• 한국산업융합학회 논문집
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• 제20권5호
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• pp.411-417
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• 2017

In this study, Sunroot was used as material in the fermentation process. Sunroot are widely distributed in Korea, The main component is composed of inulin. Fermented vinegar stimulates digestion in the body, as well as to relieve stress is a cause of increasing the neurotransmitter-Serotonin of the body. Therefore, we conducted fermentation studies using sunroot. This research conducted seven days, and the pH and brix value analysis was done every 12 hours during fermentation process. The experimental results show that the fermentation product under blender treatment is better than cutting treatment and without cutting treatment. Initial brix 25% is the best treatment for fermentation because produce fermentation product with a good taste and aroma than other treatment.

• 한국식품조리과학회지
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• 제6권1호
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• pp.67-73
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• 1990

The purpose of this study is to investigate the manufacturing process for mass production of korean traditional cookies to be supplied to consumers with cheap price. Selected items for mass production is Yoomilkwa such as Yackwa. Maejackwa which preferred by consumers, and Chasookwa which was presented at royal party in YiDynasity. Standard mixing ratio of food material, manufacturing process, and machinery needed in each manufacturing process were suggested by the items of korean traditional cookies. Manufactured goods which is produced in large quantities by machinery are Yackwa model I, II Maejackwa model I, II, III, and Chasookwa model I, II.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.31-48
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• 1993

Economic background is discussed with consequences for tractor industry and tractor concepts. Particular reference is given to the question of frame chassis instead of block concept. Development trends of tractor components are analyzed for driving system (including four-wheel drive and brakes), diesel engines, transmissions, human engineering , hydraulics and implement control. Consideration is given to electronics and aspects of environmental protection as well. Expected further tractor design developments are summarized at the end of the paper.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.867-876
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• 1993

This study was investigated to evaluate whether brown rice drying could reduce the rice production cost. Characteristics of brown rice drying was experimentally determined. With brown rice drying, the higher energy efficiency could be obtained. Therefore, this method is effective to cost reduction . However, there are some problems , for example occurrence of fissuring and preservation of rice quality.

• 한국기계가공학회지
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• 제10권6호
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• pp.50-55
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• 2011

The fluid power products are widely used in current industrial area such as automation of products and equipment assembly, high-tech machine tool, aircraft, train, and etc. As the development of industry is in progress, the development of the fluid power products is demanding and it is required in every industrial area. This research proposed a pneumatic system to evaluate displacement accuracy of the pneumatic actuator without external load and to analyze capability of integration of the valve system. The pneumatic system consisted of a combination of pneumatic actuator, four two-port valves, two three-port valves, two pressure valve, a check valve, two proximity sensors, and a program logic controller (PLC). The position controller is based on the PLC connected with the proximity sensors. The maximum air pressure applied for tests was $49.05N/cm^2$ and the displacement accuracy of a stroke was measured using a dial gauge. The supply- and discharge-side of air pressure and the length of the stroke of the pneumatic cylinder were varied The test of the position control of the pneumatic cylinder was carried out 50 times at each supply- and discharge-side air pressure of 24.53/34.34, 29.43/39.24, 34.34/44.15, and $39.24/49.05N/cm^2$ and replicated three times. The accuracy of the displacement of the pneumatic cylinder stroke increased as the supply- and discharge-side of air pressure increased with the stroke length of 133mm. Also the displacement accuracy increased as the stroke length increased with the fixed supply- and discharge-side of air pressure of the pneumatic cylinder as 34.34 and $44.15N/cm^2$, respectively. The most accurate displacement of the pneumatic cylinder was obtained at the supplyand discharge-side of air pressure of 39.24 and $49.05N/cm^2$, respectively, and strokes of 170 and 190mm.

• Journal of Biosystems Engineering
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• 제26권2호
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• pp.189-196
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• 2001

바이오 센서 개발에 대한 주 동기는 건강보호 산업이었지만, 최근의 연구 동향은 농업 및 생물 생산 시스템 분야로 확산되고 있다. 바이오 센서의 본질과 기능에 관한 일반적인 논의가 간단히 제시되었고, 제자들에 의해 연구된 및 종류의 바이오 센서 예와 그들의 적용에 대해 소개하였다.

• 한국정밀공학회지
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• 제18권1호
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• pp.38-43
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• 2001

• 오토저널
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• 제24권2호
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• pp.12-18
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• 2002

• 대한안전경영과학회지
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• 제15권2호
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• pp.39-45
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• 2013

Occupational injury rate of Korea recently slides slightly downward after stagnating around 0.7%'s for more than 10 years. To accelerate this trend, injury prevention for small enterprises is crucially important because vast majority of injuries take place in small enterprises. Considering huge number of small enterprises, we need to focus our efforts to type of riskier industries. By analysing detailed injury data, we select type of industries which need our concentrated prevention efforts. Several preventive measures are recommended, after we made literature survey of case studies for small enterprises. The result identifies riskier type of industries including transportation machinery manufacturing industry type(B), woods & veneer manufacturing industry, etc. Safety of machinery, new enterprises less than 2 years in service and new employees serving less than 6 months are in need for focused prevention efforts. To cope with these vulnerable spots, recommended preventive measures include strengthening of machinery safety standards, early assistance for safety to new enterprises, mandatory safety education before employment, etc.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• 제26권4호
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• pp.280-295
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• 2022

This paper contains an introduction to industrial problems, solutions, and results conducted with the Korea Association of Machinery Industry. The client company commissioned the problem of upgrading the method of identifying global supply risky items. Accordingly, the factors affecting the supply and demand of imported items in the global supply chain were identified and the method of selecting risky items was studied and delivered. Through research and discussions with the client companies, it is confirmed that the most suitable factors for identifying global supply risky items are 'import size', 'import dependence', and 'trend abnormality'. The meaning of each indicator is introduced, and risky items are selected using export/import data until October 2022. Through this paper, it is expected that countries and companies will be able to identify global supply risky items in advance and prepare for risks in the new normal situation: the economic situation caused by infectious diseases such as the COVID-19 pandemic; and the export/import regulation due to geopolitical problems. The client company will include in his report, the method presented in this paper and the risky items selected by the method.