• Journal of Digital Convergence
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• 제10권10호
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• pp.221-227
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• 2012

In Korea, ocean dumping has been widely used as the ultimate disposal of sewage sludge. However, ocean dumping of food wasted and sewage sludge from 2013 is expected to legally restricted as London convention on marine pollution prevention has been effective in 2009. This research aims to examine the effect of HEAS in treating the environmental pollution load caused by organic high concentrated sludge. Thus, onsite laboratory scale treatability test using HEAS was adopted to treat the high concentrated organic sludge from sewage and industrial wastewater treatment plant. The research results showed that the HEAS is useful to reduce the environmental pollution caused by organic high concentrated sludge. Specific results are as follows. 1. The organic removal after the sludge digestion using the high efficiency aeration system was 55.2-85.8%. Although these results were lower than those from the general sewage treatment, the high efficiency aeration system could be evaluated as efficient, considering the object sludge contained the industrial waster water. 2. The average removal efficiency was about 25.2%. 3. It was revealed that sludge digestion by the high efficiency aeration system could effectively contribute to the sludge treatment cost. Especially, the high efficiency aeration system is more applicable to the onsite treatment of small sewage and wastewater treatment plant that contains high solid content sludge, industrial wastewater sludge, high fixed solid sludge.

• Journal of Digital Convergence
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• 제16권5호
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• pp.123-135
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• 2018

The purpose of this study is to compare the tourism characteristics, satisfaction and influential factors of the three main tourist countries of China, Japan and the US, And to explore differentiation areas. For this purpose, data from 5,160 national tourist consumers extracted from the survey data of foreign tourists in 2016 provided by the Ministry of Culture, Sports and Tourism were used for analysis. As a result, there were statistically significant differences in itemized satisfaction and overall satisfaction by country. Especially, the common itemized-satisfaction factors affecting overall satisfaction of Chines, Japanese and American tourism consumers were 'food' and 'shopping'. In addition, individual factors affecting the satisfaction of inbound tourism consumers were derived differently, and it is required to search tourism industry upbringing policies according to their characteristics and needs. The results of this study are expected to help establish strategies for attracting foreign tourists in the future.

• Journal of Digital Convergence
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• 제14권10호
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• pp.515-520
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• 2016

This study conducted the research about the positive effects of Gynura Procumbens on preventing dermatitis and infectious diseases the contemporary people have. To do it, this study measured the concentration of NF-kB, the extract of Gynura Procumbens. In this regard, cytosol, the extract of Gynura Procumbens, and nucleus went through the separation process. The concentration of major NF-kB among various factors to control inflammation was measured with the use of HDF cell. Regarding RAW264.7 cell, the amounts of NO to play an important role in reacting the skin immune system as the media of neural transmission were analyzed. The outcome about the extracts of Gynura Procumbens injected show that it can be expected that as the NF-kB protein and mRNA band were reduced, Gynura Procumbens would have anti-inflammatory effects that could contribute to preventing dermatitis and diseases. In addition, the extracts of Gynura Procumbens have significantly reduced NO with their concentration increasing. In other words, Gynura Procumbens are considered to regulate dependently the production of NO in the concentration of extracts. Thus there is an expectation that the more intensive research would be conducted to heal dermatitis. And it is deemed that Gynura Procumbens would be used as materials for cosmetics as well as foods that the contemporary people can widely consume if a more careful research about anti-inflammatory effects would be sustained on a human bodies' clinical level.

• Journal of Digital Convergence
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• 제14권10호
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• pp.563-570
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• 2016

This study investigated applicable values and developments of 5 different kinds of oriental medicine materials as functional supplements or medicinal uses, known to improve blood circulation by means of analyzing nutritional compositions and antioxidant activities. Among general nutritional compositions, protein, iron and copper contents in Polygini Multiflori Radix (20.28%, $132.22{\mu}g$/100 g, $26.54{\mu}g$/100 g), Angelica Gigantis Radix (16.54%, $98.20{\mu}g$/100 g, $32.15{\mu}g$/100 g) and Paeoniae Radix(18.67%, $62.10{\mu}g$/100 g, $20.32{\mu}g$/100 g) were significantly higher than other materials. Angelica Gigantis Radix had the highest of total polyphenols and flavonoid contents, Polygini Multiflori Radix (middle), Paeoniae Radix (the lowest). Antioxidant activities by using DPPH radicals removal showed the highest in Polygini Multiflori Radix, Angelica Gigantis Radix (middle), Paeoniae Radix (the lowest). This study tried to use integrated approaches, including Western and Oriental medicine to improve blood circulation and to set up base to develop products originated from natural compositions.

• The Journal of Sustainable Design and Educational Environment Research
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• 제16권2호
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• pp.19-33
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• 2017

The purpose of this study is to derive education programs for safety training class, create unit spaces and present components and methods of utilizing the spaces for the development of facilities models closely related to various policy, operation plan and facility construction projects promoted by related institutions such as the Ministry of Education, schools, architects and companies. This study is divided into five steps. First, we reviewed the literature related basic directions for safety education and facility plan, second, field survey included both field conditions such as spatial size and facility configuration and analysis of operating conditions like hours of operation and personnel. Base on literature review and field survey, it were used to analyze strengths and weaknesses of existing safety training classes, and five facility models was developed based on the Delphi method and expert participatory design. The result show that the facility models (drafts) of safety training class were developed as follows: (1)the facility model for traffic safety(pedestrian safety, vehicle safety, subway safety) (2)the facility model for first aid(emergency rescue, how to report) (3)the facility model for disaster safety(fire evacuation safety, life earthquake safety) (4)the facility model for elevator safety(elevator safety, escalator safety) (5)the facility model for drugs and violence safety (smoking drinking, sexual harassment safety, food safety) The safety training class can be composed by combining or separating each module according to affordable space size of each school.

• International Commerce and Information Review
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• 제14권3호
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• pp.159-183
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• 2012

Promoted in places like Korea, the central government and the local governments that can provide information on which to base investment policy to attract foreign direct mutation-specific gravity model (Shift-Share Model) In this study, the decrease of foreign direct investment performance using factors looked up in the industry. The sample period of 2009, 2010, 2011 nationwide (metropolitan and non-metropolitan separated) of foreign direct investment performance for Industry Standard Industrial Classification (Division) was conducted. Factors to look at the results of the National Growth Effect(NS), the industrial structure effect (IM), local allocation effect(RS) to decrease foreign direct investment in 2010 and 2011 non-metropolitan, metropolitan national growth effect(RS) is negative(-) has a value. Because it appears to be the aftermath of the global recession, the impact on the domestic economy Metropolitan area and the Industrial Mix Effect(IM) to the development of education, culture, business, and transportation, etc. in the development of service industries than in non-metropolitan valid environment. In the sector of services (food accommodation, business services, entertainment), We did it, was able to find the function. However, the Regional Share Effect(RS) be competitive in the manufacturing sector in metropolitan areas in the metal and chemical sectors have been identified. These results seems to enhance the competitiveness of the region, such as the metropolitan area's excellent workforce. Shift-Share analysis technique based on competitive factors of the region, to find the failure has limitations.

• KDI Journal of Economic Policy
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• 제33권1호
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• pp.125-148
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• 2011

Although the patient's problem with access to health information has been improved due to rapidly developing information technologies, such as the internet, some patients still do not have enough ability to understand, interpret, and analyze the health information. Given this view on the patient's asymmetric information problem, if a doctor provides sufficient effort to help patients understand and interpret medical information, the efficiency of patient's medical care use could be improved. This paper shows firstly that the patient's inefficient use of medical care originates from his information problems, such as the misperception of the effectiveness of medical care and secondly suggests that if the doctor makes sufficient effort to correct patient's information problems, the inefficiency can be ameliorated. This paper also suggests the manipulation of a doctor's payment method can lead a doctor to provide optimal level of efforts which can in turn lead patients to use the optimal level of medical care. With an optimal level of effort, a doctor can more easily achieve a patient's compliance with the newly recommended amount of medical care.

• Journal of Wetlands Research
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• 제21권spc호
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• pp.141-148
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• 2019

South Korea is a nation highly reliant on virtual water imports, which raises concerns of water crisis and food crisis at the national level. Virtual water and water footprint studies that consider the environment, social, and economic issues have been consistently addressed. However, there is a lack of Korean research, so the calculation method and comparison analysis are greatly dependent on foreign research results. The calculation results for Korean domestic agricultural products have been released in earnest since 2014. Thus, there has been an increase in comparison studies using domestic virtual water and water footprint results. This study identified the Korean agricultural and livestock water footprint research direction to determine the citation relationship trends. Domestic and foreign research results were analyzed from Korean water footprint related literature from the past 10 years. Therefore, a citation relationship diagram was formed from the literature analysis results. Virtual water and water footprint related research performance are provided in the appendix so researchers can utilize the various information related to this field in the future. In addition, national strategy policy making is expected to be presented for effective water resources management.

• Magazine of the Korean Society of Agricultural Engineers
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• 제13권3호
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• pp.2349-2371
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• 1971

1. The historical development of the agriculture in Korea is observed and the future of Korean agriculture is suggested with present situation in order to recommend a direction of policy in agricultural mechanization. 2. A factor analysis of agricultural mechanization The needs of agricultural mechanization in the view of both national need and the armer's desire under the present situation are analyzed with data from the various sources. The researcher found that the agricultural mechanization is badly needed to develop prospective Korean agriculture to future. 3. The direction of agricultural mechanization. It can be said that the position of agriculture in the national economy plays a very important role. This importance should not be ignored by the Politicians in their process of developing long range economy plan. The agricultural mechanization for the modernized Korean agriculture should be directed to increase the most effective results with minimize the least sacrifice. The merry tiller is recommended to the main agricultural machinery in Korea in order to meet its small farming operation un-its(or farm size). Tractor is recommended in the plain area for the crop cultivation. The cooperative cultivation for rice and the upland crops will be developed in the plain area. Tractor, therefore, is recommended for the main agricultural machinery in these areas. Either tractor or merry tiller is recommended to the orchard area by its operating size of the orchard. The researcher also disoussed about the development of animal husbandry on the farm with increasing the farm size in order to develop meadow and pasture nuder the consideration of both the improvement of food consumption and the comprehensive development of national resources. 4. Relationship between the Performance of various agricultural machinery and the economic scale. Because of the agricultural machinery needs an expensive fixed expense(fixed cost) the total expense Per ha of the fixed expense and the operation expense should less than the traditional expense Per Dan Bo with in creased corpgiclds Per Dan Bo. Since the anual fixed expense of the agricultural machinery is figured out by the durability the more the farm size the less fixed expense of machinery is required. The formula of this principle is as follows; fixed expense for Dan Bo=Fixed expense of agricultural machinery farm size(or farming scale) The breaking-even point is the balance point between the expense of the using agricultural machinery and the traditional farming expenses. Labor cost of the Dan Bo is increasing when the management scale increases by the tradititional farming while the machanized management decrease the management cost Per Dan Bo. The reseracher found that the distribution of agricultural machinery will be the adeventeous after the year of 1981 by the result of frguring out the breaking-even point. 5. The Investigate and the conclusion. The purpose of this study is found out the direction of agricultural machanization and the breaking-even point of various agricultural machinery, there for is found out effective of the using various agricultural machinery for Collection cutter, Binder, Footing thresser, Semi-power thresser, Power thresser, Combine, Power rice-Trans-Planter, etc.

• The Journal of Fisheries Business Administration
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• 제39권1호
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• pp.87-114
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• 2008

The cultured tuna production which has suddenly expanded at the short time and the demand for it attract attention. Farming mode, distribution transactions, change of the market (domestic and international) and the price trend are reviewed from the Japan's position which is the biggest consuming country. This paper tries to describe the current status of the food system related to the cultured tuna. Japanese government began the development of the tuna culture technology in 1970. It was by the Fisheries Agency's project. Kinki University which is the large scale private university in Japan participated in the project. After that, 32 years have passed. Kinki University established the full farming of the bluefin tuna in August, 2002. On the other hand, in 1974, one Japanese private enterprise began its tuna farming business in Canada. Kinki University gave this company technical cooperation. Also, in the early stages of the 90s, as for the policy of the overseas fishery cooperation foundation, it supported the tuna farming business in Australia. It is very clear to understand that the long-term technological-development has supported the take-off scene of the tuna culture business not only in foreign countries but also in Japan. The total shipment scale of the cultured tuna expanded very much within about 10 recent years. However, the decrease of the wild tuna catch, the reinforcement of the fisheries regulation and the tuna body to dwarf are remarkable now. Under the condition as the mentioned above, Japan's tuna consumption, especially, in the market at the fatty meat of tuna of the cultured tuna is building up firm status. At present, the Mediterranean Sea coastal countries, Australia, Mexico and Japan have the tuna farming sites. Australia farms the southern bluefin tuna. The others do the bluefin tuna. About for 3 years, Japan farms the juvenile of the tuna. The global production areas are as follows. 8 coastal countries of the Mediterranean Sea; 18,000 tons (61 % of the cultured tuna quantity in foreign countries), Mexico; 4,500 ton (15%), Australia; 7,000 tons (24%). In 2003, Japan has 32 managements and 39 offices for tuna farming. In Japan, Kyushu and Okinawa district, the share shows itself as 80 % of the domestic production quantity. Especially, the share of Amami-oshima Island in Kagoshima Prefecture exceeds 60 %. Therefore, this island has the maximum production scale of Japan. The amount of supply of BT and SBT was 56,000 tons in 2004. In Abroad, the tuna farming business forms a fixed connection between the importer and the wholesaler which have their office in Japan. In the field of the capital composition, the payment in advance, transaction and the way of settlement, each maintains their fixed relation. The market conditions of the cultured tuna are supported by "the decline of price level" and "the expansion of the general public consumption segment". These lead a team merchandising, and it is supported by the fixed business connection of each. This makes the profit of each business which are on the cultured tuna distribution. However, they have competition on the power balance among them.