• Archives of design research
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• v.17 no.4
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• pp.201-210
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• 2004

This study is to analyze the present situation of Incheon design and to research Incheon industrial design with the special character of the city. Next, the final purpose is to apply this study for the Incheon International Design Competition event that will be held first time sponsored by Incheon Metropolitan. Incheon is Metropolitan which has 2.6 million people and the entrance of seoul Metropolitan which is the center of export industry and one of the greatest industrial city. It is growing the hub of International trade city of the twenty-first centry due to the opening of Incheon International Airport and the new development of Song-do city. The industrial structure of Incheon is mostly consist of small industry centered which has a lack of design development capacity, and it has a little insufficient design-related institutes which can educate the design personnel. It has only two universities and six junior colleges. Especially, design-related academics and exhibitions are rare nearby Seoul area. I will contribute the study which makes the industrial character and the necessity of design that can be possible through the Incheon International Design Exhibition, and it will promote the backward design industry and economy of Incheon that compared to other regions of Korea. And, I am going to utilize as basic data bases for exercising advanced Incheon Industrial Design Competition. Furthermore, I would like to contribute the image improvement of new International Incheon Metropolitan through the training of excellent design experts and finding design-related personnels which can be accomplished the cooperation among local autonomy, industries and schools.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.28 no.3
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• pp.39-52
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• 2010

The royal tombs of the Joseon dynasty are very important cultural heritage with the palaces and Jongmyo. They being promoted as World Heritage of UNESCO and are archaeological sites that need to complex approach. The purpose of this study is to propose the restoration plan of Ureung Gunreung. The results are as follows: First. In the area of Ureung Gunreung, there are many land-use except the royal tombs such as a new town development site and industrial districts, cultural assets districts, They have to be removed and new routes have to be established same as the original form. Second The traditional trees such as a pine tree, a fir tree, a big cone pine and a rhododendron etc. have to be planted In the traditional forest We introduce upper trees and lower trees in the entrance part and religious service part, and pine tree forest in burial mound part and maintain the lawn. Third, The traditional buildings and facilities such as Jaesil, Subokbang have to be restored maintained, and we planed some convinient facilities and rest facilities for visitors.

• Journal of Energy Engineering
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• v.23 no.2
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• pp.207-216
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• 2014

The energy loss can be divided into the loss caused by heat transfer and the loss caused by air flow. Heat transfer is the loss resulting from the heat transmittance of external wall, roof, and floor, and represents one of the most vulnerable elements of existing buildings. To prevent such loss, it is necessary to increase the mean heat transmittance of entire external wall, including the window, to a level above the standard regional value and ensure the air-tightness of window. The old buildings have the structure which is prone to the loss of greater air flow due to the air infiltration through the exit/entrance door upward along the stairway by the stack effect and simultaneous suction of air from each floor, and becomes even vulnerable to the loss of heat insulation for each floor, although the external wall and windows are the most vulnerable parts. The improvement plans for each floor need to be submitted in tandem with the diagnosis of whole building, regarding the diagnosis plan and energy improvement measures based on the survey of site, rather than adhering to the misconception that the replacement of window alone will result in energy-savings.

• Economic and Environmental Geology
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• v.49 no.3
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• pp.243-248
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• 2016

This study was conducted to evaluate the applicability and efficiency of water supply using hydraulic ram pump. Study area is the Imgok-ri, Hwanam-myeon, Sanju-si, Kyeongsangbuk-do. There is an abandoned coal mine, where groundwater is discharged from its entrance with a flow rate of approximately $260m^3/day$. Hydraulic ram pump uses the waterhammer phenomenon and utilizes the power of falling water for pumping part of that water to a higher elevation than the water sources without electric power. To determine the efficiency of hydraulic ram pump, the flow rate was measured at three points according to the altitude difference (${\Delta}h=19m$ (point 1), 30 m (point 2), 40 m (point 3)). Flow rate measured at 1, 2, and 3 were about $8.6{\sim}10.8m^3/day$, $3.98{\sim}4.39m^3/day$, and $2.35{\sim}2.59m^3/day$, respectively. The current results suggested that, hydraulic ram pump could be applicable for the water supply system in mountain areas without external power supply.

• Journal of Korean Society of Rural Planning
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• v.26 no.2
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• pp.107-116
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• 2020

Up to date, the majority research on the major landscape elements in organic farming has been mainly focused on the practice of seeking efficiency. The problem is that this type of study contributes to polluting the agricultural environment and damaging the ecological circulation system. As an alternative, there is a growing body of research on organic farming, but it is not widely applied that research on how to manage the landscape considering the scenic characteristics of farming villages practicing organic farming. Therefore, this study was carried out in the conservative aspects of rural landscapes in order to effectively manage the landscape of organic agriculture and, intended to be used to maintain and preserve natural and ecologically harmonious landscapes by deriving management methods suitable for landscape elements targeting the major landscape elements of the organic farming complex. To carry out, this study performed the experts survey which is composed of 13 major landscape elements, including rice paddies and fields, monoculture and diverse crops, dirt roads, windbreak trees, accent planting, dum-bung(small pond), natural small river, natural waterways, plastic film houses, one-storied houses, and pavilion. As a result, Farm land was formed in a square shape, concentrated in an independent space, planted companion plants around the crop, and covered with plants to manage the borders. As for the surrounding environment, it was analyzed that the aspart road system circulating through the village, the evergreen broad-leaved windbreak forest around the cultivated land, and the accent plant located at the entrance of the village were suitable. The hydrological environment consists of Round small pond made of stone in an open space, natural rivers around the village, and natural channels around the farmland, and The Major facilities are suitable for greenhouses that are shielded by plants in independent regions, and wooden duck houses located inside the cultivation area are suitable and The settlement facilities were analyzed to be suitable for single-story brick houses located in independent residential areas, pavilion located with greenery in the center of the village, and educational spaces shielded with wood from arable land. If supplementary evaluation criteria suitable for the management of organic farming landscape are additionally supplemented based on the results derived from this study, It is expected to enhance the landscape value of ecologically superior organic farming.

• Journal of radiological science and technology
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• v.28 no.3
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• pp.241-248
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• 2005

X-ray examinations represent the largest man-made source of radiation exposure for the population. The need for standardization of radiation exposures has been suggested and the guidance levels for various radiographic and radioisotope examinations has been proposed by the International Atomic Energy Aency(IAEA) as a safety standard. In many countries, the situation of medical radiographic exposures in each country should be researched before the appropriate guidance level is established. In this study, measurements of entrance surface dose, dose-area product(DAP), computed tomograghic dose index(CTDI) and mean glandular dose(MGD) were carried out in patients who underwent routine x-ray examinations, fluoroscopy, computed tomograghy and mamography in Korea. These measured quantities were compared with the results from the calculation method in previous study. And we suggested diagnostic reference levels in medical imaging in Korea.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.4
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• pp.527-535
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• 2017

Heat management is one of the most critical issues in Polymer Electrolyte Membrane Fuel Cells (PEMFCs) installed inside the fuel cell power pack of a fuel cell battery hybrid UPS. If the heat generated by the chemical reaction in the fuel cell is not rapidly removed, the durability and performance of the fuel cell may be affected, which may shorten its lifetime. Therefore, the objective of this study is to select and propose a proper cooling method for the fuel cells used in the fuel cell power pack of a UPS. In order to find the most appropriate cooling method, the various design factors affecting the cooling performance were studied. The numerical analysis was performed by a commercial program, i.e., COMSOL Multiphysics. Firstly, the surface temperature of the 1 kW class fuel cell stack with the cooling fans placed at the top was compared with the one with the cooling fans placed at the bottom. Various rotation speeds of the cooling fan, viz. 2,500, 3,000, 3,500, and 4,000 RPM, were tested to determine the proper cooling fan speed. In addition, the influence of the inhaled air flow rate was investigated by changing the porous area of the grille, which is the entrance of the air flowing from the outside to the inside of the power pack. As a result, it was found that for the operating conditions of the 1 kW class PEMFC to be acceptable, the cooling fan was required to have a minimum rotating speed of 3500 RPM to maintain the fuel cell surface temperature within an acceptable range. The results of this study can be effectively applied to the development of thermal management technology for the fuel cells inside the fuel cell power pack of a UPS.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.28 no.2
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• pp.86-97
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• 2010

The royal tombs of the Joseon dynasty are very important cultural heritage with the palaces and Jongmyo. They being promoted as World Heritage of UNESCO and are archaeological sites that need to complex approach. The purpose of this study is to propose the restoration plan of Gimpo Jangreung. The results are as follows: First, in the area of Gimpo Jangreung, there are many land-use except the royal tombs such as a military camp and industrial districts, Public Cemetery, they have to be removed and new routes have to be established same as the original form. Second, the traditional trees such as a pine tree, a fir tree, a big cone pine and a rhododendron etc. have to be planted in the traditional forest. We introduce upper trees and lower trees in the entrance part and religious service part, and pine tree forest in burial mound part and maintain the lawn. Third, the traditional buildings and facilities such as Hongsal-gate, Jaesil, Suragan, Subokbang and Uhjwong have to be restored maintained, and we planed some convinient facilities and rest facilities for visitors.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.28 no.2
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• pp.9-22
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• 2010

This research is attempted to investigate Dongcheon-rock inscription- to understand symbolic meanings from inscribed texts and to find its construction purpose. For the investigation, 25 target areas were selected for field exploration and literature review regarding Dongcheon were also performed. Several design characteristics of Dongcheon are as follows: First, Dongcheon has four criteria according to creation purpose: residential type(家居地型), hermitage type(隱棲地型), nature excursion type(山水遊覽型), aesthetic scenery type(勝景型), moral training type(修身型) and spiritual discipline type(修道地型). This category shows that Dongcheon is constructed at residential area, shelters, and place for leisure, mortal training and spiritual discipline. Second, Dongcheon is also classified by its location: location on village entrance in a deep forest(深山同口型) and location on near stream(溪流隣接型); location on near stream has also two types(連繫型, 單一領域型): location on an independent territory and location horizontal ground(平地型). Through garden creators' managing their garden in forest, valley and scenic spots, they pursue utopia. Third, naming is a way to create new landscape places. By naming a certain natural landscape as Dongcheon, the landscape is symbolized as utopia, appearing fairyland. Designer's desire and thoughts are saturated in Dongcheon.

• International Area Studies Review
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• v.13 no.3
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• pp.385-412
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• 2009

This study first analyzes economical environment change (factor) of investment nation Japan and Japanese enterprise at the analysis of Japanese enterprise's over-seas expansion factor and influence. As a result of an analysis of the factor about Japanese enterprise's overseas expansion from 1990 to 1996 and from 1998 to 2006, commonly applied factors were Yen exchange rate, interest rates, wage, enterprise profit, facility investment, and consumption expenditure. Especially, as a result of regression analysis, a sudden change of "low interest rate" was main factor at Japanese enterprise's overseas expansion from 1990 to 1996, and Japan's "Yen ex-change rate" was drawn as an important factor from 1998 to 2006. That is, from 1990 to 1996, a shock by a sudden rise in Yen value could be viewed gradually accumulated and absorbed inside Japanese economy from 1998 to 2006. Whereas it could be said that Japanese enterprise's overseas expansion was accelerated under Japanese government's overseas supporting policy and "low interest rate" together with the factor in the rise of Yen value from 1998 to 2006.