• 한국실내디자인학회논문집
• /
• 제13권5호
• /
• pp.66-73
• /
• 2004

If we consider the origins of new architectural language in Russian, as opposed to its social dimensions, then we are looking at quite another area of pre-Revolutionary activity: art. It was Tatlin's early ‘counter-reliefs’ which first explored the way new materials might generate new artistic form. The Basis of his art is collage and the reality of materials. In 1915, he exhibited the first of his ‘counter-reliefs’, casual montages of pieces of metal that invade the space around them, making the decomposition of the forms three-dimensional. What is not in doubt is the primacy of materials in Tatlin's art. He was a key figure in the transition from art towards design and ‘construction’, the last was accomplished with ‘real materials in real space.’After the October Revolution, one of the central myths of avant-garde was the realization of a total work of art. The progress has developed in the directions to an unprecedented creative realm, situated somewhere between painting and architecture in the post-revolutionary period. Paramount among such pioneer works was Tatlin's design for a monument to the Third International in 1919. Here In an artistic form, his investigation of ‘material, volume and construction’ was clearly embodied. In the comtemporary architecture, Tatlin's concept has been a great influence on the various tendencies of spatial expressions. For example, the architecture with concept of ex-formality has many varied aspects of space composition - dynamic forms with plasticity of concrete, ex-cubic composition with free walls, disposal composition by geometric collision and superimposition, and etc.

• Corrosion Science and Technology
• /
• 제7권1호
• /
• pp.1-5
• /
• 2008

The gas atmosphere in continuous annealing and galvanizing lines alters both composition and microstructure of the surface and sub-surface of sheet steel. The formation and morphology of the oxides of alloying elements in High Strength Interstitial Free (HS-IF), Dual Phase (DP) and Transformation-Induced Plasticity (TRIP) steels are strongly influenced by the furnace dew point, and the presence of specific oxide may result in surface defects and bare areas on galvanized sheet products. The present contribution reviews the progress made recently in understanding the selective formation of surface and subsurface oxides during annealing in hot dip galvanizing and conventional continuous annealing lines. It is believed that the surface and sub-surface composition and microstructure have a pronounced influence on galvanized sheet product surface quality. In the present study, it is shown that the understanding of the relevant phenomena requires a combination of precise laboratory-scale simulations of the relevant technological processes and the use of advanced surface analytical tools.

• 전기의세계
• /
• 제16권2호
• /
• pp.1-8
• /
• 1967

From the discovery of Alago's disk, a number of trials and efforts have been concentrated on a small-sized and light-weighted induction motor. They have devoted themseleves, however, mainly to a improvement of cooling effect, a proper weight-distribution of copper and iron and desirable number of slots. In consequence, such an effort restricted only to the field of design, has resulted in unsatisfactory developments in the insulating materials consisting of the main parts of an induction motor. The quality of fibre and paper which are used as class-A insulation materials with their "compound" and "varnish" has been increased to some extent. Similarly Class-B insulation materials like asbest mica has been almost a combination of inorganic and binding materials. But nowadays synthesic chemistry is making a remarkable progress. So it comes possible for us to have silicon resin and other good ones of similar charateristics. And even a thin silicon resin insures us to get excellent heat-pro f and insulation, so a better space factor and cost-down in motor design have come possible in most advanced nations of the world, but not in our country. Furthermore, a consideration of productivity and economy in manufacturing process has been neglected by a majority of engineers. This is more unpleasant und more undesirable. I think this rational method of induction motor design using new synthesic resin will devote in making your productivity and economy better. And the nation-wide standard value of electric motor size is sited here. size is sited here.

• 한국재료학회지
• /
• 제12권7호
• /
• pp.580-586
• /
• 2002

The effect of processing and designing variables such as pouring temperature(1400 or $1500^{\circ}C$), inoculation and risering design(T and H type) on the formation of defects such as external depression, primary and secondary shrinkage cavities in GC150 gray cast iron was investigated. In T type risering design, external depression or primary shrinkage cavity due to liquid contraction was formed in all of the eight cases. Regardless of its modulus value, the riser could not function properly in T type risering design because directional solidification was not promoted toward the riser. On the other hand, the four cases of H type risering design in which thermal sleeves were set onto the risers produced defect-free castings. In both types of the risering designs, secondary shrinkage cavity caused by solidification contraction was not observed in the casting because of the expansion pressure due to graphite precipitation and the application of rigid pep-set mold. The degree of external depression or primary shrinkage cavity was reduced with lowered pouring temperature. The effect of inoculation was diminished because of the high carbon equivalent of GC 150 gray cast iron.

• 한국기계가공학회지
• /
• 제19권12호
• /
• pp.14-20
• /
• 2020

Currently, the automotive market is intensively researching eco-friendly vehicles such as EV vehicles and hydrogen vehicles. Further, research and developments for the future markets such as autonomous vehicles and the connective cars are coped up continuously along with the rising fuel economy regulations and the emission regulations. In this development, various sensors, batteries, and control devices are fused in order to decrease the weight of the vehicle. Moreover, since the fuel economy regulation is an issue, research on the weight reduction of body parts is underway. Therefore, in this work, a study is conducted to obtain the optimal design of the Dash part that separates the engine room and the passenger seat of the vehicle body by combining lightweight materials with high rigidity materials. The optimal design was obtained using the Finite Element Analysis. Further, AL5083 was used as the lightweight material and ASBC1470 was used for high strength materials. The parts made with this combination of materials had strength equivalent to that of the existing steel and the weight was reduced by 10%.

• 한국구조물진단유지관리공학회 논문집
• /
• 제24권1호
• /
• pp.43-50
• /
• 2020

본 연구에서는 건설 구조물에 사용되는 건설 자재 중 콘크리트 구조체에 전면 부착 시공되어 건축물의 내외부로부터 스며들거나 넘쳐흐르는 물을 막을 수 있는 차단마감재인 방수재료에 있어 가속 환경 조건 속의 지하 외벽에서의 방수 성능 설계의 일환으로 내진 성능 설계가능성을 제안하고 그 품질검증 시험방법에 대해 검토하였다. 국내외 건설자재 내진설계 현황을 살펴보았을 때, 국내의 경우 아직까지 현행법상 건축 과정에서의 내진설계 규제는 있지만 자재에 대한 규제는 없어 내진용 제품군이 드물고 대부분 시공법에 의존하고 있는 상황이다. 국외의 경우 일본, 캐나다, 독일과 같이 비구조재에 내진성능을 부여한 다양한 건축자재가 개발되고 있음을 확일 할 수 있었고, 이러한 내진설계 개념은 앞장에서 살펴본 바와 같이, 지하 콘크리트 구조체에 전면접착 혹은 부분 부착되어 시공되는 선행 외방수재료에 있어 지진에 대한 보완 대응력을 가질 수 있다면 내진 설계된 구조체와 함께 누수 예방 및 방지 기술로서 그 적용성을 기대할 수 있을 것으로 판단된다.

• 한국의류산업학회지
• /
• 제12권5호
• /
• pp.555-563
• /
• 2010

This research has attempted for a categorization by contemplating on concepts and characteristics of eco fashion design through analysis of precedent studies and to study the design characteristics, images, and internal values through keyword and design codes which appeared in the precedent studies. The subject of analysis was mostly focused on the theses published in international and domestic academic journals from 1990s to September 2009. The design characteristics of each eco fashion design were analyzed by classifying by form, detail, color, fabric and pattern. Method of analysis did content analysis. The results of the research can be summarized as follows. First of all, types of eco fashion design were human-ecology design, natural-ecology design, and social-ecology design. Secondly, the human-ecology design was presented a natural and comfortable form, color of the nature, and functional and new materials. The natural-ecology design was presented a natural silhouette, natural colors, and natural fiber. The social-ecology design were used a loose silhouette and over-size forms, natural colors, and recycled materials and bio fabric. Thirdly, the images per type of eco fashion design were Zen, sportive, natural, and modern image. And the internal values were presented efficiency, health-orientation, naturalness, and continuity.

• 한국실내디자인학회논문집
• /
• 제12호
• /
• pp.91-99
• /
• 1997

Alvar Aalto has pursued National Romanticism, cultural art movement in scandinavian peninsula, organic concepts of growth and suitability, comprehensive view of nature including a possibility of coexistance of human-being and the nature well harmonized. For instance, his design expressed local features of the nature, human emotions instead of geometical arts and mathematical principles. It is noteworthy today that he built up the identity with satrical architecture vocabularies, different from modern arch-itechtural idiology. The characte-ristics of his design related to interior architecture are collectively as follows; The first, Space discontinuity of the interior and exterior, gradual process by joints which are inclined to collage with many shapes in plan and section of the space and such joints are adjusted by sensual ways and stressed with inner collectivity in his works. The second, He pursued the architectural orderfor modern irreqularity, various changes and sensual harmonies. As result, free curved line, fan shape and irregular modeling were individually expressed by technics of natural features and national characteristics of Finland. The third, Organic synthesis. A harmony through med-ums in its space, materials and space effectiveness relations are made and expressed for mixed design especially harmonized of all the materials he planned, entire harmony with total design, itemized details, materials and furnitures in entire space. The fourth, The interest of the nature based on his sense harmonized with nature made him mainly use native materials, lumbers and red bricks masonry and showed and arranged various interior sky light and grazed in to let natural light in, harmony with garden to sensually cohere to the nature and courtyard, etcetera. His major subject are to direct architectural developments through the nature and human-being in his works. At this point, it is considered that his direction of the locality and independence as a human-being made the concepts of organic space structure possible.

• 한국의상디자인학회지
• /
• 제11권1호
• /
• pp.155-167
• /
• 2009

This study reviewed the basic principle of "Maximalism" fashion and analyzed the properties of fashion types with found the frequencies of various styles and design factors of "Maximalism" fashion in collection. The limits of this study is from 2001, s/s, maximalism was embossed in a modem fashion, to 2007, f/w, and collected the fashion collection pictures from www.samsungdesign.net and www.style.com. The results of this study are as follows. First, the most frequent style of "Maximalism" design showed in International fashion collection was "exaggerated style." Second, the design factors of "Maximalism" fashion were also examined. In case of silhouette, "hourglass silhouette" was the most frequent silhouette. In case of pattern, "solid" color was the most frequently used. In case of materials, the soft materials were the most frequently used. Third, the frequencies of design factors of maximalism by presentation types was compared and analyzed. In case of expansion, "bulk silhouette" was the most frequent silhouette to be appeared, and about multi-ethnic, futurelism, and elegance, "hourglass silhouette" was frequent appeared. In case of pattern, "solid" color was the most frequently used in all types. In case of materials, the hard materials were the most frequently used in expansion, multi-ethnic and futurelism. "Maximalism" fashion which is most splendid trend would grow up rapidly in the modem fashion market and influence on the other fashion trend in our every day life. Consequently, this research can be referred as practical information in fashion marketing and it will contribute to the future fashion research as well.

• 대한기계학회논문집A
• /
• 제38권2호
• /
• pp.185-192
• /
• 2014

유성기어의 설계는 모듈 등의 이산변수, 잇수 등의 정수 변수, 치폭, 종횡비 등의 연속 변수가 혼재된 복잡한 문제로 이를 해결하기 위해서는 최적 설계 기법이 적용되어야 한다. 본 연구에서는 유전 알고리즘(Genetic algorithm)을 이용한 최적 설계를 유성기어 설계에 적용하였다. 유성기어 설계시 기본이 되는 기어 잇수, 모듈, 압력각, 치폭 등과 같은 매크로 지오메트리(Macro-geometry)를 이용하여 이뿌리/치면 강도에 대한 강도 평가를 수행하였으며, 상용 프로그램과의 비교를 통해 검증하였다. 유전 알고리즘을 이용하여 기어의 체적을 최소화하기 위한 최적 설계를 수행하였으며, 이를 통하여 설계자는 초기 설계시 시행착오를 줄여 설계 시간을 단축시킬 수 있었다.