• 제목/요약/키워드: domestic journal

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공항용수 원단위 산정 및 용수 사용량 추정방법 (Estimation of water unit factor and water demand of domestic airports)

  • 김태영;김태환;허동;박희경
    • 상하수도학회지
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    • 제23권2호
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    • pp.231-239
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    • 2009
  • The purpose of this research is to provide more reliable water unit factors of domestic airports by investigating of general informations related to the domestic airport. The informations of domestic airports such as passengers, settled population of airports, building areas and water amount are investigated to estimate the unit factor of water of domestic airports. The domestic airports are divided into three type such as central airport, position airport and general airport. Through analysis of relationship between water amount and the others, the unit factor of water could be calculated. The water amount of central airport as Incheon international airport and position airports could be estimated by unit factor of settled population. The others could be estimated by unit factor of building area.

국내산과 국외산 참깨의 이화학적 특성 비교 (Physicochemical Properties of Introduced and Domestic Sesame Seeds)

  • 강명화;류수노;방진기;강철환;김동휘;이봉호
    • 한국식품영양과학회지
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    • 제29권2호
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    • pp.188-192
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    • 2000
  • To obtain basic information for the quality evaluation, the introduced or domestic sesame seeds were investigated to measure proximate components (crude protein, ash, mineral and oil) and isolated by preparative HPLC system for lignan contents. Although crude protein contents were the highest in Sudan sesame seeds, lipid, ash and mineral contents were not significantly(p<0.05) different between introduced and domestric sesame seeds. Unsaturated fatty acids such as oleic and linoleic acids were the highest in the domestic sesame seeds. The Mg content of domestic sesame seeds also was larger than that of introduced sesame seeds. A Ca content of domestic sesame seeds, however, was significantly (p<0.05) lower than that of China. Lignan contents, the most important component known as antioxidant, were significantly (p<0.05) higher in domestic sesame seeds than other sesame seeds tested. Our findings suggest that domestic sesame seed has the best quality in terms of the functional components.

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수입(輸入)코르크와 국산(國産)코르크의 물리(物理)·기계적(機械的) 성질(性質)에 관(關)한 연구(硏究) (Studies on the Physical and Mechanical Properties of Imported and Domestic Corks)

  • 김병로
    • Journal of the Korean Wood Science and Technology
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    • 제21권4호
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    • pp.45-54
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    • 1993
  • This study examines the differences in structures, physical and mechanical properties between domestic(Quercus variabilis Blume) and foreign(Quercus suber L.) corks. The results obtained are as follows: 1. The cork tissue consists of cork cells, lenticels, sclereids and dark-brown zone. There was a significant difference in ratio of cork cells between foreign cork(93 %) and domestic cork(87 %). The ring width and width of late cork of the foreign cork were wider than those of domestic cork. But the percentage of late cork of domestic cork was richer than that of foreign cork. The size of cork cell of foreign cork was larger by about two times than that of domestic cork. 2. The density was slightly higher in domestic cork(0.22 g/$cm^3$) than in foreign cork(0.19 g/$cm^3$). During first 24 hours, the amount of water absorption of the foreign cork was greater than that of domestic cork. However, after 24 hours, the tendency was reversed. The level of EMC was higher in domestic cork than in foreign cork. Total shrinkage in the radial and tangential directions was larger in domestic cork than tn foreign cork. In the longitudinal direction, the tendency was reversed. There was no difference in total swelling in three woody directions between the two corks. 3. The modulus of elasticity in compression in the logitudinal and tangential direction was higher in domestic cork than in foreign cork, but the tendency was reversed in the radial direction. Both corks showed 95% of recovery rate after 24 hours when they were compressed by 0.5. There were no differences in tension strength and Brinell,s hardness bet ween domestic and foreign corks.

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Sensory Properties of Sponge Cake Prepared with Domestic and Imported Cake Flour

  • Kim, Hae-Young;Oh, Myung-Suk;Kim, Hee-Sun
    • Food Quality and Culture
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    • 제2권1호
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    • pp.1-5
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    • 2008
  • In this study, consumer acceptance and sensory intensity evaluations were performed on sponge cakes prepared with domestic and imported cake flours. Specific volume data as well as cross-sectional photograph observations confirmed that the imported flour sample group had greater volume than the domestic flour groups. The imported flour sample group also had a significantly (p<0.05) higher mean overall acceptability score at 5.82; however, it was not significantly different from the domestic white flour sample group (5.40). There was no significant difference in overall texture acceptance between samples prepared with imported and domestic white flours; however, their scores were significantly higher than that of the domestic whole flour group (p<0.05). Consumer acceptances of color significantly decreased as the orders of cake group prepared using the imported, domestic white, and domestic whole flours with the values of 6.48, 5.72 and 4.61, respectively (p<0.05). Acceptance of the air cell and the acceptance and intensity of sweetness did not show significant differences between the imported and domestic white flour group.

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비대칭 정보하에 무역정책 설계 (How to Design Trade Policy under Asymmetric Information?)

  • 이양승
    • 무역학회지
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    • 제46권2호
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    • pp.107-119
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    • 2021
  • Using a trade policy, government can shift profits from foreign firms to domestic firms. This paper will reexamine how asymmetric information can affect the equivalence of tariff and quota in a duopoly, where one domestic firm competes with one foreign firm. It can happen that the domestic firm has informational advantage against the government. Within this framework, the domestic firm has private information about own marginal cost as well as the foreign firm's. The domestic firm would exploit the advantage to draw a favorable policy from the government. When the government is misled, social welfare would decline. This paper will guide how the government can extract information from the domestic firm by offering a menu of tariff or quota. Previous studies showed that quota demands information more than tariff. With the principle of revealed information, the domestic firm chooses tariff (quota) if the marginal cost of foreign firm is low (high). The quota level will be high (low) if the marginal cost of domestic firm is high (low). To prevent misrepresentation, the domestic firm should be charged when quota is implemented. When the quota level is low, the domestic firm is charged additionally. This paper can contribute to the literature of trade policy and information.

African Maternal Origin and Genetic Diversity of Chinese Domestic Donkeys

  • Lei, Chu-Zhao;Ge, Qing-Lan;Zhang, Hu-Cai;Liu, Ruo-Yu;Zhang, Wei;Jiang, Yong-Qing;Dang, Rui-Hua;Zheng, Hui-Ling;Hou, Wen-Tong;Chen, Hong
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권5호
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    • pp.645-652
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    • 2007
  • The origin of domestic donkeys in China has been controversial. To clarify the origin of Chinese domestic donkeys, we investigated the partial mitochondrial D-loop sequences of 126 samples from 12 native breeds. The results revealed two mitochondrial origins, lineage Somali and lineage Nubian of African wild ass detected in Chinese domestic donkeys. Lineage Somali was predominant in Chinese domestic donkey breeds. The pattern of genetic variation in ass mtDNA D-loop sequences indicated that the two lineages Somali and Nubian from China had undergone population expansion events. In a combined analysis of lineages Somali and Nubian between previously published sequences from other countries/regions and sequences of Chinese domestic donkeys, the results indicated that the two lineages of Chinese domestic donkeys were from Africa and supported the African maternal origins of Chinese domestic donkeys. There was no obvious geographical structure in Chinese domestic donkey breeds, but the population showed abundant mtDNA diversity. The spread routes of Chinese domestic donkeys were also discussed.

Kano 모델에 기반한 국내외 조리교육 서비스 품질속성 비교분석 (Comparative Analysis of the Educational Service Quality of Domestic and Foreign Culinary Schools using the Kano Model)

  • 최정운;김태희
    • 한국식품영양학회지
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    • 제27권4호
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    • pp.630-640
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    • 2014
  • The purpose of this study was to use the Kano model to compare and analyze the educational service quality attributes of domestic and foreign culinary arts schools. For this purpose, a questionnaire-based survey was completed by 312 students who were studying in domestic and foreign culinary schools. The results of the study indicated that 23 of the total 25 attributes were significantly different between domestic and foreign culinary arts school.; the "minium 4 hour-kitchen class" and "mandatory internship program" were classified into "indifferent quality" for domestic schools and a "must-be quality" for foreign schools; "well-organized internship guidebook", "kitchen class limited to 20 students", "introducing the latest food or restaurant trends", "library with the latest publications related to major", "objective instructor's evaluation", "detailed instructor's evaluation", "instructor's field experience", and "decent communication skills on the part of the instructor" attributes were classified into "attractive quality" for domestic schools and "must-be quality" for foreign schools; and "kitchen classes operated by block system", and "foreign instructors for each ethnic cuisine" attributes were classified into "indifferent" and "attractive quality" for both domestic and foreign schools, respectively. Also, according to the Better and Worse quotient designed by Timko, there were more attributes for domestic school than for foreign school that scored over 0.5 in the Better category and fewer attributes for domestic than the foreign scored over 0.5 in the Worse category. The results also indicate that, students in foreign schools receive an educational service of better quality than students in a domestic school. As a result, this research suggests significant implications to develop culinary educational services.

Cross Fertility between the Wild Japanese Quail in the Weishan Lake Area and Domestic Quail

  • Xu, W.;Chang, H.;Wang, H.Y.;Chang, G.B.;Du, L.;Lu, S.X.;Yi, H.Q.;Xu, Q.;Xu, M.;Wang, Q.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제16권10호
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    • pp.1421-1423
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    • 2003
  • Cross fertility between wild Japanese quail and domestic quail was explored in an experiment conducted on 18(3♂, 15♀)wild Japanese quails in Weishan Lake area, 18(3♂, 15♀)medium-sized domestic quails and 18(3♂, 15♀)pint-sized domestic quails, which were divided into nine groups. This study demonstrated that wild quail could succeed in crossing with domestic quail,producing fertilized eggs and hatching first filial generation. The findings indicated that there were no reproduction isolation between the wild Japanese quail and domestic quail, and that the best cross combination was between wild male quail and medium-sized domestic female quail, in which the fertility rate and hatchability of fertilized eggs amounted to 42.86% and 29.63% respectively. Based on the results, a new way could be adopted to protect, exploit and utilize genetic resources of wild quail.

기혼여성의 수입 정장의류와 국산 정장의류의 구매동기 연구 (Buying Motivations for Imported and Domestic formal Suits among Married Women)

  • 박혜정;박재옥
    • 복식문화연구
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    • 제11권1호
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    • pp.1-10
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    • 2003
  • The purpose of this study is to identify differences that married exist between married women´s buying motivations for imported and domestic formal two piece suits and to test the role of socioeconomic variables on those differences. Sample selection criteria included married women lit in8 in ,seoul. Korea, between ages 30∼59. Purposive sampling method was used to secure respondents It with experience with imported formal two-piece suits. Of 400 distributed. 246 usable questionnaires were returned. Statistical analysis of results included factor analysis, and paired t-tests. For both imported and domestic suits, the most important buying motivation was utilitarian, with qualify the most important consideration. Purchases of domestic suits were more influenced by factors such as advertisements, economics, impulse buying, approval of others, and current fashionability of style than were the purchases of imported suits. On the other hand, purchases of imported suits u·ere more influenced by factors such as prestige and utilitarian motivation than were purchases of domestic suits. For most socioeconomic variables, respondents indicated significant differences in their motivations for buying imported suits and domestic suits. The results of this study suggest the need for implementing different marketing strategies for imported suits and domestic suits.

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The Dynamic Relationship of Domestic Credit and Stock Market Liquidity on the Economic Growth of the Philippines

  • CAMBA, Abraham C. Jr.;CAMBA, Aileen L.
    • The Journal of Asian Finance, Economics and Business
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    • 제7권1호
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    • pp.37-46
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    • 2020
  • The paper examines the dynamic relationship of domestic credit and stock market liquidity on the economic growth of the Philippines from 1995 to 2018 applying the autoregressive distributed lag (ARDL) bounds testing approach to cointegration, together with Granger causality test based on vector error correction model (VECM). The ARDL model indicated a long-run relationship of domestic credit and stock market liquidity on GDP growth. When the GDP per capita is the dependent variable there is weak cointegration. Also, the Johansen cointegration test confirmed the existence of long-run relationship of domestic credit and stock market liquidity both on GDP growth and GDP per capita. The VECM concludes a long-run causality running from domestic credit and stock market liquidity to GDP growth. At levels, domestic credit has significant short-run causal relationship with GDP growth. As for stock market liquidity at first lag, has significant short-run causal relationship with GDP growth. With regards to VECM for GDP per capita, domestic credit and stock market liquidity indicates no significant dynamic adjustment to a new equilibrium if a disturbance occurs in the whole system. At levels, the results indicated the presence of short-run causality from stock market liquidity and GDP per capita. The CUSUMSQ plot complements the findings of the CUSUM plot that the estimated models for GDP growth and GDP per capita were stable.