• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
• /
• v.7 no.8
• /
• pp.189-199
• /
• 2017

The purpose of this study is to compare the grid usage that is common to Leonardo da Vinci and J.N.L. Durand in the process of designing the architectural plan. In the days when there was no proper measurement tool, auxiliary lines relied entirely on the architect's personal mindset and design convenience. Therefore, it is considered that studying the auxiliary lines drawn by the architects will be useful for studying the human perception system. Among auxiliary lines, the grid has been used by many architects. Leonardo da Vinci and J.N.L. Durand are famous. However, these two show a significant different grid usage. As auxiliary grid and space ares added the center of the Leonardo da Vinci grid continues to move, and the grid in his sketch is becoming a building space itself. So I call it 'conceptual grid'. In the case of J.N.L. Durand, the one center of the grid is always at the center of the drawing. That is, all the positions of the grid can be determined in phase around a common point, and all of the same specifications are assumed. The grid is a kind of filter. That's why his grid is a visual abstraction of the process of thinking. In this paper, I will call the grid of J.N.L. Durand as 'abstract grid'.

• 한국벤처창업학회:학술대회논문집
• /
• 2018.04a
• /
• pp.75-78
• /
• 2018

국가인적자원개발 컨소시엄사업은 고용보험법과 근로자직업능력 개발법에 근거하여 고용보험기금을 재원으로 하여 운영되는 사업으로서 고용보험기금을 재원으로 하기 때문에 고용보험료를 납부하는 기업이나 교육생은 전액무료로 수강이 가능하나 경영진의 무관심과 근로자의 필요성 인식 저조, 시간 지리적 제약 등의 이유로 일부 분야에서는 어려움을 겪어 왔다. 본 연구에서 소개하는 사례는 보건산업 분야 국가인적자원개발 컨소시엄사업을 운영하고 있는 한국보건복지인력개발원 사례이다. 한국보건복지인력개발원 역시 초기에는 기업의 참여도 저조 등으로 교육에 어려움을 겪었으나 조직혁신과 수요자 니즈 충족을 통해 급속한 성장과 성과를 내고 있다. 한국보건복지인력개발원은 컨소시엄사업을 수행하기 위해 기관 위상 제고 및 조직 안정화 노력을 하였고, 교육 참여기업 및 교육생 수요에 기반한 교육과정 개편, 사업 운영 조직 및 인프라 개편 등 사업 운영 혁신을 통해 교육확대 등 교육사업 성과향상의 결과를 보여주고 있다. 이에 본 혁신사례는 국가인적자원개발 컨소시업사업은 물론 정부지원 교육훈련사업 전반에도 적용될 수 있을 것으로 판단된다.

• Computational Structural Engineering
• /
• v.7 no.3
• /
• pp.4-15
• /
• 1994

현재 구조최적화는 아직도 실무설계에서 제 위상을 찾지 못하고 있다. 그 원인은 주로 지금까지의 대부분의 연구가 알고리즘 위주로, 교과서적 예제위주로 치달았기 때문이며 따라서 오늘날과 같은 고도의 전산화시대에도 실무설계자들에게 외면당하고 있는 실정이다. 앞으로 구조최적화 분야의 전문가들이 실무설계문제 응용위주의 연구개발에 주력함으로써 이러한 문제는 쉽게 극복될 것이며, 실무설계자들도 최적설계가 무엇인지 제대로 알지도 못하면서 외면만 하고 매도만 할 것이 아니라, 오늘날 멀티미디어 초고성능 PC시대에 막대한 정보 및 자료의 처리능력을 갖춘 CD롬과 고성능 통신기능, 고도의 음성, 문자, 영상인식 Input Media, 그리고 윈도우, 펜티엄 같은 현재의 OS와 OS/2, 시카고 같은 차세대 OS체계 하에서 고도의 CAD/CAD Expert 시스템이 실용화 되려면 최적설계는 재래적인 설게방법을 대치하는 시스템 내의 핵심설계코드가 되지 않을 수 없다는 점을 인식해야 할 것이다. 어차피 가까운 장래에 현재의 이론과 응용사이의 lAG와 실무설계자들의 오해가 해소되는 날이 오면 최적설계는 지금의 MPC시대는 물론 인공지능형, 사고형 차세대 컴퓨터 시대에 적합한 현대적인 구조설계법이 될 것임을 확신하는 바이다.

• Journal of Digital Convergence
• /
• v.18 no.11
• /
• pp.59-71
• /
• 2020

The paper reports on a systematic literature review results concerning the smart factory research in Korea. 144 papers were identified from the articles published in Korean journals listed in the Korean citation index by keyword search related to smart factory. Bibliometric analyses were conducted by way of co-occurrence and network analysis using the VOSViewer. Automation, intelligence, and bigdata were identifed as three critical clusters of research while, operating systems, international policy and cases, concept analysis as other three clusters of research. Internet of Things turned out to be a key technology of smart factory linking all of these areas. Servitization studies were small in numbers but seemed to have a lot of potential. Security researches seemed to be lacking connections with other areas of studies. Results of this study can be used as a milestone for identifying future research issues in smart factories.

• Journal of Korea Technology Innovation Society
• /
• v.13 no.4
• /
• pp.680-699
• /
• 2010

In this paper, we attempted to analysis and track dynamic properties of the interdisciplinary relationship between scientific research areas in energy field using bibliometric analysis. We created network maps with SCs (subject categories) defined from $WoS^{\circledR}$ (Web of Science, Thomson Scientific ISI, Philadelphia, USA) using co-occurrence analysis method in order to identify overall disciplines directly linked with energy fields and investigate the change of interaction between SCs as a function of time. From the results of this study, thermodynamics, fuels, chemistry/chemical engineering, and electrochemistry have differentiated into more specific disciplines while the strength of interaction with energy field gradually has increased. Meanwhile, "nuclear physics" was developed to "nuclear science & technology" toward applicable target sector and also the interaction of "environmental science" with "energy generation area" among various energy disciplines recently showed the radical increase as compared with the values of 4 years ago. Finally, through combinative reviews of today's energy policy established by South Korea government, this study will give a help for keeping up with national energy agenda meeting the diverse characteristics of academic disciplines of energy field. In addition, our results support that the use of such network analysis based on bibliometric analysis to discern shifts in academic R&D strategies and target sectors.

• Journal of the Korean Society for Nondestructive Testing
• /
• v.34 no.2
• /
• pp.148-154
• /
• 2014

Photoelasticity is a useful technique for obtaining the differences and directions of principal stresses in a model. In conventional photoelasticity, the photoelastic parameters are measured manually point by point. Identifying and measuring photoelastic data is time-consuming and requires skill. The fringe phase shifting method was recently developed and has been found to be convenient for measuring and analyzing fringe data in photo-mechanics. This paper presents an experimental study on the stress distribution along a horizontal line that passes the central point of a rhombus plate made of Photoflex (i.e., type of urethane rubber). The isoclinic fringe and/or principal stress direction is constant on this horizontal line, so a four-bucket phase shifting method can be applied. The method requires four photoelastic fringes that are obtained from a circular polariscope by rotating the analyzer at $0^{\circ}C$, $45^{\circ}C$, $90^{\circ}C$ and $135^{\circ}C$. Experimental measurements using the method were quantitatively compared with the results from FEM analysis; the results from the two methods showed comparable agreement.

• The Journal of the Acoustical Society of Korea
• /
• v.14 no.4
• /
• pp.89-95
• /
• 1995

The waveform coding technique has concerned with simply preserving the waveform shape of speech signal through a redundancy reduction process. In the case of speech synthesis, the waveform coding with high sound quality is mainly used to the synthesis by analysis. However, since the parameters of this coding are not classified into either excitation or vocal tract parameters, it is difficult to applying the waveform coding to the synthesis by rule. In order to apply the waveform coding to the synthesis by rule, the pitch alteration technique is required in prosody control. In this paper, we propose a new pitch alteration method that can change the pitch period in waveform coding by scaling the time-axis and compensating the spectrum. This is relevant to the time-frequency domain method were the phase components of the waveform is preserved with a little spectrum distortion of 2.5 % and less for 50% pitch change.

• Journal of the Korean Institute of Traditional Landscape Architecture
• /
• v.37 no.3
• /
• pp.127-133
• /
• 2019

This study intends to discuss the system improvement of landscape architecture field in the cultural heritage protection system, which is changing continuously. The results are as follows. First, the status of landscape architecture in cultural heritage, including natural monuments and scenic sites, must be defined. If possible, careful consideration should be given to establish the natural monuments law and scenic sites law, respectively, related to landscape architecture. Second, natural heritage must be preserved by focusing on "space" to include cultural artifacts and landscapes that may be missing through the method of "object" focused protection. Institutionally, the scope of work should be clearly shared by reviewing the redundancy and interrelationship of related laws. Third, in order to protect and manage natural heritage, a department that is wholly responsible for landscape architecture should be established independently at the Cultural Heritage Administration. Fourth, the landscape architecture field should be specified as the requirements for the commissioner of commission at the Cultural Heritage Protection Act. In addition, it is necessary to improve the system such as expending the roles of the repairing technician for landscape architecture and plants in the Cultural Heritage Protection Act.

• Journal of Broadcast Engineering
• /
• v.25 no.6
• /
• pp.935-943
• /
• 2020

In this paper, we propose a method using deep learning for high-resolution display of phase holograms. If a general interpolation method is used, the brightness of the reconstruction result is lowered, and noise and afterimages occur. To solve this problem, a hologram was trained with a neural network structure that showed good performance in the single-image super resolution (SISR). As a result, it was possible to improve the problem that occurred in the reconstruction result and increase the resolution. In addition, by adjusting the number of channels to increase performance, the result increased by more than 0.3dB in same training.

• Progress in Medical Physics
• /
• v.26 no.4
• /
• pp.215-222
• /
• 2015

In this work, we performed a proof-of-concept experiment for phase-contrast x-ray imaging (PCXI) based on a single antiscatter grid and a polychromatic x-ray source. We established a table-top setup which consists of a focused-linear grid having a strip density of 200 lines/inch, a microfocus x-ray tube having a focal-spot size of about $5{\mu}m$, and a CMOS-type flat-panel detector having a pixel size of $48{\mu}m$. By using our prototype PCXI system and the Fourier demodulation technique, we successfully obtained attenuation, scattering, and differential phase-contrast images of improved visibility from the raw images of several selected samples at x-ray tube conditions of $90kV_p$ and 0.1 mAs. Further, fusion image (e.g., the attenuation+the scattering) may have an advantage in displaying details of the sample's structures that are not clearly visible in the conventional attenuation image. Our experimental results indicate that single-grid-based approach seems a useful method for PCXI with great simplicity and minimal requirements on the setup alignment.