• 대한전자공학회논문지TE
• /
• 제39권1호
• /
• pp.71-76
• /
• 2002

차량의 폭발적 증가로 인해 저속, 서행형태로 주행시간이 점점 늘어나므로, 본 연구에서는 연비향상을 목적으로 정차상태에서는 일부 실린더만으로 일정한 엔진회전수를 유지하고, 주행상태에서는 전 실린더를 이용하는 가변실린더에 대해 실제 하드웨어로 제작하여 실험해 보았다. 과거에 일부 제작되었던 가변실린더 엔진은 정차상태나 저속상태에서 사용하는 실린더 주위에 열이 집중하여 열응력이 발생하고, 사용하지 않는 실린더는 냉각수의 순환으로 인해 주변의 온도가 더욱 떨어지게 되어, 재점화시에 많은 유해가스가 배출되고 연료 소모량도 많아지게 되며, 엔진회전수가 고르지 못하는 문제가 있었다. 이러한 문제점을 극복하고자 정지상태나 저속주행상태에서와 같이 많은 출력을 요하지 않는 운행조건에서는 새로운 점화방식과 밸브 개폐시기를 이용하여 연비를 향상시키는 방안을 제시하고, 그 타당성을 검증하였다.

• 한국가구학회지
• /
• 제21권4호
• /
• pp.326-337
• /
• 2010

The invention and development of digital computer networks since the post-modern culture and creating new ideas, and in nearly all areas since the industrial revolution has had the greatest impact. A new paradigm for the 21st century, the Internet and ubiquitous, and mobile devices are being created by the new culture is being created. Rapidly being replaced by digital and analog, and 'Digilog' fusion concept has appeared. In addition, the development of computer cyberspace culture, art, design and structure are changing. In the field of furniture design, changing design processes and innovative design philosophy that change is now occurring. These symptoms experienced at the same time, almost every country on Earth is a phenomenon. Since the 20th century, computer network design based on the relationship between digital and cyber culture espoused by philosophers studied society and organic modernism and organic design of digital-based differences are confirmed through the case. Using digital technology, modeling case study of a furniture designer in cyber space and the creation of human capabilities and the fusion of computing power will be studied in modern furniture design.

• 정보학연구
• /
• 제2권2호
• /
• pp.107-125
• /
• 1999

‘90년대 중반이후 급속히 성장한 전자금융은 금융자동화기기의 대중화와 더불어 홈뱅킹, 텔레뱅킹 등 공중통신망을 통한 거래, 인터넷을 통한 자금결제 등 다양한 지불수단을 제공하고 있다. 이러한 금융결제환경에서 소비자는 자금관리의 유동성을 확보하였으며 보다 편리하고 다양한 금융서비스를 제공하는 금융기관을 선호할 것으로 예견되며 은행은 고객편의성에 입각한 지불결제시스템의 제공과 이를 통한 새로운 경영수익 확대방안을 마련하여야 할 것이다. 또한 통화관리당국은 전자금융시스템의 안정적 기술기반의 제공과 더불어 지불수단별 전자금융의 추세를 분석하고 예측함으로써 금융시장의 교란요인을 최소화할 수 있는 방안을 마련하여야 할 것이다.

• 신재생에너지
• /
• 제10권4호
• /
• pp.9-15
• /
• 2014

In this study pressure and shaft torque pulsation were measured with variation of head and flow during the model test for a 15 MW Francis Turbine. Pressure pulsations were measured at the inlet of the spiral casing and 4 points in the cone of the diffuser and shaft torque pulsation at the upper position of the turbine. The maximum amplitude of pressure pulsation appeared 2.03% of the maximum rated head with the frequency of 25% of the rated revolution and at the guide vane opening of $10^{\circ}$. Shaft torque pulsation appeared 0.01% of the rated shaft torque, fairly low value. Air was admitted through the cone and pressure pulsation gradually decreased with increase of air flow and kept nearly constant after 5% of the rated flow. A new Francis turbine of which specific speed is 115 m-kW had been designed to rehabilitate the old one and the model test was performed at EPFL. The commercial code, STAR-$CCM^+$ was used for numerical simulation of flow.

• 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.

• 한국미생물학회:학술대회논문집
• /
• 한국미생물학회 2002년도 추계학술대회
• /
• pp.90-93
• /
• 2002

The revolution in molecular biology has given us greatly increased ability to obtain and to modify biological resources and to use them for the benefit of all humankind. The sequencing and the associated analysis of gene functions for a growing number of genomes will have an unprecedented effect on the uses of biological resources and the need for access to them. To investigate the diversity of microbial community in swamp, molecular systematic methods were applied. By amplified rDNA restriction analysis (ARDRA) and rDNA partial sequence analysis, $75\%$ of the isolates were known species. In case of uncultured analysis, almost all the selected clones were new species candidate. Especially archea and uncultured bacterial analyses, all clones were new taxon candidates. As for the eukaryotic diversity, several yeast form cultures were isolated from various samples of swamp. Among them, about $60\%$ of the isolates were easily identified. In case of a new species candidate, most strain were included in hymenomycetal yeasts.

• 디자인학연구
• /
• 제14권1호
• /
• pp.177-186
• /
• 2001

It is true that the new development in digital technology has Influenced on the definition of animation like it did on the other fields of an, but this doesnt mean this development drastically changes the traditional concept and replaces it with innovative new one. The more the technology is being developed, the mon it needs traditional base that can lead it to what it originally should be. As an example, computer animation companies are constantly seeking for people who have traditional animation background rather than well-trained computer oriented artists. This means digital technology will be no more a technological threat to the people who has traditional animation background. Consequently, when considering the extended concept caused by this new technology, we have to find its base on the traditional animation concept. Since we dont have any fundamental base in traditional animation and technological base in computer animation, we should consider those in advanced countries as a standard. However, in these days, there is a tendency to worship the words themselves such as "digital revolution", "information technology" etc., not the basics behind them. We cannot expect any achievement with this in mind. This study might be a short cut to the students and animators who want to learn and approach computer animation in a right wav.

• 문화기술의 융합
• /
• 제6권4호
• /
• pp.663-667
• /
• 2020

2050년이 되면 현재 거론되고 있는 제4차 산업혁명의 기술들이 고도로 성숙되어 인류 문명의 전환기를 맞게 될 것이다. 이 중에서 가장 획기적인 기술은 인공지능, 로봇, 가상현실, 초연결 네트워크 등일 것이다. 이 기술들은 인간의 삶 뿐 아니라 전장의 모습도 크게 변모시킬 것이다. 따라서 2050년 육군은 이러한 기술을 융·복합시킨 초지능·초연결 기반의 신개념 무기체계를 개발하는데 모든 역량을 집중해야 한다.

• 디자인학연구
• /
• 16호
• /
• pp.65-74
• /
• 1996

러시아 전위 예술은 서유럽에서 발생한 새로운 미술사조를 러시아 예술가들이 그들의 전통문화와 접속시켜 독자적인 미술사조로 발전시킨 것에 커다란 의미가 있다. 러시아 혁명이후 사회 개혁에 러시아 전위 예술가들은 적극적으로 동참했다. 그들은 사회주의 사회의 이상 실현을 위해 미술, 영화, 건축, 연극 등 각 장르에서 활동했다. 이러한 새로운 사회에 필요한 전문 기능인력의 양성을 목적으로 Vchuthmas가 설립되었다. 학교의 교육목표는 예술분야(건축, 회화, 조각, 그래픽, 금속, 목공예, 도자기, 텍 스타일 등)의 지도자를 양성하는 것이었다. Vchuthmas에서는 러시아 전위예술가들의 구성주의와 기능주의의 원리에 바탕을 둔 교수법을 통해 학생들을 지도하였으며 이는 독일의 Bauhaus 교육에도 지대한 영향을 주었다.

• 한국실내디자인학회논문집
• /
• 제17권3호
• /
• pp.139-147
• /
• 2008

Modern architecture's optical mechanism focused on Ocuularcentrism neglects the tactility of vision and tends to eliminate the optical and tactile dualism of traditional spaces by representing spaces and surfaces that are abstract and cold-hearted. In other words, all sensory experiences, except for visual experiences, are eliminated to make it impossible to create the substantial core of architecture that combines time, image, and surface textures. The fast-changing social trends, the emergence of new materials and technologies, and the corresponding development of various types of media since the Industrial Revolution have changed the paradigm of human perception and representation. With the development of media, other sensory experiences besides visual experience have been stressed and human perception has converted from single perspective to complex perspective. In result, new sensory items, such as visual tactility, have replaced the traditional vision-centered hierarchy. The composition of architectural surfaces has represented the functional and commercial needs of technology, structure, as well as the socio-cultural needs of the community. In contemporary times, it is being changed and developed by the new tactility and the corresponding expression of modern architecture. Based on the visual representation of tactility of architectural surface, this study used a composition of surface that combines various events, meanings, and senses to examine how architecture can mediate and reproduce viewers' visual experiences and discover the existential relationship between architecture and men.