• International Journal of Korean Welding Society
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• v.1 no.1
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• pp.13-16
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• 2001

High speed seam weldability of tin coated steels was investigated. Welding was performed by the laboratory wire seam welder that was equipped with process monitoring system Test results showed that increase in applied current and pressure reduced the total resistance across the welding electrodes. Lower and upper limits of welding current increased as the sheet thickness increased, while the acceptable welding condition range decreased. However, extremely low electrode pressure produced unstable welding condition range. The results also demonstrated that slower welding speeds widened the optimum welding heat input range.

• Journal of Fisheries and Marine Sciences Education
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• v.14 no.2
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• pp.213-228
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• 2002

This study is aimed to analysis the fishery consciousness of the fishermen in Kyungbuk province. an issue for the study may be used on activating device of fisheries high school. So, the data were collected from a fishermen living at the city of Pohang in Kyungbuk province. The treatment of materials are classified by age, level of a school career and by working career. This research evaluated percentage to the frequency of responses to each question and carried out $\chi^2$. The statistically signigicant level account for p<.05 and made use of SPSS 10.0. The conclusion of study were as follows; First, fishermen have little understanding for fishery consciousness, therefore there was needed public activities and life long education. Second, in order to solve the difficulties of fisheries villages, governmental financial support have to be presented, It is showed that economically, culturally, and financially, govermental policy should be devised for the purpose of emerging from backwardness of fisheries villages. Third, large portions of economic value should be allocated to fisheries villages by improving fisheries structure. Actually, lower incomes haves have burdened fisheries villagers with more debts. More years of being engaged in fisheries have resulted in more debts. People in fisheries villages regarded incomes as the most important among factors in their selecting fisheries as a job. If they earned more money in fisheries village than in metropolises, people on fisheries villages would choose the fisheries an their jobs. Naturally, there will prove to be an increase of number of persons engaged in fisheries. Also, thinking of fisheries as dangerous and heavy should be corrected into the new image by improving work environments and mechanization.

• The Korean Journal of Mycology
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• v.28 no.2
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• pp.93-96
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• 2000

To investigate the effect of inorganic nutrient supplement in oyster mushroom (Pleurotus ostreatus), we have conducted some study on cultural and growth characteristics of fruitbody formation and chemical composition of media and fruitbody. When supplemented with slow releasing fertilizer, contamination rate was not different from non-supplemented medium, days for incubation time and first pinhead were faster than non supplemented medium. And fruitbody yield and biological efficiency were increased $10{\sim}28%,\;7{\sim}20%$ respectively, but biological efficiency was decreased when increased supplement ratio. The chemical compositions (total carbon, total nitrogen, ammonia nitrogen, nitrate nitrogen, potassium and phosphate) of slow releasing fertilizer supple mented medium and fruitbody were compared with non-supplemented.

• Korean Journal of Veterinary Research
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• v.25 no.2
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• pp.125-131
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• 1985

철분투여가 용혈성 빈혈에 미치는 영향을 알아보기 위하여 흰쥐의 사료내에 철분을 혼합급여 또는 근육내에 주사하면서 60일간 사육하고 체중은 10일 간격으로 측정하였으며 적혈구의 취약성 실험과 적혈구막 및 혈장내의 vitamin E 함량과 인지질의 함량을 비색방법으로 측정한 결과 다음과 같은 성적을 얻었다. 증체량 측정에서는 A군의 190g에 비하여 C군 155g, B군 142g, D군 112g으로 철분함량이 높은 군에서 낮은 증가를 보였으며 적혈구 취약성 실험 결과 5마리 암수 평균값이 각각 A군 7.63% 및 2.68%, C군 10.84% 및 16.75%, B군 25.54% 및 33.62%, D군 47.23% 및 38.35%로 철분함량에 비례하여 각 실험군 사이에 유의한 증가를 나타내었다. 또한 적혈구막의 vitamin E 및 인지질의 함량은 5마리 암수 평균값이 각각 A군에서 18.54mg/dl 및 17.43mg/dl 그리고 120.55mg/dl 및 113.94mg/dl, C군에서 14.99mg/dl 및 10.56mg/dl 그리고 108.54mg/dl 및 99.97mg/dl, B군에서 13.10mg/dl 및 11.02mg/dl 그리고 91.67mg/dl 및 87.45mg/dl, D군에서 6.86mg/dl 및 8.87mg/dl 그리고 79.78mg/dl 및 70.12mg/dl로서 철분 투여량에 비례적으로 감소하였다. 혈장내의 vitamin E 및 인지질의 함량은 A군, C군, B군, D군의 순으로 각각 함량이 2.51mg/dl 및 31mg/dl, 1.94mg/dl 및 21mg/dl, 1.37mg/dl 및 20mg/dl 그리고 1.37mg/dl 및 15mg/dl로 철분 투여량에 비례적으로 감소하는 경향을 나타내었다.

• Journal of Fisheries and Marine Sciences Education
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• v.14 no.2
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• pp.129-148
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• 2002

The purpose of this study was to investigate of fishery consciousness for fisheries high school teachers. The data was collected from 61 fisheries high school teachers in Kyungbuk Province. The treatment of materials are classified by level of academic careers, teaching careers. This research evaluated percentage to the frequency of reponses to each question and carried out $\chi^2$ - test, etc. The statistically significant level accounted for p<.05 and made use of SPSS10.0. The conclusion of the study were as follows: Strategic development of fisheries high school on fishery consciousness need to program with fishery characteristic, to promote maritime affairs had better systematic publicity activities. On educational system policy need to keep consistency of occupational education policy, change of titles of school and reconstruction of department, expand of carrier guidance direction. On high self-conceit of Hsheries high school teachers need to many discussion be based program of school itself and academic society. And director and vice-principle station region of islands, etc.

• Korean journal of food and cookery science
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• v.10 no.3
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• pp.249-253
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• 1994

In this study, total dietary fiber contents, acid detergent fiber contents lignin, water binding capacity (WBC), iron binding capacity of ADF and rutin contents from Korean buckwheats were determined. Total dietary fiber (TDF) content was 3.14% in kyungbuk rice buckwheat, 5.65% in kangwon hull buckwheat and 3.35% in kangwon rice buckwheat. Acid detergent fiber (ADF) content was 2.47, 4.46 and 2.94%, respectively and lignin content was 1.14, 1.60 and 1.08% respectively. The water binding capacity of these three sample dietary fiber showed that TDF were in the range of 2.87~3.88 g %H_2O$/g DF and ADF were in the range of 4.62~5.26 g %H_2O$/g DF. The iron binding capacity of ADF at pH 5.0, 6.0, 7.0 were 79.11, 78.01, 46.16% in kyungbuk rice buckwheat, 70.63, 63.83, 53.60% in kangwon hull buckwheat and 77.67, 76.33, 50.25% in kangwon rice buckwheat. The rutin contents of these samples and their hulls were 13.54~16.41 mg/100 g groats and 12.13~14.24 mg/100 g in hulls. The rutin content of kyungbuk rice buckwheat was the highest.

• Bulletin of the Korean Chemical Society
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• v.15 no.8
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• pp.663-669
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• 1994

Decay kinetics of Ga(5s), Ga(5p) and Ga(4d) atoms in Ar were studied by laser induced fluorescence technique. Theground state gallium atoms in the gas phase were generated by pulsed dc discharge of trimethyl gallium and argon mixtures. Both pulsed discharge and YAG-DYE laser system were controlled by a dual channel pulse generator and the delay time between the end of discharge and laser pulses was set 3.0-6.0 ms. The Ga(5s) and Ga(4d) atoms were generated by single photon excitation from the ground state Ga atoms and radiative lifetimes as well as the total quenching rate constants in Ar were obtained from the pressure dependence of the fluorescence decay rates. The Ga(5p) atoms were populated by a two-photon excitation method and the cascade fluorescence from Ga(5s) atoms were analyzed to extract quenching rate constant of Ga(5p) atoms by Ar in addition to radiative lifetimes of Ga(5p) state. The magnitudes of the quenching rate constants by Ar for the low-lying excited states of Ga atoms are 1.6-3$ {\times}10^{-11}cm^3$ molecul$e^{-1}s^{-1}$, which are much larger than those for alkali, alkaline earth and Group 12 metals. Based on the measured rate constants, kinetic simulations were done to assign state-to-state rate constants.

• Journal of Korean Physical Therapy Science
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• v.30 no.4
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• pp.54-62
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• 2023

Background: The purpose of this study was to investigate the effects of breathing training on the balance ability, lung capacity, and shooting score of shooting athletes. Design: Randomized controlled trial. Methods: Twenty shooters were randomly assigned to the experimental group and the control group. Both the experimental group and the control group performed trunk stabilization exercise, and the experimental group received breathing training during exercise. Balance ability, lung capacity, and shooting score were measured before and after the intervention. Results: There was a significant difference in the forced expiratory volume at one second(FEV1), forced vital capacity(FVC) before and after intervention in the experimental group. In the comparison between the two groups, there was a significant difference in FVC between the control group and the control experimental group. Conclusion: The application of breathing training was effective in improving the lung capacity of shooters.

• Journal of the Economic Geographical Society of Korea
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• v.12 no.4
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• pp.477-493
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• 2009

This research aims to examine Korean regional innovation governance, find structural problems, and explore alternative strategies of regional innovation governance. Especially the alternative governance was searched through the case study of Daegu-Kyungbuk mobile cluster, of which formulation Samsung is the anchor institution. Regional innovation governance in this research is defined as a policy system to link knowledge generation & diffusion subsystem and knowledge application & exploitation subsystem, and institutional conditions to steer the system. "Social Capital Assessment Tool (SOCAT)" of the World Bank was utilized for the appreciation of cluster governance. The regional innovation governance of Daegu-Kyungbuk mobile cluster is characterized as production networks dominated by one-to-one relationship between Samsung and hardware/software developers, decentralized R&D networks and policy networks with multiple hubs. Major policy agents have not developed networks with local companies, and rare are interactions between the policy agents. Local companies, especially software developers, responded they have had experiences to cooperate for local problem solving and shared their community goal, however, the degree of trust in major local project leaders is not high. Local hardware/software developers with core technologies need to be cooperative to develop similar technologies or products in Daegu-Kyungbuk mobile cluster. Regional administrative actors, such as the City of Daegu and Kyungsangbuk-do, and diverse innovation-related institutes should build cooperative environment where diverse project-based cooperation units are incessantly created, taken apart, and recreated.

• The Journal of the Korean Society for Microbiology
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• v.1 no.1
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• pp.28.2-29
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• 1958