the commodity choice and production management, just like the agricultural price policy programs of the EU and the U.S. 3. Price policy is still important for the coordination of the time lag between the structural adjustment and the cost-down, for the provision of personnels in charge of the structural adjustment. And the price policy should not be subordinated to the structure policy and the general price control policy. 4. For the balanced development of agriculture, the system of goal and measures by commodity should be established and the level and balance should be implemented to the price and profitability by commodity.
To examine the agricultural availability of paper sludge, this study investigated the degradation rate of sludge, CO₂ generation out of soil treated with sludge and the degration characteristics of sludge in soil 1. Degradation rate of paper in soil at weeks after treatment was 19.0% at natural temperature and 28.0% at incubation temperature(30℃) 2. The changes of T-C, T-N and C/N ratio of paper sludge in soil at 12 weeks after treatment were 15.5%, 0.22% and 71, respectively, at natural temperature, and 14.5%, 0.24% and 60, respectively at incubation temperature. 3. The changes of pH in soil treated with paper were 6.7∼7.4 at natural temperature and 6.1∼8.0 at incubation temperature. 4. CO₂ generations in soil treated with 1.0%, 3.0% and 5.0% of paper sludge at 12weeks after treatment were 247mg/100g, 334mg/100g and 458mg/100g, respectively, at natural temperature and 385mg/100g, 550mg/100g and 618mg/100g, respectively, at incubation temperature(30℃)
This study was conducted to clarify the current farmland problems in Korean agriculture and to suggest the policy directions to solve the problems. Major findings of the study are as follows : 1. We can summarize the current farmland problems as the growing domination of capital over farmland and the crisis of the owner-operated land property system established by the Farmland Reform. 1) The farmland price has increased to the level of highly exceeding the land price based on agricultural rent due to the exterior factors such as the rapid increase of the urban land price and the encroachment on the farmland by the capital. And this tendency acts as the driving force to make the owner-operated land property system to change in quality and to collapse. 2) Since 1980s more and more farmlands have been owned by non-farmers. The tenancy of farmlands has rapidly increased and the owner-operated land property system is being broken down. The enlargement of the tenancy of the farmlands is due to such factors as the pressure toward the farm-size enlargement, the agricultural mechanization, the high farmland price, the tendency toward possessing farmland as an asset, and the growing ownership of farmlands by non-farmers. 3 ) nd the crisis of the owner-operated land property system in deepening by the contradiction between the new productive forces achieved by the farm mechanization and the peasant farming system. 2. We must reorganize the farmland ownership and utilization to overcome the crisis of the owner-operated landed property system. 1) To secure the farmland sufficiently, [the Agricultural Promoting Area] must be enlarged and the encroachment on the farmland be regulated more strictly. 2) The qualification of farmland ownership and the dealings regulations must not be relaxed excessively. 3) More powerful measures to press non-farmers to sell their farmlands must be taken. 4) The land policy to stabilize land price and the system to collect capital gains by the increase of land price must be more strengthened. 5) The rights of tenants must be more strengthened. And the way to manage and utilize the farmlands in a region collectively must be found.