• 한국가구학회지
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• 제17권1호
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• pp.47-54
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• 2006

This study focused on designing environment-friendly furnitures by recycling useless stuffs. I designed environment-friendly furnitures by using plastic manekings, which do not decay easily. Designing environment-friendly furnitures by using maneking, we should consider the following; to make our surrounding comfortable and pleasant, to make the appearance of the streets more beautiful, and to consider our future environment. We need to use reusable and recyclable wastes much more to make environment-friendly furnitures from now on.

• International Journal of Naval Architecture and Ocean Engineering
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• 제12권1호
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• pp.784-798
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• 2020

This paper presents the results of research on transverse shrinkage of welded butt joints conducted according to the principles of experimental design and under production conditions for two main welding techniques used in shipbuilding (FCAW and SAW). Analysis took into account the technological and structural parameters influencing the assembly suitability of a large steel structure. The presented method of evaluation makes it possible to apply approximation formulae to predict transverse shrinkage in real sections of a ship hull. The determined predictive formulae were verified to actual transverse shrinkage measurements during prefabrication of hull sections at a shipyard as well as the equations referring to the analyzed form of deformation available in the literature.

• 한국조경학회지
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• 제25권2호
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• pp.104.2-104.2
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• 1997

Ji Cheng''''s great work on garden design theory, the ''''Yuanye'''', written in 1631 and originally published in 1634 is the first surviving treatise and most famous and comprehensive work on the suvject in the Chinese tradition. He constructed Dongdiyuan in Changzhou about 1623, Wuyuan in Yizheng in 1631, and Yingyuan in Yangzhou about 1634. But no poems and paintings written by him still exist, and none of his known gardens has survived. Therefore his design philosophy is able to be interpreted only by his work, Yuanye. This study aims at investigating the garden design theory in Yuanye. The results were summarized as follows. 1) Yuanye reflected the garden tastes of literati, and Ji Cheng endeavored to express the deas of literati painting into gardens. 2) The essence of the garden design theory is Xingzao, and Yindi, following the existing lie of the land, and Jiejing, to borrow from the scenery, are two major activities of Xingzao. 3) Ji Cheng''''s design theory build up on the basis of recognizing the existence of masters. 4) Yindi is the environmental and ecological planning and design method. This is the activity to reach the state of artistry through suitability. 5) Jiejing is not merely borrowing the landscape but the making use of scenery around the garden. And only the master has the skill in fitting in with the form of the land. 6) Ji Cheng pursuits the garden which will look like something naturally created though manmade. It is the goal of the Chinese traditional gardens and ideal situation. 7) Ji Cheng aims to unify the environment and landscape design dialectically into Xingzao.

• 한국조경학회지
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• 제25권2호
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• pp.117-134
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• 1997

Ji Cheng's great work on garden design theory, the 'Yuanye', written in 1631 and originally published in 1634 is the first surviving treatise and most famous and comprehensive work on the suvject in the Chinese tradition. He constructed Dongdiyuan in Changzhou about 1623, Wuyuan in Yizheng in 1631, and Yingyuan in Yangzhou about 1634. But no poems and paintings written by him still exist, and none of his known gardens has survived. Therefore his design philosophy is able to be interpreted only by his work, Yuanye. This study aims at investigating the garden design theory in Yuanye. The results were summarized as follows. 1) Yuanye reflected the garden tastes of literati, and Ji Cheng endeavored to express the deas of literati painting into gardens. 2) The essence of the garden design theory is Xingzao, and Yindi, following the existing lie of the land, and Jiejing, to borrow from the scenery, are two major activities of Xingzao. 3) Ji Cheng's design theory build up on the basis of recognizing the existence of masters. 4) Yindi is the environmental and ecological planning and design method. This is the activity to reach the state of artistry through suitability. 5) Jiejing is not merely borrowing the landscape but the making use of scenery around the garden. And only the master has the skill in fitting in with the form of the land. 6) Ji Cheng pursuits the garden which will look like something naturally created though manmade. It is the goal of the Chinese traditional gardens and ideal situation. 7) Ji Cheng aims to unify the environment and landscape design dialectically into Xingzao.

• 한국결정성장학회지
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• 제28권6호
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• pp.271-276
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• 2018

서비스 디자인 방법론을 통해 시장의 상황과 사용자가 원하는 니즈를 파악하여 소재 선정에 있어 고려해야 하는 기준을 조사하였고, 이에 따라 자전거 디자인 개발에 있어 CFRP CNT 소재를 선정하였다. 이 소재를 이용하여 자전거 파트 중 프레임 디자인 개발을 진행하였고, 그 이후 시제품 제작 전 진동 감쇄 실험, 인장강도 실험, 강성 실험 결과를 통해 CFRP CNT 소재로 디자인한 자전거 프레임은 강도 및 경량성 등 기능적 측면에서 기존 CNT 소재로 제작된 자전거 프레임보다 향상된 결과를 보여줌으로써 자전거 프레임에 적합하다는 결과를 얻었다.

• 한국주조공학회지
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• 제19권5호
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• pp.393-402
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• 1999

The reheating of the billet in the semi-solid state as quickly and homogeneously as possible is one of the most important aspects. From this point of view, an optimal design of the induction coil is necessary. The objective of inductive coil designsi a uniform induction heating over the length of the billet. The effect of coil length, diameter, the gap between coil surface and billet and axial position of the billet on temperature distribution of billet has been investigated. These design parameters have an important effectiveness on the electro-magnetic field. Therefore, in this study an optimal coil design to minimize electromagnetic ed effect will be proposed by defining the relationship between billet length and coil length. In particular, key point in induction heating process is focussed on optimizing the coil design with regard to the size of the heating billet and the frequency of induction heating system. After demonstrating the suitability of an optimal coil design through the FEM simulation of the induction heating process, the results of the coil design are also applied to the reheating process to obtain a fine globular microstructure. Its considered that the reheating conditions of aluminum alloys for thixoforging and a new CAE model of the induction heating process are very useful for thixoforging practitioners including induction heating ones.

• 한국환경복원기술학회지
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• 제17권2호
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• pp.109-123
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• 2014

Kaloula borealis is the species of Amphibia which belongs to Kaloula genus and it is the only species inhabiting in Korea. The population size and habitat of Kaloula borealis have been significantly decreased on a national scale due to the diversified developments and the uses of agricultural pesticides. Accordingly, the Ministry of Environment has designated and managed them as the class II of endangered species, in accordance with "Endangered Species Protection and Management Act"; however, a particular study focused on the ecological restoration of Kaloula borealis is desperately needed to prevent their extinction. This study was conducted to propose the HSI (Habit Suitability Index) of Kaloula borealis based on literature survey on ecology and habitats of Kaloula borealis, as well as their HSI. Factors to be investigated in HSI include: space, feed, cover, water(breeding) and threatening factors and the variables of each factor were also proposed. The distance from wetland, grassland, farm, stream and rice paddy, as well as the altitude of spawning pond were proposed as the variables of space, whereas the bed structure of forest and low-rise grassland were proposed as the variables of feeding. The variables of water (breeding) include the area of permanent and temporary wetlands, coverage of emerged pants (ratio of open water), water depth, water temperature, water quality, pH level, etc., whereas the presence of predator, distance from street and pollutants were proposed as the variables of threatening factor. The sub-standards by HSI factor of Kaloula borealis have been drawn from in-depth consultation with experts and based on this, the final HSI of Kaloula borealis was developed.

• 한국지반환경공학회 논문집
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• 제11권10호
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• pp.41-48
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• 2010

본 연구에서는 기존에 적용된 준설투기장 설계에서 준설투기장에서 배출되는 상등수의 부유물 농도 예측에 대한 적합성 평가를 위하여 실제 현장 준설 시 준설투기장 내에서 준설토의 입도분포 및 상등수의 부유물 농도 분포를 측정하여 설계 예측 값과 비교하였으며, 상등수의 유속과 부유물 농도와의 관계를 분석하였다. 평가 결과, 현장 측정값과 설계 예측값이 비교적 유사한 경향을 보였으나, 준설 초기 및 상등수 유속이 증가한 시점에서는 설계 예측값과 상이한 측정값을 보였다. 이는 기존에 적용된 준설투기장 설계법이 준설 기간에 따라 민감하게 변화하는 준설토의 침강 깊이 및 상등수의 유속 등을 반영하지 못하기 때문으로 판단된다. 또한 준설투기장에서 동시에 측정된 유속과 부유물 농도의 분포가 유사한 경향을 보이므로 상등수의 유속과 부유물 침전이 상당히 밀접한 관계가 있는 것으로 관측되었다. 따라서, 현장 준설투기장 상황 변화를 보다 정확히 예측하기 위하여 준설토 계면고, 침강깊이, 상등수 유속에 따라 변화하는 부유물 침전을 고려한 준설투기장 설계법이 필요하다고 사료된다.

• 한국추진공학회지
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• 제18권1호
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• pp.65-72
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• 2014

터보펌프 터빈로터의 열구조적 적합성 검증을 위한 터빈로터-파이로시동기 연계시험을 수행하였다. 새로운 추진제를 적용한 파이로시동기와 열응력 경감 설계 및 터빈 동익 표면 건전성 향상을 위한 후 가공 공정이 적용된 터빈로터시편이 시험에 사용되었다. 시험은 75톤급 엔진시동을 위한 파이로 시동기의 연소가스를 터보펌프 터빈로터와 동일한 형상의 시편에 분사하는 방식으로 이루어졌다. 터빈에 가해지는 열 부하는 운용 설계점에서 극한 조건까지 세 종류로 구분하여 시험을 진행하였으며 모든 시험에서 터빈로터의 손상은 발견되지 않았다.

• 복식
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• 제63권1호
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• pp.81-96
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• 2013

We interviewed and surveyed parents of 3 to 6-year-old boys in order to determine designs for indoor apparel that appealed to toddlers. In addition, on the basis of the behavioral characteristics of such boys, improvements in the development of indoor apparels were suggested. Parents preferred indoor apparels because it could be worn as underwear when the kid is outdoors and as outerwear when indoors. These apparels were popular with toddlers. Therefore, indoor apparel that gives the impression of outerwear while performing the function of underwear was designed. Underwear fabric was used, but outerwear apparel design was partially adopted. In order to improve the activity, fabric that could be stretched in any direction was used for the sleeves and pant legs, while organic fabric with soft texture was used for the trunk part of the apparel. Dark-colored material was used for the chest and elbow parts of the clothes in order to prevent contamination in these parts. In particular, a bib was used to prevent contamination in the chest part. Given that toddlers engage in many activities, the fabric needed to be durable, so this led to thick materials being used for the knee part. As certain parents complained about the short length for tops, we increased the length of the tops by 5cm. In the survey items that investigated overall wearability, ease, and suitability for toddlers' activities, the test apparel obtained a higher score than existing apparel did. This indicates that the overall suitability of the newly designed apparel was improved.