• Title/Summary/Keyword: basis matrix

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A study on reduction of sensibility dimension for selection of wallpaper (벽지 선택을 위한 감성 차원 축소에 관한 연구)

  • Chun Young-Min;Kim Soon-Young;Kim Sung-Hwan;Chung Sung-Suk
    • Science of Emotion and Sensibility
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    • v.8 no.4
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    • pp.333-344
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    • 2005
  • The sensitivity adjectives on wall paper are collected. With the collected sensitivity adjective, we are going to develop the model which can recommend the wallpaper to customer. A large number of adjectives describing affective responses were collected from such diverse sources as questionnaire survey results, field survey results and internet survey result. To search the representative adjective of collected adjective, we used the diverse statistical analysis method. We attempted to decide the axis name of dimension through the MDS(Multi-Dimensional Scale) analysis method using the similarity matrix an4 to find a three or four reduced factors through the factor analysis method using the varimax rotation method. The result of the analysis showed that the reduced factors could account about $82\%$ when the number of factor is three(popular, elegance, and passable) ant about $93\%$ when the number of factor is four (elegance, passable, beautiful, and affectionate) On the basis of this result, we expect it can be used to develop the model recommending the wallpaper.

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Identification of Heat Stress-related Proteins and Low Molecular Weight HSP Expressed in Stem Tissues of Rice Plants by Proteomic Analysis (프로테옴 분석법에 의한 벼 줄기에서 발현하는 고온 스트레스 관련 단백질 및 저분자량 Heat Shock Protein의 분리 동정)

  • Lee, Dong-Gi;Kim, Kyung-Hee;Kim, Yong-Gu;Lee, Ki-Won;Lee, Sang-Hoon;Lee, Byung-Hyun
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.31 no.2
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    • pp.99-106
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    • 2011
  • In order to investigate rice stem proteome in response to heat stress, rice plants were subjected to heat treatment at 42$^{\circ}C$ and total soluble proteins were extracted from stem tissues, and were fractionated with 15% PEG (poly ethylene glycol) and separated by two-dimensional polyacrylamide gel electrophoresis (2-DE). After staining of 2-DE gels, 46 of differentially expressed proteins were extracted, digested by trypsin, and subjected to matrix assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) analysis. Proteins were identified through database search by using peptide mass fingerprints. Among them, 10 proteins were successfully identified. Seven proteins were up- and 3 proteins were down-regulated, respectively. These proteins are involved in energy and metabolism, redox homeostasis, and mitochondrial small heat shock proteins. The identification of some novel proteins in the heat stress response provides new insights that can lead to a better understanding of the molecular basis of heat-sensitivity in plants, and also useful to molecular breeding of thermotolerant forage crops.

Application of Fluorescence Polarization Immunoassay for the Screening of Ochratoxin A in Unpolished Rice (현미에서의 오크라톡신 A의 검색을 위한 형광편광면역분석법의 응용)

  • Park, Jung-Hyun;Chung, Duck-Hwa;Lee, In-Seon
    • Journal of Life Science
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    • v.16 no.6
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    • pp.1006-1013
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    • 2006
  • To High Throughput Screening (HTS), a homogeneous fluorescence polarization immunoassay (FPIA) was developed for the quantitative determination of ochratoxin A(OTA) using a $Victor^3$ (PerkinElmer). The homologous tracer, fluorescein-labelled OTA-EDF were synthesized and a specific OTA antibody has been used in the development of the method. It allowed the determination of OTA in the concentration range 0.5-200 ng/ml, with the detection limit of 0.3 ng/ml. The method developed was highly specific and reproducible. OTA spikes in unpolished rice extracts were determinable by FPIA with good recovery. For naturally contaminated unpolished rice samples some disagreement was observed between the results obtained by FPIA and HPLC, which could be related to the a little matrix effect observed for FPIA. Further research is needed to validate the procedure. On the basis of these initial results, this FPIA appears to meet the performance criteria for OTA screening of food samples without a complicated clean-up.

Development of TLD Algorithms by Monochromatic Fluorescence Radiations and Continuous Spectrum X-rays (단일에너지 형광 X선 및 연속 스펙트럼 X선장에 의한 TLD 알고리즘 개발)

  • Kim, Jang-Lyul;Kim, Bong-Hwan;Chang, Si-Young;Lee, Jai-Ki
    • Journal of Radiation Protection and Research
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    • v.23 no.3
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    • pp.159-174
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    • 1998
  • Personal dosimetry system is required to measure the personal dose equivalent accurately in a wide range of radiation fields, but the dose evaluation algorithms have been developed with the X-ray fields described in MOST Ordinance (equivalent to the ANSI N13.11) from which the actual fields to be monitored may be significantly different. To evaluate the dose more accurately when workers are exposed to the non-ANSI N13.11 radiation fields, two algorithms for monochromatic radiations (one algorithm was used for various ratios of TL dosimeter and the other for matrix approximation) were developed with the experimental data of the energy responses of the $CaSO_4:Dy$ TL materials irradiated by monochromatic X-ray fields recently established in KAERI, and compared with the another algorithm developed on the basis of the ANSI N13.11 continuous spectrum X-ray fields. Then it follows the discussions for some results of the algorithm testing including mixed fields irradiations and angular response conducted in IAEA/RCA intercomparison as well as ANSI and ISO continuous spectrum X-ray and monochromatic radiation fields. The developed algorithms were successfully performed the test not only in the continuous spectrum X-ray fields given by MOST Ordinance but also in the several non-MOST Ordinance radiation fields which could be encountered in the practical working environments.

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Towards Safety Based Design Procedure for Ships

  • Bakker, Marijn;Boonstra, Hotze;Engelhard, Wim;Daman, Bart
    • Journal of Ship and Ocean Technology
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    • v.5 no.3
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    • pp.1-13
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    • 2001
  • Present-day rules and regulations for the design and construction of ships are almost without exemption of a prescriptive and deterministic nature. Often it is argued that this situation is far from ideal; it does no right to the advances, which have been made during the past decades in engineering tools in marine technology, both in methodology and in computational power. Within IMO this has been realized for some time and has resulted in proposals to use Formal Safety Assessment(FSA) as a tool to improve and to modernize the rule making process. The present paper makes use of elements of the FSA methodology, but instead of working towards generic regulations or requirements, a Risk Assessment Approach, not unlike a 'safety case'; valid for a certain ship or type of ship is worked out. Delft University of Technology investigated the application of safely assessment procedures in ship design, in co-operation with Anthony Veder Shipowners and safety experts from Safely Service Center BV. The ship considered is a semi-pressurized-fully refrigerated LPG carrier. On the basis of the assumption that a major accident occurs, various accident, scenarios were considered and assessed, which would impair the safety of the carrier. In a so-called Risk Matrix, in which accident frequencies versus the consequence of the scenarios are depicted, the calculated risks all appeared lo be in the ALARP('as low as reasonable practicable') region. A number of design alternatives were compared, both on safety merits and cost-effectiveness. The experience gained with this scenario-based approach will be used to establish a set of general requirements for safety assessment techniques in ship design. In the view that assessment results will be most probably presented in a quasi-quantified manner, the requirements are concerned with uniformity of both the safety assessment. These requirements make it possible that valid comparison between various assessment studies can be made. Safety assessment, founded on these requirements, provides a validated and helpful source of data during the coming years, and provides naval architects and engineers with tools experience and data for safety assessment procedures in ship design. However a lot of effort has to be spent in order to make the methods applicable in day-to-day practice.

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Properties of Non-cement Artificial Stone Utilizing the Waste Porcelain and Waste Glass (폐유리 및 폐자기를 활용한 무시멘트계 인조석재의 특성)

  • Kim, Tae-Hyun;Lee, Seung-Ho;Lee, Sang-Soo;Song, Ha-Young
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.4 no.2
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    • pp.136-142
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    • 2016
  • As the rapid industrialization and modernization progress of the world it is becoming a fast-paced environment pollution. And, dust or environment pollution to solve reckless diggings of natural aggregate cause a serious problem. This study was used a Blast Furnace Slag and Combined Heat and Power Plant of Fly Ash as a cement substitute to reduce $CO_2$ emissions during cement production, this study intend to suggest it's result as basic data 'Properties of Artificial Stone interior or exterior materials type utilizing industrial by-product and waste resource' utilizing Waste Porcelain and Waste Glass. As a result, it was high strength that matrix added the Combined Heat and Power Plant of Fly Ash of addition ratio 40%. Also, pre-experiment was conduct as mixing ratio of waste glass, waste porcelain on the basis of the preceding experiment, proper mixing ratio was judged that proper of waste glass, waste porcelain was mixing ratio 60, 70 (%) of appeared surface aggregate ratio more than 45%.

Effects of Gagamsosokmyeong-tang(Jiajianxiaoxuming-tang) Treatment on the Monosodium Iodoacetate-induced Early Stage Osteoarthritis in Rats (가감소속명탕이 Monosodium Iodoacetate로 유발된 골관절염의 초기변화에 미치는 영향)

  • Park, Dong-Soo;Jeong, Su-Hyeon;Kim, Soon-Joong;Seo, Il-Bok
    • Journal of Korean Medicine Rehabilitation
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    • v.21 no.4
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    • pp.49-65
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    • 2011
  • Objectives: This study was performed to investigate the effects of Gagamsosokmyeong-tang(Jiajianxiaoxuming-tang) on the monosodium iodoacetate(MIA) induced early state osteoarthritis in rats. Methods: Osteoarthritis was induced by injection of MIA(0.25 mg) into knee joints of rats. Osteoarthritis rats were divided into control(n=8) and treated=8 group respectively, Control group was taken distilled water and treated group was taken extracts of Gagamsosokmyeong-tang(Jiajianxiaoxuming-tang) by orally for 20 days. Body weight was measured at 0, 5, 10, 15, 20 days after MIA injection. At the end of experiment, gross and histopathological examination on the articular cartilages of the knee joints were performed. Proteoglycan(PG) content of articular cartilages were analysed by safranine O staining method. The content of tumor necrosis $factor-{\alpha}(TNF-{\alpha})$, $interleukin-1{\beta}(IL-1{\beta})$ in synovial fluids were analysed by enzyme-inked inmunosorbent assay(ELISA) method. And also cycloxygenase-2(COX-2), matrix metalloproteinase 3(MMP-3), inducible nitric oxide synthase(iNOS), calpain immunochistochemical examination on the knee joints were performed. Results: PG content in articular cartilages of the treated group was significantly increased compared with control group. Histopathological osteoarthritic score of the treated group was significantly decreased compared with control group. $TNF-{\alpha}$ content in synovial fluids, expression of iNOS and calpain in synovial membrane of the treated group were significantly decreased compared with control group. But body weight, $1L-1{\beta}$ content in synovial fluids, expression of iNOS and MMP-3 of the treated group were not significantly changed compared with control group. Conclusions: On the basis of these results, we conclude that Gagamsosokmyeong-tang(Jiajianxiaoxuming-tang) has anti-arthritic effects on the MIA induced early stage osteoarthritis in rats.

Quantitative Taxonomic Studies on the Group of Salix pseudo-lasiogyne Growing in Korea (한국산(韓國産) 능수버드나무류(類)의 수량적(数量的) 분류(分類)에 관(關)한 연구(硏究))

  • Kim, Eun Shik;Lee, Tchang Bok
    • Journal of Korean Society of Forest Science
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    • v.59 no.1
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    • pp.1-8
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    • 1983
  • Classification on the group of Salix pseudo-lasiogyne growing in Korea, was conducted using cluster analysis, factor analysis, and principal component analysis. Thirty-six characters(Table 2) of the 5 basis species were measured. The phenograms and ordination plot showing the relationships between the species were made by applying the cluster analysis and principal component analysis. Five important factors, such as leaf blade width, number of right serration, angle of leaf apex, number of flowers in an ament, and the ratio of petiole length to width, were inferred from the rotated factor matrix, and their state values were presented in polygonal diagram. Salix pseduo-lasiogyne and S. babylonica were similarly correlated and linked in one group, S. dependens and S. matsudana for tortuosa were secondarily linked in the other group. S. koreensis appeared as an aliemated species from each of the two groups.

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SEM AND CONFOCAL LASER SCANNING MICROSCOPIC STUDY ON THE CORROSION OF DENTAL RESTORATIVE RESINS (주사전자현미경과 공촛점 레이저 주사현미경을 이용한 치과용 수복레진의 부식에 관한 연구)

  • Yang, Kuy-Ho;Park, Eun-Hae;Jeong, Byung-Cho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.29 no.3
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    • pp.430-438
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    • 2002
  • The aim of this study was to evaluate the resistance to degradation of four commercial composite resins-Prodigy(Kerr, USA), Vitalescence(Ultradent, USA), Z 250(3M, USA), Filtek flow(3M, USA)- in an alkaline solution. Resistance to degradation was evaluated on the basis of following parameters: (a) mass loss(%), (b) Si loss(ppm), (c) degradation depth($\mu}m$). The results were as follows: 1. There was no significant difference between Prodigy and Vitalescence, also Z 250 and Filtek flow. But, there was significant difference between former group and latter group. 2. The sequence of the degree of degradation layer depth was in descending order by Z 250, Filtek flow, Prodigy, Vitalescence. There was significant difference among the materials. 3. The sequence of the Si loss was in descending order by Filtek flow, Z 250, Prodigy, Vitalescence. There was significant difference among the materials. 4. The correlation coefficient between mass loss and degradation layer depth(r=0.714, p<0.05), mass loss and Si loss(r=0.770, p<0.05), and degradation layer depth and Si loss(r=0.930, p<0.05) were relatively high. 5. When observed with SEM, destruction of bonding was observed between resin matrix and filler. 6. When observed with CLSM, degradation layer depth of composite resin surface was observed.

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A Study on the Cut Detection System of Video Data using MSE (MSE를 이용한 동영상데이터의 컷 검출시스템에 관한 연구)

  • Kim Dan-Hwan;Joung Ki-Bong;Oh Moo-Song
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.8 no.7
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    • pp.1399-1404
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    • 2004
  • The development of computer technology and the advancement of the technology of information and communications spread the technology of multimedia and increased the use of multimedia data with large capacity. Users can grasp the overall video data and they are able to play wanted video back. To grasp the overall video data it is necessary to offer the list of summarized video data information. In order to search video efficiently an index process of video data is essential and it is also indispensable skill. Therefore, this thesis suggested the effective method about the cut detection of frames which will become a basis of an index based on contents of video image data. This suggested method was detected as the unchanging pixel rotor intelligence value, classified into diagonal direction. Pixel value of color detected in each frame of video data is stored as A(i, i) matrix - i is the number of frames, i is an image height of frame. By using the stored pixel value as the method of UE(Mean Square Error) I calculated a specified value difference between frames and detected cut quickly and exactly in case it is bigger than threshold value set in advance. To carry out an experiment on the cut detection of lames comprehensively, 1 experimented on many kinds of video, analyzing and comparing efficiency of the cut detection system.