• 전자통신동향분석
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• 제33권1호
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• pp.123-130
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• 2018

Tactile sensors, which are commonly referred to as pressure and strain sensors, have been extensively investigated to meet the demands for attachable and wearable electronics for monitoring the health status or activity of human users. For this purpose, the introduction of two-dimensional (2D) materials such as graphene and transition metal dichalcogenides (TMDs) with high mechanical strength at the atomic scale is very suitable for tactile sensors applicable for use in human-friendly devices. In this paper, we examine a descriptive summary of a tactile sensor and review state-of- the-art research trends of 2D material-based tactile sensors in terms of the material and architecture. Finally, we propose a roadmap for future studies into advanced tactile sensors based on our ongoing research.

• 한국게임학회 논문지
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• 제9권4호
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• pp.33-43
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• 2009

컴퓨터 기술 발전과 유토피아적 상상력의 교합으로 발생한 디지털 공간은 더 이상 놀이의 공간이 아닌 새로운 가치 창조의 공간으로 발전하고 있다. 이에 본 논문은 디지털 공간을 유희성이 두드러지는 디지털 게임의 공간과 소셜 네트워크 서비스가 중심이 되는 가상세계 공간으로 나누고, 각각의 공간에서 활동의 주체가 생성과 운용, 그리고 소멸시점에 따라 어떻게 페르소나를 형성하고 유지하는지를 살펴보고자 한다. 이러한 연구는 디지털 공간의 아바타를 기획하는데 지침서가 될 수 있다는 점에서 유의미하다.

• JSTS:Journal of Semiconductor Technology and Science
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• 제15권1호
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• pp.150-153
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• 2015

An energy-efficient 64-bit prefix adder is proposed for micro-server processors based on both semidynamic and bypassing structures. Prefix adders consist of three main stages i.e. propagate-generate (PG) stage, carry merge (CM) tree, and sum generators. In this architecture, the PG and CM stages consume most of the power because these are based on domino circuits. This letter proposes a semidynamic PG stage for its energy-efficiency. In addition, we adopt the bypassing structure on the CM tree to reduce its switching activity. Experimental results show 19.1% improvement of energy efficiency from prior art.

• Biotechnology and Bioprocess Engineering:BBE
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• 제7권4호
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• pp.185-193
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• 2002

With Increasing awareness towards environment-friendly and non-toxic pesticide azadirachtin obtained from neon tree (Azadirachta indica) is gaining more and more importance. Its broad-spectrum activity, Peculiar mode of action. eco-friendly and non-toxic action towards beneficial organisms has offered many advantages over chemical pesticides. All currently use commercial formulations based on azadirachtin contains azadirachtin extracted from seeds of naturally grown whole plants which is labour intensive process depending upon many uncontrollable geographical and climatic factors. Plant tissue culture can be a potential process for the pro-duction, offering consistent, stable and controlled supply of this bioactive compound, However the research on tissue culture aspects of production are in preliminary stage and requires culture and process optimization for the development of a commercially viable process. This review states the present status and future challenges of plant tissue culture for azadirachtin production.

• 정보학연구
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• 제8권2호
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• pp.1-16
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• 2005

In high education, knowledge is the very important resource and output. Knowledge management is the art of creating additional value from academic knowledge assets. The e-community is the network community, newly created by information communication technology, and the critical place that share and transfer people's the various knowledge and thinking and the effective space that can apply knowledge management. If we construct a convenient and useful e-community in our university, we will be able to increase the student's intellectual needs, and create new knowledge. Web-portal will promote the activity of e-community providing easy to access and personalized web circumstance. The emergence of Internet and Web access to all university services will force institutions to rethik everything. We should reconfigure our academic environment in order to adapt information technology and educational change, and must do change management based on their structure and culture.

• 조명전기설비학회논문지
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• 제24권12호
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• pp.47-56
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• 2010

For a human being's smooth activity, the clean air and comfortable lighting environment are needed. The suitable lighting environment is obtained generally by making it available for being formed the bright situation easy for seeing object and the visually comfortable atmosphere. In this way, even the lighting environment was changed along with economic development. Even a light source was diversified. Thus, several kinds of new light sources such as LED, OLED, PLS, and CNT came to appear. Halogen lamp, which has low efficiency due to high color rendering among lamps of being used now, is being much used yet. However, owing to radiation of UV and IR, there are many limitations to the subject in general exhibition lighting, museum, and art museum. Accordingly, a research was performed on filter that is blocked UV and IR at the same time, by using halogen lamp that is excellent in color rendering and in life.

• 동아시아식생활학회지
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• 제23권5호
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• pp.605-612
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• 2013

The purpose of this study was to investigate the quality characteristics of maejakgwa prepared with Ligularia fischeri powder (0, 1, 3, 5, 7%) as a substitute for flour. The pH of maejakgwa dough significantly decreased in response to the addition of all levels of Ligularia fischeri powder. Spread factor values and water contents increased significantly with increasing amounts of Ligularia fischeri powder. In addition, the Hunter color L, a and b values decreased significantly with increasing amounts of Ligularia fischeri powder. Furthermore, hardness was increased significantly as the level of Ligularia fischeri powder increased. DPPH free radical scavenging activity increased significantly as the content of Ligularia fischeri powder increased (p<0.05). Finally, the results of the sensory properties indicated that maejakgwa containing 3% Ligularia fischeri powder had the highest scores. These results suggest that Ligularia fischeri powder can be applied to maejakgwa in order to achieve high quality and functionality.

• 복식
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• 제37권
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• pp.89-102
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• 1998

This paper has main purpose of identifying the difference of the characteristicss of male consumers who have different levels of fashion leadership. 538 male consumers living in Seoul area was surveyed using questionnaire. Sam-ples were surveyed using questionnaire. Sam-ples were segmented as 3 groups by fashion leadership and named fashion leader, fashion follower and fashion retards. Various character-isticss in terms of personality, attitudes, life-estyle activities, magazined readership, use of fashion information sources, shopping behavior, risk perception and demographics analysis among 3 segments. 3 groups showed significant differences in many characteristics such as venturesomeness, cosmopoliteness, ex-tensity of travel, art/culture activity for offtime, reading of male-oriented magazines, in-formation search through fashion magazine, fashion knowledged, shopping preferrence, clot-hing expense. Based on major characteristics of each segment, some tips for marketing strategies were suggested.

• Nuclear Medicine and Molecular Imaging
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• 제43권3호
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• pp.165-173
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• 2009

Nuclear cardiology in Korea is less active, compared to nuclear oncology, but it has been specialized and ramified. Lately, sophisticated nuclear cardiac imaging methods provide more convenience for patients. It is necessary to accurately estimate the recent progress in the imaging devices for nuclear cardiology. Myocardial perfusion imaging is a well established study to evaluate heart function. Myocardial perfusion SPECT and PET have been used for assessment of coronary artery disease with various radiopharmaceuticals. And of late, the development of advanced imaging devices - multi-pinhole technique and high definition imaging technique - and software made the scanning time shorter and expanded the application field. Therefore, it is required to review the nuclear cardiology hardware/software for the clinical practice and research. In this review, the characteristics about recently-developed SPECT/PET and software for nuclear cardiology are described. It is hoped that this information would contribute to improving the activity of nuclear cardiac research in Korea where the research for the fusion imaging combining a and nuclear imaging is drawing more attention.

• 한국실내디자인학회논문집
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• 제16권5호
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• pp.30-37
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• 2007

According to the passage of an age, a method which communicates each other between the city and space, and space and a human has changed. Recently, as the city is developing related with the public, the sphere and a territory of activity of a public has been wider in an environment of the city. Therefore, development of night scenery and the rise of a medium of a vision are accompanied with a new material and the high-technology. Innovation of abundant techniques tends to being surface and mass media, and breaks from the architectural aspect of space as mutual expansion of relations between interior and exterior, and making a boundary obscurely. Space design represents peculiarity of non-territorial which modern art, an advertisement, a media and a reflection are integrated as getting over above tendency. As we find out methods which the public can communicate with the space in wider territory, the public and the space can extend mutual relations and the design of modern space is been varying a part as the space which has a context of city and synthetic sociality for the public by avoiding independent objects.