• 제목/요약/키워드: rainbow

검색결과 369건 처리시간 0.02초

Conceptual design and preliminary characterization of serial array system of high-resolution MEMS accelerometers with embedded optical detection

  • Perez, Maximilian;Shkel, Andrei
    • Smart Structures and Systems
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    • 제1권1호
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    • pp.63-82
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    • 2005
  • This paper introduces a technology for robust and low maintenance cost sensor network capable to detect accelerations below a micro-g in a wide frequency bandwidth (above 1,000 Hz). Sensor networks with such performance are critical for navigation, seismology, acoustic sensing, and for the health monitoring of civil structures. The approach is based on the fabrication of an array of high sensitivity accelerometers, each utilizing Fabry-Perot cavity with wavelength-dependent reflectivity to allow embedded optical detection and serialization. The unique feature of the approach is that no local power source is required for each individual sensor. Instead one global light source is used, providing an input optical signal which propagates through an optical fiber network from sensor-to-sensor. The information from each sensor is embedded onto the transmitted light as an intrinsic wavelength division multiplexed signal. This optical "rainbow" of data is then assessed providing real-time sensing information from each sensor node in the network. This paper introduces the Fabry-Perot based accelerometer and examines its critical features, including the effects of imperfections and resolution estimates. It then presents serialization techniques for the creation of systems of arrayed sensors and examines the effects of serialization on sensor response. Finally, a fabrication process is proposed to create test structures for the critical components of the device, which are dynamically characterized.

Yeast Single-Cell Protein Production Using Potato Processing Waste Water

  • Park, Eung-Yeal;Crawford, Don-L.;Korus, Roger-A.;Heimsch, Richard-D.
    • Journal of Microbiology and Biotechnology
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    • 제1권3호
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    • pp.212-219
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    • 1991
  • Four species of yeast, Saccharomyces cerevisiae, Candida utilis, Saccharomycopsis flbuligera, and Schwanniomyces castellii were evaluated for their ability to bioconvert potato processing waste water into microbial protein and the resulting single-cell proteins were evaluated as protein sources for rainbow trout, using in vitro analyses. The studies indicated that Schwanniomyces castellii, which utilizes starch dircetly and converts it into cell mass efficiently, was suitable for the bioconversion. In the single-stage continuous bioconversion, the yield S. castellii cell mass, which contained approximately 37% protein, was 77%, at dilution rate 0.25 $h^{-1}$. Reduction of total carbohydrate was 81%. During batch fermentations, cell mass yield was about 72% and total carbohydrate reduction was 81%. Among the yeasts tested, S. castellii possessed the most fragile cell wall and had a favorable amino acid profile for salmonid fish; protein score of 86% (Met). In an in vitro pepsin digestibility test 80% digestibility (23~38% above control) was observed when cells were pre-heated in a steam bath for 30 min. Results presented should be regarded as being preliminary in nature because they were derived from single experiments.

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Characterization of a Substance from Photobacterium damsela subsp. piscicida that Non-specifically Binds to Streptavidin

  • Jung Tae Sung;Kim D. Thompson;Adams Aelexandra;Oh Myung Joo
    • Fisheries and Aquatic Sciences
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    • 제3권1호
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    • pp.52-63
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    • 2000
  • Non-specific reaction has been a problem in doing, especially, research and diagnosis for infectious agents. Avidin-biotin-peroxidase complex (ABC) techniques has widely been used to amplify a reaction. Photobacterium damse1a subsp. piscicdia (formerly Pasteurella piscicida) exhibited a capacity to bind with streptavidin non-specifically. The band, estimated 26 K Da in Western blotted paper, was blocked with biotin but incompletely. In an attempt to explore an involvement of the non-specific substance in attaching piscine cells, cell attachment test performed using anti- Ph. d. subsp piscicida sera raised mouse and rabbit exhibited slightly blocking effects for Mediterranean (1736) and significantly for Japanese (Sp 92144) isolate. Biotin decreased the attachment ability significantly for Sp92144 but it was not effective to 1736. Both isolates showed greatly enhanced attachment ability with poly-L-lysin. The non-specific binding substance was contained in bacterial extracellular products (ECPs). The substance was able to purified with 2-imminobiotin affinity column, the purified substance appeared to have 4 bands in silver staining, and had a carbohydrate branch. This purified substance showed cytotoxic effects selectively between 5 piscine cell lines. Moreover, it stimulated rainbow trout macrophage in terms of reduction of cytochrome cas well as yeast phagocytosis, significantly.

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Molecular cloning and expression analysis of a C-type lectin in the rock bream, Oplegnathus fasciatus

  • Kwon, Mun-Gyeong;Kim, Ju-Won;Park, Myoung-Ae;Hwang, Jee-Youn;Park, Hyung-Jun;Park, Chan-Il
    • 한국어병학회지
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    • 제25권1호
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    • pp.11-20
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    • 2012
  • C-type lectins are crucial for pathogen recognition, innate immunity, and cell-cell interactions. In this study, a C-type lectin gene was cloned from the rock bream. The full-length RbCTL cDNA was 729 bp with a 429 bp ORF encoding a 164-residue protein. The deduced amino acid sequence of RbCTL had all of the conserved features crucial for its fundamental structure, including the four cysteine residues involved in sulfide bridge formation and potential $Ca^2+$/carbohydrate-binding sites. RbCTL contains a signal peptide one single carbohydrate recognition domain. It showed 29.4% similarity to the C-type lectin of rainbow trout. RbCTL mRNA was predominately expressed in gill and head-kidney tissue and expressed less in peripheral blood leukocytes, trunk-kidney, spleen, liver, intestine and muscle. Expression of RbCTL was differentially upregulated in rock bream stimulated with LPS, Con A/PMA and poly I:C.

사회물리적재생을 통한 주거환경개선이 영구임대아파트 주민의 사회적 관계에 미치는 영향 (The Effect of Socio-Physical Regeneration on Social Network of Public Rental Residence)

  • 임의선;이연숙;김주석
    • 한국주거학회논문집
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    • 제22권1호
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    • pp.1-10
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    • 2011
  • In the 20th Century, urban regeneration was changed to holistic regeneration and Ballymun of Ireland was one of the example of leading projects which using holistic regeneration over ten years. In Deajeon, there is a successful project call as "Rainbow project", using holistic regeneration. Any previous case needs to be checked thoroughly and the result needs to be studied for next project. The purpose of this study was to delineate the effect of Socio-Physical regeneration on social network. For this research, research tool was developed to combination of previous social exclusion index. This research was a survey research which used Systematic Random Sampling. In conclusion, it was not enough time to change people's behavior dramatically but even though a change is very low, it is very meaningful. Changing from people's behavior to people's mind, is a step to a goal.

N색 분산 포톤매핑을 이용한 빛의 스펙트럼 표현 (Representation of Light Spectrum using N-color Dispersion Photon Mapping)

  • 곽용식;류승택
    • 한국컴퓨터그래픽스학회논문지
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    • 제16권2호
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    • pp.39-45
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    • 2010
  • 물체의 색은 모양과 더불어 사람이 바깥세상의 사물을 알아보는데 중요한 역할을 한다. 이런 색상을 인식하는 것은 태양과 같은 빛이 존재하기 때문이다. 빛은 여러 파장들로 구성되어 있으며, 눈에 보이지 않는 적외선, 자외선의 영역과 색을 인식시켜 줄 수 있는 눈에 보이는 가시광선 영역 등으로 이루어져 있다. 이러한 모든 파장의 빛이 균등하게 혼합되면 그 빛은 흰 색을 띄게 되며, 이를 백색광이라고 한다. 백색광이 굴절이 이루어지면 그 구성되어져 있는 가시광선 영역이 여러 가지 색으로 갈라지는데 이것을 분산현상이라 한다. 본 논문에서는, 백색광을 무지개의 대표적인 일곱 가지 색상으로 구성하고 자연의 분상현상을 시뮬레이션하기 위해 N색 분산 포톤 매핑 방법을 제안하였다.

휴머노이드 로봇플랫폼 HUBO2+의 기술 개선 추이 (Improvement Trend of a Humanoid Robot Platform HUBO2+)

  • 임정수;허정우;이정호;배효인;오준호
    • 제어로봇시스템학회논문지
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    • 제20권3호
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    • pp.356-363
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    • 2014
  • This paper covers improvement of the humanoid robot platform HUBO2, known as the HUBO2+. As a necessity of the growth of the humanoid platform, a robust, reliable and user friendly platform is needed. From this standpoint, HUBO2+ is the most improved humanoid robot platform in the HUBO series. The mechanical design has been changed to increase the movable range and to stop joint compulsion. Additionally, all of the electrical parts are re-designed to be un-breakable in an unexpected situation. A smart power controller with robot status check panel is attached on the back. Additionally, a diagnosis tool, the HUBO-i, has been developed. Moreover, each joint motor controller of HUBO2+ has a Protection Function and a PODO system is provided for handling the robot easily.

3D 디지털 기술을 활용한 패션 갤러리 제작에 관한 연구 (A Study on the Application of 3D Digital Technology to Producing Cyber Fashion Gallery)

  • 김지언
    • 복식문화연구
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    • 제15권3호
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    • pp.446-460
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    • 2007
  • This study shows that digital technology is adapted practical method in fashion design process and virtual simulation and cyber fashion gallery based on virtual reality are researched. This study is proposed the 3D fashion design simulation in the virtual space used on 3D studio max, poser, photoshop program according to fashion design process. The main design concept is "temporary bridge" from rainbow. This study is supposed six fashion design in accordance with three sub-theme under main concept by changing color and texture used on 3D simulation. The results of this study are as follows: 1. This study produced Cyber Fashion Gallery in virtual space to the form of CD Rom title and web title by Macromedia Director 8.5, Macromedia Flash, Sound Forge. And it is enlarged the field of expression in aspect of Fashion Exhibition, beyond restriction of time and space. 2. Clothes modelling tools is able to easily adapt to various textiles and patterns in 3D dynamic virtual mannequin before making clothes. Digital technology is able to express image changed color and texture, especially new material, multi-finishing material and brilliant material and so on. So this study is able to develop tools for study of fashion coordination. 3. Cyber Fashion Gallery consists of gallery, story, painting, symbolism, example, image, quit. This study is enlarged the range of clothing expression by digital technology and open to possibility customized-manufacture.

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A Study on the Relations between Wooden Toy and Development of Infant and Young Children

  • Yang, Seung-Hee;Lee, Mi-Hye
    • 한국가구학회지
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    • 제21권3호
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    • pp.261-272
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    • 2010
  • The aim of the present study was to investigate the relations between wooden toy and development of infant and young children by taking only the commercialized wooden furniture which would be suitable for the developmental area for infant and young children, among the physical environment influencing the balanced development and development for them. The recommended standard for them was the commercialized good and the only advanced toys for the development of infant and young children was primary selected, in case of different furniture for same purpose with regardless of manufacturer, country of origin and price. The selected wooden toys for development of infant and young children covered the following test conditions. They keep the soft and clean surfaces and the corners are the round-finished so safe. The dyeing and coloring are so clear like the rainbow-colored in compliance with the international safety norm, and the paint material used are harmless to the people, because they have already passed the European Safety Norm EN 71 which is the most authoritative and strict standard in the world and contained accordingly little heavy metals, toxic substances and also allergy pigment under the maximum permissible standard. The size of wooden toys are not small enough for infant and young children to be able to swallow and this is important check point, because infants tend to feel the object in their own touching and therefore to have everything to the lip. The paint used was the toys-oriented goods and proved by the test regarding saliva and sweat.

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유아 대상 건강 영양 교육 프로그램 내용 및 효과에 대한 연구 (Health Nutrition Education Program Curriculum and the Effects for Preschool Children)

  • 이현옥
    • 한국식품영양학회지
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    • 제20권2호
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    • pp.202-208
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    • 2007
  • This study had two purposes: first, to develop various health nutrition education materials for preschool children as well as their teachers and parents, and second, to apply the health nutrition education programs systematically. The health nutrition education materials consisted of : 'Salt! I know what it is and eat it', 'Friend! Let's have breakfast.', 'I eat vegetables(rainbow)', 'I hate fat', 'I enjoy exercise', 'I am growing very fast'. 'I am curious about my body', 'My body is important', 'Cigarettes, what are they?', 'What's included in cigarettes?'. 'Smoking, it gives my family pain', 'Let's quit smoking', and 'Let's drink moderately'. During the education period, booklets, wall charts, photographs, food models, videos, animated films, and demonstrations were utilized. Based on age, there were significant differences in the effects of 'I am curious about my body'(p<0.05), 'What is included in cigarettes?'(p<0.01), and 'Smoking, it gives my family pain'(p<0.05). There were also significant differences in 'Salt! I know what it is and eat it', 'Friends! Let's have breakfast.', 'My body is important.' and 'Let's quit smoking'. As a result, to improve food habits and health nutrition knowledge, health nutrition education programs must be presented to day care center children as well as their parents, and persistent education is necessary.